Underground power transmission line connection device allowing easier and more convenient connections

Abstract

The present invention relates to an underground power transmission line connection device allowing easier and more convenient connections, the connection device comprising a support mechanism (10), a connector mechanism (80), first and second clamp mechanisms (90, 90'), an inclined roller (20), a vertical roller (30), a horizontal roller (40), a wire-pushing mechanism (50), a movement sensor (60), and a harmful animal-repelling device (70). The connection device allows convenient connection of underground power transmission lines (L) and safe laying-out of same, prevents electrical shorts from occurring by blocking access by harmful animals, and allows an underground power transmission line (L) inserted and pulled between the inclined roller (20), vertical roller (30), and horizontal roller (40) to be placed on the upper surface of a wire support part (12) conveniently and without difficulty.

Description

Convenience-enhancing underground transmission line connection device for easy connection

[0001] The present invention relates to a convenient underground transmission line connection device for improved connection.

[0002] In general, electricity used in each home, office, and large-scale factory is supplied through substations installed in each region. These substations are installed for the purpose of voltage or current transformation and power distribution, and transmit the electricity produced at power plants to consumers through transmission lines.

[0003] At this time, the transmission methods include overhead transmission and underground transmission, and recently, underground transmission is being widely used for urban aesthetics and safety.

[0004] In this underground transmission method, as shown in Fig. 1, an underground transmission line (1) is installed inside a power pipe (3) via a wire tray (2).

[0005] However, in the past, there was a problem of electric leakage occurring due to harmful animals approaching the wire tray (2) and damaging the underground transmission line (1).

[0006] In addition, in the past, when placing an underground transmission line (1) on a wire tray (2), it was difficult to safely move the underground transmission line (1) to the wire tray (2) and conveniently place the underground transmission line (1) on the upper surface of the wire tray (2).

[0007] In addition, in the past, when the underground transmission line was lengthened or the route of the underground transmission line had to be changed, it was difficult to ensure that the underground transmission line was safely laid.

[0008] The present invention was invented to solve the above-mentioned problem, and the problem is to provide an underground transmission line connection device that can safely install underground transmission lines while conveniently connecting underground transmission lines (L), prevent the occurrence of electric leakage by blocking the access of harmful animals, and conveniently place an underground transmission line (L) inserted and pulled between an inclined roller (20), a vertical roller (30), and a horizontal roller (40) on the upper surface of a wire support member (12) without effort.

[0009] The present invention, in order to solve the above problems,

[0010] A fixed part (11) arranged vertically and installed on a power grid wall (W); A wire support part (12) having a sliding groove (12a) formed left and right 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 downwards 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;

[0011] A connector mechanism (80) having an insertion part (81a) that can be inserted left and right into a sliding home (12a), and a fixing part (81b) provided on the upper part of the insertion part (81a) and having a front end protruding forward from the front of the wire support part (12) and a rear end protruding backward from the rear of the wire support part (12), and a sliding base (81) that can be positionally fixed at a certain position of the wire support part (11); a connector (82) provided on the upper part of the insertion part (81a) and to which an underground transmission line (L) is connected;

[0012] The first and second clamping mechanisms (90, 90') are installed at the front and rear ends of the mounting portion (81b), respectively, and fix the underground transmission line (L) mounted on the mounting portion (81b), respectively;

[0013] 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;

[0014] 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;

[0015] 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;

[0016] 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) for pushing an underground transmission 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) moving along the rightward movement of the movable body (52);

[0017] A motion detection sensor (60) installed in a fixed part (11) and outputting a moving object detection signal when detecting a moving object moving around a wire support part (12);

[0018] A pest control device (70) comprising: a resonance plate (71) having a resonance plate recessed portion (71a) formed on the upper surface and installed on the right end of a horizontal roller installation portion (16); a rotary drive device (72a) installed on the upper surface of the horizontal roller installation portion (16) and positioned on the left side of the resonance plate (71) and driven when a moving object detection signal is received from a motion detection sensor (60); a rotary table (72b) connected to the rotary table (72a) and rotated clockwise or counterclockwise around the X-axis by the rotary table (72a); and a contact mechanism (72) having a cylindrical contact body (72c) having a contact body recessed portion (72c1) formed on the circumferential surface and connected to the right end of the rotary table (72b); and generating a frictional sound when the contact body (72c) rotates;

[0019] It is characterized by including.

