CN214356474U

CN214356474U - Folding fixing mechanism

Info

Publication number: CN214356474U
Application number: CN202022998866.XU
Authority: CN
Inventors: 文讯; 颜兵; 蒋和平
Original assignee: Dongguan Kaisheng Bicycle Co ltd
Current assignee: Dongguan Kaisheng Bicycle Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-10-08
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a folding fixed establishment, including first folding joint, the folding joint of second and handle, one side of first folding joint is articulated with one side of the folding joint of second, the one end of handle articulates in the opposite side of first folding joint, the handle is used for being fixed in the folding joint of second on first folding joint, the handle other end is equipped with the convex part, be equipped with the concave part on the folding joint of second, convex part on the handle and the concave part on the folding joint of second correspond, the concave part on the folding joint of second has two relative faces and the two relative face butts of convex part on the handle at least. The utility model discloses a folding fixed establishment, the joint is reliable, is difficult for breaking away from, and intensity is higher.

Description

Folding fixing mechanism

Technical Field

The utility model relates to a folding car technical field, specifically speaking relates to a folding fixed establishment for folding bicycle or scooter, especially is used for the folding fixed establishment of scooter riser.

Background

The folding scooter is light and handy, and is small after folding, and the trip is convenient, receives liking of teenagers and friends deeply. The folding mechanism is opened, the buckle on the stand pipe is buckled after the stand pipe is folded and preset on a pedal or a wheel assembly, the folding slide plate is lifted up through the stand pipe, and when the folding slide plate is unfolded, the buckle needs to be loosened, so that the folding slide plate is slightly complicated.

Chinese patent document CN210364210U discloses a folding mechanism and folding electric scooter, the recess is seted up at the handle end, after loosening folding mechanism, the lateral wall of the folding joint on riser upper portion is buckled to the handle, lifts the riser and carries electric scooter, because be equipped with the recess on the handle, can reduce the intensity of handle, in addition, because the user holds the riser, the riser can jolt when walking about, has the risk that the convex part on the riser breaks away from with the recess on the handle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding fixed establishment who is difficult for breaking away from.

The utility model discloses a technical scheme that folding fixed establishment adopted is:

the utility model provides a folding fixed establishment, includes first folding joint, second folding joint and handle, one side of first folding joint is articulated with one side of second folding joint, the one end of handle articulates in the opposite side of first folding joint, the handle is used for being fixed in on the first folding joint with second folding joint, the handle other end is equipped with the convex part, be equipped with the concave part on the second folding joint, the convex part on the handle corresponds with the concave part on the second folding joint, the concave part on the second folding joint has two relative faces at least and the two relative facial features butt of convex part on the handle.

Preferably, a torsion spring is arranged at the hinged position of one end of the handle and the other side of the first folding joint and used for enabling the handle to rotate towards the direction that the second folding joint is close to.

Preferably, the convex portion has a first surface and a second surface which are opposed to each other, the concave portion has a third surface and a fourth surface which are opposed to each other, and when the convex portion of the handle is provided in the concave portion of the second folding joint, the first surface of the convex portion abuts against or approaches the third surface of the concave portion, and the second surface of the convex portion abuts against or approaches the fourth surface of the concave portion.

Preferably, the convex portion is a rectangular parallelepiped, and the first surface and the second surface of the convex portion, and the third surface and the fourth surface of the concave portion are both flat surfaces.

Preferably, the first surface and the second surface of the convex portion and the third surface and the fourth surface of the concave portion are arc-shaped surfaces.

The utility model discloses a folding fixed establishment's beneficial effect is: after the first folding joint and the second folding joint are unfolded, the handle rotates around one end, when the convex part of the handle rotates into the concave part on the second folding joint, the upper part of the stand pipe is lifted, the trend of relative rotation of the first folding joint and the second folding joint is realized, one surface of the convex part of the handle is enabled to be propped against one surface of the concave part of the second folding joint, the first folding joint and the second folding joint are relatively fixed, the whole vehicle is lifted together, when the bumping process of the stand pipe is lifted, the other surface, opposite to the convex part, of the handle is propped against the other surface, opposite to the concave part, of the second folding joint, the handle rotates around one end of the handle, and as long as the handle is not rotated, the convex part on the handle of the folding fixing mechanism is not easy to separate from the concave part on the second folding joint.

Drawings

FIG. 1 is a schematic structural view of the folding fixing mechanism of the present invention in an unfolded and fixed state;

fig. 2 is an explosion structure diagram of the folding fixing mechanism of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1 and 2, a folding fixing mechanism includes a first folding joint 10, a second folding joint 20 and a handle 30, wherein one side of the first folding joint 10 is hinged to one side of the second folding joint 20 through a hinge shaft 40, one end of the handle 30 is hinged to the other side of the first folding joint 10 through a hinge shaft 50, and a torsion spring, not shown, is sleeved on the hinge shaft 50 and is used for rotating the handle 30 towards the direction that the second folding joint 20 approaches.

