Transmission assembly, gearbox and lawnmower

Abstract

The application relates to the field of agricultural appliances, and discloses a transmission assembly, which comprises a rotating part, a transmission part arranged on at least one side of the rotating part, a connecting part connected with the rotating part and the transmission part respectively, a first limiting part comprising a first limiting structure and a second limiting structure, the first limiting structure being connected with the rotating part in a matched mode, and the second limiting structure being connected with the transmission part in a matched mode, the first limiting part forming a locked state when the rotating part rotates in a first direction, the first limiting part forming a disengaged state when the rotating part rotates in a second direction or stops rotating, wherein, in the locked state, the relative position between the first limiting structure and the second limiting structure is locked, the rotating part drives the connecting part and the transmission part to rotate synchronously, and in the disengaged state, the relative position between the first limiting structure and the second limiting structure is disengaged, and the rotating part can rotate independently. The application provides a transmission assembly, a gearbox and a mower which have an automatic clutching function and are convenient for users to push and pull.

Description

Technical Field

[0001] This application relates to the field of agricultural implements, and in particular to a transmission assembly, gearbox, and lawnmower. Background Technology

[0002] A lawnmower, also known as a lawn mower, lawn trimmer, or lawn mower, is a mechanical tool used for trimming lawns, vegetation, etc. It consists of a blade disc, engine, self-propelled system, blades, handlebars, and control unit.

[0003] To improve weeding efficiency, existing lawnmowers have become larger and heavier than before, so a self-propelled system has been added to enable them to move independently. However, the existing self-propelled systems lack an automatic clutch function, so the wheels remain connected to the drive motor after the lawnmower stops, making it difficult for the user to push or pull it. Summary of the Invention

[0004] This application primarily addresses the technical problem of existing lawnmowers lacking an automatic clutch function, making manual pushing and pulling laborious. It provides a transmission assembly, gearbox, and lawnmower that incorporates an automatic clutch function for easier user-assisted pushing and pulling.

[0005] To address the aforementioned technical problems, this application provides a transmission assembly, characterized in that the transmission assembly comprises, Rotating component; A transmission component, wherein the transmission component is at least disposed on one side of the rotating component; A connector, which is connected to both the rotating component and the transmission component; The first limiting member includes a first limiting structure and a second limiting structure. The first limiting structure is connected to the rotating member, and the second limiting structure is connected to the transmission member. When the rotating member rotates along the first direction, the first limiting member is locked; when the rotating member rotates along the second direction or stops rotating, the first limiting member is disengaged, wherein the first direction and the second direction are two opposite rotational directions; wherein. In the locked state, the relative positions between the first limiting structure and the second limiting structure are locked, and the rotating component drives the connecting component and the transmission component to rotate synchronously; In the disengaged state, the relative positions between the first limiting structure and the second limiting structure are disengaged, and the transmission component can rotate independently.

[0006] In one possible implementation, the connector includes, A rotating shaft is rotatably connected to the rotating component and rotatably connected to the transmission component.

[0007] In one possible implementation, the first limiting structure includes, A limiting protrusion group, the limiting protrusion group including a first limiting protrusion and a second limiting protrusion, the first limiting protrusion and the second limiting protrusion being circumferentially spaced apart on the end face of the rotating member; A first limiting groove is disposed between a first limiting protrusion and a second limiting protrusion, and the first limiting groove is formed by a first limiting surface and a second limiting surface that are circumferentially spaced apart; wherein... The first limiting groove rotates around the center of the end face of the rotating component to form a trajectory circle. The end face of the rotating component is bounded by the trajectory circle. The area of ​​the end face of the rotating component inside the trajectory circle is the first area, and the area of ​​the end face of the rotating component outside the trajectory circle is the second area. A limiting block, the first end of which is rotatably connected to the end face of the rotating member, allows the second end of the limiting block to enter or exit the first region or the second region through the first limiting groove under rotation; wherein, In the locked state, the second end of the limiting block is located within the second region; In the disengaged state, the second end of the limiting block is located within the first region.

[0008] In one possible implementation, the first limiting structure further includes, A limiting cover is disposed above the first limiting groove. The limiting cover forms an axial limit with the rotating shaft through a second limiting member. The limiting cover has a third limiting protrusion that protrudes radially and is located between the first limiting protrusion and the second limiting protrusion.

[0009] In one embodiment, the limiting cover is slidably connected to the limiting block via a sliding connecting device. The sliding connecting device includes a sliding groove and a sliding column. The sliding groove is disposed in one of the limiting cover and the limiting block, and the sliding column is disposed in 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.

[0010] In one possible implementation, the limiting block includes A rotating part is rotatably connected to the end face of the rotating component, and the rotation point between the rotating part and the end face of the rotating component is located within the first region; A connecting part, the first end of which is connected to the rotating part, and both the rotating part and the connecting part are located within the first region; The limiting part is connected to the second end of the connecting part, and 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.

