Diaphragm type pressure regulator

Abstract

The invention provides a diaphragm type pressure regulator which enables an adjusting valve and a stopping valve to be assembled easily on an entrance access of a gas flow path, and can prevent the bad opening of the adjusting valve or the bad closing of the stopping valve. A diaphragm used for dividing and forming a pressure regulating chamber and an atmospheric pressure chamber is arranged in a regulator main body, a connecting body is arranged in the center of the diaphragm, and a permanent magnet overcoming a deviation spring on the lower surface of the connecting body and overcoming the acting force of the deviation spring to be absorbed on the connecting body to thereby be contacted and separated with the connecting body up and down is equipped with a hanging body. The adjusting valve and the stopping valve are arranged on the entrance access independently and respectively. The adjusting valve is connected with a work rod working along with the lifting of the hanging body, and the stopping valve is maintained at the opening position under the acting force of a resetting spring, is applied a flow pressure of a gas formed by the entrance access when the stopping valve is opened fully, and overcomes the acting force of the resetting spring to be closed.

Description

technical field [0001] The invention relates to a diaphragm pressure regulator. Background technique [0002] When a diaphragm pressure regulator is normally used, the opening amount of the regulating valve is adjusted by using the action of the diaphragm, which divides and forms the pressure inside the regulator body, so as to keep the air pressure in the pressure regulating chamber within the set range. Regulating chamber and atmospheric pressure chamber. [0003] In addition, for example, there is known a pressure regulator having a structure in which, in addition to a regulating valve for adjusting the air pressure of the pressure regulating chamber, a regulating valve for regulating the air pressure of the pressure regulating chamber is provided on the inlet passage communicating with the pressure regulating chamber, and a blocking valve is also provided. A structure of a shut-off valve that cuts off the inlet passage (for example, refer to Patent Document 1). [0004...

AI Technical Summary

Problems solved by technology

[0011] However, in the diaphragm type pressure regulator with the above structure, when the inner and outer valve rubbers 130, 140 are fixed on the shaft of the connecting rod 102 in a misaligned position, it is easy to be poorly opened or blocked, and it is necessary to accurately fix and match them. There are two valve rubbers 130 and 140 inside and outside

[0012] Furthermore, it is necessary to assemble the connecting rod 102 having two inner and outer valve rubbers 130, 140 to the inlet passage 114 communicating with the pressure regulating chamber 112 of the regulator main body 101, and assemble the extension end 103 of the connecting rod 102 to the working rod. On the 180, the assembly of the diaphragm pressure regulator becomes troublesome

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