Folding hoop and mower

Abstract

The present invention provides a folding clamp and a grass trimmer, the folding clamp comprises: a first clamp and a second clamp that can be pivotally connected, the second clamp is provided with a locking part; a sliding member that can be slidably arranged on the first clamp; a connecting assembly that is arranged in the first clamp and is linked with the sliding member, so that when the connecting assembly slides to the first position with the sliding member, the first transmission shaft and the second transmission shaft are connected, and the sliding member is locked by the locking part and the sliding member; when the connecting assembly slides to the second position with the sliding member, the locking part is disengaged from the sliding member, and the first transmission shaft and the second transmission shaft are released, so as to realize the foldability of the first member to be connected and the second member to be connected. The folding clamp of the present invention can lock or unlock the sliding member through the cooperation of the sliding member and the locking part, so as to realize the connection and release of the first connecting shaft and the second connecting shaft, and can achieve the purpose of connecting or folding the first member to be connected and the second member to be connected.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical connection, in particular to a folding hoop and a grass trimmer having the folding hoop. Background Art

[0002] In the field of gardening, when people are working with straight-tube garden tools, they hope that the connecting rod between the main body and the working head is as long as possible, which is conducive to a wide range of operations. However, when the tool is not working, they hope that the connecting rod is as short as possible, which is more convenient to store and save space. However, shaft transmission is usually required in the straight tube. In the prior art, the connecting rod between the main body and the working head of the straight-tube garden tool is generally connected through a joint, and the joint is set as a claw-type meshing structure to achieve transmission. Summary of the invention

[0003] One object of the present invention is to provide a folding mechanism with an in-tube shaft transmission that is easy to store, and the connection or folding of a first member to be connected and a second member to be connected can be easily achieved through the cooperation between a sliding member and a locking portion.

[0004] Another object of the present invention is to ensure the stability of the structure after the first member to be connected and the second member to be connected are connected.

[0005] In particular, the present invention provides a folding hoop for realizing axial connection and / or folding of a first member to be connected and a second member to be connected, wherein the first member to be connected and the second member to be connected are respectively provided with a first transmission shaft and a second transmission shaft that can move along their own axial direction, and the folding hoop comprises:

[0006] A first clamp and a second clamp that are pivotally connected are used to be fixedly connected to the first to-be-connected member and the second to-be-connected member, respectively;

[0007] A first connecting shaft and a second connecting shaft are respectively arranged in the first clamp and the second clamp, and are respectively used to be fixedly connected to the first transmission shaft and the second transmission shaft, and a locking portion is provided on the second clamp;

[0008] A sliding member, arranged outside the first clamp, and slidable along the axial direction of the first clamp;

[0009] A connecting component is arranged inside the first clamp and is configured to be linked with the sliding member so that when the connecting component slides to the first position with the sliding member, the first transmission shaft and the second transmission shaft are connected and the sliding member is locked by the locking portion in cooperation with the sliding member to achieve axial connection between the first member to be connected and the second member to be connected; when the connecting component slides to the second position with the sliding member, the locking portion disengages from the sliding member and releases the first transmission shaft and the second transmission shaft to achieve foldability of the first member to be connected and the second member to be connected.

[0010] Further, the first position is a position when the second clamp is pivoted relative to the first clamp to the point where the first transmission shaft and the second transmission shaft are coaxial.

[0011] Furthermore, the folding hoop also includes:

[0012] The first connecting shaft and the second connecting shaft are respectively arranged in the first clamp and the second clamp, and are respectively used to be fixedly connected to the first transmission shaft and the second transmission shaft; the first connecting shaft and the second connecting shaft are transmission shafts, and the end sections of the first connecting shaft and the second connecting shaft are square.

