JP2552796B2 - How to install the 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 method of mounting a water faucet, which is mounted on a branch port formed in a large-diameter fluid pipe such as a water pipe and has excellent earthquake resistance.

[0002]

2. Description of the Related Art A conventional water faucet of this type is shown in FIG. 01 is a water faucet, which is a hollow cylindrical metal fitting with a lower end formed in a large diameter portion 03 with upper and lower openings
02, a rubber ring 04 fitted and mounted on the outer periphery of the tubular fitting 02, a washer 05, and a tightening screwed to an external thread 07 formed on the upper end of the tubular fitting 02. It consists of a nut 06 with a nut. The large-diameter portion 03 is a large-diameter annular flange portion 08, which is formed at the lower end through a step portion 09 and a tapered portion 010. Reference numeral 011 denotes an annular projection formed at the lower end of the rubber ring 04. Reference numeral 012 denotes a branch port formed by drilling a fluid pipe 013. Here, the rubber ring 04 is screwed with a tightening nut 06 to form a hollow cylindrical metal fitting. 02 is pressed.

[0003]

By the way, the conventional water tap 01 and the apparatus to which the tap is attached have the following various problems. (1) The tubular metal fitting 02, the rubber ring 04, etc. inserted into the branch port 012 must be accurately positioned and attached, and the attachment of the water faucet 01 was not easy. (2) Since the outer diameter of the flange portion 08 of the tubular metal fitting 02 is smaller than that of the branch port 012, if the withdrawal force acts on the water faucet 01, the effect of retaining the rubber ring 04 beyond the shearing force cannot be expected. This is the same as when the coil spring is annularly embedded in the rubber ring 04, the spring escapes to the inner surface of the pipe. (3) Since a circular hole is bored in the fluid pipe 013 as the branch port 012, the hole edge on the inner surface of the pipe is not a circle lying on a horizontal plane but a circle formed on a curved surface. There is a difference in height from the periphery. Since the tapered portion 010 and the flange portion 08 of the cylindrical metal fitting 02 are circles on a horizontal plane, even if the rubber ring 04 is pressed against the branch port 012, the compressed state becomes nonuniform, and there is a concern about fluid sealing. In particular, there is a problem near the hole edge in the pipe axis direction. (4) Since the rubber ring 04 is sandwiched between the tightening nut 06, the taper portion 010, and the flange portion 08 via the washer 05, the washer 05 and the outer surface of the pipe are in contact with each other, and it is difficult to bend with respect to a lateral force. (5) When the ground changes due to an earthquake or the like and a large lateral force is applied to the dipstick 01 and tilts, the uneven compression ratio of (2) is further increased, and the compression ratio on one side cannot be maintained. Since the rubber ring 04 is sandwiched between the flange portion 08, the tapered portion 010, and the washer 05, the rubber ring 04 may be damaged if the stopper moves. (6) Cutting chips are generated when the pipe 013 is drilled. This chip is located at the top of the tube, and when the tightening nut 06 is tightened in this state, the chip is caught between the washer 05 and the tube 013. There is no problem with the sealing mechanism in this state, but if the chips that have been trapped move due to vibrations caused by an earthquake or other work, vibrations caused by a vehicle, etc., and fall off from the lower part of the washer 05, only the thickness of the chips The faucet 01 is lowered, the compressed state of the rubber ring 04 is released, and the sealing effect is greatly reduced.

In view of the above, the present invention solves the above-mentioned problems of the prior art, and allows the water diversion plug to be attached to the branch port of the fluid pipe very easily by using the push-in / pull-up member, and the water diversion after the attachment. It is possible to improve the force for preventing separation of the plug from the branch port formed in the fluid pipe, and to eliminate the uneven compression ratio of the rubber ring due to the difference in height of the hole edge of the branch port,
Even if a lateral force is applied, the structure can be softly bent, and even if bent, it can prevent the rubber ring from being damaged and the sealing function not to deteriorate, and even if chips etc. remain on the pipe top, the sealing function is affected. It is an object of the present invention to provide a mounting method of a water faucet that can be avoided.

