Blood centrifugal component for centrifugal machine

Abstract

The invention relates to the technical field of centrifugal machines, and discloses a blood centrifugal component for a centrifugal machine, which comprises a rotor and test tube mounting positions, the test tube mounting positions are arranged on the periphery of the rotor in a circumferential array, and the test tube mounting positions and the rotor are movably connected through adjusting arms. A universal butt joint opening is formed in the middle position of the rotor in a penetrating mode, a center rotary knob is movably installed at the center position of the upper end of the rotor, and the center rotary knob is arranged to be in a hollow ring shape. The centrifugal angle of a test tube installation position can be adjusted according to requirements, and the centrifugal angle of the test tube installation position can be adjusted through an adjusting arm; the centrifugal angle can be adjusted according to experiment requirements, the separation effect of all components in blood can be affected by different centrifugal angles, and the device has the advantages of being high in practicability and compatibility.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifuges, and specifically to a blood centrifugation component for a centrifuge. Background Art

[0002] In medical and biological research, centrifuges are commonly used equipment for separating different components in blood, such as plasma, red blood cells, and white blood cells. A centrifuge utilizes the powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to force the particles in the liquid to overcome diffusion and accelerate the sedimentation speed, separating substances with different sedimentation coefficients and buoyancy densities in the sample. By using a centrifuge, the suspended particles in the mixed liquid can be quickly precipitated, thereby separating various substances with different specific gravities. The core component of a centrifuge is the rotor, and the rotor separates different components in the sample through the centrifugal force generated by high-speed rotation.

[0003] The existing centrifuge rotors mainly have several types: horizontal rotors, fixed-angle rotors, vertical rotors, swinging-bucket rotors, and angle rotors. However, the existing centrifuge rotors usually have fixed structures and parameters, which limits their applications under different experimental conditions, with relatively low flexibility. The installation angle of the test tubes is fixed and cannot be adjusted according to experimental requirements, which restricts their applications in some special experiments, such as cell separation experiments that require specific centrifugation angles. Although the swinging-bucket rotor can adapt to different centrifugation angles, its structure is complex, the operation is cumbersome, and the maintenance cost is high. In order to improve the flexibility and applicability of the centrifuge, a general-purpose rotor that can adapt to different centrifugation requirements is needed. Therefore, it is very necessary to design a blood centrifugation component for a centrifuge with strong practicability and high compatibility. Summary of the Invention

[0004] The purpose of the present invention is to provide a blood centrifugation component for a centrifuge to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A blood centrifugation component for a centrifuge, including a rotor and test tube mounting positions. The test tube mounting positions are arranged in a circumferential array around the rotor. The test tube mounting positions and the rotor are movably connected through adjusting arms. A universal docking port is provided through the middle position of the rotor. A central knob is movably installed at the center position of the upper end of the rotor. The central knob is provided as a hollow ring. A transmission member is provided at the lower end of the central knob. The central knob can control the distance between the adjusting arm and the side wall of the rotor through the transmission member. A locking member is provided on the outer wall of the central knob. The central knob is fixedly arranged at the upper end of the rotor through the locking member.

[0006] According to the above technical solution, the adjusting arm includes a connecting block, a limiting body, a central movable body, and a controllable adjusting member. The connecting block is arranged on the side wall of the rotor through the transmission member. The limiting body is fixedly installed at one end of the connecting block. The central movable body is movably installed in the middle of the limiting body. The controllable adjusting member limits and fixes the central movable body.

[0007] According to the above technical solution, the limiting body includes a first limiting cylinder and a second limiting cylinder. The first limiting cylinder and the second limiting cylinder are arranged in a mirror image at one end of the connecting block, and both ends far away are provided with seals. The central movable body includes a central movable plate and an edge ring. The central movable plate is movably installed between the first limiting cylinder and the second limiting cylinder. The edge ring is fixedly sleeved outside the central movable plate. Both ends of the edge ring extend to the middle positions between the first limiting cylinder and the second limiting cylinder respectively. The edge ring is movably sleeved on the outer walls of the first limiting cylinder and the second limiting cylinder.

