Light-proof centrifugal tube sleeve and light-proof centrifugal tube rack

Abstract

The utility model discloses a light-proof centrifugal tube sleeve which comprises a centrifugal tube sleeve body, the centrifugal tube sleeve body is arranged in a hollow shape with an opening in the top, is used for accommodating and placing a centrifugal tube, and is made of a light-proof plastic material. A light-proof centrifugal tube rack comprises a centrifugal tube sleeve body and a centrifugal tube rack body used for placing the centrifugal tube sleeve body, a plurality of rows of centrifugal tube sleeve placing grooves with top openings are formed in the centrifugal tube rack body in the length direction of the centrifugal tube rack body, and the centrifugal tube sleeve placing grooves are matched with the centrifugal tube sleeve body in structure. The lower portions of every two adjacent centrifugal tube containing grooves in each row are connected through a connecting hole communicated with the interiors of the centrifugal tube containing grooves, and the lower portion of at least one centrifugal tube containing groove is provided with a vent hole extending out of the centrifugal tube rack body. According to the test tube, the condition of a coupling antibody can be observed in real time while reagents in the test tube are kept out of light, so that high efficiency of the test is promoted, and the test cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a light-proof centrifuge tube sleeve and a light-proof centrifuge tube rack. Background Art

[0002] Fluorescent reagents, including small molecule fluorescents and fluorescent proteins, are generally packaged in small reagent vials ranging from 0.5 to 50 ml. The chemical labeling and modification processing of these reagents is mostly performed on the laboratory bench. Although fluorescent reagents need to be stored away from light as much as possible, during the production process of these reagents, it is necessary to observe the solution or protein precipitation at the bottom of the tube from time to time through the tube wall. Therefore, the use of brown tube bottles is not very suitable. At present, the production and development of fluorescent reagents still mostly use transparent plastic tubes, which are covered with aluminum foil to avoid light. This achieves the purpose of light protection to a certain extent, but it is difficult to completely cover the surface of the test tube when the aluminum foil is manually wrapped. The light protection effect of opening the aluminum foil is sometimes not ideal, and the light protection effect we need cannot be achieved. It is also inconvenient when switching between different production test steps.

[0003] Flow cytometry requires the application of large molecule fluorescent or small molecule fluorescent conjugated antibodies. During the antibody conjugation process, it is necessary to avoid light as much as possible to achieve the best fluorescent labeling effect, and to avoid multiple transitions quenching the fluorescence activity due to the excitation of fluorescence by natural light. To achieve the light-proof effect, the existing technology is to use light-proof centrifuge tubes. The light-proof centrifuge tubes currently on the market are integrated with the light-proof coating and the centrifuge tube body. If you want to achieve the light-proof operation as much as possible to protect fluorescence during labeling, the integrated light-proof centrifuge tube can meet the light-proof conditions we need. However, its closed coating makes it difficult to confirm the situation of the conjugated antibody, such as observing the liquid volume, whether bubbles appear on the liquid surface, whether precipitation is generated in the conjugated antibody, etc. When the experimental time is tight, it is impossible to make a judgment in the first time. In addition, the conjugated antibody is relatively sticky to the tube. If the situation inside the tube cannot be seen clearly, there is a high risk of loss of the conjugated antibody. Such disposable light-proof centrifuge tubes lead to increased R&D costs and production costs.

[0004] Therefore, it is necessary to provide a light-proof centrifuge tube sleeve and a light-proof centrifuge tube rack to solve the above problems. Utility Model Content

[0005] In order to overcome the above shortcomings, the purpose of the present invention is to provide a light-proof centrifuge tube sleeve and a light-proof centrifuge tube rack, which can ensure that the reagents in the test tube are protected from light while also allowing real-time observation of the coupled antibodies in the test tube, thereby promoting efficient testing and reducing testing costs.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: a light-proof centrifuge tube sleeve, including a centrifuge tube sleeve body; the centrifuge tube sleeve body is hollow with an open top, used to accommodate a centrifuge tube, and a base is integrally formed at the bottom of the centrifuge tube sleeve body, the interior of the base is a hollow accommodating cavity, and a weight is arranged in the accommodating cavity, and the centrifuge tube sleeve body is made of light-proof plastic material.

