JP2003261967A - Diversion pipe joint and pipe joint used by pairing up therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a diversion pipe joint which is interposed between a pipe and a faucet, wherein the diversion pipe joint facilitates arrangement thereof not only in the case where screws of the pipe and the faucet are of the same type but also in the case where the screws are of different types, and wherein the diversion pipe allows its branch port to be always located at a constant location. <P>SOLUTION: The diversion pipe joint 3A comprises a pipe joint body 31, a rotating member 32 equipped with a branch port 321, a first end member 33 having a second male screw (of a first type) 331 and a third male screw (of a second type) 332, and a second end member 34 having a second female screw (of the first type) 341 and a third female screw (of the second type) 342. The first end member 33 and the second end member 34 are changeable with respect to their connecting directions toward the pipe joint body 31 depending on the type of a first female screw 11 and the type of a first male screw 21. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water distribution pipe joint for branching a water supply pipe or a hot water supply pipe before a mixed faucet or a single faucet, and a pipe for connecting to the mixed faucet. The present invention relates to a pipe joint used as a pair with a pipe joint.

[0002]

2. Description of the Related Art For example, when a table-top dishwasher is installed on a sink, a pipe joint called a normal crank (hereinafter referred to as a "crank") is attached to the tip of a water supply pipe passing through the back of the wall and penetrating the wall. ) And a water inlet at the rear end of the existing mixing faucet, a pipe joint for water diversion having a branch port is interposed, and piping is installed so that water can be supplied to the dishwasher through the branch pipe. . At the rear end of the water distribution pipe joint, there is provided a male screw that fits into the female screw provided at the front end connection port of the crank, and at the front end of the water distribution pipe joint, there is a mixture faucet A female screw that fits with a male screw provided on the water inlet is provided. Further, between the crank on the side of the hot water supply pipe and the hot water inlet of the mixed faucet, a pipe joint having the same structure as the pipe joint for water distribution is interposed except for the branch port.

By the way, depending on the manufacturer, the following two types of screws coexist as the screws used for connecting the crank and the mixing faucet. First, the first type of screw is J
It is one of the parallel pipe threads defined in ISB0202 and is called "G3 / 4". This G3 / 4
The screw has an outer diameter of 26.441 mm and 14 threads. On the other hand, the second type of screw is one of the wit screws that have been used for a long time and has an outer diameter of 28 m.
m, and the number of threads is 18, which is referred to as "W28 thread 18".

Therefore, the water diversion pipe joint and the pipe joint used in a pair with the water diversion pipe joint have a G3 / 4 screw and a W28 thread 18 screw so as to correspond to the screw of the mixing faucet and the crank. However, it was necessary to manufacture two types of products, which was wasteful in terms of cost, and inventory management was complicated. Further, the plumbing contractor also usually needs to bring the above-mentioned two types of water diversion pipe joints and pipe joints to the construction site and use one of them that corresponds to the existing mixed faucet and crank screw. It was troublesome.

A branch socket disclosed in Japanese Patent No. 3015359 is known as a solution to the above problems. As shown in FIG. 7, the branch socket includes a nipple body (91) having a peripheral wall provided with a branch plug joint (91a) (branch opening) protruding outward, and a second nut (92).
It consists of and. At the rear end of the nipple body (91), W
28 threads 18 male screws (911) are provided, and at the front end,
A G3 / 4 female screw (912) (union nut) is provided. Also, at the rear end of the second nut (92), G3 /
No. 4 male screw (921) is provided, and a male screw (922) of W28 crest 18 is provided at the front end portion thereof.

Then, the female screw (1
1) and the male screw (21) of the water inlet (21) of the mixed faucet (F) is W
In the case of 28 peaks 18, the branch socket (9) is shown in FIG.
As shown in (a), the male screw (921) of the second nut (92) is screwed into the female screw (912) of the nipple body (91), that is, the W28 thread is formed at the rear end of the branch socket (9). 18 male screws (911)
And the female screw of the W28 thread 18 (92
2) is arranged, and the water supply pipe side crank (C1) and mixed faucet
It is fixed by being interposed between the water inlet (2A) of (F).

On the other hand, when the screws (11) (21) of the water inlet side crank (C1) and the water inlet (2A) of the mixed water faucet (F) are G3 / 4, the branch socket (9) is As shown in 7 (b),
A form in which the female screw (922) of the second nut (92) is screwed into the male screw (911) of the nipple body (91), that is, the G3 / 4 male screw (921) at the rear end of the branch socket (9). And a G3 / 4 female screw (912) at the front end, between the water pipe side crank (C1) and the water inlet (2A) of the mixed tap (F). Fixed by interposition.

[0008]

By the way, when installing a dishwasher, an existing mixing faucet may be replaced with a new mixing faucet. In this case, since it is extremely troublesome to remove the crank from the water supply pipe and the hot water supply pipe and replace it with a new one, the crank is normally used as it is. Therefore, when the screws of the existing crank and the new mixed faucet do not match, that is, for example, the female screw on the crank side is the W28 thread 18, and the male screw on the mixed faucet side is G3.
A case of / 4 can occur. However, in the branch socket (9) shown in FIG. 7, when the type of screw of the existing crank and the new mixed faucet is different as described above, the crank has a screw that matches the screw of the new mixed faucet. It could not be used unless replaced with another.

Further, in the case of the above branch socket (9), a form corresponding to the screw of the W28 crest 18 as shown in FIG. 7 (a) and a G3 / 4 screw as shown in FIG. 7 (b) are used. A considerable deviation occurs in the position of the branch opening (91a) depending on the form to be matched. The branch port (91a) is preferably located as close to the wall as possible in terms of piping of the branch pipe. However, in the configuration of FIG. 7 (b), the branch port (91a) comes to a position far away from the wall, so the branch pipe connected to the branch port (91a) also moves away from the wall, and the branch pipe is It's hard to fix and it doesn't look good.

