Cleaning equipment and self-moving robot and dust box thereof

Abstract

The embodiment of the invention provides cleaning equipment. The cleaning equipment comprises a base station and a self-moving robot. The base station is provided with a dust collection port and a fan, the bottom of the self-moving robot is provided with a plurality of door pieces capable of elastically deforming, and the door pieces can be separated from one another in a stretching state to form a dust discharge port communicated with the dust collection port and can be drawn close to one another in a contraction state to seal the dust discharge port. When the self-moving robot stops at the base station, the dust discharging opening and the dust collecting opening are at least partially overlapped, and under the suction effect of the draught fan, the multiple door pieces are pulled to be in the stretching state so that the dust discharging opening and the dust collecting opening can be communicated. In the embodiment of the invention, even if the dust discharge port and the dust collection port are deviated in alignment, as long as the dust discharge port and the dust collection port are partially overlapped, at least one part of the dust discharge port can be opened under the action of suction force, and the problem that a one-way door of an existing self-moving robot cannot be opened under the condition that the one-way door is not aligned is solved.

Description

Technical Field

[0001] The present application relates to the field of cleaning equipment, and in particular to a cleaning equipment and a self-moving robot and a dust box thereof. Background Art

[0002] The base station of an existing self-moving robot is usually provided with a dust collection function, and a corresponding one-way door structure is provided on the side or bottom of the dust box of the self-moving robot. When the self-moving robot performs a cleaning operation, the one-way door is automatically closed under the action of a torsion spring to ensure that garbage such as dust and debris can be enclosed in the dust box. When the self-moving robot is docked at the base station, the one-way door corresponds to the dust collection port of the base station, and opens under the suction of the fan to complete the dust collection operation. However, the existing self-moving robots and base stations have high requirements for the pile alignment accuracy. If the one-way door is not aligned with the dust collection port of the base station, the one-way door will be blocked and cannot be opened, resulting in the failure of the dust collection function.

[0003] In addition, in order to reduce the accuracy requirements for pile matching, the current practice is mostly to reduce the size of the one-way door and the dust exhaust port, using a small port to a large port to increase the pile matching fault tolerance of the self-moving robot. However, this method also reduces the passing rate of garbage and affects the dust collection efficiency. Summary of the invention

[0004] Multiple aspects of the present application provide a cleaning device, a self-moving robot and a dust box thereof, which open and close the dust outlet through multiple elastically deformable door panels, thereby improving the pile tolerance of the self-moving robot and improving the dust collection efficiency.

[0005] The embodiment of the present application provides a cleaning device, including a base station and a self-moving robot. The base station is provided with a dust collection port and a fan. The self-moving robot is provided with a dust box, the dust box includes a box body and a dust duct groove, the box body is provided with a dust inlet, and the dust duct groove is provided with a dust exhaust port connected to the dust inlet, wherein the dust duct groove includes a frame body and a plurality of elastically deformable door sheets, one side of the plurality of door sheets is connected to the frame body, and the other side of the plurality of door sheets are close to each other in a contracted state to close the dust exhaust port, and are separated from each other in a stretched state to open the dust exhaust port. Wherein, when the self-moving robot is docked at the base station, the dust duct groove corresponds to the dust collection port, and under the suction of the fan, at least part of the plurality of door sheets are pulled to the stretched state to connect the dust exhaust port and the dust collection port.

[0006] In some embodiments, one side of the plurality of door panels is disposed around the periphery of the frame, and the other side is obliquely extended from the frame toward the dust exhaust port.

[0007] In some embodiments, the plurality of door panels include two first door panels and two second door panels, which are staggered and connected to each other, and have folded edges at the connection points.

[0008] In some embodiments, one side of the box body has an assembly opening, the frame body is detachably disposed in the assembly opening, and the plurality of door panels shield the assembly opening.

[0009] In some embodiments, the box body is provided with a plurality of frames surrounding the assembly port, and each frame has a plurality of positioning holes. The periphery of the frame body is provided with a plurality of limiting portions correspondingly engaged in the plurality of positioning holes.

[0010] In some embodiments, the limiting portion includes a connected supporting segment and an elastically deformable stopping segment, the supporting segment is connected between the frame and the stopping segment, the stopping segment passes through the positioning hole, and the frame is clamped between the frame and the stopping segment.

