An ultra-low temperature sampling system that is easy to operate

Abstract

The utility model discloses a super low temperature sampling system convenient to operation, it includes the sample storage box and is connected on the sample storage box sealed box cover, the inside installation of sample storage box has the liquid nitrogen storage inner bag, and one side of liquid nitrogen storage inner bag upper portion is penetrated and is rotatably installed with the adjusting shaft, and the other side of liquid nitrogen storage inner bag upper portion is penetrated and is rotatably installed with the plug cylinder, and the opposite end between liquid nitrogen storage inner bag inside of adjusting shaft and plug cylinder is fixedly installed with the rectangular cover, and the bottom fixed mounting of rectangular cover has the storage box, and the inside of storage box is equidistant and is provided with a plurality of storage boxes, and the cover is rotatably installed on the storage box through the hinge, the super low temperature sampling system has the safety protection adjusting structure, and this safety protection adjusting structure can make the operator not contact liquid nitrogen to realize the sample storage operation, thereby avoiding the volatilization and waste of liquid nitrogen, and avoiding the security risk that liquid nitrogen brings to the staff.

Description

Technical Field

[0001] This utility model belongs to the field of sampling technology, specifically an easy-to-operate ultra-low temperature sampling system. Background Technology

[0002] Sampling is a crucial step in obtaining representative samples for subsequent analysis, especially when samples require cryopreservation. The purpose of cryopreservation is to maintain the chemical and biological activity of the sample and prevent its components from degrading or deteriorating. Therefore, accuracy, speed, and minimal contamination are the core requirements of the sampling process.

[0003] Traditionally, samples are often stored directly in liquid nitrogen in a liquid nitrogen tank after sampling. However, placing the samples in a liquid nitrogen tank makes it inconvenient to handle, and handling requires opening the tank, which causes the liquid nitrogen to evaporate and become wasteful. In addition, unevaporated liquid nitrogen can easily drip during handling, posing a safety hazard to the operators. Therefore, improvements are needed to address these issues. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-operate cryogenic sampling system, comprising a sample storage box and a sealed box cover connected to the sample storage box. The sample storage box contains a liquid nitrogen storage liner. An adjusting shaft is rotatably mounted through one side of the upper part of the liquid nitrogen storage liner, and a plug cylinder is rotatably mounted through the other side of the upper part of the liquid nitrogen storage liner. A rectangular cover plate is fixedly mounted between the adjusting shaft and the plug cylinder at their opposite ends inside the liquid nitrogen storage liner. A storage box is fixedly mounted at the bottom of the rectangular cover plate. Several storage compartments are equidistantly opened inside the storage box, and a cover plate is rotatably mounted on the storage box via a hinge.

[0005] Preferably, both the sample storage box and the sealed box cover are provided with an insulation layer inside, and the surface of the liquid nitrogen storage liner is provided with a vacuum layer.

[0006] Preferably, a square groove is provided on the upper part of one side of the sample storage box. An adjusting tube that extends movably into the sample storage box is rotatably installed inside the square groove. One end of the adjusting tube is fixedly connected to one end of the adjusting shaft. A square convex inner groove communicating with the square groove is provided in the middle of the adjusting tube. A T-shaped pin is movably inserted into the square convex inner groove. One end of the T-shaped pin extends into the square groove and is fixedly installed with a square rotating block that matches the square groove.

[0007] Preferably, the square rotating block is made of iron, and two magnets that are magnetically attracted and connected to the square rotating block are symmetrically installed inside the square groove, and a pointer is provided on one side of the square rotating block.

[0008] Preferably, the rectangular cover plate has grooves between its four sides, an airbag ring is installed inside the grooves, and an air pipe connecting the airbag ring and the cylinder is installed inside the rectangular cover plate.

[0009] Preferably, a square groove II is provided on the upper part of the other side of the sample storage box surface. One end of the plug cylinder is threadedly connected to a threaded rod. The end of the threaded rod located inside the plug cylinder is rotatably connected to a compression piston. The other end of the threaded rod extends movably into the interior of the square groove II and is fixedly connected to a rotating wheel.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This ultra-low temperature sampling system has a safety protection adjustment structure, which enables operators to perform sample storage operations without contacting liquid nitrogen, thereby avoiding the volatilization and waste of liquid nitrogen, as well as avoiding the safety hazards that liquid nitrogen may bring to the staff, improving the safety of sampling and storage. In addition, this safety protection adjustment structure is simple in design, convenient to use and operate, and stable and reliable in adjustment, protection and sample storage. Its performance can meet the needs of ultra-low temperature sampling.

[0011] When it is necessary to place the sample inside the storage compartment, and before opening the sealed box lid, the rectangular cover plate should be flipped and adjusted. During adjustment, by pulling the square rotating block, the square rotating block is separated from the two magnets and moved out of the square groove. The movement of the square rotating block will drive the T-pin to move. Then, the square rotating block rotates the T-pin, and the rotation of the T-pin will drive the adjusting tube and adjusting shaft to rotate. At the same time, through the rotatable plug cylinder, the rectangular cover plate can be effectively flipped and adjusted, so that the storage box faces upward from the inside of the liquid nitrogen storage liner. At this time, the rectangular cover plate still seals the liquid nitrogen storage liner, and the indicator arrow points upward.

