Centrifugal tube convenient for sampling

Abstract

The utility model discloses a centrifugal tube convenient for sampling. The centrifugal tube comprises a tube cap, a hard tube body and a hose base connected with the hard tube body, the periphery of the upper part of the hard pipe body is connected with a plurality of guide seats which are rotationally distributed; a first guide inclined surface is arranged on the side edge of the guide seat; a clamping plane is arranged in the middle of the guide seat; a clamping groove is formed in the clamping plane of the guide seat; the inner side of the lower portion of the pipe cap is connected with a clamping base corresponding to the guide base. A second guide inclined surface matched with the first guide inclined surface is arranged on the clamping seat, and a clamping edge corresponding to the clamping groove is connected to the upper part of the clamping seat; the clamping seat is screwed on the guide seat corresponding to the clamping seat, and the clamping seat is clamped on the clamping groove through the clamping edge so as to be clamped with the clamping seat; and a sealing ring is connected between the pipe cap and the hard pipe body. The pipe cap is convenient and fast to mount and dismount, and sampling is convenient.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge equipment technology, specifically to a centrifuge tube that facilitates sampling. Background Technology

[0002] Centrifuge tubes are tubular containers used in laboratories for centrifugation and sample storage. They are usually equipped with a sealing cap or pressure cap (i.e., the tube cap of this utility model) to ensure that the sample is stable and leak-free during centrifugation. Existing centrifuge tubes are classified into flexible centrifuge tubes and rigid centrifuge tubes according to their materials. Flexible centrifuge tubes are mainly made of polyethylene (PE) and some polypropylene (PP), while rigid centrifuge tubes are mainly made of polycarbonate (PC), glass, steel, etc.

[0003] The caps of existing centrifuge tubes are generally connected to the tube body by threads. Therefore, when fixing them, it is necessary to rotate them several times to install the caps onto the tube body. The same applies when disassembling them, which is relatively troublesome. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem of providing a centrifuge tube with a more convenient and quicker cap installation and removal.

[0005] To solve the above-mentioned technical problems, the present invention provides a convenient sampling centrifuge tube solution as follows:

[0006] The device includes a cap, a rigid tube body, and a flexible tube base connected to the rigid tube body. Multiple rotating guide seats are connected around the upper periphery of the rigid tube body. Each guide seat has a first guide slope on its side and a snap-fit ​​surface in its center. A snap-fit ​​groove is formed on the snap-fit ​​surface of the guide seat. A snap-fit ​​seat corresponding to the guide seat is connected to the inner side below the cap. A second guide slope matching the first guide slope is formed on the snap-fit ​​seat, and a snap ridge corresponding to the snap-fit ​​groove is connected above the snap-fit ​​seat. The snap-fit ​​seat is screwed onto the corresponding guide seat, and the snap-fit ​​seat is snapped into the snap-fit ​​groove via the snap ridge. A sealing ring connects the cap and the rigid tube body.

[0007] An inlay seat is connected to the outer edge of the inner wall of the cap; an inlay ring groove is provided below the inlay seat; and the sealing ring is inlaid in the inlay ring groove.

[0008] The rigid tube body is connected to two evenly distributed guide seats on its upper periphery, and the corresponding tube cap is connected to two evenly distributed snap-fit ​​seats on its lower inner side.

[0009] A liquid outlet pipe is connected above the cap; a sealing plug is inserted into the liquid outlet pipe.

[0010] The inner wall of the cap is a frustum-shaped surface that slopes upwards from the outer periphery toward the outlet pipe.

[0011] The technical effects achievable by this utility model are as follows: The cap of the centrifuge tube for convenient sampling is screwed onto the guide seat on the rigid tube by its own snap-fit ​​seat, and fixed by snap-fit ​​ridges onto the snap-fit ​​groove, making installation and disassembly convenient and quick; in addition, the cap and the rigid tube body are sealed by a sealing ring to ensure its airtightness; this utility model has an outlet tube connected above the cap, and when sampling, the sample can be made to flow out from the outlet tube by removing the sealing plug on the outlet tube and squeezing the tube base, making sampling more convenient. Attached Figure Description

[0012] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0013] Figure 1 This is a schematic diagram of the structure of a centrifuge tube for convenient sampling according to this utility model;

[0014] Figure 2 This is a cross-sectional view of a centrifuge tube for convenient sampling according to this utility model. Figure 1 ;

[0015] Figure 3 yes Figure 2 Enlarged view of part A;

[0016] Figure 4 This is a cross-sectional view of a centrifuge tube for convenient sampling according to this utility model. Figure 2 ;

[0017] Figure 5 yes Figure 4 Enlarged view of part B;

[0018] Figure 6 This is a structural diagram of the rigid tube body and the flexible tube base;

[0019] Figure 7 yes Figure 6 Enlarged view of part C;

[0020] Figure 8 This is a schematic diagram of the cap structure;

[0021] Figure 9 yes Figure 8 Enlarged view of part D. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] See Figures 1 to 9 .

