Multi-size centrifuge tube adapters and centrifuge devices

Abstract

This utility model discloses a multi-specification centrifuge tube adapter and a centrifugation device. The multi-specification centrifuge tube adapter includes: a main adapter cylinder comprising an integrally formed first mounting cylinder and a second mounting cylinder, the first mounting cylinder having a first inner diameter cavity and the second mounting cylinder having a second inner diameter cavity; and a secondary adapter cylinder having a third inner diameter cavity, which can be installed within the first inner diameter cavity or on the outer wall of the second mounting cylinder; wherein the inner diameters of the first, third, and second inner diameter cavities decrease sequentially; the first inner diameter cavity contains a first centrifuge tube for positioning and embedding the adapter; the second inner diameter cavity contains a second centrifuge tube for positioning and embedding the adapter; and the third inner diameter cavity contains a third centrifuge tube for positioning and embedding the adapter. This utility model enables a single adapter to accommodate centrifuge tubes of three different diameters, overcoming the limitation of existing related technologies that can only accommodate centrifuge tubes of two different diameters, thus optimizing the application to centrifuge tubes of three different diameters.

Description

Technical Field

[0001] This utility model relates to the field of biomedical device technology, and in particular to a multi-specification centrifuge tube adapter and centrifugation device. Background Technology

[0002] Existing adapter solutions are designed for various centrifuge tube sizes, requiring the selection of appropriate adapters to accommodate different tube sizes. This increases the risk of operators picking the wrong tube size and also complicates adapter management.

[0003] To address the aforementioned issues, Chinese patent application number 202122030268.8 discloses a universal adapter for centrifuge tubes, which can be applied to two different types of centrifuge tubes, namely a first centrifuge tube and a second centrifuge tube with different diameters.

[0004] However, in the aforementioned patented technologies, the wall of the second centrifuge tube cannot make large-area contact with the outer wall of the inner cavity; it only relies on the protrusion at the tube cap for restraint, which makes the tube body prone to instability during centrifugal rotation. More importantly, it can only be applied to two different sizes of centrifuge tubes, and cannot be used for more sizes of centrifuge tubes. Utility Model Content

[0005] The purpose of this invention is to provide a multi-specification centrifuge tube adapter and centrifugation device, aiming to solve the problem that existing centrifuge tube adapters are difficult to use for centrifuge tubes of more specifications.

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is achieved through the following technical solution: providing a multi-specification centrifuge tube adapter and centrifugation device, comprising:

[0007] The main adapter tube includes an integrally formed first mounting tube and a second mounting tube, wherein the first mounting tube has a first inner diameter cavity and the second mounting tube has a second inner diameter cavity.

[0008] The auxiliary adapter cylinder has a third inner diameter cavity inside. The auxiliary adapter cylinder can be installed in the first inner diameter cavity or on the outer wall of the second mounting cylinder.

[0009] The inner diameters of the first inner diameter cavity, the third inner diameter cavity, and the second inner diameter cavity decrease sequentially; the first inner diameter cavity contains a first centrifuge tube for limiting and fitting the adapter; the second inner diameter cavity contains a second centrifuge tube for limiting and fitting the adapter; and the third inner diameter cavity contains a third centrifuge tube for limiting and fitting the adapter.

[0010] Furthermore, the outer wall of the auxiliary adapter cylinder can be threaded into the inner wall of the first inner diameter cavity.

[0011] Furthermore, the inner wall of the secondary adapter cylinder can be threaded onto the outer wall of the second mounting cylinder.

[0012] Furthermore, when the outer wall thread of the auxiliary adapter cylinder is fitted into the inner wall of the first inner diameter cavity, the third centrifuge tube can be limited and fitted into the third inner diameter cavity, or the second centrifuge tube can be limited and fitted into the second inner diameter cavity.

[0013] Furthermore, when the inner wall of the auxiliary adapter cylinder is threaded onto the outer wall of the second mounting cylinder, the first centrifuge tube can be limited and embedded in the first inner diameter cavity, or the second centrifuge tube can be limited and embedded in the second inner diameter cavity.

[0014] Furthermore, a first limiting notch is provided on the outer edge of the opening of the first mounting cylinder; the first limiting notch is used to limit and cooperate with the first protrusion provided on the outer side of the first centrifuge tube cap in the outer circumferential direction when the first centrifuge tube is embedded in the first inner diameter cavity.

[0015] Furthermore, a second limiting notch is provided on the outer edge of the opening of the second mounting cylinder; the second limiting notch is used to limit and cooperate with the second protrusion provided on the outer side of the second centrifuge tube cap in the outer circumferential direction when the second centrifuge tube is embedded in the second inner diameter cavity.

