CN114868694A - Separation device for collected roes and fish larvae - Google Patents

Separation device for collected roes and fish larvae Download PDF

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Publication number
CN114868694A
CN114868694A CN202210643224.9A CN202210643224A CN114868694A CN 114868694 A CN114868694 A CN 114868694A CN 202210643224 A CN202210643224 A CN 202210643224A CN 114868694 A CN114868694 A CN 114868694A
Authority
CN
China
Prior art keywords
box body
screen
collected
reel
roes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210643224.9A
Other languages
Chinese (zh)
Inventor
方弟安
薛向平
徐东坡
蒋书伦
张桂宁
王小豪
彭云鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences
Original Assignee
Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences filed Critical Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences
Priority to CN202210643224.9A priority Critical patent/CN114868694A/en
Publication of CN114868694A publication Critical patent/CN114868694A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
    • A01K61/95—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination specially adapted for fish
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/04—Stationary flat screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663—Multi-layer screening surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/308—Lighting for domestic or personal use for aquaria
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The application relates to the technical field of water body biological sample analysis equipment, specifically discloses a separator after roe, young fish collection, and the box includes: at least two layers of screens are arranged on the side wall of the upper part of the box body; the middle part of the box body is detachably connected to the lower end of the upper part of the scroll box body, and the side wall of the middle part of the scroll box body is provided with an electrodeless dimming lamp belt for irradiating the scroll screen; and a chassis part detachably connected to a lower end of the middle part of the reel case, and the reel chassis part can accommodate an upper part of the reel case so that the reel screen can be immersed into the inside of the reel chassis part. With the arrangement, the separation device for the collected fish eggs and 77 the young fishes can solve the problem of identifying the development period of the fish eggs and the young fishes through the dissecting mirror on the basis of ensuring that the fish eggs and the young fishes can be effectively separated after being collected.

