Lifting assembly and cleaning equipment

Abstract

The utility model discloses a lifting assembly and cleaning equipment. The lifting assembly is used for the cleaning equipment and comprises a lifting part, a driving part and a transmission assembly, the transmission assembly comprises a first transmission part and a second transmission part, the first transmission part and the second transmission part are connected through threads, and the driving part is connected with the lifting part through the first transmission part and the second transmission part in sequence. The driving part is configured to drive the first transmission part to rotate, and the second transmission part is configured to convert the rotating motion of the first transmission part into the ascending and descending motion of the lifting part. In the lifting assembly, the first transmission part and the second transmission part are in threaded connection, and the driving part enables the lifting part to ascend and descend through threaded connection of the first transmission part and the second transmission part, so that the cleaning equipment carrying the lifting assembly can control the lifting part to ascend and descend, and the application range of the lifting part is expanded; and the use of cleaning equipment is facilitated.

Description

Technical Field

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

[0002] In the related art, a sweeping robot can clean a room. During the cleaning process, the sweeping robot walks in a complex environment in the room. Some functional components of the sweeping robot are usually installed in fixed positions on the body, which limits the application range of these functional components. Utility Model Content

[0003] The embodiments of the present utility model provide a lifting assembly and a cleaning device to solve at least one of the above-mentioned technical problems.

[0004] A lifting assembly provided in an embodiment of the present utility model is used for cleaning equipment, the lifting assembly includes a lifting member, a driving member and a transmission assembly, the transmission assembly includes a first transmission member and a second transmission member, the first transmission member and the second transmission member are connected by threads, the driving member is connected to the lifting member through the first transmission member and the second transmission member in turn, the driving member is configured to drive the first transmission member to rotate, and the second transmission member is configured to convert the rotational motion of the first transmission member into the rising and falling motion of the lifting member.

[0005] In the above-mentioned lifting assembly, the first transmission member and the second transmission member are connected by threads, and the driving member causes the lifting member to rise and fall through the threaded connection between the first transmission member and the second transmission member, so that the cleaning equipment equipped with the lifting assembly can control the lifting member to rise and fall, thereby expanding the application range of the lifting member and facilitating the use of the cleaning equipment.

[0006] In some embodiments, the first transmission member is provided with a first through hole, the inner wall of the first through hole is provided with an internal thread, the outer peripheral surface of the second transmission member is provided with an external thread, the second transmission member passes through the first through hole, and the internal thread is connected to the external thread.

[0007] In some embodiments, the second transmission member is provided with a second through hole, the lifting member includes a rotating shaft and a bracket, the rotating shaft rotatably passes through the second through hole, and the bracket is connected to one end of the rotating shaft.

[0008] In some embodiments, the lifting member includes a ground-contacting wheel, and the ground-contacting wheel is rotatably mounted on the bracket.

[0009] In some embodiments of the lifting member, the lifting assembly includes a clamping ring, the first end of the rotating shaft away from the bracket protrudes from the second transmission member, and the outer peripheral surface of the first end is provided with a clamping groove. The clamping ring is embedded in the clamping groove so that the second transmission member can drive the rotating shaft to rise, and then drive the lifting member to rise. When the second transmission member descends, it can abut against the bracket to drive the lifting member to descend.

[0010] In some embodiments, the lifting assembly includes an end cover, the end cover is provided with a accommodating cavity, the side wall of the accommodating cavity is provided with a first limiting portion, the outer peripheral surface of the second transmission member is provided with a second limiting portion, and the first limiting portion is connected to the second limiting portion to limit the rotation of the second transmission member.

[0011] In certain embodiments, one of the first limiting portion and the second limiting portion is provided with a limiting notch, and the other is provided with a limiting rib, and the limiting rib is accommodated in the limiting notch.

[0012] In some embodiments, the transmission assembly includes a driving gear connected to the output shaft of the driving member, and a gear portion is provided on the outer peripheral surface of the first transmission member, and the driving gear is engaged with the gear portion.

[0013] In certain embodiments, bearings are respectively provided on the upper end and the lower end of the first transmission member, and the gear portion is located between the upper end and the lower end.

[0014] In some embodiments, the lifting member includes at least one of a universal wheel, a driving wheel, a laser radar, a rag, a side brush, a roller brush, a camera, and an auxiliary wheel.