[0012] Then open the sealed box lid, place the sample inside the storage compartment and cover it with the lid for protection, then close the sealed box lid, then flip and rotate the square rotating block to adjust and flip the storage box so that it is stored at ultra-low temperature through the liquid nitrogen inside the liquid nitrogen storage liner; then push the square rotating block to move it into the square groove one and magnetically attract it to the two magnets, at which point the indicator arrow is pointing downwards. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a cross-sectional view of the easy-to-operate cryogenic sampling system of this utility model;

[0016] Figure 2 This utility model Figure 1 A partial structural diagram;

[0017] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0018] Figure 4 This utility model Figure 2 A magnified structural diagram at point B;

[0019] In the diagram: 1. Sample storage box; 101. Insulation layer; 2. Sealed box lid; 3. Liquid nitrogen storage liner; 301. Vacuum layer; 4. Adjusting shaft; 5. Cylinder; 6. Rectangular cover plate; 7. Storage box; 8. Storage compartment; 9. Cover plate; 10. Vacuum layer; 11. Adjusting pipe; 12. T-pin; 13. Square rotating block; 14. Magnet; 15. Indicator; 16. Groove; 17. Airbag ring; 18. Air pipe; 19. Square groove II; 20. Threaded rod; 21. Extrusion piston; 22. Rotary wheel. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1 to 4 The present invention includes a sample storage box 1 and a sealing box cover 2 connected to the sample storage box 1. The sealing box cover 2 is rotatably connected to the sample storage box 1 via a hinge, and the sealing box cover 2 is connected to the sample storage box 1 by a fixed lock. A liquid nitrogen storage liner 3 is installed inside the sample storage box 1. The opening at the top of the liquid nitrogen storage liner 3 is a rectangular structure. Both the sample storage box 1 and the sealing box cover 2 are provided with a heat insulation layer 101. A vacuum layer 301 is provided on the surface of the liquid nitrogen storage liner 3. The vacuum layer 301 is located between the liquid nitrogen storage liner 3 and the heat insulation layer 101, thereby effectively playing a heat preservation role.

[0022] An adjusting shaft 4 is rotatably mounted through one side of the upper part of the liquid nitrogen storage liner 3, and a plug cylinder 5 is rotatably mounted through the other side of the upper part of the liquid nitrogen storage liner 3. The adjusting shaft 4 and the plug cylinder 5 are coaxially arranged. A rectangular cover plate 6 is fixedly installed between the opposite ends of the adjusting shaft 4 and the plug cylinder 5 inside the liquid nitrogen storage liner 3. A storage box 7 is fixedly installed at the bottom of the rectangular cover plate 6. Several storage compartments 8 are evenly spaced inside the storage box 7. A cover plate 9 is rotatably mounted on the storage box 7 via a hinge. A fixing latch is installed between the cover plate 9 and the storage box 7.

[0023] A square groove 10 is provided on the upper part of one side of the sample storage box 1. An adjusting tube 11 is rotatably installed inside the square groove 10 and extends into the sample storage box 1. One end of the adjusting tube 11 is fixedly connected to one end of the adjusting shaft 4. A square convex inner groove communicating with the square groove 10 is provided in the middle of the adjusting tube 11. A T-shaped pin 12 is movably inserted into the square convex inner groove. One end of the T-shaped pin 12 extends into the square groove 10 and is fixedly installed with a square rotating block 13 that matches the square groove 10. This allows the rectangular cover plate 6 to be rotated effectively, so that the storage box 7 can be rotated out from the liquid nitrogen storage liner 3 for convenient sample storage. The square rotating block 13 is made of iron. Two magnets 14 are symmetrically installed inside the square groove 10 and are magnetically attracted to the square rotating block 13. An index 15 is provided on one side of the square rotating block 13, which ensures the stability after adjustment and allows for accurate adjustment.

[0024] Specifically, as shown in the attached diagram, when it is necessary to place the sample inside the storage compartment 8, and before opening the sealing box cover 2, the rectangular cover 6 should be flipped and adjusted.

[0025] During adjustment, by pulling the square rotating block 13, the square rotating block 13 is separated from the two magnets 14 and moved out of the square groove 10. The movement of the square rotating block 13 will drive the T-pin 12 to move. Then, the square rotating block 13 rotates the T-pin 12. The rotation of the T-pin 12 will drive the adjusting tube 11 and the adjusting shaft 4 to rotate. At the same time, through the rotatable plug cylinder 5, the rectangular cover plate 6 can be effectively flipped 180 degrees, so that the storage box 7 faces upward from the inside of the liquid nitrogen storage liner 3. At this time, the rectangular cover plate 6 still seals the liquid nitrogen storage liner 3, and the arrow of the indicator 15 points upward.

