High-altitude erected cable and all-weather bird repelling and obstacle removing device thereof

Abstract

The invention relates to the technical field of high-altitude cable protection, in particular to a high-altitude erected cable and an all-weather bird repelling and obstacle removing device thereof.The high-altitude erected cable comprises a conductor, and a refractory fiber belt, a calcined mica tape, an EPR ethylene propylene rubber insulator, a halogen-free low-smoke flame-retardant belt and a sheath are sequentially assembled outside the conductor; metal supporting sleeves are fixedly sleeved on the outer side of the sheath and located on the outer sides of the connecting ends on the two sides. According to the high-altitude erected cable and the all-weather bird repelling and obstacle removing device thereof, by adopting a self-propelled structural design, repelling and obstacle removing can be automatically controlled when dust, impurities, ice and snow and bird flocks are accumulated on the surface of the cable, so that the service life of the cable is greatly prolonged; unmanned automatic maintenance and obstacle removal are adopted, interference and influence of the external environment are avoided, and all-weather operation capacity is achieved; the optical detection probes used for detecting the bending angle of the cable are fixedly assembled at the lower ends of the openings in the two sides of the metal supporting sleeve, durability is high, automatic control can be conducted according to the bending degree of the cable, and operation is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of high-altitude cable protection, and in particular to a high-altitude erected cable and its all-weather bird repelling and obstacle clearing device. Background Art

[0002] ‌Cables are erected at high altitudes mainly to ensure personal safety, reduce grounding resistance, improve power supply reliability and safety, facilitate erection and maintenance, and reduce maintenance costs.

[0003] First of all, ‌ensuring personal safety‌ is one of the important functions of high-altitude erected cables. Wires laid on the ground or at low altitudes are easily touched by people, which may lead to electric shock accidents and even endanger life safety.

[0004] Secondly, ‌reducing grounding resistance‌ is also an important advantage of high-altitude erected cables. Grounding resistance is one of the important factors affecting the operation of the circuit. Excessive grounding resistance will cause the circuit to be unstable and affect power transmission.

[0005] In addition, ‌improving power supply reliability and safety‌ is another important function of high-altitude erected cables. Using overhead cables can greatly reduce the incidence of short-circuit faults, especially flashover faults. The failure rate is 4-6 times lower than that of overhead bare conductors.

[0006] ‌Facilitating erection and maintenance‌ is also a significant advantage of high-altitude erected cables. Overhead cables can be erected on various poles and towers, or can pass through walls or among trees, and installation and maintenance are very convenient.

[0007] During daily use, over time, a large amount of dust and impurities will accumulate on the surface. If not cleaned and maintained regularly, it will affect the service life of the entire high-altitude communication optical cable. Currently, the cleaning and maintenance are mainly carried out manually, with high construction difficulty, dangerous operation process, high professional requirements, and high cost; moreover, during use, there are often a large number of birds standing on the cable, which will greatly increase the deformation degree of the cable and reduce the service life of the cable. Summary of the Invention

[0008] The technical problem to be solved by the present invention is that dust, impurities, and bird flocks on the cable surface, if not cleaned, maintained, and driven away regularly, will affect the service life of the entire overhead cable. Currently, the cleaning and maintenance are difficult, the manual operation process is dangerous, the professional requirements are high, and the cost is high.

[0009] The technical solution adopted by the present invention to solve its technical problems is as follows: An aerial cable includes a conductor, and a refractory fiber tape, a calcined mica tape, an EPR ethylene-propylene rubber insulation, a halogen-free low-smoke flame-retardant tape, and a sheath are sequentially assembled outside the conductor. A metal support sleeve is fixedly sleeved outside the sheath at the outer sides of both connection ends. The two sides of the metal support sleeve have arc-shaped guide plates with an integrally formed downward-bending structure. An electronically controlled self-driven obstacle removal module is arranged outside the metal support sleeve, and an electronically controlled flipping and correcting arm is movably assembled at the lower end outside the metal support sleeve.

