Dust box and cleaning system

Abstract

The utility model discloses a dust box and a cleaning system. The dust box comprises a box body, a filtering assembly and a cleaning part. Wherein a containing cavity is formed in the box body, a dust suction opening and a suction channel are formed in the side wall of the periphery of the box body, and the dust suction opening and the suction channel are both communicated with the containing cavity. The filtering assembly is arranged in the suction channel, the cleaning part is rotatably arranged in the containing cavity, and the cleaning part abuts against the end face, close to the containing cavity, of the filtering assembly. The dust box further comprises a rotating assembly and a compression shifting piece, the rotating assembly is rotatably arranged in the containing cavity, the compression shifting piece is arranged in the containing cavity and connected with the rotating assembly, and the cleaning part is arranged on the rotating assembly. According to the dust box and the cleaning system, the problem that in the prior art, after a dust box is used for a long time, a filter screen is prone to being blocked is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of floor cleaning, in particular to a dust box and a cleaning system. BACKGROUND

[0002] The existing cleaning device includes a sweeping robot, a cleaning instrument and a multifunctional mobile cleaning base station. The cleaning device is usually equipped with a dust box for collecting garbage swept by the cleaning device, so as to facilitate centralized treatment of the swept garbage.

[0003] The dust box is usually provided with an air filter and a containing cavity. The air filter is arranged in the containing cavity. A filter screen is arranged on one side of the outer periphery of the air filter. After long-term work of the dust box, the filter screen is prone to be blocked, thereby reducing the air duct suction force in the dust box. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a dust box and a cleaning system to at least solve the problem that the filter screen is prone to be blocked after long-term use of the dust box in the prior art.

[0005] According to one aspect of the present application, a dust box is provided, comprising:

[0006] A box body is provided with a containing cavity. A dust suction port and a suction passage are arranged on the outer peripheral side wall of the box body, and both the dust suction port and the suction passage are communicated with the containing cavity.

[0007] A filter assembly is arranged in the suction passage.

[0008] A cleaning part is rotatably arranged in the containing cavity, and the cleaning part is abutted on the end face of the filter assembly close to the containing cavity.

[0009] Further, the dust box further comprises a rotating assembly and a compression tab. The rotating assembly is rotatably arranged in the containing cavity. The compression tab is arranged in the containing cavity, and the compression tab is connected with the rotating assembly. The cleaning part is arranged on the rotating assembly.

[0010] Further, the filter assembly comprises a filter screen and a hepa. The filter screen is closer to the containing cavity than the hepa. The cleaning part is abutted on the filter screen.

[0011] Further, the dust box further comprises a rotating assembly. The inlet of the suction passage is located at the top of the containing cavity. The rotating assembly is located below the inlet. A support frame is arranged at the inlet of the suction passage. A through hole is arranged in the support frame. The through hole is communicated with the suction passage. The filter screen covers the through hole.

[0012] The rotating assembly comprises a rotating body and a support arm, the rotating axis of the rotating body extends along the height direction of the box body, the support arm extends along the radial direction of the rotating body, and the cleaning part is arranged on the side of the support arm close to the filter screen;

[0013] In the projection along the height direction of the box body, the filter screen has a first side edge farthest from the outer edge of the rotating body on the projection plane of the filter screen, and the extension length L1 of the support arm is greater than or equal to the minimum distance L2 from the first side edge to the outer edge of the rotating body on the projection plane of the filter screen.

[0014] Further, the support arm comprises at least two, and the at least two support arms are arranged at intervals along the circumferential direction of the rotating body, and the cleaning part is arranged on each of the support arms.

[0015] Further, the support arm has a first gap with the inner circumferential wall surface of the accommodating cavity.

[0016] Further, a support protrusion is arranged in the accommodating cavity, and the support protrusion protrudes in the direction close to the filter assembly;

[0017] The rotating body comprises a rotating sleeve, the rotating sleeve is rotatably sleeved on the support protrusion, and a wear-resistant sheet and a sealing element are arranged between the rotating sleeve and the support protrusion.

