CN223953222U

CN223953222U - A sealing gasket, a sealing cap, and a centrifuge tube

Info

Publication number: CN223953222U
Application number: CN202422779817.5U
Authority: CN
Inventors: 崔玉花; 张少玉
Original assignee: Tianjin Sanhao Technology Co ltd
Current assignee: Tianjin Sanhao Technology Co ltd
Priority date: 2024-11-14
Filing date: 2024-11-14
Publication date: 2026-02-27
Anticipated expiration: 2034-11-14

Abstract

The utility model provides a sealing gasket, a sealing cover and a centrifuge tube, which belong to the technical field of experimental equipment, wherein the sealing gasket comprises a wall body, the wall body is connected end to end, a peripheral sealing structure is formed around the wall body, the top of the peripheral sealing structure is provided with an opening, the bottom of the peripheral sealing structure is sealed, a slit capable of being opened and closed is formed in the bottom of the peripheral sealing structure, bosses used for tightly closing the slit are arranged on two sides of the slit, and the bosses are connected with the outer wall of the wall body. According to the sealing gasket disclosed by the utility model, the liquid adding pipe is inserted into the slit when the sealing gasket is used, the slit is closed when the sealing gasket is not used, the extraction liquid can be added after the vibration or dispersion process of the centrifuge tube is finished without opening the cover of the centrifuge tube, the experimental steps are reduced, and the sealing gasket is convenient to use.

Description

Sealing gasket, sealing cover and centrifuge tube

Technical Field

The utility model belongs to the technical field of experimental equipment, and particularly relates to a sealing gasket, a sealing cover and a centrifuge tube.

Background

Before laboratory tests on molecular biology and serology of blood or tissue samples, etc., it is necessary to centrifuge the sample to be tested. In the field of bioscience, in particular biochemistry and molecular biology research, there has been a very wide range of applications, each biochemical and molecular biology laboratory being equipped with various forms of centrifuges.

Centrifugation techniques are mainly used in the separation and preparation of various biological samples. Specifically, the biological sample suspension is placed in a centrifuge tube rotating at a high speed, and suspended tiny particles (such as organelles, precipitation of biological macromolecules and the like) are settled at a certain speed under the action of huge centrifugal force, so that the suspended tiny particles are separated from the solution. Centrifugation of samples has become an integral part of molecular biology and serological diagnostics, and the use of centrifuge tubes has also become one of the consumables commonly used in the experimental process. In order to improve the working efficiency, the prior art also has a machine for automatically operating the step, but the processes of opening the cover and screwing the cover have high failure rate, so that samples splash or the machine is stopped, and the use effect is poor.

Disclosure of utility model

In order to solve the problems in the prior art, a sealing gasket, a sealing cover and a centrifuge tube are provided.

The technical scheme for solving the technical problems is as follows:

firstly, a sealing gasket is provided, which comprises an elastic wall body, wherein the wall body is connected end to end, a peripheral sealing structure is formed around the wall body, the top of the peripheral sealing structure is opened, the bottom of the peripheral sealing structure is sealed, a slit capable of being opened and closed is formed in the bottom of the peripheral sealing structure, at least one group of bosses used for tightly closing the slit are arranged on two sides of the slit, and the bosses are connected with the outer wall of the wall body.

Preferably, a concave accommodating cavity is formed in the wall body, the slit is communicated with the accommodating cavity, the top opening of the wall body is circular, the wall body is inwards folded from top to bottom to form a closing-in structure with a large end at the upper part and a small end at the lower part, and an inclined surface is formed on the wall body.

Preferably, the top of the wall body is connected with a fixing layer which extends outwards to wrap the wall body.

Preferably, the inner side of the boss is connected to the outer wall of the wall body, and a space is reserved between the outer edge of the boss and the outer edge of the fixing layer.

Preferably, the boss is triangular structure, the hypotenuse of boss and the inclined plane fixed connection of wall, and the bottom surface of boss and the bottom parallel and level setting of wall.

Secondly, a sealing cover with a sealing gasket is provided, the sealing gasket is arranged in the sealing cover in an adapting mode, a through hole is formed in the top of the sealing cover and communicated with the accommodating cavity, and an inserting space is formed between the outer edge of the boss and the inner wall of the sealing cover.

Preferably, the sealing cover comprises a cover plate part and a connecting part extending downwards from the outer wall of the cover plate part, wherein the middle part of the cover plate part is provided with a through hole, and the fixing layer of the sealing gasket is connected with the bottom of the cover plate part.

Preferably, the outer wall of the fixing layer of the sealing gasket is pressed against the inner wall of the connecting part.

Finally, a centrifuging tube with sealed lid is proposed, centrifuging tube top is equipped with sealed lid, and the centrifuging tube top can insert and insert in establishing the space, and the centrifuging tube is connected back boss lateral wall with sealed lid can jack-up to the centrifuging tube inner wall.

Preferably, the top of the centrifuge tube is held against the bottom of the gasket securing layer.

