JPH11303160A - Piping structure of faucet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the rate of flow in a branch water supply pipe from decreasing and to prevent a garbage crusher from stopping during operation, even if a control handle is moved mistakenly and a faucet becomes able to deliver hot water when the branch water supply pipe is used for supplying water to the garbage crusher. SOLUTION: A flow passage selector valve 10 is provided in a portion of a main water supply pipe 3 and a branch water supply pipe 9 is connected thereto, the terminal of the branch water supply pipe 9 being connected to a portion of a delivery pipe 5. The branch water supply pipe 9 is provided with a constant flow valve 11, a water flow switch 12, and a check valve S. When a control switch 17 is turned on, the flow passage selector valve 1O switches a flow passage to the branch water supply pipe 9 and the water flow switch 12 is turned on to start the operation of a garbage crusher 20. Even if the control handle 7 of a faucet 1 is moved mistakenly during the operation of the garbage crusher 20, no water is supplied to the main water supply pipe 3 and therefore the garbage crusher 20 does not come to a sudden stop.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping structure in which a garbage crusher, a water purifier, an ion water generator, and the like are installed in a place where a faucet is installed, such as a kitchen sink or a washroom.

[0002]

2. Description of the Related Art When a garbage crusher is mounted on a sink, the garbage crusher needs to receive a supply of water during its operation. Conventionally, it has been practiced to provide a safety mechanism so that the crusher can be operated and the garbage crusher does not operate when water is not discharged. This safety mechanism is configured, for example, as shown in FIG. When the faucet 1 is a hot and cold water faucet, the water supply source W
Hot water supplied from the hot water supply source H through the main water supply pipe 3 and the hot water supply pipe 4 is mixed at an appropriate ratio by the mixing valve 2 to obtain desired hot water, and then discharged to the outside through the discharge pipe 5. A branch water supply pipe 70 is provided for branching in the middle of the main water supply pipe 3 and bypass-connected to the discharge pipe 5. An on-off valve 71 is provided in the middle of the branch water supply pipe 70 and a water flow switch 72 is provided. The water flow switch 72 and the garbage crusher 2
The garbage crusher 20 is set so that it can be operated only when the water flow switch 72 is in an ON state by electrically connecting the drive device of the garbage crusher 20.

[0003] With this configuration, the on-off valve 71 is opened,
When the water from the water supply source flows through the branch water supply pipe 70 and flows out of the discharge portion 6 of the faucet 1, the water flow switch 72 is turned off.
Since the state becomes N, the garbage crusher 20 can be operated. However, when the on-off valve 71 is closed and the water does not flow through the branch water supply pipe 70 or when the water supply is cut off, the water flow switch 72 is turned off.
Since it is in the state, the garbage crusher 20 does not operate even when the switch is operated.

[0004]

The safety mechanism is configured on the assumption that the garbage crusher 20 is used when the faucet 1 is not used. For this reason, if the handle of the faucet 1 is operated during the operation of the garbage crusher 20 and the hot water is discharged, the amount of water supplied from the main water supply pipe 3 to the branch water supply pipe 70 is reduced, so that the branch water supply pipe 70 is not used. As a result, the water flow switch 72 shifts to the OFF state, causing a problem that the garbage crusher 20 stops. Also,
During normal use of the faucet 1, even if the on-off valve 71 is opened, the amount of water supplied to the branch water supply pipe 70 is insufficient.
However, there is a drawback that the garbage crusher 20 cannot be operated without shifting to the ON state.

[0005]

SUMMARY OF THE INVENTION The present invention provides a water faucet piping structure which can solve the above-mentioned problems, and is characterized by the fact that a main water supply pipe connected to the water faucet is provided in the middle of the main water supply pipe. A branch is provided with a branch water supply pipe, and a predetermined functional unit is provided in the middle of the branch water supply pipe, and a flow path switching unit that selectively switches a flow path between the main water supply pipe and the branch water supply pipe is provided. When the flow path switching means is provided so that water can flow through one water supply pipe, water flow to the other water supply pipe is prevented.

In the above-mentioned piping structure, the branch water supply pipe may be connected to a discharge portion of a faucet, or may be connected to a discharge portion provided separately from the faucet.