[0018] Further, a connecting part is arranged at the top of the rotating body, the dust box further comprises a shielding part, the shielding part is connected with the rotating assembly, the shielding part covers the connecting part and abuts against the filter assembly; and / or,

[0019] A boss is arranged on the rotating assembly, the boss protrudes in the direction close to the filter screen, a groove adapted to the boss is arranged on the support frame, the boss is arranged in the groove, the dust box further comprises an annular stop part, the annular stop part is arranged on the outer periphery of the boss, and the annular stop part is located between the boss and the cleaning part, and the annular stop part abuts against the filter screen.

[0020] Further, a second gap is arranged between the cleaning part and the annular stop part;

[0021] The maximum width A of the second gap satisfies the relationship: 0

[0022] Further, the cleaning part comprises at least one of a flock cleaning piece, a soft hair cleaning piece, a soft rubber cleaning piece and a foam cleaning piece.

[0023] On the other hand, the application provides a cleaning system comprising the dust box.

[0024] Compared to existing technologies, in this application, the external fan is typically connected to the suction channel. When the dust box needs to operate, the fan starts, thereby suctioning the receiving cavity through the suction channel. When the negative pressure inside the receiving cavity is too high, the receiving cavity generates suction on the outside of the dust box, and the debris outside the dust box is sucked into the receiving cavity of the dust box through the suction port. Simultaneously, when the dust box is operating, because the cleaning section is rotatably mounted inside the receiving cavity and rests against the filter assembly, the cleaning section continuously cleans the filter assembly as it rotates, preventing the filter assembly from being clogged by debris or dust. This, to a certain extent, improves the cleaning cycle of the dust box and reduces its maintenance costs. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0026] Figure 1 This is a schematic diagram of the dust box structure disclosed in this application;

[0027] Figure 2 This is an exploded structural diagram of the dust box disclosed in this application;

[0028] Figure 3 This is a partial structural diagram of the dust box disclosed in this application (with the top cover removed);

[0029] Figure 4 This is a cross-sectional schematic diagram of the dust box disclosed in this application;

[0030] Figure 5 This is a schematic diagram of the assembly of the top cover and the rotating component disclosed in this application;

[0031] Figure 6 This is a schematic diagram of the structure of the cover disclosed in this application;

[0032] Figure 7 This is a schematic diagram of the structure of the base disclosed in this application;

[0033] Figure 8 for Figure 7 Enlarged schematic diagram of region I in the middle.

[0034] The above figures include the following reference numerals:

[0035] 10, box body; 11, base; 12, upper cover; 20, cleaning part; 30, rotating assembly; 31, sealing piece; 32, wear-resistant sheet; 40, compression tab; 50, annular stop; 60, shielding part; 70, support arm; 80, boss; 81, connecting part; 82, connecting hole; 90, filter assembly; 91, filter screen; 92, hepa; 93, support frame; 100, containing cavity; 101, first gap; 102, second gap; 110, dust suction port; 111, support protrusion; 121, suction channel; 301, rotating body; 911, first side; 931, groove. DETAILED DESCRIPTION

[0036] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" as used herein indicate the presence of the features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth herein are not limiting of the scope of the present application. It should be understood that the various parts of the drawings are not necessarily drawn to scale, and that, for the purpose of convenience and clarity, not all components can be shown in a given figure. Techniques, methods, and devices known to those of ordinary skill in the art can not be discussed in detail, but rather can be summarily described in order not to unnecessarily obscure aspects of the present application. In the description of the exemplary embodiments, any specific values should be interpreted as examples only and not as limiting the scope of the exemplary embodiments. Other examples of the exemplary embodiments can have different values. It should be noted that like references herein represent like elements or parts throughout the various figures and embodiments, and thus further discussion of the same can not be necessary in each figure and / or embodiment.

[0039] As the background art said, since the dust box needs to collect the garbage cleaned by the cleaning device, a fan is usually connected on the dust box, the fan draws air from the dust box, so that a negative pressure is generated in the containing cavity 100 of the dust box, so as to suck the external garbage into the dust box. In order to avoid the garbage from entering the fan under the action of negative pressure and polluting the fan, an air filter is arranged in the dust box to filter the garbage and dust, so as to prevent the garbage and dust from entering the fan. However, after long-term use of the dust box, the garbage and dust will cover the filter screen 91 of the air filter, thereby blocking the filter screen 91, so that the suction force of the fan on the containing cavity 100 is reduced, and finally the dust collection effect of the dust box is affected.

