WO2023216320A1

WO2023216320A1 - Handlebar connecting structure

Info

Publication number: WO2023216320A1
Application number: PCT/CN2022/094921
Authority: WO
Inventors: 王景山
Original assignee: 厦门鸿基伟业复材科技有限公司
Priority date: 2022-05-13
Filing date: 2022-05-25
Publication date: 2023-11-16

Abstract

Disclosed in the present invention is a handlebar connecting structure. The handlebar connecting structure comprises a handlebar, a front fork, and a headset; a connecting opening is formed on the handlebar; the front fork comprises a connecting pipe located at a top end and used for being inserted into the connecting opening; the cross section of the connecting pipe and the cross section of the connecting opening both are of a polygonal structure and are matched with each other; an expansion opening is formed at the top end of the pipe wall of the connecting pipe in an axial direction; and the headset is arranged in a pipe cavity of the connecting pipe. According to the handlebar connecting structure, the cross section of the connecting opening of the handlebar and the cross section of a front fork connecting pipe used for being inserted into the connecting opening both are of the polygonal structure and are matched with each other, so that the connecting pipe cannot rotate in the connecting opening; moreover, the headset is rotatably arranged in the connecting pipe, the outer diameter of the headset is increased so as to push the pipe wall of the connecting pipe to expand outwards, and the outer wall of the expanded connecting pipe is tightly attached to the inner wall of the connecting opening of the handlebar, so that the connecting pipe and the connecting opening are fixedly and stably connected, thereby preventing the handlebar and the front fork from deflecting in a circumferential direction, and ensuring the steering accuracy of the handlebar.

Description

A handlebar connection structure

Technical field

The invention relates to the technical field of handlebars, and in particular to a handlebar connection structure.

Background technique

Currently, the handlebars on the market are generally connected in a fastening manner. A lower cover is provided on the handlebar riser, and the upper cover is used to sandwich the handlebar cross tube between the upper cover and the lower cover. Use bolts to securely connect both sides of the upper cover to both sides of the lower cover to connect the handlebar to the front fork. Since the handlebar needs to rotate constantly during riding, this connection method will take a long time. If it is long, the bolts will easily loosen, and the handlebar and front fork will deflect in the circumferential direction, reducing the steering accuracy of the handlebar.

Contents of the invention

The object of the present invention is to provide a handlebar connection structure. The cross-sections of the handlebar connection port and the front fork connection tube for inserting in the connection port both have a polygonal structure and are adapted to each other, so that the connection tube is connected The mouth cannot rotate. At the same time, the bowl set installed in the connecting pipe is rotated. The outer diameter of the bowl set expands and pushes the wall of the connecting pipe to expand outward. The expanded outer wall of the connecting pipe closely fits the inner wall of the connecting port of the handlebar, so that the two Fixed connection, stable connection, preventing the handlebar and front fork from deflecting in the circumferential direction, ensuring the steering accuracy of the handlebar.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A handlebar connection structure includes a handlebar, a front fork and a headset. The handlebar is provided with a connection port. The front fork includes a connection tube at the top for inserting into the connection port. The transverse direction of the connection tube is The cross-section and the cross-section of the connecting port are both polygonal structures and are compatible with each other. The top of the wall of the connecting pipe is provided with an expansion port along the axial direction, and the bowl set is arranged in the lumen of the connecting pipe.

Preferably, the polygonal structure is a regular hexagonal structure or a regular quadrilateral structure.

Preferably, the expansion port includes two groups and is symmetrically arranged on the wall of the connecting pipe.

Preferably, the expansion port includes a circular part and a rectangular part from bottom to top in the axial direction, and the rectangular part extends to the top of the connecting pipe.

Preferably, the diameter of the rectangular part is smaller than the diameter of the circular part.

Preferably, the depth of the expansion port is not less than the depth of the connection port.

Preferably, the front fork further includes a front fork tube located at the bottom end, the front fork tube has a circular cross-section, and the front fork tube and the connecting tube are connected through a connecting tube.

Preferably, the connecting pipe, adapter pipe and front fork pipe are an integrally formed structure.

Preferably, it also includes an outer tube, which is located below the connection port and movably sleeved on the outside of the front fork.

Preferably, the handlebar, front fork and outer tube are all made of carbon fiber composite material.

