Tire mounting component and device, and tire mounting/dismounting device

A tire mounting component, comprising a main body with a flat top and rounded sides and a pressing wheel capable of pressing down the tire, wherein the pressing wheel is arranged on one side of the flat main body;

• a protective member is arranged on the one side of the main body, the protective member is at least partially located above the pressing wheel, wherein the top of the protective member has an arc-shaped surface and one end of the protective member that is closest to the main body has a greater dimension in a direction extending away from the pressing wheel than the other end of the protective member that is furthest away from the main body and slopes downward from on end to the other end;
• the protective member prevents the inner edge of the tire from coming into contact with the at least a portion of the top surface of the pressing wheel based on the inner edge of the tire sliding along the arc-shaped top of the protective member;
• a guide member positioned on top of the main body;
• and
• a reinforcing rib extending upwardly from the top of the main body, wherein the reinforcing rib extends from the guide member to the protective member, wherein the upper surface of the guide member and the reinforcing rib includes an surface that slants downward toward the pressing wheel.