Telescopic centrifugal tube

Abstract

The utility model discloses a telescopic centrifugal tube and relates to the technical field of experimental instruments. The telescopic pipe comprises a pipe body, the pipe body comprises a fixed section and a telescopic section, one end of the fixed section is open, the other end of the fixed section is closed, the telescopic section is integrally connected to the open end of the fixed section, an inner cavity of the telescopic section is communicated with an inner cavity of the fixed section, and the telescopic section is an elastic pipe formed by connecting foldable threaded pieces in the folding telescopic direction; a threaded groove is formed in the side wall of the cover body, and the telescopic section is connected into the threaded groove in a threaded mode. According to the telescopic centrifugal tube, the length can be adjusted, so that the needle tube can penetrate into the bottom of the centrifugal tube to obtain a sample at the bottom of the centrifugal tube, and meanwhile, the cover body can be in threaded connection with the telescopic section and is convenient to disassemble. The device is simple in structure, convenient to operate and suitable for batch production.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental instruments, and more specifically to a telescopic centrifuge tube. Background Art

[0002] A common consumable in chemical drug preparation laboratories is a centrifuge tube, one of which is a plastic centrifuge tube with a lid, which can prevent the sample from leaking out when in use. In actual use, centrifuge tubes with larger space volumes are usually used. Existing centrifuge tubes are divided into microcentrifuge tubes, ordinary centrifuge tubes and large centrifuge tubes. Each centrifuge tube has different specifications, and the needle tubes used for sampling also have different specifications. The needle tubes and centrifuge tubes cannot be completely matched during sampling. When the centrifuge tube specifications used do not have a needle tube that completely matches it, if a slightly larger needle tube is used for sampling, it is easy to collide with the inner wall of the centrifuge tube due to the larger diameter of the needle tube, contaminate the sample, and cause inaccurate data. If a slightly smaller needle tube is used for sampling, the needle tube has a smaller diameter and can smoothly enter the centrifuge tube, but due to its insufficient length, the needle tube cannot contact the bottom of the centrifuge tube, resulting in the inability to completely suck out the sample in the centrifuge tube. Utility Model Content

[0003] In view of this, the utility model aims to provide a retractable centrifuge tube with a simple structure and easy operation to solve the technical problem in the prior art that the centrifuge tube and the needle tube specifications do not match and the sample in the centrifuge tube cannot be completely removed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A telescopic centrifuge tube, comprising:

[0006] A tube body, the tube body comprising a fixed section and a telescopic section, the fixed section having an open end and a closed end, the telescopic section being integrally connected to the open end of the fixed section and the inner cavities thereof being interconnected, the telescopic section being an elastic tube formed by foldable threaded sheets connected along a folding and telescoping direction;

[0007] The cover body has a thread groove inside the side wall of the cover body, and the telescopic section is threadedly connected in the thread groove.

[0008] The beneficial effects that can be achieved by the utility model are as follows: the telescopic section of the tube body can be folded to make the length of the tube body adjustable, and at the same time the telescopic section can be threadedly connected with the threaded groove on the cover body to realize a detachable connection between the cover body and the tube body, without the need to additionally set other connecting structures on the tube body part to connect with the cover body.

[0009] Furthermore, a scale is provided on the outer side wall of the fixed section.

[0010] Furthermore, the foldable thread sheet has the same pitch as the thread groove.

[0011] Furthermore, the foldable spiral sheet includes a first spiral sheet and a second spiral sheet that are integrally connected, and the connection between the first spiral sheet and the second spiral sheet is inclined in a direction away from the axis thereof.

[0012] Furthermore, the first spiral sheet and the second spiral sheet are both made of soft plastic.

[0013] Through the above technical solutions, it can be known that compared with the prior art, the utility model discloses a telescopic centrifuge tube, the length of which can be adjusted, so that the needle tube can penetrate into the bottom of the centrifuge tube to obtain the sample at the bottom of the centrifuge tube, and the cover body can be threadedly connected with the telescopic section for easy disassembly. The utility model has a simple structure, is easy to operate, and is suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0015] Figure 1 The utility model provides a schematic diagram of the structure of a telescopic centrifuge tube in a stretched state.

