KR19990016654A - Portable gas stove safety device - Google Patents

Abstract

The present invention relates to a safety device for preventing the explosion of the gas container of the portable gas stove, the conventional safety device is installed so that the release device for leaving the gas container when the pressure rise of the gas container is interlocked with the detachable device, such a detachable device When there is a malfunction, the release device has a problem that does not block the gas supply to the burner.

Accordingly, the present invention divides the pressure pipe 20 into the bush 30 and the break chamber 32 and the pressure chamber 34 as shown in FIGS. 4 to 6, and the shut-off chamber 32 when the release device 15 is operated. ) Is to be airtight, and when the push rod 16 is lowered in the bush 30, the opening and closing rod 38 is moved to the pressure chamber 34 side in conjunction with the push rod 16, the head 39 of the opening and closing rod 38 The packing 44 is installed at the bottom of the push rod 16 so that the packing 44 is squeezed between the head 39 and the bush 30 so that gas can be supplied to the pressure chamber 34 through the inner diameter of the bush 30. While blocking the inflow, a double inclined surface 46 was formed at the tip of the push rod 16 to prevent the release device 15 and the opening and closing rod 38 from being arbitrarily returned. When the link 9 is reactivated, it is returned by the impact.

Therefore, in the present invention, even if the operation of the detachable device is defective to extinguish the burner to prevent explosion due to the pressure rise of the gas container, as a result it is possible to obtain the effect of improving the safety of the gas stove.

Description

Portable gas stove safety device

The present invention relates to a safety device for a portable gas stove which cuts off the supply of gas to prevent the explosion due to a rise in pressure of the gas container. Specifically, the present invention relates to a release device for leaving the gas container when the pressure rises in the gas container. It relates to a safety device for a portable gas stove having a double safety device to block the gas supply path to the burner.

1 is a perspective view showing a portable gas stove, which is composed of a burner 1, a gas regulator 2, a detachable device 3 of a gas container, and a case 4 to which these parts are fixed. .

Among these, the detachable device 3 is a device that engages or disengages the gas container 5 at the inlet position of the gas regulator 2 by a slide type. When the user presses the handle 6, the respective links interlocked thereto. It is supposed to work.

More specifically, as shown in FIG. 2, as shown in FIG. 2, the working link 9 is hinged to the partition 8 between the portion where the gas container 5 is seated and the burner 1, and one end of the working link 9 is It protrudes out of the case and is provided with a handle 6 so that the user can operate it.

On the other hand, the other end of the action link (9) is formed with a guide groove (10) for transforming the rotational movement of the action link (9) in a linear motion, one end of the slide link (11) is coupled.

Slide link 11 is a linear movement by the slide groove formed in the guide groove 10 and the partition wall 8 of the action link (9), the other end of the slide link 11 seated protruding toward the gas container (5) side The base 12 is formed so that the force of the action link 9 is transmitted to the gas container 5.

Accordingly, when the user presses the handle 6, the seating table 12 moves the gas container 5 to the inlet 19 of the regulator 2 while the gas container 5 is coupled thereto.

In addition, the actuating link 9 is provided with a compression spring 13 having the partition 8 as a supporting point. When the actuating link 9 is slightly lifted in the engaged state of the gas container 5, the compression spring 13 is provided. As the seat 12 is retracted with the slide link 11 by the restoring force of the gas container 5 is released.

On the other hand, the release lever 14 is provided in the partition 8 which is the lower end position of the action link 9, and this is interlocked with the release device 15 which is a safety device built in the gas regulator 2.

That is, the release device is provided with a push rod 16 that is lowered by the dangerous pressure of the gas container (5), the risk of explosion, the push rod 16 is lowered to press one end of the release lever 14 The other end of the release lever 14 slightly lifts the action link 9, and as described above, the slide link 11 is retracted by the restoring force of the compression spring, so that the gas container 5 is removed from the gas regulator 2. It is supposed to break away.

FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 showing an internal cross section of a gas regulator, and an adjustment lever 7 for adjusting the amount of gas sent to the burner 1 on one side of the regulator body 17 is illustrated. Is provided with a valve body 18 is installed, the inlet port 19 to which the gas container 5 is coupled is connected to the pressure tube (20).

On the other hand, the upper portion of the pressure tube 20 is formed with a chamber 21 for stabilizing the flow rate of gas, the pressure inlet pipe 20 and the chamber 21 is connected to the gas inlet 22, the chamber 21 is It is connected to the gas inlet pipe 23 on the control lever 7 side, and the gas introduced from the inlet port 19 enters the gas inlet pipe 23 through the pressure pipe 20 and the chamber 21, where the control lever 7 ), The gas delivery amount to the burner 1 side is adjusted.

