Dust box and cleaning device

Abstract

This utility model discloses a dust box and cleaning device. The dust box includes a box body and a HEPA filter replacement mechanism. The box body is provided with a dust collection chamber, a suction port, and an air outlet, both of which are connected to the dust collection chamber. The HEPA filter replacement mechanism is disposed in the box body and located outside the dust collection chamber. The HEPA filter replacement mechanism includes a power component, a HEPA filter unwinding component, and a guide and positioning component. The HEPA filter unwinding component is used to release and wind the HEPA filter, the power component is used to drive the HEPA filter unwinding component to move to release and wind the HEPA filter, and the guide and positioning component is disposed at the edge of the air outlet to ensure that the HEPA filter released by the HEPA filter unwinding component at least covers the air outlet. The dust box and cleaning device of this application can solve the problems of long HEPA filter replacement cycle and cumbersome operation of dust boxes.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and more specifically, to a dust box and a cleaning device. Background Technology

[0002] Currently, the HEPA filter in the dustbin of cleaning devices such as sweepers not only traps particulate matter but also dust. Accumulated dust and particulate matter increase the air resistance of the HEPA filter, reducing the airflow of the dustbin. Therefore, the HEPA filter needs to be replaced after a period of use. Existing technology typically involves manual replacement, which is time-consuming, cumbersome, and fails to meet user needs. Utility Model Content

[0003] The main purpose of this utility model is to provide a dust box and cleaning device to at least solve the problems of long HEPA filter replacement cycle and cumbersome operation of the dust box.

[0004] According to one aspect of the present invention, a dust box is provided, comprising:

[0005] The box body is provided with a dust collection chamber, a dust suction port and an air outlet, and the dust suction port and the air outlet are both connected to the dust collection chamber;

[0006] The HEPA filter replacement mechanism is disposed in the housing and located outside the dust collection chamber. The HEPA filter replacement mechanism includes a power component, a HEPA filter unwinding component, and a guide and positioning component. The HEPA filter unwinding component is used to release and wind the HEPA filter. The power component is used to drive the HEPA filter unwinding component to move to release and wind the HEPA filter. The guide and positioning component is disposed at the edge of the air outlet so that the HEPA filter released by the HEPA filter unwinding component covers the air outlet.

[0007] Furthermore, the dust box also includes a positioning part, which is located outside the dust collection chamber and near the air outlet. The HEPA unwinding component includes:

[0008] The first bracket and the second bracket are installed at intervals on the positioning part and are respectively located on opposite sides of the air outlet;

[0009] The system includes a release roller and a take-up roller, wherein the release roller is rotatably fitted onto the first support, and the take-up roller is rotatably fitted onto the second support. The HEPA filter is wound around the release roller and released from the release roller to wind around the take-up roller. The power unit is drivenly connected to the take-up roller to drive the take-up roller to rotate.

[0010] Furthermore, the second bracket is provided with an installation cavity, and the end of the winding roller is provided with a fixing cover, and the fixing cover is provided with an oblong hole;

[0011] The power component includes a motor, which is installed in the mounting cavity. The output shaft of the motor is provided with a flat shaft section that is adapted to the oblong hole, and the flat shaft section is inserted into the oblong hole.

[0012] Furthermore, the guiding and positioning component includes at least two guiding and positioning rods, which are respectively disposed on the edges of opposite sides of the air outlet. The guiding and positioning rods are fixed to the positioning part, and the length direction line of the guiding and positioning rods is parallel to the plane where the air outlet is located. The HEPA filter between the release roller and the take-up roller is wound around the guiding and positioning rods and supported and positioned by the guiding and positioning rods to cover the air outlet.

[0013] Furthermore, the guide positioning rod includes at least one of a plastic rod and a hinge pin.

[0014] Furthermore, the dust box also includes a pressing device, which is disposed on the outside of the dust collection chamber to apply pressure to the HEPA filter so that the HEPA filter is sealed and fitted to the outer peripheral side of the air outlet.

[0015] Furthermore, the clamping device includes:

[0016] A clamping part is provided on the side of the HEPA filter that is away from the air outlet;

[0017] An elastic element, at least one of the elastic elements is disposed on the side of the pressing part away from the air outlet and abuts against the pressing part.

