CN1311196C

CN1311196C - Gas controller

Info

Publication number: CN1311196C
Application number: CNB031411622A
Authority: CN
Inventors: 水谷圭一
Original assignee: Rinnai Corp
Current assignee: Rinnai Corp
Priority date: 2002-06-10
Filing date: 2003-06-10
Publication date: 2007-04-18
Anticipated expiration: 2023-06-10
Also published as: KR100518488B1; JP2004012063A; TW200404140A; KR20030095293A; HK1062324A1; JP3819325B2; CN1469079A; TWI221892B

Abstract

When a gas burner is operated to ignite, a gas control device having an annular fire power adjustment dial installed around an ON/OFF button is moved together with the press-in operation of the ON/OFF button to force the fire power adjustment dial to rotate toward the strong fire side, which may, in the valve-opening position, adversely affect the operability of the fire power adjustment dial for the operator. The gas control device of this invention can perform an ignition operation by a press-in operation of an ON/OFF button (5) from a valve-closing position to a valve-opening position. A forcing rotation apparatus (51) is provided to be moved together with and force a fire power adjustment dial (7) to rotate in order to enable the fire power of the gas burner to become a predetermined fire power. The forcing rotation is ended before the ON/OFF button reaches the valve-opening position. In addition, in the valve-opening position, the retention between the ON/OFF button and the fire power adjustment dial due to the forcing rotation apparatus can be released.

Description

Controller for gas

Technical field

The present invention relates to subtend and for example be arranged on the controller for gas that the gas burner supply fuel gas in the gas-cooker is controlled.

Background technology

This type of controller for gas is for example known to be disclosed by No. 2742356 communique of Japan Patent.This device for example has fore-and-aft direction on the front panel that is arranged on gas-cooker and moves freely some fire button, on 3 different positions of the fore-and-aft direction of this fire button, be provided with will link to each other with gas burner blast tube keep open and drive valve position, make the igniter action of gas burner ignition location, close the pass valve position of blast tube.

In case closing valve position pressing operation point fire button, the some fire button moves to ignition location, when making blast tube open, make the ignition mechanism action of gas burner.When having confirmed that pushing of some fire button decontroled in gas burner igniting back, put then that fire button is outstanding to be moved towards driving valve position.

Driving valve position, the firepower of gas burner is regulated by the firepower adjusting knob that is arranged on fire button ring-type on every side and is undertaken.Firepower adjusting knob and flow regulator interlock, this flow regulator is arranged in the blast tube, by the aperture area that changes blast tube the gas flow of the fuel gas of supply gas burner is regulated.

Stop the occasion of gas burner, the some fire button that will be in out valve position is pressed into to be operated when moving it to the pass valve position, and then blast tube is closed, and gas burner is flame-out.

Here, during the gas burner ignition operation, in order reliably fuel gas to be lighted a fire, preferably the firepower that in the mixing tube of gas burner, provides fuel gas to make gas burner be in for example strong or in state.

Therefore, be provided with resetting means in the said apparatus, this resetting means is when putting out a fire to gas burner, and with the operations linkage that is pressed into of this fire button, the firepower that the firepower adjusting knob is rotated to forcibly gas burner is strong position.

Said apparatus is owing to being provided with resetting-mechanism, so at the pass of fire button valve position, the firepower adjusting knob can't rotate.

For this reason, following technical scheme is arranged.Promptly, during pressing operation point fire button, by for example using the pressure rotating mechanism of cam mechanism, to the firepower adjusting knob forcibly rotate so that the firepower of gas burner for strong or in, at the pass of fire button valve position, the firepower adjusting knob rotates freely.

But, if the pressure rotating mechanism only is set, is then driving valve position, rotating the occasion that the firepower adjusting knob carries out the firepower adjusting, in case the pressure rotating mechanism is a fastening state, then the operability variation of firepower adjusting knob brings harmful effect might for cooking person's rotary manipulation sense.

Summary of the invention

In view of this, the objective of the invention is to, provide a kind of valve position of opening to carry out the controller for gas that occasion that firepower regulates does not influence the rotary manipulation sense at gas burner.

