Transmission assembly, gearbox and mower

Abstract

The utility model relates to the field of agricultural tools, and discloses a transmission assembly which comprises a driving part and a rotating part which are in transmission connection. The transmission part is at least arranged on one side of the rotating part; the connecting piece is connected with the rotating piece and the transmission piece. The first limiting piece comprises a first limiting structure and a second limiting structure, the first limiting structure is connected with the rotating piece in a matched mode, and the second limiting structure is connected with the transmission piece in a matched mode; when the rotating piece rotates in the first direction, the first limiting piece is in a locked state. When the rotating piece rotates in the second direction or stops rotating, the first limiting piece forms a disengaged state; in the locking state, the relative positions of the first limiting structure and the second limiting structure are locked, and the rotating piece drives the connecting piece and the transmission piece to rotate synchronously. And in the disengagement state, the first limiting structure and the second limiting structure are disengaged relative to each other, and the rotating piece can rotate independently. According to the transmission assembly, the gearbox and the mower, the automatic clutch function is added, and a user can push and pull the transmission assembly by himself / herself conveniently.

Description

Technical Field

[0001] This application relates to the field of agricultural implements, and in particular, to a transmission component, a gearbox, and a lawn mower. Background Art

[0002] A lawn mower, also known as a weeding machine, a grass cutting machine, a lawn trimmer, etc., is a mechanical tool used for trimming lawns, vegetation, etc. It consists of a cutter head, an engine, a self-propelled system, blades, a handrail, and a control part.

[0003] In order to improve the weeding efficiency, the size and weight of existing lawn mowers have increased compared to the past. Therefore, a self-propelled system has been added to achieve the self-propelled function of the lawn mower. However, there is no automatic clutch function in the self-propelled system of existing lawn mowers. So, after the lawn mower stops, the walking wheels are still connected to the drive motor, and at this time, it is quite laborious for the user to push and pull. Summary of the Utility Model

[0004] This application mainly solves the technical problem that existing lawn mowers in the prior art do not have an automatic clutch function and are quite laborious to manually push and pull. It provides a transmission component, a gearbox, and a lawn mower that add an automatic clutch function to facilitate the user's self-pushing and pulling.

[0005] To solve the above technical problem, on the one hand, this application provides a transmission component, which is characterized in that the transmission component includes,

[0006] a rotating member and a driving member, the driving member is in transmission connection with the rotating member;

[0007] a transmission member, the transmission member is at least arranged on one side of the rotating member;

[0008] a connecting member, the connecting member is respectively connected to the rotating member and the transmission member;

[0009] a first limiting member, the first limiting member includes a first limiting structure and a second limiting structure, the first limiting structure is in mating connection with the rotating member, and the second limiting structure is in mating connection with the transmission member;

[0010] When the rotating member rotates in a first direction, the first limiting member forms a locked state; when the rotating member rotates in a second direction or stops rotating, the first limiting member forms a disengaged state, and the first direction and the second direction are two opposite rotating directions; wherein,

[0011] In the locked state, the relative positions between the first limiting structure and the second limiting structure are locked, and the rotating member drives the connecting member and the transmission member to rotate synchronously;

[0012] In the disengaged state, the relative position between the first limiting structure and the second limiting structure is disengaged, and the transmission member can rotate independently.

[0013] In an implementable embodiment, the connecting member includes

[0014] a rotating shaft, the rotating shaft is rotatably connected to the rotating member, and the rotating shaft is rotatably connected to the transmission member.

[0015] In an implementable embodiment, the first limiting structure includes

[0016] a limiting protrusion group, the limiting protrusion group includes a first limiting protrusion and a second limiting protrusion, and the first limiting protrusion and the second limiting protrusion are circumferentially spaced on the end face of the rotating member;

[0017] a first limiting groove, the first limiting groove is arranged between the first limiting protrusion and the second limiting protrusion, and the first limiting groove is formed by a first limiting surface and a second limiting surface that are circumferentially spaced; wherein,

[0018] the first limiting groove rotates around the center of the end face of the rotating member to form a locus circle, the end face of the rotating member is bounded by the locus circle, the area of the end face of the rotating member within the locus circle is the first area, and the area of the end face of the rotating member outside the locus circle is the second area;

[0019] a limiting block, the first end of the limiting block is rotatably connected to the end face of the rotating member, and under the rotation of the limiting block, the second end of the limiting block enters or exits the first area or the second area through the first limiting groove; wherein,

[0020] in the locked state, the second end of the limiting block is located within the second area;

[0021] in the disengaged state, the second end of the limiting block is located within the first area.

[0022] In an implementable embodiment, the first limiting structure further includes

[0023] a limiting cover, the limiting cover is arranged above the first limiting groove, the limiting cover forms an axial limit with the rotating shaft through a second limiting member, and the limiting cover protrudes radially with a third limiting protrusion, and the third limiting protrusion is located between the first limiting protrusion and the second limiting protrusion.

[0024] In an implementable embodiment, the limiting cover is slidably connected to the limiting block through a sliding connection device. The sliding connection device includes a sliding groove and a sliding column. The sliding groove is provided on one of the limiting cover and the limiting block, and the sliding column is provided on the other of the limiting cover and the limiting block. When the rotating member rotates synchronously with the limiting cover, the sliding column slides in the sliding groove and drives the second end of the limiting block to enter the second region through the first limiting groove.

[0025] In an implementable embodiment, the limiting block includes

[0026] a rotating part, which is rotatably connected to the end face of the rotating member. The rotation point between the rotating part and the end face of the rotating member is located in the first region;

[0027] a connecting part, the first end of which is connected to the rotating part. Both the rotating part and the connecting part are located in the first region;

[0028] a limiting part, which is connected to the second end of the connecting part. A first included angle is formed between the limiting part and the connecting part. When the limiting block rotates, the limiting part is located in the first region or the second region.

