阅读说明：本技术 一种自清洁电机 (Self-cleaning motor ) 是由 陈孟敏 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种自清洁电机,涉及到电机领域,包括风扇散热式电机本体、安装于风扇散热式电机本体上的电机轴,所述风扇散热式电机本体的端部内滑动安装有防尘网,所述防尘网的侧部均匀安装有四个移动杆,四个所述移动杆上共同连接有用于使得所述防尘网水平自动复位的限定复位单元,其中一个所述移动杆上连接有安装在所述风扇散热式电机本体内的触发组件,所述触发组件上连接有控制组件。本发明通过滑动安装的防尘网、触发组件、控制组件和限定复位单元的设置,可在防尘网被堵塞时,自动使得清洁组件运行进行清洁,在不堵塞时,自动使得清洁组件停止运行,实现了可根据防尘网的堵塞情况进行自适应运行的目的,实用性好。(The invention discloses a self-cleaning motor, which relates to the field of motors and comprises a fan heat dissipation type motor body and a motor shaft arranged on the fan heat dissipation type motor body, wherein a dust screen is arranged in the end part of the fan heat dissipation type motor body in a sliding mode, four moving rods are uniformly arranged on the side part of the dust screen, a limited reset unit used for enabling the dust screen to be horizontally and automatically reset is commonly connected onto the four moving rods, one of the moving rods is connected with a trigger assembly arranged in the fan heat dissipation type motor body, and the trigger assembly is connected with a control assembly. According to the invention, through the arrangement of the dust screen, the trigger component, the control component and the limited reset unit which are installed in a sliding manner, the cleaning component can be automatically operated to clean when the dust screen is blocked, and can be automatically stopped when the dust screen is not blocked, so that the purpose of self-adaptive operation according to the blocking condition of the dust screen is realized, and the practicability is good.)

1. The utility model provides a self-cleaning motor, includes fan heat dissipation formula motor body (1), installs motor shaft (2) on fan heat dissipation formula motor body (1), its characterized in that: sliding mounting has dust screen (3) in the tip of fan heat dissipation formula motor body (1), four carriage release levers (4), four are evenly installed to the lateral part of dust screen (3) be connected with jointly on carriage release lever (4) and be used for making dust screen (3) level automatic re-setting's injecture reset unit, one of them be connected with on carriage release lever (4) and install trigger component in fan heat dissipation formula motor body (1), the last control assembly that is connected with of trigger component, trigger component is used for starting or closing control assembly, be connected with on dust screen (3) and be used for the cleanness the clean subassembly of dust screen (3), control assembly is used for control motor shaft (2) with connection or disconnection between the clean subassembly.

2. A self-cleaning electric machine as claimed in claim 1, wherein: the trigger assembly comprises a trigger protection box (5) installed on the inner wall of the top of the fan heat dissipation type motor body (1), one end of one moving rod (4) extends into the trigger protection box (5) and is provided with a first conductive block (6), a vertical fixed rod (7) is installed on the inner wall of the top of the fan heat dissipation type motor body (1) positioned in the trigger protection box (5), a second conductive block (8) matched with the first conductive block (6) is sleeved at the bottom end of the vertical fixed rod (7) in a sliding manner, two horizontal fixed rods (9) are installed on the inner wall of the side portion of the trigger protection box (5), a horizontal support block (10) is sleeved at one end of each horizontal fixed rod (9) in a sliding manner, the top of the horizontal support block (10) is in contact with the bottom of the second conductive block (8), and the horizontal support block (10) corresponds to the position of the first conductive block (6), the motor is characterized in that a lifting unit used for driving the second conductive block (8) to move upwards is connected to the second conductive block (8), a reset supporting unit used for driving the horizontal supporting block (10) to reset automatically is connected to the horizontal supporting block (10), the trigger protection box (5) is connected with the control assembly, and the motor shaft (2) is connected with the cleaning assembly through the control assembly.

3. A self-cleaning electric machine as claimed in claim 2, wherein: rise the unit including installing and being located in trigger protection box (5) two fixed plates on fan heat dissipation formula motor body (1) top inner wall, two rotate jointly between the fixed plate and install fixed pulley (12), the lateral part of second conducting block (8) and one of them the top of carriage release lever (4) is installed jointly the cover and is established stay cord (13) on fixed pulley (12).

4. A self-cleaning electric machine as claimed in claim 2, wherein: the reset supporting unit comprises two first springs (11) which are respectively sleeved on the two horizontal fixing rods (9), and two ends of the first springs (11) are respectively installed on the inner wall of the side portion of the trigger protection box (5) and the side portion of the horizontal supporting block (10).

