Dust box and cleaning system

Abstract

The utility model discloses a dust box and a cleaning system.The cleaning system comprises the dust box, the dust box is used for being installed on preset equipment, and the dust box comprises a box body, a stopping part and a limiting part. Wherein the box body is used for being detachably installed on preset equipment, a containing cavity is formed in the box body, a dust suction opening is formed in the peripheral side wall of the box body, and the dust suction opening is communicated with the containing cavity. The stop part is movably arranged on the box body; the limiting part is connected with the stopping part, and the limiting part penetrates through the box body. After the box body is installed on the preset equipment, the limiting part is provided with a first position where the limiting part drives the stopping part to move to open the dust collection opening under the action of external force, and after the box body is detached from the preset equipment, the stopping part is provided with a second position where the stopping part moves to close the dust collection opening under the action of external force. According to the dust box and the cleaning system, the problem that in the prior art, after a dust box is detached from a main body of a cleaning device, garbage in the dust box is likely to fall off from a dust suction opening 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] However, the garbage in the existing dust box is easy to fall from the dust suction port on the dust box after the dust box is detached from the main body of the cleaning device. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a cleaning device to at least solve the problem that the garbage in the dust box is easy to fall from the dust suction port after the dust box is detached from the main body of the cleaning device in the prior art.

[0005] According to one aspect of the present application, a dust box is provided, which is used to be installed on a predetermined device, and the dust box comprises:

[0006] a box body, which is used to be detachably installed on the predetermined device, and a containing cavity is arranged in the box body, and a dust suction port is arranged on the outer peripheral side wall of the box body, and the dust suction port is in communication with the containing cavity;

[0007] a stop portion, which is movably arranged in the box body;

[0008] a limiting portion, which is connected with the stop portion, and the limiting portion penetrates through the box body;

[0009] Wherein, after the box body is installed on the predetermined device, the limiting portion has a first position where the stop portion is moved to open the dust suction port under the action of external force, and after the box body is detached from the predetermined device, the stop portion has a second position where the stop portion is moved to close the dust suction port under the action of external force.

[0010] Further, a first force applying portion is arranged on the predetermined device, and after the box body is installed on the predetermined device, the first force applying portion applies external force to the limiting portion to drive the limiting portion to move the stop portion to the first position.

[0011] Further, the first force applying portion comprises a limiting protrusion, and after the box body is installed on the predetermined device, the limiting protrusion abuts against the limiting portion to drive the stop portion to move to the first position; and / or,

[0012] The limiting part is provided with a first magnetic attraction part near one end of the predetermined equipment, the first force applying part comprises a second magnetic attraction part, after the box body is installed on the predetermined equipment, the second magnetic attraction part applies repulsion to the first magnetic attraction part, so that the stop part moves to the first position.

[0013] Further, the dust box further comprises a second force applying part, the second force applying part is connected with the stop part, after the box body is detached from the predetermined equipment, the second force applying part applies external force to the stop part, so that the stop part moves to the second position.

[0014] Further, the stop part is arranged in the accommodating cavity, the second force applying part comprises an elastic part, a first end of the elastic part is fixed on the stop part, and a second end of the elastic part abuts against an inner wall surface of the accommodating cavity opposite to the top of the stop part; or,

[0015] The second force applying part comprises a counterweight part arranged on the top of the stop part.

[0016] Further, the box body penetrates a limiting hole, the limiting part comprises a limiting column;

[0017] The box body is provided with a sealing groove, a first sealing ring is arranged in the sealing groove, the limiting hole penetrates the box body from the groove bottom of the sealing groove, and the limiting column penetrates the limiting hole; and / or,

[0018] The limiting column penetrates the limiting hole, a second sealing ring is arranged on the outer periphery of the limiting column, and when the stop part is in the first position, the limiting column is sealed with the limiting hole through the second sealing ring.

[0019] Further, the stop part comprises a baffle, the limiting column comprises at least two limiting columns, and the at least two limiting columns are arranged at intervals along the width direction of the baffle.

[0020] Further, the inner wall surface of the accommodating cavity provided with the dust suction port is a first arc surface;

[0021] The stop part is provided with a second arc surface on one side close to the first arc surface, and when the stop part is in the second position, the first arc surface and the second arc surface are mutually attached.

