Sorting device for lobsters according to sizes

By setting up multiple sorting zones and rotation control components in the lobster sorting device, the problem of smaller lobsters being mixed in during lobster sorting was solved, achieving efficient size sorting.

CN121176499APending Publication Date: 2025-12-23JIUJIANG ZEHAI ECOLOGICAL AGRICULTURE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511179431.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-22
Publication Date
2025-12-23

AI Technical Summary

Technical Problem

When sorting large quantities of lobsters, existing lobster sorting devices often result in smaller lobsters being mixed in with larger ones, leading to poor sorting results.

Method used

A sorting device was designed, comprising first, second, and third sorting areas set at equal angles, with the gap between adjacent sorting rollers increasing sequentially. The rotating and oscillating of the circular plate is achieved through a rotation control component and a slot structure, ensuring that lobsters stay and are sorted for a long time in each area.

Benefits of technology

This improves the accuracy and efficiency of lobster sorting, ensuring that lobsters of different sizes can be collected separately and avoiding confusion.

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Abstract

The invention discloses a lobster size sorting device which solves the problem that lobsters cannot stay in a first-stage grading device for a long time, and the sorting accuracy is influenced. The lobster size sorting device comprises a base, a supporting frame is fixedly installed at the top end of the base, and a lobster sorting assembly is arranged on one side of the supporting frame; the lobster sorting assembly is located above the base, a receiving box is placed below the lobster sorting assembly, the lobster sorting assembly comprises a circular plate arranged on one side of the supporting frame, and a first sorting area, a second sorting area and a third sorting area are sequentially arranged on the side, away from the supporting frame, of the circular plate at equal angles; the first sorting area, the second sorting area and the third sorting area are all composed of sorting rollers which are evenly arranged. According to the lobster sorting device, in the working process, the first sorting area, the second sorting area and the third sorting area are all composed of the sorting rollers which are evenly arranged, and lobsters of different sizes are sorted.
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Description

Technical Field

[0001] This invention belongs to the field of lobster sorting technology, specifically a sorting device for lobsters by size. Background Technology

[0002] According to the patent document with authorization announcement number "CN220859214U" and invention title "A Device for Grading Crayfish by Size," the description states that: To address the issue of crayfish easily clumping together within the feed inlet, a vibrator is installed inside the feed inlet, and a long strip-shaped gap is provided on the end face connecting the feed inlet to the cylindrical body. This allows the crayfish to pass through the long strip-shaped gap evenly under the action of the vibrator, effectively preventing piling up and improving sorting accuracy. The device uses parallel stainless steel cylinders with different rotatable spacing installed at an angle. Combined with gravity, the crayfish slide slowly downwards along the cylinders under the action of transmission. When the size of the crayfish is smaller than the gap width of the cylinders, it will pass through the cylinders and be collected. However, the following drawbacks still exist:

[0003] During the sorting process of lobsters, the lobsters move downwards along the inclined sorting equipment. During the movement, they are sorted into different sizes by parallel stainless steel cylinders that can rotate at different intervals and are installed at an inclined angle. However, when there are a large number of lobsters, they cannot stay in one of the grading devices for a long time. This may cause smaller lobsters to be mixed with larger lobsters and enter the next grading device, resulting in poor sorting effect. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a sorting device for lobster size, which effectively solves the problem that lobsters cannot stay in one of the primary grading devices for a long time, thus affecting the sorting accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sorting device for lobster size, comprising a base, a support frame fixedly installed on the top of the base, a lobster sorting component disposed on one side of the support frame, the lobster sorting component being located above the base, and a receiving box placed below the lobster sorting component;

[0006] The lobster sorting component includes a circular plate set on one side of a support frame. On the side of the circular plate away from the support frame, a first sorting area, a second sorting area, and a third sorting area are arranged at equal angles. Each of the first, second, and third sorting areas is composed of sorting rollers evenly arranged. The distance between two adjacent sorting rollers in the first sorting area, the distance between two adjacent sorting rollers in the second sorting area, and the distance between two adjacent sorting rollers in the third sorting area increase sequentially, thereby completing the sorting of lobsters of different sizes.

