Centrifuge facilitating the location of sample tubes

Abstract

The application relates to the field of centrifuges, and discloses a centrifuge facilitating sample tube limiting, which comprises a centrifuge box, a centrifugal table is rotationally arranged in the centrifuge box, a plurality of sample racks for placing sample tubes are fixed in the circumferential direction on the centrifugal table, a limiting plate for limiting the sample tubes is arranged on the top of the centrifugal table, and an adjusting assembly for adjusting the limiting state of the limiting plate is arranged; the limiting plate for limiting the sample tubes is arranged on the top of the centrifugal table, the limiting plate can effectively constrain the sample tubes in the centrifugal process, can effectively prevent the sample tubes from tilting or deviating due to inertia, and can avoid the situation that the tube body and the tube rack structure are stuck, so that the operator can directly take out the sample tubes without disassembling the internal rack of the centrifuge, the work efficiency is improved, the operation time and the labor cost are saved, the risk that the blood samples are polluted in the taking-out process is effectively reduced, and the safety and reliability of the experiment are ensured.

Description

Technical Field

[0001] This application relates to the field of centrifuges, and in particular to a centrifuge that facilitates the positioning of sample tubes. Background Technology

[0002] Centrifuges are commonly used equipment in biomedical laboratories and are widely used in experimental operations such as serum separation and cell precipitation. During serum separation, serum tubes usually need to be placed vertically inside the centrifuge to ensure centrifugation efficiency and avoid mixing of serum and blood cells. However, the internal tube rack structure of existing centrifuges does not fully consider the dynamic characteristics of serum tubes during centrifugation. After centrifugation, the serum tubes may tilt or shift due to inertia, causing the tube body to become stuck in the tube rack structure and making it impossible to remove them directly. Therefore, operators need to disassemble the internal rack of the centrifuge to remove the sample tubes. This process is not only time-consuming and laborious, but also poses a risk of blood sample contamination. To solve the above problems, this application provides a centrifuge that facilitates the positioning of sample tubes.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0004] To address the aforementioned issues, this application provides a centrifuge that facilitates the positioning of sample tubes.

[0005] The centrifuge for facilitating the positioning of sample tubes provided in this application adopts the following technical solution:

[0006] A centrifuge for facilitating the positioning of sample tubes includes a centrifuge chamber, a centrifuge stage rotatably disposed inside the centrifuge chamber, a plurality of sample racks for placing sample tubes are circumferentially fixed on the centrifuge stage, and a limiting plate for positioning the sample tubes and an adjusting component for adjusting the positioning state of the limiting plate are provided on the top of the centrifuge stage. The number of limiting plates corresponds to the number of sample racks, and the plurality of limiting plates can be used simultaneously or individually.

[0007] Preferably, the adjusting assembly includes an adjusting cylinder, a stop block, an adjusting column, a limiting block, a support plate, and a spring. The adjusting cylinder is fixed to the top of the centrifuge table. Multiple limiting grooves are circumferentially formed on the top of the adjusting cylinder. Multiple stop blocks are provided, and each stop block is fixed to the top of a limiting groove. The limiting block is circumferentially fixed to the surface of the adjusting column. The limiting block and the limiting groove are inserted into each other. The top of the limiting block abuts against the bottom of the stop block. The support plate rotates at the bottom of the adjusting column. One end of the spring is fixed to the bottom of the support plate, and the other end of the spring is fixed to the top of the centrifuge table. The adjusting column slides inside the adjusting cylinder, and the limiting plate slides vertically on the adjusting column.

[0008] Preferably, a sliding rod is fixed on one side of each limiting plate, and a wedge-shaped groove is formed on the surface of the adjusting column to cooperate with the wedge shape of the sliding rod.

[0009] Preferably, the top of the adjusting column is threaded with a threaded cylinder, and the bottom of the threaded cylinder abuts against the top of the slide rod.

[0010] Preferably, two reinforcing rods are fixed to one side of the limiting plate, and the ends of the two reinforcing rods away from the limiting plate are simultaneously fixed to the ends of the sliding rod away from the limiting plate.

[0011] Preferably, a support block is fixed to the bottom of the slide rod, and the bottom of the support block is in contact with the top of the adjusting cylinder.

