CN220983408U - Line loss detection device - Google Patents

Abstract

The utility model relates to the technical field of low-voltage line detection, in particular to a line loss detection device. Including the brace table, the top of brace table is fixed with the pick-up plate, and the inboard at pick-up plate both ends all equipartition is fixed with the camera, installs detection mechanism on the pick-up plate, and detection mechanism is including passing guide pillar, copper, connecting plate, extension spring, current sensor and signal controller, and the inside of pick-up plate just is located equipartition sliding connection between the camera at both ends and has and passes the guide pillar, and the one end of passing the guide pillar just is located the inboard of pick-up plate and is fixed with the copper. According to the line loss detection device provided by the utility model, the detection plate is fixed at the top of the supporting table, the limiting mechanism at the inner side of the limiting table is used for positioning the line, the inner sides of the detection mechanisms are used for stably moving under the positioning of the detection plate when the line moves, the current generated by electric leakage of the line is transmitted to the current sensor through the copper plate, and the horn and the alarm lamp are controlled by the signal controller to remind detection personnel.

Description

Line loss detection device

Technical Field

The utility model relates to the technical field of low-voltage line detection, in particular to a line loss detection device.

Background

The low-voltage line comprises a low-voltage overhead line, a low-voltage overhead insulating line, a low-voltage cable line and an indoor distribution line, is used for directly conveying electric energy to low-voltage electric equipment, and is an important component of a low-voltage distribution system. The low-voltage circuit can be connected from a public low-voltage distribution network and led out through a low-voltage distribution room; the system can also be led out from a low-voltage distribution device of a user-owned power transformation and distribution room.

The utility model discloses a low pressure line loss detection device, including the mounting bracket, still include fixed plate, gag lever post, supporting leg, winding mechanism and detection mechanism, the surface symmetry of mounting bracket is provided with two sets of fixed plates, and the both sides surface symmetry of every group fixed plate is provided with two sets of gag lever posts, and the surface of gag lever post is provided with the supporting leg, and the both sides surface symmetry of mounting bracket is provided with two sets of winding mechanism, and the inside of fixed plate is provided with detection mechanism, and winding mechanism includes connecting rod, fixed block, bull stick, baffle, winding wheel and end plate. The low-voltage line loss detection device solves the problems that the common low-voltage line loss detection device can only detect one low-voltage line at the same time, has low detection efficiency, is difficult to be suitable for lines with different specifications in the detection process, and has low application range;

When the above technology is used, the following technical problems are found in the prior art: when the existing detection device is used, due to different pulling forces, the detected line position is easy to deviate, so that the detection is not accurate enough, and therefore, the line loss detection device is designed and used for providing another technical scheme for the technical problems.

Disclosure of utility model

Based on this, it is necessary to provide a line loss detection device, to solve the above-mentioned technical problem, to provide a detection plate fixed at the top of the supporting table, let the inboard stop gear of limiting table fix a position to the line simultaneously, let the removal of line pass through under the location of detection plate, carry out stable removal in the inboard of a plurality of cameras, and then can prevent the position deviation of circuit, lead to detecting inadequately accurately, let the line after the detection export through spacing post simultaneously, then carry out the rolling in the outside of rolling table.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides a line loss detection device, includes the brace table, the top of brace table is fixed with the pick-up plate, the inboard at pick-up plate both ends all equipartitions are fixed with the camera, install detection mechanism on the pick-up plate, detection mechanism includes transmission post, copper, connecting plate, extension spring, current sensor and signal controller, the inside of pick-up plate just is located the equipartition sliding connection between the camera at both ends has the conduction post, the one end of transmission post just is located the inboard of pick-up plate and is fixed with the copper, the one end that the copper was kept away from to the conduction post is fixed with the connecting plate, the outside of transmission post just is located between pick-up plate and the connecting plate and has cup jointed the extension spring, just the one end and the pick-up plate of extension spring are fixed with the connecting plate, the one end at pick-up plate top is fixed with current sensor, just current sensor passes through wire electric connection with the connecting plate, the other end at pick-up plate top is fixed with signal controller, just signal controller and current sensor pass through wire electric connection.

