151 results about "Overhead cable" patented technology

The invention discloses a low-temperature-resistant and tensile 10kv aerial cable, and relates to the technical field of cables, a tensile heat preservation assembly is arranged on the outer side of a spiral inner conductor, the tensile heat preservation assembly comprises an inner insulating layer, a middle supporting piece is arranged among three inner conductors, a heat conduction spiral pipe is connected to the outer side of a heat conduction braided pipe in a sleeving mode, and a tensile braided pipe is connected to the outer side of a middle insulating pipe in a sleeving mode. The outer side of the tensile braided tube is sleeved with a polyurethane foam thermal insulation pipe, one side of the interior of the degradation outer bag is filled with an expansion rubber strip, and an anti-freezing protection assembly is installed on the outer side of the polyurethane foam thermal insulation pipe. In the use process of the cable, by means of the friction force effect, the interior of the cable is twisted mutually, the contact area is increased, and the friction force is increased; the friction force can prevent the spiral inner conductor, the middle supporting piece and the heat conduction spiral pipe from sliding when bearing external force, the overall tensile strength of the cable is enhanced, meanwhile, the middle supporting piece and the heat conduction spiral pipe inside can deform to absorb energy, the cable is not prone to being snapped, and the internal strength is higher.

The utility model discloses a guide cylinder structure adopting a blasting deicing mode, and relates to the technical field of blasting deicing, a detonation filler is arranged in a blasting guide cylinder, an electric ignition structure is provided with an ignition structure corresponding to the detonation filler, and a lower buffer protection pad is installed at the position, corresponding to a blasting assembly, of a lower clamping frame. And a V-shaped groove is formed in the lower buffer protection pad. According to the blasting deicing principle, based on a high-strength blasting guide cylinder, impact force instantly released during combustion of detonation filler serves as source power for vibration deicing of the overhead cable, a lower buffering protection pad serves as a primary protection structure of the overhead cable, and particularly, a V-shaped groove is obtained through optimization and improvement in the lower buffering protection pad; the blasting guide cylinder is used for fully clamping the overhead cable, and the key point is that a staggered clamping position between the blasting guide cylinder and the overhead cable is used for avoiding direct damage to the overhead cable caused by blasting impact force on one hand, facilitating the separation process between the blasting guide cylinder and the overhead cable on the other hand, and particularly improving the deicing efficiency.

The present application relates to overhead cable technical field, especially it relates to a heat dissipation and humidity control overhead cable, in order to solve the existing cable only adopts the passive resistance way of simple heat insulation layer, ultimately leading to reduce the effect of cable heat dissipation, the present application introduces the outside air into the cooling cavity through the rectangular groove on the surface of the armor layer, cooperates with the inclined baffle, blocks the rainwater at the same time, utilizes the coolant in the low temperature auxiliary coolant cavity, when the cable core generates heat and transmits the heat to the insulation layer, the spiral pipe and the spiral fin closely attached to the outer surface of the insulation layer will absorb the heat, and the coolant in the aluminum spiral pipe will cool the spiral fin and the insulation layer, since the coolant in the liquid cavity always keeps low temperature, and the coolant in the liquid cavity and the coolant in the spiral pipe are connected through the L tube, at this time, the coolant in the spiral pipe can also keep low temperature, ultimately improves the effect of cable core heat dissipation.

This invention discloses a vibration damper structure for overhead cables, comprising: a base; a clamping assembly mounted on the base for clamping overhead cables; a reinforcing assembly connected to the base; spacing adjustment assemblies respectively mounted on opposite sides of the reinforcing assembly; and a vibration damper body detachably connected to the end of the spacing adjustment assembly. The spacing adjustment assembly includes: an adjusting seat, two bearing rings mounted on opposite ends of the adjusting seat, a lead screw connected between the two bearing rings, a guide rod disposed within the adjusting seat, a slider seat meshing with the lead screw, and a positioning shaft tube fastened to the slider seat. The guide rod is located on one side of the lead screw and passes through the slider seat, and the vibration damper body is connected to the positioning shaft tube. The vibration damper structure for overhead cables implementing this invention allows for adjustment of the hammer spacing to adapt to the wind vibration resistance performance of cables of different diameters; it has a simple structure and a wide range of applications.

