阅读说明：本技术 移动式吸尘器及研磨吸尘装置 (Movable dust collector and grinding dust collection device ) 是由 周献华 张坤 孙杰 于 2020-04-27 设计创作，主要内容包括：本申请提供一种移动式吸尘器,包括主体、支撑架以及调节装置,支撑架包括对接部和固定支架,对接部设于固定支架,固定支架连接于主体,调节装置传动连接于主体并与对接部相对设置以调节对接部的对地高度。本申请提供的移动式吸尘器通过设置对接部用于与其它的装置的对接结构进行对接安装,当对接部与其它的装置的对接结构不在同一高度时,可以通过调节装置调节对接部的对地高度以使对接部与该对接结构保持同一高度,进而实现两者的精准对接。此外,本申请还提供一种研磨吸尘装置。(The application provides a portable dust catcher, including main part, support frame and adjusting device, the support frame includes butt joint portion and fixed bolster, and the fixed bolster is located to butt joint portion, and fixed bolster connects in the main part, and the adjusting device transmission is connected in the main part and sets up the height to ground in order to adjust butt joint portion relatively with butt joint portion. The application provides a portable dust catcher is used for carrying out the butt joint installation with the butt joint structure of other devices through setting up butt joint portion, and when butt joint portion and the butt joint structure of other devices are not at same height, can adjust butt joint portion's height to the ground so that butt joint portion and this butt joint structure keep same height through adjusting device, and then realize accurate butt joint between them. In addition, this application still provides a grinding dust extraction.)

1. A mobile vacuum cleaner, comprising:

a main body;

the supporting frame comprises a butt joint part and a fixed bracket, the butt joint part is arranged on the fixed bracket, and the fixed bracket is connected to the main body; and

the adjusting device is in transmission connection with the main body and is arranged opposite to the butt joint part so as to adjust the ground height of the butt joint part.

2. The mobile vacuum cleaner of claim 1, wherein the adjusting device comprises a telescopic mechanism and a rotating bracket, the rotating bracket is rotatably connected to the fixed bracket, the telescopic mechanism is disposed above the docking portion, one end of the telescopic mechanism is connected to the fixed bracket, and the other end of the telescopic mechanism is in transmission connection with the rotating bracket to change the ground tilt angle of the fixed bracket.

3. The mobile vacuum cleaner of claim 2, wherein the telescoping mechanism comprises a cylinder disposed on the main body and a telescoping rod telescopically disposed on the cylinder and drivingly connected to the rotating bracket.

4. The mobile vacuum cleaner of claim 3, wherein the cylinder body is fixedly or hingedly coupled to the main body, and the telescopic bar is hingedly coupled to the rotating bracket.

5. The mobile vacuum cleaner of claim 2, wherein the main body comprises a mounting bracket, the main body has a height direction, the mounting bracket and the fixed bracket are spaced apart along the height direction, the rotating bracket and the mounting bracket are spaced apart from each other, and the docking portion has a docking hole formed therein at an end of the fixed bracket facing the rotating bracket.

6. The mobile vacuum cleaner of claim 5, wherein the docking portion comprises a first securing portion, a second securing portion, and a bracket body, the bracket body comprises a side surface, the first securing portion and the second securing portion are spaced apart from each other and are connected to the side surface, the docking hole comprises a first hole and a second hole, the first hole is disposed in the first securing portion, the second hole is disposed in the second securing portion, and the first hole and the second hole are coaxial.

7. The mobile vacuum cleaner of claim 2, comprising a first wheel rotatably disposed on the rotating bracket and a second wheel rotatably disposed on the stationary bracket, wherein the center of mass of the mobile vacuum cleaner is located between the first wheel and the second wheel, and wherein the docking portion is located between the first wheel and the second wheel.

8. An abrasive dust extraction apparatus including a grinding machine, wherein the grinding machine is removably attachable to a mobile dust collector as claimed in any one of claims 1 to 7.

9. The abrasive dust extraction of claim 8, wherein said abrasive machine includes a base and an extension attached to said base and positioned toward said interface, said extension having an attachment aperture for removably attaching to said interface.