[0008] According to the above technical solution, the controllable adjusting member includes a square guide rod, a central pushing block, a first spring, a first positioning post, a first positioning groove, and an auxiliary limiting block. The square guide rod is fixedly installed in the first limiting cylinder. The central pushing block is composed of a circular plate section and a cylindrical section. The circular plate section is movably installed in the first limiting cylinder along the square guide rod. The cylindrical section is movably installed through the central movable plate and the second limiting cylinder. A first spring is fixedly installed between the central pushing block and the first limiting cylinder. A first positioning post is fixedly installed at one end of the circular plate section adjacent to the central movable plate. A first positioning groove is evenly distributed within a certain circumferential range on the central movable plate. The first positioning post is movably inserted into the corresponding first positioning groove. The auxiliary limiting blocks are arranged in a circumferential array on the inner side wall of the first limiting cylinder, and the side surfaces of the auxiliary limiting blocks are in contact with the side surface of the circular plate section.

[0009] According to the above technical solution, the transmission member includes a first transmission gear, a movable shaft, a second transmission gear, a threaded rod, a conveying block, and a clamping block. A transmission cavity is formed in the rotor. The lower end of the central knob extends into the transmission cavity and is fixedly installed with the first transmission gear. The movable shafts are arranged in a circumferential array in the transmission cavity. A second transmission gear is fixedly installed at one end of the movable shaft. The second transmission gears are respectively meshed with the first transmission gear. A threaded rod is fixedly installed at one end of the second transmission gear. The conveying block is threadedly connected to the threaded rod. The cross section of the conveying block is square. One end of the conveying block penetrates through the outer side wall of the rotor and is fixedly installed at one end of the connecting block. The clamping blocks are symmetrically fixedly installed at the lower end of the conveying block.

[0010] According to the above technical solution, the locking member includes a movable groove, a first movable plate, a second movable plate, a limiting rod, a positioning column two, a positioning groove two and a magnet. The movable groove is opened on the outer wall of the central knob. The first movable plate is installed in the movable groove in a lifting and movable manner. The limiting rods are arranged in a circumferential array in the movable groove. The limiting rods penetrate through and are movably installed in the first movable plate. The second movable plate is fixedly sleeved outside the first movable plate. The lower end surface of the second movable plate is provided with positioning columns two in a circumferential array. The positioning grooves two are arranged in a circumferential array on the upper end of the rotor. The lower ends of the positioning columns two are magnetically attracted and connected to the corresponding positioning grooves two.

[0011] According to the above technical solution, a second spring is sleeved outside the limiting rod. The upper end of the second spring is in contact with the lower end surface of the first movable plate, and the lower end of the second spring is in contact with the lower bottom surface of the movable groove. The second spring is always in a compressed state.

[0012] According to the above technical solution, the test tube mounting position includes a fixed outer cylinder, a fixed rod and a rubber inner cylinder. The fixed outer cylinder is fixedly installed on the outer wall of the edge ring through the fixed rod. The rubber inner cylinder is arranged inside the fixed outer cylinder. Convex points are fixedly installed on the inner wall of the fixed outer cylinder. Grooves are opened on the outer wall of the rubber inner cylinder. The convex points are movably installed in the grooves.

[0013] According to the above technical solution, an acceleration sensor and an acoustic-optic alarm are respectively arranged on the lower end surface of the rotor. The acceleration sensor and the acoustic-optic alarm are respectively embedded and installed on the lower end surface of the rotor. The acceleration sensor and the acoustic-optic alarm are electrically connected through a wire.

