CN219312950U

CN219312950U - Folding joint

Info

Publication number: CN219312950U
Application number: CN202320494788.0U
Authority: CN
Inventors: 曹慧; 孔振国
Original assignee: Dongguan Fuhou Bicycle Parts Co ltd
Current assignee: Dongguan Fuhou Bicycle Parts Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-07-07
Anticipated expiration: 2033-03-15

Abstract

The utility model discloses a folding joint which comprises a first joint, a second joint, an eccentric handle assembly and a locking block, wherein the eccentric handle assembly comprises a handle, one side of the first joint, one side of the second joint and the handle are hinged, the eccentric handle assembly is used for driving the locking block to lock or unlock the other side of the first joint and the other side of the second joint, the folding joint further comprises a clamping piece and a reset elastic piece, the clamping piece is embedded on the side wall of the second folding joint, the first folding joint is provided with a clamping piece, the clamping piece is connected with the clamping piece in a clamping way, and the reset elastic piece is used for enabling the clamping piece to move towards the clamping direction of the clamping piece. The folding joint provided by the utility model has good safety.

Description

Folding joint

Technical Field

The utility model relates to the technical field of folding bicycles and folding electric vehicles, in particular to a folding joint used on a folding bicycle and a folding electric vehicle.

Background

The bicycle and the booster bicycle are used as transportation means for leisure activities, become a mode of leisure life gradually, and the folding bicycle is unfolded after reaching a destination by means of the transportation means and starts to enjoy riding.

The folding joint is used as an important structure of the folding bicycle and the folding electric bicycle, and the safety of the folding joint is an important consideration factor of the folding bicycle and the folding electric bicycle. Chinese patent document CN110254583a discloses a folding joint, comprising a self-locking mechanism, an upper folding joint, a lower folding joint and a locking mechanism, wherein the upper folding joint is movably hinged with the lower folding joint, the locking mechanism is used for locking the upper folding joint and the lower folding joint, the self-locking mechanism comprises a handle, one end of the self-locking mechanism is provided with a groove, and the inner wall of the groove is provided with a sliding groove; the eccentric assembly is rotatably arranged in the groove, and a clamping groove is formed in the periphery of the eccentric assembly; the self-locking bolt is arranged in the chute and can slide along the length direction of the chute, the self-locking bolt comprises a locking block and an elastic piece, the locking block is abutted to the periphery of the eccentric assembly, and the elastic piece provides a force for tightly pressing the locking block to the periphery of the eccentric assembly; the handle is rotated, the self-locking bolt rotates along with the handle, and when the self-locking bolt rotates to the clamping groove, the locking block is pushed by the elastic piece to be inserted into the clamping groove, and the handle is locked. The folding joint is locked through the self-locking mechanism, so that the folding joint is prevented from being opened by mistakenly touching the handle, and the safety is improved. However, the locking mechanism does not have a locking trend, and potential safety hazards can be generated when the self-locking mechanism does not work or cannot work.

Disclosure of Invention

The utility model aims to provide a folding joint which is safer.

The technical scheme adopted by the folding joint disclosed by the utility model is as follows:

the utility model provides a folding joint, includes first joint, second joint, eccentric handle subassembly and latch segment, eccentric handle subassembly includes the handle, first joint one side, second joint one side and handle are articulated to be connected, eccentric handle subassembly is used for driving the latch segment with first joint opposite side and second joint opposite side locking or unclamping, still includes the joint piece and resets the elastic component, the joint piece inlays and locates on the lateral wall that the second connects, be equipped with the joint piece on the first joint, joint piece and joint piece joint are connected, it is used for making joint piece to remove with joint piece joint direction to reset the elastic component.

As the preferred scheme, reset elastic component is the reed, one side of joint piece one end is equipped with joint convex part and reed draw-in groove, and the opposite side of the other end is equipped with presses the portion, the middle part of joint piece is equipped with the reaming, the lateral wall of second joint is equipped with the caulking groove, the lateral wall internal surface of second joint is equipped with the reed groove, the joint piece is located the caulking groove of second joint to with second joint hinged joint, the reed is located in the reed groove of second joint, and peg graft in the reed draw-in groove of joint piece.

Preferably, one side surface of the clamping convex part of the clamping sheet is an inclined plane or a smooth cambered surface.

Preferably, the clamping piece on the first connector is provided with a protruding portion, and the protruding portion is connected with the clamping convex portion of the clamping piece in a clamping mode.

Preferably, the clamping piece comprises a clamping rod mounting part and a clamping rod, and the clamping rod is in threaded connection with the clamping rod mounting part.