10. The apparatus of claim 8, wherein the grinder comprises a first rotating wheel and a second rotating wheel having an equal outer diameter and being coaxially disposed, wherein the top of the first rotating wheel and the top of the second rotating wheel are both located at a first tangent plane, wherein the bottom of the first rotating wheel and the bottom of the second rotating wheel are both located at a second tangent plane parallel to and spaced apart from the first tangent plane, and wherein the first rotating wheel of the mobile vacuum cleaner is located between the first tangent plane and the second tangent plane or above the first tangent plane after the mobile vacuum cleaner is docked with the grinder.

Technical Field

The application relates to the technical field of construction machines, in particular to a movable dust collector and a grinding dust collection device.

Background

The terrace grinds machine is the automation equipment that is used for muddy earth ground to polish or grind, can cause a large amount of dusts at the terrace grinding in-process, therefore, need to adopt powerful portable dust catcher to carry out the dust absorption usually in grinding the in-process, portable dust catcher can be connected as an organic whole with the terrace grinds machine, the terrace grinds the in-process of grinding, portable dust catcher can follow the terrace and grind the machine and move together in order to carry out the dust absorption, portable dust catcher and terrace grind the machine in the installation, because reasons such as ground unevenness lead to the high nonconformity at installation position place between them easily, can't realize the butt joint.

Disclosure of Invention

The embodiment of the application provides a movable dust collector and a grinding dust collection device, and aims to solve the problems.

The embodiment of the application realizes the aim through the following technical scheme.

In a first aspect, an embodiment of the present application provides a mobile vacuum cleaner, which includes a main body, a support frame and an adjusting device, wherein the support frame includes a butt joint portion and a fixing bracket, the butt joint portion is disposed on the fixing bracket, the fixing bracket is connected to the main body, and the adjusting device is in transmission connection with the main body and is disposed opposite to the butt joint portion so as to adjust the ground height of the butt joint portion.

In a second aspect, embodiments of the present application also provide an apparatus for abrasive cleaning, comprising a grinder removably coupled to the mobile vacuum cleaner of the first aspect.

Compared with the prior art, the mobile dust collector provided by the application is used for being in butt joint with the butt joint structure of other devices by arranging the butt joint part, and when the butt joint part is not at the same height as the butt joint structure of other devices, the ground height of the butt joint part can be adjusted by the adjusting device to enable the butt joint part to keep the same height as the butt joint structure, so that the accurate butt joint of the butt joint part and the butt joint structure is realized. In addition, the grinding machine among the grinding dust extraction that this application provided can be connected with portable dust catcher detachably, the dismouting between the two of being convenient for, simultaneously, adjusting device can adjust butt joint portion to the same height with portable dust catcher's butt joint structure.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a mobile vacuum cleaner according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a mounting bracket of a mobile vacuum cleaner according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural view of a stationary bracket of a mobile vacuum cleaner according to an embodiment of the present disclosure.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Fig. 5 is a partial schematic structural view of a mobile vacuum cleaner in a first state according to an embodiment of the present disclosure.

Fig. 6 is a partial schematic structural view of a mobile vacuum cleaner in a first state according to an embodiment of the present disclosure.

Fig. 7 is a schematic structural diagram of an abrasive dust collector provided in an embodiment of the present application in a first viewing angle (front view).

Fig. 8 is a partial enlarged view at B in fig. 7.

Fig. 9 is a schematic structural view of an abrasive dust collector provided in the embodiment of the present application from a second perspective (an elevation view).

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.

Referring to fig. 1 and 2, an embodiment of the present disclosure provides a mobile vacuum cleaner 100, which includes a main body 110, a supporting frame 120, and an adjusting device 130, wherein the supporting frame 120 includes an abutting portion 121 and a fixing bracket 122, the abutting portion 121 is disposed on the fixing bracket 122, the fixing bracket 122 is connected to the main body 110, and the adjusting device 130 is drivingly connected to the main body 110 and disposed opposite to the abutting portion 121 to adjust a height of the abutting portion 121 with respect to the ground.

The mobile vacuum cleaner 100 provided by the present application is provided with the docking portion 121 for docking with a docking structure of another device, and when the docking portion 121 is not at the same height as the docking structure of the other device, the adjusting device 130 can adjust the ground height of the docking portion 121 to keep the same height as the docking portion 121 and the docking structure, so as to achieve accurate docking between the two devices.

