KR200352223Y1 - Gas safety valve having gas pressure regulator in gas range - Google Patents

Abstract

When the pressure of the gas supplied from the gas tank is rapidly increased, a gas safety valve having a structure for shutting off the gas supplied to the burner and separating the gas tank more quickly is provided. The gas safety valve includes a gas inlet, a valve inlet through which a control valve for adjusting the amount of gas is inserted, and a chamber having a diaphragm for adjusting a flow rate of gas in its control, and the gas inlet, the gas inlet, and the valve inlet. A pressure pipe for supplying the supplied gas to the interior of the chamber through the gas inlet, a gas outlet for discharging the gas inside the chamber, and a nozzle connector for supplying the gas vaporized and introduced to the burner A safe rod hole, a safe rod inserted into the safe rod hole with a packer, which opens and closes the gas discharge port and the nozzle connector of the chamber by horizontal movement and simultaneously operates a gas tank separating action link; And sealingly coupled between the membrane coupled to the opening of the safe rod hole And a fluid transfer space plate for transmitting a gas pressure of a connection pipe to the safe rod.

Description

GAS SAFETY VALVE HAVING GAS PRESSURE REGULATOR IN GAS RANGE}

The present invention relates to a gas safety valve having a gas pressure control function, and in particular, when the pressure of the gas supplied from an external gas tank is rapidly increased, at the same time blocking the discharge of the gas filled in the chamber to control the pressure of the gas The present invention relates to a gas safety valve having a structure that allows a tank to be quickly separated.

In general, portable gas stoves are widely used in homes and many places because of the convenience of portability and ease of use. Since the portable gas stove injects the gas supplied from the compact gas tank compressed in a simple state of replacement, the gas of the gas tank must be supplied to the burner at a constant pressure, and a safety device must be provided to safely use the gas stove.

At present, a widely used portable gas stove supplies gas from a gas tank to a burner at a constant pressure as described above, and operates a safety device when the pressure of the gas tank expands rapidly due to external factors, thereby supplying gas from the gas tank. The gas valve is adopted to shut off.

The portable gas stove can be divided into two types according to the shape of the gas tank, one of which is the gas tank, the gas valve and the burner is vertically coupled, the other is the gas tank and gas There is a gas tank separation device that automatically removes the gas tank when the valve and burner part is horizontally coupled and the gas pressure regulator in the gas valve is overloaded.

A general configuration of the portable gas stove provided with the gas safety valve as described above is as shown in FIG. 1. As shown in FIG. 1, the portable gas stove 10 has a trivet and includes a burner unit 14 provided at an upper portion of the case 12, and a gas safety valve capable of adjusting the amount of liquid gas supplied from the outside. 16) and a gas tank 18 which is engaged with the gas safety valve 16 by the action of various links. In this case, the gas stove 10 has a space in which the gas tank 18 is accommodated on one side, and the receiving space has various links and a diaphragm 20 for thermally separating from the case 12. .

The gas safety valve 16 is an important device for securing the safety of the portable gas stove. The gas safety valve 16 is stabilized by supplying the gas liquefied in the gas tank 18 to the burner 14 of the gas stove 10 at a constant pressure. It is intended to be able to ignite in a state. That is, the gas safety valve 16 is provided with a chamber inside which the liquefied gas supplied from the gas tank 18 is converted into the vaporized gas. In addition, a safety device is further provided to separate the gas tank from the gas inlet of the gas safety valve when the gas pressure flowing into the chamber is equal to or greater than the reference pressure.

In this case, the safety device in the gas safety valve 16 drives the safety rod to separate the gas tank 18 from the inlet of the gas stabilizer valve 16 when the gas pressure supplied to the chamber is equal to or higher than a predetermined pressure. ) Is separated from the inlet of the gas safety valve 16.

As described above, the gas pressure supplied to the burner is regulated constantly while vaporizing the liquefied gas supplied from the outside, and when the pressure supplied to the chamber rises rapidly due to external factors, the gas tank is separated from the gas inlet of the gas stabilizer valve. Examples of safety valves for gas stoves include Utility Model Registration No. 20-0259752 (Gas Regulators for Portable Gas Stoves) and Registration Utility Model No. 20-0259746 (Gas Regulator Safety Valves for Portable Gas Stoves).

The gas safety valve disclosed in the Utility Model No. 20-0259746 is configured to operate the push rod of the safety valve inserted in the safety valve housing by a conical coil spring. Normally, the push rod blocks the pressure tube connected to the chamber by the coil spring provided in the housing of the stabilizer valve. When the gas pressure of the pressure tube increases due to the increase in the pressure of the chamber, the push rod is driven to inject the gas tank 18. The action link in close contact with the was released to release.