[0011] In some embodiments, the base station includes a main body and a docking dock, one end of the docking dock is connected to the main body, and the other end extends outward and is provided with the dust collection port. When the self-moving robot docks at the base station, the docking dock extends into the bottom of the self-moving robot, and the dust exhaust port overlaps with the dust collection port in the projection direction of the dust duct groove.

[0012] In some embodiments, the diameter of the dust exhaust port when it is opened can be adaptively adjusted as the overlapping range of the dust exhaust port and the dust collection port changes.

[0013] The embodiment of the present application also provides a cleaning device, including a base station and a self-moving robot. The base station is provided with a dust collection port and a fan. The bottom of the self-moving robot is provided with a dust duct groove, and the dust duct groove includes a plurality of elastically deformable door pieces, one side of the plurality of door pieces is connected to the bottom, and the other side is separated from each other in a stretched state to form a dust exhaust port connected to the dust collection port, and is brought close to each other in a contracted state to close the dust exhaust port. When the self-moving robot is docked at the base station, the dust exhaust port and the dust collection port at least partially overlap, and under the suction of the fan, at least part of the plurality of door pieces are pulled to the stretched state to connect the dust exhaust port and the dust collection port.

[0014] The embodiment of the present application provides a self-propelled robot, which is provided with a dust box, the dust box includes a box body and a dust channel groove, the box body is provided with a dust inlet, and the dust channel groove is provided with a dust outlet connected to the dust inlet. The dust channel groove includes a frame body and a plurality of elastically deformable door pieces, one side of the plurality of door pieces is connected to the frame body, and the other side of the plurality of door pieces is close to each other in a contracted state to close the dust outlet, and is separated from each other in a stretched state to open the dust outlet.

[0015] The embodiment of the present application also provides a dust box of a self-moving robot, comprising a box body and a dust channel groove. The box body is provided with a dust inlet. The dust channel groove is provided with a dust outlet connected to the dust inlet, and the dust channel groove comprises a frame body and a plurality of elastically deformable door sheets, the frame body is provided on the box body, one side of the plurality of door sheets is connected to the frame body, and the other sides are close to each other in a contracted state to close the dust outlet, and are separated from each other in a stretched state to open the dust outlet.

[0016] In the embodiment of the present application, a dust channel groove is provided at the bottom of the self-moving robot, and the dust channel groove includes a plurality of elastically deformable door pieces, and one side of the plurality of door pieces is connected to the bottom, and the other side is separated from each other in a stretched state to form a dust discharge port, and is brought together in a contracted state to close the dust discharge port. When the self-moving robot is docked at the base station, the dust discharge port corresponds to the dust collection port of the base station, and under the suction of the fan inside the base station, at least part of the plurality of door pieces is pulled to the stretched state, connecting the dust discharge port and the dust collection port, and garbage such as dust, dirt and debris of the self-moving robot can be brought into the base station for cleaning.

[0017] In addition, multiple door panels can be separated from each other by the suction of the fan. Therefore, the dust exhaust port only needs to partially overlap with the dust collection port to open part of the dust exhaust port through suction, thereby achieving the dust collection effect, which greatly reduces the accuracy requirements when the self-propelled robot is docked at the base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the decomposition of the cleaning device according to an embodiment of the present application.

[0020] Figure 2 This is a schematic diagram of a dust box according to an embodiment of the present application being docked at a dock.

[0021] Figure 3 Schematic diagram of a dust box according to an embodiment of the present application.

[0022] Figure 4 This is a schematic diagram of an exploded view of a dust box according to an embodiment of the present application.

[0023] Figure 5 It is a schematic diagram of an exploded view of the dust box according to an embodiment of the present application from another perspective. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0025] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0026] See also Figures 1 to 5 The cleaning device 1 provided in the embodiment of the present application includes a base station 70 and a self-propelled robot 200. The self-propelled robot 200 referred to in this embodiment is a sweeping robot or a sweeping and mopping multifunctional machine with sweeping and / or vacuuming functions, which is used to remove dust, dirt and debris on the ground.

