JPH082197Y2 - Piping structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a piping structure constructed by a sheath pipe method.

<Prior Art> In indoor piping work, a sheath pipe (protection pipe for water passage) is arranged along a predetermined piping route during the construction work of the building, and the The so-called sheath pipe construction method of passing pipes for supplying water (water supply / hot water supply, cooling / heating, water distribution pipes, etc.) to the sheath pipe may be applied.

In addition, for water supply / hot water supply to scattered points, especially for water supply / hot water supply in hotels, buildings or large-scale houses, water supply / hot water supply pipes can be used directly from the water supply or hot water supply header. Even at times, a header construction method that can guarantee a sufficient amount of water and hot water supply may be applied regardless of the location of the hot water supply or hot water supply.In particular, the sheath pipe header construction method, which is a sheath pipe construction method for this header construction method, is adopted. It is flourishing.

FIG. 3 shows a conventional piping structure by the sheath pipe header construction method, 5'is a water passage pipe, 2'is a sheath pipe (duct) for protecting the water passage pipe 5 ', 1'is a header, and 6'is Kitchen, washroom,
It is a faucet at the tip of piping such as a toilet and bathtub. The sheath tube 2'is
It is placed during the construction work of the building, and is embedded in the floor slab except for both ends 22 ', 22'. Reference numeral 3'denotes a bell mouth embedded in a slab, which has a trumpet shape and allows the starting base points of both ends of the sheath tube to be adjusted within the range of the opening width.
Then, at the time of indoor equipment construction, the water pipe 5'is passed through the sheath pipe 2'from the header 1'side toward the pipe tip 6 ', and the pipe tip construction is performed. On the header 1'side, the sheath pipe end 22 'and the water passage pipe 5'inside thereof are bent and bent, and the water passage pipe 5'is connected to the branch port 11' of the header 1 '.

<Problems to be Solved> Although a corrugated plastic pipe is used for the sheath pipe 2 ', the pipe wall thickness needs to be considerably heated to withstand the slab driving pressure, and the bending rigidity of the sheath pipe is increased. Is quite large. Therefore, on the header 1'side, the sheath tube end 22 '
The work of bending and raising is not easy. In particular, the space for bending and raising the sheath tube end 22 ', that is, the space between the header 1'and the floor surface is narrow, and a large number of sheath tube ends 22', ... , ... are crossed or entangled randomly in a unique orientation based on the direction of, and one sheath tube end 22 ', ... Since the end of the sheath tube must be pushed away, these operations for the highly rigid sheath tube end are extremely difficult.

In addition, after the sheath pipe 2'is installed, the sheath pipe ends 22 ', ... projecting from the floor base surface obstruct the passage, etc., until the original piping work such as the passage of the water passage pipe is performed. There is also an inconvenience that becomes an obstacle to the construction during that time.

An object of the present invention is to provide a pipe structure by the sheath pipe construction method, which can easily bend and raise the end of the sheath pipe and does not cause a traffic obstacle before the actual pipe construction. is there.

<Means for Solving the Problems> The piping structure according to the present invention is a pipe formed by passing a water pipe through an arrangement sheath pipe having a rising portion on the foundation surface and an embedded portion below the foundation surface, The above-mentioned sheath pipe of the rising portion and the sheath pipe of the embedding portion are provided separately, and the flexibility of the former is made higher than that of the latter.

<Description of Embodiments> Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing an embodiment of the present invention, a part of which is shown in cross section.

In FIG. 1, reference numeral 1 is a header, to which units 10 having branch ports 11 are connected by sockets 12. 21 is piping from the header side (kitchen, washroom, bathroom,
It is a buried sheath pipe buried in the floor slab of a building over a toilet, etc., and is provided with crush resistance to withstand the pressure of slab driving. For example, the use of hard plastic, the increase in wall thickness, and the embedding of a reinforcing metal wire give a great crush resistance. Reference numeral 3 denotes a bell mouth (made of hard plastic or metal), which is embedded in the floor slab with its upper end aligned with the upper surface of the floor, and accommodates the buried sheath tube end 210. Reference numeral 22 denotes a rising sheath pipe, the lower end of which is connected to the buried sheath pipe end 210 by a stopper band 41 and an adhesive agent. The flexibility of the rising sheath tube 22 is higher than that of the buried sheath tube 21. The rising sheath tube 22 is not required to have pressure resistance against slab driving pressure, and has low bending rigidity due to use of soft plastic and thinning. Reference numeral 5 denotes a water passage pipe, which passes through the buried sheath pipe 21 and the rising sheath pipe 22 and is connected to the branch port 11 of the header 1.

