Folding bicycle rack with automatic wheel fixing

A folding bicycle rack with automatic wheel fixing, comprising:

• a wall-mounting structure;
• a bottom frame;
• and
• an adjustable positioning assembly;
• wherein the wall-mounting structure is vertically fixed on a wall;
• an end of the bottom frame is in a restricted rotational connection with a lower end of the wall-mounting structure;
• the bottom frame is provided with a wheel-receiving groove;
• and a bottom surface of the wheel-receiving groove is provided with a through hole for embedding a tire;
• the adjustable positioning assembly comprises a positioning member and a tilted structure;
• the positioning member is arranged at a side in the wheel-receiving groove close to the wall, and is fixedly arranged when in use;
• the tilted structure is arranged at a side in the wheel-receiving groove away from the wall, and is in a restricted rotational connection with an end of the bottom frame away from the wall;
• and the positioning member and the tilted structure are configured to abut against the tire respectively from the front and rear to support the tire and limit downward movement of the tire.