Referring to fig. 1 and 2, in the embodiment, the main body 110 includes a mounting bracket 111, the mounting bracket 111 may be a rectangular frame structure, the mounting bracket 111 includes a first bracket 1111, a second bracket 1112 and a connecting bracket 1113, the first bracket 1111 and the second bracket 1112 are disposed at an interval, and the connecting bracket 1113 is connected between the first bracket 1111 and the second bracket 1112. In some embodiments, the mounting bracket 111 may also be a plate-like structure. As shown in fig. 1, the main body 110 has a height direction H substantially parallel to the vertical direction, and the mounting brackets 111 and the fixing brackets 122 are disposed substantially at intervals along the height direction H. The mounting bracket 111 may be located above the fixing bracket 122, wherein the mounting bracket 111 and the fixing bracket 122 may be partially disposed in a staggered manner, that is, a projection portion of the mounting bracket 111 along the vertical direction falls on the fixing bracket 122. Wherein, the first support body 1111 and the part of installing support 111 are connected the support body 1113 and can stagger with fixed bolster 122, and the second support body 1112 and the part of installing support 111 are connected the support body 1113 and are located fixed bolster 122 directly over, and main part 110 still includes grudging post 112, and grudging post 112 is the cuboid structure, and grudging post 112 can set up along direction of height H, and grudging post 112 is fixed in fixed bolster 122.

Referring to fig. 1 and fig. 3, in the present embodiment, the fixing bracket 122 may be a rectangular frame structure, the abutting portion 121 includes a bracket body 1221, a first fixing portion 1222 and a second fixing portion 1223, the bracket body 1221 includes a side surface 1224, and the first fixing portion 1222 and the second fixing portion 1223 are disposed at an opposite interval and are connected to the side surface 1224. As shown in fig. 3 and 4, the abutting portion 121 may be an abutting hole 1211, and the abutting hole 1211 may be disposed at an end of the fixed bracket 122 facing the rotating bracket 132. The docking hole 1211 may include a first hole 1212 and a second hole 1213, the first hole 1212 is disposed on the first fixing portion 1222, the second hole 1213 is disposed on the second fixing portion 1223, and the first hole 1212 and the second hole 1213 are coaxial, and the hole diameters of the first hole 1212 and the second hole 1213 may be the same or different. When in butt joint, the height of the ground of the butt joint hole 1211 is firstly adjusted to the same position as the height of the butt joint structure such as the connection hole of other devices, and then the connecting piece is inserted into the butt joint structure such as the butt joint hole 1211 and the connection hole corresponding to the butt joint hole 1211, so that the butt joint installation between the two devices can be realized, wherein the height of the ground refers to the height from the center of the butt joint part 121 to the ground, and may be the height from the axle center of the butt joint hole 1211 to the ground.

In some embodiments, the number of the first fixing portions 1222 and the second fixing portions 1223 may be two, and each of the first fixing portions 1222 and each of the second fixing portions 1223 are oppositely spaced.

In this embodiment, the adjusting device 130 includes a telescopic mechanism 131 and a rotating bracket 132, the rotating bracket 132 is rotatably connected to the mounting bracket 111, the telescopic mechanism 131 is disposed above the docking portion 121, one end of the telescopic mechanism 131 is connected to the fixed bracket 122, and the other end of the telescopic mechanism 131 is in transmission connection with the rotating bracket 132 to change the ground inclination angle of the fixed bracket 122. The ground inclination angle refers to an inclination angle between the upper surface or the lower surface of the fixed bracket 122 and a horizontal plane, wherein one end of the rotating bracket 132 may be hinged to the first body 1111 of the mounting bracket 111, and the rotating bracket 132 may rotate relative to the first body 1111. The rotating bracket 132 is spaced apart from the mounting bracket 111, and the abutting portion 121 faces the rotating bracket 132, i.e., the abutting hole 1211 is disposed at an end of the mounting bracket 111 facing the rotating bracket 132. When the inclination angle of the ground of the fixed bracket 122 is changed, the height of the ground of the docking portion 121 is also changed, for example, when the fixed bracket 122 tilts forward relative to the ground, the height of the docking portion 121 relative to the ground is reduced, that is, the height of the ground of the docking portion 121 is reduced.