[0040] In order to solve the above problems, referring to Figures 1 to 8 According to the embodiment of the present application, a dust box is provided, which comprises a box body 10, a filter assembly 90 and a cleaning part 20. The box body 10 is provided with a containing cavity 100, a dust suction port 110 and a suction channel 121 are formed on the outer peripheral side wall of the box body 10, and the dust suction port 110 and the suction channel 121 are in communication with the containing cavity 100. The filter assembly 90 is arranged in the suction channel 121, and the cleaning part 20 is rotatably arranged in the containing cavity 100, and the cleaning part 20 abuts against the end face of the filter assembly 90 close to the containing cavity 100.

[0041] Specifically, the external fan is usually connected to the suction channel 121, when the dust box needs to work, the fan is started, so as to suck the containing cavity 100 through the suction channel 121, when the negative pressure in the containing cavity 100 is too high, the containing cavity 100 generates suction force to the outside of the dust box, and the garbage outside the dust box is sucked into the containing cavity 100 of the dust box through the dust suction port 110. At the same time, when the dust box works, since the cleaning part 20 is rotatably arranged in the containing cavity 100, and the cleaning part 20 abuts against the filter assembly 90, the cleaning part 20 can continuously clean the filter assembly 90 when rotating, so as to prevent the filter assembly 90 from being blocked by garbage or dust, thereby prolonging the cleaning cycle of the dust box to a certain extent and reducing the maintenance cost of the dust box.

[0042] In addition, the dust box further comprises a rotating assembly 30 and a compression tab 40, the rotating assembly 30 is rotatably arranged in the containing cavity 100, the compression tab 40 is arranged in the containing cavity 100, and the compression tab 40 is connected with the rotating assembly 30, and the cleaning part 20 is arranged on the rotating assembly 30.

[0043] In the embodiment, the rotating assembly 30 drives the compression tab 40 to rotate in the accommodating cavity 100 continuously, so that the compression tab 40 compresses the garbage and dust in the accommodating cavity 100. Since the cleaning assembly is arranged on the rotating assembly 30, when the rotating assembly 30 rotates, the cleaning part 20 can clean the filtering assembly 90 continuously. Compared with the prior art, the embodiment sets the cleaning part 20 on the rotating assembly 30, and the compression tab 40 and the cleaning part 20 are arranged on the rotating assembly 30 simultaneously, which means that only one component needs to rotate, that is, the compression tab 40 can compress the garbage in the accommodating cavity 100, and the cleaning part 20 can clean the filtering assembly 90 simultaneously. On the one hand, the structure of the embodiment makes the dust box more integrated and miniaturized, and improves the space utilization of the dust box. On the other hand, only one rotating assembly 30 is needed to drive the cleaning part 20 and the compression tab 40 simultaneously, which reduces the manufacturing cost of the dust box to a certain extent.

[0044] Further, the filtering assembly 90 includes a filter screen 91 and a hepa 92, the filter screen 91 is closer to the accommodating cavity 100 than the hepa 92, and the cleaning part 20 abuts against the filter screen 91.

[0045] Specifically, the filter screen 91 is arranged on one side of the suction channel 121 close to the rotating assembly 30, the hepa 92 is arranged on the other side of the suction channel 121 away from the rotating assembly 30, and the hepa 92 extends along the extension direction of the suction channel 121. In the embodiment, since the filter screen 91 is closer to the accommodating cavity 100 than the hepa 92, when the suction channel 121 has suction, the dust and garbage in the accommodating cavity 100 are blocked by the filter screen 91, and the dust and garbage are easy to block the filter screen 91, so the cleaning part 20 of the embodiment is used to clean the filter screen 91. Actually, after the dust box works for a period of time, part of the dust will enter the hepa 92, so the hepa 92 also needs to be cleaned manually after a certain period of time. However, compared with the dust box in the prior art, the cleaning period of the dust box of the application can be greatly extended.

