Lifting mechanism, rotating module, cleaning device and cleaning equipment

Abstract

The utility model relates to a lifting mechanism, a rotating module, a cleaning device and cleaning equipment, the lifting mechanism is applied to the cleaning equipment, and the cleaning equipment is used for cleaning a to-be-cleaned surface; the lifting mechanism comprises a lifting part which can move in a first preset direction and can rotate in a second preset direction perpendicular to the first preset direction; the driving piece is arranged to rotate forwards or reversely in the second preset direction and is fixed in the first preset direction; a through hole is formed in the driving part in the first preset direction; the lifting piece is arranged in the through hole in a penetrating manner and is in threaded fit with the driving piece; and the damping part is arranged in the rotating circumferential direction of the lifting part in the second preset direction so as to provide damping force when the lifting part rotates in the second preset direction. According to the scheme, transmission friction can be reduced, and noise can be lowered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a lifting mechanism, a rotating module, a cleaning device and a cleaning equipment. BACKGROUND

[0002] The cleaning equipment generally drives the lifting rod through the driving system of the rotating module, so that the lifting rod is lowered, so that the cleaning part connected at the end of the lifting rod can contact the surface to be cleaned, and cleaning is realized.

[0003] In the related art, the driving system is in transmission connection with the lifting rod through a transmission set, the output gear of the transmission set is fixedly connected with the lifting rod, and the output gear is arranged to be movable up and down, so as to control the rotation and lifting of the output gear through the transmission set, and further to control the rotation and lifting of the output gear and the lifting rod as a whole, which is easy to cause friction loss of the output gear during up and down displacement, affecting the service life of the gear set, and also easy to cause large transmission noise. CONTENT OF THE UTILITY MODEL

[0004] To solve or partially solve the problems in the related art, the present application provides a lifting mechanism, a rotating module, a cleaning device and a cleaning equipment, which can reduce transmission friction and noise.

[0005] The first aspect of the present application provides a lifting mechanism applied to a cleaning equipment, the cleaning equipment being used for cleaning a surface to be cleaned; the lifting mechanism comprising:

[0006] a lifting part, movable in a first preset direction and rotatably arranged in a second preset direction perpendicular to the first preset direction;

[0007] a driving part, arranged to be forward or reverse rotated in the second preset direction and fixed in the first preset direction; the driving part being provided with a through hole in the first preset direction; the lifting part being arranged in the through hole and threadedly matched with the driving part;

[0008] a damping part, arranged along the rotation circumferential direction of the lifting part in the second preset direction to provide damping force when the lifting part rotates in the second preset direction.

[0009] In an embodiment, the damping part comprises a damping bearing, and the damping bearing is sleeved on the lifting part.

[0010] The damping bearing is provided with a rolling groove and a rolling part accommodated in the rolling groove, the rolling groove is provided with a damping part between two ends in the second preset direction, and the groove depth of the damping part is smaller than the groove depth of the two ends of the rolling groove.

[0011] In one embodiment, the rolling groove is provided with rolling portions at both ends of the second preset direction, the groove depth of the rolling portions is greater than the damping portion, and is less than or equal to the diameter of the rolling member.

[0012] In one embodiment, the longitudinal section of the rolling groove is M-shaped.

[0013] In one embodiment, the lifting member comprises a lifting shaft, the lifting shaft is arranged through the through hole, and at least part of the outer peripheral wall is provided with a connecting portion;

[0014] At least part of the inner peripheral wall of the through hole of the driving member is provided with a matching portion which is threadedly matched with the connecting portion, so that when the driving member rotates in the second preset direction, the lifting shaft rotates relatively and moves along the first preset direction;

[0015] Among them, the first preset direction is the axial direction of the lifting shaft, and the second preset direction is the circumferential direction of the lifting shaft.

[0016] In one embodiment, the driving member comprises a body and an extension portion extending from the body along the axial direction of the lifting shaft, and the through hole penetrates the body and the extension portion;

[0017] The matching portion is arranged on at least part of the inner peripheral wall of the through hole in the body and / or the extension portion.

[0018] In one embodiment, the matching portion comprises an internal thread arranged on at least part of the inner peripheral wall of the through hole; the connecting portion comprises an external thread arranged on at least part of the outer peripheral wall of the lifting shaft arranged through the through hole; the internal thread and the external thread are matched; or,

[0019] The matching portion comprises a protrusion arranged on at least part of the inner peripheral wall of the through hole; the connecting portion comprises an external thread arranged on at least part of the outer peripheral wall of the lifting shaft arranged through the through hole; the protrusion is movably embedded in the external thread.

[0020] In one embodiment, it further comprises a sleeving member;

[0021] The sleeving member is sleeved on the lifting member and is fixedly connected with the lifting member;

[0022] The damping member is sleeved on the lifting member, is fixed along the first preset direction with the lifting member, and is movably connected along the second preset direction with the lifting member;

[0023] The sleeving member is located between the damping member and the driving member, and abuts against the damping member.

[0024] In an embodiment, a limiting portion is arranged on the side of the sleeve member facing the driving member, and a blocking portion is arranged on the side of the driving member facing the sleeve member, so that the limiting portion and the blocking portion abut when the lifting member moves to the first preset height.

[0025] In an embodiment, a light sensing assembly is further included, and the light sensing assembly is connected to the driving system of the rotating module.

[0026] The damping member or the sleeve member is provided with a light shielding portion for shielding the light sensing assembly arranged on the rotating module.

[0027] In an embodiment, the outer peripheral wall of the damping member is provided with a sliding portion, and the body of the rotating module is provided with a sliding rail corresponding to the sliding portion and a stopper.

[0028] The sliding portion of the damping member is used for sliding along the sliding rail and abutting against the stopper when the lifting member reaches the second preset height.

