JPH0932060A - Water delivery pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to reliably recognize whether delivery water is clean water or service water in a delivery pipe which is formed as a double tube structure and in which a clean water passage is formed inside an inner tube and a service water passage is formed between the inner tube and an outer tube and a clean water delivery port and a city water delivery port are arranged in the same place of a tip part. SOLUTION: Inside of a service water delivery port 22, a clean water delivery port 102 is arranged in a condition capable of going in and out. When clean water is not delivered, the clean water delivery port 102 is put in a condition of being pulled inside the service water delivery port 22 as a whole, on the one hand, when the clean water is delivered, the clean water delivery port 102 is put in a condition of projecting from the service water delivery port 22 on the basis of its delivery pressure, and in its condition, the clean water is delivered from the clean water delivery port 102.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water discharge pipe, and more specifically, it has a tap water passage inside a water discharge pipe main body and a second liquid passage independent of the tap water passage. The present invention relates to a device capable of discharging water and a second liquid from the tip of a water discharge pipe.

[0002]

2. Description of the Related Art Conventionally, a water purifier is retrofitted to a discharge port at the tip of a water discharge pipe, and water discharged from the water discharge pipe is passed through the water purifier to be purified before use. on the other hand,
The water purifier is placed away from the water discharge pipe and at a hidden position, and the water from the faucet body is guided to the water purifier through a conduit, purified here, and then returned to the faucet body again, and the faucet is discharged again. A so-called built-in type water purifier that discharges water from a discharge port at its tip through a water pipe is also widely used.

In this case, when the water purified by the water purifier is made to directly flow into the water discharge pipe, the water is circulated inside the water discharge pipe, and then discharged from the discharge port at the tip end,
The purified water purified by the water purifier mixes with the tap water remaining inside the water discharge pipe, which causes a problem of impairing the purity of the purified water.

Therefore, it has been considered to provide an inner pipe for passing only purified water independently inside the water discharge pipe (Actual No. 7-12664). FIG. 12 shows an example thereof. In the figure, reference numeral 300 denotes a water discharge pipe having a double pipe structure, and an inner pipe 304 is inserted and arranged inside the water discharge pipe main pipe 302. A tap water passage 306 is formed outside the inner pipe 304, and a purified water passage 308 independent of the tap water passage 306 is formed inside.

The tip of the water discharge pipe main pipe 302 has an opening shape, and the rear end of the end member 312 having the tubular portion 310 is fitted into the opening. This end member 31
The distal end portion of the inner pipe 304 is fitted into the second tubular portion 310 so as to penetrate the inner pipe 304 in the axial direction.

A water discharge pipe cap 314 is fitted on the outer surface of the end member 312. Discharge pipe cap 314
Has a bag-shaped tip and has a clean water discharge chamber 3 inside.
16, and a discharge port 318 of purified water is formed downward in a state of communicating with the discharge chamber 316.
In addition, the water discharge pipe cap 314 has a base end that is the water discharge pipe main pipe 30.
The end member 312 and the discharge pipe cap 314 are fixed to each other with a screw 315.

A tap water outlet 320 is formed in the lower portion of the end member 312, and tap water sent through the passage 306 is directed downward through the outlet 320 to the discharge pipe cap 314. The liquid is discharged from the discharge port 322.

[0008]

By the way, this water discharge pipe 3
In case of 00, tap water outlet 322 and purified water outlet 31
8 is provided separately, the discharge from the discharge port 322 is tap water, and the discharge port 318
The advantage is that the user can immediately recognize that the water discharged from the water is purified water, but on the other hand, there is a problem that the appearance of the tip of the water discharge pipe becomes complicated, and the water discharge pipe cap 31
4 has a structure in which the pressure of purified water and the pressure of tap water act directly in the axial direction. Therefore, when the adhesive fixing force of the water discharge pipe cap 314 is weakened, the water discharge pipe cap 314 is There is a risk that it will come off due to the pressure of purified water or tap water. For example, when hot water is being discharged, if the water discharge pipe cap 314 comes off, an undesirable situation will result.

