JPH08303787A - Gas stove - Google Patents

Abstract

PURPOSE: To provide a gas stove which eliminates possibility of physically burning by a flame when a pot or the like happens to be lifted. CONSTITUTION: This gas stove is provided with a vertical bar 3 supported in a central void 2 of a ring-shaped burner 1 free to move vertically, a means 5 to energize the vertical bar 3 upward so that the upper end thereof 3 contacts the undersurface of a container 4 to be heated, a means 6 to detect vertical movement of the vertical bar 3 and a flow rate throttle valve 8 interposed on a fuel supply pipe 7 of the burner 1 and the flow rate throttle valve 8 is controlled to reduce a fire force of the burner 1 when the upward movement of the vertical bar 3 is detected by a detection means 6. Thus, when the detection means 6 fails to detect the container 4 to be heated, the fire force of the gas stove is reduced automatically. This eliminates possibility of physically burning by a flame or of a sleeve catching fire, for example, when a pot happens to be lifted from the stove.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a gas stove.

[0002]

2. Description of the Related Art When temporarily raising a pan from a gas stove or replacing the pan on a gas stove during cooking, the flame may hit your hands or ignite your sleeves, causing burns. Especially when using a table hob which is placed in the center of the table for cooking, the place where the lifted pan is lowered is not always in front of the hob, so it is easy to get disappointed and lead to an accident. it is conceivable that.

[0003]

In view of the above-mentioned problems, the present invention can prevent an accident such as a burn by automatically reducing the fire of the gas stove when the pan is lifted from the gas stove. The purpose is to provide such a gas stove structure.

[0004]

As shown in FIG. 1, a gas stove according to the present invention has a central cavity 2 of a ring burner 1.
A vertical bar 3 supported in a vertically movable manner, and a vertical bar 3
Means 5 for urging the upper part of the vertical bar 3 upward so that the upper end of the vertical bar 3 contacts the lower surface of the heated container 4, and means 6 for detecting the vertical movement of the vertical bar 3.
And a flow throttle valve 8 installed in the fuel supply pipe 7 of the burner 1.
The flow rate throttle valve 8 is controlled so that the heating power of the burner 1 becomes small when the upward movement of the vertical bar 3 is detected by the detection means 6. As the detection means 6, as shown in FIG. 1, a limit switch 6 which is reversed by vertical movement of the vertical bar 3 is used.
The flow rate throttle valve 8 may be energized via the limit switch 6, and like the lever 12 in FIG.
A mechanical pressure transmission mechanism that directly links the vertical bar 3 and the flow throttle valve 8 may be used.

[0005]

In the above structure, the detecting means 6 is the vertical bar 3
While the heated container 4 is being detected via the flow rate throttle valve 8, the flow rate throttle valve 8 opens to allow the fuel of a normal flow rate to pass through. However, when the detection means 6 no longer detects the heated vessel 4, the flow rate throttle valve 8
Is controlled in the “closed” direction, and the burning power of the burner is automatically narrowed down. When the container 4 to be heated is placed on the gas stove again and the detection means 6 detects it, the heating power may be automatically returned to the original strength, and after confirming safety, It is also easy to configure so that it can be manually restored.

[0006]

1 shows an embodiment of the present invention, in which a vertical bar 3 is supported in a central space 2 of a ring-shaped burner 1 so as to be vertically movable, and the upper end of the vertical bar 3 is The coil spring 5 is biased upward by the coil spring 5 so as to abut the lower surface of the heated container 4, and the vertical movement of the vertical bar 3 is detected by the limit switch 6. The fuel supply pipe 7 of the burner 1 is provided with a flow rate throttle valve 8 including an electromagnetic valve 8a and a bypass pipe 8b. The electromagnetic valve 8a is supplied with power through the limit switch 6, and the limit switch 6 causes the vertical bar to flow. 3 is detected, the energizing circuit to the solenoid valve 8a is closed by the limit switch 6, so that the fuel supply to the burner is performed only by the bypass pipe 8b, and the heat power of the burner 1 becomes small. It is like this. Reference numeral 9 is a power source, and when the burner is not used, the switch 11 is turned on only when the gas cock 10 is operated to be "opened" so that the solenoid valve 8a is de-energized.

FIG. 2 shows another embodiment of the present invention, in which a rotary blade 8d made of a magnetic material is provided in a case 8c having gas pipe connection ports at both ends as a flow restrictor 8 and one end thereof is provided. A permanent magnet 8e is attached to the other end of the lever 12 that rotates by engaging with the vertical bar 3, and the permanent magnet 8e is brought close to the outer surface of the case 8c to rotate the rotating blade 8.
By sucking d, the flow rate of the fuel is narrowed down.

[0009]

As described above, according to the present invention, while the container-to-be-heated detecting means 5 is detecting the container to be heated 4, the flow rate throttle valve 8 is opened to allow a normal flow rate of fuel to pass. ,
When the detection means 6 no longer detects the heated container 4, the flow rate throttle valve 8 is controlled in the "closed" direction, and the heating power of the gas stove is automatically throttled. Therefore, the pot is lifted from the stove. There is an advantage that it is possible to prevent accidents such as burns due to flames and burning of sleeve sleeves.

[Brief description of drawings]

FIG. 1 is a schematic system diagram of an embodiment of the present invention.

FIG. 2 is a schematic system diagram of another embodiment of the present invention.

[Explanation of symbols]

 1 burner 2 empty space 3 vertical bar 4 heated container 5 biasing means or spring 6 detection means 7 fuel supply pipe 8 flow metering valve 8a solenoid valve 8b bypass pipe 8c case 8d rotating blade 8e permanent magnet 9 power supply 10 gas cock 11 switch 12 levers

Claims (1)

[Claims] 1. A vertical bar vertically movably supported in a central space of a ring-shaped burner, a means for urging the vertical bar upward so that an upper end of the vertical bar comes into contact with a lower surface of a heated container, and a vertical bar of the vertical bar. A means for detecting vertical movement and a flow rate throttle valve interposed in the fuel supply pipe of the burner are provided, and the flow rate is set so that the burner's thermal power becomes small when the vertical movement of the vertical bar is detected by the detection means. A gas stove provided with means for controlling a throttle valve.