CN115971025A - A device that is arranged in female and male parent screening of freshwater shrimp fine breed seed selection - Google Patents
A device that is arranged in female and male parent screening of freshwater shrimp fine breed seed selection Download PDFInfo
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- CN115971025A CN115971025A CN202310011901.XA CN202310011901A CN115971025A CN 115971025 A CN115971025 A CN 115971025A CN 202310011901 A CN202310011901 A CN 202310011901A CN 115971025 A CN115971025 A CN 115971025A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses a device for screening male and female parents in freshwater shrimp fine breed breeding, which comprises a box body, a screen, an adjusting rod and a locking device, wherein the box body is communicated up and down, the opening at the lower end of the box body is provided with the screen, the screen comprises a plurality of screen bars which are arranged in a linear array manner and are arranged at equal intervals, the cross sections of the screen bars are oval, two ends of each screen bar are respectively and rotatably connected with two ends of the box body, any one end or two ends of each screen bar are respectively connected with a connecting rod, the connecting rods are mutually parallel, one end of each connecting rod is fixed on the screen bar, the other end of each connecting rod is rotatably connected on the adjusting rod by a rotating axis parallel to the central line of the screen bar, the rotating axis is equal to the central line of the corresponding screen bar, the adjusting rod is synchronously driven to rotate by moving the adjusting rod to adjust the screening gap between two adjacent screen bars, and the adjusting rod is locked by the locking device after the screening gap is adjusted to the female shrimp or male shrimp screening gap. The method can improve the screening efficiency, reduce the damage to the freshwater shrimp body and improve the survival rate.
Description
Technical Field
The invention relates to the technical field of freshwater shrimp breeding, in particular to a device for screening male and female parents in freshwater shrimp fine breed breeding.
Background
The freshwater shrimps are important freshwater economic shrimps in China. The selective breeding of fine freshwater shrimp seeds and the high-quality and high-efficiency seed supply are the key points of the high-quality development of the industry. In the process of freshwater shrimp seed production and fine variety breeding, male and female parents are usually selected firstly, the male and female parents are separately cultivated, and then the male and female parents of different groups or families are selected for matching and mating according to the parent mating requirements in group breeding or family breeding. The freshwater shrimps have the remarkable characteristics of intolerance to hypoxia, relatively thin shells, damage to organisms and the like, so that the operation needs to be fast and light in the screening process of the female parent and the male parent of the freshwater shrimps, and the freshwater shrimps are not easy to leave water, so that the organism damage of the freshwater shrimps, such as extrusion, collision and the like, and hypoxia stress reaction caused by water leaving are reduced. Therefore, great attention needs to be paid to safety and timeliness improvement when screening male and female parents of freshwater shrimps.
At present, the freshwater shrimp grading and screening equipment mainly uses screens with different screen bar intervals to carry out grading and screening on commercial shrimps so as to achieve the grading and selling purposes of specification grade and price difference. The group breeding and the seed breeding of the freshwater shrimps are mostly carried out in a pond or a cement pond, and in actual operation, special equipment for screening the freshwater shrimps is lacked, and the female and male parents are screened mostly by replacing screens with different mesh distances. However, many defects exist when different screens are replaced, for example, the difference between female and male freshwater shrimps is large, different screens need to be replaced when the female and male shrimps are screened, and extrusion contact is easily caused in the screen replacing process, so that the body of the freshwater shrimps can be damaged. And because the freshwater shrimps are not tolerant to hypoxia, the freshwater shrimps are not beneficial to long-time high-density temporary storage. Under more circumstances, female and male parent's of freshwater shrimp screening is mainly through artifical the selection, and has a great deal of defect in artifical selection process equally, for example, because do not hold in place to the power size when snatching, easily the prawn body causes the damage, leads to parental survival rate not high, and selects efficiency not high one by one. The selected freshwater shrimp parents are generally directly thrown back into water, and the impact on the freshwater shrimp bodies when the freshwater shrimp parents fall off the water surface is large, so that the stress response and the mechanical damage of the freshwater shrimps are easily caused, and the survival rate of the freshwater shrimps is unfavorable. In addition, in the screening process, the shrimps are gathered at high density for a long time and cannot be separated quickly, so that the condition of limb breakage caused by mutual attack is easy to occur, and the subsequent breeding effect is influenced. Therefore, a screen capable of rapidly changing the distance between screens is needed to be developed, so that male and female parents can be screened in one screen successively, the screening efficiency of the female and male parents for group breeding of the freshwater shrimps is improved, and the aims of reducing damage to the freshwater shrimp body and improving the survival rate are fulfilled.
