Equipment for removing internal organs of snakehead

Abstract

The utility model discloses equipment for removing internal organs of snakeheads, and relates to the technical field of snakehead processing, the equipment comprises a placing rack, a placing groove for placing snakeheads is arranged at the middle position of the placing rack, two limiting rods are symmetrically arranged at two sides above the placing rack, two mounting rods are symmetrically arranged at the side ends of the placing rack, and the mounting rods are arranged at two ends of the placing rack. The two mounting rods are symmetrically located on the two sides of the containing groove. Fixing assemblies used for fixing snakeheads are arranged on the two limiting rods, the fixing ends of the fixing assemblies are located over the containing grooves, and the fixing ends of the fixing assemblies can vertically move into the containing grooves on the two limiting rods; and an abdomen cutting assembly is arranged on the two mounting rods, and the abdomen cutting assembly horizontally corresponds to the placement groove on one side of the placement frame. According to the device, the problem that many defects exist when the viscera of the snakehead are removed purely manually in the prior art is solved in a manual and machine matching mode.

Description

Technical Field

[0001] This utility model relates to the field of snakehead fish processing technology, and in particular to a device for removing the internal organs of snakehead fish. Background Technology

[0002] Snakehead fish, native to Africa, are tropical fish with over 100 species including subspecies. They are characterized by rapid growth, high yield, omnivorous diet, low disease incidence, and high reproductive capacity. Gutting is a crucial step in snakehead processing. Currently, most snakehead processing companies still rely on manual labor for this operation, but this traditional method has numerous drawbacks. Firstly, workers frequently use knives with one hand while holding the snakehead with the other, increasing the risk of cuts and injuries, posing significant safety threats. Secondly, manual gutting is extremely labor-intensive and time-consuming, requiring workers to endure long hours of high-intensity labor, leading to physical and mental exhaustion. From a production efficiency perspective, the gutting process is very inefficient, far from meeting the growing market demand. Furthermore, because snakehead are not inanimate objects, manual operation is difficult to control precisely while they are moving, resulting in inconsistent incision locations and sizes, significantly reducing accuracy and affecting subsequent processing and the overall quality of the product. Utility Model Content

[0003] This utility model provides a device for removing the internal organs of snakehead fish to solve the problems in the background art.

[0004] The present invention adopts the following technical solution: a device for removing the internal organs of a snakehead fish includes a placement rack with a placement groove for placing the snakehead fish in the middle. Two limiting rods are symmetrically arranged on both sides of the upper part of the placement rack, and two mounting rods are symmetrically arranged on the side ends of the placement rack. The two mounting rods are symmetrically located on both sides of the placement groove. Fixing components for fixing the snakehead fish are provided on the two limiting rods. The fixing end of the fixing component is located directly above the placement groove, and the fixing end of the fixing component can move vertically into the placement groove on the two limiting rods. A evisceration component is provided on the two mounting rods. The evisceration component is horizontally aligned with the placement groove on one side of the placement rack, and the evisceration component can move horizontally on one side of the placement rack. The cutting end of the evisceration component can move into the placement groove to contact the snakehead fish. The evisceration component can cut open the snakehead fish fixed in the placement groove and remove its internal organs.

[0005] Furthermore, one of the limiting rods has a threaded groove at its bottom end, and the fixing component can be fixed in position on the limiting rod by the threaded groove at the bottom end of one of the limiting rods; each mounting rod is provided with a spring, and the gutting component can automatically reset after the gutting of the blackfish is completed when it moves on the two mounting rods.

[0006] Furthermore, the fixing assembly includes a fixing plate, a connecting plate, a connecting block, and a fixing bolt. The upper end of the fixing plate is provided with multiple springs, and the bottom end of the fixing plate is made of a soft material. The connecting plate is located above the fixing plate and connected to the multiple springs. Two connecting blocks are symmetrically arranged on both sides of the connecting plate. Each connecting block is slidably mounted on a limiting rod. The connecting plate is slidably mounted on two limiting rods via the two connecting blocks. A fixing bolt is placed above one of the connecting blocks. The fixing bolt is slidably located on the limiting rod, and the fixing bolt corresponds to a threaded groove at the bottom end of the limiting rod. The fixing bolt can fix the connecting block to the limiting rod, preventing it from moving upwards.

