Abstract: An angle-adjustable tripod universal joint which has one tripod, three rollers and one universal joint outer part. An inner wall of the universal joint outer part has three roller tracks, and one roller is disposed in each of the roller tracks and rolls along the roller track. The inner cavity of each roller has a rotatably disposed spherical shaft head of the tripod. The inner wall of each roller track has a guiding groove. The peripheral shape of each roller is cylindrical. The bottom surface of the guiding groove is a plane surface, and two side surfaces of the guiding groove are flat surfaces perpendicular to the plane surface. The peripheral surface of each roller is partially inserted into the corresponding guiding groove, and the peripheral surface of the roller is tangent to the corresponding plane surface.

Abstract: The present disclosure relates to an angle-adjustable tripod universal joint, which includes a tripod, 3 rollers and a universal joint outer part, an inner wall of the universal joint outer part is provided with 3 roller track, each roller is disposed in the roller track and rolls along the roller track, each spherical shaft head on the tripod is rotatably disposed in an inner cavity of the roller, the inner wall of the roller track is provided with a guiding groove, the peripheral shape of the roller is cylindrical, a bottom surface of the guiding groove is a plane surface, two side surfaces of the guiding groove are flat surfaces perpendicular to the plane surface, a part of the peripheral surface of the roller is inserted into the guiding groove, and the peripheral surface of the roller is tangent to the plane surface.