The present invention has been made in view of the above problems, and it is a water distribution pipe interposed between the front end of a water supply / hot water supply pipe and a faucet such as a mixed faucet or a single faucet. In a joint and a pipe joint used in a pair with the joint, when the screw on the piping side and the tap side is of the first type, and the second type
Not only in the case of one type, but also in the case of one type of the first type and the other type of the second type, the position of the branch port of the water diversion pipe joint is always constant. The purpose is to be

[0011]

Means for Solving the Problems and Effects of the Invention According to the first water diversion pipe joint of the present invention, there is provided a first female screw connection port at the front end of the water supply pipe and a first male screw water at the rear end of the mixing faucet. It is interposed between the inlet and at least one of the first female screw connection port at the front end of the hot water supply pipe and the first male screw hot water inlet at the rear end of the mixing faucet, or A water diversion pipe joint interposed between a connection port with a first female screw at the front end of the water supply pipe and a water inlet port with a first male screw at the rear end of the single faucet, wherein the first female screw is provided at both front and rear ends. A substantially tubular pipe joint body provided with a projecting opening having a small-diameter male screw having a diameter smaller than that of the first male screw, and at least one communication hole provided in a peripheral wall, and an outer periphery of the pipe joint body. A branch port that is rotatably provided and that communicates with the inside of the pipe joint body through the communication hole on the peripheral wall projects outward. A rotating member provided in Jo,
A second male screw of the first type is provided on approximately one half of the front and rear of the outer circumference, and a third male screw of the second type is provided on the other half of the same, and at the inner circumference, A substantially annular first end member having a small-diameter female thread to be screwed into a small-diameter male thread of the rear projecting opening of the pipe joint body from one end of the front and rear ends, and either one of the front and rear ends of the inner circumference. Has a second female screw of the first type on the part, has a third female screw of the second type on the other end, and at the middle of the length of the inner circumference, one of the front and rear ends And a substantially annular second end member having a small diameter female thread to be screwed into the small diameter male thread of the front projection port of the pipe joint body from one end of the first end member,
When the first female screw is of the first type, the second male screw is connected to the pipe joint body so as to be located at the rear end of the pipe joint, and the first female screw is of the second type in case of,
The third male screw is connected to the pipe joint body so that it is located at the rear end of the pipe joint, and the second end member has a second female screw when the first male screw is of the first type. It is connected to the pipe joint body so as to be located at the front end of the joint, and when the first male screw is of the second type, its third female screw is connected to the pipe joint body so as to be located at the front end of the pipe joint. It is a pipe joint for water diversion.

In the above description, for example, the "first type" refers to the parallel pipe thread G3 / 4, and the "second type" refers to the W28 thread 18 of the wit screw.

In the above water distribution pipe joint, when the first female screw on the water supply pipe / hot water supply pipe side and the first male screw on the mixed water faucet / single water faucet side are both of the first type Connects the first end member to the pipe joint body so that the second male screw of the first type is located at the rear end of the pipe joint, and
The end member may be connected to the pipe joint main body so that the second female screw of the first type is located at the pipe joint front end. When the first female screw on the water supply pipe / hot water supply pipe side and the first male screw on the mixed water faucet / single faucet side are both of the second type, the first end member is So that the third male screw is located at the rear end of the pipe joint, and the second end member is connected to the main body of the pipe joint so that the third female screw of the second type is located at the front end of the pipe joint. It may be connected to the pipe joint body. Furthermore, for example, the first on the water supply pipe / hot water supply pipe side
When the female screw is of the first type and the first male screw of the mixed faucet / single faucet side is of the second type, the first end member is the second male screw of the first type. Is connected to the pipe joint main body so that is located at the pipe joint rear end, and the second end member is connected to the pipe joint main body so that the third female screw of the second type is located at the pipe joint front end. do it. As described above, according to the first water diversion pipe joint of the present invention,
When the first female screw on the hot water supply pipe side and the first male screw on the mixed faucet / single faucet side are of the first type, when both are of the second type, and one of them is the first Of the first type and the other of the second type
It is possible to easily cope with this by simply changing the direction of connection of the second end member to the pipe joint body.

In any of the above cases, the first water diversion pipe joint according to the present invention has a pipe joint main body located between the first end member and the second end member and the outer periphery thereof. The position of the rotating member provided is constant, and thus the position of the branch opening provided in the rotating member is constant. Therefore, according to the first water diversion pipe joint of the present invention, it is possible to always pipe the branch pipe connected to the branch port thereof along the wall.

Further, in the first water diversion pipe joint according to the present invention, since the turning member rotatably provided on the outer periphery of the pipe joint body is provided with the branch port, the pipe joint is provided. After the installation, the direction of the branch can be changed freely, and there is no need for troublesome positioning during the installation.

In the first water diversion pipe joint according to the present invention, one of the second male screw and the third male screw of the first end member, which is arranged on the pipe joint body side, is provided on the rear end surface of the pipe joint body. There is preferably provided an annular recess that can be received.

If the annular recessed portion as described above is provided on the rear end surface of the pipe joint body, the total length of the water diversion pipe joint after construction, and thus the length of protrusion from the wall of the mixed faucet or the single faucet, can be improved. It can be held down and the mixed faucet etc. does not get in the way.

Further, in the first water diversion pipe joint according to the present invention, the front portion of the peripheral wall of the pipe joint body is the second end member of the second end member.
Of the female screw and the third female screw, the small diameter portion that can fit inside the one arranged on the pipe joint body side is formed,
A rear portion of the same peripheral wall is formed as a large-diameter portion having an outer diameter substantially equal to the outer diameter of the second end member, and the rotating member is rotated across the large-diameter portion of the pipe joint body and the second end member. It is preferably movably fitted.

Also with the above construction, it is possible to suppress the total length of the water distribution pipe joint after construction, and hence the protruding length from the wall of the mixed faucet or the single faucet, and the mixed faucet or the like is not an obstacle.

