JPH023111B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a stop-start type water heater.

(Prior Art) A conventional shut-off type water heater includes a heat source, a heat exchanger heated by the heat source, and a water valve interposed in a water supply pipe connected upstream of the heat exchanger. It is known that hot water is obtained from a hot water outlet at the tip of a hot water pipe connected downstream of the heat exchanger by opening the water valve and allowing water to flow through the heat exchanger.
In this case, the water valve is generally controlled to open and close in conjunction with the operation of an operator provided on the front surface of the water heater body.

(Problems to be Solved by the Invention) Generally, the main body of a water heater is disposed above a sink, and its outlet faces the sink of the sink.

Therefore, according to the above-mentioned conventional method, it is necessary to take a break from washing, extend the hand above the sink, and operate the operator to turn on and off the hot water, resulting in inconveniences such as poor usability.

(Means for Solving the Problems) In order to solve the above-mentioned disadvantages of the conventional example, the present invention aims to provide a water heater in which hot water can be turned on and off by operating the hot water outlet near the sink of the sink. It is equipped with a heat source, a heat exchanger heated by the heat source, and a water valve interposed in a water supply pipe connected to the upstream side of the heat exchanger, and the water valve is opened to release the heat. In a water heater that allows hot water to be obtained from a hot water outlet at the tip of a hot water pipe connected to the downstream side of the heat exchanger by passing water through the exchanger, the hot water outlet includes:
The present invention is characterized in that an operating member for controlling opening and closing of the water valve is provided via a cable in the hot water tap pipe.

(Function) When the operating member of the hot water outlet is operated, the operation is transmitted to the water valve via the cable in the hot water outlet pipe, the water valve is opened, and water is passed to the heat exchanger.
Hot water is obtained from the tap.

(Example) Next, the present invention will be explained based on the illustrated example.

FIG. 1 shows the appearance of a water heater 1, and inside the water heater 1 there are a heat exchanger 2 and a heat exchanger 2 as shown in the second diagram.
A burner 3 is provided as a heat source for heating the burner, and a burner 3 is provided as an operated member in the gas passage 4 leading to the burner 3, and is held open by a predetermined electromotive force from a thermocouple 5 for combustion detection. A gas control unit 7 incorporating an electromagnetic safety valve 6 is provided, and a water valve 9 is installed in a water supply pipe 8 connected to the upstream side of the heat exchanger 2. There is a hot water outlet 1 at the tip of the hot water tap 10 that continues downstream of the exchanger 2.
1 is provided.

The gas control unit 7 and the water valve 9 are operated via a push rod 12 in front of them.

The push rod 12 is configured to be able to be pressed freely from the starting end position A to the rear end position B against the return spring 13, and the return operation from the end position B to the intermediate position C is performed by a push mechanism 14 assembled thereto. It is configured such that it is locked at the position and returned to the starting end position A by pressing the button again.

The gas control unit 7 includes the electromagnetic safety valve 6 and a normally closed type gas valve 15 located downstream of the electromagnetic safety valve 6 in the gas passage 4. The pilot gas passage 17 connected to the installed pilot burner 16 is branched.

The gas valve 15 has the push rod 1 at the front end of the valve rod 35.
2, and when the push rod 12 is pushed from the start end position A to the end position B, the first operation rod 18 comes into contact with the valve rod 16, and moves to the intermediate position C. The gas valve 15 is opened, and then the electromagnetic safety valve 6 is pushed open via the lever 19 interlocked with the valve rod 35 by pushing beyond the intermediate position C toward the terminal position B. I made it.

The water valve 9 is constituted by a spool-type valve, and a second operating rod 2 interlocked with the push rod 12 is attached to the water valve 9.
0 is connected, and when the push rod 12 is pressed from the start end position A to the end position B, the water valve 9 is opened to a predetermined opening degree at the intermediate position C, and the heat exchanger is opened by opening the water valve 9. 2, an automatic valve 2 interposed in the gas passage 4 on the downstream side of the gas valve 15 is detected by a water flow detector 21 such as a hydraulic responsive member or a flow switch.
2 was made to open.

Further, when the push rod 12 is pushed to the terminal position B, the igniter 23 is activated and the pilot burner 16 is ignited, and when the push rod 12 is returned to the intermediate position C, the water valve 9 Gas is supplied to the burner 3 through the automatic valve 22, which is opened in advance by the water flowing to the heat exchanger 2 when the valve is opened, and the gas is given a transfer ignition from the pilot burner 16 to open the outlet. Hot water can be obtained from 11.

