Dust box and cleaning robot

Abstract

The embodiment of the utility model relates to the technical field of cleaning systems, in particular to a dust box and a cleaning robot. The dust box can be detachably connected with a main machine of the cleaning robot. The dust box comprises a box body and a filter screen assembly. The filter screen assembly is detachably connected with the box body, the filter screen assembly comprises an induction matching element, and the induction matching element can be inducted by an induction element on the main machine when the filter screen assembly is installed on the main machine through the box body. According to the embodiment of the invention, the sensing element is arranged on the host, and the sensing matching element is arranged on the filter screen assembly, so that when the dust box is mounted on the host, the host can detect whether the filter screen assembly is neglected or not according to the sensing condition of the sensing matching element, and the host can make a corresponding response according to the detection result.

Description

TECHNICAL FIELD

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

[0002] At present, in the cleaning robot products with dust box on the market, the contact type or non-contact type sensor detection scheme is not used to detect whether the filter screen is missing, when the user maintains the dust box, if the filter screen is missing, the machine can still start normally at this time, a large amount of dust will enter the cleaning robot main body unobstructed after a period of time, which seriously affects the use effect and service life of the cleaning robot. CONTENT OF THE UTILITY MODEL

[0003] One purpose of the embodiment of the present application is to provide a dust box and a cleaning robot, so as to solve the technical problem that the cleaning robot provided by the related art lacks missing detection of the filter screen.

[0004] In a first aspect, the embodiment of the present application provides a dust box, which can be installed on a main machine of a cleaning robot, and the dust box comprises:

[0005] a box body; and

[0006] a filter screen assembly, which is detachably connected with the box body, and comprises a sensing cooperation element, which can be sensed by a sensing element on the main machine when the filter screen assembly is installed on the main machine through the box body.

[0007] Optionally, the box body comprises a filter screen mounting structure, which is located inside the box body.

[0008] The filter screen assembly further comprises:

[0009] a filter screen support, which is installed on the filter screen mounting structure and is provided with the sensing cooperation element; and

[0010] a filter screen, which is installed on the filter screen support.

[0011] Optionally, the filter screen support comprises a filter screen mounting portion and a foolproof portion, the foolproof portion is connected with the filter screen mounting portion, the filter screen mounting portion is connected with the filter screen, and at least one of the filter screen mounting portion and the foolproof portion is provided with the sensing cooperation element.

[0012] The filter screen mounting structure comprises a support mounting portion and a foolproof cooperation portion, the filter screen mounting portion is detachably installed on the support mounting portion, and the foolproof portion and the foolproof cooperation portion are matched with each other when the filter screen mounting portion is installed on the support mounting portion.

[0013] Optionally, the fool-proof part is in an L-shaped structure, and comprises a first connecting part and a second connecting part connected perpendicularly to each other, the first connecting part is connected with the filter screen mounting part, and the second connecting part is provided with the induction matching element.

[0014] When the filter screen assembly is mounted on the host through the box body, the second connecting part is closer to the induction element than the first connecting part.

[0015] Optionally, the filter screen assembly further comprises a filter screen sealing ring, the filter screen mounting part is provided with a first mounting groove arranged circumferentially around the filter screen, and the filter screen sealing ring is mounted in the first mounting groove, and the filter screen sealing ring is used for abutting against the bracket mounting part when the filter screen bracket is mounted on the filter screen mounting structure.

[0016] Optionally, the bracket mounting part comprises a sealing rib, and the sealing rib is in registration with the filter screen sealing ring and abuts against each other when the filter screen bracket is mounted on the filter screen mounting structure.

[0017] Optionally, the dust box further comprises a dust box cover, the box body is further provided with a mounting port, the dust box cover is detachably connected with the box body, and the dust box cover can cover the mounting port of the box body.