[0005]

In order to achieve the above object, the method of mounting a water faucet according to the invention of claim 1 has a tapered conical portion having a flat end at the lower end, The conical part has a push-in / pull-up member detachably attached to the flat end of the conical part with a locking member having substantially the same diameter as the outer diameter of the part other than the conical part. The tubular metal fitting pushes and pulls up the metal fitting and the mounting member engaged with the outward annular flange formed on the upper end of the tubular metal fitting on the upper surface of the inward annular flange formed on the lower end of the mounting material. It fits on the outer periphery of the member and is fitted so that the tip opening edge of the conical tube part of the tip opening formed by pressing in advance at the lower end of the tubular metal fitting is locked to the upper surface of the locking member. While supporting it, an outward annular flange is formed at the upper end, A rubber ring having an annular projection at its lower end is fitted and supported so as to abut the outer peripheral surface of the lower end of the tubular metal fitting, and this push-in / pull-up member is drilled from the lower end to the fluid pipe. The rubber ring has an annular flange portion in contact with the outer peripheral surface of the fluid pipe, the annular ring portion of the rubber ring comes in contact with the annular flange portion of the mounting member, and the conical tubular portion is made of rubber. After protruding from the lower end opening of the ring, the push-in / pull-up member is pulled up and the lower end portion of the tubular metal member including the conical cylindrical portion whose front end opening edge is locked to the upper surface of the locking member is connected to the annular projection of the rubber wheel by the fluid. A first annular groove that is in contact with the inner peripheral surface of the pipe and is formed on the inner peripheral surface of the upper end of the conical cylindrical portion, a second annular groove formed on the outer peripheral surface of the tubular metal fitting above the conical cylindrical portion, and a cone. Through a plurality of cutouts circumferentially formed on the tubular part and the tubular metal fitting above it. It is compressed downward and is bent outward so that the upper end of the conical cylinder portion in which the first annular groove is formed becomes a mountain portion, and is expanded, and the outer diameter of the expanded portion is made larger than the diameter of the branch port. It is characterized by

According to a second aspect of the present invention, there is provided a water faucet mounting method, which has a tapered conical portion having a flat end at a lower end thereof, and the locking member is provided on a flat end of the conical portion. A push-in / pull-up member that is detachably attached to the push-out / pull-up member and is formed to have an outer diameter substantially the same as the outer diameter except for the conical portion is formed in the upper large-diameter tubular portion and the lower end portion of the tubular portion. It is composed of an inward annular flange portion and a lower small-diameter cylindrical portion concentrically provided with the upper large-diameter cylindrical portion at the inner end portion of the flange portion, and the diameter decreases downward on the outer periphery of the lower end portion of the lower small-diameter cylindrical portion. Attach the metal fitting and the mounting member with which the outward annular flange portion formed on the upper end portion of the tubular metal fitting is placed and engaged on the upper surface of the annular flange portion of the cylindrical mounting member having the tapered surface or the rounded surface. The inner peripheral surface of the small-diameter tubular part of the member is in sliding contact with the outer peripheral surface of the tubular metal fitting, and the inner peripheral surface of the tubular metal fitting is Enlarged portion formed by previously inflating the outer peripheral surface with a press or the like at the lower end of the cylindrical metal member that is in sliding contact with the outer peripheral surface of the catching / pulling member and protruding from the lower end of the mounting member, and the lower end of the expanded portion The front end opening edge of the narrowed-down portion of the front end opening which is connected to and is fitted and supported so as to be locked to the upper surface of the locking member, and an outer annular flange portion is formed at the upper end portion, and the lower end portion is formed. A rubber ring provided with an annular protrusion is fitted and supported so as to abut the outer peripheral surface of the lower end of the tubular metal fitting, and then the pushing / pulling member is branched from the lower end side into a fluid pipe. Press into the mouth and press fit, the annular flange of the rubber ring contacts the outer peripheral surface of the fluid pipe, the annular flange of the mounting member contacts the upper surface of the annular flange of the rubber ring, and the narrowed portion and the enlarged portion are made of rubber. After protruding from the lower end opening of the ring, The annular projection of the rubber ring contacts the inner peripheral surface of the fluid pipe with the narrowed portion and the enlarged portion of the cylindrical metal fitting whose upper end edge is locked to the upper surface of the locking member by pulling up the catching and pulling member. Compress in the vertical direction through multiple cutouts that are formed in the narrowed portion and the enlarged portion in the circumferential direction, and bend and expand outward so that the connecting portion of the narrowed portion and the enlarged portion becomes a mountain portion. The outer diameter of the expanded portion is larger than the diameter of the branch opening.

