Handlebar fastening structure
The design of the barbed groove hook block on the neck tube and tube cap enables single-sided fastening of the handlebars, solving the problems of complicated operation and damage to appearance caused by multiple bolts, and improving the practicality and aesthetics of bicycle handlebars.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-31
AI Technical Summary
The existing handlebar fastening structure requires multiple bolts for securing, which is complicated and detracts from the aesthetic appearance.
The design incorporates a neck tube and a cap, utilizing barbed grooves and hook blocks to achieve unilateral fastening, reducing the amount of bolts used, and enabling rapid assembly through the cooperation between the cap and the neck tube.
It simplifies the fastening process, improves convenience and aesthetics, and enhances practicality and economic benefits.
Smart Images
Figure CN224061123U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a handlebar fastening structure, which is mainly applied in the field of bicycle technology. Background Technology
[0002] Bicycles have always been a popular mode of transportation, and with the rise of environmental awareness in recent years, bicycles and e-bikes have become even more popular. Their structure, features, and materials have been improved and are constantly being updated. In addition to standard accessories, there are also components that users can install, select, or adjust themselves. For example, the handlebars are connected to the top of a fork tube via a neck tube, allowing the rider to control the direction of the bicycle by swinging the front wheel through the fork tube.
[0003] Currently, the neck tubes used for securing handlebars mainly have a C-shaped axial hole at one end corresponding to the fork tube. The neck tube passes through the C-shaped axial hole and is then secured to the fork tube by using a locking bolt to lock the outer edge of the C-shaped axial hole. This reduces the size of the C-shaped axial hole, allowing the neck tube to be clamped and fixed to the fork tube. Furthermore, at the end of the neck tube corresponding to the handlebar, a semi-circular groove with its axis perpendicular to the C-shaped axial hole is formed. A tube cap with a corresponding semi-circular groove is provided, and fixing bolts are locked at the upper and lower ends of the tube cap. The tube cap and the semi-circular groove of the neck tube together tightly clamp the handlebar.
[0004] Because the current handlebars require multiple upper and lower fixing bolts to be tightened simultaneously, which is not only numerous but also requires adjusting the optimal tightening distance of each bolt, thus increasing the overall tightening operation time. Furthermore, these fixing bolts are usually placed in conspicuous locations for easy tool operation, which complicates the appearance of the neck tube and detracts from its overall aesthetic appeal. Therefore, further improvements are needed. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a handlebar fastening structure that can be fastened using one side, which can reduce the amount of fixing bolts used, simplify the fastening operation, improve convenience, and effectively enhance its practicality; at the same time, it can further achieve a simple and complete appearance, greatly enhance its overall aesthetics, and overcome the shortcomings of the prior art.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a handlebar fastening structure, which is applied to a vertically arranged front fork tube for locking a lateral handlebar. The handlebar fastening structure includes a neck tube and a tube cap; one end of the neck tube has an axial tube hole that can be selectively locked to the front fork tube, and the end of the neck tube corresponding to the handlebar has a first semi-circular arc groove with its axis perpendicular to the axial tube hole. The inner wall surface of the neck tube corresponding to the first semi-circular arc groove has a barb groove. The barbed groove has an opening that connects to the first semicircular groove; the tube cap has a second semicircular groove that engages with the first semicircular groove to clamp the handlebar, and the tube cap has a support arm corresponding to the neck tube formed on the upper edge of the second semicircular groove, and the bottom edge of the support arm has a hook block that can be inserted into the barbed groove, and the lower end of the tube cap can be selectively locked to the opposite end of the neck tube, so that the upper end of the tube cap is hooked to the barbed groove of the neck tube by the hook block, so that the tube cap covers the handlebar downward and is fastened on one side.
[0007] Preferably, the axial bore of the neck tube has a radial through opening, allowing the neck tube to be locked using a plurality of locking bolts.
[0008] Preferably, the neck tube has a groove center with a groove axis, and the opening has a central axis passing through the groove axis. The central axis of the opening and a horizontal axis of the groove axis have an angle between them, which is greater than 0 degrees and less than 90 degrees.
[0009] Preferably, the optimal angle of this included angle is 45 degrees.
[0010] Preferably, the neck tube has a first stop surface at the upper edge of the first semicircular groove, and the tube cap has a second stop surface at the upper edge of the second semicircular groove that corresponds to the first stop surface, so that the tube cap can abut against the first stop surface of the neck tube with the second stop surface.
[0011] Preferably, the first stop surface has a vertical extension line, and the vertical extension line of the first stop surface does not intersect with the outer edge of the barb groove and the opening.
