Pipe rack

Abstract

The utility model relates to a pipe frame, which comprises a frame main body and a cover body, the frame main body comprises a top layer plate and a bottom layer plate, and the top layer plate is provided with at least one through hole through which a pipe container can pass; the bottom-layer plate is positioned below the top-layer plate and is spaced from the top-layer plate; the bottom layer plate is provided with at least one bearing part, one bearing part is correspondingly arranged below one via hole, and the bearing parts are used for bearing the bottom of the pipe container; the cover body at least has a closed position and an open position relative to the top layer plate; when the cover body is located at the closed position, the cover body covers the top layer plate and applies pressure to the top of the pipe container so that the pipe container can be fixed to the frame body. And when the cover body is at the opening position, the cover body relieves the limitation of the pipe container, and the pipe container can be taken away from the rack main body. When the rack main body is placed in a liquid such as a water bath or an oil bath for heating, the cover body at the closed position can be used for pressing the floating pipe container, so that the experiment effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a tube rack for placing tube containers. Background Technology

[0002] In the field of biotechnology, it is often necessary to process large quantities of plasma, serum, and other samples, requiring the use of centrifuge tubes (50ml is the most common) for sample preservation. Centrifuge tubes are typically placed on centrifuge tube racks. However, existing centrifuge tube racks have gaps between the holes and the centrifuge tubes, making it easy for the tubes containing samples to tip over and preventing them from being stacked.

[0003] When centrifuge tubes are used for extraction operations, a water bath heating process is often involved. During this process, if there is insufficient liquid in the tubes, the centrifuge tubes placed on the centrifuge tube rack will float upwards due to the buoyancy of the water, making it difficult to fix the centrifuge tubes in the water bath and affecting the experimental incubation effect. When dealing with a large number of samples, this not only affects the experimental results but also greatly reduces the operator's experimental efficiency. Utility Model Content

[0004] To solve at least one of the above-mentioned technical problems, this application provides a tube rack. When the main body of the rack is placed in a liquid such as a water bath or oil bath for heating, the cover in the closed position can press down the floating tube container to ensure the experimental effect.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] This application embodiment provides a pipe rack, the pipe rack comprising:

[0007] The frame body includes a top plate and a bottom plate. The top plate has at least one through hole through which a pipe container can pass. The bottom plate is located below the top plate and is spaced apart from the top plate. The bottom plate has at least one support portion, with one support portion corresponding to each through hole. The support portion is used to support the bottom of the pipe container.

[0008] The cover has at least a closed position and an open position relative to the top plate; when the cover is in the closed position, the cover covers the top plate and applies pressure to the top of the tube container to secure the tube container to the frame body.

[0009] When the cover is in the open position, the cover releases its restriction on the tube container, allowing the tube container to be removed from the frame body.

[0010] Optionally, one side of the cover is rotatably connected to the frame body, and the other side of the cover is detachably connected to the frame body via a locking structure;

[0011] When the locking structure locks the cover and the frame body, the cover is in the closed position; when the locking structure releases the lock on the cover and the frame body, the cover can be in the open position.

[0012] Optionally, the frame body further includes: support rods, which connect the top layer plate and the bottom layer plate respectively, so that the top layer plate and the bottom layer plate are spaced apart.

[0013] Optionally, the supporting part is a through hole, the inner diameter of the through hole is smaller than the inner diameter of the through hole, and the inner diameter of the through hole is greater than or equal to the outer diameter of the pipe container.

[0014] Optionally, the cover is a box with an opening, and when the cover is in the closed position, the opening faces the top layer.

[0015] Optionally, the tube container is a centrifuge tube.

[0016] Optionally, the number of vias and the number of through holes are both multiple, with the multiple vias having the same size and the multiple through holes having the same size.

[0017] Optionally, both the number of vias and the number of through holes are multiple, and at least two of the vias have different inner diameters;

[0018] The bottom plate includes a first zone and a second zone. The height of the first zone from the top plate is greater than the height of the second zone from the top plate. The inner diameter of the through hole located in the first zone is greater than the inner diameter of the through hole located in the second zone.

[0019] Optionally, the cover is connected to the top plate, and both the top plate and the bottom plate are detachable structures.

[0020] Optionally, the frame body further includes a base column located at the bottom of the bottom plate, and the tube frame is placed on the bearing surface via the base column, so that there is a gap between the bottom plate and the bearing surface.

