Centrifugal tube with filtering function

Abstract

The centrifugal tube with the filtering function comprises an outer tube and an inner tube, the inner tube is arranged in the outer tube, and a plurality of filtering holes are evenly formed in the lower portion of the inner tube at intervals. And a lifting piece is arranged at the open end of the inner pipe. The centrifugal tube has the beneficial effects that the centrifugal tube is simple in structure and reasonable in design, adopts a split structure, can realize rapid centrifugal separation operation, does not need secondary separation operation, and is high in separation efficiency and very convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge tube technology, specifically to a centrifuge tube with a filtration function. Background Technology

[0002] Centrifugation is a highly effective method for solid-liquid separation during sample pretreatment, especially for separating suspensions containing very small solid particles. Centrifuge tubes are a crucial component in centrifugation. However, traditional centrifugation separates the solid and liquid phases into two layers after centrifugation, requiring further separation. This process often causes the clear solution to become turbid again, and some solid substances with low density remain floating on the liquid surface after centrifugation. Current centrifuge tubes cannot meet these requirements, necessitating the research and development of a new type of centrifuge tube. Utility Model Content

[0003] This invention provides a centrifuge tube with a filtration function, aiming to solve the problems in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A centrifuge tube with a filtration function includes an outer tube and an inner tube, wherein the inner tube is placed inside the outer tube and has a plurality of filter holes evenly spaced at its lower part; the open end of the inner tube is provided with a lifting element.

[0006] The beneficial effects of this invention are as follows: During use, the centrifuge tube has two different usage methods: First, the adsorbent is placed in the inner tube, the sample solution and the adsorbent are thoroughly mixed, and after adsorption is completed, the inner tube can be directly removed. The target analyte is adsorbed in the adsorbent in the inner tube, and the separated waste liquid can be discarded. Then, the adsorbent can be rinsed in the inner tube, the inner tube can be removed and the rinsing liquid discarded, and then elution liquid can be added to the inner tube and removed to obtain the elution liquid containing the target molecule; Second, the solid sample is placed in the inner tube, the extractant is added, and after extraction is completed, the inner tube is directly removed, the outer tube is retained, and the extract is obtained.

[0007] This utility model has a simple structure and reasonable design. The centrifuge tube adopts a split structure, which can realize rapid centrifugation separation without the need for secondary separation operations. It has high separation efficiency and is very convenient to use.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the lifting component includes a lifting rod, which is installed at the open end of the inner tube.

[0010] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The use of the lifting component makes it easy to place the inner tube inside the outer tube or to lift the inner tube out of the outer tube, making the operation simpler and saving time and effort.

[0011] Furthermore, the lifting rod is distributed along the diameter of the inner tube, and its two ends are fixedly connected to the edge of the open end of the inner tube.

[0012] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The lifting rod makes it easy to place the inner tube into the outer tube or to lift the inner tube out of the outer tube, making the operation simpler and saving time and effort.

[0013] Furthermore, the lifting rod includes two crossbars, one end of each crossbar being rotatably connected to the edge of the open end of the inner tube, and the other end being rotatable to be fastened together.

[0014] The advantages of adopting the above-mentioned further solution are that the structure is simple and the lifting rod adopts a split structure. When placing the sample into the inner tube, the other ends of the two crossbars need to be separated in advance to avoid the crossbars affecting the sample addition. After the sample is processed, the other ends of the two crossbars need to be fastened together so that the operator can use the two crossbars to lift the inner tube, which makes the operation simple.

[0015] Furthermore, the two crossbars are each cylindrical in shape.

[0016] The advantages of adopting the above-mentioned further solution are that the structure is simple, the shape of the two crossbars is reasonably designed, it is easy to operate, and it ensures the comfort of the operator's hands.

[0017] Furthermore, one of the crossbars has a buckle attached to the other end, and the other crossbar has a hook attached to the other end, the hook being able to engage or disengage from the buckle.

[0018] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The other ends of the two crossbars are detachably connected by buckles and hooks, making the operation simple and saving time and effort.

[0019] Furthermore, the inner tube has through mounting ports on opposite edges of its open end, and one end of each of the two crossbars extends into the two mounting ports and is rotatably connected.

[0020] The advantages of adopting the above-mentioned further solution are that the structure is simple, the design is reasonable, and the two mounting ports facilitate the assembly of the two crossbars, making assembly convenient.

[0021] Furthermore, a sealing ring is fixedly fitted on the outer side of the open end of the inner tube.

[0022] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The use of sealing rings can increase the sealing between the open ends of the inner tube and the outer tube, thus avoiding leakage.

[0023] Furthermore, the sealing ring is a rubber ring.

[0024] The advantages of adopting the above-mentioned further solutions are that the structure is simple, the use of rubber rings for sealing is more reasonable, the sealing performance is good, and the cost is low.

[0025] Furthermore, the closed ends of the outer tube and the inner tube are respectively arc-shaped structures.

