Energy-saving crayfish cleaning and impurity removing device

Abstract

This invention discloses an energy-saving crayfish cleaning and impurity removal device, relating to the crayfish processing field. It includes a base and a conveyor for transferring materials; a straightening component, disposed at the end of the base, comprising a floating part that slides along the head-to-tail direction of the crayfish. The outer surface of the floating part is in contact with the crayfish tail and has an arc-shaped contact surface adapted to the contour of the crayfish tail segment. This energy-saving crayfish cleaning and impurity removal device utilizes the dynamic contact between the arc-shaped contact surface on the floating part and the contour of the tail segment through the straightening component. The contact process adapts to the size differences and natural curling state of individual crayfish. As the floating part moves along the head-to-tail direction of the crayfish, it applies a reverse pushing force matching the curvature of the corresponding position segment by segment from the tail segment end towards the root. Through progressive flexible straightening, the curled tail of the crayfish is gradually flattened, avoiding the problem of compression damage to the shell and meat caused by rigid straightening structures.

Description

Technical Field

[0001] This invention relates to crayfish processing technology, specifically to an energy-saving crayfish cleaning and impurity removal device. Background Technology

[0002] Crayfish, as an important freshwater economic shrimp species, is farmed and consumed on a large scale in many regions. With the rapid development of the crayfish industry, the demand for industrial processing of crayfish is increasing. Among them, deveining (i.e., removing the shrimp's intestines) is a key impurity removal process in crayfish processing, which directly affects product quality, taste, and hygiene and safety.

[0003] Currently, removing the intestinal tract from crayfish mainly relies on manual labor. Operators typically hold the crayfish by its body, pinching the tail segment and pulling out the intestinal tract by rotating or pulling. While this manual method can ensure complete removal of the intestinal tract to some extent, it suffers from significant problems such as high labor intensity, low efficiency, high labor costs, and poor consistency, making it difficult to meet the requirements of large-scale, continuous production.

[0004] In its natural state, crayfish have curved bodies and their tails tend to curl up. The degree of curvature varies greatly between different individuals. Conventional mechanical structures are unable to correct the crayfish's body to a flattened posture suitable for removing the shrimp vein, resulting in an inconsistent position of the exposed end of the shrimp vein. This makes it difficult for the clamping mechanism to grip accurately, easily leading to missed gripping or misalignment, which in turn causes failure to remove the shrimp vein or damage to the crayfish. Therefore, an energy-saving crayfish cleaning and impurity removal device has been developed. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving crayfish cleaning and impurity removal device to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving crayfish cleaning and impurity removal device, comprising a base and a conveyor for driving material transfer; The correction component is located at the end of the base and includes a floating part that slides along the head and tail direction of the crayfish. The outer surface of the floating part fits against the tail of the crayfish and has an arc-shaped contact surface that matches the contour of the crayfish tail segment. Through the gradual pressing of the arc-shaped contact surface, the naturally curled tail segment is flattened from the end to the root. When the floating part moves along a preset direction under the action of external force, it drives the arc-shaped contact surface to slide synchronously along the contour of the crayfish tail, continuously applying reverse pushing force that matches the degree of curvature of the tail segment at each position, thereby flexibly correcting the naturally curled tail.

[0007] As a further optimization of the present invention, the floating part includes a moving member and a correcting member. The ends of the correcting member are evenly distributed along the side of the moving member, and are used to drive the crayfish tail from a bent state to a flattened state. When the correcting member reciprocates with the moving member, its ends sequentially contact and push the crayfish tail segments, and through gradual force application, the tail segments gradually unfold to form an approximately horizontal posture. The correction assembly also includes a positioning plate that engages with the base. A limiting plate is symmetrically engaged at the end of the positioning plate, and a limiting groove is provided at the end of the limiting plate.

