Full lead type clock spring with secondary lock

The utility model discloses a full lead type clock spring with a secondary lock, which comprises an upper shell and a lower shell, the upper shell is buckled on the lower shell, the upper shell and the lower shell are fixedly connected through a connecting screw, the side of the upper shell and the side of the lower shell are jointly sleeved with a locking assembly, a clamping piece is fixedly welded at the bottom end of the upper shell, and the clamping piece is fixedly welded at the bottom end of the lower shell. A clamping groove matched with the clamping piece is formed in the top end of the lower shell; the locking assembly comprises a first fastener, a second fastener and a bolt, the first fastener and the second fastener are both of an arc-shaped structure, and the inner walls of the sides, close to the upper shell and the lower shell, of the first fastener and the second fastener are each provided with two limiting pieces which are oppositely arranged in parallel. The first fastener and the second fas