Purifying ultracentrifugation experimental device

Abstract

The utility model relates to a purification ultracentrifugation experimental facility, including: base and operating device, operating device includes vertical rod, tubular piece, connecting block and fastening component, fastening component includes with connecting block movable connection's abutting piece, one end of abutting piece passes through the connecting block and tubular piece and is connected with abutting plate, abutting plate is used for abutting with the centrifuge tube, and the other end of abutting piece passes through the tubular piece and is connected with the tubular piece. The centrifugal tube is fixed on the inner side wall of the cylindrical part, the abutting plate is located in the cylindrical part, and a first through hole used for avoiding the abutting part is formed in the cylindrical part. The abutting piece is arranged to be movably connected with the connecting block, the position of the abutting piece is adjusted at will so that the centrifugal tubes of various sizes can be clamped, frequent replacement of the clamping device is avoided, and operation is convenient; the abutting piece is connected with the abutting plate, the abutting plate abuts against the centrifugal tube and fixes the centrifugal tube, the contact area between the centrifugal tube and the abutting piece is large, the contact area between the centrifugal tube and the cylindrical piece is large, during sampling, the centrifugal tube can be prevented from shaking, and sampling is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of test equipment, and more specifically to a purification ultracentrifugation experimental device. Background Art

[0002] In the ultracentrifugation experiment of purification of microorganisms, organelles and molecular components, after the sample is placed in a centrifuge tube and centrifuged, the separation and stratification of the sample is observed, a specific stratification is selected, and then a syringe is used to pierce the centrifuge tube to collect the sample of the stratification for further research. In existing experiments, an iron stand is generally used with a clamp to clamp the centrifuge tube, and then an ordinary desk lamp is used for lighting to observe the sample. The contact area between the clamp and the centrifuge tube is limited, and the clamping is not stable enough. When the syringe is used to pierce, the centrifuge tube is prone to offset, resulting in inaccurate sampling and affecting the experimental results. Moreover, the opening angle of the clamp on the iron stand is limited, and only a small number of centrifuge tubes can be adapted. Centrifuge tubes with large size differences need to be clamped with a replacement clamp. The brightness, uniformity and color temperature of ordinary desk lamps are not very stable, and it is easy to misjudge due to lighting when observing sample stratification. At the same time, ordinary desk lamps have poor heat dissipation, and the temperature is high when used for a long time, which will affect the sample. At the same time, the weight of the iron stand is heavy and it is inconvenient to move when in use. Moreover, after using a syringe to take samples, the centrifuge tube is punctured and the sample may flow out of the punctured hole, causing microbial leakage and posing a safety risk. Utility Model Content

[0003] In order to overcome the defects in the above-mentioned prior art that the clamps of the iron frame can only adapt to a small number of centrifuge tubes and the clamping is not stable enough, the utility model provides a purification ultracentrifugation experimental device, which can meet the clamping requirements of centrifuge tubes of various sizes and also ensure the clamping stability.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a purification ultracentrifugation experimental device, comprising: a base, an operating device connected to the base, the operating device comprising a vertical rod connected to the base, a cylindrical member connected to the vertical rod, a connecting block connected to the cylindrical member, and a fastening assembly connected to the connecting block, the fastening assembly comprising an abutment member movably connected to the connecting block, one end of the abutment member passes through the connecting block and the cylindrical member and is connected to an abutment plate, the abutment plate is used to abut against a centrifuge tube and fix the centrifuge tube on the inner side wall of the cylindrical member, the abutment plate is located in the cylindrical member, and the cylindrical member is provided with a first through hole for avoiding the abutment member.

