JP2687312B2 - Gas appliance container connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container connecting device for a gas appliance having a valve body for removably connecting two gas containers and having a combustion section for using gas discharged from each gas container. Is.

[0002]

2. Description of the Related Art Among gas appliances using a small gas container such as a cassette cylinder, a gas cylinder or a cartridge, a so-called 2-burner stove is sold for an outer door . This has a structure in which gas is supplied to two sets of burners from dedicated small gas containers. That is, since the gas container is independent for each burner, one gas container can be used only for one burner. If only one of the burners is used continuously, the gas container that is not in use is heated, and in the worst case, there is a risk of bursting.

Further, in the case of the so-called two-burner stove, since the cylindrical gas container is set vertically, the liquefied butane and the like are vaporized from the circular surface having the smallest area, and the latent heat of vaporization causes the combustion time to elapse. The amount of supplied gas is reduced and the thermal power is weakened , and this tendency becomes more remarkable when the temperature is low. In addition, it has been pointed out that the height of the gas appliance is increased by the length of the gas container, making it difficult to use on a table.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and its object is to provide a plurality of combustion sections (burners) even when there is only one gas container containing gas. Is to be used, and also to solve the problem of firepower and the difficulty of use in the conventional so-called two-burner stove.

[0005]

In order to solve the above-mentioned problems, the present invention provides first and second connection ports 12, 13 which are provided with a through hole portion 11 in a valve body 10 and which is connected at both ends thereof with respective gas containers. Then, the valve nozzle of the connected gas container is pushed in to open the valve, and when not connected, the first and second check valves 14 and 15 for keeping the inside of the through hole airtight to the outside are incorporated into the respective connection ports. the first spring 16 is stronger than internal spring of the valve nozzle, weaker than internal spring, gas to the first connection port 12
When the container is connected, it is compressed and the first spring 16 is pressed.
When two gas containers are connected together by incorporating a second spring 17, which can be closely fitted with a coil, between both check valves 14 and 15 so as to transmit a force to the second check valve 15. Gas can be discharged from both gas containers, and the gas container is 1
Spring weaker than valve nozzle when only books are connected 1
This means that only 7 is contracted so that gas is not discharged.

[0006]

The first spring 16 acts on the first check valve 14 that closes the first connection port 12, and the second connection port 13 also acts.
A second spring 17 acts on the second check valve 15 that closes the valve, and both springs 16 and 17 act on each other. The first spring 16 is set to be stronger than the second spring 17, and the second spring 17 allows the coil to come into close contact with each other by compression and transmits the force.

[0007] Connecting the gas container to the first connection port 12, the first spring 16 you the possible close contact coils <br/> of the second spring 17 to retract. In addition to this connection, when another gas container is connected to the second connection port 13, the second spring 17
Ri already coil adherable der, the internal spring of the valve nozzle of the gas container acts first spring 16, the two gas containers since to open the valve nozzle bought out the internal spring The gas can be discharged into the through hole 11.

Therefore, if the through hole portion 11 is communicated with the combustion portion through the gas passage, it is possible to use either one or a plurality of communicating combustion portions. The gas discharged from the two gas containers may be mixed in the through hole 11. That is, the gas discharged from either gas container is once distributed through the through hole 11 to the combustion section. Therefore, if the gas is contained in one of the two gas containers, the entire combustion section can be used.

A gas container is connected only to the second connection port 13 without connecting a gas container to the first connection port 12, or a gas container is connected only to the first connection port 12 to make a second connection. When the gas container is not connected to the port 13, the second spring 17 contracts because it is weaker than the built-in spring of the valve nozzle, but the first spring 16 does not act and the built-in spring does not contract so that the valve is opened. Does not arrive.

[0010]

1 and 2 show a gas appliance A to which the device according to the present invention is applied, which is a so-called two-burner stove having two sets of burners as combustion sections 23 ₁ and 23 _2. . This gas appliance A has two gas containers B ₁ and B _2.
Has a valve body 10 for detachably connecting the
0 is located in the middle between the left and right gas container accommodating chambers 25 and 26 prepared on the rear side in the gas appliance A.

The valve body 10 has a through hole 11 extending in the left-right direction so as to penetrate the valve body 10 in a straight line, and the openings at both ends thereof are connections for connecting the gas containers B ₁ and B _2. It has mouths 12 and 13. For convenience of explanation, the container connecting device in this embodiment is such that the right side of each drawing is the first side and the right side is the second side.
Since the first connection port is shown as 12, and the second connection port is shown as 13, the other connection lines are also in conformity with this. The first check valve 14 is provided in the first connection port 12, and the second check valve 1 is provided.
Check valves 15 are incorporated in the respective 3 (see FIG. 5).