[0013] Further, the sliding member is a sliding sleeve, and the sliding sleeve includes: a sliding sleeve body and a pushing body, the sliding sleeve body is sleeved on the first clamp and connected to the connecting assembly through a pin shaft, the pushing body is arranged on the outer wall surface of the sliding sleeve body, the pushing body extends along the axial direction of the sliding sleeve body and at least a part of it extends out of the sliding sleeve body, the locking portion on the second clamp pushes the pushing body to slide along the axial direction of the first clamp when the second clamp pivots, and stops against the pushing body when the connecting assembly connects the first connecting shaft and the second connecting shaft to achieve locking of the sliding member.

[0014] Furthermore, the connection component comprises:

[0015] a shaft sleeve, which is disposed in the first hoop and is movable on the first connecting shaft, the shaft sleeve being arranged in linkage with the sliding member, and connecting the first connecting shaft and the second connecting shaft when the second hoop is pivoted to the first position, and the sliding member is locked by the locking portion;

[0016] A bearing, disposed on the shaft sleeve;

[0017] A bearing seat, arranged on the bearing to support the bearing;

[0018] A bearing sleeve, disposed on the bearing seat and connected to the sliding member;

[0019] An elastic member has one end abutted against the first to-be-connected member located within the first hoop and the other end abutted against the bearing sleeve. When the sliding member slides, the elastic member is compressed by the bearing sleeve, and when the second hoop pivots to the first position, the first connecting shaft and the second connecting shaft are connected by the shaft sleeve, and the sliding member is locked by the locking portion.

[0020] Further, the bearing is a deep groove ball bearing; the elastic member is a spring.

[0021] Further, one end of the shaft sleeve facing the second connecting shaft is provided with a guiding portion, and the guiding portion extends obliquely outward along the axial direction of the shaft sleeve.

[0022] Further, the folding hoop further includes: a locking mechanism provided on the second hoop, and a locking groove cooperating with the locking mechanism is provided on the first hoop. When the second hoop pivots to the first position, the first connecting shaft and the second connecting shaft are connected by the connecting assembly, and are locked on the locking groove through the locking mechanism to lock the first hoop and the second hoop. Further, the locking mechanism includes:

[0023] A locking member for locking on the locking groove, and the locking member is a closed-loop elastic steel wire;

[0024] A lock catch provided on the second hoop, the cross-section of the lock catch is in a shape of "匚", and the lock catch is movably connected to the locking member for tightening or loosening the locking member.

[0025] The present invention also provides a brush cutter including the folding hoop in the above embodiment.

[0026] The folding hoop of the present invention includes a first hoop and a second hoop that are pivotally connected. By pivoting the second hoop to the first position, the first drive shaft and the second drive shaft are connected by a connecting assembly, and the sliding member is locked through the cooperation of the sliding member and the locking portion, so as to realize the axial connection of the first to-be-connected member and the second to-be-connected member. When the second hoop pivots to the second position, the locking portion disengages from the sliding member, and the connecting assembly releases the first drive shaft and the second drive shaft, so as to realize the folding of the first to-be-connected member and the second to-be-connected member. Therefore, the folding hoop of the present invention realizes the locking of the sliding member through the cooperation of the sliding member and the locking portion, and achieves the purpose of connecting or folding the first to-be-connected member and the second to-be-connected member.

[0027] Further, for the folding hoop of the present invention, a locking mechanism is provided on the second hoop, and a locking groove cooperating with the locking mechanism is provided on the first hoop. By locking the locking mechanism on the locking groove, the first hoop and the second hoop can be locked, ensuring the structural stability after the connection of the first to-be-connected member and the second to-be-connected member.

[0028] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0030] Figure 1 is a schematic structural diagram of a folding clamp according to an embodiment of the present invention;

[0031] Figure 2 is an assembly diagram of a folding clamp and a first part to be connected and a second part to be connected according to an embodiment of the present invention;

[0032] Figure 3 is a cross-sectional view of a connection state of a first clamp and a second clamp of a folding clamp according to an embodiment of the present invention;

[0033] Figure 4 is a side view of the first and second hoops of the folding hoop in unlocked states according to an embodiment of the present invention;

[0034] Figure 5 is a cross-sectional view of a locked state of a first clamp and a second clamp of a folding clamp according to an embodiment of the present invention;

[0035] Figure 6 is a cross-sectional view of a connection assembly of a folding hoop according to an embodiment of the present invention;

[0036] Figure 7 is another cross-sectional view of a connection assembly of a folding clamp according to an embodiment of the present invention.