[0007] A rotation control component is installed on the side of the support frame away from the circular plate. The rotation control component is used to drive the circular plate to rotate in two modes. The first mode controls the circular plate to rotate 120 degrees to adjust the sorting position. The second mode controls the circular plate to swing back and forth in a small range at one of the sorting positions to facilitate the sorting of lobsters.

[0008] Preferably, a rotating shaft is coaxially mounted on the side of the circular plate near the support frame. The rotating shaft is rotatably connected to the support frame. Three first slots are equally spaced at the end of the rotating shaft away from the circular plate. A second slot is equally spaced at the side of the circular plate near the support frame. The three second slots correspond to the positions of the first sorting area, the second sorting area, and the third sorting area, respectively.

[0009] Preferably, the rotation control assembly includes a mounting frame fixedly installed on the side of the support frame away from the circular plate, a rotating cylinder rotatably mounted on the mounting frame, the rotating cylinder being coaxially arranged with the circular plate, a gear ring fixedly mounted on the outer side of the rotating cylinder, a gear meshing with one side of the gear ring, the gear being fixedly connected to the output shaft of the drive motor, and the drive motor being fixedly mounted on the mounting frame.

[0010] Preferably, the rotating cylinder is provided with a large-angle rotating component. After the large-angle rotating component is connected with the first slot, it drives the circular plate to rotate and adjust the sorting position. A small-angle swing component is provided between the rotating cylinder and the support frame. After the small-angle swing component is connected with the second slot, it drives the circular plate to swing back and forth at one of the sorting positions.

[0011] Preferably, the large-angle rotating component includes a first movable groove opened inside the rotating cylinder, a movable rod slidably installed inside the first movable groove, an mounting plate fixedly installed at one end of the movable rod near the support frame, and three locking blocks installed at equal angles on the side of the mounting plate near the support frame, with the three locking blocks corresponding one-to-one with the three first locking grooves.

[0012] Preferably, a first spring is fixedly installed on the side of the movable rod away from the mounting plate, one end of the first spring is fixedly connected to the inner wall of the end of the first movable groove, a first magnet is fixedly installed on the movable rod, and a first electromagnet is fixedly installed on the inner wall of the end of the first movable groove.

[0013] Preferably, the small-angle swing component includes a slide groove horizontally opened on the support frame, a slider is slidably installed inside the slide groove, the slider is located below the rotating cylinder, an L-shaped plate is fixedly installed on the side of the slider away from the circular plate, a limit sleeve is sleeved on the outer side of the longitudinal part of the L-shaped plate, a connecting shaft is eccentrically installed on the side of the rotating cylinder away from the circular plate, and one end of the limit sleeve is rotatably connected to the connecting shaft.

[0014] Preferably, the slider has a second movable groove inside, a movable block is movably installed inside the second movable groove, a locking rod is fixedly installed on the side of the movable block near the circular plate, the locking rod corresponds to the second locking groove located at the bottom of the circular plate, a second spring is fixedly installed on the side of the movable block near the circular plate, and one end of the second spring is fixedly connected to the inner wall of the end of the second movable groove.

[0015] Preferably, a second magnetic block is fixedly installed on the movable block, and a second electromagnet is fixedly installed on the inner wall of the end of the second movable groove away from the circular plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1) During operation, a first sorting area, a second sorting area, and a third sorting area are set at equal angles on a circular plate. Each of the three sorting areas is composed of evenly arranged sorting rollers, and the gap between two adjacent sorting rollers increases sequentially. This allows for the sorting of lobsters of different sizes, and lobsters can stay in one of the sorting positions for a long time, thus improving the sorting effect.

[0018] 2) During operation, the set card block engages with the first card slot, and the card rod disengages from the second card slot. The rotating cylinder can drive the circular plate to rotate, and each time it drives the circular plate to rotate 120 degrees. This makes it easy to adjust one of the sorting areas in the first, second, and third sorting areas on the circular plate to the bottom, thus facilitating the sorting of lobsters of different sizes.

