JPH06147465A - Apparatus for controlling combution of gas - Google Patents

Abstract

PURPOSE:To provide an apparatus for controlling combustion of gas in which a flame power can be decreased down to such a gas flow rate as one in which a burner does not diminish its capability even in case of performing an automatic temperature adjustment and the flame power can be changed over in multi-stage. CONSTITUTION:There are provided a rotating shaft 38 having two staged cam in its axial direction, a motor 50 for driving the rotating shaft 38, a flowing-out valve member 36 opened or closed independently with a first cam 41 of the rotating shaft 38, a plurality of flowing-in valve discs 35 opened or closed independent with a second cam 40 of the rotating shaft 38, and a flow rate restricting member 57 having a flow rate restricting hole 58 opposing against a plurality of flowing-in valve discs 35 and changing a hole area for each of them. When a flow rate of gas is changed over, a plurality of flowing-in valve discs 35 are always opened. With such an arrangement as above, the rotating shaft 38 is merely driven by the motor 50, resulting in that all the operations including flowing-out, stopping of gas and changing-over of gas volume can be controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas combustion control device for use in a combustion instrument that burns gas as fuel.

[0002]

2. Description of the Related Art A conventional combustion device of this type is shown in FIGS.
Shown in. FIG. 8 is a front perspective view of a conventional gas cooker, FIG. 9 is a schematic view of the structure of a conventional stove, and FIG. 10 is an adjustment diagram of a gas flow rate during automatic temperature control in a conventional example.

As shown in FIG. 8, a conventional gas cooker includes a stove burner 1, a temperature sensor 2, a heater 3, an ignition / extinguishing button 4, a heat power adjusting lever 5, a grill portion 6, and an automatic temperature control panel 7. It is configured. FIG. 9 is a diagram showing the outline of the structure of the stove. When the ignition / extinguishing button 4 is pushed in, the ignition switch 8 is turned on, and the solenoid valve 10 for temperature control and the solenoid valve 11 for temperature control are energized via the control board 20 to be in the open state. Becomes The gas flows from the gas inlet 9 through the main solenoid valve 10, the bypass passage 12 and the bypass nozzle 14, and also the temperature regulating solenoid valve 11 and the main passage 13, and the manual valve 1
5, the heat power adjusting needle 16, the stove pipe 17, and the nozzle receiver 18, and the maximum flow rate is regulated by the main nozzle 19 to be supplied to the burner 1. At the same time, the igniter 21 is turned on via the control board 20, the spark plug 22 is discharged, the burner 1 starts combustion, the thermocouple 23 receives heat from the burner 1, transmits thermoelectromotive force to the control board 20, and continues combustion. It is configured to let.

When adjusting the heat power in this state, the combustion amount is adjusted by operating the heat power adjusting lever 5 and moving the heat power adjusting needle 16, or the power of the temperature adjusting solenoid valve 11 is turned on during automatic temperature adjustment, By turning it off, the combustion amount is selected to be regulated by the bypass nozzle 14 or the main nozzle 19. FIG. 10 shows gas flow rate adjustment during automatic temperature control.
In FIG. 10, the horizontal axis represents time and the vertical axis represents gas flow rate, and FIG. 10 shows two patterns for gas flow rate adjustment. When controlling the gas amount by changing the gas amount by the automatic temperature control in the above-described configuration, the temperature control solenoid valve 11 in FIG. 9 is turned on (high heat combustion) and off (low heat combustion) for a certain period of time as shown in FIG.
The gas flow rate within the total control time 26 (pattern A, pattern B) is obtained by combining the N time 24 and the solenoid valve OFF time 25.
The hatching part of) is adjusted.

[0005]

However, in the above-mentioned conventional configuration, there is a large difference between the maximum gas flow rate regulated by the main nozzle 19 and the minimum gas flow rate during automatic temperature regulation regulated by the bypass nozzle 14. Since a rapid change in the gas amount occurs when the power of the temperature control solenoid valve 11 is switched between ON and OFF, a gas that can be manually squeezed by the power adjustment needle 16 to prevent fire extinguishing that burns out the flame of the burner 1 is generated. The gas flow rate regulated by the bypass nozzle 14 has to be increased by about 10 to 20% than the flow rate, and there is a problem that the thermal power throttle cannot be fully throttled during automatic temperature control. In addition, when adjusting the gas flow rate by automatic temperature control, a strong flame-a weak flame combustion is generated, which causes a sudden flame change and makes the user feel uneasy. There was also the issue that Further, during use of the gas cooker, it is necessary to always energize in order to keep one or more solenoid valves open, and there is a problem that power consumption is large.
The present invention is to solve the above problems, in the combustion control of gas combustion equipment, even during automatic temperature control, the burner can sufficiently reduce the heat power to a gas flow rate that does not extinguish the fire, and also during high temperature during automatic temperature control. Since the amount of gas can be changed without performing low-pressure combustion, the purpose of the present invention is not to cause a user to feel uncomfortable, to reduce annoying operation noise, and to reduce power consumption and control combustion.

