300results about How to "Reduce risk of electric shock" patented technology

The invention provides a lockable power supply device. The lockable power supply device includes a power supply base and a power supply plug. A slide chute is arranged in the power supply base. The front end of the slide chute is also provided with a guide groove extending left and right. A partition formed integrally with the power supply base is arranged at the vertical axis of symmetry of the guide groove. A slot is arranged in the front end of the power supply base in a vertically symmetric manner. A slide block is mounted in the slide chute in a manner of sliding forward and backward. A guide block is mounted in the guide groove in a manner of sliding left and right. An end face of the guide block facing the slot is provided with a locking arm and a conducting contact. The conducting contact is disposed at the rear end of the locking arm. The guide block is therein provided with a through groove. A screw rod is mounted in the slide block. The front end of the screw rod is mounted in the partition in a rotary manner. The rear end of the screw rod is in power connection with a motor mounted in the power supply based. The rear end face of the power supply plug is provided with a conducting inserting rod. The conducting inserting rod is therein provided with a locking groove fitting with the locking arm. The power supply device provided by the invention is high in safety performance. During the power supply process, the conducting inserting rod can be locked. Therefore, the power supply stability is improved substantially.

The invention discloses an LED bulb lamp which comprises an LED bulb lamp panel and a light processing structure. The LED bulb lamp panel is provided with at least one LED light source, and the light processing structure is arranged on the side, where the LED light sources are located, of the LED bulb lamp panel and is provided with a reflecting face used for changing the direction of light generated by the LED light sources. In this way, uniform transition of the luminance of the LED bulb lamp can be achieved, and the luminance can be distributed by more than 180 degrees; besides, production automation can be easily achieved; users can be prevented from being hurt; as the users can be prevented by through holes from making contact with internal electrified bodies under the condition that a lamp shell is broken, the electric shock risk is greatly lowered.

The invention discloses an LED straight pipe lamp. The LED straight pipe lamp comprises a lamp panel provided with LED light sources and a power source circuit board provided with a power source. The lamp panel is provided with light source bonding pads, and the light source bonding pads are provided with holes. The power source circuit board is provided with power source bonding pads, and the power source bonding pads are provided with holes. The light source bonding pads and the power source bonding pads are connected in a butted and welded manner. According to the technical scheme, the lamp panel and the power source circuit board are connected in a welded manner, and compared with a wire connection manner, the welding manner is firmer and more reliable; and further, the lamp panel and the power source circuit board are provided with the bonding pads, the bonding pads of the power source circuit board is provided with the holes, and therefore during welding, soldering tin can permeate into the holes, and more stable connection is formed. Meanwhile, the LED straight pipe lamp can be applied to an automatic line to be produced in a large-scale manner.

The invention discloses a safety socket for a fire-fighting alarm host. The safety socket comprises a socket panel, a socket base and a jack panel; a protection lock block and a connecting-inserting piece assembly are arranged in the interior of the safety socket; the connecting-inserting piece assembly can switch between a connecting state and a disconnecting state in a terminal inserting direction of a plug; the connecting state is performed when the connecting-inserting piece assembly, the protection lock block and the jack panel move downwards integrally; the connecting-inserting piece assembly, the terminal of the plug, and the inserting pieces on the socket base are electrically connected; the disconnecting state is performed when the connecting-inserting piece assembly, the protection lock block and the jack panel move upwards integrally, and the connecting-inserting piece assembly and the inserting pieces on the socket base are disconnected. The safety socket has the beneficial effects that the abnormal electric connection of the existing socket is effectively prevented, and the risk of electric shock is greatly reduced, so that the safety socket is safe and reliable, and worthy of wide popularization.

