The invention discloses a safety lifting hook for lifting a tower crane. The safety lifting hook comprises a lifting cylinder, a connecting plate and a lifting hook body; a movable pulley block is fixedly arranged above the lifting cylinder, a sliding groove is formed in the inner wall of the lifting cylinder, a limiting block is arranged on the sliding groove, a groove matched with the limiting block is formed in the outer edge of the connecting plate, the connecting plate is glidingly connected into the sliding groove through the groove and the limiting block and can move up and down along the sliding groove, the upper portion of the lifting hook penetrates through the bottom of the lifting cylinder and is fixed to the connecting plate, a buffer spring is arranged between the lower portion of the connecting plate and the bottom of the lifting cylinder in a sleeved mode, and a self-locking plate is further arranged on the lifting hook. The buffer spring can disperse the gravity of a lifted object to the lifting cylinder, and the lifting object can be prevented from rotating in the air in the lifting process through arrangement of the limiting block, so that the use safety of the lifting hook is enhanced.
本发明公开了一种用于塔吊吊装的安全吊钩,包括吊装筒、连接板以及吊钩,吊装筒的上方固定设有动滑轮组,吊装筒的内壁上设有滑槽,滑槽上设有限位块,连接板的外沿上设有与限位块配合的凹槽,连接板通过凹槽和限位块滑动连接在滑槽内并可沿滑槽上下动作,吊钩的上方穿过吊装筒的底部并固定在连接板上,连接板的下方和吊装筒底部之间套设有缓冲弹簧,吊钩上还设有自锁板,本发明的缓冲弹簧可以将吊装物件的重力分散到吊装筒,再有,通过设置限位块可以防止吊装物件在吊装过程中在空中发生转动,加强了吊钩的使用安全性。
Safety lifting hook for lifting tower crane
用于塔吊吊装的安全吊钩
2021-12-24
Patent
Electronic Resource
Chinese