A risk detection device for power transmission channels

Abstract

This invention relates to the field of power transmission channel operation and maintenance protection technology, specifically a risk detection device for power transmission channels. The device includes a detection component installed on the top of a power tower, with a mounting platform at the bottom of the component. A rack, gear, and motor drive assembly are mounted on the outside of the mounting platform. The rack is connected to the mounting platform via an electromagnet. When the rack moves upward, the mounting platform connects to the top of the rack; when the rack moves downward, the mounting platform connects to the bottom of the rack. This increases the stroke of the mounting platform and the detection component. By changing the connection position between the mounting platform and the long and short racks, this invention increases the stroke of the detection component. Compared with existing electric push rods of the same length, this invention can nearly double the stroke of the detection component and can operate bidirectionally, monitoring both the upper and lower parts of the cable, thus providing a wider effective monitoring range.

Description

Technical Field

[0001] This invention relates to the field of power transmission channel operation and maintenance protection technology, specifically a risk detection device for power transmission channels. Background Technology

[0002] A power transmission corridor is a spatial area in a power system consisting of high-voltage transmission lines and a surrounding protected corridor. It is a crucial component for transmitting electrical energy from power plants to load centers over long distances. Transmission lines can be classified into overhead transmission lines and underground cable lines according to their structure. Overhead transmission lines dominate ultra-high voltage and extra-high voltage power transmission due to their lower cost and ease of maintenance.

[0003] Because power transmission channels often stretch for hundreds or even thousands of kilometers, traversing complex geographical environments such as mountains, valleys, and forests, they are constantly exposed to natural disasters such as wildfires, icing, lightning strikes, and strong winds. They also face human-induced damage such as illegal construction, foreign objects snagging the lines, tree growth, and crane collisions with the lines. The operational risks are diverse and highly concealed, posing a constant and significant challenge to safe operation and maintenance. Many towers are equipped with visual micro-capture devices for all-weather image monitoring and foreign object identification. Various precision sensors are installed on the towers themselves to continuously monitor parameters such as conductor icing thickness, fitting temperature, sag, wind deflection, and tower tilt in real time. However, there are still areas for improvement in actual operation.

[0004] The detection device is fixed on the power tower, which creates blind spots in the monitoring. In order to reduce the blind spots of the detection device, existing technologies use lifting equipment, such as electric push rods or robotic arms. Electric push rods are inexpensive, but they can only complete unidirectional linear movement and the displacement distance will not exceed their own length. Therefore, the displacement distance of the detection device is limited. Robotic arms can move in multiple directions, but they are expensive and difficult to popularize in practical applications. Moreover, regardless of the type of lifting equipment, it still has a large cross-section after being stored. When installed on a power tower, it is more likely to encounter strong winds and be subjected to greater stress, which may cause the connection between the lifting equipment and the power tower to loosen or be damaged. This requires staff to climb up to repair and reinforce it, which is quite cumbersome. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a risk detection device for power transmission channels, which solves the problems of limited displacement distance of lifting equipment and large force-bearing area, resulting in unstable installation in the prior art.

[0006] The technical solution of this invention is as follows: A risk detection device for a power transmission channel includes a detection component installed on the top of a power tower, a mounting platform at the bottom of the detection component, and a rack, gear, and motor drive assembly mounted on the outside of the mounting platform. The rack and the mounting platform are connected by an electromagnet. When the rack moves upward, the mounting platform connects to the top of the rack, and when the rack moves downward, the mounting platform connects to the bottom of the rack, thereby increasing the stroke of the mounting platform and the detection component. The rack includes a long rack and a short rack. During operation, the two are fixedly connected in the middle and hinged on the outside. In case of emergency, the fixed connection in the middle is released, and the long rack deflects with the wind, reducing the force-bearing area.

[0007] Furthermore, a track frame is fixedly installed on the top of the power tower, and a drive trolley is movably installed on the outside of the track frame. A rack is movably installed on the inside of the drive trolley. Trapezoidal blocks are symmetrically arranged on the outside of both the long and short racks, and a groove is provided on the inside of the drive trolley to slide and engage with the trapezoidal blocks.

[0008] Furthermore, a drive motor is fixedly installed on the top of the drive trolley, and a transmission gear is fixedly installed at the output end of the drive motor, which meshes with a long rack.

[0009] Furthermore, the mounting platform has a main storage slot at its end, and a main fixing block is slidably installed inside the main storage slot. The top of the short rack and the outer side of the bottom of the long rack are both provided with main insertion slots. A main electromagnet for attracting the main fixing block into the main insertion slot is fixedly installed inside the main insertion slot.

