905results about "Cable installation apparatus" patented technology

A novel connection port is described for connecting a signal transmitter to an apparatus configured to wirelessly communicate video and images from a pipe inspection system. Such a connection port may establish an electrically conductive pathway to a push-cable and camera head further disposed in cable storage drum that the wireless communication apparatus may couple thereto. A signal transmitter, having an established electrically conductive pathway to the push-cable and camera head, may transmit electromagnetic signals that may be emitted by the push-cable and camera head and further be located at the ground surface via a utility locator device.

The invention provides a multifunctional inspection device detection system based on a distribution network mobile operation terminal, and relates to the technical field of electric power detection, and the multifunctional inspection device detection system comprises a portable main terminal of a dynamic collaborative architecture, a wearable terminal for augmented reality interaction and a distributed heterogeneous sensing cluster, which form a closed-loop data chain through an electric power dedicated low-delay wireless communication network; the portable main terminal is integrated with a heterogeneous computing unit with adaptive computing power distribution, can perform real-time fusion analysis on multi-dimensional sensing data, and outputs a visual result containing fault location and confidence; the wearable terminal superposes fault information to a real scene in a three-dimensional marking form through a virtual-real fusion positioning technology, and supports eye movement and voice collaborative interaction; multi-module collaborative acquisition of the distributed heterogeneous sensing cluster is combined with a nanosecond timestamp synchronization mechanism, so that the limitation of traditional single parameter detection is broken through, rich and synchronous basic data is provided for subsequent analysis, and the comprehensiveness of routing inspection is greatly improved.

The invention provides a power distribution network fault intelligent positioning and self-healing recombination method and system. The method comprises the steps that S1, operation data of a power distribution network are acquired and preprocessed; s2, modeling the power distribution network topology into a weighted undirected graph, and constructing transient characteristics including node characteristics and edge characteristics; s3, on the basis of the transient characteristics and the power distribution network topology, the fault type is judged in real time by adopting a graph convolutional network, and a fault section is determined in combination with a traveling wave distance measurement and impedance method; s4, when entering an isolation fault state, automatically generating a power supply reconstruction scheme meeting current, voltage and switch constraints, and selecting an optimal scheme through multi-objective optimization; and S5, issuing a switching instruction according to the optimal scheme to complete topology reconstruction, and updating a fault identification and recombination strategy according to an actual execution result to improve positioning precision and recovery efficiency. According to the invention, a novel fault processing scheme integrating multi-source measurement, an efficient algorithm and online learning can be adopted, so that the power failure time is shortened, the power failure range is reduced, and the toughness of the power distribution network is improved.

The utility model discloses a power cable trench cleaning and maintaining device, which relates to the technical field of power cable laying, and is characterized in that through the arrangement of a mounting disc, a movable cleaning brush and a connecting piece, a worker can pull the movable cleaning brush to enable the movable cleaning brush to slide along the radial direction of the mounting disc in the using process, so that the movable cleaning brush can be cleaned; the positions of the movable cleaning brushes are adjusted, after adjustment, the cleaning range formed by the multiple movable cleaning brushes is changed, the cleaning range of the power cable trench cleaning and maintaining device is expanded or narrowed, the power cable trench cleaning and maintaining device is used for completing cleaning operation of cable trenches with different widths, and a good using effect is achieved in the actual using process. The application range of the power cable trench cleaning and maintaining device is expanded, the movable cleaning brush can be limited through the first fastening bolt after adjustment, so that the movable cleaning brush and the mounting disc are fixed, the cleaning range in the using process is fixed, and range change caused by movement of the movable cleaning brush is avoided.

The invention discloses a cable grid bridge system and a manufacturing method, and the cable grid bridge system comprises a turning bridge which is composed of a plurality of bridge units which are arranged in a divergent manner, and an inner arc-shaped structure and an outer arc-shaped structure are formed; each bridge unit comprises two parallel U-shaped wefts and a plurality of radial line units, each U-shaped weft is composed of an outer vertical beam, a bottom beam and an inner vertical beam, and each radial line unit comprises a bottom radial line unit, an outer diameter line unit and an inner diameter line unit which are respectively connected to different parts of the corresponding U-shaped weft; the outer diameter line units are connected to form a continuous bridge outer diameter line; the inner vertical beams of the adjacent bridge units abut against each other, the inner diameter line unit is provided with two ends, reinforcing ribs are welded between the bottom beams, a bridge bottom diameter line is formed, and therefore the turning bridge system and the manufacturing method are low in cost and convenient to manufacture.

