Locking mechanism and wire supporting rod sleeve head

The utility model relates to a locking mechanism and a wire supporting rod sleeve head. The locking mechanism comprises a locking fixing seat, and a pressing rod, a sliding block, an extension spring, a telescopic spring, a telescopic rod and a spring bolt which are arranged on the locking fixing seat, the sliding block is fixedly mounted at the bottom of the pressing rod, and a slot is formed in the sliding block; a telescopic head is fixed to the bottom of the telescopic rod, the telescopic head is in sliding fit with the vertical guide rail, and the telescopic head is provided with an inclined plane with the same inclination as the inclined plane on the pressing rod; and the telescopic spring is arranged on the telescopic rod in a sleeving mode, one end of the spring bolt is rotationally installed on the locking fixing base and is opposite to the sliding block, and the other end of the spring bolt is inserted into the inserting groove to be locked or slides out of the inserting groove to be unlocked. Throu