CN116298671A

CN116298671A - Power grid line monitoring device and monitoring method

Info

Publication number: CN116298671A
Application number: CN202310066869.5A
Authority: CN
Inventors: 付文龙; 曾翔; 杨建洪; 张炎; 朱帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-06-23

Abstract

The invention discloses a power grid line monitoring device and a monitoring method, and belongs to the technical field of line monitoring. The utility model provides a power grid line monitoring devices, includes the base, fixed mounting has the monitoring case on the base, still includes: the two symmetrically arranged supporting legs are fixedly arranged below the base, and arc plates are fixedly arranged at the lower ends of the supporting legs; the connecting plate is fixedly arranged below the base, a chute seat is fixedly arranged on the connecting plate, a half-moon gear plate is arranged in the chute seat in a sliding mode, a roller shaft seat is rotatably arranged on the half-moon gear plate, and a material belt roller is movably arranged on the roller shaft seat; the connecting plate is fixedly provided with a driving part for driving the half-moon gear plate to slide, and the driving part drives the half-moon gear plate and the roller shaft seat to rotate, so that an insulating belt on the material belt roller is wound on a cable to carry out temporary rescuing, and the occurrence of accidents is reduced; and when the rush-repair personnel arrive at the site, the objective insulating tape can directly draw attention of the rush-repair personnel, so that the early-stage investigation time is shortened.

Description

Power grid line monitoring device and monitoring method

Technical Field

The invention relates to the technical field of line monitoring, in particular to a power grid line monitoring device and a monitoring method.

Background

The smart grid is the intelligent (intelligent electric power) of the power grid, is based on an integrated high-speed two-way communication network, and realizes the aims of reliability, safety, economy, high efficiency, environmental friendliness and safe use of the power grid through application of advanced sensing and measuring technologies, advanced equipment technologies, advanced control methods and advanced decision support system technologies, and is mainly characterized by self-healing, excitation and protection of users, attack resistance, provision of electric energy quality meeting the requirements of the users, permission of access of various power generation forms, starting of the electric market and optimized and efficient operation of assets.

At present, the existing power grid line real-time monitoring equipment is characterized in that a monitoring device is directly fixed at the top end of a pole tower, and because the monitoring range of a single detection device is limited, the monitoring dead angle is easy to exist at the top end of the pole tower right below the monitoring device, and when part of cable surface insulation layers are monitored to age, emergency repair personnel can be notified only through a video transmission mode, and after the emergency repair personnel arrive at the site, the emergency repair personnel also need to check in sequence, so that the operation is complex, time and labor are wasted, and unnecessary waste is caused.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, after the aging of part of cable surface insulation layers is monitored, emergency repair personnel can be notified only through a video transmission mode, and after the emergency repair personnel arrive at the site, the emergency repair personnel also need to check in sequence, the operation is complex, time and labor are wasted, and unnecessary waste is caused.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a power grid line monitoring devices, includes the base, fixed mounting has the monitoring case on the base, still includes: the two symmetrically arranged supporting legs are fixedly arranged below the base, and arc-shaped plates are fixedly arranged at the lower ends of the supporting legs; the connecting plate is fixedly arranged below the base, a chute seat is fixedly arranged on the connecting plate, a half-moon gear plate is slidably arranged in the chute seat, a roller shaft seat is rotatably arranged on the half-moon gear plate, and a material belt roller is movably arranged on the roller shaft seat; the connecting plate is fixedly provided with a driving part for driving the half-moon gear plate to slide.

For facilitating the troubleshooting of faults such as broken lines of lines, ageing of insulating layers, collapse of electric wire columns and the like, preferably, the monitoring box comprises a box body, an L-shaped partition plate is fixedly installed in the box body, a PLC (programmable logic controller) controller is fixedly installed on the inner side of the L-shaped partition plate, an electric cradle head is fixedly installed on a base, a monitoring camera is installed at the movable end of the electric cradle head, an infrared temperature sensor is arranged on the front side of the monitoring camera, and the electric cradle head, the monitoring camera and the infrared temperature sensor are electrically connected with the PLC controller.

In order to clear away the dust that adheres to on the cable, alleviate the load of cable, further, the lower fixed surface of arc has the female layer of magic subsides, it has the magic sub-layer to paste on the female layer of magic subsides, one side fixed mounting that the magic sub-layer kept away from the female layer of magic subsides has the brush.

