JP2639905B2 - Mixing valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mixing valve for use in solar systems utilizing positive heat water heater thick.

[0002]

2. Description of the Related Art In the above-described solar system, hot water introduced from a solar water heater can be used in a kitchen or a bathroom by controlling the temperature of the hot water with a mixer tap, and significant energy savings can be achieved. As such a mixing tap, a so-called two-valve type has been adopted.

[0003]

However, in the two-valve type, two handles must be operated, and the handling operation is complicated.

[0004] In addition, since two valves are provided, there are drawbacks in layout that they are bulky and require a large space, and the cost is high.

It is also desirable that the mixing tap be provided with a temperature adjusting means for further energy saving.

The present invention has been made in view of such circumstances,
The purpose is to provide a compact and inexpensive mixing valve with good operability.

[0007]

According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, a hot water inlet connected to a hot water supply pipe derived from a solar water heater, a water inlet connected to a water pipe, a hot water chamber provided at the hot water inlet, and a hot water chamber provided at the water inlet A water chamber, a mixed water flow path communicated with the hot water chamber and the water chamber via a thermocartridge, a temperature control member connected to the thermocartridge, and a hot water flow path communicating with the hot water chamber;
A water flow path communicating with the water chamber, a mixed water flow path, a hot water discharge port, and a hot water discharge faucet communicating with the mixed water flow path, the hot water flow path, and the water flow path through a switching tap. Do not equip the main body with a switching handle connected to the stopper rod.
By switching the switching handle, the solar water heater
The temperature of the hot water derived from it is adjusted to an appropriate temperature and supplied to the boiler
It is characterized in that.

[0008]

[Action] After setting the temperature of the mixed water with the temperature control member,
By operating the switching handle, mixed water or water at a predetermined temperature can be discharged from the discharge port or hot water can be discharged from the faucet.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the mixing valve of the present invention will be described below in detail with reference to the drawings. 1 to 4 show the configuration of the mixing valve 1. In FIG. 4, reference numeral 2 denotes a hot water chamber, which is connected to, for example, a hot water supply pipe 3 (see FIG. 5) derived from a solar water heater (not shown). Hot water inlet 4 (see Fig. 2)
It is provided inside. 5 is a water chamber provided inside a water inlet 7 (see FIG. 2) connected to a water pipe 6 (see FIG. 5), 8 is a hot water flow path communicating with the hot water chamber 2, and 9 is a water chamber 5 The communicating water flow path 10 is a mixed water flow path communicating with the hot water chamber 2 and the water chamber 5 via the thermo cartridge 11, and the temperature control member 12 is connected to the thermo cartridge 11.

The above-mentioned thermocartridge 11 has an outer cylinder 13.
A slidable valve element 14 is housed in the inside, and is detachably fitted in one body 1a.
The gate 13a and the gate 13b are opened so as to face the hot water chamber 2 and the water chamber 5, respectively, while the mixed water outlet 13c is opened facing the mixed water flow path 10.

The valve body 14 is urged leftward in the figure by a return spring 15, and its tip is connected to a rotatable temperature control member 12 screwed to the body 1a. By the turning operation of the adjusting member 12, the position of the valve body 14 is variably adjusted in the axial direction, so that the mixing ratio of hot and cold water can be appropriately adjusted. That is, when the valve element 14 is moved rightward from the illustrated position, the proportion of hot water increases, and when the valve body 14 is moved leftward, the proportion of water increases. As described later, when a boiler 16 (see FIG. 5) is connected to the mixing valve 1, the temperature of the mixed water is set to 35 ° C. ± 5 ° C.
It is preferable to set

The above-mentioned temperature control member 12 has a threaded groove 12a formed in the head thereof, and has a core bearing 18 urged rightward in the figure by a spring 17 in the interior thereof. It is connected to the head of the valve body 14 via the plate 19. In FIG. 4, reference numeral 20 denotes a trunk body 1 via an O-ring 21.
This is a retaining cap screwed to a.

Incidentally, a desired temperature of the mixed water can be easily obtained by attaching a scale of the set temperature to the temperature control member 12 and attaching a handle.

The hot water chamber 2 provided at the hot water inlet 4 described above,
A check valve 22 with a strainer is provided in the water chamber 5 (see FIG. 3) provided in the water inlet 7. The check valve with strainer 22 includes a U-shaped net 24 fixed to one end of a main body 23, a packing receiver 26 urged leftward by a spring 25, and an O-ring fixed to the other end of the main body 23. And the cap 27
Is detachably screwed to and attached to the other body 1b, and the valve port is normally closed at the position shown in the figure by an O-ring 28 wound around the packing receiver 26, and the hot water flow path 8 and The backflow from the water flow path 9 is prevented.

When hot water or water is supplied from the hot water inlet 4 or the cold water inlet 7, the packing receiver 26 is moved rightward in the drawing against the urging force of the spring 25, and After the hot water or the water is filtered, it is supplied to the hot water flow path 8 or the water flow path 9. In FIG. 3, reference numeral 26a is a guide blade fixed to the packing receiver 26.

