Pipe connecting device for fuel gas

The invention discloses a pipe connecting device for fuel gas. The pipe connecting device is arranged between a fuel gas pipe with a fuel gas pipe joint and a to-be-connected fuel gas valve, the surface of a connecting head of the fuel gas valve is a corrugated surface, a screw cap is connected to t...

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Bibliographische Detailangaben
1. Verfasser: CAI WENMING
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a pipe connecting device for fuel gas. The pipe connecting device is arranged between a fuel gas pipe with a fuel gas pipe joint and a to-be-connected fuel gas valve, the surface of a connecting head of the fuel gas valve is a corrugated surface, a screw cap is connected to the connecting head in a sleeve mode, and the fuel gas pipe joint is connected to the connecting headin a sleeve mode and is connected to the screw cap through threads; a sealing element is connected to the connecting head in a sleeve mode, and the sealing element is located between a cap peak of the screw cap and the fuel gas pipe joint; and the sealing element comprises a first sealing ring and a second sealing ring, wherein the inner circumferential surface of the first sealing ring is connected to the surface of the connecting head in a clamped mode, one end surface of the first sealing ring is resisted on the fuel gas pipe joint, one end of the second sealing ring is connected to the other end of the first seal