JP2002335613A - Drain device of box for wiring cable or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the situation of water accumulating in a box, by making water tending to accumulate automatically drainable by eliminating use of particular power and eliminating need for special drain works. SOLUTION: There are provided a capillary tube material 20 making one end 20a appear in a lower side inside a unit 10 of a box M, having a bottom wall 11 and a sidewall 13 for inserting cables to be formed in box shape to be buried in the ground to make the other end 20b appear in the upper side outside the unit 10 and sucking up water W accumulated in the lower side of the unit 10 from the one end 20a to the other end 20b by a capillary tube principle to be diffused from the other end 20b, a protecting pipe 21 covering the capillary tube material 20 with its one end and the other end exposed to be arranged along outside the unit 10, and an osmosis layer part 30 buried in an upper side outside the unit 10 to be linked to the other end 20b of the capillary tube material 20 to infiltrate water W diffused from the other end 20b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage device for a cable wiring box provided at a relay point of cables buried underground such as electric wires and optical fibers.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 2, cables such as communication wires and optical fibers are buried in the ground. A cable M such as a handhole is provided. Conventionally, a cable-type wiring box M is formed into a box shape with a bottom wall 1 and a cylindrical side wall 2 by, for example, molding of concrete, and cables and cables buried in the ground in the front and rear direction side walls 2. Is a so-called sheath tube etc. 3
Body 5 having insertion hole 4 inserted through
And a lid 7 for closing an opening 6 provided in an upper part of the main body 5.

[0003]

By the way, in such a cable wiring box M, a gap is sealed with a sealing material or the like so as to prevent water from entering the inside as much as possible, so as to be waterproof. Inevitably, the opening 6 of the lid 7 and the pipe 3
Water penetrates from a slight gap such as the insertion hole 4 of
In fact, it is unavoidable that water penetrates through the inside of the tubular body 3 and water W accumulates to some extent. In particular, as shown in FIG. 2, the buried depth is not always constant between the buried pits, and there is a difference in elevation. Therefore, water flows through the pipe 3 from the higher pit to the lower pit. This is easy, so that water W remarkably accumulates especially in a low-level pit. In this cable wiring box M, since there are a lot of electric wirings, since water is disliked as much as possible, it is necessary to prevent water from accumulating as much as possible. We used water to drain the water and re-seal the seal.
Therefore, there is a problem that maintenance becomes complicated. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made to be able to automatically drain water to be collected without using special power and without special draining work. It is an object of the present invention to provide a drainage device for a cabling for a cable or the like, which can prevent a situation in which water accumulates inside.

[0004]

The technical means of the present invention for solving such a problem is to form a box having a bottom wall and a side wall through which cables are inserted and to be buried in the ground. In a drainage device for a cable wiring basin for draining a cable wiring basin having a main body, one end faces the lower side of the inside of the main body, and the other end faces the upper side of the outside of the main body, and the lower end of the main body. The apparatus is provided with a capillary member that sucks water accumulated on the side from one end to the other end by the capillary principle and dissipates the water from the other end. As a result, even if water penetrates through a small gap in the basin, or if water penetrates through the inside of the pipe body and water accumulates on the lower side of the main body, the water accumulated on the lower side does not When it comes into contact with one end of the capillary material, it is sucked up from one end to the other end by the capillary principle and is radiated from the other end. Therefore, the water to be collected can be automatically drained without using any special power, and can be automatically drained without special draining work, thereby preventing the water from being accumulated in the basin.