[0019] 3) During operation, when the set card block disengages from the first card slot and the card rod engages with the second card slot, the rotating cylinder can drive the slider to move laterally back and forth inside the slide groove, thereby continuously driving the circular plate to swing back and forth at a small angle, so that the lobster can be continuously moved in one of the sorting areas, improving the sorting effect. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of a lobster size sorting device according to the present invention;

[0023] Figure 2 This is a schematic diagram of one side of the circular plate structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the other side of the circular plate of the present invention;

[0025] Figure 4 This is a schematic diagram of the rotation control component structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the large-angle rotating component structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection structure between the slider and the rotating cylinder of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the slider of the present invention.

[0029] In the diagram: 1. Base; 2. Support frame; 3. Lobster sorting component; 301. Circular plate; 302. Sorting roller; 303. First sorting area; 304. Second sorting area; 305. Third sorting area; 306. Rotating shaft; 307. First slot; 308. Second slot; 4. Receiving box; 5. Rotation control component; 501. Mounting frame; 502. Rotating cylinder; 503. Gear ring; 504. Gear; 505. Drive motor; 506. Large-angle rotating component; 5061. First movable slot ; 5062, Movable rod; 5063, Mounting plate; 5064, Locking block; 5065, First spring; 5066, First magnet; 5067, First electromagnet; 507, Small angle swing component; 5071, Slide groove; 5072, Slider; 5073, L-shaped plate; 5074, Limiting sleeve; 5075, Connecting shaft; 5076, Second movable groove; 5077, Movable block; 5078, Locking rod; 5079, Second spring; 50710, Second magnet; 50711, Second electromagnet. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Depend on Figure 1-7 The present invention relates to a sorting device for lobsters by size, comprising a base 1, a support frame 2 fixedly mounted on the top of the base 1, a lobster sorting component 3 disposed on one side of the support frame 2, the lobster sorting component 3 being located above the base 1, and a receiving box 4 placed below the lobster sorting component 3.

[0032] The lobster sorting component 3 includes a circular plate 301 disposed on one side of the support frame 2. A first sorting area 303, a second sorting area 304, and a third sorting area 305 are sequentially arranged at equal angles on the side of the circular plate 301 away from the support frame 2. Each of the three sorting areas 303, 304, and 305 is composed of evenly arranged sorting rollers 302. The distance between two adjacent sorting rollers 302 in the first sorting area 303, the distance between two adjacent sorting rollers 302 in the second sorting area 304, and the distance between two adjacent sorting rollers 302 in the third sorting area 305 increases sequentially, thus completing the sorting of lobsters of different sizes. A rotating shaft 306 is coaxially mounted on the side of the circular plate 301 closest to the support frame 2. The rotating shaft 306 is rotatably connected to the support frame 2. Three first slots 307 are equally spaced at one end away from the circular plate 301, and two second slots 308 are equally spaced at one side of the circular plate 301 near the support frame 2. The three second slots 308 correspond to the positions of the first sorting area 303, the second sorting area 304, and the third sorting area 305, respectively. The first sorting area 303, the second sorting area 304, and the third sorting area 305 are equally spaced on the circular plate 301. The first sorting area 303, the second sorting area 304, and the third sorting area 305 are all composed of evenly spaced sorting rollers 302, and the gap between two adjacent sorting rollers 302 increases sequentially, thereby sorting lobsters of different sizes. Lobsters can stay in one of the sorting positions for a long time for sorting, which improves the sorting effect.

[0033] A rotation control component 5 is provided on the side of the support frame 2 away from the circular plate 301. The rotation control component 5 is used to drive the circular plate 301 to achieve two modes of rotation. The first mode is to control the circular plate 301 to rotate 120 degrees to adjust the sorting position. The second mode is to control the circular plate 301 to swing back and forth in a small range at one of the sorting positions to facilitate the sorting of lobsters.

