A high-voltage signal trial sending device for a distribution line

Abstract

The present invention belongs to the technical field of power equipment, and specifically relates to a high-voltage signal trial transmission device for distribution lines, including a trial transmission controller; a winding box is fixedly connected to the outer wall of the trial transmission controller; two winding rollers are respectively rotatably connected to the inside of the winding box through two torsion springs; by setting the two winding rollers to cooperate with the torsion springs to synchronously wind and roll up the ground wire and the signal output line in the winding box, it is convenient to quickly and portably transfer at multiple fault points. By using the pressing plate to press against the outer wall of the cable, as the cable is pulled out, it can assist in limiting the retraction of the cable while monitoring the remaining amount of the cable pulled out. Relying on the wide plate of the connecting rod to press the pressure sensor to trigger an alarm, it plays a role in warning that the remaining amount of the cable pulled out is too short. By inserting the battery pack into the power supply box and fixing it with the blocking plate, it plays a role in making the high-voltage signal trial transmission device for distribution lines convenient for power connection.

Description

Technical Field

[0001] The present invention belongs to the technical field of power equipment, and specifically relates to a high-voltage signal trial transmission device for distribution lines. Background Art

[0002] The distribution line is also called a high-voltage distribution line. The distribution line refers to the line that delivers power from a step-down substation to a distribution transformer or delivers the power of a distribution substation to a power consumption unit. After a distribution line fails, a high-voltage signal DC trial transmission instrument is used to conduct trial transmission detection section by section.

[0003] A patent application with the publication number CN108931708A discloses a high-voltage DC trial transmission instrument, which includes a box body. The box body is rectangular. A detection device is installed in the inner cavity of the box body. An output line is connected to the detection device. A movable cover is rotatably connected to the side wall of the box body. The above-mentioned high-voltage DC trial transmission instrument can reasonably wind the output line, which is convenient for staff to take and store the output line.

[0004] The above-mentioned high-voltage signal trial transmission device mainly improves the detection efficiency of the high-voltage DC trial transmission instrument by sorting and winding the output line. However, when conducting trial transmission detection on multiple distribution line faults, it is necessary to connect and use the grounding wire and the signal output line separately. It is difficult for the above-mentioned high-voltage signal trial transmission device to quickly carry two cables for portable travel, resulting in a long time for trial transmission detection at each fault point.

[0005] Therefore, the present invention provides a high-voltage signal trial transmission device for distribution lines. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A high-voltage signal trial transmission device for distribution lines of the present invention includes a trial transmission controller; a winding box is fixedly connected to the outer wall of the trial transmission controller; two winding rollers are rotatably connected to the inside of the winding box through two torsion springs respectively; cables are fixedly connected to the outer walls of the two winding rollers; a connection head is fixedly connected to one end of the cable away from the winding roller.

[0008] Preferably, a pressing plate is slidably connected to the inner wall of the winding box near the winding roller; one end of the pressing plate away from the winding roller is fixedly connected to a connecting rod, and the connecting rod is composed of a wide plate and a round rod, and the round rod is fixedly connected to the pressing plate; a first elastic member is sleeved on the outer wall of the round rod of the connecting rod, and the first elastic member is fixedly connected between the wide plate of the connecting rod and the outer wall of the winding box.

[0009] Preferably, a pressure sensor is fixedly connected to the outer wall of the winding box near the connecting rod, and the pressure sensor is electrically connected to the trial feeding controller; the wide plate of the connecting rod pulled by the elastic force of the first elastic member can squeeze and trigger the pressure sensor.

[0010] Preferably, a power supply box is fixedly connected to the outer wall of the trial feeding controller on the side away from the winding box; a battery pack is installed inside the power supply box, and a sealing plate is installed near the battery pack inside the power supply box.

[0011] Preferably, a first fixing bracket is fixedly connected to the end of the power supply box; a limiting plate is installed on the inner wall of the first fixing bracket through a second elastic member; an extrusion assembly is arranged at the end of the power supply box, and the extrusion assembly is used to squeeze the limiting plate to slide down to clamp and limit the sealing plate.

