JPH0142761Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention can ignite, dispense hot water, extinguish water, and stop dispensing hot water by simply pressing a single push button, and also sets the temperature control dial to the "water dispensing" position. The present invention relates to an operating device for a stop-start type water heater, which is capable of discharging water as it is when set.

(Prior art) A stop-off type water heater that uses a push-button operation button to turn on and off the burner, and is equipped with a push-button for ignition and a push-button for extinguishing, as well as a faucet lever for dispensing hot water and a temperature control lever. has already been proposed, but the pilot is ignited by pressing the ignition pushbutton, and then hot water is dispensed by opening the faucet lever.During that time, the hot water temperature is adjusted with the temperature control lever, and the faucet is turned off. The hot water supply is stopped by closing the lever, and when you stop using the water heater, the pilot extinguishes the fire by pressing the fire extinguishing push button. Since each of the stopper lever and the temperature control lever had to be operated, the order of operation was confusing and troublesome, making it extremely inconvenient in actual use.

(Purpose of the invention) This invention aims to solve the above-mentioned conventional drawbacks and improve operability, and also to ensure smooth and reliable pushbutton operation without causing vibration to the pushbutton. The present invention provides a water heater operating device.

(Structure of the invention) The structure is such that an ignition shaft 2 with a pushbutton 1 and a temperature control valve shaft 4 with a temperature control dial 3 are arranged side by side with different axes, and are arranged coaxially with the ignition shaft 2 so as to freely rotate. The rotary body 5 is connected to the temperature control valve shaft 4 via a rotation interlocking mechanism A such as gears 6, 6', and the rotary body 5 and the push button 1 are connected to a locking protrusion provided on the rotary body 5. 7, the engagement groove 8 provided on the push button 1, and the blocking surface 8', the rotation of the temperature control valve shaft 4 through the rotating body 5 at an angular position where only water is released, and the push of the push button 1 are achieved. shall be mutually interlocked, and furthermore,
A push button 1 is equipped with a push cap 10 formed at the tip of a push lever 9 which is rotatably mounted with its base end pivoted, thereby improving the operability of the water heater. This invention relates to the invention of an operating device.

(Embodiment) Hereinafter, an embodiment of the operating device for a stop water heater according to this invention will be described in detail based on the drawings.

In the drawing, 1 is a push button, 2 is an ignition shaft with the push button 1 attached to the base end, and the ignition shaft 2 is slidably inserted into the insertion hole 12a of a bracket 12 fixed to the container body 11, and its tip end protrudes to the other side, and is biased in the return direction (leftward in the drawing) by a return spring 13 installed between the bracket 12 and the base end spring receiver 2a of the ignition shaft 2. Then, the two guide rods 14 erected on the bracket 12 are inserted into the guide hole 15 formed in the base end of the push button 1, so that the ignition shaft 2 is connected to the push button 1.
It is provided to move linearly forward and backward along the guide rod 14 (in the left-right direction in the drawing), and is further swingably fixed to the bracket 12 in a loop-shaped stroke control groove 16 provided near the tip of the ignition shaft 2. With the control protrusion 17 slidably inserted, the first push operation causes the ignition shaft 2 to move forward by a certain stroke (the stroke from to in FIG. 1) against the spring 13, as described below. Through the interlocking mechanism C, the device valve built into the gas supply line to the main burner 18 is opened, the electromagnetic safety valve is held open, and the pilot burner is ignited, and when the pressing force of the push operation is released, a constant stroke is generated. (1st
The diaphragm water supply valve is automatically retracted by the elastic force of the spring 13 and locked in that position by the stroke (from to in the figure), and is installed in the water supply line to the heat exchanger via the interlocking mechanism C. It opens to start water flowing to the heat exchanger, and the water supply pressure activates the hydraulic response device to open the main gas valve and supply gas to the main burner 18, which is then ignited earlier by the pilot flame. After igniting and dispensing hot water, when the second push operation is carried out, the lock is moved forward by a certain stroke (approximately half the stroke from to in Fig. 1) against the spring 13. When it comes off and the pressing force is released, it automatically retreats by the elastic force of the spring 13 by a certain stroke (the stroke from to in Figure 1), returns to its original position, and closes the diaphragm water supply valve via the interlocking mechanism C. By stopping the water flow to the heat exchanger, the main burner 18 and the pilot burner are extinguished and hot water is stopped.