[0016] Furthermore, a third limiting notch is provided on the outer edge of the opening of the auxiliary adapter tube; the third limiting notch is used to limit and cooperate with the third protrusion provided on the outer side of the third centrifuge tube cap in the outer circumferential direction when the third centrifuge tube is embedded in the third inner diameter cavity.

[0017] Furthermore, the outer edge of the other opening of the secondary adapter cylinder is also provided with a clearance notch; when the inner wall thread of the secondary adapter cylinder is fitted onto the outer wall of the second mounting cylinder, the clearance notch corresponds to the position of the second limiting notch; when the outer wall thread of the secondary adapter cylinder is screwed into the first inner diameter cavity, the third limiting notch corresponds to the position of the first limiting notch.

[0018] This utility model embodiment also provides a centrifuge device, wherein: the centrifuge device is provided with a clamping cavity, and the clamping cavity is used to clamp the multi-specification centrifuge tube adapters as described above.

[0019] The beneficial effects of this utility model embodiment are as follows: it enables a single adapter to accommodate centrifuge tubes of three different diameters, overcoming the limitation of existing technologies that can only accommodate centrifuge tubes of two different diameters, thus optimizing the application to accommodate centrifuge tubes of three different diameters. This greatly simplifies laboratory operation procedures and reduces the risk of errors in adapter management and use. In addition, through the "limiting and embedding adaptation" setting, each centrifuge tube can achieve a large-area contact with the inner wall of its corresponding inner diameter cavity when inserted, providing a fundamental guarantee for the stability of the tube during centrifugation, effectively preventing the tube from shaking or shifting during high-speed rotation, and improving centrifugation effect and safety. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the adapter structure for accommodating the first centrifuge tube provided in an embodiment of this utility model.

[0022] Figure 2 A schematic diagram of the adapter structure for accommodating the second centrifuge tube provided in an embodiment of this utility model.

[0023] Figure 3 A schematic diagram of the adapter structure for accommodating a third centrifuge tube provided in an embodiment of this utility model.

[0024] Figure 4 for Figure 1 A schematic diagram of the explosion structure.

[0025] Figure 5 for Figure 2 A schematic diagram of the explosion structure.

[0026] Figure 6 for Figure 3 A schematic diagram of the explosion structure.

[0027] Figure 7 A perspective view of the adapter for accommodating three different sizes of centrifuge tubes, provided for an embodiment of this utility model.

[0028] Explanation of the markings in the image:

[0029] 1. Main adapter cylinder; 11. First mounting cylinder; 111. First inner diameter cavity; 112. First limiting notch; 12. Second mounting cylinder; 121. Second inner diameter cavity; 122. Second limiting notch;

[0030] 2. Secondary adapter cylinder; 21. Third inner diameter cavity; 22. Third limiting notch; 23. Clearance notch;

[0031] 3. First centrifuge tube; 31. First protrusion;

[0032] 4. Second centrifuge tube; 41. Second protrusion;

[0033] 5. Third centrifuge tube; 51. Third protrusion. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0036] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0037] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0038] Please see Figures 1 to 6 This utility model provides a multi-specification centrifuge tube adapter and centrifuge device, including:

[0039] The main adapter cylinder 1 includes an integrally formed first mounting cylinder 11 and second mounting cylinder 12. The first mounting cylinder 11 has a first inner diameter cavity 111, and the second mounting cylinder 12 has a second inner diameter cavity 121.

[0040] The auxiliary adapter cylinder 2 has a third inner diameter cavity 21 inside. The auxiliary adapter cylinder 2 can be installed in the first inner diameter cavity 111 or on the outer wall of the second mounting cylinder 12.

[0041] The inner diameters of the first inner diameter cavity 111, the third inner diameter cavity 21, and the second inner diameter cavity 121 decrease sequentially; the first inner diameter cavity 111 contains the first centrifuge tube 3 for limiting and fitting the adapter, the second inner diameter cavity 121 contains the second centrifuge tube 4 for limiting and fitting the adapter, and the third inner diameter cavity 21 contains the third centrifuge tube 5 for limiting and fitting the adapter.