On the other hand, when tap water and purified water are discharged from the same portion of the tip of the water discharge pipe, the appearance of the tip of the water discharge pipe can be made clean and aesthetically pleasing. In addition, it is relatively easy to make the structure of the tip of the discharge pipe a structure in which the pressure of purified water or tap water does not directly act on the discharge pipe cap in the axial direction. Since the and are discharged, there arises a problem that the user cannot recognize whether the discharged water is purified water or tap water.

[0010]

The invention of the present application has been made to solve such a problem. Thus, in the water discharge pipe of the invention of the present application, a tap water passage and a second liquid passage such as purified water independent of the tap water passage are formed inside the water discharge pipe main body portion, and the tap water is provided at the tip end portion. A water discharge pipe having a discharge port and a discharge port for a second liquid, wherein the second liquid discharge port is between a protruding position protruding outside and a retracted position retracted entirely inside. It is characterized in that it can be moved in and out (Claim 1).

According to another aspect of the present invention, there is provided a water discharge pipe according to claim 1, wherein a pressure receiving portion for receiving the pressure of the second liquid in the projecting direction is provided at the second liquid discharge port, and the second liquid is provided. The discharge port is biased in the drawing direction by a spring member, and the second liquid discharge port is caused to move to the projecting position by the discharge pressure of the second liquid (claim 2). .

According to still another aspect of the present invention, there is provided a water discharge pipe.
Or 2, the tap water discharge port and the second liquid discharge port are provided coaxially, and at the lower end opening of the tap water discharge port, a rectifying mesh having a fitting hole portion in the center is disposed, The retracted position of the second liquid ejection port is set to a position where the lower end portion of the second liquid ejection port is fitted into the fitting hole portion at the retracted position (claim 3). .

According to still another aspect of the present invention, there is provided a water discharge pipe.
In, in the center of the rectifying mesh, a mesh-shaped tubular portion is provided upright, the inside of the tubular portion is the fitting hole portion, and the lower end of the second liquid discharge port in the retracted state. The retracted position is determined so that the portion fits into the upper end portion of the tubular portion (claim 4).

According to still another aspect of the present invention, there is provided a water discharge pipe.
Or 4, a tubular mesh portion is formed at a lower end portion of the second liquid discharge port, and the mesh portion is adapted to be fitted into the fitting hole portion at the retracted position. (Claim 5).

According to still another aspect of the present invention, there is provided a water discharge pipe according to claim 1, 2, 3, 4 or 5, wherein the water discharge pipe main body has a double pipe structure of an outer pipe and an inner pipe. The second liquid passage is formed inside of the inner pipe and a tap water passage is formed between the inner pipe and the outer pipe, and the second liquid outlet and the tap water outlet are directed downward to the inner pipe and the outer pipe, respectively. Is coaxially formed, the tap water outlet is connected to the tap water discharge port, a guide cylinder is connected to the second liquid outlet, and a movable cylinder is slidable vertically in the guide cylinder. The second liquid discharge port is formed by being fitted with the movable cylinder (claim 6).

According to still another aspect of the present invention, there is provided a water discharge pipe.
In the above, the guide cylinder forms a passage of tap water on the outer peripheral surface side, and the rectifying piece is formed in the vertical direction along the outer peripheral surface (claim 7).

[0017]

As described above, according to the first aspect of the present invention, the second liquid discharge port for purified water or the like can be put in and out between the projecting position where the second liquid discharging port is projected outside and the drawing position where it is drawn inside. Thus, according to the present invention, the second liquid such as purified water can be discharged from the second liquid discharge port in the state where the second liquid discharge port is projected to the outside, and the second liquid is drawn in when the second liquid is not discharged. It can be in a state. As a result, the user can visually recognize that the second liquid is surely discharged from the tip of the water discharge pipe when the second liquid is discharged, and the second liquid can be used safely. be able to.