The invention discloses a railway overhead cable inspection robot, and relates to the technical field of overhead line inspection, the railway overhead cable inspection robot comprises an inspection box, the upper surface of the inspection box is fixedly connected with a working plate, the upper surface of the working plate is fixedly connected with a motor, and the upper surface of the working plate is rotatably connected with a rotating shaft; the outer side of the rotating shaft is fixedly connected with a rotating plate, and the upper end of the rotating shaft is fixedly connected with the output end of a motor. According to the railway overhead cable inspection robot, when the device moves to a cable butt joint part, two groups of rotating plates synchronously release radial extrusion on a first airbag, the volume of a second airbag is synchronously reduced, displacement generated by deformation of the second airbag can drive a driving plate to reversely rotate, and at the moment, two groups of laser detectors can synchronously move outwards under the driving action of a pulling plate; in view of the fact that the width of the cable butt joint part is obviously larger than that of a single overhead cable, the laser detector achieves more accurate coverage detection of the butt joint area through the design of enlarging the distance between the detection modules.

The invention relates to an overhead cable sag adjusting device which comprises a mounting base and sag adjusting assemblies, the sag adjusting assemblies comprise the first sag adjusting assembly, the second sag adjusting assembly and the third sag adjusting assembly, a vertical plate is arranged above the mounting base, the first sag adjusting assembly is arranged in front of the vertical plate, and the third sag adjusting assembly is arranged in front of the vertical plate. The first sag adjusting assembly is longitudinally and slidably connected with the vertical plate; a second sag adjusting assembly is arranged in front of the first sag adjusting assembly, and the second sag adjusting assembly is in longitudinal lifting connection with the first sag adjusting assembly; a transverse plate is installed at the bottom of the first sag adjusting assembly, follow-up sag adjusting assemblies are arranged on the two sides of the upper portion of the transverse plate, and cable pushing assemblies and third sag adjusting assemblies are arranged above the follow-up sag adjusting assemblies. The device has the advantages of being reasonable in structure, capable of improving working efficiency, time-saving, labor-saving, high in error-tolerant rate, convenient to operate and good in safety.

The invention relates to the technical field of overhead cables, in particular to an overhead conductor cable with a split type diversion mechanism, which comprises a cable body, and the cable body comprises a conductor, a conductor shield, an insulator, an insulation shield, a copper strip shield, a filler, a wrapping tape, an inner sheath, an armor and an outer sheath from inside to outside. According to the overhead conductor cable with the split type flow guide mechanism, the middle flow guide frame is arranged on the armor, and the internal flow guide pipe inserted into the middle flow guide frame is communicated with the split type flow guide mechanism; according to the split type diversion mechanism, diversion nozzles on two sides are inserted into lateral openings of an internal diversion pipe to form a circulating flow channel on a cable body, so that the heat dissipation performance in the cable can be greatly improved, and the cable can stably and efficiently run for a long time; the plurality of annular assembling grooves are formed in the outer side of the outer sheath, the split type flow guide mechanisms are installed on the annular assembling grooves to be fixed to the cable, splicing can be carried out in the later period, and the installation mode is simple and rapid.

The embodiment of the application discloses an overhead cable fault prediction system, which comprises: a parameter calculation module configured to acquire first overhead cable images and second overhead cable images collected at different times, identify cable bending degrees in the first overhead cable images and the second overhead cable images, and obtain first bending parameters and second bending parameters; a scale determination module configured to determine a bending change scale of the cable based on the first bending parameters and the second bending parameters; and a fault result prediction module configured to obtain cable fault prediction parameters based on the bending change scale and time data of the different times, and predict cable faults based on the cable fault prediction parameters. The scheme solves the problem that most schemes in the prior art can only perform fault monitoring but cannot achieve efficient fault prediction, and provides a feasible scheme to realize prediction of cable faults.

