JP2004278761A - Composite single faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To implement increase in durability of a water purifier as wall as simplification of piping constitution and channel constitution in a faucet, while preventing secondary pollution caused by bacteria, in a faucet allowing switch between raw water and clean water by means of a raw water/clean water selector valve. <P>SOLUTION: A composite single faucet 32 can switch the raw water from/to the clean water purified by passing through the water purifier, by operation of the single selector valve 45. The composite single faucet 32 is connected with three conduit tubes of a raw water conduit tube 33, a conduit tube 38 of water to be cleaned for supplying the raw water to the water purifier 36, and a clean water conduit tube 34 for supplying the clean water from the water purifier to the composite single faucet 32. A part of a raw water passage in the composite single faucet 32 is also used as a clean water passage in the composite single faucet 32, and the selector valve switches among discharge of raw water supplied from the raw water conduit tube 33 as it is, supply of the raw water to the conduit tube 38, and stop of the water. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a composite single faucet capable of discharging raw water and purified water from an integral faucet.
[0002]
[Prior art]
Conventionally, a single faucet for discharging tap water in the state of water or hot water has been known as raw water, and a water purifier is attached to a water circuit of the single faucet so that water can be purified in addition to raw water. In some cases, water supply was possible.
When supplying purified water, a water faucet dedicated to water purification may be provided separately from the single faucet, or one single faucet may be configured to discharge raw water and water. Was.
Thus, as an example of the technology of the faucet configured to discharge the raw water and the purified water from the same single faucet, there is a technology disclosed in Patent Document 1, for example.
[0003]
In the faucet disclosed in Patent Literature 1, a switching valve for switching between spouting of raw water and purified water is performed by the same switching valve, and a faucet having a configuration in which each is switched by another switching valve. In comparison, the operation is easy and no erroneous operation is performed.
In addition, by making the raw water containing chlorine pass through the water passage from the water purification outlet of the water purifier to the water discharge outlet, secondary contamination due to propagation of various bacteria in this water passage is prevented. The configuration was to prevent it. Purified water is used infrequently, and purified water purified by a water purifier is in a state in which residual chlorine contained in tap water has been removed. Although it is not expected to have the effect of preventing the propagation of various bacteria, this measure has been taken.
[0004]
[Patent Document 1]
JP 2000-110955 A [0005]
[Problems to be solved by the invention]
Patent Literature 1 describes an example of two faucets having different flow path configurations and piping configurations in the faucet.
Here, in one example, the raw water and purified water are always supplied to the faucet in a state where the main plug of the water supply pipe (water pipe) is loosened in order to keep the raw water and the purified water to be switched at the faucet constantly. Pressure is applied. Here, in a state where the main tap is loosened, pressure is always applied to the water purifier in a state in which the main tap is loosened so as to wait for the supply of the purified water to the faucet, which impairs the durability of the water purifier. Was.
Further, in the other example, in order to improve the state in which pressure is constantly applied to the water purifier, after the purified water is switched at the faucet, the water purifier is supplied with raw water for purification. However, the configuration of the piping and the configuration of the water passage in the faucet are complicated.
Therefore, the present invention provides a faucet that can switch between raw water and purified water by a dual-purpose switching valve, while preventing secondary contamination by various bacteria and improving the conflicting two problems, that is, the durability of the water purifier. The present invention realizes both improvement and simplification of the piping configuration and the water channel configuration in the faucet.
[0006]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
That is, in claim 1, in a composite single faucet that switches between raw water and purified water obtained by passing raw water through a water purifier by operating a single switching means, and discharging from the same discharge port,
The composite single faucet consists of three conduits: a raw water conduit, a purification water conduit that supplies raw water to the water purifier, and a water purification conduit that supplies purified water from the water purifier to the composite single faucet. Connected,
The passage of the purified water in the composite single faucet and a part of the passage of the raw water in the composite single faucet are the same.
[0007]
In claim 2, the switching means is configured to be able to select whether to directly discharge raw water supplied from the raw water conduit, supply the raw water to the purification water conduit, or stop water supply. is there.
