KR950006655B1 - Combustion control device - Google Patents

Abstract

first flow control valve (10) disposed in a gas passage (6) communicating with the large-capacity burner (1a), a second flow control valve (11) disposed in a gas passage (7) communicating with the small-capacity burner (1b), an electromagnetic safety valve(12b) disposed in a gas passage (9) on an upstream side of both control valves and kept open when an electromotive force of a flame detector (21) is above a predetermined value, a flame detector (21) positioned to be heated by a flame of the small-capacity burner (1b), the flow control valves opened and closed by a single piece of common operating member (13) and held in throttling positions depending on the operating position, and the electromagnetic safety valve (12b) opened in interlocking with an ignition operation of an ignition push button (20).

Description

Combustion controller

1 is a plan view of a first embodiment of the present invention.

2 is a front view of FIG.

3 is a left side view of FIG.

4 is a cutaway front view taken along the line A-A of FIG.

5 is a perspective view of the locking mechanism.

6 is an enlarged view of the cam piece of the locking mechanism.

7 is a cut-off development view of the cam piece of the locking mechanism.

8 is a cut-away front view of the tube for assembling the electronic safety valve and the valve rod.

9 is a diagram illustrating the operation of the operator.

10 is a diagram illustrating the operation of the flow control valve.

11 is an operation explanatory diagram of a cam plate.

12 is a diagram showing the control characteristics of the fuel.

13 is a cutaway front view of a flow control valve of a second embodiment of the present invention;

14 is an explanatory view of the flow control valve of FIG.

FIG. 15 is a plan view of a portion of a third embodiment of the present invention; FIG.

16 is a cross-sectional view taken along line B-B in FIG.

FIG. 17 is a front view of a part of the operator of FIG. 15;

18 is a front view of the ENSO control device of FIG.

19 is a rear view of the combustion control device of FIG.

20 is a plan view of the combustion control device of FIG.

21 is a bottom view of the combustion control device of FIG.

22 is a right side view of the combustion control device of FIG.

FIG. 23 is a left side view of the combustion control device of FIG.

FIG. 24 is a partial perspective view of the valve body of FIG. 15. FIG.

25 is a diagram illustrating a conventional example.

* Explanation of symbols for main parts of the drawings

1: double burner 3: valve body

4: gas outlet 5: gas outlet

6: gas passage 7: gas passage

8 gas inlet 9: gas passage

10: first flow control valve 11: second flow control valve

12a: Electronic safety valve 13: Control member

20: ignition push button 21: flame detector

23: locking mechanism

The present invention relates to a combustion control device such as a gas table having a large-capacity burner and a small-capacity burner.

Conventionally, Japanese Patent Application Laid-Open No. 1-142319 discloses a combustion control device such as a gas table having a double burner in which a large-capacity burner and a small-capacity burner are combined.

This combustion control device forms a bypass passage c for bypassing the flow control valves a and b in the gas passages connected to both burners, as shown in the gas circuit diagram shown in FIG. The passage c is provided with ignition on / off valves d and e which open the valve only at the time of ignition.

Therefore, the bypass passage c must be formed separately from the flow control valves a and b formed in the gas passages connected to the two burners, so that the configuration of the gas passages is not only complicated, but also the bypass passages. In (c), there is a drawback that the configuration of the valve is complicated because the on / off valves d and e for opening the valve are required only at the time of ignition.

In addition, in the case where the difference in the amount of combustion of the strength and weakness is large, when the flow rate control valve b is set in the worst combustion state, the ignition operation is completed and the amount of combustion rapidly decreases, making it easy to be mistaken for extinguishing. have. It is therefore an object of the first invention to provide a combustion control apparatus without this drawback.

In addition, in the case of ignition by increasing the amount of gas in the large-capacity burner, not only unnecessary consumption of gas is generated at the time of ignition, but also excessive heat may be applied to food to cause cooking problems. It is therefore an object of the second invention to provide a combustion control apparatus without this drawback.