This utility model relates to the field of power transmission technology, specifically to an aluminum core cross-linked polyethylene insulated overhead cable, comprising four cable cores, a fixing structure, a protective layer, several raised rings, and a positioning component. The four cable cores are arranged in a ring, the fixing structure covers the outside of the four cable cores, the protective layer covers the outside of the fixing structure, the raised rings are fixedly connected to the protective layer, and the positioning component is located outside the raised rings. The positioning component includes two fixing rings, a connecting block, and two fixing blocks. The two fixing rings respectively cover the outside of the corresponding raised rings, the two ends of the connecting block are rotatably connected to the two fixing blocks respectively, and the two fixing blocks are fixedly connected to the corresponding fixing blocks respectively. The two fixing blocks are bolted together. Through the above structural design, the problem of unstable installation of the insulation wear-resistant layer and easy slippage of the cable during hoisting in the prior art is solved.

The application provides an overhead cable joint live temperature measuring device and a mounting method, which comprises a surface acoustic wave temperature sensor mounted on the surface of an overhead cable joint through an arc-shaped fixing member and a mounting thimble; a monitoring distribution box, which is provided with a hanger for being connected with a hoop buckle; an insulating rod tool, which comprises an insulating rod main body and a threaded hole arranged on the top of the insulating rod main body, and the threaded hole can alternatively connect a sensor mounting bracket or a distribution box mounting bracket, so as to respectively realize the mounting of the sensor on the overhead cable joint and the mounting of the monitoring distribution box on a tower pole supporting the overhead cable in a live state; the surface acoustic wave temperature sensor realizes passive temperature collection through a reflection delay line structure, and transmits temperature information to the monitoring distribution box through a radio frequency signal of a unique frequency band. The application can realize the quick mounting and dismounting of the overhead line joint temperature measurement in a live state, and has the advantages of convenient installation and strong system independence.

The application relates to the technical field of cable vibration prevention, and discloses an overhead cable vibration prevention clamp with self-adaptive lining, which comprises a sleeve, a shell connected to the outside of the sleeve, an arc piece movably arranged in the shell, an elastic lining piece installed on one side of the arc piece, a plug rod installed on the other side of the arc piece, the plug rod being slidably inserted into the side of the shell, a traction rope connected to the end of the plug rod, a cylinder inserted into the side of the shell, a winding bolt threadedly connected to the side of the cylinder, and the traction rope being connected to the shell at one end and connected to the winding bolt through the shell and the cylinder at the other end. The elastic lining piece can buffer the rigid contact of the cable, reduce cable stress concentration, prolong the service life of the cable, automatically adjust the clamping force of the elastic lining piece, automatically adapt to the dynamic change of the cable to suppress the vibration of the cable, reduce the fatigue damage risk of the cable caused by wind vibration and dancing, and improve the vibration prevention effect of the overhead cable vibration prevention clamp.

The invention provides an aerial cable positioning and coiling length identification method and device, and relates to the technical field of data processing, infrastructure and communication testing. The method comprises the following steps: determining a plurality of sampling points of the overhead cable, and obtaining a vibration signal spectrum of each sampling point; determining a plurality of abnormal signals in the vibration signal spectrum, and dynamically filtering the vibration signal spectrum according to the time interval variance of the adjacent abnormal signals to obtain a target signal sequence; performing spatial distribution extraction and kernel function convolution optimization on the target signal sequence, and determining an initial estimation position of the overhead cable; and positioning the overhead cable according to the initial estimation position, and identifying the coiling length of the overhead cable according to the target signal sequence. The method can adapt to a complex noise environment, the positioning and coiling length of the overhead cable can be accurately identified, the digital intelligent management and control level of overhead cable resources is improved, and the operation and maintenance efficiency is improved.

The invention provides a 10kV power distribution network overhead insulated wire breakage prevention device. The 10kV power distribution network overhead insulated wire breakage prevention device comprises a lightning protection filter, an insulated wire guide binding wire and a 10kV insulated wire. The insulated wire guides the binding wire to be wound on the surface of an insulating layer of the 10kV insulated wire, and one end of the insulated wire is connected with the upper end of the lightning protection filter; and the lower end of the lightning protection filter is connected with a grounding grid through a ceramic resistor. According to the invention, the binding wire is guided to wind the surface of the insulating layer of the 10 kV overhead cable through the overhead insulated wire, so that the high-frequency component of lightning current is guided to be discharged from the filter preferentially, and the high-frequency component of the lightning current is absorbed through the bipolar plate effect in the filter and the high-frequency absorption effect of the barium titanate phase-change material. The high-current arc striking effect on the insulated wire under lightning stroke can be effectively improved, the wave head voltage of steep waves of lightning current is rapidly reduced, and lightning stroke trip-out faults caused by disconnection of the insulated wire of a distribution line and lightning stroke flashover under lightning stroke are reduced.

