Anti-theft handlebar lock

By setting a limiting support structure and screw connection on the main lock body of the anti-theft vehicle lock, the problem of the alarm loosening due to vibration is solved, achieving stable installation and convenient maintenance, and enhancing the anti-theft effect and convenience.

CN224676263UActive Publication Date: 2026-08-25WENZHOU JINDUOBAO LOCK IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522231200.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-08-25
Estimated Expiration
2035-10-22

AI Technical Summary

Technical Problem

The alarms on existing car locks are not securely installed and are prone to loosening or falling off due to vehicle vibration, thus affecting the anti-theft effect.

Method used

A limit support structure, including a support reinforcing rib and a limit post, is set on the main lock body. The alarm is fixed by screws to ensure its stable installation, and a detachable design is adopted for easy maintenance and replacement.

Benefits of technology

It enables the alarm to be securely installed under vehicle vibration conditions, improves the anti-theft effect, and facilitates user maintenance and replacement. At the same time, the hinged lock body structure allows for easy adjustment to fit different handlebar sizes, making it more convenient to carry and store.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224676263U_ABST
    Figure CN224676263U_ABST
Patent Text Reader

Abstract

The application discloses a theftproof handlebar lock, which is characterized by a special limiting support structure arranged on a main lock body, so that the alarm is stably installed on the main lock body and cannot be easily detached due to vibration during vehicle driving. Meanwhile, the alarm is designed to be detachable, which greatly facilitates user maintenance and replacement. When the alarm is faulty or needs to be upgraded, the user can easily take it off from the limiting support structure and perform corresponding operation. Moreover, the hinged connection structure of the main lock body and the auxiliary lock body not only facilitates the user to adjust the shape of the lock according to actual requirements to adapt to handlebars of different sizes, but also makes the theftproof handlebar lock more convenient to carry and store.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to an anti-theft bicycle handlebar lock. Background Technology

[0002] In existing technologies, alarms are typically installed on car door handles to sound an alarm when the vehicle is illegally touched, thus serving a theft prevention function. However, the installation methods of existing alarms are often not secure enough, and they are prone to loosening or falling off due to vibrations during vehicle operation, which in turn affects the normal operation of the alarm and reduces its anti-theft effectiveness. Summary of the Invention

[0003] In view of this, the present invention provides an anti-theft handlebar lock.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An anti-theft vehicle handlebar lock includes a main lock body and a secondary lock body, which are hinged together. The main lock body is provided with an alarm and a limiting support structure for fixing the alarm. The alarm is detachably mounted on the limiting support structure, which fixes the position of the alarm on the main lock body.

[0005] Preferably, the main lock body is recessed on the side near the secondary lock body to form an inner groove. The limiting support structure includes a supporting reinforcing rib and a limiting post disposed in the inner groove. Both the supporting reinforcing rib and the limiting post protrude from the bottom wall of the inner groove toward the alarm. The supporting reinforcing rib supports the alarm. The alarm is provided with a limiting end corresponding to the limiting post. The limiting post and the limiting end are connected in a limiting manner.

[0006] Preferably, the limiting end protrudes from the side end face of the alarm near the main lock body, the limiting end is provided with an arc-shaped strip structure, the limiting end has a limiting groove formed in the center, and one end of the limiting post extends into the limiting groove and is connected to the limiting end for limiting.

[0007] Preferably, a screw hole is provided on the limiting post, and a positioning hole corresponding to the screw hole is provided on the alarm. A screw is provided between the screw hole and the positioning hole to connect and fix the alarm to the limiting post.

[0008] Preferably, the main lock body and the auxiliary lock body are respectively recessed to form corresponding main handlebar groove and main brake groove, as well as auxiliary handlebar groove and auxiliary brake groove. A handlebar lock groove is formed between the main handlebar groove and the auxiliary handlebar groove, and a brake lock groove is formed between the main brake groove and the auxiliary brake groove.

[0009] Preferably, both the main handlebar groove and the auxiliary handlebar groove are arc-shaped groove structures, and reinforcing rib structures are protruding on the opposite groove walls of the main handlebar groove and the auxiliary handlebar groove. The reinforcing rib structures are arc-shaped, and the curvature of the reinforcing rib structures is the same as that of the main handlebar groove and the auxiliary handlebar groove.

