Construction lifting hook structure

Abstract

The invention relates to the field of construction technology, particularly to a construction lifting hook structure of lifting up a stirrup cage. The construction lifting hook comprises a lifting rod and a connecting rod. One side of the lifting rod is provided with inclined catching grooves, the connecting rod is provided with inclined inserting lugs inserted inside the inclined catching grooves, wherein the inclined catching grooves are through grooves, and the inclined inserting lugs are inserted into the inclined catching grooves and penetrate out of the other ends of the inclined catching grooves; the front end of every inclined inserting lug is a vertical plane, and every inclined inserting lug is provided with a through hole; one side of the lifting rod is provided with a limiting inserting strip; a hook comprises a straight connecting section, a bearing section and a special-shaped free section, a locking hook is hinged to the straight connecting section, the upper portion of the special-shaped free section is provided with a pin hole in the direction perpendicular to the plane where the hook is disposed, the free end of the locking hook is provided with a pin hole corresponding to the pin hole of the hook, the special-shaped free section and the free end of the locking hook are fixedly connected through a pin inserted into the pin holes; the lifting rod is provided with a hooping piece for clamping the lifting rod and the connecting rod. The construction lifting hook structure is simple in structure, low in cost, convenient to mount and dismount, reusable and long in service life. During application of the construction lifting hook structure, the stirrup cage is low in sway, stable in lifting and safe in operation.

Description

technical field [0001] The invention relates to the technical field of construction, and more specifically relates to a construction hook structure for lifting a tendon cage. Background technique [0002] The general construction process of pile foundation reinforcement cage installation is as follows: the reinforcement cage is transported to the site, the crane is hoisted into the hole, the appropriate length of the lifting ring is processed according to the positional relationship between the reinforcement cage and the hole, the lifting ring is welded to the reinforcement cage, the position of the reinforcement cage is adjusted, and the The steel cage is fixed. The existing technology has the following disadvantages. Due to the unevenness of the ground at the orifice, the lifting ring needs to be processed separately according to the site conditions every time, which is time-consuming and labor-intensive. After one use, it needs to be cut off from the steel cage by gas...

AI Technical Summary

Problems solved by technology

The existing technology has the following disadvantages. Due to the unevenness of the ground at the orifice, the lifting ring needs to be processed separately according to the site conditions every time, which is time-consuming and labor-intensive. After one use, it needs to be cut off from the steel cage by gas welding, which is basically scrapped. Welding, welding quality cannot be guaranteed

For example, Chinese Patent No. 201220372273.5 discloses a pile foundation reinforcement cage ring, which is inserted into the lower tube through the upper tube and adjusted up and down through the vertically arranged pin holes on the upper tube and the lower tube. There are pin holes, the lower tube is a hollow tube, its strength is not high, and its tensile and load-bearing capacity is not high in some steel cages, and cracks are prone to appear at the overhead holes, which will affect the hoisting safety of the steel cage; at the same time, it adopts The anti-floating clip is not completely fixed on the steel cage, and it is easy to slide out

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