Stable test tube for RNA extraction

Abstract

The utility model relates to a stable test tube for RNA (Ribonucleic Acid) extraction, which comprises a sealing assembly mounted at the upper end of a test tube body, the sealing assembly comprises a cylindrical block, a plurality of connecting rods are fixedly connected to the outer side of the upper end of the cylindrical block, the top ends of the connecting rods are fixedly connected with a circular tube, and a mounting rod is fixedly connected to the center of the upper end of the cylindrical block; the upper end of the mounting rod is fixedly connected with an external thread block, the outer side of the external thread block is in threaded connection with an extrusion block, an internal thread is formed in the position between the inner side of the extrusion block and the external thread block, the upper end of the extrusion block is fixedly connected with a rotating block, and rubber air bags are arranged on the outer sides of the mounting rod and the connecting rod and located between the round pipe and the cylindrical block. The test tube has the effect that the test tube body can be tightly sealed, experiment failure caused by untight sealing is avoided, the sealing assembly can be conveniently mounted and dismounted, and experimenters can conveniently and rapidly operate the test tube.

Description

Technical Field

[0001] This application relates to the technical field of test tubes, and in particular to a stable test tube for RNA extraction. Background Technology

[0002] RNA extraction is a crucial step in molecular biology experiments, and test tubes, as important containers in the RNA extraction process, have a significant impact on experimental results due to their quality and characteristics. Test tubes should have good transparency to allow for observation of the RNA extraction process during the experiment.

[0003] In the RNA extraction process, the stability and sealing of the test tube are crucial. Traditional RNA extraction test tubes often have problems with poor sealing and easy leakage, which not only affects the RNA extraction efficiency, but may also contaminate the experimental environment and even lead to experimental failure. In addition, some test tubes are complicated to fix and disassemble, which is not conducive to the rapid operation of the experimenters.

[0004] Therefore, those skilled in the art have provided a stable test tube for RNA extraction to address the problems mentioned in the background section. Utility Model Content

[0005] To address the problems mentioned in the background art, this application provides a stable test tube for RNA extraction.

[0006] The stable test tube for RNA extraction provided in this application adopts the following technical solution:

[0007] A stable test tube for RNA extraction includes a sealing assembly mounted on the upper end of the test tube body. The sealing assembly includes a cylindrical block, with several connecting rods fixedly connected to the outer side of the upper end of the cylindrical block. A round tube is fixedly connected to the top of the connecting rods. An installation rod is fixedly connected to the center of the upper end of the cylindrical block. An external threaded block is fixedly connected to the upper end of the installation rod. A compression block is threaded to the outer side of the external threaded block. An internal thread is formed between the inner side of the compression block and the external threaded block. A rotating block is fixedly connected to the upper end of the compression block. A rubber air bladder is provided on the outer side of the installation rod and the connecting rod, located between the round tube and the cylindrical block. A second installation hole and a first installation hole are respectively provided on the rubber air bladder corresponding to the positions of the installation rod and the connecting rod.

[0008] Preferably, a spring is centrally located on the inner side of the rubber airbag, and circular support plates are respectively provided between the upper and lower ends of the spring and the rubber airbag.

[0009] Preferably, the upper end of the rubber airbag and the position between the first mounting hole and the second mounting hole are provided with an annular protrusion, and the sidewall of the rubber airbag is thin-walled.

[0010] Preferably, a ring plate is fixedly connected to the outer side of the circular tube near the top end, and both the ring plate and the outer side of the rotating block are provided with anti-slip texture.

