A time-controlled snap-press type multi-purpose fully enclosed safety valve

Abstract

The invention discloses a timing-control spring-compression type multi-purpose fully-sealed safety valve which comprises a valve body (1) and a valve deck (2). An air inflow pipe (3) and an air outflow pipe (4) are arranged on the valve body (1). A valve cavity (5) is formed above a vent hole in the connecting position of the air inflow pipe (3) and the air outflow pipe (4). A spring-compression type switch is arranged in the valve cavity (5) and is mainly composed of a piston (6), a piston rod (7), a compression spring (8), an eccentric wheel lever (9) and a fixing rod (10). The eccentric wheel lever (9) is mounted above the valve deck (2). One end of the eccentric wheel lever (9) is the limiting end, the limiting end extends to the fixing rod (10), and the other end of the eccentric wheel lever (9) is the switch operation end. The timing-control spring-compression type multi-purpose fully-sealed safety valve is simple in structure, scientific in design, good in airtightness and capable of being closed in a timing-control manner, and the practicality of a valve switch is improved effectively.

Description

technical field [0001] The invention relates to the technical field of designing valve switches, in particular to a time-controlled spring-press type multi-purpose fully enclosed safety valve. Background technique [0002] Liquefied petroleum gas is used in most civilian households, and the main components of liquefied petroleum gas are butene, propylene, butane and propane. These substances are extremely flammable and can form explosive mixtures with air. There is a danger of burning and explosion when encountering heat source and open flame. Vigorous chemical reactions will occur in contact with fluorine, chlorine, etc. Its vapor is heavier than air, and can spread to a considerable distance at a lower place, and it will ignite and burn back when encountering an ignition source. If there is leakage during use, it is easy to be poisoned, and anesthesia is easy to occur after poisoning, which will cause immeasurable losses to life and property. [0003] The valves curren...

AI Technical Summary

Problems solved by technology

The operation is very inconvenient, and if the rotation is not in place, it is easy to leak air, which poses a threat to life and property

Moreover, when the running-in surface of the rotating cylinder is not well matched, the sealing performance is not good. Even if it is closed, it will cause air leakage, which is easy to cause safety accidents and cause damage to life and property.

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