[0007] Furthermore, the ventral cutting assembly includes a mounting bracket, a connecting bracket, a handle, and a cutting blade. The two ends of the mounting bracket are respectively mounted on two mounting rods, and the mounting bracket can move on the two mounting rods toward one side of the placement slot. The connecting bracket is mounted on the mounting bracket and can slide and rotate at an angle on the mounting bracket. The handle and the cutting blade are respectively disposed on both sides of the connecting bracket. The cutting blade is located on one side of the placement slot on the connecting bracket, and the handle is located on the opposite side of the cutting blade on the connecting bracket.

[0008] Furthermore, the mounting bracket consists of two sliding mounting plates and a fixed rod. Each sliding mounting plate is slidably mounted on a mounting rod, and the sliding mounting plate is in contact with a spring on the mounting rod. The fixed rod is disposed between the two sliding mounting plates.

[0009] Furthermore, the connecting frame is composed of a sliding rod, a rotating connector, and an outer frame. The sliding rod is slidably mounted on the fixed rod. There are two sets of rotating connectors, which are symmetrically arranged on both sides of the sliding rod. The outer frame is located on the outside of the sliding rod, and the inner wall of the outer frame is connected to the two rotating connectors. The outer frame can be adjusted in multiple angles on the sliding rod through the two rotating connectors. The connection between the outer frame and the sliding rod allows the cutting blade on the outer frame to rotate and tilt after cutting the blackfish, sliding inside the blackfish's belly to remove its internal organs.

[0010] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0011] In this application, after the snakehead fish is placed in the placement slot of the placement rack, the fixing components on the limiting rods on both sides above the placement rack can firmly fix the snakehead fish, effectively preventing the fish from struggling and twisting during processing. The evisceration component installed on the mounting rod at the side end of the placement rack is driven by the operator. During operation, it can move laterally smoothly and quickly along the mounting rod, and the cutting end accurately probes into the placement slot, instantly cutting open the snakehead fish's abdomen. Thanks to the carefully designed cutting blade, its sharpness is sufficient to easily penetrate the tough outer skin and fascia of the snakehead fish's abdomen, resulting in a clean and regular cut, minimizing the impact on the quality of the fish meat. Furthermore, after cutting open the fish's abdomen, the internal organs can be removed. This application solves the problem of many defects in the existing technology of purely manual removal of snakehead fish's internal organs by combining manual and machine methods. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 This is a partial structural schematic diagram of the present invention;

[0016] Figure 4 This is a partial schematic diagram of the slit-cutting component in this utility model.

[0017] Reference numerals: Placement frame 1, Placement slot 11, Limiting rod 12, Threaded groove 121, Mounting rod 13, Spring 131, Fixing component 2, Fixing plate 21, Spring 211, Connecting plate 22, Connecting block 23, Fixing bolt 24, Cutting component 3, Mounting frame 31, Connecting frame 32, Handle 33, Cutting blade 34, Mounting frame 31, Sliding mounting plate 311, Fixing rod 312, Connecting frame 32, Sliding rod 321, Rotating connector 322, Outer frame 323. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0020] Reference Figures 1-4 This utility model provides a device for removing the internal organs of a snakehead fish, including a placement rack 1. A placement groove 11 for placing the snakehead fish is provided in the middle of the placement rack 1. Two limiting rods 12 are symmetrically arranged on both sides of the upper part of the placement rack 1. Two mounting rods 13 are symmetrically arranged on the side ends of the placement rack 1, and the two mounting rods 13 are symmetrically located on both sides of the placement groove 11. Fixing components 2 for fixing the snakehead fish are provided on the two limiting rods 12. The fixing end of the fixing component 2 is located directly above the placement groove 11, and the fixing end of the fixing component 2 can move vertically on the two limiting rods 12 into the placement groove 11. A evisceration component 3 is provided on the two mounting rods 13. The evisceration component 3 is horizontally aligned with the placement groove 11 on one side of the placement rack 1, and the evisceration component 3 can move horizontally on one side of the placement rack 1. The cutting end of the evisceration component 3 can move into the placement groove 11 to contact the snakehead fish. The evisceration component 3 can cut open the snakehead fish fixed in the placement groove 11 and remove its internal organs.