[0022] Further, the dust box further comprises a compression push piece, the compression push piece is rotatably arranged in the accommodating cavity, and the compression push piece and the stop part have a first gap therebetween.

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

[0024] Compared with the prior art, the dust box of the application is provided with a stop portion and a limiting portion. When the box body is installed on a predetermined device, the limiting portion is subjected to an external force, so that the stop portion moves to a first position. At this time, the dust suction port is opened, so as to facilitate the garbage to enter the accommodating cavity. When the box body is detached from the predetermined device, the stop portion is subjected to an external force, so as to move to a second position. The stop portion closes the dust suction port, so as to avoid the garbage in the accommodating cavity from falling from the dust suction port. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of the application, illustrate the illustrative embodiments of the application and serve to explain the application, and do not constitute improper limitations on the application. In the drawings:

[0026] Figure 1 a structure schematic view of the dust box disclosed in the application;

[0027] Figure 2 a structure schematic view of the dust box disclosed in the application;

[0028] Figure 3 a structure schematic view of the dust box disclosed in the application;

[0029] Figure 4 a structure schematic view of the dust box disclosed in the application;

[0030] Figure 5 a structure schematic view of the dust box disclosed in the application;

[0031] Figure 6 a structure schematic view of the dust box disclosed in the application;

[0032] In the above drawings, the following reference signs are used:

[0033] 10, box body; 11, base; 12, upper cover; 20, stop portion; 21, baffle; 22, positioning column; 30, limiting portion; 31, limiting column; 40, second force applying portion; 41, elastic member; 50, compression tab; 60, rotating shaft; 100, accommodating cavity; 101, first gap; 110, dust suction port; 111, limiting hole; 121, positioning groove. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0036] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the drawings shown in the figures are not drawn to scale for ease of illustration of the various components. Techniques, methods, and apparatus known to those of ordinary skill can not be discussed in detail because they can be readily understood from the disclosure given herein and the skilled artisan's common general knowledge. In all examples shown and discussed herein, any specific value is to be interpreted as merely an example and not a limitation. Thus, other examples of the exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and as such, discussion of the same will not be repeated herein.

[0037] In the existing dust box, a rotatable baffle is arranged on a dust suction port 110 of the dust box. When the dust box is installed on a predetermined device, the dust box is started, a negative pressure is generated in the dust box, so that the baffle rotates, and at this time, the dust suction port 110 is opened. When the dust box is not started, the baffle is lowered under the action of gravity, so as to block the dust suction port 110. When it is necessary to clean the garbage in the dust box, the dust box needs to be dismounted from the predetermined device. After the dust box is dismounted from the predetermined device, the baffle is easily affected by external force, so that the baffle rotates, the dust suction port 110 is opened, and finally the garbage in the dust box is easily dropped from the dust suction port 110. The predetermined device can be a cleaning device such as a sweeping robot, a dust collector, and a multifunctional mobile cleaning base station.

[0038] To solve the above problems, referring to Figures 1 to 5 According to the embodiments of the present application, a dust box is provided, which is used for being installed on a predetermined device, and the dust box comprises a box body 10, a blocking part 20 and a limiting part 30.

[0039] The housing 10 is detachably mounted on a predetermined device. The housing 10 contains a receiving cavity 100, and a suction port 110 is provided on its outer peripheral sidewall, communicating with the receiving cavity 100. A stop 20 is movably mounted on the housing 10; a limiting part 30 is connected to the stop 20 and passes through the housing 10. After the housing 10 is mounted on the predetermined device, the limiting part 30, under external force, moves the stop 20 to a first position where the suction port 110 is open. After the housing 10 is detached from the predetermined device, the stop 20, under external force, moves to a second position where the suction port 110 is closed.

[0040] Compared to existing technologies, the dustbin in this embodiment is provided with a stop 20 and a limiting part 30. When the box body 10 is installed on a predetermined device, the limiting part 30 is subjected to external force, causing the stop 20 to move to a first position. At this time, the suction port 110 opens, allowing waste to enter the receiving cavity 100. When the box body 10 is removed from the predetermined device, the stop 20 is subjected to external force and moves to a second position, closing the suction port 110 and preventing waste in the receiving cavity 100 from falling out of the suction port 110.

