Spiral tight type centre gripping formula fin that expands

• Main Authors: HE DONGKUI, CAO JIANYONG
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2016
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

The utility model discloses a spiral tight type centre gripping formula fin that expands, its characterized in that includes the aluminum alloy main part and the tight screw that expands, the aluminum alloy main part is equipped with backplate, pterygoid lamina and splint, and pterygoid lamina top -down distributed connection is at the back of backplate, splint be located the backplate openly and with the backplate parallel placement, the splint sub -unit connection has the arc, the back opposite with arc core be an arc and presses the face on the arc, it is positive that the arc presses the face to be close to the backplate, splint top edge and backplate top edge parallel and level, splint middle part and backplate be openly through being connected with the parallel shell fragment of splint top edge, and the shell fragment is by splint and backplate to middle thickness taper attenuate, on relative of shell fragment upper portion splint and the backplate respectively the distribution have a muscle in opposite