Cleaning equipment and cleaning system

Abstract

The utility model discloses cleaning equipment and a cleaning system, and the cleaning equipment comprises a machine body which is provided with an opening; the cleaning assembly extends out of the machine body through the opening; the cleaning assembly is configured to move between a retracting position and an external expansion position relative to the machine body, and the part, located outside the peripheral side of the machine body, of the cleaning assembly in the external expansion position is larger than the part, located outside the peripheral side of the machine body, of the cleaning assembly in the retracting position; the sealing and covering part is connected to the cleaning assembly, moves along with the cleaning assembly and is used for sealing and covering the opening; the sealing piece is arranged on the sealing cover piece or the machine body, at least part of the sealing piece is deformable, and the sealing piece is used for sealing a gap between the sealing cover piece and the periphery of the opening when the cleaning assembly is located at the retracting position. According to the cleaning equipment disclosed by the embodiment of the invention, the opening is sealed by the sealing part, and the gap between the sealing part and the edge of the opening is sealed by the sealing part, so that dust, liquid and the like in an external environment can be effectively prevented from entering the machine body through the opening, and the probability of problems such as short circuit and damage in the machine is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cleaning devices, and particularly to a cleaning device and a cleaning system. Background Art

[0002] With the development of technology, the types and functions of cleaning devices are becoming more and more complete. Common cleaning devices on the market include floor-sweeping robots, handheld floor scrubbers, etc.

[0003] Among them, floor-sweeping robots usually have a function of expanding the mopping cloth. When encountering a corner, a wall edge or a narrow area, the mopping cloth assembly of the floor-sweeping robot can extend outwards from the body to increase the cleaning area, make the mopping cloth closer to the edge, and achieve edge cleaning. Correspondingly, an opening is provided on the body for the mopping cloth assembly to pass through and provide an expanded moving position for the mopping cloth assembly.

[0004] However, external dust, liquid, etc. are likely to enter the machine through the opening, resulting in problems such as internal short circuits and damage of the machine, affecting the stability of the machine operation. Summary of the Utility Model

[0005] The main purpose of the present disclosure is to propose a cleaning device, aiming to solve the technical problem that currently, external dust, liquid, etc. are likely to enter the cleaning robot through the opening provided for the outward expansion of the mopping cloth assembly, resulting in internal short circuits and damage of the machine.

[0006] To achieve the above object, the present disclosure proposes a cleaning device, which includes:

[0007] A body provided with an opening;

[0008] A cleaning assembly extending out of the body through the opening; wherein, the cleaning assembly is configured to be able to move between a retracted position and an expanded position relative to the body, and when the cleaning assembly is in the expanded position, the part of it located outside the circumferential side of the body is larger than the part of it located outside the circumferential side of the body when the cleaning assembly is in the retracted position;

[0009] A cover member connected to the cleaning assembly and moving with the cleaning assembly, the cover member being used to cover the opening;

[0010] A sealing member provided on the cover member or the body, at least part of the sealing member being deformable, the sealing member being used to seal the gap between the cover member and the periphery of the opening when the cleaning assembly is in the retracted position.

[0011] In some embodiments, when the cleaning assembly is in the retracted position, the sealing member abuts against the cover member; when the cleaning assembly is in the expanded position, the sealing member contacts or disengages from the cover member.

[0012] In some embodiments, when the seal is disposed on the body, the seal is a first annular seal adapted to the opening and is arranged along the periphery of the opening;

[0013] The first annular seal includes a deformable annular abutting portion that extends toward the cover member and contacts it.

[0014] In some embodiments, the first annular seal further includes an annular connecting portion and a deformable annular supporting portion. The annular supporting portion is located outside the annular abutting portion and is spaced from the annular abutting portion. The annular abutting portion is connected to the annular supporting portion through the annular connecting portion, and the annular supporting portion is placed on the body along the periphery of the opening.

[0015] In some embodiments, the cleaning device further includes: a pressing member disposed on the body. The pressing member is configured to apply a pressing force to the first annular seal and adjust the magnitude of the pressing force to cause the annular abutting portion to tightly abut or loosen the cover member.

[0016] In some embodiments, the pressing member is an annular pressing member adapted to the first annular seal. The annular pressing member covers the first annular seal and is movable in a direction toward or away from the cover member;

[0017] A pressure-receiving structure is provided on the annular pressing member, and a pressure-applying structure adapted to the pressure-receiving structure is further provided on the cleaning device. During the process of the cleaning assembly moving from the outward-expanded position to the retracted position, the pressure-applying structure and the pressure-receiving structure are gradually docked to increase the pressing force. During the process of the cleaning assembly moving from the retracted position to the outward-expanded position, the pressure-applying structure and the pressure-receiving structure are gradually disengaged to reduce the pressing force.

[0018] In some embodiments, the number of the pressure-applying structure and the pressure-receiving structure is the same, and the setting positions of the pressure-applying structure and the pressure-receiving structure correspond to each other one by one; and / or,

[0019] A plurality of the pressure-receiving structures are provided, and the plurality of pressure-receiving structures are located on at least one side in the circumferential direction of the annular pressing member; and / or,

[0020] The pressure-bearing structure has a pressure-bearing inclined surface, and the pressure-applying structure has a pressure-applying inclined surface. When the pressure-applying structure is docked with the pressure-bearing structure, the pressure-bearing inclined surface is docked with the pressure-applying inclined surface. The pressure-bearing inclined surface of at least one of the pressure-bearing structures faces the opening, and the pressure-applying inclined surface adapted thereto faces away from the opening, and / or the pressure-bearing inclined surface of at least one of the pressure-bearing structures faces away from the opening, and the pressure-applying inclined surface adapted thereto faces the opening.

[0021] In some embodiments, the surface of the annular pressing member facing the first annular seal has an annular groove, and the annular connecting portion of the first annular seal is inserted into the annular groove to form an insertion fit with the annular groove.

[0022] In some embodiments, one of the groove wall of the annular groove and the annular connecting portion is provided with a positioning portion, and the other is provided with a positioning groove adapted to the positioning portion. The annular connecting portion is in positioning connection with the annular groove through the insertion fit of the positioning portion and the positioning groove.

[0023] In some embodiments, an annular pressing portion extends in the direction of the cover member on the annular pressing member, and the annular pressing portion is aligned with the annular abutting portion and acts on the annular abutting portion; and / or

[0024] The annular pressing member is connected with an elastic member. During the process of the cleaning assembly moving from the retracted position to the expanded position, the elastic member provides an elastic force to the annular pressing member to make the annular pressing member move away from the first annular seal, so as to reduce the pressing force.

[0025] In some embodiments, a limiting structure is provided on the body, and the limiting structure is located on the circumference of the opening to limit the movement range of the annular pressing member in the direction of facing or departing from the cover member; and / or

[0026] A positioning structure is provided on the body, and the positioning structure is arranged on the circumference of the annular pressing member to perform installation positioning on the annular pressing member.

[0027] In some embodiments, when the seal is arranged on the cover member, the seal moves with the cover member. The seal includes a second annular seal, and the second annular seal is arranged along at least part of the edge of the cover member.

