JPH0429219Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention uses a push button to switch between ignition, combustion, and extinguishing, and uses a rotary button to adjust the hot water temperature and release cold water. In particular, the present invention relates to an operation button device for a water heater that operates a pilot nozzle cleaning device.

[Conventional technology]

Conventionally, a water heater equipped with an ignition operation button and a fire extinguishing operation button is known as a device for cleaning the pilot nozzle of a water heater. There is a structure in which the cleaning needle is pushed and retreated in conjunction with the extinguishing operation.

[The problem that the idea aims to solve]

In the conventional technology described above, which has a cleaning function that is linked to the extinguishing operation of the extinguishing operation button, it is necessary to perform two push operations with two operation buttons, which is not simple and may cause mistakes in operation, and the cleaning needle Drive-related parts for the push rods are naturally necessary and difficult to reduce by standardizing them. Furthermore, since the burner nozzle is cleaned with a cleaning needle every time a fire is extinguished, the nozzle hole wears out and becomes larger, which is a problem.

This device is a water heater that performs ignition, combustion, and extinguishing operations with a pushbutton operation, and the operation button that controls the hot water temperature and dispenses cold water with a rotating operation is in the backward position to the "water output" position outside the temperature control angle range. The above-mentioned problem is solved by providing a structure in which the pilot nozzle cleaning device can be operated to clean the nozzle only when switching to the nozzle.

[Means to solve the problem]

In order to solve the problem, this invention switches the ignition, combustion, and extinguishing positions by push button operation, and adjusts the hot water temperature by rotating operation button 1 within the temperature control angle range a. In the push operation position, the rotation can be received by the engagement between the positioning piece 11 of the operation button 1 and the stopper 10 of the operation panel 4 in the low temperature position, and when the operation button 1 is set to the extinguishing position, the positioning piece 11 and the stopper 10 is disengaged and the positioning piece 11 is made rotatable on the stopper 10 to enable switching from the low temperature position of the temperature control angle range a to the "water output" range b outside the temperature control angle range. A cam plate 13 is provided on the rotary body 7 provided on the operation panel 4 so as to be able to move together with the operation button 1, and an operating member is provided in the rotation range of the cam plate 13 that moves together when the operation button 1 is rotated to the "water release" range b. For example, an operating lever 17 is provided in conjunction with the operating lever 17, and the cleaning needle in the pilot nozzle cleaning device 2 is operable by the operation of the operating lever 17, and the operating button 1 is set to the extinguishing position to "water out" outside the temperature control angle range. A technical means is adopted in which the cam plate 13 operates the operating member 17 to operate the cleaning needle of the pilot nozzle cleaning device 2 to clean the pilot nozzle only when the pilot nozzle is rotated to the range b.

[Effect]

With the above configuration, when igniting the burner for combustion, the pilot burner is ignited by pushing the operating button 1 located at the extinguishing position from the extinguishing position to the ignition position within the temperature control angle range a, and then the pressing force on the operating button is released. When the operation button moves from the ignition position to the combustion position, it locks and the main burner burns, and at that combustion position, the operation button 1 for adjusting the hot water temperature is pressed.
Adjust the hot water temperature by rotating it in the temperature adjustment angle range a from low temperature to hot water. To extinguish the combustion of the burner, push the operation button to release the lock and return the operation button to the original extinguishing position ( Return to the retracted position). When discharging water, disengage the positioning piece 11 from the stopper 10 at the extinguishing position (retracted position), rotate the positioning piece on the stopper 10, and move the water out from the low-temperature tapping position to the position outside the temperature control angle range. '' to the range b to discharge cold water. In this range, the positioning piece 11 of the operating button is received on the stopper 10, the push operation is restricted, and the ignition combustion state does not occur. Utilizing the rotational stroke of the operation button in the "water output" range b, the cam plate 13 provided on the rotating body that moves together with the rotation stroke presses the operating lever 17 in the nozzle operating mechanism A to swing the operating lever 17, The tip can be pressed in conjunction with the cleaning needle push rod 12 of the nozzle cleaning device 2 to clean the nozzle hole with the nozzle cleaning needle.

〔Example〕

Examples of this invention will be described below based on the drawings.