According to a third aspect of the invention, there is provided a water faucet mounting method according to the second or third aspect of the invention.
The push-up / pull-up member is detachably attached to the pull-up shaft having a tapered conical portion with a flat end at the lower end and the flat end of the conical portion of the pull-up shaft. It is characterized in that it comprises a locking member having substantially the same diameter as the pull-up shaft, and a push-in shaft attached to the outer periphery of the pull-up shaft.

[0008]

By the above-mentioned method, the water faucet can be attached very easily by being pushed into the branch port of the fluid pipe by the pushing / pulling member and being pulled up. In addition, the attached water faucet has a high sealing performance because the rubber ring is press-fitted into the small-diameter tubular part of the tubular metal fitting or the mounting nut, so that the metal fitting or the small-diameter tubular part and the edge of the branch port are in a tightly fitted state. Own.
Further, since the outer diameter of the bending and expanding portion formed at the lower end portion of the tubular metal piece is larger than the diameter of the branch opening, it is strong against the force of withdrawal from the branch opening.

[0009]

FIG. 1 is a vertical sectional front view showing a water pipe according to an embodiment of the present invention, in which a water tap is attached to a branch port of a fluid pipe. 1
Is a water faucet, a thin-walled hollow cylindrical metal fitting 2 having upper and lower end openings formed in the expanded portion 21 at the lower end, and a rubber ring 4 fitted and attached to the outer periphery of the cylindrical metal fitting 2. And a mounting nut 5 and the like fitted and fitted to the outer periphery of the tubular metal fitting 2 above the rubber ring 4. Reference numeral 6 denotes a ductile pipe as a fluid pipe, which is composed of a main pipe 7 and a cement mortar lining layer 8 lined on the inner surface thereof. Reference numeral 9 denotes a branch port formed in the ductile tube 6. Expanding part of the tubular metal fitting 2
21 is bent outward so that the outer diameter of its tip is larger than that of the branch port 9, and the tip of the expanding portion 21 is located near the inner surface of the pipe 6.

An outer annular flange portion 10 is formed on an upper end portion of the rubber ring 4 projecting from the branch opening 9, and an inward annular protrusion portion 11 is formed on a lower end portion of the rubber ring 4 which faces the inner surface of the pipe 6. ing. The mounting nut 5 has a hollow cylindrical shape with upper and lower end openings larger in inner and outer diameters than the tubular fitting 2, and has an inward annular flange portion 12 that abuts the upper surface of the flange portion 10 of the rubber ring 4 at the lower end portion.
Is provided. The inner diameter of the flange portion 12 is slightly larger than the outer diameter of the cylindrical metal fitting 2. Reference numeral 13 is a female thread portion for mounting the water stopcock 14 formed on the inner peripheral surface of the mounting nut 5. Further, the upper end portion of the tubular metal fitting 2 is mounted on the upper surface of the flange portion 12 of the mounting nut 5 and engages with the outward annular flange portion.
15 are provided.

The state before the branch plug 1 is attached is shown in FIG. As shown in the figure, before mounting, the lower end portion of the tubular metal fitting 2 is formed into a conical cylindrical portion 17 having a tip opening narrowed in advance by a press or the like, and a fold is formed on the inner peripheral surface of the upper end of the conical cylindrical portion. A first annular groove 18 for bending is formed. A similar second annular groove for bending is formed on the outer peripheral surface of the tubular metal fitting 2 above the conical tubular portion 17.
19 are formed. Further, a plurality of cutout portions 20 each having a vertically elongated oval shape are formed in the circumferential direction on the conical cylindrical portion 17 and the cylindrical metal fitting 2 above the conical cylindrical portion 17. And these first annular grooves 1
8, the lower end of the tubular metal fitting 2 including the conical tubular portion 17 is vertically compressed via the second annular groove 19 and the cutout portion 20 to form the widened portion 21 as shown in FIG. ing.

