Bolt

CN222577103UActive Publication Date: 2025-03-07HEBEI TIANCHUANG PIPE
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Patent Information

Application Number
CN202421500085.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-03-07
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

The buffer structure of the existing anti-collision guardrail is complex and inconvenient to install, which increases costs.

Method used

A bolt is designed, including a nut and a screw. A circular hole is provided inside the shoulder section of the screw. The diameter of the circular hole is the same as the inner diameter of the thread section. A solid easily broken part is set between the circular hole and the thread section. When the screw is subjected to a certain force, the easily broken part can fall off, realizing the automatic falling off of the column.

Benefits of technology

There is no need to set up buffer blocks, reduce costs, streamline structure, facilitate installation, and automatically fall off the columns on the guardrail, improving the safety performance of the guardrail.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222577103U_ABST
    Figure CN222577103U_ABST
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Abstract

The utility model discloses a bolt. The bolt comprises a nut and a bolt body, the screw rod comprises a shoulder rod section and a threaded section, the shoulder rod section is connected with the nut, and the threaded section is connected with the shoulder rod section; a round hole is formed in the shoulder rod section and is coaxial with the threaded section, the diameter of the round hole is the same as the inner diameter of the external thread on the threaded section, and a gap is formed between the round hole and the threaded section, so that an easy-to-break part is formed from the position, connected with the threaded section, of the shoulder rod section to the gap part between the round hole in the axial direction of the screw rod. According to the embodiment of the invention, the circular hole is formed in the shoulder rod section of the screw rod, the diameter of the circular hole is set to be the same as the inner diameter of the thread of the thread section, and the solid part is arranged between the circular hole and the thread section, so that the solid part, from the circular hole to the thread section, of the shoulder rod section forms the easily-broken part; when the easy-to-break part is applied to the field of road anti-collision guardrails, the cost can be reduced, the structure is simplified, and installation is convenient.
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