JPS6352616A - Apparatus for installing cable in sewerage duct - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a cable installation device for a sewer pipe.

(Prior art) Conventionally, when installing a cable in a sewer pipe that already has water, it was necessary to fix a protection pipe such as an Eflex pipe or a conduit pipe to the ceiling or side wall of the pipe using a fixing metal fitting. The cables were installed by running wires through them.

(Problem that the invention attempts to solve) Fixing fixtures and protection pipes inside sewer pipes.

Installation took time and effort due to the special location, and when extending the cable it was necessary to take sufficient care and measures to avoid damaging the sheath surface.

In other words, you can fix the cable directly, or fix the conduit and fix the cable and E-flex inside it, and install the fixing fittings for both cables, but each hole has a hole in the wall. Two lights are required, making it difficult to attach to the upper part of the wall. Furthermore, in any case, when attaching the fixing fittings, multiple workers were required, with one worker holding the cable and conduit Eflex, and the other person fixing the fittings.

In addition, sufficient care was required when fixing two cables to each other so as not to damage the cable sheath.

[Structure of the invention]

(Means for solving problems) The present invention will be explained with reference to FIGS. 1 and 2.

The floats 1 are connected at equal intervals with connecting wires 3, and the t-cables 2 are fixed to the floats 1. Perform this work on the ground surface in advance. Inside the sewer pipe, float fixing fittings 9 are attached to the side wall 6 at the same intervals as the floats 1. A worker holds the wire or cable at the tip of the float 1 and extends it inside the pipe, and fixes the float 1 to a predetermined float fixing metal fitting 9 with a float fixing wire 4.

(Function) Since the floats 1 are connected by connecting wires, no abnormal tensile force is applied to the cable 2. In addition, the worker must pull the wire while the float 1 is floating on the water surface. Since the float 1 is fixed by the conduit fixing wire 4, it will not be carried away by the flow velocity when the installation is completed, and will follow the upward and downward fluctuations of the water surface. still.

By changing the lengths of both pipe fixing wires 4, they can be biased toward one wall surface and fixed to a portion where the flow velocity is slower than the center so as not to interfere with the integrity of the pipe.

(Example) An example of the embodiment will be explained with reference to FIGS. 3 to 5.

The floating body 11 is made of a lightweight, strong material with as much buoyancy as possible. The shape is such that there is little resistance to the flow velocity, and connecting tools 12 are provided at the front and rear of 2, wall fixtures 13 are provided on the left and right sides, and cable fixtures 14 are provided at the top. Make the bottom part slightly wider for better stability. An example of a floating fixture is shown in FIGS. 6 and 7. It consists of a fixed part 15 and a movable part 16, and the floating fixing wire 4 is passed through this movable part 16 and fixed.

Float 1 is connected with connecting wire 3, cable 2 is fixed to float 1 on the ground surface, and this wire is carried down from the manhole into the pipe culvert. This means that the float 1 floating on the water surface will be drawn. At this time, there is no particular consideration given to measures against damage to the cable, and the only thing to do is to be careful not to let the cable hit the edge of the manhole.

The float 1 in the pipe conduit is fixed to the wall surface with a fixing metal fitting 9 and a fixing wire 4 at a place where a predetermined wire is extended. Since the fixing fittings 9 are attached in advance, the cable installation time within the pipe can be shortened. Moreover, since this fixing metal fitting 9 has only one hole, it also reduces labor.

According to the present invention, the installation time in the sewer pipe is shortened, the labor required is reduced, and the consideration for cable damage during line extension is also reduced.

When replacing the cable, it can be easily removed by removing the wall fixing wire and pulling it up from the manhole in the same way as when it was installed, and then reinstalling it using the wall fixing bracket.

〔Effect of the invention〕

(g) Cables can be easily fixed in the pipe, reducing work time.

■ Labor is reduced because the line within the culvert floats on the floating water surface.

■ When extending the cable, by pulling the connecting wire, no excessive force is applied to the cable, reducing damage.

(2) It can be removed by removing the fixed wire, making it quick to replace the cable, and easy to re-install.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a cable installation device showing an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the ■-■ arrow in Fig. 1, Fig. 3 is a side view of the float, and Fig. 4 is a 5 is a plan view of FIG. 3, FIG. 6 is a side view of the floating fixture, and FIG. 7 is a front view of FIG. 6. 1... Float 2... Cable 3... Float connecting wire 4... Float fixing wire 9... Float fixing fitting 11... Float body agent Patent attorney Noriyoshi Chika Yudo Hirofumi Mitsumata No. 1 Figure 2/J Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] A float with wires connected to the front and back, wires connected to both sides, and a cable fixed to the top, wires connecting the floats at arbitrary equal intervals, and cables fixed to the top of the float. A cable laying device for a sewage pipe, comprising a metal fitting for fixing the float to a side wall of the sewer pipe in a state in which the float is fixed to a side wall of the sewer pipe, and a wire for connecting the float and the metal fitting.