JPH0429684A - Hot-cold water switching valve for combination faucet - Google Patents

Abstract

PURPOSE:To make switching easily and surely possible of hot/cold water and further delivery efficiently possible of only the cold water by constituting a valve of a case provided with a hollow part having an opening part, outer cylinder, water circulation path of communicating with a hot water flow path from a pair of hot/cold water circulation paths and from a separate water flow path and an inner cylinder. CONSTITUTION:There are provided a pair of hot/cold water side connection paths 5, 6 vertically inserted, case 8 having a hollow part 7 orthogonal to both the connection paths 5, 6, outer cylinder 10 having an opening part 9 respectively corresponding to both the connection paths 5, 6 and an inner cylinder 15 provided with a water circulation path of communicating with a delivery water port 14 from an introducing port 13 and having a pair of mutually parallel hot/cold water circulation paths 11, 12. The inner cylinder 15 is rotatably mounted to the inside of the outer cylinder 10 through a separate O ring 18. In this way, switching of hot/cold water can be simply and easily performed by a single valve. Simplification of structure and compactness of the hot/cold water switching valve are contrived, and the hot/cold water switching valve of a combination faucet at a low cost is realized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hot water switching valve for a mixed faucet. More specifically, this invention makes it easy to switch between hot and cold water.
The present invention relates to a switching valve for a mixing faucet that can reliably and efficiently spout only water.

(Prior art) Faucet devices used for hot water supply systems in washrooms, restrooms, bathrooms, kitchens, etc. in residential buildings have been becoming more sophisticated and have higher performance. , various types have been developed so far.

For example, we have developed a double-handle mixer faucet (A) equipped with a hot water supply valve (A) and a water supply valve (B) as shown in Figure 10, as well as the one shown in Figure 11. The single-lever mixer faucet (a) allows switching and mixing hot water and water with a single lever, and as shown in Figure 12, the water temperature can be easily adjusted and the water temperature can be set to the desired temperature. A thermostatic mixing faucet (1) equipped with a temperature control handle (2) that can be adjusted is known.

In addition, an electronic mixing faucet (O), which omit valves and handles, as shown in Figure 13, has also been proposed.Simply by operating a button on the panel, hot water and water can be switched and mixed. We are trying to make it easy to supply hot water to (power).

(Problems to be Solved by the Invention) However, in the conventional hot water/water supply system using the mixer faucet illustrated in FIGS. 10 to 13, for example, when fishing on a boat, A hot water valve (ge) is installed in the hot water flow path (ri) of the hot water supply system (g), and a water valve (shi) is installed in the water flow path (su) of the water supply system (g). Since the configuration is such that the water flow path and water flow path are connected to the mixing valve, it is difficult in many countries to discharge only water without changing the temperature set by a thermostat, etc., or to discharge water efficiently. there were.

For example, the thermostatic mixing faucet (1
) as a mixing valve, even if you try to spout only water, the thermostat will operate and the water valve (scheme shown in Figure 14) will operate because the thermostat is set at a predetermined temperature. ) close or narrow the hot water valve (ge)
Therefore, when discharging water, the water side opening of the mixing valve (S) is closed or narrowed, making it impossible to discharge only water. As described above, when using a thermostatic mixing faucet (1), it has hitherto been impossible to discharge only water without changing the set temperature of the thermostat.

In addition, the double handle mixing faucet (A) illustrated in Figure 10
When using the single-lever mixing faucet (a) shown in FIG. 11 as a mixing valve (s), when the hot water valve (e) shown in FIG.
As shown in the figure, the hot water channel is completely closed, the amount of water flowing to the spout is reduced compared to when hot water is mixed, and the water spouting efficiency is significantly reduced. There is.

On the other hand, in the case of an electronic mixing faucet (E) as illustrated in Fig. 13, a motor is attached to the temperature control handle (X) as illustrated in Fig. 12, and the temperature setting is switched by the motor drive. The temperature setting can be changed automatically by simply operating a button on the operation panel, which has the advantage of easily switching to discharging only water.