[0021] Effects of the utility model

[0022] In this embodiment, the tube rack provides a convenient placement location for the tube containers, allowing them to be placed neatly and orderly. When it is necessary to heat the sample inside the tube container, the rack body can be placed in a liquid such as a water bath or oil bath, and the lid can be closed, pressing the lid over the tube container. The pressure applied by the lid can overcome the buoyancy of the liquid on the tube container, ensuring that even if there is a small amount of sample inside the tube container, buoyancy will not affect its fixation, thus guaranteeing the experimental results such as incubation.

[0023] When heating is not required, the lid can be opened to provide stable support for the tube container, facilitating sample handling. Alternatively, the lid can be closed to further secure the tube container, making it easier to move and transport and reducing sample spillage caused by accidental collisions.

[0024] When there are multiple through holes and support sections, multiple tube containers can be installed on the main body of the frame, increasing the number of tube containers that can be placed on the tube frame. This makes it easier for experimental operators to handle a large number of samples and improves experimental efficiency. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the tube rack provided in some embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the tube rack provided in some other embodiments of this application;

[0028] Figure 3 This is a schematic diagram of the assembly structure of the cover and top plate in a tube rack provided in some embodiments of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Pipe rack; 110. Cover; 111. Top wall; 112. Side wall; 113. Chamber; 114. Opening; 120. Main frame; 1201. First zone; 1202. Second zone; 121. Top plate; 1211. Through hole; 122. Bottom plate; 1221. Through hole; 123. Support rod; 124. Base column; 130. Locking structure; 131. Lock tongue; 1311. Lock hole; 132. Protrusion. Detailed Implementation

[0031] To make the technical solution and beneficial effects of this utility model more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0032] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this utility model.

[0033] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly indicate that at least one of those features is included. In the description of this utility model, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In this utility model, unless otherwise explicitly defined, the terms "above," "on top of," "above," "over," "below," "below," "below," or "below" for "first feature above second feature" can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, "above," "above," and "over" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0036] See Figure 1 and Figure 2 This application provides a pipe rack 100, which includes a rack body 120 and a cover 110. The rack body 120 includes a top plate 121 and a bottom plate 122. The top plate 121 has at least one through hole 1211 through which a pipe container can pass. The bottom plate 122 is located below the top plate 121 and is spaced apart from the top plate 121. The bottom plate 122 has at least one support portion, with a corresponding support portion below each through hole 1211, and the support portion is used to support the bottom of the pipe container. The cover 110 has at least a closed position and an open position relative to the top plate 121. When the cover 110 is in the closed position, the cover 110 covers the top plate 121 and applies pressure to the top of the pipe container to fix the pipe container to the rack body 120. When the cover 110 is in the open position, the cover 110 releases the restriction on the pipe container and can remove the pipe container from the rack body 120.

[0037] The through hole 1211 limits the upper part of the tube container, and the bearing part limits the bottom of the tube container. Together, they can make the tube container stand upright on the frame body 120.

[0038] The support portion can be a through hole 1221 (mentioned below) or a recessed blind hole. Understandably, since samples generally accumulate at the bottom of the tube container, a through hole 1221 in the support portion allows for better heating or incubation of the sample.

[0039] Tube containers include, but are not limited to, centrifuge tubes, test tubes, and other tubular containers. Tube containers generally refer to slender, hollow tubular fittings.

[0040] The tube container can be capped or uncapped. When the tube container is uncapped, the cap 110 in the closed position can act as a cap for multiple tube containers at the same time, protecting the samples inside the tube containers from contamination.

[0041] The tube rack 100 provides a convenient placement location for tube containers, allowing them to be placed neatly and orderly. When it is necessary to heat the sample inside the tube container, the rack body 120 can be placed in a liquid such as a water bath or oil bath, and the cover 110 can be closed, pressing the cover 110 over the tube container. The pressure applied by the cover 110 can overcome the buoyancy of the liquid on the tube container, so even if there is a small amount of sample inside the tube container, it will not be affected by buoyancy and will ensure the effectiveness of experiments such as incubation.

[0042] Figures 1 to 3 The illustration shows the cover 110 in the open position. When heating is not required, the cover 110 can be opened to provide stable support for the tube container using the frame body 120, facilitating sample handling. Alternatively, the cover 110 can be closed to further secure the tube container, reducing or even preventing tilting, thus facilitating movement and transportation and minimizing sample spillage due to accidental collisions. In other words, the tube frame 100 can provide stable support for the operator during DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) extraction.