[0041] To ensure that the dust collection port 110 on the dust box remains open after it is installed on the predetermined device, thus facilitating the entry of waste through the dust collection port 110, a first force-applying part (not shown in the figure) is provided on the predetermined device in this embodiment. After the box body 10 is installed on the predetermined device, the first force-applying part applies an external force to the limiting part 30, so that the limiting part 30 drives the stop part 20 to move to the first position.

[0042] In other words, after the box 10 is installed on the predetermined device, the limiting part 30 is subjected to the force of the first force-applying part, thereby causing the limiting part 30 to move the stop part 20 to the first position. And when the box 10 is installed on the predetermined device, the first force-applying part can continuously apply external force to the limiting part 30, thereby keeping the stop part 20 in the first position.

[0043] In some embodiments, the first force-applying part includes a limiting protrusion. After the housing 10 is installed on the predetermined device, the limiting protrusion abuts against the limiting part 30 to move the stop part 20 to the first position.

[0044] Specifically, the limiting protrusion is along the height direction of the box body 10 (as shown in the attached figure). Figure 1 The box body 10 is raised to a predetermined height in the Z direction. When the box body 10 is installed on the predetermined equipment, the limiting protrusion abuts against the limiting part 30, thereby continuously applying a supporting force to the limiting part 30, so that the stop part 20 is kept in the first position, so as to open the dust suction port 110 on the box body 10.

[0045] In some other embodiments, the limiting portion 30 is provided with a first magnetic attraction member (not shown) near one end of the predetermined device, and the first force applying portion includes a second magnetic attraction member, after the box body 10 is installed on the predetermined device, the second magnetic attraction member exerts repulsion force on the first magnetic attraction member, so as to move the stop portion 20 to the first position.

[0046] Specifically, after the box body 10 is installed on the predetermined device, the opposite surfaces of the first magnetic attraction member and the second magnetic attraction member have the same polarity, so that when the first magnetic attraction member approaches the second magnetic attraction member, the second magnetic attraction member exerts repulsion force on the first magnetic attraction member, and further moves the limiting portion 30 in a direction away from the predetermined device, so as to drive the stop portion 20 to move to the first position. In this embodiment, compared with the embodiment in which the first force applying portion is the limiting protrusion, there is no need to provide a large limiting protrusion, and thus the space utilization can be improved. Of course, in some embodiments, the second magnetic attraction member can also be provided on the limiting protrusion, so as to increase the external force exerted by the predetermined device on the limiting portion 30.

[0047] Further, the dust box further includes a second force applying portion 40, the second force applying portion 40 is connected with the stop portion 20, after the box body 10 is detached from the predetermined device, the second force applying portion 40 exerts external force on the stop portion 20, so as to move the stop portion 20 to the second position.

[0048] In this embodiment, after the box body 10 is detached from the predetermined device, the second force applying portion 40 exerts external force on the stop portion 20, so as to move the stop portion 20 to the second position, so that the stop portion 20 closes the dust suction port 110, and thus the garbage in the accommodation cavity 100 is prevented from falling from the dust suction port 110.

[0049] In some embodiments, the stop portion 20 is arranged in the accommodation cavity 100, and the second force applying portion 40 includes an elastic member 41, a first end of the elastic member 41 is fixed on the stop portion 20, and a second end of the elastic member 41 abuts against an inner wall surface of the accommodation cavity 100 opposite to the top of the stop portion 20.

