JPH0815497B2 - Piping method for fluid piping - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention branches a water supply main pipe or a fluid supply pipe such as a sprinkler main pipe to provide a faucet or
The present invention relates to a piping method for fluid piping that supplies fluid to a device such as a sprinkler head.

[0002]

2. Description of the Related Art Conventionally, a pipe construction method for fluid pipes has used a screw-in type joint. In this piping method, almost all of the connection between the pipe and the joint, the connection between the joint and the instrument, etc., are mated with the female joint structure having the taper female screw and the male joint structure having the taper male screw. It was a thing.

Further, when the female joint structure and the male joint structure are fitted together, a liquid leakage preventing treatment must be carried out by using packing or seal tape. In this screw-in type, the female joint structure embedded in the wall or ceiling is fitted with the male joint structure of the device.

[0004]

However, in the conventional technique, since the waterproofing method using the packing and the sealing tape is used, the number of construction man-hours is large and the technique and experience are required. Also, when installing a sprinkler head on the ceiling surface or when installing a faucet on the wall surface, the amount of protrusion of the throttle tube or the take-out socket must be adjusted to adjust the finished surface, which reduces man-hours. There were many problems.

Moreover, after the device is attached and the fluid is injected into the branch pipe, the main plug must be stopped and the liquid must be drained every time the device is replaced or a new branch pipe is added. At the same time, there was a risk of a liquid leakage accident. It is an object of the present invention to provide a piping construction method for a fluid pipe, which does not require advanced technology or experience and can reduce the number of construction steps.

[0006]

[Means for Solving the Problems] To achieve the above object
A pipe construction method for a fluid pipe according to the first aspect of the present invention is a pipe construction method for a fluid pipe for branching a fluid supply pipe to supply a fluid to a fluid instrument, wherein the branch pipe is a branch pipe for the supply pipe. Connect the joint and connect it to the branch pipe joint at one end
A self-sealing machine is attached to the other end
A sealing machine having a structure and connected to the fluid device.
Branch pipe with self-sealing joint having structure
Of the connecting joint to the branch pipe joint.
And are characterized .

The piping method for the fluid piping of the second invention is the first
Self seal joint of the invention is, is configured as a self-sealing joint with branches having a self-sealing joint structure for branch
It is characterized by being Further, the piping method for fluid piping of the third invention is characterized in that a branch pipe for feed piping is connected to the self-sealing joint with branch of the second invention.

The pipe construction method for the fluid pipe of the fourth invention is as described above.
First, the connection between the second or third supply pipe and the branch pipe joint of the invention, and the connection between the branch pipe and the branch pipe joint is characterized by being carried out by one-touch fitting.

[0009]

In the piping method for fluid piping of the first aspect of the invention, first, the fluid supply piping (for example, water supply main pipe or sprinkler main pipe )
Connect the branch pipe joint for branching to. Next, a connecting joint attached to one end of the branch pipe is connected to the branch pipe joint. And then, the other end of the branch pipe and disposed to the mounting position of the instrument for fluid to secure the self-sealing joint to the other end of this.

As a result, a branch line from the fluid supply pipe to the self-sealing joint is formed. Also in this state
Is a self-sealing joint that serves as the end of the branch line.
Since it has a lock mechanism, water is stopped and a fluid can be injected into the branch conduit. Then attach it to the other end of the branch pipe.
Ri self seal joint attached is the instrument for fluid (eg
When field faucets and sprinkler heads) is connected, it supplies the fluid to the instrument for connecting fluid, joint
For the fluid by having the seal mechanism of the connecting part
Prevents fluid from leaking from the joint connection with the instrument.
The self-sealing mechanism also works when the fluid device is removed.
Can, to prevent leakage of fluid.

Therefore, in the piping method for fluid piping according to the first aspect of the present invention, the fluid can be injected up to the self-sealing joint for connection with the fluid tool when the piping is completed. or,
A device for fluid can be connected and disconnected with one touch without performing a waterproofing process with a sealing tape or the like and a draining process.

