Handlebar locking device and bicycle

Abstract

The utility model discloses a handlebar locking device and a bicycle, and relates to the technical field of bicycles, the handlebar locking device comprises a handlebar, a locking structure and a head tube, the handlebar is provided with a mounting hole, the inner circumferential wall of the mounting hole is provided with a limiting ring groove, the locking structure comprises a first ring body and a second ring body, and the first ring body and the second ring body are arranged in parallel. The first ring body and the second ring body are both arranged in the limiting ring groove, the second ring body is arranged on the upper portion of the first ring body and partially abuts against the first ring body, the head pipe is arranged in the mounting hole, and the inner circumferential wall of the second ring body abuts against the outer circumferential wall of the head pipe; according to the technical scheme, the installation hole is directly formed in the handlebar, a handlebar stem is omitted, the head pipe is directly installed in the installation hole, and the head pipe is fixed through the locking structure, so that installation reliability is guaranteed, the overall structure is simplified, and the machining and assembling process is simpler.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a handlebar locking device and a bicycle. Background Technology

[0002] The bicycle handlebars are connected to the head tube via a handlebar locking mechanism, which is crucial for ensuring riding control. The head tube is the vertical tube at the front of the frame, used to mount the fork and handlebars. The handlebars connect to the top of the head tube via mounting holes in the stem, allowing the rider to control the direction of the front wheel by turning the handlebars, thus achieving flexible control.

[0003] Traditional bicycles use bolts to lock the handlebars and stem together, requiring separate fixing of the handlebars to the stem and the stem to the head tube, making the manufacturing and assembly process complex. Utility Model Content

[0004] The main purpose of this utility model is to provide a handlebar locking device and a bicycle, aiming to provide a handlebar locking device that is easier to install.

[0005] To achieve the above objectives, the handlebar locking device proposed in this utility model includes:

[0006] The handlebar has a mounting hole, and the inner peripheral wall of the mounting hole has a stepped surface;

[0007] A locking structure includes a first ring and a second ring, both disposed on the stepped surface, the second ring being disposed on the upper part of the first ring and partially abutting against the first ring; and

[0008] The first tube is located in the mounting hole, and the inner peripheral wall of the second ring body abuts against the outer peripheral wall of the first tube.

[0009] In one embodiment, the handlebar includes a first deformable portion and a second deformable portion, the first deformable portion and the second deformable portion surrounding to form the mounting hole;

[0010] The handlebar locking device further includes a first bolt, which connects the first deformable part and the second deformable part.

[0011] In one embodiment, the first deformable portion and the second deformable portion are integrally formed structures.

[0012] In one embodiment, the first deformed portion and the second deformed portion are spaced apart to form a first deformed notch.

[0013] In one embodiment, the first ring body is provided with a limiting protrusion, the inner wall of the mounting hole is provided with a limiting groove, and the limiting protrusion is provided in the limiting groove.

[0014] In one embodiment, the first deformable part is provided with a first threaded hole communicating with the limiting groove, and the handlebar locking device further includes a nut screw, which is screwed into the first threaded hole and abuts against the limiting protrusion.

[0015] In one embodiment, the second ring body is formed with a second deformation notch, and a second threaded hole and a first through hole are respectively provided on both sides of the second deformation notch. The second deformation part is provided with a second through hole, and the first through hole and the second through hole are connected.

[0016] The locking structure also includes a second bolt, which is sequentially inserted into the second through hole and the first through hole, and screwed into the second threaded hole.

[0017] In one embodiment, the top surface of the first ring body is provided with a limiting notch, and the bottom surface of the second ring body is provided with a limiting protrusion, the limiting protrusion being able to abut or disengage from the limiting notch.

[0018] In one embodiment, the limiting notch includes a first guide slope and a first stop surface, and the limiting protrusion has a second guide slope and a second stop surface, wherein the first guide slope and the second guide slope abut against each other.

