CN220694267U

CN220694267U - Freezing tube

Info

Publication number: CN220694267U
Application number: CN202322359180.XU
Authority: CN
Inventors: 陈�峰; 朱晓健
Original assignee: Wuxi Naisi Life Technology Co ltd
Current assignee: Wuxi Naisi Life Technology Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-04-02
Anticipated expiration: 2033-08-31

Abstract

The utility model relates to the technical field of biological sample preservation devices, and discloses a freezing tube, which comprises: the pipe cover comprises a cover plate and a cover body extending backwards along the peripheral edge of the cover plate, and an inner peripheral wall of the cover body is provided with an inner thread; the sealing gasket is arranged on the rear end face of the cover plate, and the pipe cover and the sealing gasket are integrally formed through a double-color injection molding process so as to realize interconnection; the pipe body, be equipped with the external screw thread on the front end periphery wall of pipe body, the pipe body passes through the external screw thread with the internal screw thread meshing of tube cover links to each other, the front end of pipe body with sealed pad butt. The utility model provides a freezing pipe, which can reduce the problem that a sealing gasket is easy to fall off in the repeated freezing and thawing process, increase the sealing performance of the freezing pipe, prevent the leakage of liquid in the freezing pipe, and prolong the service life of the freezing pipe.

Description

Freezing tube

Technical Field

The utility model relates to the technical field of biological sample preservation devices, in particular to a freezing tube.

Background

The freezing tube is a biomedical consumable material, is often used in laboratories, research institutes, inspection stations and other institutions, and is mainly used for preserving and sorting precious samples. In the use process, the sample needs to be placed in a freezing tube and stored for a long time at the temperature of minus 20 ℃ to minus 80 ℃ and even needs to be placed in liquid nitrogen for freezing, so that the freezing tube needs to withstand repeated freezing tests.

In the repeated freezing and thawing process, the sealing performance of the freezing and storing tube is required to be higher due to expansion with heat and contraction with cold. In order to ensure the tightness between the pipe cover and the pipe body, a sealing gasket is generally stuck on the periphery of the end face of the pipe cover in the prior art, and when the pipe cover is screwed on the pipe body, the front end of the pipe body is abutted against the sealing gasket to realize the sealing function; however, due to repeated freezing and thawing, the sealing gasket is easy to fall off from the pipe cover, which may lead to screwing and clamping, and the sealing effect of the freezing pipe is also deteriorated, so that the pipe cover needs to be replaced frequently.

In the prior art, the sealing gasket protrudes into the pipe body, the sealing between the pipe body and the cover body is the interference fit between the inner wall surface of the pipe body and the side wall of the protruding part of the sealing gasket, so that serious anti-astringency feeling can occur in the screwing process, and the use hand feeling and experience are poor.

Disclosure of Invention

The purpose of the utility model is that: the problem that sealing gasket drops easily in repeated freezing and thawing process can be reduced in the pipe that freezes, increases the leakproofness of guaranteeing the pipe that freezes, prevents that the liquid in the pipe that freezes from revealing, improves the life of pipe that freezes.

In order to achieve the above object, the present utility model provides a cryopreservation tube comprising:

the pipe cover comprises a cover plate and a cover body extending backwards along the peripheral edge of the cover plate, and an inner peripheral wall of the cover body is provided with an inner thread;

the sealing gasket is connected to the rear end face of the cover plate through injection molding;

the pipe body, be equipped with the external screw thread on the front end periphery wall of pipe body, the pipe body passes through the external screw thread with the internal screw thread meshing of tube cover links to each other, the front end of pipe body with sealed pad butt, the interior perisporium of pipe body with between the tube cover, the interior perisporium of pipe body with between the sealed pad all contactless.

Further, the rear end face of the cover plate is provided with a boss, an annular space is reserved between the outer peripheral wall of the boss and the inner peripheral wall of the cover body, the front end of the pipe body is arranged in the annular space, and a lower counter bore which is matched with the cover screwing machine to realize automatic cover screwing is formed in the position, corresponding to the boss, of the front end face of the cover plate.

Further, the sealing gasket covers the rear end face of the cover plate and the boss, and the side wall of the sealing gasket is not in contact with the inner peripheral wall of the pipe body.

