KR101801598B1 - Gas safety regulator of the aisle block system - Google Patents

Abstract

[0001] The present invention relates to a gas safety regulator of a flow cut-off type, which is provided in a portable gas range and prevents explosion of a gas container when a gas pressure rises due to overheat or abnormal phenomenon, thereby preventing a safety accident.
The gas safety regulator of the present invention is a gas safety regulator of a gas flow cutoff type that includes a gas flow cutoff valve for blocking a gas supplied into a gas safety adjustment chamber by an increased gas pressure when a gas pressure rises, The gas safety regulator is provided at one side of the housing and supplies the gas supplied from the gas container to the gas regulating chamber. When the gas pressure rises, the gas flow regulating valve moves to block the gas flow, A flow-path safety device including a flow-path-closing operation port configured to shut off the flow-path safety device; And a return preventing device that fixes one side of the flow passage shut-off valve of the flow passage cut-off safety device that has moved to the rise of the gas pressure and prevents the flow passage shut-off valve from returning to its original state by the returning elastic force, In the meantime, the return preventing device is configured to release the fixed state of the flow passage shutoff valve by the gas amount adjusting knob for controlling the thermal power.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gas safety regulator,

[0001] The present invention relates to a gas safety regulator of a flow cut-off type, which is provided in a portable gas range and prevents explosion of a gas container when a gas pressure rises due to overheat or abnormal phenomenon, thereby preventing a safety accident.

The portable gas range includes a configuration in which a gas container (can) is accommodated for supply of gas as already known, a configuration including a gas safety regulator for supplying the gas to the gas injection mechanism by connecting the accommodated gas container, A burner part for generating a flame by inducing and collecting the collected gas collected from the mixing tube, and a casing constituting an outer case for accommodating the constitution.

In the above-described portable gas range, an excessive cooking vessel is placed on the upper part of the burner portion where the flame is generated, or the gas vessel is heated due to radiant heat generated around the cooking vessel and the case during prolonged use, do.

When the gas expands and the elements that contribute to the continuous expansion are added, the gas container eventually expands and explosion occurs.

In order to prevent the explosion of these gas containers, the gas safety worker's regulations prescribe the prescribed pressure, and the gas container is allowed to escape from the gas inlet at a specified pressure or a device for shutting off gas supply is provided.

Therefore, in order to comply with the above-mentioned obligations, a manufacturing industry has proposed a detachable device for automatically releasing a gas container from a gas inlet at a specified pressure and a flow-blocking device for blocking the supply of gas, And are provided in various ways as in the description of the document.

(JP-A-2002-0087680), a flow-through type safety device for a portable gas range, which is disclosed in JP-A-2003-0091112, 0636058 discloses a portable gas range scanning explosion prevention device having a diaphragm breakage preventing function, a gas container explosion prevention ballast, which is disclosed in Korean Patent Publication No. 10-0545786, a gas regulator safety device of a portable gas stove which is disclosed in Korean Patent Publication No. 10-1189551 And a safety regulator equipped with a shut-off valve and a return device for preventing the overpressure of the portable gas range, which is disclosed in Korean Patent Publication No. 10-1402859, are provided and used,

The present invention is still under development so as to prevent a damage caused by a safety accident such as explosion of a gas container by providing a safer portable gas range.

(KR) Patent Publication No. 2002-0087680 (KR) Patent Publication No. 2003-0091112 (KR) Patent Registration No. 10-0636058 (KR) Patent Registration No. 10-0545786 (KR) Patent Registration No. 10-1189551 (KR) Patent Registration No. 10-1402859

The present invention seeks to provide a more secure portable gas range.

That is, the gas pressure is increased due to an abnormal phenomenon such as overheating, and the explosion of the gas container due to the increased gas pressure is prevented in advance to prevent safety accidents and the like, To provide a gas safety regulator of the flow cutoff type.

In addition, when the gas pressure rises, the flow path through which the gas is supplied is blocked. However, when the flow path is cut off, the flow path is not automatically returned by the return force, and is fixed. To provide a gas safety regulator of the shut-off type.

Also, it is intended to provide a gas safety regulator of a flow cut-off type, which can easily cope with various environments such as the country and regulations to be used, that is, the operation order of a plurality of devices provided for safety can be changed.