[0029] In an implementable embodiment, the sliding groove includes,

[0030] a first sliding section, which bends and extends towards the first region;

[0031] a second sliding section, which bends and extends towards the second region. The first sliding section and the second sliding section are connected in a transitional manner to form a transitional arc. Among them,

[0032] the second sliding section is composed of a first sliding arc and a second sliding arc arranged at intervals. The first sliding arc is arranged towards the second region, and the first sliding arc is arranged towards the first region.

[0033] In an implementable embodiment, the second limiting member includes,

[0034] a second limiting groove, which is located at the top of the limiting cover. The rotating shaft passes through the second limiting groove. Limiting openings are provided on both sides of the second limiting groove, and the limiting openings are communicated with the second limiting groove;

[0035] a third limiting groove, which is circumferentially arranged outside the rotating shaft. The third limiting groove is located in the second limiting groove;

[0036] An elastic clamping member, the elastic clamping member abuts against the limiting opening to form a clamping force, and the elastic clamping member is clamped in the third limiting groove. When the limiting cover rotates relative to the rotating shaft, a rotational friction is formed between the elastic clamping member and the third limiting groove.

[0037] In an implementable embodiment, the elastic clamping member includes

[0038] A first clamping member and a second clamping member, the first clamping member and the second clamping member are arranged at intervals, a first end of the first clamping member and the second clamping member are transitionally connected, a second end of the first clamping member and the second clamping member are open, and a clamping groove adapted to the third limiting groove is formed in the middle of the first clamping member and the second clamping member.

[0039] In an implementable embodiment, the transmission assembly further includes a reset structure, and the reset structure includes

[0040] Ribs, the ribs are radially arranged on the end face of the rotating member, the ribs are located on one side of the first limiting groove, and the ribs are located between the first limiting protrusion and the second limiting protrusion;

[0041] A top block, a first end of the top block is connected to the bottom of the limiting cover, a second end of the top block extends towards the end face of the rotating member and is spaced from the end face of the rotating member;

[0042] An elastic member, a first end of the elastic member abuts against the rib, and a second end of the elastic member abuts against the top block; wherein

[0043] When the rotating member rotates or stops rotating along the second direction, the elastic member drives the limiting block to rotate along the second direction, and the limiting block completely enters the first region.

[0044] In an implementable embodiment, the second limiting structure includes

[0045] A fourth limiting protrusion, the transmission member is located on the top of the limiting cover, a first end of the fourth limiting protrusion is connected to the transmission member, a second end of the fourth limiting protrusion extends towards the end face of the rotating member, and the second end of the fourth limiting protrusion is spaced from the end face of the rotating member. The fourth limiting protrusion has a third limiting surface. In the locked state, a limiting cavity is formed between the first limiting surface and the third limiting surface, the limiting portion is located in the limiting cavity, and the limiting portion abuts against the first limiting surface or the second limiting surface and the third limiting surface respectively to realize synchronous rotation between the rotating member and the transmission member.

[0046] On the other hand, the present application provides a transmission, characterized by including the transmission component in Embodiment 1, and further including,

[0047] an output member, the output member is in transmission connection with the rotating member through the transmission member;

[0048] a transmission housing, the transmission component is located inside the transmission housing.

[0049] On yet another aspect, the present application provides a lawn mower, characterized by including the transmission in Embodiment 2.

[0050] Compared with the prior art, when the rotating member rotates in the first direction, the first limiting member forms a locked state, and the rotating member drives the connecting member and the transmission member to rotate synchronously. When the rotating member rotates in the second direction or stops rotating, the first limiting member forms a disengaged state, and at this time the transmission member can rotate independently. Thus, the clutch between the transmission member and the rotating member can be realized according to the difference in the operating mode of the rotating member.

[0051] Therefore, the present application has the characteristics of reasonable structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Att Figure 1 is a schematic structural view of the transmission component of the present application;

[0053] Att Figure 2 is a schematic structural view of the rotating member of the present application;

[0054] Att Figure 3 is a left view of the rotating member of the present application;

[0055] Att Figure 4 is a schematic structural view of the limiting cover of the present application;

[0056] Att Figure 5 is a right view of the limiting cover of the present application;

[0057] Att Figure 6 is a schematic structural view of the elastic clamping member of the present application;

[0058] Att Figure 7 is a schematic structural view between the rotating shaft, the limiting cover and the second limiting member of the present application;

[0059] Att Figure 8 is another schematic structural view of the limiting cover of the present application;

[0060] Att Figure 9 is a left view of the limiting cover of the present application;

[0061] Att Figure 10 is a schematic structural view of the limiting block of the present application;

[0062] Appendix Figure 11 is a left view of the limit block of the present application;

[0063] Appendix Figure 12 is a schematic structural view of a transmission member of the present application;

[0064] Appendix Figure 13 is a schematic structural view of a transmission assembly of the present application in a disengaged state;

[0065] Appendix Figure 14 is a schematic structural view of a transmission assembly of the present application in a locked state;

[0066] Appendix Figure 15 is a schematic structural view of a gearbox of the present application.

[0067] Description of reference numerals in the figure:

[0068] 10. Transmission assembly;

[0069] 100. Rotating member; 110. First region; 111. Rotation point; 120. Second region;

[0070] 200. Transmission member; 210. Transmission cavity;

[0071] 300. Connecting member; 310. Rotating bearing; 320. Rotating shaft;

[0072] 400. First limiting structure; 410. Limiting projection group; 411. First limiting projection; 412. Second limiting projection; 420. First limiting groove; 421. First limiting surface; 422. Second limiting surface; 430. Limit block; 431. Rotating part; 432. Connecting part; 433. Limiting part; 440. Limit cover; 441. Third limiting projection; 442. Rotating hole; 450. Sliding connection device; 451. Sliding groove; 451-1. First sliding section; 451-2 Second sliding section; 451-21. First sliding arc; 451-22. Second sliding arc; 452. Sliding column;

[0073] 500. Second limiting structure; 510. Fourth limiting projection; 511. Third limiting surface;

[0074] 600. Second limiting member; 610. Second limiting groove; 620. Limiting opening; 630. Third limiting groove; 640. Elastic clamping member; 641. First clamping member; 642. Second clamping member; 643. Clamping groove;

[0075] 700. Reset structure; 710. Elastic member; 720. Rib; 730. Top block;

[0076] 20. Driving member;

[0077] 30. Output component;

[0078] 40. Transmission housing; 41. Left housing; 42. Right housing. Detailed implementation

[0079] To make the objectives, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0080] In the prior art, there is a technical problem that the existing lawn mower does not have an automatic clutch function and is relatively laborious when manually pushed and pulled.

