KR200355937Y1 - Apparatus of automatic ignition for gas range with switch contact - Google Patents

Abstract

The present invention relates to safety devices that prevent the gas can from exploding due to an increase in the pressure in the gas can when the portable burner is used. More specifically, the internal pressure of the gas can separated by the can releasing device is increased by radiant heat. When the deformable threshold pressure of the gas can is reached, the stem portion of the gas can is protruded by the internal pressure, and the stem of the gas can is connected to the gas inlet, and at the same time, the gas is introduced and connected to one side of the safety part, and a gas discharge pipe for discharging the gas, The gas discharge pipe includes a mixing pipe connected to one side and a burner connected to the mixing pipe, the ignition device for generating an ignition flame provided on one side of the burner while being spaced apart from the lower one side of the ignition trigger located in the safety part. An ignition switch and an ignition trigger for operating the ignition switch. Explosion-proof portable gas cooking appliance by a switch contact, which relates to an automatic ignition device.

Conventionally, when the gas can is remounted, the gas can simply consists of a device for discharging the remaining gas to the outside, thereby causing an unexpected dangerous condition when the gas discharged to the outside approaches another ignition source. Is holding.

Therefore, the present invention discharges the gas remaining in the gas can back to the burner and at the same time automatically operates the ignition device provided on one side of the burner portable gas stove explosion prevention automatic ignition by the switch contact to burn the discharged gas To provide.

Description

Automatic ignition device for explosion prevention of portable gas stove by switch contact {APPARATUS OF AUTOMATIC IGNITION FOR GAS RANGE WITH SWITCH CONTACT}

The present invention is the stem portion of the gas can by the internal pressure when the deformation threshold pressure range of the gas can, for example, the separated gas can increases the internal pressure due to radiant heat and reaches the deformation threshold pressure of the gas can (13 kg / ㎠ or more) As this protrudes, the stem of the gas can is connected to the gas inlet, and the gas is introduced, and the gas is discharged to the outside through the burner through the mixer, and at the same time, the gas is automatically discharged by operating the ignition device provided at one side of the burner. It is an object of the present invention to provide a portable gas stove explosion protection automatic ignition by the switch contact to burn the.

Generally, as shown in FIG. 1, the portable gas stove may be connected to a burner 100 equipped with a gas ignition device, a detachable device 101 capable of attaching and detaching a gas can 200, and a gas can 200. A gas inlet for the gas can is installed, the gas can mounting unit 103 containing the regulator 102 for controlling the discharge amount of the gas supplied to the burner 100 through the gas inlet, and the case 104 for fixing these parts. ), The burner 100 and the regulator 102 are interconnected by a mixing tube.

These portable gas stoves are often used as cookware for simple cooking of food outdoors or indoors due to light weight and portability, so they may be exploded or fired due to user's carelessness or external heat source (for example, radiant heat). There is always an inherent risk of causing a safety accident.

Therefore, according to the regulations of the Korea Gas Safety Corporation, when the internal pressure of the gas can suddenly rises to an abnormal high pressure in order to prevent the above safety accident, for example, the dangerous pressure (5-7kg / cm 2, 4-6kg in Japan). It is mandatory to have a safety device to prevent explosion by automatically shutting off the gas supply within the range of / cm2).

Figure 2 is a front view showing an example of a safety device for a portable gas stove according to the prior art, it shows the flow path blocking type.

More specifically, the regulator 102 has a gas passage hole 71 formed at one side of the gas passage connected to the gas injection hole 79, and the gas through the gas passage hole 71 is formed through the gas discharge hole 77. It is discharged to the outside. It is connected to the sealing chamber 72, the sealing chamber 72 has an open bottom, a guide hole is formed in the center, the sealing shaft 83 corresponding to the guide hole in the sealing chamber 72 is It is mounted, the upper end of the sealing shaft is formed with a locking jaw, the sealing chamber 72 is mounted on the upper surface, the compression spring 76 is mounted between the lower portion of the locking jaw and the lower cap 83.

The force of the compression spring 76 is greater than the dangerous pressure (5 ~ 7kg / ㎠ or 4 ~ 6kg / ㎠) which is the operating pressure of the conventional container detachable safety device, and is designed to have a force less than the deformation critical pressure of the container When the dangerous pressure is first reached, the gas can is detached, and the internal pressure of the gas can increases due to the radiant heat emitted from the pot or the plate continuously even when the gas can is removed. As soon as the upper part (stem part) of the gas can protrudes, the stem of the gas can is reattached to the gas inlet.

