WO2010021480A2

WO2010021480A2 - Underground container system for electric utility

Info

Publication number: WO2010021480A2
Application number: PCT/KR2009/004597
Authority: WO
Inventors: 강은진
Original assignee: Kang Eun Jin
Priority date: 2008-08-18
Filing date: 2009-08-18
Publication date: 2010-02-25
Also published as: WO2010021480A3

Abstract

A facility for an electric utility such as an electric pole mars the appearance of a city, prevents the efficient use of spaces in a city, and is a main factor that threatens the safety of citizens. Provided is an underground container system for an electric utility. The container system comprises: an underground box that is buried under the ground and has closed lateral and bottom sides and an upper side at which a portion can be opened like a manhole, a movable unit that moves an electric utility box from inside the underground box to the outside through the open portion at the upper side of the underground box, and a cover that seals up the open portion in a state that the electric utility box is placed inside the underground box. Therefore, the facility for an electric utility such as an electric pole may disappear into the ground.

Description

Underground Electric Installation Container System

At least one embodiment of the invention relates to a container system in which at least one electrical installation can be embedded, and more particularly to an electrical installation container system of the type that can be embedded underground.

In the past, electrical equipment such as outdoor transformers, outdoor communication equipment, and street light distribution boards were installed on top of large ground facilities such as power poles. Therefore, electrical equipment managers have to climb onto power poles to perform maintenance of electrical equipment. Was difficult and dangerous. In addition, with the rapid industrialization of the modern society, as the demand for electric facilities has exploded, electric facilities related to electric facilities such as power poles have appeared all over the city. As a result, electrical facilities related to electric poles, such as electric poles, have been a factor that undermines the aesthetics of urban centers, impedes the efficient use of urban spaces, and threatens the safety of urban citizens.

Brief description of the drawings

1 is a cross-sectional view of an underground buried electrical installation container system according to an embodiment of the present invention.

2 is a longitudinal sectional view of the underground buried electrical installation container system according to an embodiment of the present invention.

FIG. 3 is a view showing an example of a mechanism for sealing an open portion of the upper surface of the buried box 1 shown in FIG. 1.

FIG. 4 is a view showing an upper surface of the buried box 1 shown in FIG. 1.

FIG. 5 is a view illustrating a top surface of the underground buried electrical installation container system shown in FIGS. 1-2.

FIG. 6 is a view showing the electrical equipment box 2 shown in FIGS. 1-2 exposed on the ground.

FIG. 7 shows an example of a pressure reducing device for reducing the internal pressure of the buried box 1 shown in FIG. 1.

FIG. 8 is a view showing an example of an apparatus for preventing the vertical explosion inside the buried box 1 shown in FIG. 1.

Technical challenges

Technical problem to be achieved by at least one embodiment of the present invention is that the electrical facilities related facilities such as power poles disappear from the ground, the beauty of the city is beautiful, can use the urban space more efficiently, there is no danger of falling of facilities, such as citizens To provide a buried underground electrical installation container system that can be secured. The technical problem to be achieved by the present embodiment is not limited to the technical problems as described above, and other technical problems may exist.

Technical solution

Underground buried electrical installation container system according to the present embodiment for solving the technical problem is a buried box buried underground in the form of an open manhole, the side and the bottom of the front direction is sealed; A moving unit for moving the electrical equipment box located inside the buried box to the outside of the buried box through an open portion of an upper surface of the buried box; A control box having a user interface for controlling movement of the electrical installation box by the moving unit; And a lid for sealing an open portion of an upper surface of the buried box in a state where the electrical equipment box is located inside the buried box.

Favorable effect

According to the underground buried electric equipment container system described above, since electrical equipment boxes are installed inside the buried boxes buried underground, electrical equipment-related facilities such as power poles disappear from the ground, and the aesthetics of the city are beautiful, It can be used more efficiently and is safe because there is no danger of falling of facilities. By manipulating only the user interface provided in the underground buried electrical container system, the user can automatically move the electrical equipment box located inside the sealed box which is watertightly sealed and moved out of the buried box at the same time. In addition, the electrical equipment box exposed to the outside can be easily accessed and repaired. When the repair of the electrical equipment box is completed, the user can operate only the user interface of the control box so that the electrical equipment box located outside the buried box can be moved to the inside of the buried box, and upon completion of the movement, it is automatically buried. The box can be sealed.