[0006]

Means for Solving the Problems As a first means for achieving the above object, the present invention, in combustion control of a gas combustion appliance, includes a rotary shaft provided with two stages of cams in the axial direction, and a rotary shaft of the rotary shaft. An outflow valve body that is independently opened and closed by a cam on one side, a plurality of inflow valve bodies that are independently opened and closed by a cam on the other side of the rotating shaft, and a plurality of inflow valve bodies that are opposed to the plurality of inflow valve bodies. A flow regulating body having a flow regulating hole of which the hole area is changed is provided, and a plurality of inflow valve bodies are always opened when switching the gas flow rate.

As a second means, in the combustion control of a gas combustion appliance, a rotary shaft provided with a cam in the axial direction, and a plurality of valve bodies that reciprocate linearly in the axial direction by the cams of the rotary shaft are provided. The configuration is characterized in that the plurality of valve bodies are arranged on a concentric circle centered on the rotation center of the rotation shaft.

As a third means, in combustion control of a gas combustion appliance, a rotary shaft provided with two-stage cams in the axial direction,
An outflow valve body that opens and closes independently by a cam on one side of the rotating shaft and an inflow valve body that opens and closes independently by a cam on the other side of the rotating shaft are provided, and the outflow valve body and the inflow valve when the gas is closed. The feature is that both valve bodies of the body are closed.

As a fourth means, in the combustion control of a gas combustion appliance, a rotary shaft provided with two stages of cams in the axial direction,
A motor for driving the rotating shaft, an outflow valve body that is independently opened and closed by a cam on one side of the rotating shaft, and a plurality of inflow valve bodies that are independently opened and closed by a cam on the other side of the rotating shaft. A flow restricting body having flow restricting holes whose respective hole areas are changed in opposition to the plurality of inflow valve bodies, and the plurality of inflow valve bodies are always opened when the gas flow rate is switched. And the configuration.

As a fifth means, in combustion control of a gas combustion appliance, a rotary shaft provided with two-stage cams in the axial direction,
Outflow valve body that opens and closes independently by a cam on one side of the rotating shaft, a plurality of inflow valve bodies that open and close independently by a cam on the other side of the rotating shaft, and the inflow around the rotating shaft. A cylindrical valve body support that concentrically supports the valve body and the outflow valve body, a valve body having gas passage holes facing the inflow and outflow valve bodies, and a plurality of inflow valve bodies. And a flow regulating body having flow regulating holes of which the hole areas are changed, the valve body support and the valve body are fixed, and the flow regulating body flows into the gas passage hole of the valve body. The feature is that it is provided on the side.

As a sixth means, in the combustion control of a gas combustion appliance, a rotary shaft provided with two stages of cams in the axial direction,
Driving means for driving the rotating shaft, rotating angle detecting means for detecting a rotating angle of the rotating shaft, an outflow valve body which is independently opened and closed by a cam on one side of the rotating shaft, and the other of the rotating shafts. A plurality of inflow valve bodies that are independently opened and closed by a cam on one side, and a flow rate control body that is provided with flow rate control holes that face the plurality of inflow valve bodies and that have different hole areas, and set the heat power. It is characterized in that it is provided with a thermal power setting means for carrying out, a plurality of inflow valve bodies are always opened when the gas flow rate is switched, and the driving speed of the driving means is variable depending on the magnitude of the change in the set amount. .

As a seventh means, in the combustion control of a gas combustion appliance, a rotary shaft provided with a two-stage cam in the axial direction,
An outflow valve body that is independently opened and closed by a cam on one side of the rotating shaft; a plurality of inflow valve bodies that are independently opened and closed by a cam on the other side of the rotating shaft; and a plurality of inflow valve bodies. A flow restricting body having flow restricting holes that are opposed to each other, and a cock body having a gas inflow port and a gas outflow port in an inflow side gas passage facing the inflow valve body and the flow restricting body. When using multiple cocks equipped with the above, the gas inlet and gas outlet of the cock body are both cylindrical, and the dimensions are such that they can seal the gas by fitting through a ring-shaped seal packing. And it has a configuration.

