Medical centrifugal machine equipment

Abstract

The invention relates to the technical field of centrifugal equipment, and discloses medical centrifugal machine equipment which comprises a centrifugal shell, an upper cover is installed at the top of the centrifugal shell, an operation panel is installed on the side wall of the centrifugal shell, a plurality of test tube sleeves are arranged in the centrifugal shell, and a driving source is installed in the centrifugal shell. A rotor adjusting assembly is arranged in the centrifugal shell and comprises a central weighing disc, the central weighing disc is rotationally connected to the middle of an inner cavity of the centrifugal shell, a bearing chassis is fixedly connected to the top of the central weighing disc, and a test tube sleeve starts to incline under the limitation of a base by pressing a pressing column; by means of the design, the test tube sleeve can be changed by a large angle, compared with traditional equipment, all parts are compact in layout, occupied space in the equipment is reduced, operation is easier and more convenient, and experimenters can easily adjust the centrifugal angle without tedious steps.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal equipment, and specifically to a medical centrifuge equipment. Background Art

[0002] A medical centrifuge is a device that uses centrifugal force to separate components of different densities in a liquid. It rotates at a high speed to stratify components such as cells and proteins in samples like blood and urine, facilitating medical testing and analysis. It has functions such as precisely controlling the rotation speed and temperature to ensure the accuracy and reliability of experimental results, and is widely used in fields such as clinical diagnosis, biological research, and drug development.

[0003] In a Chinese patent with the patent publication number CN210675534U, a refrigerated centrifuge rotor that can be switched between an angle rotor and a horizontal rotor is disclosed. However, for the equipment in the cited document and the prior art, there are still the following defects in specific use: Firstly, in terms of the switching operation, the above-mentioned patent relies on installing and disassembling the support arm to achieve the rotor mode switching. The steps are relatively cumbersome and the convenience is poor. This operation method will consume the time and energy of experimental personnel in actual use scenarios, reduce the experimental efficiency, and cannot meet the experimental requirements with high requirements for operation efficiency.

[0004] Secondly, from the overall structure, for example, numerous plug-in structures, chutes, and components with various shapes, although this realizes more functions, it significantly increases the complexity of the overall structure. After long-term use, wear and looseness are likely to occur between components. When maintaining, it is necessary to completely disassemble and carefully inspect the complex structure, resulting in a significant increase in the maintenance difficulty and cost, increasing the operating cost of the laboratory and the equipment management burden.

[0005] Finally, in terms of the rotor angle fixing method, in the angle rotor mode, the angle between the hanging cup axis and the rotor frame axis is fixed as a constant value by the support arm, lacking flexibility. However, in actual scientific research experiments, different types of samples and diverse experimental requirements often require different centrifugal angles to achieve the best experimental results. The fixed centrifugal angle is difficult to meet this diverse demand, limiting the application of this refrigerated centrifuge rotor in some special experiments and reducing the versatility and applicability of the equipment.

[0006] Second, currently, the centrifugal chamber of a medical centrifuge mainly relies on natural convection to achieve air exchange. The air flow of natural convection is very slow and unstable. During the operation of the centrifuge, the air in the centrifugal chamber is difficult to circulate fully, which will cause multiple problems: First, due to the lack of effective air flow to carry away heat, the local temperature around the test tube is likely to rise, and the temperature environments of the test tubes at different positions are different, which may affect the activity of biomolecules in the sample, thereby interfering with the accuracy and repeatability of the experimental results. For some samples that are extremely sensitive to temperature, such as certain enzymes and proteins, even a slight temperature fluctuation may cause changes in their structures and functions, resulting in deviations in the detection data. Second, during centrifugation, the sample may volatilize some harmful gases or aerosols, and natural convection is difficult to quickly discharge these substances from the area where the test tubes are placed. This will not only pollute the surrounding environment and increase the risk of cross-contamination, but also may corrode the internal structure of the centrifuge in the long term, shortening the service life of the equipment, and at the same time threatening the health and safety of the operators.

