Title:
LIQUID LEVEL METER, SPRAYING ASSEMBLY, AND UNMANNED AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/243506
Kind Code:
A1
Abstract:
Disclosed is a liquid level meter, comprising a measurement assembly (10) and a detection device (20). The measurement assembly (10) comprises a first measured unit (11), a second measured unit (12) and a connecting piece (13), wherein the connecting piece (13) is configured to flexibly connect the first measured unit (11) and the second measured unit (12); and after the first measured unit (11) rises to a first height in a liquid, the first measured unit (11) can drive the second measured unit (12) to float by means of the connecting piece (13). The detection device (20) can detect the position of at least one of the first measured unit (11) and the second measured unit (12), and generate a liquid level measurement signal on the basis of detected position information. In the liquid level meter, the second measured unit and the first measured unit are arranged in linkage manner, such that when the first measured unit exceeds a measurement range, the second measured unit can be detected, thereby increasing the total range of the liquid level meter. Further disclosed are a spraying assembly provided with the liquid level meter, and an unmanned aerial vehicle.
Inventors:
SHU ZHAN (CN)
MENG XIANG (CN)
ZHOU WANREN (CN)
MENG XIANG (CN)
ZHOU WANREN (CN)
Application Number:
PCT/CN2020/093703
Publication Date:
December 09, 2021
Filing Date:
June 01, 2020
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G01F23/22; G01F23/292
Foreign References:
| CN212058988U | 2020-12-01 | |||
| CN110785639A | 2020-02-11 | |||
| CN2333001Y | 1999-08-11 | |||
| CN102906551A | 2013-01-30 | |||
| CN206556713U | 2017-10-13 | |||
| CN107990961A | 2018-05-04 | |||
| JPS5956111A | 1984-03-31 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
Download PDF: