Biochemical detection biological peptide extraction device

Abstract

This invention relates to the technical field of extraction devices, and discloses a biopeptide extraction device for biochemical detection. The device includes an extraction tank, a stirring shaft rotatably connected inside the extraction tank, and a guide ring fixedly connected inside the extraction tank. The number of segmented rings is half the number of outer rings, allowing a slider to move horizontally reciprocating a distance at different times. Simultaneously, the slider causes the segmented rings to move vertically reciprocating synchronously. The slider drives the outer blades to perform differentiated horizontal reciprocating motions. Utilizing the diameter differences in different sections of the guide ring, the outer blades create a wide-range sweeping motion in the radial direction, covering areas that are difficult for traditional stirring blades to reach, such as the inner wall of the extraction tank. This effectively prevents the solid biomaterial from settling and accumulating at the radial edges, and the segmented blades precisely disturb the material in each area, eliminating axial stirring blind spots in the upper and lower areas of the extraction tank. The combined stirring action of these two actions constructs a composite flow field, ensuring that the solid biomaterial in all areas of the tank can fully contact the extraction solvent.

Description

Technical Field

[0001] This invention relates to the technical field of extraction devices, and more particularly to a biopeptide extraction device for biochemical detection. Background Technology

[0002] Biopeptide extraction involves first placing crushed and ground biological raw materials into an extraction tank, then injecting a suitable extraction solvent according to a preset solid-liquid ratio. After sealing, the extraction temperature, stirring speed, and time parameters are set. Subsequently, the stirring system is started to drive the stirring paddle to rotate, so that the raw materials are uniformly suspended in the solvent to form turbulence, which enhances solvent penetration to accelerate the release of intracellular biopeptides and their diffusion into the solvent. During the process, a constant temperature is maintained to avoid damage to peptide activity. After stirring, the material is allowed to stand, and the peptide-containing filtrate is collected for further purification.

[0003] However, in existing technologies, an effective flow field covering the entire extraction tank cannot be formed, resulting in a significant stirring blind zone. Within this blind zone, solid-phase biological raw materials are prone to local sedimentation, accumulation, or aggregation due to insufficient fluid driving force. This makes it difficult for these materials to achieve sufficient and uniform contact with the extraction solvent. Some materials in the non-blind zone, where stirring is sufficient, may be extracted due to excessive stirring, consuming too much solvent and potentially causing initial damage to the bioactive peptides due to excessive local shear forces. Meanwhile, materials in the blind zone are not fully extracted, leaving a large amount of target bioactive peptides that cannot dissolve, ultimately leading to a significant decrease in the overall extraction rate. Furthermore, the existence of the stirring blind zone disrupts the concentration balance of the extraction system, causing an imbalance where the local solvent concentration is too high or too low, leading to heat transfer at the solvent-raw material interface. Mass resistance barriers significantly weaken mass transfer dynamics, further delaying the extraction process and exacerbating the reduction in extraction efficiency. To compensate for the blind spots caused by the single-blade structure, existing technologies generally adopt passive coping methods such as increasing stirring speed or enlarging blade size. However, this solution leads to a sharp increase in motor energy consumption. Even if the stirring intensity is enhanced by increasing the speed or size, it cannot change the flow field characteristics and still cannot form a composite flow field with axial and radial coordinated circulation. As a result, the energy transfer efficiency remains at a low level. A large amount of energy input during stirring is not effectively used to enhance the mixing and contact between raw materials and solvents. Instead, most of it is converted into heat energy, which indirectly leads to an abnormal increase in the temperature inside the tank and seriously affects the quality of the extracted product, failing to meet the accuracy and stability requirements of biochemical detection for biopeptide extraction. Summary of the Invention

[0004] The purpose of this invention is to provide a biopeptide extraction device for biochemical detection, thereby solving the problem of insufficient biopeptide extraction efficiency.

