An adaptive ice-water bath sample holder

Abstract

The application discloses a self-adaptive ice-water bath sample rack and relates to the technical field of laboratory equipment. The self-adaptive ice-water bath sample rack comprises a supporting frame, a first partition plate and a second partition plate, the supporting frame is in a U-shaped structure formed by one bottom plate and two side plates, the first partition plate is slidably connected between the two side plates and is fastened through fasteners, a first through hole is formed in the first partition plate, a plurality of first elastic valves are arranged around the first through hole, the plurality of first elastic valves enclose a first clamping space, the second partition plate is installed between the two side plates and is located between the first partition plate and the bottom plate, a second through hole is formed in the second partition plate, a plurality of second elastic valves are arranged around the second through hole, and the plurality of second elastic valves enclose a second clamping space; wherein the inner diameter of the first clamping space is different from the inner diameter of the second clamping space, so that the first elastic valves and the second elastic valves can be cooperatively matched to self-adaptively clamp sample tubes with different pipe diameters.

Description

Technical Field

[0001] This invention relates to the field of laboratory equipment technology, specifically to an adaptive ice-water bath sample rack for fixing sample tubes of different sizes in an ice-water bath environment. Background Technology

[0002] In biomedical experiments, clinical testing, and drug development, it is frequently necessary to cryopreserve or perform ice-water bath treatments on collected blood, body fluids, or cell samples. Sample tubes (such as centrifuge tubes, blood collection tubes, and cryopreservation tubes) are commonly used containers for holding samples and need to be kept stable and fixed in an ice-water bath environment to ensure uniform cooling, prevent cross-contamination, and facilitate experimental operations. Currently, commonly used sample tube racks in laboratories typically employ a fixed-size hole design. These racks are generally made of plastic or metal and have multiple circular through-holes with diameters matching the outer diameter of standard sample tubes. During use, the sample tube is inserted into the hole, and fixation is achieved through friction or clearance between the hole wall and the tube wall. However, existing sample tube racks have the following technical problems in practical use:

[0003] First, the diverse range of sample tube sizes leads to poor compatibility. Laboratories commonly use a wide variety of sample tube sizes, such as 2mL centrifuge tubes, 5mL blood collection tubes, and 1.5mL cryopreservation tubes. The outer diameter of different sizes varies significantly. Even tubes of the same size can differ in outer diameter due to manufacturing tolerances or differences between brands. Furthermore, labels are often affixed to the surface of sample tubes, and the thickness of these labels further increases the outer diameter. Traditional fixed-size orifice openings cannot flexibly accommodate these dimensional variations, resulting in either openings that are too loose, causing the sample tube to wobble or even tip over in an ice-water bath, or openings that are too tight, making it difficult to insert or remove the sample tube, thus affecting operational efficiency.

[0004] Second, lightweight sample tubes are prone to floating in an ice-water bath. Sample tubes are subject to buoyancy in an ice-water bath, especially smaller tubes (such as 1.5 mL tubes). Their light weight makes them more susceptible to buoyancy, causing them to easily float or even detach from the well. This can lead to tube tilting, sample leakage, or cross-contamination between different tubes, severely affecting the accuracy and safety of experimental results.

[0005] Third, the labels are easily damaged. In existing sample tube racks, the contact between the sample tubes and the well walls is mostly rigid. Repeated insertion and removal can easily scratch the paper or film labels on the surface of the sample tubes, resulting in label wear, blurred text, or even unreadable barcodes, which brings difficulties to sample traceability and management.

[0006] Therefore, how to provide an ice-water bath sample rack that can adaptively hold sample tubes of different diameters, effectively prevent sample tubes from floating, and protect the integrity of labels is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] In view of this, the present invention provides an adaptive ice-water bath sample rack, which aims to solve the above-mentioned technical problems.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An adaptive ice-water bath sample rack, comprising: The support frame is a U-shaped structure consisting of a base plate and two side plates; The first partition is slidably connected between the two side plates and fastened by fasteners. The first partition has a first through hole and a plurality of first elastic valves arranged in a ring within the first through hole. The plurality of first elastic valves form a first clamping space. The second partition is installed between the two side plates and between the first partition and the bottom plate; the second partition has a second through hole, and the second through hole has a plurality of second elastic valves arranged in a ring, the plurality of second elastic valves forming a second clamping space; The inner diameter of the first clamping space is different from that of the second clamping space, so that the first elastic valve and the second elastic valve can cooperate to adaptively clamp sample tubes of different diameters.

