阅读说明：本技术 清洁设备 (Cleaning device ) 是由 张无忌 夏昌太 于 2020-12-21 设计创作，主要内容包括：本申请提供一种清洁设备,清洁设备包括主体、驱动组件和清洁组件,驱动组件包括驱动装置、至少一个传动件和活动支架,驱动装置安装于主体,驱动装置具有朝主体的底部延伸的驱动轴,活动支架可活动地连接于主体的底部,活动支架与驱动轴间隔设置,活动支架的活动方向大体上垂直于驱动轴的延伸方向,至少一个传动件连接于活动支架和驱动轴之间,驱动装置的驱动轴经至少一个传动件带动活动支架前后往复运动；清洁组件可拆卸连接于活动支架,以使清洁组件随活动支架前后往复运动,以往复清洁待清洁表面。驱动装置可以充分提供活动支架往复运动方向上的动力力矩,可以有效清洁地面上较为重度的固态污渍或液态污渍。(The application provides a cleaning device, the cleaning device comprises a main body, a driving assembly and a cleaning assembly, the driving assembly comprises a driving device, at least one transmission piece and a movable support, the driving device is installed on the main body, the driving device is provided with a driving shaft extending towards the bottom of the main body, the movable support is movably connected to the bottom of the main body, the movable support and the driving shaft are arranged at intervals, the moving direction of the movable support is substantially perpendicular to the extending direction of the driving shaft, the at least one transmission piece is connected between the movable support and the driving shaft, and the driving shaft of the driving device drives the movable support to reciprocate back and forth through the at least one transmission; the cleaning component is detachably connected to the movable support, so that the cleaning component can reciprocate back and forth along with the movable support to clean the surface to be cleaned repeatedly. The driving device can fully provide power moment on the reciprocating motion direction of the movable support, and can effectively clean relatively severe solid or liquid stains on the ground.)

1. A cleaning device is characterized by comprising a main body, a driving assembly and a cleaning assembly, wherein the driving assembly comprises a driving device, at least one transmission part and a movable support, the driving device is mounted on the main body, the driving device is provided with a driving shaft extending towards the bottom of the main body, the movable support is movably connected to the bottom of the main body, the movable support and the driving shaft are arranged at intervals, the moving direction of the movable support is substantially perpendicular to the extending direction of the driving shaft, the at least one transmission part is connected with the movable support and the driving shaft, and the driving shaft of the driving device drives the movable support to reciprocate back and forth through the at least one transmission part; the cleaning assembly is detachably connected to the movable support, so that the cleaning assembly reciprocates back and forth along with the movable support to clean the surface to be cleaned repeatedly.

2. The cleaning apparatus according to claim 1, wherein the at least one transmission member includes a first transmission member and a second transmission member, the first transmission member is fixedly connected to the driving shaft, the second transmission member has a first connection portion and a second connection portion, the first connection portion is rotatably connected to the first transmission member, a center distance between the first connection portion and the driving shaft in a direction perpendicular to the driving shaft is a first distance, the second connection portion is rotatably connected to the movable bracket, a center distance between the second connection portion and the first connection portion in a direction perpendicular to the driving shaft is a second distance, both the first distance and the second distance are different from zero, and the second distance is greater than or equal to the first distance.

3. The cleaning apparatus as claimed in claim 2, wherein the movable bracket is provided with a first shaft hole on a side thereof adjacent to the bottom of the main body, the first shaft hole extending in a direction parallel to the direction in which the driving shaft extends, and the second connecting portion includes a protruding shaft, and the second connecting portion is rotatably engaged with the first shaft hole through the protruding shaft.

4. The cleaning apparatus as claimed in claim 3, wherein the first connecting portion includes a rotating body connected to an end of the protruding shaft away from the movable bracket, a second shaft hole is formed in a surface of the rotating body away from the protruding shaft, an extending direction of the second shaft hole is parallel to an extending direction of the driving shaft, and the first transmission member is at least partially received in the second shaft hole and is rotatably engaged with the second shaft hole.

5. The cleaning apparatus defined in claim 4, wherein the first transmission member is a circular wheel, the first transmission member is received entirely within the second shaft aperture and is rotatably engaged with the second shaft aperture via a bearing, and the first transmission member is provided with an eccentric aperture for locating engagement with the drive shaft.

6. The cleaning apparatus as claimed in claim 2, wherein the first connecting portion and the second connecting portion are arranged in a row in a direction parallel to the driving shaft, the first connecting portion abuts against the first transmission member on a side away from the second connecting portion, and the second connecting portion abuts against the movable bracket on a side away from the first connecting portion.

7. The cleaning apparatus defined in claim 6, wherein the first coupling portion and the first transmission member are disposed to overlap at least in a direction parallel to an extension direction of the drive shaft, and the second coupling portion and the movable bracket are disposed to overlap at least in part in a direction parallel to an extension direction of the drive shaft.

8. The cleaning apparatus defined in claim 6, wherein an orthographic projection of the first connection portion on the movable bracket covers an orthographic projection of the second connection portion on the movable bracket.

9. The cleaning apparatus as claimed in claim 2, wherein the second connecting portion is protrudingly provided with respect to the bottom surface of the main body to support the movable bracket such that a movable gap is reserved between the movable bracket and the main body.

10. The cleaning apparatus as claimed in any one of claims 1 to 9, wherein a movable gap is reserved between the movable bracket and the main body, the cleaning apparatus includes at least one roller rotatably connected to the movable bracket, the at least one roller is partially located in the movable gap and rolls against a side of the main body close to the movable bracket, or the at least one roller is rotatably connected to a bottom of the main body, and the at least one roller is partially located in the movable gap and rolls against a side of the movable bracket close to the main body.

11. The cleaning apparatus defined in any one of claims 1-9, wherein the main body is provided with a recess in a bottom portion thereof, the drive shaft extends into the recess, the at least one drive member is at least partially received in the recess, and the movable bracket is disposed to cover the recess of the main body and the at least one drive member.

12. The cleaning apparatus as claimed in any one of claims 1 to 9, wherein the movable support is provided with at least one sliding slot, and the main body is provided with at least one guide block protruding from a bottom thereof, the at least one guide block being slidably fitted to the at least one sliding slot, respectively.

13. The cleaning apparatus as claimed in claim 12, further comprising a limiting component, wherein the limiting component comprises at least one limiting member, the at least one limiting member is locked to the at least one guiding block, each limiting member is provided with a limiting portion located in the sliding slot, and the limiting portion is used for abutting against one side of the movable bracket away from the main body to limit the movable bracket from separating from the at least one guiding block.

14. The cleaning apparatus defined in any one of claims 1-9, further comprising a restraining assembly coupled to a bottom portion of the main body and restraining the movable support in a predetermined position such that a separation of the movable support from a surface to be cleaned satisfies a predetermined distance threshold.

15. The cleaning apparatus defined in claim 14, wherein the preset distance threshold is greater than half of the shortest distance of the bottom of the body from the surface to be cleaned.

16. The cleaning apparatus as claimed in any one of claims 1 to 9, wherein the cleaning assembly comprises a support plate and a flexible cleaning member, the support plate is detachably connected with the movable bracket, the support plate is overlapped on the side of the movable bracket, which faces away from the main body, and the flexible cleaning member is detachably connected with the side of the support plate, which faces away from the movable bracket.

17. The cleaning apparatus defined in claim 16, wherein the tray is provided with two oppositely disposed engaging portions that engage the ends of the movable bracket, respectively.

18. The cleaning apparatus defined in claim 16, wherein the movable bracket is provided with a projection that is disposed beyond the blade in a direction parallel to the surface to be cleaned, the flexible cleaning element releasably connecting the projection and the blade to lock the blade relative to the movable bracket.

