Flip cover fixing tool of centrifugal tube

Abstract

The utility model relates to a turning cover fixing tool for a centrifugal tube, which is mounted on a test tube and comprises an elastic clamping ring and a limiting plate, the elastic clamping ring is of an annular structure, and the elastic clamping ring is detachably fixed on the test tube; the limiting plate is fixed to the elastic clamping ring, a limiting groove matched with the turning cover is formed in the side, close to the elastic clamping ring, of the limiting plate, the limiting groove is located in the side, away from a tube opening, of the centrifugal tube, and the turning cover of the centrifugal tube is movably clamped in the limiting groove. Compared with the prior art, the device has the advantages of being high in universality, convenient to operate and the like.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a centrifuge tube flip-top fixing fixture. Background Technology

[0002] EP tubes are common consumables in medical laboratories and testing departments. Their use is extremely frequent, including for storing serum samples from clinical patients and animals in clinical research, and for dispensing quality control materials in testing departments. However, traditional test tube racks often fail to effectively restrain capped EP tubes, leading to the caps easily shifting and slipping. If left unattended during testing, this can significantly damage critical components of laboratory instruments such as aspiration needles, conveyor systems, and cuvettes, greatly increasing repair costs, causing serious medical malpractice and irreparable economic losses, and affecting the accuracy and safety of experimental procedures. Furthermore, simple human handling can easily lead to infectious needlestick injuries and the risk of biological transmission.

[0003] For example, the utility model with publication number CN219129334U provides an adapter for positioning centrifuge tubes, which includes: a receiving part for accommodating the tube body; a flip-top limiting part for limiting the flip-top of the centrifuge tube; and a connecting part for connecting the adapter to a sample holder.

[0004] However, the existing centrifuge tube positioning adapters, centrifuge tube and cap adapters do not have good fixing and adjustment functions, and are only suitable for test tubes of specific sizes. Their application range is limited and they are not easy to adjust. On the other hand, the caps of EP tubes on the test tube rack adapters are lifted upwards, resulting in an excessively large contact surface, which can easily lead to contamination of the EP tube caps. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, such as the adapter being only suitable for test tubes of a specific size, inconvenient adjustment, limited applicability, and the centrifuge tube being easily contaminated when the flip-top is lifted and positioned. Therefore, this invention provides a centrifuge tube flip-top fixing fixture.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A centrifuge tube flip-top fixing fixture is installed on a test tube, the fixture including an elastic clamping ring and a limiting plate;

[0008] The elastic clamping ring is a ring structure and can be detachably fixed to the test tube; the limiting plate is fixed to the elastic clamping ring, and the limiting plate has a limiting groove that cooperates with the flip cover on the side of the limiting plate near the elastic clamping ring. The limiting groove is located on the side of the centrifuge tube away from the tube opening, and the flip cover of the centrifuge tube is movably engaged in the limiting groove.

[0009] Preferably, one end of the elastic clamping ring has an opening, the opening being located on the side of the elastic clamping ring away from the limiting plate, and the elastic clamping ring is snapped onto the test tube.

[0010] Preferably, the elastic clamping ring includes an inclined portion, an inner arc portion, and an outer arc portion connected in sequence; the inner arc portion and the outer arc portion are connected by the inclined portion, and the central angle corresponding to the inner arc portion is greater than the central angle of the outer arc portion.

[0011] Preferably, the central angle corresponding to the inner arc portion is greater than 180 degrees.

[0012] Preferably, the side of the elastic clamping ring that contacts the test tube is provided with an anti-slip pad.

[0013] Preferably, the limiting plate is a U-shaped plate, the limiting groove is a U-shaped groove, and the limiting plate includes a bottom plate, a first side plate, and a second side plate; the first side plate and the second side plate symmetrically fix the two ends of the bottom plate on the same side.

[0014] Preferably, the bottom plate has an anti-slip layer on the side near the limiting groove.

[0015] Preferably, the anti-slip layer is a silicone pad or a rubber pad.

[0016] Preferably, the bottom plate has friction texture on the side near the limiting groove.

[0017] Preferably, the angle between the base plate and the cross-section of the elastic clamping ring is in the range of 90-135 degrees.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) When it is necessary to fix the centrifuge tube cap, this method adjusts the size of the elastic clamping ring based on the elasticity of the elastic clamping ring so that the elastic clamping ring is fixed on the test tube. Then, the cap of the centrifuge tube is folded back so that it is located in the limiting groove and abuts against the limiting plate. This can temporarily fix the cap of the centrifuge tube, which is convenient for subsequent experiments. Afterwards, the elastic clamping ring can be removed and reused.