[0005] The technical solution of the present invention is as follows: a biopeptide extraction device for biochemical detection, comprising an extraction tank, a stirring shaft rotatably connected inside the extraction tank, a guide ring fixedly connected inside the extraction tank, two slide bars horizontally slidably connected to the outside of the stirring shaft, multiple outer blades and collars fixedly connected to the outside of the slide bars, a connecting rod rotatably connected to the collar at one end, and multiple dividing rings equidistantly arranged and vertically slidably connected to the outside of the stirring shaft, the other end of the connecting rod being hinged to the dividing rings, two connecting rods connecting the collars and the dividing rings, the number of dividing rings being half the number of collars, and when the stirring shaft rotates, causing the slide bars to move horizontally reciprocatingly a different distance, while simultaneously causing the dividing rings to move vertically reciprocatingly through the slide bars.

[0006] Furthermore, the interior of the guide ring is divided into multiple groove segments, a primary convex segment, and a secondary convex segment. These multiple groove segments, primary convex segments, and secondary convex segments are arranged at equal angles, and the diameter of the primary convex segment is smaller than that of the secondary convex segment.

[0007] Furthermore, the stirring shaft includes a rotating shaft rotatably connected inside the extraction tank, multiple mixing blades and guide blocks equidistantly arranged and fixedly connected to the outside of the rotating shaft, an upper guide rod fixedly connected to the top of the rotating shaft, a lower guide rod fixedly connected to the bottom of the rotating shaft, and a spring connected between the slide bar and the lower guide rod. The upper guide rod and the lower guide rod are parallel, and the upper guide rod and the mixing blades are staggered.

[0008] Furthermore, a rotating wheel is rotatably connected to the top of the slide bar, the rotating wheel is in contact with the inside of the guide ring, the top of the slide bar is slidably connected to the outside of the upper guide rod, and the bottom of the slide bar is slidably connected to the outside of the lower guide rod.

[0009] Furthermore, a single segmenting ring is slidably connected between two guide blocks, the guide blocks having vertical slots.

[0010] Furthermore, the groove segment, the first convex segment, and the second convex segment are staggered and smoothly transitioned, and the number of the groove segment, the first convex segment, and the second convex segment is even.

[0011] Furthermore, the outer blade is located between the two connecting rods and does not contact the collar.

[0012] Furthermore, when the rotating wheel is located in the middle of the groove section, the dividing ring is located at the bottom end of the vertical groove opening.

[0013] Furthermore, the dividing ring includes two sliding shafts that are slidably connected inside the corresponding vertical slots, and two dividing blades that are connected between the two sliding shafts, with one end of the connecting rod hinged to the sliding shaft.

[0014] Furthermore, the top of the extraction tank is provided with a drive motor and a diverter pipe. The drive motor is fixedly connected to the extraction tank, and the output end of the diverter pipe is fixedly connected to the top end of the rotating shaft.

[0015] The beneficial effects of this invention are: The outer blades are driven by a slider to perform differentiated horizontal reciprocating motion. With the help of the diameter difference of different sections of the guide ring, the outer blades can form a wide range of sweeping motion in the radial direction, which can cover areas that are difficult to reach by traditional stirring blades, such as the inner wall of the extraction tank. This effectively avoids the sedimentation and accumulation of solid biological raw materials at the radial edge. Multiple equally distributed dividing rings divide the material in the tank into independent stirring zones along the axial direction. The dividing rings move vertically and reciprocating synchronously with the slider, driving the dividing blades to precisely disturb the material in each zone. This eliminates the axial stirring blind zone in the upper and lower areas of the extraction tank. The two stirring actions work together to create a composite flow field, ensuring that the solid raw materials in all areas of the tank can fully contact the extraction solvent.

[0016] The axial reciprocating motion of the dividing ring breaks down the concentration stratification of materials in the axial direction, accelerates the rapid exchange of materials and solvents in the upper and lower regions of the tank, and disturbs the contact interface between the solvent and the raw material, destroying the mass transfer resistance barrier, reducing mass transfer resistance, and accelerating the release and diffusion of intracellular bioactive peptides. Furthermore, the differentiated reciprocating movement distance of the outer blades forms a reasonable stirring intensity gradient, and a stronger stirring intensity is used for the edge area of ​​the extraction tank to ensure sufficient material disturbance and avoid damage to the spatial structure of bioactive peptides due to excessive stirring. This allows the device to significantly improve extraction efficiency while preserving the activity of bioactive peptides and ensuring the high quality of the test samples.

