Purifying and extracting device for aquatic product paramagnetic particle method virus

Abstract

The purification and extraction device comprises a workbench, a clamping mechanism, a processing mechanism, an air supply mechanism and a driving mechanism, a placement plate is arranged on one side of the top of the workbench, a lead screw is arranged on the other side of the top of the workbench, a lifting plate penetrates through the lead screw, a cylinder penetrates through one end of the lifting plate and rotates, and through holes are formed in the periphery of the cylinder; a processing box is welded to the top of the lifting plate, the clamping mechanism is used for clamping the container, the processing mechanism is used for processing air entering the processing box, the air supply mechanism is used for supplying air to the cylinder, and the driving mechanism is used for driving the containing plate and the cylinder to rotate and driving the lifting plate to ascend and descend. The magnetic beads and the viruses can be stirred to ensure that the magnetic beads are in full contact with the viruses, so that the combination efficiency and the purification effect are improved; the containers rotating in different directions and the spiral airflow have a better stirring effect on the magnetic microbeads and the viruses, stirring force generated by the airflow and rotating force is softer, and damage to the magnetic microbeads or samples cannot be caused.

Description

Technical Field

[0001] The invention relates to the technical field of virus purification and extraction, in particular to a device for purifying and extracting aquatic viruses using a magnetic bead method. Background Art

[0002] The aquatic magnetic bead method is a technology used in the field of aquaculture, mainly for detecting harmful substances or pathogens in water bodies. This method usually involves the use of magnetic microbeads, to which specific probes or antibodies can be attached, which can specifically bind to the target substance. When the virus in aquatic products is purified and extracted using the aquatic magnetic bead method, it is necessary to go through the steps of virus capture, binding reaction, magnetic separation, washing and virus extraction, among which the binding reaction is to make the antibodies on the magnetic microbeads bind to the viruses in the sample to facilitate the subsequent magnetic separation for purification and extraction.

[0003] Most existing virus purification and extraction devices lack stirring during the binding reaction, resulting in insufficient contact between the magnetic microbeads and the viruses in the sample, leading to poor binding efficiency and purification effects; some use mechanical stirring, but mechanical stirring is relatively violent and may cause damage to the magnetic microbeads or samples. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a device for purifying and extracting viruses from aquatic products using a magnetic bead method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for purifying and extracting viruses from aquatic products by magnetic bead method, comprising: a workbench, a placing plate is horizontally arranged on one side of the top of the workbench, a screw rod is vertically arranged on the other side of the top of the workbench, a lifting plate is horizontally penetrated on the screw rod, a cylinder is vertically penetrated at one end of the lifting plate and rotatably connected, a through hole is opened on the outer circumference of the cylinder, and a processing box is welded on the top of the lifting plate;

[0007] A clamping mechanism, wherein the clamping mechanism is used to clamp the container;

[0008] A processing mechanism, the processing mechanism is used to process the air entering the processing box;

[0009] An air supply mechanism, the air supply mechanism being used to supply air to the cylinder;

[0010] The driving mechanism is used to drive the placement plate and the cylinder to rotate and drive the lifting plate to rise and fall.

[0011] As a further technical solution of the present invention, support legs are vertically welded at the four corners of the bottom of the workbench, a controller is fixedly installed at one corner of the top of the workbench, a top cover is hinged on the top of the processing box, and a plurality of through holes are provided and evenly distributed on the outer circumference of the cylinder.

[0012] As a further technical solution of the present invention, the clamping mechanism includes a clamping cylinder, which is horizontally fixedly installed on one side of the top of the placement plate. Both output ends of the clamping cylinder are fixedly connected to clamping parts, and the two clamping parts are symmetrically arranged.

[0013] As a further technical solution of the present invention, the lifting plate and the screw rod are connected by threads, a limit rod is horizontally welded on one side of the lifting plate, and a limit plate is vertically welded on the top of the workbench. A limit groove is vertically opened in the middle of one side of the limit plate, and the other end of the limit rod is slidably connected to the inside of the limit groove. A turntable is welded on the top of the screw rod, and a handle is vertically welded on the top edge of the turntable.

