Cleaning device

Abstract

The utility model discloses a cleaning device. The cleaning device comprises a machine body and a cleaning assembly. Wherein the cleaning assembly is mounted at the bottom of the machine body; the cleaning assembly is provided with a first position, a second position and a third position, wherein the first position expands outwards to the outer edge at least partially protruding out of the machine body and is attached to the cleaned face, the second position is retracted inwards to the inner side of the machine body and is attached to the cleaned face, and the third position is retracted inwards to the inner side of the machine body and ascends to the position spaced from the cleaned face by a preset distance. The cleaning device at least can solve the problems that in the prior art, a cleaning assembly of a cleaning device is low in working efficiency and coverage rate in a complex and changeable working environment.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a cleaning device. Background Art

[0002] At present, household cleaning devices such as sweeping robots, floor washing robots, and sweeping and mopping robots have become increasingly popular, reducing the burden of human housework. When the cleaning device performs cleaning work, the cleaning device contacts the ground to be cleaned to clean it.

[0003] In existing technologies, cleaning equipment typically operates in indoor environments, such as homes. Indoor environments are relatively complex, with difficult-to-clean areas like corners. However, the cleaning components in cleaning devices are typically installed in fixed locations, making it difficult to ensure efficiency and coverage in complex and changing working environments. Utility Model Content

[0004] The main purpose of the utility model is to provide a cleaning device, which at least solves the problem of low working efficiency and coverage of the cleaning components of the cleaning devices in the prior art under complex and changeable working environments.

[0005] According to one aspect of the present invention, there is provided a cleaning device comprising:

[0006] body;

[0007] A cleaning assembly is mounted on the bottom of the body, the cleaning assembly having a first position in which the cleaning assembly is expanded outward to at least partially protrude from the outer edge of the body and abut against the surface to be cleaned, a second position in which the cleaning assembly is retracted inward to the inner side of the body and abut against the surface to be cleaned, and a third position in which the cleaning assembly is retracted inward to the inner side of the body and rises to a predetermined distance from the surface to be cleaned.

[0008] Furthermore, the cleaning device also includes a driving component and a lifting transmission component, the driving component drives the cleaning component to move in a first direction and cooperates with the transmission action of the lifting transmission component to drive the cleaning component to switch between the first position, the second position and the third position.

[0009] Furthermore, the driving assembly includes:

[0010] a driving member, the driving member being arranged on the body;

[0011] A follower, the follower is connected to the cleaning component, the follower is connected to the driving component and moves along the first direction under the drive of the driving component, the lifting transmission component drives the cleaning component to descend when the cleaning component switches from the third position to the second position or drives the cleaning component to rise when the cleaning component switches from the second position to the third position.

[0012] Furthermore, the driving member includes a motor, the driven member includes a rack, the rack extends along the first direction, a gear is sleeved on the output shaft of the motor, and the gear is engaged with the rack.

[0013] Furthermore, the cleaning assembly is arranged at the bottom of the driven member, and the lifting transmission assembly includes:

[0014] a first guide portion, the first guide portion being disposed on the follower, and the first guide portion being provided with a first inclined surface;

[0015] a second guide portion, the second guide portion being located on a side of the driven member facing away from the cleaning assembly, the second guide portion being provided with a second inclined surface having the same inclination direction as the first inclined surface, and the second guide portion being provided with a connecting member, the connecting member being movably provided through the driven member and connected to the cleaning assembly;

[0016] Wherein, the follower drives the first guide part to move along the first direction under the drive of the driving part, so that the first inclined surface of the first guide part cooperates with the second inclined surface of the second guide part to drive the cleaning component to switch between the first position, the second position and the third position.

[0017] Furthermore, there are two of the first guide parts and two of the second guide parts, the two first guide parts are respectively arranged at two ends of the follower along the first direction, and the second guide parts are arranged in a one-to-one correspondence with the first guide parts.

[0018] Furthermore, the follower is provided with an elongated hole, the length direction of the elongated hole is consistent with the first direction, and the connecting member is movably inserted into the elongated hole.