[0050] It can be understood that when the dust box 10 is installed on the predetermined device, at this time, the first force applying part exerts an external force on the limiting part 30 which is greater than the elastic force exerted by the elastic part 41 on the stop part 20, and then the stop part 20 moves to the first position, and the dust suction port 110 is opened. When the dust box 10 is removed from the predetermined device, the elastic part 41 rebounds and drives the stop part 20 to move to the second position, and then the dust suction port 110 is closed, because the first force applying part no longer exerts an external force on the limiting part 30. In fact, in some embodiments, when the dust box 10 is removed from the predetermined device, the stop part 20 will still move to the second position under the action of gravity, but when the dust box 10 is turned or rotated by a certain angle, if the elastic part 41 does not exert an elastic force on the stop part 20, the stop part 20 will be offset, and then the dust suction port 110 will be opened. For example, in some extreme cases, when the dust box 10 is rotated by 180°, the gravity acting on the stop part 20 makes the stop part 20 move to the first position, which will cause the dust suction port 110 to be directly opened. In the present embodiment, the elastic part 41 exerts an elastic force on the stop part 20 and overcomes the external force acting on the stop part 20, so that the stop part 20 moves to the second position. On the other hand, the elastic part 41 exerts an external force on the stop part 20, so that the stop part 20 can be kept at the second position. In some embodiments, the stop part 20 is further provided with a positioning column 22, the positioning column 22 is provided with a positioning hole, the inner wall surface of the accommodating cavity 100 opposite to the top of the stop part 20 is provided with a positioning groove 121, and the second end of the elastic part 41 abuts against the groove bottom of the positioning groove 121.

[0051] In some alternative embodiments, the second force applying part 40 includes a counterweight, and the counterweight is arranged on the top of the stop part 20. In the present embodiment, the counterweight is arranged on the stop part 20, and then the total weight of the stop part 20 and the counterweight is increased. When the first force applying part removes the external force exerted on the limiting part 30, the stop part 20 moves to the second position under the action of gravity to close the dust suction port 110. Compared with the embodiment in which the second force applying part 40 is the elastic part 41, the counterweight has a small volume, so that the space utilization rate of the dust box can be improved, but there is a problem that when the dust box 10 is turned by a certain angle or turned over, the dust suction port 110 can be opened.

[0052] Further, the box body 10 penetrates through the limiting hole 111, and the limiting part 30 comprises a limiting column 31. When the dust box is working, the garbage on the predetermined device is sucked into the dust box by negative pressure. Since the limiting column 31 needs to penetrate through the limiting hole 111 in the embodiment, the sealing performance between the limiting column 31 and the limiting hole 111 needs to be ensured to avoid that the dust or garbage penetrates out of the limiting hole 111. Therefore, in some embodiments, the box body 10 is provided with a sealing groove (not shown in the figure), the sealing groove is provided with a first sealing ring (not shown in the figure), the limiting hole 111 penetrates through the box body 10 from the groove bottom of the sealing groove, and the limiting column 31 penetrates through the limiting hole 111.

[0053] Optionally, the limiting column 31 penetrates through the limiting hole 111, and the outer periphery of the limiting column 31 is provided with a second sealing ring (not shown in the figure). When the stop part 20 is in the first position, the limiting column 31 is sealed with the limiting hole 111 through the second sealing ring.

[0054] That is to say, when the box body 10 is installed on the predetermined device, the second sealing ring on the outer periphery of the limiting column 31 penetrates into the limiting hole 111 due to the action of the first force applying part, so that the limiting column 31 is sealed with the limiting hole 111, and the dust and garbage cannot fall through the limiting hole 111. After the box body 10 is detached from the predetermined device, the stop part 20 is moved to the second position under the action of the external force, and at this time, the limiting hole 111 in the accommodating cavity 100 is blocked by the stop part 20 and the limiting column 31, so that the dust and garbage are difficult to fall through the limiting hole 111. Of course, the sealing groove can also be provided on the box body 10, the first sealing ring is arranged in the sealing groove, and the second sealing ring is further arranged on the outer periphery of the limiting column 31, so as to further improve the sealing effect of the box body 10 when working.

[0055] In some embodiments, for example, as shown in FIG. 1, the limiting part 30 can also be a limiting structure, and the limiting structure penetrates in the limiting hole 111. When the first force applying part penetrates through the limiting hole 111 and stops on the limiting structure, the stop part 20 moves to the first position. Figure 6

[0056] In the embodiment, the box body 10 comprises a base 11 and an upper cover 12, the upper cover 12 is detachably connected to the base 11, and the accommodating cavity 100 is arranged between the upper cover 12 and the base 11. When the second force applying part 40 is an elastic piece 41, the second end of the elastic piece 41 abuts against one side of the upper cover 12 close to the base 11, and the limiting hole 111 is arranged on the base 11.