[0021] In this application, after the snakehead fish is placed in the placement slot 11 of the placement rack 1, the fixing component 2 located on the limiting rods 12 on both sides above the placement rack 1 quickly comes into play. Its fixing end slides smoothly and vertically down along the limiting rod 12, accurately reaching the placement slot 11, and firmly fixing the snakehead fish with just the right amount of pressure. This process is fast and precise, effectively avoiding the fish struggling and twisting during processing, ensuring not only the safety of subsequent operations, but also allowing each snakehead fish to face the cutting process in a standard posture, laying a solid foundation for the batch and efficient processing of snakehead fish internal organs. Whether it is a slightly larger mature snakehead fish or a relatively small juvenile fish, the fixing component 2 can flexibly adjust the fixing force and contact area according to the size of the fish, ensuring a stable clamping and greatly improving the applicability of the equipment. Immediately afterwards, the evisceration component 3 installed on the side mounting rod 13 of the placement rack 1 is driven by the operator. It perfectly aligns horizontally with the placement slot 11. Once activated, it moves smoothly and quickly laterally along the mounting rod 13, its cutting end precisely penetrating the placement slot 11 and instantly slicing open the snakehead's abdomen. Thanks to the meticulously designed cutting blade 34, its sharpness is sufficient to easily penetrate the tough outer skin and fascia of the snakehead's abdomen, resulting in a clean and regular cut that minimizes the impact on the quality of the fish meat. Furthermore, it can remove the internal organs after cutting open the fish's abdomen. This application solves the problem of numerous defects in the existing technology of purely manual removal of snakehead's internal organs by combining manual and machine methods.

[0022] Preferably, one of the limiting rods 12 has a threaded groove 121 at its bottom end, and the fixing component 2 can be fixed in position on the limiting rod 12 by the threaded groove 121 at the bottom end of one of the limiting rods 12; each of the mounting rods 13 is provided with a spring 131, and the gutting component 3 can automatically reset after the gutting of the black carp is completed when it moves on the two mounting rods 13.

[0023] In the intricate construction of the equipment, a threaded groove 121 is specially designed at the bottom of one of the limiting rods 12. This seemingly insignificant detail plays a crucial role. After the fixing component 2 completes its fixation of the snakehead fish according to the operating procedure—that is, its fixing end moves vertically down along the limiting rod 12 to the appropriate position and firmly presses down on the fish—the operator can use the threaded groove 121 for secondary reinforcement to ensure that the fixing component 2 will not loosen during subsequent high-vibration and easily displaced operations such as gutting and cleaning. Through matching threaded components, such as a screw with a nut, the fixing component 2 is tightly locked in its current position. This design greatly enhances the reliability of the fixation, making the snakehead fish completely immobile throughout the entire processing, as if nailed to a cutting board, thus ensuring precise and efficient gutting.

[0024] Furthermore, the presence of the threaded groove 121 facilitates equipment debugging and maintenance. During the initial installation and debugging phase, technicians can finely adjust the initial height of the fixed component 2 on the limit rod 12 based on its actual running trajectory and compatibility with the placement groove 11. Then, the threaded groove 121 is used for precise locking, ensuring the equipment is ready for production from the outset. Simultaneously, if displacement deviations are found in the fixed component 2 during routine maintenance, it can be quickly recalibrated using the threaded groove 121, reducing equipment downtime and improving production continuity.

[0025] Each mounting rod 13 is carefully fitted with a spring 131, giving the evisceration assembly 3 an intelligent automatic reset characteristic. When the evisceration assembly 3 moves horizontally along the mounting rod 13 under the operator's command, and the cutting end smoothly cuts into the placement groove 11, accurately opening the belly of the snakehead fish and completing the task of cleaning the internal organs, the evisceration assembly 3 will have a certain displacement tendency due to inertia and the force exerted during the cutting process. However, the elasticity of the spring 131 plays a crucial role at this time, like two invisible hands, gently pulling the evisceration assembly 3 back to its initial position.

[0026] This automatic reset function brings several significant benefits. First, from the perspective of simplifying the operation process, operators no longer need to manually return the evisceration component 3 to its original position after each evisceration and cleaning, reducing unnecessary steps, lowering labor intensity, and making the entire processing process smoother and more efficient. Second, considering the service life and stability of the equipment, automatic reset avoids collisions and friction between the evisceration component 3 and other parts caused by human error, reducing wear and tear and extending the overall service life of the equipment. Furthermore, since spring 131 ensures that the evisceration component 3 always accurately resets to the same initial position, it provides a stable starting point for the next evisceration operation, ensuring consistent precision in each cut and viscera cleaning, further improving product quality stability. For large-scale fishery processing, this stability is a key factor in ensuring production efficiency and product reputation.

