An antibody preparation animal serum collection device
By designing an automated serum collection device, which uses rotating components and servo motors to control the piston head to move at a constant speed, the problems of requiring two people to work together and unstable collection speed in existing technologies have been solved, and efficient and stable serum collection by a single person has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ADV (QINGDAO) BIOTECHNOLOGY CO LTD
- Filing Date
- 2026-04-27
- Publication Date
- 2026-05-29
AI Technical Summary
Existing serum collection devices require two people to work together, resulting in wasted manpower and low collection efficiency. Furthermore, the unstable collection speed can easily lead to stress reactions and vascular damage in animals, affecting the quality of collection.
An automated serum collection device was designed, comprising components such as a frame, a rotating motor, a cylinder, a rack, a gear shaft, and a servo motor. The rotating and massaging components enable single-person operation, while the servo motor controls the piston head to move at a uniform speed, preventing red blood cell rupture and improving collection efficiency and quality.
This method enables rapid and efficient serum collection by a single person, reducing labor costs, minimizing animal stress, and improving collection success rate and quality.
Smart Images
Figure CN122096791A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of serum collection devices, and in particular to an animal serum collection device for antibody preparation. Background Technology
[0002] A serum collection device is a tool used to collect serum. In the biomedical engineering industry, serum refers to the pale yellow, transparent liquid separated from blood plasma after blood has coagulated and fibrinogen and certain clotting factors have been removed, or plasma with fibrinogen removed. Serum does not coagulate. Human and animal serum are commonly used to perform various serological tests to help diagnose diseases. Antibody-containing serum can be used for disease prevention or treatment. In antibody preparation, a collection device is needed to collect animal serum.
[0003] There are many existing technologies for serum collection devices, such as: Chinese invention patent CN213787430U discloses an animal serum collection device for antibody preparation, including a screw cap. A silicone protective strip is fixedly connected to the bottom side of the screw cap, and a shock-absorbing protrusion is provided on the right side of the silicone protective strip. A protective pad is fixedly connected to the bottom end of the silicone protective strip. When collecting serum from an animal, the hair at the blood collection site is first shaved. The protective cap is opened by rotating around the axis, and the animal hair is shaved with a blade. The vein is then highlighted by tapping and disinfected. A blood-drawing needle is inserted into the animal's vein, and the blood flows into the collection bottle. After collection, the blood-drawing needle is removed to stop the bleeding. The collection bottle is then unscrewed from the inside of the screw cap, and the cap is closed to complete the collection, thus facilitating the use of the collection device.
[0004] However, some problems still exist in actual use: 1. When using existing serum collection devices, since animals cannot automatically cooperate with operators for serum collection, it is usually necessary for two operators to work together to carry out the collection operation. One person is responsible for calming the animal and fixing its position, while the other person performs the serum collection operation. This two-person operation mode not only wastes labor costs, but also leads to low serum collection efficiency and is difficult to adapt to the needs of batch sample collection. 2. The sampling speed of the collector is difficult to maintain. When the sampling is too fast, it will cause strong mechanical stimulation to the animal's blood vessels, pull on the inner wall of the blood vessels, and cause vasospasm, which will lead to obvious stress response in the animal. It may also cause blood vessel damage and hemolysis of the sample due to the animal struggling, which will indirectly affect the accuracy of subsequent cell separation, extraction and test results. Summary of the Invention
[0005] In order to overcome the above-mentioned defects in the prior art, the present invention provides an animal serum collection device for antibody preparation.
[0006] To achieve the above objectives, the present invention provides an animal serum collection device for antibody preparation, comprising a frame, wherein a height adjustment assembly is provided inside the frame, the height adjustment assembly includes a rotating motor located at the top of the frame, the output shaft of the rotating motor passing through the frame and having a lead screw at its end, a base plate on the surface of the lead screw, and the base plate moving vertically when the lead screw rotates, a collector is provided below the base plate, the collector including a needle tube and an extension needle, the needle tube and the extension needle being fitted together, a support ring on the top of the needle tube, a piston head inside the needle tube, a slide rod on the top of the piston head, a return spring between the piston head and the needle tube, under normal circumstances, the piston head is moved away from the extension needle by the force of the return spring, a rotating assembly is provided between the base plate and the collector, the rotating assembly being used to place the collector, a collection component inside the rotating assembly being used to automatically extract animal serum, a limiting component on the surface of the rotating assembly being used to limit and fix the collector, so that the collector remains stable during the collection process.
