21results about How to "Avoid electric shock accidents" patented technology

The application provides an LED straight tube lamp, comprising: a lamp tube, the lamp tube comprising a diffusion coating covering the inner circumferential surface of the lamp tube; a lamp cap arranged at one end of the lamp tube; a lamp plate arranged in the lamp tube, the lamp plate being provided with a light source; a power supply, the power supply being in electrical communication with the light source through the lamp plate, the power supply comprising a circuit board and a power supply module arranged on the circuit board; the lamp plate is a flexible circuit board or a flexible substrate, the lamp plate having a part fixed on the inner circumferential surface of the lamp tube and a part located at both ends of the lamp plate and not fixed on the inner circumferential surface of the lamp tube, wherein the part not fixed on the inner circumferential surface of the lamp tube forms a free part, one end of the free part is deformed by being contracted towards the inside of the lamp tube, and the free part is directly welded to the circuit board of the power supply, the free part being an integral part of the flexible circuit board or the flexible substrate.

This utility model discloses a low-headroom telescopic power early warning and protection trolley for safety protection during construction under high-voltage lines. The trolley base integrates wheels and a drive unit, allowing it to move autonomously to the work area. The column lifting system adjusts the height via hydraulic cylinders, and the boom system consists of a boom platform, a protective arm, and an insulating shielding cloth. The protective arm can be folded and unfolded to adapt to different high-voltage line environments. The trolley is equipped with a high-voltage distance sensor and a linkage alarm to monitor the distance to the high-voltage line in real time. When the distance falls below the safety threshold, an audible and visual alarm is triggered, and the power source is cut off, effectively ensuring construction safety, reducing the risks of construction under high-voltage lines, replacing traditional fixed protective frames, and reducing workload and investment.

The application relates to the technical field of relay protection device detection equipment, and discloses a relay protection device test board, which comprises a supporting base, a motor, a surrounding plate, a tester and a cover plate. The supporting base comprises a top plate and a support, the support is arranged at the lower part of the top plate, the motor is arranged on the support, the surrounding plate is arranged at the side of the support and is connected with the support in sliding mode, the tester is arranged on the top surface of the top plate, and the cover plate is arranged on the top of the tester. The top plate is provided with a slot which is matched with the surrounding plate in plug-in mode, a proximity switch is arranged on the cover plate, the proximity switch is electrically connected with the motor, and the motor is used for driving the surrounding plate to move through the slot and towards one side of the cover plate. The relay protection device test board can prevent the power line of the tester from being extruded, prevent the power line of the relay protection device from being extruded or cut off, and avoid electric shock accidents.

The utility model relates to the related technical field of new energy automobile maintenance tools, in particular to a clamping device for new energy automobile maintenance, which comprises a mounting table and a clamping mechanism, the clamping mechanism is arranged on one side of the surface of the mounting table, and an adjusting mechanism is arranged at one end of the clamping mechanism. According to the clamping device for new energy automobile maintenance, through arrangement of the clamping mechanism, after installation is completed, a first motor is started, the first motor drives a threaded rod to rotate, then a threaded sleeve in threaded connection with the threaded rod slides along a first sliding groove, meanwhile, a fixedly-connected installation block is driven to move, and adjustment of the clamping mechanism is achieved; meanwhile, in the moving process of the threaded sleeve, a positioning rod and a spring act jointly, so that the connecting sleeve is kept stable, it is guaranteed that the threaded sleeve has certain resilience force in the sliding process, the stability of the device is improved, finally, the telescopic protection sleeve is embedded into the edge opening of the first sliding groove, telescopic protection can be conducted in the moving process of the threaded sleeve, and normal operation of the mechanism is guaranteed.

This application discloses a risk monitoring method for live-line work in distribution networks based on image recognition and deep learning. The method includes: acquiring a continuous image sequence of the work site and performing preprocessing; inputting the standardized image sequence into a pre-trained deep learning model; the model extracts joint temporal features through a temporal shared feature extraction module; the current work stage is inferred by a work stage perception module; the joint temporal features are modulated by a stage adaptive feature modulation module; behavioral temporal features are obtained by analyzing personnel approach behavior and changes in the state of insulation shielding objects through a behavior joint analysis module; finally, a violation judgment module determines violations of insulation shielding sequence based on the work stage and behavioral temporal features and outputs the results. This invention achieves accurate and real-time monitoring of violations of insulation shielding sequence in live-line work in distribution networks, adapts to various work scenarios, effectively improves the level of work safety management, and reduces the probability of electric shock accidents.