[0010] Furthermore, a main spring is fixedly installed between the main fixing block and the main storage slot, and the main spring is used to drive the main fixing block to disengage from the main insertion slot.

[0011] Furthermore, two auxiliary storage slots are symmetrically provided on the outer side of the mounting platform, and auxiliary fixing blocks are slidably installed on the inner side of the auxiliary storage slots. Two auxiliary insertion slots are symmetrically provided on the inner side of the drive trolley, and auxiliary electromagnets for attracting auxiliary fixing blocks into the auxiliary insertion slots are fixedly installed on the inner side of the auxiliary insertion slots.

[0012] Furthermore, a secondary spring is fixedly installed between the secondary fixing block and the secondary storage slot. The secondary spring is used to drive the secondary fixing block to disengage from the secondary insertion slot.

[0013] Furthermore, two hinged connecting rods are symmetrically and rotatably mounted on the outer side of the long rack, and the hinged connecting rods are fixedly mounted on the outer side of the short rack. The long rack and the short rack are hinged together by the two hinged connecting rods.

[0014] Furthermore, a mounting bracket is fixedly installed on the top of the short rack, and two electric push rods are symmetrically fixedly installed on the bottom of the mounting bracket. The telescopic ends of the electric push rods slide through the short rack, and a connecting hole is opened on the top of the long rack to engage with the telescopic ends of the electric push rods. The long rack and the short rack are fixedly connected by the two sets of electric push rods and the connecting hole.

[0015] Furthermore, the top of the connecting hole is provided with an outwardly flared chamfer to facilitate the insertion of the telescopic end of the electric push rod into the connecting hole.

[0016] Furthermore, the top of the long rack has an arc-shaped surface on the side away from the teeth. When the long rack deflects with the wind, it will not rigidly block the short rack. The teeth are not damaged, and it does not affect the sequential meshing of the long rack and the short rack with the transmission gear.

[0017] The beneficial effects of this invention are as follows: By changing the connection position between the mounting platform and the long and short racks, the stroke of the detection component is increased. Compared with the electric push rod of the prior art, the stroke of the detection component of the present invention can be increased by nearly two times for the same length, and it can be bidirectional to monitor the upper and lower parts of the cable, thus providing a wider effective monitoring range. In case of emergency evacuation during windy weather, the drive trolley moves the toothed side of the long rack to be perpendicular to the wind direction and facing the wind. The short rack is connected to the mounting platform, and the mounting platform is connected to the drive trolley. The telescopic end of the electric push rod shortens and disengages from the connection hole. The long rack deflects with the wind, greatly reducing the stress area and reducing the possibility of wind damaging the device and loosening the connection between the track frame and the power tower. This extends the maintenance cycle of the device and reduces the labor intensity of the staff. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the overall structure of a risk detection device for a power transmission channel provided by the present invention; Figure 2 A schematic diagram of the drive trolley connection for a risk detection device for a power transmission channel provided by the present invention; Figure 3 A schematic diagram of the electric push rod connection of a risk detection device for a power transmission channel provided by the present invention; Figure 4 A schematic diagram of the top structure of a long rack in a risk detection device for a power transmission channel provided by the present invention; Figure 5 A schematic diagram of a short rack structure for a risk detection device for power transmission channels provided by the present invention; Figure 6 This is a schematic diagram of the internal structure of the mounting platform for a risk detection device for a power transmission channel provided by the present invention.

[0020] In the picture: 1. Track frame; 2. Drive trolley; 3. Drive motor; 4. Transmission gear; 5. Long rack; 6. Short rack; 7. Mounting platform; 8. Secondary fixing block; 9. Secondary storage slot; 10. Secondary spring; 11. Main storage slot; 12. Main spring; 13. Main fixing block; 14. Hinge connecting rod; 15. Main insertion slot; 16. Main electromagnet; 17. Secondary insertion slot; 18. Secondary electromagnet; 19. Connecting hole; 20. Outward chamfer; 21. Mounting bracket; 22. Electric push rod; 23. Detection assembly. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0022] like Figure 1 As shown, this embodiment of the invention provides a risk detection device for power transmission channels, including a detection component 23 installed on the top of the power tower. The detection component 23 includes a camera mechanism, an infrared monitoring mechanism, a wind speed and direction detection mechanism, etc., which can be added or removed by the staff as needed. A mounting platform 7 is provided at the bottom of the detection component 23. A rack, gear, and motor transmission assembly are provided on the outside of the mounting platform 7. The rack and the mounting platform 7 are connected by an electromagnet. When the rack moves upward, the mounting platform 7 connects with the top of the rack. When the rack moves downward, the mounting platform 7 connects with the bottom of the rack, thereby increasing the stroke of the mounting platform 7 and the detection component 23.

