Underground transmission line support structure with enhanced space utilization within the power conduit

Abstract

The present invention relates to an underground transmission line support structure that increases space utilization within a power conduit, comprising a support angle (100), a support angle (200), a mounting bracket (300), a laying device (400), a storage box (500), and a hoist (600). According to this, the underground transmission line (L) can be conveniently installed on the support angle (200) or removed from the support angle (200), thereby reducing the risk of musculoskeletal injury to the worker. Additionally, the underground transmission line (L) can be laid easily and conveniently using the laying device (400), thereby improving work efficiency. Furthermore, the mounting bracket (300), which interconnects the support angles (200), can be used for access control or to support the hoist (600).

Description

Technology Field

[0001] The present invention relates to an underground transmission line support structure that increases space utilization within a power conduit. Background Technology

[0002] High-voltage electricity transmitted via overhead transmission from power plants or substations is adjusted to underground transmission near urban areas.

[0003] Generally, a power conduit consists of an underground structure made of concrete and forming a tunnel shape, and multiple cantilever-shaped support devices (or connecting mechanisms) installed in a row along the wall of the underground structure, and underground transmission lines are placed on the support devices for storage and fixation.

[0004] However, since underground transmission lines are relatively heavy cables, it was by no means an easy task for a worker to manually place the underground transmission lines onto multiple support devices one by one to adjust their positions.

[0005] Therefore, active progress is being made on connecting devices that allow workers to easily partially lift heavy underground transmission lines from underground structures up to the upper surface of the support device. Prior art literature

[0006] 1. Republic of Korea Registered Patent No. 10-2183975 The problem to be solved

[0007] The purpose of the present invention is to provide an underground power line support structure that increases space utilization within a power conduit, which allows underground power lines to be conveniently installed on or removed from support angles, thereby reducing the risk of musculoskeletal injury to workers; improves work efficiency by enabling easy and convenient installation of underground power lines using a laying device; and utilizes a mounting bracket that interconnects the support angles for purposes such as access control or supporting a hoist. means of solving the problem

[0009] The present invention for achieving the above objective is,

[0010] Support angles installed on each of the inner side walls of the power conduit and positioned to face each other, and installed at regular intervals along the front-to-back length direction of the power conduit;

[0011] A bracket part that is detachably installed on a support angle, and

[0012] Support angles comprising a support arm portion that extends horizontally from a bracket portion toward an opposite wall to support an underground transmission line, installed on each support angle and arranged to face each other, and installed at regular intervals along the vertical length direction of the support angle;

[0013] A curved section in the shape of an arc equipped with a hook, and

[0014] A rotating part having a first mounting hole that penetrates vertically, which is installed to be rotatable via a support angle shaft member of one of the support angles arranged facing each other and extending horizontally from one end of the curved part, and

[0015] A mounting bracket comprising a fastening part that is installed detachably via a fastening means on a support angle extending horizontally from the other end of a curved part and having a rotating part, or rotates around the rotating part and is installed detachably via a fastening means on the remaining support angle, and is equipped with a second mounting hole that penetrates vertically;

[0016] A body having a 'C' shape with an interior open to one side so that an underground transmission line to be laid can be inserted and removed, and fixed by a nut that is inserted into and fastened to the first and second mounting holes respectively via a fastening bolt protruding parallel to each other on the lower surface, wherein the interior is formed such that the upper surface, the side surface, and the lower surface are orthogonal to each other, and the outer surface has an inclined section formed to slope downward from the end of the opening so that the underground transmission line drawn out from the opening can be drawn out along the inclined surface;

[0017] A laying mechanism composed of idlers that are rotatably installed on the inner upper, side, and lower surfaces of the body, respectively, to reduce friction when moving underground transmission lines;

[0018] A storage box installed on the lower surface of a lower support angle positioned adjacent to the inner floor surface of a power conduit;

[0019] It is characterized by including a hoist that is stored in a storage box, is withdrawn from the storage box and detachably installed on a hook portion of a mounting bracket, and lifts an underground transmission line placed on the floor of a power conduit so that it can be placed on the upper surface of a support angle. Effects of the invention