Best Mode for Carrying Out the Invention

Hereinafter, with reference to the drawings will be described embodiments of the present invention;

1 is a cross-sectional view of an underground buried electrical installation container system according to an embodiment of the present invention. 2 is a longitudinal sectional view of the underground buried electrical installation container system according to an embodiment of the present invention. 1-2, the underground buried electrical equipment container system according to this embodiment is a buried box (1), electrical equipment box (2), the inner bottom plate (3), sliding guard (4), It consists of an inner top plate 5, a moving part 6, a control box 7, a lower cover 8, an upper cover 9, and a plurality of supports 10.

The buried box 1 is the outermost part in the lateral direction and the downward direction of the underground buried electric installation container system according to the present embodiment. It is buried underground. As shown in Fig. 1-2, the buried box 1 is installed so that most of the side and the lower surface is buried underground, the upper surface is installed so as to rise a predetermined height (about 5 to 10 centimeters) above the ground surface. However, depending on the installation environment of the embedding box 1 or the intention of the installer, the upper surface of the embedding box 1 may be installed lower than or parallel to the ground surface. In particular, the buried box 1 is preferably made of a waterproof and durable material, such as concrete (concrete), to prevent the electrical equipment therein from being eroded by moisture, water, microorganisms and the like underground. However, it will be understood by those skilled in the art that the present embodiment may be made of other materials than those described above. In addition, when the buried box 1 is buried underground, it is preferable to carry out the rubble compaction treatment of the ground surface where the buried box 1 is installed so that the buried box 1 is not recessed.

The electrical equipment box 2 is a box containing electrical equipment and is installed inside the buried box 1 embedded underground. Here, examples of the electrical installations include outdoor transformers, outdoor communication devices, street light distribution boards, and the like. In general, such an electrical installation box 2 is called a distribution box, a terminal box, or the like. In this way, since the electrical equipment box 2 is installed inside the buried box 1 buried underground, electrical equipment-related facilities such as power poles disappear from the ground, so that the beauty of the city center becomes beautiful and the urban space more efficiently. It can be used and it is safe because there is no danger of falling of facilities.

In order for the electrical equipment in the electrical equipment box 2 and the electrical equipment outside the buried box 1 to be in electrical communication with each other, the buried box 1 is equipped with the electrical equipment and electrical buried box 1 in the electrical equipment box 2. Cables for connecting external electrical equipment are buried. In particular, such a buried cable has a length such that it does not interfere with the vertical movement of the electrical installation box 2 inside the buried box 1. However, when electrical communication between the electrical equipment in the electrical equipment box 2 and the electrical equipment outside the buried box 1 is wirelessly possible, such a wired cable does not necessarily need to be buried in the buried box 1. Examples of the electric equipment outside the buried box 1 include electric equipment of a power plant, electric equipment installed inside another buried box other than the buried box 1, and the like. Furthermore, the buried box 1 may be buried with a cable for protecting other electrical equipment such as a grounding cable.

The inner lower plate 3 is attached to the inner lower surface of the embedding box 1 and is a flat plate having a shape that can be embedded in the embedding box 1. As shown in FIGS. 1-2, the inner lower plate 3 will be made of a metal plate having the shape of the inner bottom surface of the buried box 1. The inner lower plate 3 is equipped with a moving part 6 for moving up and down the electrical equipment box embedded in the embedding box 1. In particular, the inner lower plate 3 is preferably made of stainless steel, aluminum, etc., which is resistant to corrosion and has excellent durability. However, it will be understood by those skilled in the art that the present embodiment may be made of other materials than those described above.