The invention relates to a testing jig, in particular to a PCB (Printed Circuit Board) insulation resistance testing jig, comprising a base, a PCB placing table, guide posts, test pins, a test pin table and test leads. The guide posts and the PCB placing table or the test pin table are fixed on the base, the PCB placing table is provided with a PCB locating structure, the test pins are arranged on the test pin table, the PCB placing table or the test pin table is provided with guiding holes matched with the guide posts, and the test leads electrically connect the guide posts and the test pins. In the invention, the PCB insulation resistance testing jig is a special jig, which avoids the steps of lead preparation, lead welding, soldering flux cleaning and the like in the prior art, improves the test efficiency, and prevents the high-temperature impingement on the PCB and the poor influence of the soldering flux on the tested results in the test lead welding process.

The invention belongs to the technical field of power over Ethernet, and provides a non-standard POE power supply circuit and power supply method for network interfaces, and power supply equipment. the non-standard POE power supply circuit is connected to a POE power supply and a cable interface; the cable interface includes a network interface signal line and a network interface power line; the non-standard POE power supply circuit includes an exchange module, a power-on detection module, a control module, a power failure detection module and a power supply module; whether the cable interfaceis accessed by power receiving equipment can be detected through the power-on detection module when the power receiving equipment is not powered on; after the cable interface accesses the power receiving equipment, the control module can generate power enable signals, and the power supply module can output the power signals of the POE power supply according to the power enable signals; and the power-on detection module can be disconnected to the network interface signal line through the control module after the power receiving equipment in in normal communication with the cable interface. Thus, the problems of high power supply costs and low flexibility of traditional POE power supply circuits can be solved.

The invention relates to a working method of an instrument semi-automatic test fixture; the working method of the instrument semi-automatic test fixture comprises the steps: instruments are put down along a limiting groove from the upward side of an instrument positioning frame, a push rod is pushed to push the instruments on a fixed plate, thimbles press against corresponding connection terminalson the back of the instruments, the device is debugged by the way so as to access signals to the instruments through guide lines, and then the instruments are debugged with introduction of corresponding current and voltage values, an auxiliary power supply and the like. The working procedure of workers can be simplified, the working efficiency is improved, and the electric shock risk of the workers is reduced; by arrangement of a manipulator, the detected instruments are automatically grabbed onto conveying belts for conveying, qualified products are delivered directly into a qualified product transfer box, and unqualified products can be pushed to an unqualified product way by a material pushing cylinder and eventually enter an unqualified product transfer box. In the way, the instruments can be automatically detected and classified, the detection is convenient, the efficiency is relatively high, and a condition of the error of classification can be avoided.

The invention discloses a new energy automobile charging device with a protection function. The device comprises a pile body, an electricity connection cavity, a first transmission cavity, a second transmission cavity, a third transmission cavity and a wire retraction cavity are formed in the pile body, an operation cavity and a sealing cavity with the openings facing right are formed in the rightend surface of the pile body, and a charging gun placing cavity is communicated with the left end of the sealing cavity; a sliding block capable of transversely sliding is arranged in the electricityconnection cavity, an upper power supply block and a lower power supply block are arranged on the right end wall of the electricity connection cavity, and an upper electricity connection hole matchedwith the upper power supply block and a lower electricity connection hole matched with the lower power supply block are formed in the right end surface of the sliding block. The device is simple in structure, wire retraction and release work of a charging wire can be well achieved, the problem that the charging wire is exposed outside the charging device and damaged is avoided, and closing and opening of the charging gun placing cavity can be selectively controlled through an operation hand wheel; operation is easy and convenient, the safety is high, and the risk of an electric shock in the operation process is greatly reduced.

The invention discloses a method of determining whether dynamic position of a monitoring terminal exceeds a virtual fence. The method of determining whether dynamic position of a monitoring terminal exceeds a virtual fence establishes a virtual fence by means of a virtual fence defining module in a virtual fence early warning system, and utilizes the monitoring terminal in the virtual fence earlywarning system to obtain the dynamic positional information of the monitoring terminal. The method of determining whether dynamic position of a monitoring terminal exceeds a virtual fence includes thesteps: when the virtual fence is a closed figure which is formed through enclosure of parallel edges, and when the virtual fence is a closed figure which is formed through enclosure of curves, and when the virtual fence is a non-closed figure, respectively performing the corresponding judgment of boundary crossing, thus solving the problem that the prior art cannot judge whether the dynamic position of the monitoring terminal exceeds the virtual fence, and realizing the technical effect of being able to accurately judge whether the dynamic position of the monitoring terminal exceeds the virtual fence.