As the preferred scheme, eccentric handle subassembly still includes eccentric block and ratchet connecting rod, be equipped with the eccentric hole on the eccentric block, ratchet connecting rod one end is equipped with the eccentric block groove, and the other end and latch segment fixed connection, the one end of handle is equipped with eccentric block mounting hole and ratchet groove, the ratchet is located in the ratchet groove to the one end of ratchet connecting rod, the eccentric block is located in the eccentric block mounting hole of handle, the eccentric block cover is located in the eccentric block groove of ratchet connecting rod.

Preferably, the shape of the eccentric block is matched with the shape of an eccentric block mounting hole at one end of the handle, and the eccentric block rotates synchronously with the handle.

As the preferred scheme, folding joint still includes from locking lever, spring and dials the button, the one end of ratchet connecting rod is equipped with from the locked groove, the other end of handle is equipped with dials the button groove, the spring is located with dialling the button and is dialled in the button groove, the other end of handle is located to the one end of auto-lock lever, dialling the button and be used for the drive from the locking lever to insert to locate in the ratchet connecting rod from the locked groove.

The folding joint disclosed by the utility model has the beneficial effects that: the clamping piece is embedded on the side wall of the second connector, the clamping piece on the first connector is connected with the clamping piece in a clamping mode under the action of the reset elastic piece, the first connector and the second connector are conveniently buckled, the locking piece is driven by the eccentric handle assembly to lock the other side of the first connector and the other side of the second connector, and the first connector and the second connector are reliably connected.

Drawings

FIG. 1 is a schematic view of the structure of a folding joint of the present utility model;

FIG. 2 is an exploded view of the folding joint of the present utility model;

fig. 3 is a schematic view of the structure of the first joint and the clamping piece in the folding joint of the utility model.

Detailed Description

The utility model is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:

referring to fig. 1 and 2, a folding joint includes a first joint 10, a second joint 20, an eccentric handle assembly, a locking block 40, a clip piece 51 and a reed 52.

The first joint 10 one side is equipped with first articulated ear, and the opposite side is equipped with first joint groove, first joint 10 terminal surface is equipped with the joint spare, joint spare on the first joint 10 is equipped with the protruding portion, protruding portion end is the shaft-like structure, shaft-like structure inlay locate on the joint spare or with joint spare integrated into one piece, be equipped with first hinge hole on the first articulated ear. Referring to fig. 3, the clip comprises a clip mounting portion 11 and a clip 12, wherein the clip 12 is screwed into the clip mounting portion 11, and the protruding length of the clip 12 is adjusted by adjusting the position of the clip 12 in the clip mounting portion 11.

The second connector 20 is provided with a second hinge lug on one side and a second clamping groove on the other side, the side wall of the second connector 20 is provided with a caulking groove 21, and the inner surface of the side wall of the second connector is provided with a reed groove 22.

Referring to fig. 3, one side of one end of the clamping piece 51 is provided with a clamping protrusion 511, a reed clamping groove 512 and a clamping rod accommodating groove 515, one side surface of the clamping protrusion 511 is an inclined surface or a smooth cambered surface, the other side of the other end is provided with a pressing portion 513, the middle of the clamping piece 51 is provided with a hinge hole 514, the clamping piece 51 is arranged in the caulking groove 21 of the second connector 20 and is hinged with the second connector 20 through a hinge shaft passing through the hinge hole 514 on the clamping piece 51, and the reed 52 is arranged in the reed groove 22 of the second connector 20 and is inserted into the reed clamping groove 512 of the clamping piece 51. Under the action of the reed 52, the clamping convex part 511 at one end of the clamping piece 51 moves towards the inside of the second connector 20, and when the clamping rod 12 slides over the surface of the clamping convex part 511, the clamping rod 12 is placed in the clamping rod accommodating groove 515, so that the clamping piece on the first connector 10 is in clamping connection with the clamping piece 51.

The eccentric handle assembly comprises a handle 41, an eccentric block 42, a ratchet connecting rod, a self-locking rod 44, a spring and a poking button 413, please refer to fig. 2, one end of the handle 41 is provided with an eccentric block mounting hole 411 and a ratchet groove 412, the other end of the handle 41 is provided with a poking button groove, the spring and the poking button 413 are arranged in the poking button groove, one end of the self-locking rod is fixed on the poking button 413, the spring is used for enabling the poking button 413 to move towards the second joint 20, the eccentric block 42 is provided with an eccentric hole, the eccentric block 42 is non-cylindrical, the ratchet connecting rod comprises a ratchet 431 and a connecting rod 432, one end of the connecting rod is fixedly connected with the ratchet 431, the other end of the connecting rod is fixedly connected with the locking block 40, the ratchet 431 is provided with an eccentric block groove and a self-locking groove, the ratchet 431 is arranged in the ratchet groove at one end of the ratchet 431, the eccentric block 42 is arranged in the eccentric block mounting hole of the handle 41, and the shape of the eccentric block mounting hole is matched with the shape of the eccentric block 42, and when the handle 41 rotates, the handle 41 drives the eccentric block 42 to rotate towards the second joint 20, and the eccentric block 42 is driven by the eccentric block 42 and the ratchet connecting rod is in the same direction as the eccentric block 41 or the first joint 40 and the eccentric block is connected with the eccentric block 40 in the transverse joint 20.