Furthermore, a connection convex part and a connection groove are respectively arranged between the rear end face of the cover plate and the front end face of the sealing gasket, and the connection convex part is in fit engagement with the connection groove.

Further, the tube cover and the sealing gasket are molded through a double-shot molding process so as to realize interconnection.

Further, the sealing gasket is made of TPE or TPU.

Further, an identification piece is arranged in the lower counter bore.

Further, the pipe body comprises a pipe barrel and a seat body, the pipe barrel is hollow with an opening at the front end, the seat body comprises a base and at least two identification walls arranged at intervals along the periphery of the front end of the base, the base is connected with the bottom of the pipe barrel, and the at least two identification walls are connected with the periphery of the pipe barrel;

the cylinder body and the seat body are integrally formed through a double-color injection molding process so as to realize interconnection.

Still further, two recognition walls are provided, wherein one recognition wall is provided with capacity scales on the periphery, the other recognition wall is provided with bar codes on the periphery, and the capacity scales and the bar codes are formed on the recognition wall through laser engraving process.

Further, the outer peripheral wall of the base is provided with a plurality of reinforcing ribs at intervals along the circumferential direction.

Compared with the prior art, the freezing tube has the beneficial effects that: the pipe cover and the sealing gasket are molded through a double-color injection molding process, so that the fitting degree of the pipe cover and the sealing gasket is increased, the possibility that the sealing gasket falls off from the pipe cover is reduced, the sealing gasket is not adhered to the pipe cover through glue or other intermediate mediums, the problem that the adhesion capacity of the intermediate mediums is invalid in the repeated freezing and thawing process is avoided, the sealing property of the freezing and preserving pipe is ensured, and the service life of the freezing and preserving pipe is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of a freezing tube according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a cryopreservation tube according to an embodiment of the utility model;

FIG. 3 is a top cross-sectional view of a tube cap according to an embodiment of the present utility model;

in the drawing the view of the figure,

1. a tube cover; 11. a cover plate; 111. a boss; 112. a lower counter bore; 113. a connection protrusion; 12. a cover body;

2. a sealing gasket; 21. a connection groove;

3. a tube body; 31. a tube; 32. a base; 321. identifying a wall; 322. reinforcing ribs; 323. and (5) a base.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "transverse", "longitudinal", and the like are used for convenience in describing the present utility model and simplifying the description only, and are not intended to limit the present utility model to the specific orientations or configurations and operations of the indicated devices, elements or components, and thus should not be construed as limiting the present utility model. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, the terms "provided," "disposed," "connected," and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or of unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The technical scheme of the utility model is further described below with reference to the embodiment and the attached drawings.

As shown in fig. 1, a freezing tube according to a preferred embodiment of the present utility model includes: a tube cover 1, a sealing gasket 2 and a tube body 3; the pipe cover 1 comprises a cover plate 11 and a cover body 12, wherein the cover body 12 extends backwards along the peripheral edge of the cover plate 11, and an inner peripheral wall of the cover body 12 is provided with an inner thread; the sealing gasket 2 is injection molded on the rear end face of the pipe cover 1; the front end periphery wall of the pipe body 3 is provided with external threads, the pipe body 3 is meshed and connected with the internal threads of the pipe cover 1 through the external threads, the front end of the pipe body 3 is abutted with the sealing gasket 2, and no contact exists between the inner periphery wall of the pipe body 3 and the pipe cover 1 and between the inner periphery wall of the pipe body 3 and the sealing gasket 2.

