US 11,939,973 B1
Air pump with automatic air pumping function
Shuaijie Xu, Wuyi (CN)
Assigned to ZHEJIANG SHIJING TOOLS CO., LTD, Wuyi (CN)
Filed by ZHEJIANG SHIJING TOOLS CO., LTD, Wuyi (CN)
Filed on Nov. 19, 2023, as Appl. No. 18/513,574.
Int. Cl. F04B 49/06 (2006.01); F04B 35/04 (2006.01); F04B 35/06 (2006.01); F04B 39/12 (2006.01); F04B 49/00 (2006.01); F04B 49/02 (2006.01); F04B 49/08 (2006.01)
CPC F04B 49/06 (2013.01) [F04B 35/04 (2013.01); F04B 35/06 (2013.01); F04B 39/12 (2013.01); F04B 39/121 (2013.01); F04B 39/123 (2013.01); F04B 49/00 (2013.01); F04B 49/022 (2013.01); F04B 49/065 (2013.01); F04B 49/08 (2013.01); F04B 2205/03 (2013.01); F04B 2205/04 (2013.01); F04B 2205/05 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An air pump with an automatic air pumping function, comprising a shell (1) and a sealing ring (2), wherein an automatic air replenishing mechanism (3) is arranged at one end of the shell (1), and the other end of the shell (1) is sleeved with a mounting barrel (4);
the automatic air replenishing mechanism (3) comprises a battery mounting box (301) mounted on an inner wall of the shell (1); a battery pack (302) is arranged inside the battery mounting box (301); a vacuum pump (303) is arranged on the inner wall of the shell (1); one end of the shell (1) is clamped with a detection box (304); an air pressure sensor (305) is arranged inside the detection box (304); a two-way valve (306) communicated with the vacuum pump (303) is embedded into an end of the detection box (304); the sealing ring (2) sleeves onto a surface of the detection box (304); a shape of the sealing ring (2) is a hollow circular truncated cone; a digital display circuit board (307) is arranged on a surface of the battery mounting box (301); and an output end of the battery pack (302) is electrically connected to an input end of the digital display circuit board (307).