Outer protective tube sleeve and centrifugal tube

Abstract

The utility model relates to the technical field of centrifuge tubes, in particular to an outer protective tube sleeve and a centrifuge tube, which comprise a tube sleeve body, a rubber sleeve is fixed at the top of the tube sleeve body, the rubber sleeve and the tube sleeve body are both sleeved on the tube body of the centrifuge tube, and an elastic protective sheet is fixed at the bottom end of the tube sleeve body; the outer protection pipe sleeve and the centrifugal pipe have the advantages that the rubber sleeve is additionally arranged at the top of the pipe sleeve body, a multi-sealing structure is formed between the rubber sleeve, the sealing cover and the centrifugal pipe body, and the leakage problem caused by centrifugal force generated by high-speed rotation in the centrifugal process is effectively solved. Due to the convex design of the rubber sleeve, the sealing cover can tightly extrude the rubber sleeve in the screwing process, and the sealing effect is further enhanced.

Description

Technical Field

[0001] The utility model relates to the field of centrifuge tubes, and specifically relates to an outer protective tube sleeve and a centrifuge tube. Background Art

[0002] In the fields of biological experiments, chemical analysis, and medical diagnosis, centrifuge tubes are indispensable laboratory consumables. They are widely used in the processes of sample separation, purification, and storage. However, traditional centrifuge tubes often face some challenges during use. For example, during centrifugation, the centrifugal force generated by high-speed rotation may cause the tube body to break or leak, and problems such as sample contamination or leakage may occur due to the loose connection between the tube body and the sealing cap. In addition, during transportation or storage, centrifuge tubes are also easily damaged by external impacts or squeezes, further affecting the accuracy and reliability of experimental results.

[0003] To solve the above problems, existing centrifuge tube protection methods mostly adopt adding external protective structures, but these structures often have disadvantages such as inconvenient installation, poor sealing performance, or affecting the normal use of centrifuge tubes. Therefore, it is particularly important to develop an outer protective tube sleeve that can effectively protect centrifuge tubes, ensure sealing performance, and is convenient for installation and use. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an outer protective tube sleeve and a centrifuge tube to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an outer protective tube sleeve, including a tube sleeve body. A rubber sleeve is fixed at the top of the tube sleeve body. Both the rubber sleeve and the tube sleeve body are sleeved on the centrifuge tube body. An elastic protective piece is fixed at the bottom end of the tube sleeve body.

[0006] Preferably, the tube sleeve body has a circular tube structure with a cross-section in the shape of "L", and the top plate of the tube sleeve body overlaps at the pipe mouth step of the centrifuge tube body.

[0007] Preferably, the rubber sleeve has a circular tube shape in the shape of "convex". The inner ring diameter of the rubber sleeve is equal to the outer diameter of the tube head of the tube sleeve body. The top end of the centrifuge tube body is sleeved and screwed with a sealing cap, and the sealing cap is clamped on the bottom plate of the rubber sleeve.

[0008] Preferably, a sealing ring is fixed in the inner ring mouth at the top of the tube sleeve body, and the sealing ring is clamped between the tube sleeve body and the centrifuge tube body to generate elastic deformation.

[0009] Preferably, a support ring is fixed in the inner ring mouth at the bottom of the tube sleeve body. An anti-slip ring is fixed on the inner ring surface of the support ring, and the anti-slip ring is clamped between the support ring and the centrifuge tube body to generate elastic deformation.

[0010] Preferably, the elastic protection piece is in the shape of an arc-shaped piece, and there are multiple elastic protection pieces, which are circumferentially distributed with the inner ring opening at the bottom of the tube sleeve body as the center.

[0011] Preferably, a rubber protrusion is fixed at the bottom end of the elastic protection piece, and the rubber protrusion is clamped between the elastic protection piece and the tube sleeve body.

[0012] Preferably, annular grooves for fingers are formed on the outer ring surface of the tube sleeve body, and the annular grooves for fingers are in the shape of annular grooves.