In FIG. 2, the diameter D of the branch port 9 is the rubber ring 4
Is larger than the outer diameter a of the cylindrical metal fitting 2, the outer diameter c of the tubular metal fitting 2 is larger than the inner diameter b of the rubber ring 4, and the inner diameter e between the threads of the female thread portion 13 of the mounting nut 5 is larger than that of the annular flange portion 15 of the tubular metal fitting 2. It is larger than the outer diameter d. The inner diameter b ′ of the upper end opening of the rubber ring 4 is slightly smaller than the outer diameter c of the tubular fitting 2. This is to prevent the rubber ring 4 from falling. Further, as shown in FIG. 1, the outer diameter f of the tip of the expanded portion 21 expanded after mounting is naturally larger than the diameter D of the branch port 9.

FIG. 3 shows a method of pushing the branch plug 1 into the branch port 9 of the ductile pipe 6 to mount it, and at this time, a pulling shaft 23 and a pushing shaft 24 as shown in FIG. 2 are used. At the lower end of the pulling shaft 23, the tip is a flat surface, and a tapered conical portion 25 having a diameter slightly smaller than that of the conical cylindrical portion 17 of the tubular metal fitting 2 is formed, and the flat surface of the conical portion is the flat surface. A locking member 26 is detachably attached by a screw 27, which includes a small diameter portion 26a having the same diameter as the outer diameter and a large diameter portion 26b having the same diameter as the outer diameter of the tubular metal fitting 2 other than the conical tubular portion 17. The upper surface corners of the large diameter portion 26b of the locking member 26 should be easily separated from the tip of the conical cylinder portion 17 when the lower end of the cylindrical metal fitting 2 including the conical cylinder portion 17 is bent and expanded, and then further pulled up. It is chamfered in a rounded shape. The push-in shaft 24 is fitted to the outer periphery of the pull-up shaft 23 by fitting, and the female screw portion of the mounting nut 5 is attached to the outer peripheral surface thereof.
A male screw portion 28 that is screwed onto 13 is provided.

A method of attaching the water dip 1 to the branch port 9 of the ductile pipe 6 using the pulling shaft 23 and the pushing shaft 24 as described above will be described below.

First, the conical tubular portion 2 is inserted into the mounting nut 5 with the conical tubular portion 17 facing downward, and the flange portion 15 of the tubular metallic member 2 is inserted.
Is mounted on the upper surface of the flange portion 12 of the mounting nut 5 and engaged therewith, and then the pushing shaft 24 is screwed into the mounting nut 5 by screwing the male screw portion 28 and the female screw portion 13 into engagement with each other. Next, after inserting the pull-up shaft 23 in a state in which the locking member 26 is not attached into the cylindrical metal fitting 2, the locking member 26 is attached to the flat end surface of the conical portion 25 with the screw 27. At the time of this attachment, the tip opening edge of the conical cylinder portion 17 of the tubular metal fitting 2 is fixed to the large diameter portion 26 of the locking member 26.
It is locked on the upper surface of a. Further, the rubber ring 4 is pushed and attached so as to cover the outer peripheral surface of the lower end portion of the inserted tubular fitting 2 from below. The work so far does not have to be performed on the branching port 9 of the ductile pipe 6 or the like, and may be performed at any place outside the pipe 6.

In the above-mentioned state, the whole is brought over the branch opening 9 of the pipe 6, and the rubber ring 4 is set in a state where it enters the branch opening 9 (FIG. 3A). After that, when the pushing shaft 24 and the pulling shaft 23 are pushed into the branching port 9 of the pipe 6 from the lower end side at the same time, the body part of the rubber ring 4 is urged against the rim of the branching port 9 by the tubular metal fitting 2. It will be in a tightly fitted state, and the flange portion 10 of the rubber ring 4 will be
Is in contact with the outer peripheral surface of the pipe 6, and the flange portion 12 of the mounting nut 5 is in contact with the upper surface of the flange portion 10 of the rubber ring 4, so that the upper end portion of the rubber ring 4 is slightly compressed, and The conical cylinder part 17 comes to project from the lower end opening of the rubber ring 4 (FIG. 3B).

