Portable hoisting accessory for building engineering

The utility model relates to a hoisting accessory, concretely relates to portable hoisting accessory for building engineering, including first box, be equipped with the couple on the first box, firstbox top is equipped with and gets in touch the complex recess, be equipped with first through -hole on the first box lateral wall, be equipped with the bracing piece in the first through -hole, be equipped with pivot and cell body on the bracing piece, the inner wall of cell body passes through the spring and links to each other with the horizontal pole, be equipped with the gyro wheel on the horizontal pole, first box is equipped with the second box, the second bottom half is equipped with first slider, be equipped with on the first box inner wall with the first spout of first slider complex,be equipped with the three -box body in the second box, three -box body bottom is equipped with second through -hole and second slider, the utility model provides a box volume that technical scheme can effectively compensate