Novel centrifugal tube

Abstract

The utility model discloses a novel centrifugal tube and relates to the technical field of experimental equipment. The novel centrifugal tube with the homogenizing function comprises a tube body, a tube cover is arranged at the upper end of the tube body, the interior of the tube cover is of a hollow structure, and a push-pull shaft is slidably connected to the tube cover; a sealing rod with the same diameter as the interior of the pipe body is fixedly mounted on the pipe cover; a sealing mechanism used for sealing the pipe body is arranged on the pipe cover and comprises an air compression plate, and the air compression plate is connected into the pipe cover in a sliding mode and fixedly connected with the push-pull shaft. According to the novel centrifugal tube with the homogenizing function, air in the sealing air bag flows back to the interior of the tube cover by pulling the push-pull rod, so that the direct sealing effect of the tube body and the tube cover is eliminated, the tube cover is more convenient and faster to seal and open the tube body, and the phenomenon that a sample in the tube body spills out is avoided.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a novel centrifuge tube. Background Technology

[0002] Centrifuge tubes are commonly used experimental equipment in biological laboratories and can be used for experiments such as cell centrifugation, cell separation, and reagent preparation.

[0003] Most existing centrifuge tubes are sealed by inserting a flexible sealing head into the tube. This method makes it easy for the tube to shake when opened later if too much force is applied, causing the sample inside the tube to spill out. It also makes the tube very difficult to open. Therefore, a new type of centrifuge tube is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a new type of centrifuge tube that can solve the problem that most existing centrifuge tubes are usually sealed by inserting a flexible sealing head into the tube to complete the sealing. This method makes it easy for the tube to shake when it is opened later if too much force is applied, thus causing the sample inside the tube to spill out. At the same time, it makes the tube extremely difficult to open.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel centrifuge tube, comprising a tube body, wherein a tube cap is provided at the upper end of the tube body, the tube cap having a hollow internal structure, and a push-pull shaft is slidably connected to the tube cap;

[0006] A sealing rod with the same diameter as the inside of the pipe is fixedly installed on the pipe cap;

[0007] The pipe cap is equipped with a sealing mechanism to seal the pipe body.

[0008] Preferably, the sealing mechanism includes an air compression plate, which is slidably connected inside the pipe cover and fixedly connected to the push-pull shaft;

[0009] A sealing gasket is fixedly installed on the outer side of the air compression plate;

[0010] A first vent pipe extending into the interior of the sealing rod is fixedly installed on the pipe cover, and two second vent pipes communicating with each other are fixedly installed on the first vent pipe.

[0011] A sealing airbag is fixedly installed on the sealing rod, and the ends of the two second air passages that do not contact the first air passage are respectively connected to the sealing airbag.

[0012] Preferably, an annular sealing groove is formed on the inner wall of the tube.

[0013] Preferably, a return spring is movably sleeved on the push-pull shaft, and the two ends of the return spring are respectively fixedly connected to the surface of the air compression plate and the inner wall of the pipe cover.

[0014] Preferably, magnets are fixedly installed on the opposite side of the tube cap and the tube body, and the magnets on the tube body and the tube cap attract each other magnetically.

[0015] Preferably, a protective pad is fixedly installed on the surface of the tube.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This new type of centrifuge tube with homogenization function allows air inside the sealing bladder to flow back to the inside of the tube cap by pulling the push rod. This eliminates the direct sealing effect between the tube body and the tube cap, making it easier and faster to seal and open the tube cap, and preventing the sample from spilling out of the tube body.

[0018] This new type of centrifuge tube with homogenization function uses a magnet to make the cap more secure when it is fastened to the tube body, preventing it from loosening and thus avoiding the tube opening from being exposed to the air and causing sample contamination. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of a novel centrifuge tube according to the present invention;

[0021] Figure 2 This is a schematic diagram showing the disassembled tube body and tube cap of this utility model;

[0022] Figure 3 This is a schematic diagram of the inside of the pipe cap of this utility model.

[0023] Reference numerals: 1. Tube body; 2. Tube cap; 3. Magnet; 4. Protective pad; 5. Push-pull shaft; 6. Sealing rod; 7. Sealing airbag; 8. Sealing groove; 9. Air compression plate; 10. Return spring; 11. First air passage pipe; 12. Second air passage pipe; 13. Sealing gasket. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Please see Figure 1-3 The present invention provides a technical solution: a novel centrifuge tube, comprising a tube body 1, a tube cap 2 provided at the upper end of the tube body 1, the tube cap 2 having a hollow internal structure, and a push-pull shaft 5 slidably connected to the tube cap 2;

[0029] A sealing rod 6 with the same internal diameter as the pipe body 1 is fixedly installed on the pipe cap 2;

[0030] The pipe cap 2 is provided with a sealing mechanism for sealing the pipe body 1;

[0031] A protective pad 4 is fixedly installed on the surface of the pipe body 1;

[0032] When tube body 1 is needed, the sample can be injected into the inside of tube body 1. At this time, the sealing rod 6 is inserted into the inside of tube body 1 to form a preliminary seal. Then, the sealing mechanism is used to fix and seal the tube cap 2 and tube body 1.