[0009] Through the above technical solution, this invention discloses an adaptive ice-water bath sample holder. By coordinating two clamping spaces with different inner diameters, it can automatically adapt to sample tubes of different outer diameters without the need for replacement parts or manual adjustment, effectively solving the problem of poor adaptability of traditional fixed-position sample holders. Two layers of elastic valves form two-point support in the longitudinal direction, applying radial clamping force to the sample tube, keeping it vertically stable in the ice-water bath and preventing shaking and tilting. The flexible contact of the elastic valves replaces the rigid contact of the traditional orifice wall, avoiding scratches or damage to the sample tube surface. The sliding connection of the first partition provides a structural basis for subsequent adjustment of the adaptability of sample tubes of different lengths. The integrated U-shaped structure provides a stable support base, ensuring the reliability of the multi-layer clamping structure.

[0010] Preferably, in the aforementioned adaptive ice-water bath sample holder, the inner diameter of the first clamping space is larger than the inner diameter of the second clamping space. This inner diameter configuration ensures that each of the two clamping spaces is responsible for sample tubes of different sizes, with a clear division of labor. Larger sample tubes first pass through the upper first clamping space. Because the inner diameter of the first clamping space is larger and matches the outer diameter of the large sample tube, the first elastic valve provides primary clamping for the large sample tube. When the large sample tube continues downward through the lower second clamping space, because the inner diameter of the second clamping space is smaller, the second elastic valve is compressed and unfolds downward to make way for it. When a smaller sample tube passes through the upper first clamping space, because the inner diameter of the first clamping space is larger, the first elastic valve only guides the smaller sample tube and does not provide strong clamping. When the smaller sample tube continues downward into the lower second clamping space, because the inner diameter of the second clamping space is smaller and matches the outer diameter of the smaller sample tube, the second elastic valve provides primary clamping for the smaller sample tube.

[0011] Preferably, in the above-mentioned adaptive ice-water bath sample holder, the contact surfaces of the first elastic valve, the second elastic valve, and the sample tube are rounded and chamfered. The rounded and chamfered structure ensures a smooth transition between the valve and the sample tube, preventing sharp edges from scratching the paper or film label; the rounded surface also prevents scratch damage to the label.

[0012] Preferably, in the above-mentioned adaptive ice-water bath sample holder, the bottom plate is provided with multiple limiting grooves corresponding to the second through holes. The limiting grooves limit the bottom of the sample tube, so that even if the sample tube is subjected to the buoyancy of the ice-water bath, the bottom is restricted in the groove and cannot float, effectively solving the problem of lightweight sample tubes easily floating.

[0013] Preferably, in the aforementioned adaptive ice-water bath sample holder, the limiting groove includes a conical hole and a conical support step arranged around the conical hole. The conical hole is suitable for pointed-bottom sample tubes or small-sized sample tubes, while the conical support step is suitable for round-bottom sample tubes or large-sized sample tubes; the same hole position can simultaneously support pointed-bottom and round-bottom or different-sized sample tubes, eliminating the need for laboratory personnel to select different sample holders based on tube type, greatly improving ease of use.

[0014] Preferably, in the aforementioned adaptive ice-water bath sample holder, the top diameter of the conical support step is larger than the bottom diameter, and its inner wall has a third elastic valve arranged around it. The third elastic valve is arranged around the inner wall of the conical support step. When the sample tube is inserted into place, its bottom contacts the third elastic valve. Due to the elasticity of the valve, it can adapt to the specific shape of the sample tube's bottom (pointed bottom, round bottom, or flat bottom), flexibly wrapping the tube bottom from all sides and applying a slight radial clamping force. Working in conjunction with the upper and middle layers of elastic valves, it achieves flexible clamping of the sample tube from top to bottom, enhancing the sample holder's adaptability to sample tubes of different diameters, lengths, and bottom shapes. Simultaneously, it effectively solves the problem of lightweight sample tubes easily floating in an ice-water bath.

