Crosslinked polyethylene insulated power anti-interference control cable and support thereof

Abstract

The invention relates to a linked polyethylene insulated power anti-interference control cable which sequentially comprises a wire core, a filling layer, a shielding layer, an armor layer and a rubber layer from inside to outside and further comprises a machine shell. The first air pressure sensor outputs a detected air pressure rising signal, and the air pressure rising signal is essentially a key indirect temperature abnormity indication signal. As the temperature sensor directly reflects that the temperature of the local armor layer area exceeds the threshold temperature of particle decomposition, an external system sends out an overheat alarm after receiving the signal, and an operator is prompted to troubleshoot a fault point. The thermal decomposition particles filled in the metal tube in the armor layer are utilized to convert the local high temperature of the armor layer / rubber layer junction area which is difficult to directly measure into visible gas generation amount change, and then the visible gas generation amount change is converted into an accurate gas pressure signal through the closed cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a cross-linked polyethylene insulated power anti-interference control cable and a bracket thereof. Background Art

[0002] In modern industrial automation, power transmission, and precision instrument control, control cables serve as a critical medium for signal and command transmission, making their performance, stability, and reliability crucial. Industrial environments are often extremely harsh. Cables must not only withstand strong electromagnetic and radio frequency interference to ensure accurate signal transmission, but also withstand complex physical stresses, including compression, bending, vibration, and extreme temperature fluctuations. This poses a significant challenge to ensuring safe and continuous system operation. Currently, common interference-resistant control cables utilize a multi-layer composite structure, typically consisting of a conductor core, insulation layer, filler layer, shielding layer, armor layer, and outer sheath. Cables are prone to localized overheating during operation or when exposed to high external temperatures. Traditional structures lack real-time, in-situ temperature sensing of critical internal thermal conditions. Relying on manual inspections cannot effectively warn of internal thermal hazards, making overheating difficult to detect, accelerating insulation aging, and even leading to thermal breakdown. Summary of the Invention

[0003] The primary objective of this invention is to provide a cross-linked polyethylene insulated, anti-interference power control cable to address the existing problem of conventional structures lacking real-time, in-situ temperature sensing of critical internal thermal conditions. Relying on external sensors or manual inspections cannot effectively warn of internal thermal hazards, making overheating difficult to detect, accelerating insulation aging, and even causing thermal breakdown.

[0004] In order to achieve the above object, the present invention provides a cross-linked polyethylene insulated power anti-interference control cable, which comprises, from the inside to the outside, a core, a filling layer, a shielding layer, an armor layer and a rubber layer, and also includes a casing; The armor layer includes a plurality of metal rods and at least one metal tube, wherein the plurality of metal rods and the metal tube are circumferentially coiled and arranged between the rubber layer and the shielding layer; The metal tube is filled with particles that decompose into gas when heated, and has multiple holes along its length; The rubber layer is provided with a plurality of first notches at intervals along the length direction thereof, each first notch is thermoplastically sheathed with a plastic layer, and the housing is fixed to the plastic layer or the rubber layer by a fixing mechanism; One side of the housing is provided with an arc-shaped plate, which has a second notch. A partition plate and a flexible membrane are fixedly arranged in the housing. The partition plate and the flexible membrane divide the housing away from the plastic film into a storage cavity, an air film cavity and a storage cavity in sequence. A needle tube is fixedly arranged on the partition plate, and the storage cavity and the air film cavity are connected through the needle tube. Wherein, a first air pressure sensor is arranged in the air film cavity.

[0005] Preferably, the shielding layer is woven from metal copper wires.

[0006] Preferably, a guide tube is fixedly provided on a side of the housing away from the second notch, the guide tube is in communication with the cavity, and a guide post is slidably provided on the inner wall, the guide post has an L-shaped hole, and a plurality of annular cavities are provided along the axial direction of the end of the guide tube away from the cavity, each of the annular cavities has a second air pressure sensor, and a connecting hole is provided on the inner wall; One end of the guide column is fixedly connected to the flexible membrane. The flexible membrane is provided with a through hole, which is communicated with the head end of the L-shaped hole. The tail end of the L-shaped hole can be communicated with any connecting hole.

