Centrifugal rotors and centrifuges

Abstract

This invention relates to the field of centrifuge manufacturing, specifically providing a centrifuge rotor and centrifuge, aiming to solve the problem of reagent spillage from the rim and lid of a test tube containing reagents if it breaks in an existing centrifuge. To this end, the centrifuge rotor of this invention includes: a rotor support, a hanging cup, a lid, and an adapter. The hanging cup is rotatably connected to the rotor support; the lid covers the rim of the hanging cup, so that the inner wall of the cup body and the inner wall of the lid form a sealed cavity; the outer wall of the adapter is sealed to the inner wall of the cup body, and the adapter includes a receiving groove and a receiving cavity. The receiving groove is located in the middle of the adapter and is used to connect with the outer wall of the reagent tube. The receiving cavity is located inside the main body of the adapter and communicates with the cavity formed between the lid and the rim. The volume of the receiving cavity is larger than the volume of the cavity. Thus, even if the test tube breaks while the centrifuge rotor is rotating, the reagent exceeding the rim can enter the receiving cavity, preventing spillage from the rim.

Description

Technical Field

[0001] This invention relates to the field of centrifuge manufacturing, and specifically provides a centrifuge rotor and a centrifuge. Background Technology

[0002] A centrifuge is a device that uses centrifugal force to separate the components of a liquid from stationary particles or a mixture of liquids. It is widely used in chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment, and shipbuilding industries. The rotor, a crucial component of the centrifuge, drives a container filled with reagents to rotate. This allows the reagents inside the container to separate under the influence of centrifugal force as the rotor rotates.

[0003] However, if a test tube containing reagents breaks under centrifugal force during centrifugal rotation, reagents may splash, causing personal injury. To address this issue, existing centrifuges typically have a lid attached to the rim of the centrifuge cup to prevent splashing. However, even with a lid on the rim of the centrifuge cup, if a test tube containing reagents breaks, there is still a risk of reagents spilling out when the user opens the lid, potentially causing personal injury.

[0004] Accordingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that even if the mouth of the hanging cup of the existing centrifuge is covered with a cup lid, if the test tube containing the reagent breaks, the reagent may still spill out from the mouth of the cup.

[0006] In a first aspect, the present invention provides a centrifugal rotor, the centrifugal rotor comprising:

[0007] A rotor support includes a rotating shaft and multiple connecting arms. The multiple connecting arms are connected to the rotating shaft and are evenly distributed on the outer periphery of the rotating shaft. Two adjacent connecting arms form a connecting part.

[0008] The hanging cup is rotatably connected to the connecting part;

[0009] A lid, which covers the mouth of the hanging cup, so that the inner wall of the cup body and the inner wall of the lid form a sealed cavity; and

[0010] An adapter, the outer wall of which is sealed to the inner wall of the cup body, the adapter includes a receiving groove and a receiving cavity, the receiving groove is located in the middle of the adapter and is used to connect with the outer wall of the reagent tube, the receiving cavity is located inside the body of the adapter and communicates with the cavity formed between the cup lid and the cup mouth, the volume of the receiving cavity is larger than the volume of the cavity.

[0011] In the preferred embodiment of the centrifugal rotor described above, the centrifugal rotor includes a flow guide hole located at the end of the adapter near the cup lid. The flow guide hole includes an inlet and an outlet. The inlet is located on the end face of the adapter near the cup lid, and the outlet is located on the side wall of the receiving cavity near the cup lid, so that the receiving cavity communicates with the cavity through the flow guide hole.

[0012] In the preferred embodiment of the centrifugal rotor described above, the centrifugal rotor further includes:

[0013] A first air vent is provided on the adapter, the first air inlet of the first air vent is provided at the upper end of the side wall of the receiving cavity, and the first air outlet of the first air vent is provided on the outer side wall of the adapter.

[0014] A second air vent is provided on the cup body, and a second air inlet of the second air vent is provided on the inner wall of the cup body. The position of the second air inlet is configured such that it can communicate with the first air outlet after the adapter is in the installation position. The second air outlet of the second air vent is provided on the end face of the cup rim near the cup lid.