The utility model provides an overhead cable galloping monitoring device. The overhead cable galloping monitoring device comprises a threading seat, a temperature detection piece and a galloping detection assembly, a threading hole is formed in the threading seat, and a cable can penetrate through the threading hole; the temperature detection part is configured to detect the temperature of the cable, a containing groove is formed in the groove wall of the threading hole, and the temperature detection part is arranged in the containing groove; the galloping detection assembly is arranged in the threading seat, and the galloping detection assembly is configured to detect the galloping state of the cable.

The utility model discloses a construction site wire and cable overhead laying device, which relates to the technical field of wire and cable overhead laying, and comprises a fixing plate, positioning holes are formed in the upper end and the lower end of the fixing plate, the fixing plate is fixed on a wall body through expansion bolts installed in the positioning holes, and two connecting plates are horizontally and fixedly connected to one side of the fixing plate at equal intervals. A certain gap is formed between the connecting plates; according to the utility model, through the cooperation of the through groove, the connecting rod and the limiting block, the angle adjustment of the supporting rod is facilitated, the cable overhead convenience is improved, the cable overhead function is further realized, through the cooperation of the clamping block and the second telescopic spring, the fixation of the wire clamping mechanism through the bolt is facilitated, and the cable fixation stability is improved; therefore, the cable is fixed and released, it is ensured that the cable does not slide down in the laying process, and finally the problems that after the cable overhead laying device is installed, angle adjustment cannot be carried out, and the cable cannot be fixed conveniently are solved.

The application belongs to the technical field of cable installation equipment, and particularly relates to a bearing type overhead cable installation equipment, which comprises a plurality of clamping discs connected in an up-down mode, a supporting rod installed on the top of the clamping disc, and a cable clamp installed on the top end of the supporting rod. The clamping disc is composed of two clamping plates which are in butt joint with each other. A telescopic connecting rod is arranged between the adjacent clamping discs in an up-down mode. A locking bolt for fixation is symmetrically arranged at one end of the clamping disc. The top of the uppermost clamping disc is provided with the supporting rod. A load-bearing hinge is arranged at the top end of the supporting rod. The supporting rod extends upwards, and the cable clamp is fixed on the load-bearing hinge. The multi-point fixation structure of the plurality of clamping discs uniformly disperses the cable load on the layered folds of the transformer bushing, avoids the downward pulling force / lateral pulling force formed by the cable dead weight and external force from directly acting on the bushing terminal, significantly reduces the risk of bushing sealing failure, insulation damage and fracture, and solves the core problem of mechanical stress concentration in the traditional installation mode.

The invention relates to a rail transit accessory recognition device based on RFID, and relates to the technical field of rail transit. The first pulley is in contact with the top of the rail; the power conversion mechanism is driven by the first pulley and used for converting rail friction force into pneumatic power; the first read-write module is driven to move by the air pressure generated by the power conversion mechanism and is used for identifying the RFID tag on the track structure accessory; the second read-write module is used for identifying the RFID tag of the overhead cable above the track; and the control unit is used for processing data acquired by the first read-write module and the second read-write module. According to the application, the carriage is driven to move through the displacement of the carriage, the rail friction force is converted into pneumatic power, the read-write module is driven to identify the RFID tag of the rail in real time, and the real-time performance and accuracy of data acquisition are improved; the track structure accessories and the overhead cable are covered through the double read-write modules at the same time, comprehensive monitoring is ensured, the track maintenance efficiency is improved, and safe operation is guaranteed.

The utility model relates to a live cleaning device for overhead cables, and belongs to the technical field of power cable cleaning tools. Comprising a base, symmetrical sliding assemblies are fixedly connected to one side of the upper end of the base, and symmetrical cleaning assemblies are fixedly connected to the other side of the upper end of the base; the cleaning assembly comprises a motor, a rotating shaft, a cleaning hook, a spring and a push plate, the motor is fixedly connected with the upper end of the base, the rotating shaft is connected with an output shaft of the motor, the cleaning hook is fixedly connected to one end of the rotating shaft, the spring is fixedly connected to the inner side of the cleaning hook, and the push plate is fixedly connected with one end of the spring. The cleaning assembly is arranged to clean the cable, the cleaning hook can directly hook out sundries, the cleaning effect is good, and the cable is not prone to being damaged; the micro motor is arranged to drive the pulley to slide on the cable, so that danger and inconvenience caused by manual pulling of the device are avoided.

