Anti-tripping connecting piece structure of building steel structure

By introducing a square base shaft and cotter pin design into the steel structure connectors, the problem of easy bolt pull-out was solved, enabling a simple and efficient installation process, improving construction efficiency and reducing labor costs.

CN223690107UActive Publication Date: 2025-12-19SHENZHEN HUAZHU TECH CONSTR GRP CO LTD
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Patent Information

Application Number
CN202520034961.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-12-19
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

In existing building steel structure connections, bolted connections are prone to nut rotation and disengagement, resulting in complex, inefficient, time-consuming, and labor-intensive installation operations.

Method used

Design a steel structure anti-disengagement connector structure. By setting a square base shaft and a cotter pin between the bolt head and the threaded post, the radial gap between the bolt head and the threaded post is locked by inserting the locking bolt into the cotter pin. The nut can be easily tightened by combining the operating hole on the crossbeam.

Benefits of technology

It effectively prevents the bolt nuts from coming off under vibration or other adverse conditions, simplifies installation operations, improves construction efficiency, and saves labor costs.

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Abstract

The utility model relates to an anti-tripping connecting piece structure of a building steel structure, which comprises a column, a cross beam and a bolt, the cross beam is connected with the column through the bolt, and the anti-tripping connecting piece structure is characterized in that the column and the cross beam are both of a rectangular structure, the column is composed of a wall plate, a plurality of square holes and round holes are formed in the wall plate, and the bolt comprises a bolt nut, a locking bolt and a bolt head. A square base shaft is arranged between the bolt head and the threaded column, a cotter pin is arranged on the end face of the threaded column, and the locking bolt is fixedly inserted into the cotter pin and used for locking the bolt. The locking bolt is inserted into the cotter pin in the threaded column, so that the radial clearance state between the threaded column and the bolt head is converted into the locking state, and the locking state can prevent the problem that the nut is accidentally tripped when the threaded column is vibrated or under other adverse conditions; and secondly, when the square basic shaft of the bolt on one side of the steel structure is limited and clamped with the square hole, the bolt nut can be tightened on the other side, so that the mounting operation is simple, the efficiency is high, and the comprehensive cost of manpower is saved.
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