Sealing structure and centrifugal tube

Abstract

The utility model relates to the technical field of centrifuge tubes, in particular to a sealing structure and a centrifuge tube, which comprise a rubber gasket, the rubber gasket is fixed on the top of a centrifuge tube bottle body, a rubber inner plug ring is integrally formed on an inner ring opening of the rubber gasket, and a rubber outer sleeve ring is integrally formed on an outer ring surface of the rubber gasket. A rubber strip is integrally formed on the bottom face of the rubber outer sleeve ring, the bottom end of the rubber strip is integrally formed on the top face of a rubber sleeve, the rubber sleeve is fixedly arranged on the outer wall of the centrifugal tube bottle body in a sleeving mode, the top end of the centrifugal tube bottle body is in threaded connection with a sealing cover in a sleeving mode, and the rubber strip is clamped at the threaded connection position of the centrifugal tube bottle body and the sealing cover. The sealing structure and the centrifugal tube provided by the utility model have the beneficial effects that the rubber gasket is fixed at the top of the bottle body of the centrifugal tube, and the rubber inner plug ring is integrally formed in the rubber gasket, so that the double sealing of the bottle opening of the centrifugal tube is realized. Due to the slope design of the rubber inner plug ring, the sealing cover can be more tightly attached to the bottle opening in the screwing process, and sample leakage is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of centrifuge tubes, in particular to a sealing structure and a centrifuge tube. Background Art

[0002] Centrifuge tubes are indispensable laboratory equipment in many scientific research and experimental fields such as biochemistry, medical diagnosis, molecular biology, etc. Centrifuge tubes are mainly used for sample separation, purification and storage, and their sealing performance is directly related to the accuracy and safety of experimental results.

[0003] Traditional centrifuge tube sealing methods mostly use threads with sealing caps. However, during high-speed centrifugation or long-term storage, due to factors such as material aging, vibration and impact, problems such as poor sealing and tube mouth rupture often occur, resulting in sample leakage or contamination, affecting the reliability of experimental results.

[0004] In addition, when taking and operating traditional centrifuge tubes, they are easy to slip due to their smooth surface, which increases the risk of experimental operation. Therefore, how to design a sealing structure that can effectively seal the centrifuge tube and provide a good operating experience has become an urgent problem to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide a sealing structure and a centrifuge tube to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure, including a rubber gasket, which is fixed on the top of a centrifuge tube bottle body, the inner ring mouth of the rubber gasket is integrally formed with a rubber inner plug ring, the outer ring surface of the rubber gasket is integrally formed with a rubber outer sleeve ring, the bottom surface of the rubber outer sleeve ring is integrally formed with a rubber strip, the bottom end of the rubber strip is integrally formed on the top surface of the rubber sleeve, the rubber sleeve is sleeved and fixed on the outer wall of the centrifuge tube bottle body, the top end of the centrifuge tube bottle body is sleeved with a sealing cover threadedly connected, and the rubber strip is clamped at the threaded connection between the centrifuge tube bottle body and the sealing cover.

[0007] Preferably, the rubber gasket is an annular sheet, the rubber inner plug ring is a circular tube structure, the height of the rubber inner plug ring is greater than the thickness of the rubber gasket, the rubber inner plug ring is inserted into the bottle mouth of the centrifuge tube bottle body, and the outer diameter of the rubber inner plug ring is equal to the bottle mouth diameter of the centrifuge tube bottle body.

[0008] Preferably, the inner ring surface of the rubber inner plug ring is provided with a slope surface, and the slope surface is inclined upward from the outer ring surface to the inner ring surface at the bottom surface of the rubber inner plug ring.

[0009] Preferably, the rubber outer sleeve ring is in a circular tube structure, the height of the rubber outer sleeve ring is greater than the thickness of the rubber gasket, and the inner ring surface of the rubber outer sleeve ring is fixed to the outer wall of the bottle mouth of the centrifuge tube bottle body.