Such a prior art is due to the safety device for simply discharging the gas to the outside when the internal pressure of the gas can is expanded by the continuous radiant heat after the gas can is removed, or more than 13kg / ㎠ Unforeseen major accidents have always been inherent.

That is, in the prior art, the gas is discharged to the outside through the gas discharge hole 77, the discharged gas is introduced into another gas stove operating in the vicinity, or discharged to other fire sources, unexpected There is a risk inherent in the possibility of causing a major accident.

The present invention is designed to solve this problem, the present invention is the gas can separated by the can remover, the internal pressure of the gas can is increased by the radiant heat, the deformation pressure of the gas can reaches the stem portion of the gas can by internal pressure As it protrudes, the stem of the gas can is connected to the gas inlet, and gas is introduced. The gas is discharged through the mixing pipe to the outside through the burner, and at the same time, it operates the ignition device provided at one side of the burner to discharge the gas. It is to provide a portable gas stove explosion-proof automatic ignition by the switch contact to burn the.

That is, the gas discharged to the outside from the gas discharge pipe is discharged to the burner through the mixing pipe, and by burning the discharged dangerous gas, the gas is discharged to other fire sources nearby, unexpected large accident It is to provide a portable gas stove explosion-proof automatic ignition by the switch contact to prevent the.

1 is a perspective view of a typical portable gas stove,

Figure 2 is a front view showing an example of a safety device of a portable gas stove according to the prior art,

Figure 3 is a perspective view showing the main part of the portable gas stove according to the present invention,

Figure 4a is a schematic diagram showing a first embodiment of a portable gas stove according to the present invention,

4b is a schematic view showing a second embodiment of a portable gas stove according to the present invention;

Figure 4c is a schematic diagram showing a second housing cross section of the first embodiment according to the present invention,

4d is a longitudinal sectional view showing a third embodiment of a portable gas stove according to the present invention;

5 is a schematic view showing a modified state of the gas can according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: gas passage 11, 11a, 11b: through air

13a, 13b: internal passage 13c: gas passage groove

14a. 14b: first and second sealing members 16a: sealing portion

15, 15a, 15b: Bottom plate 16: Moving pin

17: low pressure spring 18: high pressure spring

19: regulator 20: gas discharge pipe

21: gas hole 23, 23a, 23b: O-ring

24: main nozzle 25: housing

25a: first housing 25b: second housing

26: guide ball 27: mixing tube

28: burner 29: gas can

30: can upper 31: stem

35: safety department 36: ignition

37: ignition switch 38: slider

39: seating control unit 40: ignition trigger

41: contact member 42: switch body

43: vacuum switch or micro switch

Hereinafter, a portable gas stove explosion-proof automatic ignition device by a switch contact according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing the main part of a portable gas stove according to the present invention, Figure 4a is a schematic view showing a first embodiment of a portable gas stove according to the present invention,

A gas passage 10 formed inside the regulator 19 for gas discharge,

A safety unit 35 connected to the gas passage 10, a mixing pipe 27 connected to one side of the safety unit 35, and a gas discharge pipe 20 for discharging the gas and the gas discharge pipe 20 connected to one side; Including a burner 28 to which the mixing pipe is connected,

An ignition switch (37) for activating an ignition device (36) for generating an ignition spark provided on one side of the burner (28) while being spaced apart from the lower one side of the ignition trigger (40) located in the safety part (35);

It relates to a portable gas stove explosion-proof automatic ignition device by a switch contact, characterized in that it comprises a ignition trigger 40 for operating the ignition switch (37).

If you explain in detail the principle of operation,

If the internal pressure of the gas can 29 increases due to continuous radiant heat even after the gas can 29 is separated, the gas can 29 is expanded, and the stem provided on the gas can 29 protrudes, thereby causing the gas It will be refitted in the inlet.

As a result, the gas remaining in the gas can 29 is introduced into the gas stove again, and the inlet gas pressure is 13 kg / cm 2 or more, and the high pressure gas is passed through the gas discharge pipe 20 to the mixing pipe 27. At the same time as the discharge to the burner 28, the spark for ignition is generated in the ignition device 36 provided on one side of the burner 28 to burn the high-pressure gas.

