Test tube rack
By installing a self-tightening clamping component inside the test tube rack, the plate is automatically clamped by using the gravity of the test tubes. This solves the problem of bumps and breakage caused by gaps in the test tube rack and improves the stability and safety of the test tubes during the delivery process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI MEDICAL UNIV SCHOOL OF CLINICAL MEDICINE
- Filing Date
- 2025-03-07
- Publication Date
- 2026-05-01
AI Technical Summary
The existing test tube racks have gaps between the test tubes during the testing process, which may cause the test tubes to bump or break, resulting in liquid spillage or chemical reactions.
Design a test tube rack with multiple cavities and a self-tightening clamping assembly. The test tubes are automatically clamped and fixed by the first and second plates moving along the guide rails driven by their own weight. Stable clamping is achieved by the hinged rotation of elastic elements and rods.
This effectively avoids shaking and bumping of test tubes during the testing process, improves the stability of the test tubes, prevents breakage and chemical reactions, and ensures the safety of the testing process.
Smart Images

Figure CN224180922U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary equipment technology, and in particular to a test tube rack. Background Technology
[0002] A test tube rack is a device used to place and hold test tubes. It typically has multiple holes or grooves, and these structures can be designed according to the size and shape of the test tubes to ensure stable placement.
[0003] Test tube racks are divided into plastic, wooden, and metal types. Depending on the type and aperture, test tubes of different diameters need to be inserted into the corresponding racks. Common test tube racks can hold test tubes with diameters of 15-20mm. However, since there is always a gap between the test tubes and the rack, the test tubes may bump into each other during the testing process, which can cause liquid to spill or even break. Therefore, further improvements are needed. Utility Model Content
[0004] To address the technical problems existing in the background art, this utility model proposes a test tube rack.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A test tube rack, characterized in that it comprises:
[0007] The test tube rack body has multiple cavities, and guide rails are horizontally arranged inside the cavities.
[0008] Multiple sets of self-tightening clamping components are arranged one-to-one within multiple cavities. Each set of self-tightening clamping components includes:
[0009] The base is movably installed inside the cavity and can move along the extension direction of the cavity. The base has a groove and is connected to the test tube rack body through a first elastic element.
[0010] The first plate is movably mounted on the guide rail and can move along the guide rail. The first plate is connected to the cavity through the second elastic element.
[0011] The first rod has its two ends hinged to the first plate and the base, respectively.
[0012] The second plate is movably mounted on the guide rail and can move along the guide rail. The second guide rail and the cavity are connected by a third elastic element.
[0013] The second rod has its two ends hinged to the second plate and the base, respectively.
[0014] When the bottom of the test tube contacts the groove on the base, the test tube and the sample inside it are subjected to their own weight, and the first rod and the second rod rotate through the hinge, so as to drive the first plate and the second plate to move towards each other along the guide rail, so as to complete the clamping of the test tube.
[0015] Preferably, a first opening is provided on the first plate, and a second opening is provided on the second plate opposite to the first opening. A buffer layer is provided at the positions of both the first and second openings.
[0016] Preferably, the first plate is provided with a first connecting part, and the second plate is provided with a second connecting part. Both the first connecting part and the second connecting part are adapted to the guide rail, and the thickness of the first connecting part and the second connecting part gradually decreases in the direction away from the guide rail.
[0017] Preferably, the inner wall of the groove of the base is provided with a protective layer.
[0018] Preferably, the hinge axes at both ends of the first rod and the hinge axes at both ends of the second rod are parallel to each other.
[0019] Preferably, the first plate and the second plate are arranged symmetrically about the axis of the cavity.
[0020] Preferably, the first elastic element, the second elastic element, and the third elastic element are all made of polyurethane material.
[0021] Compared with the prior art, the beneficial effects of this utility model are:
[0022] Compared with existing technologies, by setting a self-tightening clamping component in the cavity, the test tubes inside the cavity can be automatically clamped and fixed according to their own weight. This avoids unnecessary collisions and losses caused by gaps between the test tubes and the test tube rack body during the testing process due to differences in test tube diameter. It also avoids the danger caused by reactions between reagents with different chemical components due to test tube breakage. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the test tube rack proposed in this utility model;
[0024] Figure 2 This is a top view of the test tube rack proposed in this utility model;
[0025] Figure 3 This is a top view of the first plate in the test tube rack proposed in this utility model;
[0026] Figure 4 This is a side view of the first plate in the test tube rack proposed in this utility model;
[0027] Figure 5This utility model Figure 1 A magnified structural diagram of point A in the middle.
