An alcohol-free magnetic bead method virus extract freeze-drying device

Abstract

The present application relates to freeze-drying equipment technical field, disclose a kind of alcohol-free magnetic bead method virus extract freeze-drying equipment, including base, the upper surface of the base is rotatably installed carousel, the circumference direction of the carousel upper surface is equidistantly opened four counterbores, the inside of the counterbores is placed with glass dish.The square column drives driving block to move close to carousel, driving block drives two C-shaped clamps to move away from each other by driving groove and driving column, at this time, cap will fall into the glass dish below, seals the port of glass dish, through the device, cap can be timely covered on the port of glass dish after virus extract in glass dish is dried out, avoid external moisture into glass dish inside, affect the drying of virus extract, at the same time, avoid experimenter manually one by one to cover cap on glass dish, reduce the workload of experimenter.

Description

Technical Field

[0001] This invention relates to the field of freeze-drying equipment technology, and more particularly to a freeze-drying equipment for virus extracts using an alcohol-free magnetic bead method. Background Technology

[0002] Freeze-drying equipment (also known as a lyophilizer or vacuum freeze dryer) is specifically designed for the freeze-drying (or vacuum drying) process. In virus extraction, especially in the alcohol-free magnetic bead method, it is often used to freeze the extract containing the virus, and then, through a process of heating under reduced pressure, directly convert the frozen water in the sample into a gaseous state, thereby achieving the purpose of removing moisture without damaging the sample.

[0003] In existing freeze-drying equipment, the glass dishes containing virus extracts are embedded inside the feeding tray. When operators need to remove the glass dishes, they have to pry them out one by one with their fingers, which is inconvenient for operators. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an alcohol-free magnetic bead method for freeze-drying virus extracts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An alcohol-free magnetic bead freeze-drying device for virus extracts includes a base. A turntable is rotatably mounted on the upper surface of the base. Four countersunk holes are equidistantly spaced along the circumference of the upper surface of the turntable. Glass dishes are placed inside the countersunk holes. A locking slot is formed on the outer circumference of the turntable near the four countersunk holes. Two support blocks are symmetrically fixedly mounted on the lower surface of one end of the base. A rocker arm is rotatably mounted between the two support blocks. A circular arc through hole is formed through the bottom wall of each of the four countersunk holes. The circular arc through hole is centered on the turntable. A top column is slidably inserted into the lower surface of the base near the rocker arm. The top of the top column passes through the circular arc through hole and abuts against the lower surface of the glass dish. A sliding groove is formed through the outer surface of the rocker arm near the top column. A sliding column is installed on the inner wall of the bottom end of the top column and is slidably mounted to the inner wall of the sliding groove.

[0007] As a further embodiment of the present invention, a mounting bracket is fixedly installed at one end of the base, a through groove is opened through the upper surface of the mounting bracket, a push plate is slidably installed on the inner wall of the through groove, a second triangular top block is fixedly installed on the outer surface of the push plate near the top column, a square slide rod is fixedly installed on the outer surface of the other side of the push plate, and a baffle is fixedly installed through the outer surface of the push plate at the other end of the square slide rod.

[0008] As a further embodiment of the present invention, a first spring is sleeved on the outer surface of the square slide rod, the first spring is disposed between the push plate and the mounting bracket, a guide post is fixedly installed between the inner walls of the bottom end of the push plate, and a guide groove is opened through the outer surface of the other end of the rocker arm, and the guide post is slidably installed with the inner wall of the guide groove.

[0009] As a further embodiment of the present invention, a circular hole is provided through the upper surface of the base, and a freeze-drying cylinder is fixedly installed between the inner walls of the circular hole. A notch is provided on the outer circumference of the freeze-drying cylinder near the turntable, and the outer surface of the turntable abuts against the inner wall of the notch. One of the countersunk holes is located inside the freeze-drying cylinder. A servo motor is fixedly installed on the lower surface of the base, and the output end of the servo motor is fixedly installed through the lower surface of the base and at the rotation center of the turntable.