[0046] Further, the inlet of the suction channel 121 is located at the top of the accommodating cavity 100, the rotating assembly 30 is located below the inlet, the support frame 93 is arranged at the inlet of the suction channel 121, the support frame 93 is provided with a through hole, the through hole is communicated with the suction channel 121, and the filter screen 91 covers the through hole; the rotating assembly 30 includes a rotating body 301 and the support arm 70, the rotating axis of the rotating body 301 is along the height direction of the box body 10 (such as the arrow direction in the figure), and the support arm 70 is arranged on the rotating body 301 and extends along the height direction of the box body 10. Figure 2The support arm 70 extends along a radial direction of the rotating body 301, and the cleaning part 20 is arranged on one side of the support arm 70 close to the filter screen 91. In the projection along the height direction of the box body 10, the filter screen 91 has a first side edge 911 farthest from the outer edge of the rotating body 301 on the projection plane of the filter screen 91, and the extension length L1 of the support arm 70 is greater than or equal to the minimum distance L2 from the first side edge 911 to the outer edge of the rotating body 301 on the projection plane of the filter screen 91.

[0047] Specifically, the rotating body 301 rotates, thereby driving the support arm 70 to rotate, so that the cleaning part 20 on the support arm 70 cleans the filter screen 91. In this embodiment, the support frame 93 is used to fix the filter screen 91 to avoid the filter screen 91 from falling from the suction passage 121 due to external force, and the support arm 70 is connected to the rotating body 301 perpendicularly to the rotation axis direction of the rotating body 301. In this embodiment, since the cleaning part 20 is arranged on the support arm 70, and the support arm 70 rotates with the rotating body 301 around the rotation axis of the rotating body 301, when the extension length L1 of the support arm 70 is greater than or equal to the minimum distance L2 from the first side edge 911 to the outer edge of the rotating body 301 on the projection plane of the filter screen 91, the cleaning part 20 on the support arm 70 can clean most of the area of the filter screen 91, thereby improving the cleaning efficiency of the cleaning part 20.

[0048] It can be understood that, since the support arm 70 and the rotating body 301 are both arranged in the accommodating cavity 100, when the extension length L1 of the support arm 70 is too long, the support arm 70 can interfere with the inner wall surface of the accommodating cavity 100, thereby reducing the cleaning effect of the cleaning part 20 on the filter screen 91, and reducing the compression ability of the compression tab 40 on the garbage or dust in the accommodating cavity 100. In addition, the interference between the support arm 70 and the inner circumferential wall surface of the accommodating cavity 100 can also cause damage to the support arm 70. Therefore, in a feasible embodiment, there is a first gap 101 between the support arm 70 and the inner circumferential wall surface of the accommodating cavity 100. That is, no matter where the support arm 70 rotates to, there is a first gap 101 between the support arm 70 and the inner circumferential wall surface of the accommodating cavity 100, thereby preventing the interference between the support arm 70 and the inner circumferential wall surface of the accommodating cavity 100.

[0049] In some embodiments, the support arm 70 includes at least two, and the at least two support arms 70 are arranged at intervals along the circumferential direction of the rotating body 301, and each of the support arms 70 is provided with the cleaning part 20.

[0050] That is, after the rotating body 301 rotates one circle, each of the at least two support arms 70 can clean the filter screen 91 once, thereby improving the cleaning effect of the support arm 70 on the filter screen 91. In a specific embodiment, as shown in FIG. 4, the filter screen 91 is provided with a plurality of cleaning parts 20, and each of the cleaning parts 20 is arranged on the support arm 70. Figure 3As shown, the support arm 70 includes two, and the two support arms 70 are symmetrically arranged along the radial direction of the rotating body 301. One advantage of this design is that the rotating body 301 is subjected to the same external force when the rotating body 301 rotates, so that the rotating body 301 can rotate uniformly in the accommodating cavity 100, thereby avoiding the shaking of the rotating body 301 when the rotating body 301 rotates, so as to reduce the cleaning effect of the cleaning part 20 on the filter screen 91. In some embodiments, when the support arm 70 is arranged too long, that is, when the support arm 70 rotates to a certain position, it may interfere with the inner circumferential wall surface of the accommodating cavity 100. In these embodiments, the rotation of the rotating body 301 is swinging, that is, the rotating body 301 swings back and forth only at a certain angle, thereby driving the plurality of support arms 70 arranged at intervals on the rotating body 301 to swing, and thereby cleaning the filter screen 91 without interference between the support arm 70 and the inner circumferential wall surface of the accommodating cavity 100.

[0051] As shown in the accompanying drawings, Figure 4 As shown, the accommodating cavity 100 is provided with a support protrusion 111, and the support protrusion 111 protrudes in the direction close to the filter assembly 90. The rotating body 301 includes a rotating sleeve, the rotating sleeve is rotatably sleeved on the support protrusion 111, and a wear-resistant sheet 32 and a sealing element 31 are arranged between the rotating sleeve and the support protrusion 111.