[0034] The rotation control assembly 5 includes a mounting frame 501 fixedly installed on the side of the support frame 2 away from the circular plate 301. A rotating cylinder 502 is rotatably mounted on the mounting frame 501. The rotating cylinder 502 is coaxially arranged with the circular plate 301. A gear ring 503 is fixedly installed on the outer side of the rotating cylinder 502. A gear 504 is meshed on one side of the gear ring 503. The gear 504 is fixedly connected to the output shaft of the drive motor 505. The drive motor 505 is fixedly mounted on the mounting frame 501. A large-angle rotating component 506 is provided on the rotating cylinder 502. After the large-angle rotating component 506 is engaged with the first slot 307, it drives the circular plate 301 to rotate and adjust the sorting position. A small-angle swing component 507 is provided between the rotating cylinder 502 and the support frame 2. After the small-angle swing component 507 is engaged with the second slot 308, it drives the circular plate 301 to swing back and forth at one of the sorting positions.

[0035] The large-angle rotating component 506 includes a first movable groove 5061 formed inside the rotating cylinder 502. A movable rod 5062 is slidably installed inside the first movable groove 5061. A mounting plate 5063 is fixedly installed on the end of the movable rod 5062 near the support frame 2. Three locking blocks 5064 are installed at equal angles on the side of the mounting plate 5063 near the support frame 2. The three locking blocks 5064 correspond one-to-one with three first locking slots 307. A first spring 5065 is fixedly installed on the side of the movable rod 5062 away from the mounting plate 5063. One end of the first spring 5065 is connected to the first movable groove 5062. The inner wall of the end of 061 is fixedly connected, the first magnetic block 5066 is fixedly installed on the movable rod 5062, the first electromagnet 5067 is fixedly installed on the inner wall of the end of the first movable groove 5061, the locking block 5064 is engaged with the first locking groove 307, the rotation of the rotating cylinder 502 can drive the circular plate 301 to rotate, and each time it drives the circular plate 301 to rotate 120 degrees, which makes it convenient to adjust one of the sorting areas 303, 304 and 305 on the circular plate 301 to the bottom, thereby facilitating the sorting of lobsters of different sizes.

[0036] The small-angle swing component 507 includes a slide groove 5071 laterally opened on the support frame 2. A slider 5072 is slidably installed inside the slide groove 5071. The slider 5072 is located below the rotating cylinder 502. An L-shaped plate 5073 is fixedly installed on the side of the slider 5072 away from the circular plate 301. A limit sleeve 5074 is fitted on the outer side of the longitudinal portion of the L-shaped plate 5073. A connecting shaft 5075 is eccentrically installed on the side of the rotating cylinder 502 away from the circular plate 301. One end of the limit sleeve 5074 is rotatably connected to the connecting shaft 5075. A second movable groove 5076 is opened inside the slider 5072. A movable block 5077 is movably installed inside the second movable groove 5076. A locking rod 5078 is fixedly installed on the side of the movable block 5077 near the circular plate 301. The locking rod 5078 is connected to the side of the circular plate 301. Corresponding to the second slot 308 at the bottom of 301, a second spring 5079 is fixedly installed on the side of the movable block 5077 near the circular plate 301. One end of the second spring 5079 is fixedly connected to the inner wall of the end of the second movable groove 5076. A second magnet 50710 is fixedly installed on the movable block 5077. A second electromagnet 50711 is fixedly installed on the inner wall of the end of the second movable groove 5076 away from the circular plate 301. When the locking block 5064 disengages from the first slot 307 and the locking rod 5078 engages with the second slot 308, the rotating cylinder 502 rotates, which can drive the slider 5072 to move laterally back and forth inside the groove 5071, thereby continuously driving the circular plate 301 to swing back and forth at a small angle, so that the lobster can be continuously moved in one of the sorting areas, improving the sorting effect.

[0037] Working principle: In the original state, the locking block 5064 on the mounting plate 5063 engages with the first locking groove 307 at the end of the rotating shaft 306, thereby locking and fixing the circular plate 301. At this time, the second locking groove 308 corresponding to the first sorting area 303 is located at the bottom of the three second locking grooves 308, and the three second locking grooves 308 are respectively located in the middle of the corresponding areas of the first sorting area 303, the second sorting area 304 and the third sorting area 305.