[0037] Reference numerals:

[0038] Folding clamp 100;

[0039] First clamp 10; locking groove 11;

[0040] A second clamp 20; a locking portion 21;

[0041] Sliding member 30; Sliding sleeve body 31; Pushing body 32;

[0042] A first connecting shaft 40; a second connecting shaft 41;

[0043] Connecting assembly 50; bushing 51; guide portion 511; bearing 52; bearing seat 53; bearing sleeve 54; elastic member 55;

[0044] Locking mechanism 60; locking member 61; lock buckle 62;

[0045] A first part to be connected 71; a second part to be connected 72;

[0046] Rotating shaft 80; pin shaft 81.

[0047] A first transmission shaft 91; a second transmission shaft 92. DETAILED DESCRIPTION

[0048] The folding clamp 100 of the present invention is used to realize the axial connection and / or folding of the first to-be-connected member 71 and the second to-be-connected member 72. The first to-be-connected member 71 and the second to-be-connected member 72 are respectively installed with a first transmission shaft 91 and a second transmission shaft 92 that can move along their own axial direction. Specifically, the folding clamp 100 of the present invention can be applied to a lawn mower, connecting the first to-be-connected member 71 and the second to-be-connected member 72 between the mainframe and the working head of the lawn mower. The first to-be-connected member 71 and the second to-be-connected member 72 can respectively use connecting rods. The first to-be-connected member 71 is connected to the mainframe through the first transmission shaft 91, and the second to-be-connected member 72 is connected to the working head through the second transmission shaft 92.

[0049] See also Figures 1 to 5 The folding hoop 100 of the present invention is mainly composed of a first hoop 10, a second hoop 20, a locking portion 21, a sliding member 30 and a connecting assembly 50. The first hoop 10 and the second hoop 20 can be connected in a pivotable manner, and the locking portion 21 is provided on the second hoop 20. Specifically, the first hoop 10 and the second hoop 20 can be pivotally connected through a rotating shaft 80. The first hoop 10 and the second hoop 20 can be respectively fixed on the first to-be-connected member 71 and the second to-be-connected member 72.

[0050] The sliding member 30 can be installed outside the first clamp 10, and the sliding member 30 can slide along the axial direction of the first clamp 10. The sliding member 30 can slide on the first clamp 10 manually or by the locking portion 21. The connecting assembly 50 is installed in the first clamp 10, and the connecting assembly 50 is linked with the sliding member 30. The connecting assembly 50 is movable along the axial direction of the first transmission shaft 91, and the movement of the sliding member 30 can drive the movement of the connecting assembly 50. Figure 3 and Figure 4When the second hoop 20 pivots, the sliding member 30 is pushed to move away from the second hoop. When the second hoop 20 pivots to the first position, the sliding member 30 slides toward the second hoop 20. The connecting assembly 50 also slides toward the second hoop 20 under the linkage of the sliding member 30. The first transmission shaft 91 and the second transmission shaft 92 are connected together through the connecting assembly 50. At the same time, the locking part 21 and the pushing body 32 are locked to achieve the axial connection between the first to-be-connected member 71 and the second to-be-connected member 72. Figure 5 When the connecting component 5 slides to the second position with the sliding member 30, the locking portion 21 can be disengaged from the sliding member 30, pushing the main body 32 to move out of the rotation path of the locking portion 21, and the connecting component 50 releases the first transmission shaft 91 and the second transmission shaft 92, thereby realizing the foldability of the first to-be-connected member 71 and the second to-be-connected member 72, which is convenient for storage and saves space.