[0007] Furthermore, the rotating assembly includes a cylinder disposed on the top of the substrate, the piston rod at the end of the cylinder is provided with a toothed rod, the side wall of the toothed rod is provided with a gear shaft, the gear shaft passes through the substrate and has a turntable at its end, and the toothed rod moves to drive the gear shaft to mesh and rotate.
[0008] Furthermore, the turntable is provided with a first support base at its bottom. The first support bases are arranged symmetrically, and ribs are provided between the first support bases. A guide groove is provided at the end of the first support base. The width of the guide groove is the same as the diameter of the needle tube, and rotating blocks are provided on both sides of the guide groove.
[0009] Furthermore, a second support is provided on the adjacent side of the first support. The second support is symmetrical. A massage component is provided on the surface of the second support. The massage component includes an electric telescopic rod provided on the top of the second support. The piston rod at the end of the electric telescopic rod passes through the second support and is provided with a massage head at the end.
[0010] Furthermore, the acquisition component includes a servo motor located at the bottom of the stiffener plate. The output end of the servo motor is provided with a main gear, and there are auxiliary gear rods on both sides of the main gear. The auxiliary gear rods pass through the first support base and have an eccentric wheel at their ends.
[0011] Furthermore, the eccentric ends of the eccentric wheels always face opposite directions.
[0012] Furthermore, the limiting component includes a support rod disposed on one side of the first support base, the surface of the support rod is provided with a toothed bushing, the bottom of the toothed bushing is provided with a pressing block, and a torsion spring is provided between the support rod and the toothed bushing. Under normal circumstances, the toothed bushing is driven by the torsion spring to make the pressing block horizontal.
[0013] Furthermore, a rack is provided on one side of the toothed bushing, and an extension plate is provided at the bottom of the rack, so that the toothed bushing meshes and rotates when the rack is pushed to move in the vertical direction.
[0014] Furthermore, a wedge-shaped block is provided on one side of the extension plate, and a limiting block is provided at the bottom of the wedge-shaped block. The limiting block slides on the inner wall of the slide groove, and a compression spring is provided between the limiting block and the slide groove. When the rotating block rotates, it pushes the wedge-shaped block to move horizontally.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this animal serum collection device for antibody preparation, the piston rod at the end of the control cylinder drives the toothed rod to move horizontally. During the movement of the toothed rod, the gear shaft meshes and rotates, causing the turntable at the bottom of the gear shaft to move to 180°. This allows the collected serum collector and the one to be collected to be swapped, facilitating rapid collection of animal serum and improving the efficiency of animal serum collection.
[0016] 2. In this animal serum collection device for antibody preparation, the piston rod at the end of the control cylinder drives the rack to move horizontally, causing the rack to drive the gear shaft to mesh and rotate, so that the second support seat rotates above the animal serum collection point. The electric telescopic rod is controlled to drive the massage head to move downward in the vertical direction until the massage head is in contact with the animal's epidermis. The massage head massages the serum collection area, relaxes the animal's muscles, and makes the blood vessels more full, thereby improving the success rate of animal serum collection.
[0017] 3. In this animal serum collection device for antibody preparation, the output of the control servo motor drives the main gear to rotate. When the main gear rotates, it drives the secondary gear rod to mesh and rotate. When the secondary gear rod rotates, the eccentric wheel at its end rotates. Since the eccentric wheel is in contact with the top of the slide rod, it stops rotating when the eccentric end of the eccentric wheel is perpendicular to the piston rod. During this process, the slide rod is driven by the pressure of the eccentric wheel to move the piston head against the inner wall of the needle tube and downward in a vertical direction. When it is necessary to collect animal serum, the extension needle is inserted into the animal vein, and the eccentric wheel is controlled to drive the main gear to rotate. At this time, the secondary gear rod drives the eccentric wheel to rotate. During the rotation of the eccentric wheel, its eccentric end moves away from the slide rod. At this time, the piston head is moved at a constant speed by the force of the return spring. During the movement of the piston head, the animal serum is collected at a constant speed through the extension needle, avoiding the piston head from being too fast during the aspiration process, which would cause the red blood cells in the serum to rupture, thereby improving the quality of serum collection. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the height adjustment component structure of the present invention; Figure 3 This is a cross-sectional view of the data collector of the present invention; Figure 4 This is a schematic diagram of the rotating component structure of the present invention; Figure 5 This is a schematic diagram of the massage head structure of the present invention; Figure 6 This is one of the schematic diagrams of the acquisition component structure of the present invention; Figure 7 This is the second schematic diagram of the acquisition component structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram at point A; Figure 9 This is a schematic diagram of the limiting component structure of the present invention.
