Internal wiring type stem structure

By using an internal cable routing stem structure, the wiring harness is hidden inside the vertical sleeve, which solves the aging problem caused by exposed cables, extends the life of the bicycle wiring harness and improves its appearance. It also has the advantages of compact structure and convenient assembly and disassembly.

CN223949292UActive Publication Date: 2026-02-27JIANGMEN WEIYI ALUMINUM TECH CO LTD
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Patent Information

Application Number
CN202520539098.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-27
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

In existing bicycle stem structures, the cables of external components such as lights and horns are exposed, making them prone to aging and damage, leading to component failure, short service life, and unsightly appearance.

Method used

Design an internally routed stem structure, including a stem sleeve, a cable guide, a stem body, corner caps, and a front stem cover. The cable harness is hidden inside the stem sleeve through the cable guide port and the stem mounting hole. The clamping degree is adjusted by using pipe clamps and fasteners, and the connection stability and sealing are improved by using sealing rings and aluminum rings.

Benefits of technology

It achieves wire harness concealment, extends service life, has a simple and beautiful appearance, a simple and compact structure, is easy to disassemble and assemble, adapts to the assembly requirements of different pipe diameters, and improves ease of use and durability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223949292U_ABST
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Abstract

The utility model discloses an internal wiring type stem structure, which comprises a stem sleeve, a threading seat, a stem main body, a wrap angle cover and a stem front cover, the threading seat is fixedly arranged on the stem sleeve, the rear end of the stem main body is fixedly arranged on the threading seat, the wrap angle cover is fixedly arranged on the threading seat and wraps the rear end of the stem main body, and the stem front cover is fixedly arranged on the stem sleeve. The stem front cover is fixedly arranged at the front end of the stem main body, a stem mounting hole is formed in the stem sleeve, extending wing parts are arranged on the two sides of the threading seat, a threading opening is formed between the extending wing parts and the outer wall of the stem main body, and the threading opening is communicated with the stem mounting hole, so that a wiring harness is wired into the stem mounting hole from the threading opening. The internal wiring type handlebar stem structure has the advantages of being simple and compact in structure, convenient to disassemble and assemble and good in use convenience, and the service life of a handlebar wire harness can be effectively prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a bicycle accessory technical field, concretely relates to an internal wiring type handlebar stem structure. BACKGROUND

[0002] With the continuous improvement of people's living standards, as an aerobic exercise, bicycle movement has been widely used for exercise, leisure and entertainment, social activities and integrated into people's lives, the existing bicycle handlebar stem generally realizes the axial and circumferential locking and fixing between the handlebar stem and the front fork vertical pipe by inserting or sleeving the handlebar stem pipe into the front fork vertical pipe from the top, but the cable of external components such as car light and horn is exposed outside, after being used for a period of time, the skin of the cable is prone to aging and damage, leading to the failure of the corresponding components, and there is certain limitation. SUMMARY

[0003] The utility model solves the technical problem that the prior art exists, provides an internal wiring type handlebar stem structure that is simple and compact in structure, convenient to disassemble and assemble, good in use convenience and can effectively prolong the service life of the handlebar wire harness.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] An internal wiring type handlebar stem structure, which comprises a vertical pipe sleeve, a threading seat, a handlebar stem body, an angle cover and a handlebar stem front cover, the threading seat is fixedly arranged on the vertical pipe sleeve, the rear end of the handlebar stem body is fixedly arranged on the threading seat, the angle cover is fixedly arranged on the threading seat and covers the rear end of the handlebar stem body, the handlebar stem front cover is fixedly arranged on the front end of the handlebar stem body, the vertical pipe sleeve is provided with a vertical pipe mounting hole, the two sides of the threading seat are provided with extension wing parts, the extension wing parts and the outer wall of the handlebar stem body form threading openings, and the threading openings are communicated with the vertical pipe mounting hole, so that the wire harness is threaded from the threading openings to the vertical pipe mounting hole.

[0006] As a further improvement of the above technical scheme:

[0007] The inner wall of the vertical pipe mounting hole is radially protruded and formed with a threading cavity.

