JPH0135252B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas valve in which ignition and extinguishing operations are performed by the pull-push operation of an operation button, and firepower adjustment is performed by rotating a knob.

Traditionally, push-and-turn operation knobs were often used for gas appliances, etc., and when igniting, it was necessary to rotate the knob to the fully open position and then return it to the closed position to adjust the gas amount. . Therefore, if the pot is small, the flame will come out from around the pot when it is lit, wasting heat, and if you set it to simmer and turn the knob rapidly toward simmer, it will cause the flame to simmer. This caused the inconvenience of extinguishing the fire beyond its location.

The present invention has been made in view of the above points, and the ignition operation is performed by pulling the operation button, the extinguishing operation is performed by the push operation of the operation button, and the fire power adjustment is performed by rotating a knob. When the cooking knob is turned to the maximum left direction, the flame is simmering.
The firepower can be set to maximum by turning the firepower adjustment knob to the maximum right direction.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

1 to 3 are cross-sectional configuration diagrams of a gas valve showing an embodiment of the present invention, and each shows a "closed"
The “ignition” and “opening” states are shown. FIG. 4 is a sectional view of the main part taken along line P-P' in FIG. 1.

In the figure, 1 is a valve body having a gas supply passage A, a main gas passage B, and a pilot gas passage C. A piezoelectric device or the like is mounted on a switch mounting plate 2 fixed at the tip with screws (not shown). A micro switch 3 that operates an ignition section (not shown) is fixed. Reference numeral 4 denotes a spindle installed in the center of the valve body 1, and a switch pusher 5 is formed at the tip on the side of the micro switch 3, and an operation button 6 for igniting and extinguishing is provided at the front. is attached. Reference numeral 7 denotes a firepower adjustment knob formed coaxially with the operation button 6, and is screwed into the front portion of the valve body 8, which is disposed approximately on the outer periphery of the spindle 4. 9 is an O-ring held by the switch mounting plate 2, 10 is an O-ring installed in the groove of the valve body 1, 11 is an E-ring secured to the valve body 8, 12 is an opening that communicates the gas supply passage A with the internal gas passage 13 of the valve body 8. The spindle 4 passes through the center of the internal gas passage 13, and the upper part has a tapered inner wall. is formed. And O is attached to the spindle 4.
The ring 14 blocks communication between the internal gas passage 13 and the pilot gas passage C. Reference numeral 15 denotes a ring-shaped O-ring fitting fixed to the inner wall surface of the internal gas passage 13. A spring 16 is installed between them, and is biased so as to shut off the pilot gas passage C. Reference numeral 17 denotes an O-ring attached to the O-ring mounting fitting 15. Reference numerals 18 and 19 denote an auxiliary control valve and a control valve which are pressed against the inner wall of the valve body 1 by a spring 20, and the control valve 19 is mounted so as to rotate simultaneously with the valve body 8. Reference numeral 21 denotes a circular opening formed in the auxiliary control valve 18, and in the embodiment shown in FIG. 4, three types of gas can be used.
Three openings are provided at 120 degree intervals. 22,2
3 and 24 are gas supply ports formed in the control valve 19, and when the control valve 19 rotates,
The amount of gas is adjusted by adjusting the cross-sectional area communicating with the opening 21. Reference numeral 25 denotes a fully closed valve fitted to the upper part of the flange 8' of the valve body 8, and as shown in FIG. I'm starting to do that. 27 is the above valve body 1
27' is an O-ring. Reference numeral 29 denotes a ball pushing spring which is housed in a plurality of recesses formed in the lid member 23, and the ball 30 at the tip presses against the outer circumferential wall of the valve body 8 to press and fix the valve body 8. and the above spring 16
and 26. 31
is a ball holder attached to the lid 23, and 32 is a stopper fitting fitted to the valve body 8, and the valve body 8 is held by the protrusion (hit) 31' of the ball holder 31. The rotation angle is regulated. Reference numeral 33 denotes a stopper fixing fitting that fixes the stopper fitting 32 so that it does not come off the valve body 8. 34 has the operation button 6 in front (front)
This is a cover that restricts the moving distance of the stopper fitting 32 when it is pulled to the side.

Next, the operation of the gas valve having the above configuration will be explained.

First, in FIG. 1, gas flows from the gas supply passage A into the valve body 1 and into the valve body 8 through the opening 12; There is no gap with the inside of the valve body 8, and the gas supply passage A and the pilot gas passage C are completely cut off. At the same time, the spring 2
6, the main gas passage B and the gas supply passage A are completely cut off.

