JP6820722B2 - Piping structure and construction method of piping structure - Google Patents

Description

The present invention relates to a piping structure and a method of constructing a piping structure.

For most of the water and hot water supply pipes in a single dwelling unit such as an apartment house, flexible resin pipe materials such as cross-linked polyethylene pipes and polybuden pipes are used. The joints connected to such pipe materials include joints that can be attached to resin pipes with a single touch, joints that can be attached to pipe materials by tightening with bag nuts or caulking cores, and joints that can be attached to pipe materials by welding. Etc. are used.
The quality of the connection between the pipe material and the joint at the site often depends on the skill of the operator, and if the connection between the pipe material and the joint is poor, it may cause water leakage. For this reason, a method is used in which a prefabricated pipe in which a pipe material and a joint are connected in advance is manufactured at a factory, and the prefabricated pipe is laid at the site after undergoing a pressure inspection or the like.

By the way, as a piping structure for water / hot water supply piping, there is known a piping structure that is laid inside the ceiling of a building and connected to equipment through the inside of a wall (see, for example, Patent Document 1). However, if the beam is provided inside the ceiling of the building, there may be no space for laying the pipe under the beam. In such a case, the pipe may be inserted into the sleeve formed on the beam.

Japanese Unexamined Patent Publication No. 2014-2015

However, when laying the prefabricated pipe, if the prefabricated pipe is provided with a branch joint, there is a problem that the pipe connected to the branch joint interferes and cannot be inserted into the sleeve. If the pipe is a flexible resin pipe, it is conceivable to bend the pipe and insert it into the sleeve, but the locally bent part buckles and the pressure resistance performance deteriorates, causing water leakage. There is a risk.
Further, the minimum radius when bending the resin tube is about 150 mm, but in order to bend the resin tube with the minimum radius or more in the sleeve, the diameter of the sleeve needs to be 200 mm or more. However, considering the strength of the beam, it is often difficult to provide the beam with a sleeve of 200 mm or more.

For this reason, when a branch joint is provided in the prefabricated pipe, the integral pipe is cut in the vicinity of the branch joint at the site, and the pipe on the side opposite to the side where the branch joint is provided is passed through the sleeve, and then a new joint is used. (Socket) is provided and reconnected. However, there is a problem that such work takes time and labor, and the quality of the connection portion depends on the skill of the operator.

Therefore, an object of the present invention is to provide a pipe structure and a method of constructing a pipe structure, which can easily construct a prefabricated pipe with stable quality.

In order to achieve the above object, the piping structure according to the present invention is formed on the beam of the laying target area in the piping structure of the prefabricated pipe to be laid in the laying target area after the pipe material and the joint are connected in advance. The first prefabricated pipe has a sleeve penetrating pipe material capable of penetrating the sleeve , a plurality of resin pipes, and a joint for connecting the resin pipes, and the first prefabricated pipe is closer to the water supply source than the second prefabricated pipe. It is characterized by being arranged in .

Further, in the method of constructing a piping structure according to the present invention, in the method of constructing a piping structure in which a prefabricated pipe in which a pipe material and a joint are previously connected is laid in a target area for laying, a sleeve formed on a beam in the target area for laying. The first prefabricated pipe, which has a sleeve penetrating pipe material capable of penetrating the sleeve , a plurality of resin pipes, and a joint for connecting the resin pipes, and is located on the water supply source side, is provided from one side of the sleeve penetrating direction. The first prefabricated pipe installation step of arranging the sleeve so as to penetrate the sleeve penetrating pipe material and the second prefabricated pipe having the connecting pipe material connected to the sleeve penetrating pipe material are placed on the other side of the sleeve penetrating direction. It is characterized by having a second prefabricated pipe arranging step of arranging on the side and a connecting step of connecting the sleeve penetrating pipe material and the connecting pipe material with a connecting member.