In order to automatically generate a spark of the ignition device 36, as an embodiment, an inclined surface is formed at a predetermined angle on one side of the lower side of the ignition trigger 40, the corresponding ignition switch 37 is the ignition trigger Composed of a contact member 41 and the switch body 42 provided to correspond to the inclined surface of the 40, when the high-pressure gas of 13kg / ㎠ or more flows into the gas stove, the ignition trigger 40 to open the high-pressure spring (18) While lowering while compressing, when the contact member 41 is pushed down while reaching the position of the contact member 41, the contact member 41 is in contact with the switch body 42. As a result, the ignition switch 37 is operated to generate sparks in the ignition device 36 provided at one side of the burner 28 by operating the ignition switch 37 to burn the gas discharged to the burner 28. will be.

In another embodiment, the ignition trigger 40 is made of a magnetic material, the ignition switch 37 corresponding thereto is a vacuum switch 43 or a micro switch (made to be operated by the magnetic material of the ignition trigger 40) ( 43) to select any one.

When explaining the operation principle, the magnetic ignition trigger 40 is lowered as the high pressure gas of 13kg / ㎠ or more flows into the gas stove to reach the position where the vacuum switch 43 or the micro switch 43 is mounted, By operating the vacuum switch 43 or the micro switch 43 is connected to the ignition switch 37 generates a spark in the ignition device 36 provided on one side of the burner 28, discharged to the burner 28 To burn the gas.

Figure 4a is a longitudinal sectional view showing a first embodiment of a portable gas stove according to the present invention,

This is the first embodiment of the safety unit 35,

The safety part 35 is

The gas passage 10 and the through hole (11b) is provided on the upper side, the projection 33 is provided on the lower side of the through hole (11b), the gas pressure of the regulator 19 on one side of the side to the outside A second housing having a gas discharge pipe 20 connected to one side of the mixing pipe 27, a lower plate 15b for sealing the lower surface of the safety part 35, and a gas passage groove 13c on an inner wall thereof. The second sealing member 14b and the second sealing member 14b, which are supported by the high pressure spring 18 to open the through hole 11b and correspond to the protrusion 33, are seated therein. The slider 38 is configured to be slidably installed up and down, and an ignition trigger 40 attached to the lower side of the slider.

The second sealing member 14b is a rubber material having elasticity to prevent gas leakage when the second sealing member 14b is in close contact with the protrusion 33.

Figure 4b is a longitudinal sectional view showing a second embodiment of a portable gas stove according to the present invention,

This is a second embodiment forming the safety part 35,

The safety part 35 is

The gas passage 10 and the through hole (11b) is provided on the upper side, the projection 33 is provided on the lower side of the through hole (11b), the gas pressure of the regulator 19 on one side of the side to the outside A second housing having a gas discharge pipe 20 connected to one side of the mixing pipe 27, a lower plate 15b for sealing the lower surface of the safety part 35, and a gas passage groove 13c on an inner wall thereof. The second sealing member 14b and the second sealing member 14b, which are supported by the high pressure spring 18 to open the through hole 11b and correspond to the protrusion 33, are seated in the 25b. A seating adjusting unit 39 is provided, and a lower hemispherical groove is formed at a lower end of the seating adjusting unit 39, and a slider 38 and a slider installed to be slidable up and down are formed to correspond to the groove. It consists of an ignition trigger (40) attached to the lower side of (38).

The size of the hemispherical groove formed in the lower end of the seating adjustment unit 39 is formed to be larger than the size of the hemispherical groove formed in the upper end of the slider 38 installed to correspond thereto.

The shape and relative size of the hemispherical uneven groove is to provide a very flexible function to adjust the position so that the second sealing member 14b is closely seated in the through hole (11b) to prevent the outflow of gas.

Figure 4c is a schematic view showing a second housing cross section of the first embodiment and the second embodiment according to the present invention, showing an example in which the gas passage groove (13c) is provided in the inner wall in the axial direction, which is the second housing on the inner wall The O-ring 23b is held in close contact with the airtight state, and when the second sealing member descends, gas passes through the inner passage 13b.

