A mixing tube rack

Abstract

The utility model relates to test -tube rack technical field discloses a kind of mixed test -tube racks, including test -tube rack body and extrusion plate, the test -tube rack body includes the first fixed plate being equipped with a plurality of first through-orifice and the second fixed plate being equipped with a plurality of bottom support, second fixed plate is located below first fixed plate, and first through-orifice and bottom support position correspond, extrusion plate penetrates test -tube rack body lower part, extrusion plate includes extrusion part between first fixed plate and second fixed plate, and operating part, extrusion part is equipped with a plurality of extrusion mouth, extrusion part has the placement state of extrusion mouth and bottom support position correspondence and the extrusion state of extrusion mouth and bottom support misalignment, operating part drives extrusion part relative test -tube rack body sliding to make extrusion part switch between placement state and extrusion state. The mixed test -tube rack can carry out mixed uniformity to all test tubes in test -tube rack simultaneously, improves mixed uniformity efficiency, and can guarantee the mixed uniformity effect of each test tube consistent.

Description

Technical Field

[0001] This utility model relates to the field of test tube rack technology, and in particular to a mixing test tube rack. Background Technology

[0002] In routine clinical and research activities at hospitals, extensive testing is required on inpatients, outpatients, patients undergoing physical examinations, and research samples. Analyzing various indicators of the solutions within test tubes provides crucial references for disease diagnosis, treatment planning, and scientific research. Many tests require thorough mixing of the solutions within the test tubes before testing to ensure accurate results. Currently, mixing is typically achieved by squeezing the bottom of the test tube with fingers and shaking it. However, this method is cumbersome and lacks repeatability, especially with large sample volumes, resulting in extremely low operational efficiency. Furthermore, the force, frequency, and location of manual squeezing are highly subjective, easily leading to variations in the degree of mixing between different test tubes, thus affecting the reliability of the test results. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a mixing test tube rack that can simultaneously mix all test tubes in the rack, improving mixing efficiency and ensuring that the mixing effect of each test tube is consistent.

[0004] The specific technical solution of this utility model is as follows: a mixing test tube rack, comprising a test tube rack body and a squeezing plate. The test tube rack body includes a first fixing plate with a plurality of first openings and a second fixing plate with a plurality of base supports. The second fixing plate is located below the first fixing plate, and the first openings correspond to the positions of the base supports. The squeezing plate penetrates the lower part of the test tube rack body. The squeezing plate includes a squeezing part located between the first fixing plate and the second fixing plate, and an operating part extending outward from the outside of the test tube rack body. The squeezing part is provided with a plurality of squeezing ports. The squeezing part has a placement state in which the squeezing ports correspond to the positions of the base supports and a squeezing state in which the squeezing ports are misaligned with the base supports. The operating part drives the squeezing part to slide relative to the test tube rack body so that the squeezing part switches between the placement state and the squeezing state.

[0005] In the aforementioned mixing test tube rack, test tubes are fixed to the rack by a first fixing plate and a second fixing plate. A manual force is applied to the operating part, driving a squeezing plate to slide back and forth relative to the rack body. The squeezing part moves synchronously with the plate, continuously switching between a resting state and a squeezing state, constantly applying lateral squeezing to the lower part of the test tubes. This causes the solution inside the test tubes to shake due to the squeezing, achieving mixing. This invention, by having the squeezing plate slide relative to the rack body, can simultaneously mix all test tubes in the rack, eliminating the need for individual tube operation and significantly improving mixing efficiency. Simultaneously, because all test tubes experience the same squeezing force and the same position of application, it effectively avoids subjective differences in manual operation, ensuring a high degree of consistency in the mixing effect of each test tube, thereby improving the reliability of subsequent test results.

[0006] Optionally, the extrusion plate further includes a limiting part extending out of the test tube rack body. The limiting part is disposed opposite to the operating part. The limiting part is provided with a first abutting part. During the sliding process of the extrusion plate, the first abutting part abuts against the side of the test tube rack body facing the limiting part to restrict the extrusion plate from detaching from the test tube rack body.

[0007] In the above technical solution, when the extrusion plate slides towards the operating part, the first abutting part will abut against the side of the test tube rack body facing the limiting part, preventing the extrusion plate from continuing to slide, thereby effectively preventing the extrusion plate on the limiting part side from detaching from the test tube rack body as a whole due to excessive sliding, and avoiding the failure of the mixing function due to detachment.

[0008] Optionally, the extrusion section is provided with a second abutment on the side near the limiting section. The second abutment abuts against the side of the test tube rack body away from the limiting section during the sliding of the extrusion plate. The first abutment and the second abutment cooperate to limit the sliding distance of the extrusion plate.

[0009] In the above technical solution, by setting a second abutment on the side of the extrusion section near the limiting section, a bidirectional limiting structure is formed with the first abutment on the limiting section along the sliding direction. By limiting the extreme positions in two directions, the sliding range of the extrusion section is ensured to match the switching requirements of the "placement state" and "extrusion state", and the sliding stroke is precisely controlled. The fixed sliding stroke keeps the force of each extrusion and the degree of test tube deformation stable, improving the mixing efficiency. In addition, the extrusion plate will not detach from the test tube rack body, resulting in high structural stability.

[0010] Optionally, an elastic element is provided between the first abutting part and the side of the test tube rack body facing the limiting part. The elastic element pre-tightens the first abutting part at a position away from the test tube rack body and puts the squeezing part in a placed state.

[0011] In the above technical solution, when the operator applies force to the operating part to slide the extrusion plate into the extrusion state, and then removes the external force, the pre-tightening force of the elastic element will drive the first abutment part to reset in the direction away from the test tube rack body, causing the extrusion plate to slide as a whole, so that the extrusion part automatically switches from the extrusion state back to the placement state. This process does not require additional manual operation to reset, especially when mixing repeatedly, which can reduce manual operation steps, reduce labor intensity, and further improve operating efficiency.

[0012] Optionally, the test tube rack body is provided with a fixed handle on the side near the operating part. The operating part includes an operating part body and a handle. The handle is provided with a hand-held part. The handle is hinged to the operating part body through a first hinge axis, and the handle is hinged to the fixed handle through a second hinge axis. The distance A between the hand-held part and the first hinge axis is smaller than the distance B between the hand-held part and the second hinge axis.

[0013] In the above technical solution, the structure forms a force-saving lever through a double hinge design. With the second hinge shaft as the fulcrum, the lever arm (spacing B) at the force-applying end of the hand part is greater than the lever arm (spacing A) at the force-receiving end of the operating part body. This can significantly reduce the force required to drive the extrusion plate to slide. At the same time, the double hinge constraint makes the swing amplitude of the hand part smoothly converted into the sliding stroke of the extrusion plate, improving the ease of operation.

[0014] Optionally, the operating part is provided with an opening for fingers to pass through, and the test tube rack body is provided with a fixed handle above the operating part. The fixed handle is provided with a cavity for the hand to pass through, and the cavity corresponds to the position of the opening.

[0015] In the above technical solution, the hand can exert force stably with the support of the fixed handle, which improves the convenience of the mixing operation.

[0016] Optionally, the test tube rack body further includes a third fixing plate disposed between the first fixing plate and the second fixing plate. The third fixing plate is provided with a plurality of third openings, the third openings corresponding to the positions of the first openings. The third fixing plate is disposed close to the second fixing plate, and the squeezing part is disposed above the third fixing plate and fits against the third fixing plate.

[0017] In the above technical solution, the third fixing plate is positioned close to the second fixing plate, and its third opening corresponds to the first opening, forming an additional radial limit on the lower part of the test tube, thereby enhancing the constraint stability of the test tube in the squeezing area. At the same time, the squeezing part slides against the upper part of the third fixing plate, which provides a stable support surface for it, preventing deformation or tilting of the squeezing part when force is applied, ensuring that the squeezing force is accurately applied to the test tube, and making the mixing effect more stable. In addition, because the squeezing part is located at a lower position close to the second fixing plate, it can be close to the solution concentration area at the bottom of the test tube, and the squeezing directly causes the solution to generate effective shaking, improving the mixing efficiency.