[0007] Therefore, the present invention proposes a medical centrifuge device. Summary of the Invention

[0008] The purpose of the present invention is to provide a medical centrifuge device to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: A medical centrifuge device, including a centrifuge housing, an upper cover is installed on the top of the centrifuge housing, an operation panel is installed on the side wall of the centrifuge housing, several test tube sleeves are arranged inside the centrifuge housing, a drive source is installed inside the centrifuge housing, specifically implemented as a motor, a rotor adjustment component is arranged inside the centrifuge housing, the rotor adjustment component includes a central weighing plate, the central weighing plate is rotatably connected to the middle of the inner cavity of the centrifuge housing, a bearing chassis is fixedly connected to the top of the central weighing plate, a pulling spring is fixedly connected to the outer edge of the bearing chassis, one end of the pulling spring away from the bearing chassis is fixedly connected to a sliding bottom shell, empty slots are arranged in an annular and equally spaced manner on the top side of the bearing chassis, a steel ball is arranged inside each empty slot, a pressing column is slidably connected inside the central weighing plate, several abutting slots are evenly arranged on the outer surface of the pressing column, a supporting spring is fixedly connected to the bottom of the pressing column, the output shaft of the drive source is clamped with the central weighing plate, a cylindrical groove is arranged on the outer surface of the output shaft of the drive source, the side of the supporting spring away from the pressing column is fixedly connected inside the cylindrical groove, bases are fixedly connected to the top of the central weighing plate in an annular and equally spaced manner, two rotating seats are fixedly connected to the outer surface of each test tube sleeve in an upper and lower position, the rotating seat located below is rotatably connected to the outer surface of the base, a connecting shaft is rotatably connected inside the rotating seat located above, the other side of the connecting shaft away from the rotating seat is rotatably connected to a rotating shaft, sliding grooves are arranged in an annular and equally spaced manner on the outer surface of the pressing column, movement grooves are arranged on both sides of each sliding groove, and the rotating shafts are all slidably connected inside the movement grooves.

[0010] Preferably, the sliding bottom shell is slidably connected to the outer surface of the central weighing plate, and the inner edge of the top side of the sliding bottom shell is arranged in a stepped shape.

[0011] Preferably, the side of the empty slot facing the center of the central weighing plate gradually shrinks, and the shape of the abutting slot is adapted to the shape of the steel ball.

[0012] Preferably, a gear is fixedly connected to the outer surface of the rotating shaft, and a tooth block meshing with the gear is installed on the inner wall of the sliding groove.

[0013] Preferably, a sleeve ring is fixedly communicated with the top side of each test tube sleeve, several buffer springs are fixedly connected to the inside of each sleeve ring in an annular and equally spaced manner, and a buffer block is fixedly connected to one side of each buffer spring close to the center of the test tube sleeve.

[0014] Preferably, the upper edge and the lower edge of each buffer block close to the center of the test tube sleeve are both rounded.

[0015] Preferably, an adaptive ventilation component is provided on the outside of the test tube sleeve, and the adaptive ventilation component includes a T-shaped slot opened on the inner wall of the centrifuge shell, the outer surface of each test tube sleeve is fixedly connected to a mounting seat, the interior of each mounting seat is rotatably connected to a telescopic shaft, the outer surface of the telescopic shaft is fixedly connected to an axial flow guide plate, a plurality of T-shaped blocks are slidably connected to the inside of the T-shaped slot, a connecting groove is opened on the side of the T-shaped block close to the center of the centrifuge shell, and the side of the telescopic shaft away from the mounting seat is rotatably connected to the inner wall of the connecting groove.

[0016] Preferably, the axial flow guide plate is arranged at an angle.

[0017] Preferably, a ball block is installed at the bottom of each test tube sleeve, the outer surface of the ball block is rotatably connected to a ball shaft, and the inside of the centrifuge shell is fixedly connected to an angle step.

[0018] Preferably, the angle step has a built-in pressure sensor, and the pressure sensor is electrically connected to the operation panel. The angle step is provided with a plurality of steps, and a plurality of pressure sensors are provided and distributed at the bending parts of the angle step. At the same time, each pressure sensor is electrically connected to the operation panel independently, so that the operation panel can analyze the triggering conditions on different pressure sensors to achieve accurate judgment of the angle.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. By pressing the pressing column, the test tube sleeve begins to tilt under the restriction of the base. Since there are multiple interference grooves, this design enables the test tube sleeve to change a large angle. Compared with traditional equipment, the present invention not only has a compact layout between the various components, reducing the internal space of the equipment, but also is easier to operate. The experimenter can easily adjust the centrifugal angle without complicated steps, which greatly improves the convenience and efficiency of the experimental operation and can fully meet the experimental needs with high requirements for operational efficiency.