[0012] Preferably, the extrusion assembly includes a second fixing bracket, a rotating roller, a connecting plate and a bolt; the second fixing bracket is fixedly connected to the end of the power supply box, and the second fixing bracket is arranged opposite to the first fixing bracket; the rotating roller is rotatably connected to the inner wall of the second fixing bracket; the connecting plate is fixedly connected to the outer wall of the rotating roller; the bolt is threadedly connected to the first fixing bracket, and the bolt penetrates through the first fixing bracket and the connecting plate at the same time.

[0013] Preferably, a connecting frame is fixedly connected to the end of the winding box; guide plates are fixedly connected to one side of both ends of the outer wall of the connecting frame, and a circular ring is fixedly connected to one end of the guide plate.

[0014] Preferably, a hole plate is slidably connected to the inner wall of the connecting plate, and a plurality of through holes corresponding to the bolts are formed in the outer wall of the hole plate; a guide ring is fixedly connected to one end of the hole plate away from the connecting plate.

[0015] Preferably, two fixing plates are fixedly connected to the outer wall of the trial feeding controller; a rotating shaft is rotatably connected to the inner walls of the two fixing plates; an upper cover plate is fixedly connected to the outside of the rotating shaft.

[0016] Preferably, threaded rods are threadedly connected to the four corners of the bottom end of the trial feeding controller; bases are fixedly connected to the bottom ends of the four threaded rods.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A high-voltage signal trial transmission device for a distribution line according to the present invention. By means of two winding rollers provided and cooperating with torsion springs, the grounding wire and the signal output wire are synchronously wound and collected in a winding box, which is convenient for quickly and portably transferring at multiple fault points. The extruding plate is used to extrude the outer wall of the cable. As the cable is pulled out, it can assist in limiting the retraction of the cable while monitoring the remaining amount of the cable pulled out. The wide plate of the connecting rod is relied on to extrude the pressure sensor to trigger an alarm, playing a role in warning when the remaining amount of the cable pulled out is too short. The battery pack is inserted into the power supply box and fixed by the blocking plate, playing a role in making the high-voltage signal trial transmission device for the distribution line power-connected and portable. The limiting plate slides down and is clamped inside the power supply box to limit the blocking plate, playing a role in fixing and limiting the battery pack.

[0019] 2. A high-voltage signal trial transmission device for a distribution line according to the present invention. The connecting plate provided rotates with the rotating roller to press and limit the sliding of the limiting plate and then fix it, playing a role in squeezing and limiting the limiting plate. The connecting frame cooperates with the connecting plate to connect multiple straps, playing a role in carrying the high-voltage signal trial transmission device for the distribution line to move portably at multiple fault points. The guiding plate cooperates with the guiding ring that rises as the cable is pulled out to guide the cable that is pulled out too long, reducing the situation that the cable pulled out too long falls off the faulty line and is dragged and worn. The upper cover plate is relied on to cover the trial transmission controller to block it, playing a role in protecting the control parts of the trial transmission controller. Four threaded rods are freely adjusted and fixed at the bottom end of the trial transmission controller to support, improving the stability of the high-voltage signal trial transmission device for the distribution line during use. At the same time, when moving between short-distance fault points, the cable pulled out can be temporarily wound around the four threaded rods, which is convenient for short-distance portable transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a partial structural cross-sectional view of the winding box in the present invention;

[0023] Figure 3 is a schematic structural diagram of the pressure sensor in the present invention;

[0024] Figure 4 is a schematic structural diagram of the limiting plate in the present invention;

[0025] Figure 5 is a schematic structural diagram of the hole plate in the present invention.

[0026] In the figure: 1. Trial transmission controller; 11. Rewinding box; 12. Rewinding roller; 13. Cable; 14. Connector; 2. Extrusion plate; 21. Connecting rod; 22. First elastic member; 3. Pressure sensor; 4. Power supply box; 41. Sealing plate; 5. First fixing bracket; 51. Limiting plate; 6. Second fixing bracket; 61. Rotating roller; 62. Connecting plate; 63. Bolt; 7. Connecting frame; 71. Guide plate; 8. Orifice plate; 81. Guide ring; 9. Fixing plate; 91. Rotating shaft; 92. Upper cover plate; 93. Threaded rod; 94. Base. Detailed implementation manner