As a preferred implementation manner of the line loss detection device provided by the utility model, a display is fixed on one side of the top of the supporting table, the display is electrically connected with the camera through a wire, a loudspeaker is fixed on the other side of the top of the supporting table, an alarm lamp is fixed on the top of the loudspeaker, and the loudspeaker is electrically connected with the signal controller, and the alarm lamp is electrically connected with the signal controller through a wire.

As a preferred implementation mode of the line loss detection device provided by the utility model, the top of the supporting table and the two ends of the supporting table, which are positioned on the detection plate, are respectively fixedly provided with a limit table, the inside of the limit table, which is far away from one end of the detection plate, is uniformly and slidingly connected with a sliding frame, the inside of the bottom end of the sliding frame is rotationally connected with a rotating wheel, the inside of the limit table is provided with a limit mechanism for driving the sliding frame to move, the limit mechanism comprises a rotating column and a thread section, the inside of the limit table is rotationally connected with the rotating column at a position corresponding to the sliding frame, the outside of the top end of the rotating column is provided with a thread section, and the outside of the thread section is in threaded connection with the sliding frame.

As a preferred implementation mode of the line loss detection device provided by the utility model, limit posts are fixed at two ends of the top of the supporting table.

As a preferred implementation mode of the line loss detection device provided by the utility model, positioning columns are fixed on two sides of two ends of the supporting table, and a winding table is connected to the outer sides of the positioning columns in a sliding manner.

As a preferred implementation mode of the line loss detection device provided by the utility model, the limiting mechanism comprises a rotating gear, a driving ring, a driving motor and a driving gear, wherein the driving ring is rotationally connected inside the limiting table, the rotating gear is fixed at the bottom of the outer side of the threaded section and is meshed with the driving ring, the driving motor is fixed inside the limiting table, the output end of the driving motor is connected with the driving gear, and the driving gear is meshed with the driving ring.

As a preferred implementation mode of the line loss detection device provided by the utility model, one end of the positioning column, which is far away from the supporting table, is provided with a positioning mechanism for limiting the winding table, the positioning mechanism comprises a sliding block and a positioning plate, a sliding groove is formed in the inner part of one end of the positioning column, which is far away from the supporting table, the sliding block is fixed in the sliding groove, the positioning plate is connected to the outer side of the sliding block in a sliding manner, an adjusting groove is formed in the inner side of the positioning plate, and the sliding block is connected with the positioning plate in a sliding manner through the adjusting groove.

As a preferred embodiment of the line loss detection device provided by the utility model, the adjusting groove consists of a rectangular groove and a circular groove, and the bottom of the rectangular groove is connected with the circular groove.

In a preferred embodiment of the line loss detecting device provided by the utility model, the rectangular groove is rectangular, and the circular groove is circular.

It can be clearly seen that the technical problems to be solved by the present application can be necessarily solved by the above-mentioned technical solutions of the present application.

Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:

According to the line loss detection device provided by the utility model, the detection plate is fixed at the top of the supporting table, the limiting mechanism at the inner side of the limiting table is used for positioning the line, the inner sides of the plurality of detection mechanisms are used for stably moving under the positioning of the detection plate, the current generated by electric leakage of the line is transmitted to the current sensor through the copper plate, the loudspeaker and the alarm lamp are controlled by the signal controller to remind a detector, so that the position deviation of the line can be prevented, the detection is not accurate enough, the detected line is led out through the limiting column, and then the line is wound at the outer side of the winding table;

The sliding frames are driven to move by the rotation of the driving ring through the matching of the sliding frames, the rotating wheels and the driving ring, and the circuit can stably move on the inner side of the limiting table through the movement of the sliding frames and the assistance of the rotating wheels;

Through the cooperation of reference column, sliding block and locating plate for the locating plate can slide in the outside of sliding block, can let the locating plate pass through the circular slot in the outside rotation of sliding block simultaneously, and then can be convenient for assemble and dismantle the rolling platform.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the detecting plate of the present utility model;

FIG. 3 is a schematic view of a positioning column according to the present utility model;

FIG. 4 is a schematic view of the structure of the positioning plate of the present utility model;

FIG. 5 is a schematic view of the internal structure of the limiting table of the present utility model;

fig. 6 is a schematic structural view of the drive ring of the present utility model.