[0008] The rear end of the handlebar stem body is provided with a first pipe clamp part and a second pipe clamp part, a vertical pipe clamping hole is formed between the first pipe clamp part and the second pipe clamp part, the front end of the handlebar stem body is provided with a first arc-shaped recess, the handlebar stem front cover is provided with a second arc-shaped recess, and a handlebar clamping hole is formed between the first arc-shaped recess and the second arc-shaped recess.

[0009] A first fastener is arranged between the handlebar stem front cover and the handlebar stem body, so as to adjust the clamping degree of the handlebar clamping hole.

[0010] A second fastener is arranged between the first pipe clamp part and the second pipe clamp part to adjust the clamping degree of the vertical pipe fixing hole.

[0011] A top cover is arranged on the handle main body to cover the vertical pipe fixing hole, and a third fastener is arranged on the top cover to connect with the vertical pipe.

[0012] The corner cover is provided with an insertion protrusion, and the extension wing of the wire seat is provided with an insertion hole, and the insertion protrusion is inserted into the insertion hole, so that the corner cover is connected to the wire seat.

[0013] The end of the vertical pipe sleeve is provided with a sealing ring and an aluminum ring.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The inner wiring type handle structure comprises a vertical pipe sleeve, a wire seat, a handle main body, a corner cover and a handle front cover, the wire seat is provided with extension wings on both sides, the extension wings and the outer wall of the handle main body form a wire passing opening, the wire passing opening is communicated with the vertical pipe mounting hole in the vertical pipe sleeve, and the wire harness such as the power line of the car lamp and the horn and the control line on the handle can pass through the wire passing opening and be arranged in the vertical pipe sleeve, so that the wire harness between the handle and the vertical pipe is hidden in the vertical pipe sleeve, the appearance is more simple and beautiful, the service life of the handle wire harness can be effectively prolonged, and the handle structure has the advantages of simple and compact structure, convenient disassembly and assembly and good use convenience. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the inner wiring type handle structure.

[0017] Figure 2 It is a split schematic view of the inner wiring type handle structure.

[0018] Figure 3 It is a split schematic view of the handle main body and the handle front cover.

[0019] Figure 4 It is a split schematic view of the vertical pipe sleeve, the wire seat and the corner cover.

[0020] Figure 5 It is another angle split schematic view of the vertical pipe sleeve, the wire seat and the corner cover.

[0021] LEGEND:

[0022] 1, vertical pipe sleeve; 101, vertical pipe mounting hole; 102, wiring type cavity; 2, threading seat; 201, extension wing; 202, insertion hole position; 3, handle main body; 301, first pipe clamp part; 302, second pipe clamp part; 303, vertical pipe clamping hole; 4, corner cover; 401, insertion convex part; 5, handle front cover; 6, threading port; 7, handle clamping hole; 8, first fastener; 9, second fastener; 10, top cover; 11, third fastener; 12, sealing ring; 13, aluminum ring. DETAILED DESCRIPTION

[0023] The utility model will be explained in further detail below in combination with the drawings and specific embodiments.

[0024] As Figures 1 to 5 shown, the inner wiring type handle structure of the embodiment includes a vertical pipe sleeve 1, a threading seat 2, a handle main body 3, a corner cover 4, and a handle front cover 5. The threading seat 2 is fixedly arranged on the vertical pipe sleeve 1. The rear end of the handle main body 3 is fixedly arranged on the threading seat 2. The corner cover 4 is fixedly arranged on the threading seat 2 and covers the rear end of the handle main body 3. The handle front cover 5 is fixedly arranged on the front end of the handle main body 3. The vertical pipe sleeve 1 is internally provided with a vertical pipe mounting hole 101. The two sides of the threading seat 2 are provided with extension wings 201. The extension wings 201 and the outer wall of the handle main body 3 form a threading port 6. The threading port 6 is in communication with the vertical pipe mounting hole 101, so that the wire harness can be routed from the threading port 6 to the vertical pipe mounting hole 101. The inner wiring type handle structure includes the vertical pipe sleeve 1, the threading seat 2, the handle main body 3, the corner cover 4, and the handle front cover 5. The two sides of the threading seat 2 are provided with the extension wings 201. The extension wings 201 and the outer wall of the handle main body 3 form the threading port 6. The threading port 6 is in communication with the vertical pipe mounting hole 101 in the vertical pipe sleeve 1. The power lines of the vehicle lamps and horns and the control lines on the handlebar and other wire harnesses can be threaded into the vertical pipe sleeve 1 through the threading port 6. The wire harness between the handlebar and the vertical pipe is hidden inside the vertical pipe sleeve 1. The appearance is more simple and beautiful. The service life of the handlebar wire harness can be effectively prolonged. The structure is simple and compact. The handlebar can be easily disassembled and assembled. The handlebar is convenient to use.

