Prestressed concrete tubular pile locking mechanical quick joint

Abstract

The invention discloses a prestressed concrete tubular pile locking mechanical quick joint, and relates to a building concrete tubular pile connecting structure. Step conical holes are formed on inner holes of two ends of tubular piles; the quick joint is provided with a connecting device, and the connecting device consists of two cone expanding rings, two cone expanding plugs, two sets of fan-shaped conical pad racks, a double-head screw and a locking turntable; the cone expanding rings are of tubular bodies, a plurality of axial strip grooves are uniformly distributed on the tubular bodies,the cone expanding plugs are of frustums, the centers of the frustums are provided with opposite threaded holes, the locking turntable is jointed to the opposite end faces of two tubular piles through a plurality of balls placed on circumferential arc grooves of two sides before the two tubular piles are butted, the two cone expanding plugs are twisted on the double-head screw in the center of the locking turntable, the internal circles of fan-shaped conical blocks are sleeved on the external circles of the cone expanding plugs, a central hole of a bracket disc is sleeved on the middle part of a stud bolt, the internal circles of the cone expanding rings are sleeved on the external circles of the fan-shaped conical blocks, and the external circles of the two cone expanding rings are sleeved in the step conical holes of the front and rear tubular piles; and cone expanding butt joint is implemented by rotating the locking turntable. The quick joint is butted quickly and firmly, and improves the work efficiency.

Description

Technical field: [0001] The invention relates to a connection structure of building concrete pipe piles, in particular to a mechanical quick joint of prestressed concrete pipe piles. Background technique: [0002] The pile driver on the construction site drives the concrete pipe pile into the ground. Due to the limited height of the pile driver, the length of the pipe pile is limited, and the depth of driving into the ground is required to be much greater than the length of a single pipe pile. Therefore, after the front root pipe pile is driven into the ground to a certain depth, the back root pipe pile must be connected with the front root pipe pile by fixing up and down. The standard pipe pile structure is a ring cylinder, and a steel ring disk is respectively fixed on both ends of the ring cylinder, and the outer diameter of the ring disk is equal to the outer diameter of the ring cylinder. The extension type connection is to align and fit the upper and lower coaxial cen...

AI Technical Summary

Problems solved by technology

Circumferential welding is time-consuming and labor-intensive, and the downtime of the pile driver is long, which affects the working efficiency of the pile driver

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