3 is a temperature control dial, 4 is a temperature control valve shaft with the temperature control dial 3 attached to the base end, which is installed in parallel with the ignition shaft 2 with a different axis, and is used to control the temperature control valve installed in the water supply line. It operates to increase or decrease the amount of water supplied to the heat exchanger and adjust the hot water temperature. Reference numeral 5 denotes a rotary body provided on the same axis as the ignition shaft 2 so that it can freely rotate. Insert the clip stop ball 19,
For example, when the temperature control dial 3 is rotated to the desired position such as the "Water out" position described later, or "Water out", "Hot water", "High temperature", "Low temperature", etc., the positioning and holding can be done easily and reliably. I'm trying to get comfortable. A is a rotation interlocking mechanism for interlocking the rotating body 5 with the temperature regulating valve shaft 4, in which a gear 6 engraved on the rotating body 5 and a gear 6' fixed to the temperature regulating valve shaft 4 are meshed to connect the temperature regulating valve shaft 4. 4 and the rotating body 5 are designed to rotate in conjunction with each other, however, any other rotation interlocking mechanism may be used as desired.

7 is a locking protrusion provided on the rotating body 5;
Reference numeral 8 denotes an engagement groove formed on the same circumference of the push button 1 over a certain angular range, and the engagement groove 8 is fitted into the locking protrusion 7.
Reference numeral 8' denotes a blocking surface which is connected to the engaging groove 8 on the same circumference and at a different angular position from the engaging groove 8, and when the locking protrusion 7 comes into contact with the blocking surface 8', its advancement is prevented. are increasingly being prevented. As will be described later, the combination of the locking protrusion 7, the engagement groove 8, and the blocking surface 8' allows the rotating body 5, that is, the rotation of the temperature control dial 3 at a certain angular position, and the push of the push button 1 to be controlled. They are now interlocked with each other. The engagement groove 8 rotates the temperature control dial 3 at a preset rotation angle (for example, from "hot water" to "low water").
180°), and when the push button 1 is in the push state (main burner 18 combustion state), the locking protrusion 7, that is, the rotation angle of the rotating body 5 is controlled via the temperature control valve shaft 4. The range is regulated by the engagement groove 8, and the temperature control dial 3 is locked so that it cannot rotate outside the preset rotation angle range, and the temperature control dial 3 is locked on the same trajectory as the preset engagement groove 8. Temperature control dial 3 at the angular position of the extended "Izumi"
When the button is rotated, the locking protrusion 7 is positioned on the blocking surface 8', and even if the push button 1 is pushed, the locking protrusion 7 hits the blocking surface 8' and is locked so that the push button 1 cannot be pushed. be done. Therefore, the temperature control dial 3 has the pushbutton 1 set to the ignition position and the main burner 1.
When the combustion position 8 is in the combustion position, the locking protrusion 7 is fitted into the engagement groove 8 and can be rotated only within the angle range of the engagement groove 8, and the temperature control dial 3 is set at the "outflow" angle. It cannot be rotated into position. Furthermore, when the push button 1 is in the extinguishing position, that is, in the retracted position, the locking protrusion 7 has come out of the engagement groove (8), so the temperature control dial 3 is turned to the "water out" angular position. At this time, the locking protrusion 7 is located on the blocking surface 8', and even if the push button 1 is pressed, the locking protrusion 7
Since this hits the blocking surface 8', ignition by the push button 1 and combustion by the main burner 18 cannot be performed. Therefore, pushbutton 1 and temperature control dial 3
During the operations of ignition combustion, hot water discharge, extinguishing, hot water supply stop, and water discharge, the two systems are mutually interlocked so that while one operation is in progress, the other cannot be operated.

Reference numeral 9 denotes a press lever whose base end is rotatably pivoted by a pivot 23 on a fixed plate 22 attached to a side plate 21 fixed to the side end of a burner nozzle tube 20 (described later). A push cap 10 is integrally formed on the push button 1 so as to allow play between the push button 1 and the circumferential surface 1b. On the other hand, a torsion spring 24 is interposed in the base end pivot portion of the push lever 9, and the top surface 1a of the push button 1 is made into a smooth arc shape. The push cap 10 is mounted on the push button 1 so that the top surface 1a and the planar inner surface 10a of the push cap 10 are in close contact with each other at all times. The pressing force of the button 1 is made to be a substantially straight and evenly distributed load so that even if the presser position of the finger deviates, it does not result in a deviated concentrated load.