[0013] A centrifuge tube includes an outer protective tube sleeve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] For the outer protective tube sleeve and the centrifuge tube proposed by the present utility model, a rubber sleeve is added to the top of the tube sleeve body, forming a multiple sealing structure between the rubber sleeve, the sealing cover and the centrifuge tube body, effectively preventing leakage problems caused by centrifugal force generated during high-speed rotation during the centrifugation process. The "convex" shape design of the rubber sleeve enables the sealing cover to tightly squeeze the rubber sleeve during the screwing process, further enhancing the sealing effect. A support ring and an anti-slip ring are installed at the bottom of the tube sleeve body, and the elastic deformation of the anti-slip ring increases the friction force between the tube sleeve and the centrifuge tube, effectively preventing the tube sleeve from shaking or sliding off outside the centrifuge tube and ensuring the stability of the tube sleeve during the centrifugation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a top view of the structure of the present utility model;

[0018] Figure 3 is Figure 2 a sectional view of the structure at A-A in

[0019] Figure 4 is Figure 3 a schematic enlarged view of the structure at A in

[0020] Figure 5 is Figure 3 a schematic enlarged view of the structure at B in

[0021] Figure 6 is a schematic structural diagram of the tube sleeve body of the present utility model.

[0022] In the figure: tube sleeve body 1, rubber sleeve 2, centrifuge tube body 3, sealing cover 4, sealing ring 5, support ring 6, anti-slip ring 7, elastic protection piece 8, rubber protrusion 9, finger groove 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to clearly and completely describe the purpose and technical solutions of the present utility model and make its advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of them, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] Embodiment 1. Please refer to Figures 1-6 , the present utility model provides a technical solution: an outer protective tube sleeve, including a tube sleeve body 1. A rubber sleeve 2 is fixed to the top of the tube sleeve body 1. Both the rubber sleeve 2 and the tube sleeve body 1 are sleeved on the centrifuge tube body 3. The tube sleeve body 1 has a circular tube structure with a cross-section in the shape of "L". The top plate of the tube sleeve body 1 overlaps at the nozzle step of the centrifuge tube body 3. The rubber sleeve 2 has a circular tube in the shape of "convex". The inner ring diameter of the rubber sleeve 2 is equal to the outer diameter of the tube head of the tube sleeve body 1. The top end of the centrifuge tube body 3 is sleeved and screwed with a sealing cover 4. The sealing cover 4 is clamped on the bottom plate of the rubber sleeve 2. An elastic guard plate 8 is fixed to the bottom end of the tube sleeve body 1. A sealing ring 5 is fixed in the inner ring opening at the top of the tube sleeve body 1. The sealing ring 5 is clamped between the tube sleeve body 1 and the centrifuge tube body 3 to generate elastic deformation.

[0025] The reason for adding the rubber sleeve 2 to the top of the tube sleeve body 1 is that while the tube sleeve body 1 is sleeved on the outside of the centrifuge tube body 3 for protection, a sealing structure is extended at the top of the tube sleeve body 1. That is, after the sealing cover 4 is screwed to the top of the tube sleeve body 1, the sealing cover 4 presses the bottom plate of the rubber sleeve 2, and the top of the rubber sleeve 2 presses between the sealing cover 4 and the centrifuge tube body 3, avoiding leakage problems after the centrifuge tube body 3 and the sealing cover 4 are connected.

[0026] A support ring 6 is fixed in the inner ring opening at the bottom of the tube sleeve body 1. An anti-slip ring 7 is fixed to the inner ring surface of the support ring 6. The anti-slip ring 7 is clamped between the support ring 6 and the centrifuge tube body 3 to generate elastic deformation. The reason for installing the support ring 6 and the anti-slip ring 7 in the inner ring opening at the bottom of the tube sleeve body 1 is that after the tube sleeve body 1 is sleeved on the outside of the centrifuge tube body 3, it is to avoid the tube sleeve body 1 shaking on the outside of the centrifuge tube body 3, and the anti-slip ring 7 increases the friction between the tube sleeve body 1 and the centrifuge tube body 3. When there is no external force pulling the tube sleeve body 1 and the centrifuge tube body 3, the problem of the tube sleeve body 1 and the centrifuge tube body 3 sliding and separating will not occur.

