Centrifugal rotor and centrifugal machine

Abstract

The invention relates to the field of centrifugal machine manufacturing, in particular to a centrifugal rotor and a centrifugal machine, and aims to solve the problem that if a test tube filled with a reagent in an existing centrifugal machine is broken, the reagent has the risk of overflowing from a cup opening and a cup cover. In order to achieve the purpose, the centrifugal rotor comprises a rotor support, a hanging cup, a cup cover and an adapter, and the hanging cup is rotationally connected with the rotor support; the cup cover covers 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; the outer wall of the adapter is in sealed connection with the inner wall of the cup body, the adapter comprises a containing groove and a containing cavity, the containing groove is formed in the middle of the adapter and used for being connected with the outer wall of the reagent tube in a matched mode, the containing cavity is formed in a main body of the adapter and communicated with a cavity formed between the cup cover and the cup opening, and the size of the containing cavity is larger than that of the cavity. Therefore, even if the test tube is broken when the centrifugal rotor rotates, the reagent higher than the cup opening can enter the accommodating cavity, so that the reagent cannot overflow from the cup opening.

Description

Technical Field

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

[0002] Centrifuge is a device that uses centrifugal force to separate liquid from fixed particles or components in a mixture of liquid. It is widely used in chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and shipbuilding industries. The rotor is an important part of the centrifuge and is used to drive the hanging cup containing reagents to rotate. When the centrifuge drives the rotor to rotate, the reagents inside the hanging cup can be separated under the action of centrifugal force.

[0003] However, during the rotation of the rotor, if the test tube containing the reagent breaks under the action of centrifugal force, the reagent will splash, causing personal injury. In order to solve the above problem, the existing centrifuge is usually connected to a cover at the mouth of the hanging cup to prevent the reagent from splashing. But even if the cup mouth of the hanging cup of the existing centrifuge is covered with a cup cover, if the test tube containing the reagent breaks, when the user opens the cup cover, the reagent will still have the risk of overflowing from the cup mouth, which will cause personal injury.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem that even if a cup cover is provided at the cup mouth of the existing centrifuge, if a test tube containing reagents is broken, there is still a risk of the reagents overflowing from the cup mouth.

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

[0007] A rotor support, the rotor support comprising a rotating shaft and a plurality of connecting arms, wherein the plurality of connecting arms are connected to the rotating shaft and are evenly distributed on the outer circumference of the rotating shaft, and two adjacent connecting arms form a connecting portion;

[0008] A hanging cup, which is rotatably connected to the connecting portion;

[0009] A cup cover, which is arranged on the cup mouth 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

[0010] An adapter, whose outer wall is sealedly connected to the inner wall of the cup body, and the adapter includes a receiving groove and a receiving cavity. The receiving groove is arranged in the middle of the adapter and is used to cooperate with the outer wall of the reagent tube. The receiving cavity is arranged inside the main body of the adapter and is connected to the cavity formed between the cup cover and the cup mouth. The volume of the receiving cavity is constructed to be larger than the volume of the cavity.

[0011] In the preferred technical solution of the above-mentioned centrifugal rotor, the centrifugal rotor includes a guide hole, which is arranged at the end of the adapter close to the cup cover, and the guide hole includes a liquid inlet and a liquid outlet, the liquid inlet is arranged at the end surface of the adapter close to the cup cover, and the liquid outlet is arranged on the side wall of the accommodating chamber close to the cup cover, so that the accommodating chamber is connected with the cavity through the guide hole.

[0012] In the preferred technical solution of the above centrifugal rotor, the centrifugal rotor further comprises:

[0013] A first air guide hole, which is provided on the adapter, wherein a first air inlet of the first air guide hole is provided on an upper end of a side wall of the accommodating cavity, and a first air outlet of the first air guide hole is provided on an outer side wall of the adapter;

[0014] a second air guide hole, which is provided in the cup body, a second air inlet of the second air guide hole is provided on the inner wall of the cup body, the position of the second air inlet is configured to be able to communicate with the first air outlet after the adapter is located in the installation position, and the second air outlet of the second air guide hole is provided on the end surface of the cup mouth close to the cup cover; and

[0015] A third air guide hole is provided on the cup cover, and a third air inlet of the third air guide hole is provided on the end surface of the cup cover close to the cup mouth, and the position of the third air inlet is configured to be able to communicate with the second air outlet after the cup cover is in the installation position, and the third air outlet of the third air guide hole is provided at the top of the inner wall of the cup cover and is connected with the cavity.