[0029] In an embodiment, the driving member includes a driving gear connected to the driving system of the rotating module to transmit the power output by the driving motor to the lifting member.

[0030] The end of the lifting member close to the surface to be cleaned is provided with a mounting portion for connecting the cleaning member of the rotating module.

[0031] The second aspect of the present application provides a rotating module including the lifting mechanism as described above, and the rotating module further includes:

[0032] a body for accommodating the lifting mechanism;

[0033] a cleaning member connected to the end of the lifting member close to the surface to be cleaned;

[0034] a driving system in transmission connection with the driving member for transmitting power to the lifting member through the driving member.

[0035] The third aspect of the present application provides a cleaning device including a swinging module and the rotating module as described above.

[0036] The fourth aspect of the present application provides a cleaning apparatus including the cleaning device as described above.

[0037] The technical scheme provided by the application can have the following beneficial effects: the lifting mechanism provided by the application is applied to a cleaning device, and the cleaning device is used for cleaning a surface to be cleaned; the lifting mechanism comprises: a lifting piece, which is movable in a first preset direction and is rotatably arranged in a second preset direction perpendicular to the first preset direction; a driving piece, which is arranged to rotate forward or reversely in the second preset direction and is fixed in the first preset direction; the driving piece is provided with a through hole in the first preset direction; the lifting piece is arranged in the through hole and threadedly cooperates with the driving piece; a damping piece is arranged along the rotation circumferential direction of the lifting piece in the second preset direction to provide a damping force when the lifting piece rotates in the second preset direction. The application provides the through hole in the driving piece, the lifting piece is arranged in the through hole and threadedly cooperates with the driving piece, when the driving piece rotates forward or reversely in the second preset direction, the driving force is transmitted to the lifting piece through the thread cooperation, when the lifting piece is subjected to the damping force of the damping piece, the driving piece rotates relatively, the driving piece generates the force in the first preset direction on the lifting piece, because the driving piece is fixed in the first preset direction and the lifting piece is movably arranged in the first preset direction, the lifting piece is lifted or lowered in the first preset direction. The application separates the movement of the driving piece and the lifting piece in the first preset direction, the driving piece does not move up and down, and the lifting piece is directly lifted and lowered through the thread cooperation, so that the transmission friction of the lifting mechanism can be reduced, the service life can be improved, and the noise generated in the transmission process can be reduced.

[0038] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0039] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout and in which:

[0040] Figure 1 is a structural schematic diagram of the lifting mechanism shown in the embodiment of the application;

[0041] Figure 2 is Figure 1 is an exploded structural schematic diagram of the lifting mechanism shown;

[0042] Figure 3 is Figure 1 is a top view structural schematic diagram of the lifting mechanism shown;

[0043] Figure 4 is a structural schematic diagram of the driving piece shown in the embodiment of the application;

[0044] Figure 5 isFigure 4 Another structural schematic view of the driving member is shown;

[0045] Figure 6 A structural schematic view of a rotating module is shown in the embodiments of the present application;

[0046] Figure 7 A structural schematic view of a cleaning device is shown in the embodiments of the present application;

[0047] Figure 8 A system schematic block diagram of a cleaning apparatus is shown in the embodiments of the present application.

[0048] Reference signs: 10, lifting mechanism; 11, lifting member; 110, connecting part; 111, lifting shaft; Y, lifting shaft axial direction; R, lifting shaft circumferential direction; 112, sleeving member; 1121, limiting part; 113, damping member; 1130, damping bearing; 1131, rolling groove; 1132, rolling member; 1133, sliding part; 114, mounting part; 115, extension part; 12, driving member; 120, matching part; 1200, through hole; 121, driving member body; 122, extension part; 123, blocking part; 13, light sensing assembly; 20, rotating module; 21, machine body; 22, cleaning member; 23, driving system; 30, cleaning device; 40, cleaning apparatus. DETAILED DESCRIPTION

[0049] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0050] It should be understood that although the terms "first", "second", "third", etc. are used to describe various information in the present application, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0051] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0052] Unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixed connection, or detachable connection or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0054] Referring to Figure 1 , Figure 2 and Figure 4 , the present embodiment provides a lifting mechanism 10, which is applied to a cleaning device for cleaning a to-be-cleaned surface, the lifting mechanism 10 comprising a lifting piece 11, which is movable in a first preset direction and rotatably arranged in a second preset direction perpendicular to the first preset direction; a driving piece 12, which is arranged to rotate forward or reverse in the second preset direction and is fixed in the first preset direction; the driving piece 12 is provided with a through hole 1200 in the first preset direction; the lifting piece 11 is arranged in the through hole 1200 and threadedly cooperates with the driving piece 12; a damping piece 113 is arranged along the rotation circumferential direction of the lifting piece 11 in the second preset direction to provide damping force when the lifting piece 11 rotates in the second preset direction.

[0055] Among them, the cleaning device can be a sweeping robot, a mopping robot or a sweeping and mopping integrated robot, but it can also be other types of machines for cleaning the to-be-cleaned surface, and no specific limitation is made. When the cleaning device is the above sweeping robot, mopping robot or sweeping and mopping integrated robot, the to-be-cleaned surface can be the ground. It should be noted that lifting refers to the lifting movement relative to the to-be-cleaned surface, which can be vertical, longitudinal or transverse in specific use scenarios.

[0056] The driving member 12 can rotate in a positive direction or a reverse direction along a second preset direction. The lifting member 11 can rotate synchronously with the driving member 12 in a positive direction or a reverse direction by thread cooperation when the driving member 12 does not rotate relative to the lifting member 11. The lifting member 11 can move along the first preset direction by thread abutting force when the driving member 12 rotates relative to the lifting member 11 because the driving member 12 is fixed in the first preset direction.

