Title:
VACUUM PUMP HAVING GOOD NOISE REDUCTION EFFECT
Document Type and Number:
WIPO Patent Application WO/2022/000903
Kind Code:
A1
Abstract:
A vacuum pump having a good noise reduction effect, comprising a casing body (1). A sound insulation plate (2) is fixedly connected to an inner wall of the casing body (1); a sound absorbing cover (3) is provided penetrating through the right side of the casing body (1); springs (4) are fixedly connected to two sides of the bottom of the inner cavity of the sound insulation plate (2); tops of the springs (4) are fixedly connected to a movable plate (5); a connecting plate (6) is provided on the top of the movable plate (5); a pump body (7) is fixedly connected to the top of the connecting plate (6); an oil cavity (8) is fixedly connected to the bottom of the inner cavity of the sound insulation plate (2); by means of the cooperation of the casing body (1), the sound insulation plate (2), the sound absorbing cover (3), the springs (4), the movable plate (5), the connecting plate (6), the pump body (7), the oil cavity (8), a piston rod (9), a connecting rod (10) and a connecting block (11), the vacuum pump achieves the purpose of a good noise reduction effect, is capable of effectively carrying out noise reduction on noise generated by the vacuum pump, avoids troubles to users, improves the experience of the users to the vacuum pump, satisfies demands of the market today, improves the practicability and usability of the vacuum pump, and solves the problem of a poor noise reduction effect of conventional vacuum pumps.
Inventors:
FAN XINTING (CN)
Application Number:
PCT/CN2020/126939
Publication Date:
January 06, 2022
Filing Date:
November 06, 2020
Export Citation:
Assignee:
SUZHOU ZHONGCHUANG SUNSHINE NEW ENERGY TECH CO LTD (CN)
International Classes:
F04B39/00
Domestic Patent References:
| WO2012140590A2 | 2012-10-18 |
Foreign References:
| CN209340735U | 2019-09-03 | |||
| CN208362922U | 2019-01-11 | |||
| CN206376999U | 2017-08-04 | |||
| CN210509560U | 2020-05-12 | |||
| CN110243106A | 2019-09-17 | |||
| CN209195634U | 2019-08-02 | |||
| CN208221020U | 2018-12-11 | |||
| CN207212620U | 2018-04-10 |
Attorney, Agent or Firm:
BEIJING JINGDA LAW FIRM (CN)
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