[0020] The meanings of the labels in the diagram are as follows: 100. Frame; 200. Height adjustment assembly; 201. Rotary motor; 202. Lead screw; 203. Base plate; 204. Syringe; 205. Extension needle; 206. Piston head; 207. Slide rod; 208. Return spring; 300. Rotating assembly; 301. Cylinder; 302. Gear rack; 303. Gear shaft; 304. Turntable; 305. First support base; 306. Second support base; 307. Electric telescopic rod; 308. Massage head; 309. Guide groove; 310. Rotating block; 400. Acquisition component; 401. Servo motor; 402. Main gear; 403. Secondary gear shaft; 404. Eccentric wheel; 500, Limiting component; 501, Support rod; 502, Toothed bushing; 503, Pressing block; 504, Torsion spring; 505, Rack; 506, Wedge block; 507, Limiting block; 508, Compression spring; 509, Extension plate. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] An animal serum collection device for antibody preparation, based on Figure 1-9 As shown, the device includes a frame 100, inside which is a height adjustment assembly 200. The height adjustment assembly 200 includes a rotating motor 201 located at the top of the frame 100. The output shaft of the rotating motor 201 passes through the frame 100 and has a lead screw 202 at its end. A base plate 203 is provided on the surface of the lead screw 202. When the lead screw 202 rotates, it drives the base plate 203 to move vertically. A collector is located below the base plate 203. The collector includes a needle tube 204 and an extension needle 205, which are fitted together. A support ring is provided at the top of the needle tube 204, and a piston head 206 is provided inside the needle tube 204. A sliding rod 207 is provided at the top, and a return spring 208 is provided between the piston head 206 and the needle tube 204. Under normal circumstances, the piston head 206 is moved away from the extension needle 205 by the force of the return spring 208. A rotating assembly 300 is provided between the base plate 203 and the collector. The rotating assembly 300 is used to place the collector to reduce the feeding time during the collection process. A collection assembly 400 is provided inside the rotating assembly 300. The collection assembly 400 is used to automatically extract animal serum. A limiting assembly 500 is provided on the surface of the rotating assembly 300. The limiting assembly 500 is used to limit and fix the collector to keep it stable during the collection process.
[0023] To improve the efficiency of animal serum collection and the placement efficiency of the collector, the rotating assembly 300 includes a cylinder 301 mounted on the top of the base plate 203. The piston rod at the end of the cylinder 301 has a toothed rod 302, and the side wall of the toothed rod 302 has a gear shaft 303. The gear shaft 303 passes through the base plate 203 and has a turntable 304 at its end. When the toothed rod 302 moves, it drives the gear shaft 303 to mesh and rotate. The bottom of the turntable 304 has a first support seat 305, which is symmetrically arranged. Ribs are provided between the first support seats 305. A guide groove 309 is opened at the end of each first support seat 305. The width of the guide groove 309 is the same as the diameter of the needle tube 204. Rotating blocks 310 are provided on both sides of the guide groove 309. When animal serum collection is required, the rotating block 310 can be adjusted according to the following conditions: The height of the collector is controlled according to the animal's body size. The output of the control motor 201 drives the lead screw 202 to rotate. The base plate 203 on the surface of the lead screw 202 moves vertically until the base plate 203 moves to a height that matches the animal's body size. The collector is then placed on the surface of the first support seats 305 on both sides of the bottom of the turntable 304, thus enabling a single person to collect animal serum. When one collector has finished collecting animal serum, the piston rod at the end of the control cylinder 301 drives the rack 302 to move horizontally. During the movement of the rack 302, the gear shaft 303 meshes and rotates, causing the turntable 304 at the bottom of the gear shaft 303 to move 180°. This allows the collected collector and the collector to be collected to switch positions, facilitating rapid collection of serum from adjacent animals and improving the efficiency of animal serum collection.