[0007] Furthermore, the light-shielding plastic material includes light-shielding PC material and PA plastic. The light-shielding plastic material is added with a light-shielding ingredient, so that when the centrifuge tube sleeve is subsequently cast, the cooled and formed centrifuge tube sleeve has a light-shielding function, thereby ensuring that the test tube containing the experimental reagent has a good light-shielding effect after being placed in the centrifuge tube sleeve.

[0008] Furthermore, the centrifuge tube housing body is provided with a base at its bottom, which contains a hollow accommodating cavity within which a weight is placed. The weight increases the mass of the base, thereby preventing the centrifuge tube housing body from tipping over when placed on a work surface, ensuring the stability of the centrifuge tube within the housing body and facilitating the use of a single centrifuge tube when placed on a work surface.

[0009] The upper surface of the base is provided with a groove which is sunken toward the bottom of the base, and the groove is adapted to the bottom of the centrifuge tube sleeve.

[0010] Furthermore, the center of gravity of the weighted object is aligned with the center of the centrifuge tube housing, making the housing more stable when the test tube is inserted into the housing and placed on a horizontal surface. This prevents the housing and the test tube placed therein from tipping over or rolling under minor collisions, thereby protecting the centrifuge tube and further increasing the service life of the centrifuge tube. The weighted object is an iron block.

[0011] Furthermore, an ear support is fixedly mounted on the outer wall of the centrifuge tube housing near the top, making it convenient for the user to take the test tube for observation at any time during use.

[0012] When it is necessary to observe the reagent in the test tube, the experimenter can pull the test tube containing the reagent with one hand and pull the ear support in the opposite direction with the other hand to easily take out the test tube.

[0013] Furthermore, a pressure-equalizing hole is provided at the bottom of the centrifuge tube sleeve body, communicating with the interior thereof. When a centrifuge tube is inserted into the centrifuge tube sleeve body, a pressure difference is generated between the inside and outside of the centrifuge tube sleeve body, making insertion of the centrifuge tube difficult. By providing the pressure-equalizing hole, connecting the inside and outside of the centrifuge tube sleeve body, the centrifuge tube is protected from pressure during use.

[0014] A light-proof centrifuge tube rack comprises a centrifuge tube sleeve body and a centrifuge tube rack body for placing the centrifuge tube sleeve body. The centrifuge tube sleeve body is hollow with an open top for accommodating centrifuge tubes. The centrifuge tube sleeve body is made of light-proof plastic. The centrifuge tube rack body is provided with multiple rows of centrifuge tube sleeve placement grooves with open tops along its length direction. The centrifuge tube sleeve placement grooves are adapted to the structure of the centrifuge tube sleeve body. The lower parts of two adjacent centrifuge tube sleeve placement grooves in each row are connected by a connecting hole communicating with the interior thereof, and at least one centrifuge tube sleeve placement groove is provided with a vent extending to the outside of the centrifuge tube rack body at the lower part.

[0015] Furthermore, the diameter of the centrifuge tube sleeve placement groove is 10 mm larger than the diameter of the centrifuge tube sleeve body. This facilitates the insertion of the centrifuge tube sleeve body while preventing an excessive gap between the outer wall of the centrifuge tube sleeve and the centrifuge tube sleeve placement groove. This provides good support for the centrifuge tube sleeve body and provides dual light protection for the test tubes placed therein.

[0016] A method for producing a light-proof centrifuge tube sleeve, which is used to produce the light-proof centrifuge tube sleeve, comprises the following steps:

[0017] S1: Make corresponding test tube molds according to test tubes of different specifications and models;

[0018] S2: Use the test tube mold to cast the corresponding test tube model 1 and test tube model 2, increase the fixed thickness on the periphery of the test tube model 1 for secondary casting to cast a molded pressed part; during casting, liquid iron is used for casting, and the liquid iron after casting and cooling will not fuse with the plastic material of the casting centrifuge sleeve body, which can ensure the casting quality of the centrifuge sleeve body.

[0019] It should be noted that the fixed thickness value added to the periphery of the test tube model is the wall thickness of the centrifuge tube sleeve body.