[0026] The advantages of adopting the above-mentioned further solution are that the structure is simple, the shape design of the closed ends of the outer tube and the inner tube is reasonable, and it is compatible with the centrifuge tube groove on the centrifuge. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the outer tube in this utility model;

[0029] Figure 3 This is a plan view of the inner tube in this utility model;

[0030] Figure 4 This is a three-dimensional structural diagram of the inner tube in this utility model;

[0031] Figure 5 This is a schematic diagram of the overall structure of the inner tube in the first embodiment of this utility model;

[0032] Figure 6 This is a partial structural schematic diagram of the inner tube in the first embodiment of this utility model;

[0033] Figure 7 This is a schematic diagram of the two crossbar sections unfolded in the first embodiment of the inner tube of this utility model;

[0034] Figure 8 This is a schematic diagram of the inner tube of this utility model when both crossbars are fully extended in the first embodiment.

[0035] Figure 9 This is a schematic diagram of the overall structure of the second embodiment of the inner tube in this utility model.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Outer tube; 2. Inner tube; 3. Lifting rod; 3-1. Crossbar; 4. Buckle; 5. Hook; 6. Mounting port; 7. Sealing ring; 8. Filter hole. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] Example 1

[0043] like Figures 1 to 9 As shown, this embodiment provides a centrifuge tube with a filtration function, including an outer tube 1 and an inner tube 2. The inner tube 2 is placed inside the outer tube 1, and a plurality of filter holes 8 are evenly spaced at its lower part; the open end of the inner tube 2 is provided with a lifting member.

[0044] During use, this centrifuge tube can be used in two different ways: First, the adsorbent is placed in the inner tube 2, the sample solution and adsorbent are thoroughly mixed, and after adsorption is complete, the inner tube 2 can be directly removed. The target analyte is adsorbed in the adsorbent in the inner tube 2, and the separated waste liquid can be discarded. Then, the adsorbent can be rinsed in the inner tube 2, the inner tube 2 can be removed and the rinsing liquid discarded, and then elution liquid can be added to the inner tube 2. The elution liquid containing the target molecule can be obtained. Second, the solid sample is placed in the inner tube 2, the extractant is added, and after extraction is complete, the inner tube 2 can be directly removed, while the outer tube 1 is retained to obtain the extract.

[0045] Preferably, in this embodiment, the outer tube 1 and the inner tube 2 are respectively cylindrical structures.

[0046] In addition, the upper end of the outer tube 1 is threaded with a cap.

[0047] This embodiment has a simple structure and reasonable design. The centrifuge tube adopts a split structure, which can realize rapid centrifugation separation without the need for secondary separation operations. It has high separation efficiency and is very convenient to use.

[0048] Example 2

[0049] Based on Embodiment 1, in this embodiment, the lifting component includes a lifting rod 3, which is installed at the open end of the inner tube 2.

[0050] The scheme has a simple structure and reasonable design. The lifting component 3 makes it easy to place the inner tube 2 inside the outer tube 1 or to pull the inner tube 2 out of the outer tube 1, making the operation simpler and saving time and effort.

[0051] Example 3

[0052] Based on Embodiment 2, in this embodiment, the lifting rod 3 is distributed along the diameter of the inner tube 2, and its two ends are fixedly connected to the edge of the open end of the inner tube 2.

[0053] The scheme has a simple structure and reasonable design. The lifting rod 3 makes it easy to place the inner tube 2 into the outer tube 1 or to lift the inner tube 2 out of the outer tube 1, making the operation simpler and saving time and effort.

[0054] Example 4

[0055] Based on Embodiment 2, in this embodiment, the lifting rod 3 includes two crossbars 3-1, one end of each crossbar 3-1 is rotatably connected to the edge of the open end of the inner tube 2, and the other end can be rotated to be fastened together.

[0056] The scheme has a simple structure. The lifting rod 3 adopts a split structure. When placing the sample into the inner tube 2, the other ends of the two crossbars 3-1 need to be separated in advance to avoid the crossbars 3-1 affecting the sample addition. After the sample is processed, the other ends of the two crossbars 3-1 need to be fastened together so that the operator can use the two crossbars 3-1 to lift the inner tube 2. The operation is simple.

[0057] The above-mentioned embodiments 3 and 4 are parallel schemes. In embodiment 3, the lifting rod 3 and the open end of the inner tube 2 are fixed. This design of the lifting rod 3 will affect the sample addition to a certain extent. However, in embodiment 4, the two crossbars 3-1 of the lifting rod 3 are separated when adding samples, which will not affect the sample addition.

[0058] Example 5

[0059] Based on Example 4, in this example, the two crossbars 3-1 are respectively cylindrical in shape.

[0060] The design is simple, with the two crossbars 3-1 having a reasonable shape that facilitates operation and ensures the comfort of the operator's hands.