According to a second aspect of the present invention, the second liquid discharge port is provided with a pressure receiving portion for receiving the pressure of the second liquid, and the second liquid discharge port is biased in the retracting direction by the spring member. According to this, when the second liquid is discharged, there is an advantage that the second liquid discharge port can be automatically moved to the protruding position by the pressure of the second liquid.

According to a third aspect of the present invention, the tap water outlet and the second liquid outlet are coaxial with each other, a rectifying mesh is provided at the lower end opening of the tap water outlet, and a fitting hole is provided at the center thereof. The lower end of the second liquid discharge port is fitted into the fitting hole when the second liquid discharge port is retracted. The second liquid discharge port can be taken in and out through the fitting hole,
When tap water is discharged after the second liquid discharge port is in the retracted state, it is possible to prevent the tap water in the discharge pipe from dropping down when the tap water discharge is stopped. That is, it is possible to achieve good drainage when tap water is stopped.

According to a fourth aspect of the present invention, a mesh-like tubular portion is provided upright in the central portion of the rectifying mesh, and the second portion is in the retracted position with respect to the fitting hole portion inside the tubular portion. According to the present invention, tap water can flow into the central portion of the rectifying mesh through the mesh-shaped tubular portion when tap water is discharged. Therefore, the discharge flow of tap water does not have to be a donut-shaped flow, but can be made into a single united flux, and like the third aspect, it is possible to prevent tap water from dropping. .

According to the invention of claim 5, a tubular mesh portion is formed at the lower end portion of the second liquid discharge port, and the tubular mesh portion is fitted into the fitting hole portion at the retracted position. Also in the present invention, since tap water can flow into the central portion of the rectifying mesh through the tubular mesh portion of the second liquid discharge port, the discharge flow of tap water becomes a donut flow. It is possible to avoid the above and form a single bundle of fluxes, and further, like the third or fourth aspect, it is possible to prevent tap water from dropping.

According to a sixth aspect of the present invention, the water discharge pipe main body has a double pipe structure, and a tap water outlet and a second liquid outlet are coaxially formed in each of the outer pipe and the inner pipe, and the second pipe thereof is provided. A guide cylinder is connected to the liquid outlet, and a movable cylinder is vertically slidably fitted inside the guide cylinder so that the movable cylinder constitutes the second liquid discharge port. According to this, the tap water passage and the second liquid passage can be easily formed in the water discharge pipe main body, and the second liquid discharge port can be easily put in and out.

According to a seventh aspect of the present invention, the guide tube forms a passage for tap water on the outer peripheral surface side, and a straightening piece is formed vertically along the outer peripheral surface. According to the above, the movable cylinder can be vertically guided by the guide cylinder, tap water passages can be simultaneously formed on the outer peripheral surface side, and the flow of tap water can be adjusted by the straightening piece before being discharged from the tap water discharge port. be able to.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 2, reference numeral 10 denotes a single lever type hot and cold water mixing faucet attached to the counter 12, which has a faucet body 14, and water and hot water are supplied to the faucet body 14 from a water supply pipe 16 and a hot water supply pipe 18. It is being supplied. The supplied water and hot water are mixed here,
It flows inside the water discharge pipe 20, and is discharged from a discharge port (tap water discharge port) 22 at the tip thereof. Reference numeral 24 is a heat insulating cap made of resin as a water discharge pipe cap.

As shown in FIG. 3, the faucet body 14 is made of metal and the inside thereof is divided into a plurality of partitions.
A pair of inflow passages 26 for supplying water and hot water are formed vertically inside the faucet body 14 by the partition wall.

Water and hot water supplied to the faucet body 14 through the water supply pipe 16 and the hot water supply pipe 18 flow upward in the inflow passage 26, and based on the operation of the single lever 28, After water and hot water are mixed at a predetermined ratio by a valve portion (not shown) provided in the upper portion, the water reaches the outflow passage 30 side and further flows out from the outlet 32 into the water discharge pipe 20 and inside the water discharge pipe 20. Is discharged to the outside from the tap water discharge port 22 at the tip thereof.