[0019] Furthermore, one end of the elongated hole extends to the inner side of the first guide portion, and the second guide portion includes a guide block, and the guide block is provided with the second inclined surface.

[0020] Furthermore, one end of the elongated hole extends to the inner side of the first guide portion, the second guide portion includes a main body and at least two guide columns, the connecting member is connected to the main body, the two guide columns are connected to the main body and are located on opposite sides of the connecting member, and the second inclined surface is provided on the guide column.

[0021] Furthermore, when the cleaning assembly is located at the third position, the minimum distance L1 between the cleaning assembly and the body satisfies the relationship: L1 ≥ 10.6 mm;

[0022] When the cleaning assembly is located at the first position or the second position, a maximum distance L2 between the cleaning assembly and the body satisfies the relationship: L2≤18.0 mm.

[0023] In the present invention, a cleaning assembly is mounted on the bottom of the body to facilitate floor cleaning. The cleaning assembly retracts into the inner side of the body and rises to a third position, spaced a predetermined distance from the surface being cleaned. When the cleaning device is stopped, the cleaning assembly avoids contact with the floor, reducing deformation and wear of the cleaning assembly, reducing the risk of damage to the cleaning assembly, and extending its service life. Furthermore, when the cleaning assembly is in the third position, the cleaning device can be moved to another working environment as needed. When the cleaning device needs to sweep or mop the floor, the cleaning assembly gradually descends from the third position to a second position, where it lies in contact with the floor, to facilitate cleaning. At this point, the cleaning assembly is located inside the body. When the cleaning device is moved to a difficult-to-clean area, such as a corner or furniture edge in a room, the cleaning assembly is shifted from the second position to the first position, where it at least partially protrudes from the outer edge of the body to contact the surface being cleaned, such as the wall or furniture edge, to perform the cleaning operation. This improves the cleaning device's floor coverage and the cleaning assembly's efficiency in complex and changing working environments. When the cleaning device has completely cleaned the floor, the cleaning assembly can be retracted to the inside of the body and raised to a third position at a predetermined distance from the cleaned surface, thereby reducing the risk of damage to the cleaning assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 Schematic diagram of the cleaning assembly of the cleaning device disclosed in an embodiment of the present invention being retracted and raised (A), lowered (B), and expanded (C);

[0026] Figure 2A top view of the driving assembly and the lifting transmission assembly of the cleaning device disclosed in an embodiment of the present utility model;

[0027] Figure 3 A front view of the cooperation between the first guide portion and the second guide portion of the cleaning device disclosed in an embodiment of the present utility model;

[0028] Figure 4 A front view of the cooperation between the first guide portion and the second guide portion of the second type of cleaning device disclosed in an embodiment of the present utility model;

[0029] Figure 5 This is a schematic structural diagram of the first guide portion of the cleaning device disclosed in an embodiment of the present utility model;

[0030] Figure 6 for Figure 3 A right side view of the second guide portion;

[0031] Figure 7 for Figure 4 A right side view of the second guide portion;

[0032] Figure 8 A three-dimensional structural diagram of a cleaning device disclosed in an embodiment of the present application;

[0033] Figure 9 for Figure 8 A partial magnified view of the D area in the middle.

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

[0035] 10. Body; 20. Cleaning assembly; 30. Driving assembly; 31. Driving member; 32. Follower; 321. Rack; 322. Gear; 323. Long hole; 40. Lifting transmission assembly; 41. First guide part; 411. First inclined surface; 42. Second guide part; 421. Second inclined surface; 422. Connecting member; 423. Guide block; 424. Main body; 425. Guide column; x, first direction. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present inventive concept. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0038] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present inventive concept, unless otherwise specifically stated. It is to be understood that the actual dimensions of the parts shown in the drawings are not necessarily to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as if the techniques, methods, and apparatus were discussed in detail. In all examples shown and discussed herein, any specific values are to be interpreted as illustrative only and not as limiting. Thus, other examples of example embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that one or more aspects thereof can be identified in the drawings by reference characters alone. Additionally, as used in the specification and in the claims, the singular form of "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