[0023] Specifically, such as Figure 1 As shown, a track frame 1 is fixedly installed on the top of the power tower. A drive trolley 2 is movably installed on the outside of the track frame 1. A rack is movably installed on the inside of the drive trolley 2. Trapezoidal blocks are symmetrically arranged on the outside of the long rack 5 and the short rack 6. A groove is opened on the inside of the drive trolley 2 to slide and engage with the trapezoidal blocks.

[0024] In this embodiment, the driving trolley 2 drives the detection component 23 to move along the track frame 1, increasing the monitoring angle and reducing the monitoring blind spots.

[0025] Specifically, such as Figure 2 As shown, a drive motor 3 is fixedly installed on the top of the drive trolley 2, and a transmission gear 4 is fixedly installed at the output end of the drive motor 3. The transmission gear 4 meshes with a long rack 5.

[0026] Specifically, such as Figure 5 , Figure 6As shown, the mounting platform 7 has a main storage groove 11 at its end, and a main fixing block 13 is slidably installed inside the main storage groove 11. The top of the short rack 6 and the outer side of the bottom of the long rack 5 are both provided with main insertion grooves 15. A main electromagnet 16 for attracting the main fixing block 13 into the main insertion groove 15 is fixedly installed inside the main insertion groove 15.

[0027] Specifically, such as Figure 6 As shown, a main spring 12 is fixedly installed between the main fixing block 13 and the main storage groove 11. The main spring 12 is used to drive the main fixing block 13 to disengage from the main insertion groove 15.

[0028] In this embodiment, the drive motor 3 drives the long rack 5 and the short rack 6 to move through the transmission gear 4, so that the main storage slot 11 and the main insertion slot 15 are flush. The main electromagnet 16 is energized and attracts the main fixing block 13 into the main insertion slot 15. Half of the main fixing block 13 is located in the main insertion slot 15 and half is located in the main storage slot 11. The main spring 12 is stretched to realize the connection between the short rack 6 and the mounting platform 7.

[0029] Specifically, such as Figure 2 , Figure 6 As shown, two auxiliary storage slots 9 are symmetrically opened on the outer side of the mounting platform 7, and an auxiliary fixing block 8 is slidably installed on the inner side of the auxiliary storage slot 9. Two auxiliary insertion slots 17 are symmetrically opened on the inner side of the driving trolley 2, and an auxiliary electromagnet 18 for adsorbing the auxiliary fixing block 8 into the auxiliary insertion slot 17 is fixedly installed on the inner side of the auxiliary insertion slot 17.

[0030] Specifically, such as Figure 6 As shown, a secondary spring 10 is fixedly installed between the secondary fixing block 8 and the secondary storage groove 9. The secondary spring 10 is used to drive the secondary fixing block 8 to disengage from the secondary insertion groove 17.

[0031] In this embodiment, the drive motor 3 drives the long rack 5 and the short rack 6 to move through the transmission gear 4, so that the secondary insertion slot 17 and the secondary storage slot 9 are flush. The secondary electromagnet 18 is energized, attracting the secondary fixing block 8 into the secondary insertion slot 17. Half of the secondary fixing block 8 is located in the secondary insertion slot 17 and half is located in the secondary storage slot 9. The secondary spring 10 is stretched, realizing the connection between the drive trolley 2 and the mounting platform 7.

[0032] Specifically, such as Figure 2 , Figure 3 As shown, the rack includes a long rack 5 and a short rack 6. During operation, the two are fixedly connected in the middle and hinged on the outside. In case of emergency, the fixed connection in the middle is released, and the long rack 5 deflects with the wind, reducing the force-bearing area.

[0033] Specifically, such as Figure 3As shown, two hinged connecting rods 14 are symmetrically and rotatably mounted on the outer side of the long rack 5. The hinged connecting rods 14 are fixedly mounted on the outer side of the short rack 6. The long rack 5 and the short rack 6 are hinged together by the two hinged connecting rods 14.

