Dust box, cleaning equipment and cleaning system

Abstract

The invention provides a dust box, cleaning equipment and a cleaning system.The dust box is applied to the cleaning equipment with a negative pressure fan, the cleaning equipment can be in butt joint with a base station with a dust collection fan, and the dust box comprises a blocking assembly located in a box body and close to a dust inlet, and the blocking assembly is used for opening or closing the dust inlet; the driving assembly is connected with the blocking assembly, and the driving assembly is used for driving the blocking assembly to open or close the dust inlet; the dust box has a self-cleaning state; when the dust box enters a self-cleaning state, the dust collecting opening is communicated with the dust collecting fan, and the driving assembly drives the blocking assembly to close the dust inlet; and under the action of the dust collection fan, the air path enters the base station through the negative pressure opening, the filtering assembly and the dust collection opening so as to clean the filtering assembly. According to the dust box provided by the embodiment of the invention, self-cleaning of the filtering assembly can be realized. The process does not need manual operation of a user, and the use experience of the user can be improved.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and more particularly to a dust box, cleaning equipment, and cleaning system. Background Technology

[0002] With the rapid development of smart home technology, floor cleaning equipment has been widely used in homes, offices and other settings, becoming an important tool in people's daily lives.

[0003] In related technologies, the cleaning equipment is equipped with a dust box, which can suck up dirt and empty it into the dust box. The dust box contains a filter that can filter out solid dirt, preventing it from entering the negative pressure fan of the cleaning equipment.

[0004] However, the aforementioned cleaning equipment requires users to manually clean the filter, which is cumbersome and inconvenient for users. Summary of the Invention

[0005] This application provides a dust box, cleaning equipment, and cleaning system, aiming to solve the technical problem in related technologies that cleaning equipment requires users to manually clean the filter, which is cumbersome and inconvenient for users.

[0006] In a first aspect, embodiments of this application provide a dust box for use in cleaning equipment with a negative pressure fan, wherein the cleaning equipment can be connected to a base station with a dust collection fan, and the dust box includes:

[0007] The housing has a dust inlet, a negative pressure inlet, and a dust collection inlet that are interconnected. The negative pressure inlet is used to connect to the negative pressure fan, and the dust collection inlet is used to connect to the dust collection fan.

[0008] A filter assembly is located inside the housing; the dust inlet and the dust collection port are located on one side of the filter assembly, and the negative pressure port is located on the other side.

[0009] A blocking component is located inside the housing and is positioned near the dust inlet. The blocking component is used to open or close the dust inlet.

[0010] A drive component is connected to the blocking component, and the drive component is used to drive the blocking component to open or close the dust inlet; the dust box has a self-cleaning state;

[0011] When the dust box enters the self-cleaning state, the dust collection port is connected to the dust collection fan, and the drive component drives the blocking component to close the dust inlet; under the action of the dust collection fan, the airflow enters the base station through the negative pressure port, the filter component, and the dust collection port to clean the filter component.

[0012] The dust box provided in this embodiment, by incorporating a blocking component and a driving component for that component, can close the negative pressure port in a clean state. This improves the airtightness of the box interior, ensuring that the airflow used for dust collection can pass through the filter assembly and enter the dust collection bag, thereby achieving self-cleaning of the filter assembly. This process requires no manual operation from the user, improving the user experience. Furthermore, by collecting dirt through airflow, compared to manual cleaning, the filter mesh gaps of the filter assembly can be thoroughly cleaned, enhancing the self-cleaning effect and facilitating the next operation of the cleaning equipment.

[0013] As an optional implementation, the blocking assembly includes a baffle and a blocking member, the blocking member being movably disposed within the housing; the baffle is rotatably connected to the housing and is used to open or close the dust inlet.

[0014] The drive assembly includes a thermal element and a heating element. The two ends of the thermal element are fixedly connected to the blocking element and the inner wall of the box, respectively. The heating element is connected to the thermal element and is used to provide heat. The thermal element is configured to control the blocking element to move closer to or away from the baffle according to the extension or retraction of the heating element.

[0015] When the dust box enters the self-cleaning state, the heating element provides heat and the temperature of the thermal element rises. The thermal element stretches and drives the blocking assembly to move closer to the baffle, so that the blocking element blocks the baffle from rotating.

[0016] With the above setup, the heat-sensitive element stretches under heating, which is then converted into translation of the blocking element, restricting the rotational freedom of the baffle and thus closing the dust inlet. In this way, the dust inlet cannot be opened under negative pressure, and the airflow can only pass through the path of dust collection port - filter assembly - negative pressure port.

[0017] In this way, the reverse airflow can act stably and continuously on the surface of the filter element to clean the dirt on the filter element, which solves the technical problem of insufficient convenience caused by manual cleaning in related technologies. Moreover, the structure is simple and the response is stable, which can improve the user experience.

[0018] As an optional implementation, the blocking assembly includes a baffle and a blocking member, the blocking member being movably disposed within the housing; the baffle is rotatably connected to the housing and is used to open or close the dust inlet.

[0019] The driving component includes a driving element, which has a fixed end and an output end, and the output end is movable relative to the fixed end.

[0020] When the dust box enters the self-cleaning state, the driving member drives the blocking member to move closer to the baffle, so that the blocking member prevents the baffle from rotating.

[0021] With the above setup, when the dust box enters the self-cleaning state, the drive unit receives the start-up electrical signal, causing its output end to extend relative to the fixed end and move the blocking component closer to the baffle. Once the blocking component reaches and contacts the baffle, it applies a continuous normal constraint force, preventing the baffle from rotating and thus sealing the dust inlet. In this way, the dust inlet cannot be opened under negative pressure, and the airflow can only pass through the path of dust collection port - filter assembly - negative pressure port.

[0022] In this way, the reverse airflow can act stably and continuously on the surface of the filter element to clean the dirt on the filter element, which solves the technical problem of insufficient convenience caused by manual cleaning in related technologies. Moreover, the structure is simple and the response is stable, which can improve the user experience.

[0023] As an optional implementation, the blocking assembly includes a baffle, a blocking member, and a rotating shaft. The blocking member is movably disposed within the housing. The housing has a rotating hole corresponding to the rotating shaft. The baffle is rotatably connected to the housing via the rotating shaft to open or close the dust inlet. The dust box also has a working state.

[0024] When the dust box enters the working state, the dust inlet is connected to the negative pressure fan, the dust collection port is closed, and the drive assembly drives the blocking member to move away from the dust inlet, so that the blocking member opens the dust inlet;

[0025] Under the action of the negative pressure fan, dirt outside the dust inlet enters the housing through the dust inlet to clean the surface to be cleaned.

