JPH07229583A - Rising part construction unit for indoor double piping - Google Patents

Abstract

PURPOSE:To eliminate unreasonable installation of a main pipe joint part so as to prevent water leakage or the like by forming a rising part of a rising guide pipe into a straight pipe inclined at the fixed angle of inclination of an obtuse angle and slantingly forming the main pipe joint part in compliance with the inclination. CONSTITUTION:In execution, a rising guide pipe 15 with a fixing member 33 is fixed in the predetermined position on a base floor 11. Then, the end part of an installed sheath pipe 13 is connected to the rising guide pipe 15. Under this condition, the upper end part of a rising part 15b is projected from a hole 33 previously formed in the floor plate 21, and the upper end is cut at the same level as the floor plate surface. Subsequently, a main pipe 25 is inserted into the sheath pipe 13 and the rising guide pipe 15, and the main pipe 25 end part is pulled out from the rising guide pipe 15, and then, an obtuse angled elbow type joint 39 is installed in the main pipe 25 end part. Then, the joint 39 is pushed into the inside of the guide pipe 15, and a fitting part 45 of the joint 39 is fitted. After the ellipse plane part of the joint 39 is set to the same level as the upper face of the floor plate 21, a blindfold plate 55 is set, and clamping nut 61 is fastened, and then, the blindfold plate 55 is fixed on the floor plate 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rising portion construction unit for indoor double piping.

[0002]

2. Description of the Related Art Recently, double pipes in which a plastic main pipe is housed in a plastic pipe with a corrugated flexible pipe have been used for indoor water pipes.

The structure of the rising portion of this double pipe will be described with reference to FIGS. 16 to 20. First, as shown in FIG. 16, a sheath pipe 13 is laid along a predetermined path on the foundation floor (concrete slab or the like) 11 of the building before the floor board is stretched. Next, the rising guide pipe 15 is connected to the end of the sheath pipe 13 by a nut-shaped connecting member 17 at a position where the pipe is raised. afterwards,
The rising guide pipe 15 is fixed to a predetermined position on the foundation floor 11 by a fixing bracket 19.

In this state, the floor board 21 is stretched as shown in FIG. A hole 23 is previously formed in the floor plate 21 at a position corresponding to the rising portion of the rising guide tube 15. Since the height of the floorboard 21 from the foundation floor 11 often differs depending on the building, the rising portion of the rising guide pipe 15 is made vertically and long so that it can respond to the change in the height of the floorboard 21. Therefore, in a normal case, the upper end portion of the rising guide tube 15 projects from the upper surface of the floor plate 21, so that after this, the projecting portion of the rising guide tube 15 is cut, and the rising guide tube 15 is cut as shown in FIG.
The upper end of 15 is aligned with the upper surface of floorboard 21.

Since the sheath pipe 13 is now installed between the foundation floor 11 and the floor plate 21, the main pipe 25 is inserted into the sheath pipe 13 and the rising guide pipe 15 as shown in FIG. Then, the main pipe 25 is laid. At this stage, the end of the main pipe 25 is pulled out from the rising guide pipe 15, and then the floor fitting pipe joint 27 is attached to the end of the main pipe 25. Next, as shown in FIG. 20, the end portion of the main pipe 25 is pushed into the rising guide pipe 15, and the flange portion 29 of the floor fitting type pipe joint 27 is fixed to the floor plate 21 by screwing.

This completes the piping work for the plastic double pipe. After this, the metal pipe 31 rising from the floor is connected to the floor-mounted pipe joint 27.

Although the above is the case where the double pipe is installed between the foundation floor and the floor plate, the double pipe may be installed between the foundation wall and the wall plate in the same manner.