In addition, B in the figure is a valve opening/closing mechanism for discharging water as it is, 25 is a convex cam provided on a cam plate 26 that is integrated with a gear 6' fixed to the temperature control valve shaft 4, and 27
An engaging piece 31 at one end is arranged so as to be engageable with an engaging protrusion 30 provided on a valve shaft 29 of a needle valve 28 of a diaphragm type water supply valve incorporated in a water supply system path, and a protrusion 32 at the other end. is a valve opening/closing lever pivotally mounted on the machine frame 34 by a pivot 33 in opposition to the convex cam 25, and when the temperature control dial 3 is rotated to the "water out" angular position, the valve opens and closes. The convex portion 32 of the opening/closing lever 27 is mounted on the convex cam 25, and the valve opening/closing lever 27 is rotated clockwise (in FIG. 1).
The needle valve 28 is moved back via the engagement protrusion 30, that is, the valve shaft 29, by the engagement piece 31 at one end, and the diaphragm type water supply valve is opened to discharge water as is. Further, C is an interlocking link for operating appliance taps in the gas supply system, the needle valve 28 of the diaphragm water supply valve in the water supply system, and switches S related to ignition and extinguishing by pushing the push button 1. It is a mechanism in which the tip of the ignition shaft 2 is brought into contact with a driving piece 36 of an operating arm 35 which is pivotably mounted on one side of the machine frame 34, and an instrument plug is attached to an operating piece 37 of the operating arm 35. operating shaft 38 and ignition;
The ignition shaft 2 is connected to the switch S etc. related to extinguishing the fire.
moves forward and backward according to the forward and backward strokes predetermined by the stroke control groove 16, thereby operating the instrument stopper and the electromagnetic safety valve and switch S, etc. linked thereto, via the operating arm 35, thereby controlling the pilot burner and the main burner. 18 blinks. Further, on the other side of the machine frame 34, a hook rod 40 is rotatably biased clockwise in FIG. The operating arm 35 and the connecting rod 41 are connected to each other, and the hook rod 4
0 rotates within a certain angular range together with the passive frame 39, so that its tip hook portion 40' engages and disengages from the engagement protrusion 30 of the valve shaft 29 of the needle valve 28, and the needle valve 2
8 is opened and closed to supply and disconnect water to the heat exchanger. 42 is a front cover of the vessel, 43 is an operating knob for the capacity switching valve, 44 is a hot water tap, 45 is an operating lever for switching capacity, and 46 is a guide plate fixed to a mounting plate 48 fixed to the capacity switching device 47. ,
The operating lever 45 slides while being guided by slits formed in the guide plate 46 and the mounting plate 48, respectively, and has a capacity switching valve (not shown) fixed to the base end thereof.
Rotate to adjust its opening. 49 is a nozzle collecting pipe, 50 is a gas conduit, and 51 is a peripheral wall of the combustion chamber.

In the above configuration, ignition, dispensing of desired hot water temperature, extinguishing, and stopping of dispensing of hot water by pushing the push button 1 via the press cap 10 of the press lever 9, and discharging of water by rotating the temperature control dial 3 are performed on one side. During the operation, the push button 1 and the temperature control dial 3 can be easily and reliably operated by the push button 1 and the temperature control dial 3, which have a relationship that prevents the operation of the other and have different axes. Since the part is pushed, the pressing force does not become a concentrated load that causes deviation, but becomes a substantially straight and evenly distributed load, so that the ignition shaft 2 does not bend or tilt. That is, when the top surface 1a of the push button 1 is not in use, it comes into contact with the inner surface 10a of the press cap 10 at a position slightly above the center (in FIG. Then, it moves from the center of the top surface 1a to a position slightly lower than the center. Here, since the pressing point on the top surface 1a of the push button 1 is limited to approximately the vicinity of the center thereof, the push button 1 or the ignition shaft 2 swings and receives almost no bending force.

(Effects of the invention) As explained above, in this invention, the pushbutton and the temperature control dial are provided with different axes, which improves the operability and eliminates erroneous operation. In addition, since the push button is pushed at the center of its top surface through the push cap, the ignition shaft remains straight without bending or tilting even under conditions where the guide body of the ignition shaft is weak. It has the excellent effect of advancing and retracting in a straight line, making the push operation smooth and reliable, and improving its performance.

[Brief explanation of the drawing]

Fig. 1 is an exploded sectional view showing an embodiment of the operating device for a stop water heater according to this invention, Fig. 2 is a perspective view of the push lever, and Fig. 3 is an overall view of the water heater shown in Fig. 1. FIG. 3 is a front view showing the external appearance. 1...Push button, 2...Ignition shaft, 3...Temperature control dial, 4...Temperature control valve shaft, 5...Rotating body, 6,
6'... Gear, A... Rotation interlocking mechanism, 7... Locking protrusion, 8... Engagement groove, 8'... Blocking surface, 9...
Pressing lever, 10...pressing cap.

Claims (1)

[Scope of utility model registration request] Ignition shaft 2 with pushbutton 1 and temperature control dial 3
Temperature regulating valve shafts 4 having different axes are arranged in parallel, and a rotating body 5 which is freely rotatable coaxially with the ignition shaft 2 is connected to the temperature regulating valve shaft 4 and a rotation interlocking mechanism such as gears 6, 6'. A combination of a locking protrusion 7 provided on the rotating body 5 and an engagement groove 8 and a blocking surface 8' provided on the push button 1, which are connected to each other via A, and the rotating body 5 and the push button 1 are provided on the rotating body 5. The rotation of the temperature control valve shaft 4 to the water outlet angular position and the push of the push button 1 are interlocked with each other via the rotating body 5, and the push button 1 is provided with a base end that is pivotably supported. An operating device for a stop-type water heater, characterized in that a press cap 10 is mounted on the tip of a press lever 9 which is rotatably mounted.