Sample preservation tube

Abstract

The utility model provides a sample preservation tube which comprises a container main body and a screw cover, a hollow cavity is arranged in the container main body, the top of the hollow cavity is open, the bottom of the hollow cavity is closed, and the top end of the container main body is detachably connected with the screw cover; a hollow rod body is connected to the spiral cover, the lower end of the hollow rod body extends into the bottom of the hollow cavity, a plurality of stirring strips extending outwards are arranged on the outer side wall of the lower portion of the hollow rod body, the upper end of the hollow rod body upwards penetrates out of the spiral cover and is rotatably connected to the spiral cover, and an air bag is fixedly connected to the end, located outside the spiral cover, of the hollow rod body; and the air bag is communicated with the hollow rod body. The liquid sample collector is simple in structure, has a stirring function, is convenient for collecting some special liquid samples, is high in practicability, and has relatively high popularization and application values.

Description

Technical Field

[0001] The utility model relates to the technical field of biological experiments, and particularly relates to a sample storage tube. Background Art

[0002] Sample storage tubes are widely used in the medical field and the field of molecular biology. At present, most of the existing sample storage tubes on the market are simply composed of a screw cap and a tubular container. Such ordinary sample storage tubes have the following deficiencies in the use process:

[0003] First, after sampling, some samples cannot be directly and fully stirred and mixed on-site, so that the protective liquid and the sampling substance cannot be fully contacted, such as fecal samples;

[0004] Second, after the samples are sent to the laboratory, they need to be shaken and mixed. However, some samples are not easy to shake or tend to sink to the bottom. Therefore, it is often necessary to blow and mix the samples by opening the screw cap, and this step is prone to aerosol contamination;

[0005] Third, it is not convenient to collect liquid samples, such as the collection of loose stool samples.

[0006] Therefore, we propose a new type of sample storage tube to solve the above technical problems existing in the prior art. Content of the Utility Model

[0007] The purpose of the utility model is to provide a sample storage tube to solve the problems that the prior art cannot simultaneously take into account functions such as stirring and mixing and sucking.

[0008] To achieve the above purpose, the utility model adopts the following technical scheme: A sample storage tube includes a container body and a screw cap. A hollow cavity is arranged inside the container body. The top of the hollow cavity is open and the bottom is closed. The top end of the container body is detachably connected to the screw cap. A hollow rod is connected to the screw cap. The lower end of the hollow rod extends into the bottom of the hollow cavity, and a plurality of stirring strips extending outwards are arranged on the outer side wall of the lower part of the hollow rod. The upper end of the hollow rod penetrates upwards through the screw cap and is rotatably connected to the screw cap. One end of the hollow rod located outside the screw cap is fixedly connected with an airbag, and the airbag is communicated with the hollow rod.

[0009] Further, a knob is fixedly connected to the part of the hollow rod located outside the screw cap. The knob is a hollow cylinder with an open upper end, and the airbag is arranged in the hollow part of the knob.

[0010] Further, a first sealing ring is arranged at the connection between the hollow rod and the screw cap, and a clearance fit is formed between the hollow rod and the first sealing ring.

[0011] Further, an annular groove is provided on the inner circumferential wall of the first sealing ring, and an annular protrusion is formed on the hollow rod body to cooperate with the annular groove.

[0012] Further, a spoon-shaped structure is provided on the outer lateral wall of the lower part of the hollow rod body.

[0013] Further, a reinforcing sealing structure is provided inside the screw cap. The reinforcing sealing structure includes an annular ring and a second sealing ring. The annular ring is fixedly connected to the inner top wall of the screw cap, and its outer diameter is smaller than the inner diameter of the container body, forming a certain distance from the container body. The second sealing ring is fixedly connected to the lower end of the annular ring. The second sealing ring has an elastic skirt extending towards the container body, and an elastic contact is formed between the elastic skirt and the container body.

[0014] After adopting the above technical solution, the following beneficial effects are achieved compared with the existing technology:

[0015] 1. It can fully stir the sample without opening the lid, so that the sample and the protective liquid can be fully mixed;

[0016] 2. It can stir without opening the lid and can also avoid the lid-opening operation when the sample is not easily shaken or easily sinks to the bottom, preventing aerosol contamination;

[0017] 3. It is convenient to collect liquid samples (such as loose stools), avoiding the problem of insufficient sample volume caused by insufficient collection of some special liquid samples.

[0018] All in all, the structure of the present utility model is simple, has a stirring function, is convenient for collecting some special liquid samples at the same time, has strong practicability, and has high popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the screw cap 2 in the present utility model;

[0022] Figure 3 is a schematic partial structural diagram of the present utility model;

[0023] Figure 4It is a partial structural schematic diagram when the spoon-shaped structure 35 is arranged on the hollow rod body 3 of the present utility model;

[0024] Figure 5 It is a structural schematic diagram when the enhanced sealing structure 5 is arranged in the present utility model;

[0025] Figure 6 It is a structural schematic diagram of the screw cap 2 in Embodiment 3 of the present utility model.

[0026] Explanation of reference numerals: 1, container main body; 11, hollow cavity; 2, screw cap; 3, hollow rod body; 31, stirring bar; 32, annular protrusion; 33, knob; 34, airbag; 35, spoon-shaped structure; 4, first sealing ring; 41, groove; 5, enhanced sealing structure; 51, annular ring; 52, second sealing ring; 521, elastic skirt. Detailed implementation manners

[0027] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] Aiming at the problems existing in the prior art, the present utility model provides a sample storage tube, which will be described in detail below in conjunction with the drawings.