In the technical scheme, the pipe cover 1 and the sealing gasket 2 are mutually connected through injection molding, so that the fitting degree of the pipe cover 1 and the sealing gasket 2 is increased, when the front end of the pipe body 3 is in butt sealing with the sealing gasket 2, the sealing gasket 2 and the pipe cover 1 do not have relative rotation tendency, the butt sealing position of the pipe body 3 and the sealing gasket 2 is only the front end of the pipe body 3, the side wall is not contacted and interfered, the possible astringency in the screwing process is reduced, the possibility that the sealing gasket 2 falls off from the pipe cover 1 is reduced, and the tightness is ensured;

preferably, the rear end face of the cover plate 11 is provided with a boss 111, an annular space is reserved between the outer peripheral wall of the boss 111 and the inner peripheral wall of the cover body 12, the front end of the pipe body 3 is arranged in the annular space, and a lower counter bore 112 for being matched with a cover screwing machine to realize automatic cover screwing is arranged at the position, corresponding to the boss 111, of the front end face of the cover plate 11. The rear end face of the cover plate 11 is provided with a boss 111, and the boss 111 is provided with a hole opening position of a lower counter bore 112; an annular gap is reserved between the outer peripheral wall of the boss 111 and the inner peripheral wall of the cover body 12, so that the boss 111 and the pipe body 3 are prevented from directly interfering with each other, and screwing operation is prevented from being influenced; the front end face of the boss 111 is provided with a lower counter bore 112 for being matched with a cap screwing machine to realize automatic cap screwing, and the shape of the lower counter bore 112 is preferably a regular polygonal star shape.

More preferably, the gasket 2 covers the rear end surface of the cover plate 11 and the boss 111, and the side wall of the gasket 2 is not in contact with the inner peripheral wall of the pipe body 3. Increasing the coverage area of the sealing gasket 2 can improve the strength of the pipe cover 1 and the structural integrity of the pipe cover 1, reduce the possible astringency in the screwing process, and influence the screwing hand feeling and the sealing effect.

More preferably, a connection protrusion 113 and a connection groove 21 are respectively provided between the rear end surface of the cover plate 11 and the front end surface of the gasket 2, and the connection protrusion 113 is engaged with the connection groove 21. Based on the injection molding of the sealing gasket 2 and the pipe cover 1 by using different materials, the contact area of the pipe cover 1 and the sealing gasket 2 during injection molding is increased by arranging the connecting convex part 113 on the rear end surface of the cover plate 11, so that the fitting degree of the pipe cover 1 and the sealing gasket 2 is ensured.

Preferably, the tube cap 1 and the gasket 2 are integrally formed through a two-shot molding process to achieve the interconnection. The fitting degree of the pipe cover 1 and the sealing gasket 2 can be ensured through double-shot molding integrated forming.

Preferably, the gasket is made of TPE or TPU. The sealing pad can be made of soft elastic materials such as silica gel, rubber and the like.

More preferably, an identification tab is disposed within the lower counterbore 112. The identification piece is arranged in the lower counter bore 112, so that the identification device can conveniently read the information of the freezing storage tube from the front.

Preferably, the outer peripheral wall of the tube cap 1 is provided with anti-slip patterns. The anti-skid patterns are arranged on the peripheral wall of the pipe cover 1 to play a role in increasing friction force, so that the screwing operation is facilitated.

Preferably, the tube body 3 comprises a tube 31 and a base body 32, the tube 31 is hollow with an opening at the front end, the base body 32 comprises a base 323 and at least two identification walls 321 which are arranged at intervals along the periphery of the front end of the base 323, the base 323 is connected with the bottom of the tube 31, and the at least two identification walls 321 are connected with the periphery of the tube 31;

the tube 31 and the housing 32 are formed by a two-shot injection molding process to achieve interconnection. The identification wall 321 is arranged on the side wall of the tube body 3, and the identification device can read the information of the freezing tube from the side wall of the freezing tube.

More preferably, two identification walls 321 are provided, wherein the periphery of one identification wall 321 is provided with a capacity scale, the periphery of the other identification wall 321 is provided with a bar code, and the capacity scale and the bar code are formed on the identification wall 321 through a laser etching process. The information on the identification wall 321 is processed by adopting a laser etching process, and the surface of the tube body 3 is easily covered by moisture or small water drops because the freezing and storing tube needs repeated freezing and thawing, so that compared with the traditional modes of ink jet, screen printing and the like, the information on the identification wall 321 is processed by adopting the laser etching process, and the information can be prevented from being erased or scratched.

More preferably, the rear end face of the base 32 is provided with a recognition surface, and the two-dimensional code is formed on the recognition surface through a laser etching process. An identification surface is arranged on the bottom surface of the tube body 3, and the identification device can read the information of the freezing tube from the bottom wall of the freezing tube.