In an example, an anti-shrink back device is positionable at least partially around insulation of an electrical conductor at an end of the insulation adjacent to an uninsulated segment of the electrical conductor. The anti-shrink back device includes a band mechanically tightenable at least partially around the insulation at the end of the insulation adjacent to the uninsulated segment to secure or inhibit movement of the end of the insulation longitudinally relative to the electrical conductor.

The utility model discloses a submarine cable center clamp falling maintenance device which is used for fixing a J-shaped pipe and a submarine cable and comprises a horn mouth clamp, an adapter flange, a metal limiter, a bending limiter and a telescopic transition joint. The horn mouth clamp is used for holding and fixing a horn mouth of the J-shaped pipe, two connecting grooves are oppositely formed in the horn mouth clamp, the two connecting grooves are matched to fix the adapter flange, the adapter flange is further connected with a plurality of metal limiters and a plurality of bending limiters, and the bending limiters are fixed with an undamaged limiter group through telescopic transition joints; the utility model is based on the maintenance device. According to the utility model, efficient underwater operation maintenance can be carried out on the damaged center clamp and the bending limiter, the submarine cable protection is enhanced, the service life of the submarine cable is prolonged, the maintenance operation difficulty is reduced, the construction steps are simplified, and the maintenance cost is greatly reduced.

According to the prefabricated in-wall junction box assembly deepening design and installation method provided by the invention, through deepening design of junction box positioning, junction box cover plate deepening design and installation and prefabrication forms, collision between an electric appliance junction box and reinforcing steel bars is avoided, electromechanical professional one-time forming after a concrete structure is completed is realized, and the construction efficiency is improved. Deepened design and installation quality of an electrical major on a concrete structure are guaranteed, the processing period and the construction period can be shortened through prefabrication, and the purpose of controlling construction quality and progress is achieved. Through a prefabricated, parameterized and modularized deepening design method, the problems of positioning, collision and efficiency of traditional wire box embedding are solved, and comprehensive optimization of construction quality, progress and cost is achieved.

The utility model relates to the technical field of electric power engineering, aims to solve the problems that in the prior art, operation steps are complex and tedious, rapid marking is inconvenient, the clamping effect is poor and the position cannot be adjusted, and provides a photovoltaic power generation operation and maintenance line marking device which comprises a protection block. The protection block is provided with an upper shell and a lower shell; a first baffle is arranged at one end of the protection block, the first baffle is connected to one end of the protection block in a swinging mode, a second baffle is arranged at the other end of the protection block, the second baffle is detachably connected to the other end of the protection block, and through holes are formed in the axis of the first baffle and the axis of the second baffle; a protection mechanism is arranged in the protection block, one side of the upper shell is hinged to one side of the lower shell, a limiting mechanism is arranged between the other side of the upper shell and the other side of the lower shell, and the other side of the upper shell is detachably connected to the other side of the lower shell through the limiting mechanism. The device has the beneficial effects that the operation steps are simple and convenient, a worker can conveniently and quickly mark, the clamping effect is good, and the position can be randomly adjusted.

The invention relates to the technical field of power systems, in particular to a high-voltage cable joint temperature field distribution simulation analysis method and system under broadband disturbance. Constructing an electric-magnetic-thermal multi-physics field coupling simulation model of the alternating-current high-voltage cable joint to be tested; performing hierarchical grid division on the electric-magnetic-thermal multi-physics field coupling simulation model; simulating the electric-magnetic-thermal multi-physical field coupling simulation model under different broadband disturbance conditions by considering physical field boundary conditions to obtain a broadband temperature field distribution result and harmonic loss distribution data; and according to the broadband temperature field distribution result and the harmonic loss distribution data, quantifying the internal temperature field distribution change characteristics of the high-voltage cable joint under broadband disturbance. According to the method, through accurate simulation calculation of temperature field distribution of the high-voltage cable joint under broadband disturbance, safe and stable operation of the high-voltage cable joint under the broadband disturbance environment is ensured.

An electrical feedthrough is providing that includes a base body, an insulating material, an electrical conductor, a creepage distance extension, and a sealing member. The base body has a through opening extending therethrough. The insulating material is in the through opening. The electrical conductor extends through the insulating material such that a portion of the electrical conductor protrudes from the insulating material. The creepage distance extension surrounds at least a section of the portion. The sealing member is between the insulating material and the creepage distance extension. The sealing member is a seal material that is at least partially mineral and crystalline.