However, in this case, since the temperature control handle is driven by a motor, the mechanism of the electronic mixing faucet (e) itself is rather complicated and has the disadvantage of being high in cost.

Therefore, as a solution to the drawbacks of switching hot water and cold water using conventional mixer faucets, a hot water valve (
Before connecting the hot water flow path (ri) and water flow path (su) having a hot water flow path (ri) and a water valve (shi) to the mixing valve (su), A hot water switching structure has been proposed in which a bypass valve (Y) is provided in the communication path (S). In this structure, solenoid valves, electric valves, etc. are used as the hot water valve, water valve, and bypass valve, allowing automatic switching between hot and cold water with a single touch without changing the hot water temperature setting. That's what I do.

However, in this case, three hot water switching valves (
Since it uses a ge)(shi)(yu), it is not necessarily cheap, and the hot water switching structure itself is complicated, and there are problems such as the need for space for installing the valve.

This invention was made in view of the above-mentioned circumstances, and it solves the drawbacks of conventional mixer faucets and makes it possible to easily and reliably switch between hot and cold water without changing the temperature setting. , and can efficiently discharge only water.
The purpose is to provide a new mixer faucet hot water selector valve.

(Means for Solving the Problems) This invention solves the above problems by providing hot water supply and
It has a hot water flow path and a connection path to the water flow path consisting of the water supply system,
A case with a hollow part in the longitudinal direction, an outer cylinder that has openings corresponding to the connection paths of the case, and is loaded and sealed in the hollow part of the case, and a pair of flow paths for each of hot water and this flow path are separate from each other. and a water flow path communicating from the water flow path to the hot water flow path,
To provide a hot water switching valve for a mixed faucet characterized by comprising an inner cylinder rotatably loaded into an outer cylinder.

(Function) In the hot water switching valve for a mixed faucet of the present invention, a hollow portion provided in the longitudinal direction of the case having a connection path to a hot water flow path and a water flow path has openings corresponding to the connection paths of the case. At the same time, the inner cylinder is rotated, which has a pair of flow passages for each of hot water and a water flow passage that communicates with the hot water flow passage from a water flow passage different from these flow passages. Since it can be loaded freely, the inner cylinder can be rotated by a motor or the like to easily switch between hot and cold water. Only water can be simply and easily spouted without changing the set value of the hot water temperature. Moreover, since water can also pass through a part of the hot water flow path, a sufficient amount of water can be ensured.

(Example) Hereinafter, examples will be shown along with the drawings, and the hot water switching valve of the mixed faucet of the present invention will be described in more detail.

FIG. 1 is a cross-sectional view showing one embodiment of the hot water switching valve of a mixing faucet of the present invention, and FIGS. 2, 3, and 4 respectively show the switching valve illustrated in FIG. 1. FIG. 2 is a perspective view illustrating a case, an outer cylinder, and an inner cylinder that constitute the.

In the hot water switching valve shown in this example, a pair of vertically penetrating valves are connected from the hot water supply system (1) to the mixed faucet water supply system (2) and from the water supply system (3) to the mixed faucet water supply system (4). A case (8) having a hot water side connection path (5), a water side connection path (6), and a hollow portion (7) orthogonal to these connection paths (5) and (6); The outer Il! has openings (9) corresponding to the hot water side connection path (5) and the water side connection path (6), respectively. ! j (10), a pair of submerged flow passages (11) and water flow passages (12) parallel to each other, and a fourth
As shown in the figure, unlike these flow passages (11) and (12), only water is introduced into the mixed faucet hot water supply system (Figure 1).
2) and an inner cylinder (15) provided with a water flow path that communicates from the inlet (13) to the water outlet (14) through which only water flows out to both the water supply system (4) and the mixed faucet water supply system (4). . The outer cylinder (10) also shown in FIG.
) and sealed with an O-ring (16) and grommet (17) as shown in Figure 1. Aperture(
9) is aligned so as to face the hot water side connection path (5) and the water side connection path (6) of the case (8). On the other hand, the inner Fj (15) is rotatably loaded inside the outer cylinder (10) via another O-ring (18), as shown in FIG. There is no particular restriction on the means for driving the inner cylinder (15), and for example, a motor or the like can be used. Further, threaded portions (19) for piping for connection to the hot water flow path and the water flow path are provided on the upper and lower outer circumferential surfaces of the connection paths (5) and (6) of the case (8).

