Basket rear supporting leg heightening construction device

The utility model provides a heightening construction device for a rear supporting leg of a hanging basket. A rear supporting leg of the hanging basket is formed by assembling an ejector rod, a firstheightening rod, a second heightening rod and a base rod. Every two adjacent rod pieces are connected end to end in a socket and spigot joint mode, the length of the first heightening rod and the length of the second heightening rod are both 2.6 m, matched adjusting holes are formed in each rod piece in the rod length direction at intervals of 20 cm, and every two adjacent rod pieces are fastenedbetween at least two pairs of adjusting holes through bolts. Diagonal bridging is carried out between the tops and the bottoms of the rear supporting legs of every two adjacent hanging baskets, and atransverse support is arranged between the tops; a cantilever of the hanging basket is erected on the upper edge of a parapet wall through self weight, the erecting position serves as a hanging basketfront support erecting poin