[0081] For this reason, on the one hand, the present application provides a transmission assembly, characterized in that the transmission assembly includes,

[0082] A rotating member and a driving member, the driving member is in transmission connection with the rotating member;

[0083] A transmission member, the transmission member is at least arranged on one side of the rotating member;

[0084] A connecting member, the connecting member is respectively connected to the rotating member and the transmission member;

[0085] A first limiting member, the first limiting member includes a first limiting structure and a second limiting structure, the first limiting structure is in cooperation connection with the rotating member, and the second limiting structure is in cooperation connection with the transmission member;

[0086] When the rotating member rotates in the first direction, the first limiting member forms a locked state; when the rotating member rotates in the second direction or stops rotating, the first limiting member forms a disengaged state, and the first direction and the second direction are two opposite rotating directions; wherein,

[0087] In the locked state, the relative positions between the first limiting structure and the second limiting structure are locked, and the rotating member drives the connecting member and the transmission member to rotate synchronously;

[0088] In the disengaged state, the relative positions between the first limiting structure and the second limiting structure are disengaged, and the transmission member can rotate independently.

[0089] On the other hand, the present application provides a transmission, characterized in that it includes the transmission assembly of Embodiment 1, and further includes,

[0090] An output component, the output component is in transmission connection with the rotating member through the transmission member;

[0091] The transmission housing, and the transmission assembly is located within the transmission housing.

[0092] On another aspect of the present application, a lawn mower is provided, which is characterized by including the transmission of Embodiment 2.

[0093] Embodiment 1:

[0094] Please refer to Atta Figure 1 to Atta Figure 14 As shown, a specific embodiment of the transmission assembly 10 of the present application is presented. The transmission assembly 10 of the present application is used for transmitting mechanical kinetic energy, and the transmission assembly 10 of the present application is applied to agricultural implements. In one embodiment, the transmission assembly 10 of the present application is applied to a lawn mower.

[0095] Atta Figure 1 is a schematic structural diagram of the transmission assembly of the present application. Please refer to Atta Figure 1 As shown, the transmission assembly 10 includes a rotating member 100 and a transmission member 200. In the present application, the rotating member 100 is driven by a driving member. The transmission member 200 is disposed at least on one side of the rotating member 100. In the present application, one side of the rotating member 100 is the end face of the rotating member 100. Further, the transmission member 200 can be disposed on one side of the rotating member 100 or transmission members 200 are disposed on both sides of the rotating member 100. The rotating member 100 and the transmission member 200 are rotatably connected. Further, the driving connection mode between the rotating member 100 and the driving member is belt pulley transmission or gear meshing transmission. When the rotating member 100 and the driving member are in belt pulley transmission, a rotating belt is sleeved between the rotating member 100 and the driving member, and the driving member drives the rotating member 100 to rotate. When the rotating member 100 and the driving member are in gear meshing transmission, the driving member is a driving gear and the rotating member 100 is a driven gear, and the driving member drives the rotating member 100 to rotate.

[0096] In one embodiment, transmission members 200 are disposed on both sides of the rotating member 100.

[0097] In one embodiment, the rotating member 100 and the driving member are in gear meshing transmission.

[0098] Please refer to Atta Figure 1As shown, the transmission assembly 10 of the present application further includes a connecting member 300, and the connecting member 300 is respectively connected to the rotating member 100 and the transmission member 200. Further, the connecting member 300 is rotatably connected to the rotating member 100. Under the influence of the first limiting member, the rotating member 100 can rotate around the connecting member 300, or the rotating member 100 can be synchronously connected to the connecting member 300. The connecting member 300 is fixedly connected to the transmission member 200. When the connecting member 300 rotates, the transmission member 200 will surely rotate synchronously with the connecting member 300. Therefore, in the present application, the connecting member 300 is a transmission structure that transmits the power of the rotating member 100 to the transmission member 200.

[0099] In one embodiment, the connecting member 300 includes a rotating shaft 320. The rotating shaft 320 sequentially penetrates through the rotating member 100 and the transmission member 200. Further, the rotating shaft 320 is rotatably connected to the rotating member 100 and the transmission member 200 through a rotating bearing 310 or a bushing.

[0100] In one embodiment, the rotating shaft 320 is rotatably connected to the rotating member 100 and the transmission member 200 through a rotating bearing 310. The outer ring of the rotating bearing 310 is fixedly connected to the rotating member 100, and the inner ring of the rotating bearing 310 is fixedly connected to the rotating shaft 320. Therefore, the rotating member 100 can rotate around the rotating shaft 320.

[0101] Please refer to the attached Figure 1 As shown, the transmission assembly 10 of the present application further includes a first limiting member, and the first limiting member is used to realize the engagement and disengagement between the rotating member 100 and the transmission member 200. Further, the first limiting member includes a first limiting structure 400 and a second limiting structure 500. The first limiting structure 400 is cooperatively connected to the rotating member 100, and the second limiting structure 500 is cooperatively connected to the transmission member 200.

