Gas pressure reducing valve

Abstract

The invention discloses a gas pressure reducing valve. The gas pressure reducing valve comprises a valve seat, a valve bonnet, a pressure reducing mechanism and an adjusting mechanism, wherein the valve seta is matched with the valve bonnet, the pressure reducing mechanism comprises a top block, a connector, a moving part and an elastic part, the valve sat is provided with a mounting groove, the elastic part is arranged in the mounting groove, the connector is matched with the mounting groove, the moving part is arranged in the connector, and two ends of the moving part are abutted against the top block and the elastic part respectively. The top block contacts with the adjusting mechanism, the adjusting mechanism can push the top block and the moving part to move and is mounted on the valve bonnet, the valve seat is provided with a gas inlet and a gas outlet, the connector is provided with a first communication hole, and the gas inlet and the gas outlet are communicated through the first communication hole. The gas pressure reducing valve can adjust gas pressure controllably, gas can be converted into low-pressure gas effectively, gas is saved, and the gas pressure reducing valve has the advantages of simple structure, reasonable mounting structure and convenience in use.

Description

technical field [0001] The invention belongs to a gas decompression device for a welding torch, in particular to a gas decompression valve. Background technique [0002] Many of the existing gas pressure reducing valves have shortcomings such as unreasonable structure, high gas pressure and lack of buffering, which affect the welding quality of the welding torch during welding, and the complex structure increases the processing cost. At the same time, many of the existing gas pressure reducing valves cannot reduce the air pressure to a reasonable pressure, so that the air pipe of the welding torch is filled with gas, resulting in a waste of gas resources; and the pressure reducing effect of the gas pressure reducing valve is fixed and cannot be adjusted according to welding needs. Adjustment is made so that different welding torches need to be replaced with corresponding gas pressure reducing valves for different occasions, causing inconvenience in use. Contents of the inv...

AI Technical Summary

Problems solved by technology

[0002] Many of the existing gas pressure reducing valves have shortcomings such as unreasonable structure, high gas pressure and no buffering, which affect the welding quality of the welding torch during welding, and the complex structure increases the processing cost

At the same time, many of the existing gas pressure reducing valves cannot reduce the air pressure to a reasonable pressure, so that the air pipe of the welding torch is filled with gas, resulting in a waste of gas resources; and the pressure reducing effect of the gas pressure reducing valve is fixed and cannot be adjusted according to welding needs. Make adjustments so that different welding torches need to be replaced with corresponding gas pressure reducing valves for different occasions, causing inconvenient use

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