[0051] This application is explained by taking a lawn mower as an example. The first to-be-connected member 71 and the second to-be-connected member 72 between the main body and the working head of the lawn mower can realize the axial connection or folding of the first to-be-connected member 71 and the second to-be-connected member 72 by installing a folding hoop 100. When the lawn mower needs to be operated, the first transmission shaft 91 and the second transmission shaft 92 in the first hoop 10 and the second hoop 20 are connected by the folding hoop 100. When a longer connecting rod is needed to facilitate the operation of the lawn mower in a wider range, the first to-be-connected member 71 and the second to-be-connected member 72 are connected by the cooperation between the sliding member 30, the connecting assembly 50 and the locking part 21. When the lawn mower is not in operation, the first transmission shaft 91 and the second transmission shaft 92 can be released by unlocking the sliding member 30 and the locking part 21 through the folding hoop 100, and the first to-be-connected member 71 and the second to-be-connected member 72 are folded for easy storage and space saving. Of course, the folding clamp 100 of the present invention is not limited to use on lawn mowers. Other similar straight tube tools with shaft transmission that need to be connected or folded can also use the folding clamp 100 of the present application.

[0052] Therefore, according to the folding clamp 100 of the embodiment of the present invention, when pivoting from the folded state to the axial connection, the locking portion 21 pushes the pushing body 32 of the sliding member 30, and the linkage connection assembly 50 gives way to achieve foldability. When rotating to the axial direction, the sliding member 30 is disengaged from the locking portion 21 and reset to achieve axial connection.

[0053] According to one embodiment of the present invention, Figure 3 and Figure 4As shown, the first position can be the position when the second hoop 20 pivots relative to the first hoop 10 to the coaxial position of the first transmission shaft 91 and the second transmission shaft 92. The second position can be the position when the second hoop 20 pivots relative to the first hoop 10 to the non-coaxial position of the first transmission shaft 91 and the second transmission shaft 92. That is to say, when the second hoop 20 pivots relative to the first hoop 10, when the second connecting shaft 41 in the second hoop 20 pivots to be coaxial with the first connecting shaft 40, the sliding member can slide in the direction of the second hoop 20, and the connecting assembly 50 also slides in the direction of the second hoop 20 under the linkage action of the sliding member 30. Since the first transmission shaft 91 and the second transmission shaft 92 are in a coaxial position at this time, the connecting assembly 50 moves a part of it to the second transmission shaft 92 through the first transmission shaft 91, so that the first transmission shaft 91 and the second transmission shaft 92 are connected together, and at the same time, the locking part 21 locks the sliding member 30 to achieve the connection between the first to-be-connected member 71 and the second to-be-connected member 72, which is more conducive to the large-scale operation of the lawn mower.

[0054] According to one embodiment of the present invention, the folding clamp 100 also includes: a first connecting shaft 40 and a second connecting shaft 41, the first connecting shaft 40 and the second connecting shaft 41 are respectively installed in the first clamp 10 and the second clamp 20, and the first connecting shaft 40 and the second connecting shaft 41 are respectively connected to the first transmission shaft 91 and the second transmission shaft 92 to transmit the working torque of the first transmission shaft 91 and the second transmission shaft 92.