[0018] The filter screen assembly can enter the inside of the box body through the mounting port, the dust box cover comprises a top abutting part, and the top abutting part is used for abutting against the filter screen bracket when the dust box cover covers the mounting port, so that the filter screen sealing ring and the bracket mounting part abut against each other.

[0019] Optionally, the dust box further comprises a dust box cover sealing ring, the box body is circumferentially provided with a second mounting groove around the mounting port, the dust box cover sealing ring is mounted in the second mounting groove, and the dust box cover sealing ring is used for abutting against the dust box cover when the dust box cover covers the mounting port.

[0020] In another aspect, the embodiments of the present application provide a cleaning robot, comprising:

[0021] The dust box as any one of the above describes; and

[0022] A host, the host comprises the induction element, and the induction element can induce the induction matching element on the filter screen assembly when the filter screen assembly is connected with the host through the dust box.

[0023] Optionally, the induction element is a Hall sensor, the induction matching element is a magnet, and the induction element can induce the magnetic field of the induction matching element when the induction matching element is close.

[0024] The technical effects of the embodiments of the present application are as follows: The embodiments of the present application configure an inductive element on the host, and set an inductive matching element on the filter screen assembly, so that when the dust box is installed on the host, the host can detect whether the filter screen assembly is missing according to the inductive condition of the inductive matching element, and the host can make corresponding responses according to the detection results. BRIEF DESCRIPTION OF DRAWINGS

[0025] One or more embodiments are illustrated by way of example in the figures that are part of this document and which illustrate key / representative principles of the embodiments. Such illustrations are not to be considered limiting of the principles of the embodiments, as these serve as illustrative examples useful for understanding embodiments. The figures in the drawings are not to scale and the same numbers represent similar elements.

[0026] Figure 1 An exploded schematic view of a structure of a dust box provided by the embodiments of the present application;

[0027] Figure 2 A schematic view of a filter screen support and an inductive matching element of a filter screen assembly provided by the embodiments of the present application;

[0028] Figure 3 A schematic view of a structure of an upper shell of a dust box provided by the embodiments of the present application;

[0029] Figure 4 A schematic view of a structure of a lower shell of a dust box provided by the embodiments of the present application;

[0030] Figure 5 A schematic view of a cross-sectional structure of a dust box provided by the embodiments of the present application;

[0031] Figure 6 A Figure 5 An enlarged view of part A in FIG. 8.

[0032] Label Explanation:

[0033] 100, dust box; 10, box body; 11, upper shell; 111, filter screen installation structure; 1111, support installation part; 11111, sealing rib; 1112, foolproof matching part; 112, air inlet; 113, air outlet; 114, air cavity; 115, installation opening; 116, second installation groove; 12, lower shell; 121, dust suction port; 122, dust storage cavity; 20, filter screen assembly; 21, filter screen support; 211, filter screen installation part; 2111, first installation groove; 212, foolproof part; 2121, first connecting part; 2122, second connecting part; 22, filter screen; 23, inductive matching element; 24, filter screen sealing ring; 30, dust box cover; 31, top abutting part; 40, dust box cover sealing ring; 50, baffle. DETAILED DESCRIPTION

[0034] For the convenience of understanding the utility model, the utility model will be explained in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as being "connected" to another element, it can be directly on the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" and the like used in the specification indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by a person skilled in the art of the utility model. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments and are not used to limit the utility model.

[0036] The cleaning robot comprises a main machine and a dust box, the dust box can be installed on the main machine, and the dust box is a container for collecting dust, garbage and other dirt sucked in during the cleaning process of the robot.

[0037] The dust box comprises a box body and a filter screen assembly, the box body is internally provided with a dust suction port, a dust storage cavity, an air inlet, an air outlet and an air cavity, the dust suction port is respectively communicated with the dust storage cavity and the outside of the box body, the air outlet is respectively communicated with the air cavity and the main machine, and the air inlet is respectively communicated with the dust storage cavity and the air cavity. The filter screen assembly is usually installed at the air inlet and separates the dust storage cavity and the air cavity, the filter screen assembly can block the dirt from entering the air outlet from the dust storage cavity and allow the airflow to enter the air outlet from the dust storage cavity.