[0005] The cylindrical member is connected to the base through a vertical rod. The cylindrical member is used to assist in fixing the centrifuge tube. In the fastening assembly, the abutment member is movably connected to the connecting block. One end of the abutment member extends into the cylindrical member, and an abutment plate is provided to abut the centrifuge tube, and then cooperates with the cylindrical member to clamp and fix the centrifuge tube on the inner side wall of the cylindrical member. The centrifuge tube is clamped between the abutment plate and the cylindrical member, and the contact area is large. The clamping effect is relatively stable, which avoids the shaking of the centrifuge tube when the syringe is sampled. By adjusting the position of the abutment member, the distance between the abutment plate and the inner side wall of the cylindrical member can be infinitely adjusted, and any centrifuge tube with a diameter smaller than the inner diameter of the cylindrical member can be clamped, so that more centrifuge tubes can be adapted, and frequent switching of the clamping device can be avoided, which is convenient for operation.

[0006] Specifically, the abutment member can be a bolt threadedly connected to the connecting block, and the centrifuge tube can be fixed by tightening the bolt; the abutment member can also be a cross bar slidably connected to the connecting block. The cross bar can be manually pushed to squeeze the centrifuge tube, and then the cross bar can be fixed to indirectly fix the centrifuge tube. There are also many ways to fix the cross bar. The cross bar can be closely matched with the connecting block to increase the sliding friction resistance and fix the cross bar by friction. Bolts can also be connected to the connecting block and the cross bar can be fixed by tightening the bolts.

[0007] Furthermore, the connection block is slidably connected to the cylindrical member. The upper and lower positions of the connection block can be adjusted, and the centrifuge tube can be fixed more flexibly. Furthermore, the connection block includes a slider slidably connected to the first through hole and a fixed block threadedly connected to the slider. The slider is provided with a boss abutting against the inner side wall of the cylindrical member. The fixed block is tightened relative to the slider, thereby clamping the cylindrical wall of the cylindrical member to fix the connection block.

[0008] Preferably, the cylindrical member comprises a first curved plate connected to the vertical rod and a second curved plate connected to the first curved plate, wherein the second curved plate is located at a side away from the vertical rod and is made of a transparent material.

[0009] The second curved plate is connected to the cylindrical member through the first curved plate. The second curved plate can be made of transparent resin, transparent plastic or transparent glass, etc. The operator can directly observe the centrifuge tube through the second curved plate.

[0010] Preferably, the second arc-shaped plate is provided with a lens portion for conveniently observing the centrifuge tube.

[0011] The lens portion may be provided with a concave lens or a convex lens, etc., so as to magnify or reduce the centrifuge tube, which is more conducive to observing the stratification of the sample in the centrifuge tube.

[0012] Preferably, the second arc-shaped plate is provided with a second through hole for a syringe to take samples, and a scale is provided next to the second through hole.

[0013] The syringe inserts the needle through the second through hole, and then can pierce into the centrifuge tube for sampling. At the same time, a scale is provided next to the second through hole to facilitate the determination and recording of the puncture position, so as to achieve more accurate sampling, thereby improving the accuracy of the test results. Furthermore, the first through hole and the second through hole are symmetrical relative to the center of the cylindrical member, so that the abutment moves from the first through hole toward the second through hole. When the syringe pierces the hole, the piercing force is directed toward the abutment, which can make the centrifuge tube more stable and less prone to shaking. Furthermore, the second through hole is located on one side of the second arc plate. Scales are provided on both sides of the second arc plate.

[0014] Preferably, a closing portion for preventing the centrifuge tube from falling is provided at the bottom of the cylindrical member, and the opening diameter of the closing portion is smaller than the diameter of the cylindrical member.

[0015] The closing portion is provided to prevent the centrifuge tube from slipping when the operator places the centrifuge tube into the cylindrical member, thereby ensuring the safety of the test. At the same time, the opening diameter of the closing portion is smaller than the diameter of the minimum specification centrifuge tube.

[0016] Preferably, the upper and lower parts of the vertical rod are respectively connected to lighting devices whose lighting directions can be adjusted arbitrarily, and the operating device also includes a connecting plate connected to the base, and the vertical rod is connected to the connecting plate. The connecting plate is also provided with a light-transmitting hole, and the light-transmitting hole is located directly below the opening of the closing part.

