Gas filling and gas supply joint for gas cylinder and high-pressure gas cylinder using same

Abstract

The invention provides a gas filling and gas supply joint for a gas cylinder and a high-pressure gas cylinder using the same. The gas filling and gas supply joint for the gas cylinder comprises a gas filling sealing device and a cylinder opening gas supply device, wherein the gas filling sealing device comprises a first transfer block, a gas filling channel is arranged on the first transfer block, the gas filling channel comprises a gas inlet end for filling gas, a tapered hole segment is arranged in the gas filling channel, the gas filling sealing device further comprises a steel ball which is hermetically matched with the tapered hole segment for blocking the gas filling channel, the cylinder opening gas supply device comprises a second transfer block, a gas supply channel communicated with an inner cavity of the gas cylinder via the gas filling channel is arranged on the second transfer block, the gas supply channel comprises a gas outlet end for gas supply, and the cylinder opening gas supply device further comprises an ejection mechanism for pushing the steel ball away from a sealing position to conduct the gas filling channel. The gas filling and gas supply joint provided by the invention has high degree of integration, can complete corresponding gas filling and gas supply operations at the same end of the gas cylinder and has a wide range of applications.

Description

technical field [0001] The invention relates to an air charging and gas supply joint for a gas cylinder and a high-pressure gas cylinder using the device. Background technique [0002] At present, with the continuous development of science and technology, the demand for pressure vessels is becoming more and more diverse, especially with excellent long-term storage performance (gas leakage is not more than 0.02 g / month, effective storage period of more than 10 years) and reliable The pressure vessel of the bottle opening method is getting more and more attention. [0003] However, due to the limitation of the sealing structure and the output principle of opening the bottle, the inflation channel and the gas supply channel of the commonly used high-pressure gas cylinders are usually distributed at the two ends of the gas cylinder, as disclosed in the Chinese utility model patent with the authorized announcement number CN203363648U A gas cylinder, one end of the gas cylind...

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Problems solved by technology

[0004] However, since the above-mentioned inflation channel and gas supply channel are respectively arranged at both ends of the gas cylinder, the integration degree is low and the space occupied is large, so it is not suitable for special places where the gas cylinder can only be inflated and supplied at the same end.

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