10results about How to "Avoid flashover" patented technology

The invention discloses an insulator protection device, which relates to the technical field of insulators. Dirt such as bird droppings causes the insulator's withstand voltage strength to decrease, resulting in flashover damage. The invention includes an insulator mechanism, an insulator string protection mechanism and an adjustment mechanism, wherein the insulator mechanism includes a support column and an insulator; the insulator string protection mechanism includes a card plate, a connecting rod is fixedly installed between two card plates, and a wind collecting plate clamped between the two card plates, a connecting plate is sleeved on the outside of the connecting rod, and a scraper one and a scraper two matching the insulator are fixed at one end of the connecting plate; the buffer assembly includes a sleeve; the adjustment mechanism includes a transmission plate slidably installed on the wind collecting plate, a guide rail matching the connecting plate is provided on the transmission plate, the transmission plate slides to adjust the distance between a plurality of connecting plates and simultaneously realizes the equidistant adjustment between a plurality of insulators, the wind collecting plate is rotated by wind force, so that the two scrapers rotate around the insulator, thereby limiting the insulator and cleaning its surface at the same time, thereby realizing the protection of the insulator.

The invention discloses a low-smoke-density high-temperature-resistant halogen-free special flame-retardant optical cable, which comprises a cable core, an inner sheath and a fireproof layer from inside to outside, and is characterized in that the fireproof layer comprises a fireproof layer made of a ceramic silicone rubber material; the cable core comprises optical fibers, a loose tube, a reinforcing piece and an internal flame-retardant thermal insulation layer, the reinforcing piece is located in the center of the cable core, the optical fibers are arranged in the loose tube to form an optical fiber unit and surround the reinforcing piece, the internal flame-retardant thermal insulation layer comprises water-blocking yarn and a calcined mica tape, and the space between the optical fiber unit and the reinforcing piece is filled with the water-blocking yarn. And the optical fiber units, the reinforcers and the water-blocking yarns are wound by the calcined mica tape in a multi-layer and multi-pitch manner. According to the invention, the ceramic silicone rubber material is adopted and is ceramized in a flame state or at a high temperature of more than 500 DEG C to form an oxygen barrier layer, so that a flashover phenomenon in the cable is prevented; ointment is removed from the structure, and the water-blocking yarn and the calcined mica tape are used for blocking water, so that smoke in the combustion process is reduced, and the harm to personnel is less under the condition of fire hazard.

The utility model relates to an anti-flashover forcible entry water gun which comprises a connecting base, a transmission shaft and a driving assembly, the two sides of the connecting base are connected with grips, the transmission shaft is rotatably installed in the connecting base, one end of the transmission shaft is connected with the driving assembly, the other end of the transmission shaft is connected with a drill rod, and the drill rod is connected with a hydraulic cylinder. The end, away from the transmission shaft, of the drill rod is detachably connected with a drill bit, a water inlet cavity is formed in the transmission shaft, a water inlet hole is formed in the end, close to the water inlet cavity, of the connecting base, and a plurality of water outlet holes are formed in the end, close to the drill bit, of the drill rod. The device has the beneficial effects that the operation is convenient, quick forcible entry can be realized, efficient fire extinguishing and cooling can be realized during forcible entry, and the safety is good.

The invention discloses a filament winding and welding machine, and relates to the technical field of wire welding equipment, the filament winding and welding machine comprises a wire stripping mechanism, a welding mechanism and a feeding mechanism, the welding mechanism comprises a wire winding assembly, a wire winding clamping jaw in the wire winding assembly is composed of a pneumatic element, a clamping jaw piece, a reset spring and a fixing seat, and the clamping jaw piece comprises a first clamping block with a positioning shaft shoulder and a second clamping block with a positioning shaft shoulder; the wire welding assembly comprises a wire welding arm and a wire releasing arm, a spot welding gun and an ignition rod are arranged on the wire welding arm, a ceramic base with a through hole is arranged at the end of the wire releasing arm, and a ceramic ring in the through hole is in an unclosed circular ring shape so that a filament can penetrate through the ceramic ring conveniently. The wire winding driving assembly adopts an electric sliding table, the wire loosening arm is in sliding connection with the wire welding arm through a sliding rail, the wire stripping mechanism comprises a wire stripper, the wire stripper is provided with a wiring seat, a wire extruding plate, a wire extruding wheel, a wire stripping knife and a plurality of auxiliary parts, and precise machining and efficient welding of thin wires are ensured. The thin wire welding device achieves the technical effects of improving the firmness degree of thin wire welding and ensuring the quality of the welding wire.

The utility model relates to a maintenance-free high-voltage line anti-pollution flashover insulating bird-proof cover. A shell of the bird-proof cover is composed of an upper shell and a lower shell which are made of an arc-shaped insulating material; two ends of the lower shell and the upper shell are fixedly connected with high-voltage lines, and one end, positioned in the shell, of each high-voltage line is fixedly connected with an insulator; the upper shell is composed of a first connecting shell and a second connecting shell, and the adjacent parts of the first connecting shell and the second connecting shell are respectively provided with an insertion strip and an insertion groove which are matched with each other; a turnover mechanism is arranged between the lower shell and the upper shell and drives the first connecting shell and the second connecting shell to be opened and closed; a pressure sensor is arranged on the lower surface of the adjacent position of the first connecting shell and the second connecting shell, and the pressure sensor and the turnover mechanism are both electrically connected with the control system. According to the utility model, by arranging the turnover mechanism, flashover caused by birds and insects inhabiting on the insulator is effectively avoided, birds staying on the insulator can be conveniently repelled, the device is convenient to use, and the service life of the whole device is prolonged.