[0028] In some embodiments, the body has an installation cavity communicated with the opening, and the cover member and the seal are accommodated in the installation cavity and can move in the installation cavity; and

[0029] The cavity height of the installation cavity gradually increases along the outward expansion direction of the cleaning assembly; and / or,

[0030] The thickness of the second annular seal gradually increases along the outward expansion direction of the cleaning assembly; and / or,

[0031] The machine body is provided with a first docking surface, and the second annular seal is provided with a second docking surface that docks with the first docking surface and forms an inclined surface fit. The distance between the first docking surface and the cover member gradually changes from small to large along the outward expansion direction of the cleaning assembly, and / or, the distance between the second docking surface and the machine body gradually changes from large to small along the outward expansion direction of the cleaning assembly; and / or,

[0032] The cavity wall of the installation cavity is provided with an annular sealing protrusion arranged along the periphery of the opening. The annular sealing protrusion is used to form an abutting fit with the second annular seal of the seal when the cleaning assembly is in the retracted position.

[0033] In some embodiments, the cover member includes a sleeved portion and a cover portion connected to the sleeved portion; the sleeved portion has a sleeved hole, and the cover member is sleeved on the cleaning assembly through the sleeved hole; the cover portion covers the opening, the extending direction of the cover portion is the same as the extending direction of the opening, and the extending length of the cover portion is greater than the extending length of the opening; and / or,

[0034] The cleaning device further includes a driving member. The cleaning assembly includes a cleaning member. The driving member is used to drive the cleaning member to move between the retracted position and the outward expansion position, and / or, the driving member is used to drive the cleaning member to move to clean the surface to be cleaned.

[0035] The present disclosure also proposes a cleaning system. The cleaning system includes a cleaning base station and the aforementioned cleaning device. The cleaning base station is used to maintain the cleaning device.

[0036] In the cleaning device provided by the embodiments of the present disclosure, the cleaning component is arranged to pass through an opening of the machine body for cleaning a surface to be cleaned. In a cleaning scenario, when encountering complex cleaning positions such as corners, wallsides, or narrow areas, the cleaning component may not be able to clean or the cleaning effect may be poor. The cleaning component can be controlled to move to an extended position to achieve extended cleaning. After cleaning at the complex cleaning position is completed, the cleaning component can be controlled to move to a retracted position to achieve conventional cleaning. Among them, the cover member moves with the cleaning component during its movement and always keeps the opening covered. The sealing member seals the gap between the cover member and the periphery of the opening when the cleaning component is in the retracted position. This cleaning device covers the opening with the cover member and uses the sealing member to seal the gap between the cover member and the edge of the opening, which can effectively prevent dust, liquid, etc. in the external environment from entering the machine body through the opening, reduce the probability of problems such as short circuits and damage inside the machine, and ensure the stable operation of the machine. Description of the Drawings

[0037] Figure 1 It is a schematic structural diagram of a part of the cleaning device in an embodiment of the present disclosure;

[0038] Figure 2 It is a schematic structural diagram of another part of the cleaning device in an embodiment of the present disclosure;

[0039] Figure 3 It is a schematic structural diagram of another part of the cleaning device in an embodiment of the present disclosure;

[0040] Figure 4 It is a schematic structural diagram of another part of the cleaning device in an embodiment of the present disclosure;

[0041] Figure 5 It is a schematic structural diagram of another part of the cleaning device in an embodiment of the present disclosure;

[0042] Figure 6 is Figure 5 an enlarged view of the X position in;

[0043] Figure 7 It is an assembled schematic diagram of the sealing member and the pressing member of the cleaning device in an embodiment of the present disclosure;

[0044] Figure 8 It is a disassembled schematic diagram of the cover member, the sealing member, and the pressing member of the cleaning device in an embodiment of the present disclosure from one perspective;

[0045] Figure 9 It is a disassembled schematic diagram of the cover member, the sealing member, and the pressing member of the cleaning device in an embodiment of the present disclosure from another perspective;

[0046] Figure 10 It is a partial structural schematic diagram of the cleaning component in the extended position in an embodiment of the present disclosure;

[0047] Figure 11 This is a partial structural schematic diagram of the cleaning component in the retracted position in an embodiment of the present disclosure;

[0048] Figure 12 This is a partial structural schematic diagram of the gearbox of the cleaning device in an embodiment of the present disclosure;

[0049] Figure 13 This is an assembly schematic diagram of the cover member and the seal of the cleaning device in an embodiment of the present disclosure;

[0050] Figure 14 It is Figure 13 a structural schematic diagram of the seal in the embodiment;

[0051] Figure 15 This is a structural schematic diagram of a part of the cleaning device in another embodiment of the present disclosure;

[0052] Figure 16 It is Figure 15 an enlarged view of the Y position in;

[0053] Figure 17 This is a structural schematic diagram of another part of the cleaning device in another embodiment of the present disclosure;

[0054] Figure 18 It is Figure 17 an enlarged view of the Z position in;

[0055] Explanation of the reference numerals in the drawings:

[0056]

[0057]

[0058] The realization, functional features and advantages of the present disclosure will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0059] Next, the solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0060] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present disclosure are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0061] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element present at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present at the same time.

[0062] In addition, the descriptions involving "first", "second", etc. in the present disclosure are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present disclosure.

[0063] To solve the technical problems pointed out in the above background art, an embodiment of the present disclosure provides a cleaning device. Referring to Figures 1 to 5 , the cleaning device includes: a body 100, a cleaning assembly 200, a cover member 300, and a sealing member 400; the body 100 is provided with an opening K; the cleaning assembly 200 extends out of the body 100 through the opening K; wherein, the cleaning assembly 200 is configured to be movable relative to the body 100 between a retracted position and an expanded position (see Figure 1 and Figure 2 , the left and right cleaning assemblies are respectively in the retracted position and the expanded position), when the cleaning assembly 200 is in the expanded position, the portion of it located outside the circumferential side of the body 100 is larger than the portion of it located outside the circumferential side of the body 100 when the cleaning assembly 200 is in the retracted position; the cover member 300 is connected to the cleaning assembly 200 and moves with the cleaning assembly 200, and the cover member 300 is used to cover the opening K; the sealing member 400 is disposed on the cover member 300 or the body 100, and at least part of the sealing member 400 is deformable and is used to seal the gap between the cover member 300 and the periphery of the opening K when the cleaning assembly 200 is in the retracted position, and the sealing member 400 is used to prevent garbage from entering the body 100 through the gap between the cover member 300 and the periphery of the opening K.

[0064] In some embodiments, when the cleaning assembly 200 is in the retracted position, the seal 400 abuts against the cover member 300; when the cleaning assembly 200 is in the expanded position, the seal 400 contacts or disengages from the cover member 300. That is to say, when the cleaning assembly 200 is in the retracted position, the seal 400 abuts against the cover member 300 (there is an interaction force between the seal 400 and the cover member 300 and the interaction force is relatively large) to ensure the sealing effect; when the cleaning assembly 200 is in the expanded position, the seal 400 may only gently contact (there is an interaction force between the seal 400 and the cover member 300 but the interaction force is relatively small) or not contact the cover member 300 at all (there is no interaction force between the seal 400 and the cover member 300), so as to minimize the resistance suffered by the cleaning assembly 200 during the movement towards the expanded position.

[0065] The cleaning device involved in this embodiment may specifically be a cleaning robot. Among them, the outer shape of the body 100 of the cleaning device can adopt various forms, such as the body 100 being a circular body, a square body, a body combining a circle and a square, etc., including but not limited to this. The body 100 is usually provided with a control system, a power system, etc., and a traveling assembly may be provided at the bottom of the body 100. Each system and component cooperate with each other to perform a cleaning operation.