[0014] As a further technical solution of the present invention, the processing mechanism includes a filter, an activated carbon adsorption net and an ultraviolet disinfection lamp. The filter and the activated carbon adsorption net are vertically plugged into the interior of the processing box. There are multiple ultraviolet disinfection lamps, and the multiple ultraviolet disinfection lamps are evenly distributed at one end of the inner walls on both sides of the processing box.

[0015] The air entering the processing box is first filtered through a filter to remove large particles of impurities, then adsorbed by an activated carbon adsorption net to remove small particles of impurities, and finally disinfected by multiple ultraviolet disinfection lamps, thereby preventing impurities and pathogens in the air from entering the sample and affecting the final purification and extraction results.

[0016] As a further technical solution of the present invention, the air supply mechanism includes an exhaust fan, which is fixedly installed on the top of the lifting plate, an exhaust pipe is connected between the air inlet of the exhaust fan and the processing box, an air outlet pipe is connected between the air outlet of the exhaust fan and the cylinder, the air outlet pipe and the cylinder are rotatably connected, and an air inlet pipe is horizontally connected to the side of the processing box close to the filter.

[0017] The exhaust fan is started to draw air into the processing box through the air inlet pipe for processing. The treated clean air is passed into the cylinder through the exhaust pipe and the air outlet pipe, and then passed into the container through multiple through holes on the surface of the cylinder to stir the magnetic microbeads and the viruses in the sample to ensure that the magnetic microbeads are in full contact with the viruses in the sample, thereby improving the binding efficiency and purification effect.

[0018] As a further technical solution of the present invention, the driving mechanism includes a forward and reverse motor, which is vertically fixedly installed in the middle of the top of the workbench, and the output end of the forward and reverse motor is vertically fixedly installed with a driving shaft, a driving gear is welded on the top of the driving shaft, a driven gear is welded on the outer circumference of the cylinder, and the driven gear can mesh with the driving gear, a second driven shaft is vertically welded at the center of the bottom of the placement plate, the bottom end of the second driven shaft is rotatably connected to the workbench, the same second belt is connected between the driving shaft and the second driven shaft, and one side of the top of the workbench is vertically rotatably connected to the first driven shaft Axle, the same first belt is connected between the driving shaft and the first driven shaft, a large disc is welded on the top of the first driven shaft, a circular groove is opened on the top of the large disc, a small disc is rotatably connected at the center of the circular groove, a plurality of ratchets are evenly welded inside the circular groove, a toggle rod is rotatably connected to the outer circumference of the top of the small disc, the front end of the toggle rod abuts between two ratchets, a spring piece and a limit pin are respectively welded on the inner and outer sides of the toggle rod at the top of the small disc, the spring piece and the limit pin abut against the inner and outer sides of the toggle rod respectively, and the bottom end of the screw rod is welded to the center of the small disc.

[0019] First, start the forward and reverse motor to drive the active shaft to rotate clockwise, and the active shaft drives the first driven shaft to rotate clockwise through the first belt, and the first driven shaft drives the large disc to rotate clockwise, then the ratchet on the inner wall of the circular groove drives the end of the toggle rod to rotate clockwise, and when the toggle rod rotates clockwise, its outer side generates abutment force on the limit pin, but the limit pin does not move, then the large disc drives the small disc to rotate clockwise through the toggle rod, and the small disc drives the lead screw to rotate clockwise, thereby driving the lifting plate to move downward on the lead screw, and the lifting plate drives the cylinder to descend until it extends into the container, and at the same time the driven gear descends to a position meshing with the active gear; then start the forward and reverse motor to drive the active shaft to rotate counterclockwise, and the first driven shaft drives the large disc to rotate counterclockwise, then the ratchet belt on the inner wall of the circular groove The end of the toggle rod is driven to rotate counterclockwise. When the toggle rod rotates counterclockwise, its inner side generates abutting force on the spring sheet to deform it, and the top end of the toggle rod is disengaged from the adjacent ratchet teeth. The large disc cannot drive the small disc to rotate counterclockwise through the toggle rod, so that the position of the lifting plate does not change at this time, and the active shaft drives the second driven shaft to rotate counterclockwise through the second belt, and the second driven shaft drives the container fixed on the placement plate to rotate counterclockwise, and the active shaft drives the cylinder to rotate clockwise through the active gear and the driven gear, so that the air ejected from the cylinder forms a spiral airflow, and the containers and spiral airflows rotating in different directions have a better stirring effect on the magnetic microbeads and the viruses in the sample, and the stirring force generated by the airflow and the rotational force is softer, and will not cause damage to the magnetic microbeads or the sample.

