JPH08260528A - Two-faucet branch connection for builtup bathroom - Google Patents

Abstract

PURPOSE: To prevent leakage by integrally forming the joint body of a branch joint for two-faucet type builtup bathroom, a water (hot water) feed port, and two branched holes together by casting. CONSTITUTION: Female screws are cut out the inner surfaces of a water (hot water) feed port 2 and a pair of branched holes 3, respectively, the branched holes 3 are inclined down at about 15-45, preferably, about 30, and the water (hot water) feed port 2 and the branched holes 3 are integrally molded by casting through a triangular sectional connecting part 4 to form a branch connection 1. Since no seal part by an U-ring is present as in a conventional joint, the leakage from the part of the joint can be prevented. Even when a pipe which is a back piping to a bathroom is rolled on a floor, the pipe itself can be raised and installed to the branched roles 3 of the branch connection 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-water faucet branch joint used for a back piping structure of an assembled bathroom and a back piping structure using the same.

[0002]

2. Description of the Related Art Recently, assembled bathrooms are widely used not only in high-rise condominiums and hotels but also in general households, and usually waterproof pans, bathtubs, peripheral walls, ceilings, etc. are made of FRP members. Each of these members is assembled in advance with screws or the like to form a bathroom, and water and hot water supply pipes are installed at predetermined positions by providing piping on the back side of the bathroom.

In this bathroom, in the case of a double faucet bathroom, normally, the main pipe is branched from the main pipe via a rotary header, but each header's chease has an O-ring. Since it is used for sealing, water leakage may occur due to insufficient tightening, and improvement has been requested. Further, in the case of a double faucet bathroom, at least four branching cheeks are required, so that the rate of water leakage increases accordingly.

FIG. 11 shows an example of the rotary header-30, which has a partition 3 at the center of the header-30.
This is an example in which 1 is provided, and two header-side cheeses 32 ₁ , 32 ₂ , 33 divided by the partition 31 are provided on the left and right.
₁ , 33 ₂ are provided. Each of these teeth is rotatable in the circumferential direction with respect to the header-30.
The direction is free. And, the header-use chees 3
The 2 _1, 32 ₂ side water inlet 32 _0, one of the header - for Chi - hot water outlet 33 ₀ 33 ₁ 33 ₂ side. Cold water and hot water are supplied to the water supply port 32 ₀ and the hot water supply port 33 ₀ from a main pipe (not shown), and branched into two at each cheese and led to each faucet.

[0005]

However, as shown in FIG. 12, the O-rings 34 are fitted in each of the teeth to prevent water leakage. However, if tightened loosely, water leakage occurs. This is unavoidable, and since the O-ring 34 on the hot water supply side is likely to deteriorate, the rate of water leakage is high. In view of the above points, it is an object of the present invention to provide a two-faucet branch joint that is particularly advantageously used for the back pipe of a two-faucet type assembled bathroom.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and a first aspect of the invention is a two-faucet type assembled bathroom having two water taps and two hot water taps, respectively. The present invention relates to a branch joint of a two-faucet assembly bathroom, wherein the joint body, a water supply (hot water) port, and two branch ports are integrally formed by casting.

[0007] Usually, the two branch ports are branch joints formed in the same direction, preferably the branch port for the water supply (hot water) port, that is, about 15 to about the direction of fluid flow. A branch joint that is arranged at an angle of 45 degrees,
More preferably, it is a branch joint in which the water supply (hot water) port and the branch port are push-lock mechanisms.

A second aspect of the invention is to install a joint on the back side of a bathroom wall facing each faucet fitting of a two-faucet type assembled bathroom provided with two water taps and a hot water tap, and to provide a back side of a waterproof pan. It has a branch joint connected to the main pipe and a flexible pipe is installed between both joints, both joints do not have a push lock mechanism, and the branch port is a waterproof pan. On the other hand, the present invention relates to a back pipe structure of a double faucet type assembled bathroom, which is attached so as to be inclined downward by about 15 to 45 degrees.

Then, a cushioning material is usually wound around the outer peripheral surface of the pipe, and the cushioning material is covered with a protective pipe. Further, a terminal cover is fitted into the end of the protective pipe, and the caps of the push-lock joint and push-lock branch joint are fitted. A back pipe structure of a double faucet type assembled bathroom in which an end cover is covered, wherein the pipe is a polybutene resin pipe and the cushioning material is a laminated sheet of polyethylene foam sheet and aluminum foil.
The glove ring, the washer, and the O-ring are sequentially fitted to the inner peripheral surfaces of the joint and the branch joint, and the push tube and the protective tube are held by a cap. In the lock type, the pipe is sandwiched between the support sleeve and the claw of the glove ring.

