A high-speed refrigerated centrifuge for biological experiments

Abstract

This utility model relates to the field of experimental instrument technology, specifically to a high-speed refrigerated centrifuge for biological experiments, comprising a main unit, the main unit including an isolation shell and a centrifugal motor fixedly installed at the bottom of the isolation shell, the centrifugal motor having a rotating shaft at its top, a connecting bracket fixedly installed on the outer wall of the rotating shaft, a test tube detachably mounted on the connecting bracket, a refrigeration unit fixedly installed on the inner wall of the isolation shell, and a downwardly extending sliding track on the top surface of the isolation shell, with a sealing cover slidably connected to the inner wall of the sliding track.

Description

Technical Field

[0001] This utility model relates to the field of experimental instrument technology, specifically to a high-speed refrigerated centrifuge for biological experiments. Background Technology

[0002] A high-speed refrigerated centrifuge is a laboratory centrifuge that combines high-speed rotation with cryogenic control. It is an indispensable instrument in modern biochemistry, molecular biology, cell biology, and medical testing. Typically, it consists of a rotor, a motor, and a refrigeration system. During use, the sample is placed in a centrifuge tube, which is then placed in the rotor. Driven by the motor, the rotor rotates at high speed, generating centrifugal force to separate, purify, or concentrate the sample. High-speed refrigerated centrifuges can generate very high rotational speeds, thus producing powerful centrifugal force, enabling them to quickly and effectively separate components with small density differences within a sample. Simultaneously, the integrated precision refrigeration system allows for accurate temperature control within the centrifugation chamber. While generating powerful separation capabilities through high-speed rotation, the precise cryogenic control of the centrifuge protects temperature-sensitive biological samples, ensuring the accuracy of experimental results and the integrity of the samples.

[0003] Although the existing technologies mentioned above can solve the corresponding technical problems, they still have certain drawbacks: when the cooling temperature of the existing high-speed refrigerated centrifuge is below 0°C during use, ice will gradually form on the inner wall of the centrifuge due to its cooling effect. During continuous use, the ice will gradually thicken. When the ice layer reaches a certain thickness, it is easy for the test tubes placed inside to collide and come into contact with the ice layer during rotation, causing damage and affecting the normal operation of the refrigerated centrifuge. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a high-speed refrigerated centrifuge for biological experiments that prevents excessive ice buildup and avoids damage to test tubes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed refrigerated centrifuge for biological experiments, comprising a main unit, the main unit comprising an isolation shell and a centrifugal motor fixedly installed at the bottom of the isolation shell, the centrifugal motor having a rotating shaft at its top, a connecting bracket fixedly installed on the outer wall of the rotating shaft, test tubes being detachably mounted on the connecting bracket, a refrigeration unit being fixedly installed on the inner wall of the isolation shell, and a downwardly extending sliding track being provided on the top surface of the isolation shell, with a sealing cover slidably connected to the inner wall of the sliding track.

[0006] A further improvement is that a polished metal layer is also fixedly installed on the inner wall of the isolation shell.

[0007] A further improvement is that a control panel is also fixedly installed on the outer surface of the host.

[0008] A further improvement is that the sealing cover includes a cover body and a positioning rod that is fixedly installed on the bottom surface of the cover body and slidably connected to the inner wall of the sliding track. The lower surface of the cover body is also fixedly installed with a de-icing structure that can fit against and slide against the inner wall of the isolation shell.

[0009] A further improvement is that a sealing ring is also embedded in the lower surface of the cover body.

[0010] A further improvement is that the de-icing structure is an extension frame that is fixedly installed on the lower surface of the cover body and can slide against the inner wall of the isolation shell.

[0011] A further improvement is that the bottom surface of the extension frame is also provided with a collar that can fit against and slide against the inner wall of the isolation shell.

[0012] A further improvement is that the bottom surface of the collar is integrally formed with a wedge-shaped ring structure.

