Patent ID: 8677595

Claim:
A method of making retractable pipe, characterized in that it comprises the following steps: (1) preparing a pipe body which comprises an outer pipe and an inner pipe; providing a handle seat and a handle button on the outer pipe; providing a handle actuation means inside the handle seat; providing a push rod assembly, a locking block, a sliding block and a reset spring at the handle actuation means; encasing a flange of the sliding block by the reset spring; clutching a front portion of the push rod assembly inside a groove of the sliding block; supporting a rear portion of the push rod assembly at the handle seat; providing a locking tongue on the locking block; and the sliding block and the locking block securely contact and coordinate with each other via two surfaces; (2) providing a guiding groove and several identical locking troughs on an axial surface of the inner pipe, and arranging in a row the several identical locking troughs on the axial surface of the inner pipe; (3) providing a fixing sleeve inside the handle seat with the fixing sleeve encasing the inner pipe; providing raised guiding rails on inner sides of the fixing sleeve; the raised guiding rails on the fixing sleeve are slidably inserted in the guiding groove; the sliding block forces the locking tongue on the locking block to fit into the locking trough so that the retractable pipe is in a locked condition.