[0020] The beneficial effects of the present invention are as follows: the magnetic microbeads and the viruses in the sample can be stirred to ensure that the magnetic microbeads are in full contact with the viruses in the sample, thereby improving the binding efficiency and the purification effect; the container rotating in different directions and the spiral airflow have a better stirring effect on the magnetic microbeads and the viruses in the sample, and the stirring force generated by the airflow and the rotational force is gentler and will not cause damage to the magnetic microbeads or the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a device for purifying and extracting viruses from aquatic products using a magnetic bead method proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the top view of a device for purifying and extracting viruses from aquatic products using a magnetic bead method proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of a device for purifying and extracting viruses from aquatic products using a magnetic bead method proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the top structure of a lifting plate of a device for purifying and extracting viruses from aquatic products using a magnetic bead method proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of a large disc of a device for purifying and extracting viruses from aquatic products using a magnetic bead method proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the working state of a device for purifying and extracting viruses from aquatic products using a magnetic bead method proposed by the present invention.

[0027] In the figure: 1. lifting plate; 2. screw rod; 3. small disc; 4. large disc; 5. first driven shaft; 6. controller; 7. forward and reverse motor; 8. placement plate; 9. support leg; 10. workbench; 11. clamping piece; 12. clamping cylinder; 13. exhaust fan; 14. processing box; 15. driven gear; 16. through hole; 17. cylinder; 18. driving gear; 19. limit plate; 20. turntable; 21. limit rod; 22. air inlet pipe; 23. top cover; 24. limit groove; 25. driving shaft; 26. first belt; 27. second belt; 28. second driven shaft; 29. ​​air outlet pipe; 30. exhaust pipe; 31. ultraviolet disinfection lamp; 32. activated carbon adsorption net; 33. filter net; 34. spring; 35. circular groove; 36. ratchet; 37. limit pin; 38. toggle rod. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Please see attached Figure 1 -Attached Figure 6 A device for purifying and extracting viruses from aquatic products by magnetic bead method, comprising: a workbench 10, a placing plate 8 is horizontally arranged on one side of the top of the workbench 10, a screw rod 2 is vertically arranged on the other side of the top of the workbench 10, a lifting plate 1 is horizontally penetrated on the screw rod 2, a cylinder 17 is vertically penetrated and rotatably connected at one end of the lifting plate 1, a through hole 16 is opened on the outer circumference of the cylinder 17, and a processing box 14 is welded on the top of the lifting plate 1;

[0030] A clamping mechanism, the clamping mechanism is used for clamping the container;

[0031] A processing mechanism, the processing mechanism is used to process the air entering the processing box 14;

[0032] An air supply mechanism, the air supply mechanism is used to supply air to the cylinder 17;

[0033] The driving mechanism is used to drive the placement plate 8 and the cylinder 17 to rotate and drive the lifting plate 1 to rise and fall.

[0034] Only one driving device, the forward and reverse motor 7, can cooperate with different mechanisms to drive the placement plate 8 and the cylinder 17 to rotate and the lifting plate 1 to rise and fall, so the equipment cost is lower and the linkage of the whole device is stronger.

[0035] Please see attached Figure 1 In a preferred embodiment, support legs 9 are vertically welded at the four corners of the bottom of the workbench 10, a controller 6 is fixedly installed at one corner of the top of the workbench 10, a top cover 23 is hinged on the top of the processing box 14, and a plurality of through holes 16 are provided and evenly distributed around the outer circumference of the cylinder 17. The support legs 9 support the workbench 10, the controller 6 controls the opening and closing of all electrical equipment, and the top cover 23 can be opened to replace or repair the filter 33, the activated carbon adsorption net 32 ​​and the ultraviolet disinfection lamp 31 inside the processing box 14.