[0013]

According to the present invention, the rotary shaft having the two-stage cam in the axial direction, the outflow valve body which is independently opened / closed by the cam on one side of the rotary shaft, and the other side of the rotary shaft are constituted by the above structure. A plurality of inflow valve bodies that are independently opened and closed by the cams of the above, and a flow rate control body having flow rate control holes facing the plurality of inflow valve bodies and having respective hole areas changed, By always opening a plurality of inflow valve bodies at the time of switching, it is possible to control all the operations of gas outflow, closing, and gas amount switching only by rotational driving of one axis. Further, even when the gas amount is switched, the gas amount does not change rapidly, so that the burner is less likely to be extinguished.

Further, the rotary shaft is provided with a cam provided in the axial direction, and a plurality of valve bodies that reciprocate linearly in the axial direction by the cams of the rotary shaft, the plurality of valve bodies being the center of rotation of the rotary shaft. By arranging them on a concentric circle centering around, the operations of gas outflow, closing, and gas amount switching can all be controlled by only uniaxial rotation drive, and the gas control device body can be made compact and compact.

Further, a rotary shaft provided with two stages of cams in the axial direction, an outflow valve body which is independently opened and closed by a cam on one side of the rotary shaft, and a cam on the other side of the rotary shaft independently. By providing an inflow valve body that opens and closes and closing both the outflow valve body and the inflow valve body when the gas is closed, the operation of outflowing, closing, and switching the gas amount can be performed only by uniaxial rotation drive. Can control everything. Also, foreign matter on the valve on one side,
Even if the valve is not closed due to dust or the like, the valve on the other side shuts off the gas, so a serious accident such as a gas leak does not occur and safety is secured.

Further, a rotary shaft provided with two stages of cams in the axial direction, a motor for driving the rotary shaft, an outflow valve body which is independently opened and closed by a cam on one side of the rotary shaft, and a rotary shaft of the rotary shaft. A plurality of inflow valve bodies that are independently opened and closed by a cam on the other side, and a flow rate regulation body that is provided with flow rate regulation holes that are opposed to the plurality of inflow valve bodies and have their respective hole areas changed, By opening a plurality of inflow valve bodies at the time of switching the gas flow rate, it is possible to control all the operations of gas outflow, closing, and gas amount switching only by driving the motor. In addition, the electric power required for the operations such as gas outflow, closing, and gas amount switching is required only when the motor is driven, so the power consumption can be reduced.

Further, a rotary shaft provided with two stages of cams in the axial direction, an outflow valve body which is independently opened and closed by a cam on one side of the rotary shaft, and a cam on the other side of the rotary shaft independently. A plurality of inflow valve bodies that open and close, a cylindrical valve body support that concentrically supports the inflow valve body and the outflow valve body around the rotating shaft, and a gas that faces each of the inflow and outflow valve bodies A valve body provided with a passage hole, and a flow rate regulating body having flow rate regulating holes facing the plurality of inflow valve bodies and having respective hole areas changed, the valve body support and the valve body are provided. Is fixed and the flow rate restrictor is provided on the inflow side of the gas passage hole of the valve body, so that all the operations such as gas outflow, shutoff, and gas amount switching can be controlled only by uniaxial rotation drive. it can. Further, even in the case of performing gas type conversion or the like, it is sufficient to replace only the flow rate regulator without touching a plurality of valve bodies, and gas type conversion can be performed smoothly.

Further, a rotary shaft provided with two stages of cams in the axial direction, drive means for driving the rotary shaft, rotation angle detection means for detecting a rotary angle of the rotary shaft, and one side of the rotary shaft. Outflow valve bodies that are opened and closed independently by a cam, a plurality of inflow valve bodies that are independently opened and closed by a cam on the other side of the rotating shaft, and the area of each hole facing the plurality of inflow valve bodies. Provided with a flow rate regulating body having a changed flow rate regulating hole and a thermal power setting means for setting thermal power, always opening a plurality of inflow valve bodies at the time of gas flow rate switching, and setting the drive speed of the drive means. By making it variable according to the amount of change in the amount, gas can flow out, close,
It is possible to completely control the operation of switching the gas amount. Further, when the gas amount is switched, the user can see the user that the thermal power adjustment speed is fast during the first time, which gives a quick impression and a satisfactory feeling. It is also possible to prevent backfire due to a sudden change in the amount of combustion.

