Telescopic suction tube comprises upper or outer tubular part and lower or inner tubular part which can slide in outer part

摘要

The telescopic suction tube comprises an upper or outer tubular part (1) and a lower or inner tubular part (2) which can slide in the outer part. Two opposing hooks (3) are arranged in the inner surface of the outer part to hold the two parts in an outwardly drawn position, so that in one operation they can be drawn apart.