[0007] Preferably, magnet sheets are fixed on both the partition plate and the flexible membrane, and the two magnet sheets can meet and attract each other, and can contact each other.

[0008] Preferably, the cross-linked polyethylene insulated power anti-interference control cable further includes a horn structure, the closing end of the horn structure is fixed to the partition and is located outside the needle tube, and the open end of the horn structure can contact the plastic layer.

[0009] Preferably, the particles that decompose into gas when heated are ammonium persulfate; The first air pressure sensor or the second air pressure sensor is electrically connected to the power supply module through two wires, and the two wires are located in the air film cavity or the annular cavity; Wherein, any one of the wires has a first metal segment, a porous alumina graphene composite segment, and a second metal segment, the first metal segment, the porous alumina graphene composite segment, and the second metal segment are connected in sequence, the first metal segment is electrically connected to the power supply module, and the second metal segment is electrically connected to the first air pressure sensor or the second air pressure sensor; When ammonium persulfate is thermally decomposed to generate water vapor, the water vapor adheres to the porous alumina graphene composite segment, so that an electrical path is formed between the power supply module and the first air pressure sensor or the second air pressure sensor.

[0010] Preferably, the cross-linked polyethylene insulated power anti-interference control cable further includes a PC computer, and the PC computer communicates with the first air pressure sensor or the second air pressure sensor.

[0011] Preferably, the filling layer is made of polyethylene.

[0012] The main purpose of the present invention is to provide a cross-linked polyethylene insulated power anti-interference control cable bracket to solve the problems existing in the prior art.

[0013] In order to achieve the above-mentioned object, the present invention also provides a cross-linked polyethylene insulated power anti-interference control cable bracket, comprising a clamping member, a threaded rod and a blocking rod; The clamping member clamps the wire rope; The top end of the threaded rod is fixedly connected to the clamping member, and a vertical plate is fixedly provided at the bottom end. Rotating shafts are provided on both side walls of the vertical plate. The two rotating shafts are arranged in parallel. Each rotating shaft is hingedly provided with an S-shaped plate. The bottom end of the S-shaped plate forms a first arc segment, and the top end forms an inclined plate segment. The first arc segment abuts against the plastic layer, a vent is provided in the first arc segment, the arc plate is fixedly attached to the first arc segment, and the vent is communicated with the first notch; The threaded rod is provided with a strip groove along its axial direction and is screwed with the first nut. The blocking rod passes through the strip groove and abuts against the first nut. Both ends of the blocking rod abut against the two inclined plate sections respectively.

[0014] Preferably, the clamping member comprises an upper clamping plate, a lower clamping plate, a horizontal plate and four bolts; The middle parts of the upper clamping plate and the lower clamping plate have grooves, and the two grooves fit the wire rope. Four bolts are sequentially passed through the upper clamping plate, the lower clamping plate, and the horizontal plate, and arranged in a matrix. Each bolt is screwed with three second nuts. The upper clamping plate and the lower clamping plate are located between the bolt cap and one second nut. The horizontal plate is clamped between the remaining two second nuts.