The functional section provided in the branch water supply pipe can be a control device for controlling the driving of the garbage crusher, or a water treatment device such as a water purifier or an ionized water generator.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIG. 1 shows an example in which the present invention is applied to a piping structure in which a garbage crusher 20 is installed together with a faucet 1 in a kitchen sink or the like. Things. The faucet 1 is a hot-water mixing faucet, and mixes water and hot water supplied from the water supply source W and the hot water supply source H through the main water supply pipe 3 and the hot water supply pipe 4 at an appropriate ratio by the mixing valve 2 to obtain desired hot water. After that, discharge is performed from the discharge section 6 to the outside through the discharge pipe 5. In the present embodiment, an electric passage switching valve 1 is provided in the middle of the main water supply pipe 3.
0, and connect the branch water supply pipe 9 to the discharge pipe 5 at the end.
Connected in the middle of The flow path switching valve 10 includes the main water supply pipe 3
When any one of the branch water supply pipe 9 and the branch water supply pipe 9 is made water-permeable, the structure may be any as long as it can block water flow to the other, and the specific structure is not particularly limited.

A check valve S and a strainer 13 are provided upstream of the flow path switching valve 10 in the main water supply pipe 3, and a check valve S is provided downstream thereof. In addition, check valves S are provided in the middle of the hot water supply pipe 4 and slightly upstream of the connection of the branch water supply pipe 9 in the discharge pipe 5. In the branch water supply pipe 9, in order from the upstream side, a constant flow valve 11 (or a flow control valve),
A water flow switch 12 and a check valve S are provided, and the water flow switch 12 is connected to a controller 14. The provision of the constant flow valve 11 in the branch water supply pipe 9 makes it possible to secure an optimum flow rate. Further, by providing the check valve S, it is possible to prevent the water pressure from acting on the distribution water supply pipe 9 from the discharge pipe 5 when using a normal faucet. The controller 14 is for switching between the main water supply pipe 3 and the branch water supply pipe 9 and for controlling the driving of the garbage crusher 20, and includes a flow path switching valve 10, a power supply source 16 (100 V
Commercial power supply), operation switch 17, garbage crusher 20
And a drive circuit 15 for controlling the driving of. In this embodiment, the flow path switching valve 10 is electrically operated, and its operation is electrically controlled by the controller 14 using, for example, a timer. However, the switching operation of the flow path switching valve 10 is manually remote-controlled. It does not prevent adopting a method of operating.

The operation of the garbage crusher 20 using the piping structure constructed as described above will be described with reference to the time chart of FIG. As shown in FIG. 3A, when the operation switch 17 is turned on, first, the flow path switching valve 10 operates to switch the flow path from the main water supply pipe 3 to the branch water supply pipe 9 side. As a result, the water from the water supply source W flows through the branch water supply pipe 9 via the flow path switching valve 10, so that the water flow switch 1
2 is in the ON state, and the garbage crusher 20 can be operated. After a timer time T1 sufficient for water to be discharged from the discharge unit 6 has elapsed based on the ON operation of the operation switch 17, the garbage crusher 2
A drive signal is output to 0 to start the operation of the garbage crusher 20. After the operation is continued up to the preset timer time T2, the garbage crusher 20 is stopped. Further, when the appropriately set timer time T3 has been reached, the flow path switching valve 10 is operated to return the flow path to the main water supply pipe 3 side. Thereby, the flow of water in the branch water supply pipe 9 is stopped, so that the water flow switch 12 is turned off, and the operation of the garbage crusher 20 becomes impossible.

As shown in FIG. 1B, when the garbage crusher 20 is operated, an operation switch 17 is operated to output an OFF signal from the controller 14 to the drive circuit 15 so that the garbage crusher 20 is turned off. 20 may be stopped and the flow path switching valve 10 may be operated to switch the flow path to the main water supply pipe 3 side. Further, if water is cut off for some reason during the operation of the garbage crusher 20, the water flow switch 12 is turned off, and the operation of the garbage crusher 20 is stopped.

