JP6966295B2 - Piping structure - Google Patents

Description

The present invention relates to a piping structure.

Patent No. 5254289 (Patent Document 1) discloses a piping structure including first and second piping lines, and in this piping structure, the first and second piping lines constitute parallel piping lines. The first pipe line includes a detour branch joint for branching the pipe line. The detour branch joint is configured so that the first pipe line can be detoured by straddling the second pipe line without interfering with the second pipe line. In this piping structure, a T-shaped branch connection in a parallel piping path is realized by using a detour branch joint.

Patent No. 5254289

However, the detour branch joint disclosed in Patent Document 1 is a special joint and does not necessarily have good workability.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a piping structure including first and second piping lines constituting a parallel piping path without using a special joint. , To realize a T-shaped branch connection.

The piping structure according to the present invention includes a first piping path and a second piping path. The second piping path is arranged on the wall surface. The first and second piping lines constitute a parallel piping line. The first piping line includes a pipe and a T-shaped joint. The pipe has a first straight pipe portion and a curved pipe portion. The T-shaped joint has a connection port to which a pipe can be connected. The pipes are arranged so as to straddle the second piping line. The first straight pipe portion is arranged along the wall surface.

In this piping structure, a detour branch is realized by a pipe connected to a general T-shaped joint straddling the second piping path. Therefore, according to this piping structure, a T-shaped branch connection can be realized without using a special joint in the piping structure including the first and second piping lines constituting the parallel piping path.

Preferably, in the above piping structure, the curved pipe portion is bent so as to have at least two inflection points. The tube further has a second straight tube section. The first straight pipe portion extends from one end of the curved pipe portion. The second straight pipe portion extends from the other end of the curved pipe portion. The second straight pipe portion is connected to the connection port.

Further, preferably, the connection port is arranged so as to be inclined in an oblique direction with respect to the wall surface.

Since the connection port is inclined in an oblique direction with respect to the wall surface, the pipe can connect to the second pipe path even if the radius of curvature R of the curved pipe portion is large as compared with the case where the connection port is arranged horizontally on the wall surface. Straddle. Therefore, according to this piping structure, a T-shaped branch connection can be realized by a pipe that can be produced relatively easily.

More preferably, the second straight pipe portion is shorter than the first straight pipe portion.

In this piping structure, the lengths of the first straight pipe portion and the second straight pipe portion are different. Therefore, according to this piping structure, the builder can determine which one should be connected to the joint only by visually observing the length of each straight pipe portion of the pipe.

Preferably, in the piping structure, the pipe is a branch pipe and the connection port is a branch pipe connection port. The first pipeline further includes the first and second mains. The joint further has first and second mains connecting ports to which the first and second mains are connected, respectively. The second pipe line includes the third main pipe. The piping structure further includes a straight first and second main pipe side cover, a straight branch side cover, and a branch point cover. Each of the first and second main pipe side covers accommodates two pipes in parallel. The bifurcation side cover accommodates one or two tubes. The branch point cover has first, second and third cover connection ports. The first and second main pipe side covers arranged on the same line are connected to the first and second cover connection ports, respectively. The third cover connection port is provided in a direction orthogonal to the line segment connecting the first and second cover connection ports, and the branch side cover is connected. The first and second main pipes, the branch pipe and the third main pipe are accommodated by the first and second main pipe side covers, the branch side covers and the branch point covers.

In this piping structure, each pipe is housed by a cover. Therefore, according to this piping structure, it is possible to realize a piping having a beautiful appearance.

According to the present invention, in a piping structure including first and second piping lines constituting a parallel piping path, a T-shaped branch connection can be realized without using a special joint.

It is a perspective view which shows the piping structure. It is a top view of the piping structure. FIG. 2 is a sectional view taken along line III-III of FIG. It is a side view of a branch pipe. It is a perspective view of the branch pipe in the state of being connected to a joint. It is a figure for demonstrating the cover attached to a piping structure. It is a perspective view which shows an example of the case where a piping line is replaced. It is a side view which shows an example of another branch pipe. It is a perspective view which shows an example of another piping structure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated.

<1. Piping structure configuration>
FIG. 1 is a perspective view showing a piping structure 10 according to the present embodiment. With reference to FIG. 1, the piping structure 10 is a piping structure used for water supply and hot water supply to a desired place (for example, kitchen sink, unit bath, washroom, toilet).

The piping structure 10 includes a piping path 100 and a piping path 200. The pipe lines 100 and 200 form a parallel pipe line in which the main pipes of each other are arranged in parallel.

For example, one of the pipe lines 100 and 200 is provided between the water supply source and the desired location, and the other is provided between the hot water supply source and the desired location. Therefore, cold water flows through one of the pipe lines 100 and 200, and hot water flows through the other. According to the piping structure 10, water supply and hot water supply to a desired place can be realized.