The gas safety regulator of the present invention,

And a flow-passage shut-off valve for blocking a gas supplied into the gas safety adjusting chamber by an increased gas pressure when the gas pressure rises, the gas safety adjuster comprising:

The gas supply valve is provided on one side of the housing to supply the gas supplied from the gas container into the gas adjustment chamber. When the gas pressure rises, the gas flow passage operation port moves on the operation passage formed in the housing to shut off the gas flow, And a flow-path safety device provided with a flow-path closing operation device configured to perform a flow- When the gas pressure is increased, the flow passage shut-off valve is inserted into the return preventing groove formed on one side of the flow passage shut-off valve so that the flow passage shut-off valve is restored to its original state by the returning elastic force, And a return preventing lever which is inserted into the return preventing groove of the oil passage shut-off member which is moved when the gas pressure rises. On the other hand, the return preventing device includes a gas amount adjusting knob for adjusting the thermal power, And the fixed state is released. Alternatively,

When the gas pressure is increased, the flow path shutoff port is moved on the operation path formed in the housing to shut off the gas flow path and supply the gas supplied from the gas container to the gas adjustment chamber A flow-path safety device including a flow-path-closing operation port configured to shut off the flow-path safety device; When the gas pressure is increased, the flow passage shut-off valve is inserted into the return preventing groove formed on one side of the flow passage shut-off valve so that the flow passage shut-off valve is restored to its original state by the returning elastic force, And a return preventing lever which is inserted into the return preventing groove of the oil passage shut-off operation port moved when the gas pressure rises; And a second safety device that communicates with an operation passage in which the oil passage shut-off device of the oil line cut-off safety device is installed and in which an increased gas pressure is introduced when the gas pressure rises, thereby performing an operation for safety.

The operating sequence of the flow path blocking safety device and the second safety device when the gas pressure rises can be changed to the magnitude of the elastic force of the elastic spring provided to the flow path safety device and the second safety device, respectively.

The passage connected to the gas regulation chamber opened and closed by the passage blocking operation port and the passage connected to the second safety device are opened in a steady state, and when the passage blocking operation port is moved to block the passage connected to the gas regulation chamber The passageway connected to the second safety device is maintained in the opened state and the passageway connected to the gas regulation chamber and the passageway connected to the second safety device are both blocked Or the passage connected to the second safety device is kept open.

The gas safety regulator of the present invention having the above-described gas flow cutoff system can achieve the object of the present invention.

Cutting off the flow path when the pressure rises. Cutting off the flow path of the safety device. The return preventing lever of the return preventing device that fixes the operation hole is operated by the operation of the gas amount adjusting handle for the thermal power control. And the structure for realizing this can be formed more simply.

In addition, when the pressure rises, the automatic shut-off valve of the second safeguard device may be operated, or the second safety device may be automatically operated after the automatic shut-off valve of the flow shut-off safety device.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a gas safety regulator of a flow cut-off type which is an embodiment of the present invention; FIG.
FIG. 2 is a perspective view of a gas tightening chamber of a gas shut-off type gas safety regulator according to an embodiment of the present invention. FIG.
FIG. 3 is a front schematic view of a gas safety regulator of a flow cutoff type, which is one embodiment of the present invention. FIG.
FIG. 4 is a schematic plan view of a gas safety regulator of a flow cutoff type, which is one embodiment of the present invention. FIG.
FIG. 5 is a schematic cross-sectional view of a main portion of a gas safety regulator of a flow cutoff type, which is one embodiment of the present invention. FIG.
FIG. 6 is a schematic cross-sectional view illustrating a main portion of a gas safety regulator of a flow path-type system according to an embodiment of the present invention. FIG.
FIGS. 7 and 8 are front schematic views showing an operation state of a gas safety regulator of a flow cutoff type, which is one embodiment of the present invention;
FIG. 9 and FIG. 10 are cross-sectional schematic views of a main portion showing an operation state of a gas safety regulator of a flow-cutoff type, which is one embodiment of the present invention.
FIG. 11 is a schematic cross-sectional view of a main portion of a gas safety regulator of a flow cutoff type, which is another embodiment of the present invention. FIG.
FIG. 12 is a schematic cross-sectional view of a main portion showing an operation state of a gas safety regulator of a flow-through type, which is another embodiment of the present invention; FIG.
FIG. 13 is a schematic cross-sectional view of a main portion showing another operating state of a gas safety regulator of a flow-through type which is another embodiment of the present invention. FIG.
FIG. 14 is a front schematic view of a gas safety regulator of a flow cutoff type, which is another embodiment of the present invention; FIG.

