CN210101896U

CN210101896U - Bicycle folding mechanism

Info

Publication number: CN210101896U
Application number: CN201920922206.8U
Authority: CN
Inventors: 朱梦; 吴俊�; 陆其兵; 周奇
Original assignee: Changzhou Hongji Two Wheeled Intelligent Transportation Co Ltd
Current assignee: Changzhou Hongji Two Wheeled Intelligent Transportation Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-02-21
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a bicycle folding mechanism, which comprises a first body, a second body and a lock body; wherein, the first body is provided with a lock catch part; the second body is rotatably mounted relative to the first body; the lock body is fixedly arranged on the second body and matched with the lock catch part for use, so that the first body and the second body are relatively fixed. The utility model discloses a bicycle folding mechanism through set up hasp portion and lock body on first body and second body respectively, can make first body and second body both switch between lock solid state and two kinds of states of relative rotation state, when needs switch to the relative rotation state from the lock solid state, need remove the locking of lock body, does not miss and bumps and open danger, and the security is high, and simple structure, and is with low costs.

Description

Bicycle folding mechanism

Technical Field

The utility model relates to a bicycle technical field especially relates to a bicycle folding mechanism.

Background

Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. After a person rides the vehicle, the person steps on the pedal as power, and the vehicle is a green and environment-friendly vehicle.

The volume of general bicycle is great, and is not portable, has consequently appeared the bicycle of this form of folding bicycle, and after the bicycle is folded, its length becomes about half under the unfolded state, and the portability has obtained great promotion, like folding bicycle can fill in vapour car trunk or narrower storing room etc. consequently to the people who has the demand to the portability or accomodate, folding bicycle can satisfy its user demand betterly.

The folding mechanism of the existing folding bicycle on the market is generally provided with a quick-release handle to realize the relative fixation of two parts of bicycle bodies and the switching of the relative rotation of the two parts of bicycle bodies, the structure is more complex and has high cost, the folding bicycle is easy to be mistakenly touched and opened in use, and the safety is poor.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a bicycle folding mechanism with simple structure and high safety.

The technical scheme is as follows: in order to achieve the above object, the utility model discloses a bicycle folding mechanism, include:

a first body having a locking part thereon;

a second body rotatably mounted with respect to the first body; and

the lock body is fixedly arranged on the second body and matched with the lock catch part for use so that the first body and the second body are relatively fixed.

Further, the locking part is a bolt hole formed on the first body; the lock body is provided with a telescopic bolt part which can pass in and out of the bolt hole.

Further, the first body and the second body are both hollow structures; the lock body is installed at the inner side of the second body.

Furthermore, an extension part is formed on one side wall of the first body, and the locking part is formed on the extension part; a notch is formed on the side wall of the second body;

when the first body and the second body are in a fixed state, the extension part is embedded in the notch.

Furthermore, the first body and the second body are both square tube bodies, the first body is provided with a first hinge part, and the first hinge part and the extension part are respectively formed on two opposite side surfaces of the first body; correspondingly, the second body is provided with a second hinge part, and the second hinge part and the notch are respectively formed on two opposite side surfaces of the second body.

Furthermore, the lock body further comprises a lock seat and a rotating part which can rotate relative to the lock seat, and the rotating part can drive the telescopic bolt part to stretch relative to the lock seat.

Furthermore, the rotating part is a lock cylinder with a lock hole.

Further, the relative rotation axis of the first body and the second body is obliquely arranged.

Has the advantages that: the utility model discloses a bicycle folding mechanism through set up hasp portion and lock body on first body and second body respectively, can make first body and second body both switch between lock solid state and two kinds of states of relative rotation state, when needs switch to the relative rotation state from the lock solid state, need remove the locking of lock body, does not miss and bumps and open danger, and the security is high, and simple structure, and is with low costs.

Drawings

FIG. 1 is a structural view of a bicycle folding mechanism;

FIG. 2 is a structural view of the bicycle folding mechanism in a relatively unfolded state;

fig. 3 is a structural diagram of a frame using the folding mechanism of the present invention.

The names of the parts indicated by the reference numerals in the drawings are as follows:

1-a first body; 11-a locking part; 12-an extension; 13-a first hinge; 2-a second body; 21-a gap; 22-a second hinge; 3-a lock body; 31-a telescoping dowel part; 32-a lock seat; 33-rotating part.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The bicycle folding mechanism shown in fig. 1 and 2 comprises a first body 1, a second body 2 and a lock body 3: wherein the first body 1 is provided with a locking part 11; the second body 2 is mounted in rotation with respect to said first body 1; the lock body 3 is fixedly mounted on the second body 2, and the lock body is matched with the locking part 11 to fix the first body 1 and the second body 2 relatively.

The folding mechanism of the bicycle is generally used for a frame of the bicycle, in one embodiment, the first body 1 and the second body 2 can be two independent parts independent from the frame, and the first body 1 and the second body 2 are respectively fixedly installed on a front half part and a rear half part of the bicycle to realize that the two parts of the bicycle can be folded relatively; in another embodiment, the first body 1 and the second body 2 may be two parts of the frame itself, i.e. the frame itself is composed of two parts (i.e. the first body 1 and the second body 2), and the two parts can be folded or fixed relatively to each other, as shown in fig. 3, which is the latter case.

