JPH0142760Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a push button operated gas instantaneous water heater.

The applicant of this application has previously developed a water heater of this type, which includes a push button on the front surface of the water heater body which has a heat exchanger inside and a burner unit facing the heat exchanger. According to the second push operation, the gas valve in the gas passage leading to the burner unit and the water valve in the water passage leading to the heat exchanger are activated via a pair of operating rods that respond to this. We have proposed a type that can be opened to obtain a predetermined amount of hot water, and furthermore, in such a device, a temperature control member connected to a control member for controlling the hot water temperature is provided on the front side of the hot water so as to be movable in the horizontal direction. We have also proposed a type that allows the temperature to be adjusted freely within a predetermined range, but in this case, when the temperature adjustment member is moved beyond the predetermined range to a lower temperature side, When the push operation is applied, it is preferable that only the water valve opens without opening the gas valve, so that water from the water supply side can be directly led to the hot water outlet side.

The purpose of the present invention is to obtain a device that meets such requirements, and includes a heat exchanger 1 inside,
A push button 4 is provided on the front surface of the water heater main body 3 having the burner unit 2 facing thereto, and when the push button 4 is pressed for the first time, a pair of operating rods respond to the push button 4. 5,
6, the gas valve 8 of the gas passage 7 leading to the burner unit 2 and the water valve 10 of the water passage 9 leading to the heat exchanger 1 are opened, and the hot water temperature is controlled on the front side. Temperature adjustment member 1 connected to control member 11
2, the operating rod 5 corresponding to the gas valve 8 and the push button 4
A connecting member 13 is provided between the temperature adjusting member 12 and the connecting member 13 which is normally in the operating position and connects the two 5 and 4 to each other. In other words, it can be pushed by this to move freely to the inoperative position.

To further explain this with reference to the illustrated embodiment, the burner unit 2 consists of a main burner 2a and a pilot burner 2b, and the gas passage 7 is connected to the main burner 2a on its downstream side.
a, and the pilot gas passage 7b leading to the pilot burner 2b.
The pilot burner 2b is provided with an ignition electrode 15 that responds to the ignition switch 14, which is closed when the operating rod 5 is operated, and the main gas passage 7a is provided with an ignition electrode 15 that responds to the opening of the water valve 10. Hydraulic response valve 1 that opens when water flows through the heat exchanger 1
Furthermore, the gas valve 8 includes a downstream gas on-off valve 8a that is pushed by the operating rod 5 to open, and an upstream gas safety valve that is pushed and opened via the on-off valve 8a. 8b.
Furthermore, in the illustrated embodiment, a pressing lever 17 is provided on the front surface of the water valve 10 to open the water valve 10, and a pressing lever 17 is provided on the operating rod 6 corresponding to the water valve 10, so that when the rod 6 is swung to the rearward end position, the lever 17 can be opened. 17, so that the water valve 10 has a ratchet 18 that engages with the pushbutton 4
When performing the push operation, the shutter does not open with that push, but opens with the subsequent release. That is, when the push button is operated, the gas valve 8 is sequentially opened at the push button, and then the water valve 10 is opened at the release button. Further, the control member 11 is composed of a water amount control member 11a on the side of the water passage 9 and a gas amount control member 11b on the side of the gas passage 11. It was slidably supported on the right side and freely guided to the high temperature side on the right side and the low temperature side on the left side.

Although the above is not particularly different from the conventional one, according to the present invention, as mentioned above, the connecting member 13 is switchably provided between the operating rod 5 and the push button 4. The detailed description thereof is as shown in FIGS. 2 to 4, for example. That is, the connecting member 13 is composed of a shutter member 13a on the back side of the push button 4, which opens and closes a transparent window 4b on the front side of the operating rod 5, which is formed on a press plate 4a that is tiltable back and forth on the back side of the push button 4. This is the middle axis 1
3b is pivotally supported so as to be tiltable from side to side, and its top portion is slidably and rotatably fitted to the end on the guide shaft 19, and is pushed out by the adjusting member 12 against the spring 13c. Pin 1 is attached to the sliding member 13d that can be slid in the direction.
3e and a pin groove 13f, and thus the member 13 is normally in the operating position as shown in the second figure, that is, the position where the transparent window 4b is closed, and in this state, the push button 4 According to the push operation, it is pushed by the operating rod 5 and operates, but the fourth
In the non-operating position as shown, that is, the position in which the transparent window 4b is opened, the operating rod 5 only protrudes into the transparent hole 4b even if the push button 4 is operated, and no operation is applied to it. I tried not to. That is, the connecting member 13 connects both 4 and 5 to each other in its operating position, but releases the connection in its inactive position.