According to an embodiment of the present invention, a pressurized sleeve for routing of linear components is provided. The pressurized sleeve is disposed to at least partially surround a flexible line object. A plurality of pouches is disposed in the robotic cable sleeve. At least two pouches of the plurality of pouches have different predetermined hydrostatic pressures from one another which induce axial movement of at least a portion of the robotic cable sleeve and a corresponding portion of the at least partially surrounded linear component.

The invention relates to the technical field of submarine cable equipment, and provides a dynamic submarine cable quick release device for isolating marine organism attachment, which comprises a female plug, a male plug, a traction component, an automatic mounting and releasing mechanism and an elastic pin lock catch mechanism, and is characterized in that the automatic mounting and releasing mechanism is used for movably limiting the male plug and the female plug; the automatic mounting and releasing mechanism is of a closed structure; the elastic pin lock catch mechanism has a first locking state for locking the male plug and the traction component in advance and a second unlocking state for unlocking the male plug and the traction component after the male plug and the female plug are locked. The working efficiency is improved, divers do not need to dive underwater for operation, and the operation safety risk of the divers is reduced; meanwhile, the marine organism adhesion resistance of equipment is effectively enhanced, and the underwater service life and reliability of the equipment are improved.

The invention discloses a temporary access box on an application pole and an access method thereof. The access box comprises a box body, and a disconnecting link respectively connected with a mobile power supply vehicle and a low-voltage overhead line is arranged in the box body; the disconnecting link at the rear end is connected with a circuit breaker, and the circuit breaker is provided with a cable terminal. The pile head of the disconnecting link located at the front end is provided with an intelligent fusion terminal used for collecting and uploading electric quantity and power generation and protection time information. Compared with the conventional operation mode of accessing a transformer body and a busbar, the method for carrying out transformer power protection operation by applying the temporary access box of the power generation car on the pole has the remarkable advantages of high safety, high scene adaptability, high economical efficiency and simplicity in operation through practical application verification.

The invention provides a building electromechanical pipeline modular construction method based on the BIM technology, and relates to the technical field of BIM. The method comprises the steps that comprehensive arrangement of project pipelines is conducted through the BIM technology, adjustment is conducted according to cross collision occurring in the installation process, a support is designed, and support stress is rechecked; the method comprises the following steps of: designing a comprehensive pipeline of a region in BIM software in detail according to nodes, dividing the comprehensive pipeline into electromechanical pipeline installation modules of one unit, and providing a pipeline module three-view; module prefabrication is conducted according to the requirements of a BIM module drawing, after prefabrication is completed, segmented comprehensive electromechanical pipelines are assembled on a manufactured assembly frame, and transportation is conducted after assembly; and an overall installation scheme is planned according to the overall pipeline installation area, the bearing capacity of a floor or a beam is rechecked, and segmented hoisting or lifting and overall module splicing of the pipeline unit modules are carried out. The comprehensive quality and construction safety of the electromechanical pipeline system are improved.

According to an embodiment of the present invention, a method is provided for pressurized routing linear components. The method includes obtaining data related to a project. Features are extracted from the obtained project data. The extracted features include linear component characteristics and project environment characteristics. A project design is obtained based on at least one of user input and predetermined extracted features from the extracted features from the obtained project data. The project design includes installation or uninstallation of a linear component in relation to an apparatus. Pressurization is calculated of a plurality of pouches disposed in a pressurized sleeve for the installation or uninstallation of the linear component in relation to the apparatus based on the project design. The calculated pressurization of the plurality of pouches disposed in the pressurized sleeve is implemented.

The invention relates to the technical field of insulating rod auxiliary equipment, and particularly discloses an insulating rod auxiliary fastening method and device. The method comprises the steps that a rotating handle on the insulating rod is clamped through a clamping device, and the clamping device comprises a clamping assembly used for clamping the rotating handle, a transmission assembly used for driving the rotating handle to rotate and an output motor used for controlling starting and stopping of the transmission assembly; controlling an output motor to start, and acquiring a real-time current value of the output motor; when the real-time current value is larger than or equal to the preset current value, the output motor is controlled to be According to the scheme, the clamping device can clamp the rotating handle and drive the rotating handle to rotate, the operation burden of a worker is reduced, the risk that the insulating rod slips out of the hand is reduced, meanwhile, whether the conductor end is clamped by the insulating rod or not is judged by obtaining the real-time current value, the accuracy of judging whether the insulating rod is clamped or not by the worker can be improved, and the working efficiency is improved. The problems that in the operation process, the risk that the insulating rod slips out of the hand is high and the accuracy of judging whether the insulating rod is clamped is low are solved.