[0020] Among them: the unique clamping mechanism of the steel ball and the abutment groove realizes the stable locking function of the test tube cover. During the operation of the equipment, this locking method can effectively prevent the test tube cover from becoming unstable due to tilting, ensuring the stability and reliability of the centrifuge during operation, and providing a strong guarantee for the accuracy of the experimental results.

[0021] Among them: the existence of the sliding bottom shell makes the connection between the driving source and the bearing chassis relatively sealed. This feature effectively improves the cleaning problem of the equipment. In the past, the equipment needed to regularly clean the centrifugal shell and the driving source, which was cumbersome and labor-intensive. The present invention reduces the possibility of dust and other impurities entering the key parts inside the equipment, reduces the cleaning frequency, and extends the service life of the equipment.

[0022] Among them: The meshing of the gear and the tooth blocks on the surface of the chute enables the rotating shaft to move stably within the chute, ensuring its uniform motion state. This not only helps to improve the stability during the operation of the centrifuge but also ensures the consistency and accuracy of the centrifugation effect.

[0023] Among them: Through the above series of delicate structural settings, the present invention no longer needs to disassemble certain components like traditional equipment to achieve the functions of horizontal rotation and angular rotation. This integrated design concept avoids problems such as possible structural damage and inconvenient installation caused by frequent disassembly of components, and further improves the use efficiency of the equipment and the convenience of maintenance.

[0024] Among them: The setting of the buffer spring and the buffer block inside the collar plays a good role in fixing the test tube. During the operation of the centrifuge, the elasticity of the buffer spring can always clamp the test tube, thus preventing the dangerous situation of the test tube being thrown out due to excessive centrifugal force and ensuring the safety of the experimental operation.

[0025] Among them: Since both the upper and lower sides of the buffer block are rounded, when taking the test tube, the rounded design makes the operation of taking the test tube more labor-saving and improves the use experience.

[0026] Among them: While meeting various experimental requirements, the present invention also reduces the overall complexity of the equipment. Compared with the numerous complex plug-in structures, chutes, and components with various shapes of traditional equipment, the structure of the present invention is more concise and clear, reducing the risk of wear and loosening between components, lowering the maintenance difficulty and cost, improving the versatility and applicability of the equipment, and bringing significant economic benefits to the equipment management and operation of the laboratory.

[0027] 2. Driving the axial flow guide plate to rotate through the rotation of the test tube sleeve can achieve an effect similar to that of an axial flow fan. During the operation of the centrifuge, this unique design greatly enhances the air flow in the centrifugation chamber. Compared with the traditional method of relying on natural convection for air exchange, the air flow is no longer slow and unstable but can circulate quickly and fully, effectively avoiding the problem of local temperature rise around the test tube caused by poor air circulation, ensuring that the test tubes at different positions are in a relatively uniform temperature environment, guaranteeing the activity of biological molecules in the sample, and greatly improving the accuracy and repeatability of the experimental results. Especially for samples extremely sensitive to temperature, such as certain enzymes, proteins, etc., it can better maintain the stability of their structure and function, making the detection data more reliable.

[0028] Among them: The cooperative design of the T-shaped groove and the T-shaped block provides a stable support for the movement of the entire adaptive ventilation component. During the process of the test tube sleeve driving the relevant components to move, the T-shaped block slides stably within the T-shaped groove, ensuring the smooth movement of components such as the axial flow guide plate.

[0029] Among them: The rotatable telescopic shaft and the axial flow guide plate have a high degree of adaptability. The axial flow guide plate can adaptively adjust its own angle according to the inclination angle of the test tube sleeve. This characteristic enables the axial flow guide plate to guide the air flow at the best angle in different centrifugation scenarios, further optimizing the air circulation path in the centrifugation chamber, improving the ventilation efficiency, more effectively removing heat and discharging harmful gases or aerosols volatilized from the sample, reducing the risk of cross-contamination, and providing a safer and more stable environment for the experiment.

