JP2585187Y2 - Ground laid pipe system - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terrestrial laid pipeline device for housing communication equipment.

[0002]

2. Description of the Related Art Conventionally, communication cables are often buried underground due to construction problems, conditions, environment and the like. 8A and 8B show a conventional pipeline, in which FIG. 8A shows a state of a pipeline, a pipeline 1 is disposed underground, and 2 shows a manhole.
(B) shows the state of the gutter, 3 is a cut-out, 4 is an earth retaining sheet pile, 5 is a belly, 6 is a storage pipe, and 7 is a spare pipe. Conventional underground pipes require a planned number of pipes (pipelines) and spare pipes for maintenance because of the concealment process. This requires a large amount of digging and laying groundwater, and groundwater is mixed into the pipeline. Therefore, laying of a freeze-prevention PE pipe is indispensable in a place where the burial depth is shallow, and there is a drawback in that the construction cost is high.

[0003]

SUMMARY OF THE INVENTION The present invention has been proposed in order to improve the above-mentioned drawbacks. The purpose of the present invention is to eliminate the need for excavation and to increase spare pipes when necessary. It is another object of the present invention to provide a low-cost ground-installed pipeline apparatus which can prevent the influence of freezing of the ground.

[0004]

In order to achieve the above object, the present invention forms a pipe by connecting a plurality of pipes for accommodating communication equipment by sockets, and a pipe having a large diameter in the pipe. A small-diameter pipe is housed inside the pipe, a telescopic joint for absorbing the expansion and contraction of the pipe due to a temperature difference, a drainage coupling with a hole on the lower surface are provided, and the pipe is fixed to a support pile. The gist of the invention is a ground laid pipeline device characterized by the above.

[0005]

The most important feature of the present invention is to provide a low-cost, above-ground conduit facility adapted to local characteristics, environment and terrain. The conventional construction method does not require excavation, can be expanded when necessary, does not require an anti-freezing PE pipe, and can improve maintainability, safety, and reduce the installation cost.

[0006]

Next, an embodiment of the present invention will be described. Embodiment 1 FIG. 1 is a schematic view of a first embodiment of the present invention. In the figure, 24 is a gutter, 25 is a sidewalk, 26 is a ground line, 27 is a manhole, and 28 is a fence.

FIG. 2 shows a configuration diagram of the device of the present invention. In the figure, reference numeral 8 denotes a pipe for accommodating communication equipment, 9 denotes a telescopic pipe joint for absorbing expansion and contraction of the pipe due to a seasonal temperature difference, and 10;
Is a coupling for facilitating repair of the pipe, etc., 11 is a drainage coupling for preventing freezing by water in the pipe, 12 is a socket for connecting the pipes, and 13 is a socket for supporting the pipes. The support pile, 14 is a clamp for fixing the pipe and the support pile, 15 is a single pipe cap for corrosion prevention and safety measures, and 16 is a manhole or handhole.

FIGS. 3A and 3B show an expansion joint, and FIG. 3A is a perspective view and FIG. 3B is a sectional view. In this expansion joint, a small-diameter pipe 9b is disposed within a large-diameter pipe 9a, and one end of the large-diameter pipe 9a is fixed to the small-diameter pipe 9b by a weld 9c,
It adjusts the expansion and contraction of the tube due to temperature changes.

FIGS. 4A and 4B show a drain pipe, wherein FIG. 4A is a front view, FIG. 4B is a sectional view in a diameter direction, and FIG. 4C is a sectional view in a length direction. In the figure, 17 is a drain pipe main body, 18
Indicates a drain hole. Both ends of the main body 17 are screwed to the conduit 1 by a fastening ring 19. At this time, a rubber packing 20 is used inside the tightening ring.

FIG. 5 shows the coupling, wherein (a)
Is a front view, (b) is a sectional view in the diameter direction, and (c) is a sectional view in the length direction. In the figure, 21 is a coupling body, 1
Reference numeral 9 denotes a tightening ring, and reference numeral 20 denotes a rubber packing.

FIGS. 6A and 6B show a socket, in which FIG. 6A is a front view, FIG. 6B is a sectional view in a diameter direction, and FIG. 6C is a sectional view in a length direction. In the figure, reference numeral 22 denotes a socket body, which has threads formed at both ends thereof, and is formed so as to be screwed with the threads formed in the pipeline 1.