[0015] A cleaning device according to an embodiment of the present invention comprises:

[0016] Controls;

[0017] fuselage; and

[0018] The lifting assembly of any of the above embodiments, wherein:

[0019] The control member is used to control the lifting assembly to make the lifting member rise and fall relative to the reference feature on the fuselage.

[0020] In the above-mentioned cleaning equipment, the first transmission member and the second transmission member are connected by threads, and the driving member causes the lifting member to rise and fall through the threaded connection between the first transmission member and the second transmission member, so that the cleaning equipment equipped with the lifting component can control the lifting member to rise and fall, thereby expanding the application range of the lifting member and facilitating the use of the cleaning equipment.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments with reference to the following drawings, in which:

[0023] Figure 1 It is a partial cross-sectional schematic diagram of a cleaning device according to an embodiment of the present utility model;

[0024] Figure 2 It is a partially exploded schematic diagram of a cleaning device according to an embodiment of the present utility model;

[0025] Figures 3 and 4 It is a cross-sectional schematic diagram of a cleaning device according to an embodiment of the present invention.

[0026] Description of main component reference numerals:

[0027] Lifting assembly 100, cleaning device 200, lifting member 12, driving member 14, transmission assembly 16, first transmission member 18, second transmission member 20, fuselage 22, cleaning assembly 24, first through hole 26, second through hole 28, rotating shaft 30, bracket 32, ground contact wheel 34, clamping ring 36, clamping groove 38, end cover 40, accommodating chamber 42, limiting notch 44, limiting rib 46, driving gear 48, gear part 50, bearing 52. DETAILED DESCRIPTION

[0028] 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 should not be understood as limiting the present invention.

[0029] In the description of the present invention, 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", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] The disclosure herein provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0033] See also Figures 1 to 4 The present invention provides a lifting assembly 100 for use in a cleaning device 200. The lifting assembly 100 includes a lifting member 12, a driving member 14, and a transmission assembly 16. The transmission assembly 16 includes a first transmission member 18 and a second transmission member 20. The first transmission member 18 and the second transmission member 20 are connected by threads. The driving member 14 is connected to the lifting member 12 through the first transmission member 18 and the second transmission member 20 in turn. The driving member 14 is configured to drive the first transmission member 18 to rotate, and the second transmission member 20 is configured to convert the rotational motion of the first transmission member 18 into an ascending and descending motion of the lifting member 12.

[0034] In the above-mentioned lifting assembly 100, the first transmission member 18 and the second transmission member 20 are connected by threads, and the driving member 14 causes the lifting member 12 to rise and fall through the threaded connection between the first transmission member 18 and the second transmission member 20, so that the cleaning equipment 200 equipped with the lifting assembly 100 can control the lifting member 12 to rise and fall, thereby expanding the application range of the lifting member 12 and facilitating the use of the cleaning equipment 200.

[0035] Specifically, the lifting assembly 100 can be applied to cleaning equipment 200, which includes but is not limited to floor scrubbers, sweeping robots, mopping robots, and other equipment with cleaning functions. Figures 1 to 4 The cleaning device 200 includes a body 22, a lifting assembly 100 disposed on the body 22, and a lifting member 12 located at the bottom of the body 22. The lifting member 12 may be a ground-contacting wheel that can contact the ground or other objects on the ground (such as a carpet, etc.) and support the cleaning device 200 for movement. Alternatively, the lifting member 12 may be disposed at the front of the cleaning device 200 in the direction of travel, so that when the lifting member 12 descends relative to the body 22, the cleaning device 200 can be raised.

[0036] The cleaning device 200 of the present invention is equipped with a lifting assembly 100. The lifting assembly 100 can drive the lifting member 12 to rise and fall, thereby raising and restoring the height of the fuselage 22. In one embodiment, when the cleaning device 200 needs to overcome an obstacle, the lifting assembly 100 can drive the lifting member 12 to descend from the fuselage 22, thereby raising the height of the fuselage 22, so that the fuselage 22 can overcome higher obstacles, thereby improving the obstacle-crossing capability of the cleaning device 200. For example, when the lifting member 12 is in the raised position, as shown in FIG. Figure 3 As shown, the obstacle clearance height of the cleaning device 200 is about 20 mm. When the lifting member 12 is in the lowered position, as shown in FIG. Figure 4 As shown, the obstacle clearance height of the cleaning device 200 is approximately 30 mm.