[0038] Then, the lobsters to be sorted are placed above the first sorting area 303. Then, the second electromagnet 50711 is energized to generate a repulsive force on the second magnetic block 50710, pushing the lever 5078 to move towards the side of the circular plate 301, so that it is inserted into the second slot 308, so that the slider 5072 is locked and fixed to the circular plate 301. Then, the first electromagnet 5067 is energized, and the first electromagnet 5067 generates an attractive force on the first magnetic block 5066, driving the mounting plate 5063 to move away from the circular plate 301, so that the lever 5064 is disengaged and locked in the first slot 307.

[0039] Then, the drive motor 505 is turned on, driving the gear 504 to rotate. The gear 504 meshes with the gear ring 503 on the outside of the rotating cylinder 502, thereby driving the rotating cylinder 502 to rotate continuously. During the rotation, the slider 5072 is driven to move laterally back and forth along the slide groove 5071 through the connecting shaft 5075, the limiting sleeve 5074 and the L-shaped plate 5073. Since the locking rod 5078 in the slider 5072 is locked in the second locking groove 308, the slider 5072 moves back and forth, causing the circular plate 301 to swing back and forth. During the swing, the sorting roller 302 on the first sorting area 303 is always located at the bottom. At this time, the lobsters on the first sorting area 303 are constantly being moved, causing the lobsters whose size matches the gap between two adjacent sorting rollers 302 on the first sorting area 303 to fall down into the receiving box 4. After the smaller lobsters are sorted out, the lobsters in the receiving box 4 are taken out.

[0040] After moving slider 5072 to the center position within slide groove 5071, the locking block 5064 on mounting plate 5063 aligns with the first locking groove 307. Then, the first electromagnet 5067 is de-energized, causing mounting plate 5063 to move towards the circular plate 301 under the force of the first spring 5065, allowing locking block 5064 to engage with the first locking groove 307, thus securing rotating cylinder 502 to the circular plate 301. Next, the second electromagnet 50711 is de-energized, causing locking rod 5078 to retract under the force of the second spring 5079 and disengage from the second locking groove 308. The machine engages with the rotating drum 502 via the drive motor 505, thereby rotating the circular plate 301 180 degrees and rotating the second sorting area 304 on the circular plate 301 to the lowest position. At this time, the remaining lobsters move to the top of the sorting roller 302 on the second sorting area 304. Then, the locking rod 5078 engages with the corresponding second locking slot 308, and the rotating drum 502 is released from the circular plate 301. Then, the circular plate 301 is driven to swing back and forth, so that the lobsters are sorted by the gap between the two adjacent sorting rollers 302 on the second sorting area 304.

[0041] Finally, adjust the circular plate 301 to the bottom position of the third sorting area 305 to sort the large lobsters.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sorting device for lobsters by size, comprising a base (1), characterized in that: A support frame (2) is fixedly installed on the top of the base (1), and a lobster sorting component (3) is provided on one side of the support frame (2). The lobster sorting component (3) is located above the base (1), and a receiving box (4) is placed below the lobster sorting component (3). The lobster sorting component (3) includes a circular plate (301) disposed on one side of the support frame (2). The circular plate (301) is provided with a first sorting area (303), a second sorting area (304) and a third sorting area (305) arranged at equal angles on the side away from the support frame (2). The first sorting area (303), the second sorting area (304) and the third sorting area (305) are all composed of sorting rollers (302) evenly arranged. The distance between two adjacent sorting rollers (302) in the first sorting area (303), the distance between two adjacent sorting rollers (302) in the second sorting area (304) and the distance between two adjacent sorting rollers (302) in the third sorting area (305) increases in sequence to complete the sorting of lobsters of different sizes. A rotation control component (5) is provided on the side of the support frame (2) away from the circular plate (301). The rotation control component (5) is used to drive the circular plate (301) to rotate in two modes. The first mode is to control the circular plate (301) to rotate 120 degrees to adjust the sorting position. The second mode is to control the circular plate (301) to swing back and forth in a small range at one of the sorting positions to facilitate the sorting of lobsters.