[0010] As a further embodiment of the present invention, an installation plate is fixedly installed between the inner walls of the freeze-drying cylinder near the top. Multiple ventilation openings are equidistantly provided on the outer surface of the installation plate. A fan is rotatably installed on the lower surface of the middle position of the installation plate. A first pulley is fixedly installed through the upper surface of the installation plate at the top of the fan. A rotating shaft is inserted through the upper surface of the installation plate. A second pulley is fixedly installed at the top of the rotating shaft. A first belt is fitted onto the outer surfaces of the first and second pulleys. A drive motor is fixedly installed on the lower surface of the base. The bottom end of the rotating shaft is fixedly connected to the output end of the drive motor through the lower surface of the freeze-drying cylinder.

[0011] As a further embodiment of the present invention, a spiral heat exchange tube is fixedly installed on the inner wall of the freeze-drying cylinder. The inlet and outlet ends of the spiral heat exchange tube both penetrate the outer surface of the freeze-drying cylinder. A gas pipe connector is fixedly installed at the top of the freeze-drying cylinder, and the gas pipe connector is connected to the interior of the freeze-drying cylinder.

[0012] As a further embodiment of the present invention, a column is fixedly installed on the upper surface of one side of the base, and a C-shaped cylinder is fixedly installed on the upper surface of the column near the turntable. The C-shaped cylinder is positioned directly above one of the countersunk holes. Multiple caps are placed vertically aligned on the inner wall of the C-shaped cylinder. An installation opening is provided through the outer surface of the column near the bottom end. Two C-shaped clamps are symmetrically and rotatably installed on the top wall of the installation opening. The two C-shaped clamps are positioned directly above the countersunk holes.

[0013] As a further embodiment of the present invention, a limiting sleeve is fixedly installed on the upper surface of the base near the mounting port. A square column is slidably installed on the inner wall of the limiting sleeve. A first triangular apex block is fixedly installed on one end of the square column near the turntable. A second spring is sleeved on the outer surface of the square column. The second spring is disposed between the first triangular apex block and the limiting sleeve. A driving block is fixedly installed on the other end of the square column through the outer surface of the limiting sleeve. A driving groove is opened through the outer surface of the two C-shaped clamps near the driving block. Two driving columns are symmetrically fixedly installed on the upper surface of the driving block. The two driving columns are slidably installed with the inner walls of the two driving grooves respectively.

[0014] As a further embodiment of the present invention, the two hypotenuses of the first triangular apex block and the second triangular apex block respectively abut against the two sides of the bayonet.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The first triangular apex block slides into the inner wall of the bayonet through the force of the second spring. The two inclined sides of the first triangular apex block abut against the two sides of the bayonet. At the same time, the square column drives the drive block to move closer to the turntable. The drive block drives the two C-shaped clamps to move away from each other through the drive groove and drive column. At this time, the cap will fall onto the glass dish below and seal the port of the glass dish. With this device, after the virus extract inside the glass dish dries, the cap can be placed on the port of the glass dish in time to prevent external moisture from entering the glass dish and affecting the drying of the virus extract. At the same time, it avoids the experimenter from manually putting the cap on the glass dish one by one, reducing the workload of the experimenter.

[0017] 2. By rotating the turntable, the second triangular top block slides into the slot. At this time, the first spring pushes the square sliding rod to move closer to the glass dish. The square sliding rod drives the push plate to move closer to the glass dish. The push plate drives the other end of the rocker arm to tilt up through the guide groove and guide post. The rocker arm drives the top post to rise through the sliding post and sliding groove, lifting the glass dish so that the operator can easily remove it. This device facilitates the removal of the dried glass dish from the inside of the countersunk hole, avoiding the operator having to pry the glass dish out with their fingers, making it convenient for the operator to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a freeze-drying device for virus extracts using an alcohol-free magnetic bead method proposed in this invention.

