Centrifugal device for preparing fish vaccine

Abstract

The invention discloses a centrifugal device for fish vaccine preparation, which comprises a centrifuge main body, a centrifugal locking mechanism and a vaccine test tube placing mechanism, the centrifugal locking mechanism is arranged in the middle of the centrifuge main body, and the vaccine test tube placing mechanism is arranged on the outer side of the centrifugal locking mechanism. The centrifugal locking mechanism comprises a centrifuge protective cover, a centrifugal motor, a transmission shaft, a middle shaft positioning assembly, an overturning pushing assembly, an extrusion locking assembly and a centrifugal locking assembly, the top end of the centrifuge body is hinged to the centrifuge protective cover, the middle of the centrifuge body is fixedly connected with the centrifugal motor, and the transmission end of the centrifugal motor is rotationally connected with the transmission shaft. According to the centrifugal device for preparing the fish vaccine, the centrifugal locking mechanism and the vaccine test tube placement mechanism are arranged, the test tube insertion disc is arranged to be in a separated type, the problem of shaking during centrifugation can be avoided by locking the test tube insertion disc through the centrifugal locking mechanism during installation, and meanwhile the problem that test tubes are placed obliquely can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of vaccine preparation, in particular to a centrifugal device for preparing fish vaccines. Background Art

[0002] Vaccine preparation is a complex process that first requires selecting and studying the target pathogen, understanding its structure and pathogenic mechanism, in order to determine the design direction of the vaccine.

[0003] Fish vaccines are vaccines used to prevent and control fish diseases in aquaculture. They can help improve the health of fish stocks and reduce the occurrence of diseases, thereby increasing aquaculture production and economic benefits.

[0004] Centrifugation is a technique that uses centrifugal force to separate different components in a mixture based on differences in density. The sample is placed in a centrifuge rotor that spins at high speeds, and the centrifugal force generated distributes the components in the sample along the tube wall, thereby achieving separation.

[0005] In summary, the existing centrifuge devices still have the following technical problems: the test tube carriers of the centrifuge equipment currently used are generally fixed inside the centrifuge equipment, and the test tubes often have the problem of offset when placed. Some separate test tube carriers will shake during centrifugation after installation. Therefore, it is necessary to propose a centrifuge device for preparing fish vaccines to provide a new technical solution to solve the technical problems mentioned in the above patents. Summary of the invention

[0006] Based on this, it is necessary to provide a centrifugal device for preparing fish vaccines in response to the above-mentioned technical problems. By setting a centrifugal locking mechanism and a vaccine test tube placement mechanism, the test tube plug-in tray is set to be separate. During installation, the test tube plug-in tray can be locked by the centrifugal locking mechanism to avoid shaking during centrifugation, and the problem of tilted test tube placement can be solved.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A centrifugal device for preparing fish vaccines is applied to fish vaccine centrifugal equipment.

[0009] The centrifugal device for preparing fish vaccine specifically comprises a centrifuge body, a centrifuge locking mechanism and a vaccine test tube placement mechanism, wherein the middle part of the centrifuge body is provided with a centrifuge locking mechanism, and the outer side of the centrifuge locking mechanism is provided with a vaccine test tube placement mechanism;

[0010] The centrifugal locking mechanism comprises a centrifuge protective cover, a centrifugal motor, a transmission shaft, a central axis positioning assembly, a flip pushing assembly, a squeeze locking assembly and a centrifugal locking assembly. The top of the centrifuge body is hingedly connected to the centrifuge protective cover, the middle of the centrifuge body is fixedly connected to the centrifugal motor, and the transmission end of the centrifugal motor is rotatably connected to the transmission shaft.

[0011] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the central axis positioning assembly includes a central axis fixing rod, a test tube rack supporting tray, a first notch and a second notch, the end of the transmission shaft away from the centrifugal motor is fixedly connected to the central axis fixing rod, the surface of the central axis fixing rod is fixedly connected to the test tube rack supporting tray, the surface of the central axis fixing rod is penetrated by a first notch, and the surface of the central axis fixing rod is penetrated by a second notch.

[0012] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the flipping pushing assembly includes a cross bracket, a central axis slide rod, a sliding linkage block, a first return spring, a conical pushing head and an extrusion block, the bottom surface of the centrifuge protective cover is fixedly connected with the extrusion block, the inner wall of the central axis fixing rod is fixedly connected with two cross brackets, the middle part of the cross bracket is slidably connected with the central axis slide rod, the top end of the central axis slide rod is rollingly connected with the sliding linkage block, the sliding linkage block is slidably connected to the inner wall of the central axis fixing rod, the surface of the central axis slide rod is sleeved with a first return spring, the two ends of the first return spring are fixedly connected to the sliding linkage block and the cross bracket, and the end of the central axis slide rod away from the sliding linkage block is fixedly connected with a conical pushing head.