[0015] The third air guide hole is provided on the cup lid. The third air inlet of the third air guide hole is provided on the end face of the cup lid near the cup mouth. The position of the third air inlet is configured to communicate with the second air outlet after the cup lid is in the installation position. The third air outlet of the third air guide hole is provided on the top of the inner wall of the cup lid and communicates with the cavity.

[0016] In the preferred embodiment of the centrifugal rotor described above, the centrifugal rotor further includes:

[0017] A first sealing groove is circumferentially disposed on the inner wall of the cup body, and the first sealing groove is located above the first air outlet; and

[0018] A first sealing ring is fixedly connected to the first sealing groove so that the inner wall of the cup body is sealed to the outer wall of the adapter through the first sealing ring.

[0019] In the preferred embodiment of the centrifugal rotor described above, the centrifugal rotor further includes:

[0020] A first limiting surface is provided on the inner wall of the cup body; and

[0021] The second limiting surface is provided on the outer wall of the adapter. The second limiting surface is provided in relation to the first limiting surface so that when the adapter is inserted into the cup body, the second limiting surface can fit against the first limiting surface to prevent the adapter from rotating relative to the cup body.

[0022] In the preferred embodiment of the centrifugal rotor described above, the connecting part includes a plurality of rotor pins, which are respectively disposed at the ends of the plurality of connecting arms away from the rotating shaft, for connecting with the outer wall of the cup.

[0023] In the preferred embodiment of the centrifugal rotor described above, the outer wall of the cup is provided with sliding grooves on both sides, and the sliding grooves are configured to be connected to the rotor hanging pins.

[0024] In the preferred embodiment of the centrifugal rotor described above, the centrifugal rotor further includes:

[0025] A first double-helix structure is located at the outer edge of the cup rim; and

[0026] The second double helix structure is located on the inner edge of the cup lid. The first double helix structure is configured to be screwed tightly with the second double helix structure. The positions of the first double helix structure and the second double helix structure are configured such that after the cup lid is installed in place, the first double helix structure can apply a force toward the cup body to the second double helix structure so that the cup lid and the cup body are sealed together.

[0027] In the preferred embodiment of the centrifugal rotor described above, the centrifugal rotor further includes:

[0028] A second sealing groove is provided on the end face of the cup lid near the cup opening. The second sealing groove is annular and located around the third air inlet.

[0029] The second sealing ring is disposed in the second sealing groove so that after the cup lid is installed in place, the cup lid is sealed to the cup body through the second sealing ring.

[0030] In a second aspect, the present invention also provides a centrifuge comprising the centrifugal rotor described above.

[0031] With the above technical solution, the present invention provides an adapter inside the hanging cup. The groove on the outer wall of the adapter can form a receiving cavity with the inner wall of the cup body. The volume of the receiving cavity is larger than the volume of the cavity formed between the cup lid and the cup mouth. In this way, even if the test tube breaks when the centrifuge rotor rotates, the reagent above the cup mouth can enter the receiving cavity. This allows the reagent to flow to the bottom of the cup mouth, so that the reagent will not overflow from the cup mouth when the user opens the cup lid, thus ensuring the user's personal safety. Attached Figure Description

[0032] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0033] Figure 1 This is an exploded schematic diagram of a centrifugal rotor according to an embodiment of the present invention;

[0034] Figure 2 This is a top view of a centrifugal rotor according to an embodiment of the present invention;

[0035] Figure 3 It is along Figure 2 A schematic diagram of the cross section along line AA in the middle;

[0036] Figure 4 yes Figure 3 A magnified view of a portion of region C in the middle;

[0037] Figure 5 It is along Figure 2 A schematic diagram of the partial cut of the BB line;

[0038] Figure 6 yes Figure 5 A magnified view of a portion of region D.