[0016] In the preferred technical solution of the above centrifugal rotor, the centrifugal rotor further comprises:

[0017] A first sealing groove, which is circumferentially arranged on the inner wall of the cup body, and the position of 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 and connected to the outer wall of the adapter through the first sealing ring.

[0019] In the preferred technical solution of the above centrifugal rotor, the centrifugal rotor further comprises:

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

[0021] A second limiting surface is arranged on the outer wall of the adapter, and the second limiting surface is arranged corresponding to the first limiting surface, so that when the adapter is inserted into the cup body, the second limiting surface can fit with the first limiting surface to prevent the adapter from rotating relative to the cup body.

[0022] In the preferred technical solution of the above centrifugal rotor, the connecting portion includes a plurality of rotor hanging pins, and the plurality of rotor hanging pins are correspondingly arranged at the ends of the plurality of connecting arms away from the rotating shaft for cooperative connection with the outer wall of the hanging cup.

[0023] In the preferred technical solution of the above centrifugal rotor, slide grooves are provided on both sides of the outer wall of the hanging cup, and the slide grooves are configured to be correspondingly connected to the rotor hanging pins.

[0024] In the preferred technical solution of the above centrifugal rotor, the centrifugal rotor further comprises:

[0025] A first double helix structure is provided on the outer edge of the cup mouth; and

[0026] The second double helix structure is arranged on the inner edge of the cup cover, the first double helix structure is configured to be screwed together with the second double helix structure, and the positions of the first double helix structure and the second double helix structure are configured so that after the cup cover 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 cover is sealed and connected to the cup body.

[0027] In the preferred technical solution of the above centrifugal rotor, the centrifugal rotor further comprises:

[0028] A second sealing groove, which is provided on the end surface of the cup cover close to the cup mouth, the second sealing groove is annular, and the second sealing groove is located at the periphery of the third air inlet; and

[0029] The second sealing ring is arranged in the second sealing groove, so that after the cup cover is installed in place, the cup cover is sealed and connected to the cup body through the second sealing ring.

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

[0031] When adopting the above technical solution, the present invention provides an adapter inside the hanging cup, and the groove on the outer wall of the adapter can form a accommodating cavity with the inner wall of the cup body of the hanging cup, and the volume of the accommodating cavity is larger than the volume of the cavity formed between the cup cover and the cup mouth. In this way, even if the test tube breaks when the centrifuge rotor rotates, the reagent protruding from the cup mouth can enter the accommodating cavity, so that the reagent flows to the bottom of the cup mouth of the hanging cup, so that when the user opens the cup cover, the reagent will not overflow from the cup mouth, thereby ensuring the personal safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0035] Figure 3 is along Figure 2 Schematic diagram of the section along the AA line;

[0036] Figure 4 yes Figure 3 A partial enlarged view of the middle C area;

[0037] Figure 5 is along Figure 2 Schematic diagram of the partial cut of the mid-BB line;

[0038] Figure 6 yes Figure 5 A partial enlarged view of the D area in the middle.

[0039] List of reference numerals:

[0040] 100. Centrifugal rotor; 1. Rotor bracket; 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. Slide groove; 25. First double helix structure; 3. Cup cover; 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. Accommodating chamber; 45. Accommodating groove; 5. First sealing ring; 6. Rotor hanging pin; 7. Test tube; 8. Second sealing ring; 9. Rotating shaft. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0042] It should be noted that, in the description of the present invention, the terms "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are merely for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Figure 1 It is an exploded schematic diagram of a centrifugal rotor according to an embodiment of the present invention. Figure 2 1 is a top view of a centrifugal rotor according to an embodiment of the present invention. Figure 3 is along Figure 2 Schematic diagram of the section along line AA. Figure 4 yes Figure 3 A partial enlarged view of the middle C area. Figure 5 is along Figure 2 Schematic diagram of a partial cut along the midline BB. Figure 6 yes Figure 5 A partial enlarged view of the D area in the middle.

[0045] In order to solve the problem that even if a cup cover is provided at the cup mouth of the existing centrifuge hanging cup, if the test tube containing the reagent is broken, the reagent may still overflow from the cup mouth.