[0013] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the extrusion locking assembly includes a first hinged seat, a first center axis, a block reset torsion spring and a conical clamping block, the inner wall of the central axis fixing rod is symmetrically fixedly connected with the first hinged seat, the middle part of the first hinged seat is rotatably connected with the first center axis, the surface of the first center axis is fixedly connected with the conical clamping block, the surface of the first center axis is sleeved with a block reset torsion spring, and the two ends of the block reset torsion spring are fixedly connected with the first hinged seat and the conical clamping block.

[0014] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the centrifugal locking assembly includes a foot seat, a longitudinal polished rod, a central locking block, a longitudinal sliding block, a second reset spring, a centrifugal extension arm and a centrifugal clamping block, the inner wall of the central axis fixing rod is symmetrically fixedly connected with two foot seats, the middle part of the foot seat is fixedly connected with the longitudinal polished rod, the surface of the longitudinal polished rod is fixedly connected with the central locking block, the surface of the longitudinal polished rod is symmetrically slidably connected with the longitudinal sliding block, the surface of the longitudinal polished rod is sleeved with a second reset spring, the two ends of the second reset spring are fixedly connected with the longitudinal sliding block and the central locking block, the surface of the longitudinal sliding block is hingedly connected with a centrifugal extension arm, and the ends of the two centrifugal extension arms away from the longitudinal sliding block are fixedly connected with a centrifugal clamping block.

[0015] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the vaccine test tube placement mechanism includes a test tube plug-in plate, a test tube plug-in hole, an auxiliary locking component and a pushing and fixing component, the surface of the central axis fixing rod is sleeved with a test tube plug-in plate, and the surface of the test tube plug-in plate is provided with test tube plug-in holes in a circular array.

[0016] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the auxiliary locking assembly includes a third slot and a fourth slot, a third slot is opened through the middle of the test tube plug-in tray, the third slot corresponds to the first slot, and a fourth slot is opened on the surface of the test tube plug-in tray, the fourth slot corresponds to the second slot.

[0017] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the pushing and fixing assembly includes a second hinged seat, a second central axis, a push plate reset torsion spring, a pushing extension arm and a test tube fixed push plate, the middle part of the test tube plug-in plate is fixedly connected with the second hinged seat, the middle part of the second hinged seat is rotatably connected with the second central axis, the surface of the second central axis is fixedly connected with the pushing extension arm, the end of the pushing extension arm away from the second central axis is hingedly connected with the test tube fixed push plate, the surface of the second central axis is sleeved with a push plate reset torsion spring, and the two ends of the push plate reset torsion spring are respectively fixedly connected to the second hinged seat and the pushing extension arm.

[0018] As a preferred embodiment of the centrifugal device for preparing fish vaccines provided by the present invention, the pushing and fixing components are arranged in a circular array in the middle of the test tube insertion plate, and the pushing and fixing components are arranged in a one-to-one correspondence with the test tube insertion holes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The centrifugal device for preparing fish vaccines provided by the present invention sets a centrifugal locking mechanism and a vaccine test tube placement mechanism, and sets the test tube insertion plate to be separated. When installing, the test tube insertion plate is locked by the centrifugal locking mechanism to avoid the problem of shaking during centrifugation, and the problem of tilted test tube placement can be solved.

[0021] The centrifugal device for preparing fish vaccines provided by the present invention has a centrifugal locking assembly in a centrifugal locking mechanism. When the centrifugal motor drives the central axis fixing rod to rotate, the centrifugal clamping block moves outward to the middle of the fourth slot and the second slot under the centrifugal force, and at the same time, the centrifugal extension arm pulls the longitudinal sliding block to slide on the surface of the longitudinal light rod, thereby realizing the re-locking of the entire test tube plug-in plate.

