JPH0138458Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an operating device for a stop-start instantaneous gas water heater that enables ignition, hot water dispensing, extinguishing, and stopping hot water dispensing by simply pushing a single dual operation button.

As a stop-type instantaneous gas water heater that ignites, dispenses hot water, extinguishes, and stops dispensing hot water using push-button operation buttons, an ignition operation button 1'' and an extinguishing operation button 2'' are provided separately, and a hot water faucet lever 3'' is provided. A device equipped with this has already been proposed (see Figure 1).
However, by pressing the ignition operation button 1'', the pilot is ignited, and then by opening the hot water faucet lever 3'', the water pressure response device is activated, the main burner is ignited, hot water is dispensed, and the hot water faucet is opened. By closing the lever 3'', the main burner is extinguished and hot water is stopped, and when the water boiler is no longer used, the pilot extinguishes the fire by pressing the extinguishing operation button 2''. Therefore, ignition, dispensing, extinguishing, and stopping the dispensing of hot water require the operation of two operation buttons 1'' and 2'' and the faucet lever 3'', which has the drawback of being cumbersome to operate and prone to many erroneous operations.

This invention provides an operating device for a stop-type instantaneous gas water heater that aims to eliminate such drawbacks.
Its configuration is equipped with an electromagnetic safety valve and a device stopper in the gas supply path upstream of the hydraulic automatic gas valve of the hydraulic response device, and a diaphragm-type on-off valve in the water supply channel upstream of the primary chamber of the diaphragm chamber of the hydraulic response device. In a stop-start type instantaneous gas water heater, the stroke regulating device has a single double-operation button that moves forward and backward at a predetermined constant rate, and the above-mentioned electromagnetic safety valve, appliance plug, ignition, and extinguishing are controlled by the forward and backward movement of the operation button. This invention relates to an operating device for a stop-start type instantaneous gas water heater, which is characterized by being provided with a mechanical interlocking device that interlocks the opening and closing of a switch and a diaphragm type on-off valve.