[0066] An opening K is provided on the body 100, and the opening K is located on the side of the body 100 facing the surface to be cleaned. The cleaning assembly 200 is installed on the body 100 and extends out of the body 100 through the opening K to be closer to the surface to be cleaned than the body 100, and is used to contact the surface to be cleaned and clean the surface to be cleaned. The cleaning assembly 200 can be a self-rotating cleaning assembly 200, that is, while the cleaning assembly 200 is in contact with the surface to be cleaned, it also rotates itself to clean the surface to be cleaned, and can also clean the surface to be cleaned in other forms such as reciprocating motion and vibration. Exemplarily, the cleaning device further includes a driving member (such as a motor, a gearbox, etc.). The cleaning assembly 200 includes a cleaning turntable and a mop. The motor shaft is connected to the input shaft of the gearbox, and the output shaft of the gearbox is connected to the cleaning turntable. When the motor is started, it can correspondingly drive the gearbox to operate, and then drive the cleaning turntable to rotate. Generally, a mop is installed on the cleaning turntable, and the cleaning turntable wipes the surface to be cleaned through the mop when rotating. The cleaning assembly 200 is movably arranged on the body 100 and has a retracted position and an expanded position. Among them, the cleaning assembly 200 is configured to be able to move relative to the body 100 between the retracted position and the expanded position; the movement configured for the cleaning assembly 200 defined here can be that a driving power source is provided on the body 100 (which can be the driving member described above or other driving power sources), and the driving power source provides a driving force to the cleaning assembly 200 so that the cleaning assembly 200 can move relative to the body 100 between the retracted position and the expanded position. During the cleaning process of the cleaning device, when encountering complex cleaning positions such as corners, walls or narrow areas, the cleaning assembly 200 can be controlled to move to the expanded position to achieve expanded cleaning; after the cleaning of the complex cleaning position is completed, the cleaning assembly 200 can be controlled to move to the retracted position. Among them, the shape of the opening K can be set with reference to the movement track of the cleaning assembly 200. For example, when the movement track of the cleaning assembly 200 is an arc track, the opening K can be correspondingly set as an arc-shaped opening K; when the movement track of the cleaning assembly 200 is a straight track, the opening K can be correspondingly set as a straight-shaped opening K.

[0067] Among them, when the cleaning component 200 is in the expanded position, the part of it located outside the peripheral side of the body 100 is larger than the part of it located outside the peripheral side of the body when the cleaning component 200 is in the retracted position. That is, taking the exposed part of the cleaning component 200 outside the peripheral side of the body 100 as a reference quantity, the exposed part of the cleaning component 200 in the retracted position is less than the exposed part of the cleaning component 200 in the expanded position. As an example, taking the outer contour edge of the body 100 as a reference, when the cleaning component 200 is in the retracted position, the first part that the cleaning component 200 extends out from the outer contour edge of the body 100 is located outside the range of the outer contour edge of the body 100; when the cleaning component 200 is in the expanded position, the cleaning component 200 extends out a second part from the outer contour edge of the body 100, and the size of the second part is larger than the size of the first part (for example, the area of the second part is larger than the area of the first part). In other words, when the cleaning component 200 is in the retracted position, the distance between the cleaning component 200 and the center of the body 100 is the first distance, and when the cleaning component 200 is in the expanded position, the distance between the cleaning component 200 and the center of the body 100 is the second distance, and the first distance is less than the second distance. The center of the body 100 involved can be defined as the center point, the center of gravity point of the body 100, or can be defined as the central area, the central position, the central part, etc. of the body 100. And, the distance between the cleaning component 200 and the center of the body 100 can be the distance between any point on the cleaning component 200 (such as the center of rotation point of the cleaning component 200) and the center of the body 100.

[0068] The cover member 300 is connected to the cleaning component 200 and moves with the cleaning component 200. When the cleaning component 200 moves outward or retracts, the cover member 300 moves with the cleaning component 200 and simultaneously maintains the covering of the opening K. That is, when the cleaning component 200 moves to the retracted position or the expanded position, the cover member 300 always covers the opening K. Specifically, the length direction of the cover member 300 corresponds to its movement direction, and the length of the cover member 300 is greater than the length of the opening K, so that the cover member 300 can cover the opening K when it moves to any position with the cleaning component 200. Optionally, the cover member 300 can be a plate-like body and is sleeved on the cleaning component 200.

[0069] The seal 400 can be disposed on the cover member 300. Thus, the seal 400 moves along with the cover member 300 when the cover member 300 moves, and the seal 400 contacts the body 100 on the cover member 300 to seal the gap between the cover member 300 and the periphery of the opening K. Among them, when the seal 400 is disposed on the cover member 300, it can be arranged along the periphery of the cover member 300. Alternatively, the seal 400 can also be disposed on the body 100. Thus, the cover member 300 moves relative to the seal 400 during movement, and the seal 400 contacts the cover member 300 on the body 100 to seal the gap between the cover member 300 and the periphery of the opening K. Among them, when the seal 400 is disposed on the body 100, it can be arranged along the periphery of the opening K. Exemplarily, the seal 400 is disposed on one side of the body 100 facing the surface to be cleaned and is arranged along the periphery of the opening K. For example, the seal 400 is adhered to the periphery of the opening K through an adhesive.

[0070] During specific sealing, it can be that the seal 400 only seals the gap between the cover member 300 and the periphery of the opening K when the cleaning assembly 200 is in the retracted position. Alternatively, it can also be that in addition to sealing the gap between the cover member 300 and the periphery of the opening K when the cleaning assembly 200 is in the retracted position, when the cleaning assembly 200 is in other positions (such as the expanded position), the seal 400 also seals the gap between the cover member 300 and the periphery of the opening K. That is, to ensure that when the cleaning assembly 200 is in the retracted position, the gap between the cover member 300 and the periphery of the opening K is sealed. Among them, the seal 400 can be a sealing ring and is made of a flexible material such as silica gel.

[0071] The cleaning device of the present disclosure seals the opening K through the cover member 300 and uses the seal 400 to seal the gap between the cover member 300 and the edge of the opening K, which can effectively prevent garbage (such as dust and liquid, etc.) in the external environment from entering the interior of the body 100 through the opening K, reduce the probability of problems such as internal short - circuit and damage of the machine, and ensure the stable operation of the machine.

[0072] In some embodiments, at least a portion of the seal 400 is deformable. Herein, the deformability involved refers to the change in the relative positions of points in a solid under the action of an external force. When the external force is withdrawn, the solid returns to its original state, which is called "deformable". At least a portion of the seal 400 is deformable, that is, the seal 400 can be such that part of its structure can undergo deformation, or all of its structure can undergo deformation. The portion of the seal 400 that can achieve deformation can be made of an elastic material, such as silica gel, etc., or can be designed into a specific shape to facilitate compression, such as an L-shape, a U-shape, etc. The seal 400 can undergo deformation. When there is a gap between the sealing cover 300 and the periphery of the opening K, the seal 400 is clamped between the cover 300 and the body 100 and is squeezed and deformed, or the seal 400 abuts against the cover 300, thereby achieving close contact with the cover 300 or the body 100, and the sealing effect is good.

[0073] When the seal 400 is provided on the body 100, the structural design solution can be as follows:

[0074] Refer to Figures 4 to 6 , in some embodiments, when the seal 400 is provided on the body 100, the seal 400 is a first annular seal adapted to the opening K and is arranged along the periphery of the opening K; the first annular seal includes a deformable annular abutting portion 410, and the annular abutting portion 410 extends in the direction towards the cover 300 and contacts it.