[0012] Preferably, a locking hole is formed at each end of the lower edge of the first semi-circular groove of the neck tube, and a countersunk hole corresponding to the locking hole is formed at each end of the lower edge of the tube cap, so as to lock the opposite ends of the tube cap and the neck tube by means of a plurality of fixing screws.
[0013] The beneficial effects of this utility model are as follows: Through the aforementioned technical means, this invention utilizes the hook block of the tube cap and the barbed groove of the neck tube for unilateral fastening, which can effectively reduce the amount of fixing screws used for fastening. At the same time, through the simple structure, it can be quickly assembled, improving the convenience of assembly, and further obtaining a simple and complete appearance, greatly enhancing its overall aesthetics, effectively improving its practicality, and further increasing its added value and economic benefits.
[0014] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the handlebar fastening structure of this creation.
[0016] Figure 2 This is a three-dimensional exploded diagram of the handlebar fastening structure of this creation.
[0017] Figure 3 This is a three-dimensional exploded diagram of the handle fastening structure from another perspective of this creation.
[0018] Figure 4 This is a side view cross-sectional diagram of the handle fastening structure of this creation.
[0019] Figure 5 This is a side view sectional diagram of the handle fastening structure of this creation during actual fastening. Detailed Implementation
[0020] This invention features a handlebar fastening structure, such as Figure 1 and Figure 2 As shown, it comprises a neck tube 20 and a tube cap 30 selectively disposed on the neck tube 20. The neck tube 20 is used to lock onto the top of a front fork tube (not shown in the figure) and cooperates with the tube cap 30 to clamp and fasten a horizontally arranged handlebar 50.
[0021] For a detailed description of the composition of this work, please refer to [the relevant documentation / reference]. Figure 2 , Figure 3 and Figure 4 As shown, the neck tube 20 has an axial tube hole 21 with a radial through opening 22 at one end corresponding to the front fork tube, so that the neck tube 20 can be sleeved on the front fork tube through the axial tube hole 21. Furthermore, a plurality of locking bolts 23 are used to lock the radial through opening 22 on the outer edge of the neck tube 20, so that the neck tube 20 can be clamped and fixed on the front fork tube by reducing the diameter of the axial tube hole 21. The neck tube 20 has a first semi-circular groove 25 with its axis perpendicular to the axial tube hole 21 at one end corresponding to the handlebar 50, and the handlebar 50 is clamped and fixed by the tube cap 30.
[0022] The distinctive feature of this invention lies in the fact that the neck tube 20 has a barbed groove 26 formed on the inner wall surface corresponding to the first semi-circular groove 25, such as Figure 2 and Figure 4 As shown, the barbed groove 26 has a groove axis (A) at its center, and the barbed groove 26 forms an opening 27 connecting the first semi-circular groove 25. The opening 27 has a central axis (Y) passing through the groove axis (A). The central axis (Y) of the opening 27 and a horizontal axis (X) of the groove axis (A) form an angle (θ), which is greater than 0 degrees and less than 90 degrees. The optimal angle (θ) is 45 degrees, so that the barbed groove 26 of the neck tube 20... The opening 27 is generally angled downward to create a hook-and-loop action. The neck tube 20 has a first stop surface 28 formed on the upper edge of the first semi-circular groove 25. The first stop surface 28 has a vertical extension line (Z). The vertical extension line (Z) of the first stop surface 28 does not intersect with the outer edge of the barbed groove 26 and the opening 27 to limit the tube cap 30. Furthermore, the neck tube 20 has a locking hole 29 formed at both ends of the lower edge of the first semi-circular groove 25 for locking the tube cap 30.
[0023] The cap 30 has a second semicircular groove 31 corresponding to the first semicircular groove 25 of the neck tube 20, so that the neck tube 20 and the first and second semicircular grooves (25, 31) of the cap 30 can be closed to form a circular hole for clamping the handlebar 50 (e.g., Figure 5 As shown), Figure 3 and Figure 4 As shown, the cap 30 has a downwardly angled support arm 32 formed at the upper edge of the neck tube 20 corresponding to the second semi-circular groove 31, and the bottom edge of the support arm 32 has a hook block 33 that is approximately upwardly angled and corresponds to the barb groove 26, so that the cap 30 can be fastened into the barb groove 26 of the neck tube 20 by the hook block 33 of the support arm 32 (e.g., Figure 4 and Figure 5 As shown), the cap 30 has a second stop surface 34 corresponding to the first stop surface 28 formed on the upper edge of the second semi-circular groove 31, so that the cap 30 can abut against the first stop surface 28 of the neck tube 20 through the second stop surface 34, thereby limiting the cap 30 to the neck tube 20 (as shown). Figure 5 As shown), the tube cap 30 has a countersunk hole 38 corresponding to the locking hole 29 at both ends of its lower edge, for locking the opposite ends of the tube cap 30 and the neck tube 20 with a plurality of fixing screws 39.
