Adjustable pressure inflating device

• Main Authors: WEN AI, HANLIE XU, SHENGHAO JIN
• Format: Patent
• Language: English
• Published: 13.10.2004
• Edition: 7
• Subjects: BEDS; BLASTING; CHAIRS; COFFEE MILLS; DOMESTIC ARTICLES OR APPLIANCES; FURNITURE; HEATING; HUMAN NECESSITIES; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SOFAS; SPICE MILLS; SUCTION CLEANERS IN GENERAL; WEAPONS

The utility model discloses an inflation device which can adjust the air pressure; the utility model includes a fan which is provided with a corrected L-shaped air inlet and outlet passage. The fan is provided with an air inlet and an air outlet; the air outlet end is internally provided with a valve; a fan shell is provided with an external thread; the fan is also provided with an inflation and an air discharging button controller which is linearly controlled and an electromagnet device which can push the valve to open; a support sleeve which can be movably sleeved in the fan is fixedly connected with an inflation object; the support sleeve is provided with an internal thread which is matched with the external thread of the fan shell; by adopting the structure of the utility model, the utility model implements that the airflow flows along the corrected L-shaped air inlet and outlet passage, avoids the damage to the inflation object caused by the flinging airflow; when the fan is removed from the support sleeve, the air discharging can be implemented, which is extremely convenient; by the linearly controlled inflation and the air discharging button controller and the electromagnet device, the air pressure in the inflation object can be conveniently adjusted extremely; the utility model is extremely simple and convenient for operation, with time saving and effort saving, is especially convenient and fast to adjust the air pressure, and has strong adaptability.