[0017] Lighting devices are arranged above and below the vertical rod to improve the illumination and facilitate observation by the operator. Furthermore, the lighting device is connected with a heat sink. This prevents the lighting device from being overheated and affecting the microorganisms. Furthermore, the lighting device uses a lamp with a stable color temperature. A light-transmitting hole is arranged on the connecting plate to allow light to irradiate the bottom of the centrifuge tube.

[0018] Preferably, a transparent member covering the light-transmitting hole is connected to the connecting plate.

[0019] The transparent part is used to protect the lighting device located below from being contaminated by the dripping sample. The transparent part can be made of transparent resin, transparent plastic or transparent glass.

[0020] Preferably, a plurality of the operating devices are connected to the base, and all of the operating devices are slidably connected to the base.

[0021] The operating device is slidably connected to the base, which is convenient for stably moving the operating device and the centrifuge tube, and is convenient for movement and avoids overflow or drop of samples in the centrifuge tube during movement, which does not affect the experimental operation and is also convenient for moving different centrifuge tubes for mutual comparison after the experimental operation is completed.

[0022] Preferably, a receiving groove is provided on the base, and the receiving groove is located directly below the operating device, and all the operating devices are slidably connected to the base via a slide rail.

[0023] A receiving tank is provided to collect accidentally dropped samples to prevent the samples from contaminating the laboratory. Furthermore, the receiving tank is made of a material that is highly anti-fouling and easy to clean, such as stainless steel.

[0024] Preferably, it further comprises a protective box, wherein the base is located at the bottom of the protective box, a disinfection and sterilization device is installed in the protective box, the operating device is located in the protective box, and the protective box is provided with a movable door.

[0025] The protective box and the base cooperate to surround and cover all operating devices, further preventing sample leakage and contamination of the laboratory. At the same time, a disinfection and sterilization device is installed in the protective box, which can be opened for disinfection and sterilization after each test. The disinfection and sterilization device can be selected from ultraviolet lamps, ozone sterilizers, steam sterilizers or hot air sterilizers.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] The abutment piece is movably connected to the connecting block, and the position of the abutment piece can be arbitrarily adjusted to clamp centrifuge tubes of various sizes, avoiding frequent replacement of the clamping device and facilitating operation; the abutment piece is connected to an abutment plate, which abuts against and fixes the centrifuge tube. The contact areas between the centrifuge tube, the abutment piece and the cylindrical piece are relatively large. When sampling, shaking of the centrifuge tube can be avoided, making sampling more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a purification ultracentrifugation experimental device of the utility model;

[0029] Figure 2 It is a structural schematic diagram of an operating device of a purification ultracentrifugation experimental device of the utility model;

[0030] Figure 3 It is a structural schematic diagram of an operating device of a purification ultracentrifugation experimental device of the utility model from another angle;

[0031] Figure 4 It is a schematic diagram of the top structure of an operating device of a purification ultracentrifugation experimental device of the utility model;

[0032] Figure 5 It is a structural schematic diagram of a protective box of a purification ultracentrifugation experimental device of the utility model;

[0033] Figure 6The utility model is a structural schematic diagram of a disinfection and sterilization device of a purification ultracentrifugation experimental device.

[0034] In the figure: 1. base; 2. vertical rod; 3. tubular member; 301. first arc plate; 302. second arc plate; 3021. lens part; 4. connecting block; 5. abutment member; 6. abutment plate; 7. first through hole; 8. second through hole; 9. closing part; 10. lighting device; 11. connecting plate; 1101. light-transmitting hole; 12. transparent member; 13. receiving groove; 14. protective box; 1401. box door; 1402. handle; 15. disinfection and sterilization device. DETAILED DESCRIPTION

[0035] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0036] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0038] Example 1

[0039] like Figure 1-4 As shown, a purification ultracentrifugation experimental device comprises: a base 1, an operating device connected to the base 1, the operating device comprises a vertical rod 2 connected to the base 1, a cylindrical member 3 connected to the vertical rod 2, a connecting block 4 connected to the cylindrical member 3, and a fastening assembly connected to the connecting block 4, the fastening assembly comprises an abutment member 5 movably connected to the connecting block 4, one end of the abutment member 5 passes through the connecting block 4 and the cylindrical member 3 and is connected to an abutment plate 6, the abutment plate 6 is used to abut against a centrifuge tube and fix the centrifuge tube on the inner side wall of the cylindrical member 3, the abutment plate 6 is located in the cylindrical member 3, and the cylindrical member 3 is provided with a first through hole 7 for avoiding the abutment member 5.