More preferably, the outer peripheral wall of the base 323 is provided with a plurality of reinforcing ribs 322 at intervals in the circumferential direction. The outer peripheral wall of the base 323 is provided with a plurality of reinforcing ribs 322 at intervals along the circumferential direction, so that the strength of the freezing storage tube is structurally increased to prevent cracking of the tube body 3 caused by thermal expansion and cold contraction in the repeated freezing and thawing process of the freezing storage tube.

The working process of the utility model is as follows: the method comprises the steps of accommodating samples such as cells, strains and the like into a tube body 3, placing a tube cover 1 on the upper end face of the tube body 3 by using a cover screwing machine, screwing the tube cover 1 until the front end face of the tube body 3 abuts against an extrusion sealing gasket 2 to finish sealing, and after sealing, sending the frozen tube to a condition of minus 20 ℃ to minus 80 ℃ for long-term preservation, and even needing to be placed in liquid nitrogen for freezing.

In summary, the embodiment of the utility model provides a freezing pipe, wherein a pipe cover and a sealing gasket are integrally formed through double-shot molding, so that the fitting degree of the pipe cover and the sealing gasket is increased, the possibility that the sealing gasket falls off from the pipe cover is reduced, and the pipe cover is provided with a plurality of connecting bosses to increase the contact area between the pipe cover and the sealing gasket during injection molding and increase the reliability between the pipe cover and the sealing gasket; and the freezing tube is respectively provided with the identification sheet, the identification wall and the identification surface at the front end, the side wall and the rear end, and the identification device can better read the information of the freezing tube from three directions, so that the information of the freezing tube can be conveniently tracked.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. A cryopreservation tube, comprising:

the pipe body, be equipped with the external screw thread on the front end periphery wall of pipe body, the pipe body passes through the external screw thread with the internal screw thread meshing of tube cover links to each other, the front end of pipe body with sealing pad butt, the interior perisporium of pipe body with between the tube cover, the interior perisporium of pipe with between the sealing pad all do not contact.

2. The cryopreservation tube of claim 1, wherein: the rear end face of the cover plate is provided with a boss, an annular space is reserved between the outer peripheral wall of the boss and the inner peripheral wall of the cover body, the front end of the pipe body is arranged in the annular space, and the front end face of the cover plate is provided with a lower counter bore corresponding to the boss and used for being matched with a cover screwing machine to realize automatic cover screwing.

3. The cryopreservation tube of claim 2, wherein: the sealing gasket covers the rear end face of the cover plate and the boss, and the side wall of the sealing gasket is not contacted with the inner peripheral wall of the pipe body.

4. A cryopreservation tube according to claim 3, wherein: and a connecting convex part and a connecting groove are respectively arranged between the rear end face of the cover plate and the front end face of the sealing gasket, and the connecting convex part is in fit and scarf joint with the connecting groove.

5. The cryopreservation tube of claim 1, wherein: the pipe cover and the sealing gasket are molded through a double-shot molding process so as to realize interconnection.

6. The cryopreservation tube of claim 1, wherein: the sealing gasket is made of TPE or TPU.

7. The cryopreservation tube of claim 2, wherein: an identification piece is arranged in the lower counter bore.

8. The cryopreservation tube of any one of claims 1-7 wherein: the pipe body comprises a pipe barrel and a seat body, the pipe barrel is hollow with an opening at the front end, the seat body comprises a base and at least two identification walls arranged at intervals along the periphery of the front end of the base, the base is connected with the bottom of the pipe barrel, and at least two identification walls are connected with the periphery of the pipe barrel;

the pipe barrel and the seat body are molded through a double-shot molding process so as to realize interconnection.

9. The cryopreservation tube of claim 8 wherein: the laser engraving machine is provided with two recognition walls, wherein the periphery of one recognition wall is provided with capacity scales, the periphery of the other recognition wall is provided with a bar code, and the capacity scales and the bar code are formed in the recognition wall through a laser engraving process.

10. The cryopreservation tube of claim 8 wherein: a plurality of reinforcing ribs are arranged on the peripheral wall of the base at intervals.