[0037] In one embodiment, the lifting member 12 may include universal wheels, and the cleaning device 200 may further include a drive wheel assembly capable of being raised and lowered. The lifting assembly 100 drives the lifting member 12 to descend from the body 22, which can be coordinated with the drive wheel assembly to descend from the body 22 to achieve lifting of the entire device. The lifting assembly 100 drives the lifting member 12 to ascend from the body 22, which can be coordinated with the drive wheel assembly to ascend from the body 22 to achieve lowering of the entire device, thereby reducing the distance between the body 22 and the ground, increasing the pressure of the cleaning assembly on the ground, and thus improving the cleaning ability and dust collection ability.

[0038] In one embodiment, the lifting member 12 can be located at the front of the cleaning device 200 in the direction of travel. The cleaning device 200 includes a cleaning assembly 24 (such as a mopping assembly or a sweeping assembly), which is located at the rear of the cleaning device 200 in the direction of travel. When the lifting assembly 100 drives the lifting member 12 to descend relative to the body 22, the cleaning device 200 can be raised, and the pressure of the rear cleaning assembly 24 on the ground is increased, which can improve the cleaning effect of stains.

[0039] The driving member 14 can provide the power to raise and lower the lifting member 12, and this power can be transmitted to the trigger wheel assembly through the first transmission member 18 and the second transmission member 20. In one embodiment, the driving member 14 can include a motor, and the rotational power output by the motor can be converted into the power to raise and lower the lifting member 12 through the transmission of the first transmission member 18 and the second transmission member 20.

[0040] The first transmission member 18 and the second transmission member 20 are connected by threads. Alternatively, in one embodiment, the first transmission member 18 is provided with internal threads, and the second transmission member 20 is provided with external threads. Alternatively, in one embodiment, the first transmission member 18 is provided with external threads, and the second transmission member 20 is provided with internal threads, and the first transmission member 18 and the second transmission member 20 are connected by internal and external threads. Alternatively, in one embodiment, the first transmission member 18 is provided with external threads, and the second transmission member 20 is provided with external threads, and the first transmission member 18 and the second transmission member 20 are connected by external threads. Threaded connection of the first transmission member 18 and the second transmission member 20 can save costs and structural space.

[0041] The first transmission member 18 can be connected to the driving member 14, and the driving member 14 can drive the first transmission member 18 to rotate. The second transmission member 20 can convert the rotational motion of the first transmission member 18 into the ascending and descending motion of the lifting member 12, and can control whether the lifting member 12 ascends or descends by the rotation direction of the driving member 14.

[0042] In some embodiments, please combine Figure 1 The first transmission member 18 is provided with a first through hole 26, the inner wall of the first through hole 26 is provided with an internal thread, the outer peripheral surface of the second transmission member 20 is provided with an external thread, the second transmission member 20 passes through the first through hole 26, and the internal thread is connected to the external thread.

[0043] Thus, a lifting assembly 100 with a compact structure can be realized by connecting the internal thread and the external thread.

[0044] Specifically, the second transmission member 20 passes through the first through hole 26, and the first transmission member 18 and the second transmission member 20 are connected by internal threads and external threads. The connection between the first transmission member 18 and the second transmission member 20 is relatively compact, which can reduce the space occupied when the first transmission member 18 and the second transmission member 20 are connected, thereby realizing a compact lifting assembly 100.

[0045] When the first transmission member 18 rotates, power can be transmitted to the second transmission member 20 through the connection between the internal thread and the external thread, and the second transmission member 20 can drive the lifting member 12 to rise and fall along the first through hole 26. Optionally, the second transmission member 20 can include a screw.

[0046] In some embodiments, the second transmission member 20 is provided with a second through hole 28 , and the lifting member 12 includes a rotating shaft 30 and a bracket 32 ​​. The rotating shaft 30 rotatably passes through the second through hole 28 , and the bracket 32 ​​is connected to one end of the rotating shaft 30 .

[0047] Thus, a lifting assembly 100 with a compact structure can be achieved.

