Cutting-free fast tearing butt coupler and butt joint piece

Abstract

The invention relates to a cutting-free fast tearing butt coupler and a butt joint piece, as well as a fabricated part formed by the cutting-free fast tearing butt coupler, a fabricated part formed by the cutting-free fast butt coupler, and butt joint structure between the fabricated parts, and the invention consists of a raising-pulling screw cap, a support-pulling screw cap and a fabricated part longitudinal bar which are positioned at the two ends of the fabricated parts, wherein the raising-pulling screw cap and the support-pulling screw cap have the internal thread structure, the internal thread is 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 two ends of the fabricated part longitudinal bar are upset into the upset head which is clamped and connected on the 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, 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 tampered sleeve, the tail part of a connection-peg is connected with the internal thread of the 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 present invention relates to a non-shearing fast and strong butt joint fastener and a butt joint, as well as a prefabricated part composed of a non-shearing fast and strong butt joint fastener, a prefabricated part composed of a non-shearing fast butt joint buckle, and a prefabricated part and a butt joint The invention relates to a butt joint structure between prefabricated parts, which belongs to the fields of prefabricated strong fasteners and prefabricated 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 ...

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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