In order to address the above problem, controller for gas of the present invention is to have at fore-and-aft direction to move freely some fire button, fore-and-aft direction at this fire button is provided with the pass valve position that the blast tube that links to each other with gas burner is closed, this blast tube is kept the open valve position of opening, be provided with the controller for gas that to regulate the ring-type firepower adjusting knob of firepower to the quantity delivered of the fuel gas of gas burner by regulating around this fire button, it is characterized in that, ignition operation constitutes by being pressed into operation of described some fire button and moves to out valve position from closing valve position, be provided with the pressure rotating mechanism in addition, so that with the operations linkage that is pressed into from described pass valve position to described some fire button driving valve position, described firepower adjusting knob is forcibly rotated the firepower that the firepower that makes gas burner becomes regulation, by this pressure rotating mechanism the pressure of firepower adjusting knob is rotated in a fire button and arrives and finish before driving valve position, remove by the some fire button of forcing rotating mechanism to cause and the snap-fit relationship between the firepower adjusting knob opening valve position.

Among the present invention, in order to carry out ignition operation, be pressed into the operating point fire button from closing valve position, then blast tube is open, and fuel gas flows to gas burner.In this occasion, by forcing rotating mechanism to make the firepower adjusting knob begin rotation.In case ignition operation finishes, then put fire button arrival and drive valve position.At this moment, the firepower adjusting knob has rotated to assigned position, and the opening that can keep blast tube.

Opening on the valve position of a fire button, when the firepower adjusting knob is rotated, then increase and decrease the firepower of the gas flow adjustable fuel gas burner of the fuel gas of supplying with gas burner.In this occasion, be disengaged by the some fire button of forcing rotating mechanism to cause and the snap-fit relationship between the firepower adjusting knob, so can not damage the operability of firepower adjusting knob, can not bring harmful effect to cooking person's rotary manipulation sense.

For gas burner is put out a fire, the operating point fire button makes it move to the pass valve position from driving valve position, and then blast tube is closed, and stops to supply with fuel gas to gas burner.

Here, described pressure rotating mechanism, for example constitute by the protrusion sheet in the radial hole that under the state of the outside application of force, is contained in the outer peripheral face that is arranged on a fire button, the cam path that is arranged on the inner peripheral surface of firepower adjusting knob, along with a fire button moves to out valve position from closing valve position, the protrusion sheet is accommodated in the described hole and is left cam path, driving valve position, do not engaging with cam path as long as protrude sheet.

As mentioned above, controller for gas of the present invention does not damage the operability of firepower adjusting knob, plays the rotary manipulation sense that can prevent cooking person and brings dysgenic effect.

The accompanying drawing simple declaration

Fig. 1 is the stereogram that the gas-cooker of controller for gas of the present invention is equipped with in expression.

Fig. 2 is the cutaway view that expression is in the controller for gas of the present invention that closes valve position.

Fig. 3 (a) is that the explanation gas burner is in the figure of the occasion of weak fire with respect to the position of the firepower adjusting knob of a fire button.(b) be the figure of the position of the rotary body of the occasion of fire a little less than the explanation gas burner is in.

Fig. 4 is the exploded perspective view of explanation point fire button and firepower adjusting knob structure.

Fig. 5 (a) to (d) is that the 1st of explanation point fire button protrudes the figure of sheet with respect to the position of firepower adjusting knob.

Fig. 6 (a) to (e) is explanation at the position of rotation of the rotary body of driving valve position, and protrudes the figure of the position of sheet with respect to the 2nd of firepower adjusting knob.

The key diagram of the pressure rotation of the firepower adjusting knob when Fig. 7 is ignition operation.

Fig. 8 is the cutaway view that expression is in the controller for gas of the present invention of ignition location.

Fig. 9 is the cutaway view that expression is in out the controller for gas of the present invention of valve position.

Figure 10 (a) is the figure with respect to the position of the firepower adjusting knob of a fire button of the gas burner occasion that is in strong fire.(b) be the figure that the explanation gas burner is in the position of the rotary body that closes in the strong scene of a fire.

Figure 11 (a) is the figure with respect to the position of the firepower adjusting knob of a fire button of the gas burner occasion that is in moderate heat.(b) be the figure of position that the explanation gas burner is in the rotary body of moderate heat occasion.

Figure 12 (a) is the figure with respect to the position of the firepower adjusting knob of a fire button of the gas burner occasion that is in little fire.(b) be the figure that the explanation gas burner is in the position of the rotary body that closes in the little scene of a fire.