Here, the release device 15 is installed on one side of the pressure tube 20, which is the push rod 16 and the spring seat 24 fixed to the outer periphery of the push rod 16 is exposed to the pressure tube 20 The spring seat 24 is adapted to receive the pressure of the gas, the air tightness is maintained by the packing 25 and the spring 27 for setting the gas pressure limit between the spring seat 24 and the fixture 26 is a fixture 26 is provided as a point.

Therefore, when the heat of the burner 1 is excessively transferred to the gas container 5 so that the pressure of the gas container 5 rises and reaches a dangerous pressure that may explode, the push rod 16 is lowered. The release lever 14 is operated, whereby the gas container 5 is separated from the gas regulator 2 so that the gas supply to the burner 1 is interrupted and the packing 25 when the push rod 16 descends. The airtight by this is released, and the gas of the pressure tube 20 is discharged | emitted outside the gas regulator 2.

As described above, the gas stove is provided with a slide type detachable device 3 for coupling or detaching the gas container 5 to the regulator 2, and the detachable device 3 increases the pressure of the gas container 5. It is intended to be interlocked with the release device 15, which is a safety device operated by.

However, there is a problem that more complete safety can not be ensured only by such a release device 15 when the detachable device 3 is malfunctioning.

For example, when foreign matter is inserted between the seating table 12 and the case, the seating table 12 has no retreat space for leaving the gas container 5.

In this state, even if the push rod 16 of the release device 15 is lowered to lift the action link 9, the slide link 11 and the seating table 12 formed at the end thereof are not retracted, so that the gas container ( 5) is to be coupled to the gas regulator (2).

In this case, the release device 15 will not be able to prevent the blast chamber, and the gas supply to the burner 1 is maintained, causing the gas container 5 to be exploded due to the heating of the gas container 5 and the increase in pressure. The release device 15 alone will not prevent this.

Accordingly, the present invention has been made in order to improve the above problems, and an object of the present invention is to provide a safety device for a portable gas stove which interlocks with a release device and blocks a gas supply path when the pressure of the gas container rises.

The present invention for achieving this object is to separate the pressure pipe into the bushing chamber and the pressure chamber to the bush and to prevent the gas flow into the burner side by the gas tight chamber when the release device is operated, interlocked when the push rod descends to the bush And an opening and closing rod which is moved to the pressure chamber side, and a packing is installed on the head of the opening and closing rod so that when the push rod descends, the packing is compressed between the head and the bush to block gas from flowing into the pressure chamber through the inner diameter of the bush. will be.

On the other hand, when the push rod descends, the opening / closing rod is moved to the pressure chamber side at the tip of the push rod, and at the same time it interferes with the opening / closing rod to form a double inclined surface that prevents the push rod from rising due to the spring elasticity. This prevents the return of the discretionary to maintain the confidentiality of the compartment, and this safety device is to be restored by the impact when the user activates the action link.

Therefore, in the present invention, even if the operation of the detachable device is defective to extinguish the burner to prevent explosion due to the pressure rise of the gas container, as a result it is possible to obtain the effect of improving the safety of the gas stove.

1 is a perspective view showing a portable gas stove,

Figure 2 (a) and (b) is a side view showing a detachable device of the gas container in conjunction with the release device is a conventional safety device,

3 is a cross-sectional view taken along line A-A of FIG. 2 showing a release device that is a conventional safety device;

Figure 4 is a cross-sectional view showing a safety device according to the present invention,

5 is an exploded perspective view of a safety device according to the present invention;

6A, 6B, and 3C are enlarged explanatory diagrams of part B of FIG. 4 showing an operating state of a double inclined surface according to the present invention.

* Explanation of symbols for main parts of the drawings

14-release lever, 16-push rod,

20-pressure tube, 30-bush,

32-blocking room, 34-pressure room,

36-euro, 38-opening and closing rod,

39-head, 40-spring seat,

42-bullet spring, 44-packing,

46-double slope, 48,48 '-guide surface,

50-smile.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

According to the present invention, the bush 30 is installed in the pressure tube 20 of the gas regulator 2 to divide the pressure tube 20 into the blocking chamber 32 and the pressure chamber 34, and the gas is provided on the pressure chamber 34 side. A flow path 36 connected to the inlet 22 is opened, and the bush 30 has an opening and closing rod 38 having an outer diameter smaller than the inner diameter of the bush 30 so as to be in contact with the push rod 16. In addition, the tip of the push rod 16 in contact with the opening and closing rod 38 moves the opening and closing rod 38 to the pressure chamber 34 when the push rod 16 descends, and the push rod 16 is a spring restoring force. The double inclined surface 46 is formed so as to prevent the rise of), while the head 39 of the opening / closing rod 38 has a surface of the bush 30 on the blocking chamber 32 side when the push rod 16 descends. It is a structure in which a packing 44 for hermetically sealing the blocking chamber 32 is installed.