In FIG. 2, reference numeral 34 denotes a water purifier provided at a position distant from the faucet 10 for purifying tap water, and a pair of conduits 36 and 38 extend from the water purifier 34. As shown in FIG. 3, one conduit 36 is connected to a supply passage 40 formed inside and under the faucet body 14, and the other conduit 38 is also connected to the faucet body 14.
Is connected to a water purification passage 42 formed inside the. The supply passage 40 and the purified water passage 42 are partitioned by a partition.

The supply passage 40 is connected to the inflow passage 26 on the water side through a communication passage 43 inside the faucet body 14. A partition wall is provided on the communication passage 43 as shown in FIG. 4A, and an opening 44 is formed in the partition wall, and the opening 44 is opened and closed by an opening / closing valve 46. There is. Here, the opening / closing valve 46 is advanced and retracted by screw feeding in the axial direction based on the rotating operation of the handle 48, thereby opening / closing the opening 44.

In this example, when the on-off valve 46 is opened while the valve portion is closed by operating the single lever 28, the water sent into the inflow passage 26 through the water supply pipe 16 is supplied from the opening 44. Flowing into the passage 40,
Then, it is sent to the water purifier 34 through the conduit 36. Then, the tap water is purified here and then sent into the water purification passage 42 inside the faucet body 14 through the conduit 38 (see FIG. 4B).

Inside the water discharge pipe 20, as shown in FIG. 3, an inner pipe 50 for separately circulating only the purified water purified by the water purifier 34 is inserted and arranged. The proximal end of the inner pipe main body 51, which is the main constituent of the above, is connected to the outlet 52 of the water purification passage 42 inside the faucet main body 14. Then, the purified water is discharged from the purified water discharge port 102.

FIG. 1 shows the structure of the tip of the water discharge pipe 20. As shown in the figure, in this example, the water discharge pipe 20
The main body has a double pipe structure including an outer pipe 54 and an inner pipe 50 arranged inside. The purified water passage 56 is formed inside the inner pipe 50, and the tap water passage 58 is formed outside the inner pipe 50 and inside the outer pipe 54.

The outer tube 54 is made of metal, and the tip fitting 60 that constitutes the tip end part and the outer tube main body 62 on the rear side of the tip fitting 60 are formed separately from each other. The outer tube 54 as a whole is formed by joining by brazing or the like.

Here, the tip end metal fitting 60 is formed so as to be substantially thinner than the outer pipe main body 62, and a flange portion 64 at the rear end protruding in the direction perpendicular to the axis is fitted into the outer pipe main body 62. The outer tube body 6 through the positioning member 66
It is brought into contact with the second stepped portion 68.

As shown in FIG. 5, the positioning member 66 is a ring-shaped member as a whole, and includes an outer ring 70, an inner ring 72, and a connecting portion 7 connecting them.
It consists of 4 and. The outer ring 70 is fitted to the inner surface of the outer pipe body 62, and the inner ring 72 is fitted to the inner pipe body 5.
The front end of the inner pipe body 51 is fitted and fitted to the outer surface of the front end of the outer pipe body 1, and is positioned and held at the same coaxial position as the outer pipe body 62. The positioning member 66 is mounted inside the outer pipe main body 62 in a state of being sandwiched in the axial direction by the stepped portion 68 of the outer pipe main body 62 and the flange portion 64 of the tip end fitting 60.

The outer tube 54 has an open end,
An end member 76, which is generally tubular, is inserted into the outer tube 54 through the opening. Here, the end member 76 is made of resin. The end member 76 has a tubular portion 78.
And a closing portion 80 formed at the tip of the tubular portion 78 in the direction perpendicular to the axis. The closing portion 80 is inserted into the outer tube 54 with the tip opening of the outer tube 54 being closed. ing.