One embodiment will be described in detail below based on the drawings. In the drawings, A is a hydraulic response device, and a gas passage 1a to the main burner E communicating with the gas supply passage 1 is shown.
A hydraulic automatic gas valve V ₁ is installed in the valve chamber 13 provided in the valve chamber 13 facing the valve seat 14, and the hydraulic automatic gas valve
A valve shaft 16 is attached to the secondary chamber 2b side of the diaphragm 15 stretched in the diaphragm chamber 2 with V ₁ provided in the water supply channel 3.
A water governor valve _V5 is connected to the valve chamber 17, which is connected to the valve chamber 17 via the valve seat 18 and adjacent to the primary chamber 2a side.
The water governor valve V ₅ is connected to the primary chamber 2a side of the diaphragm 15 via the valve shaft 19, and the hydraulic automatic gas valve V ₁ is biased in the closing direction by the spring 20. , the diaphragm 15 is _biased in the leftward movement direction as shown in FIG.
The amount of gas supplied to the heat exchanger F is automatically controlled in proportion to the amount of water supplied to the heat exchanger F, and when the water supply is interrupted, the gas supply to the main burner E is also controlled. There is. The spring 20 of the hydraulic automatic gas valve V ₁ is made stronger than the spring 21 of the diaphragm 15 to ensure reliable opening and closing operations of the hydraulic automatic gas valve V ₁ . V ₂ is an electromagnetic safety valve,
The hydraulic automatic gas valve V ₁ of the hydraulic response device A is installed in a valve chamber 22 provided in the gas supply path 1 on the upstream side of the valve seat 23 of the hydraulic automatic gas valve V 1 so as to face the valve seat 23 thereof, and is biased in the closing direction by a spring 24 . A suction iron piece 26 is integrally provided through the electromagnet M, and the suction iron piece 26 is disposed opposite to the suction surface of the electromagnet M. The electromagnetic coil of the electromagnet M includes a capacitor of a quick start device (not shown) that instantaneously excite the electromagnet M at the time of initial ignition, and a thermocouple that continuously excite the electromagnet M by thermoelectromotive current after ignition. TC is connected and ignition is normal,
During combustion, the electromagnetic safety valve _V2 is held open via the adsorption iron piece 26, and in the event of ignition failure or other abnormal combustion, the current to the electromagnet M is cut off and the electromagnetic safety valve _V2 is immediately closed to ensure safety. There is. The above quick start device includes a DC power supply, a capacitor,
The circuit consists of a combination of an igniter, a thermocouple, an electromagnetic coil of an electromagnet M, etc., and operates a double switch _S1 incorporating a quick switch and an igniter switch in conjunction with the push operation of the operation button 4, which will be described later, to discharge a capacitor with the quick switch. In addition to switching to the charging circuit, the igniter is started and stopped by turning the igniter switch on and off. Reference numeral V ₃ denotes a device stopper, which is installed in a valve chamber 27 adjacent to the valve chamber 22 of the electromagnetic safety valve V ₂ so as to face its valve seat 28, and has an operating body 29 that is linked to the push operation of the operating button 4, which will be described later. The extension shaft 31 of the valve shaft 30 is connected to the electromagnetic safety valve V ₂ so that both valves V ₂ ,
The opening operation of _V3 is now linked. 32
is a spring for automatically returning the operating body 29, and biases the device stopper _V3 in the closing direction. B is a diaphragm type on-off valve, which is connected to the water supply channel 3 on the upstream side of the primary chamber 2a of the diaphragm chamber 2 of the hydraulic response device A.
A diaphragm valve V ₆ stretched in a diaphragm chamber 33 provided in the diaphragm chamber 33 can be moved into and out of contact with the valve seat 34, and a valve hole 3 is bored in the center of the diaphragm valve V ₆ .
A needle valve V ₄ biased in the closing direction by a spring 36 is disposed opposite to the diaphragm valve V 5 , and several water holes 37 are bored around the periphery of the diaphragm valve V ₆ . ₄ moves to the left in the drawing due to the pressing force of the spring 36, the needle valve _V4 closes the valve hole 35, and the diaphragm valve _V6 is connected to the pressing force and the water pressure flowing into the diaphragm valve chamber 33 from the water passage hole 37. Press the valve seat 34 in the left direction as shown in the figure to close the water supply channel 3 and close the needle valve.
When V ₄ is moved to the right in the figure against the spring 36, the needle valve V ₄ separates from the valve hole 35 and opens the valve hole 35, so the water pressure in the diaphragm valve chamber 33 suddenly decreases and the water pressure in the water supply inlet 3a side The pressure difference causes the diaphragm valve _V6 to separate from its valve seat 34, opening the water supply channel 3 and starting to supply water to the heat exchanger F. 38 is the valve stem of the needle valve _V4 .
In addition, 4 moves forward by a certain stroke a with the first push operation and is in the ignition state (see Figure 11).
Then, when the pressing force is released, a constant stroke b
When the push button is pressed for the second time, it moves forward by a certain stroke b' from the locked position, and the lock is released.
A single double operation button controlled by an arbitrary stroke regulating device C so as to move back by a' and return to the original position to extinguish the fire (see Fig. 11). 10th
Use something like the one shown in the figure. That is, the press rod 6 provided integrally with the operation button 4 is slidably inserted into the cylinder body 40 having the mounting seat 39, and the guide rod 41, which is integral with the cylinder body 40, is inserted into the guide groove 42 formed in the operation button 4. and the cylindrical body 4
A spring 43 is installed between the mounting seat 39 of 0 and the operation button 4.
interposed so that the operating button 4 automatically returns together with the pressing rod 6 integrated with the operating button 4,
A control groove d is bored in the front end surface of the pressing rod 6 to restrict the operation button 4 to the backward strokes a, b, a', b', and a control groove d made of elastic wire or the like is formed in the cylinder 40. The control protrusion 44 is attached so that it can freely swing from side to side, and the control protrusion 44 is fitted into the control groove d through the window hole 45 so that it can slide freely.
When the operation button 4 is pushed forward for the first time by a certain stroke a against the spring 43,
The control protrusion 44, which was engaged at the extinguishing position _d1 of the control groove d, passes through one of the passage grooves _d2 and reaches the ignition position _d3 , where it is pressed (from the solid line state in Fig. 10 to the state shown in Fig. 8). (See solid line). Thereafter, when the pressing force is released, the operating button 4 moves back by a certain stroke b along with the pressing rod 6 due to the elastic force of the spring 43. At this time, the control protrusion 44 passes through the passage groove _d4 of the control groove d, reaches the combustion position _d5 , is engaged and held at this position, and locks the operating button 4 at the combustion position _d5 (as indicated by the solid line in FIG. 8). (Refer to the solid line state in Figure 9 for the state). Next, when the operating button 4 is pushed forward for the second time by a certain stroke b' against the spring 43, the control protrusion 44 passes through the passage groove _d6 of the control groove d and temporarily returns to the stop position _d7. At this point, pressing is stopped. After that, when the pressing force is released, the operation button 4 moves to the pressing rod 6.
At the same time, the elastic force of the spring 43 makes a constant stroke.
Move back by a′. At this time, the control protrusion 44 passes through the passage groove _d6 of the control groove d, reaches its original position, that is, the extinguishing position _d1 , and is held engaged, thereby returning the operating button 4 to its original position. (See Figure 10). Furthermore, D is a mechanical interlocking device for interlocking the operation button 4, the appliance plug _V3 , and the diaphragm type on-off valve B, and in FIGS. 4 to 7, the machine frame G
The tip of the pressing rod 6 of the stroke regulating device C is brought into contact with the drive piece 5a of the operating arm 5 which is pivoted on one side so as to be rotatable back and forth by a pivot 45, and
On one side of the actuating piece 5b is an appliance tap actuating shaft 7 biased by a spring 46 in the direction of closing the appliance tap _V3 , and on the other side of the actuating piece 5b are switches for ignition and extinguishing.
That is, a double type ignition switch _S1 incorporating a quick switch and an igniter switch and a short circuit switch _S2 are brought into contact with each other to control the predetermined forward and backward strokes a, b, and a' of the operation button 4.
By reciprocating the operating arm 5 by b', the electromagnetic safety valve V ₂ and the appliance plug V ₃ can be opened and closed, and the switches S ₁ and S ₂ can be turned on and off. Note that the instrument stopper operating shaft 7 has been eliminated and the shaft 29 of the operating body 29 has been replaced.
Of course, a may be directly associated with the actuating piece 5b. Further, the operating arm 5 is connected to an operating shaft 11 of a diaphragm type on-off valve B, which controls the reciprocating rotational movement of the operating arm 5.
It is associated with an interlocking mechanism that transmits transmission instead of forward and backward movement. The interlocking mechanism urges the passive frame 8 on the other side of the machine frame G to automatically return to its original position by a torsion spring 47, and pivots it by a pivot 48 so that it can be freely raised and rotated within a certain angular range. A hook rod 9 is provided on the passive frame 8 and has an engaging hook 9a at the tip.
The pivot 50 is biased in a certain direction (inclination direction) by the spring 49 and can be rotated freely.
The passive frame 8 is connected to the operating arm 5 via the connecting rod 10, and the needle is urged by a spring 51 in a direction to close the needle valve _V4 of the diaphragm type on-off valve B. The valve operating shaft 11 is provided with an engagement protrusion 12, and when the hook rod 9 is raised and rotated within a certain angle range together with the passive frame 8, the tip engagement hook 9a is engaged and disengaged from the engagement protrusion 12. The needle valve operating shaft 11 is moved backward by the tip engaging hook 9a and moved forward by the spring 51,
An operating arm 5 is reciprocally rotated in conjunction with the operating button 4 of the stroke regulating device C, and the operating arm 5 is connected to the operating shaft 7 of the instrument stopper V ₃ and the ignition switch S ₁ and the operating arm 5 is rotated back and forth. A mechanical interlocking device D is provided which is associated with an interlocking mechanism that transmits the movement to the operating shaft 11 of the diaphragm type on-off valve B in place of forward and backward movement.