[0039] As mentioned in the background, the cleaning assembly of the existing cleaning device has low working efficiency and coverage in complex working environment. Therefore, the present application provides a cleaning device. The cleaning assembly located below the machine body can be retracted and lifted into the machine body, or lowered to a position close to the ground, or expanded to a position at least partially protruding from the outer edge of the machine body, through the joint action of the driving assembly and the lifting transmission assembly, thereby improving the working efficiency and the cleaning coverage of the ground in complex working environment. The cleaning device of the present application will be described in detail below with reference to the drawings.

[0040] Referring to Figures 1 to 9 According to the embodiments of the present application, a cleaning device is provided. Specifically, the cleaning device comprises a machine body 10 and a cleaning assembly 20.

[0041] In this embodiment, the cleaning assembly 20 is installed at the bottom of the machine body 10. The cleaning assembly 20 has a first position (i.e. the C figure in Figure 1 the cleaning assembly 20 is retracted to the inner side of the machine body 10 and is close to the cleaned surface), a second position (i.e. the B figure in Figure 1 the cleaning assembly 20 is retracted to the inner side of the machine body 10 and is spaced apart from the cleaned surface by a predetermined distance), and a third position (i.e. the A figure in Figure 1 in FIG. A of

[0042] The cleaning assembly 20 is mounted at the bottom of the machine body 10 to facilitate cleaning of the ground. The cleaning assembly 20 has a third position in which it is retracted inwardly of the machine body 10 and raised to a predetermined distance from the surface to be cleaned, so that the cleaning assembly 20 is prevented from contacting the ground when the cleaning device is in a non-working state or the like, thereby reducing the risk of damage to the cleaning assembly 20 and prolonging the service life of the cleaning assembly 20. In addition, when the cleaning assembly 20 is in the third position, the cleaning device can be moved to other working environments as required. When the cleaning device needs to clean the ground and perform mopping, the cleaning assembly 20 is gradually lowered from the third position to a second position in which it is in contact with the ground to facilitate cleaning. At this time, the cleaning assembly 20 is retracted inwardly of the machine body 10. When the cleaning device needs to clean areas that are difficult to clean, such as corners of a room or edges of furniture, the cleaning assembly 20 is switched from the second position to a first position in which it at least partially protrudes outwardly of the machine body 10 to clean the surface to be cleaned, thereby improving the coverage of the cleaning device on the ground and the working efficiency of the cleaning assembly 20 in complex working environments. When the cleaning device has completed cleaning of the ground, the cleaning assembly 20 can be retracted inwardly of the machine body 10 and raised to the third position in which it is spaced apart from the surface to be cleaned by a predetermined distance, thereby reducing the risk of damage to the cleaning assembly 20.

[0043] That is, the cleaning assembly 20 of the cleaning device can be switched between the first position, the second position, and the third position as required, thereby improving the working efficiency of the cleaning assembly 20 in complex working environments and improving the coverage of the cleaning device on the surface to be cleaned.

[0044] In this embodiment, the cleaning assembly 20 can be a roller brush, a mop, a scraper, or the like. In actual production, a suitable cleaning assembly 20 can be selected as required, and the present application is not limited in this regard.

[0045] As shown in FIGS. Figure 1 , Figure 2 , Figure 8 and Figure 9 , the cleaning device further comprises a driving assembly 30 and a lifting transmission assembly 40. The driving assembly 30 and the lifting transmission assembly 40 can cooperate to drive the cleaning assembly 20 to switch between the first position (i.e., FIG. C of Figure 1 , the second position (i.e., FIG. B of Figure 1 , and the third position (i.e., FIG. A of Figure 1 ). Specifically, the lifting transmission assembly 40 is arranged between the cleaning assembly 20 and the driving assembly 30, and the driving assembly 30 drives the cleaning assembly 20 to move in a first direction (i.e., Figure 1 The cleaning assembly 20 is driven to switch between the first position, the second position and the third position in coordination with the transmission action of the lifting transmission assembly 40, thereby realizing the process of retraction, lifting and expansion of the cleaning assembly 20.