[0018] Optionally, the extrusion section is positioned close to the second fixing plate.

[0019] In the above technical solution, the extrusion part is located close to the second fixed plate, that is, the extrusion part is close to the bottom of the test tube. When extruding, it can directly act on the solution concentration area at the bottom of the test tube. When extruding, it directly drives the solution to generate effective shaking, thereby improving the mixing efficiency. Low-position extrusion can be achieved by matching the position of the extrusion part with the second fixed plate, which reduces the number of parts, simplifies the overall assembly process, and reduces production and maintenance costs.

[0020] Optionally, the extrusion port includes a test tube through-hole and an arc surface for extruding the test tube. The arc surface extends from the test tube through-hole along the sliding direction of the extrusion plate so that, under the extrusion state, the arc surface abuts against the outer wall of the test tube to form lateral extrusion on the test tube.

[0021] In the above technical solution, when placed, the test tube can pass through the test tube through-hole and be placed on the base. When the extrusion plate slides to the extrusion state, the arc surface gradually approaches the test tube as it slides. Since the arc surface extends along the sliding direction and matches the curvature of the test tube, it can form surface contact with the test tube, forming a uniform lateral extrusion on the test tube. The extrusion effect is good and avoids damage caused by local stress concentration in the test tube. In addition, compared with a circular extrusion hole, the above structure provides a larger extrusion activity space while ensuring the extrusion effect. It can accommodate test tubes with different diameter deviations and avoid jamming or excessive instantaneous force due to space limitation.

[0022] Optionally, the arc surface is provided with a downwardly extending first protrusion, and the third port of the third fixing plate is provided with an upwardly extending third protrusion that is opposite to the first protrusion. The end face of the first protrusion is flush with the bottom surface of the third fixing plate, and the end face of the third protrusion is flush with the top surface of the extrusion part; or, the arc surface is provided with a downwardly extending first protrusion, and the bottom support of the second fixing plate is provided with an upwardly extending second protrusion that is opposite to the first protrusion. The end face of the first protrusion is flush with the bottom surface of the second fixing plate, and the end face of the second protrusion is flush with the top surface of the extrusion part.

[0023] In the above technical solution, under the extrusion state, the first protrusion actively applies force to the test tube along the arc surface, while the second or third protrusion forms a reverse limiting support. The two work together to form a bi-directional synchronous extrusion on the test tube. This bi-directional force can drive the test tube to produce symmetrical deformation, while increasing the extrusion area with the test tube, thereby improving the mixing efficiency and uniformity. In addition, the reverse support of the second or third protrusion can constrain the deformation range of the test tube, preventing the test tube from being damaged or permanently deformed due to excessive extrusion.

[0024] Compared with the prior art, the present invention has at least the following advantages: The present invention can simultaneously mix all test tubes in the test tube rack by sliding the squeezing plate relative to the test tube rack body, eliminating the need for tube-by-tube operation and significantly improving mixing efficiency; at the same time, since all test tubes are subjected to the same squeezing force and the same position of action, the subjective differences of manual operation are effectively avoided, ensuring that the mixing effect of each test tube is highly consistent, thereby improving the reliability of subsequent test results. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the first structure of this utility model; Figure 2 This is a cross-sectional view of the first structure of this utility model; Figure 3 This is a schematic diagram of the second structure of this utility model; Figure 4 This is a schematic diagram of the extrusion plate structure; Figure 5 This is a cross-sectional view of the second structure of this utility model; Figure 6 yes Figure 5 A magnified view of a section at point A in the middle; Figure 7 This is a side view of the third structure of this utility model; Figure 8 This is a schematic diagram of the fourth structure of this utility model.

