JPH1113095A - Fitting structure for water discharge head of double water discharge pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and surely fit a water discharge head to a double water discharge pipe by providing a main passage communicated with a main water discharge port opened on the end face of a double water discharge pipe side and an auxiliary passage communicated with an auxiliary water discharge port, inserting and connecting an inner pipe into the auxiliary passage, and connecting the double water discharge pipe and the water discharge head via a connection section outwardly connected with an outer pipe at the outer peripheral portion. SOLUTION: A water discharge head 30 is fitted to the tip section of a water discharge pipe 10 extended on a faucet main body to form the fitting structure 1 of the water discharge head 30 of a double water discharge pipe. An inner pipe 11 is inserted into the water discharge pipe 10, and an auxiliary passage 14 is formed independently of a main passage 13 formed between an outer pipe and the inner pipe 11. The water discharge head 30 can selectively discharge city water or purified water, and it is provided with a city water discharge port 31 serving as a main water discharge port and a purified water discharge port 31 serving as an auxiliary water discharge port to discharge purified water below a main body. The water discharge head 30 can be simply and surely fitted to the double water discharge pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a water discharge head provided at the tip of a double water discharge pipe having an inner pipe forming an independent sub flow path inside an outer pipe forming a main flow path in a water discharge pipe main body. The present invention relates to a structure for mounting a water discharge head of a double water discharge pipe for mounting the water discharge head.

[0002]

2. Description of the Related Art Conventionally, in a water faucet for discharging purified water from a water discharge head such as a tap water or a shower head such as a shower head using a water purifier, for example, a water purifier is disposed at a position distant from a water discharge pipe. A so-called built-in type water purifier is used, in which water from the main body of the faucet is guided to a water purifier through a conduit, purified, returned to the main body of the faucet again, and discharged from a water discharge head at a distal end portion through a water discharge pipe. In this case, in order to prevent the purified water from being mixed with the tap water,
Tap water and purified water have been guided by a double water discharge pipe having an inner pipe that independently passes only purified water purified by a water purifier to a water discharge pipe.

[0003] Such a double spouting pipe is a conventionally cast product, and a complicated process for mounting a spouting head (for example, sealing the two flow paths of a main flow path and a sub flow path) at the tip thereof. High-precision drilling).
However, when attempting to form such a double water discharge pipe from a thin pipe material such as a copper pipe, for example, it is difficult to perform complicated processing on the distal end portion, and it is difficult to attach the water discharge head with a simple structure. It was difficult. In addition, the inner pipe inside the double water discharge pipe is in a floating state, and in order to securely connect and fix it, for example, it is necessary to mount another part in the double water discharge pipe, so that the number of parts is large. As a result, there has been a problem that the whole device cannot be made compact and the manufacturing cost increases.

[0004]

SUMMARY OF THE INVENTION The first aspect of the present invention solves the above-mentioned problems, and provides a simple water discharge pipe made of a thin pipe such as a copper pipe. Another object of the present invention is to provide a structure for mounting a water discharge head of a double water discharge pipe to which the water discharge head can be securely mounted. Another object of the present invention is to simply and reliably fix the inner pipe in a floating state when not connected to the water discharge head side to the water discharge head side.

According to a second aspect of the present invention, the connecting portion is formed as a separate joint member in the first aspect of the present invention. By simply changing the fitting shape of the joint member on the water discharge head side without changing the shape of the double water discharge pipe, the conventional water discharge head can be attached, and the water discharge of the double water discharge pipe excellent in versatility can be achieved. An object of the present invention is to provide a head mounting structure.

[0006] Further, the invention according to claim 3 of the present invention provides:
Similar to the second aspect of the present invention, in addition to the object of the first aspect of the present invention, the fitting of the joint member on the water discharge head side without changing the shape of the double water discharge pipe. An object of the present invention is to provide a structure for mounting a water discharge head of a double water discharge pipe which is excellent in versatility because a conventional water discharge head can be mounted simply by changing the shape.

[0007]

According to a first aspect of the present invention, there is provided a water discharge head mounting structure for a double water discharge pipe, wherein an outer pipe forming a main flow path and a sub flow path provided in the outer pipe are formed. Attachment of a water discharge head having a main discharge port communicating with the main flow path and a sub discharge port communicating with the sub flow path at a distal end of the double water discharge pipe having an inner pipe. A main communication passage communicating with the main discharge port and an auxiliary communication passage communicating with the sub-discharge port, each of which is opened at the end face on the double water discharge pipe side. A double water discharge pipe and a water discharge head are connected to each other through a connection portion in which a pipe is inserted and connected and the outer pipe is externally connected to an outer peripheral portion. By adopting this means, the double water discharge pipe and the water discharge head can be easily and reliably connected, and the inner pipe can be stably fixed to the water discharge head side.