[0052] Specifically, the support protrusion 111 is used to increase the height of the rotating sleeve in the accommodating cavity 100. At the same time, the wear-resistant sheet 32 and the sealing element 31 are arranged between the rotating sleeve and the support protrusion 111. The wear-resistant sheet 32 is used to avoid friction between the rotating sleeve and the support protrusion 111, so that dust or garbage does not enter the support protrusion 111 after the support protrusion 111 is damaged. In addition, the sealing element 31 is used to seal the gap between the support protrusion 111 and the wear-resistant pad, so as to prevent dust and garbage from entering the support protrusion 111. It can be understood that the support protrusion 111 is usually connected with an external motor, and the output shaft of the external motor penetrates the support protrusion 111 and abuts against the rotating sleeve, so as to drive the rotating sleeve to rotate. If the support protrusion 111 is damaged or not sealed between the support protrusion 111 and the rotating sleeve, garbage and dust will enter the support protrusion 111, thereby affecting the external motor, and finally affecting the cleaning effect of the cleaning part 20 on the filter screen 91 and the compression effect of the compression tab 40 on the garbage or dust.

[0053] Further, the top of the rotating body 301 is provided with a connecting part 81, and the dust box further includes a shielding part 60, the shielding part 60 is connected with the rotating assembly 30, and the shielding part 60 covers the connecting part 81 and abuts against the filter assembly 90.

[0054] In some embodiments, the connecting portion 81 comprises a connecting hole 82, a rotating shaft of the external motor passes through the connecting hole 82 through a fixing member, so that the rotating shaft of the external motor is connected to the rotating body 301, and the shielding portion 60 comprises a shielding piece for closing the connecting hole 82 to avoid garbage or dust in the accommodating cavity 100 from entering the rotating sleeve through the connecting hole 82 and then affecting the external motor.

[0055] In some embodiments, the rotating assembly 30 is provided with a boss 80 protruding in a direction close to the filter screen 91, the support frame 93 is provided with a groove 931 matched with the boss 80, the boss 80 is arranged in the groove 931, and the dust box further comprises an annular stop portion 50 arranged on the outer periphery of the boss 80 and located between the boss 80 and the cleaning portion 20, and the annular stop portion 50 abuts against the filter screen 91.

[0056] Specifically, when the size of the dust box is designed to be small, in order to match the rotating shaft of the external motor, it is necessary to arrange the boss 80 on the rotating body 301 to facilitate the assembly of the rotating shaft of the external motor and the rotating body 301. However, when the rotating body 301 is provided with the boss 80, since the cleaning portion 20 protrudes from the support arm 70, the dust on the filter screen 91 after being cleaned by the support arm 70 is easy to fall on the boss 80, and finally the dust enters the external motor and causes an impact. Therefore, in the present embodiment, the groove 931 matched with the boss 80 is arranged on the support frame 93, so that the boss 80 is inserted into the groove 931, and the annular stop portion 50 is arranged on the outer periphery of the boss 80; that is, after the support arm 70 cleans the filter screen 91, since the annular stop portion 50 abuts against the outer periphery of the groove 931 of the support frame 93, the dust is prevented from falling between the boss 80 and the annular stop portion 50, and the dust is prevented from entering the external motor.

[0057] In some embodiments, in order to save costs, the annular stop portion 50 is composed of a plurality of arc segments, that is, the plurality of arc segments are arranged to enclose the annular stop portion 50 along the circumferential direction of the boss 80. In the present embodiment, the annular stop portion 50 can be rubber or a flocking piece.