[0046] Furthermore, the driving assembly 30 includes a driving member 31 and a driven member 32. The driving member 31 is provided on the body 10. At the same time, the driven member 32 is connected to the cleaning assembly 20, and the driven member 32 is connected to the driving member 31 and moves along the first direction under the drive of the driving member 31. When the driving member 31 drives the driven member 32 to move, the lifting transmission assembly 40 drives the cleaning assembly 20 to descend when the cleaning assembly 20 switches from the third position to the second position, or drives the cleaning assembly 20 to rise when the cleaning assembly 20 switches from the second position to the third position. In this embodiment, by providing the driving assembly 30 and the lifting transmission assembly 40, and through the synergistic effect of the two, not only the adaptability and flexibility of the cleaning device are improved, but also its cleaning effect on the ground can be enhanced, bringing a better user experience to the user. In this embodiment, the lifting transmission assembly 40 can be arranged between the driven member 32 and the cleaning assembly 20. Of course, in other embodiments, the lifting transmission assembly 40 can also be arranged at other positions. As long as the lifting transmission assembly 40 can drive the cleaning assembly 20 to switch between the first position, the second position and the third position, this application does not make specific limitations.

[0047] Furthermore, the driving member 31 includes a motor, and the driven member 32 includes a rack 321, the rack 321 extends along a first direction, and a gear 322 is sleeved on the output shaft of the motor, and the gear 322 is engaged with the rack 321. When the cleaning device needs to perform a cleaning operation, the motor drives the gear 322 and the rack 321 to move, which can cooperate with the lifting transmission assembly 40 to drive the cleaning assembly 20 to rise and fall, expand outward or retract inward to switch between the first position, the second position and the third position. The structure is simple and easy to implement. Of course, in other embodiments of the present application, the driving member 31 can also be set to a driving cylinder, etc. As long as it is other deformation methods based on the concept of the present application, they are all within the scope of protection of the present application. At the same time, the use of this driving method also has good stability, so that the cleaning assembly 20 can run smoothly during operation. Specifically, when sweeping and mopping are required, the cleaning component 20 is lowered from the third position to the second position where it is in contact with the ground and located inside the body 10; when cleaning is required on hard-to-clean areas such as corners or edges of furniture, the cleaning component 20 can be further made to at least partially protrude from the outer edge of the body 10, thereby achieving efficient operation on the ground and improving cleaning coverage.

[0048] like Figure 1As shown, the cleaning assembly 20 is arranged at the bottom of the driven member 32, and the cleaning assembly 20 is connected with the lifting transmission assembly 40. When the motor drives the rack 321 and the gear 322 to engage and move in the first direction, the lifting transmission assembly 40 can be driven to drive the cleaning assembly 20 to realize lifting and lowering. Specifically, the lifting transmission assembly 40 includes a first guide portion 41 and a second guide portion 42. The first guide portion 41 is arranged on the driven member 32, and the first guide portion 41 is provided with a first inclined surface 411. The second guide portion 42 is located on the side of the driven member 32 away from the cleaning assembly 20, and the second guide portion 42 is provided with a second inclined surface 421 inclined in the same direction as the first inclined surface 411. The second guide portion 42 is provided with a connecting piece 422 movably arranged on the driven member 32 and connected with the cleaning assembly 20. The driven member 32 drives the first guide portion 41 to move in the first direction under the drive of the driving member 31, so that the first inclined surface 411 of the first guide portion 41 cooperates with the second inclined surface 421 of the second guide portion 42 to drive the cleaning assembly 20 to switch between the first position, the second position and the third position.

