JP2589950Y2 - Water faucet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand spray type faucet which can switch and supply fluids having various properties such as tap water, purified water, soapy water and the like.

[0002]

2. Description of the Related Art In recent years, a water purifier for purifying water has been introduced. In a facility equipped with a normal hot / water mixer tap, a water tap dedicated to the water purifier is additionally provided. It came to be connected to the supply path from. However, separately providing such a tap for exclusive use of the water purifier not only increases the bulk of the equipment but also tends to affect usability.

On the other hand, for example, Japanese Utility Model Application Laid-Open No. 2-1216
As described in Japanese Unexamined Patent Publication No. 73-117 and Japanese Utility Model Application Laid-Open No. 4-117272, a faucet body is provided with a water supply path to a water purifier and a flow path for directing purified water after purification to a discharge end. It has already been proposed.

On the other hand, as a water supply / hot water supply facility such as a sink or a basin, a hand spray type faucet has been widely used. This is a basic structure in which a part of a main body fixed to an installation surface has a hollow structure, and a hose can be freely taken in and out of the main body so that a hand spray can be pulled out from the main body and used. An example of such a hand spray type faucet is described in Japanese Utility Model Publication No. 3-6774.

[0005]

[Problems to be Solved by the Invention] A structure is adopted in which the spout can be turned with respect to the main body so that the position of water supply from the spout can be changed when a faucet is used, including a general faucet. . For example, the aforementioned Japanese Utility Model 4-1172
No. 72 discloses a structure in which the direction of the spout is changed by rotatably attaching a cylindrical member in which the spout is integrated around the main body.

[0006] In such a faucet which only rotates a member in which the spout is integrated, connection of a water supply pipe from a water purifier can be made relatively simple. For example, as described in the above-mentioned publication, mixed water is used. The flow path for fresh water and the flow path for fresh water can be separately formed, and can be discharged from each discharge end.

However, in a hand spray type faucet,
Since the connection to the water discharge head is made by a flexible tube, a hose, or the like, it is different from the piping having the conventional structure, and cannot be used as it is. For example, it is necessary to solve the problem because the tube and hose are likely to be twisted if the connection structure between them is not appropriate because the water discharge head is pulled out while connected to the tube or hose. is there.

[0008] In addition to the connection with the water purifier, there is a similar problem in the field of discharging various types of fluids having different properties independently from a hand spray type faucet.

The problem to be solved in the present invention is that when a plurality of different fluids are discharged from a hand spray type faucet, a stable usability is ensured without twisting a supply pipe such as a tube or a hose connected to a water discharge head. To get it.

[0010]

DISCLOSURE OF THE INVENTION The present invention is directed to a water discharge head having a plurality of water passages for raw water and a fluid having properties different from the raw water, and a plurality of discharge ports, which can be inserted into and removed from the main body of the faucet. And a water faucet in which the plurality of discharge ports provided in the water discharge head and the plurality of water passages are respectively independently communicated by a plurality of flexible communication passages, wherein the plurality of communication passages are substantially mutually A concentrically arranged multi-tube structure including a flow path formed by adjacent pipes, wherein the communication path of the multi-tube structure is rotatable around both its axis with respect to both the water passage and the water discharge head. It is characterized by.

A fluid having a property different from that of raw water is purified water. In the present invention, "raw water" means water, hot water and a mixed water thereof.

[0012]

When the water discharge head is removed from the main body and used, the communication path of the multi-pipe structure provided between the water discharge head and the plurality of water passages can rotate around the axis with respect to both the water discharge head and the water passage. Even if the direction of the water discharge head is changed variously, twisting or the like does not occur in the water passage on the upstream side.

[0013] When purifying a fluid having a property different from that of raw water, it can be used as a drinking water facility in addition to the use of water, hot water and a mixture thereof, and the water discharge head is directed upward. It can be used suitably when it is often used.

[0014]

1 is a diagram showing an outline of a hand spray type faucet of the present invention together with its piping system.

In the drawing, a swivel base 2 is rotatably mounted around a main body 1 of a faucet fixed by penetrating a lower end portion to an installation surface, and a water discharge head 3 can be inserted into and removed from a holder 2a protruding from the swivel base 2. In preparation.