The piping line 200 includes a joint 210, main pipes 220 and 230, and a branch pipe 240. The joint 210 is a T-shaped joint including two main pipe connection ports located on a straight line and one branch pipe connection port orthogonal to the straight line. The joint 210 has a water channel inside and includes a T-shaped pipe and a joint body attached to each of the three ends of the T-shaped pipe. The joint body includes an outer cylinder and an inner cylinder that define a tubular receiving port (connection port) into which the pipe is inserted, and a retaining ring in which teeth that bite into the inserted pipe are formed on the inner circumference. The structure and dimensions of the joint body at each end are the same. Further, the joint 210 is a so-called one-touch joint in which the pipe can be connected to the joint simply by inserting the pipe without using a special tool. Therefore, the builder can easily perform the piping simply by inserting the pipe into the receiving port of the joint 210.

The joint 210 includes main pipe connection ports 212 and 214 and branch pipe connection ports 216 to which pipes can be connected. The mains 220 and 230 are connected to the main connection ports 212 and 214, respectively. A branch pipe 240 is connected to the branch pipe connection port 216. The main pipes 220 and 230 and the branch pipe 240 are straight pipes made of resin such as olefin or copper.

The pipe line 100 includes a joint 110, main pipes 120 and 130, and a branch pipe 140. The joint 110 is a joint similar to the joint 210, and includes main pipe connection ports 112 and 114 and a branch pipe connection port 116. The mains 120 and 130 are connected to the main connection ports 112 and 114, respectively. A branch pipe 140 is connected to the branch pipe connection port 116. The main pipes 120 and 130 are straight pipes made of resin such as olefin or copper, and the branch pipe 140 is a curved pipe made of resin or copper such as olefin.

The mains 120 and 130 in the pipe line 100 and the mains 220 and 230 in the pipe line 200 are provided along the same wall surface. Further, the branch pipe 240 and the joint 210 in the pipe line 200 are also provided along the same wall surface as the above wall surface. Further, a straight pipe portion 142 (described later) of the branch pipe 140 in the pipe passage 100 is also provided along the same wall surface as the wall surface.

In the present embodiment, the straight pipe portion 142 and the branch pipe 240 are arranged so as to be parallel to each other and at the same height from the wall surface. The straight pipe portion 142 and the branch pipe 240 do not necessarily have to be arranged at the same height from the wall surface, and one of them may be farther from the wall surface than the other. Further, "along the wall surface" may be in contact with the wall surface or may be away from the wall surface. If it extends in a direction substantially parallel to the wall surface, it can be said to be "along the wall surface".

In the piping structure 10 according to the present embodiment, the joint 110 in the piping path 100 is provided so as to be inclined in the direction in which the branch pipe connecting port 116 is separated from the wall surface. Then, by devising the shape of the branch pipe 140 connected to the branch pipe connection port 116, a T-shaped branch connection in the pipe line 100 is realized. That is, the curved pipe portion 143 (described later) of the branch pipe 140 is arranged so as to straddle the pipe line 200 (main pipe 220 and / or the joint 210), and the straight pipe portion 142 is arranged along the wall surface. , The T-shaped branch connection in the pipe line 100 is realized without the pipe line 100 interfering with the pipe line 200.

FIG. 2 is a plan view of the piping structure 10. FIG. 3 is a sectional view taken along line III-III of FIG. As shown in FIGS. 2 and 3, it can be seen that the branch pipe 140 straddles the pipe line 200. The details of the branch pipe 140 will be described below.

<2. Branch pipe configuration>
FIG. 4 is a side view of the branch pipe 140. As shown in FIG. 4, the branch pipe 140 includes straight pipe portions 141 and 142 and curved pipe portions 143.

The curved tube portion 143 is bent (in an S shape) so as to have two inflection points. The curved tube portion 143 includes elbow portions 147 and 149 and a straight portion 148. The pipe shaft is bent in each of the elbow portions 147 and 149, and the pipe shaft is linear in the straight portion 148. The straight pipe portion 141 extends from one end of the curved pipe portion 143, and the straight pipe portion 142 extends from the other end of the curved pipe portion 143.

The length of each of the straight pipe portions 141 and 142 is equal to or larger than the insertion allowance of a general joint (for example, the joint 110 (FIG. 1)). Therefore, both ends of the branch pipe 140 can be connected to a general joint. When the pipe diameter of the branch pipe 140 is 13A, the length of each of the straight pipe portions 141 and 142 is, for example, about 20 mm or more. When the pipe diameter of the branch pipe 140 is 16A, the length of each of the straight pipe portions 141 and 142 is, for example, about 22 mm or more.

