6622 results about "Electric wire" patented technology

The invention relates to the technical field of cross-linked polyethylene cable accessories, and discloses a cross-linked polyethylene insulated cable overhead installation device which comprises a wire supporting rod, a hoisting steel cable, a cross-linked polyethylene insulated cable and a driving assembly, the driving assembly comprises a steel cable clamping block and a cable clamping block, and a steel cable pulley and a cable pulley which are vertically symmetrical are arranged in the driving assembly; a pushing assembly is arranged at the top of the steel cable clamping block and comprises a supporting transverse plate, a first telescopic rod, a rectangular frame, an upper supporting rod and a lower supporting rod, and locking clamps are sleeved outside the supporting transverse plate, the first telescopic rod, the rectangular frame and the upper supporting rod. When the driving assembly is pulled, the roller encoder measures the distance and controls the distance; the pushing assembly drives step by step, the steel cable clamping blocks are fixed firstly, then the cable clamping blocks are pushed by the same distance and then fixed, the clamps are pulled in a matched mode to be tightened, the device achieves accurate control over the distance between the clamps and the looseness of the cables, the cables are prevented from being too loose and abraded or too tight and damaged, the water blocking function is protected, the line stability is improved, and the operation and maintenance cost is reduced.

The invention discloses a crimping test device for an electric connector, a lifting structure is rotatably connected with a lifting plate, a rotating shaft is also provided with a swing structure, a floating piece is fixed below the lifting plate, a base is slidably provided with a placing plate through two transverse rails and transverse slide blocks, the placing plate is provided with a terminal clamp, and the terminal clamp is provided with a terminal. A connector terminal is fixed to the terminal clamp, an electric wire of the connector terminal is fixed to a cable fixing piece, a vibrating piece is installed on the rear side transverse sliding block, the floating piece is in sliding connection with the vibrating piece, and a driving piece is installed on the swing structure in a sliding mode. The lifting plate does up-and-down reciprocating rectilinear motion under the action of the speed reducer through the lifting structure, so that the cable fixing piece can do up-and-down reciprocating motion, an electric wire fixed on the cable fixing piece can be continuously straightened and loosened upwards, and the state that the electric wire on the connector terminal is suddenly pulled is simulated.

The invention relates to the technical field of wires and cables, and particularly discloses a wire and cable test system based on sensor data acquisition, which comprises a data acquisition module, an intelligent analysis module and a function output module. The intelligent analysis module integrates technologies such as multi-modal signal blind source separation, mechanism-data hybrid drive deep learning, federated learning and digital twinborn linkage and self-supervised learning optimization, and forms a layer-by-layer progressive analysis system. Interference components are effectively eliminated through a signal separation technology, meanwhile, the adaptability of the model to different working conditions and different cable types is improved by means of fusion of mechanisms and data, model collaborative optimization under multi-site data privacy protection is realized through federated learning, and a self-supervised learning-driven digital twinborn evolution mechanism is combined, so that the multi-site data privacy protection model is optimized. The problems that a traditional analysis technology is insufficient in generalization ability, simulation precision is prone to drifting, and privacy risks exist in data sharing are solved, and the accuracy of fault recognition and the long-term adaptability of the system are remarkably improved.

The invention relates to the technical field of electric wires and cables, discloses a high-elasticity waterproof cable based on blending of water-blocking powder and an elastomer, and aims to solve the problems that in the prior art, during long-term dynamic service, interlayer separation is easily caused by interfacial stress superposition, so that elasticity attenuation and waterproof barrier damage are caused, and the service life is affected. According to the invention, the sodium polyacrylate water-blocking powder is subjected to composite modification and is blended with an elastomer matrix, modified nano silicon dioxide is matched for dispersion, an inner and outer layer gradient insulation structure is designed, and ultrasonic dispersion, nitrogen protection steam cross-linking and other processes are combined; the cable is sequentially provided with the conductor layer, the conductor shielding layer, the gradient insulation layer, the insulation shielding layer and the sheath layer from inside to outside, interface stress concentration is reduced, interlayer combination stability is enhanced, and the cable can still keep excellent elastic recovery capability and waterproof barrier integrity under high-frequency torsion and repeated dry-wet cycles.