19. The cleaning apparatus defined in any one of claims 1-9, wherein the main body comprises a chassis carrying the cartridge arrangement and a cartridge connected to the chassis, the drive means being mounted to the chassis or the cartridge, wherein the cartridge is a dirt cartridge, or a water tank, or a combination of a dirt cartridge and a water tank.

20. The cleaning apparatus as claimed in claim 19, wherein the main body further comprises two traveling wheels disposed oppositely, the two traveling wheels being mounted to the chassis and extending out of a bottom surface of the chassis, and a reciprocating direction of the movable bracket being perpendicular to an opposite direction of the two traveling wheels.

Technical Field

The application relates to the field of cleaning equipment, in particular to cleaning equipment.

Background

The cleaning structure of present cleaning device is more single, and cleaning effect is more limited, for example, sweep and drag integrative robot, through only setting up fixed mop in the robot bottom, then drive the mop through sweeping and dragging integrative robot and remove in order to clean ground, but to the more severe solid-state spot or liquid material, above-mentioned cleaning device is lower to the clean degree on ground.

Disclosure of Invention

The embodiment of the application provides a cleaning device to solve cleaning device's clean single structure, the limited technical problem of clean effect.

The embodiment of the application provides a cleaning device, which comprises a main body, a driving assembly and a cleaning assembly, wherein the driving assembly comprises a driving device, at least one transmission part and a movable support, the driving device is installed on the main body, the driving device is provided with a driving shaft extending towards the bottom of the main body, the movable support is movably connected to the bottom of the main body, the movable support is arranged at an interval with the driving shaft, the moving direction of the movable support is substantially perpendicular to the extending direction of the driving shaft, the at least one transmission part is connected between the movable support and the driving shaft, and the driving shaft of the driving device drives the movable support to reciprocate back and forth through the at least one transmission part; the cleaning assembly is detachably connected to the movable support, so that the cleaning assembly reciprocates back and forth along with the movable support to clean the surface to be cleaned repeatedly.

Different from the prior art, the cleaning device is mounted on the main body through the driving device, the driving device is provided with a driving shaft extending towards the bottom of the main body and is movably connected to the bottom of the main body through the movable bracket, the movable bracket is arranged at a distance from the driving shaft, the moving direction of the movable bracket is substantially perpendicular to the extending direction of the driving shaft, and the at least one transmission piece is connected between the movable bracket and the driving shaft, so that the driving shaft of the driving device can drive the movable bracket to reciprocate back and forth through the at least one transmission piece; the cleaning assembly is detachably connected to the movable support, the cleaning assembly can reciprocate back and forth along with the movable support to clean the surface to be cleaned repeatedly, the driving device can fully provide power moment in the reciprocating motion direction of the movable support, and heavy solid or liquid stains on the ground can be cleaned effectively; and, can very conveniently dismantle with the cleaning assembly with the movable support separates, then cleaning equipment can break away from the cleaning assembly and then the cleanness of other modes to have better obstacle-surmounting ability.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

FIG. 1 is a first schematic diagram of a longitudinal cross-sectional structure of a cleaning device provided by an embodiment of the present application;

FIG. 2 is an exploded view of a part of the components of a cleaning device according to an embodiment of the present disclosure;

FIG. 3 is a second exploded view of a portion of the components of a cleaning device according to an embodiment of the present disclosure;

FIG. 4 is a first schematic structural diagram of a cleaning apparatus provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram II of a cleaning device provided in the embodiment of the present application;

FIG. 6 is a third exploded view of a part of the components of a cleaning device according to an embodiment of the present disclosure;

FIG. 7 is a fourth exploded schematic view of a part of the components of a cleaning device according to an embodiment of the present disclosure;

FIG. 8 is a schematic exploded view of a fifth part of a cleaning device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram III of a cleaning device provided in an embodiment of the present application;

FIG. 10 is an enlarged view taken at A in FIG. 9 (an assembled structure of the first transmission member and the drive shaft);

FIG. 11 is a schematic structural diagram of a cleaning device according to an embodiment of the present disclosure;

FIG. 12 is an enlarged view of the portion B of FIG. 11 (a sequential assembly structure of the second transmission member, the first transmission member and the drive shaft);

FIG. 13 is a sixth schematic exploded view of a portion of the components of a cleaning appliance according to another embodiment;

FIG. 14 is a schematic diagram of a longitudinal cross-sectional structure of a cleaning device according to an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of a longitudinal cross-sectional structure of a cleaning device according to an embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of a cleaning device according to an embodiment of the present disclosure;

FIG. 17 is an enlarged schematic view at C in FIG. 15 (an assembled structure of the movable bracket, the second transmission member, the first transmission member, and the driving device);

fig. 18 is an enlarged schematic view of fig. 16 at D (assembly structure of the stopper and the movable bracket);

FIG. 19 is an exploded view of a portion of a cleaning device according to an embodiment of the present disclosure;

FIG. 20 is a schematic structural view of a movable support of a cleaning device according to an embodiment of the present disclosure;

FIG. 21 is a schematic structural view of a movable support and a cleaning assembly of a cleaning device according to an embodiment of the present disclosure;

FIG. 22 is a seventh exploded view of a portion of the components of a cleaning device according to an embodiment of the present disclosure;

fig. 23 is an exploded schematic view eight of a part of components of a cleaning device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if not conflicted, the various features of the embodiments of the present application may be combined with each other within the scope of protection of the present invention. Additionally, while functional block divisions are performed in apparatus schematics, with logical sequences shown in flowcharts, in some cases, steps shown or described may be performed in sequences other than block divisions in apparatus or flowcharts. The terms "first", "second", "third", and the like used in the present invention do not limit data and execution order, but distinguish the same items or similar items having substantially the same function and action.

Referring to fig. 1 to 3, the present embodiment provides a cleaning apparatus 100, wherein the cleaning apparatus 100 includes a main body 10 and at least one road wheel 60. The at least one road wheel 60 is mounted on the main body 10, and the main body 10 can walk on the surface 70 to be cleaned through the at least one road wheel 60. The cleaning device 100 further includes a drive assembly 20 and a cleaning assembly 30. The drive assembly 20 includes a drive mechanism 80 and a movable support 23. The driving mechanism 80 is installed in the main body 10, and the movable support 23 is movably connected to the bottom of the main body 10 and connected to the driving mechanism 80. The movable support 23 reciprocates along a direction parallel to the surface 70 to be cleaned under the driving action of the driving mechanism 80, the cleaning assembly 30 is detachably connected to the movable support 23, and the cleaning assembly 30 reciprocates back and forth along with the movable support 23 so as to clean the surface 70 to be cleaned repeatedly.

The driving mechanism 80 includes a driving device 21 and at least one transmission member 22, the driving device 21 is mounted to the main body 10, and the driving device 21 has a driving shaft 211 extending toward the bottom of the main body 10. The movable bracket 23 is movably connected to the bottom of the main body 10, the movable bracket 23 is spaced from the driving shaft 211, and the moving direction of the movable bracket 23 is substantially perpendicular to the extending direction of the driving shaft 211. The at least one transmission member 22 is connected between the movable support 23 and the driving shaft 211, and the driving shaft 211 of the driving device 21 drives the movable support 23 to reciprocate back and forth through the at least one transmission member 22. The cleaning assembly 30 is detachably coupled to the movable frame 23 so that the cleaning assembly 30 reciprocates back and forth with the movable frame 23 to repeatedly clean the surface 70 to be cleaned. Wherein the drive device 21 and the at least one transmission element 22 form the drive mechanism 80.