In order to achieve this object, the combustion control device according to claim 1 is a double burner by combining a large-capacity burner and a small-capacity burner, and forms a first flow control valve in a gas passage connected to the large-capacity burner. At the same time, the second flow control valve is formed in the gas passage connected to the small-capacity burner, and when the electromotive force of the flame detector is above the predetermined size, the electron is maintained in the valve open state. A safety valve is provided, the flame detector is installed at a position heated by a flame from a small-capacity burner, and opened and closed by one operation member having a common flow control valve. The electronic safety valve is linked to the ignition operation of the ignition push button. In the valve-opening state, when the second flow control valve is in the narrowed position by the operation member, the operation member is moved to the valve viewing side of the second flow control valve in accordance with the ignition operation of the ignition push button. Characterized in that the movement operation.

In the combustion control apparatus according to claim 2, in the combustion control apparatus according to claim 1, the operation member moves the valve opening side of the second flow control valve in accordance with the ignition operation of the ignition push button. Wherein the position is characterized in that the position of the first flow control valve to maintain the valve closed state.

In the combustion control apparatus according to claim 1 having the above structure, when the ignition push button is pressed from the start position to the end position, that is, when the ignition operation is performed with the push button, the second flow rate control valve. Is in the narrowed position, the operation member is moved to the valve opening side of the second flow control valve in accordance with the ignition operation of the push button. Therefore, during the ignition operation, the flow rate control valve of the small-capacity burner is always ignited while open. In addition, since a flame detector was installed in the small capacity burner, the flame detector was heated by the flame of the required burner at the time of ignition, and the electronic safety valve was kept in the valve open state when the electromotive force was above a predetermined size. By sparking, the flame detector quickly arrives at a predetermined output which keeps the electronic safety valve open. Since the operation member is moved, the flow control valve remains open even after the ignition operation is completed.

In the combustion control apparatus according to claim 2 having the above structure, the operation member is moved by pressing from the start position to the end position of the ignition push button when the second flow control valve is in the narrowed position. When the second flow control valve is operated to the valve opening side, that is, when the ignition in the adjustment position, the first flow control valve is kept in the valve closed state, the large-capacity burner does not operate.

A first embodiment of the present invention will be described with reference to FIGS.

In the drawing, 1 denotes a double burner in which a large-capacity burner 1a and a small-capacity burner 1b are combined, and 2 represents a combustion control device for controlling fuel supplied to each of the burners 1a and 1b. The valve body 3 constituting the combustion control device 2 includes gas passages 6 and 7 having gas outlets 4 and 5 connected to the large-capacity burner 1a and the small-capacity burner 1b. Gas passages 9 connected to an upstream side of the gas passages 6, 7 are provided, and each gas passages 6, 7, 9 are formed in the valve body 3 in parallel with each other. The gas passages 6 and 7 are provided with needle-type first and second flow control valves 10 and 11, and the gas passage 9 has a predetermined electromotive force of the armature as the flame detector 21. When larger than the size, the solenoid safety valve 12b which keeps a valve open, and the manual main valve 12a are provided. 8 denotes a gas inlet formed in the gas passage 9.

In addition, the first and second flow control valves 10 and 11 are controlled in conjunction with the operation member 13, and the operation member 13 includes an operator 14 and a cam plate 15 following it. The pins P1 and P2 protruding from the flow control valves 10 and 11 are engaged with the cam grooves 16 and 17 formed in the cam plate 15, and the first, By adjusting the positions of the valve holes 6a and 7a formed in the gas passages 6 and 7 of the second flow control valves 10 and 11, the fuel supplied to the burners 1a and 1b is controlled. It was.

To explain this, the first flow control valve 10 includes an adjusting portion 10b for adjusting the flow rate between the orifice 10a for setting the minimum adjustment amount and the valve hole 6a of the gas passage 6, It is also provided with a blocking portion (10c) to work together with the gas passage (6) connected to the large-capacity burner (1a) to block the fuel supply to the large-capacity burner (1a). Moreover, the 2nd flow control valve 11 is equipped with the adjustment part 11b which adjusts a flow volume between the orifice 11a which sets a minimum adjustment amount, and the valve hole 7a of the gas passage 7.

