Convenience-enhanced underground power distribution line connection device facilitating inspections

Abstract

The present invention relates to a convenience-enhanced underground power distribution line connection device facilitating inspections, the device comprising a power distribution line hold unit (100), a wire fixing stand (200), a wire support stand (300), a wire discharge unit (400), an operation switch (500), and a control unit (600). According to the present invention, underground power distribution lines (L) can be easily and conveniently connected electrically to each other and be firmly fixed, preventing sagging and disconnection in the underground power distribution lines (L) as much as possible, the work of laying out underground power distribution lines (L) can be made easy to maximize convenience, and an underground power distribution lines (L) accommodated in an installation stand (120) can be easily and conveniently pulled out to facilitate the work.

Description

Convenience-enhancing underground distribution line connection device for easy inspection

[0001] The present invention relates to an underground distribution line connection device that improves convenience and facilitates inspection work.

[0002] High-voltage electricity transmitted from power plants or substations is transformed into a certain voltage and then distributed to consumption areas. This distribution is done through overhead lines or underground lines.

[0003] In particular, the underground power line wiring method was usually done by burying underground pipes, but due to management difficulties, the method of installing underground distribution lines using power trenches is being widely used recently, and the underground distribution lines installed in power trenches are laid in trays installed in the power trenches.

[0004] A prior art technique for laying underground distribution lines using such trays is Korean Patent No. 10-1927805, which discloses a technique for easily and conveniently connecting underground distribution lines.

[0005] Meanwhile, in the past, there was a problem that when a cable tray needed to be repaired due to the underground distribution lines laid, there was no place to properly place the underground distribution lines, making the repair work very cumbersome and inconvenient.

[0006] The purpose of the present invention is to provide an underground distribution line connection device that can easily and simply electrically interconnect underground distribution lines, can firmly fix underground distribution lines so as to maximally suppress sagging and disconnection of underground distribution lines, can easily perform underground distribution line installation work so as to maximize convenience of work, and can easily and simply withdraw underground distribution lines accommodated in an installation platform so as to facilitate work and facilitate inspection work, thereby improving convenience.

[0007] The present invention to achieve the above purpose,

[0008] A mounting plate installed on the wall of a power utility, an arm that supports an underground distribution line that extends horizontally from the mounting plate and is placed on the upper surface, a mounting stand that is installed on the lower surface of the arm and has clip-joint holes that penetrate upward and downward and are formed to face each other with respect to the arm, and a support connecting part that protrudes from the side of the arm and forms a right angle with the arm and is formed to face each other with respect to the arm,

[0009] A distribution line installation unit comprising a body having a 'C' shape with an interior that is open toward the installation direction and the wall of the power tunnel so that the underground distribution line to be installed can be removably accommodated, and is integrally formed at the end of the arm, but the interior is formed such that the upper surface and the side surface are perpendicular to each other, and the inner lower surface is formed to slope upward toward the wall of the power tunnel, and the inner upper surface, lower surface, and side surface are provided with guide portions sunken with a constant width and depth, and an installation stand composed of guide rollers that are installed on the inner upper surface, side surface, and lower surface of the body respectively so as to face each other based on the guide portions and reduce friction when the underground distribution line moves;

[0010] A pipe body formed by dividing a first cover and a second cover with a semicircular cross-section and detachably connecting each other through a connecting projection and a connecting groove, and having a pressurizing projection integrally formed on the inner surface of both ends to pressurize the covering of an underground distribution line introduced inward and prevent it from coming off;

[0011] A connecting unit comprising a restraining ring fitted to both ends of a pipe body to limit the opening of the pipe body and having a clip portion that is detachably fitted into a clip portion joint hole;

[0012] A hinge plate that is interconnected to enable folding or unfolding through a support connecting portion and a pin,

[0013] A wire support consisting of a clamp installed at the lower part of the hinge plate and pressurizing and fixing an underground distribution line connected to a connection unit;

[0014] A motor that is accepted by the cancer,

[0015] A lead screw that rotates by a motor,

[0016] A wire discharge unit consisting of a push block that is accommodated in a body so that it can be guided by a guide member and pushes an underground distribution line inserted into a laying platform into a stand while reciprocating along the length of a lead screw;

[0017] An operation switch installed in a distribution line mounting unit that outputs an operation signal;

[0018] It is characterized by including a control unit that receives an operation signal from a motion switch and controls the operation of a motor so that the push block moves back and forth along a guide unit.

