JPH01242880A - Hot water and cold water mixer - Google Patents

Abstract

PURPOSE:To make it possible to use hot water and cold water even at an abnormal time by providing passage change-over valves at the primary sides of a cold water supply connecting port and a hot water supply connecting port respectively and making it possible to change over a hot and cold mixed water plug side passage and a bypass side passage by the passage change-over valve. CONSTITUTION:A passage change-over valve 14 for changing over a hot and cold mixed water plug side passage 17, a cold water side bypass passage 18 and a hot water bypass passage 18 are provided at the primary sides of a cold water supply connecting port 5 and a hot water supply connecting port 6. Accordingly, in case that a hot and cold mixed water plug 16 falls into disuse due to anything abnormal, hot water can be used by changing over the passage changing-over valve 14 to the water side and the hot water side bypass passages 18, 19.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hot water supply device and a hot water mixing device provided at a terminal of the water supply device.

2. Description of the Related Art Conventionally, there has been a hot water mixing device of this type as shown in FIG.

FIG. 6 shows a conventional hot water mixing device, in which hot water and water supplied via hot water piping 1 and water piping 2 are connected to connecting tube 3.
4, and is introduced into the mixing faucet body 7 via a water supply connection port 5 and a hot water supply connection port 6. The mixing faucet body 7 is provided with a temperature control knob 8 and a hot water output setting knob 9. Also, the mixing faucet body 7
is provided with a knob 12 for switching the flow path to the shower hose 1o and the discharge pipe 11. The discharge pipe 11 is installed in the section 13.
It is provided so that it can rotate left and right around the center.

Problems to be Solved by the Invention However, in the above configuration, the temperature control knob 8, the hot water supply amount setting knob 9, and the flow path switching knob 12 between the shower hose 10 and the discharge pipe 11, which are provided on the mixing faucet body 7, ,
When the mounting part 13 of the discharge pipe 11 and the like is used for many years, abnormal phenomena such as water leakage due to deterioration of the backing or malfunction may occur, requiring repair or replacement. However, since the mixing faucet main body 7 is directly connected to the water supply connection port 6 and the hot water supply connection port 6 from the hot water pipe 1 and the water pipe 2 via the connection tube 3.4, if you try to cut off the hot water supply, each It cannot be shut off unless the household water supply source Pulp (not shown) is closed. As a result, while you discover an abnormality and request a repair company to repair or replace it, you will not be able to use hot water for bathing, cooking, etc.
She had the problem of not being able to do any housework such as laundry.

The present invention is intended to solve the above-mentioned problems, and provides a hot water mixing device that allows hot water to be used even if the mixing faucet main body becomes unusable due to some abnormality.

Means for Solving the Problems In order to solve the above problems, the hot water mixing device of the present invention includes a hot water mixing faucet having a water supply connection port, a hot water supply connection port, and a water discharge connection port, a water supply connection port, and a hot water supply connection port. The connection port has separate flow path switching valves provided on the primary side, and the flow path switching valves are configured to switch the water supply and hot water supply between the hot water mixing faucet side flow path and the bypass side flow path. .

Effect With the above configuration, if the hot water mixing faucet becomes unusable due to some abnormality, hot water can be used by operating the flow path switching valve and switching the water supply and hot water supply flow paths to the bypass side flow path. .

EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings. Note that the same components as in the conventional example are given the same reference numerals, and detailed explanation thereof will be omitted. Figure 1.

In FIG. 2, hot water is introduced into the respective flow path switching valves from the hot water pipe 1 and the water pipe 2, and the flow path switching handle 16
The water stops (Fig. 2 (IL1 state)), or
Hot water mixing faucet 16 side flow path 17 (state shown in FIG. 2(b)),
Or water side bypass flow path 18/hot water side bypass flow path 19 (
It is switched to FIG. 2 (CI state B).

During normal use, the hot water flow path is switched to the hot water mixing faucet 16 side by setting the flow path switching valve to the state shown in FIG. 2(b). The switched hot water is introduced into the hot water mixing faucet 16 through the water supply connection port 6 and the hot water supply connection port 6. Although the introduced hot water is not shown, it is mixed to an appropriate temperature by the mixing valve of the hot water mixing part in the hot water mixing faucet 16, and then introduced into the special four-way nipple 21 through the water spout connection port 2o with a reverse function, and then through the water spout piping 22. It is supplied from the water spout 26 (see FIG. 3 (IL)).

