JPH0129447Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a simple gas stove with a built-in gas cylinder.

Conventionally, as a simple gas stove with a built-in gas cylinder, there is one configured so that one gas cylinder is connected to one burner via a governor and a gas stove. With conventional devices configured in this way, it is of course impossible to simultaneously perform the same type of cooking or different types of cooking with a single unit.

Therefore, the inventor of the present invention has created an unknown system that combines two or more conventional gas stoves with built-in gas cylinders, so that two or more types of cooking can be done in parallel on one stove. A simple gas cylinder built-in type gas cylinder system in which each burner is installed at multiple locations in the stove case, and each gas tank, each governor, and each cassette type gas cylinder are installed in the stove case in the same number of systems as the burners, each connected to each burner in turn. Invented the stove. However, such a configuration requires the same number of components for each system from the gas cylinder to the burner as there are burners, which has the disadvantage of increasing the number of parts, increasing the overall size, and increasing cost.

Therefore, the inventor of the present invention has further proposed that a plurality of burners are connected to the secondary side of one governor via branch secondary passages, a gas cock is interposed in each branch passage part of the branch secondary passage, and one of the governors is We have devised another previously unknown simple gas stove with built-in gas cylinder, which connects one cassette type gas cylinder to the next side. In this configuration, since there is only one governor, the number of parts is small and the overall size can be made relatively small. However,
In this configuration, each burner can be used simultaneously to
For example, if you cook more than 2 seeds in parallel,
For example, if multiple burners are used in parallel, the primary pressure will drop within a short period of time, such as a few minutes, and the gas supply will be insufficient, making it impossible to obtain the amount of heat necessary for cooking. Another drawback is that different types of cooking cannot be performed in parallel.

In addition, in recent years, in order to prevent gas cylinder explosion accidents in gas stoves with built-in gas cylinders, safety devices have been introduced that stop the supply of gas from the gas cylinder to the burner when the internal pressure of the gas cylinder rises abnormally. It is required by law to establish one. In order to meet this requirement, a pressure-sensitive safety valve is interposed in the secondary passage connecting the governor and the burner, and the pressure-receiving chamber of the pressure-sensitive safety valve is
A method and a device have already been proposed in which the pressure-sensitive safety valve is connected to the next side and the secondary passage is shut off by operating the pressure-sensitive safety valve in response to the abnormal pressure rise when the primary pressure rises to a predetermined pressure or higher. (Tokuko Akira)
50-27429, Utility Model Publication No. 56-28429, etc.).
However, to the best of the inventor's knowledge, no simple gas stove with built-in gas cylinders in which burners are installed in multiple locations in the stove case has yet to be proposed, and even less one equipped with these pressure-sensitive safety valves has been proposed to date. Nothing has been proposed so far.

The present invention was devised against the background of these circumstances, and its purpose is to allow cooking of the same or different types of food in parallel, to meet the legal requirements for prevention of cylinder explosion accidents, and to improve overall efficiency. To provide a simple gas stove with a built-in gas cylinder that is relatively small and inexpensive.

In order to achieve these objectives, this invention
Burners are provided at multiple locations on the stove case, and within the stove case are a plurality of cylinder connection caps for connecting cassette type gas cylinders, a governor, and a secondary pressure gas chamber of the governor. and a branch secondary passage that communicates with each burner, and a collective passage portion of the branch secondary passage that shuts off in response to the primary pressure when the primary pressure of the governor increases to a predetermined pressure or more. one pressure-sensitive safety valve, and each gas outlet of each cylinder connection cap is commonly communicated with the primary side of the governor, and each gas outlet is commonly communicated with the pressure receiving chamber of the pressure-sensitive safety valve. It is characterized by:

Hereinafter, embodiments of the present invention will be described based on the drawings, taking a simple two-burner gas stove with a built-in gas cylinder as an example.

1 to 4 show an example of a simple two-burner gas stove with a built-in gas cylinder according to the present invention, with FIG. 1 being a perspective view and FIG. 2 being a schematic plan view.

This simple 2-burner gas stove with built-in gas cylinder 1
Each burner 3 is provided at two places on the left and right sides of the stove case 2, and inside the stove case 2, there are two cylinder connection caps 5 for connecting a cassette type gas cylinder 4, and one governor 6. , a branch secondary passage 7 that communicates and connects a secondary pressure gas chamber (not shown in FIGS. 1 and 2) of the governor 6 to each burner 3, and a primary side pressure of the governor 6 that is increased to a predetermined pressure or higher. Sometimes, in response to the primary side pressure, the branch secondary passage 7
A pressure-sensitive safety valve 9 is provided which shuts off the collective passage section 8 of the valve.

