30results about How to "Avoid electric injury" patented technology

The invention provides an overhead line coiling and uncoiling device of a charge connecting line, and belongs to the field of a charge gun connecting line protection device. The device comprises a charging pile, wherein the charging pile is arranged on the bottom surface of a ceiling of a charging station; the bottom surface of the ceiling of the charging station is provided with connecting rods; the connecting rods are positioned on the two sides of the charging pile; transverse tracks are connected with the ceiling of the charging station by the connecting rods; certain ends of the transverse tracks are provided with a line outlet; the transverse tracks are provided with a line inlet corresponding to the position of the charging pile; a slide block is arranged on the transverse tracks; the charge gun connecting line leads in from the line inlet, bypasses the slide block and gets out from the line outlet; a spring is arranged between the slide block and the end face at one end of the transverse track, so the charge gun connecting line does not trail on the ground, the service life of the charge gun connecting line is prolonged, the charge gun connecting line is not stepped on or crushed by an electric vehicle, and insulating skin is prevented from being damaged to prevent unexpected situations.

The invention relates to an orthopedics department reset positioning robot, which solves the technical problem that an existing orthopedics department operation robot is low in reset precision during an operation and comprises a reset robot body, a navigation robot and a positioning robot body, the reset robot body comprises a reset platform, a far-end fixator and a far-end reference frame, and the far-end reference frame is fixed to the far-end fixator; the far-end fixator comprises a connecting base plate, a movable connecting plate, a first locking device, a reference frame, a first connecting side plate, a second connecting side plate, a first fixed sleeve, a second fixed sleeve, a fixing plate, a first fixed needle, a second fixed needle, a third fixed sleeve, a fourth fixed sleeve, a third fixed needle and a fourth fixed needle. The invention is widely applied to orthopedic surgery.

The invention discloses a fault diagnosis device for electrical equipment using smart socket. According to a specific embodiment of the present invention, based on the measured current of the corresponding load and the measured voltage of the corresponding circuit measured by a converter and a voltage sensor of the smart socket and the zero-phase current measured by the zero-phase converter, the harmful leakage current, overload, parallel arc and series arc precursor of each load are diagnosed in real time and the diagnosis result is transmitted to the user terminal, thereby preventing electrical damage of the corresponding load.

The invention provides a high-safety central-positioned switch cabinet, which is characterized in that a switch cabinet emergency trip operating mechanism is arranged at a cabinet door of the switch cabinet so as to operate an emergency trip button through the door at a closing state of the cabinet door; the switch cabinet is internally provided with a cabinet door closing state locking mechanism, thereby being capable of ensuring that the cabinet door can be prevented from being opened at an off state of a grounding switch; and the switch cabinet is further provided with a cabinet door opening state grounding switch operating shaft locking mechanism, thereby being capable of ensuring that an operating shaft is prevented from rotating when the cabinet door is open, and avoiding occurrence of misoperation of a grounding switch. The high-safety central-positioned switch cabinet performs sufficient optimization on manual operations of the field personnel at each cabinet door of the switch cabinet so as to guarantee the safety of the maintenance personnel.

The invention discloses an automatic voltage withstanding capacitance testing machine for a capacitor core. The automatic voltage withstanding capacitance testing machine comprises a detection system,a PLC control system, a host computer, an executing mechanism and an alarm mechanism, wherein the detection system comprises a scanning gun, a core position sensor, a machine origin sensor and a product origin sensor; the executing mechanism comprises a conveying device, core clamping equipment, a cylinder driving unit, a testing module, a servo motor, a voltage withstanding machine and a capacitance tester; guide rails are arranged on both sides of the conveying device; the servo motor drives the testing module to move on the guide rail; the machine origin sensor and the product origin sensor are arranged on the testing module; both the voltage withstanding machine and the capacitance tester are connected with the testing module and PLC control system respectively; and the testing moduleis used for testing the voltage withstanding condition and the capacitance value at a preset position of the capacitor core. The automatic testing of the voltage withstanding capacitance of the capacitor core by the testing machine replaces manual testing of the voltage withstanding capacitance of the capacitor core. The testing machine has the advantages of safety in operation, precise control and high production efficiency.