Further, according to the piping method for the fluid piping of the second invention, the self-sealing joint attached to the end of the branch pipe is used.
A hand has a branch with a self-sealing joint structure for branching.
Because it is constituted as Rufushiru joint, for example, as shown in the third invention, it is possible to Fit the branch pipes for feeding pipe for supplying the fluid to the instrument for other fluids. As a result, it is possible to perform the additional work of the fluid device by modifying a few places.

The pipe construction method for the fluid pipe of the third invention is the second one.
A branch pipe for a feed pipe is connected to the self-sealing joint with a branch of the invention to perform a feed pipe for supplying a fluid to an instrument for another fluid . Accordingly, or remove the device for an existing fluid, Ru can be added the branch pipe without performing modification work of the existing pipe. As a result, it is possible to add a branch pipe without performing a major remodeling work of the existing pipe and without performing a water stop treatment or drainage of the terminal.

In the piping method for fluid piping of the fourth invention, the connection between the supply piping and the branch pipe joint and the connection between the branch pipe joint and the branch pipe described in the above first, second or third invention are performed. It is done by a one-touch joint. This allows
Fluid pipes can be installed without thread cutting or liquid stop seals.

[0015]

EXAMPLE Next, an example of the piping method of the fluid piping of the present invention will be described. FIG. 1 is a configuration diagram of a sprinkler piping system 1 configured by the piping method of this embodiment. The sprinkler piping system 1 is the existing sprinkler head 3
The state of adding a new sprinkler head 5 is shown in FIG.

First, the structure of the existing sprinkler head 3 will be described. In addition, this sprinkler head 3
It corresponds to the "fluid device" described in the claims. Less than
Also in the following explanation, the implementation with the terms in the claims
The correspondence with the example terms will be explained as appropriate.
The term described in the range of requirements is, for example, "fluid device".
I will show it in brackets like this. The existing sprinkler piping system 1 includes a sprinkler sub-main pipe 11,
Flexible header 13 and copper pipe flexible pipes 15A, 15B, 1
5C, 15D, 15E (simply referred to as 15 unless particularly distinguished) and a slide type self-sealing joint 17
And a sprinkler head 3. The sprinkler sub-main pipe 11 is connected to a sprinkler main pipe (not shown), and has a branch cheese 19 in the middle of the pipe. In addition, the sprinkler sub-main pipe 11 is
Corresponding to the "supply pipe", the flexible pipes made of copper pipes 15A, 15B,
15C, 15D, and 15E correspond to a "branch pipe". Well
In addition, the slide type self-sealing joint 17
It is equivalent to "joint".

The universal header 13 includes branch joints 23A and 23A.
B, 23C, 23D, and 23E (simply referred to as 23 when there is no particular need to distinguish). Flexible header 13
The branch joint 23C is one-touch connected to the female joint connecting portion 19a of the branch cheese 19. Flexible header 13
The detailed configuration of will be described later. The branch joints 23A, 23
B, 23C, 23D and 23E correspond to "branch pipe joint"
It

The copper pipe flexible pipe 15A has a male joint 25 shown in FIG. 2 attached to one end and a female joint 27 shown in FIG. 3 attached to the other end. This male joint 25
Corresponds to a "coupling joint". Details will be described later. The copper pipe flexible pipe 15A has one end connected to the universal header 13 and the other end connected to the slide type self-sealing joint 17. The flexible pipe 15A made of copper pipe is clipped to the ceiling base. Although not shown in FIG. 1, the copper pipe flexible tubes 15B, 15D, and 15E have substantially the same configuration as the copper pipe flexible tube 15A.

The slide type self-sealing joint 17 is attached near the surface of the existing ceiling 640. The sprinkler head 3 is attached to a slide type self-sealing joint 17. Next, the details of each part will be described.

FIG. 4 is a partially broken exploded perspective view of the slide type self-sealing joint 17. FIG. 5 is a partial cross-sectional view of the slide type self-sealing joint 17. As shown in FIGS. 4 and 5, the slide type self-sealing joint 17 includes a pipe side member 123, a screwing side member 125, and a tubular second member 127.
And a lock ring 129.