In the present embodiment, during the operation of the garbage crusher 20, the flow path switching valve 10 allows only the branch water supply pipe 9 to flow water and blocks water flow to the main water supply pipe 3; Stopper 1
Even if the operation handle 7 is moved to a state where water can be discharged, water is not supplied to the main water supply pipe 3. Therefore,
As in the conventional case, the problem that the flow rate of the branch water supply pipe 9 is reduced, the water flow switch 12 is turned off, and the garbage crusher 20 is suddenly stopped is solved. Also, even when the faucet 1 is in normal use, when the operation switch 17 is turned on, the flow path switching valve 10 forcibly switches the flow path to the branch water supply pipe 9 side. Thereby, the flow rate in the branch water supply pipe 9 is ensured, and the water flow switch 12 can be reliably turned on. Therefore, this embodiment has an advantage that the operation of the garbage crusher 20 can be started even while the faucet is being used.

[Second Embodiment] In the embodiment of FIG.
The end of the branch water supply pipe 9 is connected to the discharge pipe 5 so that water to be supplied to the garbage crusher 20 is discharged from the discharge section 6 of the faucet, but as shown in FIG. It is also possible to connect the end of the branch water supply pipe 9 to a dedicated discharge unit 8 provided nearby and to discharge water supplied to the garbage crusher 20 from the dedicated discharge unit 8.

Depending on the structure of the faucet 1, it may be difficult to connect the branch water supply pipe 9 to the discharge pipe 5 of the faucet 1, and the configuration of FIG. 3 applies the present invention to such a situation. It is advantageous for Also, there is an advantage that whether or not the garbage crusher 20 is in operation can be visually determined based on whether or not water is being discharged from the dedicated discharge section 8 provided separately.

[Third Embodiment] FIG. 4 shows an embodiment in which the present invention is applied to a case where a water purifier 30 is incorporated in a water supply pipe to the faucet 1. In this embodiment,
The water purifier 30 is incorporated in the branch water supply pipe 9 connected to the flow path switching valve 10 provided in the middle of the main water supply pipe 3, and the end of the branch water supply pipe 9 is connected to the middle of the discharge pipe 5 of the faucet 1. Although the passage switching valve 10 is shown as being electrically driven in the drawings, it may be manually operated. A check valve S and a strainer 13 are provided upstream of the flow switching valve 10 in the main water supply pipe 3, and a check valve S is provided downstream. In addition, a constant flow valve 16 (or a flow control valve) and a check valve S are provided at an appropriate position downstream of the water purifier 30 in the branch water supply pipe 9. In hot water supply pipe 4,
A check valve S and an on-off valve 18 are provided. This on-off valve 18
For example, it is connected to the controller 19 together with the flow path switching valve 10, and is configured to interlock with the flow path switching valve 10. That is, according to the operation on the operation switch 17,
The on-off valve 18 is set to open when the flow direction of the flow path switching valve 10 is on the main water supply pipe 3 side, and is closed when it is on the branch water supply pipe 9 side.

When using the water purifier 30, the operation switch 17 operates the flow path switching valve 10 to switch the flow path to the branch water supply pipe 9 side. Thereby, the water from the water supply source passes through the water purifier 30, and is discharged from the discharge part 6 of the faucet via the branch water supply pipe 9 and the discharge pipe 5. At this time, since the hot-water supply pipe 4 is closed by the on-off valve 18 interlocked with the flow path switching valve 10, hot water and water are supplied to the mixing valve 2 even if the operation handle 7 of the faucet 1 is accidentally moved. There is no possibility that mixed hot and cold water from the mixing valve 2, which is non-purified water, will be mixed into the purified water discharged from the water purifier 30. Also, even when the faucet 1 is in use, if the switch is operated,
The flow path switching valve 10 is operated to forcibly switch the water flow path from the main water supply pipe 3 side to the branch water supply pipe 9 side, and the on-off valve 1
8 closes the hot water supply pipe 4, the operation handle 7 of the faucet 1 is closed.
Without returning to the closed position of hot water, it is possible to discharge only purified water without mixing hot and cold mixed water which is non-purified water.