Here, the opening and closing rod 38 is a spring seat 40 is installed inside the blocking chamber 32, the opening and closing rod 38 and the push rod 16 is in contact between the spring seat 40 and the head 39. It is characterized in that the elastic spring 42 is applied to the degree of elasticity.

On the other hand, the double inclined surface 46 is a contact position between the packing 44 and the bush 30 between the guide surface 48 for moving the opening and closing rod 38 toward the pressure chamber 34 and the guide surface 48 '. It is a safety device for a portable gas stove characterized in that the fine catching jaw 50 is formed so that the tip of the opening and closing rod 38 is finely interfered, and the safety device is returned to the operation link 9.

4 is a cross-sectional view showing a safety device of a gas stove according to the present invention, Figure 5 is an exploded perspective view of the present invention, the present invention works in conjunction with the conventional release device 15, the operation of the release device 15 It is provided with double safety means to cut off the gas supply line to the burner (1) side.

In other words, when the risk of explosion due to the pressure rise of the gas container 5 during the use of the gas stove, the release device 15 is activated to release the gas container 5 to the gas regulator 2 and in the pressure tube 20. The gas inflow to the chamber 21 was cut off, and the gas supply to the burner 1 side was prevented.

The present invention for this purpose is to divide the pressure tube 20 into the blocking chamber 32 and the pressure chamber 34 and to allow gas to flow into the chamber 21 from the pressure chamber 34, the operation of the release device 15 The blocking chamber 32 is hermetically sealed to prevent gas from flowing into the pressure chamber 34.

The division of the pressure tube 20 is a bush 30 is installed in the pressure tube 20 is divided into a blocking chamber 32 and a pressure chamber 34 around the center and the blocking chamber 32 through the inner diameter of the bush (30) And a pressure chamber 34 are connected, and a passage 36 connecting the pressure chamber 34 and the gas inlet 22 is established.

Therefore, when the gas is prevented from flowing through the inner diameter of the bush 30, the gas supply line is blocked to the burner 1 side through the chamber 21, and in the present invention, the gas supply line is blocked for blocking the gas supply line. The air tightness of the seal 32 is to be linked with the operation of the release device (15).

To this end, an opening and closing rod 38 interlocked with the push rod 16 of the release device 15 is installed in the bush 30, and a spring seat 40 is installed inside the blocking chamber 32, and a bullet shot therein. The spring 42 is installed between the head 39 of the opening and closing rod 38 so that the elasticity of the pressure chamber 34 side acts on the opening and closing rod 38 with the spring seat 40 as a point, thereby opening and closing the rod 38. ) And the push rod 16 of the release device 15 is in contact, and the rubber packing 44 is provided on one side of the head 39.

On the other hand, the tip of the push rod 16 that is in contact with the opening and closing rod 38 is formed to be inclined contact the tip of the push rod 16 formed inclined when the push rod 16 is lowered due to the pressure rise of the gas container (5). Opening and closing rod 38 is moved to the pressure chamber 34 by the bullet spring (42).

In addition, the packing 44 is also in contact with the bush 30 while being moved to the bush 30 side, and when the packing 44 is compressed between the head 39 and the bush 30, the airtightness of the blocking chamber 32 is maintained. Since the gas is prevented from entering the inner diameter side of the bush 30, the supply of gas to the burner 1 is blocked.

However, when the spring seat 24 together with the push rod 16 is lowered by the operation of the release device 15 as described, the gas in the pressure chamber 34 is discharged to the outside of the gas regulator 2 and the spring 27 The external force to compress) will be released and the push rod 16 will attempt to rise again with the restoring force of the spring 27.

Here, the rising of the push rod 16 means that the opening and closing rod 38 is returned again by the tip of the push rod 16 which is formed to be inclined, which releases the airtight of the blocking chamber 32 so that the pressure chamber 34 This means that the gas flows into the furnace.

Therefore, the present invention moves the opening / closing rod 38 to the pressure chamber 34 when the push rod 16 descends at the tip of the push rod 16 and at the same time interferes with the opening / closing rod 38 to prevent the spring 27 from being pushed. The double inclined surface 46 which prevents the rise of the push rod 16 by the restoring force is formed.

The double inclined surface 46 is formed of a micro latching jaw 50 at a position where the opening and closing rod 38 and the push rod 16 interfere when the packing 44 and the bush 30 are in contact with each other. In guide surface (48, 48 ') is to be separated, the lower side of the guide surface (48') of the upper is to fix the correct position of the opening and closing rod 38, such a small stiffening jaw (50) and the opening and closing rod ( As shown in FIG. 6, the push rod 16 does not return due to the restoring force of the spring 27 due to the narrow contact area of the microjaw 50, and thus the opening / closing rod 38 does not return. Therefore, the confidentiality of the blocking room 32 is maintained.