It is to be understood that the terms and words used in the present specification and claims should not be construed as limited to a conventional or dictionary sense and that the configurations shown in the embodiments and drawings described herein are only the most preferred embodiments of the present invention It is to be understood that the invention is not limited to the disclosed embodiments and that various changes and modifications may be made without departing from the spirit and scope of the present invention.

The present invention relates to a gas safety regulator provided in a portable gas range and having a safety means of a flow path-breaking type for supplying a gas supplied from a gas container to a burner portion in a stable state and preventing a gas container from exploding upon pressure rise will be.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a gas safety regulator according to the present invention will be described in detail with reference to the drawings.

Referring to Figures 1 to 3,

The structure of the gas safety regulator of the flow cutoff type of the present invention is characterized in that it comprises a housing 10 having a gas inlet 11 at one side connected to a gas container and a gas inlet 11 for supplying gas supplied to the gas inlet 11 to the burner unit stably A gas regulating chamber 20 provided on an upper side of the housing 10 so as to be able to regulate the amount of gas supplied from the gas regulating chamber 20 provided on one side of the housing 10, A gas amount control knob 30 for controlling the thermal power by supplying the gas to the burner unit by adjusting the amount of gas introduced into the regulating chamber chamber 21 when the pressure is increased, (41) for blocking the flow path so as to block the flow path, and a flow path shut-off operation port (41) of the flow path cut-off safety device (40) (41) so as not to be connected to the oil passage A return preventing device 50 having a return preventing lever 51 inserted into the return preventing groove 44 of the flow path safety device 40 and an operation passage 13 , And a second safety device 60 for introducing an elevated gas pressure when the gas pressure rises and performing an operation for safety.

Referring to Figures 1-5,

The housing 10 is a body constituting a gas safety regulator of a flow path type. The housing 10 is connected to a gas inlet 11 at one side connected to a gas container at one side and a connection passage 12 to the gas inlet 11, A channel passage 14 for allowing the operation passage 13 and the adjustment chamber chamber 21 to communicate with each other; And a second safety passage (15) for allowing the safety device (60) to communicate,

In the chamber passage 14, the flow path for guiding the gas is opened by the normal-pressure flow path shut-off opening 41, and the flow path for guiding the gas is blocked by the flow path shut- As shown in FIG.

In the second safety passage 15, a passage for guiding the gas is opened by the normal pressure passage blocking member 41 like the passage for chambers 14, Is formed at a position where the flow path for guiding the gas is blocked by the sphere (41).

The gas conditioning chamber 20 is a well-known technology (configuration) provided with an adjustment chamber 21 for supplying a stable gas to the burner unit.

The gas amount adjusting handle 30 is disposed at one side of the housing 10 to adjust the amount of gas supplied to the burner portion from the adjusting chamber 21 of the gas adjusting chamber 20, Includes a control projection 31 for controlling the rotation range, and this configuration is a known configuration (technique).
The gas injection port 11 to which the gas container formed at one side of the housing 10 is connected and the operation passage 13 are in a plane perpendicular to each other and are not formed with an end, An insertion port 16 is formed in the insertion passage 16 so as to be inserted into the operation passage 13 and a return preventing groove 44 of the passage blocking operation hole 41 inserted in the operation passage 13 An operating port cover 17 having a through hole 17-1 for an operating port is provided at the center so that the formed end can be protruded.

The passage blocking safety device 40 is configured to block the supply of the gas supplied to the burner portion by blocking the flow passage when the pressure of the gas is increased by the passage blocking operation opening 41 accommodated in the operation passage 13. [

Referring to Figures 5 and 6,

The passage blocking safety device 40 includes a passage blocking operation port 41 which is accommodated in the operation passage 13 and moves in the axial direction and a passage blocking operation port 41 in which the gas flows from one end of the passage blocking operation port 41, A plurality of O-rings 43 provided on the outer circumferential surface of the oil passage shut-off operation opening 41 to cut off the gas and a gas inlet 42 formed on the outer end portion of the oil passage shut- And a resilient member 45 composed of a spring for resiliently supporting the flow passage shut-off operation port 41. The resilient member 45 is formed of a resilient member 45,

The gas guide hole 42 is formed to guide the gas introduced from the connection passage 12 and has a gas inlet formed at an inner end portion of the flow passage shut-off member 41, which is the connection passage 12, And a gas outlet formed in a middle portion of a flow passage shut-off operation port (41) for discharging the gas introduced into the gas inlet port formed in the inner end portion. The gas outlet port is connected to the gas passage opening / And is formed between the plurality of O-rings 43 so that the flow path can be blocked.

