Wheel and suspension bracket device thereof

The invention relates to a suspension bracket device adapted with an automobile-used wheel. The wheel comprises a tire and an outer tire rim matched with the tire, and further comprises an inner tire rim, and a bearing arranged between the outer tire rim and the inner tire rim, wherein the tire is a solid tire; the inner tire rim adopts a hollow ring-shaped structure; and due to the hollow inner tire rim and the solid tire, the rotational inertia of the wheel can be improved under the premise that safe driving is guaranteed, which provides convenience for saving power. The suspension bracket matched with the wheel adopts the structure that a front suspension assembly is arranged at the front end of an automobile frame and comprises a support cantilever extending forwards in a suspended manner from two sides at the front end of the automobile frame main body; the suspended end of the support cantilever is hinged with the middle section of a steering cantilever; the front end of the steering cantilever is connected with the inner tire rim of the wheel; and the rear end of the steering cantilever is connected with a steering assembly. Therefore, the structures of the automobile frame and the suspension bracket are simplified; difficulty in manufacturing the automobile frame and the suspension bracket is reduced; and the stability in steering of an automobile is effectively guaranteed.