The sliding guard 4 is attached to the inner side of the buried box 1 is installed, and has a shape that can be embedded in parallel on the side of the buried box (1). As shown in FIGS. 1-2, the sliding guard 4 is a plurality of metal bars attached in parallel on the side of the buried box 1 or a metal plate attached in parallel on the entire side of the buried box 1. Is produced by. In general, since the buried box 1 is manufactured in the form of a cuboid, when the sliding guard 4 has the form of metal bars, a cylindrical 4 installed at each of the four corners of the inner rectangular space of the buried box 1 is provided. Two metal rods. In particular, the sliding guard 4 is preferably made of stainless steel, aluminum, etc., having a low coefficient of friction while being resistant to corrosion and excellent in durability. However, it will be understood by those skilled in the art that the present embodiment may be made of other materials than those described above.

The inner top plate 5 is spaced apart from the inside of the buried box 1, in particular the upper surface of the inner bottom plate 3, and is a flat plate having a shape that can be embedded in the buried box 1. As shown in FIGS. 1-2, the inner top plate 5 is made of a metal plate having the same shape as the inner top plate 5. The electrical equipment box 2 is mounted on the inner top plate 5. In particular, the inner upper plate 5 is preferably made of stainless steel, aluminum, etc., having a low coefficient of friction while being resistant to corrosion and excellent in durability like the inner lower plate 3. The inner lower plate 3 has a fixed position because it is attached to the inner lower surface of the embedding box 1 of the buried box 1, but the inner upper plate 5 is spaced apart from the upper surface of the inner lower plate 3. To move up and down inside the buried box 1.

The inner top plate 5 smoothly moves up and down the inside of the buried box 1 using the sliding guard 4 as follows. The inner upper plate 5 is supported by a drive mechanism 61 installed on the inner lower plate 3, and is installed so that all or part of its side is in contact with the sliding guard 4 attached to the side of the buried box 1. . Accordingly, the inner top plate 5 slides along the sliding guard 4 in accordance with the extension and contraction motion of the drive mechanism 61. By the movement of the inner top plate 5, the electrical equipment box 2 mounted on the inner top plate 5 slides in a state exposed from the embedded box 1 to the outside of the embedding box 1. It can be moved and, on the contrary, can be slidably moved from being exposed to the outside of the embedding box 1 to be embedded in the embedding box 1.

The moving unit 6 embeds the electrical equipment box 2 located inside the embedding box 1 through the opening of the upper surface of the embedding box 1 under the control of the user through the control box 7. ), Or the electrical equipment box 2 located outside the buried box 1 is moved into the buried box 1 through an open portion of the upper surface of the buried box 1. In more detail, the moving part 6 is mounted in the inner lower board 3, and moves the electrical installation box 2 by raising or lowering the inner upper board 5 using this inner lower board 3 as a base. Let's go.

1-2 shows an example of the moving part 6 according to an embodiment of the present invention. 1-2, the moving part 6 is comprised by the drive mechanism 61 and the motor 62. As shown in FIG. At least one pair of drive mechanisms 61 intersecting and supporting the upper surface of the inner lower plate 3 and the lower surface of the inner upper plate 5 in an X-shape while the intersection points thereof are fastened to each other and move about this intersection point. The above-described cross supports and cylindrical gears for horizontally moving each of the lower ends of the cross supports are implemented. The lower ends of these cross supports have the form of gears that are bitten by cylindrical gears. When the cylindrical gear rotates in a certain direction, the lower ends of the cross supports are gathered along the cylindrical gear, and when the cylindrical gear rotates in the opposite direction, the lower ends of the cross supports are spread along the cylindrical gear. That is, when the cylindrical gear rotates in a certain direction, the cross-shaped supports of the X-shape become narrower in width and increase in height. When the cylindrical gear rotates in the opposite direction, the width increases in width and decreases in height. Accordingly, the inner top plate 5 supported by the cross supports is raised or lowered. The shape of the drive mechanism 61 shown in FIGS. 1-2 is only an example for raising or lowering the inner upper plate 5 with the inner lower plate 3 as a pedestal, and in addition to the form shown in FIGS. 1-2. It can be understood by those skilled in the art that the present embodiment can be implemented in various forms.