[0008]
In claim 3, a check valve is provided in at least the water purification pipe for water purification among the three water conduits.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the composite single faucet of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a composite single faucet 32 according to an embodiment is mounted on a counter top plate of a kitchen or the like, and rotates a switching lever 32b provided on a faucet main body 32a. Thus, one of the raw water and the purified water is selectively discharged from the water discharge port 32d through the water discharge pipe 32c.
A raw water supply pipe 33 for supplying tap water as raw water to the composite single faucet 32 from a lower end of the composite single faucet 32, and a purification water supply pipe 38 whose lower end is connected to an inlet 36 a of a water purifier 36. A water purification pipe 34 whose lower end is connected to an outlet 36b of the water purifier 36 is fitted therein.
[0010]
The lower end of the raw water conduit 33 is connected to a water supply pipe (water pipe) through a check valve 56 and a water stopcock 55, and raw water (tap water) from the water supply pipe is supplied to the raw water conduit. The water is supplied to the composite single faucet 32 through the water pipe 33.
In the case where the raw water (tap water) is discharged from the water discharge port 32d, the raw water supplied into the composite single faucet 32 is directly discharged from the discharge port 32d via the composite single faucet 32.
When discharging purified water from the water discharge port 32d, first, the raw water supplied into the composite single faucet 32 is supplied to the water purifier 36 through a purification water supply pipe 38 which is a route to the water purifier 36. Then, the raw water sent to the water purifier 36 through the purification water supply pipe 38 is sent to the composite single faucet 32 through the water purification pipe 34 as purified water after being purified by the water purifier 36, and is discharged from the discharge port 32d. You.
[0011]
A check valve is provided in a pipe for supplying raw water or purified water to the composite single faucet 32 side. A check valve 56 is provided in the raw water conduit 33, and a check valve 54 is provided in the water purification conduit 34. And raw water or purified water is prevented from flowing backward. The check water supply pipe 38 may be provided with a check valve.
[0012]
In this way, raw water and purified water are supplied to the composite single faucet 32, and one of the raw water and purified water is selected from the water discharge port 32d by rotating the switching operation lever 32b. It is constituted so that it may be ejected.
In addition, tap water as raw water supplied to the composite single faucet 32 through the raw water conduit 33 is discharged from the water outlet 32d as water when supplied directly from a water pipe or the like, and is supplied by a water heater or the like in the middle. When heated and supplied, it is discharged from the water outlet 32d as hot water.
Further, since the water purifier generally has a configuration that does not correspond to hot water (warmed raw water), it is not performed that the hot water passes through the water purifier 6 for purification by switching in the composite single faucet 32. . Of course, when a water purifier having a configuration corresponding to hot water is used, purification may be performed by passing hot water generated by heating raw water through the water purifier.
[0013]
Next, a single switching means provided in the composite single faucet 32 will be described. The switching means switches between water discharge of raw water, water discharge of purified water, and water stoppage.
As shown in FIGS. 2 and 3, in the composite single faucet 32, a switching valve 45 is provided inside a valve bearing 32 e, and switching of raw water, purified water, and still water is performed by operating the switching valve 45 externally. Is possible.
The raw water conduit 33 fitted into the composite single faucet 32 from the lower end is connected to a water supply flow passage 41 in the faucet main body 32a. In addition, the water purification conduit 34 is connected to a water discharge passage 44, and the purification water supply tube 38 is connected to a purification water passage 43.
Here, the water supply channel 41, the discharge channel 44, and the purification water channel 43 are spaces formed between the inner wall of the faucet main body 32a and the outer wall of the valve bearing 32e. Further, at an appropriate position of the valve bearing 32e, a protruding portion which is in contact with the inner wall of the faucet main body 32a is formed, and the water supply flow path 41, the discharge flow path 44, and the purification water flow path 43 are shut off from each other. Configuration.
[0014]
The switching valve 45 includes a switching valve shaft 45a having one end integrally connected to the switching operation lever 32b, a first valve 45b attached to the other end of the switching valve shaft 45a by a screw 52, and a second valve 45b. It is composed of a valve 45c and a valve case 45d in which a switching valve shaft 45a is rotatably screwed. The switching valve 45 and the switching operation lever 2b constitute a switching device that switches between water or hot water discharge, purified water discharge, and water stoppage.