After that, when a handle (not shown) is rotated to pull up the pull-up shaft 23 (the push-in shaft 24 is left as it is), the large diameter portion 26b of the locking member 26 attached to the lower end of the pull-up shaft 23. The upper end of the conical cylindrical part 17 whose end opening edge is locked to the upper surface of the is bent outward so as to form a mountain part through the first annular groove 18, and when further raised, the outer periphery of the cylindrical metal fitting 2 above it. The portion is bent so as to form a valley portion through the second annular groove 19, and at this time, the cutout portion 20 is expanded laterally to facilitate bending, and by such bending or the like, it is compressed in the vertical direction as a whole. The widened portion 21 is formed (FIG. 3C).
Due to the formation of the widened portion 21, the position of the annular protrusion 11 of the rubber ring 4 that is pushed and spread is reversed from the inward direction to the outward direction,
Further, the rubber ring 4 is vertically compressed to promote the pressure-tight state between the tubular fitting 2 and the edge of the branch port 9, whereby the tubular fitting 2 is pressed.
A seal is maintained between the outer peripheral surface of the and the edge of the branch opening 9, and between the edge of the branch opening 9 and the rubber ring 4.

As shown in FIG. 3 (C), the pull-up shaft 23 has an expanded portion.
Although it is further pulled up after the formation of 21, the upper surface of the large diameter portion 26b of the locking member 26 whose corners are chamfered in a rounded shape is easily disengaged from the tip opening edge of the conical cylindrical portion 17, which hinders pulling up. Absent. Then, after pulling up to a predetermined position, the male screw portion 28 of the push-in shaft 24 and the female screw portion 13 of the mounting nut 5 are
The work is completed by unscrewing.

FIG. 4 shows another embodiment. In this embodiment, a small-diameter cylindrical portion 31 is provided concentrically at the inner end of the flange portion 12 of the mounting nut 5, and a tapered surface or a rounded surface is formed on the outer periphery of the lower end portion of the small-diameter cylindrical portion to have a smaller diameter downward. A surface 32 is formed. Also, the tubular metal fitting 2 and the flange portion 15 are the mounting nut 5
In the state of being engaged with the flange portion 12 of the mounting nut 5, the expanded portion 34 and the outer peripheral surface of which the outer peripheral surface is previously expanded by pressing or the like are squeezed into the lower end portion of the tubular metal fitting 2 protruding from the lower end of the small diameter cylindrical portion 31 of the mounting nut 5. The narrowed-down portion 35 having the front end opening is formed so that the narrowed-down portion 35 is connected to the lower end of the enlarged portion 34. The outer diameter of the enlarged portion 34 does not exceed the outer diameter of the small-diameter tubular portion 31. Further, the tip opening edge of the narrowing portion 35 is locked to the upper surface of the large diameter portion 26b of the locking member 26 in the same manner as the tip opening edge of the conical cylinder portion 17 of the above-mentioned embodiment. Reference numeral 36 is a cutout portion having a rhombus shape in the vertical direction, and a plurality of cutout portions 35 and a plurality of enlarged portions 34 are formed in the circumferential direction. Since other configurations are similar to those of the above-described embodiment, the same reference numerals are given to the same portions and the description thereof will be omitted.

In the above-mentioned mounting, the rubber ring 4 is set in a state in which it enters the branching port 9 as in the above-mentioned embodiment (see FIG. 4).
After A), when the pushing shaft 24 and the pulling shaft 23 are pushed simultaneously into the branching port 9 of the pipe 6 from the lower end side, the small-diameter cylindrical portion 31 of the mounting nut 5 is press-fitted into the rubber ring 4. The small-diameter tubular portion 31 causes the body portion of the rubber ring 4 to be in a tightly fitted state with respect to the rim of the branch opening 9, and the annular projection 11 is inverted from the inward direction to the outward direction. When is pulled up, the connecting portion of the narrowed portion 35 and the enlarged portion 34, whose front end opening edge is locked, forms a mountain portion on the upper surface of the large diameter portion 26b of the locking member 26 attached to the lower end of the pulling shaft 23. Thus, it is bent outwardly to form an expanded portion 37 similar to the expanded portion 21 of the above-described embodiment (FIGS. 4B and C), and other points are the same as those of the above-described embodiment. In the case of this embodiment, since the lower end of the small-diameter cylindrical portion 31 of the mounting nut 5 serves as a fulcrum during bending, the water faucet 1 can be mounted with the bending position uniform.

