Pipette and test tube with same

Abstract

The utility model provides a transfer pipette and a test tube with the same, and the transfer pipette comprises a tube body with an upper opening; the pipetting head is arranged at the bottom of the tube body and is communicated with the interior of the tube body; the swab head comprises a swab handle and a swab, the swab handle, the pipetting head and the tube body are of an integrally formed structure, the swab handle is provided with a connecting section connected with the tube body and an easy-to-fold section located below the connecting section, and the swab is attached to the easy-to-fold section. By applying the technical scheme provided by the utility model, the problems of complicated processing steps and high production cost of the pipette in the prior art can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of experimental devices, and in particular, to a pipette and a test tube having the same. Background Art

[0002] A pipette is a measuring instrument used to accurately transfer a certain volume of solution. As a measuring-out instrument, it is generally only used to measure the volume of the solution it discharges. The usual structure is a slender glass tube with a bulged part in the middle, with a pointed tip at the lower end and a calibration line engraved at the upper neck of the tube to mark the accurate volume taken.

[0003] In the actual use process, it is necessary to first smear and then transfer the liquid for experimental operations, and the above-mentioned basic pipette is still difficult to meet the needs of experimental smearing. To meet the above needs, the prior art has improved the pipette. For example, the pipette mentioned in the patent with the publication number CN218872249 U. The pipette includes a tube body, an operation port is arranged at the top of the tube body, a liquid transfer port is arranged at the bottom of the tube body, and a quick-release interface is also arranged at the bottom of the tube body. The quick-release interface is adjacent to the liquid transfer port and is used to install the rod end of a sampling swab. When it is necessary to smear with a swab, the operator can dip the liquid through the swab part for the smearing work required by the experiment. After the smearing is completed, the sampling swab is removed, and it is restored to a pipette, and a certain volume of the sampled liquid can be accurately transferred for detection.

[0004] For the above-mentioned pipette, in actual production, it is necessary to separately produce the tube body and the sampling swab, and then assemble the two together. This results in cumbersome processing steps and high production costs of the pipette. Summary of the Utility Model

[0005] The main purpose of the present utility model is to provide a pipette and a test tube having the same, so as to solve the problems of cumbersome processing steps and high production costs of the pipette in the prior art.

[0006] To achieve the above purpose, according to one aspect of the present utility model, there is provided a pipette, including: a tube body having an upper opening; a liquid transfer head arranged at the bottom of the tube body and communicating with the inside of the tube body; a swab head including a swab handle and a swab, the swab handle, the liquid transfer head and the tube body are integrally formed structures, the swab handle has a connection section connected to the tube body and a breakable section located below the connection section, and the swab is attached to the breakable section.

[0007] In one embodiment, a groove is provided on the swab handle, and the groove divides the swab handle into a connecting section and a breakable section; alternatively, the outer diameter of the breakable section is smaller than that of the connecting section; alternatively, a blind hole extending upward is provided at the end of the swab handle, and the part of the swab handle with the blind hole forms the breakable section, and the remaining part forms the connecting section; alternatively, the connecting section and the breakable section are made of two different plastics, and the swab handle is made by a two-material injection molding process.

[0008] In one embodiment, the end of the connecting section is flush with the end of the pipette tip or extends downward beyond the end of the pipette tip.

[0009] In one embodiment, the swab is any one of sponge, flocked, and cotton.

[0010] In one embodiment, the pipette further includes: an operation head disposed at the upper opening of the tube body.

[0011] In one embodiment, scale lines are provided on the tube body.

[0012] According to another aspect of the present invention, a test tube is provided, including: a test tube body; a pipette extending into the test tube body, and the pipette is the above-mentioned pipette.

[0013] In one embodiment, the pipette further includes: an operation head, the operation head is disposed at the upper opening of the pipette tube body, the test tube further includes: a tube cap, including a connecting cap connected to the upper opening of the test tube body and a stop structure disposed above the connecting cap, the pipette passes through the connecting cap, the operation head of the pipette is located outside the test tube body, the stop structure is located on the circumferential outside of the operation head, there is a gap between the stop structure and the operation head, and two avoidance openings are arranged oppositely on the stop structure.