[0010] Preferably, the depth of the main brake groove is less than the depth of the secondary brake groove on the secondary lock body, and the main brake groove is formed on both sides of the main lock body located on the alarm.

[0011] The beneficial effects of this invention are as follows: By setting a special limiting support structure on the main lock body, the alarm can be securely installed on the main lock body and will not easily fall off due to vibrations during vehicle operation. At the same time, the alarm adopts a detachable design, greatly facilitating maintenance and replacement for users. When the alarm malfunctions or needs upgrading, users can easily remove it from the limiting support structure for the necessary operations. Moreover, this hinged connection between the main lock body and the secondary lock body not only allows users to adjust the lock's shape according to actual needs to accommodate different sized handlebars, but also makes the entire anti-theft handlebar lock more convenient to carry and store. Attached Figure Description

[0012] 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 these drawings without creative effort.

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 For the appendix Figure 1 Structural breakdown diagram; Appendix Figure 3 Diagram of the alarm mounting bracket. Detailed Implementation

[0014] 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 protection scope of the present utility model.

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] This utility model provides the following technical solution: As attached Figure 1-3 As shown, this utility model discloses an anti-theft vehicle handlebar lock, including a main lock body 1 and a secondary lock body 2, which are hinged together. An alarm 3 and a limiting support structure 4 for fixing the alarm 3 are mounted on the main lock body 1. The alarm 3 is detachably mounted on the limiting support structure 4, which fixes the position of the alarm 3 on the main lock body 1. Specifically, in this design, by setting a dedicated limiting support structure 4 on the main lock body 1, it is ensured that the alarm 3 is securely mounted on the main lock body 1 and will not easily fall off due to vibrations during vehicle operation. At the same time, the alarm 3 adopts a detachable design, greatly facilitating maintenance and replacement for users. When the alarm 3 malfunctions or needs upgrading, the user can easily remove it from the limiting support structure 4 for the corresponding operation. Moreover, this hinged connection between the main lock body 1 and the secondary lock body 2 not only allows users to adjust the shape of the lock according to their actual needs to accommodate different sizes of handlebars, but also makes the entire anti-theft handlebar lock more convenient to carry and store.

[0017] Specifically, the alarm 3 in this design includes an alarm mounting base 16 and an alarm body (not shown in the figure). The alarm body is fixed to the alarm mounting base 16, which is connected to the limiting support structure 4. The alarm 3 can be a vibration alarm 3 as in the prior art, a sound alarm 3, or a composite alarm 3 that has both vibration and sound alarm functions. When a criminal attempts to break the handlebar lock, the alarm 3 can quickly detect it and emit a loud alarm sound, effectively deterring the thief and alerting the owner and those around. Moreover, the connection method between the alarm mounting base 16 and the limiting support structure 4 is reasonably designed, ensuring both the stability of the connection and facilitating disassembly and installation when needed.

[0018] Furthermore, the main lock body 1 sinks down to form an inner groove 5 near the secondary lock body 2. The limiting support structure 4 includes a supporting reinforcing rib 6 and a limiting post 7 disposed within the inner groove 5. Both the supporting reinforcing rib 6 and the limiting post 7 protrude from the bottom wall of the inner groove 5 toward the alarm 3. The supporting reinforcing rib 6 supports the alarm 3, and the alarm 3 is provided with a limiting end 8 corresponding to the limiting post 7. The limiting post 7 and the limiting end 8 are connected in a limiting manner. Specifically, in this embodiment, the supporting reinforcing rib 6 is distributed at the bottom of the inner groove 5, providing a stable and balanced supporting force for the alarm 3, preventing the alarm 3 from tilting or shaking due to uneven force. The limiting post 7 is designed to be cylindrical, and its diameter is precisely matched to the size of the limiting end 8 of the alarm 3, ensuring that the limiting post 7 can be accurately inserted into the limiting end 8, achieving a stable limiting connection. The depth of the inner groove 5 is calculated to ensure that there is enough space to accommodate the supporting reinforcing rib 6 and the limiting post 7, while also ensuring that the alarm 3 will not exceed the overall outline of the main lock body 1 after installation, so as not to affect the normal use and appearance of the anti-theft vehicle handle lock.