A second water diversion pipe joint according to the present invention comprises a first female-threaded connection opening at the front end of the water supply pipe and a first connection end at the rear end of the mixing faucet.
Between the water inlet with a male screw and the front end of the hot water supply pipe
It is interposed between at least one of the female screw connection port and the first male screw hot water inlet port at the rear end of the mixed water faucet, or a single female screw connection port at the front end of the water supply pipe. A water diversion pipe joint interposed between a water introduction port with a first male screw at a rear end of a water faucet, and having a diameter smaller than that of a first female screw and a first male screw at both front and rear ends. The pipe joint body is provided with a projecting port having a screw, and a branch port is provided on the peripheral wall so as to project outward, and a first type is provided in approximately one half of either the front or rear of the outer periphery. A second male screw is provided, and a third male screw of the second type is provided on substantially the other half of the same, and a rear projecting opening of the pipe joint body is formed on the inner circumference from one of the required front and rear ends. A substantially annular first end member having a small-diameter female thread to be fitted to the small-diameter male thread, and one of the front and rear ends of the inner circumference. It has a second female screw of one type, a third female screw of the second type at the other end, and a required one of the front and rear ends at the middle part of the inner circumference. A substantially annular second end member having a small-diameter female screw that is screw-fitted from the end to a small-diameter male screw of the front projecting opening of the pipe fitting body, and the first end member has a first female screw The second male screw is connected to the pipe joint body so as to be located at the rear end of the pipe joint, and the first female screw is the third type when the second female screw is of the second type. The male screw is connected to the pipe joint main body so as to be located at the rear end of the pipe joint, and the second end member has the second female screw at the front end of the pipe joint when the first male screw is of the first type. If the first male screw is of the second type, the third female screw is connected to the pipe joint body so that It is connected to the pipe joint body to be positioned, a diversion pipe fittings.

According to the second water diversion pipe joint of the present invention, similar to the first water diversion pipe joint, the first and second water diversion pipe joints are provided.
When the first female screw on the water supply pipe / hot water supply pipe side and the first male screw on the mixed water faucet / single water faucet side are of the first type only by changing the connection direction of the end member to the pipe joint body. , Both are second
It is possible to easily cope with both the case of the first type and the case of the other of the two types.

In any of the above cases, in the second water diversion pipe joint according to the present invention, the position of the pipe joint main body located between the first end member and the second end member Is constant, and thus the position of the branch port provided in the pipe joint body is constant. Therefore, according to the above-mentioned water pipe joint, it becomes possible to always pipe the branch pipe connected to the branch port along the wall.

In the second water diversion pipe joint according to the present invention, one of the second male screw and the third male screw of the first end member, which is arranged on the pipe joint body side, is arranged on the rear end surface of the pipe joint body. There is preferably provided an annular recess that can be received.

If the annular recessed portion as described above is provided on the rear end surface of the pipe joint body, the total length of the water diversion pipe joint after construction, and by extension, the protruding length from the wall of the mixed faucet or the single faucet can be determined. It can be held down and the mixed faucet etc. does not get in the way.

Further, in the second water diversion pipe joint according to the present invention, the front part of the peripheral wall of the pipe joint body is the second end member of the second end member.
Of the female screw and the third female screw, the small diameter portion that can fit inside the one arranged on the pipe joint body side is formed,
It is preferable that the rear portion of the peripheral wall is a large-diameter portion having an outer diameter substantially equal to the outer diameter of the second end member.

Also with the above construction, it is possible to suppress the total length of the water diversion pipe joint after installation, and hence the protruding length from the wall of the mixed faucet or the single faucet, and the mixed faucet or the like does not become an obstacle.

The pipe joint according to the present invention has a first female threaded connection port at the front end of the water supply pipe and a first male threaded water introduction port at the rear end of the mixing faucet, and a first female thread at the front end of the hot water supply pipe. When the first or second water diversion pipe joint according to the present invention is interposed between any one of the connection port and the first male screw hot water introduction port at the rear end of the mixed faucet, the other A pipe joint interposed between the front and rear ends, the joint main body having a substantially tubular pipe provided with projecting openings having small-diameter male threads smaller in diameter than the first female screw and the first male screw, It has a second male screw of the first type on approximately one half of the front and back of the outer circumference,
A third male screw of the second type is provided on approximately the other half of the same, and it is screwed on the inner circumference from a desired one of the front and rear ends to a small diameter male screw of the rear protruding port of the pipe joint body. A substantially annular first end member having a small diameter female screw, a second female screw of the first type at one of the front and rear ends of the inner circumference, and a second female screw at the other end. A small-diameter female screw that has a third female screw of various types and that is fitted to the small-diameter male screw of the front projection port of the pipe joint body from the desired one of the front and rear ends at the middle portion of the inner circumference. And a substantially annular second end member having a first annular member having a second male screw located at the rear end of the pipe joint when the first female screw is of the first type. If the first female screw is of the second type, the third male screw is located at the rear end of the pipe joint. It is connected to the pipe joint body as the second
If the first male screw is of the first type, the end member is
The second female screw is connected to the pipe joint main body so as to be located at the pipe joint front end, and when the first male screw is of the second type, the third female screw is located at the pipe joint front end. Is a pipe joint that is connected to the pipe joint body.

According to the pipe joint of the present invention, like the first and second water diversion pipe joints of the present invention, it is only necessary to change the direction of connection of the first and second end members to the pipe joint body. , When the first female screw on the water supply pipe / hot water supply pipe side and the first male screw on the mixed water faucet / single water faucet side are of the first type, when both are of the second type, and of both It is possible to easily cope with the case where one is of the first type and the other is of the second type.

In the pipe joint according to the present invention, similarly to the first and second water diversion pipe joints according to the present invention, the second male screw and the first male screw of the first end member are provided on the rear end surface of the pipe joint body. It is preferable that an annular recessed portion capable of accommodating one of the three male screws arranged on the pipe joint body side is provided.

Further, in the pipe joint according to the present invention, substantially the same as the first and second water diversion pipe joints according to the present invention,
The front portion of the peripheral wall of the pipe joint main body is a small diameter portion that can be accommodated inside the one of the second female screw and the third female screw of the second end member that is arranged on the pipe joint main body side. The rear portion of the peripheral wall is preferably a large-diameter portion having an outer diameter substantially equal to the outer diameter of the second end member.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a preferred embodiment of the present invention will be described with reference to FIGS. In the following description, “rear” means the top of FIGS. 1, 2, 4 and 6, and “front” means the bottom of FIGS.

1 to 5 show a first embodiment of the present invention. In FIG. 1, after the cranks (C1) (C2) are inserted through the through holes formed in the wall (W) at the upper ends of the water supply pipe (P1) and the hot water supply pipe (P2) buried in the wall (W). The ends are designed to be connected. At the front ends of the cranks (C1) (C2) on both sides, that is, the front end of the water supply pipe and the front end of the hot water supply pipe, the first female screw
Connection ports (1A) and (1B) with (11) are provided. The connection port (1
A) and (1B) are composed of rotatable nuts.