[0024] A centrifuge tube for convenient sampling includes a cap 1, a rigid tube body 2, and a flexible tube base 3 connected to the rigid tube body 2. Multiple rotating guide seats 4 are connected to the upper periphery of the rigid tube body 2. Preferably, two guide seats 4 are evenly distributed and rotate around the axis of the rigid tube body 2. A first guide slope 5 is provided on the side of each guide seat 4, and a snap-fit ​​plane 6 is provided in the middle of each guide seat 4. A snap-fit ​​groove 7 is formed on the snap-fit ​​plane 6 of each guide seat 4. The inner side below the cap 1... A snap-fit ​​seat 8 corresponding to the guide seat 4 is connected. The snap-fit ​​seat 8 has a second guide slope 9 that matches the first guide slope 5. The snap-fit ​​seat 8 is connected above the snap-fit ​​seat 8 and has a snap-fit ​​ridge 10 corresponding to the snap-fit ​​groove 7. Specifically, two evenly distributed snap-fit ​​seats 8 are connected to the inner side of the lower part of the pipe cap 1. The snap-fit ​​seat 8 is screwed onto the guide seat 4 corresponding to itself, and the snap-fit ​​seat 8 is snapped onto the snap-fit ​​groove 7 by the snap-fit ​​ridge 10. A sealing ring 11 is connected between the pipe cap 1 and the rigid pipe body 2.

[0025] In the connection between the cap 1 and the rigid pipe body 2, the cap 1 is connected by screwing its snap-fit ​​seat 8 onto the guide seat 4 on the rigid pipe body 2. Specifically, the snap-fit ​​seat 8 is screwed onto the guide seat 4 through the cooperation of the second guide inclined surface 9 and the first guide inclined surface 5, until the snap-fit ​​edge 10 is engaged with the snap-fit ​​groove 7, thus completing the fixation. Compared with the existing threaded connection, this utility model has fewer rotations, so it is easier to install and disassemble. In addition, a sealing ring 11 is connected between the cap 1 and the rigid pipe body 2 to ensure its sealing performance, and its sealing effect is relatively good.

[0026] Specifically, in the connection of the sealing ring 11, an inlay seat 12 is connected to the outer edge of the inner wall of the cap 1, and an inlay ring groove 13 is opened below the inlay seat 12, and the sealing ring 11 is inlaid in the inlay ring groove 13.

[0027] The present invention has a liquid outlet tube 21 connected to the top of the cap 1, and a sealing plug 22 is inserted into the liquid outlet tube 21; preferably, the inner wall of the cap 1 is a frustum 23 that slopes upward from the outer periphery toward the liquid outlet tube 21; when sampling, the present invention can not only be sampled by unscrewing the cap 1, but also by removing the sealing plug 22 and inverting the present invention (so that the upper end of the liquid outlet tube 21 is facing down), and squeezing the tubing base to make the sample flow out of the liquid outlet tube, which makes sampling more convenient.

Claims

1. A centrifuge tube for convenient sampling, characterized in that: The device includes a cap (1), a rigid tube body (2), and a flexible tube base (3) connected to the rigid tube body (2); multiple rotating guide seats (4) are connected around the upper periphery of the rigid tube body (2); a first guide slope (5) is provided on the side of the guide seat (4), and a snap-fit ​​plane (6) is provided in the middle of the guide seat (4); a snap-fit ​​groove (7) is provided on the snap-fit ​​plane (6) of the guide seat (4); a corresponding snap-fit ​​groove is connected to the inner side of the lower part of the cap (1). The snap-fit ​​seat (8) has a second guide slope (9) that matches the first guide slope (5) and a snap ridge (10) corresponding to the snap groove (7) connected above the snap-fit ​​seat (8); the snap-fit ​​seat (8) is screwed onto the guide seat (4) corresponding to itself, and the snap-fit ​​seat (8) is snapped onto the snap groove (7) by the snap ridge (10) and snapped into the snap-fit ​​seat (8); a sealing ring (11) is connected between the pipe cap (1) and the rigid pipe body (2).

2. The centrifuge tube for convenient sampling according to claim 1, characterized in that: The inner wall of the cap (1) is connected to an inlay seat (12); an inlay ring groove (13) is provided below the inlay seat (12); and the sealing ring (11) is inlaid in the inlay ring groove (13).

3. A centrifuge tube for convenient sampling according to claim 1, characterized in that: The rigid tube body (2) has two evenly distributed guide seats (4) connected to the upper periphery, and two evenly distributed snap-fit ​​seats (8) connected to the lower inner side of the corresponding tube cap (1).

4. A centrifuge tube for convenient sampling according to claim 1, characterized in that: The cap (1) is connected to a liquid outlet pipe (21); a sealing plug (22) is plugged into the liquid outlet pipe (21).

5. A centrifuge tube for convenient sampling according to claim 4, characterized in that: The inner wall of the cap (1) is a frustum (23) that slopes upward from the outer periphery toward the outlet pipe (21).

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