[0030] Among them: The collaborative design of the ball block, ball shaft and angle step provides an accurate way to obtain the inclination angle of the test tube sleeve. By the ball shaft touching the angle step, the pressure sensor at the bending part of the angle step transmits the signal to the operation panel, and the operation panel can accurately analyze the triggering conditions of different pressure sensors, so as to accurately determine the inclination angle of the test tube sleeve.

[0031] Among them: When the centrifuge is running, the ball shaft will be affected by the centrifugal force, so it will not touch the angle step, which can effectively protect the pressure sensor, prevent it from being in the triggered state all the time, extend the service life of the pressure sensor, reduce equipment failures that may be caused by frequent triggering or mis-triggering of the pressure sensor, and improve the stability and reliability of equipment operation.

[0032] Generally speaking, the structural design of the present invention not only solves the problems of the traditional medical centrifuge in air circulation and angle detection, but also improves the overall performance of the equipment. The compactness and rationality of the structure reduce the occupation of the internal space of the equipment. At the same time, the collaborative work between components improves the intelligence and usability of the equipment, provides new ideas and solutions for the development of medical centrifuges, and strongly promotes the progress of technology in this field. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front view three-dimensional schematic diagram of the main structure of the present invention; Figure 2 It is a sectional three-dimensional schematic diagram of the main structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged three-dimensional schematic diagram of the structure at A in; Figure 4 For the present invention Figure 2 The enlarged three-dimensional schematic diagram of the structure at B in; Figure 5 It is a three-dimensional schematic diagram of the rotor adjustment assembly of the present invention; Figure 6 It is a disassembled three-dimensional schematic diagram of part of the structure in the rotor adjustment assembly of the present invention; Figure 7 It is a sectional three-dimensional schematic diagram of the collar of the present invention; Figure 8 Schematic perspective view of a partial cross-section of the adaptive ventilation component of the present invention; Figure 9 of the present invention Figure 8 Schematic perspective view of the enlarged structure at position C in Figure 10 of the present invention Figure 8 Schematic perspective view of the enlarged structure at position D in

[0034] In the figure: 11. Centrifugal housing; 12. Upper cover; 13. Operation panel; 14. Test tube sleeve.

[0035] 2. Rotor adjustment component; 21. Central weighing plate; 22. Bearing chassis; 23. Pulling spring; 24. Sliding bottom shell; 25. Empty slot; 26. Steel ball; 27. Pressing column; 28. Contact slot; 29. Support spring; 210. Base; 211. Rotating seat; 212. Connecting shaft; 213. Gear; 214. Rotating shaft; 215. Chute; 216. Movement slot; 217. Collar; 218. Buffer spring; 219. Buffer block.

[0036] 3. Adaptive ventilation component; 31. T-shaped slot; 32. Mounting seat; 33. Telescopic shaft; 34. Axial flow guide plate; 35. T-shaped block; 36. Connecting slot; 37. Ball block; 38. Ball shaft; 39. Angle step. Detailed implementation manners

[0037] 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.

[0038] It should be noted that the drive source only provides the centrifugal rotation function for the central weighing plate 21 and the test tube sleeve 14, and the pressure sensor only provides the pressure touch function. The working principle and specific structure of the above structures are all prior arts. Therefore, due to the generality of the above structures, the specific principles will not be described in detail hereinafter.

