JPH0747858B2 - Plumbing system - Google Patents

Description

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

<Prior art> In indoor pipe construction, a sheath pipe is arranged along a predetermined pipe route during the construction work of a building, and a water pipe (water supply / hot water supply) is installed in the sheath pipe at the time of facility construction of the building. , Cold and hot water for cooling and heating, etc.), so-called sheath pipe method may be applied.

In addition, water and hot water supply to scattered points, especially hotels,
For water supply / hot water supply in buildings or large-scale houses, water supply or hot water supply headers can be used to connect water supply / hot water supply pipes to water supply / hot water supply points, regardless of the distance between water supply / hot water supply, even at the same time. A header construction method that can guarantee a sufficient amount of hot water supply and hot water supply is sometimes applied, and in particular, the sheath pipe header construction method in which this header construction method is applied by the sheath pipe construction method is actively used.

FIG. 6 shows a conventional piping structure using the sheath pipe header method. In FIG. 6, reference numeral 1'denotes a water supply / hot water supply header. Reference numeral 82 'denotes a water faucet device connection box for connecting a water faucet or other devices, for example, a water faucet box, and is attached to the back surface of the wood partition wall 81' at each water supply / hot water supply location. Reference numeral 3'denotes a sheath pipe arranged from the header 1'to each box for connecting faucet equipment 82 '. Both ends thereof are raised, and on the side of the box 82', the raised upper end is connected to the bottom of the box 82 '. There is. 4'is a water pipe inserted into each sheath pipe 3 ', one end of each water pipe 4'is connected to each branch port of the header 1', and the other end is a box 8
It is housed in a 2 ', and the other end is connected to a curran 89' or a device (for example, a water heater, a heating and cooling device) outside the box through a joint 84 '.

<Problem to be Solved> Conventionally, a waterproof cap 7'is sealed between the rising sheath pipe end 30 'on the header side and the water pipe 4'. Further, the inside of the box 82 'and the inside of the sheath tube 3'are in communication with each other, and the inside of the box 82' is not made watertight. Therefore, when a water leak occurs in the water pipe 4'in the sheath pipe 3'or in the connecting portion between the water pipe 4'and the box inner joint portion 84 ', the water surface of the leak finally reaches the box 82', Damage to the interior materials of the building is inevitable due to running water running from the 82 'to the outside. Furthermore, even if water leaks from around the header 1 ', damage to the interior material is unavoidable. Even if the above box is made watertight, water leakage around this header cannot be dealt with, and there is a risk that the inside of the sheath pipe will be exposed to high water pressure that is commensurate with the water supply pressure of the water passage pipe. Is difficult to seal.

Conventionally, as a gas piping structure applying the sheath pipe header method,
The header is airtightly surrounded by a cover and the inside of the sheath pipe is communicated with the inside of the cover, and the other end of the sheath pipe is sealed to the inside of the box to block the inside of the sheath pipe from the inside of the sheath pipe, and the exhaust pipe is connected to the cover. It has been proposed that leak gas generated in the gas pipe or header in the pipe be collected in the cover and released into the atmosphere from the exhaust pipe (JP-A-56-124784), but if the header is surrounded by the cover, It is difficult to maintain and inspect the header, and the occupied space for installing the cover is large corresponding to the size of the header, which is also a disadvantage. In addition, it is troublesome that a leakage accident in the box must be dealt with separately.

The object of the present invention is to use the sheath tube as a leak duct regardless of whether water leakage occurs in the sheath tube, water leakage around the header, or water leakage in the box for connecting faucet equipment. It is to provide a piping system that can be dealt with by simple construction and an easy configuration.

<Means for Solving the Problems> In the piping system according to the present invention, a sheath pipe is piped from one header to a plurality of water faucet device connection boxes, and the end portions on the header side of these sheath pipes stand toward the header. It is raised, the end part of the box for water faucet device connection of each sheath pipe is launched toward the box and its tip is watertightly connected to the box, and the water pipe is inserted into each of the sheath pipes described above. Connected to one end of the water pipe or each branch port of the header, the other end of each water pipe is housed in each box, and the other end of each water pipe in each box is connected to the faucet device through a joint. The inside is watertightly shut off from the outside,
Moreover, the water receivers communicating with the insides of the respective sheath pipes and having the respective sheath pipe insertion pipe portions on the bottom plate portion are watertightly attached to the respective rising sheath pipes on the header side in the respective sheath pipe insertion pipe portions, so that Is opened to the water receiver, and the water receiver is provided with a drain hole.

