JPH10306473A - Fitting tool for piping and structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting tool for piping and the structure in which one kind of through hole can be required on a wall body and even piping having a little difference in the outer diameter and the outline shape can be fixed because the difference is absorbed and the placing depth of a filling material can be secured. SOLUTION: A piping 3 covered with an elastic body 4 at the outer periphery is held from both radial sides of the piping 3 by a fitting tool 1 divided to two portions and inserted in a through hole of an external wall 2. In this time, the pipe 3, the elastic body 4, the fitting tool 1 for the pipe, and the inside wall face 2b of the external wall 2, are integrally fixed and supported by the elastic force of the elastic body 4 pressed by pressing rings 1c, 3d, 1e. The collar 1f is forced to contact the wall face 2c of the external wall 2 and a recess 2a1 in which a sealing material 5 can be charged, is formed between the wall face 2d of the outdoor side A and the pressing ring 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe fitting for mounting pipes, such as a water supply pipe, a hot water pipe, or a drain pipe, to a wall and a pipe mounting structure using the pipe fitting. The present invention relates to a pipe fitting that can be easily and reliably implemented, and a pipe mounting structure using the pipe fitting.

[0002]

2. Description of the Related Art Conventionally, as an example of a construction method of attaching a water faucet and a water supply pipe to an outer wall facing a veranda, a garden, a rooftop, etc., for example, construction methods shown in FIGS. It was generally practiced.

That is, as shown in FIG.
A large-diameter large hole 52 is drilled from the outdoor side A of the outer wall 51 to a predetermined depth in an outer wall 51 formed of an LC panel or concrete, and then, a portion corresponding to the center of the large hole 52 is provided. A small hole 53 having a small diameter corresponding to the outer diameter of the water supply pipe 54 is formed, and a through hole is formed in the outer wall 51 by the large hole 52 and the small hole 53.

[0004] Next, as shown in FIG.
Insert the distal end 54a of the elbow part at the end of 54 from the indoor side B of the outer wall 51 into the through hole consisting of the small hole 53 and the large hole 52, and connect the lower part of the elbow part with the saddle band 55 and the screw 56 to the outer wall 51. Fix to inside B. Then, as shown in FIG. 6 (c), a sealing material 57 is filled in a gap between the outer side A of the outer wall 51 and the inner peripheral surface of the large hole 52 of the through hole and the outer peripheral surface of the distal end portion 54a of the water supply pipe 54. After sealing, the faucet fitting 58 is connected to the distal end portion 54a of the water supply pipe 54, so that the water supply pipe 54
And the faucet fitting 58 is fixed to the outer wall 51.

[0005]

However, in the above-described conventional example, the through hole provided in the outer wall 51 is provided with a water supply pipe 54.
And a large hole 52 for filling and sealing the sealing material 57 with a two-stage hole having the same center and two different diameters. And the perforation work was difficult.

[0006] In particular, when a two-step hole having the same center and two different diameters is formed, two steps of drilling are usually performed using two types of hole saws having different diameters. In this case, it is difficult to match the centers of the holes having different diameters from each other, so that it is difficult to obtain the concentric accuracy of the small hole 53 and the large hole 52, and there is a problem that the drilling operation takes time.

Further, the diameter of the small hole 53 must be set in accordance with the outer diameter of the water supply pipe 54, and the water supply pipe 54 to be used must be made of an HIVP (impact-resistant vinyl chloride pipe).
When the outer shape is different depending on the type such as VLP or VLP (vinyl-lined steel pipe), or when multiple water supply pipes 54 with different outer diameters are arranged, it is necessary to change the diameter of the small holes 53 each time. There is a problem in that the efficiency of drilling the small holes 53 is reduced.

When the water supply pipe 54 is made of HIVP,
Due to its structure, the outer diameter of the tip 54a of the water supply pipe 54 to which the faucet fitting 58 is attached is larger than the outer diameter of the body of the water supply pipe 54, and the tip 54a is inserted to insert the water supply pipe 54 from the indoor side B. There is a case where a relatively large gap is formed between the small hole 53 drilled according to the outer diameter of the water supply pipe and the main body of the water supply pipe. In such a case, even if the lower part of the elbow portion of the water supply pipe 54 is strongly fixed to the indoor side B of the outer wall 51 with the saddle band 55, the faucet fitting fixed to the tip end 54a of the water supply pipe 54
There was a problem that 58 was shaky.

If the water supply pipe 54 is made of HIVP and there is a relatively large gap between the outer peripheral surface of the main body of the water supply pipe 54 and the inner peripheral surface of the small hole 53, the sealing material 57 is connected to the outer wall 51.
When filling from the outdoor side A, there is a possibility that the sealing material 57 may enter the gap between the outer peripheral surface of the water supply pipe 54 main body and the inner peripheral surface of the small hole 53 and enter the indoor side B of the outer wall 51. There is a possibility that the sealing effect of the sealing material 57 is reduced because the installation depth of the sealing material 57 cannot be secured stably.