[0008]

As shown in FIG. 20, the rising portion of the indoor double pipe constructed as described above has a foundation floor.
There is no problem if the height H of the floorboard 21 from 11 is higher than a certain level. However, as shown in FIG. 21, when the height H of the floorboard 21 from the foundation floor 11 becomes low, a floor-mounting pipe joint 27 is attached to the end of the main pipe 25, and the end of the main pipe 25 rises to the rising guide pipe 15
When pushed in, the main pipe 25 is strongly bent at the mouth A of the pipe joint 27 due to the rigidity of the main pipe 25. Therefore, an unreasonable force is applied to the connecting portion between the main pipe 25 and the pipe joint 27, and water leakage may occur during long-term use.

Such a problem is that when a double pipe is installed between the foundation wall and the wall board, the height of the wall board from the foundation wall (in this case, the horizontal distance, but the relationship between the foundation floor and the floor board is It also occurs when the height is collectively low.

[0010]

DISCLOSURE OF THE INVENTION The present invention provides a rising portion construction unit for indoor double pipes, which solves the above-mentioned problems, and has the structure of a foundation wall or foundation floor and a floorboard or wallboard. It is a rising part construction unit of double piping to be piped between and, having a connection part of a double pipe sheath pipe on one end side, and from the foundation floor or foundation wall to the floorboard or wallboard on the other end side. A rising guide pipe having a rising portion rising in the hole, a fixing member for fixing the rising guide pipe to a foundation floor or a foundation wall, a connecting portion for the main pipe of the double pipe on one end side, and a mating member on the other end side. A pipe joint having a pipe connecting portion,
The rising portion of the rising guide pipe is formed in a straight tube shape at an obtuse constant inclination angle with respect to the axial direction of the sheath pipe connecting portion, and the main pipe connecting portion of the pipe joint is a rising portion of the rising guide pipe. It is characterized in that it is formed obliquely according to the inclination, and that a fitting portion that fits into the end of the rising portion of the rising guide pipe is formed at the base of the main pipe connecting portion. .

[0011]

According to the above construction, since the rising portion of the rising guide pipe is inclined, the degree of bending of the main pipe in the rising guide pipe can be loosened, and the end portion of the main pipe is inclined. Since the pipe is directly connected to the pipe joint, the main pipe is not strongly bent at the mouth of the pipe joint even if the height of the floor plate (or wall plate) from the foundation floor (or foundation wall) is low. In addition, since the rising part of the rising guide pipe is a straight tube with a constant inclination angle, the pipe fitting can be fitted in the same state no matter where it is cut according to the height of the floor plate (or wall plate). be able to.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 5 show rising portions of an indoor double pipe using a construction unit according to an embodiment of the present invention in a construction order, and FIG. 5 shows a rising portion of a completed indoor double pipe.

First, the structure of the rising guide tube 15 will be described with reference to FIG. The rising guide pipe 15 has a male screw portion for connecting the sheath pipe 13 to the one end side with a nut-shaped connecting member 17.
A rising part having 15a and rising from the foundation floor 11 on the other end side
It has 15b. The rising portion 15b is formed in a straight tube shape with a constant inclination angle which is an obtuse angle with respect to the axial direction of the sheath pipe connecting portion. The inclination angle of the rising portion 15b with respect to the axial direction of the sheath pipe connecting portion is preferably in the range of 120 ° to 150 °, and the illustrated example is 135 °. The upper end of the rising guide tube 15 is closed by the sealing portion 15c. If the upper end is closed, there is an advantage that foreign matter such as dust does not enter the rising guide pipe 15 during construction.

The rising guide tube 15 is preferably made of a soft resin so that it can be cut with a cutter knife or the like. In this embodiment, low density polyethylene is used. The wall thickness of the rising guide tube 15 is preferably in the range of 0.5 to 3.0 mm in consideration of both self-shape retention and cuttability, and is 2.0 mm in this embodiment. The rising guide tube 15 having the above structure can be manufactured by blow molding.

The rising guide tube 15 is integrally provided with a fixing member 33 for fixing it to the foundation floor 11. The fixing member 33 is made of resin and has a cylindrical portion 33a surrounding the bent portion of the rising guide tube 15 and a bottom plate portion 33b. The bottom surface in the state where the rising guide tube 15 and the fixing member 33 are integrated is as shown in FIG. Notches 35 for screwing are formed on both sides of the bottom plate portion 33b.