Unlike the prior art, the cleaning device 100 is mounted on the main body 10 through the driving device 21, the driving device 21 has a driving shaft 211 extending toward the bottom of the main body 10 and is movably connected to the bottom of the main body 10 through the movable bracket 23, the movable bracket 23 is spaced from the driving shaft 211, the moving direction of the movable bracket 23 is substantially perpendicular to the extending direction of the driving shaft 211, and the at least one transmission member 22 is connected between the movable bracket 23 and the driving shaft 211, so that the driving shaft 211 of the driving device 21 can drive the movable bracket 23 to reciprocate back and forth through the at least one transmission member 22; the cleaning assembly 30 is detachably connected to the movable support 23, the cleaning assembly 30 can reciprocate back and forth along with the movable support 23 to clean the surface 70 to be cleaned repeatedly, the driving device 21 can provide power moment in the reciprocating direction of the movable support 23 fully, and heavy solid or liquid stains on the ground can be cleaned effectively; moreover, the cleaning assembly 30 can be conveniently detached from the movable bracket 23, so that the cleaning device 100 can get rid of the cleaning assembly 30 and other modes of cleaning, and has better obstacle crossing capability.

It is to be understood that the cleaning device 100 may be a hand-held cleaning device 100, for example, the cleaning device 100 may be any one of a hand-held scrubber, or a hand-held window scrubber; the cleaning device 100 may also be an automated cleaning device 100, for example, the cleaning device 100 may be any one of a sweeping robot, a sweeping and mopping integrated robot, a floor wiping robot, a floor washing robot, or the like. Of course, the cleaning device 100 may not be limited to the above examples, and those skilled in the art can apply the solution of the present application to a specific cleaning device 100 as needed. The embodiment of the present application exemplifies that the cleaning apparatus 100 is a sweeping and mopping integrated robot.

In the present embodiment, the cleaning apparatus 100 is a sweeping and mopping integrated robot. The main body 10 is a part of the main body 10 of the cleaning apparatus 100, and the main body 10 may have any shape, such as a circle, a rectangle, or a D-shape, and is not limited herein. In an alternative embodiment, the main body 10 of the cleaning device 100 may also be in other design configurations, for example, the main body is an integrally formed structure, and a structure disposed separately from the left and right, and the material, shape, structure, etc. of the main body are not limited in the embodiment of the present invention.

The main body 10 may include a chassis 13 and an upper cover assembly 15, the upper cover assembly 15 being detachably mounted to the chassis 13 to protect various functional components inside the cleaning device 100 from being damaged by violent impacts or unintentionally dripped liquid during use; the chassis 13 and/or the upper cover assembly 15 are used to carry and support various functional components. The surface of the upper cover assembly 15, which is away from the chassis 13, forms an appearance surface, which can improve the overall appearance of the cleaning device 100, and the appearance surface can be provided with keys, so that a user can conveniently operate the cleaning device 100 through the keys. The inner cavity is formed between the chassis 13 and the upper cover assembly 15 and is used for providing arrangement space for internal components of the cleaning device 100. The cleaning apparatus 100 may arrange a vacuum pump, a circuit board, a floor detection sensor, a collision detection sensor, a wall sensor, and the like in the inner chamber.

In the embodiment of the present application, the cleaning device 100 includes a traveling mechanism 90 installed on the chassis 13, the traveling mechanism 90 includes two traveling wheels 60, at least one universal wheel 91, and a motor for driving the wheels to rotate, the two traveling wheels 60 and the at least one universal wheel 91 at least partially protrude out of the bottom of the chassis 13, for example, under the effect of the self weight of the cleaning device 100, the two traveling wheels 60 may be partially hidden in the chassis 13. In an alternative embodiment, the travel mechanism 90 may further include any one of a track triangle, a Mecanum wheel, and the like. The travel mechanism 90 may not include the at least one travel wheel 60.

The cleaning apparatus 100 may be designed to autonomously plan a path over the floor surface, or may be designed to move over the floor surface in response to remote control commands. Cleaning device 100 can navigate through one of them or several kinds of combinations such as gyroscope, accelerometer, camera, GPS location and/or laser radar, for example, cleaning device 100 can set up laser radar in the top surface protrusion, scans the acquisition obstacle data to the surrounding environment through laser radar, establishes the environment map according to obstacle data, can carry out real-time location according to the environment map, is convenient for plan clean route.

The cleaning device 100 may include at least one middle sweeper brush, the at least one middle sweeper brush may be disposed in a receiving groove formed at the bottom of the chassis 13, and a dust suction opening is formed in the receiving groove and communicated with the dust collecting box and the dust suction fan, so that when the middle sweeper brush rotates, dust and garbage on the ground are stirred up, and the dust and garbage are sucked into the dust collecting box from the dust suction opening by using a suction force generated by the dust suction fan.

The cleaning device 100 comprises a water tank, and liquid in the water tank can be conveyed to the cleaning assembly 30 through a peristaltic pump and a conduit to wet the cleaning assembly 30, so that the cleaning assembly 30 can wet the ground, thereby being beneficial to taking away dirt on the ground when the cleaning assembly 30 reciprocates and improving the cleaning effect. In other embodiments, the liquid in the tank may also penetrate to the cleaning assembly 30 by gravity.

With continued reference to fig. 4 and 5, the main body 10 further includes a cleaning box 14 connected to the chassis 13, and the chassis 13 is configured to carry the cleaning box 14. Wherein, the cleaning box 14 is a dust box, or a water tank, or a combination of the dust box and the water tank. The assembly form of the cleaning cartridge 14 and the chassis 13 may be various, for example, the upper cover assembly 15 is formed with a mounting groove, the cleaning cartridge 14 is detachably mounted in the mounting groove, and the bottom surface of the chassis 13 forms the bottom surface of the main body 10. In other embodiments, the chassis 13 is provided with a mounting groove on the peripheral side so that the chassis 13 is formed with a notch on the peripheral side, and the cleaning cartridge 14 is detachably mounted in the mounting groove, so that the bottom surface of the cleaning cartridge 14 and the bottom surface of the chassis 13 constitute the bottom surface of the main body 10.

The driving device 21 is mounted to the chassis 13 or the cleaning cartridge 14. In the present embodiment, the driving device 21 is attached to the chassis 13. The drive unit 21 is mounted in the interior between the chassis 13 and the lid assembly 15. In other embodiments, the driving device 21 may be attached to the cleaning cartridge 14.

With continued reference to fig. 6 and 7, in the present embodiment, the driving device 21 may include a driving motor 201 and a speed reducing mechanism 202. The speed reduction mechanism 202 is provided with an input shaft and the drive shaft 211. The driving motor 201 is fixed to the main body 10 and is drivingly connected to the input shaft of the speed reducing mechanism 202, so as to transmit power to the speed reducing mechanism 202 through the input shaft, and further reduce the speed to drive the driving shaft 211 to rotate, so as to output a larger power torque to the movable support 23, and increase the force of the cleaning assembly 30 on the ground. In other embodiments, the driving device 21 includes a driving motor 201, and an output end of the driving motor 201 forms the driving shaft 211, so that the driving motor 201 directly outputs power through the driving shaft 211.

The extension direction of the driving shaft 211 is substantially parallel to the height direction of the main body 10, and the driving shaft 211 extends to be close to the bottom surface of the main body 10.

The movable bracket 23 is substantially in the shape of a flat plate, and the movable bracket 23 is movably connected to the bottom of the main body 10. The movable support 23 has a direction of movement substantially parallel to the surface 70 to be cleaned. In this embodiment, the reciprocating direction of the movable bracket 23 is perpendicular to the opposite direction of the two traveling wheels 60, that is, the movable bracket 23 can reciprocate in the advancing direction of the cleaning device 100. In other embodiments, the reciprocating direction of the movable support 23 may also be parallel to the opposite direction of the two walking wheels 60, or the reciprocating direction of the movable support 23 may also form an included angle with the opposite direction of the two walking wheels 60.

