A size grading device for crayfish

Abstract

This utility model discloses a size grading device for crayfish, which includes a fixed cylinder and a grading mechanism. An inlet is fixedly installed at the upper end of the fixed cylinder, penetrating through the cylinder. The grading mechanism includes multiple fixed columns fixedly installed at the bottom of the fixed cylinder, with mounting frames slidably connected to each column. The fixed columns slide against the inner wall of the mounting frames. A vibrating plate is fixedly installed between the fixed columns. An eccentric roller is sleeved on a rotating rod and fixedly connected thereto, sliding against the vibrating plate. Multiple filter plates arranged vertically opposite each other are fixedly installed inside the fixed cylinder, with multiple brush plates slidably connected to the upper ends of the filter plates and slidingly against them. This device utilizes the cooperation between a first motor, an eccentric roller, a second motor, a transmission rod, brush plates, a pull gate, and vibrating plates to improve the grading efficiency of crayfish and simultaneously improve the crayfish recovery efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of crayfish grading technology, specifically a size grading device for crayfish. Background Technology

[0002] The size grading device for crayfish uses mechanical structures and other technologies to detect indicators such as body length, weight, or carapace width of crayfish by setting different grading standards. The crayfish are then sent to the corresponding grade channel or area. This avoids the problems of time-consuming, labor-intensive, and inconsistent standards associated with manual grading. It is especially suitable for large-scale farming and processing scenarios. The graded crayfish can be priced and sold according to different sizes to meet the diverse needs of the market. It also provides data reference for subsequent farming management, helps to optimize farming strategies, and improves the economic benefits and standardization level of the industry.

[0003] Crayfish are naturally active and have a tendency to climb and gather together. When grading through a filter plate, a large number of crayfish will rush towards the filter plate at the same time. Crayfish of similar or smaller size are prone to getting stuck in the grading holes of the filter plate. As more crayfish continue to arrive, they pile up and cause blockages. The crayfish piled up on the filter plate cannot pass through the grading holes smoothly by their own movement. The more crayfish piled up on the filter plate, the more obstructed the normal grading process becomes. The dense pile of crayfish also makes it difficult to remove them from the filter plate after grading. Manual cleaning is not only time-consuming and laborious, but also easily injures the crayfish, further affecting the grading efficiency and crayfish quality, thus restricting the efficient implementation of crayfish grading. Therefore, this application proposes a size grading device for crayfish. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a size grading device for crayfish, which effectively solves the problems of low grading efficiency and inconvenience in removing crayfish.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a size grading device for crayfish, comprising a fixed cylinder and a grading mechanism. The upper end of the fixed cylinder has an inlet that penetrates the fixed cylinder. The grading mechanism includes multiple fixed columns fixedly installed at the bottom of the fixed cylinder. Mounting frames are slidably connected to the fixed columns, and the fixed columns slide against the inner walls of the mounting frames. A vibrating plate is fixedly installed between the multiple fixed columns on the fixed columns. An mounting plate is fixedly installed between two mounting frames on the mounting frames. A first motor is fixedly installed on one of the mounting plates. The output end of the first motor penetrates the mounting plate and is rotatably connected to it. A rotating rod is fixedly connected to the output end of the first motor. An eccentric roller is sleeved on the rotating rod and fixedly connected to it. The eccentric roller slides against the vibrating plate. Multiple filter plates arranged vertically opposite each other are fixedly installed inside the fixed cylinder. Multiple brush plates that slide against the filter plates are slidably connected to the upper ends of the filter plates.

[0006] Preferably, a second motor is fixedly installed inside the fixed cylinder, and a transmission rod is fixedly connected to the output end of the second motor.

[0007] Preferably, the transmission rod is fixedly connected to the brush plate, the transmission rod passes through the filter plate and is rotatably connected to it, and multiple brush bristles are fixedly installed at the bottom of the brush plate, with the brush bristles sliding against the filter plate.

[0008] Preferably, a fixed plate located below the filter plate is fixedly installed inside the fixed cylinder, the second motor is located below the fixed plate, and the transmission rod passes through the fixed plate and is rotatably connected to it.

[0009] Preferably, the fixed cylinder is fixedly installed with a through-hole that penetrates the fixed cylinder, and the fixed cylinder is provided with a sliding groove that is opposite to the through-hole.

[0010] Preferably, a sliding door is slidably connected within the chute and slides against the inner wall of the chute, with the sliding door positioned opposite the through opening.