A chamber passage 14 for allowing the adjustment chamber chamber 21 to communicate with the second safety passage 15 for allowing the second safety device 60 to communicate with the gas discharge port side, (Refer to 'A' portion of FIG. 6).

The resilient member 45 resiliently supports the flow passage shut-off valve 41 so that the flow passage shut-off valve 41, which has moved to the gas pressure rise, returns to the home position when the gas pressure is lowered.

The passage blocking safety device 40 constructed as described above is constituted so that the passage blocking operation opening 41 provided with a plurality of O-rings 43 is inserted into the operation passage 13, the returning elastic member 45 is inserted, And is fixed to an operating port cover 17 provided with a through hole 17-1 for an operator so that one end portion of the blocking operating port 41 is protruded.

See FIGS. 7, 8 and 10.

The return preventing device 50 is configured to prevent the returning elastic member 45 from returning to its original position without a user's operation by fixing the moving flow path blocking operation member 41 to shut off the flow path when the gas pressure rises .

The return preventing device 50 includes a return preventing lever 51 installed to rotate about a short shaft 52 provided at one side of the housing 10 and a lever 51 formed on the return preventing lever 51, And a stopper for preventing rotation of the flow path stopper 41 protruding when the gas pressure is raised by elastically supporting the return stopper lever 51. [ And a protrusion jaw 56 protruding to one side of the housing 10 and controlling the rotational movement of the return preventing lever 51. [

See FIGS. 2 and 8.

The return preventing lever 51 is rotated about the minor axis 52 by the operation of the gas amount adjusting handle 30 provided in the portable gas range and is released from the return preventing groove 44 of the flow passage blocking operation opening 41, So that the blocking operation port 41 can be moved to the home position by the elastic member 45 for returning.

That is, the return preventing lever 51 is provided to be in contact with the control projection 31 provided on the gas amount adjusting handle 30 so that the user can operate the gas amount adjusting handle 30.

Referring to Fig. 14 showing another embodiment,

The anti-return lever 51 'of the anti-return device 50 may be installed in a direction opposite to the gas amount adjusting handle 30 and operated by another operation lever.

The second safety device 60 is a safety device for increasing the pressure of the gas, and the second safety device 60 is a safety device of a combustion type in which a gas flow path is opened to allow communication with the burner part when the gas pressure rises 60 "), or a gas container detachment type safety device 60 " configured to operate a detachable lever 71 provided in a gas container detachable device provided to detach the gas container from the gas inlet when the gas pressure rises Lt; / RTI >

9 and 10,

The combustion type safety device 60 'is configured to supply a part of the gas that has not passed through the gas regulating chamber 20 to the burner portion in order to lower the rising gas pressure when the gas pressure rises.

The safety device 60 'of the combustion type has a cylinder 61 communicating with the second safety passage 15 so that the passage may be blocked by the passage blocking safety device 40, A valve piston 62 provided with a plurality of O-rings housed in the cylinder 61, a safety valve spring 63 elastically supporting the valve piston 62, and a portion of the inner surface of the cylinder 61 A gas flow path groove 64 for allowing the gas flow path to open when the valve piston 62 is moved, and a gas gas pipe 65 for guiding the gas to the burner portion.

The combustion-type safety device 60 'thus operated is operated before the flow-path safety device 40 is operated when the gas pressure rises and a part of the gas that has not passed through the gas regulation chamber 20 is supplied to the burner portion, It is good to be done. This can be controlled by a return valve spring (63) and a resilient member (45) provided on the flow path safety device (40).

That is, when the gas pressure rises, the valve piston 62 of the safety device 60 'of the combustion type is lowered by the increased gas pressure to supply a part of the gas that has not passed through the gas control chamber 20 to the burner portion, So that the pressure gas is lowered (see Fig. 9).

