Underground power distribution line support device having fire-fighting function

The fire-suppression-capable underground power line support device addresses the inefficiencies in fire extinguishing and installation by using a support mechanism with rollers and spray lines to efficiently suppress fires and simplify the installation of underground distribution lines.

WO2026049152A1PCT designated stage Publication Date: 2026-03-05BON ENG CORP
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Patent Information

Application Number
PCT/KR2024/021464
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-30
Filing Date
2024-12-30
Publication Date
2026-03-05

AI Technical Summary

Technical Problem

Existing underground power line support devices face challenges in efficiently extinguishing fires around wire trays and are difficult to install due to the complexity of moving underground distribution lines onto the wire trays.

Method used

A fire-suppression-capable underground power line support device equipped with a support mechanism, fire detection sensor, fire extinguishing tank, spray lines, and rollers that allow for efficient fire extinguishing by spraying agents from multiple directions and facilitate easy installation of underground distribution lines by using a wire pushing mechanism.

Benefits of technology

The device enables quick and efficient fire suppression by spraying extinguishing agents in various directions and simplifies the installation process of underground distribution lines by allowing them to be easily placed on the wire support member.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to an underground power distribution line support device having a fire-fighting function, the device comprising a support mechanism (10), a fire sensor (60), a fire-extinguisher tank, a spray line (80), upward spray openings (90), lateral spray opening (100), a control valve (110), an inclined roller (20), a vertical roller (30), a horizontal roller (40), and a wire-pushing mechanism (50). The fire-extinguishing material is sprayed from multiple directions to fight fire effectively, and an underground power distribution line (L) inserted and pulled between the inclined roller (20), vertical roller (30), and horizontal roller (40) can be placed on the upper surface of a wire support part (12) conveniently and without difficulty.
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Description

Fire-suppressing underground power line support device with fire-suppressing function

[0001] The present invention relates to a fire-suppression-capable underground power line support device having a fire-suppression function.

[0002] Underground power lines are mainly installed in areas where securing urban aesthetics is necessary, where installing overhead power lines is technically impossible, or where maintenance is difficult.

[0003] These underground distribution lines (1) are installed inside the power line (3) via a wire tray (2), as shown in Fig. 1.

[0004] However, in the past, when a fire occurred around a wire tray (2) (e.g., an underground distribution line), there was a limitation in quickly and efficiently extinguishing a wide fire outbreak area.

[0005] In addition, in the past, when placing an underground distribution line (1) in a wire tray (2), it was difficult to safely move the underground distribution line (1) to the wire tray (2) and conveniently place the underground distribution line (1) on the upper surface of the wire tray (2).

[0006] The present invention was invented to solve the above-mentioned problem, and the problem is to provide an underground distribution line support device that can efficiently extinguish a fire by spraying a fire extinguishing agent from various directions, and can conveniently and effortlessly place an underground distribution line (L) pulled by being inserted between an inclined roller (20), a vertical roller (30), and a horizontal roller (40) on the upper surface of a wire support member (12).

[0007] The present invention, in order to solve the above problems,

[0008] It has become possible to put out the fire,

[0009] A fixed part (11) arranged vertically and installed on a power transmission wall (W); a wire support part (12) having a plurality of injection grooves (12a) opened upward and installed on the fixed part (11) and arranged horizontally left and right; an inclined roller installation part (13) provided on the left end of the wire support part (12) and having an upper surface inclined downward as it goes to the left; first and second vertical roller installation parts (14, 14') connected to the front left end and the rear left end of the inclined roller installation part (13) and arranged vertically but facing each other; a movable support part (15) having a through hole (15a) opened left and right and connected to the left ends of the first and second vertical roller installation parts (14, 14') and arranged vertically; a horizontal roller installation part (16) connected to the upper right end of the movable support part (15) and arranged horizontally; A support mechanism (10) having a bottom part (17) in which the left end is connected to the lower end of the movable body support part (15) and the right end is connected to the lower end of the first and second vertical roller installation parts (14, 14'); and in which the horizontal roller installation part (16), the movable body support part (15), the bottom part (17), and the first and second vertical roller installation parts (14, 14') are connected to form a pusher receiving groove (a) opened to the right;

[0010] A fire detection sensor (60) installed in the support mechanism (10) and outputting a fire detection signal when a fire is detected;

[0011] A fire extinguishing tank (70) installed on the lower surface of the wire support member (12) and containing fire extinguishing material;

