Test tube placing rack

Abstract

The utility model provides a test tube placing rack, which comprises a rack body assembly, which is provided with a supporting part and a rotating part which are sequentially arranged along the vertical direction, the rotating part is rotatably arranged on the supporting part, the rotating axis of the rotating part extends along the vertical direction, the rotating part is used for placing a test tube, and the rack body assembly is made of a transparent material; the illuminating part is arranged on the supporting part and is used for illuminating the test tube; and the light shielding cover is arranged outside the rack body assembly in a covering manner so as to prevent an external light source from irradiating the test tubes. According to the technical scheme provided by the utility model, the problems that a test tube placing rack in the prior art cannot rotate, and test tubes are inconvenient to observe can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to a test tube placement rack. Background Art

[0002] Test tubes are used for various experiments and are also indispensable tools when using coal to produce chemical products. Test tube racks are used to support and place test tubes and are common equipment in chemical experiments.

[0003] Conventional test tube racks typically consist of a lower bracket and an upper support frame. Test tubes are placed on the rack, which is then placed on a workbench. However, this design prevents rotation, making it inconvenient for observing biochemical reactions within the test tubes. Furthermore, some colorimetric analyses require color development in the dark, which requires moving the colorimetric tube rack to a dark location, making operation relatively cumbersome. Utility Model Content

[0004] The utility model provides a test tube placement rack, which solves the problem in the prior art that the test tube placement rack cannot be rotated and is inconvenient for observing the test tubes.

[0005] The utility model provides a test tube placement rack, which comprises: a rack assembly, which has a supporting part and a rotating part which are sequentially arranged in a vertical direction, the rotating part being rotatably arranged on the supporting part, the rotating axis of the rotating part extending in the vertical direction, the rotating part being used for placing the test tube, and the rack assembly being made of a transparent material; a lighting component which is arranged on the supporting part and is used for illuminating the test tube; and a light-shielding cover which is arranged outside the rack assembly to prevent external light sources from irradiating the test tube.

[0006] Furthermore, the frame assembly also includes a rotating assembly, which is arranged between the rotating part and the supporting part. The rotating assembly extends in a vertical direction. The rotating assembly includes a first connecting member, a second connecting member and a first bearing. The first bearing is arranged between the first connecting member and the second connecting member. The first connecting member is connected to the supporting part, the second connecting member is connected to the rotating part, and the first rotating member rotates relative to the second connecting member through the first bearing.

[0007] Furthermore, the frame assembly also includes an auxiliary support member, which has a fixed end and a rotating end. The rotating end can rotate relative to the fixed end, the rotation axis of the rotating end is horizontally arranged, the fixed end is connected to the support part, and the rotating end abuts against the rotating part.

[0008] Furthermore, the auxiliary support member includes: a mounting seat, which is arranged on the side of the supporting part facing the rotating part, and the mounting seat forms a fixed end; a straight rod, which is arranged on the mounting seat along the horizontal direction; a second bearing, which is passed through the outer circumference of the straight rod, and the second bearing has a second inner ring and a second outer ring, the second inner ring is passed through the straight rod, the second outer ring is sleeved on the outside of the second inner ring, and rotates relative to the second inner ring, the second outer ring is used to abut against the side of the rotating part facing the supporting part, and the second bearing forms a rotating end.

[0009] Furthermore, the rotating assembly includes: a support shaft extending in a vertical direction, the bottom of the support shaft is connected to the support part, and the support shaft forms a first connecting member; a first sleeve is sleeved on the outside of the support shaft, the first sleeve can rotate relative to the support shaft, the first sleeve is connected to the rotating part, and the first sleeve forms a second connecting member.

[0010] Furthermore, the supporting portion includes a lighting layer and a supporting layer spaced apart in the vertical direction, the supporting layer is arranged close to the rotating portion, the mounting seat and the supporting shaft are both arranged on the supporting layer, and the lighting component is arranged on the lighting layer.

[0011] Furthermore, the rotating part includes a connecting layer and a placement layer spaced apart in the vertical direction, the connecting layer is arranged close to the supporting layer, the first sleeve is passed through the connecting layer, and the bottom of the first sleeve is connected to the connecting layer, and the top of the first sleeve is connected to the placement layer.

[0012] Furthermore, a plurality of placement layers are arranged at intervals along the vertical direction, the plurality of placement layers are connected to each other, a plurality of through holes are provided on each placement layer, and the plurality of through holes on adjacent placement layers are arranged in a one-to-one correspondence.