[0019] Figure 2 This is a bottom view schematic diagram of a freeze-drying device for virus extracts using an alcohol-free magnetic bead method proposed in this invention.

[0020] Figure 3This is a cross-sectional structural schematic diagram of a freeze-drying device for virus extracts using an alcohol-free magnetic bead method proposed in this invention;

[0021] Figure 4 This is a schematic diagram of the turntable of a freeze-drying device for virus extracts using an alcohol-free magnetic bead method, as proposed in this invention.

[0022] Figure 5 This is a schematic diagram of the arc-shaped through-hole of a freeze-drying device for virus extracts using an alcohol-free magnetic bead method, as proposed in this invention.

[0023] Figure 6 This is a schematic diagram of the top column of a freeze-drying device for virus extracts using an alcohol-free magnetic bead method proposed in this invention;

[0024] Figure 7 This is a schematic diagram of the first triangular apex block of a freeze-drying device for virus extracts using an alcohol-free magnetic bead method proposed in this invention;

[0025] Figure 8 for Figure 1 A magnified view of a portion of point A in the middle.

[0026] In the diagram: 1. Base; 2. Freeze-drying cylinder; 3. Turntable; 4. Glass dish; 5. Cap; 6. Gas pipe connector; 7. Spiral heat exchange tube; 8. Support block; 9. Rocker arm; 10. Top column; 11. Mounting plate; 12. Fan; 13. Slide groove; 14. Guide groove; 15. First pulley; 16. Belt; 17. Second pulley; 18. Shaft; 19. Mounting bracket; 20. Second triangular top block; 21. Push 21. Plate; 22. First spring; 23. Square slide rod; 24. Baffle; 25. Sliding column; 26. Guide column; 27. Drive motor; 28. Servo motor; 29. ​​Column; 30. C-shaped cylinder; 31. Countersunk hole; 32. Arc through hole; 33. Bayonet; 34. Through groove; 35. C-shaped clamp; 36. First triangular top block; 37. Drive block; 38. Limiting sleeve; 39. Second spring; 40. Drive column. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Reference Figures 1-8A freeze-drying device for virus extracts using an alcohol-free magnetic bead method includes a base 1. A turntable 3 is rotatably mounted on the upper surface of the base 1. Four countersunk holes 31 are equidistantly spaced along the circumference of the upper surface of the turntable 3. A glass dish 4 is placed inside the countersunk holes 31. A latch 33 is formed on the outer circumference of the turntable 3 near the four countersunk holes 31. Two support blocks 8 are symmetrically fixedly mounted on the lower surface of one end of the base 1. A rocker arm 9 is rotatably mounted between the two support blocks 8. A circular arc through hole 32 is formed through the bottom wall of each of the four countersunk holes 31. The circular arc through hole 32 is centered on the turntable 3. A top post 10 is slidably inserted into the lower surface of the base 1 near the rocker arm 9. The top end of the top post 10 passes through the circular arc through hole 32 and abuts against the lower surface of the glass dish 4. A sliding groove 13 is formed through the outer surface of the rocker arm 9 near the top post 10. A sliding column 25 is installed on the inner wall of the bottom end of the top post 10. The inner wall of the slide groove 13 is slidably installed. One end of the base 1 is fixedly installed with a mounting bracket 19. The upper surface of the mounting bracket 19 is provided with a through groove 34. The inner wall of the through groove 34 is slidably installed with a push plate 21. The outer surface of the push plate 21 near the top column 10 is fixedly installed with a second triangular top block 20. The outer surface of the other side of the push plate 21 is fixedly installed with a square slide rod 23. The other end of the square slide rod 23 is provided with a baffle 24 through the outer surface of the push plate 21. The outer surface of the square slide rod 23 is fitted with a first spring 22. The first spring 22 is located between the push plate 21 and the mounting bracket 19. The inner wall of the bottom end of the push plate 21 is fixedly installed with a guide post 26. The outer surface of the other end of the rocker arm 9 is provided with a guide groove 14. The guide post 26 is slidably installed with the inner wall of the guide groove 14. The two inclined sides of the first triangular top block 36 and the second triangular top block 20 abut against the two sides of the bayonet 33 respectively.