The invention provides a large-span overhead cable deicing method, device and equipment and a storage medium, and the method comprises the steps: collecting a cable image of a large-span overhead cable, recognizing an icing region of the large-span overhead cable based on the cable image, and determining a boundary point corresponding to the first end direction of the cable in the icing region as a first scanning starting point; setting a scanning end point based on the wind power influence degree and the relative fog concentration of the first end relative to the second end, and determining an icing area between the first scanning starting point and the scanning end point as a scanning range of the first end, thereby determining a boundary point corresponding to the direction of the second end in the icing area as a second scanning starting point, and determining an icing area between the second scanning starting point and the scanning ending point as the scanning range of the second end, and controlling the deicing equipment to deice along the scanning range according to the icing area, thereby realizing intelligent adjustment of the scanning proportion of the deicing equipment at the two ends of the cable, and ensuring the safety and effectiveness of the deicing task under the complex weather conditions of wind, fog and the like.

The invention discloses a crossed spanning pay-off insulation supporting device for a power transmission line and a use method, relates to the technical field of power transmission line pay-off, and aims to solve the problems of poor insulativity, low adaptability, insufficient protection and early warning deficiency of a traditional device, and a supporting part is unfolded and folded through an electric driving structure to form stable triangular support; the stringing component is matched with a guide structure, a pulley structure and an anti-falling structure, so that the overhead cable is ensured to be stable and not easy to fall off during traction; the auxiliary centering assembly corrects the transverse deviation of the overhead cable and slows down wind vibration by means of a spring, gas buffering and electromagnetic effects; when the load is too large, the side insulation pull rod can disperse the pressure to the main supporting part, and meanwhile the load state is pre-warned through color marks. The simple offset state and the continuous friction jamming state of the overhead cable can be distinguished through the color change of the special thin film, and the device is suitable for complex outdoor scenes, improves the construction safety and efficiency, and is convenient to operate and high in portability.

The invention discloses a traction hanging type grounding wire device, and belongs to the technical field of electrical safety. The device comprises a rapid hanging mechanism, the rapid hanging mechanism abandons a traditional structure adopting pressing, rotating and other modes to conduct locking, and a traction mode is adopted to drive a locking assembly composed of a traction piece, a locking rod and a torsional spring shaft to act so as to control opening and locking of a U-shaped hanging connector. According to the mode, external traction force is matched with the gravity of the device, the U-shaped hanging connector can be rapidly hung on the overhead cable, the hanging efficiency is improved, manual pole climbing operation is not needed, the operation safety risk is reduced, the traction force is provided by external equipment, the external equipment is preferably an unmanned aerial vehicle, and certainly, the traction force is provided by the external equipment. Equipment capable of providing traction force, such as a long-arm rod, can also be provided; therefore, according to the grounding wire device in the scheme, a traditional manual pole climbing hanging mode is replaced with a traction hanging mode, the hanging efficiency and safety are improved, and the grounding wire device has remarkable economic benefits.

The invention discloses an aerial cable line loss intelligent detection system and method based on an unmanned aerial vehicle, and relates to the technical field of electric power inspection. The problems that a traditional line loss detection system lacks comprehensive perception ability to a complex environment and cannot adaptively switch a flight detection mode and a close-range attachment detection mode are solved. Comprising an unmanned aerial vehicle body, a cable acquisition module, a line loss intelligent detection module, a data processing module and an unmanned aerial vehicle control module, a flight detection mode and a hanging detection mode can be intelligently switched, a multi-mode sensor is arranged, and combined acquisition and analysis of cable images, sound waves and magnetic induction data are achieved; abnormal points are extracted through algorithms such as image edges, thermal aberration, spectrum features and magnetic field disturbance, adaptive correction is performed in combination with the environment drift degree for fusion judgment, line loss grade classification and multi-source detection report output are achieved, and the detection precision, safety and environment adaptive capacity are effectively improved.