[0057] Further, the stop part 20 comprises a baffle 21, and the limiting column 31 comprises at least two limiting columns 31. The at least two limiting columns 31 are arranged in the width direction (for example, the X direction in FIG. 2) of the baffle 21. Figure 3

[0058] ​​Specifically, since the baffle 21 has a certain width, in order to ensure that the baffle 21 has a stable movement process when switching between the first position and the second position, at least two limiting columns 31 should be provided, and the at least two limiting columns 31 are spaced apart along the width direction of the baffle 21 to improve the stability of the movement of the baffle 21. In a specific embodiment, the limiting columns 31 include two, and the two limiting columns 31 are respectively connected on both sides of the baffle 21 in the width direction, the box body 10 is provided with two limiting holes 111, and the predetermined device is provided with two limiting protrusions corresponding to the two limiting columns 31. In fact, the number of limiting columns 31 should not be too much, for example, more than 4, and setting too many limiting columns 31 requires setting more corresponding limiting holes 111 and sealing members, which will cause the manufacturing cost of the dust box to be too high. In the present embodiment, the baffle 21 and the limiting column 31 are integrally formed.

[0059] In addition, in order to enable the stop portion 20 to completely close the dust suction port 110 when the stop portion 20 is located at the second position. In the present embodiment, the inner wall surface of the accommodating cavity 100 provided with the dust suction port 110 is a first arc surface. The side of the stop portion 20 close to the first arc surface is provided with a second arc surface, and the first arc surface and the second arc surface are mutually fitted when the stop portion 20 is at the second position. That is, when the stop portion 20 is at the second position, the second arc surface and the first arc surface are mutually fitted, thereby avoiding the existence of a gap between the stop portion 20 and the dust suction port 110, causing the garbage or dust in the accommodating cavity 100 to pass out from the gap.

[0060] Further, the dust box further comprises a compression paddle 50, which is rotatably arranged in the accommodating cavity 100, and the compression paddle 50 and the stop portion 20 have a first gap 101 therebetween.

[0061] Specifically, the accommodating cavity 100 is provided with a rotating shaft 60, and the predetermined device is provided with a driving motor, and when the dust box is installed on the predetermined device, the rotating shaft 60 is connected with the driving motor. The compression paddle 50 is connected with the rotating shaft 60, and when the driving motor drives the rotating shaft 60 to rotate, the rotating shaft 60 drives the compression paddle 50 to rotate, thereby compressing the garbage or dust in the accommodating cavity 100. In the present embodiment, when the compression paddle 50 rotates to any position and the stop portion 20 is at any position between the first position and the second position, the compression paddle 50 and the stop portion 20 have the first gap 101 therebetween, thereby avoiding interference between the stop portion 20 and the compression paddle 50.

[0062] 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 embodiments, and thus the cleaning system comprises all the technical effects of the dust box of the above embodiments. Since the technical effects of the dust box have been described in detail above, they will not be described here again.

[0063] In summary, the dust box and the cleaning system of the present application, by providing the stop portion 20 and the limiting portion 30, when the dust box is installed on the predetermined device, the limiting portion 30 is acted on by the external force of the predetermined device, thereby driving the stop portion 20 to move to the first position to open the dust suction port 110, so as to facilitate the garbage or dust swept on the predetermined device to enter the accommodation cavity 100. When the dust box is removed from the predetermined device, the stop portion 20 is moved to the second position by the external force, thereby closing the dust suction port 110 to avoid garbage or dust falling from the dust suction port 110. In addition, in the present embodiment, the first force applying portion is provided on the predetermined device and the second force applying portion is provided on the stop portion 20. When the box body 10 is installed on the predetermined device, the first force applying portion continuously applies external force to the limiting portion 30, so that the stop portion 20 remains in the first position. When the box body 10 is removed from the predetermined device, the first force applying portion removes the external force applied to the limiting portion 30, and the second force applying portion 40 applies external force to the stop portion 20, so that the stop portion 20 remains in the second position. Finally, the dust box of the present application is provided with the compression tab 50, and the first gap 101 is provided between the compression tab 50 and the stop portion 20, so as to avoid the interference between the stop portion 20 and the compression tab 50 when the compression tab 50 compresses the garbage or dust in the accommodation cavity 100.