The above-mentioned expansion joint, coupling, drainage pipe, socket and the like are used for the conduit of the present invention. Next, an example of construction will be described.
A ground pipe of 0 m was laid. The communication equipment housing pipe 1 is made of a galvanized steel pipe that is resistant to corrosion.
Is calculated from the temperature difference of ± 30 ° C., the joints are installed at intervals of 70 m, the couplings 10 are arranged at intervals of 50 m (two at one location), and the drainage coupling 11 is the lowest in the level of the installed pipeline. The installation at the point eliminates the need for an antifreeze PE pipe. Moreover, the support pile 13 is 110 m in length,
The burial depth was set to 80 cm in consideration of the wind pressure load. The installation position of the galvanized steel pipe to accommodate the communication equipment is 20 cm above the ground which can be stepped over by tires in consideration of the dive of vehicles etc.
And The support pile interval is 3 m. From these results, it is recognized that the above-ground pipes are more economical, maintainable, and safe than the conventional technique.

(Embodiment 2) FIG. 7 shows a second embodiment of the present invention, in which a ground line is laid using a fence 28. A barbed wire is stretched over the elongated support pile, and a communication equipment housing pipe is laid 20 cm below the ground to be used as a fence. It is also possible to use guard fences instead of pasture fences.

[0014]

According to the present invention, as described above, a plurality of pipes for accommodating communication equipment are connected by a socket to form a pipe, and the pipe has a large diameter inside a pipe having a large diameter. A telescopic fitting for absorbing the expansion and contraction of the pipe due to the temperature difference, a drainage coupling with a hole provided on the lower surface, and fixing the pipe to the support pile, It has the effect of providing low-cost pipeline equipment that is suitable for the characteristics, environment and terrain.

[Brief description of the drawings]

FIG. 1 is a schematic view of a ground laying pipeline device of the present invention.

FIG. 2 shows the configuration of the device of the present invention.

3A and 3B show an expansion joint, wherein FIG. 3A is a perspective view and FIG. 3B is a cross-sectional view.

FIGS. 4A and 4B show a drain pipe, wherein FIG. 4A is a front view, FIG. 4B is a sectional view in a diameter direction, and FIG. 4C is a sectional view in a length direction.

FIG. 5 shows a coupling, (a) is a front view, (b)
Is a sectional view in the diameter direction, and (c) is a sectional view in the length direction.

6A and 6B show a socket, wherein FIG. 6A is a front view, FIG. 6B is a sectional view in a diametric direction, and FIG. 6C is a sectional view in a length direction.

FIG. 7 shows a second embodiment of the present invention.

8A and 8B show a conventional example, in which FIG. 8A shows a state of a pipeline, and FIG. 8B shows a state of a side groove.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipeline 2 Manhole 3 Cut-out 4 Soil sheet pile 5 Upset 6 Housing pipe 7 Spare pipe 8 Pipe for communication equipment 9 Telescopic joint 9a Pipe 9b Pipe 9c Welded part 10 Coupling 11 Drain coupling 12 Socket 13 Support Pile 14 Clamp 15 Single pipe cap 16 Manhole 17 Drain pipe main body 18 Drain hole 19 Tightening ring 20 Rubber packing 21 Coupling main body 22 Socket main body 23 Pasture fence 24 Side groove 25 Sidewalk 26 Above-ground conduit 27 Manhole 28 Pasture

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Fujimon 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Kou Endo 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Within Nippon Telegraph and Telephone Corporation (72) Kinzo Ishida 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Hideo Takayama 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Japan Within Telegraph and Telephone Corporation (72) Inventor Akira Fukuda 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A-5-130727 (JP, A) 7679 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) H02G 9/00-9/12

Claims (2)

(57) [Scope of request for utility model registration] A pipe is formed by connecting a plurality of pipes for accommodating communication equipment by a socket, and a pipe having a small diameter is accommodated inside a pipe having a large diameter in the pipe, and a temperature difference is provided. An above-ground laying pipeline apparatus, comprising: a telescopic pipe joint for absorbing expansion and contraction of a pipe; a drainage coupling having a hole formed on a lower surface thereof; and the pipeline fixed to a support pile. 2. The above-ground laying pipeline device according to claim 1, wherein the supporting pile for fixing the pipeline is shared with a pasture fence or a guard fence.