Disclosure of Invention
The invention aims to provide a device for screening male and female parents in fine freshwater shrimp breeding, which solves the problems in the prior art, can quickly change the distance between screens, and can screen the male and female parents in water without screen replacement, thereby improving the screening efficiency, reducing the damage to the freshwater shrimp organism and improving the survival rate.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a device for screening male and female parents in freshwater shrimp fine breed breeding, which comprises a box body, a screen, an adjusting rod and a locking device, wherein the box body is communicated up and down, the screen is arranged at an opening at the lower end of the box body, the screen comprises a plurality of screen bars which are arranged in a linear array mode and are arranged at equal intervals, the cross sections of the screen bars are oval, two ends of each screen bar are respectively and rotatably connected to two ends of the box body, any one end or two ends of each screen bar are respectively connected with a connecting rod, the connecting rods are parallel to each other, one end of each connecting rod is fixed on each screen bar, the other end of each connecting rod is rotatably connected to the adjusting rod through a rotating axis parallel to the central line of each screen bar, the rotating axis and the central line of the screen bar corresponding to the rotating axis are equal in distance, the adjusting rod is moved to synchronously drive each screen bar to rotate so as to adjust a screening gap between two adjacent screen bars, and after the screening gap is adjusted to the female shrimp or male shrimp screening gap, the adjusting rod is locked on the box body through the locking device.
Preferably, when the long axes of the screen bars are positioned on the same plane, the screening gap is a female shrimp screening gap, and female shrimps leak out of the screening gap; when the short shafts of the screen bars are positioned on the same plane, the screening gaps are male shrimp screening gaps, and male shrimps leak out of the screening gaps.
Preferably, the positions of any one of the connecting rods are symmetrically arranged around a vertical plane when the screening gap is a female shrimp screening gap and a male shrimp screening gap, and the positions of the adjusting rods are positioned at the same height position of the box body when the screening gap is a female shrimp screening gap and a male shrimp screening gap; locking device includes that the U-shaped is detained and the bolt, it is in to adjust the pole when the screening clearance is female shrimp screening clearance or male shrimp screening clearance position, the U-shaped detain the cover in adjust on the pole, just the open end that the U-shaped was detained passes to be located adjust the pole both sides pass through behind two through-holes on the box the bolt is closed the open end.
Preferably, handles are mounted at two ends of the box body.
Preferably, a detachable floating body is arranged outside the box body.
Preferably, the box is square, and four inside corners of the box are rounded.
Preferably, the box body is made of PE, and foam plastics are filled inside the box body.
Preferably, the interior of the screen bar is filled with foaming agent, and two ends of the screen bar are arranged in a sealing mode.
Preferably, two ends of the screen bar are respectively and rotatably connected into circular holes formed in two ends of the box body, and the diameter of a long shaft of the cross section of the screen bar is equal to that of the circular holes; the two ends of the screen bar are provided with flanges which are arranged outwards, and the flanges at the two ends limit the screen bar on the box body in the axial direction.
Preferably, the adjusting rod is a rectangular adjusting rod formed by connecting four rod pieces, and the connecting rods at the two ends are respectively connected to the rod pieces at the two ends of the adjusting rod.
