Search

CN-224219241-U - Macrobrachium rosenbergii offspring seed net

CN224219241UCN 224219241 UCN224219241 UCN 224219241UCN-224219241-U

Abstract

The utility model discloses a macrobrachium rosenbergii fingerling net, which belongs to the technical field of aquaculture and comprises a fixed frame, wherein a fishing net is movably connected inside the fixed frame, floating columns are fixedly connected above the front side and the rear side of the fixed frame, a pull rope is fixedly connected to the left side of the fixed frame, and a winding device is fixedly connected to one end, far away from the fixed frame, of the pull rope. According to the utility model, the fishing net is arranged, so that the fishing net is beneficial to screening of the macrobrachium rosenbergii fries with different sizes, the fishing net is inserted into the slots for fixing when in use, the fixing frame can be thrown into the culture pond after the fixing is completed, then the pull rope is pulled, the winding rope is wound on the rotary drum for winding, and the fixing frame moves along with the pulling of the pull rope, so that the fishing net can catch the macrobrachium rosenbergii fries, meshes of net bodies in the fishing nets become smaller from left to right in sequence, the shrimp fries with different sizes can be screened, the manual sorting is not needed, and the labor intensity is reduced.

Inventors

  • ZHU JIAHUI
  • ZHU DONGMIN
  • ZHOU JINGZI

Assignees

  • 宁波甬港水产种苗科技有限公司

Dates

Publication Date
20260512
Application Date
20250515

Claims (6)

  1. 1. The macrobrachium rosenbergii seed pulling net comprises a fixed frame (1) and is characterized in that a fishing net (2) is movably connected inside the fixed frame (1), floating columns (3) are fixedly connected above the front side and the rear side of the fixed frame (1), pull ropes (4) are fixedly connected to the left side of the fixed frame (1), a winding device (5) is fixedly connected to one end, far away from the fixed frame (1), of each pull rope (4) and comprises a connecting frame (204) movably connected inside the fixed frame (1), a net body (205) is fixedly connected to the inner side of the connecting frame (204), a connecting plate (201) is fixedly connected to the top of the connecting frame (204), a pulling handle (202) is fixedly connected to the top of the connecting plate (201), and rubber strips (203) are fixedly connected to the two sides of the connecting plate (201).
  2. 2. The macrobrachium rosenbergii seed net of claim 1, wherein the fixed frame (1) comprises a frame body (101), counterweight columns (102) are fixedly connected to the lower parts of the front side and the rear side of the frame body (101), through holes (103) are formed in the outer side of the frame body (101), slots (104) are formed in the frame body (101), and fixing grooves (105) are formed in the upper part of the inner side of the frame body (101).
  3. 3. The macrobrachium rosenbergii fingerling net of claim 1, wherein the floating columns (3) comprise columns (301) fixedly connected above the front side, the rear side and the upper sides of the frame body (101), and two sides of the inner side of each column (301) are fixedly connected with sealing plates (302).
  4. 4. The macrobrachium rosenbergii fingerling net of claim 1, wherein the pull rope (4) comprises a connecting rope (401) fixedly connected to the left side of the frame body (101), and a winding rope (402) is fixedly connected to one end, far away from the frame body (101), of the connecting rope (401).
  5. 5. The macrobrachium rosenbergii fingerling net of claim 1, wherein the winding device (5) comprises a rotary drum (501) fixedly connected to one end, far away from the frame body (101), of a winding rope (402), a fixed shaft (502) is movably connected to the inside of the rotary drum (501), limiting discs (506) are fixedly connected to two sides of the fixed shaft (502), a grip (505) is fixedly connected to one side, far away from the fixed shaft (502), of the limiting discs (506), bolts (504) are connected to inner threads of the limiting discs (506), and limiting grooves (503) are formed in the front side of the rotary drum (501).
  6. 6. The macrobrachium rosenbergii fingerling net according to claim 1, wherein the meshes of the net body (205) in the fishing net (2) in the fixed frame (1) are sequentially reduced from left to right.

