JPH0129448Y2 - - 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 developed an unknown method 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. Each burner is installed in multiple locations in the stove case, and each gas tank, each governor, and each cassette type gas cylinder are connected to each burner in order in the stove case, and the same number of systems as the burners are installed. He devised the ro.
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. Alternatively, there is a drawback that different types of cooking cannot be done 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 demand, when the pressure on the primary side of the governor increases to a predetermined pressure or higher,
It has already been proposed to provide a pressure-sensitive cylinder detachment device that detaches the gas cylinder from the cylinder connection mouth in response to the abnormal pressure increase. However, to the best of the present inventor's knowledge, there has not even been a proposal for a simple gas stove with a built-in gas cylinder in which burners are arranged in multiple locations in the stove case, and even less a gas stove equipped with such a pressure-sensitive cylinder release device. Nothing has been proposed to date.

This invention was devised against this background, and its purpose is to be able to cook two or more types of food in parallel, to meet the legal requirements for preventing cylinder explosions, and to be relatively economical overall. To provide a small and inexpensive gas stove with a built-in gas cylinder.

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. a branch secondary passage that communicates with each burner; and a pressure sensitive sensor that detaches the gas cylinder from each cylinder connection cap in response to the primary pressure of the governor when the pressure on the primary side of the governor increases to a predetermined pressure or higher. The gas delivery path of each cylinder connection cap is commonly communicated with the primary side of the governor, and is also commonly communicated with the pressure receiving chamber of the pressure-sensitive cylinder detachment device.

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 5 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 27 shown in FIG. 4 of the governor 6 to each burner 3; One pressure-sensitive cylinder detachment device 8 is provided for detaching the gas cylinder 4 from each cylinder connection cap 5 in response to the next side pressure.

3 is a plan view of the main part, FIG. 4 is a cross-sectional front view taken along the line - in FIG. 3, and FIG. 5 is a cross-sectional view taken along the line - in FIG. 4. As shown in these figures, one side of the cylinder connection cap 5 is connected to the governor 6.
The other cylinder connection cap 5 is hermetically fitted into a recessed hole 9 formed on the left side of the governor 6, and the other cylinder connection cap 5 is hermetically fitted into a recessed hole 12 formed on the right end surface of a connecting frame 10 fixed to the right side of the governor 6. . Inside each of the cylinder connection caps 5, a connection port 13 into which a spout valve (not shown) of the gas cylinder 4 is hermetically fitted, and a valve opening tool 15 that receives and opens the valve stem 14 of the spout valve. , and a gas receiving chamber 16 that receives gas from the gas cylinder 4 through a spout hole formed through the valve stem 14 are provided coaxially. The pressure sensitive cylinder release device 8 is configured to release the cylinder from the set position when the internal pressure of the pressure receiving chamber 18 formed between the governor case 17 and the left cylinder connection cap 5 exceeds a predetermined safe pressure. Pressure-sensitive operating member 1 made of a disc spring that deforms into position
9, a cam 21 which is displaced from a set phase to a set release phase via a push rod 20 by the pressure-sensitive deformation of the pressure-sensitive operating member 19, a rotary plate 22 interlockingly connected to the cam 21, and a rotary plate 22.
The cylinder holder 23 is slidably displaced from the cylinder set position to the cylinder removal position in reversibly interlocked with the movement of the cylinder from the set phase to the cylinder removal phase through the set release phase, and the cylinder holder 23 is moved from the cylinder setting position to the cylinder removal position described later. It consists of a cylinder release spring 24 that urges toward.

The pressure receiving chamber 18 is connected to the gas receiving chambers 16 of both cylinder connection caps 5 through communication holes 25 and 26. The communication hole 25 communicates with the pressure receiving chamber 18, a communication hole 26, and a governor valve hole 28 which communicates with the secondary pressure gas chamber 27 of the governor 6 via the pressure receiving chamber 18 and the communication hole 25a.

29 is a governor valve that opens and closes the governor valve hole 28; 30 is a secondary pressure setting spring; 31 is a diaphragm that is deformed by the internal pressure and atmospheric pressure of the secondary pressure gas chamber 27 and the secondary pressure setting spring 30; 32; is a transmission device that interlocks and connects the diaphragm 31 and the governor valve 29.