[0011] Preferably, sealing rings are fixedly connected to the outer side of the cylindrical block and the outer side of the cylindrical tube near the rubber airbag.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The rotating block drives the extrusion block, which, in conjunction with the external threaded block, compresses the rubber airbag along the direction of the mounting rod. Under pressure, the sidewall of the rubber airbag deforms and contacts the inner wall of the test tube body, sealing it. Reversing the rotation of the rotating block releases the seal. A spring, in conjunction with a circular support plate, restores the rubber airbag to its original shape. The sealing ring further enhances the seal on the test tube body. This system provides a tight seal for the test tube body, preventing experimental failures due to incomplete sealing. It also facilitates the installation and disassembly of the sealing components, allowing for quick and easy operation by researchers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the structure of the closed component of this application;

[0016] Figure 3 This is a schematic diagram of the internal structure of the closed component of this application;

[0017] Figure 4 This is a schematic diagram of the structure of the rubber airbag of this application;

[0018] Figure 5 This is a cross-sectional view of the rubber airbag of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Test tube body; 2. Sealing assembly; 201. Cylindrical block; 202. Mounting rod; 203. External threaded block; 204. Connecting rod; 205. Round tube; 206. Ring plate; 207. Extrusion block; 208. Internal thread; 209. Rotating block; 210. Sealing ring; 211. Rubber air bladder; 212. First mounting hole; 213. Second mounting hole; 214. Spring; 215. Circular ring support plate. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] like Figure 1-5 As shown, this application discloses a stable test tube for RNA extraction, including a sealing component 2 installed on the upper end of the test tube body 1. The sealing component 2 includes a cylindrical block 201. Several connecting rods 204 are installed on the outer side of the upper end of the cylindrical block 201. A round tube 205 is fixedly connected to the top of the connecting rod 204. An installation rod 202 is installed in the center of the upper end of the cylindrical block 201. An external threaded block 203 is installed on the upper end of the installation rod 202. A squeezing block 207 is installed on the outer side of the external threaded block 203. An internal thread 208 is opened between the inner side of the squeezing block 207 and the external threaded block 203. A rotating block 209 is installed on the upper end of the squeezing block 207. A rubber airbag 211 is provided on the outer side of the installation rod 202 and the connecting rod 204 and located between the round tube 205 and the cylindrical block 201. A second installation hole 213 and a first installation hole 212 are respectively provided on the rubber airbag 211 corresponding to the positions of the installation rod 202 and the connecting rod 204.

[0023] Insert the cylindrical block 201 and part of the round tube 205 into the test tube body 1, pinch the ring 206 and the rotating block 209, rotate the rotating block 209 to drive the extrusion block 207 to rotate, the extrusion block 207 engages with the external thread block 203 through the internal thread 208, the extrusion block 207 descends along the direction of the mounting rod 202 to extrude the rubber airbag 211, the rubber airbag 211 is installed between the round tube 205 and the cylindrical block 201, the side wall of the rubber airbag 211 deforms after being compressed, so that the side wall of the rubber airbag 211 contacts the inner wall of the test tube body 1, sealing the upper end of the test tube body 1, and the seal with the test tube body 1 can be canceled by rotating the rotating block 209 in the opposite direction.

[0024] like Figure 3 As shown, a spring 214 is centrally located on the inner side of the rubber airbag 211. Circular support plates 215 are respectively provided between the upper and lower ends of the spring 214 and the rubber airbag 211. The spring 214, together with the circular support plates 215, can support the rubber airbag 211 and can also cooperate with the compression block 207 to compress the upper part of the rubber airbag 211.

[0025] like Figure 4-5As shown, an annular protrusion is provided at the upper end of the rubber airbag 211 and at the position between the first mounting hole 212 and the second mounting hole 213. The side wall of the rubber airbag 211 is thin-walled. By providing an annular protrusion and a thin outer wall on the rubber airbag 211, it is easy to compress the rubber airbag 211 to deform.

[0026] like Figure 1 As shown, a ring plate 206 is installed on the outer side of the round tube 205 near the top. Both the outer side of the ring plate 206 and the rotating block 209 are provided with anti-slip texture. By providing the ring plate 206, it is easier for the user to clamp the round tube 205 and limit the part of the round tube 205 inserted into the test tube body 1. By providing anti-slip texture on the ring plate 206 and the rotating block 209, the friction force when clamping the ring plate 206 and rotating the rotating block 209 can be increased.

[0027] like Figure 2-3 As shown, sealing rings 210 are installed on the outer side of the cylindrical block 201 and the outer side of the circular tube 205 near the rubber air bladder 211. By setting the sealing rings 210, the sealing performance of the test tube body 1 can be improved.

