Transmission assembly and cleaning equipment

Abstract

The utility model discloses a transmission assembly and cleaning equipment. The transmission assembly is used for the cleaning equipment and comprises a first transmission part, a second transmission part and a reset part. The first transmission part is configured to be connected with the driving part, and a track surface is arranged on the first transmission part. The second transmission part is configured to be connected with the cleaning assembly and comprises a limiting structure, the limiting structure movably abuts against the track face, and the reset part is connected with the second transmission part. The transmission assembly is configured in the mode that when the first transmission part drives the track face to rotate relative to the limiting structure in the first direction, the track face drives the second transmission part to descend relative to the first transmission part through the limiting structure, and when the first transmission part drives the track face to rotate relative to the limiting structure in the second direction, the second transmission part descends. The reset piece drives the second transmission piece to ascend relative to the first transmission piece. The first transmission part can rotate to drive the track face to move relative to the limiting structure, meanwhile, the reset part is matched, the second transmission part can ascend and descend, and then the cleaning assembly can ascend and descend.

Description

Technical Field

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

[0002] In the related art, a sweeping robot can use a mop to clean the floor. In some cases, the floor is carpeted, and when a wet mop is dragged on the carpet, the carpet will be wet, or when the sweeping robot is cleaning a wooden floor, the mop is likely to scratch the wooden floor. In addition, when the sweeping robot is crossing an obstacle, the mop in contact with the ground will also increase the difficulty of the sweeping robot in crossing the obstacle. Utility Model Content

[0003] The embodiment of the utility model provides a transmission assembly and a cleaning device to solve at least one of the above-mentioned technical problems.

[0004] A transmission assembly according to an embodiment of the present utility model is used for cleaning equipment, and the transmission assembly comprises:

[0005] A first transmission member, the first transmission member is configured to connect to the driving member, and the first transmission member is provided with a track surface;

[0006] a second transmission member, the second transmission member being configured to be connected to the cleaning assembly, the second transmission member comprising a limiting structure, the limiting structure being movably abutted against the track surface, and;

[0007] a reset member connected to the second transmission member;

[0008] The transmission assembly is configured as follows:

[0009] When the first transmission member drives the track surface to rotate along the first direction relative to the limiting structure, the track surface drives the second transmission member to descend relative to the first transmission member through the limiting structure;

[0010] When the first transmission member drives the track surface to rotate along the second direction relative to the limiting structure, the reset member drives the second transmission member to rise relative to the first transmission member.

[0011] In the above-mentioned transmission assembly, the rotation of the first transmission member can drive the track surface to move relative to the limiting structure. At the same time, in conjunction with the reset member, the second transmission member can be raised and lowered, thereby realizing the raising and lowering of the cleaning assembly, which is beneficial to protecting the ground and reducing the difficulty of the cleaning equipment in overcoming obstacles.

[0012] In some embodiments, a first limiting portion and a second limiting portion are respectively provided on the track surface. When the limiting structure abuts against the first limiting portion, the first limiting portion is configured to limit the end point of the moving stroke of the limiting structure along the second direction on the track surface. When the limiting structure abuts against the second limiting portion, the second limiting portion is configured to limit the end point of the moving stroke of the limiting structure along the first direction on the track surface.

[0013] In some embodiments, the track surface includes a first area and a second area, and the first area and the second area are connected. When the limiting structure abuts against the first area, the second transmission member is located at a first position, and the first position causes the cleaning component to be located in a cleaning position for abutting against the ground. When the limiting structure abuts against the second area, the second transmission member is located at a second position, and the second position causes the cleaning component to be located in a ground-lift position for detaching from the ground.

[0014] In some embodiments, the transmission assembly is configured as:

[0015] When the limiting structure abuts against the first area, when the first transmission member rotates along the second direction so that the second area abuts against the limiting structure, the second transmission member rises from the first position to the second position and the limiting structure abuts against the second limiting portion;

[0016] When the limiting structure abuts against the second area, when the first transmission member rotates along the first direction to make the first area abut against the limiting structure, the second transmission member descends from the second position to the first position and the limiting structure abuts against the first limiting portion.

[0017] In some embodiments, when the limiting structure abuts against the second area, when the first transmission member rotates along the first direction so that the first area abuts against the limiting structure, the reset member is compressed by the second transmission member;

[0018] When the limiting structure abuts against the first area, when the first transmission member rotates along the second direction to make the second area abut against the limiting structure, the reset member restores its length and drives the second transmission member to rise from the first position to the second position.

[0019] In some embodiments, the track surface includes a third area, a fourth area and a fifth area, and along the first direction, the third area, the fourth area and the fifth area are connected in sequence, when the limiting structure abuts against the third area or the fifth area, the second transmission member is located in a first position, and the first position causes the cleaning component to be located in a cleaning position for abutting the ground, and when the limiting structure abuts against the fourth area, the second transmission member is located in a second position, and the second position causes the cleaning component to be located in a ground-lift position for detaching from the ground.

[0020] In some embodiments, the transmission assembly is configured as:

[0021] When the limiting structure abuts against the fourth area, when the first transmission member rotates along the second direction to make the fifth area abut against the limiting structure, the second transmission member descends from the second position to the first position and the limiting structure abuts against the second limiting portion;

[0022] When the limiting structure abuts against the fifth area, when the first transmission member rotates along the first direction to make the fourth area abut against the limiting structure, the second transmission member rises from the first position to the second position and the limiting structure is separated from the first limiting portion and the second limiting portion;

[0023] When the limiting structure abuts against the fourth area, when the first transmission member rotates along the first direction to make the third area abut against the limiting structure, the second transmission member descends from the second position to the first position and the limiting structure abuts against the first limiting portion;

[0024] When the limiting structure abuts against the third area, when the first transmission member rotates along the second direction to make the fourth area abut against the limiting structure, the second transmission member rises from the first position to the second position and the limiting structure is separated from the second limiting portion and the first limiting portion.

