36results about How to "Quick maintenance work" patented technology

The invention provides a light apparatus of a luminous component and the main light source is light-extinguished, in order to prevent influence of the main light source and surrounding circuits thereof when main light source abnormality detection unit detects abnormality of main light source, thereby raising security, reliability, and users' and maintenance personnel's use convenience. The lamp apparatus has a main light-source unit lightened and supplied by a first power-supply unit, a constant current control unit that supplies constant current to light emitting elements (LED-1-LED-n). Main-control unit controls lighting of main light source for specific time period, when electric power which restarts the main light source is supplied.

The invention relates to an electric appliance maintenance method and a system, wherein the method comprises the following steps: when receiving a fault alarm information sent by the electric appliance, sending an inquiry instruction whether the maintenance is required to be reserved to a user terminal; when receiving the confirmation instruction sent by the user terminal, outputting an interactive interface for the user to select and / or input corresponding maintenance information to the user terminal; generating maintenance job; the fault type is determined according to the fault alarm information, and the historical maintenance record is queried according to the fault type. If the query is successful, the maintenance work order and the historical repair record will be sent to the maintenance personnel; otherwise, the maintenance work order will be sent to the maintenance personnel directly. The invention can accurately judge the fault type, It is convenient for the repairman to carryout thorough repair preparation work before door-to-door maintenance. Combined with the repair process information provided in the historical repair records, it can provide the repairman with reference to solve the fault, make up for the lack of experience of the repairman, and facilitate the repairman to carry out the maintenance work quickly.

The invention relates to a method for rapidly detecting on-off and positioning of an optical cable. At least one first intelligent service disc in a first intelligent sub-frame unit of first intelligent wiring equipment is provided with a first intelligent optical path detection disc formed by an intelligent optical transceiver module and an optical path processing module; a second intelligent optical path detection disc formed by the intelligent optical transceiver module and the optical path processing module is arranged in at least one second intelligent service disc in a second intelligentsub-frame unit of second intelligent wiring equipment; an optical cable is connected to the corresponding first intelligent optical path detection disc and the second intelligent optical path detection disc to establish communication optical paths; an one-core optical fiber in the same optical path cable serves as a detection optical fiber used for establishing a detection optical path; a networkmanagement control unit is in interactive communication and management with the first intelligent wiring equipment and the second intelligent wiring equipment; the network management control unit isstarted for real-time detection, an optical signal of the detection optical fiber is detected and the optical path with the cable on-off fault is positioned. According to the method, rapid detection and positioning of on-off of the optical cable between equipment nodes can be realized, the maintenance operation can be rapidly carried out, and the maintenance cost is reduced.

The invention relates to the field of obstacle clearing equipment, and discloses an obstacle clearing device which comprises a first obstacle clearing belt and a second obstacle clearing belt. A firstreel for winding the first obstacle clearing belt is arranged at one end of the first obstacle clearing belt, and a second reel for winding the first obstacle clearing belt is arranged at the other end of the first obstacle clearing belt; a third reel used for winding the second obstacle clearing belt is arranged at one end of the second obstacle clearing belt, a fourth reel used for winding thesecond obstacle clearing belt is arranged at the other end of the second obstacle clearing belt, and the second obstacle clearing belt and the first obstacle clearing belt are arranged side by side atintervals when unfolded. In the case of roadblock clearing, roadblocks around the power distribution cabinet are distributed on the side, back to the second obstacle clearing belt, of the bent firstobstacle clearing belt and the side, back to the first obstacle clearing belt, of the bent second obstacle clearing belt respectively. When the second obstacle clearing belt and the first obstacle clearing belt are wound, the second obstacle clearing belt and the first obstacle clearing belt can push the roadblock to be cleared through tensioning force generated by winding, operation is easy and convenient, the structure is simple, and the design cost is low.

The invention discloses a fireproof and dustproof device of a steel rail grinding trolley. The fireproof and dustproof device comprises a middle baffle, cover plates, trolley doors, a dust collectingcurtain, end baffles and a fireproof curtain. The cover plates are arranged on the left side and the right side of the dust collecting curtain in the operation direction of the grinding trolley and installed on a frame of the grinding trolley. One side of the dust collecting curtain is connected to the bottom of the grinding trolley body, and the opposite side is connected with the cover plate. The trolley doors are arranged on the left side and the right side of the grinding trolley in the operation direction and hinged to the cover plates. The middle baffle is connected to the lower portionof the frame in a suspended mode, and the end baffles are arranged at the front end and the rear end of the grinding trolley in the operation direction and installed on the frame. The lower portions of the end baffles and the lower portions of the trolley doors are connected with fireproof curtains. The fireproof and dustproof device can solve the technical problems that an existing fireproof anddustproof device of the steel rail grinding trolley adopts a rigid connection structure, space utilization is inconvenient, maintenance is difficult, and potential safety hazards exist.

The invention discloses a wire connector, which comprises a connector body, a locking block provided on the connector body, and a locking device for detachably connecting the connector body and the locking block. There is a concave-convex crimping structure, and correspondingly, one surface of the locking block is provided with a matching concave-convex crimping structure, and at least one of the connector body and the locking block is provided with a groove for preventing the wire from sliding laterally. limit structure. The wire connector has simple structure, good wire clamping effect, good tension bearing capacity, good electrical performance, convenient connection and installation, flexible disassembly, strong versatility, self-locking and easy unlocking, and can realize safe and stable connection.