[0012] A spray line (80) having a supply line (81) installed inside a wire support member (12) and having one end connected to a fire extinguishing tank (70); a plurality of upward discharge lines (82) having one end connected to the supply line (81) and the other end exposed to a spray groove (12a); and a lateral discharge line (83) installed inside a movable support member (15) and a horizontal roller installation member (16), having one end connected to the supply line (81) and the other end exposed to the right of the horizontal roller installation member (26);

[0013] An upper injection port (90) that is installed in the injection groove (12a) so as not to protrude upwards from the upper surface of the wire support member (12) and is connected to the upper discharge line (82), and sprays the extinguishing agent vertically upwards;

[0014] A side spray port (100) that is placed on the right side of the horizontal roller installation part (16) and is connected to the side discharge line (83) and sprays extinguishing material horizontally;

[0015] A control valve (110) installed in a supply line (81) to control the movement of extinguishing material from a fire tank (70) to a supply line (81), and opened when a fire detection signal is received from a fire detection sensor (60);

[0016] A pair of inclined rollers (20) having a rotating shaft (21) installed in an inclined roller installation section (13) and arranged to be inclined downwards as it goes to the left, and a rotating body (22) installed on the rotating shaft (21) so as to be able to rotate clockwise or counterclockwise around the rotating shaft (22), and facing each other in the front and rear;

[0017] Each vertical roller (30) is installed so as to be vertically arranged on the right side of the first and second vertical roller installation parts (14, 14'), but is installed so as to be rotatable clockwise or counterclockwise around the Z-axis;

[0018] A pair of horizontal rollers (40) installed so as to be arranged horizontally on the lower surface of the horizontal roller installation part (16), but installed so as to be rotatable clockwise or counterclockwise around the X-axis, and provided facing each other in the front and rear;

[0019] A cylinder (51) having a movable support member (15) installed on the left side; a movable body (52) whose left end is installed to be able to move left and right on the cylinder (52) and whose right end protrudes into a receiving space (a) by passing through a passage hole (15a) of the movable support member (15); a pusher (53) having a curved shape and being received in the receiving space (a); an operating switch (54) installed on the cylinder (51) to turn the cylinder (51) on and off; and when the cylinder (51) is driven, a wire pushing mechanism (50) that pushes an underground distribution line (L) located between an inclined roller (20), a vertical roller (30), and a horizontal roller (40) to the upper surface of the wire support member (12) by the pusher (53) that moves along the rightward movement of the movable body (52).

[0020] It is characterized by including.

[0021] The present invention, which is a means for solving the above-described problem, includes a support mechanism (10), a fire detection sensor (60), a fire extinguishing tank (70), a spray line (80), an upward spray port (90), a lateral spray port (100), a control valve (110), an inclined roller (20), a vertical roller (30), a horizontal roller (40), and a wire pushing mechanism (50), and can efficiently extinguish a fire by spraying a fire extinguishing agent from various directions, and has the effect of allowing an underground distribution line (L) inserted and pulled between the inclined roller (20), the vertical roller (30), and the horizontal roller (40) to be conveniently and effortlessly placed on the upper surface of the wire support member (12).

[0022] Figure 1 is a drawing for explaining the prior art,

[0023] Figure 2 is a partial cross-sectional view for explaining the present invention,

[0024] Figure 3 is a drawing showing a part of Figure 2,

[0025] Fig. 4 is a cross-sectional perspective view showing the support mechanism and wire pushing mechanism along the X-X' line of Fig. 3 of the present invention.

[0026] Figures 5 and 6 are drawings for explaining the operation of the present invention.

[0027]

[0028] [Explanation of symbols]

[0029] 10: Support mechanism 20: Inclined roller

[0030] 30: Vertical roller 40: Horizontal roller

[0031] 50: Wire pushing mechanism 60: Fire detection sensor

[0032] 70: Digestion tank 80: Injection line

[0033] 90: Upward spray port 100: Side spray port

[0034] 110: Control valve a: Pusher receiving groove

[0035] The present invention is described below so that it can be easily implemented by a person skilled in the art.