[0055] According to one embodiment of the present invention, see Figure 1 and Figure 2 The sliding member 30 can adopt a sliding sleeve, and the sliding sleeve is mainly composed of a sliding sleeve body 31 and a pushing body 32. The sliding sleeve body 31 is sleeved on the first clamp 10, and the sliding sleeve body 31 can move along the axial direction of the first clamp 10. The pushing body 32 is processed on the outer wall surface of the sliding sleeve body 31, and the pushing body 32 extends along the axial direction of the sliding sleeve body 31 and at least a part of it extends out of the sliding sleeve body 31. A locking portion 21 is processed on the second clamp 20, and the locking portion 21 can push the pushing body 32 to slide along the axial direction of the first clamp 10 when the second clamp 20 pivots. Of course, this process can also be directly pushed manually to push the pushing body 32 to slide. When the second clamp 20 pivots to the first position, the locking portion 21 can be separated from the pushing body 32, so that the sliding sleeve slides in the opposite direction to the original direction (sliding toward the direction of the second clamp 20), ensuring that the connecting assembly 50 connects the first connecting shaft 40 and the second connecting shaft 41. At this time, the locking portion 21 locks the pushing body 32 (see Figure 5), realize the connection between the first to-be-connected member 71 and the second to-be-connected member 72. In a preferred embodiment of the present invention, the pushing body 32 can be processed into a long strip extending axially along the sleeve body 31, and the locking portion 21 can be processed into a convex point. When the second hoop 20 pivots, the convex point can stop the pushing body 32 to push the sleeve to slide on the first hoop 10. When the second hoop 20 continues to pivot, the convex point continuously pushes the pushing body 32, and at the same time, the convex point moves upward along the width direction of the pushing body 32. When rotating from the folded state, the locking portion 21 abuts against the pushing body 32, thereby moving the connecting assembly 50 to the left, so that the second connecting shaft 41 will not be interfered by the connecting assembly 50 when rotating. When the second hoop 20 pivots to the first position, that is, when the second hoop 20 pivots to the second connecting shaft 41 and the first connecting shaft 40, the protrusion moves to the outside of the width direction of the pushing body 32 (moves to the upper surface of the pushing body), and the pushing body 32 is now freed from the restriction of the protrusion, and the sliding sleeve slides in the opposite direction to the original direction (toward the direction of the second hoop 20), so that the connecting assembly 50 connects the first connecting shaft 40 and the second connecting shaft 41 together, and realizes the connection between the first to-be-connected member 71 and the second to-be-connected member 72, and the protrusion can lock it on the pushing body 32. The locking portion 21 in the present application can also adopt a convex block, a protrusion or other structure, and the specific shape of the pushing body 32 can also be specifically set according to actual needs. As long as the structure that facilitates the locking portion 21 to push it to slide should fall within the protection scope of the present application. If it is necessary to store the first part to be connected 71 and the second part to be connected 72, the sliding member 30 can be slid to the second position. During this process, the operator can push the sliding member 30 by hand to facilitate the locking part 21 to slide out of the pushing body 32, release the first connecting shaft 40 and the second connecting shaft 41, and realize the folding of the first part to be connected 71 and the second part to be connected 72, thereby realizing the conversion of the first part to be connected 71 and the second part to be connected 72 from the working state to the storage state.

[0056] In some embodiments of the present invention, see Figure 7 , the sliding member 30 and the connecting assembly 50 are connected by a pin 81. That is, the sliding member 30 and the connecting assembly 50 are linked by the pin 81, and when the sliding member 30 moves, the connecting assembly 50 can be driven to move by the pin 81, and the displacement of the connecting assembly 50 is controlled by the displacement of the sliding member 30. In addition, the pin 81 has a simple structure and is easy to install and operate, which is conducive to improving assembly efficiency.