[0042] In this embodiment, the main adapter cylinder 1 can be designed as a single integral component, including two first mounting cylinders 11 and second mounting cylinders 12 with different inner diameter cavities. The first mounting cylinder 11, second mounting cylinder 12, and auxiliary adapter cylinder 2 are all hollow cylindrical structures. The auxiliary adapter cylinder 2 is independent of the main adapter cylinder 1 and has a third inner diameter cavity 21 inside. The auxiliary adapter cylinder 2 has dual installation methods: it can be selectively installed and embedded within the first inner diameter cavity 111 of the main adapter cylinder 1, or fitted onto the outer wall of the second mounting cylinder 12 of the main adapter cylinder 1. The dimensional relationship of the three inner diameter cavities is clearly defined as follows: the first inner diameter cavity 111 is the largest, the third inner diameter cavity 21 is the second largest, and the second inner diameter cavity 121 is the smallest. It can be understood that when the auxiliary adapter cylinder 2 is inside the first inner diameter cavity 111, the adapter can be applied to the second centrifuge tube 4 and the third centrifuge tube 5; when the auxiliary adapter cylinder 2 is on the outer wall of the second mounting cylinder 12, the adapter can be applied to the first centrifuge tube 3 and the second centrifuge tube 4.

[0043] In this embodiment, the inner diameter of each inner diameter cavity is designed to match the size of the corresponding centrifuge tube, so as to achieve precise "limited insertion" of the corresponding centrifuge tube. That is, the first centrifuge tube 3 is embedded in the first inner diameter cavity 111, the second centrifuge tube 4 is embedded in the second inner diameter cavity 121, and the third centrifuge tube 5 is embedded in the third inner diameter cavity 21.

[0044] The structural design of this embodiment enables a single adapter to accommodate centrifuge tubes of three different diameters, overcoming the limitation of existing technologies that can only accommodate two different diameters. This optimizes the application of centrifuge tubes with three different diameters, greatly simplifying laboratory operation procedures and reducing the risk of adapter management and usage errors. Furthermore, through the "limiting embedding" adapter design, each centrifuge tube can achieve a large-area contact with the inner wall of its corresponding inner diameter cavity when inserted, providing fundamental protection for the stability of the tube during centrifugation. This effectively prevents the tube from shaking or shifting during high-speed rotation, improving centrifugation efficiency and safety.

[0045] In one embodiment, the outer wall of the secondary adapter cylinder 2 can be threaded into the inner wall of the first inner diameter cavity 111, and the inner wall of the secondary adapter cylinder 2 can be threaded onto the outer wall of the second mounting cylinder 12.

[0046] This embodiment specifies how the auxiliary adapter 2 is installed into the first inner diameter cavity 111 or the outer wall of the second mounting cylinder 12. Specifically, it can be installed via a threaded connection, ensuring a secure connection between the auxiliary adapter 2 and the first inner diameter cavity 111 or the outer wall of the second mounting cylinder 12, preventing loosening. Simultaneously, the threaded connection facilitates the disassembly and replacement of the auxiliary adapter 2, providing convenience for subsequent maintenance or upgrades.

[0047] In one embodiment, when the outer wall thread of the auxiliary adapter cylinder 2 is fitted into the inner wall of the first inner diameter cavity 111, the third centrifuge tube 5 can be limited and fitted into the third inner diameter cavity 21, or the second centrifuge tube 4 can be limited and fitted into the second inner diameter cavity 121. When the inner wall thread of the auxiliary adapter cylinder 2 is fitted into the outer wall of the second mounting cylinder 12, the first centrifuge tube 3 can be limited and fitted into the first inner diameter cavity 111, or the second centrifuge tube 4 can be limited and fitted into the second inner diameter cavity 121.

[0048] In this embodiment, the auxiliary adapter cylinder 2 is a newly added component for adapting to the second centrifuge tube 4. When the auxiliary adapter cylinder 2 is embedded in the inner wall of the first inner diameter cavity 111, it is equivalent to replacing the first inner diameter cavity 111 with the second inner diameter cavity 121. At this time, the second inner diameter cavity 121 or the third inner diameter cavity 21 is usable, that is, it is used to adapt to the second centrifuge tube 4 or the third centrifuge tube 5. When the inner wall of the auxiliary adapter cylinder 2 is threaded onto the outer wall of the second mounting cylinder 12, the second inner diameter cavity 121 is essentially idle; at this time, the first inner diameter cavity 111 or the third inner diameter cavity 21 is usable, that is, it is used to adapt to the first centrifuge tube 3 or the third centrifuge tube 5.

[0049] Based on this, by flexibly adjusting the secondary adapter tube 2, the adapter can be compatible with three different specifications of centrifuge tubes, meeting more diverse usage needs.

[0050] In one embodiment, a first limiting notch 112 is provided on the outer edge of the opening of the first mounting cylinder 11; the first limiting notch 112 is used to limit and cooperate with the first protrusion 31 provided on the outer side of the cap of the first centrifuge tube 3 in the outer peripheral direction when the first centrifuge tube 3 is embedded in the first inner diameter cavity 111.