5. A self-cleaning electric machine as claimed in claim 2, wherein: the cleaning assembly comprises a connecting rotating shaft (17) which is rotatably sleeved at the central position of the dustproof net (3), one end of the connecting rotating shaft (17) is connected with the control assembly, the other end of the connecting rotating shaft (17) is provided with a connecting round platform (18), two U-shaped mounting frames (19) are installed on the side part of the connecting round platform (18), two cleaning rotating rods (20) are jointly rotatably installed on the inner wall of one side of the connecting round platform (18) and the inner wall of one side of the two U-shaped mounting frames (19), cleaning rollers (21) which are in contact with the dustproof net (3) are sleeved on the two cleaning rotating rods (20), autorotation units for driving the cleaning rotating rods (20) to autorotation are connected on, and cleaning units for cleaning the cleaning rollers (21) are connected on the two cleaning rollers (21), one end of each of the two cleaning rotating rods (20) extends to the outside of the two U-shaped mounting frames (19) respectively and is connected with a transmission unit used for driving the cleaning unit to run.

6. A self-cleaning electric machine as claimed in claim 5, wherein: control assembly is including installing electric putter (24) bottom trigger protection box (5), electric putter (24) with first conducting block (6) with second conducting block (8) are connected, the output bottom drive of electric putter (24) is connected with U-shaped and removes frame (25), U-shaped removes frame (25) internal rotation and installs connection tooth post (26), motor shaft (2) with drive gear (22) and driven gear (23) are installed respectively to the one end of connecting pivot (17), drive gear (22) with driven gear (23) all with connect tooth post (26) looks adaptation.

7. A self-cleaning electric machine as claimed in claim 5, wherein: the rotation unit comprises a planetary gear (27) sleeved on the cleaning rotating rod (20), annular fixed teeth (28) are arranged at the center of the side part of the dustproof net (3), and the planetary gear (27) is meshed with the annular fixed teeth (28).

8. A self-cleaning electric machine as claimed in claim 5, wherein: the cleaning unit is installed including rotating reciprocal lead screw (29) on U-shaped mounting bracket (19) inner wall, reciprocal lead screw (29) go up the screw thread cup joint install with cleaning brush (30) that cleaning roller (21) contacted, the lateral part of cleaning brush (30) with a side inner wall sliding connection of U-shaped mounting bracket (19), the one end of reciprocal lead screw (29) extends to outside the U-shaped mounting bracket (19) and with the drive unit is connected.

9. A self-cleaning electric motor as claimed in claim 8, wherein: the transmission unit comprises two belt pulleys (31) which are respectively arranged at one end of the cleaning rotating rod (20) and one end of the reciprocating screw rod (29), and a transmission belt (32) is jointly tensioned and sleeved on the belt pulleys (31).

10. A self-cleaning electric machine as claimed in claim 1, wherein: the limiting and resetting unit comprises four limiting blocks (14) which are uniformly installed on the inner wall of the circumferential side of the fan heat dissipation type motor body (1), four moving rods (4) are respectively and slidably arranged at one ends of the four limiting blocks (14), the other three moving rods (4) are respectively provided with a blocking block (15) at one end and four moving rods (4) are respectively sleeved with a second spring (16), and the two ends of the second spring (16) are respectively in contact with the dust screen (3) and the four side portions of the limiting blocks (14).

Technical Field

The invention relates to the field of motors, in particular to a self-cleaning motor.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law; it is mainly used for generating driving torque as a power source of electric appliances or various machines; most of the existing large motors are generally internally provided with fans for dissipating heat inside the motors.

However, after long-time use, a large amount of dust can be attached to and accumulated on the dust screen at the tail end of the motor, so that the ventilation volume is reduced, further the heat dissipation of the motor can be influenced, the service life of the motor is short, even if part of the motor is provided with the self-cleaning function, the motor can always run and automatically clean, the long-time cleaning part is easily abraded, the service life is short, the cleaning can not be automatically stopped when the dust screen is not blocked, the cleaning can be automatically stopped when the dust screen is blocked, the self-adaptive operation can not be carried out according to the blocking condition of the dust screen, and therefore the self-cleaning motor is disclosed in the application to meet the requirements of people.