[0102] In the present application, the motion modes of the rotating member 100 are divided into rotating in the first direction, rotating in the second direction, and stopping rotating. The first direction and the second direction are two opposite rotating directions. Since the rotation center of the rotating member 100 is the axis of the rotating member 100, the first direction is one of clockwise or counterclockwise, and the second direction is the other of clockwise or counterclockwise.

[0103] Further, when the rotating member 100 rotates in the first direction, the first limiting member forms a locked state. In the locked state, the relative positions between the first limiting structure 400 and the second limiting structure 500 are locked, and the rotating member 100 drives the connecting member 300 and the transmission member 200 to rotate synchronously when rotating.

[0104] When the rotating member 100 rotates in the second direction or stops rotating, the first limiting member forms a disengaged state. In the disengaged state, the relative positions between the first limiting structure 400 and the second limiting structure 500 are disengaged, and the transmission member 200 can rotate independently.

[0105] Among them, the first limiting structure 400 includes a limiting protrusion group 410, a first limiting groove 420, a limiting block 430 and a limiting cover 440. The limiting protrusion group 410 is arranged on the rotating member 100, and the second limiting structure 500 is arranged on the transmission member 200. An axial limit is formed between the rotating shaft 320 and the limiting cover 440 through the second limiting member 600. At the same time, the limiting cover 440 covers the rotating member 100. The rotation of the limiting block 430 can be realized by the relative rotation between the limiting cover 440 and the rotating member 100. Under the action of the limiting block 430, the rotating member 100 and the transmission member 200 can form a locked state or a disengaged state. The relative relationship between the first limiting structure 400 and the second limiting structure 500 will be described in detail in the subsequent drawings. Attached Figure 1 The second limiting member 600 shown in the attached drawings is not the overall structure of the second limiting member. The overall structure of the second limiting member will be described in detail in the subsequent drawings.

[0106] Please refer to the attached Figure 1 As shown in the attached drawings, the transmission assembly 10 of the present application further includes a reset structure 700, among which Figure 1 the reset structure 700 shown in the attached drawings is not the overall structure of the reset structure. The overall structure of the reset structure 700 will be described in detail in the subsequent drawings. Under the action of the reset structure 700, if the rotating member 100 rotates in the second direction or stops rotating, the first limiting member can be switched from the locked state to the disengaged state.

[0107] Attached Figure 2 is a schematic structural diagram of the rotating member of the present application. Attached Figure 3 is a left view of the rotating member of the present application. Please refer to the attached Figure 2 and the attached Figure 3 As shown in the attached drawings, the rotating member 100 of the present application is a rotating gear. Rotating teeth are arranged on the circumferential direction of the rotating member 100. The end faces on both the left and right sides of the rotating member 100 are recessed inward to form accommodation cavities. The limiting protrusion group 410, the first limiting groove 420, the rotation point 111 and the rib 720 can be arranged in the accommodation cavities. Whether the limiting protrusion group 410, the first limiting groove 420, the rotation point 111 and the rib 720 are arranged in the accommodation cavities depends on whether a transmission member is arranged on one side of the end face of the rotating member 100, that is, the above-mentioned limiting protrusion group 410, the first limiting groove 420, the rotation point 111 and the rib 720 should be arranged corresponding to the transmission member.

[0108] In one embodiment, the cross-section of the accommodation cavity is a circular structure.

[0109] In one embodiment, the limiting protrusion group 410, the first limiting groove 420, the rotation point 111 and the rib 720 are arranged on both end faces of the rotating member 100.

[0110] Among them, the limiting projection group 410 and the first limiting groove 420 are both part of the first limiting structure 400. The limiting projection group 410 includes a first limiting projection 411 and a second limiting projection 412, and the first limiting projection 411 and the second limiting projection 412 are circumferentially spaced in the accommodation cavity on the end face of the rotating member 100. The first limiting groove 420 is arranged between the first limiting projection 411 and the second limiting projection 412, and the first limiting groove 420 is formed by a first limiting surface 421 and a second limiting surface 422 which are circumferentially spaced.

[0111] The first limiting groove 420 rotates around the center of the end face of the rotating member 100 to form a locus circle. The end face of the rotating member 100 is bounded by the locus circle. The area of the end face of the rotating member 100 within the locus circle is the first area 110, and the area of the end face of the rotating member 100 outside the locus circle is the second area 120. The first limiting projection 411, the second limiting projection 412, the first limiting surface 421 and the second limiting surface 422 are all located on the rotation locus.

[0112] In one embodiment, the center of the end face of the rotating member 100 is the axis of the rotating member 100.

[0113] In one embodiment, one or two sets of the limiting projection group 410, the first limiting groove 420, the rotation point 111 and the rib 720 are provided.

[0114] Please refer to the attached Figure 2 As shown, in the present application, two arc-shaped projections are arranged in the accommodation cavity on the end face of the rotating member 100. The two arc-shaped projections coincide with the locus circle. The first ends of the two arc-shaped projections are spaced to form a first limiting groove 420, and the second ends of the two arc-shaped projections are also spaced to form a first limiting groove 420. The first limiting surface 421 and the second limiting surface 422 are also both formed by the end faces of the arc-shaped projections.

[0115] Of course, the first limiting groove 420 can also be formed in other ways. For example, the first limiting groove 420 and the second limiting groove 610 are both composed of an arc-shaped projection group. The arc-shaped projection group includes a first arc-shaped projection and a second arc-shaped projection which are spaced. A first limiting groove 420 is formed between the first arc-shaped projection and the second arc-shaped projection. The first limiting surface 421 is the end face of the first arc-shaped projection, and the second limiting surface 422 is the end face of the second arc-shaped projection. The first arc-shaped projection and the second arc-shaped projection coincide with the locus circle.

[0116] Please refer to the attached Figure 2 As shown, in the present application, the first ends of the first limiting projection 411 and the second limiting projection 412 are both connected to the arc-shaped projection. The first limiting projection 411 and the second limiting projection 412 both extend outward. The first limiting projection 411 and the second limiting projection 412 both coincide with the locus circle.