For the fixing member 33 having the above-mentioned shape, a mold for molding the fixing member is set so as to surround the bent portion of the rising guide tube 15, and a two-liquid mixed curing type resin material is set therein. It can be formed by injection and curing. Fixing member 33
It is preferable to use a hard resin having a good adhesiveness with the rising guide tube 15 and having a mechanical strength necessary for fixing to the foundation floor 11. When the rising guide tube 15 is made of low-density polyethylene, the material of the fixing member 33 is preferably polynorbornene (open-ring polymer of norbornene-based monomer). When the rising guide pipe 15 and the fixing member 33 are integrated as described above, the work of fixing the rising guide pipe 15 to the foundation floor or the like becomes easy.

In the construction, first, the rising guide pipe 15 with the fixing member 33 constructed as described above is attached to the foundation floor.
It is fixed in place 11 with screws 37. Next, the end portion of the sheath pipe 13 laid on a predetermined route is connected to the rising guide pipe 15 by the connecting member 17.

In this state, the floor board 21 is stretched as shown in FIG. The rising part 15b of the rising guide pipe 15 is previously formed on the floor plate 21.
A hole 23 is formed at a position corresponding to. Rising part 15b
Is made longer so that it can respond to changes in the height of the floor plate 21, so when the floor plate 21 is stretched, the upper end of the rising portion 15b projects from the upper surface of the floor plate 21. Therefore, the rising portion 15b is cut with a cutter knife or the like so that its upper end is at the same level as the upper surface of the floor plate 21.

Next, as shown in FIG. 3, the main pipe 25 is inserted into the sheath pipe 13 and the rising guide pipe 15 to lay the main pipe 25. At this stage, the end of the main pipe 25 is pulled out from the rising guide pipe 15, and then the obtuse-angle elbow type pipe joint 39 is attached to the end of the main pipe 25.

This pipe joint 39 has a structure as shown in FIGS. 8A to 8D, and connects a mechanical main pipe connecting portion 41 for connecting the main pipe 25 made of resin and a metal pipe to be connected. And a mating pipe connecting portion 43 of a screw type. The main pipe connecting portion 41 is formed obliquely according to the inclination of the rising portion 15b of the rising guide pipe 15, and the mating pipe connecting portion 43 is formed so as to face the vertical direction with respect to the upper surface of the floor plate 21. That is, in the illustrated example, the main pipe connecting portion 41 is 135
It is formed at an angle of °.

In the pipe joint 39, a fitting portion 45 which is fitted to the upper end portion of the rising guide pipe 15 is formed at the base of the main pipe connecting portion 41. The fitting portion 45 is a cylindrical surface having the same central axis as the main pipe connecting portion 41, and its outer diameter is slightly smaller than the inner diameter of the rising portion 15b of the rising guide tube 15. In addition, the pipe joint 39 includes a collar portion 47 for preventing the rising guide tube 15 from falling into the rising portion 15b, a spanner hooking portion 49, a male screw portion 51 for screwing a holding nut described later, a blindfold plate and a surface described later. An elliptical flat surface portion 53 and the like that are in contact with each other are formed. The material of the pipe joint 39 is, for example, BC6 of JIS B 5111 (bronze casting) or C3604 of JIS H 3250 (copper and copper alloy rod).

After the pipe joint 39 is attached to the end of the main pipe 25, the end of the main pipe 25 and the pipe joint 39 are pushed into the rising guide pipe 15 to fit the pipe joint 39, as shown in FIG. The joint portion 45 is fitted to the upper end portion of the rising guide tube 15. When pushed in to the end, the elliptical flat surface portion 53 of the pipe joint 39 becomes at the same level as the upper surface of the floor plate 21.