[0026] The attached figures are labeled as follows: 1. Test tube rack body; 2. First fixing plate; 3. Second fixing plate; 4. Squeezing part; 5. Operating part; 6. Limiting part; 7. First abutting part; 8. Squeezing port; 9. Second abutting part; 10. Fixed handle; 11. Third fixing plate; 12. First opening; 13. Third opening; 14. Base; 15. Opening; 16. Elastic element; 18. Test tube through-hole; 19. Arc surface; 20. First protrusion; 21. Third protrusion; 22. Operating part body; 23. Handle; 24. Handheld part; 25. First hinge shaft; 26. Second hinge shaft. Detailed Implementation

[0027] The present invention will be further described below with reference to embodiments. Unless otherwise specified, all devices, connection structures, and methods involved in this invention are known in the art.

[0028] Example 1 Reference Figures 1 to 8 As shown, this utility model provides a mixing test tube rack, including a test tube rack body 1 and a squeezing plate. The test tube rack body 1 includes a first fixing plate 2 with a plurality of first openings 12 and a second fixing plate 3 with a plurality of base supports 14. The second fixing plate 3 is located below the first fixing plate 2. The two are fixedly connected by a support structure to form a stable frame. The first openings 12 correspond to the base supports 14. The squeezing plate passes through the lower part of the test tube rack body 1. The squeezing plate includes a squeezing part 4 located between the first fixing plate 2 and the second fixing plate 3, and an operating part 5 extending out of the outside of the test tube rack body 1. The squeezing part 4 is provided with a plurality of squeezing ports 8. The squeezing part 4 has a placement state in which the squeezing ports 8 correspond to the base supports 14 and a squeezing state in which the squeezing ports 8 are misaligned with the base supports 14. The operating part 5 drives the squeezing part 4 to slide relative to the test tube rack body 1 so that the squeezing part 4 switches between the placement state and the squeezing state. The test tube is a deformable elastic test tube. The diameters of the first opening 12 and the base 14 are slightly larger than the diameter of the test tube. When the test tube is placed, it can smoothly pass through the first opening 12 and sit on the base 14. Stable placement is achieved by the slight contact between the inner wall of the opening and the edge of the base 14. At the same time, the size of the extrusion port 8 is greater than or equal to the diameter of the base 14, providing sufficient space for the test tube to pass through and ensuring that there is no interference between the test tube and the extrusion port 8 when it is placed. Preferably, the size of the extrusion port 8 is larger than the diameter of the base 14, so as to reserve sufficient margin for the movement of the arc surface 19 when the extrusion plate slides.

[0029] In the aforementioned mixing test tube rack, test tubes are fixed to the rack by the first fixing plate 2 and the second fixing plate 3. A manual force is applied to the operating part 5 to drive the squeezing plate to slide back and forth relative to the test tube rack body 1. The squeezing part 4 moves synchronously with it, continuously switching between a placement state and a squeezing state, constantly applying lateral squeezing to the lower part of the test tubes. This causes the solution inside the test tubes to shake due to the squeezing, achieving mixing. This invention, by having the squeezing plate slide relative to the test tube rack body 1, can simultaneously mix all test tubes in the rack, eliminating the need for individual tube operation and significantly improving mixing efficiency. Simultaneously, because all test tubes experience the same squeezing force and the same position of application, it effectively avoids subjective differences in manual operation, ensuring a high degree of consistency in the mixing effect of each test tube, thereby improving the reliability of subsequent test results.

[0030] To improve the convenience of the mixing operation, the extrusion plate in this embodiment also includes a limiting part 6 extending outward from the test tube rack body 1. The limiting part 6 is disposed opposite to the operating part 5, and the limiting part 6 is provided with a first abutting part 7. During the sliding of the extrusion plate, the first abutting part 7 abuts against the side of the test tube rack body 1 facing the limiting part 6 to prevent the extrusion plate from detaching from the test tube rack body 1. When the extrusion plate slides towards the operating part 5, the first abutting part 7 abuts against the side of the test tube rack body 1 facing the limiting part 6, preventing the extrusion plate from continuing to slide, thereby effectively preventing the extrusion plate on the limiting part 6 side from detaching from the test tube rack body 1 due to excessive sliding, and avoiding the failure of the mixing function due to detachment.