Further, when the male screw provided on the faucet fitting 58 is screwed and attached to the female screw provided inside the distal end portion 54a of the water supply pipe 54, the water supply pipe 54 is pulled toward the faucet fitting 58 side. There is a possibility that an unnecessary load is applied to the water supply pipe 54.

When the water supply pipe 54 whose outer periphery is covered with a heat insulating material or a dew-proof heat insulating material is inserted into the small hole 53, the water supply pipe
When the leading end 54a of the 54 passes through the small hole 53, the heat insulating material and the heat insulating material are turned up and cannot be inserted. There is a possibility that the heat retaining effect is reduced.

The present invention has been made to solve the above problems, and
The purpose is to provide only one kind of cylindrical through-hole in the wall, which facilitates the drilling operation, and also covers the outer periphery of a pipe with a slightly different outer diameter and outer shape. The elasticity of the elastic body such as the dew-insulating material absorbs the dimensional difference, and the pipe can be fixed firmly. Even when the faucet fitting is screwed into the pipe, there is no danger that the pipe will be pulled toward the faucet fitting and unnecessary load will be applied to the pipe, and the installation depth of the filler such as the sealing material can be stably secured. Another object of the present invention is to provide a pipe fitting capable of maintaining a sealing effect and a pipe fitting structure using the same.

[0013]

According to a first aspect of the present invention, there is provided a pipe fitting comprising: a tubular body; an inner peripheral surface at both end portions of the tubular body; and a predetermined space between both end portions of the tubular body. A plurality of pressing rings protruding from an inner peripheral surface at a position, and a flange body protruding from an outer peripheral surface at one end of the cylindrical body, and the entirety of the cylindrical body is arranged in an axial direction of the cylindrical body. A pipe fitting is characterized in that it can be divided into two parts in parallel to the pipe.

[0014] Further, in the pipe mounting structure using the pipe mounting tool, in the pipe mounting structure for mounting a pipe covered with an elastic body to a wall, the pipe coated with the elastic body is provided in a cylinder of the pipe mounting tool. The pipe fitting is inserted and held by the pressing ring, and the pipe fitting is partially mounted in a through hole provided in the wall so as to press the flange body of the pipe fitting against one wall surface of the wall. The space between the other wall surface of the wall body and the cylindrical body in the through hole is filled with a filler.

The inner diameter of a pressing ring protruding from the inner peripheral surface of the end of the cylindrical body on the side to be filled with the filler is as follows:
It is characterized in that it is configured to be smaller than the inner diameter of a pressing ring protruding from an inner peripheral surface at a predetermined position between both ends of the cylindrical body.

Since the present invention is constructed as described above, it suffices to form only one kind of through hole for inserting the pipe fitting into the wall in one step, and the work of piercing the wall is easy and in a short time. I can do it.

In addition, since the entire pipe body of the pipe fitting is divided into two parts in parallel with the axial direction of the pipe body, even if the outer circumference of the pipe is covered with a relatively thick elastic body, the pair is divided into two parts. By sandwiching the cylindrical body from both sides in the radial direction of the pipe, the pipe covered with the elastic body can be easily inserted into the cylindrical body of the pipe fitting.

Further, a pipe fitting which accommodates a pipe covered with an elastic body such as a heat insulating material or a dehumidifying and heat insulating material is inserted into the inside of the two divided cylinders and is smoothly inserted into the through hole of the wall. Since it can be installed, there is no danger that the elastic body will be turned up when the pipe is inserted into the through hole of the wall, making it impossible to insert it, or that the elastic body will be biased to lower the heat insulating effect and the dew-proof and heat-retaining effect. .

Further, by providing a plurality of pressing rings protruding from the inner peripheral surface of the cylindrical body, when the pipe covered with the elastic body is inserted into and accommodated in the cylindrical body of the pipe fitting which is divided into two parts, The pressure ring can press the elastic body to support the pipe. Then, in this state, the pipe, the elastic body, the pipe fitting, and the through-hole are formed by inserting the cylindrical body of the pipe fitting into the through-hole perforated in the wall body and mounting it by the action of the return elastic force of the elastic body. It is integrally locked, supported and fixed.

Therefore, even if the outer diameter and the outer shape of the pipe are slightly different, the dimensional difference of the outer diameter can be absorbed by the elasticity of the elastic body, and one type of pipe fitting can be applied to a plurality of pipes having different outer diameters. You can do it. Thereby, even when using pipes having different external shapes such as HIVP and VLP, or when arranging a plurality of pipes having different outer diameters, a through hole having the same diameter is formed and one type of pipe fitting is used. Therefore, it can be applied to various pipes with different outer shapes and outer diameters.

Further, the elastic body covering the pipe is pressed by a plurality of pressing rings projecting from the inner peripheral surface at both ends of the cylindrical body and the inner peripheral surface at a predetermined position between both ends of the cylindrical body. By maintaining the elastic force without crushing the elastic body over a range more than necessary, it is possible to maintain a heat insulating effect, a dew-proof and heat retaining effect of the elastic body,
Further, the material volume of the pipe fitting can be reduced, so that the weight and the material cost can be reduced.