[0025] In some embodiments, when the limiting structure abuts against the fourth area, when the first transmission member rotates along the second direction to make the fifth area abut against the limiting structure, the reset member is compressed by the second transmission member;

[0026] When the limiting structure abuts against the fifth area, when the first transmission member rotates along the first direction to make the fourth area abut against the limiting structure, the restoring member restores its length and drives the second transmission member to rise from the first position to the second position;

[0027] When the limiting structure abuts against the fourth area, when the first transmission member rotates along the first direction to make the third area abut against the limiting structure, the reset member is compressed by the second transmission member;

[0028] When the limiting structure abuts against the third area, when the first transmission member rotates along the second direction to make the fourth area abut against the limiting structure, the reset member restores its length and drives the second transmission member to rise from the first position to the second position.

[0029] In some embodiments, the second transmission member includes a third limiting portion, and the transmission assembly includes a fourth limiting portion;

[0030] When the second transmission member is located at the first position, the third limiting portion and the fourth limiting portion are staggered in the lifting direction of the second transmission member;

[0031] When the second transmission member is located at the second position, the third limiting portion abuts against the fourth limiting portion in the circumferential direction of the second transmission member.

[0032] In some embodiments, the second transmission member includes a ring portion, the ring portion encloses an accommodating space, the first transmission member is partially located in the accommodating space, the limiting structure is arranged on the side of the ring portion facing the accommodating space, and the third limiting portion is arranged on the side of the ring portion away from the accommodating space.

[0033] In some embodiments, a receiving cavity is provided in the second transmission member, and the reset member is located in the receiving cavity.

[0034] In some embodiments, a fixing member is provided in the accommodating cavity, the transmission assembly is provided with a rotating shaft, the rotating shaft penetrates into the accommodating cavity, the fixing member is configured to be connected to the rotating shaft, one end of the reset member abuts against the side of the fixing member facing the accommodating cavity, and the other end abuts against the side wall of the accommodating cavity.

[0035] A cleaning device according to an embodiment of the present utility model comprises the transmission assembly described in any one of the above embodiments.

[0036] In the above-mentioned cleaning equipment, the rotation of the first transmission member can drive the track surface to move relative to the limiting structure. At the same time, in conjunction with the reset member, the second transmission member can be raised and lowered, thereby realizing the raising and lowering of the cleaning component, which is beneficial to protecting the ground and reducing the difficulty of the cleaning equipment in crossing obstacles.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0039] Figure 1 It is a partial structural schematic diagram of a cleaning device according to an embodiment of the utility model;

[0040] Figure 2 yes Figure 1 Sectional view along line AA;

[0041] Figure 3 It is another partial structural schematic diagram of the cleaning device according to the embodiment of the utility model;

[0042] Figure 4 It is a structural schematic diagram of a first transmission member in an embodiment of the utility model;

[0043] Figure 5 is another structural schematic diagram of the first transmission member of an embodiment of the utility model;

[0044] Figure 6 It is a schematic structural diagram of a second transmission member in an embodiment of the utility model;

[0045] Figure 7 It is another partial structural schematic diagram of the cleaning device according to the embodiment of the utility model.

[0046] Reference numerals:

[0047] 100. Transmission assembly; 10. First transmission member; 12. Groove; 14. Track surface; 16. First limiting portion; 18. Second limiting portion; 19. Cleaning assembly; 20. First area; 22. Second area; 24. First connecting area; 26. Third area; 28. Fourth area; 30. Fifth area; 32. Second connecting area; 34. Second transmission member; 36. Limiting structure; 38. Third limiting portion; 39. Ring portion; 40. Accommodating space; 42. Connecting portion; 44. Mounting portion; 46. Accommodating cavity; 48. Fixing member; 50. Resetting member; 52. Fourth limiting portion; 54. Housing; 56. Driving member; 58. Output shaft; 59. Rotating shaft; 60. Gear set; 200. Cleaning equipment. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0050] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] The disclosure herein provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described herein. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0053] Please refer to Figures 1 to 6A transmission assembly 100 of an embodiment of the utility model is used for a cleaning device 200. The transmission assembly 100 includes a first transmission member 10, a second transmission member 34 and a reset member 50. The first transmission member 10 is configured to connect to a driving member 56. A track surface 14 is provided on the first transmission member 10. The second transmission member 34 is configured to connect to a cleaning assembly 19. The second transmission member 34 includes a limiting structure 36. The limiting structure 36 is movably supported on the track surface 14. The reset member 50 is connected to the second transmission member 34. The transmission assembly 100 is configured such that when the first transmission member 10 drives the track surface 14 to rotate in a first direction relative to the limiting structure 36, the track surface 14 drives the second transmission member 34 to descend relative to the first transmission member 10 through the limiting structure 36, and when the first transmission member 10 drives the track surface 14 to rotate in a second direction relative to the limiting structure 36, the reset member 50 drives the second transmission member 34 to rise relative to the first transmission member 10.

[0054] In the above-mentioned transmission assembly 100, the rotation of the first transmission member 10 can drive the track surface 14 to move relative to the limiting structure 36. At the same time, in conjunction with the reset member 50, the second transmission member 34 can be raised and lowered, thereby realizing the raising and lowering of the cleaning assembly 19, which is beneficial to protecting the ground and reducing the difficulty of the cleaning equipment 200 in overcoming obstacles.

[0055] Specifically, in Figure 2 , along the height direction H of the transmission assembly 100, the first transmission member 10 may be connected to the lower part of the driving member 56. The driving member 56 includes a motor. The first transmission member 10 may be cylindrical. The arc-shaped side wall of the first transmission member 10 may be provided with a groove 12, and the side wall inclined in the height direction in the groove 12 forms a track surface 14. The second transmission member 34 may be cylindrical. The second transmission member 34 may be arranged above the cleaning assembly 19 and connected to the cleaning assembly 19. A mop may be arranged below the cleaning assembly 19, and the mop may be attached to the ground and clean the ground. The reset member 50 may be arranged in the second transmission member 34, and one end of the reset member 50 may be connected to the second transmission member 34. The reset member 50 includes a spring, and the reset member 50 can be elastically deformed. After being compressed by the second transmission member 34, the reset member 50 can restore the elastic deformation so that the reset member 50 is extended to push the second transmission member 34 to move. The limiting structure 36 may be arranged on the inner side wall of the second transmission member 34. The limiting structure can be supported on the track surface 14 and move from one end of the track surface 14 to the other end.