Description

Separation device for collected roes and fish larvae
Technical Field
The invention relates to the technical field of water body biological sample analysis equipment, in particular to a separation device for collected fish eggs and fish larvae.
Background
Besides the problem of fishing of large phytoplankton and large phytoplankton in the field sampling process, the screening and sorting of samples are also a delicate matter, samples cannot be sorted in the traditional method due to a plurality of limitation factors in the process of picking the collected samples, and particularly roes and newly hatched young fishes exist in a water body transparently and are difficult to distinguish by naked eyes.
The larval fish can be sorted in a culture dish after developing to a certain degree, so as to be identified by morphological analysis. Since the roe itself is small, and becomes transparent and not easy to distinguish after absorbing water, it is not clear whether the roe exists in the collected sample, in the prior art, the roe is generally sorted by the alcohol-treated roe to become milk white, but the alcohol-treated roe can only be counted and identified by molecule, but the defect is that the developmental period can not be identified by a dissecting mirror.
Therefore, how to identify the developmental period of the roe and the larval fish through the dissecting mirror on the basis of ensuring that the roe and the larval fish can be effectively separated after being collected becomes an important technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a separation device for collected fish eggs and young fishes, which can solve the problem of identifying the development period of the fish eggs and the young fishes through an anatomical lens on the basis of ensuring that the fish eggs and the young fishes can be effectively separated after being collected.
The invention provides a separation device for collected fish eggs and young fishes, which comprises a box body with an opening at the upper end, wherein the box body comprises:
the screen cloth winding and unwinding device comprises a box body, wherein at least two layers of screen cloth are arranged on the side wall of the upper part of the box body, a reel which is rotatably arranged on the side wall of the upper part of the box body and used for winding and unwinding the screen cloth is connected to the first end of each screen cloth, a locking mechanism used for locking and releasing the reel is arranged on the upper part of the box body, a fixing structure used for fixing the second end of the screen cloth is arranged on the side, opposite to the side wall of the upper part of the box body, provided with the reel, and a handle used for rotating the reel is arranged at one end of the reel;
the middle part of the box body is detachably connected to the lower end of the upper part of the box body, and an electrodeless dimming lamp belt for irradiating the screen is arranged on the side wall of the middle part of the box body;
and a bottom chassis part detachably connected to a lower end of the middle part of the case body, and capable of receiving the upper part of the case body so that the screen can be immersed in the inside of the bottom chassis part.
Preferably, be provided with on the lateral wall on box upper portion with the slide that two sides of screen cloth correspond, two sides of screen cloth all be provided with the resistant edging of flexibility of slide looks adaptation.
Preferably, the second end of screen cloth is provided with the steel wire, just the steel wire is followed the limit of the second end of screen cloth extends and with the limit of the second end of screen cloth is connected, the end of slide sets up in being used for the card to put the draw-in groove of steel wire.
Preferably, the locking mechanism comprises ratchet wheels arranged on the reels and pawls movably connected to the side walls of the upper portion of the box body, the pawls can extend into gaps between teeth of the ratchet wheels when moving to the first position so that the ratchet wheels can only rotate in one direction, and the pawls can be disengaged from the ratchet wheels when moving to the second position.
Preferably, the upper part of the box body is connected with the middle part of the box body, and the middle part of the box body is connected with the chassis part through buckles.
Preferably, the mesh size of each of said screens is different.
Preferably, an arc notch structure is arranged on a side wall opposite to the side wall of the upper part of the box body, which is provided with the reel.
Preferably, a USB plug adapted to an external USB power socket is disposed at an end of a power line of the stepless dimming lamp strip.
Preferably, the box is a transparent box.
Preferably, the length of the box body is 30 cm, the width of the box body is 20 cm, the height of the upper part of the box body is 8 cm, the height of the middle part of the box body is 10 cm, and the height of the chassis part is 8 cm.
The invention provides a separating device for collected fish eggs and young fishes, which comprises a box body with an opening at the upper end, wherein the box body comprises three parts, namely an upper part of the box body, a middle part of the box body and a chassis part, at least two layers of screen meshes are arranged on the side wall of the upper part of the box body, a first end of each screen mesh is connected with a reel which is rotatably arranged on the side wall of the upper part of the box body and is used for winding and unwinding the screen meshes, a locking mechanism used for locking and releasing the reel is arranged on the upper part of the box body, a fixing structure used for fixing a second end of the screen mesh is arranged on the side opposite to the side wall of the upper part of the box body on which the reel is arranged, and a handle used for rotating the reel is arranged at one end of the reel. The box middle part detachably connects the lower extreme on box upper portion, is provided with the electrodeless dimming lamp area that is used for shining the screen cloth on the lateral wall in box middle part. The bottom plate part is detachably connected to the lower end of the middle part of the box body, and the bottom plate part can accommodate the upper part of the box body so that the screen can be immersed in the inner part of the bottom plate part. When the separation device provided by the invention is used, firstly, which layer of screen is used for carrying out first treatment on a sample is determined according to the amount of impurities in the collected sample, the screen which is determined to be used is pulled out from the reel and is fixed on the fixing structure at the upper part of the box body, then, the reel is adjusted, and further, the looseness of the screen is adjusted, so that the sorting requirement is met. The collected sample was then poured evenly onto the screen. Then put the upper part of the box body into the water-containing chassis part, so that the sample is more uniformly spread on the screen. And then all parts of the box body are assembled together, and the brightness of the stepless dimming lamp belt is adjusted, so that the brightness just meets the requirement of distinguishing roes and fish larvae. Therefore, the separation device for collected fish eggs and young fishes can solve the problem of identifying the development period of the fish eggs and young fishes through the dissecting mirror on the basis of ensuring that the fish eggs and young fishes can be effectively separated after being collected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a separating apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first side structure of the box body in the embodiment of the present invention;
