WO2015129982A1

WO2015129982A1 - Safety controller provided with flow channel cut-off and recovery apparatus to prevent overpressure of portable gas range

Info

Publication number: WO2015129982A1
Application number: PCT/KR2014/010117
Authority: WO
Inventors: 이영준
Original assignee: 주식회사 다복코리아
Priority date: 2014-02-28
Filing date: 2014-10-27
Publication date: 2015-09-03
Also published as: KR101402859B1

Abstract

The present invention relates to a safety controller equipped with a flow channel cut-off and recovery apparatus to prevent overpressure of a portable gas range, the safety controller cutting off the flow channel when an accident occurs due to the overpressure of a portable gas range using liquid butane gas as fuel, thereby removing the danger therewith, and allowing the flow channel to be reopened for reuse after a cut-off. The present invention comprises: a shielding means (40) having a reset button (41) which is inserted into the end of a gas inlet channel (20) from the body (10) side, and a cut-off valve (46) having three-stage structure; a cam (51) protruding to one side in the center of the interior of a handle/knob (50) for lighting and extinguishing a fire; and a hinged return lever (60) on the body (10) between the reset button (41) and the cam (51), wherein one side of the return lever (60) is positioned at the rear end of the reset button (41) and the other side is positioned so as to be pushed by the cam (51), protruding in the interior, when the handle/knob (50) is rotated.

Description

Safety regulator with flow shutoff and return for preventing overpressure in portable gas range

The present invention is a flow path for preventing the overpressure of the portable gas range to prevent the danger by blocking the flow path in the event of an accident caused by the overpressure of the portable gas range using liquefied butane gas as fuel, and to open the flow path when reuse after blocking the flow path. A safety regulator with a shut-off and return device. More specifically, a shut-off valve, which is a shielding means for operating by an overpressure of gas at an inner end of a gas inflow path, in a structure in which a gas inflow path and a gas discharge path are formed on the same line. The cam is provided in a three-stage structure and the reset button protruded by the overpressure is provided with a cam installed inside the knob knob to operate the return lever to open the blocked flow path.

In general, portable gas ranges using liquefied butane gas as fuel are used for various types of heating means not only indoors but also outdoors because of their simple structure and easy handling and use. Various types of safety devices have been developed, and most of the safety devices detect heat and pressure changes to separate butane gas containers from gas cocks and stop the gas supply, or control cylinders to control heat and pressure changes. However, although sensors are used, there is a risk of secondary accidents due to frequent failures and malfunctions. Therefore, a device for detecting and blocking the leakage of gas in the gas cock installed in the gas range itself is required.

As a conventional safety cock, Utility Model Registration No. 20-199484 (Safety Cock for Portable Gas Range) and Patent Registration No. 10-0883308 (Safety Cock for Portable Gas Range with Improved Flow Path) have been presented.

The utility model registration of the former is a protrusion rod is inserted into the insertion hole of the mounting hole formed with a guide groove on the outer side, and the guide groove is pressed with a spring to form the inclined surface on one side to fix the fixing plate with the casing and the coupling bolt and press The piece has a structure in which the inclined surface is formed on the side of the protruding rod so as to slide along the guide groove formed in the mounting hole, but the protruded rod is returned to the inside when press-fitted.

The latter patent registration has a gas inlet and a gas outlet in a straight line, the outer end of the gas inlet to form an injection port with a built-in injection valve, the inner end of the shield having a reset button inserted from the side of the body A means (reset guide, leaf spring, shut-off valve) is formed, and a control valve is formed at the end of the gas discharge path and an orthogonal discharge port is formed at the lower side so that the gas supplied from the inlet to the gas inlet passage is penetrated with the gas chamber. It is supplied to the inside of one inlet hole and the gas inside the gas chamber is supplied to the gas discharge path through the discharge hole so that the constant pressure supply through the outlet.

The electrons block the gas flow path in the gas cock under the action of the valve shaft and allow the user to manually return the press piece for reuse. However, the safety means applied to the gas cock is a new flow path crossing the existing flow path at right angles. There is a drawback in that the production problem and mold cost, weight and volume increases because it is additionally applied, there is also a problem in the use of the user to manually return the pressing piece when reusing the gas flow after reuse.

In addition, the latter simplifies the gas inlet and the gas outlet into a single straight form, so that a shielding means for automatically blocking the flow path at the inner end of the gas inflow path when the overpressure occurs is formed to secure stability and positive pressure into a single flow path. Supply and overpressure cut off, but same as the former, there is a problem that the user has to reset the reset button by manual operation, and the force for resetting is about 4Kg (the area of the shutoff valve is 5.5cm2). There was a problem.

In both the former and the latter, the opening of the flow path by returning the shielding means operated in the overpressure accident to its original position is dependent on manual operation. In order to improve this, the method defined in the Gas Safety Corporation's regulations (Article 8 of the Manufacturing Standard Structure), Shut-off safety devices stipulate that they should be manufactured in a structure that should not be automatically returned after operation, so that a return device that conforms to the law is required.