In the figure: 1. a support table; 2. a limit column; 3. positioning columns; 4. a winding table; 5. a detection plate; 6. a limiting table; 7. a camera; 8. a sliding block; 9. rectangular grooves; 10. a circular groove; 11. a carriage; 12. a rotating wheel; 13. a spin column; 14. a threaded section; 15. rotating the gear; 16. a drive ring; 17. a driving motor; 18. a transmission gear; 19. a positioning plate; 20. a display; 21. a horn; 22. an alarm lamp; 23. a guide post; 24. copper plate; 25. a connecting plate; 26. a tension spring; 27. a current sensor; 28. and a signal controller.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As described in the background art, when the existing detection device is used, the detected line position is easily shifted due to different pulling forces, resulting in inaccurate detection.

In order to solve the technical problem, the utility model provides a line loss detection device.

Specifically, referring to fig. 1 to 4, the line loss detection device specifically includes:

the device comprises a supporting table 1, wherein a detection plate 5 is fixed at the top of the supporting table 1, and cameras 7 are uniformly distributed and fixed on the inner sides of two ends of the detection plate 5;

The limiting tables 6 are positioned at two ends of the top of the supporting table 1;

the limiting columns 2 are positioned at two ends of the top of the supporting table 1;

The positioning columns 3 are positioned on two sides of two ends of the supporting table 1, and the outer sides of the positioning columns 3 are connected with the winding tables 4 in a sliding manner;

the limiting mechanism is positioned on the inner side of the limiting table 6.

According to the line loss detection device provided by the utility model, the detection plate 5 is fixed at the top of the supporting table 1, the limit mechanism at the inner side of the limit table 6 is used for positioning the line, under the condition that the line moves through the positioning of the detection plate 5, the current generated by electric leakage of the line is transmitted to the current sensor 27 through the copper plate 24, the loudspeaker 21 and the alarm lamp 22 are controlled by the signal controller 28 to remind a detection person, so that the line position deviation can be prevented, the detection is not accurate enough, the detected line is led out through the limit column 2, and then the winding is carried out at the outer side of the winding table 4.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

Referring to fig. 1-4, a line loss detection device comprises a supporting table 1, a detection plate 5 is fixed at the top of the supporting table 1, cameras 7 are uniformly distributed and fixed on the inner sides of two ends of the detection plate 5, the outer sides of lines are shot through the cameras 7, a detection mechanism is mounted on the detection plate 5 and used for detecting electric wire leakage, the detection mechanism comprises a transmission pole 23, a copper plate 24, a connecting plate 25, a tension spring 26, a current sensor 27 and a signal controller 28, conduction columns 23 are uniformly distributed and slidingly connected between the cameras 7 at two ends and inside the detection plate 5, one end of the transmission pole 23 is fixedly provided with the copper plate 24 and inside the detection plate 5, so that when electric wires passing through the inner sides of the detection plate 5 are leaked, electric arcs jump into the inner sides of the copper plate 24 and are conducted through the transmission pole 23, one end of the transmission pole 23 far away from the copper plate 24 is fixedly provided with the connecting plate 25, the outer sides of the transmission pole 23 are sleeved with the tension spring 26 between the detection plate 5 and the connecting plate 25, one end of the tension spring 26 is fixedly provided with the copper plate 5, the other end of the tension spring 26 is fixedly provided with the connecting plate 25, when lines with different diameters enter a plurality of copper plates 24, and the copper plates 24 are extruded and 24 are driven to move by the connecting plate 25;

One end of the top of the detection plate 5 is fixed with a current sensor 27, the current sensor 27 is electrically connected with the connecting plate 25 through a wire, so that current conducted by the copper plate 24 through the guide post 23 and the connecting plate 25 enters the interior of the current sensor 27, the other end of the top of the detection plate 5 is fixed with a signal controller 28, the signal controller 28 is electrically connected with the current sensor 27 through the wire, and after the current sensor 27 detects the current, a signal is transmitted to the signal controller 28, and the model of the signal controller 28 is SC200;

A display 20 is fixed on one side of the top of the supporting table 1, the display 20 is electrically connected with the camera 7 through a wire, pictures shot by the camera 7 are displayed through the display 20, detection personnel can watch conveniently, a loudspeaker 21 is fixed on the other side of the top of the supporting table 1, an alarm lamp 22 is fixed on the top of the loudspeaker 21, the loudspeaker 21 is electrically connected with a signal controller 28, and the alarm lamp 22 is electrically connected with the signal controller 28 through the wire, so that after a current sensor 27 detects current, the signal controller 28 controls the loudspeaker 21 and the alarm lamp 22 to remind detection personnel;