As shown in FIG. 5, the end of the branch water supply pipe 9 is connected to a dedicated discharge section 31 separately provided near the faucet 1, so that water supplied from the water purifier 30 is supplied to the dedicated discharge section. 3
It may be configured to discharge from one.

[0018]

[Embodiment 1] FIG. 6 shows an embodiment in which the present invention is applied to a piping structure in which a kitchen sink is provided with a garbage crusher 20 together with a hot and cold water mixing faucet 1. The illustrated hot and cold water mixing faucet 1 has a discharge section 6 that can be pulled out from the faucet main body 1a, and a main water supply connected to a water supply source W to a mixing valve (not shown) built in the faucet main body 1a. Tube 3,
The hot water supply pipe 4 connected to the hot water supply source H and the discharge pipe 5 leading to the discharge section 6 are connected respectively. The discharge pipe 5 is formed as a flexible hose 5a in the middle, and is configured so that the discharge part 6 drawn out of the faucet main body 1a can be moved to an arbitrary position within a range where the hose 5a can reach.

In the middle of the main water supply pipe 3, a garbage crusher 20 is provided.
A control box C for controlling the operation of the vehicle is incorporated. The main water supply pipe 3 is configured to be connected to the mixing valve of the faucet 1 through the inside of the control box C. In the control box C, a flow path switching valve 10 is provided in the main water supply pipe 3. The branch water supply pipe 9 connected to the flow path switching valve 10 is drawn out of the control box C and is connected to the middle of the discharge pipe 5. In the control box C, the flow path switching valve 1 in the main water supply pipe 3
0, a check valve and a strainer are provided on the upstream side, a constant flow valve, a water flow switch, a check valve, and the like are provided in the branch water supply pipe 9. A controller 14 electrically connected to a drive circuit and the like is provided (see FIG. 1). A power supply 16 and an operation switch 17 provided at a suitable external location are connected to the controller 14 by wiring. The control box C has a plug 2 at the end of the power cord of the garbage crusher 20.
1 is provided with an outlet Q.

In this embodiment, as shown in FIG. 7, a structure in which the operation switch 17 of the garbage crusher 20 is provided on the adapter 40 for attaching the faucet main body 1a to the counter 100 (or the apron part of the sink). Adopted. To attach the faucet body 1a, the bolts 41, 41 inserted through the adapter 40 are screwed into the roughly C-shaped holding member 60 via the packing 50, and in this state, only the holding member 60 is mounted on the counter 100. Opening 1 formed in
10 to the lower surface side. And bolts 41, 41
After fixing the adapter 40 on the surface of the counter 100 by tightening, the water faucet main body 1a is erected on the adapter 40, and the screw 42 is screwed into the adapter 40 through the opening 1b on the base side surface of the water faucet main body 1a. Thereby, the faucet main body 1a is mounted on the counter 100 via the adapter 40.

In order to use the garbage crusher 20 in this embodiment, the operation switch 17 is pressed to operate the flow path switching valve 10 in the control box C so that water from the water supply source W is branched and supplied. Distribute to tube 9. As a result, the water passing through the discharge pipe 5 is discharged from the discharge portion 6 of the faucet 1, the water flow switch is turned on, and the controller 14 starts energizing the garbage crusher 20 through the drive circuit 15, and the garbage is discharged. The operation of the crusher 20 starts. In this state, the supply of water from the main water supply pipe 3 to the faucet 1 is blocked, so that even if the operation handle 7 is moved to a position where water can be discharged, the amount of water flowing to the branch water supply pipe 9 does not decrease. . Therefore, the problem that the water flow switch 12 is turned off and the garbage crusher 20 stops halfway does not occur. Further, even when water is being discharged from the faucet 1, the flow path can be forcibly switched to the branch water supply pipe 9 side by pressing the operation switch 17, so that the garbage crusher 20 Can be used.

[Embodiment 2] In the embodiment shown in FIG. 8, a dedicated discharge section 8 is provided in an adapter 40 for attaching the faucet main body 1a to a counter 100 or the like, and the end of a branch water supply pipe 9 is connected to this. It was done. With this configuration, the water is always discharged from the dedicated discharge unit 8 during the operation of the garbage crusher 20, so that it is possible to visually check whether or not the garbage crusher 20 is operating.