FIG. 3 is a schematic diagram of a second side structure of the case according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a third side structure of the case according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a chassis portion of the case in the embodiment of the present invention;
FIG. 6 is a schematic view of a reel structure according to an embodiment of the present invention;
FIG. 7 is a schematic view of a locking mechanism in an embodiment of the present invention;
FIG. 8 is a schematic diagram of a first layer of a screen in accordance with an embodiment of the present invention;
fig. 9 is a schematic diagram of a second layer of screen in the embodiment of the invention.
In fig. 1-9:
1. a guide shaft; 2. a reel; 3. an electrodeless dimming lamp strip; 4. a lamp strip power line; 5. buckling; 6. a chassis portion; 7. a handle; 8. a slideway; 9. a waterproof lampshade; 10. a locking mechanism; 11. a pawl; 12. a ratchet wheel; 13. a card slot; 14. a notch structure; 15. a handle; 16. a first layer of screen; 17. and a second layer of screen mesh.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The purpose of the present embodiment is to provide a separation device after collecting roes and fish larvae, which can solve the problem that the roes and fish larvae can be identified by a dissecting mirror during their development period on the basis of ensuring that the roes and fish larvae can be effectively separated after being collected.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to fig. 1-9, the separating device for collected fish eggs and young fish provided in this embodiment includes a box body with an open upper end, the box body sequentially includes a box body upper portion, a box body middle portion and a chassis portion 6 from top to bottom, and the three portions are detachably connected, in this embodiment, the three portions are detachably connected together by providing buckles 5 on two adjacent portions and by the buckles 5.
At least two layers of screens are arranged on the side wall of the upper part of the box body, in the embodiment, the box body specifically comprises a first layer of screen 16 and a second layer of screen 17, the mesh of the first layer of screen 16 can be 1 mm in specification, and the mesh of the second layer of screen 17 can be 2 mm in specification, so that which kind of screen is used can be selected according to the sample condition, or the separation can be carried out after two screens with different meshes are filtered according to the actual condition.
The first end of each screen is connected with a reel 2 which is rotatably arranged on the side wall of the upper part of the box body and is used for winding and unwinding the screen, a locking mechanism 10 used for locking and releasing the reel 2 is arranged on the upper part of the box body, and a fixing structure used for fixing the second end of the screen is arranged on the side opposite to the side wall of the upper part of the box body, which is provided with the reel 2.
Spool 2 is used for coiling the screen cloth, specifically can install spool 2 on the lateral wall on box upper portion through the bearing, is provided with slide 8 on the inner wall on box upper portion, is provided with the rectangular shape through-hole that supplies the screen cloth to get into on the lateral wall that box upper portion and 8 initiating terminals of slide correspond, and 8 initiating terminals of slide position are provided with guiding axle 1, and when 2 release screen cloths of spool, the screen cloth is at first through the sliding way 8 through guiding axle 1 again, fixes the screen cloth through the terminal fixed knot structure of sliding way 8 at last. In order to facilitate the operation of rotating the reel 2, the reel 2 may be provided with a handle 15.
The box body middle part is detachably connected to the lower end of the upper part of the box body, the side wall of the box body middle part is provided with an electrodeless dimming lamp belt 3 used for irradiating the screen, and a waterproof lampshade 9 can be arranged on the electrodeless dimming lamp belt 3 in order to prevent water from entering the lamp belt to cause short circuit.
A bottom plate portion 6 is detachably attached to the lower end of the middle portion of the cabinet, and the bottom plate portion 6 can receive the upper portion of the cabinet so that the screen can be immersed in the inside of the bottom plate portion 6.
When using the separator that this embodiment provided, at first according to the impurity of gathering the sample how much decide which layer of screen cloth to use and carry out the first time processing to the sample, will confirm that the screen cloth that uses is pulled out from spool 2 to fix on the fixed knot who box upper portion constructs, then adjust spool 2, and then adjust the looseness of screen cloth, satisfy the letter sorting needs. The collected sample was then poured evenly onto the screen. Then the upper part of the box body is placed into the water-containing chassis part 6, so that the sample is more uniformly spread on the screen. Then, all parts of the box body are assembled together, and the brightness of the stepless dimming lamp belt 3 is adjusted, so that the brightness just meets the requirement of distinguishing roes and fish larvae. Therefore, the separation device after collection of roes and fish larvae provided by the embodiment can solve the problem of identifying the development period of roes and fish larvae through the dissecting mirror on the basis of ensuring that roes and fish larvae can be effectively separated after collection.
In order to prevent the problem that the side of screen cloth appears wearing and tearing when screen cloth and slide 8 cooperation, all be provided with the flexible resistant edging with slide 8 looks adaptation at two sides of screen cloth, for example, can be provided with nylon strip or flexible wear-resisting rubber strip etc. on the both sides limit of screen cloth.
The second end of the screen is provided with a steel wire, the steel wire extends along the edge of the second end of the screen and is connected with the edge of the second end of the screen, and the fixing structure can be a clamping groove 13 which is arranged on the slideway 8 and used for clamping the steel wire.