[0046] like Figure 1 See also Figures 2 to 6The present invention provides a centrifugal rotor 100, which includes a rotor support 1, a hanging cup 2, a cup cover 3 and an adapter 4. The rotor support 1 includes a rotating shaft 9 and a plurality of connecting arms 11, wherein the plurality of connecting arms 11 are connected to the rotating shaft 9, a plurality of connecting walls are evenly distributed on the outer periphery of the rotating shaft 9, and two adjacent connecting arms 11 form a connecting portion. The hanging cup 2 is rotatably connected to the connecting portion. The cup cover 3 is arranged on the cup 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 cover 3 form a sealed cavity, so that the test tube 7 can be sealed in the sealed cavity. The outer wall of the adapter 4 is sealedly connected to the inner wall of the cup body, so that when the adapter 4 is assembled in the cup body, the reagent cannot flow into between the outer wall of the adapter 4 and the inner wall of the cup body. The adapter 4 includes a accommodating groove 45 and an accommodating cavity 44. The accommodating groove 45 is arranged in the middle of the adapter 4, and is used to cooperate with the outer wall of the reagent tube. The accommodating cavity 44 is arranged inside the main body of the adapter 4 and is connected with the cavity formed between the cup cover 3 and the cup mouth, and the volume of the accommodating cavity 44 is larger than the volume of the cavity formed between the cup cover 3 and the cup mouth. In this way, even if the test tube 7 filled with reagents ruptures during centrifugation, since the volume of the accommodating cavity 44 is larger than the volume of the cavity formed between the inner wall of the cup cover 3 and the cup mouth, the reagent in the test tube 7 that protrudes above the cup body can all enter the accommodating cavity 44, thereby reducing the risk of reagent flowing out due to the rupture of the test tube 7 when the user opens the cup cover 3, so as to ensure the personal safety of the user.

[0047] like Figure 5 See also Figure 6 As a possible implementation, the centrifugal rotor 100 includes a flow guide hole 41, which is provided at the end of the adapter 4 close to the cup cover 3. Specifically, the flow guide hole 41 includes a liquid inlet 412 and a liquid outlet 411, the liquid inlet 412 is provided at the end surface of the adapter 4 close to the cup cover 3, and the liquid outlet 411 is provided at the side wall of the accommodating chamber 44 close to the cup cover 3, so that the accommodating chamber 44 is connected with the cavity formed between the cup cover 3 and the cup mouth through the flow guide hole 41.

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

[0049] like Figure 3 See also Figure 4As a 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 arranged at the upper end of the side wall of the accommodating cavity 44, and the first air outlet 422 of the first air guide hole 42 is arranged at the outer side wall of the adapter 4. The second air guide hole 21 is arranged at the cup body, and the second air inlet 212 of the second air guide hole 21 is arranged at the inner wall of the cup body. The position of the second air inlet 212 is configured to be able to communicate with the first air outlet 422 after the adapter 4 is located at the installation position, and the second air outlet 211 of the second air guide hole 21 is arranged at the end surface of the cup mouth close to the cup cover 3. The third air guide hole 32 is provided on the cup cover 3, and the third air inlet 321 of the third air guide hole 32 is provided on the end surface of the cup cover 3 close to the cup mouth. The position of the third air inlet 321 is configured to be able to communicate with the second air outlet 211 after the cup cover 3 is in the installation position. The third air outlet 322 of the third air guide hole 32 is provided at the top of the inner wall of the cup cover 3 and communicates with the cavity. Through the above-mentioned setting, after the cup cover 3 is installed in place, the second air guide hole 21 is communicated with the third air guide hole 32, so that the accommodating cavity 44 passes through The second air guide hole 21 and the third air guide hole 32 are connected to the cavity through the third air outlet 322, and because the third air outlet 322 is located on the inner wall of the top of the cup cover 3, after the test tube 7 is broken, even if the reagent blocks the opening of the accommodating cavity 44, the air inside the accommodating cavity 44 can flow out through the third air outlet 322, so that the reagent located inside the cavity can smoothly enter the accommodating cavity 44 under the action of gravity, further reducing the risk of the reagent overflowing from the cup mouth when the user opens the cup cover 3.