In this embodiment, the locking part 11 is a pin hole formed on the first body 1; the lock body 3 is composed of a telescopic plug pin part 31, a lock seat 32 and a rotating part 33, wherein the telescopic plug pin part 31 can be telescopic relative to the lock seat 32, so that the telescopic plug pin part 31 can enter and exit from the plug pin hole under the condition that the first body 1 and the second body 2 are in a straight line, and the locking and unlocking states of the first body 1 and the second body 2 are realized. The rotation part 33 can rotate relative to the lock base 32, and the rotation movement can be linked with the movement of the telescopic plug pin part 31, so that a user can control the telescopic movement of the telescopic plug pin part 31 by rotating the rotation part 33, and locking and unlocking are realized.

In a preferred embodiment, the rotating part 33 is a lock cylinder with a lock hole, and a user needs to rotate the rotating part 33 by means of a special key, so that the danger caused by mistaken touching of the rotating part 33 in the process of using the bicycle by the user can be effectively prevented, and the bicycle can be prevented from being stolen to a certain extent.

Further, the first body 1 and the second body 2 are both hollow structures; the lock body 3 is installed inside the second body 2. Like this, can play to hide about better to lock body 3, make it also be difficult for colliding with the damage when can not influencing the outward appearance, the key hole exposes outside second body 2 on the lock body 3 in order to conveniently insert the key.

An extension 12 is formed on one side wall of the first body 1, and the locking part 11 is formed on the extension 12; a notch 21 is formed on the side wall of the second body 2; when the first body 1 and the second body 2 are in a fixed state, the extension part 12 is embedded in the gap 21. The first body 1 and the second body 2 are both square tube bodies, the first body 1 is provided with a first hinge part 13, and the first hinge part 13 and the extension part 12 are respectively formed on two opposite side surfaces of the first body 1; correspondingly, the second body 2 is provided with a second hinge part 22, and the second hinge part 22 and the gap 21 are respectively formed on two opposite side surfaces of the second body 2; the first body 1 and the second body 2 are rotatably mounted through the connection of the first hinge part 13 and the second hinge part 22. By adopting the structure, on one hand, the lock body 3 is convenient to be matched with the lock catch part 11 for use, and on the other hand, because the extension part 12 is embedded in the notch 21, the first body 1 and the second body 2 can be prevented from moving relatively along the axial direction of the relative rotating shafts of the first body and the second body, the hinged parts of the first body and the second body are protected, and the two sides of the two bodies are stressed symmetrically instead of the hinged parts.

Since the structural members of the portion of the frame on which the folding mechanism is disposed are generally not horizontally disposed (such as the frame shown in fig. 3), in some frames, the relative rotational axes of the first body 1 and the second body 2 are disposed obliquely so that the bicycle can be folded along an approximately vertical rotational axis.

In a preferred embodiment, the telescopic plug pin portion 31 is elastically connected with the lock seat 32, and the telescopic plug pin portion 31 is always in an extended state without external force, so that after the folding mechanism is unfolded from the folded state (as shown in fig. 2) to enable the first body 1 and the second body 2 to be in a line, the telescopic plug pin portion 31 can automatically enter the plug pin hole to achieve locking, and thus, only when the bicycle is folded, a key is needed to enable the lock body 1 to be unlocked, so that the use frequency of the key can be reduced, unnecessary use troubles can be avoided, and the bicycle can be switched to a usable state at least without the key. Since there are many locks of this type on the market, the specific structure of the lock body 1 is not described here.

The utility model discloses a bicycle folding mechanism through set up hasp portion and lock body on first body and second body respectively, can make first body and second body both switch between lock solid state and two kinds of states of relative rotation state, when needs switch to the relative rotation state from the lock solid state, need remove the locking of lock body, does not miss and bumps and open danger, and the security is high, and simple structure, and is with low costs.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A bicycle folding mechanism, comprising:

a first body (1) having a locking portion (11) thereon;

a second body (2) rotatably mounted with respect to the first body (1); and

and the lock body (3) is fixedly arranged on the second body (2), and can be matched with the lock catch part (11) to ensure that the first body (1) and the second body (2) are relatively fixed.

2. The bicycle folding mechanism according to claim 1, characterized in that said locking portion (11) is a bolt hole formed on said first body (1); the lock body (3) is provided with a telescopic bolt part (31) which can enter and exit the bolt hole.

3. The bicycle folding mechanism according to claim 1, characterized in that said first body (1) and second body (2) are both hollow; the lock body (3) is mounted on the inner side of the second body (2).

4. The bicycle folding mechanism according to claim 3, characterized in that an extension (12) is formed on one side wall of the first body (1), the locking portion (11) being formed on the extension (12); a notch (21) is formed on the side wall of the second body (2);

when the first body (1) and the second body (2) are in a fixed state, the extension part (12) is embedded in the gap (21).

5. The bicycle folding mechanism according to claim 4, characterized in that said first body (1) and said second body (2) are both a square tube, the first body (1) having a first articulated portion (13), said first articulated portion (13) and said extension portion (12) being respectively formed on two opposite sides of said first body (1); correspondingly, the second body (2) is provided with a second hinge part (22), and the second hinge part (22) and the notch (21) are respectively formed on two opposite side surfaces of the second body (2).

6. The bicycle folding mechanism according to claim 2, characterized in that the lock body (3) further comprises a lock base (32) and a rotating part (33) rotatable relative to the lock base (32), wherein the rotation of the rotating part (33) causes the telescopic plug pin part (31) to telescope relative to the lock base (32).

7. Bicycle folding mechanism according to claim 6, characterized in that the turning part (33) is a key cylinder with a lock hole.

8. Bicycle folding mechanism according to claim 1, characterized in that the relative axes of rotation of the first body (1) and the second body (2) are arranged obliquely.