[0014] According to the above technical solution, a first annular surface is opened on the upper end surface of the rotor. The first annular surface is inclined upward towards the center position of the rotor. A second annular surface is opened at the lower end of the rotor. The second annular surface is inclined upward towards the center position of the rotor.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: (1) In the present application, the centrifugation angle of the test tube mounting position can be adjusted according to requirements. The centrifugation angle of the test tube mounting position can be adjusted through the adjusting arm. The centrifugation angle can be adjusted according to the experimental requirements. Different centrifugation angles will affect the separation effect of each component in the blood. By adjusting the centrifugation angle, the separation effect can be optimized, so that components such as plasma, red blood cells, white blood cells and platelets are more clearly stratified. At the same time, different types of blood samples (such as whole blood, plasma, serum, etc.) may require different centrifugation angles to achieve the best separation effect. The adjustable centrifugation angle can better adapt to these different samples to improve the centrifugation effect, and realizes that the same device can adapt to multiple experimental requirements, improving the utilization rate of the device; (2) Through the setting of the transmission component, the distance between the adjusting arm and the side wall of the rotor can be adjusted by the central knob to meet different centrifugation requirements. The operation is simple and easy to master. By adjusting the centrifugal force, a better separation effect can be obtained within the same time, shortening the centrifugation time and improving work efficiency. After the adjustment is completed, the central knob is circumferentially limited by the locking component to ensure the stability of the central knob during blood centrifugation and the stability of the rotor during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the first three-dimensional schematic diagram of the present invention; Figure 2 is the second three-dimensional schematic diagram of the present invention; Figure 3 is the third three-dimensional schematic diagram of the present invention; Figure 4 is the first partial three-dimensional schematic diagram of the present invention; Figure 5 is the second partial three-dimensional schematic diagram of the present invention; Figure 6 is the third partial three-dimensional schematic diagram of the present invention; Figure 7 is the fourth partial three-dimensional schematic diagram of the present invention; Figure 8 is the fifth partial three-dimensional schematic diagram of the present invention; Figure 9 is the present invention Figure 5 an enlarged schematic diagram of part A in; Figure 10 is the present invention Figure 7 an enlarged schematic diagram of part B in; In the figure: 1 - rotor, 2 - test tube mounting position, 21 - fixed outer cylinder, 211 - bump, 22 - fixed rod, 23 - rubber inner cylinder, 231 - groove, 3 - adjusting arm, 31 - connecting block, 32 - limiting body, 321 - first limiting cylinder, 322 - second limiting cylinder, 33 - central movable body, 331 - central movable plate, 332 - edge ring, 34 - controllable adjusting part, 341 - square guide rod, 342 - central pushing block, 343 - first spring, 344 - first positioning post, 345 - first positioning groove, 346 - auxiliary limiting block, 4 - universal docking port, 5 - central knob, 6 - transmission part, 61 - first transmission gear, 62 - movable shaft, 63 - second transmission gear, 64 - threaded rod, 65 - conveying block, 66 - clamping block, 7 - locking part, 71 - movable groove, 72 - first movable plate, 73 - second movable plate, 74 - limiting rod, 75 - second positioning post, 76 - second positioning groove, 77 - magnet, 78 - second spring, 8 - acceleration sensor, 9 - sound and light alarm. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-10 , the present invention provides a technical solution: a blood centrifugation component for a centrifuge, including a rotor 1 and a test tube mounting position 2. The test tube mounting position 2 is arranged in a circumferential array around the rotor 1. The test tube mounting position 2 and the rotor 1 are movably connected by an adjusting arm 3. A universal docking port 4 is penetrated through the middle position of the rotor 1. A central knob 5 is movably installed at the center position of the upper end of the rotor 1. The central knob 5 is arranged as a hollow ring. A transmission part 6 is provided at the lower end of the central knob 5. The central knob 5 can control the distance between the adjusting arm 3 and the side wall of the rotor 1 through the transmission part 6. A locking part 7 is provided on the outer wall of the central knob 5. The central knob 5 is fixedly arranged at the upper end of the rotor 1 through the locking part 7; When this application is used in blood centrifugation, it is used as a blood centrifugation component of a centrifuge. The material of the rotor 1 can be set as stainless steel. The rotor 1 made of stainless steel has good corrosion resistance, high mechanical strength, good biocompatibility and good workability. It can resist corrosive substances in blood and other biological liquids, can withstand the centrifugal force generated by high-speed rotation, will not contaminate blood samples, and is easy to process and weld. It is suitable for making rotors with slightly complex shapes. During the use of this application, it is connected to the rotor shaft of the centrifuge through the universal interface 4 and fixed by screws to ensure the reliable installation of the rotor 1; Six test tube mounting positions 2 are provided in this application and are evenly distributed around the rotor 1 in a circle. The angle between adjacent test tube mounting positions 2 is set to 60 degrees. Before placing the test tube containing blood, the inspection personnel can adjust the centrifugation angle of the test tube mounting position 2 according to needs. The centrifugation angle of the test tube mounting position 2 can be adjusted through the adjusting arm 3. The centrifugation angle can be adjusted according to experimental needs. Different centrifugation angles will affect the separation effect of each component in the blood. By adjusting the centrifugation angle, the separation effect can be optimized, making components such as plasma, red blood cells, white blood cells and platelets layer more clearly. At the same time, different types of blood samples (such as whole blood, plasma, serum, etc.) may require different centrifugation angles to achieve the best separation effect. The adjustable centrifugation angle can better adapt to these different samples to improve the centrifugation effect, and realizes that the same device can meet multiple experimental needs and improves the utilization rate of the device; At the same time, through the setting of the transmission member 6, the distance between the adjusting arm 3 and the side wall of the rotor 1 can be adjusted by the central knob 5 to adapt to different centrifugation requirements. The operation is simple and easy to master. By adjusting the centrifugal force, a better separation effect can be obtained in the same time, shortening the centrifugation time and improving work efficiency. After the adjustment is completed, the central knob 5 is circumferentially limited by the locking member 7 to ensure the stability of the central knob 5 during blood centrifugation and the stability of the operation process of the rotor 1; Specifically, the adjusting arm 3 includes a connecting block 31, a limiting body 32, a central movable body 33 and a controllable adjusting member 34. The connecting block 31 is arranged on the side wall of the rotor 1 through the transmission member 6. The limiting body 32 is fixedly installed at one end of the connecting block 31. The central movable body 33 is movably installed in the middle of the limiting body 32. The controllable adjusting member 34 limits and fixes the central movable body 33; This application fixes the central movable body 33 through the controllable adjusting member 34. When the centrifugation angle needs to be adjusted, it can be opened through the controllable adjusting member 34, and then the centrifugation angle of the test tube can be appropriately adjusted; Specifically, the limiting body 32 includes a first limiting cylinder 321 and a second limiting cylinder 322. The first limiting cylinder 321 and the second limiting cylinder 322 are arranged in a mirror image at one end of the connecting block 31, and sealing ends are provided at both ends far away from each other. The central movable body 33 includes a central movable plate 331 and an edge ring 332. The central movable plate 331 is movably installed between the first limiting cylinder 321 and the second limiting cylinder 322. The edge ring 332 is fixedly sleeved outside the central movable plate 331. Both ends of the edge ring 332 extend to the middle positions of the first limiting cylinder 321 and the second limiting cylinder 322 respectively, and the edge ring 332 is movably sleeved on the outer walls of the first limiting cylinder 321 and the second limiting cylinder 322. The first limiting cylinder 321 and the second limiting cylinder 322 are arranged in a mirror image at one end of the connecting block 31. There is no connecting end at the middle position between the first limiting cylinder 321 and the second limiting cylinder 322. The