With reference to fig. 6 and 7, in the present embodiment, the movable bracket 23 may be slidably connected to the bottom of the main body 10, so that the movable bracket 23 is movably connected to the bottom of the main body 10. The movable support 23 is provided with at least one sliding groove 232, the main body 10 is convexly provided with at least one guide slider 12 at the bottom, the at least one guide slider 12 is respectively in sliding fit with the at least one sliding groove 232, wherein the sliding groove 232 is a long strip-shaped sliding groove, and the extending length of the sliding groove 232 is greater than or equal to the movement stroke of the movable support 23. In the present embodiment, the movable bracket 23 is provided with a first sliding slot 2321, a second sliding slot 2322 and a third sliding slot 2323, the first sliding slot 2321 and the second sliding slot 2322 are respectively symmetrically arranged at the left side and the right side of the movable bracket 23, the third sliding slot 2323 is arranged at the middle of the movable bracket 23, and the third sliding slot 2323, the first sliding slot 2321 and the second sliding slot 2322 are approximately distributed in a triangular shape; the at least one guide shoe 12 includes a first guide shoe 121, a second guide shoe 122, and a third guide shoe 123. The first guide slider 121 is in sliding fit with the first sliding groove 2321, the second guide slider 122 is in sliding fit with the second sliding groove 2322, and the third guide slider 123 is in sliding fit with the third sliding groove 2323, so that the movable support 23 is stably guided in a sliding manner, the reciprocating motion of the movable support 23 can be prevented from being blocked by an external obstacle and severely shaking, and the cleaning device 100 is prevented from severely shaking during automatic walking.

The number of the first sliding grooves 2321 may be one or more, the number of the second sliding grooves 2322 may be one or more, the number of the third sliding grooves 2323 may be one or more, the number of the first sliding blocks 121 is the same as the number of the first sliding grooves 2321, the number of the second sliding blocks 122 is the same as the number of the second sliding grooves 2322, and the number of the third sliding blocks 123 is the same as the number of the third sliding grooves 2323. In other embodiments, the movable bracket 23 may not be provided with the third sliding slot 2323, and the main body 10 may not be provided with the third guide slider 123.

In other embodiments, the bottom of the main body 10 is provided with at least one sliding slot 232, the movable bracket 23 is provided with at least one guiding block 12, and the at least one guiding block 12 is slidably engaged with the at least one sliding slot 232.

In other embodiments, a guide structure is disposed at the bottom of the main body 10, and the movable bracket 23 is slidably engaged with the guide structure, so that the movable bracket 23 is movably connected to the bottom of the main body 10.

In other embodiments, a plurality of elastic members may be disposed between the movable bracket 23 and the bottom of the main body 10, and the plurality of elastic members may serve to elastically connect the movable bracket 23 and the main body 10, so as to movably connect the movable bracket 23 to the bottom of the main body 10. The elastic element can be any one or combination of a plurality of springs, rubber elements or silica gel elements.

With reference to fig. 6 and 7, the cleaning assembly 30 includes a flexible cleaning element 32, the flexible cleaning element 32 may be directly or indirectly attached to a side of the movable bracket 23 away from the main body 10 by a hook-and-loop fastener, the flexible cleaning element 32 may reciprocate with the movable bracket 23, the flexible cleaning element 32 is unfolded along a surface of the movable bracket 23 away from the bottom of the main body 10, the flexible cleaning element 32 may be attached to the surface 70 to be cleaned, and the flexible cleaning element 32 covers a larger area of the surface to be cleaned, which is beneficial to improving the cleaning effect. The flexible cleaning element 32 may be made of one or more of fiber, cotton or collodion. The flexible cleaning element 32 may be a single-layer structure or a multi-layer composite structure, and may be set by those skilled in the art according to actual needs.

Referring to fig. 7 to 12, in the present embodiment, the at least one transmission member 22 includes a first transmission member 221 and a second transmission member 222, the first transmission member 221 is fixedly connected to the driving shaft 211, the second transmission member 222 is provided with a first connection portion 224 and a second connection portion 225, the first connection portion 224 is rotatably connected to the first transmission member 221, a center distance between the first connection portion 224 and the driving shaft 211 in a direction perpendicular to the driving shaft 211 is a first distance L1, the second connection portion 225 is rotatably connected to the movable bracket 23, a center distance between the second connection portion 225 and the first connection portion 224 in the direction perpendicular to the driving shaft 211 is a second distance L2, neither the first distance L1 nor the second distance L2 is zero, and the second distance L2 is greater than or equal to the first distance L1.

Wherein, the distance between the centers of the first connecting portion 224 and the driving shaft 211 in the direction perpendicular to the driving shaft 211 is the distance between the center of rotation of the first connecting portion 224 and the center of the driving shaft 211 in the direction perpendicular to the driving shaft 211; the center distance between the second connecting portion 225 and the first connecting portion 224 in the direction perpendicular to the driving shaft 211, that is, the distance between the center of rotation of the second connecting portion 225 and the center of rotation of the first connecting portion 224 in the direction perpendicular to the driving shaft 211.

The second connecting portion 225 may reciprocate linearly with the movable bracket 23. A vertical distance D from the center of the driving shaft 211 to a motion track of the second connecting portion 225 is set to be D, wherein the vertical distance D satisfies D ≦ L2-L1, so that the first transmission member 221, the second transmission member 222, the movable bracket 23 and the main body 10 may form a crank-slider mechanism, wherein the first transmission member 221 corresponds to a crank, and the first transmission member 221 may rotate 360 ° under the driving of the driving device 21; the second transmission member 222 corresponds to a link, and the second transmission member 222 functions to connect the second transmission member 222 and the movable bracket 23; since the movable bracket 23 is slidably connected to the bottom of the main body 10, the movable bracket 23 corresponds to a sliding member that can slide back and forth on the bottom of the main body 10; the main body 10 corresponds to a fixed frame, and the main body 10 can stably connect the first transmission member 221 and the movable bracket 23.

The driving shaft 211 of the driving device 21 drives the first transmission member 221 to rotate, and the first transmission member 221 can transmit a rotation torque to the second transmission member 222, so as to drive the movable bracket 23 to slide back and forth at the bottom of the main body 10. Through the first connecting portion 224 of the second transmission member 222 being rotatably connected to the first transmission member 221, and the second connecting portion 225 of the second transmission member 222 being rotatably connected to the movable bracket 23, it can be realized that the first transmission member 221 receives a rotation torque, and then the second transmission member 222 converts the rotation torque into a pushing torque to the movable bracket 23. Because the second transmission piece 222 is rotatably connected with the first transmission piece 221 and the movable support 23, the first transmission piece 221, the second transmission piece 222 and the movable support 23 form a crank-link slider mechanism, and no sliding friction loss exists between the second transmission piece 222 and the first transmission piece 221 as well as between the second transmission piece 222 and the movable support 23, which is beneficial to avoiding the blockage or violent shaking of the movable support 23 during reciprocating motion.

The first connecting portion 224 of the second transmission member 222 may be rotatably connected to the first transmission member 221 through a bearing, and the second connecting portion 225 of the second transmission member 222 may be rotatably connected to the movable bracket 23 through a bearing, so as to achieve smooth rotation and reduce rotation friction. Of course, in other embodiments, the bearing structure described above may be eliminated.

Referring to fig. 13, in another embodiment, the at least one transmission member 22 includes a transmission member 101, the transmission member 101 is provided with a first connection portion 102 and a second connection portion 103, the first connection portion 102 is fixedly connected to the driving shaft 211, and the second connection portion 103 is slidably connected to the movable bracket 23. The second connecting portion 103 and the movable bracket 23 are substantially located on the same plane, and the sliding direction of the second connecting portion 103 is perpendicular to the sliding direction of the movable bracket 23. And the second connecting portion 103 and the center of the driving shaft 211 are arranged at intervals in the direction perpendicular to the extending direction of the driving shaft 211, that is, the second connecting portion 103 is arranged to deviate from the rotation center of the transmission member 101. Wherein, the first connecting portion 102 may include a shaft hole structure engaged with the driving shaft 211, and the second connecting portion 103 may include a slider structure engaged with a slide groove on the movable bracket 23.