According to a second aspect of the present invention, there is provided a water spouting head mounting structure for a double water spouting pipe according to the first aspect of the present invention, wherein the connecting portion is double spouted. A separate joint member fixed to the distal end of the water pipe, and a main communication passage of the joint member and a main discharge port side flow path provided in the water discharge head in communication with the main discharge port are inserted and connected to each other. In addition, the sub-communication passage of the joint member and the sub-discharge port side channel provided in the water discharge head in communication with the sub-discharge port are inserted and connected to each other. By making the connection part a joint member separate from the water discharge head, it is possible to connect the conventional water discharge head without changing the double water discharge pipe only by changing the shape of the connection part with the water discharge head. it can.

According to a third aspect of the present invention, there is provided a water discharge head mounting structure for a double water discharge pipe according to the second aspect of the present invention. A sleeve formed separately from the water discharging head and fixedly connected to the auxiliary communication passage of the joint member is fixed to the road.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a main part of a mounting structure of a water discharge head of a double water discharge pipe according to a first embodiment of the present invention.
FIG. 2 is a sectional view of an essential part of a mounting structure of a water discharge head of a double water discharge pipe according to another embodiment of the present invention. FIG. 3 is a sectional view of a main part of a structure for mounting a water discharge head of a double water discharge pipe according to another embodiment of the present invention.

Referring to FIG. 1, a mounting structure 1 for a water discharge head of a double water discharge pipe according to the present embodiment is attached to a distal end of a water discharge pipe 10 extending to a faucet body (not shown). The water discharge head 30 is attached. In the present embodiment, the main flow path 13 of the water discharge pipe 10 is used as the water discharge head 30.
A shower head having a main discharge port 31 capable of switching a water discharge form in a straight or shower shape for tap water or the like, and a sub discharge port 32 for discharging water in a straight shape for purified water from the sub flow path 14. Has adopted.

The water discharge pipe 10 is made of a copper alloy. Inside the water discharge pipe 10, an inner pipe 11 for independently flowing purified water purified by a water purifier (not shown) is provided. And a sub-flow path 14 independent of the main flow path 13 formed between the outer pipe 12 and the inner pipe 11. The water discharge pipe 10
In order to make the water discharge head 30 more convenient to use, the water discharge head 30 is bent slightly downward in the vicinity of the water discharge head 30, and therefore the inner inner tube 11 is also bent similarly.

The water discharge head 30 is capable of selectively discharging tap water or purified water. The tap water discharge port 31 serving as a main discharge port for discharging tap water, the sub-discharge port for discharging purified water, and the like. Each of the water purification outlets 32 as outlets is provided at a lower portion of the main body. A tap water flow path 33 as a main discharge port side flow path, which is formed in the water discharge head 30 so as to communicate with the tap water discharge port 31 and communicate with the tap water discharge port 31 from the base end of the water discharge head 30. Similarly, a purified water flow path 34 is provided as a sub-discharge port side flow path, which is formed by communicating from the base end to the purified water discharge port 32.

At the base end of the tap water channel 33,
Insert portion 35 for fitting into circular hole portion 44 of joint member 40
Further, a screw inlet 36 for screwing the sleeve 50 is provided on the base end side of the purified water flow path 34.

In the opening at the end of the outer tube 12, a fitting portion 4 is provided.
A substantially cylindrical joint member 40 made of a copper alloy is inserted through 1. The outer diameter of the fitting portion 41 is slightly smaller than that of the distal end side of the step portion 42 provided in the outer peripheral direction of the joint member 40, and the outer tube 12 is fitted to a position where the outer tube 12 comes into contact with the step portion 42. Inserted and brazed. In addition, a main communication passage 46 communicating with the main flow path 13 is formed in the joint member 40, and an insertion hole 43 is further formed. The inner tube 11 is inserted into the hole 43 and brazed.

A circular hole portion 44 is provided at the distal end of the joint member 40, and a cylindrical insertion portion 35 provided at the base end side of the water discharge head 30 is fitted therein. Water tightness is ensured by the O-ring 37 fitted on the outer peripheral surface. Further, a circular hole 45 into which the sleeve 50 is inserted is provided on the distal end side of the joint member 40. The circular hole portion 44 is not limited to the joint member side, and may be provided on the water discharge head 30 side, and an insertion portion may be provided on the joint member 40 side and fitted into the water discharge head 30 side. It is preferable to provide the circular hole portion 44 on the joint member 40 side because only the processing on the joint member 40 side is sufficient without any processing.