[0012] Preferably, the top of the stop block is provided with a first scale, and the top of the limiting block is provided with a second scale corresponding to the first scale.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] By installing a limiting plate at the top of the centrifuge stand to constrain the sample tubes, the limiting plate effectively restrains the sample tubes during centrifugation. Compared with related technologies, this effectively prevents the tubes from tilting or shifting due to inertia, thus avoiding jamming between the tube body and the tube rack structure. Operators can then directly remove the sample tubes without disassembling the internal rack of the centrifuge, improving work efficiency, saving operation time and labor costs, and effectively reducing the risk of blood sample contamination during removal, ensuring the safety and reliability of the experiment. Furthermore, by adjusting the limiting component to restrict or remove the limiting plate from the sample tubes, the stability of the sample tubes can be maintained during centrifugation, and the limiting can be removed after centrifugation, thus avoiding interference with subsequent experiments and further improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the limiting plate's limiting state structure in an embodiment of the application;

[0016] Figure 2 This is a schematic diagram of the limiting plate in the unlimited state structure according to the embodiment of the application;

[0017] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a side sectional view of the regulating cylinder structure according to an embodiment of the application;

[0019] Figure 5 This is a schematic diagram of the adjusting column structure in the embodiment of the application;

[0020] Figure 6This is a schematic diagram of the regulating cylinder structure in the embodiment of the application;

[0021] Figure 7 This is a schematic diagram of the limiting plate structure in an embodiment of the application;

[0022] Figure 8 This is a schematic diagram of the threaded cylinder structure according to an embodiment of the application.

[0023] Explanation of reference numerals in the attached drawings: 1. Centrifuge chamber; 2. Centrifuge stage; 3. Sample rack; 4. Sample tube; 5. Adjusting cylinder; 6. Limiting groove; 7. Stop block; 8. Scale one; 9. Adjusting column; 10. Limiting block; 11. Scale two; 12. Wedge groove; 13. Sliding rod; 14. Limiting plate; 15. Reinforcing rod; 16. Support block; 17. Support plate; 18. Spring; 19. Threaded cylinder. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0025] This application discloses a centrifuge for facilitating the positioning of sample tubes. (Refer to...) Figure 1-8 A centrifuge for conveniently limiting sample tubes includes a centrifuge chamber 1, a centrifuge stage 2 rotatably disposed inside the centrifuge chamber 1, a plurality of sample racks 3 for placing sample tubes 4 are circumferentially fixed on the centrifuge stage 2, a limiting plate 14 for limiting the sample tubes 4 is provided on the top of the centrifuge stage 2, and an adjusting assembly for adjusting the limiting state of the limiting plate 14 is provided. The adjusting assembly includes an adjusting cylinder 5, a stop block 7, an adjusting column 9, a limiting block 10, a support plate 17, and a spring 18. The adjusting cylinder 5 is fixed to the top of the centrifuge stage 2. Multiple limiting grooves 6 are provided around the circumference of the column 9, and multiple stop blocks 7 are provided. The multiple stop blocks 7 are respectively fixed on the top of the limiting grooves 6. The limiting block 10 is fixed around the surface of the adjusting column 9. The limiting block 10 is inserted into the limiting groove 6. The top of the limiting block 10 abuts against the bottom of the stop block 7. The support plate 17 rotates at the bottom of the adjusting column 9. One end of the spring 18 is fixed to the bottom of the support plate 17, and the other end of the spring 18 is fixed to the top of the centrifuge table 2. The adjusting column 9 slides inside the adjusting cylinder 5, and the limiting plate 14 slides vertically on the adjusting column 9.

[0026] In the initial state, the limiting block 10 on the surface of the adjusting column 9 is inserted into the limiting groove 6 at the top of the adjusting cylinder 5. Due to the insertion and engagement of the limiting block 10 and the limiting groove 6, as well as the abutting action of the limiting block 10 and the stop block 7, the adjusting column 9 is fixed inside the adjusting cylinder 5 and cannot be rotated or moved at will. At the same time, the bottom of the adjusting column 9 is rotatably connected to the support plate 17. One end of the spring 18 is fixed to the bottom of the support plate 17, and the other end is fixed to the top of the centrifuge table 2. The spring 18 is in a naturally extended state, providing elastic support for subsequent adjustment. The limiting plate 14 slides vertically on the adjusting column 9, providing space for subsequent cancellation of the limiting. At this time, the limiting plate 14 and the sample holder 3 are staggered, so the limiting plate 14 does not limit the sample tube 4 at this time.