Both check valves 14 and 15 are connected to the respective connection ports 12 and 1
The valve nozzle N of the gas container B connected to No. 3 (the gas container on the first side for distinction is B ₁ and the gas container on the second side is B ₂ ) is pushed against the built-in spring. Open the valve,
When not connected, the inside of the through hole portion 11 is kept airtight with respect to the outside.
Each of the check valves 14 and 15 has a tip 27 that contacts the valve nozzle N and pushes the valve nozzle N, an inner end 28 that contacts the spring, and a seal member 29 including an O-ring.
The seal member 29 is in contact with the step-like inner peripheral surface 31 of the tubular member 30 in which the seal is axially movable, and the airtightness is maintained. 3
Reference numeral 2 denotes a seal member provided on the member 30 ′ outside the tubular member 30, and 33 denotes a sliding seal member provided on the tubular member 30.

A first spring 16 that pushes the first check valve 14 outward and a second spring 17 that pushes the second check valve 15 outward.
Are incorporated into the through hole 11. The first spring 16 is set to be stronger than the built-in spring of the valve nozzle N, and the second spring 17 is set to be weaker than the same built-in spring. Further, the first spring 16 is long and the second spring 17 is short, and when the second spring 17 is compressed, when the first spring 16 moves, its pressing force is applied to the valve nozzle N on the second side. It has a form in which the coils are in close contact with each other in order to transmit and open the valve. In the unused state of FIG. 5, both springs 16 and 17 are in contact.

A linear rod 20 is provided in the first spring 16.
Is inserted to facilitate handling during assembly and prevent coil deformation. The rod 20 has a brim-shaped locking portion 19 at the end on the second spring side, and a washer-shaped intermediate member 18 is locked therein to receive the inner end of the first spring 16. . The second spring 1 is provided on the other surface of the intermediate member 18.
The inner ends of 7 touch. Therefore, the first and second two springs 16,
Reference numeral 17 denotes the first and second check valves 1 which are linearly arranged.
Each of the connection ports 12 and 13 is closed by pushing 4, 5 respectively outward.

A gas outlet 21 is formed in the through hole portion 11 in the valve body 10 which is closed by the check valves 14 and 15 so that the gas discharged therethrough flows into the gas passage 22. In the case of the embodiment, the gas outlet 21 is opened at two locations on the wall surface of the through hole 11. This is two sets of combustion parts 23 ₁ , 23 _2.
This is because the gas is supplied through separate gas passages 22 ₁ and 22 ₂ to each other, and since both gas outlets 21 and 21 communicate with each other, the pressure and other conditions may be considered to be the same. The position of the gas outlet 21 is inside the first and second check valves 14, 15 and the sealing portion of the tubular member 30.

A valve mechanism for opening / closing control and gas amount adjustment is provided in the gas passage 22 following the gas outlet 21. The illustrated valve mechanism has a needle valve 35 as shown in FIG. 4, and its tip advances and retracts to and from the downstream opening of the outlet 21 to perform opening / closing and opening adjustment. Reference numeral 36 is a needle valve seal, and 37 is a male thread portion on the outer circumference of the needle valve, which is screwed with a female thread portion 38 on the valve body 10 side to advance and retract the needle valve 35. 39 is a connector such as a split pin that connects the valve shaft of the needle valve 35 and the operating shaft 40, 41 is a ratchet fixed to the operating shaft 40, 42 is a movable ratchet that meshes with the ratchet, and the needle valve shaft end Is elastically pressed by a spring 44 contracted between the washer 43 and the washer 43. This ratchet mechanism is for driving the piezoelectric element 46 for ignition. Reference numerals 45 _{1 and} 45 ₂ denote operation knobs.

In use, a small cylindrical gas container B (B ₁ ,
B ₂ ), as shown in detail in FIGS.
It is held by a magnetic holding mechanism and also automatically pushed out by a pressure sensitive safety device when the pressure rises abnormally.
Although these mechanisms are not new, in brief description, 51 is a yoke and 52 is a magnet, and they are magnetically attracted to the flange F of the gas container B. The state in which the gas container B is set is shown in FIG. 6, and the upper half thereof is the second spring 17
A state in which the gas container B ₂ is connected only to the second connection port 13 on the side of is shown. In this case, even if the gas container B ₂ is connected by magnetic holding, the second spring 17 is only compressed and the valve nozzle is not pushed, so that the gas is not discharged, as described in the section of the action.

The lower half of FIG. 6 shows two gas containers B ₁ and B _2.
Shows a state in which both are set, and the gas container B on the right side is shown.
No. ₂ is the same as the upper half, but the second spring 17 is pushed by the first spring 16 so that the coil can be brought into close contact with the valve nozzle N of the right side container B _2. Since the gas is pushed in, the gas is discharged from both gas containers B ₁ and B ₂ into the through hole 11. In this state, pick 4
5 _1, 45 operate one of the ₂ open the needle valve,
The gas is ejected from the combustors 23 ₁ and 23 _{2 as a} combustible mixture, and can be ignited.