Further, if some abnormality occurs in the hot water mixing faucet 16 and it becomes unusable, water can be shut off by setting the flow path switching valve to the state shown in FIG. 2(a). Therefore, water can be easily stopped when placed in the bathroom, and there is no adverse effect on other areas.

If hot water is desired to be used even in an abnormal situation, the hot water flow path is switched to the water/hot water side bypass flow path 18, 19 by setting the flow path switching valve to the state shown in FIG. 2(C). By doing so, the hot water flows into the hot water side bypass channels 18 and 19, is introduced into the respective special four-way nipples 21, and is supplied to the water spout 26 via the water spout piping 22. At this time, by changing the degree of opening and closing of the flow path switching handle 16, the amount of hot water flowing into the hot water side bypass flow paths IEl, 19 can be changed.

As a result, the mixing ratio of hot water and water changes within the special four-sided nipple 21, and the hot water is supplied at an appropriate temperature without impairing the usability of the hot water.

In addition, backflow from the water/hot water side bypass channels 18, 19 to the hot/cold water mixing faucet 16 is prevented by the water spout connection port 20 with a check function.

3 and 4 respectively show general installation examples of the hot water mixing device of the present invention, and FIG. 3 (2L) shows the hot water mixing device of the present invention installed in the apron 24 of the bathroom 23. FIG. Figure 4 (I
L) is a perspective view showing the hot water mixing device of the present invention installed on the outer wall 26 of the bathroom 23, and (b) is a side view of the same. The flow path switching valve is a valve that is used in emergencies, so it is installed so that it is not very noticeable, and when it is installed inside the apron 24 of the bathroom 23, it is installed in the lower part of the apron 24 so that it can be easily operated in the event of an emergency. Looking at the flow path switching handle 16.

Further, in the case of installing the outer wall 26 of the bathroom 23, only the flow path switching handle 16 is visible inside the bathroom 23.

In this way, it can be simply installed both inside and outside the bathroom 23, making it more noticeable, and has the effect of being easy to operate in the event of an abnormality.

Effects of the Invention As described above, according to the hot water mixing device of the present invention, the following effects can be obtained.

(1) Even if some abnormality occurs in the hot water mixing faucet and it becomes unusable, water and hot water can be used not only in the kitchen but also in the bathroom without any problem.

(2) Even in the event of water leakage or water stoppage failure from the hot water mixing faucet body or piping connection port, the water can be easily stopped and there will be no negative impact on other areas.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a hot water mixing device that is an embodiment of the present invention, FIG. 2 is a schematic structural diagram showing the state of the flow path switching valve of the device, and FIGS. 3 and 4 are This is a diagram showing the installation state of a hot water mixing device in a bathroom, which is an example.
is a perspective view, FIG. 6(b) is a side view, FIG. 6(IL) is a side view of a conventional hot water mixing device, and FIG. 6(b) is a front view. 6...Water supply connection port, 6...Hot water supply connection port, Flow path switching valve, 16...Hot water mixing faucet, 17... ... Hot water mixing faucet side flow path, 18.
...Water side bypass flow path, 19...Hot water side bypass flow path, 2o...Water outlet connection port. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure (al Figure 3 (Q) Figure 3 Figure 4 Figure 4 available) Figure 5 (a)

Claims (4)

[Claims] (1) A hot water mixing faucet having a water supply connection port, a hot water supply connection port, and a water discharge connection port, and a flow path switching valve provided separately on the primary side of the water supply connection port and the hot water supply connection port. The hot water mixing device is configured such that the flow path switching valve switches water supply and hot water supply between the hot water mixing faucet side flow path and the bypass side flow path. (2) A hot water mixing faucet having a water supply connection port, a hot water supply connection port, and a water discharge connection port, and a flow path switching valve provided separately on the primary side of the water supply connection port and the hot water supply connection port. A hot water mixing device configured to connect a bypass side flow path of the water supply connection port side flow path switching valve and a bypass side flow path of the hot water supply connection port side flow path switching valve. (3) The hot water mixing device according to claim 1 or 2, wherein the plurality of water discharge connection ports also have a check valve function. (4) The hot water mixing device according to claim 1 or 2, wherein the flow path switching valve also has a water shutoff function.