The invention discloses a high voltage electric loop control device for an electric automobile. The control device is characterized in that a high voltage loop on-off control unit and a high voltage loop state detection unit, the high voltage loop on-off control unit finishes on-off control of a pre-charging loop, a discharging loop, a slow-charging loop and a quick charging loop. The high voltage loop state detection unit detects high voltage, current, insulation resistance and relay state parameters. By means of the structure, a high voltage loop parameter collection harness is integrated in the device, the risk of electric shock caused by damage to the high voltage loop parameter collection harness which is arranged in a battery package or on an automobile body is reduced, and separation of high voltage signals and low voltage signals is achieved. Due to space limitation of the electric automobile or the battery package at present, multiple high voltage signal wires and low voltage signal wires are arranged together, separation of the high voltage signals and the low voltage signals cannot be achieved, and interference between the high voltage signals and the low voltage signals is reduced.

The invention discloses a modular solid insulation ring network cabinet which comprises a cabinet body, an insulated bus module, an isolation module, a main body module, a grounding module and an operating mechanism for controlling the main body module and the grounding module to actuate, wherein the operating mechanism is arranged on the side wall of the cabinet body, the main body module is connected with the operating mechanism through an insulated pull rod, the grounding module is arranged below the main body module, the grounding module is connected with the operating mechanism through a grounding pull rod, the isolation module is arranged at the right lower side of the grounding module, the isolation module comprises an isolation blade and an isolation pull rod movably connected with the isolation blade, and the isolation pull rod is movably connected with a rotating swing rod at the bottom of the operating mechanism. By adopting the modular design, the modular solid insulation ring network cabinet is flexible in production process, convenient to mount and maintain, and compact in structure and small in size as a fully-sealed structure is adopted in the mounting process; and in addition, the modular solid insulation ring network cabinet is provided with a working state monitoring device which can be used for avoiding an electric shock risk, thereby being high in safety.

The invention relates to a method for integrated utilization of light energy, which comprises the following steps of: a) converging natural light through a light energy converging device; b) transmitting the converged natural light to a light energy integrating cavity; c) detecting light intensity in the integrating cavity through a sensor, and performing compensation through a power lighting device arranged in the integrating cavity when the light intensity is insufficient; and d) coupling the natural light in the light energy integrating cavity and power lighting into an input port of a light guide output unit, and transmitting to an application region through the light guide output unit. In the invention, the converged natural light and the power lighting are integrated in the light energy integrating cavity; when the natural light is insufficient, the power lighting is used for compensation, and the final output is light energy superposition of the natural light and the power lighting; the centralized light energy supply is adopted, and two sets of systems, namely a light guide system and a power system, are not required in the application region, thereby lowering the cost; and the relatively pure light energy is outputted to the application region, thereby being safer than the traditional power lighting system.

The invention discloses an auxiliary plasma jet device. The auxiliary plasma jet device comprises a detection control module, an interval adjuster and ground connection drainage pieces, wherein the detection control module is connected with the output end of a high voltage power supply inside the plasma jet device; an opening is formed in the top surface of the interval adjuster and is positionedat the position of a plasma jet nozzle, through holes and grooves are formed in the bottom surface of the interval adjuster, and a plasma jet flow generated by the plasma jet device flows out throughthe through holes in the bottom surface; the ground connection drainage pieces are embedded in the grooves in the bottom surface of the interval adjuster, and are connected with a common earth pole; the detection control module is used for monitoring the voltage and current states of the plasma jet device in real time and disconnecting the high voltage power supply of the plasma jet device when afault occurs; the interval adjuster is used for controlling the length of the plasma jet flow and fixing the ground connection drainage pieces; and the ground connection drainage pieces are used for guiding and discharging plasma current. According to the auxiliary plasma jet device, the application safety of the plasma jet device can be improved, simultaneously a plasma array is discharged uniformly, and the plasma performance is improved.