[0064] For the purpose of convenience, spatial relative terms such as "above", "upper", "top", "up", and the like, can be used herein to describe the spatial relationship between one device or feature and another device or feature 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 drawings 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.

[0065] 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.

[0066] The preferred embodiments of the present application have been described above with the aid of drawing figures, and are not intended to limit the scope of the present application. Various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A dust box, characterized by The dust box is used for being mounted on a predetermined device, and the dust box comprises: a box body (10) used for being detachably mounted on the predetermined device, a containing cavity (100) being arranged in the box body (10), and a dust suction port (110) being arranged on an outer peripheral side wall of the box body (10) and being in communication with the containing cavity (100); a stop portion (20) movably arranged in the box body (10); a limiting portion (30) connected with the stop portion (20) and penetrating through the box body (10); wherein, after the box body (10) is mounted on the predetermined device, the limiting portion (30) has a first position in which the stop portion (20) is moved to open the dust suction port (110) under the action of an external force, and after the box body (10) is detached from the predetermined device, the stop portion (20) has a second position in which the stop portion (20) is moved to close the dust suction port (110) under the action of an external force.

2. The dust box of claim 1, wherein, The predetermined device is provided with a first force applying portion, and after the box body (10) is mounted on the predetermined device, the first force applying portion applies an external force to the limiting portion (30) to move the stop portion (20) to the first position.

3. The dust box of claim 2, wherein, The first force applying portion comprises a limiting protrusion, and after the box body (10) is mounted on the predetermined device, the limiting protrusion abuts against the limiting portion (30) to move the stop portion (20) to the first position; and / or, An end of the limiting portion (30) close to the predetermined device is provided with a first magnetic attraction member, and the first force applying portion comprises a second magnetic attraction member, and after the box body (10) is mounted on the predetermined device, the second magnetic attraction member applies a repulsive force to the first magnetic attraction member to move the stop portion (20) to the first position.

4. The dust box of claim 1, wherein, The dust box further comprises a second force applying portion (40) connected with the stop portion (20), and after the box body (10) is detached from the predetermined device, the second force applying portion (40) applies an external force to the stop portion (20) to move the stop portion (20) to the second position.

5. The dust box of claim 4, wherein, The stop portion (20) is arranged in the containing cavity (100), the second force applying portion (40) comprises a resilient member (41), a first end of the resilient member (41) is fixed on the stop portion (20), and a second end of the resilient member (41) abuts against an inner wall surface of the containing cavity (100) opposite to the top of the stop portion (20); or, The second force applying portion (40) comprises a counterweight member arranged on the top of the stop portion (20).

6. The dust box of claim 1, wherein, The box body (10) penetrates through a limiting hole (111), and the limiting portion (30) comprises a limiting column (31). The box body (10) is provided with a sealing groove, a first sealing ring is arranged in the sealing groove, the limiting hole (111) penetrates the box body (10) from the groove bottom of the sealing groove, and the limiting column (31) penetrates the limiting hole (111); and / or, The limiting column (31) penetrates the limiting hole (111), a second sealing ring is arranged on the outer periphery of the limiting column (31), and the limiting column (31) is sealed with the limiting hole (111) through the second sealing ring when the stop portion (20) is in the first position.

7. The dust box of claim 6, wherein, The stop portion (20) comprises a baffle (21), and the limiting column (31) comprises at least two limiting columns (31) which are arranged at intervals along the width direction of the baffle (21).

8. The dust box according to any one of claims 1 to 7, characterized in that, The inner wall surface of the accommodating cavity (100) provided with the dust suction port (110) is a first arc-shaped surface; The stop portion (20) is provided with a second arc-shaped surface on the side close to the first arc-shaped surface, and the first arc-shaped surface and the second arc-shaped surface are mutually attached when the stop portion (20) is in the second position.

9. The dust box according to any one of claims 1 to 7, characterized in that, The dust box further comprises a compression knob (50) which is rotatably arranged in the accommodating cavity (100), and the compression knob (50) and the stop portion (20) have a first gap (101) therebetween.

10. A cleaning system characterized by, The cleaning system comprises the dust box according to any one of claims 1 to 9.

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