[0017] The guide ring, with its inner ring and rotating wheel at the top of the slide bar, effectively reduces frictional resistance and minimizes component wear. The upper and lower guide rods, arranged in parallel, form a double guide rail, providing balanced support for the horizontal movement of the slide bar and preventing vertical movement. Each component adopts a modular design, making the structure simple and easy to disassemble. This facilitates the replacement of worn parts, reducing downtime for maintenance. The overall structure is stable and reliable, with a low failure rate, extending the overall service life of the equipment and lowering maintenance costs and the barrier to entry for use. Attached Figure Description

[0018] Figure 1 This is a first-view three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the extraction tank of the present invention; Figure 3 For the present invention Figure 2 Sectional view at point AA; Figure 4 This is a schematic diagram of a partial structure of the present invention; Figure 5 This is a schematic diagram of the guide ring structure of the present invention; Figure 6This is a schematic diagram of the structure of the stirring shaft of the present invention; Figure 7 This is a schematic diagram of the connecting rod of the present invention; Figure 8 This is a schematic diagram of the segmentation ring structure of the present invention.

[0019] In the picture: 1. Extraction tank; 101. Drive motor; 102. Diverter pipe; 2. Stirring shaft; 21. Rotating shaft; 22. Mixing blade; 23. Guide block; 231. Vertical slot; 24. Upper guide rod; 25. Lower guide rod; 26. Spring; 3. Guide ring; 31. Groove section; 32. First convex section; 33. Secondary convex section; 4. Sliding bar; 41. Rotating wheel; 5. Outer blade; 6. Collar; 7. Connecting rod; 8. Dividing ring; 81. Sliding shaft; 82. Dividing blade. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-8 This invention provides a biopeptide extraction device for biochemical detection, comprising an extraction tank 1, a stirring shaft 2 rotatably connected inside the extraction tank 1, a guide ring 3 fixedly connected inside the extraction tank 1, two slide bars 4 horizontally slidably connected to the outside of the stirring shaft 2, multiple outer blades 5 and collars 6 fixedly connected to the outside of the slide bars 4, a connecting rod 7 rotatably connected to the collar 6 at one end, and multiple dividing rings 8 equidistantly arranged and vertically slidably connected to the outside of the stirring shaft 2. The other end of the connecting rod 7 is hinged to the dividing rings 8. Two connecting rods 7 connect the collars 6 and the dividing rings 8. The number of dividing rings 8 is half the number of collars 6. When the stirring shaft 2 rotates, the slide bars 4 move horizontally back and forth a distance, and the dividing rings 8 move synchronously vertically back and forth through the slide bars 4.