In the present embodiment, the length of the straight pipe portion 141 is shorter than the length of the straight pipe portion 142. This is because the straight pipe portion 141 needs to be connected to the joint 110, but the installer does not accidentally connect the straight pipe portion 142 to the joint 110. That is, with such a configuration, the installer can determine which one should be connected to the joint 110 only by visually comparing the lengths of the straight pipe portions 141 and 142. As a result, it is possible to reduce the situation where the straight pipe portion 142 is erroneously connected to the joint 110 by the installer. It is desirable that the length of the straight pipe portion 141 is, for example, the same as the length of the insertion allowance of the joint 110.

The curved pipe portion 143 is formed by thermoforming a straight pipe when it is made of resin, and is formed by plastically deforming the straight pipe when it is made of copper (bending process).

FIG. 5 is a perspective view of the branch pipe 140 in a state of being connected to the joint 110. With reference to FIG. 5, the branch pipe 140 connected to the joint 110 is mounted on a flat surface. The straight pipe portion 141 of the branch pipe 140 is connected to the branch pipe connection port 116 of the joint 110.

Since the curved pipe portion 143 is formed in the branch pipe 140, when the straight pipe portion 142 is placed on a flat surface, a space S1 is formed between the flat surface and the curved pipe portion 143. Interference between the pipe line 100 and the pipe line 200 is avoided by passing the pipe or the joint of the pipe line 200 (FIG. 1) through the space S1.

The height Z1 from the plane in the space S1 is adjusted by the size of the pipe and the joint that the curved pipe portion 143 straddles. That is, the inclination θ of the joint 110, the length of the straight pipe portion 141, and the bending condition of the curved pipe portion 143 are adjusted. For example, the inclination θ of the joint 110 is adjusted in the range of 0 to 89 degrees, preferably 30 to 60 degrees. Further, when the pipe diameter of the pipe included in the pipe line 200 is 13A, Z1 is set to, for example, about 35 mm, and when the pipe diameter of the pipe included in the pipe line 200 is 16A, Z1 is set to about 35 mm. For example, it is approximately 40 mm. By appropriately adjusting the inclination θ of the joint 110, the branch pipe 140 can straddle the pipe line 200 even if the radius of curvature R of the curved pipe portion 143 is large.

<3. Cover installation>
FIG. 6 is a diagram for explaining a cover attached to the piping structure 10. With reference to FIG. 6, the branch point cover 150 includes a base 152 and a lid 154. The main covers 170 and 180 include bases 172 and 182 and lids 174 and 184, respectively. The branch pipe cover 190 includes a base 192 and a lid 194. Each of the bases 152, 172, 182, 192 is fixed on the wall surface, and the lids 154, 174, 184, 194 are attached to the bases 152, 172, 182, 192, respectively.

The branch point cover 150 is formed with cover connection ports 160, 162, 164. The cover connection ports 160 and 162 are arranged on the same line, and the cover connection ports 164 are provided in a direction orthogonal to the line segment connecting the cover connection ports 160 and 162.

The main cover 170 is connected to the cover connection port 162, and the main cover 180 is connected to the cover connection port 160. Then, the branch pipe cover 190 is connected to the cover connection port 164.

The main cover 170 accommodates the mains 120 and 220, and the main cover 180 accommodates the mains 130 and 230. The branch pipe cover 190 accommodates the branch pipes 140 and 240, and the branch point cover 150 accommodates the joints 110 and 210.

As described above, each pipe included in the pipe passages 100 and 200 is accommodated by the main pipe covers 170 and 180, the branch pipe cover 190 and the branch point cover 150. Therefore, according to the piping structure 10, it is possible to realize a piping having a beautiful appearance.

<4. Features>
As described above, in the piping structure 10 according to the present embodiment, the branch pipe 140 is arranged so as to straddle the pipe line 200 (main pipe 220 and / or the joint 210), and the straight pipe portion 142 of the branch pipe 140. Are arranged along the wall surface. Therefore, according to the pipe structure 10, since the branch pipe 140 does not interfere with the pipe line 200, a T-shaped branch connection in the pipe line 100 can be realized without using a special joint.

<5. Modification example>
Although the embodiments have been described above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the embodiments. Hereinafter, a modified example will be described. However, the following modifications can be combined as appropriate.

(5-1)
In the piping structure 10 according to the above embodiment, a T-shaped branch connection is also made in the piping path 200. That is, in the pipe line 200, the joint 210 was provided, and the branch pipe 240 was connected to the branch pipe connection port 216 of the joint 210. However, it is not always necessary to make a T-shaped branch connection in the pipe line 200.

FIG. 7 is a perspective view showing an example of a case where the pipe line 200 is replaced with the pipe line 200B. With reference to FIG. 7, the T-shaped branch connection is not made in the pipe line 200B. Even in this case, the T-shaped branch connection in the pipe line 100 is realized by the branch pipe 140 straddling the pipe line 200B.

