JPS6028848Y2 - Mixer faucet for solar water heaters in cold regions - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a mixing faucet that supplies water to a water heater using solar heat, introduces the generated hot water, and supplies hot water at an appropriate temperature by mixing the hot water and cold water. .

Conventionally, for example, as shown in FIG.
A separation plate 52 is installed vertically by simultaneous molding with 0, and a water tap part 53 is formed.
There was a system that suppressed the strong linear flow of pressurized fluid so as not to obstruct the supply of hot water to the hot water tap 54 side, which has lower pressure, but in this case, it was extremely difficult to mold, and the separating plate Due to the fragility of the thin wall at the tip, this part had the disadvantage of being extremely easy to break during molding.

In addition, a drain cock that also serves as a safety valve for a water heater, and has a water drain part and a water supply side switching part, was developed in 1985.
There is one shown in FIG. 2 (FIG. 6 of the drawings of the present application) of No. 1-120529.

To briefly explain the above FIG. 6, a cock body 55 that serves as both a safety valve and a drain cock has a valve port 56 and water supply to the water heater A on the same axis at both ends, and a water supply to the water heater A.
A through hole 57 through which steam is discharged when the internal pressure becomes abnormally high; a valve port 58 which automatically opens and closes depending on the steam pressure between the through hole 57 and the valve insertion port 56; It is equipped with a safety valve 59 that opens and closes depending on the water pressure and steam pressure, and a valve cylinder 64 having a discharge port 62 and a switching valve part 63 for switching the flow path between a water supply pipe 60 and a drain pipe part 61 is interposed.

In the above system, water droplets that form between the wide outer surface of the switching valve and the backing that covers the entire outer surface freeze and expand the backing, especially in the cold winter months. This caused deformation, resulting in frequent water and steam leaks.

This invention solves the above problems and makes the separating plate separate from the main body of the mixer faucet, making it possible to efficiently mold and assemble the main body and separating plate, and also to avoid a fixed assembly relationship. The purpose is to prevent early deterioration and damage of parts and members by eliminating the causes of wear and freezing due to

The basic structure of this device is that a water faucet with a check valve is installed almost in the center, and on both sides of the faucet there are branch valves for supplying water to the solar water heater and for draining water from the water supply pipe. A mixer faucet main body is provided, which includes a hot water supply chamber that communicates with the hot water supply faucet and a solar hot water heater to introduce hot water, and a first water supply that communicates with the hot water supply chamber that communicates with the hot water supply faucet through a valve opening, inside the main body. A communication hole communicating with the discharge pipe is provided in the center of the main body, and a seat is provided on the inner wall surface of the main body concentrically with the communication hole and facing vertically, and a seat is provided at one end. A joint material having a cross section with a seat plate is provided, and at the other end of this joint material, a separating plate is provided which has a branch ring that divides the interior into two by extension of the end and forms a branch passage hole. , the second water supply chamber and the hot water supply chamber are connected to each other by connecting the second water supply chamber and the hot water supply chamber to each other by connecting the second water supply chamber and the hot water supply chamber between the vertically facing communication hole and the seat so that the joint material is aligned on the same axis as the discharge pipe. The hot water and water are separated by the material so that they do not mix in the water supply room and the hot water supply room.

Hereinafter, embodiments of this invention will be described in detail based on the drawings.

This embodiment is based on the main body 1 of the mixing faucet shown in FIGS. 1 to 3.
has an almost inverted Y-shape in plan, and has a hydrant part 2 leading to the water supply source in the center, and a hot water tap part 3 and a branch hydrant part 4 on both sides, and the branch hydrant part 4 and the hydrant part 4 are provided on both sides. A branch water supply chamber 7 communicating with the first water supply chamber 5 through a valve port 6 is provided.

The communication hole 8 opens at the bottom of the main body 1 at approximately the middle of the second water supply chamber 9 and the hot water supply chamber 10, which are divided into two parts, and communicates with the discharge pipe 11. A seat 12 is provided concentrically on the wall surface, the switching valve rod 13 is inserted into the guide hole 15 of the main body 1 through the holding cylinder 14 and held, and the inner end has a double-sided valve that opens and closes the valve ports 6 and 16 alternately. Install valve 17,
The drain chamber 18 communicates with the branch water supply chamber 7 through the valve port 16, and a drain hole 19 is provided at the bottom.

As shown in FIGS. 4A to 8, the separation plate 20 is a flat joint member 2 with a T-shaped longitudinal section and a substantially circular seat plate 21 at one end.
2, and at the other end of this joint material 22 is a branched ring 2 which is annular and divided in the diametrical direction by the interposition of the extended end of the joint material 22.
3, and a small-diameter branch hole 24 communicating with the second water supply chamber 9 and a large-diameter branch hole 25 communicating with the hot water supply chamber 20 are formed inside the ring 23, and the seat plate 21 is An eccentric tenon 26 for preventing rotation is provided protruding from the outer surface.

This separation plate 20 has a branch ring 23 fitted into the communication hole 8 shown in FIG. 2, a seat plate 21 fitted into the seat 12, and a tenon 26
is fitted into the tenon hole 27 of the seat 12 to hold the separating plate 20 so that it does not rotate due to internal pressure.