Disclosure of Invention

The invention aims to provide a self-cleaning motor to solve the problems in the prior art, and the self-cleaning motor can automatically enable a cleaning component to run for cleaning when a dust screen is blocked and automatically enable the cleaning component to stop running when the dust screen is not blocked by arranging the dust screen, the triggering component, the control component and the limiting reset unit which are slidably mounted, thereby realizing the purpose of self-adaptive running according to the blocking condition of the dust screen and having good practicability.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a self-cleaning motor, includes fan heat dissipation formula motor body, installs the motor shaft on fan heat dissipation formula motor body, slidable mounting has the dust screen in the tip of fan heat dissipation formula motor body, four carriage release levers are evenly installed, four to the lateral part of dust screen be connected with jointly on the carriage release lever and be used for making dust screen level automatic re-setting's injecture reset unit, one of them be connected with on the carriage release lever and install this internal trigger assembly of fan heat dissipation formula motor, be connected with control assembly on the trigger assembly, trigger assembly is used for starting or closing control assembly, be connected with on the dust screen and be used for the cleanness the clean subassembly of dust screen, control assembly is used for control the motor shaft with connection or disconnection between the clean subassembly.

Borrow by above-mentioned structure, when the dust screen is blockked up, under the suction effect of fan, the dust screen can be to the inside removal of motor, and then can make trigger component operation through the carriage release lever, trigger component operation can start control assembly operation, thereby can make the motor shaft drive clean subassembly operation clean the dust screen, after clean the completion, under the effect of injecing reset unit, the dust screen can automatic re-setting, and then can be through the carriage release lever, trigger component and control assembly disconnection motor shaft and clean between the subassembly, make clean subassembly stall, realized can carrying out the purpose of self-adaptation operation according to the jam condition of dust screen, the practicality is good.

Preferably, the trigger assembly comprises a trigger protection box installed on the inner wall of the top of the fan heat dissipation type motor body, one end of one moving rod extends into the trigger protection box and is provided with a first conductive block, a vertical fixed rod is installed on the inner wall of the top of the fan heat dissipation type motor body in the trigger protection box, a second conductive block matched with the first conductive block is sleeved at the bottom end of the vertical fixed rod in a sliding manner, two horizontal fixed rods are installed on the inner wall of the side portion of the trigger protection box, a horizontal support block is sleeved at one end of each of the two horizontal fixed rods in a sliding manner, the top of the horizontal support block is in contact with the bottom of the second conductive block, the horizontal support block corresponds to the first conductive block in position, and a lifting unit used for driving the second conductive block to move upwards is connected onto the second conductive block, the motor protection device comprises a horizontal supporting block, a trigger protection box and a cleaning assembly, wherein the horizontal supporting block is connected with a reset supporting unit used for driving the horizontal supporting block to reset automatically, the trigger protection box is connected with the control assembly, and a motor shaft is connected with the cleaning assembly through the control assembly.

Further, through the setting of trigger subassembly, when the dust screen is blockked up the inward movement, can drive first conducting block through the carriage release lever and remove and extrude horizontal spacer, until making horizontal spacer keep away from the second conducting block, the second conducting block can drop downwards and contact with first conducting block this moment, and then can start control assembly and make the motor shaft drive clean subassembly operation clean the dust screen, when the dust screen does not block up outside the removal, first conducting block can break away from mutually with the second conducting block, thereby can close the connection between control assembly disconnection motor shaft and the clean subassembly, realize the clear purpose of automatic stop.

Preferably, the lifting unit comprises two fixing plates arranged on the inner wall of the top of the fan heat dissipation type motor body and located in the trigger protection box, a fixed pulley is installed between the two fixing plates in a rotating mode, a pull rope is installed on the fixed pulley in a sleeved mode on the side portion of the second conductive block and one of the fixing plates, and the top of the moving rod is provided with the pull rope in a sleeved mode.

Further, through the setting that rises the unit, when the dust screen outwards removed to the certain distance, can pass through the carriage release lever pulling stay cord, this moment under the effect of fixed pulley, can make the second conducting block rebound, and then the horizontal spacer automatic re-setting that can be convenient for supports the second conducting block.

Preferably, the reset supporting unit comprises two first springs which are respectively sleeved on the two horizontal fixing rods, and two ends of each first spring are respectively installed on the inner wall of the side part of the trigger protection box and the side part of the horizontal supporting block.

Furthermore, through the arrangement of the reset supporting unit, when the second conductive block moves upwards and is separated from the horizontal supporting block, the horizontal supporting block can be driven to automatically reset under the action of the elastic force of the first spring until the second conductive block moves to the lower part of the second conductive block, and the purpose of automatic supporting is achieved.