[0018] Furthermore, at least one rolling part is provided on the side of the clamping part near the HEPA filter.

[0019] Furthermore, the box body includes a main body and a cover. The dust collection chamber, the air outlet, and the dust suction port are all disposed on the main body. The cover is disposed on the main body and surrounds the outer side wall of the main body to form a cavity. The HEPA filter replacement mechanism is disposed in the cavity. When the cover is fastened to the main body, it presses against the elastic element, causing the pressing part to apply pressure to the HEPA filter.

[0020] Furthermore, the pressing device also includes a pressing block, which is installed on the side of the HEPA filter away from the air outlet, and an elastic deformable body is provided on the side of the pressing block close to the HEPA filter.

[0021] Furthermore, the pressing device also includes a mounting part, which is disposed outside the dust collection chamber and near the air outlet, and the pressing block is detachably connected to the mounting part.

[0022] Furthermore, the mounting part is provided with a guide groove, the extension direction line of the guide groove is parallel to the plane where the air outlet is located, and the pressure block is detachably mounted on the mounting part through the guide groove.

[0023] Furthermore, the pressure block is provided with a slide bar portion for cooperating with the guide groove. The slide bar portion has an insertion end and an insertion end opposite to the insertion end. The surface of the insertion end is provided with a protrusion, and the insertion end is interference-fitted with the guide groove through the protrusion.

[0024] On the other hand, this application also discloses a cleaning device, which includes the dust box described above.

[0025] The technical solution of this utility model can achieve at least the following technical effects:

[0026] The dust box in this application is equipped with a HEPA filter replacement mechanism. When the HEPA filter needs to be replaced, simply controlling the power unit to activate it drives the HEPA filter unwinding component. During this process, the unwinding component rolls up the HEPA filter covering the air outlet and releases a new HEPA filter towards the outlet. Simultaneously, a guide and positioning component located at the edge of the air outlet positions and guides the HEPA filter released by the unwinding component, ensuring that the new HEPA filter covers the air outlet, thus completing the HEPA filter replacement.

[0027] It is evident that the HEPA replacement mechanism in this application can automatically replace the HEPA at the appropriate time, with a short replacement cycle, simple and quick operation, and easy to meet people's usage needs. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 This is a three-dimensional structural diagram of a dust box disclosed in an embodiment of the present utility model;

[0030] Figure 2 for Figure 1 First exploded view of the dust box in the image;

[0031] Figure 3 for Figure 2 A magnified view of region M in the image;

[0032] Figure 4 for Figure 1 Second exploded view of the dust box;

[0033] Figure 5 This is a three-dimensional structural diagram of the pressing block disclosed in an embodiment of this utility model;

[0034] Figure 6 for Figure 1 A cross-sectional view of the dustbin in the middle;

[0035] Figure 7 This is a perspective structural diagram of another dust box disclosed in an embodiment of the present utility model;

[0036] Figure 8 for Figure 7 An exploded view of the dustbin in the container;

[0037] Figure 9 for Figure 7 A three-dimensional structural diagram of the clamping device in the middle;

[0038] Figure 10 for Figure 7 Front view of the clamping device in the middle;

[0039] Figure 11 for Figure 10 BB section view in the middle.

[0040] The above figures include the following reference numerals:

[0041] 10. Box body; 11. Main body; 111. Dust collection chamber; 112. Dust suction port; 113. Air outlet; 12. Cover; 101. Cavity; 20. HEPA filter replacement mechanism; 21. Power component; 211. Motor; 2111. Output shaft; 2112. Flat shaft section; 22. HEPA filter unwinding component; 221. First bracket; 222. Second bracket; 2221. Mounting cavity; 223. Release roller; 224. Take-up roller; 2241. Fixed cover; 2242. 23. Waist-shaped hole; 231. Guide positioning component; 24. Guide positioning rod; 30. HEPA filter; 40. Positioning part; 41. Pressing device; 42. Pressing part; 43. Elastic element; 44. Rolling part; 45. Hollowed-out part; 45. Pressing block; 451. Hand-held part; 452. Hollowed-out space; 453. Protrusion; 454. Stop part; 455. Sliding part; 4551. Insertion end; 4552. Insertion end; 46. Elastic deformable body; 47. Mounting part; 471. Guide groove. Detailed Implementation