The switching of each of the flow paths 8, 9, and 10 described above
This is performed by a switching tap rod 31 shown in FIG. 1. The switching tap rod 31 is formed in a cylindrical shape, and is rotatably provided in the body 1b coaxially with the faucet 32. A handle 33 is attached.

The switching plug 31 has openings a, having phases different from each other at levels corresponding to the flow paths 8, 9, 10, respectively.
b and c are opened, a cap 34 with an O-ring is fitted between the opening a and the opening b, and the opening b and the opening c
An opening d corresponding to the discharge port 35 is opened at an intermediate portion between the two.

A sheet packing 37 is fitted in each of the flow paths 8, 9 and 10 facing the switching plug 31, and the cap 3 with an O-ring screwed to the body 1b.
The sheet packings 37 are biased against the outer peripheral surface of the switching plug 31 by the springs 39 interposed between the switching plugs 31 and.

It should be noted that one trunk body 1a and the other trunk body 1
b is integrated by mounting screws s, s (see FIG. 2) to facilitate manufacture.

With such a configuration, in the state shown in the figure, the mixed water flow path 10 communicates with the discharge port 35, and when the switching handle 33 (see FIG. 3) is rotated counterclockwise by 90 degrees, the opening b is opened. Communicating with the discharge port 35 corresponding to the water flow path 9,
When the switching handle 33 is rotated clockwise by 90 degrees,
The opening a corresponds to the hot water flow path 8 and communicates with the faucet 32.

Therefore, by simply operating the switching handle 33, hot water can be supplied from the faucet 32 and the discharge port 35 can be supplied.
Thus, mixed water or water can be selected and discharged, respectively, and the operability is extremely good.

Further, the fluid from the three flow paths 8, 9, and 10 can be appropriately switched in two directions by a single switching tap rod 31, so that the number of parts is reduced, the size is reduced, and the cost is reduced. Cheaper can be realized. And, by the built-in thermo cartridge 11,
The advantage of being able to adjust the temperature appropriately is also great.

FIG. 5 shows an example of a connection pipe of the solar system. Reference numeral 41 denotes a hot water supply pipe connected to the faucet 32 of the mixing valve 1, reference numeral 42 denotes a mixed water pipe connected to the discharge port 35 of the boiler 16, 43 is both pipes 41,
42 is a faucet pipe which is connected to the tap 42.

With such a configuration, when hot water of sufficiently high temperature can be obtained from the solar water heater in summer or the like, hot water can be supplied from the mixing valve 1 to the hot water supply pipe 41 as it is (the switching handle 33 from the state of FIG. 3). 9
In a case where hot water boiled by the boiler 16 is supplied, mixed water whose temperature has been adjusted to about 35 ° C. by the mixing valve 1 is once supplied to the boiler 16. (The state shown in FIG. 3) , it is possible to efficiently heat and obtain an energy saving effect.

[0025]

As described above, according to the mixing valve of the present invention, the water is supplied from the hot water supply pipe and the water pipe drawn out of the solar water heater by the switching tap rod connected to the single switching handle. Hot water and water can be selected and supplied as mixed water, water and hot water, respectively, so that the operability is extremely good and the number of parts is reduced,
It can be formed compactly, installed with good workability, saves space, and can be provided at low cost. The built-in thermo cartridge makes it easy to control the temperature of the mixed water, and when using a boiler , it supplies water at an appropriate temperature to efficiently heat the mixed water.
There is also an advantage that the energy saving effect can be obtained .

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a mixing valve of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a partial sectional plan view of the same.

FIG. 4 is a sectional view taken on line XX of FIG. 3;

FIG. 5 is an explanatory diagram showing an example of a connection pipe of the solar system.

[Explanation of symbols]

1. Mixing valve, 2. Hot water chamber, 3. Hot water supply pipe, 4.
Hot water inlet 5 water chamber 6 water pipe 7 water inlet 8
Hot water channel, 9 water channel, 10 mixed water channel, 11 thermo cartridge, 12 temperature control member, 31 switching tap bar, 32
... faucet, 33 ... switching handle, 35 ... discharge port.

Claims (1)

(57) [Claims] 1. A hot water inlet connected to a hot water supply pipe led from a solar water heater, a water inlet connected to a water pipe, a hot water chamber provided at the hot water inlet, and the water inlet A mixed water flow path communicated with the hot water chamber and the water chamber via a thermo cartridge, a temperature control member connected to the thermo cartridge, and a hot water flow path communicating with the hot water chamber, A water flow path communicating with the water chamber, a mixed water flow path, a hot water discharge port, and a hot water discharge faucet communicating with the mixed water flow path, the hot water flow path, and the water flow path through a switching tap. Ri and a switching handle connected with the plug rod greens and provided to the body, thick by switching of the switching handle
Adjust the temperature of the hot water derived from the positive water heater to an appropriate temperature
A mixing valve that is supplied to an iller.