A water supply main pipe 4a from the outside is provided at a lower part of the main body 1.
The hot water supply main pipe 4b is connected, and a pipe is provided between the hot water supply main pipe 4b and the water purifier 5 provided separately. This pipe is provided with a branching tool 6 for dividing the path into a path for directly supplying the mixed water from the main body 1 to the water discharge head 3 and a path for feeding the mixed water from the main body 1 to the water discharge head 3 by passing only the water through the water purifier 5. A water supply pipe 7 for sending water from the main body 1 to the water purifier 5 is provided between the main body 1 and the water purifier 5.
And a reflux pipe 8 is connected between the outlet side of the water purifier 5 and the branching tool 6. Further, a mixed water supply pipe 9 is connected between the main body 1 and the water purifier 5 to supply purified water from the water purifier 5 and mixed water from the main body 1 to the water discharge head 3 through separate flow paths. A supply pipe 10 is provided.

A lever 1a for operating a valve element is provided at an upper end of the main body 1, and is connected to an internal valve element. As this valve element, for example, a configuration similar to that of Japanese Utility Model Laid-Open No. 4-117272 described in the section of the prior art can be adopted. That is, the movable valve plate whose position is changed by the lever 1a is superimposed on the fixed valve plate arranged in the main body 1, and the mixing ratio and flow rate of hot water and water are made variable depending on the position of the movable valve plate by operating the lever 1a. What is necessary is just to have the function which supplies and stops only the water from the water supply pipe 4a to the water purifier 5.

FIG. 2 is a longitudinal sectional view showing a main part of the branching tool 6 and the supply pipe 10 connected thereto.

The branch fitting 6 is such that the right end of its internal flow path is a purified water inlet 6a connected to the water purifier 5 side, and the left end is a mixed water inlet 6b connected to the mixed water supply pipe 9. is there. Then, the connection seat 6c is raised upward from an intermediate position between the inlets 6a and 6b, and the two inlets 6a and 6b are raised.
The channels from a and 6b to the flow channel end of the connection seat 6c are divided into two flow channels. That is, an inner pipe 6d communicating with the purified water inlet 6a is provided at the center of the inside of the connection seat 6c, and the periphery thereof is formed as a mixed water flow path 6e having an annular cross section.

The water supply pipe 10 is a flexible pipe made of metal, and has an outer tube 10 made of rubber along its inner wall.
a and an inner tube 10b similarly made of rubber is provided coaxially.

A first joint 11 and a second joint 12 are provided for connecting the supply pipe 10 to the branching tool 6 so as to be rotatable around its axis.

The first joint 11 is connected to the connection seat 6 of the branching tool 6.
c. The sleeve 11a is coaxially connected to the sleeve c by a screw joint, and a sleeve 11a is provided coaxially at the center thereof, and a plurality of mixed water holes 11b are formed as an annular row around the sleeve 11a. The sleeve 11a has an axial length protruding toward the supply pipe 10 from an end face where the mixed water hole 11b is opened.

The second joint 12 is the first joint 11
It is housed in a cylindrical housing 13 integrated by screwing into the housing 13 and sealed by a packing 13a. A bushing 14 for supporting around the upper end of the second joint 12 is provided inside the housing 13.
And a ring 15 that is screwed to the bushing 14 and restrains the supply tube 10 to the housing 13 side.

The second joint 12 is provided with an annular seat 12a coaxially in the middle of the axial direction thereof, a connection hole 12a serving also as a flow path for purified water is opened in the axial direction, and a plurality of holes 12b for mixed water are provided therearound. Are arranged annularly.

Further, a socket 16 and a retainer ring 17 for joining the first joint 11 and the second joint 12 together with the inner tube 10b are provided, respectively, and the outer tube 10a of the inner tube 10b is formed by the socket 16 and the retainer ring 17. Can be adjusted in length.