[0048] Specifically, the second transmission member 20 is provided with a second through hole 28, and the rotating shaft 30 passes through the second through hole 28. The connection between the rotating shaft 30 and the second transmission member 20 is relatively compact, which can reduce the space occupied when the rotating shaft 30 and the second transmission member 20 are connected, thereby realizing a compact lifting assembly 100.

[0049] When the first transmission member 18 rotates, it transmits power to the second transmission member 20, causing the second transmission member 20 to rise and fall. The lifting and lowering motion of the second transmission member 20 drives the rotating shaft 30 to rise and fall, thereby driving the lifting member 12 to rise and fall. The rotating shaft 30 rotatably passes through the second through hole 28, allowing the lifting member 12 to rotate relative to the second transmission member 20 when the second transmission member 20 drives it to rise and fall.

[0050] The lifting member 12 includes a ground contact wheel 34 rotatably mounted on the bracket 32 ​​.

[0051] Thus, the ground-contacting wheels 34 can come into contact with the ground, so that the cleaning device 200 can be supported and moved.

[0052] Specifically, when the cleaning device 200 is in use, the ground contact wheels 34 can come into contact with the ground, and the cleaning device 200 can walk on the ground via the ground contact wheels 34. The lifting assembly 100 can drive the ground contact wheels 34 to rise and fall, thereby making the cleaning device 200 adaptable to more usage scenarios.

[0053] In some embodiments, the lifting assembly 100 includes a clamping ring 36, and the first end of the rotating shaft 30 away from the bracket 32 ​​protrudes from the second transmission member 20. The outer peripheral surface of the first end is provided with a clamping groove 38. The clamping ring 36 is embedded in the clamping groove 38 so that the second transmission member 20 can drive the rotating shaft 30 to rise, and then drive the lifting member 12 to rise. When the second transmission member 20 descends, it can abut against the bracket 32 ​​to drive the lifting member 12 to descend.

[0054] Thus, the second transmission member 20 can drive the rotating shaft 30 to rise and fall through the cooperation between the clamping ring 36 and the rotating shaft 30 and the cooperation between the second transmission member 20 and the bracket 32.

[0055] Specifically, the rotating shaft 30 includes a first end and a second end, and the second end is arranged opposite to the first end. Figure 1 and Figure 2 In the figure, the first end is the upper end of the rotating shaft 30, and the second end is the lower end of the rotating shaft 30. The second end of the rotating shaft 30 is fixedly connected to the bracket 32, so that the bracket 32 ​​and the rotating shaft 30 can rotate relative to the second transmission member 20. The clamping ring 36, through cooperation with the retaining groove 38, can clamp the first end of the rotating shaft 30 to the end of the second transmission member 20 to prevent the second transmission member 20 from moving up and down. At the same time, the cooperation between the clamping ring 36 and the retaining groove 38 does not hinder the rotation of the rotating shaft 30 relative to the second transmission member 20.

[0056] When the second transmission member 20 descends, it abuts against the bracket 32, driving the lifting member 12 downward through the bracket 32. When the second transmission member 20 ascends, it abuts against the collar 36, driving the lifting member 12 upward through the collar 36. Thus, the second transmission member 20 can drive the lifting member 12 upward and downward by cooperating with the collar 36 and the bracket 32, respectively.

[0057] In some embodiments, the lifting assembly 100 includes an end cover 40, the end cover 40 is provided with a accommodating cavity 42, the side wall of the accommodating cavity 42 is provided with a first limiting portion, and the outer peripheral surface of the second transmission member 20 is provided with a second limiting portion, and the first limiting portion is connected to the second limiting portion to limit the rotation of the second transmission member 20.

[0058] Thus, the end cover 40 can limit the rotation of the second transmission member 20 , thereby converting the rotational motion of the first transmission member 18 into the ascending and descending motion of the second transmission member 20 .

[0059] Specifically, in one embodiment, the second transmission member 20 includes a screw, the second transmission member 20 is provided with an external thread, the first transmission member 18 is provided with a first through hole 26, the hole wall of the first through hole 26 is provided with an internal thread, the second transmission member 20 passes through the first through hole 26, and the first transmission member 18 and the second transmission member 20 are connected by external threads and internal threads.

[0060] When the first transmission member 18 rotates, the friction force between the external thread and the internal thread can drive the second transmission member 20 to rotate. Since the first limiting portion is connected to the second limiting portion to limit the rotation of the second transmission member 20, the friction force can drive the second transmission member 20 to move in the up and down directions.

