Mini-type pressure reduction pipe

Abstract

The invention discloses a mini-type pressure reduction pipe. The mini-type pressure reduction pipe comprises a pipe body, a rubber sheet, a containing cavity and a ball sealer, wherein the two ends of the pipe body are provided with connection threads, the space inside the pipe body is composed of a high pressure cavity and a low pressure cavity, the inner diameter of the high pressure cavity is smaller than that of the low pressure cavity, the rubber sheet is arranged inside the low pressure cavity and is connected with the inner surface of the low pressure cavity, the rubber sheet makes contact with the end portion of the high pressure cavity, the position where the rubber sheet makes contact with the end portion of the high pressure cavity is evenly provided with multiple vent holes, a circular arc groove is formed in the center of the rubber sheet, the containing cavity is arranged at one end, close to the rubber sheet, of the high pressure cavity, the ball sealer is arranged inside the circular arc groove, and the ball sealer is compressed in the containing cavity by the rubber sheet and is tightly attached to the transition position of the containing cavity. The rubber sheet replaces a spring, so that the size of the pressure reduction pipe is reduced effectively.

Description

technical field [0001] The invention relates to the field of gas delivery, in particular to a gas delivery device. Background technique [0002] The gas needs to be kept at high pressure during the transportation process, and the gas pressure needs to be reduced when it is used at the user end. Currently, in order to reduce the gas pressure at the user end, a pressure reducing valve is usually provided on the gas delivery pipe. The existing pressure reducing valve has complicated structure and high manufacturing cost, and the pressure reducing valve has a large volume and cannot be installed in a narrow space. [0003] Existing decompression valves, such as a high-pressure natural gas decompression valve disclosed in Chinese Patent Application Publication No. "102052495A", natural gas flows in from the intake end, and enters from the top and bottom direction after passing through the decompression mechanism. When the gas outlet is connected to the cavity, the natural gas w...

AI Technical Summary

Problems solved by technology

The existing pressure reducing valve has complex structure, high manufacturing cost, and the pressure reducing valve is too large to be installed in a narrow space

[0003] Existing decompression valves, such as a high-pressure natural gas decompression valve disclosed in Chinese Patent Application Publication No. "102052495A", natural gas flows in from the intake end, and enters from the top and bottom direction after passing through the decompression mechanism. When the gas outlet is connected to the cavity, the natural gas will be sprayed onto the cavity wall at this time, causing the natural gas flow entering the gas outlet to be turbulent, which can easily cause flow fluctuations and cause the flame state to be unstable when the user uses it.

[0004] At the same time, the existing pressure reducing valve uses a spring as a force-receiving mechanism, and the length of the spring is relatively long, resulting in a large volume of the existing pressure reducing valve, while using a spring with a small size cannot provide sufficient elastic force, resulting in insufficient gas pressure. The extent to which the decayed value is available

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