[0036]

[0037] FIG. 2 is a partial cross-sectional view for explaining the present invention, FIG. 3 is a drawing showing a part of FIG. 2, and FIG. 4 is a cross-sectional perspective view showing a support mechanism and a wire pushing mechanism along the X-X' line of FIG. 3 of the present invention. The configuration of the present invention will be described as follows with reference to FIGS. 2 to 4. Meanwhile, in the present embodiment, the directionality of the configuration of the present embodiment is described with the XYZ coordinates on FIG. 4, and the X-axis direction on FIG. 4 is left-right (left-right direction), the Y-axis direction on FIG. 4 is front-rear (front-rear direction), and the Z-axis direction on FIG. 4 is up-down (up-down direction). In addition, the direction of each configuration in the present embodiment is one example, and the direction of each configuration may be interpreted differently depending on how the standard is set.

[0038] A fire-suppressing underground power line support device having a fire-suppressing function according to the present invention is capable of fire suppression and includes a support mechanism (10), a fire detection sensor (60), a fire extinguishing tank (70), an injection line (80), an upward injection port (90), a lateral injection port (100), a control valve (110), an inclined roller (20), a vertical roller (30), a horizontal roller (40), and a wire pushing mechanism (50).

[0039] The above support mechanism (10), as shown in FIGS. 2 to 4, has a fixed portion (11), a wire support portion (12), an inclined roller installation portion (13), first and second vertical roller installation portions (14, 14'), a movable body support portion (15), a horizontal roller installation portion (16), and a bottom portion (17).

[0040] The above-mentioned fixed part (11) is installed in a vertical direction on the power grid wall (W). In this embodiment, the fixed part (11) has a plate shape.

[0041] The above-mentioned wire support member (12) has a plurality of injection grooves (12a) that are opened upward, and is installed on the fixed member (11) and horizontally arranged left and right. In this embodiment, the wire support member (12) has an overall square bar shape, and a plurality of underground distribution lines (L) are arranged on the upper surface.

[0042] The above-mentioned inclined roller installation part (13) is provided on the left end of the wire support part (12), and is provided so that the upper surface is inclined downward as it goes to the left.

[0043] The above first and second vertical roller installation parts (14, 14') are connected to the front left end and the rear left end of the inclined roller installation part (13), respectively, and are arranged vertically but facing each other.

[0044] The above-mentioned movable support member (15) has a through hole (15a) opened to the left and right, and is connected to the left end of the first and second vertical roller installation members (14, 14'), but is arranged in a vertical direction.

[0045] The above horizontal roller installation part (16) is connected to the upper right part of the moving body support part (15) and is arranged horizontally.

[0046] The above bottom part (17) is connected at the left end to the lower end of the movable body support part (15) and at the right end to the lower end of the first and second vertical roller installation parts (14, 14').

[0047] In this support mechanism (10), a horizontal roller installation part (16), a movable body support part (15), a floor part (17), and the first and second vertical roller installation parts (14, 14') are connected to form a pusher receiving groove (a) that is opened to the right.

[0048] The above fire detection sensor (60), as illustrated in Fig. 2, is installed on the support mechanism (10) and outputs a fire detection signal when it detects a fire. In this embodiment, the fire detection sensor (60) is installed on the upper portion of the fixing member (11).

[0049] The above-described fire extinguishing tank (70), as illustrated in FIG. 2, is installed on the lower surface of the wire support member (12) to accommodate fire extinguishing agents. In this embodiment, the fire extinguishing agent is stored in the fire extinguishing tank (70) at high pressure. Furthermore, in this embodiment, the fire extinguishing agent may be a liquid fire extinguishing agent. Furthermore, in this embodiment, the fire extinguishing tank (70) may be installed on the wire support member (12) via a separate bracket. Meanwhile, in this embodiment, the installation location of the fire extinguishing tank (70) may be modified in various ways, as long as it can supply the fire extinguishing agent to the injection line (80).

[0050] The above injection line (80) has a supply line (81), an upper discharge line (82), and a side discharge line (83), as shown in FIGS. 2 and 3.

[0051] The above supply line (81) is installed inside the wire support member (12), and one end is connected to the digestion tank (70). In the present embodiment, one end of the supply line (81) protrudes outside the wire support member (12) and is connected to the digestion tank (70). Meanwhile, in the present embodiment, the supply line (81) is arranged in a pipe shape to the left and right.

[0052] The above-mentioned upper discharge line (82) has one end connected to the supply line (81) and the other end exposed as an injection groove (12a). In the present embodiment, one end of the upper discharge line (82) is connected to the other end of the supply line (81). In addition, in the present embodiment, a plurality of upper discharge lines (82) are provided. Meanwhile, in the present embodiment, the upper discharge lines (82) are arranged in a pipe shape and are arranged vertically.

