The present invention discloses handcuff type anti-unhooking lifting hook, wherein the right ends of a mother hook and a son hook are respectively provided with an arc concave groove with both smooth side surfaces and an arc boss with both smooth side surfaces, the arc concave groove and the arc boss are hinged, the end portion of the upper end of the mother hook is provided with a snapping groove having a lock tool, and the end portion of the upper end of the son hook is provided with a snapping tooth part matched with the snapping groove. According to the present invention, an object is sleeved into the mother hook, and the snapping tooth part of the son hook is snapped into the snapping groove so as to perform safe lifting; after completing the lifting, the lock tool is opened, such that the son hook and the mother hook are separated so as to take the object out from the mother hook; and with the handcuff type anti-unhooking lifting hook, it can be ensured that the objected can not unhook from the hook, such that the object damage can be effectively prevented, and the safe accidents can be eliminated.
Handcuff type anti-unhooking lifting hook
2015-07-22
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
Anti-unhooking device and anti-unhooking method for lifting hook
European Patent Office | 2023
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