Title:
PRESSING PUMP
Document Type and Number:
WIPO Patent Application WO/2018/145511
Kind Code:
A1
Abstract:
A pressing pump (1), comprising: a pressing pump body (10), the pressing pump body (10) being provided therein with a spring tube (20), while a spring (21) is accommodated in the spring tube (20); a cylinder cover (30), the cylinder cover (30) being installed on the pressing pump body (10) and comprising an inner hole (31); a pressure head (40), the pressure head (40) comprising a pressing part (41) and a rod part (42), wherein the rod part (42) fits within the inner hole (31) of the cylinder cover (30), and a lower portion of the rod part (42) fits with the spring (21) such that the spring (21) applies an upward biasing force on the pressure head (40); and a piston (50), the piston being connected to the pressure head (40) and being slidably sealed fit with an inner peripheral surface of the pressing pump body (10). The pressing pump (1) may use a spring (21) having a small size to meet large discharge requirements, thereby reducing manufacturing costs, and may further prevent a product from touching the spring (21), thus preventing adverse effects therebetween.
Inventors:
DING YAO WU (CN)
Application Number:
PCT/CN2017/115423
Publication Date:
August 16, 2018
Filing Date:
December 11, 2017
Export Citation:
Assignee:
DING YAO WU (CN)
International Classes:
B65D83/76; B65D47/34
Foreign References:
| CN206734939U | 2017-12-12 | |||
| CN203064485U | 2013-07-17 | |||
| CN101772462A | 2010-07-07 | |||
| CN2386750Y | 2000-07-12 | |||
| CN203158449U | 2013-08-28 | |||
| CN104724378A | 2015-06-24 | |||
| JPH09301410A | 1997-11-25 | |||
| JP2013052896A | 2013-03-21 |
Other References:
See also references of EP 3581518A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
Download PDF: