Angle device is prevented weighing down by cubical switchboard door

The utility model discloses an angle device is prevented weighing down by cubical switchboard door, including hollow gyro wheel, support A, support B and pass the axle of hollow gyro wheel, the length of axle is greater than the width of hollow gyro wheel, support A is L type support, and the transverse dimension that the face was indulged to support A's the face of indulging fixed connection an in terminal surface of axle, support A is greater than the diameter of the inner circle of hollow gyro wheel, and vertical size that support A indulged the face is greater than the outer radius of circle of hollow gyro wheel, is provided with two bolt holes on support A's the plane of structure, support B is L type support, and the transverse dimension that the face was indulged to the face of indulging fixed connection in another terminal surface of axle of support B, support B is greater than the diameter of the inner circle of hollow gyro wheel, and vertical size that support B indulged the face is greater than the