[0038] A fan assembly is arranged on the main machine, when the dust box is installed on the main machine, the fan assembly can act on the air cavity of the box body to generate negative pressure in the box body. Exemplarily, when the dust box is installed on the main machine, the fan assembly can be aligned with the air outlet and pump air from the air outlet during work. When the fan assembly works, negative pressure is generated in the box body, and the external airflow and dirt are sucked into the dust storage cavity from the dust suction port due to the negative pressure in the box body. The dirt is blocked by the filter screen assembly and remains in the dust storage cavity, and the airflow continues to pass through the filter screen assembly and enters the air cavity, and then is discharged from the air outlet through the air duct of the air cavity.

[0039] The cleaning robot provided by the related art usually does not perform leak detection on the filter screen assembly, so that the user installs the filter screen assembly when maintaining the dust box, at this time, the main machine can still be normally started and operated, and a large amount of dust will enter the main machine unobstructed after a period of time, which seriously affects the use effect and service life of the cleaning robot.

[0040] For a better understanding of the present application, and to show how the same can be carried into effect, reference will be made by way of example, without limitation, to the accompanying drawings, in which: Figure 1 and Figure 2 To solve the above technical problems, the dust box 100 according to the embodiments of the present application is applied to a cleaning robot and can be detachably connected with a main machine of the cleaning robot.

[0041] In some embodiments, the dust box 100 comprises a box body 10 and a filter screen assembly 20. The filter screen assembly 20 is detachably connected with the box body 10, and the filter screen assembly 20 comprises an induction matching element 23 which can be inducted by an induction element on the main machine when the filter screen assembly 20 is installed on the main machine through the box body 10.

[0042] The dust box 100 according to the embodiments of the present application has the following structural principle: the filter screen assembly 20 is detachably connected with the box body 10 and is provided with the induction matching element 23, and the box body 10 can be installed on the main machine. The induction element on the main machine can induct the induction matching element 23 on the filter screen assembly 20 to determine whether the filter screen assembly 20 is missing.

[0043] It can be understood that, according to the embodiments of the present application, the induction element is arranged on the main machine, and the induction matching element 23 is arranged on the filter screen assembly 20, so that when the dust box 100 is installed on the main machine, the main machine can detect whether the filter screen assembly 20 is missing according to the induction of the induction matching element 23, and the main machine can make a corresponding response according to the detection result.

[0044] For example, when the main machine detects that the filter screen assembly 20 is missing, the response that can be made by the main machine includes at least one of stopping working, lighting an abnormal indicator lamp, and providing a voice prompt. In some embodiments, when the user installs the filter screen assembly 20 into the dust box 100, the induction element arranged in the main machine inducts that the filter screen support 21 is assembled in place, and at this time, the cleaning robot normally operates for cleaning; when the user forgets to assemble the filter screen assembly 20, the induction element arranged in the main machine does not receive an induction signal, and the cleaning robot does not start to operate, thereby playing a function of preventing missing assembly.

[0045] In some embodiments, the box body 10 comprises a filter screen mounting structure 111 which is located inside the box body 10. The filter screen assembly 20 further comprises a filter screen support 21 and a filter screen 22. The filter screen support 21 is installed on the filter screen mounting structure 111 and is provided with the induction matching element 23, and the filter screen 22 is installed on the filter screen support 21.

[0046] It can be understood that, since the filter screen needs to be replaced at any time in actual use, the induction matching element 23 is installed on the filter screen support 21 according to the embodiments of the present application, so that the main machine can detect the filter screen assembly 20 after the filter screen 22 is replaced.