[0021] The present invention allows underground power transmission lines to be conveniently installed on or removed from support angles, thereby reducing the risk of musculoskeletal injury to workers. It also improves work efficiency by allowing underground power transmission lines to be laid easily and conveniently using a laying device, and can be used for access control or to support a hoist by utilizing a mounting bracket that interconnects the support angles. Brief explanation of the drawing

[0023] FIG. 1 is a perspective view of an underground transmission line support structure with increased space utilization within a power conduit according to the present invention. FIG. 2 is a front view of an underground transmission line support structure with increased space utilization within a power conduit according to the present invention. FIG. 3 is a bottom exploded perspective view showing the support angle, mounting bracket, and laying mechanism separately extracted from an underground transmission line support structure with increased space utilization within a power conduit according to the present invention. FIG. 4 is a cross-sectional view of the combination of a mounting bracket and a laying mechanism in an underground transmission line support structure with increased space utilization within a power conduit according to the present invention. FIG. 5 is a perspective view showing a laying mechanism separately extracted from an underground transmission line support structure that increases space utilization within a power conduit according to the present invention. FIG. 6 is a drawing for explaining the operation of a mounting bracket installed on a support angle in an underground transmission line support structure that increases space utilization within a power conduit according to the present invention. FIGS. 7 to 11 are drawings for explaining the effects of an underground transmission line support structure that increases space utilization within a power conduit according to the present invention. Specific details for implementing the invention

[0024] The following is a detailed explanation based on the attached drawings.

[0025] FIG. 1 is a perspective view of an underground transmission line support structure with increased space utilization within a power conduit according to the present invention, FIG. 2 is a front view of an underground transmission line support structure with increased space utilization within a power conduit according to the present invention, FIG. 3 is a bottom exploded perspective view showing a support angle, a mounting bracket, and a laying mechanism separately extracted from an underground transmission line support structure with increased space utilization within a power conduit according to the present invention, FIG. 4 is a combined cross-sectional view of a mounting bracket and a laying mechanism in an underground transmission line support structure with increased space utilization within a power conduit according to the present invention, FIG. 5 is a perspective view showing a laying mechanism separately extracted from an underground transmission line support structure with increased space utilization within a power conduit according to the present invention, and FIG. 6 is a drawing for explaining the operation of a mounting bracket installed on a support angle in an underground transmission line support structure with increased space utilization within a power conduit according to the present invention.

[0026] Referring to FIGS. 1 to 3, the underground transmission line support structure according to the present invention, which increases space utilization within a power conduit, is composed of a support angle (100), a support angle (200), a mounting bracket (300), a laying mechanism (400), a storage box (500), and a hoist (600). According to this, the underground transmission line (L) and other power lines can be conveniently installed on the support angle (200) or removed from the support angle (200), thereby reducing the risk of musculoskeletal injury to the worker. Additionally, the underground transmission line (L) can be laid easily and conveniently using the laying mechanism (400), thereby improving work efficiency. Furthermore, the mounting bracket (300) that interconnects the support angles (200) can be used for access control or to support the hoist (600).

[0027] Referring to FIGS. 1 and 2, the support angle (100) is a member having a cross-section in the shape of an 'ㄱ'. In the case of the present embodiment, it is installed on both sides (left and right) of the wall surface (W) inside the power conduit (T) via a fixing means (e.g., anchor bolt) and arranged to face each other, and is installed at regular intervals along the front-to-back length direction of the power conduit (T).

[0028] A support angle (200) on which a mounting bracket (300) and a laying mechanism (400) are installed is detachably installed on the above-mentioned support angle (100).

[0029] Referring to FIGS. 1 to 3, the support angle (200) is composed of a bracket part (210) and a support arm part (220). In the present embodiment, it is installed in a cantilevered form on the support angle (100) and arranged to face each other, and is installed along the vertical length direction of the support angle (100) and serves to support the underground transmission line (L) being installed.

[0030] The above bracket part (210) is detachably installed on the support angle (100) via a fixing means (bolt and nut).

[0031] The above-mentioned support arm (220) extends horizontally from the bracket (210) toward the opposite wall (W) and serves to support the underground transmission line (L).