[0043] In some implementations, when the cover 110 is in the closed position, the cover 110 can abut against the top of the tube container. The top of the tube container can be the top wall of the cover or the opening wall of the top opening of the uncovered tube container. This allows for better fixation of the tube container.

[0044] In some other implementations, when the cover 110 is in the closed position, there can be a small gap between the cover 110 and the top of the tube container, which is smaller than the outer diameter of the tube container. In this way, when the tube container is lifted a short distance by buoyancy in a water bath or oil bath and comes into contact with the cover 110, the cover 110 still has a fixing effect on the tube container.

[0045] The number of vias 1211 and the number of supporting parts are equal, and their positions correspond one-to-one. The number of vias 1211 and supporting parts can be one, or two, three or more. Figure 1 An example is shown with 12 vias 1211.

[0046] Taking via 1211 as an example, when there are multiple vias 1211, they can be distributed in an array to facilitate orderly arrangement of samples and make experimental operations easier. The array includes, but is not limited to, rectangular arrays and circular matrix columns.

[0047] Multiple tube containers can be installed on the main body 120, increasing the number of tube containers that can be placed on the tube rack 100. This makes it easier for experimental operators to process large numbers of samples and improves experimental efficiency.

[0048] See Figures 1 to 3 In some optional embodiments, one side of the cover 110 is rotatably connected to the frame body 120, and the other side of the cover 110 is detachably connected to the frame body 120 via a locking structure 130; when the locking structure 130 locks the cover 110 and the frame body 120, the cover 110 is in a closed position; when the locking structure 130 releases the lock on the cover 110 and the frame body 120, the cover 110 can be in an open position.

[0049] One side of the cover 110 can be connected to the frame body 120 via a pivot or hinge to allow the cover 110 to rotate relative to the frame body 120, so that the cover 110 can be in an open or closed position relative to the frame body 120.

[0050] exist Figures 1 to 3 In the illustrated implementation, the cover 110 is hinged to the top plate 121. The locking structure 130 includes a latch 131 on the cover 110 and a protrusion 132 on the top plate 121. The latch 131 has a locking hole 1311. When the cover 110 is rotated downward relative to the top plate 121 to a roughly horizontal position, the protrusion 132 can be inserted into the locking hole 1311, and the cover 110 is in a closed position. The cooperation between the latch 131 and the protrusion 132 can prevent the cover 110 from opening, ensuring the fixing effect on the tube container. The protrusion 132 can be integrally formed with the top plate 121. The locking structure 130 illustrated in this application is simple, convenient, and low in cost.

[0051] In other implementations, the locking structure 130 may also employ other locking methods such as magnetic locking or snap-locking.

[0052] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the frame body 120 also includes a support rod 123, which connects the top plate 121 and the bottom plate 122 respectively, so that the top plate 121 and the bottom plate 122 are distributed at intervals.

[0053] See also Figure 1 and Figure 2 The tube rack 100 includes four support rods 123. Both the top plate 121 and the bottom plate 122 are approximately rectangular in structure. The two ends of the support rods 123 are connected to the top plate 121 and the bottom plate 122, respectively, and the four support rods 123 support the four corners of the top plate 121 and the bottom plate 122. This rack body 120, composed of plates and rods, saves materials and allows for maximum exposure of the tubes and containers, ensuring sufficient contact with the liquid in a water bath or oil bath and guaranteeing effective heat treatment of the samples.

[0054] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the supporting part is a through hole 1221. The inner diameter of the through hole 1221 is smaller than the inner diameter of the through hole 1211, and the inner diameter of the through hole 1211 is greater than or equal to the outer diameter of the pipe container.

[0055] The inner diameter of the through hole 1211 is greater than or equal to the outer diameter of the tube / container, allowing the tube / container to pass through easily and facilitating its placement and removal. Most centrifuge tubes consist of a conical bottom and a cylindrical section. The outer diameter of the conical bottom is smaller than the outer diameter of the cylindrical section, while the inner diameter of the through hole 1221 is smaller than the outer diameter of the cylindrical section but larger than the outer diameter of the conical bottom. Therefore, the conical bottom can easily pass through both the through hole 1211 and the through hole 1221, but the cylindrical section cannot pass through the through hole 1221 and is instead supported above the bottom plate 122. This structure reduces tube / container swaying and improves the restraint effect on the tube / container.

[0056] Moreover, the inner diameter of the through hole 1221 is smaller than the outer diameter of the cylindrical tube but larger than the outer diameter of the conical bottom. There is no need to set up a plate to support the tube container below the bottom plate 122. The tube container can be supported by the through hole 1221. When the tube rack 100 is removed from the bearing surface, the tube container can be completely lifted up, making it convenient to transfer the tube container through the tube rack 100.