[0031] Furthermore, a second abutment 9 is provided on the side of the extrusion section 4 near the limiting section 6. The second abutment 9 abuts against the side of the test tube rack body 1 away from the limiting section 6 during the sliding of the extrusion plate. The first abutment 7 and the second abutment 9 cooperate to limit the sliding distance of the extrusion plate. By providing the second abutment 9 on the side of the extrusion section 4 near the limiting section 6, a bidirectional limiting structure is formed with the first abutment 7 on the limiting section 6 along the sliding direction. By limiting the extreme positions in two directions, it is ensured that the sliding range of the extrusion section 4 matches the switching requirements of the "placement state" and the "extrusion state", and the sliding stroke is precisely controlled. The fixed sliding stroke keeps the force of each extrusion and the degree of test tube deformation stable, improving the mixing efficiency. In addition, the extrusion plate will not detach from the test tube rack body 1, resulting in high structural stability.

[0032] Furthermore, an elastic element 16 is provided between the first abutment part 7 and the side of the test tube rack body 1 facing the limiting part 6. The elastic element 16 pre-tightens the first abutment part 7 to a position away from the test tube rack body 1 and keeps the squeezing part 4 in a placed state. When the operator applies force to the operating part 5 to slide the squeezing plate to the squeezing state, and then removes the external force, the pre-tightening force of the elastic element 16 will drive the first abutment part 7 to reset in the direction away from the test tube rack body 1, causing the squeezing plate to slide as a whole, so that the squeezing part 4 automatically switches from the squeezing state back to the placed state. This process does not require additional manual operation to reset, which can reduce manual operation steps, reduce labor intensity, and further improve operating efficiency, especially when mixing repeatedly.

[0033] The mixing process of the above-mentioned mixing test tube rack is as follows: multiple test tubes are placed on the test tube rack body 1, and force is applied manually to the operating part 5 to drive the extrusion plate to move along the sliding direction. The extrusion part 4 slides synchronously to the extrusion state, and the edge of the extrusion port 8 extrudes the lower part of the test tube, causing the internal solution to generate convection and vortex due to the deformation of the test tube. During the sliding process, the second abutting part 9 abuts against the test tube rack body 1 to limit the maximum extrusion stroke and ensure that the test tube deformation is appropriate. After the external force is removed, the pre-tightening force of the elastic element 16 drives the extrusion plate to reset, and the first abutting part 7 abuts against the test tube rack body 1 to limit the reset limit, so that the extrusion part 4 returns to the placement state. By repeatedly applying and releasing external force, the extrusion plate drives the extrusion part 4 to switch back and forth between the placement and extrusion states, so as to achieve synchronous and uniform mixing of all test tubes. After the operation is completed, the test tubes can be directly removed.

[0034] Example 2 Based on Example 1, such as Figure 1 As shown, this utility model provides a mixing test tube rack. The test tube rack body 1 includes a first fixing plate 2, a third fixing plate 11 and a second fixing plate 3 arranged from top to bottom. The first fixing plate 2 is provided with a plurality of first openings 12, the third fixing plate 11 is provided with a plurality of third openings 13, and the second fixing plate 3 is provided with a plurality of base supports 14. The positions of the first openings 12, the third openings 13 and the base supports 14 correspond one-to-one. The third fixing plate 11 is arranged close to the second fixing plate 3, and the squeezing part 4 is arranged above the third fixing plate 11 and fits against the third fixing plate 11. The third fixing plate 11 is positioned close to the second fixing plate 3, with a gap between them. The third opening 13 corresponds to the first opening 12, forming an additional radial limit on the lower part of the test tube, thus strengthening the constraint stability of the test tube in the squeezing area. At the same time, the squeezing part 4 slides against the upper part of the third fixing plate 11, which provides a stable support surface for it, preventing deformation or tilting of the squeezing part 4 when force is applied, ensuring that the squeezing force is accurately applied to the test tube, and making the mixing effect more stable. In addition, because the squeezing part 4 is located at a lower position close to the second fixing plate 3, it can be close to the solution concentration area at the bottom of the test tube, and directly drive the solution to generate effective shaking when squeezing, thereby improving the mixing efficiency.