The invention relates to an electric pressure cooking saucepan which comprises a pan cover and a pan body. The pan cover is connected with the pan body in an engagement manner and an electric connector is arranged between the pan cover and the pan body. The electric connector comprises a set of upper contactors and a set of lower contactors; the upper contactors are arranged on the pan cover and electrically connected with electric elements which are internally arranged in the pan cover; the lower contactors are arranged on the pan body and electrically connected with electric elements which are internally arranged in the pan body. The electric pressure cooking saucepan of the invention realizes the electric connection between the pan cover and the pan body in an engagement manner so as to be beneficial to arranging the electric elements on the pan cover for controlling pressure and temperature, automatically deflating, etc. Therefore, the electric pressure cooking saucepan of the invention has the advantages of improving the accuracy for controlling pressure and temperature, simple structure, low cost, etc.

The invention discloses a detection-type tester grounding wire. The grounding wire comprises a grounding wire body, a detection wire, a wiring terminal, a detection module and a grounding wire clamp;the grounding wire body is connected between the wiring terminal and one clamping plate of the grounding wire clamp, and the detection wire is connected between the wiring terminal and the other clamping plate of the grounding wire clamp. The grounding wire has a grounding wire self-detection function, and whether the grounding wire is in a good state or not can be more directly shown. The grounding wire has the function of detecting whether grounding is good or not, and personnel electric injury or instrument burnout caused by poor grounding is avoided. The grounding wire is simple and clearin principle, the grounding wire clamp is used for clamping the 'ground' to form an on-state loop, and whether the grounding wire is well grounded or not can be detected at any time by pressing a small switch. A buzzer can buzz and emit light if the grounding wire is well grounded, the buzzer cannot buzz or emit light if the grounding wire is not well grounded or is not grounded, and the groundingwire has a high identifying degree and can be used in different working environments.

The invention provides a bypass transformer switch operation CT secondary current loop switching method comprising the following steps: in a main transformer switch and bypass switch CT secondary current loop, setting a connection state as an open circuit as a switching object, and setting a connection state as a conduction as a target object; the main transformer protection device exiting from the protection state; short-circuiting and grounding the differential protection function connecting sheet in the target object, and disconnecting the target object from the main transformer protectiondevice; short circuits among the four differential protection function connecting pieces in the switching object and connecting with the main transformer protection device, and further carrying out the abnormality detection on connection; and after the detection is normal, putting the main transformer protection device into a protection state, so that the switching object is connected with the main transformer protection device, the switching object is changed from an open circuit to conduction, and the target object is changed from conduction to open circuit. By implementing the method, the problems existing before and after switching of an existing CT secondary current loop can be solved, and hidden dangers can be found in time.

The invention relates to the technical field of detecting devices, in particular to a lamp fault detecting system. By means of automatically monitoring and processing a lamp fault, the lamp fault detecting system can effectively save physical strength for manual detection, simplify the detection manner and improve work efficiency. Meanwhile, workers can be far away from an electrified lamp duringlamp detection, electrical injuries of the workers caused by the electrified lamp can be effectively avoided, and the safety and practicability are improved. The lamp fault detecting system comprisesa workbench, two groups of supporting legs, a centralized control box, two groups of first supports and two groups of first sensors. The two groups of supporting legs are evenly installed on the lowerside of the workbench. The centralized control box is installed at the left end of the workbench. A conveying device is transversely arranged on the front side of the top end of the workbench.

The invention discloses a safety type multi-accessory power distribution box based on the Internet of Things, belongs to the technical field of power distribution boxes, and can realize the arrangement of a specially-made safety protection system and a door lock control system. The safety protection system can be in linkage cooperation with the door lock control system and a safety monitoring center through the Internet of Things, so that when an electric leakage phenomenon occurs at a power distribution cabinet body, the safety protection system not only can turn on a warning lamp to give out a warning, but also can cut off a power supply and lead electric leakage to the ground, and can control an intelligent electronic lock to be forcibly locked at the same time, so that the safety performance is greatly improved. In addition, an infrared monitoring assembly can monitor the periphery of the power distribution cabinet body, and when a person walks in a protective fence, the safety protection system can make a judgment, and when it is judged that the person enters abnormally, the safety protection system can reflect the situation to the safety monitoring center in time, so that the worker can find that the person enters the protective fence abnormally in time, and the safety performance is further improved.

The invention discloses a wiring method for safe grounding of electric floor heating. The wiring method comprises the steps that a, a metal mesh is paved on a plane matched with the metal mesh; b, a first cable is electrically connected with an external power supply, and the outer surface of the first cable is wrapped with an insulating layer; c, a plurality of second cables are also placed on themesh surface of the metal mesh, all section cables are electrically connected with the first cable in parallel, and the outer surfaces of the second cables are also wrapped with insulation layers; d,a first metal wire which is of a multi-section bending structure is placed on a plane formed by the first cable and the second cables, and the first metal wire is grounded; and e, the first metal wire is wound on the metal mesh though a plurality of second metal wires in the length direction of the first metal wire, and spacing is formed between two adjacent second metal wires. Therefore, the problems that in the prior art, when the electric floor heating has local electric leakage, personal injury is caused to a user, and potential safety hazard exists are solved.