[0019] The present invention can easily and simply electrically interconnect underground distribution lines, firmly fix underground distribution lines, thereby maximizing the suppression of sagging and disconnection of underground distribution lines, and can easily perform the installation work of underground distribution lines, thereby maximizing the convenience of work, and can easily and simply withdraw underground distribution lines accommodated in an installation platform, thereby making work convenient.

[0020] Figure 1 is an example of application of a convenience-enhanced underground distribution line connection device for easy inspection work according to the present invention.

[0021] Figures 2 and 3 are a perspective view of the connection of an underground distribution line for easy inspection and a bottom perspective view of the convenience-enhancing device according to the present invention.

[0022] Figure 4 is an exploded perspective view of an underground distribution line connection device that facilitates inspection work according to the present invention.

[0023] Figure 5 is a partial cross-sectional view of an underground distribution line connection device that improves convenience for easy inspection according to the present invention.

[0024] Figure 6 is an exploded perspective view showing a connection unit separately extracted from a convenience-enhanced underground distribution line connection device for easy inspection according to the present invention.

[0025] Figure 7 is a block diagram showing the interrelationship between each component in a convenience-enhanced underground distribution line connection device for easy inspection according to the present invention.

[0026] Figures 8 to 12 are drawings for explaining the operation effect of an underground distribution line connection device that facilitates inspection work according to the present invention.

[0027]

[0028] [Explanation of symbols]

[0029] 100: Distribution line support unit 110: Stand 111: Mounting plate

[0030] 112: Female 113: Mounting bracket 113a: Clip joint

[0031] 114: Support connection part 120: Installation base 121: Body

[0032] 121a: Guide section 122: Guide roller 200: Connection unit

[0033] 210: Body 211: First cover 211a: Joint projection

[0034] 211b: Pressing projection 212: Second cover 212a: Joining groove

[0035] 212b: Pressing projection 220: Restraint ring 221: Clip part

[0036] 300: Wire support 310: Hinge plate 320: Clamp

[0037] 400: Push unit 410: Motor 420: Lead screw

[0038] 430: Nut block for push 500: Motion switch 600: Control unit

[0039] L: Underground distribution line

[0040] Below, a detailed explanation is given based on the attached drawings.

[0041]

[0042] FIG. 1 is an application example of an underground distribution line connection device for easy inspection and improved convenience according to the present invention, FIG. 2 and FIG. 3 are a combined perspective view and a bottom combined perspective view of an underground distribution line connection device for easy inspection and improved convenience according to the present invention, FIG. 4 is an exploded perspective view of an underground distribution line connection device for easy inspection and improved convenience according to the present invention, FIG. 5 is a partial side cross-sectional view of an underground distribution line connection device for easy inspection and improved convenience according to the present invention, FIG. 6 is an exploded perspective view showing a connection unit separately extracted from an underground distribution line connection device for easy inspection and improved convenience according to the present invention, and FIG. 7 is a block diagram showing the interrelationship between each component in an underground distribution line connection device for easy inspection and improved convenience according to the present invention.

[0043]

[0044] Referring to FIGS. 1 to 7, the underground distribution line connection device for easy inspection and improved convenience according to the present invention is composed of a distribution line mounting unit (100), a wire fixing stand (200), a wire support stand (300), a wire discharge unit (400), an operation switch (500), and a control unit (600), according to which underground distribution lines (L) can be easily and simply electrically interconnected, the underground distribution lines (L) can be firmly fixed, so that sagging and disconnection of the underground distribution lines (L) can be suppressed as much as possible, the underground distribution line (L) can be laid easily, so that the convenience of the work can be maximized, and the underground distribution line (L) accommodated in the laying stand (120) can be easily and simply pulled out, so that the work is convenient, and there is a technical feature that makes the work convenient.

[0045]

[0046] Referring to FIGS. 1 to 5, the distribution line mounting unit (100) is composed of a mounting stand (110) and an installation stand (120).

[0047] In the present embodiment, the distribution line mounting unit (100) is installed (fixed) in a cantilever shape on the wall surface of the power line (T) via a fixing means (anchor bolt) and is used for laying an underground distribution line (L) or for mounting an laid underground distribution line (L).

[0048] The above-mentioned stand (110) is composed of a mounting plate (111), an arm (112), a mounting base (113), and a support connecting part (114) and serves to support the underground distribution line (L) being mounted.

[0049] The above mounting plate (111) is a square plate, and in the present embodiment, it is placed against the wall of the power hole (T) and fixed using a fixing means (anchor bolt).

[0050] The above-mentioned rock (112) is a square tube with a space provided inside, and one end is integrally formed with a mounting plate (111), and is installed horizontally in a cantilever shape on the wall surface of a power pipe (T) via the mounting plate (111), and the other end is integrally formed with a body (121) that constitutes a mounting base (120).