Therefore, the present invention has been created for the purpose of solving the above-mentioned problems, the valve bushing shielding means for automatically blocking the flow path of the gas when the overpressure occurs in the inner end of the gas inlet path located on the same straight line as the gas discharge path, By installing a shut-off valve formed of a three-stage structure of the valve shaft and the valve body, it ensures stability in use, and the shut-off valve of the three-stage structure is 2.25cm2, opening the reset button with an operating force of 1Kg when opening the blocked flow path. The return lever of the hinge structure is installed on one side of the body of the safety cock and the reset button on one side is located on the cam installed on the inside of the knob knob. Cam can operate the return lever to open the blocked flow path so that the overpressure It is possible to provide a safety regulator equipped with a flow shutoff and return device for preventing overpressure in a portable gas range which allows the flow passage to be opened semi-automatically when the flow path is blocked and reused.

The present invention forms a shielding means having a reset button inserted from the body side at the inner end of the gas inlet and a three-stage shut-off valve and forming a cam projecting to one side at the inner center of the ignition and fire extinguishing knob knob. The return lever is installed in the body by a hinge structure between the reset button and the cam, but one side of the return lever is positioned at the rear end of the reset button, and the other side can be pushed by the protruding cam on the inside during the rotation operation of the knob knob. It is done.

In addition, the three-stage shutoff valve is composed of a valve bushing, the valve shaft and the valve body and characterized in that the area of the shutoff valve is 2.25cm2.

Therefore, in the present invention, when the portable gas range is used, a shielding means for automatically shutting off the flow path of gas when an overpressure occurs is provided with a shut-off valve formed of a three-stage structure of a valve bushing, a valve shaft, and a valve body to ensure stability in use. When opening the blocked flow path by making the shutoff valve area 2.25cm2, it is possible to open the reset button with a small operating force of 1Kg, and the hinge lever return lever is installed on one side of the body of the safety cock to rotate the handle knob. By adopting the semi-automatic method of opening the blocked flow path by operating this return lever, it is effective to make it easy to use while satisfying the relevant regulations.

1 is an exploded perspective view showing the overall structure of the present invention;

2 is a cross-sectional view of the present invention

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

1 is a separate perspective view showing the overall structure of the present invention, a valve bushing, a valve shaft, and a shut-off valve installed at an inner end of a gas inflow path installed on the same line as a gas discharge path on one side of a body of a safety cock of a gas range. The valve body has a three-stage structure and shows a structure in which a return lever is provided between a reset button provided on the side of the body and a cam installed on the inside of the knob knob, and FIG. 2 is a cross-sectional structure diagram of the present invention. The protruding cam pushes one side of the return lever when the knob knob rotates and the other side presses the reset button to open the flow path.

An injection hole in which a cover 14 having a needle 12 and a diaphragm 13 is mounted on an upper portion of the body 10 in which a gas chamber 11 is formed, and an injection valve 21 in communication with the gas chamber 11 is embedded. The gas inlet path 20 having the 22 formed thereon, and the gas outlet path 30 having the control valve 31 and the outlet port 32 formed in a straight line, and the supply gas is provided in the gas chamber 11 through the inlet hole 15. In the safety regulator equipped with a flow path blocking and return device for preventing overpressure of the portable microwave oven, which is supplied to the outlet and the gas is supplied to the outlet 32 through the discharge hole 16,

A handle knob for ignition and fire extinguishing is formed on the inner end of the gas inlet passage 20 with a reset button 41 inserted from the side of the body 10 and a shutoff valve 46 having a three-stage structure. A cam 51 protruding to one side is formed at the inner center of the 50, and the return lever 60 is installed in a hinge structure between the reset button 41 and the cam 51 in a hinge structure, but the return lever One side of the 60 is positioned at the rear end of the reset button 41 and the other side is configured to be pushed by the cam 51 protruding inward during the rotation operation of the knob knob 50.

The three-stage shutoff valve 46 includes a valve bushing 46a, a valve shaft 46b, and a valve body 46c.

The area of the shutoff valve 46 is 2.25 cm 2.

In the drawings, reference numeral 42 is a fixture, 43 is a spring, 44 is a reset guide, 45 is a leaf spring, and 47 is an inclined groove.

The present invention as described above prevents the risk by blocking the flow path by the three-stage shut-off valve in the event of an accident due to overpressure of the portable gas range using liquefied butane gas as a fuel cam installed on the knob knob when the flow path is blocked and reused Therefore, the return lever is to provide a safety regulator with a flow path blocking and return device for preventing the overpressure of the semi-automatic portable gas range by pressing the reset button to open the flow path.