In the present invention, the sleeve penetrating pipe material of the first prefabricated pipe is passed through the sleeve and then connected to the connecting pipe material of the second prefabricated pipe with a connecting member, so that the prefabricated pipe is connected even if there is a sleeve in the laying target area. Can be easily laid. Further, since the sleeve penetrating pipe material of the first prefabricated pipe and the connecting pipe material of the second prefabricated pipe are connected by a connecting member, the first prefabricated pipe and the second prefabricated pipe can be easily connected with stable quality. Can be connected to.
Since the on-site joint between the first prefabricated pipe and the second prefabricated pipe serves as the joint between the sleeve penetrating pipe material and the connecting pipe material, the on-site joint can be made of highly reliable and high quality.

Further, in the piping structure according to the present invention, the sleeves may be arranged in the lateral direction.

According to the present invention, the prefabricated pipe can be easily constructed with stable quality.

It is a figure which shows the piping structure which concerns on 1st Embodiment of this invention. It is sectional drawing explaining the sleeve penetrating pipe material and the connecting pipe material in 1st Embodiment. It is a top view explaining the sleeve penetrating pipe material and the connecting pipe material in 1st Embodiment. It is a top view explaining the connected sleeve through pipe material and the connecting pipe material in 1st Embodiment. It is a figure which shows the connection process of a sleeve penetrating tube material and a connecting tube material by a connecting member. It is a figure which shows the connection process of the sleeve penetrating pipe material and the connecting pipe material by the connecting member following FIG. It is a figure which shows the piping structure which concerns on 2nd Embodiment of this invention. It is sectional drawing explaining the sleeve penetrating pipe material and the connecting pipe material in 2nd Embodiment. It is a top view explaining the sleeve penetrating pipe material and the connecting pipe material in 2nd Embodiment. It is a top view explaining the connected sleeve through tube material and the connection tube material in 2nd Embodiment.

(First Embodiment)
Hereinafter, the piping structure and the construction method of the piping structure according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6.
As shown in FIG. 1, the pipe structure 1A according to the first embodiment is adopted for the water supply pipe 11 of the pre-branch type apartment house. The water supply pipe 11 is branched inside the ceiling (above the ceiling) 12 of the apartment house, and each of the branched pipes passes through the wall portion (not shown) of the apartment house to the equipment 13 arranged under the ceiling. Be connected. For example, a reinforced concrete beam 14 is provided inside the ceiling 12 of an apartment house, and the water supply pipe 11 is designed to be inserted into a sleeve 15 penetrating the beam 14.

The piping structure 1A includes a first prefabricated piping 2, a second prefabricated piping 3, and a connecting member 4 that connects the first prefabricated piping 2 and the second prefabricated piping 3.
The first prefabricated pipe 2 and the second prefabricated pipe 3 show a pipe in which a resin pipe (pipe material) 5 and a joint 6 such as a branch joint or a connection joint are connected, and the resin pipe 5 and the joint 6 are connected. Before being laid at the laying site, they are connected in advance at a factory or the like. The first prefabricated pipe 2 and the second prefabricated pipe 3 are laid and connected to each other so that the water supply pipe 11 is laid. The first prefabricated pipe 2 and the second prefabricated pipe 3 may have undergone pressure inspection or the like before being delivered to the site.

The first prefabricated pipe 2 is arranged on the upstream side of the second prefabricated pipe 3, and is configured so that the water supply source 16 is connected to the first prefabricated pipe 2.
The first prefabricated pipe 2 has a sleeve penetrating pipe material 7 capable of penetrating the sleeve 15 at the downstream end.
The first prefabricated pipe 2 is arranged so that the sleeve penetrating pipe material 7 penetrates the sleeve 15 from one side in the penetrating direction of the sleeve 15. The resin pipe 5 and the joint 6 other than the sleeve penetrating pipe material 7 of the first prefabricated pipe 2 are arranged on one side of the sleeve 15 in the penetrating direction.