[0047] For a better understanding of the present application, and to show how the same can be carried into effect, reference will be made by way of example, without limitation, to the accompanying drawings, in which: Figure 3 and Figure 4In some embodiments, the box body 10 comprises an upper shell 11 and a lower shell 12, which are detachably connected for easy installation and maintenance. The filter screen mounting structure 111, the air inlet 112, the air outlet 113 and the air cavity 114 are arranged on the upper shell 11, and the dust suction port 121 and the dust storage cavity 122 are arranged on the lower shell 12. The air cavity 114 and the dust storage cavity 122 adopt an upper-lower structure, and in the shutdown state, the dirt will be left in the dust storage cavity 122 by gravity. In other embodiments, the box body 10 can also be an integrated structure.

[0048] In some embodiments, the filter screen support 21 and the filter screen 22 are fixedly connected by adhesive to avoid mutual disengagement during use.

[0049] Please refer to Figure 2 and Figure 3 In some embodiments, the filter screen support 21 comprises a filter screen mounting portion 211 and a foolproof portion 212, the foolproof portion 212 is connected with the filter screen mounting portion 211, the filter screen mounting portion 211 is connected with the filter screen 22, and at least one of the filter screen mounting portion 211 and the foolproof portion 212 is provided with the inductive cooperation element 23. The filter screen mounting structure 111 comprises a support mounting portion 1111 and a foolproof cooperation portion 1112, the filter screen mounting portion 211 is detachably mounted on the support mounting portion 1111, and the foolproof portion 212 cooperates with the foolproof cooperation portion 1112 when the filter screen mounting portion 211 is mounted on the support mounting portion 1111.

[0050] It can be understood that the filter screen assembly 20 needs to be installed with the working surface of the filter screen 22 facing the dust storage cavity 122 to effectively block the dirt, but without the foolproof structure, the user is easy to install the filter screen assembly 20 reversely, so that the working surface of the filter screen 22 faces away from the dust storage cavity 122.

[0051] Based on the above technical problems, in addition to the filter screen mounting portion 211 for mounting the filter screen 22, the filter screen support 21 of the embodiments of the present application is also provided with the foolproof portion 212, and the support mounting portion 1111 and the foolproof cooperation portion 1112 are arranged on the filter screen mounting structure 111. The support mounting portion 1111 provides main support for the filter screen mounting portion 211, and the foolproof cooperation portion 1112 cooperates with the foolproof portion 212 to avoid the user installing the filter screen assembly 20 reversely.

[0052] In some embodiments, the support mounting portion 1111 is a structure for avoiding the filter screen 22 and abutting and supporting the outer contour edge of the filter screen mounting portion 211. The foolproof cooperation portion 1112 is a groove matching the outer contour of the foolproof portion 212. Illustratively, when the filter screen support 21 is mounted on the filter screen mounting structure 111, the foolproof portion 212 is accommodated in the foolproof cooperation portion 1112 and cooperates with the foolproof cooperation portion 1112 with a gap.

[0053] In some embodiments, the fool-proof part 212 is in an L-shaped structure, including a first connecting part 2121 and a second connecting part 2122 connected perpendicularly to each other, the first connecting part 2121 is connected with the filter screen mounting part 211, and the second connecting part 2122 is mounted with the induction matching element 23. When the filter screen assembly 20 is installed in the host through the box body 10, the second connecting part 2122 is closer to the induction element than the first connecting part 2121.

[0054] It can be understood that the fool-proof part 212 is in an L-shaped structure, the fool-proof matching part 1112 is a groove adapted to the L-shaped structure, and when the filter screen support 21 is installed on the filter screen mounting structure 111, the L-shaped fool-proof part 212 is embedded in the adapted fool-proof matching part 1112 groove, so that the filter screen support 21 and the box body 10 are mutually buckled, further improving the installation stability of the filter screen assembly 20. At the same time, when the filter screen assembly 20 is installed in the host through the box body 10, the second connecting part 2122 is closer to the induction element than the first connecting part 2121, and the induction matching element 23 is installed on the second connecting part 2122, so that the induction matching element 23 is closer to the induction element in the host, realizing more accurate in-place detection of the filter screen assembly 20.