[0019] Furthermore, the limiting end 8 protrudes from the end face of the alarm 3 near the main lock body 1. The limiting end 8 is an arc-shaped strip structure, with a limiting groove 9 formed at its center. One end of the limiting post 7 extends into the limiting groove 9 and engages with the limiting end 8 for limiting. Specifically, in this embodiment, the arc-shaped strip structure of the limiting end 8 not only makes it more streamlined and natural in appearance, matching the overall shape of the alarm 3, but also disperses the force borne during limiting, enhancing the stability of the structure. The limiting groove 9 is located at the center of the limiting end 8, and its size and shape are adapted to one end of the limiting post 7. When the limiting post 7 extends into the limiting groove 9, the two fit tightly together, effectively preventing the alarm 3 from shifting in the horizontal direction. Meanwhile, this limiting connection method is very convenient during installation and disassembly. Users only need to align the limiting end 8 on the alarm 3 with the limiting post 7 on the main lock body 1, and gently press or pull it out to complete the installation or disassembly operation without the need for complicated tools, which greatly improves the convenience of use.

[0020] Furthermore, a screw hole 10 is provided on the limiting post 7, and a corresponding positioning hole 11 is provided on the alarm 3. A screw is installed between the screw hole 10 and the positioning hole 11 to connect and fix the alarm 3 to the limiting post 7. Specifically, in this embodiment, the screw hole 10 and the positioning hole 11 provide a more stable connection between the alarm 3 and the limiting post 7. When the user places the alarm 3 on the limiting support structure 4 and makes the limiting end 8 connected to the limiting post 7, the user only needs to pass the screw through the positioning hole 11 on the alarm 3 and screw it into the screw hole 10 on the limiting post 7 to achieve a tight connection between the alarm 3 and the limiting post 7. This connection method can not only effectively prevent the alarm 3 from falling off due to vibration or external force during use, but also ensure the stability and reliability of the alarm 3 after installation. At the same time, the screw connection method also makes it easy for the user to disassemble and replace when needed, improving the maintainability and service life of the entire anti-theft vehicle lock.

[0021] Furthermore, the main lock body 1 and the auxiliary lock body 2 are respectively recessed to form corresponding main handlebar groove 12 and main brake groove 13, as well as auxiliary handlebar groove 14 and auxiliary brake groove 15. A handlebar lock groove 18 is formed between the main handlebar groove 12 and the auxiliary handlebar groove 14, and a brake lock groove 17 is formed between the main brake groove 13 and the auxiliary brake groove 15. Specifically, in this embodiment, the design of the main handlebar groove 12 and the auxiliary handlebar groove 14 fully considers the shape and size of the handlebar. Their concave curvature matches the shape of common handlebars, allowing them to fit tightly against the handlebar and ensuring that the handlebar lock is secure and reliable when locked, and is not easily pried or moved. The main brake groove 13 and the auxiliary brake groove 15 are also concavely designed according to the characteristics of the braking device, perfectly fitting the brake components. When the brake lock groove 17 is locked, it effectively restricts the use of the brake, further enhancing the anti-theft effect. The formation of the handlebar lock groove 18 and brake lock groove 17 allows the anti-theft handlebar lock to lock both the handlebars and brakes simultaneously, greatly improving the overall security of the vehicle and making it difficult for criminals to break both locking parts at the same time to steal the vehicle. Moreover, this concave groove design facilitates precision control during the manufacturing process, ensuring the compatibility of the main lock body 1 and the auxiliary lock body 2 with the handlebars and brake components.

[0022] Furthermore, both the main handlebar groove 12 and the auxiliary handlebar groove 14 are designed with an arc-shaped groove structure. Reinforcing ribs protrude from the opposite groove walls of both the main handlebar groove 12 and the auxiliary handlebar groove 14, and these reinforcing ribs are arc-shaped with the same curvature as the main handlebar groove 12 and the auxiliary handlebar groove 14. Specifically, in this embodiment, the arc-shaped groove structure used in the main handlebar groove 12 and the auxiliary handlebar groove 14 was determined after in-depth research into the shape of the handlebar and user habits. This arc-shaped design better conforms to the curvature of the handlebar, increasing the contact area between the handlebar and the lock groove, thereby enhancing the stability of the lock. The reinforcing ribs protruding from the groove walls not only further enhance the strength of the groove walls, preventing deformation due to stress during long-term use, but also assist in positioning the handlebar. The reinforcing rib is arc-shaped, with the curvature matching that of the main handlebar groove 12 and the auxiliary handlebar groove 14. This design ensures a tighter and smoother fit between the reinforcing rib, the groove wall, and the handlebar. When the handlebar is inserted into the handlebar lock groove 18, the reinforcing rib evenly distributes the pressure of the handlebar on the groove wall, preventing localized stress concentration that could damage the groove wall. Simultaneously, the presence of the reinforcing rib increases the difficulty for thieves to break into the handlebar lock, as they must overcome the resistance of the reinforcing rib to remove the handlebar from the lock groove, significantly improving the security and reliability of the anti-theft handlebar lock.