FIG. 3 shows the socket 16 and the retainer ring 1.
7 is an enlarged vertical cross-sectional view of the connection structure of the inner tube 10b by an inner tube 10b. An engaging claw 16a is formed on the outer periphery of the upper end side of the socket 16, and the inner tube 10b is disposed between the engaging claw 16a and the retainer ring 17. It is fitted and restrained. The lower end of the socket 16 is connected to the sleeve 1 via a packing 11c.
1a so as to be rotatable around the first joint 1a, and the outer peripheral surface below the engaging claw 16a is connected to the second joint 1 via a packing 16b.
2 is rotatably inserted into the second connection hole 12a. A guide hole 12c for the retainer ring 17 having a slightly smaller inner diameter is provided at the upper end side of the connection hole 12a, and the lower end wall is used as a block for restraining the upward movement of the socket 16.

In such a branching tool, the purified water from the purified water inlet 6a is supplied from the inner pipe 6d to the sleeve 1 of the first joint 1.
1a, through the socket 16 and the inner tube 10
b. The mixed water from the mixed water inflow port 6b is supplied from the mixed water hole 11b of the first joint 11 to the second
The water is supplied to the outer tube 10a from the joint water hole 12b.

The lower end of each of the outer tube 10a and the inner tube 10b of the supply tube 10 is joined to a second joint 12, which is rotatable about its axis in a housing 13. is there. The socket 16 connecting the second joint 12 to the first joint 11 is connected to the sleeve 1 via the packing 11c.
A portion extrapolated around 1a is rotatable with respect to the sleeve 11a. Therefore, when the supply pipe 10 is rotated around its axis, the outer and inner tubes 10 at the lower end thereof are rotated.
a and 10b also rotate with this, and do not cause twisting.

The socket 16 and the first joint 11
In the connection structure with the first joint 1
A groove may be formed in the outer periphery of the socket 1 and slits corresponding to the groove may be cut in the socket 16 at two locations facing each other in the radial direction, and the socket may be connected by fitting a pin into the slit. In this case, an approximately U-shaped pin can be used, and the socket 16 can be rotatably connected to the first joint 11 by inserting it into a slit and dropping it into the groove of the first joint 11.

FIG. 4 is a longitudinal sectional view of a main part showing a structure for connecting a flow path to the water discharge head 3.

The water discharge head 3 forms a water purification chamber 3a and a mixed water chamber 3b. A discharge pipe 3c is provided at the end of the water purification chamber 3a. A spray outlet 3e is provided. And, it has a mechanism that can operate a valve element for switching the flow path to these by the handle 3f.

The water discharge head 3 has a water purification chamber 3a.
Inner tube 3 for connecting the flow path between the inner tube 10b and the inner tube 10b
g is provided. The inner pipe 3g is built in a double tubular shape at the inflow portion of the water discharge head 3, and one end thereof is connected to the water purification chamber 3a. The connection between the supply pipe 10 and the water discharge head and the inner pipe 3g has the same structure as that using the first and second joints 11 and 12 between the branching tool 6 shown in FIG. is there. That is, the first joint 11 is connected to the base end of the water discharge head 3 and its sleeve 11
a and the inner pipe 3g, and the second joint 12 is connected to the first joint 11 in the same manner as in the previous example.

The same applies to the other members, which are indicated by the same reference numerals as those shown in FIG. 2, and detailed description thereof is omitted.

With such a connection structure between the water discharge head 3 and the supply pipe 10, the water discharge head 3 and the supply pipe 10 are connected.
Are freely rotatable with each other, and even if the water discharge head 3 is pulled out from the holder 2a to assume various postures, the supply pipe 10 is not twisted.

When the supply pipe 10 is connected to the water discharge head 3 and the branching tool 6, the position of the inner tube 10b in the axial direction is moved by moving the socket 16 in the direction of the arrow as shown in FIG. Can be changed. For this reason, even if there is an assembly error at the time of pipe connection of the supply pipe 10, if the construction is performed with the length of the outer tube 10a as a fixed reference, the length of the inner tube 10b can be adjusted by a socket. 16 movement amounts can be obtained. This means that not only the branching tool 6 but also the first and second joints 1
The same applies to the water discharge head 3 connected to the supply pipe 10 by a similar connection structure such as the sockets 1 and 12 and the socket 16.