Further, when the cylindrical body is inserted into the through hole, a flange body protruding from the outer peripheral surface at one end of the cylindrical body comes into contact with one wall surface of the wall body to regulate the position of the pipe fitting. Then, the pipe fitting can be mounted halfway through the through hole. This makes it possible to secure a space for filling the filler from the other wall surface of the wall in the through hole to the cylindrical body.

Also, the inner diameter of the pressing ring protruding from the inner peripheral surface of the end of the cylindrical body on the side to be filled with the filler is provided on the inner peripheral surface at a predetermined position between both ends of the cylindrical body. By making the inner diameter smaller than the inner diameter of the pressing ring, the end position of the elastic body is regulated by the pressing ring provided on the inner peripheral surface of the end of the cylindrical body on the side where the filler is filled, Since it can shield the body and stably secure the filling depth of the filling material, there is no possibility that the filling material enters the opposite side of the wall when filling the filling material such as the sealing material. The sealing effect of the sealing material can be maintained.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing one embodiment of a pipe fitting according to the present invention and a pipe fitting structure using the pipe fitting. FIG. 1 is a perspective assembly view showing a configuration of a pipe fitting according to the present invention, FIG. 2A is a cross-sectional explanatory view showing a configuration of a pipe fitting according to the present invention, and FIG.
FIGS. 3 (a) to 3 (d) and FIGS. 4 (a) and 4 (b) show the piping of HIVP covered with an elastic body using the piping fixture according to the present invention. 5 (a) to 5 (d) are cross-sectional explanatory views showing a step of attaching a VLP pipe covered with an elastic body to a wall body using the pipe fitting according to the present invention. FIG.

In FIGS. 1 and 2 (a) and 2 (b), 1
Is a pipe fitting according to the present invention, a veranda, a garden, a faucet fitting such as a roof faucet and a faucet fitting and water supply piping such as a roof faucet on the outer wall 2 facing the roof, or a water heater drain pipe,
When the air-conditioner drain tube or the like is mounted with the elastic body 4 such as a heat insulating material or a dew-and-heat insulating material covered on the outer periphery of the pipe 3 on which the air-conditioner drain tube or the like is mounted, the installation can be easily and reliably performed.

The pipe fitting 1 is formed by molding metal, plastic, or the like, so that the entire cylindrical body 1a can be divided into two parts in parallel with the axial direction of the cylindrical body 1a. The cylindrical body 1a has an inner diameter and an outer diameter corresponding to the outer diameter of a pipe 3 having a predetermined outer diameter covered with an elastic body 4 having a predetermined thickness, and is made of an ALC panel, concrete, or the like serving as a wall. It is configured to have an axial length shorter by a predetermined dimension than the thickness of the outer wall 2 (hereinafter, simply referred to as “the length of the cylindrical body 1a”).

The inner peripheral surfaces of both ends of the cylindrical body 1a and the cylindrical body 1a
A plurality of pressing rings 1b, 1c, 1d, 1e having a predetermined height and projecting perpendicular to the inner peripheral surface of the cylindrical body 1a are provided on an inner peripheral surface at a predetermined position between both end portions of the cylindrical body 1a. Have been.

More specifically, the inner diameter of the pressing ring 1b protruding from the inner peripheral surface of the end of the cylindrical body 1a on the side to be filled with a sealing material 5 serving as a filler, which will be described later with reference to FIG. The inner diameter of the pressing ring 1e protruding from the inner peripheral surface of the other end of the cylindrical body 1a and the pressing rings 1c and 1d protruding from the inner peripheral surface at a predetermined position between both ends of the cylindrical body 1a. It is configured to be smaller.

The outer peripheral surface of one end (the end opposite to the side where the sealing material 5 is filled) of the cylindrical body 1a is provided with a predetermined projecting portion orthogonal to the outer peripheral surface of the cylindrical body 1a. Is provided.

A chamfered portion 1g is formed on the outer peripheral surface of the end of the cylindrical body 1a on the side where the sealing material 5 is filled.

As an example of a specific configuration of the pipe fitting 1, for example, the outer diameter of the pipe 3 to be constructed is 30 mm, the thickness of the outer wall 2 is 75 mm, and the diameter of the through hole 2a formed in the outer wall 2 is 6 mm.
When the diameter is 0 mm, the thickness of the entire cylindrical body 1a is 3 mm, and the outer diameter is 5 mm.
9.5mm, length 63mm, pressing ring 1b, 1 of cylindrical body 1a
c, 1d, 1e, thickness 5 mm, inner diameter 34 of pressing ring 1b
mm, inner diameter of press ring 1c, 1d, 1e 38mm, cylindrical body 1
Pressing ring 1b and pressing ring 1c in the longitudinal direction of a
5 mm, the separation distance between the pressing ring 1c and the pressing ring 1d is 20mm, the separation distance between the pressing ring 1d and the pressing ring 1e is 18mm, the thickness of the flange 1f is 3mm, and the outer diameter of the flange 1f is 67.5mm. It is preferable to configure with the following dimensions.