[0055] In some other embodiments, the fool-proof matching part 1112 can also be a blocking structure matched with the fool-proof part 212, used to block the fool-proof part 212 from being installed in place when the filter screen assembly 20 is abnormally installed, such as a stop block or a stop column. For example, the filter screen mounting structure 111 is provided with a larger accommodation space for accommodating the L-shaped fool-proof part 212, and at least one stop column is further provided on the accommodation space. When the filter screen assembly 20 is abnormally installed, the L-shaped fool-proof part 212 is aligned with the stop column and is resisted by the stop column, and cannot be accommodated in the accommodation space and installed in place; when the filter screen assembly 20 is normally installed, the L-shaped fool-proof part 212 can completely avoid each stop column, be accommodated in the accommodation space and installed in place.

[0056] It is easier to understand that, in order to avoid the problem of reverse assembly during installation of the filter screen assembly 20, the filter screen support 21 is designed with an L-shaped fool-proof part, and the fool-proof matching part 1112 is provided on the filter screen mounting structure 111. This design ensures that the filter screen 22 can only be installed in the correct direction. When the user tries to install it in reverse, the fool-proof part 212 and the fool-proof matching part 1112 cannot match, thereby preventing incorrect installation.

[0057] The dust box 100 structure scheme of the cleaning robot provided by the related art is not completely sealed (for example, the sealing structure between the filter screen assembly 20 and the box body 10), and this scheme has defects: the longer the cleaning robot runs, the more dust tends to accumulate between the filter screen support 21 and the support mounting structure, and the dust is blown into the fan assembly or the base body of the cleaning robot through the air duct, thereby reducing the service life of the cleaning robot and reducing the cleaning effect of the cleaning robot.

[0058] Please refer to Figure 1 , Figure 2 and Figure 5 , to solve the above technical problems, in some embodiments, the filter screen assembly 20 further comprises a filter screen sealing ring 24, the filter screen mounting portion 211 is provided with a first mounting groove 2111 arranged circumferentially around the filter screen 22, and the filter screen sealing ring 24 is installed in the first mounting groove 2111, and the filter screen sealing ring 24 is used to abut the support mounting portion 1111 when the filter screen support 21 is installed on the filter screen mounting structure 111.

[0059] It can be understood that the filter screen sealing ring 24 is arranged between the filter screen mounting portion 211 and the support mounting portion 1111, and the filter screen sealing ring 24 abuts the filter screen mounting portion 211 and the support mounting portion 1111 respectively, thereby reducing the gap between the filter screen mounting portion 211 and the support mounting portion 1111 and blocking the dirt from drilling into the air cavity 114 through the gap between the filter screen mounting portion 211 and the support mounting portion 1111.

[0060] In some embodiments, the filter screen sealing ring 24 is made of elastic foam or rubber that can be extruded.

[0061] Please refer to Figure 3 , Figure 5 and Figure 6 , in some embodiments, the support mounting portion 1111 comprises a sealing rib 11111, and the sealing rib 11111 is positioned and abuts the filter screen sealing ring 24 when the filter screen support 21 is installed on the filter screen mounting structure 111.

[0062] It can be understood that the support mounting portion 1111 is provided with the sealing rib 11111, and the sealing rib 11111 is positioned and abuts the filter screen sealing ring 24 when the filter screen support 21 is installed on the filter screen mounting structure 111. Since the filter screen sealing ring 24 has elastic deformation, the filter screen sealing ring 24 deforms to partially cover the sealing rib 11111 under the abutment of the sealing rib 11111, thereby further reducing the gap between the support mounting portion 1111 and the filter screen mounting portion 211, and improving the sealing property between the support mounting portion 1111 and the filter screen mounting portion 211.