[0022] Specifically, when the stirring shaft 2 rotates, the slide bar 4 moves horizontally back and forth along the stirring shaft 2, and the reciprocating distance of the slide bar 4 varies. This differentiated horizontal reciprocating motion drives the outer blades 5 to form a wide-range and differentiated stirring effect in the radial direction, significantly expanding the radial stirring coverage area. Especially for the radial area near the inner wall of the extraction tank 1, which is difficult for traditional impellers to reach, the reciprocating sweeping motion of the outer blades 5 effectively disturbs the material in this area, preventing the solid biological raw materials from settling and accumulating at the radial edge. Simultaneously, the differentiated moving distance results in varying stirring intensity of the outer blades 5 at different radial positions. The gradient design ensures thorough mixing of materials in the edge areas while preventing damage to the bioactive peptides in the core areas due to over-mixing. Connecting rod 7 serves to transmit power between the radial and axial mixing components, converting the horizontal reciprocating motion of slide bar 4 into the vertical reciprocating motion of the dividing ring 8. This ensures the synchronization of radial and axial mixing, allowing the equipment to generate both radial disturbance and axial circulation simultaneously during operation. The symmetrical arrangement of the two connecting rods 7 ensures more even force distribution on the dividing ring 8, preventing tilting or jamming during vertical reciprocating motion and guaranteeing axial mixing. The stability and uniformity of the mixing are ensured by the vertical reciprocating motion of the dividing ring 8 along the stirring shaft 2 driven by the connecting rod 7. This achieves axial segmentation and disturbance of the material inside the extraction tank 1. On the one hand, the multiple equidistant dividing rings 8 can divide the material inside the extraction tank 1 into multiple independent stirring zones along the axial direction. The vertical reciprocating motion of each dividing ring 8 can precisely disturb the material in the corresponding zone, effectively eliminating the axial stirring blind zone in the upper and lower areas of the extraction tank 1 in existing equipment, and avoiding the sedimentation and accumulation of solid raw materials in the axial direction. On the other hand, the vertical reciprocating motion of the dividing ring 8 can break up the material in the axial direction. Concentration stratification promotes rapid exchange of materials and solvents in the upper and lower regions of extraction tank 1. Furthermore, the movement of the dividing ring 8 can disturb the contact interface between the solvent and the raw material, breaking down the mass transfer resistance barrier formed in the existing equipment, reducing mass transfer resistance, enhancing mass transfer dynamics, and accelerating the release and diffusion of intracellular bioactive peptides, thereby improving extraction efficiency. In addition, the axial stirring action of the dividing ring 8 and the radial stirring action of the outer blade 5 work together to ultimately form a composite flow field covering the entire area, ensuring that the solid raw material in all regions of extraction tank 1 can fully and uniformly contact the extraction solvent, ensuring full extraction of the raw material and improving the overall extraction rate.

[0023] Reference Figures 3-5 The interior of the guide ring 3 is divided into multiple groove segments 31, first convex segments 32 and second convex segments 33. Multiple groove segments 31, first convex segments 32 and second convex segments 33 are arranged at equal angles. The diameter of the first convex segment 32 is smaller than that of the second convex segment 33. The groove segments 31, first convex segments 32 and second convex segments 33 are arranged alternately and smoothly transitioned. The number of groove segments 31, first convex segments 32 and second convex segments 33 is even.

[0024] Specifically, the interior of the guide ring 3 is divided into multiple groove segments 31, primary convex segments 32 and secondary convex segments 33, which are distributed in a circular pattern at equal angles to ensure that the slider 4 can obtain uniform force feedback when moving along the inner side of the guide ring 3, and avoid movement jamming or deviation caused by uneven force.

[0025] The diameter of the first convex section 32 is smaller than that of the second convex section 33, thereby enabling the slider 4 to move horizontally back and forth over different distances. The groove section 31, the first convex section 32, and the second convex section 33 are arranged in an alternating pattern, and the transition between each section is smooth. This effectively reduces the frictional resistance of the slider 4 when switching between sections, reduces component wear, ensures the continuity and stability of the slider 4's movement, and avoids interference with the stirring system caused by movement impact due to structural abrupt changes.

[0026] In addition, the number of grooved sections 31, first convex sections 32, and second convex sections 33 are all set to an even number, so that when the two sliders 4 move within the guide ring 3, they are always in a symmetrical force state. This ensures that the differentiated horizontal reciprocating motion of the two sliders 4 is synchronized and coordinated, avoiding the situation where the movement of one side of the slider 4 is lagging or deviated. When the stirring shaft 2 rotates, the slider 4 slides cyclically along the grooved sections 31, first convex sections 32, and second convex sections 33 inside the guide ring 3. Under the action of the difference in diameter between the first convex section 32 and the second convex section 33, the slider 4 will produce horizontal reciprocating displacement of different amplitudes, forming differentiated radial stirring intensity, ensuring full coverage of radial stirring, eliminating blind spots in radial stirring, and avoiding over-stirring.

