JP2527564Y2 - Indoor plumbing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an indoor water supply piping system using a plastic water pipe.

(Prior art)

Recently, flexible plastic water pipes have been used for indoor water pipes in order to simplify construction. This type of plastic water pipe generally has a double pipe structure in which a main pipe made of a flexible plastic straight pipe is housed in a sheath pipe made of a corrugated pipe. It is the main pipe that actually passes water, and the sheath pipe is a protective pipe.

The piping structure when using this double plastic water pipe is to install a header for equal water distribution with multiple pipe joints at the water supply source, with each pipe joint of this header and a water tap installed at various places indoors. Are connected by double plastic water pipes. Specifically, one end of the main pipe is connected to a pipe joint of the header, and the other end is connected to a water tap. The end of the sheath tube is fixed to a piping box or a structure near the end of the main tube.

〔Task〕

Conventionally, a leak detection system has not been established for such indoor water supply piping facilities, and it is difficult to confirm the presence or absence of leaks. For this reason, if a leak occurs, it can only be detected after a considerable amount of the leak has flowed into the wall or under the floor, and the damage is likely to be seriously damaged.

[Solutions to solve the problem]

The present invention has been made in order to solve the above-mentioned problems of the prior art, and has a configuration in which a header having a plurality of pipe joints is installed at a water supply source, and each pipe joint of the header and various places in a room. In an indoor water supply plumbing system in which a double plastic water pipe composed of a flexible main pipe and a sheath pipe is respectively piped between a water tap and a water faucet installed at the end of the header side of each of the sheath pipes, Is installed so as to be lower than the end on the faucet side and rise up toward the header, and at a connection portion between the main pipe and the member on the faucet side, a pipe through which water leaking from the connection portion flows into the sheath tube. A box is provided, and a connecting portion between the main pipe and the header fitting is provided with a cylindrical seal cap whose lower end is fitted to the end of the sheath pipe and whose upper end is fitted to the fitting of the header. Water spilled over the seal cap into the sheath tube The is characterized in that provided.

[Action]

In the above-mentioned indoor water supply plumbing equipment, if water leakage occurs, it is a connection portion between the main pipe and other members (such as a pipe joint of a header and a water tap). The leakage generated at the connection flows into the sheath tube, and the water accumulated in the sheath tube overflows from the overflow of the seal cap provided on the header side. Therefore, if the header is inspected, the presence or absence of water leakage can be confirmed.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. In the figure, reference numeral 11 denotes a header for equal water distribution installed at a water supply source of the house. The header 11 has a plurality of pipe joints 12. 13 is a water tap installed in the kitchen, bathroom, etc. of the house. A double plastic water pipe 14 is provided between the water tap 13 and the pipe joint 12 of the header 11, and the water pipe 14 is composed of a flexible plastic main pipe 15 and a sheath pipe 16. . One end of the main pipe 15 is connected to the pipe joint 12 of the header 11, and the other end is connected to a water tap 13 via an elbow 17. Further, one end of the sheath tube 16 is fitted to the elastic seal cap 18, and the other end is connected to the piping box 19.

The telescopic seal cap 18 is an upper cylindrical part
A bellows-like elastic portion 23 is provided between the lower tube portion 22 fitted to the sheath tube 16 and is made of rubber or plastic. Before connecting the main pipe to the pipe joint 12, the expansion / contraction seal cap 18 fits the lower tubular part 22 to the end of the sheath pipe 16. The connecting work is performed by contracting the elastic part 23 as in the second case. After the connection is completed, when the expansion and contraction portion 23 is extended and the upper tubular portion 21 is fitted to the pipe joint 12, it becomes like the other three in FIG. In this state, the connection between the pipe joint 12 and the main pipe 15 is covered by the elastic seal cap 18, so that water leakage from the connection flows into the sheath pipe 16. As shown in FIG. 2, the lower cylindrical portion 22 is provided with a water guide groove 24 and an overflow port 25 for guiding water overflowing from the end of the sheath tube 16 to the outside. The water guide groove 24 serves as an overflow outlet when the telescopic seal cap 18 is attached to the header 11 installed at the lower part as shown in the figure, but the telescopic seal cap 18 is connected to the water tap 13 installed at the higher part. When installed, it becomes an intake hole.

On the other hand, the piping box 19 covers the connection between the main pipe 15 and the elbow 17. Therefore, if water leaks at the connection between the main pipe 15 and the elbow 17, the water leaks into the sheath pipe 16. In other words, the piping box 19 and the elastic seal cap 18 function as a cover that allows water leakage to flow into the sheath tube.

The double plastic water pipe 14 is plumbed under the floor 26, and the header 11 is installed at a level higher than the floor 26 and lower than the hydrant 13. Header 11, especially for sheath 16
The height h from the floor surface of the end on the side is set lower than the height H from the floor surface on the end on the hydrant 13 side. Because of this sheath tube
The end of the header 11 on the side of the header 11 rises toward the header 11 as shown in the figure, and if water accumulates in the sheath tube 16 and overflows, the elastic seal cap 18 on the end of the header 11 must be used. Will overflow from the overflow outlet 25 provided in.

Therefore, by checking whether or not water is flowing out of the overflow 25, the presence or absence of water leakage can be checked.

The inspection is easy because the header 11 is usually installed on an indoor pipe shaft or the like where various meters are installed. Further, if a water blocking wall is formed so that water flowing out of the overflow 25 does not flow outside, damage due to water leakage can be more reliably prevented.

[Effect of the invention]

As described above, according to the present invention, when water leaks in the indoor water pipe system using a double plastic water pipe, it is collected in the sheath pipe and overflows from the overflow of the seal cap provided on the header side. , The presence or absence of water leakage can be detected by inspecting the header. In addition, since the water leak does not spread to a place other than the header portion, even if the water leak occurs, the damage can be minimized.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an indoor water supply piping system according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a telescopic seal cap used therein. 11: Header, 12: Fitting: 13: Water tap 14: Double plastic water pipe, 15: Main pipe 16: Sheath pipe, 17: Elbow 18: Telescopic seal cap (cover) 19: Piping box (cover) 25: Overflow, 26: floor

Claims (1)

(57) [Scope of request for utility model registration] 1. A header (11) having a plurality of pipe joints (12) is installed at a water supply source, and each pipe joint (12) of the header (11) and a water tap (13) installed at various places in a room. In the indoor water supply piping system in which a double plastic water pipe (14) composed of a flexible main pipe (15) and a sheath pipe (16) is piped between the sheath pipe (16) The end of the header (11) side is set lower than the end of the hydrant (13) and rises toward the header (11). The main pipe (15) and the hydrant (13) side A connecting box for connecting the main pipe (15) and the header (11) is provided with a pipe box (19) for allowing water leakage from the connecting section to flow into the sheath pipe (16). A cylindrical seal cap (18) whose lower end is fitted to the end of the sheath tube (16) and whose upper end is fitted to the pipe joint (12)
An indoor water supply pipe facility, characterized in that an overflow port (25) of water accumulated in the sheath tube (16) is provided in the seal cap (18).