[0015]
The first valve 45b and the second valve 45c are slidably fitted to the screw 52, and a spring 51 is interposed between the first valve 45b and the second valve 45c. One valve 45b is urged in the direction of the water discharge passage 44, and the second valve 45c is urged in the direction of the purification water passage 43.
The switching valve shaft 45a of the switching valve 45 is screwed into a screw portion of the valve case 45d, and is configured to move in the axial direction with the turning operation of the switching valve shaft 45a.
Further, the space around the outer periphery of the first and second valves 45b and 45c of the switching valve 45, which is surrounded by the inner wall of the valve bearing 32e, is formed as a valve chamber 47. Here, the water supply flow path 41 and the valve chamber 47 can communicate with each other through a communication hole 32f formed in the valve bearing 32e. The communication state is established when the raw water is discharged as shown in FIG. 5 (described later).
Further, a cutout portion 45e is formed in the switching valve shaft 45a, and the cutout portion 45e and the discharge passage 44 are connected to a communication hole 45f formed in the valve case 45d and a communication hole 45f formed in the valve bearing 32e. Communication is possible via. The communication between the notch 45e and the valve chamber 47 can be shut off by the first valve 45b, and the communication state is established at the time of discharging purified water shown in FIG. 6 (described later). Further, the water discharge passage 44 communicates with the water discharge pipe 32c.
On the other hand, the valve chamber 47 and the purifying water channel 43 can communicate with each other through a communication hole 32h formed in the valve bearing 32e. The communication between the valve chamber 47 and the purification water flow path 43 can be shut off by the second valve 45c, and the communication state is established when the purified water is discharged as shown in FIG. 6 (described later).
[0016]
At the turning position (water stop position N) of the switching operation lever 32b shown in FIGS. 2 and 4, the composite single faucet 32 is in the water stop state.
That is, since the communication between the valve chamber 47 and the notch 45e is separated by the first valve 45b, the raw water supplied from the raw water supply pipe 33 to the water supply flow path 41 and penetrated into the valve chamber 47 has a water discharge flow path. It does not flow into 44.
Further, since the communication between the valve chamber 47 and the purification water flow path 43 is closed by the second valve 45c, it does not flow into the purification water flow path 43 and the purification water supply pipe 38.
That is, the raw water supplied from the raw water supply pipe 33 to the water supply flow path 41 is retained in the valve chamber 47 and is not sent out to the water discharge port 32d.
[0017]
The discharge of raw water will be described with reference to FIG.
As shown in FIG. 4, when the switching operation lever 32b is turned downward from the water stop position N where the switching operation lever 32b is in the horizontal state to the raw water position P, the raw water is discharged from the water discharge port 32d.
As shown in FIG. 5, in the switching state of the switching valve 45 at the raw water position P, the switching valve shaft 45a moves in the direction of the purification water flow path 43 with the turning operation of the switching operation lever 32b.
Then, by the movement of the switching valve shaft 45a, the first valve 45b is moved in the direction of the purification water flow path 43, and the valve chamber 47 communicates with the cutout portion 45e of the switching valve shaft 45a to enter the valve chamber 47. Raw water flows into the discharge channel 44. The raw water is discharged from the water discharge port 32d via the discharge pipe 32c communicating with the discharge flow path 44.
The communication between the valve element 47 and the purification water passage 43 is kept shut off by the second valve 45c moved toward the purification water passage 43 by this switching operation.
[0018]
The discharge of purified water will be described with reference to FIG.
As shown in FIG. 4, when the switching operation lever 32b is turned upward from the water stop position N where the switching operation lever 32b is in the horizontal state to the water purification position C, purified water is discharged from the water discharge port 32d.
As shown in FIG. 6, in the switching state of the switching valve 45 at the water purification position C, the switching valve shaft 45a moves in the direction of the discharge flow path 44 as the switching operation lever 32b rotates.
Then, by the movement of the switching valve shaft 45a, the second valve 45c is moved in the direction of the discharge flow path 44, and the valve chamber 47 and the purification water flow path 43 communicate with each other. It flows into the water channel 43. The raw water that has flowed into the purification water flow path 43 is sent out to the water purifier 36 through the purification water supply pipe 38, and is purified by the water purifier 36. The water is discharged and discharged from the water discharge port 32d.