[0042] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0045] As mentioned in the background section, existing technologies typically employ manual operation to replace HEPA filters, resulting in long replacement cycles, cumbersome operation, and difficulty in meeting user needs. Therefore, this application provides a novel dust box that enables automatic HEPA filter replacement, offering simple operation and ease of use. The dust box of this application will be described in detail below with reference to the accompanying drawings.

[0046] See Figures 1 to 11 As shown, according to an embodiment of this application, a dust box is provided, comprising a box body 10 and a HEPA filter replacement mechanism 20. The box body 10 is provided with a dust collection chamber 111, a suction port 112, and an air outlet 113, both of which communicate with the dust collection chamber 111. The HEPA filter replacement mechanism 20 is disposed on the box body 10 and located outside the dust collection chamber 111. The HEPA filter replacement mechanism 20 includes a power component 21, a HEPA filter unwinding component 22, and a guide positioning component 23. Specifically, the HEPA filter unwinding component 22 is used to release and wind HEPA filter 24, the power component 21 is used to drive the HEPA filter unwinding component 22 to move to release and wind HEPA filter 24, and the guide positioning component 23 is disposed at the edge of the air outlet 113 to ensure that the HEPA filter 24 released by the HEPA filter unwinding component 22 covers the air outlet 113.

[0047] In actual use, the dust box can be installed on cleaning devices such as sweepers, floor scrubbers, and vacuum cleaners. During operation, a suction component, such as a vacuum pump, is used to draw air from the outlet 113 into the dust collection chamber 111, creating a negative pressure state. At this time, external debris can be drawn into the dust collection chamber 111 from the suction port 112. After the dust box has been used for a period of time, the particles and dust adsorbed by the HEPA filter 24 covering the outlet 113 will increase the air resistance of the HEPA filter 24 and reduce the ventilation of the dust box, requiring the HEPA filter to be replaced. In this embodiment, the dust box is equipped with a HEPA filter replacement mechanism 20. When the HEPA filter 24 needs to be replaced, the power component 21 is controlled to operate, which drives the HEPA filter unwinding component 22 to move. During this process, the HEPA filter unwinding component 22 can roll up the HEPA filter 24 covering the outlet 113 and release a new HEPA filter 24 towards the outlet 113. At the same time, the guide and positioning component 23 located at the edge of the air outlet 113 can position and guide the HEPA 24 released by the HEPA unwinding component 22, so that the new HEPA 24 released by the HEPA unwinding component 22 covers the air outlet 113, and finally completes the replacement of the HEPA 24.

[0048] As can be seen, the HEPA replacement mechanism 20 in this embodiment can automatically replace the HEPA 24 at the appropriate time, with a short replacement cycle, simple and quick operation, which can meet people's usage needs.

[0049] Combination Figures 2 to 9 As shown, to facilitate the installation of the HEPA unwinding component 22, the dust box in this embodiment also includes a positioning part 30, which is located outside the dust collection chamber 111 and near the air outlet 113 (e.g., Figure 4 (As shown in the diagram). The HEPA unwinding component 22 includes a first bracket 221, a second bracket 222, a release roller 223, and a take-up roller 224. The first bracket 221 and the second bracket 222 are spaced apart and installed on opposite sides of the positioning part 30, respectively, at the air outlet 113. The release roller 223 is rotatably fitted onto the first bracket 221, and the take-up roller 224 is rotatably fitted onto the second bracket 222. The HEPA filter 24 is wound around the release roller 223 and released from the release roller 223 to wind around the take-up roller 224. The power component 21 is drivenly connected to the take-up roller 224 to drive the take-up roller 224 to rotate.