central movable plate 331 is movably installed between the first limiting cylinder 321 and the second limiting cylinder 322 and can rotate circumferentially. The edge ring 332 is sleeved outside the central movable plate 331 and limits the central movable plate 331 at the same time. The edge ring 332 can only perform circumferential rotational motion. Specifically, the controllable adjusting member 34 includes a square guiding rod 341, a central pushing block 342, a first spring 343, a first positioning post 344, a first positioning groove 345, and an auxiliary limiting block 346. The square guiding rod 341 is fixedly installed in the first limiting cylinder 321. The central pushing block 342 is composed of a circular plate section and a cylindrical section. The circular plate section is movably installed in the first limiting cylinder 321 along the square guiding rod 341, and the cylindrical section is movably installed through the central movable plate 331 and the second limiting cylinder 322. The first spring 343 is fixedly installed between the central pushing block 342 and the first limiting cylinder 321. A first positioning post 344 is fixedly installed at one end of the circular plate section adjacent to the central movable plate 331. The first positioning grooves 345 are uniformly distributed within a certain circumferential range on the central movable plate 331. The first positioning post 344 is movably inserted into the corresponding first positioning groove 345. The auxiliary limiting blocks 346 are arranged in a circumferential array on the inner side wall of the first limiting cylinder 321, and the side walls of the auxiliary limiting blocks 346 are in contact with the side wall of the circular plate section. The center push block 342 is pushed by the elastic force of the first spring 343, causing the first positioning post 344 to be positioned in the corresponding first positioning groove 345. The number of the first positioning grooves 345 in this application is set to 4, which are evenly arranged within 90 degrees. The angle between adjacent first positioning grooves 345 is set to 30 degrees. The angles of the first positioning grooves 345 are respectively set at 0 degrees, 30 degrees, 60 degrees, and 90 degrees, corresponding to the horizontal rotor, the fixed rotor, and the vertical rotor respectively, and can be adaptively adjusted according to the centrifugal requirements. The square guide rod 341 plays a guiding and limiting role for the center push block 342, and the auxiliary limiting block 346 can play an auxiliary limiting role for the center push block 342 to prevent the first positioning post 344 from being broken due to excessive elastic force of the first spring 343; Specifically, the transmission member 6 includes a first transmission gear 61, a movable shaft 62, a second transmission gear 63, a threaded rod 64, a conveying block 65, and a clamping block 66. A transmission cavity is formed in the rotor 1. The lower end of the center knob 5 extends into the transmission cavity and is fixedly installed with the first transmission gear 61. The movable shafts 62 are arranged in a circumferential array in the transmission cavity. One end of the movable shaft 62 is fixedly installed with the second transmission gear 63. The second transmission gears 63 are respectively meshed with the first transmission gear 61. One end of the second transmission gear 63 is fixedly installed with the threaded rod 64. The conveying block 65 is threadedly connected to the threaded rod 64. The cross section of the conveying block 65 is square. One end of the conveying block 65 penetrates through the outer wall of the rotor 1 and is fixedly installed at one end of the connecting block 31. The clamping blocks 66 are symmetrically and fixedly installed at the lower end of the conveying block 65; The first transmission gear 61, the movable shaft 62, the second transmission gear 63, and the threaded rod 64 can be selected with appropriate models according to requirements and are common technical means in this technical field, so no more details will be described here. The conveying block 65 is controlled by the center knob 5, and its extension amount is appropriately adjusted. The clamping block 66 plays a role in limiting the displacement of the conveying block 65; Specifically, the locking member 7 includes a movable groove 71, a first movable plate 72, a second movable plate 73, a limiting rod 74, a second positioning post 75, a second positioning groove 76, and a magnet 77. The movable groove 71 is formed in the outer wall of the center knob 5. The first movable plate 72 is installed in the movable groove 71 in a lifting manner. The limiting rods 74 are arranged in a circumferential array in the movable groove 71. The limiting rods 74 penetrate through and are movably installed in the first movable plate 72. The second movable plate 73 is fixedly sleeved outside the first movable plate 72. The lower end surface of the second movable plate 73 is provided with the second positioning posts 75 in a circumferential array. The second positioning grooves 76 are arranged in a circumferential array at the upper end of the rotor 1. The lower ends of the second positioning posts 75 are magnetically attracted and connected to the corresponding second positioning grooves 76; The movable plate one 72 and the movable plate two 73 can perform lifting activities. When the positioning post two 75 is located in the corresponding positioning groove two 76, the central knob 5 is in the locked state and cannot be twisted. And through the setting of the magnet 77, the placement stability of the positioning post two 75 can be increased; Specifically, a second spring 78 is sleeved outside the limiting rod 74. The upper end of the second spring 78 is in contact with the lower end surface of the movable plate one 72, and the lower end of the second spring 78 is in contact with the lower bottom surface of the movable groove 71. The second spring 78 is always in a compressed state; When the central knob 5 needs to be unlocked, by pulling up the movable plate two 73, and at the same time pushing up the movable plate one 72 by the elastic force of the second spring 78. When the movable plate one 72 is at the topmost position, the positioning post two 75 disengages from the corresponding positioning groove two 76. At the same time, the movable plate one 72 is maintained at the topmost position by the elastic force of the second spring 78, and the magnet 77 cannot play a suction role. People can smoothly rotate the central knob 5. After the adjustment is completed, push the movable plate one 72 downward and insert the positioning post two 75 into the corresponding positioning groove two 76. At this time, the elastic force of the second spring 78 is less than the magnetic suction force of the magnet 77, and the operation is simple; Specifically, the test tube installation position 2 includes a fixed outer cylinder 21, a fixed rod 22 and a rubber inner cylinder 23. The fixed outer cylinder 21 is fixedly installed on the outer wall of the edge ring 332 through the fixed rod 22. The rubber inner cylinder 23 is arranged inside the fixed outer cylinder 21. A bump 211 is fixedly installed on the inner wall of the fixed outer cylinder 21, and a groove 231 is formed on the outer wall of the rubber inner cylinder 23. The bump 211 is movably installed in the groove 231; The fixed outer cylinder 21 and the fixed rod 22 are fixed and unchanged. The rubber inner cylinder 23 can be conveniently disassembled and installed, and different models of rubber inner cylinders 23 can be replaced. There are various types of rubber inner cylinders 23, which are convenient for adapting to test tubes of different specifications, such as 13mm, 15mm, 16mm, 18mm, etc.; Specifically, an acceleration sensor 8 and an acoustic-optic alarm 9 are respectively arranged on the lower end surface of the rotor 1. The acceleration sensor 8 and the acoustic-optic alarm 9 are respectively embedded and installed on the lower end surface of the rotor 1. The acceleration sensor 8 and the acoustic-optic alarm 9 are electrically connected by a wire; The acceleration sensor 8 and the acoustic-optic alarm 9 are respectively arranged on the lower end surface of the rotor 1. During the centrifugation process, the acceleration sensor 8 detects the acceleration change of the rotor during rotation. When the acceleration change exceeds the preset threshold, the acoustic-optic alarm 9 triggers an alarm. At the same time, the acceleration sensor 8 sends a signal to an external receiver through a built-in transmitter. The external receiver (such as a data acquisition card, a computer, etc.) receives the signal and processes it, and can perform an automatic shutdown operation on the centrifuge main unit in time; Specifically, a first annular surface is provided on the upper end surface of the rotor 1, and the first annular surface is inclined upward towards the center of the rotor 1. A second annular surface is provided at the lower end of the rotor 1, and the second annular surface is inclined upward towards the center of the rotor 1. The settings of the first annular surface and the second annular surface can effectively reduce the mass and volume of the rotor 1, thereby reducing the energy required during the startup and acceleration processes of the rotor 1, thus reducing energy consumption and improving energy efficiency. Moreover, the lighter rotor generates less centrifugal force during high-speed rotation, thereby reducing the mechanical stress on the rotor and the support structure and extending the service life of the equipment.

