JPH03183311A - Cable laying equipment for buried pipes - Google Patents

Abstract

PURPOSE:To prevent a cable from being damaged or slacked by providing a laying equipment consisting of a robot travelling along the inner surface of an underground piping, a cutter for making a groove, a cable inserter, a nozzle for filling in the groove with a resin and a brush. CONSTITUTION:When a robot 3 travels along an upper inside wall 1A of an underground piping 1, a cutter 4 makes a groove 1B for laying a cable in the upper inside wall 1A of the underground piping 1. Then, a cable 5 is supplied into the underground piping 1 from the front end of the robot 3 of the underground piping 1, and inserted in the groove 1B by a cable inserter 6. Then, a resin 7 is put from a nozzle 8 in the groove 1B with the cable 5 inserted therein, and the cable 5 is fixed in place. And the surface of the resin 7 is made flat by a brush 9.

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a cable laying device for a buried pipe, and in particular, to a device for reliably laying a cable within the inner wall surface of a part of a buried pipe in the axial direction of the cable. The present invention relates to a cable laying device for buried pipes that can be installed.

[Conventional technology]

BACKGROUND ART In recent years, when laying communication cables or electric cables (hereinafter simply referred to as cables), the 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 wall 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.

In other words, because the cable is exposed from the buried pipe, the cable may be damaged by the fluid flowing inside the buried pipe, solid matter, or hydrogen sulfide generated from the fluid, or the cable is fixed at points every few meters. This causes slack in the cable.

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 provides a robot that travels along the upper inner wall surface of the buried pipe using a wire stretched in the axial direction of the buried pipe as a guide, and a robot that runs along the upper inner wall surface of the buried pipe, and a cutter for cutting a groove for burying the cable in the inner wall surface of the tube; a cable insertion means provided on the upstream side in the traveling direction of the robot for inserting the cable into the skin cut by the cutter; a resin filling nozzle attached to the robot for filling the groove into which the cable is inserted with resin;
The present invention is characterized by comprising a brush attached to the robot for leveling the surface of the resin filled in the groove.

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 an embodiment of the buried pipe cable laying device of the present invention, and FIG. 2 is a plan view of the same device.

As shown in FIGS. 1 and 2, the buried pipe cable laying device of the present invention uses a wire 2 stretched in the axial direction of the buried pipe 1 as a guide to connect the upper inner wall surface IA of the buried pipe 1. a cutter 4 for cutting a groove IB for burying the cable in the inner wall surface IA of the buried pipe 1, which is provided on the downstream side in the traveling direction of the robot 3, and a cutter 4 on the upstream side in the traveling direction of the robot 3. cable insertion means 6 for inserting the cable 5 into the groove IB cut by the cutter 4 provided in the robot 3; It consists of a resin filling nozzle 8 for filling the groove IB, and a brush 9 attached to the robot 3 for leveling the surface of the resin 7 filled in the groove IB.

The robot 3 has a pair of suction belts 11 arranged endlessly between belt pulleys 10. The suction belt 11 has a plurality of rubber pads 12 spaced apart in its moving direction.
is provided. The rubber pad 12 is attracted to the inner wall surface IA of the buried pipe by suctioning the air therein through the hose 13. As the robot 3 moves, the rubber pads 12 from which air is sucked are sequentially replaced. As a result, the robot 3 runs along the upper inner wall surface IA of the buried pipe j without falling.

The cable insertion means 6 inserts the cable 5 into the buried pipe 1 from the upstream end of the buried pipe 1 in the running direction of the robot 3 into the buried pipe l.
It consists of a turn roller 14 for folding back 0 degrees, and a pushing roller 15 for pushing the cable 5 folded back by the turn roller 14 into the groove IB cut by the cutter 4.

Note that if a cable protection tube having a plurality of cable insertion holes is laid on the inner wall surface of the buried pipe 1 instead of the cable 5, the cable 5 can be easily repaired and expanded.

According to the buried pipe cable laying device of the present invention configured as described above, the cable 5 is laid on the upper inner wall surface IA of the buried pipe 1 in the following manner.

When the robot 3 is guided by the wire 2 and travels along the upper inner wall surface IA of the buried pipe 1, a groove 1B for burying the cable is cut in the upper inner wall surface IA of the buried pipe 1 by the cutter 4. Next, the robot 3 of the buried pipe I is placed in the groove IB.
The cable 5 supplied into the buried pipe 1 from the upstream end in the running direction is inserted by the cable insertion means 6. Next, the groove IB into which the cable 5 was inserted is filled with resin 7 from the nozzle 8, and the cable 5 is fixed. Finally, the surface of the resin 7 is leveled with a brush 9.

In this way, cable 5 is a buried pipe! Upper inner wall surface I of
Automatically laid along A.

By laying the cable 5 on the upper inner wall surface of the buried pipe 4, the fluid flowing inside the buried pipe 4 does not come into direct contact with the groove IB, so that damage to the cable 5 can be more reliably prevented.

〔Effect of the invention〕

As explained above, according to this invention, the cable is
Since the cable is securely laid within the upper inner 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, and FIG. 2 is a plan view of the same device. In the drawings, 1-Buried pipe, 3-Robot 1, 5-Cable, 7-Resin, 9-Brush, 11-Adsorption belt, 13-Hose, 15-Press roller, 2-Wire 4-Cutter 6-Cable Insertion means, 8-nozzle, 10-belt, 12-rubber butt, 14--turn roller 16-hose.

Claims (1)

[Claims] (1) A robot that travels along the upper inner wall surface of the buried pipe using a wire stretched in the axial direction of the buried pipe as a guide, and a robot that is provided on the downstream side of the robot in the traveling direction of the buried pipe. a cutter for cutting a groove for burying a cable in the inner wall surface of the robot; a cable insertion means for inserting a cable into the groove cut by the cutter, provided on the upstream side in the traveling direction of the robot; a resin filling nozzle attached to the robot for filling the groove into which the cable is inserted with resin; and a resin filling nozzle attached to the robot for leveling the surface of the resin filled in the groove. A cable laying device for buried pipes, comprising a brush.