The motor 62 drives the drive mechanism 61 according to the control of the user through the control box 7. In particular, in this embodiment, a hydraulic motor is used to prepare for the failure of the motor 62. The hydraulic motor refers to a device that converts rotational energy generated by an electric motor or an engine into pressure energy and converts the pressure energy into rotational energy again. When the electric motor or the engine corresponding to the power source of the hydraulic motor fails, rotational energy is input by using the oil pressure input from the outside through the tube 63 connected to the motor 62 instead of the oil pressure generated by the electric motor or the engine. Can be generated. The outer inlet of the tube 63 connected to the motor 62 is installed in the control box 7. Accordingly, the user can cause the motor 62 to be driven by injecting a fluid such as air, water, or oil into the inlet provided in the control box 7. In particular, the tube 63 is made of a soft material so as not to interfere with the movement of the electrical installation box 2. In addition, when the power source of the motor 62 is an electric motor, the electric power required for driving this electric motor can be obtained by extracting a part of electric power which enters and exits the electrical installation box 2. In addition, the moving part 6 may be designed so that the motor 62 may be located outside the buried box 1 to facilitate troubleshooting, such as an electric motor or an engine.

However, when the weight of the electrical equipment box 2 is movable enough by the attraction force, the moving part 6 does not use the electrical energy or chemical energy required by an electric motor or an engine, and does not use mechanical mechanisms, such as a lever and a pulley. By using the manpower to move the electrical equipment box (2) embedded in the buried box (1) to the outside of the buried box (1) through the open portion of the upper surface of the buried box (1), or The electrical equipment box 2 located outside can be designed to be moved to the inside of the buried box 1 through an open portion of the upper surface of the buried box 1. In this case, the control box 7 corresponds to the portion where the attraction force is input. Those skilled in the art to which the present embodiment pertains can understand that the moving part 6 may be designed in various forms in addition to the forms described above.

The control box 7 is provided so that only a user interface for controlling the movement of the electrical installation box 7 by the moving unit 6 and only a user who has the right to use the electrical installation box 7 can access the user interface. It consists of a security device. The user interface of the control box 7 may be an electrical interface or a mechanical interface. Examples of the former include a switch for starting or stopping driving of the motor 62, which is connected to the motor 62 via a wire 64. An example of the latter is a gear device for driving the motor 62 or the drive mechanism 61 using the user's attraction. In particular, when the electrical equipment box 7 is a high-voltage electrical equipment or an expensive electrical equipment, a person other than the user who has the right to use the electrical equipment box 7 controls the movement of the electrical equipment box 7. The security device of the control box 7 is very important because it must be prevented. Such a security device may be implemented with a lock that locks the door of the control box 7 and a key that opens it. The key in this embodiment may be a conventional mechanical key or an electronic key such as a password.

The lower cover 8 and the upper cover 9 are located on the ground as the outermost part of the upper direction of the underground buried electrical equipment container system according to the present embodiment, and the upper surface of the buried box 1 buried underground. Cover. The lower cover 8 seals the open portion of the upper surface of the embedding box 1 with the electrical installation box 2 located inside the embedding box 1. In more detail, the lower cover 8 is a flat plate having an area larger than the area of the open portion of the upper surface of the buried box 1, and the electric equipment box 2 is buried in the state of the buried box 1. Cover the top surface of the box (1). In particular, the mechanism for sealing the opening part of the upper surface of the embedding box 1 is provided in the part or whole of the part which the lower cover 8 and the embedding box 1 contact.

FIG. 3 is a view showing an example of a mechanism for sealing an open portion of the upper surface of the buried box 1 shown in FIG. 1. Referring to FIG. 3, the mechanism for sealing the open portion of the upper surface of the buried box 1 includes a rubber packing on the gap 11 on the upper surface of the buried box 1 and the lower surface of the lower cover 8 ( 81). In particular, the rubber packing 81 on the lower surface of the lower cover 8 is embedded as shown in FIG. 2 so that the lower cover 8 can completely seal the opening of the upper surface of the buried box 1. It has a slightly larger area than the width of the gap 11 on the top surface of the box 1.