This invention relates to an insulation monitoring device, comprising: a signal generation unit that generates a measurement signal having a preset voltage and applies the measurement signal to ground through a protective conductor connected to one end of the signal generation unit; a coupling resistor connected to the transmission line; a signal detection unit that includes a detection resistor disposed between the coupling resistor and the other end of the signal generation unit, and detects the voltage of the measurement signal distributed in the internal resistance of the insulation monitoring device formed by the coupling resistor and the detection resistor based on the voltage difference across the detection resistor; and a control unit that detects transient voltages caused by the charging and discharging of a system capacitor formed by parasitic capacitance between the transmission line and the ground from the voltage detected by the signal detection unit, and confirms the connection status of the insulation monitoring device to the transmission line and the ground based on the result of detecting the transient voltage.

The utility model discloses a switching power supply with an insulation structure, which comprises a switching power supply, a switch driving lever is mounted on the surface of the front end of the switching power supply, an insulation rubber gasket frame is arranged on the outer side of the switch driving lever, a knob is movably mounted on one side of the switch driving lever, one side of the surface of the knob is connected with a ram, and the ram is connected with the switch driving lever. A ceramic round core is mounted in the knob, and the surface of the ceramic round core is integrally connected with a ceramic rod; the knob is arranged on one side of the switch driving lever, the surface of the knob is connected with the ram, and the ram can lift the switch driving lever upwards through rotation of the knob, so that a switching power supply is turned on, hands of an operator are prevented from being in direct contact with the power supply switch, the situation of electric leakage is prevented, and the isolation and insulation effects are achieved; the ceramic round core is arranged in the knob, the ceramic round core is connected with the ceramic rod, the ceramic rod is connected with the ram, insulation is achieved through ceramics, and therefore the insulation effect of the knob is improved.

This utility model provides a clamp for gripping graphite tubes, relating to the field of elemental detection technology. The clamp is an insulated clamp and includes: two rods, which are arranged crosswise and hinged at the intersection; two elastic members, one end of which is connected to one end of each of the two rods; two rotation adjustment mechanisms, each connected to the other end of each of the two elastic members; and two clamps, which are arranged opposite each other, with grooves on their opposite sides for gripping the graphite tube. The two clamps are connected to the rotating ends of the two rotation adjustment mechanisms, and the rotation angle of the two clamps can be adjusted according to the setting angle of the graphite tube in the atomic absorption spectrometer. This design facilitates operation and installation by experimental personnel, while preventing the rods or hands from obstructing the operator's view, thus improving the accuracy of graphite tube installation.

The utility model relates to the technical field of wire stripping pliers, and discloses a wire stripping pliers with an electricity measuring structure, comprising a plier body I and a plier body II, a rotating shaft is rotatably connected in the plier body I and the plier body II, the side walls of the plier body I and the plier body II are fixedly connected with insulating grips, one side wall of the plier body is rotatably connected with a bayonet lock, and the bayonet lock is fixedly connected with the insulating grips. An electricity measuring mechanism is arranged in the second clamp body, and a convenient mechanism is arranged on the side wall of the first clamp body and the side wall of the second clamp body. The electricity measuring mechanism comprises a metal sheet, an LED flashing lamp and a current-limiting resistor, and the side wall of the insulating grip on one side is fixedly connected with a fixing box. According to the utility model, when the equipment works, the metal sheet is in contact with a detected wire to induce current, the current-limiting resistor regulates and controls the current-limiting resistor to drive the LED flashing lamp to emit light, so as to indicate whether the wire is electrified or not, the visibility of LED optical signals is enhanced through the lens, and through the cooperation of the above structures, the power-on state of the wire can be rapidly detected before wire stripping operation. Electric shock accidents are avoided, and the operation safety is improved.

The utility model discloses a high -tension isolator convenient to overhaul, including mounting seat, and mounting seat is cavity structure, and the middle part of mounting seat top is equipped with the rectangular hole, and both ends of mounting seat top are fixed with the insulator, and one insulator top is installed the contact seat, and another insulator top is installed the static contact, and the U -shaped frame is fixed in contact seat top, and the inside wall rotation is connected with the breaker in the U -shaped frame, and the inside wall rotation is connected with the pivot in the middle part of mounting seat. The utility model discloses through the cooperation of first rotating mechanism and second rotating mechanism, can make the breaker and static contact separate, realize the power -off purpose, need not through professional tool disassembly spare part mode operation, has simplified the overhaul procedure, has reduced the time required, thereby has improved work efficiency, through the limiting mechanism of design, the rotation of pivot is limited, avoids the misoperation and leads to the switch closing, thereby effectively prevents the electric shock accident, improves the security of equipment.