In the second prefabricated pipe 3, a connecting pipe material 8 connected to the sleeve penetrating pipe material 7 is connected to the upstream end. The connecting pipe material 8 is composed of a T-shaped three-way branch joint.
The second prefabricated pipe 3 is arranged on the other side of the sleeve 15 in the penetrating direction.
In the sleeve penetrating pipe material 7 and the connecting pipe material 8, the first prefabricated pipe 2 is arranged inside the ceiling 12, the sleeve penetrating pipe 7 is inserted into the sleeve 15, and the second prefabricated pipe 3 is inside the ceiling. After being placed at 12, they are connected in the field.

As shown in FIGS. 2 and 3, the sleeve penetrating tube material 7 has an axis extending linearly. The sleeve penetrating pipe material 7 is formed on one side in the axial direction on the upstream side, penetrates the sleeve 15 (see FIG. 1), and is connected to the resin pipe 5 (see FIG. 1) of the first prefabricated pipe 2. It has a connecting portion 71 and a connecting pipe material connecting portion 72 formed on the other side in the axial direction on the downstream side and connected to the connecting pipe material 8. The resin pipe 5 is, for example, a cross-linked polyethylene pipe, and includes a heat-retaining outer skin made of a foam.

The resin pipe connecting portion 71 is arranged outside the resin pipe inserting portion 711 inserted into the resin pipe 5 and the resin pipe inserting portion 711, and surrounds the resin pipe 5 inserted into the resin pipe inserting portion 711. It has a part 712 and. The resin pipe 5 into which the resin pipe insertion portion 711 is inserted is surrounded by the resin pipe surrounding portion 712 and crimped so that the resin pipe 5 is firmly connected to the resin pipe connecting portion 71.

The connecting pipe material connecting portion 72 is formed on one side (resin pipe connecting portion 71 side) in the axial direction of the outer peripheral surface of the connecting pipe material inserting portion 721 inserted into the connecting pipe material 8 and the connecting pipe material inserting portion 721 from the entire circumferential direction. It has a flange 722 that projects outward in the radial direction, and two О rings 723 and 723 that are arranged so as to surround the connecting pipe material insertion portion 721.
The connecting pipe material inserting portion 721 is configured to be insertable into the first connecting portion of the connecting pipe material 8. In the connecting pipe material insertion portion 721, two groove portions 721a extending in the entire circumferential direction are formed on the outer peripheral portion at intervals in the axial direction. О rings 723 and 723 are arranged in the two grooves 721a and 721a, respectively.
On the outer peripheral surface of the connecting pipe material connecting portion 72, a diameter-expanded portion 724 whose diameter is expanded at intervals from the flange 722 is formed on one side of the flange 722 in the axial direction, and between the flange 722 and the diameter-expanded portion 724. An outer peripheral groove portion 725 is formed.

The connecting pipe material 8 has a tubular base 81 arranged in the center, a sleeve penetrating pipe material connecting portion 82 coaxially connected to the base 81 on one side of the base 81 in the axial direction, and the other side of the base 81 in the axial direction. It has a first resin pipe connecting portion 83 coaxially connected to the base portion 81, and a second resin pipe connecting portion 84 connected to an intermediate portion in the axial direction of the base portion 81 so as to be orthogonal to the base portion 81. ..
The sleeve penetrating pipe material connecting portion 82 is configured so that the connecting pipe material connecting portion 72 of the sleeve penetrating pipe material 7 can be connected, and the first resin pipe connecting portion 83 and the second resin pipe connecting portion 84 are the resin pipes of the second prefabricated pipe 3. 5 is configured to be connectable.