Further, a rotary shaft provided with two stages of cams in the axial direction, an outflow valve body independently opened and closed by a cam on one side of the rotary shaft, and a cam on the other side of the rotary shaft independently. A plurality of inflow valve bodies to be opened and closed, a flow rate control body having flow rate control holes facing the plurality of inflow valve bodies and having respective hole areas changed, and to the inflow valve body and the flow rate control body. In the case of using a plurality of cocks provided with a cock body having a gas inflow port and a gas outflow port in the inflow side gas passage,
Both the gas inlet and the gas outlet of the cock body are cylindrical, and are dimensioned so that the gas can be sealed by fitting through a ring-shaped seal packing.
Even when using a model with a different number of mouths, three mouths, and four mouths, simply by increasing the number of cocks of the present invention to be connected, it is possible to easily cope with the design. In addition, parts that require complicated processing such as a flange shape for connecting the cocks are not required, and it is possible to manufacture at low cost and to assemble easily.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that parts having the same functions as conventional ones are given the same numbers and their explanations are omitted.

1 to 7, FIG. 1 is a schematic view of a gas flow rate adjusting means and a driving means for driving the adjusting means when a gas flows out, and FIG. 2 is a gas according to the embodiment of the present invention. FIG. 3 is a schematic view of the structure of the flow rate adjusting means and the driving means for driving the adjusting means when the gas is closed, FIG. 3 is a front perspective view of the gas cooker in the embodiment of the present invention, and FIG. 4 is a stovetop in the embodiment of the present invention. FIG. 5 is a structural schematic diagram, FIG. 5 is a positional correlation diagram of an outflow valve body, an inflow valve body, a rotary shaft, and a flow regulating body of the gas flow rate adjusting means in the embodiment of the present invention, and FIG. 6 is a gas flow rate adjusting means in the embodiment of the present invention. FIG. 7 shows a gas flow rate adjusting characteristic diagram of FIG. 7, and FIG. 7 shows a schematic structure diagram when an embodiment of the present invention is used for a plurality of stoves.

As shown in FIG. 3, the gas cooker of the present invention is
It comprises a stove burner 1, a temperature sensor 2, and the like 3, an ignition / fire extinguishing switch 28, a heat power adjusting switch 29, a grill portion 6, and an automatic temperature control operation panel 7. FIG. 4 is a diagram showing a schematic structure of the stove. When the ignition / extinguishing switch 28 of the heating power setting means 27 is pushed, the gas flow rate adjusting driving means 32 is driven via the control board 20, and the rotation angle detecting means 31.
While detecting the rotation angle of the driving means by the gas, the gas passes through the gas flow inlet 33, the gas flow rate adjusting means 30, the stove pipe 17, the nozzle receiver 18, and the main nozzle 19 regulates the maximum flow rate to the burner 1. Supplied. At the same time, the igniter 21 is turned on via the control board 20, the spark plug 22 is discharged, the burner 1 starts combustion, and the thermocouple 23
Receives heat from the burner 1, transmits thermoelectromotive force to the control board 20, and continues combustion.