[0058] Further, the cleaning portion 20 and the annular stop portion 50 have a second gap 102; wherein the maximum width A of the second gap 102 satisfies the relationship: 0

[0059] In the embodiment, when the second gap 102 between the annular stop portion 50 and the cleaning portion 20 is too large, for example, A is greater than 0.2 mm, it will cause that the cleaning portion 20 on the support arm 70 is arranged too little, or the distance between the annular stop portion 50 and the boss 80 is too close; when the cleaning portion 20 on the support arm 70 is arranged too little, it will affect the cleaning effect of the cleaning portion 20 on the filter screen 91, and when the annular stop portion 50 is arranged too close to the boss 80, it will cause that too much garbage or dust in the dust box is accumulated in the second gap 102 when the dust box works, and then the garbage or dust in the second gap 102 is attached to the filter screen 91 when the cleaning portion 20 cleans the filter screen 91. If the cleaning portion 20 is completely connected with the annular stop portion 50, the second gap 102 does not exist, which needs to be glued between the cleaning portion 20 and the annular stop portion 50, or the cleaning portion 20 and the annular stop portion 50 are integrally formed, which will increase the manufacturing cost of the dust box; and the cleaning portion 20 is easy to be damaged due to the need to continuously rub with the filter screen 91, and the cleaning portion 20 needs to be replaced separately when it is damaged, if the cleaning portion 20 is connected with the annular stop portion 50, the annular stop portion 50 is easy to be damaged when the cleaning portion 20 is replaced. The value of A in the embodiment can be 0.05 mm, 0.1 mm, 0.15 mm and 0.2 mm.

[0060] Further, the cleaning portion 20 at least includes one of a flocking piece cleaning element, a soft hair cleaning element, a soft glue cleaning element and a foam cleaning element.

[0061] It can be understood that the cleaning portion 20 should be selected to have flexibility and certain elasticity, so as to avoid rigid friction between the cleaning portion 20 and the filter screen 91, thereby improving the service life of the cleaning portion 20. Alternatively, the cleaning portion 20 can be integrally formed with the support arm 70, or can be attached to the support arm 70 by back glue. In a preferred embodiment, the cleaning portion 20 is selected to have a flocking piece cleaning element, and the flocking piece cleaning element is attached to the support arm 70 by back glue, so that the flocking piece cleaning element can be replaced individually when it is damaged. It can be understood that when the cleaning portion 20 and the annular stop portion 50 abut against the filter screen 91, the cleaning portion 20 and the annular stop portion 50 should be in a compressed state, so that the annular stop portion 50 and the cleaning portion 20 can fully contact the filter screen 91.

[0062] In some embodiments, the box body 10 includes a base 11 and an upper cover 12, the upper cover 12 is detachably connected to the base 11, the filter assembly 90 and the suction channel 121 are arranged on the upper cover 12, and the rotating assembly 30 is arranged in the base 11.

[0063] In another aspect, the present application also provides a cleaning system, which can be a robot vacuum cleaner cleaning system, a dust cleaner cleaning system or a multifunctional mobile base cleaning system, comprising the dust box of the above-mentioned embodiments, so that the cleaning system comprises all the technical effects of the dust box of the above-mentioned embodiments. Since the technical effects of the dust box have been described in detail above, they will not be described here again.

[0064] In summary, the dust box and the cleaning system of the present application, by arranging the rotatable cleaning part 20 in the dust box, and the cleaning part 20 abutting against the filter assembly 90, so that when the dust box is working, the cleaning part 20 can clean the filter assembly 90, thereby avoiding the garbage or dust in the accommodation cavity 100 from blocking the filter assembly 90, resulting in the dust collection capacity of the dust box being reduced. In addition, the dust box of the present application is provided with the rotating assembly 30 and the compression tab 40, and the compression tab 40 and the cleaning part 20 are both arranged on the rotating assembly 30, which means that by arranging only one rotating assembly 30, the compression tab 40 can compress the garbage or dust in the accommodation cavity 100, and at the same time, the cleaning part 20 can clean the filter screen 91. In addition, in order to enable the cleaning part 20 on the support arm 70 to clean the filter screen 91 to the maximum extent when rotating, and the support arm 70 does not interfere with the inner circumferential wall surface of the accommodation cavity 100, therefore, in the projection along the height direction of the box body 10, the extension length L1 of the support arm 70 is greater than or equal to the minimum distance L2 from the first side edge 911 to the outer edge of the projection surface of the rotating body 301 on the filter screen 91, and at the same time, the support arm 70 always has the first gap 101 between the support arm 70 and the inner circumferential wall surface of the accommodation cavity 100 no matter where the support arm 70 rotates to.

[0065] For the convenience of description, spatial relative terms such as "above", "upper", "top", "up", etc. can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0066] In addition, it should be noted that the use of "first", "second", and the like words to qualify elements is merely intended to distinguish the respective elements from one another, and does not have a special meaning unless otherwise stated. Therefore, these words should not be interpreted as limiting the scope of protection of the present application.