The utility model belongs to the technical field of medical instruments, and discloses a connector structure and a medical device.The connector structure comprises a plug, a socket and a locking and releasing structure, the plug comprises a first connecting piece, the locking and releasing structure comprises a second connecting piece and a limiting piece, and the second connecting piece is suitable for moving in the first direction; the limiting piece is used for locking and unlocking the first connecting piece and is provided with a first position and a second position which are matched with the second connecting piece in a limiting manner; when the plug is inserted into the socket, the limiting piece moves to the second position from the first position, and the second connecting piece and the first connecting piece are locked. And when the plug leaves the socket, the limiting piece moves from the second position to the first position, and the second connecting piece and the first connecting piece are unlocked. According to the invention, locking or unlocking work between the plug and the socket can be synchronously completed during plugging operation, the operation mode of connection or disconnection between the medical equipment host and the peripheral is simplified, and the working efficiency is improved.

This invention provides an insulation protection device for the maintenance of substation equipment in urban power grids. It includes an operating tool for maintaining substation equipment and an operating rod for controlling the movement of the tool. The operating rod is made of insulating material. The operating tool includes a housing and a cover mounted on the housing. The housing is fixedly connected to the operating rod. The housing has a storage space for accommodating the tool. A turntable is rotatably mounted inside the storage space, and at least one tool position is provided on the turntable. An electric push rod is fixedly mounted on the tool position, and the telescopic end of the electric push rod is fixed to the tool via a fixing mechanism. This invention protects maintenance personnel during operation, preventing electric shock accidents. When the tool is needed, the telescopic end of the electric push rod is extended to push the tool out of the housing. Maintenance personnel then operate the tool via the operating rod to maintain the substation equipment.

This invention discloses an Internet of Things (IoT)-based method for monitoring and early warning of wild animals on power transmission lines, relating to the field of intelligent power grid early warning technology. The method involves constructing a line layout map, collecting line monitoring data and monitoring time; extracting images from the line monitoring data to obtain captured images and decomposed matching times; performing contour detection on the captured images to obtain animal monitoring edge images; predicting the location risk of the animal monitoring edge images to obtain preliminary risk assessment results; constructing a model activity library; comparing features between the power grid virtual space and the animal monitoring edge images to obtain a matching standard model; and using the matching standard model to provide intelligent early warning for the three-dimensional model of the line, obtaining a dynamic early warning strategy. This enables early prediction of high risks, reduces power outages caused by wild animals, and improves the safety and reliability of the power system.

The utility model relates to a centrally installed switchgear capable of being installed reliable to a wall, which comprises a front switchgear body and a rear switchgear body, the front switchgear body and the rear switchgear body are adjacently arranged, and the front switchgear body is provided with a switchgear door capable of being opened and closed; the front cabinet body sequentially comprises an instrument chamber, a circuit breaker chamber and a cable chamber from top to bottom; a middle support extending longitudinally is arranged between the front cabinet body and the rear cabinet body, and a detachably connected contact mounting plate is arranged at the position, corresponding to the height of the circuit breaker chamber, of the middle support. The front cabinet body comprises a first base, and the first base is provided with a wire outlet hole. The utility model has the advantages of compact structure, volume saving and reliable wall installation, all components can be maintained and replaced in front of the cabinet, the maintenance space behind the cabinet is saved, and the installation space is saved.

The invention relates to a distribution cable short circuit reinforcing facility which is used for isolating a plurality of distribution cables and preventing short circuit among the distribution cables. According to the embodiment of the invention, the distribution cable short circuit reinforcement facility is a short circuit prevention cabinet formed by a plurality of cable accommodating grids up and down. The cable accommodating chambers include a control cable accommodating chamber, which is inserted into the cable drawer of each of the cable accommodating chambers in the case of accommodating the connection portion of the cable, and one of the plurality of cable accommodating chambers is selected so as to prevent a short circuit between the plurality of cable accommodating chambers in the case of simultaneously exposing the plurality of cable accommodating chambers. In the cable containing chambers, one containing chamber is selected from the cable containing chambers, one cable containing chamber is selected from the cable containing chambers, and one containing chamber for containing the cable is selected from the cable containing chambers to unlock the cable. If one cable drawer is detached, an unlocking limiting part for limiting the operation of the selection unlocking part is included, so that the other cable drawers are prevented from being separated.