[0050] Please continue to refer to 3 and Figure 4 In the specific implementation of the present invention, the end face of the adapter 4 close to the cup cover 3 is flush with the end face of the cup mouth close to the cup cover 3, so that when the cup cover 3 is covered on the cup body 2, the end face of the cup cover 3 close to the cup mouth can be sealed and connected with the end face of the adapter 4 close to the cup cover 3. Through the above-mentioned setting method, the number of steps on the end face of the cup cover 3 close to the cup body 2 can be reduced, the processing difficulty of the cup cover is 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 accommodating cavity 44 can smoothly enter the third air guide hole 32 from the second air guide hole 21, so as to further ensure the safety of the centrifugal rotor 100.

[0051] It should be noted that although the above combination Figure 3 and Figure 4The end face of the adapter 4 close to the cup cover 3 is described to be flush with the end face of the cup mouth close to the cup cover 3, but this is not restrictive. In other embodiments of the present invention, the end face of the adapter 4 close to the cup cover 3 may be lower than the end face of the cup mouth close to the cup cover 3. By such a configuration, after the test tube 7 is broken, the reagent can more easily enter the accommodating cavity 44 through the guide hole 41. But this is not restrictive either. In other embodiments of the present invention, the end face of the adapter 4 close to the cup cover 3 may also be higher than the end face of the cup mouth close to the cup cover 3, so that the radial dimension of the inner wall of the cup cover 3 needs to be larger than the radial dimension of the adapter 4. At this time, the liquid inlet 412 of the guide hole 41 is arranged on the outer side wall of the adapter 4, and the lower edge of the liquid inlet 412 is flush with the end face of the cup mouth close to the cup cover 3, so that the reagent located in the cavity can more easily flow into the accommodating cavity 44. However, no matter how the positional relationship between the end surface of the adapter 4 close to the cup cover and the end surface of the cup mouth close to the cup cover 3 changes, as long as the second air guide hole 21 and the third air guide hole 32 can be sealed and connected during the specific implementation of the present invention.

[0052] like Figure 5 See also Figure 6 As a possible implementation, the number of the guide holes 41 can also be multiple, and the multiple guide holes 41 are evenly distributed around the end surface of the adapter 4 close to the cup cover 3. It should be noted that although the above combination Figure 2 , Figure 3 and Figure 4 The liquid inlets 412 of the described multiple guide holes 41 are uniformly distributed circumferentially on the end surface of the adapter 4 close to the cup cover 3, but this is not restrictive. In the specific implementation of the present invention, the multiple liquid inlets 412 may not be uniformly distributed circumferentially on the end surface of the adapter 4 close to the cup cover 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 See also Figure 4-Figure 6As a possible implementation, the centrifugal rotor 100 also includes a first sealing groove 22 and a first sealing ring 5. The first sealing groove 22 is circumferentially arranged 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 and connected to the outer wall of the adapter 4 through the first sealing ring 5, so as to further reduce the risk of the reagent flowing into the outer wall of the adapter 4 and the inner wall of the cup body, and reduce the risk of the reagent remaining on the outer wall of the adapter 4 when the user takes out the adapter 4, so as to further improve 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 of the two, the risk of the first air outlet 422 being blocked due to the reagent flowing to the first air outlet 422 can be reduced, thereby further ensuring that the reagent flows smoothly into the accommodating chamber 44.

[0054] like Figure 3 See also Figure 4 As a possible implementation, the centrifugal rotor 100 further includes a first limiting surface 23 and a second limiting surface 43, wherein 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, and 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 with 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 with the first air outlet 422, so as to ensure that the reagent can flow smoothly into the accommodating chamber 44.

[0055] It should be noted that although the above combination Figure 3 and Figure 4 The adapter 4 and the cup body described are positioned by the first limiting surface 23 and the second limiting surface 43, but this is not restrictive. The technicians in this field can also set a first clamping rib on the outer wall of the adapter 4 and a second clamping rib on the inner wall of the cup body as needed, and the positions of the first clamping rib and the second clamping rib are configured so that after the adapter 4 is assembled in place, the first clamping rib and the second clamping rib are matched and connected to prevent the adapter 4 from rotating relative to the cup body, so that after the adapter 4 is installed in place, the second air guide hole 21 can be connected with the first air guide hole 42 to ensure the safety performance of the centrifugal rotor 100.