In order to perform simple rescue of the aged insulation layer, further, the driving part includes: the first gear and the second gear are symmetrically arranged, the first gear and the second gear are rotatably arranged on the joint plate, the first gear is in meshed connection with the second gear, and the first gear is in meshed connection with the half-moon gear plate; the third gear is rotatably arranged on the joint plate and is in meshed connection with the second gears on two sides, and a first annular rack is fixedly arranged on the third gear; the motor is fixedly arranged on the connecting plate, a fourth gear is fixedly arranged at the output end of the motor, and the fourth gear is meshed and connected with the first annular rack.

In order to improve the transmission efficiency of the wrapping insulating layer, an air cavity is reserved between the chute seat and the half-moon gear plate, a rubber wheel is mounted on one surface of the half-moon gear plate, which is positioned in the chute seat, through bolts, and the rubber wheel is abutted against the inner wall of the chute seat.

In order to reduce the rocking of the material belt roller when wrapping the insulating layer, further, still include: the box body is internally fixedly provided with a fan, a first air inlet hole is formed in the box body, and an air inlet pipe is fixedly connected between the output end of the fan and the chute seat.

In order to blow away the dust on the cable, further, a second air inlet hole is formed in the roller shaft seat, the second air inlet hole extends to the lower surface of the half-moon gear plate all the way, and a tuyere communicated with the second air inlet hole is fixedly arranged on the roller shaft seat.

In order to reduce the interference of birds, furthermore, the supporting shaft is rotatably arranged in the box body, the turbine is arranged at the lower end of the supporting shaft, the fan blade is arranged at the upper end of the supporting shaft, and the reflecting plate is fixedly arranged on the fan blade.

In order to clamp the device on the cable, it is preferable to further comprise: the gear box is fixedly arranged on two sides below the base, a fifth gear is rotatably arranged in the gear box through a torsion spring, two sides of the fifth gear are connected with a straight rack in a meshed mode, a clamping rod is fixedly arranged on the straight rack, and the lower end of the clamping rod penetrates out of the gear box and is provided with a clamping wheel.

A power grid line monitoring method comprises the following operation steps:

step 1: clamping the monitoring device on the cable;

step 2: the monitoring device can monitor the heating condition of the power grid insulating block and the aging condition of the cable surface insulating layer during the inspection period;

step 3: the monitoring device can simply preprocess the surface of the insulating layer at the place where the monitoring device detects the aging of the insulating layer, and then feeds information back to staff for timely rush repair.

Compared with the prior art, the invention provides a power grid line monitoring device and a monitoring method, which have the following beneficial effects:

1. according to the power grid line monitoring device, when workers observe that a problem of ageing of a cable insulating layer exists in a feedback video, a lifting rod is controlled by a PLC (programmable logic controller) to enable a material belt roller on a connecting plate to be tightly attached to the cable, the output end of a motor drives a fourth gear to rotate, the rotating fourth gear drives a first annular rack in meshed connection to drive a third gear to rotate, the rotating third gear sequentially transmits rotating force to a half-moon gear plate through a second gear and the first gear, the rotating half-moon gear plate drives a roller shaft seat to rotate, so that an insulating belt on the material belt roller is wound on the cable, temporary rescue is carried out, and accidents are reduced; and when the rush-repair personnel arrive at the site, the objective insulating tape can directly draw attention of the rush-repair personnel, so that the early-stage investigation time is shortened.

2. According to the power grid line monitoring device, during the working period of the fan, the fan conveys air into the air cavity in the chute seat through the air pipe, so that on one hand, the air pressure in the air cavity is ensured, on the other hand, redundant air sequentially enters the hollow shaft, the circular seat and the side guard plate through the second air inlet hole, then is sprayed out through the air nozzle, and the working surface of the air nozzle faces the cable, so that the cable is sprayed;

3. this electric wire netting circuit monitoring devices, at fan during operation, outside air gets into in the box, and the air that flows drives the turbine and rotates, and pivoted turbine passes through the back shaft with rotatory power and gives the flabellum, and rotatory flabellum and the reflector panel on the flabellum can drive the birds of staying on the cable.

