Safety frame for construction site of constructional engineering

The utility model is applicable to the technical field of engineering construction, and provides a safety frame for a building engineering construction site, which comprises a first support rod and a second support rod, a plurality of first connecting rods are arranged between the first support rod and the second support rod, and the upper ends of the first support rod and the second support rod are connected with a top plate. A telescopic mechanism is arranged between the first supporting rod and the second supporting rod; and the telescopic mechanism comprises a fixed rod, a telescopic rod, a second connecting rod, a rotating block, a moving rod and a clamping block. According to the safety frame for the building engineering construction site, the situation that the safety frame needs to be assembled by multiple persons is avoided by arranging the telescopic mechanism, the two connecting blocks at the other end of the first supporting rod release the clamping state of the other telescopic rod, and the safet