Compared with the prior art, the invention has the following technical effects:
the invention provides a device for screening male and female parents in freshwater shrimp fine breed breeding, wherein a screen is arranged at an opening at the lower end of a box body, the screen comprises a plurality of screen bars which are arranged in a linear array mode and are arranged at equal intervals, the cross section of each screen bar is oval, two ends of each screen bar are respectively and rotatably connected to two ends of the box body, any one end or two ends of each screen bar are respectively connected with a connecting rod, the connecting rods are mutually parallel, one end of each connecting rod is fixed on each screen bar, the other end of each connecting rod is rotatably connected to an adjusting rod through a rotating axis parallel to the central line of each screen bar, the distance between each rotating axis and the central line of the corresponding screen bar is equal, each screen bar is synchronously driven to rotate by moving the adjusting rod to adjust a screening gap between two adjacent screen bars, and after the screening gap is adjusted to a female shrimp or a male shrimp screening gap, the adjusting rod is locked on the box body through a locking device, so that the screening gap is fixed to screen the corresponding female shrimp or male shrimp. The purpose of adjusting the screen clearance to the screening clearance of the female shrimps or the male shrimps can be realized only by moving the adjusting rod, the adjustment is convenient and fast, and the female and male parents can be screened successively without changing the screen in the water body, so that the screening efficiency is improved, the damage to the freshwater shrimp organism is reduced, and the survival rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the apparatus for screening male and female parents in fine breed selection of freshwater shrimps provided by the present invention;
FIG. 2 is a top view of the apparatus for screening male and female parents in fine breed selection of freshwater shrimps provided by the present invention;
FIG. 3 is a left side view of the apparatus for screening male and female parents in fine breed selection of freshwater shrimps provided by the present invention;
FIG. 4 is a front view of the apparatus for screening male and female parents in fine breed selection of freshwater shrimps provided by the present invention;
FIG. 5 is a schematic view of the locking device of the present invention locking the adjustment lever;
in the figure: 1-box body, 2-screen mesh, 3-adjusting rod, 4-screen bar, 5-connecting rod, 6-U-shaped buckle, 7-bolt, 8-handle, 9-floating body, 10-rod piece and 11-flanging.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a device for screening male and female parents in fine freshwater shrimp breeding, which solves the problems in the prior art, can quickly change the distance between screens, and can screen the male and female parents in water without changing screens, thereby improving the screening efficiency, reducing the damage to the bodies of the freshwater shrimps and improving the survival rate.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.
As shown in fig. 1-5, the present embodiment provides a device for screening male and female parents in breeding of improved freshwater shrimp species, which includes a box 1, a screen 2, an adjusting rod 3 and a locking device, wherein the box 1 is through from top to bottom, the screen 2 is disposed at an opening at a lower end of the box 1, the screen 2 includes a plurality of screen bars 4 arranged in a linear array manner and arranged at equal intervals, a cross section of each screen bar 4 is elliptical, two ends of each screen bar 4 are respectively rotatably connected to two ends of the box 1, any one end or two ends of each screen bar 4 are respectively connected with a connecting rod 5, preferably, two ends of each screen bar 4 are respectively connected with a connecting rod 5, each connecting rod 5 is parallel to each other, one end of each connecting rod 5 is fixed on the screen bar 4, the other end is rotatably connected to the adjusting rod 3 with a rotation axis parallel to a central line of the screen bar 4, each rotation axis is equal to a central line of the corresponding screen bar 4, the adjusting rod 4 is synchronously driven to rotate by moving the adjusting rod 3 to adjust a screening gap between two adjacent screen bars 4, and after the screening gap between the female shrimp or the male shrimp is adjusted to the male shrimp screening gap, the adjusting rod 3 is locked on the box 1 by the locking device.
Because the cross section of grating 4 is oval, when each grating 4 is rotated in step, make the clearance between two adjacent gratings 4 can be adjusted, during the use, drive each grating 4 through moving adjusting pole 3 in step and rotate, adjust and screen the clearance for female shrimp, screen female shrimp earlier, female shrimp is less for the male shrimp, spill from female shrimp screening clearance, then, move adjusting pole 3 and drive each grating 4 rotation in step, adjust and screen the clearance for male shrimp, screen male shrimp, male shrimp screens the clearance from male shrimp. After the regulation is in place, the regulating rod 3 is locked on the box body 1 through the locking device, so that the screening gap is fixed to screen corresponding female shrimps or male shrimps. Adopt this sieving mechanism, only need to adjust regulation pole 3 and can realize adjusting the mesh 2 clearance for the purpose in female shrimp or the male shrimp screening clearance, adjust convenient and fast, can not sieve the male and female parent of successively screening in the water to improve screening efficiency, reduce the damage that causes the freshwater shrimp organism, improve the survival rate.
