A centrifuge tube cap

Abstract

The utility model relates to centrifugal device technical field discloses a centrifugal tube cap for with centrifugal tube cooperation, and centrifugal tube top fixedly connected with mounting seat, is provided with outer thread on mounting seat outer wall, is provided with the addition mouth in mounting seat, be provided with the cap on mounting seat, be provided with inner thread on cap inner wall, and inner thread and outer thread mutually cooperate, fixedly connected with fixed cylinder in cap, and the sliding connection of fixed cylinder in has the sliding block, and one end fixedly connected with connecting rod on sliding block, and the other end fixedly connected with rotating plate of connecting rod passes through cap, the utility model discloses the setting of rotating plate and the mutual cooperation of setting first take -out port and second take -out port in rotating plate and cap, to make staff not to need to pull out cap, can take out the reagent in centrifugal tube to the staff, and after taking out end, still can close centrifugal tube through reverse rotation rotating plate, to avoid sundries falling into centrifugal tube, and the practicability of equipment has been improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge equipment technology, specifically a centrifuge tube cap. Background Technology

[0002] Centrifugation is a frequently used operation in industrial production and laboratory analysis. Centrifuge tubes used in laboratory analysis are mostly standard in style, primarily consisting of a cylindrical tube body and a matching cap. During centrifugation, the material to be centrifuged is placed into the centrifuge tube, the cap is placed on the tube, and the tube is then placed in a centrifuge apparatus for centrifugation, thus achieving the separation of the material.

[0003] Liquid-liquid extraction is a common method for extracting and purifying compounds. The process of separating the two immiscible liquids after extraction is called separation. During extraction, emulsification easily occurs, where one liquid is uniformly dispersed in the other as extremely small droplets, making separation impossible. Centrifugation is a commonly used rapid demulsification method. After centrifugation, the liquid in the centrifuge tube needs to be transferred to other instruments for separation. However, transferring liquid from the centrifuge tube can easily result in material loss, and overly vigorous transfer can lead to re-emulsification. Furthermore, other contaminants can be introduced during the transfer process, affecting the detection results. Utility Model Content

[0004] The purpose of this invention is to provide a centrifuge tube cap to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A centrifuge tube cap is used to mate with a centrifuge tube. A mounting base is fixedly connected to the top of the centrifuge tube. The mounting base has external threads on its outer wall and an inlet for adding material inside. The cap is mounted on the mounting base, and the cap has internal threads on its inner wall. The internal and external threads mate with each other. A fixed cylinder is fixedly connected inside the cap, and a slider is slidably connected inside the fixed cylinder. One end of a connecting rod is fixedly connected to the slider, and the other end of the connecting rod passes through the cap and is fixedly connected to a rotating plate. A spring is fitted onto the connecting rod inside the fixed cylinder. The cap has a first outlet, and a rotating groove with a limit groove is provided on one side of the first outlet. A sealing plug is fixedly connected to the rotating plate, and the sealing plug mates with the first outlet. A second outlet is located inside the rotating plate, and a sealing membrane is installed inside the second outlet. The first and second outlets mate with each other.

[0007] As a further embodiment of this invention, a scale is provided on the outer wall of the centrifuge tube.

[0008] As a further embodiment of this utility model, a knob is fixedly connected to the rotating plate.

[0009] As a further embodiment of this utility model, the outer wall of the cap and the knob is provided with anti-slip texture.

[0010] As a further improvement of this utility model, the knob is provided with a rotation indicator.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a rotating plate and cooperating with the first and second outlets set in the rotating plate and the cap, the staff can take out the reagents in the centrifuge tube without pulling out the cap. After taking out the reagents, the centrifuge tube can be closed by rotating the rotating plate in the opposite direction, thereby preventing foreign matter from falling into the centrifuge tube and improving the practicality of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a centrifuge tube cap according to the present invention.

[0013] Figure 2 This is a schematic diagram of the structure of a centrifuge tube cap according to the present invention.

[0014] Figure 3 This is a cross-sectional view of a centrifuge tube cap according to this utility model.

