273results about How to "Avoid Risk of Electric Shock" patented technology

The invention discloses an electric power supply device with an electric shock protection function. The electric power supply device comprises a power supply seat and a power supply head, wherein the power supply seat consists of a transmission part and a power supply part; a first threaded rod is arranged in the transmission part and is provided with a guidance sliding block; the first threaded rod extends to two sides; the left side extension end of the first threaded rod is in running fit connection with a first motor; the right side extension end of the first threaded rod is in rotation connection with a power supply part; the bottom of the guidance sliding block is fixedly connected with the power supply head; the right side end surface of the power supply head is provided with a contact pin; and a second sliding cavity, a power supply cavity and a wire guiding cavity, which are oppositely arranged with the power supply head, are arranged in the power supply part in sequence from left to right. The device has a simple structure, the possibility of accidental electric shock due to an unplugging state can be effectively avoided, in addition, automatic plugging control can be realized, plugging stability is improved, and the possibility of electric shock due to the contact of people can be lowered.

The invention discloses a charging pile device for electric vehicles. The charging pile device comprises a pile body, a canopy, a supporting post, a base and a plurality of groups of power supply components, wherein the canopy is arranged at the top of the pile body, the supporting post is arranged at the bottom of the pile body, the base is arranged at the bottom of the supporting post, and the power supply components are arranged on the left end face of the pile body. An accommodating cavity is arranged in every power supply component, slide guide cavities are formed in the upper and lower sides of the accommodating cavity symmetrically and provided with screws, the right ends of the screws are connected with first motors, moving blocks are arranged in the accommodating cavities, projecting blocks extending into the slide guide cavities are arranged on the upper and lower sides of the moving blocks symmetrically and are connected with the screws in a thread fit manner, and external thread projecting portions are arranged on the left sides of the moving blocks. The charging pile device for the electric vehicles is simple in structure, high in safety, convenient to use and capable of protecting personnel from electric shock due to touching power supply holes.

The invention discloses a direction board device for a bridge. The direction board device for the bridge comprises a base. A pushing cavity is formed in the base. Sliding connection cavities are formed in the upper side and the lower side of the pushing cavity correspondingly. Each sliding connection cavity is provided with a spiral rod, and the right side end of each spiral end is in power connection with a first driver. A sliding connection block is arranged in the pushing cavity. Pushing blocks extending into the sliding connection cavities correspondingly are arranged on the upper side and the lower side of the sliding connection block correspondingly. The pushing blocks are connected with the spiral rods through spiral threads in a matched mode. An external spiral thread joint part is arranged on the left side of the sliding connection block. A storage tank is arranged in the external spiral thread joint part. Sliding holes are formed in the position, on the right side of the storage tank, in the sliding connection block. Plug holes are formed in the corresponding inner wall, on the right side of the sliding holes, of the base. A direction board is arranged on the left side of the storage tank correspondingly. The direction board device for the bridge is simple in structure, convenient to operate and high in safety, power supply connection is firm, and the risk that people get an electric shock when touching the plug holes is effectively avoided.

The invention relates to a system for inhibiting a PID (Proportion-Integration-Differentiation) effect of a photovoltaic cell panel. According to the system, a PID inhibiting device is connected with a direct-current (DC) input side of an inverter of a photovoltaic power generating system or three terminals, i.e., an output positive terminal, an output negative terminal and a ground terminal of a photovoltaic assembly and can be used for achieving that the voltage-to-ground of the negative pole of the system is not negative, so that the induced attenuation of electric potential of the assembly is inhibited; the PID inhibiting device is made up of an isolated-type DC/DC circuit system. The function of the PID inhibiting device can be used for achieving that the voltage-to-ground of the negative pole of the system is not negative, so that the induced attenuation of the electric potential of the photovoltaic cell assembly is inhibited.