The driving shaft 211 of the driving device 21 can drive the transmission member 101 to rotate, and the transmission member 101 can push the movable support 23 to perform reciprocating linear motion through the eccentrically arranged second connecting portion 225 during rotation.

Referring to fig. 14, further, the main body 10 is provided with a groove 11 at the bottom, the driving shaft 211 extends into the groove 11, the at least one transmission member 22 is at least partially accommodated in the groove 11, and the movable bracket 23 is disposed to cover the groove 11 of the main body 10 and the at least one transmission member 22. In this embodiment, the at least one transmission member 22 is located at the bottom of the main body 10, and the recess 11 provides a movable space for the at least one transmission member 22, so that the at least one transmission member 22 is prevented from being mounted inside the main body 10 to increase the overall height of the cleaning device 100. The movable bracket 23 covers the recess 11 of the main body 10 and the at least one transmission member 22 to hide the recess 11 of the main body 10 and the at least one transmission member 22, to prevent external dust or hair or large garbage from entering the recess 11 to obstruct the at least one transmission member 22, and to keep the appearance of the cleaning device 100 neat.

Referring to fig. 1 and 15, further, the movable bracket 23 is spaced from the surface 70 to be cleaned, and the distance e between the movable bracket 23 and the surface 70 to be cleaned satisfies a preset distance threshold, so that when the cleaning assembly 30 is detached from the movable bracket 23, the movable bracket 23 can keep a larger distance from the surface 70 to be cleaned, thereby preventing the movable bracket 23 from obstructing the cleaning device 100 from crossing obstacles on the floor, and facilitating to improve the obstacle crossing capability of the cleaning device 100. The specific value of the preset distance threshold may be adjusted by a person skilled in the art according to actual obstacle crossing needs, for example, the preset distance threshold may be 4mm to 8mm, and the preset distance threshold may be 4mm, 4.5mm, 5mm, 5.5mm, or 6 mm.

Referring to fig. 7, 16 and 18, further, the cleaning apparatus 100 further includes a limiting assembly 50, wherein the limiting assembly 50 is connected to the bottom of the main body 10 and limits the movable bracket 23 to a preset position, so that a distance e between the movable bracket 23 and the surface 70 to be cleaned meets a preset distance threshold. Wherein the limiting component 50 does not affect the reciprocating motion of the movable bracket 23 in the direction perpendicular to the driving shaft 211.

In the present embodiment, the limiting assembly 50 includes at least one limiting member 51, and the at least one limiting member 51 is locked to the at least one guide sliding block 12 respectively. Each limiting member 51 is provided with a limiting portion 52 located in the sliding groove 232, and the limiting portion 52 is used for abutting against one side of the movable support 23 away from the main body 10 so as to limit the movable support 23 to be separated from the at least one guide slider 12 and limit the movable support 23 to a preset position, so that the distance between the movable support 23 and the surface 70 to be cleaned meets a preset distance threshold value.

The sliding groove 232 of the movable bracket 23 has a first portion 236 and a second portion 237 communicated with the first portion 236, the first portion 236 and the second portion 237 are both strip-shaped grooves, and the first portion 236 and the second portion 237 both extend along the length direction of the sliding groove 232. The first portion 236 receives the guide block 12 such that the guide block 12 is slidably engaged with the first portion 236 of the chute. The limiting member 51 includes a connecting rod 53 and a limiting portion 52 fixedly connected to the connecting rod 53, and one end of the connecting rod 53 is connected to the guide slider 12 of the body 10. The limiting part 52 is connected to one end of the connecting rod 53 far away from the guide sliding block 12, and the cross-sectional size of the limiting part 52 is larger than that of the connecting rod 53 and larger than that of the guide sliding block. The second portion 237 has a step surface deviating from the bottom of the main body 10, and the position-limiting portion 52 is accommodated in the second portion 237 of the sliding groove 232 and abuts against the step surface to limit the movable bracket 23.

The at least one limiting member 51 limits the movable bracket 23 from separating from the at least one guide slider 12, so that the movable bracket 23 can be prevented from separating from the guide slider 12 and causing abnormal operation. The position-limiting member 51 may be a screw, a rivet, or other position-limiting structural members, which are not limited herein. The number of the limiting members 51 may be determined according to the number of the guide blocks 12, for example, one or more limiting members 51 may be fixed on each of the guide blocks 12. In some embodiments, the at least one limiting member 51 may be fixed on the main body 10 in a non-detachable manner such as glue, so as to prevent the user from detaching the limiting member 51 by himself or prevent the at least one limiting member 51 from loosening due to vibration of the movable bracket 23.

The distance e between the movable support 23 and the surface 70 to be cleaned meets a preset distance threshold, which is beneficial to improving the obstacle crossing capability of the cleaning equipment 100: when the cleaning assembly 30 is detached from the movable support 23, the movable support 23 cannot be close to the ground under the action of gravity due to the action of the limiting assembly 50, and the movable support 23 still keeps a large distance from the surface 70 to be cleaned, so that the movable support 23 is not easy to be stuck on an obstacle when the cleaning device 100 passes over the obstacle; when the cleaning assembly 30 is mounted on the side of the movable bracket 23 close to the surface 70 to be cleaned, the movable bracket 23 can drive the cleaning assembly 30 to reciprocate relative to the surface 70 to be cleaned, so that the floor cleaning task can be performed.

Wherein the preset distance threshold is greater than half of the shortest distance between the bottom of the main body 10 and the surface 70 to be cleaned. In some embodiments, the minimum distance between the bottom surface of the main body 10 and the surface 70 to be cleaned is approximately 10mm, and the preset distance threshold may be greater than 5mm, for example, the preset distance threshold may be 5.1mm, 5.4mm, 5.7mm, 6.0mm, or more. Of course, in other embodiments, the minimum distance between the bottom surface of the main body 10 and the surface 70 to be cleaned may be other values, and the person skilled in the art can set the minimum distance according to actual needs.

In other embodiments, the limiting member 51 may also be a rail structure disposed at the bottom of the main body 10, the movable bracket 23 is slidably engaged with the rail structure, and the rail structure may limit the movable bracket 23, limit the movable bracket 23 from moving toward the bottom of the main body 10, and prevent the movable bracket 23 from sinking to the surface 70 to be cleaned under the action of gravity.

Referring to fig. 15, 17, 19 and 20, further, the first connecting portion 224 and the second connecting portion 225 are sequentially arranged in a direction parallel to the driving shaft 211, one side of the first connecting portion 224 away from the second connecting portion 225 abuts against the first transmission member 221, and one side of the second connecting portion 225 away from the first connecting portion 224 abuts against the movable bracket 23.

In this embodiment, the first connecting portion 224 and the second connecting portion 225 are sequentially arranged in a direction parallel to the driving shaft 211, so that the first connecting portion 224 and the second connecting portion 225 form a vertical stacking structure, and can stably resist the reverse acting force of the movable support 23 from the ground obstacle, so that the movable support 23 is more stable during the reciprocating motion.

In this embodiment, a first shaft hole 231 is formed at a side of the movable bracket 23 close to the bottom of the main body 10, an extending direction of the first shaft hole 231 is parallel to an extending direction of the driving shaft 211, the second connecting portion 225 includes a protruding shaft 227, and the second connecting portion 225 is rotatably engaged with the first shaft hole 231 through the protruding shaft 227. The protruding shaft 227 may be rotatably engaged with the first shaft hole 231 through a bearing, which may be any one of various bearings such as a sliding bearing, a joint bearing, a deep groove ball bearing, or a self-aligning ball bearing. In other embodiments, the protruding shaft 227 is in clearance fit with the first shaft hole 231, and lubricating oil can be added into the clearance between the protruding shaft 227 and the first shaft hole 231 to reduce the rotational friction. In other embodiments, the first shaft hole 231 is disposed on the first connecting portion 224, and the protruding shaft 227 is disposed on the movable bracket 23.

