CN2826187Y - Automatic safety pressure regulator for gas - Google Patents

Abstract

The utility model relates to an automatic safety pressure regulator for gas, which comprises an upper cover gas chamber and a pressure regulating gas chamber which are divided by a flexible leather cover, wherein both ends of the pressure regulating gas chamber are provided with a gas inlet pipe and a gas outlet pipe, a clamping plate is positioned in the flexible leather cover and is linked with the flexible leather cover, a pressure regulating spring is arranged between the clamping plate and an upper cover, a connecting rod of the clamping plate under the flexible leather cover is linked with a compression rod which is movably hinged, a seal covering cap arranged at the end of the compression rod is matched with the outlet end of the gas inlet pipe, the flexible leather cover is a sealed gas chamber which is communicated with a deformation gas bag arranged in the pressure regulating gas chamber, the deformation gas bag presses and leans against one side of a turning fastener which is provided with a restoring spring, and one end of the turning fastener presses a safety spring which is opposite to one end of the compression rod. The utility model overcomes the defect that an ordinary pressure regulator can not automatically cut off the gas source when generating gas leakage. The detailed design can eliminate the safety misadventure caused by gas leakage because of the rupture of the leather cover of a gas pressure regulator and does not need any external force and power supply. The utility model has the advantages of simple structure, high sensitivity and high safety.

Description

A kind of automatic protective pressure regulator for fuel gas

Affiliated technical field

The utility model relates to a kind of automatic protective pressure regulator for fuel gas.

Background technology

At present, the use popularity rate of China resident family combustion gas is more and more higher, combustion gas brings numerous simultaneously also dangerous constantly easily securities of the lives and property of people to people, now because various security incidents such as the gas leakage that the use combustion gas causes, poisoning, fire, blast are also increasing.Although on market, also occurred some security personnel's products of developing out at gas pressure regulator, governor safety at present, but these products all exist the defective that can not be ignored: what have has introduced combustion gas gas sensing electronic installation in structure, its structure is complexity but also impracticable not only, in case do not had electricity will lose all protection functions; What have only can report to the police when the gas leakage accident takes place and can not cut off source of the gas automatically.Therefore, we can say in existing pressure regulator product, the gas leakage if in a single day its inner skin lid breaks, gas leakage just can not stop voluntarily, and this has brought serious threat for security of the lives and property of people.

Summary of the invention

The general gas pressure regulator can not cut off the problem of source of the gas automatically in the prior art when leaking gas in order to overcome, the utility model provides a kind of automatic protective pressure regulator for fuel gas, this automatic protective pressure regulator for fuel gas simple in structure, gas leakage the time need not external force and the power supply supply can be cut off source of the gas voluntarily, and is highly sensitive, safe and reliable.

The technical scheme that its technical problem that solves the utility model adopts is: comprise upper gas-covering chamber and the pressure chamber separated by flexible skin lid, the two ends of pressure chamber are provided with air inlet pipe and escape pipe, clamping plate are positioned in the flexible skin lid and with flexible skin and cover interlock, be provided with pressure spring between clamping plate and the last tegmental wall, the depression bar that the clamping plate connecting rod interlock of flexible skin lid below is movably hinged, the capping cap of depression bar end matches with the port of export of air inlet pipe, flexible skin lid is the air chamber of a sealing, and be communicated with distortion air bag in being arranged on pressure chamber, the distortion air bag is pressed against pulling of back-moving spring of band and buckles a side, pull an end of button and push down security personnel's spring, security personnel's spring is relative with an end of depression bar.

In the guide groove of bottom activity orientation in pressure chamber of clamping plate connecting rod.

The passage that on last tegmental wall, is provided with.

The utility model can be eliminated the security incident of breaking and leaking gas and cause because of gas pressure regulator, governor skin lid, and not need any external force and power supply supply by above-mentioned specific design, has simple in structure, highly sensitive, safe and reliable advantage.

Description of drawings

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

Accompanying drawing is a structural representation of the present utility model.

