US 12,411,034 B2
Flow meter
Yong Ji, Shanghai (CN); and Hongfei Mei, Shanghai (CN)
Assigned to Shanghai Kohler Electronics, Ltd., Shanghai (CN)
Filed by Shanghai Kohler Electronics, Ltd., Shanghai (CN)
Filed on Dec. 21, 2022, as Appl. No. 18/085,626.
Claims priority of application No. 202123345148.3 (CN), filed on Dec. 28, 2021.
Prior Publication US 2023/0204398 A1, Jun. 29, 2023
Int. Cl. G01F 1/84 (2006.01)
CPC G01F 1/8413 (2013.01) 20 Claims
OG exemplary drawing
 
1. A flow meter, comprising:
a lower shell;
an upper shell disposed on the lower shell;
a running water cavity disposed between the lower shell and the upper shell;
an impeller disposed in the running water cavity, the impeller comprising:
an installation positioning hole disposed at a bottom portion of the impeller; and
a rotating positioning hole disposed at a top portion of the impeller;
an installation positioning shaft extending upward from the lower shell and configured to be inserted into the installation positioning hole; and
a rotating positioning shaft extending downward from the upper shell and configured to be inserted into the rotating positioning hole.