The invention discloses a bridge pipeline supporting structure. The bridge pipeline supporting structure comprises a supporting base and a supporting piece connected with the supporting base in a matched manner; the supporting piece is composed of a supporting ring, a fastening plate and a supporting rod; the supporting ring is fixedly arranged on the left side of the fastening plate; two end portions extending outwards are symmetrically arranged in the ring body of the supporting ring in the up-down direction; the end portions are provided with caution lamps; the supporting rod is fixedly connected to the right side of the fastening plate; the end face of the side, backing to the fastening plate, of the supporting rod is provided with an inclined angle part; a left inserting connection groove is formed in the top end of the portion, between the inclined angle part and the fastening plate, of the supporting rod; an inserting connection bin used for being connected with the supporting rod in a matched manner is arranged in the supporting base; a locking groove is formed in the portion, above the inserting connection bin, of the supporting base; an internal thread hole is formed in the top end of the locking groove in a communicated manner; a left inserting connection block stretching into the inserting connection bin is arranged in the locking groove; a first tension spring is arranged at the top end of the left inserting connection block; and a first sliding groove is vertically formed in the portion, on the right side of the inserting connection bin, of the supporting base in an extending manner.

The invention belongs to the power distribution box technical field and relates to an Internet of Things-based intelligent distribution box and a control method thereof. The Internet of Things-based intelligent distribution box includes a box body, a liquid crystal touch screen, a control main board, a smart circuit breaker, a wireless communication module, a wireless terminal device, a cloud server and a system power source for power supply; the liquid crystal touch screen is electrically connected with the control main board; the wireless communication module is electrically connected with the smart circuit breaker; the wireless communication module is in communication connection with the control main board; the control main board is in communication connection with the cloud server; andthe wireless terminal device is in communication connection with the control main board. With the Internet of Things-based intelligent distribution box and the control method thereof of the inventionadopted, the safety of home power distribution is improved; and the risk of electrical fire accidents can be lowered. The system can be linked with a fire protection system, so that fire potential safety hazards can be effectively prevented and handled when no one is at fire sites, and therefore, the safety of a smart home system can be improved. The control method can be controlled through speech or remotely, and therefore, with the method adopted, an intelligence degree is high, home life can be safer, energy can be saved, and disasters can be prevented.

The invention discloses a quick overlapping tool for a draining line applied to ground potential operation, which belongs to the technical field of power operation equipment, comprises a main clamping seat and a secondary clamping seat used for clamping an insulated wire and further comprises a sleeving rod. The main clamping seat is provided with a sliding groove, and the secondary clamping seat is arranged in the sliding groove movably. The front end of the sleeving rod is connected with the secondary clamping seat, and the sleeving rod drives the secondary clamping seat to moveably clamp the insulated wire with respect to the main clamping seat. The main clamping seat is provided with a clamping block used to have the drainage line clamped tightly. The main clamping seat and the second clamping seat have the insulated wire tightly clamped, and when the clamping block has the drainage line clamped tightly, the insulated wire and the drainage line are electrically communicated. The quick overlapping tool for draining line provided by the invention enables that the overlapping of a drainage line can be completed in the form of ground potential operation, which greatly reduces manpower and equipment needed for overlapping. The working time required for the overlapping is also shortened considerably. With the quick overlapping tool of the invention, the effective overlapping can be realized without stopping the power supply, so as to ensure the continuity and reliability of the power supply.

The invention relates to the technical field of wiring devices, and particularly relates to a wire clamp mounting tool and intelligent equipment. The wire clamp mounting tool comprises a frame body, aclamping mechanism, a wiring mechanism and a controller. The frame body is mounted on a moving arm and is provided with a placing part for placing the wiring mechanism; the clamping mechanism is installed on the frame body and is provided with a clamping end which is located at the placing part and clamps the wiring mechanism; a wire locking mechanism is arranged on the frame body corresponding to the wiring mechanism; when the moving arm moves, a main wire and a drainage wire are correspondingly connected into the wire locking mechanism and the wiring mechanism respectively, and the main wire and the drainage wire are fixed by the wire locking mechanism; and the controller is connected with the clamping mechanism, the wire locking mechanism and a wiring driving mechanism for driving thewiring mechanism to carry out wiring, and controls actions of the clamping mechanism, the wire locking mechanism and the wiring driving mechanism. The wire clamp mounting tool is high in automation degree, low in labor intensity and safer.