[0013] Furthermore, the frame assembly also includes a second sleeve and a third sleeve. The second sleeve is arranged on the periphery of the lighting layer and the supporting layer, and the third sleeve is sleeved on the periphery of the lighting layer and the supporting layer.

[0014] Furthermore, there are multiple auxiliary support members, and the multiple auxiliary support members are arranged on the support layer, and the multiple auxiliary support members are distributed at intervals along the circumference of the support shaft.

[0015] Applying the technical solution of the present invention, the frame assembly has a support portion and a rotating portion arranged in sequence along the vertical direction, and the rotating portion is rotatably arranged on the support portion. When the test tube is placed, the test tube mouth is generally facing upward, so that the direction of the test tube mouth of the test tube will not change when the rotating portion rotates, thereby preventing the contents of the test tube from spilling out when the rotating portion rotates. The frame assembly is made of transparent material to prevent the frame assembly from blocking the test tube so that the operator cannot observe the contents of the test tube. A lighting component is also provided on the support portion, and the lighting component is used to illuminate the test tube, further facilitating the operator to observe the contents of the test tube through the lighting component. The lighting component is arranged below the test tube and does not occupy the space of the rotating portion, enabling a larger number of test tubes to be placed on the rotating portion, thereby improving the space utilization rate of the frame assembly. The test tube placement rack also includes a light shield to prevent external light sources from shining on the test tube. Through the above arrangement, the rotating part can drive the test tube to rotate, making it convenient for the operator to observe the items in the test tube. The light-shielding cover can protect the test tube from light. There is no need to move the position of the test tube placement rack. The operation is very convenient and improves the convenience for the operator to observe the items in the test tube or chemical reactions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It shows a structural schematic diagram of the frame group provided by the utility model;

[0018] Figure 2 The structure diagram of the light shield provided by the utility model is shown;

[0019] Figure 3 The figure shows the installation diagram of the auxiliary support assembly, the rotating assembly and the support layer provided by the present invention.

[0020] The above drawings include the following reference numerals:

[0021] 11. Support part;

[0022] 111. Lighting layer; 112. Support layer;

[0023] 12. Rotating part;

[0024] 121, connection layer; 122, placement layer;

[0025] 123, through hole;

[0026] 13. Rotating assembly;

[0027] 131, first bearing;

[0028] 132, support shaft;

[0029] 133, first sleeve;

[0030] 14. Auxiliary support parts;

[0031] 141. Mounting seat; 142. Second bearing;

[0032] 15. Second sleeve; 16. Third sleeve;

[0033] 20. Lighting components;

[0034] 30. Light shield. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figures 1 to 3 As shown, an embodiment of the utility model provides a test tube rack, which includes: a rack assembly, a lighting component 20 and a light shield 30. The rack assembly has a support portion 11 and a rotating portion 12 arranged in sequence along the vertical direction. The rotating portion 12 is rotatably arranged on the support portion 11. The rotation axis of the rotating portion 12 extends along the vertical direction. The rotating portion 12 is used to place the test tube, and the rack assembly is made of a transparent material. The lighting component 20 is arranged on the support portion 11, and the lighting component 20 is used to illuminate the test tube. The light shield 30 is arranged on the outside of the rack assembly to prevent external light sources from irradiating the test tube.

[0037] Using the technical solution of the present invention, the rack assembly comprises a support portion 11 and a rotating portion 12 arranged in sequence along a vertical direction, with the rotating portion 12 rotatably mounted on the support portion 11. When placed, the test tubes are generally positioned with their openings facing upwards. This ensures that the orientation of the test tube openings does not change during the rotation of the rotating portion 12, thereby preventing the contents from spilling out. The rack assembly is made of a transparent material to prevent the rack assembly from obstructing the test tubes, preventing the operator from observing the contents. A lighting element 20 is also provided on the support portion 11. The lighting element 20 is used to illuminate the test tubes, further facilitating the operator's observation of the contents through the lighting element 20. The lighting element 20 is disposed below the test tubes and does not occupy space on the rotating portion 12. This allows for a greater number of test tubes to be placed on the rotating portion 12, thereby improving the space utilization of the rack assembly. The test tube rack also includes a light shield 30 to prevent external light sources from shining on the test tubes. Through the above-mentioned arrangement, the rotating part 12 can drive the test tube to rotate, making it convenient for the operator to observe the items in the test tube. The lighting component 20 can improve the accuracy of the operator's observation of the internal situation of the test tube. The light-shielding cover 30 can protect the test tube from light. There is no need to move the position of the test tube placement rack. The operation is very convenient and improves the convenience of the operator in observing the items in the test tube or chemical reactions.