[0015] The beneficial effects of the above scheme are: Initially, the coiled metal tube within the armor layer is filled with solid particles that decompose into gas upon heating. The storage cavity, air film cavity, and volume cavity within the housing are physically separated by a partition and a flexible membrane. The storage cavity is connected to the air film cavity via a needle on the partition. The flexible membrane is adjacent to the air film cavity, which is at ambient pressure or a set initial pressure. A first pressure sensor continuously monitors the pressure within the air film cavity. When the temperature of the armor layer near the rubber layer of the cable rises significantly due to overload, connection point failure, or external heat, the decomposition threshold of the particulate matter is reached, and the high temperature is transferred to the metal tube coiled in this area. The particulate matter within the heated metal tube undergoes a chemical reaction under the high temperature, decomposing and producing gas. The newly generated gas rapidly expands and is released into the gap between the armor layer and the rubber layer through multiple perforations cut along the length of the metal tube. This gas diffuses and accumulates upward along the armor structure, ultimately reaching the first notch area distributed around the circumference of the rubber layer. The plastic layer covering the notch and the housing attached to it together form a bulge. After the bulge continues to increase in volume, a needle is inserted into it, so that the needle is connected to the bulge. Since the space of the accumulation cavity is limited and is connected to the air film cavity through a small needle, gas accumulates rapidly in the accumulation cavity, causing the pressure in the accumulation cavity to increase significantly. The high pressure of the accumulation cavity is slowly and steadily transmitted to the air film cavity through the needle, and the pressure in the air film cavity rises accordingly. The first air pressure sensor fixedly installed in the air film cavity detects the increase in air pressure in the cavity in real time. The first air pressure sensor outputs the detected air pressure increase signal, which is essentially a key indirect temperature anomaly indication signal. Because it directly reflects that the temperature of the local armor area exceeds the threshold temperature for particle decomposition, the external system issues an overheating alarm after receiving this signal, prompting the operator to check the fault point. The present invention uses thermal decomposition particles filled in the metal tube inside the armor layer to convert the local high temperature in the armor / rubber layer interface area that is difficult to measure directly into a visible change in gas generation, and then converts it into an accurate air pressure signal through a closed cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the cross-linked polyethylene insulated power anti-interference control cable of the present invention; Figure 2 This is a schematic structural diagram of the anti-interference control power supply module, the first air pressure sensor, and the second air pressure sensor of the present invention; Figure 3 It is a communication diagram of a PC computer, a first air pressure sensor, and a second air pressure sensor of the anti-interference control circuit of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the cross-linked polyethylene insulated power anti-interference control cable bracket of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the cross-linked polyethylene insulated power anti-interference control cable bracket of the present invention; Figure 6 yes Figure 5 Schematic diagram of the three-dimensional structure in a cross-sectional view; Figure 7 yes Figure 5 A schematic diagram of the front structure in a mid-section state; Figure 8 It is a structural schematic diagram of other embodiments of the present invention.

[0018] Description of Reference Numerals 1. Cable; 10. Core; 11. Filling layer; 12. Shielding layer; 13. Armor layer; 14. Rubber layer; 15. Housing; 130. Metal rod; 131. Metal tube; 16. Plastic layer; 150. Curved plate; 152. Partition; 153. Flexible membrane; 154. Storage cavity; 155. Air film cavity; 156. Storage cavity; 157. Needle tube; 158. Catheter; 159. Guide post; 1591. L-shaped hole; 1581. Annular cavity; 1582. Connecting hole; 1500, magnet sheet; 1501, speaker structure; 2, first air pressure sensor; 21, second air pressure sensor; 3, power supply module; 4, wire; 41, first metal segment; 42, porous alumina graphene composite segment; 43, second metal segment; 5, PC computer; 6, clamping member; 61, upper clamping plate; 62, lower clamping plate; 63, horizontal plate; 600, groove; 65, second nut; 66, bolt; 7, threaded rod; 71, vertical plate; 710, slide; 711, moving block; 712, open portion; 713, electric telescopic rod; 72, rotating shaft; 73, S-shaped plate; 731, first arc segment; 732, inclined plate segment; 735, strip groove; 736, first nut; 8, stop rod; 9, wire rope. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0020] like Figure 1-Figure 7As shown, this embodiment provides a cross-linked polyethylene insulated power anti-interference control cable 1, which includes a core 10, a filling layer 11, a shielding layer 12, an armor layer 13 and a rubber layer 14 from the inside to the outside. The shielding layer 12 is woven from metal copper wire. The filling layer 11 is made of cross-linked polyethylene insulation material. The filling layer 11 adopts existing technology, so it will not be described in detail. Please refer to the patent announcement number: CN118755187B-China Invention Patent A cross-linked polyethylene insulated cable and its preparation method. Figure 4 As shown, the cross-linked polyethylene insulated power anti-interference control cable also includes a housing 15. Figure 1 As shown, the armor layer 13 includes a plurality of metal rods 130 and at least one metal tube 131. The plurality of metal rods 130 and the metal tube 131 are arranged circumferentially between the rubber layer 14 and the shielding layer 12. The metal tube 131 is filled with particles that decompose into gas when heated, and the metal tube 13 has a plurality of perforations (not shown) along its length. The rubber layer 14 has a plurality of first notches (not shown) spaced circumferentially along its length. Figure 4 As shown, each first notch is thermoplastically sheathed with a plastic layer 16, and the housing 15 is fixed to the plastic layer 16 or the rubber layer 14 by a fixing mechanism (the fixing mechanism can be regarded as a cross-linked polyethylene insulated power anti-interference type control cable bracket, or other brackets that can fix the housing at the first notch). Figure 5 As shown, one side of the housing 15 has an arc-shaped plate 150, and the arc-shaped plate 150 has a second notch (not shown). The arc-shaped plate 150 is attached to the plastic layer, as shown in FIG. Figure 6 As shown, a partition 152 and a flexible membrane 153 are fixedly installed within the housing 15. These partitions divide the space within the housing 15 away from the plastic film into a storage chamber 154, an air film chamber 155, and a storage chamber 156. A needle 157 is fixedly installed on the partition 152, connecting the storage chamber 154 and the air film chamber 155 via the needle 157. A first air pressure sensor 2 is installed within the air film chamber 155. Available models for the first and second air pressure sensors include AS_P5, PSE530, WF5805F, and WF282.