Reference numeral 18 denotes a resin guide cylinder formed on the valve body 3, and 20 denotes a resin ignition push button that is inserted through the guide cylinder 18 so as to slide.

The main valve 12a is formed on the valve rod 22 that is inserted into the gas passage 9 and passes through the end of the main valve 12a, and the end of the main valve 12a faces the push button 20. When the push button 20 is pressed from the start position A to the end position B, the main valve 12a is opened, and the solenoid safety valve 12b is also connected to the end of the valve rod 22. When the valve is pressed to enter the valve open state and the electromotive force of the thermocouple as the flame detector 12 is equal to or larger than a predetermined size, the valve open state is maintained.

23 presses the ignition push button 20 against the return spring 24 and pushes the starting position A from the end position B to the end position B, and then releases the press. When the ignition pushbutton 20 is engaged and the ignition pushbutton 20 is pushed again to the release position D, the latch at the intermediate position C is released and the shot is applied to the return spring 24 at the same time. And a locking mechanism for returning the push button 20 to the start position A. FIG. The locking mechanism 23 supports the cam piece 26 having the cam groove 25 formed in the push button 20, and the end portion thereof in the resin guide cylinder 18 so that the front end thereof can swing freely. It consists of a fastener (27) for engaging the cam groove 25 through the horizontal groove (18a) formed in the guide tube 18, the fastener (27) is a wire spring ( 19) the front end portion is in contact with the bottom surface of the cam groove 25.

And as shown in FIG. 6, the said cam groove 25 is "a" corresponding to each position (A, B, C) and the release position D of the start, end, and middle of the push button 20. As shown in FIG. The first to third grooves 25a, 25b, 25c of the end shape connecting the points b, b, c and d, and the d and d points When the push button 20 is pushed from the start position (A) to the end position (B) by forming a loop formed of the fourth groove portion 25d to be connected, the engaging member with respect to the cam piece 26 is formed. By the relative movement of (27), the engaging member 27 is moved from the "ga" point to the "b" point through the first groove 25a, and then the end position B by the return spring 24. By the returning operation at), the engaging member 27 is moved to the "multi" point corresponding to the intermediate position C via the second groove 25b and is caught at the intermediate position C. Subsequently, when the push button 20 is pushed again, the engaging member 27 is moved to the "la" point corresponding to the release position D through the third groove 25c, and then the push operation is performed. When released, the latch 27 returns to the start position A through the fourth groove 25d.

Then, when the ignition push button 20 is pressed against the return spring 24 and pushed from the start position A to the end position B, the main valve 12a is pressed near the intermediate position C to open the valve. At the same time as the open state, the solenoid safety valve 12b is pushed in the vicinity of the end position B to open the valve, and the switch S interposed in the activator circuit (not shown) is turned ON. When the pressing operation is released at the end position B and the intermediate position C is pressed, the electronic safety valve 12b is released but the main valve 12a is kept in the valve open state. When the latch at the intermediate position C is released again by the pressing operation and returns to the start position A, the maintenance of the valve open state of the main valve 12a is released. Thus, the main valve 12a is in a valve closed state.

In addition, the release position D was set closer to the start position A than the end position B, and the switch S was not operated when the operation was pressed again.

And the operator 14 which comprises the said operation member 13 is comprised by the lever which axially supported the one end on the upper surface of the valve body 3, and the said cam board 15 operated by this has the one end It is axially supported on the side surface of the valve body 3, and the protrusion piece 15a which protrudes from the said cam board 15 is fitted to the hole 14a formed in the operator 14, and it engages in the said operator 14, Therefore, it was made to swing about the axis 15e.

The cam grooves 16 and 17 formed therein first increase the fuel supplied to the small-capacity burner 1b by gradually opening the second flow control valve 11 in accordance with the swing of the cam plate 15. Subsequently, the first flow control valve 10 is opened to gradually increase the fuel supplied to the large-capacity burner 1a.