[0056] like Figure 1 See also Figure 2 and Figure 3The connecting part includes a plurality of rotor hanging pins 6, and the plurality of rotor hanging pins 6 are correspondingly arranged at the ends of the plurality of connecting arms 11 away from the rotating shaft 9, and are used to cooperate and connect with the outer wall of the hanging cup 2, so that after the hanging cup 2 is correspondingly connected with the plurality of rotors, the hanging cup 2 can rotate relative to the rotor bracket 1, so that when the rotor bracket 1 rotates, the hanging cup 2 can rotate from a vertical state to a horizontal state.

[0057] like Figure 1 See also Figure 3 Slide grooves 24 are provided on both sides of the outer wall of the hanging cup 2, and the position of the slide grooves 24 is configured to be connected correspondingly to the rotor hanging pin 6, so that the hanging cup 2 can be detachably connected to the rotor bracket 1, so that the rotor bracket 1 can adapt to hanging cups 2 of different sizes, so that the rotor bracket 1 can adapt to test tubes 7 of different sizes, so as to improve the versatility of the rotor bracket 1 and reduce the use cost of the rotor bracket 1.

[0058] like Figure 1 See also Figure 3-Figure 6 , the centrifugal rotor 100 also includes a first double helix structure 25 and a second double helix structure 31, and the first double helix structure 25 is arranged at the outer edge of the cup mouth. The second double helix structure 31 is arranged at the inner edge of the cup cover 3, and the positions of the first double helix structure 25 and the second double helix structure 31 are configured so that after the cup cover 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 cover 3 can be sealed and connected with the cup body. Specifically, a stop step is provided at the inner edge of the cup cover 3, so that after the first double helix structure 25 and the second double helix structure are tightened with each other, the stop face of the stop step can abut against the end face of the hanging cup 2 close to the cup cover 3, so that after the first double helix structure 25 and the second double helix structure are tightened with each other, the cup cover 3 and the cup body can be closely matched with each other, so that the inner wall of the cup cover 3 and the inner wall of the hanging cup 2 form a sealed cavity. More specifically, the position of the backstop surface is configured so that after the cup body and the cup cover 3 form a sealed cavity, that is, after the first double helix structure 25 and the second double helix structure 31 are rotated into place, the air outlet of the second air guide hole 21 can be aligned with the air inlet of the third air guide hole 32. It should be noted that in the specific implementation of the present invention, a first identification line can be set on the outer wall of the cup body of the hanging cup 2, and a second identification line can be set on the outer wall of the cup cover 3, and the positions of the first identification line and the second identification line are configured so that after the inner wall of the cup cover 3 and the inner wall of the hanging cup 2 form a sealed cavity, the first identification line and the second identification line can be aligned and the first air outlet and the second air inlet can be aligned, and at this time, it is no longer necessary to tighten the cup cover 3.

[0059] Preferably, in the specific implementation of the present invention, the first double helix structure 25 and the second double helix structure 31 are constructed so that the cup cover 3 can be screwed together with the cup body of the hanging book 2 by rotating 120 degrees, so that the user can quickly disassemble and assemble the cup cover 3 to improve the user's satisfaction.

[0060] like Figure 3 See also Figure 4-Figure 6 As a possible embodiment of the present invention, the centrifugal rotor 100 also includes a second sealing groove 33 and a second sealing ring 8. The second sealing groove 33 is arranged on the end face of the cup cover 3 close to the cup mouth, the second sealing groove 33 is annular, and the second sealing groove 33 is located at the periphery of the second air inlet. The second sealing ring 8 is arranged in the second sealing groove 33, so that after the cup cover 3 is installed in place, the stop surface on the cup cover 3 is sealedly connected with the end face of the cup mouth close to the cup cover 3, so that the cup cover 3 is sealedly connected with the cup body through the second sealing ring 8. And because the second sealing groove 33 is located at the periphery of 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, so as to ensure the safety of the centrifugal rotor 100. More specifically, in the implementation of the present invention, the second sealing groove 33 is coaxially arranged with the cup cover 3 and the cup mouth, so that when the cup cover 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 close to the cup cover 3, so that when the cup cover 3 is rotated, the second sealing ring 8 will not move in the radial direction relative to the end face of the cup body close to the cup cover 3, thereby reducing the risk of the second sealing ring 8 being separated from the second sealing groove 33 due to the friction force when the cup cover 3 rotates, thereby further ensuring the safety of the centrifugal rotor 100.