[0020] S3: making a corresponding molded part according to the cast molded part;

[0021] S4: pouring light-proof plastic into the molding mold, and then inserting the second test tube model into the light-proof plastic, wherein the upper surface of the second test tube model is on the same horizontal plane as the upper surface of the molding mold, and the second test tube model is coaxially placed with the molding mold;

[0022] S5: After cooling and forming, the test tube model 2 is pulled out and the plastic part in the mold in S4 is taken out. The plastic part is the formed centrifuge tube sleeve body. In this production method, the test tube mold, the molding press, and the molding press mold can be reused to repeatedly produce centrifuge tube sleeve bodies of different sizes.

[0023] A method for producing a light-proof centrifuge tube rack, which is used to produce the light-proof centrifuge tube rack, comprises the following steps:

[0024] S1: Making corresponding centrifuge tube sleeve body molds according to different models of centrifuge tube sleeve bodies;

[0025] S2: pouring casting liquid into the centrifuge tube sleeve body mold to make a centrifuge tube sleeve model; it should be noted that the casting liquid here is liquid iron, and there will be no fusion between the liquid iron after casting and cooling and the light-shielding plastic material of the centrifuge tube rack body, which can ensure the casting quality of the centrifuge tube rack body and facilitate demolding the centrifuge tube sleeve model on it after the centrifuge tube rack body is cooled.

[0026] S3: Pour light-proof plastic into a pre-prepared molding box, and vertically place multiple centrifuge tube sleeve models in S2 in the molding box, leaving a certain distance from the molding box body; the centrifuge tube rack body is also injection-molded with light-proof plastic material. After the test tube is placed in the centrifuge tube sleeve body, it is placed on the centrifuge tube rack body. The centrifuge tube rack body can provide secondary light-proof protection for it, further ensuring that the test tube is always in a light-proof state.

[0027] S4: After cooling and demoulding, the centrifuge tube rack body is formed.

[0028] Beneficial effects of the utility model:

[0029] 1. The centrifuge tube sleeve body of the present invention is made of light-proof plastic material. The test tube containing the experimental reagent is completely inserted into the centrifuge tube sleeve body from the opening on the centrifuge tube sleeve body. The light-proof plastic material of the centrifuge tube sleeve body can protect the reagent in the test tube from light. The split design of the centrifuge tube sleeve body and the centrifuge tube can also ensure that the reagent in the test tube is protected from light while observing the condition of the coupled antibody in the test tube in real time, thereby promoting efficient testing and reducing testing costs.

[0030] 2. In the present invention, the centrifuge tube body, the base and the weighting object cooperate with each other. After the test tube is vertically inserted into the centrifuge tube body, the centrifuge tube body can stand vertically on the workbench under the support of the base. The weighting object can increase the mass of the base and effectively prevent the centrifuge tube body from tipping over.

[0031] 3. In the present invention, the centrifuge tube rack body is compatible with the centrifuge tube sleeve body, making it convenient to insert and take out the centrifuge tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic cross-sectional view of the overall structure of the centrifuge sleeve body according to one embodiment of the present invention;

[0033] Figure 2 This is a schematic cross-sectional view of the overall structure of the centrifuge tube rack body according to one embodiment of the present invention;

[0034] Figure 3This is a schematic top cross-sectional view of the overall structure of the centrifuge tube rack body according to one embodiment of the present invention;

[0035] In the figure: 1. Centrifuge tube sleeve body; 2. Base; 3. Weight; 4. Accommodation cavity; 5. Ear support; 6. Pressure equalizing hole; 7. Centrifuge tube rack body; 8. Centrifuge tube sleeve placement slot; 9. Connection hole; 10. Vent hole. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0037] See attached Figures 1 to 2 As shown, a light-proof centrifuge tube sleeve in this embodiment includes a centrifuge tube sleeve body 1; the centrifuge tube sleeve body 1 is hollow with an open top, and is used to accommodate a centrifuge tube. When doing an experiment, the test tube containing the experimental reagent is completely inserted into the centrifuge tube sleeve body 1 from the opening on the centrifuge tube sleeve body 1. The light-proof plastic material of the centrifuge tube sleeve body 1 can make the reagent in the test tube achieve a light-proof effect, thereby promoting the efficiency of the experiment; the centrifuge tube sleeve body 1 is made of light-proof plastic material, which can make the reagent in the test tube achieve a light-proof effect, thereby promoting the efficiency of the experiment.

[0038] In some embodiments, the outer surface of the centrifuge tube sleeve is a frosted or smooth surface.