[0028] In the figure: 1-test tube rack body, 11-cavity, 111-guide rail, 2-base, 21-groove, 3-first rod, 4-first elastic element, 5-first plate, 51-first opening, 52-first connecting part, 6-second elastic element, 7-second rod, 8-second plate, 9-third elastic element. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] like Figures 1-5 As shown, this embodiment provides a test tube rack, including:
[0031] The test tube rack body 1 has multiple cavities 11, and guide rails 111 are horizontally arranged inside the cavities 11.
[0032] Multiple sets of self-tightening clamping components are arranged one-to-one within multiple cavities 11. Each set of self-tightening clamping components includes:
[0033] The base 2 is movably installed inside the cavity 11. The base 2 can move along the extension direction of the cavity 11. The base 2 has a groove 21. The base 2 is connected to the test tube rack body 1 through the first elastic element 4.
[0034] The first plate 5 is movably mounted on the guide rail 111 and can move along the direction of the guide rail 111. The first plate 5 is connected to the cavity 11 by the second elastic member 6.
[0035] The first rod 3 has its two ends hinged to the first plate 5 and the base 2, respectively.
[0036] The second plate 8 is movably mounted on the guide rail 111 and can move along the direction of the guide rail 111. The second guide rail 111 and the cavity 11 are connected by a third elastic member 9.
[0037] The second rod 7 has its two ends hinged to the second plate 8 and the base 2, respectively.
[0038] When the bottom of the test tube contacts the groove 21 on the base 2, the test tube and the sample to be tested inside it are subjected to their own weight, and the first rod 3 and the second rod 7 are hinged and rotated to drive the first plate 5 and the second plate 8 to move towards each other along the guide rail 111, so as to complete the clamping of the test tube.
[0039] Overall, when the test tube is placed into the cavity 11, as the test tube extends into the cavity 11 and contacts the base 2 at the bottom of the cavity 11, the base 2 moves vertically downward along the cavity 11 under the weight of the test tube and the sample to be tested inside. As the base 2 moves, the first plate 5 moves along the guide rail 111 towards the end closer to the second plate 8 under the action of the first rod 3. The second plate 8 moves along the guide rail 111 towards the end closer to the first plate 5 under the action of the second rod 7. The movement of the first plate 5 and the second plate 8 towards each other along the guide rail 111 clamps and fixes the outer wall of the test tube. This prevents unnecessary shaking of the test tube during the delivery of the test tube rack due to the test tube diameter not being fully matched with the diameter of the cavity 11, thus protecting the test tube and improving its stability during delivery.
[0040] like Figure 1 and Figure 3 As shown, in this embodiment, a first opening 51 is provided on the first plate 5, and a second opening is provided on the second plate 8 opposite to the first opening 51. A buffer layer is provided at the positions of both the first opening 51 and the second opening.
[0041] Specifically, the first plate 5 has a first opening 51, and the second plate 8 has a second opening. By setting the first opening 51 and the second opening to fit the shape of the test tube, as the test tube goes into the cavity 11 and comes into contact with the base 2, the first plate 5 can move along the guide rail 111 towards the end of the second plate 8 under the action of the first rod 3. Under the action of the second rod 7, the second plate 8 can move along the guide rail 111 towards the end of the first plate 5. As the first plate 5 and the second plate 8 move towards each other along the guide rail 111, and are clamped and fixed by the first opening 51 and the second opening, the stability of the test tube inside the cavity 11 can be further improved under the buffering cooperation of the buffer layer, and the shaking of the test tube during the delivery process can be avoided.
[0042] like Figures 3-4 As shown, in this embodiment, the first plate 5 is provided with a first connecting part 52, and the second plate 8 is provided with a second connecting part. Both the first connecting part 52 and the second connecting part are adapted to the guide rail 111. The thickness of the first connecting part 52 and the second connecting part gradually decreases in the direction away from the guide rail 111.
[0043] The buffer layer can be made of rubber with good chemical stability to suit medical environments. The specific type of rubber material is selected based on the actual situation and is not limited here.
[0044] Specifically, the first plate 5 is provided with a first connecting part 52, and the second plate 8 is provided with a second connecting part. The thickness of the first connecting part 52 and the second connecting part gradually decreases in the direction away from the guide rail 111, which can make the movable connection between the first plate 5 and the second plate 8 and the guide rail 111 more stable and improve the stability of the first plate 5 and the second plate 8 during the movement along the guide rail 111.
[0045] like Figure 2 As shown, in this embodiment, the inner wall of the groove 21 of the base 2 is provided with a protective layer.