[0049] Referring again to Figure 1 As shown, it is assumed that the cleaning assembly 20 is in the initial position, i.e. the third position (i.e. the A position in Figure 1 At this time, the cleaning device needs to perform cleaning work, and the motor drives the gear 322 to rotate, thereby driving the rack 321 to move in the first direction. At the same time, the second inclined surface 421 of the second guide portion 42 moves relative to the first inclined surface 411 of the first guide portion 41 in the direction opposite to the first direction, thereby driving the cleaning assembly 20 to descend from the third position (i.e. the A position in Figure 1 to the second position (i.e. the B position in Figure 1 ) inside the machine body 10, and the cleaning assembly 20 starts to clean the ground. At this time, the first guide portion 41 and the second guide portion 42 are relatively stationary. When the motor continues to drive the gear 322 to rotate and the rack 321 to engage and move in the first direction, the cleaning assembly 20 switches from the second position to the first position (i.e. the C position in Figure 1C position in the figure), and the cleaning assembly 20 always remains in contact with the ground; at this time, the cleaning assembly 20 at least partially protrudes from the outer edge of the body 10 of the cleaning device, and the cleaning assembly 20 cleans difficult-to-clean areas, thereby improving the cleaning efficiency of the cleaning device on the ground. When the cleaning operation is completed, the motor drives the gear 322 to rotate, thereby driving the rack 321 to move in a direction opposite to the first direction, thereby driving the first guide portion 41 to approach the second guide portion 42. The cleaning assembly 20 always remains in contact with the ground and gradually retracts from the first position to the second position; when the rack 321 continues to move in a direction opposite to the first direction, the second inclined surface 421 of the second guide portion 42 gradually slides and rises along the first inclined surface 411 of the first guide portion 41, thereby driving the cleaning assembly 20 to be retracted and lifted to the third position. This arrangement allows the cleaning assembly 20 to switch between the first position, the second position, and the third position, which is beneficial to improving the cleaning efficiency of the cleaning device on the ground.

[0050] For example, the connecting member 422 can be a screw, nut and bolt, buckle, pin, pull rope, etc., which is used to fix the cleaning assembly to the body 10 to ensure that the cleaning assembly 20 does not loosen or fall off during operation. In this application, the connecting member 422 is preferably a screw. The screw ensures the stability and reliability of the connection between the cleaning assembly 20 and the body 10 of the cleaning device while providing convenience and economy.

[0051] Furthermore, if Figure 1 As shown, there are two first guide parts 41 and two second guide parts 42. The two first guide parts 41 are respectively provided at the two ends of the follower 32 along the first direction, and the second guide parts 42 are provided in a one-to-one correspondence with the first guide parts 41. Such an arrangement can provide stable support for the cleaning assembly 20, thereby improving the structural strength and service life of the cleaning device. Of course, in other embodiments of the present application, the number of the first guide part 41 and the second guide part 42 can also be 1, 2, or more. Considering the stability and economy of the cleaning assembly 20 during operation, the present application provides the first guide part 41 and the second guide part 42 at the two ends of the follower 32 along the first direction, thereby improving the working stability of the cleaning assembly 20.

[0052] like Figure 2 and Figure 5 As shown, the follower 32 is provided with an elongated hole 323, the length direction of which is consistent with the first direction, and the connecting member 422 is movably inserted into the elongated hole 323. In this embodiment, the provision of the elongated hole 323 enables the cleaning assembly 20 to smoothly switch positions, thereby increasing the cleaning range, improving the obstacle clearance capability, and preventing collision damage.

[0053] Furthermore, if Figure 3 、 Figure 4 as well as Figure 5 As shown, one end of the long hole 323 extends to the inner side of the first guide part 41, which is conducive to the cooperation between the second guide part 42 and the first guide part 41. Specifically, the second guide part 42 includes a guide block 423, and the guide block 423 is provided with a second inclined surface 421 (as shown in FIG. Figure 7 (shown is a right side view of the guide block 423). The first guide portion 41 and the second guide portion 42 can cooperate in various ways. For example, the guide block 423 on the second guide portion 42 is provided with a second inclined surface 421. By cooperating with the second inclined surface 421 on the guide block 423 and the first inclined surface 411 on the first guide portion 41, the cleaning assembly 20 can be more easily switched between the first position, the second position, and the third position according to actual working requirements, thereby improving the working efficiency of the cleaning device.

[0054] Further, see Figure 3 As shown, one end of the elongated hole 323 extends to the inner side of the first guide portion 41, and the second guide portion 42 includes a main body 424 and at least two guide posts 425. The connecting member 422 is connected to the main body 424, and the two guide posts 425 are connected to the main body 424 and are located on opposite sides of the connecting member 422, and a second inclined surface 421 is provided on the guide post 425. Through the cooperation between the second inclined surface 421 on the guide post 425 and the first inclined surface 411 on the first guide portion 41, it is easier to drive the cleaning component 20 to switch between the first position, the second position and the third position. Specifically, the guide posts 425 can be provided in 2, 3, 4, etc. The specific number is determined according to actual production needs and is not specifically limited in this application. Figure 6 The figure shows a case where two guide posts 425 are provided. In addition, the shape of the guide posts 425 can be cylindrical, prismatic, etc., which is not specifically limited in the present application.

[0055] like Figure 1 As shown, when the cleaning assembly 20 is in the third position, the minimum distance L1 between the cleaning assembly 20 and the body 10 satisfies the relationship: L1 ≥ 10.6 mm. For example, the minimum distance L1 between the cleaning assembly 20 and the body 10 can be 10.6 mm, 11 mm, 12 mm, etc. In the present application, the minimum distance L1 is preferably 10.6 mm. This prevents the cleaning assembly 20 from scratching the floor during movement, reduces friction and noise between the cleaning assembly 20 and the floor, facilitates movement and storage of the cleaning apparatus, and protects the cleaning assembly 20 from damage.

[0056] Furthermore, when the cleaning component 20 is in the first position or the second position, the maximum spacing L2 between the cleaning component 20 and the body 10 satisfies the relationship: L2 ≤ 18.0 mm. Optionally, the maximum spacing L2 can be 18.0 mm, 17.0 mm, 16. mm, etc. In the present application, the preferred maximum spacing L2 is 18.0 mm. At this maximum spacing, the optimal contact pressure between the cleaning component 20 and the cleaned surface can be ensured, thereby effectively cleaning dust, hair and other debris on the ground. Excessive spacing may cause the cleaning component 20 to be unable to fully contact the ground, affecting the cleaning effect. At the same time, at this maximum spacing, the jamming and entanglement of the cleaning component 20 can be reduced, thereby improving the operational stability and reliability of the cleaning device; protecting the cleaning component 20, preventing the cleaning component 20 from being damaged due to excessive pressure on the ground, and extending the service life of the cleaning component 20.

[0057] It can be seen from the above embodiments that the cleaning device of the present invention can at least achieve the following technical effects:

[0058] (1) The utility model provides a lifting transmission assembly in the body of the cleaning device, and the lifting transmission assembly includes a first guide portion and a second guide portion, and mutually parallel inclined surfaces are provided on the first guide portion and the second guide portion. Through the cooperation between the inclined surfaces, the cleaning assembly is switched between the second position and the third position, thereby achieving the retraction and lifting of the cleaning assembly; in addition, through the cooperation of the first guide portion and the second guide portion, the cleaning device can also be switched from the second position to the first position, so that the cleaning assembly is at least partially protruded from the outer edge of the body, so that hard-to-clean areas such as corners can be cleaned, thereby improving the cleaning efficiency of the cleaning device in complex and changeable environments;

[0059] (2) The utility model provides a second inclined surface on the guide block of the second guide part, and the second inclined surface directly cooperates with the first inclined surface on the first guide part, or provides guide columns on opposite sides of the connecting member of the second guide part, and the second inclined surface is provided on the guide columns. Through the cooperation of the second inclined surface and the first inclined surface of the first guide part, the cleaning component can be more easily switched between the first position, the second position and the third position under the drive of the driving component.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cleaning device, characterized in that: include: fuselage (10); A cleaning assembly (20) is installed at the bottom of the body (10), and the cleaning assembly (20) has a first position in which the cleaning assembly is expanded to at least partially protrude from the outer edge of the body (10) and is in contact with the surface to be cleaned, a second position in which the cleaning assembly is retracted to the inner side of the body (10) and is in contact with the surface to be cleaned, and a third position in which the cleaning assembly is retracted to the inner side of the body (10) and rises to a predetermined distance from the surface to be cleaned.

