JPS6128920Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a hot water mixing faucet used in a stop-off type hot water supply equipment such as an electric water heater.

[Conventional technology]

There are two types of methods for supplying hot water from a hot water supply equipment such as an electric water heater to a hot water mixing faucet: a source stop type and a first stop type. The source-stop type sends the water once supplied to the hot water mixing faucet to the hot water supply equipment, and then supplies hot water from the hot water equipment to the mixing faucet by the amount of water that has been supplied, and mixes it with water that is supplied separately. The hot water supply is controlled at the water inlet side of the hot water supply equipment. In addition, in the first stop type, hot water is constantly supplied from the hot water supply equipment to the mixing faucet, and the piping is arranged so that it mixes with the water supplied from the water supply source, and the supply of hot water is controlled at the hot water outlet side of the hot water supply equipment. The start stop type does not require pressure reducing valves, check valves, safety valves, etc. in hot water supply equipment, and has the advantage of being more cost-effective and safer than the first stop type, which requires these. Such hot-water supply systems that stop at the source are often used in bathroom vanities and the like in general houses where it is difficult to install large-scale central hot-water supply systems.

FIG. 8 is a partially sectional front view showing a hot water mixing faucet of a conventional stop-off type hot water supply equipment published in Japanese Utility Model Publication No. 55-40248. As shown in the figure, in the conventional stop-off type hot water mixing faucet 1, four pipe lines 2 to 5 are connected to a faucet body 13. The water pipe 2 is connected to the water passage chamber 6 in the faucet body 13 and the water pipe 14, and the water pipe 4 is connected to the water passage chamber 6 in the faucet body 13 and the water inlet 16 of the hot water supply equipment 11. There is. In addition, the water supply pipe 3 is a mixing chamber 7 between the water pipe 14 and the faucet main body 13.
The hot water supply pipe 5 is connected to the mixing chamber 7 and the hot water outlet 15 of the hot water supply equipment 11.
10 is a water supply handle installed at the top of the mixing chamber of the faucet main body 13, and at its tip there is a water supply valve 1 for adjusting the flow rate of water flowing into the mixing chamber 7 from the water supply pipe 3.
0a is attached. Also, 9 is the faucet body 1
This is a hot water supply handle installed on the upper side of the water passage chamber 3, and a hot water supply valve 9a for adjusting the flow rate of water flowing from the water conduit pipe 2 into the water passage chamber 6 is attached to the tip thereof. 8 is a discharge pipe communicating with the mixing chamber 7.

In the case of a hot water mixing faucet used in such conventional source-stop hot water supply equipment, the water supply handle 10
and the hot water supply handle 9 are opened to obtain warm water at an appropriate temperature by mixing hot water and cold water. water pipe 1
The water from the water pipe 4 is branched into two parts, one of which flows from the water pipe 2 into the water flow chamber 6 in the faucet body 13, and flows into the water pipe 4.
It reaches the water inlet 16 of the hot water supply equipment 11 through the. The other water then flows into the mixing chamber 7 from the water supply pipe 3. The hot water supply equipment 11 supplies hot water from the hot water storage chamber to the faucet main body 1 via the hot water supply pipe 5 in an amount equal to the amount of water supplied.
3 to the mixing chamber 7. Therefore, water from the water pipe 14 and hot water from the hot water supply equipment 11 flow into the mixing chamber 7, and both are mixed in the chamber 7 to become hot water and discharged from the discharge pipe 8.

If the temperature of the hot water is low, the water supply handle 10
The water supply equipment 11 can be rotated in the closing direction to narrow the opening of the water supply valve 10a to reduce the amount of water flowing in, or rotate the hot water supply handle 9 in the opening direction to increase the opening of the hot water supply valve 9a. The flow rate of hot water discharged from the hot water supply equipment 11 to the mixing chamber 7 may be increased by increasing the flow rate of water flowing into the mixing chamber 7. If the temperature of the hot water discharged from the discharge pipe 8 is high, perform the operation opposite to the above. Further, the flow rate of hot water discharged from the discharge pipe 8 is controlled by simultaneously operating the water supply handle 10 and the hot water supply handle 9. Of course, this hot water mixing faucet 1 can also discharge only water or only hot water, and in that case, the hot water supply valve 10a is
Only the hot water supply valve 9a may be opened.

[Problem that the invention attempts to solve]

By the way, the hot water mixing faucet 1 of the conventional stop-off hot water supply equipment requires four pipes 2 to 5,
The piping work was complicated. In addition, the hot water mixing faucet 1 of the conventional hot water supply system uses two handles, the water supply handle 10 and the hot water supply handle 9, to adjust the flow rate and temperature of water, hot water, hot water, etc. discharged from the discharge pipe 8. It is difficult to make adjustments, and the desired granules cannot be discharged quickly. In other words, there was a problem with its operability.