The invention discloses a rack transformer for a 10kV distribution network overhead line and an installation method thereof. The rack transformer comprises a transformer, a first telegraph pole and asecond telegraph pole, the telegraph pole I and the telegraph pole II are connected through two first cross arm up and down; a transformer and a distribution box are respectively arranged on the firstcross arms; a second cross arm, a third cross arm and a fourth cross arm are arranged on the upper portion of the first telegraph pole, a fifth cross arm and a sixth cross arm are arranged on the upper portion of the second telegraph pole, the second cross arm, the third cross arm, the fourth cross arm, the fifth cross arm and the sixth cross arm are parallel to one another and are perpendicularto the first cross arms, a high-voltage inlet wire is connected to the second cross arm, a fuse is arranged on the third cross arm, and a lightning arrester is arranged on the fourth cross arm. The cross arm for installing the transformer and the cross arm for installing the high-voltage incoming line are arranged vertically, when the transformer is overhauled, no cross arm obstruction exists above the transformer, hoisting is convenient, the high-voltage inlet wire is arranged on one side of the uppermost portion of the telegraph pole, the low-voltage outlet wire is arranged on the other sideof the lower portion of the telegraph pole, the risk that personnel get an electric shock in the overhauling process of main and auxiliary pole low-voltage lines is effectively reduced, and a good effect is achieved.

The invention relates to a method for achieving safety supervision processing for pole climbing operation of a power distribution network, and the method comprises the following steps: obtaining a monitoring video image of a pole climbing operation region, and carrying out the real-time analysis of the wearing condition of a safety belt; extracting a human skeleton in real time, and extracting joint point coordinates of a left shoulder, a right shoulder, a left crotch and a right crotch of the pole climbing operator; carryin out width and height dimension normalization; performing safety beltoverlapping matching analysis; detecting the safety belt hook, and outputting the hook center position; analyzing the position of a safety belt hook; judging whether the central position of the safetybelt hook is higher than the height of the central position of a quadrangle defined by the coordinates of the four articulation points or not, and if so, determining that the safety belt is worn in compliance; otherwise, judging that low hanging and high climbing violation occurs. In addition, the edge calculation capability of the intelligent safety helmet is utilized, and the violation behaviors of electricity testing and grounding rod hanging can be accurately detected. By adopting the method for achieving safety supervision and processing for the pole climbing operation of the power distribution network, the detection precision is high, the real-time performance is high, and the risks of falling and electric shock in the pole climbing operation of the power distribution network can begreatly reduced.

The invention discloses a new energy car charging device convenient for retracting and releasing wires. The device comprises a pile body, a power connection chamber, a first transmission chamber, a second transmission chamber, a third transmission chamber and a wire retracting chamber are formed in the pile body, the right end face of the pile body is provided with an operating chamber with an opening facing the right direction and a closed chamber, the left end of the closed chamber is communicated with a charging gun placement chamber, the power connection chamber is provided with a slidingblock capable of sliding to the left and right directions, an upper power supply block and a lower power supply block are arranged on the right end wall of the power connection chamber, and the rightend face of the sliding block is provided with an upper power connection hole cooperatively connected with the upper power supply block and a lower power connection hole cooperatively connected with the lower power supply block. The charging device has the advantages of being simple in structure, better achieves the retracting and releasing work of the charging wires and prevents the charging wires from being exposed outside the charging device to be damaged; and the opening and closing of the charging gun placement chamber can be selectively controlled by operating a hand wheel; and the charging device is simple and convenient to operate, has high safety, and greatly reduces the existing risks of electric shock during operation.