[0014] In one embodiment, the end of the operation head is located inside the end face of the stop structure in the axial direction of the tube cap.

[0015] In one embodiment, the stop structure includes a retaining wall surrounding the circumferential outside of the operation head, the retaining wall includes two first retaining pieces arranged oppositely, and two openings between the two first retaining pieces form two avoidance openings.

[0016] When applying the technical solution of the present utility model for experimental operations, the operator first uses the swab of the pipette to perform the smearing work, and then moves the pipette above the test tube. By making the breakable section abut against the mouth of the test tube, the breakable section breaks from the connecting section, and the breakable section with the swab attached thereto falls into the liquid in the test tube. After a predetermined time, the operator then sucks the liquid in the test tube into the tube body through the pipette tip, and subsequently the operator can perform the conventional pipetting operation. Applying the technical solution of Embodiment 1 can enable the operator to conveniently perform the smearing work during pipetting and facilitate the experimental operations for the operator. More importantly, when manufacturing this pipette, first produce the integrally formed tube body, swab handle, and pipette tip, and then attach the swab to the swab handle. This simplifies the production steps of the pipette, thereby improving the production efficiency and reducing the production cost.

[0017] 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

[0018] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 Shows a longitudinal sectional structure schematic diagram of Embodiment 1 of the pipette according to the present utility model;

[0020] Figure 2 Shows Figure 1 A partially enlarged structure schematic diagram of the pipette;

[0021] Figure 3 Shows a partially enlarged view of the longitudinal sectional structure of Embodiment 2 of the pipette according to the present utility model;

[0022] Figure 4 Shows a partially enlarged view of the longitudinal sectional structure of Embodiment 3 of the pipette according to the present utility model;

[0023] Figure 5 Shows a partially enlarged view of the longitudinal sectional structure of Embodiment 4 of the pipette according to the present utility model;

[0024] Figure 6 Shows a three-dimensional structure schematic diagram of the test tube according to the present utility model;

[0025] Figure 7 Shows Figure 6 A top view of the test tube;

[0026] Figure 8 ShowsFigure 7 Schematic cross-sectional view of the test tube in the A-A direction; and

[0027] Figure 9 shows Figure 8 Schematic enlarged view of the structure at position B of the test tube.

[0028] Among them, the above-mentioned drawings include the following reference numerals:

[0029] 1. Gap; 2. Avoidance opening; 10. Test tube body; 20. Tube cap; 21. Connecting cap; 22. Stopping structure; 221. First baffle; 30. Pipette; 31. Operating head; 32. Pipette tip; 33. Swab tip; 331. Swab handle; 3311. Connecting section; 3312. Easy-breaking section; 3313. Groove; 332. Swab; 34. Tube body. Detailed implementation manners

[0030] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] 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 in conjunction with 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 the embodiments. Based on the embodiments of 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.

[0032] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so as to describe the embodiments of the present utility model here. 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 does not necessarily have to be 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.

[0033] Note that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] As Figure 1 and Figure 2 shown, the pipette of Example 1 includes: a tube body 34, a pipette tip 32, and a swab head 33. Among them, the tube body 34 has an upper opening; the pipette tip 32 is provided at the bottom of the tube body 34 and is in communication with the inside of the tube body 34; the swab head 33 includes a swab handle 331 and a swab 332. The swab handle 331, the pipette tip 32, and the tube body 34 are an integrally formed structure. The swab handle 331 has a connecting section 3311 connected to the tube body 34 and a breakable section 3312 located below the connecting section 3311, and the swab 332 is attached to the breakable section 3312.

[0035] Applying the technical solution of Example 1, during the experiment operation, the operator first uses the swab 332 of the pipette for smearing work, and then moves the pipette above the test tube. By making the breakable section 3312 abut against the mouth of the test tube, the breakable section 3312 and the connecting section 3311 break, and the breakable section 3312 with the swab 332 attached thereto drops into the liquid in the test tube. After a predetermined time, the operator then sucks the liquid in the test tube into the tube body 34 through the pipette tip 32, and then the operator can perform a conventional pipetting operation. Applying the technical solution of Example 1 can make it convenient for the operator to perform smearing work during pipetting and make it easy for the operator to perform experiment operations. More importantly, when producing this pipette, first produce the integrally formed tube body 34, swab handle 331, and pipette tip 32, and then attach the swab 332 to the swab handle 331. This simplifies the production steps of the pipette, thereby improving production efficiency and reducing production costs.

