Centrifugal tube structure

Abstract

The utility model discloses a centrifuge tube structure which comprises a tube body and a tube cover, one end of the tube body is provided with an opening, one end, close to the opening, of the interior of the tube body is provided with an annular convex edge, and the tube cover comprises an embedding part used for being inserted into the tube body and an outer end part located outside the tube body. A clamping strip and a mounting groove are arranged around the embedding part, the outer diameter of the clamping strip is larger than the inner diameter of the convex edge, and when the embedding part is inserted into the pipe body and pressed downwards, the clamping strip crosses over the convex edge to enable the pipe cover and the pipe body to be buckled; the installation groove is located in the side, close to the opening, of the protruding edge, the width of a groove opening of the installation groove is smaller than that of the groove bottom, an elastic sealing ring is arranged in the installation groove and comprises an inner body embedded into the installation groove and an outer body located outside the installation groove, and the size of the inner body is larger than that of the outer body. The outer body abuts against the inner wall of the pipe body. According to the utility model, the unique mounting groove is matched with the elastic sealing ring, so that the leakage-proof effect is improved, and the sealing performance is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biotechnology, in particular to a centrifuge tube structure. Background Art

[0002] A centrifuge tube is a tubular sample container used in laboratories, usually for centrifugation operations, sample storage, displacement liquid and other experimental operations. It has various types, including classification according to size, bottom shape, lid closing method and material. The materials of centrifuge tubes include plastics, glass and steel. Plastic centrifuge tubes are one of the most commonly used consumables in biological experiments, but their tube bodies are prone to deformation and have poor sealing performance. Summary of the Utility Model

[0003] Aiming at the above existing technical problems, the purpose of the utility model is to provide a centrifuge tube structure to increase the strength of the tube body and improve the sealing effect.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A centrifuge tube structure includes a tube body and a tube lid. One end of the tube body is provided with an opening. An annular rib is arranged at one end of the tube body close to the opening. The tube lid includes an insertion part for inserting into the tube body and an outer end part outside the tube body. A clamping strip and a mounting groove are respectively arranged around the insertion part. The outer diameter of the clamping strip is larger than the inner diameter of the rib. When the insertion part is inserted into the tube body and pressed down, the clamping strip crosses over the rib to buckle the tube lid and the tube body. The mounting groove is located on one side of the rib close to the opening. The width of the notch of the mounting groove is smaller than the width of the bottom of the groove. An elastic sealing ring is arranged in the mounting groove. The elastic sealing ring includes an inner body inserted into the mounting groove and an outer body outside the mounting groove. The volume of the inner body is larger than that of the outer body. The outer body abuts against the inner wall of the tube body.

[0006] Preferably, an annular stop strip is arranged on the side of the tube body far from the opening inside the tube body. The inner diameter of the stop strip is adapted to the outer diameter of the insertion part. A fillet is arranged on the side of the stop strip close to the opening.

[0007] Preferably, the cross-section of the mounting groove is an oblong shape, and the side surface of the oblong shape is communicated with the surface of the insertion part.

[0008] Preferably, an annular slot is formed between the insertion part and the outer end part. The opening of the tube body is inserted into the slot, and a sealing ring is arranged at the bottom of the slot.

[0009] Preferably, indentations are arranged on both sides of the elastic sealing ring, and the indentations divide the elastic sealing ring into the inner body and the outer body.

[0010] Preferably, a plurality of reinforcing strips extending in the length direction are provided on the outer wall surrounding the tube body.

[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] The centrifuge tube structure of the utility model includes a tube body and a tube cap. An opening is provided at one end of the tube body. A circular convex rib is provided at one end of the tube body close to the opening. The tube cap includes an embedding part for inserting into the tube body and an outer end part outside the tube body. A clamping strip and a mounting groove are respectively provided around the embedding part. The outer diameter of the clamping strip is greater than the inner diameter of the convex rib. When the embedding part is inserted into the tube body and pressed down, the clamping strip crosses the convex rib to fasten the tube cap and the tube body; the mounting groove is on the side of the convex rib close to the opening. The width of the groove opening of the mounting groove is smaller than the width of the groove bottom. An elastic sealing ring is provided in the mounting groove. The elastic sealing ring includes an inner body embedded in the mounting groove and an outer body outside the mounting groove. The volume of the inner body is greater than the volume of the outer body. The outer body abuts against the inner wall of the tube body. The unique matching of the mounting groove and the elastic sealing ring improves the leak-proof effect, effectively improves the sealing performance, has a simple structure and is convenient to use, and improves the strength of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The technical solution of the utility model will be further described below with reference to the drawings:

[0014] FIG Figure 1 is a perspective view of the centrifuge tube structure of the utility model;

[0015] FIG Figure 2 is a top view of the centrifuge tube structure of the utility model;

[0016] FIG Figure 3 is a sectional view taken along line A-A of FIG Figure 2 ;

[0017] FIG Figure 4 is a perspective view of the tube cap of the centrifuge tube structure of the utility model.

[0018] Wherein: 1. Tube body; 2. Tube cap; 3. Convex rib; 4. Embedding part; 5. Outer end part; 6. Clamping strip; 7. Mounting groove; 8. Elastic sealing ring; 81. Inner body; 82. Outer body; 83. Indentation; 9. Stop strip; 91. Rounding; 10. Slot; 11. Sealing ring; 12. Reinforcing strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the utility model.