[0025] Preferably, the inner wall of the vertical pipe mounting hole 101 is radially outwardly protrudingly formed with a wiring type cavity 102. In the embodiment, the vertical pipe mounting hole 101 is internally formed with a wiring type cavity 102 that is radially outwardly protrudingly extended. When the vertical pipe is threaded into the vertical pipe mounting hole 101, the wiring type cavity 102 can realize the wiring function inside the vertical pipe sleeve 1. The power lines of the vehicle lamps and horns and the control lines on the handlebar and other wire harnesses can be threaded into the wiring type cavity 102 through the threading port 6. The appearance is more simple and beautiful. This is conducive to prolonging the service life.

[0026] Preferably, the rear end of the handle main body 3 is provided with a first pipe clamping portion 301 and a second pipe clamping portion 302, and a vertical pipe clamping hole 303 is formed between the first pipe clamping portion 301 and the second pipe clamping portion 302. The front end of the handle main body 3 is provided with a first arc-shaped recess, and the handle front cover 5 is provided with a second arc-shaped recess. A handle clamping hole 7 is formed between the first arc-shaped recess and the second arc-shaped recess.

[0027] Preferably, a first fastener 8 is arranged between the handle front cover 5 and the handle main body 3 to adjust the clamping degree of the handle clamping hole 7. Specifically, the first fastener 8 is preferably a screw. The handle front cover 5 and the handle main body 3 are connected by screws. During assembly, the first arc-shaped recess at the front end of the handle main body 3 is abutted to the handle, and then the second arc-shaped recess of the handle front cover 5 is abutted to the handle. The first fastener 8 is arranged between the handle front cover 5 and the handle main body 3 to adjust the clamping degree of the handle clamping hole 7. The assembly requirements of handles with different pipe diameters can be met, and the application range is wide.

[0028] Preferably, a second fastener 9 is arranged between the first pipe clamping portion 301 and the second pipe clamping portion 302 to adjust the clamping degree of the vertical pipe clamping hole 303. Specifically, the second fastener 9 is preferably a screw. The first pipe clamping portion 301 and the second pipe clamping portion 302 are connected by screws. The clamping degree of the vertical pipe clamping hole 303 can be adjusted by loosening or tightening the screws. The assembly requirements of vertical pipes with different pipe diameters can be met. The advantages are convenient assembly and disassembly, low cost, and high reliability.

[0029] Preferably, a top cover 10 is arranged on the handle main body 3 to cover the vertical pipe clamping hole 303. A third fastener 11 is arranged on the top cover 10 to connect with the vertical pipe. In this embodiment, during assembly, the vertical pipe sleeve 1 is first installed on the vertical pipe, the vertical pipe is arranged in the vertical pipe mounting hole 101, and then the wire passing seat 2 is installed on the vertical pipe sleeve 1. The handle front cover 5 and the handle main body 3 are fixedly connected. Then, the handle main body 3 is installed on the vertical pipe, the vertical pipe is arranged in the vertical pipe clamping hole 303, and the top cover 10 covers the vertical pipe clamping hole 303. Then, the third fastener 11 passes through the top cover 10 and is connected with the vertical pipe. Finally, the corner cover 4 is installed on the wire passing seat 2. Dust and rainwater can be effectively prevented from entering the interior of the vertical pipe from above, and the service durability of the bicycle internal parts is improved.

