Safety angle valve of coal gas steel cylinder

Abstract

The invention provides a safety angle valve of a coal gas steel cylinder. The safety angle valve is modified on the basis of the existing traditional safety angle valve of the coal gas steel cylinder and the safety angle valve of the coal gas steel cylinder, invented by an applier in 2005. The safety angle valve is characterized in that a pressure spring is arranged in a square power transferring rod below an actuating valve rod in a sleeving manner, so that a function of preventing air leakage which occurs due to the wear and loosening of the actuating valve rod is performed; a clockwise valve seat B is driven into an air inlet and outlet joint through threads and clamped by using a jump ring, so that a function of preventing air leakage caused by the natural loosening of the clockwise valve seat B in a transporting oscillating process is performed; an air hole with set coal gas output flow is formed in the center of an ejector rod in the center of an elastic valve element A and used in cooperation with a small round limiting ball, so that a function of automatically closing fuel gas when a household relief valve is out of control and explodes, a hose is bitten by a mouse or the hose leaks gas after being accidentally burnt by fire is performed; and a plurality of O-shaped air leakage preventing sealing rings C are arranged at the periphery of a round through pipe A below the valve and cooperatively arranged in inner round through pipes B below the mounting connector of the angle valve in a sleeving manner, and a function of preventing air leakage after the loosening of the angle valve is performed.

Description

[0001] Technical field: [0002] The invention relates to a "gas cylinder angle valve" for a pressure vessel, in particular to a gas cylinder safety angle valve with multiple functions. [0003] Background technique: [0004] At present, there are two types of gas cylinder angle valves being used in the Chinese market: one is the traditional gas cylinder angle valve without self-closing function, and the other is the "gas cylinder angle valve" invented by the applicant in 2005. Steel cylinder safety angle valve" (patent number: zl200620106929.9); the shortcomings of the above two gas cylinder angle valves are four: First, the "gas cylinder safety angle valve" invented in 2005 has the following disadvantages: self-closing The assembly process of the valve core is unreasonable (that is, during the use or transportation vibration process, the jacket of the guide valve core (that is, the valve seat in the forward direction is prone to natural loosening and leaking air leakage poses...

AI Technical Summary

Problems solved by technology

[0004] At present, there are two types of gas cylinder angle valves being used in the Chinese market: one is the traditional gas cylinder angle valve without self-closing function, and the other is the "gas cylinder angle valve" invented by the applicant in 2005. Steel cylinder safety angle valve" (patent number: zl200620106929.9); the shortcomings of the above two gas cylinder angle valves are four: First, the "gas cylinder safety angle valve" invented in 2005 has the following disadvantages: self-closing The assembly process of the valve core is unreasonable (that is, during the use or transportation vibration process, the jacket of the guide valve core (that is, the valve seat in the forward direction is prone to natural loosening and leaking air leakage poses a danger; the second is that the leak-proof air in the large valve stem The sealing rubber ring is aging and worn for a long time, it is easy to loosen and the seal is not tight, and there is a danger of micro-air leakage; third, when the pressure reducing valve (that is, the pressure regulator) used in the user's home connected to the gas stove appears aging and out of control explosion, or When the soft rubber hose is bitten by a mouse, or the gas stove accidentally catches fire and the soft rubber hose leaks a lot of air, it cannot automatically shut off the gas in the gas cylinder, which may easily cause a major explosion accident; The method is not scientific enough, prone to installation skew or loose air leakage accidents

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