Liquid nitrogen cryopreservation tank for cryogenic access

Abstract

The utility model relates to the technical field of liquid nitrogen tanks, and discloses a liquid nitrogen cryopreservation tank for cryogenic access, which comprises a tank body, and the right side of the tank body is connected with a support; the sample storage rack is inserted into the freezing rack; the sliding block is rotationally connected to the exterior of the lead screw, the top end of the rotating shaft is coaxially connected with the bottom end of a rotor of a third motor, the bottom end of the rotating shaft penetrates through the interior of a polygonal frame, the bottom end of the polygonal frame is coaxially connected with a transmission disc, and an arc-shaped groove is formed in the interior of the transmission disc in the circumferential direction; and the clamping plate is inserted into the polygonal frame, and a circular groove is formed in the lower side of the inner wall of the ring base. According to the liquid nitrogen cryopreservation tank for deep hypothermia access, a second motor drives a lead screw to rotate, so that a sliding block can drive a connecting column to move up and down, the connecting column is inserted into a ring seat, then a third motor drives a transmission disc to rotate, and a plug pin and a clamping plate synchronously expand outwards under the action of an arc-shaped groove; and the problem of shaking or collision of the sample test tubes during storage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of liquid nitrogen tank technology, specifically a liquid nitrogen cryopreservation tank for cryogenic storage and retrieval. Background Technology

[0002] In many fields such as modern scientific research, medicine, bioengineering, and animal husbandry, the long-term stable preservation of biological samples is crucial. Deep cryopreservation technology has emerged to address this need, and liquid nitrogen cryopreservation tanks are the key equipment for realizing this technology.

[0003] Common liquid nitrogen cryopreservation tanks are the main type of cryopreservation tubes and cryopreservation racks for storing biological samples. Usually, a rack is set up inside the liquid nitrogen tank, and then the cryopreservation rack is placed on the rack, and the cryopreservation box is placed on the rack. However, this method requires the use of a basket to place the biological sample rack on the surface of the cryopreservation rack when storing biological samples. This causes the samples to shake during storage, which can easily damage the samples during storage and retrieval. This method cannot meet the working requirements of liquid nitrogen tanks. Therefore, a liquid nitrogen cryopreservation tank for cryogenic storage is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a liquid nitrogen cryopreservation tank for cryogenic storage, which solves the technical problem that the biological sample racks need to be placed on the surface of the cryopreservation racks using a basket when storing biological samples, which causes the samples to shake during the storage process.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a liquid nitrogen cryopreservation tank for cryogenic storage, comprising:

[0008] The tank body has a support connected to its right side, a first motor installed at the top center of the tank body, and a freezing rack inserted into the bottom of the inner cavity of the tank body via a bearing.

[0009] A sample storage rack is inserted inside a freezing rack. A storage opening is provided on the top right side of the tank. A ring seat is installed at the top of the sample storage rack. A second motor is installed at the top of the support. A lead screw is coaxially connected to the top of the rotor of the second motor.

[0010] A slider is screwed onto the outside of a lead screw. A connecting post is installed at the outer end of the slider. A third motor is installed at the top of the connecting post. A polygonal frame is connected to the bottom end of the connecting post.

[0011] A rotating shaft is inserted in the middle of the connecting column. The top end of the rotating shaft is coaxially connected to the bottom end of the rotor of the third motor. The bottom end of the rotating shaft passes through the interior of the polygonal frame. A transmission disk is coaxially connected to the bottom end of the polygonal frame, and an arc-shaped groove is opened in the circumferential direction inside the transmission disk.

[0012] The card plate is inserted inside the polygonal frame. Each arc-shaped groove has a pin inserted inside. The top of each pin is connected to the bottom of the card plate. A circular groove is opened on the lower side of the inner wall of the ring seat.

[0013] Preferably, a sealing cap is inserted inside the storage opening, and the bottom end of the rotor of the first motor is coaxially connected to the top of the freezer rack at the corresponding position. The sealing cap improves the airtightness of the tank.

[0014] Preferably, limiting rods are inserted on both the left and right sides of the opening of the sample storage rack, and limiting holes are opened on both the left and right sides of the bottom of the sample storage rack. Limiting pins are connected to the top of the slot of the freezing rack at the positions corresponding to the limiting holes. Through the opening of the limiting holes and limiting pins, the sample storage rack can be more stable when stored in the slot of the freezing rack.

