Lowering device for pile foundation reinforcement cage

Abstract

The invention provides a lowering device for a pile foundation reinforcement cage. The lowering device comprises an inner cylinder, an outer cylinder, a limiting plate, a limiting column and a rope; the outer cylinder is slidably arranged on the outer wall of the inner cylinder in a sleeving mode, the limiting plate limits the outer cylinder, and the limiting column is used for controlling movement of the limiting plate; the rope is connected to the top end of the limiting column and used for driving the limiting column to rotate. The limiting plate is extruded through the limiting column, one end of the limiting plate extends out of the inserting opening, the outer cylinder is locked on the outer side wall of the inner barrel, then the position of the annular space is locked, a steel bar head at the lower end of a steel bar column is inserted into the annular space, and the steel bar column and the outer cylinder are bound and fixed through a binding wire. And in the lowering process, the steel bar head is hidden, so that the steel bar head is prevented from frequently colliding with the inner wall of the pile foundation hole, the effect of protecting the inner wall of the pile foundation hole is achieved, and the lowering difficulty of the steel bar cage is reduced. The limiting plate retracts into the inner cylinder, and locking of the limiting plate on the inner cylinder is relieved; and the inner cylinder can be taken out through the rope, so that the inner cylinder is recycled.

Description

technical field [0001] The invention relates to the technical field of lowering reinforcement cages, in particular to a lowering device for reinforcement cages for pile foundations. Background technique [0002] During the construction of the pile foundation, it is necessary to lower the cylindrical reinforcement cage into the pile foundation hole. At present, after the steel cage is manufactured, there are many exposed steel bar heads at the lower end; when the steel bar cage shakes during lowering, the steel bar heads at the lower end of the steel bar cage easily touch the inner wall of the pile foundation hole; Collision friction or insertion between the inner wall of the pile foundation hole, and then the lowering of the reinforcement cage is blocked, and the position of the reinforcement cage needs to be frequently adjusted up and down; moreover, the inner wall of the pile foundation hole is frequently collided by the reinforcement cage, which is easy to collapse and da...

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the reinforcement cage of the pile foundation in the prior art is easily collided with the inner wall of the pile foundation hole during the lowering process, causing its lowering to be hindered, thereby providing a pile foundation reinforcement cage the lowering device

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