[0033] Furthermore, magnets 3 are fixedly installed on the side of the tube cap 2 opposite to the tube body 1, and the magnets 3 on the tube body 1 and the tube cap 2 are magnetically attracted to each other.

[0034] The magnet 3 makes the tube cap 2 more secure when it is fastened to the tube body 1, and it is not easy for it to loosen. Therefore, it avoids the opening of the tube body 1 from being exposed to the air and causing contamination to the sample.

[0035] Furthermore, the sealing mechanism includes an air compression plate 9, which is slidably connected inside the pipe cover 2 and fixedly connected to the push-pull shaft 5.

[0036] A sealing gasket 13 is fixedly installed on the outer side of the air compression plate 9;

[0037] A return spring 10 is movably sleeved on the push-pull shaft 5. The two ends of the return spring 10 are fixedly connected to the surface of the air compression plate 9 and the inner wall of the pipe cover 2, respectively.

[0038] A first vent pipe 11 extending into the interior of the sealing rod 6 is fixedly installed on the pipe cap 2, and two second vent pipes 12 communicating with each other are fixedly installed on the first vent pipe 11.

[0039] A sealing airbag 7 is fixedly installed on the sealing rod 6, and the ends of the two second air pipes 12 that do not contact the first air pipe 11 are respectively connected to the sealing airbag 7.

[0040] An annular sealing groove 8 is provided on the inner wall of the pipe body 1;

[0041] When it is necessary to seal the tube body 1, pull the push-pull rod 5. At this time, the push-pull rod 5 is forced to slide the air compression plate 9 upward. Therefore, the suction force generated at this time causes the air inside the sealing airbag 7 to be injected into the tube cap 2. Thus, the sealing rod 6 can be easily inserted into the tube body 1. When the sealing rod 6 is fully inserted, no more force is applied to the push-pull rod 5. At this time, under the elasticity of the return spring 10, the air compression plate 9 returns to its original position. Thus, the air inside the tube cap 2 is re-injected into the sealing airbag 7. At this time, the sealing airbag 7 expands and gets stuck into the sealing groove 8. Thus, the tube cap 2 and the tube body 1 are fixed together. At the same time, under the action of the sealing airbag 7, the tube body 1 is sealed, thereby preventing sample leakage during the carrying of the tube body 1.

[0042] Working principle: When it is necessary to seal the tube body 1, pull the push-pull rod 5. At this time, the push-pull rod 5 is forced to slide the air compression plate 9 upward. The resulting suction force causes the air inside the sealing airbag 7 to be injected into the tube cap 2. Thus, the sealing rod 6 can be easily inserted into the tube body 1. When the sealing rod 6 is fully inserted, no more force is applied to the push-pull rod 5. At this time, under the elasticity of the return spring 10, the air compression plate 9 returns to its original position, thus re-injecting the air inside the tube cap 2 into the sealing airbag 7. The sealing airbag 7 then expands and locks into the sealing groove 8, thus completing the fixation between the tube cap 2 and the tube body 1. At the same time, under the action of the sealing airbag 7, the tube body 1 is sealed, thereby preventing sample leakage during the carrying of the tube body 1.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A novel centrifuge tube, comprising a tube body (1), characterized in that: The upper end of the tube body (1) is provided with a tube cover (2), the inside of the tube cover (2) is a hollow structure, and a push-pull shaft (5) is slidably connected to the tube cover (2). A sealing rod (6) with the same internal diameter as the pipe body (1) is fixedly installed on the pipe cap (2); A sealing mechanism is provided on the pipe cap (2) to seal the pipe body (1); The sealing mechanism includes an air compression plate (9), which is slidably connected inside the pipe cover (2) and fixedly connected to the push-pull shaft (5); A sealing gasket (13) is fixedly installed on the outer side of the air compression plate (9); A first vent pipe (11) extending into the sealing rod (6) is fixedly installed on the pipe cap (2), and two second vent pipes (12) communicating with each other are fixedly installed on the first vent pipe (11). A sealing airbag (7) is fixedly installed on the sealing rod (6), and the ends of the two second air passages (12) that do not contact the first air passage (11) are respectively connected to the sealing airbag (7); The inner wall of the tube (1) is provided with an annular sealing groove (8); A return spring (10) is movably sleeved on the push-pull shaft (5). The two ends of the return spring (10) are fixedly connected to the surface of the air compressor plate (9) and the inner wall of the pipe cover (2), respectively.

2. The novel centrifuge tube according to claim 1, characterized in that: Magnets (3) are fixedly installed on the side of the tube cap (2) opposite to the tube body (1), and the magnets (3) on the tube body (1) and the tube cap (2) are magnetically attracted to each other.

3. A novel centrifuge tube according to claim 1, characterized in that: A protective pad (4) is fixedly installed on the surface of the tube (1).

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