For example, FIG. 5 shows an example of the operation of the hot water switching valve of the mixing faucet of the present invention having the above configuration.

(a) For example, when dispensing hot water at a set temperature, the inner cylinder (15) is rotated by a motor, etc., and the submerged flow path (11
), hot water supply system (1), and mixed faucet hot water supply system (2), that is, hot water side connection path (5), water flow path (12), and water supply system (3)
and the mixed faucet water supply system (4), that is, the water side connection path (6
). In this way, the hot water and the hot water each flow out at a flow rate corresponding to the set temperature.

<b> On the other hand, when discharging only water, the inner cylinder (
15) to align the water inlet (13) with the water supply system (3). At this time, the hot water side connection path (5) of the case (8)
) is closed, and at the same time, the spout (
14) and the hot water side connection path (5) and water side connection path (6) of the case (8) are aligned. The inlet (13) and the water outlet (14) communicate inside the cylinder (15),
Since the water flow path (20) is formed, the inlet (13
) The water flowing in from the water outlet (14) not only flows out from the water side connection path (6) to the mixed faucet water supply system (4>), but also flows from the hot water side connection path (5) to the mixed faucet water supply system. (2). On the other hand, the hot water flows through the outer peripheral surface of the inner cylinder (15) to the hot water supply system (
1), so it does not flow into the inner Fj (15). In this way, only water can be spouted without changing the set temperature of the thermostat or the like. In addition, since water can also flow through a part of the hot water flow path, a sufficient amount of water can be ensured.

(c) When stopping the hot water supply or water supply, use the inner cylinder (1
5) to close the hot water branch (5) and the water connection (6) on its outer circumferential surface.

As described above, switching between hot and cold water can be performed simply and easily with one valve. The structure of the hot water switching valve can be simplified and made compact, and a low-cost hot water switching valve for a mixed faucet can be realized. The rotation of the cylinder (15) can be easily operated using, for example, a button provided on the operation panel.

FIG. 6, FIG. 7, and FIG. 8 are perspective views each showing another example of the present invention.

In this example, as shown in FIG. 6, there is a hot water inlet (21) connected to the hot water supply system (1) serving as the hot water side connection path, and a hot water outlet (21) connected to the mixed faucet hot water supply system (2). 22),
Also, the water side! A water inlet (23) connected to the water supply system (3) of the fC continuation path and the branch path and a water outlet (24) connected to the mixed faucet water supply system are each arranged on the top surface of the case (8). A U-turn type hot water side connection path and a water side connection path are formed. Further, as shown in FIG. 7, the outer cylinder (10) has openings ( 25)
has been established.

On the other hand, inside f! j(15), as shown in Figure 8,
A notch (26) connecting the hot water inlet (21) and hot water outlet (22) of the case (8) as a submerged flow passage, and a water inlet (23) and a water outlet (24) as a water flow passage.
A notch (27) is provided to connect the water inlet (23) and water outlet (23) of the case (8) as separate water flow passages.
4) and a notch (28) connecting the hot water outlet (22)
There is also a

For example, FIGS. 9(a), 9(b), and 9(c) illustrate the operating state of the hot water switching valve of the mixing faucet having the above configuration.

(a) For example, when dispensing hot water at a set temperature,
5 (15) by a motor etc., and the case (8)
Hot water inlet (21) and hot water outlet (22) and inner cylinder (1
5), and the water inlet (23) and the water outlet (24) are aligned with the notch (27).