[0027] The elastic guard sheet 8 is an arc-shaped sheet, and a plurality of elastic guard sheets 8 are provided. The plurality of elastic guard sheets 8 are distributed in a circle with the inner ring opening at the bottom of the tube sleeve body 1 as the center. A rubber protrusion 9 is fixed to the bottom end of the elastic guard sheet 8, and the rubber protrusion 9 is clamped between the elastic guard sheet 8 and the tube sleeve body 1; before the tube sleeve body 1 is sleeved on the centrifuge tube body 3, the plurality of elastic guard sheets 8 are pried apart by fingers, and after the plurality of elastic guard sheets 8 are sleeved on the top of the centrifuge tube body 3, the tube sleeve body 1 is pushed down until the top plate of the tube sleeve body 1 overlaps the tube head step of the centrifuge tube body 3, and at this time, the elastic guard sheet 8 is reset and enclosed on one side of the bottom end of the tube sleeve body 1.

[0028] The outer ring surface of the sleeve body 1 is provided with a finger groove 10, which is an annular groove.

[0029] Embodiment 2, based on embodiment 1, proposes a centrifuge tube, including an outer protective tube sleeve.

[0030] 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. An outer protective sleeve, comprising a sleeve body (1), characterized in that: A rubber sleeve (2) is fixed to the top of the sleeve body (1). Both the rubber sleeve (2) and the sleeve body (1) are sleeved on the centrifuge tube body (3). An elastic guard piece (8) is fixed to the bottom end of the sleeve body (1). The rubber sleeve (2) is a "convex”-shaped circular tube. The inner ring diameter of the rubber sleeve (2) is equal to the outer diameter of the tube head of the sleeve body (1). The top end of the centrifuge tube body (3) is sleeved and screwed with a sealing cover (4), and the sealing cover (4) is clamped on the bottom plate of the rubber sleeve (2). A support ring (6) is fixed in the inner ring opening at the bottom of the sleeve body (1), and an anti-slip ring (7) is fixed to the inner ring surface of the support ring (6). The anti-slip ring (7) is clamped between the support ring (6) and the centrifuge tube body (3) to generate elastic deformation.

2. The outer protective pipe sleeve according to claim 1, characterized in that: The sleeve body (1) has a circular tube structure with an "L”-shaped cross-section, and the top plate of the sleeve body (1) overlaps at the pipe mouth step of the centrifuge tube body (3).

3. The outer protective tube sleeve according to claim 1, characterized in that: A sealing ring (5) is fixed in the inner ring opening at the top of the sleeve body (1), and the sealing ring (5) is clamped between the sleeve body (1) and the centrifuge tube body (3) to generate elastic deformation.

4. The outer protective pipe sleeve according to claim 1, characterized in that: The elastic guard piece (8) is an arc-shaped piece. There are multiple elastic guard pieces (8), and the multiple elastic guard pieces (8) are circumferentially distributed with the inner ring opening at the bottom of the sleeve body (1) as the center.

5. The outer protective pipe sleeve according to claim 1, wherein: A rubber protrusion (9) is fixed to the bottom end of the elastic guard piece (8), and the rubber protrusion (9) is clamped between the elastic guard piece (8) and the sleeve body (1).

6. The outer protective tube sleeve according to claim 1, characterized in that: An annular groove (10) is formed on the outer ring surface of the sleeve body (1).

7. A centrifuge tube, characterized in that: It includes the outer protective sleeve according to any one of the above claims 1-6.

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