A device and method for grading Cladocera living organisms
A cladocera and living body technology, applied in the field of living body grading devices, can solve the problems of inability to classify daphnia living bodies, water consumption, and inability to survive small fish fry
Inactive Publication Date: 2018-08-24
DALIAN OCEAN UNIV
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Problems solved by technology
[0003] The current problem is that when feeding small fry, because there is no method or device that can classify daphnia according to body size, it is impossible to classify daphnia in vivo, and daphnia that are mixed in size are thrown to newborn small fish When used as bait, relatively large daphnia are often unable to be eaten by the young fry and survive. These daphnia will consume a large amount of oxygen in the water while growing up, making the water quality poor and not suitable for small fry. Survive
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[0015] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings. Such as figure 1 Shown: a device for grading living organisms of Cladocera, including a cylindrical shell 1, and an inner cylinder 2 coaxial with it is arranged at the center of the shell 1, and in the inner cylinder 2 A motor 3 is provided, and the motor 3 here selects a speed-regulating motor, and the top of the working shaft 4 of the motor 3 is connected with the rotating bracket 5, and the rotating bracket 5 is made up of three rotating arms 6 evenly distributed on the circumference. The bottom of each rotating arm 6 is also respectively connected with a thick partition 7, a middle partition 8 and a thin partition 9, and a plurality of holes are evenly distributed on these partitions, wherein the diameter of the holes on the thick partition 7 should be Greater than the diameter of the hole on the middle partition 8, and the diameter of th...
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The invention discloses a device for cladocera living body classification. The device comprises a cylindrical shell (1) and is characterized in that an inner barrel (2) coaxial with the shell (1) is arranged in the shell (1); a motor (3) is arranged in the inner barrel (2); a rotary support (5) is connected to the top end of a work shaft (4) of the motor (3) and is composed of three rotary arms (6) evenly distributed on the circumference; a thick separation plate (7), a middle separation plate (8) and a thin separation plate (9) which are evenly provided with a plurality of holes are connected to the lower portions of the three rotary arms (6) correspondingly, and the width of all the separation plates is equal to the difference value of the radius between the shell (1) and the inner barrel (2); the diameter of the holes in the thick separation plate (7) is larger than the diameter of the holes in the middle separation plate (8); and the diameter of the holes in the middle separation plate (8) is larger than the diameter of the holes in the thin separation plate (9).
Description
technical field [0001] The invention relates to a living body grading device, in particular to a device for grading Cladocera living bodies, and a method for grading with the device. Background technique [0002] Cladocera, also known as daphnia, belong to invertebrates, crustacea, branchiopoda, cladocera. Ubiquitous in fresh water or sea water, it is live bait for small fry. Under the strategic background of "Blue Granary", in order to better cultivate high-quality fry, it is very important to classify live bait for fry. Not only can the purpose of saving resources be achieved, but also the living environment of fry can be improved. [0003] The current problem is that when feeding small fry, because there is no method or device that can classify daphnia according to body size, it is impossible to classify daphnia in vivo, and daphnia that are mixed in size are thrown to newborn small fish When used as bait, relatively large daphnia are often unable to be eaten by the yo...
Claims
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IPC IPC(8): B07B1/28B07B1/46A01K61/90
CPCA01K61/00B07B1/28B07B1/4609B07B2201/04B07B2230/01
Inventor 李玉柱高吭张鹏李子玄马志平王子丹蒋影黄代钰
Owner DALIAN OCEAN UNIV