1 and 2 show the gas flow rate adjusting means 30.
, Gas flow rate adjustment drive means 32, and rotation angle detection means 3
1 shows a schematic structure, and in this embodiment, the gas flow rate adjusting driving means 32 includes a motor 50, a motor gear 49,
It consists of a worm 48 and a worm wheel 47, and when the motor 50 is energized via the control board 20, the motor 5
0 is rotationally driven, and its rotation is transmitted to the motor gear 49, the worm 48, and the worm wheel 47, and rotationally drives the rotary shaft 38. The rotation angle detecting means 31 is provided with a portion of the rotation shaft 38 whose cross section is D-cut, and is made to face the encoder 46 to measure the rotation angle of the rotation shaft 38 via the control board 20. Further, the gas flow rate adjusting means 30 has a valve body support 44 for supporting the inflow valve body 35, the outflow valve body 36 and the spring 37, a valve body 43 having an inflow side gas passage hole 34 and an outflow side gas passage hole 39. Are independently fixed by claw fitting, and the valve body 43 and the cock body 42 are fixed.
The flow restricting body 57 is sandwiched between the valve and the outer wall 45 of the cock to join the cock body 42, and when the gas is closed, the inflow valve body 35 and the outflow valve body provided with the rubber valve packing 56 as shown in FIG. Although both 36 are pressed against the valve body 43 by the pressing force of the spring 37 to close the gas, when the rotary shaft 38 is rotated by the heat power adjusting drive means 32, as shown in FIG. Due to the provided first cam 41 and second cam 40, the first cam 41 opens the outflow valve body 36, and the second cam 40 opens the inflow valve body 35. Gas inlet 33 of FIG.
The more inflowing gas flows from the gas passage of the cock body 42 through the flow rate restricting hole 58 of the flow rate restricting body 57, the inflow side gas passage hole 34 of the valve body 43, into the valve body support body 44, and again. Outflow side gas passage hole 39
And is discharged to the stove pipe 17. 1 and 2
In the figure, 51 to 55 are seal packings for sealing the gas at the joint portion of the parts.

FIG. 5 shows the outflow valve body 36, the inflow valve body 35, the rotary shaft 38 and the flow rate regulating body 5 of the gas flow rate adjusting means 30 of the present invention.
7 shows the positional correlation of 7, and one outflow valve body 36 and five inflow valve bodies 35a, 35 are provided on the concentric circle of the rotation center of the rotating shaft 38.
b, 35c, 35d, 35e are arranged, and the inflow valve body 3 is provided.
5a to 35e, the flow rate regulating holes 58 of the flow rate regulating body 57 are respectively arranged, and the respective regulation hole areas are changed.

FIG. 6 is a characteristic diagram for adjusting the gas flow rate in the above-mentioned structure. In the upper diagram of FIG. 6, the horizontal axis represents the rotation angle of the rotary shaft 38, and the vertical axis represents the respective valve bodies (inflow valve bodies 35a to 3a).
5e, opening and closing of the outflow valve body 36). The lower part of FIG. 6 shows the flow rate characteristics by opening and closing the respective valve bodies, with the horizontal axis representing the rotation angle of the rotary shaft 38 and the vertical axis representing the gas flow rate. In the above-mentioned configuration, when the heat power is switched by setting the heat power adjusting switch 29 of the heat power setting means 27, in the present embodiment, the rotation angle detecting means 31 measures the rotation angle of the rotary shaft 38 while driving means. By controlling the rotation of the rotary shaft 38 by 32, the inflow valve body 3 can be controlled as shown in FIG.
By switching the opening and closing of 5a to 35e, the gas flow rate to be supplied to the stove can be set in 5 steps (maximum gas flow rate 59, medium fire gas flow rate 6
0, weak-strong gas flow rate 61, weak-medium gas flow rate 62, weak-weak gas flow rate 63).

In the present embodiment, with the above-described structure, all that is required is to drive the rotating shaft 38 with the motor 50 to control the outflow, closing, and gas amount switching of the gas. Therefore, the power consumption required is only used when the motor 50 is driven when the gas is opened / closed and when the gas flow rate is adjusted, so the power consumption can be reduced.

Further, in this embodiment, when the gas flow rate is switched as shown in FIG. 6, two adjacent inflow valve bodies (35a, 35b, etc.) are simultaneously opened and switched, so that a rapid change in gas amount does not occur. Therefore, the weak-weak gas flow rate 63 can be reduced to a gas flow rate at which the burner does not extinguish fire or backfire.

Further, in this embodiment, by varying the voltage for driving the motor 50 via the control board 20, the range of thermal power adjustment by the thermal power setting means 27 is from the maximum gas flow rate 59 to the weak-weak gas flow rate 63. Even when the flow rate is large, the voltage applied to the motor 50 is increased and the inflow valve body 35 is increased from the maximum gas flow rate 59 to the medium-medium gas flow rate 62.
When the switching speed of the inflow valve is fast, the voltage applied to the motor 50 is lowered between the weak-medium gas flow rate 62 and the weak-weak gas flow rate 63, and the switching speed of the inflow valve body is controlled to be slow. Since the apparent gas flow rate is switched quickly and delicate adjustments are performed slowly, there is no risk of fire extinguishing of the burner or backfire.