The invention relates to a special-purpose zero value detection tool for an insulator of a power transmission line. The tool comprises an intelligent detector, a telescopic rod is mounted at one side of the intelligent detector, one end of the telescopic rod is connected with the intelligent detector, the other end of the telescopic rod is connected with a probe connection board, the probe connection board is hinged to the telescopic rod, the lateral part of the probe connection board is provided with two probes, and the two probes are connected with a lead. According to the special-purpose zero value detection tool, time of zero value detector for the insulator is reduced, on-tower workers are reduced, the utilization rate of staff is improved, and the working efficiency is improved; the on-tower workers need no operation outside the insulator, the detention time and operation risk of high-altitude work of the workers are reduced, and the safety level of work is improved.

The invention relates to a telescopic high-altitude wiring device. The device comprises a telescopic insulating rod, a connector and a wire adapting fixing device; the wire adapting fixing device is arranged at the top end of the telescopic insulating rod; the connector is mounted on the wire adapting fixing device. The telescopic insulating rod is formed by nesting a plurality of insulating rods inside and outside; each insulating rod comprises a rod head, a rod body and a rod tail; each rod head and each rod tail are both protruded on the outer side of the rod body of the corresponding insulating rod and form a limiting structure; a locking device for connecting adjacent insulating rods is arranged between the adjacent insulating rods. The insulating rods of the device are telescopic in a rod length direction; the device is convenient to carry, move and use; the connection is safe and reliable; great convenience is brought to maintenance test personnel; the work efficiency is greatly improved. According to the device, a test wire is arranged in the insulating rods, so that the test wire can stretch and retract along the inner sides of the insulating rods; the test wire can also be protected; meanwhile, an electric shock risk which possibly happens in test work is reduced.

The invention relates to a reliability test platform for emission circuits of an optical coupling module of a DC transmission converter valve and a test method. The test platform includes a power supply system, an optical coupling module online packaging platform and an optical power tester. The power supply system supplies power to all optical emission circuits on a fixed coupling module. The installation of the emission circuits of the optical coupling module is achieved on the online packaging platform. The optical power tester receives an optical signal sent by the coupling module through an optical fiber of 150 meters with an attenuation rate of less than or equal to 2db, and detects the emitted optical power. The optical coupling module is assembled onto an optical transceiver board card of a valve-based electronic device and then participates in the high-temperature and low-temperature environment screening test of the optical transceiver board card. In the test, the optical emission circuits of the optical coupling module are also in the above test state and run for a long time, the purposes of overall assessment of all the components of the optical emission circuits and removal of early failure components are achieved, and thus the overall reliability of the optical coupling module is improved.

The invention provides a lightning arrester and transformer detection system, which comprises an automatic guide transportation module, a mechanical arm module, a lightning arrester detection module and a transformer detection module; the automatic guiding and transporting module is used for carrying a transformer to be tested to a first preset area and carrying a lightning arrester to be tested to a second preset area. The mechanical arm module is used for connecting the to-be-detected transformer in the first preset area with the transformer detection module and connecting the to-be-detectedlightning arrester in the second preset area with the lightning arrester detection module; the lightning arrester detection module is used for detecting the performance of the to-be-detected lightning arrester; the transformer detection module is used for detecting the performance of the to-be-detected transformer. In the whole detection process, the power distribution equipment does not need tobe carried and wired manually, so that manpower resource waste is reduced, the power distribution equipment is wired through the mechanical arm module in the detection process, the risk of electric shock caused by manual wiring is reduced, and potential safety hazards are reduced.

The invention discloses a system and method for cleaning settled dirt in a switch cabinet. The system includes a dust raising module, a temperature and humidity sensor, a dust raising monitoring module, a dust collection module and a control system; an air outlet of the dust raising module, the temperature and humidity sensor, the dust raising monitoring module and an air inlet of the dust collection module are all arranged in the switch cabinet; and the dust raising module, the temperature and humidity sensor, the dust raising monitoring module and the dust collection module are connected with the control system. The control system reads data of the temperature and humidity sensor and dust raising monitoring module, and issues starting or stopping work instruction to an air compressor and the dust collection module according to the read data; after receiving the starting instruction, the dust raising module raises settled dirt in the switch cabinet; and after receiving the starting instruction, the dust collection module cleans the settled dirt raised in the switch cabinet. The system and method for cleaning the settled dirt in the switch cabinet can realize automatic cleaning of the settled dirt in the switch cabinet, can not only reduce power failure time, but can also save manpower resources, and reduce electric shock risks brought by hand sweeping of operating personnel.

