Real-time classification device for caged crayfishes in field

Abstract

The utility model discloses a real-time grading device for caged crayfish at the field end, which belongs to the field of crayfish caged catching tools and comprises a crayfish collecting box, a plurality of crayfish screening boxes, a plurality of crayfish collecting bags and a plurality of crayfish catching cages. Each shrimp screening box is internally provided with a plurality of screening strips which are arranged in parallel at intervals; the sieve strips are in an inclined state, a shrimp outlet is formed in the side of the lower end, located on the sieve strips, of the shrimp sieving box, and the bottom of the shrimp outlet is flush with the lower end of each sieve strip; the bag opening of each shrimp collecting bag is detachably connected to one shrimp outlet; the multiple shrimp screening boxes are arranged in a stacked mode, the distance between the screening strips in the shrimp screening box on the uppermost layer is the largest, and the distance between the screening strips is gradually reduced from top to bottom according to the screening specification. The shrimp collecting box is placed at the top of the uppermost shrimp screening box; a plurality of shrimp inlets are formed in the peripheral side of the shrimp collecting box, and one end of each shrimp catching cage is detachably connected with one shrimp inlet. According to the utility model, the problems of inconvenience in operation, high labor intensity and higher death rate of the crayfishes due to manual cage lifting for collecting the crayfishes and centralized screening can be solved.

Description

Technical Field

[0001] The utility model relates to the field of crayfish cage catching tools, and in particular to a real-time grading device for caged crayfish in a field. Background Art

[0002] Crayfish have a strong ability to migrate upstream and climb. Taking advantage of this characteristic, people typically harvest crayfish by placing lobster cages in aquaculture waters. Currently, the main method of collecting crayfish by cage capture is to manually lift the cages daily. The cages are scattered throughout the aquaculture fields, and manual lifting and collection requires moving the cages around to collect the crayfish. After collection, the crayfish are then collected and manually screened on a sorting table or a screening machine. This is very labor-intensive and inconvenient. Furthermore, due to various reasons such as long backlogs, a large number of crayfish entering the cages, or untimely collection, the mortality rate of crayfish during collection and screening is high. To address the above challenges, the present application provides a real-time grading device for field-level crayfish captured in cages. Summary of the Invention

[0003] The utility model provides a real-time grading device for cage-caught crayfish in a field, which solves the problems of inconvenient operation, high labor intensity and high mortality rate of crayfish in manually collecting crayfish with cages and centralized screening.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A device for real-time grading of caged crayfish at the farm, comprising a shrimp collecting box, a plurality of shrimp screening boxes, a plurality of shrimp collecting bags and a plurality of shrimp catching cages; each of the shrimp screening boxes is provided with a plurality of screen bars arranged parallel to each other and spaced apart; a plurality of the screen bars are in an inclined state, and the shrimp screening box is provided with a shrimp outlet on the side of the lower end of the screen bar, and the bottom of the shrimp outlet is flush with the lower end of each of the screen bars; the bag opening of each shrimp collecting bag is detachably connected to a shrimp outlet; a plurality of the shrimp screening boxes are stacked, and the screen bars in the shrimp screening box on the top layer have the largest spacing, and the spacing between the screen bars decreases one by one from top to bottom according to the screening specifications; the shrimp collecting box is placed on top of the shrimp screening box on the top layer, and the bottom of the shrimp collecting box is open; a plurality of shrimp inlets are provided on the circumference of the shrimp collecting box, and one end of each of the shrimp catching cages is detachably connected to a shrimp inlet.