Further, in this embodiment, the valve body support 4 supporting the inflow valve body 35, the outflow valve body 36 and the spring 37.
4 and the valve body 43 having the inflow-side gas passage hole 34 and the outflow-side gas passage hole 39 are independently fixed by claw fitting, and the flow rate restrictor 57 is provided between the valve body 43 and the cock body 42. Since the cock outer wall 45 and the cock body 42 are joined by being sandwiched, the valve bodies 35 and 36 do not come off due to the pushing force of the spring 37 at the time of assembly and can be easily assembled.

Further, as shown in FIG. 1, since the flow rate regulating body 57 for regulating the flow rate is provided on the inflow side of the valve body 43, the outflow valve body 3 is provided even during the gas conversion service.
5, it is not necessary to disassemble the inflow valve body 36, the spring 37, and the like, and only the flow rate regulator 57 needs to be replaced, so that the gas species conversion is easy.

Next, a case where the gas combustion control device of the present invention is used for a plurality of stoves will be described with reference to FIG. In this embodiment, the gas inlet 33b of the cock body 42b and the gas outlet 64a of the cock body 42a are both cylindrical, and the gas flow rate adjusting means 30a and the gas flow rate adjusting means are sealed while the gas is sealed by fitting through the seal packing 65a. The means 30b are joined. Even when the gas flow rate adjusting means 30a is in a gas closed state, the gas flowing in from the gas inlet 33a flows into the gas flow rate adjusting means 30b through the cock bypass passage 67a of the cock body 42a. The gas passing through the cock bypass passage 67b of the gas flow rate adjusting means 30b is joined to the gas outlet 64b with the gas closing cap 66 via the seal packing 65b.
It prevents the outflow of gas to the outside. The gas supplied to the burner 1a passes from the gas flow rate adjusting means 30a through the stove pipe 17a, the nozzle receiver 18a, and the main nozzle 19.
supplied through a. The gas supplied to the burner 1b is supplied from the gas flow rate adjusting means 30b through the stove pipe 17b, the nozzle receiver 18b, and the main nozzle 19b.

With the above-mentioned structure, even when the present invention is used for models having different numbers of 2, 3, and 4 stoves, the number of gas flow rate adjusting devices of the present embodiment to be connected can be changed by using the embodiment of the present invention. It can be easily designed by simply increasing the number, and parts that require complicated processing such as a flange shape for connection are not required, and it can be manufactured at low cost and is easy to assemble.

[0033]

As described above, according to the cooker using the gas combustion control device of the present invention, the following effects can be obtained.

A rotary shaft provided with two-stage cams in the axial direction, an outflow valve body which is opened and closed independently by a cam on one side of the rotary shaft, and an open / close independently by a cam on the other side of the rotary shaft. A plurality of inflow valve bodies, and a flow rate regulating body having flow rate regulating holes facing the plurality of inflow valve bodies and having respective hole areas changed, and a plurality of flow rate regulating bodies are always provided at the time of gas flow rate switching. By opening the inflow valve body, it is possible to control all the operations of outflow, closing, and switching of the gas amount with only one axis of rotational drive. Further, even when the gas amount is switched, the gas amount does not change rapidly, so that the burner is less likely to be extinguished.

The rotary shaft is provided with a cam in the axial direction, and a plurality of valve bodies that make a reciprocating linear motion in the axial direction by the cams of the rotary shaft are provided. By arranging them on a concentric circle as the center, all operations such as gas outflow, closing, and gas amount switching can be controlled only by uniaxial rotation drive, and the gas control device body can be made compact and compact.

A rotary shaft provided with two-stage cams in the axial direction, an outflow valve body which is independently opened / closed by a cam on one side of the rotary shaft, and an open / close independently by a cam on the other side of the rotary shaft. By providing an inflow valve body for closing the gas, and closing both the outflow valve body and the inflow valve body when the gas is closed, the operation of outflowing, closing, and switching the gas amount can be performed only by uniaxial rotation drive. You can control everything. Even if foreign matter, dust, etc. enter the valve on the one side and the valve does not close, the valve on the other side shuts off the gas, so a large accident such as gas leakage does not occur and safety is secured.