[0046] Specifically, the inner wall of the base 2 is provided with a protective layer, which can provide a certain buffer when the test tube comes into contact with the groove 21, reduce the rigid impact between the test tube and the base 2, and protect the bottom of the test tube.
[0047] The protective layer can be made of rubber with good chemical stability to suit medical environments. The specific type of rubber material will be selected based on the actual situation and will not be restricted here.
[0048] like Figure 1 and Figure 5 As shown, in this embodiment, the hinge axes at both ends of the first rod 3 and the hinge axes at both ends of the second rod 7 are parallel to each other.
[0049] Specifically, the hinge shafts at both ends of the first rod 3 and the hinge shafts at both ends of the second rod 7 are parallel to each other, which can ensure the continuity of the first rod 3 and the second rod 7 during rotation and improve the stability of the self-tightening clamping assembly in the process of clamping and fixing the test tube.
[0050] like Figure 1 and Figure 5 As shown, in this embodiment, the first plate 5 and the second plate 8 are arranged symmetrically about the axis of the cavity 11.
[0051] Specifically, the first plate 5 and the second plate 8 are symmetrically arranged about the axis of the cavity 11. When the bottom of the test tube contacts the groove 21 of the base 2, under the action of the weight of the test tube and the sample to be tested inside, and under the action of the first rod 3, the first plate 5 can move towards the end of the second plate 8 along the direction of the guide rail 111. Under the action of the second rod 7, the second plate 8 can move towards the end of the first plate 5 along the direction of the guide rail 111. By moving the first plate 5 and the second plate 8 towards each other along the direction of the guide rail 111, the outer wall of the test tube can be clamped and fixed. The symmetrical arrangement of the first plate 5 and the second plate 8 can make the test tube uniformly stressed in the cavity 11.
[0052] like Figure 1 and Figure 5 As shown, in this embodiment, the first elastic element 4, the second elastic element 6, and the third elastic element 9 are all made of polyurethane material.
[0053] Specifically, the first elastic element 4, the second elastic element 6, and the third elastic element 9 are all made of polyurethane material, which has good chemical resistance, making them safer to use in medical environments.
[0054] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0056] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.
Claims
1. A rack for test tubes, characterized in that include: The test tube rack body (1) has multiple cavities (11) and guide rails (111) are horizontally arranged inside the cavities (11). Multiple sets of self-tightening clamping assemblies are arranged one-to-one in multiple cavities (11), and each set of self-tightening clamping assemblies includes: The base (2) is movably installed in the cavity (11). The base (2) can move along the extension direction of the cavity (11). The base (2) has a groove (21). The base (2) is connected to the test tube rack body (1) through the first elastic element (4). The first plate (5) is movably mounted on the guide rail (111). The first plate (5) can move along the direction of the guide rail (111). The first plate (5) and the cavity (11) are connected by the second elastic element (6). The first rod (3) has two ends that are hinged to the first plate (5) and the base (2) respectively; The second plate (8) is movably mounted on the guide rail (111). The second plate (8) can move along the direction of the guide rail (111). The second guide rail (111) and the cavity (11) are connected by a third elastic element (9). The second rod (7) has its two ends hinged to the second plate (8) and the base (2) respectively; When the bottom of the test tube contacts the groove (21) on the base (2), the test tube and the sample to be tested inside it are subjected to their own weight, and the first rod (3) and the second rod (7) are rotated by hinge, so as to drive the first plate (5) and the second plate (8) to move towards each other along the guide rail (111) to complete the clamping of the test tube.
2. The test tube rack of claim 1, wherein, The first plate (5) has a first opening (51), and the second plate (8) has a second opening that is opposite to the first opening (51). Both the first opening (51) and the second opening are provided with a buffer layer.
3. The test tube rack of claim 2, wherein, The first plate (5) is provided with a first connecting part (52), and the second plate (8) is provided with a second connecting part. Both the first connecting part (52) and the second connecting part are adapted to the guide rail (111). The thickness of the first connecting part (52) and the second connecting part gradually decreases in the direction away from the guide rail (111).
4. The test tube rack according to claim 1, characterized in that, The inner wall of the groove (21) of the base (2) is provided with a protective layer.
5. The test tube rack of claim 1, wherein, The hinge axes at both ends of the first rod (3) and the hinge axes at both ends of the second rod (7) are parallel to each other.
6. The test tube rack according to claim 2, characterized in that, The first plate (5) and the second plate (8) are arranged symmetrically about the axis of the cavity (11).
7. The test tube rack of claim 1, wherein The first elastic element (4), the second elastic element (6), and the third elastic element (9) are all made of polyurethane material.