Drawings

Fig. 1 is a schematic structural diagram of a power grid line monitoring device according to the present invention;

fig. 2 is a schematic diagram of a second view angle structure of a power grid line monitoring device according to the present invention;

fig. 3 is a schematic diagram of the internal structure of a monitoring box of the power grid line monitoring device according to the present invention;

fig. 4 is a schematic structural diagram of a portion a in fig. 2 of a power grid line monitoring device according to the present invention;

fig. 5 is a schematic structural diagram of a portion B in fig. 2 of a power grid line monitoring device according to the present invention;

fig. 6 is a schematic diagram of a roller seat structure of a power grid line monitoring device according to the present invention;

fig. 7 is a schematic diagram of an explosion structure of an arc plate of the power grid line monitoring device according to the present invention;

fig. 8 is a schematic diagram of the internal structure of a gear box of the power grid line monitoring device according to the present invention.

In the figure: 1. a base; 2. a monitoring box; 201. a case; 202. an L-shaped partition; 203. a first air inlet; 3. a splice plate; 4. a half moon gear plate; 5. a roller shaft seat; 501. a second air inlet; 502. a hollow shaft; 503. a circular seat; 504. a side guard plate; 505. a material rod; 506. a limiting plate; 6. support legs; 7. an arc-shaped plate; 8. a first gear; 9. a second gear; 10. a third gear; 11. an annular rack; 12. a motor; 13. a fourth gear; 14. a material belt roller; 15. a magic tape mother layer; 16. a magic tape sub-layer; 17. a clamping wheel; 18. a PLC controller; 19. an electric cradle head; 20. monitoring a camera; 21. an infrared temperature sensor; 22. a blower; 23. a chute seat; 2301. an air chamber; 24. an air inlet pipe; 25. a rubber wheel; 26. a tuyere; 27. a support shaft; 28. a turbine; 29. a fan blade; 30. a light reflecting plate; 31. a gear box; 32. a fifth gear; 33. a straight rack; 34. a clamping rod; 35. a lifting rod; 36. a brush.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Examples

Referring to fig. 1-8, a power grid line monitoring device includes a base 1, a monitoring box 2 is fixedly installed on the base 1, and further includes: the two symmetrically arranged supporting legs 6 are fixedly arranged below the base 1, and the arc-shaped plates 7 are fixedly arranged at the lower ends of the supporting legs 6.

Referring to fig. 1, 2 and 7, further, the female layer 15 of magic subsides is fixed to the lower surface of the arc 7, the female layer 15 of magic subsides is last to paste the sub-layer 16 of magic subsides, and the one side that the sub-layer 16 of magic was kept away from the female layer 15 of magic subsides is fixed to install the brush 36, therefore, when base 1 removes on the cable, the dust that adheres to on the cable can be clear away to the brush 36, lightens the load of cable.

The connecting plate 3 is fixedly arranged below the base 1, specifically, referring to fig. 1, a lifting rod 35 is fixedly arranged between the base 1 and the connecting plate 3, and can drive the connecting plate 3 to longitudinally displace, and it is noted that the lifting rod 35 adopts a dragon flying gas spring. The connecting plate 3 is fixedly provided with a chute seat 23, openings are formed in the connecting plate 3 and the chute seat 23, so that a cable can be conveniently clamped into the connecting plate 3, a half-moon gear plate 4 is slidably arranged in the chute seat 23, a roller shaft seat 5 is rotatably arranged on the half-moon gear plate 4, and a material belt roller 14 is movably arranged on the roller shaft seat 5; the joint plate 3 is fixedly provided with a driving part for driving the half-moon gear plate 4 to slide.

Referring to fig. 4 and 6, it should be noted that the roll shaft seat 5 includes a hollow shaft 502 fixedly installed with the crescent gear plate 4, a circular seat 503 is rotatably installed on the hollow shaft 502, a side guard plate 504 is integrally formed on the circular seat 503, a material rod 505 for placing the material belt roller 14 is coaxially installed on the circular seat 503, and a limiting plate 506 is screwed on an end portion of the material rod 505, so as to reduce shaking of the material belt roller 14.

A tape-like insulating material that can temporarily wrap the cable insulation is wound around the tape roller 14.

When the base 1 moves on the cable, the monitoring box 2 on the base 1 detects part of the aged insulating layer, the material belt roller 14 on the connecting plate 3 can be tightly attached to the cable by driving the lifting rod 35, and the driving part controls the material belt roller 14 to wind the insulating belt on the cable insulating layer, so that temporary rescue is performed.

