JPS6128923Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water mixing faucet that is mainly connected to a gas instant water heater type water heater.

In this way, the hot water mixing faucet connects the hot water side inlet of the mixing faucet body to the discharge side of the water heater, and connects the water side inlet to the discharge side of the water supply, etc., so that hot water and water from the water heater side are connected to the water supply side. It mixes the water from the tank and drains it.

By the way, the amount of heat of a water heater is determined by the heat output, water temperature, and discharge amount of the water heater itself; for example,
If the temperature of the water entering the water heater itself is low, the temperature of the water discharged from the water heater will be low, but on the other hand, if the discharge amount of the water heater is increased, the temperature of the water discharged from the water heater will also be low; It will be expensive. Therefore, in order to obtain the same hot water temperature in winter as in summer, it is necessary to reduce the discharge amount of the water heater, since the temperature of the water flowing into the water heater is extremely low compared to that in summer. In this case, it is possible to reduce the amount of hot water discharged using the operation handle on the hot water side.
For example, by setting the discharge rate on the hot water side to 5/min, hot water at a high temperature can be obtained while effectively utilizing the output of the water heater even in winter. However, it is difficult to adjust the discharge rate of hot water to 5/min using the operating handle on the faucet side. For example, if the discharge rate of a water heater reaches 3/min, the water heater's flame will turn off. There are some inconveniences when it disappears. On the other hand, in consideration of these points, when a hot water mixing faucet is connected to a water heater, a hot water flow control valve is installed on the water heater side, and in winter, this water flow control valve can be used to throttle the discharge amount. However, because the users lack knowledge in this area, they are limited to operating the faucet side, and the water heater's flame goes out as described above, leading to people thinking that it may be a malfunction. This caused problems such as receiving complaints. In addition, manufacturers of water heaters have also taken into consideration such troubles that users may encounter, and have installed flow control valves in the water heaters themselves, which can reduce the discharge amount regardless of whether it is summer or winter. However, doing so would result in not fully utilizing the heat output of the water heater in the summer.

The present invention was developed with the aim of solving these conventional drawbacks, and as mentioned above, it is possible to switch the mixing faucet between summer and winter without having to operate the water heater. Therefore, sufficient heat output can be utilized in the summer, and hot water at a sufficiently high temperature according to the user's needs can be obtained in the winter with a simple operation.

In order to achieve such a purpose, this invention has a hot water side inflow path 2 and a water side inflow path 3, and the hot water entering from the hot water side inflow path 2 and the water side inflow path 3 is mixed and discharged. In the hot water mixing faucet that leads to the outlet 4, the hot water side inflow path 2 is formed with a passage 11 through which a large quantity of hot water passes and a passage 12 through which a small quantity of hot water passes, and each of these passages 11,
12, and a constant flow valve 18 that allows a constant amount of hot water to pass regardless of the supply pressure is provided in the passage 12 that allows the small amount of hot water to pass through.

According to the present invention, the switching valve 15 is replaced by the constant flow valve 18.
By switching to the side, you can always obtain a constant flow of hot water.If the constant flow valve 18 is set to a flow rate that will provide a temperature of 70°C in winter, the switching valve High-temperature hot water can be easily obtained by performing only the operations in step 15.

The configuration of the present invention will be described below based on the drawings showing one embodiment.

1 to 3, 1 is a mixer faucet main body, and on both left and right sides of this mixer faucet main body 1,
A hot water inflow path 2 and a water inflow path 3 are formed with the inlets 2a and 3a opened on the back side, and these hot water inflow paths 2 and 3 are formed.
The water inlet passage 3 is bent at right angles inside the mixing faucet body 1 and reaches the hot water mixing part 29 in the center of the mixing faucet main body 1, and after being mixed in this mixing part 29, the mixed water is also The hot water flows out to a hot water outlet 4 formed on the lower surface of the stopper body 1. 5 shows a collar attached to this hot water outlet 4.

Reference numeral 6 denotes a handle shaft screwed onto the upper protrusion 7 of the mixing faucet main body 1 on the water inflow channel 3 side, and an operation handle 8 is attached to the upper end of the handle shaft 6.
However, similarly, a piece packing 9 is attached to the lower end of the handle shaft 6. This Komapatskin 9 is
The orifice 3b of the water inflow path 3 is faced, and by rotating the operating handle 8, the orifice 3b is opened by the piece seal 9.
b can be opened and closed, or the amount of water can be adjusted.

On the other hand, on the hot water inflow path 2 side, a box-shaped housing 10 is suspended downward from the upper wall surface of the mixing faucet main body 1, and hot water from the water heater flows through this housing 10.
The housing 10 includes a normal passage 11 that opens directly to the water inflow passage 3 side, and a constant flow passage 12 that opens to the opposite side.
The hot water from the constant flow passage 12 flows toward the water inflow passage 3 through a passage below the housing 10.