The sleeve penetrating pipe material connecting portion 82 is formed with a sleeve penetrating pipe material inserting portion 821 into which the connecting pipe material inserting portion 721 of the sleeve penetrating pipe material 7 can be inserted from one side in the axial direction. A flange 822 is formed on one edge of the outer peripheral surface in the axial direction so as to project radially outward from the entire circumferential direction.
On the outer peripheral surface of the sleeve penetrating pipe material connecting portion 82, a diameter-expanded portion 823 whose diameter is expanded at intervals from the flange 822 is formed on the other side of the flange 822 in the axial direction, and between the flange 822 and the diameter-expanded portion 823. An outer peripheral groove portion 824 is formed in the outer peripheral groove portion 824.

The first resin pipe connecting portion 83 is arranged outside the resin pipe inserting portion 831 inserted into the resin pipe 5 and the resin pipe inserting portion 831, and surrounds the resin pipe 5 into which the resin pipe inserting portion 831 is inserted. It has a pipe surrounding portion 832. The resin pipe 5 into which the resin pipe insertion portion 831 is inserted is surrounded by the resin pipe surrounding portion 832 and crimped so that the resin pipe 5 is firmly connected to the first resin pipe connecting portion 83. ..
The second resin pipe connecting portion 84 is arranged outside the resin pipe inserting portion 841 inserted into the resin pipe 5 and the resin pipe inserting portion 841, and surrounds the resin pipe 5 into which the resin pipe inserting portion 841 is inserted. It has a pipe surrounding portion 842 and. The resin pipe 5 into which the resin pipe insertion portion 841 is inserted is surrounded by the resin pipe surrounding portion 842 and crimped so that the resin pipe 5 is firmly connected to the second resin pipe connecting portion 84. ..

As shown in FIG. 4, the sleeve penetrating pipe material 7 and the connecting pipe material 8 are connected to each other when the connecting pipe material inserting portion 721 of the sleeve penetrating pipe material 7 is inserted into the sleeve penetrating pipe material inserting portion 821 of the connecting pipe material 8. And the sleeve penetrating pipe material insertion portion 821 are fitted to each other, and the flange 722 of the connecting pipe material connecting portion 72 and the flange 822 of the sleeve penetrating pipe material connecting portion 82 are in contact with each other. Further, the О rings 723 and 723 surrounding the connecting pipe material inserting portion 721 of the sleeve penetrating pipe material 7 are pressed against the connecting pipe material inserting portion 721 and the sleeve penetrating pipe material inserting portion 821, and the connecting pipe material inserting portion 721 and the sleeve penetrating pipe material inserting portion 721 are pressed. The water stoppage between 821 and 821 is ensured.

As shown in FIGS. 5 and 6, the connecting member 4 is composed of a fastener clip that integrally sandwiches and connects the sleeve penetrating pipe material 7 and the connecting pipe material 8. The connecting member 4 is a member formed by bending an elastically deformable steel plate or the like, and is a connection that comes into contact with the connecting pipe material inserting portion 721 of the sleeve penetrating pipe material 7 when it is inserted into the sleeve penetrating pipe material inserting portion 821 of the connecting pipe material 8. An engaging groove 41 into which the flange 722 of the pipe material connecting portion 72 and the flange 822 of the sleeve penetrating pipe material connecting portion 82 are fitted is formed. Further, in the connecting member 4, the plate portions 42 on both sides of the engaging groove portion 41 are formed on the outer peripheral surface of the outer peripheral groove portion 725 formed on the outer peripheral surface of the connecting pipe material connecting portion 72 and the outer peripheral surface of the sleeve penetrating pipe material connecting portion 82. It is configured to be arranged in the groove 824.

Next, the construction method of the piping structure of the present embodiment will be described.
First, the first prefabricated pipe 2 and the second prefabricated pipe 3 are manufactured at the factory.
The sleeve penetrating pipe material 7 is manufactured in a state of being connected to the first prefabricated pipe 2 at the manufacturing stage at the factory.