[0027] Preferably, the fixing component 2 includes a fixing plate 21, a connecting plate 22, a connecting block 23, and a fixing bolt 24. The upper end of the fixing plate 21 is provided with multiple springs 211, and the bottom end of the fixing plate 21 is made of a soft material. The connecting plate 22 is located above the fixing plate 21 and is connected to the multiple springs 211. Two connecting blocks 23 are symmetrically arranged on both sides of the connecting plate 22. Each connecting block 23 is slidably mounted on a limiting rod 12. The connecting plate 22 is slidably mounted on the two limiting rods 12 through the two connecting blocks 23. A fixing bolt 24 is placed above one of the connecting blocks 23. The fixing bolt 24 is slidably located on the limiting rod 12, and the fixing bolt 24 corresponds to the threaded groove 121 provided at the bottom end of the limiting rod 12. The fixing bolt 24 can fix the connecting block 23 on the limiting rod 12, preventing it from moving upward.

[0028] As one of the components that directly contacts the snakehead fish, the fixing plate 21 has multiple springs 211 evenly distributed on its upper end, forming a buffer. When the snakehead fish is placed in the placement slot 11, the fixing component 2 begins to work. When the fixing plate 21 presses down to contact the fish body, the springs 211, with their elastic deformation characteristics, effectively buffer the impact force generated at the moment of contact. This not only avoids damage to the snakehead fish's body surface due to hard collisions, ensuring that the fish's appearance quality is not affected, but also adapts to fish bodies of different thicknesses and hardnesses to a certain extent. For example, for some snakehead fish with a slightly larger body and firm muscles, the springs 211 can be moderately compressed, while for relatively thin individuals, the springs 211 will not be over-compressed, always maintaining a balanced state that can fix the fish without causing harm. The coordinated cooperation of the springs 211, the fixing plate 21, and the connecting plate 22 gives the fixing component 2 excellent self-adaptive fixing ability. As the fish's body undulates, spring 211 continuously adjusts its compression, causing the fixing plate 21 to fit tightly against the fish's contours, achieving a comprehensive and seamless fixation. This adaptive characteristic allows the equipment to handle snakehead fish of different sizes and shapes, greatly expanding its applicability. It eliminates the need for frequent adjustments to fixing parameters for each type of fish, significantly improving processing efficiency.

[0029] Preferably, the ventral cut assembly 3 includes a mounting frame 31, a connecting frame 32, a handle 33, and a cutting blade 34. The two ends of the mounting frame 31 are respectively mounted on two mounting rods 13, and the mounting frame 31 can move on the two mounting rods 13 toward one side of the placement groove 11. The connecting frame 32 is mounted on the mounting frame 31, and the connecting frame 32 can slide and rotate at an angle on the mounting frame 31. The handle 33 and the cutting blade 34 are respectively disposed on both sides of the connecting frame 32. The cutting blade 34 is located on one side of the placement groove 11 on the connecting frame 32, and the handle 33 is located on the opposite side of the cutting blade 34 on the connecting frame 32.

[0030] The mounting bracket 31 serves as the basic support structure for the gutting assembly 3, with both ends firmly fixed to the two mounting rods 13, forming a stable lateral movement platform. This design allows the mounting bracket 31 to slide freely along the mounting rods 13 towards the placement slot 11, much like a train traveling on tracks—precise and smooth. The operator only needs to gently push the mounting bracket 31, and it will respond quickly, precisely bringing the cutting blade 34 to the predetermined position above the snakehead. This convenient translation operation greatly improves the efficiency of the initial cutting action, ensuring that when processing a large number of snakehead, each fish can be cut promptly and accurately, saving precious time in the entire viscera processing procedure.

[0031] Because snakehead fish vary in size and shape, the flexible translation capability of the mounting frame 31 is particularly important. For larger snakehead fish, the operator can pull the mounting frame 31 outwards to increase the distance between the cutting blade 34 and the initial contact point with the fish body, ensuring that the cutting path completely covers the fish's belly. For smaller fish, the mounting frame 31 can be slightly adjusted inwards to prevent the cutting blade 34 from cutting too deeply and wasting fish meat. In this way, a single machine can easily handle snakehead fish of various sizes, reducing the impact of fish size differences on processing accuracy and efficiency, and enhancing the machine's versatility.