[0050] With this configuration, when the power unit 21 drives the winding roller to rotate, the HEPA filter 24 can be wound onto the winding roller 224. During this process, the release roller 223 is pulled by the HEPA filter 24 and rotates on the first support 221, thereby releasing the HEPA filter 24. That is to say, when the power unit 21 rotates, it can drive the winding roller 224 to rotate on the second support 222 to achieve the winding of the old HEPA filter 24, and at the same time drive the release roller 223 to rotate on the first support 221 to achieve the release of the new HEPA filter 24. During this process, the guide and positioning component 23 positions and guides the HEPA filter 24 released by the release roller 223, so that the new HEPA filter 24 released by the HEPA filter unwinding component 22 covers the air outlet 113, and finally completes the replacement of the HEPA filter 24.

[0051] Optionally, the positioning part 30 in this embodiment can be a mounting plate, a mounting block, or a mounting bracket of other shapes. Any other variation of the concept of this application is within the protection scope of this application.

[0052] Optionally, both the first bracket 221 and the second bracket 222 are cylindrical or cylindrical structures, with the central axis of the cylindrical or cylindrical structure parallel to the plane where the air outlet 113 is located. The first bracket 221 and the second bracket 222 are fixed to the positioning part 30 by means of screws, pins, clips, welding, etc. In this embodiment, it is preferable to set the first bracket 221 and the second bracket 222 as cylindrical. In this way, the weight of the first bracket 221 and the second bracket 222 can be reduced for the same volume, and it is convenient to install the power component 21, which facilitates the miniaturization and lightweight design of the dust box.

[0053] Specifically, to facilitate the installation of the power component 21, the second bracket 222 in this embodiment is provided with an installation cavity 2221. When the second bracket 222 is configured as a cylindrical structure, the installation cavity 2221 is the internal cavity of the cylindrical structure. Correspondingly, the end of the take-up roller 224 is provided with a fixing cover 2241, which has an oblong hole 2242. After the take-up roller 224 is fitted onto the second bracket 222, the fixing cover 2241 can cover the end of the second bracket 222 away from the positioning part 30, thus preventing dust and other contaminants from entering the installation cavity 2221. Further, the power component 21 includes a motor 211 installed in the installation cavity 2221. The output shaft 2111 of the motor 211 is provided with a flat shaft section 2112 that is adapted to the oblong hole 2242, and the flat shaft section 2112 is inserted into the oblong hole 2242.

[0054] In this embodiment, by placing the motor 211 inside the mounting cavity 2221, after the take-up roller 224 is mounted on the second bracket 222, the take-up roller 224 can cover the outer periphery of the second bracket 222 and the motor 211. Simultaneously, the fixing cap 2241 at the end of the take-up roller 224 can cover the side of the second bracket 222 facing away from the positioning part 30. With this configuration, after the motor 211 is installed, it can be placed in a relatively enclosed mounting space, making it less susceptible to interference from the external environment and resulting in better stability.

[0055] In actual operation, the motor 211 can be started at appropriate time points in conjunction with the corresponding control program. When the motor 211 is working, the flat shaft section 2112 of the motor 211 rotates, which can drive the fixed cover 2241 and the winding roller 224 to rotate, thereby driving the winding roller 224 to rotate to wind up the HEPA 24. At the same time, the release roller 223 is rotated by the pull of the HEPA 24 to release a new HEPA 24. The structure is simple and easy to control. It is understood that the rotation direction of the motor 211 in this application can be counterclockwise or clockwise, depending on the winding method of the HEPA 24. Figure 2 and Figure 4 As shown, in this embodiment, the release and rewind of the HEPA filter 24 are achieved by rotating the motor 211 in a clockwise direction.

[0056] Furthermore, the guide positioning component 23 in this embodiment includes at least two guide positioning rods 231, such as two, three, four, or five, etc., as per the appendix of this application. Figure 2 and Figure 4 The diagram shows the case where there are two guide positioning rods 231. Specifically, in this embodiment, at least two guide positioning rods 231 are respectively disposed on the opposite edges of the air outlet 113. The guide positioning rods 231 are fixed to the positioning part 30, and the length direction line of the guide positioning rods 231 is parallel to the plane where the air outlet 113 is located. The HEPA filter 24 between the release roller 223 and the take-up roller 224 is wound around the guide positioning rods 231 and is supported and positioned by the guide positioning rods 231 to cover the air outlet 113.