The invention, which belongs to the field of high-voltage electroscope equipment and radio technologies, in particular relates to an unmanned-aerial-vehicle-carried power transmission line electroscope device comprising an air electroscope system and a ground monitoring system. The air electroscope system consists of an unmanned aerial vehicle and an insulating rod installed at the unmanned aerialvehicle; an image acquisition module, an image sending module, an electroscope module, a first central processing module and a wireless transmitting module are arranged at the insulating rod; and theground monitoring system includes an image receiving module, an image display module, a wireless receiving module, a second central processing module and an alarm module. According to the invention,the dual-frequency dual-source aerial charging detection device and aerial-carried electroscope device are employed and thus no manual climbing work is needed, so that the risk of the staff is reduced; and because of the dual frequencies and dual power sources, alarm signal triggering reliability is ensured.

The invention provides an underground parking lot charging pile protection system. The underground parking lot charging pile protection system comprises an equipment cavity arranged below the ground,wherein an opening is formed in the top of the equipment cavity, a lifting mechanism is arranged at the bottom of the equipment cavity, a stand column is arranged at the upper end of the lifting mechanism, a working table is arranged at the lower end of the stand column, the working table is provided with a master control mechanism, a sealing bottom plate is arranged in the middle of the stand column, a charging mechanism is arranged above the sealing bottom plate, a sealing top plate is arranged at the top of the stand column, and a humidity monitoring mechanism, a lifting calibration mechanism and a water level monitoring mechanism are arranged in the equipment cavity. According to the underground parking lot charging pile protection system, the charging pile is specially used for protecting the household underground parking lot charging pile, so that the charging pile can be prevented from being damaged during water accumulation in the underground parking lot, the protection performance of the charging pile is improved, the safety of a user is improved, and the risk of electric shock during water accumulation is reduced.

The invention discloses a leakage current detecting fast protection circuit in the field of power electronics. The leakage current detecting fast protection circuit comprises a current transformer installed on a loop to be tested. A secondary side output winding of the current transformer is connected with both ends of a self-excited oscillator. An output end of the self-excited oscillator is connected with an input end of the fast protection circuit. An input end of the self-excited oscillator is connected with a non-ground end of a sampling resistor, and at the same time, the non-ground endof the sampling resistor is connected with an input end of a Chebyshev filter. An output end of the Chebyshev filter is connected with an input end of a sampling conditioning unit. The sampling conditioning unit includes a signal voltage dividing resistor and an operational amplifier. The output end of the Chebyshev filter is connected with one end of the signal voltage dividing resistor, and theother end of the signal voltage dividing resistor is connected directly with an output end of the fast protection circuit and an in-phase input end of the operational amplifier in the sampling conditioning unit. An output end of the sampling conditioning unit is connected with a controller. The leakage current detecting fast protection circuit of the invention is safer and more rapid when detecting a large leakage current, and can be used in photovoltaic grid-connected power generation.

The invention provides a stacked power supply cabinet. The stacked power supply cabinet comprises a top layer assembly and at least one battery module, in the stacked power supply cabinet, when the number of the battery modules is greater than 1 and the battery modules are stacked in sequence from top to bottom, the stacked battery modules establish an electrical connection path for external voltage, and conduction connection can be realized only through a power transmission line in the top layer assembly, so that electrification is realized; therefore, in the installation process of the stacked power supply cabinet, before the top layer assembly is installed, the stacked battery modules establish an electric connection path of external voltage to be uncharged, so that the risk of electricshock of a human body in the installation process of the stacked power supply cabinet is reduced, and the safety in the installation process of the stacked power supply cabinet is further improved.