[0011] In one possible implementation, the sliding groove includes, A first sliding segment extends in a curved manner toward the first region; The second sliding segment extends in a curved manner toward the second region, and the first sliding segment and the second sliding segment are transitionally connected to form a transition arc; wherein... The second sliding segment is composed of a first sliding arc and a second sliding arc that are spaced apart. The first sliding arc is positioned toward the second region, and the second sliding arc is positioned toward the first region.

[0012] In one possible implementation, the second limiting member includes, 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 provided on both sides of the second limiting groove, the limiting openings communicating with the second limiting groove; The third limiting groove is circumferentially disposed outside the rotating shaft and is located inside the second limiting groove; An elastic clamping member abuts against the limiting opening to form a clamping force and clamps the elastic clamping member in the third limiting groove. When the limiting cover rotates relative to the rotating shaft, rotational friction is generated between the elastic clamping member and the third limiting groove.

[0013] In one possible embodiment, the elastic clamping member includes, A first clamping member and a second clamping member are provided at intervals. The first clamping member and the second clamping member are connected at their first ends and are open at their second ends. A clamping groove adapted to the third limiting groove is formed in the middle of the first clamping member and the second clamping member.

[0014] In one possible embodiment, the transmission assembly further includes a reset structure, the reset structure comprising, Ribs are radially arranged on the end face of the rotating component, 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. The top block has a first end connected to the bottom of the limiting cover, and a second end extending toward the end face of the rotating member and spaced apart from the end face of the rotating member. An elastic element, wherein a first end of the elastic element abuts against the rib, and a second end of the elastic element abuts against the top block; wherein... When the rotating member rotates or stops rotating in the second direction, the elastic member drives the limiting block to rotate in the second direction, and the limiting block completely enters the first region.

[0015] In one possible implementation, the second limiting structure includes, A fourth limiting protrusion is provided. The transmission member is located on 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 face of the rotating member and is spaced apart 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 part is located in the limiting cavity. The limiting part abuts against the first limiting surface or the second limiting surface and the third limiting surface, respectively, to achieve synchronous rotation between the rotating member and the transmission member.

[0016] This application, in another aspect, provides a gearbox, characterized in that it includes the transmission assembly of embodiment 1, and further includes, An output component, wherein the output component is connected to the rotating component via the transmission component; A gearbox housing, wherein the transmission assembly is located within the gearbox housing.

[0017] In another aspect, this application provides a lawnmower, characterized in that it includes the gearbox as described in Embodiment 2.

[0018] Compared to existing technologies, when the rotating component rotates in the first direction, the first limiting component locks in place, and the rotating component drives the connecting component and the transmission component to rotate synchronously. When the rotating component rotates in the second direction or stops rotating, the first limiting component disengages, and the transmission component can rotate independently. Therefore, the engagement and disengagement between the transmission component and the rotating component can be achieved based on the different operating modes of the rotating component.

[0019] Therefore, this application has the characteristics of reasonable structure and convenient use. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of a transmission component of this application; Appendix Figure 2 This is a schematic diagram of one possible structure of the rotating component of this application; Appendix Figure 3 This is a left view of one of the rotating parts of this application; Appendix Figure 4 This is a schematic diagram of one structure of the limiting cover in this application; Appendix Figure 5 This is a right view of the limiting cover of this application; Appendix Figure 6 This is a schematic diagram of one structure of the elastic clamping component of this application; Appendix Figure 7 This is a schematic diagram of the structure between the rotating shaft, the limiting cover and the second limiting member of this application; Appendix Figure 8 This is a schematic diagram of another structure of the limiting cover in this application; Appendix Figure 9 This is a left view of the limiting cover of this application; Appendix Figure 10 This is a schematic diagram of one structure of the limiting block in this application; Appendix Figure 11 This is a left view of the limiting block in this application; Appendix Figure 12 This is a schematic diagram of a transmission component of this application; Appendix Figure 13 This is a schematic diagram of the transmission component of this application in the disengaged state; Appendix Figure 14 This is a schematic diagram of the transmission component of this application in a locked state; Appendix Figure 15 This is a schematic diagram of one possible structure of the gearbox in this application.

[0021] Explanation of the labels in the diagram: 10. Transmission components; 100. Rotating component; 110. First region; 111. Rotation point; 120. Second region; 200. Transmission component; 210. Transmission cavity; 300. Connecting component; 310. Rotary bearing; 320. Rotary shaft; 400. First limiting structure; 410. Limiting protrusion group; 411. First limiting protrusion; 412. Second limiting protrusion; 420. First limiting groove; 421. First limiting surface; 422. Second limiting surface; 430. Limiting block; 431. Rotating part; 432. Connecting part; 433. Limiting part; 440. Limiting cover; 441. Third limiting protrusion; 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; 500. Second limiting structure; 510. Fourth limiting protrusion; 511. Third limiting surface; 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; 700. Reset structure; 710. Elastic element; 720. Rib; 730. Top block; 20. Driving components; 30. Output components; 40. Gearbox housing; 41. Left gearbox body; 42. Right gearbox body. Detailed Implementation

[0022] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The existing technology of lawnmowers has the technical problem that they do not have an automatic clutch function, and it is relatively difficult to push and pull them manually.

