Hook unhooking device

• Main Authors: ZHANG JIANFENG, SANG EN, YASUTSUNE, YANG YONGHUI, ZHANG YANNIAN, XUE QIANG, LIU YANDING
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model relates to a lifting hook unhooking device which comprises a lifting hook and a lifting hook frame integrally cast and formed with the lifting hook, an unhooking prevention plate is hinged to the lifting hook frame, a reset spring is installed between the upper end of the unhooking prevention plate and the side wall of the lifting hook frame, and the unhooking prevention plate seals a lifting opening of the lifting hook under the action of the reset spring; the lifting hook is sleeved with a limiting ring, a fixing ring is fixed to one end of the limiting ring, a first steel wire pull rope capable of preventing the lifting hook from shaking is fixed through the fixing ring, an inserting ring is fixed to the upper end of the limiting ring, a second steel wire pull rope used for opening the anti-unhooking hook plate is inserted through the inserting ring, and one end of the second steel wire pull rope is fixed to the anti-unhooking hook plate; the device has the advantages of being simple in s