[0019] Working principle: There are six test tube mounting positions 2 in this application, and they are evenly distributed in a circle around the rotor 1. The angle between adjacent test tube mounting positions 2 is set to 60 degrees. Before placing the test tubes filled with blood, the inspection personnel can adjust the centrifugation angle of the test tube mounting position 2 according to requirements. The centrifugation angle of the test tube mounting position 2 can be adjusted through the adjustment arm 3. The centrifugation angle can be adjusted according to experimental requirements. Different centrifugation angles will affect the separation effect of each component in the blood. By adjusting the centrifugation angle, the separation effect can be optimized, making the components such as plasma, red blood cells, white blood cells, and platelets layer more clearly. At the same time, different types of blood samples (such as whole blood, plasma, serum, etc.) may require different centrifugation angles to achieve the best separation effect. The adjustable centrifugation angle can better adapt to these different samples to improve the centrifugation effect, and it realizes that the same device can adapt to multiple experimental requirements, improving the utilization rate of the device. At the same time, through the setting of the transmission member 6, the distance between the adjustment arm 3 and the side wall of the rotor 1 can be adjusted by the central knob 5 to adapt to different centrifugation requirements. The operation is simple and easy to master. By adjusting the centrifugal force, a better separation effect can be obtained in the same time, shortening the centrifugation time and improving work efficiency. After the adjustment is completed, the central knob 5 is circumferentially limited by the locking member 7 to ensure the stability of the central knob 5 during blood centrifugation and ensure the stability of the operation process of the rotor 1.

