Multi-headed fast tearing butt coupler and fabricated part

Abstract

The invention relates to a multi-headed fast tearing butt coupler and a butt joint piece, and a fabricated part formed by the multi-headed fast tearing butt coupler, and butt joint structure between the fabricated parts, and the invention includes a plug, a support-pulling screw cap is an internal thread structure, the internal thread is a tearing screw thread, the center of the cap bottom is provided with a steel bar hole, the periphery of the steel bar hole is a steel bar upset head clamping table, the plug is hollow, the center of the hollow bottom of the plug is provided with a steel bar hole, the periphery of the steel bar hole is a steel bar upset head clamping table, a pressure spring is positioned inside the support-pulling screw cap, one end of the pressure spring is positioned on the steel bar upset head clamping table, the other end thereof is provided with a tapered sleeve formed by two or a plurality of pieces, a screw thread sleeve is rotatably connected inside the support-pulling screw cap and locates the displacement on the tapered sleeve, the tail part of a connection-peg is connected with the internal thread of a raising-pulling screw cap, and the head part of the connection-peg has the ball-lacking shape and is matched with the tampered sleeve in an elastic joint way.

Description

technical field [0001] The invention relates to a multi-head quick strong pull butt joint fastener and a butt joint, a prefabricated part composed of a multi-head fast strong pull butt joint fastener, and a butt joint structure between the prefabricated part and the prefabricated part, belonging to the prefabricated strong pull fastener and prefabricated field of parts manufacturing. Background technique [0002] The patentee has the authorized announcement number CN100348803C and the name "upper screw and lower top connection pile buckle and prefabricated parts". The pipe pile is composed of longitudinal steel bars, wherein the tension nut and the top tension nut are internal thread structures, and the internal thread is a strong wire buckle. There is a steel bar hole in the center of the bottom of the cap, and the periphery of the steel bar hole is a steel bar heading card platform. The two ends of the longitudinal steel bar of the pipe pile are upset and clamped on the c...

AI Technical Summary

Problems solved by technology

[0005] Its objective reality is: in the current detection standard, the detection is the stress transmission, but in the background technology, after the pipe pile after butt joint is pressed into the ground, due to the steel bar (rod) heading and strong There may be a very small amount of poor contact between the connecting rods in the fastener. Although this kind of poor contact is within the scope of reliable docking, it will not have any impact on the quality of butt joints between pipe piles, but due to The pipe piles after docking are pressed into the ground, which cannot be matched with the current testing standards and testing methods, so a very small number of testing results according to the current standards are qualified but not ideal.

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