[0027] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0028] As Figures 1 to 3 shown, a high-voltage signal trial transmission device for a distribution line according to an embodiment of the present invention includes a trial transmission controller 1; a rewinding box 11 is fixedly connected to the outer wall of the trial transmission controller 1; two rewinding rollers 12 are respectively rotatably connected to the inside of the rewinding box 11 through two torsion springs; cables 13 are fixedly connected to the outer walls of the two rewinding rollers 12; one end of the cable 13 away from the rewinding roller 12 is fixedly connected with a connector 14; when testing the trial transmission of multiple distribution line faults, it is necessary to connect and use the grounding wire and the signal output line respectively. First, place the trial transmission controller 1 stably at the distribution line fault point. There are two cables 13 wound in the rewinding box 11. The two cables 13 with different functions are respectively wound around the two rewinding rollers 12 through torsion springs. The two cables 13 are respectively the grounding wire and the signal output line. Connect the two connectors 14 to clips respectively, and pull out the two cables 13 at the same time. The grounding wire is connected to the actual ground, and the high-voltage signal output line is connected to the line to be detected. After the trial transmission controller 1 is externally connected to a portable mobile power supply, start the test. Open the switch of the high-voltage signal trial transmission device for the distribution line, and observe whether the voltage knob is at the zero position. The zero-position green light is on. Observe the grounding status prompted on the trial transmission controller 1, and then slowly rotate the voltage knob to adjust. When the voltage rises to the time setting value, the trial transmission controller 1 will prompt grounding, and the fault light will flash and the trial transmission instrument will disconnect, indicating that there is a fault grounding in the line. Just turn the voltage knob to zero and cut off the power. Remove the two clips, and the elastic force of the torsion spring resets to drive the rewinding rollers 12 to rotate. The two rewinding rollers 12 synchronously wind up the two cables 13 and wind the two cables 13 in the rewinding box 11. Pick up the trial transmission controller 1 and you can go to the next fault point for trial transmission portably, improving the efficiency of the high-voltage signal trial transmission test for the distribution line.

[0029] A pressing plate 2 is slidably connected to the inner wall of the take-up box 11 near the take-up roller 12; one end of the pressing plate 2 away from the take-up roller 12 is fixedly connected with a connecting rod 21, and the connecting rod 21 is composed of a wide plate and a round rod, and the round rod is fixedly connected to the pressing plate 2; an elastic member 22 is sleeved on the outer wall of the round rod of the connecting rod 21, and the elastic member 22 is fixedly connected between the wide plate of the connecting rod 21 and the outer wall of the take-up box 11; when the cable 13 is pulled out from the take-up box 11 for use, the elastic force of the elastic member 22 pulls the wide plate of the connecting rod 21, so that the round rod slides into the interior of the take-up box 11, and the pressing plate 2 presses on the outer wall of the remaining cable 13 in the take-up box 11, assisting to prevent the cable 13 from being pulled and wound by the take-up roller 12 connected by a torsion spring. As the cable 13 is wound inside the take-up box 11 after use, the coil of the cable 13 becomes larger and larger, which can push out the connecting rod 21 connected to one end of the pressing plate 2. At the same time, during the process of the connecting rod 21 sliding into the interior of the take-up box 11, the remaining length of the round rod of the take-up roller 12 exposed outside the take-up box 11 can be observed to judge the length of the remaining cable 13 in the take-up box 11, reducing the situation of the cable 13 being damaged by pulling.

[0030] A pressure sensor 3 is fixedly connected to the outer wall of the take-up box 11 near the connecting rod 21, and the pressure sensor 3 is electrically connected to the trial sending controller 1; the elastic force of the elastic member 22 pulling the wide plate of the connecting rod 21 can squeeze and trigger the pressure sensor 3; when the cable 13 is pulled for use, as the end of the cable 13 connected to the connector 14 is continuously pulled away, the elastic member 22 pulls the round rod of the connecting rod 21 to slide into the interior of the take-up box 11 until the wide plate of the connecting rod 21 presses on the pressure sensor 3, and the pressure sensor 3 sends a signal to the trial sending controller 1. The trial sending controller 1 issues an alarm that the cable 13 is about to be completely pulled out, and the position of the trial sending controller 1 needs to be adjusted, playing a role in warning that the cable 13 is too short and needs to be adjusted.

