A vehicle-mounted air inflation pump comprises a shell body, an air cavity is formed in the shell body, an air inlet and an air outlet are formed in the air cavity, an air inlet one-way valve and an air outlet one-way valve are arranged at the air inlet and the air outlet respectively, the air inlet one-way valve comprises an air inlet valve plate and an air inlet valve ring, the valve ring is provided with an air inlet electromagnet, and the position contacted with the air inlet electromagnet of the air inlet valve plate is provided with a first block which can be attracted by the air inlet electromagnet; the air outlet one-way valve comprises an air outlet valve plate and an air outlet valve ring, the air outlet valve ring is provided with an air outlet electromagnet, the position contacted with the air outlet electromagnet of the air outlet valve plate is provided with a second block which can be attracted by the air outlet electromagnet in a power-up state, and a piston is provided with a contact switch which controls the power on and power off of the air inlet electromagnet and the air outlet electromagnet. The vehicle-mounted air inflation pump has the advantages that great airtightness of the closed one-way valve can be guaranteed when the pump runs, air inflation can be conducted smoothly, and the structure is simple.
Vehicle-mounted air inflation pump
2015-05-13
Patent
Electronic Resource
English
IPC: | F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
European Patent Office | 2020
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