In Figures 1 to 5, reference numeral 1 denotes an operation button, which is inserted so that it can be switched forward and backward to the ignition, combustion, and extinguishing positions by pushing in the axial direction, and the temperature adjustment angle can be changed by rotating in the circumferential direction. It is inserted so that the hot water temperature can be adjusted in range a, and at the extinguishing position, it can be switched to the "water flow" range b outside the temperature adjustment angle range. In the embodiment, a temperature control valve (not shown) for adjusting the amount of water flowing is connected to the rear opening 5 of the operation panel 4, which is attached with the front center part of the front cover 3 of the water heater exposed, and is operated through a gear mechanism 6. The operating button 1, which is inserted into the front opening 8 of the operation panel 4 so as to be retractable and retractable, is movable forward and backward in the axial direction with respect to the rotating body 7, and is rotatable in conjunction with the rotating body 7. and prepare,
A press rod 9 that operates related operating members such as a water outlet valve and a burner valve device is fixed to the operation button 1, and the press rod 9 is moved forward and backward in the axial direction by a stroke determined by a stroke control means to ignite and burn. The operation button 1 is designed to switch to each position for extinguishing, and at a predetermined angular position with respect to the stopper 10 provided on the operation panel 4, that is, at the push operation position in the temperature adjustment angle range a, "low temperature" and "hot water" are selected. It is received by the stopper 10 at the position of
A positioning piece 11 is provided that can be disengaged from the stopper 10 and rotated on the stopper 10, and when the operation button 1 is in the combustion position (forward position), the rotating body 7 can be rotated in the temperature control angle range a from low temperature to hot water. Adjust the water temperature by moving the
Moreover, when the operating button 1 is in the extinguishing position (retracted position), the rotating body 7 is co-rotated to the "water discharge" range b outside the temperature control angle range, thereby enabling the operation of the water discharge valve (not shown).

Reference numeral 2 designates a nozzle cleaning device for a pilot burner. In this embodiment, a cleaning needle that can be inserted and retracted into a nozzle hole of a burner nozzle is inserted by advancing a push rod 12 against a spring, and is returned by a spring to clean the nozzle hole. I am set to clean it.

Reference numeral A denotes a nozzle actuating mechanism interlocked with the push rod 12 of the nozzle cleaning device 2, in which a cam plate 13 is formed protrudingly on the outer periphery of the rotating body 7, and a central support part 1 is attached to the mounting plate 14.
5 is rotatably supported on a shaft 16.
One end 17a faces the rotation range of the cam plate 13 that moves together when the operation button is rotated to the "water output" range b, and the other end 17b faces the push rod 12 of the nozzle cleaning device 2.
In relation to this, when one end 17a of the operating lever 17 is pressed by the rotation of the cam plate 13 of the rotating body 7 due to the rotation operation of the operating button 1 in the extinguishing position (retracted position), the push rod 12 is pressed by the other end 17b of the operating lever 17. Activate the push cleaning needle and insert it into the nozzle hole. The cam plate 13 of the rotating body 7 comes into contact with the operating lever 17 and rotates the operating lever 17 when the operation button 1 is rotated in the water flow range b from "large" to "small". A cleaning needle is forwardly inserted into and removed from the nozzle hole of the nozzle by a push rod 12 of the nozzle cleaning device 2 for complete cleaning.

In addition, in order to enable the operating button 1 to move forward and backward with respect to the rotating body 7 and to rotate together, the operating button 1 is provided with a guide tube 18 and a protrusion 19 in the embodiment.
A guide shaft 20 provided on the rotary body 7 is inserted into the guide tube 18 so as to be slidable in the axial direction so as to be rotatable together in the circumferential direction, and a protrusion 19 is inserted into the rotary body 7 in the axial direction. It is connected to a press rod 9 that can freely slide, and is biased in the return direction by a spring 21. 22 is the pressure rod 9
23 is a control protrusion that slides within the control groove 22; 24 is a control protrusion that allows the rotating body 7 to be fixed in the axial direction with respect to the operation panel 4 and rotates in the circumferential direction; It is a clamping piece that can be attached freely. Reference numerals 11a, 11b, and 11c are positioning pieces that lock onto the stopper 10 at each of the "water out", "low temperature", and "hot water" positions. 10
The temperature is controlled by rotating within the temperature control angle range a that can be received by As shown in Figures 4A and 4B, when the fire extinguishing position (retracted position) is set, the positioning piece 11b comes off from the stopper 10, and the positioning piece 11 is moved to the stopper 10.
The positioning piece 11a rotates outside the temperature adjustment range through the play range c, and the positioning piece 11a comes out in the range b, which ranges from the water flow amount "large" within the range that is received by the stopper 10 to the water flow amount "small". The cam plate 13 adjusts the amount of water and in the rotation stroke of the "water output" range b.
presses the operating lever 17 to operate the cleaning needle of the nozzle cleaning device, and during this operation, the operation button 1 is prevented from being pressed down to prevent ignition and combustion in this range, and the water is cooled. The water is released as it is.

In other words, operation button 1 for "water supply" in the "water supply" state
The rotation of the button 1 is interlocked with the advancement of the operation button 1 to the "hot water tap" state in the "water tap" state.

Reference numeral 25 denotes an operating arm with which the tip of the pressure rod 9 is opposed and used to operate ignition, fire extinguishing switches, etc., open and close electromagnetic safety valves, etc., and open and close a water stop valve (not shown) via an opening/closing lever 26. Further, as a gear mechanism for operating the temperature control valve, a gear 27 is formed on the outer periphery of the rotating body 7, and the gear 27 is meshed with a gear 29 fixed to the valve shaft 28 of the valve plate of the temperature control valve to operate the temperature control valve. Rotation of the button 1 changes the degree of water flow opening of the temperature control valve via the rotating body 7 and the gear mechanism 6, and the gear 29
A cam plate 31 having a protrusion 30 is provided on the cam plate 31, and an opening/closing lever 32 for operating a water discharge valve is engageably associated with the cam plate 31, and the operation button 1 is rotated to a "water discharge" range outside the temperature control angle range. As a result, the opening/closing lever 32 is pressed and rotated by the cam plate 31 to open the water outlet valve.