[0015] Preferably, in the aforementioned adaptive ice-water bath sample holder, the base plate has multiple drainage holes. When the sample tube is inserted, air and water in the limiting groove can be quickly discharged through the drainage holes, preventing the formation of air or water cushions that could cause the tube to bounce or fail to be inserted to the bottom, ensuring that the sample tube can smoothly reach the predetermined depth. The drainage holes balance the water pressure inside and outside the limiting groove, preventing the additional buoyancy generated by water accumulation in the groove from pushing the sample tube upwards, thus achieving an anti-floating effect together with the limiting groove.

[0016] Preferably, in the aforementioned adaptive ice-water bath sample holder, both side plates have grooves on their inner sidewalls, and multiple axially arranged mounting holes are provided on their outer sidewalls corresponding to the grooves. The two sides of the first partition have protrusions that mate with the grooves, and the fasteners pass through the mounting holes and are threadedly connected to the protrusions. The multiple axially arranged mounting holes allow the first partition to be fixed at different heights, thereby adjusting the longitudinal distance between the first and second partitions to accommodate sample tubes of different lengths.

[0017] As can be seen from the above technical solution, compared with the prior art, the present invention discloses an adaptive ice-water bath sample rack, which has the following beneficial effects: 1. This invention constructs a clamping structure capable of adaptively holding sample tubes of different diameters by setting up two layers of elastic valves with different inner diameters. When a large-diameter sample tube is inserted, the upper first elastic valve with a larger inner diameter provides the main clamping, while the lower second elastic valve with a smaller inner diameter is squeezed downwards to make way. When a small-diameter sample tube is inserted, the upper first elastic valve acts as a guide, while the lower second elastic valve provides the main clamping. This coordinated mechanism of clamping the large tube on top and the small tube on the bottom allows for the stable clamping of sample tubes of various specifications at the same hole position, solving the problem of poor adaptability of traditional fixed-hole sample holders. At the same time, the limiting groove on the bottom plate and the third elastic valve inside it flexibly wrap the bottom of the sample tube, and together with the drainage hole, eliminates insertion resistance, effectively preventing lightweight sample tubes from floating or falling out due to buoyancy in the ice-water bath, ensuring the relative stability of the sample position during the cooling process.

[0018] 2. The contact surface between the elastic valve and the sample tube in this invention adopts a rounded chamfer design, which avoids the scratching of paper or film labels by traditional hard contact, ensuring that the barcode and identification information are clear and readable, and ensuring the accuracy of sample traceability; the composite limiting groove opened on the bottom plate includes a conical hole and a conical support step around it, which can be compatible with both pointed bottom and round bottom or different specifications of sample tubes at the same time, and one hole position can meet the needs of multiple tube bottom shapes; the first partition plate cooperates with multiple axial mounting holes on the side plate through a sliding groove to achieve height adjustment, thereby adapting to sample tubes of different lengths. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 The attached figure is a schematic diagram of the structure of the adaptive ice-water bath sample rack provided by the present invention; Figure 2 The attached image is... Figure 1 Enlarged view of section A in the attached figure; Figure 3 The attached image is... Figure 1 Enlarged view of section B in the attached figure; Figure 4 The attached figure is a top view of the base plate provided by the present invention; Figure 5 The attached image is... Figure 4 Enlarged view of section C in the attached figure Figure 6 The attached figure is a schematic diagram of the large-diameter sample provided by the present invention placed in an adaptive ice-water bath sample rack; Figure 7 The attached figure is a schematic diagram of the small-diameter sample provided by the present invention placed in an adaptive ice-water bath sample holder.