[0015] Preferably, the top of the support is connected to strips on both sides of the second motor. Each strip has a groove, and each groove has a movable block inserted inside. Both sides of the slider are connected to the corresponding positions of the movable blocks. The added movable blocks improve the stability of the slider when it moves up and down.

[0016] Preferably, a limiting disk is coaxially mounted on the top end of the lead screw, and the length of the lead screw is twice the length of the sample storage rack, so that the slider can completely bring out the sample storage rack.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a liquid nitrogen cryogenic storage tank for deep cryogenic storage, which has the following beneficial effects:

[0019] This cryogenic liquid nitrogen cryopreservation tank utilizes a first motor to rotate the freezing rack, allowing the sample storage rack to be placed inside. A second motor drives a lead screw, which in turn moves a connecting column up and down via a slider, inserting the connecting column into a ring seat. A third motor then rotates a transmission disc, causing a pin and a locking plate to expand synchronously under the action of an arc-shaped groove. This allows the locking plate to insert into a circular groove, enabling the sample storage rack to move up and down during the connecting column's movement. This design prevents sample tubes from shaking or colliding during storage, ensuring smooth lifting and lowering of the sample storage rack and preventing damage to the sample tubes during handling. This enhances the safety and convenience of using the liquid nitrogen cryopreservation tank. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the tank body of this utility model;

[0022] Figure 3 This is a schematic diagram of the sample storage rack and ring seat structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the top structure of the support of this utility model;

[0024] Figure 5 This is a schematic diagram of the limiting insertion hole and limiting pin structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the connecting column structure of this utility model;

[0026] Figure 7 This is a schematic cross-sectional view of the connecting column of this utility model;

[0027] Figure 8 This is a bottom view of the transmission disc structure of this utility model;

[0028] Figure 9 This is a schematic diagram of the slide groove and slider structure of this utility model.

[0029] In the diagram: 1. Tank body; 2. Support; 3. First motor; 4. Freezing rack; 5. Sample storage rack; 6. Storage opening; 7. Sealing cap; 8. Second motor; 9. Ring seat; 10. Circular groove; 11. Lead screw; 12. Slider; 13. Connecting column; 14. Third motor; 15. Polygonal frame; 16. Rotating shaft; 17. Transmission disc; 18. Arc groove; 19. Clamping plate; 20. Pin; 21. Limiting hole; 22. Limiting pin; 23. Limiting rod; 24. Strip plate; 25. Limiting disc; 26. Slide groove; 27. Moving block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0031] This utility model provides a technical solution: a liquid nitrogen cryogenic storage tank for cryogenic storage, comprising a tank body 1, a support 2, a first motor 3, a freezing rack 4, a sample storage rack 5, a storage opening 6, a sealing cap 7, a second motor 8, a ring seat 9, a circular groove 10, a lead screw 11, a slider 12, a connecting column 13, a third motor 14, a polygonal frame 15, a rotating shaft 16, a transmission disc 17, an arc groove 18, a clamping plate 19, a pin 20, a limiting insertion hole 21, a limiting pin 22, a limiting insertion rod 23, a strip 24, a limiting disc 25, a sliding groove 26, and a moving block 27.

[0032] Please see Figure 1 Tank 1, with a support 2 connected to the right side of tank 1, and a first motor 3 installed at the top center of tank 1. Please refer to [link / reference]. Figure 2 A freezing rack 4 is inserted into the bottom of the inner cavity of tank 1 via a bearing;

[0033] The sample storage rack 5 is inserted inside the freezer rack 4. A storage opening 6 is located on the top right side of the container 1. Please refer to [link / reference]. Figure 3 The top of the sample storage rack 5 is equipped with a ring seat 9. Please refer to [link / reference]. Figure 1 The second motor 8 is mounted on the top of support 2. Please refer to [link / reference]. Figure 4 The rotor top of the second motor 8 is coaxially connected to a lead screw 11. Please refer to [link / reference]. Figure 1 A sealing cap 7 is inserted inside the storage opening 6, and the bottom end of the rotor of the first motor 3 is coaxially connected to the top of the freezer rack 4 at the corresponding position.

