Test tube convenient to weld and seal

Abstract

The utility model relates to the technical field of test tubes, in particular to a test tube convenient to weld and seal, which adopts the technical scheme that the test tube comprises a test tube body and a sealing cover, a positioning flange is arranged at the part in the test tube body close to the middle, the sealing cover is arranged at the top of the positioning flange, and an inner cavity is arranged at the bottom of the positioning flange. The sealing cover is cylindrical, and the side face of the sealing cover is attached to the inner side face of the test tube body. The positioning flange is arranged in the middle of the inside of the test tube body, and the sealing cover is arranged on the positioning flange, so that the effect of separating the upper cavity and the lower cavity of the test tube is realized, two substances can be stored in one test tube at the same time, and when the two substances need to be mixed, the two substances can be uniformly mixed. The purpose of mixing can be achieved by opening the glass sealing cover in the middle of the test tube, and two substances can be rapidly and efficiently mixed in the same test tube.

Description

Technical Field

[0001] The utility model relates to the technical field of test tubes, in particular to a test tube which is convenient for welding and sealing. Background Art

[0002] Test tubes are commonly used experimental instruments, mainly used to hold various solids or liquids. Especially when holding liquids, the sealing of the test tube is a matter that must be paid attention to. Test tube sealing technology is often used for the storage of high-purity chemicals or other sensitive substances to isolate the influence of air and moisture and ensure the sealing and consistency of the substances in the test tube.

[0003] The prior art also has the following defects during use:

[0004] In the process of using the test tube in the prior art, in order to achieve special technical effects, the substance in the test tube needs to be sealed in the test tube. The original test tubes are all straight cylinders, and the seals used to seal the test tubes are not easy to weld with the test tubes, resulting in welding difficulties.

[0005] In view of this, we propose a test tube that is easy to weld and seal to solve the existing problems. Utility Model Content

[0006] The utility model aims to provide a test tube which is convenient for welding and sealing, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test tube that is easy to weld and seal, comprising a test tube body and a sealing cover, wherein a positioning flange is provided in the inner part of the test tube body near the middle, a sealing cover is installed on the top of the positioning flange, the positioning flange extends toward the inner cavity of the test tube body, the sealing cover is cylindrical in shape, and the side surface of the sealing cover is slidably fitted with the inner side surface of the test tube body.

[0008] Furthermore, the positioning flange is in the shape of a ring or a plurality of protrusions extending into the inner cavity.

[0009] Furthermore, the test tube body is made of glass.

[0010] Furthermore, the sealing cover is made of the same glass material as the test tube body.

[0011] Furthermore, the flange is integrally formed with the test tube body, the flange is obtained by extending the test tube body inwardly, or the flange is a boss provided on the inner wall of the inner cavity of the test tube body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a positioning flange at the inner middle part of the test tube body, and a sealing cover is provided on the positioning flange, so that the subsequent sealing of the test tube body is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view cross-sectional structural diagram of the annular positioning flange of the utility model;

[0015] Figure 2 It is a front view cross-sectional structure schematic diagram of the point-shaped positioning flange of the utility model;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the annular positioning flange of the utility model;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the point-shaped positioning flange of the utility model.

[0018] In the figure: 1. test tube body; 2. positioning flange; 3. inner cavity; 4. sealing cover. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Embodiment 1

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model proposes a test tube that is easy to weld and seal, including a test tube body 1 and a sealing cover 4. A positioning flange 2 is provided near the middle part of the interior of the test tube body 1. The positioning flange 2 is used to play a positioning role when installing the sealing cover 4, and is used to clamp the sealing cover 4 on the top of the positioning flange 2, so that when the test tube wall is heated, the internal sealing cover 4 can be better adhered to the test tube wall. The top of the positioning flange 2 is installed with the sealing cover 4, and the sealing cover 4 is used to isolate the inner cavity 3 at the bottom of the test tube from the test tube space at the top of the sealing cover 4. The bottom of the positioning flange 2 is provided with an inner cavity 3, and the inner cavity 3 is used to store the substance to be sealed. The sealing cover 4 is cylindrical in shape, and the side of the sealing cover 4 is in contact with the inner side of the test tube body 1. The cylindrical side is in contact with the inner side of the test tube body 1, which is convenient for sticking together when heated.

[0022] Furthermore, the positioning flange 2 is in the shape of a ring or multiple inward protrusions. The ring-shaped positioning flange 2 is conducive to placing the sealing cover 4 more flatly on the positioning flange 2, so that it can fit better to achieve a sealing effect. Multiple inward protrusions can reduce the difficulty of the production process.

[0023] Furthermore, the test tube body 1 is made of glass, which is conducive to better storage of the substance inside.

[0024] Furthermore, the sealing cover 4 is made of the same glass material as the test tube body 1 . The same material can make the two more compatible.

[0025] The flange is integrally formed with the test tube body, and the flange is obtained by extending the test tube body inwardly, or the flange is a boss provided on the inner wall of the inner cavity of the test tube body.

[0026] The working principle of the test tube that is easy to weld and seal based on the first embodiment is: a certain medicine is placed inside the inner cavity 3 of the test tube, and then the sealing cover 4 is placed on the top of the positioning flange 2, the sealing cover 4 and the side wall of the test tube are fitted together, and the outer wall of the test tube where the sealing cover 4 is installed is heated so that the sealing cover 4 and the inner wall of the test tube can be compatible together, so as to achieve the effect of sealing the inner cavity 3 of the test tube.

[0027] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A test tube that is easy to weld and seal, comprising a test tube body (1) and a sealing cover (4), characterized in that: A positioning flange (2) is provided near the middle of the interior of the test tube body (1), a sealing cover (4) is installed on the top of the positioning flange (2), the positioning flange (2) extends toward the inner cavity (3) of the test tube body (1), the sealing cover (4) is cylindrical in shape, and the side surface of the sealing cover (4) is slidably fitted with the inner side surface of the test tube body (1).

2. A test tube that is easy to weld and seal according to claim 1, characterized in that: The positioning flange (2) is in the shape of a ring or a plurality of protrusions extending into the inner cavity (3).

3. A test tube that is easy to weld and seal according to claim 1, characterized in that: The material of the test tube body (1) is glass.

4. A test tube that is easy to weld and seal according to claim 1, characterized in that: The sealing cover (4) is made of the same glass material as the test tube body (1).

5. A test tube that is easy to weld and seal according to claim 1, characterized in that: The flange (2) is integrally formed with the test tube body (1); the flange (2) is obtained by extending the test tube body (1) inwards, or the flange (2) is a boss provided on the inner wall of the inner cavity of the test tube body (1).

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