[0056] In one embodiment, the driving member 56 can drive the first transmission member 10 to rotate in the first direction, the first transmission member 10 can drive the second transmission member 34 to rotate, and then drive the track surface 14 to rotate in the first direction relative to the limiting structure 36, the track surface 14 abuts against the limiting structure 36, so that the limiting structure 36 can drive the second transmission member 34 to descend relative to the first transmission member 10. In one embodiment, the driving member 56 can drive the first transmission member 10 to rotate in the second direction, the first transmission member 10 can drive the second transmission member 34 to rotate, and then drive the track surface 14 to rotate in the second direction relative to the limiting structure 36, and the second transmission member 34 can rise relative to the first transmission member 10.

[0057] In addition, in some application scenarios, such as carpet cleaning, obstacle crossing, backwashing, and air drying, the cleaning device 200 may not need to perform mopping operations. If the cleaning component 19 is still in the cleaning position, the cleaning component 19 will be close to the ground. When the cleaning component 19 is close to the ground, the movement of the cleaning device 200 will cause a certain movement resistance of the cleaning device 200. Moreover, when the cleaning device 200 crosses an obstacle, the cleaning component 19 close to the ground will also increase the difficulty of crossing the obstacle.

[0058] The cooperation between the first transmission member 10 and the second transmission member 34 can enable the cleaning assembly 19 to be raised and lowered. When the cleaning assembly 19 does not need to be attached to the ground, the cleaning assembly 19 can be raised, and when the cleaning assembly 19 needs to be attached to the ground, the cleaning assembly 19 can be lowered. In other words, the cleaning assembly 19 can be located in a cleaning position for contacting the ground and in a ground-lift position for detaching from the ground.

[0059] At present, the scheme for realizing automatic lifting of the mop is mainly to lift the mop assembly through the spiral mechanism of the pipe thread, lower the mop through the forward rotation of the cam, and lift the mop through the reverse rotation. The function of the damping member in its scheme is that the spiral mechanism needs a certain resistance during the separation process, similar to when we unscrew the bottle cap, we need to hold the bottle body with one hand. Since this resistance is always there, it will increase the resistance of the mopping process, and the constant friction will cause wear of the structural parts. However, in the utility model, the rotation of the first transmission member 10 can drive the track surface 14 to move relative to the limiting structure 36, and at the same time, with the reset member 50, the second transmission member 34 can be raised and lowered, and then the cleaning assembly 19 can be raised and lowered, which is beneficial to protect the ground and reduce the difficulty of the cleaning equipment 200 to overcome obstacles.

[0060] Optionally, the first direction R1 may be a clockwise direction, or a forward rotation direction of the driving member 56. The second direction R2 may be a counterclockwise direction, or a reverse rotation direction of the driving member 56, such as Figure 3 and Figure 4 It is understood that the description of the first direction and the second direction in the present invention is not limited to the above description. Figure 4In the embodiment, the first transmission member 10 can rotate clockwise, and the limiting structure can be supported on the track surface 14 to rotate counterclockwise relative to the first transmission member 10. The first transmission member 10 can rotate counterclockwise, and the limiting structure can be supported on the track surface 14 to rotate clockwise relative to the first transmission member 10. The limiting structure 36 includes a limiting block, and the limiting structure can be rectangular, and two limiting structures can be provided. The number and shape of the limiting structure 36 are not specifically limited.

[0061] The shapes and numbers of the grooves 12 and the track surfaces 14 are not specifically limited in the present invention. Figure 4 In the embodiment, the number of the grooves 12 and the number of the track surfaces 14 are both two, and the shapes of the grooves 12 and the track surfaces 14 may be other shapes besides those in the present invention.

[0062] Please combine Figure 2 and Figure 4 In some embodiments, the track surface 14 is provided with a first limiting portion 16 and a second limiting portion 18. When the limiting structure 36 abuts against the first limiting portion 16, the first limiting portion 16 is configured to limit the end point of the movement of the limiting structure 36 on the track surface 14 along the second direction. When the limiting structure 36 abuts against the second limiting portion 18, the second limiting portion 18 is configured to limit the end point of the movement of the limiting structure 36 on the track surface 14 along the first direction.

[0063] In this way, through the two limiting parts, when the limiting structure 36 abuts against the limiting parts, the limiting structure 36 stops moving on the track surface 14 .

[0064] Specifically, when the limiting structure 36 abuts against the first limiting portion 16, the first limiting portion 16 is configured to limit the end point of the movement of the limiting structure 36 along the second direction on the track surface 14. At this time, the limiting structure 36 cannot move relative to the first transmission member 10 along the second direction. If the driving member 56 continues to drive the first transmission member 10 to rotate along the first direction, the limiting structure 36 drives the second transmission member 34 to rotate along the first direction through the first limiting portion 16, and then drives the cleaning assembly 19 to rotate along the first direction.

[0065] When the limiting structure 36 abuts against the second limiting portion 18, the second limiting portion 18 is configured to limit the end point of the movement of the limiting structure 36 along the first direction on the track surface 14. At this time, the limiting structure 36 cannot move relative to the first transmission member 10 along the first direction. If the driving member 56 continues to drive the first transmission member 10 to rotate along the second direction, the limiting structure 36 drives the second transmission member 34 to rotate along the second direction through the second limiting portion 18, and then drives the cleaning assembly 19 to rotate along the second direction.

[0066] Therefore, when the limiting structure 36 has not yet abutted against the first limiting portion 16 or the second limiting portion 18, the limiting structure 36 can be moved to different areas on the track surface 14 when rotating, so as to realize the lifting and lowering of the cleaning component 19. When the limiting structure 36 abuts against the first limiting portion 16 or the second limiting portion 18, the limiting structure 36 can rotate again to drive the second transmission member 34 to rotate, so as to realize the rotation of the cleaning component 19.

[0067] It should be noted that when the first transmission member 10 rotates along the R1 direction, the limiting structure 36 moves on the track surface 14 along the R2 direction relative to the first transmission member 10. If the friction between the track surface 14 and the limiting structure 36 is too large, the limiting structure 36 may stay in a certain area on the track surface 14. When the friction between the cleaning component 19 and the ground is large enough and greater than the friction between the track surface 14 and the limiting structure 36, the cleaning component 19 can drive the limiting structure 36 to abut against the first limiting portion 16 through the second transmission member 34.