[0010] An external limit guide groove extending outward to the arc-shaped guide plate is formed on the arc-shaped surface outside the metal support sleeve.

[0011] Optical detection probes for detecting the bending angle of the cable are fixedly assembled at the lower ends of the openings on both sides of the metal support sleeve.

[0012] The electronically controlled flipping and correcting arm includes a bottom flipping and correcting plate hinged to the lower ends of the openings on both sides of the metal support sleeve and a bottom adjusting strut for controlling the bottom flipping and correcting plate.

[0013] A flipping transition port matching the optical detection probe is formed at the movable connection end on the bottom flipping and correcting plate.

[0014] An all-weather bird repelling and obstacle removal device for an aerial cable includes an electronically controlled self-driven obstacle removal module. The electronically controlled self-driven obstacle removal module includes a split-ring external frame, an electronically controlled telescopic frame installed inside the split-ring external frame, bottom guide wheels, top drive wheels, split arc-shaped guide rails fixedly installed on the side walls of the split-ring external frame, an electronically controlled adjusting ring slidably inserted inside the split arc-shaped guide rails, and electronically controlled flipping obstacle removal blades installed on the inner arc-shaped surface of the electronically controlled adjusting ring.

[0015] The electronically controlled adjusting ring includes a first arc-shaped adjusting frame, a second arc-shaped adjusting frame fixedly installed inside the split arc-shaped guide rails, and a rotation adjusting motor fixedly installed outside the split arc-shaped guide rails.

[0016] The first arc-shaped adjusting frame and the second arc-shaped adjusting frame are fixedly assembled by bolts.

[0017] The electronically controlled flipping obstacle removal blades include lateral mounting seats fixed on the first arc-shaped adjusting frame and the second arc-shaped adjusting frame, external adjusting blades movably installed outside the lateral mounting seats, arc-shaped control racks movably installed inside the first arc-shaped adjusting frame and the second arc-shaped adjusting frame for controlling the external adjusting blades, and bottom-mounted electromagnets installed on the side walls of the second arc-shaped adjusting frame.

[0018] Built-in electric heating wires are fixedly installed inside the external adjusting blades.

[0019] The beneficial effects of the present invention are as follows: (1) An aerial cable and its all-weather bird repelling and obstacle clearing device of the present invention adopt a self-propelled structure design, which can automatically control the repelling and obstacle clearing when dust, impurities, ice and snow, and bird flocks accumulate on the cable surface, thereby greatly extending the service life of the cable; (2) It adopts unmanned automatic maintenance and obstacle clearing, and is not affected by the external environment, enabling it to have the ability to operate all-weather; (3) By fixedly assembling optical detection probes for detecting the bending angle of the cable at the lower ends of both sides of the metal support sleeve, it not only has strong durability, but also can be automatically controlled according to the bending degree of the cable, making the operation more convenient; (4) By movably assembling an electronically controlled flipping and correcting arm at the lower end of the outer side of the metal support sleeve, it can facilitate the smoother switching and movement of the electronically controlled self-propelled obstacle clearing module and reduce the resistance; (5) Using the metal support sleeve to support and daily store the electronically controlled self-propelled obstacle clearing module can not only avoid affecting the cable in the daily state, but also ensure the safety and stability of the obstacle clearing equipment; (6) The electronically controlled self-propelled obstacle clearing module adopts a split structure design, which is convenient for installation and disassembly; (7) By adjusting the gap between the bottom guide wheel, the top drive wheel and the cable in a rotating manner, the adaptation range and transmission efficiency are improved; (8) By adopting a variable angle design, centrifugal scraping or horizontal dust blowing and slag removal can be carried out according to needs, the operation methods are more diverse, and the obstacle clearing ability is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 is the structural schematic diagram of the present invention.

[0022] Figure 2 is the internal structural schematic diagram of the present invention.