[0051] For example, the arm (112) is in communication with the interior of the body (121), and a motor (410), a lead screw (420), and a push block (430) constituting a wire discharge unit (400) are accommodated within the arm (112) and the interior of the body (121).

[0052] The above mounting base (113) is installed on the lower surface of the arm (112) and serves to interconnect the arm (112) and the connection unit (200).

[0053] As shown in Fig. 3, the mounting member (113) is a member that forms an 'ㅗ' shape when viewed from the front, and clip-joint holes (113a) extending vertically through the mounting member (113) are formed to face each other based on the arm (112).

[0054] In the above clip joint (113a), a connection unit (200) is detachably fixed via a clip (221).

[0055] The above support connecting portion (114) protrudes from the side of the arm (112) and is positioned perpendicular to the arm (112), and is formed to face each other with respect to the arm (112), and a pin (P) is fitted in a vertical direction.

[0056] The above-mentioned laying platform (120) is composed of a body (121) and a guide roller (122), and in the case of the present embodiment, is integrally formed at the end of the arm (112) (opposite the fixed piece) and is used for laying underground distribution lines (L).

[0057] The above body (121) has a 'C' shape with the interior opened toward the direction of installation and the wall of the power tunnel (T) so that the underground distribution line (L) to be installed can be inserted and received in a removably manner, and the interior of the body (121) has a structure in which it is mutually connected with the interior of the arm (112) (see FIGS. 3 and 4).

[0058] The interior of this body (121) has upper and side surfaces that are perpendicular to each other, and the lower surface is formed to slope upward from one side (the lower side of the front) toward the wall of the power tunnel (T). By forming the lower surface to slope in this way, the underground distribution line (L) introduced inward slides and is placed as close as possible to the inner side surface, so that the left-right movement of the underground distribution line (L) can be suppressed as much as possible during the installation process, allowing the work to proceed stably.

[0059] In addition, a guide part (121a: see FIGS. 3 and 4) that is sunken (opened) with a certain width and depth is integrally provided on the inner upper surface, side surface, and lower surface of the body (121), and a push block (430) of a wire discharge unit (400) is installed in this guide part (121a) so that it can move back and forth.

[0060] The above guide roller (122) is a type of idler, and in the case of the present embodiment, it is installed on the inner upper surface and side and the inclined lower surface of the body (121) so that it can idle, and when moving in the direction of laying the underground distribution line (L), it rotates in place to reduce friction.

[0061] Referring to FIGS. 1 to 4 and 6, the connecting unit (200) is composed of a pipe body (210) and a restraining ring (220), and in the present embodiment, is detachably installed on a distribution line mounting unit (100) and serves to electrically interconnect underground distribution lines (L).

[0062] The above-mentioned pipe body (210) is formed by dividing into a first cover (211) and a second cover (212) and forming a pipe shape by mutual connection, and wraps and fixes an underground distribution line (L) introduced inside.

[0063] A coupling projection (211a) and a coupling groove (212a) are integrally formed on the surfaces where the first cover (211) and the second cover (212) are in contact with each other, and the first cover (211) and the second cover (212) are detachably coupled via the coupling projection (211a) and the coupling groove (212a).

[0064] A plurality of pressure protrusions (211b, 212b) protruding along the inner surface are integrally formed on the inner surfaces of both ends of the first cover (211) and the second cover (212). Here, the pressure protrusions (211b, 212b) pressurize the covering of the underground distribution line (L) arranged on the inner side when the first cover (211) and the second cover (212) are mutually connected, thereby limiting the underground distribution line (L) from being separated from the pipe body (210).

[0065] The above-mentioned restraint ring (220) is a medium that is fitted to each end of the tube body (210) to fix the first cover (211) and the second cover (212) so that they do not separate from each other, while interconnecting the mounting base (113) and the connecting unit (200). To this end, a clip portion (221) protruding in parallel and spaced apart from the outer surface of the restraint ring (220) is integrally formed, and this clip portion (221) is removably fitted into the clip portion joining hole (113a) of the mounting base (113).

[0066] Referring to FIGS. 1 to 4, the wire support (300) is composed of a hinge plate (310) and a clamp (320). In the present embodiment, it is installed so as to be foldable or unfoldable on a stand (110) and serves to pressurize and fix underground distribution lines (L) interconnected via a connection unit (200).

[0067] The above hinge plate (310) is connected to the support connecting portion (114) and the pin (P) so that it can be folded or unfolded, and serves to rotate the clamp (320) installed at the lower end.