[0031] As the turntable 3 rotates, the second triangular top block 20 slides into the inside of the bayonet 33. At this time, the first spring 22 pushes the square slide rod 23 to move closer to the glass dish 4. The square slide rod 23 drives the push plate 21 to move closer to the glass dish 4. The push plate 21 drives the other end of the rocker arm 9 to tilt up through the guide groove 14 and the guide post 26. The rocker arm 9 drives the top post 10 to rise through the slide post 25 and the slide groove 13, lifting the glass dish 4 so that the operator can easily take out the glass dish 4. This device makes it easy to take out the dried glass dish 4 from the inside of the countersunk hole 31, avoiding the operator having to pry the glass dish 4 out with their fingers, and making it convenient for the operator to use.

[0032] In this embodiment, a circular hole is formed through the upper surface of the base 1, and a freeze-drying cylinder 2 is fixedly installed between the inner walls of the circular hole. A notch is formed on the outer circumference of the freeze-drying cylinder 2 near the turntable 3, and the outer surface of the turntable 3 abuts against the inner wall of the notch. One countersunk hole 31 is located inside the freeze-drying cylinder 2. A servo motor 28 is fixedly installed on the lower surface of the base 1, and the output end of the servo motor 28 is fixedly installed through the lower surface of the base 1 and at the rotation center of the turntable 3. A mounting plate 11 is fixedly installed between the inner walls of the freeze-drying cylinder 2 near the top. Multiple ventilation holes are formed through the outer surface of the mounting plate 11 at equal intervals. A fan 12 is rotatably installed on the lower surface of the middle position of the mounting plate 11. The top of the fan 12... A first pulley 15 is fixedly installed through the upper surface of the mounting plate 11. A rotating shaft 18 is inserted through the upper surface of the mounting plate 11. A second pulley 17 is fixedly installed at the top of the rotating shaft 18. A first belt 16 is fitted on the outer surfaces of the first pulley 15 and the second pulley 17. A drive motor 27 is fixedly installed on the lower surface of the base 1. The bottom end of the rotating shaft 18 passes through the lower surface of the freeze-drying cylinder 2 and is fixedly connected to the output end of the drive motor 27. A spiral heat exchange tube 7 is fixedly installed on the inner wall of the freeze-drying cylinder 2. The air inlet and air outlet of the spiral heat exchange tube 7 both pass through the outer surface of the freeze-drying cylinder 2. A gas pipe connector 6 is fixedly installed at the top of the freeze-drying cylinder 2. The gas pipe connector 6 is connected to the interior of the freeze-drying cylinder 2.

[0033] In operation, the operator places the glass dish 4 containing the virus extract into the recess 31. Then, the servo motor 28 drives the turntable 3 to rotate 90°, which moves the glass dish 4 into the freeze-drying cylinder 2. The spiral heat exchange tube 7 is connected to an external refrigeration pump through a gas pipe, which cools the freeze-drying cylinder 2, freezing the moisture in the virus extract inside the glass dish 4 into ice. The gas pipe connector 6 is then connected to an external vacuum pump to create a vacuum inside the freeze-drying cylinder 2. The moisture inside the virus extract is removed by the sublimation of ice in the vacuum, thus drying the virus extract. The drive motor 27 drives the rotating shaft 18 to rotate, which in turn drives the second pulley 17 to rotate. The second pulley 17 drives the first pulley 15 to rotate through the first belt 16. The first pulley 15 drives the fan 12 to rotate, which in turn circulates the air inside the freeze-drying cylinder 2, accelerating the freezing of the moisture inside the virus extract.