[0027] The base station 70 is provided with a dust collecting port 71 and a fan 72 for cleaning the waste collected by the self-moving robot 200 when the self-moving robot 200 is docked. The self-moving robot 200 is provided with a dust channel groove 20. The position of the dust channel groove 20 corresponds to the position of the dust collecting port 71, and it can be set on the side or bottom of the self-moving robot 200. In this embodiment, the dust channel groove 20 is set at the bottom of the self-moving robot 200 as an example, but it is not limited to this.

[0028] The dust channel groove 20 includes a plurality of elastically deformable door sheets (e.g., sheets made of soft rubber or silicone material). The plurality of door sheets may be, but are not limited to, a plurality of first door sheets 221 and a plurality of second door sheets 222. One side of the plurality of door sheets is connected to the bottom of the self-moving robot 200, and the other side is normally close to each other, and a dust discharge port 23 that can be opened and closed is formed between each other. Among them, at least one side where the plurality of door sheets are close to each other can be elastically deformed under the action of external force, and be in a stretched state, and separate from each other, so that the dust discharge port 23 is opened, or in the absence of external force, the elastic force of the material itself is restored to a contracted state and closes to each other to close the dust discharge port 23.

[0029] When the self-moving robot 200 is docked at the base station 70, the dust channel groove 20 may correspond to the dust collection port 71, so that the dust discharge port 23 and the dust collection port 71 at least partially overlap, and under the suction of the fan 72, at least part of the plurality of door panels are pulled to the stretched state to open the dust discharge port 23, so that the dust discharge port 23 and the dust collection port 71 form a conductive state. At the same time, the dust, dirt and debris inside the self-moving robot 200 are driven into the base station 70 through the dust collection port 71 under the suction generated by the fan. It can be understood that when the fan 72 stops working, or the self-moving robot 200 leaves the base station 70, the plurality of door panels will no longer be affected by the suction of the fan 72, and thus can be restored to the contracted state by their own elastic force, while closing the dust discharge port 23.

[0030] The dust duct groove 20 may be directly disposed on a structural member of the self-moving robot 200 , or may be detachably disposed on the self-moving robot 200 in the form of a dust box.

[0031] In some embodiments of the present application, the self-moving robot 200 further includes a host 200A and a detachable dust box 200B disposed at the bottom of the host 200A. The dust box 200B includes a box body 10 and a dust channel groove 20, and a dust inlet 11 is disposed on one side of the box body 10 to connect to the dust suction device of the self-moving robot 200, and the dust, dirt and debris from the outside can be sucked into the dust box 200B through the dust inlet 11 through the dust suction device.

[0032] The dust duct groove 20 further includes a frame 21, and one side of each door piece is connected to the frame 21, and the other side is inclined and extended toward the dust outlet 23, so that the multiple door pieces are in a contracted state close to each other, forming a cone-like funnel structure under the frame. In addition, it can be understood that the dust duct groove 20 can be but is not limited to an integrally formed structure.

[0033] In some embodiments, the first door panels 221 and the second door panels 222 of the plurality of door panels are staggered and connected to each other, for example, they can be connected by bonding or welding, or the two first door panels 221 and the two second door panels 222 are an integrally formed structure. The first door panels 221 and the second door panels 222 also have a folding edge 223 at the connection, so that the first door panels 221 and the second door panels 222 are bent and connected to correspond to the outer contour of the frame 21. In this way, one side of the two first door panels 221 and the two second door panels 222 can be connected to the periphery of the frame 21, and the other side can be inclined and extended from the frame 21 toward the dust outlet 23. For example, the frame 21 is rectangular, the dust exhaust port 23 is arranged at the relatively lower part of the frame 21, the two first door panels 221 are connected to the two relatively long sides of the frame 21, the two second door panels 222 are connected to the two relatively short sides of the frame 21, and are respectively extended obliquely from the frame 21 toward the dust exhaust port 23 to form four guiding slopes and constitute a conical guiding structure, so that the dust, dirt and debris in the box body 10 can be easily guided to the dust exhaust port 23 located below it along the direction of gravity and the guiding effect of the guiding slopes on the multiple door panels.