In the above, the outer wall 2 has a thickness of 10
0 mm, the entire length of the cylindrical body 1a is 88 mm, and the pressing ring 1c and the pressing ring 1 in the longitudinal direction of the cylindrical body 1a.
33d, the pressing ring 1d and the pressing ring 1
It is preferable to change the distance from e to 30 mm and make the other dimensions the same.

The inner diameter of the pressure ring 1b is slightly larger than the outer diameter of the portion of the pipe 3 inserted therethrough that faces the pressure ring 1b. It is configured so that clearance can be taken.

The elastic member 4 is made of a polyurethane or styrene synthetic resin foam or the like as a heat insulating material or a dehumidifying and heat insulating material, has a predetermined elastic force, and has at least the pressing rings 1c, 1d and 1e. The outer circumference of the pipe 3 is coated with a thickness that is greater than half the value obtained by subtracting the outer diameter of the pipe 3 from the inner diameter.

A pipe mounting structure according to the present invention using the above-described pipe mounting tool 1 will be described with reference to FIGS. FIGS. 3 and 4 show how a water supply pipe is constructed using an HIVP (impact-resistant vinyl chloride pipe) in which a threaded metal part is inserted inside a tip 3a of a pipe 3 made of a vinyl chloride pipe. FIG. 5 is a diagram showing how a water supply pipe is similarly constructed using a pipe 3 made of VLP (vinyl-lined steel pipe) in which vinyl is coated on the inside of a metal pipe.

When the water supply pipe is constructed by using the HIVP, first, as shown in FIG. 3 (a), the pipe fitting 1 is placed at the position where the faucet fitting 6 of the outer wall 2 which is the wall of the building is to be installed. A cylindrical through hole 2a having a predetermined diameter larger than the outer diameter of the cylindrical body 1a and smaller than the outer diameter of the flange body 1f is pierced using a hole saw or the like.

For example, when the outer diameter of the main body of the pipe 3 is 30 mm and the outer wall 2 has a thickness of 75 mm as in the above-described specific example, the length of the cylindrical body 1a is 63 mm, The outer diameter of the body 1a is 59.5 mm, and the inner diameter of the pressing ring 1b is 34 mm
The through hole 2a is pierced in a columnar shape with a diameter of 60 mm by using the pipe fitting 1 described above.

On the other hand, the distal end portion 3a of the pipe 3 has a larger outer diameter than the outer diameter of the main body of the pipe 3 with a threaded metal part fitted thereinto, as shown in FIG. 3 (b). Then, an elastic body 4 having a predetermined thickness is coated on the outer periphery of the main body of the pipe 3 except for the tip 3a. The elastic body 4 is formed of a member having a predetermined elasticity such as a polyurethane-based or styrene-based synthetic resin foam as a heat insulating material or a dew-and-heat insulating material.

The thickness of the elastic body 4 is larger than at least a half of a value obtained by subtracting the outer diameter of the pipe 3 from the inner diameters of the pressing rings 1c, 1d and 1e of the cylindrical body 1a. For example, the outer diameter of the pipe 3 is 30 mm, and the pressure ring 1
If the inner diameter of c, 1d, 1e is 38 mm, at least 4
It has a thickness of at least mm.

As shown in FIG. 4 (a), when the elastic body 4 is inserted into the through-hole 2a of the outer wall 2 by being sandwiched from both sides in the radial direction of the pipe 3 by the divided cylindrical body 1a. When the rings 1c, 1d, and 1e bite into the elastic body 4 and press the elastic body 4, the return elastic force of the elastic body 4 causes the pipe 3, the elastic body 4, the cylindrical body 1a, and the inner wall surface 2 of the through hole 2a.
and b are made of a material capable of exhibiting a predetermined elastic force to the extent that they are locked and supported and fixed to each other.

Then, as shown in FIG. 3C, the tubular body 1a divided into two is sandwiched and fitted from both sides in the radial direction of the pipe 3 covered with the elastic body 4, and as shown in FIG. ,
The elastic body 4 on the tip surface 3b side of the pipe 3 by the pressing ring 1b
And pressing rings 1c, 1d, 1e
The elastic body 4 is pressed by.

Here, the pressing ring 1b is disposed at the boundary between the main body of the pipe 3 and the tip 3a, and the pressing ring 1e is disposed at the elbow 3c of the pipe 3 covered with the elastic body 4.
Then, as shown in FIG. 3D, the pressing rings 1c, 1c
The elastic body 4 pressed by d and 1e penetrates into the gap between the pressing ring 1b and the pressing ring 1c due to the return elastic force.
It protrudes into the gap between the pressing ring 1c and the pressing ring 1d and the gap between the pressing ring 1d and the pressing ring 1e, respectively. Thereby, the pipe fitting 1 can firmly support and fix the pipe 3 via the elastic body 4 fixed to the pipe 3.

