JPH0429683A - Hot-cold water switching valve for combination faucet - Google Patents

Abstract

PURPOSE:To easily and surely perform switching to hot/cold water and further to make delivery of only the cold water efficiently possible by providing constitution of a case provided with a hollow part having an opening part, outer cylinder, water circulation path, circulating path for connecting an introducing port to a delivery port and an inner cylinder. CONSTITUTION:A hot/cold water switching valve is constituted of a pair of hot/cold water side connection paths 5, 6 parallel to each other and vertically inserted, case 8 having a hollow part orthogonal to these paths 5, 6, outer cylinder 10 having opening parts 9 corresponding to each of both the connection paths 5, 6, water circulation path 11 corresponding to the cold water side connection path 6 and an inner cylinder 15 having a circulation path 14 for connecting an introducing port 12, corresponding to any of the connection paths 5, 6, to a delivery port 13 corresponding over to both the connection paths 5, 6. The inner cylinder 15 is reciprocation-slidably mounted to the inside of the outer cylinder 10 through an O ring 17. In this way, switching to hot/cold water can be simply and easily performed by a single valve. Simplification and compactness of a structure of the hot/cold water switching valve are contrived, and the hot/cold water switching valve of a combined 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 allows you to
The present invention relates to a switching valve for a mixing faucet that can easily and reliably switch between hot and cold water, and can also efficiently discharge only water.

(Prior art) Faucet devices used for hot water supply systems in washrooms, restrooms, bathrooms, kitchens, etc. of residences 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) with a hot water supply valve (A) and a water supply valve (B) as shown in Figure 6, as well as a double handle mixer faucet (A) as shown in Figure 7. As illustrated in Figure 8, there is a single-lever mixer faucet (A) that allows switching and mixing hot and cold water with a single lever, and
2. Description of the Related Art Thermostatic mixing faucets (1) and the like are known that are equipped with temperature control handles that allow the temperature of hot water to be easily adjusted and to set the hot water temperature to a desired temperature.

In addition, an electronic mixing faucet (O) has been proposed that does not have a valve or handle, as shown in Fig. 9, and allows you to switch and mix hot and cold water simply by operating a button on the panel. We make it easy to supply hot water to the bathtub (power).

(Problems to be Solved by the Invention) However, in conventional hot water/water supply systems using the mixing faucets illustrated in FIGS. 6 to 9, for example,
- For boat fishing, a hot water valve (ge) is installed in the vortex flow path (ri) of the hot water supply system (g) as shown in Fig.
A water valve (shi) is installed in the vortex F! Because it has a configuration in which the @ (ri) and water flow path (su) are connected to the mixing valve (su), it is possible to spout only water without changing the set temperature by a thermostat, etc., and to spout water efficiently. was difficult.

For example, the thermos-type mixing faucet (1
) as a mixing valve (S), even if you try to discharge only water, the thermostat will operate and the water valve shown in Figure 10 will operate because the thermostat is set at a predetermined temperature. (shi) is closed or narrowed, and the hot water valve (ge) is opened. For this reason, when discharging water, the mixing valve
The water-side opening is closed or narrowed so that only water cannot be discharged. As described above, when using the thermostatic mixing faucet (1), it has been impossible to discharge only water without changing the set temperature of the thermostat.

In addition, when using the double-handle mixing faucet (a) illustrated in Fig. 6 or the single-handle mixing faucet (a) illustrated in Fig. 7 as a mixing valve (s), in order to discharge water, When the hot water valve shown in Figure 10 is closed, the vortex flow path is completely closed as shown in Figure 11, and the amount of water flowing out to the spout is lower than when hot water is mixed. also decreased,
There is a problem in that the water discharge efficiency is significantly reduced.

On the other hand, in the case of an electronic mixing faucet (E) as illustrated in Figure 9, a motor is attached to the temperature adjustment handle (X) as illustrated in Figure 8, 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) becomes rather complicated, and the cost is high.

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

However, in this case, since three hot water switching valves are used, it is not necessarily cheap, and the hot water switching structure itself becomes complicated, and there are problems such as the need for space for the valve installation. there were.

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 hot water switching valve for a new mixing faucet.

(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 having a hollow part in the longitudinal direction, an outer cylinder having openings corresponding to the connection paths of the case, and filled and sealed in the case openings, a water flow path corresponding to the water side connection path of the case, and It has a flow path that communicates an inlet corresponding to a connection path on either side of the hot water and a corresponding discharge port across the connection path on both sides of the hot water, and is loaded in the outer cylinder so as to be able to slide back and forth. To provide a hot water switching valve for a mixing faucet characterized by comprising an inner 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. In addition to loading and sealing an outer cylinder having a Since an inner cylinder having a flow path that communicates with a corresponding discharge port across a connection path is slidably loaded, the inner cylinder can be slid back and forth using a motor, solenoid, etc. to switch between hot and cold water. can. 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 of protruding rods 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.