[0034] In some embodiments of the present application, an assembly port 12 is further provided on one side of the box body 10. For example, the assembly port 12 is provided at the bottom of the box body 10 and is communicated with the dust inlet 11 provided on the side of the box body 10. The frame 21 of the dust duct 20 is detachably provided in the assembly port 12, and when the frame 21 is assembled to the assembly port 12, the first door sheet 221 and the second door sheet 222 can cover the assembly port 12 below the assembly port 12 to prevent dust, dirt and debris from falling out of the box body 10.

[0035] In some embodiments, a plurality of frames 13 are further provided in the box body 10, the plurality of frames 13 surround the edge of the assembly opening 12, and a plurality of positioning holes 14 are provided on each frame 13. In addition, a plurality of stoppers 211 are provided on the periphery of the frame body 21 to be correspondingly engaged in the plurality of positioning holes 14. For example, the assembly opening 12 and the frame body 21 are rectangular structures that can cooperate with each other, four frames 13 are provided on the assembly opening 12, and the plurality of stoppers 211 protrude from the four sides of the frame body 21.

[0036] In addition, the limiting portion 211 includes a connected supporting section 2111 and an elastically deformable stop section 2112. The supporting section 2111 is connected between the frame 21 and the stop section 2112, and the outer diameter of the supporting section 2111 is smaller than the aperture of the positioning hole 14, and the stop section 2112 radially protrudes from one end of the supporting section 2111 and is larger than the aperture of the positioning hole 14. During assembly, the supporting section 2111 is inserted into the positioning hole 14, and the stop section 2112 passes through the positioning hole 14 through elastic deformation, and after passing through the positioning hole 14, the frame 13 is clamped between the frame 21 and the stop section 2112, so that the frame 21 is fixed to the bottom of the box body 10.

[0037] In terms of the choice of manufacturing materials, the box body 10 can be made of hard materials, such as hard plastic, so that the box body 10 has sufficient firmness and durability to store garbage and provide a stable installation for the frame 21. The frame 21 can be, but is not limited to, a soft material, such as rubber and silicone. By utilizing the characteristics of these soft materials that can be elastically deformed but have appropriate support, the frame 21 and the assembly port 12 can be made with a slight error, and the frame 21 can be elastically deformed to achieve rapid assembly. In addition, the limit portion 211 and the frame 21 can also be an integrally formed structure, such as manufactured by injection molding or other molding processes, which further simplifies the manufacturing process and enhances the convenience of assembly and disassembly.

[0038] Of course, in other possible embodiments, the assembly opening 12 and the frame 21 can also be fixed by screwing during assembly. For example, multiple screws are inserted through the frame 21 and the assembly opening 12 to lock the frame 21 on the box body 10 .

[0039] In other embodiments of the present application, the base station 70 includes a main body 70A and a docking station 70B. One end of the docking station 70B is connected to the main body 70A, and the other end extends horizontally outward from the bottom of the main body 70A, and a dust collection port 71 is provided on its top surface. In this way, when the self-moving robot 200 is docked at the base station 70, the docking station 70B can extend into the bottom of the self-moving robot 200, so that the dust discharge port 23 overlaps with the dust collection port 71 in the projection direction of the dust channel groove 20, and the dust discharge port 23 can be smoothly opened under the suction of the fan 72, and garbage such as dust, dirt and debris can be brought into the base station 70 for cleaning.

[0040] It is understandable that, since the multiple door pieces are separated from each other by the suction of the fan 72 and the dust discharge port 23 is opened, the multiple door pieces can only be pulled by the suction force in the portion corresponding to the dust collection port 71. In other words, the size of the opening of the dust discharge port 23 when it is opened can be adaptively adjusted as the overlapping range of the dust discharge port 23 and the dust collection port 71 changes. For example, when the position of the self-mobile robot 200 docked at the base station 70 is offset, the dust collection port 71 can still correspond to part of the dust discharge port 23, and drive the dust discharge port 23 to be partially opened to achieve the effect of dust discharge from the dust box 200B. When the dust discharge port 23 completely corresponds to the dust collection port 71, the dust discharge port 23 can be fully opened, that is, opened to the maximum, so that the base station 70 has a better dust collection effect.