[0023] Figure 3 is the structural schematic diagram of the electronically controlled flipping obstacle clearing blade in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present invention will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Figure 1 , Figure 2 and Figure 3 As shown in the figure, a high-altitude cable erection includes a conductor 1. Outside the conductor 1, a refractory fiber tape 2, a calcined mica tape 3, an EPR ethylene propylene rubber insulation 4, a halogen-free low-smoke flame-retardant tape 5, and a sheath 6 are sequentially assembled. On the outside of the sheath 6, metal support sleeves 7 are fixedly sleeved on the outside of both side connection ends. The two sides of the metal support sleeve 7 have arc-shaped guide plates 8 with an integrally formed downward-bending structure. An electronically controlled self-driving obstacle-clearing module 9 is arranged on the outside of the metal support sleeve 7, and an electronically controlled flipping and correcting arm 10 is movably assembled at the lower end of the outside of the metal support sleeve 7.

[0027] Working principle: When there is snow accumulation, dust collection, or a flock of birds on the surface of the cable, it will press down on the cable, resulting in an increase in the bending degree of the cable. At this time, the electronically controlled self-driving obstacle-clearing module 9 will be activated and travel along the cable. At the same time, it will rotate to remove and drive away impurities and birds on the surface of the cable, and then use the electronically controlled flipping and correcting arm 10 to support the cable from the bottom, so as to facilitate the electronically controlled self-driving obstacle-clearing module 9 to switch positions.

[0028] In order to improve the guiding and limiting capabilities, an external limiting and guiding groove 11 extending outward from the arc-shaped guide plate 8 is provided on the arc-shaped surface of the outside of the metal support sleeve 7.

[0029] In order to cooperate with optical monitoring, optical detection probes 12 for detecting the bending angle of the cable are fixedly assembled at the lower ends of the openings on both sides of the metal support sleeve 7.

[0030] The optical detection probe 12 horizontally detects the distance from the cable. When the cable bends, the distance between it and the optical detection probe 12 will be reduced, thereby judging that the bending degree of the cable has changed.

[0031] In order to adjust the angle between the cable and the metal support sleeve 7 and facilitate the switching and adjustment of the electronically controlled self-driving obstacle-clearing module 9 between the cable and the metal support sleeve 7, the electronically controlled flipping and correcting arm 10 includes a bottom flipping and correcting plate 101 hinged to the lower ends of the openings on both sides of the metal support sleeve 7 and a bottom adjusting strut 102 for controlling the bottom flipping and correcting plate 101.

[0032] To avoid affecting the adjustment of the bottom flipping correction plate, a flipping transition port that cooperates with the optical detection probe 12 is provided at the movable connection end on the bottom flipping correction plate 101.

[0033] An all-weather bird repelling and obstacle clearing device for high-altitude erected cables includes an electronically controlled self-driving obstacle clearing module 9. The electronically controlled self-driving obstacle clearing module 9 includes a split-ring external frame 91, an electronically controlled telescopic frame 92 installed inside the split-ring external frame 91, a bottom guide wheel 93, a top driving wheel 94, a split arc-shaped guide rail 95 fixedly installed on the side wall of the split-ring external frame 91, an electronically controlled adjustment ring 96 slidably inserted inside the split arc-shaped guide rail 95, and an electronically controlled flipping obstacle clearing blade 97 installed on the inner arc surface of the electronically controlled adjustment ring 96.

[0034] The electronically controlled telescopic frame 92 consists of a fixed frame fixed on the inner side surface of the split-ring external frame 91, a telescopic frame body slidably sleeved outside the fixed frame, and an external adjustment strut fixed outside the fixed frame for controlling the telescopic frame body.

[0035] Working principle: When the optical detection probe 12 monitors that the bending angle of the cable becomes larger and lasts for more than one minute, at this time, the optical detection probe 12 controls the top driving wheel 94 to start. Then, the top driving wheel 94 drives the entire split-ring external frame 91 to move from the outside of the metal support sleeve 7 to the outside of the cable. By lowering the gravity device, the stability of the entire split-ring external frame 91 can be improved. The bottom guide wheel 93 adjusts its tightness with the cable surface through the electronically controlled telescopic frame 92 to ensure the stability of the entire split-ring external frame 91 during the driving process. Then, when the split-ring external frame 91 moves, the electronically controlled flipping obstacle clearing blade 97 is driven to rotate through the electronically controlled adjustment ring 96. The electronically controlled flipping obstacle clearing blade 97 has two angles. One is that both sides have a certain inclination angle, and the air at the rear side of the traveling direction is pumped to the front side for blowing and cleaning impurities. The other is that both sides have no inclination angle, and the cable surface is scraped and slag removed by means of centrifugal rotation.