The invention provides a control method and system for falling-into-water protection of an electric vehicle. The control method for falling-into-water protection of the electric vehicle comprises thesteps that an ECU controller receives pressure data detected by a hydraulic sensor and vehicle body falling-into-water inertia impact force detected by an acceleration sensor; whether the vehicle falls into water or not is judged according to the pressure data and the vehicle body falling-into-water inertia impact force; and when it is judged that the vehicle falls into water, a high-voltage circuit of the vehicle is cut off and all doors and trunks are unlocked. According to the scheme, the ECU controller is used for receiving detection data of the acceleration sensor and the hydraulic sensor, the falling-into-water condition of the vehicle can be judged in time, the high-voltage circuit of the electric vehicle is cut off and the vehicle door is unlocked in time when the vehicle falls into water, the electric shock risk of personnel in the vehicle is avoided, the damage degree of the vehicle is reduced, and the vehicle safety is improved.

The invention discloses an electric energy transfer method and an electric energy bus. A plurality of power supply devices and power receiving devices are respectively connected with the electric energy bus through a unified control switch, thereby achieving the controllable conversion of electric energy between the power supply devices and the power receiving devices.

The invention belongs to the technical field of medical devices and specifically relates to an intelligent traditional Chinese medicine fumigation instrument. The intelligent traditional Chinese medicine fumigation instrument comprises a housing, a fumigation steam generation device and a steam chamber, wherein the fumigation steam generation device is provided with a heater, a fumigation steam pot and a sealing cover; a steam outlet, a water outlet pipe and a water level sensor are mounted in the fumigation steam pot; a water control electromagnetic valve is mounted on the steam outlet and the water outlet pipe respectively; a fumigation bed has steam areas; each of the steam areas comprises a steam room, a thermal insulation material and a temperature sensor; a steam pipe is communicatedwith the bottom of each of the steam areas; a 24V or 12V steam electromagnetic valve is mounted on each of the steam pipes; a control screen is mounted at the upper part of the housing; a controlleris arranged in the housing; the temperature sensors, the steam electromagnetic valves and the control screen are electrically connected with the controller. The intelligent traditional Chinese medicine fumigation instrument is an intelligent combined type traditional Chinese medicine fumigation instrument which can be used for implementing local and whole-body fumigation simultaneously, the temperature of the surface of skin of a treated position can be accurately measured, and the temperature of the steam chamber can be monitored in real time. Therefore, the intelligent traditional Chinese medicine fumigation instrument has good application prospect.

The invention discloses a charging pile device for an electric automobile, and the device comprises a pile body, a rainproof shed disposed at the top of the pile body, a supporting column disposed at the bottom of the pile body, a pedestal disposed at the bottom of the supporting column, and a plurality of groups of power supply modules disposed on the left end face of the pile body. The interior of each power supply module is provided with an accommodation cavity, and the upper and lower sides of the accommodation cavity are symmetrically provided with sliding cavities. The sliding cavities are provided with screws, and the right ends of the screws are connected with a first motor. The interior of an accommodation cavity is provided with a mobile block. The upper and lower sides of the mobile block are symmetrically provided with convex blocks which stretch into the sliding cavities. The convex blocks are in threaded cooperation connected with the screws, and the left side of the mobile block is provided with a thread convex part. The device is simple in structure, is convenient to operate, is high in safety, and effectively avoids the electric shock risks caused when a person touches a power supply hole.

The invention relates to the technical field of current measurement instruments, in particular to a current measurement device added with a lengthened operating handle. The current measurement devicecomprises a plier-type current meter and the telescopic operating handle, wherein the plier-type current meter is provided with a jaw button for opening a jaw of the plier-type current meter and a reading button for opening a reading locking key of the plier-type current meter. The plier-type current meter is connected to the top of the operating handle, and a movable handle is connected to the bottom of the operating handle. A transmission mechanism arranged in the operating handle is connected to a movable handle, the movable handle can downward pull the transmission mechanism to extrude thejaw button so as to open the jaw button or upward push the transmission mechanism to extrude the reading locking key so as to lock a reading of the plier-type current meter. When the current measurement device is used, an operator can achieve jaw button or reading button pressing by tightening or loosening the movable handle on the ground and does not need climbing rods for climbing a tower to approach wires and measure current, the current measurement device is safe and quick to operate and high in working efficiency, saves time and labor and can avoid electric shock and falling risk.