[0021] Initially, the coiled metal tube 131 within the armor 13 is filled with solid particles that decompose into gas upon heating. The storage chamber 154, air film chamber 155, and storage chamber 156 within the housing 15 are physically separated by a partition 152 and a flexible membrane 153. The storage chamber 154 communicates with the air film chamber 155 via a needle 157 on the partition 152. The air film chamber 155 is at atmospheric pressure or a set initial pressure, and the first air pressure sensor 2 continuously monitors the air pressure within the air film chamber 155. When the temperature of the armor 13 region near the rubber layer 14 of the cable 1 significantly rises due to overload, connection point failure, or external heat, the decomposition threshold for the particulate matter is reached, and the high temperature is transferred to the metal tube 131 coiled in this region. The heated metal tube 131's granular material undergoes a chemical reaction under the high temperature, decomposing and producing gas. The newly generated gas rapidly expands and is released into the gap between the armor 13 and rubber layers 14 through multiple perforations along the length of the metal tube 131. These gases diffuse and accumulate upward along the structure of the armor layer 13, ultimately reaching the first notch area distributed around the circumference of the rubber layer 14. The plastic layer 16 covering the notch and the housing 15 fixed thereto together form a bulge. As the bulge continues to grow in volume, a needle 157 is inserted, connecting the needle 157 to the bulge. Due to the limited space in the accumulation chamber 154 and its connection to the air film chamber 155 via the tiny needle 157, gas rapidly accumulates within the accumulation chamber 154, causing the pressure within the chamber 154 to increase significantly. The high pressure in the accumulation chamber 154 is slowly and steadily transferred to the air film chamber 155 through the needle 157, causing the pressure within the air film chamber 155 to rise accordingly. The first air pressure sensor 2, fixed within the air film chamber 155, detects the increase in pressure in the chamber in real time. The first air pressure sensor 2 outputs a signal indicating the detected pressure increase. Because it directly reflects that the temperature in the local area of ​​the armor layer 13 has exceeded the threshold temperature for particle decomposition, the external system, upon receiving this signal, issues an overheating alarm, prompting the operator to troubleshoot the problem. The present invention utilizes the thermal decomposition particles filled in the metal tube 131 to convert the local high temperature at the interface between the armor layer 13 and the rubber layer 14, which is difficult to measure directly, into a visible change in gas generation.