[0038] In this embodiment, the test tube is a colorimetric tube used for colorimetric analysis experiments in the production of chemical products from coal. The lighting component 20 uses an LED lamp, which is convenient for disassembly and assembly and saves experimental costs.

[0039] In other embodiments, the test tubes may be other types of test tubes, which can be selected according to different experimental requirements. The lighting element 20 may be other types of lighting lamps.

[0040] Specifically, the frame assembly can be made of a transparent acrylic plate with a thickness of 3 mm, the light shield 30 is made of black plastic material, and a handle is installed on the outer side wall to facilitate the operator to move the position of the light shield 30.

[0041] like Figure 1As shown, the frame assembly also includes a rotating assembly 13, which is arranged between the rotating part 12 and the support part 11. The rotating assembly 13 extends in the vertical direction. The rotating assembly 13 includes a first connecting member, a second connecting member and a first bearing 131. The first bearing 131 is arranged between the first connecting member and the second connecting member. The first connecting member is connected to the support part 11, and the second connecting member is connected to the rotating part 12. The first rotating member rotates relative to the second connecting member through the first bearing 131. By arranging the first bearing between the first connecting member and the second connecting member, this arrangement simplifies the structure of the rotating assembly 13 and facilitates assembly. At the same time, the first bearing 131 can make the rotation of the rotating part 12 smoother and reduce jamming during rotation. In addition, the above-mentioned design of the first connecting member and the second connecting member is a sleeve structure, which can reduce the space occupied by the rotating assembly in the horizontal direction, thereby increasing the space available for the rotating part 12 to place test tubes, thereby improving the space utilization rate of the frame assembly.

[0042] In this embodiment, the second connecting member is sleeved on the outside of the first connecting member, the first outer ring of the first bearing 131 is interference fit with the second connecting member, and the first inner ring of the first bearing 131 is interference fit with the first connecting member. In other embodiments, the first connecting member is sleeved on the outer periphery of the second connecting member.

[0043] In the present application, there is no limitation on the number of the first bearings 131 , and the number can be 1, 2, or 5.

[0044] The frame assembly further includes an auxiliary support member 14, which has a fixed end and a rotating end. The rotating end can rotate relative to the fixed end, and the rotation axis of the rotating end is arranged horizontally. The fixed end is connected to the support portion 11, and the rotating end is in contact with the rotating portion 12. By providing the auxiliary support member 14 between the support portion 11 and the rotating portion 12, not only can the stability of the support portion 11 supporting the rotating portion 12 be improved, so that the support portion 11 can provide strong support to the rotating portion 12 when the rotating portion 12 rotates, but it can also increase the contact area between the support portion 11 and the rotating portion 12, reducing the possibility of the rotating portion 12 tilting during rotation.

[0045] In this embodiment, the specific structure of the auxiliary support member 14 is not limited, and it can be configured to be a combination of multiple ball-type components or bearing-type components.

[0046] like Figure 3As shown, the auxiliary support member 14 comprises a mounting seat 141, a straight rod, and a second bearing 142. Mounting seat 141 is located on the side of the support portion 11 facing the rotating portion 12, forming the fixed end. The straight rod is horizontally mounted on mounting seat 141. A second bearing 142 is positioned along the outer circumference of the straight rod. The second bearing 142 comprises a second inner ring and a second outer ring. The second inner ring is positioned on the straight rod, while the second outer ring fits around the second inner ring and rotates relative to it. The second outer ring abuts the side of the rotating portion 12 facing the support portion 11, forming the rotating end. Consequently, when the rotating portion 12 rotates relative to the support portion 11, it drives the second outer ring of the second bearing 142 to rotate. The auxiliary support member 14 does not affect the rotation of the rotating portion 12, but rather assists in its rotation. This improves the stability of the support portion 11 while ensuring smooth and stable rotation of the rotating portion 12, thereby enhancing the reliability and practicality of the frame assembly.

[0047] like Figure 1 As shown, the rotating assembly 13 includes a support shaft 132 and a first sleeve 133. The support shaft 132 extends vertically, and the bottom of the support shaft 132 is connected to the support portion 11, forming a first connecting member. The first sleeve 133 is sleeved on the outside of the support shaft 132. The first sleeve 133 can rotate relative to the support shaft 132. The first sleeve 133 is connected to the rotating portion 12, forming a second connecting member. The first sleeve 133 can increase the contact area between the rotating assembly 13 and the rotating portion 12, thereby increasing the reliability and stability of the connection with the rotating portion 12 and preventing the rotating portion 12 from tilting during rotation.

