KR970046900A - Pressure Sensing Safety Device and Reset Mechanism - Google Patents

Abstract

When the internal pressure of the gas container rises abnormally, it directly detects and operates it, and blocks the gas passage.

While the internal pressure of the gas container is in the normal range, the gas container is reversed in the direction of the pressure sensing chamber 12, and when the internal pressure of the gas container is abnormally increased, the inverting member 31 which can be reversed in the opposite direction by the same pressure is moved. The valve body 30 is installed in an airtight place deep in the pressure sensing chamber 12, moved by the inversion of the inverting member 31, and capable of opening and closing a gas passage flowing downstream from the pressure sensing chamber 12. It is assembled to be movable into the detection chamber (12).

Description

Pressure Sensing Safety Device and Reset Mechanism

Since this is an open matter, no full text was included.

1 is a longitudinal sectional view showing Embodiment 1 of a pressure-sensitive safety device according to the present invention.

2 is a cross-sectional view in the transverse direction in which the restraining member of the reset mechanism is added to the apparatus.

3 is a front view showing the appearance of the entire apparatus.

4 is a front view of Embodiment 2 relating to another example of the operating member. (B) Right side view of FIG.

Claims (7)

A pressure sensing safety device that operates by detecting an abnormal rise in the gas pressure discharged from a small gas container, and has a valve body to block the gas passage. A pressure sensing device that senses the pressure of the gas discharged by the connection of the gas container. The chamber 12 is installed in the main body 10, and while the internal pressure of the gas container is within the normal range, the chamber 12 is inverted in the direction of the pressure sensing chamber 12. When the internal pressure of the gas container is abnormally high, An inverting member (31) reversible in the reverse direction is hermetically sealed deep inside the pressure sensing chamber (12), moved by the inversion of the inverting member (31), and a gas cylinder communicating downstream from the pressure sensing chamber (12). Pressure sensing safety device, characterized in that the assembly to move the valve body (30) that can open and close the furnace into the pressure sensing chamber (12). It is a pressure sensing safety device equipped with a valve body that detects and operates an abnormal rise in gas pressure derived from a small gas container, and shuts off the gas passage, and a pressure adjusting mechanism that adjusts the pressure of the gas. The pressure sensing chamber 12 provided with the connection port 11 for connecting (N) at one end is formed in the main body 10, and the check valve 13 which opens the valve by pressing the connected nozzle valve N is connected. The pressure sensing chamber 12 and the adjusting chamber 21 are connected by the passage hole 22 to guide the gas discharged by the valve opening to the adjusting chamber 21 of the pressure adjusting mechanism 20. In order to open and close the gas passage between the connection port 11 and the passage 22, the valve body 30 is movably assembled into the pressure sensing chamber 12, and the valve while the internal pressure of the gas container is in the normal range. The sieve 30 is positioned in the valve opening direction, and the same pressure Hurt when turned high pressure, characterized in that to install reversible reversing member 31 to position the valve body 30 to move by the same pressure as the closing direction so as to block the gas passage detection safety. The end of the pressure sensing chamber according to claim 1 or 2, wherein the inner side is closed by an inner wall, the connection port 11 side is opened, and a tubular support 14 capable of accommodating the check valve 13 therein is provided. 12a), and fixed between the inner wall and the check valve 13, a valve opening spring 15 having a spring force for valve opening of the nozzle valve N is provided, and small for flowing the discharged gas. A pressure sensing safety device, characterized in that the hole (16) is opened in the peripheral wall of the support (14). The pressure sensing chamber (12) according to claim 1 or 2, wherein the pressure sensing chamber (12) has a substantially cylindrical shape, and the valve body has respective piston-shaped portions, and has a cylindrical shape between the check valve (13) and the passage hole (22). The annular wall portion 17 has a tapered shape with a small diameter inside thereof, and has a configuration in which a piston means is provided with a sealing means 18 that can open and close the gas passage by folding with the annular wall portion 17. Pressure sensing safety device, characterized in that. A check valve 12 is formed in the main body 10 in which a pressure sensing chamber 12 having one end connecting a connection port 11 for connecting a nozzle valve N of a gas container to the main body 10 is pressed to open the valve by pressing the connected nozzle valve N. (13) is mounted in the connection port, and the valve body 30 is movably assembled into the pressure sensing chamber 12 to open and close the gas passage, and the valve body 30 while the internal pressure of the gas container is in the normal range. ) Is placed in the valve opening direction, and when the pressure is abnormally high, the inverting member 31 is provided which is inverted so as to block the gas passage by placing the valve body 30 in the valve closing direction by the same pressure. A reset mechanism for a pressure sensing safety device, characterized in that a main body (10) is provided with a reset member (40) which is movable by reversal of a member (31) and which can be externally operated at the same time. 6. The operation member (40) according to claim 5, wherein the reset member (40) is provided to be protruding from the main body (10), and has an inclined surface (42) in contact with an end portion of the reset member (41) which is drawn out to push it back. Reset mechanism of the pressure-sensing safety device, characterized in that the main body 10 is installed. An operating member (43) is provided in a mechanism stopper shaft (51) or a handle (52) for opening and closing a gas passage, and when the handle (52) is operated to a fire extinguishing position, 40) A reset mechanism of the pressure sensing safety device, characterized in that configured to push and return.