Moreover, the spring 15 is provided with the projection 28a which forms the narrow contact piece 15c in the middle of the through-hole 15b along the oscillation direction, and engages with the said contact piece 15c. The plate 28 was axially supported on the cam plate 15 and the common shaft 15e to form a knock mechanism with the spring plate 28 and the contact piece 15c. The cam plate 15 is connected to the second flow control valve 11 to start opening the second flow control valve 10, or the cam plate 15 is closed to close the second flow control valve 10, 2 In all cases when starting to close the flow control valve 11, it is possible to operate the switch from one side switching of the flow rate control valves 10 and 11 to the other side switching by giving resistance to the operation of the operator 14. To make him conscious.

Then, when the cam plate 15 constituting the operation member 13 is in the adjustment position of the second flow control valve 11, the push button 20 is pressed from the start position A to the end position B. By the operation, the second flow control valve 11 was operated to the valve viewing side.

Further, by the pressing operation, the valve opening degree of the first flow control valve 10 is not changed, and the valve closed state is maintained.

In the illustration, the receiving piece 15d is formed on the cam plate 15 so as to be placed on the moving trajectory of the protrusion 20a protruding from the push button 20, and the receiving piece 15d is formed on the protrusion piece 20a. When pressed by the cam plate 15, the cam plate 15 oscillated so that the second flow control valve 11 was operated to the valve opening side.

In addition, in order to attach the electromagnetic safety valve 12b to the gas passage 9, as shown in FIG. 8, the electronic safety valve 12b is attached while being fitted in a resin body 29 made of resin. The tubular body 29 has a small hole 29a for fitting the valve rod 22 to one end thereof, and the valve rod 22 is inserted by inserting a tip of the valve rod 22 through the small hole 29a. The front end of the valve rod is opposed to the solenoid safety valve 12b, and the engaging rod 22a is formed at the tip of the valve rod 22 so that the valve rod 22 does not come out of the small hole 29a. The spring bearing 22b formed in the valve rod 22 and the end of the tube body 29 were assembled so that the spring 31 could be assembled.

In addition, 29b represents the hole formed in the side surface of the said tubular body 29, and when attaching the said tubular body 29 to the gas passage 9, the said hole 29b overlaps the gas inlet 8, and gas will be made. It passed through the inside of the tubular body 29, and was supplied to the upstream side of the main valve 12a through the small hole 29e.

29c is a valve receiving of the electromagnetic safety valve 12b formed in the said tubular body 29, and 29d is an O-ring provided in the outer periphery of the said tubular body 29. As shown in FIG.

Next, the operation of the apparatus will be described.

When the operator 14 is positioned at the position shown in FIG. 9A, the cam plate 15 is brought into the position shown in FIG. 11A, and both the first and second flow control valves 10 and 11 are connected to the respective gas passages 6, 10, and 11. 7) is kept fully open. Therefore, as shown in FIG. 10A, the largest amount of fuel is supplied to the large capacity burner 1a and the small capacity burner 1b.

Subsequently, when the operator 14 is moved to the position shown in FIG. 9B, the cam plate 15 moves to the position shown in FIG. 11B. Therefore, as shown in FIG. 10B, the second flow control valve 11 is completely The fuel is supplied to the large-capacity burner 1a because the first flow rate control valve 10 narrows the gas passage 6, but the fuel is supplied to the small-capacity burner 1b. It is maintained in a restricted state by the amount flowing through the gap between the lease 10a and the valve hole 6a and the first flow control valve 10.

Subsequently, when the operator 14 is moved to the position shown in FIG. 9C, the cam plate 15 moves to the position shown in FIG. 11C. Therefore, as shown in FIG. 10C, the second flow control valve 11 is completely The fuel cell is kept in the open state so that the small amount burner 1b is supplied with the maximum amount of fuel. However, the first flow control valve 10 closes the gas passage 6 with the blocking portion 10c. Therefore, the fuel supplied to the large capacity burner 1a is cut off.

Subsequently, when the operator 14 is moved to the position shown in FIG. 9d, the cam plate 15 moves to the position shown by the solid line in FIG. 11d. Therefore, as shown in FIG. 10d, the second flow control valve 11 Since the gas passage 7 is narrowed, the fuel supplied to the small-capacity burner 1b through the orifice 11a formed therein is limited. In addition, the fuel supplied to the large-capacity burner 1a is kept as it is.