[0034] In this embodiment, a column 29 is fixedly installed on the upper surface of one side of the base 1. A C-shaped cylinder 30 is fixedly installed on the upper surface of the column 29 near the turntable 3. The C-shaped cylinder 30 is positioned directly above one of the countersunk holes 31. Multiple caps 5 are placed vertically aligned on the inner wall of the C-shaped cylinder 30. An installation opening is provided through the outer surface of the column 29 near the bottom. Two C-shaped clamps 35 are symmetrically and rotatably installed on the top wall of the installation opening. The two C-shaped clamps 35 are positioned directly above the countersunk hole 31. A limiting sleeve 38 is fixedly installed on the upper surface of the base 1 near the installation opening. A square column is slidably installed on the inner wall. A first triangular top block 36 is fixedly installed on one end of the square column near the turntable 3. A second spring 39 is sleeved on the outer surface of the square column. The second spring 39 is located between the first triangular top block 36 and the limiting sleeve 38. A driving block 37 is fixedly installed on the other end of the square column through the outer surface of the limiting sleeve 38. Two C-shaped clamps 35 are provided with driving grooves through the outer surface of the driving block 37. Two driving columns 40 are symmetrically fixedly installed on the upper surface of the driving block 37. The two driving columns 40 are slidably installed on the inner walls of the two driving grooves respectively.

[0035] After drying a portion of the virus extract, the turntable 3 is rotated out by the directional rotation of the servo motor 28. As the turntable 3 rotates, when the latch 33 on the turntable 3 reaches the position of the first triangular apex 36, the force of the second spring 39 causes the first triangular apex 36 to slide into the inner wall of the latch 33. The two inclined sides of the first triangular apex 36 abut against the two sides of the latch 33. Simultaneously, the square column drives the drive block 37 to move closer to the turntable 3. The drive block 37, through the drive groove and drive column 40, drives the two C-shaped clamps 35 to move away from each other. At this time, the cap 5 falls onto the glass dish 4 below, sealing the port of the glass dish 4. When the turntable 3 rotates again, the glass dish 4 is carried out, and at the same time, the first triangular top block 36 is pushed out. Since the cap 5 on the glass dish 4 has an overlap distance with the other cap 5 above it, when the cap 5 on the glass dish 4 leaves, the two C-shaped clamps 35 will reset and catch the cap 5 inside the C-shaped cylinder 30. With this device, after the virus extract inside the glass dish 4 has dried, the cap 5 can be placed on the port of the glass dish 4 in time to prevent external moisture from entering the glass dish 4 and affecting the drying of the virus extract. At the same time, it avoids the experimenter from manually putting the caps 5 on the glass dishes 4 one by one, reducing the workload of the experimenter.