The communication between the valve chamber 47 and the discharge passage 44 is kept shut off by the first valve 45b moved toward the water discharge passage 44 by this switching operation.
[0019]
As described above, the compound single faucet 32 can switch between the spouting of the raw water, the spouting of the purified water, and the stopping of the water simply by rotating the single switching device constituted by the switching valve 45 and the switching operation lever 32b. You can do it. Thereby, the switching operation between the water discharge and the water stoppage and the switching operation between the raw water discharge and the purified water discharge can be performed at the same time, and these switching operations can be simplified and erroneous operations can be prevented.
[0020]
Here, the passage routes of the raw water and the purified water are confirmed again with reference to FIG.
First, a case where raw water is discharged from the discharge port 32d will be described. Raw water (tap water) supplied from a water supply pipe (water pipe) is first supplied to a raw water conduit 33, a water supply flow path 41, and a valve chamber 47. When the first valve 45b is opened by the switching operation of the switching valve 45, the raw water is supplied to the valve chamber 47 and the discharge path 44, and is discharged from the discharge port 32d.
Next, a case where the purified water is discharged from the discharge port 32d will be described. Raw water (tap water) supplied from a water supply pipe (water pipe) is first supplied to a raw water conduit 33, a water supply flow path 41, and a valve chamber 47. The route up to this point and the case of discharging purified water are the same as the case of discharging raw water. Then, when the second valve 45c is opened by the switching operation of the switching valve 45, the raw water is supplied to the water purifier 36 via the valve chamber 47, the purification water flow path 43, and the purification water supply pipe 38. In the water purifier 36, the raw water is purified to become purified water. The purified water is supplied to the discharge flow path 44 through the water purification conduit 34, and is discharged from the discharge port 32d.
[0021]
In the above, the passage of the purified water is a path that reaches the discharge port 32c via the water purification pipe 34 and the discharge path 44. Here, the path from the discharge flow path 44 to the discharge port 32c matches the path at the time of discharging the raw water. That is, in the composite single faucet 32, the passage of the purified water is configured to overlap the passage of the raw water.
For this reason, the purified water remaining in the passage of the purified water can be washed with the tap water containing chlorine except for the connection portion between the composite single faucet 32 and each of the pipes and the like. The germs can be prevented from growing inside the water channel.
[0022]
Here, the composite single faucet 32 switches between raw water and purified water obtained by passing raw water through a water purifier by operating a single switching means (switching valve 45), and discharges the same from the same discharge port. is there. Then, there are three conduits including a raw water conduit 33, a purification water conduit 38 for supplying raw water to the water purifier 36, and a water purification conduit 34 for supplying purified water from the water purifier 36 to the composite single faucet 32. It is connected to a water pipe.
In addition, the passage of the purified water in the composite single faucet 32 and a part of the passage of the raw water in the composite single faucet 32 are the same.
[0023]
For this reason, while simplifying the piping configuration connected to the composite single faucet 32 and the water channel configuration in the composite single faucet 32, the purified water remaining in the passage of the purified water is combined with the composite single faucet 32 and each of the pipes. It can be washed with tap water containing chlorine except for the connection part of the above, and it can be prevented that various bacteria grow in all the water passages through which the purified water passes.
[0024]
The switching means (switching valve 45) is configured to be able to select whether to directly discharge raw water supplied from the raw water conduit, to supply the purified water conduit 38, or to stop water supply. .
[0025]
Therefore, only when switching to the purifying water conduit 38, the water pressure is applied to the water purifier 36, and the durability of the water purifier 36 can be improved.
[0026]
In addition, the passage of water inside the composite single faucet 32 having the above configuration is as follows.
In the case of discharging raw water, the passage path of water in the composite single faucet 32 is a path from the water supply channel 41 to the discharge port 32c via the valve chamber 47 and the water discharge channel 44.
In the case of discharging purified water, the passage of water in the composite single faucet 32 is, first, a first path from the water supply passage 41 to the purification water passage 43 via the valve chamber 47. There is a second path through the water discharge flow path 44 to the discharge port 32c. Here, the second route is a passage of purified water, but the first route is a passage of purified water before being purified, that is, a passage of raw water.