The manufactured first prefabricated pipe 2 and second prefabricated pipe 3 are carried into the inside 12 of the ceiling and laid.
The first prefabricated pipe 2 is arranged on one side of the beam 14 (one side in the penetrating direction of the sleeve 15), and the sleeve penetrating pipe material 7 of the first prefabricated pipe 2 is inserted into the sleeve 15 from one side of the beam 14. The connecting pipe material connecting portion 72 of the sleeve penetrating pipe material 7 is projected to the other side of the beam 14 (first prefabricated pipe installation step).
Before and after the first prefabricated pipe installation process, the second prefabricated pipe 3 is arranged on the other side of the beam 14 (the other side in the penetrating direction of the sleeve 15) (second prefabricated pipe arrangement process).
At this time, the resin pipe 5 and the joint 6 of the first prefabricated pipe 2 and the second prefabricated pipe 3 are appropriately fixed to the inside 12 of the ceiling with a support member (not shown).

Subsequently, the sleeve penetrating pipe material 7 and the connecting pipe material 8 are connected by the connecting member 4 (connecting step).
The sleeve penetrating pipe material 7 inserted into the sleeve 15 is connected to the connecting pipe material 8 of the second prefabricated pipe 3. To connect the sleeve penetrating pipe material 7 and the connecting pipe material 8, first, the connecting pipe material inserting portion 721 of the sleeve penetrating pipe material 7 is inserted into the sleeve penetrating pipe material inserting portion 821 of the connecting pipe material 8 and fitted. At this time, the flange 722 of the connecting pipe material connecting portion 72 and the flange 822 of the sleeve penetrating pipe material connecting portion 82 are brought into contact with each other.

The connecting member 4 is attached to the sleeve penetrating pipe material 7 and the connecting pipe material 8 in which the flange 722 of the connecting pipe material connecting portion 72 and the flange 822 of the sleeve penetrating pipe material connecting portion 82 are in contact with each other.
The flange 722 of the connecting pipe material connecting portion 72 and the flange 822 of the sleeve penetrating pipe material connecting portion 82 are fitted into the engaging groove portion 41 of the connecting member 4. Further, the outer peripheral groove portions 725 formed on the outer peripheral surface of the connecting pipe material connecting portion 72 with the plate portions 42 on both sides of the engaging groove portion 41 of the connecting member 4 and the outer peripheral groove portion 824 formed on the outer peripheral surface of the sleeve penetrating pipe material connecting portion 82. Place in. As a result, the sleeve penetrating pipe material 7 and the connecting pipe material 8 are connected by the connecting member 4.
In this way, the first prefabricated pipe 2 and the second prefabricated pipe 3 are connected.
After that, the joints attached at the factory to the downstream end of the first prefabricated pipe 2 and the downstream end of the second prefabricated pipe 3 are connected to the water supply joint for the equipment 13. A water leakage test is performed, and if there is no problem, a joint attached at the upstream end of the first prefabricated pipe 2 is connected to the water supply source 16 (for example, a water heater or a water supply pipe).

Next, the operation and effect of the piping structure and the construction method of the piping structure according to the first embodiment of the present invention described above will be described with reference to the drawings.
In the piping structure and the construction method of the piping structure according to the first embodiment of the present invention described above, after the sleeve penetrating pipe material 7 of the first prefabricated pipe 2 is passed through the sleeve 15, the connecting pipe material 8 of the second prefabricated pipe 3 is used. By connecting with and a connecting member, the prefabricated pipe can be easily laid even when the sleeve 15 is in the laying target area. Further, since the sleeve penetrating pipe material 7 of the first prefabricated pipe 2 and the connecting pipe material 8 of the second prefabricated pipe 3 are connected by a connecting member, the first prefabricated pipe 2 and the second prefabricated pipe 3 Can be easily connected with stable quality.
The resin pipe 5 and the joint (sleeve through pipe material 7, connecting pipe material 8) are not connected at the construction site, and the on-site joint between the first prefabricated pipe 2 and the second prefabricated pipe 3 is connected to the sleeve through pipe material 7. Since it is a joint with the pipe material 8, the on-site joint can be made of highly reliable and high quality.

