35results about How to "Quick ground" patented technology

The invention discloses a three-station isolating switch which comprises a rack, disconnecting links, fixed contacts, grounding contacts and an operating mechanism. The rack is connected with a rotating shaft in a pivotal mode, and the rotating shaft drives the disconnecting links to rotate through first connecting levers and insulating pull rods. The operating mechanism comprises a shell, the shell is connected with a first operating shaft and a second operating shaft in a pivotal mode, and the first operating shaft is fixedly connected with the rotating shaft. The first operating shaft is fixedly connected with a first gear and an isolating limiting plate. The isolating limiting plate is provided with a first positioning hinge pin in a penetrating mode, and the two ends of the first position hinge pin are connected with the first operating shaft through two tension springs. The shell is provided with a switching-on groove, a switching-off groove and grounding grooves which are matched with the first positioning hinge pin. The second operating shaft is fixedly connected with a second gear and a connecting lever, wherein the connecting lever is connected with the shell through a second positioning hinge pin and a compression spring. The shell is provided with a second arc hole which is matched with the second positioning hinge pin. The second gear is not matched with the first gear in a switching-on state and a switching-off state and is matched with the first gear in a grounding state. The three-station isolating switch is compact in structure, reliable in action and convenient to maintain.

The invention provides a rapid grounding device for field high-voltage equipment. The rapid grounding device comprises an upper clamp plate, a lower clamp plate, a clamp adjustment assembly, a locking assembly, a wiring clamp assembly and a ground insertion assembly. The upper clamp plate and the lower clamp plate adopts the clamp adjustment assembly to realize distance and clamp force adjustment between the upper clamp plate and the lower clamp plate; the locking assembly for locking the upper clamp plate and the lower clamp plate is arranged between the upper clamp plate and the lower clamp plate; the upper clamp plate or the lower clamp plate is connected with the wiring clamp assembly; and the lower portion of the wiring clamp assembly is connected with the ground insertion assembly. Through the cooperation of a gear and a toothed bar, the upper clamp plate and the lower clamp plate can be clamped accurately and conveniently; an electric wire is allowed to be connected between the upper clamp plate and the lower clamp plate, and reliability and stability of the wiring are improved; a constructor can connect the electric wire between the upper clamp plate and the lower clamp plate or clamp the electric wire in the wiring clamp assembly according to actual demand; and through rotating a force application nut, rapid insertion of an insertion pin can be realized.

The invention relates to a ground mobile direct lightning protection system. The system comprises a lightning monitoring and early warning system, a lightning receiving device, a lifting system, a grounding system and an automatic control system, wherein the lightning monitoring and early warning system monitors the atmospheric electric field environment around a special vehicle in real time, theautomatic control system starts corresponding levels of early warning according to monitoring data of the lightning monitoring and early warning system, ascending or descending signals are sent to thelifting system and the lightning receiving device according to conditions, and grounding starting signals or grounding ending signals are sent to the grounding system, the lightning receiving devicevertically enters a direct lightning arresting mode upwards or is folded downwards according to the received signals, the lifting system ascends or descends according to the received signals, and thegrounding system is used for quickly and reliably grounding or withdrawing the special vehicle in the moving process or under the field temporary parking condition. The system is advantaged in that effective direct lightning protection can be provided for the special vehicle in the moving process or under the field temporary parking condition.

The invention discloses a cable terminal grounding wire, which relates to the technical field of high-voltage cable branching cabinet maintenance tools and is structurally characterized in that a through hole is arranged in the middle of a grounding wire contact plate, a hollow contact is sleeved in the through hole in a penetrating manner, internal threads are arranged in the hollow contact, one end is in threaded connection with a screw, and a sleeve further sleeves the hollow contact. One end of the sleeve is connected with an external thread arranged on a protrusion of the ground wire contact plate, an inner bayonet is arranged in the middle of one end of the insulating rod, the inner bayonet is matched with a screw of the hollow contact, and the ground wire is connected with a ground wire clamp. The cable terminal grounding wire has the beneficial effects that when the novel device is used in actual work, rapid, safe and reliable grounding of a cable terminal grounding wire and a cable terminal can be realized; according to the cable terminal grounding wire, the original hanging checking mode of large-area power failure for hanging the grounding wire can be changed in special occasions, so that the occurrence of large-area power failure accidents is avoided, the power supply reliability is guaranteed, and invisible safety benefits are created for enterprises and society.