A rotary shaft provided with two-stage cams in the axial direction, a motor for driving the rotary shaft, an outflow valve body which is independently opened and closed by a cam on one side of the rotary shaft, and another rotary shaft of the rotary shaft. A plurality of inflow valve bodies that are independently opened and closed by a cam on one side, and a flow rate control body that is provided with flow rate control holes that are opposed to the plurality of inflow valve bodies and have different hole areas are provided. By opening a plurality of inflow valve bodies at all times when switching the flow rate of
It is possible to control all operations such as closing and switching the gas amount.
In addition, the electric power required for the operations such as gas outflow, closing, and gas amount switching is required only when the motor is driven, so the power consumption can be reduced.

A rotary shaft provided with two-stage cams in the axial direction, an outflow valve body which is independently opened / closed by a cam on one side of the rotary shaft, and an open / close independently by a cam on the other side of the rotary shaft. A plurality of inflow valve bodies, a cylindrical valve body support that concentrically supports the inflow valve body and the outflow valve body around the rotating shaft, and a gas passage that faces each of the inflow and outflow valve bodies. A valve body having a hole and a flow rate regulating body having a flow rate regulating hole facing each of the plurality of inflow valve bodies and having respective hole areas varied are provided, and the valve body support and the valve body are provided. Since the flow rate restricting body is fixed and provided on the inflow side of the gas passage hole of the valve body, all the operations of outflowing, closing, and switching of the gas amount can be controlled only by uniaxial rotation drive. . Further, even in the case of performing gas type conversion or the like, it is sufficient to replace only the flow rate regulator without touching a plurality of valve bodies, and gas type conversion can be performed smoothly.

A rotary shaft provided with two-stage cams in the axial direction, drive means for driving the rotary shaft, rotation angle detection means for detecting the rotary angle of the rotary shaft, and cam on one side of the rotary shaft. Outlet valve body that opens and closes independently, a plurality of inlet valve bodies that open and close independently by a cam on the other side of the rotating shaft, and the hole area of each of the inlet valve bodies changes relative to the plurality of inlet valve bodies. A flow rate regulating body having such a flow rate regulating hole and a thermal power setting means for setting the thermal power are provided, and a plurality of inflow valve bodies are always opened when switching the gas flow rate, and the drive speed of the drive means is set by a set amount. By making it variable according to the magnitude of the change in the above, it is possible to control all the operations of gas outflow, closing, and gas amount switching only by uniaxial rotation drive.

Further, when the gas amount is switched, the thermal power adjustment speed is fast from the user's point of view at the beginning, so that it is possible to give the impression of being rapidly performed and to satisfy the user. It is also possible to prevent backfire due to a sudden change in the amount of combustion.

A rotary shaft provided with two stages of cams in the axial direction, an outflow valve body which is independently opened / closed by a cam on one side of the rotary shaft, and an open / close independently by a cam on the other side of the rotary shaft. A plurality of inflow valve bodies, a flow rate regulating body having flow rate regulating holes facing the plurality of inflow valve bodies and having respective hole areas changed, and inflows facing the inflow valve body and the flow rate regulating body. When using a plurality of cocks provided with a cock body having a gas inlet and a gas outlet in the side gas passage, both the gas inlet and the gas outlet of the cock body are cylindrical, and a ring-shaped seal packing The size and shape allow gas to be sealed by fitting through 2 ports, 3 ports
Even if you use it on a model with a different number of mouths, 4 mouths and stove,
This can be easily achieved by designing simply by increasing the number of cocks of the present invention to be connected. In addition, parts that require complicated processing such as a flange shape for connecting the cocks are not required, and it is possible to manufacture at low cost and to assemble easily.

[Brief description of drawings]

FIG. 1 is a schematic structural view of a gas flow rate adjusting means and a driving means in an embodiment of the present invention.

FIG. 2 is a schematic structural view of the gas flow rate adjusting means and the driving means.

FIG. 3 is a front perspective view of the gas cooker.

[Fig. 4] Schematic structure of the stove

FIG. 5 is a positional correlation diagram of the outflow valve body, the inflow valve body, the rotating shaft, and the flow rate regulating body of the thermal power adjustment means.

FIG. 6 is a thermal power adjustment characteristic diagram of the thermal power adjustment means.

FIG. 7 is a structural schematic diagram when the same is used for a plurality of stoves.

FIG. 8 is a front perspective view of a conventional gas cooker.

FIG. 9: Schematic view of the structure of the stove

FIG. 10 is an adjustment diagram of gas flow rate during automatic temperature control.

