Explosion-proof water meter

The invention discloses an explosion-proof water meter. The explosion-proof water meter comprises a shell, wherein a water pipe is connected into the shell; a connecting groove is formed in the end ofthe water pipe; a sliding plate is movably arranged in the connecting groove; a fixing mechanism connected with the sliding plate is arranged in the shell; a telescopic spring is fixedly connected between the sliding plate and the inner bottom wall of the connecting groove; a transverse plate is fixedly connected to the outer wall of the shell; a first self-reset switch is fixedly installed on the upper side wall of the transverse plate; a pressing rod penetrating through the inner bottom wall of the connecting groove and extending to the upper side of the first self-reset switch is fixedly connected to the lower side wall of the sliding plate; and an electric heating wire connected with the first self-reset switch is arranged in the water pipe. When accumulated water in the water pipe isfrozen and expands, the e