[0008] As a further optimization of the present invention, a driving block is rotatably provided at the end of the limiting plate and near the center position, a driving rod is rotatably provided at one end of the driving block, and a push plate is rotatably provided at the other end; A fitting block is fixedly provided on one side of the push plate, and the outer surface of the end of the fitting block is slidably connected to the inner wall of the limiting groove.

[0009] As a further optimization of the present invention, a power plate and a power gear are rotatably arranged at the middle position of the end of the limiting plate, and a power groove is opened at the end of the power plate, and the inner wall of the power groove is slidably connected to the outer surface of the drive rod.

[0010] As a further optimization of the present invention, the end of the push plate is slidably connected to the end of the moving member, a protective groove is provided on the side of the moving member, a movable plate is slidably provided on the inner wall of the protective groove, and the outer surface of the movable plate meshes with the outer surface of the power gear.

[0011] As a further optimization of the present invention, a pull-out assembly is also included. The pull-out assembly is disposed at the end of the base. The pull-out assembly includes a pull-out member, a support member, and a locking member. The end of the pull-out member is engaged with the end of the support member. The end of the locking member is slidably disposed at the end of the support member. When the locking member locks the exposed end of the shrimp line at the tail of the crayfish, it works in conjunction with the pull-out member to move along the extension direction of the shrimp line, so that the shrimp line is continuously pulled out in a rotating state, simulating the action of manually rotating and pulling the shrimp line. The pull-out assembly also includes a connecting plate that snaps into the base, and an extension plate is symmetrically fixed at the end of the connecting plate, and a protective ring is snapped into the end of the extension plate. The inner wall of the extension plate is slidably provided with a sliding block.

[0012] As a further optimization of the present invention, a limiting ring is snapped onto the end of the extension plate, and a rotating cylinder is rotatably provided at the end of the protective ring. An annular groove is provided at the end of the rotating cylinder, and the inner wall of the annular groove is fitted and slidably connected to the outer surface of the limiting ring.

[0013] As a further optimization of the present invention, an arc-shaped groove is formed on the outer surface of the rotating cylinder, and the inner wall of the arc-shaped groove is slidably connected to the outer surface of the sliding block.

[0014] As a further optimization of the present invention, a through hole is provided at the middle position of the end of the rotating drum, and the inner wall of the through hole is slidably connected to the outer surface of the pull-out component.

[0015] As a further optimization of the present invention, a locking plate is snapped onto the end of the pull-out member, and a locking rod is symmetrically snapped onto the end of the locking plate, the end of the locking rod being snapped onto the end of the sliding block.

[0016] Compared with the prior art, the energy-saving crayfish cleaning and impurity removal device provided by the present invention has the following beneficial effects: The correction component utilizes the dynamic fit between the arc-shaped contact surface on the floating part and the contour of the tail segment. The fitting process adapts to the size differences and natural curling state of individual crayfish. As the floating part moves along the head-to-tail direction of the crayfish, it applies a reverse pushing force from the end of the tail segment toward the root, matching the curvature of the corresponding position. Through progressive and flexible correction, the curled tail of the crayfish is gradually flattened, avoiding the problem of compression damage to the shell and meat of the crayfish caused by rigid correction structures.