3 is a vertical cross-sectional view taken along the line - in FIG. 2, and FIG. 4 is a cross-sectional view of the stairs taken along the line - in FIG. 3. As shown in these figures, the governor 6
is a shallow cylindrical secondary pressure gas chamber 10 with one side open.
and a diaphragm 11 that airtightly covers the open surface of the diaphragm 11.
and a secondary pressure setting spring 12 that presses the diaphragm 11 toward the secondary pressure gas chamber 10 against the internal pressure of the secondary pressure gas chamber 10. Further, the valve case 13 of the pressure sensitive safety valve 9 is formed into a cylindrical shape integral with the bottom wall 14 of the secondary pressure gas chamber 10. Third
As shown in the figure, a small-diameter secondary passage 15 and a large-diameter secondary passage 16 are formed in the valve case 13 in series and coaxially with each other vertically.
A safety valve 17 that shuts off the secondary side passages 16 and 15 is inserted into the secondary side passage 16 so as to be movable up and down, and a valve surface 18 on which the safety valve 17 is moved toward and away from the secondary side passage 16 is formed into a tapered surface shape. Reference numeral 19 denotes a valve handle that is connected to the upper surface of the valve 17 and projects above the valve case 13 through the secondary passage 15, and 20 is a reset operation push button connected to the upper end of the valve handle 19. It is. The lower surface of the secondary passage 16 is airtightly covered by a pressure responsive member 21 made of a disc spring and a diaphragm 22. The secondary passage 16 is communicated with the secondary pressure gas chamber 10 , and the secondary passage 15 is connected to a third passage through each branch passage portion 23 of the branch secondary passage 7 .
It is communicated with each burner 3 (not shown in FIG. 4). Each branch passage portion 23 is interposed with a gas tank 24 that is operated independently of each other.
The pressure receiving chamber 25 of the pressure sensitive safety valve 9 is formed below the secondary passage 16 across the diaphragm 22. Crank-shaped communication passages 26, 27 extend from this pressure receiving chamber 25 along the cylinder bottom wall 14 of the governor 6.
is formed by branching left and right. This communication path 26,
One 26 of 27 is connected to the secondary pressure gas chamber 10 via a governor valve port 28 . Reference numeral 29 is a governor valve that opens and closes the governor valve port 28 using the secondary pressure setting spring 12 and the internal pressure of the secondary pressure gas chamber 10. Inside each cylinder connection cap 5, there is a connection port 30 into which a spout valve (not shown) of the gas cylinder 4 is hermetically fitted, a valve opening tool 31 that receives and opens the valve handle of the spout valve, and A gas receiving chamber 32 that receives gas from the gas cylinder 4 through a spout hole formed through the valve handle, and a gas outlet 33 that leads out gas from the gas receiving chamber 32 are coaxially arranged. Each cylinder connection cap 5 is one on each side of the governor 6,
The gas delivery port 33 is connected to each communication path 26, 27 in an airtight manner and solidified.

According to the gas cylinder built-in gas stove 1 configured in this way, gas supplied from one of the gas cylinders 4 is supplied through the cylinder connection cap 5, the communication passage 27, the pressure receiving chamber 25, and the communication passage 26. The gas supplied from the other side reaches the governor valve port 28 via the cylinder connection cap 5 and the communication passage 26,
After the pressure is regulated to a secondary pressure by the governor 6, it is introduced to each burner 3 through a branched secondary passage 7. Therefore,
Even if both burners 3 are used at the same time, the amount of gas supplied from each gas cylinder 4 is the same as in the case of a conventional gas stove with a built-in gas cylinder. Further, the thermal power of each burner 3 can be adjusted independently from each other by operating each gas stove 24. As a result, it is the same as using two gas stoves with one gas cylinder built-in.
This means that the same type of cooking or two types of cooking can be done in parallel with one machine. Further, since the pressure receiving chamber 25 of the pressure sensitive safety valve 9 is communicated with both gas cylinders 4 via each communication passage 26, 27 and each cylinder connection cap 5, the pressure sensitive safety valve 9 is connected to either gas cylinder 4. Even when the internal pressure rises abnormally, the pressure responsive member 21 bends upward due to the pressure in the pressure receiving chamber 25, raises the valve 17, closes the pressure sensitive safety valve 9, and closes the collective passage section 8 of the branch secondary passage 7. It is possible to cut off the gas supply to both burners 3 at the same time. As a result, heating of the gas cylinder 4 by the burner 3 is stopped, the internal pressure of the gas cylinder 4 cannot be increased any higher, and explosion of the gas cylinder is prevented. This valve-closed state is maintained by the elasticity of the pressure responsive member 21 until the push button 20 is pushed down and the pressure responsive member 21 is warped downward.