[0057] In this embodiment, at least two guide positioning rods 231 are provided, and these at least two guide positioning rods 231 are respectively positioned on opposite sides of the air outlet 113. After installation, the length direction of the guide positioning rod 231 is parallel to the plane where the air outlet 113 is located. When the HEPA filter 24 between the release roller 223 and the take-up roller 224 passes around the guide positioning rods 231 on both sides of the air outlet 113, it can be supported and positioned by the guide positioning rods 231 and cover the air outlet 113. With the driving action of the motor 211, the release and take-up of the HEPA filter 24 can be quickly realized, and finally the replacement of the HEPA filter 24 at the air outlet 113 is completed.

[0058] Optionally, the guide positioning rod 231 in this embodiment includes at least one of a plastic rod and a hinge pin. When the guide positioning rod 231 is a plastic rod, it can be integrally formed with the positioning part 30, or it can be separately formed and then fixed to the positioning part 30 by means of screwing, welding, or snap-fitting. When the guide positioning rod 231 is a hinge pin, the hinge pin can be connected to the positioning part 30 simply by the action of the external thread at the end of the hinge pin. Of course, in other embodiments of this application, the guide positioning rod 231 can also be a rod-shaped structure of other materials. Any other variations within the concept of this application are within the protection scope of this application.

[0059] To improve the sealing performance between HEPA 24 and air outlet 113, see Figures 2 to 5 ,as well as Figures 7 to 9 As shown, the dust box in this embodiment also includes a pressing device 40, which is disposed on the outside of the dust collection chamber 111 to apply pressure to the HEPA filter 24 so that the HEPA filter 24 is sealed and fitted to the outer peripheral side of the air outlet 113.

[0060] See Figures 7 to 9 As shown, in one embodiment of this application, the pressing device 40 includes a pressing part 41 and an elastic member 42. The pressing part 41 is disposed on the side of the HEPA filter 24 away from the air outlet 113; the elastic member 42 is disposed on the side of the pressing part 41 away from the air outlet 113 and abuts against the pressing part 41. That is, by applying a resisting force from the side of the pressing part 41 away from the air outlet 113 through the elastic member 42, the pressing part 41 can be pressed against the HEPA filter 24 at the air outlet 113, thereby sealing the gap between the edge of the air outlet 113 and the HEPA filter 24, preventing the leakage of garbage in the dust collection chamber 111 from the gap between the HEPA filter and the air outlet 113.

[0061] Meanwhile, in this embodiment, the elastic element 42 applies pressure to the pressing part 41. When the motor 211 drives the winding roller 224 to rotate to wind and release the HEPA 24, the elastic element 42 can provide a certain buffering force to the pressing part 41, preventing the pressing part 41 from squeezing the HEPA 24 too tightly, which would make it difficult to wind and release the HEPA 24. This can, to a certain extent, prevent the HEPA 24 from tearing or breaking during the winding and releasing process.

[0062] Optionally, the elastic element 42 in this embodiment can be a spring, an elastic column, or a torsion spring, etc. Any other variation within the scope of this application's concept is within the protection scope of this application. Furthermore, the elastic element 42 in this embodiment can be one, two, three, or more. The accompanying drawings of this application show the case where there are four elastic elements 42. These four elastic elements 42 are evenly arranged along the outer periphery of the pressing part 41, facilitating the pressing part 41 to press the HEPA filter 24 towards the air outlet 113.

[0063] In order to facilitate the limiting of the elastic element 42, the pressing part 41 in this embodiment can be provided with a positioning post, positioning protrusion or other structure. In actual installation, the elastic element 42 is sleeved on the positioning post or positioning protrusion, which facilitates the limiting of the elastic element 42 and can improve the structural stability of the dust box in this embodiment to a certain extent.

[0064] Furthermore, in this embodiment, a rolling part 43 is provided on the side of the pressing part 41 near the HEPA 24. For example, the rolling part 43 includes at least one roller. Thus, when the motor 211 drives the take-up roller 224 to rotate to wind and unwind the HEPA 24, the rolling part 43 can effectively reduce the friction between the pressing part 41 and the HEPA 24, making it easier to wind and unwind the HEPA 24 and enabling quick replacement of the HEPA 24 at the air outlet 113.