The hot and cold water switching valves shown in this example are parallel to each other and connect from the hot water supply system (1) to the mixed faucet hot water supply system (2), and from the water supply system (3) to the mixed faucet water supply system (4). A pair of hot water side connection passages (5) and a water side connection part (6) that pass through, and a second
As shown in the figure, there is a case (8) having a hollow part (7) orthogonal to these connecting passages (5) and (6), and a hot water side connecting passage (5) and a water side # of this case (8). An outer cylinder (10) having openings (9) corresponding to the branch passages (6), a water flow passage (11) corresponding to the water side connection passage (6), and a hot water pipe in the case (8) parallel to this. Connecting path (5) (6) on either side
) Corresponding inlet (12) and connection path (5) on both sides of hot water
(6) and an inner cylinder (15) having a flow path (14) communicating with a corresponding discharge port (13). The outer cylinder (10) also shown in FIG. (1)
and a water supply system (2), a water supply system (3), and a water supply system (4). Of course, the outer cylinder (10) can also be sealed to the case hollow part (7) through an O-ring or the like in addition to the grommet (16).

On the other hand, the inner FJ (15) also shown in Fig. 4 has an 0 ring (
17), it is loaded inside the outer cylinder (10) so that it can slide and reciprocate in the direction of the arrow shown in the figure.

There is no particular restriction on the driving means for the inner cylinder (15), and for example, a motor, a solenoid, etc. can be used. Also,
Threaded portions (18) for piping for connection to the hot water flow path and the water flow path are also provided on the upper and lower outer peripheral 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 slid by a motor, solenoid, etc., and the water flow passage (11), water supply system (3), and mixer faucet water supply system (
4) Match the communication position with At this time, the outer cylinder (10
) is aligned with the inlet (12) of the inner cylinder (15), and part of the outlet (13) is aligned with the opening (9) on the mixing faucet side (
9), and the flow path (14) and the hot water side connection path (5) communicate with each other. 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) and connect the inlet (12) to the water side connection path (6).
Match on the water supply system side. At this time, the hot water side connection path (5) on the hot water supply system side is closed by the outer peripheral surface of the inner cylinder (15>), and the inner cylinder (
The positions of the discharge port (13) provided in 15) and the mixing faucet side of the hot water side connection path (5) and the water side connection path (6) match.

Water flowing in from the inlet (12) of the inner fi<15) flows through the flow path (14) and from the outlet (13) to the water@connecting path (
6), but also flows out to the hot water side of the mixing faucet of the hot water side connection path (5). On the other hand, since the hot water is dammed up on the hot water supply system side of the hot water side connection path (5) by the outer peripheral surface of the inner Fj
(15) In this way, only water can be discharged without changing the set temperature of the thermostat or the like. Moreover, since water can also flow out to a part of the hot water flow path, a sufficient amount of water can be ensured.

(c) When shutting off hot water and water, use the inner cylinder (15
) to close the hot water contact t& path (5) and the water connection path (6) on its outer peripheral surface.

In the above, the inner cylinder (15) may be slid back and forth based on the hot water supply state, or the water stop state may be used as the reference, or any other suitable state may be used as the reference.

In this way, switching between hot and cold water can be performed simply and easily with one valve. The sliding and reciprocating movement of the zero cylinder (15), which is achieved by simplifying and compacting the structure of the hot and cold water switching valve, and by realizing a low-cost hot and cold water switching valve for a mixer faucet, can be achieved by, for example, using a button on the operation panel. It can be easily operated.

Of course, the invention is not limited to the above examples. It goes without saying that various aspects are possible with respect to details such as the shape, size, and material of the case, the outer cylinder, and the inner cylinder, and the method of driving the inner cylinder.

<Effects of the Invention> As explained in detail above, 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 drawings]

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 sectional view illustrating the operating state of the inner cylinder of the hot water switching valve illustrated in FIG. 1 together with the outer cylinder. FIG. 6, FIG. 7, FIG. 8, and FIG. 9 are perspective views each illustrating a conventional mixing faucet. FIG. 10 and FIG. 11 are schematic diagrams showing the configuration of a conventional mixing faucet and the flow of hot water when discharging water, respectively. FIG. 12 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 rm connection path 7. ...Hollow part 8...Case 9...Opening part 10...Outer case 11...Water flow passage 12...Inlet port 13...Outlet port 14... Flow passage 15... Inner cylinder 16... Grommet 17... O-ring 18... Screw, screw part

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. A water flow passage corresponding to the water side connection passage of the case, a separate inlet corresponding to the connection passage on either side of hot water, and a corresponding discharge passage across the connection passage on both sides of hot water and hot water. A hot water switching valve for a mixing faucet, characterized in that it has a flow path communicating with an outlet, and is comprised of an inner cylinder slidably reciprocated in an outer cylinder. (2) The hot water switching valve for a mixed faucet according to claim (1), wherein the inner cylinder is slidably reciprocated by a motor or a solenoid.