A dust-suction assembly and a floor grinding robot

Abstract

The utility model relates to the technical field of floor grinding equipment discloses a dust suction assembly and floor grinding robot, including shell, air inlet pipe, air outlet pipe, filter core, vibration subassembly and poking subassembly, shell forms the closed inner chamber, filter core sets up in the inner chamber, filter core divides into filter chamber and clean gas chamber with the inner chamber, air inlet pipe links through filter chamber, and air inlet pipe is used for inputting the gas with dust, and air outlet pipe communicates clean gas chamber, and air outlet pipe is used for discharging the filtered gas, vibration subassembly connects filter core, and vibration subassembly is used for vibrating filter core, and filter core is provided with a plurality of fins, and poking subassembly is used for poking fin. Through simultaneously using vibration subassembly and poking subassembly, filter core cleaning efficiency is higher, solves the problem that when using vibration subassembly or poking subassembly alone, cleaning efficiency is low, and cleaning is not thorough, solves the problem that when using vibration mode alone, noise is big, and when using poking mode alone, filter core service life is short.

Description

Technical Field

[0001] This utility model relates to the field of floor grinding equipment technology, and in particular to a dust collection component and a floor grinding robot. Background Technology

[0002] Floor grinding robots, widely used in floor treatment, finishing, and polishing, are essential equipment for effectively treating concrete and stone floors. However, during grinding operations, the high-speed rotating grinding disc generates a large amount of fine dust particles. This dust not only pollutes the working environment and harms the health of operators but can also affect the grinding effect and the normal operation of the equipment. To control dust pollution during grinding, modern floor grinding robots are typically equipped with a dust collection system. This system uses a fan to create negative pressure, drawing in the dust-laden gas generated during grinding and purifying it through a filtration device.

[0003] Currently, the filtration devices in the dust collection systems of floor grinding robots generally use filter cartridges to capture dust. As a key filtration element, the filter cartridge effectively separates dust from the air, allowing purified air to be discharged. However, as the grinding operation continues, dust gradually accumulates on the surface of the filter cartridge, forming a filter cake layer. This reduces the filter cartridge's permeability, weakens the suction of the dust collection system, and lowers filtration efficiency. To maintain the normal operating performance of the dust collection system, the filter cartridges need to be cleaned regularly to remove the dust adhering to their surface. Existing floor grinding robots or their associated dust collection systems typically use mechanical vibration or agitation to attempt to remove the dust from the filter cartridge surface through external force during filter cartridge cleaning.

[0004] However, current technologies that rely solely on vibration or agitation to clean the filter cartridges of floor grinding robots often suffer from ineffective results. Especially for fine, sticky, or moist dust, simple vibration or agitation is insufficient to completely detach it from the filter fibers, leaving some dust residue on the filter surface or inside. This not only affects subsequent filtration efficiency, accelerates filter clogging, and shortens filter lifespan, but also necessitates frequent manual cleaning or replacement, increasing maintenance costs and downtime. Furthermore, it fails to fundamentally solve the dust pollution problem during the grinding process, limiting the floor grinding robot's ability to operate efficiently for extended periods. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this invention is to propose a dust collection component and a floor grinding robot that can effectively clean the dust accumulated in the fins of the filter element and improve the overall efficiency of the dust collection component.

[0006] To achieve this objective, the present invention adopts the following technical solution: A dust collection assembly includes a housing, an inlet pipe, an outlet pipe, a filter element, a vibration component, and a toggle component. The housing forms a closed inner cavity, and the filter element is disposed in the inner cavity, dividing the inner cavity into a filtration chamber and a clean air chamber. The inlet pipe is connected to the filtration chamber and is used to input gas containing dust. The outlet pipe is connected to the clean air chamber and is used to discharge filtered gas. The vibration component is connected to the filter element and is used to vibrate the filter element. The filter element is provided with a plurality of fins, and the toggle component is used to actuate the fins.

[0007] Preferably, it further includes a sealing assembly. The outer shell includes an upper cover and a lower shell. The upper cover is openably disposed above the lower shell. The upper cover is provided with a first flange, and the lower shell is provided with a second flange. The filter element is provided with a mesh plate. The sealing assembly is disposed between the first flange and the second flange. The first flange and the second flange clamp the edge of the mesh plate together through the sealing assembly.

