Spray pump with external springs

Spray pump with external springs

  • CN 105,270,760 A
  • Filed: 10/19/2015
  • Published: 01/27/2016
  • Est. Priority Date: 10/19/2015
  • Status: Active Application
First Claim
Patent Images

1. an external spring type atomizing pump, comprise the pump housing (1), the piston rod (3) be located at the piston (2) in the pump housing (1) and coordinated with described piston (2) inwall, described piston rod (3) sidewall is provided with the inlet (31) that can be communicated with the pump housing (1), the outer of described piston rod (3) is arranged with piston rod cover (4), this piston rod cover (4) is provided with the first elastic component (5), it is characterized in that:

  • described piston rod (3) is provided with the second elastic component (6), one end and the described piston rod cover of this second elastic component (6) offset (4), the other end and the described piston (2) of the second elastic component (6) offset, described second elastic component (6) produces downward elastic force F1 to piston (2), press the first elastic component (5) air pressure be compressed in the pump housing (1) when being greater than this elastic force F1, piston (2) moves and exposes inlet (31).

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