[0024] During animal serum collection, muscle tension can compress blood vessels, causing them to collapse. Relaxation makes the blood vessels more visible, reducing the failure rate of puncture. Therefore, a second support 306 is provided on the adjacent side of the first support 305. The second support 306 is symmetrical and has a massage component on its surface. The massage component includes an electric telescopic rod 307 at the top of the second support 306. The piston rod at the end of the electric telescopic rod 307 passes through the second support 306 and has a massage head 308 at its end. When the base plate 203 moves the collector to a suitable position, the piston rod at the end of the cylinder 301 drives the rack 302 to move horizontally, causing the rack 302 to drive the gear shaft 303 to mesh and rotate. This rotates the second support 306 above the animal serum collection site. The electric telescopic rod 307 then drives the massage head 308 to move downwards vertically until the massage head 308 is in contact with the animal's skin. The massage head 308 massages the serum collection area, relaxing the animal's muscles and making the blood vessels more full, thereby improving the success rate of animal serum collection.
[0025] When collecting animal serum, excessively high blood flow rates can generate strong negative pressure and shear force, directly causing red blood cell rupture, turning the serum red and rendering it unusable for antibody detection and preparation, thus affecting the collection results. Therefore, the collection assembly 400 includes a servo motor 401 located at the bottom of the reinforcing plate. The output end of the servo motor 401 is equipped with a main gear 402, and auxiliary gear rods 403 are located on both sides of the main gear 402. The auxiliary gear rods 403 pass through the first support base 305 and have eccentric wheels 404 at their ends. The eccentric ends of the eccentric wheels 404 are always in opposite directions. When animal serum needs to be collected, under normal circumstances, the output end of the servo motor 401 drives the main gear 402 to rotate. When the main gear 402 rotates, it drives the auxiliary gear rods 403 to mesh and rotate. When the auxiliary gear rods 403 rotate, the eccentric wheels 404 at their ends rotate. Due to the eccentricity... The wheel 404 is in contact with the top of the slide rod 207. When the eccentric end of the eccentric wheel 404 is perpendicular to the slide rod 207, it stops rotating. During this process, the slide rod 207 is driven by the pressure of the eccentric wheel 404 to move the piston head 206 against the inner wall of the needle tube 204 and downward in a vertical direction. When it is necessary to collect animal serum, the extension needle 205 is inserted into the animal vein, and the eccentric wheel 404 is controlled to drive the main gear 402 to rotate. At this time, the secondary gear rod 403 drives the eccentric wheel 404 to rotate. During the rotation of the eccentric wheel 404, its eccentric end moves away from the slide rod 207. At this time, the piston head 206 is moved at a constant speed by the force of the return spring 208. During the movement of the piston head 206, the animal serum is collected at a constant speed through the extension needle 205, avoiding the piston head 206 from being too fast during the aspiration process and avoiding the rupture of red blood cells during the collection of serum, thereby improving the quality of serum collection.
[0026] To improve the stability of the collector during placement, the limiting component 500 includes a support rod 501 on one side of the first support base 305. The support rod 501 has a toothed bushing 502 on its surface, and a pressing block 503 at its bottom. A torsion spring 504 is located between the support rod 501 and the toothed bushing 502. Under normal conditions, the pressing block 503 is horizontally driven by the torsion spring 504. During placement, the extension plate 509 pushes the rack 505 upwards in the vertical direction. As the rack 505 moves, it engages and rotates the toothed bushing 502, causing the pressing block 503 at the end of the toothed bushing 502 to rotate to the top of the needle tube 204. This limits and fixes the needle tube 204, preventing it from sliding when the slide bar 207 is pressed by the eccentric wheel 404, thus improving the stability of the collector.