The figure of the variation of the pressure rotation of the firepower adjusting knob when Figure 13 is the explanation ignition operation.

The specific embodiment

With reference to Fig. 1, controller for gas 1 for example is assembled in the gas-cooker 2.In this occasion, gas-cooker 2 has the stove 21 of box-shaped, is provided with 2

gas burner

23a, 23b in stove 21, and this gas burner is right with 2 opening surfaces that are arranged on the panel 22 that covers above the stove 21.

Also be provided with barrier 25 in the stove 21, it also is provided with ceramic board-like gas burner (not shown) between the front panel 24 at the two ends of the front that is arranged on stove 21.And, can pass through controller for gas 1 of the present invention, the supply of the fuel gas of 2

gas burner

23a, 23b and ceramic board-like gas burner is controlled.

With reference to Fig. 2, controller for gas 1 has by 2 valve shells that

part

11a, 11b constitute of overlapping connection up and down.Be provided with the 1st inner passage 12a that extends along the length direction of valve shell at the part 1 11a of the valve shell that is positioned at downside, offer the combustion gas inflow portion 13 that is communicated with the 1st inner passage 12a.

Be positioned at the downstream of combustion gas inflow portion 13, in the 1st inner passage 12a, be provided with magnetic valve 3.Magnetic valve 3 has magnet shell 31, contains in this magnet shell 31 according to for example carrying out excitatory electromagnet from the signal of the control module that is arranged on stove 21 (not shown) and by the absorption sheet of its absorption.

Be connected with from magnet shell 31 to the 1st outstanding valve body 32 of the downstream of the 1st inner passage 12a on the absorption sheet.Under magnetic valve 3 close valve states, the application of force of the spring of establishing by contracting between the 1st valve body 32 and magnet shell 31 33 and by encapsulant 34a is taken a seat on the valve seat of the valve seat member 34 in being arranged on the 1st inner passage 12a the 1st valve body 32.

The valve operation of opening of this magnetic valve 3 is undertaken by action bars 4, and this action bars is inserted in the 1st inner passage 12a by encapsulant 41, moves forward and backward freely along the length direction of the 1st inner passage 12a.In addition, in that being set on the action bars 4, the valve seat 43 of the 2nd valve body 42, the 2 valve bodies 42 in being arranged on the 1st inner passage 12a constitute main valve.Under the main valve close valve state, the spring 44 that the 2nd valve body 42 is located at by contracting between the 2nd valve body 42 and the valve seat member 34 is taken a seat on valve seat 43.

(with reference to Fig. 1) carried out in moving through from the operation that is pressed into of the front panel 24 outstanding some fire buttons 5 that are provided with of the fore-and-aft direction of action bars 4.Point fire button 5 forms cylindric, and along with moving of a fire button 5, the pressing lever 5a that action bars 4 is pushed is connected with the end face of the 1st inner passage 12a side.

In addition, the end of pressing lever 5a is connected with the heart type cam mechanism 5b of the downside that is arranged on part 1 11a.In this occasion, for outstanding from the front end face of firepower adjusting knob described later and carry out ignition operation and when being pressed into operating point fire button 5 from the pass valve position (state shown in Figure 1) of closing the 1st inner passage 12a, then action bars 4 is by (right side of Fig. 2) pushing towards the rear of pressing lever 5a quilt, thereby after opening main valve, when valve body 32 was pushed away absorption sheet side, move to the ignition location that moves as the discharge cell (not shown) of igniter.

When ignition location is decontroled the pushing an of fire button 5, then by heart type cam mechanism 5b guiding forwards (left side of Fig. 2) move, main valve is kept opening valve, and arrives and make the 1st inner passage 12a become the valve position of opening of open state.For the operation of putting out a fire, when driving valve position and further be pressed into operating point fire button 5, then heart type cam mechanism 5b is reset and returns the fire extinguishing position.

In addition, be positioned at the upstream side of main valve, be provided with gas flow outlet 14 in part 1 11a, this combustion gas outflow 14 is consistent with the end of the 2nd inner passage 12b that roughly is the L font that is arranged on part 2 11b, and each

inner passage

12a, 12b of the 1st and the 2nd constitute blast tube.

