Automatic unhooking device, lifting hook and method

Abstract

The invention discloses an automatic unhooking device, a lifting hook and a method. The automatic unhooking device comprises a plurality of limiting parts which are fixedly connected to a lifting hookbody and are provided with through holes, and a flexible rope-shaped part which penetrates through the plurality of limiting parts, the arrangement shape of the limiting parts is matched with the shape of the lifting hook body; the limiting part positioned at the head position in the plurality of limiting parts is fixed on a movable part of the lifting hook body; and when force away from the direction of the limiting part located at the head position is applied to the flexible rope-shaped part, the flexible rope-shaped part can drag the movable part of the lifting hook body. According to theautomatic unhooking device, the lifting hook and the method, parts capable of facilitating construction are additionally arranged on an existing lifting hook, and the existing lifting hook is improvedin a targeted mode, so that treating high-position parts which are difficult to install is conveniently carried out in the construction process, and construction is further facilitated.

Description

technical field [0001] The invention relates to the field of engineering construction, in particular to an automatic decoupling device, a hook and a method. Background technique [0002] Crane is a kind of lifting and handling machinery widely used in ports, workshops, electric power, construction sites and other places. The name of the crane is the unified title of lifting machinery. Usually called cranes are mainly car cranes, crawler cranes and tire cranes. The usefulness of the crane lies in hoisting equipment, emergency rescue, lifting, machinery, and rescue. [0003] The executive mechanism of the crane often uses a hook. The general structure of the existing hook is to add a mechanism that can be switched on the main body of the hook. This single hook is simple to manufacture and easy to use, but the force is not good. For workplaces with a lifting capacity of less than 80 tons; when the lifting capacity is large, double hooks with symmetrical forces are often used...

AI Technical Summary

Problems solved by technology

[0004] The inventor believes that when the hooks used by the existing cranes need to drop heavy objects from high places, people often need to go up to the high places to open the pins and manually unhook them. However, for example, when assembling iron towers, it is necessary to lift When it comes to the legs of the turret, the tower leg is about 6 meters high. The tower leg of the turret is generally a very long angle iron, and people cannot climb up to open the pin manually.

Images