The sleeve 50 is inserted into the circular hole 45 and screwed into the screw inlet 36 of the water discharge head 30 at the distal end. On the outer peripheral surface of the sleeve 50, a portion in contact with the inner peripheral surface of the circular hole portion 45, and the screw inlet 36
An O-ring 53 for ensuring watertightness is fitted in a portion in contact with the inner peripheral surface above the. Further, an annular groove 54 is provided on the outer periphery of the substantially central portion of the sleeve,
The sleeve 50 and the joint member 40 are fixed by fitting a fixing screw 55 screwed into a screw hole 47 provided in the joint member 40 into the groove 54. The groove 54 does not penetrate through the auxiliary communication passage 52, and the outer peripheral portion of the sleeve 50 is sealed by the O-ring 53 on the upstream and downstream sides of the fixing screw 55. There is no need for

The sleeve 50 is provided with an inner tube insertion hole 51 into which the distal end of the inner tube 11 is inserted, and further has a sub-communication passage 52 communicating with the insertion hole 51.
The auxiliary communication passage 52 is provided at the screw inlet 36 of the water discharge head 30.
And is connected to and connected to a purified water flow path 34 that is open at the back end.

In the water discharge head mounting structure 1 of the double water discharge pipe configured as described above, ordinary tap water is supplied to the water discharge pipe 1.
The water from the main flow path 13 in the outer pipe 12 through the main communication path 46 of the joint member 40 reaches the tap water flow path 33 of the water discharge head 30, and is discharged from the tap water discharge port 31. Further, the purified water purified by the water purifier is supplied from the sub flow path 14 in the inner pipe 11 of the water discharge pipe 10 to the sub communication path 52 of the sleeve 50.
The water reaches the water purification channel 34 of the water discharge head 30 through the water discharge head 32 and is discharged from the water purification outlet 32.

Attaching structure 1 of the water discharge head of this double water discharge pipe
Is configured as described above, in connecting the water discharge pipe 10 provided with the inner pipe 11 in the outer pipe 12 to the water discharge head 30 that can selectively discharge tap water or purified water, The water discharge pipe 10 and the water discharge head 30 made of copper alloy can be easily and reliably attached without changing the shapes. Further, when the inner pipe is not connected to the water discharge head 30, the inner pipe in the floating state can be easily and reliably fixed.

The joint member 40 is also made of a metal such as a copper alloy.
0 and the joint member 40 can be easily and reliably sealed and connected. Furthermore, the sleeve 50 is firmly attached to the water discharge head 30 made of resin by screwing or the like. On the other hand, since the joint member 40 can be firmly attached and fixed by the fixing screw 55 or the like, the water discharge pipe 10, the joint member 40, the sleeve 50, and the water discharge head 30 can be firmly fixed integrally.

The above configuration is merely an example, and the present invention is not limited to this. FIG. 2 shows a mounting structure 2 of a water discharge head of a double water discharge pipe according to another embodiment of the present invention of claim 1 and the second embodiment of the present invention. In this embodiment, the sleeve 50 is a water discharge head 60 formed integrally with the water discharge head 30. The description of the parts common to the mounting structure 1 for the water discharge head of the double water discharge pipe according to the above embodiment is omitted.

The water discharge head 60 is provided with an insertion portion 67 inserted and connected to the circular hole 75 of the joint member 70,
The fixing member 7 is inserted into the fixing hole 64 provided in the insertion portion 67.
A fixing screw 55 is screwed through the screw hole 47 provided in the nozzle 0, and the water discharge head 60 and the joint member 70 are fixed via the fixing screw 55. Fixing screw 55
On the downstream side, the water discharging head 6
Since O is integrally formed, the O-ring 53 is fitted on the outer periphery of the insertion portion 67 only on the upstream side of the fixing screw 55, and the seal is secured. Circular hole 44 and circular hole 7
5 is provided not only on the joint member side but also on the water discharge head 60 side similarly to the first embodiment described above, and an insertion portion may be provided on the joint member 70 side and inserted into the water discharge head 60 side. It is preferable, but it is preferable to provide the circular holes 44 and 75 on the joint member 70 side since processing on the joint member 70 side is sufficient without processing on the water discharge head 60 side.

Mounting structure 2 for the water discharge head of this double water discharge pipe
In the above, since the water discharge pipe 10 and the water discharge head 60 can be mounted only by the joint member 70, the mounting can be further simplified while ensuring the mounting reliability. Further, when the inner pipe is not connected to the water discharge head 30, the inner pipe in the floating state can be easily and reliably fixed.