[0036] It should be noted that, in use, the operator places the glass dish 4 containing the virus extract into the recess 31, and then the servo motor 28 drives the turntable 3 to rotate 90°. The turntable 3 moves the glass dish 4 into the freeze-drying cylinder 2. The spiral heat exchange tube 7 is connected to an external refrigeration pump through a gas pipe, allowing the spiral heat exchange tube 7 to cool the freeze-drying cylinder 2, thereby freezing the moisture in the virus extract inside the glass dish 4 into ice. Then, the gas pipe connector 6 is connected to an external vacuum pump to evacuate the freeze-drying cylinder 2. The moisture inside the virus extract is removed by the sublimation of ice in the vacuum, thus achieving the drying of the virus extract. The drive motor 27 drives the rotating shaft 18 to rotate, causing the rotating shaft 18 to... The second pulley 17 rotates, which in turn drives the first pulley 15 to rotate via the first belt 16. The first pulley 15 drives the fan 12 to rotate, causing airflow inside the freeze-drying cylinder 2 and accelerating the freezing of moisture inside the virus extract. After drying one batch of virus extract, the servo motor 28 rotates the turntable 3. When the latch 33 on the turntable 3 rotates to the position of the first triangular apex 36, the force of the second spring 39 causes the first triangular apex 36 to slide into the inner wall of the latch 33. The two inclined sides of the first triangular apex 36 abut against the two sides of the latch 33. At the same time, the square column drives the drive block 37 to move closer to the turntable 3. 37. The drive groove and drive column 40 drive the two C-shaped clamps 35 to move away from each other. At this time, the cap 5 will fall onto the glass dish 4 below, sealing the port of the glass dish 4. When the turntable 3 rotates again, the glass dish 4 is carried out, and at the same time, the first triangular top block 36 is pushed out. Since the cap 5 on the glass dish 4 has an overlap distance with the other cap 5 above it, when the cap 5 on the glass dish 4 leaves, the two C-shaped clamps 35 will reset and catch the cap 5 inside the C-shaped cylinder 30. With this device, after the virus extract inside the glass dish 4 has dried, the cap 5 can be promptly placed on the port of the glass dish 4 to prevent external moisture from entering the glass dish 4 and affecting the drying of the virus extract. At the same time, it avoids the experiment... Personnel manually place the caps 5 onto the glass dishes 4 one by one, reducing the workload of the experimenters. At the same time, the rotation of the turntable 3 causes the second triangular top block 20 to slide into the inside of the bayonet 33. At this time, the first spring 22 pushes the square slide rod 23 to move closer to the glass dish 4. The square slide rod 23 drives the push plate 21 to move closer to the glass dish 4. The push plate 21 drives the other end of the rocker arm 9 to tilt up through the guide groove 14 and the guide post 26. The rocker arm 9 drives the top post 10 to rise through the slide post 25 and the slide groove 13, lifting the glass dish 4 so that the operator can easily take it out. This device makes it easy to take out the dried glass dish 4 from the inside of the countersunk hole 31, avoiding the operator having to pry the glass dish 4 out with their fingers, making it convenient for the operator to use.

[0037] 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 illustrative of the principles of 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 this invention is defined by the appended claims and their equivalents.

Claims

1. A freeze-drying apparatus for virus extracts using an alcohol-free magnetic bead method, comprising a base (1), characterized in that, A turntable (3) is rotatably mounted on the upper surface of the base (1). Four countersunk holes (31) are equidistantly spaced on the circumference of the upper surface of the turntable (3). A glass dish (4) is placed inside the countersunk hole (31). A latch (33) is provided on the outer circumference of the turntable (3) near the four countersunk holes (31). Two support blocks (8) are symmetrically fixed on the lower surface of one end of the base (1). A rocker arm (9) is rotatably mounted between the two support blocks (8). A circular arc is provided through the bottom wall of each of the four countersunk holes (31). Hole (32), the arc-shaped through hole (32) and the turntable (3) are located at the same center. The base (1) is slidably inserted with a top column (10) near the lower surface of the rocker arm (9). The top of the top column (10) passes through the arc-shaped through hole (32) and abuts against the lower surface of the glass dish (4). The outer surface of the rocker arm (9) near the top column (10) is provided with a sliding groove (13). The inner wall fixing rod at the bottom of the top column (10) is equipped with a sliding column (25). The sliding column (25) is slidably installed with the inner wall of the sliding groove (13). A mounting bracket (19) is fixedly installed at one end of the base (1). A through groove (34) is opened through the upper surface of the mounting bracket (19). A push plate (21) is slidably installed on the inner wall of the through groove (34). A second triangular top block (20) is fixedly installed on the outer surface of the push plate (21) near the top column (10). A square slide rod (23) is fixedly installed on the outer surface of the other side of the push plate (21). A baffle plate (24) is fixedly installed through the outer surface of the push plate (21) at the other end of the square slide rod (23). A first spring (22) is sleeved on the outer surface of the square slide rod (23). The first spring (22) is located between the push plate (21) and the mounting bracket (19). The inner wall of the bottom end of the push plate (21) is... A guide post (26) is fixedly installed between the two ends of the rocker arm (9). A guide groove (14) is opened through the outer surface of the other end of the rocker arm (9). The guide post (26) and the inner wall of the guide groove (14) are slidably installed. A circular hole is opened through the upper surface of the base (1). A freeze-drying cylinder (2) is fixedly installed between the inner walls of the circular hole. A notch is opened on the outer circumference of the freeze-drying cylinder (2) near the turntable (3). The outer surface of the turntable (3) abuts against the inner wall of the notch. One of the countersunk holes (31) is set inside the freeze-drying cylinder (2). A servo motor (28) is fixedly installed on the lower surface of the base (1). The output end of the servo motor (28) is fixedly installed through the lower surface of the base (1) and at the rotation center of the turntable (3).