An all-terrain submarine cable inspection robot comprises a frame, a traveling movement system, a bottom movement system and a control system. The swimming movement system comprises at least one supporting frame and a propeller connected with the supporting frame, one end of the supporting frame is connected to the frame, and the other end of the supporting frame is connected with the propeller; the bottom moving system comprises a motor driving system, a transmission system and a crawler wheel set, and the motor driving system drives the crawler wheel set to move through the transmission system under the action of electric energy; the control system comprises a control panel and a control panel fixing part, the control panel is connected with the control panel fixing part, the height of the whole robot body is increased, so that the inspection robot can be located above a submarine cable all the time for inspection, and the submarine cable is located in the space of the bottom all the time; compared with a traditional inspection robot, the tracking inspection coverage rate is greatly improved, and therefore the loss rate in the cable inspection process is reduced.

The invention provides a multifunctional intermediate joint capable of being connected with a cable, and relates to the technical field of cable accessories. The multifunctional intermediate joint capable of connecting the cable comprises a joint body, an operation and maintenance hand-held terminal based on RFID and GPS, and an Internet of Things platform. In the case of instantaneous overload or short circuit, the PCM quickly absorbs heat to delay temperature rise, and the axial flow fan forcibly cools air to discharge heat, so that insulation carbonization is avoided; the self-cleaning mechanism removes dust on the filter screen to ensure stable long-term heat dissipation; the STM32H743VIT6 is fused with temperature, mechanical stress, partial discharge data and time-frequency domain alignment, so that the insulation failure prediction precision is improved; the dual-frequency anti-metal RFID tag, UWB positioning and AR operation and maintenance terminal are linked to display the health state, the deterioration trend and the maintenance animation of the connector in real time, so that the inspection time is greatly shortened, and misoperation is reduced; the Internet of Things platform remotely calls edge calculation data, experts collaboratively mark AR pictures, and the fault response speed is increased; and a sensing-analysis-decision-execution intelligent operation and maintenance system is constructed.

The utility model discloses a cutting device for cable production, which comprises a base, the top of the base is fixedly connected with a cutting table, and the top of the cutting table is fixedly connected with a support. In the actual use process, the rotating handle on the support is rotated to cause the threaded rod to rotate, so that the connecting frame on the connecting sleeve is pushed to move forwards, the movement of the connecting frame drives the extrusion block to move forwards to extrude a cable body to be straight, the electric push rod at the top of the support is started, the connecting plate is pushed to move downwards, and in the downward moving process of the connecting plate, the cable body is extruded to be straight. When a cable is cut off, the sliding rods at the four corners and the pressing blocks can be driven to move downwards together, the pressing blocks conduct accurate positioning on the cable body when moving downwards, continuous pressing force is applied to the cable body through elasticity of the springs, accurate cutting off of the cable body is achieved through cooperation of the upper cutter and the bottom cutter, the whole system guarantees rapid and accurate positioning of the cable, and the service life of the cable is prolonged. And through cooperation of the spring and the pressing block, the deviation problem in the cutting process is solved, and the working efficiency and the cutting precision are remarkably improved.

The utility model relates to a bunching rack for a computer room, relates to the technical field of electrical installation equipment, and mainly solves the technical problem that wires are damaged due to overexertion when an operator does not know the reserved length. The sound box comprises a base, a pressing wall, a clamping assembly and a sound making assembly, the pressing wall is detachably connected with the base and is parallel to the base, the base and the pressing wall are provided with mounting grooves distributed in an array mode, and the mounting grooves in the base and the pressing wall are correspondingly arranged and form through holes for electric wires to penetrate through; the clamping assembly comprises a first clamping block, a second clamping block, a first elastic piece and a second elastic piece. According to the utility model, the clamping assembly is used for clamping the wire and playing a buffering role when the wire is pulled, so that the wire is prevented from being damaged due to sudden pulling of the wire under the action of pulling force, and meanwhile, the reminding assembly is arranged, so that sound is made when the wire is pulled, and the wire is prevented from being damaged due to subsequent continuous pulling of the wire.