[0031] As Figure 1 、 Figures 3 to 5 shown, a power supply box 4 is fixedly connected to the outer wall of the trial sending controller 1 on the side away from the take-up box 11; a battery pack is installed inside the power supply box 4, and a sealing plate 41 is installed near the battery pack inside the power supply box 4; when connecting the power supply to the trial sending controller 1, it is usually rather cumbersome to connect an external portable mobile power supply, and the portable mobile power supply is not easy to carry. The power supply box 4 is fixed on one side of the trial sending controller 1, the battery pack is inserted into the interior of the power supply box 4, and the sealing plate 41 is used to fix the battery pack inside the power supply box 4 for power supply. When the battery pack runs out of power, the sealing plate 41 is removed to replace the battery pack, playing a role in making the power connection of the high-voltage signal trial sending device of the power distribution line portable.

[0032] One end of the power supply box 4 is fixedly connected with a first fixing bracket 5; a limiting plate 51 is installed on the inner wall of the first fixing bracket 5 through a second elastic member; an extrusion assembly is arranged at the end of the power supply box 4, and the extrusion assembly is used to extrude the limiting plate 51 to slide down to clamp and limit the sealing plate 41; when the battery pack is fixed inside the power supply box 4, the limiting plate 51 will be elastically driven by the second elastic member to slide upward on the inner wall of the first fixing bracket 5 in the initial state. The battery pack is directly inserted into the power supply box 4, and then the sealing plate 41 is inserted into the power supply box 4 closely to fit the battery pack. By relying on the extrusion assembly to press down the limiting plate 51 to slide, the limiting plate 51 slides down and is stuck on the outer wall of the sealing plate 41, and the second elastic member contracts and is stressed, so as to clamp the battery pack inside the power supply box 4 for use, playing a role in clamping and fixing the battery pack.

[0033] The extrusion assembly includes a second fixing bracket 6, a roller 61, a connecting plate 62 and a bolt 63; the second fixing bracket 6 is fixedly connected to the end of the power supply box 4, and the second fixing bracket 6 is arranged opposite to the first fixing bracket 5; the roller 61 is rotatably connected to the inner wall of the second fixing bracket 6; the connecting plate 62 is fixedly connected to the outer wall of the roller 61; the bolt 63 is threadedly connected to the first fixing bracket 5, and the bolt 63 penetrates through the first fixing bracket 5 and the connecting plate 62 at the same time; when the battery pack is clamped and used portably, the second fixing bracket 6 is fixed to the end of the power supply box 4 to support the roller 61, and the connecting plate 62 presses on the first fixing bracket 5 as the roller 61 rotates. The limiting plate 51 squeezes the second elastic member to contract and slide down. At this time, the limiting plate 51 clamps and fixes the sealing plate 41 in the power supply box 4, and the bolt 63 penetrates through the first fixing bracket 5 and the connecting plate 62 at the same time for fixing, playing a role in fixing and limiting the battery pack.

[0034] As Figures 1 to 5 shown, one end of the winding box 11 is fixedly connected with a connecting frame 7; on both sides of one end of the outer wall of the connecting frame 7, a guide plate 71 is fixedly connected, and a circular ring is fixedly connected to one end of the guide plate 71; when multiple cables 13 are wound in the winding box 11 and move to the next fault point for trial sending, the connecting frame 7 is fixed to the end of the winding box 11, and multiple straps are taken out and fixed on the connecting frame 7, and the other ends of the straps are fixed on the connecting plate 62, which is convenient for carrying the high-voltage signal trial sending device of the distribution line portably. And during the trial sending process, the cables 13 are pulled out of the winding box 11 and passed through the circular ring of the guide plate 71, and the cables 13 are guided by the circular ring to reduce the situation of the cables 13 being dragged and worn on the ground.

[0035] As Figure 1 、 Figures 3 to 5As shown, a hole plate 8 is slidably connected to the inner wall of the connecting plate 62, and a plurality of through holes corresponding to the bolts 63 are formed in the outer wall of the hole plate 8; a guide ring 81 is fixedly connected to one end of the hole plate 8 away from the connecting plate 62. When the signal output line is connected to the faulty line, if the pulled-out cable 13 is too long, the cable 13 is not only likely to fall off the faulty line due to its own gravity, but also likely to be dragged on the ground for a long time and severely worn. After the limit of the connecting plate 62 by the bolt 63 is released, the connecting plate 62 rotates with the roller 61. When the trial transmission controller 1 is placed flat, the blocking plate 41 can fix the battery pack inside the power supply box 4. The connecting plate 62 rotates from the horizontal state to the vertical state, pulls out the hole plate 8 and slides it on the inner wall of the connecting plate 62, and uses the bolt 63 to pass through the connecting plate 62 and the hole plate 8 for fixation. The pulled-out cable 13 passes through the guide ring 81 and is connected to the faulty line. The guide ring 81 can increase the ground clearance of the cable 13 and reduce the situation of the pulled-out cable 13 falling off and being dragged and worn.