2. The freeze-drying equipment for virus extracts using alcohol-free magnetic beads according to claim 1, characterized in that, An installation plate (11) is fixedly installed between the inner walls of the freeze-drying cylinder (2) near the top. Multiple ventilation holes are equidistantly opened on the outer surface of the installation plate (11). A fan (12) is rotatably installed on the lower surface of the middle position of the installation plate (11). A first pulley (15) is fixedly installed through the upper surface of the installation plate (11) at the top of the fan (12). A rotating shaft (18) is inserted through the upper surface of the installation plate (11). A second pulley (17) is fixedly installed at the top of the rotating shaft (18). A first belt (16) is sleeved on the outer surface of the first pulley (15) and the second pulley (17). A drive motor (27) is fixedly installed on the lower surface of the base (1). The bottom end of the rotating shaft (18) is fixedly connected to the output end of the drive motor (27) through the lower surface of the freeze-drying cylinder (2).

3. The freeze-drying equipment for virus extracts using alcohol-free magnetic beads according to claim 2, characterized in that, The inner wall of the freeze-drying cylinder (2) is fixedly installed with a spiral heat exchange tube (7). The inlet and outlet ends of the spiral heat exchange tube (7) penetrate the outer surface of the freeze-drying cylinder (2). The top end of the freeze-drying cylinder (2) is fixedly installed with a gas pipe connector (6). The gas pipe connector (6) is connected to the inside of the freeze-drying cylinder (2).

4. The alcohol-free magnetic bead freeze-drying equipment for virus extracts according to claim 3, characterized in that, A column (29) is fixedly installed on the upper surface of one side of the base (1). A C-shaped cylinder (30) is fixedly installed on the upper surface of the column (29) near the turntable (3). The C-shaped cylinder (30) is located directly above one of the countersunk holes (31). Multiple caps (5) are placed vertically aligned on the inner wall of the C-shaped cylinder (30). An installation port is opened through the outer surface of the column (29) near the bottom. Two C-shaped clamps (35) are symmetrically and rotatably installed on the top wall of the installation port. The two C-shaped clamps (35) are located directly above the countersunk hole (31).

5. The freeze-drying equipment for virus extracts using alcohol-free magnetic beads according to claim 4, characterized in that, A limiting sleeve (38) is fixedly installed on the upper surface of the base (1) near the mounting port. A square column is slidably installed on the inner wall of the limiting sleeve (38). A first triangular top block (36) is fixedly installed on one end of the square column near the turntable (3). A second spring (39) is sleeved on the outer surface of the square column. The second spring (39) is located between the first triangular top block (36) and the limiting sleeve (38). A driving block (37) is fixedly installed on the other end of the square column through the outer surface of the limiting sleeve (38). A driving groove is opened through the outer surface of the two C-shaped clamps (35) near the driving block (37). Two driving columns (40) are symmetrically fixedly installed on the upper surface of the driving block (37). The two driving columns (40) are slidably installed with the inner walls of the two driving grooves respectively.

6. The alcohol-free magnetic bead freeze-drying equipment for virus extracts according to claim 5, characterized in that, The two hypotenuses of the first triangular apex block (36) and the second triangular apex block (20) abut against the two sides of the bayonet (33).

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