1. Name of the product in this design: Protective device for bare conductors of overhead cables. 2. Purpose of this design: For the protection of overhead cables. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention relates to the field of overhead cable technology and discloses a lightweight and wear-resistant overhead cable, comprising a cable body and a vibration mechanism installed on the outside of the cable body for de-icing when ice forms on the cable body surface. The vibration mechanism includes a fixed ring installed on the outside of the cable body, with a vibration component rotatably mounted on its outer circumference; and a heating wire installed inside the cable body for heating its surface. The fixed ring is made of a thermally conductive material. This invention uses a heating wire to heat the cable body surface to melt accumulated snow, preventing snow from damaging the cable body. The rotating and fixed rings then vibrate the cable body to shake off residual snow, improving the snow removal effect.

The utility model discloses a cable cleaning device for municipal engineering relates to cable cleaning technical field, including cleaning box, the downside fixed connection of cleaning box has dust collection box, the front and back both sides center position of cleaning box all are fixedly installed with push rod, and the output of push rod penetrates the outside of cleaning box and is fixedly connected with the push board, and the inside of push board is provided with the sliding slot, and the upper and lower sides of push board all are provided with the limiting slot of penetration, and the inside of limiting slot is slidably connected with the sliding rod through the sliding block, and the outside right -hand member of push board is fixedly installed with drive motor, and the output of drive motor penetrates the outside of push board and is fixedly connected with the curved wheel. The utility model discloses a cleaning box, push rod, push board, sliding slot, sliding rod, drive motor, curved wheel, spring and brush can be effectively cleaned to different specifications overhead cable, prevent dust accumulation on the cable surface and form dirt, avoid dirt to cause corrosion or damage to the insulating layer of cable, effectively slow down the aging of line.

The application discloses a safety lock buckle applied to overhead cable maintenance, which comprises a lock buckle body and a safety rope, one end of the safety rope is connected with the lock buckle body, the other end is used for being fixed on a working personnel, the lock buckle body comprises a lock buckle fixing part, a sliding block and two clamping parts, the lock buckle fixing part is provided with a threading hole for threading an overhead cable, the two clamping parts are arranged at the top of the threading hole in a horizontal direction, the sliding block is slidingly arranged on the lock buckle fixing part, and the sliding block is elastically connected with the lock buckle fixing part, and the bottom of the sliding block forms an abutting surface for abutting against the overhead cable. When the working personnel falls, the overhead cable moves to the position between the two clamping parts. Under the clamping action of the clamping parts, the lock buckle body is fixed at a certain position of the overhead cable. The working personnel can climb along the safety rope to the overhead cable to perform self-rescue, and the safety of high-altitude operation is improved.

The invention relates to the field of cable installation, and particularly discloses a cable overhead installation guide device arranged in a cable well, which comprises a rotating bracket, an expansion type fixed column and a guide pulley, the rotating bracket comprises two straight brackets of which the end parts are rotationally connected; the guide pulley is detachably arranged at the rotating joint of the rotating bracket; the interior of the fixing column is hollow, the fixing column is horizontally arranged on the straight support in a sliding mode, the fixing column is inserted into a cable pipeline of the cable well, and the fixing column can expand and be fixed into the cable pipeline. The invention aims to solve the technical problem of ensuring the fixing stability of the whole guide device.

The invention discloses an inspection device for an overhead cable, and the device comprises a flight body which is provided with an obstacle avoidance camera and a sub-controller; the inspection structure is mounted on the flight body, the inspection structure comprises an inspection camera and an inspection driving assembly, and the inspection driving assembly is connected with the inspection camera to drive the inspection camera to rotate around the cable for shooting; the marking structure is installed on the flying body, the marking structure comprises a marking assembly and a marking driving assembly, the marking driving assembly is connected with the marking assembly, and the marking assembly marks the cable in the circumferential direction; the obstacle avoidance camera, the inspection camera, the inspection driving assembly, the marking assembly and the marking driving assembly are respectively connected with the sub-controller. Obstacles are recognized through the obstacle avoidance camera, the inspection driving assembly is adopted to control the inspection camera to rotate to comprehensively shoot the cable, and the cable is circumferentially marked through the marking assembly, so that maintenance personnel below can more easily see marks.