In this embodiment, the telescopic mechanism 131 may be an air cylinder, the telescopic mechanism 131 includes a cylinder 1311 and a telescopic rod 1312, the cylinder 1311 is disposed on the main body 110, and the telescopic rod 1312 is telescopically disposed on the cylinder 1311 and is in transmission connection with the rotating bracket 132. The telescopic rod 1312 can be connected to the end of the rotating bracket 132 far away from the mounting bracket 111, and during the process that the telescopic rod 1312 extends out of the cylinder 1311, the telescopic rod 1312 pushes the rotating bracket 132 to rotate in the clockwise direction; during the retraction of the telescopic rod 1312 into the cylinder 1311, the telescopic rod 1312 pulls the rotating bracket 132 to rotate in the counterclockwise direction. In other embodiments, the telescoping mechanism 131 may be other types of transmission mechanisms, for example, the telescoping mechanism 131 may be a hydraulic cylinder, an electric lift cylinder, or the like.

In some embodiments, the rotating bracket 132 may include a rotating plate 1321 and a connecting plate 1322, the rotating plate 1321 may be rotatably connected to the mounting bracket 111, the connecting plate 1322 and the rotating plate 1321 are connected at an angle, as an example, the angle formed between the connecting plate 1322 and the rotating plate 1321 may be approximately 90 ° to form a substantially T-shaped structure, the connecting plate 1322 is connected to a middle portion of the rotating plate 1321 and is disposed toward the telescopic rod 1312, and the telescopic rod 1312 may be connected to the connecting plate 1322 to rotate the rotating bracket 132. By providing the coupling plate 1322 to the rotating plate 1321 and toward the telescopic link 1312, the distance of the rotating bracket 132 from the telescopic link 1312 may be reduced so that the telescopic link 1312 may be coupled to the rotating bracket 132 with a shorter length. In some embodiments, only the rotating plate 1321 may be provided, and the telescopic rod 1312 may be directly connected to the rotating plate 1321.

In some embodiments, the telescopic mechanism 131 may be hinged or fixed to the main body 110, and as an example, the cylinder 1311 may be hinged to the main body 110, and the telescopic rod 1312 may be hinged to the rotating bracket 132. The cylinder 1311 can rotate relative to the main body 110 during the rotation of the telescopic rod 1312 driving the rotation bracket 132, and the telescopic rod 1312 can rotate relative to the rotation bracket 132, so that the telescopic mechanism 131 can adjust the direction during the rotation of the rotation bracket 132. As another example, the cylinder 1311 may be fixed to the body 110 such that the telescopic rod 1312 may be kept stationary during pushing the rotation bracket 132 to rotate, and the cylinder 1311 may be kept stationary such that the telescopic rod 1312 transmits force to the rotation bracket 132 in a specific direction.

Referring to fig. 1 and 4, in the present embodiment, the mobile vacuum cleaner 100 includes a first wheel 151 and a second wheel 152, the first wheel 151 is rotatably disposed on the rotating bracket 132, the second wheel 152 is rotatably disposed on the fixing bracket 122, a center of mass of the mobile vacuum cleaner 100 is located between the first wheel 151 and the second wheel 152, and the docking portion 121 is located between the first wheel 151 and the second wheel 152. Since the telescopic mechanism 131 may incline the fixed bracket 122 and the main body 110 during the adjustment of the height of the docking portion 121 relative to the ground, the portable vacuum cleaner 100 may be prevented from falling down by locating the center of mass of the portable vacuum cleaner 100 between the first wheel 151 and the second wheel 152.

The first wheel 151 may be a front wheel and the second wheel 152 may be a rear wheel, and the first wheel 151 and the second wheel 152 have the same outer diameter and substantially parallel rotational axes. The first wheel 151 is rotatably disposed at an end of the rotating bracket 132 away from the mounting bracket 111, and the second wheel 152 is rotatably disposed at a bottom surface of the fixing bracket 122. The number of the first wheels 151 may be one or more, the number of the second wheels 152 may be one or more, for example, the number of the first wheels 151 is one, the number of the second wheels 152 is two, the two second wheels 152 are arranged side by side at intervals, and the first wheels 151 may be disposed on a perpendicular bisector of a central connecting line of the two wheels 152.