The insulating tape on the tape roll 14 can be designed as a break point, and can be automatically torn off without cutting when the base 1 continues to advance.

Referring to fig. 1 and 2, the driving part in this embodiment is further optimized.

The driving section includes: the first gear 8 and the second gear 9 are symmetrically arranged, the first gear 8 and the second gear 9 are rotatably arranged on the joint plate 3, the first gear 8 is in meshed connection with the second gear 9, and the first gear 8 is in meshed connection with the half-moon gear plate 4; the third gear 10 is rotatably arranged on the joint plate 3, the third gear 10 is in meshed connection with the second gears 9 on two sides, and the third gear 10 is fixedly provided with a first annular rack 11; the motor 12 is fixedly arranged on the joint plate 3, the output end of the motor 12 is fixedly provided with a fourth gear 13, and the fourth gear 13 is in meshed connection with the first annular rack 11.

During the operation of the motor 12, the output end of the motor 12 drives the fourth gear 13 to rotate, the rotating fourth gear 13 drives the first annular rack 11 in meshed connection to drive the third gear 10 to rotate, the rotating third gear 10 sequentially transmits the rotating force to the half-moon gear plate 4 through the second gear 9 and the first gear 8, the rotating half-moon gear plate 4 drives the roller shaft seat 5 to rotate, and the insulating tape on the tape roller 14 is wound on the cable.

Referring to fig. 1, 2 and 3, further, the monitoring box 2 includes a box 201, an L-shaped partition 202 is fixedly installed in the box 201, a PLC controller 18 is fixedly installed on the inner side of the L-shaped partition 202, an electric cradle head 19 is fixedly installed on the base 1, a monitoring camera 20 is installed at the moving end of the electric cradle head 19, an infrared temperature sensor 21 is provided on the front side of the monitoring camera 20, and the electric cradle head 19, the monitoring camera 20 and the infrared temperature sensor 21 are all electrically connected with the PLC controller 18.

The electric cradle head 19 can drive the monitoring camera 20 to rotate at any angle, so that monitoring dead angles are reduced, the monitoring camera 20 converts acquired power grid line video signals and power grid line infrared temperature signals acquired by the infrared temperature sensor 21 into data signals and transmits the data signals to the PLC 18, and the PLC 18 is provided with a wireless module so that workers can control and transmit the signals at a remote end.

Referring to fig. 5 and 6, further, an air cavity 2301 is reserved between the chute seat 23 and the half-moon gear plate 4, a rubber wheel 25 is mounted on one surface of the half-moon gear plate 4 located in the chute seat 23 through bolts, and the rubber wheel 25 abuts against the inner wall of the chute seat 23.

The air cavity 2301 in the chute seat 23 is filled with air, and the pressure of the air tightly clings the rubber wheel 25 to the inner wall of the chute seat 23, so that the direct contact between the chute seat 23 and the half-moon gear plate 4 is reduced, and the transmission efficiency of the rotation of the half-moon gear plate 4 in the chute seat 23 is improved.

In general, when monitoring the line of the power grid, the monitoring camera 20 converts the acquired video signal of the power grid line and the acquired infrared temperature signal of the power grid line, which are acquired by the infrared temperature sensor 21, into data signals and transmits the data signals to the PLC 18, the PLC 18 carries a wireless module to facilitate the control and signal transmission of a worker at a remote end, when the worker observes that the problem of ageing of a cable insulating layer exists in the fed-back video, the worker controls the lifting rod 35 to tightly cling the material belt roller 14 on the connecting plate 3 to the cable through the PLC 18, the output end of the motor 12 drives the fourth gear 13 to rotate, the rotating fourth gear 13 drives the meshed first annular rack 11 to drive the third gear 10 to rotate, the rotating third gear 10 sequentially transmits the rotating force to the half-moon gear plate 4 through the second gear 9 and the first gear 8, the rotating half-moon gear plate 4 drives the roller shaft seat 5 to rotate, so that the insulating belt on the material belt roller 14 is wound on the cable to temporarily rescue, and accidents are reduced.

Examples

Referring to fig. 1 to 8, basically the same as in embodiment 1, the entire technical solution is further optimized on the basis of embodiment 1.