[0027] In use, place the sample tube 4 in the corresponding sample holder 3. The operator presses down the adjusting column 9 to push the support plate 17, causing the spring 18 to contract until the limiting block 10 disengages from the limiting groove 6. At this time, the adjusting column 9 can be rotated to rotate the limiting plate 14 on it until the limiting block 10 moves below the adjacent limiting groove 6. Then, the force applied to the adjusting column 9 is released. Under the elastic force of the spring 18, the limiting block 10 is inserted back into the limiting groove 6 at the top of the adjusting cylinder 5, and the top of the limiting block 10 abuts against the bottom of the stop block 7 again. At this time, the bottom of the limiting plate 14... The part of the sample holder is attached to the top of the sample tube 4 to limit the sample tube 4 and ensure that the sample tube 4 remains vertical and stable during centrifugation. This can effectively prevent it from tilting or shifting due to inertia, thereby avoiding the situation where the sample tube 4 gets stuck between the sample holder 3 and the sample tube body. As a result, the operator can directly remove the sample tube 4 without disassembling the sample holder 3. This not only improves work efficiency and saves operation time and labor costs, but also effectively reduces the risk of blood sample contamination during the removal process, ensuring the safety and reliability of the experiment.

[0028] After the centrifugation operation is completed, press down the adjusting column 9 again to push the tray 17 so that the spring 18 contracts until the limiting block 10 disengages from the limiting groove 6. At this time, rotate the adjusting column 9 in the opposite direction to drive the limiting plate 14 on it to rotate until the limiting block 10 moves below the initial limiting groove 6. Then, release the force applied to the adjusting column 9. Under the elastic force of the spring 18, the limiting block 10 is inserted into the initial limiting groove 6 at the top of the adjusting cylinder 5, and the top of the limiting block 10 abuts against the bottom of the stop block 7 again. At this time, the limiting plate 14 rotates away from the top of the sample tube 4, thereby canceling the limitation on the sample tube 4.

[0029] The number of limiting plates 14 corresponds to the number of sample holders 3, which allows for simultaneous limiting of sample tubes 4 on multiple sample holders 3, thus improving work efficiency.

[0030] Reference Figure 1-7Each side of the limiting plate 14 is fixed with a sliding rod 13, and the surface of the adjusting column 9 is provided with a wedge groove 12 that fits the sliding rod 13. This ensures that the connection between the limiting plate 14 and the adjusting column 9 is firm and reliable. At the same time, when the limiting plate 14 is removed, the wedge groove 12 provides upward sliding space for the limiting plate 14 to slide down with the adjusting column 9, so as not to interfere with the rotation of the adjusting column 9, and not to affect the limiting of the sample tube 4.

[0031] It should be noted that the multiple limiting plates 14 can be wedge-shapedly engaged with the multiple wedge grooves 12 via the sliding rods 13, thereby simultaneously limiting the sample tubes 4 on multiple sample racks 3. During the centrifugation experiment, some samples may be processed in advance or need to be removed individually. Since the multiple limiting plates 14 can be used individually, the operator does not need to make large-scale adjustments to the limiting state of the sample tubes 4 on the entire centrifuge stage 2. The operator only needs to remove the corresponding limiting plate 14 from the wedge groove 12, which reduces unnecessary operation steps and time waste and improves the flexibility of operation.

[0032] Reference Figure 3 , 8 The top of the adjusting column 9 is threaded with a threaded cylinder 19. The bottom of the threaded cylinder 19 abuts against the top of the slide rod 13. The threaded cylinder 9 is used to limit and fix the position of the slide rod 13 and the limiting plate 14, thereby maintaining the stability of the limiting plate 14. When it is necessary to adjust the limiting state of the limiting plate 14, it is only necessary to turn the adjusting threaded cylinder 9. At the same time, if it is necessary to remove or install a new limiting plate 14, the threaded cylinder 9 is unscrewed, the limiting plate 14 is wedge-shaped and engaged with the wedge groove 12 through the slide rod 13, and then the threaded cylinder 9 is tightened.

[0033] It should be noted that the opening of the wedge groove 12 will not interfere with the downward pressing of the adjusting column 9.