[0039] The light-shielding plastic material includes light-shielding PC material and PA plastic. A light-shielding ingredient is added to the light-shielding plastic material, so that when the centrifuge tube sleeve is subsequently cast, the cooled and formed centrifuge tube sleeve has a light-shielding function, thereby ensuring that the test tube containing the experimental reagent is well protected from light after being placed in the centrifuge tube sleeve.

[0040] It should be noted that the light-proof plastic material is not limited to the combination of the above-mentioned light-shielding PC material and PA plastic, and the plastic part can also be PPS or PEEK plastic.

[0041] The centrifuge tube housing body 1 is provided with a base 2 at its bottom. The base 2 defines a hollow chamber 4, and a weighting member 3 is disposed within the chamber 4. The weighting member 3 increases the mass of the base 2, thereby preventing the centrifuge tube housing body 1 from tipping over when placed on a work surface. This ensures the stability of the centrifuge tube within the housing body 1, making it convenient for single centrifuge tubes to be used while standing on a work surface.

[0042] The upper surface of the base 2 is provided with a groove sunken toward the bottom of the base 2 , and the groove is adapted to the bottom of the centrifuge tube sleeve.

[0043] In some embodiments, the base 2 is integrally formed with the centrifuge tube sleeve body 1 .

[0044] The center of gravity of the weighted object 3 is in a straight line with the center of the centrifuge tube sleeve body 1, so that the test tube is more stable when placed on a horizontal surface after being inserted into the centrifuge tube sleeve body 1, and the centrifuge tube sleeve body 1 and the test tube placed therein are prevented from tipping over or rolling under a slight collision, causing damage to the test tube, playing a certain protective role for the centrifuge tube, and further improving the service life of the centrifuge tube. The weighted object 3 is an iron block. It should be noted that the weighted object 3 is not limited to an iron block, and can also be other substances with higher density, as long as it can increase the weight of the base 2 and improve its stability in supporting the centrifuge tube sleeve body 1.

[0045] The outer wall of the centrifuge tube sleeve body 1 is provided with an ear support 5 near the top fixed sleeve, which is convenient for the user to take the test tube for observation at any time during use.

[0046] When the reagent in the test tube needs to be checked, the experimenter pulls the test tube containing the reagent with one hand and pulls the ear support 5 in the opposite direction with the other hand to easily take out the test tube.

[0047] In some embodiments, the ear support 5 is annular and can be integrally formed with the centrifuge tube body 1 or can be adhered to the centrifuge tube body by glue.

[0048] The centrifuge tube sleeve body 1 has a pressure equalizing hole 6 at its lower portion that communicates with the interior thereof. When a centrifuge tube is inserted into the centrifuge tube sleeve body 1, a pressure difference is generated between the inside and outside of the centrifuge tube sleeve body 1, making insertion of the centrifuge tube difficult. By providing the pressure equalizing hole 6 connecting the inside and outside of the centrifuge tube sleeve body 1, the centrifuge tube is protected from pressure during use of the centrifuge tube sleeve body 1.

[0049] In the prior art, the centrifuge tube racks used to place test tubes are all hollow structures, which will affect the light-shielding effect of the test tubes. In order to solve the above problem, this application proposes a light-shielding centrifuge tube rack, see the attached Figure 1-2 , comprising a centrifuge tube sleeve body 1 and a centrifuge tube rack body 7 for placing the centrifuge tube sleeve body, the centrifuge tube sleeve body is hollow with an open top, for accommodating centrifuge tubes, the centrifuge tube sleeve body is made of light-proof plastic, the centrifuge tube rack body 7 is provided with multiple rows of centrifuge tube sleeve placement grooves 8 with open tops along its length direction, the centrifuge tube sleeve placement grooves 8 are structurally adapted to the centrifuge tube sleeve body 1, after the centrifuge tube sleeve body 1 is loaded with test tubes, the centrifuge tube sleeve placement grooves 8 are inserted from top to bottom into the centrifuge tube sleeve placement grooves 8 from the opening at the top of the centrifuge tube sleeve placement grooves 8, the centrifuge tube rack body 7 can support the multiple inserted centrifuge tube sleeve bodies 1, making it easy to insert or take out the centrifuge tube sleeves at any time.