Preferably, the cleaning assembly comprises a connecting rotating shaft which is rotatably sleeved at the central position of the dust screen, one end of the connecting rotating shaft is connected with the control component, the other end of the connecting rotating shaft is provided with a connecting round table, connect the lateral part of round platform and install two U-shaped mounting brackets, connect the week side and two of round platform rotate jointly on one side inner wall of U-shaped mounting bracket and install two clean bull sticks, two all cup joint on the clean bull stick install with the clean cylinder that the dust screen contacted, two all be connected with on the clean bull stick and be used for the drive the rotation unit of clean bull stick rotation, two all be connected with on the clean cylinder and be used for the clearance the cleaning unit of clean cylinder, two the one end of clean bull stick extends to two respectively the U-shaped mounting bracket is outer and all be connected with and is used for the drive the transmission unit of cleaning unit operation.

Further, through the setting of clean subassembly, when connecting the pivot and rotate, can drive clean bull stick circular motion through connecting round platform and U-shaped mounting bracket, and then can drive clean cylinder circular motion, realize carrying out clear purpose to the dust screen.

Preferably, the control assembly is including installing the electric putter who triggers protection box bottom, electric putter with first conducting block with the second conducting block is connected, electric putter's output bottom drive is connected with the U-shaped and removes the frame, the U-shaped removes the frame internal rotation and installs and connect the tooth post, the motor shaft with drive gear and driven gear are installed respectively to the one end of connecting the pivot, drive gear with driven gear all with connect tooth post looks adaptation.

Further, through control assembly's setting, when starting electric putter, can drive the U-shaped and remove the frame and connect the tooth post downstream, until meshing simultaneously with drive gear and driven gear, motor shaft accessible drive gear this moment, connect the tooth post, driven gear drives the connection pivot and rotates, make clean subassembly operation, when closing electric putter, can drive and connect tooth post rebound, break away from mutually with drive gear and driven gear, make the motor shaft can't drive and connect the pivot and rotate, clean subassembly can the bring to rest, the purpose of the clean subassembly operation of control has been realized.

Preferably, the rotation unit comprises a planetary gear sleeved on the cleaning rotating rod, an annular fixed tooth is arranged at the center of the side part of the dustproof net, and the planetary gear is meshed with the annular fixed tooth.

Further, through the setting of rotation unit, when clean bull stick circular migration, also can drive planetary gear circular migration, under the effect of the solid tooth of annular, planetary gear can take place the rotation, and then can make the cleaning roller rotate at the circumference and carry out clear in-process also can the rotation, and clean effect is better.

Preferably, the clearance unit is installed including rotating reciprocal lead screw on the U-shaped mounting bracket inner wall, reciprocal lead screw go up the screw thread cup joint install with the clearance brush that cleaning roller contacted, the lateral part of clearance brush with one side inner wall sliding connection of U-shaped mounting bracket, the one end of reciprocal lead screw extends to outside the U-shaped mounting bracket and with the drive unit is connected.

Further, through the setting of cleaning unit, when reciprocal lead screw rotated, can drive the reciprocating motion that makes a round trip of clearance brush, and then can carry out automatic clearance to the surface of cleaning roller, guaranteed cleaning roller's clearance effect.

Preferably, the transmission unit comprises two belt pulleys respectively arranged at one end of the cleaning rotating rod and one end of the reciprocating screw rod, and a transmission belt is jointly tensioned and sleeved on the two belt pulleys.

Further, through the setting of transmission unit, when clean bull stick rotated, can drive reciprocal lead screw through belt pulley and driving belt and rotate, realized cleaning unit's synchronous operation, the continuity is better.

Preferably, the limiting and resetting unit comprises four limiting blocks uniformly arranged on the inner wall of the circumferential side of the fan heat dissipation type motor body, four moving rods are arranged, one ends of the moving rods respectively penetrate through the four limiting blocks in a sliding mode, blocking blocks are arranged at the other three ends of the moving rods, a second spring is sleeved on each moving rod, and the two ends of each second spring are respectively in contact with the dust screen and the side portions of the limiting blocks.

Furthermore, through the setting of injecing the reset unit, can make the dust screen can only the horizontal direction remove, play and injecing the guide effect, and when the dust screen was not blockked up, under the elastic force effect of second spring, can drive the outside removal of dust screen automatic re-setting, and then accessible carriage release lever, trigger subassembly and control assembly make clean subassembly stop operation.