The invention relates to an adjustable capacitor, and particularly discloses a capacitor. The capacitor comprises a bottom plate and a top plate obliquely arranged on the bottom plate; two ends of the bottom plate are vertically connected with a first metal plate and a second metal plate with different heights; the top plate and the bottom plate are connected via the first metal plate and the second metal plate; a spiral electric capacity is arranged on the bottom plate; the electric capacity is connected with the first metal plate; the lower surface of the top plate is provided with a first sliding shaft and a second sliding shaft in mutual parallel; the first sliding shaft and the second sliding shaft are provided with a conductive contact block; both the first sliding shaft and the second sliding shaft are in sliding connection with the conductive contact block; the conductive contact block is contacted with the electric capacity; the conductive contact block is electrically connected with the second metal plate and an inductor is connected between the conductive contact block and the second metal plate; the second sliding shaft and the second metal plate are connected; and the first sliding shaft passes through the top plate and is connected with a resistor via a wire. The capacity changes automatically along with changes of load current and frequency.

The invention provides a power transmission line installation and construction grounding device based on a power transmission and transformation project. The device comprises a tower body, wherein transverse connecting plates are connected to two side frames of the top end of the tower body respectively, transverse supporting plates are arranged on the lower sides of the transverse connecting plates, two sets of vertical plates are further connected to the middle of the top of the tower body, and a vertical insulating sleeve is inserted into the middle of the inner side of the tower body in a penetrating mode; a lightning protection part which is mounted in the middle of the top of the tower body; a winding mechanism which is mounted on the transverse supporting plate; and a protection piece which is arranged at the outer end of the bottom side of the tower body in a sleeving manner. In thunderstorm days, the upper protective cover is pulled through the pull rope, so that the upper protective cover slides towards the two sides on the guide rod, the lightning rod is exposed, the lightning rod can play a lightning protection role, and in case of strong wind, the lightning rod shakes in a small range under the action of the lower protective cover and the supporting spring, and the phenomenon that the lightning rod is easily broken due to fixed connection is avoided; by arranging the protection piece, the effect of protecting the bottom of the tower body is achieved.

The invention relates to a high-voltage power transformation box, in particular to a high-voltage power transformation box capable of repelling birds and insects. The objective of the invention is to provide the high-voltage power transformation box with the bird repelling and insect preventing functions, wherein the high-voltage power transformation box is relatively high in safety. The high-voltage power transformation box with the bird repelling and insect preventing functions comprises a power transformation box body, rotating blades, a pressing assembly and the like, the pressing assembly is arranged on the upper portion of the power transformation box body, and the two rotating blades used for repelling birds are rotationally arranged on the pressing assembly. When the supporting table moves downwards, rotating blades can be driven to rotate, so that birds staying at the top of the supporting table can be driven away, the birds are prevented from being damaged by electricity, the safety is high, then a double-shaft motor serves as driving force to drive a spray head to move upwards, and then a wedge-shaped block extrudes a piston rod to move towards the inner side; therefore, the spray head sprays the insecticide for insect prevention of the power transformation box.

The invention discloses an environment-friendly insect expelling device for garden trees, and belongs to the technical field of garden insect expelling. The arrangement of a power grid insect killingassembly can be achieved, insects can be effectively expelled in an electric killing mode to prevent the trees from being invaded by insect pests, the harm to the surrounding environment and the treescan be effectively avoided in comparison with the prior art, and the environmental protection performance is obviously improved; the power grid insect killing assembly is powered by solar energy, energy consumption is reduced, and the environmental protection performance is further improved; the output current of the power grid insect killing assembly is smaller than the safety current of a humanbody, and the safety performance is guaranteed; a trunk connecting assembly and a reinforcing connection assembly are arranged, the environment-friendly insect expelling device can be conveniently installed on a tree trunk through the trunk connecting assembly, connection between the environment-friendly insect expelling device and the tree trunk can be further reinforced through the reinforcingconnecting assembly, the environment-friendly insect expelling device is effectively prevented from falling off, and stability is improved; a conductive rod is further arranged, pests on the tree trunk can be electrically killed in a large area in rainy days, and the pest expelling effect is greatly improved.