[0010] Preferably, a cavity is provided inside the rubber outer sleeve ring, and the cavity is in the form of an annular groove.

[0011] Preferably, there are a plurality of rubber strips, and the plurality of rubber strips are distributed in a circle with equal distances and sizes along the bottom surface of the rubber outer sleeve ring.

[0012] A centrifuge tube comprises a sealing structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The sealing structure and centrifuge tube proposed in the utility model realize double sealing of the centrifuge tube bottle mouth by fixing a rubber gasket on the top of the centrifuge tube bottle body and integrally forming a rubber inner plug ring inside the rubber gasket. The slope design of the rubber inner plug ring enables the sealing cover to fit the bottle mouth more closely during the tightening process, effectively preventing sample leakage. At the same time, the design of the rubber outer ring and the rubber strip further enhances the sealing and firmness between the sealing cover and the centrifuge tube bottle body. The rubber inner ring and the rubber outer ring surround both sides of the centrifuge tube bottle mouth, forming an all-round protection for the bottle mouth, effectively avoiding the problem of tube mouth rupture caused by vibration and impact, and improving the service life and safety of the centrifuge tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a top view of the structure of the utility model;

[0017] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 5 This is a schematic diagram of the structure of the rubber gasket.

[0020] In the figure: rubber gasket 1, rubber inner plug ring 2, slope 3, rubber outer ring 4, cavity 5, rubber strip

[0021] 6. Rubber sleeve 7. Centrifuge tube bottle body 8. Sealing cover 9. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] For example, see Figure 1-Figure 5 The utility model provides a technical solution: a sealing structure, including a rubber gasket 1, which is fixed on the top of a centrifuge tube bottle body 8, and the inner ring mouth of the rubber gasket 1 is integrally formed with a rubber inner plug ring 2, the rubber gasket 1 is a circular ring sheet, the rubber inner plug ring 2 is a circular tube structure, the height of the rubber inner plug ring 2 is greater than the thickness of the rubber gasket 1, the rubber inner plug ring 2 is inserted into the bottle mouth of the centrifuge tube bottle body 8, the outer diameter of the rubber inner plug ring 2 is equal to the bottle mouth diameter of the centrifuge tube bottle body 8, and the inner ring surface of the rubber inner plug ring 2 is provided with a slope 3, and the slope 3 is inclined upward from the outer ring surface to the inner ring surface on the bottom surface of the rubber inner plug ring 2.

[0024] The reason why the rubber gasket 1 is fixed on the top of the centrifuge tube bottle body 8 is that when the sealing cover 9 is screwed and locked on the top of the centrifuge tube bottle body 8, the rubber gasket 1 is clamped between the centrifuge tube bottle body 8 and the sealing cover 9 to play a sealing role, and the rubber gasket 1 also plays the role of an elastic gasket when the sealing cover 9 and the centrifuge tube bottle body 8 are screwed; the rubber inner plug ring 2 is inserted into the bottle mouth of the centrifuge tube bottle body 8 to protect the pipe mouth of the centrifuge tube bottle body 8 and avoid leakage caused by the pipe mouth of the centrifuge tube bottle body 8.

[0025] The outer ring surface of the rubber gasket 1 is integrally formed with a rubber outer ring 4, which is a round tube structure. The height of the rubber outer ring 4 is greater than the thickness of the rubber gasket 1. The inner ring surface of the rubber outer ring 4 is fixed to the outer wall of the bottle mouth of the centrifuge tube bottle body 8. The rubber outer ring 4 is provided with a cavity 5 in the form of an annular groove. The rubber outer ring 4 cooperates with the rubber inner plug ring 2 to enclose both sides of the mouth of the centrifuge tube bottle body 8, thereby achieving effective protection of the mouth of the centrifuge tube bottle body 8. The rubber outer ring 4 is clamped between the side walls of the centrifuge tube bottle body 8 and the sealing cover 9, thereby improving the sealing and firmness of the centrifuge tube bottle body 8 and the sealing cover 9 after being screwed.