The pipe-side member 123 includes a tube body 135, a male joint connecting portion 137, a taper screw portion 139, a first water supply passage 141, and a cylindrical hole portion 143. The cylinder body 135 is a metallic cylindrical member. Male joint connection part 1
37 is formed at one end portion 135 a of the cylinder body 135 and has a protrusion member 138. I have. The taper screw portion 139 is formed on the other end portion 135b of the cylinder body 135. The first water supply channel 141 is formed from one end 135a to the other end 135b. The cylindrical hole 143 is formed from the other end 135b to the one end 135a side.

The screw-side member 125 has a female screw portion 147,
The taper female screw portion 149 is provided. Female thread 147
The tubular second member 127 is screwed. The taper female screw part 149 is screwed into the taper screw part 139. As shown in FIG. 5, the pipe side member 123 and the screw side member 125 are
The cylindrical first member 151 is configured by being screwed together.

The tubular second member 127 has a diameter-increasing portion 153,
The male screw portion 155, the male joint connecting portion 157, and the second water supply passage 161 are provided. The enlarged diameter portion 153 is formed at the one end portion 127 a of the tubular second member 127. Expanded part 1
53, the outer peripheral surface 153a is slightly smaller than the cylindrical hole 143. The O-ring groove 15 is formed on the outer peripheral surface 153a.
3b is formed. An O-ring 163 is provided in the O-ring groove 153b. A quadrangular (or hexagonal) groove (not shown) is formed in the other end 127b of the cylindrical second member 127.
Are formed.

As shown in FIG. 5, in the cylindrical second member 127, the male screw portion 155 is screwed into the female screw portion 147 and the enlarged diameter portion 153 is inserted into the cylindrical hole portion 143. 4 in this state
When the tubular second member 127 by inserting a special tool to the corner groove Ru is rotated clockwise, the tubular second member 127, the tubular first member 15
When it advances to 1 and is rotated counterclockwise, the cylindrical second member 127
The cylindrical first member 151 moves in the backward direction. That is, the protrusion amount of the tubular second member 127 with respect to the tubular first member 151 can be adjusted from below the ceiling 640 using a dedicated tool.

The lock ring 129 is the second cylindrical member 12
It is screwed to 7. When the lock ring 129 is fastened to the tubular first member 151, the lock ring 129 fixes the tubular first member 151 and the tubular second member 127 to each other. Tubular second member 12
A fluid cutoff valve 171 is disposed in the second water supply passage 161 in No. 7. The fluid cutoff valve 171 includes a self-sealing valve seat 173, a self-sealing taper head 175, and
Self-sealing flange 177 and coil spring 1
79 and. The fluid cutoff valve 171
It corresponds to the "self-sealing mechanism".

FIG. 6 is a partial sectional view of the taper head 175,
FIG. 7 is a partial sectional view of the flange 177. FIG. 8 is a left side view thereof. The valve seat 173 is integrally formed with the tubular second member 127, and is formed in a ring shape. The taper head 175 is made of a metal harder than the valve seat 173, and has a taper portion 175a and a cylindrical portion 175b. The tapered portion 175a includes a conical surface 175aa and a groove 175ab. The conical surface 175aa is a surface that abuts on the valve seat 173, and forms a so-called metal touch seal with each other. That is, initially, the edge portion 173a of the valve seat 173 is edge-processed and is in a sharp state. Here, conical surface 175
The point contact of aa causes the edge portion 173a to be crushed. As a result, the edge portion 173a conforms to the shape of the conical surface 175aa to form a liquid seal portion.

The flange 177 is a flange portion 177a.
And a cylindrical portion 177b and a male screw portion 177c. The flange portion 177a has a disk shape and has a groove 177a.
a. From the flange portion 177a to the cylindrical portion 177
A flow path 177d is formed over b. Channel 17
7d improves the flow of water by reducing the amount of the flow resistance of the flange portion 177a and the column portion 177b. The male screw portion 177c has a female screw hole 175.
It is to be combined with ba.