[0039] Example 1, please refer to as Figures 1 to 7As shown, a medical centrifuge device comprises a centrifuge shell 11, a top cover 12 is installed on the top of the centrifuge shell 11, an operation panel 13 is installed on the side wall of the centrifuge shell 11, a plurality of test tube sleeves 14 are arranged inside the centrifuge shell 11, a driving source is installed inside the centrifuge shell 11, which is specifically implemented as a motor, a rotor adjustment assembly 2 is arranged inside the centrifuge shell 11, and the rotor adjustment assembly 2 comprises a central weighing plate 21, the central weighing plate 21 is rotatably connected to the middle part of the inner cavity of the centrifuge shell 11, a bearing chassis 22 is fixedly connected to the top of the central weighing plate 21, a pull-out spring 23 is fixedly connected to the outer edge of the bearing chassis 22, a sliding bottom shell 24 is fixedly connected to the end of the pull-out spring 23 away from the bearing chassis 22, and the top side of the bearing chassis 22 is provided with empty grooves 25 arranged in an annular manner and at equal intervals, and a steel ball 26 is arranged inside each of the empty grooves 25, and a pressing column 27 is slidably connected to the inside of the central weighing plate 21, and the pressing column 27 The outer surface of the test tube sleeve 14 is evenly provided with a plurality of abutment grooves 28, a support spring 29 is fixedly connected to the bottom of the pressing column 27, the output shaft of the driving source is clamped with the center weighing plate 21, a cylindrical groove is provided on the outer surface of the output shaft of the driving source, the side of the support spring 29 away from the pressing column 27 is fixedly connected to the inside of the cylindrical groove, the top of the center weighing plate 21 is fixedly connected to the base 210 in an annular equidistant arrangement, the outer surface of each test tube sleeve 14 is fixedly connected with two rotating seats 211 in upper and lower positions, the rotating seat 211 located at the bottom is rotatably connected to the outer surface of the base 210, the rotating seat 211 located at the top is rotatably connected with a connecting shaft 212 inside, the connecting shaft 212 is rotatably connected with a rotating shaft 214 on the side away from the rotating seat 211, the outer surface of the pressing column 27 is arranged in an annular equidistant arrangement with sliding grooves 215, each sliding groove 215 has a moving groove 216 on both sides, and the rotating shaft 214 is slidably connected to the inside of the moving groove 216.

[0040] Please refer to Figure 6 and Figure 7 As shown, the outer surface of the rotating shaft 214 is fixedly connected to a gear 213, and a tooth block meshing with the gear 213 is installed on the inner wall of the slide groove 215. The top side of each test tube sleeve 14 is fixedly connected to a ring 217, and the interior of each ring 217 is fixedly connected to a plurality of buffer springs 218 arranged equidistantly in a ring shape, and each buffer spring 218 is fixedly connected to a buffer block 219 on one side close to the center of the test tube sleeve 14.

[0041] It should be noted that the sliding bottom shell 24 is slidably connected to the outer surface of the center weighing plate 21, the inner edge of the top side of the sliding bottom shell 24 is set to be stepped, the empty groove 25 gradually shrinks toward the side of the center of the center weighing plate 21, the shape of the abutment groove 28 is adapted to the shape of the steel ball 26, and the upper and lower edges of each buffer block 219 close to the center of the test tube sleeve 14 are rounded.

[0042] Specifically, the operator first places the test tube to be centrifuged into the test tube sleeve 14. At this time, the buffer springs 218 and buffer blocks 219 arranged at equal intervals in a ring shape within the collar 217 come into play. Since the buffer springs 218 have a certain elasticity, during the process of placing the test tube into the test tube sleeve 14, the buffer springs 218 will be compressed by the test tube and deform. Their elastic force causes the buffer blocks 219 to tightly clamp the test tube. Since the upper and lower edges of the buffer blocks 219 close to the center of the test tube sleeve 14 are both rounded, this user-friendly design makes it more convenient and labor-saving for the operator to pick up the test tube.

[0043] When the experiment needs to be adjusted to the angle rotation mode, first, the operator presses the sliding bottom shell 24. During the pressing process, the pulling spring 23 is compressed. At this time, due to the movement of the sliding bottom shell 24, the steel ball 26 in the empty slot 25 obtains a movement space.

[0044] Then, the operator presses the pressing column 27. At this time, the support spring 29 is compressed, and the pressing column 27 will push the steel ball 26 to the outside of the empty slot 25. By continuously pressing the pressing column 27, the contact slots 28 at different positions can be aligned with the steel ball 26, so as to realize the adjustment of the inclination angle of the test tube sleeve 14.

[0045] Since the rotating shaft 214 is slidably connected inside the movement slot 216, the gear 213 is fixed on the outer surface of the rotating shaft 214 and meshes with the tooth blocks on the inner wall of the sliding slot 215. At the same time, the lower part of the test tube sleeve 14 is restricted by the base 210. Therefore, the entire test tube sleeve 14 will rotate around the base 210 and the rotating seat 211 located below. Specifically, the upper end of the test tube sleeve 14 rotates towards the side close to the center of the centrifugal housing 11, thus realizing the adjustment of the angle in the angle rotation mode. When it is necessary to adjust to the horizontal rotation mode, the operator only needs to operate the above steps in reverse to achieve the horizontal rotation mode.