[0065] For example, the pressing part 41 in this embodiment includes, but is not limited to, pressing plates, pressing blocks, and other structures. In order to facilitate the flow of air from the air outlet 113, the pressing part 41 in this embodiment is provided with a hollow part 44 at the part corresponding to the air outlet 113. Through the function of the hollow part 44, it is convenient to suck up the dust collection chamber 111 so that garbage and other objects can enter the dust collection chamber 111 from the suction port 112.

[0066] Furthermore, in this embodiment, the box 10 includes a main body 11 and a cover 12. The dust collection chamber 111, the air inlet, and the dust suction port 112 are all disposed on the main body 11. The cover 12 covers the main body 11 and forms a cavity 101 with the outer side wall of the main body 11. The HEPA filter replacement mechanism 20 is disposed in the cavity 101. The two ends of the elastic member 42 abut against the cover 12 and the pressing part 41, respectively. When the cover 12 is fastened to the main body 11, it can press against the elastic member 42, so that the pressing part 41 applies pressure to the HEPA filter 24. That is, when the cover 12 is fastened to the main body 11, the cover 12 can press against the elastic member 42. At this time, the elastic member 42 is compressed between the cover 12 and the pressing part 41, and can apply an elastic abutting force to the pressing part 41.

[0067] See Figures 2 to 6As shown, in other embodiments of this application, the pressing device 40 further includes a pressing block 45, which is installed on the side of the HEPA filter 24 away from the air outlet 113. An elastic deformable body 46 is provided on the side of the pressing block 45 closest to the HEPA filter 24, and this elastic deformable body 46 abuts against the HEPA filter 24. That is, through the action of the elastic deformable body 46, the HEPA filter 24 can be pressed down, thereby sealing the gap between the edge of the air outlet 113 and the HEPA filter 24, preventing debris in the dust collection chamber 111 from leaking from the gap between the HEPA filter and the air outlet 113.

[0068] Furthermore, in this embodiment, the elastic deformable body 46 applies pressure to the HEPA 24. When the motor 211 drives the winding drum 224 to rotate to wind and unwind the HEPA 24, the elastic deformable body 46 can undergo elastic deformation, which prevents the elastic deformable body 46 from being crushed and making it difficult to wind and unwind the HEPA 24. This can, to a certain extent, prevent the HEPA 24 from tearing or breaking during the winding and unwinding process.

[0069] Optionally, the elastic deformable body 46 in this embodiment includes at least one of a spring sheet and elastic foam. In actual production, the elastic deformable body 46 can be installed and fixed on the pressure block 45 by means of adhesive bonding, snap-fit, screw connection, etc.

[0070] Furthermore, the pressing device 40 also includes a mounting part 47, which is disposed outside the dust collection chamber 111 and near the air outlet 113. The pressing block 45 is detachably connected to the mounting part 47. With this configuration, when the HEPA filter 24 is replaced, the pressing block 45 can be disassembled according to the actual usage. Optionally, the mounting part 47 in this embodiment can be a mounting block, a mounting plate, or other regular or irregular structure, as long as it is a structure that can install and support the pressing block. No specific limitation is made in this application.

[0071] See Figures 2 to 5 As shown, the mounting part 47 in this embodiment is provided with a guide groove 471. The extension direction line of the guide groove 471 is parallel to the plane where the air outlet 113 is located. The pressure block 45 is detachably mounted on the mounting part 47 through the guide groove 471. This arrangement facilitates the assembly and disassembly of the pressure block 45.

[0072] Furthermore, the pressure block 45 in this embodiment is also provided with a handle 451. The handle 451 facilitates the operation of the pressure block 45 for assembly and disassembly. For example, the handle 451 in this embodiment can be a handle through hole, a handle protrusion, etc. Any other variation within the concept of this application is within the protection scope of this application.