[0026] By setting up the above-mentioned movable blocking components and rotating baffles to open or close the dust inlet, the technical problem of insufficient convenience caused by manual cleaning in related technologies is solved. The structure is simple and the response is stable, which can improve the user experience.

[0027] In addition, the above settings can also solve the technical problem that the main unit can only transfer garbage but cannot clean the filter at the same time, which leads to filter clogging, suction power reduction and cleaning efficiency decline. This allows the cleaning equipment to maintain a high airflow and high filtration efficiency during the cleaning process, which is conducive to improving the cleaning effect of the cleaning equipment.

[0028] As an optional implementation, the blocking assembly further includes an elastic element, the two ends of which are respectively connected between the blocking element and the housing, and the elastic element and the driving assembly are located on the same side of the blocking element and away from the baffle.

[0029] When the dust box enters the self-cleaning state, the drive assembly drives the blocking member to move toward the baffle, and the elastic member undergoes elastic deformation.

[0030] When the dust box enters the working state, the drive component stops working, the elastic element resets and drives the blocking element to move away from the baffle.

[0031] With the above settings, during the process of the dust box switching from self-cleaning state to working state, the drive component does not need continuous power supply. It can rely on the elastic element to drive the blocking element to automatically move away from the baffle, thereby quickly and reliably opening the dust inlet.

[0032] In addition, the elastic element is arranged on the same side as the drive assembly and is far away from the baffle, which can avoid the interference of the baffle opening and closing due to the resetting of the blocking element, and ensure the smooth rotation of the baffle under negative pressure.

[0033] In addition, the design of flexible components can reduce energy consumption of cleaning equipment, thereby increasing the working time of cleaning operations and improving the cleaning effect of the equipment.

[0034] As an optional implementation, the blocking assembly further includes a first guide plate and a second guide plate, the first guide plate and the second guide plate being located on the left and right sides of the blocking member, respectively;

[0035] Both the first guide plate and the second guide plate are provided with limiting portions on the side facing the inside of the box, and at least a portion of the blocking member is located between the limiting portion and the box.

[0036] When the drive assembly includes a thermal element and a heating element, at least one of the first guide plate and the second guide plate is provided with a rotating shaft at its end, and the thermal element is wound around the rotating shaft.

[0037] With the above configuration, the blocking component can move linearly under the combined action of the first guide plate, the second guide plate, the limiting part, and the housing, which improves the moving accuracy of the blocking component and thus enhances the stability of the blocking component in restricting the rotation of the baffle. The rotating shaft can reduce the sliding friction loss between the heat-sensitive component and the fixed structure, thereby extending the service life of the heat-sensitive component and improving the stability of the drive assembly, ensuring stable switching of the dust box between different states.

[0038] As an optional implementation, the blocking assembly further includes a rotating member having a first end and a second end, the first end being rotatably connected to the housing and located on the side of the blocking member away from the baffle.

[0039] The blocking member has a connected moving section and a locking section;

[0040] When the second end is located in the moving section, the drive component drives the blocking member to move closer to or away from the baffle, so that the dust box enters the self-cleaning state or the working state;

[0041] When the second end is in the locking section, the dust box is in the self-cleaning state or the working state.

[0042] With the above settings, the drive component outputs power only during state switching and self-cleaning phases. When the second end of the rotating component enters the locking section, its rotational freedom is restricted by the channel boundary, forming a self-locking mechanism. This self-locking method eliminates the need for continuous power supply to the drive component, reducing the energy consumption of the cleaning equipment, extending its cleaning operation time, and consequently reducing the number of times the cleaning equipment needs to connect to the base station, thus improving the user experience.

[0043] As an optional implementation, the blocking member has a first groove segment, a second groove segment, a third groove segment, and a fourth groove segment connected end to end; the moving segment includes the second groove segment and the fourth groove segment; and the locking segment includes the first groove segment and the third groove segment; the included angles of the first groove segment and the third groove segment are both directed toward the baffle, and are opposite to the included angles of the second groove segment and the fourth groove segment.

[0044] When the second end is located in the first groove section, the dust box is in the self-cleaning state;

[0045] When the second end is located in the third groove section, the dust box is in the working state.

[0046] Through the above-described design, the position of the second end of the grooved section on the shielding component in this embodiment can map the working state of the dustbin. Since the first and third grooves provide self-locking capabilities, the dustbin can operate in either self-cleaning or working state for an extended period. The transition area between the second and fourth grooves ensures smooth state switching. This process can be repeated cyclically, improving the continuity and stability of state switching within the dustbin, thereby ensuring stable switching between self-cleaning and cleaning operations.

[0047] Secondly, this application embodiment also provides a cleaning device, including a body, a negative pressure fan located on the body, and the dust box;

[0048] The negative pressure fan is connected to the dust inlet of the dust box.

[0049] The cleaning device provided in this application embodiment, by incorporating a dust box with blocking and driving components, eliminates the need for manual operation during the self-cleaning process, thus improving the user experience. Furthermore, by collecting dirt through airflow, it can deeply clean the filter mesh gaps of the filtration component compared to manual cleaning, enhancing the self-cleaning effect and facilitating the device's subsequent operation.

[0050] Thirdly, embodiments of this application also provide a cleaning system, including a base station and the aforementioned cleaning equipment, wherein the base station has a dust collection fan for docking with a dust box, and the dust collection fan is selectively connected to the dust collection port of the dust box.

[0051] The cleaning system provided in this application embodiment, by incorporating a dust box with blocking and driving components, eliminates the need for manual operation during the self-cleaning process, thus improving the user experience. Furthermore, by collecting dirt through airflow, it can deeply clean the filter mesh gaps of the filtration components compared to manual cleaning, enhancing the self-cleaning effect and facilitating the next operation of the cleaning equipment. Attached Figure Description

[0052] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0053] Figure 1 A perspective view of the dust box in working condition, provided in an embodiment of this application;

[0054] Figure 2 A three-dimensional schematic diagram of the dust box in a self-cleaning state provided in an embodiment of this application;

[0055] Figure 3 A cross-sectional schematic diagram of the dust box in working condition according to an embodiment of this application;

[0056] Figure 4 A cross-sectional schematic diagram showing the dust box in a self-cleaning state according to an embodiment of this application;

[0057] Figure 5 A cross-sectional schematic diagram showing a portion of the dust box structure in operation, as provided in an embodiment of this application;

[0058] Figure 6 A cross-sectional schematic diagram showing a portion of the dust box structure in a self-cleaning state, as provided in an embodiment of this application;

[0059] Figure 7 This is a schematic diagram of the shielding component of the dust box drive assembly provided in an embodiment of this application.