The pull-up shaft 23 and the push-in shaft 24 used for mounting in each of the above-described embodiments are merely examples, and do not necessarily have to be separate bodies as in the embodiments. For example, a member such as a push-in / pull-up member in which these are integrated may be used. In addition, the conical cylinder part 17, the narrowing part 35, the enlarged part
The structure of 34 is also a preferable example, and other structures are not excluded. Further, each embodiment is a water faucet 1 under uninterrupted water.
Is also effective as a mounting method, and in this case, the mounting nut 5 is screwed to the lower portion of the water stopcock 14.

[0022]

Since the inventions of claims 1, 2 and 3 are as described above, there are the following excellent effects. (1) The water dip can be very easily attached to the branch port of the fluid pipe by the pushing shaft. (2) Since the tubular metal fitting is prevented from coming off due to the expanded portion at the lower portion of the tubular metal fitting whose outer diameter is larger than the diameter of the branch port after attachment, the water faucet is reliably prevented from coming off. (3) The tubular metal fitting or the small-diameter tubular portion of the mounting nut is press-fitted into the rubber ring to press and close the rubber ring against the edge of the branch port, and further the annular flange portion and the lower portion of the upper end of the metal fitting are expanded. Since the rubber ring is sandwiched between the opening and the mounting part, the upper end of the rubber ring will be bent even if the water faucet bends after installation due to the ground movement due to an earthquake etc. The elastic force of the annular flange part of the part and the inverted annular projection of the lower end of the rubber ring absorbs the lateral force reasonably, without damaging the rubber ring,
It can be bent easily, the water-stopping function of the fluid is not deteriorated, and the water faucet is less likely to be broken. (4) The small diameter lower end of the tubular fitting presses the annular projection of the rubber ring against the inner surface of the pipe, so that even if the mortar lining inside the pipe, such as the ductile pipe, is broken or cracked during perforation, sufficient waterproofing is achieved. Can be held. (5) Even if chips and the like during drilling remain on the pipe top on the branch port, the tubular metal fitting is mounted straight by only being pressed by the annular flange portion of the rubber ring, and does not affect the consolidation of the rubber ring. Also, attach the water dip with the cutting chips in between,
After that, even if the chips fall off due to an earthquake, etc., the sealing effect of the fluid is not affected by the sealing mechanism of the rubber ring that is compacted at the edge of the branch port by press fitting the small diameter tubular part of the tubular fitting or mounting nut. It does not decrease.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view showing a state in which a water faucet showing an embodiment of the present invention is attached to a branch opening of a ductile pipe.

FIG. 2 is a longitudinal sectional front view before mounting showing a dimensional relationship between each part of a water faucet and a branch port.

3 (A), (B), and (C) are operation explanatory views showing a mounting method of the water faucet of FIG.

FIG. 4 is another embodiment of the water faucet, (A), (B),
(C) is an operation explanatory view showing the attachment method.

FIG. 5 is a vertical cross-sectional front view of a conventional water dip plug installed in a branch port of a fluid pipe.

[Explanation of symbols]

 1 Water tap 2 Cylindrical metal fitting 4 Rubber ring 5 Mounting nut 6 Ductile pipe 9 Branch opening 17 Conical cylindrical portion 18 First annular groove 19 Second annular groove 20 Cutout portion 21 Expanding portion 23 Pulling shaft 24 Pushing shaft 25 Cone Part 26 Locking member 31 Small diameter tube part 32 Tapered surface or rounded surface 34 Enlarged part 35 Narrowing part 36 Cutout part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takezo Yoshimura 1-12-19 Kitahori, Nishi-ku, Osaka City, Osaka Prefecture Kurimoto Iron Works Co., Ltd. (56) Reference JP-A-1-261594 (JP, A)

Claims (3)