[0020] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A blood centrifuge component for a centrifuge, comprising a rotor (1) and a test tube mounting position (2), characterized in that: The test tube mounting positions (2) are arranged in a circular array around the rotor (1); the test tube mounting positions (2) and the rotor (1) are movably connected via an adjusting arm (3); a universal docking port (4) is provided through the middle of the rotor (1); a center knob (5) is movably mounted at the center of the upper end of the rotor (1); the center knob (5) is arranged in a hollow ring shape; a transmission member (6) is provided at the lower end of the center knob (5); the center knob (5) can control the distance between the adjusting arm (3) and the side wall of the rotor (1) via the transmission member (6); a locking member (7) is provided on the outer wall of the center knob (5); the center knob (5) is fixedly arranged at the upper end of the rotor (1) via the locking member (7).

2. A blood centrifuge component for a centrifuge according to claim 1, characterized in that: The regulating arm (3) comprises a connecting block (31), a limiting body (32), a central movable body (33) and a controllable regulating member (34); the connecting block (31) is arranged on the side wall of the rotor (1) via the transmission member (6); the limiting body (32) is fixedly mounted on one end of the connecting block (31); the central movable body (33) is movably mounted in the middle of the limiting body (32); and the controllable regulating member (34) limits and fixes the central movable body (33).