[0036] As Figure 1 and Figure 3 As shown, two fixing plates 9 are fixedly connected to the outer wall of the trial transmission controller 1; a rotating shaft 91 is rotatably connected to the inner walls of the two fixing plates 9; an upper cover plate 92 is fixedly connected to the outside of the rotating shaft 91. When the trial transmission controller 1 is used portably, it is fixed to the outer wall of the trial transmission controller 1 by the two fixing plates 9, and an upper cover plate 92 is hinged through the two rotating shafts 91. When transferring the trial transmission detection fault point, the upper cover plate 92 can be flipped and covered on the trial transmission controller 1 to shield the surface of the trial transmission controller 1, reducing the damage of various control knobs on the trial transmission controller 1 touched during the transfer process, and playing a role in protecting the control parts of the trial transmission controller 1.

[0037] Threaded rods 93 are threadedly connected to the four corners of the bottom end of the trial transmission controller 1; a base 94 is fixedly connected to the bottom ends of the four threaded rods 93. When using the high-voltage signal trial transmission device for distribution lines to conduct trial transmission detection on rough ground, the four threaded rods 93 are threadedly fixed to the four corners of the bottom end of the trial transmission controller 1, and the four bases 94 are respectively fixed to the bottom ends of the four threaded rods 93 and supported on the ground. The connection height of the four threaded rods 93 can be freely adjusted according to the flatness of the ground, improving the stability of the high-voltage signal trial transmission device for distribution lines during use. At the same time, when moving between short-distance fault points, the pulled-out cable 13 can be temporarily wound around the four threaded rods 93 for convenient short-distance portable transfer.

[0038] Working process: When testing and sending power to multiple distribution line faults, it is necessary to connect and use the grounding wire and the signal output wire respectively. First, place the test sending controller 1 stably at the distribution line fault point. There are two cables 13 wound inside the winding box 11. The two cables 13 with different functions are respectively wound around two winding rollers 12 through torsion springs. The two cables 13 are the grounding wire and the signal output wire respectively. Connect the two connectors 14 to the clips respectively, and pull out the two cables 13 at the same time. The grounding wire is connected to the actual ground, and the high-voltage signal output wire is connected to the line to be tested. After the test sending controller 1 is externally connected to a portable mobile power supply, start the test. Turn on the switch of the high-voltage signal test sending device for the distribution line, and observe whether the voltage knob is at the zero position. The zero-position green light is on. Observe the grounding status prompted on the test sending controller 1. Then slowly rotate the voltage knob to adjust. When the voltage rises to the time setting value, the test sending controller 1 will prompt grounding, and the fault light will flash and the test sending instrument will disconnect, indicating that there is a fault grounding in the line. Just turn the voltage knob to zero and cut off the power. Remove the two clips. The elastic force of the torsion spring resets and drives the winding rollers 12 to rotate. The two winding rollers 12 synchronously wind the two cables 13 and wind the two cables 13 in the winding box 11. Pick up the test sending controller 1 and you can go to the next fault point portably to continue the test sending, improving the efficiency of the high-voltage signal test sending for the distribution line; when the cable 13 is pulled out from the winding box 11 for use, the elastic force of the first elastic member 22 pulls the wide plate of the connecting rod 21, so that the round rod slides into the inside of the winding box 11, and the pressing plate 2 presses on the outer wall of the remaining cable 13 in the winding box 11, assisting to prevent the cable 13 from being pulled and wound by the winding roller 12 connected by the torsion spring. As the cable 13 is wound inside the winding box 11 after use, the coil of the cable 13 becomes larger and larger, which can push out the connecting rod 21 connected to one end of the pressing plate 2. At the same time, during the process of the connecting rod 21 sliding into the inside of the winding box 11, the remaining length of the round rod of the winding roller 12 exposed outside the winding box 11 can be observed to judge the length of the remaining cable 13 in the winding box 11, reducing the situation of the cable 13 being damaged by pulling; when the cable 13 is pulled and used, as the end of the cable 13 connected to the connector 14 is continuously pulled farther away, the elastic force of the first elastic member 22 pulls the round rod of the connecting rod 21 to slide into the inside of the winding box 11 until the wide plate of the connecting rod 21 presses the pressure sensor 3. The pressure sensor 3 then sends a signal to the test sending controller 1, and the test sending controller 1 issues an alarm that the cable 13 is about to be completely pulled out, and the position of the test sending controller 1 needs to be adjusted, playing a role in warning that the cable 13 is too short and needs to be adjusted;