The invention relates to the technical field of intelligent power grids, in particular to a low-voltage draw-out type switch cabinet which comprises a cabinet body, a power grid arranged on the inner side wall of the cabinet body, a heat dissipation plate arranged on the inner side wall of the cabinet body, a plurality of static contacts arranged on the inner side wall of the cabinet body and a cleaning mechanism arranged on the inner side wall of the cabinet body and used for cleaning the power grid. The cleaning mechanism comprises two first electric sliding rails arranged on the inner side wall of the cabinet body, according to the low-voltage draw-out type switch cabinet, the overturning plate is driven by the first motor to rotate at multiple angles, the spraying head can evenly cover the outer corners of the cabinet body after the insect repellent is atomized, reptiles are dispersed from the source, and the low-voltage draw-out type switch cabinet is convenient to use. The cleaning mechanism can be quickly started, heat dissipation blocking and equipment faults caused by accumulation of dead insects are prevented, and it is guaranteed that the low-voltage draw-out type switch cabinet is always kept in a safe and stable working state in long-term operation.

An electrical line selection system comprising a circuit module configured to connect energy sources with multiple line outputs. The circuit module has a number of inputs configured to connect to energy sources, including rechargeable battery systems, and a number of outputs configured to connect with other electrical systems such as other battery systems, loads, charging sources, and various AC or DC power supplies. A switching circuit is contained by the circuit module and a controller manages the switching circuit based on desired connections and strategies for managing power supplies and current sinks.

The invention relates to the technical field of power distribution. The invention discloses a power distribution cabinet wire fault detection and identification method, which is characterized in that a plurality of wires with different specifications are arranged in a power distribution cabinet, and the method comprises the following steps: obtaining real-time operation parameter data of the plurality of wires, and determining a fault wire based on a reference parameter set of normal work of a to-be-detected wire and a deviation characteristic value relation of real-time parameters; fault parameter data of the faulty electric wire are input into a multi-layer fault identification model, the model comprises a plurality of sub-identification units connected in sequence, each unit detects different types of faults, and finally a fault mode is obtained. According to the method, at least three parameters are acquired through distributed sensing, and data reliability is guaranteed through noise reduction and normalization processing. On the basis of a double-threshold criterion and dynamic weight calculation, faulty electric wires are accurately distinguished, and misjudgment and missed judgment are completely eradicated. The multi-layer model carries out progressive detection, an emergency fault is preferentially recognized, and the sub-recognition units are matched with an exclusive algorithm to improve the accuracy.

The invention discloses an insulated wire, a coil and electronic / electrical equipment, and relates to the technical field of insulated wires. The modified polyamide-imide insulating layer is composed of an insulating material obtained by reacting diisocyanate with mixed anhydride, wherein the mixed anhydride comprises short-chain anhydride and long-chain anhydride. According to the insulated wire coated with the polyamide-imide insulating layer, the wire flexibility is improved, the insulated wire is suitable for closer arrangement of complex groove types, and then the motor groove fullness rate is improved, so that the size of a stator iron core is reduced under the same power, the motor weight is indirectly reduced, and the requirement for light weight is met.

The invention discloses a preparation method of an insulated wire. Specifically, the method comprises the following steps: annealing a rolled conductor to obtain an annealed conductor; the periphery of the annealed conductor is coated with insulating paint to form a first prefabricated core wire, the first prefabricated core wire coated with the insulating paint is subjected to high-temperature curing to form an insulating layer, and a second prefabricated core wire is obtained; the outer side of the insulating layer of the second prefabricated core wire is coated with finish paint containing a modified polyamide-imide intermediate to form a third prefabricated core wire, the third prefabricated core wire coated with the finish paint is subjected to high-temperature curing to form a finish paint layer on the outer side of the insulating layer, and the insulated wire is further obtained. The insulated wire provided by the invention improves the wire flexibility, adapts to closer arrangement of complex slot types, and further improves the slot fullness rate of a motor, thereby reducing the size of a stator core under the same power, indirectly reducing the weight of the motor and meeting the requirement of light weight.

The invention provides a monitoring structure and method for highway geological survey, and relates to the technical field of wave signal distance measurement. The monitoring structure comprises four first monitoring units, a plurality of second monitoring units and a signal processing and analyzing unit, the four first monitoring units serving as reference points are non-collinear and non-coplanar, the first monitoring units are provided with transmitting ends for transmitting wave signals, the second monitoring units comprise monitoring lines, a plurality of monitoring balls are detachably connected to the monitoring lines, and the signal processing and analyzing unit is connected with the signal processing and analyzing unit. A receiving end for receiving wave signals is arranged in the monitoring ball, an electric wire electrically connected with the receiving end is arranged in the monitoring line, and the signal processing and analyzing unit is electrically connected with the receiving end and the transmitting end. The monitoring method comprises the following steps: burying the second monitoring unit into the soil body, generating a three-dimensional space coordinate system, and tracking the position of the monitoring ball to achieve the purpose of monitoring the slippage of the soil body. According to the invention, the plurality of monitoring balls are buried in the soil body, and the purpose of monitoring the slippage of the soil body is achieved by monitoring the positions of the monitoring balls.