The rear end of the tubular portion 78 has an opening shape, and the front end portion of the inner pipe main body 51 is fitted into the tubular portion 78 through the rear end opening portion. In this example,
The inner pipe body 51 and the tubular portion 78 of the end member 76 form the inner pipe 50.

From the outer peripheral portion of the closing portion 80, a short cylindrical portion 86 further extends forward. An outward flange portion 88 is formed at the tip of the cylindrical portion 86, and the flange portion 88 abuts on the tip of the outer tube 54 to define the amount of fitting of the end member 76.

A plurality of (two in this example) elastic engaging claws 90 are formed on the cylindrical portion 86, and the elastic engaging claws 90 are formed on the outer tube 54. 92 is engaged. Then, based on the engagement action of the elastic engagement claw 90 and the engagement recess 92, the end member 76 is moved to the outer tube 54.
Is axially fixed to. Incidentally, 94 is the cylindrical portion 8
6 is a reinforcing rib formed in 6.

As shown in FIG. 5, the cylindrical portion 86 is formed with a projection 110 projecting rearward from the brim-shaped portion 88 at a predetermined position in the circumferential direction. It engages in a notch 112 formed at a corresponding position in the direction. The positions of the end member 76 and the tip fitting 60, that is, the outer tube 54 in the rotational direction are defined based on the engagement between the projections 110 and the notches 112.

The heat insulating cap 24 made of resin as the water discharge pipe cap has a tubular shape as a whole and a bag-like end portion, and the outer surface of the outer pipe 54, specifically, the outer surface of the outer pipe 54, is opened through the opening at the rear end. The tip end fitting 60 is watertightly fitted to the outer surface of the tip fitting 60 via an O-ring 96 with substantially no space.

A cylindrical portion 98 is integrally formed in the lower portion of the heat insulating cap 24 so as to project downward, and a discharge port cap 100 is screwed and fixed to the lower end portion of the cylindrical portion 98. That is, the cylindrical portion 98 and the discharge port cap 100 form the tap water discharge port 22 at the tip of the water discharge pipe 20. Here, the purified water outlet 102 is arranged coaxially inside the tap water outlet 22 (see FIGS. 1 and 3).

The tubular portion 78 of the end member 76 is
A rear side portion close to the closing portion 80 is recessed upward, and a purified water outlet 106 is formed downward in the recessed portion 104. The purified water outlet 106 is composed of a downward cylindrical portion integrally formed with the tubular portion 78. On the other hand, the outer pipe 54 has a tap water outlet 10 having a diameter larger than that of the purified water outlet 106.
8 is formed downward at the same position as the purified water outlet 106.

Reference numeral 114 denotes a guide cylinder (here, made of resin), which has a cylindrical guide body 115. A movable cylinder forming the purified water discharge port 102 is fitted on the inner surface of the guide body 115 so as to be vertically slidable with the inner surface of the guide body 115 as a guide surface. The upper end of the guide cylinder 114 is connected to the purified water outlet 106.

The guide body 1 in this guide cylinder 114
An upper annular groove 116 and a lower annular groove 118 for defining the retracted position and the protruding position of the purified water outlet 102 are formed on the inner surface of 15 (see FIG. 6), and are fixed to the respective annular grooves 116, 118. Rings 120, 122 are fitted. At the lower end of the guide body 115, a flange-shaped spring receiving portion 124 is formed so as to project inward.

The lower end of the guide cylinder 114 is in contact with the two straightening meshes 132 received by the inward flange portion of the lower end of the discharge port cap 100. That is, the guide cylinder 114 is assembled and held in a state of being sandwiched between the recessed portion 104 of the end member 76 and the rectifying mesh 132. Incidentally, 130 is a ring-shaped rubber packing.

The guide tube 114 has a tap water passage 1 on the outside.
26, along its path 126:
A plurality of straightening vanes 128 extending in the vertical direction are formed along the outer surface of the guide body 115 at predetermined intervals in the circumferential direction.