[0060] Explanation of reference numerals in the attached figures:

[0061] 10. Dust box;

[0062] 100. Housing; 110. Dust inlet; 120. Negative pressure port; 130. Dust collection port;

[0063] 200. Filter components;

[0064] 300. Blocking assembly; 310. Baffle;

[0065] 320. Blocking component; 321. First groove segment; 322. Second groove segment; 323. Third groove segment; 324. Fourth groove segment;

[0066] Rotating shaft;

[0067] 400. Drive assembly; 410. Thermal element; 420. Elastic element; 430. First guide plate; 440. Second guide plate; 450. Rotating shaft;

[0068] 460. Rotating component; 461. First end; 462. Second end.

[0069] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0070] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0071] In a first aspect, embodiments of this application provide a cleaning system (not shown in the figures), including cleaning equipment and a base station. The cleaning equipment can be placed on the base station.

[0072] Cleaning equipment can include floor scrubbers, vacuum cleaners, robotic vacuum cleaners, robotic mopping robots, and robotic vacuum and mop combos. The cleaning equipment in this embodiment is a robot with vacuuming capabilities, such as a robotic vacuum cleaner or a robotic vacuum and mop combo.

[0073] Secondly, embodiments of this application also provide a base station. The base station includes a base station body (not shown in the figure), which is used to interface with cleaning equipment.

[0074] After cleaning the surface, the cleaning equipment can be placed on a base station for positioning, charging, self-cleaning, drying, and water supply / discharge. The base station has designated placement areas for the cleaning equipment, enabling its precise placement. A charging port is provided for charging the equipment. The base station may be equipped with a water inlet pipe and a wastewater outlet pipe to fill the clean water tank and drain the wastewater tank. A drying device may also be installed on the base station to dry the cleaned equipment.

[0075] In some embodiments, the base station body includes a dust collection fan. When a cleaning device is connected to the base station body, the dust collection fan can provide negative pressure to suck up the dirt collected by the cleaning device. Specifically, the base station body is provided with a collection port corresponding to the cleaning device, through which the dust collection fan can connect to the cleaning device. To prevent contamination of the collection port, a door can be provided at the collection port location. When the dust collection fan is started, the door can open inward under negative pressure. Additionally, the base station body can be provided with a dust collection bag for collecting dirt.

[0076] Thirdly, this application also provides a cleaning device, which includes a main body and a negative pressure fan located on the main body. The negative pressure fan provides negative pressure so that the cleaning device can suck up dirt from the surface to be cleaned. The main body may be provided with a suction port facing the surface to be cleaned. Under the action of the negative pressure fan, dirt on the surface to be cleaned can be sucked into the cleaning device through the suction port, thereby cleaning the surface to be cleaned.

[0077] In some embodiments, the cleaning device further includes a cleaning component for cleaning the surface to be cleaned.

[0078] It is understood that the cleaning components are suitable for performing cleaning actions on the surface to be cleaned to achieve a cleaning effect. The surface to be cleaned can be a surface of varying roughness, a wall surface, or a carpet, blanket, or object of varying lengths or types; this application does not specifically limit the type of surface to be cleaned. The cleaning action can be vacuuming, mopping, or both simultaneously to ensure the cleaning efficiency of the equipment.

[0079] Reference Figure 1 , Figure 2 Fourthly, embodiments of this application also provide a dust box 10. The dust box 10 can be installed on the body of the aforementioned cleaning equipment. Specifically, the dust box 10 includes a housing 100 and a filter assembly 200.

[0080] Reference Figure 1 , Figure 2The housing 100 has a dust inlet 110, a negative pressure inlet 120 and a dust collection inlet 130 that are interconnected. The negative pressure inlet 120 is used to connect to a negative pressure fan, and the dust collection inlet 130 is used to connect to a dust collection fan.

[0081] In some embodiments, the housing 100 can be a rigid sealed cavity, with an overall rectangular or trapezoidal shell structure, and reinforcing ribs on the inner wall to resist deformation under air pressure load. The dust inlet 110 is located at the center of the front side of the housing 100, corresponding to the suction port of the cleaning equipment. The negative pressure port 120 can be located at the rear or bottom of the housing 100, connecting to the air outlet of the negative pressure fan. It is understood that the interface can be a snap-fit ​​quick-connect sealing structure for easy connection. The dust collection port 130 can be located at the top or upper side of the housing 100, connecting to the collection port of the base station. The interface can be equipped with a silicone sealing ring and a guide bevel to ensure an airtight connection during connection.

[0082] Reference Figure 3 , Figure 4 The filter assembly 200 is located inside the housing 100. In some embodiments, the filter assembly 200 can be of any form, such as a single-layer filter, a composite filter, or a HEPA filter. This application does not limit the specific form of the filter assembly 200, nor is it limited to the above examples; any form that can filter dirt is acceptable. For example, the filter assembly 200 can be flat or wedge-shaped to be installed in a pre-set slot within the housing 100.

[0083] It is understandable that the filter assembly 200 is designed to be detachable for easy replacement or cleaning, meaning that the filter assembly 200 can be removed or installed relative to the housing 100 for user convenience.

[0084] Reference Figure 1 , Figure 2 The dust inlet 110 and dust collection port 130 are located on one side of the filter assembly 200, while the negative pressure port 120 is located on the other side. Thus, when the dust inlet 110 is open and the negative pressure port 120 is operating, the airflow driven by the negative pressure fan flows from the dust inlet 110 through the filter assembly 200 to the negative pressure port 120. At this time, the airflow direction is perpendicular to the surface of the filter media assembly, resulting in a high dirt retention efficiency.

[0085] In related technologies, after the filter assembly 200 has been working continuously for a period of time, the side of the filter assembly 200 facing the dust inlet 110 will inevitably become dirty. Normally, the user needs to manually disassemble the filter assembly 200 and clean it, which is not user-friendly and inconvenient.

[0086] Reference Figure 3 , Figure 4Based on this, this application provides a dust box 10, which, in addition to the aforementioned housing 100 and filter assembly 200, also includes a blocking assembly 300 and a driving assembly 400.

[0087] Specifically, the blocking component 300 is located inside the housing 100 and is positioned near the dust inlet 110. The blocking component 300 is used to open or close the dust inlet 110. The drive component 400 is connected to the blocking component 300 and is used to drive the blocking component 300 to open or close the dust inlet 110.