The invention relates to the technical field of wire installation, and particularly provides a strain clamp of a power transmission line, which comprises a shell and two wedge blocks. A wedge-shaped through groove is formed in the shell in the length direction of the shell. A baffle is arranged on the side edge of a groove opening of the through groove, a force storage barrel is arranged on the baffle, and the force storage barrel is connected with a tensioning rope. The two wedge blocks are oppositely arranged in the through groove, and a power transmission line is clamped between the two wedge blocks; a rotating shaft is arranged on the wedge block opposite to the baffle and is connected with the opposite tensioning rope; and the rotating shaft is in frictional contact with the power transmission line and rotates when the power transmission line slides relative to the wedge block, so that the tensioning rope is wound around the rotating shaft. According to the scheme, by arranging the force storage cylinder, the rotating shaft and the tensioning rope, when the power transmission line slides relative to the wedge block, the rotating shaft is driven to rotate through the friction effect, so that the tensioning rope is wound around the rotating shaft, the friction resistance among the shell, the wedge block and the power transmission line is improved, the clamping effect on the power transmission line is improved, and the falling risk of the power transmission line is reduced.

The invention discloses a wire and cable with anti-bending performance and a preparation method thereof. The wire and cable comprises a conductor structure, an insulating layer, a hot melt adhesive bonding layer, an armor layer, a filling strip and a sheath, the sheath is internally provided with a plurality of groups of conductor structures which are annularly distributed, the outer side of each conductor structure is sequentially wrapped with an insulating layer, a hot melt adhesive bonding layer and an armor layer, each conductor adopts an inner layer high-strength fiber core and an outer layer multi-strand thin copper wire alternate twisting structure, and the flexibility characteristic of the thin copper wires reduces the stress during bending; the conductive metal is mainly subjected to elastic deformation instead of plastic deformation in the bending process in cooperation with a leftward and rightward alternate twisting mode, and the inner-layer aramid fibers or galvanized steel wires form skeleton type support to bear most of tensile force borne by the cable, so that stress concentration of a single conductor is avoided; the armor layer is formed by weaving stainless steel microwires and is fixed through local laser welding, and the interlayer fixing design of hot melt adhesive bonding is combined, so that interlayer sliding is prevented, and the tensile strength of the armor layer is improved.

The invention relates to the technical field of electric wires and cables, and discloses a fluoroplastic insulating high-temperature-resistant fireproof cable and a preparation method thereof.The cable comprises a conductor layer, the conductor layer is formed by twisting multiple strands of copper wires, the periphery of the conductor layer is coated with a fluoroplastic insulating layer, the periphery of the fluoroplastic insulating layer is coated with a shielding layer, and the shielding layer is arranged on the periphery of the conductor layer. The shielding layer is of a copper strip braided structure, the periphery of the shielding layer is coated with an armor layer, the armor layer is braided by stainless steel wires, the periphery of the armor layer is coated with a sheath layer, and the sheath layer comprises the following components in parts by mass: 50-70 parts of functionalized ethylene-tetrafluoroethylene copolymer. According to the invention, an interpenetrating polymer network formed by in-situ crosslinking of the functionalized fluoropolymer and the organosilicon elastomer is constructed in the sheath layer, and an energy field gradient response vulcanization process is adopted, so that the prepared cable sheath maintains the inherent high temperature resistance of fluoroplastic, and the flexibility and mechanical strength of the material are improved at the same time.

