CN-122014881-A - Gas reset integrated valve

CN122014881ACN 122014881 ACN122014881 ACN 122014881ACN-122014881-A

Abstract

The application provides an air reset integrated valve, which comprises a valve body assembly, a push rod assembly and an upper valve rod assembly, wherein the push rod assembly is arranged on the valve body assembly to form an upper valve rod accommodating space, the valve body assembly comprises a valve body provided with a valve rod cavity, a rear cover and a valve seat which are arranged on two sides of the valve rod cavity and are open, a valve rod assembly arranged in the valve rod cavity, a rear cover O-shaped ring and a return spring, the valve rod assembly comprises a valve rod and five sealing rings sleeved on the valve rod, one end of the valve rod, which faces the rear cover, is provided with a spring groove for accommodating the return spring, two ends of the return spring are respectively abutted against and connected with the bottom surface and the rear cover of the spring groove, the upper valve rod accommodating space is connected with the valve rod cavity in an air way, and the bottom surface of the spring groove is provided with a return air way penetrating through the valve rod to be connected with the upper valve rod accommodating space. The application ensures normal gas path on-off control function, and can realize spring reset by virtue of pneumatic force, so that the spring has more reliable performance and longer service life.

Inventors

WANG JILI
LIU BAO
XIA YI
LI YONGSHUN
PAN QINFENG

Assignees

浙江亿日气动科技有限公司

Dates

Publication Date: 20260512
Application Date: 20241111

Claims (7)

1. The integrated valve is characterized by comprising a valve body assembly, a push rod assembly and an upper valve rod assembly, wherein the push rod assembly is arranged on the valve body assembly, the push rod assembly and the valve body assembly form an upper valve rod accommodating space, the upper valve rod assembly is arranged in the upper valve rod accommodating space, the valve body assembly comprises a valve body provided with a valve rod cavity, a rear cover and a valve seat which are arranged on two sides of the valve rod cavity and are open, a valve rod assembly arranged in the valve rod cavity, a rear cover O-shaped ring and a return spring, The valve rod assembly comprises a valve rod and five sealing rings sleeved on the valve rod, a spring groove for accommodating the return spring is formed in one end, facing the rear cover, of the valve rod, and two ends of the return spring are respectively abutted against and connected with the bottom surface of the spring groove and the rear cover; The upper valve rod accommodating space is connected with the valve rod cavity through an air passage, and the bottom surface of the spring groove is provided with a reset air passage penetrating through the valve rod and connected with the upper valve rod accommodating space; An annular airtight groove is formed in the outer surface, connected with the rear cover, of the opening end face of the valve rod cavity, and the rear cover O-shaped ring is arranged in the annular airtight groove and used for preventing gas leakage from the surface, connected with the rear cover, of the valve rod cavity.
2. The gas reset integrated valve of claim 1, wherein the valve body assembly further comprises a piston and a piston V-ring, the piston and piston V-ring disposed in the valve seat.
3. The integrated valve of claim 1, wherein the valve body defines a first air inlet opening in communication with the upper stem receiving space, and wherein the upper stem assembly is configured to open and close the air flow from the first air inlet opening.
4. The gas reset integrated valve of claim 3, wherein the upper stem assembly includes a spring, a lower stop, a middle spacer, two upper stem O-rings, an upper stop, and an upper stem, wherein, The upper valve rod is characterized in that a spring groove is formed in one end, facing the valve rod cavity, of the upper valve rod, the other end of the upper valve rod is connected with the ejector rod assembly, one end of the spring is arranged in the spring groove, the other end of the spring is connected with the bottom surface of the upper valve rod accommodating space, the lower stop block, the upper valve rod O-shaped ring, the middle spacer bush, the upper valve rod O-shaped ring and the upper stop block are sequentially arranged in the upper valve rod accommodating space, the position, corresponding to the first air inlet, of the air vent of the middle spacer bush is used for circulating air, the upper stop block is a hollow cylinder with a radially protruding fixing part at one end surface, the two surfaces of the fixing part are respectively connected with the valve body and the ejector rod assembly, the upper valve rod is sequentially connected with the lower stop block, the upper valve rod O-shaped ring, the middle spacer bush, the upper valve rod O-shaped ring and the upper stop block in a penetrating manner, and the upper valve rod is provided with an air inlet channel.
5. The gas reset integrated valve of claim 4, wherein the ejector rod assembly comprises an ejector rod seat, an ejector rod seat O-shaped ring and a steel sleeve, wherein the ejector rod seat is a hollow cylinder with a radially protruding fixing flange at one end surface, the fixing flange of the ejector rod seat is connected with the valve body through a screw rod locking pair, the inner edge surface of the hollow cylinder of the ejector rod seat comprises a radially inward second-order step part, the ejector rod seat O-shaped ring and the steel sleeve are sequentially arranged in the hollow cylinder of the ejector rod seat and sequentially abutted against and connected with the second-order step part, one end of the ejector rod, facing towards the upper valve rod, of the ejector rod comprises an ejector rod flange, the diameter of the ejector rod flange is larger than that of the second-order step part, the ejector rod penetrates through and is connected with the ejector rod seat O-shaped ring and the steel sleeve, and two end surfaces of the ejector rod flange are respectively connected with the bottom surface of the second-order step part and the end surface of the upper valve rod.
6. The integrated valve for gas reset according to claim 2, wherein a third gas inlet is formed at a position of the valve body corresponding to the piston, the valve body is further provided with a first working port, a second working port, a first gas outlet and a second gas outlet, and the first working port, the second working port, the first gas outlet and the second gas outlet are respectively connected with the valve rod cavity in a gas path.
7. The gas reset integrated valve of claim 6, wherein the openings of the first and second exhaust ports are connected to an exhaust cap and an exhaust gasket.