[0006] Furthermore, the shrimp screening box includes a screening frame, a first screen bar base, a second screen bar base and several screen bars; the top and bottom of the screening frame are both set to openings; the bottom of the screening frame extends horizontally inward to form a frame-shaped flange, the first screen bar base is detachably placed on the top of one side of the frame-shaped flange of the screening frame, and the second screen bar base is detachably placed on the top of the other side opposite to the frame-shaped flange of the screening frame, and the height of the second screen bar base is higher than the first screen bar base; the first screen bar base and the second screen bar base are provided with a plurality of spaced and one-to-one corresponding screen bar slots on the opposite sides, and the end of each of the screen bars is embedded in the corresponding screen bar slot to form an inclined state; the screening frame is provided with a shrimp outlet on the side corresponding to the first screen bar base, and the bottom of the shrimp outlet is flush with the top of the first screen bar base.

[0007] Furthermore, a square connecting flange is extended outwardly from the peripheral side of the shrimp outlet, and the shrimp collecting bag is sleeved on the connecting flange and fixed by binding with a thin line.

[0008] Furthermore, the top of the connecting flange extends horizontally outward to open the opening of the shrimp collecting bag.

[0009] Furthermore, the shrimp outlets of the two adjacent shrimp screening boxes are staggered at 90 degrees.

[0010] Furthermore, the shrimp collecting box includes a shrimp collecting frame, and a shrimp inlet is provided on each side of the shrimp collecting frame. A connecting slot is provided on the side of each shrimp inlet. A connecting plug plate is provided at one end of each shrimp cage, and the connecting plug plate is set as a square frame structure. One end of the shrimp cage is detachably embedded in one of the connecting slots through the connecting plug plate, and the outlet end of the shrimp cage is connected to the corresponding shrimp inlet; the other end of the shrimp cage is placed in the field.

[0011] Furthermore, the bottom of the shrimp collecting frame extends horizontally inward to form a frame-shaped flange.

[0012] Furthermore, the lower end surfaces of the frame-shaped flanges at the bottom of the screening frame and the shrimp collecting frame are both protruding downward with limiting flanges, and the size and shape of the limiting flanges match the inner walls of the opening ends of the screening frame and the shrimp collecting frame.

[0013] The beneficial effects of the utility model are:

[0014] 1) When the utility model is in use, shrimp screening boxes, shrimp collecting boxes and shrimp catching cages are arranged in the breeding rice fields. The crayfish have the habit of swimming upstream and climbing up to migrate. After entering the shrimp catching cage, the crayfish climb up the shrimp collecting box through the cage head, and then fall into the inclined screen bars of each layer of the shrimp screening box for real-time classification. Crayfish of different sizes slide into shrimp collecting bags of different sizes, which is convenient for collecting and screening the crayfish caught in the cage, and can also avoid the long backlog time of centralized screening that causes the death of some shrimps in the cage, thereby reducing the mortality rate of the crayfish caught in the cage. When harvesting, it is only necessary to collect the shrimps in the shrimp collecting bags of the same size and pack them in boxes for sale, which greatly reduces the labor intensity of collecting and screening the crayfish in the cage.

[0015] 2) The first screen bar base, the second screen bar base and the screen bars in the shrimp screening box are all detachable and can be disassembled, cleaned and recycled after use, saving costs.

[0016] 3) The top of the connecting flange at the shrimp outlet of the shrimp screening box extends horizontally outward, so that the bag opening of the shrimp bag is opened, allowing the crayfish to enter the bag smoothly.

[0017] 4) The shrimp outlets of the two adjacent layers of the shrimp screening box are staggered at 90 degrees. This arrangement allows the shrimp collection bags of each layer to be staggered, avoiding the overlapping and squeezing of the shrimp collection bags of the two adjacent layers, which may cause the crayfish to lack oxygen and lose their activity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a further detailed description of the specific embodiments of the present invention with reference to the accompanying drawings, wherein:

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the shrimp screening boxes of the utility model when they are stacked;

[0021] Figure 3 The utility model is a three-dimensional shrimp screening box Figure 1 ;

[0022] Figure 4 The utility model is a three-dimensional shrimp screening box Figure 2 ;

[0023] Figure 5 It is a three-dimensional diagram of the middle screen bar, the first screen bar base and the second screen bar base of the utility model;

[0024] Figure ID:

[0025] 1-shrimp collecting box, 2-shrimp screening box, 3-shrimp collecting bag, 4-shrimp catching cage, 11-shrimp inlet, 12-shrimp collecting frame, 13-connecting slot, 21-screen bar, 22-shrimp outlet, 23-screening frame, 24-first screen bar base, 25-second screen bar base, 26-frame flange, 27-connecting flange, 28-limiting flange. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. When a component is referred to as being "set in the middle", it does not only mean being set in the exact middle position, but also means being within the range defined by the middle as long as both ends are not set. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Reference Figures 1 to 5As shown, a real-time grading device for caged crayfish at a field headquarter is provided, comprising a shrimp collecting box 1, a plurality of shrimp screening boxes 2, a plurality of shrimp collecting bags 3 and a plurality of shrimp traps 4; each of the shrimp screening boxes 2 is provided with a plurality of screen bars 21 arranged parallel to each other and spaced apart; the plurality of screen bars 21 are in an inclined state, the shrimp screening box 2 is provided with a shrimp outlet 22 on the side of the lower end of the screen bars 21, and the bottom of the shrimp outlet 22 is flush with the lower end of each of the screen bars 21; the bag opening of each shrimp collecting bag 3 is detachably connected to one of the shrimp outlets 22; the plurality of shrimp screening boxes 2 are stacked, and the spacing between the screen bars 21 in the shrimp screening box 2 on the top layer is the largest, and the spacing between the screen bars 21 decreases one by one from top to bottom according to the screening specifications; the shrimp collecting box 1 is placed on the top of the shrimp screening box 2 on the top layer, and the bottom of the shrimp collecting box 1 is open; a plurality of shrimp inlets 11 are provided on the circumference of the shrimp collecting box 1, and one end of each of the shrimp traps 4 is detachably connected to one of the shrimp inlets 11. When the present invention is in use, several layers of shrimp screening boxes 2 and shrimp collecting boxes 1 are arranged from bottom to top in the rice paddy, and shrimp traps 4 are installed at the shrimp inlet 11 of the shrimp collecting box 1, and shrimp collecting bags 3 are installed at the shrimp outlet of the shrimp screening box 2. After complete installation, the device can automatically trap crayfish and classify them in real time. By utilizing the habit of crayfish with strong ability to migrate upstream and climb, the crayfish enter the shrimp trap 4 and climb up the shrimp collecting box 1 through the cage head, and then fall into the inclined screen bars 21 of each layer of the shrimp screening box 2 for real-time classification. Crayfish of different sizes crawl into the shrimp collecting bags 3 of different sizes, which is convenient for collecting and screening the captured crayfish, and can also avoid the long backlog time of centralized screening that causes the death of some caged shrimps, thereby reducing the mortality rate of caged crayfish. When harvesting, it is only necessary to collect the shrimps in the shrimp collecting bags of the same size and pack them in boxes for sale, which greatly reduces the labor intensity of collecting and screening the caged crayfish.