The purified water outlet 102 has a flange portion 13
The outer peripheral end surface of 8 is slidably fitted to the inner peripheral surface of the guide cylinder 114, and the outer peripheral surface of the tubular portion 136 is slidably fitted to the inner peripheral surface of the spring receiving portion 124 of the guide cylinder 114. A moving guide is provided in the vertical direction by 114.

The flange portion 138 of the purified water outlet 102
The upper end of a spring member 142 made up of a compression coil spring is in contact with. The lower end of the spring member 142 is in contact with the spring receiving portion 124 at the lower end of the guide cylinder 114, and exerts a spring force upward on the purified water outlet 102. That is, the purified water discharge port 102 is biased upward by the spring member 142, that is, in the retracting direction.

Here, as shown in FIG. 1, the purified water discharge port 102 has its lower end fitted into a fitting hole 134 formed at the center of the rectifying mesh 132 in the retracted state. The retracted position is predetermined.
At the lower end opening of the purified water outlet 102, a mesh 140 as a pressure receiving portion that receives the discharged pressure of the purified water in its protruding direction.
Is stretched.

Next, the operation of the water discharge pipe 20 of this example will be described.
In this example, the purified water flowing out from the purified water outlet 106 formed in the tubular portion 78 of the end member 76 is the purified water outlet 10.
It flows through the inner passage of No. 2 and is discharged from the lower end opening.

At this time, the purified water outlet 102 is caused to project downwardly against the urging force of the spring member 142 based on the discharged pressure of the purified water acting on the mesh 140 as the pressure receiving portion. That is, the flange portion 138 is projected to the outside of the tap water discharge port 22 to a position where it comes into contact with the retaining ring 122, and in that state, purified water is discharged from the lower end opening.

Therefore, the user can visually recognize that the purified water is reliably discharged, and can use the purified water with peace of mind. The mesh 140 at the lower end of the purified water discharge port 102 also has a rectifying function, and the purified water is discharged in a properly rectified state.

On the other hand, when the discharge of the purified water is stopped, the purified water outlet 102 is retracted by the urging force of the spring member 142 to a position entirely hidden inside the tap water outlet 22.

On the other hand, when tap water is discharged, the tap water sent through the tap water passage 58 inside the discharge pipe 20 flows through the tap water passage 126 formed on the outer peripheral surface of the guide cylinder 114, and then tap water is discharged. It is discharged from the outlet 22. At this time, the tap water is rectified by the rectifying mesh 132 provided at the lower end opening of the discharge port 22 and then discharged to the outside. However, in the case of this example, since the central portion of the rectifying mesh 132 is in a closed state, the discharge flow of the tap water becomes a donut flow just below the discharge port 22.

In this example, the end member 76 is the closing part 8.
0, the closing portion 80 closes the front end opening portion of the outer pipe 54 in the main body portion of the water discharge pipe 20, and the purified water outlet 106 is provided at the rear side portion of the closing portion 80.
Since the tap water outlet 108 and the tap water outlet 108 are provided downward at the coaxial position, the pressure of the purified water and tap water does not act axially on the heat insulating cap 24 as the water discharge pipe cap. It may come off based on pressure,
It has the feature that purified water and tap water do not jump forward.

Next, FIGS. 7 and 8 show another embodiment of the present invention. In this example, the heat insulating cap 24
The tap water discharge port 22 is formed by the cylindrical portion 98 formed downward and the discharge port cap 100 screwed and fixed to the cylindrical portion 98. In this example, a plurality of legs 166 are formed in the lower end portion of the guide cylinder 114 at predetermined intervals in the circumferential direction, and a gap through which tap water passes is formed between the legs 166. The lower ends of the legs 166 are brought into contact with the upper surface of the rectifying mesh 168.

