JPH03182019A - Cable laying equipment for buried pipes - Google Patents

Abstract

PURPOSE:To prevent a cable from being damaged and sagging by composing a cable laying apparatus of a cutter carriage to cut a groove along the axial direction of a buried pipe and a fixing material filling carriage to insert a cable into the groove and fill a fixing material. CONSTITUTION:A groove 8 is cut in the upper inner surface of a buried pipe 3 along the axial direction of the pipe by a cutter 5 of a cutter carriage 1 drawn by a wire 9. A cable 7 which is supplied from the tip part of the buried pipe 3 to the buried pipe 3 is successively inserted into the groove 8 by a fixing material filling carriage 2. Then, the groove 8 is filled continuously with a fixing material 13 supplied from a nozzle 10 and finally the surface of the fixing material 13 is uniformly levelled by a brush 11. In this way, the cable 7 is laid in the wall of the buried pipe 3.

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 electric 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 in 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]

This invention includes 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 cutter truck connected to the downstream side in the traveling direction of the cutter truck, which extends from the tip of the buried pipe into the buried pipe. A fixing material filling cart for inserting a cable supplied to the cable into the groove, and filling the fixing material into the groove into which the Keple is inserted to fix the cable. It is something that you have.

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 consists of a cutter truck 1 and a fixing material filling truck 2 connected to the downstream side of the cutter truck 1 in the traveling direction. The fixing material filling cart 2 is connected to each other by a wire 4 made of a spring so as to follow the bending of the buried pipe 3 and run smoothly.

The cutter cart 1 has a cutter 5 on its upper part, and travels inside the buried pipe 3 via wheels 6. The cutter 5 cuts the cable 7 into the inner surface of the buried pipe 3 along its axial direction.
Cut a groove 8 for embedding. The cutter cart 1 is continuously pulled from one end of the buried pipe 3 to the other end by a wire 9 fixed to its tip.

The fixing material filling trolley 2 has a fixing material supply nozzle 1O and a brush 11, and travels inside the buried pipe 3 via wheels 12. The fixing material filling truck 2 inserts the cable 7 supplied from the tip of the buried pipe 3 into the buried pipe 3 into the cut 7118 cut by the cutter truck l, and then fills the groove 8 with quick-drying concrete from the nozzle 10. Alternatively, the cable 7 is fixed by continuously filling the fixing material 13 made of resin, and the fixing material 13 in the groove 8 is leveled with the brush 11.

Power is supplied to the cutter truck 1 and the fixing material filling truck 2 from a power cable 14.

Incidentally, if a cable protection tube having a plurality of cable insertion holes is laid in the groove 8 instead of the cable 7, the cable 7 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 8 is cut in the upper inner surface of the buried pipe 3 along its axial direction by a cutter 5 of a cutter cart I pulled by a wire 9. The cable 7 supplied from the tip of the buried pipe 3 into the buried pipe 3 is sequentially inserted into the groove 8 by the fixing material filling cart 2, and then a fixing material 13 such as quick-drying concrete or resin is inserted into the groove 8. is continuously filled from the nozzle 10, and finally, the surface of the fixing material 13 is leveled by the brush 11. In this way,
The cable 8 is laid within the pipe wall of the buried pipe 4.

The location where the cable 7 is laid inside the pipe wall of the buried pipe 3 is not particularly limited, but it is necessary to install the cable 7 in the pipe wall of the buried pipe 3 so that the fixing material 12 filled in the groove 8 does not come into contact with the fluid inside the buried pipe 3. The upper part is preferable.

〔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 along its axial direction, the cable will not be damaged by the fluid flowing inside the buried pipe, solid objects, or hydrogen sulfide generated from the fluid, or the cable may be damaged. A useful effect is that there is no risk of sagging.

[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: l - cutter truck, 2 - fixing material filling truck, 3 - buried pipe, 4.9 - wire 5 cutter 6
．． 12 wheels, 7 cables, skin, O nozzle, 1 brush, 3 fixing material, 4 power source.

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 cutter truck connected to the downstream side in the traveling direction of the cutter truck, which cuts a groove from the tip of the buried pipe into the buried pipe. The present invention is characterized by comprising a fixing material filling cart for inserting the supplied cable into the groove, and filling the fixing material into the groove into which the cable is inserted to fix the cable. Cable laying equipment for buried pipes.