Test tube

Abstract

The utility model provides a test tube which comprises a tube body with an upper opening; the pipe cap comprises a connecting cap connected to the upper opening of the pipe body and a stop structure arranged above the connecting cap; the transfer pipette is arranged on the connecting cap in a penetrating manner, an operating head of the transfer pipette is positioned on the outer side of the pipette body, the stop structure is positioned on the circumferential outer side of the operating head, a gap is formed between the stop structure and the operating head, and two avoiding openings which are oppositely formed are formed in the stop structure. By applying the technical scheme provided by the utility model, the problem that the pipette on the test tube in the prior art is easy to touch by mistake, so that the pipetting is inaccurate can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of experimental devices, and more particularly, to a test tube. Background Art

[0002] In the prior art, there is a test tube with a pipetting function, which includes a tube body and a pipette. During use, by pinching the operating head at the upper end of the pipette, a predetermined volume of solution can be accurately pipetted.

[0003] However, during cultivation, transportation, or other operations, there may be a phenomenon of accidentally squeezing the operating head, resulting in a decrease in the volume of the solution finally released by the pipette, thus affecting the final test result. Summary of the Utility Model

[0004] The main object of the utility model is to provide a test tube to solve the problem that the pipette on the test tube in the prior art is easily accidentally touched, resulting in inaccurate pipetting.

[0005] To achieve the above object, the utility model provides a test tube, including: a tube body having an upper opening; a tube cap including a connecting cap connected to the upper opening of the tube body and a stop structure disposed above the connecting cap; a pipette passing through the connecting cap, the operating head of the pipette being located outside the tube body, the stop structure being located on the circumferential outside of the operating head, there being a gap between the stop structure and the operating head, and there being two relatively arranged avoidance openings on the stop structure.

[0006] In one embodiment, the end of the operating head is located inside the end face of the stop structure in the axial direction of the tube cap.

[0007] In one embodiment, the stop structure includes a retaining wall surrounding the circumferential outside of the operating head, wherein the retaining wall includes two relatively arranged first retaining pieces, and two openings between the two first retaining pieces form two avoidance openings; alternatively, two avoidance holes are relatively provided on the retaining wall, and the avoidance holes form the avoidance openings.

[0008] In one embodiment, the test tube includes retaining walls of multiple specifications, the diameter of each retaining wall is different, and the retaining walls are detachably disposed on the connecting cap.

[0009] In one embodiment, the stop structure includes a plurality of second retaining pieces surrounding the circumferential outside of the operating head, there being an opening between the two side end faces of adjacent two second retaining pieces, and two relatively arranged openings among the plurality of openings form two avoidance openings.

[0010] In one embodiment, the stop structure includes a retaining net surrounding the circumferential outside of the operating head, and two relatively arranged mesh holes among the plurality of mesh holes of the retaining net form two avoidance openings.

[0011] In one embodiment, the tube cap is an integrally formed structure.

[0012] In one embodiment, the pipette includes a pipette tip and a swab tip.

[0013] In one embodiment, the tube cap further includes two auxiliary stop structures, which are respectively arranged at two avoidance openings. Among them, there is a breakable structure between the auxiliary stop structure and the stop structure, or there is a breakable structure between the auxiliary stop structure and the connecting cap.

[0014] In one embodiment, the breakable structure is a notch or a connecting protrusion.

[0015] Applying the technical solution of the present utility model, when it is necessary to transfer liquid, the operator's thumb and index finger respectively extend into the two avoidance openings, and then squeeze the operation head from both sides to achieve the aspiration of a predetermined amount of liquid. During the cultivation (transportation) process, if there is a situation where an item topples over to the test tube (or other human factors), the stop structure can stop the toppled item (or block a person), reducing the probability of accidentally touching the operation head, ensuring the accuracy of the final liquid transfer, and ultimately ensuring the accuracy of the test results.

[0016] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present utility model in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the accompanying

[0018] FIGURES:

[0019] Figure 1 Shows a three-dimensional structural schematic diagram of the first embodiment of the test tube according to the present utility model;

[0020] Figure 2 Shows Figure 1 a top view schematic diagram of the test tube;

[0021] Figure 3 Shows Figure 2 a cross-sectional schematic diagram of the test tube in the A-A direction.