[0075] On the body 100, the first annular seal contacts or disengages from the cover 300 through its annular abutting portion 410, thereby correspondingly sealing or unsealing the gap between the cover 300 and the periphery of the opening K. It should be noted that the "annular" in the first annular seal can be an annular shape with a regular shape, such as a circular ring, a square ring, an elliptical ring, etc., or can be an annular shape with an irregular shape as shown in Figure 7 .

[0076] Among them, the contact between the annular abutting portion 410 of the first annular seal and the cover 300 can include two contact states. One contact state is interference contact. In this state, the annular abutting portion 410 is deformed due to the squeezing action and generates a force with the cover 300 to form a seal; the other contact state is light contact. In this state, the shape of the annular abutting portion 410 can be the original shape and there is no force between it and the cover 300, and no seal is formed. And when the annular abutting portion 410 disengages from the cover 300, in this disengaged state, a gap is formed between the annular abutting portion 410 and the cover 300, and no contact or seal is formed.

[0077] Combined with the foregoing embodiments, when the cleaning assembly 200 is in the retracted position, the first annular seal may form a seal by means of the interference contact of its annular abutting portion 410 with the cover member 300; when the cleaning assembly 200 is in other positions (such as the expanded position), the annular abutting portion 410 of the first annular seal is in light contact with or separated from the cover member 300 to cancel the seal. Specifically, during the movement of the cleaning assembly 200, when the cleaning assembly 200 moves from the retracted position to other positions (such as the expanded position), the annular abutting portion 410 undergoes a restoration (i.e., returns to its original shape) due to the reduced extrusion effect, and the interference contact with the cover member 300 changes to light contact or separation; and, since the annular abutting portion 410 is in light contact with or separated from the cover member 300, therefore, during this movement process, the friction force between the first annular seal and the cover member 300 is small or there is no friction force, thereby forming a small or no resistance to the cleaning assembly 200, and the cleaning assembly 200 can be normally expanded. When the cleaning assembly 200 moves from other positions (such as the expanded position) to the retracted position, the annular abutting portion 410 is deformed due to the increased extrusion effect, and the light contact or separation with the cover member 300 changes to interference contact. Exemplarily, the annular abutting portion 410 may be designed as an L shape or a lying U shape, etc., so as to increase its elastic property to achieve interference contact when sealing with the cover member 300; and / or, the annular abutting portion 410 may be made of an elastic material, such as silicone rubber, etc.

[0078] Referring to Figures 6 to 9, in some embodiments, the first annular seal further includes an annular connecting portion 420 and a deformable annular supporting portion 430. The annular supporting portion 430 is located on the periphery of the annular abutting portion 410 and is spaced apart from the annular abutting portion 410. The annular abutting portion 410 is connected to the annular supporting portion 430 through the annular connecting portion 420. The annular supporting portion 430 is placed on the machine body 100 along the circumference of the opening K. In this embodiment, the first annular seal may be an integral structure, and the annular supporting portion 430, the annular connecting portion 420, and the annular abutting portion 410 included in the first annular seal may be integrally formed. When the first annular seal is installed on the machine body 100, the annular supporting portion 430 is outside the edge range of the opening K. The first annular seal is placed on the machine body 100 through the annular supporting portion 430, and the annular supporting portion 430 forms the installation support for the whole first annular seal. And the annular abutting portion 410, which is located inside the annular supporting portion 430 and is connected to it through the annular connecting portion 420, is within the edge range of the opening K and contacts or disengages from the cover member 300. Among them, the annular supporting portion 430 is deformable. When the annular supporting portion 430 deforms, it can correspondingly drive the annular abutting portion 410 to move in the direction towards the cover member 300; when the annular supporting portion 430 resumes its original shape, it can correspondingly drive the annular abutting portion 410 to move in the direction away from the cover member 300. Exemplarily, the annular supporting portion 430 can be designed as an L shape or a lying U shape, etc., so as to increase the contact area with the machine body 100 and / or increase its elastic property, making its installation more stable and achieving an interference fit with the machine body 100; and / or, the annular supporting portion 430 can be made of an elastic material, such as silicone rubber, etc.

[0079] Refer to Figures 4 to 6, in some embodiments, the cleaning device further includes: a pressing member 500 disposed on the body 100. The pressing member 500 is configured to apply a pressing force to the first annular seal and make the annular abutting portion 410 tightly abut or loosen the cover member 300 by adjusting the magnitude of the pressing force. In this embodiment, by providing the pressing member 500 to act on the first annular seal and apply a force to the first annular seal, an extrusion is formed on the first annular seal. Among them, the magnitude of the pressing force applied by the pressing member 500 to the first annular seal is adjustable. When the pressing force applied by the pressing member 500 to the first annular seal gradually increases, the extrusion effect on the annular abutting portion 410 of the first annular seal also gradually increases, and then it deforms and gradually abuts tightly against the cover member 300. When the pressing force applied by the pressing member 500 to the first annular seal gradually decreases, the extrusion effect on the annular abutting portion 410 of the first annular seal also gradually decreases, and then it resumes its shape and gradually loosens the cover member 300; at the same time, the extrusion effect on the annular supporting portion 430 of the first annular seal also gradually decreases, and it resumes its shape accordingly to drive the annular abutting portion 410 to move away from the cover member 300, thereby assisting the annular abutting portion 410 to loosen the cover member 300.

[0080] The state where the annular abutting portion 410 tightly abuts the cover member 300 can correspond to the interference contact between the annular abutting portion 410 and the cover member 300 mentioned above; while the state where the annular abutting portion 410 loosens the cover member 300 can correspond to the light contact or separation between the annular abutting portion 410 and the cover member 300 mentioned above. That is to say, in this embodiment, by adjusting the magnitude of the pressing force applied by the pressing member 500 to the first annular seal, a seal is formed or the seal is cancelled between the first annular seal and the cover member 300.

[0081] The pressing member 500 can be a transmission member that transmits a force to the first annular seal. Exemplarily, the transmission member can be a pressing block, and the pressing block is connected to a driving motor through a transmission assembly. The pressing block receives the driving power output by the driving motor and moves, and transmits a force to the first annular seal. Alternatively, the pressing member 500 can also be a driving component that provides a force to the first annular seal. Exemplarily, the driving component can be a driving cylinder, and the end of the piston rod of the driving cylinder contacts the first annular seal and applies a force to the first annular seal. The driving cylinder adjusts the magnitude of the pressing force on the pressing member 500 by controlling the extending length of its piston rod. For the above two structural forms, those skilled in the art can choose one to set, including but not limited to this.

[0082] Refer to Figures 7 to 9, in some embodiments, the pressing member 500 is an annular pressing member 500 adapted to the first annular seal. The annular pressing member 500 covers the first annular seal and can move in a direction towards or away from the cover member 300; a pressure-receiving structure S is provided on the annular pressing member 500, and a pressing structure N adapted to the pressure-receiving structure S is also provided on the cleaning device (refer to Figures 10 to 12 ), during the process of the cleaning assembly 200 moving from the outward-expanded position to the retracted position, the pressing structure N and the pressure-receiving structure S are gradually butted against each other to increase the pressing force. During the process of the cleaning assembly 200 moving from the retracted position to the outward-expanded position, the pressing structure N and the pressure-receiving structure S are gradually separated to reduce the pressing force.