In conclusion, the technical effects and advantages of the invention are as follows:

1. the cleaning device is reasonable in structure, when the dust screen is blocked, the dust screen can move towards the inside of the motor under the action of suction force of the fan, the trigger assembly can be driven to operate through the moving rod, the control assembly can be started to operate when the trigger assembly operates, so that the motor shaft can drive the cleaning assembly to operate to clean the dust screen, after cleaning is completed, the dust screen can automatically reset under the action of the limited reset unit, and further the connection between the motor shaft and the cleaning assembly can be disconnected through the moving rod, the trigger assembly and the control assembly, so that the cleaning assembly stops operating, the purpose of self-adaptive operation according to the blocking condition of the dust screen is achieved, and the practicability is good;

2. in the invention, when the dust screen is blocked and moves inwards by the suction force of the fan, the first conductive block is driven to move by the moving rod, and the horizontal supporting block is pressed to be far away from the second conductive block, the second conductive block can fall down to be contacted with the first conductive block, and then the electric push rod can be started to make the connecting tooth column move downwards to be meshed with the driving gear and the driven gear, at the moment, the motor shaft can drive the connecting rotating shaft to rotate to make the cleaning component run, so as to realize automatic cleaning, when the dust screen is in a non-blocking state, under the action of the elastic force of the second spring, the dust screen is driven to automatically reset and move outwards, so that the first conductive block is driven to move and separate from the second conductive block, therefore, the electric push rod can be closed, so that the connecting tooth column moves upwards to be separated from the driving gear and the driven gear, the motor shaft cannot drive the connecting rotating shaft to rotate, and the aim of automatically stopping cleaning is fulfilled;

3. according to the invention, when the connecting rotating shaft rotates, the connecting round table and the U-shaped mounting rack drive the cleaning rotating rod to move circumferentially, so that the cleaning roller can be driven to move circumferentially, the purpose of cleaning the dust screen is realized, meanwhile, the cleaning rotating rod can drive the planetary gear to move circumferentially, the planetary gear can rotate under the action of the annular fixed teeth, and the cleaning roller can also rotate in the cleaning process through circumferential rotation, so that the cleaning effect is better;

4. in the cleaning process, the rotation of the cleaning rotating rod can also drive the reciprocating screw rod to rotate through the belt pulley and the transmission belt, the reciprocating screw rod rotates to drive the cleaning brush to reciprocate back and forth, and further the surface of the cleaning roller can be automatically cleaned, so that the cleaning effect of the cleaning roller is ensured, and the service life of the cleaning roller is prolonged;

5. in the invention, in the process of automatically resetting and moving the dust screen outwards, the stay cord is pulled through the moving rod, at the moment, the second conductive block can move upwards under the action of the fixed pulley, and when the second conductive block moves upwards and is separated from the horizontal support block, the horizontal support block can be driven to automatically reset under the action of the elastic force of the first spring to realize the purpose of supporting the second conductive block, so that the next trigger cleaning can be conveniently carried out.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a partially enlarged view of FIG. 1;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of a partial cut-away structure of an embodiment of the present application;

FIG. 5 is a partially enlarged view of FIG. 4;

FIG. 6 is a schematic view of a partially cut-away structure at another location in an embodiment of the present application;

FIG. 7 is a sectional structure diagram of the trigger protection box in the embodiment of the application;

fig. 8 is a schematic top view of the present application.

In the figure: 1. a fan heat dissipation type motor body; 2. a motor shaft; 3. a dust screen; 4. a travel bar; 5. triggering a protection box; 6. a first conductive block; 7. vertically fixing the rod; 8. a second conductive block; 9. horizontally fixing the rod; 10. a horizontal bracing block; 11. a first spring; 12. a fixed pulley; 13. pulling a rope; 14. a limiting block; 15. a blocking block; 16. a second spring; 17. connecting the rotating shaft; 18. a circular truncated cone is connected; 19. a U-shaped mounting bracket; 20. cleaning the rotating rod; 21. cleaning the roller; 22. a drive gear; 23. a driven gear; 24. an electric push rod; 25. a U-shaped movable frame; 26. connecting the toothed columns; 27. a planetary gear; 28. fixing teeth in an annular mode; 29. a reciprocating screw rod; 30. cleaning the brush; 31. a belt pulley; 32. a drive belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Example (b): referring to fig. 1 to 8, the self-cleaning motor includes a fan-type heat dissipation motor body 1, and a motor shaft 2 mounted on the fan-type heat dissipation motor body 1, where the fan-type heat dissipation motor body 1 may be any one of motors mounted with a heat dissipation fan in the prior art.

