Special clamp for safety valve

The invention relates to a clamp, and discloses a special clamp for a safety valve. The special clamp comprises a slide rail which is in a shape of a rectangular frame, and a plurality of clamping blocks which cling to the front end and the rear end of the slide rail and can slide along the slide rail direction, wherein adjacent clamping blocks are connected with a plurality of compressed return springs; symmetric grooves of which the surfaces are provided with nylon cushions are formed in contact surfaces of the adjacent clamping blocks; baffle plates which are fixedly connected with the front end and the rear end of the slide rail are arranged at the right ends of the clamping blocks; a cylinder is fixedly connected to the right end surface of the slide rail; a pushing rod of the cylinder is fixedly connected to the right end surface of the rightmost clamping block. According to the special clamp for the safety valve, the design that the cylinder is used for pushing the clamping blocks is provided, so that