[0063] More easily understood, between the filter screen mounting portion 211 and the bracket mounting portion 1111, an elastic filter screen sealing ring 24 is arranged. The filter screen sealing ring 24 is in close contact with the sealing rib 11111 during installation, forming a closed air flow passage (air flow passage from the dust storage cavity 122 to the air cavity 114 through the filter screen 22), thereby effectively preventing dust or sundries from entering the main machine air cavity.

[0064] Please refer to Figure 1 and Figure 5 In some embodiments, the dust box 100 further comprises a dust box cover 30, and the box body 10 is further provided with a mounting port 115. In an embodiment, the mounting port 115 is arranged on the upper shell 11. The dust box cover 30 is detachably connected with the box body 10, and the dust box cover 30 can cover the mounting port 115 of the box body 10. The filter screen assembly 20 can enter the inside of the box body 10 through the mounting port 115, and the dust box cover 30 comprises a top abutting portion 31 for abutting against the filter screen bracket 21 when the dust box cover 30 covers the mounting port 115, so that the filter screen sealing ring 24 abuts against the bracket mounting portion 1111.

[0065] As can be understood, the box body 10 is provided with the mounting port 115 to facilitate the installation of the filter screen assembly 20, and the dust box 100 is configured with the dust box cover 30 to close the mounting port 115 after the installation of the filter screen assembly 20, thereby ensuring that the air duct in the air cavity 114 does not change. In addition, the dust box cover 30 is provided with the top abutting portion 31, which abuts against the filter screen bracket 21 when covering the mounting port 115, so that the filter screen sealing ring 24 and the bracket mounting portion 1111 are combined more tightly. Further, as the force of the top abutting portion 31 on the filter screen bracket 21 increases, the force between the filter screen sealing ring 24 and the sealing rib 11111 increases, the elastic deformation of the filter screen sealing ring 24 increases, and the filter screen sealing ring 24 further wraps the sealing rib 11111, thereby further improving the sealing between the filter screen mounting portion 211 and the bracket mounting portion 1111. Exemplarily, the top abutting portion 31 is a top abutting column.

[0066] In some embodiments, the dust box 100 further comprises a dust box cover sealing ring 40, and the box body 10 is circumferentially provided with a second mounting groove 116 around the mounting port 115, and the dust box cover sealing ring 40 is mounted in the second mounting groove 116. The dust box cover sealing ring 40 is used to abut against the dust box cover 30 when the dust box cover 30 covers the mounting port 115.

[0067] As can be understood, in order to ensure the sealing between the box body 10 and the dust box cover 30, the second mounting groove 116 is arranged on the box body 10 and the dust box cover sealing ring 40 is mounted, so as to reduce the gap between the box body 10 and the dust box cover 30.

[0068] In some embodiments, the dust box cover sealing ring 40 adopts elastic foam or rubber which can be extruded.

[0069] Please refer to Figure 1 and Figure 5 In some embodiments, the dust box 100 further comprises a baffle 50 hinged to the box body 10 and located at the dust suction port 121, which can be sucked up and turned inward to open the dust suction port 121 when the fan assembly of the main machine is working, and close the dust suction port 121 due to its own weight when the main machine is in a stop state, so as to prevent the dirt in the dust storage cavity 122 from leaking out through the dust suction port 121.

[0070] Please refer to Figure 1 In another aspect, the embodiments of the present application provide a cleaning robot comprising the dust box 100 and the main machine as described above. The main machine comprises a sensing element capable of sensing the sensing matching element 23 on the filter screen assembly 20 when the filter screen assembly 20 is connected to the main machine through the dust box 100.

[0071] It can be understood that, by configuring the sensing element on the main machine of the cleaning robot and setting the sensing matching element 23 on the filter screen assembly 20, the main machine can detect whether the filter screen assembly 20 is missing when the dust box 100 is installed on the main machine according to the sensing condition of the sensing matching element, and make corresponding response according to the detection result, so as to avoid the user missing the filter screen assembly 20.