[0005] If necessary, a protective pipe is provided to cover the capillary tube with one end and the other end exposed. Since the capillary material can be protected, the capillary material can be easily arranged underground or the like, and the degree of freedom of the arrangement can be increased. Further, the protection pipe is arranged along the outside of the main body as required. Compared to the case where the device is provided through the inside of the main body, the inside of the main body can be widely secured, and it is possible to prevent troubles in connection of cables and the like. Further, if necessary, a permeation layer is provided which is buried on the upper side of the outside of the main body and is linked to the other end of the capillary material and through which water radiated from the other end permeates. The water sucked up from one end to the other end of the capillary material by the capillary principle is diffused from the other end to the osmotic layer, penetrates the osmotic layer, and is discharged over time to the soil. for that reason,
Dispersion of water can be performed underground, and discharge can be easily performed. Further, since there is no portion protruding above the ground, the appearance quality of the device is improved. Furthermore, if necessary, the capillary material is formed by bundling and gathering fiber materials, and the fiber material at the other end of the capillary material is diffused into the permeation layer. The contact area between the capillary material and the permeation layer is increased, so that the water is reliably diffused and permeated.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a drainage device for a cable wiring box according to an embodiment of the present invention. As shown in FIG. 1, a cable wiring box M in which a drainage device S according to an embodiment of the present invention is provided has a soil G
Is buried in a place where a roadbed Ga is laid and a pavement Gb is provided thereon, and is formed in a box shape with a cylindrical side wall 13 between a rectangular bottom wall 11 and a top wall 12. A main body 10 is provided. The body 10 is divided into upper and lower parts, and is joined to each other. A plurality of insertion holes through which a cable buried in the ground is inserted into a side wall 13 through a tube K called a so-called sheath tube or the like. 14 are formed. The insertion hole 14 and the tube K are sealed with a sealant. An opening 15 is formed in the upper wall 12 of the main body 10. 16 is the opening 1
5 is a lid for closing.

[0007] In the drainage device S for a cable wiring box according to the embodiment of the present invention, reference numeral 20 denotes a capillary material;
One end 20a faces the lower side of the inside of the main body 10 of the basin M, and the other end 20b faces the upper side outside the main body 10. The water W is sucked up from the one end 20a to the other end 20b by the capillary principle and diffused from the other end 20b. The capillary material 20 is formed by, for example, bundling and gathering fiber materials made of polyethylene, polypropylene, or other synthetic resin material. Reference numeral 21 denotes a resin protection pipe which covers the capillary 20 by exposing its one end 20a and the other end 20b, and is provided along the outside of the main body 10. The lower end of the protection pipe 21 is fitted and fixed in a mounting hole 22 formed in the lower part of the main body 10, and the upper side of the protection pipe 21 is bent in a U-shape and the opening 23 is formed downward. The upper end 21a of the protection pipe 21 is lower than the upper end of the main body 10 and is buried underground. Since the capillary member 20 is protected by the protection pipe 21, the capillary member 20 can be easily disposed. In addition, the protection pipe 21
Are arranged along the outside of the main body 10, so that the main body 1
0 is widely secured, and there is no problem in connection of cables and the like.

Reference numeral 30 denotes a permeation layer portion which is buried on the upper side of the outside of the main body 10 and is linked to the other end 20b of the capillary member 20 and through which water W diffused from the other end 20b penetrates. As shown in FIG. 1, in the case of a square M buried in a place where the pavement Gb is formed, the permeation layer portion 30 is provided below the roadbed Ga. The material and size of the permeation layer portion 30 are appropriately determined in consideration of the properties of the surrounding soil so that the permeation and discharge of the water W can be smoothly performed. In the embodiment, it is made of sand. Although the soil G is formed around the permeation layer portion 30, it is desirable that the soil be as drainable as possible. The fiber material at the other end 20b of the capillary material 20 formed by bundling and assembling the fiber materials is diffused and linked to the permeable layer portion 30.

Therefore, according to the drainage device S for a tub for cables and wiring according to this embodiment, the
Water W intrudes from a small gap such as the opening 15 of the tube K or the insertion hole 14 of the tube K, or the water W penetrates through the inside of the tube K, and the water W Even if it accumulates, when the water W collected on the lower side contacts one end 20a of the capillary material 20, it is sucked up from the one end 20a to the other end 20b by the capillary principle. Since the other end 20b has the permeation layer 30, the other end 20b diffuses the water into the permeation layer 30, permeates the permeation layer 30, and is discharged into the soil G with time. Therefore, the water W to be collected can be automatically drained without using any special power, and can be automatically drained without special draining work, thereby preventing the water W from being accumulated in the basin M. You. In this case, the water W can be diffused into the ground, and the water W can be easily discharged. Further, since there is no portion protruding above the ground, the appearance quality can be improved. Further, since the fiber material at the other end 20b of the capillary material 20 is diffused into the permeation layer 30, the contact area with the permeation layer 30 is increased, so that the fiber is reliably diffused and permeated.