The invention relates to the technical field of cable safety detection, and particularly discloses a power cable inspection robot system which is characterized in that self-sounding emission waveform flow and thermoelastic stress field distribution of a cable are synchronously acquired through an autonomous mobile platform; carrying out nonlinear mode decomposition and entropy evolution analysis by utilizing an edge calculation center, and respectively extracting a damage kinetic energy release rate and a state phase change margin characteristic value; the time-space correlation of the two is constructed through a comprehensive analysis module, and a critical instability coefficient indicating the chain failure risk is calculated; outputting a safety state level through the risk prediction model; and finally, the autonomous strategy generation module executes differentiated inspection decisions accordingly. According to the invention, fusion evaluation of the internal damage and thermal stability of the cable is realized, the structure instability risk can be accurately predicted in an early stage, the robot is driven to autonomously adjust the inspection strategy, and the intelligence, precision and response efficiency of inspection are improved.

According to the underground cable tunnel inspection robot based on dynamic PT symmetric tuning and the wireless charging system, a honeycomb-shaped aluminum alloy antimagnetic waterproof shell and an integrated omnidirectional four-wheel drive system are adopted for a movable chassis, and double permanent magnet synchronous motors and a stainless steel waterproof structure are arranged, so that high maneuverability in a humid multi-obstacle environment is ensured. And the inspection module integrates multispectral imaging, non-contact infrared temperature measurement and UWB positioning beacons to realize cable surface defect detection and environmental parameter analysis. The dynamic energy cabin cooperates with the PT symmetric wireless charging tuning unit through a three-degree-of-freedom adaptive compensation mechanism, and supports all-weather contactless energy supply in combination with a double-circuit power supply management module. The electromagnetic waterproof shell adopts a three-layer composite shielding structure and a waterproof ventilation valve, so that high-frequency magnetic field interference and moisture erosion are effectively resisted. And the control communication module realizes precise operation through multi-modal data fusion and master control decision. The self-cleaning device is provided with a 360-degree rotating spray head and a miniature high-pressure air pump, and pollutants on the surfaces of a lens, an infrared window and a coil can be rapidly removed. Dynamic PT tuning, electromagnetic barrier and intelligent compensation technologies are integrated through modular design, the inspection precision and safety in high-humidity, strong-magnetic interference and complex terrain environments are remarkably improved, the system has the characteristics of self-cleaning maintenance, efficient wireless charging and low manual intervention, and an all-weather autonomous intelligent operation and maintenance solution is provided for an underground cable tunnel.

The embodiment of the invention provides a debugging method of power distribution equipment, electronic equipment, a storage medium and a program product. The method comprises the following steps: acquiring an abnormal power distribution message of power distribution equipment; wherein the abnormal power distribution message is a power distribution message of the power distribution equipment extracted when the power distribution terminal of the power distribution equipment carries out analysis abnormity early warning; vectorizing the abnormal power distribution message to obtain an abnormal power distribution message vector; carrying out clustering processing on the abnormal power distribution message vector to obtain an abnormal cluster to which the abnormal power distribution message vector belongs; the abnormal cluster indicates a fault type; performing identification processing on the abnormal power distribution message vector and a fault type indicated by the abnormal cluster based on a large language model, and generating a debugging instruction set; wherein the debugging instruction set is used for debugging the power distribution equipment. The method is used for achieving the effect of improving debugging efficiency and accuracy.

The invention provides a cable dragging anti-friction device for power construction, and belongs to the technical field of cable protection devices.The cable dragging anti-friction device comprises a supporting frame, a rotating roller is arranged on the supporting frame, a drawing frame is slidably installed on the supporting frame, a supporting plate is arranged on the drawing frame, two arc-shaped limiting grooves are formed in the supporting plate, and a corner auxiliary part is installed on the supporting plate; the corner auxiliary part comprises four first U-shaped supporting plates, two of the four first U-shaped supporting plates are fixedly installed on the supporting plate, the other two of the four first U-shaped supporting plates are slidably arranged in the two arc-shaped limiting grooves correspondingly, and rotating rollers and inclined rollers are installed on the first U-shaped supporting plates correspondingly. A cable can be supported and limited through the rotating rollers and the inclined rollers, contact friction between the cable and a building or other objects is prevented, an operator can prolong or shorten the overall length of the supporting frame according to actual needs through the design of the drawing frame so that the supporting frame can adapt to cables of different lengths, and the practicability of the device is improved.