[0046] When the appropriate angle in the angle rotation mode is adjusted, the operator releases the sliding bottom shell 24. At this time, under the action of the elastic restoring force of the pulling spring 23, the sliding bottom shell 24 returns to its original position and pushes the steel ball 26 back to its original position. The steel ball 26 will be stuck between the contact slot 28 and the empty slot 25. This clamping method ensures the stability of the connection and keeps the adjusted angle.

[0047] At this time, the operator can start the drive source through the operation panel 13. Since the output shaft of the drive source is engaged with the central weighing plate 21, after the drive source is started, it will drive the central weighing plate 21 to rotate. Since the top of the central weighing plate 21 is fixedly connected with a bearing chassis 22, the bearing chassis 22 cooperates with the central weighing plate 21 through a drawing spring 23 and a sliding bottom shell 24, and a series of structures such as empty slots 25 are arranged at equal intervals in a ring shape on the top side of the bearing chassis 22 for placing steel balls 26 and are closely connected, so the rotation of the central weighing plate 21 will drive the bearing chassis 22 and all the components connected above it, including the test tube sleeve 14 connected to the bearing chassis 22 through a rotating seat 211, to rotate together.

[0048] It should be noted that during the operation of the centrifuge, the cooperation between the gear 213 and the tooth blocks on the inner wall of the sliding groove 215 ensures that the rotating shaft 214 can move stably in the sliding groove 215, so that the test tube sleeve 14 maintains a stable state during rotation, thereby ensuring the stability and reliability of the centrifuge operation, ensuring the consistency and accuracy of the centrifugation effect. At the same time, the buffer spring 218 and the buffer block 219 in the collar 217 continuously play a good role in fixing the test tube. The elasticity of the buffer spring 218 can always clamp the test tube to prevent the dangerous situation of the test tube being thrown out due to excessive centrifugal force, ensuring the safety of the experimental operation.

[0049] It should be noted that the design of the empty slot 25 gradually shrinking towards the center of the central weighing plate 21 restricts the steel ball 26 to a specific position in the empty slot 25 under normal conditions.

[0050] Embodiment 2, on the basis of Embodiment 1, please refer to Figures 8 to 10 As shown, an adaptive ventilation component 3 is arranged outside the test tube sleeve 14. The adaptive ventilation component 3 includes a T-shaped groove 31 opened on the inner wall of the centrifuge housing 11. An installation seat 32 is fixedly connected to the outer surface of each test tube sleeve 14. A telescopic shaft 33 is rotatably connected to the inside of each installation seat 32. An axial flow guide plate 34 is fixedly connected to the outer surface of the telescopic shaft 33. A plurality of T-shaped blocks 35 are slidably connected inside the T-shaped groove 31. A connection groove 36 is opened on one side of the T-shaped block 35 close to the center of the centrifuge housing 11. The side of the telescopic shaft 33 away from the installation seat 32 is rotatably connected to the inner wall of the connection groove 36.

[0051] Please refer to Figure 10 As shown, a ball block 37 is installed at the bottom of each test tube sleeve 14. A ball shaft 38 is rotatably connected to the outer surface of each ball block 37. An angle step 39 is fixedly connected to the inside of the centrifuge housing 11.

[0052] It should be noted that the axial flow guide plate 34 is set at an angle, and the angle step 39 has a built-in pressure sensor, which is electrically connected to the operation panel 13. The angle step 39 is provided with multiple steps, and there are multiple pressure sensors, which are distributed at the bends of the angle step 39. At the same time, each pressure sensor is independently electrically connected to the operation panel 13, so that the operation panel 13 can analyze the triggering conditions on different pressure sensors to achieve accurate judgment of the angle. The axial flow guide plate 34 is installed on the fixed end of the telescopic shaft 33.