[0010]

The first branch joint for two faucets of the present invention is one in which two branch ports and a water supply (hot water) port are integrally formed by casting, and an O-ring as found in a conventional joint. There is no seal part. Therefore, there is no risk of water leakage from the joint. Further, since it is used as a back pipe in the assembled bathroom, the workability is improved by limiting the arrangement relationship between the water supply (hot water) port and the branch port, and the force to be applied to the pipe is not too great. It is characterized by Especially the branch port is 15 to 45
Inclining downward by about 30 degrees, preferably about 30 degrees, makes it easy to mount the flexible pipe. Further, if the branch joint adopts the push lock mechanism, the workability is further improved.

In the back piping structure of the second aspect of the present invention,
Preferably, a joint and a branch joint provided with a push-lock mechanism are used, and further, a flexible synthetic resin pipe is used as the back piping structure, fixing between the pipe and each joint becomes extremely quick, and both Although the pipe is attached to the joint and used for transportation, in some cases the branch joint pipe is flexible, so this pipe is attached to the faucet side joint at the bathroom assembly plant, and this pipe is rolled up and transported. It was possible to do this, and even if it was pushed during transportation, it did not bend like a conventional pipe at all, and its workability was significantly improved.

Furthermore, in the case of a rigid metal pipe, there was almost no tolerance in the dimensions of the piping structure, the positions of the holes in the assembled wall and the positions of the branch joints, and the workability was extremely poor, but since a flexible pipe was used. There is an advantage that the length of the pipe does not need to be adjusted so much, and there is also an advantage that even if there is a slight deviation in the fixing portion of the joint or the branch joint, it does not pose a problem.

As a preferred combination as the back piping structure of the second aspect of the present invention, the synthetic resin pipe is a polybutene resin pipe, and the cushioning material is a laminate of polyethylene foam sheet and aluminum foil. It is preferable that the sheet and the protection tube are sheaths made of synthetic resin, and particularly as a push-lock joint and a branch joint, a grab ring, a washer, and an O-ring are sequentially fitted to the inner peripheral surface of these joints,
A push lock mechanism of a type in which this is held by a cap is preferable, and the pipe is clamped and fixed between the support sleeve and the claw of the glove ring.

Since the polybutene pipe which is preferably used as this pipe has a small longitudinal elastic modulus, it is possible to absorb the impact sound of water generated when a faucet fitting called a water hammer is suddenly closed. Become. In this respect,
In the conventional PVC lining steel pipe or copper pipe, it does not mitigate water hammer noise by itself, and it is said that the flow velocity of water in the pipe is reduced to cope with the impact noise of water. For this reason, it has been decided to use a faucet metal fitting having a diameter one or more times larger than that of the faucet metal fitting, which has been a factor of cost increase, but this could also be eliminated.

In addition, the conventional metal pipe has a problem of corrosion, and when the piping structure has a three-dimensional structure, it may be deformed during transportation or the connection part may loosen to cause water leakage. There were problems such as poor transport efficiency and the need for a storage space on site. In this respect, since the synthetic resin pipe is flexible, it can be wound up in a loop shape during transportation, there is no problem of corrosion, and all the drawbacks of the conventional metal pipe can be solved.

The push-lock mechanism in the joint is a mechanism in which the pipe can be fixed to the joint simply by press-fitting it. The grab ring, washer and O-ring are sequentially fitted and held by a cap. . Therefore, the pipe is sandwiched and fixed between the support sleeve inserted at the tip of the pipe and the claw of the glove ring.

The cushioning material serves to cushion the squeaking noise and the hitting noise between the pipe and the protective tube and is expected to have a heat retaining effect.
Further, the protective pipe is intended to protect the pipe from the environment at the work site, and for the purpose of protecting it from, for example, a welding slab, preventing dew condensation on the water supply pipe, and keeping the hot water supply pipe warm. Further, the terminal cover covers the protective pipe and the pipe, and also covers the cap portion such as the joint.

[0018]

The present invention will be described in more detail below.
1 is a front view of a first branch joint 1 of the present invention, and FIG. 2 is FIG.
FIG. 3 is a side view of the branch joint of FIG. 3, and FIG. 3 is a sectional view taken along line AA of FIG. In the figure, 1 is a branch joint formed by casting and integrally molding a material BC-6, 2 is a water supply (hot water) port, and 3 is a pair of branch ports. Each of the water supply (hot water) port 2 and the branch port 3 is provided with an internal thread. Then, the water supply (hot water) port 2 and the branch port 3 are configured such that the fluid flows in the same direction when seen in a plan view. However, when viewed from the side, the branch port 3 is configured to be inclined 30 degrees with respect to the direction of fluid flow with respect to the water supply (hot water) port 2.
The water supply port 2 and the branch port 3 are connected by a connecting portion 4 having a triangular cross section. FIG. 4 shows a modified example of the joint, in which the connecting portion 4 has a rectangular shape.