The invention discloses an oxidation kettle and a method for preparing an isocaprylic acid intermediate product sodium isocaprylate, the oxidation kettle comprises a kettle body and a jacket fixedly sleeved outside the circular outer part and the bottom end of the kettle body, a sealing seat is arranged at the center of the top end of the kettle body, a speed reducer is fixed at the top end of the sealing seat through a flange and a screw, and a speed reduction shaft of the speed reducer penetrates through the sealing seat; a speed reducer is arranged in the kettle body, the top end of the speed reducer is in transmission connection with a stirring motor, the stirring motor is electrically connected with an external power supply through an electric wire, and a stirring shaft is vertically arranged at the center of the kettle body. According to the device, the stirring effect on fluid in the kettle body can be enhanced through automatic up-down swinging of the metal stirring rollers, synchronous swinging of the multiple stirring rollers is achieved through the linkage mechanism, stable and controllable swinging action is ensured through the driving mechanism, the mixing uniformity and reaction efficiency of materials in the oxidation kettle are remarkably improved, and the production cost is reduced. And the stirring requirements of high-viscosity and easily-layered materials are met. The oxidation kettle can be used for preparing an isocaprylic acid intermediate product sodium isocaprylate.

A heating device includes: a rotator; a heater extending in a first direction to heat the rotator; a temperature detector to detect a temperature of the heater; a holder holding the temperature detector; an electric wire; and a biasing member to bias the temperature detector toward the heater via the holder in a second direction intersecting the first direction. The holder includes: a pair of supports parallel to each other in a third direction intersecting the first direction and the second direction, the pair of supports extend in the first direction; a wiring space between the pair of supports and accommodatable a part of the electric wire; and a slit between the pair of supports and communicating with the wiring space, the slit being insertable the electric wire to the wiring space.

To electrically connect a plurality of wires to a crimp connection terminal.SOLUTION: In a crimp connection terminal 5, a connection end 5a, a conductor crimp part 5b, a coating crimp part 5c and a connection plate 5e are disposed successively from the front. Only a specified wire 2a of a flat type wire 1 extends long, a conductor 3 is peeled from an insulating coating layer 4 and crimped by the conductor crimp part 5b, and the insulating coating layer 4 is crimped and fixed by the coating crimp part 5c. Regarding wires 2b-2i other than the specified wire 2a of the flat type wire 1, conductors 3 thereof are peeled from the insulating coating layer 4, placed on the connection plate 5e and welded to the connection plate 5e. The wires 2a-2i are electrically connected to a mating connection end via the connection end 5a.SELECTED DRAWING: Figure 4

The invention belongs to the technical field of electrical equipment safety monitoring, and provides an intelligent wire and cable distributed optical fiber temperature measurement early warning method and system, and the method comprises the steps: laying a distributed optical fiber temperature sensor network along a cable, and synchronously demodulating the temperature and strain information based on a distributed optical fiber sensing principle; the temperature, the strain information and the load current are uploaded to a cloud platform through a wireless communication module; operating a time-space fusion diagnosis model driven by a cable physical mechanism on a cloud platform to distinguish and position an abnormal overheating section caused by a current Joule heating effect, insulation loss or contact resistance dramatic increase; and after the abnormity is confirmed, the cloud platform generates a control instruction for the abnormal overheating section to cut off power supply, and an intelligent self-healing process can be started. According to the invention, physical root identification, accurate positioning and safe self-healing of the cable overheating fault are realized, and the safety of cable operation is greatly improved.

An electrical junction box includes a case; a circuit unit; a wire harness for connecting another device with the circuit unit; a first terminal supporting a first electric wire electrically connected to the circuit unit; and a second terminal supporting a second electric wire electrically connected to the circuit unit. When a direction along one side of the first surface is defined as a left-right direction and a direction along the other side of the first surface is defined as an up-down direction, the first terminal and the second terminal are located in a first region on one side in the left-right direction with the part of the wire harness as reference, and the first terminal and the second terminal are at different positions from each other in the up-down direction in the first region.

A wire housing assembly includes a housing and a wire. The housing includes a first swaging groove and a second swaging groove. A wire is excised such that a plurality of signal conductors are exposed, and rest within the first swaging groove and the second swaging groove. A wire jacket extends from a signal conductor to a first excise point. An additional portion of the wire jacket extends from a second excise point to the end of the housing. A cavity in the housing contains the additional portion of the wire jacket. The signal conductors are anchored in between the first excise point and the second excise point. The signal conductors are swaged into place by melting the first swaging groove and the second swaging groove via an ultrasonic welder. A sensor may then contact the signal conductors.

An object is to provide a wire stripper. The wire stripper includes: a wire stripper body having a first member, a second member and a first passage; a blade body attached to the second member and configured to separate the sheathed wire into a sheath layer and a core wire; a press plate part arranged to the first member so as to face the blade body and having a press surface configured to press the sheathed wire against the blade body; and a distance adjusting member configured to adjust the distance between the first member and the second member. The first member has a first guide part defining a part of the first passage and configured to guide relative motion of the wire stripper body relative to the sheathed wire. The press plate part protrudes on the first passage side from the first guide part.

The invention relates to the field of electric wires and cables, and discloses a high-temperature-oxidation-resistant flame-retardant electric wire and cable and a preparation method thereof.The sheath layer of the electric wire and cable comprises low-density polyethylene, nitrile rubber, natural rubber, ethylene-tetrafluoroethylene copolymer, modified multi-walled carbon nanotubes, modified nano titanium dioxide and auxiliaries; the modified multi-walled carbon nanotube is prepared by reacting an acylating chlorination multi-walled carbon nanotube with a polycyclotriphosphazene derivative; the polycyclotriphosphazene derivative is prepared by reacting hexachlorocyclotriphosphazene with p-aminodiphenylamine and then taking diphenyl dihydroxysilane as a linker; the modified nano titanium dioxide is prepared by the following steps: substituting phenylphosphoryl dichloride with phloroglucinol, then sequentially substituting with 3-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl chloride and 3-aminopropyltriethoxysilane, and grafting an obtained antioxidant phosphorus-containing coupling agent with nano titanium dioxide. The sheath layer material prepared by the invention has excellent high-temperature oxidation resistance, flame retardance, wear resistance and heat resistance.

The utility model belongs to the technical field of refrigerators, and discloses a refrigerator wiring structure, a refrigerator and a vehicle. Specifically, the refrigerator wiring structure comprises a refrigerator framework, an inner container and an electric wire. A containing space is formed in the refrigerator framework. The inner container is arranged in the containing space. The electric wire comprises a first section, and the first section is arranged between the inner container and the refrigerator framework. The first section of the electric wire is arranged between the inner container and the refrigerator framework, the area between the refrigerator framework and the inner container is effectively utilized, the external space occupied by wiring arrangement of the electric wire on the outer side of the refrigerator framework is reduced, the total space occupied by the refrigerator is reduced, and the size of the refrigerator is convenient to control.

An improved telegraph pole double-porcelain-bottle anti-bird hard insulating sheath capable of being installed in an electrified mode comprises two porcelain bottle sleeves used for wrapping the tops of porcelain bottles, one side of each porcelain bottle sleeve is provided with an outer side electric wire sleeve used for wrapping an electric wire, and the other side of each porcelain bottle sleeve is provided with telescopic electric wire sleeves which are in butt joint with each other and are symmetrical to the outer side electric wire sleeves. The lower end of the porcelain insulator sleeve is provided with an opening corresponding to the upper part of the porcelain insulator, the lower edge of the outer wire sleeve and the lower edge of the telescopic wire sleeve are provided with a slit communicated with the opening at the lower end of the porcelain insulator sleeve, and the two edges of the slit are respectively provided with a butt joint edge extending downwards; a mounting plate is arranged on each porcelain insulator sleeve, and a mounting hole is formed in each mounting plate; the opposite sides of the two butt joint edges are connected with clamping plates through elastic bodies respectively. The insulating sheath is made of a hard insulating material. The utility model has the advantages that the wire clamp can be suitable for wires with larger or smaller diameters, the applicability is greatly improved, the requirement on the elasticity of raw materials is reduced, and the wire clamp can be made of harder insulating materials.

The invention discloses a control method and equipment for a full-control device clamping circuit, and relates to the technical field of full-control device clamping circuits, and the method comprises the steps: determining a product of a reflection voltage oscillation period and a time coefficient, and enabling the product to be a reference time interval of a corresponding bridge arm; in a same-bridge-arm inner and outer tube double-turn-on scene or a same-bridge-arm inner and outer tube double-turn-off scene, acquiring an instantaneous current of a current bridge arm; determining an actual time interval according to the reference time interval and the time interval adjustment amount; and controlling the current bridge arm based on the actual time interval. The current bridge arm is controlled by determining the actual time interval through real-time adjustment, overvoltage of a full-control device is prevented, the reflection voltage of the load end is reduced, and insulation of the load and the electric wire is protected.

A lighting system comprising at least one bulb assembly, an integrated switching power supply, a plurality of electrical wires electrically connecting the bulb assembly to the power supply, and male / female connectors. The bulb assembly has a housing including a light source disposed on a surface of a printed circuit board (PCB), at least one processor provided on the PCB, at least one electrical connector disposed on another surface of the PCB and configured to connect to the plurality of wires, and a means for sealing the housing against water ingress.