Next, the ignition operation of the apparatus will be described.

When pressing the ignition pushbutton 20 against the return spring 24 and pressing from the start position (A) to the end position (B), press the main valve (12a) near the intermediate position (C) to open the valve. At the same time, the solenoid safety valve 12b is pushed in the vicinity of the end position B, the valve is opened, and the switch S interposed in the operation circuit of the igniter (not shown) is turned on. And no matter where the position of the operator 14 is located, fuel is supplied to at least the small-capacity burner 1b, so that a spark from an igniter (not shown) acts and ignites it.

Subsequently, when the pressing operation of the ignition push button 20 is released, the ignition push button 20 is shot by the return spring 24 to the locking mechanism 23 in the middle of the return operation to the starting position A side. By this, the main valve 12a is engaged at an intermediate position C for maintaining the valve open state.

Further, when the ignition push button 20 is pushed again to extinguish the fire, the ignition push button 20 is released and returned to the start position A, whereby the main valve 12a is closed. Therefore, the supply of fuel gas is cut off and extinguished.

When the operator 14 is in the position shown in FIG. 9d and the cam plate 15 is in the position shown in FIG. 11d, as shown in FIG. 10d, the second flow control valve 11 is connected to the gas passage 6. ), The fuel is supplied to the small-capacity burner 1b in a restricted state through the orifice 11a formed therein. In this state of insufficient fuel, since the electromotive force of the thermocouple as the flame detector 21 can be increased quickly, the electronic safety valve 12b cannot be kept in the valve open state quickly, and therefore, good ignition cannot be obtained. Thus, when the operator 14 is in the always-on state, the projection piece 20a at the time of the ignition operation of the push button 20, that is, at the time of the push operation from the start position A to the end position B of the push button 20. ) Presses the receiving piece 15d formed on the cam plate 15 to switch the cam plate 15 from the position shown in FIG. 11d to the position in FIG. 11c, so that the first flow control valve ( 10) is kept closed, but the second flow control valve 11 is switched to the fully open state. By doing in this way, ignition can always be performed in the state which supplied the largest gas quantity to the small capacity burner 1b.

In addition, in the above embodiment, when the gas passage 6 is closed by the second flow control valve 11 at the time of ignition, the second flow control valve 11 is switched to the fully opened state and ignited. When the minimum gas for ignition is satisfactorily supplied to the small-capacity burner 1b, it is sufficient. In this embodiment, the position is only that the second flow control valve 11 is completely opened.

In addition, after the ignition operation, the second flow control valve 11 is maintained in the fully opened state as it is at the time of the ignition operation. Even after the ignition operation is completed, the operation member is held in the opened position of the second flow control valve. Therefore, even if the difference in the amount of combustion of the strength and weakness is large, since the amount of combustion does not decrease rapidly at the same time as the ignition termination, it is not mistaken for extinguishing.

In addition, in order to adjust the fuel supplied to the small-capacity burner 1b after ignition, the operator 14 may be returned to the position shown in FIG. 9D.

In addition, in FIG. 12, X-ray shows the adjustment characteristic of the fuel supplied to the large capacity burner 1a, and Y-ray shows the adjustment characteristic of the fuel supplied to the small capacity burner 1b.

Further, each of the gas passages 6 and 7 having the gas outlets 4 and 5 connected to the above-described large-capacity burner 1a and the small-capacity burner 1b is separately formed, and the first and second gas passages 6 and 7 are respectively formed. Although the flow control valves 10 and 11 are interposed, this is the large-capacity burner 1a and the small-capacity burner 1b in one gas passage 30, respectively, as shown in the second embodiment of FIGS. 13 and 14. Gas outlets 4 and 5 connected to the gas outlets; and one rod-shaped valve body 32 having first and second flow rate control valves 10 and 11 in the gas passage 30, respectively. The same control as described above can also be performed.

