Air flow control device

Air flow control device, characterized in that it comprises:

• a hermetic air chamber (10) arranged for being connected to an air pump (12);
• a printed circuit board (22A, 22B) that can be connected to a power source, the printed circuit board (22A, 22B) forming a surface limiting a face of the hermetic air chamber (10) and having at least one hole (26);
• at least one solenoid valve (14) connected on the printed circuit board (22A, 22B) each of the at least one solenoid valve (14) covering one of the at least one hole (26), wherein each solenoid valve (14) comprises:
• a casing (28);
• an outer coil (30);
• a fixed inner metal cylinder (32);
• a nozzle (18) for connecting the inside of the solenoid valve (14) with an inflatable object (20);
• and
• a rod (16) being able to move inside the inner metal cylinder (32) between an extended position for blocking the corresponding hole (26) and a contracted position in which communication between the inside of the solenoid valve (14) and the air chamber (10) through the corresponding hole (26) is allowed;
• such that the rod (16) is moved between the extended and contracted positions by means of the application of a differential voltage on the coil (30) through the printed circuit board (22A, 22B), thereby controlling the air flow between the air pump (12) and the inflatable object (20).