The mixing faucet (F) shown in FIG. 1 is of a two-valve type. On the right side of the rear face of the faucet body (F1) of the mixed faucet (F), a water introduction port (2A) with a first male screw (21) is provided in a projecting rearward direction, and on the left side thereof, a first male screw (21) The hot water inlet (2B) is provided so as to project rearward. In addition, mixed faucet
Of course, (F) may be a single lever type or a thermostat type.

Then, between the crank (C1) on the side of the water supply pipe and the water inlet (2A) of the mixing faucet (F), the first according to the present invention is provided.
The water diversion pipe joint (3A) is interposed. This diversion pipe fitting (3
Water is supplied to, for example, a dishwasher (not shown) installed in a sink through a branch pipe (P3) connected to A). Further, the pipe joint (3B) of the present invention is interposed between the crank (C2) on the hot water supply pipe side and the hot water inlet (2B) of the mixed water faucet (F).

2 and 3 show in detail the pipe joint (3A) for water distribution. The water distribution pipe joint (3A) includes a pipe joint body (31), a rotating member (32), a first end member (33), and a second pipe.
And an end member (34).

The pipe joint body (31) has a substantially tubular shape.
Projecting ports (311) having small diameter male threads (312) smaller in diameter than the first female thread (11) and the first male thread (21) are provided at the front and rear ends of the pipe joint body (31). ing. Fitting body (31)
A plurality of communication holes (313) are provided in the peripheral wall of the. The small-diameter male screw (312) of the front-rear protrusion port (311) may be of the same type or of different types. In this embodiment, the small-diameter male screw (312) of the rear projecting opening (311) is provided with JISB02.
It consists of 07 (metric fine thread) M12 x 1 screw,
The male screw (312) with a small diameter on the front protrusion (311) is
It consists of M15 x 1 screw (metric fine screw).

The rotating member (32) has a substantially cylindrical shape,
It is rotatably provided on the outer periphery of the pipe joint body (31). A branch wall (321) communicating with the inside of the pipe joint body (31) through the communication hole (313) is provided on the peripheral wall of the rotating member (32) so as to project outward.

The first end member (33) is an annular member. The first end member (33) has a second male screw (331) of the first type, that is, a G3 / 4 screw, in approximately one half of either the front or rear of the outer periphery of the first end member (33). The half has a second type, that is, a third male screw (332) consisting of W28 thread 18 screw. In addition, the first end member (33) has a rear projection opening on the inner periphery of the pipe joint body (31) from a desired one of the front and rear ends.
(311) small diameter male screw (312) small diameter female screw (3
33) (M12 x 1 screw).

The second end member (34) is also an annular member. Second
The end member (34) has one of the front and rear ends of its inner periphery,
Second female screw (341) of the first type (G3 / 4 screw)
And a third female screw (342) of the second type (W28 thread 18 screw) at the other end, and at the same length middle part, one of the front and rear ends required. Has a small-diameter female screw (343) (M15 × 1 screw) which is screwed into the small-diameter male screw (312) of the front protruding port (311) of the pipe joint body (31).

The first end member is provided on the rear end surface of the pipe joint body (31).
An annular recess (3) capable of accommodating one of the second male screw (341) and the third male screw (342) of (33), which is arranged on the pipe joint body (31) side.
14) is provided. The rear protrusion port (311) is provided at the center of the annular recess (314). An annular step (311a) is provided in the middle of the length of the rear projecting opening (311). The small-diameter male screw (312) is formed in a portion of the rear protrusion port (311) rearward of the annular step (311a).

The front part of the peripheral wall of the pipe joint body (31) is arranged on the pipe joint body (31) side of the second female screw (341) and the third female screw (342) of the second end member (34). The small diameter portion (315) that can be accommodated in the inner side is formed, and the rear portion of the peripheral wall has a large diameter portion (3) having an outer diameter substantially equal to the outer diameter of the second end member (34).
16) The rotating member (32) is rotatably fitted over the large diameter portion (316) of the pipe joint body (31) and the second end member (34). An annular flange (317) is integrally provided at the rear end of the outer peripheral surface of the large diameter portion (316). Further, an annular flange (344) is also integrally provided at the center of the length of the outer peripheral surface of the second end member (34). By these flanges (317) and (344), the movement of the rotating member (32) in the front-rear direction is restricted. These flanges (317) (344) are provided with two diametrically symmetrical positions so that the pipe joint body (31) and the second end member (34) can be fastened by a rotating tool such as a wrench. Vertical chamfer (3
17a) and (344a) are formed (see FIG. 3). Rotating member (3
2), the large diameter portion (316) of the pipe joint body (31) and the second end member
O-rings (4) are respectively interposed between (34). These O-rings (4) prevent the rotating member (32) from rotating only by its own weight.
On the outer periphery of the pipe joint body (31), an annular space (S) is provided between the large diameter part (316) and the second end member (34). A communication hole (313) is opened. Therefore, the inside of the pipe joint body (31) and the inside of the branch opening (321) of the rotating member (32) are provided with a communication hole (313) and an annular space (S).
Are communicated with each other via.

The branch port (321) of the rotating member (32) has the same (3
It is formed integrally with the other parts of 2). Of course, it is of course possible to form the branch opening (321) of the rotating member (32) and the other portion as separate bodies, and join and integrate these by welding or the like. A check valve (5) is provided in the tip of the branch port (321).
Are accommodated (see FIG. 3). Branch ((3
21) is provided with a male screw (321a) at its tip.
A nut (61) provided at the base end of the water diversion cock (6) can be screwed into 1a). The branch pipe (P3) can be detachably connected by inserting the plug (P30) attached to the base end of the branch pipe (P30) into the socket (62) provided at the tip of the water dividing cock (6). ing.

On the inner peripheral surface of the first end member (33), annular steps (334) are provided at two positions near both ends thereof. The small diameter female screw (333) is formed in a portion between these annular steps (334). A packing (7) is provided between the annular step (311a) of the rear projecting opening (311) of the pipe joint body (31) and the one annular step (334) of the first end member (33) facing this. Intervened. The second male screw (331) and the third male screw (332) of the first end member (33) have a first end member formed by a rotating tool such as a wrench.
Two vertical chamfers (331a) and (332a) are formed at symmetrical positions in the diametrical direction so that (33) can be tightened (see FIG. 3).