The coil spring 179 is interposed between the valve seat 173 and the flange 177, and applies an urging force in a direction of expanding the mutual space. Taper head 175 and flange 1
77, the coil spring 179 and the valve seat 173 are interposed between them, and they are fitted together as shown in FIG.

In the fluid cutoff valve 171 in the state shown in FIG. 5, the side surface of the male joint connecting portion 157 of the flange portion 177a constitutes the operating portion 181. When the operating portion 181 is pressed in the direction of arrow YA, the fluid cutoff valve 171 separates from the valve seat 173,
A fluid passage is formed. On the other hand, when the pressing of the operation portion 181 is released, the fluid cutoff valve 171 moves in the arrow YB direction, and the fluid passage is closed.

FIG. 9 is a partially cutaway perspective view of the male joint connecting portion 157, and FIG. 10 is a structural view of the male joint connecting portion 157 as seen from the inserting direction.
The male joint connecting portion 157 includes an engagement piece insertion hole 191, a square groove 192, a peripheral groove 193, an engagement piece fitting hole 195, an O ring accommodation groove 197, an O ring 199, and a set screw hole. 20
1 and. In addition, this male joint connecting portion 157
Claims "seal (at the connection with the fluid device)
It corresponds to "mechanism".

The circumferential groove 193 is formed at a position a predetermined distance from the end 127b. The engaging piece insertion hole 191 is
It is formed between the end 127b and the circumferential groove 193. The engagement piece fitting hole 195 is formed in the peripheral groove 193 from the outer peripheral portion 127c. The engaging piece fitting hole 195 has an end 127b.
It is formed with a half shift to the side. The set screw hole 201 is formed so as to face the engagement piece insertion hole 191. Set screw hole 2
In No. 01, the opening 201a is opened in the outer peripheral portion 127c.
By screwing the screw 201b from the opening 201a,
The screw 201b closes the engagement piece insertion hole 191.

The O-ring 199 is a cylindrical first groove of the circumferential groove 193.
It is located on the member 151 side. As shown in FIG. 2, the male joint 25 includes a main body 211, a coupling pipe 213, and a protruding member 21.
5, a mounting portion 217 of the copper pipe flexible pipe 15A, and a third water supply channel 219. The main body 211 is a cylindrical metal member. The third water supply passage 219 is formed along the axis of the main body 211.

The coupling pipe 213 is connected to the one end 21 of the main body 211.
It is formed from 1a to the central portion 211c. Coupling pipe 2
13 is a cylindrical shape, and has an insertion hole 213 for the protrusion member 215.
a. The protruding member 215 has a cylindrical shape, and is inserted and fixed in the insertion hole 213a. Protrusion member 2
Two 15 are provided in axial symmetry of the main body 211.

As shown in FIG. 3, the female joint 27 includes a body 311, a circumferential groove 313, an engaging piece fitting hole 315, an O-ring 316, an engaging piece inserting hole 317, and a set screw hole. 318
And a third water supply passage 319 and a mounting portion 320 for the flexible pipe 15A made of copper pipe. The main body 311 is a cylindrical metal member.

The female joint 27 is one-touch connected to the male joint connecting portion 137 of the slide type self-sealing joint 17. The sprinkler head 3 is, as shown in FIG.
The sprinkler head portion 433, the coupling pipe 437, and the projection member 439 are provided. Sprinkler head 3
First, the coupling pipe 437 is inserted into the second water supply passage 161 from the end 127b shown in FIG. Next, the protrusion member 439 is inserted into the circumferential groove 193 through the engagement piece insertion hole 191, and the sprinkler head 3 is rotated. Then, screw 20
When 1b is tightened, the opening of the engagement piece insertion hole 191 is closed by the screw 201b. This prevents the sprinkler head 3 from being removed from the tubular second member 127. With these, the connection between the slide type self-sealing joint 17 and the sprinkler head 3 is completed,
Water is sealed by the coupling pipe 437 and the O-ring 199.

