An integrated structure of gas valve and pressure switch

Abstract

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.

Description

technical field [0001] The invention belongs to the field of vehicle gearboxes and relates to an integrated structure of an air valve and a pressure switch. Background technique [0002] The air circuit control valve and the pressure switch of the traditional gearbox are two parts, which are respectively assembled on the casing of the operating device, and the respective contacts are respectively matched with the dial or the spline sleeve in the operating device. There are grooves or raised structures on the part where the dial / spline sleeve is in contact with the air circuit control valve / pressure switch. When shifting gears, the shift head / spline sleeve rotates, and the grooves or protrusions on it drive the contacts of the air circuit control valve / pressure switch to compress or extend, further causing the air circuit control valve / pressure switch to be turned on and off. [0003] Both the air control valve and the pressure switch will affect the shift feel. Due to the a...

AI Technical Summary

Problems solved by technology

[0003] Both the air control valve and the pressure switch will affect the shift feel. Due to the actual processing deviation, the neutral feel of the air control valve and the pressure switch may not be in the same position, which will affect the shift feel

In addition, the housing of the operating device needs to be equipped with relevant holes for the air circuit control valve and pressure switch, and the relevant dials and spline sleeves must also be designed with corresponding grooves or protrusions to cooperate with them. The structure is complicated and the cost is high.

Images