[0057] The damping force provided by the damping member 113 can control whether the lifting member 11 rotates relative to the driving member 12 or not. For example, the lifting member 11 rotates relative to the driving member 12 when the damping member 113 applies damping force to the lifting member 11.

[0058] The first preset direction can be a descending direction of the lifting member 11, and the second preset direction can be a positive rotation direction of the driving member 12 and the lifting member 11. The positive rotation can be a clockwise rotation direction. For example, the driving member 12 rotates clockwise, the lifting member 11 passing through the through hole 1200 of the driving member 12 rotates under the torque transmitted by the driving member 12, the lifting member 11 rotates relative to the driving member 12 under the damping force of the damping member 113, and then descends.

[0059] The driving member 12 and the lifting member 11 are arranged in the embodiment. The driving member 12 does not move in the first preset direction along with the lifting member 11, but the lifting member 11 is controlled to ascend and descend by rotation of the driving member 12 and thread cooperation. The transmission friction of the lifting mechanism 10 is reduced, the service life is improved, and the noise generated by transmission is reduced.

[0060] In addition, the lifting mechanism 10 drives the lifting member 11 to ascend and descend along the first preset direction without driving the driving member 12 to ascend and descend, so that the power loss is reduced and energy saving is achieved.

[0061] Referring to Figure 3 In one embodiment, the damping member 113 includes a damping bearing 1130 sleeved on the lifting member 11. The damping bearing 1130 is provided with a rolling groove 1131 and a rolling element 1132 (not shown) accommodated in the rolling groove 1131. The rolling groove 1131 is provided with a damping portion between two ends in the second preset direction, and the groove depth of the damping portion is smaller than the groove depth of the two ends of the rolling groove 1131.

[0062] The opening of the rolling groove 1131 can abut against the lifting piece 11, for example, the outer circumferential wall of the lifting piece 11, so that the rolling groove 1131 is closed. The rolling groove 1131 can be arranged along the second preset direction, so that when the lifting piece 11 rotates along the second preset direction, the rolling piece 1132 arranged in the rolling groove 1131 can rotate relatively. It can be understood that when the rolling piece 1132 rotates freely without the damping force of the rolling groove 1131, the lifting piece 11 will not be subjected to the damping force of the rolling piece 1132, so that the relative rotation between the lifting piece 11 and the driving piece 12 will not occur, and when the rotation of the rolling piece 1132 is reduced in speed or unable to rotate due to the damping force of the rolling groove 1131, the lifting piece 11 is subjected to the damping force of the rolling piece 1132, so that the relative rotation between the lifting piece 11 and the driving piece 12 occurs.

[0063] The part of the rolling groove 1131 for impeding the rotation of the rolling piece 1132 can be provided as a damping part, the damping part is arranged between the two ends of the rolling groove 1131, and the groove depth of the damping part can be less than the diameter of the rolling piece 1132, so that the damping force can be provided.

[0064] When the lifting piece 11 rotates along the second preset direction, the rolling piece 1132 is driven to rotate relatively, the rolling piece 1132 abuts against the damping part to generate a damping force; the lifting piece 11 is subjected to the damping force to rotate relatively with the driving piece 12, and then is lifted or lowered. For example, when the driving piece 12 is switched from forward rotation to reverse rotation, the rotation direction of the lifting piece 11 is synchronously switched to reverse, so that the rolling piece 1132 is driven to move from one end of the rolling groove 1131 towards the damping part, abuts against the damping part, the lifting piece 11 is subjected to the damping force to rotate relatively with the driving piece 12, so as to be lifted, when the lifting piece 11 is lifted to the highest position, the lifting piece 11 and the driving piece 12 can be limited to rotate synchronously; the driving force of the driving piece 12 is greater than the damping force of the damping piece 113, so when the lifting piece 11 rotates synchronously with the driving piece 12, the torque is transmitted to the rolling piece 1132, so that the rolling piece 1132 overcomes the damping force of the damping part to pass through the damping part, reaches the other end of the rolling groove 1131 and continues to roll.

[0065] The rolling groove 1131 and the damping part in the rolling groove 1131 of the damping bearing 1130 are arranged, so that the lifting piece 11 can be subjected to the damping force when rotating along the second preset direction in forward rotation and reverse rotation, so as to be lifted and lowered.

[0066] The rolling piece can be a structure such as a ball or a needle, which is not limited in the embodiment.

[0067] Referring to Figure 3 In one of the embodiments, the rolling groove 1131 is provided with a rolling part at each end in the second preset direction, the groove depth of the rolling part is greater than that of the damping part, and is less than or equal to the diameter of the rolling piece 1132.

[0068] By setting the rolling part, the rolling piece 1132 can roll from one end of the rolling part towards the damping part, and after passing the damping part, continue to roll to the other end of the rolling part. Since the groove depth of the rolling part is greater than the damping part, and the groove depth of the rolling part is less than or equal to the diameter of the rolling piece 1132, the rolling damping force on the rolling piece 1132 is smaller, and thus the damping force exerted on the lifting piece 11 is also smaller.

[0069] The embodiment sets the rolling part at both ends of the rolling groove 1131, and sets the damping part between the rolling parts. When the driving piece 12 switches the rotation direction, the lifting piece 11 switches the rotation direction, which makes the rolling piece 1132 move from the rolling part towards the damping part and abut against the damping part, thereby providing damping, so that the lifting piece 11 will first lift or descend before synchronously rotating with the driving piece 12. In this way, the lifting piece 11 is prevented from rotating at high speed during lifting and descending, and the lifting piece 11 is also prevented from needing to change the lifting position, for example, from descending to ascending in the first preset direction, and also needing to reverse the rotation before lifting. The lifting piece 11 of the embodiment will first perform the lifting or descending movement when the driving piece 12 changes the rotation direction, and then synchronously rotate with the driving piece 12, thereby improving the lifting response speed of the lifting mechanism 10.