FIG. 4 is a view showing an upper surface of the buried box 1 shown in FIG. 1. Referring to FIG. 3, a gap 11 is formed on the upper surface of the buried box 1 to round the circumference of the upper surface. The lower surface of the lower cover 8 is provided with a rubber packing 81 press-fitted into the gap 11 of the upper surface of the embedding box 1 in a state where the electrical installation box 2 is located inside the embedding box 1. In this way, the shape of the gap 11 and the rubber packing 81 is produced in a male-female relationship. When the rubber packing 81 on the lower surface of the lower cover 8 is press-fitted into the gap 11 on the upper surface of the embedding box 1, the upper surface of the embedding box 1 is rounded due to the elasticity of the rubber packing 81. The rubber packing 81 is pressed in the gap, and as a result, the open portion of the upper surface of the buried box 1 is sealed.

In addition, the lower cover 8 is provided with a heat dissipation plate 82 for dissipating heat generated in the electrical installation box 2 to the outside of the embedding box 1. In more detail, the heat sink 82 as described above is provided on the upper surface of the lower cover 8 exposed to the ground, and the electrical equipment is provided on the lower surface of the lower cover 8 in contact with the inside of the buried box 1. A heat collecting plate 83 for collecting heat generated in the box 2 is provided. Accordingly, the heat collecting plate 83 provided on the lower surface of the lower cover 8 collects heat generated in the electrical equipment box 2 in the buried box 1, and the heat sink 82 provided on the upper surface of the lower cover 8. The heat thus collected is released to the outside. As illustrated in FIGS. 1-2, the heat sink 82 and the heat collecting plate 83 may be manufactured in an uneven form to maximize an area for heat dissipation and heat collection. In addition, the lower cover 8, the heat sink 82, and the heat collecting plate 83 may be manufactured in the form of an integrated structure, and is preferably made of aluminum, which is resistant to corrosion and has excellent durability and excellent thermal conductivity. However, one of ordinary skill in the art to which this embodiment belongs may be made of a material other than the above-described material, it can be understood that other heat dissipation methods such as a water cooling method may be applied. The upper surface of the lower cover 8 is provided with a space for installing the control box 7 for controlling the movement of the electrical equipment box (2).

The upper cover 9 covers the control box 7 and the heat sink 82 provided on the upper surface of the lower cover 8. In more detail, the upper cover 9 is a flat plate having a shape that can cover the control box 7 and the heat sink 82 provided on the upper surface of the lower cover 8 and the control box on the upper surface of the upper cover 9. A door for accessing the user interface of (7), a wood panel for blocking heat of the heat sink 82, and the like are provided. As shown in FIGS. 1-2, the edge of either the lower lid 8 or the upper lid 9 may be shaped to be inclined such that the buried box 1 is not exposed to the ground. FIG. 5 is a view illustrating a top surface of the underground buried electrical installation container system shown in FIGS. 1-2. Referring to FIG. 5, a vent hole for facilitating heat dissipation of the heat dissipation plate 82 provided on the upper surface of the lower cover 8 is provided at the edge of the lower cover 8. In addition, the top cover 9 is provided with a wood panel that blocks the heat of the heat sink 82. As a result, it is possible to protect the pedestrians passing through the underground buried electrical installation container system according to the present embodiment or in direct contact with the upper lid 9 from the heat of the heat sink 82.

FIG. 6 is a view showing the electrical equipment box 2 shown in FIGS. 1-2 exposed on the ground. 1-2 and 6, a plurality of supports 10 are installed between the inner top plate 5 and the lower cover 8 to connect the inner top plate 5 and the lower cover 8. As the inner top plate 5 rises or falls, the lower lid 8 connected to the inner top plate 5 by these supports 10 is raised or lowered at the same time, and as the lower lid 8 rises or falls, Separation or coupling between the gap 11 provided on the upper surface of the buried box 1 and the packing 81 provided on the lower surface of the lower cover 8 is automatically performed.