[0021] Wherein: 1-support frame; 11-base plate; 111-drainage hole; 12-side plate; 121-slide groove; 122-mounting hole; 2-first partition; 3-fastener; 4-first clamping space; 5-second partition; 6-second clamping space; 7-sample tube; 8-limiting groove; 81-conical hole; 82-conical support step; 821-third elastic valve. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] See appendix Figure 1 As shown, an embodiment of the present invention discloses an adaptive ice-water bath sample rack, comprising: Support frame 1, which is a U-shaped structure consisting of a base plate 11 and two side plates 12; The first partition 2 is slidably connected between the two side plates 12 and fastened by fasteners 3. The first partition 2 has a first through hole 21 and a plurality of first elastic valves 22 arranged in a ring within the first through hole 21; the plurality of first elastic valves 22 form a first clamping space 4. The second partition 5 is fixedly installed between the two side plates 12 and located between the first partition 2 and the bottom plate 11; the second partition 5 has a second through hole 51, and the second through hole 51 has a plurality of second elastic valves 52 arranged in a ring, and the plurality of second elastic valves 52 form a second clamping space 6. The inner diameter of the first clamping space 4 is different from that of the second clamping space 6, so that the first elastic valve 22 and the second elastic valve 52 can cooperate to adaptively clamp sample tubes 7 of different diameters.

[0024] When the adaptive ice-water bath sample holder of the present invention is in operation, it first selects the appropriate insertion method according to the specifications and type of the sample tube 7 to be processed. Since the inner diameters of the first clamping space 4 and the second clamping space 6 are different, and the first elastic valve 22 and the second elastic valve 52 are both made of elastic material, adaptive clamping of sample tubes 7 with different diameters can be achieved.

[0025] like Figure 6As shown, when inserting a large-diameter sample tube 7 (such as a 5mL blood collection tube), the operator inserts the sample tube 7 into the first through hole 21 from top to bottom. Since the inner diameter of the first clamping space 4 is large and matches the outer diameter of the large-diameter sample tube 7, the large-diameter sample tube 7 first passes through the first clamping space 4. At this time, multiple first elastic valves 22 rotate outward around the hinge point and generate elastic deformation, adaptively enveloping the outer wall of the sample tube 7, forming the main clamping force on the sample tube 7, ensuring that the sample tube 7 is stably upright in the initial stage of insertion. As the sample tube 7 continues to move downwards, its bottom gradually approaches the second through hole 51. Since the inner diameter of the second clamping space 6 is smaller than the outer diameter of the large-diameter sample tube 7, the second elastic valve 52 is squeezed by the outer wall of the sample tube 7, rotates downwards around the hinge point and unfolds, allowing the sample tube 7 to pass smoothly through the second through hole 51. Finally, the bottom of the sample tube 7 enters the limiting groove 8 opened on the bottom plate 11. During this process, the second elastic valve 52 is in an avoidance state and does not clamp the large-diameter sample tube 7, while the first elastic valve 22 always maintains a stable clamping of the large-diameter sample tube 7, forming an upper clamping and bottom wrapping system together with the limiting groove 8, effectively preventing the sample tube 7 from shaking or floating in the ice water bath.

[0026] like Figure 7 As shown, when inserting a small-diameter sample tube 7 (such as a 2mL centrifuge tube), the operator inserts the sample tube 7 from top to bottom into the first through-hole 21. Since the inner diameter of the first clamping space 4 is larger than the outer diameter of the small-diameter sample tube 7, the first elastic valve 22 only guides the sample tube 7 to the center position of the second through-hole 51, without forming a strong clamping force. The sample tube 7 continues to move downwards and enters the second clamping space 6. Since the inner diameter of the second clamping space 6 is smaller and matches the outer diameter of the small-diameter sample tube 7, the second elastic valve 52 rotates inward around the hinge point and generates elastic deformation, adaptively enveloping the outer wall of the sample tube 7, forming the main clamping force on the small-diameter sample tube 7. Meanwhile, the pointed bottom part of the sample tube 7 enters the conical hole 81 of the limiting groove 8, forming line contact or surface contact with the inner wall of the conical hole 81 to achieve precise positioning. During this process, the first elastic valve 22 plays a guiding and centering role, and the second elastic valve 52 provides the main clamping force. Together with the conical hole 81, they form a triple system of upper guidance, lower clamping and bottom wrapping, ensuring that the small-diameter sample tube 7 is stable and vertical in the ice water bath, and will not float or fall out even if subjected to buoyancy.