On the other hand, the rectifying mesh 168 is provided with a mesh-shaped tubular portion 170 in an upright shape at the center thereof, and a fitting hole 172 is formed inside the tubular portion 170. Here, the mesh-shaped tubular portion 170 includes the legs 16
6 are formed on the inner side of them so as to be in contact with the inner surfaces thereof.

In this example, the purified water discharge port 102 has a predetermined drawing-in position so that the lower end thereof is fitted into the upper end of the mesh-like tubular portion 170 in the drawn-in state. The projecting position is selected so that the lower end thereof projects to the outside of the tap water discharge port 22 when projecting.

In this example, tap water flowing out from the outlet 108 formed in the tip end fitting 60 of the outer pipe 54 flows through the passage 126 outside the guide cylinder 114 and is discharged to the outside through the rectifying mesh 168. .

At this time, tap water flows into the center of the rectifying mesh 168 through the gap between the plurality of legs 166 formed at the lower end of the guide tube 114 and the mesh-shaped tubular portion 170, so that tap water The discharge flow of is not a donut flow, but is discharged as a single bundle

The water discharge pipe 20 of this embodiment is similar to the above embodiment.
When the purified water is used, the purified water outlet 102 is projected from the tap water outlet 22 to the outside, so that the user can visually recognize that the purified water is reliably discharged, and use the purified water with confidence. It has the advantage that

Next, FIGS. 9 and 10 show still another embodiment of the present invention. In this example, a plurality of legs 166 are formed in the lower end portion of the guide cylinder 114 at predetermined intervals in the circumferential direction, so that a gap through which tap water passes is formed between the legs 166, while the purified water outlet 102 is formed. A cylindrical mesh portion 214 extending downward is formed at the lower end of the.

As shown in FIG. 9, the tubular mesh portion 214 has its lower end fitted in the fitting hole portion 134 at the center of the rectifying mesh 132 in the retracted state, so that the entire purified water outlet 102 is formed. Is drawn into the tap water discharge port 22.

The tubular mesh portion 214 has a height such that the upper end thereof reaches the base position of the leg 166 in the guide tube 114, and therefore the tap water passage 126 has a gap between the plurality of legs 166 of the guide tube 114. It is in a state of communicating with the central portion of the rectifying mesh 132 via the cylindrical mesh portion 214. That is, tap water from the passage 126 can flow (inflow) to the center of the rectifying mesh 132 through the tubular mesh portion 214 of the purified water outlet 102.
It has become.

As in the first and second embodiments, the water discharge pipe 20 of this example has a state in which the purified water discharge port 102 protrudes from the tap water discharge port 22 to the outside when the purified water is used. It has the advantage of being able to visually recognize that water is being reliably discharged, and that purified water can be used with peace of mind, and as in the case of the second embodiment, when tap water is discharged, the tap water has a cylindrical mesh portion. Rectifying mesh 13 through 214
Since it flows to the central part of 2, the discharge flow of tap water does not become a donut flow, and has the advantage of becoming a single coherent flux.

The embodiment of the present invention has been described in detail above, but this is merely an example. For example, in the present invention, FIG.
It is also possible to provide an inwardly projecting flange portion at the lower end portion of the movable cylinder constituting the purified water discharge port 102 as shown in FIG.

In the above example, purified water purified by the water purifier 34 is used as the second liquid, but alkaline ionized water or other liquid may be used depending on the case.

Further, the present invention can be applied to other forms of faucets, and can be constructed in variously modified forms without departing from the spirit of the invention.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of a main part of a tip end portion of a water discharge pipe that is a first embodiment of the present invention.

FIG. 2 is an overall view showing a hot and cold water mixing faucet having the water discharge pipe of FIG. 1 together with a water purifier.

FIG. 3 is a partially cutaway cross-sectional view for showing distribution paths of hot water, water, and purified water of the hot and cold water mixing faucet in the embodiment.

FIG. 4 is a diagram showing a flow path of purified water in FIG. 3 together with a peripheral portion.

5 is an exploded perspective view showing the distal end portion of the water discharge pipe shown in FIG. 1 by disassembling it into each component.