[0027] During the placement of the collector, to facilitate automatic positioning and fixation, a rack 505 is provided on one side of the toothed bushing 502. An extension plate 509 is provided at the bottom of the rack 505. When the rack 505 moves vertically, the toothed bushing 502 engages and rotates. A wedge block 506 is provided on one side of the extension plate 509, and a limiting block 507 is provided at the bottom of the wedge block 506. The limiting block 507 slides on the inner wall of the groove. A compression spring 508 is provided between the limiting block 507 and the groove. When the rotating block 310 rotates, it pushes the wedge block 506 to move horizontally. When the needle tube 204 is placed into the guide groove 309, a support ring at the top of the needle tube 204 slides on the surface of the guide groove 309. During the sliding process, the needle tube 204 presses against the rotating block 310, causing the rotating block 310 to rotate clockwise. During this rotation, the rotating block 310 presses against the wedge block 506. The limiting block 507 at the bottom of the wedge block 506 slides in the groove and compresses the compression spring 508. During the sliding process, the wedge block 506 pushes the extension plate 509 to move in the vertical direction, thereby causing the rack 505 to drive the toothed bushing 502 to rotate. The pressing block 503 at the end of the toothed bushing 502 presses and fixes the top of the needle tube 204, so that the collector automatically maintains a stable state and reduces the labor intensity of the operator. When the serum collection is completed, the rotating block 310 is rotated away from the wedge block 506. The wedge block 506 is reset by the restoring force of the compression spring 508, so that the wedge block 506 is away from the extension plate 509. At this time, the toothed bushing 502 is subjected to the force of the torsion spring 504. The toothed bushing 502 drives the pressing block 503 to rotate away from the top of the needle tube 204, so as to facilitate the quick removal of the collector.
[0028] In practical use, by controlling the piston rod at the end of the cylinder 301, the rack 302 is driven to move horizontally. During the movement of the rack 302, the gear shaft 303 is driven to mesh and rotate, so that the turntable 304 at the bottom of the gear shaft 303 moves to 180°, so that the position of the collected sampler and the sampler to be collected are swapped, so as to quickly collect serum from animals and improve the efficiency of collecting animal serum. By controlling the piston rod at the end of the cylinder 301 to drive the rack 302 to move horizontally, the rack 302 drives the gear shaft 303 to mesh and rotate, causing the second support seat 306 to rotate above the animal serum collection point. The electric telescopic rod 307 is controlled to drive the massage head 308 to move downward in the vertical direction until the massage head 308 is in contact with the animal's epidermis. The massage head 308 massages the serum collection area, relaxes the animal's muscles, and makes the blood vessels more full, thereby improving the success rate of animal serum collection. The output of the servo motor 401 drives the main gear 402 to rotate. When the main gear 402 rotates, it drives the secondary gear rod 403 to mesh and rotate. When the secondary gear rod 403 rotates, the eccentric wheel 404 at its end rotates. Since the eccentric wheel 404 is in contact with the top of the slide rod 207, it stops rotating when the eccentric end of the eccentric wheel 404 is perpendicular to the slide rod 207. During this process, the slide rod 207, under the pressure of the eccentric wheel 404, drives the piston head 206 to move vertically downwards against the inner wall of the needle tube 204. This is necessary when animal serum needs to be collected. The extension needle 205 is inserted into the animal's vein, and the eccentric wheel 404 drives the main gear 402 to rotate. At this time, the secondary gear rod 403 drives the eccentric wheel 404 to rotate. During the rotation of the eccentric wheel 404, its eccentric end moves away from the slide rod 207. At this time, the piston head 206 moves at a constant speed under the force of the return spring 208. During the movement of the piston head 206, the animal serum is collected at a constant speed through the extension needle 205, which avoids the piston head 206 from rupturing red blood cells in the serum due to too fast aspiration, thereby improving the quality of serum collection. When the needle tube 204 is placed into the guide groove 309, the support ring at the top of the needle tube 204 slides on the surface of the guide groove 309. During the sliding process, the needle tube 204 presses against the rotating block 310, causing the rotating block 310 to rotate clockwise. During the rotation of the rotating block 310, it presses against the wedge block 506. The limiting block 507 at the bottom of the wedge block 506 slides in the groove and presses against the compression spring 508. During the sliding process, the wedge block 506 pushes the extension plate 509 to move in the vertical direction, thereby causing the rack 505 to drive the toothed bushing 502 to rotate. The pressing block 503 at the end of the toothed bushing 502 presses and fixes the top of the needle tube 204, so that the collector automatically maintains a stable state and reduces the labor intensity of the operator. When the serum collection is completed, the rotating block 310 is rotated away from the wedge block 506. The wedge block 506 is reset by the restoring force of the compression spring 508, so that the wedge block 506 is away from the extension plate 509. At this time, the toothed bushing 502 is subjected to the force of the torsion spring 504. The toothed bushing 502 drives the pressing block 503 to rotate away from the top of the needle tube 204, so that the collector can be quickly removed.