[0051] This embodiment introduces an additional anti-rotation limiting mechanism for the first centrifuge tube 3. Specifically, a first limiting notch 112 is provided on the outer edge of the opening of the first mounting cylinder 11. The function of the first limiting notch 112 is to cooperate with a first protrusion 31 specially provided on the outer side of the cap of the first centrifuge tube 3. When the first centrifuge tube 3 is correctly inserted into the first diameter cavity, the first protrusion 31 on its cap will engage or align with the first limiting notch 112, thereby forming a mechanical constraint in the outer circumferential direction of the first centrifuge tube 3. This effectively prevents the first centrifuge tube 3 from rotating around its own axis during high-speed centrifugal rotation.

[0052] In one embodiment, a second limiting notch 122 is provided on the outer edge of the opening of the second mounting cylinder 12; the second limiting notch 122 is used to limit and cooperate with the second protrusion 41 provided on the outer side of the cap of the second centrifuge tube 4 in the outer peripheral direction when the second centrifuge tube 4 is embedded in the second inner diameter cavity 121.

[0053] This embodiment introduces an additional anti-rotation limiting mechanism for the second centrifuge tube 4. Specifically, a second limiting notch 122 is provided on the outer edge of the opening of the second mounting cylinder 12. The function of the second limiting notch 122 is to cooperate with a second protrusion 41 specially provided on the outer side of the cap of the second centrifuge tube 4. When the second centrifuge tube 4 is correctly inserted into the second diameter cavity, the second protrusion 41 on its cap will engage or align with the second limiting notch 122, thereby forming a mechanical constraint in the outer circumferential direction of the second centrifuge tube 4. This effectively prevents the second centrifuge tube 4 from rotating around its own axis during high-speed centrifugal rotation.

[0054] In one embodiment, a third limiting notch 22 is provided on the outer edge of the opening of the auxiliary adapter tube 2; the third limiting notch 22 is used to limit and cooperate with the third protrusion 51 provided on the outer side of the cap of the third centrifuge tube 5 in the outer circumferential direction when the third centrifuge tube 5 is embedded in the third inner diameter cavity 21.

[0055] This embodiment introduces an additional anti-rotation limiting mechanism for the third centrifuge tube 5. Specifically, a third limiting notch 22 is provided on the outer edge of the opening of the auxiliary adapter cylinder 2. The function of the third limiting notch 22 is to cooperate with a third protrusion 51 specially provided on the outer side of the cap of the third centrifuge tube 5. When the third centrifuge tube 5 is correctly inserted into the third diameter cavity, the third protrusion 51 on its cap will engage or align with the third limiting notch 22, thereby forming a mechanical constraint in the outer circumferential direction of the third centrifuge tube 5. This effectively prevents the third centrifuge tube 5 from rotating around its own axis during high-speed centrifugal rotation.

[0056] In one embodiment, the outer edge of the other opening of the secondary adapter cylinder 2 is also provided with a clearance notch 23; when the inner wall thread of the secondary adapter cylinder 2 is fitted onto the outer wall of the second mounting cylinder 12, the clearance notch 23 corresponds to the position of the second limiting notch 122; when the outer wall thread of the secondary adapter cylinder 2 is screwed into the first inner diameter cavity 111, the third limiting notch 22 corresponds to the position of the first limiting notch 112.

[0057] In this embodiment, to ensure that the threaded fitting of the secondary adapter sleeve 2 does not affect the correct embedding of the second centrifuge tube 4 into the second diameter cavity when it is threaded onto the outer wall of the second mounting sleeve 12, the clearance notch 23 on the secondary adapter sleeve 2 and the second limiting notch 122 on the second mounting sleeve 12 are positioned correspondingly, i.e., the clearance notch 23 and the second limiting notch 122 are at the same circumferential angle. Thus, when the second centrifuge tube 4 is placed in the second diameter cavity, the second protrusion 41 on the cap of the second centrifuge tube 4 can smoothly and unobstructedly engage with the second limiting notch 122. This ensures the integrity and ease of use of the adapter in various assembly configurations.

[0058] Similarly, after the outer wall thread of the auxiliary adapter cylinder 2 is screwed into the first inner diameter cavity 111, the third limiting notch 22 on the auxiliary adapter cylinder 2 and the first limiting notch 112 on the first mounting cylinder 11 correspond to each other in position, that is, the third limiting notch 22 and the first limiting notch 112 are at the same circumferential angle. In this way, when the third centrifuge tube 5 is placed in the third diameter cavity, the third protrusion 51 on the cap of the third centrifuge tube 5 can smoothly and without obstruction engage with the third limiting notch 22. This further ensures that the adapter can stably and accurately fix centrifuge tubes of different sizes under various assembly methods, improving the versatility and practicality of the adapter.