[0036] A balancing device is installed on both sides of the bottom of the split-ring external frame 91 to ensure its stability during operation. The balancing device can be a balance rod or a balance block.

[0037] To cooperate with assembly and adjustment, the electronically controlled adjustment ring 96 includes a first arc-shaped adjustment frame 961, a second arc-shaped adjustment frame 962 fixedly installed inside the split arc-shaped guide rail 95, and a rotation adjustment motor 963 fixedly installed outside the split arc-shaped guide rail 95.

[0038] For fitting and fixing, the first arc-shaped adjustment frame 961 and the second arc-shaped adjustment frame 962 are fixedly assembled by bolts.

[0039] The first arc-shaped adjustment frame 961 and the second arc-shaped adjustment frame 962 are inserted into the internal part of the split arc-shaped guide rail 95, and both ends are fixed and assembled by bolts. Arc-shaped tooth grooves that cooperate with the rotation adjustment motor 963 are provided on the side walls of the first arc-shaped adjustment frame 961 and the second arc-shaped adjustment frame 962. The rotation adjustment motor 963 is inserted into the arc-shaped tooth grooves through the rotation adjustment gear on the output shaft and meshes with the arc-shaped tooth grooves for transmission.

[0040] To cooperate with the installation and adjustment on the inner side, the electric-controlled flipping ice-clearing blade 97 includes a lateral mounting seat 971 fixed on the first arc-shaped adjustment frame 961 and the second arc-shaped adjustment frame 962, an external adjustment blade 972 movably mounted on the outside of the lateral mounting seat 971, an arc-shaped control rack 973 movably mounted inside the first arc-shaped adjustment frame 961 and the second arc-shaped adjustment frame 962 for controlling the external adjustment blade 972, and a bottom-mounted electromagnet 974 mounted on the side wall of the second arc-shaped adjustment frame 962.

[0041] The external adjustment blade 972 is movably assembled with the lateral mounting seat 971 by inserting a connecting shaft. Then, an internal gear meshing with the arc-shaped control rack 973 is axially fixed at the end of the connecting shaft inside the lateral mounting seat 971. The arc-shaped control rack 973 is composed of multiple annular tooth frames fixed by bolts. Then, a control rod is fixed at the lower end of the bottommost arc-shaped control rack 973, and the control rod is connected to the spring on one side of the bottom-mounted electromagnet 974. When the bottom-mounted electromagnet 974 is activated to generate magnetism, it controls the spring to contract, thereby driving the rotation of the arc-shaped control rack 973 and changing the angle of the external adjustment blade 972.

[0042] To improve the ice and snow removal effect, an internal electric heating wire 13 is fixedly installed inside the external adjustment blade 972.

[0043] Under the condition of temperature, the internal electric heating wire 13 will be pre-opened to increase the temperature of the external adjustment blade 973, and then the snow and ice on the cable surface can be quickly removed. When ice and snow need to be removed, the blowing method is adopted. First, the spring on one side of the bottom-mounted electromagnet 974 is used to drive the annular tooth frame composed of multiple arc-shaped control racks to rotate. Then, the annular tooth frame drives the angle of the external adjustment blade 972 to rotate. Then, the rotation adjustment motor 963 drives the first arc-shaped adjustment frame 961 and the second arc-shaped adjustment frame 962 to quickly rotate along the split arc-shaped guide rail 95. In this way, the air on one side can be blown to the cable surface on the other side through heating. The hot air is used to accelerate the melting of the snow and ice on the cable surface, and then the water on the cable surface is quickly dried to avoid secondary icing on the cable surface. In this way, non-contact ice and snow removal can be adopted to improve the safety of the cable. At the same time, the vibration generated during operation can also quickly shake off the snow.

