Title:
ORAL IRRIGATOR AND WATER SUCTION PUMP
Document Type and Number:
WIPO Patent Application WO/2022/147929
Kind Code:
A1
Abstract:
A water suction pump and an oral irrigator provided with same. The water suction pump comprises a pump body (11) and a piston assembly (12) arranged in the pump body (11) in a reciprocating manner, wherein the pump body (11) and/or the piston assembly (12) are/is provided with an accommodating cavity (111) for accommodating lubricating oil to lubricate the piston assembly (12) when the piston assembly (12) reciprocates. The water suction pump further comprises an oil injection channel (131), which is in communication with the accommodating cavity (111), so as to inject the lubricating oil into the accommodating cavity (111). The water suction pump can inject the lubricating oil into the accommodating cavity (111) on the pump body (11) and/or the piston assembly (12) within a set time by means of arranging the oil injection channel (131) on a side wall of the pump body (11), thereby avoiding the phenomenon of the lubricating oil in the pump body (11) being used up, such that a piston is worn, and thus the oral irrigator is inconvenient to use or is scrapped.
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Inventors:
MAI HUABIN (CN)
Application Number:
PCT/CN2021/090068
Publication Date:
July 14, 2022
Filing Date:
April 26, 2021
Export Citation:
Assignee:
AIGDOO SHENZHEN TECH CO LTD (CN)
International Classes:
F04B53/18; A61C17/02
Domestic Patent References:
| WO2019048750A1 | 2019-03-14 |
Foreign References:
| CN204152741U | 2015-02-11 | |||
| CN212250364U | 2020-12-29 | |||
| CN203604193U | 2014-05-21 | |||
| CN110192925A | 2019-09-03 | |||
| CN203570564U | 2014-04-30 | |||
| CN102287367A | 2011-12-21 | |||
| CN201874808U | 2011-06-22 | |||
| CN2412545Y | 2001-01-03 | |||
| CN202370821U | 2012-08-08 | |||
| CN2485452Y | 2002-04-10 | |||
| US6302401B1 | 2001-10-16 | |||
| JPH02149774A | 1990-06-08 | |||
| GB2006870B | 1982-03-10 |
Attorney, Agent or Firm:
SHENZHEN REFINED INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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