[0022] like Figure 6As shown, a guide tube 158 is fixedly mounted on the side of the housing 15 away from the second notch. Guide tube 158 communicates with cavity 156, and a guide post 159 is slidably mounted on the inner wall of guide tube 158. Guide post 159 defines an L-shaped hole 1591. The end of guide tube 158 away from cavity 156 defines multiple annular cavities 1581 along its axial direction. Each annular cavity 1581 houses a second air pressure sensor 21, and each annular cavity 1581 has a connecting hole 1582 defined on its inner wall. One end of guide post 159 is fixedly connected to flexible membrane 153. Flexible membrane 153 defines a perforation that communicates with the leading end of L-shaped hole 1591. The trailing end of L-shaped hole 1591 can communicate with any of the connecting holes 1582. As the temperature inside cable 1 continues to rise, the thermally decomposable particles contained within metal tube 131 accelerate the reaction, releasing more gas. The gas enters the gap between rubber layer 14 and shielding layer 12 through the perforations and diffuses along the first notch toward housing 15. At this time, the air pressure in the air film cavity 155 in the original organic shell 15 increases, pushing the flexible membrane 153 to expand toward the cavity 156, and driving the guide column 159 fixedly connected to the flexible membrane 153 to slide in the guide tube 158. When the guide column 159 slides axially along the guide tube 158, the L-shaped hole 1591 opened inside it moves with the guide column 159. When the temperature reaches the second-level warning threshold, the guide column 159 slides to a specific position so that the tail end of the L-shaped hole 1591 is aligned with a connecting hole 1582 of the annular cavity 1581 at the end of the guide tube 158. At this time, part of the gas in the air film cavity 155 enters the head end of the L-shaped hole 1591 through the perforation of the flexible membrane 153, and then enters the annular cavity 1581 through the connecting path between the tail end and the connecting hole 1582. When the temperature rises rapidly, the gas release rate accelerates, and the guide post 159 slides faster, shortening the time it takes for the L-shaped hole 1591 to connect with the connecting hole 1582. This in turn increases the rate of change in air pressure detected by the second sensor. By analyzing the rate of change in air pressure in the annular cavity 1581, the speed of temperature rise within the cable 1 can be indirectly determined. Magnets 1500 are affixed to both the partition 152 and the flexible membrane 153, allowing them to meet, attract, and contact each other. In critical conditions where the temperature is abnormal but the air pressure does not continue to rise (such as temperature fluctuations), the flexible membrane 153 may experience slight vibration or positional drift due to the restoring force and residual pressure in the air film cavity 155. This can cause the guide post 159 to slide back and forth within a small range, easily causing the L-shaped hole 1591 to repeatedly switch between connected and disconnected positions, leading to false alarms, jitter, or delays in the second air pressure sensor signal. The cross-linked polyethylene insulated power anti-interference control cable also includes a speaker structure 1501. The closed end of the speaker structure 1501 is fixed to the partition 152 and is located outside the needle tube 157. The open end of the speaker structure 1501 can contact the plastic layer 16. The particles that decompose into gas when heated are ammonium persulfate. Ammonium persulfate decomposes into oxygen, sulfur dioxide, ammonia and water vapor. The decomposition temperature of ammonium persulfate is about 80-100°C. In addition, Figure 2 As shown, the first air pressure sensor 2 or the second air pressure sensor 21 is electrically connected to the power supply module 3 through two wires 4, and the two wires 4 are located in the air film cavity 155 or the annular cavity 1581. Among them, any wire 4 has a first metal segment 41, a porous alumina graphene composite segment 42, and a second metal segment 43. The first metal segment 41, the porous alumina graphene composite segment 42, and the second metal segment 43 are connected in sequence. The first metal segment 41 is electrically connected to the power supply module 3, and the second metal segment 43 is electrically connected to the first air pressure sensor 2 or the second air pressure sensor 21.