The invention discloses a battery management system. The battery management system comprises a machine body, a first cavity arranged in the machine body and a second cavity arranged in the bottom wallof the machine body and provided with a downward opening; a first sliding block is arranged in the first cavity in a way capable of sliding up and down, first contact points are arranged in the bottom wall of the first sliding block in a bilateral symmetric way; a threaded hole penetrating up and down is arranged in the first sliding block, a threaded rod extending up and down is arranged in thethreaded hole in threaded fit way, the bottom tail end of the threaded rod is in power connection with a driver fixedly arranged in the first cavity bottom wall; the top tail end of the threaded rod is rotatably arranged in the first cavity top wall. The battery management system disclosed by the invention is simple in structure and convenient for operation, the delay connection of a plug and a socket is realized through a mechanical structure, and the electric shock risk of the user is avoided; the socket realizes multi-level protection by using a reasonable structure, the security is high, and the automatic power connection in the charging process is realized, the operation is simple, and the practicability is high.

The invention provides a warehouse management system based on the Internet of Things and an application method thereof, the warehouse management system comprises a plurality of tools stored in warehouse shelves and a camera group, the camera group comprises a plurality of cameras arranged on each layer of shelves, and each camera is connected with an Internet of Things management platform throughan image recognition processor. According to the invention, the camera group collects the image information of each layer of goods shelf, the image recognition processor recognizes the recognition code of each tool according to the image information, and the Internet of Things management platform records the warehouse-in and warehouse-out states of the tools according to the recognition result, thereby achieving the automatic recording management of the warehouse-in and warehouse-out states of the tools. The management efficiency of the warehouse tools is improved. Compared with an existing tool management system based on the RFID tag identification technology, the system has the advantages that an RFID tag antenna and a chip which are made of metal do not need to be arranged on a tool, the risk of electric shock and electromagnetic interference of the RFID tag antenna are avoided, and the safety of the system is improved.

The invention provides an electric automobile control method and system and an electric automobile. The electric automobile control method is characterized by comprising the steps of receiving a maintenance instruction transmitted by automobile diagnosis equipment; controlling a charging relay to be turned off according to the maintenance instruction; detecting state information of a related device on a charging circuit while the charging relay is controlled to be turned off; and generating prompting information whether maintenance is allowed or not according to the state information of the related device on the charging circuit. According to the electric automobile control method, when maintenance personnel touch a high voltage part in the vehicle maintenance process, a maintenance request is transmitted by using the automobile diagnosis equipment so as to guarantee that high-voltage power-on is not started to avoid electric shock when the automobile receives the maintenance request;therefore, the electric shock risk caused when the maintenance personnel disassemble, touch and maintain the high voltage part is avoided and the forbidding of the high-voltage power-on function is guaranteed. And meanwhile, as the prompting information whether the maintenance is allowed or not is generated according to the state information of the related device on the charging circuit, the normal maintenance work can be carried out on the premise of guaranteeing the safeties of the maintenance personnel.

The invention discloses a lamp body and an LED-BR lamp. The lamp body comprises a plastic lamp shell and a radiator. The plastic lamp shell is composed of an upper portion, a neck portion, a middle portion and a lower portion which are integrally and sequentially connected from top to bottom and all hollow, and the two ends of the upper portion, the two ends of the neck portion, the two ends of the middle portion and the two ends of the lower portion are open. The upper portion is of a bowl-shaped structure. The wide end of the upper portion is connected with a light transmitting cover. The narrow end of the upper portion is connected with the upper end of the neck portion. The lower portion is connected with a lamp holder. The upper end of the neck portion stretches in an inner cavity of the upper portion in the axial direction to form a cylindrical part. The cylindrical part, the neck portion, the middle portion and the inner cavity of the lower portion communicate with one another to form a power source bin. The radiator is of a bowl-shaped structure. The narrow end of the radiator extends in an inner cavity of the radiator in the axial direction and is provided with a cylindrical boss, and an LED light source plate is installed on the surface of the cylindrical boss; and the radiator is embedded in the inner cavity of the upper portion and enables the cylindrical boss to be arranged outside the cylindrical part in a sleeving mode, and then the outer wall of the radiator is tightly attached to the inner wall of the upper portion. By using the lamp body, the LED-BR lamp has the advantages that the lamp body is integrally formed by the plastic lamp shell and the radiator which are matched with each other, the structure is simple, installing is convenient, electric shock risks are avoided, and automatic production is easy to achieve.

