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

Claim 9:
10. The auto-feed pipe cleaner as claimed in claim 9, wherein the clutch device comprises a first sleeve, a second sleeve, a central shaft, a compression spring, a first gasket, a second gasket, and a fixing plate, the first sleeve is provided with a cover abutting on the concave portion of the rear cover, and an inside of the cover extends outward to form an outer cylinder with a third opening, and the inside of the cover is provided with a screw hole communicating with the third opening, a chamber is formed from inside the outer cylinder for sleeving the compression spring, a bottom of the chamber is abutted by the first gasket and an end of the compression spring, the second sleeve is provided with a convex cover embedded and positioned in the inverted convex hole of the convex rim, and a convex cover rod on the convex cover for sleeving with the compression spring, a shaft hole is disposed inside the convex cover and the convex cover rod, the convex cover includes a plurality of embedding grooves adjacent to the shaft hole, and a plurality of holes are located on an outer periphery of the convex cover for the convex dots of the concave portion to tenon, an external screw thread is provided at one end of the convex cover rod to screw joint with the screw hole of the cover, the central shaft is provided with a disc surface with a hexagon head, and a shaft is located at one side of the disc surface opposite to the hexagon head, and the shaft protrudes from the convex cover rod, the disc surface is provided with a plurality of convex embedding parts adjacent to the shaft and corresponding to one side of the second sleeve for embedding with or detaching from the plurality of embedding grooves, and a plurality of abutting convex dots disposed between the plurality of convex embedding parts to abut against the convex cover, the first gasket includes a first inner hole, the second gasket includes a second inner hole, and the fixing plate includes a third inner hole, and wherein the external screw thread of the convex cover rod is inserted into the first inner hole, and one end of the shaft opposite to the hexagon head is inserted into the second inner hole of the second gasket and protruded out from the third inner hole of the fixing plate, and the fixing plate is fixed on the second gasket together with the shaft, the second gasket and the fixing plate into one body, thereby the shaft is capable of moving forward and backward in the chamber of the outer cylinder through an action of the compression spring.