At the outer peripheral face of part 2 11b, interval in accordance with regulations separately and mutually is provided with the 1st, the 2nd, the 3rd, the 4th 4

communication channel

15a, 15b, 15c, 15d isolatedly.By each

communication channel

15a, 15b, 15c, 15d, the combustion gas outflow portion 16 that is connected with the top of part 2 11b is communicated with the 2nd inner passage 12b.In this occasion, the aperture of each

communication channel

15a, 15b, 15c, 15d increases successively towards the place ahead.

Then, the fuel gas that flows out from combustion gas outflow portion 16 offers the gas nozzle (not shown) of burner oil gas in each mixing tube of

gas burner

23a, 23b and ceramic board-like gas burner.In this occasion,, in the 2nd inner passage 12b, be provided with flow control valve 6 in order to regulate the gas quantity of the fuel gas of supplying with gas nozzle.

As shown in Figures 2 and 3, flow control valve 6 has by encapsulant 61a rotation and is arranged on columnar rotary body 61 in the 2nd inner passage 12b freely.Form the 1st, the 2nd, the 3rd, the 4th each

elongated slot

62a, 62b, 62c, 62d of the 4 piece circumferencial directions corresponding respectively with the 1st, the 2nd, the 3rd, the 4th each

communication channel

15a, 15b, 15c, 15d at the outer peripheral face of rotary body 61.In this occasion, the width dimensions of each

elongated slot

62a, 62b, 62c, 62d is consistent with the aperture of each

communication channel

15a, 15b, 15c, 15d respectively and form at circumferencial direction with staggering.

And, in this example, with orifice plate member 63 and each

communication channel

15a, 15b, 15c, 15d are consistent and be installed on the outer peripheral face of part 2 11b, and the gas flow that is formed with the fuel gas that will flow to combustion gas outflow portion 16 by each

communication channel

15a, 15b, 15c, 15d on the orifice plate member 63 is adjusted to 4

aperture

63a, 63b, 63c, the 63d of ormal weight.Then, make rotary body 61 rotation, each

elongated slot

62a, 62b, 62c, 62d and each

communication channel

15a, 15b, 15c, 15d is suitably consistent, make the gas flow of the fuel gas that flows to combustion gas outflow portion 16 adjusted.

The adjusting of the anglec of rotation of rotary body 61 is undertaken by the firepower adjusting knob 7 on every side that is arranged on a fire button 5.As shown in Figure 4, firepower adjusting knob 7 is on the base portion 70a by the hollow cylinder shape cover 70b of ring-type to be installed and to constitute.

The end pitch in accordance with regulations of the 1st inner passage 11a side of firepower adjusting knob 7 is provided with cutting, and this cutting part 71 is with gear 72 engagements chimeric with an end of the rotary body of giving prominence to from part 2 11b 61.Thus, the rotary body 61 and the rotary manipulation of firepower adjusting knob 7 are synchronously rotated.

Here, when

gas burner

23a, 23b ignition operation, for reliably to fuel gas igniting, preferably to

gas burner

23a, 23b supply with fuel gas make the firepower of

gas burner

23a, 23b for example become strong or in.

In addition, consider security, make the discharge cell action in order not make mistake touch point fire button 5 such as child, so-called child's locking mechanism can be set.

With reference to Fig. 2 to Fig. 6, in this example, from the place ahead of the outstanding firepower adjusting knob 7 of front panel 24 to inner peripheral surface when forming cam path 73, the firepower adjusting knob 7 of hollow in, on the outer peripheral face of the some fire button 5 that fore-and-aft direction moves, be provided with and constitute the right the 1st with cam path 73 and protrude sheet 51 to constitute the pressure rotating mechanism.In this occasion, the 1st protrudes sheet 51 is being installed in the radial hole 52 of the outer peripheral face that is arranged on a fire button under the state of the radial outside application of force by spring 53.

Thus, for the igniting of

gas burner

23a, 23b, from closing valve position will put fire button 5 and be pressed into operation the time, then the 1st protrudes sheet 51 and becomes driving link, will be formed with the position that rotates to regulation as the firepower adjusting knob 7 of the cam path 73 of driven member.