However, this conventional technique is complicated in the configuration of the safety valve because the push rod is to block the opening of the pressure pipe by the coil spring in the construction of the safety valve, it is possible to continuously operate stable due to the use of the coil spring. There was no problem. For example, when the coil spring is corroded and its elastic modulus is changed, the coil spring cannot function smoothly, and when the coil spring has a large elastic force, the coil spring does not operate. Therefore, there is a problem that the production of the coil spring holding the push rod is not easy.

In addition, most gas safety valves have only a configuration to separate the gas tank from the gas inlet of the gas regulator, as shown in the prior art, and have no technical configuration to open and close the gas outlet in the chamber. There was a risk that the gas tank could explode.

Therefore, the object of the present invention is to supply gas at a constant pressure to the burner of the stove by a very simple configuration, and at the same time the gas pressure control function to drive the safe rod to separate the gas tank when the pressure of the gas tank increases above a certain pressure In providing a configuration of a gas safety valve having a.

Another object of the present invention is to provide a gas safety valve having a structure that is operated in the form of a piston when the pressure of the gas supplied from the outside is adjusted to a constant pressure through the chamber and at the same time the pressure in the chamber is rapidly increased. have.

Another object of the present invention is to provide a tank separation action link that separates the gas tank from the gas stove while blocking the discharge of gas filled in the chamber that vaporizes the liquefied gas when the pressure of the gas tank suddenly increases due to external factors. It is to provide a gas safety valve having a structure capable of driving.

The present invention for achieving the above object, the gas inlet, the valve insert is inserted into the control valve for adjusting the amount of gas supplied to the inlet, the flow amount of the gas supplied through the gas inlet in accordance with the control of the control valve A gas safety valve having a valve body in which a chamber having a diaphragm for adjusting the pressure is provided, the gas inlet and the gas inlet and the valve inlet are formed at the gas inlet through the gas inlet. The safety rod hole formed between the pressure pipe for supplying the inside of the chamber, a gas outlet for discharging the gas inside the chamber, and a nozzle connector for supplying the vaporized inlet gas to the burner, and a packer. Is inserted into and opened and closed between the gas outlet of the chamber and the nozzle connector by a horizontal movement At the same time, a safety rod for operating a gas tank separating action link and a membrane connected to the connection pipe and an opening of the safety rod hole to seal-couple the gas pressure of the connection pipe to the safety rod. And a fluid transfer space plate.

Preferably, the pressure tube and the safe rod hole are integrally formed with the valve body, and the pressure tube is formed in a direction orthogonal to the gas inlet port so that the pressure of the injected gas is quickly transferred to the safe rod hole.

The inlet of the safe rod hole and the head of the always safe rod have a step of at least a lower level, and a step is formed between the gas outlet of the chamber and the nozzle connector inside the safe rod hole so that the packer of the safe rod moves horizontally. It is desirable to open and close the furnace.

Membrane coupled to the head of the safe rod is preferably used for the diaphragm made of a rubber material excellent in the flexible phase.

The gas safety valve of the present invention configured as described above has a safety manufactured in the form of a piston by a membrane installed in a fluid transfer space plate positioned between the pressure tube and the safe rod hole when the pressure of the gas supplied from the gas tank is suddenly increased. By moving horizontally to shut off the nozzle connector and the gas outlet in the chamber, and at the same time actuate the gas tank separation action link can be used more safely.

1 is a view showing the configuration of a typical portable gas stove

Figure 2 is a view showing a perspective view of the safety valve of the gas stove having a gas pressure adjusting function according to an embodiment of the present invention.

3 is a plan view showing a safety valve of a gas stove having a gas pressure adjusting function according to a preferred embodiment of the present invention.

4 to 6 are cross-sectional views taken along line A-A ', line B-B', and line C-C 'of the plan view shown in FIG.

<Explanation of symbols for the main parts of the drawings>

22: valve body, 24: chamber

26: gas inlet 28: valve inlet

30: pressure pipe 32: safe rod hole

34: nozzle connector 36: gas inlet

40: gas outlet 45: safe rod

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, it should be understood that the present invention can be implemented in many different forms and is not limited to the described embodiments. It should be noted that the embodiments of the present invention described below are intended to sufficiently convey the spirit of the present invention to those skilled in the art. It should also be noted that detailed description of known functions and configurations in the art that may unnecessarily obscure the subject matter of the present invention are omitted.