[0027] Reference Figures 3-6 The stirring shaft 2 includes a rotating shaft 21 rotatably connected inside the extraction tank 1, multiple mixing blades 22 and guide blocks 23 equidistantly arranged and fixedly connected to the outside of the rotating shaft 21, an upper guide rod 24 fixedly connected to the top of the rotating shaft 21, a lower guide rod 25 fixedly connected to the bottom of the rotating shaft 21, and a spring 26 connected between the slide bar 4 and the lower guide rod 25. The upper guide rod 24 and the lower guide rod 25 are parallel, and the upper guide rod 24 and the mixing blades 22 are staggered.

[0028] Specifically, the rotating shaft 21 is directly rotatably connected to the inside of the extraction tank 1. The equidistant distribution of the mixing blades 22 ensures that materials at different radial positions around the rotating shaft 21 receive uniform stirring and agitation. The guide block 23 is adapted to the dividing ring 8. The upper guide rod 24 and the lower guide rod 25 are set parallel to each other, together forming a double guide track for the horizontal movement of the slide bar 4. This makes the force on the slide bar 4 more balanced and the movement more stable. At the same time, it provides bidirectional support and limit for the slide bar 4, preventing it from moving up and down during horizontal movement. The upper guide rod 24 and the mixing blades 22 are arranged in an alternating manner. This layout can effectively avoid interference between the two during movement. The guiding function of the upper guide rod 24 on the slider 4 and the stirring function of the mixing blade 22 do not affect each other. At the same time, the staggered distribution can make the stirring flow field more complex, further improving the uniformity of material mixing. The spring 26 connects the slider 4 and the lower guide rod 25, providing elastic buffer and reset power for the horizontal reciprocating motion of the slider 4. When the slider 4 moves in the horizontal direction, the spring 26 can adapt to the displacement of the slider 4, reduce the motion impact of the slider 4 when switching between different structural sections, reduce component wear, extend the service life of the equipment, and provide reset thrust when the slider 4 reaches the end of the stroke, ensuring the continuity and smoothness of the reciprocating motion of the slider 4.

[0029] Among them, the guide block 23 is integrally machined, the rotating shaft 21 needs to transmit the torque of the drive motor 101 and bear the reciprocating load, the upper guide rod 24 and the lower guide rod 25 serve as the sliding track of the slider 4, and the surface is finely ground to reduce the coefficient of friction and meet the sliding requirements of the slider 4. The slider 4 uses stainless steel substrate to ensure the structural strength of the component and adapt to the mechanical requirements of reciprocating motion. At the same time, the external coating has excellent inertness, which can avoid the adsorption or denaturation of peptide chains caused by direct contact between metal materials and biological raw materials, and reduce residues.

[0030] Reference Figures 3-8 The top of the slide bar 4 is rotatably connected to a rotating wheel 41, which fits in close contact with the inside of the guide ring 3. The top of the slide bar 4 is slidably connected to the outside of the upper guide rod 24, and the bottom of the slide bar 4 is slidably connected to the outside of the lower guide rod 25. A single dividing ring 8 is slidably connected between two guide blocks 23, and the guide block 23 has a vertical slot 231.

[0031] The outer blade 5 is located between the two connecting rods 7. The outer blade 5 does not contact the collar 6. When the rotating wheel 41 is located in the middle of the groove section 31, the dividing ring 8 is located at the bottom of the vertical groove 231. This ensures the coordinated and synchronous movement of the slider 4 and the dividing ring 8, so that their reciprocating motion forms a precise linkage feedback, avoiding power transmission loss or component interference caused by motion misalignment.

[0032] The dividing ring 8 includes two sliding shafts 81 that are slidably connected inside the corresponding vertical slots 231, and two dividing blades 82 that are connected between the two sliding shafts 81. One end of the connecting rod 7 is hinged to the sliding shaft 81.