[0019] This utility model also proposes a bicycle, including the handlebar locking device described above.

[0020] This utility model's technical solution simplifies the front-wheel drive system by directly creating mounting holes on the handlebars, eliminating the stem, and directly installing the head tube into the mounting holes. A locking structure that moves in unison with the handlebars locks the head tube in place, simplifying the installation process. Specifically, the handlebar locking device includes the handlebars, the locking structure, and the head tube. The locking structure includes a first ring and a second ring arranged vertically in sequence. Both the first and second rings are installed within the mounting holes. The first ring is limited by a limiting ring groove, and the second ring can deform to clamp the top outer periphery of the head tube, ensuring that the head tube moves in unison with the handlebars and that there is no relative movement between them. This application's technical solution, by fixing the head tube with a locking structure, ensures reliable installation, simplifies the overall structure, and makes the processing and assembly process easier. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of an embodiment of the handlebar locking device provided by this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of a portion of the central structure;

[0024] Figure 3 A schematic diagram of the handlebar locking device provided by this utility model from another angle;

[0025] Figure 4 for Figure 1 A schematic diagram of the central locking structure;

[0026] Figure 5 This is a structural diagram of the locking structure from another angle;

[0027] Figure 6 for Figure 1 A schematic diagram of the structure of a MIMO screw.

[0028] Explanation of icon numbers:

[0029] 100. Handlebar locking device; 1. Handlebar; 11. First deformation part; 11a. First threaded hole; 12. Second deformation part; 12a. Second through hole; 1a. Mounting hole; 1b. First deformation notch; 1c. Stepped surface; 1d. Limiting groove; 2. Locking structure; 21. First ring body; 211. Limiting notch; 212. First guide slope; 213. First stop surface; 214. Limiting protrusion; 21a. First through hole; 21b. Second threaded hole; 21c. Second deformation notch; 22. Second ring body; 221. Limiting protrusion; 222. Second guide slope; 223. Second stop surface; 23. Second bolt; 3. Head tube; 4. First bolt; 5. Measuring screw; 51. Abutment part.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Traditional bicycles use bolts to lock the handlebars 1 and stem together, requiring separate fixing of the handlebars 1 to the stem and the stem to the head tube 3, making the manufacturing and assembly process complex.

[0035] To address the aforementioned problems, this utility model proposes a handlebar locking device 100, aiming to provide a handlebar locking device 100 that is simpler to install. Figures 1 to 6 This is a schematic diagram of one embodiment of the handlebar locking device 100 of this utility model.

[0036] Please refer to Figures 1 to 6 This utility model proposes a handlebar locking device 100, including a handlebar 1, a locking structure 2, and a head tube 3. The handlebar 1 has a mounting hole 1a, and the inner peripheral wall of the mounting hole 1a is provided with a limiting ring groove. The locking structure 2 includes a first ring body 21 and a second ring body 22, both of which are disposed in the limiting ring groove. The second ring body 22 is disposed on the upper part of the first ring body 21 and partially abuts against the first ring body 21. The head tube 3 is disposed in the mounting hole 1a, and the inner peripheral wall of the second ring body 22 abuts against the outer peripheral wall of the head tube 3.

[0037] The technical solution of this utility model simplifies the structure of the front-wheel drive system by directly opening a mounting hole 1a on the handlebar 1, eliminating the stem, and directly installing the head tube 3 into the mounting hole 1a. A locking structure 2, which moves in unison with the handlebar 1, locks the head tube 3, thus simplifying the installation process. Specifically, the handlebar 1 locking device includes the handlebar 1, the locking structure 2, and the head tube 3. The locking structure 2 includes a first ring 21 and a second ring 22 arranged vertically in sequence. Both the first ring 21 and the second ring 22 are installed in the mounting hole 1a. The first ring 21 is limited by a limiting ring groove, and the second ring 22 can deform to clamp the top outer peripheral wall of the head tube 3, thereby ensuring that the head tube 3 moves in unison with the handlebar 1, and that there is no relative movement between them. The technical solution of this application, by fixing the head tube 3 with the locking structure 2, ensures the reliability of the installation, simplifies the overall structure, and makes the processing and assembly process simpler.