The invention discloses a high-efficiency energy-saving rolling type multifunctional excavator, which comprises sheaves. A spacer sleeve, a spacing board and all blades are sequentially connected in series and fastened together by a plurality of long shafts and a plurality of positioning shafts; each of the sheaves on two end faces of the excavator is provided with an annular groove; a drawer roller lined with a small shaft is arranged in each annular groove; a traction frame linked with a tractor is linked with two small shafts respectively; each pair of the blades is linked by steel ropes; under the action of the drawer roller, the excavator rolls forward, the blades sequentially complete a whole process of earth excavation, folding and earth covering in each circle, and the cycle is continuously repeated; the excavator is integrally in cylindrical shape and the drawer roller is arranged at the position higher than the central height of the excavator, so that large torque is applied to the blades and the lever force is large, which provides conditions for reducing mechanical wear, oil material consumption, production cost and the like. The excavator has the biggest advantage of fundamentally changing a method for deeply tilling and digging earth.

The present invention relates to a cable grounding device and an insulation housing thereof. The cable grounding device is configured to achieve cable grounding, the cable comprises one section of cable wire exposed to the outside, and the cable grounding device comprises an insulation housing and a grounding clamp. The cable is coated with the insulation housing, and the insulation housing coatsthe cable wire. The insulation housing comprises an upper cover and a lower cover which are buckled and connected to open or close the insulation housing. The grounding clamp has a grounding end and aclamping end configured to clamp the cable wire. the cable grounding device can rapidly, simply and reliably achieve cable grounding so as to guarantee the life safety of maintainers.

The invention belongs to the technical field of power systems. An enclosed bus grounding wire device is characterized by comprising an insulating operating rod, a grounding wire and a plug-in type conductor; the plug-in type conductor comprises a conductor connecting seat, a tension spring, a left conductor clamping piece and a right conductor clamping piece; 2-3 left conductor clamping pieces are fixed to the left side of the upper end face of the conductor connecting base in the front-back direction, 2-3 right conductor clamping pieces are fixed to the right side of the upper end face of the conductor connecting base in the front-back direction, and V-shaped insertion openings are formed between the upper end portions of the left conductor clamping pieces and the upper end portions of the right conductor clamping pieces; the lower parts of the left conductor clamping pieces are connected with the lower parts of the right conductor clamping pieces opposite to the left conductor clamping pieces through tension springs; a grounding wire connecting sheet is in threaded connection with the conductor connecting seat through two screw rods, and the lower part of the grounding wire passes through the through hole of the insulating operating rod and then is positioned below the insulating operating rod; and the upper end part of the insulating operating rod is in threaded connection with the lower part of the conductor connecting seat. The grounding wire device is convenient to use and rapid in grounding. After the enclosed bus grounding wire device is adopted, the safety is good.

The invention discloses a fastening device providing highly effective electromagnetic interference shielding, which comprises a metal cap, a metal connector, a flange elastic piece and a metal nut, wherein the metal cap is connected with one end of the metal connector through threads; the flange elastic piece is installed in the metal connector; and the metal nut is connected with the other end ofthe metal connector through threads. The invention provides a fastening device providing highly effective electromagnetic interference shielding, adapting to quick passage of a copper terminal without extracting the flange elastic piece. The flange elastic piece has a hexagonal trapezoidal shape, which has a large grounding area, preventing surge and high-voltage breakdown, and is convenient to install, which saves working hours and realizes quick grounding without flipping a shielding layer. The fastening device has the advantages of a simple structure, a stable performance and a long service life.