[0013] The beneficial effects of this utility model after adopting the above technical solution are as follows: This utility model has an ice-removing structure below the cover body of the sealing cap. Each time it is used, the sample is put into the test tube and then the test tube is put into the connecting bracket. During the process of putting in the sealing cap, the ice-removing structure will move downward against the inner wall of the isolation shell. Then the sealing cap is rotated to remove the ice layer on the inner wall of the isolation shell. After centrifugation, when the sealing cap is pulled up, the ice-removing structure will move upward against the inner wall of the isolation shell. At this time, the ice layer generated during centrifugation can be removed. This prevents a large amount of condensed ice layer from forming on the inner wall of the isolation shell, which would cause the condensed ice layer to contact and collide with the test tube during centrifugation, thus ensuring that the equipment can operate normally during long-term continuous use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the refrigerated centrifuge of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the front cross-section of the main unit of this utility model;

[0017] Figure 3This is a structural schematic diagram of the front cross-section of the sealing cap of this utility model;

[0018] Figure 4 This is a top view of the de-icing structure of this utility model. Detailed Implementation

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0020] See Figure 1-4As shown, the technical solution adopted in this specific embodiment is: a high-speed refrigerated centrifuge for biological experiments, including a main unit 1. The main unit 1 includes an isolation shell 11 and a centrifugal motor 12 fixedly installed at the bottom of the isolation shell 11. The centrifugal motor 12 has a rotating shaft 13 at its top. A connecting bracket 14 is fixedly installed on the outer wall of the rotating shaft 13. Test tubes 15 are detachably mounted on the connecting bracket 14. A refrigerator 17 is fixedly installed on the inner wall of the isolation shell 11. A downwardly extending sliding track 18 is provided on the top surface of the isolation shell 11. A sealing cover 16 is slidably connected to the inner wall of the sliding track 18. The sealing cover 16 includes a cover body 22 and a component fixedly installed on the bottom surface of the cover body 22 and connected to the sliding track 17. The positioning rod 21 is slidably connected to the inner wall of the cover body 22. A de-icing structure that can slide against and conform to the inner wall of the isolation shell 11 is also fixedly installed on the lower surface of the cover body 22. The de-icing structure is an extension frame 23 fixedly installed on the lower surface of the cover body 22 that can slide against and conform to the inner wall of the isolation shell 11. In use, the cover body 22 of the sealing cover 16 above the isolation shell 11 is pulled upwards, causing the positioning rod 21 to slide upwards along the sliding track 18. The sliding track 18 is a circular groove structure from a top view. The sealing cover 16 can then be removed. At this point, the test tube 15 loaded on the connecting bracket 14 inside the isolation shell 11 can be removed. Then, the sample is loaded into the test tube 15, and the test tube is reloaded. The test tube 15 is inserted into the connecting bracket 14, and then the sealing cap 16 is reinserted. During the insertion of the sealing cap 16, the de-icing extension frame 23 is moved downward against the inner wall of the isolation shell 11. When it reaches the bottom, the cap body 22 of the sealing cap 16 is rotated, causing it to rotate under the guidance of the sliding track 18. This causes the cap body 22 to drive the extension frame 23 to rotate, thereby scraping away the ice layer on the inner wall of the isolation shell 11 through the rotating extension frame 23. Then, the centrifuge motor 12 can be started to drive the rotating shaft 13 to rotate and centrifuge the sample in the test tube 15. The refrigerator 17 generates a low temperature, which can provide... The compressors used in the centrifuges are all existing technologies and will not be described in detail here. After centrifugation, before pulling up the sealing cap 16, first rotate the cap body 22 of the sealing cap 16 so that it drives the extension frame 23 to rotate synchronously, thereby scraping and breaking down the ice layer generated during the freezing centrifugation process. Then, pull up the sealing cap 16 to remove it, at which point the test tube 15 can be taken out to obtain the centrifuged sample. By rotating the sealing cap before and after the centrifuge starts working, the condensed ice layer is removed, thereby preventing a large amount of condensed ice layer from forming on the inner wall of the isolation shell 11, which would cause the condensed ice layer to come into contact with and collide with the test tube 15 during centrifugation, ensuring that the equipment can operate normally during long-term continuous use.

[0021] The inner wall of the isolation shell 11 is also fixedly installed with a polished metal layer 19, which helps to make the inner wall of the isolation shell 11 smoother, thereby reducing the resistance when the extension frame 23 of the sealing cover 16 moves downward and rotates, and making the ice layer easier to peel off.

[0022] A control panel 2 is also fixedly installed on the outer surface of the main unit 1, which makes it easier to control the rotation speed and freezing temperature of the main unit 1.

[0023] A sealing ring 25 is also embedded in the lower surface of the lid body 22, which helps to improve the sealing effect of the lid body 22, thereby preventing external heat from entering and making the freezing effect better;

[0024] The bottom surface of the extension frame 23 is also provided with a collar 24 that can fit against and slide against the inner wall of the isolation shell 11. This is beneficial for scraping and removing the condensed ice on the inner wall of the isolation shell 11 more thoroughly during the downward movement of the extension frame 23, so that the extension frame 23 can remove the condensed ice layer without additional rotation.

