Anti-theft bolt
By designing the hollow sleeve and spring structure in the thread groove in the anti-theft bolts, the preload force is adjusted to adapt to different environments, the problem of outdoor anti-theft bolts being disassembled by multiple jaws is solved, and the safety of outdoor facilities is improved.
Patent Information
- Application Number
- CN202422307751.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Existing anti-theft bolts are easily disassembled by multi-point jaw tools in outdoor environments, resulting in theft of facilities and components, and lack of flexible preload adjustment capabilities.
An anti-theft bolt is designed, including a connecting head, a breaking part, a head and a screw. A threaded groove is provided at one end of the head near the screw, and a hollow sleeve is connected to an inner part. There is a spring in the sleeve. The preloading force and disassembly difficulty are controlled by adjusting the length of the sleeve on the screw, and it is suitable for different outdoor environments.
It realizes flexible adjustment of preload force according to environmental needs, enhances the difficulty of disassembly, prevents illegal disassembly, and improves the safety of outdoor facilities and components.
Smart Images
Figure CN223120378U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-theft bolt. Background Art
[0002] Anti-theft bolts are usually applied in high-security scenarios or where facilities and components are prone to theft in outdoor environments. Using anti-theft bolts can effectively prevent components from being stolen. Generally, the head of an anti-theft bolt is configured with a special connection port that cannot be disassembled by conventional installation tools, and a separate disassembly tool needs to be configured by the manufacturer for disassembly. However, due to the emergence of a multi-point claw tool, it can perform multi-point support and disassembly within the connection port. Summary of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an anti-theft bolt to ensure the safety of outdoor facilities and components.
[0004] To achieve the above purpose, the utility model provides the following technical solution: an anti-theft bolt, comprising a connection head, a breaking part, a head, and a screw rod. The breaking part is arranged between the connection head and the head. One end of the head close to the screw rod is provided with a threaded groove, and a hollow sleeve is threadedly connected in the threaded groove. The hollow sleeve can be adjusted along the axial direction of the screw rod, and a spring sleeved on the screw rod is installed in the hollow sleeve.
[0005] As a further improvement of the utility model, a boss is provided at one end of the head close to the screw rod, and the thread in the threaded groove extends to the outer diameter surface of the boss.
[0006] As a further improvement of the utility model, one end of the head far from the screw rod is set as a conical surface.
[0007] As a further improvement of the utility model, a guiding surface is provided at the end of the screw rod.
[0008] As a further improvement of the utility model, an annular groove is provided on the breaking part.
[0009] The beneficial effects of the utility model: By adjusting the length of the hollow sleeve extending on the screw rod, the pre-tightening force and disassembly difficulty of the bolt can be controlled, and different pre-tightening forces can be set for different outdoor environments to facilitate self-disassembly. Brief Description of the Drawings
[0010] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0011] Figure 2 It is a schematic cross-sectional view of the overall structure of an embodiment of the utility model.
[0012] Reference numerals in the drawings: 1, connector; 2, breaking part; 3, head; 4, screw; 5, thread groove; 6, hollow sleeve; 7, spring; 8, boss; 9, conical surface; 10, annular groove. Specific embodiments
[0013] The present utility model will be further described in detail below with reference to the embodiments given in the drawings.
[0014] Refer to Figure 1-2 As shown, an anti-theft bolt includes a connector 1, a breaking part 2, a head 3, and a screw 4. The breaking part 2 is arranged between the connector 1 and the head 3. The connector 1 is used to cooperate with an installation tool for locking. The breaking part 2 separates the connector 1 from the head 3 by a relatively large torque. One end of the head 3 close to the screw 4 is provided with a thread groove 5, and a hollow sleeve 6 is threadedly connected in the thread groove 5. The hollow sleeve 6 can be adjusted along the axial direction of the screw 4. A spring 7 sleeved on the screw 4 is installed in the hollow sleeve 6. The bolt of this technical solution is installed in a counterbore. The spring 7 is compressed between the end face of the counterbore and the end face of the head 3. The length of the hollow sleeve 6 extending on the screw 4 is adjusted according to different use environments. Such a setting can control the compression length of the spring 7, that is, adjusting the hollow sleeve 6 to the left can increase the pre-tightening force, and adjusting to the right can reduce the pre-tightening force. In this solution, a boss 8 is provided at one end of the head 3 close to the screw 4, and the thread in the thread groove 5 extends to the outer diameter surface of the boss 8. The setting of the boss 8 can further extend the moving range of the hollow sleeve 6 on the screw 4 and also enhance the connection strength of the hollow sleeve 6. Since the adjusted length of the hollow sleeve 6 is different, the disassembly method of this bolt is also different. In some cases where the pre-tightening force is adjusted to the maximum, usually, drilling is first carried out, and then a polygonal connecting rod is welded in the drilled hole for disassembly. Due to the setting of the boss 8, the diameter of the drilled hole can be further enlarged, and the welding connection surface can be increased to increase the torque. In some cases where the pre-tightening force is moderate, a connecting rod can be directly welded to the head 3 for disassembly. The end of the head 3 away from the screw 4 is set as a conical surface 9. Such a setting reduces the contact surface with the disassembly tool and prevents the bolt from being disassembled through the disassembly tool. A guiding surface is provided at the end of the screw 4, and an annular groove 10 is provided on the breaking part 2. The setting of the annular groove 10 facilitates the breaking of the breaking part 2.
[0015] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as the protection scope of the present utility model.
Claims
1. An anti-theft bolt, characterized in that, It includes a connector, a breaking part, a head, and a screw rod. The breaking part is arranged between the connector and the head. One end of the head close to the screw rod is provided with a thread groove, and a hollow sleeve is threadedly connected in the thread groove. The hollow sleeve can be adjusted along the axial direction of the screw rod, and a spring sleeved on the screw rod is installed in the hollow sleeve.
2. The anti-theft bolt according to claim 1, wherein, One end of the head close to the screw rod is provided with a boss, and the thread in the thread groove extends to the outer diameter surface of the boss.
3. The anti-theft bolt according to claim 2, characterized in that, One end of the head far from the screw rod is set as a conical surface.
4. The anti-theft bolt according to claim 1, wherein, The end of the screw rod is provided with a guiding surface.
5. The anti-theft bolt according to claim 1, characterized in that, An annular groove is provided on the breaking part.