Compared with the prior art, the technical scheme has the following advantages or beneficial effects:

1. according to the sealing gasket disclosed by the utility model, the liquid adding pipe is inserted into the slit when the sealing gasket is used, the slit is closed when the sealing gasket is not used, the extraction liquid can be added after the vibration or dispersion process of the centrifuge tube is finished without opening the cover of the centrifuge tube, the experimental steps are reduced, and the sealing gasket is convenient to use.

2. The utility model increases the boss which makes the slit close and the inserting space formed between the boss and the sealing cover on two sides of the slit, which not only can guide and position the centrifuge tube and facilitate the cooperation of the centrifuge tube and the sealing cover, but also can squeeze the slit when the liquid adding tube is inserted into the boss because of the elasticity, and the boss pushes the inner wall of the centrifuge tube to give the slit close force when the slit is closed, so that the slit is close and no liquid leakage occurs.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

Fig. 1 is a bottom view of the gasket.

Fig. 2 is a top view of the gasket.

Fig. 3 is a schematic view of the seal cap with the gasket removed.

Fig. 4 is a schematic view of the seal cap with gasket.

FIG. 5 is a schematic view of a centrifuge tube employing the seal cap.

FIG. 6 is an exploded view of a centrifuge tube using the seal cap.

Fig. 7 is a schematic view of a gasket slit open state.

Fig. 8 is a schematic view of a gasket in a second embodiment.

Fig. 9 is a schematic view of a gasket in a third embodiment.

Reference numerals illustrate:

1. The sealing cover comprises a sealing cover body, a connecting part, a cover plate part, a through hole, a sealing gasket, a fixing layer, a boss, a holding cavity, a holding slot, a wall body, a centrifugal tube, a liquid adding tube and a liquid adding tube.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present utility model. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiment one:

Referring to fig. 1, 2 and 7, this embodiment proposes a gasket 2 made of elastic material such as rubber, comprising a wall 25, the wall 25 being connected end to end, and surrounding a peripheral sealing structure, the peripheral sealing structure having a top opening and a concave receiving cavity 23 formed therein, the peripheral sealing structure being closed at the bottom and having a slit 24 capable of opening and closing, the slit 24 being in communication with the receiving cavity 23, the slit 24 being capable of opening when the foreign object is squeezed and automatically closing due to elasticity of the material when the foreign object is not squeezed, a boss 22 for tightly closing the slit 24 being provided at both sides of the slit 24, the boss 22 being connected to an outer wall of the wall 25, the boss 22 being in contact with an inner wall by mounting the gasket 2 at a bottleneck of the device, the slit 24 being capable of further improving a sealing degree by the pressing force of the boss 22 against both side walls of the slit 24 when the slit 24 is closed, and being capable of realizing communication on both sides of the gasket 2 by stretching the device such as 4 into the slit 24 when the slit 24 is required to be opened. In this embodiment, the top opening of the wall 25 is circular, the bottom of the wall 25 is contracted inwards to form a slit 24, and the slit 24 is linear when closed, that is, the wall 25 has a structure with a circular top, a linear bottom, and a lofted structure between the circular shape and the linear line.

The inner side of the boss 22 is connected to the outer wall of the wall body 25, and a gap exists between the outer edge of the boss 22 and the fixing layer 21. Further, the wall 25, the boss 22 and the fixing layer 21 are integrally formed.

Embodiment two:

Referring to fig. 8, in the present embodiment, a gasket is provided, which includes an elastic wall 25, the wall 25 is connected end to end, the axial sealing structure is cylindrical around a circumferential sealing structure, a through slit 24 capable of opening and closing is formed at the bottom, the slit 24 can be opened when the foreign objects are extruded, the slit 24 is automatically closed due to elasticity of materials when the foreign objects are not extruded, thereby separating liquids at two sides of the wall 25, a set of bosses 22 for tightly closing the slit 24 are disposed at two sides of the slit 24, the bosses 22 are connected with an outer wall at the bottom of the wall 25, the bosses 22 are triangular, and a gap exists between the outer side of the boss 22 and an outer edge of the wall 25.

Embodiment III:

Referring to fig. 9, in this embodiment, other portions are the same as those of the embodiment, except that two sets of bosses 22 are provided, each set includes two bosses 22 symmetrically disposed on two sides of the slit, the two sets of bosses 22 are disposed in parallel, and the two sets of bosses 22 are adopted to enable the slit 24 to be stressed more and enable the tightening effect to be better.

Embodiment four:

Referring to fig. 3-4, in order to facilitate the use of the gasket 2, the present embodiment provides a sealing cover 1 using the gasket 2, where the sealing cover 1 includes a cover plate 12 and a connecting portion 11 extending downward from an outer wall of the cover plate 12, a through hole 13 is formed in a middle portion of the cover plate 12, the through hole 13 is communicated with a receiving cavity 23, a bottom portion of the cover plate 12 is connected with the gasket 2, and a fixing layer 21 of the gasket 2 is tightly attached to the bottom portion of the cover plate 12.