FIG. 6 is an exploded perspective view showing exploded parts of the discharge port at the tip of the water discharge pipe and its peripheral part in FIG.

FIG. 7 is an enlarged cross-sectional view of the essential parts of another embodiment of the present invention.

8 is an exploded perspective view showing the distal end portion of the water discharge pipe in FIG. 7 by disassembling it into each component.

FIG. 9 is an enlarged sectional view of a main part of still another embodiment of the present invention.

10 is an exploded perspective view showing the distal end portion of the water discharge pipe in FIG. 9 by disassembling it into each component.

FIG. 11 is a partially cutaway perspective view of a purified water discharge port according to another embodiment of the present invention.

FIG. 12 is a sectional view of a main part of a conventional water discharge pipe.

[Explanation of symbols]

 20 Water Discharge Pipe 22 Tap Water Discharge Port 50 Inner Pipe 54 Outer Pipe 102 Purified Water Discharge Port 106 Purified Water Outlet 108 Tap Water Outlet 114 Guide Cylinder 126 Passage 128 128 Straightening Piece 132,168 Straightening Mesh 134,172 Fitting Hole 140 Mesh 142 142 Spring Member 146 Pressure receiving section 170 Cylindrical section 214 Cylindrical mesh section

Claims (7)

[Claims] 1. A tap water passage and a second liquid passage for purified water or the like independent of the tap water passage are formed inside the water discharge pipe main body, and a tap water outlet and a second liquid are provided at a tip end portion. And a discharge port of the second liquid discharge port, wherein the second liquid discharge port is capable of moving in and out between a protruding position protruding outside and a retracted position retracted entirely inside. Discharge pipe characterized by. 2. The pressure receiving portion for receiving the pressure of the second liquid in the projecting direction is provided at the second liquid discharge port, and the second liquid discharge port is a spring member. A water discharge pipe, which is biased in a retracting direction, wherein the second liquid discharge port is caused to move to the above-mentioned protruding position by the discharge pressure of the second liquid. 3. The tap water discharge port and the second liquid discharge port according to claim 1, wherein the tap water discharge port and the second liquid discharge port are provided coaxially with each other, and a fitting hole portion is formed at a center portion at a lower end opening portion of the tap water discharge port. A rectifying mesh having the same is disposed, and the retracted position of the second liquid discharge port is determined at a position where the lower end portion of the second liquid discharge port is fitted into the fitting hole portion at the retracted position. Characteristic water discharge pipe. 4. The mesh-shaped tubular portion is provided upright in the central portion of the rectifying mesh according to claim 3, and the inside of the tubular portion serves as the fitting hole portion, and in the retracted state. The water discharge pipe is characterized in that the retracted position is determined so that the lower end portion of the second liquid discharge port fits into the upper end portion of the tubular portion. 5. The cylindrical mesh portion according to claim 3 or 4, wherein a tubular mesh portion is formed at a lower end portion of the second liquid discharge port, and the mesh portion is fitted into the fitting hole portion at the retracted position. Discharge pipe characterized by being made. 6. The method according to claim 1, 2, 3, 4, or 5,
The water discharge pipe main body has a double pipe structure of an outer pipe and an inner pipe,
The second liquid passage is formed inside the inner pipe, and a tap water passage is formed between the inner pipe and the outer pipe, and a downward second liquid outlet and a second liquid outlet are provided in each of the inner pipe and the outer pipe. The tap water outlet is formed coaxially, the tap water outlet is connected to the tap water discharge port, a guide tube is connected to the second liquid outlet, and a movable tube slides vertically in the guide tube. A water discharge pipe, which is movably fitted and in which the second liquid discharge port is formed by the movable cylinder. 7. The guide cylinder according to claim 6, wherein the guide tube forms a passage for tap water on the outer peripheral surface side, and the rectifying piece is formed in the vertical direction along the outer peripheral surface. A water discharge pipe.