[0025] The bottom surface of the collar 24 is integrally formed with a wedge-shaped ring structure, which makes it easier to remove the condensed ice layer when the collar 24 moves downward.

[0026] The working principle of this utility model is as follows: When using this utility model, the cover body 22 of the sealing cover 16 above the isolation shell 11 is pulled upward, causing the positioning rod 21 to slide upward along the sliding track 18. The sliding track 18 has a circular groove structure when viewed from above. Then, the sealing cover 16 can be removed. At this time, the test tube 15 loaded on the connecting bracket 14 inside the isolation shell 11 can be removed. Then, the sample is loaded into the test tube 15, and the test tube 15 is put back into the connecting bracket 14. Then, the sealing cover 16 is put back in. During the process of putting in the sealing cover 16, the de-icing structure extension frame 23 is moved downward against the inner wall of the isolation shell 11. When it reaches the bottom, the cover body 22 of the sealing cover 16 is rotated, causing it to rotate under the guidance of the sliding track 18. The cover body 22 drives the extension frame 23 to rotate, thereby removing the ice layer on the inner wall of the isolation shell 11 through the rotation of the extension frame. The frame 23 is used for scraping and cleaning. Then, the centrifuge motor 12 is started to drive the rotating shaft 13 to rotate and centrifuge the sample in the test tube 15. The refrigerator 17 generates a low temperature. The refrigerator 17 can be a compressor for centrifuges. Both are existing technologies and will not be described in detail here. After centrifugation, before pulling up the sealing cover 16, first rotate the cover body 22 of the sealing cover 16 to make it drive the extension frame 23 to rotate synchronously. Then, scrape off and break the ice layer generated during the freezing centrifugation. Then, pull up the sealing cover 16 to remove it. At this time, the test tube 15 can be taken out to obtain the centrifuged sample. By rotating the sealing cover before and after the centrifuge is working, the condensed ice layer is removed. This prevents a large amount of condensed ice layer from forming on the inner wall of the isolation shell 11, which would cause the condensed ice layer to come into contact with and collide with the test tube 15 during centrifugation. This ensures that the equipment can operate normally during long-term continuous use.

[0027] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A high-speed refrigerated centrifuge for biological experiments, comprising a main unit (1), the main unit (1) comprising an isolation shell (11) and a centrifugal motor (12) fixedly installed at the bottom of the isolation shell (11), the centrifugal motor (12) having a rotating shaft (13) at its top end, a connecting bracket (14) fixedly installed on the outer wall of the rotating shaft (13), a test tube (15) being detachably mounted on the connecting bracket (14), and a refrigeration unit (17) fixedly installed on the inner wall of the isolation shell (11), characterized in that: The top surface of the isolation shell (11) is provided with a downwardly extending sliding track (18), and a sealing cover (16) is slidably connected to the inner wall of the sliding track (18).

2. The high-speed refrigerated centrifuge for biological experiments according to claim 1, characterized in that: A polished metal layer (19) is also fixedly installed on the inner wall of the isolation shell (11).

3. A high-speed refrigerated centrifuge for biological experiments according to claim 1, characterized in that: A control panel (2) is also fixedly installed on the outer surface of the host (1).

4. A high-speed refrigerated centrifuge for biological experiments according to claim 1, characterized in that: The sealing cover (16) includes a cover body (22) and a positioning rod (21) fixedly installed on the bottom surface of the cover body (22) and slidably connected to the inner wall of the sliding track (18). The lower surface of the cover body (22) is also fixedly installed with a de-icing structure that can fit against and slide against the inner wall of the isolation shell (11).

5. A high-speed refrigerated centrifuge for biological experiments according to claim 4, characterized in that: A sealing ring (25) is also embedded in the lower surface of the cover body (22).

6. A high-speed refrigerated centrifuge for biological experiments according to claim 4, characterized in that: The de-icing structure is an extension frame (23) that is fixedly installed on the lower surface of the cover body (22) and can fit against and slide against the inner wall of the isolation shell (11).

7. A high-speed refrigerated centrifuge for biological experiments according to claim 6, characterized in that: The bottom surface of the extension frame (23) is also provided with a collar (24) that can fit against and slide against the inner wall of the isolation shell (11).

8. A high-speed refrigerated centrifuge for biological experiments according to claim 7, characterized in that: The bottom surface of the collar (24) is integrally formed with a wedge-shaped ring structure.

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