Test tube for detection

Abstract

The utility model provides a test tube for detection, and relates to the technical field of microbiological detection, the test tube for detection comprises a test tube body and a fixing part, the test tube body is connected with the fixing part, the test tube body comprises a cover plate, a thick tube, a conical tube and a thin tube, the cover plate is connected with the upper part of the thick tube, and the thin tube is connected with the conical tube. The thick pipe is connected with the thin pipe through the conical pipe, and the bottom end of the thin pipe is a closed end. The reaction kettle has the beneficial effects of facilitating uniform mixing of reagents and facilitating observation of experimental results.

Description

Technical Field

[0001] The utility model provides a test tube for detection, which relates to the technical field of biological detection. Background Art

[0002] The safety issues of dairy products have attracted much attention, among which the prominent one is antibiotic residue. Commonly used methods for detecting antibiotic residues include microbiological detection method, physical and chemical inspection method, immunoassay method, rapid detection method, biosensor analysis method, etc. Among them, for the rapid detection method, a mixture of a certain number of bacterial spores and culture medium needs to be first dispensed into containers such as test tubes, and then the sample is added, mixed and cultured, and the color change of the reagent is observed. The total amount of the detected sample extracted is small, and the required culture medium and reagent are also less, and the total liquid amount is generally 300 μL. Test tubes are conventional laboratory supplies, and the volumes of test tubes are 5 ml, 10 ml, etc. After pouring the antibiotic detection reagent in fresh milk into these test tubes with larger volumes, the detection reagent is likely to accumulate at the bottom of the test tube, with a small amount and it is not convenient to observe. If a thinner and longer container is selected, due to the thinner diameter of the container and the smaller internal space, it may cause uneven mixing of the detection culture medium and the sample, affecting the detection effect. Content of the Utility Model

[0003] The utility model provides a test tube for detection, which solves the technical problems in the prior art that the test reagent is easy to accumulate at the bottom of the test tube due to the small amount, which is not convenient to observe, and the thinner and longer container is not conducive to the uniform mixing of the reagent.

[0004] The utility model is realized as follows: it includes a test tube body and a stabilizing component. The test tube body is connected to the stabilizing component. The stabilizing component is made of a transparent material. The test tube body includes a cover plate, a thick tube, a tapered tube and a thin tube. A cover ear extends horizontally outward from the front side of the cover plate. The rear side of the cover plate is connected to the upper part of the thick tube. A cover plug is arranged on the bottom surface of the cover plate, and the cover plug is adapted to the diameter of the thick tube. The thick tube and the thin tube are connected through the tapered tube. The wider end of the diameter of the tapered tube is connected to the thick tube, and the narrower end of the diameter of the tapered tube is connected to the thin tube. The bottom end of the thin tube is a closed end.

[0005] As a further preference, the stabilizing component is a sleeve, the sleeve is sleeved outside the test tube body, and the bottom end of the sleeve is flush with the bottom end of the thin tube.

[0006] As a further preference, the sleeve and the test tube body are integrally formed.

[0007] As a further preference, an external thread is arranged on the lower part of the thick tube, an internal thread is arranged on the upper part of the cylinder, and the external thread is adapted to the internal thread.

[0008] As a further preference, the bottom of the sleeve is in a hollow shape.

[0009] As a further preference, the stabilizing member is a base, and the base is connected to the lower part of the thin tube.

[0010] As a further preference, a connecting tube is provided on the upper part of the base, the connecting tube is adapted to the thin tube, and the lower part of the thin tube extends into the connecting tube.

[0011] As a further preference, a frosted marking area is provided on the outer surface of the thick tube.

[0012] As a further preference, the test tube body is marked with volume scales from bottom to top.

[0013] As a further preference, the lower part of the plug is conical, and two annular sealing strips are provided on the upper part of the plug.

[0014] The working principle of the present utility model is as follows: First, the bacterial spores and the culture medium are mixed evenly, added into the test tube for detection, then the fresh milk sample is added, the cover plate is covered, the test tube is inverted up and down, with the thick tube end facing downwards, and all the mixtures gather in the thick tube, which is convenient for shaking and mixing evenly. Then, the test tube is placed upright, the test tube for detection is kept vertical, the mixed liquid flows back into the thin tube, and then water bath culture is carried out, and observation is carried out after the culture is completed.