The dust screen 3 is slidably mounted in the end of the fan heat dissipation type motor body 1, and the dust screen 3 can be any small-hole metal mesh in the prior art.

Four movable rods 4 are uniformly installed on the side portion of the dust screen 3, and the movable rods 4 can be any insulating plastic rod in the prior art and can be fixed with the side portion of the dust screen 3 in a threaded connection mode.

Be connected with the limited reset unit who is used for making dust screen 3 level automatic re-setting jointly on four carriage release levers 4, be connected with the trigger assembly who installs in fan heat dissipation formula motor body 1 on one of them carriage release lever 4, be connected with control assembly on the trigger assembly, trigger assembly is used for starting or closing control assembly, is connected with the clean subassembly that is used for clean dust screen 3 on the dust screen 3, and control assembly is used for being connected or the disconnection between control motor shaft 2 and the clean subassembly.

Borrow by above-mentioned structure, when dust screen 3 is blockked up, under the suction effect of fan, dust screen 3 can be to the inside removal of motor, and then can make trigger component operation through carriage release lever 4, trigger component operation can start control assembly operation, thereby can make motor shaft 2 drive clean subassembly operation clean dust screen 3, after the cleanness is accomplished, under the effect of injecing the reset unit, dust screen 3 can automatic re-setting, and then can be through carriage release lever 4, trigger component and control assembly disconnection motor shaft 2 and clean between the subassembly, make clean subassembly stall, realized can carrying out the purpose of self-adaptation operation according to the jam condition of dust screen 3, the practicality is good.

As a preferred embodiment of this embodiment, referring to fig. 4 and 7, the trigger assembly includes a trigger protection box 5 mounted on the top inner wall of the fan heat dissipation type motor body 1, and the trigger protection box 5 and the top inner wall of the fan heat dissipation type motor body 1 can be fixed by gluing; one end of one moving rod 4 extends into the trigger protection box 5 and is provided with a first conductive block 6, the inner wall of the top part of the fan heat dissipation type motor body 1 positioned in the trigger protection box 5 is provided with a vertical fixed rod 7, the bottom end of the vertical fixed rod 7 is sleeved with a second conductive block 8 matched with the first conductive block 6 in a sliding manner, the inner wall of the side part of the trigger protection box 5 is provided with two horizontal fixed rods 9, one end of each horizontal fixed rod 9 is sleeved with a horizontal supporting block 10 in a common sliding manner, the top part of each horizontal supporting block 10 is contacted with the bottom part of the second conductive block 8, the horizontal supporting block 10 is corresponding to the first conductive block 6 in position, the second conductive block 8 is connected with a lifting unit for driving the second conductive block 8 to move upwards, the horizontal supporting block 10 is connected with a reset supporting unit for driving the horizontal supporting block 10 to reset, the trigger protection box 5 is connected with a control assembly, the motor shaft 2 is connected with the cleaning assembly through the control assembly.

When the dust screen 3 is blocked up and is inwards moved by the suction of the fan, the first conductive block 6 can be driven to move through the moving rod 4, the second conductive block 8 is kept away from until the horizontal supporting block 10 is extruded, the second conductive block 8 can drop downwards to contact with the first conductive block 6 at the moment, and then the control assembly can be started to enable the motor shaft 2 to drive the cleaning assembly to operate to clean the dust screen 3, when the dust screen 3 is not blocked and outwards moved, the first conductive block 6 can be separated from the second conductive block 8, so that the control assembly can be closed to disconnect the connection between the motor shaft 2 and the cleaning assembly, and the purpose of automatically stopping cleaning is achieved.

In this embodiment, referring to fig. 7, the lifting unit includes two fixing plates mounted on the inner wall of the top of the fan-cooling motor body 1 inside the trigger protection box 5, a fixed pulley 12 is mounted between the two fixing plates in a co-rotating manner, and a pull rope 13 sleeved on the fixed pulley 12 is mounted on the side of the second conductive block 8 and the top of one of the moving rods 4 in a co-rotating manner.

When the dust screen 3 outwards moves to a certain distance, the pull rope 13 is pulled through the moving rod 4, at the moment, under the action of the fixed pulley 12, the second conductive block 8 can move upwards, and further, the horizontal support block 10 can be conveniently reset automatically to support the second conductive block 8.

In this embodiment, referring to fig. 7, the reset supporting unit includes two first springs 11 respectively sleeved on the two horizontal fixing rods 9, and the first springs 11 may be any metal spring in the prior art; two ends of the two first springs 11 are respectively installed on the inner wall of the side portion of the trigger protection box 5 and the side portion of the horizontal supporting block 10.