In the first and second embodiments of the present invention, the lower plate is provided with a through hole 11a connected to the gas flow path 10 on the upper side and a guide hole 26 on the lower side, separately from the second housing. 15a are coupled to each other so as to be supported by the low pressure spring 17 in the first housing 25a which is empty and positioned so as to close the through hole 11a by the first sealing member 14a and extend to a predetermined length. It consists of a movable pin 16, the end of which is inserted into the guide hole 26,

When the internal pressure of the gas can rises during the use of the portable gas stove, if the dangerous pressure range is lowered, the movable pin 16 is lowered by the gas pressure, and the first pressure is mounted on the inner passage 13a by the low pressure spring 17. The sealing member 14a is moved, thereby compressing the low pressure spring 17 mounted on the bottom surface of the first sealing member 14a, thereby protruding the movable pin 16 out of the guide hole 26. Steps; The gas can is released, including the actuating pin 16 operating the release device (not shown) of the gas can 29 to release the gas can 29 from the regulator.

When the gas can 29 continuously reaches the gas can deformation threshold pressure due to ambient radiant heat or the like after the gas can 29 is disengaged, the high pressure spring 18 cannot lower the pressure inside the gas can 29 without falling. While operating the ignition switch 37 by the ignition trigger 40, the discharged gas is operated by the ignition device 36 to ignite and burn in the burner.

The ignition switch 37 by the ignition trigger 40 of the safety unit 35 is operated to burn the gas discharged automatically from the burner.

Figure 4d is a longitudinal sectional view showing a third embodiment of a portable gas stove according to the present invention,

This is a third embodiment of the safety unit 35 which is another embodiment.

The safety part 35 is

The upper portion is provided with a through-hole 11 through the gas flow path 10, the lower surface is fastened by a lower plate 15 having a guide hole 26, the inside having a stepped portion with a diameter larger than the upper end A housing 25 provided with an inner passage 13a;

An ignition trigger inserted into the housing 15 and provided with a sealing portion 16a for opening and closing the through hole 11 at an upper side thereof, and extending to a predetermined length at a lower side thereof so as to freely move up and down to the guide hole 26 ( 40, a low pressure spring 17 elastically supporting the ignition trigger 40, a slider 38 inserted into the housing 25 and slidably inserted up and down in the stepped portion, And a high pressure spring 18 inserted into the housing 25 so that the slider 38 is returned upward.

To describe in detail the operating principle of the third embodiment

The ignition trigger 40 mounted in the safety part 35 will be referred to as an ignition trigger in the gas explosion prevention step, and will be named differently as the movable pin 16 in the gas can escape step.

Referring to the operating principle of the gas can leave according to the third embodiment,

If the internal pressure of the gas can rises while the portable gas stove is in use, and the gas can dangerous pressure range, the movable pin 16, which is elastically supported by the low pressure spring 17, protrudes out of the guide hole 16. The gas can 29 is separated by operating the can separating device.

When the gas can 29 continuously reaches the gas can deformation threshold pressure due to ambient radiant heat or the like after the gas can 29 is disengaged, the high pressure spring 18 cannot lower the pressure inside the gas can 29 without falling. While operating the ignition switch 37 by the ignition trigger 40, the discharged gas is operated by the ignition device 36 to ignite and burn in the burner.

In the third embodiment, the high pressure spring (18) in the explosion prevention step including a relatively high gas pressure than the position where the movable pin (16) elastically supported by the low pressure spring (17) at the gas pressure of the gas can separation step lowers. The position where the ignition trigger 40, which is elastically supported by the lower position, is lowered so that the ignition switch 37 is operated by the ignition trigger 40.

In the automatic ignition device for preventing explosion of a portable gas stove by a switch contact according to the first embodiment to the third embodiment,

A step in which the ignition trigger 40 located in the safety part 35 descends and

The gas is discharged to the burner 28 through the mixing pipe 27 through the gas discharge pipe 20,

Operating the ignition switch 37 by the ignition trigger 40;

Generating an ignition flame on the ignition device 37 provided on one side of the burner by the operation of the ignition switch 37;

The gas discharged to the burner 28 by the gas discharge pipe 20 is burned by the ignition flame.

When the internal pressure of the gas can 29 reaches a deformation threshold pressure of 13 kg / cm 2 or more, the gas of the gas can 29 is expanded and expands first from the upper portion 30 of the gas can 29. The gas can 29 is mounted in the inlet.