[0033] Specifically, the guide block 23 has a vertical slot 231, and two sliding shafts 81 are slidably connected inside the vertical slots 231 of the corresponding guide blocks 23. Two dividing blades 82 are connected between the two sliding shafts 81, and one end of the connecting rod 7 is no longer directly hinged to the main body of the dividing ring 8, but is hinged to the sliding shaft 81. When the slide bar 4 moves back and forth, the connecting rod 7 pushes the sliding shaft 81, causing the sliding shaft 81 to slide vertically back and forth along the vertical slot 231, thereby driving the dividing ring 8 as a whole to make a stable vertical back and forth motion along the stirring shaft 2, realizing the axial division and disturbance of the material inside the extraction tank 1. The sliding cooperation between the sliding shaft 81 and the vertical slot 231 provides precise guidance and limit for the axial movement of the dividing ring 8, avoiding the dividing ring 8 from deviating to the left or right during the movement. The dividing blades 82, connected between two sliding shafts 81, move or twist to ensure that they always move along the preset axial trajectory, increasing the disturbance range and stirring intensity of the axial material. This can more efficiently break the axial concentration stratification of the material. Multiple equally spaced dividing rings 8 can divide the material in the extraction tank 1 into multiple stirring zones along the axial direction. The vertical reciprocating motion of each dividing ring 8 drives the dividing blades 82 to disturb the material in the corresponding zone, effectively eliminating the axial stirring blind zone in the upper and lower regions of the extraction tank 1 in existing equipment, and avoiding the sedimentation and accumulation of solid raw materials in the axial direction. The reciprocating motion of the dividing blades 82 can accelerate the rapid exchange of material and solvent in the upper and lower regions of the extraction tank 1, effectively solving the problem of local solvent concentration imbalance in existing equipment and improving the overall extraction rate.

[0034] Reference Figures 1-8 The top of the extraction tank 1 is equipped with a drive motor 101 and a diversion pipe 102. The drive motor 101 is fixedly connected to the extraction tank 1, and the output end of the diversion pipe 102 is fixedly connected to the top of the rotating shaft 21. The drive motor 101 serves as the power source for the entire device, providing stable power for the rotation of the rotating shaft 21. The diversion pipe 102 can achieve precise delivery and diversion of the extraction solvent, and in conjunction with the rotation of the rotating shaft 21, the solvent can be rapidly diffused to various areas inside the extraction tank 1.

[0035] The working principle of this invention is as follows: When the rotating shaft 21 rotates, it drives the slide bar 4 on it to move in a circular motion synchronously with the rotating shaft 21. When the rotating wheel 41 slides along different sections of the guide ring 3, due to the difference in the diameter of the sections, the slide bar 4 moves horizontally back and forth along the upper guide rod 24 and the lower guide rod 25 at different distances. The spring 26 connected between the slide bar 4 and the lower guide rod 25 is continuously compressed and simultaneously rebounds to push the slide bar 4 back to its original position. When the slide bar 4 moves horizontally back and forth, it drives the outer blade 5 on its outside to move radially back and forth synchronously. Because the moving distance of different slide bars 4 is different, the outer blade 5 forms a differentiated radial stirring intensity gradient, realizing full coverage of radial stirring and precise control of intensity. In addition, when the slide bar 4 moves horizontally, the collar 6 on it moves synchronously, and the connecting rod 7 uses the horizontal displacement of the slide bar 4 to push the slide bar 4. The sliding shaft 81 is guided and limited by the vertical slot 231. When the sliding shaft 81 is pushed and pulled by the connecting rod 7, the sliding shaft 81 slides steadily vertically back and forth along the vertical slot 231 of the guide block 23, thereby driving the entire dividing ring 8 to move vertically back and forth synchronously along the stirring shaft 2. When the sliding shaft 81 moves vertically back and forth, it will drive the external dividing blades 82 to precisely axially disturb the material in each area, promote the rapid exchange of raw materials and solvents in the upper and lower areas of the extraction tank 1, destroy the mass transfer resistance barrier, and reduce the mass transfer resistance. The differentiated radial stirring of the outer blades 5 and the synchronous axial stirring of the dividing ring 8 work together. At the same time, the mixing blades 22 on the outside of the stirring shaft 2 assist in stirring the material in the core area, further enhancing the uniformity of material mixing and improving the extraction efficiency and extraction rate of biopeptides.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A biopeptide extraction device for biochemical detection, comprising an extraction tank (1), characterized in that: It also includes a stirring shaft (2) rotatably connected inside the extraction tank (1), a guide ring (3) fixedly connected inside the extraction tank (1), two slide bars (4) that are horizontally slidably connected to the outside of the stirring shaft (2), multiple outer blades (5) and collars (6) that are fixedly connected to the outside of the slide bars (4), a connecting rod (7) that is rotatably connected to the collar (6) at one end, and multiple dividing rings (8) that are equidistantly arranged and vertically slidably connected to the outside of the stirring shaft (2). The other end of the connecting rod (7) is hinged to the dividing ring (8). Two connecting rods (7) are connected between the collar (6) and the dividing ring (8). The number of dividing rings (8) is half the number of collars (6). When the stirring shaft (2) rotates, the slide bars (4) move horizontally back and forth a different distance, and the dividing rings (8) move synchronously vertically back and forth through the slide bars (4).

