Quick connector for concrete square piles

Abstract

The invention relates to a quick connector for concrete square piles. The quick connector comprises an upper nut pre-embedded in the lower part of an upper pile section, a lower nut pre-embedded in the upper part of a lower pile section, a connecting inserting rod, a middle connecting sleeve and a compression spring, wherein the connecting inserting rod comprises an external threaded section, a large conical section, a transition section, a small conical section and a conical top head section; the quick connector further comprises an elastic clamp spring, the peripheral surface of the elastic clamp spring is a cylindrical surface and the inner hole of the elastic clamp spring is a conical hole; the middle connecting sleeve is mounted in the upper inner hole cavity of the lower nut and is in threaded connection with the lower nut; the elastic clamp spring and the compression spring are tightly pressed in the inner hole cavity of the lower nut from top to bottom; the external threaded section is in threaded connection with the lower part of the upper nut; the large conical section is in contact fit with the inner hole surface of the middle connecting sleeve; the small conical surface is in contact fit with the inner hole surface of the elastic clamp spring; the conical top head extends out of the lower end of the elastic clamp spring; and a limiting end surface formed between the conical top head and the small conical section is in hooking connection with the lower end surface of the elastic clamp spring in a matched manner, so that the upper square pile section and the lower square pile section are connected in the axial direction. The quick connector can economize the installation space.

Description

technical field [0001] The invention relates to a mechanical connection mechanism between prestressed concrete square piles in the construction field, in particular to a quick connection joint for concrete square piles capable of realizing quick connection of square piles. Background technique [0002] Prestressed concrete square pile has the advantages of high vertical bearing capacity of a single pile, factory-like production, fast construction speed, and reliable quality. It has been widely used in many fields such as industrial and civil buildings, railway terminals, and has become one of the most widely used pile types in my country. one. The connection between traditional prestressed concrete square piles is usually electric welding. During the construction process, equipment such as electric welding machines and power cords are needed, and the process is complicated. Especially when working at heights, dragging power lines, electric welding machines and other equipmen...

AI Technical Summary

Problems solved by technology

With this card structure, during the construction process, workers have to place the blocks on the gasket one by one, and also adjust the positions of multiple blocks. In this way, it will take a long time to install and align

In addition, when the middle card cannot be placed in place, the upper and lower square piles cannot be connected successfully at one time, and need to be reworked and adjusted again, which further increases the time-consuming installation and reduces the construction efficiency.

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