[0070] Referring to Figure 3 In one embodiment, the longitudinal section of the rolling groove 1131 is in the shape of M.

[0071] The damping part can be arranged in the middle of the rolling groove 1131, so that the longitudinal section of the rolling groove 1131 is in the shape of M with large ends and a small middle, so that the time for the rolling piece 1132 to move from one end of the rolling part to the damping part is the same as the time for the rolling piece 1132 to move from the other end of the rolling part to the damping part, thereby making the lifting piece 11 have the same response speed when lifting and descending when the driving piece 12 switches the rotation direction, and also making the structure of the damping bearing 1130 symmetrical and compact, thereby reducing the processing and installation difficulty and effectively reducing the cost.

[0072] Referring to Figure 2 and Figure 4 In one embodiment, the lifting piece 11 includes a lifting shaft 111, the lifting shaft 111 is arranged in the through hole 1200, and at least part of the outer peripheral wall is provided with a connecting part 110; at least part of the inner peripheral wall of the through hole 1200 of the driving piece 12 is provided with a matching part 120 which is threadedly matched with the connecting part 110, so that when the driving piece 12 rotates in the second preset direction, the lifting shaft 111 relatively rotates and moves in the first preset direction. The first preset direction is the axial direction Y of the lifting shaft 111, and the second preset direction is the circumferential direction R of the lifting shaft 111.

[0073] The connecting portion 110 can be arranged on the outer wall of the through hole 1200 through which the lifting shaft 111 passes, and the length of the connecting portion 110 in the axial direction Y is set according to the preset stroke of the lifting shaft 111. For example, in order to enable the lifting shaft 111 to extend farther towards the surface to be cleaned, the connecting portion 110 can be arranged to have a greater extension length in the axial direction Y, thereby increasing the distance of the lifting shaft 111 relative to the driving member 12 in the axial direction Y. The present embodiment is not limited in terms of specific dimensions.

[0074] When the driving member 12 rotates along the circumferential direction R of the lifting shaft 111, the connecting portion 110 is caused to rotate by the force of the matching portion 120 due to the threaded cooperation between the matching portion 120 of the driving member 12 and the connecting portion 110 of the lifting member 11. When the lifting member 11 is caused to rotate relative to the driving member 12 due to the damping force, the lifting member 11 is caused to move in the axial direction Y due to the force in the axial direction Y of the driving member 12 in the axial direction Y of the lifting shaft 111, which is perpendicular to the circumferential direction R.

[0075] Referring to Figure 3 and Figure 4 In one embodiment, the driving member 12 includes a body 121 and an extension 122 extending from the body 121 in the axial direction Y of the lifting shaft 111, and the through hole 1200 passes through the body 121 and the extension 122. The matching portion 120 is arranged on at least part of the inner wall of the through hole 1200 in the body 121 and / or the extension 122.

[0076] The body 121 can be used for transmission connection with the driving system of the rotating module, the extension 122 can be arranged at the position of the through hole 1200 and extend from the body 121 in a first preset direction, i.e., the axial direction Y of the lifting shaft 111. The through hole 1200 can include a portion passing through the body 121 and a portion passing through the extension 122. The matching portion 120 can be arranged on the portion of the body 121, on the portion of the extension 122, or partially on the body 121 and partially on the extension 122. In addition, the matching portion 120 can be arranged on part of the inner wall of the through hole 1200 or on the entire inner wall of the through hole 1200. It can be connected with the connecting portion 110 of the lifting shaft 111.

[0077] In one embodiment, the matching portion 120 is arranged on the entire inner wall of the through hole 1200 to increase the length of the connection with the connecting portion 110, thereby increasing the maximum stroke of the lifting shaft 111 in the axial direction Y.

[0078] In one of the embodiments, the fitting part 120 comprises an inner thread arranged on at least part of the inner circumferential wall of the through hole 1200; the connecting part 110 comprises an outer thread arranged on at least part of the outer circumferential wall of the through hole 1200 through which the lifting shaft 111 passes; the inner thread and the outer thread are matched; or, the fitting part 120 comprises a protrusion arranged on at least part of the inner circumferential wall of the through hole 1200; the connecting part 110 comprises an outer thread arranged on at least part of the outer circumferential wall of the through hole 1200 through which the lifting shaft 111 passes; the protrusion is movably embedded in the outer thread.

[0079] For example, the fitting part 120 comprises an inner thread arranged on the inner circumferential wall of the through hole 1200; the connecting part 110 comprises an outer thread arranged on the outer circumferential wall of the through hole 1200 through which the lifting shaft 111 passes; the inner thread and the outer thread are matched. The lifting shaft 111 passes through the through hole 1200 of the driving part 12 and is connected by the thread matching of the outer thread and the inner thread. When the driving part 12 rotates along the circumferential direction R of the lifting shaft 111, the inner thread of the fitting part 120 rotates synchronously, and the outer thread of the connecting part 110 rotates relatively to generate the movement of the lifting shaft 111 in the axial direction Y. The shape of the inner thread and the outer thread is not limited in the embodiment, for example, it can be triangular thread, rectangular thread, trapezoidal thread, zigzag thread and other special-shaped thread; as long as the thread matching connection is achieved.

[0080] For example, the fitting part 120 comprises a protrusion (not shown in the figure) arranged on at least part of the inner circumferential wall of the through hole 1200; the connecting part 110 comprises an outer thread arranged on at least part of the outer circumferential wall of the through hole 1200 through which the lifting shaft 111 passes; the protrusion is movably embedded in the outer thread. When the driving part 12 rotates, the protrusion rotates synchronously to make a rotary motion along the shape of the outer thread. When the lifting part 11 is subjected to the damping force to rotate relatively, the outer thread is subjected to the abutting force of the protrusion to move relatively to the protrusion, thereby making the lifting shaft 111 move in the axial direction Y.