<Function> Since the inside of the box for connecting faucet equipment is watertightly shut off from the outside and the inside of the box is connected to the inside of the sheath pipe, the leaked water in the box flows into the sheath pipe, and this leakage and the passage inside the sheath pipe occur. Water leaks from the water pipe reach the water receiver after the inside of the sheath pipe is full. Further, water leakage around the header reaches the water receiver via the inside of the sheath tube or directly. Therefore, any of the above leaks can be guided to the water receiver for treatment.

<Description of Embodiments> An embodiment of the present invention will be described below with reference to the drawings.

1A is a cross-sectional view showing an embodiment of the present invention, FIG. 1B is a cross-sectional view showing in enlarged detail B in a dotted line frame of FIG. 1A, and FIG. 1C is a cross-sectional view of FIG. 1B. It is CC sectional drawing. FIG. 1D is a cross-sectional view showing an enlarged detail D in a dotted line frame in FIG. 1A.

1A to 1C, 1 indicates a header,
A predetermined number of header units (10) having branch ports (11) are connected in series by sockets (12) and installed in a piping space in a building. Reference numeral 2 denotes a water supply connection pipe, which connects the header 1 and a water supply main pipe (not shown). Reference numeral 3 denotes a sheath pipe, which is arranged in advance at the time of building the building, and the end portion is erected toward the header. 31 is a cleat,
Sheath pipes 3, ... are fixed to the wall of the building. Reference numeral 4 denotes a water pipe drawn into the sheath pipe 3, and an end portion 40 is guided above the sheath pipe end 30 and connected to a branch port 11 of the header 1 by a joint 41.

Reference numeral 5 is a water receiver, and 50 is a drain hole provided on the bottom surface of the water receiver 5. The water receiver 5 is made of a corrosion-resistant material, for example, a synthetic resin, and has a bottom plate portion sheath tube insertion pipe portion 51, and the sheath pipe end portion 30 is watertightly attached to the pipe portion 51. In the illustrated embodiment, a rubber ring is provided between the sheath tube insertion tube portion 51 and the sheath tube 3.
As shown in FIG. 1C, a cutout 52, 52 is provided in the sheath pipe insertion tube portion 51, and a U-shaped stopper 62 is attached to the cutout 52, 52.
Attach this stopper 62 to the sheath tube (wavy plastic tube) 3
It is locked in the groove. In FIGS. 1A and 1B, reference numeral 7 denotes a cap attached to the water pipe 4 slightly above the sheath pipe end 30. For example, the cap is made of rubber and its lower end is watertight to the sheath pipe end 30. It is installed. Reference numeral 71 denotes a through hole provided in the cap 7, which is located above the bottom surface of the water receiver 5 and opens the inside of the sheath tube 3 to the outside.

The sheath pipe 3 is piped from one header 1 to several hot water supply / hot water supply or cooling / heating places, and a box for connecting faucet equipment is provided at each of these places. In the illustrated embodiment, as shown in FIG. 1D, a faucet box 82 is attached to the back surface of the wood partition wall 81, and the end of the sheath pipe 3 arranged up to this box 82 is raised. The tip 30 is watertightly connected to the sheath pipe insertion pipe portion 83 of the water faucet box 82, and the other end 42 to the water pipe is housed in the water faucet box 82. To connect the pipe portion 83 of the water faucet box 82 and the sheath pipe distal end portion 30, the sheath pipe insertion pipe portion 51 of the water receiver 5 is connected.
The rubber ring 61 and the U-shaped stopper 62 can be used in the same manner as the connection of the sheath tube 3 with the. In FIGS. 1A and 1D, 84 is an elbow joint, and the other end 42 of the water pipe 4 is connected to this joint 84 in the faucet box 82. For example, a joint end 841 is inserted into the end 42 of the water pipe 4, and the joint end 841 is covered with a fastener 842 (a plurality of axial slits are provided on the tip 843), and the tightening is performed. By screwing the lock nut 844 onto the tool 842,
43 is tightened. Reference numeral 86 denotes a box cover, which abuts on the frame edge 821 and the wall surface 81 of the front opening of the box 82, inserts the tip portion 85 of the elbow joint 84 into the mouth pipe portion 861 of the cover 86, and the nut 87 at the joint tip 85. Screwed into the faucet box
82 is fixed to the wall 81 and the elbow joint 84 is fixed in the faucet box 82. 88 is a spacer, for example, a rubber sheet can be used. The inside of the faucet box 82 is watertightly shielded from the outside, and the box cover 86 and the frame edge of the box opening are
Between the tip surface of 821 and cover 86 and elbow joint tip 8
The packings P _{1 and} P ₂ are attached between them and 5, respectively. Reference numeral 89 is a curran screwed to the joint 84.

