7results about How to "Avoid electric shock" patented technology

A kind of power device parallel type power module and capacitor charging and discharging method, power module includes two or more than pressure type power device, the two or more than pressure type power device adopts the physical form of half bridge group string upper and lower parallel;The half bridge group string of the pressure type power device is connected in parallel by silicon pile composite busbar;Each power module is provided with pneumatic short-circuit switch, in the case of multiple power module series connection, the pneumatic short-circuit switch is connected in series with all DC capacitors, and charging and discharging is carried out through the ground loop of flexible AC transmission equipment AC, DC valve side;The pneumatic short-circuit switch is connected with gas driving pipeline, and the gas driving pipeline is connected with valve-based gas pressurizing device.The power module can effectively improve the capacity of flexible AC transmission equipment, so that it has short-time frequency modulation capacity output, provides technical scheme support for new power system construction, and guarantees system safety and stability;The provided capacitor charging and discharging method can improve maintenance efficiency and enhance product reliability.

The invention relates to the technical field of power distribution boxes, in particular to a power distribution box based on multiple trigger type circuit protection and a control method thereof.The power distribution box comprises a box body, a master control switch and a circuit breaking unit, and a shifting rod is arranged on the master control switch; the box body is provided with an indicating lamp. The circuit breaking unit comprises a stirring frame, a bidirectional motor, a straight gear, a transmission assembly, a clutch assembly and a crank. The stirring frame is movably arranged in the box body in the vertical direction, and a plurality of meshing teeth are vertically and uniformly arranged on the side wall of the stirring frame; the bidirectional motor is horizontally arranged on one side of the shifting frame; the straight gear is fixedly arranged at the output end of the bidirectional motor and is meshed with the meshing teeth of the shifting frame; the transmission assembly is arranged on the straight gear, and the transmission assembly and the straight gear are in two-way transmission; the clutch assembly is arranged on the transmission assembly; the crank is arranged on the clutch assembly. According to the invention, automatic power-off and manual power-off are combined, the occupied space of the distribution box is reduced, and the operation safety of workers is ensured.

The utility model discloses an arc protection socket, which comprises a main body, the inner wall of the main body is provided with a sliding cavity, the inner wall of the sliding cavity is slidably connected with a front shell, the inner wall of the main body is provided with a circuit metal sheet, and the front surface of the front shell is provided with jacks. According to the electric arc prevention socket, through the arrangement of the main body, the sliding cavity, the front shell, the circuit metal sheet, the jack, the fixed shell and the screw rod, when the electric arc prevention socket is used, the screw rod can perform threaded motion with a fixed block of the front shell when rotating, so that the front shell can slide back and forth in the sliding cavity of the main body, and the distance from the jack to the circuit metal sheet is adjusted; therefore, the purpose that the metal sheet of the plug can be contacted with the circuit metal sheet after being completely inserted into the jack is achieved, the electric shock phenomenon caused by the fact that a child touches the metal sheet of the plug with fingers and the plug is contacted with the circuit metal sheet when the metal sheet of the plug is inserted into the jack is prevented, and the safety performance of using the socket is improved.

The utility model discloses a kind of automotive indoor touch top light, including installation box, the inside of the installation box is equipped with connecting mechanism, the outer surface of the installation box is equipped with control mechanism, the outer surface of the installation box is fixedly connected with adjusting mechanism, the outer surface of the installation box is equipped with illuminating lamp, the outer surface of the installation box is equipped with threading hole.This device utilizes the knob set, can rotate rotating lever, to drive second gear to rotate, utilize the second gear set, can drive first gear to rotate, in turn drive threaded rod to rotate, realize to make threaded cylinder to translate, utilize the adjusting piece set, the resistance output of resistance rod can be adjusted, to realize the resistance of illuminating lamp is adjusted, realize the brightness of illuminating lamp is controlled, solved because directly through switch or button, the light is opened or closed, to cause the problem that the brightness of illuminating lamp cannot be adjusted.

The utility model relates to a code scanning equipment technical field, concretely is a kind of automatic reading RFID and the identification terminal equipment of scanning code, including equipment body and fixed rack, the back of equipment body is equipped with identification scanning head, fixed rack is installed in the back of equipment body, the back of equipment body is equipped with movable slot and battery compartment. Compared with prior art, the patent is set by setting annular lamp strip, first wire, intercommunication component and second wire, power inside lithium battery is transmitted to the inside of first wire through intercommunication component by second wire, and annular lamp strip is lit, then by adjusting pull plate, so that the limiting plate is separated from the limiting slot, then the protective plate is removed, it can be in dim environment to scan label, annular lamp strip can illuminate label at certain height, different length label can be scanned, cannot appear the situation of reading label internal information, improve the use efficiency of the technical problem of scanning code identification equipment.

The utility model discloses pneumatic lifting equipment for cleaning underwater impurities, which belongs to the technical field of underwater impurity cleaning equipment and comprises an air inlet and exhaust pipeline, a tail gas exhaust pipeline, a pneumatic extraction pipeline, a connecting plate, a drainage pipeline, a pneumatic component, a handle and an air suction component. The pneumatic component is arranged on the left side of the pneumatic extraction pipeline, one end of the drainage pipeline is installed on the left side below the pneumatic component, the air suction component is installed above the pneumatic component, the right end of the air suction component is connected with the air inlet and exhaust pipeline, and the right end of the air inlet and exhaust pipeline is inserted into the pneumatic extraction pipeline. The other end of the tail gas exhaust pipeline is inserted into the pneumatic extraction pipeline, and the handles are installed on the front side and the rear side of the upper end of the pneumatic assembly. The problems that in the prior art, due to the fact that sweeping equipment is heavy and needs high voltage to be used, underwater operation cannot be carried out, and potential safety hazards exist are solved. And the equipment safety and practicability are improved.

The utility model discloses an anti-touch power switch, which relates to the technical field of power switches and comprises a switch box, the bottom of the switch box is fixedly connected with a bottom box, the top of the switch box is provided with an arc groove, the inner side of the arc groove is movably connected with a switch flashboard through a rotating rod, and the middle part of the side surface of the switch flashboard is fixedly connected with a limiting rod. According to the anti-touch power switch disclosed by the utility model, the magnet plate at the bottom of the arc groove is clamped on the inner side of the inner groove of the switch flashboard made of cast iron, when an operator carries out circuit maintenance, the position of the switch flashboard can be preliminarily fixed, and meanwhile, the inclined plate in the positioning assembly on the side surface of the switch box is matched with the spring through the boss; and the inclined plate can be clamped on the inner side of the positioning groove on the inner side of the switch flashboard, so that the position of the switch flashboard can be doubly locked, and the phenomena that an operator is easy to touch the power switch, the power switch slides to the top to form a passage, and the operator gets an electric shock can be avoided.