In this embodiment, the adapter 40 for attaching the faucet main body 1a is attached to the base portion 40a integrally provided with the operation switch 17 and the dedicated discharge section 8, and the base of the faucet main body 1a. And a connecting portion 40b to be connected, and a structure in which both are joined via a packing 43 is adopted. As described above, the specific structure of the adapter 40 is not particularly limited, and can be appropriately changed.

[Embodiment 3] FIGS. 9 to 11 show a flow path switching valve 10 provided at a branch point between a main water supply pipe 3 and a branch water supply pipe 9.
FIG. 1 shows an embodiment in which the switching operation can be performed mechanically. In this embodiment, a rotatable operation lever 45 is provided on an adapter 40 for attaching the faucet main body 1a to a counter 100 or the like.
6 and the flow path switching valve 10 were connected by an operation cable 47 having, for example, an inner cable slidably provided inside an outer cable. In the control box C, a constant flow valve, a water flow switch, a check valve, and the like are provided in the branch water supply pipe 9, and a drive circuit and a controller for the garbage crusher 20 are built in.

To operate the garbage crusher 20, the operation lever 45 is rotated in the direction of arrow X from the position shown in FIG. Then, since the operation cable 47 connected to the base 46 of the operation lever 45 is pulled, the valve body 10a of the flow path switching valve 10 connected thereto rotates as shown in FIG. Switch from the pipe 3 side to the branch water supply pipe 9 side. Thereby, the water from the water supply source W is supplied only to the branch water supply pipe 9, and the operation of the garbage crusher 20 is started. Conversely, when the operation lever 45 is rotated from the state shown in FIG. 3B to the direction shown by the arrow Y to return to the state shown in FIG. 10a rotates. As a result, the flow path is switched to the main water supply pipe 3 side, and the water flow switch is turned off.
0 stops.

[Embodiment 4] FIG. 12 shows an embodiment in which a water purifier 30 is incorporated in the middle of a water supply pipe. As shown in the figure, a flow path switching valve 10 is provided in the middle of the main water supply pipe 3, and this is connected to the inflow side of the water purifier 30 by a primary branch water supply pipe 9A. And the outflow side of the water purifier 30
It connects to the discharge part of the faucet 1 by the secondary branch water supply pipe 9B. In addition, the flow path switching valve 10 of the present embodiment is of a built-in battery type,
An operation switch 17 provided in the vicinity of the faucet 1 allows the flow path switching valve 1
0 can be operated. An electromagnetic opening / closing valve 18 is provided in the middle of the hot water supply pipe 4 to open and close the flow path in response to the operation of the operation switch 17 in conjunction with the operation of the flow path switching valve 10.

When using the water purifier 30, the operation switch 17 is turned on. Then, the flow path switching valve 10 is operated to switch the flow path to the primary branch water supply pipe 9A side, and to flow the water from the water supply source to the water purifier 30. The purified water flowing out of the water purifier 30 is discharged from the discharge part 6 of the faucet 1 through the secondary branch water supply pipe 9B. At this time, since the hot water supply pipe 4 is closed by the electromagnetic opening / closing valve 18, even if the operation handle 7 is moved by mistake, hot water is discharged from the hot water mixing valve 2 of the faucet 1 and does not mix with purified water.

[Embodiment 5] FIG. 13 shows an embodiment 4 in which the switching operation of the flow path switching valve 10 can be performed mechanically. In the present embodiment, the dedicated discharge section 31 for the purified water is attached to the adapter 40 for attaching the faucet body 1a.
The outlet of the water purifier 30 is connected to the outlet of the water purifier 30 by a secondary branch water supply pipe 9B, and the dedicated discharge section 31 also serves as an operating lever of the flow path switching valve 10. That is,
The exclusive discharge section 31 is made rotatable, and its base and the flow path switching valve 10 are connected by an operation cable 47. Then, when the exclusive discharge section 31 is rotated to the front purified water discharge position, the valve body of the flow path switching valve 10 is moved through the operation cable 47, and the flow path is switched to the branch water supply pipe 9 side. An opening / closing valve 18 is also provided in the middle of the hot water supply pipe 4 and connected to the base of the exclusive discharge section 31 by an operation cable 48. When the exclusive discharge section 31 is turned to the purified water discharge position, the open / close valve 18 is opened and closed. Desirably, the valve 48 is configured to close the hot water supply pipe 4.