The locking mechanism 10 comprises ratchet wheels 12 arranged on the reels 2 and pawls 11 movably connected to the side walls of the upper part of the box body, wherein the pawls 11 can extend into gaps between the teeth of the ratchet wheels 12 when moving to the first position so that the ratchet wheels 12 can only rotate in one direction, and the pawls 11 can be disengaged from the ratchet wheels 12 when moving to the second position.
Specifically, the pawl 11 is disposed on the side wall of the upper portion of the housing in a vertically displaceable manner, and when the pawl 11 slides upward, it is disengaged from the ratchet 12, and moves downward to extend into the backlash of the ratchet 12.
In order to facilitate the operation, an arc notch structure 14 is arranged on the side wall opposite to the side wall on which the reel 2 is arranged at the upper part of the box body, and thus, an operator can stretch a hand into the box body through the notch structure 14 to operate.
In addition, the front and back of the box body in the embodiment can be provided with a handle 7 which is convenient to lift and pull, and the carrying is convenient. The USB interface is used at one end of the lamp strip power line 4 of the electrodeless dimming lamp strip 3, so that the power utilization is safe, different charging adapters can be matched conveniently, and the use is more convenient.
In this embodiment, the box is preferably transparent box, makes things convenient for the observation. The length of the box may be 30 cm and the width 20 cm, the height of the upper part of the box may be 8 cm, the height of the middle part of the box may be 10 cm and the height of the chassis part 6 may be 8 cm. So set up, the size of box is moderate, convenient operation.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the invention comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a separator after roe, young fish collection which characterized in that, includes upper end open-ended box, the box includes:
the screen cloth winding and unwinding device comprises a box body, wherein at least two layers of screen cloth are arranged on the side wall of the upper part of the box body, a reel which is rotatably arranged on the side wall of the upper part of the box body and used for winding and unwinding the screen cloth is connected to the first end of each screen cloth, a locking mechanism used for locking and releasing the reel is arranged on the upper part of the box body, a fixing structure used for fixing the second end of the screen cloth is arranged on the side, opposite to the side wall of the upper part of the box body, provided with the reel, and a handle used for rotating the reel is arranged at one end of the reel;
the middle part of the box body is detachably connected to the lower end of the upper part of the box body, and an electrodeless dimming lamp belt for irradiating the screen is arranged on the side wall of the middle part of the box body;
and a bottom chassis part detachably connected to a lower end of the middle part of the case body, and capable of receiving the upper part of the case body so that the screen can be immersed in the inside of the bottom chassis part.
2. The device for separating the collected roes and the collected larvae of the fishes as claimed in claim 1, wherein the side wall of the upper part of the box body is provided with slideways corresponding to the two side edges of the screen, and the two side edges of the screen are both provided with flexible edge-resistant edges matched with the slideways.
3. The device for separating the collected roes and the collected larvae of the fishes in claim 2, wherein the second end of the screen is provided with a steel wire, the steel wire extends along the edge of the second end of the screen and is connected with the edge of the second end of the screen, and the tail end of the slideway is arranged in a clamping groove for clamping the steel wire.
4. The device for separating roes and larvae after collection, according to claim 1, wherein said locking mechanism comprises a ratchet wheel disposed on each of said reels, and a pawl movably connected to a sidewall of an upper portion of said housing, wherein said pawl is capable of extending into a gap between teeth of said ratchet wheel when moved to a first position, such that said ratchet wheel is capable of rotating only in one direction, and said pawl is capable of disengaging from said ratchet wheel when moved to a second position.
5. The device for separating the collected roes and the collected larvae of the fishes as claimed in claim 1, wherein the upper part of the box body and the middle part of the box body and the bottom plate are connected by a buckle.
6. The device for separating roes and larvae after harvesting of fish according to claim 1, wherein the mesh size of each of said screens is different.
7. The device for separating the collected roes and the collected larvae of the fishes in claim 1, wherein an arc notch structure is arranged on the side wall opposite to the side wall of the upper part of the box body provided with the reel.
8. The device for separating the collected roes and the collected larvae of the fishes in claim 1, wherein a USB plug adapted to an external USB power socket is arranged at the end of the power line of the stepless dimming lamp strip.
9. The device for separating roes and larvae after collection according to claim 1, wherein the box body is a transparent box body.
10. The device for separating roes and larvae after collection according to claim 1, wherein the box body has a length of 30 cm and a width of 20 cm, the upper part of the box body has a height of 8 cm, the middle part of the box body has a height of 10 cm, and the bottom plate has a height of 8 cm.
CN202210643224.9A 2022-06-09 2022-06-09 Separation device for collected roes and fish larvae Pending CN114868694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210643224.9A CN114868694A (en) 2022-06-09 2022-06-09 Separation device for collected roes and fish larvae

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210643224.9A CN114868694A (en) 2022-06-09 2022-06-09 Separation device for collected roes and fish larvae

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Publication Number Publication Date
CN114868694A true CN114868694A (en) 2022-08-09

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Application Number Title Priority Date Filing Date
CN202210643224.9A Pending CN114868694A (en) 2022-06-09 2022-06-09 Separation device for collected roes and fish larvae

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115868435A (en) * 2022-11-08 2023-03-31 西南大学 Tropical fish hatching box and hatching method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115868435A (en) * 2022-11-08 2023-03-31 西南大学 Tropical fish hatching box and hatching method thereof

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