It goes without saying that the needle valve operating shaft 11 may be omitted and the valve shaft 38 of the needle valve _V4 may be directly operated by the hook rod 9. 52 is a stopper when the hook rod 9 is raised. In addition, in Fig. 3, H is a gas governor device, and a hydraulic automatic gas valve V ₁
and the appliance tap V ₃ in the gas supply line 1. I is a capacity switching device, which is installed in the gas passage 1a to the main burner E, and by sliding the operating knob 53 left and right, slide valve _V7 is operated to increase or decrease the amount of gas supplied to the main burner E. It's getting old. J is a temperature control valve, which is installed in the water supply channel 3b downstream of the diaphragm chamber 2 of the hydraulic response device A. Rotating the temperature control valve shaft 54 activates the slide valve _V3 , thereby controlling the heat exchanger F. It is possible to increase or decrease the amount of water supplied to the temperature control valve by meshing a small gear 57 of a temperature control knob 56 fitted on the outside of the operation button 4 with a large gear 55 fixed to the temperature control valve shaft 54. The temperature can be adjusted by rotating the number 56. Reference numeral 58 denotes a bench lily portion provided on the downstream side 3b of the water supply channel 3, which communicates with the secondary chamber 2b of the diaphragm chamber 2 of the hydraulic response device A via a connecting pipe 59 having a slow valve _V9 . _P1 is a primary pilot burner, and gas is supplied and cut off by a valve _V10 provided on a valve shaft 30 of an appliance tap _V3 . P ₂ is a secondary pilot burner, V ₁₁ is a drain valve, 60 is a water supply pipe, 61 is a hot water faucet, and 62 is an outer shell of the vessel.