Further, by this insertion, the one end portion 411a of the coupling pipe 437 moves the operation portion 181 by a predetermined amount in the arrow YA direction. As a result, the fluid cutoff valve 171 is opened. Therefore, a fluid passage is formed between the second water supply passage 161 and the sprinkler head 3 and is retained. After this insertion, the projecting member 439 has the circumferential groove 193.
Rotate the sprinkler head 3 while it is inside,
When the protruding member 439 reaches the engaging piece fitting hole 195, when the protruding member 439 is pulled forward, the protruding member 439 is inserted in the engaging piece fitting hole 195.

As a result, the sprinkler head 3 is positioned in the rotational direction. Since the sprinkler head 3 is constantly pushed by the coil spring 179, the state in which the protruding member 439 is inserted into the engagement piece fitting hole 195 is retained. That is, in a normal use state, the projection member 439 does not naturally slip out of the engagement piece fitting hole 195, and the sprinkler head 3 does not rotate.

With the sprinkler head 3 and the slide type self-sealing joint 17 described above, the joint length can be freely changed, and the joint and the joint can be separated with one touch. Moreover, the fluid passage can be formed only by performing this one-touch joint. Further, the water at the end of the slide type self-sealing joint 17 can be stopped only by performing the separation.

As a result, in the case where the sprinkler head 3 is mounted on the ceiling, the sliding self-sealing joint 17 is mounted before the finishing work, and the sprinkler head 3 is mounted after the finishing work, the following effects are obtained. . Since it is possible to adjust the amount of exposure from under the ceiling, and since the water is stopped at the terminals, the Yatoi pipe for finishing the ceiling becomes unnecessary. Further, it is not necessary to drain water at the time of mounting the sprinkler head 3 and the like, and it is not necessary to open and close the original valve in the existing case. Even if there is an erroneous operation or misidentification, the terminal has a built-in waterproof structure, so it is possible to prevent secondary disasters such as stains on the ceiling or walls.

By applying the one-touch joint and the separating work, it is possible to apply the sealing material, eliminate the need for tools, and simplify the work. In addition, it is possible to easily adjust the error size with respect to an error in the ceiling finish size or the buried pipe size. FIG. 12 is a perspective view of the branch joint 23 of the universal header 13, and FIG. 13 is a perspective view of the universal header 13.

Branch joint 23 constituting the universal header 13
Is a branch joint 23A, 23B, 23D, 2 shown in FIG.
3E, a branch joint 23C shown in FIG. 13, and a closing body 501 shown in FIG. Branch joint 23A, 23
B and 23D have the same shape. The branch joint 23A includes a coupling pipe 503, a main body 505, and a branch cylinder 506. The main body 505 is cylindrical and has a male joint connecting portion 508 which is substantially similar to the male joint connecting portion 157 shown in FIG. 9. The coupling pipe 503 has substantially the same configuration as the coupling pipe 213 shown in FIG. The coupling pipe 503 is connected to the male joint connecting portion 508 of the other branch joint 23. Branch cylinder 50
6 is a male joint connecting portion 508 of the main body 505 and the connecting pipe 5
03 and the male joint connecting portion 508.
It has almost the same configuration as. In addition, the connecting pipe 503 and the male type
The connection with the joint connecting portion 508 is defined as “one” in claim 4.
Supply pipe and branch pipe fittings made by touch fittings
"Connection with". In addition, the branch pipe 506 and the male joint
The connection with 25 is the "one-touch type connection" in claim 4.
Connection of branch pipe joint and branch pipe made by hand ”
Hit

The branch joint 23E has a main body 505, a branch cylinder 506, a male joint connecting portion 508, and a blind lid 509. The blind lid 509 is a terminal portion of the main body 505. The closing body 501 has a connecting pipe 503 and a blind lid 511.
The closing body 501 is the male joint connecting portion 50 of the branch joint 23A.
8 to connect the end of the main body 505.