[0035] In another embodiment, such as Figure 7 As shown, the test tube rack body 1 includes only a first fixing plate 2 and a second fixing plate 3 arranged from top to bottom, with the squeezing part 4 positioned close to the second fixing plate 3. "Close to" means that there is a small gap between the squeezing part 4 and the second fixing plate 3 to avoid sliding friction interference; or, the two are directly attached, using the surface of the second fixing plate 3 as a sliding support surface. The squeezing part 4 being positioned close to the second fixing plate 3 means that the squeezing part 4 is near the bottom of the test tube, allowing it to directly act on the concentrated solution area at the bottom of the test tube during squeezing. This directly causes the solution to slosh effectively, improving mixing efficiency. The positioning of the squeezing part 4 and the second fixing plate 3 enables low-level squeezing, reducing the number of parts, simplifying the overall assembly process, and lowering production and maintenance costs.

[0036] In this embodiment, as shown in Figures 1 and 2, the operating part 5 is provided with an opening 15 for fingers to pass through. The test tube rack body 1 is provided with a fixed handle 10 above the operating part 5. The fixed handle 10 has a cavity for the hand to pass through, and the cavity corresponds to the position of the opening 15. During operation, the hand is inserted into the cavity of the fixed handle 10 to hold the handle, and the fingers simultaneously pass through the opening 15 of the operating part 5 and apply force to drive the extrusion plate to slide. With the support of the fixed handle 10, the force applied by the hand is more stable, effectively reducing the difficulty of operation and further improving the convenience of the mixing operation.

[0037] In another embodiment, such as Figure 8 As shown, a fixed handle 10 is provided on the side of the test tube rack body 1 near the operating part 5. The operating part 5 includes an operating part body 22 and a handle 23. The handle 23 has a hand-held part 24. The handle 23 is hinged to the operating part body 22 through a first hinge axis 25, and the handle 23 is hinged to the fixed handle 10 through a second hinge axis 26. The distance A between the hand-held part 24 and the first hinge axis 25 is smaller than the distance B between the hand-held part 24 and the second hinge axis 26. This structure forms a force-saving lever through a double hinged lever arm design. With the second hinge axis 26 as the fulcrum, the lever arm (distance B) at the force-applying end of the hand-held part 24 is larger than the lever arm (distance A) at the force-receiving end of the operating part body 22. This can significantly reduce the force required to drive the extrusion plate to slide. At the same time, the double hinge constraint smoothly converts the swing amplitude of the hand-held part into the sliding stroke of the extrusion plate, improving the ease of operation.

[0038] In this utility model, the shape of the extrusion port 8 on the extrusion plate is not specifically limited, as long as it can effectively abut against the outer wall of the flexible test tube and apply lateral extrusion force during the sliding process of the extrusion plate. For example, conventional or irregular structures such as circular, arc-shaped, and polygonal shapes all fall within the protection scope of this utility model.

[0039] As an example, such as Figure 1As shown, the extrusion port 8 is circular, and its position corresponds one-to-one with the first through port 12, the third through port 13, and the base 14, with all four having the same diameter. This design simplifies the processing of the extrusion plate: the circular port is easy to form by drilling or stamping, the uniform diameter reduces dimensional mismatch errors, lowers processing and production costs, and ensures smooth insertion of test tubes.