In the above embodiment, as shown in FIG. 5A, one of the two cylinder connection sockets 5 is connected to the communication path of the other cylinder connection socket 5 through the communication passage 27 and the pressure receiving chamber 25. 26 and communicates with the secondary gas chamber 10 from the governor valve port 28. However, as shown in FIG. A governor valve port 28 communicating with the secondary pressure gas chamber 10 and a communication passage 26a communicating with the pressure receiving chamber 25 may be led out from this confluence portion C.

Of course, the present invention is not limited to the above-described embodiments; for example, all known pressure-sensitive safety valves may be applied, and the governor and pressure-sensitive safety valve may be formed separately from each other. It's okay. Furthermore, it may be configured to also serve as a gas injection chamber or a gas delivery port of one of the cylinder connection caps in the pressure receiving chamber of the pressure sensitive safety valve. Note that the number of gas cylinders and cylinder connection caps may be the same as or greater than the number of burners. Further, the number of burners is not limited to two, and may be three or more, and any type of burner can be used. Furthermore, it is possible to add a pressure-sensitive cylinder detachment device that detaches the gas cylinder from the cylinder connection mouthpiece in response to an abnormal increase in pressure on the primary side of the governor.

As mentioned above, the present invention provides burners at multiple locations on the stove case, and connects the gas receiving chambers of the multiple cylinder connection ports to each cylinder connection port by commonly communicating with the primary side of the governor. All the cassette-type gas cylinders are connected to one governor, and the governor and each burner are connected in communication through a branched secondary passage, so even if each burner is used at the same time, the amount of gas supplied per gas cylinder is the same as before. It is the same as a gas stove with a built-in one-burner gas cylinder, and maintains the primary pressure above the specified pressure for a sufficient period of time for various types of cooking that are performed in parallel on each burner, and provides sufficient heat for each burner. can be supplied, and multiple burners can be used to cook the same or different types of food in parallel.

In addition, when the primary pressure of the governor increases to a predetermined pressure or higher, a pressure is provided that responds to the primary pressure and shuts off the collective passage portion of the branch secondary passage that communicates each burner with the governor. Equipped with a sensitive safety valve,
The gas receiving chamber of each cylinder connection cap is commonly communicated with the pressure receiving chamber of the pressure-sensitive safety valve, so if an abnormal increase in internal pressure occurs in at least one gas cylinder, the pressure-sensitive safety valve is activated and gas is supplied to all burners. supply is cut off all at once. As a result, the increase in the internal pressure of the cylinder due to heating of the cylinder by the burner is reliably stopped, and the legal requirements for explosion accidents due to abnormal increase in the internal pressure of the cylinder can be fully met.

Furthermore, since there is only one governor and one pressure-sensitive safety valve, the number of parts is relatively small, the overall size can be made small, and the cost can be reduced.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a perspective view, Figure 2 being a schematic plan view, and Figure 3 being a schematic plan view.
The figure is a longitudinal cross-sectional view taken along the line - in Fig. 2, Fig. 4 is a cross-sectional view of the stairs along the - line in Fig. 3, Fig. 5 A is a schematic plan view showing the gas passage, and B is another implementation of the gas passage. FIG. 3 is a schematic plan view showing an example. 2... Stove case, 3... Burner, 4... Gas cylinder, 5... Cylinder connection cap, 6... Governor, 7... Branch secondary passage, 8... Branch secondary passage 7
Collection passage part, 9...Pressure sensitive safety valve, 25...
...Pressure receiving chamber of the pressure sensitive safety valve 9, 32...Gas receiving chamber of the cylinder connection cap 5.

Claims (1)

[Scope of utility model registration request] Each burner 3 is provided at a plurality of locations on the stove case 2, and inside the stove case 2, there are a plurality of cylinder connection caps 5 for connecting a cassette type gas cylinder 4, one governor 6, and the governor. A branch secondary passage 7 that communicates and connects the secondary pressure gas chamber 10 of the governor 6 to each burner 3, and a branch secondary passage 7 that communicates with the secondary pressure gas chamber 10 of the governor 6 and the 1 for blocking the collective passage portion 8 of the branch secondary passage 7;
A pressure-sensitive safety valve 9 is provided, and each gas receiving chamber 32 of each cylinder connection cap 5 is commonly communicated with the primary side of the governor 6.
A simple gas stove with a built-in gas cylinder, characterized in that the pressure receiving chamber 25 of the pressure-sensitive safety valve 9 is commonly communicated with.