Here, when the push rod 12 returns from the terminal position B to the intermediate position C, the pressure on the electromagnetic safety valve 6 is released, and if a predetermined electromotive force is not generated from the thermocouple 5 at this time, the Since the electromagnetic safety valve 6 would be closed, in order to prevent this, the heat exchanger 2
The water supply pipe 8 on the upstream side of the water valve 9 is branched on the upstream side of the water valve 9, and a pressure chamber 27 having an on-off valve 25 at the inlet and a diaphragm 26 inside is provided at the end of the branch passage 24. and outlet 11
are communicated with each other through an orifice 28, and a shaft piece 29 protruding outward from the pressure chamber 27 is provided on the diaphragm 26 to face the front end of the push rod 12, so that when the on-off valve 25 is opened, Water from the water supply pipe 8 flows into the pressure chamber 27, and the water flows into the diaphragm 26.
The diaphragm 26 was moved so that the shaft piece 29 pressed the press rod 12 from the starting position A to the final position B. The water in the pressure chamber 27 passes through the orifice 28 and is gradually released from the tap 11, and after a certain period of time when the water is released below a predetermined amount, the diaphragm 26 returns to its original position, and the push rod 12 is pushed by the shaft piece 29. When the pressing operation is released, the push rod 12 returns to the intermediate position C.

In this way, the electromagnetic safety valve 6 is first held open by the movement of the diaphragm 26 and then by the electromotive force from the thermocouple 5. In conventional water valves, the water valve 9 is opened by operating an operator provided on the front side of the water heater body, which causes inconveniences such as inconvenience because the operator is far from the tap water outlet. , is not preferable, so in the present invention, the outlet 11
An operating member 31 for controlling the opening and closing of the water valve 9 is provided at the tap water outlet 1 via a cable 30 in the tap water pipe 10.
The usability of the water heater 1 is improved by making it possible to turn on and off hot water by operating the operating member 31 at step 1.

To explain this in more detail with reference to the diagram, the operating member 31 is constituted by an operating lever 32, and one end of the operating lever 32 is connected to a cable 3 in the hot water outlet pipe 10.
a cam 3 that moves the opening/closing valve 25 up and down via 0;
3 and press the other end of the operating lever 32 to swing the operating lever 32 about the fulcrum 34 and move the cam 33 to open the on-off valve 2.
5 is opened, and this valve opening moves the diaphragm 26 as described above, and the push rod 12
was pressed to lock it in the intermediate position C, and the water valve 9 was opened so that hot water could be obtained from the outlet 11. In addition, to stop the hot water, press the operating lever 32 again to open the on-off valve 25 again, and the pressure chamber 2
7, the diaphragm 26 is moved, and along with this movement, the push rod 12 is pressed again to release the lock at the intermediate position C, return to the starting position A, and close the water valve 9. Just let him speak.

Note that, as in the above embodiment, if the cable 30 connected to the operating lever 32 is connected to the water valve 9 via a booster mechanism, that is, the pressure chamber 27 equipped with the diaphragm 26 inside, the cable 30 can be directly connected to the water valve 9. This is advantageous in that the operating force of the operating lever 32 can be made extremely small compared to the case where the operating lever 32 is connected to the operating lever 32.

(Effects of the Invention) As described above, according to the present invention, the opening/closing control of the water valve provided in the hot water outlet at the tip of the hot water tap connected to the downstream side of the heat exchanger and the water supply pipe connected to the upstream side of the heat exchanger is performed. Since the hot water heater is equipped with an operating member, hot water can be turned on and off from the outlet side of the water heater, making it easier to use than the conventional water heater, in which hot water is turned on and off from the front side of the water heater body. It has the effect of improving.

[Brief explanation of drawings]

FIG. 1 is a front view showing one embodiment of the water heater of the present invention, and FIG. 2 is a cutaway front view showing the main parts thereof. 1...Water boiler, 2...Heat exchanger, 3...Heat source (burner), 8...Water pipe, 9...Water valve, 10...
Hot water pipe, 11... Hot water outlet, 30... Cable, 3
1... Operation member.

Claims (1)

[Claims] 1 Equipped with a heat source, a heat exchanger heated by the heat source, and a water valve installed in a water supply pipe connected to the upstream side of the heat exchanger, the water valve is opened to supply water to the heat exchanger. In a water heater that allows hot water to be obtained from a hot water outlet at the tip of a hot water tap connected to the downstream side of the heat exchanger by passing water, the water is supplied to the hot water tap via a cable in the hot water tap. A water heater characterized by being provided with an operating member for controlling opening and closing of a valve.