The invention relates to a suction device. In order to solve the technical problems in the current water suction process, the invention provides a hand-operated water suction pump, which comprises a cylindrical pump body, a piston and a pull-push rod, and is characterized in that the front end of the pump body is provided with a water suction nozzle, the tail end of the water suction nozzle is fixed hermetically with the front end of the pump body, the piston is arranged in the pump body, a sealing ring with a V-shaped section is arranged on the edge of the piston, the opening of the sealing ring is upward, the edge of the sealing ring and the wall of the inner cavity of the pump body are in hermetic contact, the tail of the piston is fixedly connected with the pull-push rod, the pull-push rod protrudes from the sealing cover of the tail end of the pump body, a water outlet pipe is arranged on the outer wall close to the top end of the pump body, the water outlet pipe is communicated with the inner cavity of the pump body, a water inlet channel is arranged in the water suction nozzle, a semicircular groove is formed in the tail part of the water inlet channel, and a ball sealer is arranged in the semicircular groove. The hand-operated water suction pump is simple in structure and convenient to manufacture and maintain, has the advantages of small force application and high water yield when in a use, and is widely applicable for the environments needing water suction.


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    Title :

    Hand-operated water suction pump


    Contributors:
    WANG LITAO (author) / XU YOU (author)

    Publication date :

    2015-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS



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