The pressing ring 1c is provided relatively near the pressing ring 1b provided at one end of the cylindrical body 1a, and the pressing ring 1e is provided at the other end of the cylindrical body 1a. By supporting the pipe 3 within a range of substantially the entire length of the cylindrical body 1a, the pipe 3 can be supported relatively stably, and the wobble metal fitting 6 attached to the tip 3a of the pipe 3 described later is suppressed. I can do it. In addition, since the pressing ring 1d is provided substantially at the center between both ends of the cylindrical body 1a, the elastic body 4
Thus, the pipe 3 can be more firmly supported.

Further, since the pipe 3 is sandwiched by two divided cylindrical bodies 1a from both sides in the radial direction and the elastic body 4 is strongly pushed to fix the pipe 3, the outer diameter and the outer shape of the pipe 3 are somewhat Even if they are different (for example, a difference of about 2 to 5 mm in outside diameter), the difference in outside diameter can be absorbed by the elastic body 4. It can be applied to the outer shape pipe 3 and constructed.

Next, as shown in FIG. 4A, the pipe fitting 1 supporting the pipe 3 via the elastic body 4 is inserted into the through hole 2a from the indoor side B of the outer wall 2, and The flange 1f of the fixture 1 is brought into contact with the wall surface 2c on the indoor side B of the outer wall 2.

When the pipe fitting 1 is inserted into the through hole 2a, the pipe 1a is pressed from both sides in the radial direction of the pipe 3 so that the outer diameter of the pipe 1a is smaller than the diameter of the through hole 2a. The body 4 is inserted while being pressed. As shown in FIGS. 2A and 2B, a chamfered portion 1g is formed at the end of the outer peripheral surface of the cylindrical body 1a, so that the cylindrical body 1a is inserted into the through hole 2a along the chamfered portion 1g. It can be easily inserted into

Further, the end of the elastic body 4 on the side of the tip 3a of the pipe 3 is regulated by the pressing ring 1b, and the elastic body 4 is accommodated inside the cylindrical body 1a. When the elastic member 4 is inserted into the hole 2a, the elastic member 4 can be prevented from being turned up or off, and the heat insulating effect, the dew-proof and heat-retaining effect of the elastic member 4 can be reliably maintained.

When the pipe 3 around which the elastic body 4 such as a heat insulating material or a dehumidifying and heat insulating material is wound directly on the outer periphery is directly inserted into the through hole 2a, the through hole 2a is set to be relatively large to provide a margin for insertion. However, in this case, the fixing of the pipe 3 may be slow. However, when the pipe fitting 1 according to the present invention is used, the elastic body 4 is housed inside the cylindrical body 1a, so that a margin for insertion into the through hole 2a is relatively small, thereby fixing the pipe 3. Can be firmly established.

As shown in FIG. 4 (a), when the pipe fitting 1 supporting the pipe 3 via the elastic body 4 is inserted and mounted in the through hole 2a, the return elastic force of the elastic body 4 causes The pipe 3, the elastic body 4, the cylindrical body 1a, and the inner wall surface 2b of the through-hole 2a are mutually locked and supported and fixed. Therefore, there is no need to attach and fix the flange 1f to the outer wall 2 with screws or the like, and it is not necessary to provide a screw hole in the flange 1f, so that the number of working steps can be reduced.

The elasticity of the elastic body 4 absorbs the tolerance between the diameter of the through-hole 2a and the outer diameter of the cylindrical body 1a, and the elasticity of the elastic body 4 always keeps the outer peripheral surface of the cylindrical body 1a at the inner wall surface of the through-hole 2a. 2
Therefore, the position of the pipe fitting 1 can be reliably regulated even if the height of the flange body 1f is relatively small.

As described above, the wall thickness of the outer wall 2 and the length of the through hole 2a are 75 mm, whereas the length of the pipe fitting 1 is 60 mm. With the pipe fitting 1 inserted and mounted, the through hole 2
On the outdoor side A of FIG. 15A, a space from the wall surface 2d of the outer wall 2 to the pressing ring 1b provided at the end of the cylindrical body 1a is 15 mm.
A concave portion 2a1 having a depth of 2 is formed.

When the flange 1f of the pipe fitting 1 comes into contact with the wall 2c of the outer wall 2 on the indoor side B, the outer peripheral surface of the elastic body 4 covering the elbow portion 3c of the pipe 3 is at the same time. The pipe 3 covered with the elastic body 4 is fixed to the outer wall 2 from the indoor side B by using the saddle band 7 and the screw 8 so as to be in contact with the wall surface 2c of the inner side B.