[0023] When ammonium persulfate is thermally decomposed to produce water vapor, the water vapor adheres to the porous alumina graphene composite segment 42, forming an electrical path between the power supply module 3 and the first air pressure sensor 2 or the second air pressure sensor 21. The porous alumina graphene composite segment 42 of the two wires 4 is in a dry state, resulting in good insulation performance. There is no conductive path between the first metal segment 41 and the second metal segment 43, and the first air pressure sensor or the second air pressure sensor is not powered. The ammonium persulfate particles in the metal tube 131 remain solid, no gas is released, and the air pressure in the accumulation cavity 154, the air film cavity 155, and the annular cavity 1581 is normal. When the temperature inside the cable 1 rises to approximately 80 degrees, the ammonium persulfate in the metal tube 131 is thermally decomposed, producing oxygen, sulfur dioxide, ammonia, and water vapor. The gas produced by the decomposition enters the storage chamber 154 through the perforations in the metal tube 131. The pressure in the storage chamber 154 increases, and the water vapor produced by the decomposition adheres to the surface of the porous alumina graphene composite segment 42 of the conductor 4. The conductivity of the water turns the originally insulating porous alumina graphene composite segment 42 into a conductor, forming a conductive path. Porous alumina has nanoscale pores that rapidly absorb trace amounts of water vapor through capillary action. The graphene sheets are dispersed in the porous skeleton and, when dry, are isolated from each other, forming insulation. After the water vapor is absorbed, the water forms a continuous electrolyte membrane within the pores, shortening the distance between the graphene sheets to form an electron tunneling effect. The operating temperature range is wide, and rising temperature accelerates water adsorption, assisting conduction. The porous alumina graphene composite segment of the present invention utilizes existing technology, so detailed description is omitted. References include patent publication numbers: CN109650386B - Chinese Invention Patent for Graphene Composite Materials, Graphene Alumina Composite Materials, and Preparation Methods and Applications of Graphene Alumina Composite Powder Materials, CN111410517B - Chinese Invention Patent for Carbon Nanotube and Graphene Synergistically Reinforced Alumina-Based Composite Materials, or CN108640663B - Chinese Invention Patent for Graphene / Silicon Carbide Reinforced Alumina-Based Composite Materials and Preparation Methods. During drying, the porous alumina graphene composite segment is de-energized. Power supply module 3 supplies power to the first or second air pressure sensor 21 via wire 4, activating the sensor. First air pressure sensor 2 monitors pressure changes within air film cavity 155, reflecting abnormal temperature in storage cavity 154. Second air pressure sensor 21 monitors pressure changes within annular cavity 1581 and, in conjunction with the connectivity of L-shaped hole 1591 of guide post 159, determines the rate of temperature increase. Utilizing water vapor generated by the decomposition of ammonium persulfate as a natural conductive medium, this system avoids reliability issues associated with traditional mechanical switches or electronic components in high-temperature, high-humidity environments. Once the temperature returns to normal, the vapor evaporates, automatically disconnecting the wire 4. The system can be reset without manual intervention, making it suitable for long-term cyclic monitoring. The cross-linked polyethylene insulated power anti-interference control cable 1 also includes a PC 5, which communicates with the first air pressure sensor 2 or the second air pressure sensor 21.

[0024] Furthermore, in scenarios such as industrial automation, power transmission, and rail transit, control cables 1 often need to be routed across long distances or complex terrain. When cables 1 are directly tied to rigid supports, stress concentration can easily occur at the fixed points due to their own weight or external vibrations, leading to cracking of the insulation layer or failure of the shielding layer 12. This significantly increases the risk of fatigue damage, especially in high-frequency vibration environments. Therefore, the prior art suspends the cables 1 on the wire rope 9 via multiple prior art connecting brackets. The aforementioned connecting brackets are overly cumbersome to install and have a complex structure.

[0025] like Figure 4 、 Figure 8 As shown, this embodiment also provides a cross-linked polyethylene insulated power anti-interference control cable 1 bracket, including a clamping member 6, a threaded rod 7 and a blocking rod 8. The clamping member 6 clamps the wire rope 9. The top of the threaded rod 7 is fixedly connected to the clamping member 6, and a vertical plate 71 is fixedly provided at the bottom end of the threaded rod 7. A rotating shaft 72 is provided on both side walls of the vertical plate 71. The two rotating shafts 72 are arranged in parallel. Each rotating shaft 72 is hingedly provided with an S-shaped plate 73. The bottom end of the S-shaped plate 73 forms a first arc segment 731, and the top end of the S-shaped plate 73 forms an inclined plate segment 732. The first arc segment 731 is in contact with the plastic layer 16. The first arc segment 731 is provided with an air vent (not shown). The arc plate 150 is fixedly attached to the first arc segment 731, and the air vent is connected to the first notch. The threaded rod 7 has a strip-shaped groove 735 along its axial direction and is threadedly connected to a first nut 736. The blocking rod 8 passes through the strip-shaped groove 735 and abuts against the first nut 736. The two ends of the blocking rod 8 respectively abut against the two inclined plate sections 732. The clamping member 6 includes an upper clamping plate 61, a lower clamping plate 62, a horizontal plate 63, and four bolts 66. The middle portion of the upper clamping plate 61 and the lower clamping plate 62 has a groove 600, and the two grooves 600 are aligned with the wire rope 9. The four bolts 66 are sequentially arranged through the upper clamping plate 61, the lower clamping plate 62, and the horizontal plate 63. The four bolts 66 are arranged in a matrix, and each bolt 66 is threaded with three second nuts 65. The upper clamping plate 61 and the lower clamping plate 62 are located between the cap of the bolt 66 and one second nut 65. The horizontal plate 63 is clamped between the remaining two second nuts 65.

