Patent ID: 11858015
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B  E | IPC B  E

Claim 1:
2. The auto-feed pipe cleaner as claimed in claim 1, wherein an outer periphery of the flange tube of the front cover comprises a plurality of convex strips disposed at intervals, and a round convex portion is provided at the extension direction that the front cover connected with the flange tube, and the front cover comprises a plurality of locking holes and a plurality of protruding rods disposed at intervals on an inner periphery of the first opening, and wherein the rear cover comprises a plurality of fixing rods and a plurality of sleeve rods disposed at intervals on an inner periphery of the second opening, the plurality of fixing rods are inserted by a plurality of screws to be locked with the plurality of locking holes, and the plurality of protruding rods are correspondingly connected with the plurality of sleeve rods, and a concave portion is provided at a side opposite to the second opening of the rear cover, and the concave portion is provided with a convex rim with an inverted convex hole at a side that the second opening is located, and a plurality of convex dots are disposed at intervals on an outer periphery of the convex rim, the small handle is provided with a convex connecting rod, and a hollow cylinder is embedded with one end of the convex connecting rod and is sleeved on the convex connecting rod.