[0040] The cylindrical member 3 is connected to the base 1 through the vertical rod 2. The cylindrical member 3 is used to assist in fixing the centrifuge tube. In the fastening assembly, the abutment member 5 is movably connected to the connecting block 4. One end of the abutment member 5 extends into the cylindrical member 3, and is provided with an abutment plate 6 to abut the centrifuge tube, and then cooperates with the cylindrical member 3 to clamp and fix the centrifuge tube on the inner side wall of the cylindrical member 3. The centrifuge tube is clamped between the abutment plate 6 and the cylindrical member 3, and the contact area is large. The clamping effect is relatively stable, and the centrifuge tube is prevented from shaking when the syringe is sampled. By adjusting the position of the abutment member 5, the distance between the abutment plate 6 and the inner side wall of the cylindrical member 3 can be infinitely adjusted, and any centrifuge tube with a diameter smaller than the inner diameter of the cylindrical member 3 can be clamped, so that more centrifuge tubes can be adapted, and frequent switching of the clamping device can be avoided, which is convenient for operation.

[0041] Specifically, the abutment 5 can be a bolt threadedly connected to the connecting block 4, and the centrifuge tube can be fixed by tightening the bolt; the abutment 5 can also be a cross bar slidably connected to the connecting block 4. The cross bar can be manually pushed to squeeze the centrifuge tube, and then the cross bar can be fixed, so that the centrifuge tube can be indirectly fixed. There are also many ways to fix the cross bar. The cross bar can be closely matched with the connecting block 4 to increase the sliding friction resistance and fix the cross bar by friction. Bolts can also be connected to the connecting block 4 and the cross bar can be fixed by tightening the bolts.

[0042] Furthermore, the connection block 4 is slidably connected to the cylindrical member 3. The upper and lower positions of the connection block 4 can be adjusted, and the centrifuge tube can be fixed more flexibly. Furthermore, the connection block 4 includes a slider slidably connected to the first through hole 7 and a fixing block threadedly connected to the slider. The slider is provided with a boss abutting against the inner side wall of the cylindrical member 3. The fixing block is tightened relative to the slider, thereby clamping the cylindrical wall of the cylindrical member 3 to achieve the fixing of the connection block 4.

[0043] The beneficial effects of this embodiment are as follows: the abutment 5 is movably connected to the connecting block 4, and the position of the abutment 5 can be arbitrarily adjusted to clamp centrifuge tubes of various sizes, avoiding frequent replacement of the clamping device and facilitating operation; the abutment 5 is connected to the abutment plate 6, which abuts against and fixes the centrifuge tube. The contact areas between the centrifuge tube, the abutment 5 and the cylindrical member 3 are relatively large. When sampling, shaking of the centrifuge tube can be avoided, making sampling more accurate.

[0044] Example 2

[0045] like Figure 1-4 As shown, based on Example 1, the difference from Example 1 is that:

[0046] The cylindrical member 3 includes a first curved plate 301 connected to the vertical rod 2 and a second curved plate 302 connected to the first curved plate 301, and the second curved plate 302 is located on a side away from the vertical rod 2 and is made of a transparent material. A lens portion 3021 is provided on the second curved plate 302 for conveniently observing the centrifuge tube. A second through hole 8 is provided on the second curved plate 302 for sampling by a syringe, and a scale is provided next to the second through hole 8. A closing portion 9 is provided at the bottom of the cylindrical member 3 for preventing the centrifuge tube from falling, and the opening diameter of the closing portion 9 is smaller than the diameter of the cylindrical member 3. The upper and lower parts of the vertical rod 2 are respectively connected to an illuminating device 10 that can adjust the illumination direction at will, and the operating device also includes a connecting plate 11 connected to the base 1, the vertical rod 2 is connected to the connecting plate 11, and a light-transmitting hole 1101 is also provided on the connecting plate 11, and the light-transmitting hole 1101 is located directly below the opening of the closing portion 9. A transparent member 12 covering the light-transmitting hole 1101 is connected to the connecting plate 11.