[0027] like Figure 2As shown in Figure 3, the present invention, by setting a rounded chamfer structure, ensures a smooth transition between the contact surfaces of the first elastic valve 22 and the second elastic valve 52 and the sample tube 7. When a paper or film label is affixed to the surface of the sample tube 7, the rounded chamfer structure can prevent sharp edges from scratching the label, protecting the barcode and text information on the label so that it remains clearly readable. At the same time, the rounded surface reduces the coefficient of friction between the valve and the sample tube 7, making the insertion and removal operation smoother.

[0028] like Figure 1 As shown, the limiting groove 8 on the base plate 11 corresponds to the second through hole 51. When the sample tube 7 is inserted into place, its bottom extends into the limiting groove 8. The limiting groove 8 adopts a composite structure design, including a conical hole 81 and a conical support step 82 arranged around the conical hole 81. The top diameter of the conical support step 82 is larger than the bottom diameter. This design allows the same limiting groove 8 to be compatible with both pointed and round bottom sample tubes or sample tubes of different specifications, greatly improving ease of use. Figure 5 As shown, the inner wall of the conical support step 82 has a third elastic valve 821 arranged around it. The third elastic valve 821 can achieve flexible wrapping of the bottom of the sample tube 7, making it more stable.

[0029] like Figure 4 As shown, the base plate 11 also has multiple drainage holes 111. When the sample tube 7 is inserted into the limiting groove 8, the air and water in the limiting groove 8 can be quickly discharged through the drainage holes 111, preventing the formation of air or water cushions that could cause the sample tube 7 to bounce back or fail to be inserted to the bottom, ensuring that the sample tube 7 can smoothly reach the predetermined depth. At the same time, the drainage holes 111 balance the water pressure inside and outside the limiting groove 8, preventing the additional buoyancy generated by the water in the groove from pushing the sample tube 7 upward, and working together with the limiting groove 8 to further enhance the anti-floating effect. In addition, the drainage holes 111 allow ice water to flow freely into the limiting groove 8 area, and the bottom of the sample tube 7 is in direct contact with the refrigerant, improving the heat transfer efficiency and accelerating the sample cooling speed.

[0030] like Figure 1 As shown, the present invention also includes a height adjustment mechanism. Slide grooves 121 are provided on the inner walls of both side plates 12, and multiple axially arranged mounting holes 122 are provided on the outer walls corresponding to the slide grooves 121. The two sides of the first partition plate 2 have protrusions that mate with the slide grooves 121, and fasteners 3 pass through the mounting holes 122 and are threadedly connected to the protrusions. When processing sample tubes 7 of different lengths, the operator can slide the first partition plate 2 along the slide grooves 121 to a suitable position according to the height of the sample tube 7, select the corresponding mounting hole 122, and tighten the fasteners 3 to fix the first partition plate 2. This design allows the longitudinal distance between the first partition plate 2 and the second partition plate 5 to be adjustable, thereby adapting to various specifications of sample tubes 7, from short tubes (such as 2mL blood collection tubes) to long tubes (such as 5mL blood collection tubes), achieving multi-purpose functionality.

[0031] In summary, this invention achieves adaptive clamping of sample tubes 7 of different diameters through the coordinated operation of two elastic valves with different inner diameters; effectively solves the problem of lightweight sample tubes 7 easily floating in an ice-water bath through the coordinated design of the limiting groove 8 and the drainage hole 111; protects the integrity of the label through the rounded chamfer structure; and achieves compatibility with sample tubes 7 of different lengths through the adjustable height of the first partition 2. The entire device has a simple structure, is easy to operate, and is highly adaptable, providing a highly efficient ice-water bath sample processing tool for biomedical laboratories.

[0032] In some specific embodiments, the first elastic valve 22, the second elastic valve 52, and the third elastic valve 821 can be made of silicone, rubber, or other polymer materials with good elasticity to ensure sufficient deformation capacity and clamping force. The thickness, hardness, and number of valves can be optimized according to the specifications of the target sample tube. For example, for the two commonly used specifications of 2mL centrifuge tubes and 5mL blood collection tubes, the first elastic valve 22 can be designed to be thinner and softer, and the second elastic valve 52 can be designed to be thicker and harder to achieve the best clamping effect.