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. An animal serum collection device for antibody preparation, characterized in that: The device includes a frame (100), inside which is a height adjustment assembly (200). The height adjustment assembly (200) includes a rotating motor (201) located at the top of the frame (100). The output shaft of the rotating motor (201) passes through the frame (100) and has a lead screw (202) at its end. A base plate (203) is provided on the surface of the lead screw (202). When the lead screw (202) rotates, it drives the base plate (203) to move in a vertical direction. A collector is provided below the base plate (203). The collector includes a needle tube (204) and an extension needle (205). The needle tube (204) and the extension needle (205) are fitted together. A support ring is provided at the top of the needle tube (204). A piston head (206) is provided inside the needle tube (204). The piston head (206) is provided with a sliding rod (207) at the top. A return spring (208) is provided between the piston head (206) and the needle tube (204). Under normal circumstances, the piston head (206) is moved away from the extension needle (205) by the force of the return spring (208). A rotating assembly (300) is provided between the base plate (203) and the collector. The rotating assembly (300) is used to place the collector. A collection assembly (400) is provided inside the rotating assembly (300). The collection assembly (400) is used to automatically extract animal serum. A limiting assembly (500) is provided on the surface of the rotating assembly (300). The limiting assembly (500) is used to limit and fix the collector so that the collector remains stable during the collection process.
2. The animal serum collection device for antibody preparation according to claim 1, characterized in that, The rotating assembly (300) includes a cylinder (301) disposed on the top of the base plate (203). The piston rod at the end of the cylinder (301) is provided with a rack (302). The side wall of the rack (302) is provided with a gear shaft (303). The gear shaft (303) passes through the base plate (203) and has a turntable (304) at its end. When the rack (302) moves, it drives the gear shaft (303) to mesh and rotate.
3. The animal serum collection device for antibody preparation according to claim 2, characterized in that, The turntable (304) has a first support base (305) at its bottom. The first support base (305) is arranged symmetrically. Ribs are provided between the first support bases (305). A guide groove (309) is provided at the end of the first support base (305). The width of the guide groove (309) is the same as the diameter of the needle tube (204). Rotating blocks (310) are provided on both sides of the guide groove (309).
4. The animal serum collection device for antibody preparation according to claim 3, characterized in that, The first support base (305) is provided with a second support base (306) on the adjacent side. The second support base (306) is symmetrical. The surface of the second support base (306) is provided with a massage component. The massage component includes an electric telescopic rod (307) provided on the top of the second support base (306). The piston rod at the end of the electric telescopic rod (307) passes through the second support base (306) and the end is provided with a massage head (308).
5. The animal serum collection device for antibody preparation according to claim 1, characterized in that, The acquisition component (400) includes a servo motor (401) located at the bottom of the stiffener plate. The output end of the servo motor (401) is provided with a main gear (402). The main gear (402) is provided with auxiliary gear rods (403) on both sides. The auxiliary gear rods (403) pass through the first support base (305) and are provided with an eccentric wheel (404) at their ends.
6. The animal serum collection device for antibody preparation according to claim 5, characterized in that, The eccentric ends of the eccentric wheels (404) are always in opposite directions.
7. The animal serum collection device for antibody preparation according to claim 1, characterized in that, The limiting component (500) includes a support rod (501) provided on one side of the first support base (305). The surface of the support rod (501) is provided with a toothed bushing (502). The bottom of the toothed bushing (502) is provided with a pressing block (503). A torsion spring (504) is provided between the support rod (501) and the toothed bushing (502). Under normal circumstances, the toothed bushing (502) is driven by the force of the torsion spring (504) to make the pressing block (503) horizontal.
8. The animal serum collection device for antibody preparation according to claim 7, characterized in that, The toothed bushing (502) has a rack (505) on one side, and an extension plate (509) is provided at the bottom of the rack (505). When the rack (505) is pushed to move in the vertical direction, the toothed bushing (502) engages and rotates.
9. The animal serum collection device for antibody preparation according to claim 8, characterized in that, The extension plate (509) has a wedge block (506) on one side, and a limiting block (507) is provided at the bottom of the wedge block (506). The limiting block (507) slides on the inner wall of the groove. A compression spring (508) is provided between the limiting block (507) and the groove. When the rotating block (310) rotates, it pushes the wedge block (506) to move horizontally.