[0020] The present invention, which is a means for solving the above-described problem, includes a support mechanism (10), a connector mechanism (80), first and second clamp mechanisms (90, 90'), an inclined roller (20), a vertical roller (30), a horizontal roller (40), a wire pushing mechanism (50), a motion detection sensor (60), and a pest repellent device (70), so as to safely install an underground transmission line (L) while conveniently connecting the underground transmission lines (L), prevent the occurrence of a current leak by blocking the access of pests, and conveniently position the underground transmission line (L) inserted and pulled between the inclined roller (20), the vertical roller (30), and the horizontal roller (40) on the upper surface of the wire support member (12) without effort.

[0021] Figure 1 is a drawing for explaining the prior art,

[0022] Figure 2 is a partial cross-sectional view for explaining the present invention,

[0023] Figure 3 is a drawing showing a part of Figure 2,

[0024] Figure 4 is a plan view showing a wire support portion of the present invention.

[0025] Fig. 5 is a cross-sectional perspective view showing the support mechanism and wire pushing mechanism along the line X-X' of Fig. 3 of the present invention.

[0026] Fig. 6 is a cross-sectional perspective view showing the wire support and sliding member along the Y-Y' line of Fig. 4.

[0027] Figures 7 to 9 are operational diagrams for explaining the operation of the present invention.

[0028]

[0029] - Explanation of symbols -

[0030] 10: Support mechanism 20: Inclined roller

[0031] 30: Vertical roller 40: Horizontal roller

[0032] 50: Wire pushing mechanism 60: Motion detection sensor

[0033] 70: Pest control device 80: Connector device

[0034] 90,90': 1st and 2nd clamping mechanism 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, FIG. 4 is a plan view showing a wire support part of the present invention, FIG. 5 is a cross-sectional perspective view showing a support mechanism and a wire pushing mechanism along the line XX' of FIG. 3 of the present invention, and FIG. 6 is a cross-sectional perspective view showing a wire support part and a sliding base along the line Y-Y' of FIG. 4. The configuration of the present invention will be described as follows with reference to FIGS. 2 to 6. Meanwhile, in this embodiment, the directionality of the configuration of this embodiment is described with the XYZ coordinates on FIG. 5, and the X-axis direction on FIG. 5 is left-right (left-right direction), the Y-axis direction on FIG. 5 is front-rear (front-rear direction), and the Z-axis direction on FIG. 5 is up-down (up-down direction). In addition, the direction of each configuration in this embodiment is one example, and the direction of each configuration may be interpreted differently depending on how the standard is set.

[0038] The underground transmission line connection device for convenient connection according to the present invention includes a support mechanism (10), a connector mechanism (80), first and second clamp mechanisms (90, 90'), an inclined roller (20), a vertical roller (30), a horizontal roller (40), a wire pushing mechanism (50), a motion detection sensor (60), and a pest repellent device (70).

[0039] The above support mechanism (10), as shown in FIGS. 2 to 5, 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 sliding groove (12a) formed left and right, and is installed on the fixing member (11) and horizontally arranged left and right. In the present embodiment, the sliding groove (12a) has a cross-section in the shape of the letter 'ㅗ'. In addition, the wire support member (12) in the present embodiment has a screw groove (12b) that is opened upward and communicates with the sliding groove (12a), and a plurality of screw grooves are provided left and right. Meanwhile, in the present embodiment, the wire support member (12) has an overall square bar shape, and a plurality of underground transmission 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 connector mechanism (80) has a sliding member (81) and a connector (82), as shown in FIG. 2, FIG. 4, and FIG. 6.

[0049] The above sliding member (81) has an insertion portion (81a), a first fixing portion (81b), and a second fixing portion (81b).

[0050] The above insertion portion (81a) is inserted into the sliding groove (12a) so as to be movable left and right. In the present embodiment, the insertion portion (81a) has a fastening hole (81a1) that is opened upward and downward and communicates with the screw groove (12b). Meanwhile, in the present embodiment, the insertion portion (81a) forms an 'ㅗ' shape.

[0051] The above-mentioned fixing portion (81b) is provided on the upper end of the insertion portion (81a), and the front end is provided to protrude forward from the front surface of the wire support portion (12), and the rear end is provided to protrude backward from the rear surface of the wire support portion (12).

[0052] This sliding member (81) can be fixed in position at a certain position of the wire support member (11). In this embodiment, a fastening member (83) is provided that is inserted into the fastening hole (81a1) of the insertion part (81a) and is thread-fastened to the screw groove (12b) of the wire support member (12).