[0038] It is understood that the first ring body 21 is placed on the stepped surface 1c of the mounting hole 1a, and the second ring body 22 is located above the first ring body 21, with the top surface of the first ring body 21 abutting against the bottom surface of the second ring body 22. For details, please refer to further reading. Figure 3 and Figure 4 The second ring 22 is fixed to the mounting hole 1a of the handlebar 1 by the second bolt 23, thereby achieving a consistent motion trajectory with the handlebar 1. There will be no relative movement between the two, thus ensuring the reliable steering performance of the bicycle.

[0039] The handlebar 1 includes a first deformable part 11 and a second deformable part 12, which together form a mounting hole 1a. For details, please refer to further details. Figure 1 The first deformable part 11 and the second deformable part 12 are locked together by the first bolt 4. When the first bolt 4 is loosened, a first deformable notch 1b exists between the first deformable part 11 and the second deformable part 12. At this time, the diameter of the mounting hole 1a formed by the first deformable part 11 and the second deformable part 12 is larger than the outer diameter of the first ring body 21 and the second ring body 22, thus allowing the first ring body 21 and the second ring body 22 to be installed in the mounting hole 1a. The first deformable part 11, the second deformable part 12, and the handlebar 1 are all integrally molded structures, which can significantly improve the overall strength and stability of the handlebar 1. This structure avoids the problem of loosening or breakage at the joints that may occur due to the splicing of multiple parts, ensuring the firmness and reliability of the handlebar 1 during riding, thereby improving the handling performance and safety of the bicycle. At the same time, the integrally molded structure reduces the number of parts and assembly processes, reduces production costs and assembly errors, further improves the quality and consistency of the product, and makes the handlebar 1 more durable and easier to maintain during use.

[0040] To prevent the first ring 21 and the second ring 22 from moving relative to the handlebar 1, the first ring 21 is provided with a limiting protrusion 214, and the inner wall of the mounting hole 1a is provided with a limiting groove 1d. For details, please refer to further reading. Figure 3 and Figure 4 The limiting protrusion 221 is provided within the limiting groove 1d, thereby limiting the locking structure 2. For the second ring 22, the top surface of the first ring 21 is provided with a limiting notch 211, and the bottom surface of the second ring 22 is provided with a limiting protrusion 221. The limiting protrusion 221 can abut or disengage from the limiting notch 211. The limiting notch 211 includes a first guide slope 212 and a first stop surface 213. The limiting protrusion 221 has a second guide slope 222 and a second stop surface 223. The first guide slope 212 and the second guide slope 222 abut against each other, thereby limiting the second ring 22 through the abutment of the first stop surface 213 and the second stop surface 223.

[0041] Furthermore, the first deformable part 11 is provided with a first threaded hole 11a that connects to the limiting groove 1d. The handlebar locking device 100 also includes a nut screw 5, which is screwed into the first threaded hole 11a and abuts against the limiting protrusion 221. For details, please refer to further description. Figure 2 and Figure 6 The end of the nut screw 5 is configured as an abutment part 51, which abuts against the limiting protrusion 221 of the first ring body 21, thereby ensuring that the first ring body 21 is locked relative to the handlebar 1.