Further, since the connecting pipe material 8 is a three-way branch joint, if the connecting pipe material 8 is provided in the vicinity of the sleeve 15, the pipe can be easily branched in the vicinity of the sleeve 15.
Further, since the connecting member 4 is a fastener clip, the sleeve penetrating pipe material 7 and the connecting pipe material 8 can be easily and surely connected by the connecting member 4. Further, since the fastener clip can be easily attached to and detached from the connection portion between the sleeve penetrating pipe material 7 and the connecting pipe material 8, inspection performed by removing the sleeve penetrating pipe material 7 and the connecting pipe material 8 (for example, inspection of the О ring 723). Can be easily performed. Further, since the mounting state of the connecting member 4 can be easily visually confirmed, it is possible to easily determine the mounting defect of the connecting member 4.

(Second Embodiment)
Next, the second embodiment of the present invention will be described with reference to the accompanying drawings, but the same or similar members and parts as those of the above-mentioned first embodiment will be described by using the same reference numerals, and the description will be omitted. A configuration different from the embodiment will be described.
As shown in FIG. 7, in the piping structure 1B according to the second embodiment, the connecting pipe material 8B of the second prefabricated pipe 3B is composed of a straight tubular connecting joint instead of the three-way branch joint as in the first embodiment. Has been done. Further, in the second embodiment, the form of the sleeve penetrating pipe material 7B of the first prefabricated pipe 2B is different from that of the sleeve penetrating pipe material 7 of the first embodiment.

As shown in FIGS. 8 and 9, the connecting pipe material 8B is formed on one side in the axial direction and is connected to the connecting pipe material connecting portion 73 of the sleeve penetrating pipe material 7B on the sleeve penetrating pipe material connecting portion 85 and on the other side in the axial direction. It has a resin pipe connecting portion 86 which is formed and is connected to the resin pipe 5 of the second prefabricated pipe 3B.

The sleeve penetrating pipe material connecting portion 85 is formed on the other side of the sleeve penetrating pipe material inserting portion 851 inserted into the connecting pipe material inserting portion 731 of the connecting pipe material connecting portion 73 and the outer peripheral surface of the sleeve penetrating pipe material inserting portion 851 in the axial direction. It has a flange 852 that protrudes radially outward from the entire direction, and two О rings 835 and 853 arranged so as to surround the sleeve penetrating pipe material insertion portion 851.
The sleeve penetrating pipe material insertion portion 851 is configured so that the connecting pipe material connecting portion 73 of the sleeve penetrating pipe material 7B can be inserted. In the sleeve penetrating pipe material insertion portion 851, two groove portions 851a and 851a extending in the entire circumferential direction are formed on the outer peripheral portion at intervals in the axial direction. О rings 835 and 853 are arranged in the grooves 851a and 851a, respectively.
On the outer peripheral surface of the sleeve penetrating pipe material connecting portion 85, a diameter-expanded portion 854 whose diameter is expanded at intervals from the flange 852 is formed on the other side of the flange 852 in the axial direction, and between the flange 852 and the diameter-expanded portion 823. An outer peripheral groove portion 855 is formed in the outer peripheral groove portion 855.

The resin pipe connecting portion 86 is a resin pipe inserting portion 861 inserted into the resin pipe 5 (see FIG. 7) and a resin pipe 5 arranged outside the resin pipe inserting portion 861 and into which the resin pipe inserting portion 861 is inserted. It has a resin pipe surrounding portion 862 that surrounds it. The resin pipe 5 into which the resin pipe insertion portion 861 is inserted is surrounded by the resin pipe surrounding portion 862 and crimped so that the resin pipe 5 is firmly connected to the resin pipe connecting portion 86.

