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Live fish catching device based on Archimedes screw

An Archimedes spiral, live fish technology, applied in fish farming, application, animal husbandry, etc., can solve the problems of huge equipment, inability to meet the problems of water cut off, hypoxia, damage and death, and low efficiency of live fish, reaching It takes up less space, improves the continuous stability of fish, and has high efficiency.

Pending Publication Date: 2019-03-29
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the dry vacuum fish pump, wet rotor fish pump and centrifugal fish pump cannot meet the requirements of live fish without water cut-off, hypoxia, damage and death during the lifting process, while the jet-type fish pump and the gravity difference fish lifting Huge equipment and low efficiency

Method used

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  • Live fish catching device based on Archimedes screw
  • Live fish catching device based on Archimedes screw

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] see Figure 1-Figure 2 , a live fish lifting device based on the Archimedes screw, comprising a main body bracket 2, the main body bracket 2 supports a cylinder 4, a central rotating shaft is arranged inside the cylindrical rotating shaft, and a helical blade 5 is fixedly installed on the central rotating shaft The power unit 3 is connected with the central shaft, and provides power to the rotation of the central shaft; the bottom of the main body support 2 is connected with the running mechanism 6, so that the inclination of the sleeve 4 can be adjusted; The inlet sleeve 1 of the cylinder is arranged coaxially with the cylinder 4 .

[0027] In this embodiment, the power unit 3 includes an electric speed reducer, a chain, and gears, the gears are installed on the shaft of the speed reducer and the central shaft respectively, and the pow...

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Abstract

The invention relates to a live fish catching device based on an Archimedes screw. The live fish catching device based on the Archimedes screw comprises a main body support, wherein the main body support supports a cylinder; a central rotating shaft is arranged in the cylinder; spiral blades are fixedly mounted on the central rotating shaft; a power device is connected with the central rotating shaft, and provides power for rotation of the central rotating shaft; the lower portion of the main body support is rotatably connected with a traveling mechanism, and thus, the dip angle of a sleeve isrotatably adjustable; an inlet sleeve of which the outer diameter is greater than that of the cylinder is arranged at the front end of the cylinder; and the inlet sleeve and the cylinder are arrangedcoaxially. The damage rate of fishes is reduced, the rate of survival after the fishes are caught is increased, and continuous stability of fish yield is improved; and the spiral blades with different screw pitches and outer diameters are selected according to different fish types and different sizes of the fishes, different rotating speeds are adjusted, and thus, the fish catching speed and strength are controllable.

Description

technical field [0001] The invention relates to a fish lifting device, in particular to a live fish lifting device based on the Archimedes screw. Background technique [0002] The fishing technology of live fish is an indispensable and important link in the process of fish farming and operation. Whether it is the pond change, grading, stocking and starting of fish in aquaculture production, or the starting and transshipment of fish in fishing production, Both have higher requirements on the non-damage rate of fish body. [0003] At present, the means of picking up and transporting fish mainly adopts manual lifting in China, specifically pulling nets, releasing water, etc. Human operation has the disadvantages of high labor intensity and low efficiency of picking up fish, and the friction and squeeze in the process of picking up fish The pressure will lead to a decline in the quality of the catch and serious damage to the fish body, which will affect the continued survival o...

Claims

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Application Information

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IPC IPC(8): A01K63/02
CPCA01K63/02
Inventor 张成林程斌斌管崇武
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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