[0048] In this embodiment, the first outer ring of the first bearing 131 is interference fit with the first sleeve 133, and the inner ring of the first bearing 131 is interference fit with the support shaft 132. Two first bearings 131 are arranged between the support shaft 132 and the first sleeve 133, one of the first bearings 131 is arranged close to the bottom of the first sleeve 133, and the other first bearing 131 is arranged close to the top of the first sleeve 133. This increases the contact area between the support shaft 132 and the first sleeve 133, and can ensure the connection effect between the first sleeve 133 and the support shaft 132.

[0049] like Figure 1As shown, the support portion 11 includes an illumination layer 111 and a support layer 112 spaced apart in the vertical direction. In this way, the support portion 11 includes a multi-layer structure, so that the support portion 11 has a certain height, which improves the stability of the support of the support portion 11 and prevents the support portion 11 from being unable to provide stable support when the rotating portion 12 rotates, causing the rotating portion 12 to shake or tilt, thereby causing the test tube to tilt or fall. The support layer 112 is arranged close to the rotating portion 12, and the mounting seat 141 and the support shaft 132 are both arranged on the support layer 112, and the lighting component 20 is arranged on the lighting layer 111. The support layer 112 and the lighting layer 111 separate the lighting component 20 from the auxiliary support member 14. The support layer 112 can also protect the lighting component 20 to prevent other components such as the auxiliary support member 14 from interfering with or damaging the lighting component 20.

[0050] like Figure 1 As shown, the rotating portion 12 includes a connecting layer 121 and a placement layer 122 spaced apart vertically. The connecting layer 121 is positioned adjacent to the support layer 112. A first sleeve 133 is disposed on the connecting layer 121, with the bottom of the first sleeve 133 connected to the connecting layer 121 and the top of the first sleeve 133 connected to the placement layer 122. This arrangement separates the placement layer 122, where test tubes are placed, from the support layer 112 via the connecting layer 121, preventing interference with the test tubes by the auxiliary support member 14. Furthermore, the connecting layer 121 provides support for the test tubes on the placement layer 122, preventing them from falling.

[0051] Specifically, the bottom of the first sleeve 133 is bonded to the connection layer 121 , and the top of the first sleeve 133 is connected to the placement layer 122 via a fastener.

[0052] Multiple placement layers 122 are vertically spaced apart and interconnected. Each placement layer 122 is provided with multiple through holes 123, and the through holes 123 on adjacent placement layers 122 are arranged in a one-to-one correspondence. This increases the overall height of the placement layers 122, increases the contact area between the placement layers 122 and the test tubes, improves the support force of the placement layers 122 on the test tubes, and further enhances the stability of the placement layers 122 in supporting the test tubes.

[0053] In this solution, there is no limitation on the number of through holes 123 and placement layers 122 .

[0054] In this embodiment, each placement layer is provided with 18 through holes 123 , and the placement layer 122 is provided with 2 through holes 123 .

[0055] Specifically, the through hole 123 is a circular through hole with a diameter of 25 mm. The through holes on each placement layer 122 have the same size.

[0056] like Figure 1As shown, the frame assembly also includes a second sleeve 15 and a third sleeve 16. The second sleeve 15 is arranged on the periphery of the lighting layer 111 and the support layer 112, and the third sleeve 16 is sleeved on the periphery of the lighting layer 111 and the support layer 112. This increases the stability of the connection between the different layers, while not occupying the internal space of each layer and not interfering with the test tubes, auxiliary support members 14, or rotating assembly 13. At the same time, the setting of the sleeve structure does not affect the operator's observation of the test tubes, ensuring the accuracy of the observation results. Specifically, there is a gap between the second sleeve 15 and the third sleeve 16 to facilitate the rotation of the rotating part 12.

[0057] There are multiple auxiliary support members 14 , which are disposed on the support layer 112 and spaced apart along the circumference of the support shaft 132 , thereby further improving the supporting effect of the support layer 112 on the connection layer 121 .

[0058] Specifically, three auxiliary support members 14 are provided on the support layer 112 , and the three auxiliary support members 14 are evenly distributed in the circumferential direction of the support shaft 132 .