[0008] Preferably, the sealing assembly includes an upper bracket, a lower bracket, an upper adhesive strip, a lower adhesive strip, an upper adhesive pad, and a lower adhesive pad, with the first flange, the upper adhesive strip, the upper bracket, the upper adhesive pad, the mesh plate, the lower adhesive pad, the lower bracket, the lower adhesive strip, and the second flange arranged sequentially from top to bottom.

[0009] Preferably, the upper bracket is provided with a plurality of first through holes, and the lower bracket is provided with a plurality of nuts opposite to the first through holes. A bolt matching the nut passes through the first through hole, and the bolt and the nut are used to lock the upper bracket and the lower bracket.

[0010] Preferably, the sealing assembly further includes a locking plate, the bolt is provided with a hexagonal nut, the locking plate is disposed on the upper side of the upper bracket, and the locking plate is provided with a plurality of fixing holes that match the shape of the hexagonal nut, the fixing holes being used to restrict the rotation of the bolt around its axial direction.

[0011] Preferably, the vibration component is a vibration motor, which is disposed in the inner cavity and fixed to the mesh plate.

[0012] Preferably, the fins are arranged at intervals in the left-right direction. The actuating assembly includes an actuating plate and two connecting rods. The actuating plate is connected to the two connecting rods. The actuating plate is provided with a plurality of paddles and a plurality of hollowed-out portions. The paddles extend into the intervals between the fins. The two connecting rods are arranged parallel in the left-right direction. Two clearance holes are provided on each of the left and right sides of the outer shell. The connecting rods pass through the clearance holes. The connecting rods are used to drive the actuating plate and the paddles to move back and forth. The movement of the paddles is used to actuate the fins.

[0013] Preferably, it further includes two connecting frames and a protective cover. The connecting frames, the protective cover, the air inlet pipe and the air outlet pipe are disposed on the same side of the outer shell. The air inlet pipe is located between the two connecting frames. The vertical projections of the connecting frames, the air inlet pipe and the air outlet pipe are all located between the protective cover and the outer shell. The angle between the air inlet pipe and the air outlet pipe and the side of the connected outer shell is not greater than 30°.

[0014] Preferably, the upper adhesive strip and the lower adhesive strip are hollow adhesive strips. The upper adhesive strip includes an inner adhesive strip and an outer adhesive strip. The inner adhesive strip is disposed on the inner edge of the upper side surface of the upper bracket, and the outer adhesive strip is disposed on the outer edge of the upper side surface of the upper bracket.

[0015] A floor grinding robot includes a moving unit, a grinding unit, a mounting frame, a negative pressure pump, a dust collection bag, and the aforementioned dust collection component. The mounting frame connects the moving unit, the grinding unit, and the dust collection component. The moving unit is used to drive the floor grinding robot to move as a whole. The negative pressure pump is connected to the air outlet pipe, and the dust collection bag is connected to the outer shell.

[0016] The technical solution provided by this utility model can include the following beneficial effects: 1. By using both vibration and agitation components simultaneously, the filter element cleaning efficiency is higher, solving the problems of low cleaning efficiency and incomplete cleaning when using vibration or agitation components alone, and solving the problems of high noise when using vibration alone and short filter element life when using agitation alone.

[0017] 2. By clamping the first flange, the second flange, and the sealing assembly together, the screen plate that serves as the support in the filter element is limited, so that the screen plate can only vibrate between the first flange and the second flange within the elastic range of the sealing assembly, thus avoiding overall displacement of the filter element that could lead to equipment failure.

[0018] 3. By using upper and lower supports, along with upper and lower rubber pads to clamp the mesh plate, the connection between the sealing assembly and the filter element is made more stable. At the same time, the upper and lower supports form an extension support for the mesh plate. The first and second flanges are movably connected by the upper and lower supports, respectively, allowing the filter element to have a larger range of movement in the sealing assembly. This improves the efficiency of vibration cleaning of the filter element and solves the problem that the vibration range is limited during vibration or prying cleaning due to the small distance between the fins and the edge of the mesh plate, resulting in low cleaning efficiency and easy damage to the fin edges.