[0067] The preferred embodiments of the present application have been described above with the help of drawing. However, for those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A dust box, characterized by The dust box comprises: a box body (10) in which a containing cavity (100) is arranged, a dust suction port (110) and a suction passage (121) are arranged on the outer peripheral wall of the box body (10), and the dust suction port (110) and the suction passage (121) are both in communication with the containing cavity (100); a filter assembly (90) arranged in the suction passage (121); a cleaning part (20) rotatably arranged in the containing cavity (100) and abutting against the end face of the filter assembly (90) close to the containing cavity (100).

2. The dust box of claim 1, wherein, The dust box further comprises a rotating assembly (30) rotatably arranged in the containing cavity (100) and a compression push piece (40) arranged in the containing cavity (100) and connected with the rotating assembly (30), and the cleaning part (20) is arranged on the rotating assembly (30).

3. The dust box of claim 1, wherein, The filter assembly (90) comprises a filter screen (91) and a hepa filter (92), the filter screen (91) is closer to the containing cavity (100) than the hepa filter (92), and the cleaning part (20) abuts against the filter screen (91).

4. The dust box of claim 3, wherein, The dust box further comprises a rotating assembly (30), the inlet of the suction passage (121) is located at the top of the containing cavity (100), the rotating assembly (30) is located below the inlet, a support frame (93) is arranged at the inlet of the suction passage (121), a through hole is arranged in the support frame (93) and in communication with the suction passage (121), and the filter screen (91) covers the through hole. The rotating assembly (30) comprises a rotating body (301) and a support arm (70), the rotation axis of the rotating body (301) extends along the height direction of the box body (10), the support arm (70) extends along the radial direction of the rotating body (301), and the cleaning part (20) is arranged on the side of the support arm (70) close to the filter screen (91). In the projection along the height direction of the box body (10), the filter screen (91) has a first side edge (911) farthest from the outer edge of the rotating body (301) on the projection plane of the filter screen (91), and the extension length L1 of the support arm (70) is greater than or equal to the minimum distance L2 from the first side edge (911) to the outer edge of the rotating body (301) on the projection plane of the filter screen (91).

5. The dust box of claim 4, wherein, The support arm (70) comprises at least two support arms (70) arranged at intervals along the circumferential direction of the rotating body (301), and the cleaning part (20) is arranged on each support arm (70).

6. The dust box of claim 4, wherein, The support arm (70) has a first gap (101) with the inner peripheral wall surface of the containing cavity (100).

7. The dust box according to any one of claims 4 to 6, characterized in that, The accommodating cavity (100) is provided with a supporting protrusion (111) which protrudes in a direction close to the filter assembly (90); The rotating body (301) comprises a rotating sleeve which is rotatably sleeved on the supporting protrusion (111), and a wear-resistant sheet (32) and a sealing element (31) are arranged between the rotating sleeve and the supporting protrusion (111).

8. The dust box according to any one of claims 4 to 6, characterized in that, The top of the rotating body (301) is provided with a connecting portion (81), the dust box further comprises a shielding portion (60) which is connected with the rotating assembly (30), the shielding portion (60) covers the connecting portion (81) and abuts against the filter assembly (90); and / or, The rotating assembly (30) is provided with a boss (80) which protrudes in a direction close to the filter screen (91), the supporting frame (93) is provided with a groove (931) which is matched with the boss (80), the boss (80) is arranged in the groove (931), and the dust box further comprises an annular stop portion (50) which is arranged on the outer periphery of the boss (80) and is located between the boss (80) and the cleaning portion (20), and the annular stop portion (50) abuts against the filter screen (91).

9. The dust box of claim 8, wherein, The cleaning portion (20) and the annular stop portion (50) have a second gap (102) therebetween; The maximum width A of the second gap (102) satisfies the relationship: 0 < A ≤ 0.2 mm.

10. The dust box according to any one of claims 2 to 6, characterized in that The cleaning portion (20) comprises at least one of a flock cleaning piece, a soft hair cleaning piece, a soft rubber cleaning piece and a foam cleaning piece.

11. A cleaning system characterized by, The cleaning system comprises the dust box according to any one of claims 1 to 10.

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