[0047] The second curved plate 302 is connected to the cylindrical member 3 through the first curved plate 301. The second curved plate 302 can be made of transparent resin, transparent plastic or transparent glass. The operator can directly observe the centrifuge tube through the second curved plate 302. The lens portion 3021 can be provided with a concave lens or a convex lens, etc., so that the centrifuge tube can be enlarged or reduced, which is more conducive to observing the stratification of the sample in the centrifuge tube. The syringe inserts the needle from the second through hole 8, and then can be inserted into the centrifuge tube for sampling. At the same time, a scale is provided next to the second through hole 8, which is convenient for determining and recording the puncture position, achieving more accurate sampling, and thus improving the accuracy of the test results. Further, the first through hole 7 and the second through hole 8 are symmetrical relative to the center of the cylindrical member 3, so that the abutment 5 moves from the first through hole 7 toward the second through hole 8. When the syringe is puncturing, the puncture force direction is toward the abutment 5, which can make the centrifuge tube more stable and less prone to shaking. Further, the second through hole 8 is located on one side of the second curved plate 302. Both sides of the second curved plate 302 are respectively provided with scales. The closing portion 9 is provided to prevent the centrifuge tube from slipping when the operator places the centrifuge tube into the cylindrical member 3, thereby ensuring the safety of the test. At the same time, the opening diameter of the closing portion 9 is smaller than the diameter of the centrifuge tube of the smallest specification. Lighting devices 10 are provided above and below the vertical rod 2 to improve the illumination and facilitate observation by the operator. Furthermore, the lighting device 10 is connected to a heat sink. This prevents the lighting device 10 from being overheated and affecting the microorganisms. Furthermore, the lighting device 10 uses a lamp with a stable color temperature. A light-transmitting hole 1101 is provided on the connecting plate 11 to allow light to irradiate the bottom of the centrifuge tube. The transparent member 12 is used to protect the lighting device 10 located below from being contaminated by dripping samples, and the transparent member 12 can be made of materials such as transparent resin, transparent plastic or transparent glass.

[0048] Furthermore, the closing portion 9 may be made of a transparent material to increase the brightness of the bottom of the centrifuge tube.

[0049] Furthermore, the vertical rod 2 can be a telescopic rod. The lighting device 10 uses a goose-shaped tube to connect the lamp. Thus, the lamp can be adjusted at any angle.

[0050] The remaining features and working principles of this embodiment are consistent with those of Embodiment 1.

[0051] Example 3

[0052] like Figure 1-6 As shown, based on Example 1 or Example 2, Example 1 or Example 2 is further limited, and the difference is that:

[0053] like Figure 1 and Figure 5 As shown, a plurality of operating devices are connected to the base 1, and all the operating devices are slidably connected to the base 1. Figure 1 and Figure 5 As shown, the base 1 is provided with a receiving groove 13, which is located directly below the operating device, and all operating devices are slidably connected to the base 1 through a slide rail. Figure 5 As shown, it also includes a protection box 14, the base 1 is located at the bottom of the protection box 14, a disinfection and sterilization device 15 is installed in the protection box 14, the operating device is located in the protection box 14, and the protection box 14 is provided with a movable door 1401.

[0054] The operating device is slidably connected to the base 1, which is convenient for stably moving the operating device and the centrifuge tube, and is convenient for movement and avoiding overflow or falling of samples in the centrifuge tube during movement, which does not affect the experimental operation, and is also convenient for moving different centrifuge tubes for mutual comparison after the experimental operation. A holding tank 13 is provided to collect samples that accidentally drip, so as to avoid sample contamination of the laboratory. Further, the holding tank 13 is made of a material that is highly anti-fouling and easy to clean, such as stainless steel. The protective box 14 cooperates with the base 1 to surround and cover all operating devices, further avoiding sample leakage and contamination of the laboratory. At the same time, a disinfection and sterilization device 15 is provided in the protective box 14, and the disinfection and sterilization device 15 can be opened for disinfection and sterilization after each test. The disinfection and sterilization device 15 can be selected from ultraviolet lamps, ozone sterilizers, steam sterilizers or hot air sterilizers.

