Bicycle front fork folding structure

Abstract

The utility model discloses a bicycle front fork folding structure which comprises a bowl set head tube, a folding vertical tube, a front fork, a bowl set head tube rotating shaft and a detachable connecting rod. The rear side of the bowl set head tube is rotatably connected with a bicycle frame through a bowl set head tube rotating shaft, the upper end of the front fork is connected to the lower end of the bowl set head tube, and the lower end of the front fork is detachably connected with a bicycle front wheel through a detachable connecting rod; one side of the lower end of the folding vertical pipe is rotatably connected with one side of the upper end of the bowl group head pipe through a rotating shaft; and the upper end of the folding vertical pipe is connected with a bicycle handlebar. According to the folding bicycle, the front fork part of the bicycle can be conveniently and quickly folded, so that the folding degree of the folding bicycle is improved, the occupied space of the folded bicycle is further reduced, and the folding bicycle is more convenient to carry and store.

Description

Technical Field

[0001] The utility model relates to the technical field of folding bicycles, in particular to a folding structure of a bicycle front fork. Background Art

[0002] In recent years, bicycles and electric bicycles have become more and more popular due to their environmental and economic advantages. However, traditional bicycles and electric bicycles are large in size and inconvenient to store and carry, so folding bicycles have begun to be popular among consumers. However, current research on the folding structure of bicycles is mostly focused on the handlebars and frames, which is difficult to meet users' needs for folding bicycles that take up little space and are easy to carry. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a folding structure for a bicycle front fork.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A bicycle front fork folding structure comprises a headset head tube, a folding riser, a front fork, a headset head tube rotating shaft and a detachable connecting rod;

[0006] The rear side of the headset head tube is rotatably connected to the bicycle frame through a headset head tube rotation axis, the upper end of the front fork is connected to the lower end of the headset head tube, and the lower end of the front fork is detachably connected to the front wheel of the bicycle through a detachable connecting rod;

[0007] One side of the lower end of the foldable stand pipe is rotatably connected to one side of the upper end of the headset head pipe through a rotating shaft; the upper end of the foldable stand pipe is connected to the handlebar of the bicycle.

[0008] Furthermore, the bicycle front fork folding structure also includes a hand screw, which is threadedly connected to the bicycle frame and can move forward and backward; the hand screw is located at the rear end of the bowl set head tube, and when the bowl set head tube is in an upright state, its front end is against the bowl set head tube.

[0009] Furthermore, the rotating shaft is locked by a locking mechanism.

[0010] Furthermore, the detachable connecting rod adopts a quick-release shaft structure.

[0011] The beneficial effect of the utility model is that the front fork part of the bicycle can be folded conveniently and quickly by using the utility model, thereby improving the folding degree of the folding bicycle and further reducing the space occupied by the folded bicycle, making it more convenient to carry and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the unfolding structure of the bicycle front fork in the embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of the folding structure of the bicycle front fork in the embodiment of the utility model. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that this embodiment is based on the technical solution and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to this embodiment.

[0015] This embodiment provides a bicycle front fork folding structure, such as Figure 1 As shown, it includes a headset head tube 1, a folding seat tube 3, a front fork 4, a headset head tube rotating shaft 6 and a detachable connecting rod 7;

[0016] The rear side of the headset head tube 1 is rotatably connected to the bicycle frame 100 via the headset head tube rotating shaft 6, the upper end of the front fork 4 is connected to the lower end of the headset head tube 1, and the lower end of the front fork 4 is detachably connected to the bicycle front wheel 101 via a detachable connecting rod 7;

[0017] One side of the lower end of the foldable seat tube 3 is rotatably connected to one side of the upper end of the headset head tube 1 through a rotating shaft 8; the upper end of the foldable seat tube 3 is connected to the handlebar of the bicycle.

[0018] In this embodiment, the bicycle front fork folding structure further includes a hand screw 2, which is threadedly connected to the bicycle frame 100 and can move forward and backward; the hand screw 2 is located at the rear end of the headset head tube 1, and when the headset head tube 1 is in an upright state, its front end abuts against the headset head tube 1. The headset head tube 1 can be locked by the hand screw 2 to prevent it from rotating backward when it does not need to be folded, thereby ensuring the structural stability of the front fork structure when in use.

[0019] In this embodiment, the rotating shaft 8 is locked by a locking mechanism 5. The locking mechanism 5 adopts the locking mechanism disclosed in CN210634693U, which will not be described in detail here.

[0020] Specifically, the detachable connecting rod 7 may adopt an existing quick-release shaft structure.

[0021] When in use, first loosen the hand screw 2 backwards so that it no longer presses against the headset head tube 1, and unlock the headset head tube 1. Then remove the detachable connecting rod 7 and remove the front wheel of the bicycle from the front fork 4. Afterwards, release the locking mechanism 5 so that the folding seat tube 3 can be rotated and folded backward along the rotation axis 8. Finally, hold the front fork 4, and rotate the headset head tube and the front fork 4 backwards together with the headset head tube rotation axis 6 as the center, so that the originally tilted front fork becomes vertical, so that the folding structure is more compact. The final folded state is as follows: Figure 2 shown.

[0022] For those skilled in the art, various corresponding changes and modifications can be made according to the above technical solutions and concepts, and all of these changes and modifications should be included in the protection scope of the claims of the utility model.

Claims

1. A bicycle front fork folding structure, characterized in that: It comprises a headset head tube (1), a folding seat tube (3), a front fork (4), a headset head tube rotating shaft (6) and a detachable connecting rod (7); The rear side of the headset head tube (1) is rotatably connected to the bicycle frame (100) via a headset head tube rotating shaft (6); the upper end of the front fork (4) is connected to the lower end of the headset head tube (1); and the lower end of the front fork (4) is detachably connected to the bicycle front wheel (101) via a detachable connecting rod (7); One side of the lower end of the foldable vertical tube (3) is rotatably connected to one side of the upper end of the headset head tube (1) via a rotating shaft (8); the upper end of the foldable vertical tube (3) is connected to a bicycle handlebar.

2. The bicycle front fork folding structure according to claim 1, characterized in that: It also includes a hand screw (2), which is threadedly connected to the bicycle frame (100) and can move forward and backward; the hand screw (2) is located at the rear end of the headset head tube (1), and when the headset head tube (1) is in an upright state, its front end abuts against the headset head tube (1).

3. The bicycle front fork folding structure according to claim 1, characterized in that: The rotating shaft (8) is locked by a locking mechanism (5).

4. The bicycle front fork folding structure according to claim 1, characterized in that: The detachable connecting rod (7) adopts a quick-release shaft structure.

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