[0081] In one of the embodiments, in order to reduce the friction, the shape of the protrusion can be a spherical shape, but other shapes that can be embedded in the outer thread and rotate, such as a square shape and a cylindrical shape, can also be used, and the embodiment is not limited in this regard.

[0082] Referring to Figure 1 and Figure 2 In one of the embodiments, the lifting mechanism 10 further comprises a sleeving part 112; the sleeving part 112 is sleeved on the lifting part 11 and is fixedly connected with the lifting part 11; the damping part 113 is sleeved on the lifting part 11 and is fixedly connected with the lifting part 11 along the first preset direction and movably connected with the lifting part 11 along the second preset direction; the sleeving part 112 is located between the damping part 113 and the driving part 12 and abuts against the damping part 113.

[0083] The sleeve member 112 can be provided with a through hole (not shown) to be sleeved on the lifting member 11.

[0084] The damping member 113, the sleeve member 112 and the driving member 12 can be sequentially arranged on the lifting member 11 along a first preset direction. For the convenience of understanding, the first preset direction can be a downward direction towards the surface to be cleaned, for example. When the lifting member 11 moves downward along the first preset direction, the sleeve member 112 moves downward along with the lifting member 11 and approaches the driving member 12, because the sleeve member 112 is fixedly connected with the lifting member 11 and the driving member 12 is fixed along the first preset direction. The damping member 113 also moves downward along with the lifting member 11, because the damping member 113 is fixedly connected with the lifting member 11 along the first preset direction. Correspondingly, when the lifting member 11 moves upward, the sleeve member 112 and the damping member 113 move upward along with the lifting member 11 and move away from the driving member 12.

[0085] The sleeve member 112 can abut against the damping member 113 to push the damping member 113 to move upward when the sleeve member 112 moves upward along with the lifting member 11.

[0086] The end of the lifting member 11 away from the surface to be cleaned can at least partially extend out of the damping member 113. The part of the lifting member 11 extending out of the damping member 113 is provided with an extension 115 in the circumferential direction. An abutting assembly (not shown) can be arranged between the extension 115 and the damping member 113. The damping member 113 is clamped between the abutting assembly and the sleeve member 112. When the lifting member 11 moves upward, the sleeve member 112 pushes the damping member 113 to move upward. When the lifting member 11 moves downward, the damping member 113 is pulled to move downward by the abutting assembly, so that the damping member 113 is fixedly connected with the lifting member 11 along the first preset direction and movably connected with the lifting member 11 along a second preset direction.

[0087] In one embodiment, the abutting assembly can include an abutting member and a gasket. The abutting member abuts against the extension 115 of the lifting member 11 and the gasket. The gasket also abuts against the upper side of the damping member 113. When the lifting member 11 moves downward, the extension 115 pulls the abutting member to apply an abutting force to the gasket, and the gasket pulls the damping member 113 to move downward.

[0088] To limit the movement of the sleeve member 112, the sleeve member 112 is provided with a limiting portion 1121 on the side towards the driving member 12, and the driving member 12 is provided with a blocking portion 123 on the side towards the sleeve member 112, so that the limiting portion 1121 and the blocking portion 123 abut against each other when the lifting member 11 moves to a first preset height. Figure 1 Figure 2 Figure 5

[0089] ​​​The limiting portion 1121 can be protruded from the sleeve member 112 towards the end surface of the driving member 12 and arranged along the second preset direction of the lifting member 11. When the lifting member 11 moves to the first preset height along the first preset direction, the sleeve member 112 moves to the driving member 12 along with the lifting member 11 and abuts against the blocking portion 123 arranged on the driving member 12, so as to limit the lifting member 11. The driving force of the driving member 12 overcomes the damping force of the damping member 113, so that the lifting member 11 rotates synchronously with the driving member 12. In this embodiment, the limiting portion 1121 and the blocking portion 123 are arranged, so that the lifting member 11 can be limited after being lifted or lowered.

[0090] The limiting portion 1121 can be provided with one or more limiting platforms, for example, two limiting platforms, arranged on the side of the sleeve member 112 close to the driving member 12. The driving member 12 can be correspondingly provided with two blocking portions 123. When the lifting member 11 is lowered, the two limiting platforms abut against the two blocking portions 123 respectively, so as to improve the transmission stability and the reliability of the fixed connection. In this embodiment, the number of the limiting platforms and the blocking portions 123 is not limited. The limiting platform includes an abutting surface perpendicular to the end surface of the sleeve member 112 and abuts against the blocking portion 123 when the lifting member 11 reaches the first preset height. The abutting surface can be increased to improve the abutting reliability and stability. The limiting platform can be an arc-shaped step, but can also be a square or a buckle and the like.

[0091] In one of the embodiments, the structure of the blocking portion 123 can be matched with the arc-shaped step and have the same shape as the limiting platform but in the opposite direction, so as to improve the matching degree of the limiting portion 1121 and the blocking portion 123 and further improve the abutting reliability and stability.

[0092] For the convenience of description, the working principle is illustrated by taking the direction close to the surface to be cleaned as the lowering direction and the direction away from the surface to be cleaned as the lifting direction. The driving member 12 and the sleeve member 112 can include the lower side close to the surface to be cleaned and the upper side opposite to the lower side in the first preset direction. The blocking portion 123 can be arranged on the upper side of the driving member 12 and the limiting portion 1121 can be arranged on the lower side of the sleeve member 112. When the driving member 12 rotates clockwise, the lifting member 11 can rotate relatively and approach the surface to be cleaned. The limiting portion 1121 follows the lifting member 11 to descend, approaches the driving member 12 and abuts against the blocking portion 123 arranged on the upper side of the driving member 12 after descending a certain distance, so as to make the lifting member 11 and the driving member 12 fixedly abut against each other and rotate synchronously until the driving member 12 rotates counterclockwise. The blocking portion 123 and the limiting portion 1121 are separated, so as to make the connecting portion 110 and the cooperating portion 120 rotate relatively again and further control the lifting member 11 to lift. It should be noted that the above-mentioned “counterclockwise”, “clockwise”, “lifting” and “lowering” are only for illustration and do not limit the specific embodiments.