[0015] The beneficial effects of the present utility model are as follows: The test tube body of the test tube for detection is divided into three parts, including a thick tube, a conical tube and a thin tube. The upper part is a thick tube, which is convenient for filling the culture medium, reagents and liquid samples. After covering the cover plate and inverting the test tube for detection, the mixed liquid is easy to be mixed evenly in the thick tube part. After mixing evenly, the mixed liquid is concentrated in the thin tube part, which is convenient for observing the color change. The test tube for detection is equipped with a stabilizing member to help the test tube body stand upright on the table top, which is convenient for taking pictures and recording. The stabilizing member can be a sleeve or a base, and neither affects the direct contact between water and the test tube body during water bath culture. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0017] Figure 1 is the overall structural schematic diagram of Embodiment 1 and Embodiment 2;

[0018] Figure 2 is the integrated structural schematic diagram of the sleeve and the test tube body in Embodiment 1;

[0019] Figure 3Schematic diagram of the detachable structure of the sleeve and the test tube body in Embodiment 1;

[0020] Figure 4 Schematic diagram of the base structure in Embodiment 2;

[0021] Identifications in the figure:

[0022] 1 - Test tube body; 2 - Sleeve; 3 - Cover plate; 3a - Cover ear; 3b - Cover plug; 4 - Thick tube; 5 - Conical tube; 6 - Thin tube; 7 - Base; 8 - Frosted identification area. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0024] Refer to Figure 1 The test tube for detection includes a test tube body 1 and a stabilizing member. The test tube body 1 is connected to the stabilizing member. The test tube body is marked with volume scales from bottom to top (not shown in the figure), which can effectively verify the volumes of the detection liquid and the sample liquid. The test tube body includes a cover plate 3, a thick tube 4, a conical tube 5, and a thin tube 6. A cover ear 3a extends horizontally outward from the front side of the cover plate 3, facilitating the covering or lifting of the cover plate 3. The rear side of the cover plate 3 is connected to the upper part of the thick tube 4 through a U-shaped connecting member. A cover plug 3b is provided on the bottom surface of the cover plate 3. The cover plug 3b is formed by a downward depression at the center of the cover plate 3. The lower part of the cover plug 3b is conical, facilitating the smooth insertion of the cover plug 3b into the upper opening of the test tube body 1. The cover plug 3b is adapted to the inner diameter of the thick tube 4. Two slightly protruding sealing strips (not shown in the figure) are provided on the vertical part of the outer circle of the cover plug 3b near the lower part of the cover plug 3b. The sealing strips are annular, that is, the sealing strips are on the upper surface of the conical part of the cover plug 3b. When the cover plate 3 is closed, the protruding sealing strips can tightly combine with the test tube body 1, effectively preventing liquid leakage. The two sealing strips play a dual insurance role. A frosted identification area 8 is provided on the outer surface of the thick tube 4 for pasting labels.

[0025] Refer to Figure 1 The thick tube 4 is connected to the thin tube 6 through the conical tube 5. The wider end of the inner diameter of the conical tube 5 is connected to the thick tube 4, and the narrower end of the inner diameter of the conical tube 5 is connected to the thin tube 6. The bottom end of the thin tube 6 is a closed end. The length ratios of the thick tube 4, the conical tube 5, and the thin tube 6 can be adjusted according to needs.

[0026] Refer to Figure 2 and Figure 3 In this embodiment, the stabilizing member is selected as the sleeve 2. The sleeve 2 is made of a transparent material. The sleeve 2 is sleeved outside the test tube body 1, and the bottom end of the sleeve 2 is flush with the bottom end of the thin tube 6. Refer to Figure 2 , the sleeve 2 and the test tube body 1 can be integrally formed; Refer to Figure 3 , the sleeve 2 and the test tube body can also be detachably connected. For example, by means of a threaded connection, an external thread is provided on the lower part of the thick tube 4, and an internal thread is provided on the upper part of the sleeve 2. The external thread is adapted to the internal thread. By screwing the sleeve 2, the detachable connection between the sleeve 2 and the test tube body 1 is realized. The bottom of the sleeve 2 is in a hollow shape, facilitating direct contact between water and the thin tube 6 during water bath culture. Embodiment

[0027] Refer to Figure 1 , the test tube for detection includes a test tube body 1 and a stabilizing member. The test tube body 1 is connected to the stabilizing member. The test tube body is marked with standard volume graduations (not shown in the figure) from bottom to top, which can effectively verify the volumes of the detection liquid and the sample liquid. The test tube body includes a cover plate 3, a thick tube 4, a conical tube 5, and a thin tube 6. A cover ear 3a extends horizontally outward from the front side of the cover plate 3, facilitating the covering or lifting of the cover plate 3. The rear side of the cover plate 3 is connected to the upper part of the thick tube 4 through a U-shaped connecting member. A cover plug 3b is provided on the bottom surface of the cover plate 3. The cover plug 3b is formed by a downward depression at the center of the cover plate 3. The lower part of the cover plug 3b is conical, facilitating the smooth insertion of the cover plug 3b into the upper opening of the test tube body 1. The cover plug 3b is adapted to the diameter of the thick tube 4. Two slightly raised sealing strips (not shown in the figure) are provided on the vertical part of the outer circle of the cover plug 3b near the lower part of the cover plug 3b. The sealing strips are annular, that is, the sealing strips are on the upper surface of the conical part of the cover plug 3b. When the cover plate 3 is closed, the raised sealing strips can tightly combine with the test tube body 1, effectively preventing liquid leakage. The two sealing strips play a dual insurance role. A frosted marking area 8 is provided on the outer surface of the thick tube 4 for attaching labels.