The invention relates to a construction method for a grounding down lead system of a new energy storage power station, which is based on the construction of a main grounding grid and is used for reasonably connecting a lightning rod, a framework, a lightning arrester bracket, a main transformer, a tubular bus, a GIS (Gas Insulated Switchgear) and a brim voltage-sharing belt in the energy storage power station with the main grounding grid so as to exert the function of protecting related electrical equipment in the energy storage power station. Comprising the following steps that S1, a lightning rod, a framework, a lightning arrester support, a main transformer, a tubular bus, a GIS and a brim voltage-sharing belt are connected to a main grounding grid; s2, providing centralized grounding devices, and respectively arranging the centralized grounding devices at positions adjacent to a lightning rod, a main transformer and a tubular bus; on the basis that related electrical equipment of the energy storage power station is connected to the main grounding grid, the centralized grounding device is arranged for the lightning rod, the main transformer and the tubular bus, so that the current dispersing area is increased, the grounding efficiency of a grounding down lead system of the energy storage power station is improved, the potential difference among multiple equipment of the energy storage power station is reduced, and point position balance of the whole station is ensured; and safe operation of electrical equipment is ensured.

The invention relates to an AUV (Autonomous Underwater Vehicle) crawling system and application thereof. The plurality of translation mechanisms are mounted on the machine body; in the plurality of lifting mechanisms, the plurality of lifting mechanisms are respectively connected with the movable ends of the plurality of translation mechanisms and the machine body; the multiple wheel set opening and closing mechanisms are connected with the fixed ends of the multiple lifting mechanisms correspondingly. The plurality of walking wheel sets are respectively connected with the plurality of wheel set opening and closing mechanisms; the multiple auxiliary clamping mechanisms are connected with the multiple wheel set opening and closing mechanisms correspondingly. In the obstacle-avoiding crawling process of each obstacle-crossing unit on the pipe / cable, the walking wheel set and the auxiliary clamping mechanism are driven to swing in sequence, the height position of the wheel set opening and closing mechanism relative to an obstacle is adjusted through the lifting mechanism, and the lifting mechanism is driven to cross the obstacle through the translation mechanism. And the obstacle crossing units repeat the actions, so that the AUV crawling system completes inchworm type obstacle crossing on the pipe / cable. The AUV crawling system can adapt to crawling of pipes / cables in different environments, is high in obstacle crossing capacity and belongs to the technical field of pipe / cable inspection.

A wire harness protection member has: a protector constituted by overlapping a plurality of sheet materials; and a fixing portion which fixes both end portions of the protector to each other, in which the plurality of sheet materials has same materials and same shapes, the plurality of sheet materials includes a first sheet material and a second sheet material, the second sheet material is disposed at a position shifted from the first sheet material in an axial direction of the wire harness, the protector is wound around the wire harness such that the inner side surfaces of both end portions of the protector face each other, and the fixing portion fixes both end portions of the protector to each other along an opposing direction in which the inner side surfaces of both end portions of the protector face each other.

According to an embodiment of the present invention, a method is provided for pressurized routing linear components. The method includes obtaining data related to a project. Features are extracted from the obtained project data. The extracted features include linear component characteristics and project environment characteristics. A project design is obtained based on at least one of user input and predetermined extracted features from the extracted features from the obtained project data. The project design includes installation or uninstallation of a linear component in relation to an apparatus. Pressurization is calculated of a plurality of pouches disposed in a pressurized sleeve for the installation or uninstallation of the linear component in relation to the apparatus based on the project design. The calculated pressurization of the plurality of pouches disposed in the pressurized sleeve is implemented.

The utility model discloses a fire spitting special operation four-axis unmanned aerial vehicle for power lines, and relates to the technical field of unmanned aerial vehicles, the four-axis unmanned aerial vehicle comprises an unmanned aerial vehicle body, the left and right sides of the bottom surface of the unmanned aerial vehicle body are both fixedly connected with fixing blocks, two hanging rods are fixedly connected between the two fixing blocks, and the surfaces of the two hanging rods are both clamped with two hooks. Fixing plates are fixedly connected to the bottoms of the four hooks, mounting grooves are formed in the bottom surfaces of the fixing plates, locking grooves are formed in the left side wall and the right side wall in each mounting groove, a mounting frame is arranged on the bottom surfaces of the fixing plates, a two-way lead screw is rotationally connected to the front end in each mounting frame, a guide rod is fixedly connected to the rear side in each mounting frame, and a flaming device is fixedly connected to the bottom surface of each mounting frame. The locking device has the advantages that locking and unlocking can be achieved through rotation of a single knob, and the operation process is greatly simplified; in addition, the opening angle of the fixing support can be rapidly adjusted only by simply rotating the threaded sleeve, and the working efficiency can be remarkably improved.