After adopting the above technical solution, compared with the background technology, the present invention has the following advantages:

The present invention relates to a handlebar connection structure. The cross-sections of the handlebar connection port and the front fork connection tube used to be inserted into the connection port are both polygonal structures and are compatible with each other. Since both are polygonal structures, the connection The pipe cannot rotate in the connecting port. At the same time, expansion ports are opened along the axial direction at the tops of the pipe walls on both sides of the connecting pipe. By rotating the bowl set installed in the connecting pipe, the outer diameter of the bowl set expands and pushes the wall of the connecting pipe to expand outward. , the outer wall of the expanded connecting tube closely fits the inner wall of the handlebar's connecting port, thereby firmly connecting the two. This connection method is stable and easy to install and disassemble. The connecting tube cannot rotate in the connecting port, which can effectively prevent the handlebar from being connected with the handlebar. The front fork will deflect in the circumferential direction to ensure the steering accuracy of the handlebar.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is an exploded view of the structure of the present invention;

Figure 3 is a schematic structural diagram of the front fork of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

It should be noted in the present invention that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and only It is intended to facilitate the description of the present invention and simplify the description, but does not indicate or imply that the devices or components of the present invention must have a specific orientation, and therefore cannot be construed as a limitation of the present invention.

Example

Please refer to Figures 1 to 3. The present invention discloses a handlebar connection structure, which includes a handlebar 1, a front fork 2 and a headset 3. The handlebar 1 is provided with a connection port 11, and the front fork 2 includes a handlebar located at the top. When the connecting pipe 21 is inserted into the connecting port 11, the cross-section of the connecting pipe 21 and the cross-section of the connecting port 11 are polygonal structures and they match. Since both are polygonal structures, the connecting pipe 21 is in the connecting port 11. It cannot rotate. The top of the wall of the connecting pipe 21 is provided with an expansion port 211 along the axial direction. The headset 3 is arranged in the cavity of the connecting pipe 21 to tightly connect the handlebar 1 and the front fork 2. The minimum outer diameter of the headset 3 is The diameter matches the inner diameter of the connecting pipe 21.

The polygonal structure is a regular hexagonal structure or a regular quadrilateral structure. This embodiment adopts a regular hexagonal structure.

The expansion port 211 includes two groups and is symmetrically arranged on the wall of the connecting pipe 21 . The expansion port 211 includes a circular part 2111 and a rectangular part 2112 from bottom to top in the axial direction, and the rectangular part 2112 extends to the top of the connecting pipe 21 . The diameter of the rectangular portion 2112 is smaller than the diameter of the circular portion 2111 .

The depth of the expansion port 211 is not less than the depth of the connection port 11 , so that the wall of the connection pipe 21 can better adhere to the inner wall of the connection port 11 . During use, by rotating the bowl set 3 installed in the connecting pipe 21, the outer diameter of the bowl set 3 expands and pushes the wall of the connecting pipe 21 to expand outward. The expanded outer wall of the connecting pipe 21 is in close contact with the inner wall of the connecting port 11 of the handlebar 1. combined, thereby firmly connecting the two,

The front fork 2 also includes a front fork tube 22 located at the bottom end. The front fork tube 22 has a circular cross-section. The front fork tube 22 and the connecting tube 21 are connected by a connecting tube 23 . The connecting pipe 21, the connecting pipe 23 and the front fork pipe 22 are integrally formed structures.

It also includes an outer tube 4. The outer tube 4 is located below the connection port 11 and is movably sleeved on the outside of the front fork 2 to protect the front fork 2.

The handlebar 1, front fork 2 and outer tube 4 are all made of carbon fiber composite material.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of changes or modifications within the technical scope disclosed in the present invention. All substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A handlebar connection structure, characterized by: including a handlebar, a front fork and a headset, the handlebar is provided with a connection port, the front fork includes a connecting pipe at the top for inserting into the connection port, the The cross-section of the connecting pipe and the cross-section of the connecting port are both polygonal structures and are compatible with each other. The top of the wall of the connecting pipe is provided with an expansion port along the axial direction, and the bowl set is arranged on the connecting pipe. lumen.
The handlebar connection structure according to claim 1, wherein the polygonal structure is a regular hexagonal structure or a regular quadrilateral structure.
The handlebar connection structure according to claim 1, wherein the expansion port includes two groups and is symmetrically arranged on the wall of the connecting tube.
The handlebar connection structure according to claim 1, wherein the expansion port includes a circular part and a rectangular part from bottom to top in the axial direction, and the rectangular part extends to the top of the connecting tube.
The handlebar connection structure according to claim 4, wherein the diameter of the rectangular part is smaller than the diameter of the circular part.
The handlebar connection structure according to claim 1, wherein the depth of the expansion port is not less than the depth of the connection port.
A handlebar connection structure according to claim 1, characterized in that: the front fork further includes a front fork tube located at the bottom end, the cross section of the front fork tube is a circular structure, and the front fork tube and The connecting pipes are connected through connecting pipes.
A handlebar connection structure according to claim 7, characterized in that: the connecting pipe, the connecting pipe and the front fork pipe are an integrally formed structure.
The handlebar connection structure according to claim 1, further comprising an outer tube located below the connection port and movably sleeved on the outside of the front fork.
A handlebar connection structure as claimed in claim 9, characterized in that the handlebar, front fork and outer tube are all made of carbon fiber composite materials.