In this embodiment, when the long axes of the screen bars 4 are located on the same plane, the screening gap is a female shrimp screening gap, and female shrimps leak from the screening gap; when the short shafts of the screen bars 4 are positioned on the same plane, the screening gap is a male shrimp screening gap, and male shrimps leak out of the screening gap. When the long axis of each screen bar 4 is located the coplanar, the screening clearance is minimum, and when the minor axis of each screen bar 4 is located the coplanar, the screening clearance is maximum, conveniently judges whether the screening clearance is adjusted to female shrimp screening clearance or male shrimp screening clearance.
In the embodiment, the positions of any connecting rod 5 when the screening gaps are female shrimp screening gaps and male shrimp screening gaps are symmetrically arranged about a vertical plane, and the positions of the adjusting rods 3 when the screening gaps are female shrimp screening gaps and male shrimp screening gaps are positioned at the same height position of the box body 1; the locking device comprises a U-shaped buckle 6 and a bolt 7, when the screening gap of the adjusting rod 3 is a female shrimp screening gap or a male shrimp screening gap, the U-shaped buckle 6 is sleeved on the adjusting rod 3, and the opening end of the U-shaped buckle 6 penetrates through two through holes in the box body 1 at two sides of the adjusting rod 3 and then is closed through the bolt 7. The position of the adjusting rod 3 is locked through the U-shaped buckle 6, the adjusting rod 3 is prevented from moving, and therefore the size of the screening gap is locked, and screening of corresponding female shrimps or male shrimps is carried out. The open end of the U-shaped buckle 6 is closed by the bolt 7, so that the U-shaped buckle 6 is prevented from being separated from the box body 1 and losing the limiting locking effect on the adjusting rod 3.
In this embodiment, the handles 8 are installed at two ends of the box body 1, so that the handle 8 can be conveniently held for operation.
In this embodiment, the box 1 outside is equipped with the body 9 that can dismantle, can make box 1 float in aqueous through body 9, when the screening, can float box 1 in aqueous and filter, need not carry portable box 1 constantly, and it is more convenient to use.
In this embodiment, box 1 is square box, and four angle fillets in the inboard of box 1 set up, and the setting in fillet for 1 inner wall of box is more level and smooth, reduces the possibility that causes the damage to the freshwater shrimp.
In this embodiment, box 1 is the PE material, and inside packing has foamed plastic, is favorable to box 1 to float in aqueous, improves the convenience of screening.
In this embodiment, the screen bars 4 are filled with foaming agent, and both ends are sealed to help suspend the screen 2 in water.
By adopting the screening device, before shrimp is loaded, the box body 1 is firstly put into water, and due to the material of the box body 1 and the internal fillers, the floating body 9 and the internal fillers of the screen bars 4, under the action of buoyancy, one part of the box body 1 is on the water surface and the other part is in the water, thereby achieving the purpose of screening the shrimps in the water.
In the embodiment, two ends of the screen bars 4 are respectively and rotatably connected in circular holes arranged at two ends of the box body 1, and the diameter of a long shaft of the cross section of each screen bar 4 is equal to that of the circular hole; both ends of grating 4 are equipped with outside turn-ups 11 that sets up, and turn-ups 11 at both ends are spacing on box 1 with 4 axial of grating, have improved the stability of grating 4, avoid 4 axial displacement of grating.
In this embodiment, the adjusting rod 3 is a rectangular adjusting rod formed by connecting four rod members 10, and the connecting rods 5 at two ends are respectively connected to the rod members 10 at two ends of the adjusting rod 3. Through moving adjusting rod 3 is whole to drive the connecting rod 5 at both ends and rotate, realize the purpose of adjusting the grating clearance, simple structure, convenient operation. In this embodiment, the rod members 10 at the two ends are locked by two U-shaped buckles 6, respectively, so as to ensure the stability of locking.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides a device that female and male parent screened in is arranged in freshwater shrimp improved variety breeding which characterized in that: including box, screen cloth, regulation pole and locking device, the box link up from top to bottom, box lower extreme opening sets up the screen cloth, the screen cloth is including being a plurality of screen bars that linear array arranged and equidistant setting, the cross section of screen bar is oval, each the both ends of screen bar are rotated respectively and are connected at the box both ends, each arbitrary one end or the both ends of screen bar all are connected with a connecting rod, each the connecting rod is parallel to each other, each connecting rod one end is fixed on the screen bar, the other end rotates with the rotation axis that is on a parallel with screen bar central line and connects on the regulation pole, each rotation axis equals rather than the distance of screen bar central line that corresponds, through removing the regulation pole synchronous drive each the screen bar rotates in order to adjust adjacent two the screening clearance between the screen bar, works as after the screening clearance is adjusted to female shrimp or male shrimp screening clearance, through the locking device locking the regulation pole in on the box.