[0040] As another example, as shown in Figures 3 and 4, the extrusion port 8 includes a test tube passage port 18 and an arc surface 19 for extruding the test tube. The curvature of the arc surface 19 faces the limiting part 6 so that it can form a surface contact with the outer wall of the test tube and apply lateral extrusion during the extrusion state. The test tube passage port 18 extends along the width direction of the first fixing plate 2, and multiple arc surfaces 19 are connected to the test tube passage port 18. The number of arc surfaces 19 corresponds to the number of first openings 12 provided in the width direction of the first fixing plate 2. It can be understood that the curvature of the arc surface 19 can also face the operating part 5, that is, the arc surface 19 can bend and extend from the test tube passage port 18 along the sliding direction of the extrusion plate. As long as it can form an effective contact and extrusion with the outer wall of the test tube when the extrusion plate slides, it meets the design requirements of this utility model. In the placement state, the test tube can pass through the test tube through-hole 18 and be placed on the base 14. When the extrusion plate slides to the extrusion state, the arc surface 19 gradually approaches the test tube as it slides. Since the arc surface 19 extends along the sliding direction and matches the curvature of the test tube, it can form a surface contact with the test tube, forming a uniform lateral extrusion on the test tube. The extrusion effect is good and avoids damage caused by local stress concentration in the test tube. In addition, compared with the circular extrusion hole 8, the above structure provides a larger extrusion activity space while ensuring the extrusion effect. It can accommodate test tubes with different diameter deviations and avoid jamming or excessive instantaneous force due to space limitation.

[0041] This example further illustrates the case where the test tube rack body 1 includes a first fixing plate 2, a third fixing plate 11, and a second fixing plate 3 arranged from top to bottom, and the pressing part 4 is in contact with the top surface of the third fixing plate 11. Figure 5 and Figure 6As shown, the arc surface 19 is provided with a downwardly extending first protrusion 20, and the third opening 13 of the third fixing plate 11 is provided with an upwardly extending third protrusion 21 that is opposite to the first protrusion 20. The end face of the first protrusion 20 is flush with the bottom surface of the third fixing plate 11, and the end face of the third protrusion 21 is flush with the top surface of the extrusion part 4. When the test tube rack body 1 only includes a first fixing plate 2 and a second fixing plate 3 arranged from top to bottom and the extrusion part 4 is arranged close to the second fixing plate 3, the arc surface 19 is provided with a downwardly extending first protrusion 20, and the bottom support 14 of the second fixing plate 3 is provided with an upwardly extending second protrusion that is opposite to the first protrusion 20. The end face of the first protrusion 20 is flush with the bottom surface of the second fixing plate 3, and the end face of the second protrusion is flush with the top surface of the extrusion part 4. Under compression, the first protrusion 20 actively applies force to the test tube along with the arc surface 19, while the second or third protrusion 21 forms a reverse limiting support. The two work together to create simultaneous compression on both sides of the test tube. This bidirectional force drives symmetrical deformation of the test tube, while simultaneously increasing the compression area and improving mixing efficiency and uniformity. Furthermore, the reverse support of the second or third protrusion 21 constrains the deformation range of the test tube, preventing damage or permanent deformation due to excessive compression. It should be noted that the first protrusion 20 can be formed by extending downwards from a portion of the arc surface 19, i.e., only a local protrusion of the arc surface 19, or it can be formed by extending downwards from the entire arc surface 19, i.e., the entire arc surface 19 protrudes simultaneously. In addition, the shape of the first protrusion 20 and the second or third protrusion 21 can be configured to form a continuous annular structure that fully conforms to the test tube, or a segmented compression structure that conforms to the test tube. Both configurations achieve effective compression of the test tube through bidirectional synergy, ensuring uniform deformation and mixing effect.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, alterations, or equivalent structural transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A mixing test tube rack, characterized in that, The test tube rack body (1) includes a test tube rack body (1) and a squeezing plate. The test tube rack body (1) includes a first fixing plate (2) with a plurality of first openings (12) and a second fixing plate (3) with a plurality of base supports (14). The second fixing plate (3) is located below the first fixing plate (2), and the first openings (12) correspond to the base supports (14). The squeezing plate passes through the lower part of the test tube rack body (1). The squeezing plate includes a squeezing part (4) located between the first fixing plate (2) and the second fixing plate (3), and an operating part (5) extending out of the outside of the test tube rack body (1). The squeezing part (4) is provided with a plurality of squeezing ports (8). The squeezing part (4) has a placement state in which the squeezing ports (8) correspond to the base supports (14) and a squeezing state in which the squeezing ports (8) are misaligned with the base supports (14). The operating part (5) drives the squeezing part (4) to slide relative to the test tube rack body (1) so that the squeezing part (4) switches between the placement state and the squeezing state.