[0034] Reference Figure 7 Two reinforcing rods 15 are fixed on one side of the limiting plate 14. The ends of the two reinforcing rods 15 away from the limiting plate 14 are simultaneously fixed to the ends of the sliding rod 13 away from the limiting plate 14, forming a stable triangular structure. This structure has extremely high stability and can enhance the connection strength between the limiting plate 14 and the sliding rod 13, making the limiting plate 14 less prone to deformation or damage during centrifugation and improving the reliability of the entire limiting structure.

[0035] Reference Figure 3 , 7 A support block 16 is fixed at the bottom of the slide rod 13. The bottom of the support block 16 is in contact with the top of the adjusting cylinder 5. The support block 16 provides bottom support for the slide rod 13. When the limiting plate 14 adjusts the limiting state, it will move together with the slide rod 13. The connection strength between the limiting plate 14 and the slide rod 13 is further enhanced in conjunction with the reinforcing rod 15.

[0036] Reference Figure 4-6 The top of the stop block 7 is provided with a scale 8, and the top of the limit block 10 is provided with a scale 11 corresponding to scale 8. Scale 11 is always collinear with scale 8, which makes it easier for the operator to observe the correspondence between scale 8 and scale 11 and accurately adjust the limit state of the limit plate 14.

[0037] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0038] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0039] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A centrifuge for easy positioning of sample tubes, comprising a centrifuge chamber (1), characterized in that: The centrifuge chamber (1) is equipped with a centrifuge stage (2) that rotates inside. The centrifuge stage (2) is circumferentially fixed with a plurality of sample racks (3) for placing sample tubes (4). The top of the centrifuge stage (2) is provided with a limiting plate (14) for limiting the sample tubes (4) and an adjustment component for adjusting the limiting state of the limiting plate (14). The number of limiting plates (14) corresponds to the number of sample racks (3). The plurality of limiting plates (14) can be used simultaneously or individually.

2. The centrifuge for facilitating sample tube positioning according to claim 1, characterized in that: The adjustment assembly includes an adjustment cylinder (5), a stop block (7), an adjustment column (9), a limiting block (10), a support plate (17), and a spring (18). The adjustment cylinder (5) is fixed to the top of the centrifuge table (2). Multiple limiting grooves (6) are provided around the top of the adjustment cylinder (5). Multiple stop blocks (7) are provided, and the multiple stop blocks (7) are respectively fixed to the top of the limiting grooves (6). The limiting block (10) is circumferentially fixed to the surface of the adjustment column (9). The limiting block (10) is inserted into the limiting groove (6). The top of the limiting block (10) abuts against the bottom of the stop block (7). The support plate (17) rotates at the bottom of the adjustment column (9). One end of the spring (18) is fixed to the bottom of the support plate (17), and the other end of the spring (18) is fixed to the top of the centrifuge table (2). The adjustment column (9) slides inside the adjustment cylinder (5), and the limiting plate (14) slides vertically on the adjustment column (9).

3. A centrifuge for facilitating sample tube positioning according to claim 2, characterized in that: Each side of the limiting plate (14) is fixed with a sliding rod (13), and the surface of the adjusting column (9) is provided with a wedge groove (12) that cooperates with the sliding rod (13).

4. A centrifuge for conveniently limiting sample tubes according to claim 2, characterized in that: The top of the adjusting column (9) is threaded with a threaded cylinder (19), and the bottom of the threaded cylinder (19) abuts against the top of the slide rod (13).

5. A centrifuge for facilitating sample tube positioning according to claim 3, characterized in that: Two reinforcing rods (15) are fixed on one side of the limiting plate (14), and the ends of the two reinforcing rods (15) away from the limiting plate (14) are simultaneously fixed to the ends of the sliding rod (13) away from the limiting plate (14).

6. A centrifuge for conveniently limiting sample tubes according to claim 3, characterized in that: The bottom of the slide bar (13) is fixed with a support block (16), and the bottom of the support block (16) is in contact with the top of the adjusting cylinder (5).

7. A centrifuge for facilitating sample tube positioning according to claim 2, characterized in that: The top of the stop block (7) is provided with a scale one (8), and the top of the limiting block (10) is provided with a scale two (11) corresponding to the scale one (8).

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