[0022] The centrifugal device for preparing fish vaccines provided by the present invention has an auxiliary locking component in the vaccine test tube placement mechanism. When the test tube is installed, the test tube fixing push plate is pushed by pushing the extension arm to squeeze the test tube, thereby fixing the test tube in the middle of the test tube insertion plate, thereby avoiding shaking of the test tube during the centrifugation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the overall structure of a centrifugal device for preparing fish vaccines provided by the present invention;

[0025] Figure 2 A schematic plan view of the centrifuge structure of a centrifuge for preparing fish vaccines provided by the present invention;

[0026] Figure 3 Centrifugal device for preparing fish vaccine provided by the present invention Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0027] Figure 4 A schematic diagram of the internal structure of a centrifuge body of a centrifuge device for preparing fish vaccines provided by the present invention;

[0028] Figure 5 A schematic diagram of the structure of a centrifugal locking mechanism of a centrifugal device for preparing fish vaccines provided by the present invention;

[0029] Figure 6 A schematic diagram of the internal structure of a centrifugal locking mechanism of a centrifugal device for preparing fish vaccines provided by the present invention;

[0030] Figure 7 Centrifugal device for preparing fish vaccine provided by the present invention Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 8 A schematic diagram of the structure of a vaccine test tube placement mechanism of a centrifugal device for preparing fish vaccines provided by the present invention;

[0032] Fig. 9 A schematic structural diagram of an auxiliary locking assembly in a vaccine test tube placement mechanism of a centrifugal device for preparing fish vaccines provided by the present invention.

[0033] The markings in the figure are as follows:

[0034] 1. Centrifuge body; 2. Centrifugal locking mechanism; 3. Vaccine test tube placement mechanism; 4. Centrifuge protective cover; 5. Centrifugal motor; 6. Transmission shaft; 7. Central axis fixing rod; 8. Test tube rack tray; 9. First notch; 10. Cross bracket; 11. Central axis sliding rod; 12. Sliding linkage block; 13. First reset spring; 14. Conical push head; 15. First hinge seat; 16. First central axis; 17. Block reset torsion spring; 18. Conical clamping block; 19. Second notch; 20. Foot seat; 21. Longitudinal light rod; 22. Center locking block; 23. Longitudinal sliding block; 24. Second reset spring; 25. Centrifugal extension arm; 26. Centrifugal clamping block; 27. Test tube plug-in plate; 28. Test tube plug-in hole; 29. ​​Third notch; 30. Fourth notch; 31. Second hinge seat; 32. Second center axis; 33. Push plate reset torsion spring; 34. Push extension arm; 35. Test tube fixing push plate; 36. Extrusion block. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] As described in the background art, the test tube carriers of the centrifuge equipment currently used are generally fixed inside the centrifuge equipment, and the test tubes often have the problem of offset when placed. Some separate test tube carriers will shake during centrifugation after installation.

[0037] In order to solve this technical problem, the present invention provides a centrifugal device for preparing fish vaccines, which is applied to fish vaccine centrifugal equipment.

[0038] Specifically, please refer to Figure 1The centrifugal device for preparing fish vaccine specifically includes a centrifuge body 1, a centrifuge locking mechanism 2 and a vaccine test tube placement mechanism 3. The centrifuge locking mechanism 2 is arranged in the middle of the centrifuge body 1, and the vaccine test tube placement mechanism 3 is arranged on the outer side of the centrifuge locking mechanism 2.

[0039] The centrifugal device for preparing fish vaccines provided by the present invention is configured with a centrifugal locking mechanism 2 and a vaccine test tube placement mechanism 3, and the test tube insertion plate 27 is configured to be separated. During installation, the test tube insertion plate 27 is locked by the centrifugal locking mechanism 2 to avoid the problem of shaking during centrifugation, and the problem of tilted test tube placement can be solved.

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0041] Embodiment 1:

[0042] Please refer to Figure 8-Figure 9 A centrifugal device for preparing fish vaccines, wherein the centrifugal locking mechanism 2 comprises a centrifuge protective cover 4, a centrifugal motor 5, a transmission shaft 6, a central axis positioning component, a flip pushing component, an extrusion locking component and a centrifugal locking component. The top of the centrifuge body 1 is hingedly connected with the centrifuge protective cover 4, the middle part of the centrifuge body 1 is fixedly connected with the centrifugal motor 5, and the transmission end of the centrifugal motor 5 is rotatably connected with the transmission shaft 6.

[0043] The vaccine test tube placement mechanism 3 includes a test tube insertion plate 27, a test tube insertion hole 28, an auxiliary locking component and a pushing and fixing component. The surface of the central axis fixing rod 7 is sleeved with a test tube insertion plate 27, and the surface of the test tube insertion plate 27 is provided with test tube insertion holes 28 in a circular array.