When the gas pressure is lowered, the valve piston 62 of the combustion type safety device 60 'rises to shut off the flow path, thereby blocking the gas supplied to the burner portion without passing through the gas regulation chamber 20.

- When the gas pressure continues to rise without lowering, the flow-path safety device (40) operates to shut off all the flow paths so that the flame of the burner part is exhausted (see Fig. 10).

In the case of the safety device 60 'of the combustion type, which is the flow path safety device 40 and the second safety device 60, after the second safety device 60 is operated after the gas pressure rises, (40) is operated.

For example,

When the gas pressure rises to 4 to 5 kg / cm 2, the combustion type safety device 60 'is operated. If the gas pressure rises to 5 to 7 kg / cm 2 after the above operation, ) Operates to shut off the flow path.

However, when the gas pressure rises, the second safety device 60 may be operated after the line-shutoff safety device 40 is operated.

That is, when the gas pressure rises to 4 to 5 kg / cm 2, the flow path safety device 40 operates to shut off the flow path. When the gas pressure rises to 5 to 7 kg / Thereby allowing the safety device 60 'to operate.

11 to 13,

The safety device 60 "in the gas container detachment type separates the gas container coupled to the gas inlet 11 of the housing 10 to lower the gas pressure when the gas pressure rises .

The safety device 60 "of the gas container detachment system communicates with the operation passage 13 and is connected to a cylinder 61 (not shown) communicating with the second safety passage 15 so that the flow passage can be blocked by the safety device 40 A valve piston 66 provided with a plurality of O-rings housed in the cylinder 61; a safety valve spring 63 for elastically supporting the valve piston 62; And a detachable rod 67 provided below the detachable lever 71 for actuating the detachable lever 71.

The safety device 60 "in the gas container detachment system constructed as described above can be operated before the safety device 40 is operated to raise the gas pressure so that the gas container can be separated (see FIG. 12) The safety device 40 is activated to operate after the flow path of the gas adjustment chamber 20 is shut off so that the gas container can be separated (see FIG. 13) And the safety valve spring 63 can be adjusted.

12,

When the gas pressure rises, the safety device 60 "of the gas container detachment type operates as shown in (a) to separate the gas container. The flow path safety device 40 operates to shut off the flow path.

For example,

When the gas pressure rises to 4 to 5 kg / cm 2, the safety device 60 "of the gas container detachment type operates to separate the gas container (see FIG. 12 (a)), To 7 kg / cm < 2 >, the flow path cut-off safety device 40 operates to cut off the flow path (see Fig. 12 (b)).

13,

When the gas pressure rises, the oil line cut-off safety device 40 operates as shown in (a) to cut off the oil line. If the pressure continues to rise without lowering the gas pressure even after such operation, the safety device 60 "of the gas container detachment type operates as shown in (b) to separate the gas container.

For example,

When the gas pressure rises to 4 to 5 kg / cm 2, the flow path safety device 40 operates to cut off the flow path (see FIG. 13 (a)). The safety device 60 "of the gas container detachment type operates to separate the gas container (see Fig. 13 (b)).

10: Housing
20: gas adjustment chamber
30: Gas quantity control knob
40: Flow cut-off safety device
50:
60: Second safety device
60 ': Combustion type safety device
60 ": Safety device of gas container detachment system

Claims (10)