Description

Macrobrachium rosenbergii offspring seed net Technical Field The application relates to the technical field of aquaculture, in particular to a macrobrachium rosenbergii fingerling net. Background The macrobrachium rosenbergii is also called as freshwater longbrachium megalobramosum and Malaysia macrobrachium rosenbergii, is one of the largest freshwater shrimps in the world, becomes an important economic cultivation variety because of fast growth, large individuals and rich nutrition, and needs to catch the macrobrachium rosenbergii offspring seed by using a net when the macrobrachium rosenbergii is cultivated. However, the existing macrobrachium rosenbergii offspring seed nets have the defects that, for example, when the existing macrobrachium rosenbergii offspring seed nets are used, macrobrachium rosenbergii offspring seeds with different sizes cannot be screened, so that individual sizes of the macrobrachium rosenbergii offspring seeds in the same batch are different, and the macrobrachium rosenbergii offspring seeds with different sizes need to be manually sorted, so that the labor intensity is high. Disclosure of Invention The application aims to provide a macrobrachium rosenbergii fingerling net. In order to achieve the purpose, the technical scheme includes that the macrobrachium rosenbergii fingerling net comprises a fixed frame, wherein a fishing net is movably connected inside the fixed frame, floating columns are fixedly connected above the front side and the rear side of the fixed frame, a pull rope is fixedly connected to the left side of the fixed frame, a winding device is fixedly connected to one end, away from the fixed frame, of the pull rope, the fishing net comprises a connecting frame movably connected inside the fixed frame, a net body is fixedly connected to the inner side of the connecting frame, a connecting plate is fixedly connected to the top of the connecting frame, a pull handle is fixedly connected to the top of the connecting plate, and rubber strips are fixedly connected to the two sides of the connecting plate. As one preferable mode, the fixing frame comprises a frame body, wherein the lower parts of the front side and the rear side of the frame body are fixedly connected with weight columns, the outer side of the frame body is provided with a through hole, the inside of the frame body is provided with a slot, and the upper part of the inner side of the frame body is provided with a fixing groove. As another preferable mode, the floating column comprises columns fixedly connected above the front side and the rear side of the frame body, and two sides of the inner side of each column are fixedly connected with sealing plates. Further preferably, the pull rope comprises a connecting rope fixedly connected to the left side of the frame body, and one end, far away from the frame body, of the connecting rope is fixedly connected with a winding rope. Further preferably, the winding device comprises a rotary drum fixedly connected with one end of the winding rope far away from the frame body, a fixed shaft is movably connected inside the rotary drum, a limiting disc is fixedly connected to two sides of the fixed shaft, a grip is fixedly connected to one side of the limiting disc far away from the fixed shaft, a bolt is connected to the inner thread of the limiting disc, and a limiting groove is formed in the front side of the rotary drum. Further preferably, the meshes of the net body in the fishing net in the fixing frame are sequentially reduced from left to right. Compared with the prior art, the application has the beneficial effects that: According to the utility model, the fishing net is arranged, so that the seedlings of macrobrachium rosenbergii with different sizes can be screened, the connecting frame is inserted into the slots when in use, the rubber strips can be contacted with the frame body by continuously inserting the connecting frame, the rubber strips can be deformed by extrusion, the connecting frame can be completely inserted into the slots, the rubber strips can enter the fixing grooves, the fishing net is fixed, the fixing frame is thrown into the culture pond after the fixing is completed, the fixing frame can sink into water under the action of the balance post, the lower part of the fixing frame can face the bottom of the culture pond under the action of the floating post, the pull rope is pulled and wound on the rotary drum for winding, the fixing frame moves along with the pulling of the pull rope, the fishing net can catch the seedlings of the macrobrachium rosenbergii, the net bodies in a plurality of fishing nets become smaller from left to right, the seedlings of the macrobrachium rosenbergii with different sizes can be screened, the labor intensity of the macrobrachium rosenbergii is reduced. Drawings FIG. 1 is a schematic diagram of the overall structure of a macrobrachium rosenbergii seed netting; fig. 2 is a schematic diagram of the overall str