[0019] 4. Secure the upper and lower brackets to the filter element with bolts and nuts. First, install the sealing assembly onto the filter element from the outside, and then install the filter element with the sealing assembly into the inner cavity. This solves the problem of complicated installation of multi-layer sealing assemblies and the difficulty in completing the installation in the narrow space of the inner cavity.

[0020] 5. By using a locking plate to limit the nut, the problem of bolts loosening due to filter element vibration during filter element cleaning, causing unexpected displacement of the filter element or poor sealing is solved.

[0021] 6. By directly fixing the vibration motor to the screen plate, the transmission efficiency is higher. The filter element vibrates within the buffer range of the upper and lower rubber strips, resulting in more efficient fin cleaning and reduced noise from the shell vibration. By placing the vibration motor inside the cavity, the shell can block sound transmission, reducing the noise generated by the vibration motor itself. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of one embodiment of the present invention.

[0023] Figure 2 This is a cross-sectional view from another direction of one embodiment of the present invention.

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 for Figure 1 Enlarged view of point B in the middle.

[0026] Figure 5 This is a three-dimensional structural diagram of one embodiment of the present invention.

[0027] Figure 6 This is a bottom view of one embodiment of the present invention.

[0028] The components include: outer shell 1, inner cavity 100, filter cavity 101, clean air cavity 102, dust collection hole 103, air vent hole 104, upper cover 11, first flange 111, lower shell 12, second flange 121, air inlet pipe 21, air outlet pipe 22, filter element 3, fins 31, mesh plate 32, vibration assembly 4, actuation assembly 5, actuation plate 51, connecting rod 52, actuation piece 53, hollow part 54, sealing assembly 6, upper bracket 61, first through hole 611, bolt 612, hexagonal nut 613, lower bracket 62, nut 621, upper adhesive strip 63, inner adhesive strip 631, outer adhesive strip 632, lower adhesive strip 64, upper adhesive pad 65, lower adhesive pad 66, locking plate 67, fixing hole 671, connecting frame 7, and protective cover 8. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0031] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0034] A dust collection assembly includes a housing 1, an air inlet pipe 21, an air outlet pipe 22, a filter element 3, a vibration assembly 4, and a toggle assembly 5. The housing 1 forms a closed inner cavity 100. The filter element 3 is disposed in the inner cavity 100, dividing the inner cavity 100 into a filtration chamber 101 and a clean air chamber 102. The air inlet pipe 21 is connected to the filtration chamber 101 and is used to input gas containing dust. The air outlet pipe 22 is connected to the clean air chamber 102 and is used to discharge filtered gas. The vibration assembly 4 is connected to the filter element 3 and is used to vibrate the filter element 3. The filter element 3 is provided with a plurality of fins 31, and the toggle assembly 5 is used to toggle the fins 31.

[0035] When cleaning filter element 3 using vibration alone, a high-power vibration motor is required to provide large-amplitude vibrations to improve the efficiency of each cleaning. This large-amplitude vibration generates significant noise. Furthermore, because high-power vibration motors are large, they are often installed externally on the housing, achieving the effect of vibrating filter element 3 through overall vibration or even impact. This results in low transmission efficiency and high noise. When using the actuation component 5 alone, the fins 31 must be bent significantly to improve cleaning efficiency. Repeated cleaning can easily lead to deformation of the fins 31, affecting the lifespan of filter element 3.

[0036] like Figure 1 As shown, by using both the vibration component 4 and the agitation component 5 simultaneously, the filter element 3 achieves higher cleaning efficiency, solving the problems of low cleaning efficiency and incomplete cleaning when using either the vibration component 4 or the agitation component 5 alone, as well as the problems of high noise when using vibration alone and short service life of filter element 3 when using agitation alone.

[0037] Preferably, it also includes a sealing assembly 6. The outer shell 1 includes an upper cover 11 and a lower shell 12. The upper cover 11 is openably disposed above the lower shell 12. The upper cover 11 is provided with a first flange 111, and the lower shell 12 is provided with a second flange 121. The filter element 3 is provided with a mesh plate 32. The sealing assembly 6 is disposed between the first flange 111 and the second flange 121. The first flange 111 and the second flange 121 clamp the edge of the mesh plate 32 through the sealing assembly.

[0038] In a specific embodiment, after opening the upper cover 11, the filter element 3 can be removed from the inner cavity 100, facilitating thorough cleaning or replacement of the filter element 3. The bottom of the lower shell 12 is funnel-shaped to facilitate the collection of shaken-off dust. A dust collection hole 103 is provided at the bottom of the lower shell 12, which is used to discharge the dust that falls on the fins 31.

[0039] like Figure 2 As shown, the first flange 111, the second flange 121 and the sealing assembly are clamped together to limit the mesh plate 32, which serves as a support in the filter element 3, so that the mesh plate 32 can only vibrate between the first flange 111 and the second flange 121 within the elastic range of the sealing assembly, thus avoiding overall displacement of the filter element 3 and causing equipment failure.

[0040] Preferably, the sealing assembly 6 includes an upper bracket 61, a lower bracket 62, an upper adhesive strip 63, a lower adhesive strip 64, an upper adhesive pad 65, and a lower adhesive pad 66, wherein the first flange 111, the upper adhesive strip 63, the upper bracket 61, the upper adhesive pad 65, the mesh plate 32, the lower adhesive pad 66, the lower bracket 62, the lower adhesive strip 64, and the second flange 121 are arranged sequentially from top to bottom.

[0041] like Figure 3As shown, by using the upper bracket 61 and the lower bracket 62, along with the upper rubber pad 65 and the lower rubber pad 66 to clamp the mesh plate 32, the connection between the sealing assembly 6 and the filter element 3 is made more stable. At the same time, the upper bracket 61 and the lower bracket 62 form an extension support for the mesh plate 32. The first flange 111 and the second flange 121 are movably connected by the upper bracket 61 and the lower bracket 62, respectively, so that the filter element 3 has a larger range of motion in the sealing assembly 6, which improves the efficiency of vibration cleaning of the filter element 3. This solves the problem that the vibration range is limited during vibration or prying cleaning due to the small distance between the fins 31 and the edge of the mesh plate 32, resulting in low cleaning efficiency and easy damage to the edge of the fins 31.

[0042] Preferably, the lower support 62 is provided with a downwardly extending protective flange, which is located between the fin 31 and the second flange 121.

[0043] The protective flange further prevents the fin 31 from being damaged by the collision of the second flange 121.

[0044] Preferably, the upper bracket 61 is provided with a plurality of first through holes 611, and the lower bracket 62 is provided with a plurality of nuts 621 opposite to the first through holes 611. Bolts 612 matching the nuts 621 are inserted into the first through holes 611. The bolts 612 and the nuts 621 are used to lock the upper bracket 61 and the lower bracket 62.

[0045] like Figure 4 As shown, in a specific embodiment, the upper adhesive strip 63 and the upper adhesive pad 65 are fixed to the upper bracket 61, and the lower adhesive strip 64 and the lower adhesive pad 66 are fixed to the lower bracket 62. The upper bracket 61 and the lower bracket 62 are locked to the filter element 3 by bolts 612 and nuts 621. The sealing assembly 6 is first installed on the filter element 3 externally, and then the filter element 3 with the sealing assembly 6 is installed in the inner cavity 100. This solves the problem that the installation of the multi-layer sealing assembly 6 is cumbersome and difficult to complete in the narrow space of the inner cavity 100.

[0046] Preferably, the sealing assembly 6 further includes a locking plate 67, the bolt 612 is provided with a hexagonal nut 613, the locking plate 67 is provided on the upper side of the upper bracket 61, and the locking plate 67 is provided with a plurality of fixing holes 671 that match the shape of the hexagonal nut 613. The fixing holes 671 are used to restrict the rotation of the bolt 612 around its axial direction.

[0047] By limiting the nut 613 with locking plate 67, the problem of bolt 612 turning and loosening due to vibration of filter element 3 during filter element 3 cleaning is solved, which causes unexpected displacement of filter element 3 or poor sealing.

[0048] Preferably, the vibration component 4 is a vibration motor, which is disposed in the inner cavity 100 and fixed to the mesh plate 32.

[0049] The vibration motor vibrates, causing the mesh plate 32 and the entire filter element 3 to vibrate, shaking off the dust accumulated on the fins 31. By directly fixing the vibration motor to the mesh plate 32, the transmission efficiency is higher. The filter element 3 vibrates within the buffer range of the upper and lower rubber strips 63 and 64, making the cleaning of the fins 31 more efficient and reducing the noise caused by the vibration of the outer shell 1. By placing the vibration motor in the inner cavity 100, the outer shell 1 can block the sound transmission, reducing the noise generated by the vibration motor itself.

[0050] Preferably, a plurality of the fins 32 are arranged at intervals in the left-right direction. The actuating assembly 5 includes an actuating plate 51 and two connecting rods 52. The actuating plate 51 is connected to the two connecting rods 52. The actuating plate 51 is provided with a plurality of paddles 53 and a plurality of hollow portions 54. The paddles 53 extend into the intervals between the fins 32. The two connecting rods 52 are arranged parallel in the left-right direction. Two clearance holes 104 are provided on each of the left and right sides of the outer shell 1. The connecting rods 52 pass through the clearance holes 104. The connecting rods 52 are used to drive the actuating plate 51 and the paddles 53 to move back and forth. The movement of the paddles 53 is used to actuate the fins 32.

[0051] In a specific embodiment, the fins 31 are disposed below the mesh plate 32, and the actuating assembly 5 is disposed below the fins 31. The connecting rod 52 is moved along its length direction by manual operation or by a drive motor, which drives the actuating plate 51 and the actuating piece 53 on it to actuate the fins 31, shaking off the dust accumulated on the fins 31. The shaken-off dust passes through the hollow part 54 and is discharged from the dust collection hole 103.

[0052] Preferably, it further includes two connecting frames 7 and a protective cover 8. The connecting frames 7, the protective cover 8, the air inlet pipe 21 and the air outlet pipe 22 are disposed on the same side of the outer shell 1. The air inlet pipe 21 is located between the two connecting frames 7. The vertical projections of the connecting frames 7, the air inlet pipe 21 and the air outlet pipe 22 are all located between the protective cover 8 and the outer shell 1. The angle between the air inlet pipe 21 and the air outlet pipe 22 and the side of the outer shell 1 to which they are connected is not greater than 30°.

[0053] In a specific embodiment, the connecting frame 7 is a telescopic support, and the dust collection assembly is mounted on the mounting frame of the floor grinding robot via the connecting frame 7. The air inlet pipe 21 and the air outlet pipe 22 are positioned between the connecting frame 7, and also between the mounting frame and the outer shell 1 of the dust collection assembly, with a protective cover 8 added to prevent collisions between the air inlet pipe 21 and the air outlet pipe 22 that could cause equipment malfunction. By tilting the air inlet pipe 21 and the air outlet pipe 22, air can form a circulation within the inner cavity 100, improving filtration efficiency.

[0054] Preferably, the upper adhesive strip 63 and the lower adhesive strip 64 are hollow adhesive strips. The upper adhesive strip 63 includes an inner adhesive strip 631 and an outer adhesive strip 632. The inner adhesive strip 631 is disposed on the inner edge of the upper side of the upper bracket 61, and the outer adhesive strip 632 is disposed on the outer edge of the upper side of the upper bracket 61.

[0055] Hollow rubber strips are used to increase the deformation rate of the upper rubber strip 63 and the lower rubber strip 64, thereby increasing the vibration range of the filter element 3 and improving cleaning efficiency. The double-layer rubber strip configuration of the inner rubber strip 631 and the outer rubber strip 632 further ensures the sealing effect of the clean air chamber 102, preventing the filtered gas from being recontaminated and guaranteeing the filtration effect.

[0056] A floor grinding robot includes a moving unit, a grinding unit, a mounting frame, a negative pressure pump, a dust collection bag, and the aforementioned dust collection component. The mounting frame connects the moving unit, the grinding unit, and the dust collection component. The moving unit is used to drive the floor grinding robot to move as a whole. The negative pressure pump is connected to the air outlet pipe, and the dust collection bag is connected to the dust collection hole 103.

[0057] The moving unit and the grinding unit work together to grind the ground. During this process, the negative pressure fan draws dusty air into the dust collection assembly. After working for a certain period of time, the moving unit, the grinding unit, and the negative pressure fan stop. The vibrating motor in the dust collection assembly is then manually turned on, and the filter element is cleaned using the toggle assembly. The accumulated dust on the filter element falls into the dust collection bag. After cleaning, the moving unit, the grinding unit, and the negative pressure fan are restarted to continue the grinding work.