The branch joint 23C, as shown in FIG.
A male joint coupling portion 508 and a coupling pipe 503, which are interposed between the branch joint 23B and the branch joint 23D.
A connecting pipe 504, a connecting pipe 507, and a protruding member 502.
It has and. The connecting pipe 507 is connected to the female joint connecting portion 19 a of the branched cheese 19. The female joint connecting portion 19 a has substantially the same configuration as the female joint 27. What
The connection between the connecting pipe 507 and the female joint connecting portion 19a is
In claim 4, "done by one-touch type joint
Connection between the supply pipe and the branch pipe joint ".

In the existing sprinkler piping system 1 described above, the sprinkler water supplied from the sprinkler sub-main pipe 11 is branched by the universal header 13 and supplied to the sprinkler head 3 via the copper pipe flexible pipe 15. To do. Next, as shown in FIG. 1, the addition of the new sprinkler head 5 will be described.

First, the existing sprinkler head 3 is removed, and the attachment 601 with a branch pipe is attached to the slide type self-sealing joint 17. As shown in FIG. 14, the attachment with branch pipe 601 has a branch main body 603.
A main body 605, a branch cylinder 607, and a coupling pipe 609.

The main body 605 includes a male joint connecting portion 611,
And a fluid shutoff valve 613. The branch cylinder 607 includes a male joint connecting portion 621 and a fluid cutoff valve 623. The male joint connecting portions 611 and 621 and the fluid cutoff valves 613 and 623 are the male joint connecting portion 15 shown in FIG.
7 and the fluid cutoff valve 171 have substantially the same configuration. The coupling pipe 609 has substantially the same configuration as the coupling pipe 503. In addition, the fluid cutoff valve 623 is a “separator for branching”.
Corresponds to "Ruff seal joint structure". And this fluid block
The attachment 601 with a branch pipe equipped with the shutoff valve 623
Corresponds to "branch self-sealing joint".

The branch main body 603 has a cylindrical shape, and the main body 6
05, the branch cylinder 607, and the coupling pipe 609 are assembled.
In the attachment 601 with a branch pipe, the coupling pipe 609 is connected to the slide type self-sealing joint 17 and the male joint connecting portion 611 is connected to the sprinkler head 3.

Next, a sheath pipe 655 is piped from the vicinity of the attachment 601 with the branch pipe to a new ceiling 650 newly provided below the existing ceiling 640. Saya pipe 655
For example, a flexible pipe made of synthetic resin or a CD pipe is used, and the flexible pipe 665 made of copper pipe is housed therein. The sheath pipe 655 is fixed to the ceiling base. When it is difficult to directly pipe the sheath pipe 655 because the ceiling is narrow or bent, the steel is first passed through the ceiling, and the steel pipe 655 is piped by this steel.

After the facility of the sheath pipe 655, the copper pipe flexible pipe 665 is inserted into the sheath pipe 655. Flexible pipe made of copper pipe 66
5 has substantially the same configuration as the flexible pipe 15 made of copper pipe, and has a female joint 27 attached to one end and a male joint 25 attached to the other end. The male joint 25 is attached to the attachment 601 with a branch pipe, and the female joint 27
Is connected to a sliding self-sealing joint 727.
The copper pipe flexible pipe 665 is a “branch pipe for feed pipe”.
Equivalent to.

The slide type self-sealing joint 727 has the same structure as the slide type self-sealing joint 17 and is attached to the new ceiling 650. The slide-type self-sealing joint 727 is attached to the ceiling base before finishing the ceiling in the vicinity of the inspection port 730. A new sprinkler head 5 is attached to the slide type self-sealing joint 727 after finishing the ceiling.

In FIG. 1, the sheath pipe 655 is arranged up to the vicinity of the slide type self-sealing joint 727.
As shown in FIG. 5, even if the sheath pipe 655A is installed up to the surface of the new ceiling 650, the pipe end is treated with the bell mouth 770, the copper pipe flexible pipe 665 is inserted, and the slide type self-sealing joint 727 is attached. Good.

The piping method described above is applicable to the flexible header 1
The number of branches of 3 can be freely increased or decreased. All of the piping from the flexible header 13 to the sprinkler head 3 and the connections can be made into a one-touch plug-in type.
If desired, the desired joint portion can be used as a self-seal so that the joint can be freely connected and disconnected without fear of water leakage. A new sprinkler head can be easily added by using the piping to the existing sprinkler head.