[0033] In other embodiments, the taper of the tapered hole 81 of the limiting groove 8 and the tapered support step 82 can be matched with the standard curvature of the bottom of the sample tube to ensure that a stable surface contact or line contact is formed between the bottom of the tube and the limiting groove 8, which not only ensures positioning accuracy but also avoids stress concentration that could damage the sample tube.

[0034] In a specific example, the drainage holes 111 can be designed as multiple small holes evenly distributed on the base plate 11, or as a grid structure to maximize drainage efficiency. The grid structure can also reduce the overall weight of the sample rack, making it easier to handle and clean.

[0035] In some specific examples, the mounting holes 122 on the side plate 12 can be arranged at equal intervals, or the mounting holes 122 can be set at specific positions according to the length specifications of commonly used sample tubes. For example, three positions can be set for sample tube lengths of 1.5mL, 2mL, and 5mL, so that operators can quickly adjust them.

[0036] The embodiment of this invention is as follows: In use, the operator first adjusts the height of the first partition 2 according to the specifications of the sample tube 7 to be processed, using the slide groove 121 and mounting hole 122, to match the length of the sample tube 7. Then, the sample holder is placed in an ice-water bath, immersing the base plate 11 in the ice-water mixture. Next, according to the specifications of the sample tube 7, the sample tube 7 is inserted into the corresponding hole. For large-diameter sample tubes 7, they are directly inserted and held and fixed by the first elastic valve 22; for small-diameter sample tubes 7, they are inserted and held and fixed by the second elastic valve 52. After the bottom of the sample tube 7 enters the limiting groove 8, the drain hole 111 automatically drains the water accumulated in the groove, ensuring that the sample tube 7 is inserted in place. During the experiment, the two layers of elastic valves always maintain a stable clamping of the sample tube 7, and the limiting groove 8 restricts its upward floating, keeping the sample tube 7 in a vertical and fixed state in the ice-water bath. After the experiment, the sample tube 7 can be pulled out directly upwards, and the elastic valves automatically reset, ready for the next use.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adaptive ice-water bath sample holder, characterized in that, include: The support frame (1) is a U-shaped structure consisting of a base plate (11) and two side plates (12); The first partition (2) is slidably connected between the two side plates (12) and fastened by fasteners (3). The first partition (2) has a first through hole (21) and a plurality of first elastic valves (22) arranged in a ring within the first through hole (21). The plurality of first elastic valves (22) form a first clamping space (4). The second partition (5) is installed between the two side plates (12) and between the first partition (2) and the bottom plate (11); the second partition (5) has a second through hole (51) and a plurality of second elastic valves (52) arranged in a ring, and the plurality of second elastic valves (52) form a second clamping space (6). The inner diameter of the first clamping space (4) is different from the inner diameter of the second clamping space (6) so that the first elastic valve (22) and the second elastic valve (52) can cooperate to adaptively clamp sample tubes (7) of different diameters.

2. The adaptive ice-water bath sample holder according to claim 1, characterized in that, The inner diameter of the first clamping space (4) is larger than the inner diameter of the second clamping space (6).

3. The adaptive ice-water bath sample holder according to claim 1, characterized in that, The contact surfaces of the first elastic valve (22), the second elastic valve (52) and the sample tube (7) are rounded and chamfered.

4. The adaptive ice-water bath sample holder according to claim 1, characterized in that, The base plate (11) has multiple limiting grooves (8) corresponding to the second through hole.

5. The adaptive ice-water bath sample holder according to claim 4, characterized in that, The limiting groove (8) includes a conical hole (81) and a conical support step (82) arranged around the conical hole (81).

6. The adaptive ice-water bath sample holder according to claim 5, characterized in that, The top diameter of the conical support step (82) is larger than the bottom diameter, and its inner sidewall has a third elastic valve (821) arranged around it.

7. The adaptive ice-water bath sample holder according to claim 1, characterized in that, The base plate (11) has multiple drainage holes (111).

8. The adaptive ice-water bath sample holder according to claim 1, characterized in that, Both side plates (12) have grooves (121) on their inner sidewalls and multiple axially arranged mounting holes (122) on their outer sidewalls corresponding to the grooves (121); the two sides of the first partition plate (2) have protrusions that cooperate with the grooves (121), and the fastener (3) passes through the mounting holes (122) and is threaded to the protrusions.

Images