Connecting piece for concrete prefabricated part and construction method: Fid-Bau Portal

Connecting piece for concrete prefabricated part and construction method

YANG JIE

The invention discloses a connecting piece for a concrete prefabricated part and a construction method, and relates to the technical field of building construction. Comprising a first connecting part and a second connecting part, the first connecting part comprises a first nut and a connecting screw rod, and the second connecting part comprises a second nut, a spring, a special-shaped nut and a fixing sleeve; the first nut and the second nut are arranged at the two ends of the concrete prefabricated part respectively, the spring, the special-shaped nut and the fixing sleeve are sequentially arranged in a nut hole of the second nut from bottom to top, one end of the spring is connected with the special-shaped nut, the other end of the special-shaped nut makes contact with one end of the fixing sleeve, one end of the connecting screw is connected with the first nut, and the other end of the connecting screw makes contact with the other end of the fixing sleeve. The other end penetrates through the fixing sleeve and is connected with the special-shaped nut. According to the invention, the traditional screw and nut screwing installation mode is changed, the precise mechanical property of the thread principle is retained, the connection precision and the connection effect are improved, the installation time is saved, and the concrete prefabricated part is safer to install and splice at high altitude.

本发明公开了一种用于混凝土预制件的连接件及施工方法，涉及建筑施工技术领域。包括第一连接部和第二连接部，第一连接部包括第一螺母和连接螺杆，第二连接部包括第二螺母、弹簧、异形螺母和固定套；第一螺母和第二螺母分别设置于混凝土预制件的两端，弹簧、异形螺母和固定套由下至上依次设置于第二螺母的螺母孔中，弹簧的一端与异形螺母连接，异形螺母的另一端与固定套的一端相接触，连接螺杆的一端与第一螺母连接，另一端贯穿固定套并与异形螺母连接。本发明改变了传统的螺丝与螺母转拧入安装的方式，保留了螺纹原理的精密力学性能，并提高连接精密度与连接效果，节约了安装时间，在高空安装拼接混凝土预制件时更为安全。

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