Hot water flowing from the hot water inlet (21) makes a U-turn at the notch (26) and flows out from the hot water outlet (22). Similarly, water also makes a U-turn at the notch (27) and flows from the water inlet (23) to the water outlet (24). In this way, the hot water and the hot water can each flow out at a flow rate corresponding to the set temperature.

<b) On the other hand, when discharging only water,
Rotate j (15) and insert the notch (28) into the case (8).
The water inlet (23), water outlet (24), and hot water outlet (22) are aligned with each other. At this time, since the hot water inlet (21) side is closed by the outer peripheral surface of the inner cylinder (15), hot water does not flow into the notch (28). Water flowing from the water inlet (23) of the case (8) passes through the water outlet (24) and the hot water outlet (22) through the cutout (28) serving as a water flow passage.
), and flows through the hot water flow path and water flow path on the mixing faucet side, and can supply a sufficient amount of water. Furthermore, there is no need to change the hot water temperature setting on a thermo stand or the like.

(c) When stopping the supply of hot water and water, each inlet (21) (23) and outlet (22) (24) are closed on the outer peripheral surface of the inner cylinder (15).

Of course, the invention is not limited to the above examples. Details such as the shape, size, material, and drive method of the case, outer cylinder, and inner cylinder vary!
c! It goes without saying that Mr. A is possible.

(Effects of the Invention) As described above in detail, according to the present invention, switching between hot water and hot water can be performed simply, reliably, and efficiently. It is possible to switch between hot and cold water without changing the hot water temperature setting value of the thermostat, etc.

Moreover, hot water can be switched with one switching valve, and a simplified, low-cost, and compact hot water switching valve is provided.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of the hot water switching valve of a mixing faucet of the present invention, and FIGS. 2, 3, and 4 respectively show the switching valve illustrated in FIG. 1. FIG. 2 is a perspective view illustrating a case, an outer cylinder, and an inner cylinder that constitute the. FIG. 5 is a cross-sectional view illustrating the operating state of the inner cylinder of the hot water switching valve illustrated in FIG. 1 along with the external appearance. FIG. 6, FIG. 7, and FIG. 8 are perspective views showing other examples of the present invention, and FIG. 9 is a sectional view illustrating the operating state thereof. FIG. 10, FIG. 11, FIG. 12, and FIG. 13 are perspective views each illustrating a conventional mixing faucet. FIG. 14 and FIG. 15 are schematic diagrams showing the configuration of a conventional mixing faucet and the flow of hot water when discharging water, respectively. FIG. 16 is a schematic diagram illustrating a hot water switching structure of a conventional mixing faucet. 1... Hot water supply system 2... Mixed faucet hot water supply system 3... Water supply system 4... Mixed faucet water supply system 5... Hot water side connection path 6... Water side connection path 7. ...Hollow part 8...Case 9...Opening part 10...Outer part 11...Spring passage 12...Water flow passage 13...Inlet 14...Water discharge Port 15...Inner tube 16, 18...0 ring 17...Grommet 19...Thread part 20...Water flow passage 21...Hot water inlet 22...Hot water outlet 23...・Water inlet 24...Water outlet 25...Opening part 26, 27, 28...Cut

Claims (2)

[Claims] (1) A case that has a hot water flow path and a connection path to the water flow path consisting of the hot water supply system and a hollow section in the longitudinal direction, and an opening that corresponds to the connection path of the case, and a case opening. It has an outer cylinder that is loaded and sealed in the outer cylinder, a pair of flow paths for each of hot water, and a water flow path that communicates from a water flow path different from these flow paths to the hot water flow path, and is rotatably loaded in the outer cylinder. A hot water switching valve for a mixed faucet characterized by consisting of an inner cylinder. (2) The hot water switching valve for a mixed faucet according to claim (1), wherein the inner cylinder is rotated by a motor.