Non-standard container extension device

The utility model discloses a non-standard container extension device which comprises a container body, a plurality of fixing blocks are evenly and fixedly arranged on the surface of the outer side of the upper end of the container body, guardrails are movably arranged in the middles of the inner sides of the fixing blocks through rotating shafts, and connecting blocks are movably arranged at the ends, away from the fixing blocks, of the guardrails through rotating shafts. A transverse rod is fixedly arranged at the upper end of the connecting block, clamping mechanisms are arranged on the two sides of the transverse rod, each clamping mechanism comprises a buckle, a limiting block and a plug pin, the buckles are fixedly arranged at the two ends of the surface of the transverse rod, the limiting blocks are fixedly arranged on the surfaces of the outer sides of the guardrails, and the plug pins are movably arranged in the buckles and the limiting blocks in a penetrating mode. And a clamping mechanism is arrang