[0117] Of course, in the case of no arc-shaped protrusion, the second ends of the first limiting protrusion 411 and the second limiting protrusion 412 can also be directly connected to the accommodating cavity on the end face of the rotating member 100.

[0118] Please refer to the appendix Figure 2 As shown, the rotation point 111 of the present application is located within the first region 110. The rotation point 111 of the present application is a rotating column. The first end of the rotating column is connected to the accommodating cavity on the end face of the rotating member 100, and the second end of the rotating column extends outward.

[0119] In one embodiment, the rotation point 111 is arranged close to the first limiting protrusion 411 or the second limiting protrusion 412, and the rotation point 111 is arranged far away from the first limiting groove 420.

[0120] Please refer to the appendix Figure 2 As shown, the rib 720 of the present application is radially arranged in the accommodating cavity on the end face of the rotating member 100. The rib 720 is located on one side of the first limiting groove 420 and between the first limiting protrusion 411 and the second limiting protrusion 412.

[0121] In one embodiment, the first end of the rib 720 is arranged close to the rotation axis of the end face of the rotating member 100, the second end of the rib 720 is connected to the arc-shaped protrusion, and the rib 720 is a long strip structure.

[0122] Appendix Figure 4 is a schematic structural view of the limiting cover of the present application. Appendix Figure 5 is a right view of the limiting cover of the present application. Please refer to the appendix Figure 4 and appendix Figure 5 As shown, the specific structure of the side of the limiting cover 440 close to the transmission member 200 is shown. During specific installation, the limiting cover 440 is arranged above the first limiting groove 420.

[0123] Please refer to the appendix Figure 4 and appendix Figure 5 As shown, the setting of the limiting cover 440 is used to realize the rotation of the limiting block 430, and the specific rotation mode of the limiting block 430 will be further described in the subsequent drawings. The circumferential outer surface of the limiting cover 440 is an arc-shaped structure, and the limiting cover 440 is provided with a third limiting protrusion 441 protruding along the radial direction. During specific use, the third limiting protrusion 441 rotates between the first limiting protrusion and the second limiting protrusion.

[0124] Please refer to the appendix Figure 4 and appendix Figure 5As shown, the upper surface of the limit cover 440 is provided with a second limit groove 610 and a limit opening 620 at the same time. The second limit groove 610 and the limit opening 620 are part of the second limiting member 600. The second limit groove 610 is arranged at the center position of the limit cover 440. Limit openings 620 are arranged on both sides of the second limit groove 610. The limit openings 620 are established along the radial position of the accommodation cavity. The two limit openings 620 are located on the same horizontal plane, and the second limit groove 710 communicates with the limit opening 720.

[0125] In one embodiment, the cross-section of the second limit groove 610 is a circular structure.

[0126] Attached Figure 6 is a schematic structural diagram of an elastic clamping member of the present application. Please refer to the attached Figure 6 As shown, the specific structure of the elastic clamping member 640 is shown.

[0127] In the present application, the elastic clamping member 640 includes a first clamping member 641 and a second clamping member 642. The first clamping member 641 and the second clamping member 642 are arranged at intervals. The first ends of the first clamping member 641 and the second clamping member 642 are connected in a transitional manner. The second ends of the first clamping member 641 and the second clamping member 642 are open. A clamping groove 643 adapted to the third limit groove is formed in the middle of the first clamping member 641 and the second clamping member 642.

[0128] In one embodiment, the first clamping member 641 and the second clamping member 642 are arranged in parallel.

[0129] Attached Figure 7 is a schematic structural diagram between the rotating shaft, the limit cover and the second limiting member of the present application. Please refer to the attached Figure 7 As shown, an axial limit is formed between the rotating shaft 320 of the present application and the limit cover 440 through the second limiting member 600.

[0130] Please refer to the attached Figure 7As shown in the figure, a third limiting groove 630 is circumferentially arranged on the outer surface of the rotating shaft 320 of the present application. During specific operation, the first clamping member and the second clamping member of the elastic clamping member 640 are arranged within the limiting opening. The two side walls of the limiting opening respectively abut against the first clamping member and the second clamping member to form the clamping force of the elastic clamping member 640, and the clamping groove 643 of the elastic clamping member 640 is restricted within the second limiting groove 610. Moreover, the clamping groove 643 of the elastic clamping member 640 is clamped with the third limiting groove 630, thereby forming the axial limit of the limiting cover 440. However, the limiting cover 440 can still rotate around the rotating shaft 320. When the limiting cover 440 rotates around the rotating shaft 320, friction is formed between the elastic clamping member 640 and the third limiting groove 630. At the same time, the elastic clamping member 640 gives a downward pre-tightening force to the limiting cover 440 to prevent the limiting cover 440 from generating axial runout. Further, the limiting cover 440 is arranged between the rotating member and the transmission member, which can further prevent the limiting cover 440 from forming axial runout.

[0131] Attached Figure 8 is another structural schematic diagram of the limiting cover of the present application. Attached Figure 9 is a left view of the limiting cover of the present application. Please refer to the attached Figure 8 and the attached Figure 9 As shown, the specific structure of the side of the limiting cover 440 close to the rotating member is presented. During specific installation, the limiting cover 440 is arranged above the first limiting groove.

[0132] Please refer to the attached Figure 8 and the attached Figure 9 As shown, the setting of the limiting cover 440 is used to realize the rotation of the limiting block, and the specific rotation mode of the limiting block will be further described in the subsequent attached drawings. The circumferential outer surface of the limiting cover 440 is an arc-shaped structure, and the limiting cover 440 is provided with a third limiting protrusion 441 protruding along the radial direction. During specific use, the third limiting protrusion 441 rotates between the first limiting protrusion and the second limiting protrusion.