As shown in Figures 1 and 2, the safety cock of the portable microwave oven is composed of a device for blocking the flow path when the overpressure occurs and the return device for reuse after blocking the flow path.

The shielding means 40 for blocking the flow path when the overpressure occurs is the reset button 41 and the gas inflow path 20 installed by the elastic force of the spring 43 to the fixed body 42 inserted from the side of the body 10 It is composed of a reset guide 44, the leaf spring 45 and the shut-off valve 46 is inserted into the inside.

The shut-off valve 46 is composed of a three-stage structure of the valve bushing 46a, the valve shaft 46b, and the valve body 46c, and inserts the valve shaft 46b into the valve body 46c to form a valve shaft ( The valve bushing 46a is coupled to the tip of 46b).

The area of the shut-off valve 46 formed in the three-stage structure is preferably 2.25 cm 2 and is formed in the above-described structure so that the reset button 41 which cuts off the flow path when an overpressure occurs can be operated with a force of 1 kg. The blocked flow path can be easily opened.

The operation structure for blocking the flow path due to the overpressure is generated when the gas of excessive pressure flows through the gas inlet passage 20 so that the gas pressure is not supplied to the gas chamber 11 through the inlet hole 15. The shutoff valve 46 composed of the valve shaft 46b and the valve body 46c is pushed out, and thus the outer surface of the valve bushing 46a of the shutoff valve 46 blocks the inlet hole 15 so that the gas chamber 11 is no longer provided. Overpressure gas is not supplied inside.

At this time, the valve bushing 46a of the shut-off valve 46 pushed out pushes the leaf spring 45, which is a circular curved body, and the reset guide 44 is pushed toward the control valve 31, and the inclined groove portion of the reset button 41 47, the three-stage shut-off valve 46 is kept pushed out to keep the flow path to the gas supply.

When the flow path is blocked due to the overpressure of the gas as described above, the operation for opening the flow path for reuse after inspection is to release the shielding state by pressing the reset button 41 toward the body 10 to open the body. You do not need to simply turn the knob 50 to its original position and then rotate it again.

The return device of the blocked flow path forms a cam 51 protruding to one side in the inner center of the knob knob 50, and returns the return lever 60 to the body 10 between the reset button 41 and the cam 51. It is installed in the hinge structure so that one side of the return lever 60 is located at the rear end of the reset button 41, and the other side is located at the part which is in contact with the cam 51 protruding inward during the rotation operation of the knob knob 50. Configure.

In the return device formed as described above, when the knob knob 50 is rotated to the original position (reverse rotation) and then rotated forward, one side bar of the return lever 60 is pushed while the cam 51 installed inside the knob knob 50 rotates. As the bar opposite the hinge shaft pushes the reset button 41, the reset guide 44 in the inclined groove 47 of the reset button 41 is pushed to the rear end, and the leaf spring 45 and the three-stage shutoff valve 46 Push to open the inlet hole 15 between the gas inlet path 20 and the gas chamber 11 to supply gas.

The bar in contact with the cam 51 of the return lever 60 is preferably curved to minimize the friction coefficient.

In addition, the above-described device may correspond to changing the link structure when the position of the reset button 41 is installed on the left and right sides or the rear of the safety cock.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. And such changes fall within the scope of the claims.

Claims

An injection hole in which a cover 14 having a needle 12 and a diaphragm 13 is mounted on an upper portion of the body 10 in which a gas chamber 11 is formed, and an injection valve 21 in communication with the gas chamber 11 is embedded. The gas inlet path 20 having the 22 formed thereon, and the gas outlet path 30 having the control valve 31 and the outlet port 32 formed in a straight line, and the supply gas is provided in the gas chamber 11 through the inlet hole 15. In the safety regulator equipped with a flow path blocking and return device for preventing overpressure of the portable microwave oven, which is supplied to the outlet and the gas is supplied to the outlet 32 through the discharge hole 16,

A handle knob for ignition and fire extinguishing is formed on the inner end of the gas inlet passage 20 with a reset button 41 inserted from the side of the body 10 and a shutoff valve 46 having a three-stage structure. A cam 51 protruding to one side is formed at the inner center of the 50, and the return lever 60 is installed in a hinge structure between the reset button 41 and the cam 51 in a hinge structure, but the return lever One side of the (60) is located at the rear end of the reset button 41 and the other side of the portable gas range characterized in that it can be pushed by the cam 51 protruding in the inner side during the rotation operation of the knob knob 50 Safety regulator with flow shutoff and return to prevent overpressure.
The method of claim 1,

The three-stage shut-off valve 46 is composed of a valve bushing (46a), a valve shaft (46b) and the valve body (46c) characterized in that the safety with the flow path blocking and return device for preventing overpressure of the portable gas range. regulator.
The method of claim 1,

Safety regulator with a flow path blocking and return device for preventing overpressure of the portable gas range, characterized in that the area of the shutoff valve 46 to 2.25cm 2.