In addition, the supports 10 have an inner top plate 5 and a bottom cover 8 so that a user can access the electrical installation box 10 with the electrical installation box 10 located outside the buried box 1. It is a metal bar having a shape for connecting. As shown in FIGS. 1-2 and 6, the four supports 10 have a space excluding the space extending from the side of the electrical installation box 10, that is, the inner top plate, among the spaces on the upper surface of the inner top plate 4. It is installed at each of the four corners of (4). Accordingly, the user operates only the user interface of the control box 7 so that the electrical equipment box 2 located inside the buried box 1, which is sealed in a waterproof state, is automatically released from the buried box ( It can be moved to the outside of 1), and can easily access and repair the electrical equipment box (2) exposed to the outside. When the repair of the electrical equipment box 2 is completed, the user operates only the user interface of the control box 7 so that the electrical equipment box 2 located outside the buried box 1 is moved into the interior of the buried box 1. The buried box 1 can be sealed automatically as soon as the movement is completed.

When the electrical equipment of the electrical equipment box 2 is an outdoor transformer or the like, high-voltage current flows through the electrical elements such as wires, coils, and terminals constituting the electrical equipment. In this case, when the electrical elements of the electrical installation are temporarily applied with high voltage, the insulation state of the air inside the buried box 1 collapses. At this time, discharge in the air is generated together with a spark in the buried box 1. The pressure inside the buried box 1 gradually increases due to the causes of air expansion due to such a spark occurrence, air expansion due to chemical reaction heat during discharge in the air, and the like. Therefore, when a high voltage current flows through the electrical elements of the electrical installation, a decompression device for reducing the internal pressure of the buried box 1 is additionally required.

FIG. 7 shows an example of a pressure reducing device for reducing the internal pressure of the buried box 1 shown in FIG. 1. Referring to FIG. 7A, the lower cover 8 is equipped with a pressure reduction device 100 for reducing the internal pressure of the buried box 1. The number of decompression devices 100 mounted on the lower cover 8 is not limited to one, and a plurality of decompression devices 100 may be interspersed in various places of the lower cover 8. 7 (b) shows a detailed configuration of the pressure reduction device 100 mounted on the lower cover 8. Those skilled in the art can understand that the configuration shown in Figure 7 (b) is only one example, it can be equipped with a decompression device 100 having a different configuration.

Referring to FIG. 7B, the decompression device described above includes a fixed frame 101, a moving frame 102, a ball 103, a shaft 104, a spring 105, and nuts 106-107. It consists of. The fixed frame 101 and the moving frame 102 are manufactured in the form of a pipe in which air flows and a passage through which the shaft 104 can move is formed. A screw thread for coupling with the movable frame 102 is formed on the upper surface of the inner surface of the fixed frame 101, and a screw thread for coupling with the fixed frame 101 is formed on the outer surface of the movable frame 102. The moving frame 102 is inserted into and coupled to the passage of the fixed frame 101, and the engagement position with the fixed frame 101 is adjusted by adjusting the engagement length of the threads of the fixed frame 101 and the moving frame 102. Can be moved to. The nut 107 is fastened on the movable frame 102 coupled to the fixed frame 101 to fix the position of the movable frame 102.

The lower end of the outer surface of the fixing frame 101 in contact with the lower cover 8 is formed with a screw thread for engaging with the lower cover 8. As shown in FIG. 7B, the fixing frame 101 is inserted into a nut-shaped hole provided in the lower cover 8 to be coupled to the lower cover 8 together with the nut 106 to lower cover 8. It is fixed to). At least one outlet for discharging the internal air of the buried box 1 is formed at an upper portion of the outer surface of the fixing frame 101 protruding from the upper surface of the lower cover 8. One of ordinary skill in the art to which the present embodiment pertains may understand that such an outlet may be manufactured in various forms at various points.