[0026] Align the grooves 600 of the upper clamping plate 61 and the lower clamping plate 62 with the wire rope 9, and pass four bolts 66 through the upper clamping plate 61, the lower clamping plate 62 and the horizontal plate 63 in sequence. Each bolt 66 is screwed with three second nuts 65 in sequence, among which the first second nut 65 is screwed into the bolt 66 to the cap, and fits with the upper surface of the upper clamping plate 61 to form an initial fixing point. The second second nut 65 is screwed into the lower surface of the lower clamping plate 62, and together with the third second nut 65, clamps the horizontal plate 63 to achieve a rigid connection between the horizontal plate 63 and the clamping member 6. The fourth second nut 65 acts as a locking nut and is screwed into the bottom of the lower clamping plate 62 to ensure that the clamping member 6 and the wire rope 9 do not slide. Weld or thread the top of the threaded rod 7 to the fixed clamping member 6 to complete the mechanical binding of the bracket and the wire rope 9. Rotate the S-shaped plate 73 to rotate it around the rotating shaft 72, and the first arc segment 731 at the bottom opens outward to form an open structure. Align the rubber layer 14 of the cable 1 with the first arc segment 731, aligning the first notch with the vent. Then, rotate the S-shaped plate 73 in the opposite direction, utilizing the curvature of the inner wall of the first arc segment 731 to flexibly clamp the cable 1. At this point, the arc plate 150 and the first arc segment 731 are securely attached, forming a sealed structure that prevents external contaminants from entering the vent.

[0027] Other embodiments: like Figure 8 As shown, two slideways 710 are provided on both sides of the vertical plate 71 along its length, and a moving block 711 is slidably provided in each slideway 710. An open portion 712 is provided on one side of the slideway 710. Two rotating shafts 72 are respectively rotatably provided on the moving blocks 711. The two moving blocks correspond to the two rotating shafts one-to-one. One end of the rotating shaft 72 is rotated on the moving block 711, and the other end passes through the open portion 712 and is hingedly provided with an S-shaped plate 73. The moving block 711 is connected to an electric telescopic rod 713, which is fixed on the vertical plate 71, and the piston rod is fixedly connected to the moving block 711. The piston rod of the electric telescopic rod 713 is provided along the length direction of the slideway 710. The two electric telescopic rods 713 are provided so that the two offset S-shaped plates 73 can move closer to or away from the middle, thereby completing the removal of the cable 1 from the bracket.

[0028] When the first air pressure sensor 2 or the second air pressure sensor 21 sends a signal to the PC computer 5, the PC computer 5 drives the corresponding two electric telescopic rods 713 to work, and the piston rods begin to extend, causing the cable 1 to break away from the bracket and fall down, which makes it convenient for maintenance personnel to repair it in the first time.

[0029] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A cross-linked polyethylene insulated power anti-interference control cable, comprising a core, a filling layer, a shielding layer, an armor layer and a rubber layer from the inside to the outside, characterized in that: Also includes the case; The armor layer includes a plurality of metal rods and at least one metal tube, wherein the plurality of metal rods and the metal tube are circumferentially coiled between the rubber layer and the shielding layer; The metal tube is filled with particles that decompose into gas when heated, and has multiple holes along its length. The rubber layer is provided with a plurality of first notches at intervals along its length, each first notch is thermoplastically sheathed with a plastic layer, and the housing is fixed to the plastic layer or the rubber layer by a fixing mechanism; One side of the housing is provided with an arc-shaped plate, the arc-shaped plate has a second notch, a partition plate and a flexible film are fixed in the housing, the partition plate and the flexible film divide the housing away from the plastic film into a storage cavity, an air film cavity and a storage cavity in sequence, a needle tube is fixed on the partition plate, and the storage cavity and the air film cavity are connected through the needle tube; Wherein, a first air pressure sensor is arranged in the air film cavity.