[0020] The limiting groove precisely engages the flip-top, effectively preventing horizontal displacement of the centrifuge tubes on the test tube holder and avoiding interference with subsequent operations caused by the centrifuge tube flip-top being higher than the test tube holder itself after opening. The elastic clamping ring can adjust the clamping force according to the diameter of the test tube, appropriately clamping the test tube and keeping the fixture stable along the test tube axis without affecting the use of the test tube or causing it to break. It can adapt to most centrifuge tubes and test tubes, greatly improving the versatility and flexibility of the device. Compared with existing structures, this fixture has high operating efficiency and safety.

[0021] (2) In this solution, an anti-slip layer such as a silicone pad or a friction texture is set on the side of the limiting plate near the limiting groove, i.e., the position where the limiting groove contacts the centrifuge tube flip cover, to increase the friction between the limiting plate and the flip cover, improve the stability of the fixing fixture for fixing the flip cover, and avoid scratching damage to the flip cover. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the centrifuge tube fixing fixture provided by this utility model;

[0023] Figure 2 A schematic diagram of the structure for installing the fixing tooling and centrifuge tubes provided by this utility model;

[0024] In the figure: 1. Elastic clamping ring, 2. Limiting plate, 11. Inclined part, 12. Inner arc part, 13. Outer arc part, 21. Limiting groove, 22. Base plate, 23. First side plate, 24. Second side plate, 3. Centrifuge tube, 4. Flip cap, 5. Test tube. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] Example 1

[0032] like Figure 1 and Figure 2 As shown, this embodiment provides a centrifuge tube flip-top fixing fixture, which is installed on the test tube. The fixture includes an elastic clamping ring 1 and a limiting plate 2.

[0033] The elastic clamping ring 1 has a ring-shaped structure and an opening at one end. The elastic clamping ring 1 is snapped onto the test tube. The limiting plate 2 is fixed at the end of the elastic clamping ring 1 away from the opening. The limiting plate 2 has a limiting groove 21 that cooperates with the flip cover on the side close to the elastic clamping ring 1. The limiting groove 21 is located at the end of the centrifuge tube away from the opening. The flip cover of the centrifuge tube is movably snapped into the limiting groove 21.

[0034] Working principle: When it is necessary to fix the centrifuge tube cap, the size of the elastic clamping ring 1 is adjusted based on the elasticity of the elastic clamping ring 1 so that the elastic clamping ring 1 is fixed on the test tube. Then, the cap of the centrifuge tube is folded back so that it is located in the limiting groove 21 and abuts against the limiting plate 2, which can temporarily fix the cap of the centrifuge tube, making it convenient for subsequent experiments. Afterwards, the elastic clamping ring 1 can be removed and reused.

[0035] The limiting groove precisely holds the flip-top, effectively preventing horizontal displacement of the centrifuge tubes on the test tube holder and preventing the centrifuge tubes from being higher than the height of the test tube holder after opening, thus avoiding interference with subsequent operations. Compared with existing structures, this fixing fixture has high operating efficiency and safety.

[0036] In a preferred embodiment, one end of the elastic clamping ring 1 has an opening located on the side of the elastic clamping ring 1 away from the limiting plate 2, and the elastic clamping ring 1 is snapped onto the test tube. By providing an opening on one side of the elastic clamping ring 1, a non-closed structure is formed, allowing the elastic clamping ring 1 to be directly snapped onto the test tube. Moreover, the size of the opening of the elastic clamping ring 1 can be flexibly adjusted to accommodate test tubes of various diameters. An elastic clamping ring 1 without an opening can be installed on the test tube by slipping it on, which can also temporarily fix the cap of a centrifuge tube, but its flexibility is relatively poor.

[0037] The elastic clamping ring can adjust the clamping force according to the diameter of the test tube, and clamp the test tube appropriately to keep the fixture stable in the axial direction of the test tube. At the same time, it will not affect the use of the test tube or cause the test tube to break. It can adapt to most centrifuge tubes and test tubes, greatly improving the versatility and flexibility of the device.

[0038] In a preferred embodiment, the elastic clamping ring 1 includes an inclined portion 11, an inner arc portion 12, and an outer arc portion 13 connected in sequence; the inner arc portion 12 and the outer arc portion 13 are connected by the inclined portion 11, and the central angle corresponding to the inner arc portion 12 is greater than the central angle of the outer arc portion 13. Specifically, the central angle corresponding to the inner arc portion 12 is greater than 180 degrees.

[0039] The central angle of the inner arc portion 12 is greater than the central angle of the outer arc portion 13, so that the opening end of the elastic clamping ring 1 forms an inverted trapezoidal shaped slot. The inclined portions 11 on both sides guide the elastic clamping ring 1 to be clamped onto the test tube, thereby improving the installation efficiency of the tooling.

[0040] Optionally, an anti-slip pad is provided on the side of the elastic clamping ring 1 that contacts the test tube. This increases the friction between the inner arc portion 12 of the elastic clamping ring 1 and the test tube, improves the stability of the fixture installed on the test tube, prevents it from sliding along the test tube, and provides auxiliary protection for the test tube.