As shown in fig. 5, when the first wheel 151 and the second wheel 152 are located on the horizontal ground, when the rotating bracket 132 is located at the first position, wherein the first position may be a position where the rotating bracket 132 is located when the rotating bracket 132 is approximately perpendicular to the mounting bracket 111, and when the fixing bracket 122 of the supporting bracket 120 is approximately parallel to the horizontal ground, the ground height of the abutting part 121 is h 1; as shown in fig. 6, when the rotating bracket 132 rotates from the first position to the second position, wherein the second position may be any position where the included angle formed between the rotating bracket 132 and the mounting bracket 111 is smaller than 90 °, the telescopic rod 1312 of the telescopic mechanism 131 is retracted into the cylinder 1311, the telescopic rod 1312 rotates in the counterclockwise direction (the direction shown by the arrow in fig. 5) during the telescoping process, the rotating bracket 132 rotates from the first position to the second position, the ground inclination angle of the rotating bracket 132 relative to the horizontal ground increases during the rotating process, so that the supporting bracket 120 tilts forward relative to the horizontal ground, the abutting part 121 arranged on the fixed bracket 120 tilts forward relative to the horizontal ground during the forward tilting of the supporting bracket 120 relative to the horizontal ground, and the height of the abutting part 121 from the ground decreases as the supporting bracket 120 tilts forward relative to the horizontal ground to a greater extent, that is, during the process of rotating the rotating bracket 132 from the first position to the second position, the ground height of the abutting part 121 is continuously reduced; when the rotating bracket 132 rotates from the second position to the first position, the rotating bracket 132 rotates clockwise, the ground inclination angle of the rotating bracket 132 relative to the horizontal ground is gradually reduced, the inclination degree of the supporting frame 120 relative to the horizontal ground is gradually reduced, so that the ground height of the abutting portion 121 is continuously increased, and when the rotating bracket 132 rotates to the first position, the ground height of the abutting portion 121 is maximum. The rotating bracket 132 is driven by the telescopic mechanism 131 to rotate along different directions, so that the ground height of the butt joint part 121 can be adjusted, and when the butt joint part 121 is in butt joint with the butt joint structure of other devices, the butt joint part 121 can be accurately butted with the other devices only by adjusting the butt joint part 121 to the ground height same as that of the butt joint structure through the telescopic mechanism 131.

The mobile vacuum cleaner 100 provided by the present application is installed in a docking manner by providing the docking portion 121 and a docking structure of another device, and when the docking portion 121 is not at the same height as the docking structure of the other device, the ground height of the docking portion 121 can be adjusted by the adjusting device 130 so that the docking portion 121 and the docking structure maintain the same height, thereby achieving accurate docking between the docking portion 121 and the docking structure.

Referring to fig. 7, the present embodiment further provides a grinding and dust-collecting apparatus 200, which includes a grinding machine 210 detachably connected to the mobile dust collector 100.

Referring to fig. 7 and 8, in the present embodiment, the grinder 210 includes a base 212 and an extension 213, the extension 213 is connected to the base 212 and disposed toward the docking portion 121, and the extension 213 is provided with a connection hole 2111 to be detachably connected to the docking portion 121. The extension part 213 may have a plate-shaped structure, wherein the thickness of the extension part 213 may be less than the distance between the first fixing part 1222 and the second fixing part 1223, and during the docking installation, the extension part 213 may extend between the first fixing part 1222 and the second fixing part 1223, and the connection hole 2111, the first hole 1212, and the second hole 1213 may be connected to the grinder 210 and the mobile vacuum cleaner 100 by a connection member passing through the first hole 1212, the connection hole 2111, and the second hole 1213. The aperture size of the connection hole 2111 may be the same as the aperture size of the first hole 1212 and the aperture size of the second hole 1213, or may be different, and may be specifically adjusted according to actual requirements.