The right end wall of the pressure receiving chamber 18 is constituted by a movable wall 33 made of another diaphragm. The pressure-sensitive actuating member 19 is supported by a support portion 34 which is superimposed on the right side surface of the movable wall 33 and supports the push rod 20 so as to be slidable in the left-right direction. The push rod 20 is pressed against the pressure sensitive operating member 19 by a floating prevention spring 35 built into the support portion 34. When the internal pressure of the pressure receiving chamber 18 rises above a predetermined safe pressure, the pressure sensitive actuating member 19
The push rod 20 is deformed from the set position where it warps convexly inside the pressure receiving chamber 18 to the set release position where it warps convexly outside the pressure receiving chamber 18 due to the internal pressure of the pressure receiving chamber 18, and advances the push rod 20 to the right. By having the right end of the push rod 20 received by a cam 21 that rotates about the vertical axis, the cam 21 moves from the set phase to the set release phase in conjunction with the displacement of the pressure sensitive actuating member 19 from the set phase to the cylinder set release phase. is configured to be displaced.

A rotating shaft 36 connected to the lower end of the cam 21 projects below the support portion 34, and the rotating plate 22 is interlocked with the projecting portion.

As shown in FIG. 3, the rotary plate 22 has a pair of arcuate plates whose distance from the center of rotation increases continuously as the rotational phase changes from the set phase to the unset phase to the cylinder removal phase. Grooves 37 are transparently provided at symmetrical positions with respect to the center of rotation.

The cylinder holder 23 has a top edge 39 and a bottom edge (reference numeral 4 in FIG.
0), and the gas cylinder 4 supported by the cylinder holder 23 is inserted into the corresponding cylinder connection mouthpiece 5 at the cylinder set position (Fig. 4 1). dotted chain line) and its cylinder connection cap 5
It is supported by the stove case 2 so as to be movable back and forth in the left-right direction across the cylinder detachment position (two-dot chain line in FIG. 4) from which the cylinder is detached. The displacement of the cylinder holder 23 from the cylinder set position to the cylinder removal position is achieved by inserting each connecting bolt 41 fixed to each cylinder holder 23 into each arcuate groove 37 of the rotary plate 22 so as to be able to move along each arcuate groove 37. As a result, it is reversibly linked to the displacement of the rotary plate 22 from the cylinder set phase to the cylinder detached phase. That is, on the one hand, an engagement recess 42 for positioning the connecting bolt 41 is formed at the end closest to the rotation center of the arcuate groove 37, and the connecting bolt 41 is held in place when the rotating plate 22 is in the set phase due to an abnormal increase in pressure in the pressure receiving chamber 18. When the cylinder is moved from the set phase to the set release phase, it is disengaged from the engagement recess 42 and the rotary plate 22 is configured to freely rotate in the direction of the cylinder disengagement phase opposite to the set phase. The connecting bolt 41 is moved to the cylinder detachment phase farthest from the center of rotation of the rotating plate 22 in conjunction with the cylinder holder 23 being moved to the cylinder detachment position. Moreover, on the other hand, a lever 43 is provided in a row that projects from the rotary plate 22 to the front side of the stove case 2,
When the rotary plate 22 is manually rotated from the cylinder removal phase to the set phase by this lever 43, the cylinder holder 23 is moved from the cylinder removal position to the cylinder set position in conjunction with the rotation plate 22.

Note that the support portion 34 is configured to also serve as a valve case for the safety valve 44.

According to the gas stove with a built-in gas cylinder 1 configured in this manner, the gas supplied from the gas cylinder 4 on the left side is supplied via the cylinder connection cap 5, the communication hole 25, the pressure receiving chamber 18, and the communication hole 25a. The gas supplied from the other side reaches the governor valve hole 28 via the cylinder connection cap 5 and the communication hole 26, and after the secondary pressure is regulated by the governor 6, it is introduced to each burner 3 through the branch secondary passage 7. It will be destroyed.

Further, the thermal power of each burner 3 can be adjusted independently from each other by operating each gas stove 49.
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. As a result, by using one simple gas stove 1 with a built-in gas cylinder, the same type of cooking or different kinds of cooking can be performed in parallel in the same way as using two gas stoves with a built-in gas cylinder.