[0083] The pressing member 500 adopts an annular pressing member 500, and the outer contour of the annular pressing member 500 is the same as that of the first annular seal. The pressing structure N provided on the cleaning device can be provided on the housing of its transmission part (such as the gearbox 600 mentioned in the above embodiment), and the pressing structure N can also be a protruding part formed on the housing, including but not limited to this. When the cleaning assembly 200 performs an outward expansion movement or a retraction movement, the pressing structure N will change its position as the cleaning assembly 200 moves. The pressing structure N cooperates with the pressure-receiving structure S of the annular pressing member 500 to adjust the magnitude of the pressing force exerted by the annular pressing member 500 on the first annular seal.

[0084] Specifically, when the cleaning assembly 200 moves from the retracted position to the outward-expanded position, the pressing structure N moves with the cleaning assembly 200 and gradually separates from the pressure-receiving structure S on the annular pressing member 500 and cancels the extrusion of the pressure-receiving structure S. Since the pressure-receiving structure S of the annular pressing member 500 does not receive the extrusion force of the pressing structure N, the pressing force exerted on the first annular seal is correspondingly reduced, and when the cleaning assembly 200 finally reaches the outward-expanded position, the annular abutting portion 410 of the first annular seal loosens the cover member 300 and cancels the seal; when the cleaning assembly 200 moves from the outward-expanded position to the retracted position, the pressing structure N moves with the cleaning assembly 200 and gradually contacts the pressure-receiving structure S on the annular pressing member 500 and forms an extrusion on the pressure-receiving structure S. Since the pressure-receiving structure S of the annular pressing member 500 receives the extrusion force of the pressing structure N, the pressing force exerted on the first annular seal is correspondingly increased, and when the cleaning assembly 200 finally reaches the retracted position, the annular abutting portion 410 of the first annular seal abuts tightly against the cover member 300 to form a seal. That is, in this embodiment, when the cleaning assembly 200 is retracted, a seal is automatically formed between the first annular seal and the cover member 300, and when the cleaning assembly 200 is outward-expanded, the seal between the first annular seal and the cover member 300 is automatically cancelled without manual operation, realizing automatic control and being convenient to use.

[0085] Refer to Figure 8 and Figure 12, in some embodiments, the number of the pressing structures N is the same as that of the pressed structures S, and the arrangement positions of the pressing structures N correspond one by one to the arrangement positions of the pressed structures S; and / or,

[0086] Referring to Figure 8 and Figure 10 , a plurality of pressed structures S are provided, and the plurality of pressed structures S are located on at least one side in the circumferential direction of the annular pressing member 500; and / or,

[0087] Referring to Figure 8 and Figure 12 , the pressed structure S has a pressed inclined surface Sx, and the pressing structure N has a pressing inclined surface Nx. When the pressing structure N is docked with the pressed structure S, the pressed inclined surface Sx is docked with the pressing inclined surface Nx. The pressed inclined surface Sx of at least one pressed structure S faces the opening K, and the corresponding pressing inclined surface Nx faces away from the opening K; and / or, the pressed inclined surface Sx of at least one pressed structure S faces away from the opening, and the corresponding pressing inclined surface Nx faces the opening.

[0088] Specifically, a plurality of pressed structures S and a plurality of pressing structures N with the same number can be provided, and the arrangement positions of the plurality of pressed structures S correspond one by one to the arrangement positions of the plurality of pressing structures N. When the cleaning assembly 200 moves to the retracted position, the plurality of pressing structures N are aligned with the plurality of pressed structures S one by one, and each pressing structure N correspondingly acts on one pressed structure S. Through the corresponding cooperation of the plurality of pressed structures S and the plurality of pressing structures N, the pressing operation on the annular pressing member 500 is made more stable and the work is more reliable.

[0089] Among them, when a plurality of pressed structures S are provided, the plurality of pressed structures S are located on at least one side in the circumferential direction of the annular pressing member 500. As an example, when the annular pressing member 500 has four sides along its circumferential direction, the plurality of pressed structures S are located on one side or two sides or three sides or four sides in the circumferential direction of the annular pressing member 500. Since the plurality of pressed structures S are located on at least one side in the circumferential direction of the annular pressing member 500, when the pressing mechanism N is docked with the pressed structure S, the annular pressing member 500 is correspondingly pressed from at least one side in the circumferential direction of the annular pressing member 500, so that the annular pressing member 500 transmits the pressing force to the first annular seal, and the pressing is stable and reliable.

[0090] As an alternative implementation, the pressed structure S has a pressed inclined surface Sx, and the pressing structure N is correspondingly provided with a pressing inclined surface Nx adapted to the pressed inclined surface Sx on the pressed structure S. When the pressing structure N is docked with the pressed structure S, the pressing structure N contacts the pressed inclined surface Sx of the pressed structure S through its pressing inclined surface Nx and forms an extrusion on the pressed structure S.

[0091] In the provided compression structure S and pressing structure N, it is possible that the compression inclined surface Sx of at least one compression structure S faces the opening K, while the corresponding and adapted pressing inclined surface Nx faces away from the opening K; it is also possible that the compression inclined surface Sx of at least one compression structure S faces away from the opening K, while the corresponding and adapted pressing inclined surface Nx faces the opening K.

[0092] Taking the case where there are two compression structures S as an example, it can be that the compression inclined surface Sx of one of the compression structures S faces the opening K, and the pressing inclined surface Nx adapted to the compression inclined surface Sx of this compression structure S faces away from the opening K, or the compression inclined surfaces Sx of both compression structures S face the opening K, and the pressing inclined surfaces Nx respectively adapted to the compression inclined surfaces Sx of the two compression structures S both face away from the opening K.

[0093] Or it can also be that the compression inclined surface Sx of one of the compression structures S faces away from the opening K, and the pressing inclined surface Nx adapted to the compression inclined surface Sx of this compression structure S faces the opening K, or the compression inclined surfaces Sx of both compression structures S face away from the opening K, and the pressing inclined surfaces Nx respectively adapted to the compression inclined surfaces Sx of the two compression structures S both face the opening K.

[0094] Or it can further be that the compression inclined surface Sx of one of the compression structures S faces the opening K, and the pressing inclined surface Nx adapted to the compression inclined surface Sx of this compression structure S faces away from the opening K, and the compression inclined surface Sx of the other compression structure S faces away from the opening K, and the pressing inclined surface Nx adapted to the compression inclined surface Sx of this compression structure S faces the opening K.

[0095] Referring to Figure 9 , in some embodiments, the surface of the annular pressing member 500 facing the first annular seal has an annular groove 510, and the annular connecting portion 420 of the first annular seal is inserted into the annular groove 510 to form an insertion fit with the annular groove 510. In this embodiment, the first annular seal and the annular pressing member 500 are assembled together through the insertion fit of the annular connecting portion 420 and the annular groove 510, making the pressing action of the annular pressing member 500 on the first annular seal more tight and the work more stable and reliable.

[0096] Referring to Figure 8 and Figure 9, in some embodiments, one of the groove walls of the annular groove 510 and the annular connecting portion 420 of the first annular seal is provided with a positioning portion D1, and the other is provided with a positioning groove D2 adapted to the positioning portion D1. The annular connecting portion 420 of the first annular seal is positioned and connected to the annular groove 510 through the insertion fit of the positioning portion D1 and the positioning groove D2. Optionally, the groove wall of the annular groove 510 is provided with the positioning portion D1, and the annular connecting portion 420 is provided with the positioning groove D2. A plurality of positioning portions D1 may be provided, and the plurality of positioning portions D1 are sequentially arranged along the groove wall of the annular groove 510. And, based on the positions of the plurality of provided positioning portions D1 and the groove walls of the annular groove 510 where each positioning portion D1 is located, a plurality of positioning grooves D2 are correspondingly provided. The plurality of positioning grooves D2 are in one-to-one correspondence with the plurality of positioning portions D1, and each positioning portion D1 is used for corresponding insertion into one positioning groove D2. When the annular pressing member 500 and the first annular seal are assembled, the insertion of the positioning portion D1 and the positioning groove D2 can realize the insertion positioning of the annular connecting portion 420 and the annular groove 510, thereby improving the assembly speed and efficiency; and, after the annular pressing member 500 and the first annular seal are assembled, under the insertion fit of the provided positioning portion D1 and the positioning groove D2, the assembly stability of the annular pressing member 500 and the first annular seal can also be improved.