With the structure described above, when cold water is to be dispensed, the operating button 1 is returned to the extinguishing position (retracted position), the operating button 1 and the rotating body 7 are rotated to the "water dispensing" range outside the temperature control angle range, Cam plate 3 rotated by a rotation mechanism
The opening/closing lever 32 is actuated by the protrusion 30 of No. 1 to open the water outlet valve and discharge a predetermined constant amount of cold water. Normally, water is discharged by setting the operation button 1 to the "water supply" position and the water supply amount "large" position.

When the operation button 1 is rotated from the "large" water output amount position in the "water output" range b to the "low" position, that is, to the rotation end, the cam plate 13 provided on the rotating body 7 activates the operating lever 17.
One end 17a is pressed to rotate around the shaft 16, and the push rod 12 of the nozzle cleaning device 2 is pushed in with the other end 17b of the operating lever 17 to insert the cleaning needle into the nozzle hole of the nozzle to clean the nozzle hole. It is something that does.

Note that hot water is dispensed by turning the operating button 1 to the temperature control angle range a and pushing it forward to the lock position, the ignition switch and various gas valves are opened by the opening/closing lever 25, the burner burns, and the opening/closing lever 26 opens the ignition switch and various gas valves. The water outlet valve is opened to dispense hot water, and the rotating mechanism adjusts the opening degree of the temperature control valve to adjust the hot water temperature.

In this embodiment, a case has been described in which the operation button 1 and the rotating body 7 are rotated together, but by supporting both concentrically in separate bodies, it is possible to perform the blinking operation and the hot water temperature adjustment operation separately with the two operation bodies. This purpose can be achieved even if it is inserted into the

[Effect of idea]

According to this invention, the nozzle cleaning device can be activated by the nozzle operating mechanism to clean the nozzle hole of the pilot burner only when the operation button is turned to the less frequently used "water output" range in the extinguishing position of the operation button. When dispensing cold water, you can clean the nozzle and do it a reasonable number of times, and if you configure ignition, extinguishing, and dispensing hot water with a single button, you can clean the nozzle with just a single button. This can be done with the operation button, and the operability is extremely good.The driving part of the cleaning needle can be shared with the linked part of the hot water temperature adjustment, which can reduce costs, and also prevents the nozzle hole from wearing out. Durability can be increased.

[Brief explanation of the drawing]

Fig. 1 is a front view of a water heater showing an embodiment of this invention, Fig. 2 is an enlarged sectional view of the main part, Fig. 3 is a perspective view of the main part, and Fig. 4 A shows the operation button instructions. An explanatory diagram showing the relationship between the cam plate, the nozzle operating mechanism, and the nozzle cleaning device when the water is in the water outflow position, Figure 4B is an expanded explanatory diagram showing the relationship between the stopper and the positioning piece at that time, and Figure 5 is the operation FIG. 7 is an explanatory diagram showing the relationship between the cam plate and the nozzle operating mechanism when the button is at a low temperature position within the temperature control angle range. 1...Operation button, 2...Nozzle cleaning device, A...
Nozzle operating mechanism, 7...rotating body, 9...pressing rod,
10... Stopper, 11... Positioning piece, 12
... Push rod, 13 ... Cam plate, 17 ... Operating lever, a ... Temperature control angle range, b ... "Water output" range.

Claims (1)

[Scope of utility model registration request] The operating button 1, which switches to the ignition, combustion, and extinguishing positions by pushbutton operation, and adjusts the hot water temperature by rotating the pushbutton, is set to the low temperature position at the pushbutton operating position in the temperature adjustment angle range a. 11 and the stopper 10 of the operation panel 4 can receive the rotation, and when the operation button 1 is set to the extinguishing position, the positioning piece 11 and the stopper 10 are disengaged, and the positioning piece 11 is moved to the stopper 10. A cam plate 13 is provided on the rotary body 7 provided on the operation panel 4 so as to be able to move in conjunction with the operation button 1, in which the upper part is rotatable to enable switching to the "water output" range b outside the temperature control angle range. , move the operation button 1 to the "water release" range b
An operating member 17 is provided in association with the rotation range of the cam plate 13 that moves together when the cam plate 13 is rotated, and the cleaning needle of the nozzle cleaning device 2 is provided to be operable by the operation of the operating member 17, and the operation button 19 is turned off. This operating button device for a water heater is equipped with a cam plate 13 that operates an operating member 17 to operate a cleaning needle in a nozzle cleaning device 2 to clean a pilot nozzle only when the position is switched to a "water output" range b.