In the above embodiment, the capillary 2
Although 0 is made of a fiber material, it is not necessarily limited to this. For example, any material such as sponge, cloth, paper, and porous material may be used. Any material that can be used may be used. Further, in the above-described embodiment, the other end 20b of the capillary material 20 is linked to the permeation layer 30. However, the present invention is not limited to this, and the other end 20b is projected to the ground and diffused into the air. You may make it change and may change suitably.

[0011]

As described above, according to the drainage device for a cascade for cables and the like of the present invention, even if water accumulates on the lower side of the main body of the basin, the water collected on the lower side can be removed. Capable of sucking up and dissipating water by the capillary principle using the capillary material, the water to be collected can be automatically drained without using special power, and it can be automatically drained without special draining work. Water can be prevented from accumulating, and an extremely favorable environment can be provided for electric cables and the like that dislike water. Further, in the case where a protective pipe is provided to cover the capillary material by exposing one end and the other end thereof, the capillary material can be protected, so that the capillary material can be easily arranged underground or the like, and the degree of freedom of arrangement can be increased. Can increase. Furthermore, when the protection pipe is arranged along the outside of the main body, a wider inside of the main body can be secured compared with the case where the protection pipe is arranged through the inside of the main body. Disturbance can be prevented.

In the case where there is provided a permeation layer portion which is buried on the upper side of the outside of the main body and is linked to the other end of the capillary material and through which the water radiated from the other end penetrates, the water is diffused into the ground. And discharge can be easily performed.
Further, since there is no portion protruding above the ground, the appearance quality can be improved. Further, when the capillary material is formed by bundling and gathering the fiber materials, and the fiber material at the other end of the capillary material is diffused into the permeation layer portion, the contact area of the capillary material with the permeation layer portion increases, It can be surely diffused and penetrated.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a drainage device for a cable wiring box according to an embodiment of the present invention in an embedded state.

FIG. 2 is a cross-sectional view showing a conventional cable wiring box in a buried state.

[Explanation of symbols]

 S Drainage device for cable wiring box M Cable wiring box W Water G Soil Ga Subgrade Gb Pavement 10 Main body 11 Bottom wall 12 Top wall 13 Side wall K Tube 14 Insertion hole 15 Opening 16 Lid 20 Capillary material 20a One end 20b Other end 21 Protection pipe 22 Mounting hole 23 Opening 30 Permeation layer

Claims (5)

[Claims] 1. A drainage device for a cable tub for draining a cable tub having a bottom wall and a side wall through which cables are inserted and having a main body buried in the ground and having a box shape. In the above, one end faces the lower side of the inside of the main body, and the other end faces the upper side of the outside of the main body, and water collected at the lower side of the main body is sucked up from the one end to the other end by the capillary principle and dissipated from the other end. A drainage device for a basin for cables and wirings, comprising a capillary material for causing a cable to flow. 2. The drainage device according to claim 1, further comprising a protective pipe for covering the capillary member by exposing one end and the other end thereof. 3. The drainage device according to claim 2, wherein the protection pipe is disposed along the outside of the main body. 4. A permeation layer portion buried on the upper side of the outside of the main body and connected to the other end of the capillary material and through which water discharged from the other end permeates. 2
Or the drainage device of the basin for wiring of cables described in 3. 5. The cables according to claim 4, wherein the capillary material is formed by bundling and gathering fiber materials, and the fiber material at the other end of the capillary material is diffused into the permeation layer. Drainage device for wiring basin.