The invention provides a grounding wire box which comprises a junction box main body and a copper woven belt. The junction box main body is provided with a through hole, an opening communicated with the through hole is formed at one side of the junction box main body, and a through groove is formed between the top of the junction box main body and the through hole. A first copper terminal and a second copper terminal are arranged at the two ends of the copper woven belt respectively, one end of the copper woven belt penetrates through the through groove, and the first copper terminal is located at the top of the junction box body and is connected with one end of the copper woven belt. The other end of the copper woven belt is fixed to the bottom of the through hole through the second copper terminal, and the copper woven belt is located in the through hole. The grounding wire box can be installed at the side of a low-voltage line for a long time, and the low-voltage line can be grounded by connecting the grounding wire when needing to be grounded.

The invention provides an intelligent temporary grounding device for overhauling of a 10-kilovolt overhead line, and belongs to the technical field of power equipment. The intelligent temporary grounding device for overhauling of the 10-kilovolt overhead line comprises a supporting plate and a first telescopic sleeve, wherein a grounding column is movably installed in the supporting plate, a fixing groove is formed in the outer side surface of the grounding column, a first fixing block is fixedly installed at one end of the connecting column, a pulley device is fixedly installed on the other side of the upper surface of the supporting plate, a second telescopic sleeve is fixedly installed on one side face of the pulley device, a second fixing block is fixedly installed at one end of the second telescopic sleeve, and a connecting rope is fixedly installed on one side surface of the first fixing block. According to the device, the overhauling efficiency is improved through moving wheels, the drilling depth can be controlled through a hydraulic telescopic rod and multiple fixing grooves, the device is suitable for different terrains and geologies, the practicability is improved, the device can rapidly fix a cable while being matched with high-voltage lines at different intervals, meanwhile, and the use is safer.

The invention relates to a fixing device for grounding of a test instrument. The fixing device comprises a device base, a device pedestal, a strong magnet and a lead mechanism. The device pedestal isarranged at the bottom of the device base; an upper half part of the device base is a solid body, and the lower half part of the device base is a hollow body; the strong magnet is arranged in the hollow body and is arranged on the device pedestal; and the lead mechanism is connected with the solid body. The device can be arranged on a metal shell of a high-voltage cabinet, a grounding wire of thetest instrument is connected to the lead mechanism, the device base and the device pedestal are attracted to the metal shell of the high-voltage cabinet through the strong magnet, connection with themetal shell of the high-voltage cabinet is achieved, and grounding of the test instrument is realized; and the device is convenient to manufacture, disassemble, assemble and carry, can be transferredalong with transfer of a test site, realizes rapid grounding of the test instrument, is time-saving and labor-saving, enables an overhaul test to be more convenient and rapid, improves overhaul efficiency, and improves safety of the test instrument and test personnel.

The invention relates to the field of agricultural instruments, in particular to a simple manual plowing tool. The simple manual plowing tool comprises front and rear wheels, axles, gears, plow shares, handles, connecting rods, foot boards and the like and is characterized in that the first support and the second support are connected in a front-back manner, the first support is sequentially connected with the limit device, the first axle and the second axle in a front-back manner, the front wheels are connected with the second axle, the axes of ratchet wrenches or one-way bearings connected to the lower ends of the handles sleeve two ends of the first axle, the first axle and the second axle are connected through gears, the second support is sequentially connected with the third support,the third axle, the fourth axle and the fourth support in a front-back manner, the lower ends of arc-shaped leaf springs are connected with the third support, the upper ends of the arc-shaped leaf springs are connected with the connecting rods, the axes of ratchet wrenches or one-way bearings connected with the rear ends of the connecting rods sleeve two ends of the third axle, the connecting rodsare connected with the foot boards, the fourth axle is connected with the rear wheels, and the third axle and the fourth axle are connected through gears. By the simple manual plowing tool powered byhuman power and the coordination of hands and feet, fast and labor-saving plowing is achieved.