On the inner peripheral surface of the second end member (34), annular steps (345) are respectively provided at positions ⅓ of the length of the member (34) from both ends thereof. A small diameter female screw (343) is formed in a portion located between these annular steps (345), and a second female screw (341) and a third female screw (342) are formed on both side portions thereof. . A peripheral portion of the front protruding portion (311) on the front end surface of the pipe joint body (31) and a second end member facing the peripheral portion.
The packing (8) is interposed between the one annular step (345) of the (34).

The diversion pipe fitting (3A) described above is provided with a first female screw (1
It is used in the following forms depending on the type of 1) and the first male screw (21).

First, the connection port (1) of the crank (C1) on the water supply pipe side
The first female screw (11) provided on A) and the first male screw (21) provided on the water inlet (2A) of the mixing faucet (F) are both the first
2), that is, a G3 / 4 screw, the water distribution pipe joint (3A) has a form as shown in FIG. 2 (a). That is,
The diameter of the rear projection port (311) of the pipe joint body (31) is small so that the second male screw (G3 / 4) (331) of the first end member (33) is located at the rear end of the pipe joint (3A). The small diameter female screw (333) of the first end member (33) is screwed into the male screw (312) from the required one end side.
Also, the second female screw (G3 / 4) (341) of the second end member (34)
Is located at the front end of the pipe joint (3A), the small diameter male screw (312) of the front protrusion port (311) of the pipe joint body (31) is attached to the small diameter female screw (343) of the second end member (34). ) Is screwed from the required one end side. Then, the second male screw (331) is screwed into the first female screw (11), and the second female screw (341) is screwed into the first male screw (21), whereby the water distribution pipe joint (3A ) Is interposed and fixed between the connection port (1A) at the front end of the water supply pipe and the water introduction port (2A) of the mixed water faucet (F). After that, the turning member (32) of the water diversion pipe joint (3A) is turned in the required direction by the required angle, and the branch port (321).
It is only necessary to adjust the direction of and to connect the branch pipe (P3) to the branch port (321) via the water dividing cock (6).

Next, the first female screw (11) and the first male screw (21)
However, when both are of the second type, that is, they are composed of W28 thread 18 screws, the water distribution pipe joint (3A) has a form as shown in FIG. 2 (b). That is, the third male screw (33) of the first end member (33)
2) Make sure that the (W28 crest 18) is located at the rear end of the pipe joint (3A), and the small diameter male screw (312) of the rear projection opening (311) of the pipe joint body (31)
The small diameter female screw (333) of the first end member (33) is screwed from the required other end side. In addition, the diameter of the front protruding port (311) of the pipe joint body (31) is adjusted so that the third female screw (342) (W28 crest 18) of the second end member (34) is located at the front end of the pipe joint (3A). The small diameter female screw (333) of the second end member (34) is attached to the small male screw (312).
It is screwed from the required other end side. Then, the third male screw (332) is screwed into the first female screw (11),
By screwing (342) into the first male screw (21),
A water distribution pipe joint (3A) is interposed and fixed between the connection port (1A) at the front end of the water supply pipe and the water introduction port (2A) of the mixed water faucet (F).

Although not shown, for example, the first female screw (11) is of the first type (G3 / 4 screw),
When the female screw (11) is of the second type (W28 thread 18 screw), the water distribution pipe joint (3A) has the following form. That is, the second male screw (331) of the first end member (33) (G3 /
4) so that the pipe joint (3A) is located at the rear end of the pipe joint body (3A).
1) Insert the small male screw (312) of the rear protrusion (311) into the first end member (3
The small-diameter female screw (333) of 3) is screwed from the required one end side. Also, the third female screw (342) of the second end member (34)
(W28 crest 18) so that it is located at the front end of the pipe joint (3A),
To the small diameter male screw (312) of the front protruding port (311) of the fitting body (31),
The small-diameter female screw (343) of the second end member (34) is screw-fitted from the required other end side. Then, the second male screw (331) is screwed into the first female screw (11), and the third female screw (342) is screwed into the first male screw (21), whereby the water distribution pipe joint (3
A) is interposed and fixed between the connection port (1A) at the front end of the water supply pipe and the water introduction port (2A) of the mixed water faucet (F).

4 and 5 show in detail the pipe joint (3B) used in pair with the pipe joint (3A) for water distribution. This pipe joint (3B) includes a pipe joint body (31B) and a first end member (33).
And a second end member (34).

The pipe joint body (31B) is not provided with a communication hole in its peripheral wall, nor is an annular flange formed at the rear end of the large diameter portion (316). In the large diameter part (316), two vertical chamfered parts (316a) are formed at symmetrical positions in the diametrical direction so that the pipe joint body (31B) can be tightened by a rotating tool such as a wrench. (See Figure 5). Pipe fitting body
The structure other than the above of (31B) is the same as the pipe joint body (31) of the water pipe joint (3A) shown in FIGS. 2 and 3.

Further, the first end member (33) and the second end member (3
4) also has the same structure as the first end member (33) and the second end member (34) of the water distribution pipe joint (3A) shown in FIGS. 2 and 3.

The pipe joint (3B) is used in the following forms depending on the types of the first female screw (11) and the first male screw (21).

First, the first female screw (11) provided at the connection port (1B) at the front end of the hot water supply pipe and the first male screw (21) provided at the hot water introduction port (2B) of the mixed faucet (F). ) Is the first type (G
3/4 screw), the pipe joint (3B) is shown in Fig. 4 (a).
It is made in the form. That is, the first end member (33) is connected to the pipe joint body (31B) such that the second male screw (331) (G3 / 4) of the first end member (33) is located at the rear end of the pipe joint (3B), and The second end member (34) is connected to the pipe joint body (31B) such that the second female screw (341) (G3 / 4) of the second end member is located at the front end of the pipe joint (3B). Then, the second male screw (331) is screwed into the first female screw (11), and the second female screw (341) is inserted into the first male screw (2).
By being screwed into 1), the pipe joint (3B) is interposed and fixed between the connection port (1B) at the front end of the hot water supply pipe and the hot water inlet (2B) of the mixed water faucet (F).

