KR100951457B1 - Drainage apparatus of underground low-voltage pull box - Google Patents

Abstract

The present invention relates to a drainage device of an underground low pressure junction box, and more particularly, to induce a natural drainage when an external water inflow of an underground low pressure junction box is introduced, and to automatically prevent an underground groundwater from flowing back into an underground distribution box through a drain hole. It relates to a drainage device.

To this end, the present invention is a drainage device of the underground low pressure junction box in which various connection materials and cables are installed, the outlet 1b of the drain port 1 is connected to the drain hole 101 formed in the bottom of the low pressure junction box 100. The drain port 1 has a first bent part 2 extending upward, a second bent part 3 extending horizontally to the first bent part 2, and a downward direction to the second bent part 3. It is composed of a plurality of bent pipes consisting of a third bent portion 4 is connected to the inlet (1a) arranged horizontally, the diameter of the second bent portion 3 is the diameter of the first, third bent portion (2, 4) It is formed larger and has a structure in which the concrete valve 5 which opens and closes the connection of the 1st, 3nd bends 2 and 4 is built in the inside of this 2nd bend 3.

Description

Drainage apparatus of underground low-voltage pull box

The present invention relates to a drainage device of an underground low pressure junction box, and more particularly, to induce a natural drainage when an external water inflow of an underground low pressure junction box is introduced, and to automatically prevent an underground groundwater from flowing back into an underground distribution box through a drain hole. It relates to a drainage device.

As is well known, the low-voltage junction box installed in the ground of the electric power facility has a brick and cement structure around and the bottom, and an iron lid is installed for the worker's access.

On the other hand, in recent years, the construction of the underground low pressure junction box is under construction as a FRP (Fiber Reinforced Plastic) low pressure junction to prevent the risk of leakage. Underground water flowed back, or rainwater and sewage inflow into the enclosure may affect the insulation of the connection material and the cable, leakage of water could provide a critical risk to the safety of pedestrians.

In addition, the conventional low-pressure junction box, in addition to the regular inspection and cleaning, as the continuous maintenance and management of additional inspection and drainage and cleaning from time to time for the drainage of the submerged junction box, there were a lot of natural points in terms of human resources and administrative funds.

Accordingly, the present invention has been invented to solve the conventional problems as described above, the water introduced into the enclosure while the reverse flow of the external water in the ground into the low-pressure junction box is installed with various cables and connecting materials fall out to the outside by natural drainage The purpose of the present invention is to provide an automatic drainage device for underground low-voltage junction boxes that is safer and easier to manage while preventing leakage of water.

In order to achieve the above object, the present invention is a drain hole is connected to the drain hole formed in the bottom of the junction box, the drain hole is the first bent portion extending upward and the second bent portion and the second bent connected horizontally to the first bent portion It consists of a drain pipe having a third bent portion connected to the bend downwardly arranged horizontally, wherein the second bent portion has a concrete valve larger than the diameter of the drain pipe, the diameter of the second bent portion is the first, second bends It is formed larger than the diameter of.

As described above, the automatic drainage device of the underground low pressure junction box according to the present invention prevents water from flowing back into the low pressure junction box while automatically draining the water into the ground when the inside of the low pressure junction box is flooded. This prevents safety accidents in advance and makes management checks more efficient.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of the automatic drainage device according to the present invention, Figures 2 and 4 are views showing a state in which the automatic drainage device according to the present invention is installed inside the FRP low pressure junction box (100).

The present invention is installed in the underground low-voltage junction box 100 is installed various connection materials and cables to prevent the rain rain or water flowing from the ground or discharged to the outside of the underground power parts installed in the underground low-voltage junction box 100 In order to prevent the leakage and failure of these, as shown in the drawing, the outlet 1b of the drain port 1 is connected to the drain hole 101 formed in the bottom of the low-pressure junction box 100, and the drain port 1 Is connected to the inlet 1a downwardly connected to the first bent part 2 extending upward, the second bent part 3 extending horizontally to the first bent part 2, and the second bent part 3; It consists of a multi-bent pipe consisting of a third bent portion (4) arranged horizontally, the diameter of the second bent portion 3 is formed larger than the diameter of the first, third bent portion (2, 4), 2 inside the bent part 3 to open and close the connection of the first and third bent parts 2 and 4. Specific incorporates a valve (5).

