Base platform connecting piece for connecting angular displacement platform and three-jaw base connector

The invention relates to a base platform connecting piece for connecting an angular displacement platform and a three-jaw base connector, which belongs to the technical field of loading spaceborne cylindrical antenna reflecting surfaces and solves the problem that no proper connecting piece for connecting the angular displacement platform and the three-jaw base connector exists at present. The base platform connecting piece comprises a base connector connecting end, a C-shaped cylindrical shell and a platform connecting flange, wherein the base connector connecting end is composed of a circular plate and a vertical edge which is positioned on the edge of the lower side of the circular plate, the inner diameter of the vertical edge coincides with that of the three-jaw base connector, a round hole is formed in the center of the circular plate, and a notch is formed in one side of the base connector connecting end; the base connector connecting end is fixedly connected with the platform connecting flange through the C-shaped cylindrical shell, a spanner can conveniently extend into a notch of the C-shaped cylindrical shell, so as to operate a nut, the platform connecting flange is fixedly connected with the angular displacement platform through a screw, and screw holes are formed in four corners of the platform connecting flange. The base platform connecting piece is used for connection between the angular displacement platform and the three-jaw base connector.