[0017] The locking mechanism on the pull-out assembly precisely clamps the exposed shrimp vein end of the crayfish's tail. As the pull-out assembly moves along the direction of the shrimp vein, the coordinated structure of the rotating cylinder, sliding block, and arc groove ensures that the shrimp vein maintains a synchronous rotational motion as it is gradually pulled out. This simulates the manual process of removing the shrimp vein, effectively preventing the shrimp vein from breaking during the pulling process and significantly improving the success rate of completely removing the shrimp vein while also ensuring the integrity of the crayfish itself. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the corrective component structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the correction component provided in an embodiment of the present invention; Figure 4This is a first exploded view of the corrective component structure provided in an embodiment of the present invention; Figure 5 This is a second exploded view of the correction component structure provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the pull-out component structure provided in an embodiment of the present invention; Figure 7 This is a first exploded view of the pull-out component structure provided in an embodiment of the present invention; Figure 8 This is a second exploded view of the pull-out component structure provided in an embodiment of the present invention; Figure 9 This is a schematic diagram illustrating the changes in the tail of a crayfish as provided in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Base; 2. Correction assembly; 3. Pull-out assembly; 11. Conveying component; 21. Positioning plate; 22. Limiting plate; 221. Limiting groove; 23. Pushing plate; 231. Fitting block; 24. Driving block; 241. Driving rod; 25. Power plate; 251. Power groove; 26. Power gear; 27. Moving component; 271. Correction component; 272. Protective groove; 28. Movable plate; 31. Connecting plate; 32. Extension plate; 321. Protective ring; 33. Sliding block; 34. Limiting ring; 35. Rotary cylinder; 351. Annular groove; 352. Arc groove; 353. Through hole; 36. Pull-out component; 37. Locking plate; 371. Locking rod; 38. Support component; 381. Locking component. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Example: Please refer to Figures 1-9 An energy-saving crayfish cleaning and impurity removal device includes a base 1, a conveyor 11 for driving material transfer, and a correction component 2 and a pull-out component 3. In some embodiments, the conveyor 11 is disposed on the side of the base 1 to accurately transfer the crayfish to the processing position, ensuring that its tail faces the inlet end of the correction component 2. The conveyor 11 may adopt a disc structure with spaced limiting grooves on its surface to position the individual crayfish and prevent it from shifting or stacking during the conveying process. When the crayfish is conveyed to the front end of the processing end, its naturally curved tail is exactly located in the working area of ​​the correction component 271.

[0023] The correction component 2 and the pull-out component 3 are connected and set on the processing station of the base 1. The two work together to complete the shrimp posture correction and shrimp vein removal operations.

[0024] During this process, the correction component 2 gradually pushes the crayfish's naturally curled tail through reciprocating motion, gradually flattening it into an almost horizontal straight state, ensuring that the exposed end of the shrimp vein, which was originally covered by the curled tail structure, is fully exposed within the pre-set working range of the pull component 3, providing clear and stable operating conditions for the subsequent removal of the shrimp vein.

[0025] Reference Figure 2-5 The correction component 2 is located at the end of the base 1 and includes a movable component 27 and a correction component 271. The ends of the correction component 271 are evenly distributed along the side of the movable component 27 and are used to drive the crayfish tail from a bent state to a flat state. When the correction component 271 moves back and forth with the movable component 27, its ends contact and push the crayfish tail segments in sequence. Through gradual force application, the tail segments are gradually unfolded to form an approximately horizontal posture.

[0026] In some embodiments, the moving part 27 may be a linear guide or a slider structure, and the straightening part 271 may be a flexible silicone finger or a metal push rod with a buffer pad, the end of which is arc-shaped to fit the contour of the crayfish tail segment and avoid damage to the shrimp shell during the straightening process.

[0027] Specifically, when the moving part 27 reciprocates in the horizontal direction under the action of the driving mechanism, it drives the correcting part 271 to move synchronously. Its front end successively abuts against the last tail segment of the crayfish tail, and gradually moves forward with the movement, applying a pushing force from weak to strong to the adjacent tail segments.

[0028] Since the corrective components 271 are arranged in a stepped or linear uniform manner along the side of the moving component 27, continuous and orderly correction of multiple segments of the tail can be achieved, effectively avoiding shrimp body breakage or shrimp shell damage caused by one-time forceful flattening.

[0029] Reference Figure 2-5 and Figure 9 The correction component 2 also includes a positioning plate 21 that is snapped into the base 1. A limiting plate 22 is symmetrically snapped into the end of the positioning plate 21. A limiting groove 221 is opened at the end of the limiting plate 22. A driving block 24 is rotatably arranged at the end of the limiting plate 22 and near the center. A driving rod 241 is rotatably arranged at one end of the driving block 24, and a push plate 23 is rotatably arranged at the other end. A fitting block 231 is fixedly arranged on one side of the push plate 23. The outer surface of the end of the fitting block 231 is slidably connected to the inner wall of the limiting groove 221.