[0055] Furthermore, a handle 1402 is provided on the box door 1401 .

[0056] Furthermore, the protective box 14 is integrally provided with the base 1 or detachably connected with the base 1 .

[0057] Furthermore, a plurality of control switches connected to the lighting device 10 are arranged on the first side surface of the base 1. A control switch connected to the disinfection and sterilization device 15 is arranged on the second side surface of the base 1.

[0058] The rest of the working principle and working process of this embodiment are consistent with those of Embodiment 1 or Embodiment 2.

[0059] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A purification ultracentrifugation experimental device, characterized in that: include: A base (1), an operating device connected to the base (1), the operating device comprising a vertical rod (2) connected to the base (1), a cylindrical member (3) connected to the vertical rod (2), a connecting block (4) connected to the cylindrical member (3), and a fastening assembly connected to the connecting block (4), the fastening assembly comprising an abutment member (5) movably connected to the connecting block (4), one end of the abutment member (5) passing through the connecting block (4) and the cylindrical member (3) and connected to an abutment plate (6), the abutment plate (6) being used to abut against a centrifuge tube and fix the centrifuge tube on the inner side wall of the cylindrical member (3), the abutment plate (6) being located inside the cylindrical member (3), and the cylindrical member (3) being provided with a first through hole (7) for avoiding the abutment member (5).

2. A purification ultracentrifugation experimental device according to claim 1, characterized in that: The cylindrical member (3) comprises a first curved plate (301) connected to the vertical rod (2) and a second curved plate (302) connected to the first curved plate (301); the second curved plate (302) is located on a side away from the vertical rod (2) and is made of a transparent material.

3. A purification ultracentrifugation experimental device according to claim 2, characterized in that: The second arc-shaped plate (302) is provided with a lens portion (3021) for conveniently observing the centrifuge tube.

4. A purification ultracentrifugation experimental device according to claim 2, characterized in that: The second arc-shaped plate (302) is provided with a second through hole (8) for a syringe to take samples, and a scale is provided next to the second through hole (8).

5. The purification ultracentrifugation experimental device according to claim 1, characterized in that: The bottom of the cylindrical member (3) is provided with a closing portion (9) for preventing the centrifuge tube from falling, and the opening diameter of the closing portion (9) is smaller than the diameter of the cylindrical member (3).

6. A purification ultracentrifugation experimental device according to claim 5, characterized in that: The upper and lower parts of the vertical rod (2) are respectively connected to a lighting device (10) whose lighting direction can be adjusted arbitrarily. The operating device also includes a connecting plate (11) connected to the base (1). The vertical rod (2) is connected to the connecting plate (11). The connecting plate (11) is also provided with a light-transmitting hole (1101). The light-transmitting hole (1101) is located directly below the opening of the closing portion (9).

7. A purification ultracentrifugation experimental device according to claim 6, characterized in that: A transparent member (12) covering the light-transmitting hole (1101) is connected to the connecting plate (11).

8. A purification ultracentrifugation experimental device according to any one of claims 1 to 7, characterized in that: A plurality of operating devices are connected to the base (1), and all of the operating devices are slidably connected to the base (1).

9. A purification ultracentrifugation experimental device according to claim 8, characterized in that: The base (1) is provided with a receiving groove (13), and the receiving groove (13) is located directly below the operating device. All the operating devices are slidably connected to the base (1) via a slide rail.

10. A purification ultracentrifugation experimental device according to any one of claims 1 to 7, characterized in that: It also comprises a protective box (14), the base (1) is located at the bottom of the protective box (14), a disinfection and sterilization device (15) is installed in the protective box (14), the operating device is located in the protective box (14), and the protective box (14) is provided with a movable door (1401).

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