When the grinder 210 and the mobile dust collector 100 are installed in a butt joint mode, if the connecting hole 2111 and the butt joint part 121 are located at the same height, the grinder 210 and the mobile dust collector 100 approach each other until the connecting hole 2111 and the butt joint part 121 are aligned, and then the connecting piece is arranged in the connecting hole 2111 and the butt joint part 121 in a penetrating mode to achieve butt joint installation of the grinder 210 and the mobile dust collector 100, manual butt joint is avoided, and labor is saved. If the connection hole 2111 and the docking portion 121 are not at the same height, as shown in fig. 7, the floor where the grinder 210 is located is lower than the floor where the mobile vacuum cleaner 100 is located, and the floor where the grinder 210 is located and the floor where the mobile vacuum cleaner 100 is located have a height difference H, at this time, the height where the docking portion 121 is located is higher than the height where the connection hole 2111 is located, that is, the docking portion 121 and the connection hole 2111 are not at the same level, and there is a certain height distance difference between the docking portion 121 and the connection hole 2111. The rotating bracket 132 can be driven by the telescopic mechanism 131 to rotate in the counterclockwise direction to reduce the ground height of the docking portion 121 until the center of the docking portion 121 and the center of the connection hole 2111 are at the same horizontal height, wherein after the docking portion 121 is adjusted to be at the same height as the connection hole 2111, the grinder 210 and the mobile dust collector 100 approach each other until the connection hole 2111 and the docking portion 121 are aligned, and then the grinder 210 and the mobile dust collector 100 are mounted in a docking manner by penetrating through the connection part in the connection hole 2111 and the docking portion 121.

In the grinding process of the grinder 210, the mobile dust collector 100 can move synchronously with the grinder 210, and dust generated in the grinding process of the grinder 210 can be quickly absorbed by the mobile dust collector 100, so that the dust is prevented from flying everywhere, and meanwhile, constructors for operating the mobile dust collector 100 are saved, the labor intensity is reduced, and the working efficiency is improved.

Referring to fig. 9, in the present embodiment, the grinder 210 may further include a first rotating wheel 221 and a second rotating wheel 222, the first rotating wheel 221 and the second rotating wheel 222 have the same outer diameter and are coaxially disposed, the first rotating wheel 221 and the second rotating wheel 222 may be disposed side by side on the bottom surface of the base 212, the top of the first rotating wheel 221 and the top of the second rotating wheel 222 are both located on a first tangent plane, the bottom of the first rotating wheel 221 and the bottom of the second rotating wheel 222 are both located on a second tangent plane parallel to and spaced from the first tangent plane, the second tangent plane is used for contacting the ground, and after the mobile vacuum cleaner is connected to the grinder, the first wheel 151 of the mobile vacuum cleaner 100 may be located between the first tangent plane and the second tangent plane or above the first tangent plane, and in addition, the first wheel 151 may intersect or be tangent to the first tangent plane, only by ensuring that the first wheel 151 is not in contact with the ground.

The first wheel 151, the first rotating wheel 221 and the second rotating wheel 222 may be located on the same line, and since the tangent planes of the three wheels are located on the same horizontal plane, it is easy to cause over-positioning, so that the first rotating wheel 221 and the second rotating wheel 222 of the grinder 210 may not effectively contact the ground, resulting in a slipping phenomenon between the first rotating wheel 221 and the second rotating wheel 222, and therefore, after the grinder 210 and the mobile vacuum cleaner 100 are mounted in a butt joint manner, the first wheel 151 may be lifted to a certain height by the telescopic mechanism 131, so as to ensure that the first wheel 151 is not in contact with the ground, that is, the first wheel 151 is separated from the second tangent plane contacting the ground to be away from the ground, thereby preventing the first rotating wheel 221 and the second rotating wheel 222 from slipping, and enabling the first rotating wheel 221 and the second rotating wheel 222 to contact the ground.

When the grinder 210 and the mobile vacuum cleaner 100 need to be separated, the first wheel 151 needs to be lowered to a certain height by the telescopic mechanism 131 until the docking portion 121 of the mobile vacuum cleaner 100 is at the same height as the coupling hole 2111 of the grinder 210. Then, the connection member connected to the docking portion 121 and the connection hole 2111 is pulled out, and the grinder 210 and the mobile vacuum cleaner 100 are separated from each other, thereby achieving easy separation and convenient operation.

In summary, the connection hole 2111 of the grinder 210 in the grinding and dust-collecting apparatus 200 provided by the present application is detachably connected to the docking portion 121 of the mobile dust collector 100, so as to facilitate the detachment and installation of the two, and meanwhile, the adjustment device 130 can adjust the docking portion 121 to the same height as the connection hole 2111, and does not need manual docking, so as to achieve precise docking and installation of the two; the grinding and dust-absorbing device 200 integrates grinding and dust-absorbing functions, and avoids a large amount of dust in the grinding process.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.