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A.

[0017] Figure 3 The utility model provides a schematic diagram of the structure of a telescopic centrifuge tube in a compressed state.

[0018] Figure 4 The utility model is a schematic diagram of the structure of a retractable centrifuge tube for sampling.

[0019] In the figure: 1, tube body, 11, fixed section, 12, telescopic section, 121, first spiral sheet, 122, second spiral sheet, 2, cover body, 3, needle tube. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-Figure 4 The utility model embodiment discloses a telescopic centrifuge tube, comprising:

[0024] The tube body 1 comprises a fixed section 11 and a telescopic section 12. The fixed section 11 is open at one end and closed at the other end. The telescopic section 12 is integrally connected to the open end of the fixed section 11 and the inner cavities thereof are interconnected. The telescopic section 12 is an elastic tube formed by foldable threaded sheets connected along the folding and telescoping direction.

[0025] The cover body 2 has a thread groove inside its side wall, and the telescopic section 12 is threadedly connected in the thread groove.

[0026] The utility model can achieve the beneficial effects that: the telescopic section 12 can be folded so that the length of the tube body 1 can be adjusted, and at the same time, the cooperation between the cover body 2 and the telescopic section 12 realizes a detachable connection between the cover body 2 and the tube body 1.

[0027] In a specific embodiment, a scale is provided on the outer side wall of the fixing section 11 .

[0028] In a specific embodiment, the foldable thread sheet has the same pitch as the thread groove.

[0029] In a specific embodiment, the foldable spiral sheet includes a first spiral sheet 121 and a second spiral sheet 122 that are integrally connected, and the connection between the first spiral sheet 121 and the second spiral sheet 122 is inclined in a direction away from the axis thereof.

[0030] In a specific embodiment, the first spiral piece 121 and the second spiral piece 122 are preferably made of soft plastic, and the fixed section 11 can be made of a material with the same hardness as or greater than that of the telescopic section.

[0031] When sampling, the centrifuge tube of the present invention is used to rotate the cover body 2 to separate it from the tube body 1, and sampling can be performed. When it is necessary to take the sample solution at the bottom of the tube body 1, the telescopic section 12 is compressed and folded, and the needle tube 3 can penetrate into the bottom of the centrifuge tube to obtain the bottom sample solution.

[0032] The telescopic section 12 of the tube body 1 of the utility model can be used to change the length of the tube body 1 and can be connected with the cover body 2 by threads, so the structure is simple and the use is more convenient.

[0033] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A telescopic centrifuge tube, characterized in that: include: A tube body (1), the tube body (1) comprising a fixed section (11) and a telescopic section (12), the fixed section (11) being open at one end and closed at the other end, the telescopic section (12) being integrally connected to the open end of the fixed section (11) and the inner cavities thereof being interconnected, the telescopic section (12) being an elastic tube formed by foldable threaded sheets connected along a folding and telescoping direction; A cover body (2), wherein a thread groove is provided inside a side wall of the cover body (2), and the telescopic section (12) is threadedly connected in the thread groove.

2. A telescopic centrifuge tube according to claim 1, characterized in that: The outer side wall of the fixed section (11) is provided with scales.

3. A telescopic centrifuge tube according to claim 1, characterized in that: The foldable thread sheet has the same pitch as the thread groove.

4. A telescopic centrifuge tube according to any one of claims 1 to 3, characterized in that: The foldable spiral sheet comprises a first spiral sheet (121) and a second spiral sheet (122) which are integrally connected, and the connection between the first spiral sheet (121) and the second spiral sheet (122) is inclined in a direction away from the axis thereof.

5. A telescopic centrifuge tube according to claim 4, characterized in that: The first spiral sheet (121) and the second spiral sheet (122) are both made of soft plastic.

Images