The passage of the fixed frame 101 is composed of a suction passage for sucking the air of the buried box 1 and a discharge passage for discharging the air sucked into the suction passage. As shown in FIG. 7B, the diameter of the suction passage is smaller than the diameter of the discharge passage. A ball 103 is installed at the boundary between the discharge passage and the suction passage of the fixed frame 101, and the shaft 104 is in contact with the ball 103 at the passage of the fixed frame 101 and the moving frame 102. Is installed. It will be understood by those skilled in the art that the ball 103 and the shaft 104 may be manufactured in one piece. If air of a pressure exceeding the pressure at which the spring 105 wound on the shaft 104 is pressing the ball 103 is sucked through the inlet of the fixing frame 101, the ball 103 in the fixing frame 101 is sucked. ) Are injured. The gap between the ball 103 and the fixed frame 101 generated by the floating of the ball 103 is generated, and the air inside the buried box 1 is sucked through the gap. Air sucked in this way is discharged through the outlet of the fixed frame 101.

In particular, since the moving frame 102 can be coupled with the fixed frame 101 while moving up and down, the user can adjust the engagement position of the fixed frame 101 and the moving frame 102 to allow the spring 105 to have a ball 103. You can adjust the pressure pressing). Therefore, the decompression device 100 releases the internal air of the embedding box 1 when the internal pressure of the embedding box 1 exceeds the threshold pressure determined by the engagement position of the fixed frame 101 and the moving frame 102. Discharge to the outside of the buried box (1). In general, the air inside the buried box 1 is discharged through the outlet of the decompression device 100, but external liquid such as water may be introduced through the outlet of the decompression device 100. For example, when water accumulates on the upper surface of the lower cover 8 due to environmental factors such as rain, the accumulated water may flow into the upper surface of the lower cover 8 through the outlet of the decompression device 100. have. In this embodiment, in order to prevent the external liquid such as water from flowing into the pressure reducing device 100, the above-described critical pressure is adjusted to be larger than the inlet pressure of the liquid to be introduced into the pressure reducing device 100.

When an abnormally high voltage is applied to the electrical elements of the electrical installation of the electrical installation box 2, the air expansion inside the buried box 1 becomes very large and an explosion occurs. The decompression device 1 shown in FIG. 7 cannot cope with such an explosion because it is a device which gradually discharges the air inside the buried box 1. In particular, if the explosion inside the buried box (1) occurs in the vertical direction of the lower cover (8) and the upper cover (9) exposed to the ground can pose a great threat to the safety of urban citizens. Therefore, if an abnormally very high voltage can flow to the electrical elements of the electrical installation, there is a further need for an anti-explosion device capable of preventing such a vertical explosion.

FIG. 8 is a view showing an example of an apparatus for preventing the vertical explosion inside the buried box 1 shown in FIG. 1. In this embodiment, the explosion inside the buried box 1 is induced in the horizontal direction with respect to the ground surface in order to prevent the vertical explosion inside the buried box 1. Referring to FIG. 8, the buried box 1 is formed with a cavity for guiding an explosion in the inside 1 of the buried box in a horizontal direction with respect to the ground surface. The form of the cavity shown in FIG. 8 is only one example, and various types of cavities may be formed in the buried box 1. In order to induce the explosion inside the buried box 1 in the horizontal direction with respect to the ground surface, the coupling force between the buried box 1 and the lower cover 8 is the horizontal bearing capacity of the buried area in the buried box 1 and this area. Must be greater than the sum of the earth pressures. As described above, by inducing the explosion inside the buried box 1 in the horizontal direction with respect to the ground surface, the explosion of the electrical equipment box 2 is made underground, and the safety of urban citizens can be ensured.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

Claims

A buried box buried in the basement in the form of an open manhole, the side and the bottom of which are closed in the front direction;

A moving unit for moving the electrical equipment box located inside the buried box to the outside of the buried box through an open portion of an upper surface of the buried box;

A control box having a user interface for controlling movement of the electrical installation box by the moving unit; And