[0088] The drive assembly 400 is the power input unit for the blocking assembly 300, fixed to the inner wall of the housing 100 or the bracket, and its output end is mechanically coupled to the blocking assembly 300. The function of the drive assembly 400 is to generate a controllable displacement or force in response to a control signal (electrical signal or thermal signal), thereby driving the displacement between the blocking assembly 300 and the dust inlet 110, and thus completing the closing or opening action of the dust inlet 110.

[0089] In some embodiments, the type of drive component 400 can be varied. For example, the drive component 400 can employ a micro stepper motor with a worm gear reducer, with its output end connected to a cam that pushes the blocking component 300 to translate, thereby opening or closing the dust inlet 110. Another example is that the drive component 400 can employ a temperature control element, which can change shape upon heating, thereby causing the blocking component 300 to change position. This application does not limit the specific form of the drive component 400, nor is it limited to the above examples; any component that can drive the blocking component 300 to change state is acceptable.

[0090] Reference Figure 2 , Figure 4 In some embodiments, the dust box 10 has a self-cleaning state. It is understood that the self-cleaning state refers to the state in which the cleaning equipment connects to the base station body for self-cleaning. At this time, the base station's dust collection fan provides negative pressure to allow dirt from the cleaning equipment to enter the base station. When the dust box 10 is located on the base unit, the dust collection port 130 of the dust box 10 can connect to the collection port of the base station body.

[0091] When the dust box 10 enters the self-cleaning state, the dust collection port 130 is connected to the dust collection fan, and the drive component 400 drives the blocking component 300 to close the dust inlet 110; under the action of the dust collection fan, the air path enters the base station through the negative pressure port 120, the filter component 200, and the dust collection port 130 to clean the filter component 200.

[0092] The specific process is as follows:

[0093] After the cleaning equipment body and dust box 10 return to the base station and complete docking, the base station's dust collection fan starts; the drive component 400 of the dust box 10 starts simultaneously, and the drive component 400 pushes the blocking component 300 to close the dust inlet 110, preventing the dust inlet 110 from communicating with the inside of the housing 100. At this time, the inside of the housing 100 is only connected to the negative pressure port 120 and the dust collection port 130.

[0094] At this time, under the action of the dust collection fan, the airflow carries the dirt inside the dust box 10 into the housing 100 through the negative pressure port 120, and after passing through the filter assembly 200, it is discharged from the dust collection port 130 and introduced into the base station body.

[0095] Understandably, in the relevant technology, the side of the filter component 200 that is contaminated with dirt faces the dust collection port 130. In the above process, the airflow direction is opposite to the airflow direction of the cleaning equipment during cleaning operations. The airflow in the self-cleaning state can exert a continuous peeling force on the dirt such as particles and hair attached to the HEPA filter surface, causing it to detach from the filter component 200 and enter the dust collection bag of the base station body with the airflow.

[0096] Reference Figure 2 , Figure 4 It should be noted that during the above process, the dust inlet 110 is blocked by the blocking component 300, and there is no mixing with the outside air, thereby ensuring that the force of the dust collection fan can be applied to the filter component 200 as much as possible, and ensuring that the dirt on the filter component 200 can enter the dust collection bag.

[0097] The dust box 10 provided in this embodiment, by setting a blocking component 300 and a driving component 400 for driving the blocking component 300, can close the negative pressure port 120 in the cleaning state, thereby improving the airtightness inside the box 100 and ensuring that the airflow used for dust collection can flow through the filter component 200 into the dust collection bag, thus achieving self-cleaning of the filter component 200. The above process does not require manual operation by the user, improving the user experience. Furthermore, by collecting dirt through airflow, compared to manual cleaning by the user, the filter mesh gaps of the filter component 200 can be deeply cleaned, improving the self-cleaning effect and facilitating the next operation of the cleaning equipment.

[0098] Reference Figure 4 In some embodiments, the blocking assembly 300 includes a baffle 310 and a blocking member 320, the blocking member 320 being movably disposed within the housing 100. The baffle 310 is rotatably connected to the housing 100 and is used to open or close the dust inlet 110. The baffle 310 is a rigid thin plate, the shape of which is adapted to the dust inlet 110, and can be a rectangular or curved plate.

[0099] In some embodiments, the blocking assembly 300 further includes a rotating shaft, and the housing 100 has a rotating hole corresponding to the rotating shaft inside; the baffle 310 is rotatably connected to the housing 100 via the rotating shaft to open or close the dust inlet 110. That is, the left and right ends of the baffle 310 may be provided with rotating shafts 450, which are embedded in the rotating holes in the inner wall of the housing 100 to achieve rotational movement around the shaft.

[0100] It is understandable that when the dust box 10 is in working condition, the baffle 310 is swung and opened into the box 100 by the negative pressure difference generated by the negative pressure fan; in the self-cleaning state, it is limited by the blocking member 320 and kept in a closed position, thereby sealing the dust inlet 110 and blocking the external airflow from entering the box 100 through the dust inlet 110.

[0101] The blocking member 320 can be a block-shaped or columnar structure. The blocking member 320 slides within the housing 100 along a preset trajectory. For example, the blocking member 320 can slide along a straight trajectory or a curved trajectory; this embodiment does not limit this, nor is it limited to the above example. The following description uses the example of the blocking member 320 moving along a straight trajectory.

[0102] Specifically, the sliding direction of the blocking member 320 can be perpendicular to the axial direction of the rotation shaft and towards the baffle 310, so that when blocking the baffle 310, the moving distance of the blocking member 320 is small. For example, the material of the blocking member 320 can be wear-resistant engineering plastic or lightweight aluminum alloy, and the surface can also be provided with an anti-scratch coating to prevent dirt from scratching and damaging the blocking member 320.

[0103] Furthermore, the movable arrangement of the blocking member 320 includes, but is not limited to: slidingly engaging with the guide rail, nesting within the guide shaft, or being confined between a pair of parallel guide plates. This application embodiment does not limit this, nor is it limited to the examples described above.

[0104] As an alternative implementation, the drive component 400 has different forms, which are described in detail below.

[0105] Reference Figure 5 , Figure 6 In some embodiments, the drive assembly 400 includes a thermal element 410 and a heating element. The two ends of the thermal element 410 are fixedly connected to the blocking element 320 and the inner wall of the housing 100, respectively. The heating element is connected to the thermal element 410 and is used to provide heat.