[0097] Refer to Figure 8 and Figure 9, in some embodiments, an annular pressing member 500 is provided with an annular pressing portion 520 extending in the direction towards the cover member 300. The annular pressing portion 520 is aligned with the annular abutting portion 410 and acts on the annular abutting portion 410. Specifically, when the annular pressing member 500 presses the first annular seal, the annular pressing portion 520 directly acts on the annular abutting portion 410 of the first annular seal, and the annular abutting portion 410 is deformed under pressure with a better effect, which helps to improve the sealing effect. And / or, in some embodiments, the annular pressing member 500 is connected with an elastic member. During the process of the cleaning assembly 200 moving from the retracted position to the expanded position, the elastic member provides an elastic force (e.g., the restoring force when the elastic member is released) to the annular pressing member 500 to make the annular pressing member 500 move away from the first annular seal, so as to reduce the pressing force. It can be understood that when the cleaning assembly 200 is in the retracted position, the elastic member is in a compressed state, and when it moves to the expanded position, the elastic member is released, and the restoring force when it is released can provide power for the annular pressing member 500 to move away from the first annular seal. The elastic member can be a spring or an elastic sheet, and multiple elastic members can be provided. The multiple elastic members are arranged at intervals in sequence along the circumference of the annular pressing member 500. When the cleaning assembly 200 expands, the pressing structure N gradually disengages from the pressed structure S on the annular pressing member 500 as the cleaning assembly 200 moves, and cancels the extrusion on the pressed structure S. Since the pressed structure S on the annular pressing member 500 is not subjected to the extrusion force of the pressing structure N and under the action of the elastic force provided by the elastic member, the annular pressing member 500 moves in the direction away from the first annular seal, thereby reducing the pressing force applied to the first annular seal.

[0098] Referring to Figure 4 , in some embodiments, a limiting structure 10 is provided on the body 100. The limiting structure 10 is located on the circumference of the opening K and is used to limit the movement range of the annular pressing member 500 in the direction towards or away from the cover member 300. The limiting structure 10 can be a limiting plate. The limiting plate is installed on a bracket inside the body 100 and is located on the circumference of the opening K. A limiting portion is extendedly provided on the side of the annular pressing member 500, and the limiting portion extends into the limiting area of the limiting structure 10. When the annular pressing member 500 moves away from the first annular seal by a preset distance, the limiting plate correspondingly stops the limiting portion of the annular pressing member 500, thereby preventing the annular pressing member 500 from moving. And / or, in some embodiments, a positioning structure 20 is provided on the body 100. The positioning structure 20 is arranged around the circumference of the annular pressing member 500 and is used to install and position the annular pressing member 500. The positioning structure 20 can be a positioning plate, and multiple positioning plates are provided. The multiple positioning plates are arranged at intervals in sequence along the circumference of the annular pressing member 500. Through the provided positioning structure 20, the installation and positioning of the annular pressing member 500 on the body 100 can be realized.

[0099] When the seal 400 is disposed on the cover member 300, the structural design solution can be as follows:

[0100] Referring to Figure 13 , in some embodiments, when the seal 400 is disposed on the cover member 300, the seal 400 moves with the cover member 300. The seal 400 includes a second annular seal 440, and the second annular seal 440 is disposed along at least a part of the edge of the cover member 300.

[0101] On the cover member 300, the seal 400 contacts or disengages from the body 100 through its second annular seal 440, thereby sealing or unsealing the gap between the cover member 300 and the periphery of the opening K. It should be noted that the "annular" in the second annular seal 440 can be an annular shape with a regular shape, such as a circular ring, a square ring, an elliptical ring, etc., or can be an annular shape with an irregular shape as shown in Figure 10 .

[0102] Combined with the foregoing embodiments, when the cleaning assembly 200 is in the retracted position, the seal 400 on the cover member 300 contacts the body 100 to form a seal; when the cleaning assembly 200 is in other positions (such as the expanded position), the seal 400 on the cover member 300 disengages from the body 100 to cancel the seal. Specifically, during the movement of the cleaning assembly 200, when the cleaning assembly 200 moves from the retracted position to other positions (such as the expanded position), the cover member 300 moves accordingly, and at the same time drives the seal 400 to move. The position of the seal 400 changes, and then it disengages from the body 100 to cancel the seal; when the cleaning assembly 200 moves from other positions (such as the expanded position) to the retracted position, the cover member 300 moves accordingly, and at the same time drives the seal 400 to move. The position of the seal 400 changes, and then it contacts the body 100 to form a seal.

[0103] Referring to Figure 3 , Figure 15 and Figure 16, in some embodiments, the body 100 has a mounting cavity A communicating with the opening K, and the cover member 300 and the sealing member 400 are accommodated in the mounting cavity A and can move in the mounting cavity A; and the cavity height of the mounting cavity A gradually increases along the outward expansion direction of the cleaning assembly 200, wherein the outward expansion direction is the direction from the retracted position to the outward expansion position, and the retraction direction is opposite to the outward expansion direction. The mounting cavity A may be formed in the housing structure of the body 100. The mounting cavity A is located between the opening K and the inner shell space of the body 100, and the contour shape of the mounting cavity A is the same as the shape of the opening K. Taking the thickness direction of the body 100 as the reference direction, the mounting cavity A and the opening K are arranged in a double layer and communicate with each other. Among them, the provided mounting cavity A is used to accommodate the cover member 300 and the sealing member 400. The cover member 300 is accommodated in the mounting cavity A to correspondingly seal the opening K. When the sealing member 400 is arranged on the cover member 300, the sealing member 400 moves in the mounting cavity A along with the cover member 300, and contacts the cavity wall of the mounting cavity A to seal the gap between the cover member 300 and the periphery of the opening K; and when the sealing member 400 is arranged on the body 100, the sealing member 400 can be arranged on the cavity wall of the mounting cavity A and contact the surface of the cover member 300 to seal the gap between the cover member 300 and the periphery of the opening K.

[0104] As Figure 15 and Figure 16 shown, when the cleaning assembly 200 moves outward, when the sealing member 400 moves along with the cover member 300 in the mounting cavity A in the outward expansion direction of the cleaning assembly 200, since the cavity height of the mounting cavity A gradually increases, the second annular sealing member 440 of the sealing member 400 will gradually disengage from the cavity wall of the mounting cavity A, thereby canceling the seal. On the contrary, when the cleaning assembly 200 moves in for retraction, when the sealing member 400 moves along with the cover member 300 in the mounting cavity A in the retraction direction of the cleaning assembly 200, the second annular sealing member 440 of the sealing member 400 will gradually contact the cavity wall of the mounting cavity A, thereby forming a seal.