2 is a view showing a perspective view of a safety valve of a gas stove having a gas pressure control function according to a preferred embodiment of the present invention, Figure 3 is a safety valve of a gas stove having a gas pressure control function according to a preferred embodiment of the present invention It is a figure which shows a top view. FIG. 4 is a cross-sectional view taken along line AA ′ of FIG. 3 to explain the coupling state between the chamber and the safe rod hole and the safe rod and the positional relationship between the nozzle holes, and FIG. 5 is a cross-sectional view taken along line B of FIG. A cross-sectional view taken along the line -B 'to explain the relationship between the chamber, the regulating valve insert, the gas inlet, the safe opening and the gas inlet formed between the chamber and the regulating valve insert. 6 is a cross-sectional view taken along the line C-C 'of FIG. 3 to explain the connection relationship between the gas inlet and the pressure tube in the chamber.

2 to 6, the valve body 22 of the gas safety valve 16 according to the present invention has a gas inlet 26, a control valve 46 for adjusting the amount of gas supplied to the inlet 26. Is formed in the valve insertion hole 28 is inserted into the upper portion and the chamber 24 for vaporizing the liquid gas and adjusting the pressure of the gas is formed integrally.

The chamber 24 and the hinge fastening bosses 38 for hinge coupling an opening / closing side (not shown) for opening and closing the gas inlet 36 connected to the gas inlet 26 in the chamber 24. A gas outlet 40 is formed for supplying the gas filled in the nozzle side, and an upper portion thereof is sealed by a diaphragm (not shown) and a chamber cover (not shown).

Such a configuration and operation of the valve body 22 to the chamber 24 is apparent to those already in the art. For the detailed configuration and operation thereof, refer to the description of the above-mentioned Registration Utility Model No. 20-0259752 (Gas Regulator of Portable Gas Stove).

The gas outlet 40 in the chamber 24 is connected to a valve insertion hole 28 formed at a lower portion thereof, and the gas discharged to the gas discharge hole 40 is connected to a gas fluid formed at a lower portion of the valve insertion hole 28 ( 41 is connected to the safe rod hole 32. In addition, a pressure pipe 30 integrally formed in the valve body 22 is connected to the gas inlet 26 formed in the valve body 22 and the gas inlets 36 in the chamber 24, as shown in FIG. 6. The pressure tube 30 supplies the gas supplied to the gas inlet 26 to the inside of the chamber 24 through the gas inlet 36.

The safe rod hole 32 connected to the gas fluid passage 41 formed at the lower portion of the valve insert 28 is formed to have a predetermined length, and a nozzle connector 34 connected to a burner (not shown) in a lower direction thereof. ) Is formed. In this case, a step 50 is formed between the gas fluid passage 41 and the nozzle connector 34 formed in the safe rod hole 32 as shown in FIG. 4.

As shown in FIG. 4, a safe rod 45 having a packer 42 packed in a stepped portion is inserted into the safe rod hole 32. The packer 42 of the safe rod 45 is a safe rod hole (through a gas fluid passage 41 which is opened and closed so that the amount of fluid is adjusted according to the rotation of the control valve 46 as the safe rod 45 moves horizontally). The step 50 is opened and closed to supply or block the vaporized gas introduced into the inside of the 32 to the nozzle connector 34 formed at the bottom thereof.

In addition, the distal end 60 of the safe rod 45 is protruded to the outside of the safe rod hole 32 or placed in an internal position as it moves horizontally. The end 60 of the safe rod 45 is close to an action link that separates the gas tank from the gas stove. When the end 60 of the safe rod 45 protrudes out of the safe rod hole 32, the gas tank is closed. Is separated.

Meanwhile, at least one step is formed at an inlet of the safe rod hole 32 into which the safe rod 45 is inserted and at a head of the safe rod 45 as shown in FIGS. 2 and 4. This step is to set the limit of the movement of the safe rod 45 when the pressure is applied to the head of the safe rod 45, the horizontal movement occurs, the packer 42 packed in the middle of the safe rod 45 This is to prevent sudden abrasion of).

As shown in FIGS. 2 and 4, the inlet of the safe rod hole 32 has a coupling groove 37 formed therein, and the coupling groove 37 has a very flexible membrane 35 coupled thereto. The membrane 35 may use a diaphragm that is currently widely used.