In the above, even if water leaks in the faucet box 82, since the inside of the faucet box 82 is shut off from the outside in a watertight manner, running of the leaked water to the outside can be prevented, and all the leaked water can be sheathed. It can be poured into 3. If the inside of the sheath pipe 3 becomes full due to this leakage or the leakage of the water passage pipe 4 in the sheath pipe 3, the accumulated water can be admitted to the water receiver 5 through the through hole 71 of the cap 7, and the water receiver 5 Wastewater can be treated through the drainage hole 50 of.

Thus, the water leak that has occurred in the faucet box 82 is prevented from occurring in the sheath tube 3.
Can be used as a duct and can be treated by the water receiver 5. Further, even if water leaks around the header 1, the leaked water drips down on the water receiver 5 along the header 1, the water pipe end portion 40, and the cap 7, so that this water leak can also be treated by the water receiver 5.

In the above description, a corrugated plastic pipe is usually used for the sheath pipe 3, and a heat-resistant plastic pipe, a copper pipe, a resin-coated aluminum pipe, or the like, which is heat-resistant depending on the water temperature, is used for the water passage pipe 4. A water leak detector can be installed in the water receiver 5. Alternatively, as shown in FIG. 1A, the drain pipe 53 connected to the water receiver 5 may be guided to the auxiliary water receiver 54, and the water leakage detector 55 may be provided in the auxiliary water receiver 54.

The cap 7 for the end of the sheath tube on the header side is effective for preventing domestic pests from entering the sheath tube,
As shown in FIG. 2, a small gap sufficient to prevent the passage of harmful insects may be provided between the end of the sheath tube 30 and the inside of the sheath tube 3 may be opened on the bottom surface of the water receiver 5 by this gap. . In addition, it is preferable that the leaked water around the header that drips on the water receiver 5 is drained directly from the water receiver 5 without flowing into the sheath pipe 3, and for this reason, the cap 7 penetrates in FIG. 1B. Hole 71, header side sheath tube end 30 in FIG. 2
Is positioned higher than the bottom surface of the water receiver 5.

Further, as shown in FIG. 4, each rising sheath tube end portion on the header side
The O-ring 61 is fitted into the insertion part 51 on the bottom surface of the water receiver 5 to insert 30. At this time, it is preferable that the opening for the water passage 4 of the water receiver 5 is provided with a rising portion 52 so that water leaking onto the water receiver 51 does not flow into the sheath pipe 3.

Further, as shown in FIG. 5, the insertion end of the rising sheath tube end portion 30 is located above the bottom surface of the water receiver 5, and the rising end portion 52 of the opening of the water receiver 5 is large enough for the sheath pipe end portion 30 to enter. A structure may be employed in which the rising portion 52 is covered with the cap 7 having a diameter and a spacer 72 on the back surface.

In the above-mentioned embodiment, the pipe end is the cullan, but a device such as a cooling / heating device may be the end. The sheath pipe is piped by embedding it in a slab, in a concrete pit, in a wall, or by laying it on a slab.For example, if the pipe end is a unit bath, the sheath pipe laid on the slab on the unit bath side and the slab on the header side A connection with the buried sheath tube is required. This connection must be made watertight. For example, as shown in FIG. 3, an O-ring is formed in the groove at the end of the corrugated pipe.
61 is fitted, this corrugated pipe end is press-fitted into the socket 9, a U-shaped stopper 62 is attached to the notch 91 of the socket end, and this stopper 62 is locked in the groove of the sheath tube 3. can do.