When winding the aged insulation layer, dust originally attached to the cable may cause a problem that the insulation tape is not wound tightly. Referring to fig. 1, 2 and 3, the power grid line monitoring device in the present embodiment further includes: the fan 22 is fixedly installed in the box 201, the first air inlet hole 203 is formed in the box 201, the filter screen is installed in the box 201 through bolts and covers the first air inlet hole 203, air adsorbed by the fan 22 is filtered, and blocking of the fan 22 is reduced. An air inlet pipe 24 is fixedly connected between the output end of the fan 22 and the chute seat 23.

Referring to fig. 6, further, a second air inlet 501 is formed in the roller seat 5, the second air inlet 501 extends to the lower surface of the half-moon gear plate 4, and a tuyere 26 communicating with the second air inlet 501 is fixedly installed on the roller seat 5.

During operation of the fan 22, the fan 22 conveys air into the air cavity 2301 in the chute seat 23 through the air inlet pipe 24, on one hand, air pressure in the air cavity 2301 is ensured, and on the other hand, redundant air sequentially enters the hollow shaft 502, the circular seat 503 and the side guard plate 504 through the second air inlet hole 501, and then is sprayed out through the air nozzle 26, and the working surface of the air nozzle 26 faces the cable, so that blowing of the cable is realized.

Referring to fig. 1, 2 and 3, further, a supporting shaft 27 is rotatably installed in the case 201, a turbine 28 is fixedly installed at the lower end of the supporting shaft 27, a fan blade 29 is installed at the upper end of the supporting shaft 27 penetrating through the case 201, and a light reflecting plate 30 is fixedly installed on the fan blade 29.

When the fan 22 works, external air enters the box 201, flowing air drives the turbine 28 to rotate, the rotating turbine 28 transmits rotating force to the fan blades 29 through the supporting shaft 27, and birds which are stopped on the cables can be driven by the rotating fan blades 29 and the reflecting plates 30 on the fan blades 29.

Examples

Referring to fig. 1 to 8, basically the same as embodiment 2, the whole technical scheme is further optimized on the basis of embodiment 2.

In order to facilitate the installation of the base 1, the convenience of monitoring is more facilitated. Referring to fig. 1, 2 and 8, the power grid line monitoring device in the present embodiment further includes: the gear box 31 is fixedly arranged on two sides below the base 1, the fifth gear 32 is rotatably arranged in the gear box 31 through the torsion spring, the straight racks 33 are connected to two sides of the fifth gear 32 in a meshed mode, the clamping rods 34 are fixedly arranged on the straight racks 33, and the lower ends of the clamping rods 34 penetrate through the gear box 31 and are provided with the clamping wheels 17.

When the base 1 is installed, the clamping rods 34 on two sides are pulled outwards to clamp the cable between the two clamping wheels 17, and the reset fifth gear 32 resets to drive the clamping rods 34 on two sides to slide inwards under the elastic potential energy of the torsion spring until the clamping wheels 17 clamp the cable.

A motor for driving the holding wheel 17 to rotate is mounted in the gear box 31, and the driving device advances.

A power grid line monitoring method comprises the following operation steps:

step 1: clamping the monitoring device on the cable;

step 2: the monitoring device can monitor the heating condition of the power grid insulating block and the aging condition of the cable surface insulating layer during the inspection;

In step 1, the cable is clamped between the two clamping wheels 17 by pulling the clamping rods 34 on both sides outwards, under the elastic potential energy of the torsion spring, the reset fifth gear 32 resets and drives the clamping rods 34 on both sides to slide inwards until the clamping wheels 17 clamp the cable, in step 2, the monitoring camera 20 converts the acquired power grid line video signal and the acquired power grid line infrared temperature signal acquired by the infrared temperature sensor 21 into data signals and transmits the data signals to the PLC controller 18, and the PLC controller 18 is provided with a wireless module so as to facilitate the control and signal transmission of a worker at a remote end; in step 3, the lifting rod 35 is controlled by the PLC controller 18 to make the material belt roller 14 on the connection plate 3 tightly attached to the cable, the output end of the motor 12 drives the fourth gear 13 to rotate, the rotating fourth gear 13 drives the first annular rack 11 in meshed connection to drive the third gear 10 to rotate, the rotating third gear 10 sequentially transmits the rotating force to the half-moon gear plate 4 through the second gear 9 and the first gear 8, the rotating half-moon gear plate 4 drives the roller shaft seat 5 to rotate, so that the insulating belt on the material belt roller 14 is wound on the cable, temporary rescue is performed, and accidents are reduced.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a power grid line monitoring devices, includes base (1), fixed mounting has monitoring case (2) on base (1), its characterized in that still includes:

two symmetrically arranged supporting legs (6) are fixedly arranged below the base (1), and an arc-shaped plate (7) is fixedly arranged at the lower end of each supporting leg (6);

the connecting plate (3) is fixedly arranged below the base (1), the connecting plate (3) is fixedly provided with a chute seat (23), a half-moon gear plate (4) is slidably arranged in the chute seat (23), a roller shaft seat (5) is rotatably arranged on the half-moon gear plate (4), and a material belt roller (14) is movably arranged on the roller shaft seat (5);

the connecting plate (3) is fixedly provided with a driving part for driving the half-moon gear plate (4) to slide.

2. The power grid line monitoring device according to claim 1, wherein the monitoring box (2) comprises a box body (201), an L-shaped partition plate (202) is fixedly installed in the box body (201), a PLC (programmable logic controller) (18) is fixedly installed on the inner side of the L-shaped partition plate (202), an electric cradle head (19) is fixedly installed on the base (1), a monitoring camera (20) is installed at the movable end of the electric cradle head (19), an infrared temperature sensor (21) is arranged on the front side of the monitoring camera (20), and the electric cradle head (19), the monitoring camera (20) and the infrared temperature sensor (21) are electrically connected with the PLC (18).

3. The power grid line monitoring device according to claim 2, wherein a magic tape female layer (15) is fixedly arranged on the lower surface of the arc-shaped plate (7), a magic tape sub-layer (16) is stuck on the magic tape female layer (15), and a hairbrush (36) is fixedly arranged on one surface, far away from the magic tape female layer (15), of the magic tape sub-layer (16).

4. A grid line monitoring device in accordance with claim 3, wherein the drive section comprises:

the device comprises two symmetrically arranged first gears (8) and second gears (9), wherein the first gears (8) and the second gears (9) are rotatably arranged on a joint plate (3), the first gears (8) are in meshed connection with the second gears (9), and the first gears (8) are in meshed connection with a half-moon gear plate (4);

a third gear (10) rotatably mounted on the joint plate (3), wherein the third gear (10) is in meshed connection with the second gears (9) on two sides, and a first annular rack (11) is fixedly mounted on the third gear (10);

and a motor (12) fixedly arranged on the joint plate (3), wherein a fourth gear (13) is fixedly arranged at the output end of the motor (12), and the fourth gear (13) is in meshed connection with the first annular rack (11).

5. The power grid line monitoring device according to claim 4, wherein an air cavity (2301) is reserved between the chute seat (23) and the half-moon gear plate (4), a rubber wheel (25) is mounted on one surface of the half-moon gear plate (4) located in the chute seat (23) through bolts, and the rubber wheel (25) abuts against the inner wall of the chute seat (23).

6. The grid line monitoring device of claim 5, further comprising:

the novel air inlet box is characterized in that a fan (22) is fixedly installed in the box body (201), a first air inlet hole (203) is formed in the box body (201), and an air inlet pipe (24) is fixedly connected between the output end of the fan (22) and the chute seat (23).

7. The power grid line monitoring device according to claim 6, wherein a second air inlet hole (501) is formed in the roll shaft seat (5), the second air inlet hole (501) extends to the lower surface of the half-moon gear plate (4), and a tuyere (26) communicated with the second air inlet hole (501) is fixedly installed on the roll shaft seat (5).

8. The power grid line monitoring device according to claim 7, wherein a supporting shaft (27) is rotatably installed in the box body (201), a turbine (28) is fixedly installed at the lower end of the supporting shaft (27), the upper end of the supporting shaft (27) penetrates through the box body (201) and is provided with a fan blade (29), and a reflecting plate (30) is fixedly installed on the fan blade (29).

9. The grid line monitoring device of claim 1, further comprising:

the utility model discloses a gear box, including base (1), gear box (31) are installed to both sides fixed mounting below base (1), install fifth gear (32) through torsional spring rotation in gear box (31), the both sides meshing of fifth gear (32) is connected with straight-going rack (33), fixed mounting has clamping lever (34) on straight-going rack (33), the lower extreme of clamping lever (34) runs through out gear box (31) and installs pinch roller (17).

10. A method of grid line monitoring employing a grid line monitoring device according to any one of claims 1-9, characterized by the following steps:

step 1: clamping the monitoring device on the cable;