[0093] It can be understood that the position of the sleeving member 112 fixed on the lifting member 11 can be set according to the movement distance required by the operation of the lifting member 11, so that it can abut against the blocking part 123 when moving to the first preset height. In the matching stroke range of the connecting part 110 and the matching part 120, the greater the distance between the limiting part 1121 of the sleeving member 112 and the blocking part 123 of the driving member 12, the longer the distance that the lifting member 11 can move in the first preset direction. Therefore, the specific position of the sleeving member 112 on the lifting member 11 can be adaptively designed, so that the first preset height is designed, and the embodiment is not limited specifically.

[0094] In the embodiment, by setting the limiting part 1121 and the matching abutting blocking part 123, the movement of the lifting member 11 in the first preset direction can be controlled, so that it is fixedly abutted against the driving member 12 when reaching the first preset height, i.e., the descending position, and the abutment of the limiting part 1121 and the blocking part 123 is used to transmit power, so that the lifting member 11 and the driving member 12 can keep synchronous rotation, and the limiting part 1121 and the blocking part 123 are separated when the driving member 12 is reversed, so that the lifting member 11 moves reversely.

[0095] In other embodiments, the limiting part (not shown in the figure) can also be arranged at the position of the lifting member 11 close to the surface to be cleaned, and the blocking part (not shown in the figure) can be arranged at the lower side of the driving member 12. When the lifting member 11 needs to move upward away from the surface to be cleaned after ending the cleaning action, the limiting part moves toward the driving member 12 along with the lifting member 11, and abuts against the blocking part after rising to a certain height, so as to control the rising height of the lifting member 11. In other embodiments, the blocking parts can also be arranged at the upper side and the lower side of the driving member 12 respectively, and the limiting parts can be arranged at the upper segment and the lower segment of the lifting member 11 relative to the driving member 12, so as to limit the lifting member 11 when it moves downward and upward respectively.

[0096] Referring to Figure 3 In one of the embodiments, the outer peripheral wall of the damping member 113 is provided with a sliding part 1133, and the body of the rotating module is provided with a sliding rail and a stop block corresponding to the sliding part 1133; the sliding part 1133 of the damping member 113 is used for sliding along the sliding rail and abutting against the stop block when the lifting member 11 reaches the second preset height.

[0097] The sliding part 1133 can be formed protruding from the outer peripheral wall of the damping member 113, and is used for sliding in the sliding rail of the body of the rotating module synchronously when the lifting member 11 rises or falls in the first preset direction. It can be understood that the sliding rail is arranged in the first preset direction.

[0098] The block can be arranged on the body away from the surface to be cleaned, so that when the lifting piece 11 rises away from the body along the first preset direction, the sleeve piece 112 is driven to rise, the damping piece 113 is pushed by the sleeve piece 112, so that the sliding part 1133 is synchronously slid upward along the slide rail. When the lifting piece 11 reaches the second preset height, the sliding part 1133 and the block at one end of the slide rail abut, so as to limit the sliding part 1133, and then limit the damping piece 113. Since the damping piece 113 and the sleeve piece 112 abut, the sleeve piece 112 cannot continue to rise, and thus the lifting piece 11 reaches the rising position.

[0099] In combination with the above embodiment, when the lifting piece 11 descends to the first preset height, the limiting part 1121 of the sleeve piece 112 and the blocking part 123 of the driving piece 12 abut, so as to keep the lifting piece 11 in the descending position and rotate with the driving piece 12; when the lifting piece 11 rises to the second preset height, the sliding part 1133 of the damping piece 113 and the block of the body abut, so as to keep the lifting piece 11 in the rising position and rotate with the driving piece 12.

[0100] The embodiment realizes the limiting of the rising and descending of the lifting piece 11, so as to control the stroke of the lifting piece 11 and realize cleaning or stopping cleaning.

[0101] In one of the embodiments, the end of the lifting piece 11 away from the surface to be cleaned is provided with a buffer piece, which is used to connect with the body of the rotating module and buffer the up and down displacement of the lifting piece 11, so as to avoid impact with the body of the rotating module.

[0102] Referring to Figure 1 , Figure 2 and Figure 6 , in one of the embodiments, the lifting mechanism 10 further comprises a light sensing assembly 13, which is used to connect with the driving system of the rotating module; the damping piece 113 or the sleeve piece 112 is provided with a light shielding part 1122, which is used to shield the light sensing assembly 13 arranged on the rotating module.

[0103] The light shielding part 1122 can be arranged on the sleeve piece 112 in the circumferential direction R, or can also be arranged on the damping piece 113 in the circumferential direction R, so that when the lifting piece 11 rises away from the surface to be cleaned, the light shielding part 1122 of the sleeve piece 112 or the damping piece 113 rising with the lifting piece 11 can shield the light sensing assembly 13, and the light sensing assembly 13 transmits a light sensing signal to the driving system of the rotating module, so that the driving system can cut off or output power to the driving piece 12 in response to the light sensing signal.

[0104] The light sensing component 13 may include two light sensing signal lights (symmetrical to the one light sensing signal light shown in the figure). The light sensing signal lights are matched and set at a preset height, but this embodiment does not specifically limit the number.

