The invention provides a gas valve and
pressure switch integrated structure which is characterized in that a contact head, a
piston, a
stator plate and a rotor plate are all mounted in a
valve seat; one end of the
piston is connected with the contact head; the other end of the
piston is in contact with the rotor plate; the contact head and the piston can axially move in the
valve seat; in the
free state, the contact head and the piston stay on the left-most side under the action of a first spring; the rotor plate clings to the
stator plate under the action of a second spring; when in gear, the integrated valve contact head and the piston are subjected to
external pressure and contracted inward, and the rotor plate is pushed by the piston to be separated from the
stator plate; and at the moment, a gas inlet is disconnected from a gas exhaust port, and a circuit is turned off. According to the gas valve and
pressure switch integrated structure, a gas circuit control valve and a
pressure switch are integrated, thereby eliminating one procedure for the handing feeling of idle gear positioning, and then effectively improving the hand feeling of gear shifting; and besides, one procedure for hole
machining on a control device shell is eliminated,
machining of a shifting block or a spline housing groove and bulges is reduced, and the part
machining and
assembly cost is reduced.