[0039] When power is connected to the trial transmission controller 1, it is usually cumbersome to use an external portable power source, and the portable power source is not easy to carry. The power supply box 4 is fixed on one side of the trial transmission controller 1. The battery pack is inserted into the interior of the power supply box 4, and the plugging plate 41 is used to fix the battery pack inside the power supply box 4 for power supply. When the battery pack runs out of power, the plugging plate 41 is removed to replace the battery pack, which plays a role in making the power connection of the high-voltage signal trial transmission device of the power distribution line portable; when the battery pack is fixed inside the power supply box 4, the limiting plate 51 will be elastically driven by the second elastic member to slide upward on the inner wall of the first fixing frame 5 in the initial state. The battery pack is directly inserted into the interior of the power supply box 4, and then the plugging plate 41 is inserted into the interior of the power supply box 4 to fit the battery pack. Relying on the pressing component to press down the limiting plate 51 to slide, the limiting plate 51 slides down and is stuck on the outer wall of the plugging plate 41, and the second elastic member contracts and is stressed, so as to clamp the battery pack inside the power supply box 4 for use, which plays a role in fixing and clamping the battery pack; when the battery pack is clamped and used portably, the second fixing frame 6 is fixed at the end of the power supply box 4 to support the roller 61. The connecting plate 62 rotates with the roller 61 and presses on the first fixing frame 5. The limiting plate 51 squeezes the second elastic member to contract and slide down. At this time, the limiting plate 51 clamps and fixes the plugging plate 41 inside the power supply box 4, and the bolt 63 is used to penetrate through the first fixing frame 5 and the connecting plate 62 at the same time for fixation, which plays a role in fixing and limiting the battery pack;

[0040] When multiple cables 13 are wound in the winding box 11 and moved to the next fault point for trial transmission, the connecting frame 7 is fixed at the end of the winding box 11. Take out multiple straps and fix them on the connecting frame 7, and fix the other ends of the straps on the connecting plate 62, which is convenient for carrying the high-voltage signal trial transmission device of the power distribution line portably. And during the trial transmission process, the cable 13 is pulled out from the interior of the winding box 11 and passes through the ring of the guide plate 71. Rely on the ring to guide the cable 13 to reduce the situation of the cable 13 being dragged and worn on the ground; when the signal output line is connected to the faulty line, if the pulled-out cable 13 is too long, the cable 13 is not only easy to fall off the faulty line due to its own gravity, but also easy to be severely worn by dragging on the ground for a long time. After the limiting of the bolt 63 on the connecting plate 62 is released, the connecting plate 62 rotates with the roller 61. When the trial transmission controller 1 is placed flat, the plugging plate 41 can fix the battery pack inside the power supply box 4 for connection. The connecting plate 62 rotates from the horizontal state to the vertical state, and the orifice plate 8 is pulled out and slides on the inner wall of the connecting plate 62. The bolt 63 is used to pass through the connecting plate 62 and the orifice plate 8 for fixation. The pulled-out cable 13 passes through the guide ring 81 and is connected to the faulty line. The guide ring 81 can increase the distance of the cable 13 from the ground and reduce the situation of the pulled-out cable 13 falling off and being dragged and worn;

[0041] When the trial transmission controller 1 is used portably, it is fixed on the outer wall of the trial transmission controller 1 by two fixing plates 9, and a top cover 92 is hinged through two rotating shafts 91. When transferring the trial transmission detection fault point, the top cover 92 can be flipped to cover the trial transmission controller 1, shielding the surface of the trial transmission controller 1, reducing the damage of various control knobs of the trial transmission controller 1 touched during the transfer process, and playing a role in protecting the control parts of the trial transmission controller 1;