Because the second transmission piece 222 is rotatably connected with the first transmission piece 221 and the movable support 23, the first transmission piece 221, the second transmission piece 222 and the movable support 23 form a crank-link slider mechanism, the assembly precision of the second transmission piece 222 with the first transmission piece 221 and the movable support 23 is high, and the movable support 23 can be stably maintained in the horizontal direction, which is beneficial to avoiding the blockage or violent shaking of the movable support 23 during reciprocating motion; sliding friction loss does not exist between the second transmission piece 222 and the first transmission piece 221 as well as between the second transmission piece and the movable support 23, which is beneficial to avoiding the movable support 23 from being blocked or violently swaying during reciprocating motion.

Referring to fig. 15, 17, 19 and 20, further, the first connecting portion 224 and the first transmission member 221 are at least overlapped in a direction parallel to the extending direction of the driving shaft 211, and the second connecting portion 225 and the movable bracket 23 are at least partially overlapped in a direction parallel to the extending direction of the driving shaft 211.

In this embodiment, the vertical stacking structure of the first connecting portion 224 and the second connecting portion 225 forms a portion of the main body 10 of the second transmission piece 222, and the second transmission piece 222 occupies a certain height dimension in a direction parallel to the extending direction of the driving shaft 211. Since the bottom of the main body 10 needs to keep a small height (usually 9mm to 10mm) with the surface 70 to be cleaned, in order to avoid the insufficient installation space of the movable bracket 23 and the cleaning assembly 30 caused by the excessive space occupied by the second transmission member 222 in the direction parallel to the extending direction of the driving shaft 211, the height of the assembly structure of the first transmission member 221, the second transmission member 222 and the movable bracket 23 in the direction parallel to the driving shaft 211 can be compressed by the at least partially overlapping arrangement of the second connecting portion 225 of the second transmission member 222 and the movable bracket 23 in the direction parallel to the extending direction of the driving shaft 211, and the at least partially overlapping arrangement of the first connecting portion 224 of the second transmission member 222 and the first transmission member 221 in the direction parallel to the extending direction of the driving shaft 211, so as to install the first transmission member 221 and the second transmission member 222 in the narrow space between the movable bracket 23 and the bottom of the main body 10 So that a small moving gap can be maintained between the movable bracket 23 and the bottom of the main body 10.

In the present embodiment, the protruding shaft 227 of the second connecting portion 225 is rotatably fitted in the first shaft hole 231 of the movable bracket 23, so that the second connecting portion 225 and the movable bracket 23 are at least partially overlapped in a direction parallel to the extending direction of the driving shaft 211; the first transmission piece 221 is rotatably engaged with the second shaft hole 228 of the first connection portion 224, so that the first connection portion 224 of the second transmission piece 222 and the first transmission piece 221 are at least partially overlapped in a direction parallel to the extending direction of the driving shaft 211.

It can be seen that the first transmission element 221, the second transmission element 222 and the movable support 23 are sequentially nested in a direction parallel to the extending direction of the driving shaft 211, so that the whole body formed by the three elements has a small height in the direction parallel to the extending direction of the driving shaft 211, the structure is compact, the volume is small, disturbance and impact in the direction perpendicular to the extending direction of the driving shaft 211 can be effectively resisted, the loss is reduced, the service life is prolonged, and the movable support 23 is more stable in reciprocating motion.

Referring to fig. 15, 17, 19 and 20, further, the first connecting portion 224 includes a rotating main body 226, the rotating main body 226 is connected to an end of the protruding shaft 227 departing from the movable bracket 23, a second shaft hole 228 is formed on a surface of the rotating main body 226 departing from the protruding shaft 227, an extending direction of the second shaft hole 228 is parallel to an extending direction of the driving shaft 211, and the first transmission member 221 is at least partially received in the second shaft hole 228 and is rotatably engaged with the second shaft hole 228.

In this embodiment, the first transmission member 221 is a circular wheel, the first transmission member 221 is completely received in the second shaft hole 228, and the first transmission member 221 can be rotatably engaged with the second shaft hole 228 through a bearing, so that the assembly height and the assembly volume of the first transmission member 221 and the second transmission member 222 are minimized, and a high engagement precision is obtained. The first transmission member 221 is provided with an eccentric hole 223 which is in positioning fit with the driving shaft 211, that is, the center of the first transmission member 221 and the axis of the driving shaft 211 are arranged at intervals, and the driving shaft 211 can drive the first connecting portion 224 of the second transmission member 222 to deflect through the first transmission member 221, so as to transmit torque to the second connecting portion 225 of the second transmission member 222, so as to push the movable support 23 to reciprocate.

Referring to fig. 15, 17, 19 and 20, further, an orthographic projection of the first connecting portion 224 on the movable bracket 23 covers an orthographic projection of the second connecting portion 225 on the movable bracket 23, so that the second transmission member 222 has a smaller structural size, which is beneficial to improving the structural compactness. The first connecting portion 224 is substantially circular, the second connecting portion 225 is substantially circular, and the cross-sectional area of the first connecting portion 224 is larger than that of the second connecting portion 225.

Referring to fig. 15, 17, 19 and 20, further, an orthographic projection of the first connecting portion 224 on the bottom of the main body 10 covers an orthographic projection of the first transmission member 221 on the bottom of the main body 10, so that an overall structural size formed by the second transmission member 222 and the first transmission member 221 is small, which is beneficial to improving structural compactness. The first transmission element 221 is substantially circular, and a cross-sectional area of the first transmission element 221 is smaller than a cross-sectional area of the first connection portion 224.

Referring to fig. 15, 17 and 18, further, the second connecting portion 225 is convexly disposed relative to the bottom surface of the main body 10 to support the movable support 23, so that a movable gap is reserved between the movable support 23 and the main body 10, and the movable support 23 can "float" on the bottom of the main body 10, thereby reducing or even eliminating friction resistance and friction noise between the movable support 23 and the main body 10, and facilitating improvement of user experience.

Referring to fig. 15, 17, 18 and 20, further, a movable gap is reserved between the movable support 23 and the main body 10, the cleaning apparatus 100 includes at least one roller 40, the at least one roller 40 is rotatably connected to the movable support 23, a portion of the at least one roller 40 is located in the movable gap and rolls against a side of the main body 10 close to the movable support 23, or the at least one roller 40 is rotatably connected to a bottom of the main body 10, and a portion of the at least one roller 40 is located in the movable gap and rolls against a side of the movable support 23 close to the main body 10.

In this embodiment, a plurality of first roller grooves are formed in the movable bracket 23 at a side close to the bottom of the main body 10, and are linearly arranged at a first predetermined position of the movable bracket 23, and an arrangement direction of the plurality of first roller grooves is perpendicular to a reciprocating direction of the movable bracket 23. The plurality of first roller grooves may include two or more first roller grooves. The at least one roller 40 includes a plurality of first rollers 41, the plurality of first rollers 41 are respectively installed in the plurality of first roller grooves, the plurality of first rollers 41 are rotatably connected to the movable bracket 23, and the plurality of first rollers 41 roll against the bottom surface of the main body 10. The first rollers 41 provide a supporting function for the movable bracket 23 at the first predetermined position, so that the movable bracket 23 can keep a movable gap with the bottom of the main body 10. When the movable bracket 23 reciprocates relative to the bottom of the main body 10, the first rollers 41 can roll along the bottom surface of the main body 10 as the movable bracket 23 moves. In other embodiments, the at least one roller 40 is rotatably coupled to the bottom of the body 10.