In this occasion, owing to utilize the operation that is pressed into of some fire button 5 that firepower adjusting knob 7 is rotated,, can make simplifying the structure of controller for gas so for example do not need that increasing contracts and be located at the application of force of the spring 17 between a fire button 5 and the part 1 11a.

But, driving valve position, firepower adjusting knob 7 is rotated to regulate the occasion of firepower, interfere with cam path 73 as protruding sheet 51, then the operability variation of firepower adjusting knob 7 might be brought harmful effect to cooking person's rotary manipulation sense.

In this example, the operation that is pressed into that the wall face height of cam path 73 forms along with a fire button 5 reduces from a side towards the opposing party.From close valve position carry out a fire button 5 be pressed into operation the time, then along with the moving an of fire button 5, the 1st protrudes sheet 51 accommodates in the above-mentioned hole 52, arrives from cam path 73 to par 74 that length direction extends.

If further when being pressed into operating point fire button 5, then being housed in the 1st in the above-mentioned hole 52 and protruding

sheet

51 and 74 move and arrive ignition location along the par.Then, make discharge cell action, after gas burner 23a, the 23b igniting,, then put fire button 5 and under the application of force of spring 5c, return slightly to arrive and drive valve position by heart type cam mechanism 5b guiding if remove pushing of some fire button 5.

With to drive valve position corresponding, form and 74 conplane rotations guiding roads 75, par at the inner peripheral surface of firepower adjusting knob 7, firepower adjusting knob 7 is along rotation guiding road 75 to clockwise direction or rotation counterclockwise freely.In this occasion, the 1st protrudes sheet 51 is housed in the hole 52 fully, does not engage with cam path 73.

Thus, with protrude sheet 51 and cam path 73 from closing valve position to the 1st of the operations linkage that is pressed into of the some fire button 5 of driving valve position, force the pressure rotation of rotating mechanism by this to firepower adjusting knob 7, before arriving ignition location, finishes a fire button 5 snap-fit relationship between the cam path 73 of the protrusion sheet 51 of opening valve position releasing point fire button 5 and firepower adjusting knob 7.

Then, rotation rotary body 61 makes firepower adjusting knob 7 when clockwise direction is rotated, and gas flow is reduced, and when counter clockwise direction was rotated, gas flow increased.

In this occasion, because the rotating range to firepower adjusting knob 7 limits, in case will be arranged on firepower adjusting knob 7 base portion 70a periphery wall protuberance (not shown) towards rotation counterclockwise up to be arranged on stove 21 on brake component (not shown) engage till, it is consistent with the 2nd, the 3rd and the 4th each

communication channel

15b, 15c, 15d respectively rotary body 61 to be configured to the 2nd, the 3rd and the 4th each

elongated slot

62b, 62c, 62d, makes the gas quantity maximum that flows to combustion gas outflow portion 16.

On the other hand, on only the 1st elongated slot 62a and the 1st communication channel 15a consistent location, the rotation brake spare 76 that will contact with the protuberance 56 on the end that is arranged on a fire button 5 is arranged in the rotation guiding road 75 (with reference to Fig. 6).

Thus, driving valve position, firepower adjusting knob 7, only the gas flow that flows to combustion gas outflow portion 16 for the firepower of

hour gas burner

23a, 23b be little little firepower, with the firepower of the gas flow that is flowing to combustion gas outflow portion 16

gas burner

23a, 23b when maximum be in the firepower adjustable range between the strong strong firepower rotation freely, an end in rotation guiding road 75 and rotation brake spare 76 formation rotating range limiting mechanisms.

At this, for carrying out firepower easily, cooking person regulates, and for example also can be that card tower sound is sent in the position in weak the reaching at the firepower of

gas burner

23a, 23b.

As shown in Figure 3, protrude sheet 51 with respect to the 1st, be provided with the 2nd at the outer peripheral face of a fire button 5 and protrude sheet 54.This occasion than the 2nd little protrusion sheet 54 of the 1st protrusion sheet 51 diameters, is being installed in the radial hole 55 of the outer peripheral face that is arranged on a fire button 5 under the state of the radial outside application of force by spring 56.