[0133] Please refer to the attached Figure 8 and the attached Figure 9 As shown, a sliding groove 451 is arranged on the lower surface of the limiting cover 440. The sliding groove 451 is formed by extending upward from the lower surface of the limiting cover 440. The sliding groove 451 is a part of the sliding connection device, and the sliding connection between the limiting cover and the limiting block can be realized through the sliding connection device.

[0134] In one embodiment, the sliding groove 451 includes a first sliding section 451-1 and a second sliding section 451-2. The first sliding section 451-1 is bent towards the first region 110, and the second sliding section 451-2 is bent towards the second region 120. In this application, both the first sliding section 451-1 and the second sliding section 451-2 are arc-shaped structures. Further, the center of the first sliding section 451-1 coincides with the center of the rotation hole 442. The first end of the second sliding section 451-2 is connected to the first sliding section 451-1, and the second end of the second sliding section 451-2 intersects with the boundary of the limit cover 440. The first sliding section 451-1 and the second sliding section 451-2 are connected in a transitional manner to form a transitional arc, so as to facilitate the sliding of the sliding column 452 in the sliding groove 451.

[0135] Wherein, the second sliding section 451-2 is composed of a first sliding arc 451-21 and a second sliding arc 451-22 arranged at intervals. The first sliding arc 451-21 faces the second region 120, and the first sliding arc 451-21 faces away from the second region 120.

[0136] Please refer to the attached Figure 8 and the attached Figure 9 As shown, a top block 730 is further provided on the lower surface of the limit cover 440 of this application. The top block 730 extends downward from the lower surface of the limit cover 440, and the top block 730 is a part of the reset structure 700. The first end of the top block 730 is connected to the bottom of the limit cover 440. During installation, the second end of the top block 730 extends towards the end face of the rotating part and is arranged at an interval from the end face of the rotating part.

[0137] Please refer to the attached Figure 8 and the attached Figure 9 As shown, a rotation hole 442 is also provided through the center of the limit cover 440 of this application. The limit cover 440 is rotationally connected to the rotating shaft through the rotation hole 442.

[0138] The attached Figure 10 is a schematic structural view of the limit block of this application. The attached Figure 11 is a left view of the limit block of this application. Please refer to the attached Figure 10 and the attached Figure 11 As shown, the limit block 430 of this application is presented. The limit block 430 is a part of the first limit structure.

[0139] Please refer to the attached Figure 10 and the attached Figure 11 As shown, the limit block 430 of this application includes a rotating part 431. The rotating part 431 is rotationally connected to the end face of the rotating part 100. Further, the rotating part 431 is rotationally connected to the rotating part 100 through a rotation point.

[0140] The limit block 430 of the present application further includes a connecting portion 432 and a limiting portion 433. The first end of the connecting portion 432 is connected to the rotating portion 431, the second end of the connecting portion 432 is connected to the limiting portion 433, and a first included angle is formed between the limiting portion 433 and the rotating portion 431 to facilitate the corresponding limiting of the limiting portion 433.

[0141] Please refer to the attached Figure 10 and the attached Figure 11 As shown, a sliding column 452 is further provided on the limiting portion 433 of the limit block 430 of the present application. The first end of the sliding column 452 is connected to the upper surface of the limiting portion, and the second end of the sliding column 452 extends upward.

[0142] The attached Figure 12 is a schematic structural diagram of a transmission member of the present application. Please refer to the attached Figure 12 As shown, a transmission cavity 210 is provided on the side of the transmission member of the present application facing the rotating member. The transmission cavity 210 is formed by extending upward from the bottom surface of the transmission member 200. A fourth limiting protrusion 510 is provided in the transmission cavity. The fourth limiting protrusion 510 is a second limiting structure. The first end of the fourth limiting protrusion 510 is connected to the transmission member 200, the second end of the fourth limiting protrusion 510 extends toward the end surface of the rotating member, and the second end of the fourth limiting protrusion 510 is spaced from the end surface of the rotating member 100. The fourth limiting protrusion 510 has a third limiting surface 511.

[0143] The attached Figure 13 is a schematic structural diagram of the transmission assembly of the present application in the disengaged state. The attached Figure 14 is a schematic structural diagram of the transmission assembly of the present application in the locked state. Please refer to the attached Figure 13 and the attached Figure 14 The attached Figure 13 and the attached Figure 14 are used to illustrate the installation structure and specific working process of the transmission assembly 10.

[0144] Among them, the installation relationship of each component in the transmission assembly 10 is as follows. The first end of the limit block 430 is rotatably connected to the end surface of the rotating member 100, that is, the rotating portion of the limit block 430 is rotatably connected to the end surface of the rotating member 100, and the rotation point between the rotating portion and the end surface of the rotating member is located in the first region. Under the rotation of the limit block 430, the second end of the limit block 430 enters or exits the first region or the second region through the first limit groove 420, that is, the limiting portion 433 of the rotating member 100 can enter or exit the first region or the second region through the first limit groove 420. In the locked state, the second end of the limit block 430, that is, the limiting portion, is located in the second region. In the disengaged state, the second end of the limit block 430, that is, the limiting portion, is located in the first region. Whether in the locked state or the disengaged state, the rotating portion and the connecting portion of the limit block 430 are both located in the first region.

[0145] Further, the limiting cover is closed on the end face of the rotating member (the limiting cover 440 is not shown in the attached Figure 13 and the attached Figure 14 figure). The limiting cover is located above the first limiting groove 420, and the limiting cover can form an axial limit with the rotating shaft through the second limiting member. When the limiting cover rotates, the third limiting protrusion rotates between the first limiting protrusion and the second limiting protrusion.

[0146] Further, the limiting cover is slidably connected to the limiting block through a sliding connection device. The sliding connection device includes a sliding groove and a sliding column. The sliding groove is arranged on the limiting cover, and the sliding column is arranged on the limiting block. When the rotating member and the limiting cover rotate synchronously, the sliding column slides in the sliding groove and drives the second end of the limiting block to enter the second area through the first limiting groove.