[0023] Furthermore, the depth of the main brake groove 13 is less than the depth of the secondary brake groove 15 on the secondary lock body 2, and the main brake groove 13 is located on both sides of the main lock body 1 on the alarm 3. Specifically, in this embodiment, the design that the depth of the main brake groove 13 is less than the depth of the secondary brake groove 15 is based on a comprehensive consideration of the actual use of the braking device and the anti-theft requirements. The main brake groove 13 is located on both sides of the main lock body 1 on the alarm 3. This layout allows for a more reasonable distribution of force when locking the brake. The shallower main brake groove 13 can be fitted and locked with a part of the braking device, while the deeper secondary brake groove 15 can more firmly fix another key part of the braking device. The two work together to form a multi-layered brake locking effect. This depth difference design not only enhances the firmness of the brake lock but also adapts to the locking requirements of different types and sizes of braking devices. When criminals attempt to break the brake lock, the different depths and locking methods of the main brake groove 13 and the secondary brake groove 15 greatly increase the difficulty and time cost of their attempt, effectively improving the anti-theft performance of the vehicle. At the same time, this design also facilitates precision control during the manufacturing process, ensuring that the brake grooves on the main lock body 1 and the secondary lock body 2 can accurately fit with the braking device, thereby improving the quality and reliability of the entire anti-theft vehicle handle lock.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An anti-theft bicycle handlebar lock, comprising a main lock body and a secondary lock body, wherein the main lock body and the secondary lock body are hinged together, characterized in that: The main lock body is equipped with an alarm and a limiting support structure for fixing the alarm. The alarm is detachably mounted on the limiting support structure, which fixes the position of the alarm on the main lock body.

2. The anti-theft handlebar lock according to claim 1, characterized in that: The main lock body sinks down on the side near the secondary lock body to form an inner groove. The limiting support structure includes a supporting reinforcing rib and a limiting post disposed in the inner groove. Both the supporting reinforcing rib and the limiting post protrude from the bottom wall of the inner groove toward the alarm. The supporting reinforcing rib supports the alarm. The alarm is provided with a limiting end corresponding to the limiting post. The limiting post and the limiting end are connected in a limiting manner.

3. The anti-theft handlebar lock according to claim 2, characterized in that: The limiting end protrudes from the side end face of the alarm near the main lock body. The limiting end is set in an arc-shaped strip structure. A limiting groove is formed in the center of the limiting end. One end of the limiting post extends into the limiting groove and is connected to the limiting end for limiting.

4. The anti-theft handlebar lock according to claim 3, characterized in that: The limiting post has a screw hole, and the alarm has a corresponding positioning hole. A screw is installed between the screw hole and the positioning hole to connect and fix the alarm to the limiting post.

5. The anti-theft handlebar lock according to claim 1, characterized in that: The main lock body and the auxiliary lock body are respectively recessed to form corresponding main handlebar groove and main brake groove, as well as auxiliary handlebar groove and auxiliary brake groove. A handlebar lock groove is formed between the main handlebar groove and the auxiliary handlebar groove, and a brake lock groove is formed between the main brake groove and the auxiliary brake groove.

6. The anti-theft handlebar lock according to claim 5, characterized in that: Both the main handlebar slot and the auxiliary handlebar slot are designed with an arc-shaped groove structure. The opposite groove walls of the main handlebar slot and the auxiliary handlebar slot have protruding reinforcing ribs. The reinforcing ribs are arc-shaped and the curvature of the reinforcing ribs is the same as that of the main handlebar slot and the auxiliary handlebar slot.

7. The anti-theft handlebar lock according to claim 5, characterized in that: The depth of the main brake groove is less than the depth of the secondary brake groove on the secondary lock body, and the main brake groove is located on both sides of the main lock body located on the alarm.