In addition, only on the assigned position in rotation guiding road 75, form respectively and can protrude radially the 1st and the

2nd recess

77,78 that sheet 54 engages with the 2nd.And, for example, with firepower adjusting knob 7 from minimum discharge (in this occasion, the firepower of

gas burner

23a, 23b is little) in case towards counterclockwise be rotated, when the 2nd protrusion sheet 54 engages with the 1st recess 77 then send card tower sound.In this occasion, except the 1st elongated slot 62a, the 2nd elongated slot 62b is consistent with the 2nd communication channel 15b, has increased the gas flow that flows to combustion gas outflow portion 16, and

gas burner

23a, 23b burn down.

Further with firepower adjusting knob 7 towards rotation counterclockwise, in case when the 2nd recess 78 engages with the 2nd protrusion sheet 54, then send card tower sound.In this occasion, except the 1st and the 2nd

elongated slot

62a, 62b, the 3rd elongated slot 62c is consistent with the 3rd communication channel 15c, increases the gas flow that flows to combustion gas outflow portion 16, during the firepower of

gas burner

23a, 23b becomes.

In addition, form cam path 73, so that at the pass of a fire button 5 valve position, firepower adjusting knob 7 can be rotated to clockwise direction in the scope that surpasses the firepower adjusting.Surpass after the firepower adjustable range when firepower adjusting knob 7 rotated to an end of cam path 73, then the 1st protrudes sheet 51 and engages with the rectangular wall 73a of direction that pushes with respect to the action button 5 that forms on an end of cam path 73.

Thus, needn't be because of the other setting operation portion of child's locking mechanism, push also towards ignition location and can not move from closing valve position even will put fire button 5, form the latched position that the ignition mechanism of gas burner no longer moves.

Below, utilize gas burner 23a that the action of controller for gas 1 of the present invention is described.Be pressed into operating point fire button 5 from pass valve position shown in Figure 2, then make 7 rotations of firepower adjusting knob by the 1st effect of protruding sheet 51 and cam path 73.

Here, the firepower that Fig. 7 is illustrated in gas burner 23a be on the weak position flame-out after, operating point fire button 5 is with the action example of the firepower adjusting knob 7 of the occasion of carrying out ignition operation.

When being pressed into operating point fire button 5, then the protrusion sheet 51 of action button 5 and cam path 73 butts.During with cam path 73 butts, then move 7 rotations of firepower adjusting knob along with a fire button 5.Thus, the 1st protrudes sheet 51 limits accommodates in the above-mentioned hole 52, and the limit arrives from the par 74 of cam path 73 to the length direction extension.

In this occasion, rotary body 61 is by gear 72 rotations, in this position, 1st, each

elongated slot

62b, 62c of the 2nd and the 3rd, 62d are consistent with the 1st, the 2nd and the 3rd each

communication channel

15b, 15c, 15d respectively, and the fuel gas of the gas flow of the firepower that makes gas burner 23a in being flows to combustion gas outflow portion 16 (with reference to Fig. 6 (d) and Figure 11).

When being pressed into of continuation point fire button 5 operated, then as shown in Figure 8, make main valve drive valve to pushing towards the rear action bars 4 by pressing lever 5a, valve body 32 is pushed away absorption sheet side arrived ignition location.

After arriving ignition location, gas burner 23a is carried out ignition operation by discharge cell.Then, when the flame detecting element 26 (with reference to Fig. 1) on being arranged on gas burner 23a limit detected the flame of gas burner 23a, then magnetic valve 3 was undertaken excitatory by the signal from the control unit and keeps opening the valve state.

In case when having confirmed that pushing of some fire button 5 removed in gas burner 23a igniting later on, then put fire button 5 and arrive the valve position of opening shown in Figure 9 by heart type cam mechanism 5b guiding.Driving valve position, when main valve kept out valve under the pushing effect of action bars 4, firepower adjusting knob 7 rotated freely in the firepower adjustable range.

And, in order to strengthen the firepower of gas burner, from the moderate heat position, with be arranged on firepower adjusting knob 7 base portion 70a periphery wall protuberance towards rotation counterclockwise up to be arranged on stove 21 on brake component engage till, then each

elongated slot

62b, 62c of the 2nd, the 3rd and the 4th, 62d are consistent with the 2nd, the 3rd and the 4th each

communication channel

15b, 15c, 15d respectively, and the firepower that makes gas burner 23a is that the fuel gas of strong gas flow flows to combustion gas outflow portion 16 (with reference to Fig. 6 (e) and Figure 10).