[0053] Specifically, on the basis of Example 1, since the test tube sleeve 14 will tilt due to the switching between the horizontal rotation and the angular rotation mode, this tilting movement will drive the mounting seat 32 installed on its outer surface to tilt synchronously. The mounting seat 32 serves as a connecting component between the adaptive ventilation component 3 and the test tube sleeve 14, and plays a key role in transmitting the movement. At this time, the side of the telescopic shaft 33 close to the T-block 35 is restricted by the T-slot 31 opened on the inner wall of the centrifuge shell 11. The matching design of the T-slot 31 and the T-block 35 not only provides a stable support for the movement of the entire adaptive ventilation component 3, but also limits the movement trajectory of the telescopic shaft 33. When the test tube sleeve 14 drives the mounting seat 32 to tilt, the telescopic shaft 33 will be stretched and tilted in the direction of rotation of the test tube sleeve 14.

[0054] The change of the angle of the telescopic shaft 33 will directly cause the angle of the axial flow guide plate 34 fixed on its outer surface to change synchronously. Since the axial flow guide plate 34 is tilted, this design enables it to achieve an effect similar to that of an axial flow fan during rotation. By changing the angle of the axial flow guide plate 34, not only the air flow in the centrifugal chamber is greatly enhanced, but also the air can circulate quickly and fully compared with the traditional way of air exchange by natural convection. This feature effectively avoids the problem of local temperature rise around the test tube caused by poor air circulation, ensuring that the test tubes at different positions are in a relatively uniform temperature environment. For biological molecules in the sample that are extremely sensitive to temperature, such as certain enzymes and proteins, the stability of their structure and function can be better maintained, the accuracy and repeatability of the experimental results can be guaranteed, and the detection data can be made more reliable. At the same time, the angle of the axial flow guide plate 34 can be adaptively adjusted according to the tilt angle of the test tube sleeve 14, which can further optimize the air circulation path in the centrifugal chamber, more effectively take away heat and discharge harmful gases or aerosols volatilized by the sample, reduce the risk of cross contamination, and provide a safer and more stable environment for the experiment.

[0055] In addition, when adjusting the angle of the test tube sleeve 14 in the first embodiment, the ball shaft 38 rotatably connected to the outer surface of the ball block 37 installed at the bottom of each test tube sleeve 14 will always remain perpendicular to the inner wall of the centrifugal housing 11 due to the action of gravity. However, the rotation center of the test tube sleeve 14 is on the base 210, that is, it rotates eccentrically relative to the bottom of the test tube sleeve 14. Therefore, during the rotation of the test tube sleeve 14, the position of the ball shaft 38 will move obliquely upward towards the side away from the center of the centrifugal housing 11. During this process, the ball shaft 38 will contact the surface of the angle step 39.

[0056] Since multiple pressure sensors are built into the angle step 39, these pressure sensors are distributed at the bends of the angle step 39, and each pressure sensor is independently electrically connected to the operation panel 13. When the ball shaft 38 contacts the bends at different positions of the angle step 39, the corresponding pressure sensors will be triggered and send electrical signals to the operation panel 13. The operation panel 13 can analyze the triggering conditions of different pressure sensors, thereby accurately determining the tilt angle of the test tube sleeve 14 at this time. This function provides detailed information about the centrifugation state for the experimenter, helps to better control the experimental parameters, and improves the operability and accuracy of the experiment.

[0057] It should be noted in particular that after the device is started, the ball shaft 38 will be synchronously affected by the centrifugal force. Under the influence of the centrifugal force, the ball shaft 38 will not contact the angle step 39, thus ensuring that the angle step 39 will not always be in a state of being contacted. This ingenious design effectively protects the pressure sensors in the angle step 39, prevents them from being always triggered, extends the service life of the pressure sensors, reduces equipment failures that may be caused by frequent or false triggering of the pressure sensors, and improves the stability and reliability of the device operation.