[0105] See Figure 1 and Figure 2 In one embodiment, the drive member 12 includes a drive gear for connecting to the drive system of the rotating module to transmit the power output by the drive motor to the lifting member 11; the lifting member 11 has a mounting part 114 at one end near the surface to be cleaned, which is used to connect the cleaning part of the rotating module.

[0106] The drive gear can be used to connect with the drive system of the rotating module to transmit the power output by the drive motor to the lifting component 11.

[0107] The mounting part 114 is fixedly connected to the lifting member 11, and the cleaning member is fixedly connected to the mounting part 114, so that the movement of the cleaning member is synchronized with the lifting member 11.

[0108] The drive gear transmits the driving force of the drive system to drive the lifting component 11. When the drive gear controls the lifting component 11 to move towards the surface to be cleaned, the cleaning component moves synchronously to clean the surface. For example, the drive system can drive the drive gear to rotate clockwise or counterclockwise. When the drive gear rotates clockwise, the lifting component 11 descends, and the cleaning component moves synchronously towards the surface to be cleaned until the lifting component 11 moves to the limit position with the drive gear and rotates synchronously with the drive gear, thereby driving the cleaning component to rotate clockwise to clean the surface.

[0109] In this embodiment, the driving component 12 is set as a driving gear. The driving gear can output the power transmitted by the driving system, and the driving gear is provided with a through hole 1200 to accommodate the lifting component 11, so that the lifting component 11 can move up and down relative to the driving gear. This avoids the synchronous movement of the gear and the lifting component 11 in related technologies, or avoids the need to set up a lifting assembly and use a lead screw and bushing to control the lifting of the cleaning component. The lifting component 11 can be directly controlled to move up and down by simply through the threaded engagement between the driving gear and the lifting component 11, thereby controlling the lifting of the cleaning component.

[0110] Corresponding to the foregoing embodiments, this application also provides a rotating module, a cleaning device, a cleaning equipment, and corresponding embodiments.

[0111] See Figure 6The embodiment provides a rotating module 20, which comprises the lifting mechanism 10 and further comprises a body 21 for containing the lifting mechanism 10, a cleaning piece 22 (not shown in the figure) connected with the lifting piece 11 at one end close to the surface to be cleaned, and a driving system 23 in driving connection with the driving piece 12 for transmitting power to the lifting piece 11 through the driving piece 12.

[0112] The cleaning piece 22 can be a cloth tray for wet cleaning the surface to be cleaned, or can be an edge brush, an edge sweeper or a brush, which is not limited in the embodiment.

[0113] When the rotating module 20 performs the cleaning work, the driving system 23 transmits the driving force to the driving piece 12, drives the lifting piece 11 to move along the first preset direction and rotate along the second preset direction through the driving piece 12, so as to drive the cleaning piece 22 to move along the first preset direction and rotate along the second preset direction.

[0114] The driving system 23 can comprise a driving motor in driving connection with the driving piece 12 for outputting power to the driving piece 12. In one of the embodiments, the lifting mechanism 10 can further be provided with the light sensing assembly 13, and the driving system 23 can be connected with the light sensing assembly 13. When the light sensing assembly 13 is shielded by the light shielding part of the sleeve 112 or the damping piece 113, the driving system 23 can stop outputting power in response to the sensing signal of the light sensing assembly 13, so as to stop the driving piece 12 and the lifting piece 11, until the lifting piece 11 of the lifting mechanism 10 needs to be controlled to descend, the driving system 23 outputs the reverse driving force to the driving piece 12, so as to drive the lifting piece 11 to descend.

[0115] The surface to be cleaned can be a ground, and the direction close to the surface to be cleaned is a descending direction. Since the cleaning piece 22 is connected to the lifting piece 11 close to the ground, the cleaning piece 22 can contact the ground after the lifting piece 11 descends, so as to realize cleaning.

[0116] The rotating module 20 provided by the embodiment separates the lifting piece 11 and the driving piece 12 of the lifting mechanism 10 in the first preset direction, so that the lifting piece 11 moves along the first preset direction when rotating relative to the driving piece 12, thereby controlling the cleaning piece 22 to approach or move away from the surface to be cleaned during the cleaning work, and realizing the cleaning function. Since the driving piece 12 is fixed in the first preset direction, the abrasion in the transmission process is reduced, and the transmission noise is also reduced. In addition, since only the lifting piece 11 is controlled to move along the first preset direction, the energy consumption and the power requirement are lower than those when the driving piece 12 and the lifting piece 11 move together along the first preset direction, which is beneficial to improving the transmission efficiency and enhancing the energy saving performance.

[0117] In one of the embodiments, the inner side wall of the body 21 can be provided with a sliding rail in the first preset direction, and a stopper is arranged at the top away from the surface to be cleaned, so as to realize cooperation with the sliding part 1133 of the damping member 113.

[0118] Referring to Figure 7 The embodiment provides a cleaning device 30, which comprises a swing module 31 and the rotating module 20 as described above.

[0119] The swing module 31 can be used to drive the rotating module 20 to swing, and the rotating module 20 can be used to control the lifting member 11 to rotate and lift.

[0120] Referring to Figure 8 The embodiment provides a cleaning equipment 40, which comprises the cleaning device 30 as described above.

[0121] The cleaning equipment 40 can be a cleaning robot, for example, a sweeping robot, a mopping robot or a sweeping and mopping integrated robot.

[0122] In one of the embodiments, the cleaning equipment 40 can comprise a shell and a lifting opening arranged on the shell and close to the surface to be cleaned, the shell is used to accommodate the cleaning device 30, and the lifting opening is used to allow the cleaning member 22 of the rotating module 20 of the cleaning device 30 to descend towards the surface to be cleaned.