The pipe 5, which is the back pipe for the bathroom, is piped to the branch opening 3 even if it is rolled on the floor.
It is possible to launch itself and put it on. That is, when the branch joint is fixed to the waterproof pan, the branch port 3 has about 3
It is installed with a downward inclination of 0 degrees, so the pipe 5 rolled on the floor stands up as it is,
It can be attached to the branch opening 3.

FIG. 5 is a side view showing a second embodiment of the first branch joint 1 of the present invention, and FIG. 6 is a sectional view taken along line BB of FIG. In this example, the branch port 3 has a push lock mechanism described later. Also, as in the previous example, the branch port 3 is provided with an inclination angle (30 degrees), and the pipe 5
It's a stool to put on.

FIG. 7 is a front view showing a third embodiment of the first branch joint 1 of the present invention, and FIG. 8 is a sectional view taken along line CC in FIG. In this example, one of the branch ports 3 is in series with the water supply (hot water) port 2 and the other is 9
It is provided by bending the direction of 0 degree. The branch port 3 in this example also employs a push lock mechanism.

FIG. 9 is a conceptual diagram of the back piping of the second assembled bathroom of the present invention. In the figure, 10 is a bathroom, 12 is a waterproof pan, and 13 is a bathtub. Further, 14 ₁ and 14 ₂ are water faucet metal fitting hot water supply connection portions, and 15 ₁ and 15 ₂ are water faucet metal fitting hot water supply connection portions. Joints 16 ₁ , 16 ₂ , 17 ₁ , 17 ₂ are fixed to these metal fittings on the outside of the wall of the bathroom.
And a branch joint 18 fixed to the back side of the waterproof pan 12
_The flexible pipe 5 connects between ₁ and 18 ₂ .

FIG. 10 is a partially exploded view of the back piping structure.
In the figure, 20 is a push-lock joint, which is used as the joints 16 ₁ , 16 ₂ , 17 ₁ , 17 ₂ of the pipe 5 as the faucet metal fitting hot water supply connection parts 14 ₁ , 14 ₂ and the hot water metal fitting hot water supply connection of the bathroom 10. It is those attached to the part 15 _1, 15 ₂ on the side wall of the bath corresponding (including apron) 11, 21 grab ring, the synthetic resin washer 22 -, the 23 O-
These are rings, each of which is sequentially fitted into the inner cylinder of the joint, and these are set by screwing the synthetic resin cap 24 onto the male screw portion of the joint. This push lock mechanism can be directly applied to the branch joints 18 ₁ and 18 ₂ .

The push-lock joint 20 and the branch joint 1
A polybutene resin pipe 5 is provided between the pipes 8 ₁ and 18 _2, and a support sleeve is provided at both ends of the pipe 5.
The pipe 7 is fitted and the tip of the pipe 5 is inserted into the cap described above. The tip of the pipe 5 is sandwiched and fixed between the support sleeve 6 and the claw of the grab ring 21. It will be.

On the outer periphery of the pipe 5, a polyethylene foam sheet (buffer material) 7 having a thickness of 1 mm and an aluminum foil laminated on the outer side is wound up, and a polyethylene protective tube (sheath) is placed on the polyethylene foam sheet (buffer material) 7. The tube 8 is covered with a vinyl chloride terminal cover 9, and the end of the protective tube 7 is covered with a terminal cover 9 made of vinyl chloride. The terminal cover 9 has a rear end that covers the protective tube 7 and a front end that covers the caps 24 of the joints, and covers both ends of the pipe 5 for protection. Since the end cover 9 is made of a relatively flexible material, the end cover 9 can be detached from the cap 24 so that the inside can be visually recognized.

[0026]

EFFECTS OF THE INVENTION Since the present invention has the above-described structure, water leakage from the branch joint is eliminated, and moreover, the flexible pipe and the joint and the like are fixed quickly, and the pipe is mounted and transported in the bathroom assembly plant. It is possible to do so and is not damaged during transportation. Further, there is also an advantage that even if there is a slight deviation in the fixing portion of the joint or the branch joint, it does not cause a problem.

[Brief description of drawings]

FIG. 1 is a front view of a first branch joint of the present invention.

FIG. 2 is a side view of the branch joint of FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a modification of the branch joint of FIG.

FIG. 5 is a side view showing a second embodiment of the first branch joint of the present invention.

6 is a cross-sectional view taken along the line BB of FIG.

FIG. 7 is a front view showing a third embodiment of the first branch joint of the present invention.

8 is a cross-sectional view taken along the line CC of FIG.