The opening of the pressure pipe 30 formed in the valve body 22 and the opening of the safe rod hole 32 are connected to the fluid transfer space plate 33 as shown in FIGS. 1 and 4, and such a fluid transfer space plate 33 is also formed integrally with the valve body 22. Outside the fluid delivery space plate 33 is grooved plate cover 39 to the inside to transfer the gas pressure of the pressure tube 30 to the membrane 35 coupled to the inlet of the safe rod hole 32 very appropriately Is combined.

Referring to the operation of the gas safety valve 16 of the present invention configured as described above in detail. First, before describing the operation of the present invention, it is assumed that the pressure of the gas supplied to the gas inlet 26 of the body valve 22 is constant, so that the step 50 in the safe rod hole 32 is opened. do.

When gas is supplied from the gas tank 18 to the gas inlet 26 of the valve body 22, the gas is supplied into the chamber 24 through the pressure pipe 30 and the gas inlet 36 connected thereto. At this time, if the pressure of the gas tank 18 is normal, the pressure of the gas supplied to the pressure tube 30 does not push the membrane 35 provided at the inlet of the safe rod hole 32 in the direction of the safe rod 45. do.

Therefore, if the pressure of the gas tank 18 is normal, the gas supplied to the gas inlet 36 in the chamber 24 and filled in the chamber 24 is the gas outlet 40, the control valve 46 and the control valve insert ( It is supplied to the inside of the safe rod hole 32 through the gas fluid passage 41 formed in the lower portion of 46. The gas supplied into the safe rod hole 32 is supplied to the gas burner through the nozzle connector 34 through the open step 50 to be ignited.

If, due to external factors, the gas pressure of the gas tank 18 is sharply increased, the pressure in the pressure tube 30 of the valve body 22 is also rapidly increased. When the pressure in the pressure tube is sharply increased, the pressure between the fluid transfer space plate 33 and the plate cover 37 covering it is also rapidly increased so that the membrane 35 made of the diaphragm is the safe rod 45. ) To move horizontally.

When the safe rod 45 is horizontally moved inside the safe rod hole 32, the packer 42 packed in the middle of the safe rod 45 closes the step 50 so that the valve insert 28 is closed. The gas flowing from the gas fluid passage 41 formed in the lower portion of the furnace connector 34 is blocked. In addition, the end 60 of the safe rod 45 protrudes to the outside of the safe rod hole 32 by the horizontal movement to operate the gas tank separation action link to move the gas tank 18 of the valve body 22. It is separated from the gas inlet 26.

Therefore, the gas safety valve according to the present invention, when the pressure of the injected gas is rapidly increased to a predetermined pressure or more, the gas tank valve body 22 while at the same time blocking the discharge of the remaining gas filled in the chamber (24) Separating quickly from the gas tank can quickly cope with pressure changes.

As described above, the gas safety valve according to the present invention blocks the discharge of the gas filled in the chamber of the gas regulator when the pressure of the gas tank is equal to or higher than a predetermined pressure, and at the same time automatically separates the gas tank from the inlet of the valve body. It is possible to prevent the explosion of the tank, which may occur when the pressure expands.

Claims (4)

Integrates a chamber with a gas inlet, a valve insert into which a control valve for adjusting the amount of gas supplied to the inlet is inserted, and a diaphragm for adjusting the flow rate of the gas supplied through the gas inlet according to the control of the control valve. In a gas safety valve having a valve body, A pressure pipe formed at the gas inlet, the gas inlet, and the valve inlet to supply the supplied gas into the chamber through the gas inlet; A safe rod hole formed between a gas outlet for discharging the gas in the chamber and a nozzle connector for supplying the gas vaporized and introduced to the burner; A safe rod having a packer inserted into the safe rod hole and opening and closing between the gas outlet of the chamber and the nozzle connector by a horizontal movement and operating a gas tank separating action link; And a fluid transfer space plate sealingly coupling between the connecting pipe and the membrane coupled to the opening of the safe rod hole to transfer the gas pressure of the connecting pipe to the safe rod. The gas safety valve of claim 1, wherein the pressure pipe and the safe rod hole are integrally formed with the valve body, and the pressure pipe is formed in a direction orthogonal to the gas inlet. According to claim 1 or 2, wherein the inlet of the safe rod hole and the head of the always safe rod has a step of at least one or more, and to form a step between the gas outlet of the chamber and the nozzle connector in the interior of the safe rod hole Gas safety valve, characterized in that the packer of the safe rod is formed to open and close the gas fluid passage during horizontal movement. 4. The gas safety valve of claim 3, wherein the membrane coupled to the head of the safe rod is a rubber diaphragm having a very good soft phase.