The utility model discloses a kind of heating furnace door operating devices for bar, belong to bar production technical field, including the bracket trolley being set on track, bracket trolley is provided with furnace door body, bracket trolley is connected with driving component, furnace door body and bracket trolley are moved along horizontal direction on track under the driving of driving component, realize to open and close to furnace mouth;Bracket trolley includes bracket bottom plate and the roller being set on the end surface of bracket bottom plate, roller is cooperatively arranged in track, and positioning hole is arranged on the bracket bottom plate of furnace door body installation position;The lower end of furnace door body is provided with connecting component, and furnace door body is detachably connected with bracket bottom plate by the cooperation of connecting component and positioning hole.The utility model solves the safety hidden danger existing in person caused by the maintenance personnel of existing maintenance furnace door connecting iron chain, avoids the emergence of the fire out phenomenon caused by the fact that furnace mouth is not covered by furnace door cover after being scraped by steel billet, and reduces energy loss problem.

The invention provides a transformer substation insulator, and relates to the technical field of insulators, the transformer substation insulator comprises a first fixing plate, a first connecting pin is rotatably connected in the first fixing plate, a suspension ring is sleeved in the first connecting pin, one end of the suspension ring is fixedly connected with an insulator body, and one end of the insulator body is fixedly connected with a connecting cap. When a plurality of insulator bodies are connected, a rotating handle is screwed, the rotating handle drives a rotating disc to rotate through a round rod, and in the rotating process of the rotating disc, a first sliding rod slides in an arc-shaped groove to drive a clamping block to slide outwards; the clamping block can be driven to slide for limiting and fixing only by screwing the rotating handle, the operation is simple and convenient, no extra tool needs to be carried during high-altitude operation, the working efficiency is improved, the risk of operators during high-altitude operation is reduced, the connection convenience of the insulator body is improved, and replacement and maintenance work is facilitated.

The utility model relates to power equipment technical field, concretely relates to a kind of anti-flashover insulator, including insulator body, insulator body is composed of outer insulating sleeve and the core rod of being arranged in outer insulating sleeve, the inside of core rod is provided with metal shielding strip along the core rod height direction setting, umbrella skirt is integrally formed on the outer surface of outer insulating sleeve, umbrella skirt is alternately arranged and is composed of multiple big umbrella skirts and multiple small umbrella skirts, the top surface of big umbrella skirt and small umbrella skirt is all provided with second slope, the surface of second slope is provided with super-hydrophobic coating, the edge portion of big umbrella skirt and small umbrella skirt is provided with multiple ring-like equidistant arrangement tooth tip, recess is arranged between two tooth tips adjacent to each other.The utility model has good anti-flashover protection effect, and it is beneficial to the stable operation of system.

The application relates to a fine wire winding and welding machine, and relates to the technical field of wire welding equipment. The fine wire winding and welding machine comprises a wire stripping mechanism, a welding mechanism and a feeding mechanism. The welding mechanism comprises a wire winding assembly. The wire winding clamp in the wire winding assembly is composed of a pneumatic element, a clamp piece, a return spring and a fixing seat. The clamp piece comprises a first clamp block and a second clamp block which are provided with positioning shaft shoulders. The welding mechanism comprises a wire welding arm and a wire stripping arm. A spot welding gun and a striking rod are arranged on the wire welding arm. The end of the wire stripping arm is provided with a ceramic seat with a through hole. The ceramic ring in the through hole is in the form of an open ring, so that the fine wire can pass through the ceramic ring conveniently. The wire winding driving assembly adopts an electric sliding table. The wire stripping arm and the wire welding arm are slidably connected through sliding rails. The wire stripping mechanism comprises a wire stripper which is provided with a wire running seat, a wire extruding plate, a wire extruding wheel, a wire stripping knife and a plurality of auxiliary components, so that the fine wire can be processed accurately and welded efficiently. The application can improve the firmness of fine wire welding and ensure the quality of wire welding.

The invention belongs to the technical field of insulators, particularly relates to an anti-thunder porcelain insulator and a use method thereof, and aims to solve the problems that the outer wall of the bottom of the insulator cannot be effectively contacted with rainwater, so that the insulator cannot be self-cleaned by the rainwater, dirt is accumulated on the surface of the insulator, and the insulator cannot be cleaned in time before thunderstorm days. In order to solve the problem that the lightning protection effect is affected by flashover discharge on the surface caused by smudginess in thunderstorm days, according to the scheme, the lightning protection device comprises a mounting base, a round hole and four positioning openings are formed in the top of the mounting base, and a steel foot screw rod is arranged in the round hole. According to the lightning protection porcelain insulator and the use method thereof disclosed by the invention, the lightning protection effect of the porcelain insulator in use can be improved, and the device can clean dirt on the surface of the porcelain insulator through wind power when thunderstorm days come, so that flashover phenomenon of the surface of the porcelain insulator due to the dirt can be avoided when the porcelain insulator is used; and the use effect of the device is improved.