[0036] As Figure 1 and Figure 2 shown, in Example 1, a groove 3313 is provided on the swab handle 331, and the groove 3313 divides the swab handle 331 into a connecting section 3311 and a breakable section 3312. The above structure makes the swab handle 331 easy to break by reducing the wall thickness at the middle position of the swab handle 331. The above structure is easy to process and has low production costs while ensuring the breakable performance of the swab handle 331.

[0037] As Figure 1 and Figure 2As shown, in the first embodiment, the end of the connecting section 3311 is flush with the end of the pipette tip 32. The above structure avoids interference between the connecting section 3311 and the frangible section 3312 when breaking the frangible section 3312, preventing the situation where the frangible section 3312 is not easily broken. Of course, in other embodiments not shown in the figure, the end of the connecting section 3311 can also extend downward beyond the end of the pipette tip 32.

[0038] In the first embodiment, the swab 332 is any one of sponge, flocked, and cotton, and is set according to actual experimental needs.

[0039] As Figure 1 shown, in the first embodiment, the pipette further includes: an operating head 31, which is arranged at the upper opening of the tube body 34. The above structure makes it more convenient to aspirate liquid with the pipette. Preferably, in the first embodiment, the operating head 31 is an operating rubber head, and the operator can aspirate liquid by squeezing both sides of the operating rubber head.

[0040] In the first embodiment, scale lines are provided on the tube body 34. The above structure enables the operator to directly see whether the volume of the aspirated liquid meets the requirements.

[0041] The difference between the pipette in the second embodiment and that in the first embodiment lies only in the structure of the swab handle. Specifically, as Figure 3 shown, in the second embodiment, the outer diameter of the frangible section 3312 is smaller than that of the connecting section 3311. Specifically, when an external force acts on the swab handle, the swab handle is likely to break at the position where the outer diameter changes. The above structure is simple, easy to process, and has low cost.

[0042] The difference between the pipette in the third embodiment and that in the first embodiment lies only in the structure of the swab handle. Specifically, as Figure 4 shown, in the fourth embodiment, a blind hole extending upward is provided at the end of the swab handle 331. The part of the swab handle 331 with the blind hole forms the frangible section 3312, and the rest forms the connecting section 3311; the above structure makes the wall thickness of the frangible section 3312 thinner, and when an external force acts on the swab handle, it is easy to break at the position where the wall thickness changes. The above structure is simple, easy to process, and has low cost.

[0043] The difference between the pipette in the fourth embodiment and that in the first embodiment lies only in the material of the swab handle. Specifically, as Figure 5 shown, in the fifth embodiment, the connecting section 3311 and the frangible section 3312 are made of two different plastics, and the swab handle 331 is made by a two-material injection molding process. The two-material injection molding process enables the connecting section 3311 and the frangible section 3312 made of two different materials to melt into one body. However, in the above process, although the connecting section 3311 and the frangible section 3312 are melted into one body, the strength at the joint of the two materials is relatively low, and when an external force acts on the swab handle, it is easy to break at the joint.

[0044] The present application also provides a test tube, as Figures 6 to 9 shown. The embodiment of the test tube according to the present application includes a test tube body 10 and a pipette 30. Among them, the pipette 30 extends into the test tube body 10, and the pipette 30 is the above-mentioned pipette. Since the above-mentioned pipette has the advantages of simplified production steps and low production cost, the test tube with it also has the above advantages.

[0045] As Figures 6 to 8 shown, in this embodiment, the operating head 31 is arranged at the upper opening of the pipette tube body 34. The test tube further includes: a tube cap 20, which includes a connecting cap 21 connected to the upper opening of the test tube body 10 and a stop structure 22 arranged above the connecting cap 21. The pipette 30 passes through the connecting cap 21, the operating head 31 of the pipette 30 is located outside the test 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 avoidance openings 2 arranged oppositely on the stop structure 22.

