Miniature automatic inflation device

• Main Authors: LIU LIANGBING, ZHAO DIANHU
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention discloses a miniature automatic inflation device. The miniature automatic inflation device comprises a shell, a motor and a piston; the shell is provided with an air inlet and an air outlet, the motor is arranged in the shell and used for providing power, the piston is telescopically arranged in the shell in a reciprocating manner and is driven by the motor, and a cavity is formed between the piston and the shell, the piston is driven by an output shaft which is coaxial with the piston and driven by the motor to rotate forwards and backwards in a staggered mode to stretch and retract in a reciprocating mode, and the piston is limited by an anti-torsion structure and cannot rotate relative to the shell. According to the scheme, through forward and reverse rotation of the motor, a ball screw driving structure and a thread driving structure are combined, a rolling connection or sliding connection structure between a spiral groove and the piston is adopted, an effective implementation mode is provid