Lifting hook device and lifting method

Abstract

The invention discloses a lifting hook device and a lifting method, and relates to the field of hoisting. The lifting hook device comprises a hook body which is provided with at least one semi-closed hook cavity for hanging an object, and a first connecting end and a second connecting end which are positioned on two sides of the hook cavity; a movable hook knuckle one end of which is a positioning end and movably connected with the first connecting end, and the other end of which is a free end and used for opening and closing the coupler cavity; a connecting part the bottom of which is detachably connected with the second connecting end, wherein at least one limiting groove located in the moving path of the free end of the movable hook knuckle is formed in the connecting position, and the hook tip located at the free end of the movable hook knuckle can be completely contained in the limiting groove; a locking part which is axially arranged outside the connecting part in a sleeving manner and moves up and down along the connecting part to open and close the limiting groove; and a hanging part which is fixedly connected to the top of the connecting part and used for being connected with an external lifting appliance. According to the novel lifting hook device and the lifting method thereof, the structure is simpler, operation is convenient, safety is higher, deformation is not prone to occurring, and reliability is high.

Description

technical field [0001] The invention relates to the field of hoisting and hoisting, in particular to a hook device and a hoisting method. Background technique [0002] At present, there are many kinds of connection methods required for tethered reinforcement, so the requirements for the form of the connection device components are also increased. At present, the connection device is mainly a traditional single-hook structure, which can only realize single-point tethered connection at both ends. The safety device of the traditional hook is a combined structure of the torsion spring block. By installing the torsion spring, the block and the pin shaft at the body of the traditional hook, the block is pressed against the inner side of the hook head under the rebound force of the torsion spring to realize the prevention system. The risk of decoupling of hanging objects, but this structure has low strength against accidental impact loads, and the number of times of use is small. ...

AI Technical Summary

Problems solved by technology

The safety device of the traditional hook is a combined structure of the torsion spring block. By installing the torsion spring, the block and the pin shaft at the body of the traditional hook, the block is pressed against the inner side of the hook head under the rebound force of the torsion spring to realize the prevention system. The risk of decoupling of hanging objects, but this structure has low strength against accidental impact loads, and the number of times of use is small. It is prone to deformation after repeated use. After deformation, the torsion spring will be damaged, and even the insurance card cannot be opened, and the hanging objects cannot be smoothly detached from the hook. Cavity

And the principle of this kind of safety structure is to hold the stopper against the inner side of the hook head, so the stopper occupies part of the space of the hook cavity, resulting in a reduction in the capacity of the hook cavity itself, so the safety and reliability of the traditional hook connection are poor

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