The gas inside the gas can 29 is introduced again through the gas inlet, and since the gas pressure introduced therein is 13 kg / cm 2 or more, the high pressure spring 18 elastically mounted to the ignition trigger 40. This is to be compressed.

According to the first and second embodiments, the high pressure spring 18 is compressed to open the through-hole 11b, and the gas is discharged through the gas discharge pipe 20 to the burner 28 through the mixing pipe 27 to burn. The internal pressure of the gas can 29 is lowered to prevent explosion of the gas can 29 in advance.

According to the third embodiment, as the low pressure spring 17 and the high pressure spring 18 are compressed to open the through holes 11, the gas is discharged through the gas discharge pipe 20 to the burner 28 through the mixing pipe 27. Since the internal pressure of the gas can 29 is lowered by combustion, it is possible to prevent the explosion of the gas can 29 in advance.

As described above, the internal gas of the present invention is discharged through the burner through the mixing pipe when the internal gas is discharged to the outside, and is automatically burned to remove residual gas from the gas can, and furthermore, dangerous gas to other fire sources. Is to provide an advantage of preventing access in advance.

Claims (6)

In the safety device of a portable stove, A gas passage 10 formed inside the regulator 19 for gas discharge, A safety unit 35 connected to the gas passage 10, a mixing pipe 27 connected to one side of the safety unit 35, and a gas discharge pipe 20 for discharging the gas and the gas discharge pipe 20 connected to one side; Including a burner 28 to which the mixing pipe is connected, To include an ignition switch (37) for operating the ignition device 36 for generating an ignition spark provided on one side of the burner 28, while being spaced apart from the lower one side of the ignition trigger (40) located in the safety part (35). Portable ignition explosion-proof automatic ignition device by a switch contact, characterized in that made. The method of claim 1, The ignition trigger 40 has an inclined surface at a lower side at a predetermined angle, and the ignition switch 37 corresponding thereto is provided with a contact member 41 and a switch body 42 corresponding to the inclined surface of the ignition trigger 40. Portable ignition explosion-proof automatic ignition device by a switch contact, characterized in that consisting of. The method of claim 1, The ignition trigger 40 is made of a magnetic material, and the ignition switch 37 corresponding thereto selects any one of a vacuum switch or a micro switch that is configured to be operated by the magnetic material of the ignition trigger 40. Automatic ignition device for explosion prevention of portable gas stove by switch contact. The method of claim 1, The safety part 35 is The gas passage 10 and the through hole (11b) is provided on the upper side, the projection 33 is provided on the lower side of the through hole (11b), the gas pressure of the regulator 19 on one side of the side to the outside A second housing having a gas discharge pipe 20 connected to one side of the mixing pipe 27, a lower plate 15b for sealing the lower side of the safety part 35, and a gas passage groove 13c on an inner wall thereof. The second sealing member 14b and the second sealing member 14b, which are supported by the high pressure spring 18 to open the through hole 11b and correspond to the protrusion 33, are seated in the 25b. A seating adjusting unit 39 is provided, and a lower hemispherical groove is formed at the lower end of the seating adjusting unit 39, and a slider 38 is provided to be slidably up and down so as to be formed to correspond to the groove, and the Ignition trigger 40 is attached to the lower side of the slider 38, characterized in that Automatic ignition device for explosion-proof portable gas stove by switch contact. The method of claim 4, wherein The size of the hemispherical groove formed in the lower end of the seating adjustment portion 39 is formed to be larger than the size of the hemispherical irregularities formed on the top of the slider 38 installed to correspond to the portable gas stove by the switch contact, characterized in that Explosion-proof automatic ignition device. The method of claim 1, The safety part 35 is The upper portion is provided with a through-hole 11 through the gas flow path 10, the lower surface is fastened by a lower plate 15 having a guide hole 26, the inside having a stepped portion with a diameter larger than the upper end A housing 25 provided with an inner passage 13a; An ignition trigger inserted into the housing 15 and provided with a sealing portion 16a for opening and closing the through hole 11 at an upper side thereof, and extending to a predetermined length at a lower side thereof so as to freely move up and down to the guide hole 26 ( 40, a low pressure spring 17 elastically supporting the ignition trigger 40, a slider 38 inserted into the housing 25 and slidably inserted up and down in the stepped portion, And a high pressure spring (18) inserted into the housing (25) to return the slider (38) to the upper side.