<Effects of the Invention> The piping system according to the present invention is configured as described above, and guides leaked water in the faucet device box to the water receiver using the sheath pipe as a guide, and leaks this leaked water from the water pipe in the sheath pipe. It can be combined with water and leaks from around the header to treat wastewater through a water receiver. Thus, unlike the cover, the water receiver has a flat shape, can occupy a small space, can be easily installed, and the header can be easily maintained and inspected. Further, since the leaked water of all the parallel pipes can be collected in the water receiver, the water leakage accident can be easily detected only by providing one water leakage detection / detection unit between the water receiver and the drainage point.

[Brief description of drawings]

FIG. 1A is an explanatory view showing an embodiment of the present invention, FIG. 1B is a sectional view showing an enlarged view in a dotted line frame B of FIG. 1A, and FIG. 1C.
Is a cross-sectional view taken along the line CC in FIG. 1B and FIG. 1D.
1A is a cross-sectional view showing the inside of the dotted-line frame D of FIG. 1A in detail, FIG. 2 is a cross-sectional view showing another example of the inside of the dotted-line frame B of FIG. 1A, and FIG. 3 is a sheath tube used in the present invention. FIGS. 4 and 5 are sectional views showing still another example of the portion inside the dotted line frame B of FIG. 1A, and FIG. 6 is an explanatory diagram showing a conventional example. 1 ...... header, 3 ...... sheath pipe, 4 ...... water passage pipe, received 5 ...... water, 82 ...... faucet box, 84 ...... fittings, P _1, P ₂ ...... packing.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Takahashi 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Masaharu Yata 2-14 Shineicho, Naka-ku, Nagoya-shi Kashima Construction Co., Ltd. Nagoya Branch (72) Inventor Hisao Kondo 2-14 Shin-eicho, Naka-ku, Nagoya-shi, Aichi Prefecture Kashima Construction Co., Ltd. Nagoya Branch (72) Inventor ▲ High ▼ Noriaki Naka-ku, Aichi Prefecture 2-14 Shineicho Kashima Construction Co., Ltd. Nagoya Branch (72) Inventor Yoji Kageyama 2-14 Shineicho Naka-ku, Nagoya-shi, Aichi Kashima Construction Co., Ltd. Nagoya Branch (72) Inventor Izu Hokuro Nagoya, Aichi Prefecture 3-135 (107), 1-107, Moritaka, Moriyama-ku, Japan (72) Inventor Shigeru Ando 82 (72), 280, Harimatacho, Moriyama-shi, Shiga Prefecture (72) Inventor Yoshitaka Miyoshi 13-3, Sugiura-cho, Otsu-shi, Shiga Prefecture (72) inventor Akihiko Sato Shiga Prefecture, Kurita-gun Ritto-cho, Hachiya address 214 (72) inventor Kazuhiro Morishima Kusatsu City, Shiga Prefecture Wakatake-cho, No. 6, No. 7 (56) Reference Patent flat 4-20619 (JP, A)

Claims (2)

[Claims] 1. A sheath pipe is piped from one header to a plurality of water faucet device connection boxes, and end portions of the sheath pipe on the header side are erected toward the header.
The water faucet device connection box side end of each sheath pipe is raised toward the box and its tip is watertightly connected to the box, and the water pipe is inserted into each of the above sheath pipes, and one end of each water pipe is inserted. Is connected to each branch port of the header, the other end of each water pipe is housed in each box, the other end of each water pipe in each box is connected to the faucet device through a joint, and the inside of each box is external. In contrast, the water receiver that is watertightly shut off, communicates with the inside of each sheath pipe, and has each sheath pipe insertion pipe portion on the bottom plate,
A piping system characterized by being watertightly attached to each rising sheath pipe on the header side in each sheath pipe insertion pipe portion, opening the inside of each sheath pipe to a water receiver, and providing a drain hole in the water receiver . 2. The cap according to claim 1, wherein a cap for the sheath pipe end is attached to the water passage pipe portion above each rising sheath pipe end on the header side, and above the bottom surface of the water receiver. A piping system in which the end of the sheath pipe is located and the inside of the sheath pipe is opened to the outside.