Description

Gas reset integrated valve Technical Field The invention relates to the field of vehicle devices, in particular to a gas reset integrated valve with a reliable structure. Background In order to realize diversified functions and consider cost, various functional valves, such as a reversing valve, a stop valve and a handle valve in a gear shifting system, and a mechanical transmission with a main box structure and an auxiliary box structure, are used for gear shifting of the auxiliary box, and currently, the air valve used by the transmission with the main box structure and the auxiliary box structure is of a two-position five-way structure, and the air valve is divided into mechanical control and pneumatic control according to different gears. In the prior art, most valves of a transmission are double-control integrated valves, such as a double-control integrated valve disclosed in patent publication number CN 104033626B, and the double-control integrated valve effectively integrates a two-position two-way mechanical control valve and a two-position five-way pneumatic control valve, but under actual working conditions, the integrated valve is reset by a spring, and because of the long period of three packages of an automobile product, if the spring breaks or the force value is attenuated during use, the product performance is affected. To solve this problem, a new structure is required to compensate for the hidden trouble caused by the breakage of the spring or the attenuation of the force value. Disclosure of Invention In view of the above-mentioned drawbacks, an object of the present invention is to provide a gas reset integrated valve with reliable structure, so as to solve the problems of the prior art. In order to achieve the above purpose, the present invention adopts the following technical scheme: The integrated valve comprises a valve body assembly, a push rod assembly and an upper valve rod assembly, wherein the push rod assembly is arranged on the valve body assembly, the push rod assembly and the valve body assembly form an upper valve rod accommodating space, the upper valve rod assembly is arranged in the upper valve rod accommodating space, the valve body assembly comprises a valve body provided with a valve rod cavity, a rear cover and a valve seat which are arranged on two sides of the valve rod cavity, a valve rod assembly arranged in the valve rod cavity, a rear cover O-shaped ring and a return spring, the valve rod assembly comprises a valve rod, five sealing rings sleeved on the valve rod, one end of the valve rod, which faces towards the rear cover, is provided with a spring groove for accommodating the return spring, two ends of the return spring are respectively abutted against and connected with the bottom surface of the spring groove and the rear cover, the upper valve rod accommodating space is connected with the air passage, the bottom surface of the spring groove is provided with a reset air passage penetrating through the valve rod cavity and is connected with the upper valve rod accommodating space, the outer surface of the valve rod cavity is provided with an annular groove, and the annular cover O-shaped ring is arranged on the outer surface connected with the rear cover, and the annular cover is used for preventing leakage of air in the valve rod cavity. According to the embodiment of the application, the valve body assembly further comprises a piston and a piston V-shaped ring, and the piston V-shaped ring are arranged in the valve seat. The air reset integrated valve is characterized in that the valve body is provided with a first air inlet connected with the upper valve rod accommodating space through an air path, and the upper valve rod assembly is used for opening and closing the air flow of the first air inlet. According to the embodiment of the application, the upper valve rod assembly comprises a spring, a lower stop block, a middle spacer, two upper valve rod O-shaped rings, an upper stop block and an upper valve rod, wherein, The upper valve rod is characterized in that a spring groove is formed in one end, facing the valve rod cavity, of the upper valve rod, the other end of the upper valve rod is connected with the ejector rod assembly, one end of the spring is arranged in the spring groove, the other end of the spring is connected with the bottom surface of the upper valve rod accommodating space, the lower stop block, the upper valve rod O-shaped ring, the middle spacer bush, the upper valve rod O-shaped ring and the upper stop block are sequentially arranged in the upper valve rod accommodating space, the position, corresponding to the first air inlet, of the air vent of the middle spacer bush is used for circulating air, the upper stop block is a hollow cylinder with a radially protruding fixing part at one end surface, the two surfaces of the fixing part are respectively connected with the valve body and the ejector rod assembly, the upper valve rod is seque