Patent ID: 6116873
Filing Date: 2000-09-12
Classification: F04B

Abstract:
A floor pump comprising:a pump seat having a cylinder extending into a chamber, a base connected with a bottom end of said cylinder, and a cross through hole located at the bottom end of said cylinder at an angle to an axis of the pump seat and in communication with said chamber;a perforated end collar fastened with a top end of said cylinder;a pumping rod having a rod body inserted into said chamber via said end collar, and a handle connected with a top end of said rod body and located outside chamber;a valve seat fastened with a bottom end of said rod body such that movement of a top side of said valve seat is limited by a bottom side of said end collar;a valve plug fastened with a bottom side of said valve seat;a rotating member having a shaft tube rotatably engaged in said cross through hole; one end of said shaft tube projecting out of said cross through hole, said one end provided with threads; a tube head connected with another end of said shaft tube and located outside said cross through hole; an air duct extending from said one end of said shaft tube to said tube head; and an air admitting hole extending from a periphery of said shaft tube to said air duct;two leakproof rings engaged on opposite sides of said air admitting hole to prevent leakage of air entering from said chamber into said cross through hole to the atmosphere;a locating member threadedly engaged with said one end of said shaft tube of said pivoting member;a check valve fastened with said tube head;an air nozzle head having a head, a receiving cell located in said head, an injector received in said receiving cell, and wrench fastened with one end of said head for pressing said injector and said soft cylinder; anda flexible air guiding hose connected at one end thereof with said tube head of said rotating member, and at other end thereof with said head of said air nozzle head, to guide air from said air duct of said pivoting member to said receiving cell of said air nozzle head.