In order to construct the above-mentioned piping structure, the buried sheath pipe 21 is installed during the construction work of the building. At the time of indoor equipment work after this skeleton work, the remaining work is performed, and first, the header 1 is installed in the indoor piping space. Then one buried pipe
The water passage pipe 5 is passed from the header 1 side to the pipe 21, the rising sheath pipe 22 is connected to the buried pipe end 210, and then the water passage pipe 5 is pushed back on the pipe tip side, and the connected rising sheath pipe is connected.
The water passage pipe 5 is inserted into the pipe 22, and then the rising sheath pipe 22 and the water passage pipe 5 inside the riser pipe 22 are inserted into the predetermined branch port 11 of the header 1.
Then, the rising sheath pipe 22 is fixed to the wall surface by a cleat or the like, and then the water passage pipe 5 is attached to the header 1.
Connect to branch port 11 of. After that, the above-mentioned construction is performed one by one for each of the remaining piping lines.

In this construction, upright sheath pipe until indoor equipment construction
Since 22 can be left unconnected, there will be no traffic obstacles during construction during this period. Further, since the rising sheath pipe 22 is made of a material having excellent flexibility, it can be bent and bent with a sufficiently small bending force while the water passage pipe 5 is inserted therein. Work can be done easily.

As a construction method different from the above, all buried sheath pipes 21, ...
The rising sheath pipes 22, ... May be connected to the above, and after that, the water passage pipes 5 ,. In this case, as described above, as in the conventional example, the rising sheath tubes 22, ... Orient in their own directions depending on the directions of the bell mouths 3 ,. When bending one rising sheath pipe 22 toward the predetermined branch opening 11 of the header 1, it is necessary to avoid pushing other rising sheath pipes that are intersecting and intertwined, but make the bending stiffness of the rising sheath pipe small. Therefore, such work can be easily performed.

The piping structure according to the present invention has a piping tip side, for example, a kitchen,
It can be used in the bathroom, bathroom, and toilet side.

FIG. 2 shows an embodiment of this case, in which the rising sheath pipe 22 connected to the buried sheath pipe 21 is bent and raised and connected to the faucet box 62 on the back surface of the partition wall / wall panel 61. An elbow joint 63 is connected to the water passage pipe 5, the elbow joint 63 is housed in the faucet box 62, and the horizontal portion 63 of the elbow joint 63 is accommodated.
Align 1 with the holes in the front of the faucet box 62 and the holes in the partition wall 61, and place a waterproof panel 64 on the front of the partition wall 62.
The waterproof panel 64 is pressed against the front surface of the wood partition wall 61 by fastening the lock nut 65 to the elbow horizontal portion 631 and the curran 66 is connected to the elbow horizontal head portion.

<Effect of the Invention> The piping structure according to the present invention has the above-described configuration, and the embedded portion and the rising portion of the sheath pipe are separated from each other.
After the installation of the buried portion, the rising sheath pipe can be left in an unconnected state until pipe construction work, and passage obstacles and the like during that period can be avoided. Also, since the rising sheath pipe is made highly flexible, it can be easily bent and bent toward the connection point of the water passage pipe end with the water passage pipe inserted therethrough. The connection of the water passage pipe end can be easily performed.

[Brief description of drawings]

1 and 2 are explanatory views showing an embodiment of the present invention, and FIG. 3 is an explanatory view showing a conventional example. 1 …… Header, 21 …… Buried sheath tube, 22 …… Standing sheath tube,
5 ... Pipe for water flow.

Claims (1)

[Scope of utility model registration request] 1. A pipe formed by passing a water pipe through an arrangement sheath pipe having a rising portion on the foundation surface and an embedding portion under the foundation surface. A piping structure characterized in that the flexibility of the former is made higher than that of the latter by making it a separate body from the sheath tube.