Anti-pulling door structure of ground hook lock

The invention provides an anti-pulling door structure of a ground hook lock. The structure comprises a lock shell, a transverse pulling piece, a locking piece, a limiting piece and a spring bolt. Thetransverse pulling piece can move relative to the lock shell; the locking piece, the limiting piece and the spring bolt are connected to the lock shell in a rotating mode. A first driving part matchedwith the locking piece , and a second driving part matched with the limiting piece are arranged on the transverse pulling piece; a first protruding part is arranged on the locking piece, a second protruding part is arranged on the limiting piece, the structure further comprises a driving piece for driving the limiting piece to rotate towards one side of the first protruding part, and the ground hook lock can prevent force generated by a motor from damaging a roller shutter door body and the ground. 本发明提供了一种地钩锁防拉门结构，包括锁壳体、横拉件、锁定件、限位件和锁舌，所述横拉件可相对所述锁壳体移动，所述锁定件、所述限位件与所述锁舌转动连接在所述锁壳体上，所述横拉件上设有与所述所锁定件配合的第一驱动部，以及与所述限位件配合的第二驱动