2. The sorting device for lobster size according to claim 1, characterized in that: A rotating shaft (306) is coaxially mounted on the side of the circular plate (301) near the support frame (2). The rotating shaft (306) is rotatably connected to the support frame (2). Three first slots (307) are opened at equal angles on the end of the rotating shaft (306) away from the circular plate (301). Two second slots (308) are opened at equal angles on the side of the circular plate (301) near the support frame (2). The three second slots (308) correspond to the positions of the first sorting area (303), the second sorting area (304), and the third sorting area (305), respectively.

3. The sorting device for lobster size according to claim 1, characterized in that: The rotation control assembly (5) includes a mounting frame (501) fixedly installed on the side of the support frame (2) away from the circular plate (301). A rotating cylinder (502) is rotatably installed on the mounting frame (501). The rotating cylinder (502) is coaxially arranged with the circular plate (301). A gear ring (503) is fixedly installed on the outer side of the rotating cylinder (502). A gear (504) is meshed on one side of the gear ring (503). The gear (504) is fixedly connected to the output shaft of the drive motor (505). The drive motor (505) is fixedly installed on the mounting frame (501).

4. The sorting device for lobster size according to claim 3, characterized in that: The rotating cylinder (502) is provided with a large-angle rotating component (506). After the large-angle rotating component (506) is connected with the first slot (307), it drives the circular plate (301) to rotate and adjust the sorting position. A small-angle swing component (507) is provided between the rotating cylinder (502) and the support frame (2). After the small-angle swing component (507) is connected with the second slot (308), it drives the circular plate (301) to swing back and forth at one of the sorting positions.

5. A sorting device for lobster size according to claim 4, characterized in that: The large-angle rotating component (506) includes a first movable groove (5061) opened inside the rotating cylinder (502). A movable rod (5062) is slidably installed inside the first movable groove (5061). An installation plate (5063) is fixedly installed at one end of the movable rod (5062) near the support frame (2). Three locking blocks (5064) are installed at equal angles on one side of the installation plate (5063) near the support frame (2). The three locking blocks (5064) correspond one-to-one with the three first locking grooves (307).

6. A sorting device for lobster size according to claim 5, characterized in that: A first spring (5065) is fixedly installed on the side of the movable rod (5062) away from the mounting plate (5063). One end of the first spring (5065) is fixedly connected to the inner wall of the end of the first movable groove (5061). A first magnet (5066) is fixedly installed on the movable rod (5062). A first electromagnet (5067) is fixedly installed on the inner wall of the end of the first movable groove (5061).

7. A sorting device for lobster size according to claim 4, characterized in that: The small-angle swing member (507) includes a slide groove (5071) that is laterally opened on the support frame (2). A slider (5072) is slidably installed inside the slide groove (5071). The slider (5072) is located below the rotating cylinder (502). An L-shaped plate (5073) is fixedly installed on the side of the slider (5072) away from the circular plate (301). A limiting sleeve (5074) is sleeved on the outer side of the longitudinal part of the L-shaped plate (5073). A connecting shaft (5075) is eccentrically installed on the side of the rotating cylinder (502) away from the circular plate (301). One end of the limiting sleeve (5074) is rotatably connected to the connecting shaft (5075).

8. A sorting device for lobster size according to claim 7, characterized in that: The slider (5072) has a second movable groove (5076) inside. A movable block (5077) is movably installed inside the second movable groove (5076). A locking rod (5078) is fixedly installed on the side of the movable block (5077) near the circular plate (301). The locking rod (5078) corresponds to the second locking groove (308) located at the bottom of the circular plate (301). A second spring (5079) is fixedly installed on the side of the movable block (5077) near the circular plate (301). One end of the second spring (5079) is fixedly connected to the inner wall of the end of the second movable groove (5076).

9. A sorting device for lobster size according to claim 8, characterized in that: A second magnetic block (50710) is fixedly installed on the movable block (5077), and a second electromagnet (50711) is fixedly installed on the inner wall of the end of the second movable groove (5076) away from the circular plate (301).

Citation Information

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