The sleeve penetrating pipe material 7 has a resin pipe connecting portion 71 similar to that of the first embodiment, and a connecting pipe material connecting portion 73 having a different form from the connecting pipe material connecting portion 72 of the first embodiment. The connecting pipe material connecting portion 73 is formed with a connecting pipe material inserting portion 731 into which the sleeve penetrating pipe material inserting portion 851 of the sleeve penetrating pipe material connecting portion 85 can be inserted. The connecting pipe material connecting portion 73 is formed with a flange 732 that projects radially outward from the entire circumferential direction at the edge portion on the other side of the outer peripheral surface in the axial direction.
On the outer peripheral surface of the connecting pipe material connecting portion 73, a diameter-expanded portion 733 whose diameter is expanded at intervals from the flange 722 is formed on one side of the flange 732 in the axial direction, and between the flange 732 and the diameter-expanded portion 733. An outer peripheral groove portion 734 is formed.

As shown in FIG. 10, the connection between the sleeve penetrating pipe material 7B and the connecting pipe material 8B in the method of constructing the piping structure according to the second embodiment is such that the sleeve penetrating pipe material 8B is inserted into the connecting pipe material insertion portion 731 of the sleeve penetrating pipe material 7B. It is inserted into the portion 851 and fitted. At this time, the flange 732 of the connecting pipe material connecting portion 73 and the flange 852 of the sleeve penetrating pipe material connecting portion 85 are brought into contact with each other.
Subsequently, the flange 732 of the connecting pipe material connecting portion 73 and the flange 852 of the sleeve penetrating pipe material connecting portion 85 are fitted into the engaging groove portion 41 of the connecting member 4. Further, the outer peripheral groove portions 734 formed on the outer peripheral surface of the connecting pipe material connecting portion 73, and the outer peripheral groove portion 855 formed on the outer peripheral surface of the sleeve penetrating pipe material connecting portion 85, with the plate portions 42 on both sides of the engaging groove portion 41 of the connecting member 4 formed. Place in. As a result, the sleeve penetrating pipe material 7B and the connecting pipe material 8B are connected by the connecting member 4.

Further, when the sleeve penetrating pipe material 7B and the connecting pipe material 8B are connected, the О rings 835 and 853 surrounding the sleeve penetrating pipe material inserting portion 851 are pressed against the connecting pipe material inserting portion 731 and the sleeve penetrating pipe material inserting portion 851. Water stoppage is ensured between the connecting pipe material inserting portion 731 and the sleeve penetrating pipe material inserting portion 851.
In this way, the first prefabricated pipe 2B and the second prefabricated pipe 3B are connected.

The piping structure 1B and the construction method of the piping structure according to the second embodiment have the same effects as those of the first embodiment. Further, it can be adopted when the pipe is not branched in the vicinity of the sleeve 15.

Although the embodiment of the piping structure and the method of constructing the piping structure according to the present invention has been described above, the present invention is not limited to the above embodiment and can be appropriately changed without departing from the spirit of the present invention.
For example, in the above embodiment, the sleeve penetrating tube members 7, 7B are inserted into the sleeve 15 from one side in the penetrating direction of the sleeve 15, and are connected to the connecting tube members 8, 8B on the other side in the penetrating direction of the sleeve 15. However, the sleeve penetrating tube members 7, 7B may be inserted into the sleeve 15 from the other side of the sleeve 15 in the penetrating direction and connected to the connecting tube members 8, 8B on one side of the sleeve 15 penetrating direction. In the first embodiment, the first prefabricated pipe 2 side may be the connecting pipe material 8, 8B, and the second prefabricated pipe 3B side may be the sleeve penetrating pipe material 7, 7B.
Further, although the piping structures 1A and 1B of the above embodiment are adopted for the water supply piping 11, they may be adopted for the hot water supply piping.
Further, although the piping structures 1A and 1B of the above-described embodiment are adopted for the tip branch type piping, they may be adopted for the header type piping.