[0026] The bottom surface of the rubber outer sleeve ring 4 is integrally formed with a rubber strip 6, the bottom end of the rubber strip 6 is integrally formed on the top surface of the rubber sleeve 7, the rubber sleeve 7 is sleeved and fixed on the outer wall of the centrifuge tube bottle 8, a plurality of rubber strips 6 are provided, and the plurality of rubber strips 6 are equidistantly and equally sized and distributed in a circle along the bottom surface of the rubber outer sleeve ring 4, the top end of the centrifuge tube bottle 8 is sleeved with a sealing cover 9 which is screwed, and the rubber strip 6 is clamped at the screw connection between the centrifuge tube bottle 8 and the sealing cover 9. When the sealing cover 9 is sleeved and screwed on the centrifuge tube bottle 8, the rubber strip 6 is squeezed at the threaded part of the centrifuge tube bottle 8 and the sealing cover 9, so that the screw connection between the centrifuge tube bottle 8 and the sealing cover 9 is engaged and tightened, and the rubber sleeve 7 is sleeved on the outer wall of the centrifuge tube bottle 8, so that the user can hold the centrifuge tube bottle 8 through the rubber sleeve 7, which plays an anti-slip role.

[0027] Embodiment 2, based on embodiment 1, proposes a centrifuge tube including a sealing structure.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing structure, comprising a rubber gasket (1), the rubber gasket (1) being fixed on the top of a centrifuge tube bottle (8), characterized in that: The inner ring opening of the rubber gasket (1) is integrally formed with a rubber inner plug ring (2), the outer ring surface of the rubber gasket (1) is integrally formed with a rubber outer ring (4), the bottom surface of the rubber outer ring (4) is integrally formed with a rubber strip (6), the bottom end of the rubber strip (6) is integrally formed on the top surface of a rubber sleeve (7), the rubber sleeve (7) is sleeved and fixed on the outer wall of a centrifuge tube bottle body (8), the top end of the centrifuge tube bottle body (8) is sleeved and screwed with a sealing cover (9), and the rubber strip (6) is clamped at the screw connection between the centrifuge tube bottle body (8) and the sealing cover (9).

2. A sealing structure according to claim 1, characterized in that: The rubber gasket (1) is in the form of a circular ring, the rubber inner plug ring (2) is in the form of a circular tube structure, the height of the rubber inner plug ring (2) is greater than the thickness of the rubber gasket (1), the rubber inner plug ring (2) is inserted into the mouth of the centrifuge tube bottle body (8), and the outer diameter of the rubber inner plug ring (2) is equal to the diameter of the mouth of the centrifuge tube bottle body (8).

3. A sealing structure according to claim 1, characterized in that: The inner ring surface of the rubber inner plug ring (2) is provided with a slope surface (3), and the slope surface (3) is inclined upward from the outer ring surface to the inner ring surface at the bottom surface of the rubber inner plug ring (2).

4. A sealing structure according to claim 1, characterized in that: The rubber outer ring (4) is in a circular tube structure, the height of the rubber outer ring (4) is greater than the thickness of the rubber gasket (1), and the inner ring surface of the rubber outer ring (4) is fixed to the outer wall of the bottle mouth of the centrifuge tube bottle body (8).

5. A sealing structure according to claim 1, characterized in that: A cavity (5) is provided inside the rubber outer sleeve ring (4), and the cavity (5) is in the form of an annular groove.

6. A sealing structure according to claim 1, characterized in that: A plurality of rubber strips (6) are provided, and the plurality of rubber strips (6) are circumferentially distributed at equal distances and in equal sizes along the bottom surface of the rubber outer sleeve ring (4).

7. A centrifuge tube, characterized in that: The sealing structure comprises the sealing structure described in any one of claims 1 to 6.

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