JPH02145366U - - Google Patents

Description

[Brief explanation of drawings]

Figures 1 to 6 show one embodiment of this invention. Figure 1 is a sectional view of the gas release preventer, Figure 2 is a front view of the retaining ring, and Figure 3 is a concave part of the pressure regulating member. Figure 4 shows the relationship between the amount of displacement of the gas supply pressure and the amount of displacement of the sliding member. Figure 5 shows the operating curve of the main valve when a curved part is provided. Figure 5 shows the diagram when two elastic members are provided. Fig. 6 is an operating curve diagram of the main valve when the pressure regulating member is provided with a concave curved portion and two elastic members are used. Figures 7 to 9 show conventional examples, where Figure 7 is a sectional view of the pressure regulating member not displaced, Figure 8 is a sectional view of the pressure regulating member displaced, and Figure 9 is a sectional view of the pressure regulating member being displaced. 1 is a diagram showing a relationship between a spring constant of a compression coil spring and an operation curve diagram of a main valve. 1... Preventer body, 1a... Inflow port, 1b...
Outlet, 1c...Flow hole, 2...Main valve, 3...Biasing member, 4...Sliding member, 5...Pressure regulating member, 5a
...Concave bent portion, 6a, 6b...Elastic member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A main body of the preventer in which a gas flow hole is formed to allow gas to flow from an inlet to an outlet, and a gas flow hole that is slidable in the axial direction within the gas flow hole. a main valve that shuts off the flow, a biasing member that is loaded into the gas distribution hole to bias the main valve toward the inlet side, and a biasing member that receives the biasing member on the outlet side of the gas distribution hole and slides in the axial direction. a pressure regulating member that slides in a direction perpendicular to the axial direction while receiving an end of the sliding member on the outflow port side; The device is equipped with a springing member that springs from the outside of the preventer body toward the gas distribution hole, and the pressure is adjusted in a direction perpendicular to the axis by displacing the springing member according to the gas pressure in the gas circulation hole. Gas release prevention in which the main valve is displaced via the biasing member and the gas flow hole is blocked by sliding the member and displacing the sliding member in the axial direction according to the displacement of the pressure regulating member. A gas release preventer, wherein a portion of the pressure regulating member that receives an end of the sliding member is a concave curved portion. (2) A preventer main body having a gas flow hole that allows gas to flow from the inlet to the outlet, a main valve that is slidable in the axial direction within the gas flow hole to shut off the gas flow hole, and A biasing member loaded into the gas flow hole to bias the main valve toward the inlet side, and a sliding member slidably provided in the axial direction to receive the bias member on the outlet side of the gas flow hole. a pressure regulating member that slides in a direction perpendicular to the axial direction while receiving the end of the sliding member on the outflow port side; and a resilient member that resiliently projects toward the hole, and by displacing the resilient member in accordance with the gas pressure within the gas distribution hole, the pressure regulating member is slid in a direction perpendicular to the axis, thereby regulating the pressure. In a gas release preventer that displaces the sliding member in the axial direction according to the displacement of the member to displace the main valve via the biasing member and block the gas flow hole, wherein the elastic member is A gas release preventer comprising at least two resilient members having different resilient forces. (3) A preventer main body having a gas flow hole that allows gas to flow from the inlet to the outlet, a main valve that is slidable in the axial direction within the gas flow hole to shut off the gas flow hole, and A biasing member loaded into the gas flow hole to bias the main valve toward the inlet side, and a sliding member slidably provided in the axial direction to receive the bias member on the outlet side of the gas flow hole. a pressure regulating member that slides in a direction perpendicular to the axial direction while receiving the end of the sliding member on the outflow port side; and a resilient member that springs toward the hole, and by displacing the resilient member according to the gas pressure in the gas distribution hole, the pressure regulating member is slid in a direction perpendicular to the axis, thereby regulating the pressure. In a gas release preventer configured to displace the main valve via the biasing member by displacing the sliding member in the axial direction in accordance with the displacement of the member to block the gas flow hole, the pressure regulating member comprising: A gas release preventer characterized in that a portion receiving an end of the sliding member is a concave curved portion, and the resilient member is composed of at least two resilient members having different resilient forces.