[0106] The thermistor 410 may be a metal alloy wire or bimetallic sheet with a positive temperature coefficient of thermal expansion, or a waxy thermal expansion element (such as a paraffin-aluminum composite column), or a polymer-based thermotropic expansion material (such as a silicone rubber composite containing microcapsule phase change material). Optionally, the thermistor 410 may be a nickel-titanium shape memory alloy (NiTi SMA).

[0107] The heating element can be a miniature thick-film resistance heating element or a wound nickel-chromium heating wire. The heating element can be attached to the outer periphery of the thermistor 410 or wound coaxially with it. It should be noted that the embodiments of this application include, but are not limited to, structures that directly provide heat, and structures that indirectly generate heat. For example, the heating element is a motor, which releases heat during rotation, thus providing heat to the thermistor 410. Alternatively, the heating element can be a circuit structure, which can accept different currents. When the current increases, the circuit structure releases heat, also providing heat to the thermistor 410. The embodiments of this application do not limit the specific form of the heating element, nor are they limited to the examples described above.

[0108] The thermal element 410 is configured to control the blocking element 320 to move closer to or further away from the baffle 310 based on the extension or retraction of the heating element. It can be understood that the thermal element 410 can be connected to the blocking element 320, in which case the extension length of the thermal element 410 can be the same as the translational magnitude of the blocking element 320, thereby changing the distance between the blocking element 320 and the baffle 310. Furthermore, the thermal element 410 can be amplified through a transmission structure such as a lever amplification mechanism, thereby reducing the requirements on the deformation of the thermal element 410 and reducing the power consumption of the heating element.

[0109] When the dust box 10 enters the self-cleaning state, the heating element provides heat and the temperature of the thermal element 410 rises. The thermal element 410 stretches and drives the blocking assembly 300 to move closer to the baffle 310, causing the blocking element 320 to block the rotation of the baffle 310. In this process, the heating element is the energy input end, converting electrical energy into heat energy; the thermal element 410, as the energy conversion and displacement output unit, converts heat energy into controllable mechanical elongation; this elongation directly drives the blocking element 320 to generate displacement through a rigid connection; the displacement of the blocking element 320 is converted into a physical constraint on the rotational degree of freedom of the baffle 310, thereby realizing the state switching. The above process does not require external signal feedback closed loop, but only relies on the material's own characteristics to respond, resulting in high reliability.

[0110] With the above configuration, the heat-sensitive element 410 is stretched under heating and converted into the translation of the blocking element 320, which restricts the rotational freedom of the baffle 310 and thus closes the dust inlet 110. In this way, the dust inlet 110 cannot be opened under negative pressure, and the airflow can only flow through the path of dust collection port 130-filter assembly 200-negative pressure port 120.

[0111] In this way, the reverse airflow can act stably and continuously on the surface of the filter element 200 to clean the dirt on the filter element 200, which solves the technical problem of insufficient convenience caused by manual cleaning in related technologies, and achieves a simple structure and stable response, which can improve the user experience.

[0112] In some other embodiments, the drive assembly 400 includes a drive element having a fixed end and an output end, the output end being movable relative to the fixed end.

[0113] The driving component can be selected as a power unit with electromechanical conversion function. The fixed end of the driving component is fixed to the inner wall of the housing 100, and the output end of the driving component can extend or retract axially or perform linear reciprocating motion. It can be understood that the output end can be directly or indirectly connected to the blocking component 320 through mechanical connections (such as threaded pairs, snap-fit, pins or flexible connectors).

[0114] It should be noted that the specific implementation forms of the drive component include, but are not limited to: a micro DC motor with a lead screw and nut mechanism, a solenoid actuator, a pneumatic / hydraulic cylinder, etc. The embodiments of this application do not limit the specific form of the drive component, nor are they limited to the examples described above.

[0115] Reference Figure 2 , Figure 4 as well as Figure 6 When the dust box 10 enters the self-cleaning state, the driving component drives the blocking component 320 to move close to the baffle 310, so that the blocking component 320 blocks the baffle 310 from rotating.

[0116] During this process, the driving component acts as a power source, converting electrical energy into kinetic energy. Through the displacement of the output end, it pushes the blocking component 320 closer to the baffle 310, so that the blocking component 320 applies a blocking force to the baffle 310, thereby restricting the rotation of the baffle 310.

[0117] With the above configuration, when the dust box 10 enters the self-cleaning state, the drive unit receives the start-up electrical signal, causing its output end to extend relative to the fixed end, and driving the blocking member 320 to move closer to the baffle 310. After the blocking member 320 reaches and contacts the baffle 310, it applies a continuous normal constraint force, preventing the baffle 310 from rotating, thereby sealing the dust inlet 110. In this way, the dust inlet 110 cannot be opened under negative pressure, and the airflow can only pass through the path of dust collection port 130 - filter assembly 200 - negative pressure port 120.

[0118] In this way, the reverse airflow can act stably and continuously on the surface of the filter element 200 to clean the dirt on the filter element 200, which solves the technical problem of insufficient convenience caused by manual cleaning in related technologies, and achieves a simple structure and stable response, which can improve the user experience.

[0119] It is understood that different types of drive components 400 do not affect the core solution of the embodiments of this application, and other drive components 400 that can move the blocking member 320 not mentioned in the text are all within the protection scope of the embodiments of this application. The following example uses a drive component 400 that includes a thermal element 410 and a heating element.

[0120] Reference Figure 1 , Figure 3 as well as Figure 5 As an optional implementation, the dust box 10 also has a working state. The working state of the dust box 10 refers to the dust box 10 being used to collect dirt. As can be seen from the foregoing, when the cleaning equipment is in the process of cleaning, the negative pressure fan of the cleaning equipment operates and sucks external dirt into the dust box 10 through the suction port of the machine body, thereby achieving the suction of dirt.

[0121] It is understandable that the working state and the self-cleaning state are two switchable states.

[0122] Reference Figure 1 , Figure 3 as well as Figure 5 When the dust box 10 enters the working state, the dust inlet 110 is connected to the negative pressure fan, the dust collection port 130 is closed, and the drive assembly 400 drives the blocking member 320 to move away from the dust inlet 110, so that the blocking member 320 opens the dust inlet 110.

[0123] Under the action of the negative pressure fan, dirt outside the dust inlet 110 enters the housing 100 through the dust inlet 110 to clean the surface to be cleaned.

