Container lifting hooks, also known as container locks, are simple lifting tools that can be used as a substitute for semi-automatic spreaders when lifting requirements are small. The utility model has the advantages of simple operation and high price, and is widely used for lifting and unloading container operations in a factory workshop.

When the container is hoisted to the vehicle bearing surface, the corner hole of the bottom of the container just falls on the position where the lock is installed. By rotating the handle of the lock, the lock will be fixed at a predetermined corner position (usually 90 degrees or 70 degrees), the lock is locked. For the lift type lock, the handle is pushed longitudinally to lift the lock head, extend into the inner cavity of the bottom corner of the container, and then rotate to a predetermined angle to lock the container angle. Some rotary locks have a tightening device. By tightening, the lock head can be pressed down to the bottom surface of the inner cavity of the corner piece to prevent the corner of the box from being lifted, thus ensuring that the locking is safer and more reliable.

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