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

[0062] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle 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 these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A centrifugal rotor, characterized in that: The centrifugal rotor comprises: A rotor support, the rotor support comprising a rotating shaft and a plurality of connecting arms, wherein the plurality of connecting arms are connected to the rotating shaft and are evenly distributed on the outer circumference of the rotating shaft, and two adjacent connecting arms form a connecting portion; A hanging cup, which is rotatably connected to the connecting portion; A cup cover, which is arranged on the cup mouth 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, whose outer wall is sealedly connected to the inner wall of the cup body, and the adapter includes a receiving groove and a receiving cavity. The receiving groove is arranged in the middle of the adapter and is used to cooperate with the outer wall of the reagent tube. The receiving cavity is arranged inside the main body of the adapter and is connected to the cavity formed between the cup cover and the cup mouth. The volume of the receiving cavity is constructed to be larger than the volume of the cavity.

2. The centrifugal rotor according to claim 1, characterized in that: The centrifugal rotor includes a guide hole, which is arranged at the end of the adapter close to the cup cover. The guide hole includes a liquid inlet and a liquid outlet. The liquid inlet is arranged at the end surface of the adapter close to the cup cover, and the liquid outlet is arranged on the side wall of the accommodating chamber close to the cup cover, so that the accommodating chamber is connected with the cavity through the guide hole.

3. The centrifugal rotor according to claim 2, characterized in that: The centrifugal rotor also includes: A first air guide hole, which is provided on the adapter, wherein a first air inlet of the first air guide hole is provided on an upper end of a side wall of the accommodating cavity, and a first air outlet of the first air guide hole is provided on an outer side wall of the adapter; a second air guide hole, which is provided in the cup body, a second air inlet of the second air guide hole is provided on the inner wall of the cup body, the position of the second air inlet is configured to be able to communicate with the first air outlet after the adapter is located in the installation position, and the second air outlet of the second air guide hole is provided on the end surface of the cup mouth close to the cup cover; and A third air guide hole is provided on the cup cover, and a third air inlet of the third air guide hole is provided on the end surface of the cup cover close to the cup mouth, and the position of the third air inlet is configured to be able to communicate with the second air outlet after the cup cover is in the installation position, and the third air outlet of the third air guide hole is provided at the top of the inner wall of the cup cover and is connected with the cavity.

4. The centrifugal rotor according to claim 3, characterized in that: The centrifugal rotor also includes: A first sealing groove, which is circumferentially arranged on the inner wall of the cup body, and the position of the first sealing groove is located above the first air outlet; and A first sealing ring is fixedly connected to the first sealing groove, so that the inner wall of the cup body is sealed and connected to the outer wall of the adapter through the first sealing ring.

5. The centrifugal rotor according to claim 1, characterized in that: The centrifugal rotor also includes: a first limiting surface, which is provided on the inner wall of the cup body; and A second limiting surface is arranged on the outer wall of the adapter, and the second limiting surface is arranged corresponding to the first limiting surface, so that when the adapter is inserted into the cup body, the second limiting surface can fit with the first limiting surface to prevent the adapter from rotating relative to the cup body.

6. The centrifugal rotor according to claim 1, characterized in that: The connecting portion comprises a plurality of rotor hanging pins, and the plurality of rotor hanging pins are correspondingly arranged at the ends of the plurality of connecting arms away from the rotating shaft, and are used for being matched and connected with the outer wall of the hanging cup.

7. The centrifugal rotor according to claim 6, characterized in that: Slide grooves are arranged on both sides of the outer wall of the hanging cup, and the slide grooves are configured to be correspondingly connected to the rotor hanging pins.

8. The centrifugal rotor according to claim 1, characterized in that: The centrifugal rotor also includes: A first double helix structure is provided on the outer edge of the cup mouth; and The second double helix structure is arranged on the inner edge of the cup cover, the first double helix structure is configured to be screwed together with the second double helix structure, and the positions of the first double helix structure and the second double helix structure are configured so that after the cup cover 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 cover is sealed and connected to the cup body.

9. The centrifugal rotor according to claim 3, characterized in that: The centrifugal rotor also includes: A second sealing groove, which is provided on the end surface of the cup cover close to the cup mouth, the second sealing groove is annular, and the second sealing groove is located at the periphery of the third air inlet; and The second sealing ring is arranged in the second sealing groove, so that after the cup cover is installed in place, the cup cover is sealed and connected to the cup body through the second sealing ring.

10. A centrifuge, characterized in that: The centrifuge comprises the centrifuge rotor according to any one of claims 1-9.

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