[0020] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.

[0021] As shown in the Figure 1 accompanying drawings, the centrifugal tube structure of the present utility model includes a tube body 1 and a tube cap 2. One end of the tube body 1 has an opening. As shown in the Figure 3 accompanying drawings, an annular rib 3 is formed at one end of the interior of the tube body 1 near the opening. As shown in the Figure 4 accompanying drawings, the tube cap 2 includes an insertion part 4 for inserting into the tube body 1 and an outer end part 5 outside the tube body 1. A clamping strip 6 and a mounting groove 7 are respectively formed around the insertion part 4. The outer diameter of the clamping strip 6 is larger than the inner diameter of the rib 3. When the insertion part 4 is inserted into the tube body 1 and pressed down, the clamping strip 6 passes over the rib 3 so that the tube cap 2 and the tube body 1 are snap-connected.

[0022] The mounting groove 7 is located on the side of the rib 3 close to the opening. An elastic sealing ring 8 is provided in the mounting groove 7. The width of the notch of the mounting groove 7 is smaller than the width of the bottom of the groove, so that the elastic sealing ring 8 is not easily disengaged from the mounting groove 7. The elastic sealing ring 8 includes an inner body 81 embedded in the mounting groove 7 and an outer body 82 outside the mounting groove 7. The volume of the inner body 81 is larger than the volume of the outer body 82. The outer body 82 abuts against the inner wall of the tube body 1, so that the elastic sealing ring 8 will not be easily pulled out of the mounting groove 7 when the insertion part 4 enters and exits the tube body 1, ensuring the stable state of the elastic sealing ring 8 and better sealing effect.

[0023] The cross-section of the mounting groove 7 is an oval, and the side surface of the oval is communicated with the surface of the insertion part 4. Indentations 83 are processed on both sides of the elastic sealing ring 8. The indentations 83 divide the elastic sealing ring 8 into the inner body 81 and the outer body 82, making it more convenient for the inner body 81 to be filled and embedded in the mounting groove 7.

[0024] An annular stop strip 9 is formed on the side of the interior of the tube body 1 far from the opening of the rib 3. The inner diameter of the stop strip 9 is adapted to the outer diameter of the insertion part 4. When the tube cap 2 is installed and connected to the tube body 1, the insertion part 4 is fitted with the stop strip 9, making the installation of the tube cap 2 more stable and playing a certain sealing role at the same time. A chamfer 91 is processed on the side of the stop strip 9 close to the opening, which plays a guiding and buffering role for the entry of the insertion part 4.

[0025] An annular slot 10 is formed between the embedding part 4 and the outer end part 5. The opening of the tube body 1 is inserted into the slot 10. A sealing ring 11 is installed at the bottom of the slot 10, and the sealing ring 11 abuts against the opening, further enhancing the sealing performance between the tube body 1 and the tube cap 2.

[0026] A number of reinforcing strips 12 extending along the length direction are formed around the outer wall of the tube body 1 to enhance the strength of the tube body 1 and play an anti-slip role at the same time.

[0027] The structure of the centrifuge tube of the present utility model uses a unique installation groove 7 and an elastic sealing ring 8 in matching, improving the anti-leakage effect. The sealing ring 11 abuts against the opening, further enhancing the sealing performance between the tube body 1 and the tube cap 2. It has multiple anti-leakage mechanisms, achieving the effect of no liquid leakage when inverted, and effectively improving the sealing performance.

[0028] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A centrifuge tube structure, characterized in that: It includes a tube body and a tube cap. One end of the tube body is provided with an opening. An annular rib is arranged at one end of the tube body near the opening. The tube cap includes an insertion part for inserting into the tube body and an outer end part outside the tube body. A clamping strip and a mounting groove are respectively arranged around the insertion part. The outer diameter of the clamping strip is larger than the inner diameter of the rib. When the insertion part is inserted into the tube body and pressed down, the clamping strip crosses over the rib so that the tube cap and the tube body are fastened together. The mounting groove is on the side of the rib close to the opening. The width of the notch of the mounting groove is smaller than the width of the bottom of the groove. An elastic sealing ring is arranged in the mounting groove. The elastic sealing ring includes an inner body inserted into the mounting groove and an outer body outside the mounting groove. The volume of the inner body is larger than the volume of the outer body. The outer body abuts against the inner wall of the tube body.

2. The centrifuge tube structure according to claim 1, wherein: An annular stop strip is arranged on the side of the tube body inside the rib away from the opening. The inner diameter of the stop strip is adapted to the outer diameter of the insertion part. A chamfer is arranged on the side of the stop strip close to the opening.

3. The centrifuge tube structure according to claim 1, characterized in that: The cross-section of the mounting groove is oblong. The side surface of the oblong is communicated with the surface of the insertion part.

4. The centrifuge tube structure according to claim 1, wherein: An annular slot is formed between the insertion part and the outer end part. The opening of the tube body is inserted into the slot. A sealing ring is arranged at the bottom of the slot.

5. The centrifuge tube structure according to claim 1, wherein: Indentations are arranged on both sides of the elastic sealing ring. The indentations divide the elastic sealing ring into the inner body and the outer body.

6. The centrifuge tube structure according to claim 1, wherein: A number of reinforcing strips extending along the length direction are arranged around the outer wall of the tube body.

Images