[0059] In summary, combining Figure 7 The above, Figure 7 In the diagram, 'a' is an internal perspective view of the adapter when the first centrifuge tube is being accommodated. Figure 7 In the diagram, 'b' is an internal perspective view of the adapter when the second centrifuge tube is being accommodated. Figure 7 The image 'c' shows the internal perspective view of the adapter when accommodating the third centrifuge tube, demonstrating that a single adapter can accommodate centrifuge tubes of three different diameters. All three tube sizes can fit snugly into their corresponding inner diameter cavities, providing fundamental assurance for tube stability during centrifugation. This effectively prevents the tubes from shaking or shifting during high-speed rotation, improving centrifugation efficiency and safety.

[0060] This utility model embodiment also provides a centrifuge device, wherein: the centrifuge device is provided with a clamping cavity, and the clamping cavity is used to clamp the multi-specification centrifuge tube adapters as described above.

[0061] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A multi-specification centrifuge tube adapter, characterized in that, include: The main adapter tube includes an integrally formed first mounting tube and a second mounting tube, wherein the first mounting tube has a first inner diameter cavity and the second mounting tube has a second inner diameter cavity. The auxiliary adapter cylinder has a third inner diameter cavity inside. The auxiliary adapter cylinder can be installed in the first inner diameter cavity or on the outer wall of the second mounting cylinder. The inner diameters of the first inner diameter cavity, the third inner diameter cavity, and the second inner diameter cavity decrease sequentially; the first inner diameter cavity contains a first centrifuge tube for limiting and fitting the adapter; the second inner diameter cavity contains a second centrifuge tube for limiting and fitting the adapter; and the third inner diameter cavity contains a third centrifuge tube for limiting and fitting the adapter.

2. The multi-specification centrifuge tube adapter according to claim 1, characterized in that, The outer wall of the auxiliary adapter cylinder can be threaded into the inner wall of the first inner diameter cavity.

3. The multi-specification centrifuge tube adapter according to claim 2, characterized in that, The inner wall of the secondary adapter cylinder can be threaded onto the outer wall of the second mounting cylinder.

4. The multi-specification centrifuge tube adapter according to claim 3, characterized in that, When the outer wall thread of the auxiliary adapter cylinder is fitted into the inner wall of the first inner diameter cavity, the third centrifuge tube can be limited and fitted into the third inner diameter cavity, or the second centrifuge tube can be limited and fitted into the second inner diameter cavity.

5. The multi-specification centrifuge tube adapter according to claim 4, characterized in that, When the inner wall thread of the auxiliary adapter cylinder is fitted onto the outer wall of the second mounting cylinder, the first centrifuge tube can be limited and embedded in the first inner diameter cavity, or the second centrifuge tube can be limited and embedded in the second inner diameter cavity.

6. The multi-specification centrifuge tube adapter according to claim 4, characterized in that, The first mounting cylinder has a first limiting notch on the outer edge of its opening; The first limiting notch is used to limit the movement of the first centrifuge tube in the outer circumferential direction when the first centrifuge tube is inserted into the first inner diameter cavity.

7. The multi-specification centrifuge tube adapter according to claim 6, characterized in that, The second mounting cylinder has a second limiting notch on the outer edge of its opening; The second limiting notch is used to limit the movement of the second centrifuge tube in the outer circumferential direction when the second centrifuge tube is embedded in the second inner diameter cavity.

8. The multi-specification centrifuge tube adapter according to claim 7, characterized in that, The auxiliary adapter tube has a third limiting notch on the outer edge of its opening; The third limiting notch is used to limit the movement of the third centrifuge tube in the outer circumferential direction when the third centrifuge tube is embedded in the third inner diameter cavity.

9. The multi-specification centrifuge tube adapter according to claim 8, characterized in that, The outer edge of the other opening of the auxiliary adapter tube is also provided with an avoidance notch; When the inner wall thread of the auxiliary adapter cylinder is fitted onto the outer wall of the second mounting cylinder, the clearance notch corresponds to the position of the second limiting notch; When the outer wall thread of the auxiliary adapter cylinder is screwed into the first inner diameter cavity, the third limiting notch corresponds to the position of the first limiting notch.

10. A centrifuge device, characterized in that, The device is provided with a clamping cavity for clamping the multi-specification centrifuge tube adapter as described in any one of claims 1 to 9.

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