Furthermore, since the pressure receiving chamber 18 of the pressure-sensitive cylinder detachment device 8 will be communicated with both gas cylinders 4 via the communication holes 25 and 26 and the cylinder connection caps 5, the pressure-sensitive cylinder detachment device 8 will Even when the internal pressure of the gas cylinder 4 is abnormally increased, the pressure-sensitive actuating member 19 is deformed to the set release position, and both cylinder holders 23 are displaced to the cylinder release position by the cylinder release spring 24. By this displacement of the cylinder holder 23 to the cylinder removal position, the gas cylinder 4 is removed from the cylinder connection mouthpiece 5, and the supply of gas to each burner 3 is stopped.
The rise in the internal pressure of the gas cylinder due to heating of the cylinder 4 by the burner 3 is stopped, and an explosion accident of the gas cylinder can be prevented.

The cylinder detached state is maintained until the lever 43 is operated to return the cylinder holder 23 and rotary plate 22 to the set position, and the pressure-sensitive actuating member 1
9 and push rod 20 are until then held in the unset position by the resiliency of pressure sensitive actuating member 19. Along with this return, the cam 21 interlocked with the rotating plate 22 pushes the pressure-sensitive actuating member 19 back from the set release position to the set position via the push rod 20.

The present invention is, of course, not limited to the above-mentioned embodiment. The rotary plate may be interlocked and connected to the pressure-sensitive actuating member via a transmission member such as a link plate or a rod.
In addition, the above-mentioned pressure-sensitive actuating member is interlocked and connected to a cylinder holding tool that presses the bottom edge of the gas cylinder connected to the cylinder connecting fitting toward the cylinder connecting fitting, and the cylinder holding device is activated when the internal pressure of the cylinder increases abnormally. It may be configured such that the gas cylinder is released and the gas cylinder is separated from the cylinder connection cap using a spring. Of course, the number of burners may be 3 or more,
The number of gas cylinder connection caps equal to or greater than the number of burners will be provided. Additionally, the safety valve 44 described above may be omitted.

In the above embodiment, the large diameter passage 45 and the small diameter passage 46 are arranged in series on the left and right around the push rod 20 in the support portion 34, and the push rod 2
A valve surface 47 is provided around the push rod 20 within the passage 45 to shut off the passages 45 and 46, and when the internal pressure of the pressure receiving chamber 18 rises abnormally, the governor 6 is Since the collective passage section 7a of the branch passage 7 connecting the secondary pressure gas chamber 27 and each burner 3 is configured to be shut off by a safety valve 44 provided therein, the internal pressure of any one of the gas cylinders 4 is abnormally increased. In some cases, residual gas can be prevented from flowing out from the secondary pressure gas chamber 27 of the governor 6, resulting in a higher degree of safety.

As mentioned above, the present invention provides burners at multiple locations on the stove case, and connects them to each cylinder connection socket by commonly communicating the gas outlet ports of the cylinder connection sockets to 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, a pressure-sensitive cylinder detachment device is provided that detaches each gas cylinder from the cylinder connection cap in response to the primary pressure when the primary pressure of the governor increases to a predetermined pressure or higher. Since the receiving chamber is commonly communicated with the pressure receiving chamber of the pressure-sensitive safety valve, if an abnormal increase in internal pressure occurs in at least one gas cylinder, the pressure-sensitive safety valve is activated and all the gas cylinders are separated from the cylinder connection cap. Gas supply to all burners is cut off 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 the pressure-sensitive cylinder removal device includes only one governor, such as the pressure-receiving chamber and the pressure-sensitive actuating member, excluding the cylinder holder, the number of parts is relatively small, and the entire system can be made compact and inexpensive.

[Brief explanation of the drawing]

Figures 1 to 5 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.
4 is a cross-sectional view taken along the - line in FIG. 3, and FIG. 5 is a cross-sectional view taken along the - line in FIG. 4. 2... Stove case, 3... Burner, 4... Gas cylinder, 5... Cylinder connection cap, 6... Governor, 7... Branch secondary passage, 8... Pressure sensitive cylinder release device, 16... Cylinder Gas receiving chamber of the connection cap 5, 18...pressure receiving chamber of the pressure sensitive cylinder removal device 8.

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 connects the secondary pressure gas chamber 27 of the governor 6 to each burner 3, and when the primary pressure of the governor 6 rises to a predetermined pressure or higher, the A pressure-sensitive cylinder detachment device 8 for detaching each gas cylinder 4 from each cylinder connection cap 5 is provided, and each gas receiving chamber 16 of each cylinder connection cap 5 is commonly communicated with the primary side of the governor 6, and each gas A simple gas stove with a built-in gas cylinder, characterized in that a receiving chamber 16 is commonly communicated with a pressure receiving chamber 18 of the pressure-sensitive cylinder removal device 8.