3. A blood centrifugal component for a centrifuge according to claim 2, characterized in that: The limiting body (32) comprises a limiting cylinder 1 (321) and a limiting cylinder 2 (322), wherein the limiting cylinder 1 (321) and the limiting cylinder 2 (322) are arranged in a mirror image at one end of the connecting block (31) and are both provided with a seal at the other end away from the connecting block (31). The central movable body (33) comprises a central movable plate (331) and an edge ring (332), wherein the central movable plate (331) is movably mounted between the limiting cylinder 1 (321) and the limiting cylinder 2 (322), wherein the edge ring (332) is fixedly sleeved outside the central movable plate (331), wherein two ends of the edge ring (332) respectively extend to the middle position of the limiting cylinder 1 (321) and the limiting cylinder 2 (322), and wherein the edge ring (332) is movably sleeved on the outer wall of the limiting cylinder 1 (321) and the limiting cylinder 2 (322).

4. A blood centrifugal component for a centrifuge according to claim 3, characterized in that: The controllable adjustment member (34) comprises a square guide rod (341), a central push block (342), a spring (343), a positioning column (344), a positioning groove (345) and an auxiliary limit block (346); the square guide rod (341) is fixedly mounted in the limit tube (321); the central push block (342) is composed of a circular plate segment and a cylindrical segment; the circular plate segment is movably mounted in the limit tube (321) along the square guide rod (341); the cylindrical segment is movably mounted in the central movable plate (331) and the limit tube (322); The spring 1 (343) is fixedly installed between the central pushing block (342) and the limiting cylinder 1 (321); a positioning column 1 (344) is fixedly installed on one end of the circular plate segment adjacent to the central movable plate (331); positioning grooves 1 (345) are evenly distributed within a certain circumferential range on the central movable plate (331); the positioning column 1 (344) is movably inserted into the corresponding positioning groove 1 (345); the auxiliary limiting blocks (346) are arranged in a circular array on the inner side wall of the limiting cylinder 1 (321), and the auxiliary limiting blocks (346) are in contact with the side wall surface of the circular plate segment.