[0024] Therefore, this application provides a transmission assembly, characterized in that the transmission assembly includes, Rotating component; A transmission component, wherein the transmission component is at least disposed on one side of the rotating component; A connector, which is connected to both the rotating component and the transmission component; The first limiting member includes a first limiting structure and a second limiting structure. The first limiting structure is connected to the rotating member, and the second limiting structure is connected to the transmission member. When the rotating member rotates along the first direction, the first limiting member is locked; when the rotating member rotates along the second direction or stops rotating, the first limiting member is disengaged, wherein the first direction and the second direction are two opposite rotational directions; wherein. In the locked state, the relative positions between the first limiting structure and the second limiting structure are locked, and the rotating component drives the connecting component and the transmission component to rotate synchronously; In the disengaged state, the relative positions between the first limiting structure and the second limiting structure are disengaged, and the transmission component can rotate independently.

[0025] This application, in another aspect, provides a gearbox, characterized in that it includes the transmission assembly of embodiment 1, and further includes, An output component, wherein the output component is connected to the rotating component via the transmission component; A gearbox housing, wherein the transmission assembly is located within the gearbox housing.

[0026] In another aspect, this application provides a lawnmower, characterized in that it includes the gearbox described in Embodiment 2.

[0027] Example 1: Please refer to the attached document. Figure 1 To be continued Figure 14 The diagram illustrates a specific embodiment of the transmission assembly 10 of this application. The transmission assembly 10 of this application is used to transmit mechanical kinetic energy, and is applied to agricultural implements. In one embodiment, the transmission assembly 10 of this application is applied to a lawnmower.

[0028] Appendix Figure 1 This is a schematic diagram of one possible structure of the transmission assembly of this application. Please refer to the attached diagram. Figure 1 As shown, the transmission assembly 10 includes a rotating member 100 and a transmission member 200. In this application, the rotating member 100 is driven by a driving member. The transmission member 200 is at least disposed on one side of the rotating member 100, and in this application, one side of the rotating member 100 is the end face of the rotating member 100. Further, the transmission member 200 may be disposed on one side of the rotating member 100 or on both sides of the rotating member 100. The rotating member 100 and the transmission member 200 are rotatably connected. Further, the driving connection between the rotating member 100 and the driving member is a belt pulley drive or a gear meshing drive. When the rotating member 100 and the driving member are connected by a belt pulley drive, 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 connected by a gear meshing drive, the driving member is the driving gear, and the rotating member 100 is the driven gear, and the driving member drives the rotating member 100 to rotate.

[0029] In one embodiment, a transmission member 200 is provided on both sides of the rotating member 100.

[0030] In one embodiment, the rotating member 100 and the driving member are driven by gear meshing.

[0031] Please refer to the attached document. Figure 1 As shown, the transmission assembly 10 of this application also includes a connector 300, which is connected to both the rotating member 100 and the transmission member 200. Furthermore, the connector 300 and the rotating member 100 are rotatably connected. Under the influence of the first limiting member, the rotating member 100 can either rotate around the connector 300 or be synchronously connected with the connector 300. The connector 300 and the transmission member 200 are fixedly connected; when the connector 300 rotates, the transmission member 200 will necessarily rotate synchronously with the connector 300. Therefore, in this application, the connector 300 is a transmission structure that transmits power from the rotating member 100 to the transmission member 200.

[0032] In one embodiment, the connector 300 includes a rotating shaft 320. The rotating shaft 320 passes through the rotating member 100 and the transmission member 200 in sequence. Furthermore, 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.

[0033] In one embodiment, the rotating shaft 320 is rotatably connected to the rotating member 100 and the transmission member 200 via 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.

[0034] Please refer to the attached document. Figure 1 As shown, the transmission assembly 10 of this application further includes a first limiting member, which 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 being connected to the rotating member 100, and the second limiting structure 500 being connected to the transmission member 200.

[0035] In this application, the rotation mode of the rotating member 100 is divided into rotation along a first direction, rotation along a second direction, and stop rotation. The first direction and the second direction are two opposite rotation directions. Since the rotation center of the rotating member 100 is the axis of the rotating member 100, the first direction is either clockwise or counterclockwise, and the second direction is either clockwise or counterclockwise.

[0036] Furthermore, when the rotating member 100 rotates along the first direction, the first limiting member forms a locked state. In the locked state, the relative position between the first limiting structure 400 and the second limiting structure 500 is locked, and the rotating member 100 drives the connecting member 300 and the transmission member 200 to rotate synchronously when rotating.

[0037] When the rotating member 100 rotates in the second direction or stops rotating, the first limiting member is in a disengaged state. In the disengaged state, the relative position between the first limiting structure 400 and the second limiting structure 500 is disengaged, and the transmission member 200 can rotate independently.