[0041] Therefore, the elastically deformable configuration of the dust channel groove 20 of the dust box 200B in the embodiment of the present application improves the flexibility of the self-moving robot 200 when docking at the base station 70, allowing the self-moving robot 200 to effectively open part of the dust outlet 23 when slightly deviating from the base station 70. In addition, through the inclined guiding design of multiple door panels, the dust, dirt, debris and other garbage in the dust box 200B can be easily guided to the dust outlet 23, so the dust outlet 23 only needs to be partially opened to allow the garbage to be driven to the base station 70 under the action of suction, which greatly reduces the accuracy requirements when the self-moving robot docks at the base station, while not affecting the effect of guiding the garbage to the base station 70.

[0042] The technical solution in the embodiments of the present application is described in detail below in conjunction with specific application scenarios.

[0043] Application scenario 1. When the self-moving robot 200 is parked at the base station 70, the dust outlet 23 and the dust collection outlet 71 at least partially overlap, and the suction force of the fan 72 drives the multiple door panels to be stretched and separated from each other. At this time, the dust outlet 23 is opened, allowing dust, dirt and debris to be brought into the base station 70 for cleaning under the suction force of the airflow generated by the fan 72.

[0044] Application scenario 2. When the self-moving robot 200 leaves the base station 70, or the fan 72 is not in operation, the multiple door panels, without external force, are in a contracted state and close to each other due to the elastic force of the material itself, and the dust outlet 23 is closed, so that dust, dirt, debris and other garbage are sealed in the dust box 200B, preventing the garbage from being scattered during the movement of the self-moving robot 200.

[0045] As can be seen from the above description, the embodiment of the present application forms a dust discharge port through multiple elastically deformable door panels, which are elastically deformed under the suction of the fan to open the dust discharge port, bringing dust, dirt and debris into the base station for cleaning. At the same time, when the suction stops, the dust discharge port is automatically closed, which effectively improves the convenience of operation. In addition, the dust discharge port only needs to partially overlap with the dust collection port to achieve the dust collection effect, greatly reducing the accuracy requirements when the self-propelled robot is docked at the base station, and solving the problems of the existing one-way door being unable to open without alignment, or reducing the size of the one-way door and affecting the dust collection efficiency.

[0046] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A cleaning device, characterized in that: include: A base station is provided with a dust collection port and a fan; as well as The self-moving robot is provided with a dust box, the dust box comprises a box body and a dust channel groove, the box body is provided with a dust inlet, the dust channel groove is provided with a dust outlet connected to the dust inlet, wherein the dust channel groove comprises a frame body and a plurality of elastically deformable door sheets, one side of the plurality of door sheets is connected to the frame body, the other sides of the plurality of door sheets are close to each other in a contracted state to close the dust outlet, and are separated from each other in a stretched state to open the dust outlet; Wherein, when the self-moving robot docks at the base station, the dust duct groove corresponds to the dust collection port, and under the suction force of the fan, at least part of the multiple door panels are pulled to the stretched state, connecting the dust exhaust port and the dust collection port.

2. The cleaning device according to claim 1, characterized in that One side of the plurality of door sheets is disposed around the periphery of the frame body, and the other side is obliquely extended from the frame body toward the dust exhaust port.

3. The cleaning device according to claim 2, characterized in that The plurality of door panels include two first door panels and two second door panels, which are staggered and connected to each other and have folded edges at the connection positions.

4. The cleaning device according to claim 1, characterized in that One side of the box body is provided with an assembly opening, the frame body is detachably arranged in the assembly opening, and the plurality of door sheets shield the assembly opening.

5. The cleaning device according to claim 4, characterized in that The box body is provided with a plurality of frames surrounding the assembly opening, and each frame has a plurality of positioning holes. The periphery of the frame body is provided with a plurality of limiting parts correspondingly engaged in the plurality of positioning holes.

6. The cleaning device according to claim 5, characterized in that The limiting portion includes a connected supporting segment and an elastically deformable stopping segment, the supporting segment is connected between the frame body and the stopping segment, the stopping segment passes through the positioning hole, and the frame is clamped between the frame body and the stopping segment.