Next, the first female screw (11) and the first male screw (21)
However, when both are of the second type (W28 thread 18 screw), the pipe joint (3B) has a form as shown in FIG. 4 (b). That is, the first end member (33) has its third male screw (332).
(W28 crest 18) so that it is located at the rear end of the pipe joint (3B),
Second end member (34) connected to the pipe joint body (31B)
However, the third female screw (342) (W28 mountain 18) is
B) It is connected to the pipe joint body (31B) so as to be located at the front end. Then, the third male screw (332) is screwed into the first female screw (11), and the third female screw (342) is screwed into the first male screw (21), whereby the pipe joint (3B) is It is fixedly interposed between the connection port (1B) at the front end of the hot water supply pipe and the hot water inlet (2B) of the mixed water faucet (F).

Although not shown, for example, the first female screw (11) is of the first type (G3 / 4 screw),
When the female screw (11) is of the second type (W28 thread 18 screw), the pipe joint (3B) has the following form. That is, the first end member (33) has its second male screw (331).
(G3 / 4) is connected to the pipe joint body (31B) so that it is located at the rear end of the pipe joint (3B), and the second end member (34) has its third female screw (342) (W28). The crest 18) is connected to the pipe joint body (31B) so that it is located at the front end of the pipe joint (3B). Then, the second male screw (331) is screwed into the first female screw (11), and the third female screw (432) is screwed into the first male screw (21), whereby the pipe joint (3B) is It is fixedly interposed between the connection port (1B) at the front end of the hot water supply pipe and the hot water inlet (2B) of the mixed water faucet (F).

FIG. 6 shows a second embodiment of the present invention. FIG. 6 shows a second water diversion pipe joint according to the present invention.
(30A) is shown. The water distribution pipe joint (30A) includes a pipe joint body (301), a first end member (33), and a second end member (34).

The pipe joint body (301) has a substantially tubular shape. At the front and rear ends of the fitting body (301), first female screw (11)
And a small diameter male screw (3
A projecting opening (302) with 03) is provided. Front and rear protrusion
The small diameter male screw (303) of (302) may be of the same type or of different types. On the peripheral wall of the pipe fitting body (301),
A branch port (304) communicating with the inside of the pipe joint body (301) is provided so as to project outward. The branching port (304) of the pipe joint body (301) and the other portion are formed separately, and these are joined and integrated by welding.

The first end member (33) and the second end member (34) are
The water-dividing pipe joint (3
It has the same structure as the first end member (33) and the second end member (34) of A).

On the rear end surface of the pipe joint body (301), one of the second male screw (331) and the third male screw (332) of the first end member (33) is arranged on the pipe joint body (301) side. There is an annular recess (305) that can accommodate one of these. The rear protrusion port (302) is provided at the center of the annular recess (305). Rear protrusion (30
2) An annular step (302a) is formed in the middle of the length. The small diameter male screw (303) is provided with an annular step (302) at the rear protrusion (302).
It is formed on the rear side of a).

The front portion of the peripheral wall of the pipe joint body (301) is arranged on the pipe joint body (301) side of the second female screw (341) and the third female screw (342) of the second end member (34). A small diameter portion (306) that can be accommodated on the inner side of the second end member (3).
The large diameter portion (307) has an outer diameter substantially equal to the outer diameter of 4). The branch port (304) is provided in the front portion of the large diameter portion (307). A check valve (not shown) is housed in the tip of the branch port (304). Branch ((30
A male screw (304a) is provided at the tip of 4).
In a), a nut provided at the base end of the water diversion cock is adapted to be screwed (see FIGS. 1 and 3).

Between the annular step (302a) of the rear projecting opening (302) of the pipe joint body (301) and one annular step (334) of the first end member (33) facing this, a packing ( 7) is interposed. The packing (8) is also provided between the peripheral portion of the front protruding portion (302) on the front end surface of the pipe joint body (301) and one annular step (345) of the second end member (34) facing the front protruding portion (302). Intervened.

The above-mentioned water diversion pipe joint (30A) is the first female screw.
It is used in the following forms depending on the type of (11) and the first male screw (21).

First, the first female screw (11) provided at the connection port (1A) at the front end of the water supply pipe and the first male screw (21) provided at the water introduction port (2A) of the mixed faucet (F). ) Are both of the first type, that is, G3 / 4 threads, the diversion pipe joint (30A)
Has a form as shown in FIG. That is, the first end member (33) is so arranged that the second male screw (331) (G3 / 4) thereof is located at the rear end of the water diversion pipe joint (30A).
And the second end member (34) has a second female screw
(341) (G3 / 4) is connected to the pipe joint body (301) so that it is located at the front end of the water pipe joint (30A). And
The second male screw (331) is screwed into the first female screw (11),
By fitting the female screw (341) onto the first male screw (21), the water distribution pipe joint (30A) is connected to the connection port (1
It is fixed by being interposed between A) and the water inlet (2A) of the mixing faucet (F). At this time, the orientation of the pipe joint body (301) is adjusted so that the branch port (304) faces the required direction. Then the branch
A branch pipe is connected to (304).

Next, the first female screw (11) and the first male screw (21)
However, when both are of the second type (W28 thread 18 screw), the water distribution pipe joint (30A) is configured as shown in FIG. 6 (b). That is, the first end member (33) has its third male screw.
(332) (W28 crest 18) is connected to the pipe joint body (301) so that it is located at the rear end of the pipe joint (30A) for water distribution, and
The end member (34) has the third female screw (342) (W28 crest 18).
Is connected to the pipe joint main body (301) so that it is located at the front end of the water diversion pipe joint (30A). Then, the third male screw (332) is screwed into the first female screw (11), and the third female screw (342) is the first.
Pipe fitting for water diversion by being screwed into the male screw (21)
(30A) is interposed and fixed between the connection port (1A) at the front end of the water supply pipe and the water introduction port (2A) of the mixed water faucet (F).