2. The cross-linked polyethylene insulated power anti-interference control cable according to claim 1, characterized in that: The shielding layer is woven from metal copper wires.

3. The cross-linked polyethylene insulated power anti-interference control cable according to claim 1, characterized in that: A guide tube is fixedly provided on a side of the housing away from the second notch, the guide tube being in communication with the cavity, and a guide post is slidably provided on the inner wall thereof, the guide post having an L-shaped hole formed therein, and a plurality of annular cavities are formed along the axial direction of the end of the guide tube away from the cavity, each of the annular cavities having a second air pressure sensor disposed therein, and a connecting hole is formed on the inner wall thereof; One end of the guide post is fixedly connected to the flexible membrane. The flexible membrane is provided with a through hole, the through hole is communicated with the head end of the L-shaped hole, and the tail end of the L-shaped hole can be communicated with any of the connecting holes.

4. The cross-linked polyethylene insulated power anti-interference control cable according to claim 1, characterized in that: Magnetic sheets are fixed on the partition plate and the flexible film, and the two magnetic sheets can meet and attract each other, and the two can contact each other.

5. The cross-linked polyethylene insulated power anti-interference control cable according to claim 1, characterized in that: It also includes a trumpet structure, the closing end of the trumpet structure is fixed to the partition and is located outside the needle tube, and the opening end of the trumpet structure can contact the plastic layer.

6. The cross-linked polyethylene insulated power anti-interference control cable according to claim 3, characterized in that: The particles that decompose into gas when heated are ammonium persulfate; The first air pressure sensor or the second air pressure sensor is electrically connected to the power supply module via two wires, and the two wires are located in the air film cavity or the annular cavity; Any of the wires comprises a first metal segment, a porous alumina graphene composite segment, and a second metal segment, wherein the first metal segment, the porous alumina graphene composite segment, and the second metal segment are connected in sequence, the first metal segment is electrically connected to the power supply module, and the second metal segment is electrically connected to the first air pressure sensor or the second air pressure sensor; When the ammonium persulfate is thermally decomposed to generate water vapor, the water vapor adheres to the porous alumina graphene composite segment, so that an electrical path is formed between the power supply module and the first air pressure sensor or the second air pressure sensor.

7. The cross-linked polyethylene insulated power anti-interference control cable according to claim 1, characterized in that: A PC is also included, and the PC communicates with the first air pressure sensor or the second air pressure sensor.

8. The cross-linked polyethylene insulated power anti-interference control cable according to claim 1, characterized in that: The filling layer is made of polyethylene material.

9. A cross-linked polyethylene insulated power anti-interference control cable bracket, characterized in that: The cross-linked polyethylene insulated power anti-interference control cable according to any one of claims 1 to 8, comprising a clamping member, a threaded rod and a stop rod; The clamping member clamps the steel wire rope; The top end of the threaded rod is fixedly connected to the clamping member, and a vertical plate is fixedly provided at the bottom end. Both side walls of the vertical plate are provided with rotating shafts, and the two rotating shafts are arranged in parallel. Each rotating shaft is hingedly provided with an S-shaped plate, and the bottom end of the S-shaped plate forms a first arc segment, and the top end forms an inclined plate segment. The first arc segment abuts against the plastic layer, the first arc segment is provided with an air vent, the arc plate is fixedly attached to the first arc segment, and the air vent is communicated with the first notch; The threaded rod is provided with a strip groove along its axial direction and is threadedly connected with a first nut. The blocking rod passes through the strip groove and abuts against the first nut. Both ends of the blocking rod abut against the two inclined plate sections respectively.

10. The cross-linked polyethylene insulated power anti-interference control cable bracket according to claim 9, characterized in that: The clamping member includes an upper clamping plate, a lower clamping plate, a horizontal plate and four bolts; The upper clamping plate and the lower clamping plate have grooves in the middle part, two of the grooves are in contact with the steel wire rope, and the four bolts are sequentially passed through the upper clamping plate, the lower clamping plate, and the horizontal plate, and arranged in a matrix. Each bolt is screwed with three second nuts, and the upper clamping plate and the lower clamping plate are located between the cap of the bolt and one of the second nuts; The horizontal plate is clamped between the remaining two second nuts.

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