[0032] The connecting frame 32 is mounted on the mounting frame 31 and has a dual adjustment function: it can slide laterally on the mounting frame 31 and also rotate at an angle. When encountering situations where the fish belly has a large curvature or the fish body is slightly tilted, the operator can slide the connecting frame 32 to fine-tune the lateral position of the cutting blade 34, ensuring that the blade is always precisely aligned with the center of the fish belly. At the same time, rotating the connecting frame 32 can flexibly adjust the cutting angle of the cutting blade 34, allowing the blade to cut through the tough outer skin of the snakehead fish at the most suitable angle, ensuring a flat and smooth cut and reducing damage to the fish meat tissue. This multi-angle adjustment capability makes the cutting process as precise and delicate as that of an experienced surgeon, greatly improving the cutting quality, which is crucial for the processing of high-quality snakehead fish products.

[0033] The flexible adjustment of the connecting frame 32 not only improves cutting quality but also greatly facilitates operation. In actual operation, operators do not need to frequently change cutting tools or adjust the overall layout of the equipment. They can simply operate the connecting frame 32 manually to handle various complex cutting scenarios in real time. This makes the operation process more intuitive and easy to understand, lowers the skill threshold for operators, and allows even novices to quickly get started and master slit-cutting techniques, thereby improving the work efficiency of the entire production team.

[0034] Preferably, the mounting bracket 31 consists of two sliding mounting plates 311 and a fixing rod 312. Each sliding mounting plate 311 is slidably mounted on a mounting rod 13, and the sliding mounting plate 311 contacts a spring 131 on the mounting rod 13. The fixing rod 312 is disposed between the two sliding mounting plates 311.

[0035] The mounting frame 31, consisting of two sliding mounting plates 311 and a fixed rod 312, integrates adaptive sliding characteristics with a stable support structure to create a flexible yet robust basic platform for the gutting component 3. This platform, working in conjunction with spring 131, not only efficiently adapts to different fish sizes, ensuring precise and continuous operation, but also provides a stable and reliable operating environment for components such as the connecting frame 32 and the cutting blade 34. It works in tandem with other components of the equipment to comprehensively enhance the overall performance of the snakehead gutting device.

[0036] Preferably, the connecting frame 32 is composed of a sliding rod 321, a rotating connector 322, and an outer frame 323. The sliding rod 321 is slidably mounted on the fixed rod 312. There are two sets of rotating connectors 322, which are symmetrically arranged on both sides of the sliding rod 321. The outer frame 323 is located on the outside of the sliding rod 321, and the inner wall of the outer frame 323 is connected to the two rotating connectors 322. The outer frame 323 can be adjusted at multiple angles on the sliding rod 321 through the two rotating connectors 322. The connection between the outer frame 323 and the sliding rod 321 allows the cutting blade 34 on the outer frame 323 to rotate and tilt after cutting the blackfish, sliding inside the blackfish's belly to remove its internal organs.

[0037] Two sets of symmetrically arranged rotating connectors 322 on both sides of the sliding rod 321 act like the "joints" of the connecting frame 32, giving the outer frame 323 and even the cutting blade 34 a wide range of rotational freedom. They can rotate flexibly within a certain range, allowing the outer frame 323 to no longer be limited to a single planar angle, but to achieve multi-range three-dimensional angle adjustment. When facing a fish belly with complex curvature, such as an irregularly curved part near the head or tail, the operator can manually adjust the rotating connectors 322 to change the tilt angle of the outer frame 323, thereby allowing the cutting blade 34 to cut at the angle that best fits the curvature of the fish belly, ensuring the flatness of the cut and the smoothness of the cut, reducing unnecessary damage to the fish meat tissue, which is crucial for improving the quality of blackfish products.

[0038] This multi-angle adjustment function not only serves the cutting process but also extends to the viscera cleaning stage. After the cutting blade 34 cuts open the snakehead's abdomen, the flexible rotation of the rotating connector 322 allows the outer frame 323 to adjust the cutting blade 34 to a suitable angle, enabling it to slide smoothly and tilted within the snakehead's abdomen. At this point, the cutting blade 34 transforms from a simple "cutting tool" into a cleaning tool. Utilizing the sharp edge of the blade and the appropriate tilt angle, it gradually peels and scrapes off the viscera attached to the inner wall of the fish's abdomen during the cutting process, achieving a seamless connection between cutting and cleaning. This greatly simplifies the operation process, improves the efficiency of viscera removal, and saves valuable time for large-scale fisheries processing.