[0057] According to one embodiment of the present invention, Figures 3 to 7As shown, the connecting assembly 50 is mainly composed of a sleeve 51, a bearing 52, a bearing seat 53, a bearing sleeve 54 and an elastic member 55. Among them, the sleeve 51 is installed in the first hoop 10, the sleeve 51 is sleeved on the first connecting shaft 40, and the sleeve 51 can move on the first connecting shaft 40. When the second hoop 20 pivots to the first position, the sleeve 51 connects the first connecting shaft 40 and the second connecting shaft 41, and a locking portion 21 is provided to lock the sliding member 30 to achieve the connection of two adjacent connecting rods. The bearing 52 is installed on the sleeve 51, and the bearing seat 53 is installed on the bearing 52, and the bearing seat 53 can provide support for the bearing 52. The bearing sleeve 54 can be sleeved on the bearing seat 53, and the bearing seat 53 is connected to the sliding member 30 through a pin 81. When the sliding member 30 slides, the bearing seat 53 is driven to slide by the pin 81, and the sleeve 51 is driven to slide by the sliding of the bearing seat 53. One end of the elastic member 55 stops against the first to-be-connected member 71 located in the first hoop 10, and the other end of the elastic member 55 stops against the bearing sleeve 54. When the sliding member 30 slides, the elastic member 55 is compressed by the bearing sleeve 54, so that the elastic member 55 is in a compressed state. When the second hoop 20 pivots, the sliding member 30 is pushed to slide, and the sliding of the sliding member 30 drives the sliding sleeve to move and compress the spring member, so that the spring member generates elastic force. When the second hoop 20 pivots to the first position (the second connecting shaft 41 is coaxial with the first connecting shaft 40), the sliding member 30 disengages from the locking portion 21 on the second hoop 20. At this time, the bearing sleeve 54 slides toward the direction of the second hoop 20 under the elastic force of the elastic member 55, so that the sleeve 51 connects the first connecting shaft 40 and the second connecting shaft 41, and at the same time, the locking portion 21 locks the sliding member 30 to achieve the connection between the first to-be-connected member 71 and the second to-be-connected member 72.

[0058] According to one embodiment of the present invention, see Figure 2 and Figure 5 , the first connecting shaft 40 and the second connecting shaft 41 are transmission shafts, the end sections of the first connecting shaft 40 and the second connecting shaft 41 are square, and the interior of the sleeve 51 has a square shape corresponding to the cross-sectional shape of the first connecting shaft 40 and the second connecting shaft 41. That is to say, the first connecting shaft 40 and the second connecting shaft 41 can respectively adopt transmission shafts, and the transmission shaft can adopt a square shaft, and the cross-sectional shape inside the sleeve 51 corresponds to the cross-sectional shape of the transmission shaft, so as to facilitate the movement of the sleeve 51 on the transmission shaft. Of course, the specific cross-sectional shape of the transmission shaft can be specifically selected according to actual needs. According to one embodiment of the present invention, the bearing 52 can adopt a deep groove ball bearing. The deep groove ball bearing has low friction resistance and high rotation speed, and can withstand radial load, axial load or combined load of radial and axial action at the same time. The elastic member 55 can adopt a spring, which has a simple structure, good elasticity, and is easy to install and operate.

[0059] According to a preferred embodiment of the present invention, see Figure 3 and Figure 5 One end of the bushing 51 facing the second connecting shaft 41 is machined with a guiding portion 511. The guiding portion 511 extends obliquely outward along the axial direction of the bushing 51. By machining the guiding portion 511 at the end of the bushing 51, it is convenient for the connection between the bushing 51 and the second connecting shaft 41.

[0060] According to an embodiment of the present invention, referring to Figures 1 to 5 The folding hoop 100 further includes: a locking mechanism 60. The locking mechanism 60 is installed on the second hoop 20. A locking groove 11 cooperating with the locking mechanism 60 is machined on the first hoop 10. When the second hoop 20 pivots and the sliding member 30 slides to the first position, the first connecting shaft 40 and the second connecting shaft 41 are connected through the connecting assembly 50, and the locking portion 21 locks the sliding member 30. At the same time, the first hoop 10 and the second hoop 20 can be locked on the locking groove 11 through the locking mechanism 60, so as to lock the first hoop 10 and the second hoop 20, ensuring that the structure is more stable after the first to-be-connected member 71 and the second to-be-connected member 72 are connected.