2. The mixing test tube rack according to claim 1, characterized in that, The extrusion plate also includes a limiting part (6) extending out of the outside of the test tube rack body (1). The limiting part (6) is arranged opposite to the operation part (5). The limiting part (6) is provided with a first abutting part (7). The first abutting part (7) abuts against the side of the test tube rack body (1) facing the limiting part (6) during the sliding process of the extrusion plate, so as to restrict the extrusion plate from leaving the test tube rack body (1).

3. A mixing test tube rack according to claim 2, characterized in that, The extrusion part (4) is provided with a second abutment part (9) on the side near the limiting part (6). The second abutment part (9) abuts against the side of the test tube rack body (1) away from the limiting part (6) during the sliding of the extrusion plate. The first abutment part (7) and the second abutment part (9) cooperate to limit the sliding distance of the extrusion plate.

4. A mixing test tube rack according to claim 2, characterized in that, An elastic member (16) is provided between the first abutting part (7) and the side of the test tube rack body (1) facing the limiting part (6). The elastic member (16) pre-tightens the first abutting part (7) to a position away from the test tube rack body (1) and puts the squeezing part (4) in a placed state.

5. A mixing test tube rack according to claim 1, characterized in that, The test tube rack body (1) is provided with a fixed handle (10) on the side near the operation part (5). The operation part (5) includes an operation part body (22) and a handle (23). The handle (23) is provided with a hand-holding part (24). The handle (23) and the operation part body (22) are hinged through a first hinge axis (25). The handle (23) and the fixed handle (10) are hinged through a second hinge axis (26). The distance A between the hand-holding part (24) and the first hinge axis (25) is smaller than the distance B between the hand-holding part (24) and the second hinge axis (26).

6. A mixing test tube rack according to claim 1, characterized in that, The operating part (5) is provided with an opening (15) for fingers to pass through. The test tube rack body (1) is provided with a fixed handle (10) above the operating part (5). The fixed handle (10) is provided with a cavity for the hand to pass through, and the cavity is positioned corresponding to the opening (15).

7. A mixing test tube rack according to claim 1, characterized in that, The test tube rack body (1) also includes a third fixing plate (11) located between the first fixing plate (2) and the second fixing plate (3). The third fixing plate (11) is provided with a plurality of third openings (13), the third openings (13) are corresponding to the positions of the first openings (12), the third fixing plate (11) is located close to the second fixing plate (3), and the squeezing part (4) is located above the third fixing plate (11) and is in contact with the third fixing plate (11).

8. A mixing test tube rack according to claim 1, characterized in that, The extrusion section (4) is positioned close to the second fixing plate (3).

9. A mixing test tube rack according to claim 7 or 8, characterized in that, The extrusion port (8) includes a test tube through-hole (18) and an arc surface (19) for extruding the test tube. The arc surface (19) extends from the test tube through-hole (18) along the sliding direction of the extrusion plate so that, under the extrusion state, the arc surface (19) contacts the outer wall of the test tube to form a lateral extrusion on the test tube.

10. A mixing test tube rack according to claim 9, characterized in that, The arc surface (19) is provided with a downwardly extending first protrusion (20), and the third opening (13) of the third fixing plate (11) is provided with an upwardly extending third protrusion (21) that is opposite to the first protrusion (20). The end face of the first protrusion (20) is flush with the bottom surface of the third fixing plate (11), and the end face of the third protrusion (21) is flush with the top surface of the extrusion part (4); or, the arc surface (19) is provided with a downwardly extending first protrusion (20), and the bottom support (14) of the second fixing plate (3) is provided with an upwardly extending second protrusion that is opposite to the first protrusion (20). The end face of the first protrusion (20) is flush with the bottom surface of the second fixing plate (3), and the end face of the second protrusion is flush with the top surface of the extrusion part (4).

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