Returning to FIGS. 1 and 2, the check valve 28 is connected to the water faucet portion 2.
The valve ports 31 and 32 are provided in the hot water faucet section 3 and the branch faucet section 4, and correspond to the valve ports 30 that communicate the water introduction chamber 29 and the first water supply chamber 5. The water supply chamber 9, the hot water supply chamber 10, and the hot water supply chamber 33 are arranged so as to be openable and closable by means of valves 34 and 35, and the entrance 36 of the hot water supply chamber 33 is equipped with a normal solar water heater installed on the roof of a house (both are shown in the figure). The lower end of the pipe 38 is attached to the outlet 39 leading to the branch water supply chamber 7, and the other end is connected to a normal water storage tank (not shown) with a ball tap of a solar water heater installed inside. (also not shown).

In order to supply water to the solar water heater in this invention, when the knob 40 shown in Figs. 1 to 3 is operated in the valve opening direction, the coaxial double-sided valve 17 is displaced in the direction of arrow P, and the valve opening is moved. 6 is opened and the valve port 16 is closed at the same time, leading to the water supply source.
The cold water that has reached the first water supply chamber 5 is continuously supplied to the water storage tank of the solar water heater through the valve port 6, the branch water supply chamber 7, the outlet 39 and the pipe 38, and when it becomes full, the pole tap is activated. to stop the water supply.

Next, when taking out hot water at an appropriate temperature from the discharge pipe 11, the valve 35
When the valve port 32 is opened by operating the valve in the valve opening direction, the hot water in the solar water heater descends through the pipe 37 and enters the inlet 36 of the main body 1.
reaches the hot water supply chamber 10 through the hot water introduction chamber 33 communicating with the inlet 36, collides with the separation plate 20 arranged to block the flow direction in the chamber 10, and the separation plate 20 As shown in FIG. 2, the water flows down into the separation hole 25 which opens downward at right angles along the surface of the hole 25, and is introduced into the discharge pipe 11 communicating with the hole 25. supply hot water.

At this time, if the water temperature is too high for use,
When the valve 31 of the branch hydrant section 4 shown in FIG. It moves in the flow direction within the chamber 9 and collides with the separation plate 20 that blocks the flow direction,
While flowing at right angles along the surface of the separation plate 20, it flows down into the branch hole 24 which opens downward, and while being mixed with the hot water flowing out from the branch hole 25, the water temperature changes to an appropriate temperature and flows into the discharge pipe. 11 to the outside.

If only cold water is required, the valve ports 6 and 32 may be closed.

In this case, when the valve port 6 is closed, the valve port 16 is opened as shown in FIGS. 1 and 2, so the cold water in the raised pipe 38 connecting the outlet 39 and the solar water heater is The water flows backward through the interior, reaches the outlet 39, the valve port 16 and the drain chamber 18, and is discharged to the outside through the drain hole 19 communicating with the numeral 18 each time.

Therefore, the pipe 38 on the water supply side and the branch water supply room 7 in cold regions
Freezing inside can be prevented without much effort.

Since this invention has the above configuration, it has the following advantages.

(1) In order to mold the main body and the separation plate separately, 1.
Due to the simplicity of the internal structure of the main body, the defect rate during molding can be significantly reduced, and the strength of the separator plate can be significantly increased since it is not limited by wall thickness.

(2) A double-sided valve is interposed between the valve ports facing the branch water supply chamber, so that when the water supply side valve port is closed, the drain side valve port opens, so that the water supply pipe is closed at the same time as the water supply is stopped. Since internal drainage is automatically carried out, there is no fear of freezing even when used in cold regions, and damage to parts and members due to freezing can be prevented, and water leakage can be reliably prevented.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted plan sectional view of the main project, Fig. 2 is a front sectional view taken along line A-A in Fig. 1, and Fig. 3 is a partially omitted plan sectional view of Fig. 2. In Fig. 4, A is a plan view of the separation plate; FIG. 6 is an explanatory diagram of the prior art. Explanation of symbols of main parts, 1...Main body, 2...
...Water tap part, 3...Hot water tap part, 4...
... Branch hydrant section, 5... First water supply room, 6...
... Valve port, 7 ... Branch water supply room, 8 ...
...Communication hole, 9...Second water supply chamber, 1o...Curved water supply chamber, 11...Discharge pipe, 12...Seat,
13... Curved switching valve stem, 17... Double-sided valve, 18...
...Drain room, 19...Drain hole, 20...
... Separation plate, 21 ... Seat plate, 22 ...
...Join material, 23...Branch ring, 24.25...
...Branch passage hole, 28...Check valve.

Claims (1)

[Scope of utility model registration request] A hydrant section 2 having a check valve 28 is provided approximately in the center, and on both sides of the hydrant section 2 there are branch hydrant sections 4 for supplying water to the solar water heater and for draining water from a water supply pipe 37, and a solar heating section. A hot water supply chamber 10 is provided with a hot water supply tap section 3 that introduces hot water through a water heater, and a hot water supply chamber 10 that communicates with the hot water supply tap section 3 inside, a first water supply chamber 5 and a second water supply chamber 9 that communicate with each other through a valve port 31. A mixing faucet main body 1 is formed, and a communication hole 8 communicating with a discharge pipe 11 is provided in the center of the main body 1, and a seat 12 is provided on the inner wall surface of the main body 1 facing concentrically with the communication hole 8, A joint material 22 having a cross section with a seat plate 21 at another end is provided, and this joint material 2
At the other end of 2, a separation plate 20 is provided which has a branch ring 23 whose interior is divided into two by extension of the end thereof, forming branch passage holes 24 and 25. By aligning the joint material 22 and the discharge pipe 11 on the same axis between them, the second water supply chamber 9 and the hot water supply chamber 1 are connected.
Mixed water for solar water heaters in cold regions, characterized in that 0 is separated by a joint material 22 of a separation plate 20, and hot water and water are not mixed in the second water supply chamber 9 and the hot water supply chamber 10. plug.