[0061] In some specific embodiments of the present invention, referring to Figures 3 to 5 The locking mechanism 60 is mainly composed of a locking member 61 and a lock catch 62. Among them, the locking member 61 can be used to lock on the locking groove 11. The locking member 61 can adopt a closed-loop elastic steel wire, and is hung on the locking groove 11 through the elastic steel wire. The lock catch 62 is installed on the second hoop 20. The cross-section of the lock catch 62 is in a U shape. The lock catch 62 is movably connected to the locking member 61 to tighten or loosen the locking member 61. Specifically, when the second hoop 20 pivots and pushes the sliding member 30 to the first position, the first connecting shaft 40 and the second connecting shaft 41 are connected through the connecting assembly 50. At this time, one end of the elastic steel wire is hung on the locking groove 11 of the first hoop 10, and the other end of the elastic steel wire is movably connected to the lock catch 62. By rotating the lock catch 62, the elastic steel wire can be tightened, so that the elastic steel wire is pulled in, ensuring that the locking mechanism 60 can lock the first hoop 10 and the second hoop 20. At the same time, if the folding hoop 100 needs to be stored, by rotating the lock catch 62 to loosen the elastic steel wire and releasing the elastic steel wire from the locking groove 11, at this time, by pivoting the second hoop 20, the locking portion 21 unlocks the sliding member 30, and the sliding sleeve releases the second connecting shaft 41, realizing the storage and folding of the first to-be-connected member 71 and the second to-be-connected member 72, which is convenient for storage and saves space.

[0062] In summary, for the folding hoop 100 of the present invention, through the cooperation between the sliding member 30 and the locking portion 21, the locking or unlocking of the sliding member 30 is realized, so as to realize the connection and release of the first connecting shaft 40 and the second connecting shaft 41, and the purpose of connecting or folding the first to-be-connected member 71 and the second to-be-connected member 72 can be achieved.

[0063] The present invention further provides a lawn mower, comprising the folding clamp in the above embodiment. Since the folding clamp according to the embodiment of the present invention has the above technical effects, the lawn mower according to the embodiment of the present invention also has corresponding technical effects, that is, the lawn mower of the present invention adopts the folding clamp 100, and through the cooperation between the sliding member 30 and the locking portion 21, the sliding member 30 can be locked or unlocked, so as to realize the connection and release of the first connecting shaft 40 and the second connecting shaft 41, and the purpose of connecting or folding the first to-be-connected member 71 and the second to-be-connected member 72 can be achieved.

[0064] Other structures and operations of the lawn mower according to the embodiment of the present invention are understandable and easy to implement for those skilled in the art, and thus will not be described in detail.

[0065] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A folding hoop (100) for realizing axial connection and / or folding of a first member to be connected (71) and a second member to be connected (72), wherein the first member to be connected (71) and the second member to be connected (72) are respectively provided with a first transmission shaft (91) and a second transmission shaft (92) which can move along their own axial direction, characterized in that: The folding hoop (100) comprises: A first clamp (10) and a second clamp (20) which are pivotally connected and are used to be fixedly connected to the first to-be-connected member (71) and the second to-be-connected member (72), respectively, and a locking portion (21) is provided on the second clamp (20); The folding hoop (100) further comprises: A first connecting shaft (40) and a second connecting shaft (41) are respectively arranged in the first clamp (10) and the second clamp (20), and are respectively used to be fixedly connected to the first transmission shaft (91) and the second transmission shaft (92); A sliding member (30) is arranged outside the first clamp (10), and the sliding member (30) is slidable along the axial direction of the first clamp (10); the sliding member (30) is a sliding sleeve, and the sliding sleeve is composed of a sliding sleeve body (31) and a pushing body (32); the sliding sleeve body (31) is sleeved on the first clamp (10), and the sliding sleeve body (31) moves along the axial direction of the first clamp (10); The connecting assembly (50) is arranged inside the first hoop (10) and is configured to be linked with the sliding member (30) so that when the connecting assembly (50) slides to the first position along with the sliding member (30), the first transmission shaft (91) and the second transmission shaft (92) are connected and the locking portion (21) cooperates with the sliding member (30) to lock the sliding member (30) so as to realize the axial connection between the first member to be connected (71) and the second member to be connected (72); the connecting assembly (50) includes a sleeve ( 51), which is arranged in the first clamp (10) and is movable on the first connecting shaft (40), the bushing (51) is linked with the sliding member (30), and when the second clamp is pivoted to the first position, the first connecting shaft (40) and the second connecting shaft (41) are connected and the sliding member (30) is locked by the locking portion (21); the first position is the position when the second clamp (20) is pivoted relative to the first clamp (10) to the coaxial position of the first transmission shaft (91) and the second transmission shaft (92).