[0039] List of reference numerals in the attached diagram:

[0040] 100. Centrifugal rotor; 1. Rotor support; 11. Connecting arm; 2. Hanging cup; 21. Second air guide hole; 211. Second air outlet; 212. Second air inlet; 22. First sealing groove; 23. First limiting surface; 24. Sliding groove; 25. First double helix structure; 3. Cup lid; 31. Second double helix structure; 32. Third air guide hole; 321. Third air inlet; 322. Third air outlet; 33. Second sealing groove; 4. Adapter; 41. Flow guide hole; 411. Liquid outlet; 412. Liquid inlet; 42. First air guide hole; 421. First air inlet; 422. First air outlet; 43. Second limiting surface; 44. Receiving cavity; 45. Receiving groove; 5. First sealing ring; 6. Rotor hanging pin; 7. Test tube; 8. Second sealing ring; 9. Rotating shaft. Detailed Implementation

[0041] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0042] It should be noted that in the description of this invention, terms such as "inner" and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation of this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] Figure 1 This is an exploded schematic diagram of a centrifugal rotor according to an embodiment of the present invention. Figure 2 This is a top view of a centrifugal rotor according to an embodiment of the present invention. Figure 3 It is along Figure 2 A schematic diagram of the cross section along line AA. Figure 4 yes Figure 3 A magnified view of a portion of region C. Figure 5 It is along Figure 2 A schematic diagram of the partial cut of the BB line. Figure 6 yes Figure 5 A magnified view of a portion of region D.

[0045] To address the issue that even with a lid, existing centrifuge cups still pose a risk of reagent spillage if a test tube containing reagents breaks.

[0046] like Figure 1 As shown, see also Figures 2 to 6This invention provides a centrifuge rotor 100, which includes a rotor support 1, a hanging cup 2, a cup lid 3, and an adapter 4. The rotor support 1 includes a rotating shaft 9 and multiple connecting arms 11. The multiple connecting arms 11 are connected to the rotating shaft 9, and multiple connecting walls are evenly distributed on the outer periphery of the rotating shaft 9, with adjacent connecting arms 11 forming a connecting portion. The hanging cup 2 is rotatably connected to the connecting portion. The cup lid 3 covers the mouth of the hanging cup 2, so that the inner wall of the cup body of the hanging cup 2 and the inner wall of the cup lid 3 form a sealed cavity, allowing the test tube 7 to be sealed within the sealed cavity. The outer wall of the adapter 4 is sealed to the inner wall of the cup body, preventing reagents from flowing between the outer wall of the adapter 4 and the inner wall of the cup body when the adapter 4 is assembled in the cup body. The adapter 4 includes a receiving groove 45 and a receiving cavity 44. The receiving groove 45 is located in the middle of the adapter 4 and is used to connect with the outer wall of the reagent tube. The receiving cavity 44 is located inside the main body of the adapter 4 and communicates with the cavity formed between the lid 3 and the mouth of the cup. The volume of the receiving cavity 44 is larger than the volume of the cavity formed between the lid 3 and the mouth of the cup. In this way, even if the test tube 7 filled with reagent breaks during centrifugation, the reagent in the test tube 7 that is higher than the cup body can all enter the receiving cavity 44 because the volume of the receiving cavity 44 is larger than the volume of the cavity formed between the inner wall of the lid 3 and the mouth of the cup. This reduces the risk of reagent leakage caused by the test tube 7 breaking when the user opens the lid 3, thus ensuring the user's personal safety.

[0047] like Figure 5 As shown, see also Figure 6 In one possible implementation, the centrifugal rotor 100 includes a flow guide hole 41, which is located at the end of the adapter 4 near the cup lid 3. Specifically, the flow guide hole 41 includes an inlet 412 and an outlet 411. The inlet 412 is located on the end face of the adapter 4 near the cup lid 3, and the outlet 411 is located on the side wall of the receiving cavity 44 near the cup lid 3, so that the receiving cavity 44 communicates with the cavity formed between the cup lid 3 and the cup opening through the flow guide hole 41.

[0048] It should be noted that, although the above combination Figure 5 and Figure 6 The described receiving cavity 44 is directly connected to the cavity through the flow guide hole 41, but this is not limiting. In the specific implementation of the present invention, the flow guide hole 41 can also be set to be connected to the receiving groove 45 in the adapter 4, so that when the test tube 7 breaks, the reagent in the test tube 7 can also enter the receiving cavity 44 formed by the groove and the inner wall of the cup body through the receiving groove 45.