[0041] Specifically, such as Figure 1 As shown, the limiting plate 2 is a U-shaped plate, and the limiting groove 21 is a U-shaped groove.

[0042] The limiting plate 2 includes a base plate 22, a first side plate 23, and a second side plate 24; the first side plate 23 and the second side plate 24 symmetrically fix the two ends of the same side of the base plate 22.

[0043] Optionally, the base plate 22 is provided with an anti-slip layer on the side near the limiting groove 21. The anti-slip layer is a silicone pad or a rubber pad.

[0044] Optionally, the base plate 22 has friction texture on the side near the limiting groove 21.

[0045] An anti-slip layer, such as a silicone pad, or a friction texture, is set on the side of the limiting plate near the limiting groove, i.e., where the limiting groove contacts the centrifuge tube flip cover. This increases the friction between the limiting plate and the flip cover, improves the stability of the fixing fixture in fixing the flip cover, and avoids scratching damage to the flip cover.

[0046] The angle between the base plate 22 and the cross-section of the elastic clamping ring 1 ranges from 90 to 135 degrees. In this embodiment, the angle is 105 degrees. This creates a certain angle between the limiting groove 21 of the tooling and the axial direction of the test tube, facilitating the placement of the centrifuge tube cap into the limiting groove 21 and improving operational efficiency.

[0047] In medical experiments, many operations require precise pipetting and testing steps, placing extremely high demands on the stability of the centrifuge tube 3. The aforementioned fixing fixture can firmly secure the centrifuge tube 3 to the bracket or test tube 5, avoiding experimental errors and instrument malfunctions caused by the shaking of the centrifuge tube 3's attached flip-top 4, thus ensuring the accuracy and reliability of experimental results.

[0048] The fixture is designed with the operator's convenience in mind. The combination of the limiting groove and the elastic clamping ring 1 ensures that the centrifuge tubes 3 are stably placed on the rack or test tubes and are easy to reuse. Operators only need to apply a small amount of external force to remove or place the test tubes from the rack, without worrying about them slipping or being difficult to position. Furthermore, the test tube racks can be flexibly combined and arranged according to the laboratory's needs, facilitating the classification, organization, and storage of large quantities of centrifuge tubes, improving laboratory space utilization and work efficiency. Moreover, the fixture has a simple structure, low precision requirements, and is easy to manufacture at a low cost.

[0049] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A lid fixing jig of a centrifugal tube, which is installed on a test tube, characterized in that, The tooling includes an elastic clamping ring (1) and a limiting plate (2); The elastic clamping ring (1) is a ring structure and can be detachably fixed on the test tube; the limiting plate (2) is fixed on the elastic clamping ring (1), and the limiting plate (2) has a limiting groove (21) that cooperates with the flip cover on the side of the limiting plate (2) near the elastic clamping ring (1). The limiting groove (21) is located on the side of the centrifuge tube away from the tube opening, and the flip cover of the centrifuge tube is movably engaged in the limiting groove (21).

2. The lid fixing tool for a centrifuge tube according to claim 1, wherein One end of the elastic clamping ring (1) is provided with an opening, which is located on the side of the elastic clamping ring (1) away from the limiting plate (2), and the elastic clamping ring (1) is snapped onto the test tube.

3. The lid fixing tool for a centrifuge tube according to claim 1, wherein The elastic clamping ring (1) includes an inclined portion (11), an inner arc portion (12), and an outer arc portion (13) connected in sequence; the inner arc portion (12) and the outer arc portion (13) are connected by the inclined portion (11), and the central angle corresponding to the inner arc portion (12) is greater than the central angle of the outer arc portion (13).

4. The lid fixing tool for a centrifuge tube according to claim 3, wherein The central angle corresponding to the inner arc portion (12) is greater than 180 degrees.

5. The cap securing tool for a centrifuge tube according to claim 1, wherein The elastic clamping ring (1) has an anti-slip pad on the side that contacts the test tube.

6. The lid fixing tool for a centrifuge tube according to claim 1, wherein The limiting plate (2) is a U-shaped plate, the limiting groove (21) is a U-shaped groove, and the limiting plate (2) includes a base plate (22), a first side plate (23), and a second side plate (24); the first side plate (23) and the second side plate (24) symmetrically fix the two ends of the same side of the base plate (22).

7. The lid fixing tool for a centrifuge tube according to claim 6, wherein The bottom plate (22) has an anti-slip layer on the side near the limiting groove (21).

8. The lid fixing tool for a centrifuge tube according to claim 7, wherein The anti-slip layer is a silicone pad or a rubber pad.

9. The lid fixing tool for a centrifuge tube according to claim 6, wherein The bottom plate (22) has friction texture on the side near the limiting groove (21).

10. The lid fixing tool for a centrifuge tube according to claim 6, wherein The angle between the base plate (22) and the cross section of the elastic clamping ring (1) is in the range of 90-135 degrees.

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