As described above, the first and second joints 11,
Outer and inner tubes 10a, 10
By providing a length adjustment allowance with b, the construction can be simplified. In addition, instead of using the movement of the socket 16, as shown in FIG.
The bellows portion 10c which can be extended and contracted in the axial direction is provided in a part of Ob, and the extension and contraction of this portion can be used as a length adjustment margin.

In the above configuration, when the valve mechanism is set for purified water spouting by operating the lever 1a, only water from the water supply main pipe 4a is supplied from the water supply pipe 7 to the fresh water purifier 5 through the main body 1, and the return pipe 8 The purified water is sent to the branching tool 6 from the.
Then, purified water is supplied from the branching tool 6 to the inner tube 10b via the sleeve 11a, and the discharge pipe 3 of the water discharge head 3
Water is discharged from c.

When a valve mechanism is set on the supply side of the mixed water of hot water and water, mixed water of hot water and hot water from the hot water supply main pipes 4a and 4b is supplied to the branching tool 6 by the mixed water supply pipe 9. Is done. The mixed water passes through the mixed water holes 11b and 12b of the first and second joints 11 and 12, and flows out of the annular cross-sectional flow path defined by the inner tubes 10a and 10b. Head to 3b. Then, the mixed water is discharged from either the rectified water discharge port 3d or the spray water discharge port 3e in which the opening and closing of the flow path is set by the handle 3f.

As described above, the fresh water and the mixed water are discharged from the water discharge head 3 through the independent flow paths, and the fresh water and the mixed water are used even in a hand spray type in which the supply pipe 10 is drawn out from the holder 2a. Can be supplied.

The supply pipe 10 is connected to the branching tool 6 on the base end side.
Since the water discharge head 3 can be relatively rotated with respect to both the water discharge head 3 and the water discharge head 3 on the distal end side, even if the water discharge head 3 is pulled out from the holder 2a and used, the supply pipe 10 is not twisted. Therefore, even when the position of the water discharge head 3 is changed when the water discharge head 3 is held by hand, the reaction force due to the twisting of the supply pipe 10 does not act, so that light handling is sufficient.

FIG. 6 is a longitudinal sectional view of a main part showing another embodiment of the branching tool 6. As shown in FIG.

The axes of the purified water inlet 6a and the mixed water inlet 6b are arranged orthogonal to each other, and the connection seat 6c is connected to the mixed water inlet 6b.
And the inner pipe 6d protrudes outside the connection seat 6c to form a mixed water flow path 6e around the inner pipe 6d.

The first joint 11 has a hollow cylindrical shape slightly different in structure from the previous example, and has a base end connected to the branching tool 6 and a housing 13 joined to the front end. A second joint 12 is rotatably assembled around the axis from the first joint 11 to the housing 13, and sandwiches the outer tube 10 a between the first joint 11 and a bushing 14 fixed by a ring 15.

The socket 18 to be inserted between the inner tube 6d and the inner tube 10b is
a is engaged with a spline 18a, and is connected to a connecting ring 19 fixed in the first joint 11 with a screw 18b. In the connecting ring 19, a plurality of flow passage holes 19a are arranged and opened in a ring shape, and the mixed water flow passage 6e and the second joint 1a are formed.
And communication between the two. In addition, a ring 20 for fitting the inner tube 10b and holding the inner tube 10b in the socket 18 is provided at one end of the socket 18.

In the branching tool 6 of this example, the outer tube 10a is first incorporated into the supply tube 10 and then the inner tube 10a.
b can be inserted and its length adjusted after this installation. The procedure will be described below with reference to FIG.

In FIG. 4, the water discharge head 3 and the first joint 11 are detached from the second joint 12, and the inner tube 10b is set up so that the inner tube 10b can be inserted from the second joint 12 toward the branching tool 6.

Next, the outer tube 10a is passed through the supply pipe 10, and one end thereof is connected between the second joint 12 and the bushing 14 as shown in FIG.
Also, the other end of the outer tube 10a is similarly connected by the second joint 12 and the bushing 14 (FIG. 6).