On the other hand, such a double inclined surface 46 corresponds to the restoring force of the spring 27, but the sudden opening and closing of the rod 38 from the micro latching jaw 50 during sudden force transfer due to the reactivation of the action link (9) As a result, the opening and closing rod 38 is returned.

That is, after the gas supply is cut off by the opening and closing rod 38, when the user detects the cause and mounts another gas container again, the operating force of the action link 9 is push rod 16 through the release lever 14. When it is transmitted to the lower end and it is transmitted to the micro latching jaw 50, the tip of the opening and closing rod 38 is separated from the micro latching jaw 50 due to the shock and vibration and the coupling tolerance between the bush 30 and the opening and closing rod 38. After that, the safety device of the present invention is released by the restoring force of the spring 27 and the guide surface 48.

Hereinafter, the overall operation of the present invention will be described.

Since the safety device of the present invention is released at the proper pressure of the gas container 5 during the use of the gas stove, the gas introduced from the gas inlet 19 passes through the shutoff chamber 32 and the opening / closing rod 38 and the bush 30. It passes into the chamber 21 while passing through the pressure chamber 34 and the flow path 36 through the inner diameter of the, and is supplied to the gas inlet pipe 23 again.

However, when the gas container 5 is heated due to overuse of the gas stove and the risk of explosion of the gas container 5 is reached, the gas pressure of the pressure chamber 34 is increased to the limit pressure that the spring 27 can cope with. When reaching and exceeding this pressure, the push rod 16 of the release device 15 is lowered to actuate the release lever 14 described.

When the push rod 16 is lowered, the opening / closing rod 38, which has been elastically contacted by the tandem spring 42 on the double inclined surface 46, is moved toward the pressure chamber 34, and the packing 44 is connected to the bush 30. In contact with the gas supply to the pressure chamber 34 is cut off.

When the packing 44 comes into contact with the bush 30, the pressure of the gas container 5 is added to the head 39 to further maintain the airtightness of the shutoff chamber 32, and is pushed by the lowered push rod 16. The gas in the seal 34 is released outside the gas regulator 2.

On the other hand, the lowered push rod 16 is slightly raised while the tip of the opening and closing rod 38 is contacted by the lower guide surface 48 'and the packing 44 is pressed, while maintaining the correct position, and the minute The tip of the engaging jaw 50 and the opening and closing rod 38 is interfered.

As a result, the rise of the push rod 16 and the return of the opening / closing rod 38 are prevented, so that the gas inflow into the pressure chamber 34 is continuously blocked, so that the gas container 5 is turned off due to a malfunction of the detachable device 3. Even if not separated from 2) the gas supply of the burner (1) is cut off to extinguish the burner (1).

In this case, the user is aware of the dangerous state of the gas container 5 by stopping the operation of the gas stove, and the release lever 14 described when the new gas container 5 is reloaded may impact the bottom of the push rod 16. When applied, the tip of the opening / closing rod 38 is separated from the micro latching jaw 50 and the safety device is returned by the restoring force of the spring 27 and the guide surface 48.

As described above, the present invention is interlocked with the release device when the pressure of the gas container rises to block the gas supply to the burner, so that the burner is extinguished even if the operation of the detachable device operated by the release device is poor. It is possible to prevent the explosion due to, and as a result improve the safety of the gas stove.

Claims (3)

A bush 30 is provided in the pressure tube 20 of the gas regulator 2 to divide the pressure tube 20 into the shutoff chamber 32 and the pressure chamber 34, and the gas inlet 22 on the pressure chamber 34 side. The flow path 36 is connected to the opening, and the opening and closing rod 38 having an outer diameter smaller than the inner diameter of the bush 30 is installed in the bush 30 to be in contact with the push rod 16. At the tip of the push rod 16 in contact with the opening / closing rod 38, when the push rod 16 descends, the opening / closing rod 38 is moved to the pressure chamber 34, and the push rod 16 is used as a restoring force of the spring 27. The double inclined surface 46 is formed so as to prevent the rise of), while the head 39 of the opening / closing rod 38 has a surface of the bush 30 on the blocking chamber 32 side when the push rod 16 descends. Safety device for a portable gas stove is installed in close proximity to the packing chamber (32) for hermetic sealing. The method of claim 1, wherein the opening and closing rod 38 has a spring seat 40 is installed inside the blocking chamber 32, the opening and closing rod 38 and the push rod 16 between the spring seat 40 and the head 39 Safety device for a portable gas stove, characterized in that the installed elastic spring (42) to apply the elasticity enough to contact. The double inclined surface 46 is a packing 44 and a bush 30 between the guide surface 48 for moving the opening and closing rod 38 toward the pressure chamber 34 and the guide surface 48 '. The safety catch of the portable gas stove, characterized in that the micro latching jaw 50 is formed so that the tip of the opening and closing rod 38 is finely interfered at the contact position of the). Device.