In the above configuration, the operation will be explained next. When not in use, that is, when extinguishing a fire, the hydraulic automatic gas valve V ₁ , the appliance tap V ₃ and the electromagnetic safety valve V ₂ are all in contact with their respective valve seats 14, 28 and 23. (See the solid line position in Figure 3). Therefore,
When the operating button 4 is pushed forward by a certain stroke a predetermined by the control groove d of the stroke regulating mechanism C in the first push operation for ignition, the operating arm 5 is pushed forward by the pressing rod 6 integrated with the operating button 4. Push the driving piece 5a to connect the operating arm 5 and the passive frame 8 to the rod 1
0 at the same time in a fixed direction (clockwise in FIGS. 5 and 6, the same applies hereinafter), and the operating piece 5b of the operating arm 5 rotates the instrument stopper operating shaft 7.
is moved to the left in the drawing against the spring 46, and the instrument stopper is connected via the operating body 29 and valve shaft 30 connected thereto.
V ₃ is pushed away from its valve seat 28 against the spring 32, and the electromagnetic safety valve V ₂ is pushed away from its valve seat 23 by the extended valve shaft 31 of the appliance stopper V ₃ against the spring 24. Then, the attracting iron piece 26 is further pressed against the attracting surface of the electromagnet M. However, the appliance plug
Both V ₃ and electromagnetic safety valve V ₂ are opened, and
Since the primary pilot valve V ₁₀ is also opened, the gas from the gas inlet 1b is transferred to both pilot burners P ₁ ,
Supplied to P ₂ . And the operating piece 5b of the operating arm 5
Ignition and extinguishing switches related to _S1 ,
_S2 is also activated, switching the quick switch to the discharge circuit, exciting the electromagnet M with the current from the capacitor, instantly attracting the adsorbing iron piece 26, holding the electromagnetic safety valve _V2 in the open state, and shorting the short switch _S2.
Open the contacts and turn on the igniter switch to energize the igniter, blowing out the spark from the ignition plug, igniting both pilot burners _P1 and _P2 , and sending the pilot flame and thermocouple heating flame to the secondary pilot burner _P2 . The heating flame heats the thermocouple TC. At the same time, the hook rod 9 rotates clockwise together with the passive frame 8 and tilts forward, and its tip engagement hook 9a hits the front side of the engagement protrusion 12 of the needle valve operating shaft 11 (see the state shown by the solid line in Figure 6). ), by continuing to rotate, the hook rod 9 can be rotated counterclockwise against the spring 49, so that the engagement hook 9a is moved to the engagement protrusion 12.
(See the state indicated by the dotted line in Figure 6), and eventually the engaging hook 9a climbs over the engaging protrusion 12 and the engaging hook 9a
is engaged with the rear side of the engagement protrusion 12 (see the state indicated by the chain line in FIGS. 5 and 7). The above-mentioned engagement protrusion 12
The over-engaging operation of the engaging hook 9a with respect to the needle valve actuating shaft 11 is prevented from moving to the left in the figure by the stopper 11a, and the hook rod 9 is prevented from moving to the left in the drawing.
On the other hand, since the spring 49 is biased clockwise and rotatably supported, the operation is always carried out smoothly and reliably. By pushing the operation button 4 forward by a certain stroke a, the pilot ignition and the water supply standby operation (the engagement operation of the engagement hook 9a over the engagement protrusion 12) are instantaneously performed. The so-called ignition state (see FIGS. 8 and 11) is completed.