The invention discloses an intelligent control magnetic field full coverage wireless charging desk comprising a desk body. A glass plate is embedded into one side of a desk top laid on the desk body, and a liquid crystal display is embedded into the other side. A transmitting coil is installed in a drawer below the desk top. A transmitting module and a single chip microcomputer connected with each other are arranged on a partition plate below the drawer. A power line is embedded into the desk top, the input end of the power line is hidden in the edge of the desk body, and the output end of the power line is connected with the transmitting module. A power supply method of the wireless charging desk is further provided. The wireless charging desk of the invention carries out charging by means of magnetic coupling resonance, is safe and non-radioactive, and reduces the risk of electric shock. The working state of the transmitting coil is controlled intelligently, and the power consumption is reduced. The wireless charging desk is universal and portable. The transmission of power is independent of the charging interface of equipment, and power supply and charging are more convenient. There is no conductive contact exposed. The desk top is clean and neat, and green and beautiful, and creates a good vision. The space of the table desk is saved fully.

The invention relates to an improved coaxial cable connector hot-line mounting technology. The technology comprises the following steps of (1) protective layer inductive voltage reduction, (2) hot-line construction protection and (3) coaxial cable connector technology implementation, wherein the step (1) comprises the sub-steps that by the adoption of a vacuum breaker, a cable protective layer is grounded and the potential of the cable protective layer is reduced, the step (2) comprises the sub-steps that by the adoption of a piercing tool, a coaxial cable insulating layer is pierced at the upper end of a coaxial cable to be constructed, and a coaxial cable core is grounded, and the step (3) comprises the sub-step that a special construction technology of a coaxial cable connector is adopted to conduct construction. Compared with the prior art, the improved coaxial cable connector hot-line mounting technology has the advantages of being simple, capable of reducing cost and the like.

The invention relates to the technical field of charging equipment, and discloses a three-phase charging plug pulled out by a single hand, and the three-phase charging plug comprises an insertion block and a base, a copper sheet is movably connected to the insertion block, the insertion block and the base are both cuboids, and a lifting mechanism is arranged on the insertion block, a sliding mechanism and an inserting guide mechanism are arranged on a clamp block turnover mechanism, a clamp block fixing mechanism a clamp block release mechanism and the base, the lifting mechanism comprises a sliding plate, a first sliding groove, a first spring and a first jacking column, the first sliding groove is formed in the insertion block, the first jacking column is slidably connected with the first sliding groove, one end of the first spring is fixedly connected with the bottom surface of the first jacking column, the other end of the first springis fixedly connected with an insertion block, a sliding plate is slidably connected with the first sliding groove, one end of a second connecting rod is fixedly connected with the top face of the sliding plate, the first jacking column abuts against the bottom face of the groove, so that the first jacking column retracts into the insertion block, the first jacking column pushes hydraulic oil in the first sliding groove to drive the sliding plate to push the second connecting rod, and the second connecting rod drives a copper sheet to slide out of the insertion block, so that a simple mechanical mechanism is low in cost and high in reliability.

The invention discloses a device for measuring the height of an overhead line. The device at least comprises an overhead line observation device which is connected to a vertical angle measuring instrument through an observation device connecting piece. The overhead line observation device and the vertical angle measuring instrument are connected to the side face of a distance measuring device clamp seat through the observation device connecting piece. A laser distance measuring device is installed above the distance measuring device clamp seat. The bottom of the distance measuring device clamp seat is connected to a telescopic bracket through a nut. According to the device for measuring the height of an overhead line, the overhead line observation device and the vertical angle measuring instrument are combined to carry out the accurate measurement of a vertical angle, the laser distance measuring device is used to measure a horizontal distance, through the measured vertical angle and the horizontal distance, a corresponding overhead line height is conveniently, rapidly and accurately calculated, the strength of a field operation is reduced, the electric shock risk in a field operation process is reduced, at the same time, the working efficiency is improved, and the device for measuring the height of an overhead line is especially suitable for measuring a line height in the vertical section measurement of a field overhead line.