[0038] 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 disposed on the rotating member 100, and the second limiting structure 500 is disposed on the transmission member 200. The rotating shaft 320 is axially limited by the second limiting member 600 and the limiting cover 440. Simultaneously, the limiting cover 440 covers the rotating member 100. The relative rotation of the limiting cover 440 and the rotating member 100 enables the rotation of the limiting block 430. Under the action of the limiting block 430, the rotating member 100 and the transmission member 200 can be locked or disengaged. The relative relationship between the first limiting structure 400 and the second limiting structure 500 will be explained in detail in the subsequent figures. Figure 1 The second limiting member 600 is not the overall structure of the second limiting member; the overall structure of the second limiting member will be explained in detail in the subsequent accompanying drawings.

[0039] Please refer to the attached document. Figure 1 As shown, the transmission assembly 10 of this application also includes a reset structure 700, wherein... Figure 1 The reset structure 700 shown is not the complete structure of the reset structure; the complete structure of the reset structure 700 will be described in detail in the subsequent figures. Under the action of the reset structure 700, when the rotating member 100 rotates in the second direction or stops rotating, the first limiting member can switch from the locked state to the disengaged state.

[0040] Appendix Figure 2 This is a schematic diagram of one possible structure of the rotating component of this application. (Attached) Figure 3 This is a left view of one of the rotating parts of this application. Please refer to the attached document. Figure 2 and appendix Figure 3 As shown, the rotating component 100 of this application is a rotating gear. Rotating teeth are provided in the circumferential direction of the rotating component 100. The left and right end faces of the rotating component 100 are recessed inward to form receiving cavities. Limiting protrusions 410, first limiting grooves 420, rotating points 111, and ribs 720 may be provided within the receiving cavities. Whether the limiting protrusions 410, first limiting grooves 420, rotating points 111, and ribs 720 are provided within the receiving cavities depends on whether a transmission component is provided on one side of the end face of the rotating component 100. That is, the aforementioned limiting protrusions 410, first limiting grooves 420, rotating points 111, and ribs 720 should be correspondingly provided with the transmission component.

[0041] In one embodiment, the cross-section of the receiving cavity is circular.

[0042] In one embodiment, the end faces on both sides of the rotating member 100 are provided with a limiting protrusion group 410, a first limiting groove 420, a rotation point 111 and a rib 720.

[0043] The limiting protrusion group 410 and the first limiting groove 420 are both part of the first limiting structure 400. The limiting protrusion group 410 includes a first limiting protrusion 411 and a second limiting protrusion 412, which are circumferentially spaced apart in the receiving cavity on the end face of the rotating member 100. The first limiting groove 420 is disposed between the first limiting protrusion 411 and the second limiting protrusion 412, and is formed by a first limiting surface 421 and a second limiting surface 422 that are circumferentially spaced apart.

[0044] The first limiting groove 420 rotates around the center of the end face of the rotating member 100 to form a trajectory circle. The end face of the rotating member 100 is bounded by the trajectory circle. The area of ​​the end face of the rotating member 100 inside the trajectory circle is the first region 110, and the area of ​​the end face of the rotating member 100 outside the trajectory circle is the second region 120. The first limiting protrusion 411, the second limiting protrusion 412, the first limiting surface 421, and the second limiting surface 422 are all located on the rotation trajectory.

[0045] In one embodiment, the center of the end face of the rotating member 100 is the axis of the rotating member 100.

[0046] In one embodiment, the limiting protrusion group 410, the first limiting groove 420, the rotation point 111 and the rib 720 are provided in one or two groups.

[0047] Please refer to the attached document. Figure 2 As shown in this application, two arc-shaped protrusions are provided in the receiving cavity of the end face of the rotating member 100. The two arc-shaped protrusions coincide with the trajectory circle. The first ends of the two arc-shaped protrusions are spaced apart to form a first limiting groove 420. The second ends of the two arc-shaped protrusions are also spaced apart to form a first limiting groove 420. The first limiting surface 421 and the second limiting surface 422 are also formed by the end faces of the arc-shaped protrusions.

[0048] Of course, the first limiting groove 420 can also be formed in other ways. For example, both the first limiting groove 420 and the second limiting groove 610 are composed of an arc-shaped protrusion group. The arc-shaped protrusion group includes a first arc-shaped protrusion and a second arc-shaped protrusion arranged at intervals. The first limiting groove 420 is formed between the first arc-shaped protrusion and the second arc-shaped protrusion. The first limiting surface 421 is the end face of the first arc-shaped protrusion, and the second limiting surface 422 is the end face of the second arc-shaped protrusion. The first arc-shaped protrusion and the second arc-shaped protrusion coincide with the trajectory circle.

[0049] Please refer to the attached document. Figure 2 As shown in this application, the first ends of the first limiting protrusion 411 and the second limiting protrusion 412 are both connected to the arc-shaped protrusion. The first limiting protrusion 411 and the second limiting protrusion 412 are both extended outwards and coincide with the trajectory circle.