And a cover for sealing an open portion of an upper surface of the buried box with the electric equipment box located inside the buried box.
The method of claim 1,

An inner lower plate attached and installed on an inner lower surface of the buried box; And

It is further provided on the upper surface of the inner lower plate, further comprising an inner upper plate on which the electrical equipment box is mounted,

The moving unit is mounted on the inner lower plate underground buried electrical equipment container system, characterized in that to raise or lower the inner upper plate.
The method of claim 2,

The movable part underground buried electrical equipment container system, characterized in that it comprises a drive mechanism that can widen or narrow the gap between the inner lower plate and the inner upper plate.
The method of claim 3, wherein

The moving unit further comprises a motor for driving the drive mechanism in accordance with the control of the user through the control box underground buried electrical equipment container system.
The method of claim 4, wherein

The motor is a hydraulic motor, underground buried electrical equipment container system, characterized in that for generating a rotational energy using the hydraulic pressure input from the outside through a tube connected to the motor when the motor failure.
The method of claim 2,

Underground buried electrical equipment further comprises a support having a shape connecting the inner top and the cover so that the user can access the electrical equipment box in the state that the electrical equipment box is located outside of the buried box Container system.
The method of claim 2,

Further comprising a sliding guard attached to the inner side of the buried box,

The lower surface of the inner upper plate is supported by a drive mechanism installed on the inner lower plate, the underground buried electrical equipment container system, characterized in that all or part of the side surface of the inner upper plate is sliding in contact with the sliding guard.
The method of claim 1,

And the control box further comprises a security device such that only a user having a right to use the electrical facility box can access the user interface.
The method of claim 1,

The buried box is an underground buried electrical equipment container system, characterized in that the cable is connected between the electrical equipment in the electrical equipment box and the electrical equipment outside the buried box.
The method of claim 1,

The cover is equipped with a decompression device (decompression device) for reducing the internal pressure of the buried box.
The method of claim 10,

And the decompression device discharges internal air of the buried box to the outside of the buried box when the internal pressure of the buried box exceeds a predetermined threshold pressure.
The method of claim 11,

The predetermined critical pressure is greater than the inlet pressure of the liquid to be introduced into the decompression device.
The method of claim 1,

Underground buried electrical installation container system, characterized in that the buried box is formed with a cavity (cavity) to guide the explosion in the interior of the buried box in the horizontal direction to the ground surface.
The method of claim 13,

And the coupling force of the buried box and the cover is greater than the sum of the horizontal bearing force of the portion where the cavity is formed and the earth pressure applied to the portion.
A buried box in which the side and the lower surface of the front direction are closed and a part of the upper surface is buried underground in the form of an open manhole, and a gap is formed around the upper surface;

A moving unit for moving the electrical equipment box located inside the buried box to the outside of the buried box through an open portion of an upper surface of the buried box; And

And a cover provided with a packing that is press-fitted into a gap of an upper surface of the buried box while the electric equipment box is located inside the buried box.
The method of claim 15,

An inner lower plate attached and installed on an inner lower surface of the buried box; And

It is further provided on the upper surface of the inner lower plate, further comprising an inner upper plate on which the electrical equipment box (mount) mounted,

The moving unit is mounted on the inner lower plate underground buried electrical equipment container system, characterized in that to raise or lower the inner upper plate.
The method of claim 15,

Further provided between the inner top plate and the cover support for connecting the inner top plate and the cover,

The cover connected to the inner top plate by the supports are raised or lowered at the same time as the inner top plate is raised or lowered, and the gap and the packing are automatically separated or combined according to the rise or fall of the cover. Underground electrical installation container system, characterized in that said.
The method of claim 15,

And the cover is provided with a heat sink for dissipating heat generated from the electrical equipment box to the outside of the buried box.
The method of claim 18,

Underground buried, characterized in that the heat sink is provided on the upper surface of the cover exposed to the ground, the heat collecting plate for collecting heat generated from the electrical equipment box is provided on the lower surface of the cover in contact with the interior of the buried box Electrical equipment container system.