(57) [Claims] 1. A tapered cone portion having a flat end at a lower end portion, wherein a locking member is formed on the flat tip end surface of the cone portion so as to have substantially the same outer diameter as that of the conical portion. It has a push-in / pull-up member that is detachably attached, and this push-in / pull-up member has an inward facing flange formed on the lower end of the tubular mounting member and an outward facing outer surface formed on the upper end of the tubular metal fitting. The metal fitting engaged with the annular flange and the mounting member are fitted into the outer circumference of the pushing / pulling member by the tubular metal fitting, and the lower end of the tubular metal fitting is narrowed in advance by a press or the like to form a tip opening. Of the conical cylindrical portion is fitted and supported so as to be locked to the upper surface of the locking member, an outward annular flange portion is formed at the upper end portion, and an annular protrusion is provided at the lower end portion. The rubber ring so that it touches the outer peripheral surface of the lower end of the tubular fitting. After being inserted into and supported by the rubber ring, the pushing and pulling member is pushed from the lower end side into the branch port formed in the fluid pipe and press-fitted, and the annular flange portion of the rubber ring comes into contact with the outer peripheral surface of the fluid pipe. After the annular flange portion of the mounting member is in contact with the upper surface of the annular flange portion of and the conical cylindrical portion projects from the lower end opening of the rubber ring, the pushing and pulling member is pulled up so that the tip opening edge is engaged with the upper surface of the locking member. The first annular groove formed on the inner peripheral surface of the upper end of the conical cylindrical portion, in which the annular protrusion of the rubber ring abuts the inner peripheral surface of the fluid pipe at the lower end portion of the tubular fitting including the stopped conical cylindrical portion, The second annular groove formed on the outer peripheral surface of the tubular fitting above the tubular portion, and the vertical compression via the conical tubular portion and a plurality of cutout portions circumferentially formed on the tubular fitting above the conical tubular portion. And outwardly so that the upper end of the conical cylinder portion in which the first annular groove is formed becomes the mountain portion. Ri bent by expanding mounting method of diversion plug, characterized by greater than the diameter of the branch port of the outer diameter of the enlarged opening portion. 2. A tapered conical portion having a flat end at the lower end, and a locking member formed on the flat end of the conical portion to have substantially the same outer diameter as that of the conical portion. A push-up / pull-up member detachably attached to the push-up / pull-up member. The push-up / pull-up member includes an inward annular flange portion formed at an upper large-diameter tubular portion, a lower end portion of the tubular portion, and an inner end portion of the flange portion. It consists of an upper large-diameter cylinder and a lower small-diameter cylinder that is concentrically provided.
An outward ring formed on the upper end of the tubular metal fitting on the upper surface of the annular flange portion of the tubular mounting member in which a tapered surface or a rounded surface is formed on the outer periphery of the lower end portion of the lower small-diameter tubular portion, the diameter being downwardly reduced. The inner peripheral surface of the small-diameter tubular portion of the mounting member is in sliding contact with the outer peripheral surface of the tubular metallic member, and the inner peripheral surface of the tubular metallic member is the outer periphery of the push-in / pull-up member. An enlarged portion formed by previously inflating the outer peripheral surface by a press or the like at the lower end of the cylindrical metal fitting that is slidably contacting the surface and protruding from the lower end of the mounting member, and the outer peripheral surface is squeezed to form a tip opening connected to the lower end of the enlarged portion. While being fitted and supported so that the front end opening edge of the narrowed-down portion is locked to the upper surface of the locking member,
A rubber ring having an outer annular flange formed on the upper end and an annular protrusion on the lower end is fitted and supported so as to abut the outer peripheral surface of the lower end of the tubular metal fitting, and then the push-in is performed. The combined pulling member is pushed from the lower end side into the branch port formed in the fluid pipe and press-fitted, the annular flange portion of the rubber ring contacts the outer peripheral surface of the fluid pipe, and the mounting member is attached to the upper surface of the annular flange portion of the rubber ring. After the annular flange portion is in contact and the narrowing portion and the enlarged portion project from the lower end opening of the rubber ring, the pushing and pulling member is pulled up and the upper end of the locking member is clamped by the cylindrical metal fitting with the tip opening edge locked. The annular projection of the rubber ring makes contact with the inner peripheral surface of the fluid pipe, and the compression section and the expanded section are compressed in the vertical direction through the multiple cutouts formed in the restriction section and the expanded section in the circumferential direction. , Bend outward to expand so that the concatenated part of the narrowed part and the enlarged part becomes a mountain part. Is allowed, the mounting method of diversion plug, characterized by greater than the diameter of the branch port of the outer diameter of the enlarged opening portion. 3. A push-up / pull-up member is detachably attached to a pull-up shaft having a tapered conical portion with a flat end at the lower end and a flat end of the conical portion of the pull-up shaft. 3. The method for mounting a water faucet according to claim 1, further comprising a locking member having an outer diameter substantially the same as that of the pull-up shaft, and a push-in shaft mounted on the outer periphery of the pull-up shaft.