Furthermore, in the illustrated one, the shutter member 13a is provided with a tongue piece 13g extending rearward and a stopper 13h on the side thereof that cooperates with the tongue piece 13g, so that the pressing plate 4a is moved to a rearward tilted position when the push button 4 is pushed. In this case, the tongue piece 13g and the stopper 13h are in an operating state in which they overlap each other, and in this state, the shutter member 13a is stopped by the stopper 13b and is prevented from unintentionally swinging between the operating position and the non-operating position. I tried not to give any movement.

Next, the overall operation will be explained. When using the pushbutton 4, the gas valve 8 is first opened and the burner unit 2 introduces gas to its pilot burner 2b. The water valve 10 is then ignited and then the water valve 10 is opened.
is opened to allow water to pass through the heat exchanger 1, and the burner unit 2 is guided to its main burner 3a to ignite the gas, thus causing the heat exchanger 1 to receive water heated by the main burner 2a. This produces hot water. Furthermore, during such an operation, by moving the adjusting member 12 left and right within a predetermined range, the temperature of the tapped water can be adjusted between low and high temperatures accordingly. Although the above is not particularly different from the conventional one, according to the present invention, during such operation, the adjustment member 12
is made to be able to move beyond the predetermined temperature range to the lower temperature side on the left in the drawing as required, and by this swinging, the connecting member 13 is pushed by the member 12 and the operation shown in the second figure is performed. position to the inoperative position shown in FIG. Thus, when the push button 4 is operated in this switched state, the gas valve 8 does not respond to this, and only the water valve 10 opens in response, and the hot water on the outlet side is opened. The water on the water supply side is guided as is. Next, when the pushbutton 4 is returned to its original position by pushing the button again and the adjusting member 12 is moved to the right, the connecting member 13 is released from the pressure and returns to its original operating position. Next, when the pushbutton 4 is pushed, the gas valve 8 is also pushed open and normal operation can be achieved.

As described above, when the present invention is used, when the pushbutton 4 is pushed, the gas valve 8 and water valve 10 are both opened in the normal operating state, and only the water valve 10 is opened and water is directly supplied to the hot water outlet side. The temperature control member 12 can be freely switched to the desired state, making its use convenient, and the switching simply involves moving the temperature regulating member 12 beyond a predetermined temperature range to a lower temperature side, and then returning it. It has the effect of making its use simple and easy.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of one example of the proposed water heater, Fig. 2 is an enlarged front view with some of its main parts cut out, Fig. 3 is a cutaway side view thereof, and Fig. 4 is the same as Fig. 2. FIG. 3 is a front view of the connecting member in a retracted state corresponding to FIG. 1... Heat exchanger, 2... Burner unit, 3...
...Water boiler body, 4...Push button, 5, 6...Operation rod, 7...Gas passage, 8...Gas valve, 9...
Water passage, 10... Water valve, 11... Control member, 12
... Temperature adjustment member, 13 ... Connection member.

Claims (1)

[Scope of utility model registration request] A push button 4 is provided on the front surface of the water heater main body 3 which has a heat exchanger 1 inside and a burner unit 2 opposite thereto.
According to the first push operation, the gas valve 8 of the gas passage 7 connected to the burner unit 2 and the gas valve 8 connected to the heat exchanger 1 are opened via a pair of operating rods 5 and 6 that respond to this. A control member 1 for opening the water valve 10 of the water passage 9 and controlling the temperature of hot water in front of the water passage 9
1, in which the temperature control member 12 connected to the gas valve 8 is provided in a movable manner, the operating rod 5 corresponding to the gas valve 8 and the push button 4 are always in an operating position, and both 5, A connecting member 13 that connects 4 to each other.
The instantaneous water heater is provided with a member 13, and when the adjusting member 12 is moved to a low temperature side exceeding a predetermined temperature range, the member 13 is pushed by the adjusting member 12 and can be moved to a non-operating position.