[0011] Preferably, a handle is fixedly installed on the sliding door, and a magnet is fixedly installed on the through-hole opposite to the sliding door.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a grading mechanism, the first motor, eccentric roller, and vibrating plate work together. The output of the first motor drives the rotating rod to rotate, which in turn drives the eccentric roller to rotate. The eccentric roller drives the vibrating plate to move up and down, which in turn drives the fixed cylinder to move up and down, thereby moving the crayfish up and down. This prevents the crayfish from clogging the filter plate and improves the grading efficiency of the crayfish. At the same time, the second motor, transmission rod, and brush plate work together. The output of the second motor drives the transmission rod to rotate, which in turn drives the brush plate fixedly connected to it to rotate, thereby breaking up the accumulated crayfish and improving the grading efficiency of the crayfish. The chute, pull door, and magnet work together to quickly open the fixed cylinder and quickly remove the crayfish, improving the recycling efficiency of the crayfish. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the size grading device for crayfish according to this utility model;

[0016] Figure 2 This is a cross-sectional view of the size grading device for crayfish according to this utility model;

[0017] Figure 3 This is a top sectional view of the size grading device for crayfish according to this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0019] In the diagram: 1. Fixed cylinder; 2. Fixed column; 3. First motor; 4. Mounting frame; 5. Eccentric roller; 6. Vibrating plate; 7. Pull door; 8. Pull handle; 9. Feed inlet; 10. Through port; 11. Filter plate; 12. Brush plate; 13. Brush bristles; 14. Fixed plate; 15. Second motor; 16. Transmission rod; 17. Rotating rod; 18. Mounting plate; 19. Magnet; 20. Slide groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 The present invention includes a fixed cylinder 1 and a grading mechanism. The upper end of the fixed cylinder 1 is fixedly installed with an inlet 9 that passes through the fixed cylinder 1. The grading mechanism includes multiple fixed columns 2 fixedly installed at the bottom of the fixed cylinder 1. A mounting frame 4 is slidably connected to the fixed column 2. The fixed column 2 slides against the inner wall of the mounting frame 4. A vibrating plate 6 located between the multiple fixed columns 2 is fixedly installed on the fixed column 2. A mounting plate 18 located between two mounting frames 4 is fixedly installed on the mounting frame 4. A first motor 3 is fixedly installed on one of the mounting plates 18. The output end of the first motor 3 passes through the mounting plate 18 and is rotatably connected to it. A rotating rod 17 is fixedly connected to the output end of the first motor 3. An eccentric roller 5 is sleeved on the rotating rod 17 and fixedly connected to it. The eccentric roller 5 slides against the vibrating plate 6.

[0022] A second motor 15 is fixedly installed inside the fixed cylinder 1. A transmission rod 16 is fixedly connected to the output end of the second motor 15. Multiple filter plates 11 arranged vertically opposite each other are fixedly installed inside the fixed cylinder 1. Multiple brush plates 12 are slidably connected to the upper end of the filter plates 11 and slide against them. The transmission rod 16 is fixedly connected to the brush plates 12, passes through the filter plates 11 and is rotatably connected to them. Multiple bristles 13 are fixedly installed at the bottom of the brush plates 12 and slide against the filter plates 11. A fixed plate 14 located below the filter plates 11 is fixedly installed inside the fixed cylinder 1. The second motor 15 is located below the fixed plate 14, and the transmission rod 16 passes through the fixed plate 14 and is rotatably connected to it.

[0023] During operation, crayfish are poured into the feed inlet 9 and the first motor 3 and the second motor 15 are turned on. The crayfish enter the fixed cylinder 1 through the feed inlet 9. The output of the first motor 3 drives the rotating rod 17 to rotate, which in turn drives the eccentric roller 5 fixedly connected to it to rotate. The rotation of the eccentric roller 5 causes the vibrating plate 6 to move up and down, which in turn causes the fixed column 2 to move up and down, which in turn causes the fixed cylinder 1 to move up and down, thereby causing the crayfish in the fixed cylinder 1 to move up and down. After entering the fixed cylinder 1, the crayfish fall onto the filter plate 11, which then filters the crayfish of different sizes. The shrimp are filtered to grade them. Multiple filter plates 11 arranged vertically and vertically gradually decrease in size from top to bottom. The fixed cylinder 1 vibrates vertically to accelerate the filtration efficiency of the crayfish. The output end of the second motor 15 drives the transmission rod 16 to rotate. The transmission rod 16 drives the brush plate 12 fixedly connected to it to rotate. The rotation of the brush plate 12 will push the crayfish piled up on the top of the filter plate 11 to disperse them, preventing them from piling up and affecting the grading efficiency. At the same time, the brush plate 12 will drive the brush bristles 13 to rotate. The rotation of the brush bristles 13 can clean the filter plate 11 and prevent impurities from clogging the filter plate 11 and affecting the grading.

[0024] A through-hole 10 is fixedly installed on the fixed cylinder 1. A sliding groove 20 is provided on the fixed cylinder 1 opposite to the through-hole 10. A sliding door 7 is slidably connected in the sliding groove 20 and slides against the inner wall of the sliding groove 20. The sliding door 7 is opposite to the through-hole 10. A handle 8 is fixedly installed on the sliding door 7. A magnet 19 is fixedly installed on the through-hole 10 opposite to the sliding door 7.