[0053] The above-mentioned lateral discharge line (83) is installed in the movable body support member (15) and the horizontal roller installation member (16), one end is connected to the supply line (81), and the other end is exposed to the right of the horizontal roller installation member (26). In the present embodiment, one end of the lateral discharge line (83) is connected to the other end of the supply line (81). In addition, in the present embodiment, the lateral discharge line (83) is installed in the movable body support member (15) and the horizontal roller installation member (16) so as to avoid the passage hole (15a). Meanwhile, in the present embodiment, the lateral discharge line (83) has a pipe shape.

[0054] The above-mentioned upper spray port (90), as illustrated in FIGS. 2 and 3, is installed in the spray groove (12a) so as not to protrude upwards from the upper surface of the wire support member (12), is connected to the upper discharge line (82), and sprays the extinguishing agent vertically upward. In the present embodiment, the upper spray port (90) is connected to the other end of the upper discharge line (82). Meanwhile, in the present embodiment, the upper spray port (90) is arranged in the spray groove (12a), so as not to interfere with the underground distribution line (L) arranged in the wire support member (12). In addition, in the present embodiment, the upper spray port (90) may have a nozzle shape.

[0055] The above-mentioned lateral spray port (100), as illustrated in FIGS. 2 and 3, is arranged on the right side of the horizontal roller installation part (16), connected to the lateral discharge line (83), and sprays the extinguishing agent horizontally and rightward. In the present embodiment, the lateral spray port (100) is connected to the other end of the lateral discharge line (83). Meanwhile, in the present embodiment, the lateral spray port (100) may be in the form of a nozzle.

[0056] The above control valve (110), as illustrated in FIGS. 2 and 3, is installed in the supply line (81) to control the movement of extinguishing agents from the fire tank (70) to the supply line (81), and opens when a fire detection signal is received from the fire detection sensor (60). In the present embodiment, the control valve (110) is installed in the supply line (81) so as to be located outside the wire support member (12). In addition, in the present embodiment, the control valve (110) may be installed in the fire tank (70) as long as it can control the movement of extinguishing agents from the fire tank (70) to the supply line (81). Meanwhile, in the present embodiment, the control valve (110) may be an electronic valve type, and for example, may be a solenoid valve type.

[0057] The above-mentioned inclined roller (20) has a rotational axis (21) and a rotational body (22), as shown in FIGS. 2 and 3.

[0058] The above-mentioned rotation shaft (21) is installed in the inclined roller installation part (13) and is arranged so as to be inclined downwards as it goes to the left. In this embodiment, the rotation shaft (21) is supported by supports (23) that are opposed to each other on the left and right.

[0059] The above-mentioned rotating body (22) is installed on the rotating shaft (21) so as to be able to rotate clockwise or counterclockwise around the rotating shaft (22).

[0060] These inclined rollers (20) are provided in pairs facing each other in the front and rear directions. In this embodiment, the pair of inclined rollers (20) are respectively positioned on the same line in the X-axis direction as the first and second vertical roller installation parts (14, 14') on the XY plane.

[0061] The vertical roller (30) is installed vertically on the right side of the first and second vertical roller installation parts (14, 14') as shown in FIGS. 2 and 3, and is installed so as to be rotatable clockwise or counterclockwise around the Z-axis. In this embodiment, a pair of vertical rollers (30) are provided facing each other in the front and rear directions.

[0062] The above horizontal roller (40), as illustrated in FIGS. 2 and 3, is installed horizontally on the lower surface of the horizontal roller installation part (16), and is installed so as to be rotatable clockwise or counterclockwise around the X-axis. In the present embodiment, a pair of horizontal rollers (40) are provided facing each other in the front and rear directions. Meanwhile, in the present embodiment, a pair of horizontal rollers (40) are respectively positioned on the same line in the X-axis direction as the first and second vertical roller installation parts (14, 14') on the XY plane.

[0063] The above wire pushing mechanism (50) has a cylinder (51), a moving body (52), a pusher (53), and an operating switch (54), as shown in FIGS. 2 and 3.

[0064] The above cylinder (51) has a movable body support member (15) installed on the left side.

[0065] The above-mentioned moving body (52) is installed so that the left end can move left and right on the cylinder (52), and the right end passes through the passage hole (15a) of the moving body support part (15) and protrudes into the receiving space (a). In this embodiment, the moving body (52) has a bar shape.