[0030] A power plate 25 and a power gear 26 are rotatably arranged at the middle position of the end of the limiting plate 22. A power groove 251 is opened at the end of the power plate 25, and the inner wall of the power groove 251 is slidably connected to the outer surface of the drive rod 241.

[0031] In some embodiments, the positioning plate 21 is securely connected to the base 1 by bolts or snap-fit ​​structures to ensure that the entire correction assembly 2 remains in a stable position during high-frequency reciprocating motion.

[0032] The limiting plate 22 is symmetrically arranged on both sides of the positioning plate 21 to form a guide frame. The limiting groove 221 provides a precise sliding path for the interlocking block 231, restricting the push plate 23 to move horizontally only along the preset trajectory, thus avoiding deflection or shaking.

[0033] Furthermore, a power output device such as a motor is installed inside the drive block 24 and is connected to an external control device.

[0034] The cross-section of the drive block 24 is triangular, and its three vertices are connected to the drive rod 241, the push plate 23 and the rotating shaft respectively, forming a stable triangular transmission structure. When the drive rod 241 is subjected to force, it synchronously drives the drive block 24 to rotate around the rotating shaft.

[0035] Specifically, when the power plate 25 rotates at a set frequency under the drive of the motor, the power groove 251 at its end pushes the drive rod 241 to slide, causing the drive block 24 to rotate periodically, which in turn causes the push plate 23 to make a smooth reciprocating motion along the limiting groove 221; at the same time, through the interlocking connection structure between the push plate 23 and the moving part 27, it is transformed into a continuous pushing action of the straightening part 271 on the tail of the crayfish.

[0036] Reference Figure 2-5 The end of the push plate 23 is engaged and slidably connected with the end of the moving part 27. A protective groove 272 is provided on the side of the moving part 27. A movable plate 28 is slidably provided on the inner wall of the protective groove 272. The outer surface of the movable plate 28 meshes with the outer surface of the power gear 26.

[0037] In some embodiments, the push plate 23 and the moving part 27 are connected by a T-slot or dovetail groove structure to ensure the stability of force transmission during reciprocating motion.

[0038] The protective groove 272 extends longitudinally along the side of the moving part 27, providing a limiting guide for the movable plate 28, while preventing external impurities from entering the transmission area.

[0039] After the movable plate 28 meshes with the power gear 26, it rotates synchronously with the power plate 25, which helps to adjust the movement stroke of the moving part 27 and improves the smoothness and repeatability of the correction action.

[0040] Specifically, when the power plate 25 rotates, it drives the drive rod 241 to reciprocate through the power groove 251, thereby driving the push plate 23 to slide smoothly along the limiting groove 221; the push plate 23 simultaneously drives the moving part 27 to move up or down, thereby driving the straightening part 271 to periodically push the crayfish tail.

[0041] At the same time, under the meshing action of the power gear 26, the movable plate 28 drives the slidingly fitted moving part 27 to move along the end of the push plate 23 to push and correct the crayfish tail, ensuring that each segment of the tail gradually flattens out during the pushing process and does not undergo sudden deformation.

[0042] Reference Figure 6-8 The pull-out component 3 is located at the end of the base 1 and includes a pull-out component 36, a support component 38, and a locking component 381. The end of the pull-out component 36 is engaged with the end of the support component 38, and the end of the locking component 381 is slidably fitted onto the end of the support component 38. When the locking component 381 locks the exposed end of the shrimp line at the tail of the crayfish, it moves along the extension direction of the shrimp line in conjunction with the pull-out component 36, so that the shrimp line is continuously pulled out in a rotating state, simulating the action of manually rotating and pulling the shrimp line.

[0043] In some embodiments, the pull-out member 36 may be a rod with protrusions distributed along the axial direction of the rod to apply a rotational torque to the shrimp line during the pulling process.