And a flow-passage shut-off valve for blocking a gas supplied into the gas safety adjusting chamber by an increased gas pressure when the gas pressure rises, the gas safety adjuster comprising:
A gas inlet 11 connected to a gas container formed at one side of the housing 10 is formed with a working passage 13 at a position orthogonally crossed with the connecting passage 12 without an end communicating with the connecting passage 12, And an insertion opening 16 is formed on the opposite side of the insertion passage 16 so as to insert the passage blocking operation opening 41 into the operation passage 13. On the insertion opening 16 side, (17) formed with a through hole (17-1) for the operator is provided at the center so that one end of the body (41) with the anti-returning groove (44)
A gas passage formed in the operation passage to open and close a chamber passage for guiding the gas to the gas adjustment chamber and to block the gas passage for the chamber when the gas pressure rises, A gas guiding hole 42 formed at an inner end of the passage shut-off operation port 41 and adapted to discharge the gas at an intermediate portion thereof, A plurality of O-rings 43 provided on the outer circumferential surface of the oil line shut-off operation opening 41 to block the gas, a return preventing groove 44 formed in an outer end portion of the oil line shut-off operation opening 41, (40) comprising a resilient member (45) composed of a spring for resiliently supporting the operating member (41);
As the gas pressure rises, the oil line shut-off operation port 41 is inserted into the return-preventing groove 44 formed at one side of the oil line shut-off operation port 41, (41) which is installed to rotate about a short axis (52) provided at one side of the housing (10) which prevents the return flow path from being opened and which is elastically supported and moved when the gas pressure rises, (51) inserted into the preventing groove (44) and contacting the projection (31) provided in the gas amount adjusting knob (30); And a return preventing spring 55 for resiliently supporting the return preventing lever 51 so that the fixed state of the flow path shutting opening 41 is released by operating the gas amount adjusting handle 30 for thermal power adjustment 50);
The operating passage 13 communicating with the operating passage 13 in which the passage blocking operation opening 41 of the passage blocking safety device 40 is provided is operated by the pressure gas introduced into the operating passage 13, , And a safety device (60 ') of a combustion type, which is a second safety device configured to open a gas flow path of the gas safety regulator (60'). And a flow-passage shut-off valve for blocking a gas supplied into the gas safety adjusting chamber by an increased gas pressure when the gas pressure rises, the gas safety adjuster comprising:
A gas inlet 11 connected to a gas container formed at one side of the housing 10 is formed with a working passage 13 at a position orthogonally crossed with the connecting passage 12 without an end communicating with the connecting passage 12, And an insertion opening 16 is formed on the opposite side of the insertion passage 16 so as to insert the passage blocking operation opening 41 into the operation passage 13. On the insertion opening 16 side, (17) formed with a through hole (17-1) for the operator is provided at the center so that one end of the body (41) with the anti-returning groove (44)
A gas passage formed in the operation passage to open and close a chamber passage for guiding the gas to the gas adjustment chamber and to block the gas passage for the chamber when the gas pressure rises, A gas guiding hole 42 formed at an inner end of the passage shut-off operation port 41 and adapted to discharge the gas at an intermediate portion thereof, A plurality of O-rings 43 provided on the outer circumferential surface of the oil line shut-off operation opening 41 to block the gas, a return preventing groove 44 formed in an outer end portion of the oil line shut-off operation opening 41, (40) comprising a resilient member (45) composed of a spring for resiliently supporting the operating member (41);
As the gas pressure rises, the oil line shut-off operation port 41 is inserted into the return-preventing groove 44 formed at one side of the oil line shut-off operation port 41, (41) which is installed to rotate about a short axis (52) provided at one side of the housing (10) which prevents the return flow path from being opened and which is elastically supported and moved when the gas pressure rises, (51) inserted into the preventing groove (44) and contacting the projection (31) provided in the gas amount adjusting knob (30); And a return preventing spring 55 for resiliently supporting the return preventing lever 51 so that the fixed state of the flow path shutting opening 41 is released by operating the gas amount adjusting handle 30 for thermal power adjustment 50);
A gas container which is communicated with the operation passage 13 in which the oil passage cut-off operation opening 41 of the oil line cut-off safety device 40 is installed and is operated by the pressure gas introduced into the operation passage 13 is provided so as to be separated from the gas inlet And a safety device (60 ") of a gas container detachment type, which is a second safety device configured to operate a detachable lever (71) provided in the gas container detachable device. 3. The method according to claim 1 or 2,
Wherein the operation sequence of the flow path safety device (40) and the second safety device upon changing the gas pressure is changed to the magnitude of the elastic force of the elastic spring provided to the flow path safety device (40) and the second safety device Gas safety regulator. 3. The method according to claim 1 or 2,
The passage 14 connected to the gas regulating chamber 20 opened and closed by the passage blocking operation opening 41 and the passage 15 connected to the second safety device are opened in a steady state,
The passage 15 connected to the second safety device maintains the opened state even when the passage blocking operation port 41 moves and the passage 14 connected to the gas regulation chamber 20 is shut off,
The passage 14 connected to the gas regulating chamber 20 and the passage 15 connected to the second safety device are both shut off when the passage blocking member 41 is moved until the return preventing device 50 is operated Features a gas safety regulator with flow cut-off. delete delete delete delete delete delete

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