When the second conductive block 8 moves upwards to be separated from the horizontal supporting block 10, the horizontal supporting block 10 is driven to automatically reset under the action of the elastic force of the first spring 11 until the second conductive block 8 moves to the lower part, and the purpose of automatic supporting is achieved.

In this embodiment, referring to fig. 1 to 4, the cleaning assembly includes a connecting rotating shaft 17 rotatably sleeved at a central position of the dust screen 3, one end of the connecting rotating shaft 17 is connected with the control assembly, the other end of the connecting rotating shaft 17 is provided with a connecting circular truncated cone 18, two U-shaped mounting brackets 19 are mounted at a side portion of the connecting circular truncated cone 18, two cleaning rotating rods 20 are rotatably mounted on the circumferential side of the connecting circular truncated cone 18 and the inner wall of one side of the two U-shaped mounting brackets 19, cleaning rollers 21 in contact with the dust screen 3 are sleeved on the two cleaning rotating rods 20, and the cleaning rollers 21 can be fixedly sleeved on the cleaning rotating rods 20 by a screw connection manner; all be connected with the rotation unit that is used for driving clean bull stick 20 rotation on two clean bull sticks 20, all be connected with the cleaning unit that is used for clearing up clean cylinder 21 on two clean cylinders 21, the one end of two clean bull sticks 20 extends to two U-shaped mounting brackets 19 respectively outside and all is connected with the drive unit that is used for driving the cleaning unit operation.

When the connecting rotating shaft 17 rotates, the cleaning rotating rod 20 is driven to move circumferentially through the connecting circular truncated cone 18 and the U-shaped mounting rack 19, and then the cleaning roller 21 is driven to move circumferentially, so that the purpose of cleaning the dust screen 3 is achieved.

In this embodiment, referring to fig. 4 and 5, the control assembly includes an electric push rod 24 installed at the bottom of the trigger protection box 5, the electric push rod 24 is connected to the first conductive block 6 and the second conductive block 8, the bottom end of the output end of the electric push rod 24 is connected to a U-shaped moving frame 25 in a driving manner, the electric push rod 24 may be any one of electric telescopic push rods in the prior art, and the output end of the electric push rod may be fixedly installed with the U-shaped moving frame 25 by welding; the U-shaped moving frame 25 is internally and rotatably provided with a connecting tooth column 26, one end of the motor shaft 2 and one end of the connecting rotating shaft 17 are respectively provided with a driving gear 22 and a driven gear 23, and the driving gear 22 and the driven gear 23 are matched with the connecting tooth column 26.

When starting electric putter 24, can drive U-shaped removal frame 25 and connect the tooth post 26 downstream, until meshing with drive gear 22 and driven gear 23 simultaneously, motor shaft 2 accessible drive gear 22 this moment, connect tooth post 26, driven gear 23 drives and connects pivot 17 and rotate, make clean subassembly operation, when closing electric putter 24, can drive and connect tooth post 26 and upwards remove, break away from mutually with drive gear 22 and driven gear 23, make motor shaft 2 can't drive and connect pivot 17 and rotate, clean subassembly can the stall, the purpose of the clean subassembly operation of control has been realized.

In this embodiment, referring to fig. 3, the rotation unit includes a planetary gear 27 sleeved on the cleaning rotating rod 20, an annular fixed tooth 28 is installed at a central position of a side portion of the dust screen 3, and the annular fixed tooth 28 may be any one of circular metal racks in the prior art, and is welded and fixed with the central position of the side portion of the dust screen 3; the planet gears 27 mesh with annular fixed teeth 28. The advantage of setting up like this is, when cleaning bull stick 20 circular motion, also can drive planetary gear 27 circular motion, under the effect of annular fixed tooth 28, planetary gear 27 can take place the rotation, and then can make cleaning roller 21 also can the rotation at the in-process that the circular motion carries out the cleanness, and cleaning performance is better.

In this embodiment, referring to fig. 2, the cleaning unit includes a reciprocating screw 29 rotatably mounted on the inner wall of the U-shaped mounting frame 19, a cleaning brush 30 contacting with the cleaning roller 21 is threadedly mounted on the reciprocating screw 29, and the cleaning brush 30 may be any one of prior art brush structures, such as a plastic brush; the side part of the cleaning brush 30 is connected with the inner wall of one side of the U-shaped mounting rack 19 in a sliding way, and one end of the reciprocating screw rod 29 extends out of the U-shaped mounting rack 19 and is connected with the transmission unit.