[0025] Multiple filter plates 11 divide the inside of the fixed cylinder 1 into multiple gaps. After the crayfish are graded, they will stay in multiple gaps. Pulling the handle 8 can move the sliding door 7, thereby opening the fixed cylinder 1 and taking out crayfish of different sizes for collection. After collection, pulling the handle 8 can move the sliding door 7. The sliding door 7 is made of magnetic material. When the sliding door 7 comes into contact with the magnet 19, it will be attracted to the magnet 19, thus ensuring the sealing of the fixed cylinder 1.

[0026] Working principle: During operation, crayfish are poured into the feed inlet 9 and the first motor 3 and the second motor 15 are turned on. The crayfish will enter the fixed cylinder 1 through the feed inlet 9. The output of the first motor 3 will drive the rotating rod 17 to rotate, which in turn drives the eccentric roller 5 fixedly connected to it to rotate. The rotation of the eccentric roller 5 will drive the vibrating plate 6 to move up and down, which in turn drives the fixed column 2 to move up and down, which in turn drives the fixed cylinder 1 to move up and down, thereby causing the crayfish in the fixed cylinder 1 to move up and down. After entering the fixed cylinder 1, the crayfish will fall onto the filter plate 11, which will filter the crayfish of different sizes. The crayfish are filtered to grade them. Multiple filter plates 11 arranged vertically and vertically gradually decrease in size from top to bottom. The fixed cylinder 1 vibrates vertically to accelerate the filtration efficiency of the crayfish. The output end of the second motor 15 drives the transmission rod 16 to rotate, which in turn drives the brush plate 12 fixedly connected to it to rotate. The rotation of the brush plate 12 pushes the crayfish piled up on the top of the filter plate 11 apart, preventing the crayfish from piling up and affecting the grading efficiency. At the same time, the brush plate 12 drives the brush bristles 13 to rotate, which cleans the filter plate 11 and prevents impurities from clogging the filter plate 11 and affecting the grading.

[0027] When it is time to remove the crayfish, multiple filter plates 11 divide the inside of the fixed cylinder 1 into multiple gaps. After the crayfish are graded, they will stay in multiple gaps. Pulling the handle 8 will move the sliding door 7, thereby opening the fixed cylinder 1 and removing crayfish of different sizes for collection. After collection, pulling the handle 8 will move the sliding door 7. The sliding door 7 is made of magnetic material. When the sliding door 7 comes into contact with the magnet 19, it will be attracted to the magnet 19, thus ensuring the sealing of the fixed cylinder 1.

Claims

1. A size grading device for crayfish, comprising a fixed cylinder (1) and a grading mechanism, characterized in that: The upper end of the fixed cylinder (1) is fixedly installed with an inlet (9) that penetrates the fixed cylinder (1); the grading mechanism includes multiple fixed columns (2) fixedly installed at the bottom of the fixed cylinder (1), and mounting frames (4) are slidably connected to the fixed columns (2). The fixed columns (2) slide against the inner wall of the mounting frames (4). Vibration plates (6) located between the multiple fixed columns (2) are fixedly installed on the fixed columns (2). Mounting plates (18) located between two mounting frames (4) are fixedly installed on the mounting frames (4). One of the mounting plates (18) is mounted on the mounting frames (4). A first motor (3) is fixedly installed on the mounting plate (18). The output end of the first motor (3) passes through the mounting plate (18) and is rotatably connected to it. A rotating rod (17) is fixedly connected to the output end of the first motor (3). An eccentric roller (5) is fixedly connected to the rotating rod (17). The eccentric roller (5) slides against the vibrating plate (6). Multiple filter plates (11) are fixedly installed inside the fixed cylinder (1). Multiple brush plates (12) slide against the filter plates (11) at the upper end.

2. The size grading device for crayfish according to claim 1, characterized in that: A second motor (15) is fixedly installed inside the fixed cylinder (1), and a transmission rod (16) is fixedly connected to the output end of the second motor (15).

3. The size grading device for crayfish according to claim 2, characterized in that: The transmission rod (16) is fixedly connected to the brush plate (12). The transmission rod (16) passes through the filter plate (11) and is rotatably connected to it. Multiple brush bristles (13) are fixedly installed at the bottom of the brush plate (12). The brush bristles (13) slide against the filter plate (11).

4. A size grading device for crayfish according to claim 3, characterized in that: The fixed cylinder (1) is fixedly installed with a fixed plate (14) located below the filter plate (11). The second motor (15) is located below the fixed plate (14). The transmission rod (16) passes through the fixed plate (14) and is rotatably connected to it.

5. A size grading device for crayfish according to claim 1, characterized in that: The fixed cylinder (1) is fixedly installed with a through-hole (10) that passes through the fixed cylinder (1), and the fixed cylinder (1) is provided with a sliding groove (20) that is opposite to the through-hole (10).

6. A size grading device for crayfish according to claim 5, characterized in that: A sliding door (7) is slidably connected inside the slide groove (20) and slides against the inner wall of the slide groove (20). The sliding door (7) is arranged opposite to the through opening (10).

7. A size grading device for crayfish according to claim 6, characterized in that: A handle (8) is fixedly installed on the sliding door (7), and a magnet (19) is fixedly installed on the through opening (10) opposite to the sliding door (7).

Images