[0049] like Figure 3 As shown, see also Figure 4In one possible implementation, the centrifugal rotor 100 further includes a first air guide hole 42, a second air guide hole 21, and a third air guide hole 32. The first air inlet 421 of the first air guide hole 42 is located at the upper end of the side wall of the receiving cavity 44, and the first air outlet 422 of the first air guide hole 42 is located on the outer side wall of the adapter 4. The second air guide hole 21 is located on the cup body, and the second air inlet 212 of the second air guide hole 21 is located on the inner wall of the cup body. The position of the second air inlet 212 is configured such that it can communicate with the first air outlet 422 after the adapter 4 is in the installation position. The second air outlet 211 of the second air guide hole 21 is located on the end face of the cup mouth near the cup lid 3. The third vent 32 is located on the cup lid 3, and the third air inlet 321 of the third vent 32 is located on the end face of the cup lid 3 near the cup opening. The position of the third air inlet 321 is configured such that it can communicate with the second air outlet 211 after the cup lid 3 is in the installed position. The third air outlet 322 of the third vent 32 is located on the top of the inner wall of the cup lid 3 and communicates with the cavity. With the above arrangement, after the cup lid 3 is installed in place, the second vent 21 and the third vent 32 are connected, so that the receiving cavity 44 can be vented through the third vent 32. The second air vent 21 and the third air vent 32 are connected to the cavity via the third air outlet 322. Since the third air outlet 322 is located on the inner wall of the top of the lid 3, even if the reagent blocks the opening of the receiving cavity 44 after the test tube 7 breaks, the air inside the receiving cavity 44 can still flow out through the third air outlet 322. This allows the reagent inside the cavity to smoothly enter the receiving cavity 44 under the action of gravity, further reducing the risk of the reagent overflowing from the mouth of the cup when the user opens the lid 3.

[0050] Please continue to see section 3 and... Figure 4 In a specific implementation of the present invention, the end face of the adapter 4 near the cup lid 3 is flush with the end face of the cup mouth near the cup lid 3, so that when the cup lid 3 is placed on the cup body, the end face of the cup lid 3 near the cup mouth can be sealed and connected with the end face of the adapter 4 near the cup lid 3. Through the above arrangement, the number of steps on the end face of the cup lid 3 near the cup body can be reduced, the processing difficulty of the cup lid can be reduced, and the second air guide hole 21 can be more easily sealed and connected with the third air guide hole 32, so that the air in the receiving cavity 44 can smoothly enter the third air guide hole 32 through the second air guide hole 21, thereby further ensuring the safety of the centrifugal rotor 100.

[0051] It should be noted that, although the above combination Figure 3 and Figure 4The adapter 4 described is flush with the end face of the cup lid 3 near the cup opening. However, this is not limiting. In other embodiments of the invention, the end face of the adapter 4 near the cup lid 3 may be lower than the end face of the cup opening near the cup lid 3. With this arrangement, after the test tube 7 breaks, the reagent can more easily enter the receiving cavity 44 through the guide hole 41. However, this is also not limiting. In other embodiments of the invention, the end face of the adapter 4 near the cup lid 3 may also be higher than the end face of the cup opening near the cup lid 3. In this case, the radial dimension of the inner wall of the cup lid 3 needs to be larger than the radial dimension of the adapter 4. In this case, the liquid inlet 412 of the guide hole 41 is located on the outer wall of the adapter 4, and the lower edge of the liquid inlet 412 is flush with the end face of the cup opening near the cup lid 3, so that the reagent in the cavity can flow more easily into the receiving cavity 44. However, regardless of how the positional relationship between the end face of the adapter 4 near the cup lid and the end face of the cup mouth near the cup lid 3 changes, as long as the second air guide hole 21 and the third air guide hole 32 can be sealed and connected in the specific implementation of the present invention.

