Fixed cardan drive shaft's device

The utility model discloses a fixed cardan drive shaft's device, including bracing piece A, bracing piece B, bracing piece A one end be provided with the rectangle draw -in groove, bracing piece A other end fixed connection arc pole one end, arc pole other end joint support pole B, bracing piece B one end is provided with the rectangle draw -in groove, there is fixed arc pole at the arc pole withbracing piece A junction hinged joint, it is protruding to be provided with an annular in the middle part of bracing piece B, be provided with the spring between annular arch and arc pole, spring suitis on bracing piece B, the one end fixedly connected with sleeve that is close to the arc pole at the spring, the sleeve suit is on bracing piece B, it comes arc pole and fixed arc pole to adopt thespring to add the sleeve, the round bar cover of fixed arc pole is in the sleeve, the elasticity that utilizes the spring fixes on the sleeve on the arc pole always, self -locking function still has in fixed. 本实用新型公开了种固定万向节传动轴的