The top of the supporting table 1 and two ends of the detection plate 5 are respectively fixed with a limit table 6, sliding frames 11 are uniformly and slidably connected in the inner part of one end, far away from the detection plate 5, of the limit tables 6, rotating wheels 12 are rotatably connected in the inner part of the bottom end of each sliding frame 11, and each rotating wheel 12 is made of an insulating material, so that a line is guided and moved among the sliding frames 11 through the rotation of the corresponding rotating wheel 12;

In this embodiment, the number of the carriages 11 is four, and in other embodiments, the number of the carriages 11 is determined according to the positioning of the line.

The two ends of the top of the supporting table 1 are respectively fixed with a limiting column 2, so that a line can move through the sliding of the outer sides of the limiting columns 2 after coming out through the limiting tables 6, positioning columns 3 are respectively fixed on the two sides of the two ends of the supporting table 1, and the outer sides of the positioning columns 3 are slidably connected with a winding table 4, so that the detected line guided by the limiting columns 2 is wound on the outer sides of the winding table 4;

The limiting mechanism for driving the sliding frame 11 to move is arranged in the limiting table 6, and comprises a rotating column 13, a thread section 14, a rotating gear 15, a driving ring 16, a driving motor 17 and a driving gear 18, wherein the driving ring 16 is rotationally connected in the limiting table 6, the driving ring 16 can stably rotate on the inner side of the limiting table 6, the rotating column 13 is rotationally connected in the inner side of the limiting table 6 and at a position corresponding to the sliding frame 11, the thread section 14 is arranged on the outer side of the top end of the rotating column 13, the outer side of the thread section 14 is in threaded connection with the sliding frame 11, the sliding frame 11 in threaded connection is driven by the rotation of the thread section 14 to move, and a plurality of sliding frames 11 are driven by the thread section 14 to move close to or far away from each other simultaneously;

The bottom outside the thread section 14 is fixed with a rotary gear 15, and the rotary gear 15 is connected with a transmission ring 16 in a meshing way, so that the rotation of the transmission ring 16 drives the rotary gear 15 in the meshing way to rotate, a driving motor 17 is fixed in the limiting table 6, the output end of the driving motor 17 is connected with a transmission gear 18, and the transmission gear 18 is connected with the transmission ring 16 in a meshing way, and the rotation of the transmission gear 18 drives the rotary gear 15 to rotate through the transmission ring 16.

According to the line loss detection device provided by the embodiment, a line to be detected enters the inner side of one of the limit tables 6 and then enters the inner side of the detection plate 5, the detected line is electrified by entering the inner side of the other limit table 6 through the plurality of cameras 7 and the plurality of copper plates 24 on the inner side of the detection plate 5, then when the detected line moves on the inner sides of the detection plate 5 and the limit tables 6, when the detected line is broken, current in the line enters the interior of the current sensor 27 through the connection with the copper plates 24, the current is conducted through the conduction of the guide post 23 and the connecting plate 25, after the current sensor 27 detects the current, a signal is transmitted to the signal controller 28, the signal controller 28 controls the horn 21 and the alarm lamp 22 to remind a detection person, and meanwhile, the picture of the detected line is displayed on the display 20;

Meanwhile, the drive motor 17 is used for driving the transmission gear 18 to rotate, the transmission gear 18 rotates to drive the rotation gear 15 to rotate through the transmission ring 16 which is in meshed connection, the rotation of the rotation gear 15 drives the thread section 14 to rotate through the rotary column 13, the rotation of the thread section 14 drives the sliding frame 11 in threaded connection to move, the sliding frame 11 moves to drive the sliding wheels 12 to move, the plurality of sliding wheels 12 are moved close to each other, and then the line located on the inner side of the limiting table 6 is positioned, so that the position deviation of the line is prevented, the detection is inaccurate, and then the detected line enters the outer side of the winding table 4 through the guiding of the limiting column 2 to be wound.