Although not shown, for example, the first female screw (11) is of the first type (G3 / 4 screw),
When the female screw (11) is of the second type (W28 thread 18 screw), the water distribution pipe joint (30A) has the following form. That is, the first end member (33) has its second male screw (331).
(G3 / 4) is connected to the pipe joint body (301) so that it is located at the rear end of the diversion pipe joint (30A), and the second end member (3
4) is connected to the pipe joint body (301) so that the third female screw (342) (W28 crest 18) is located at the front end of the water pipe joint (30A). Then, the second male screw (331) is screwed into the first female screw (11), and the third female screw (342) is screwed into the first male screw (2).
Pipe fitting for water diversion (30A) by being screwed into 1)
Is fixedly interposed between the connection port (1A) at the front end of the water supply pipe and the water introduction port (2A) of the mixed water faucet (F).

In the above embodiment, the first female screw (11) is provided on the water supply / hot water supply pipe side and the first male screw (21) is provided on the mixed water faucet side. The present invention can also be applied to the case where the first male screw is provided on the water supply / hot water supply pipe side and the first female screw is provided on the mixed water faucet side. In this case, the water diversion pipe fitting and the pipe fitting are
It may be used in a form that is the reverse of the form shown in FIGS.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention,
FIG. 3 is a plan view showing separately the water supply pipe side / hot water supply pipe side crank, the mixed water faucet, and the water distribution pipe joint and pipe joint interposed therebetween.

FIG. 2 shows the water distribution pipe joint of the first embodiment, in which (a) shows an embodiment in which the screws of the crank and the mixing faucet are of the first type (G3 / 4 screw). The horizontal sectional view shown is a horizontal sectional view showing a form in which the screws of the crank and the mixing faucet are of the second type (W28 thread 18 screw).

FIG. 3 is an exploded perspective view of the water distribution pipe joint of the first embodiment.

FIG. 4 shows the pipe joint of the first embodiment,
(A) is a horizontal sectional view showing a form in which the screws of the crank and the mixed faucet are of the first type, and (b) shows a form in which the screws of the crank and the mixed faucet are of the second type. It is a horizontal sectional view.

FIG. 5 is an exploded perspective view of the pipe joint according to the first embodiment.

FIG. 6 shows a water distribution pipe joint of a second embodiment according to the present invention, wherein (a) is a horizontal cross section showing a form in which the screws of the crank and the mixing faucet are of the first type. FIG. 1B is a horizontal cross-sectional view showing a form in which the screws of the crank and the mixing faucet are of the second type.

FIG. 7 shows a conventional pipe joint for water distribution,
(A) Crank and mixed faucet screw W28 thread 18
A horizontal cross-sectional view showing a case of a screw (second type), (b) shows a screw of a crank and a mixing faucet of G3 / 4
It is a horizontal sectional view showing the form in case of being a screw (first kind).

[Explanation of symbols]

(P1) ... Water pipe (P2)… Hot water supply pipe (1A) (1B) ... Connection port (11)… First female screw (F) ... Mixed faucet (2A) ... Water inlet (2B) ... Hot water inlet (21)… First male screw (3A) ... Diversion fitting (31)… Pipe fitting body (311) ... Protrusion (312)… Small diameter male screw (313) ... Communication hole (314)… annular recess (315) ... Small diameter part (316) ... Large diameter part (32) ... Rotating member (321) ... Branch (33) ... First end member (331) ... Second male screw (332) ... Third male screw (333) ... Small female thread (34) ... Second end member (341) ... Second female screw (342)… Third female screw (343)… Female screw with small diameter (3B) ... Fitting (31B) ... Pipe fitting body (30A)… Diversion fitting (301) ... Fitting body (302) ... Protrusion (303)… Small diameter male screw (304) ... Branch (305)… annular recess (306) ... Small diameter part (307) ... Large diameter part

Claims (9)