[0105] And / or, in some embodiments, referring to Figure 14 , the thickness of the second annular sealing member 440 gradually increases along the outward expansion direction of the cleaning assembly 200, wherein the outward expansion direction is the direction from the retracted position to the outward expansion position, and the retraction direction is opposite to the outward expansion direction. Taking the outward expansion direction of the cleaning assembly 200 as the reference direction, since the thickness of the second annular sealing member 440 of the sealing member 400 gradually increases, when the cleaning assembly 200 moves in for retraction, when the sealing member 400 moves along with the cover member 300 in the mounting cavity A in the retraction direction of the cleaning assembly 200, the second annular sealing member 440 of the sealing member 400 will adapt to and contact the cavity wall of the mounting cavity A, thereby forming a seal.

[0106] And / or, in some embodiments, the body 100 is provided with a first docking surface, and the second annular seal 440 is provided with a second docking surface for docking with the first docking surface to form an inclined surface fit. The distance between the first docking surface and the cover member 300 gradually changes from small to large along the outward expansion direction of the cleaning assembly 200; and / or, the distance between the second docking surface and the body 100 gradually changes from large to small along the outward expansion direction of the cleaning assembly 200. When the cleaning assembly 200 moves outward, and the seal 400 moves along with the cover member 300 in the installation cavity A in the outward expansion direction of the cleaning assembly 200, the second docking surface of the second annular seal 440 and the first docking surface of the body 100 gradually cancel the inclined surface fit, thereby canceling the seal. When the cleaning assembly 200 moves back, and the seal 400 moves along with the cover member 300 in the installation cavity A in the retraction direction of the cleaning assembly 200, the second docking surface of the second annular seal 440 and the first docking surface of the body 100 gradually form an inclined surface fit, thereby forming a seal. And / or, referring to Figure 17 and Figure 18 , in some embodiments, the cavity wall of the installation cavity A is provided with an annular sealing protrusion Mt arranged along the periphery of the opening K. The annular sealing protrusion Mt is used to form an abutting fit with the second annular seal 440 of the seal 400 when the cleaning assembly 200 is in the retracted position. Among them, the annular sealing protrusion Mt can be an elastic protrusion and can be made of materials such as silica gel. By the provided annular sealing protrusion Mt abutting against the second annular seal 440 of the seal 400, the gap between the second annular seal 440 and the cavity wall of the installation cavity A can be avoided, thereby improving the sealing effect.

[0107] Through the above setting methods (including: the cavity height of the installation cavity A, the thickness of the second annular seal 440, the distance between the first docking surface and the cover member 300, the distance between the second docking surface and the body 100, etc.), the resistance when the cleaning assembly 200 moves from the retracted position to the outward expansion position can be reduced, ensuring the outward expansion efficiency of the cleaning assembly.

[0108] Referring to Figure 13, in some embodiments, the capping member 300 includes a sleeving portion 310 and a capping portion 320 connected to the sleeving portion 310; the sleeving portion 310 has a sleeving hole Tk, and the capping member 300 is sleeved on the cleaning assembly 200 through the sleeving hole Tk; the capping portion 320 caps the opening K, the extending direction of the capping portion 320 is the same as that of the opening K, and the extending length of the capping portion 320 is greater than that of the opening K. The capping member 300 is composed of the sleeving portion 310 and the capping portion 320. Optionally, the sleeving portion 310 and the capping portion 320 are integrally formed. The sleeving portion 310 is annular, with a sleeving hole Tk in the middle. The capping portion 320 surrounds the periphery of the sleeving portion 310 and is connected to the sleeving portion 310. The capping member 300 is sleeved on the cleaning assembly 200 through the sleeving hole Tk of its sleeving portion 310, so as to realize the connection with the cleaning assembly 200; in addition, the capping member 300 caps the opening K through its capping portion 320. Exemplarily, the capping portion 320 is a symmetric structure provided relative to the sleeving portion 310.

[0109] And / or, in some embodiments, the cleaning device further includes a driving member (such as a motor and a gearbox 600), the cleaning assembly 200 includes a cleaning member (such as a cleaning turntable and a mop), and the driving member is configured to drive the cleaning member to move between a retracted position and an expanded position, and / or the driving member is configured to drive the cleaning member to move to clean the surface to be cleaned. Specifically, the function of the driving member is: to drive the cleaning member to move between the retracted position and the expanded position, or to drive the cleaning member to move to clean the surface to be cleaned, or to both drive the cleaning member to move between the retracted position and the expanded position and drive the cleaning member to move to clean the surface to be cleaned.

[0110] Exemplarily, the driving member can be a driving motor. The housing of the gearbox 600 can be connected to the sleeving portion 310, and the output shaft of the gearbox 600 can pass through the sleeving hole Tk and be connected to the cleaning assembly 200.

[0111] When the driving member is used to drive the cleaning member to move between the retracted position and the expanded position, a first transmission assembly may be connected between the output shaft of the driving motor and the cleaning member to convert the rotational motion of the driving motor into an arc motion or a linear motion, thereby driving the cleaning member to move along an arc trajectory or a linear trajectory. For example, the first transmission assembly may be a lead screw assembly, the lead screw of the lead screw assembly is connected to the rotating shaft of the driving motor, and the nut seat on the lead screw is connected to the cleaning member. Another example is that the first transmission assembly may be a gear and rack assembly, the gear is connected to the rotating shaft of the driving motor, and the rack engaged with the gear is connected to the cleaning member. When the movement trajectory of the cleaning member is an arc trajectory, the rack can correspondingly adopt an arc rack; when the movement trajectory of the cleaning member is a linear trajectory, the rack can correspondingly adopt a straight rack. When the driving member drives the cleaning member to move to clean the surface to be cleaned, a second transmission assembly may be connected between the output shaft of the driving motor and the cleaning member to transmit the rotational motion of the driving motor to the cleaning member, thereby driving the cleaning member to move to clean the surface to be cleaned. For example, the second transmission assembly may be a gearbox, the input shaft of the gearbox is connected to the rotating shaft of the driving motor, and the output shaft of the gearbox is connected to the cleaning member. When the driving member not only drives the cleaning member to move between the retracted position and the expanded position, but also drives the cleaning member to move to clean the surface to be cleaned, the driving motor is connected to a reciprocating lead screw through a one-way bearing, and the reciprocating lead screw is connected to the cleaning member for driving the cleaning member to retract or expand. At the same time, the driving motor is also connected to the cleaning member through other transmission structures for driving the cleaning member to move to clean the surface to be cleaned. Specifically, when the driving motor continuously rotates forward, the one-way bearing drives the reciprocating lead screw to start running, and the cleaning member will reciprocate between the retracted position and the expanded position. At the same time, the forward rotation of the driving motor drives the cleaning member to move, and the cleaning member rotates forward to clean the surface to be cleaned; when the cleaning member reaches the expanded position, the control motor is switched from forward rotation to reverse rotation. Due to the one-way bearing (a one-way bearing is a bearing that can rotate freely in one direction and is locked in the other direction), the transmission of the reciprocating lead screw is stopped and the reciprocating lead screw stops running, and the cleaning member correspondingly stops moving and will no longer retract, but the reverse rotation of the driving motor still drives the cleaning member to move, and the cleaning member rotates in reverse to clean the surface to be cleaned.