[0046] Applying the technical solution of this embodiment, when it is necessary to aspirate liquid, the operator's thumb and index finger respectively extend into the two avoidance openings 2, and then squeeze the operating head 31 from both sides, and the aspiration of a predetermined amount of liquid can be realized. During the cultivation (or transportation) process, if there is a situation where an item topples over to the test tube (or other human situations), the stop structure 22 can stop the toppled item (or block a person), reduce the probability of accidentally touching the operating head 31, ensure the accuracy of the final liquid transfer, and ultimately ensure the accuracy of the test result.

[0047] As Figure 6 and Figure 8 shown, in this embodiment, the end of the operating 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 stop structure 22 have a relatively high height, thereby further protecting the operating head 31, reducing the probability of accidentally touching the operating head 31, and ensuring the accuracy of the final liquid transfer.

[0048] As Figures 6 to 8 shown, in this embodiment, the stop structure 22 includes a retaining wall surrounding the circumferential outside of the operating head 31. Among them, the retaining wall includes two first retaining pieces 221 arranged oppositely, and the two openings between the two first retaining pieces 221 form two avoidance openings 2. The above structure is simple and easy to process.

[0049] In this embodiment, the tube cap 20 is an integrally formed structure. The above structure is simple, easy to process, and has a low cost.

[0050] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0051] For the sake of convenience in description, spatial relative terms such as "above", "over", "on the upper surface", "upper", etc. may be used herein to describe the spatial positional relationship of one device or feature shown in the drawings 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 drawings. For example, if the device in the drawing is inverted, the 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 corresponding interpretations should be made for the spatial relative descriptions used herein.

[0052] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Without contrary statements, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0053] The foregoing is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modifications, equivalent replacements, improvements, 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 pipette, characterized in that: include: A tube body (34) having an upper opening; A liquid transfer head (32) is disposed at the bottom of the tube body (34) and is in communication with the tube body (34); The swab head (33) comprises a swab handle (331) and a swab (332); the swab handle (331), the pipetting head (32) and the tube body (34) are an integrally formed structure; the swab handle (331) comprises a connecting section (3311) connected to the tube body (34) and an easily breakable section (3312) located below the connecting section (3311); and the swab (332) is attached to the easily breakable section (3312).

2. The pipette according to claim 1, characterized in that The swab handle (331) is provided with a groove (3313). The groove (3313) separates the swab handle (331) into the connecting section (3311) and the easily breakable section (3312); or, The outer diameter of the easily breakable section (3312) is smaller than the outer diameter of the connecting section (3311); or, The end of the swab handle (331) is provided with a blind hole extending upward, the portion of the swab handle (331) having the blind hole forms the easily breakable section (3312), and the remaining portion forms the connecting section (3311); or, The connecting section (3311) and the easily breakable section (3312) are made of two different plastics, and the swab handle (331) is made by a double-material injection molding process.

3. The pipette according to claim 1, characterized in that The end of the connecting section (3311) is flush with the end of the pipetting head (32) or extends downward beyond the end of the pipetting head (32).

4. The pipette according to claim 1, characterized in that The swab (332) is any one of sponge, flocking and cotton.

5. The pipette according to claim 1, characterized in that: The pipette also includes: The operating head (31) is arranged at the upper opening of the tube body (34).

6. The pipette according to claim 1, characterized in that The tube body (34) is provided with scale lines.

7. A test tube comprising: test tube body(10); A pipette (30) extends into the test tube body (10), wherein the pipette (30) is the pipette according to any one of claims 1 to 5.

8. The test tube according to claim 7, characterized in that The pipette (30) further comprises: an operating head (31), wherein the operating head (31) is arranged at the upper opening of the pipette body (34), and the test tube further comprises: The tube cap (20) comprises a connecting cap (21) connected to the upper opening of the test tube body (10) and a stop structure (22) arranged 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 test 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.

9. The test tube according to claim 8, 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).

10. The test tube according to claim 8, characterized in that The stop structure (22) comprises a stop wall arranged on the circumferential outer side of the operating head (31), the stop wall comprising two first stop pieces (221) arranged opposite to each other, and two openings between the two first stop pieces (221) form the two avoidance openings (2).

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