The distal end 3a of the pipe 3 protrudes from a pressing ring 1b provided at the outdoor end of the pipe fitting 1, and the distal end surface 3b of the distal end 3a is a wall 2d of the outer wall 2 on the outdoor side A. And are arranged substantially flush with each other. Therefore,
1 is inserted into the recess 2a1 of the through hole 2a around the tip 3a of the pipe 3.
A cylindrical seal margin space having a depth of 5 mm is formed.

A water-stopping protection member 9 is previously screwed and mounted on a threaded metal part which is provided so as to fit inside the distal end portion 3a of the pipe 3, as shown in FIG. 4 (b). As described above, the sealing material 5 serving as a filler is filled from the outdoor side A into the seal margin space formed by the distal end portion 3a of the pipe 3 and the concave portion 2a1 of the through hole 2a.

At this time, the pressing ring 1b provided at the end of the cylindrical body 1a on the outdoor side A also functions as a partition wall for shielding the elastic body 4 and a bottom wall when the sealing material 5 is filled. Is stably secured, and the sealing effect of the sealing material 5 can be maintained.

When the material of the pipe fitting 1 is made of plastic, even if the bottom surface of the sealing material 5 is in contact with the pressing ring 1b, the sealing material 5 adheres to the pressing ring 1b due to the releasability of the plastic surface. The sealing material 5 can be bonded on two surfaces between the inner wall surface 2b of the through hole 2a and the outer peripheral surface of the tip 3a of the pipe 3 without being sealed. Therefore, it is possible to prevent the sealing material 5 from being cut by the force in three directions when three surfaces are bonded, and to maintain the sealing effect.

Next, a coating 10 is applied by spraying a paint on the surface of the sealing portion formed by the sealing material 5 filled in the wall surface 2d on the outdoor side A of the outer wall 2 and the recess 2a1. By attaching the water-stopping protection member 9 to the distal end portion 3a of the pipe 3 in advance, it is possible to prevent the filled sealing material 5 and paint from entering the pipe 3.

After the coating 10 is completely dried, the water-stopping protection member 9 attached to the tip 3a of the pipe 3 is removed.
As shown in FIG. 4 (b), a faucet fitting 6 is attached to a threaded metal part provided to be fitted inside the distal end portion 3 a of the pipe 3.
Is screwed in and fixed.

At this time, the pipe 3, the elastic body 4 and the pipe fitting 1, which are integrally locked by the return elastic force of the elastic body 4, have the flange 1 f abut the wall surface 2 c on the indoor side B of the outer wall 2. Since the faucet 6 is locked, the piping 3 is not pulled by the faucet 6 when the faucet 6 is screwed into the pipe 3, so that no excessive force is applied to the pipe 3.

Next, the case of using a VLP composed of a metal pipe coated with vinyl on the inside of the pipe 3 will be described with reference to FIG. Note that the same components as those described above are denoted by the same reference numerals, and description thereof is omitted. First, in the same manner as shown in FIG. 3A and described above, a through hole 2a is formed at a position where the faucet fitting 6 is installed on the outer wall 2 serving as a building wall.

On the other hand, when the pipe 3 is a VLP,
As shown in (d), the elbow portion 3c and the distal end portion 3a are separately configured to be separable, and a female screw 3c1 provided inside the distal end portion of the elbow portion 3c, and an indoor side B of the distal end portion 3a. And a male screw 3a1 provided on the outside of the end.

As shown in FIG. 5 (d), the outer circumference of the pipe 3 including a predetermined range on the extension of the elbow 3c corresponding to the tip 3a of the pipe 3 to be connected later, As shown in ()), the elastic body 4 having a predetermined thickness is covered. Since the elastic body 4 is made of a polyurethane-based or styrene-based synthetic resin foam or the like, the elbow portion 3c corresponding to the distal end portion 3a of the pipe 3 is maintained in a predetermined shape.
Are stably arranged in a predetermined range on the extension of the line.

Then, as shown in FIG. 5 (b), the tubular body 1a divided into two is sandwiched and fitted from both radial sides of the pipe 3 covered with the elastic body 4, and the end of the elastic body 4 is pressed by the pressing ring 1b. Parts, and press rings 1c, 1d,
The elastic body 4 is pressed by 1e.

Here, the pressing rings 1b, 1c, 1d are arranged in the outdoor side A direction from the elbow portion 3c of the pipe 3, and the pressing ring 1e is disposed on the elbow portion 3 of the pipe 3 covered with the elastic body 4.
It is arranged corresponding to c.

Next, as shown in FIG. 5C, a pipe 3 is inserted from the indoor side B of the outer wall 2 into the through hole 2a through the elastic body 4.
Is inserted, and the flange 1f of the pipe fitting 1 is brought into contact with the wall 2c of the outer wall 2 on the indoor side B.

In this case as well, the end of the elastic body 4 is regulated by the pressing ring 1b and the elastic body 4 is accommodated in the cylindrical body 1a as described above, so that the pipe fitting 1 is inserted into the through hole 2a. When the elastic member 4 is inserted into the elastic member 4, it is possible to prevent the elastic member 4 from turning up or offset, and to maintain the heat insulating effect, dew-proof and heat-retaining effect of the elastic member 4.