Here, at both ends of the inner tube 10b, ones to which the socket 16 shown in FIG. 4 and the socket 18 described in FIG. 6 are respectively attached are prepared. Then, the inner tube 10b is inserted from the second joint 12 on the side of the water discharge head 3, and the socket 16 in FIG.
Is the uppermost part and the socket 1 is located at the lower end of the guide hole 12c.
6. Insert until the large diameter part of 6 abuts.

By inserting the inner tube 10b, the socket 18 is connected to the spline 1 by the second joint 12.
8a, the shaft advances in the axial direction while engaging, and reaches a position outside the second joint 12. Then, the connecting ring 19 is screwed into the screw 18b at the tip of the socket 18.

Here, the insertion amount of the inner tube 10b is an amount until the large diameter portion of the socket 16 hits the lower end of the guide hole 12c, and the distance between the water discharge head 3 and the branching tool 6 is set to a minimum. Is done. On the other hand, connecting ring 1
When the dial 9 is turned, the socket 18 is engaged with the second joint 12 by the spline 18a, so that the socket 18 is moved in the axial direction by the screw gear mechanism. Therefore, by setting the amount of movement, the length of the inner tube 10b with respect to the outer tube 10a that is first incorporated can be adjusted.

After the above adjustment work, if the first joint 11 is connected to the second joint 12 on each side of the branching tool 6 and the water discharge head 3, the assembly of the supply pipe 10 is completed. Then, even in the case of the branching tool 6 shown in FIG. 6, an operation in which the supply pipe 10 is not twisted with respect to the rotation about the axis of the supply pipe 10 is possible as in the previous example.

Although the embodiment has been described with reference to the two flow paths of the mixed water and the purified water, it is a matter of course that the water supply system may include soap water or other water supply.

[0053]

[Effects of the Invention] In the present invention, even if the water spray head such as a hand spray type is pulled out from the main body of the faucet and used in various postures, the main body side is not twisted between the water discharge head and the upstream member. However, since it can move freely even on the water discharge head side, it can be handled easily without adding a reaction force due to twisting to the hand. Also, since there is no torsion of the piping to the water discharge head, no excessive force acts on the upstream piping or the connection with the water discharge head, and there is no damage to the members and good sealing. Dripping.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a piping system for supplying two fluids of purified water and mixed water from a water purifier according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part showing a use of a branching tool.

FIG. 3 is an enlarged view of a main part of FIG. 2, showing a mechanism for adjusting the length of an inner tube.

FIG. 4 is a longitudinal sectional view of a main part showing a flow channel structure formed by a water discharge head and first and second joints.

FIG. 5 is a schematic longitudinal sectional view showing an example in which a part of the inner tube is used as a bellows portion and its length is adjusted.

FIG. 6 is a longitudinal sectional view showing a main part of a branching tool provided with another example of the inner tube length adjusting mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Revolving base 3 Water discharge head 4 Revolving base 4a Water supply main pipe 4b Hot water supply main pipe 5 Fresh water purifier 6 Branch tool 7 Water supply pipe 8 Reflux pipe 9 Mixed water supply pipe 10 Supply pipe 10a Outer tube 10b Inner tube 10c Bellows 11th 1 joint 12 second joint 13 housing

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) E03C 1/04 E03C 1/042 E03C 1/046

Claims (2)

(57) [Scope of request for utility model registration] 1. A water discharge head provided with a plurality of water passages for raw water and a fluid having properties different from the raw water, a plurality of discharge ports, and which can be inserted into and removed from the main body of the faucet, and the water discharge head. A faucet in which a plurality of discharge ports and the plurality of water passages are independently communicated with each other by a plurality of flexible communication passages, wherein the plurality of communication passages have a multi-tube structure substantially concentrically arranged with each other. A water faucet comprising a flow path formed by adjacent pipes, wherein the communication path of the multi-pipe structure is rotatable around its axis with respect to both the water passage and the water discharge head. 2. The faucet according to claim 1, wherein the fluid having a property different from that of the raw water is purified water.