[0044] Specifically, the auxiliary locking assembly includes a third slot 29 and a fourth slot 30. A third slot 29 is provided through the middle of the test tube plug-in tray 27, and the third slot 29 corresponds to the first slot 9. A fourth slot 30 is provided on the surface of the test tube plug-in tray 27, and the fourth slot 30 corresponds to the second slot 19.

[0045] Specifically, the pushing and fixing assembly includes a second hinged seat 31, a second center axis 32, a push plate reset torsion spring 33, a pushing extension arm 34 and a test tube fixed push plate 35. The middle part of the test tube plug-in plate 27 is fixedly connected to the second hinged seat 31, the middle part of the second hinged seat 31 is rotatably connected to the second center axis 32, the surface of the second center axis 32 is fixedly connected to the pushing extension arm 34, the end of the pushing extension arm 34 away from the second center axis 32 is hingedly connected to the test tube fixed push plate 35, the surface of the second center axis 32 is sleeved with a push plate reset torsion spring 33, and the two ends of the push plate reset torsion spring 33 are respectively fixedly connected to the second hinged seat 31 and the pushing extension arm 34.

[0046] Specifically, the push-fix components are arranged in a ring array in the middle of the test tube insertion plate 27, and the push-fix components are arranged in a one-to-one correspondence with the test tube insertion holes 28.

[0047] Through the above structural design, the test tube plug-in plate 27 is removed from the surface of the central axis fixing rod 7 before the device is used. After completion, the test tube is inserted into the middle of the test tube plug-in plate 27 through the test tube plug-in hole 28. The test tube contacts the test tube fixing push plate 35 during the process of the middle part of the test tube plug-in plate 27 descending. The test tube fixing push plate 35 is squeezed and moves inward. At this time, the test tube fixing push plate 35 squeezes the test tube to fix the test tube. After the test tube is installed, it can be plugged into the surface of the central axis fixing rod 7.

[0048] Embodiment 2:

[0049] The centrifugal device for preparing the fish vaccine provided in Example 1 was further optimized, specifically, Figure 2-Figure 7 As shown, the central axis positioning assembly includes a central axis fixing rod 7, a test tube rack supporting tray 8, a first notch 9 and a second notch 19. The end of the transmission shaft 6 away from the centrifugal motor 5 is fixedly connected to the central axis fixing rod 7, the surface of the central axis fixing rod 7 is fixedly connected to the test tube rack supporting tray 8, the surface of the central axis fixing rod 7 is penetrated by a first notch 9, and the surface of the central axis fixing rod 7 is penetrated by a second notch 19.

[0050] Specifically, the flip pushing assembly includes a cross bracket 10, a central axis slide bar 11, a sliding linkage block 12, a first return spring 13, a conical pushing head 14 and an extrusion block 36. The bottom surface of the centrifuge protective cover 4 is fixedly connected with the extrusion block 36. The inner wall of the central axis fixing rod 7 is fixedly connected with two cross brackets 10. The middle part of the cross bracket 10 is slidably connected with the central axis slide bar 11. The top end of the central axis slide bar 11 is rollingly connected with the sliding linkage block 12. The sliding linkage block 12 is slidably connected to the inner wall of the central axis fixing rod 7. The surface of the central axis slide bar 11 is sleeved with a first return spring 13. The two ends of the first return spring 13 are fixedly connected with the sliding linkage block 12 and the cross bracket 10. The end of the central axis slide bar 11 away from the sliding linkage block 12 is fixedly connected with the conical pushing head 14.

[0051] Specifically, the extrusion locking assembly includes a first articulated seat 15, a first center axis 16, a block reset torsion spring 17 and a conical clamping block 18. The inner wall of the central axis fixing rod 7 is symmetrically fixedly connected with the first articulated seat 15, the middle part of the first articulated seat 15 is rotatably connected with the first center axis 16, the surface of the first center axis 16 is fixedly connected with the conical clamping block 18, the surface of the first center axis 16 is sleeved with a block reset torsion spring 17, and both ends of the block reset torsion spring 17 are fixedly connected to the first articulated seat 15 and the conical clamping block 18.

[0052] Specifically, the centrifugal locking assembly includes a foot seat 20, a longitudinal light rod 21, a center locking block 22, a longitudinal sliding block 23, a second return spring 24, a centrifugal extension arm 25 and a centrifugal clamping block 26. The inner wall of the central axis fixing rod 7 is symmetrically fixedly connected to two foot seats 20, the middle part of the foot seat 20 is fixedly connected to the longitudinal light rod 21, the surface of the longitudinal light rod 21 is fixedly connected to the center locking block 22, the surface of the longitudinal light rod 21 is symmetrically slidably connected to the longitudinal sliding block 23, the surface of the longitudinal light rod 21 is sleeved with a second return spring 24, the two ends of the second return spring 24 are fixedly connected to the longitudinal sliding block 23 and the center locking block 22, the surface of the longitudinal sliding block 23 is hingedly connected to the centrifugal extension arm 25, and the ends of the two centrifugal extension arms 25 away from the longitudinal sliding block 23 are fixedly connected to the centrifugal clamping block 26.