[0068] Furthermore, the cleaning component 19 includes a friction member (not shown). When the cleaning component 19 descends to the cleaning position, the friction member contacts the ground. The friction member can increase the friction between the cleaning component 19 and the ground, so that the friction between the cleaning component 19 and the ground is greater than the friction between the track surface 14 and the limiting structure 36. The cleaning component 19 can drive the limiting structure 36 to abut against the first limiting portion 16 through the second transmission member 34.

[0069] Please combine Figure 2 , Figure 4 and Figure 6 In some embodiments, the track surface 14 includes a first area 20 and a second area 22. The first area 20 and the second area 22 are connected. When the limiting structure 36 abuts against the first area 20, the second transmission member 34 is located in a first position, and the first position causes the cleaning assembly 19 to be located in a cleaning position for abutting against the ground. When the limiting structure 36 abuts against the second area 22, the second transmission member 34 is located in a second position, and the second position causes the cleaning assembly 19 to be located in a ground-lifting position for detaching from the ground.

[0070] In this way, the cleaning assembly 19 is switched between the ground-lift position and the cleaning position through the two regions of the track surface 14 .

[0071] Specifically, the first area 20 and the second area 22 may be connected via the first connecting area 24. The limiting structure 36 may be moved from one area to another via the first connecting area 24. Figure 4In the embodiment, the position of the second area 22 is higher than that of the first area 20. The limiting structure 36 is located below the track surface 14. When the limiting structure 36 abuts against the first area 20, the distance between the first transmission member 10 and the cleaning assembly 19 is relatively far, and the second transmission member 34 is lowered and located at the first position, so that the cleaning assembly 19 is located at the cleaning position. When the limiting structure 36 abuts against the second area 22, the distance between the first transmission member 10 and the cleaning assembly 19 is relatively close, and the second transmission member 34 is raised and located at the second position, so that the cleaning assembly 19 is located off the ground.

[0072] When the first transmission member 10 rotates in the second direction so that the limiting structure 36 moves from the first area 20 to the second area 22, the second transmission member 34 switches from the first position to the second position, and the cleaning assembly 19 switches from the cleaning position to the off-ground position. When the first transmission member 10 rotates in the first direction so that the limiting structure 36 moves from the second area 22 to the first area 20, the second transmission member 34 switches from the second position to the first position, and the cleaning assembly 19 switches from the off-ground position to the cleaning position.

[0073] Please combine Figure 2 and Figure 4 In some embodiments, the transmission assembly 100 is configured as follows:

[0074] When the limiting structure 36 abuts against the first region 20, when the first transmission member 10 rotates along the second direction to make the second region 22 abut against the limiting structure 36, the second transmission member 34 rises from the first position to the second position and the limiting structure 36 abuts against the second limiting portion 18;

[0075] When the limiting structure 36 abuts against the second area 22 , when the first transmission member 10 rotates in the first direction to abut the first area 20 against the limiting structure 36 , the second transmission member 34 descends from the second position to the first position and the limiting structure 36 abuts against the first limiting portion 16 .

[0076] In this way, the limiting structure 36 can be pressed against different areas of the track surface 14 by the rotation direction of the first transmission member 10 to control the lifting and lowering of the second transmission member 34 and further control the lifting and lowering of the cleaning assembly 19 .

[0077] Specifically, initially, the limiting structure 36 can be held against the first region 20, and the first transmission member 10 has not yet driven the limiting structure 36 to rotate. At this time, the second transmission member 34 is located at the first position, and the cleaning assembly 19 is located at the cleaning position.

[0078] When the limiting structure 36 abuts against the first area 20, when the first transmission member 10 rotates in the second direction so that the second area 22 abuts against the limiting structure 36, the second transmission member 34 rises from the first position to the second position and the limiting structure 36 abuts against the second limiting portion 18. At this time, the first transmission member 10 rotates in the second direction, and the limiting structure 36 moves on the track surface 14 so that the second area 22 abuts against the limiting structure 36. The continuous rotation of the first transmission member 10 can make the limiting structure 36 drive the second transmission member 34 to rotate in the second direction through the second limiting portion 18, and then drive the second transmission member 34 to rotate in the second direction, thereby driving the cleaning component 19 to rotate in the second direction.

[0079] When the limiting structure 36 abuts against the second area 22, when the first transmission member 10 rotates in the first direction so that the first area 20 abuts against the limiting structure 36, the second transmission member 34 drops from the second position to the first position and the limiting structure 36 abuts against the first limiting portion 16. At this time, the first transmission member 10 rotates in the first direction, and the limiting structure 36 moves on the track surface 14 so that the first area 20 abuts against the limiting structure 36. The continuous rotation of the first transmission member 10 can make the limiting structure 36 drive the second transmission member 34 to rotate in the first direction through the first limiting portion 16, and then drive the second transmission member 34 to rotate in the first direction, thereby driving the cleaning component 19 to rotate in the first direction.

[0080] It should be noted that, in one embodiment, the rotation of the first transmission member 10 can cause the limiting structure 36 to generate relative movement, thereby allowing the limiting structure 36 to move on the track surface 14 .

[0081] Please combine Figure 2 and Figure 4 In some embodiments, when the limiting structure 36 abuts against the second region 22, when the first transmission member 10 rotates along the first direction so that the first region 20 abuts against the limiting structure 36, the reset member 50 is compressed by the second transmission member 34. When the limiting structure 36 abuts against the first region 20, when the first transmission member 10 rotates along the second direction so that the second region 22 abuts against the limiting structure 36, the reset member 50 restores its length and drives the second transmission member 34 to rise from the first position to the second position.

[0082] In this way, by compressing the reset member 50, the cleaning assembly 19 can be driven to rise when the reset member 50 is extended, and the structure is simple.

[0083] Specifically, when the limiting structure 36 abuts against the second area 22, when the first transmission member 10 rotates in the first direction to make the first area 20 abut against the limiting structure 36, the second transmission member 34 descends, and the second transmission member 34 descends from the second position to the first position, driving the cleaning assembly 19 to descend from the off-the-ground position to the cleaning position. The reset member 50 is compressed by the second transmission member 34, so that the reset member 50 becomes shorter.