[0072] In some embodiments, the sensing element and the sensing matching element 23 can adopt a non-contact sensor, for example, the sensing element is a Hall sensor, and the sensing matching element 23 is a magnet, and the sensing element can sense the magnetic field of the sensing matching element 23 when the sensing matching element 23 is close, so as to detect whether the filter screen assembly 20 is installed in place.

[0073] In other embodiments, the sensing element and the sensing matching element 23 can be selected according to actual needs, which is not limited here.

[0074] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of simplicity; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dust box capable of being mounted to a main body of a cleaning robot, characterized in that, The dust box comprises: a box body; and a filter screen assembly detachably connected with the box body, the filter screen assembly comprising an inductive matching element capable of being inducted by an inductive element on the host when the filter screen assembly is installed in the host through the box body. The box body comprises a filter screen mounting structure inside the box body; 2. The dust box of claim 1, wherein, The filter screen assembly further comprises: a filter screen support mounted on the filter screen mounting structure and provided with the inductive matching element; and a filter screen mounted on the filter screen support. The filter screen support comprises a filter screen mounting portion and a foolproof portion connected with the filter screen mounting portion, the filter screen mounting portion being connected with the filter screen, and at least one of the filter screen mounting portion and the foolproof portion being provided with the inductive matching element; 3. The dust box of claim 2, wherein, The filter screen mounting structure comprises a support mounting portion and a foolproof matching portion, the filter screen mounting portion being detachably mounted on the support mounting portion, and the foolproof portion being matched with the foolproof matching portion when the filter screen mounting portion is mounted on the support mounting portion. The foolproof portion has an L-shaped structure, and comprises a first connecting portion and a second connecting portion connected perpendicularly with each other, the first connecting portion being connected with the filter screen mounting portion, and the second connecting portion being provided with the inductive matching element; 4. The dust box of claim 3, wherein, When the filter screen assembly is installed in the host through the box body, the second connecting portion is closer to the inductive element than the first connecting portion. The filter screen assembly further comprises a filter screen sealing ring, the filter screen mounting portion is provided with a first mounting groove arranged circumferentially around the filter screen, the filter screen sealing ring is mounted in the first mounting groove, and the filter screen sealing ring is used to abut against the support mounting portion when the filter screen support is mounted on the filter screen mounting structure.

5. The dust box of claim 4, wherein, The support mounting portion comprises a sealing rib, the sealing rib is positioned and abuts against the filter screen sealing ring when the filter screen support is mounted on the filter screen mounting structure.

6. The dust box of claim 5, wherein, Further comprising a dust box cover, the box body is further provided with a mounting port, the dust box cover is detachably connected with the box body, and the dust box cover can cover the mounting port of the box body; 7. The dust box of claim 5, wherein, The filter screen assembly can enter the inside of the box body through the mounting port, the dust box cover comprises a top abutting portion, the top abutting portion is used to abut against the filter screen support when the dust box cover covers the mounting port, so that the filter screen sealing ring abuts against the support mounting portion. Further comprising a dust box cover sealing ring, the box body is circumferentially provided with a second mounting groove around the mounting port, the dust box cover sealing ring is mounted in the second mounting groove, and the dust box cover sealing ring is used to abut against the dust box cover when the dust box cover covers the mounting port.

8. The dust box of claim 7, wherein, The dust box comprises:

9. A cleaning robot, characterized in that, the dust box according to any one of claims 1-8; and a host comprising the inductive element, the inductive element being capable of inducting the inductive matching element on the filter screen assembly when the filter screen assembly is connected with the host through the dust box. The inductive element is a Hall sensor, the inductive matching element is a magnet, and the inductive element is capable of inducting the magnetic field of the inductive matching element when the inductive matching element is close. ​ 10. The cleaning robot according to claim 9, wherein, ​

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