[0030] Please refer to Figures 3 to 5As shown, the shrimp screening box 2 includes a screening frame 23, a first screen bar base 24, a second screen bar base 25 and a plurality of screen bars 21; the top and bottom of the screening frame 23 are both set to be openings; the bottom of the screening frame 23 extends horizontally inward to form a frame-shaped flange 26, the first screen bar base 24 is detachably placed on the top of one side of the frame-shaped flange 26 of the screening frame 23, and the second screen bar base 25 is detachably placed on the top of the other side opposite to the frame-shaped flange 26 of the screening frame 23, and the height of the second screen bar base 25 is higher than the first screen bar base 24; a plurality of intervally arranged and one-to-one corresponding screen bar slots are provided on the opposite side of the first screen bar base 24 and the second screen bar base 25, and the end of each screen bar 21 is embedded in the corresponding screen bar slot to form an inclined state; a shrimp outlet 22 is provided on the side of the screening frame 23 corresponding to the first screen bar base 24, and the bottom of the shrimp outlet 22 is flush with the top of the first screen bar base 24. The first screen bar base 24, the second screen bar base 25, and the screen bars 21 in the shrimp screening box 2 are all detachable and can be removed for cleaning after use, allowing for recycling and cost savings. A square connecting flange 27 extends outward from the periphery of the shrimp outlet 22. The shrimp collecting bag 3 is fitted onto the connecting flange 27 and secured by a thin wire tie. The top of the connecting flange 27 extends horizontally outward, allowing the bag opening of the shrimp collecting bag 3 to open, allowing the crayfish to enter the bag smoothly. In this embodiment, the screening frame 23 is formed by hot-melt-bonding PVC boards of 3-4 mm thickness to form a square frame 30 cm long and 10 cm high. The connecting flange 27 is made of block structures of the same material, which are bonded and spliced together. The frame-shaped flange 26 at the bottom is 2.5-3.0 cm wide, and one side of the frame is provided with a shrimp outlet 20 cm long and 8 cm high. The screen bar 21 is a stainless steel round tube or a glass fiber polypropylene round tube with a diameter of 5-6 mm. The first screen bar base 24 and the second screen bar base 25 are both rubber strips with semicircular grooves at different intervals. The first screen bar base is 1 cm high and the second screen bar base is 3 cm high. The spacing between adjacent screen bars 21 can be designed according to the specifications of crayfish sold on the market.

[0031] Please refer to Figure 1 and Figure 2 As shown, when installing the shrimp screening box 2 in the utility model, the shrimp outlets of the two adjacent layers of the shrimp screening box 2 can be staggered at 90 degrees. This arrangement allows the shrimp collecting bags 3 of each layer to be staggered, avoiding the upper and lower adjacent layers of shrimp collecting bags 3 overlapping and squeezing each other, causing the crayfish to lack oxygen and lose their activity.

[0032] Please continue to refer to Figure 1As shown, the shrimp collection box 1 includes a shrimp collection frame 12, which is entirely made of sealed PVC panels. The shape of the shrimp collection frame 12 is the same as that of the screening frame 12. Each shrimp collection frame 12 is formed with a shrimp inlet 11 on each side. The length and height of the shrimp inlet 11 are 8 to 10 centimeters, making it compatible with conventional shrimp traps 4 on the market. Each shrimp inlet 11 is provided with a connecting slot 13 on the side. Each shrimp trap 4 is provided with a connecting plate at one end. The connecting plate is a square frame structure. One end of the shrimp trap 4 is tied to the connecting plate with a thin wire and removably inserted into a connecting slot 13, thereby connecting the outlet of the shrimp trap 4 to the corresponding shrimp inlet 11. Existing shrimp traps come with a square iron frame, which can be directly inserted into the connecting slot 13 as a connecting plate. The other end of each shrimp trap 4 is placed in the field to guide crayfish from the trap to the shrimp collection box 2.

[0033] Please refer to Figure 4 As shown, in order to achieve matching and docking between the shrimp collecting box 1 and the shrimp screening box 2, the bottom of the shrimp collecting frame 12 extends horizontally inward to form a frame-shaped flange 26 that is the same as the bottom of the shrimp screening box, and the lower end surfaces of the frame-shaped flange 26 at the bottom of the screening frame 23 and the shrimp collecting frame 12 are both protruding downward with a limiting flange 28. The size and shape of the limiting flange 28 match the inner wall of the open end of the screening frame 23 and the shrimp collecting frame 12, so that the shrimp collecting frame 12 can be stacked on the shrimp screening box 23.

[0034] When installing this device, it's important to note that the shrimp inlet 11 on the side of the shrimp collecting frame 12 corresponding to the shrimp outlet of the topmost screening frame 23 does not need to be equipped with a lobster trap 4. This prevents crayfish from falling through the shrimp inlet and directly crawling into the shrimp outlet of the adjacent screening frame 23, thereby preventing screening. The last layer can be equipped with an additional shrimp collecting frame 12 or a screening frame 23 without the screen bars 21 to increase the overall height. After the device is installed, starting the next day, you can collect crayfish from each layer of shrimp collection bags 3 each morning. Later, you can use your own experience to determine the shrimp collection cycle.