[0032] For example, the above-mentioned support arm (220) may be a rectangular tube, or, as in the present embodiment, a member having an L-shaped cross-section may be used.

[0033] Holes (see FIG. 3) are formed at both ends of the support arm (220). In the hole at one end (the hole adjacent to the mounting part), the fastening part (330) of the mounting bracket (300) is installed so as to be detachably connected via a fastening means (BN: bolt and nut), and in the hole at the other end, the rotating part (320) of the mounting bracket (300) is installed so as to be rotatable via an axle member (S: rivet).

[0034] The support angle (200) having the structure as described above is installed in a cantilevered form on each support angle (100) as shown in FIG. 2, arranged in a line along the same horizontal line, with the ends spaced apart from each other so that a worker can walk, and is interconnected through a support stand (300).

[0035] Additionally, the support angles (200) are installed so as to be spaced apart vertically along the longitudinal direction of the support angles (100), and a mounting bracket (300) is rotatably installed on one of the support angles (200) arranged on the same horizontal line.

[0036] Referring to FIGS. 1 to 4, the mounting bracket (300) is a member having a 'C'-shaped cross-section composed of a curved portion (310), a rotating portion (320), and a fastening portion (330). In the present embodiment, it is rotatably installed on one of the support angles (200) arranged along the same horizontal line and can be used as a hook to hang a hoist (600) while connecting the support angles (200) that are spaced apart from each other, or as a means to control access to a workspace.

[0037] The above-mentioned curved portion (310) is a member in the shape of an arc, and a hanging portion (311) is integrally formed in the center, and a hoist (600) is detachably installed on the hanging portion (311).

[0038] In particular, the above-mentioned curved portion (310) is manufactured with a width that is relatively wider than the width of the rotating portion (320) or the fastening portion (330) around the hook portion (311).

[0039] Additionally, the above-mentioned curved portion (310) becomes convex upward when the mounting bracket (300) is rotated around the shaft member (S) and placed between the support angles (200). As shown in FIG. 6, when a load is applied downward around the hook portion (311), the force is distributed to the support angles (200) through the curved portion (310), the rotating portion (320), and the fastening portion (330), thereby pushing the support angles (200) and enabling stable support.

[0040] The above-mentioned rotating part (320) and fastening part (330) each extend horizontally from the end of the curved part (310) and are arranged opposite each other with respect to the curved part (310).

[0041] A pair of first mounting holes (321) and second mounting holes (331) are formed in the rotating part (320) and the fastening part (330), respectively, which are vertically penetrating, and a laying mechanism (400) is inserted into the first and second mounting holes (321, 331) via a fastening bolt (B) and is fixed so as to be detachably attached via a nut (N) that is fastened.

[0042] The above-mentioned rotating part (320) is rotatably installed at the other end of the supporting arm (220) via a shaft member (S: rivet), and the fastening part (330) is detachably installed at one end of the supporting arm (220) via a fastening means (BN: bolt and nut).

[0043] For example, after separating the fastening means (BN: bolt and nut) that was fixing the fastening part (330), the mounting bracket (300) is rotated around the shaft member (S), and the fastening part (330) of the mounting bracket (300) is positioned at the end of the opposite support angle (200). When positioned in this way, the support angle (200) and the fastening part (330) are fixed through the separated fastening means (BN: bolt and nut).

[0044] Referring to FIGS. 1 to 5, the laying mechanism (400) is composed of a body (410) and an idler (420). In the case of the present embodiment, it is detachably installed on a mounting bracket (300) and used for laying an underground transmission line (L).

[0045] The above body (410) has a 'C' shape with an interior that is open to one side so that an underground transmission line (L) to be laid can be inserted and removed, and more specifically, has an opening (411) that is opened at an angle toward the laying direction and the wall (W) of the power conduit (T).

[0046] These bodies (410) are inserted into the first and second mounting points (321, 331) respectively via fastening bolts (B) protruding parallel to each other on the lower surface, and are fixed by fastening nuts (N).