Next, the hole between the floor plate 21 and the rising guide tube 15
Set the blindfold plate 55 that closes 23. As shown in FIG. 9, the blind plate 55 has a rectangular shape, an opening 57 large enough to receive the flange 43 of the pipe joint 39, and screw holes 59 at four corners. The size of the opening 57 is smaller than the major axis of the elliptical flat surface portion 53 of the pipe joint 39. The thickness of the blind plate 55 is the same as or slightly thicker than the thickness of the collar portion 47 of the pipe joint 39.

After the blindfold plate 55 is set, the holding nut 61 is screwed onto the male screw portion 51 of the pipe joint 39 and tightened as shown in FIG. The planar shape of the holding nut 61 is shown in FIG. By tightening the clamp nut 61, the pipe joint 39 becomes a blind plate 55.
Fixed to. After that, screw the four corners of the blindfold plate 55.
It is fixed to the floor plate 21 by 63. This completes the rising portion of the indoor double pipe of this embodiment.

With this structure, the rising guide tube
Since the rising portion 15b of 15 is slanted, the degree of bending (curvature) of the main pipe 25 in the rising guide pipe 15 can be loose, and the main pipe connecting portion 41 of the pipe joint 39 can be used as a rising guide. tube
Since the main pipe 25 is inclined according to the inclination of the rising portion 15b of the pipe 15, the main pipe 25 is not strongly bent at the mouth of the pipe joint 39, and the long-term reliability of the connection portion is improved.

After the completion, as shown in FIG. 6, a covering material 65 is stretched on the floor plate 21 and the blind plate 55, the mating pipe connecting portion 43 of the pipe joint 39 is screwed and connected, and the connection is further made. Wanza 67 is put on so as to blindfold the part.

11 to 13 show another example of the rising guide tube 15 and the fixing member 33 which constitute the construction unit of the present invention. This rising guide pipe 15 has a straight pipe portion 15 with a short bend.
It is different from that of the above embodiment in that d is formed and that the rising portion 15b is provided with a mark 69 indicating the height level. The fixing member 33 is formed by bending a metal plate, and has a structure in which the short straight pipe portion 15d of the rising guide pipe 15 is fastened with a bolt 71. Rising guide tube 15
Since other structures are similar to those of the above-mentioned embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

14 (A) to (D) show another example of the pipe joint 39 constituting the construction unit of the present invention. This pipe fitting 39
Is different from the pipe joint shown in FIG. 8 in that the blind plate is fixed without using a holding nut, so that the elliptical flat surface portion 53 is provided with a screw hole 73 for screwing the blind plate, and the collar portion. That is to say that 47 is a square. In this case, cover the blindfold plate with the holes corresponding to the screw holes 73 and the collar.
It is necessary to form a square hole into which 47 is fitted. By doing so, by fixing the blind plate to the floor plate, it is possible to prevent the pipe joint 39 from rotating when the metal pipe 31 is connected to the mating pipe connecting portion 43. Since the other structure is the same as that of the above-mentioned embodiment, the same reference numerals are given to the same portions and the description thereof will be omitted.

FIG. 15 shows another example of the rising guide tube constituting the construction unit of the present invention. This rising guide tube 15
Shows a vertical rising portion 15e formed at the tip of the rising portion 15b formed obliquely. Such a rising guide tube 15 is effective when the height of the floor board is very high. Since the height of the floor plate is high, the conventional pipe joint 27 as shown in FIG. 19 may be used when the vertical rising portion 15e is cut.

In each of the above embodiments, the case where the double pipe is installed between the foundation floor and the floor plate has been described, but the present invention is similarly applied to the case where the double pipe is installed between the foundation wall and the wall plate. It is possible.

[0031]

As described above, according to the present invention, the degree of bending of the main pipe in the rising guide pipe is reduced, and the main pipe connecting portion of the pipe joint moves in the same direction as the end portion of the main pipe. Since it faces, even if the height of the floorboard (or wallboard) from the foundation floor (or foundation wall) is low, the main pipe will not be forcibly bent at the mouth of the pipe joint. Therefore, the long-term reliability of the connecting portion between the main pipe and the pipe joint is improved, and the risk of water leakage is eliminated. In addition, the rising part of the rising guide pipe is a straight pipe with a constant inclination angle, so the floor plate (or wall plate)
The pipe fitting can be fitted in the same state regardless of the position of cutting according to the height.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first step of assembling a rising portion of an indoor double pipe using a construction unit according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the next step of FIG.