7. The cleaning device according to claim 1, characterized in that The base station includes a main body and a docking dock, one end of the docking dock is connected to the main body, and the other end extends outward and is provided with the dust collection port. When the self-moving robot docks at the base station, the docking dock extends into the bottom of the self-moving robot, and the dust exhaust port overlaps with the dust collection port in the projection direction of the dust duct groove.

8. The cleaning device according to claim 7, characterized in that The diameter of the dust discharge port when it is opened can be adaptively adjusted as the overlapping range of the dust discharge port and the dust collection port changes.

9. A cleaning device, characterized in that: include: A base station is provided with a dust collection port and a fan; as well as The self-propelled robot is provided with a dust channel groove at the bottom, the dust channel groove comprises a plurality of elastically deformable door pieces, one side of the plurality of door pieces is connected to the bottom, the other sides of the plurality of door pieces are separated from each other in a stretched state to form a dust discharge port connected to the dust collection port, and the plurality of door pieces are brought together in a contracted state to close the dust discharge port; Among them, when the self-moving robot docks at the base station, the dust exhaust port and the dust collection port at least partially overlap, and under the suction force of the fan, at least part of the multiple door panels are pulled to the stretched state, thereby connecting the dust exhaust port and the dust collection port.

10. A self-propelled robot, characterized in that: A dust box is provided, which includes a box body and a dust chute groove, the box body is provided with a dust inlet, and the dust chute groove is provided with a dust exhaust port connected to the dust inlet, wherein the dust chute groove includes a frame body and a plurality of elastically deformable door pieces, one side of the plurality of door pieces is connected to the frame body, and the other sides are close to each other in a contracted state to close the dust exhaust port, and are separated from each other in a stretched state to open the dust exhaust port.

11. The self-moving robot according to claim 10, characterized in that: One side of the multiple door panels is arranged around the periphery of the frame, and the other side is extended obliquely from the frame toward the dust exhaust port, wherein the multiple door panels include two first door panels and two second door panels, which are staggered and connected to each other, and have folded edges at the connection points.

12. The self-moving robot according to claim 10, characterized in that: One side of the box body is provided with an assembly opening, the frame body is detachably arranged in the assembly opening, and the plurality of door sheets shield the assembly opening.

13. The self-moving robot according to claim 12, characterized in that: The box body is provided with a plurality of frames surrounding the assembly opening, and each frame has a plurality of positioning holes. The periphery of the frame body is provided with a plurality of limiting parts correspondingly engaged in the plurality of positioning holes.

14. The self-moving robot according to claim 13, characterized in that: The limiting portion includes a connected supporting segment and an elastically deformable stopping segment, the supporting segment is connected between the frame body and the stopping segment, the stopping segment passes through the positioning hole, and the frame is clamped between the frame body and the stopping segment.

15. A dust box of a self-moving robot, characterized in that: include: The box body is provided with a dust inlet; and A dust duct groove is provided with a dust exhaust port connected to the dust inlet, and the dust duct groove includes a frame and a plurality of elastically deformable door panels, the frame is provided on the box body, one side of the plurality of door panels is connected to the frame, and the other sides are close to each other in a contracted state to close the dust exhaust port, and are separated from each other in a stretched state to open the dust exhaust port.

16. The dust box according to claim 15, characterized in that: One side of the plurality of door sheets is disposed around the periphery of the frame body, and the other side is obliquely extended from the frame body toward the dust exhaust port.

17. The dust box according to claim 16, characterized in that: The plurality of door panels include two first door panels and two second door panels, which are staggered and connected to each other and have folded edges at the connection positions.

18. The dust box according to claim 15, characterized in that: One side of the box body is provided with an assembly opening, the frame body is detachably arranged in the assembly opening, and the plurality of door sheets shield the assembly opening.

19. The dust box according to claim 18, characterized in that: The box body is provided with a plurality of frames surrounding the assembly opening, and each frame has a plurality of positioning holes. The periphery of the frame body is provided with a plurality of limiting parts correspondingly engaged in the plurality of positioning holes.

20. The dust box according to claim 19, characterized in that: The limiting portion includes a connected supporting segment and an elastically deformable stopping segment, the supporting segment is connected between the frame body and the stopping segment, the stopping segment passes through the positioning hole, and the frame is clamped between the frame body and the stopping segment.

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