[0066] The above pusher (53) has a curved shape and is accommodated in the accommodation space (a). In this embodiment, the pusher (53) has a curved plate shape.

[0067] The above-mentioned operating switch (54) is installed in the cylinder (51) and turns the operation of the cylinder (51) on and off. In this embodiment, the position of the operating switch (54) can be changed in various ways as long as it can turn the operation of the cylinder (51) on and off (control).

[0068] This wire pushing mechanism (50) pushes the underground distribution line (L) located between the inclined roller (20), the vertical roller (30), and the horizontal roller (40) to the upper surface of the wire support member (12) by the pusher (53) that moves along the rightward movement of the moving body (52) when the cylinder (51) is driven. Meanwhile, in the present embodiment, the wire pushing mechanism (50) can be driven by a pneumatic cylinder method or a hydraulic cylinder method.

[0069] Meanwhile, in the present invention, a plurality of underground distribution line support devices may be provided on the inner wall of the power trench (W) in the upper and lower directions, and a plurality of devices may be provided on the inner wall of the power trench (W) in the front and rear directions.

[0070]

[0071] FIG. 5 and FIG. 6 are diagrams for explaining the operation of the present invention. The operation of the present invention will be explained with reference to FIG. 5 and FIG. 6 as follows.

[0072] In a state as shown in Fig. 2, if a fire occurs in the underground distribution line (L) or around the underground distribution line (L), the fire detection sensor (60) detects it and outputs a fire detection signal to the control valve (110).

[0073] Then, when the control valve (110) is opened, the extinguishing agent in the extinguishing tank (70) is discharged at high pressure and supplied to the supply line (81).

[0074] Afterwards, the digestive material in the supply line (81) moves to the upper discharge line (82) and is sprayed through the upper injection port (90), and moves to the side discharge line (83) and is sprayed through the side injection port (100).

[0075] Accordingly, as shown in Fig. 5, fire extinguishing agents are sprayed in all directions around the underground distribution line (L), so that fire suppression is accomplished quickly and efficiently.

[0076] Meanwhile, the installation work of the underground distribution line (L) in the present invention is as follows.

[0077] First, the underground distribution line (L) is inserted into the inclined roller (20), vertical roller (30), and horizontal roller (40), and the underground distribution line (L) is pulled and moved to the desired position.

[0078] At this time, since the inclined roller (20) is inclined, when the underground distribution line (L) is pulled and moves forward and backward, the underground distribution line (L) moves stably without being separated from between the vertical roller (30), the horizontal roller (40), and the inclined roller (20).

[0079] However, in this case, after pulling the underground distribution line (L) to the desired position, when moving the underground distribution line (L) to the wire support member (12), the inclined roller (20) is inclined, making it very difficult for the worker to move the underground distribution line (L) to the wire support member (12).

[0080] However, in the case of the present invention, when the underground distribution line (L) is pulled to the desired position and the worker operates the operating switch (54) to drive the cylinder (51), the moving body (52) moves to the right as shown in Fig. 6(a) so that the pusher (53) comes into contact with the underground distribution line (L).

[0081] At this time, the pusher (53) moves while pushing the underground distribution line (L) to the right, and the underground distribution line (L) moves upward to the right as shown in Fig. 6(b) and passes over the inclined roller (20) and is settled on the wire support member (12) as shown in Fig. 6(c).

[0082] Afterwards, the worker can easily move the underground distribution line (L) to the right and place the underground distribution line (L) on the wire support member (12).

[0083] Meanwhile, the underground distribution line (L) laid in this way can be connected to a connector provided at the user, etc.

[0084]

[0085] As described above, the present invention has the effect of being able to quickly and efficiently extinguish a fire by spraying fire extinguishing agents in all directions from the point of fire occurrence when a fire occurs around an underground distribution line (L).

[0086] In addition, the present invention has the effect of allowing the underground distribution line (L) to easily pass over the inclined roller (20) by the wire pushing mechanism (50) when the underground distribution line (L) is installed by inserting the underground distribution line (L) between the inclined roller (20), the vertical roller (30), and the horizontal roller (40) and then pulling the underground distribution line (L), thereby conveniently moving the underground distribution line (L) inserted into the inclined roller (20), the vertical roller (30), and the horizontal roller (40) to the wire support member (12). Therefore, the present invention has the effect of reducing the labor of workers and improving safety and work efficiency when installing the underground distribution line (L).