[0073] Furthermore, in this embodiment, the pressure block 45 is provided with a slide bar portion 455 for engaging with the guide groove 471. The slide bar portion 455 has an insertion end 4551 and an insertion end 4552 opposite to the insertion end. The surface of the insertion end 4552 is provided with a protrusion 453, and the insertion end 4552 is press-fitted with the guide groove 471 through the protrusion 453. When the pressure block 45 is actually installed, the insertion end 4551 of the slide bar portion 455 is inserted into the guide groove 471, and then a force is applied to the pressure block 45, so that the slide bar portion 455 slides completely into the guide groove 471. After the slide bar portion 455 slides into place, the protrusion 453 on the surface of the insertion end 4552 of the slide bar portion 455 is press-fitted with the guide groove 471. This setting can limit the pressure block 45 and prevent the pressure block 45 from sliding out or slipping out of the guide groove 471.

[0074] For example, in this embodiment there are two guide grooves 471, which are located on opposite sides of the air outlet 113. Correspondingly, there are also two slide bars 455, which are respectively arranged on opposite sides of the pressure block 45. The two slide bars 455 are arranged one-to-one with the two guide grooves 471 to facilitate the support and positioning of the pressure block 45.

[0075] Optionally, the pressure block 45 in this embodiment is provided with a stop 454. When the pressure block 45 is installed in place, the stop 454 stops at the end of the release roller 223 or the winding roller 224, which can position the pressure block 45 and, to a certain extent, prevent the pressure block 45 from being inserted too deeply along the guide groove 471, making it inconvenient to disassemble.

[0076] Furthermore, the pressure block 45 has a hollow space 452 located opposite the air outlet 113. This hollow space 452 facilitates the suction of the dust collection chamber 111, allowing debris to enter the dust collection chamber 111 from the suction port 112.

[0077] On the other hand, this application also provides a cleaning device, which includes, but is not limited to, floor scrubbers, sweepers, vacuum cleaners, and other electrical appliances that can use a dust box. This cleaning device includes the aforementioned dust box, and therefore, it incorporates all the technical effects of the aforementioned dust box. Since the technical effects of the dust box have already been described in detail above, they will not be repeated here.

[0078] Based on the above embodiments, it can be seen that the floor scrubbing machine of this utility model has at least the following technical effects:

[0079] The motor of the HEPA filter replacement mechanism 20 in this application can be periodically started by the main control board in conjunction with a timer to drive the take-up roller 224 to rotate. This causes the HEPA filter 24 to be wound clockwise onto the take-up roller 224. After being positioned by the guide and positioning component 23, the HEPA filter 24 covers the air outlet 113 area. The pressing device 40 presses the HEPA filter 24 to the air outlet 113 to ensure a seal, thereby drawing a clean, new HEPA filter 24 area into the air outlet 113 for air filtration. Therefore, the HEPA filter replacement mechanism 20 in this application can automatically replace the HEPA filter 24 at appropriate times, with a short replacement cycle, simple and quick operation, and a stable and reliable structure, easily meeting people's usage needs.

[0080] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0081] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0082] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dust box, characterized in that, include: The box body (10) is provided with a dust collection chamber (111), a dust suction port (112) and an air outlet (113), and the dust suction port (112) and the air outlet (113) are both connected to the dust collection chamber (111); The HEPA filter replacement mechanism (20) is disposed in the housing (10) and located outside the dust collection chamber (111). The HEPA filter replacement mechanism (20) includes a power component (21), a HEPA filter unwinding component (22), and a guide positioning component (23). The HEPA filter unwinding component (22) is used to release and wind HEPA filter (24). The power component (21) is used to drive the HEPA filter unwinding component (22) to move to release and wind HEPA filter (24). The guide positioning component (23) is disposed at the edge of the air outlet (113) so that at least the HEPA filter (24) released by the HEPA filter unwinding component (22) covers the air outlet (113).