In order to facilitate the connection of the sealing gasket 2 and the sealing cover 1, a fixing layer 21 which extends outwards and wraps the wall body 25 is connected to the top of the wall body 25. The outer wall of the fixed layer 21 of the sealing gasket 2 is tightly propped against the inner wall of the connecting part 11, compared with the sealing gasket 2 and the sealing cover 1 which are not fastened, the sealing gasket 2 is clamped on the inner side of the sealing cover 1 through the fixed layer 21, and only the sealing cover 1 is required to be detached when the sealing cover 1 is detached, the sealing gasket 2 can be continuously fixed on the sealing cover 1, and the installation and the detachment of a user are facilitated.

Fifth embodiment:

Referring to fig. 5-6, the embodiment provides a centrifuge tube 3 with the sealing cover 1, which can be matched and connected with an internal thread of the sealing cover 1, wherein the outer wall of a boss 22 can be propped against the inner wall of the centrifuge tube 3 after the centrifuge tube 3 and the sealing cover 1 are screwed up, so that the boss 22 can be propped against the inner wall of the centrifuge tube 3 to realize further propping up when the slit 24 is closed, and the slit 24 can be opened by means of elasticity of the boss 22 when the liquid adding pipe 4 is inserted into the slit 24. The centrifuge tube and the sealing cover are connected through threads, namely, the outer wall of the top of the centrifuge tube 3 is provided with external threads, and the inner wall of the connecting part 11 is provided with internal threads.

The thickness of the centrifuge tube 3 is the same as the distance from the outer side of the fixing layer 21 of the sealing gasket 2 to the outer edge of the boss 22, so that the boss 22 can just contact and tightly prop up the inner wall of the centrifuge tube 3 when the sealing cover 1 and the centrifuge tube 3 are screwed down.

When the centrifugal tube centrifuge tube liquid filling device is used, the sealing gasket 2 is only required to be padded into the sealing cover 1, the sealing cover 1 is screwed to the opening end of the centrifuge tube 3, after centrifugation is completed, the sealing gasket 4 sequentially penetrates through the through hole 13 and the accommodating cavity 23, and penetrates into the centrifuge tube 3 through the slit 24 to carry out liquid filling operation, after liquid filling is completed, the slit 24 is closed again under the elastic action of the boss 22 to form a closed space, so that centrifugal liquid in the centrifuge tube 3 cannot splash out.

While the foregoing description of the embodiments of the present utility model has been presented with reference to the drawings, it is not intended to limit the scope of the utility model, but rather, it is apparent that various modifications or variations can be made by those skilled in the art without the need for inventive work on the basis of the technical solutions of the present utility model.

Claims

1. A sealing gasket is characterized by comprising an elastic wall body (25), wherein the wall body (25) is connected end to end, a peripheral sealing structure is formed around the wall body, the top of the peripheral sealing structure is open, the bottom of the peripheral sealing structure is sealed, a slit (24) capable of being opened and closed is formed in the bottom of the peripheral sealing structure, at least one group of bosses (22) for tightly closing the slit (24) are arranged on two sides of the slit (24), and the bosses (22) are connected with the outer wall of the wall body (25).

2. A gasket according to claim 1, wherein a concave accommodating cavity (23) is formed in the wall body (25), the slit (24) is communicated with the accommodating cavity (23), the top opening of the wall body (25) is circular, the wall body (25) is folded inwards from top to bottom to form a closing-in structure with a large end being up and a small end being down, and an inclined plane is formed on the wall body (25).

3. A gasket according to claim 2, wherein the top of the wall (25) is connected to a securing layer (21) which extends outwardly around the wall (25).

4. A gasket according to claim 3, wherein the inner side of the boss (22) is connected to the outer wall of the wall body (25), and a space is provided between the outer edge of the boss (22) and the outer edge of the fixing layer (21).

5. A gasket according to claim 2, wherein the boss (22) has a triangular structure, the sloping side of the boss (22) is fixedly connected with the sloping side of the wall body (25), and the bottom surface of the boss (22) is flush with the bottom of the wall body (25).

6. A sealing cover is characterized by comprising a sealing gasket according to any one of claims 1-4, wherein the sealing gasket (2) is arranged in the sealing cover (1) in an adapting mode, a through hole (13) is formed in the top of the sealing cover (1), the through hole (13) is communicated with a containing cavity (23), and an inserting space is formed between the outer edge of a boss (22) and the inner wall of the sealing cover (1).

7. The sealing cover according to claim 6, wherein the sealing cover comprises a cover plate part (12) and a connecting part (11) extending downwards from the outer wall of the cover plate part (12), a through hole (13) is formed in the middle of the cover plate part (12), and a fixing layer (21) of the sealing gasket (2) is connected with the bottom of the cover plate part (12).

8. A sealing cap according to claim 6, characterized in that the outer wall of the fixing layer (21) of the sealing gasket (2) is pressed against the inner wall of the connecting part (11).

9. A centrifuge tube is characterized in that the sealing cover in any one of claims 6-8 is arranged at the top of the centrifuge tube (3), the top of the centrifuge tube (3) can be inserted into an insertion space, and the outer side wall of a boss (22) can be tightly propped against the inner wall of the centrifuge tube (3) after the centrifuge tube (3) is connected with the sealing cover (1).

10. A centrifuge tube according to claim 9, characterized in that the top of the centrifuge tube (3) is pressed against the bottom of the fixing layer (21) of the gasket (2) to form a seal.