[0036] Please see attached Figure 1 In a preferred embodiment, the clamping mechanism includes a clamping cylinder 12, which is horizontally fixedly installed on one side of the top of the placement plate 8. Both output ends of the clamping cylinder 12 are fixedly connected to clamping members 11, and the two clamping members 11 are symmetrically arranged.

[0037] The container containing the sample is placed on the top of the placement plate 8, and the clamping cylinder 12 is started to drive the two clamping members 11 to move toward each other until the container is clamped.

[0038] Please see attached Figure 1 and 2 In a preferred embodiment, the lifting plate 1 and the screw rod 2 are connected by threads, a limiting rod 21 is horizontally welded on one side of the lifting plate 1, a limiting plate 19 is vertically welded on the top of the workbench 10, and a limiting groove 24 is vertically opened in the middle of one side of the limiting plate 19.

[0039] Please see attached Figure 1 and 2 In a preferred embodiment, the other end of the limit rod 21 is slidably connected to the inside of the limit slot 24, and a turntable 20 is welded to the top of the screw rod 2, and a hand handle is vertically welded to the top edge of the turntable 20. The limit rod 21 is slidably connected to the inside of the limit slot 24 to limit the movement of the lifting plate 1, so that it can only be lifted and lowered, but cannot rotate with the screw rod 2; the turntable 20 can be rotated by the hand handle, and the turntable 20 rotates the screw rod 21.

[0040] Please see attached Figure 4 In a preferred embodiment, the processing mechanism includes a filter 33, an activated carbon adsorption net 32 ​​and an ultraviolet disinfection lamp 31. The filter 33 and the activated carbon adsorption net 32 ​​are vertically inserted into the processing box 14. There are multiple ultraviolet disinfection lamps 31, and the multiple ultraviolet disinfection lamps 31 are evenly distributed at one end of the inner wall on both sides of the processing box 14.

[0041] Please see attached Figure 4 In a preferred embodiment, the air supply mechanism includes an exhaust fan 13, which is fixedly installed on the top of the lifting plate 1, and an exhaust pipe 30 is connected between the air inlet of the exhaust fan 13 and the processing box 14, and an air outlet pipe 29 is connected between the air outlet of the exhaust fan 13 and the cylinder 17. The air outlet pipe 29 and the cylinder 17 are rotatably connected, and the processing box 14 is horizontally connected to the air inlet pipe 22 on the side close to the filter 33.

[0042] Please see attached Figure 1-3 And 6, in a preferred embodiment, the driving mechanism includes a forward and reverse motor 7, which is vertically fixedly installed in the middle of the top of the workbench 10, and a driving shaft 25 is vertically fixedly installed at the output end of the forward and reverse motor 7. A driving gear 18 is welded to the top of the driving shaft 25, and a driven gear 15 is welded to the outer periphery of the cylinder 17. The driven gear 15 can mesh with the driving gear 18. A second driven shaft 28 is vertically welded at the center of the bottom of the placement plate 8, and the bottom end of the second driven shaft 28 is rotatably connected to the workbench 10.

[0043] Please see attached Figure 1-3 and 6. In a preferred embodiment, the same second belt 27 is connected between the driving shaft 25 and the second driven shaft 28, the first driven shaft 5 is vertically rotatably connected to one side of the top of the workbench 10, the same first belt 26 is connected between the driving shaft 25 and the first driven shaft 5, a large disc 4 is welded to the top of the first driven shaft 5, a circular groove 35 is opened on the top of the large disc 4, and a small disc 3 is rotatably connected to the center of the circular groove 35.

[0044] Please see attached Figure 1-3And 6, in a preferred embodiment, a plurality of ratchets 36 are evenly welded inside the circular groove 35, a toggle rod 38 is rotatably connected to the outer periphery of the top of the small disc 3, the front end of the toggle rod 38 abuts between the two ratchets 36, and a spring piece 34 and a limit pin 37 are respectively welded on the inner and outer sides of the toggle rod 38 at the top of the small disc 3, the spring piece 34 and the limit pin 37 abut against the inner and outer sides of the toggle rod 38 respectively, and the bottom end of the screw rod 2 is welded to the center of the small disc 3.

[0045] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: a container containing a sample is placed on the top of the placement plate 8, and the clamping cylinder 12 is started to drive the two clamping members 11 to move toward each other until the container is clamped;

[0046] First, start the forward and reverse motor 7 to drive the driving shaft 25 to rotate clockwise, and the driving shaft 25 drives the first driven shaft 5 to rotate clockwise through the first belt 26, and the first driven shaft 5 drives the large disc 4 to rotate clockwise, then the ratchet 36 on the inner wall of the circular groove 35 drives the end of the toggle rod 38 to rotate clockwise, and when the toggle rod 38 rotates clockwise, its outer side generates abutment force on the limit pin 37, but the limit pin 37 does not move, then the large disc 4 drives the small disc 3 to rotate clockwise together through the toggle rod 38, and the small disc 3 drives the screw rod 2 to rotate clockwise, thereby driving the lifting plate 1 to move downward on the screw rod 2, and the lifting plate 1 drives the cylinder 17 to descend until it extends into the container, and at the same time, the driven gear 15 descends to a position meshing with the driving gear 18;

[0047] Start the exhaust fan 13 to use the air inlet pipe 22 to draw air into the processing box 14. The air entering the processing box 14 is first filtered by the filter 33 to remove large particles of impurities, and then the activated carbon adsorption net 32 ​​adsorbs small particles of impurities, and finally disinfected by multiple ultraviolet disinfection lamps 31, so as to prevent impurities and bacteria contained in the air from entering the sample and affecting the final purification and extraction results. The treated clean air is passed into the cylinder 17 through the exhaust pipe 30 and the air outlet pipe 29, and then passed into the container through the multiple through holes 16 on the surface of the cylinder 17 to stir the magnetic microbeads and the viruses in the sample, so as to ensure that the magnetic microbeads are fully in contact with the viruses in the sample, thereby improving the binding efficiency and purification effect;

[0048] Then, the forward and reverse motor 7 is started to drive the driving shaft 25 to rotate counterclockwise, and the first driven shaft 5 drives the large disc 4 to rotate counterclockwise, then the ratchet teeth 36 on the inner wall of the circular groove 35 drives the end of the toggle rod 38 to rotate counterclockwise, and when the toggle rod 38 rotates counterclockwise, its inner side generates abutment force on the spring piece 34 to deform it, then the top end of the toggle rod 38 is separated from between the adjacent ratchet teeth 36, and the large disc 4 cannot drive the small disc 3 to rotate counterclockwise together through the toggle rod 38, so that the position of the lifting plate 1 does not change at this time, and the active The shaft 25 drives the second driven shaft 28 to rotate counterclockwise through the second belt 27, and the second driven shaft 28 drives the container fixed on the placement plate 8 to rotate counterclockwise, and the driving shaft 25 drives the cylinder 17 to rotate clockwise through the driving gear 18 and the driven gear 15, so that the air ejected from the cylinder 17 forms a spiral airflow. The containers and spiral airflow rotating in different directions have a better stirring effect on the magnetic microbeads and the viruses in the sample, and the stirring force generated by the airflow and the rotational force is softer, which will not cause damage to the magnetic microbeads or the sample;

[0049] When the antibody on the magnetic microbeads has completed the binding reaction with the virus in the sample, the turntable 20 is driven to rotate counterclockwise by the handheld handle, and the turntable 20 drives the screw rod 21 to rotate counterclockwise, thereby driving the screw rod 2 to rotate counterclockwise, driving the lifting plate 1 to move upward on the screw rod 2, and the lifting plate 1 drives the cylinder 17 to rise and return to its original position to wait for the next work.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0051] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for purifying and extracting aquatic viruses using magnetic beads, characterized in that: include: A workbench (10), wherein a placing plate (8) is horizontally arranged on one side of the top of the workbench (10), a screw rod (2) is vertically arranged on the other side of the top of the workbench (10), a lifting plate (1) is horizontally penetrated on the screw rod (2), a cylinder (17) is vertically penetrated at one end of the lifting plate (1) and is rotatably connected, a through hole (16) is opened on the outer circumference of the cylinder (17), and a processing box (14) is welded on the top of the lifting plate (1); A clamping mechanism, wherein the clamping mechanism is used to clamp the container; A processing mechanism, the processing mechanism is used to process the air entering the processing box (14); An air supply mechanism, the air supply mechanism being used to supply air to the cylinder (17); A driving mechanism is used to drive the placement plate (8) and the cylinder (17) to rotate and to drive the lifting plate (1) to rise and fall.

2. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 1, characterized in that: Support legs (9) are vertically welded at the four corners of the bottom of the workbench (10), a controller (6) is fixedly installed at one corner of the top of the workbench (10), a top cover (23) is hinged on the top of the processing box (14), and a plurality of through holes (16) are provided and evenly distributed on the outer circumference of the cylinder (17).

3. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 1, characterized in that: The clamping mechanism comprises a clamping cylinder (12), wherein the clamping cylinder (12) is horizontally fixedly installed on one side of the top of the placement plate (8), and both output ends of the clamping cylinder (12) are fixedly connected to clamping members (11), and the two clamping members (11) are symmetrically arranged.

4. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 1, characterized in that: The lifting plate (1) and the screw rod (2) are connected by threads, a limiting rod (21) is horizontally welded on one side of the lifting plate (1), a limiting plate (19) is vertically welded on the top of the workbench (10), and a limiting groove (24) is vertically provided in the middle of one side of the limiting plate (19).

5. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 4, characterized in that: The other end of the limiting rod (21) is slidably connected to the inside of the limiting groove (24); a rotating disk (20) is welded to the top end of the screw rod (2); and a hand-held handle is vertically welded to the top edge of the rotating disk (20).

6. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 1, characterized in that: The treatment mechanism comprises a filter screen (33), an activated carbon adsorption screen (32) and an ultraviolet disinfection lamp (31); the filter screen (33) and the activated carbon adsorption screen (32) are both vertically plugged into the interior of the treatment box (14); a plurality of ultraviolet disinfection lamps (31) are provided, and the plurality of ultraviolet disinfection lamps (31) are evenly distributed at one end of the inner wall on both sides of the treatment box (14).

7. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 6, characterized in that: The air supply mechanism comprises an exhaust fan (13), the exhaust fan (13) is fixedly mounted on the top of the lifting plate (1), an exhaust pipe (30) is connected between the air inlet of the exhaust fan (13) and the processing box (14), an outlet pipe (29) is connected between the air outlet of the exhaust fan (13) and the cylinder (17), the outlet pipe (29) and the cylinder (17) are rotatably connected, and an air inlet pipe (22) is horizontally connected to the side of the processing box (14) close to the filter (33).

8. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 1, characterized in that: The driving mechanism comprises a forward and reverse motor (7), which is vertically fixedly installed in the middle of the top of the workbench (10), and a driving shaft (25) is vertically fixedly installed at the output end of the forward and reverse motor (7), and a driving gear (18) is welded to the top of the driving shaft (25), and a driven gear (15) is welded to the outer periphery of the cylinder (17), and the driven gear (15) can mesh with the driving gear (18), and a second driven shaft (28) is vertically welded at the center of the bottom of the placement plate (8), and the bottom end of the second driven shaft (28) is rotatably connected to the workbench (10).

9. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 8, characterized in that: A second belt (27) is connected between the driving shaft (25) and the second driven shaft (28); a first driven shaft (5) is vertically rotatably connected to one side of the top of the workbench (10); a first belt (26) is connected between the driving shaft (25) and the first driven shaft (5); a large disc (4) is welded to the top of the first driven shaft (5); a circular groove (35) is provided on the top of the large disc (4); a small disc (3) is rotatably connected to the center of the circular groove (35).

10. The device for purifying and extracting aquatic viruses by magnetic bead method according to claim 9, characterized in that: A plurality of ratchet teeth (36) are uniformly welded inside the circular groove (35); a toggle rod (38) is rotatably connected to the outer periphery of the top of the small disc (3); a front end of the toggle rod (38) abuts between two ratchet teeth (36); a spring sheet (34) and a limit pin (37) are respectively welded on the inner and outer sides of the toggle rod (38) at the top of the small disc (3); the spring sheet (34) and the limit pin (37) abut against the inner and outer sides of the toggle rod (38) respectively; and the bottom end of the screw rod (2) is welded to the center of the small disc (3).

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