Pin shaft connecting structure with limiting and positioning functions in plane

Abstract

The pin shaft connecting structure comprises a base, a lower connecting plate, a rotating pin shaft, an upper connecting plate, a limiting pin and a main body component, the lower connecting plate comprises a clamping plate, and two arc-shaped limiting grooves are formed in the upper side rotating connecting area of the clamping plate and below a lower shaft hole in a bilateral symmetry mode. An upper connecting plate is inserted between the two clamping plates in parallel, the front side and the rear side of the upper connecting plate are each provided with two limiting pins protruding out of the surface, and the limiting pins are arranged below the upper shaft hole in the lower side rotating connecting area of the upper connecting plate in a bilateral symmetry mode; each limiting pin penetrates out of the outer surface of the corresponding arc-shaped limiting groove and slides along the groove. Two arc-shaped limiting grooves which are symmetrical left and right are additionally arranged on each lower connecting plate, the limiting pins are arranged on the upper connecting plate, and the two limiting pins and the rotating pin shaft on each side are positioned to determine a plane, so that the mounting precision of the upper connecting plate in the vertical plane is ensured.

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