Referring to the second embodiment, the first flow control valve 10 is an enlarged portion that interacts with the O-ring valve seat 30b formed at the central end of the valve body 32, and the second flow rate control valve 10 is a second flow rate. The control valve 11 is a jaw formed slightly downstream from the second gas hole 32b of the valve body 32.

The valve hole 30a is formed on the upstream side of the gas passage 30 to form a valve hole 30a which interacts with the second flow rate control valve 11 formed in the valve body 32. The first flow control valve (1) is formed on the wall surface of the slightly downstream side of the wall), and the gas outlet (5) connected to the small-capacity burner (1b) is formed on the valve body slightly downstream of the gas outlet (5). The O-ring valve seat 30b interacting with 10) was formed, and at the same time, a gas outlet 4 connected to the large-capacity burner 1b was formed on the downstream wall.

The action of the first gas hole 32a, the valve hole 30a, and the second flow rate control valve 11, which are always kept open and set the minimum adjustment of the small-capacity burner on the front end side of the valve body 32. It is provided with the 2nd gas hole 32b opened and closed by this.

The valve body 32 is connected to the cam plate 15 serving as the operation member 13 to slide and at the same time the second flow rate control valve 11 is in a narrowed position. During the ignition operation, that is, the push operation from the start position A of the push button 20 to the end position B, the second flow control valve 11 is switched to the fully open state through the cam plate 15.

In the first embodiment, the thermocouple is used as the flame detector 21, and the electromotive force of the thermocouple is applied to the electromagnetic safety valve 12b to maintain the electromagnetic safety valve 12b in the valve open state. For example, a flame rod may be used, and when a predetermined electromotive force is generated in the thermocouple, electric power may be supplied to the electronic safety valve 12b from a separate power source and kept in the valve open state.

In the above embodiment, the sliding operation directions of the first and second flow control valves 10 and 11 are set in the same direction as the pressing direction of the ignition push button, but need not necessarily be the same direction.

15 to 24 show a third embodiment, which describes the first and second flow control valves 10 and 11 having the same configuration as that shown in FIGS. (13), the second flow control valve 11 is gradually opened at the minimum flow position to gradually increase the fuel supplied to the small capacity burner 1b, and after the second flow control valve 11 is fully opened, Gradually increasing the fuel supplied to the large-capacity burner 1a by gradually opening the flow control valve 10 in the closed position is not particularly different from the above embodiment, but in the present embodiment, the frame plate 3a on the valve body 3 is provided. And the cam grooves 16 and 17 formed on the frame plate 3a by constituting the operating member 13 by the lever-shaped operator 14 axially supported by the frame plate 3a and the frame plate 3a. The pins P1 and P2 protruding from the flow control valves 10 and 11 are fitted to the valve holes 6a and 7a formed in the respective gas passages 6 and 7. 1, by controlling in response to the second operating element (14), the position of the flow control valve (10, 11) to the manipulated variable was adjusted to control the fuel supplied to each burner (1a, 1b).

In detail, the mold plate 3a bends a metal plate so as to cover the outside of the portion where the flow rate control valves 10 and 11 of the valve body 3 are formed, as shown in FIG. As shown in FIG. 17, the pin P1 protruding from the first flow control valve 10 is engaged with the left side portion 3a-1 along the left side of the valve body 3 as shown in FIG. The cam groove 16 is formed and the cam groove 17 which engages the pin P2 which protrudes from the 2nd flow control valve 11 in the right side part 3a-3 along the right side as shown in FIG. ) Is formed. 3a-2 is a front part along the front of the valve body 3. As shown in FIG.

And the operator 14 shows the left side part 3a-1, the front part 3a-2, and the right side part 3a-3 of the said board 3a as shown to FIG. 20-FIG. Configured to include portions 14a, 14b, and 14c along which the shaft 14 is axially supported on the front portion 3a-2 of the frame 3a by the shaft 40. (40) was made to swing up and down. In addition, the pins P1 and P2 are disposed in the portion 4a along the left side portion 3a-1 and the portion 14c along the right side portion 3a-3 of the frame plate 3a of the operator 14. The grooves 33 and 34 to be engaged are formed.