[0123] The cleaning equipment 40 provided by the embodiment separates the lifting member 11 and the driving member 12 of the lifting mechanism 10 in the first preset direction, so that the lifting member 11 moves in the first preset direction when rotating relative to the driving member 12, thereby being able to control the cleaning member 22 to approach or move away from the surface to be cleaned, and realize the cleaning function. Since the driving member 12 is fixed in the first preset direction, the abrasion in the transmission process is reduced, the transmission noise is reduced, the transmission loss of the driving system 23 is also reduced, the cleaning device 30 is more energy-saving, and the endurance of the cleaning equipment 40 is improved, thereby improving the user experience.

[0124] The scheme of the present application has been described in detail above with reference to the drawings. In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily required by the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined and reduced in sequence according to actual needs, and the modules in the device embodiments of the present application can be combined, divided and reduced according to actual needs.

[0125] Having described various embodiments of the application, it is to be understood that the above description is meant to be illustrative only, and that many modifications and variations of the embodiments described herein are possible. It is therefore to be understood that within the scope of the appended claims, and their equivalents, many alternatives to the embodiments described herein are possible. The selection of terms to be used in the description is not intended to limit the scope of the embodiments described herein, but rather to best explain the principles of the embodiments, practical application, or improvement over the technology in the art, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A lifting mechanism, characterized in that The application is applied to a cleaning device for cleaning a surface to be cleaned; the lifting mechanism comprises: a lifting member movable in a first preset direction and rotatable in a second preset direction perpendicular to the first preset direction; a driving member configured to rotate in the second preset direction and fixed in the first preset direction; the driving member is provided with a through hole in the first preset direction; the lifting member is arranged in the through hole and threadedly connected with the driving member; a damping member arranged along the circumferential direction of the rotation of the lifting member in the second preset direction to provide damping force when the lifting member rotates in the second preset direction.

2. A lifting mechanism according to claim 1, wherein The damping member comprises a damping bearing sleeved on the lifting member; wherein the damping bearing is provided with a rolling groove and a rolling element accommodated in the rolling groove; the rolling groove is provided with a damping portion between two ends in the second preset direction; the groove depth of the damping portion is smaller than the groove depth of the two ends of the rolling groove.

3. The lifting mechanism according to claim 2, wherein the rolling groove is provided with a rolling portion at each of the two ends in the second preset direction; the groove depth of the rolling portion is greater than that of the damping portion and smaller than or equal to the diameter of the rolling element.

4. A lifting mechanism according to claim 3, wherein The longitudinal section of the rolling groove is in the shape of M.

5. The lifting mechanism according to claim 1, wherein the lifting member comprises a lifting shaft arranged in the through hole and provided with a connecting portion on at least part of the outer circumferential wall; at least part of the inner circumferential wall of the through hole of the driving member is provided with a matching portion threadedly connected with the connecting portion, so that the lifting shaft rotates relatively and moves in the first preset direction when the driving member rotates in the second preset direction; wherein the first preset direction is the axial direction of the lifting shaft, and the second preset direction is the circumferential direction of the lifting shaft.

6. The lifting mechanism according to claim 5, wherein the driving member comprises a body and an extension portion extending from the body in the axial direction of the lifting shaft; the through hole penetrates through the body and the extension portion; the matching portion is arranged on at least part of the inner circumferential wall of the through hole in the body and / or the extension portion.

7. The lifting mechanism according to claim 6, wherein the matching portion comprises internal threads arranged on at least part of the inner circumferential wall of the through hole; the connecting portion comprises external threads arranged on at least part of the outer circumferential wall of the lifting shaft arranged in the through hole; the internal threads and the external threads are matched; or the matching portion comprises a protrusion arranged on at least part of the inner circumferential wall of the through hole; the connecting portion comprises external threads arranged on at least part of the outer circumferential wall of the lifting shaft arranged in the through hole; the protrusion is movably embedded in the external threads.

8. The lift mechanism of claim 1, wherein, a sleeving member is further included; the sleeving member is sleeved on the lifting member and fixedly connected with the lifting member; the damping member is sleeved on the lifting member, fixed in the first preset direction and movably connected with the lifting member in the second preset direction; the sleeving member is located between the damping member and the driving member and abuts against the damping member.

9. The lifting mechanism according to claim 8, wherein The limiting portion is arranged on one side of the driving member facing the sleeve member, and the blocking portion is arranged on one side of the sleeve member facing the driving member, so that the limiting portion and the blocking portion abut when the lifting member moves to the first preset height.

10. A lifting mechanism according to claim 8, wherein, The light sensing assembly is further arranged to be connected with the driving system of the rotating module; The damping member or the sleeve member is provided with a light shielding portion for shielding the light sensing assembly arranged on the rotating module.

11. The lift mechanism of claim 1, wherein, The outer peripheral wall of the damping member is provided with a sliding portion, and the body of the rotating module is provided with a sliding rail corresponding to the sliding portion and a stopper; The sliding portion of the damping member is arranged to slide along the sliding rail and abut against the stopper when the lifting member reaches the second preset height.

12. The lifting mechanism according to any one of claims 1-11, wherein: The driving member comprises a driving gear arranged to be connected with the driving system of the rotating module to transmit the power output by the driving motor to the lifting member; The lifting member is provided with a mounting portion at one end close to the surface to be cleaned, and the mounting portion is arranged to connect the cleaning member of the rotating module.

13. A rotary module, characterized by The cleaning device comprises the lifting mechanism according to any one of claims 1-12. The rotating module further comprises: a body for accommodating the lifting mechanism; a cleaning member connected with the lifting member at one end close to the surface to be cleaned; a driving system in transmission connection with the driving member for transmitting power to the lifting member through the driving member.

14. A cleaning device, characterized by The cleaning device comprises the rotating module according to claim 13 and the swinging module.

15. A cleaning apparatus, characterized by The cleaning device comprises the cleaning device according to claim 14.

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