2. The dust box according to claim 1, characterized in that, The dust box also includes a positioning part (30), which is located outside the dust collection chamber (111) and near the air outlet (113). The HEPA unwinding component (22) includes: The first bracket (221) and the second bracket (222) are installed at intervals on the positioning part (30) and are respectively located on opposite sides of the air outlet (113); The system includes a release roller (223) and a take-up roller (224), wherein the release roller (223) is rotatably mounted on the first bracket (221), and the take-up roller (224) is rotatably mounted on the second bracket (222). The HEPA filter (24) is wound around the release roller (223) and released from the release roller (223) and wound around the take-up roller (224). The power unit (21) is driven to the take-up roller (224) to drive the take-up roller (224) to rotate.

3. The dust box according to claim 2, characterized in that, The second bracket (222) is provided with an installation cavity (2221), and the end of the winding roller (224) is provided with a fixing cover (2241), and the fixing cover (2241) is provided with an oblong hole (2242); The power component (21) includes a motor (211), which is mounted in the mounting cavity (2221). The output shaft (2111) of the motor (211) is provided with a flat shaft section (2112) that is adapted to the waist-shaped hole (2242), and the flat shaft section (2112) is inserted into the waist-shaped hole (2242).

4. The dust box according to claim 2, characterized in that, The guide positioning component (23) includes at least two guide positioning rods (231). The at least two guide positioning rods (231) are respectively disposed on the edges of opposite sides of the air outlet (113). The guide positioning rods (231) are fixed to the positioning part (30). The length direction line of the guide positioning rods (231) is parallel to the plane where the air outlet (113) is located. The HEPA filter (24) between the release roller (223) and the take-up roller (224) is wound around the guide positioning rods (231) and supported and positioned by the guide positioning rods (231) to cover the air outlet (113).

5. The dust box according to claim 4, characterized in that, The guide positioning rod (231) includes at least one of a plastic rod and a hinge pin.

6. The dust box according to claim 1, characterized in that, The dust box also includes a pressing device (40), which is disposed on the outside of the dust collection chamber (111) to apply pressure to the HEPA filter (24) so ​​that the HEPA filter (24) is sealed and fitted to the outer peripheral side of the air outlet (113).

7. The dust box according to claim 6, characterized in that, The clamping device (40) includes: A clamping part (41) is provided on the side of the HEPA filter (24) away from the air outlet (113); An elastic element (42), at least one of the elastic elements (42) is disposed on the side of the pressing part (41) away from the air outlet (113) and abuts against the pressing part (41).

8. The dust box according to claim 7, characterized in that, The pressing part (41) is provided with at least one rolling part (43) on the side near the HEPA (24).

9. The dust box according to claim 7, characterized in that, The box body (10) includes a main body (11) and a cover (12). The dust collection chamber (111), the air outlet (113) and the dust suction port (112) are all located on the main body (11). The cover (12) covers the main body (11) and forms a cavity (101) with the outer side wall of the main body (11). The HEPA filter replacement mechanism (20) is located in the cavity (101). When the cover (12) is fastened to the main body (11), it presses against the elastic member (42) so that the pressing part (41) applies pressure to the HEPA filter (24).

10. The dust box according to claim 6, characterized in that, The pressing device (40) further includes a pressing block (45), which is installed on the side of the HEPA filter (24) away from the air outlet (113), and an elastic deformable body (46) is provided on the side of the pressing block (45) close to the HEPA filter (24).

11. The dust box according to claim 10, characterized in that, The pressing device (40) further includes a mounting part (47), which is located outside the dust collection chamber (111) and near the air outlet (113). The pressing block (45) is detachably connected to the mounting part (47).

12. The dust box according to claim 11, characterized in that, The mounting part (47) is provided with a guide groove (471), the extension direction line of the guide groove (471) is parallel to the plane where the air outlet (113) is located, and the pressure block (45) is detachably mounted on the mounting part (47) through the guide groove (471).

13. The dust box according to claim 12, characterized in that, The pressure block (45) is provided with a slide bar (455) for cooperating with the guide groove (471). The slide bar (455) has an insertion end (4551) and an insertion end (4552) opposite to the insertion end (4551). The surface of the insertion end (4552) is provided with a protrusion (453). The insertion end (4552) is interference-fitted with the guide groove (471) through the protrusion (453).

14. A cleaning device, characterized in that, The cleaning device includes the dust box according to any one of claims 1 to 13.

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