The shape of the cam grooves 16 and 17 increases the raw material supplied to the small-capacity burner 1b by gradually opening the second flow rate control valve 11 first in accordance with the fluctuation of the operator 14 as described above. After the second flow control valve 11 is completely opened, the first flow control valve 10 is gradually opened to gradually increase the fuel supplied to the large-capacity burner 1a.

That is, as shown in FIG. 17, the cam groove 16 is provided with the inclined groove 16a which gradually opens and closes the 1st flow control valve 10, and the idle space 16b in the upper part, In the idle space 16b, the operator 14 can swing to control the second flow rate control valve 11 even in the valve closed state of the first flow rate control valve 10. As shown in FIG. 22, the cam groove 17 has a lateral groove 17b which is continued to the inclined groove 17a which gradually opens and closes the second flow control valve 11, and the second groove in the lateral groove 17b. In order to control the first flow control valve 10 even when the flow control valve 11 is completely open, the operator 14 is allowed to swing. Accordingly, in the simultaneous movement of the pins P1 and P2, the inclined grooves 16a and the lateral grooves 17b are in the corresponding positions, and the idle space 16b and the inclined grooves 17a are in the corresponding positions.

As in the above embodiment, in order to quickly increase the electromotive force of the thermocouple as the flame detector 21 and keep the solenoid safety valve 12b in the valve open state quickly, in the state where the small-capacity burner 1b is narrowed at the time of ignition. Too little fuel Thus, in the present embodiment, the swing lever 35 is formed on the valve body 3 by the shaft 35c between the protrusion 14d protruding from the operator 14 and the protrusion 20a of the push button 20. One end 35a of the rocking lever 35 was opposed to the stone piece 14d and the other end 35b was opposed to the stone piece 20a.

When the small-capacity burner b is narrowed by the operator 14, when the ignition push button 20 is pressed for ignition, the second flow control valve 11 is moved through the swing lever 35. The bay was switched to the fully opened state.

That is, the amount of rocking of the rocking lever 35 when the ignition pushbutton 20 is pressed and the protrusion 20a moves inwardly is determined by the operator 14 to operate the second flow control valve 11. The heat in the narrowed position is the width of the range controlled to the position, and does not move the first flow control valve 10.

In addition, in the left side portion 3a-1 of the frame 3a, as shown in FIG. 17, a through hole 3b along the swinging direction of the operator 14 is formed. And a projection 3b-1 having a spring plate 36 fitted into the operator hole 3b in the operator 14 and the tip end 36a formed at an intermediate position of the side edge of the hole hole 3b. And a knock mechanism is formed between the tip 36a of the spring plate 36 and the protrusion 3b-1, so that the second flow control valve 11 is completely opened and the first flow control valve 10 is opened. When the start of opening and the first flow control valve 10 is closed and the second flow control valve 11 is closed, the operation of the operator 14 is resisted to switch the flow rate control valves 10 and 11. To be manipulated by the operator.

37 shown in FIG. 18 represents a groove formed in the frame 3a, and the swing range of the operator 14 is regulated by engaging the protrusion 14a protruding from the operator 14 to the groove 37. FIG. .

In Fig. 15, 7b is a passage connecting the upstream side of the second flow control valve 11 to the gas passage 6, 38 is an ignition burner for spark ignition on the small-capacity burner 1b, and 39 is The flame transfer part formed in the large-capacity burner 1a is shown.

In Fig. 21, 35d represents a through hole formed in the swing lever 35, and the screw 41 is fastened with a screwdriver through the through hole 35d. In addition, the lid member 47 is attached with the screw 41 to cover the gas passage.

42 denotes a connector for connecting the coil of the electromagnetic safety valve 12b with the thermocouple 21. Moreover, as shown in FIG. 24, the projection 43 and 43 and the 2nd flow control valve 11 which the pin P1 which protrudes from the 1st flow control valve 10 engage with the valve body 3 are shown. When the pins P2 protruding from each other form a projection 44 to engage with each other, and the pins P1 and P2 are positioned with these, the valve plate 3 is covered with the frame plate 3a. The pins P1 and P2 are easily fitted into the cam grooves 16 and 17 formed in 3a).