[0068] The above clamp (320) is a ring-shaped member with an outer circumference cut to a predetermined width. In the present embodiment, it is installed at the lower end of the hinge plate (310) and serves to pressurize and fix an underground distribution line (L) that is inserted and detachably inserted through the cut inner side.

[0069] For example, when the hinge plate (310) is rotated around the pin (P), the clamp (320) is rotated together with the rotation of the hinge plate (310) and is placed adjacent to the underground distribution line (L), and when the underground distribution line (L) is inserted into the inside of the clamp (320) placed adjacent to this, the underground distribution line (L) is pressurized and fixed by the pressing force of the clamp (320).

[0070] As described above, by pressurizing and fixing the underground distribution line (L) via the wire support (300), it is possible to prevent the underground distribution lines (L) that are interconnected via the connection unit (200) from being separated from each other.

[0071] Referring to FIGS. 1, 4, 5, and 7, the wire discharge unit (400) is composed of a motor (410), a lead screw (420), and a push block (430). In the present embodiment, it is installed in the distribution line mounting unit (100) and, when installation is completed, it serves to withdraw the underground distribution line (L) from the installation stand (120).

[0072] The above motor (410) is a conventional servo motor, and in the present embodiment, it is installed in the stand (110) and its operation is controlled by the control unit (600) to rotate the lead screw (420) in the forward or reverse direction.

[0073] The above lead screw (420) is a member having threads formed on the outer surface, and in the case of the present embodiment, one end is connected to the motor (410), and the other end is rotatably installed on the installation stand (120) via a bearing (see FIG. 5).

[0074] The above push block (430) is a rectangular prism-shaped member, and in the present embodiment, is arranged to be reciprocally movable on the guide portion (121a) of the installation stand (120). This push block (430) is coupled to the lead screw (420) and moves reciprocally in a straight line along the longitudinal direction of the lead screw (420) by the rotation of the lead screw (420). In this way, in the process of the push block (430) moving toward the stand (110), the underground distribution line (L) installed in the installation stand (120) is pushed to the stand (110) by the push block (430) and pulled outward.

[0075] For example, the motor (410) is operated by the control unit (600) to rotate clockwise at a set rotation speed, and when the set rotation speed is reached, it rotates counterclockwise at a set rotation speed and then stops, and accordingly, the push block (430) performs a linear reciprocating motion once in the forward and backward direction along the longitudinal direction of the lead screw (420).

[0076] Referring to FIGS. 1 to 5 and 7, the operation switch (500) is installed on the front of the installation stand (120) of the distribution line mounting unit (100) and serves to output an operation signal.

[0077] For example, when a worker presses the operation switch (500), an operation signal is output and input to the control unit (600).

[0078] Referring to Fig. 7, the control unit (600) receives an operation signal from the operation switch (500) and controls the operation of the motor (410).

[0079] For example, when an operation signal is input from the operation switch (500), the control unit (600) controls the operation of the motor (410). The motor (410) is operated by the control unit (600) to rotate clockwise by a set number of rotations, and when the set number of rotations is reached, it rotates counterclockwise by the set number of rotations and then stops. Accordingly, the push block (430) performs one linear reciprocating motion in the forward and backward direction along the longitudinal direction of the lead screw (420).

[0080]

[0081] Figures 8 to 12 are drawings for explaining the operation and effect of the underground distribution line connection device for easy inspection according to the present invention, and the following description is made with reference to these drawings.

[0082] The worker inserts the underground distribution line (L) to be installed into the inside of the body (121) of the installation platform (120) and places it on the guide roller (122).

[0083] And when the tip of the inserted underground distribution line (L) is grabbed and pulled, the underground distribution line (L) moves, and the guide roller (122) rolls in place, reducing friction with the underground distribution line (L).

[0084] In particular, since the lower surface inside the body (121) is formed to be inclined, the underground distribution line (L) slides along the inclined guide roller (122) and is positioned as close as possible to the guide roller (122) positioned on the inner side, and accordingly, the left-right movement of the underground distribution line (L) can be suppressed as much as possible during the laying process, so that the laying work can be carried out stably.

[0085] And when the worker presses the operation switch (500) while the underground distribution line (L) is laid to the planned section, an operation signal is output and input to the control unit (600), and the control unit (600) receives the operation signal from the operation switch (500) and controls the operation of the motor (410).

[0086] The above motor (410) is controlled by the control unit (600) to rotate clockwise at a set rotation speed, and during this process, the lead screw (420) also rotates, and due to the rotation of the lead screw (420), the push block (430) moves toward the wall of the power hole (T), and during this process, the underground distribution line (L) accommodated in the body (121) is pulled out from the body (121) and placed in the arm (112).