The application discloses a fault property diagnosis device and method for cable fault test, and belongs to the technical field of power equipment detection. The fault property diagnosis device comprises a host unit and a multifunctional conversion unit, the multifunctional conversion unit is connected with a central control unit and each test unit; the host unit is integrated with a multimeter unit, a megohmmeter unit, a low-voltage pulse unit and the central control unit, and is used for coordinating the working time sequence of each unit and processing measurement data; the multifunctional conversion unit comprises a test mode selection module and a safety interlocking and discharge detection module, and is used for detecting the residual voltage of a high-voltage output end connected with a cable and allowing switching only when the residual voltage is detected to be lower than a safety threshold. The application realizes the integration, safety and process of the cable fault diagnosis, improves the field detection efficiency and operation safety, and solves the problems of equipment dispersion, complicated operation and high safety risk in the existing cable fault diagnosis.

This application discloses a wearable device and method for spatial perception and early warning of live parts in substations, relating to the field of substation technology. The device includes: a camera for acquiring real-time images of the surrounding environment of the operator; a main control module for identifying live parts within the field of view based on the real-time images, and generating a start command when a live part is identified; a lidar for collecting laser point cloud data of the surrounding environment based on the start command and transmitting it to the main control module; a real-time dynamic positioning module for acquiring precise positioning data of the operator based on the start command and transmitting it to the main control module; the main control module for constructing a three-dimensional model of the surrounding environment based on the laser point cloud data, precise positioning data, and real-time images; calculating the real-time distance between the operator and the live part based on the three-dimensional model; generating an early warning command based on the real-time distance; and VR glasses for executing the early warning prompt based on the early warning command. This device can improve the accuracy of early warnings.

This invention provides an intelligent electronic anti-misoperation lock for 10kV load switchgear. Addressing the problems of traditional 10kV switchgear copper locks, such as cumbersome operation, lack of insulation protection, and susceptibility to misoperation, this new design employs an integrated transmission locking mechanism that can simultaneously lock two lock holes on one side. Rotating the lock hole and latch via a key-operated handle, and then coordinating with the transmission frame and shaft, locks and unlocks the switchgear baffle locking mechanism via a limit pin. The intelligent circuit board integrates a voltage detector and a collision alarm device, combined with conductive metal primary and secondary locking rods, enabling real-time monitoring of leakage and collision conditions, and emitting audible and visual alarms via buzzers and indicator lights. An insulated handle and a high-strength plastic lock body ensure operator safety. This anti-misoperation lock is simple and efficient to operate, offers excellent safety performance, effectively prevents misoperation, provides real-time feedback on equipment status, and improves the safety and reliability of power equipment operation.

An intelligent induced voltage alarm device comprises a power frequency electric field sensor, a signal processing unit, a power supply unit, a sound-light alarm unit and a communication unit. The device is worn on a worker; the signal processing unit is connected with the power frequency electric field sensor and the sound-light alarm unit, field operation voltage parameters are stored in the signal processing unit, the induced voltage sensed by a human body at the moment is judged according to the electric field intensity collected by the power frequency electric field sensor, and when the induced voltage is larger than the voltage parameters built in a chip, the alarm device gives an alarm. Workers are reminded to pay attention to safety, and electric shock is prevented; the device automatically gives an alarm when inducting that the voltage is higher than the induced voltage which can be borne by a human body, so that a safety prompt function is provided for people.

The utility model relates to indoor decoration technical field, specifically is an indoor decoration is with auxiliary frame, including bottom plate, U -shaped floor sweeping rod, front handrail rod and rear handrail rod, the both side end of bottom plate is welded with L shaped support plate and the top of L shaped support plate is installed with support electric jar through mounting seat, the output shaft of support electric jar is installed with support foot pad through screw, the top of bottom plate is installed with U -shaped floor sweeping rod through the bottom base of can assemble and assembling bolt, one end both sides of U -shaped floor sweeping rod are welded with rear handrail rod, the both sides of the other end of U -shaped floor sweeping rod are welded with front support and the same side front support and rear handrail rod are welded with inclined fixed frame between, the pedal is installed with equal distance through assembly bolt between the inclined fixed frame, indoor decoration is with auxiliary frame assembly efficiency is high, and convenient operation shortens the assembly time, and greatly improves the whole stability, reduces the swing, when the top of auxiliary frame is close to high -voltage line body, plays the function of early warning.

The utility model discloses an overhead line power taking connection device, including device body, the device body includes fixed base, movable seat and drive seat, drive seat with fixed base swing joint, movable seat includes first clamping part, fixed base includes second clamping part, drive seat with movable seat transmission connection to make first clamping part close or far from second clamping part, drive seat far from movable seat one end swing joint has the plug-in seat. The utility model can be connected with overhead cable, electric device fast, realize temporary power taking, solve the problem that old public power distribution room can not be connected externally and can not supply power temporarily.