[0053] The above connector (82) is provided on the upper portion of the insertion portion (81a), and an underground transmission line (L) is connected. In this embodiment, an underground transmission line (L) is detachably connected to the front and rear ends of the connector (82), and each underground transmission line (L) connected to the connector (82) is electrically connected via the connector (82).

[0054]

[0055] The first and second clamping mechanisms (90, 90') are installed at the front and rear ends of the mounting portion (81b), respectively, as illustrated in Fig. 4, to fix the underground transmission line (L) fixed to the mounting portion (81b). In the present embodiment, a cable tie (reusable cable tie) may be applied to the first and second clamping mechanisms (90, 90'), and various conventional fixing mechanisms may be applied as long as the underground transmission line (L) can be removably fixed to the mounting portion (81b).

[0056] The above-mentioned inclined roller (20) has a rotational axis (21) and a rotational body (22), as shown in FIGS. 2 and 3.

[0057] 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.

[0058] 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).

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] The above cylinder (51) has a movable body support member (15) installed on the left side.

[0064] 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.

[0065] 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.

[0066] 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).

[0067] This wire pushing mechanism (50) pushes the underground transmission 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.

[0068] The above motion detection sensor (60), as illustrated in Fig. 2, is installed on the fixed part (11) and outputs a motion detection signal when it detects a moving object moving around the wire support part (12). In the present embodiment, the motion detection sensor (60) may be an ultrasonic sensor. Meanwhile, the moving object may be a harmful animal such as a rat.

[0069] The above pest control device (70) has a sound plate (71) and a contact mechanism (72), as shown in FIGS. 2 and 3.

[0070] The above-mentioned sounding board (71) has a sounding board recessed portion (71a) formed on the upper surface and is installed on the right end of the horizontal roller installation portion (16). In this embodiment, the sounding board (71) has an 'ㄱ' shape.

[0071] The above contact mechanism (72) is equipped with a rotary drive device (72a), a rotary table (72b), and a contact body (72c).

[0072] The above rotary drive device (72a) is installed on the upper surface of the horizontal roller installation part (16) and is located on the left side of the sound plate (71), and is driven when a moving object detection signal is received from the motion detection sensor (60). In the present embodiment, the rotary drive device (72a) may be a motor.

[0073] The above rotary table (72b) is connected to a rotary drive device (72a) and rotates clockwise or counterclockwise around the X-axis by the rotary drive device (72a). In this embodiment, the rotary table (72b) has a bar shape.

[0074] The above contact body (72c) has a contact body protrusion (72c1) formed on the circumference and is connected to the right end of the rotary table (72b). In this embodiment, the contact body (72c) has a cylindrical shape.

[0075] In this pest control device (70), when the contact body (72c) rotates, the contact body protrusions (72c1) and the sound plate protrusions (71a) come into contact, generating a frictional sound.

[0076] Meanwhile, in the present invention, a plurality of underground transmission line connection 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.

[0077]

[0078] Figures 7 to 9 are diagrams for explaining the operation of the present invention. The operation of the present invention will be explained with reference to Figures 7 to 9 as follows.

[0079] In a state such as Fig. 2, when the path of the underground transmission line is changed or the underground transmission line is long and it is necessary to connect the underground transmission lines in the middle, the position of the connector device (80) can be changed as in Fig. 7 according to the path of the underground transmission line.

[0080] At this time, the present invention safely supports and fixes the underground transmission line (L) connected to the connector (82) by the first and second clamping mechanisms (90, 90') while the underground transmission line (L) is safely fixed to the anchoring portion (81b).

[0081] In addition, when a harmful animal (e.g., a rat) approaches the area around the underground transmission line (L) in a state where the present invention is installed as shown in FIG. 2, the movement detection sensor (60) detects this as shown in FIG. 8 and outputs a moving object detection signal to the rotary drive device (72a).

[0082] Then, the rotary drive device (72a) operates to rotate the rotary table (72b), and the contact body projection (72c1) of the contact body (72c) comes into contact with the resonance plate projection (71a) of the resonance plate (71), generating vibration and frictional sound.

[0083] When the above friction sound (warning sound) spreads to the surrounding area, it can prevent harmful animals from approaching the underground transmission line (L).

[0084] Meanwhile, the installation work of the underground transmission line (L) in the present invention is as follows.

