A claw limiting mechanism of LNG filling gun

Abstract

The utility model discloses a kind of chuck limit mechanism of LNG liquid adding gun, for limiting multiple chuck components of connecting gun seat and liquid adding gun valve seat, the chuck component includes fixed base, torsion shaft component, clamping rod and swing bar, fixed base is fixedly connected on gun seat, torsion shaft component is rotatably installed on fixed base, clamping rod and swing bar are rotatably installed on torsion shaft component, one end of clamping rod is connected with liquid adding gun valve seat, a limit ring is connected by thread screwing on the gun seat, one end of the limit ring is fixedly connected with conical ring.The utility model in the present application, when rotating limit ring makes it move towards gun seat direction, conical ring on limit ring will exert pressure on clamping rod and swing bar, based on lever principle, force the included angle between the two to increase, so that one end of clamping rod can be inserted into annular clamping groove on gun seat, ensure the firm connection of both, not only improve the convenience and safety of operation, reduce the problem of traditional spring and hole seat friction wear.

Images