[0035] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be included in the scope of the technical solution of the present invention.

Claims

1. A real-time grading device for caged crayfish in the field, characterized in that: It includes a shrimp collecting box, several shrimp screening boxes, several shrimp collecting bags and several shrimp catching cages; each of the shrimp screening boxes is provided with several parallel and spaced screen bars; several of the screen bars are in an inclined state, and the shrimp screening box is provided with a shrimp outlet on the side of the lower end of the screen bar, and the bottom of the shrimp outlet is flush with the lower end of each of the screen bars; the bag opening of each shrimp collecting bag is detachably connected to one of the shrimp outlets; several of the shrimp screening boxes are stacked, and the screen bars in the shrimp screening box on the top layer have the largest spacing, and the spacing between the screen bars decreases one by one from top to bottom according to the screening specifications; the shrimp collecting box is placed on the top of the shrimp screening box on the top layer, and the bottom of the shrimp collecting box is open; several shrimp inlets are provided on the circumference of the shrimp collecting box, and one end of each of the shrimp catching cages is detachably connected to one of the shrimp inlets.

2. The real-time grading device for caged crayfish according to claim 1, characterized in that: The shrimp screening box includes a screening frame, a first screen bar base, a second screen bar base and several screen bars; the top and bottom of the screening frame are both set to openings; the bottom of the screening frame extends horizontally inward to form a frame-shaped flange, the first screen bar base is detachably placed on the top of one side of the frame-shaped flange of the screening frame, and the second screen bar base is detachably placed on the top of the other side opposite to the frame-shaped flange of the screening frame, and the height of the second screen bar base is higher than the first screen bar base; the first screen bar base and the second screen bar base are provided with a plurality of spaced and one-to-one corresponding screen bar slots on the opposite side, and the end of each screen bar is embedded in the corresponding screen bar slot to form an inclined state; the screening frame is provided with a shrimp outlet on a side corresponding to the first screen bar base, and the bottom of the shrimp outlet is flush with the top of the first screen bar base.

3. The real-time grading device for caged crayfish according to claim 2, characterized in that: A square connecting flange is extended outwardly from the peripheral side of the shrimp outlet, and the shrimp collecting bag is sleeved on the connecting flange and fixed by tying with a thin line.

4. The real-time grading device for caged crayfish according to claim 3, characterized in that: The top of the connecting flange extends horizontally outwards to open the bag opening of the shrimp collecting bag.

5. The real-time grading device for caged crayfish according to claim 4, characterized in that: The shrimp outlets of the two adjacent shrimp screening boxes are staggered at 90 degrees.

6. The real-time grading device for caged crayfish according to claim 2, characterized in that: The shrimp collecting box includes a shrimp collecting frame, and a shrimp inlet is provided on each of the four sides of the shrimp collecting frame. A connecting slot is provided on the side of each shrimp inlet. A connecting plug plate is provided at one end of each shrimp trap, and the connecting plug plate is configured as a square frame structure. One end of the shrimp trap is detachably embedded in a connecting slot through the connecting plug plate, and the outlet end of the shrimp trap is connected to the corresponding shrimp inlet; the other end of the shrimp trap is placed in the field.

7. The real-time grading device for caged crayfish according to claim 6, characterized in that: The bottom of the shrimp collecting frame extends horizontally inward to form a frame-shaped flange.

8. The real-time grading device for caged crayfish according to claim 6, characterized in that: The lower end surfaces of the frame-shaped flanges at the bottom of the screening frame and the shrimp collecting frame are both protruded downwardly with limiting flanges, and the size and shape of the limiting flanges match the inner walls of the opening ends of the screening frame and the shrimp collecting frame.

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