[0084] When the limiting structure 36 abuts against the first area 20, when the first transmission member 10 rotates along the second direction to make the second area 22 abut against the limiting structure 36, the reset member 50 restores its length, and the extended reset member 50 provides an upward force to the second transmission member 34, so that the second transmission member 34 rises, and the second transmission member 34 rises from the first position to the second position, driving the cleaning component 19 to rise from the cleaning position to the ground position.

[0085] Please combine Figure 2 and Figure 5 In some embodiments, the track surface 14 includes a third area 26, a fourth area 28, and a fifth area 30. Along the first direction, the third area 26, the fourth area 28, and the fifth area 30 are connected in sequence. When the limiting structure 36 abuts against the third area 26 or the fifth area 30, the second transmission member 34 is located in the first position, and the first position causes the cleaning assembly 19 to be located in a cleaning position for abutting against the ground. When the limiting structure 36 abuts against the fourth area 28, the second transmission member 34 is located in the second position, and the second position causes the cleaning assembly 19 to be located in a ground-lifting position for detaching from the ground.

[0086] In this way, the cleaning assembly 19 is switched between the ground-lift position and the cleaning position through the three regions of the track surface 14 .

[0087] Specifically, two adjacent areas can be connected via the second connection area 32, and the limiting structure 36 can be moved from one area to another area via the second connection area 32. Figure 5 , the position of the fourth area 28 is higher than the positions of the third area 26 and the fifth area 30. The limiting structure 36 is located below the track surface 14. When the limiting structure 36 abuts against the third area 26 or the fifth area 30, the distance between the first transmission member 10 and the cleaning assembly 19 is relatively far, the second transmission member 34 is located at the first position, and the cleaning assembly 19 is located at the cleaning position. When the limiting structure 36 abuts against the fourth area 28, the distance between the first transmission member 10 and the cleaning assembly 19 is relatively close, the second transmission member 34 is located at the second position, and the cleaning assembly 19 is located off the ground.

[0088] Along the first direction, the third region 26 , the fourth region 28 , and the fifth region 30 are connected in sequence, that is, along the second direction, the fifth region 30 , the fourth region 28 , and the third region 26 are connected in sequence.

[0089] When the first transmission member 10 rotates in the second direction, so that the limiting structure 36 moves from the third area 26 to the fourth area 28, the second transmission member 34 switches from the first position to the second position, so that the cleaning assembly 19 switches from the cleaning position to the off-ground position. When the limiting structure 36 moves from the fourth area 28 to the fifth area 30 in the first direction, the second transmission member 34 switches from the second position to the first position, so that the cleaning assembly 19 switches from the off-ground position to the cleaning position.

[0090] When the first transmission member 10 rotates in the first direction so that the limiting structure 36 moves from the fifth area 30 to the fourth area 28, the second transmission member 34 switches from the first position to the second position so that the cleaning assembly 19 switches from the cleaning position to the off-ground position. When the first transmission member 10 rotates in the first direction so that the limiting structure 36 moves from the fourth area 28 to the third area 26, the second transmission member 34 switches from the second position to the first position so that the cleaning assembly 19 switches from the off-ground position to the cleaning position.

[0091] Please combine Figure 2 and Figure 5 In some embodiments, the transmission assembly 100 is configured as follows:

[0092] When the limiting structure 36 abuts against the fourth area 28, when the first transmission member 10 rotates along the second direction to make the fifth area 30 abut against the limiting structure 36, the second transmission member 34 drops from the second position to the first position and the limiting structure 36 abuts against the second limiting portion 18;

[0093] When the limiting structure 36 abuts against the fifth area 30, when the first transmission member 10 rotates along the first direction to make the fourth area 28 abut against the limiting structure 36, the second transmission member 34 rises from the first position to the second position and the limiting structure 36 is separated from the first limiting portion 16 and the second limiting portion 18;

[0094] When the limiting structure 36 abuts against the fourth area 28, when the first transmission member 10 rotates along the first direction to make the third area 26 abut against the limiting structure 36, the second transmission member 34 drops from the second position to the first position and the limiting structure 36 abuts against the first limiting portion 16;

[0095] When the limiting structure 36 abuts against the third area 26 , when the first transmission member 10 rotates along the second direction to make the fourth area 28 abut against the limiting structure 36 , the second transmission member 34 rises from the first position to the second position and the limiting structure 36 is separated from the second limiting portion 18 and the first limiting portion 16 .

[0096] In this way, the limiting structure 36 can be pressed against different areas of the track surface 14 by the rotation direction of the first transmission member 10 to control the lifting and lowering of the second transmission member 34 and further control the lifting and lowering of the cleaning assembly 19 .

[0097] Specifically, initially, the limiting structure 36 can be held against the fourth region 28, and the first transmission member 10 has not yet driven the limiting structure 36 to rotate. At this time, the second transmission member 34 is located at the second position, and the cleaning assembly 19 is located off the ground. When the first transmission member 10 rotates along the second direction so that the fifth region 30 is held against the limiting structure 36, the second transmission member 34 drops from the second position to the first position and the limiting structure 36 is held against the second limiting portion 18. At this time, the first transmission member 10 rotates along the second direction, and the limiting structure 36 moves on the track surface 14 so that the fifth region 30 is held against the limiting structure 36. The continuous rotation of the first transmission member 10 can cause the limiting structure 36 to drive the second transmission member 34 to rotate along the second direction through the second limiting portion 18, and then drive the second transmission member 34 to rotate along the second direction, thereby driving the cleaning assembly 19 to rotate along the second direction.

[0098] When the limiting structure 36 abuts against the fifth area 30, when the first transmission member 10 rotates in the first direction so that the fourth area 28 abuts against the limiting structure 36, the second transmission member 34 rises from the first position to the second position and the limiting structure 36 is separated from the first limiting portion 16 and the second limiting portion 18. At this time, the first transmission member 10 rotates in the first direction, the limiting structure 36 moves on the track surface 14 so that the fourth area 28 abuts against the limiting structure 36, and the limiting structure 36 cannot drive the cleaning assembly 19 to rotate through the second transmission member 34, and the cleaning assembly 19 does not rotate and is located off the ground.

