Connecting piece for fire hose for railway

The utility model provides a connecting piece for a fire-fighting water pipe for a railway, which relates to the technical field of fire-fighting equipment and comprises a connector and a butt joint, the butt joint is fixedly connected with an extension pipe capable of being attached to the inner wall of the connector, one end of the connector is fixedly connected with a plurality of clamping blocks, and the clamping blocks are fixedly connected with the connector. The clamping blocks are arranged in a circumferential array mode, clamping grooves allowing the clamping blocks to be inserted are formed in the positions, corresponding to the clamping blocks, of the butt joint, the butt joint is rotationally connected with an installation ring, and the installation ring is fixedly connected with insertion blocks capable of clamping the clamping blocks. After the clamping block is inserted into the clamping groove, the positioning assembly loosens the installation ring, the clamping block is clamped by the inserti