Automatic unhooking lifting appliance

Abstract

The invention relates to the technical field of lifting appliance devices, and discloses an automatic unhooking lifting appliance. The automatic unhooking lifting appliance comprises a fixing frame, a lifting hook, an unhooking assembly and a first driving piece; the lifting hook comprises a lifting hook body and a locking part, one end of the lifting hook body is rotationally arranged on the fixing frame, a bent hook is arranged at the other end of the lifting hook body, and the locking part is arranged on the lifting hook body; the unhooking assembly comprises an elastic piece and a locking ring, the two ends of the elastic piece are connected with the bent hook and the locking ring respectively, the locking ring is slidably connected to the bent hook through the elastic piece, and the locking ring can be matched with the locking part in a clamped mode so as to block an opening of the bent hook; or, the locking ring is separated from the locking part and slides under the driving of the elastic piece so as to expose the opening of the bent hook; the output end of the first driving piece is hinged to the lifting hook body; and when the locking ring exposes the opening of the bent hook, the first driving piece drives the lifting hook body to rotate relative to the fixing frame, so that the opening of the bent hook faces downwards. The bent hook can be opened by the locking ring through the elastic piece, the structure is simplified, and the automatic unhooking efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of sling devices, in particular to an automatic decoupling sling. Background technique [0002] When using a spreader for lifting and loading and unloading of goods, the goods are usually hung by hooks. After the goods are hoisted to the predetermined position, manual decoupling is required. The decoupling operation is difficult, the efficiency is low, and it is easy to cause injury to the operator. Safety Sex is lower. [0003] The hook of the existing spreader generally has the function of automatic decoupling. At least two driving parts, such as motors, hydraulic cylinders or cylinders, etc. are installed on the hook or the crown frame, and one of the driving parts drives the blocking part relative to the hook. Move to block or open the hook. Then, another driving part can drive the hook to swing or rotate, so that the goods are separated from the hook, and the automatic unhooking function is realized. ...

AI Technical Summary

Problems solved by technology

The structure of the above-mentioned spreader is complicated, the decoupling operation is cumbersome, the energy consumption is high, and the efficiency is low

Images