(5-2)
In the piping structure 10 according to the above embodiment, the branch pipe 140 was used. However, the shape of the branch pipe 140 is not limited to this. The shape of the branch pipe 140 may be any shape that can straddle the pipe line 200.

FIG. 8 is a side view showing an example of another branch pipe. As shown in FIG. 8, the branch pipe 140A includes straight pipe portions 141A and 142A and curved pipe portion 143A.

The curved tube portion 143A includes elbow portions 147A and 149A and a straight portion 148A. The elbow portions 147A and 149A have larger elbow angles than the elbow portions 147 and 149 (FIG. 4) in the above embodiment. When the branch pipe 140A is placed on a flat surface, the pipe axis P1 of the straight pipe portion 141A is 90 degrees with respect to the flat surface (note that it does not have to be exactly 90 degrees, and an error that does not pose a problem in practical use). There may be.).

In this case, the space S2 is formed between the flat surface and the curved tube portion 143A. Interference between the branch pipe 140A and the pipe line 200 is avoided by passing the pipe or the joint of the pipe line 200 (FIG. 1) through the space S2.

(5-3)
For example, in the example shown in FIG. 1, the T-shaped branch connection is made at the place where the branch pipe 140 is located on the left side of the branch pipe 240, but the place where the T-shaped branch connection is made is not limited to this. For example, a T-shaped branch connection may be made at a location where the branch pipe 140 is located to the right of the branch pipe 240.

(5-4)
In the pipe structure 10 according to the above embodiment, the branch pipe 140 straddles the pipe line 200. However, in the case of realizing a T-shaped branch connection in a parallel pipe line, the pipe straddling the other pipe line does not necessarily have to be a branch pipe.

FIG. 9 is a perspective view showing an example of another piping structure. As shown in FIG. 9, in the pipe structure 10C, the pipe line 100 includes the main pipe 120. The main pipe 120 has a curved pipe portion. In this pipe structure 10C, the main pipe 120 straddles the pipe line 200 (joint 210 and / or branch pipe 240). Even with such a configuration, a T-shaped branch connection can be realized in a parallel piping line.

(5-5)
The wall surface may be in any direction. It may be horizontal like a general wall, or it may be an upward or downward surface. It may be a floor or ceiling surface. Also, the wall surface does not necessarily have to be flat.

10 Piping structure, 100, 200 piping lines, 110, 210 joints, 112, 114, 212, 214 main pipe connection port, 116, 216 branch pipe connection port, 120, 130, 220, 230 main pipe, 140, 240 branch pipe , 141,142 straight pipe part, 143 curved pipe part, 147,149 elbow part, 148 straight part, 150 branch point cover, 170,180 main pipe cover, 190 branch pipe cover, 152,172,182,192 bases, 154,174,184,194 lids.

Claims (3)

The first piping line and
A second pipe passage disposed on the wall,
With
The first and second piping lines constitute a parallel piping line.
The first piping line is
A pipe having a first straight pipe portion , a second straight pipe portion, and a curved pipe portion,
A T-shaped joint having a connection port to which the pipe can be connected ,
Including
The pipe is arranged so as to straddle the second pipe path.
The curved tube portion has a first elbow portion and a second elbow portion, and has a second elbow portion.
The first elbow portion is curved so as to be convex in the direction toward the wall surface.
The second elbow portion is curved so as to be convex in the direction away from the wall surface.
The first straight pipe portion extends from the end portion of the curved pipe portion on the side of the first elbow portion , and is arranged along the wall surface.
The second straight pipe portion extends from the end portion of the curved pipe portion on the side of the second elbow portion and is connected to the connection port of the T-shaped joint.
The axis of the connection port is arranged so as to be inclined in an oblique direction with respect to the wall surface.
Piping structure. The piping structure according to claim 1 , wherein the second straight pipe portion is shorter than the first straight pipe portion. The pipe is a branch pipe and
The connection port is a branch pipe connection port.
The first pipe line further includes the first and second main pipes, and includes the first and second main pipes.
The joint further has first and second main pipe connection ports to which the first and second main pipes are connected, respectively.
The second pipe line includes a third main pipe.
The piping structure is
Straight first and second main pipe side covers, each accommodating two pipes in parallel,
A straight bifurcation cover that accommodates one or two tubes,
Provided in a direction orthogonal to the first and second cover connection ports to which the first and second main cover side covers arranged on the same line are connected, and the line segment connecting the first and second cover connection ports, respectively. A branch point cover having a third cover connection port to which the branch side cover is connected ,
With more
Said first and second mains the branch pipe and the third main tube, said first and second main side cover, wherein is accommodated by the branching-side cover and said branch point cover, according to claim 1 or 2 Piping structure described in.

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