2. The biopeptide extraction device for biochemical detection according to claim 1, characterized in that: The interior of the guide ring (3) is divided into multiple groove segments (31), first convex segment (32) and second convex segment (33). The multiple groove segments (31), first convex segment (32) and second convex segment (33) are arranged at equal angles. The diameter of the first convex segment (32) is smaller than that of the second convex segment (33).

3. The biopeptide extraction device for biochemical detection according to claim 2, characterized in that: The stirring shaft (2) includes a rotating shaft (21) rotatably connected inside the extraction tank (1), multiple mixing blades (22) and guide blocks (23) equidistantly arranged and fixedly connected to the outside of the rotating shaft (21), an upper guide rod (24) fixedly connected to the top of the rotating shaft (21), a lower guide rod (25) fixedly connected to the bottom of the rotating shaft (21), and a spring (26) connected between the slide bar (4) and the lower guide rod (25). The upper guide rod (24) and the lower guide rod (25) are parallel, and the upper guide rod (24) and the mixing blades (22) are staggered.

4. The biopeptide extraction device for biochemical detection according to claim 3, characterized in that: The top of the slide bar (4) is rotatably connected to a rotating wheel (41), the rotating wheel (41) is in contact with the inside of the guide ring (3), the top of the slide bar (4) is slidably connected to the outside of the upper guide rod (24), and the bottom of the slide bar (4) is slidably connected to the outside of the lower guide rod (25).

5. The biopeptide extraction device for biochemical detection according to claim 3, characterized in that: A single segmented ring (8) is slidably connected between two guide blocks (23), the guide blocks (23) having vertical slots (231).

6. The biopeptide extraction device for biochemical detection according to claim 2, characterized in that: The groove segment (31), the first convex segment (32) and the second convex segment (33) are staggered and smoothly transitioned, and the number of the groove segment (31), the first convex segment (32) and the second convex segment (33) is even.

7. The biopeptide extraction device for biochemical detection according to claim 2, characterized in that: The outer blade (5) is located between the two connecting rods (7), and the outer blade (5) does not contact the collar (6).

8. The biopeptide extraction device for biochemical detection according to claim 4, characterized in that: When the rotating wheel (41) is located in the middle of the groove section (31), the dividing ring (8) is located at the bottom of the vertical groove (231).

9. The biopeptide extraction device for biochemical detection according to claim 5, characterized in that: The dividing ring (8) includes two sliding shafts (81) that are slidably connected inside the corresponding vertical slots (231), and two dividing blades (82) that are connected between the two sliding shafts (81). One end of the connecting rod (7) is hinged to the sliding shaft (81).

10. The biopeptide extraction device for biochemical detection according to claim 3, characterized in that: The top of the extraction tank (1) is provided with a drive motor (101) and a diverter pipe (102). The drive motor (101) is fixedly connected to the extraction tank (1), and the output end of the diverter pipe (102) is fixedly connected to the top end of the rotating shaft (21).

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