Next, when the operating button 6 is pulled toward this side (front), the spindle 4 first moves against the spring 16, creating a gap between the spindle 4 and the inside of the valve body 8, as shown in FIG. , the above gas supply passage A
The gas flowing from the opening 12 and the internal gas passage 1
3 is supplied to gas passage C. At the same time, the switch pusher 5 of the spindle 4 presses the micro switch 3.
By pressing the contact operating piece 3', an ignition section (not shown) such as a piezoelectric device starts operating, and the pilot gas is ignited.

Then, when the operation button 6 is further pulled toward the front, the operation button 6 comes into contact with the firepower adjustment knob 7, and the firepower adjustment knob 7 is also pulled in the same direction. Accordingly, the valve body 8 screwed into the firepower adjustment knob 7 also moves toward the front, resulting in the state shown in FIG. 2. Then, as the fully closed valve 21 moves away from the control valve 13, the gas being supplied to the gas passage A is transferred to the gas supply ports 22, 23, and 23 of the control valve 19, respectively.
24 and flows into the main gas passage B through the opening 21, the pilot gas instantly ignites and transitions to steady combustion.

Furthermore, when the pulling operation of the operation button 6 is released and the hand is released, the firepower adjustment knob 7 will be activated as shown in FIG. The fully closed valve 25 is maintained in a detached state from the control valve 19, and the spindle 4 is moved by the spring 1.
Due to the urging force of 6, the O-ring 14 returns to its original position.
, the pilot gas passage C and the internal gas passage 13 of the valve body 8 are shut off, gas is not supplied to the pilot gas passage C, and gas is supplied only to the main gas passage B, and at the same time, the micro switch 3 is switched to the first
Turn it over as shown in the figure to stop the operation of the ignition part, such as a piezoelectric device. In FIG. 3, the control valve 1 is set so that, for example, when the firepower adjustment knob 7 is turned all the way to the left, it will be in a low fire state, and when it is turned all the way to the right, it will be in the maximum firepower state.
The area of communication between the gas supply ports 22, 23 and 24 of 9 and the opening 21 of the auxiliary adjustment valve 18 may be adjusted in advance.

Next, when extinguishing a fire, when the operation button 6 is pushed against the urging force of the ball push spring 29 in FIG. 3, the O-ring 14 of the spindle 4 and the valve body 8 come into contact and the valve body 8 is pushed up Since the fully closed valve 25 is in close contact with the control valve 19, the gas supply passage B is cut off from the gas supply passage A, so that the fire can be instantly extinguished.

The gas supply ports 22, 23, and 24 are formed in shapes that can accommodate different types of gas, and when the firepower adjustment knob 7 is strongly pulled toward the front and rotated approximately 120 degrees, the control valve 19 also adjusts to approximately 120 degrees. Since the gas supply port can be switched from 22 to 23 by rotating 120 degrees, different gases can be ignited by pulling the operation button 6, and extinguished by pressing the button 6 and adjusting the firepower. The firepower can be easily adjusted by rotating the power knob 7.

As explained above, the gas valve of the present invention can be ignited by a pull action and extinguished by a push action, regardless of the position of the fire power adjustment knob, so that ignition can be done consciously and instantly, and extinguishment can be done extremely instantaneously. Become something.

In addition, by simply turning the fire power adjustment knob all the way to the left, it is possible to set the flame to the low flame state, and furthermore, it is possible to ignite and extinguish the fire in the low flame state or any flame power state, so it is possible to use the low fire state. This is particularly useful when the frequency of ignition and extinguishing operations is high.

[Brief explanation of drawings]

1 to 3 are cross-sectional configuration diagrams of a gas valve showing an embodiment of the present invention, and each shows a "closed"
4 shows the "ignition" and "opening" states, and FIG. 4 is a sectional view of the main part taken along the line AA in FIG.
is the gas valve body, 3 is the micro switch, 4 is the spindle, 6 is the operation button, 7 is the firepower adjustment knob, 8 is the valve body, A is the gas supply passage, B is the main gas passage, C is the pilot gas passage, 13 is the internal gas passage; 18 is a control auxiliary valve; 19 is a control valve;
25 is a fully closed valve.

Claims (1)

[Claims] 1. An ignition switch that is turned ON by the pull operation of the operation button, a gas supply control means that supplies and cuts off gas by opening and closing a fully closed valve by the pull and push operation of the operation button, and a knob for adjusting the firepower. A gas valve equipped with a heating power adjusting means that adjusts the heating power from a "slow fire state" to a "maximum fire power state" by adjusting the gas supply amount of the control valve by the rotational operation of the gas valve.