[0034] Specifically, such as Figure 2 , Figure 4 As shown, a mounting bracket 21 is fixedly installed on the top of the short rack 6, and two electric push rods 22 are symmetrically fixedly installed on the bottom of the mounting bracket 21. The telescopic ends of the electric push rods 22 slide through the short rack 6. The top of the long rack 5 is provided with a connecting hole 19 that is inserted into the telescopic end of the electric push rod 22. The top of the connecting hole 19 is provided with an outwardly flared chamfer 20 to facilitate the insertion of the telescopic end of the electric push rod 22 into the connecting hole 19. The long rack 5 and the short rack 6 are fixedly connected by the two sets of electric push rods 22 and the connecting hole 19.

[0035] In this embodiment, when emergency evacuation is required during windy weather, the drive trolley 2 moves the toothed side of the long rack 5 to be perpendicular to the wind direction and facing the wind, according to the wind direction. The short rack 6 is connected to the mounting platform 7, and the mounting platform 7 is connected to the drive trolley 2. The telescopic end of the electric push rod 22 is shortened and disengaged from the connection hole 19. The long rack 5 deflects with the wind, greatly reducing the force-bearing area, reducing the possibility of wind damaging the device and loosening the connection between the track frame 1 and the power tower, extending the maintenance cycle of the device, and reducing the labor intensity of the staff. Specifically, such as Figure 4 As shown, the top of the long rack 5 has an arc-shaped surface on the side away from the teeth. When the long rack 5 deflects with the wind, it will not rigidly block the short rack 6. The teeth are not damaged, and it does not affect the long rack 5 and the short rack 6 from meshing with the transmission gear 4 in sequence.

[0036] Specifically, the drive trolley 2, drive motor 3, main electromagnet 16, auxiliary electromagnet 18 and detection component 23 are electrically connected through a controller.

[0037] Specific working methods: When the detection component 23 moves upward, the main electromagnet 16 is energized, attracting the main fixing block 13 into the main insertion slot 15. Half of the main fixing block 13 is located in the main insertion slot 15, and the other half is located in the main storage slot 11. The main spring 12 is stretched, realizing the connection between the short rack 6 and the mounting platform 7. The drive motor 3 rotates, which drives the long rack 5 and the short rack 6 to move upward through the transmission gear 4, thereby driving the detection component 23 to move upward.

[0038] The detection component 23 moves down, the drive motor 3 rotates in the opposite direction, and drives the long rack 5 and short rack 6 to move down through the transmission gear 4, so that the auxiliary insertion slot 17 and the auxiliary storage slot 9 are flush. The auxiliary electromagnet 18 is energized, and the auxiliary fixing block 8 is attracted into the auxiliary insertion slot 17. Half of the auxiliary fixing block 8 is located in the auxiliary insertion slot 17 and half is located in the auxiliary storage slot 9. The auxiliary spring 10 is stretched, realizing the connection between the drive trolley 2 and the mounting platform 7. The main electromagnet 16 is de-energized, the main spring 12 pulls the main fixing block 13 to disengage from the main insertion slot 15, and the long rack 5 and short rack 6 move up, so that the outer side of the main insertion slot 15 of the long rack 5 is flush with the main storage slot 11. The connection between the long rack 5 and the mounting platform 7 is realized by following the connection steps of the short rack 6 and the mounting platform 7, which will not be described in detail. When the secondary electromagnet 18 is de-energized, the secondary spring 10 causes the secondary fixing block 8 to disengage from the secondary insertion slot 17, and the drive motor 3 rotates in the opposite direction. Through the transmission gear 4, it drives the long rack 5 and the short rack 6 to move downward, thereby driving the detection component 23 to move downward. By changing the connection position between the mounting platform 7 and the long rack 5 and the short rack 6, the stroke of the detection component 23 is increased. Compared with the electric push rod of the prior art, the stroke of the detection component 23 can be increased by nearly two times for the same length, and it can be bidirectional, monitoring the upper and lower parts of the cable, with a wider effective monitoring range.