[0087] In addition, the present invention has the effect of making it convenient to pull the underground distribution line (L) by inserting the underground distribution line (L) between the inclined roller (20), the vertical roller (30), and the horizontal roller (40) so that the pusher (53) is placed in the pusher receiving groove (a), and thus, interference between the pusher (53) and the underground distribution line (L) does not occur when the underground distribution line (L) is pulled.

[0088]

[0089] Meanwhile, the present invention is defined as a 'fire-suppression-capable underground distribution line support device with a fire-suppression function' in that it has a structure for underground distribution, such as a structure for fire suppression, in a structure supporting an underground distribution line (L), and the subject matter of the present invention is defined as an 'underground distribution line support device'.

Claims

1. It has become possible to extinguish fires. A fixed part (11) arranged vertically and installed on a power transmission wall (W); a wire support part (12) having a plurality of injection grooves (12a) opened upward and installed on the fixed part (11) and arranged horizontally left and right; an inclined roller installation part (13) provided on the left end of the wire support part (12) and having an upper surface inclined downward as it goes to the left; first and second vertical roller installation parts (14, 14') connected to the front left end and the rear left end of the inclined roller installation part (13) and arranged vertically but facing each other; a movable support part (15) having a through hole (15a) opened left and right and connected to the left ends of the first and second vertical roller installation parts (14, 14') and arranged vertically; a horizontal roller installation part (16) connected to the upper right end of the movable support part (15) and arranged horizontally; A support mechanism (10) having a bottom part (17) in which the left end is connected to the lower end of the movable body support part (15) and the right end is connected to the lower end of the first and second vertical roller installation parts (14, 14'); and in which the horizontal roller installation part (16), the movable body support part (15), the bottom part (17), and the first and second vertical roller installation parts (14, 14') are connected to form a pusher receiving groove (a) opened to the right; A fire detection sensor (60) installed in the support mechanism (10) and outputting a fire detection signal when a fire is detected; A fire extinguishing tank (70) installed on the lower surface of the wire support member (12) and containing fire extinguishing material; A spray line (80) having a supply line (81) installed inside a wire support member (12) and having one end connected to a fire extinguishing tank (70); a plurality of upward discharge lines (82) having one end connected to the supply line (81) and the other end exposed to a spray groove (12a); and a lateral discharge line (83) installed inside a movable support member (15) and a horizontal roller installation member (16), having one end connected to the supply line (81) and the other end exposed to the right of the horizontal roller installation member (26); An upper injection port (90) that is installed in the injection groove (12a) so as not to protrude upwards from the upper surface of the wire support member (12) and is connected to the upper discharge line (82), and sprays the extinguishing agent vertically upwards; A side spray port (100) that is placed on the right side of the horizontal roller installation part (16) and is connected to the side discharge line (83) and sprays extinguishing material horizontally; A control valve (110) installed in a supply line (81) to control the movement of extinguishing material from a fire tank (70) to a supply line (81), and opened when a fire detection signal is received from a fire detection sensor (60); A pair of inclined rollers (20) having a rotating shaft (21) installed in an inclined roller installation section (13) and arranged to be inclined downwards as it goes to the left, and a rotating body (22) installed on the rotating shaft (21) so as to be able to rotate clockwise or counterclockwise around the rotating shaft (22), and facing each other in the front and rear; Each vertical roller (30) is installed so as to be vertically arranged on the right side of the first and second vertical roller installation parts (14, 14'), but is installed so as to be rotatable clockwise or counterclockwise around the Z-axis; A pair of horizontal rollers (40) installed so as to be arranged horizontally on the lower surface of the horizontal roller installation part (16), but installed so as to be rotatable clockwise or counterclockwise around the X-axis, and provided facing each other in the front and rear; A cylinder (51) having a movable support member (15) installed on the left side; a movable body (52) whose left end is installed to be able to move left and right on the cylinder (52) and whose right end protrudes into a receiving space (a) by passing through a passage hole (15a) of the movable support member (15); a pusher (53) having a curved shape and being received in the receiving space (a); an operating switch (54) installed on the cylinder (51) to turn the cylinder (51) on and off; and when the cylinder (51) is driven, a wire pushing mechanism (50) that pushes an underground distribution line (L) located between an inclined roller (20), a vertical roller (30), and a horizontal roller (40) to the upper surface of the wire support member (12) by the pusher (53) that moves along the rightward movement of the movable body (52). An underground power line support device characterized by including a .

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