Furthermore, the joint member 40 and the sleeve 50 in the first embodiment can be formed integrally with the water discharge head 30. FIG. 3 shows a mounting structure 3 of a water discharge head of a double water discharge pipe according to another embodiment of the present invention. The description of the parts common to the mounting structure 1 or 2 for the water discharge head of the double water discharge pipe is omitted. The fitting portion 81 of the water discharge head 80 is
The inner pipe 11 is fitted into a circular hole 85 provided in the water discharge head 80. An O-ring 86 for securing a seal with the inner periphery of the water discharge pipe 10 is fitted around the outer periphery of the fitting portion 81, and a circular hole 85.
O on the inner circumference of the O to secure a seal with the outer circumference of the inner pipe 11
A ring 87 is fitted. A screw hole 17 provided in the water discharge pipe 10 is inserted into a fixing hole 84 provided in the fitting portion 81.
A fixing screw 55 is screwed so as to penetrate the water discharge head 80 and the water discharge pipe 10 via the fixing screw 55. In this example, the base end portion of the water discharge head 80 is a connecting portion for externally fitting the outer tube 12 of the water discharge tube 10 and inserting the inner tube 11.

Mounting structure 3 for the water discharge head of this double water discharge pipe
Since the water discharge head 80 can be mounted on the water discharge pipe 10 without the need for a joint member, the mounting can be further simplified while ensuring the reliability of the mounting. Also,
The inner pipe in the floating state when not connected to the water discharge head 30 can be easily and reliably fixed.

The present embodiment is also applicable to other faucets, and instead of purified water, alkaline ionized water and other liquids are circulated through the inner tube 11 to discharge water from the water discharge heads 30, 60, 80.
May be discharged.

[0028]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the present invention, it is possible to provide a structure for mounting the water discharge head of the double water discharge pipe, which can be easily and reliably mounted on the double water discharge pipe. Further, the inner tube in the floating state can be easily and reliably fixed to the water discharge head side. According to the second aspect of the present invention, in addition to the above-described effects, the conventional water discharge head can be replaced with a conventional water discharge head simply by changing the fitting shape of the joint member on the water discharge head side without changing the shape of the double water discharge pipe. Can be attached. According to the third aspect of the present invention, in addition to the effect of the first aspect described above, it is possible to reduce the shape of the double water discharge pipe by simply changing the insertion shape of the joint member on the water discharge head side. Can be attached.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a structure for mounting a water discharge head of a double water discharge pipe according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a mounting structure of a water discharge head of a double water discharge pipe according to another embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a mounting structure of a water discharge head of a double water discharge pipe according to another embodiment of the present invention.

[Explanation of symbols]

1, 2, 3; mounting structure of water discharge head of double water discharge pipe, 1
0; water discharge pipe, 11; inner pipe, 12; outer pipe, 13; main flow path,
14; sub flow path, 17; screw hole, 30; water discharge head, 3
1; tap water discharge port, 32; purified water discharge port, 33; tap water flow path, 34; purified water flow path, 35; insertion section, 36; screw inlet, 3
7; O-ring, 40; joint member, 41;
Step, 43; insertion hole, 44; circular hole, 45; circular hole, 4
6; main communication passage, 47; screw hole, 50; sleeve, 51;
Inner tube insertion hole, 52; sub-communication passage, 53; O-ring, 54;
Groove, 55; fixing screw, 60; water discharge head, 61; fitting portion, 62; step, 64; fixing hole, 65; circular hole, 67;
Insertion part, 70; Joint member, 75; Circular hole part, 80; Water discharge head, 81; Fitting insertion part, 82; Step part, 84;
5; circular holes, 86, 87; O-ring.

Claims (3)

[Claims] A main discharge port communicating with the main flow path is provided at a distal end of a double water discharge pipe having an outer pipe forming a main flow path and an inner pipe provided in the outer pipe and forming a sub flow path. A water discharge head mounting structure of a double water discharge pipe for mounting a water discharge head having a sub discharge port communicating with a sub flow path, wherein the main water discharge head is connected to the main discharge port opened at an end face on the double water discharge pipe side. A communication passage and a sub-communication passage communicating with the sub-discharge port, wherein the inner pipe is inserted and connected to the sub-communication passage, and the outer pipe is externally fitted to the outer peripheral portion. A double water discharge head mounting structure, wherein a heavy water discharge pipe and a water discharge head are connected. 2. The connection part is a separate joint member fixed to the end of the double water discharge pipe, and a main discharge passage provided in the water discharge head in communication with a main communication passage of the joint member and a main discharge port. The outlet-side flow path and the sub-discharge path provided in the water discharge head in communication with the sub-discharge port and the sub-discharge path are connected and connected to each other. The mounting structure of the water discharge head of the double water discharge pipe according to claim 1, wherein: 3. A sleeve formed separately from the water discharge head and inserted and connected to the sub-communication passage of the joint member is fixed to the sub-discharge port side flow path of the water discharge head.
The mounting structure of the water discharge head of the double water discharge pipe described in the above item.