2. The folding clamp (100) according to claim 1, characterized in that: When the connecting assembly (50) slides to the second position along with the sliding member (30), the locking portion (21) disengages from the sliding member (30), releasing the first transmission shaft (91) and the second transmission shaft (92), so as to achieve the foldability of the first member to be connected (71) and the second member to be connected (72).

3. The folding clamp (100) according to claim 1, characterized in that: The first connecting shaft (40) and the second connecting shaft (41) are transmission shafts, and the end sections of the first connecting shaft (40) and the second connecting shaft (41) are square.

4. The folding clamp (100) according to claim 3, characterized in that: The sleeve body (31) is connected to the connecting assembly (50) via a pin shaft (81); the pushing body (32) is arranged on the outer wall surface of the sleeve body (31); the pushing body (32) extends along the axial direction of the sleeve body (31) and at least a part of it extends out of the sleeve body (31); the locking portion (21) on the second hoop (20) pushes the pushing body (32) to slide along the axial direction of the first hoop (10) when the second hoop (20) pivots; and when the connecting assembly (50) connects the first connecting shaft (40) and the second connecting shaft (41), the pushing body (32) is stopped to achieve locking of the sliding member (30).

5. The folding clamp (100) according to claim 3, characterized in that: The connection assembly (50) further comprises: A bearing (52) is arranged on the shaft sleeve (51); A bearing seat (53) is provided on the bearing (52) to support the bearing (52); A bearing sleeve (54) is disposed on the bearing seat (53) and connected to the sliding member (30); An elastic member (55) has one end abutting against the first to-be-connected member (71) located in the first hoop (10), and the other end abutting against the bearing sleeve (54). When the sliding member (30) slides, the elastic member (55) is compressed by the bearing sleeve (54). When the second hoop (20) pivots to the first position, the first connecting shaft (40) and the second connecting shaft (41) are connected by the shaft sleeve (51), and the sliding member (30) is locked by the locking portion (21).

6. The folding clamp (100) according to claim 5, characterized in that: The bearing (52) is a deep groove ball bearing; and the elastic member (55) is a spring.

7. The folding clamp (100) according to claim 4, characterized in that: A guide portion (511) is provided at one end of the shaft sleeve (51) facing the second connecting shaft (41), and the guide portion (511) extends obliquely outward along the axial direction of the shaft sleeve (51).

8. The folding clamp (100) according to claim 1, characterized in that: The folding hoop (100) further comprises: a locking mechanism (60), wherein the locking mechanism (60) is arranged on the second hoop (20), and the first hoop (10) is provided with a locking groove (11) matching with the locking mechanism (60); when the second hoop (20) is pivoted to the first position, the connecting assembly (50) connects the first connecting shaft (40) and the second connecting shaft (41), and the locking mechanism (60) is locked on the locking groove (11) to lock the first hoop (10) and the second hoop (20).

9. The folding clamp (100) according to claim 8, characterized in that: The locking mechanism (60) comprises: A locking member (61) is used for locking on the locking groove (11), wherein the locking member (61) is a closed-loop elastic steel wire; The lock catch (62) is provided on the second hoop (20). The cross-section of the lock catch (62) is in a U shape. The lock catch (62) is movably connected to the locking member (61) for tightening or loosening the locking member (61).

10. A grass trimmer, characterized in that: Comprising the folding hoop (100) according to any one of claims 1-9.

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