The utility model provides an insulation grounding device for power substation construction, which belongs to the technical field of substation grounding construction and comprises an insulation cylinder, a ground cone is fixedly connected to the bottom of the insulation cylinder, a grounding column is embedded in an inner cavity of the ground cone, and connecting columns moving oppositely are symmetrically arranged in the inner cavity of the insulation cylinder. The inner cavity of the insulating cylinder is provided with an opposite linkage assembly for driving the two connecting columns to be in butt joint with the conductive disc and the grounding column respectively, and the two connecting columns are in butt joint with the conductive disc and the grounding column respectively, so that the electric wire is grounded, current is led to the ground through the electric wire, and safe grounding of electrical equipment under normal and fault conditions is ensured; according to the utility model, the device is simple in structure and convenient to carry, prevents electric shock danger during equipment electric leakage, can be directly installed at a corresponding position through the ground cone during construction, forms an integrated structure with the ground cone, brings convenience to the construction process, and further guarantees the efficiency of the construction process of the transformer substation.

A charging inlet (1) comprises: a plurality of terminals (10) for power supply; an inlet housing (20) that holds the plurality of terminals (10) with tip end portions (11) thereof exposed to the outside; a rear case (40) that is connected to the inlet housing (20); a plurality of inner terminals (70) that are individually connected to base portions (12) of the plurality of terminals (10), inside the rear case (40), and are individually connected to the ends of a plurality of electric cables (100) introduced from the outside; and a filling portion (80). The rear case (40) includes: an accommodating portion (41) that accommodates, at least, the base portion (12) of each of the plurality of terminals (10) and the plurality of inner terminals (70); and fins (43e) that are exposed to the outside. The filling portion (80) is molded or configured from an insulating filler that fills the remaining part of the accommodating portion (41). The material of the rear case (40) is an electrically insulating thermally conductive resin obtained by filling a thermoplastic resin with a carbon-based or ceramic-based filler.

A wire harness includes: an electric wire; a plate spring member; a sheath member; and a protector that integrally holds an end part of the sheath member and portions of the electric wire and the plate spring member led out from the end part of the sheath member. The protector includes: a protector main body having a routing space part where the electric wire, the plate spring member, and the sheath member are routed; and a lid part that closes the routing space part. The routing space part is provided with: a pair of regulation parts that supports both ends of the routed plate spring member, and regulates a height position of the plate spring member in the protector with respect to a height direction; and a housing recessed part that is located between the pair of regulation parts and houses an excess portion of the sheath member.

The invention discloses a shared charging pile authorization payment system and an implementation method, and belongs to the technical field of shared charging piles, and the system comprises a plurality of user terminals, a cloud management platform, a charging pile control terminal and a plurality of shared charging piles. The user side receives an operation request of a user; the cloud management platform generates a cloud instruction based on the operation request; the charging pile control end controls the shared charging pile according to the cloud instruction; the shared charging pile comprises a temperature detection module, an electric energy metering module and an MCU. The temperature detection module detects the temperature of a data processing chip of the shared charging pile or the temperature of the internal environment of the shared charging pile; the electric energy metering module collects state parameters of the shared charging pile, and a metering chip in the electric energy metering module sends the state parameters to the MCU. Each charging process is metered through the metering chip, the utilization rate of the charging pile is improved, the installation number and installation cost of private charging piles and the number of erected wires are reduced, and the probability of safety fire protection risks is reduced.

The invention discloses a power transmission line iron tower and a power transmission line tower system, and relates to the technical field of power towers, the power transmission line iron tower comprises a tower body and a supporting assembly, the supporting assembly comprises a supporting frame arranged on the side face of the tower body, insulators are hinged to the two sides of the end of the supporting frame through hinge bases, and connecting bases are arranged at the ends, away from the supporting frame, of the insulators; the end part of the connecting seat is provided with an arc-shaped surface, electric wires are correspondingly erected on the two sides of the supporting frame, the opposite ends of the electric wires on the two sides are connected through a connecting assembly, the fixing assembly comprises a supporting groove seat, a fixing groove seat is arranged at the bottom of the supporting groove seat, a detection assembly is arranged at the top of the supporting groove seat, and the detection assembly comprises a roller. The swing amplitude of the wire is effectively limited, looseness of the wire fixing position caused by excessive swing is prevented, in addition, long-time continuous fixing of the wire is effectively guaranteed, and the situation that the fixing effect of the wire is reduced due to abrasion and aging of the fastener is avoided.