Centrifuge tube set for extracting nucleic acid of penaeus vannamei

Abstract

The utility model belongs to the technical field of genetic material extraction appliance, concretely relates to special centrifugal tube suit of south American white prawn nucleic acid extraction, including the pipe body, the top threaded connection of pipe body has the pipe cap, the position department of pipe body outer wall is close to the fixed setting of mounting ring of top, the outer wall of pipe cap is below the sliding ring of mounting ring and is connected with the damping sliding, the position department of mounting ring bottom close to the outside edge is hinged with four upper articulated rods at equal intervals, the top of sliding ring is hinged with the lower articulated rod of corresponding position of upper articulated rod, and the corresponding upper articulated rod is hinged with the lower articulated rod between setting articulated assembly. The utility model places the pipe body on the test tube rack through the amplitude of the lower articulated rod and the upper articulated rod protruding from the outside of the pipe body to support the pipe body, so that the pipe body can be adapted to different diameter types of test tube racks, increase the types of centrifugal tubes that can be adapted to test tube racks, facilitate the use of centrifugal tubes, and at the same time, reduce the types of test tube racks that need to be purchased, and reduce the cost of purchasing test tube racks.

Description

Technical Field

[0001] This invention belongs to the technical field of genetic material extraction equipment, specifically involving a special centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei. Background Technology

[0002] The whiteleg shrimp (Litopenaeus vannamei) is an animal belonging to the family Penaeidae in the order Decapoda. Also known as the white shrimp or white prawn, it has a thin carapace, a light bluish-gray body color with small spots on its surface, and a rostrum that does not extend beyond the second segment of the first antennal peduncle. The lateral rostrum groove is short and disappears below the gastric spine. The average lifespan of the whiteleg shrimp exceeds 32 months. Before importation, its nucleic acid needs to be extracted to test its quality; this is done using centrifuge tubes.

[0003] During use, centrifuge tubes may need to be temporarily placed on test tube racks. Since centrifuge tubes come in different diameters, the test tube racks used to place them need to be compatible with the diameter of the centrifuge tubes. This results in the need to configure test tube racks of corresponding sizes to accommodate centrifuge tubes of different specifications, making the available test tube rack sizes relatively limited and increasing the cost of purchasing test tube racks. Utility Model Content

[0004] The purpose of this utility model is to provide a special centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei, which allows the same centrifuge tube to be placed in test tube racks of different sizes, increasing the variety of test tube racks that can be used for the same centrifuge tube, while reducing the variety of test tube racks that need to be purchased, thus reducing the cost of purchasing test tube racks.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei includes a tube body with a tube cap threaded to the top. An installation ring is fixedly mounted on the outer wall of the tube near the top. A sliding ring is slidably connected to the outer wall of the tube cap below the installation ring. Four upper hinge rods are hinged at equal intervals near the outer edge of the bottom of the installation ring. A lower hinge rod is hinged to the top of the sliding ring at a position corresponding to the upper hinge rods. A hinge assembly is provided between the corresponding upper and lower hinge rods, and the opposite ends of the upper and lower hinge rods are hinged together by the hinge assembly.

[0007] In a preferred embodiment, the hinge assembly includes a connecting block, which is fixedly disposed at one end of the lower hinge rod near the upper hinge rod. Hinge plates are symmetrically fixedly disposed on both sides of the upper hinge rod near the lower hinge rod. A hinge post is fixedly disposed between the two hinge plates, and the hinge post penetrates the interior of the connecting block and is rotatably connected to the connecting block.

[0008] In a preferred embodiment, two symmetrical cavities are formed inside the sliding ring near the bottom.

[0009] In a preferred embodiment, a sliding rod is fixedly installed at the top of the cavity, and a sliding sleeve is slidably connected to the bottom of the outer wall of the sliding rod. A first spring is installed at the top of the sliding sleeve outside the sliding rod, and the top of the first spring is fixedly connected to the outer wall of the sliding rod. An adjusting component is fixedly installed at the outer side of the sliding sleeve near the top, and an auxiliary retaining component is slidably connected to the inside of the sliding rod near the top. The bottom of the sliding sleeve extends to the outside of the sliding ring and is slidably connected to the sliding ring.

