JPH0631338U - Cable laying specialist with communication line - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to easily add a communication path by using a laying pipe. [Structure] Partition plates 10A, 10B, 10C for dividing the inside of the laying pipe into a predetermined number of slot spaces are formed by extrusion molding in the length direction of the cable laying spacer 10, and the cable is provided inside each of the partition plates 10A, 10B, 10C. Communication lines 40A, 40B, 4 in the length direction of the laying spacer 10
By burying 0C, the cable laying spacer 10
The communication lines 40A, 40B, 40C can be laid simultaneously with the laying.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spacer for laying a pipe inside a pipe for effectively using a laying pipe laid in a joint gallery or a tunnel gallery.

[0002]

[Prior art]

 Various pipes are laid in advance in the tunnels or inside the underground tunnels, etc., and power lines and communication lines are laid using these pipes. FIG. 4 shows the inside of such a joint mine. A plurality of relatively thin laying pipes 1A, 1B, 1C, 1D and a plurality of relatively thick laying pipes 2, 3, etc. Now, for example, the power line is the laying pipe 2 and the telephone line is inserted into the laying pipe 3 later. Also, when a new communication path is set up as a long-distance trunk line, the cable 4 is inserted later into the vacant laying pipes 1A, 1B, 1C, ... It is designed to handle the increase in volume. Also, when laying communication lines for work meetings, etc., the laying work was performed in the same process as the laying work of the power lines and communication lines described above.

[0003]

[Problems to be solved by the device]

 By the way, in the information society of recent years, various types of communication lines have been added so that more advanced communication information can be transmitted, and it is required to install communication cables in excess of the number of pipes that have been conventionally planned. . In particular, optical fiber cables that can transmit a large amount of information have a larger transmission amount than conventional communication cables, and the diameter of the cables has been reduced, so it is not possible to lay such cables. Significantly, inserting a new cable into a conventionally installed communication cable pipe may adversely affect the characteristics of the optical fiber cable because the cables cross each other in the pipe. , It is extremely difficult to work on, and work efficiency is extremely poor. Also, since the construction work of telecommunications cables such as telephone communication is a work in a remote place, a meeting line is indispensable, but for that purpose work for laying a meeting line is necessary. . Therefore, for example, even when simply laying a telephone line, two lines, a telephone line and a meeting line, had to be laid. Moreover, when the telephone line was laid, the batting line was no longer needed and had to be removed, requiring an extra laying process and laying costs.

[0004]

[Means for Solving the Problems]

 The present invention has been made for the purpose of solving such a problem, and has a plurality of partition plates having an outer diameter smaller than the inner diameter of the laying pipe and dividing the laying pipe into predetermined slot spaces. Alternatively, the partition part of the through hole is formed by extrusion molding in the length direction of the spacer, and the communication line is embedded in the partition plate or the partition part of the through hole in the spacer length direction. By inserting this split spacer into the pipe, multiple communication cables can be smoothly inserted into one pipe, and the cable laying spacer and the communication line are integrated. Therefore, by inserting the spacer into the laying pipe, the communication line can be inserted into the laying pipe at the same time.

[0005]

[Action]

 Since the split spacer of the present invention can be formed by extruding plastic such as vinyl or polyethylene so as to divide the space in the pipe into a plurality of passages, the split spacer can be installed inside the pipe when installing the pipe. By inserting it, two or more communication cables can be inserted into one pipe when necessary, and the cables can be laid efficiently. Further, the communication line is embedded in the length direction of the spacer inside the partition plates or the partition parts of the through holes for dividing the laid pipe into a predetermined number of slot spaces. At the time of laying, the laying spacer with the communication line is inserted into the pipe to simultaneously lay the communication line. Also, it can be used as a communication line even after the piping is installed.

[0006]

【Example】

 FIG. 1 shows an example of a cable laying spacer with a communication line according to the present invention, and 10 is a spacer formed by extruding plastic. The spacer 10 is integrally formed with three partition plates 10A, 10B, 10C extending in the radial direction from the center, and the outer dimensions thereof are slightly smaller than the inner diameter of the pipe shown by the one-dot chain line. Is set to. Further, the striking lines 40A, 40B and 40C are embedded in the respective partition plates 10A, 10B and 10C in the length direction of the spacer. A wire rope 11 having a twisted wire is attached to the shaft of the spacer 10 during extrusion molding. The length of this split spacer is 200 to 300 m, and it is wound on a drum and moved to the work site.

