| 摘要 |
A safety device for a trailer connector includes a lock base, a hook and a lock core. The lock base comprises an engaging trough and a hole therein. The hole is to receive the hook therein, and the lock core in the lock base controls movement of the hook. The hook comprises a sliding section and an engaging section. The engaging trough of the lock base is for an edge of a connector to insert therein. The engaging section of the hook tightly engages with the inner wall of a spherical recess of the connector to prevent the lock from being broken.
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