Telescopic pipe assembly that can be quickly locked

Abstract

A telescopic pipe assembly that can be quickly locked is provided, which includes a first pipe fitting, a second pipe fitting, and a third pipe fitting that are sequentially connected and can move relative to each other in an axial direction. The second pipe fitting is provided with a main locking mechanism that limits a relative movement between the second pipe fitting and the first pipe fitting, and a secondary locking mechanism that limits a relative movement between the second pipe fitting and the third pipe fitting. The main locking mechanism and the secondary locking mechanism are respectively connected to an interlocking mechanism. When the main locking mechanism limits the relative movement between the second pipe fitting and first pipe fitting, the interlocking mechanism causes the secondary locking mechanism to limit the relative movement between the second pipe fitting and the third pipe fitting.

Dependencies are inferred from the claim text.