5. A blood centrifugal component for a centrifuge according to claim 2, characterized in that: The transmission member (6) comprises a transmission gear 1 (61), a movable shaft (62), a transmission gear 2 (63), a threaded rod (64), a conveying block (65) and a clamping block (66). A transmission cavity is provided in the rotor (1). The lower end of the central knob (5) extends into the transmission cavity and is fixedly mounted with the transmission gear 1 (61). The movable shaft (62) is arranged in a circular array in the transmission cavity. The transmission gear 2 (63) is fixedly mounted on one end of the movable shaft (62). The transmission gear 2 (63) is respectively meshed with the transmission gear 1 (61). The threaded rod (64) is fixedly mounted on one end of the transmission gear 2 (63). The conveying block (65) is threadedly connected to the threaded rod (64). The conveying block (65) has a square cross section. One end of the conveying block (65) passes through the outer wall of the rotor (1) and is fixedly mounted on one end of the connecting block (31). The clamping block (66) is symmetrically fixedly mounted on the lower end of the conveying block (65).

6. A blood centrifuge component for a centrifuge according to claim 1, characterized in that: The locking member (7) comprises a movable groove (71), a movable plate 1 (72), a movable plate 2 (73), a limiting rod (74), a positioning column 2 (75), a positioning groove 2 (76) and a magnet (77); the movable groove (71) is provided on the outer wall of the central knob (5); the movable plate 1 (72) is installed in the movable groove (71) in a lifting and moving manner; the limiting rod (74) is arranged in a circular array in the movable groove (71); the limiting rod (74) penetrates and is installed in the movable plate 1 (72); the movable plate 2 (73) is fixedly sleeved outside the movable plate 1 (72); the lower end surface of the movable plate 2 (73) has positioning columns 2 (75) in a circular array; the positioning grooves 2 (76) are arranged in a circular array at the upper end of the rotor (1); and the lower ends of the positioning columns 2 (75) are attracted and connected to the corresponding positioning grooves 2 (76) through magnets (77).

7. A blood centrifugal component for a centrifuge according to claim 6, characterized in that: The limiting rod (74) is provided with a second spring (78) on its outer sleeve, the upper end of the second spring (78) contacts the lower end surface of the first movable plate (72), the lower end of the second spring (78) contacts the lower bottom surface of the movable groove (71), and the second spring (78) is always in a compressed state.

8. A blood centrifugal component for a centrifuge according to claim 3, characterized in that: The test tube mounting position (2) comprises a fixed outer cylinder (21), a fixed rod (22) and a rubber inner cylinder (23); the fixed outer cylinder (21) is fixedly mounted on the outer wall of the edge ring (332) via the fixed rod (22); the rubber inner cylinder (23) is arranged inside the fixed outer cylinder (21); a convex point (211) is fixedly mounted on the inner wall of the fixed outer cylinder (21); a groove (231) is formed on the outer wall of the rubber inner cylinder (23); and the convex point (211) is movably mounted in the groove (231).

9. A blood centrifugal component for a centrifuge according to claim 1, characterized in that: An acceleration sensor (8) and an audible and visual alarm (9) are respectively provided on the lower end surface of the rotor (1); the acceleration sensor (8) and the audible and visual alarm (9) are respectively embedded and mounted on the lower end surface of the rotor (1); and the acceleration sensor (8) and the audible and visual alarm (9) are electrically connected via a wire.

10. A blood centrifuge component for a centrifuge according to claim 1, characterized in that: The upper end surface of the rotor (1) is provided with a first annular surface, the first annular surface being arranged upwardly and tilted toward the center position of the rotor (1), and the lower end of the rotor (1) is provided with a second annular surface, the second annular surface being arranged upwardly and tilted toward the center position of the rotor (1).

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