Example two

Referring to fig. 1, 5 and 6, a line loss detection device, a positioning mechanism for limiting a winding table 4 is installed at one end of a positioning column 3 far away from a supporting table 1, the positioning mechanism comprises a sliding block 8 and a positioning plate 19, a sliding groove is formed in the inner part of one end of the positioning column 3 far away from the supporting table 1, the sliding block 8 is fixed in the sliding groove, the positioning plate 19 is slidingly connected to the outer side of the sliding block 8, the winding table 4 at the outer side of the positioning column 3 can be positioned by the movement of the positioning plate 19 at the outer side of the sliding block 8, an adjusting groove is formed in the inner side of the positioning plate 19, the sliding block 8 and the positioning plate 19 are slidingly connected through the adjusting groove, and the positioning plate 19 slides at the outer side of the sliding block 8 through the adjusting groove;

The adjusting groove comprises rectangular groove 9 and circular groove 10, and rectangular groove 9's shape is the rectangle for locating plate 19 only can slide in the outside of sliding block 8 through rectangular groove 9, can not rotate, and rectangular groove 9's bottom is connected with circular groove 10, and circular groove 10's shape is circular, makes locating plate 19 can rotate in the outside of sliding block 8 through circular groove 10.

According to the line loss detection device provided by the embodiment, when the winding table 4 is required to be assembled, the winding table 4 is arranged on the outer side of the positioning column 3 through sliding connection between the winding table 4 and the positioning column 3, at this time, the positioning plate 19 is parallel to the positioning column 3, after the winding table 4 is arranged on the outer side of the positioning column 3, the positioning plate 19 is enabled to rotate on the outer side of the sliding block 8 through the circular groove 10, the positioning plate 19 and the positioning column 3 are enabled to be mutually perpendicular, then the sliding block 8 is enabled to enter the inner side of the rectangular groove 9 through sliding on the inner side of the circular groove 10, the positioning plate 19 is lowered, the positioning plate 19 is enabled to be limited on the outer side of the sliding block 8, the outer side winding table 4 of the positioning column 3 can be limited, and the winding table 4 can rotate on the outer side of the positioning column 3 but cannot be separated from the positioning column 3.

The use process of the line loss detection device provided by the utility model is as follows:

The circuit to be detected enters the inner side of one of the limit tables 6 and then enters the inner side of the detection plate 5, the circuit to be detected is electrified by entering the inner side of the other limit table 6 through a plurality of cameras 7 and a plurality of copper plates 24 on the inner side of the detection plate 5, then when the circuit to be detected moves on the inner sides of the detection plate 5 and the limit tables 6, when a detected electric wire is broken, current in the electric wire enters the inner part of a current sensor 27 through the connection with the copper plates 24, the current is conducted through a guide post 23 and a connecting plate 25, after the current sensor 27 detects the current, a signal is transmitted to a signal controller 28, the signal controller 28 controls a horn 21 and an alarm lamp 22 to remind a detection person, and meanwhile, the picture of the detected electric wire is displayed on a display 20;

Meanwhile, the drive motor 17 is used for driving the transmission gear 18 to rotate, the transmission gear 18 rotates to drive the rotation gear 15 to rotate through the transmission ring 16 which is meshed and connected, the rotation gear 15 drives the thread section 14 to rotate through the rotary column 13, the rotation of the thread section 14 drives the sliding frame 11 which is in threaded connection to move, the sliding frame 11 moves to drive the sliding wheels 12 to move, the plurality of sliding wheels 12 move close to each other, and then the line positioned at the inner side of the limiting table 6 is positioned, so that the position deviation of the line is prevented, the detection is inaccurate, and then the detected line enters the outer side of the winding table 4 through the guiding of the limiting column 2 to be wound;

When the rolling platform 4 needs to be assembled, the rolling platform 4 is arranged on the outer side of the positioning column 3 through sliding connection of the rolling platform 4 and the positioning column 3, at this time, the positioning plate 19 is parallel to the positioning column 3, after the rolling platform 4 is arranged on the outer side of the positioning column 3, the positioning plate 19 is rotated on the outer side of the sliding block 8 through the circular groove 10, so that the positioning plate 19 and the positioning column 3 are mutually perpendicular, then the sliding block 8 is slid into the inner side of the rectangular groove 9 on the inner side of the circular groove 10, the positioning plate 19 is lowered, the positioning plate 19 is limited on the outer side of the sliding block 8, the outer side of the positioning column 3 can be limited by the rolling platform 4, and the rolling platform 4 can rotate on the outer side of the positioning column 3 but cannot be separated from the positioning column 3.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (9)