This invention improves and eliminates the above-mentioned drawbacks of the hot water mixing faucet used in conventional hot water supply equipment with a single lever. It is an object of the present invention to provide a hot water mixing faucet for use in a source shut-off type hot water supply equipment that can control how the water is turned off.

[Means for solving problems]

The means of the present invention for solving the above problems are as follows:
In a hot water mixing faucet used in a source-stop type hot water supply equipment, a mixing chamber communicating with a water discharge pipe is provided at the bottom side of the faucet body, a valve body chamber is provided at the top side of the mixing chamber, and the valve body A fixed disk having three through holes in the chamber and a movable disk having a distribution chamber on the lower side are arranged in close contact, and the three through holes of the fixed disk are used to connect the water supply pipe and the faucet main body. The mixing chamber is connected to a water pipe communicating with the water inlet of the hot water supply equipment, and the hot water pipe of the hot water supply equipment is connected to the mixing chamber.

[Effect]

As is clear from the embodiment shown in FIGS. 1 and 2, the handle 24 is rotatable both vertically and circumferentially, and by operating the handle 24,
It is possible to place the movable disk 31 in the positions shown in FIGS. 4 to 7 with respect to the fixed disk 28.
In the state shown in FIG. 6, the water supply hole 35 of the fixed disk 28 connected to the water supply pipe 34, the water supply hole 37 connected to the water inlet of the hot water supply equipment, and the water supply hole 29 communicating with the mixing chamber 25 are all connected to the water supply pipe 34. Movable disk 31
The water supply pipe 3 communicates with the distribution chamber 38 formed on the lower surface.
The water from 4 is supplied to the hot water supply equipment and mixing room 25, respectively.
supplied to When water is supplied to the hot water supply equipment, the amount of hot water flows into the mixing chamber 25 from the hot water outlet of the hot water supply equipment through the hot water supply pipe 27. Therefore, hot water and water flow into the mixing chamber 25 and are discharged from the discharge pipe 23 as warm water at an appropriate temperature. The temperature of the hot water and the discharge flow rate of the hot water at that time can be arbitrarily set by operating the handle 24 and adjusting the opening areas and opening ratios of the water supply hole 37 and the water introduction hole 29.

In addition, the movable disk 31 is shown in FIGS. 4, 5, and 7.
When the state shown in the figure is set, water can be turned off, hot water supply, and water supply can be used, respectively.

The configuration of the present invention will be described in more detail below based on the embodiments shown in the drawings.

〔Example〕

FIG. 1 is a perspective view of a hot water mixing faucet 21 used in a stop-start hot water supply system according to the present invention, FIG. 2 is a longitudinal cross-sectional view thereof, and FIG. 3 is an exploded longitudinal cross-sectional perspective view thereof. As shown in the figure, the hot water mixing faucet 21 has a faucet main body 22, a discharge pipe 23 attached to the side surface thereof, and an upper part of the faucet main body 22. It also has a handle 24 rotatably attached. The faucet main body 22 has a mixing chamber 25 formed on its lower side,
A valve body chamber 26 is formed on the upper side. Mixing chamber 2
5 communicates with the discharge pipe 23 at the side portion thereof, and the other end side of the hot water supply pipe 27 connected to the hot water outlet side of the hot water supply equipment is connected to the bottom wall thereof. Further, a through hole 30 communicating with a water introduction hole 29 of a fixed disk 28, which will be described later, is bored in the upper wall side of the mixing chamber 25.

On the other hand, in the valve body chamber 26, a fixed disk 28 and a movable disk 31 made of ceramic are arranged in close contact with each other. The fixed disk 28 is configured such that a concave portion 32 formed on its circumferential surface fits into a convex portion 33 on the inner wall of the valve body chamber, and its movement including the circumferential direction is restricted. Further, the fixed disk 28 is connected to the water supply pipe 3
4, a water supply hole 37 that communicates with the water pipe 36, and a water introduction hole 29 that communicates with the through hole 30 in the upper wall of the mixing chamber.
On the other hand, the movable disk 31 has a generally fan-shaped shape when viewed from above, and is smaller than the fixed disk 28. A distribution chamber 38 that can overlap each of the holes 35, 37, and 29 of the fixed disk 28 is recessed on the lower surface thereof, and a spherical tip 39a of an operating shaft 39 attached to the handle 24 is provided on the upper surface. A recess 40 to be fitted is formed. 41 is the operation axis 3
9 pivot pin. In addition, in Figure 3, 42
43 is a through hole that communicates with the water supply hole 35 of the fixed disk 28 at the close contact interface with the fixed disk 28, and 43 is a through hole that also communicates with the water supply hole 37 of the fixed disk 28. The other end of a water supply pipe 34 connected to a water pipe (not shown) is connected to the through hole 42, and the through hole 43 is connected to a water supply pipe connected to a water inlet of a hot water supply facility (not shown). The other end side of the water pipe 36 is connected.

Next, the operating mode of the hot water mixing faucet 21 used in the stop-off hot water supply equipment configured as described above will be described.