[0057] In some alternative embodiments, such as Figure 1 As shown, the cover 110 is a box with an opening 114. When the cover 110 is in the closed position, the opening 114 faces the top plate 121. This semi-open box can accommodate part of the tube container, so that the top and surrounding area of ​​the tube container is covered, which can at least improve the protection of the tube container.

[0058] like Figure 1 As shown, the box includes a top wall 111 and a side wall 112 surrounding the top wall 111. The side wall 112 and the top wall 111 together form a chamber 113, and the side wall 112 encloses an opening 114. When the cover 110 is rotated downwards, the tube container can partially enter the chamber 113 through the opening 114 and come into contact with or approach the top wall 111.

[0059] In some alternative implementations, both the number of vias 1211 and the number of through holes 1221 are multiple, such as... Figure 1 As shown, the multiple vias 1211 are of equal size, and the multiple through holes 1221 are of equal size. This structure is advantageous for placing multiple pipes and containers of the same specifications and dimensions.

[0060] In some alternative implementations, both the number of vias 1211 and the number of through holes 1221 are multiple, such as... Figure 2As shown, at least two through holes 1211 have unequal inner diameters. The bottom plate 122 includes a first region 1201 and a second region 1202. The height of the first region 1201 from the top plate 121 is greater than the height of the second region 1202 from the top plate 121. The inner diameter of the through hole 1221 in the first region 1201 is greater than the inner diameter of the through hole 1221 in the second region 1202. Generally, large-diameter tubes and containers are also taller, while small-diameter tubes and containers are relatively shorter. Therefore, distributing the large-diameter through holes 1211 and through holes 1221 in the first region 1201 facilitates the placement of large-diameter tubes and containers. Distributing the small-diameter through holes 1211 and through holes 1221 in the second region 1202 facilitates the placement of small-diameter tubes and containers. This structure allows a single tube rack 100 to hold multiple tubes and containers of different sizes, meeting the different needs of experimental operators and making it more convenient to use.

[0061] If the top plate 121 is divided into two areas of different heights, it is possible to place pipes and containers of different specifications. However, the cover 110 must also be structurally adapted to the structure of the top plate 121. Otherwise, the cover 110 cannot cover all the pipes and containers. This implementation method is structurally complex and costly. In the embodiment of this application, the structure of the cover 110 can be adapted to the top plate 121. Figure 1 As shown, the top plate 121 also maintains a flat, smooth surface structure. Only the bottom plate 122 needs to be divided into two sections of different heights to achieve this. Figure 1 Based on the structure shown, make as few structural changes as possible to meet the need to place multiple pipe containers of different specifications and sizes, while reducing costs.

[0062] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the cover 110 is connected to the top plate 121, and both the top plate 121 and the bottom plate 122 are detachable structures. See also Figure 3 After the top panel 121 is removed, the cover 110 is removed simultaneously with the top panel 121. The detachable structure allows the same bottom panel 122 to be adapted to top panels 121 of different specifications, or the same top panel 121 to be adapted to bottom panels 122 of different specifications, so that the tube rack 100 can more flexibly meet different application needs.

[0063] In conjunction with the aforementioned support rod 123, the pipe rack 100 of this embodiment can be disassembled into three parts: a top plate 121 + cover 110 structure, a bottom plate 122, and support rods 123. The structure is simple and easy to store and transport. By replacing support rods 123 of different heights, the height between the top plate 121 and the bottom plate 122 can be adjusted to accommodate pipe containers of different heights. For example, a top plate 121 with a through hole 1211 of the same inner diameter and a bottom plate 122 with a through hole 1221 of the same inner diameter can accommodate pipe containers of the same outer diameter but different heights. This requirement for accommodating pipe containers of different heights can also be achieved by replacing the bottom plate 122 with a first zone 1201 and a second zone 1202.

[0064] The support rod 123 can be detached from the top plate 121 (or bottom plate 122) by means of snap-fit, threaded connection, magnetic connection, etc.

[0065] See Figure 1 and Figure 2 In some optional embodiments, the frame body 120 further includes a base column 124 located at the bottom of the bottom plate 122. The tube rack 100 is placed on the bearing surface via the base column 124, creating a gap between the bottom plate 122 and the bearing surface. The base column 124 ensures a certain distance between the bottom tubes and the bearing surface, preventing the bottom of the tube container from being lifted and wobbling when placed on the tube rack 100, thus improving the stability of the tube rack 100 during use. Furthermore, the column-shaped structure of the base column 124 better avoids obstructing the bottom of the tube container, further reducing obstruction and ensuring sufficient contact between the tube container and the liquid in the water or oil bath.

[0066] exist Figure 1 and Figure 2 In the implementation shown, the frame body 120 includes four base columns 124, which are located at the four corners of the base.

[0067] The bearing surface includes, but is not limited to, tabletops, the bottom of water baths or oil baths, etc.

[0068] Understandably, the base column 124 can also be replaced by a base of other structures to achieve the purpose of stable placement of the tube rack 100.

[0069] See one example. Figure 1The centrifuge tube rack 100 can hold 12 centrifuge tubes of 50ml each. The top plate 121 has 12 through holes 1211 for the 50ml centrifuge tubes to pass through, and the bottom plate 122 has two rows of 12 through holes 1221 to support the bottom of the cone-shaped centrifuge tubes. Both the bottom plate and the top plate are rectangular plates of a certain thickness. Four support rods 123 at the four corners of the bottom plate 122 fix the bottom plate 122 and the top plate 121 into a whole. The cover of the centrifuge tube rack 100 is a hollow rectangular box without a bottom. After the centrifuge tube cover is fixed to the centrifuge tube rack 100, the upper part of the centrifuge tube rack 100 is in a semi-closed protective state, which can better protect the 50ml centrifuge tubes and prevent the centrifuge tubes from moving around.

[0070] Without limitation, the tube rack 100 in this embodiment can be made of metal or plastic. For example, to meet both thermal conductivity and lightweight requirements, the tube rack 100 can be made of aluminum alloy.

[0071] The container can be made of plastic or glass, but is not limited to these materials.

[0072] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0073] In the description of this specification, references to "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tube rack characterized in that, The tube rack comprises: a rack body, the rack body comprising a top layer plate and a bottom layer plate, the top layer plate having at least one through hole through which a tube container can pass; the bottom layer plate being located below the top layer plate and having a spacing between the top layer plate and the bottom layer plate; the bottom layer plate having at least one bearing part, one bearing part corresponding to one through hole below, the bearing part being used to bear the bottom of the tube container; a cover body, the cover body having at least a closed position and an open position relative to the top layer plate; when the cover body is in the closed position, the cover body covers above the top layer plate and exerts pressure on the top of the tube container to fix the tube container on the rack body; when the cover body is in the open position, the cover body releases the limitation of the tube container and can take the tube container away from the rack body.

2. The tube rack of claim 1, wherein, One side of the cover body is rotationally connected with the rack body, and the other side of the cover body is detachably connected with the rack body through a lock catch structure; when the lock catch structure locks the cover body and the rack body, the cover body is in the closed position; when the lock catch structure releases the lock of the cover body and the rack body, the cover body can be in the open position.

3. The tube rack of claim 1, wherein, The rack body further comprises a support rod, the support rod being connected with the top layer plate and the bottom layer plate respectively to make the top layer plate and the bottom layer plate be distributed with a spacing.

4. The tube rack of claim 1, wherein, The bearing part is a through hole, the inner diameter of the through hole being smaller than the inner diameter of the through hole, and the inner diameter of the through hole being greater than or equal to the outer diameter of the tube container.

5. The tube rack of claim 1, wherein, The cover body is a box body with an opening, the opening facing the top layer plate when the cover body is in the closed position.

6. The tube rack of claim 1, wherein, The tube container is a centrifugal tube.

7. The tube rack of claim 4, wherein, The number of the through holes and the number of the through holes are both multiple, the sizes of the multiple through holes being equal, and the sizes of the multiple through holes being equal.

8. The tube rack of claim 4, wherein, The number of the through holes and the number of the through holes are both multiple, the inner diameters of at least two through holes being not equal; The bottom layer plate comprises a first area and a second area, the height of the first area from the top layer plate being greater than the height of the second area from the top layer plate, and the inner diameter of the through hole located in the first area being greater than the inner diameter of the through hole located in the second area.

9. The tube rack of claim 1 or 3 or 8, wherein, The cover body is connected with the top layer plate, and the top layer plate and the bottom layer plate are both detachable structures.

10. The tube rack of claim 1 or 3, wherein, The rack body further comprises a base column, the base column being located at the bottom of the bottom layer plate, and the tube rack being placed on a bearing surface through the base column to make the bottom layer plate have a spacing from the bearing surface.

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