[0147] Further, the reset structure 700 further includes an elastic member 710. The first end of the elastic member 710 abuts against the rib 720, and the second end of the elastic member 710 abuts against the top block 730. When the rotating member 100 rotates along the second direction or stops rotating, the elastic member 710 drives the limiting block 430 to rotate along the second direction, and the limiting block 430 enters the first area 110.

[0148] Further, the transmission member is located on the top of the limiting cover. The transmission member and the rotating member 100 act together to clamp the limiting cover therein. In the locked state, a limiting cavity is formed between the first limiting surface or the second limiting surface and the third limiting surface. The limiting portion is located in the limiting cavity, and the limiting portion abuts against the first limiting surface and the second limiting surface respectively to realize the synchronous rotation of the rotating member and the transmission member.

[0149] Please refer to the attached Figure 13 and the attached Figure 14 figure. As shown, the working process of the transmission assembly 10 will be further described below. The working process is described in two parts. The first part is the formation of the locked state of the transmission assembly 10, and the second part is the formation of the disengaged state of the transmission assembly 10.

[0150] Please refer to the attached Figure 14As shown, the rotating member 100 rotates in the first direction, simultaneously driving the first limiting protrusion 411 and the second limiting protrusion 412 to rotate in the first direction until the first limiting protrusion 411 abuts against the third limiting protrusion. At this time, when the rotating member 100 continues to rotate, since the first limiting protrusion 411 abuts against the third limiting protrusion, the limiting cover rotates synchronously with the rotating member 100. Under the rotation of the rotating member 100, the sliding groove rotates synchronously with the limiting cover, and the second sliding arc of the limiting groove presses against the sliding column. Therefore, under the rotation of the limiting cover, the second sliding arc presses the sliding column towards the second region. At the same time, since the limiting block 430 is rotatably connected to the rotating member 100, the limiting portion of the limiting block 430 rotates from the first region to the second region. When the rotating member 100 rotates further, the limiting portion of the limiting block 430 abuts against the fourth limiting protrusion 510. The fourth limiting protrusion 510 and the first limiting surface or the second limiting surface jointly form a limiting cavity, and the limiting portion of the limiting block 430 is located within the limiting cavity. Therefore, when the rotating member 100 continues to rotate, the first limiting surface or the second limiting surface abuts against the limiting portion, and the limiting portion abuts against the fourth limiting protrusion 510, thereby forming a lock on the positions between the rotating member 100 and the transmission member 200, and the rotating member 100 and the transmission member 200 rotate synchronously. And when the rotating member 100 rotates in the first direction, the elastic member 710 is compressed to store energy

[0151] Please refer to the appendix Figure 13 As shown, when the rotating member 100 stops rotating, the compression force formed by the elastic member 710 drives the limiting disk to rotate in the second direction. Under the rotation of the limiting cover 440, the sliding groove rotates synchronously with the limiting cover, and the first sliding arc of the sliding groove presses against the sliding column. Therefore, under the rotation of the limiting cover 440, the first sliding arc presses the sliding column towards the first region. At the same time, the limiting block 430 is rotatably connected to the rotating member 100. Since the limiting portion of the limiting block 430 rotates from the second region 120 to the first region 110, there is no corresponding structure to limit the transmission member 200 within the second region 120 at this time, and the transmission member 200 can rotate independently

[0152] Embodiment 2:

[0153] Appendix Figure 15 is a schematic structural diagram of a transmission of the present application. Please refer to the appendix Figure 15 As shown, the transmission of the present application includes the transmission assembly 10 in Embodiment 1

[0154] Please refer to the appendix Figure 15 As shown, the transmission of the present application further includes a driving member 20. The driving member 20 is in transmission connection with the rotating member 100. Under the drive of the driving member 20, the rotating member 100 rotates in the first direction or the second direction

[0155] In one embodiment, the driving member 20 is a driving motor

[0156] Please refer to the attached Figure 15 As shown, the transmission of the present application further includes an output member 30, and the output member 30 is connected to the rotating member 100 through a transmission member 200 to achieve power transmission.

[0157] Please refer to the attached Figure 15 As shown, the transmission of the present application further includes a transmission housing 40, and the transmission assembly 10 is located inside the transmission housing 40.

[0158] In one embodiment, the transmission housing 40 includes a left housing 41 and a right housing 42.

[0159] In the present application, the output member 30 is connected to a walking wheel. When the transmission assembly 10 is in a locked state, the output member 30 can rotate synchronously with the rotating member 100 to achieve automatic walking of the walking wheel. When the transmission assembly 10 is in a disengaged state, the output member 30 can rotate independently, and then the walking wheel can achieve manual walking.

[0160] Embodiment 3:

[0161] The present application discloses a lawn mower, including the transmission in Embodiment 2.

[0162] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0163] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0164] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claimed rights.

Claims

1. A transmission assembly, characterized in that: The transmission assembly comprises: A rotating member and a driving member, wherein the driving member is drivingly connected to the rotating member; A transmission member, wherein the transmission member is arranged at least on one side of the rotating member; A connecting member, wherein the connecting member is connected to the rotating member and the transmission member respectively; A first limiting member, the first limiting member comprising a first limiting structure and a second limiting structure, the first limiting structure is cooperatively connected with the rotating member, and the second limiting structure is cooperatively connected with the transmission member; When the rotating member rotates in the first direction, the first limit member forms a locked state; when the rotating member rotates in the second direction or stops rotating, the first limit member forms a disengaged state, and the first direction and the second direction are two opposite rotation directions; wherein, In the locked state, the relative positions between the first limiting structure and the second limiting structure are locked, and the rotating member drives the connecting member and the transmission member to rotate synchronously; In the disengaged state, the relative positions of the first limiting structure and the second limiting structure are disengaged, and the transmission member can rotate independently.