During combustion, evaporative gas according to the amount of consumed gas flows out from the gas container, but in order to prevent a temperature drop due to the latent heat of vaporization, the heat transfer plates 53 ₁ and 53 ₂ are connected to the combustion part 23 ₁ ,
It is provided between 23 ₂ and the gas containers B ₁ and B _2, and heats the gas containers B ₁ and B ₂ appropriately by the combustion heat.
Further, when the gas container is excessively heated for some reason and the pressure is abnormally increased, the area surrounded by the sliding seal member 33 of the tubular member 30 in which the check valves 14 and 15 are incorporated is the pressure receiving surface. Then, the gas container is automatically pushed out because it receives the above-mentioned abnormal pressure, overcomes the magnetic holding force, and slides outward of the connection port like a piston. This is the pressure sensing safety device described above.

In the gas appliance A incorporating this device, the gas container B can be set horizontally,
Since the height is not the same as that of the conventional two-burner stove and is the same as that of the tabletop stove, the footrest 54 may be extremely low. A Gotoku 55 is provided on the burning sections 23 ₁ and 23 ₂ , and is covered with an opening / closing lid 56. Further, the gas container housing chambers 25 and 26 are also covered with a housing chamber lid 57 so as to be openable and closable.

[0021]

Since the present invention is constructed and operates as described above, gas can be supplied to a plurality of combustion sections from either of the two gas containers, and the gas of the two gas containers can be supplied. Of these, if there is only one gas container containing gas, it is possible to supply gas to a plurality of combustion sections. For this reason, even if one of the gas containers being used runs out in the middle of the gas, or even if there is originally only one gas container containing the gas, a plurality of combustion sections can be used simultaneously. Also, since the gas container can be laid down, the evaporation area increases and the height of the gas appliance when used is low, so the performance of the so-called 2-burner stove and convenience of discontinuation can be significantly improved. You can

[Brief description of the drawings]

FIG. 1 is a plan view of a gas appliance incorporating a container connecting device according to the present invention.

FIG. 2 is a front view of the above.

FIG. 3 is a side view of the same.

FIG. 4 is a cross-sectional view of a needle valve mechanism unit combined with the device according to the present invention.

FIG. 5 is a cross-sectional view showing an embodiment of the container connecting device according to the present invention.

FIG. 6 is a cross-sectional view illustrating an operating state of the above.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Harada 2-6-8, Moiwadai, Taishiro-ku, Sendai-shi, Miyagi Prefecture, Sun Frontier Technology Co., Ltd. (56) References: 60-123503, JP U) Actual development Sho 60-123504 (JP, U)

Claims (4)

(57) [Claims] 1. A gas appliance having a valve main body to which two gas containers are detachably connected, and a combustion unit for using gas discharged from each gas container.
1 and 2 which connect each gas container to both ends of which are provided
The first and second check valves 14, 1 for keeping the inside of the through hole airtight to the outside when not connected by pushing the valve nozzle of the connected gas container to open the valve.
5, the first spring 16 stronger than the built-in spring of the valve nozzle and weaker than the built-in spring,
When the gas container is connected to the first connection port 12, it is compressed ,
The pressing force of the first spring 16 should be transmitted to the second check valve 15.
The second spring 17 capable of closely contacting the coil is provided with the double check valve 14,
By incorporating between 15, the gas can be discharged from both gas containers when the two gas containers are connected together, and when the gas container is connected to only one gas container, it is better than the built-in spring of the valve nozzle. A container connection device for a gas appliance, characterized in that only the weak spring 17 is configured to contract so as not to discharge gas. 2. The through hole portion 11 is provided so as to pass through the valve body 10 in a straight line, and both the first and second springs 16 and 1 are provided.
A rod 20 having an engaging portion 19 for interlocking with an intermediate member 18 interposed between 7 is inserted into the through hole portion 11 and the first spring 16 is fitted on the outer periphery of the rod 20. The container connection device for a gas appliance according to claim 1, which is attached to a container. 3. A gas passage 22 from a gas passage portion 11 discharged from a valve nozzle opened by connecting a gas container.
2. The container connecting device for a gas appliance according to claim 1, wherein the gas outlet 21 for allowing the gas to flow out is opened to the wall surface of the through hole 11. 4. The first spring 16 moves inward together with the first check valve 14 when the gas container on the first side is mounted, and the second spring 17 serves as a stopper after the second spring 17 comes into close contact by compression. The container connection device for a gas appliance according to claim 1, wherein the container connection device is configured to contract and open the valve nozzle via the first check valve 14.