In addition, in FIG. 20, 45 represents the preliminary axis of the swing lever 35. As shown in FIG. That is, when the device is shared with the left burner and the right burner consisting of two cones, the positional relationship between the push button 20 and the operator 14 is reversed by reversing the upper and lower sides of the valve body 3. You can do For example, when the operator 14 is to be formed outside the push button 20 on the left burner 1 and the right burner 1, or the push buttons on the left burner 1 and the right burner 1, respectively. In the case where the operator 14 is to be formed inside each of the 20, when the control direction of the first and second flow control valves 10 and 11 by the operator 14 is to be the same, the valve A separate frame plate having the cam grooves 16 and 17 which are symmetrical with the cam grooves 16 shown in FIG. 17 and the cam grooves 17 shown in FIG. 3a), a symmetrical swing lever 35 which is symmetrical to the swing lever 35 shown in FIG. 21 is prepared separately, and the operator 14 shown in solid line in FIG. 18 is a two-dot chain line. By separately preparing the symmetrical operator shown, the operator 14 is axially supported on the side 40 as indicated by the dashed-dotted line in FIG. This can be achieved by supporting the copper lever 35 by the preliminary shaft 15.

46 denotes a gas inlet to the ignition burner 38 formed in the valve body 3. In addition, the other structure is the same as the above-mentioned embodiment.

The combustion control device according to claim 1 having the above structure has the following effects.

When the pushbutton is pushed from the start position to the end position, that is, when the pushbutton is ignited, if the operating member is in a position to close the second flow control valve, the pushbutton must be pressed to the second The flow control valve is operated to the valve open side. Therefore, during the ignition operation, the second flow control valve of the small-capacity burner is always ignited in the valve open state, and the valve open state is maintained when the electromotive force of the flame detector is above a predetermined size in the gas passage upstream of the flow control valve. Since an electronic safety valve is installed and the flame detector is installed at a position heated by the flame from the small capacity burner, the flame detector is heated by a small capacity burner in a state where the supply of gas is increased to open the electronic safety valve. Good ignition can be achieved by quickly obtaining a predetermined or more electromotive force necessary to maintain the state.

Further, even after the end of the ignition operation, the operation member holds the second flow control valve in the valve open position. Therefore, even if the difference in the amount of combustion of the strength and weakness is large, the ignition ends and the amount of combustion does not decrease rapidly.

In addition, the combustion control device according to claim 2 having the above structure has the following effects.

The first flow rate control when the second flow control valve is operated to the valve opening side through the operation member by a pressing operation from the start position to the end position of the ignition push button when the operation member is in the adjustment position; Since the valve is kept closed, the ignition when the second flow control valve is closed by the operating member does not supply gas to the large-capacity burner, thus eliminating unnecessary gas consumption during ignition. In addition, since there is an increase in the minimum amount of gas that improves ignition, there is no cooking problem in which excessive heat affects the food.

Claims (2)

Combination of a large-capacity burner and a small-capacity burner is a double burner, and a first flow control valve is formed in the gas passage connected to the large-capacity burner, and a second flow control valve is formed in the gas passage connected to the small-capacity burner. In addition, an electronic safety valve is installed in the gas passage upstream of the flow control valve to maintain the valve open when the electromotive force of the flame detector is equal to or greater than a predetermined size, and the flame detector is heated by a flame from a small-capacity burner. The flow rate control valve is opened and closed by one operation member having a common flow rate control valve, and the flow rate control valve is maintained at a position for maintaining an adjustment degree according to the operation position of the operation member. In the case where the electromagnetic safety valve is in the valve open state in association with the ignition operation of the ignition push button, When in position the control valve narrowed, the combustion control apparatus characterized by the first movement operation toward the valve opening of the second flow control valve to the operating member in accordance with the ignition operation of the push button for the ignition. The position at which the operation member is moved to the valve opening side of the second flow control valve according to the ignition operation of the ignition push button is a position at which the first flow control valve maintains a valve closed state. Combustion control device, characterized in that.