[0044] Inspired by the above-described ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A high-altitude cable, comprising a conductor (1), characterized in that: The conductor (1) is provided with a refractory fiber tape (2), a calcined mica tape (3), an EPR ethylene propylene rubber insulation (4), a halogen-free low-smoke flame retardant tape (5) and a sheath (6) in sequence on the outside. The outside of the sheath (6) is fixedly provided with a metal support sleeve (7) at the outside of the two connecting ends on both sides. The two sides of the metal support sleeve (7) have an arc-shaped guide plate (8) of an integral structure bent downward. An electrically controlled self-driven obstacle clearing module (9) is provided on the outside of the metal support sleeve (7). An electrically controlled flip correction arm (10) is movably provided on the lower end of the outside of the metal support sleeve (7).

2. A high-altitude cable according to claim 1, characterized in that: An external limiting guide groove (11) extending toward the outside of the arc-shaped guide plate (8) is provided on the outer arc-shaped surface of the metal support sleeve (7).

3. The high-altitude cable according to claim 1 is characterized in that: Optical detection probes (12) for detecting the bending angle of the cable are fixedly mounted on the lower ends of the openings on both sides of the metal support sleeve (7).

4. The high-altitude cable according to claim 1 is characterized in that: The electrically controlled flip correction arm (10) comprises a bottom flip correction plate (101) connected to the lower ends of the openings on both sides of the metal support sleeve (7) via hinges, and a bottom adjustment support rod (102) used to control the bottom flip correction plate (101).

5. A high-altitude cable according to claim 4, characterized in that: The bottom flip correction plate (101) is provided with a flip transition opening at the movable connection end, which is matched with the optical detection probe (12).

6. An all-weather bird-repelling and obstacle-clearing device for overhead cable erection, comprising an electrically controlled self-driven obstacle-clearing module, characterized in that: The electrically controlled self-driven obstacle removal module (9) comprises a split annular outer frame (91), an electrically controlled telescopic frame (92) mounted inside the split annular outer frame (91), a bottom guide wheel (93), a top drive wheel (94), a split arc guide rail (95) fixedly mounted on the side wall of the split annular outer frame (91), an electrically controlled adjustment ring (96) slidably plugged inside the split arc guide rail (95), and an electrically controlled flip obstacle removal blade (97) mounted on the inner arc surface of the electrically controlled adjustment ring (96).

7. The all-weather bird-repelling and obstacle-clearing device for high-altitude cable erection according to claim 6 is characterized by: The electrically controlled adjustment ring (96) comprises a first arc-shaped adjustment frame (961) fixedly mounted inside the split arc-shaped guide rail (95), a second arc-shaped adjustment frame (962), and a rotation adjustment motor (963) fixedly mounted outside the split arc-shaped guide rail (95).

8. The all-weather bird-repelling and obstacle-clearing device for high-altitude cable erection according to claim 7 is characterized by: The first arc-shaped adjustment frame (961) and the second arc-shaped adjustment frame (962) are fixedly assembled by means of bolts.

9. The all-weather bird-repelling and obstacle-clearing device for high-altitude cable erection according to claim 8 is characterized by: The electrically controlled flip obstacle clearing blade (97) comprises a lateral mounting seat (971) fixed on a first arc-shaped adjustment frame (961) and a second arc-shaped adjustment frame (962), an external adjustment blade (972) movably mounted on the outside of the lateral mounting seat (971), an arc-shaped control rack (973) movably mounted inside the first arc-shaped adjustment frame (961) and the second arc-shaped adjustment frame (962) for controlling the external adjustment blade (972), and a bottom-mounted electromagnet (974) mounted on a side wall of the second arc-shaped adjustment frame (962).

10. The all-weather bird-repelling and obstacle-clearing device for high-altitude cable erection according to claim 9 is characterized in that: A built-in electric heating wire (13) is fixedly installed inside the external adjustment blade (972).

Images