[0039] When emergency evacuation is required in windy weather, the drive trolley 2 moves the toothed side of the long rack 5 to be perpendicular to the wind direction and facing the wind according to the wind direction. The short rack 6 is connected to the mounting platform 7, and the mounting platform 7 is connected to the drive trolley 2. The telescopic end of the electric push rod 22 is shortened and disengaged from the connection hole 19. The long rack 5 deflects with the wind, greatly reducing the force-bearing area, reducing the possibility of wind damaging the device and loosening the connection between the track frame 1 and the power tower, extending the maintenance cycle of the device, and reducing the labor intensity of the staff. When the wind force drops to the threshold, the telescopic end of the electric push rod 22 extends and is inserted into the connection hole 19 to connect the long rack 5 and the short rack 6.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A risk detection device for a power transmission channel, comprising a detection component (23) installed on the top of a power tower, a mounting platform (7) provided at the bottom of the detection component (23), and a rack, gear, and motor drive assembly provided on the outside of the mounting platform (7), characterized in that: The rack and the mounting platform (7) are connected by an electromagnet. When the rack moves up, the mounting platform (7) is connected to the top of the rack. When the rack moves down, the mounting platform (7) is connected to the bottom of the rack, which increases the stroke of the mounting platform (7) and the detection component (23). The rack includes a long rack (5) and a short rack (6). During operation, the two are fixedly connected in the middle and hinged on the outside. In case of emergency, the fixed connection in the middle is released, and the long rack (5) deflects with the wind, reducing the area of ​​force application.

2. The risk detection device for a power transmission channel as described in claim 1, characterized in that: The top of the power tower is fixedly equipped with a track frame (1), and a drive trolley (2) is movably installed on the outside of the track frame (1). A rack is movably installed on the inside of the drive trolley (2). Trapezoidal blocks are symmetrically arranged on the outside of the long rack (5) and the short rack (6). A groove is opened on the inside of the drive trolley (2) to slide and engage with the trapezoidal blocks.

3. The risk detection device for a power transmission channel as described in claim 2, characterized in that: The drive trolley (2) is fixedly mounted with a drive motor (3) on its top. A transmission gear (4) is fixedly mounted on the output end of the drive motor (3). The transmission gear (4) meshes with a long rack (5).

4. The risk detection device for a power transmission channel as described in claim 1, characterized in that: The mounting platform (7) has a main storage groove (11) at its end. A main fixing block (13) is slidably installed inside the main storage groove (11). A main insertion groove (15) is opened on the top of the short rack (6) and the outer side of the bottom of the long rack (5). A main electromagnet (16) for adsorbing the main fixing block (13) into the main insertion groove (15) is fixedly installed inside the main insertion groove (15).

5. A risk detection device for a power transmission channel as described in claim 4, characterized in that: A main spring (12) is fixedly installed between the main fixing block (13) and the main storage groove (11). The main spring (12) is used to drive the main fixing block (13) to disengage from the main insertion groove (15).

6. The risk detection device for a power transmission channel as described in claim 1, characterized in that: The mounting platform (7) has two symmetrical secondary storage slots (9) on its outer side. A secondary fixing block (8) is slidably installed on the inner side of the secondary storage slot (9). The drive trolley (2) has two symmetrical secondary insertion slots (17) on its inner side. A secondary electromagnet (18) for adsorbing the secondary fixing block (8) into the secondary insertion slot (17) is fixedly installed on the inner side of the secondary insertion slot (17).

7. A risk detection device for a power transmission channel as described in claim 6, characterized in that: A secondary spring (10) is fixedly installed between the secondary fixing block (8) and the secondary receiving groove (9). The secondary spring (10) is used to drive the secondary fixing block (8) to disengage from the secondary insertion groove (17).

8. The risk detection device for a power transmission channel as described in claim 1, characterized in that: Two hinged connecting rods (14) are symmetrically rotated on the outer side of the long rack (5). The hinged connecting rods (14) are fixedly installed on the outer side of the short rack (6). The long rack (5) and the short rack (6) are hinged together by the two hinged connecting rods (14).

9. A risk detection device for a power transmission channel as described in claim 1, characterized in that: The short rack (6) is fixedly mounted with a mounting bracket (21) at the top. Two electric push rods (22) are symmetrically fixedly mounted at the bottom of the mounting bracket (21). The telescopic end of the electric push rod (22) slides through the short rack (6). The top of the long rack (5) is provided with a connecting hole (19) that is inserted and matched with the telescopic end of the electric push rod (22). The long rack (5) and the short rack (6) are fixedly connected by the two sets of electric push rods (22) and the connecting hole (19).

10. A risk detection device for a power transmission channel as described in claim 9, characterized in that: The top of the connecting hole (19) is provided with an outward chamfer (20) to facilitate the insertion of the telescopic end of the electric push rod (22) into the connecting hole (19).

11. A risk detection device for a power transmission channel as described in claim 3, characterized in that: The top of the long rack (5) has an arc-shaped surface on the side away from the teeth. When the long rack (5) deflects with the wind, it will not rigidly block the short rack (6). The teeth are not damaged, and it does not affect the long rack (5) and the short rack (6) from meshing with the transmission gear (4) in sequence.

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