[0124] When the dust box 10 enters the working state, the drive assembly 400 outputs the blocking component 320 in the opposite direction to release the restriction on the baffle 310. At this time, the dust inlet 110 is fully exposed, and the airflow path is unobstructed. Thus, under the action of the negative pressure fan of the cleaning equipment, outside air carrying dust particles enters the housing 100 through the dust inlet 110 and passes through the filter assembly 200. Among them, dust and other dirt are trapped on the windward side of the filter assembly 200, and the air passes through the filter assembly 200 and flows to the negative pressure port 120, where it is sucked out by the negative pressure fan, forming an air circulation.

[0125] By setting up the above configuration, the dust inlet 110 can be opened or closed by setting up a movable blocking component 320 and a rotatable baffle 310, which solves the technical problem of insufficient convenience caused by manual cleaning in related technologies. It also achieves a simple structure, stable response, and can improve the user experience.

[0126] In addition, the above settings can also solve the technical problem that the main unit can only transfer garbage but cannot clean the filter at the same time, which leads to filter clogging, suction power reduction and cleaning efficiency decline. This allows the cleaning equipment to maintain a high airflow and high filtration efficiency during the cleaning process, which is conducive to improving the cleaning effect of the cleaning equipment.

[0127] Reference Figure 5 , Figure 6 As an optional implementation, the blocking assembly 300 further includes an elastic element 420. The elastic element 420 is a mechanical energy storage element capable of generating linear or nonlinear elastic restoring force, and its structural form includes, but is not limited to, a helical compression spring, a leaf spring, a torsion spring, a rubber elastomer, or a metal bellows. In this embodiment, the elastic element 420 can be a tension spring. When the tension spring undergoes elastic deformation, it is in a stretched state; when the tension spring does not undergo elastic deformation, it is in a contracted state.

[0128] The two ends of the elastic element 420 are respectively connected between the blocking element 320 and the housing 100. For example, one end of the elastic element 420 is fixed to the inner wall of the housing 100 or a pre-set mounting base by means of a snap, welding, bonding, or screws, while the other end is connected to the blocking element 320 by means of a hook, an embedded groove, or a crimp. It should be noted that the arrangement direction of the elastic element 420 must be consistent with the movement direction of the blocking element 320.

[0129] The elastic element 420 and the drive assembly 400 are located on the same side of the blocking element 320 and away from the baffle 310. This arrangement ensures that the thrust applied by the drive assembly 400 and the restoring force released by the elastic element 420 are collinear, preventing eccentricity from causing the blocking element 320 to jam or interfere with rotation.

[0130] When the dustbin 10 enters the self-cleaning state, the drive assembly 400 drives the blocking member 320 to move toward the baffle 310, and the elastic member 420 undergoes elastic deformation. When the dustbin 10 enters the working state, the drive assembly 400 stops working, the elastic member 420 resets and drives the blocking member 320 to move away from the baffle 310.

[0131] In the above process, the drive assembly 400 provides active displacement, pushing the blocking member 320 to overcome the resistance of the elastic member 420 and move towards the baffle 310 to complete the sealing of the dust inlet 110. At this time, the elastic member 420 undergoes elastic deformation. When the drive assembly 400 removes the force, the elastic member 420 needs to recover its elastic deformation, and the resulting restoring force becomes the driving force, pushing the blocking member 320 to move in the opposite direction along the original path until it returns to its initial position, thereby automatically releasing the constraint on the baffle 310, allowing the baffle 310 to open freely under negative pressure.

[0132] With the above settings, during the process of the dust box 10 switching from the self-cleaning state to the working state, the drive component 400 does not need to be continuously powered. It can rely on the elastic element 420 to drive the blocking element 320 to automatically move away from the baffle 310, thereby quickly and reliably opening the dust inlet 110.

[0133] In addition, the elastic element 420 is arranged on the same side as the drive assembly 400 and away from the baffle 310, which can avoid the interference of the baffle 310 opening and closing when the blocking element 320 is reset, thus ensuring the smooth rotation of the baffle 310 under negative pressure.

[0134] In addition, the setting of the elastic element 420 can improve the energy consumption of the cleaning equipment, thereby increasing the working time of the cleaning equipment and improving the cleaning effect of the cleaning equipment.

[0135] Reference Figure 5 , Figure 6 As an optional implementation, the blocking assembly 300 also includes a first guide plate 430 and a second guide plate 440, which are located on the left and right sides of the blocking member 320, respectively.

[0136] The first guide plate 430 and the second guide plate 440 can be arranged in parallel, with a distance greater than the size of the blocking member 320 to allow the blocking member 320 to move. Both the first guide plate 430 and the second guide plate 440 have a limiting portion on the side facing the interior of the housing 100, and at least a portion of the blocking member 320 is located between the limiting portion and the housing 100. For example, the edge of the first guide plate 430 and the second guide plate 440 facing the interior of the housing 100 is bent to form a protrusion, or an integrally formed protrusion is provided; this protrusion serves as the limiting portion.

[0137] For example, the limiting portion may have an L-shaped, barb-shaped, or wedge-shaped cross-section for engaging with the inner wall of the housing 100 to clamp the blocking member 320. Optionally, the limiting portion may be an elastic stop bar with buffering and energy-absorbing properties to reduce the impact on the blocking member 320.

[0138] With the above configuration, the blocking member 320 can move linearly under the combined action of the first guide plate 430, the second guide plate 440, the limiting part and the housing 100, which can improve the moving accuracy of the blocking member 320 and thus improve the stability of the blocking member 320 in restricting the rotation of the baffle 310.

[0139] When the drive assembly 400 includes a thermal element 410 and a heating element, at least one of the first guide plate 430 and the second guide plate 440 is provided with a rotating shaft 450 at its end, and the thermal element 410 is wound around the rotating shaft 450.

[0140] Understandably, the rotating shaft 450 can be a solid cylindrical shaft or a hollow tube. The axis of the rotating shaft 450 can be perpendicular to the direction of movement of the blocking member 320. The thermal element 410 can be connected to the blocking member 320 after passing around the rotating shaft 450, ensuring that the thermal element 410 generates a stable and directionally controllable traction force when heated and stretched.

[0141] It should be noted that the surface of the rotating shaft 450 can be polished or nickel-plated to reduce the coefficient of friction and decrease the sliding resistance of the heat-sensitive element 410. The rotating shaft 450 can be integrally formed with the corresponding first guide plate 430 or second guide plate 440. In addition, the first guide plate 430, the second guide plate 440, the rotating shaft 450, and the housing 100 can be integrally formed to improve the structural strength of the first guide plate 430, the second guide plate 440, and the rotating shaft 450.