FIG. 9 is a conceptual diagram of the back pipe of the second assembled bathroom of the present invention.

FIG. 10 is a partially exploded view of the back piping structure.

FIG. 11 is a perspective view showing an example of a rotary header.

FIG. 12 is a perspective view of a single unit of the rotary header.

[Explanation of symbols]

1 ... Branch joint, 2 ... Water supply port, 3 ... Branch port, 4 ... Branch joint connecting part, 5 ... Pipe used for back piping, 6 ... Support sleeve, 7 ... cushioning material (polyethylene foam sheet), 8 ... sheath tube (polyethylene protective tube), 9 ... vinyl chloride terminal cover, 10 ... bathroom, 11 ... bathroom side wall, 12・ ・ ・ Waterproof pan, 13 ・ ・ ・ Bathtub, 14 ₁ , 14 ₂・ ・ ・ Faucet metal fitting hot water supply connection, 15 ₁ , 15 ₂・ ・ ・ Faucet metal fitting hot water connection, 16 ₁ , 16 ₂ , 17 ₁ , 17 ₂・ ・ ・‥ joint connected to the fitting, 18 _1, 18 ₂ ‥‥ branch joint, 20 ‥‥ push-lock fitting, 21 ‥‥ grab ring, 22 ‥‥ synthetic resin washer -, 23 ‥‥ O- rings, 24 ‥‥ synthetic Resin cap, 30 ... Rotating header-, 31 ... Rotating header-center partition _{, 32 1, 32 2, 33} 1, 33 2 ‥‥ header - for Chi -
, 32 ₀ ... water inlet, 33 ₀ ... hot water inlet, 34 ... O-ring.

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 7, 1996

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

FIG. 9 is a conceptual diagram of the back piping of the second assembled bathroom of the present invention. In the figure, 10 is a bathroom, 12 is a waterproof pan, and 13 is a bathtub. Further, 14 ₁ and 14 ₂ are water faucet metal fitting hot water supply connection portions, and 15 ₁ and 15 ₂ are water faucet metal fitting water supply connection portions. Joints 16 ₁ , 16 ₂ , 17 ₁ , 17 ₂ are fixed to these metal fittings on the outside of the wall of the bathroom.
And the branch joint 1 fixed to the back side of the waterproof pan 12
The flexible pipe 5 connects between 8 ₁ and 18 ₂ .

Claims (11)

[Claims] 1. Two having two water taps and two hot water taps, respectively
A branch joint for a faucet-type assembled bathroom, wherein a joint body, a water supply (hot water) port, and two branch ports are integrally formed by casting. 2. The branch joint for a double faucet type assembled bathroom according to claim 1, wherein the two branch openings are formed in the same direction. 3. The branch port is approximately 15 with respect to the direction of fluid flow.
The branch joint for a double faucet type assembled bathroom according to claim 3, wherein the branch joint is inclined at an angle of about 45 degrees. 4. The branch joint for a double faucet type assembled bathroom according to claim 1, wherein the water supply (hot water) port and the branch port are push-lock mechanisms. 5. A two water tap and a hot water tap provided with two
Faucet type assembly A joint is arranged on the back side of the bathroom wall facing each faucet fitting of the bathroom, a branch joint connecting to the main pipe is arranged on the back side of the waterproof pan, and a flexible pipe is installed between both joints. A double-water faucet structure in which both joints have a push-lock mechanism, and the branch opening is inclined downward by approximately 30 degrees with respect to the waterproof pan. The back piping structure of the assembled bathroom. 6. A pipe is wound around the outer peripheral surface of the pipe and is covered with a protective tube over the cushioning material, and a terminal cover is fitted into the end of the protective pipe, and the caps of the push-lock joint and the push-lock branch joint are terminated. The back piping structure of the double faucet type assembled bathroom according to claim 5, wherein the cover end is covered. 7. The back piping structure for an assembled bathroom according to claim 5, wherein the pipe is a polybutene resin pipe. 8. The polyethylene foam sheet is used as the cushioning material.
The back piping structure for a double faucet type assembled bathroom according to claim 5, wherein the back sheet is a laminated sheet of a sheet and an aluminum foil. 9. The back piping structure for a double faucet type assembled bathroom according to claim 5, wherein the protection pipe is a sheath made of synthetic resin. 10. A grab ring, a washer, and an O-ring are sequentially fitted to the inner peripheral surfaces of the joint and the branch joint,
The back pipe structure of the double faucet type assembled bathroom according to claim 5 or 6, which is a push lock type in which this is held by a cap. 11. The pipe according to claim 5, wherein the pipe is sandwiched between a support sleeve and a claw of a grab ring.
The back piping structure of the double faucet type assembled bathroom according to the item.