[0085] First, the underground transmission line (L) is inserted into the inclined roller (20), vertical roller (30), and horizontal roller (40), and the underground transmission line (L) is pulled and moved to the desired position.

[0086] At this time, since the inclined roller (20) is inclined, when the underground transmission line (L) is pulled and moves forward and backward, the underground transmission line (L) moves stably without being separated from between the vertical roller (30), the horizontal roller (40), and the inclined roller (20).

[0087] However, in this case, after pulling the underground transmission line (L) to the desired position, when moving the underground transmission 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 transmission line (L) to the wire support member (12).

[0088] However, in the case of the present invention, after the underground transmission line (L) is pulled to the desired position, when the worker operates the operating switch (54) to drive the cylinder (51), the moving body (52) moves to the right as shown in Fig. 9(a) so that the pusher (53) comes into contact with the underground transmission line (L).

[0089] At this time, the pusher (53) moves while pushing the underground transmission line (L) to the right, and the underground transmission line (L) moves upward to the right as shown in Fig. 9(b) and passes over the inclined roller (20) and is settled on the wire support member (12) as shown in Fig. 9(c).

[0090] Afterwards, the worker can easily move the underground transmission line (L) to the right and place the underground transmission line (L) on the wire support member (12).

[0091]

[0092] As described above, the present invention has the effect of enabling convenient and safe connection between underground transmission lines (L).

[0093] In addition, the present invention detects the approach of a harmful animal to an underground transmission line (L) when the harmful animal approaches the underground transmission line (L) and generates an alarm sound around the underground transmission line (L), thereby preventing the harmful animal from approaching the underground transmission line (L). Therefore, the present invention has the effect of preventing damage to the underground transmission line (L) by harmful animals, thereby preventing a current leakage from occurring in the underground transmission line (L).

[0094] In addition, the present invention has the effect of allowing the underground transmission line (L) to easily pass over the inclined roller (20) by the wire pushing mechanism (50) when installing an underground transmission line (L) by inserting the underground transmission line (L) between the inclined roller (20), the vertical roller (30), and the horizontal roller (40) and then pulling the underground transmission line (L), thereby conveniently moving the underground transmission 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 an underground transmission line (L).

[0095] In addition, the present invention has the effect of making it convenient to pull the underground transmission line (L) by inserting the underground transmission 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 transmission line (L) does not occur when the underground transmission line (L) is pulled.

[0096]

[0097] Meanwhile, the present invention is defined as an 'underground transmission line connection device with improved convenience for easy connection' in that it has a structure for underground transmission, such as a structure for preventing leakage current in a structure for connecting underground transmission lines (L), and the subject matter of the present invention is defined as an 'underground transmission line connection device'.

Claims

1. A fixed part (11) arranged vertically and installed on a power grid wall (W); A wire support part (12) provided with a sliding groove (12a) formed left and right 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 downwards 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) provided with 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 connector mechanism (80) comprising an insertion part (81a) that can be inserted left and right into a sliding home (12a), a fixation part (81b) provided on the upper end of the insertion part (81a) and having a front end protruding forward from the front of the wire support part (12) and a rear end protruding backward from the rear of the wire support part (12), a sliding base (81) that can be positionally fixed at a certain position of the wire support part (11); a connector (82) provided on the upper end of the insertion part (81a) and to which an underground transmission line (L) is connected; The first and second clamping mechanisms (90, 90') are installed at the front and rear ends of the mounting portion (81b), respectively, and fix the underground transmission line (L) mounted on the mounting portion (81b), respectively; 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) for pushing an underground transmission 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) moving along the rightward movement of the movable body (52); A motion detection sensor (60) installed in a fixed part (11) and outputting a moving object detection signal when detecting a moving object moving around a wire support part (12); A pest control device (70) comprising: a resonance plate (71) having a resonance plate recessed portion (71a) formed on the upper surface and installed on the right end of a horizontal roller installation portion (16); a rotary drive device (72a) installed on the upper surface of the horizontal roller installation portion (16) and positioned on the left side of the resonance plate (71) and driven when a moving object detection signal is received from a motion detection sensor (60); a rotary table (72b) connected to the rotary table (72a) and rotated clockwise or counterclockwise around the X-axis by the rotary table (72a); and a contact mechanism (72) having a cylindrical contact body (72c) having a contact body recessed portion (72c1) formed on the circumferential surface and connected to the right end of the rotary table (72b); and generating a frictional sound when the contact body (72c) rotates; An underground transmission line connection device characterized by including a .

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