[0044] The support member 38 may be a plate or frame structure, used to provide a stable mounting base for the pull-out member 36 and the locking member 381, and to ensure that the two maintain a precise relative position during operation.

[0045] The locking element 381 can adopt an elastic clamping structure or a miniature pneumatic gripper, with anti-slip texture or a flexible pad on its inner side, which can clamp the exposed end of the shrimp vein while avoiding breaking it.

[0046] Specifically, after the locking member 381 clamps the exposed end of the shrimp vein, the pulling member 36 moves axially. Combined with the friction between the gripper and the shrimp vein contact surface, the shrimp vein rotates synchronously during the pulling process, thereby effectively reducing the pulling resistance and preventing the shrimp vein from breaking. This rotating pulling action can accurately simulate the "rotating and pulling" technique in manual operation, significantly improving the integrity and success rate of removing the shrimp vein.

[0047] Reference Figure 6-8 The pull-out assembly 3 also includes a connecting plate 31 that is snapped into the base 1. An extension plate 32 is symmetrically fixed at the end of the connecting plate 31, and a protective ring 321 is snapped into the end of the extension plate 32. A sliding block 33 is slidably provided on the inner wall of the extension plate 32.

[0048] In some embodiments, the connecting plate 31 is securely connected to the base 1 by bolts or snap-fit ​​structures to ensure that the pull-out assembly 3 maintains overall rigidity and positional accuracy during high-frequency operation.

[0049] The extension plate 32 extends horizontally to provide a stable sliding track for the sliding block 33, and together with the protective ring 321, it forms a support and limiting structure for the rotating cylinder 35.

[0050] Specifically, the inner wall of the extension plate 32 is provided with a guide groove, in which the sliding block 33 is embedded and can slide smoothly along the extension direction. Its outer surface cooperates with the arc groove 352 on the rotating cylinder 35. When the sliding block 33 is moved by force, it drives the rotating cylinder 35 to rotate axially and rotates around the end of the rotating cylinder 35 at the same time, thereby realizing the spiral traction of the shrimp line during the pulling process.

[0051] Reference Figure 6-8 The extension plate 32 has a retaining ring 34 snapped onto its end, and a rotating cylinder 35 is rotatably mounted on the end of the protective ring 321. An annular groove 351 is formed at the end of the rotating cylinder 35, and the inner wall of the annular groove 351 is slidably connected to the outer surface of the retaining ring 34. An arc-shaped groove 352 is formed on the outer surface of the rotating cylinder 35, and the inner wall of the arc-shaped groove 352 is slidably connected to the outer surface of the sliding block 33. A through hole 353 is formed at the middle position of the end of the rotating cylinder 35, and the inner wall of the through hole 353 is slidably connected to the outer surface of the pull-out member 36.

[0052] In some embodiments, it is a ring-shaped rigid structure, whose outer surface is closely fitted with the inner wall of the annular groove 351 at the end of the rotating drum 35, forming a circumferential limiting and axial guiding fitting sliding pair, which allows the rotating drum 35 to rotate around its own axis during the pulling process, while limiting its radial offset, ensuring that the rotating drum 35 maintains stable operation when the shrimp line is pulled by a high-speed spiral.

[0053] Specifically, the limiting ring 34 is fixed to the end of the extension plate 32 by a snap-fit ​​structure, which facilitates disassembly and maintenance. At the same time, it works with the protective ring 321 to form a double-point support for the rotating cylinder 35, effectively improving the rigidity and motion accuracy of the overall structure.

[0054] Reference Figure 6-8 A locking plate 37 is snapped into the end of the pull-out member 36, and a locking rod 371 is symmetrically snapped into the end of the locking plate 37. The end of the locking rod 371 is snapped into the end of the sliding block 33.

[0055] In some embodiments, the locking plate 37 is securely connected to the pull-out member 36 by a snap or threaded structure to ensure that it does not loosen during high-frequency reciprocating motion; the locking rod 371 is symmetrically arranged in the horizontal direction, and its end is linked with the sliding block 33.