[0042] When using the high-voltage signal trial transmission device for distribution lines to conduct trial transmission detection on rough ground, four threaded rods 93 are threadedly fixed at the four corners of the bottom end of the trial transmission controller 1, and four bases 94 are respectively fixed at the bottom ends of the four threaded rods 93 to support on the ground. The connection height of the four threaded rods 93 can be freely adjusted according to the flatness of the ground, improving the stability of the high-voltage signal trial transmission device for distribution lines during use. At the same time, when moving between short-distance fault points, the pulled-out cable 13 can be temporarily wound around the four threaded rods 93, facilitating short-distance portable transfer.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage signal trial transmission device for a distribution line, characterized in that: It includes a trial delivery controller; a winding box is fixedly connected to the outer wall of the trial delivery controller; two winding rollers are respectively rotatably connected to the inside of the winding box through two torsion springs; cables are fixedly connected to the outer walls of the two winding rollers; a connector is fixedly connected to one end of the cable away from the winding roller; A pressing plate is slidably connected to the inner wall of the winding box near the winding roller; one end of the pressing plate away from the winding roller is fixedly connected to a connecting rod, and the connecting rod is composed of a wide plate and a round rod, and the round rod is fixedly connected to the pressing plate; a first elastic member is sleeved on the outer wall of the round rod of the connecting rod, and the first elastic member is fixedly connected between the wide plate of the connecting rod and the outer wall of the winding box; When the cable is pulled out from the winding box for use, the first elastic member elastically pulls the wide plate of the connecting rod, so that the round rod slides into the inside of the winding box, and the pressing plate presses against the outer wall of the remaining cable in the winding box, assisting in preventing the cable from being pulled and wound by the winding roller connected by the torsion spring; A power supply box is fixedly connected to the outer wall of the trial delivery controller on the side away from the winding box; a battery pack is installed inside the power supply box, and a plugging plate is installed near the battery pack inside the power supply box; A first fixing frame is fixedly connected to the end of the power supply box; a limiting plate is installed on the inner wall of the first fixing frame through a second elastic member; a pressing assembly is arranged at the end of the power supply box, and the pressing assembly is used to press the limiting plate to slide down to clamp and limit the plugging plate; The pressing assembly includes a second fixing frame, a roller, a connecting plate and a bolt; the second fixing frame is fixedly connected to the end of the power supply box, and the second fixing frame is arranged opposite to the first fixing frame; the roller is rotatably connected to the inner wall of the second fixing frame; the connecting plate is fixedly connected to the outer wall of the roller; the bolt is threadedly connected to the first fixing frame, and the bolt penetrates through the first fixing frame and the connecting plate at the same time.

2. The high-voltage signal trial transmission device for a distribution line according to claim 1, characterized in that: A pressure sensor is fixedly connected to the outer wall of the winding box near the connecting rod, and the pressure sensor is electrically connected to the trial delivery controller; the elastic pulling of the first elastic member on the wide plate of the connecting rod can squeeze and trigger the pressure sensor.

3. The high-voltage signal trial transmission device for a distribution line according to claim 1, wherein: A connecting frame is fixedly connected to the end of the winding box; guide plates are fixedly connected to one side of both ends of the outer wall of the connecting frame, and a circular ring is fixedly connected to one end of the guide plate.

4. A high-voltage signal trial transmission device for a distribution line according to claim 1, characterized in that: A hole plate is slidably connected to the inner wall of the connecting plate, and a plurality of through holes corresponding to the bolts are formed in the outer wall of the hole plate; a guide ring is fixedly connected to one end of the hole plate away from the connecting plate.

5. A high-voltage signal trial transmission device for a distribution line according to claim 1, characterized in that: Two fixing plates are fixedly connected to the outer wall of the trial delivery controller; a rotating shaft is rotatably connected to the inner walls of the two fixing plates; an upper cover plate is fixedly connected to the outside of the rotating shaft.

6. The high-voltage signal trial transmission device for a distribution line according to claim 1, characterized in that: Threaded rods are respectively connected to the four corners of the bottom end of the trial delivery controller; bases are fixedly connected to the bottom ends of the four threaded rods.

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