As shown in the figure, the utility model comprises upper gas-covering chamber 2 and the pressure chamber of being separated by flexible skin lid 13, the passage 18 that on last tegmental wall 7, is provided with, the two ends of pressure chamber 3 are provided with air inlet pipe 4 and escape pipe 5, clamping plate 6 are positioned in the flexible skin lid 1 and with flexible skin and cover 1 interlock, be provided with pressure spring 8 between clamping plate 6 and the last tegmental wall 7, the depression bar 10 that clamping plate connecting rod 9 interlocks that flexible skin covers 1 below are movably hinged, in the guide groove 17 of the bottom activity orientation of clamping plate connecting rod 9 in pressure chamber 3, the capping cap 11 of depression bar 10 ends matches with the port of export of air inlet pipe 4, flexible skin lid 1 is the air chamber 12 of a sealing, and be communicated with distortion air bag 13 in being arranged on pressure chamber 3, distortion air bag 13 is pressed against pulling of back-moving spring 14 of band and buckles 15 1 sides, pulls an end of button 15 and pushes down security personnel's spring 16, and security personnel's spring 16 is relative with an end of depression bar 10.Under user mode, automatic protective pressure regulator for fuel gas is received on the gas cylinder, open the angle valve of steel cylinder, have a large amount of combustion gas and enter pressure chamber 3 through air admission hole this moment, 1 whole can upwards heaving rapidly, the upper gas-covering chamber's shell wall above the two ends of clamping plate 6 withstand on and the stagnation of rubber flexible skin lid.When leakage has taken place for a certain reason for the air chamber 12 of rubber flexible skin lid 1, at this moment, gas in the distortion air bag 13 can replenish by air chamber 12, the 13 decompression contraction distortions of distortion air bag, under the effect of back-moving spring 14, plate button 15 can be moved to the right rapidly, the other end of plate button 15 is broken away from security personnel's spring 16, in the moment of taking place to break away from, original security personnel's spring 16 that always is in confined state can flick and head on tightly depression bar 10 rapidly finally can make capping cap 11 tightly seal the port of export of pushing down air inlet pipe 4 downwards, thereby the cut-out source of the gas stops combustion gas to continue to enter pressure chamber through air admission hole, finally realizes the function of automatic protecting.For fear of taking place, automatic protective pressure regulator for fuel gas in long-term use, may bring some negative effects to the pressure regulating performance and the product itself of pressure regulator because of variation such as the temperature of pressure regulator outside air, air pressure, humidity, we have designed passage 18, so that make upper gas-covering chamber 2 and the outer air of pressure regulator can often carry out " gas exchange ".Even do not increase design passage 18, just upper gas-covering chamber 2 is in closed state, at this moment still operate as normal in the same old way of automatic protective pressure regulator for fuel gas.

Claims (3)

1, a kind of automatic protective pressure regulator for fuel gas, comprise upper gas-covering chamber and the pressure chamber separated by flexible skin lid, the two ends of pressure chamber are provided with air inlet pipe and escape pipe, clamping plate are positioned in the flexible skin lid and with flexible skin and cover interlock, be provided with pressure spring between clamping plate and the last tegmental wall, the depression bar that the clamping plate connecting rod interlock of flexible skin lid below is movably hinged, the capping cap of depression bar end matches with the port of export of air inlet pipe, it is characterized in that flexible skin lid (1) is the air chamber (12) of a sealing, and be communicated with distortion air bag (13) in being arranged on pressure chamber (3), distortion air bag (13) is pressed against pulling of band back-moving spring (14) and buckles (15) one sides, pull an end of button (15) and push down security personnel's spring (16), security personnel's springs (16) are relative with an end of depression bar (10).

2, a kind of automatic protective pressure regulator for fuel gas according to claim 1 is characterized in that in the guide groove (17) of bottom activity orientation in pressure chamber (3) of clamping plate connecting rod (9).

3, a kind of automatic protective pressure regulator for fuel gas according to claim 1 and 2 is characterized in that the passage (18) that is provided with on last tegmental wall (7).

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