[0061] Optionally, combine Figure 1 The clamping ring 36 and the second transmission member 20 are arranged in the accommodating cavity 42, so that the clamping ring 36 and the second transmission member 20 can be protected.

[0062] In some embodiments, please combine Figure 2 and Figure 4 One of the first limiting portion and the second limiting portion is provided with a limiting notch 44 , and the other is provided with a limiting rib 46 , and the limiting rib 46 is accommodated in the limiting notch 44 .

[0063] Therefore, the structure for limiting the rotation of the second transmission member 20 is simple and low in cost.

[0064] Specifically, in Figure 2 and Figure 4 In the illustrated embodiment, the first limiting portion is provided with a limiting rib 46, and the second limiting portion is provided with a limiting notch 44. The limiting rib 46 can extend along the axial direction of the rotating shaft 30. Optionally, there can be multiple limiting ribs 46 and limiting notches 44, and each limiting rib 46 can be accommodated in a corresponding limiting notch 44.

[0065] The cooperation between the limiting rib 46 and the limiting notch 44 can, on the one hand, limit the rotation of the second transmission member 20 under the drive of the first transmission member 18, so that the second transmission member 20 can move up and down along the axial direction of the rotating shaft 30. On the other hand, the cooperation between the limiting rib 46 and the limiting notch 44 can also guide the up and down movement of the second transmission member 20, thereby improving the stability of the movement of the second transmission member 20 to a certain extent.

[0066] In other embodiments, the first limiting portion is provided with a limiting notch 44 , and the second limiting portion is provided with a limiting rib 46 .

[0067] In some embodiments, the transmission assembly 16 includes a driving gear 48 connected to the output shaft of the driving member 14 . A gear portion 50 is provided on the outer circumference of the first transmission member 18 , and the driving gear 48 meshes with the gear portion 50 .

[0068] Thus, the driving member 14 can transmit power to the first transmission member 18 through gear meshing.

[0069] Specifically, the drive gear 48 can be connected to the output shaft of the driver 14 via other gears, or the drive gear 48 can be directly mounted on the output shaft of the driver 14. When the driver 14 is in operation, it can drive the drive gear 48 to rotate. The drive gear 48 meshes with the gear portion 50, transmitting the rotation of the drive gear 48 to the gear portion 50, thereby driving the first transmission member 18 to rotate. This meshing method allows for relatively reliable power transmission, thereby improving the reliability of the lifting assembly 100 to a certain extent.

[0070] Optionally, in Figure 1 In the embodiment, the driving gear 48 is disposed in the accommodating cavity 42 , thereby protecting the driving gear 48 .

[0071] Furthermore, the driving member 14 is connected to the outer circumference of the first transmission member 18 via the driving gear 48, so that the driving member 14 is arranged side by side with the lifting member 12. When the contact wheel 34 is subjected to an impact force, the normal operation of the driving member 14 is not affected, thereby improving the overall reliability of the lifting assembly 100.

[0072] In some embodiments, bearings 52 are respectively provided on the upper and lower ends of the first transmission member 18 , and the gear portion 50 is located between the upper and lower ends.

[0073] Thus, the rotation stability of the first transmission member 18 can be improved to a certain extent.

[0074] Specifically, the drive gear 48, driven by the driving member 14, can drive the first transmission member 18 to rotate. The gear portion 50 is located in the middle of the first transmission member 18. The first transmission member 18 can be supported by two bearings 52 at its upper and lower ends. Therefore, when the drive gear 48 drives the first transmission member 18 to rotate via the gear portion 50, the two bearings 52 can support the first transmission member 18 at its upper and lower ends, effectively supporting the first transmission member 18 at its upper and lower rotational ends, thereby improving the rotational stability of the first transmission member 18 to a certain extent.

[0075] Optionally, in Figure 1 In the embodiment, the two bearings 52 and the first transmission member 18 are arranged in the accommodating chamber 42, thereby protecting the two bearings 52 and the first transmission member 18. The outer ring of the bearing 52 can be fixed in the accommodating chamber 42, and the inner ring is fixedly connected to the first transmission member 18.

[0076] In some embodiments, the lifting member 12 includes at least one of a universal wheel, a driving wheel, a laser radar, a rag, a side brush, a roller brush, a camera, and an auxiliary wheel.