[0052] like Figure 5 As shown, see also Figure 6 As one possible implementation, the number of guide holes 41 can also be multiple, and the multiple guide holes 41 are evenly distributed circumferentially on the end face of the adapter 4 near the cup lid 3. It should be noted that, although the above combination Figure 2 , Figure 3 and Figure 4 The liquid inlets 412 of the multiple guide holes 41 described are circumferentially and evenly distributed on the end face of the adapter 4 near the cup lid 3. However, this is not limiting. In specific implementations of the present invention, the multiple liquid inlets 412 may not be circumferentially and evenly distributed on the end face of the adapter 4 near the cup lid 3, as long as the multiple liquid inlets 412 can be set at the lowest point of the contact position between the adapter 4 and the inner wall of the cup body.

[0053] like Figure 3 As shown, see also Figures 4-6In one possible implementation, the centrifugal rotor 100 further includes a first sealing groove 22 and a first sealing ring 5. The first sealing groove 22 is circumferentially disposed on the inner wall of the cup body, and the position of the first sealing groove 22 is located above the first air outlet 422. The first sealing ring 5 is fixedly connected to the first sealing groove 22, so that the inner wall of the cup body is sealed to the outer wall of the adapter 4 through the first sealing ring 5, thereby further reducing the risk of reagent flowing into the space between the outer wall of the adapter 4 and the inner wall of the cup body, and reducing the risk of reagent residue remaining on the outer wall of the adapter 4 when the user removes the adapter 4, thus further improving the safety performance of the centrifugal rotor 100. In addition, since the first sealing ring 5 is provided between the outer wall of the adapter 4 and the inner wall of the cup body to enhance the sealing between the two, the risk of the first air outlet 422 becoming blocked due to reagent flowing into it can be reduced, thereby further ensuring that the reagent flows smoothly into the receiving cavity 44.

[0054] like Figure 3 As shown, see also Figure 4 In one possible implementation, the centrifugal rotor 100 further includes a first limiting surface 23 and a second limiting surface 43. The first limiting surface 23 is disposed on the inner wall of the cup body. The second limiting surface 43 is disposed on the outer wall of the adapter 4. The second limiting surface 43 is disposed corresponding to the first limiting surface 23 so that when the adapter 4 is inserted into the interior of the cup body, the second limiting surface 43 can fit against the first limiting surface 23 to prevent the adapter 4 from rotating relative to the cup body, so that the second air inlet 212 can be stably connected to the first air outlet 422, thereby ensuring that the reagent can flow smoothly into the receiving cavity 44.

[0055] It should be noted that, although the above combination Figure 3 and Figure 4 The adapter 4 and the cup body are positioned by the first limiting surface 23 and the second limiting surface 43. However, this is not limiting. Those skilled in the art can also provide a first retaining rib on the outer side wall of the adapter 4 and a second retaining rib on the inner side wall of the cup body as needed. The positions of the first retaining rib and the second retaining rib are configured such that after the adapter 4 is assembled in place, the first retaining rib and the second retaining rib cooperate to connect and prevent the adapter 4 from rotating relative to the cup body. This allows the second air guide hole 21 to communicate with the first air guide hole 42 after the adapter 4 is installed in place, thereby ensuring the safety performance of the centrifugal rotor 100.

[0056] like Figure 1 As shown, see also Figure 2 and Figure 3The connecting part includes multiple rotor pins 6, which are respectively located at the ends of multiple connecting arms 11 away from the rotating shaft 9. They are used to connect with the outer wall of the hanging cup 2 so that after the hanging cup 2 is connected with the multiple rotors, the hanging cup 2 can rotate relative to the rotor support 1, thereby allowing the hanging cup 2 to rotate from a vertical state to a horizontal state when the rotor support 1 rotates.

[0057] like Figure 1 As shown, see also Figure 3 The outer walls of the hanging cup 2 are provided with sliding grooves 24 on both sides. The position of the sliding grooves 24 is configured to correspond to the rotor hanging pin 6 so that the hanging cup 2 can be detachably connected to the rotor bracket 1. This allows the rotor bracket 1 to be adapted to hanging cups 2 of different sizes, and thus allows the rotor bracket 1 to adapt to test tubes 7 of different sizes, thereby improving the versatility of the rotor bracket 1 and reducing the cost of using the rotor bracket 1.