[0022] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0023] 1, clearance; 2, avoidance opening; 10, tube body; 20, tube cap; 21, connecting cap; 22, stop structure; 221, first baffle; 30, pipette; 31, operation head; 32, pipette tip; 33, swab tip. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0025] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances for the embodiments of the present utility model described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] As Figures 1 to 3 shown, in the first embodiment, the test tube includes: a tube body 10, a tube cap 20, and a pipette 30. Among them, the tube body 10 has an upper opening; the tube cap 20 includes a connecting cap 21 connected to the upper opening of the tube body 10 and a stop structure 22 provided above the connecting cap 21; the pipette 30 is inserted through the connecting cap 21, the operating head 31 of the pipette 30 is located outside the tube body 10, the stop structure 22 is located on the circumferential outside of the operating head 31, there is a gap 1 between the stop structure 22 and the operating head 31, and there are two relatively arranged avoidance openings 2 on the stop structure 22.

[0029] Applying the technical solution of Application Example 1, when it is necessary to aspirate liquid, the thumb and index finger of the operator respectively extend into the two avoidance openings 2, and then the operation head 31 is squeezed from both sides, so as to aspirate a predetermined amount of liquid. During the cultivation (or transportation) process, if there is a situation where an item is tilted towards the test tube (or other human factors), the stop structure 22 can stop the tilted item (or block a person), reducing the probability of accidentally touching the operation head 31, ensuring the accuracy of the final liquid transfer, and ultimately ensuring the accuracy of the test results.

[0030] As Figures 1 to 3 shown, in Example 1, the end of the operation head 31 is located inside the end face of the stop structure 22 in the axial direction of the tube cap 20. The above structure makes the height of the stop structure 22 relatively high, thereby further protecting the operation head 31, reducing the probability of accidentally touching the operation head 31, and ensuring the accuracy of the final liquid transfer.

[0031] As Figures 1 to 3 shown, in Example 1, the stop structure 22 includes a retaining wall surrounding the outer circumference of the operation head 31. Among them, the retaining wall includes two first retaining pieces 221 arranged opposite to each other, and two openings between the two first retaining pieces 221 form two avoidance openings 2. The above structure is simple and easy to process.

[0032] In Example 1, the tube cap 20 is an integrally formed structure. The above structure is simple, easy to process, and has a low cost.

[0033] As Figure 3 shown, in Example 1, the pipette 30 includes a pipette tip 32 and a swab tip 33. The above structure enables the pipette 30 to have both the function of accurately aspirating liquid and the function of smearing.

[0034] The difference between the test tube of Example 2 and that of Example 1 lies only in the shape of the stop structure 22. Specifically, in Example 3 (not shown in the figure), there are two avoidance holes provided opposite to each other on the retaining wall, and the avoidance holes form the avoidance openings 2. Specifically, the retaining wall is a closed ring, and only two avoidance holes for respectively avoiding the thumb and index finger are provided on the side wall. This makes the wrapping property of the stop structure 22 for the operation head 31 better, further reducing the probability of accidentally touching the operation head 31.

[0035] The difference between the test tube of Example 3 and that of Example 1 lies only in the shape of the stop structure 22. Specifically, in Example 4 (not shown in the figure), the stop structure 22 includes a plurality of second retaining pieces surrounding the outer circumference of the operation head 31. There is an opening between the two side end faces of adjacent two second retaining pieces, and two opposite openings among the plurality of openings form two avoidance openings 2. The above structure is simple, and the operation head 31 can be squeezed (pinched) from multiple directions, that is, when aspirating liquid, it is not necessary to pre-adjust the position of the test tube, and the operation head 31 can be operated, simplifying the operation difficulty.

[0036] The test tube of Example 4 is only different from that of Example 1 in the shape of the stop structure 22. Specifically, in Example 5 (not shown in the figure), the stop structure 22 includes a net enclosing the outer circumference of the operation head 31, and two opposite mesh holes among the multiple mesh holes of the net form two avoidance openings 2. The above structure is simple. On the premise of reducing the probability of accidentally touching the operation head 31, the material consumption of the tube cap 20 is reduced, and the cost is lowered. In addition, like Example 4, when using the test tube of Example 5, the operation head 31 can be squeezed (pinched) from multiple directions, that is, when pipetting, it is not necessary to pre-adjust the position of the test tube to operate the operation head 31, which simplifies the operation difficulty.