On the other hand, in order to reduce the firepower of gas burner 23a from moderate heat, with firepower adjusting knob 7 rotation toward the clockwise direction again, up to the 2nd protrude sheet 54 engage with the 1st recess 77 send card tower sound till, then each

elongated slot

62a, 62b of the 1st and the 2nd are consistent with each

communication channel

15a, 15b of the 1st and the 2nd respectively, and the firepower that makes gas burner 23a is that the fuel gas of weak gas flow flows to combustion gas outflow portion 16 (with reference to Fig. 6 (c) and Fig. 3).

Then, firepower adjusting knob 7 rotated toward the clockwise direction up to the 1st protrude sheet 51 and till rotation brake spare 76 contacts, then only the 1st elongated slot 62a is consistent with the 1st communication channel 15a, and the firepower that makes gas burner 23a is that the fuel gas of little minimum gas flow flows to combustion gas outflow portion 16 (with reference to Fig. 6 (b) and Figure 12).

With the occasion of gas burner 23a fire extinguishing, in the time of will putting fire button 5 and rearward be pressed into operation from driving valve position, then heart type cam mechanism b resets, point fire button 5 is subjected to the application of force of spring 5c, retreats the pass valve position of giving prominence to from firepower adjusting knob shown in Figure 27.

In this occasion, removed the action bars 4 that pressing lever 5a pushes, be subjected to the application of force of spring 34 and rearward move, close main valve.In case when main valve is closed, then the supply of the fuel gas of gas burner 23a is stopped and putting out a fire.When control module recognizes that by flame detecting element 26 flame has extinguished, then close valve magnetic valve 3.

At last, closing valve position, firepower adjusting knob 7 is surpassed the firepower adjustable range and when clockwise direction rotate along cam path 73, then the 1st protrudes sheet 51 and engages with the 73a of wall portion of cam path 73, puts fire button 5 can not push, and becomes child's lock-out state.

In this example, be pressed into the occasion that operating point fire button 5 carries out ignition operation, be the position in becoming by the firepower of forcing rotating mechanism to make firepower adjusting knob 7 rotate to

gas burner

23a, 23b, but be not limited thereto.

For example, shown in Figure 13 (a), also can constitute cam path 73, the firepower that makes firepower adjusting knob 7 rotate to

gas burner

23a, 23b becomes strong position.

In addition, also can be shown in Figure 13 (b), just to

gas burner

23a, 23b carried out when flame-out, firepower adjusting knob 7 is in the occasion that firepower is strong position, when carrying out next ignition operation, can directly under this state, carry out ignition operation, only the position in being than firepower near little firepower side to the occasion that

gas burner

23a, 23b stop working, the position of the firepower that makes firepower adjusting knob 7 rotate to

gas burner

23a, 23b in being.

Claims

1. controller for gas, have at fore-and-aft direction and move freely some fire button, be provided with pass valve position that the blast tube that links to each other with gas burner is closed, this blast tube is kept the open valve position of opening at the fore-and-aft direction of this fire button, be provided with the firepower adjusting knob that to regulate firepower to the quantity delivered of the fuel gas of gas burner by regulating around this fire button, it is characterized in that

Ignition operation constitutes by being pressed into operation of described some fire button and moves to out valve position from closing valve position,

Be provided with the pressure rotating mechanism in addition, so that with the operations linkage that is pressed into from described pass valve position to described some fire button driving valve position, described firepower adjusting knob is forcibly rotated the firepower that the firepower that makes gas burner becomes regulation, by this pressure rotating mechanism the pressure of firepower adjusting knob is rotated in a fire button and arrives and finish before driving valve position, remove by the some fire button of forcing rotating mechanism to cause and the snap-fit relationship between the firepower adjusting knob opening valve position.

2. controller for gas according to claim 1, it is characterized in that, described pressure rotating mechanism by in the radial hole that under the state of the outside application of force, is contained in the outer peripheral face that is arranged on a fire button and the protrusion sheet of outstanding this radial hole, the cam path that is arranged on the inner peripheral surface of firepower adjusting knob constitute, along with a fire button moves to out valve position from closing valve position, the protrusion sheet is withdrawn in the described hole and leaves cam path, driving valve position, protruding sheet and do not engage with cam path.