1. The utility model provides a line loss detection device, its characterized in that includes brace table (1), the top of brace table (1) is fixed with pick-up plate (5), the inboard at pick-up plate (5) both ends all equipartition is fixed with camera (7), install detection mechanism on pick-up plate (5), detection mechanism includes transmission post (23), copper (24), connecting plate (25), extension spring (26), current sensor (27) and signal controller (28), the inside of pick-up plate (5) and be located between camera (7) at both ends equipartition sliding connection have conduction post (23), the one end of conduction post (23) just is fixed with copper (24) in the inboard of pick-up plate (5), the one end that keeps away from copper (24) is fixed with connecting plate (25), the outside of conduction post (23) just is located between pick-up plate (5) and connecting plate (25) and extension spring (26) one end and pick-up plate (5) are fixed, the other end and connecting plate (25) of extension spring (26) are fixed, the one end and connecting plate (25) are fixed with current sensor (27) and electrical connection ware (27), the other end of the top of the detection plate (5) is fixed with a signal controller (28), and the signal controller (28) is electrically connected with the current sensor (27) through a lead.

2. The line loss detection device according to claim 1, wherein a display (20) is fixed on one side of the top of the supporting table (1), the display (20) is electrically connected with the camera (7) through a wire, a horn (21) is fixed on the other side of the top of the supporting table (1), an alarm lamp (22) is fixed on the top of the horn (21), and the horn (21) and the signal controller (28) are electrically connected through wires, and the alarm lamp (22) and the signal controller (28) are electrically connected through wires.

3. The line loss detection device according to claim 1, characterized in that the top of the supporting table (1) and the two ends located on the detection plate (5) are both fixed with a limit table (6), the limit table (6) is far away from the inside equipartition sliding connection of detection plate (5) one end and has a sliding frame (11), the inside rotation of sliding frame (11) bottom is connected with a rotating wheel (12), the internally mounted of limit table (6) has a stop gear that is used for driving sliding frame (11) to move, stop gear includes column (13) and screw thread section (14), the inside of limit table (6) and the position rotation that corresponds with sliding frame (11) are connected with column (13), screw thread section (14) has been seted up in the outside on column (13) top, just the outside and the sliding frame (11) threaded connection of screw thread section (14).

4. The line loss detection device according to claim 1, wherein limiting columns (2) are fixed at two ends of the top of the supporting table (1).

5. The line loss detection device according to claim 1, wherein positioning columns (3) are fixed on two sides of two ends of the supporting table (1), and a winding table (4) is slidably connected to the outer side of each positioning column (3).

6. A line loss detection device according to claim 3, characterized in that the limit mechanism comprises a rotating gear (15), a transmission ring (16), a driving motor (17) and a transmission gear (18), the transmission ring (16) is rotationally connected in the limit table (6), the rotating gear (15) is fixed at the bottom of the outer side of the thread section (14), the rotating gear (15) is in meshed connection with the transmission ring (16), the driving motor (17) is fixed in the limit table (6), the output end of the driving motor (17) is connected with the transmission gear (18), and the transmission gear (18) is in meshed connection with the transmission ring (16).

7. The line loss detection device according to claim 5, wherein the positioning mechanism for limiting the winding table (4) is installed at one end of the positioning column (3) far away from the supporting table (1), the positioning mechanism comprises a sliding block (8) and a positioning plate (19), a sliding groove is formed in the inner portion of the positioning column (3) far away from one end of the supporting table (1), the sliding block (8) is fixed in the sliding groove, the positioning plate (19) is connected to the outer side of the sliding block (8) in a sliding manner, an adjusting groove is formed in the inner side of the positioning plate (19), and the sliding block (8) and the positioning plate (19) are connected in a sliding manner through the adjusting groove.

8. The line loss detection device according to claim 7, wherein the adjusting groove is composed of a rectangular groove (9) and a circular groove (10), and the bottom of the rectangular groove (9) is connected with the circular groove (10).

9. Line loss detection device according to claim 8, characterized in that the rectangular groove (9) is rectangular in shape and the circular groove (10) is circular in shape.