Further, in the above embodiment, the connecting member 4 is a fastener clip, but a method other than the housing type such as the fastener clip, for example, a union type, a flange type, or a mechanical type may be used.
Further, a form in which the sleeve penetrating pipe materials 7, 7B and the connecting pipe materials 8, 8B are fitted (the connecting pipe material connecting portions 72, 73 of the sleeve penetrating pipe materials 7, 7B and the sleeve penetrating pipe material insertion portions 821, 851 of the connecting pipe materials 8, 8B). The form) may be other than the above. For example, a highly reliable coupler or the like may be used.
Further, in the above embodiment, the sleeve penetrating pipe materials 7 and 7B are manufactured in advance so as to be incorporated into the first prefabricated pipes 2 and 2B at a factory or the like, but the sleeve penetrating pipes 2 and 2B of the first prefabricated pipes 2 and 2B Members other than the pipe materials 7 and 7B and the sleeve penetrating pipe materials 7 and 7B may be connected at the site.
The positions of the sleeve penetrating pipe members 7, 7B and the connecting pipe materials 8, 8B do not have to be in the vicinity of the sleeve 15. The sleeve penetrating pipes 7 and 7B may be passed through the sleeve 15 and connected to the connecting pipes 8 and 8B near the equipment 13.

Further, in the above embodiment, the pipe material of the first prefabricated pipe and the second prefabricated pipe is a resin pipe, but it may be other than the resin pipe.
Further, one of the sleeve penetrating pipe materials 7 and 7B and the connecting pipe materials 8 and 8B uses a resin pipe coated with a bellows pipe, the bellows pipe is supported and fixed to a support member, and the resin pipe is a bellows pipe. It may be configured to be movable in the axial direction inside. By doing so, when the pressure inspection is performed without the fastener clip of the connecting member 4 attached, the resin pipe moves by the axial force and the connecting portion is pulled out, so that an abnormality can be easily detected. it can. In general, when the resin pipe is directly supported and fixed to the support member, the movement in the axial direction is restrained and the rigidity of the resin pipe itself suppresses the disconnection of the connecting portion even if the fastener clip is not attached, which is abnormal. May not be detected.

1A, 1B Piping structure 2,2B 1st prefabricated piping 3,3B 2nd prefabricated piping 4 Connection member 5 Resin pipe (pipe material)
6 Fittings 7,7B Sleeve penetration pipe material 8,8B Connection pipe material 11 Water supply piping 14 Beam 15 Sleeve

Claims (3)

In the piping structure of prefabricated piping that is laid in the area to be laid after the pipe material and the joint are connected in advance.
A first prefabricated pipe having a sleeve penetrating pipe material capable of penetrating a sleeve formed through a beam in the laying target area , a plurality of resin pipes, and a joint for connecting the resin pipes .
A second prefabricated pipe having a connecting pipe material that can be connected to the sleeve penetrating pipe material,
It has a connecting member for connecting the sleeve penetrating pipe material and the connecting pipe material ,
The first prefabricated pipe has a piping structure characterized in that the first prefabricated pipe is arranged on the water supply source side of the second prefabricated pipe. The piping structure according to claim 1, wherein the sleeve is arranged in the lateral direction . In the construction method of the piping structure in which the prefabricated piping in which the pipe material and the joint are connected in advance is laid in the laying target area.
A first unit having a sleeve penetrating pipe material capable of penetrating a sleeve formed through a beam in the laying target area, a plurality of resin pipes, and a joint for connecting the resin pipes, and located on the water supply source side . The first prefabricated pipe installation step of arranging the prefabricated pipe so as to allow the sleeve penetrating pipe material to penetrate the sleeve from one side of the sleeve penetrating direction.
A second prefabricated pipe arranging step of arranging a second prefabricated pipe having a connecting pipe material connected to the sleeve penetrating pipe material on the other side in the penetrating direction of the sleeve.
A method for constructing a piping structure, which comprises a connecting step of connecting the sleeve penetrating pipe material and the connecting pipe material with a connecting member.

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