The first connector 10, the second connector 20 and the handle 41 are hinged through the hinge shaft 60, the first connector 10 is rotated to enable the first connector 10 to be attached to the second connector 20, the protruding portion on the clamping piece on the first connector 10 pushes the clamping protruding portion on the upper portion of the clamping piece 51 on the second connector, the elastic force of the reed 52 is overcome, after the protruding portion on the clamping piece is avoided, the clamping protruding portion on the clamping piece 51 rebounds under the action of the reed 52, the clamping protruding portion is connected with the protruding portion in a clamping mode, connection of the first connector 10 and the second connector 20 is easy to achieve, the handle 41 is rotated, the locking block 40 is driven by the eccentric handle assembly to fixedly connect the first connector 10 and the second connector 20, connection reliability of the first connector 10 and the second connector 20 is improved, the handle 41 is prevented from rotating, the spring-driven self-locking rod 44 is inserted into the self-locking groove on the ratchet wheel 431, self-locking of the handle 41 cannot be rotated, and safety is improved. When the locking device is opened, the pulling button is pushed to enable the self-locking rod 44 to be separated from the self-locking groove on the ratchet 431, the handle 41 is rotated to enable the locking block 40 to be separated from the first clamping groove on the first connector 10 and the second clamping groove on the second connector 20, the pressing part of the clamping piece 51 is pressed down, the elastic force of the reed 52 is overcome, the first connector 10 is rotated to enable the protruding part on the clamping piece of the first connector 10 to be separated from the clamping protruding part on the upper part of the clamping piece 51, and the separation of the first connector 10 and the second connector 20 is achieved. In this embodiment, the clamping member includes a clamping rod mounting portion 11 and a clamping rod 12, and the clamping connection force between the clamping member and the clamping piece 51 is adjusted by using the position of the clamping rod 12 at the clamping rod mounting portion 11 and the elasticity of the reed 52.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides a folding joint, includes first joint, second joint, eccentric handle subassembly and latch segment, eccentric handle subassembly includes the handle, first joint one side, second joint one side and handle are articulated to be connected, eccentric handle subassembly is used for driving the latch segment with first joint opposite side and second joint opposite side locking or unclamping, its characterized in that still includes the joint piece and resets the elastic component, the joint piece inlays and locates on the lateral wall that the second connects, be equipped with the joint spare on the first joint, the joint piece is connected with joint spare joint, it is used for making joint piece to remove with joint spare joint direction to reset the elastic component.

2. The folding joint according to claim 1, wherein the reset elastic member is a reed, one side of one end of the clamping piece is provided with a clamping convex part and a reed clamping groove, the other side of the other end of the clamping piece is provided with a pressing part, the middle part of the clamping piece is provided with a reaming hole, the side wall of the second joint is provided with a caulking groove, the inner surface of the side wall of the second joint is provided with a reed groove, the clamping piece is arranged in the caulking groove of the second joint and is hinged with the second joint, and the reed is arranged in the reed groove of the second joint and is spliced in the reed clamping groove of the clamping piece.

3. The folding joint of claim 2, wherein a side surface of the engaging protrusion of the engaging piece is a slant surface or a smooth cambered surface.

4. A folding joint as claimed in claim 2 or 3, wherein the engagement member on the first joint is provided with a projection which is in engagement with the engagement projection of the engagement piece.

5. The folding joint of claim 4 wherein the clip includes a clip mounting portion and a clip threaded into the clip mounting portion.

6. A folding joint according to any one of claims 1 to 3 wherein the eccentric handle assembly further comprises an eccentric block and a ratchet link, the eccentric block is provided with an eccentric hole, one end of the ratchet link is provided with an eccentric block groove, the other end is fixedly connected with the locking block, one end of the handle is provided with an eccentric block mounting hole and a ratchet groove, one end of the ratchet link is arranged in the ratchet groove, the eccentric block is arranged in the eccentric block mounting hole of the handle, and the eccentric block is sleeved in the eccentric block groove of the ratchet link.

7. The folding joint of claim 6 wherein the eccentric mass is shaped to mate with the shape of an eccentric mass mounting hole in one end of the handle, the eccentric mass rotating in synchronization with the handle.

8. The folding joint of claim 7, further comprising a self-locking lever, a spring and a toggle button, wherein the self-locking slot is formed at one end of the ratchet connecting rod, the toggle button slot is formed at the other end of the handle, the spring and the toggle button are arranged in the toggle button slot, one end of the self-locking lever is arranged at the other end of the handle, and the toggle button is used for driving the self-locking lever to be inserted into the self-locking slot of the ratchet connecting rod.