[0142] With the above settings, the rotating shaft 450 can reduce the sliding friction loss between the thermal element 410 and the fixed structure, thereby extending the service life of the thermal element 410 and improving the stability of the drive assembly 400, ensuring stable switching of the dust box 10 between different states.

[0143] Reference Figure 5 , Figure 6 As an optional implementation, the blocking assembly 300 further includes a rotating member 460, which has a first end 461 and a second end 462. The first end 461 is rotatably connected to the housing 100 and is located on the side of the blocking member 320 away from the baffle 310. The blocking member 320 has a communicating moving section and a locking section.

[0144] When the second end 462 is in the moving section, the drive assembly 400 drives the blocking member 320 to move closer to or away from the baffle 310, so that the dust box 10 enters the self-cleaning state or the working state.

[0145] When the second end 462 is in the locking position, the dust box 10 is in self-cleaning or working state.

[0146] As described above, the first end 461 of the rotating member 460 is the fixed end, and the second end 462 is the free end. The second end 462 can rotate relative to the first end 461. The second end 462 is used to fit into and slide along the groove on the surface of the blocking member 320.

[0147] For example, the blocking member 320 has a continuous and through groove. The moving section is a groove segment that is relatively straight, has a moving angle, or has an arc. The relatively smooth contour of the moving section allows the second end 462 to slide smoothly within it. The locking section is a groove segment with local recesses, protrusions for limiting movement, or abrupt changes in angle, such as an acute-angle bend, a U-shaped rotary groove bottom, or an annular groove with a radially narrowing opening. The contour of the locking section limits the second end 462 after it enters, preventing it from retracting on its own.

[0148] It should be noted that the surface of the blocking member 320 may be provided with a wear-resistant coating to ensure that the blocking member 320 can slide smoothly in the groove. Optionally, the locking section can also be realized by a magnetic structure, such as embedding a magnet in the locking section, and the second end 462 is provided with a corresponding magnetic structure such as metal, so as to achieve locking by magnetic attraction.

[0149] As described above, when the second end 462 is in the moving section, the drive assembly 400 can drive the blocking member 320 to move closer to or further away from the baffle 310, thereby enabling the dust inlet 110 to actively open or close. When the second end 462 is in the locking section, its position is locked, and the dust box 10 is in a self-cleaning or working state. That is, once the blocking member 320 is driven into position, the second end 462 is locked in the locking section.

[0150] It is understandable that when the second end 462 is in the locking section and the dust box 10 is in the working state, the elastic element 420 is in the state of restoring elastic deformation, and the cleaning component may not work at this time.

[0151] With the above settings, the drive component 400 outputs power only during state switching and self-cleaning states. When the second end 462 of the rotating component 460 enters the locking section, the rotational freedom of the rotating component 460 is restricted by the channel boundary, forming a self-locking mechanism. This self-locking method allows the drive component 400 to operate without continuous power, reducing the energy consumption of the cleaning equipment, increasing the cleaning operation time, and consequently reducing the number of times the cleaning equipment needs to connect to the base station, thus improving the user experience.

[0152] Reference Figure 7As an optional implementation, the blocking member 320 has a first groove segment 321, a second groove segment 322, a third groove segment 323, and a fourth groove segment 324 connected end to end. The moving section includes the second groove segment 322 and the fourth groove segment 324, and the locking section includes the first groove segment 321 and the third groove segment 323. That is, when the second end 462 enters the first groove segment 321 and the third groove segment 323, it cannot move on its own, thus forming a self-locking mechanism.

[0153] In some embodiments, the included angles of the first groove segment 321 and the third groove segment 323 are both directed toward the baffle 310. Firstly, both the first groove segment 321 and the third groove segment 323 have included angles. An included angle refers to the angle at which the groove segment changes at least once during its extension. The direction of the included angle is the direction of the opening at that included angle.

[0154] It is understandable that, since the included angles of the first groove segment 321 and the third groove segment 323 are both set towards the baffle 310, the elastic element 420, due to its elastic deformation, will cause the blocking element 320 to move away from the baffle 310. The second end 462 will be blocked by the blocking element 320 and unable to move, thus forming a self-locking mechanism. That is, the first groove segment 321 and the third groove segment 323 are used to lock the second end 462.

[0155] The included angles of the first groove segment 321 and the third groove segment 323 are opposite to those of the second groove segment 322 and the fourth groove segment 324. Specifically, the included angles of the second groove segment 322 and the fourth groove segment 324 are both away from the baffle 310. Due to the elastic deformation of the elastic element 420, the elastic element 420 will drive the blocking element 320 away from the baffle 310, thereby causing the second end 462 to slide from the second groove segment 322 to the third groove segment 323 for self-locking, or to slide from the fourth groove segment 324 to the first groove segment 321 for self-locking. In other words, the second groove segment 322 and the fourth groove segment 324 are used to allow the second end 462 to slide on the blocking element 320.

[0156] The following explanation is based on the specific situation:

[0157] Reference Figure 1 , Figure 3 , Figure 5 as well as Figure 7 First, the cleaning equipment is in working condition, the negative pressure fan is working, and the dust box 10 is in working condition. The drive assembly 400 is not working, and the shielding member is relatively moved away from the baffle 310 under the action of the elastic member 420, so as to open the dust inlet 110. At this time, the second end 462 is located in the third groove section 323;

[0158] Then, when the cleaning equipment docks with the base station body, the dust box 10 switches from the working state to the self-cleaning state. During this process, the drive component 400 operates, and the shield moves closer to the baffle 310 under the action of the drive component, while the elastic component 420 is stretched and undergoes elastic deformation. During this process, the second end 462 disengages from the third slot section 323 and moves towards the first slot section 321 via the fourth slot section 324.

[0159] Reference Figure 2 , Figure 4 , Figure 6 as well as Figure 7 Afterwards, the base station body opens the collection port, and the dust collection fan operates, at which point the dust box 10 is in a self-cleaning state. The shielding component has moved to the position of the baffle 310 and restricts the rotation of the baffle 310. The drive assembly 400 operates and maintains the position of the shielding component. The second end 462 is located within the first slot section 321, forming a self-locking mechanism.

[0160] Finally, after the cleaning equipment completes its self-cleaning process, the dust collection fan stops working. At this time, the dust box 10 switches from the self-cleaning state to the working state. During this process, the drive assembly 400 is not working, and the blocking member moves away from the baffle 310 under the action of the elastic member 420, thereby releasing the restriction on the baffle 310. During this process, the second end 462 disengages from the first groove segment 321 and moves through the second groove segment 322 toward the third groove segment 323. Finally, the second end 462 is located in the third groove segment 323.