[0053] Through the above structural design, the centrifuge protective cover 4 is flipped downward before the device is used. The centrifuge protective cover 4 is flipped and the extrusion block 36 is driven to move. After the extrusion block 36 contacts the sliding linkage block 12, the sliding linkage block 12 is pushed to slide downward on the inner wall of the central axis fixing rod 7. During the sliding process of the sliding linkage block 12, the first return spring 13 is squeezed and the central axis slide bar 11 is pushed to slide downward. During the sliding process of the central axis slide bar 11, the conical push head 14 is driven to move downward. After the conical push head 14 contacts the conical clamping block 18, the conical push head 14 is pushed downward. The conical clamping block 18 drives the first central axis 16 to rotate in the middle of the first hinge seat 15, and at the same time, the clamping block reset torsion spring 17 accumulates elastic potential energy, and the conical clamping block 18 flips to the middle of the first notch 9 and the third notch 29 to lock the test tube plug-in plate 27. At this time, the centrifugal motor 5 is turned on, and the centrifugal motor 5 drives the central axis fixing rod 7 to rotate as a whole through the transmission shaft 6. During the rotation of the central axis fixing rod 7, the test tube plug-in plate 27 is driven to rotate to realize the centrifugation of the vaccine in the test tube. During the rotation of the central axis fixing rod 7, the centrifugal clamping block 26 is subjected to centrifugal force The centrifugal motor 5 is turned off after the centrifugal operation is completed. At this time, the centrifugal force exerted on the centrifugal locking mechanism 2 disappears, and the second return spring 24 can push the longitudinal sliding block 23 to slide on the surface of the longitudinal polished rod 21. The longitudinal sliding block 23 is pulled by the centrifugal extension arm 25 to move to the central axis and fixed. The second notch 19 and the fourth notch 30 can be unlocked inside the rod 7, the centrifuge protective cover 4 can be opened, the extrusion block 36 stops squeezing the sliding linkage block 12, and the first return spring 13 pushes the sliding linkage block 12 to drive the central axis slide bar 11 and the conical push head 14 to move upward, and the conical push head 14 stops pushing the conical clamping block 18. At this time, the clamping block return torsion spring 17 releases elastic potential energy to drive the conical clamping block 18 to flip toward the inside of the central axis fixing rod 7, thereby realizing the unlocking of the first notch 9 and the third notch 29.

Claims

1. A centrifugal device for preparing fish vaccines, characterized in that; The centrifuge comprises a centrifuge body (1), a centrifuge locking mechanism (2) and a vaccine test tube placement mechanism (3), wherein the centrifuge locking mechanism (2) is arranged in the middle of the centrifuge body (1), and the vaccine test tube placement mechanism (3) is arranged outside the centrifuge locking mechanism (2); The centrifugal locking mechanism (2) comprises a centrifuge protective cover (4), a centrifugal motor (5), a transmission shaft (6), a central axis positioning component, a flip pushing component, a squeeze locking component and a centrifugal locking component; the top end of the centrifuge body (1) is hingedly connected to the centrifuge protective cover (4); the middle part of the centrifuge body (1) is fixedly connected to the centrifugal motor (5); and the transmission end of the centrifugal motor (5) is rotatably connected to the transmission shaft (6).

2. The centrifugal device for preparing fish vaccines according to claim 1, characterized in that: The central axis positioning assembly comprises a central axis fixing rod (7), a test tube rack supporting tray (8), a first notch (9) and a second notch (19); one end of the transmission shaft (6) away from the centrifugal motor (5) is fixedly connected to the central axis fixing rod (7); the surface of the central axis fixing rod (7) is fixedly connected to the test tube rack supporting tray (8); the surface of the central axis fixing rod (7) is provided with a first notch (9) extending through it; and the surface of the central axis fixing rod (7) is provided with a second notch (19) extending through it.