[0050] Of course, in the absence of the 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 receiving cavity on the end face of the rotating member 100.

[0051] Please refer to the attached document. Figure 2 As shown, the rotation point 111 of this application is located in the first region 110. The rotation point 111 of this application is a rotating column. The first end of the rotating column is connected to the receiving cavity of the end face of the rotating member 100, and the second end of the rotating column extends outward.

[0052] In one embodiment, the rotation point 111 is located near the first limiting protrusion 411 or the second limiting protrusion 412, and the rotation point 111 is located away from the first limiting groove 420.

[0053] Please refer to the attached document. Figure 2 As shown, the rib 720 of this application is radially arranged in the receiving cavity of 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.

[0054] In one embodiment, the first end of the rib 720 is positioned close to the rotation axis of the rotating member 100 end face, and the second end of the rib 720 is connected to the arc-shaped protrusion. The rib 720 has a long strip structure.

[0055] Appendix Figure 4 This is a structural schematic diagram of one type of limiting cover used in this application. (Attached) Figure 5 This is a right view of one of the limiting covers in this application. Please refer to the attached document. Figure 4 and appendix Figure 5 As shown, the specific structure of the limiting cover 440 near the transmission component 200 is presented. In actual installation, the limiting cover 440 is positioned above the first limiting groove 420.

[0056] Please refer to the attached document. Figure 4 and appendix Figure 5 As shown, the limiting cover 440 is configured to allow the limiting block 430 to rotate, and the specific rotation method of the limiting block 430 will be further explained in subsequent figures. The circumferential outer surface of the limiting cover 440 has an arc-shaped structure, and the limiting cover 440 has a third limiting protrusion 441 protruding radially. In actual use, the third limiting protrusion 441 rotates between the first limiting protrusion and the second limiting protrusion.

[0057] Please refer to the attached document. Figure 4 and appendix Figure 5As shown, the upper surface of the limiting cover 440 is provided with a second limiting groove 610 and a limiting opening 620. The second limiting groove 610 and the limiting opening 620 are part of the second limiting member 600. The second limiting groove 610 is located at the center of the limiting cover 440. The limiting openings 620 are provided on both sides of the second limiting groove 610. The limiting openings 620 are set along the radial position of the receiving cavity. The two limiting openings 620 are located on the same horizontal plane, and the second limiting groove 610 is connected to the limiting opening 620.

[0058] In one embodiment, the cross-section of the second limiting groove 610 is circular.

[0059] Appendix Figure 6 This is a schematic diagram of one type of elastic clamping component of this application. Please refer to the attached diagram. Figure 6 As shown, the specific structure of the elastic clamping member 640 is presented.

[0060] In this 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 spaced apart. The first ends of the first clamping member 641 and the second clamping member 642 are transitionally connected. The second ends of the first clamping member 641 and the second clamping member 642 are open. The middle part of the first clamping member 641 and the second clamping member 642 forms a clamping groove 643 that is adapted to the third limiting groove.

[0061] In one embodiment, the first clamping member 641 and the second clamping member 642 are arranged in parallel.

[0062] Appendix Figure 7 This is a structural diagram of the rotating shaft, the limiting cover, and the second limiting member of this application. Please refer to the attached diagram. Figure 7 As shown, the rotating shaft 320 of this application is axially limited by the second limiting member 600 and the limiting cover 440.

[0063] Please refer to the attached document. Figure 7As shown, the outer surface of the rotating shaft 320 of this application is provided with a third limiting groove 630 in the circumferential direction. In specific operation, the first and second clamping members of the elastic clamping member 640 are positioned within the limiting opening. The two side walls of the limiting opening respectively abut against the first and second clamping members to form a clamping force of the elastic clamping member 640, and restrict the clamping groove 643 of the elastic clamping member 640 within the second limiting groove 610. The clamping groove 643 of the elastic clamping member 640 engages with the third limiting groove 630, thereby forming an axial limiting 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 generated between the elastic clamping member 640 and the third limiting groove 630. Simultaneously, the elastic clamping member 640 provides a downward preload to the limiting cover 440 to prevent axial runout of the limiting cover 440. Furthermore, the limiting cover 440 is positioned between the rotating component and the transmission component, which can further prevent the limiting cover 440 from axially running.

[0064] Appendix Figure 8 This is a schematic diagram of another structure of the limiting cover of this application. (Attached) Figure 9 This is a left view of one of the limiting covers in this application. Please refer to the attached document. Figure 8 and appendix Figure 9 As shown, the specific structure of the limiting cover 440 near the rotating part is presented. In actual installation, the limiting cover 440 is set above the first limiting groove.

[0065] Please refer to the attached document. Figure 8 and appendix Figure 9 As shown, the limiting cover 440 is designed to allow the limiting block to rotate, and the specific rotation method of the limiting block will be further explained in subsequent figures. The circumferential outer surface of the limiting cover 440 has an arc-shaped structure, and the limiting cover 440 has a third limiting protrusion 441 protruding radially. In actual use, the third limiting protrusion 441 rotates between the first limiting protrusion and the second limiting protrusion.