When the pipe fitting 1 is inserted into the through-hole 2a and mounted, the return elastic force of the elastic body 4 causes the pipe 3, the elastic body 4, the cylindrical body 1a and the inner wall surface 2b of the through-hole 2a to mutually move. Locked, supported and fixed.

As described above, the elasticity of the elastic body 4 absorbs the tolerance between the diameter of the through hole 2a and the outer diameter of the cylindrical body 1a, and the return elastic force of the elastic body 4 always causes the cylindrical body 1a.
Is pressed against the inner wall surface 2b of the through hole 2a.

Then, in the same manner as described above, the flange 1f is
Abuts against the wall surface 2c of the indoor side B of the cylindrical body 1a from the wall surface 2d of the outer wall 2 to the outdoor side A of the through hole 2a.
A concave portion 2a1 having a depth of 15 mm and serving as a space portion up to the pressing ring 1b provided at the end of the hole is formed.

When the flange 1f of the pipe fitting 1 comes into contact with the wall 2c on the indoor side B of the outer wall 2, at the same time, the elbow 3
The outer peripheral surface of the elastic body 4 covered with the outer wall 2 a comes into contact with the wall surface 2 c on the indoor side B of the outer wall 2, and the pipe 3 covered with the elastic body 4 using the saddle band 7 and the screw 8 is connected to the outer wall 2.
From the indoor side B.

Then, as shown in FIG. 5D, the distal end 3a connected to the elbow 3c is inserted from the outdoor side A of the outer wall 2 through the inside of the elastic body 4 housed inside the cylindrical body 1a. A female screw inserted and provided inside the end of the elbow 3c
A male screw 3a1 provided on the outside of the end on the indoor side B of the front end 3a is screwed and connected to 3c1 and fixed.

At this time, the elastic body 4 pressed and pressed by the pressing rings 1c, 1d, 1e is moved by the return elastic force to the gap between the pressing ring 1b and the pressing ring 1c and the pressing ring 1c.
It protrudes into the gap between c and the press ring 1d and into the gap between the press ring 1d and the press ring 1e, respectively.

The subsequent construction is the same as described above with reference to FIG. According to this construction method, the same effect as described above can be obtained.
This is advantageous for construction in the case of LP.

Further, one type of pipe fitting 1 and elastic body 4
Therefore, the present invention can be applied to both the HIV 3 and VLP pipes 3 having different outer shapes, and it is not necessary to prepare a plurality of types of pipe fittings 1 and elastic bodies 4 according to the outer diameter and the outer shape of the pipes 3. Points can be reduced, and parts management and construction specifications can be simplified.

The pipe fitting according to the present invention and the pipe mounting structure using the same can be applied not only to the outer wall but also to the inner wall formed of ALC panel or concrete.

[0076]

Since the present invention has the above-described structure and operation, it is not necessary to provide a through hole composed of large and small holes having different diameters in the wall as in the conventional example. Therefore, the drilling work is easy and the construction time can be shortened.

Further, since the entire cylinder of the pipe fitting can be divided into two parts in parallel to the axial direction of the cylinder, even if the pipe is covered with a relatively thick elastic body, a pair of two divided cylinders is used. By sandwiching the body from both sides in the radial direction of the pipe, the pipe covered with the elastic body can be easily inserted and accommodated in the tubular body of the pipe fitting.

Therefore, the pipe covered with an elastic body such as a heat insulating material or a dew-proof heat insulating material can be easily inserted into the pipe fitting by being housed inside the pipe fitting, so that the elastic body is turned up and cannot be inserted as in the conventional example. There is no danger that the elastic body will be offset and the heat insulation effect, the dew prevention and heat retention effect, etc. will be reduced.

Further, by providing a plurality of pressing rings projecting from the inner peripheral surface of the cylindrical body, the pipe covered with the elastic body is inserted into the cylindrical body of the pipe fitting which is divided into two parts. When the elastic body is pressed and held, the pipe body of the pipe fitting is inserted into the through-hole perforated in the wall body and mounted, so that the pipe, the elastic body, and the pipe are attached by the action of the return elastic force of the elastic body. The tool and the through hole are integrally locked and supported and fixed.

As a result, the pipe can be mounted on the wall in a stable state, and wobble of the faucet or the like mounted on the tip of the pipe can be prevented. Therefore, even if the pipe is made of HIVP, the pipe can be securely fixed, and the faucet fitting or the like fixed to the tip of the pipe does not fluctuate as in the conventional example.

The elastic body covering the pipe is pressed by a plurality of pressing rings projecting from the inner peripheral surface at both ends of the cylindrical body and the inner peripheral surface at predetermined positions between both ends of the cylindrical body. By doing so, the elastic body can be maintained while maintaining the elastic force without being crushed over an unnecessary range, and the elastic body can have its heat insulating effect, dew proofing and heat retaining effect, and further, piping By reducing the material volume of the fixture, weight reduction and material cost reduction can be achieved.