The invention provides a signal injection calibration method of an integral pulse magnetic field measurement system. The method includes the following steps that: 1) an external-connection magnetic field loop antenna of the integral pulse magnetic field measurement system is removed, and the area of the magnetic field loop antenna is measured; 2) sine wave signal small-signals of a certain fixed frequency are injected into the input end of the pulse magnetic field measurement system of which the magnetic field loop antenna is removed, and sine wave signal small-signals of the same frequency can be obtained at the output end of the system, and an oscilloscope is adopted to measure the injected sinusoidal signals and the outputted sinusoidal signals simultaneously; 3) the characteristic coefficient of the integral pulse magnetic field measurement system is calculated according to the amplitudes and frequencies of the injected signals and the outputted signals; 4) the measurement coefficient of the magnetic field measurement system is calculated according to the number of the turns of the magnetic field measurement loop antenna, the area of the magnetic field measurement loop antenna, and the characteristic coefficient of the integral pulse magnetic field measurement system. The signal injection calibration method of the integral pulse magnetic field measurement system of the invention has the advantages of low cost and convenient operation and easy operation, and can assist in preventing calibration personnel from being exposed to pulse magnetic field irradiation and electric shock risks, and can assist in ensuring personal safety.

The present invention provides a method and device for suppressing the ground common mode voltage of an inverter AC cable. Through a control unit, a control signal is generated according to inverter alternating current side voltage. The switch unit disconnects or connects the connection between a discharge unit and a reference ground according to the control signal. Finally, the discharge unit discharges the ground common mode voltage of an inverter AC cable, thus the discharge of the ground common mode voltage of the inverter AC cable is carried out through the discharge unit when the switch unit is switched on. The discharge of the ground common mode voltage of an inverter AC cable is realized in switching off an alternating current switch to maintain without an isolation sampling scheme with high cost and a high device insulation level requirement in the prior art, and the risk of electric shock to maintenance personnel is avoided.

The invention discloses a medical lamp assembly. The medical lamp assembly comprises a lamp holder and a lamp cap, wherein the lamp holder consists of an abutted connection part and a base part; a first screw rod is arranged in the abutted connection part; a sliding block is arranged on the first screw rod; the first screw rod is arranged in a manner of extending towards two sides; a first electric motor is in rotating fit connection with the left extending end of the first screw rod; the right extending end of the first screw rod is in rotating connection with the base part; the bottom end of the sliding block is fixedly connected with the lamp cap; insertion sheets are arranged on the right end surface of the lamp cap; a bulb is arranged at the lower end of the lamp cap; and a second sliding cavity, a power distribution chamber and a circuit cavity which correspond to the lamp cap are sequentially arranged in the base part from left to right. The medical lamp assembly disclosed by the invention is simple in structure, and accidental electric shock caused in an unplugged state can be effectively prevented; and automatic plugging control can be realized, so that the plugging stability is improved, and the possibility of electric shock of staff in contact with the medical lamp assembly is reduced.

The invention provides a medical endoscope trolley integrated with an isolating transformer device. The medical endoscope trolley comprises a trolley main body, wherein the isolating transformer device and partition boards for holding medical apparatuses are arranged on the trolley main body; the isolating transformer device comprises an isolating transformer, a current transformer, a secondary switch and a socket; the secondary stage of the isolating transformer is connected to the current transformer; and the current transformer is connected to the socket by virtue of the secondary switch. The medical endoscope trolley provided by the invention has the beneficial effects that by integrating the isolating transformer device on the trolley main body, a possible risk of electric shock to a patient in the case that total leakage current exceeds an allowable value when BF type or CF type equipment is used in a combined mode can be prevented, so that safety is enhanced.