[0050] The lower portions of two adjacent centrifuge tube storage slots in each row are connected by a connecting hole 9 that communicates with the interior of the slots, and at least one centrifuge tube storage slot 8 has a vent hole 10 extending from the exterior of the centrifuge tube rack body 7. The provision of the connecting hole 9 and vent hole 10 maintains a stable pressure inside and outside the centrifuge tube storage slot 8, making it easier for users to insert or remove the centrifuge tube rack body 1.

[0051] In some embodiments, two rows of centrifuge tube sleeve placement slots 8 with different diameters are provided, and a vent hole 10 extending from the left side wall of the centrifuge tube rack body 7 is respectively provided at the lower portion of the two centrifuge tube sleeve placement slots 8 located near the left side wall of the centrifuge tube rack body 7 .

[0052] It should be noted that the diameters of the multiple centrifuge tube sleeve placement slots 8 are not limited, as long as they can accommodate the centrifuge tube sleeve body 1 containing 2ml, 15ml or 50ml laboratory tubes and be placed vertically therein. The provision of centrifuge tube sleeve placement slots 8 of various diameters can also improve the applicability of the centrifuge tube rack body 7.

[0053] See attached Figure 3 In other embodiments, two groups of centrifuge tube sleeve placement slots 8 are provided, one of which has a diameter of 25 mm, and the number of centrifuge tube sleeve placement slots 8 is 4, and they are symmetrically arranged in two rows; the other group has a diameter of 60 mm, and the number of centrifuge tube sleeve placement slots 8 is also 4, and they are also symmetrically arranged in two rows. The two groups of centrifuge tube sleeve placement slots 8 do not interfere with each other and are not connected. The lower parts of the two adjacent centrifuge tube sleeve placement slots 8 in each group are connected by a connecting hole 9, and at least one centrifuge tube sleeve placement slot 8 in each group has a vent hole 10 connected to the outside of the centrifuge tube rack body 7 at the lower part.

[0054] The diameter of the centrifuge tube sleeve placement groove 8 is 10 mm larger than the diameter of the centrifuge tube sleeve body 1. While facilitating the insertion of the centrifuge tube sleeve body 1, the distance between the outer wall of the centrifuge tube sleeve and the centrifuge tube sleeve placement groove 8 is not too large, and the centrifuge tube sleeve body 1 can be well supported. At the same time, the test tubes placed therein can be protected from light.

[0055] A method for producing a light-proof centrifuge tube sleeve, which is used to produce the light-proof centrifuge tube sleeve, comprises the following steps:

[0056] S1: Make corresponding test tube molds according to test tubes of different specifications and models;

[0057] S2: Use the test tube mold to cast the corresponding test tube model 1 and test tube model 2, increase the fixed thickness on the periphery of the test tube model 1 for secondary casting to cast a molded pressed part; during casting, liquid iron is used for casting, and there will be no fusion between the liquid iron after casting and the plastic material of the casting centrifuge sleeve body 1, which can ensure the casting quality of the centrifuge sleeve body 1.

[0058] It should be noted that the fixed thickness value added to the periphery of the test tube model is the wall thickness of the centrifuge tube sleeve body 1 .

[0059] S3: making a corresponding molded part according to the cast molded part;

[0060] S4: pouring light-proof plastic into the molding mold, and then inserting the second test tube model into the light-proof plastic, wherein the upper surface of the second test tube model is on the same horizontal plane as the upper surface of the molding mold, and the second test tube model is coaxially placed with the molding mold;

[0061] S5: After cooling and forming, the test tube model 2 is pulled out and the plastic part in the mold in S4 is taken out. The plastic part is the formed centrifuge tube sleeve body 1. In this production method, the test tube mold, the molding press and the molding press mold can be reused to repeatedly produce centrifuge tube sleeve bodies 1 of different sizes.

[0062] In some embodiments, after the centrifuge tube sleeve body 1 is formed, the outside of the centrifuge tube sleeve body 1 can be polished with sandpaper to make its surface frosted, thereby increasing its surface friction and making it easier for users to pick up.

[0063] In some embodiments, after the centrifuge tube sleeve body 1 is cast, a pressure-equalizing hole 6 can be penetrated at its lower portion by a heated iron wire.