Further, even if the outer diameter and the outer shape of the pipe are slightly different, the dimensional difference of the outer diameter can be absorbed by the elasticity of the elastic body. Since the present invention can be applied to an outer shape pipe, the number of parts can be reduced.

Therefore, even when arranging a plurality of pipes having different outer diameters and outer shapes such as VLPs and HIVPs, a through hole having the same diameter is formed, and various types of pipes having different outer diameters and outer shapes are formed by one type of pipe fitting. The work efficiency can be improved because it can be applied to common piping and can be constructed with common specifications.

Further, the length of the tubular body of the pipe fitting is made shorter than the length of the through hole provided in the wall body, and a flange body is provided so as to protrude from the outer peripheral surface at one end of the tubular body. With this, when the tubular body housing and holding the pipe covered with the elastic body is inserted into the through hole, the flange comes into contact with one wall surface of the wall body to regulate the position of the pipe fitting, and penetrate the pipe fitting. Can be installed halfway through the hole.

Thus, it is possible to reliably form a concave portion having a predetermined depth on the opposite side of the through hole from the flange body to secure a space for filling the filler. Therefore, the pipe fitting does not enter the depth of the through-hole, and the work can be performed on a fixed basis regardless of the operator. In addition, since the flange body abuts on one wall surface of the wall body and is locked, when the faucet fitting or the like is screwed into the tip end of the piping as in the related art, the piping is pulled toward the faucet fitting side and the piping is pulled. There is no fear that an unnecessary load is applied to the pipe, and the maintenance of the pipe can be ensured.

The inner diameter of the pressing ring protruding from the inner peripheral surface of the end of the cylindrical body on which the filler is to be filled is provided on the inner peripheral surface at a predetermined position between both ends of the cylindrical body. By making the inner diameter smaller than the inner diameter of the press ring, the end position of the elastic body is regulated by the press ring protruding from the inner peripheral surface of the end of the cylindrical body on the side where the filler is filled, and the filler is also filled. And the elastic body can be shielded, and the filling depth of the filler can be secured. Accordingly, when the sealing material serving as the filler is filled, there is no possibility that the sealing material enters the opposite side of the wall, and the sealing effect of the sealing material can be maintained.

[Brief description of the drawings]

FIG. 1 is a perspective assembly view showing a configuration of a pipe fitting according to the present invention.

FIG. 2A is a cross-sectional explanatory view showing a configuration of a pipe fitting according to the present invention, and FIG. 2B is a view seen from the left side of FIG.

3 (a) to 3 (d) are cross-sectional explanatory views showing steps of attaching a pipe of HIVP covered with an elastic body to a wall using the pipe fitting according to the present invention.

FIGS. 4 (a) and 4 (b) are cross-sectional explanatory views showing a step of attaching a pipe of HIVP covered with an elastic body to a wall using the pipe fitting according to the present invention.

FIGS. 5A to 5D are cross-sectional explanatory views showing a main part of a process of attaching a VLP pipe covered with an elastic body to a wall using the pipe fitting according to the present invention.

FIG. 6 is a diagram illustrating a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Piping fixture 1a ... Cylinder 1b-1e ... Pressing ring 1f ... Flange 1g ... Chamfered part 2 ... Outer wall 2a ... Through hole 2a1 ... Concave part 2b ... Inner wall 2c, 2d ... Wall 3 ... Piping 3a ... Tip 3a1 ... male screw 3b ... tip surface 3c ... elbow part 3c1 ... female screw 4 ... elastic body 5 ... sealing material 6 ... faucet metal fitting 7 ... saddle band 8 ... screw 9 ... water stop protection member 10 ... painting A ... outdoor side B … Indoor side

Claims (3)

[Claims] 1. A cylindrical body, a plurality of pressing rings projecting from inner circumferential surfaces of both ends of the cylindrical body and an inner circumferential surface at a predetermined position between both ends of the cylindrical body, A flange body protruding from an outer peripheral surface of one end of the pipe body, the pipe body being configured so that the entirety of the cylindrical body can be divided into two parts in parallel with the axial direction of the cylindrical body. 2. A pipe mounting structure for attaching a pipe covered with an elastic body to a wall body, wherein the pipe covered with the elastic body is inserted into the cylinder of the pipe fitting according to claim 1, and the pressing ring is provided. The pipe fitting is mounted halfway through a through-hole provided in the wall so that the flange body of the pipe fitting is pressed against one wall surface of the wall, and the wall in the through-hole is held A pipe mounting structure, characterized in that a space from the other wall surface of the body to the cylindrical body is filled with a filler. 3. An inner diameter of a pressing ring protruding from an inner peripheral surface of an end portion of the cylindrical body on a side to be filled with the filler material is provided on an inner peripheral surface at a predetermined position between both ends of the cylindrical body. 3. The pipe mounting structure according to claim 2, wherein the pipe mounting structure is configured to be smaller than an inner diameter of the protruding pressing ring.