JPS6131785B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, the hot water temperature of a gas water heater is set by operating a faucet at a hot water supply point.One embodiment of the gas water heater of the present invention will be described below.

That is, in the figure, 1 is a boiler connected to a fuel gas supply pipe 2 to the internal burner and a water supply pipe 3 to the hot water storage tank, 4 is a control device for supplying gas to the burner, and 5 is a water supply channel in the boiler. The control device 4 measures the number of times the water supply switch is turned on and off, and the amount of gas supplied, that is, the set hot water temperature, is changed based on the number of times the water supply switch is turned on and off. 7 is the hot water pipe, 8 is the second hot water faucet
It is configured as shown in the figure. Specifically, this faucet 8 includes a faucet main body 9 that is connected to the distal end of the hot water supply pipe 7 in an interposed state, a valve body 10 for opening and closing the hot water supply passage that is rotatably fitted into this main body, and a valve body 10 for opening and closing the hot water supply passage that is rotatably inserted into this main body. Pressure spring 1
1. Consists of a spring holder 12 and a knob 13 for rotating the valve body 10 through the holder 12, and the holder 12 has a spring holder 12 that rotates the valve body 10 in a predetermined direction of 90 degrees from the closed state. A first stopper 12a abuts against the opening locking pawl 9a of the main body 9 when rotated, and a second stopper 12b abuts when rotated through 270 degrees in the same direction.

In the above configuration, FIG. 3a shows a case where the running water switch 5 is opened once within a certain period of time from the start of hot water supply from the faucet 8. In this case, the control device 4 outputs a signal from the running water switch 5. This is recognized as one time, and the amount of gas supplied is controlled so that the water supply temperature is set to a low temperature of 40°C. Also, Figure 2b
is a case where the flush water switch 5 is opened twice within the same fixed period of time; in this case, the control device 4 recognizes the signal from the flush water switch 5 as twice and sets the hot water temperature to a high temperature setting of 80°C. It is controlled so that

FIG. 4a shows the relationship between the faucet body 9 and the valve body 10 in the case of one-time opening in FIG. 3a. In this case, the valve body 9 is rotated 90 degrees from the closed state and the first The stopper 12a abuts against the locking pawl 9a in the state shown in Fig. 2, the water switch 5 is opened once, and the hot water temperature set by the control device 4 is 40°C, and hot water at that temperature is supplied to the faucet. Come out from the tip.

FIG. 4b shows the relationship between the faucet body 9 and the valve body 10 in the case of double opening as shown in FIG. 3b. In this case, the knob 13 is pushed down against the spring 11 from the state shown in FIG. With the stopper 12a eliminated from colliding with the locking pawl 9a and the knob 13 rotated from the 180 degree closed state to the 270 degree open state,
In this state, the second stopper 12b is
It collides with a and stops in this collision state. That is, in this state, the signal from the water flow switch 5 is opened twice, and the hot water supply temperature is set to a high temperature of 80°C.

As described above, the water heater of the present invention allows the setting of the hot water temperature to be switched by the desired selection operation of a single hot water faucet at the hot water supply location. This has the advantage that there is no need to go out to the installation location, and the operation can be easily performed, for example, in the kitchen or bathroom.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the configuration of the gas water heater of the present invention, Fig. 2 is a sectional view showing the configuration of the hot water faucet used in the water heater of the present invention, and Fig. 3 is a diagram showing the operation of the water switch and the set temperature. Figure 4 shows the relationship between
It is an explanatory diagram of operation showing the relationship between the faucet main body and the valve body at the time of switching between the two levels of elevation shown in the figure. In the figure, 1 is a boiler, 4 is a supply gas amount control device, 5 is a water flow switch, 7 is a hot water pipe, and 8 is a hot water faucet. In other figures, the same reference numerals indicate the same parts.

Claims (1)

[Claims] 1. A water flow switch that is installed in the water supply channel to the boiler and opens and closes depending on the movement of water in the water supply channel;
A control device that controls the amount of gas supplied according to the number of times the water switch is opened and closed, and once opened by turning 90 degrees to the hot water supply state, closed and restarted by turning another 180 degrees in the pressed state after opening. 2, which opens and closes the water flow switch and opens and closes the water switch.
It is equipped with a step-operated hot water faucet, and the control device allows the two-step operated hot water faucet to rotate only by 90 degrees.
A gas water heater characterized in that the water supply temperature of the boiler is changed to two predetermined high and low stages by either a stage operation or a two-stage operation in which the boiler rotates further by 180 degrees.