After that, when the pressing force on the operating button 4 is released, the operating button 4 moves back together with the pressing rod 6 by the elastic force of the spring 43 by a certain stroke b predetermined by the control groove d of the stroke regulating device C, and the operating button 4 is moved back. 4 is locked at the combustion position _d5 of the control groove d by the control protrusion 44 being engaged with the combustion position d5. Therefore, the operating arm 5 and the passive frame 8 are connected to the torsion spring 47.
Since the spring 46 rotates counterclockwise by a certain angle, the appliance plug operating shaft 7 moves to the right in the figure by a certain stroke due to the resilient force of the spring 46.
V ₃ is retracted by the elastic force of spring ₃₂ to the position shown by the chain line in FIG. , the electromagnetic safety valve _V2 is kept open by the electromagnet M, which is continuously excited by the thermoelectromotive current from the thermocouple TC. On the other hand, since the hook rod 9 also rotates by a certain angle counterclockwise together with the passive frame 8, when the hook rod 9 rotates counterclockwise, its tip engaging hook 9a engages the needle valve operating shaft 11.
is moved backward by pulling it by a certain stroke (see the state from the chain line to the solid line in Fig. 7). The backward movement of the needle valve actuating shaft 11 by the hook rod 9 is caused by the counterclockwise rotation of the passive frame 8 because the engaging hook 9a is engaged with the engaging protrusion 12.
When it follows this and rotates counterclockwise, its tip engaging hook 9a moves to a certain position while maintaining the engagement relationship with the engaging protrusion 12, so that the needle valve actuating shaft 11 is fired rearward. 51 and moves backward. And the backward stroke b of operation button 4
In between, the engagement relationship between the engagement protrusion 12 and the engagement hook 9a does not come off, and the needle valve operating shaft 11 is held at a constant retracted position. Therefore, the needle valve V ₄ of the diaphragm type on-off valve B moves backward in the right direction in the figure through its valve shaft 38 against the spring 36 to separate the needle valve V ₄ from the valve hole 35 and open the valve hole 35. As the diaphragm valve chamber 33 is opened, the water pressure in the diaphragm valve chamber 33 suddenly decreases, and the water supply pressure acting on its outer circumference causes the diaphragm valve to open.
In order to push V ₆ away from its valve seat 34 and open the water supply channel 3, water supply to the heat exchanger F is started. The water supply pressure causes the diaphragm 15 of the hydraulic response device A to move to the left in the figure.
The hydraulic automatic gas valve V ₁ connected to the main burner E via the valve shaft 16 is moved to the left and separated from the valve seat 14 to open the gas passage 1a to the main burner E, supplying gas to the main burner E and The pilot flame formed in the pilot burner _P2 ignites it and heats the heat exchanger F, thereby heating the water flowing through the heat exchanger F to raise its temperature and supplying hot water. Simultaneously with the hot water supply operation, the primary pilot valve _V10 is closed, the primary pilot burner _P1 is extinguished, the quick switch is switched to the charging circuit, and the igniter switch is turned off to stop the spark. When the operation button 4 is moved back by a certain stroke b, the water supply to the heat exchanger F and the ignition of the main burner E are instantaneously performed, and the so-called combustion state (see Figs. 9 and 11) is achieved. It is a transition.

The series of ignition and hot water dispensing operations described above can be accurately performed in one action by simply pressing and releasing the operating button 4 by a certain stroke a. If the ignition operation fails or abnormal combustion occurs, the heating of the thermocouple TC is stopped and the electromagnetic safety valve _V2 is automatically closed to ensure safety.

Next, when stopping hot water supply, press the operation button 4 for the second time to achieve a constant stroke predetermined by the control groove d of the stroke regulation mechanism C.
When pushed forward by b', the control protrusion 44 passes through the passage groove _d6 of the control groove d and reaches the passage groove _d8 , so the lock by the combustion position _d5 is released, and after that, when the pressing force is released, , operation button 4 is stroke regulating device C
The operating button 4 is moved back by the resilient force of the spring 43 together with the pressing rod 6 by a predetermined constant stroke a' by the control groove d, and the operating button 4 returns to its original position, that is, the extinguishing position. Therefore, since the operating arm 5 and the passive frame 8 are rotated counterclockwise by a certain angle by the elastic force of the torsion springs 47 and 46, the instrument plug operating shaft 7 is rotated by the operating piece 5b of the operating arm 5. The push to the left is released, and the elastic force of the spring 46 causes the device stopper operating shaft 7 to return to the rightmost position where its rightward movement is blocked by the stopper 7a. Therefore, the appliance tap V ₃ retreats until it touches its valve seat 28, closing the gas supply path 1, extinguishing the main burner F and stopping hot water supply, and closing the contact of the short-circuit switch S ₂ to turn off the electromagnet M. The electromagnetic coil is electrically short-circuited, the electromagnet M is demagnetized, the electromagnetic safety valve V ₂ is also reliably closed, and the secondary pilot burner P ₂ is also extinguished at the same time. On the other hand, the hook rod 9 also rotates counterclockwise by a certain angle together with the passive frame 8 and returns to its original position, so when the hook rod 9 rotates counterclockwise together with the passive frame 8 and stands up, 9
The other end of the hook rod 9 is in contact with the catch piece 52 and the hook rod 9 is
9, the engagement relationship between the tip engagement hook 9a and the engagement protrusion 12 is disengaged, and the needle valve operating shaft 11 is moved to the left as shown in the figure by the elastic force of the spring 51. It returns to the left limit position where its leftward movement is blocked by the stopper 11a. Therefore, the needle valve V ₄
Together with the elastic force of the spring 36, it moves to the left and presses against the valve hole 35 of the diaphragm valve V ₆ to close the valve hole 35, and at the same time, the pressing force presses the diaphragm valve V ₆ against the valve seat 34 and opens the water supply channel. 3, the water supply to heat exchanger F is also stopped.