[0042] To enable the second ring 22 to deform and clamp the first tube 3, the friction between the inner wall of the second ring 22 and the outer wall of the first tube 3 acts as a locking force for the first tube 3. The second ring 22 has a second deformation notch 21c. The second bolt 23 connects the structures on both sides of the second deformation notch 21c together. One end of the second deformation notch 21c is provided with a first through hole 21a, and the other end is provided with a second threaded hole 21b. The second bolt 23 is inserted from one end of the first through hole 21a and passes over the second deformation notch 21c, so that the other end is screwed into the second threaded hole 21b. When the second bolt 23 is rotated, the second deformation notch 21c is reduced until the two ends of the second deformation notch 21c abut against each other. During this process, the inner diameter of the second ring 22 also decreases continuously, so that the second ring 22 can clamp the first tube 3 and achieve locking of the first tube 3. Since the second ring 22 is completely located inside the mounting hole 1a of the handlebar 1, a second through hole 12a is provided at the corresponding position of the second deformed part 12 in order to install the second bolt 23. The first through hole 21a and the second through hole 12a are connected. The second bolt 23 is sequentially inserted into the second through hole 12a, the first through hole 21a and the second threaded hole 21b, thereby achieving fastening.

[0043] This utility model also proposes a bicycle, which includes a handlebar locking device 100. The specific structure of the handlebar locking device 100 is as described in the above embodiments. Since this bicycle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0044] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A handlebar lock device, characterized in that, include: The handlebar (1) has a mounting hole (1a), and the inner peripheral wall of the mounting hole (1a) is provided with a stepped surface (1c); The locking structure (2) includes a first ring body (21) and a second ring body (22), both the first ring body (21) and the second ring body (22) being disposed on the stepped surface (1c), and the second ring body (22) being disposed on the upper part of the first ring body (21) and partially abutting against the first ring body (21); and The first tube (3) is located in the mounting hole (1a), and the inner peripheral wall of the second ring (22) abuts against the outer peripheral wall of the first tube (3).

2. The handle lock apparatus of claim 1 wherein, The handlebar (1) includes a first deformation part (11) and a second deformation part (12), the first deformation part (11) and the second deformation part (12) together form the mounting hole (1a); The handlebar (1) locking device further includes a first bolt (4), which connects the first deformable part (11) and the second deformable part (12).

3. The handlebar lock apparatus of claim 2, wherein The first deformable part (11) and the second deformable part (12) are integrally formed structures.

4. The handlebar lock apparatus of claim 3, wherein The first deformation portion (11) and the second deformation portion (12) form a first deformation notch (1b) at intervals.

5. The handlebar locking device as described in claim 2, characterized in that, The first ring body (21) is provided with a limiting protrusion (214), and the inner wall of the mounting hole (1a) is provided with a limiting groove (1d), and the limiting protrusion (214) is provided in the limiting groove (1d).

6. The handlebar lock apparatus of claim 5, wherein, The first deformable part (11) is provided with a first threaded hole (11a) that communicates with the limiting groove (1d). The handlebar (1) locking device also includes a nut screw (5), which is screwed into the first threaded hole (11a) and abuts against the limiting protrusion (214).

7. The handle lock apparatus of claim 2 wherein, The second ring (22) has a second deformation notch (21c), and a second threaded hole (21b) and a first through hole (21a) are respectively provided on both sides of the second deformation notch (21c). The second deformation part (12) is provided with a second through hole (12a), and the first through hole (21a) and the second through hole (12a) are connected. The locking structure (2) further includes a second bolt (23), which is sequentially inserted into the second through hole (12a) and the first through hole (21a) and screwed into the second threaded hole (21b).

8. The handlebar locking device as described in any one of claims 1 to 6, characterized in that, The top surface of the first ring body (21) is provided with a limiting notch (211), and the bottom surface of the second ring body (22) is provided with a limiting protrusion (221). The limiting protrusion (221) can abut or disengage from the limiting notch (211).

9. The handlebar lock apparatus of claim 8, wherein, The limiting notch (211) includes a first guide slope (212) and a first stop surface (213), and the limiting protrusion (221) has a second guide slope (222) and a second stop surface (223), wherein the first guide slope (212) and the second guide slope (222) abut against each other.

10. A bicycle characterized in that, Includes the handlebar locking device as described in any one of claims 1 to 9.

Images