As a result, the man-hours of the piping can be reduced, and the working time can be shortened, which is a very excellent effect. It should be noted that the present invention is not limited to the above embodiments, and various embodiments can be carried out without changing the gist of the present invention. For example, whether the joint portion is a one-touch type or a self-sealing type one-touch may be appropriately changed.

[0054]

According to the piping method of the fluid piping of the first aspect of the present invention, the device can be connected and disconnected with one touch without performing the water stop treatment or draining. As a result, the number of man-hours for piping can be reduced, and the occurrence of a water leakage accident can be prevented, which is an extremely excellent effect.

In the piping method for fluid pipes according to the second aspect of the present invention, since the branch self-sealing joint is attached to the end of the branch pipe, the branch pipe is connected without performing water stopping treatment or drainage. Or it can be removed. As a result, since it is not necessary to remodel the existing branch pipe, the number of construction steps can be reduced and the number of parts can be reduced.

In the method for constructing a fluid pipe according to the third aspect of the present invention, a pipe for sending is provided from the terminal to another device without substantially modifying the existing pipe, and without water-stopping treatment or draining of the terminal. be able to. A pipe construction method for a fluid pipe according to a fourth aspect of the present invention is a one-touch type joint in which the supply pipe and the branch pipe joint of the first, second, or third aspect of the invention and the branch pipe joint and the branch pipe are connected. Therefore, it is possible to perform the piping for the fluid without performing thread cutting or liquid stop sealing. As a result, it is not necessary to have a high construction skill, and the number of steps can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a sprinkler piping system 1.

FIG. 2 is a perspective view of a male joint 25. FIG.

FIG. 3 is a perspective view of a female joint 27.

FIG. 4 is an exploded perspective view of a slide-type self-sealing joint 17.

FIG. 5 is a sectional view of a slide-type self-sealing joint 17.

FIG. 6 is a sectional view of a taper head 175.

FIG. 7 is a sectional view of a flange 177.

FIG. 8 is a left side view of a flange 177.

FIG. 9 is a perspective view of a male joint connecting portion 157.

FIG. 10 is a left side view of the male joint connecting portion 157.

FIG. 11 is a perspective view of the sprinkler head 3.

FIG. 12 is an exploded configuration diagram of a universal header 13.

FIG. 13 is a perspective view of a universal header 13.

FIG. 14 is a perspective view of an attachment 601 with a branch pipe.

FIG. 15 is an explanatory diagram of a mounted state of the sprinkler head 5.

[Explanation of symbols]

 1 ... Sprinkler piping system 3, 5 ... Sprinkler head 13 ... Flexible header 15A, 15B, 15D, 15E ... Copper pipe flexible pipe 17, 727 ... Sliding self-sealing joint 655 ... Saya pipe

Claims (4)

[Claims] 1. A pipe construction method for a fluid pipe for branching a fluid supply pipe to supply the fluid to a fluid device, wherein a branch pipe joint for branching is connected to the supply pipe, and one end of the branch pipe joint is connected. A coupling joint that can be connected to the pipe joint is installed.
And has a self-sealing mechanism at the other end and for the fluid
Self-seal with a sealing mechanism at the connection with other instruments
Of the branch pipe to which the joint is attached,
A pipe construction method for fluid pipes, characterized by being connected to a branch pipe joint . 2. A piping method for the fluid piping according to claim 1.
In the self-sealing joint, it is configured as a self-sealing joint with branches having a self-sealing joint structure for branch
Piping method of the fluid pipe, characterized in that that. 3. A piping method for a fluid pipe according to claim 2.
The pipe construction method for a fluid pipe according to claim 1 , wherein a branch pipe for feed pipe is connected to the self-sealing joint with branch. 4. A fluid arrangement according to claim 1, 2 or 3.
In piping method of pipe, the connection between the supply pipe and the branch pipe joint, and the content <br/> branch pipes joint and the flow connection between the branch pipe characterized by being performed by the one-touch joint Piping method for body piping.