[0027]
In other words, by performing both the switching operation between the raw water discharge and the purified water discharge, almost all of the passage paths of the water formed in the composite single faucet 32 except for the connection portion between the composite single faucet 32 and each pipe. Is configured so that raw water always passes.
When switching to discharge the raw water, the raw water reaches the discharge port 32c from the water supply flow path 41 via the valve chamber 47 and the water discharge flow path 44. Further, when switching to discharge purified water, the raw water flows from the water supply passage 41 to the purification water passage 43 via the valve chamber 47. Therefore, by performing both the operation of switching the discharge of the raw water and the operation of switching the discharge of the purified water, the raw water passes through most of the passages of the water formed in the composite single faucet 32.
[0028]
For this reason, the passage of water in the composite single faucet 32 can be washed with tap water containing chlorine, and it is possible to prevent germs from growing inside the water passage.
[0029]
In addition, among the three water conduits, i.e., the raw water conduit 33, the purification water conduit 38, and the water purification conduit 34, at least the water purification conduit 38 is provided with a check valve 54. The backflow of the raw water to the water purifier 36 can be prevented. Therefore, the durability of the water purifier 36 is improved.
[0030]
【The invention's effect】
As set forth in claim 1, in a composite single faucet that switches between raw water and purified water obtained by passing raw water through a water purifier by operating a single switching unit, and discharging from the same discharge port,
The composite single faucet consists of three conduits: a raw water conduit, a purification water conduit that supplies raw water to the water purifier, and a water purification conduit that supplies purified water from the water purifier to the composite single faucet. Connected,
Since the passage of purified water in the composite faucet and a part of the passage of raw water in the composite faucet were the same,
While simplifying the piping configuration to connect to the composite water faucet and the water channel configuration inside the composite water faucet, the purified water remaining in the passage of purified water can be washed with tap water containing chlorine, allowing the purified water to pass. Bacteria can be prevented from growing in all the waterways.
[0031]
As described in claim 2, the switching means is configured to be able to select whether to directly discharge the raw water supplied from the raw water conduit, supply the raw water to the purification water conduit, or stop water supply. ,
Water pressure is applied to the water purifier only when the water purifier is switched to the purification water conduit, and the durability of the water purifier can be improved.
[0032]
As described in claim 3, since at least the water purification pipe for water purification among the three water transmission pipes is provided with a check valve,
The backflow of raw water to the water purifier can be prevented. Therefore, it leads to improvement of the durability of the water purifier.
[Brief description of the drawings]
FIG. 1 is a front view showing a composite single faucet 32 and a water pipe connected thereto.
FIG. 2 is a front sectional view showing the internal configuration of the composite single faucet 32 when water is stopped.
FIG. 3 is a block diagram showing a water channel configuration of a composite single faucet 32 and a water conduit connected thereto.
FIG. 4 is a side view of the composite single faucet 32 showing the switching operation lever 32b.
FIG. 5 is a front sectional view showing an internal configuration of the composite single faucet 32 at the time of discharging raw water.
FIG. 6 is a front sectional view showing an internal configuration of the composite single faucet 32 at the time of discharging purified water.
[Explanation of symbols]
32 Complex single faucet 33 Raw water conduit 34 Purified water conduit 38 Purified water conduit 45 Switching valve 54 Check valve

Claims (3)

Raw water and purified water obtained by passing the raw water through a water purifier are switched by operating a single switching means, and in a composite single faucet discharged from the same discharge port,
The composite single faucet consists of three conduits: a raw water conduit, a purification water conduit that supplies raw water to the water purifier, and a water purification conduit that supplies purified water from the water purifier to the composite single faucet. Connected,
The passage of purified water in the composite faucet and a part of the passage of raw water in the composite faucet are the same route.
A composite single faucet, characterized in that: The switching means is configured to be able to select whether to discharge the raw water supplied from the raw water conduit, to supply the raw water to the purification water conduit, or to stop water.
The composite single faucet according to claim 1, wherein: Of the three water pipes, at least a water purification pipe, a check valve is provided,
The composite single faucet according to claim 1 or 2, wherein:

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