Title:
WEIGHING SYSTEM AND WEIGHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/165916
Kind Code:
A1
Abstract:
A weighing device, comprising a weighing box (100), a weighing element (200), a bearing member (300), a lifting/lowering (400) assembly, and a gas supply assembly (500). The weighing box (100) is provided with an accommodating cavity (110) and a first through hole (120) communicated with the accommodating cavity (110); the weighing element (200) is provided with a weighing body (210) provided corresponding to the first through hole (120); the bearing member (300) is provided with a weighing end (310) and a bearing end (320); the bearing member (300) can reciprocate in the axial direction of the first through hole (120), and the outer wall of the bearing member (300) is spaced apart from the inner wall of the first through hole (120); the lifting/lowering assembly (400) is used for driving the bearing member (300) to reciprocate in the axial direction of the first through hole (120), such that the weighing end (310) is fit to or separated from the weighing body (210) in a bearing mode; and a gas supply outlet of the gas supply assembly (500) is communicated with the accommodating cavity (110). A dry protective gas is introduced into the accommodating cavity (110) by using the gas supply assembly (500), and the protective gas introduced into the accommodating cavity (110) can be discharged through a gap between the outer wall of the bearing member (300) and the inner wall of the first through hole (120), such that the gas in the accommodating cavity (110) can be replaced, thereby enabling the weighing element (200) to work in a proper environment all the time, and ensuring the weighing precision.
Inventors:
LIU LIPIN (CN)
LI YINBAO (CN)
ZENG XUYONG (CN)
LI YINBAO (CN)
ZENG XUYONG (CN)
Application Number:
PCT/CN2021/080466
Publication Date:
August 11, 2022
Filing Date:
March 12, 2021
Export Citation:
Assignee:
GUANGZHOU LABSTONE INSTRUMENTS TECH CO LTD (CN)
International Classes:
G01G21/00; G01G21/28; G01G23/00
Foreign References:
| CN207231621U | 2018-04-13 | |||
| CN103644956A | 2014-03-19 | |||
| CN105841790A | 2016-08-10 | |||
| CN201155988Y | 2008-11-26 | |||
| CN108106958A | 2018-06-01 | |||
| EP2230495A1 | 2010-09-22 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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