[0064] In some embodiments, for a centrifuge tube sleeve body 1 having a base 2 disposed at the bottom, and the base 2 is disposed separately from the centrifuge tube sleeve body 1, the base 2 can be manufactured first and then fixedly connected. During casting, an iron core is placed inside the base 2, and then casting liquid is poured in to cover the iron core. It should be noted that the shape of the base 2 is not limited, as long as it can be placed stably on a horizontal surface and its upper surface is compatible with the centrifuge tube sleeve body 1.

[0065] A method for producing a light-proof centrifuge tube rack, which is used to produce the light-proof centrifuge tube rack, comprises the following steps:

[0066] S1: making a corresponding centrifuge tube sleeve body 1 mold according to different models of centrifuge tube sleeve body 1;

[0067] S2: pouring casting liquid into the mold of the centrifuge tube sleeve body 1 to make a centrifuge tube sleeve model; it should be noted that the casting liquid here is liquid iron, and there will be no fusion between the liquid iron after casting and cooling and the light-shielding plastic material of the casting centrifuge tube rack body 7, which can ensure the casting quality of the centrifuge tube rack body 7 and facilitate demolding the centrifuge tube sleeve model on it after the centrifuge tube rack body 7 is cooled.

[0068] S3: Pour the light-proof plastic into the pre-prepared molding box, and vertically place the multiple centrifuge tube sleeve models in S2 in the molding box, leaving a distance from the molding box body; the injection molding of the centrifuge tube rack body 7 is also made of light-proof plastic material. After the test tube is placed in the centrifuge tube sleeve body 1, it is placed on the centrifuge tube rack body 7. The centrifuge tube rack body 7 can provide secondary light-proof protection for it, further ensuring that the test tube is always in a light-proof state.

[0069] S4: After cooling and demoulding, the centrifuge tube rack body 7 is formed.

[0070] It should be noted that the connecting holes 9 adjacent to the centrifuge tube sleeve placement slots 8 on the formed centrifuge tube rack body 7 and the vent holes 10 between the centrifuge tube sleeve placement slots 8 and the centrifuge tube rack body 7 can be formed by penetrating heated iron wire.

[0071] The above implementation methods are only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.

Claims

1. A light-proof centrifuge tube sleeve, characterized in that: It comprises a centrifuge tube sleeve body; the centrifuge tube sleeve body is hollow with an open top for accommodating a centrifuge tube, and the centrifuge tube sleeve body is made of light-proof plastic material.

2. The light-proof centrifuge tube sleeve according to claim 1, characterized in that: The light-proof plastic material includes light-shielding PC material and PA plastic.

3. The light-proof centrifuge tube sleeve according to claim 1, characterized in that: A base is provided at the bottom of the centrifuge tube sleeve body. The interior of the base is a hollow accommodating cavity, and a weight is provided in the accommodating cavity.

4. The light-proof centrifuge tube sleeve according to claim 3, characterized in that: The center of gravity of the weight-increasing object is in a straight line with the center of the centrifugal tube sleeve body, and the weight-increasing object is an iron block.

5. The light-proof centrifuge tube sleeve according to claim 1, characterized in that: An ear support is provided on the outer wall of the centrifuge tube sleeve body near the top fixed sleeve.

6. The light-proof centrifuge tube sleeve according to claim 1, characterized in that: The lower part of the centrifugal tube sleeve body is provided with a pressure equalizing hole communicated with the interior thereof.

7. A light-proof centrifuge tube rack, characterized in that: The invention comprises a centrifuge tube sleeve body and a centrifuge tube rack body for placing the centrifuge tube sleeve body. The centrifuge tube sleeve body is hollow with an open top for accommodating centrifuge tubes. The centrifuge tube sleeve body is made of light-proof plastic. The centrifuge tube rack body is provided with multiple rows of centrifuge tube sleeve placement grooves with open tops along its length direction. The centrifuge tube sleeve placement grooves are adapted to the structure of the centrifuge tube sleeve body. The lower parts of two adjacent centrifuge tube sleeve placement grooves in each row are connected by a connecting hole communicating with the interior thereof, and the lower part of at least one centrifuge tube sleeve placement groove is provided with a vent extending to the outside of the centrifuge tube rack body.

8. The light-proof centrifuge tube rack according to claim 7, characterized in that: The diameter of the centrifuge tube sleeve placement groove is 10 mm larger than the diameter of the centrifuge tube sleeve body.

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