[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] The implementation principle of a stable test tube for RNA extraction in this application embodiment is as follows:

[0031] Before use, the sealing component 2 is in an unsecured state. The cylindrical block 201 at the bottom and the cylindrical tube 205 at the top of the sealing component 2 can be freely inserted into the test tube body 1. When it is necessary to seal the top of the test tube body 1, the cylindrical block 201 at the bottom and the cylindrical tube 205 at the top of the sealing component 2 are inserted into the test tube body 1. The ring plate 206 and the rotating block 209 are pinched, and the rotating block 209 is rotated clockwise to drive the compression block 207 connected to it to rotate. The compression block 207 engages with the external thread block 203 through its internal thread 208. As the rotation proceeds, the compression block 207 descends along the direction of the mounting rod 202. During the descent of the compression block 207, it compresses the annular protrusion on the upper part of the rubber air bladder 211 located between the cylindrical tube 205 and the cylindrical block 201. After being compressed, the side wall of the rubber air bladder 211 deforms, and its side wall comes into close contact with the test tube body 1. The inner wall of the test tube body 1 is sealed. When the sealing component 2 needs to be disassembled, the rotating block 209 is rotated in the opposite direction, so that the squeezing block 207 rises along the direction of the mounting rod 202 and no longer squeezes the rubber air bladder 211. The spring 214 and the ring support plate 215 restore the rubber air bladder 211 to its original shape, and the seal between the sealing component 2 and the test tube body 1 is released. The sealing component 2 can be easily removed from the test tube body 1. The structure of the spring 214 and the ring support plate 215 inside the sealing component 2 provides support for the rubber air bladder 211, ensuring that it can deform evenly when compressed. The anti-slip texture on the ring plate 206 and the rotating block 209 increases the friction during clamping and rotation, making it easier for the experimenter to operate. The sealing ring 210 on the outside of the cylindrical block 201 and the round tube 205 further improves the sealing between the test tube body 1 and the sealing component 2, ensuring that there is no liquid leakage during the experiment.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stable test tube for RNA extraction, comprising a sealing component (2) mounted on the upper end of the test tube body (1), characterized in that, The enclosed assembly (2) includes a cylindrical block (201). Several connecting rods (204) are fixedly connected to the outer side of the upper end of the cylindrical block (201). A round tube (205) is fixedly connected to the top of each connecting rod (204). An installation rod (202) is fixedly connected to the center of the upper end of the cylindrical block (201). An external threaded block (203) is fixedly connected to the upper end of the installation rod (202). A pressing block (207) is threaded onto the outer side of the external threaded block (203). The inner side of the pressing block (207) is connected to the outer side... An internal thread (208) is provided between the threaded blocks (203). A rotating block (209) is fixedly connected to the upper end of the extrusion block (207). A rubber airbag (211) is provided on the outside of the mounting rod (202) and the connecting rod (204) and located between the round tube (205) and the cylindrical block (201). A second mounting hole (213) and a first mounting hole (212) are respectively provided on the rubber airbag (211) corresponding to the mounting rod (202) and the connecting rod (204).

2. A stable test tube for RNA extraction according to claim 1, characterized in that: A spring (214) is centrally located on the inner side of the rubber airbag (211), and a ring support plate (215) is provided between the upper and lower ends of the spring (214) and the rubber airbag (211).

3. A stable test tube for RNA extraction according to claim 1, characterized in that: An annular protrusion is provided at the upper end of the rubber airbag (211) and between the first mounting hole (212) and the second mounting hole (213), and the sidewall of the rubber airbag (211) is thin-walled.

4. A stable test tube for RNA extraction according to claim 1, characterized in that: A ring plate (206) is fixedly connected to the outer side of the round tube (205) near the top. Both the outer side of the ring plate (206) and the outer side of the rotating block (209) are provided with anti-slip texture.

5. A stable test tube for RNA extraction according to claim 1, characterized in that: A sealing ring (210) is fixedly connected to both the outer side of the cylindrical block (201) and the outer side of the circular tube (205) near the rubber airbag (211).

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