[0056] Specifically, a telescopic component such as an electric telescopic rod is provided between the locking plate 37 and the connecting plate 31, and is connected to an external control device. When the locking plate 37 is moved by the electric telescopic rod, the locking rod 371 and the pull-out component 36 are moved simultaneously, thereby driving the sliding block 33 to slide along the guide groove on the inner wall of the extension plate 32. The movement of the sliding block 33 is converted into the rotational motion of the rotating cylinder 35 around its own axis through the cooperation with the arc groove 352 on the outer surface of the rotating cylinder 35. At the same time, due to the sliding connection between the through hole 353 and the pull-out component 36, the pull-out component 36 obtains a rotational action simultaneously during the axial movement.

[0057] This combined motion causes the shrimp line held by the locking element 381 to both translate along the axial direction and rotate around its own axis when it is pulled out, effectively simulating the operation logic of "pulling while rotating" by humans. This significantly reduces the adhesion resistance between the shrimp line and the shrimp body tissue, and avoids the shrimp line breaking or the shrimp meat tearing caused by straight-line hard pulling.

[0058] The control device can choose a microcontroller as the control terminal. In this embodiment, the microcontroller is a typical embedded microcontroller unit, consisting of an arithmetic logic unit (ALU), a controller, memory, input / output devices, etc., essentially a miniature computer. Compared to general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its biggest advantage is its small size, allowing it to be placed inside the instrument, but it has limited storage capacity, simple input / output interfaces, and low power consumption.

[0059] Working principle: When in use, the crayfish to be processed are placed into the limiting groove of the conveyor 11 in sequence. The conveyor 11 drives the crayfish to move in a direction to the inlet end of the correction component 2, ensuring that the naturally curved part of the tail accurately enters the correction area.

[0060] Subsequently, the power plate 25 starts to rotate under the action of the drive motor, and pushes the drive rod 241 to reciprocate through the power groove 251. Then, the motion is transmitted to the moving part 27 through the drive block 24 and the push plate 23, so that the straightening part 271 gradually pushes and presses each segment of the shrimp tail, gradually flattening and curling the tail.

[0061] When the exposed end of the shrimp vein is fully exposed and stably positioned near the axis of the through hole 353 of the rotating drum 35, the control device triggers the locking member 381 to close, clamping the end of the shrimp vein.

[0062] At the same time, the electric telescopic rod drives the locking plate 37 to move backward, causing the pull-out piece 36 to exit axially along the through hole 353. The sliding block 33 then slides along the inner wall of the extension plate 32 and drives the rotating drum 35 to rotate synchronously through the cooperation with the arc groove 352.

[0063] Thus, the shrimp vein simultaneously achieves axial translation and circumferential rotation during the pulling process, and is continuously extracted in a way that is low-resistance and has a high integrity rate.

[0064] After the shrimp vein is removed, the device automatically resets, and the conveyor 11 moves the processed shrimp out of the workstation while the next shrimp enters, thus achieving continuous operation.

[0065] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An energy-saving crayfish cleaning and impurity removal device, characterized in that, Includes a base (1) and a conveyor (11) for driving material transfer; The correction component (2) is located at the end of the base (1) and includes a floating part that slides along the head and tail direction of the crayfish. The outer surface of the floating part is in contact with the tail of the crayfish and has an arc-shaped contact surface that matches the outline of the crayfish tail segment. Through the gradual pressing of the arc-shaped contact surface, the naturally curled tail segment is flattened from the end to the root. When the floating part moves along a preset direction under the action of external force, it drives the arc-shaped contact surface to slide synchronously along the contour of the crayfish tail, continuously applying reverse pushing force that matches the degree of curvature of the tail segment at each position, thereby flexibly correcting the naturally curled tail.