[0077] In this way, the lifting assembly 100 can be made more versatile.

[0078] Specifically, in one embodiment, the lifting member 12 includes a universal wheel, and the cleaning device 200 includes a driving wheel assembly and a cleaning assembly 24. The driving wheel assembly can be located in the middle or rear of the cleaning device 200, the cleaning assembly 24 can be located at the rear of the cleaning device 200, and the universal wheel can be located at the front of the cleaning device 200. The driving wheel assembly and the universal wheel can effectively support the cleaning device 200. The driving wheel assembly can drive the cleaning device 200 to move, and the universal wheel can be adapted to the direction of travel of the cleaning device 200, so that the cleaning device 200 moves in the desired direction. When the universal wheel assembly rises, the cleaning device 200 can be lifted, which is beneficial to increase the obstacle clearance height of the cleaning device 200 and to a certain extent avoid problems such as the cleaning device 200 getting the carpet wet and the carpet curling when it is on the carpet.

[0079] Please combine Figure 1 and Figure 2 The universal wheel assembly includes a rotating shaft 30, a bracket 32, and a universal wheel (ground contact wheel 34). The rotating shaft 30 is fixedly connected to the bracket 32. The rotating shaft 30 rotatably passes through the second through hole 28, and the universal wheel is rotatably connected to the bracket 32. When the universal wheel assembly is installed on the body 22, the universal wheel assembly can rotate as a whole relative to the body 22, and the universal wheel can rotate relative to the bracket 32, thereby guiding the travel direction of the cleaning device 200. The cleaning assembly 24 can perform operations on the floor, including but not limited to mopping and sweeping.

[0080] In one embodiment, the lifting member 12 includes a driving wheel, and the lifting assembly 100 can drive the driving wheel to lift and lower, thereby improving the obstacle crossing height and obstacle crossing capability of the cleaning device 200, allowing the cleaning device 200 to adapt to more cleaning environments.

[0081] In one embodiment, the lifting member 12 includes a laser direct structure (LDS). The lifting assembly 100 can drive the LDS to rise and fall, reducing obstructions. This improves the LDS's ability to detect environmental conditions at different heights of the cleaning device 200, allowing the cleaning device 200 to adapt to a wider range of cleaning environments. When not in use, the LDS can be lowered into the fuselage 22 to protect it. When in use, the LDS can be raised again.

[0082] In some embodiments, the lifting member 12 includes at least one of a rag, a side brush, and a roller brush. The lifting assembly 100 can drive the rag, side brush, and roller brush to rise and fall. On the one hand, during the return of the cleaning device 200 to the base station, the rag, side brush, and roller brush can be raised to reduce contamination of the ground. On the other hand, the friction between the cleaning device 200 and the ground can be reduced, allowing the cleaning device 200 to return to the base station more quickly and operate more energy-efficiently. During use, the lifting assembly 100 can drive the rag, side brush, and roller brush to descend, thereby providing greater friction between the rag, side brush, and roller brush and the ground, carpet, or rug, thereby improving the cleaning effect.

[0083] In one embodiment, the lifting member 12 includes a camera. The lifting assembly 100 can drive the camera to rise and fall, reducing obstructions. This allows the camera to capture images of the environment at different heights of the cleaning device 200, allowing the cleaning device 200 to adapt to a wider range of cleaning environments. When not in use, the camera can be lowered into the body 22 to protect it. When in use, the camera can be raised again.

[0084] In one embodiment, the lifting member 12 includes auxiliary wheels, which are additional wheels used for overcoming obstacles, etc. The lifting assembly 100 can drive the auxiliary wheels to lift and lower, thereby increasing the obstacle clearance height and obstacle clearance capability of the cleaning device 200, making the cleaning device 200 adaptable to more cleaning environments.

[0085] Please combine Figures 1 to 4 A cleaning device 200 according to an embodiment of the present invention includes a control member, a body, and a lifting assembly 100 according to any of the above embodiments. The control member is used to control the lifting assembly 100 to lift the lifting member 12 relative to a reference feature 22 on the body.