[0099] When the limiting structure 36 abuts against the fourth area 28, when the first transmission member 10 rotates along the first direction so that the third area 26 abuts against the limiting structure 36, the second transmission member 34 drops from the second position to the first position and the limiting structure 36 abuts against the first limiting portion 16. At this time, the first transmission member 10 rotates along the first direction, and the limiting structure 36 moves on the track surface 14 so that the third area 26 abuts against the limiting structure 36. The continuous rotation of the first transmission member 10 can make the limiting structure 36 drive the second transmission member 34 to rotate along the first direction through the first limiting portion 16, and then drive the second transmission member 34 to rotate along the first direction, thereby driving the cleaning component 19 to rotate along the first direction.

[0100] When the limiting structure 36 abuts against the third area 26, when the first transmission member 10 rotates in the second direction to make the fourth area 28 abut against the limiting structure 36, the second transmission member 34 rises from the first position to the second position and the limiting structure 36 is separated from the second limiting portion 18 and the first limiting portion 16. At this time, the first transmission member 10 rotates in the second direction, the limiting structure 36 moves on the track surface 14 to make the fourth area 28 abut against the limiting structure 36, and the limiting structure 36 cannot drive the cleaning assembly 19 to rotate through the second transmission member 34, and the cleaning assembly 19 does not rotate and is located off the ground.

[0101] Please combine Figure 2 , Figure 5 and Figure 6 In some embodiments, when the limiting structure 36 abuts against the fourth region 28, when the first transmission member 10 rotates along the second direction so that the fifth region 30 abuts against the limiting structure 36, the reset member 50 is compressed by the second transmission member 34. When the limiting structure 36 abuts against the fifth region 30, when the first transmission member 10 rotates along the first direction so that the fourth region 28 abuts against the limiting structure 36, the reset member 50 restores its length and drives the second transmission member 34 to rise from the first position to the second position. When the limiting structure 36 abuts against the fourth region 28, when the first transmission member 10 rotates along the first direction so that the third region 26 abuts against the limiting structure 36, the reset member 50 is compressed by the second transmission member 34. When the limiting structure 36 abuts against the third region 26, when the first transmission member 10 rotates along the second direction so that the fourth region 28 abuts against the limiting structure 36, the reset member 50 restores its length and drives the second transmission member 34 to rise from the first position to the second position.

[0102] In this way, by compressing the reset member 50, the cleaning assembly 19 can be driven to rise when the reset member 50 is extended, and the structure is simple.

[0103] Specifically, when the limiting structure 36 abuts against the fourth area 28, when the first transmission member 10 rotates in the second direction to make the fifth area 30 abut against the limiting structure 36, the second transmission member 34 descends, and the second transmission member 34 descends from the second position to the first position, driving the cleaning assembly 19 to descend from the off-the-ground position to the cleaning position. The reset member 50 is compressed by the second transmission member 34, so that the reset member 50 becomes shorter.

[0104] When the limiting structure 36 abuts against the fifth area 30, when the first transmission member 10 rotates along the first direction to make the fourth area 28 abut against the limiting structure 36, the reset member 50 restores its length, and the extended reset member 50 provides an upward force to the second transmission member 34, so that the second transmission member 34 rises, and the second transmission member 34 rises from the first position to the second position, driving the cleaning component 19 to rise from the cleaning position to the ground position.

[0105] When the limiting structure 36 abuts against the fourth area 28, when the first transmission member 10 rotates in the first direction to make the third area 26 abut against the limiting structure 36, the second transmission member 34 descends, and the second transmission member 34 descends from the second position to the first position, driving the cleaning assembly 19 to descend from the off-the-ground position to the cleaning position. The reset member 50 is compressed by the second transmission member 34, so that the reset member 50 becomes shorter.

[0106] When the limiting structure 36 abuts against the third area 26, when the first transmission member 10 rotates along the second direction to make the fourth area 28 abut against the limiting structure 36, the reset member 50 restores its length, and the extended reset member 50 provides an upward force to the second transmission member 34, so that the second transmission member 34 rises, and the second transmission member 34 rises from the first position to the second position, driving the cleaning component 19 to rise from the cleaning position to the ground position.

[0107] Please combine Figure 2 and Figure 7 In some embodiments, the second transmission member 34 includes a third limit portion 38, and the transmission assembly 100 includes a fourth limit portion 52. When the second transmission member 34 is located at the first position, the third limit portion 38 and the fourth limit portion 52 are staggered in the lifting direction of the second transmission member 34. When the second transmission member 34 is located at the second position, the third limit portion 38 and the fourth limit portion 52 abut against each other in the circumferential direction of the second transmission member 34.

[0108] In this way, when the third limiting portion 38 abuts against the fourth limiting portion 52 , the second transmission member 34 can descend while the first transmission member 10 continues to rotate.

[0109] Specifically, the transmission assembly 100 further includes a housing 54, and a fourth limiting portion 52 is convexly disposed on the inner wall of the inner cavity of the housing 54. Figure 2 In the embodiment, when the second transmission member 34 is in the second position, the cleaning assembly 19 is in the off-ground position, the second transmission member 34 is partially located in the inner cavity of the housing 54, and the third limiting portion 38 abuts against the fourth limiting portion 52 in the circumferential direction of the cleaning assembly 19. At this time, the limiting structure 36 abuts against the second region 22. The cleaning assembly 19 cannot rotate in the direction close to the fourth limiting portion 52, and the first transmission member 10 continues to rotate to make the second transmission member 34 descend. Figure 5 In the clockwise direction shown. Figure 5 In this way, it is possible to avoid the situation where the limiting structure 36 rushes from the fourth area 28 to the second connecting area 32 between the fourth area 28 and the third area 26 and then falls on the fourth area 28 due to inertia when the limiting structure 36 moves from the fifth area 30 to the fourth area 28, causing the cleaning component 19 to fall and then rise again; or it is possible to avoid the situation where the limiting structure 36 rushes from the fourth area 28 to the second connecting area 32 between the fourth area 28 and the fifth area 30 and then falls on the fourth area 28 due to inertia when the limiting structure 36 moves from the third area 26 to the fourth area 28, causing the cleaning component 19 to fall and then rise again. This can make the rising movement of the cleaning component 19 more stable.