The invention relates to the field of obstacle clearance equipment, and discloses an obstacle clearance device, which comprises a first obstacle clearance belt and a second obstacle clearance belt. One end of the first cleaning belt is provided with a first reel for winding the first cleaning belt, and the other end of the first cleaning belt is provided with a second reel for winding the first cleaning belt; One end of the barrier belt is provided with a third reel for winding the second barrier belt, and the other end of the second barrier belt is provided with a fourth reel for winding the second barrier belt. When the first clearing belts are unfolded, they are arranged side by side and spaced apart. When clearing roadblocks, the roadblocks around the power distribution cabinet are respectively distributed on the side of the curved first clearing belt facing away from the second clearing belt and the curved second clearing belt facing away from the first clearing belt. When the second and first clearing belts are wound, the second clearing belt and the first clearing belt can be driven to clear the roadblocks by the tension generated by the winding, the operation is simple and convenient, and the structure Simple and low design cost.

The invention discloses a structure of a pressure self-sealing anti-leakage gate valve, which comprises a valve body. The middle of the valve body is a valve chamber, and the valve body is provided with rear valve seats and The front valve seat, and a sliding sleeve is arranged between the rear valve seat and the front valve seat; the upper and lower ends of the valve body are respectively fixed with an upper flange and a lower flange, and the upper flange An upper sheath is fixedly arranged above, and a lower sheath is fixedly arranged below the lower flange; the valve body is provided with a gate in the valve chamber. Both the inlet and the outlet of the valve body of the present invention adopt a double valve seat structure, and a sliding sleeve is arranged between the front and rear valve seats. Poor, realize pressure self-tightening, achieve the purpose of preventing internal leakage and ensuring sealing; and adopt balanced sliding sleeve structure, easy to disassemble and assemble, making maintenance work faster.

The invention relates to the technical field of dry quenching of coke, specifically to a special trolley used as a mobile coke pot maintenance station for maintenance of a rotary coke pot. The specialtrolley is composed of trolley wheel sets, a trolley frame, guiding fixed supports, coke pot bases and coke pot spreader bases, and becomes a coke pot maintenance station which utilizes a dry-quenched coke lifting machine to take and deliver the rotary coke pot and can move on the rails of a transfer platform and a lifting machine headframe. The trolley frame steel frame structure resembling a shoe-shaped silver ingot; the central part of the trolley frame is concave; two ends of the trolley frame respectively have a platform structure. The trolley wheel sets are respectively arranged on thelower parts of the platforms located at two ends of the trolley frame. The guiding fixed supports, the coke pot spreader bases and the coke pot bases are successively and symmetrically arranged on theupper parts of the platforms located at two ends of the trolley frame from exterior to interior. The special trolley provided by the invention realizes safe, convenient and rapid coke pot maintenanceoperation, can greatly reduce the labor intensity of maintenance personnel, successfully solves the current embarrassing situation that a ground coke pot maintenance station needs a large-tonnage crane with 300 tons or above for coke pot maintenance operation, and saves a large amount of coke pot maintenance cost.

The invention relates to the mechanical field, especially to a plug-in type quick joint which solves the problem that a wire outlet joint of a transformer in the prior art can not be easily detached during an on-site maintenance process. The plug-in type quick joint mainly comprises an inner connector, an outer connector and a lock-type packaging sleeve, wherein the inside of the inner connector is coated with conductive material, the lower end of the inner connector is fixed to a terminal of the transformer, the inside of an upper connector is provided with threads to fasten the internal wirings and prevent slipping of the internal wirings, the external of the lock-type packaging sleeve is of a hexagonal nut shape, and the lock-type packaging sleeve has internal threads used in conjunction with a lower connector. The upper and lower connectors are connected together, and the lock-type packaging sleeve sleeves outside to make the upper and lower connector a whole. Reliable connection is realized. The plug-in type quick joint is mainly used for a wire outlet joint of a transformer.

The invention discloses a wire connector. The wire connector comprises connector bodies each provided with at least one accommodation cavity, locking blocks arranged to be corresponding to the accommodation cavities, and locking devices for detachable connection with the connector bodies and the locking blocks. The locking blocks are assembled in the corresponding accommodation cavities; one surface of each accommodation cavity is provided with a concave-convex pressing line structure, correspondingly, one surface of each locking block is provided with a matched concave-convex pressing line structure, the two ends of each connector body are each provided with a wire hole, and the wire holes penetrates through adjacent accommodation cavities. The wire connector provided by the invention has the advantages of simple structure, good electrical property, excellent tension bearing capability, convenient connection installation, flexible dismounting, high versatility, capability of self-locking, convenient unlocking and safe and stable connection.

The present invention relates to a method for changing the number of a main station based on frequent changes of the station number of distribution automation. Its technical features include the following steps: Step 1. Check the pre-remote signal definition table to determine the pre-remote signal definition table of the master station Whether there is data in; Step 2. After confirming that the main station has been transformed, check whether the data information in the pre-remote signal definition table contains the sub-station information; Step 3. Replace the original station number in the protection name with the new station number; Step 4. Change the name of the switch, change the combined device domain to the new refresh station number modified in the SCADA / outside equipment / switch station table in step 2, and change the feeder domain to which it belongs according to the layout of the distribution network; step 5, enter fes / channel table and fes / Distribution network communication terminal table, change the channel name and terminal name according to the new refresh station number. The invention can ensure that the system accurately presents various information to the dispatching staff, helping them to accurately analyze the state of the power grid.

The invention relates to a stirrer for concrete, comprising a rectangular stirring cylinder which is provided with one or a plurality of stirring shafts inside, the rotation of each of which is driven by a corresponding engine located out of the stirring cylinder; the engine system is composed by connecting an electromotor, a gear electromotor with an intermediate gear connected to the top of the corresponding stirring shaft via necessary connection components; the invention has the characteristic that the electromotors and the corresponding gear electromotor of each engine system are all fixed on the same support framework, the framework is hung at the side of the stirring cylinder via one or a plurality of hinges; the stirrer for concrete has the characteristics of simple and fast maintenance and repairing.