[0061] Example 6

[0062] Based on any one of Embodiments 4 to 5, in this embodiment, one of the crossbars 3-1 is connected to a buckle 4 at the other end, and the other crossbar 3-1 is connected to a hook 5 at the other end, the hook 5 being able to engage or disengage from the buckle 4.

[0063] The scheme has a simple structure and reasonable design. The other ends of the two crossbars 3-1 are detachably connected by buckles 4 and hooks 5, which makes the operation simple, time-saving and labor-saving.

[0064] Preferably, in this embodiment, the buckle 4 and the hook 5 are rotatably connected to the other end of the two crossbars 3-1.

[0065] Example 7

[0066] Based on any one of Embodiments 4 to 6, in this embodiment, the edge of the open end of the inner tube 2 is provided with a through mounting port 6, and one end of each of the two crossbars 3-1 extends into the two mounting ports 6 and is rotatably connected.

[0067] The scheme has a simple structure and reasonable design. It utilizes two mounting ports 6 to facilitate the assembly of the two crossbars 3-1, making assembly convenient.

[0068] Example 8

[0069] Based on the above embodiments, in this embodiment, a sealing ring 7 is fixedly sleeved on the outer side of the open end of the inner tube 2.

[0070] The solution has a simple structure and a reasonable design. The sealing ring 7 can increase the sealing between the open ends of the inner tube 2 and the outer tube 1, thus preventing leakage.

[0071] Example 9

[0072] Based on Example 8, in this example, the sealing ring 7 is a rubber ring.

[0073] The design is simple in structure, and the use of a rubber ring for sealing ring 7 is reasonable, providing good sealing performance and low cost.

[0074] Example 10

[0075] Based on the above embodiments, in this embodiment, the closed ends of the outer tube 1 and the inner tube 2 are respectively arc-shaped structures.

[0076] The design is simple, with reasonable shapes for the closed ends of the outer tube 1 and inner tube 2, which are compatible with the centrifuge tubing.

[0077] The working principle of this utility model is as follows:

[0078] During use, this centrifuge tube can be used in two different ways: First, the adsorbent is placed in the inner tube 2, the sample solution and adsorbent are thoroughly mixed, and after adsorption is complete, the inner tube 2 can be directly removed. The target analyte is adsorbed in the adsorbent in the inner tube 2, and the separated waste liquid can be discarded. Then, the adsorbent can be rinsed in the inner tube 2, the inner tube 2 can be removed and the rinsing liquid discarded, and then elution liquid can be added to the inner tube 2. The elution liquid containing the target molecule can be obtained. Second, the solid sample is placed in the inner tube 2, the extractant is added, and after extraction is complete, the inner tube 2 can be directly removed, while the outer tube 1 is retained to obtain the extract.

[0079] The centrifuge tube provided by this utility model has the following advantages: the centrifuge tube adopts a split structure, which can realize rapid centrifugation separation without the need for secondary separation operation, has high separation efficiency, simple structure, reasonable design, and is very convenient to use.

[0080] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0081] 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.

[0082] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifuge tube with a filtering function, characterized in that: It includes an outer tube (1) and an inner tube (2), the inner tube (2) is placed inside the outer tube (1), and a plurality of filter holes (8) are evenly spaced at the bottom of the inner tube (2); the open end of the inner tube (2) is provided with a lifting member; the lifting member includes a lifting rod (3), the lifting rod (3) is installed at the open end of the inner tube (2).

2. The centrifuge tube with filtration function according to claim 1, characterized in that: The lifting rod (3) is distributed along the diameter of the inner tube (2), and its two ends are fixedly connected to the edge of the open end of the inner tube (2).

3. The centrifuge tube with filtration function according to claim 1, characterized in that: The lifting rod (3) includes two crossbars (3-1), one end of each crossbar (3-1) is rotatably connected to the edge of the open end of the inner tube (2), and the other end can be rotated to be fastened together.

4. The centrifuge tube with filtration function according to claim 3, characterized in that: The two crossbars (3-1) are respectively cylindrical in shape.

5. The centrifuge tube with filtration function according to claim 3, characterized in that: One of the crossbars (3-1) has a buckle (4) attached to one end, and the other crossbar (3-1) has a hook (5) attached to the other end, which can engage or disengage from the buckle (4).

6. The centrifuge tube with filtration function according to claim 3, characterized in that: The inner tube (2) has through mounting ports (6) at opposite edges of its open end. One end of each of the two crossbars (3-1) extends into the two mounting ports (6) and is rotatably connected.

7. The centrifuge tube with filtration function according to any one of claims 1-6, characterized in that: A sealing ring (7) is fixedly fitted on the outer side of the open end of the inner tube (2).

8. The centrifuge tube with filtration function according to claim 7, characterized in that: The sealing ring (7) is a rubber ring.

9. The centrifuge tube with filtration function according to any one of claims 1-6, characterized in that: The closed ends of the outer tube (1) and the inner tube (2) are respectively arc-shaped structures.

Images