FIG. 3 is a cross-sectional view showing the next step of FIG.

FIG. 4 is a cross-sectional view showing the next step of FIG.

FIG. 5 is a cross-sectional view showing a completed state of the rising portion of the indoor double pipe using the construction unit according to the embodiment of the present invention.

6 is a cross-sectional view showing a state in which a metal pipe rising from the floor is connected to a rising portion of the indoor double pipe in FIG.

7 is a bottom view showing the rising guide tube and the fixing member in FIG. 1. FIG.

8A is a front view of the pipe joint in FIG.
(B) is a plan view, (C) is a bottom view, and (D) is a left side view.

9 is a plan view of the blind plate in FIG. 4. FIG.

FIG. 10 is a plan view of the holding nut in FIG.

FIG. 11 is a front view showing another example of the rising guide tube and the fixing member which constitute the construction unit of the present invention.

FIG. 12 is a bottom view of the rising guide tube and the fixing member of FIG. 11.

13 is a right side view of the fixing member in FIG.

14A and 14B show another example of a pipe joint constituting the construction unit of the present invention, where FIG. 14A is a front view and FIG. 14B is a plan view.
(C) is a bottom view and (D) is a left side view.

FIG. 15 is a sectional view showing still another example of the rising guide tube and the fixing member which constitute the construction unit of the present invention.

FIG. 16 is a front view showing a first step of assembling the rising portion of the conventional indoor double pipe.

FIG. 17 is a front view showing the next stage of FIG. 16.

FIG. 18 is a front view showing the next stage of FIG. 17.

FIG. 19 is a cross-sectional view showing the next step of FIG. 18.

FIG. 20 is a cross-sectional view showing a completed state of a rising portion of a conventional indoor double pipe.

FIG. 21 is a cross-sectional view showing a problem at a rising portion of a conventional indoor double pipe.

[Explanation of symbols]

 11: Foundation floor 13: Saya pipe 15: Rise guide pipe 15b: Rise portion 21: Floor plate 23: Hole 25: Main pipe 31: Metal pipe (mating pipe) 33: Fixing member 39: Pipe joint 41: Main pipe connecting portion 43 : Mating tube connection part 45: Fitting part 55: Blind plate 61: Holding nut

Claims (3)

[Claims] 1. A double-pipe rising part construction unit to be piped between a foundation wall or foundation floor and a floorboard or wallboard, which has a connection portion for the double-pipe sheath pipe at one end side, A rising guide tube having a rising portion rising from the foundation floor or foundation wall into the hole of the floor plate or wall board on the other end side, a fixing member for fixing this rising guide pipe to the foundation floor or foundation wall, and double piping on one end side. And a pipe joint having a mating pipe connecting part on the other end side, wherein the rising part of the rising guide pipe has a constant obtuse angle with respect to the axial direction of the sheath pipe connecting part. It is formed in a straight tube shape at an angle, the main pipe connecting portion of the pipe joint is formed obliquely according to the inclination of the rising portion of the rising guide pipe, and the rising guide pipe is provided at the base of the main pipe connecting portion. Has a mating part that mates with the end of the rising part of , Rising portion construction units of indoor double pipe, characterized in that. 2. The unit for constructing a rising portion of an indoor double pipe according to claim 1, further comprising a blind plate for closing a hole between the floor plate or the wall plate and the rising guide pipe, wherein the pipe joint is a blind plate. The blind plate has a fixing part to a floor plate or a wall plate. 3. A unit for constructing a rising portion of an indoor double pipe according to claim 1 or 2, wherein the rising guide pipe and a fixing member are integrated, and the rising guide pipe is made of a soft resin which is easy to cut. , The fixing member is made of a hard resin that ensures the fixing to the foundation floor or the foundation wall.