Reference numeral 13 denotes a valve case installed in the housing 10, and a ball valve 15 is inserted into the valve case 13 via a valve seat 14. The ball valve 15 has an inlet 15a that guides hot water entering the case 13 from the lower surface of the valve case 13 from inside the housing 10 into the ball valve 15, and an inlet. Hot water from 15a,
An outlet 15b leading to one of the normal passage 11 and the constant flow passage 12 is formed. Now, this outlet 15b communicates with the normal passage 11 side, so the hot water passes through this normal passage 11 and enters the water inlet passage 3.
It is designed to merge to the side, but the ball valve 15
When rotated by 180 degrees, the outlet 15b communicates with the constant flow passage 12, and hot water flows into the constant flow passage 12. Also, intermediate between these, i.e.
When the ball valve 15 is rotated 90 degrees from the state shown in the figure, it is in a closed state in which hot water does not flow in any direction.

Next, reference numeral 16 denotes a case lid that is attached to the constant flow passage 12 side and holds the ball valve 15 in the valve case 13. Furthermore, a strainer 17 is provided on the outside of the case lid 16. A constant flow valve 18 is attached to the outside of the constant flow valve 18, and in this embodiment, the constant flow valve 18 controls the hot water passing through the constant flow passage 12 at a set approximately constant level regardless of its supply pressure. I'm trying to keep the flow flowing. 1
Reference numeral 9 denotes a cap that holds the constant flow valve 18, strainer 17, and valve case 13 in the faucet body 1, and hot water passing through the constant flow passage 12 flows out from the cutout 19a of the cap 19.

The structure of the constant flow valve 18 is as shown in FIG.
1, 21..., and also the protrusion 2
A rubber ring 22 is externally fitted to 0a, and when the pressure becomes high, this rubber ring 22 is pressed in the direction of closing the through hole 21 part, reducing the flow rate, and when the pressure becomes low, the rubber ring 2
The through hole 21 is opened by the elasticity of 2, thereby allowing a constant flow rate to flow at all times.
In this case, the discharge amount should be adjusted in consideration of winter use.
The amount is set to be smaller than that on the normal passage 11 side.

In FIG. 3, 23 is a handle shaft that is fitted into the protrusion 24 on the upper surface of the mixing faucet main body 1 on the hot water inflow path 2 side, and the lower end of this handle shaft 23 is locked to the ball valve 15. Along with being
Similarly, the operating handle 2 is located at the top of the handle shaft 23.
5 is attached, and by rotating the operating handle 25, the ball valve 15 is rotated, thereby switching between the constant flow passage 12 and the normal passage 11, and switching between the constant flow passage 12 and the normal passage 11. The flow rate can be adjusted.

In addition, in the figure, 26 is a show/run switching handle, 27 is a show/run switching valve, and 2
Reference numeral 8 denotes a shower connection discharge port, but a detailed explanation thereof will be omitted.

Now, in the above configuration, the heat output of this type of water heater that is normally used is 18,000 kcal/H ~
24000kcal/H, for example, 24000kcal/H
Assuming that a water heater with a heat output of / minute or remove it. In this state, in winter, the hot water from the water heater is supplied to the constant flow passage 1 by the hot water side operation handle 25.
If you switch it so that it passes through 2, this constant flow passage 1
Since the amount of hot water on the second side is restricted, hot water of 70°C can be obtained by simply rotating the operating handle 25 to the specified position. On the other hand, in summer, if you operate the hot water side operation handle 25 and switch to open the normal passage 11 side, the water temperature flowing into the water heater is as high as about 25°C.
Even if a large amount of hot water is discharged, a sufficiently high water temperature of about 50° C. can be obtained, and therefore, it is possible to obtain a large amount of hot water by making maximum use of the output of the water heater. In this case, it is desirable to provide a sign on the hot water side operating handle 25 etc. to indicate the switching position of the operating handle 25 in winter and summer.

As described above, according to this device, a passage for passing a large amount of hot water and a passage for passing a small amount of hot water equipped with a constant flow valve are provided in the hot water inlet passage, and a switching valve is provided to selectively switch between these passages.Therefore, if the hot water flow rate of the constant flow valve is set to, for example, 5/minute, taking into account the water temperature in winter, high temperature hot water of 70°C can be obtained by simply switching the switching valve.As a result, there is no risk of trouble such as the hot water side operating handle being turned too hard and the water heater flame going out, and it is easy to operate the handle to obtain high temperature hot water in winter.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the faucet of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along line A-A in Fig. 1, and Fig. 4 is a sectional view taken along the line A-A in Fig.
The figure is an enlarged longitudinal sectional view of the constant flow valve. 1...Mixing faucet body, 2...Hot water inflow path, 3...
Water inflow channel, 4...Discharge port, 11...Normal passage, 1
2... constant flow passage, 15... ball valve (switching valve), 18... constant flow valve.

Claims (1)

[Scope of utility model registration request] A hot water mixing faucet has a hot water side inflow path and a water side inflow path, and mixes hot water that enters from the hot water side inflow path and the water side inflow path and guides the mixture to a discharge port,
In the hot water side inflow path, a passage for passing a large quantity of hot water and a passage for passing a small quantity of hot water are formed, and a switching valve is provided to selectively switch each of these passages, and the passage for passing the small quantity of hot water is provided. A hot water mixing faucet characterized by having a constant flow valve in a passageway that allows a constant amount of hot water to pass through regardless of the supply pressure.