Patent ID: 11913887
Assignee: ZHEJIANG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A grain sampling and imaging device, which comprises a grain bin (1), an observation window (2), a camera (3), a grain feed connector (4) and a sampling body (5), wherein:
the grain bin (1) is located under the sampling body (5), the grain feed connector (4) is fixed to a top of the sampling body (5), the observation window (2) is installed on the sampling body (5), the camera (3) is installed above the observation window (2) a multi-stage restricting port (5.5) is provided at a top end of the sampling body (5) for forming a feed inlet of the sampling body (5);
multiple separation passages arranged inclined downwardly and an outlet passage (5.12) vertically arranged are provided within the sampling body (5), the multiple separation passages are respectively defined as a first separation passage (A), a second separation passage (B), a detection passage (C) and a recovery passage (D);
an upper end of the first separation passage (A) is communicated with an outlet provided at a lower end of the multi-stage restricting port (5.5), a first separation hole (5.10) is provided in a bottom surface of a middle portion of the first separation passage (A), a lower end of the first separation passage (A) is connected with an upper end of the outlet passage (5.12), the first separation passage (A) is communicated with an upper end of the second separation passage (B) through the first separation hole (5.10), a lower end of the second separation passage (B) is connected with an upper end of the recovery passage (D), a second separation hole (5.11) is provided in a bottom surface of a middle portion of the second separation passage (B), the second separation passage (B) is communicated with an upper end of the detection passage (C) through the second separation hole (5.11), a lower end of the detection passage (C) and a lower end of the recovery passage (D) are connected with a lower portion of the outlet passage (5.12), a lower end of the outlet passage (5.12) penetrates through the sampling body (5) for forming a discharge outlet (5.1) of the sampling body (5);
the transparent observation window (2) is installed at a position of an outer wall of the sampling body (5) where the detection passage (C) is provided;
two through slots (5.13, 5.14) are provided on a top surface of the middle portion of the first separation passage (A) and a position of the bottom surface of the middle portion of the first separation passage (A) below the first separation hole (5.10), respectively; and
an observation passage (5.6) is provided between the two through slots (5.13, 5.14), the camera (3) passes through the two through slots (5.13, 5.14) and is installed in the observation passage (5.6) and faces towards the detection passage (C) for photographing.