[0110] When the second transmission member 34 is in the first position, the cleaning assembly 19 is in the cleaning position, the second transmission member 34 extends out of the housing 54, and the third limiting portion 38 and the fourth limiting portion 52 are staggered in the lifting direction of the cleaning assembly 19. Figure 5 In the embodiment, the limiting structure 36 abuts against the third area 26 or the fifth area 30 (in Figure 4 In the embodiment, the limiting structure 36 abuts against the first area 20). Since the third limiting portion 38 and the fourth limiting portion 52 are staggered in the lifting direction of the cleaning assembly 19, the fourth limiting portion 52 will not block the rotation of the cleaning assembly 19 in the rotation direction of the cleaning assembly 19, and the limiting structure 36 can drive the cleaning assembly 19 to rotate through the first limiting portion 16.

[0111] The staggered arrangement means that, in the lifting direction of the cleaning assembly 19 , the third limiting portion 38 and the fourth limiting portion 52 do not overlap and do not correspond to each other.

[0112] In addition, the transmission assembly 100 may include a current detection device (not shown). In one embodiment, when the second transmission member 34 is raised or lowered, the current of the driving member 56 will suddenly increase in a short period of time, and the current detection device can be used to detect the current of the driving member 56 in real time, so as to determine whether the cleaning assembly 19 has completed the switching between the cleaning position and the ground-lifting position.

[0113] Please combine Figure 2 and Figure 6 In some embodiments, the second transmission member 34 includes a ring portion 39. The ring portion 39 encloses an accommodating space 40. The first transmission member 10 is partially located in the accommodating space 40. The limiting structure 36 is provided on the side of the ring portion 39 facing the accommodating space 40. The third limiting portion 38 is provided on the side of the ring portion 39 away from the accommodating space 40.

[0114] In this way, the second transmission member 34 can be lowered by the cooperation between the limiting structure and the third limiting portion 38 .

[0115] Specifically, in one embodiment, the second transmission member 34 further includes a connecting portion 42 and a mounting portion 44. The ring portion 39 is disposed on the top of the connecting portion 42. The connecting portion 42 can be connected to the cleaning assembly 19. The mounting portion 44 is located in the accommodating space 40. The limiting structure 36 can be disposed between the mounting portion 44 and the ring portion 39 and fixedly connected to the inner side wall of the ring portion 39. The third limiting portion 38 can be disposed on the outer side wall of the ring portion 39. Figure 5 In the embodiment, when the cleaning assembly 19 is located at the cleaning position, the limiting structure 36 can abut against the first limiting portion 16 or the second limiting portion 18. Figure 4When the cleaning assembly 19 is in the cleaning position, the limiting structure 36 can abut against the first limiting portion 16. The third limiting portion 38 and the fourth limiting portion 52 are staggered in the lifting direction of the second transmission member 34, so that the second transmission member 34 can be lowered by the cooperation of the limiting structure and the third limiting portion 38.

[0116] Please combine Figure 2 and Figure 6 In some embodiments, a receiving cavity 46 is provided in the second transmission member 34 , and the reset member 50 is located in the receiving cavity 46 .

[0117] In this way, the second transmission member 34 can be pushed upward by the extension of the reset member 50 .

[0118] Specifically, a receiving cavity 46 is provided in the mounting portion 44. The reset member 50 can be installed in the receiving cavity 46 from the lower end opening of the receiving cavity 46. In one embodiment, when the second transmission member 34 descends, the reset member 50 is compressed by the upper side wall of the receiving cavity 46, so that the reset member 50 becomes shorter. In one embodiment, the reset member 50 can restore its length, and the extended reset member 50 provides an upward force to the upper side wall of the receiving cavity 46, so that the second transmission member 34 rises, driving the cleaning assembly 19 to rise from the cleaning position to the ground position.

[0119] Please combine Figure 2 In some embodiments, a fixing member 48 is provided in the accommodating chamber 46, and the transmission assembly 100 is provided with a rotating shaft 58, which penetrates into the accommodating chamber 46, and the fixing member 48 is configured to connect the rotating shaft 58, and one end of the reset member 50 abuts against the side of the fixing member 48 facing the accommodating chamber 46, and the other end abuts against the side wall of the accommodating chamber 46.

[0120] In this way, the restoring member 50 can be installed in the accommodating cavity 46 by the fixing member 48 to make the restoring member 50 more stable during compression and extension.

[0121] Specifically, the fixing member 48 may include a screw. The transmission assembly 100 includes a gear set 60, and the gear set 60 may be a reduction gear set. The output shaft 59 of the driving member 56 can transmit power to the rotating shaft 58 through the gear set 60, thereby driving the rotating shaft 58 to rotate. The rotating shaft 58 can pass through the first transmission member 10 and the mounting portion 44, and one end of the rotating shaft 58 extends into the accommodating chamber 46. In one embodiment, the reset member 50 can be sleeved on one end of the rotating shaft 58 extending into the accommodating chamber 46, the fixing member 48 can be connected to the end of the rotating shaft 58 extending into the accommodating chamber 46, one end of the reset member 50 abuts against the side of the fixing member 48 facing the accommodating chamber 46, and the other end abuts against the upper side wall of the accommodating chamber 46, so that the reset member 50 can be limitedly installed in the accommodating chamber 46, so that the reset member 50 is more stable when compressed and extended.

[0122] Please refer to Figures 1 to 6A cleaning device 200 according to an embodiment of the present utility model includes a transmission assembly 100 according to any one of the above embodiments.

[0123] In the above-mentioned cleaning equipment 200, the rotation of the first transmission member 10 can drive the track surface 14 to move relative to the limiting structure 36. At the same time, in conjunction with the reset member 50, the second transmission member 34 can be raised and lowered, thereby realizing the raising and lowering of the cleaning component 19, which is beneficial to protecting the ground and reducing the difficulty of the cleaning equipment 200 in overcoming obstacles.

[0124] Specifically, the cleaning device 200 includes but is not limited to a sweeping robot, a sweeping machine, a sweeping and mopping machine, a double-rotating-disk sweeping machine, a floor scrubber (such as a handheld floor scrubber), etc. In one embodiment, the rotation of the first transmission member 10 can drive the track surface 14 to move relative to the limiting structure 36, and at the same time, in conjunction with the reset member 50, the second transmission member 34 can be raised and lowered, and then the cleaning assembly 19 can be raised and lowered, which is beneficial to protecting the ground and reducing the difficulty of the cleaning device 200 to cross obstacles. For other specific descriptions, please refer to the above.