[0010] In a preferred embodiment, a limiting ring is fixedly provided on the outer wall of the slide rod at the top of the first spring, the top of the first spring is fixedly connected to the bottom of the limiting ring, and the top of the first spring is fixedly connected to the outer wall of the slide rod through the limiting ring.

[0011] In a preferred embodiment, the adjusting assembly includes an adjusting rod, which is fixedly connected to the outer wall of the sliding sleeve near the top. The adjusting rod has an "L" shape, and a first adjusting ball is fixedly disposed at the top of the adjusting rod. The first adjusting ball has a hemispherical shape.

[0012] In a preferred embodiment, the auxiliary retaining assembly includes a retaining rod slidably connected to the inside of a slide rod near the top. Both ends of the retaining rod extend to the outside of the slide rod, and the end of the retaining rod near the tube extends to the outside of the sliding ring to clamp the outer wall of the sliding ring. The end of the retaining rod away from the tube is bent downward and fixedly provided with a second adjusting ball. The second adjusting ball has a hemispherical structure, and the arc surface of the second adjusting ball is opposite to the arc surface of the first adjusting ball. A second spring is provided on the outer wall of the retaining rod. One end of the second spring is fixedly connected to the outer wall of the slide rod, and the inner wall of the other end of the second spring is fixedly connected to the outer wall of the retaining rod.

[0013] The technical effects achieved by this utility model are as follows:

[0014] The included angle between the lower hinge rod and the upper hinge rod of this utility model can gradually decrease, and the extent of the protrusion of the lower hinge rod and the upper hinge rod from the outside of the tube body at the connection point gradually increases. Thus, the tube body is supported and placed on the test tube rack by the extent of the protrusion of the lower hinge rod and the upper hinge rod from the outside of the tube body, so that the tube body can be adapted to test tube racks of different diameters, increasing the types of test tube racks that centrifuge tubes can be adapted to, facilitating the use of centrifuge tubes, and at the same time reducing the types of test tube racks that need to be purchased, thus reducing the cost of purchasing test tube racks.

[0015] This utility model uses an auxiliary fixing component to clamp the tube body, thereby making the position of the sliding ring on the tube body more stable, preventing the sliding ring from sliding on the outer wall of the tube body when it is not pushed, and improving the stability of the sliding ring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this practical application;

[0017] Figure 2 This is a schematic diagram of the connection structure between the mounting ring and the sliding ring in this practical application.

[0018] Figure 3 This is a schematic diagram of the position of the sliding sleeve in this practical application;

[0019] Figure 4 This is a practical book Figure 1 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram showing the location of the cavity in this practical application;

[0021] Figure 6 This is a practical book Figure 5 Enlarged view of point B in the middle;

[0022] Figure 7 This is a schematic diagram of the connection structure between the sliding rod and the retaining rod in this practical application.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Pipe body;

[0025] 2. Pipe cap;

[0026] 3. Install the ring;

[0027] 4. Sliding ring;

[0028] 5. Upper hinge rod;

[0029] 6. Lower hinge rod; 7. Connecting block; 8. Hinge column; 9. Hinge plate; 10. Cavity; 11. Slide rod; 12. Sliding sleeve; 13. First spring; 14. Limiting ring; 15. Adjusting rod; 16. First adjusting ball; 17. Fixing rod; 18. Second adjusting ball; 19. Second spring. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0033] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0034] Please see the appendix Figure 1 and Figure 2 As shown, this utility model provides a special centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei, including a tube body 1. A tube cap 2 is threadedly connected to the top of the tube body 1. An installation ring 3 is fixedly installed on the outer wall of the tube body 1 near the top. A sliding ring 4 is damped and slidably connected to the outer wall of the tube cap 2 below the installation ring 3. Four upper hinge rods 5 are hinged at equal intervals at the bottom of the installation ring 3 near the outer edge. A lower hinge rod 6 is hinged at the top of the sliding ring 4 at a position corresponding to the upper hinge rods 5. A hinge assembly is provided between the corresponding upper hinge rods 5 and lower hinge rods 6. The opposite ends of the corresponding upper hinge rods 5 and lower hinge rods 6 are hinged to each other through the hinge assembly.