3. The centrifugal device for preparing fish vaccines according to claim 2, characterized in that: The flip push assembly comprises a cross bracket (10), a central axis slide bar (11), a sliding linkage block (12), a first return spring (13), a conical push head (14) and an extrusion block (36); the bottom surface of the centrifuge protective cover (4) is fixedly connected with the extrusion block (36); the inner wall of the central axis fixing rod (7) is fixedly connected with two cross brackets (10); the middle part of the cross bracket (10) is slidably connected with the central axis slide bar (11); the top end of the central axis slide bar (11) is rollingly connected with the sliding linkage block (12); the sliding linkage block (12) is slidably connected to the inner wall of the central axis fixing rod (7); the surface of the central axis slide bar (11) is sleeved with a first return spring (13); the two ends of the first return spring (13) are fixedly connected with the sliding linkage block (12) and the cross bracket (10); and the end of the central axis slide bar (11) away from the sliding linkage block (12) is fixedly connected with the conical push head (14).

4. The centrifugal device for preparing fish vaccines according to claim 3, characterized in that: The extrusion locking assembly comprises a first hinge seat (15), a first central axis (16), a clamping block reset torsion spring (17) and a conical clamping block (18); the inner wall of the central axis fixing rod (7) is symmetrically fixedly connected with the first hinge seat (15); the middle part of the first hinge seat (15) is rotatably connected with the first central axis (16); the surface of the first central axis (16) is fixedly connected with the conical clamping block (18); the surface of the first central axis (16) is sleeved with a clamping block reset torsion spring (17); and the two ends of the clamping block reset torsion spring (17) are fixedly connected with the first hinge seat (15) and the conical clamping block (18).

5. The centrifugal device for preparing fish vaccines according to claim 4, characterized in that: The centrifugal locking assembly comprises a foot seat (20), a longitudinal light rod (21), a central locking block (22), a longitudinal sliding block (23), a second return spring (24), a centrifugal extension arm (25) and a centrifugal clamping block (26); the inner wall of the central axis fixing rod (7) is symmetrically fixedly connected with two foot seats (20); the middle part of the foot seat (20) is fixedly connected with the longitudinal light rod (21); the surface of the longitudinal light rod (21) is fixedly connected with the central locking block (22); the surface of the longitudinal light rod (21) is symmetrically slidably connected with the longitudinal sliding block (23); the surface of the longitudinal light rod (21) is sleeved with a second return spring (24); the two ends of the second return spring (24) are fixedly connected with the longitudinal sliding block (23) and the central locking block (22); the surface of the longitudinal sliding block (23) is hingedly connected with a centrifugal extension arm (25); and the ends of the two centrifugal extension arms (25) away from the longitudinal sliding block (23) are fixedly connected with the centrifugal clamping block (26).

6. The centrifugal device for preparing fish vaccines according to claim 5, characterized in that: The vaccine test tube placement mechanism (3) comprises a test tube insertion plate (27), test tube insertion holes (28), an auxiliary locking component and a pushing and fixing component. The surface of the central axis fixing rod (7) is sleeved with the test tube insertion plate (27), and the surface of the test tube insertion plate (27) is provided with test tube insertion holes (28) in a circular array.

7. The centrifugal device for preparing fish vaccines according to claim 6, characterized in that: The auxiliary locking assembly comprises a third notch (29) and a fourth notch (30); the third notch (29) is provided through the middle of the test tube insertion plate (27); the third notch (29) corresponds to the first notch (9); the surface of the test tube insertion plate (27) is provided with a fourth notch (30); the fourth notch (30) corresponds to the second notch (19).

8. The centrifugal device for preparing fish vaccines according to claim 7, characterized in that: The pushing and fixing assembly comprises a second hinged seat (31), a second central axis (32), a push plate reset torsion spring (33), a pushing extension arm (34) and a test tube fixed push plate (35); the middle part of the test tube plug-in plate (27) is fixedly connected to the second hinged seat (31); the middle part of the second hinged seat (31) is rotatably connected to the second central axis (32); the surface of the second central axis (32) is fixedly connected to the pushing extension arm (34); one end of the pushing extension arm (34) away from the second central axis (32) is hingedly connected to the test tube fixed push plate (35); the surface of the second central axis (32) is sleeved with a push plate reset torsion spring (33); the two ends of the push plate reset torsion spring (33) are respectively fixedly connected to the second hinged seat (31) and the pushing extension arm (34).

9. The centrifugal device for preparing fish vaccines according to claim 8, characterized in that: The pushing and fixing components are arranged in a circular array in the middle of the test tube insertion plate (27), and the pushing and fixing components are arranged in a one-to-one correspondence with the test tube insertion holes (28).

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