[0125] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0126] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A transmission assembly for cleaning equipment, It is characterized in that The transmission assembly comprises: A first transmission member, the first transmission member is configured to connect to the driving member, and the first transmission member is provided with a track surface; a second transmission member, the second transmission member being configured to be connected to the cleaning assembly, the second transmission member comprising a limiting structure, the limiting structure being movably abutted against the track surface, and; a reset member connected to the second transmission member; The transmission assembly is configured as follows: When the first transmission member drives the track surface to rotate along the first direction relative to the limiting structure, the track surface drives the second transmission member to descend relative to the first transmission member through the limiting structure; When the first transmission member drives the track surface to rotate along the second direction relative to the limiting structure, the reset member drives the second transmission member to rise relative to the first transmission member.

2. The transmission assembly according to claim 1, It is characterized in that A first limiting portion and a second limiting portion are respectively provided on the track surface. When the limiting structure abuts against the first limiting portion, the first limiting portion is configured to limit the end point of the moving stroke of the limiting structure along the second direction on the track surface. When the limiting structure abuts against the second limiting portion, the second limiting portion is configured to limit the end point of the moving stroke of the limiting structure along the first direction on the track surface.

3. The transmission assembly according to claim 2, It is characterized in that The track surface includes a first area and a second area, the first area and the second area are connected, when the limiting structure abuts against the first area, the second transmission member is located at a first position, the first position makes the cleaning component located at a cleaning position for abutting against the ground, when the limiting structure abuts against the second area, the second transmission member is located at a second position, the second position makes the cleaning component located at a ground-lift position for leaving the ground.

4. The transmission assembly according to claim 3, It is characterized in that The transmission assembly is configured as follows: When the limiting structure abuts against the first area, when the first transmission member rotates along the second direction so that the second area abuts against the limiting structure, the second transmission member rises from the first position to the second position and the limiting structure abuts against the second limiting portion; When the limiting structure abuts against the second area, when the first transmission member rotates along the first direction to make the first area abut against the limiting structure, the second transmission member descends from the second position to the first position and the limiting structure abuts against the first limiting portion.

5. The transmission assembly according to claim 4, It is characterized in that When the limiting structure abuts against the second area, when the first transmission member rotates along the first direction so that the first area abuts against the limiting structure, the reset member is compressed by the second transmission member; When the limiting structure abuts against the first area, when the first transmission member rotates along the second direction to make the second area abut against the limiting structure, the reset member restores its length and drives the second transmission member to rise from the first position to the second position.

6. The transmission assembly according to claim 2, It is characterized in that The track surface includes a third area, a fourth area and a fifth area. Along the first direction, the third area, the fourth area and the fifth area are connected in sequence. When the limiting structure abuts against the third area or the fifth area, the second transmission member is located at a first position, and the first position makes the cleaning component located at a cleaning position for abutting the ground. When the limiting structure abuts against the fourth area, the second transmission member is located at a second position, and the second position makes the cleaning component located at a ground-lift position for leaving the ground.

7. The transmission assembly according to claim 6, It is characterized in that The transmission assembly is configured as follows: When the limiting structure abuts against the fourth area, when the first transmission member rotates along the second direction to make the fifth area abut against the limiting structure, the second transmission member descends from the second position to the first position and the limiting structure abuts against the second limiting portion; When the limiting structure abuts against the fifth area, when the first transmission member rotates along the first direction to make the fourth area abut against the limiting structure, the second transmission member rises from the first position to the second position and the limiting structure is separated from the first limiting portion and the second limiting portion; When the limiting structure abuts against the fourth area, when the first transmission member rotates along the first direction to make the third area abut against the limiting structure, the second transmission member descends from the second position to the first position and the limiting structure abuts against the first limiting portion; When the limiting structure abuts against the third area, when the first transmission member rotates along the second direction to make the fourth area abut against the limiting structure, the second transmission member rises from the first position to the second position and the limiting structure is separated from the second limiting portion and the first limiting portion.

8. The transmission assembly according to claim 7, It is characterized in that When the limiting structure abuts against the fourth area, when the first transmission member rotates along the second direction to make the fifth area abut against the limiting structure, the reset member is compressed by the second transmission member; When the limiting structure abuts against the fifth area, when the first transmission member rotates along the first direction to make the fourth area abut against the limiting structure, the restoring member restores its length and drives the second transmission member to rise from the first position to the second position; When the limiting structure abuts against the fourth area, when the first transmission member rotates along the first direction to make the third area abut against the limiting structure, the reset member is compressed by the second transmission member; When the limiting structure abuts against the third area, when the first transmission member rotates along the second direction to make the fourth area abut against the limiting structure, the reset member restores its length and drives the second transmission member to rise from the first position to the second position.

9. The transmission assembly according to claim 3 or 6, It is characterized in that The second transmission member includes a third limiting portion, and the transmission assembly includes a fourth limiting portion; When the second transmission member is located at the first position, the third limiting portion and the fourth limiting portion are staggered in the lifting direction of the second transmission member; When the second transmission member is located at the second position, the third limiting portion abuts against the fourth limiting portion in the circumferential direction of the second transmission member.

10. The transmission assembly according to claim 9, It is characterized in that The second transmission member includes a ring portion, the ring portion encloses an accommodating space, the first transmission member is partially located in the accommodating space, the limiting structure is arranged on the side of the ring portion facing the accommodating space, and the third limiting portion is arranged on the side of the ring portion away from the accommodating space.

11. The transmission assembly according to claim 1, It is characterized in that The second transmission member is provided with an accommodating cavity, and the reset member is located in the accommodating cavity.

12. The transmission assembly according to claim 11, It is characterized in that A fixing member is provided in the accommodating cavity, the transmission assembly is provided with a rotating shaft, the rotating shaft penetrates the accommodating cavity, the fixing member is configured to connect the rotating shaft, one end of the reset member abuts against the side of the fixing member facing the accommodating cavity, and the other end abuts against the side wall of the accommodating cavity.

13. A cleaning device, It is characterized in that Comprising the transmission assembly according to any one of claims 1-12.

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