Efficient connecting structure for building assembly construction reinforcing steel bars

By designing a combined structure of threaded connecting pipe and temporary limiting ring, the problems of high difficulty and low efficiency in steel bar connection during prefabricated construction were solved, achieving fast and simplified steel bar connection and improving connection strength and stability.

CN224187049UActive Publication Date: 2026-05-01CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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Patent Information

Application Number
CN202520830083.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-05-01
Estimated Expiration
2035-04-28

AI Technical Summary

Technical Problem

In existing prefabricated construction, the connection of steel bar ends is difficult and inefficient. Welding is slow and complex, and sleeve connection has limited tensile strength.

Method used

The system employs a combination structure of two first connecting pipes and one second connecting pipe. It achieves rapid connection through the design of external and internal threads. Combined with axial clearance grooves and temporary limiting rings, it simplifies the process of bending and connecting steel bars. It also utilizes radial through holes filled with concrete to enhance the connection strength.

Benefits of technology

It significantly improves the speed of rebar connection, reduces connection difficulty, simplifies the process, and has higher axial limiting strength and compressive strength.

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Abstract

The utility model relates to an efficient connecting structure for building assembly construction reinforcing steel bars, and effectively solves the problems of high difficulty and low efficiency of end connection of assembly type building reinforcing steel bars. According to the technical scheme, the device comprises two first connecting pipes and a second connecting pipe, external threads are arranged on the outer walls of the first connecting pipes, the screwing directions of the external threads on the two first connecting pipes are opposite, a first internal thread matched with the external threads is arranged at each end of the inner wall of the second connecting pipe, and the screwing directions of the two first internal threads are opposite; an axial avoiding groove is formed in the side wall of the first connecting pipe, one end of the avoiding groove is an open end, the other end of the avoiding groove is a closed end, and the open end is communicated to one end face of the first connecting pipe; the steel bar connecting device greatly improves the steel bar connecting speed, obviously reduces the connecting difficulty, is simple and practical, and has higher axial limiting strength.
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