The other end of the handle 30 is provided with a convex portion 31, the convex portion 31 is provided with a first surface 31 and a second surface 312 which are opposite, the second folding joint 20 is provided with a concave portion 21, the concave portion 21 is provided with a third surface 311 and a fourth surface 312 which are opposite, the convex portion 31 on the handle 30 corresponds to the concave portion 21 on the second folding joint 20, the handle 30 is loosened, the first folding joint 10 and the second folding joint are unfolded, the handle 30 is rotated, when the convex portion 31 of the handle 30 is clamped in the concave portion 21 of the second folding joint 20, the first surface 311 of the convex portion 31 is abutted against or close to the third surface 211 of the concave portion 21, the second surface 312 of the convex portion 31 is abutted against or close to the fourth surface 212 of the concave portion 21, namely, the distance between the convex portion 31 and the concave portion 21 cannot be too large.

In this embodiment, the convex portion 31 of the handle 30 is a rectangular parallelepiped, and the first surface 311 and the second surface 312 of the convex portion 31 and the third surface 211 and the fourth surface 212 of the concave portion 21 are both flat surfaces.

In the embodiment, the first folding joint 10 is arranged on the front tube of the folding bicycle, the second folding joint 20 is respectively arranged on the upper end of the stand tube, the first folding joint 10 and the second folding joint 20 are loosened, the handle 30 rotates around one end, when the convex part 31 of the handle 30 rotates into the concave part 21 on the second folding joint 20, the upper part of the stand tube is lifted, the first folding joint 10 and the second folding joint 20 have relative rotation tendency, so that the first surface 311 of the convex part 31 of the handle 30 is pressed against the third surface 211 on the concave part 21 of the second folding joint 20, the first folding joint 10 and the second folding joint 20 are prevented from moving relatively to one direction, thereby the whole bicycle can be lifted together, when the upper end of the stand tube is lifted up and bumped, the second surface 312 of the convex part 31 of the handle 30 is pressed against the fourth surface 212 of the concave part 21 of the second folding joint 20, the first folding joint 10 and the second folding joint 20 are prevented from moving relatively to the other opposite direction, because the distance between the convex portion 31 and the concave portion 21 is small, the handle 30 can only rotate around one end of the handle 30, and the convex portion 31 of the handle 30 cannot be separated from the concave portion 21 of the second folding joint 20 without rotating the handle 30, so that the positions of the upper end of the stand pipe and the front pipe of the folding bicycle are relatively fixed, the whole bicycle can be lifted when the stand pipe is lifted, and the convex portion 31 on the handle 30 of the folding fixing mechanism and the concave portion 21 on the second folding joint 20 are not easy to separate as long as the handle 30 is not rotated. The projection 31 increases the strength of the handle 30 and provides better rigidity.

Preferably, the first surface and the second surface of the convex part and the third surface and the fourth surface of the concave part are arc-shaped surfaces, so that the contact area of the contact surface is increased, the pressure of the contact surface is reduced, and the service life is longer.

When the folding fixing mechanism is used for folding the scooter, the first folding joint and the second folding joint are respectively arranged at the upper end and the lower end of the vertical pipe, and the first folding joint is arranged at the upper end or the lower end of the vertical pipe, so that the implementation is not influenced.

The utility model discloses an invention point lies in first folding joint 10, second folding joint 20 and utilizes handle 30 to carry out the structure of relatively fixed in the expansion state, not folding locking mechanism between first folding joint 10, second folding joint 20 and handle, and folding locking mechanism's mode is many between first folding joint 10, second folding joint 20 and the handle, for example interior V locking mechanism and other ejector pin locking mechanism that chinese document CN1406808A disclosed, as long as the utility model discloses an invention point can be used on it can, so the utility model discloses folding locking mechanism is not repeated here.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The folding fixing mechanism is characterized in that a convex part is arranged at the other end of the handle, a concave part is arranged on the second folding joint, the convex part on the handle corresponds to the concave part on the second folding joint, and at least two opposite surfaces of the concave part on the second folding joint are abutted to two opposite surfaces of the convex part on the handle.

2. The folding fastening mechanism of claim 1, wherein a torsion spring is provided at a hinge of one end of the handle to the other side of the first folding joint, and the torsion spring is used for rotating the handle in a direction to approach the second folding joint.

3. The fold anchor mechanism of claim 1 or 2, wherein the male portion has first and second opposing faces, and the female portion has third and fourth opposing faces, and wherein when the male portion of the handle is disposed in the female portion of the second folding joint, the first face of the male portion abuts or is adjacent to the third face of the female portion, and the second face of the male portion abuts or is adjacent to the fourth face of the female portion.

4. A fold fixation mechanism as claimed in claim 3, wherein the protrusion is a cuboid, and the first and second faces of the protrusion and the third and fourth faces of the recess are planar.

5. The fold fixation mechanism of claim 3 wherein the first and second faces on the male portion and the third and fourth faces on the female portion are arcuate.