[0058] like Figure 1 As shown, see also Figures 3-6 The centrifugal rotor 100 also includes a first double helix structure 25 and a second double helix structure 31. The first double helix structure 25 is located on the outer edge of the cup opening. The second double helix structure 31 is located on the inner edge of the cup lid 3. The positions of the first double helix structure 25 and the second double helix structure 31 are configured such that after the cup lid 3 is installed in place, the first double helix structure 25 can apply a force toward the cup body to the second double helix structure 31, so that the cup lid 3 can be sealed to the cup body. Specifically, a retaining step is provided on the inner edge of the cup lid 3, so that after the first double helix structure 25 and the second double helix structure are tightened together, the retaining surface of the retaining step can abut against the end face of the hanging cup 2 near the cup lid 3. In this way, after the first double helix structure 25 and the second double helix structure are tightened together, the cup lid 3 and the cup body can fit tightly together, thereby forming a sealed cavity between the inner wall of the cup lid 3 and the inner wall of the hanging cup 2. More specifically, the anti-reverse surface is positioned such that after the cup body and cup lid 3 form a sealed cavity, i.e., after the first double helix structure 25 and the second double helix structure 31 have rotated into place, the air outlet of the second air guide hole 21 is aligned with the air inlet of the third air guide hole 32. It should be noted that, in a specific implementation of the present invention, a first marking line can be provided on the outer wall of the cup body of the hanging cup 2, and a second marking line can be provided on the outer wall of the cup lid 3. The positions of the first marking line and the second marking line are configured such that after the inner wall of the cup lid 3 and the inner wall of the hanging cup 2 form a sealed cavity, the first marking line and the second marking line can be aligned, and the first air outlet and the second air inlet can be aligned. At this time, it is no longer necessary to tighten the cup lid 3.

[0059] Preferably, in a specific implementation of the present invention, the first double helix structure 25 and the second double helix structure 31 are configured such that the cup lid 3 can be screwed tightly onto the cup body of the hanging book 2 by rotating it only 120 degrees, so that the user can quickly disassemble and assemble the cup lid 3, thereby improving the user's satisfaction.

[0060] like Figure 3 As shown, see also Figures 4-6 In one possible embodiment of the present invention, the centrifugal rotor 100 further includes a second sealing groove 33 and a second sealing ring 8. The second sealing groove 33 is located on the end face of the cup lid 3 near the cup opening. The second sealing groove 33 is annular and located around the second air inlet. The second sealing ring 8 is located in the second sealing groove 33 so that after the cup lid 3 is installed in place, the anti-reverse surface on the cup lid 3 is sealed to the end face of the cup opening near the cup lid 3, thereby sealing the cup lid 3 to the cup body through the second sealing ring 8. Furthermore, since the second sealing groove 33 is located around the first air outlet and the second air inlet, the first air outlet and the second air inlet will not affect the sealing performance of the sealing cavity, thus ensuring the safety of the centrifugal rotor 100. More specifically, in the specific implementation of the present invention, the second sealing groove 33 is coaxially arranged with the cup lid 3 and the cup mouth. In this way, when the cup lid 3 is rotated, the second sealing groove 33 will drive the second sealing ring 8 to rotate in the axial direction relative to the end face of the cup body near the cup lid 3. This prevents the second sealing ring 8 from moving in the radial direction relative to the end face of the cup body near the cup lid 3 when the cup lid 3 is rotated. This reduces the risk that the second sealing ring 8 will disengage from the second sealing groove 33 due to friction when the cup lid 3 is rotated, thereby further ensuring the safety of the centrifugal rotor 100.

[0061] As one possible implementation, this embodiment also provides a centrifuge (not shown), which includes a drive motor (not shown), the output shaft (not shown) of the drive motor being connected to the rotating shaft 9 of the rotor support 1 to drive the centrifugal rotor 100 to rotate.