[0058] 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 comprising 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. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0059] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical centrifuge device, comprising a centrifuge housing (11), a top cover (12) being installed on the top of the centrifuge housing (11), an operation panel (13) being installed on the side wall of the centrifuge housing (11), a plurality of test tube sleeves (14) being arranged inside the centrifuge housing (11), and a driving source being installed inside the centrifuge housing (11), characterized in that: A rotor adjustment assembly (2) is arranged inside the centrifuge housing (11). The rotor adjustment assembly (2) comprises a central weighing plate (21). The central weighing plate (21) is rotatably connected to the middle of the inner cavity of the centrifuge housing (11). The top of the central weighing plate (21) is fixedly connected to a load-bearing chassis (22). The outer edge of the load-bearing chassis (22) is fixedly connected to a pull-out spring (23). The end of the pull-out spring (23) away from the load-bearing chassis (22) is fixedly connected to a sliding bottom shell (24). The top side of the load-bearing chassis (22) is provided with hollow grooves (25) arranged in an annular manner and at equal intervals. A steel ball (26) is arranged inside each of the hollow grooves (25). A pressing column (27) is slidably connected to the inside of the central weighing plate (21). The outer surface of the pressing column (27) is evenly provided with a plurality of abutment grooves (28). The bottom of the pressing column (27) is fixedly connected to a support spring (29). The output shaft of the drive source is connected to the central weighing plate (21). The weighing plates (21) are mutually engaged, a cylindrical groove is formed on the outer surface of the output shaft of the driving source, a side of the support spring (29) away from the pressing column (27) is fixedly connected to the inside of the cylindrical groove, the top of the central weighing plate (21) is fixedly connected to a base (210) arranged in an annular manner and equidistantly, the outer surface of each of the test tube sleeves (14) is fixedly connected to two rotating seats (211) in an upper and lower position, the rotating seat (211) located at the bottom is rotatably connected to the outer surface of the base (210), the rotating seat (211) located at the top is rotatably connected to a connecting shaft (212) inside, and the connecting shaft (212) is rotatably connected to a rotating shaft (214) on the side away from the rotating seat (211), and the outer surface of the pressing column (27) is arranged in an annular manner and equidistantly with sliding grooves (215), each of the sliding grooves (215) is provided with a moving groove (216) on both sides, and the rotating shaft (214) is slidably connected to the inside of the moving groove (216).

2. A medical centrifuge device according to claim 1, characterized in that: The sliding bottom shell (24) is slidably connected to the outer surface of the central weighing plate (21), and the inner edge of the top side of the sliding bottom shell (24) is arranged in a stepped shape.

3. A medical centrifuge device according to claim 1, characterized in that: The empty groove (25) gradually shrinks toward one side of the center of the central weighing plate (21), and the shape of the abutment groove (28) matches the shape of the steel ball (26).

4. A medical centrifuge device according to claim 1, characterized in that: The outer surface of the rotating shaft (214) is fixedly connected to a gear (213), and the inner wall of the sliding groove (215) is provided with a gear block that meshes with the gear (213).

5. A medical centrifuge device according to claim 1, characterized in that: The top side of each test tube sleeve (14) is fixedly connected to a collar (217), the interior of each collar (217) is fixedly connected to a plurality of buffer springs (218) arranged equidistantly in a ring shape, and each buffer spring (218) is fixedly connected to a buffer block (219) on one side close to the center of the test tube sleeve (14).

6. A medical centrifuge device according to claim 5, characterized in that: The upper edge and the lower edge of each buffer block (219) close to the center of the test tube sleeve (14) are both rounded.

7. A medical centrifuge device according to any one of claims 1 to 6, characterized in that: An adaptive ventilation assembly (3) is arranged outside the test tube sleeve (14), and the adaptive ventilation assembly (3) comprises a T-shaped slot (31) formed on the inner wall of the centrifuge housing (11); the outer surface of each test tube sleeve (14) is fixedly connected to a mounting seat (32); the interior of each mounting seat (32) is rotatably connected to a telescopic shaft (33); the outer surface of each telescopic shaft (33) is fixedly connected to an axial flow guide plate (34); a plurality of T-shaped blocks (35) are slidably connected inside the T-shaped slot (31); a connecting slot (36) is formed on a side of the T-shaped block (35) close to the center of the centrifuge housing (11); and a side of the telescopic shaft (33) away from the mounting seat (32) is rotatably connected to the inner wall of the connecting slot (36).

8. A medical centrifuge device according to claim 7, characterized in that: The axial flow guide plate (34) is arranged inclined.

9. A medical centrifuge device according to claim 7, characterized in that: A ball block (37) is installed at the bottom of each test tube sleeve (14), and a ball shaft (38) is rotatably connected to the outer surface of the ball block (37). An angle step (39) is fixedly connected to the interior of the centrifuge housing (11).

10. A medical centrifuge device according to claim 9, characterized in that: The angle step (39) has a built-in pressure sensor, and the pressure sensor is electrically connected to the operation panel (13).

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