2. The cleaning device according to claim 1, characterized in that The cleaning device further comprises a driving assembly (30) and a lifting transmission assembly (40), wherein the driving assembly (30) drives the cleaning assembly (20) to move along a first direction and cooperates with the transmission action of the lifting transmission assembly (40) to drive the cleaning assembly (20) to switch between the first position, the second position and the third position.

3. The cleaning device according to claim 2, characterized in that The drive assembly (30) comprises: A driving member (31), wherein the driving member (31) is arranged on the body (10); A follower (32) is connected to the cleaning assembly (20), the follower (32) is connected to the driving member (31) and moves along the first direction under the drive of the driving member (31), and the lifting transmission assembly (40) drives the cleaning assembly (20) to descend when the cleaning assembly (20) switches from the third position to the second position, or drives the cleaning assembly (20) to ascend when the cleaning assembly (20) switches from the second position to the third position.

4. The cleaning device according to claim 3, characterized in that The driving member (31) includes a motor, and the driven member (32) includes a rack (321). The rack (321) extends along the first direction. A gear (322) is sleeved on the output shaft of the motor, and the gear (322) is meshed with the rack (321).

5. The cleaning device according to claim 3, characterized in that The cleaning assembly (20) is arranged at the bottom of the driven member (32), and the lifting transmission assembly (40) includes: a first guide portion (41), the first guide portion (41) being arranged on the follower (32), and a first inclined surface (411) being arranged on the first guide portion (41); a second guide portion (42), the second guide portion (42) being located on a side of the driven member (32) facing away from the cleaning assembly (20), the second guide portion (42) being provided with a second inclined surface (421) having an inclined direction consistent with that of the first inclined surface (411), and a connecting member (422) being provided on the second guide portion (42), the connecting member (422) being movably provided through the driven member (32) and connected to the cleaning assembly (20); Wherein, the follower (32) drives the first guide part (41) to move along the first direction under the driving of the driving part (31), so that the first inclined surface (411) of the first guide part (41) cooperates with the second inclined surface (421) of the second guide part (42) to drive the cleaning component (20) to switch between the first position, the second position and the third position.

6. The cleaning device according to claim 5, characterized in that There are two of each of the first guide portion (41) and the second guide portion (42). The two first guide portions (41) are respectively arranged at two ends of the follower (32) along the first direction, and the second guide portion (42) is arranged in a one-to-one correspondence with the first guide portion (41).

7. The cleaning device according to claim 6, characterized in that The driven member (32) is provided with an elongated hole (323), the length direction of the elongated hole (323) is consistent with the first direction, and the connecting member (422) is movably arranged through the elongated hole (323).

8. The cleaning device according to claim 7, characterized in that One end of the elongated hole (323) extends to the inner side of the first guide portion (41), and the second guide portion (42) includes a guide block (423), and the guide block (423) is provided with the second inclined surface (421).

9. The cleaning device according to claim 7, characterized in that One end of the elongated hole (323) extends to the inner side of the first guide portion (41), the second guide portion (42) includes a main body (424) and at least two guide posts (425), the connecting member (422) is connected to the main body (424), the two guide posts (425) are connected to the main body (424) and are located on opposite sides of the connecting member (422), and the second inclined surface (421) is provided on the guide post (425).

10. The cleaning device according to any one of claims 1 to 9, characterized in that When the cleaning assembly (20) is located at the third position, the minimum distance L1 between the cleaning assembly (20) and the body (10) satisfies the relationship: L1 ≥ 10.6 mm; When the cleaning component (20) is located at the first position or the second position, the maximum distance L2 between the cleaning component (20) and the body (10) satisfies the relationship: L2≤18.0 mm.

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