[0035] In the above structure, when the bottom of the tube body 1 is inserted into the slot of the test tube rack, if the inside of the slot is larger than the diameter of the tube body 1, the sliding ring 4 can be pushed upward. During the upward sliding of the sliding ring 4, the sliding ring 4 applies an upward pushing force to the bottom end of the lower hinge rod 6, causing the lower hinge rod 6 and the upper hinge rod 5 to gradually tilt outward from the tube body 1, and an angle gradually forms between the lower hinge rod 6 and the upper hinge rod 5. As the sliding ring 4 gradually slides upward, the angle between the lower hinge rod 6 and the upper hinge rod 5 gradually decreases, and the extent of the protrusion of the lower hinge rod 6 and the upper hinge rod 5 from the outside of the tube body 1 gradually increases. Thus, the tube body 1 is supported and placed on the test tube rack by the extent of the protrusion of the lower hinge rod 6 and the upper hinge rod 5 from the outside of the tube body 1. This allows the tube body 1 to be adapted to test tube racks of different diameters, increasing the types of test tube racks that centrifuge tubes can be adapted to, facilitating the use of centrifuge tubes, and reducing the types of test tube racks that need to be purchased, thereby reducing the cost of purchasing test tube racks.

[0036] In a preferred embodiment, please refer to Figure 1 and Figure 4 The hinge assembly includes a connecting block 7, which is fixedly disposed at one end of the lower hinge rod 6 near the upper hinge rod 5. Hinge pieces 9 are symmetrically fixedly disposed on both sides of the upper hinge rod 5 near the lower hinge rod 6. A hinge post 8 is fixedly disposed between the two hinge pieces 9. The hinge post 8 passes through the interior of the connecting block 7 and is rotatably connected to the connecting block 7.

[0037] In this embodiment, as the angle between the lower hinge rod 6 and the upper hinge rod 5 gradually decreases, the lower hinge rod 6 drives the connecting block 7 to rotate around the hinge post 8, thereby achieving the adjustment of the angle between the upper hinge rod 5 and the lower hinge rod 6.

[0038] Secondly, please refer to it again. Figure 5 and Figure 6 Two symmetrical cavities 10 are opened inside the sliding ring 4 near the bottom.

[0039] The above structure reduces the weight of the sliding ring 4 by creating a cavity 10, making it easier to push the sliding ring 4.

[0040] Secondly, please refer to the following as well. Figure 6 and Figure 7 A slide rod 11 is fixedly installed at the top inside the cavity 10. A sliding sleeve 12 is slidably connected to the bottom of the outer wall of the slide rod 11. A first spring 13 is installed at the top of the sliding sleeve 12 outside the slide rod 11. The top of the first spring 13 is fixedly connected to the outer wall of the slide rod 11. An adjustment component is fixedly installed at the top of the outer side of the sliding sleeve 12. An auxiliary fixing component is slidably connected at the top of the inside of the slide rod 11. The bottom of the sliding sleeve 12 extends to the outside of the sliding ring 4 and is slidably connected to the sliding ring 4.

[0041] In the above structure, when the sliding sleeve 12 is not pressed, the tube body 1 can be clamped by the auxiliary fixing component, so that the position of the sliding ring 4 on the tube body 1 is more stable, preventing the sliding ring 4 from sliding on the outer wall of the tube body 1 when it is not pushed, thus improving the stability of the sliding ring 4. When it is necessary to push the sliding ring 4, the sliding sleeve 12 can be pressed, so that the sliding sleeve 12 slides on the outer wall of the slide rod 11. The first spring 13 is gradually compressed, thereby releasing the clamping of the auxiliary fixing component on the tube body 1 by the adjusting component, thereby releasing the positioning of the sliding ring 4, making it easier to push the sliding ring 4.

[0042] In a preferred embodiment, please refer to Figure 7 A limiting ring 14 is fixedly installed on the outer wall of the slide rod 11 at the top of the first spring 13. The top of the first spring 13 is fixedly connected to the bottom of the limiting ring 14, and the top of the first spring 13 is fixedly connected to the outer wall of the slide rod 11 through the limiting ring 14.