[Explanation of symbols]

 27 Thermal Power Setting Means 31 Rotation Angle Detection Means 33 Gas Inlet 34 Inflow Side Gas Passage 35 Inflow Valve Body 36 Outflow Valve Body 38 Rotating Shafts 40, 41 Cam 42 Cock Body 43 Valve Body 44 Valve Body Support 50 Motor 57 Flow Regulator 58 Flow Rate Control Port 64 Gas Outlet Port 65 Seal Packing

Claims (7)

[Claims] 1. In combustion control of a gas combustion appliance, a rotary shaft provided with a two-stage cam in the axial direction, an outflow valve body that is independently opened and closed by a cam on one side of the rotary shaft, and a rotary shaft of the rotary shaft. A plurality of inflow valve bodies that open and close independently by the cam on the other side,
And a flow rate regulating body having flow rate regulating holes each having a different hole area facing the plurality of inflow valve bodies, and the plurality of inflow valve bodies are always opened when switching the gas flow rate. Gas combustion control device. 2. A combustion control system for a gas combustion device, comprising: a rotary shaft provided with a cam in the axial direction; and a plurality of valve bodies that reciprocate linearly in the axial direction by the cams of the rotary shaft. A gas combustion control device characterized in that the valve element is arranged on a concentric circle centered on the center of rotation of the rotary shaft. 3. In the combustion control of a gas combustion appliance, a rotary shaft having a two-stage cam in the axial direction, an outflow valve body which is independently opened and closed by a cam on one side of the rotary shaft, and a rotary shaft of the rotary shaft. A gas combustion control device characterized in that an inflow valve body that is independently opened and closed by a cam on the other side is provided, and both the outflow valve body and the inflow valve body are closed when the gas is closed. 4. In the combustion control of a gas combustion appliance, a rotary shaft provided with a two-stage cam in the axial direction, a motor for driving the rotary shaft, and a cam on one side of the rotary shaft independently open and close. An outflow valve body, a plurality of inflow valve bodies that are independently opened and closed by a cam on the other side of the rotating shaft, and a flow regulating hole that has a different hole area facing each of the plurality of inflow valve bodies. A gas combustion control device characterized in that a plurality of inflow valve bodies are always opened at the time of switching the gas flow rate by providing a flow rate control body provided. 5. In the combustion control of a gas combustion appliance, a rotary shaft provided with a two-stage cam in the axial direction, an outflow valve body which is independently opened and closed by a cam on one side of the rotary shaft, and a rotary shaft of the rotary shaft. A plurality of inflow valve bodies that open and close independently by the cam on the other side,
A cylindrical valve body support for concentrically supporting the inflow valve body and the outflow valve body around the rotating shaft; a valve body having gas passage holes facing the respective inflow and outflow valve bodies; A flow restricting body having flow restricting holes that are opposed to a plurality of inflow valve bodies and have different hole areas are provided, the valve body support and the valve body are fixed, and the flow restricting body is A gas combustion control device characterized in that it is provided on the inflow side of the gas passage hole of the valve body. 6. In combustion control of a gas combustion appliance, a rotary shaft provided with a two-stage cam in the axial direction, a drive means for driving the rotary shaft, and a rotation angle detection means for detecting a rotation angle of the rotary shaft. An outflow valve body that is independently opened and closed by a cam on one side of the rotating shaft, a plurality of inflow valve bodies that are independently opened and closed by a cam on the other side of the rotating shaft, and a plurality of inflow valves Provided with a flow rate regulating body having a flow rate regulating hole in which the area of each hole is changed facing the body, and a thermal power setting means for setting the thermal power, a plurality of inflow valve bodies are always opened when switching the gas flow rate. Also, a gas combustion control device characterized in that the drive speed of the drive means is made variable according to the magnitude of the change in the set amount. 7. In the combustion control of a gas combustion appliance, a rotary shaft provided with a two-stage cam in the axial direction, an outflow valve body which is independently opened and closed by a cam on one side of the rotary shaft, and a rotary shaft of the rotary shaft. A plurality of inflow valve bodies that open and close independently by the cam on the other side,
A flow restricting body having flow restricting holes facing the plurality of inflow valve bodies and having respective hole areas changed, and a gas inlet and a gas in an inflow side gas passage facing the inflow valve body and the flow restricting body. When using a plurality of cocks provided with a cock body having an outflow port, both the gas inflow port and the gas outflow port of the cock body are made cylindrical, and the gas is sealed by fitting through an annular seal packing. Combustion control device for gas, which is characterized by the size and shape possible.