Finger pipe expander

• Main Author: ZHAO JIGUO
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2014
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The utility model discloses a finger pipe expander. The expander comprises a circular or elliptical body, an expanding rod and a movable rod, wherein the body is provided with a movable slot which leads to the center of circle; the movable rod is arranged in the movable slot; the tail end at one end of the center of circle is fixedly provided with the expanding rod which is perpendicular to the movable rod; the bottom of the movable rod is provided with a tooth-shaped groove; a rotary disc is also arranged in the body; the surface of the rotary disc is provided with a threaded spiral groove; the spiral groove is just matched with the tooth-shaped groove; the side face of the rotary disc is provided with a gear-shaped rotary gear; the side face of the body is provided with a rotating handle; the rotating handle is arranged in the body, and the tail end of the rotating handle is provided with a linkage gear; the linkage gear is perpendicular to the rotary gear and is arranged in a way that the linkage gear is j