[Claims] 1. Between the connection port (1A) with the first female screw (11) at the front end of the water supply pipe and the water introduction port (2A) with the first male screw (21) at the rear end of the mixed water faucet (F), And / or at least one of the connection port (1B) with the first female screw (11) at the front end of the hot water supply pipe and the hot water inlet port (1B) with the first male screw (21) at the rear end of the mixed water faucet (F). Water distribution pipe joint (3A) that is interposed on one side or between the connection port with the first female screw at the front end of the water supply pipe and the water introduction port with the first male screw at the rear end of the single faucet In addition, the front and rear ends are provided with a projecting opening (311) having a small-diameter male screw (312) having a diameter smaller than that of the first female screw (11) and the first male screw (21), and at least on the peripheral wall. A substantially tubular pipe joint body (31) provided with one communication hole (313), and the communication hole (313) rotatably provided on the outer periphery of the pipe joint body (31) and on the peripheral wall. The branch port (321) communicating with the pipe joint body (31) via Rotating member being eclipsed
(32) and a second male screw (331) of the first type on approximately one half of either the front or rear of the outer circumference, and a third male screw of the second type on the other approximately half. While having (332), on the inner circumference,
A substantially annular first end having a small-diameter female thread (333) that is screwed into a small-diameter male thread (312) of the rear projecting opening (311) of the pipe joint body (31) from a desired one of the front and rear ends. A member (33) and a second female screw (341) of the first type at one of the front and rear ends of the inner circumference, and a third female screw of the second type at the other end. (342), and the pipe joint body from the desired one of the front and rear ends in the middle part of the inner circumference.
(31) is provided with a substantially annular second end member (34) having a small diameter female thread (343) that is screwed into the small diameter male screw (312) of the front protrusion port (311), and a first end When the first female screw (11) is of the first type, the member (33) is such that its second male screw (331) is located at the rear end of the pipe joint (3A). ), And also the first
When the female screw (11) is of the second type, the third male screw (332) is connected to the pipe joint body (31) so as to be located at the rear end of the pipe joint (3A), and the second end When the first male screw (21) is of the first type, the member (34) is such that its second female screw (341) is located at the front end of the pipe joint (3A). Connected to the first
When the male screw (21) is of the second type, the third female screw (342) is connected to the pipe joint body (31) so that the third female screw (342) is located at the front end of the pipe joint (3A). Pipe fittings. 2. The first end member is provided on the rear end surface of the pipe joint body (31).
An annular recess (3) capable of accommodating one of the second male screw (331) and the third male screw (332) of (33) which is arranged on the pipe joint body (31) side.
The water-division pipe joint according to claim 1, wherein 14) is provided. 3. The pipe joint body (31) side of the second female screw (341) and the third female screw (342) of the second end member (34), the front portion of the peripheral wall of the pipe joint body (31). It is made a small diameter part (315) that can fit inside the one arranged at, and the rear part of the peripheral wall is
Large diameter part having an outer diameter substantially equal to the outer diameter of the second end member (34)
(316), the rotating member (32) is
The water distribution pipe joint according to claim 1 or 2, which is rotatably fitted over the large-diameter portion (316) and the second end member (34) of (1). 4. Between the connection port (1A) with the first female screw (11) at the front end of the water supply pipe and the water introduction port (2A) with the first male screw (21) at the rear end of the mixed water faucet (F), And / or at least one of the connection port (1B) with the first female screw (11) at the front end of the hot water supply pipe and the hot water inlet (2B) with the first male screw (21) at the rear end of the mixed water faucet (F) Water distribution pipe joint (30A) that is interposed on one side or between the connection port with the first female screw at the front end of the water supply pipe and the water inlet port with the first male screw at the rear end of the single faucet In addition, the front and rear ends are provided with a projecting opening (302) having a small-diameter male screw (303) having a diameter smaller than that of the first female screw (11) and the first male screw (21), and is branched on the peripheral wall. A pipe joint body (301) with a mouth (304) protruding outward, and a second male screw (331) of the first type on either the front or rear half of the outer circumference. And a third male screw (332) of the second type is provided on approximately the other half of the same. Together with, on the inner periphery,
A substantially annular first end having a small-diameter female screw (333) that is screwed into a small-diameter male screw (303) of the rear projection opening (302) of the pipe joint body (301) from a desired one of the front and rear ends. A member (33) and a second female screw (341) of the first type at one of the front and rear ends of the inner circumference, and a third female screw of the second type at the other end. (342), and the pipe joint body from the desired one of the front and rear ends in the middle part of the inner circumference.
A substantially annular second end member (34) having a small-diameter female screw (343) screwed into the small-diameter male screw (303) of the front protrusion opening (302) of the (301).
The first end member (33) has a second male screw (331) at the rear end of the pipe joint (30A) when the first female screw (11) is of the first type. Connected to the fitting body (31) so as to be positioned
When the female screw (21) is of the second type, the third male screw (332) is connected to the pipe joint body (31) so that it is located at the rear end of the pipe joint (30A), and the second end When the first male screw (11) is of the first type, the member (34) is such that the second female screw (341) thereof is located at the front end of the pipe joint (30A). If the first male screw (21) is of the second type, the
A pipe joint for water diversion, in which the female screw (342) is connected to the pipe joint body (301) so as to be located at the front end of the pipe joint (30A). 5. The pipe joint body (301) is provided on the rear end face thereof with the second male screw (331) and the third male screw (332) of the first end member (33) on the pipe joint body (301) side. The pipe joint for water diversion according to claim 4, further comprising an annular recess (305) capable of accommodating the other side. 6. The front portion of the peripheral wall of the pipe joint body (301) has a second portion.
Of the second female screw (341) and the third female screw (342) of the end member (34), it is a small diameter portion (306) that can be accommodated inside the one arranged on the pipe joint body (301) side. At the same time, the rear portion of the peripheral wall is formed as a large-diameter portion (307) having an outer diameter substantially equal to the outer diameter of the second end member (34). 7. Between the connection port (1A) with the first female screw (11) at the front end of the water supply pipe and the water introduction port (2A) with the first male screw (21) at the rear end of the mixed water faucet (F), And between the connection port (1B) with the first female screw (11) at the front end of the hot water supply pipe and the hot water inlet port (2B) with the first male screw (21) at the rear end of the mixed faucet (F) A pipe joint (3B) interposed in the water splitting pipe joint according to claim 1 or 4, wherein the pipe joint (3B) is interposed in the other pipe, the first female screw (11) and the first male screw being provided at both front and rear ends. A substantially cylindrical pipe joint body (31B) provided with a projecting port (311) having a small diameter male screw (312) smaller than that of (21), and approximately one half of either the front or rear of the outer circumference. Has a second male screw (331) of the first type, and a third male screw (332) of the second type in the other half of the same, and on the inner circumference,
A substantially annular first end having a small-diameter female thread (333) that is screwed into a small-diameter male thread (312) of the rear projecting opening (311) of the pipe joint body (31B) from the desired one of the front and rear ends. A member (33) and a second female screw (341) of the first type at one of the front and rear ends of the inner circumference, and a third female screw of the second type at the other end. (342), and the pipe joint body from the desired one of the front and rear ends in the middle part of the inner circumference.
A substantially annular second end member (34) having a small-diameter female screw (343) which is screw-fitted into the small-diameter male screw (312) of the front protrusion opening (311) of (31B).
The first end member (33) has a second male screw (331) at the rear end of the pipe joint (3B) when the first female screw (11) is of the first type. If it is connected to the pipe joint body (31B) so as to be positioned, and the first female screw (11) is of the second type, then the third
The male screw (332) is connected to the pipe joint body (31B) so that it is located at the rear end of the pipe joint (3B), and the second end member (34) has the first male screw (21) of the first type. If so, the second female screw (341) is connected to the pipe joint body (31B) so that it is located at the front end of the pipe joint (3B), and the first male screw (21) is more than the second type. If so, the third
A pipe joint in which a female screw (342) is connected to the pipe joint body (31B) so as to be located at the front end of the pipe joint (3B). 8. The rear end surface of the pipe joint body (31B) is arranged on the pipe joint body (31B) side of the second male screw (331) and the third male screw (332) of the first end member (33). 8. The pipe joint according to claim 7, further comprising an annular recess (315) capable of accommodating the other side. 9. The front portion of the peripheral wall of the pipe joint body (31B) has a second portion.
Of the second female screw (341) and the third female screw (342) of the end member (34), it is formed as a small diameter portion (315) that can be accommodated inside the one arranged on the pipe joint body (31B) side. The pipe joint according to claim 7 or 8, wherein the rear portion of the peripheral wall is a large-diameter portion (316) having an outer diameter substantially equal to the outer diameter of the second end member (34).