As shown in FIG. 2, when one communication cable 20A is already laid in the laying pipe 20 arranged in the common mine, the communication of the present invention as shown in FIG. The lined split spacer 10 is inserted into the laid pipe. As for the insertion method, as in the case of cable laying work, first introduce the introducing wire through the laying pipe, connect this introducing wire and the wire rope 11 of the split spacer 10, and enter the communication line from the exit side. This is done by pulling out the split spacer. At this time, the existing communication cable 20A will be accommodated within the area surrounded by the partition plates 10A and 10B of the split spacer 10, and the inside of the laying pipe 20 will be large enough to accommodate one communication cable. Spaces 20B and 20C having a size are formed.

[0008] Therefore, when inserting a new cable into the existing installed pipe, the introduction wire is inserted into the space 20B or 20C, and the new cable connected to the introduction wire is pulled out so that the inside of the same pipe is not pulled out. Communication channels will be added to. In this case, since the spacer 10 separates the new cable and the existing cable 20A, it is possible to eliminate the obstacle that the cables come into contact with each other when they are pulled out, making it difficult to pull them out. Furthermore, since the striking lines 40A, 40B, 40C are embedded in the respective partition plates 10A, 10B, 10C in the length direction of the spacer, when the spacers are inserted, the striking lines 40A, 40B, 40C can also be installed. Then, when the new cables (20B, 20C) are inserted into the pipe using this meeting line, various kinds of work meetings can be carried out. Therefore, it is not necessary to lay a connecting line for the laying work in advance, which has advantages that the laying process can be omitted and the laying work cost can be reduced. Also, the number of connecting line cables provided inside each of the partition plates 10A, 10B, and 10C is not limited to one, and a plurality of communication lines can be embedded.

FIG. 3 shows a cable laying spacer according to another embodiment of the present invention. The spacer 30 is constructed so that its outer shape is substantially similar to the inner diameter of the laying pipe. ing. Then, three cable insertion grooves 30A, 30B, 30C are formed therein during extrusion molding of the plastic material. Further, in the partition portions 31A, 31B, 31C for partitioning the cable insertion grooves 30A, 30B, 30C, the connecting lines 40A, 40B, 40C are embedded in the length direction of the spacer.

In the case of this embodiment, when laying a laying pipe, if a cable laying spacer containing a communication line is inserted into the laying pipe in advance, three telecommunications cables can be connected by one laying pipe. You will be able to protect. Also in this embodiment, since the striking lines 40A, 40B and 40C are embedded inside the respective partition parts 31A, 31B and 31C, when a spacer is inserted as in the first embodiment. At the same time, the striking lines 40A, 40B, 40C can be attached, which has the advantage that the step of laying the striking lines can be omitted and the laying cost can be reduced. Further, not only one but a plurality of communication lines can be embedded inside the partition sections 31A, 31B, 31C.

[0011]

[Effect of device]

 As described above, the cable laying spacer with a communication line of the present invention can divide an existing or newly installed pipe along its length, so that the laying pipe can be used to create a communication path. It has the advantage that it can be easily added. In addition, workability is improved when a new cable is inserted into an existing installation pipe, and it is especially effective for the installation of optical fiber cables where the characteristics may deteriorate due to external pressure or tensile force. It Furthermore, since the communication line is embedded in the partition plate or the partition section in the length direction of the spacer, the construction of the communication line for meetings etc. that had to be done in advance and after the work was completed As a result, it is possible to omit the removal work, and as a result, it is possible to omit the laying process and reduce the laying cost, and if the spacer is laid, the communication line can be used anytime next time. There is also an advantage.

[Brief description of drawings]

FIG. 1 is a case with a communication line showing a first embodiment of the present invention.
It is a partial perspective view of a bull laying spacer.

FIG. 2 is an explanatory diagram showing a method of using a divided spacer.

FIG. 3 is a case with a communication line showing a second embodiment of the present invention.
It is a partial perspective view of a bull laying spacer.

FIG. 4 is an explanatory view of a laying pipe installed in an underground gallery.

[Explanation of symbols]

 10, 30 Split spacers 10A, 10B, 10C Partition plates 40A, 40B, 40C Communication line 20 Laying pipes 30A, 30B, 30C Cable insertion groove 31A, 31B, 31C Partition section

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shuzo Shiroyama 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Hideo Arai 1-16-10 Dogenzaka, Shibuya-ku, Tokyo Within Japan Ocean Submarine Cable Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. An outer shape smaller than the inner diameter of the laid pipe,
A plurality of partition plates for dividing the inside of the laid pipe into a predetermined number of slot spaces are formed by extrusion molding in the length direction of the spacer, and communication for meeting in the length direction of the spacers inside the partition plate. A laying spacer with a communication line, which is characterized by having embedded lines. 2. An outer shape smaller than the inner diameter of the laying pipe,
A plurality of through holes that divide the inside of the laying pipe into a predetermined number of slot spaces are formed by extrusion molding in the length direction of the spacer, and inside the partition of the through hole, in the length direction of the spacer. A laying spacer with a communication line, which has a communication line embedded for meetings.