[0026] Then open the sealed box cover 2, place the sample inside the storage compartment 8 and cover it with the cover plate 9 for protection, then close the sealed box cover 2, then flip and rotate the square rotating block 13 to adjust and flip the storage box 7 so that it can be stored at ultra-low temperature through the liquid nitrogen inside the liquid nitrogen storage liner 3; then push the square rotating block 13 to move it into the square groove 10 and magnetically attract it with the two magnets 14, at which point the arrow of the pointer 15 is pointing downwards.

[0027] A groove 16 is provided between the four sides of the rectangular cover plate 6. An airbag ring 17 is installed inside the groove 16. An air pipe 18 connecting the airbag ring 17 and the cylinder 5 is installed inside the rectangular cover plate 6. A square groove 29 is provided on the upper part of the other side of the sample storage box 1. A threaded rod 20 is threaded to one end of the cylinder 5. The end of the threaded rod 20 located inside the cylinder 5 is rotatably connected to a compression piston 21. The other end of the threaded rod 20 extends into the square groove 29 and is fixedly connected to a rotating wheel 22, thereby effectively ensuring the tightness of the seal between the rectangular cover plate 6 and the liquid nitrogen storage liner 3.

[0028] Specifically, when the storage box 7 is adjusted and flipped to be inside the liquid nitrogen storage liner 3, and the square rotating block 13 is locked inside the square groove 10, the rotating wheel 22 is rotated to drive the threaded rod 20 to rotate and move into the piston cylinder 5. The movement of the threaded rod 20 will drive the extrusion piston 21 to move inside the piston cylinder 5, thereby extruding the contents of the piston cylinder 5 into the airbag ring 17, causing the airbag ring 17 to expand and contact the liquid nitrogen storage liner 3, thus effectively ensuring a tight seal.

[0029] This cryogenic sampling system features a safety protection and adjustment structure that allows operators to store samples without contacting liquid nitrogen. This avoids the evaporation and waste of liquid nitrogen, as well as the safety hazards it poses to staff, thus improving the safety of sampling and storage. Furthermore, the safety protection and adjustment structure is simple in design, convenient to use and operate, and provides stable and reliable adjustment, protection, and sample storage. Its performance meets the requirements for cryogenic sampling.

Claims

1. An easy-to-operate cryogenic sampling system, comprising a sample storage box (1) and a sealed box cover (2) connected to the sample storage box (1), characterized in that: The sample storage box (1) is equipped with a liquid nitrogen storage liner (3). An adjusting shaft (4) is rotatably installed through one side of the upper part of the liquid nitrogen storage liner (3), and a plug cylinder (5) is rotatably installed through the other side of the upper part of the liquid nitrogen storage liner (3). A rectangular cover plate (6) is fixedly installed between the opposite ends of the adjusting shaft (4) and the plug cylinder (5) inside the liquid nitrogen storage liner (3). A storage box (7) is fixedly installed at the bottom of the rectangular cover plate (6). Several storage compartments (8) are opened at equal intervals inside the storage box (7). A cover plate (9) is rotatably installed on the storage box (7) by a hinge.

2. The easy-to-operate cryogenic sampling system according to claim 1, characterized in that: The sample storage box (1) and the sealed box cover (2) are both equipped with a heat insulation layer (101), and the surface of the liquid nitrogen storage liner (3) is equipped with a vacuum layer (301).

3. The easy-to-operate cryogenic sampling system according to claim 1, characterized in that: A square groove (10) is provided on the upper part of one side of the sample storage box (1). An adjusting tube (11) that extends into the sample storage box (1) is rotatably installed inside the square groove (10). One end of the adjusting tube (11) is fixedly connected to one end of the adjusting shaft (4). A square convex inner groove communicating with the square groove (10) is provided in the middle of the adjusting tube (11). A T-shaped pin (12) is movably inserted into the square convex inner groove. One end of the T-shaped pin (12) extends into the square groove (10) and is fixedly installed with a square rotating block (13) that matches the square groove (10).

4. The easy-to-operate cryogenic sampling system according to claim 3, characterized in that: The square rotating block (13) is made of iron. Two magnets (14) are symmetrically installed inside the square groove (10) and magnetically attracted to the square rotating block (13). A pointer (15) is provided on one side of the square rotating block (13).

5. The easy-to-operate cryogenic sampling system according to claim 4, characterized in that: The rectangular cover plate (6) has a groove (16) between its four sides. An airbag ring (17) is installed inside the groove (16). An air pipe (18) connecting the airbag ring (17) and the cylinder (5) is installed inside the rectangular cover plate (6).

6. The easy-to-operate cryogenic sampling system according to claim 5, characterized in that: The upper part of the other side of the sample storage box (1) is provided with a square groove two (19). One end of the plug cylinder (5) is threadedly connected to a threaded rod (20). The end of the threaded rod (20) located inside the plug cylinder (5) is rotatably connected to a compression piston (21). The other end of the threaded rod (20) extends movably into the interior of the square groove two (19) and is fixedly connected to a rotating wheel (22).

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