[0059] In this embodiment, the mounting seat 141 is arranged in a one-to-one correspondence with the second bearing 142. In other embodiments, the mounting seat 141 can also be arranged as a single annular support structure, and the plurality of second bearings 142 are all arranged in the annular support structure.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0061] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0062] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0063] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0064] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A test tube rack, characterized in that: The test tube placement rack comprises: A frame assembly comprises a supporting portion (11) and a rotating portion (12) arranged in sequence along a vertical direction, wherein the rotating portion (12) is rotatably arranged on the supporting portion (11), and a rotating axis of the rotating portion (12) extends along a vertical direction. The rotating portion (12) is used to place a test tube, and the frame assembly is made of a transparent material; an illuminating member (20), disposed on the supporting portion (11), the illuminating member (20) being used to illuminate the test tube; A light-shielding cover (30) is arranged outside the frame assembly to prevent external light sources from irradiating the test tube.

2. The test tube rack according to claim 1, characterized in that: The frame assembly also includes a rotating assembly (13), which is arranged between the rotating part (12) and the supporting part (11). The rotating assembly (13) extends in a vertical direction. The rotating assembly (13) includes a first connecting member, a second connecting member and a first bearing (131). The first bearing (131) is arranged between the first connecting member and the second connecting member. The first connecting member is connected to the supporting part (11), and the second connecting member is connected to the rotating part (12). The first rotating member rotates relative to the second connecting member through the first bearing (131).

3. The test tube rack according to claim 2, characterized in that: The frame assembly further includes an auxiliary support member (14), the auxiliary support member (14) having a fixed end and a rotating end, the rotating end being capable of rotating relative to the fixed end, the rotating axis of the rotating end being arranged horizontally, the fixed end being connected to the support portion (11), and the rotating end being in contact with the rotating portion (12).

4. The test tube rack according to claim 3, characterized in that: The auxiliary support member (14) comprises: A mounting seat (141) is provided on a side of the support portion (11) facing the rotating portion (12), and the mounting seat (141) forms the fixed end; A straight rod, arranged on the mounting seat (141) in a horizontal direction; The second bearing (142) is passed through the outer periphery of the straight rod. The second bearing (142) has a second inner ring and a second outer ring. The second inner ring is passed through the straight rod. The second outer ring is sleeved on the outer side of the second inner ring and rotates relative to the second inner ring. The second outer ring is used to abut against the side of the rotating part (12) facing the supporting part (11). The second bearing (142) forms the rotating end.

5. The test tube rack according to claim 4, characterized in that: The rotating assembly (13) comprises: A support shaft (132) extends in a vertical direction, the bottom of the support shaft (132) is connected to the support portion (11), and the support shaft (132) forms the first connecting member; The first sleeve (133) is sleeved on the outside of the support shaft (132). The first sleeve (133) can rotate relative to the support shaft (132). The first sleeve (133) is connected to the rotating part (12). The first sleeve (133) forms the second connecting member.

6. The test tube rack according to claim 5, characterized in that: The support portion (11) comprises a lighting layer (111) and a support layer (112) arranged at intervals in a vertical direction, the support layer (112) is arranged close to the rotating portion (12), the mounting seat (141) and the support shaft (132) are both arranged on the support layer (112), and the lighting element (20) is arranged on the lighting layer (111).

7. The test tube rack according to claim 6, characterized in that: The rotating portion (12) comprises a connecting layer (121) and a placement layer (122) spaced apart in a vertical direction, the connecting layer (121) being arranged close to the supporting layer (112), the first sleeve (133) being passed through the connecting layer (121), the bottom of the first sleeve (133) being connected to the connecting layer (121), and the top of the first sleeve (133) being connected to the placement layer (122).

8. The test tube rack according to claim 7, characterized in that: A plurality of the placement layers (122) are arranged at intervals along the vertical direction, the plurality of the placement layers (122) are connected to each other, a plurality of through holes (123) are provided on each of the placement layers (122), and the plurality of through holes (123) on adjacent placement layers (122) are arranged in a one-to-one correspondence.

9. The test tube rack according to claim 6, characterized in that: The frame assembly further comprises a second sleeve (15) and a third sleeve (16), wherein the second sleeve (15) is arranged on the periphery of the lighting layer (111) and the supporting layer (112), and the third sleeve (16) is sleeved on the periphery of the lighting layer (111) and the supporting layer (112).

10. The test tube rack according to claim 6, characterized in that: There are a plurality of auxiliary support members (14), and the plurality of auxiliary support members (14) are arranged on the support layer (112), and the plurality of auxiliary support members (14) are distributed at intervals along the circumference of the support shaft (132).

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