JPH02138590A - Connecting method of multifunctional piping - Google Patents

Abstract

PURPOSE:To enable the watertight connection of pipings by watertightly providing an inserted pipe having a through port inserting a communication cable in the end part of a protecting pipe for inserting the communication cable laid on the inner surfaces of the pipings connected to each other between their flanges. CONSTITUTION:A protecting pipe 4 inserting a communication cable 2 is disposed on the inner surface of a piping 1 with being buried in a liner material 3. The pipings 1 are watertightly connected to each other through a packing 10 between their flanges 6. The both end parts of an inserted pipe 11 installed to the packing 10 are closely inserted into the protecting pipe 4 end parts. The inserted pipe 11 has a through port inserting the communication cable 2. Consequently, the pipings themselves can be watertightly connected to each other, and the inserting part of the communication cable can be continuously formed in the watertight state.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to multifunctional piping having a fluid transport function and a communication function, and particularly to a method for connecting multifunctional piping in which a communication cable is disposed inside the piping. be.

[Prior Art] Recently, attempts have been made to transmit various information between a sewage treatment plant and a pumping station using, for example, a sewage pipe.

In this case, one method is to lay a dedicated protection pipe for communication cables outside the fluid transport piping and run the communication cables through it, but in this case, the area outside the pipe will be exclusively occupied. There are problems such as the need for maintenance of the protection tube, etc. Therefore, it is recommended to bury the communication cable directly in the lining material, liner material, etc. on the inner surface of the pipe, or to bury the protection tube and connect the communication cable inside it. Methods such as passing cables through are being considered.

[Problem to be solved] By the way, piping is generally constructed by connecting pipes of a predetermined length, and if a communication cable is placed inside the piping in a watertight state, the communication cable will also be watertight at the piping connection. Although it is necessary to connect with

An object of the present invention is to provide a method for connecting the multifunctional piping described above.

[Means for Solving the Problems] The multifunctional piping connection method of the present invention connects the piping by interposing a packing between the flanges of the connecting piping, and at the same time, a communication cable laid on the inner surface of the piping is inserted. The protection tube is connected by watertightly inserting an insertion tube having a through hole through which a communication cable is inserted into the end of the protection tube.

[Operation] The pipes themselves are connected in a liquid-tight manner by tightening the packing interposed between the pipe flanges with a fastener.

On the other hand, by watertightly inserting both ends of the insertion pipe through which the communication cable insertion hole is penetrated into the ends of the protection pipe through which the communication cable laid on the inner surface of the pipe is inserted, at the pipe connection part, A protective tube portion through which a communication cable is inserted is continuously formed. In this way, the piping is connected in a watertight manner, and the insertion portion for the communication cable is continuously formed in a watertight state.

[Example] Hereinafter, one example of the method of the present invention will be described with reference to the drawings.

A protective tube 4 through which a communication cable 2 is inserted into the inner surface of the pipe 1 to be connected is embedded in a liner material or a running material 3.

By interposing the packing 10 between the flanges 5 of the pipe 1 and tightening them, the pipes themselves can be connected watertightly.

A hole 1 into which the insertion tube 11 is attached to the inside of the packing 10
0a is open. This insertion tube 11 has a through hole 12 through which the communication cable 2 is inserted, and its outer diameter is such that it can be tightly inserted into the protective tube 4. Then, by tightly inserting both ends of the insertion pipe 11 attached to the packing 1o into the ends of the protection pipe 4 laid on the inner surface of the pipe 1, a watertight protection pipe part is continuously formed at the pipe connection part. can be formed. In this way, the piping is connected in a watertight manner, and the insertion portion for the communication cable is continuously formed in a watertight state.

[Effects of the Invention] The multi-functional piping connection method of the present invention is as described above, which allows the piping itself to be connected watertightly in a simple manner, and at the same time connects the communication cable insertion portion continuously in a watertight state. It can be formed by

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing an example of the connection state of multifunctional piping connected by the method of the present invention, and Figures 2 and 3 are a cross-sectional view and a front view of the packing with the plug-in pipe attached. be. Figure 1 Applicant's agent Patent attorney Takehiko Suzue Figure 2 Figure 3

Claims (1)

[Claims] A plug-in tube that connects the piping by inserting a packing between the flanges of the connecting piping, and has a through hole for the communication cable to be inserted into the end of the protective tube, which is laid on the inner surface of the piping. A method for connecting multifunctional piping, characterized in that the protection pipe is connected by watertightly inserting the protective pipe.