[0028] Refer to Figure 1 , the thick tube 4 and the thin tube 6 are connected through the conical tube 5. The wider end of the diameter of the conical tube 5 is connected to the thick tube 4, and the narrower end of the diameter of the conical tube 5 is connected to the thin tube 6. The bottom end of the thin tube 6 is a closed end. The length ratio of the thick tube 4, the conical tube 5, and the thin tube 6 can be adjusted as needed.

[0029] Refer to Figure 4, in this embodiment, the stabilizing component is selected as the base 7. The base 7 is sleeved on the bottom of the thin tube 6. The cross-sectional area of the base 7 is larger than the diameter of the thick tube 4, which is convenient for the test tube used for detection to be placed on a horizontal plane for observation. The base 7 can be conical, circular, square or other shapes that are conducive to the test tube used for detection to stand upright on the horizontal plane.

[0030] The working principle of the present utility model is as follows: First, mix the bacterial spores and the culture medium evenly, add them into the test tube for detection, then add the fresh milk sample, cover the cover plate, invert the test tube, with the thick tube end facing downwards, and all the mixtures gather in the thick tube, which is convenient for shaking and mixing evenly. Then, place the test tube upright, keep the test tube for detection vertical, and the mixed liquid flows back into the thin tube. Then, perform water bath culture, and observe after the culture is completed.

[0031] The beneficial effects of the present utility model are as follows: The test tube body of the test tube used for detection is divided into three parts, including a thick tube, a conical tube and a thin tube. The upper part is the thick tube, which is convenient for filling the culture medium, reagents and liquid samples. Cover the cover plate and invert the test tube for detection, and the mixed liquid is easy to be mixed evenly in the thick tube part. After mixing evenly, the mixed liquid is concentrated in the thin tube part, which is convenient for observing the color change. The test tube used for detection is equipped with a stabilizing component to help the test tube body stand upright on the tabletop, which is convenient for taking pictures and recording. The stabilizing component can be a sleeve or a base, and neither affects the direct contact between water and the test tube body during water bath culture.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A test tube for detection, characterized in that: The test tube body comprises a test tube body and a stabilizing component, wherein the test tube body is connected to the stabilizing component, and the stabilizing component is made of transparent material; the test tube body comprises a cover plate, a thick tube, a tapered tube and a thin tube, the front side of the cover plate horizontally extends outward to form a cover ear, the rear side of the cover plate is connected to the upper part of the thick tube, a cover plug is provided on the bottom surface of the cover plate, and the cover plug is adapted to the diameter of the thick tube; the thick tube and the thin tube are connected through the tapered tube, the wider end of the tapered tube is connected to the thick tube, the narrower end of the tapered tube is connected to the thin tube, and the bottom end of the thin tube is a closed end.

2. The test tube for detection according to claim 1, characterized in that: The stabilizing component is a sleeve, which is sleeved on the outside of the test tube body, and the bottom end of the sleeve is flush with the bottom end of the capillary.

3. The test tube for detection according to claim 2, characterized in that: The sleeve is integrally formed with the test tube body.

4. The test tube for detection according to claim 2, characterized in that: The lower part of the thick pipe is provided with an external thread, and the upper part of the sleeve is provided with an internal thread, and the external thread is adapted to the internal thread.

5. The test tube for detection according to claim 3 or 4, characterized in that: The bottom of the sleeve is hollow.

6. The test tube for detection according to claim 1, characterized in that: The stabilizing component is a base, and the base is connected to the lower part of the capillary.

7. The test tube for detection according to claim 6, characterized in that: A connecting tube is provided on the upper part of the base, the connecting tube is adapted to the thin tube, and the lower part of the thin tube extends into the connecting tube.

8. The test tube for detection according to claim 1, characterized in that: The outer surface of the thick tube is provided with a frosted marking area.

9. The test tube for detection according to claim 1, characterized in that: The test tube body is marked with volume scales from bottom to top.

10. The test tube for detection according to claim 1, characterized in that: The cover plug is formed by a downward depression at the center of the cover plate, the lower part of the cover plug is conical, and the upper part of the cover plug is provided with two annular sealing strips.

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