[0029] Embodiment 1

[0030] Referring to Figures 1 - 3 As shown, the technical solution adopted in this specific implementation manner is: a sample storage tube mainly includes a container main body 1 and a screw cap 2. A hollow cavity 11 is provided inside the container main body 1. The top of the hollow cavity 11 is open and the bottom is closed. The hollow cavity 11 is used to store the collected samples. The container main body 1 is made of transparent plastic, and it is detachably connected to the screw cap 2 at its top. Specifically, the container main body 1 and the screw cap 2 can be connected by a threaded connection.

[0031] A hollow rod body 3 is connected to the screw cap 2. The lower end of the hollow rod body 3 extends into the bottom of the hollow cavity 11, and multiple stirring bars 31 are provided on the outer side of the bottom of the hollow rod body 3. These stirring bars 31 are arranged in an octopus shape on the hollow rod body 3. The upper end of the hollow rod body 3 extends upward through the screw cap 2, and a first sealing ring 4 is provided at its connection to enhance the sealing performance and prevent liquid leakage. The first sealing ring 4 is snap-fitted and installed on the hole opened in the center of the screw cap 2. An annular groove 41 is provided on the inner wall of its inner circle. An annular protrusion 32 that cooperates with the annular groove 41 is formed at the connection between the hollow rod body 3 and the first sealing ring 4.

[0032] A knob 33 is fixedly connected to the outer end of the hollow rod body 3 located outside the screw cap 2. By rotating the knob 33, the hollow rod body 3 is driven to rotate, and then the stirring bar 31 is driven to fully stir the sample inside the hollow cavity 11.

[0033] In addition, the knob 33 is a hollow cylinder with an open upper end, and an airbag 34 that can undergo elastic deformation is arranged inside it. The airbag 34 is communicated with the hollow rod body 3. By pressing to expel the air inside the airbag 34 and the hollow rod body 3, the liquid sample can be aspirated and collected.

[0034] Embodiment 2

[0035] Refer to Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that a spoon-shaped structure 35 is arranged on the outer side wall of the lower part of the hollow rod body 3. The setting of the spoon-shaped structure 35 increases the collection function of the sample storage tube. While facilitating the collection of liquid samples, it can also be used to dig and collect ordinary feces.

[0036] Embodiment 3

[0037] Refer to Figures 5 - 6 As shown, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that a strengthened sealing structure 5 is arranged inside the screw cap 2. The strengthened sealing structure 5 includes an annular ring 51 fixedly connected to the inner top wall of the screw cap 2. The outer diameter of the annular ring 51 is smaller than the inner diameter of the container body 1, and there is a certain distance between the outer wall of the annular ring 51 and the inner wall of the container body 1. A second sealing ring 52 is fixedly connected to the bottom end of the annular ring 51. The second sealing ring 52 has an elastic skirt 521 extending towards the container body 1. The elastic skirt 521 arches upwards and forms an acute angle with the outer wall of the annular ring 51. After the container body 1 is connected to the screw cap 2, the end of the elastic skirt 521 elastically abuts against the inner wall of the container body 1, thereby improving the connection sealing performance between the container body 1 and the screw cap 2, ensuring the safety and hygiene of the sample during transportation, and further avoiding odor leakage.

[0038] Furthermore, anti-slip grooves with concavities and convexities can be arranged on the outer side walls of the knob 33 and the screw cap 2.

[0039] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0040] The above is only used to illustrate the technical solution of the present utility model and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model should be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.

Claims

1. A sample storage tube, characterized in that, It includes a container body and a screw cap. A hollow cavity is provided inside the container body. The top of the hollow cavity is open and the bottom is closed. The top end of the container body is detachably connected to the screw cap. A hollow rod is connected to the screw cap. Its lower end extends into the bottom of the hollow cavity, and there are a plurality of stirring bars extending outward on the outer side wall of its lower part. The upper end of the hollow rod penetrates upward through the screw cap and is rotatably connected to the screw cap. One end of the hollow rod located outside the screw cap is fixedly connected with an airbag, and the airbag is communicated with the hollow rod.

2. The sample storage tube according to claim 1, wherein A knob is fixedly connected to the part of the hollow rod located outside the screw cap. The knob is a hollow cylinder with an open top, and the airbag is arranged in the hollow part of the knob.

3. The sample storage tube according to claim 1, characterized in that, A first sealing ring is arranged at the connection between the hollow rod and the screw cap, and a clearance fit is formed between the hollow rod and the first sealing ring.

4. The sample storage tube according to claim 3, wherein, An annular groove is provided on the inner circumferential wall of the first sealing ring, and an annular protrusion matching the annular groove is formed on the hollow rod.

5. The sample storage tube according to claim 1, characterized in that, A spoon-shaped structure is provided on the outer side wall of the lower part of the hollow rod.

6. The sample storage tube according to any one of claims 1 or 5, characterized in that, A strengthened sealing structure is arranged inside the screw cap. The strengthened sealing structure includes an annular ring and a second sealing ring. The annular ring is fixedly connected to the inner top wall of the screw cap, and its outer diameter is smaller than the inner diameter of the container body, forming a certain distance from the container body. The second sealing ring is fixedly connected to the lower end of the annular ring. The second sealing ring has an elastic skirt extending towards the container body, and an elastic contact is formed between the elastic skirt and the container body.

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