[0029]

According to the present invention, a flow path switching valve is provided at a branch point between a main water supply pipe and a branch water supply pipe so that water flows through only one of them. Is operated, there is no possibility of changing the flow rate of water in the branch water supply pipe. Therefore, for example, in the case where a garbage crusher is provided, when the branch water supply pipe is used for supplying water to the garbage crusher, even if the operation handle is accidentally moved so that hot water can be discharged from the faucet. In addition, since the flow rate of the branch water supply pipe does not decrease, the problem that the garbage crusher stops during operation can be solved.

[Brief description of the drawings]

FIG. 1 relates to a first embodiment of the present invention,
It is the schematic which shows the piping structure at the time of incorporating a garbage crusher.

FIG. 2 relates to a first embodiment of the present invention,
It is a time chart for explaining the operation situation of a garbage crusher.

FIG. 3 relates to a second embodiment of the present invention,
It is the schematic which shows the case where the exclusive discharge part is provided in the piping structure when a garbage crusher is incorporated.

FIG. 4 relates to a third embodiment of the present invention,
It is the schematic which shows the piping structure at the time of incorporating a water purifier.

FIG. 5 relates to a third embodiment of the present invention,
It is the schematic which shows the case where the exclusive discharge part is provided in the piping structure at the time of incorporating a water purifier.

FIG. 6 is a perspective view showing the first embodiment of the present invention.

FIG. 7 is an exploded perspective view showing the adapter for attaching the faucet main body according to the first embodiment of the present invention.

FIG. 8 is an exploded perspective view showing a main part of a second embodiment of the present invention.

FIG. 9 is a perspective view showing a third embodiment of the present invention.

FIG. 10 is an exploded perspective view showing an adapter for attaching a faucet body according to a third embodiment of the present invention.

FIG. 11 relates to Embodiment 3 of the present invention, and is a plan sectional view for explaining the operation of an operation lever and a flow path switching valve.

FIG. 12 is a perspective view showing a fourth embodiment of the present invention.

FIG. 13 is a perspective view showing a fifth embodiment of the present invention.

FIG. 14 is a schematic view showing an example of a conventional piping structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Water faucet (water tap water mixing faucet) 1a ... Water faucet main body 2 ... Mixing valve 3 ... Main water supply pipe 4 ... Hot water supply pipe 5 ... Discharge pipe 6 ... Discharge part 7 ... Operation handle 8 ... Dedicated discharge part 9 ... Branch water supply pipe DESCRIPTION OF SYMBOLS 10 ... Flow path switching valve 11 ... Constant flow valve 12 ... Water flow switch 13 ... Strainer 14 ... Controller
15 Drive circuit 16 Electric supply source 17 Operation switch 18 Open / close valve 19 Controller 20 Garbage crusher 30 Water purifier 40 Adapter W Water supply source H Hot water supply source S Check valve

Claims (5)

[Claims] 1. A branch water supply pipe is provided by branching in the middle of a main water supply pipe connected to a faucet, and a predetermined functional unit is provided in the middle of the branch water supply pipe. Flow path switching means for selectively switching the flow path with the pipe is provided, and when the flow path switching means allows water to flow to one water supply pipe, water flow to the other water supply pipe is provided. A faucet piping structure that is set to block. 2. The faucet piping structure according to claim 1, wherein the branch water supply pipe communicates with a faucet discharge part. 3. The water faucet piping structure according to claim 1, wherein the branch water supply pipe communicates with a discharge part provided separately from the water faucet. 4. The faucet piping structure according to claim 1, wherein the function part in the middle of the branch water supply pipe is a control device for controlling the driving of the garbage crusher. 5. The water faucet piping structure according to claim 1, wherein the functional part in the middle of the branch water supply pipe is a water treatment device such as a water purifier or an ion water generator.