[0047] The interior of the opening (411) of the body (410) is shaped like a rhombus, with the upper surface, side surface, and lower surface being orthogonal to each other. When the opening (411) is formed in this rhombus shape, the underground power transmission line (L) introduced into the interior slides and is positioned as close as possible to the inner side surface. This allows the movement of the underground power distribution line (L) to the left and right to be suppressed as much as possible during the laying process, thereby enabling stable operation.

[0048] In addition, an inclined portion (412) is integrally formed on the outer surface of the body (410) so as to be sloped downward from the end of the opening (411) to safely draw out the underground power line (L) drawn out from the opening (411).

[0049] As described above, by providing an inclined section (412) on the body (410), the underground transmission line (L) can be safely pulled out and easily moved to the supporting arm (220), which is very useful.

[0050] The above idler (420) is installed on the inner upper surface, side, and lower surface of the body (410) so as to be rotatable in place, and when the underground transmission line (L) moves in the laying direction, it rotates in place to reduce friction.

[0051] Referring to FIGS. 1 and 2, the storage box (500) is installed on the lower surface of a lower support angle (200) that is positioned adjacent to the inner bottom surface of a power conduit (T), and more specifically, it is installed on a support angle (200) where a mounting bracket (300) is not installed.

[0052] This storage box (500) has a storage space inside to store a hoist (600) and is equipped with a door with a handle that can be opened and closed.

[0053] Referring to FIGS. 1, 2 and 8, the hoist (600) is a known portable manual chain hoist that can be used without power, has low maintenance costs, and can be operated by manipulating a hand chain or lever with human strength. In the present embodiment, it is stored in a storage box (500) so as to be stored and pulled out, and is detachably installed on a hook (311) of a stand (300) to lift a heavy underground power line (L) and install it on a support angle (200), or to lower an underground power line (L) installed on a support angle (200).

[0054] Since the above hoist (600) is a widely known technology in the field, a detailed description (structure, operation method, etc.) thereof is omitted.

[0055] FIGS. 7 to 11 are drawings for explaining the effects of an underground transmission line support structure that increases space utilization within a power conduit according to the present invention, and with reference thereto, the explanation is as follows.

[0056] As shown in Fig. 7, an underground transmission line (L) to be laid on the bottom of the power conduit (T) is placed.

[0057] Next, the fastening means (BN: bolt and nut) that was fixing the fastening part (330) of the mounting bracket (300) is separated, and the mounting bracket (300) is rotated around the shaft member (S) so that the fastening part (330) of the mounting bracket (300) is positioned at the end of the opposite support angle (200), and the support angle (200) and the fastening part (330) are fixed through the separated fastening means (BN: bolt and nut), and accordingly, the support angle (200) is interconnected through the mounting bracket (300).

[0058] In particular, when the stand (300) is positioned as described above, the curved portion (310) becomes convex upward.

[0059] Meanwhile, when the stand (300) is positioned as described above, the door of the storage box (500) is opened, and the hoist (600) stored inside is pulled out, and the pulled-out hoist (600) is hung on the hook (311) of the curved part (310) as shown in FIG. 8.

[0060] Then, the worker lifts the underground transmission line (L) to be laid using the hook of the hoist (600) and places the underground transmission line (L) on the support angle (200).

[0061] The remaining underground transmission lines (L) can also be mounted on the support angle (200) in the same way as above.

[0062] Meanwhile, if access control is required for a section of the power conduit (T), the fastening means (BN: bolt and nut) that was fixing the fastening part (330) of the mounting bracket (300) is separated, and the mounting bracket (300) is rotated around the shaft member (S) so that the fastening part (330) of the mounting bracket (300) is positioned at the end of the opposite support angle (200), and the support angle (200) and the fastening part (330) are fixed through the separated fastening means (BN: bolt and nut), and accordingly, the support angle (200) is interconnected through the mounting bracket (300).

[0063] Access can be controlled by blocking the space between the support angles (200) placed at the top and bottom respectively in the manner described above with a support (300), as illustrated in FIG. 9.

[0064] Meanwhile, when laying underground transmission lines (L) and other power lines without using a hoist (600), as shown in FIG. 8, if the support angles (200) are interconnected via a mounting bracket (300), the laying mechanism (400) installed on the mounting bracket (300) is exposed upward.