2. The device for screening male and female parents in fine breed breeding of freshwater shrimps as claimed in claim 1, characterized in that: when the long shafts of the screen bars are positioned on the same plane, the screening gaps are female shrimp screening gaps, and female shrimps leak out of the screening gaps; when the short shafts of the screen bars are positioned on the same plane, the screening gap is a male shrimp screening gap, and male shrimps leak out of the screening gap.
3. The device for screening male and female parents in fine breed breeding of freshwater shrimps according to claim 1, wherein the device comprises: the positions of any connecting rod are symmetrically arranged around a vertical plane when the screening gaps are female shrimp screening gaps and male shrimp screening gaps, and the positions of the adjusting rods are positioned at the same height position of the box body when the screening gaps are female shrimp screening gaps and male shrimp screening gaps; locking device includes that the U-shaped detains and bolt, it is in to adjust the pole when the screening clearance is female shrimp screening clearance or male shrimp screening clearance position, the U-shaped detain the cover in on adjusting the pole, just the open end that the U-shaped was detained passes to be located adjust the pole both sides pass through behind two through-holes on the box the bolt closure the open end.
4. The device for screening male and female parents in fine breed breeding of freshwater shrimps according to claim 1, wherein the device comprises: handles are mounted at two ends of the box body.
5. The device for screening male and female parents in fine breed breeding of freshwater shrimps according to claim 1, wherein the device comprises: the outer side of the box body is provided with a detachable floating body.
6. The device for screening male and female parents in fine breed breeding of freshwater shrimps according to claim 1, wherein the device comprises: the box is square, four inboard corner fillets of box set up.
7. The device for screening male and female parents in fine breed breeding of freshwater shrimps according to claim 1, wherein the device comprises: the box body is made of PE materials, and foam plastics are filled inside the box body.
8. The device for screening male and female parents in fine breed breeding of freshwater shrimps according to claim 1, wherein the device comprises: the interior of the screen bar is filled with foaming agent, and two ends of the screen bar are sealed.
9. The device for screening male and female parents in fine breed breeding of freshwater shrimps according to claim 1, wherein the device comprises: two ends of the screen bars are respectively and rotatably connected in circular holes formed in two ends of the box body, and the diameter of a long shaft of the cross section of each screen bar is equal to that of the circular hole; the two ends of the screen bar are provided with flanges which are arranged outwards, and the flanges at the two ends limit the screen bar on the box body in the axial direction.
10. The device for screening male and female parents in fine breed freshwater shrimp breeding according to claim 6, characterized in that: the adjusting rod is a rectangular adjusting rod formed by connecting four rod pieces, and the connecting rods at two ends are respectively connected to the rod pieces at two ends of the adjusting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310011901.XA CN115971025A (en) | 2023-01-05 | 2023-01-05 | A device that is arranged in female and male parent screening of freshwater shrimp fine breed seed selection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310011901.XA CN115971025A (en) | 2023-01-05 | 2023-01-05 | A device that is arranged in female and male parent screening of freshwater shrimp fine breed seed selection |
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| CN115971025A true CN115971025A (en) | 2023-04-18 |
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| CN202310011901.XA Pending CN115971025A (en) | 2023-01-05 | 2023-01-05 | A device that is arranged in female and male parent screening of freshwater shrimp fine breed seed selection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118142866A (en) * | 2024-05-10 | 2024-06-07 | 浙江明德建设有限公司 | Material crushing and screening equipment for highway construction and operation method |
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2023
- 2023-01-05 CN CN202310011901.XA patent/CN115971025A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118142866A (en) * | 2024-05-10 | 2024-06-07 | 浙江明德建设有限公司 | Material crushing and screening equipment for highway construction and operation method |
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