[0086] In the above-mentioned cleaning equipment 200, the first transmission member 18 and the second transmission member 20 are connected by threads, and the driving member 14 causes the lifting member 12 to rise and fall through the threaded connection between the first transmission member 18 and the second transmission member 20, so that the cleaning equipment 200 equipped with the lifting assembly 100 can control the lifting member 12 to rise and fall, thereby expanding the application range of the lifting member 12 and facilitating the use of the cleaning equipment 200.

[0087] Specifically, the cleaning device 200 includes but is not limited to a floor scrubber, a sweeping robot, a mopping robot, and other devices with cleaning functions. Optionally, in one embodiment, when the lifting assembly 100 is located at the front of the body 22, when the lifting member 12 is lowered relative to the body 22, the cleaning device 200 can be raised. Figure 4 As shown, the obstacle clearance height and cleaning effect are improved.

[0088] Reference features on the fuselage 22 include but are not limited to the fuselage center point, center of gravity, central axis, chassis plane, top cover plane, horizontal center plane, etc.

[0089] In one embodiment, when the cleaning device 100 detects an obstacle that is higher than a first threshold height and lower than a second threshold height (where the second threshold height is greater than the first threshold height), the control unit can control the universal wheels to descend and the body 22 to rise, thereby completing the obstacle clearance. The second threshold height and the first threshold height can be set as needed and are not limited in this invention.

[0090] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0091] 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 purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lifting assembly for cleaning equipment, characterized in that: The lifting assembly includes a lifting member, a driving member and a transmission assembly, the transmission assembly includes a first transmission member and a second transmission member, the first transmission member and the second transmission member are connected by threads, the driving member is connected to the lifting member through the first transmission member and the second transmission member in turn, the driving member is configured to drive the first transmission member to rotate, and the second transmission member is configured to convert the rotational motion of the first transmission member into the rising and falling motion of the lifting member.

2. The lifting assembly according to claim 1, characterized in that: The first transmission member is provided with a first through hole, the inner wall of the first through hole is provided with an internal thread, the outer circumferential surface of the second transmission member is provided with an external thread, the second transmission member passes through the first through hole, and the internal thread is connected to the external thread.

3. The lifting assembly according to claim 1 or 2, characterized in that: The second transmission member is provided with a second through hole. The lifting member includes a rotating shaft and a bracket. The rotating shaft rotatably passes through the second through hole. The bracket is connected to one end of the rotating shaft.

4. The lifting assembly according to claim 3, characterized in that: The lifting member includes a ground contact wheel, and the ground contact wheel is rotatably mounted on the bracket.

5. The lifting assembly according to claim 3, characterized in that: The lifting assembly includes a clamping ring, and the first end of the rotating shaft away from the bracket protrudes from the second transmission member. The outer peripheral surface of the first end is provided with a clamping groove. The clamping ring is embedded in the clamping groove so that the second transmission member can drive the rotating shaft to rise, and then drive the lifting member to rise. When the second transmission member descends, it can abut against the bracket to drive the lifting member to descend.

6. The lifting assembly according to claim 1, wherein: The lifting assembly includes an end cover, the end cover is provided with an accommodating cavity, the side wall of the accommodating cavity is provided with a first limiting portion, the outer peripheral surface of the second transmission member is provided with a second limiting portion, and the first limiting portion is connected to the second limiting portion to limit the rotation of the second transmission member.

7. The lifting assembly according to claim 6, characterized in that: One of the first limiting portion and the second limiting portion is provided with a limiting notch, and the other is provided with a limiting rib, and the limiting rib is accommodated in the limiting notch.

8. The lifting assembly according to claim 1, wherein: The transmission assembly includes a driving gear connected to the output shaft of the driving member. A gear portion is provided on the outer peripheral surface of the first transmission member, and the driving gear is engaged with the gear portion.

9. The lifting assembly according to claim 8, characterized in that: The upper end and the lower end of the first transmission member are respectively sleeved with bearings, and the gear part is located between the upper end and the lower end.

10. The lifting assembly according to claim 1, wherein: The lifting component includes at least one of a universal wheel, a driving wheel, a laser radar, a rag, a side brush, a roller brush, a camera, and an auxiliary wheel.

11. A cleaning device, characterized in that: include: Controls; body; as well as The lifting assembly according to any one of claims 1 to 10, wherein: The control member is used to control the lifting assembly to make the lifting member rise and fall relative to the reference feature on the fuselage.

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