[0030] Preferably, the corner cover 4 is provided with an insertion protrusion 401, and the extension wing portion 201 of the wire passing seat 2 is provided with an insertion hole 202. The insertion protrusion 401 is inserted into the insertion hole 202, so that the corner cover 4 is connected to the wire passing seat 2 by insertion. In this embodiment, the corner cover 4 and the wire passing seat 2 are connected by insertion. The advantages are simple structure, convenient and fast assembly and disassembly, and high maintenance efficiency.

[0031] Preferably, the end of the vertical pipe sleeve 1 is provided with a sealing ring 12 and an aluminum ring 13. In this embodiment, the sealing ring 12 and the aluminum ring 13 are arranged on the end of the vertical pipe sleeve 1 away from the handle main body 3, which can effectively improve the connection stability and sealing performance between the vertical pipe sleeve 1 and the vertical pipe, and prevent dust and rain from entering the inside of the vertical pipe from below to a certain extent.

[0032] The preferred embodiments of the present application have been described above with reference to the drawings. The scope of protection of the present application is not limited to the above-described embodiments. Improvements and modifications to the present application made by those skilled in the art without departing from the spirit of the present application should also be considered as within the scope of protection of the present application.

Claims

1. An inner wiring type handlebar structure characterized by comprising: The utility model relates to a vertical pipe sleeve (1), threading seat (2), the main body of handle (3), the cover of angle (4) and handle front cover (5), threading seat (2) fixedly arranged on vertical pipe sleeve (1), the rear end of handle main body (3) is fixedly arranged on threading seat (2), the cover of angle (4) is fixedly arranged on threading seat (2) and covers the rear end of handle main body (3), handle front cover (5) is fixedly arranged on the front end of handle main body (3), vertical pipe sleeve (1) is equipped with vertical pipe installation hole (101), both sides of threading seat (2) are equipped with extension wing part (201), extension wing part (201) and the outer wall between handle main body (3) form threading port (6), threading port (6) communicates with vertical pipe installation hole (101), so that wire harness is routed from threading port (6) to vertical pipe installation hole (101) in.

2. The inner wiring type handlebar structure according to claim 1, characterized by The inner wall of the vertical pipe installation hole (101) is radially convexly formed with a wire routing cavity (102).

3. The inner wiring type handlebar structure according to claim 2, characterized by The rear end of the handle main body (3) is provided with a first pipe clamp portion (301) and a second pipe clamp portion (302), a vertical pipe clamping hole (303) is formed between the first pipe clamp portion (301) and the second pipe clamp portion (302), the front end of the handle main body (3) is provided with a first arc-shaped groove, the handle front cover (5) is provided with a second arc-shaped groove, a handlebar clamping hole (7) is formed between the first arc-shaped groove and the second arc-shaped groove.

4. The inner wiring type handlebar structure according to claim 3, characterized in that A first fastener (8) is provided between the handle front cover (5) and the handle main body (3) to adjust the clamping degree of the handlebar clamping hole (7).

5. The inner wiring type handlebar structure according to claim 4, wherein A second fastener (9) is provided between the first pipe clamp portion (301) and the second pipe clamp portion (302) to adjust the clamping degree of the vertical pipe clamping hole (303).

6. The inner wiring type handlebar structure according to claim 5, wherein A top cover (10) is provided on the handle main body (3) to cover the vertical pipe clamping hole (303), and a third fastener (11) is provided on the top cover (10) to connect with the vertical pipe.

7. The inner wiring type handlebar structure according to claim 6, characterized in that An insertion protrusion (401) is provided on the cover of angle (4), an insertion hole (202) is provided on the extension wing part (201) of the threading seat (2), and the insertion protrusion (401) is inserted into the insertion hole (202) to connect the cover of angle (4) to the threading seat (2).

8. The inner wiring type handlebar structure according to claim 7, characterized in that A sealing ring (12) and an aluminum ring (13) are mounted on the end of the vertical pipe sleeve (1).