2. The energy-saving crayfish cleaning and impurity removal device according to claim 1, characterized in that, The floating part includes a moving part (27) and a correcting part (271). The ends of the correcting part (271) are evenly distributed along the side of the moving part (27) to drive the crayfish tail from a bent state to a flattened state. When the correcting part (271) moves back and forth with the moving part (27), its ends contact and push the crayfish tail segments in sequence. Through gradual force application, the tail segments are gradually unfolded to form an approximately horizontal posture. The correction component (2) also includes a positioning plate (21) that is snapped into the base (1). A limiting plate (22) is symmetrically snapped into the end of the positioning plate (21), and a limiting groove (221) is provided at the end of the limiting plate (22).

3. The energy-saving crayfish cleaning and impurity removal device according to claim 2, characterized in that, A drive block (24) is rotatably provided at the end of the limiting plate (22) and near the center. A drive rod (241) is rotatably provided at one end of the drive block (24), and a push plate (23) is rotatably provided at the other end. A fitting block (231) is fixedly provided on one side of the push plate (23), and the outer surface of the end of the fitting block (231) is slidably connected to the inner wall of the limiting groove (221).

4. The energy-saving crayfish cleaning and impurity removal device according to claim 3, characterized in that, A power plate (25) and a power gear (26) are rotatably arranged at the middle position of the end of the limiting plate (22). A power groove (251) is opened at the end of the power plate (25). The inner wall of the power groove (251) is slidably connected to the outer surface of the drive rod (241).

5. The energy-saving crayfish cleaning and impurity removal device according to claim 4, characterized in that, The end of the push plate (23) is fitted and slidably connected to the end of the moving part (27). A protective groove (272) is provided on the side of the moving part (27). A movable plate (28) is slidably provided on the inner wall of the protective groove (272). The outer surface of the movable plate (28) meshes with the outer surface of the power gear (26).

6. The energy-saving crayfish cleaning and impurity removal device according to claim 1, characterized in that, It also includes a pull-out assembly (3), which is located at the end of the base (1). The pull-out assembly (3) includes a pull-out member (36), a support member (38), and a locking member (381). The end of the pull-out member (36) is engaged with the end of the support member (38), and the end of the locking member (381) is slidably fitted onto the end of the support member (38). When the locking member (381) locks the exposed end of the shrimp line at the tail of the crayfish, it moves along the extension direction of the shrimp line in conjunction with the pull-out member (36), so that the shrimp line is continuously pulled out in a rotating state, simulating the action of manually rotating and pulling the shrimp line. The pull-out assembly (3) also includes a connecting plate (31) that is snapped into the base (1). An extension plate (32) is symmetrically fixed at the end of the connecting plate (31), and a protective ring (321) is snapped into the end of the extension plate (32). The inner wall of the extension plate (32) is slidably provided with a sliding block (33).

7. The energy-saving crayfish cleaning and impurity removal device according to claim 6, characterized in that, The end of the extension plate (32) is fitted with a limiting ring (34), and the end of the protective ring (321) is rotatably fitted with a rotating cylinder (35). The end of the rotating cylinder (35) is provided with an annular groove (351), and the inner wall of the annular groove (351) is fitted and slidably connected to the outer surface of the limiting ring (34).

8. The energy-saving crayfish cleaning and impurity removal device according to claim 7, characterized in that, The outer surface of the rotating cylinder (35) is provided with an arc-shaped groove (352), and the inner wall of the arc-shaped groove (352) is slidably connected to the outer surface of the sliding block (33).

9. The energy-saving crayfish cleaning and impurity removal device according to claim 8, characterized in that, A through hole (353) is provided at the middle position of the end of the rotating cylinder (35), and the inner wall of the through hole (353) is slidably connected to the outer surface of the pull-out member (36).

10. An energy-saving crayfish cleaning and impurity removal device according to claim 9, characterized in that, The end of the pull-out member (36) is fitted with a locking plate (37), and the end of the locking plate (37) is symmetrically fitted with a locking rod (371). The end of the locking rod (371) is fitted with the end of the sliding block (33).

Images