In some embodiments, a plurality of second roller grooves are further disposed on a side of the movable bracket 23 close to the bottom of the main body 10, the plurality of second roller grooves are linearly arranged at a second preset position of the movable bracket 23, an arrangement direction of the plurality of second roller grooves is perpendicular to a reciprocating direction of the movable bracket 23, and the second preset position and the first preset position are spaced on the reciprocating direction of the movable bracket 23. The plurality of second roller grooves may include two or more second roller grooves. The at least one roller 40 further includes a plurality of second rollers 42, the plurality of second rollers 42 are rotatably connected to the movable bracket 23, and the plurality of second rollers 42 are rolled against the bottom surface of the main body 10. The second rollers 42 provide a supporting function for the movable bracket 23 at the second predetermined position, so that the movable bracket 23 and the bottom of the main body 10 maintain a uniform movable gap in the front-back direction. When the movable bracket 23 reciprocates relative to the bottom of the main body 10, the plurality of second rollers 42 may roll along the bottom surface of the main body 10 as the movable bracket 23 moves.

Referring to fig. 1, 21 and 22, further, the cleaning assembly 30 and the movable support 23 are at least partially overlapped in a direction perpendicular to the surface 70 to be cleaned.

In this embodiment, the cleaning assembly 30 includes a supporting plate 31 and a flexible cleaning member 32, the supporting plate 31 is detachably connected to the movable support 23, the supporting plate 31 is overlapped on the side of the movable support 23 away from the main body 10, and the flexible cleaning member 32 is detachably connected to the side of the supporting plate 31 away from the movable support 23. The supporting plate 31 is substantially flat, and the supporting plate 31 can be snapped on the movable bracket 23. The supporting plate 31 is provided with two oppositely arranged clamping parts 311, the two clamping parts 311 are respectively jointed with two ends of the movable support 23, the supporting plate 31 can be further provided with an operating part 312 which can be movably arranged, the operating part 312 is connected with the two clamping parts 311, and the clamping or separation of the two clamping parts 311 and the movable support 23 can be realized by operating the operating part 312, so that the cleaning component 30 can be conveniently assembled and disassembled, wherein the operating part 312 can be linked with the two clamping parts 311 through a link mechanism, or the operating part 312 and the clamping parts 311 are integrally arranged; the flexible cleaning elements 32 can be referred to the previous description and will not be described in detail.

In some embodiments, the cleaning assembly 30 may be disposed to completely cover the movable bracket 23, on one hand, the deployment area of the cleaning assembly 30 may be increased, which may provide a large area cleaning effect, and may facilitate to improve the cleaning efficiency; on the other hand, the movable bracket 23 does not need to be in contact with the surface 70 to be cleaned, and rigid collision of the movable bracket 23 with the surface 70 to be cleaned can be avoided, and damage to the movable bracket 23 due to impact can be avoided. Of course, in other embodiments, the cleaning assembly 30 may also be disposed partially covering the movable bracket 23.

In other embodiments, the cleaning assembly 30 includes a flexible cleaning member 32, and the flexible cleaning member 32 can be directly attached to a side of the movable bracket 23 facing away from the main body 10 by a hook-and-loop fastener, a hook, a buckle, or the like.

Further, the thickness of the cleaning assembly 30 is less than or equal to the distance between the movable bracket 23 and the surface 70 to be cleaned, and the cleaning device 100 includes at least one elastic member elastically disposed between the cleaning assembly 30 and the movable bracket 23 or the main body 10 to provide an elastic force of the cleaning assembly 30 against the surface 70 to be cleaned.

In this embodiment, the thickness of the whole body formed by the supporting plate 31 and the flexible cleaning member 32 may be smaller than the distance between the movable bracket 23 and the surface 70 to be cleaned, the flexible cleaning member 32 may be attached to the ground under the gravity of the supporting plate 31, and in order to increase the attachment degree between the flexible cleaning member 32 and the ground, an elastic member may be disposed between the supporting plate 31 and the bottom of the main body 10, or an elastic member may be disposed between the supporting plate 31 and the bottom of the movable bracket 23, and the elastic member may be any one of a snap, a spring, a rubber member, a silicone member, a plastic spring, a metal spring, and the like. In other embodiments, the thickness of the assembly of the blade 31 and the flexible cleaning member 32 may be equal to the distance between the movable support 23 and the surface 70 to be cleaned.

Referring to fig. 1, 21 and 22, a first bottom surface 81 and a second bottom surface 82 adjacent to the first bottom surface 81 are further disposed on one side of the main body 10 close to the surface 70 to be cleaned, a step difference exists between the first bottom surface 81 and the second bottom surface 82, so that a distance between the first bottom surface 81 and the surface 70 to be cleaned is smaller than a distance between the second bottom surface 82 and the surface 70 to be cleaned, the at least one traveling wheel 60 extends out of the first bottom surface 81, and the movable bracket 23 is mounted on the second bottom surface 82.

Since the movable bracket 23 needs to be spaced apart from the surface 70 to be cleaned by a large distance to improve the obstacle crossing ability of the cleaning apparatus 100, the movable bracket 23 needs to be disposed at a large height from the surface 70 to be cleaned, but due to the limitation of the height of the entire apparatus, the shortest distance between the main body 10 and the surface 70 to be cleaned still needs to be maintained within a reasonable range.

In the present embodiment, the main body 10 is provided with two wheel grooves facing each other and a cleaning groove located between the two wheel grooves, which are recessed in the first bottom surface 81. The at least one walking wheel 60 comprises two walking wheels 60 which are oppositely arranged, the two walking wheels 60 are respectively arranged in the two wheel grooves, and each walking wheel 60 partially extends out of the wheel groove. The cleaning groove can be internally provided with a cleaning rolling brush which can be rotatably arranged, the cleaning groove is communicated with the dust collecting cavity, and the garbage on the surface 70 to be cleaned can be lifted by the rotation of the cleaning rolling brush and then is sucked into the dust collecting cavity by vacuum suction. In other embodiments, the cleaning apparatus 100 may not be provided with the cleaning tank and the cleaning roller.

A step difference is provided between the second bottom surface 82 and the first bottom surface 81, the distance between the second bottom surface 82 and the surface 70 to be cleaned is greater than the distance between the first bottom surface 81 and the surface 70 to be cleaned, that is, the second bottom surface 82 forms a sinking region of the bottom surface of the main body 10, so that the movable support 23 is mounted on the second bottom surface 82, the mounting height of the movable support 23 relative to the surface 70 to be cleaned can be increased, and meanwhile, the first bottom surface 81 and the surface 70 to be cleaned still keep a small distance, and the obstacle crossing capability can be improved on the premise of not increasing the overall height of the cleaning device 100. In some embodiments, the distance between the movable bracket 23 and the surface 70 to be cleaned is greater than half of the shortest distance between the bottom of the main body 10 and the surface 70 to be cleaned, that is, the distance between the movable bracket 23 and the surface 70 to be cleaned is greater than half of the shortest distance between the second bottom 82 and the surface 70 to be cleaned, which is described above and will not be repeated herein.

Referring to fig. 1, 21 and 22, further, the at least one traveling wheel 60 includes two traveling wheels 60, the second bottom surface 82 includes a middle area 83 and two opposite recessed areas 84, the two recessed areas 84 are respectively disposed adjacent to the two traveling wheels 60, the middle area 83 is connected between the two recessed areas 84, the movable bracket 23 includes a flat portion 85 and two opposite connecting portions 86, the thickness of the flat portion 85 is smaller than the thickness of the two connecting portions 86, the flat portion 85 is disposed in the middle area 83, the two connecting portions 86 are respectively disposed in the two recessed areas 84, and the cleaning assembly 30 is detachably connected to the two connecting portions 86.