[0066] Please refer to the attached document. Figure 8 and appendix Figure 9 As shown, a sliding groove 451 is provided 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 part of the sliding connection device, which can realize the sliding connection between the limiting cover and the limiting block.

[0067] In one embodiment, the sliding groove 451 includes a first sliding segment 451-1 and a second sliding segment 451-2. The first sliding segment 451-1 is bent toward the first region 110, and the second sliding segment 451-2 is bent toward the second region 120. In this application, both the first sliding segment 451-1 and the second sliding segment 451-2 are arc-shaped structures. Further, the center of the first sliding segment 451-1 coincides with the center of the rotating hole 442, the first end of the second sliding segment 451-2 is connected to the first sliding segment 451-1, and the second end of the second sliding segment 451-2 intersects with the boundary of the limiting cover 440. The first sliding segment 451-1 and the second sliding segment 451-2 are transitionally connected to form a transition arc, thereby facilitating the sliding column 452 to slide within the sliding groove 451.

[0068] The second sliding segment 451-2 is composed of a first sliding arc 451-21 and a second sliding arc 451-22 spaced apart. The first sliding arc 451-21 faces the second region 120, and the second sliding arc 451-22 faces away from the second region 120. Please refer to the attached document. Figure 8 and appendix Figure 9 As shown, the lower surface of the limiting cover 440 of this application is also provided with a top block 730. The top block 730 is formed by extending downward from the lower surface of the limiting cover 440 and is part of the reset structure 700. The first end of the top block 730 is connected to the bottom of the limiting cover 440. During installation, the second end of the top block 730 extends toward the end face of the rotating member and is spaced apart from the end face of the rotating member.

[0069] Please refer to the attached document. Figure 8 and appendix Figure 9 As shown, the center of the limiting cover 440 of this application is also provided with a rotating hole 442, and the limiting cover 440 is rotatably connected to the rotating shaft through the rotating hole 442.

[0070] Appendix Figure 10 This is a schematic diagram of one possible structure of the limiting block in this application. (Attached) Figure 11 This is a left view of one of the limiting blocks in this application. Please refer to the attached diagram. Figure 10 and appendix Figure 11 As shown, the limiting block 430 of this application is presented, and the limiting block 430 is part of the first limiting structure.

[0071] Please refer to the attached document. Figure 10 and appendix Figure 11 As shown, the limiting block 430 of this application includes a rotating part 431, which is rotatably connected to the end face of the rotating member 100. Furthermore, the rotating part 431 is rotatably connected to the rotating member 100 through a rotating point.

[0072] The limiting block 430 of this application also includes a connecting part 432 and a limiting part 433. The first end of the connecting part 432 is connected to the rotating part 431, and the second end of the connecting part 432 is connected to the limiting part 433. A first included angle is formed between the limiting part 433 and the rotating part 431 to facilitate the limiting part 433 to form a corresponding limit.

[0073] Please refer to the attached document. Figure 10 and appendix Figure 11 As shown, the limiting part 433 of the limiting block 430 of this application is also provided with a sliding post 452. The first end of the sliding post 452 is connected to the upper surface of the limiting part, and the second end of the sliding post 452 extends upward.

[0074] Appendix Figure 12 This is a structural schematic diagram of one type of transmission component in this application. Please refer to the attached diagram. Figure 12 As shown, the transmission component of this application has a transmission cavity 210 on the side facing the rotating component. The transmission cavity 210 is formed by extending upward from the bottom surface of the transmission component 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 component 200. The second end of the fourth limiting protrusion 510 extends towards the end face of the rotating component, and the second end of the fourth limiting protrusion 510 is spaced apart from the end face of the rotating component 100. The fourth limiting protrusion 510 has a third limiting surface 511.

[0075] Appendix Figure 13 This is a schematic diagram of the transmission component of this application in its disengaged state. (Attached) Figure 14 This is a schematic diagram of the transmission component in the locked state of this application. Please refer to the attached diagram. Figure 13 and appendix Figure 14 , attached Figure 13 With appendix Figure 14 This is used to illustrate the installation structure and specific working process of the transmission assembly 10.

[0076] The installation relationship of each component in the transmission assembly 10 is as follows: the first end of the limiting block 430 is rotatably connected to the end face of the rotating member 100, that is, the rotating part of the limiting block 430 is rotatably connected to the end face of the rotating member 100, and the rotation point between the rotating part and the end face of the rotating member is located in the first region. When the limiting block 430 rotates, the second end of the limiting block 430 enters or exits the first region or the second region through the first limiting groove 420, that is, the limiting part 433 of the rotating member 100 can enter or exit the first region or the second region through the first limiting groove 420. In the locked state, the second end of the limiting block 430, i.e., the limiting part, is located in the second region. In the disengaged state, the second end of the limiting block 430, i.e., the limiting part, is located in the first region. Regardless of whether it is in the locked or disengaged state, the rotating part and the connecting part of the limiting block 430 are both located in the first region.

