JPH03183310A - Cable laying equipment for buried pipes - Google Patents

Abstract

PURPOSE:To prevent a cable from being damaged or slacked by using a laying device consisting of a cutter carrier for making a groove in the inside surface of an underground piping, a cable drum carrier drawing out the cable into the groove and a fixing material filling carrier. CONSTITUTION:A cutter carrier 1 has a cutter 6 and travels inside an underground piping 4. The cutter 6 makes a groove 9 in which a cable 8 is laid, in the inside surface of the underground piping 4. A cable drum carrier 2 has a drum 11 with the cable 8 wound thereon, and travels inside the underground piping 4. A fixing material filling carrier 3 has a nozzle 13 for supplying a fixing material, and a brush 14, and travels inside the underground piping 14. The fixing material filling carrier 3 inserts the cable 8 into the groove 9 and, then, fills in the groove 9 with a quick-drying concrete or a resin supplied from the nozzle 13 to fix the cable 8 in place, and makes the surface of the concrete in the groove 9 flat by the brush 14.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a cable laying device for buried pipes, and particularly to a cable laying device for buried pipes, which can reliably lay a cable in the wall of a buried pipe along its axial direction. This invention relates to a pipe cable laying device.

[Conventional technology]

BACKGROUND ART In recent years, when laying communication cables or salt cables (hereinafter simply referred to as cables), communication cables are often laid inside underground pipes such as sewer pipes in order to reduce installation costs.

In the case of large diameter pipes, this method can be done manually or by
In the case of small-diameter pipes, a method such as using a robot to fix the cable with an anchor along the upper inner surface of the buried pipe is used. Hereinafter, this method will be referred to as prior art.

[Problem to be solved by the invention]

However, the above-mentioned prior art had the following problems.

That is, the cable may be damaged by the fluid or solid matter flowing inside the buried pipe, or hydrogen sulfide generated from the fluid, or the cable may become slack because the cable is fixed at several meter intervals.

Therefore, an object of the present invention is to provide a cable laying device for buried pipes in which there is no risk of the cables being damaged by fluids flowing in the buried pipes, solid objects, or hydrogen sulfide generated from the fluids, or the cables becoming sagging. It is about providing.

[Means to solve the problem]

The present invention includes a cutter truck for cutting a groove on the inner surface of a buried pipe along the axial direction of the buried pipe, and a cutter truck for feeding out a cable into the groove, which is connected to a downstream side in a traveling direction of the cutter truck. A cable drum truck and a cable fed out from the cable drum connected to the downstream side in the traveling direction of the cable drum truck are inserted into the groove, and the groove into which the cable is inserted is filled with a fixing material. and a fixing material filling truck for fixing the cable.

Next, one embodiment of the buried pipe cable laying device of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing one embodiment of the buried pipe cable laying device of the present invention.

As shown in FIG. 1, the buried pipe cable laying device of the present invention includes a cutter truck 1, a cable drum truck 2 connected to the downstream side in the traveling direction of the cutter truck 1, and a cable drum truck 2 connected to the downstream side in the traveling direction of the cable drum truck 2. Each trolley 1.2.3 is connected to each other by a wire 5 made of a spring so as to follow the bending of the buried pipe 4 and run smoothly. There is.

The cutter truck 1 has a cutter 6 on its upper part, and travels inside the buried pipe 4 via wheels 7. The cutter 6 cuts the cable 8 along the inner surface of the buried pipe 4 along its axial direction.
Cut a groove 9 for embedding. The cutter cart 1 is continuously pulled from one end of the buried pipe 4 to the other end by a wire 10 fixed to its tip.

The cable drum truck 2 has a drum 11 around which the cable 8 is wound, and runs inside the buried pipe 4 via wheels I2.

The fixing material filling cart 3 has a fixing material supply nozzle 13 and a brush 14, and travels inside the buried pipe 4 via wheels 15. The fixing material filling truck 3 inserts the cable 8 let out from the cable drum truck 2 into the groove 9 cut by the cutter truck l, and then inserts the nozzle 13 into the a9.
The cable 8 is fixed by continuously filling with quick-drying concrete or resin, and then the groove 9 is filled with a brush I4.
Level the concrete inside.

Each truck 1.2.3 is supplied with power from a power cable 16.

Incidentally, if a cable protection pipe having a plurality of cable insertion holes is laid in the buried pipe 4 instead of the cable 8, the cable 8 can be easily repaired and expanded.

According to the cable laying device configured in this way,
The cable is laid within the pipe wall of the buried pipe in the following manner.

A groove 9 is cut in the upper inner surface of the buried pipe 4 along its axial direction by a cutter 6 of a cutter cart 1 pulled by a wire IO. The cables 8 let out from the drum 11 of the cable drum truck 2 are sequentially inserted into the grooves 9 by the fixing material filling truck 3, and then a fixing material such as quick-drying concrete or resin is poured into the grooves 9 from the nozzle 13. It is filled continuously and finally the surface of the fixing material is leveled by the brush 14. In this way, the cable 8 is laid within the pipe wall of the buried pipe 4.

The location where the cable 8 is laid within the pipe wall of the buried pipe 4 is not particularly limited, but it is preferably at the top of the buried pipe 4 so that the fixing material does not come into contact with the fluid inside the buried pipe 4.

〔Effect of the invention〕

As explained above, according to this invention, the cable is
Since the cable is securely laid within the pipe wall of the buried pipe, there is no risk of the cable being damaged by the fluid or solid matter flowing inside the buried pipe, or hydrogen sulfide generated from the fluid, or causing the cable to become sagging. This brings about useful effects such as:

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the buried pipe cable laying device of the present invention. In the drawings: 1- cutter truck, 2 cable drum truck, 3-
Fixed material filling trolley, 4-buried pipe, 5.10-wire 6-cutter 7, I2, I5-wheel, 8-cable, 9-groove,
11-drum 13 nozzle, 14-brush, 16-power cable.

Claims (1)

[Claims] (1) A cutter truck for cutting a groove on the inner surface of the buried pipe along the axial direction of the buried pipe, and a cable connected to the downstream side in the traveling direction of the cutter truck for feeding the cable into the groove. A drum truck and a cable fed out from the cable drum connected to the downstream side in the traveling direction of the cable drum truck are inserted into the groove, and the groove into which the cable is inserted is filled with a fixing material. A cable laying device for buried pipes, comprising: a fixing material filling truck for fixing the cable;