[0112] The embodiments of the present disclosure also provide a cleaning system, which includes a cleaning base station and the cleaning device described in the foregoing embodiments. The cleaning base station is used to maintain the cleaning device, and the maintenance types include but are not limited to charging, dust collection, cleaning member cleaning, replenishing clean water, pumping out sewage, etc. Specifically, the base station can charge the battery of the cleaning device, can also suck the garbage in the dust box of the cleaning device into its own dust bag, can also clean the cleaning members of the cleaning device (including but not limited to mopping cloth, rolling brush, side brush, etc.), can also replenish clean water into the clean water tank of the cleaning device and pump out the sewage in the sewage tank of the cleaning device. For the specific structure of the cleaning device, refer to the foregoing embodiments. Since this cleaning system adopts all the technical solutions of all the foregoing embodiments, it has at least all the technical effects brought by the technical solutions of the foregoing embodiments, which will not be elaborated here one by one.

[0113] The above are only partial or preferred embodiments of the present disclosure. Neither the text nor the drawings can limit the scope of protection of the present disclosure. Any equivalent structural transformation made by using the content of the specification and drawings of the present disclosure under the overall concept of the present disclosure, or any direct / indirect application in other related technical fields is included in the scope of protection of the present disclosure.

Claims

1. A cleaning device, characterized in that, Comprising: A body provided with an opening; A cleaning assembly extending out of the body through the opening; wherein, the cleaning assembly is configured to be movable relative to the body between a retracted position and an expanded position, and when the cleaning assembly is in the expanded position, the portion of it located outside the circumferential side of the body is larger than the portion of it located outside the circumferential side of the body when the cleaning assembly is in the retracted position; A cover member connected to the cleaning assembly and moving therewith, the cover member being used to cover the opening; A seal provided on the cover member or the body, at least part of the seal being deformable, the seal being used to seal the gap between the cover member and the peripheral edge of the opening when the cleaning assembly is in the retracted position.

2. The cleaning device according to claim 1, wherein, When the cleaning assembly is in the retracted position, the seal abuts against the cover member; when the cleaning assembly is in the expanded position, the seal contacts or disengages from the cover member.

3. The cleaning device according to claim 2, wherein When the seal is provided on the body, the seal is a first annular seal adapted to the opening and arranged along the peripheral edge of the opening; The first annular seal includes a deformable annular abutting portion extending towards the cover member and contacting it.

4. The cleaning device according to claim 3, wherein, The first annular seal further includes an annular connecting portion and a deformable annular supporting portion. The annular supporting portion is located outside the annular abutting portion and is spaced from the annular abutting portion. The annular abutting portion is connected to the annular supporting portion through the annular connecting portion, and the annular supporting portion is placed on the body along the peripheral edge of the opening.

5. The cleaning device according to claim 3, characterized in that, The cleaning device further includes: a pressing member provided on the body, the pressing member being used to apply a pressing force to the first annular seal and making the annular abutting portion abut against or loosen the cover member by adjusting the magnitude of the pressing force.

6. The cleaning device according to claim 5, characterized in that, The pressing member is an annular pressing member adapted to the first annular seal, the annular pressing member covering the first annular seal and being movable in a direction towards or away from the cover member; A pressure-receiving structure is provided on the annular pressing member, and a pressure-applying structure adapted to the pressure-receiving structure is also provided on the cleaning device. During the process of the cleaning assembly moving from the expanded position to the retracted position, the pressure-applying structure and the pressure-receiving structure are gradually butted against each other to increase the pressing force. During the process of the cleaning assembly moving from the retracted position to the expanded position, the pressure-applying structure and the pressure-receiving structure are gradually disengaged from each other to reduce the pressing force.

7. The cleaning device according to claim 6, characterized in that The number of the pressure-applying structure and the pressure-receiving structure is the same, and the setting position of the pressure-applying structure corresponds to the setting position of the pressure-receiving structure one by one; and / or, A plurality of the pressure-receiving structures are provided, and the plurality of pressure-receiving structures are located on at least one side in the circumferential direction of the annular pressing member; and / or The pressure-bearing structure has a pressure-bearing inclined surface, and the pressure-applying structure has a pressure-applying inclined surface. When the pressure-applying structure is docked with the pressure-bearing structure, the pressure-bearing inclined surface is docked with the pressure-applying inclined surface. The pressure-bearing inclined surface of at least one of the pressure-bearing structures faces the opening, and the pressure-applying inclined surface adapted thereto faces away from the opening, and / or the pressure-bearing inclined surface of at least one of the pressure-bearing structures faces away from the opening, and the pressure-applying inclined surface adapted thereto faces the opening.

8. The cleaning device according to claim 6, characterized in that, The surface of the annular pressing member facing the first annular seal has an annular groove, and the annular connecting portion of the first annular seal is inserted into the annular groove to form an insertion fit with the annular groove.

9. The cleaning device according to claim 8, characterized in that One of the groove wall of the annular groove and the annular connecting portion is provided with a positioning portion, and the other is provided with a positioning groove adapted to the positioning portion. The annular connecting portion realizes the positioning connection with the annular groove through the insertion fit of the positioning portion and the positioning groove.

10. The cleaning device according to claim 6, wherein The annular pressing member extends in the direction facing the cover member and is provided with an annular pressing portion. The annular pressing portion is aligned with the annular abutting portion and acts on the annular abutting portion; and / or The annular pressing member is connected with an elastic member. During the process of the cleaning assembly moving from the retracted position to the outward-expanded position, the elastic member provides an elastic force to the annular pressing member to make the annular pressing member move away from the first annular seal, so as to reduce the pressing force.

11. The cleaning device according to claim 6, characterized in that, The machine body is provided with a limiting structure, and the limiting structure is located on the circumference of the opening to limit the movement range of the annular pressing member in the direction facing or away from the cover member; and / or The machine body is provided with a positioning structure, and the positioning structure is arranged on the circumference of the annular pressing member to perform installation positioning on the annular pressing member.

12. The cleaning device according to claim 2, characterized in that, When the seal is arranged on the cover member, the seal moves with the cover member. The seal includes a second annular seal, and the second annular seal is arranged along at least part of the edge of the cover member.

13. The cleaning device according to claim 12, characterized in that, The machine body has an installation cavity communicated with the opening, and the cover member and the seal are accommodated in the installation cavity and can move in the installation cavity; and The cavity height of the installation cavity gradually increases along the outward-expansion direction of the cleaning assembly; and / or The thickness of the second annular seal gradually increases along the outward-expansion direction of the cleaning assembly; and / or The machine body is provided with a first docking surface, and the second annular seal is provided with a second docking surface that docks with the first docking surface and forms an inclined surface fit. The distance between the first docking surface and the cover member gradually changes from small to large along the outward-expansion direction of the cleaning assembly, and / or the distance between the second docking surface and the machine body gradually changes from large to small along the outward-expansion direction of the cleaning assembly; and / or The cavity wall of the installation cavity is provided with an annular sealing protrusion arranged along the periphery of the opening, and the annular sealing protrusion is used to form an abutting fit with the second annular seal of the seal when the cleaning assembly is in the retracted position.

14. The cleaning device according to any one of claims 1-13, characterized in that, The cover member includes a sleeved portion and a cover portion connected to the sleeved portion; the sleeved portion has a sleeved hole, and the cover member is sleeved on the cleaning assembly through the sleeved hole; the cover portion covers the opening, the extending direction of the cover portion is the same as the extending direction of the opening, and the extending length of the cover portion is greater than the extending length of the opening; and / or The cleaning device further includes a driving member, the cleaning assembly includes a cleaning member, the driving member is used to drive the cleaning member to move between the retracted position and the expanded position, and / or the driving member is used to drive the cleaning member to move to clean the surface to be cleaned.

15. A cleaning system, characterized in that, It includes a cleaning base station and the cleaning device according to any one of claims 1 to 14, and the cleaning base station is used to maintain the cleaning device.

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