2results about How to "Smooth overhaul" patented technology

A lifting device for aircraft engine maintenance belongs to the field of aircraft maintenance equipment and comprises a base and an adjusting platform, a magnetic lifting assembly is fixedly arranged in the middle of the base, the top end of the magnetic lifting assembly is detachably connected with the adjusting platform, and a plurality of positioning supports are mounted on the adjusting platform; the magnetic attraction lifting assembly comprises a first lifting unit fixedly arranged on the base, a first magnetic attraction unit is fixedly installed at the top end of the first lifting unit and used for being fixed to the bottom of the adjusting platform in a magnetic attraction mode, the height of the adjusting platform can be controlled through the first lifting unit, and the height of the adjusting platform can be adjusted through the arrangement of the first magnetic attraction unit. The base and the adjusting platform are rapidly disassembled and assembled, the aircraft engine can be hoisted to the adjusting platform in advance, the modular replacement effect is achieved, the overhaul and maintenance time is greatly shortened, and the working efficiency is improved.

The utility model relates to electrical switchgear field especially relates to a switchgear cabinet grounding interlock device, including interlock buckle, interlock shaft and from top to bottom interlock plate, interlock middle plate and interlock mounting plate are set horizontally in proper order, the quantity of structure spare parts of this patent is less, and the structure is relatively simple, can realize the quick installation and maintenance of this structure, when the ring main unit switchgear equipment is in operation or circuit failure, through the grounding state of equipment as trigger condition, when the line normal live operation, this structure will cabinet door be fixed in the locking state, avoid opening cabinet door, when the line failure power-off maintenance, this structure removes the locking of cable room door, at this moment can open cabinet door, carries out the maintenance to the line, ensures the safety of operator, and follows electrical safety regulation, improves the safety and reliability of switchgear operation effectively simultaneously, provides solid safeguard for the stable operation of power system.