[0161] Through the above-described design, the position of the second end 462 between different slots in the shielding component of this embodiment can map the working state of the dust box 10. Since the first slot 321 and the third slot 323 provide self-locking capability, the dust box 10 can operate in either self-cleaning or working state for an extended period. The transition area between the second slot 322 and the fourth slot 324 ensures smooth state switching. This process can be repeated cyclically, improving the continuity and stability of state switching within the dust box 10, thereby ensuring stable switching of the cleaning equipment during self-cleaning operations.

[0162] It should be noted that although the terms "first," "second," etc., are used to describe various types of information in the embodiments of this application, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. Optionally, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information.

[0163] It should be understood that the terms "comprising" or "including" indicate the presence of the previously mentioned features, steps, or operations, but do not preclude the presence, occurrence, or addition of one or more other features, steps, or operations. The terms "and / or," etc., used in this application can be interpreted as inclusive, or mean any one or any combination thereof. Optionally, "A and / or B" means "any one of the following: A; B; A and B." Additionally, the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0164] In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as these combinations of technical features do not contradict each other, they should be considered within the scope of this specification.

[0165] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0166] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A dust box, characterized in that, A cleaning device with a negative pressure fan, the cleaning device being compatible with a base station with a dust collection fan, the dust box comprising: The housing has a dust inlet, a negative pressure inlet, and a dust collection inlet that are interconnected. The negative pressure inlet is used to connect to the negative pressure fan, and the dust collection inlet is used to connect to the dust collection fan. A filter assembly is located inside the housing; the dust inlet and the dust collection port are located on one side of the filter assembly, and the negative pressure port is located on the other side. A blocking component is located inside the housing and is positioned near the dust inlet. The blocking component is used to open or close the dust inlet. A drive component is connected to the blocking component, and the drive component is used to drive the blocking component to open or close the dust inlet; the dust box has a self-cleaning state; When the dust box enters the self-cleaning state, the dust collection port is connected to the dust collection fan, and the drive component drives the blocking component to close the dust inlet; under the action of the dust collection fan, the airflow enters the base station through the negative pressure port, the filter component, and the dust collection port to clean the filter component.

2. The dust box according to claim 1, characterized in that, The blocking assembly includes a baffle and a blocking member, the blocking member being movably disposed within the housing; the baffle is rotatably connected to the housing and is used to open or close the dust inlet. The drive assembly includes a thermal element and a heating element. The two ends of the thermal element are fixedly connected to the blocking element and the inner wall of the box, respectively. The heating element is connected to the thermal element and is used to provide heat. The thermal element is configured to control the blocking element to move closer to or away from the baffle according to the extension or retraction of the heating element. When the dust box enters the self-cleaning state, the heating element provides heat and the temperature of the thermal element rises. The thermal element stretches and drives the blocking assembly to move closer to the baffle, so that the blocking element blocks the baffle from rotating.

3. The dust box according to claim 1, characterized in that, The blocking assembly includes a baffle and a blocking member, the blocking member being movably disposed within the housing; the baffle is rotatably connected to the housing and is used to open or close the dust inlet. The driving component includes a driving element, which has a fixed end and an output end, and the output end is movable relative to the fixed end. When the dust box enters the self-cleaning state, the driving member drives the blocking member to move closer to the baffle, so that the blocking member prevents the baffle from rotating.

4. The dust box according to any one of claims 1-3, characterized in that, The blocking assembly includes a baffle, a blocking component, and a rotating shaft. The blocking component is movably disposed within the housing. The housing has a rotating hole corresponding to the rotating shaft. The baffle is rotatably connected to the housing via the rotating shaft to open or close the dust inlet. The dust box also has a working state. When the dust box enters the working state, the dust inlet is connected to the negative pressure fan, the dust collection port is closed, and the drive assembly drives the blocking member to move away from the dust inlet, so that the blocking member opens the dust inlet; Under the action of the negative pressure fan, dirt outside the dust inlet enters the housing through the dust inlet to clean the surface to be cleaned.

5. The dust box according to claim 4, characterized in that, The blocking assembly further includes an elastic element, the two ends of which are respectively connected between the blocking assembly and the housing. The elastic element and the driving assembly are located on the same side of the blocking assembly and away from the baffle. When the dust box enters the self-cleaning state, the drive assembly drives the blocking member to move toward the baffle, and the elastic member undergoes elastic deformation. When the dust box enters the working state, the drive component stops working, the elastic element resets and drives the blocking element to move away from the baffle.

6. The dust box according to claim 5, characterized in that, The blocking assembly further includes a first guide plate and a second guide plate, the first guide plate and the second guide plate being located on the left and right sides of the blocking member, respectively; Both the first guide plate and the second guide plate are provided with limiting portions on the side facing the inside of the box, and at least a portion of the blocking member is located between the limiting portion and the box. When the drive assembly includes a thermal element and a heating element, at least one of the first guide plate and the second guide plate is provided with a rotating shaft at its end, and the thermal element is wound around the rotating shaft.

7. The dust box according to claim 4, characterized in that, The blocking assembly further includes a rotating member having a first end and a second end, the first end being rotatably connected to the housing and located on the side of the blocking member away from the baffle. The blocking member has a connected moving section and a locking section; When the second end is located in the moving section, the drive component drives the blocking member to move closer to or away from the baffle, so that the dust box enters the self-cleaning state or the working state; When the second end is in the locking section, the dust box is in the self-cleaning state or the working state.

8. The dust box according to claim 7, characterized in that, The blocking member has a first groove segment, a second groove segment, a third groove segment, and a fourth groove segment connected end to end. The moving segment includes the second groove segment and the fourth groove segment. The locking segment includes the first groove segment and the third groove segment. The included angles of the first groove segment and the third groove segment are both directed toward the baffle, and are opposite to the included angles of the second groove segment and the fourth groove segment. When the second end is located in the first groove section, the dust box is in the self-cleaning state; When the second end is located in the third groove section, the dust box is in the working state.

9. A cleaning device, characterized in that, Includes a body, a negative pressure fan located on the body, and a dust box as described in any one of claims 1-8; The negative pressure fan is connected to the dust inlet of the dust box.

10. A cleaning system, characterized in that, The system includes a base station and the cleaning equipment as described in claim 9, wherein the base station has a dust collection fan for docking with a dust box, the dust collection fan being selectively connected to the dust collection port of the dust box.

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