[0024] Thus, the upper end of the tube cap 30 can be hooked onto the barbed groove 26 of the neck tube 20 by the hook block 33 of the support arm 32, so that the tube cap 30 covers the handlebar 50 downward with the top edge of the second stop surface 34 and the first stop surface 28 as the fulcrum, and the tube cap 30 and the lower end of the neck tube 20 are locked together by the fixing screw 39, thereby forming a handlebar fastening structure that effectively reduces the number of fixing screws 39, is easy to operate, and has a simplified appearance.
[0025] Through the aforementioned structural design, the handlebar fastening structure of this invention, in practical applications, such as... Figure 1 , Figure 4 and Figure 5 As shown, in operation, the tube cap 30 is hooked into the barbed groove 26 of the neck tube 20 connecting the first semi-circular arc groove 25 by the hook block 33 of the support arm 32, and the tube cap 30 is covered on the first semi-circular arc groove 25 of the neck tube 20 by the second semi-circular arc groove 31. The second stop surface 34 of the tube cap 30 is placed against the first stop surface 28 of the neck tube 20, and the countersunk hole 38 of the tube cap 30 is aligned with the locking hole 29 of the neck tube 20. Then, the fixing screw 39 is used to lock the countersunk hole 38 of the tube cap 30 and the locking hole 29 of the neck tube 20, thereby securing the handlebar 50.
[0026] As can be seen from the aforementioned structural and operational descriptions, the handlebar fastening structure of this invention can utilize the hook block 33 of the support arm 32 of the tube cap 30 and the barbed groove 26 of the neck tube 20 for single-sided fastening, which can effectively reduce the amount of fixing screws 39 used for fastening. At the same time, through the simple structure, it can be quickly assembled, improving the convenience of assembly, and further achieving a simple and complete appearance, greatly enhancing its overall aesthetics.
Claims
1. A handlebar fastening structure applied to a vertically disposed front fork tube for locking a transversal handlebar, the handlebar fastening structure comprising a neck tube and a tube cover; characterized in that: The neck pipe has an axial pipe hole at one end selectively locked with the front pipe, and a first semicircular groove with an axis perpendicular to the axial pipe hole at one end corresponding to the handlebar. The neck pipe has a reverse hook groove on the inner wall surface corresponding to the first semicircular groove, and the reverse hook groove has an opening communicating with the first semicircular groove. The pipe cover has a second semicircular groove clamping the handlebar corresponding to the first semicircular groove. The pipe cover has a branch corresponding to the neck pipe on the upper edge of the second semicircular groove, and the bottom edge of the branch has a hooking block corresponding to the reverse hook groove. The lower end of the pipe cover is selectively locked with the opposite end of the neck pipe, so that the upper end of the pipe cover is hooked with the hooking block in the reverse hook groove of the neck pipe, and the pipe cover covers the handlebar downward to be fastened on one side.
2. The handlebar fastening structure according to claim 1, characterized in that: The axial pipe hole of the neck pipe has a radial through opening, so that the neck pipe can be locked with multiple locking bolts.
3. The handlebar fastening structure according to claim 1, wherein: The reverse hook groove of the neck pipe has a groove axis, and the opening has a central axis passing through the groove axis. The central axis of the opening and the horizontal axis of the groove axis have an included angle, and the included angle is greater than 0 degrees and less than 90 degrees.
4. The handlebar fastening structure according to claim 3, characterized in that: The optimal angle of the included angle is 45 degrees.
5. The handlebar fastening structure according to claim 1, wherein: The neck pipe has a first stop surface on the upper edge of the first semicircular groove, and the pipe cover has a second stop surface corresponding to the first stop surface on the upper edge of the second semicircular groove, so that the pipe cover can be attached to the first stop surface of the neck pipe with the second stop surface.
6. The handlebar fastening structure according to claim 5, wherein: The first stop surface has a vertical extension line, and the vertical extension line of the first stop surface does not intersect with the outer edge of the reverse hook groove and the opening.
7. The handlebar fastening structure according to claim 1, wherein: The neck pipe has a locking hole at both ends of the lower edge of the first semicircular groove, and the pipe cover has a corresponding counterbore at both ends of the lower edge, for locking the pipe cover and the opposite end of the neck pipe with multiple fixing bolts.