By placing the operating handle 24 in any vertical or circumferential position, the movable disc 31 can be moved in any direction on the fixed disc 28 via the operating shaft 39. Various positions and postures can be taken as shown in FIGS. 4 to 7. Now, assuming that the movable disk 31 is in the state shown in FIG.
1 distribution chamber 38. However, distribution room 38
are the water supply hole 37 and the water introduction hole 29 of the fixed disk 28.
Since the water supply hole 35 is not in communication with the water supply hole 37 and the water introduction hole 29, water is not supplied anywhere from the distribution chamber 38. That is, the hot water mixing faucet 21 is in a water-stop state.

When the movable disk 31 is in the state shown in FIG.
7 is in communication with the water supply pipe 34, and water supplied from the water supply pipe 34 flows into the inlet of the hot water supply equipment via the through hole 43 and the water pipe 36. For this reason, the hot water in the hot water storage chamber of the hot water supply equipment is pushed out according to the amount of water flowing in.
The hot water flows into the mixing chamber 25 via the hot water pipe 27 . At this time, the through hole 30 of the mixing chamber 25 is connected to the fixed disk 2.
Since the water introduction hole 29 of No. 8 is closed by the movable disk 31, the water supplied from the distribution chamber 38 does not flow into the mixing chamber 25, and only hot water from the hot water supply equipment is taken out from the discharge pipe 23.

Further, when the movable disk 31 is in the state shown in FIG. On the other hand, the water flows from the water supply hole 37 through the water supply pipe 36 to the water inlet of the hot water supply equipment, and the water flows from the hot water storage chamber to the hot water supply pipe 27 by that amount.
Hot water is supplied to the mixing chamber 25 through. On the other hand, water is directly supplied to the mixing chamber 25 from the water introduction hole 29 . Therefore, water and hot water are supplied to the mixing chamber 25, and after being mixed to become hot water at a predetermined temperature, it is taken out from the discharge port 23.

Furthermore, when the movable disk 31 is in the state shown in FIG. 7, the water supply hole 35 of the fixed disk 28 and the water introduction hole 29 communicate with each other in the distribution chamber 38, so that only the water supplied from the water supply pipe 34 flows into the mixing chamber 25. will be supplied. That is, in this case, only water is taken out from the discharge pipe 23.

In this way, the hot water mixing faucet 21 used in the main shut-off hot water supply equipment of this embodiment is a so-called single-use faucet that can be used in four ways: water stop, hot water supply, hot water supply, and hot water supply with a single handle operation. It is a lever type and is easy to operate. Also, the above 4
In the two usage modes, the flow rate and temperature can be easily adjusted by operating one handle 24 and changing the opening area of the water supply hole 37 and the water introduction hole 29 or the opening area ratio of the two holes 37 and 29. be.

By the way, the present invention is not limited to the above-mentioned embodiment, and for example, the water supply hole 35, the water supply hole 3
7. The size, shape, etc. of the water guide hole 29 etc. can be changed as appropriate.

[Effect of idea]

As explained above, in the case of the present invention, for hot and cold water mixing faucets used in source-stop hot water supply equipment, which conventionally required the operation of at least two handles, all uses can be done with just one handle operation. The configuration can be selected and the flow rate and temperature can be adjusted, making it easy to operate and quick to set. Furthermore, the number of pipes can be reduced by one compared to the conventional case, and the piping work can be simplified.

[Brief explanation of the drawing]

Figures 1 to 7 are related to the present invention,
FIG. 1 is a perspective view showing an embodiment of a hot water mixing faucet;
Fig. 2 is a vertical sectional view of the same, Fig. 3 is an exploded perspective view of a part of the hot water/cold water mixing faucet in longitudinal section, and Figs.
The figure is a plan view showing the hole relationship between the movable disk and the fixed disk when the water is stopped, hot water is supplied, hot water is supplied, and water is supplied. FIG. 2 is a front view of a part of the hot water mixing faucet in longitudinal section. 21... Hot water mixing faucet, 22... Faucet body, 2
3...Water pipe, 25...Mixing chamber, 26...Valve body chamber, 35...Water supply hole, 37...Water supply hole, 29...
Water guide hole, 28... Fixed disk, 38... Distribution chamber, 31... Movable disk, 34... Water supply pipe, 3
6...Water pipe, 27...Hot water pipe.

Claims (1)

[Scope of utility model registration request] In a hot water mixing faucet used in a source-stop type hot water supply equipment, a mixing chamber communicating with a water discharge pipe is provided at the bottom side of the faucet body, a valve body chamber is provided at the top side of the mixing chamber, and the valve body A fixed disk having three through holes in the chamber and a movable disk having a distribution chamber on the lower surface side are arranged in close contact with each other.
A water supply pipe, a mixing chamber of the faucet main body, and a water supply pipe communicating with a water inlet of the hot water supply equipment communicate with each other through the water supply pipes, and a hot water supply pipe of the hot water supply equipment communicates with the mixing chamber. A mixed tap with hot and cold water.