2. The transmission assembly according to claim 1, characterized in that: The connecting piece comprises: A rotating shaft is rotatably connected to the rotating member, and the rotating shaft is rotatably connected to the transmission member.

3. The transmission assembly according to claim 2, characterized in that: The first limiting structure includes: A limiting protrusion group, the limiting protrusion group includes a first limiting protrusion and a second limiting protrusion, the first limiting protrusion and the second limiting protrusion are circumferentially spaced and arranged on the end surface of the rotating member; A first limiting groove, wherein the first limiting groove is arranged between the first limiting protrusion and the second limiting protrusion, and the first limiting groove is formed by a first limiting surface and a second limiting surface arranged at intervals in the circumferential direction; wherein The first limiting groove rotates around the end surface center of the rotating member to form a trajectory circle, the end surface of the rotating member is bounded by the trajectory circle, the end surface area of ​​the rotating member within the trajectory circle is the first area, and the end surface area of ​​the rotating member outside the trajectory circle is the second area; A limit block, wherein the first end of the limit block is rotatably connected to the end surface of the rotating member, and under the rotation of the limit block, the second end of the limit block enters and exits the first area or the second area through the first limit groove; wherein, In the locked state, the second end of the limit block is located in the second area; In the disengaged state, the second end of the limiting block is located in the first area.

4. The transmission assembly according to claim 3, characterized in that: The first limiting structure also includes: The limit cover is arranged above the first limit groove, the limit cover forms an axial limit with the rotating shaft through the second limit piece, and the limit cover is provided with a third limit protrusion protruding radially, and the third limit protrusion is located between the first limit protrusion and the second limit protrusion.

5. The transmission assembly according to claim 4, characterized in that: The limit cover is slidably connected to the limit block via a sliding connection device, the sliding connection device comprises a sliding groove and a sliding column, the sliding groove is arranged in one of the limit cover and the limit block, and the sliding column is arranged in the other of the limit cover and the limit block; wherein, when the rotating member rotates synchronously with the limit cover, the sliding column slides in the sliding groove and drives the second end of the limit block to enter the second area through the first limit groove.

6. The transmission assembly according to claim 5, characterized in that: The limiting block comprises a rotating portion, the rotating portion being rotatably connected to an end surface of the rotating member, and a rotation point between the rotating portion and the end surface of the rotating member being located in the first region; a connecting portion, a first end of which is connected to the rotating portion, and both the rotating portion and the connecting portion are located in the first area; A limiting portion, wherein the limiting portion is connected to the second end of the connecting portion, a first angle is formed between the limiting portion and the connecting portion, and when the limiting block rotates, the limiting portion is located in the first area or the second area.

7. The transmission assembly according to claim 5, characterized in that: The sliding groove comprises: a first sliding section, wherein the first sliding section is bent and extends toward the first area; The second sliding section is bent and extended toward the second area, and the first sliding section is transitionally connected with the second sliding section to form a transition arc; wherein, The second sliding section is composed of a first sliding arc and a second sliding arc which are arranged at an interval, the first sliding arc is arranged toward the second area, and the second sliding arc is arranged toward the first area.

8. The transmission assembly according to claim 4, characterized in that: The second limiting member includes: A second limiting groove, wherein the second limiting groove is located at the top of the limiting cover, the rotating shaft passes through the second limiting groove, and limiting openings are arranged on both sides of the second limiting groove, and the limiting openings are communicated with the second limiting groove; a third limiting groove, the third limiting groove being circumferentially arranged outside the rotating shaft and being located inside the second limiting groove; An elastic clamping member is abutted against the limiting opening to form a clamping force, and the elastic clamping member is clamped in the third limiting groove. When the limiting cover rotates relative to the rotating shaft, rotational friction is formed between the elastic clamping member and the third limiting groove.

9. The transmission assembly according to claim 8, characterized in that: The elastic clamping member comprises: A first clamping member and a second clamping member, wherein the first clamping member and the second clamping member are spaced apart from each other, the first ends of the first clamping member and the second clamping member are transitionally connected, the second ends of the first clamping member and the second clamping member are openly arranged, and a clamping groove adapted to the third limiting groove is formed in the middle of the first clamping member and the second clamping member.

10. The transmission assembly according to claim 4, characterized in that: The transmission assembly also includes a reset structure, which includes: A rib, wherein the rib is radially arranged on an end surface of the rotating member, the rib is located at one side of the first limiting groove, and the rib is located between the first limiting protrusion and the second limiting protrusion; A top block, wherein a first end of the top block is connected to the bottom of the limit cover, and a second end of the top block extends toward an end surface of the rotating member and is spaced apart from the end surface of the rotating member; An elastic member, wherein the first end of the elastic member abuts against the rib, and the second end of the elastic member abuts against the top block; wherein, When the rotating member rotates or stops rotating along the second direction, the elastic member drives the limiting block to rotate along the second direction, and the limiting block completely enters the first area.

11. The transmission assembly according to claim 6, characterized in that: The second limiting structure includes: A fourth limiting protrusion, the transmission member is located at the top of the limiting cover, the first end of the fourth limiting protrusion is connected to the transmission member, the second end of the fourth limiting protrusion extends toward the end surface of the rotating member, and the second end of the fourth limiting protrusion is spaced apart from the end surface of the rotating member, the fourth limiting protrusion has a third limiting surface, in the locked state, a limiting cavity is formed between the first limiting surface or the second limiting surface and the third limiting surface, the limiting portion is located in the limiting cavity, and the limiting portion is respectively abutted against the first limiting surface and the third limiting surface to achieve synchronous rotation between the rotating member and the transmission member.

12. A gearbox, characterized in that: A transmission assembly comprising any one of claims 1 to 11, further comprising: an output member, the output member being transmission-connected to the rotating member through the transmission member; A gearbox housing, wherein the transmission assembly is located in the gearbox housing.

13. A lawn mower, characterized in that: Including the gearbox as claimed in claim 12.

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