Unhooking device, hoisting hanger and construction method for lowering steel reinforcement cage by hoisting hanger

Abstract

The invention discloses an unhooking device. The unhooking device comprises a hook main body, a clamping tongue and a restraining buckle, wherein the clamping tongue is rotatably assembled at the lower part of the hook main body; the restraining buckle is rotatably assembled in the middle of the hook main body; the unhooking device has a closed state and an open state; when the unhooking device isat the closed state, a whole body of the hook main body and the clamping tongue is of a hook shape; the restraining buckle is used for limiting the clamping tongue and a sealed ring is formed by therestraining buckle and the hook main body; when the unhooking device is at the open state, the clamping tongue is separated from the restraining buckle. The invention further discloses a hoisting hanger with the unhooking device and a construction method for lowering a steel reinforcement cage by the hoisting hanger. The unhooking device disclosed by the invention is simple in structure and convenient to use; the unhooking device is matched with a steel wire rope to replace a hanging steel bar to lower the steel reinforcement cage, so that the construction cost is reduced and time is saved.

Description

technical field [0001] The invention relates to the field of steel cage structure hoisting, in particular to a decoupling device, a hoisting sling and a construction method for lowering a steel cage. Background technique [0002] With the rapid development of my country's economy, more and more projects need to be constructed. Bored piles are almost involved in engineering construction projects. Due to the increasingly high construction requirements, new technologies and new processes can be used to achieve infrastructure construction requirements. high quality, high quality. [0003] Under the current construction technology, it is usually necessary to set hanging bars when the steel cage is lowered. With the lowering of the steel cage, the concrete pouring is completed, and the hanging bars cannot be reused. In the pile foundation construction of bridge engineering, the number of bored piles is large, and the demand for hanging bars is large, which increases the cost and t...

AI Technical Summary

Problems solved by technology

[0003] Under the current construction technology, it is usually necessary to install hanging bars when the steel cage is lowered. With the lowering of the steel cage, the concrete pouring is completed, and the hanging bars cannot be reused.

In the pile foundation construction of bridge engineering, the number of bored piles is large, and the demand for hanging bars is large, which increases the cost and time of construction

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