[0062] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A centrifugal rotor, characterized by The centrifugal rotor comprises: a rotor support comprising a rotating shaft and a plurality of connecting arms connected to the rotating shaft and evenly distributed around the periphery of the rotating shaft, and two adjacent connecting arms forming a connecting portion; a hanging cup rotatably connected to the connecting portion; a cup cover covering the cup opening of the hanging cup so that the inner wall of the cup body of the hanging cup and the inner wall of the cup cover form a sealed cavity; and an adapter with an outer wall sealingly connected to the inner wall of the cup body, the adapter comprising a receiving groove arranged in the middle of the adapter for mating connection with the outer wall of the test tube, and a receiving cavity arranged in the interior of the main body of the adapter and communicating with the cavity formed between the cup cover and the cup opening, the volume of the receiving cavity being greater than that of the cavity, so that the reagent in the test tube that protrudes above the cup body of the hanging cup can enter the receiving cavity. The centrifugal rotor further comprises:

2. Centrifugal rotor according to claim 1, characterized in that a first air guide hole arranged in the adapter, a first air inlet of the first air guide hole being arranged on the end face of the adapter close to the cup cover, and a first air outlet of the first air guide hole being arranged on the outer side wall of the adapter; a second air guide hole arranged in the cup body, a second air inlet of the second air guide hole being arranged on the inner wall of the cup body, the position of the second air inlet being configured to be able to communicate with the first air outlet after the adapter is in the installed position, and a second air outlet of the second air guide hole being arranged on the end face of the cup opening close to the cup cover; and a third air guide hole arranged in the cup cover, a third air inlet of the third air guide hole being arranged on the end face of the cup cover close to the cup opening, the position of the third air inlet being configured to be able to communicate with the second air outlet after the cup cover is in the installed position, and a third air outlet of the third air guide hole being arranged on the top of the inner wall of the cup cover and communicating with the cavity. The centrifugal rotor further comprises:

3. Centrifugal rotor according to claim 2, characterized in that a first sealing groove circumferentially arranged on the inner wall of the cup body, the position of the first sealing groove being above the first air outlet; and a first sealing ring fixedly connected to the first sealing groove so that the inner wall of the cup body is sealingly connected to the outer wall of the adapter through the first sealing ring. The centrifugal rotor further comprises:

4. The centrifugal rotor of claim 1, wherein a first limiting surface arranged on the inner wall of the cup body; and a second limiting surface arranged on the outer wall of the adapter, the second limiting surface being arranged corresponding to the first limiting surface so that when the adapter is inserted into the interior of the cup body, the second limiting surface can abut against the first limiting surface to prevent the adapter from rotating relative to the cup body. The connecting portion comprises a plurality of rotor hanging pins arranged on the end portions of the plurality of connecting arms away from the rotating shaft for mating connection with the outer wall of the hanging cup.

5. The centrifugal rotor of claim 1, wherein ​ 6. Centrifugal rotor according to claim 5, characterized in that The outer wall of the cup is provided with a sliding groove on both sides, which is configured to be connected with the rotor hanging pin.

7. The centrifugal rotor of claim 1, wherein The centrifugal rotor further comprises: a first double helix structure provided on the outer edge of the cup mouth; and a second double helix structure provided on the inner edge of the cup cover, the first double helix structure is configured to be screwed with the second double helix structure, and the positions of the first double helix structure and the second double helix structure are configured to apply a force to the second double helix structure towards the cup body after the cup cover is installed in place, so that the cup cover is sealed and connected with the cup body.

8. The centrifugal rotor according to claim 2, characterized in that The centrifugal rotor further comprises: a second sealing groove provided on the end face of the cup cover close to the cup mouth, the second sealing groove is a circular ring, and the second sealing groove is located on the periphery of the third air inlet; and a second sealing ring provided in the second sealing groove, so that the cup cover is sealed and connected with the cup body through the second sealing ring after the cup cover is installed in place.

9. A centrifuge characterized by, The centrifuge comprises the centrifugal rotor according to any one of claims 1-8.

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