[0037] The test tube of Example 5 is only different from that of Example 1 in the structure of the tube cap 20. Specifically, in Example 5, the tube cap 20 further includes two auxiliary stop structures (not shown in the figure), and the two auxiliary stop structures are respectively arranged at the two avoidance openings 2. Among them, there is a frangible structure between the auxiliary stop structure and the stop structure 22, or there is a frangible structure between the auxiliary stop structure and the connecting cap 21. Applying the technical solution of this embodiment, during the transportation process when the test tube is not in use, the stop structure and the auxiliary stop structure jointly play a role in protecting the operation head 31, so that the operation head 31 is not easily damaged during transportation, ensuring the service life of the test tube. It should be noted that before formally using the test tube, apply force to the auxiliary stop structure to separate the auxiliary stop structure from the stop structure 22 or the connecting cap 21. When the auxiliary stop structure falls off, the two avoidance openings 2 are exposed, and subsequent operations can be carried out.

[0038] Preferably, in Example 5, the frangible structure is a notch or a connecting protrusion. Of course, in other embodiments, the frangible structure can also be other connecting structures that are easily broken after being stressed, which will not be elaborated here.

[0039] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding interpretations are made for the spatial relative descriptions used here.

[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0042] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A test tube, characterized in that: include: A tube body (10) having an upper opening; A pipe cap (20) comprising a connecting cap (21) connected to the upper opening of the pipe body (10) and a stopper structure (22) arranged above the connecting cap (21); A pipette (30) is inserted into the connecting cap (21); an operating head (31) of the pipette (30) is located outside the tube body (10); the stop structure (22) is located outside the operating head (31) in the circumferential direction; a gap (1) is provided between the stop structure (22) and the operating head (31); and the stop structure (22) has two avoidance openings (2) arranged opposite to each other.

2. The test tube according to claim 1, characterized in that The end of the operating head (31) is located on the inner side of the end surface of the stop structure (22) in the axial direction of the pipe cap (20).

3. The test tube according to claim 1, characterized in that The stop structure (22) comprises a stop wall arranged on the outer side of the operating head (31) in the circumferential direction, wherein: The retaining wall comprises two first retaining plates (221) arranged opposite to each other, and two openings between the two first retaining plates (221) form the two avoidance openings (2); or, Two avoidance holes are arranged opposite to each other on the retaining wall, and the avoidance holes form the avoidance opening (2).

4. The test tube according to claim 3, characterized in that The test tube comprises retaining walls of multiple specifications, each retaining wall having a different diameter, and the retaining wall is detachably arranged on the connecting cap (21).

5. The test tube according to claim 1, characterized in that The stop structure (22) comprises a plurality of second stoppers arranged around the outer side of the operating head (31) in a circumferential direction, an opening being provided between two side end surfaces of two adjacent second stoppers, and two opposite openings of the plurality of openings forming the two avoidance openings (2).

6. The test tube according to claim 1, characterized in that The stop structure (22) comprises a stop net arranged around the outer side of the operating head (31) in the circumferential direction, and two opposite mesh holes among a plurality of mesh holes of the stop net form the two avoidance openings (2).

7. The test tube according to claim 1, characterized in that The pipe cap (20) is an integrally formed structure.

8. The test tube according to claim 1, characterized in that The pipette (30) comprises a pipette head (32) and a swab head (33).

9. The test tube according to claim 1, characterized in that The pipe cap (20) further comprises two auxiliary stop structures, wherein the two auxiliary stop structures are respectively arranged at the two avoidance openings (2), wherein: There is an easy-to-break structure between the auxiliary stop structure and the stop structure (22), or, An easily foldable structure is provided between the auxiliary stop structure and the connecting cap (21).

10. The test tube according to claim 9, characterized in that The easy-to-break structure is a notch or a connecting protrusion.

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