The above-described series of extinguishing and hot water dispensing operations can be accurately performed in one action by simply pressing and releasing the operating button 4 by a certain stroke b'.

As explained above, this device uses an actuating arm 5 that reciprocates under the stroke controlled by a stroke regulating device by simply pushing a single dual-operation button to ignite, dispense hot water, extinguish, and stop dispensing hot water. Directly actuates appliance tap V ₃ and ignition switch S ₁ ,
Further, since the diaphragm type on-off valve B is constructed to operate via an interlocking mechanism, its operability is significantly improved and there is no possibility of erroneous operation. Therefore, the operating button and each gas valve and water supply valve are operated smoothly and reliably by a mechanical interlocking device consisting of an operating arm and an interlocking mechanism, which has the practical advantage of providing excellent usability.

[Brief explanation of drawings]

Fig. 1 is an overall front view of the conventional example, Fig. 2 is an overall front view showing an embodiment of this invention, Fig. 3 is a developed sectional view of the internal structure, Fig. 4 is a front view of the interlocking mechanism, and Fig. 5 is an overall front view of the conventional example. 7 to 7 are partially cutaway plan views of the operating state, and FIGS. 8 to 10 are plan views of the operating button stroke regulating mechanism, showing an example of the stroke regulating mechanism.
FIG. 11 is a diagram showing the forward and backward movement of the operation button. A...Hydraulic response device, V ₁ ...Hydraulic automatic gas valve,
1... Gas supply path, V ₂ ... Solenoid safety valve, V ₃ ...
Appliance stopper, 2...Diaphragm chamber, 2a...Primary chamber, 2b...Secondary chamber, 3...Water supply, B...Diaphragm type on-off valve, a...Forward stroke by the first push of the operation button , b... Same backward stroke, b'... Forward stroke due to second push operation, a'... Same backward stroke, 4
...Operation button, C...Stroke regulating device, 5
...Operating arm, 6...Pushing rod, 7...Instrument stopper operating shaft, _S1 ...Ignition switch, D...Mechanical interlocking device.

Claims (1)

[Scope of utility model registration request] The gas supply path 1 upstream of the hydraulic automatic gas valve V ₁ of the hydraulic response device A is equipped with an electromagnetic safety valve V ₂ and the appliance tap V ₃ , and the water supply channel is installed upstream of the primary chamber 2a of the diaphragm chamber 2 of the hydraulic response device A. 3 is a stop type instantaneous gas water heater equipped with a diaphragm type on-off valve B, which moves forward by a certain stroke a when the operation button 4 is pressed for the first time, and when the pressing force of the push button is released, the fixed stroke moves forward. It moves back by a distance b and is locked, and by the second push operation, it moves forward by a certain stroke b' from the locked position and is unlocked. When the pressing force of the push operation is released, it moves back by a certain stroke a' and returns to its original position. A stroke regulating device C for the operating button 4 that controls the operating button 4 to return to the position is provided, and an operating arm 5 that is rotated back and forth in conjunction with the operating button 4 of the stroke regulating device C; The operating shaft 7 of the appliance tap V ₃ and the ignition switch S ₁ are associated with an interlocking mechanism that converts the reciprocating rotational motion of the operating arm 5 into an advancing and retracting motion and transmits it to the operating shaft 11 of the diaphragm type on-off valve B. An operating device for a stop-type instantaneous gas water heater, which is provided with a mechanical interlocking device D.