In the present embodiment, the intermediate region 83 and the two recessed regions 84 constitute major surfaces of the second bottom surface 82. The two recessed areas 84 are located on the left and right sides of the cleaning apparatus 100, respectively, and the middle area 83 is connected between the two recessed areas 84. The difference between the partial surface of the second bottom surface 82 corresponding to the recessed area 84 and the first bottom surface 81 is a first difference, and the difference between the partial surface of the second bottom surface 82 corresponding to the middle area 83 and the second bottom surface 82 is a second difference, wherein the first difference is larger than the second difference, so that the distance between the partial surface of the second bottom surface 82 corresponding to the recessed area 84 and the surface 70 to be cleaned is larger, and a larger installation space can be provided.

The flat portion 85 of the movable bracket 23 is movably connected to the middle region 83 of the second bottom surface 82. The flat portion 85 of the movable bracket 23 may be provided with a sliding groove 232 or a sliding guide block 12, and the movable bracket 23 is slidably engaged with the sliding guide block 12 on the middle region 83 through the sliding groove 232, or the movable bracket 23 is slidably engaged with the sliding groove 232 on the middle region 83 through the sliding guide block 12, which may refer to the foregoing description and is not repeated herein.

Compared with the flat portion 85 of the movable bracket 23, the connecting portion 86 of the movable bracket 23 has a larger thickness, which facilitates the arrangement of connecting structures such as a slot or a buckle on the connecting portion 86 of the movable bracket 23. By arranging the two connecting portions 86 in the two recessed areas 84, a small moving gap can be maintained between the movable bracket 23 and the middle area 83 of the second bottom surface 82, so that the movable bracket 23 is kept at a large distance from the surface 70 to be cleaned.

Referring to fig. 1, 21 and 22, further, the movable bracket 23 is provided with a through hole 89, the main body 10 is provided with a fluid distributor 87 corresponding to the movable bracket 23, the fluid distributor 87 is provided with a protrusion 88, the protrusion 88 extends into the through hole 89, and the fluid distributor 87 applies fluid to the cleaning assembly 30 or/and the surface to be cleaned 70 through the protrusion 88.

In this embodiment, the fluid distributor 87 is installed at the bottom of the main body 10, the fluid distributor 87 and the movable bracket 23 are both arranged on the second bottom surface 82, and the movable bracket 23 is arranged to cover the fluid distributor 87, so that the reciprocating motion of the movable bracket 23 is not affected by the position of the fluid distributor 87, which is beneficial to realizing a larger reciprocating motion stroke. The fluid dispenser 87 may be connected to the tank 14 by a conduit, and the peristaltic pump may deliver liquid from the tank 14 to the fluid dispenser 87 for application to the cleaning assembly 30 or/and surface 70 to be cleaned via the fluid dispenser 87.

The above structure is compact, and the area occupied by the bottom of the main body 10 is small, which is advantageous for saving space and realizing miniaturization of the cleaning apparatus 100.

In some embodiments, the fluid distributor 87 is substantially in the shape of a bar, a distribution flow channel is disposed in the fluid distributor 87, the protrusion 88 is disposed on the outer surface of the fluid distributor 87 in a protruding manner, the protrusion 88 is provided with a water outlet hole communicated with the distribution flow channel, and a large volume flow of liquid can be uniformly output through the water outlet holes of the plurality of protrusions 88.

In another embodiment, the fluid distributor 87 includes an input pipe and a plurality of diversion pipes connected to the input pipe, the end of each diversion pipe is provided with the protrusion 88, and the liquid in the input pipe can be diverted to the plurality of diversion pipes and then output outwards through the protrusion 88 of each diversion pipe.

Since the protrusion 88 protrudes into the through hole 89 of the movable bracket 23, so that the distance between the protrusion 88 and the cleaning assembly 30 reaches a small distance, the protrusion 88 may extend to abut against the cleaning assembly 30, or the protrusion 88 and the cleaning assembly may be kept at a small interval. The liquid output by the projection 88 can be applied directly to the cleaning assembly 30.

The number of the protrusions 88 can be two or three or four or more, and can be set according to actual needs. The number of the through holes 89 may be the same as the number of the protrusions 88. Of course, in other embodiments, a single through-hole 89 may simultaneously receive a plurality of protrusions 88.

Referring to fig. 1, 21 and 22, further, the movable bracket 23 is reciprocally movable relative to the main body 10 along a predetermined direction, the through hole 89 extends along a direction parallel to the movable direction of the movable bracket 23, the length of the through hole 89 is greater than or equal to the movable stroke of the movable bracket 23, and the predetermined direction is parallel to the advancing direction of the main body 10. The through hole 89 has a large extending direction, and the interference of the protrusion 88 with the reciprocating motion of the movable bracket 23 can be avoided.

Referring to fig. 1, 21 and 22, further, the movable bracket 23 is provided with a protruding portion 233 beyond the supporting plate 31 in a direction parallel to the surface 70 to be cleaned, and the flexible cleaning member 32 detachably connects the protruding portion 233 and the supporting plate 31, so that the supporting plate 31 is locked with respect to the movable bracket 23.

In this embodiment, the movable bracket 23 is provided with a first side edge 92 adjacent to the two traveling wheels 60, the first side edge 92 is connected between the two connecting portions 86 of the movable bracket 23, and a part of the first side edge 92 is convexly arranged toward the middle position of the two traveling wheels 60 to form the convex portion 233. The protruding direction of the protruding portion 233 is substantially parallel to the reciprocating direction of the movable bracket 23. The tray 31 has a second side edge 93 adjacent the first side edge 92 and a third side edge 94 disposed opposite the second side edge 93. The second side edge 93 extends substantially parallel to the length of the first side edge 92. The supporting plate 31 extends from the second side edge 93 to the third side edge 94, and covers the main body 10 portion of the movable bracket 23. The projections 233 are disposed beyond the second side edge 93 of the blade 31 in a direction parallel to the surface 70 to be cleaned such that the projections 233 are exposed to the outside. The edge portion of the flexible cleaning member 32 may be detachably connected to the protrusion 233 by means of a snap, a hook and loop fastener, a socket, a screw connection, a magnet, or the like; the main body 10 of the flexible cleaning element 32 can be detachably connected to the side of the supporting plate 31 away from the movable bracket 23 by means of a buckle, a hook-and-loop fastener, a socket, a screw connection or a magnet, so that the flexible cleaning member 32 can function to keep the movable bracket 23 and the blade 31 relatively locked, so that the supporting plate 31, the flexible cleaning member 32 and the movable bracket 23 can form a firm whole, under the action of the driving mechanism 80, the movable bracket 23, the supporting plate 31 and the flexible cleaning piece 32 can move synchronously, when the movable bracket 23 drives the cleaning assembly 30 to reciprocate, the supporting plate 31 can be prevented from shaking violently relative to the movable bracket 23, and the cleaning assembly 30 can be prevented from being separated from the movable bracket 23 due to the impact of a ground obstacle.

With continued reference to fig. 7 and 23, in some embodiments, the supporting plate 31 has a connecting surface 95 opposite to the second bottom surface 82, and the connecting surface 95 is disposed protrudingly opposite to the first bottom surface 81, that is, the distance between the connecting surface 95 and the surface 70 to be cleaned is smaller than the distance between the first bottom surface 81 and the surface 70 to be cleaned. The flexible cleaning elements 32 may be attached to the attachment surface 95. The protruding portion 233 further has an obstacle crossing assistant surface 96 connected between the first bottom surface 81 and the connection surface 95, the obstacle crossing assistant surface 96 extends to the first bottom surface 81 in an inclined direction, the obstacle crossing assistant surface 96 may be an inclined surface or a curved surface, and the obstacle crossing assistant surface 96 may guide the cleaning apparatus 100 to smoothly cross over a ground obstacle.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.