[0015] In the diagram: 1-Centrifuge tube, 2-Mounting base, 3-External thread, 4-Adding port, 5-Scale, 6-Pipe cap, 7-Internal thread, 8-Anti-slip texture, 9-Fixing cylinder, 10-Slider, 11-Connecting rod, 12-Spring, 13-Rotating plate, 14-First outlet, 15-Rotating ramp, 16-Limiting groove, 17-Second outlet, 18-Sealing membrane, 19-Knob, 20-Sealing plug, 21-Rotation indicator. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] See Figures 1-3In this embodiment of the utility model, a centrifuge tube cap is used to cooperate with a centrifuge tube 1. A mounting base 2 is fixedly connected to the top of the centrifuge tube 1. An external thread 3 is provided on the outer wall of the mounting base 2. An adding port 4 is provided inside the mounting base 2. A tube cap 6 is provided on the mounting base 2. An internal thread 7 is provided on the inner wall of the tube cap 6. The internal thread 7 and the external thread 3 cooperate with each other. A fixing cylinder 9 is fixedly connected inside the tube cap 6. A slider 10 is slidably connected inside the fixing cylinder 9. One end of a connecting rod 11 is fixedly connected to the slider 10. The other end of the connecting rod 11 passes through the tube cap 6 and is fixedly connected to a rotating plate 13. A spring sleeved on the connecting rod 11 is provided inside the fixing cylinder 9. Spring 12, the cap 6 is provided with a first outlet 14, a rotating groove 15 is provided on one side of the first outlet 14, and a limiting groove 16 is provided in the rotating groove 15. A sealing plug 20 is fixedly connected to the rotating plate 13, and the sealing plug 20 cooperates with the first outlet 14. A second outlet 17 is provided in the rotating plate 13, and a sealing membrane 18 is installed in the second outlet 17. The first outlet 14 and the second outlet 17 cooperate with each other. In this utility model, the centrifuge tube 1 is first used to hold the reagent, and the cap 6 is tightened on the mounting base 2 by the cooperation of the external thread 3 and the internal thread 7, thereby sealing the addition port 4. Afterwards, the reagents in centrifuge tube 1 can be centrifuged. After centrifugation, this invention does not require opening the tube cap 6; simply drive the rotating plate 13 to rotate. The rotating plate 13 drives the sealing plug 20 to rotate. At this time, the sealing plug 20 is rotated out from inside the rotating groove 15, thereby rotating and moving the sealing plug 20 into the limiting groove 16. Simultaneously, the second outlet 17 rotates synchronously with the rotating plate 13. Then, when the sealing plug 20 moves to the bottom of the limiting groove 16, the rotating plate 13 stops rotating due to the interaction between the sealing plug 20 and the limiting groove 16. At this time, the first outlet 14 and the second outlet 17... With the openings 17 overlapping, the staff can puncture the sealing film 18 using a sampler, and then insert the sampler into the centrifuge tube 1 through the first outlet 14 and the second outlet 17 to sample the reagent in the centrifuge tube 1. After the sample is taken out, the rotating plate 13 is rotated in the opposite direction to make the first outlet 14 and the second outlet 17 misaligned, and the sealing plug 20 is screwed back into the second outlet 17. At this time, the sealing plate drives the slider 10 to rotate and extend within the fixed cylinder 9 through the connecting rod 11, and the slider 10 is elastically pushed by the spring 12, so that the rotating plate 13 and the tube cap 6 are elastically pressed together.

[0018] In one instance of this embodiment, please refer to Figures 1-3 A scale 5 is provided on the outer wall of the centrifuge tube 1. This utility model uses the scale 5 to accurately read the amount of liquid in the centrifuge tube 1.

[0019] In one instance of this embodiment, please refer to Figures 1-3A knob 19 is fixedly connected to the rotating plate 13. Anti-slip texture 8 is provided on the outer wall of the tube cap 6 and the knob 19. This utility model drives the rotating plate 13 to rotate by turning the knob 19. At the same time, the anti-slip texture 8 makes it easy to turn the knob 19 and the tube cap 6.

[0020] In one instance of this embodiment, please refer to Figures 1-3 The knob 19 is provided with a rotation indicator 21. The present invention uses the rotation indicator 21 to indicate the rotation direction of the knob 19.

[0021] The working principle of this utility model is as follows: First, the centrifuge tube 1 is used to hold the reagent, and the cap 6 is tightened onto the mounting base 2 through the interaction of the external thread 3 and the internal thread 7, thereby sealing the addition port 4. Then, the reagent in the centrifuge tube 1 can be centrifuged. After centrifugation, this utility model does not require opening the cap 6. Simply turn the knob 19 to rotate the rotating plate 13, which in turn rotates the sealing plug 20. At this time, the sealing plug 20 is unscrewed from the rotating groove 15, thereby rotating and moving the sealing plug 20 into the limiting groove 16. At the same time, the second outlet 17 rotates synchronously with the rotating plate 13. Then, when the sealing plug 20 moves to the bottom of the limiting groove 16, the rotating plate 1... 3. With the cooperation of the sealing plug 20 and the limiting groove 16, the rotation stops. At this time, the first outlet 14 and the second outlet 17 overlap. The staff can then puncture the sealing film 18 with the sampler and insert the sampler into the centrifuge tube 1 through the first outlet 14 and the second outlet 17 to sample the reagent in the centrifuge tube 1. After the sample is taken out, the rotating plate 13 is rotated in the opposite direction to make the first outlet 14 and the second outlet 17 misaligned. The sealing plug 20 is then screwed back into the second outlet 17. At this time, the sealing plate drives the slider 10 to rotate and extend in the fixed cylinder 9 through the connecting rod 11, and the slider 10 is elastically pushed by the spring 12, so that the rotating plate 13 and the tube cap 6 are elastically pressed together.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifuge tube cap for use with centrifuge tubes, characterized in that, A mounting base is fixedly connected to the top of the centrifuge tube. The outer wall of the mounting base has external threads, and the mounting base has an inlet. A tube cap is mounted on the mounting base, and the inner wall of the tube cap has internal threads that mate with the external threads. A fixed cylinder is fixedly connected inside the tube cap, and a slider is slidably connected inside the fixed cylinder. One end of a connecting rod is fixedly connected to the slider, and the other end of the connecting rod passes through the tube cap and is fixedly connected to a rotating plate. A spring is fitted onto the connecting rod inside the fixed cylinder. A first outlet is provided inside the tube cap, and a rotating groove is provided on one side of the first outlet. A limit groove is provided within the rotating groove. A sealing plug is fixedly connected to the rotating plate, and the sealing plug mates with the first outlet. A second outlet is provided inside the rotating plate, and a sealing membrane is installed inside the second outlet. The first and second outlets mate with each other.

2. A centrifuge cap according to claim 1, characterized in that, A scale is provided on the outer wall of the centrifuge tube.

3. A centrifuge cap according to claim 1, characterized in that, A knob is fixedly connected to the rotating plate.

4. A centrifuge cap according to claim 3, characterized in that, The outer wall of the cap and knob is provided with anti-slip texture.

5. A centrifuge cap according to claim 3, characterized in that, The knob is equipped with a rotation indicator.

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