[0077] Furthermore, the limiting cover is attached to the end face of the rotating component (limiting cover 440 is attached). Figure 13 and appendix Figure 14 (Not shown in the image) The limiting cover is located above the first limiting groove 420, and the limiting cover can form an axial limit between the second limiting member and the rotating shaft. When the limiting cover rotates, the third limiting protrusion rotates between the first limiting protrusion and the second limiting protrusion.

[0078] Furthermore, the limiting cover is slidably connected to the limiting block via a sliding connection device, which includes a sliding groove and a sliding column. The sliding groove is disposed on the limiting cover, and the sliding column is disposed on the limiting block. When the rotating component rotates synchronously with the limiting cover, the sliding column slides within the sliding groove and drives the second end of the limiting block to enter the second region through the first limiting groove.

[0079] Furthermore, the reset structure 700 also includes an elastic element 710, the first end of which abuts against the rib 720, and the second end of which abuts against the top block 730. When the rotating member 100 rotates in the second direction or stops rotating, the elastic element 710 drives the limiting block 430 to rotate in the second square, and the limiting block 430 enters the first region 110.

[0080] Furthermore, the transmission component is located at the top of the limiting cover, and the transmission component and the rotating component 100 work together to clamp the limiting cover inside. In the locked state, a limiting cavity is formed between the first limiting surface or the second limiting surface and the third limiting surface, and the limiting part is located in the limiting cavity. The limiting part abuts against the first limiting surface and the second limiting surface respectively to achieve synchronous rotation of the rotating component and the transmission component.

[0081] Please refer to the attached document. Figure 13 and appendix Figure 14 As shown, the working process of the transmission assembly 10 will be further explained 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.

[0082] Please refer to the attached document. Figure 14As shown, the rotating member 100 rotates in the first direction, simultaneously causing 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 point, the rotating member 100 continues to rotate. Because 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. Simultaneously, because the limiting block 430 and the rotating member 100 are rotatably connected, the limiting portion of the limiting block 430 will rotate 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 or second limiting surface together form a limiting cavity. The limiting portion of the limiting block 430 is located within the limiting cavity. Therefore, as the rotating member 100 continues to rotate, the first or second limiting surface abuts against the limiting portion, and the limiting portion abuts against the fourth limiting protrusion 510, thereby locking the position between the rotating member 100 and the transmission member 200. The rotating member 100 and the transmission member 200 rotate synchronously. Furthermore, when the rotating member 100 rotates along the first direction, the elastic member 710 is compressed to store force. Please refer to the attached document. Figure 13 As shown, when the rotating member 100 stops rotating, the compressive force generated 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 and the rotating member 100 are rotatably connected. Since the limiting part of the limiting block 430 rotates from the second region 120 to the first region 110, there is no corresponding structure in the second region 120 to limit the transmission member 200, and the transmission member 200 can rotate independently.

[0083] Example 2: Appendix Figure 15 This is a structural schematic diagram of one possible gearbox in this application. Please refer to the attached diagram. Figure 15 As shown, the gearbox of this application includes the transmission assembly 10 in Embodiment 1.

[0084] Please refer to the attached document. Figure 15 As shown, the gearbox of this application also includes a drive member 20, which is connected to the rotating member 100 in a transmission manner. Under the drive of the drive member 20, the rotating member 100 rotates in a first direction or a second direction.

[0085] In one embodiment, the driving component 20 is a drive motor.

[0086] Please refer to the attached document. Figure 15As shown, the gearbox of this application also includes an output component 30, which is connected to the rotating component 100 via a transmission component 200 to realize power transmission.

[0087] Please refer to the attached document. Figure 15 As shown, the gearbox of this application also includes a gearbox housing 40, and the transmission assembly 10 is located inside the gearbox housing 40.

[0088] In one embodiment, the gearbox housing 40 includes a left housing 41 and a right housing 42.

[0089] In this application, the output component 30 is connected to a traveling wheel. When the transmission component 10 is in a locked state, the output component 30 can rotate synchronously with the rotating component 100 to achieve automatic movement of the traveling wheel. When the transmission component 10 is in a disengaged state, the output component 30 can rotate independently, and the traveling wheel can achieve manual movement.

