STZSJ0325A500092,Back Hook

The rear locking hook is a metal hitch installed at the rear of a truck's frame. Its core functions are to connect to towing equipment​  (such as trailers) and withstand immense towing forces.

​Core Function

• Connecting the Trailer:
• The trailer's kingpin engages with the hook's latch, creating a mechanical connection between the tractor and the trailer.
• Transmitting Tractive Force:
• During vehicle operation, the rear hook transmits the tractor's driving force to the trailer, serving as the key load-bearing point for power transfer.

 Applications

• Ensuring Transport Safety:
• The hook's locking mechanism must be robust and reliable to prevent accidental trailer detachment due to bumps or impacts during travel, which could lead to serious accidents.
• Recovery and Extraction:
• When a vehicle is stuck in mud or has broken down, the rear hook can serve as a recovery anchor point for connecting a tow rope and performing a pull-out rescue.
• Load Capacity:
• Depending on the truck's tonnage, the rear hook must have a corresponding strength rating to bear the total mass of the trailer.