[0065] Next, as shown in FIGS. 8 and 10, the underground transmission line (L) to be laid is inserted inward through the opening (411) of the body (410) so that it is placed on the idler (232) of the laying mechanism (400).

[0066] Next, when the worker grabs and pulls the tip of the inserted underground power line (L), the underground power line (L) moves, and at this time, the idler (420) rotates in place, reducing friction with the underground power line (L).

[0067] In particular, as the idler (420) installed in the opening (411) of the body (410) is arranged in a rhombus shape, the underground power line (L) introduced into the interior is positioned as close as possible to the idler (420) placed on the inner side during the sliding movement process, thereby minimizing the left-right movement of the underground power line (L) during the laying process, allowing the work to proceed stably.

[0068] When the underground transmission line (L) is laid up to the planned section, as shown in FIG. 11, the worker pulls out the underground transmission line (L) contained in the laying device (400) through the opening (411), then slides it along the inclined section (412) and places it on the support arm (220) of the support angle (200), thereby completing the laying work.

[0070] Although the present invention has been described in detail only with respect to the specific embodiments described, it is obvious to those skilled in the art that various modifications and variations can be made within the scope of the technical spirit of the invention, and such modifications and variations are naturally included in the appended claims. Explanation of the symbols

[0072] 100: Post angle 200: Support angle 210: Bracket part 220: Support arm 300: Mount 310: Curved part 311: Hanging part 320: Rotating part 321: First mounting part 330: Fastening part 331: Second mounting part 400: Laying device 410: Body 411: Opening 412: Inclined section 420: Idler 500: Hoist BN: Fastening means S: Axial member L: Underground transmission line

Claims

Claim 1 Support angles (100) are each installed on the inner side walls (W) of the power conduit (T) and arranged to face each other, and are installed at regular intervals along the front-to-back length direction of the power conduit (T); a support angle (200) is composed of a bracket part (210) that is detachably installed on the support angle (100) and a support arm part (220) that extends horizontally from the bracket part (210) toward the opposite wall (W) to support an underground transmission line (L), and is installed on each support angle (100) and arranged to face each other and is installed at regular intervals along the upper-low length direction of the support angle (100); and a support angle (200) is formed by a curved part (310) having a hook part (311) and extending horizontally from one end of the curved part (310) and arranged to face each other, and is connected to one of the support angles (200) via an axial member (S). A mounting bracket (300) comprising a rotating part (320) that is rotatably installed and has a first mounting hole (321) that penetrates vertically, and a fastening part (330) that is horizontally extended from the other end of a curved part (310) and is detachably installed via a fastening means (BN) on a support angle (200) where the rotating part (320) is installed, or rotated around an axis member (S) and is detachably installed via a fastening means (BN) on the remaining support angle (200), and has a second mounting hole (331) that penetrates vertically; and a 'C'-shaped bracket with an interior open to one side so that an underground transmission line (L) to be laid can be detachably accommodated, and is fixed by a nut (N) that is inserted into and fastened to the first and second mounting holes (321, 331) respectively via a fastening bolt (B) protruding parallel to the bottom surface, wherein the interior has an upper surface, a side surface, and a bottom surface mutually A laying mechanism (400) comprising a body (410) formed to form an orthogonal shape and having an inclined portion (412) formed to slope downward from the end of an opening (411) so that an underground power line (L) drawn out from an opening (411) can be drawn out along the inclined surface on the outer surface, and idlers (420) rotatably installed on the inner upper surface, side surface, and lower surface of the body (410) respectively to reduce friction when the underground power line (L) moves;An underground transmission line support structure that increases space utilization within a power conduit, characterized by comprising: a storage box (500) installed on the lower surface of a lower support angle (200) that is positioned adjacent to the inner bottom surface of a power conduit (T); and a hoist (600) that is stored in the storage box (500), is pulled out from the storage box (500), is detachably installed on a hook (311) of a mounting bracket (300), and lifts the underground transmission line (L) positioned on the bottom of the power conduit (T) so that it can be placed on the upper surface of the support angle (200).

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