When the reciprocating screw 29 rotates, the cleaning brush 30 is driven to reciprocate back and forth, so that the surface of the cleaning roller 21 can be automatically cleaned, and the cleaning effect of the cleaning roller 21 is ensured.

In the embodiment, referring to fig. 2, the transmission unit includes two belt pulleys 31 respectively mounted at one end of the cleaning rotating rod 20 and one end of the reciprocating screw 29, the belt pulley 31 may be any one of metal belt pulleys in the prior art, and the belt pulleys and one end of the cleaning rotating rod 20 and one end of the reciprocating screw 29 may be fixed in a threaded manner; a transmission belt 32 is mounted on the two pulleys 31 in a tensioning and sleeving manner.

When the cleaning rotating rod 20 rotates, the reciprocating screw 29 is driven to rotate by the belt pulley 31 and the transmission belt 32, so that the synchronous operation of the cleaning units is realized, and the continuity is better.

As a preferred embodiment of this embodiment, referring to fig. 6, the limiting reset unit includes four limiting blocks 14 uniformly installed on the inner wall of the circumferential side of the fan heat dissipation type motor body 1, and the limiting blocks 14 may be any metal block in the prior art, and are welded and fixed with the inner wall of the circumferential side of the fan heat dissipation type motor body 1; one end of each of the four moving rods 4 respectively penetrates through the four limiting blocks 14 in a sliding mode, one end of each of the other three moving rods 4 is provided with a blocking block 15, the four moving rods 4 are sleeved with second springs 16, and two ends of each of the four second springs 16 are respectively in contact with the dust screen 3 and the side portions of the four limiting blocks 14.

Can make dust screen 3 can only the horizontal direction remove, play the effect of injecing the direction, and when dust screen 3 was not blockked up, under the spring action of second spring 16, can drive dust screen 3 automatic re-setting outwards removed, and then accessible carriage release lever 4, trigger subassembly and control assembly make cleaning assembly stop operation.

The working principle of the invention is as follows:

when the dust screen 3 is blocked up, can inwards move under the effect of fan suction, can drive first conducting block 6 through the carriage release lever 4 and remove and extrude horizontal spacer 10, until making horizontal spacer 10 keep away from second conducting block 8, second conducting block 8 can drop downwards and contact with first conducting block 6 this moment, and then can start electric putter 24, electric putter 24 operation can drive U-shaped removal frame 25 and connect the tooth post 26 and move downwards, mesh simultaneously with drive gear 22 and driven gear 23, motor shaft 2 can drive connection pivot 17 and rotate this moment, it can drive clean bull stick 20 circular motion through connecting round platform 18 and U-shaped mounting bracket 19 to connect pivot 17 rotation, and then can drive clean cylinder 21 circular motion, realize carrying out clear purpose to dust screen 3.

When the cleaning rotating rod 20 moves circumferentially, the planetary gear 27 is also driven to move circumferentially, and under the action of the annular fixed teeth 28, the planetary gear 27 can rotate, so that the cleaning roller 21 can rotate in the cleaning process during circumferential rotation, and the cleaning effect is better.

Meanwhile, when the cleaning rotating rod 20 rotates, the belt pulley 31 and the transmission belt 32 drive the reciprocating screw rod 29 to rotate, the reciprocating screw rod 29 rotates to drive the cleaning brush 30 to reciprocate, the surface of the cleaning roller 21 can be automatically cleaned, and the cleaning effect of the cleaning roller 21 is ensured.

After the cleaning is finished, the dust screen 3 is in a non-blocking state, at the moment, under the action of the elastic force of the second spring 16, the dust screen 3 can be driven to automatically reset and move outwards, and then the first conductive block 6 can be driven to move and be separated from the second conductive block 8, so that the electric push rod 24 can be closed, the connecting tooth column 26 can move upwards and be separated from the driving gear 22 and the driven gear 23, the motor shaft 2 can not drive the connecting rotating shaft 17 to rotate, and the purpose of automatic stop cleaning is achieved.

At the in-process that the dust screen 3 automatic re-setting outwards removed, can pass through the 4 pulling stay cords 13 of carriage release lever, this moment under the effect of fixed pulley 12, can make second conducting block 8 upwards remove, when second conducting block 8 upwards removes and horizontal kicking block 10 breaks away from mutually, under the spring action of first spring 11, can drive horizontal kicking block 10 automatic re-setting and realize the purpose that supports second conducting block 8, be convenient for carry on the next trigger clean.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.