[0058] Other configurations and operations according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0059] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dust collection component, characterized in that: The device includes a housing, an air inlet pipe, an air outlet pipe, a filter element, a vibration assembly, and a toggle assembly. The housing forms a closed inner cavity, and the filter element is disposed within the inner cavity, dividing the inner cavity into a filtration chamber and a clean air chamber. The air inlet pipe connects to the filtration chamber and is used to input gas containing dust. The air outlet pipe connects to the clean air chamber and is used to discharge filtered gas. The vibration assembly is connected to the filter element and is used to vibrate the filter element. The filter element is provided with several fins, and the toggle assembly is used to actuate the fins.

2. A dust collection assembly according to claim 1, characterized in that: It also includes a sealing assembly. The housing includes an upper cover and a lower cover. The upper cover is openably disposed above the lower cover. The upper cover is provided with a first flange. The lower cover is provided with a second flange. The filter element is provided with a mesh plate. The sealing assembly is disposed between the first flange and the second flange. The first flange and the second flange clamp the edge of the mesh plate together through the sealing assembly.

3. A dust collection assembly according to claim 2, characterized in that: The sealing assembly includes an upper bracket, a lower bracket, an upper adhesive strip, a lower adhesive strip, an upper adhesive pad, and a lower adhesive pad, with the first flange, the upper adhesive strip, the upper bracket, the upper adhesive pad, the mesh plate, the lower adhesive pad, the lower bracket, the lower adhesive strip, and the second flange arranged sequentially from top to bottom.

4. A dust collection assembly according to claim 3, characterized in that: The upper bracket is provided with a plurality of first through holes, and the lower bracket is provided with a plurality of nuts opposite to the first through holes. Bolts matching the nuts are inserted through the first through holes, and the bolts and nuts are used to lock the upper bracket and the lower bracket.

5. A dust collection assembly according to claim 4, characterized in that: The sealing assembly also includes a locking plate. The bolt is provided with a hexagonal nut. The locking plate is located on the upper side of the upper bracket. The locking plate is provided with a plurality of fixing holes that match the shape of the hexagonal nut. The fixing holes are used to restrict the rotation of the bolt around its axis.

6. A dust collection assembly according to claim 2, characterized in that: The vibration component is a vibration motor, which is disposed in the inner cavity and fixed to the mesh plate.

7. A dust collection assembly according to claim 1, characterized in that: The fins are arranged at intervals in the left-right direction. The actuating assembly includes an actuating plate and two connecting rods. The actuating plate is connected to the two connecting rods. The actuating plate is provided with a plurality of paddles and a plurality of hollowed-out portions. The paddles extend into the intervals between the fins. The two connecting rods are arranged parallel to each other in the left-right direction. Two clearance holes are provided on each of the left and right sides of the outer shell. The connecting rods pass through the clearance holes. The connecting rods are used to drive the actuating plate and the paddles to move back and forth. The movement of the paddles is used to actuate the fins.

8. A dust collection assembly according to claim 1, characterized in that: It also includes two connecting frames and a protective cover. The connecting frames, the protective cover, the air inlet pipe and the air outlet pipe are arranged on the same side of the outer shell. The air inlet pipe is located between the two connecting frames. The vertical projection of the connecting frames, the air inlet pipe and the air outlet pipe is located between the protective cover and the outer shell. The angle between the air inlet pipe and the air outlet pipe and the side of the outer shell to which they are connected is not greater than 30°.

9. A dust collection assembly according to claim 3, characterized in that: The upper and lower adhesive strips are hollow adhesive strips. The upper adhesive strip includes an inner adhesive strip and an outer adhesive strip. The inner adhesive strip is disposed on the inner edge of the upper side of the upper bracket, and the outer adhesive strip is disposed on the outer edge of the upper side of the upper bracket.

10. A floor grinding robot, characterized in that: The system includes a moving unit, a grinding unit, a mounting frame, a negative pressure pump, a dust collection bag, and a dust collection assembly as described in any one of claims 1-9. The mounting frame connects the moving unit, the grinding unit, and the dust collection assembly. The moving unit is used to drive the floor grinding robot to move as a whole. The negative pressure pump is connected to the air outlet pipe, and the dust collection bag is connected to the outer shell.

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