[0043] In this embodiment, the first spring 13 is limited by the limiting ring 14 to prevent the top of the first spring 13 from sliding on the outer wall of the slide rod 11.

[0044] Secondly, please refer to it again. Figure 6 and Figure 7 The adjustment assembly includes an adjustment rod 15, which is fixedly connected to the outer wall of the sliding sleeve 12 near the top. The adjustment rod 15 has an "L" shaped structure, and a first adjustment ball 16 is fixedly provided at the top of the adjustment rod 15. The first adjustment ball 16 has a hemispherical structure.

[0045] In the above structure, when the sliding sleeve 12 is pressed upward, the sliding sleeve 12 drives the adjusting rod 15 and the first adjusting ball 16 to move upward, thereby causing the first adjusting ball 16 to squeeze the auxiliary retaining component and push the auxiliary retaining component to move away from the tube body 1, thereby releasing the clamping of the auxiliary retaining component on the tube body 1.

[0046] Secondly, please refer to the following as well. Figure 6 and Figure 7 The auxiliary retaining assembly includes a retaining rod 17, which is slidably connected to the inside of the slide rod 11 near the top. Both ends of the retaining rod 17 extend to the outside of the slide rod 11, and the end of the retaining rod 17 near the tube body 1 extends to the outside of the sliding ring 4 to clamp the outer wall of the sliding ring 4. The end of the retaining rod 17 away from the tube body 1 is bent downward and fixedly provided with a second adjusting ball 18. The second adjusting ball 18 has a hemispherical structure, and the arc surface of the second adjusting ball 18 is opposite to the arc surface of the first adjusting ball 16. A second spring 19 is provided on the outer wall of the retaining rod 17. One end of the second spring 19 is fixedly connected to the outer wall of the slide rod 11, and the inner wall of the other end of the second spring 19 is fixedly connected to the outer wall of the retaining rod 17.

[0047] In this embodiment, when the sliding sleeve 12 is not pressed, the second spring 19 can clamp the tube body 1 through the fixing rod 17 due to its elastic force, thereby fixing the sliding ring 4 and making the position of the sliding ring 4 on the tube body 1 more stable. This prevents the sliding ring 4 from sliding on the outer wall of the tube body 1 when it is not pushed, thus improving the stability of the sliding ring 4. When the first adjusting ball 16 moves upward, the first adjusting ball 16 gradually comes into contact with the second adjusting ball 18, thereby squeezing the second adjusting ball 18 through the first adjusting ball 16. This causes the fixing rod 17 to slide away from the tube body 1, and the second spring 19 is gradually compressed, releasing the clamping of the fixing rod 17 on the tube body 1, thereby releasing the positioning of the sliding ring 4 and making it easier to push the sliding ring 4 to slide on the outer wall of the tube body 1.

[0048] The working principle of this utility model is as follows: When it is necessary to place tube 1 in a test tube rack, the bottom of tube 1 can be inserted into the test tube rack. If the diameter of the test tube rack slot is larger than the diameter of tube 1, the sliding ring 4 can be pushed upward to apply an upward force to the lower hinge rod 6. This causes the sliding ring 4 to gradually push the lower hinge rod 6 and the upper hinge rod 5. The ends of the lower hinge rod 6 and the upper hinge rod 5 that are hinged to each other gradually move away from tube 1, and the lower hinge rod 6 and the upper hinge rod 5 gradually form an angle that protrudes outward from tube 1. Thus, by protruding outward from the angle formed by the upper hinge rod 5 and the lower hinge rod 6, tube 1 is placed in the slot of the test tube rack. In this way, tube 1 can be placed in the slots of test tube racks with different diameters, so that the types of test tube racks that tube 1 can be placed in are no longer limited.

[0049] Before pushing the sliding ring 4 upward, the sliding sleeve 12 can be pressed to make the sliding sleeve 12 slide upward along the slide rod 11. At this time, the first spring 13 is compressed, and the sliding sleeve 12 drives the adjusting rod 15 and the first adjusting ball 16 to move upward, so that the first adjusting ball 16 gradually contacts the second adjusting ball 18 and squeezes the second adjusting ball 18. During the squeezing process, the second adjusting ball 18 drives the fixing rod 17 to move away from the tube body 1. At this time, the outer wall of the fixing rod 17 slides inside the slide rod 11, and the second spring 19 is compressed, thereby releasing the clamping of the two fixing rods 17 on the outer wall of the tube body 1, and thus releasing the positioning of the sliding ring 4, making it easier to push the sliding ring 4 to slide on the outer wall of the tube body 1.