[0039] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A device for removing the internal organs of snakehead fish, characterized in that, The device includes a placement rack (1), which has a placement slot (11) for placing blackfish at the middle position. Two limiting rods (12) are symmetrically arranged on both sides above the placement rack (1). Two mounting rods (13) are symmetrically arranged on the side end of the placement rack (1). The two mounting rods (13) are symmetrically located on both sides of the placement slot (11). The two limiting rods (12) are provided with fixing components (2) for fixing the blackfish. The fixing end of the fixing component (2) is located directly above the placement slot (11). The fixing end of the fixing component (2) can be moved vertically on the two limiting rods (12) into the placement slot (11). The two mounting rods (13) are equipped with a ventriloquism assembly (3). The ventriloquism assembly (3) is horizontally aligned with the placement groove (11) on one side of the placement frame (1). The ventriloquism assembly (3) can move horizontally on one side of the placement frame (1). The cutting end of the ventriloquism assembly (3) can move into the placement groove (11) to contact the blackfish. The ventriloquism assembly (3) can cut open the blackfish fixed in the placement groove (11) and remove the internal organs.

2. The device for removing the internal organs of snakehead fish according to claim 1, characterized in that, One of the limiting rods (12) has a threaded groove (121) at its bottom end. The fixing component (2) can fix its position on the limiting rod (12) by the threaded groove (121) at the bottom end of one of the limiting rods (12). Each of the mounting rods (13) is provided with a spring (131), and the evisceration assembly (3) can automatically reset after the snakehead fish is eviscerated when it moves on the two mounting rods (13).

3. The device for removing the internal organs of snakehead fish according to claim 2, characterized in that, The fixing component (2) includes a fixing plate (21), a connecting plate (22), a connecting block (23), and a fixing bolt (24). The upper end of the fixing plate (21) is provided with multiple springs (211). The bottom end of the fixing plate (21) is made of a soft material. The connecting plate (22) is located above the fixing plate (21) and connected to the multiple springs (211). Two connecting blocks (23) are symmetrically arranged on both sides of the connecting plate (22). Each connecting block (23) is slidably mounted on a limiting rod (…). On 12), the connecting plate (22) is slidably mounted on two limiting rods (12) via two connecting blocks (23). A fixing bolt (24) is placed above one of the connecting blocks (23). The fixing bolt (24) is slidably located on the limiting rod (12), and the fixing bolt (24) corresponds to the threaded groove (121) provided at the bottom end of the limiting rod (12). The fixing bolt (24) can fix the connecting block (23) on the limiting rod (12), so that it can no longer move upward.

4. The device for removing the internal organs of snakehead fish according to claim 1, characterized in that, The slit assembly (3) includes a mounting bracket (31), a connecting bracket (32), a handle (33), and a cutting blade (34). The two ends of the mounting bracket (31) are respectively mounted on two mounting rods (13). The mounting bracket (31) can move on the two mounting rods (13) toward one side of the placement slot (11). The connecting bracket (32) is mounted on the mounting bracket (31). The connecting bracket (32) can slide on the mounting bracket (31) and rotate at an angle. The handle (33) and the cutting blade (34) are respectively arranged on both sides of the connecting bracket (32). The cutting blade (34) is located on one side of the placement slot (11) on the connecting bracket (32), and the handle (33) is located on the opposite side of the cutting blade (34) on the connecting bracket (32).

5. The device for removing the internal organs of snakehead fish according to claim 4, characterized in that, The mounting bracket (31) consists of two sliding mounting plates (311) and a fixed rod (312). Each sliding mounting plate (311) is slidably mounted on a mounting rod (13), and the sliding mounting plate (311) is in contact with a spring (131) on the mounting rod (13). The fixed rod (312) is disposed between the two sliding mounting plates (311).

6. The device for removing the internal organs of snakehead fish according to claim 5, characterized in that, The connecting frame (32) is composed of a sliding rod (321), a rotating connector (322), and an outer frame (323). The sliding rod (321) is slidably mounted on the fixed rod (312). There are two sets of rotating connectors (322), which are symmetrically arranged on both sides of the sliding rod (321). The outer frame (323) is located on the outside of the sliding rod (321), and the inner wall of the outer frame (323) is connected to the two rotating connectors (322). The outer frame (323) can be adjusted in multiple ranges on the sliding rod (321) through the two rotating connectors (322).

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