Here, the concrete valve 5 embedded in the second bent part 3 can be moved by the pressure of the incoming water while the diameter of the concrete valve 5 is formed to be larger than the diameter of the first and third bent parts 2 and 4. In addition, it is formed smaller than the diameter of the 2nd bending part 3.

And the built-in case 6 in which the drain port 1 is installed is equipped with a bottom seating bottom portion 7 so as to be fixed to the installation groove 102 formed on the bottom of the low-pressure junction box 100 to be removable structure have.

Next, the operation of the present invention will be described.

First, as shown in FIGS. 2 and 3, when rainwater or sewage flowed into the low-pressure junction box 100 through the lid 103 is introduced, the water introduced by the water pressure as shown by arrow (a) is indicated by the arrow ( B) flows in this direction, in which the concrete valve 5 rises from the inside of the second bent part 3 by the water pressure introduced into the inlet 1a of the drain port 1, and the drain port 1 is opened to the low pressure. Water inside the junction box 100 is discharged to the outside of the ground through the outlet (1b) of the drain (1).

On the other hand, when the groundwater and sewage flows out of the ground of the low-pressure junction box 100 as shown in Figures 4 and 5 when the water flows back through the drain hole 101 in the direction of the arrow (c) is flowed back Water pushes the spherical valve 5 of the second bent part 3 downward to close the drain port of the second bent part 3, thereby automatically blocking the inflow of water back into the low pressure junction box 100 in the ground. It is supposed to be.

1 is a front view of an automatic drainage device installed in the underground low pressure junction box according to the present invention,

2 is a view showing that the present invention is discharged to the outside of the deceased in the state installed in the underground low pressure junction box,

3 is an enlarged explanatory view of the installed invention of FIG. 2;

4 is a view showing that the present invention prevents water from entering the underground low pressure junction box outside the ground in the state installed in the underground low pressure junction box,

5 is an enlarged explanatory view of the installed present invention of FIG. 4.

Explanation of symbols on the main parts of the drawing

1: outlet, 1a: inlet,

1b: outlet, 2: first bend,

3: second bend, 4: third bend,

5: concrete valve, 6: internal case,

7: seating bottom part, 100: low pressure junction box,

101: drain hole, 102: mounting groove,

103: lid.

Claims (3)

In the drainage of the underground low-voltage junction box where various connecting materials and cables, etc. are installed, The outlet 1b of the drain port 1 is connected to the drain hole 101 formed in the inner bottom of the low pressure junction box 100, and the drain port 1 has a first bent part 2 extending upwardly, and A multiple bend consisting of a second bent portion 3 extending horizontally to the first bent portion 2 and a third bent portion 4 connected downwardly to the second bent portion 3 and disposed horizontally at the inlet 1a. Consisting of pipes The diameter of the second bent portion (3) is formed larger than the diameter of the first, third bends (2, 4), the connection of the first, third bends (2, 4) inside the second bent portion (3) The automatic drainage device for underground low pressure junction box, characterized in that the built-in concrete valve (5) is opened and closed to automatically block the inflow of water flowing back into the low pressure junction box 100 in the ground. The method of claim 1, The concrete valve 5 embedded in the second bent part 3 can be moved by the pressure of the incoming water while the diameter of the concrete valve 5 is formed to be larger than the diameter of the first and third bent parts 2 and 4. Automatic drainage device for underground low pressure junction box, characterized in that formed smaller than the diameter of the second bent portion (3). The method of claim 1, The built-in case 6 in which the drain port 1 is installed is equipped with a bottom seating bottom 7 so as to be fixed to an installation groove 102 formed at the bottom of the low pressure junction box 100. Automatic drainage system for underground low pressure junction box.

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