[0050] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model shall be implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A special centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei, characterized in that: The tube includes a tube body (1), a tube cap (2) is threaded to the top of the tube body (1), an installation ring (3) is fixedly installed on the outer wall of the tube body (1) near the top, a sliding ring (4) is damped and slidably connected to the outer wall of the tube cap (2) below the installation ring (3), four upper hinge rods (5) are hinged at equal intervals at the bottom of the installation ring (3) near the outer edge, and a lower hinge rod (6) is hinged at the top of the sliding ring (4) at the position corresponding to the upper hinge rods (5), and a hinge assembly is provided between the corresponding upper hinge rods (5) and lower hinge rods (6), and the opposite ends of the upper hinge rods (5) and lower hinge rods (6) are hinged to each other through the hinge assembly.

2. The centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei according to claim 1, characterized in that: The hinge assembly includes a connecting block (7), which is fixedly disposed at one end of the lower hinge rod (6) near the upper hinge rod (5). Hinge pieces (9) are symmetrically fixedly disposed on both sides of the upper hinge rod (5) near the lower hinge rod (6). A hinge post (8) is fixedly disposed between the two hinge pieces (9). The hinge post (8) penetrates the interior of the connecting block (7) and is rotatably connected to the connecting block (7).

3. The centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei according to claim 1, characterized in that: The sliding ring (4) has two symmetrical cavities (10) located near the bottom.

4. The centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei according to claim 3, characterized in that: A sliding rod (11) is fixedly installed at the top inside the cavity (10). A sliding sleeve (12) is slidably connected to the bottom of the outer wall of the sliding rod (11). A first spring (13) is installed at the top of the sliding sleeve (12) outside the sliding rod (11). The top of the first spring (13) is fixedly connected to the outer wall of the sliding rod (11). An adjustment component is fixedly installed at the top position on the outer side of the sliding sleeve (12). An auxiliary fixing component is slidably connected at the top position inside the sliding rod (11). The bottom of the sliding sleeve (12) extends to the outside of the sliding ring (4) and is slidably connected to the sliding ring (4).

5. The centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei according to claim 4, characterized in that: The outer wall of the slide rod (11) is fixedly provided with a limiting ring (14) at the top of the first spring (13). The top of the first spring (13) is fixedly connected to the bottom of the limiting ring (14), and the top of the first spring (13) is fixedly connected to the outer wall of the slide rod (11) through the limiting ring (14).

6. The centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei according to claim 4, characterized in that: The adjustment assembly includes an adjustment rod (15), which is fixedly connected to the outer wall of the sliding sleeve (12) near the top. The adjustment rod (15) has an "L" shaped structure, and a first adjustment ball (16) is fixedly provided on the top of the adjustment rod (15). The first adjustment ball (16) has a hemispherical structure.

7. The centrifuge tube kit for nucleic acid extraction from Litopenaeus vannamei according to claim 6, characterized in that: The auxiliary retaining assembly includes a retaining rod (17), which is slidably connected to the inside of the slide rod (11) near the top. Both ends of the retaining rod (17) extend to the outside of the slide rod (11), and the end of the retaining rod (17) near the tube body (1) extends to the outside of the sliding ring (4) to clamp the outer wall of the sliding ring (4). The end of the retaining rod (17) away from the tube body (1) is bent downward and fixedly provided with a second adjusting ball (18). The second adjusting ball (18) has a hemispherical structure, and the arc surface of the second adjusting ball (18) is opposite to the arc surface of the first adjusting ball (16). The outer wall of the retaining rod (17) is provided with a second spring (19). One end of the second spring (19) is fixedly connected to the outer wall of the slide rod (11), and the inner wall of the other end of the second spring (19) is fixedly connected to the outer wall of the retaining rod (17).

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