Portable lifting device

The utility model discloses a portable lifting device, the load simulator comprises a case, the derrick kingpost, hoisting machine tool arm, the hoisting mechanism, wherein, the machine incasement is provided with winding motor and battery, the lower extreme pivotal installation of derrick kingpost is on quick -witted case, the upper portion at the derrick kingpost is installed to hoisting machine tool arm, be provided with a plurality of leading wheel on the tip of hoisting machine tool arm and derrick kingpost, wire rope one end in the hoisting mechanism is connected on winding motor, wire rope derives from the tip of hoisting machine tool arm through each leading wheel direction back, its other end is connected with the lifting hook, winding motor works behind the storage battery power supply, will drive the lifting hook up -and -down motion through wire rope, hoists the heavy object. The utility model discloses convenient little article lifts by crane, does not receive the influence of fixed power, environment, topography, homoenergetic convenient and fast's the article that lifts by crane one type on various switch boxs or tower pole. Shortening operating time, improving work efficiency, reduce manpower machinery input, reduction in production cost has improved economic benefits.