[0087] And when the motor (410) rotates clockwise and reaches the set rotation speed, the control unit (600) controls the operation so that the motor (410) rotates counterclockwise, and during this process, the lead screw (420) also rotates, and due to the rotation of the lead screw (420), the push block (430) moves and returns to the initial state.

[0088] Meanwhile, if a part of the assumed underground distribution line (L) is damaged, only the damaged part can be removed and electrically interconnected via the connection unit (200). To explain this in more detail, first, the underground distribution line (L) with the covering removed is introduced into the first cover (211) and the metal wires are placed against each other.

[0089] Next, the first cover (211) and the second cover (212) are mutually connected via the connecting projection (211a) and the connecting groove (212a) so that the underground distribution line (L) is wrapped by the first cover (211) and the second cover (212).

[0090] At this time, the pressure projections (211b, 212b) of the first cover (211) and the second cover (212) strongly press the covering of the underground distribution line (L), and accordingly, the underground distribution line (L) is restricted from being separated from the pipe body (210).

[0091] After the first cover (211) and the second cover (212) are mutually connected as described above, a restraining ring (220) is inserted into both ends of the body (210) to prevent the first cover (211) and the second cover (212) from being separated from each other, and then the clip portion (221) of the restraining ring (220) is inserted into the clip portion connecting hole (113a) of the mounting member (113) constituting the distribution line mounting unit (100) to fix the connection unit (200).

[0092] And when the connection work of the underground distribution line (L) is completed via the above-mentioned connection unit (200), the worker rotates the hinge plate (310) of the wire support (300) around the pin (P) so that it is placed adjacent to the underground distribution line (L), and then pressurizes and fixes the underground distribution line (L) via the clamp (320).

[0093]

[0094] Although the present invention has been described in detail only with respect to the described specific embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made within the technical scope of the present invention, and it will be apparent that such modifications and variations fall within the scope of the appended claims.

Claims

1. A stand (110) comprising a mounting plate (111) installed on the wall of a power utility (T), an arm (112) supporting an underground distribution line (L) that extends horizontally from the mounting plate (111) and is placed on the upper surface, a mounting base (113) installed on the lower surface of the arm (112) and having a clip-joining hole (113a) that penetrates vertically and is formed to face each other with respect to the arm (112), and a support connecting part (114) that protrudes from the side of the arm (112) and is formed to face each other with respect to the arm (112) at right angles to the arm (112), A distribution line mounting unit (100) comprising: a body (121) having a 'C' shape with an interior opened toward the installation direction and the wall surface of a power tunnel (T) so that an underground distribution line (L) to be installed can be removably accommodated, and which is integrally formed at the end of a female member (112), wherein the interior is formed such that the upper surface and the side surface are perpendicular to each other, and the inner lower surface is formed to be inclined upward toward the wall surface of the power tunnel (T), and which has a guide portion (121a) sunken with a constant width and depth on the inner upper surface, lower surface, and side surface; and a guide roller (122) which is installed on the inner upper surface, side surface, and lower surface of the body (121) so as to face each other with respect to the guide portion (121a) and reduces friction when the underground distribution line (L) moves; A pipe body (210) formed by dividing into a first cover (211) and a second cover (212) having a semicircular cross-section and detachably coupled to each other through a coupling protrusion (211a) and a coupling groove (212a), and having a pressurizing protrusion (211b, 212b) integrally formed on the inner surface of both ends to pressurize the covering of an underground distribution line (L) introduced inward and prevent it from coming off; A connecting unit (200) comprising a restraining ring (220) fitted to both ends of the pipe body (210) to limit the opening of the pipe body (210) and having a clip portion (221) that is detachably fitted into a clip portion joint hole (113a); A hinge plate (310) that is interconnected to enable folding or unfolding through a support connecting portion (114) and a pin (P), A wire support (300) composed of a clamp (320) installed at the lower end of a hinge plate (310) and pressurizing and fixing an underground distribution line (L) connected to a connection unit (200); A motor (410) accommodated in the arm (112), A lead screw (420) rotated by a motor (410), A wire discharge unit (400) composed of a push block (430) that is accommodated in a body (210) so that it can be guided by a guide member (121a) and pushes an underground distribution line (L) inserted into a laying platform (120) to a stand (110) while reciprocating along the length of a lead screw (420); An operation switch (500) installed in a distribution line mounting unit (100) and outputting an operation signal; A convenient underground distribution line connection device for easy inspection, characterized by including a control unit (600) that receives an operation signal from an operation switch (500) and controls the operation of a motor (410) so that a push block (430) moves back and forth along a guide unit (121a).

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