[0090] Example 3: This application discloses a lawnmower including the gearbox of embodiment 2.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0093] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A transmission component, characterized in that, The transmission assembly includes, Rotating component; A transmission component, wherein the transmission component is at least disposed on one side of the rotating component; A connector, which is connected to both the rotating component and the transmission component; The first limiting member includes a first limiting structure and a second limiting structure. The first limiting structure is connected to the rotating member, and the second limiting structure is connected to the transmission member. When the rotating member rotates along the first direction, the first limiting member is locked; when the rotating member rotates along the second direction or stops rotating, the first limiting member is disengaged, wherein the first direction and the second direction are two opposite rotational directions; wherein. In the locked state, the relative positions between the first limiting structure and the second limiting structure are locked, and the rotating component drives the connecting component and the transmission component to rotate synchronously; In the disengaged state, the relative positions between the first limiting structure and the second limiting structure are disengaged, and the transmission component can rotate independently; The first limiting structure includes... A limiting protrusion group, the limiting protrusion group including a first limiting protrusion and a second limiting protrusion, the first limiting protrusion and the second limiting protrusion being circumferentially spaced apart on the end face of the rotating member; A first limiting groove is disposed between a first limiting protrusion and a second limiting protrusion, and the first limiting groove is formed by a first limiting surface and a second limiting surface that are circumferentially spaced apart; wherein... The first limiting groove rotates around the center of the end face of the rotating component to form a trajectory circle. The end face of the rotating component is bounded by the trajectory circle. The area of ​​the end face of the rotating component inside the trajectory circle is the first area, and the area of ​​the end face of the rotating component outside the trajectory circle is the second area. A limiting block, the first end of which is rotatably connected to the end face of the rotating member, allows the second end of the limiting block to enter or exit the first region or the second region through the first limiting groove under rotation; wherein, In the locked state, the second end of the limiting block is located within the second region; In the disengaged state, the second end of the limiting block is located within the first region.

2. The transmission assembly according to claim 1, characterized in that, The connector includes, A rotating shaft is rotatably connected to the rotating component and rotatably connected to the transmission component.

3. The transmission assembly according to claim 2, characterized in that, The first limiting structure also includes, A limiting cover is disposed above the first limiting groove. The limiting cover forms an axial limit with the rotating shaft through a second limiting member. The limiting cover has a third limiting protrusion that protrudes radially and is located between the first limiting protrusion and the second limiting protrusion.

4. The transmission assembly according to claim 3, characterized in that, The limiting cover is slidably connected to the limiting block via a sliding connection device. The sliding connection device includes a sliding groove and a sliding column. The sliding groove is disposed in one of the limiting cover and the limiting block, and the sliding column is disposed in 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.

5. The transmission assembly according to claim 4, characterized in that, The limiting block includes A rotating part is rotatably connected to the end face of the rotating component, and the rotation point between the rotating part and the end face of the rotating component is located within the first region; A connecting part, the first end of which is connected to the rotating part, and both the rotating part and the connecting part are located within the first region; The limiting part is connected to the second end of the connecting part, and 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.

6. The transmission assembly according to claim 4, characterized in that, The sliding groove includes, A first sliding segment extends in a curved manner toward the first region; The second sliding segment extends in a curved manner toward the second region, and the first sliding segment and the second sliding segment are transitionally connected to form a transition arc; wherein... The second sliding segment is composed of a first sliding arc and a second sliding arc that are spaced apart. The first sliding arc is positioned toward the second region, and the second sliding arc is positioned toward the first region.

7. The transmission assembly according to claim 3, characterized in that, The second limiting member includes, 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 provided on both sides of the second limiting groove, the limiting openings communicating with the second limiting groove; The third limiting groove is circumferentially disposed outside the rotating shaft and is located inside the second limiting groove; An elastic clamping member abuts against the limiting opening to form a clamping force and clamps the elastic clamping member in the third limiting groove. When the limiting cover rotates relative to the rotating shaft, rotational friction is generated between the elastic clamping member and the third limiting groove.

8. The transmission assembly according to claim 7, characterized in that, The elastic clamping member includes, A first clamping member and a second clamping member are provided at intervals. The first clamping member and the second clamping member are connected at their first ends and are open at their second ends. A clamping groove adapted to the third limiting groove is formed in the middle of the first clamping member and the second clamping member.

9. The transmission assembly according to claim 3, characterized in that, The transmission assembly further includes a reset structure, the reset structure comprising: Ribs are radially arranged on the end face of the rotating component, 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. The top block has a first end connected to the bottom of the limiting cover, and a second end extending toward the end face of the rotating member and spaced apart from the end face of the rotating member. An elastic element, wherein a first end of the elastic element abuts against the rib, and a second end of the elastic element abuts against the top block; wherein... When the rotating member rotates or stops rotating in the second direction, the elastic member drives the limiting block to rotate in the second direction, and the limiting block completely enters the first region.

10. The transmission assembly according to claim 5, characterized in that, The second limiting structure includes, A fourth limiting protrusion is provided. The transmission member is located on 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 face of the rotating member and is spaced apart 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 or the second limiting surface and the third limiting surface. The limiting part is located in the limiting cavity. The limiting part abuts against the first limiting surface and the third limiting surface, respectively, to achieve synchronous rotation between the rotating member and the transmission member.

11. A gearbox, characterized in that, The transmission component includes any one of claims 1 to 10, and further includes, An output component, wherein the output component is connected to the rotating component via the transmission component; A gearbox housing, wherein the transmission assembly is located within the gearbox housing.

12. A lawnmower, characterized in that, Includes the gearbox as described in claim 11.

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