[0034] Please see Figure 4 Slider 12 is screwed onto the outside of lead screw 11. Please refer to [link / reference]. Figure 6 A connecting post 13 is installed at the outer end of the slider 12, a third motor 14 is installed at the top of the connecting post 13, and a polygonal frame 15 is connected to the bottom end of the connecting post 13.

[0035] Please see Figure 7 and Figure 8The rotating shaft 16 is inserted in the middle of the connecting column 13. The top end of the rotating shaft 16 is coaxially connected to the bottom end of the rotor of the third motor 14. The bottom end of the rotating shaft 16 passes through the interior of the polygon frame 15. The bottom end of the polygon frame 15 is coaxially connected to the transmission disk 17, and the transmission disk 17 has an arc groove 18 circumferentially opened inside.

[0036] The card plate 19 is inserted inside the polygonal frame 15. Pins 20 are inserted into the arc-shaped grooves 18, and the tops of the pins 20 are connected to the bottom of the card plate 19. Please refer to [link / reference]. Figure 3 A circular groove 10 is provided on the lower inner wall of the ring seat 9. The first motor 3 drives the rotation of the freezing rack 4, allowing the sample storage rack 5 to be placed inside the freezing rack 4. A second motor 8 drives the rotation of the lead screw 11, which in turn drives the sliding block 12 to move the connecting column 13 up and down, inserting the connecting column 13 into the ring seat 9. Then, a third motor 14 drives the rotation of the transmission disc 17, causing the pin 20 and the locking plate 19 to expand synchronously under the action of the arc groove 18, thus inserting the locking plate 19 into the circular groove 10. This allows the sample storage rack 5 to move up and down during the movement of the connecting column 13, facilitating storage and retrieval operations. This prevents the sample tubes inside the sample storage rack 5 from shaking or colliding during storage, ensuring smooth lifting and lowering of the sample storage rack 5 during storage and retrieval, preventing damage to the sample tubes, and improving the safety and convenience of using the liquid nitrogen cryogenic storage tank. Limiting rods 23 are inserted on both the left and right sides of the opening of the sample storage rack 5. Please refer to [link / reference]. Figure 5 The sample storage rack 5 has limit holes 21 on both the left and right sides of its bottom. Limit pins 22 are connected to the top of the slots of the freezing rack 4 at positions corresponding to the limit holes 21. Please refer to [link / reference]. Figure 4 The top of the support 2 is connected to strips 24 on both sides of the second motor 8. Please refer to [link / reference]. Figure 9 The inside of each strip 24 is provided with a sliding groove 26, and each sliding groove 26 is provided with a moving block 27. Both sides of the slider 12 are connected to the corresponding positions of the moving block 27. The top of the lead screw 11 is coaxially mounted with a limiting disk 25. The length of the lead screw 11 is twice the length of the sample storage rack 5.

[0037] This design uses a first motor 3 to drive the rotation of the freezing rack 4, allowing the sample storage rack 5 to be placed inside the freezing rack 4. A second motor 8 drives the rotation of the lead screw 11, which in turn drives the connecting column 13 to move up and down via the slider 12, inserting the connecting column 13 into the ring seat 9. Then, a third motor 14 drives the rotation of the transmission disk 17, causing the pin 20 and the locking plate 19 to expand synchronously under the action of the arc groove 18, thus inserting the locking plate 19 into the circular groove 10. This allows the sample storage rack 5 to move up and down during the movement of the connecting column 13, facilitating storage and retrieval operations. This avoids shaking or collision of the sample tubes inside the sample storage rack 5 during storage, ensuring smooth lifting and lowering of the sample storage rack 5 during storage and retrieval, preventing damage to the sample tubes, and improving the safety and convenience of using the liquid nitrogen cryopreservation tank.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen cryopreservation container for cryogenic storage, characterized in that, include: Tank (1), a support (2) is connected to the right side of the tank (1), a first motor (3) is installed at the middle of the top of the tank (1), and a freezing rack (4) is inserted into the bottom of the inner cavity of the tank (1) through a bearing; The sample storage rack (5) is inserted inside the freezer rack (4). The top right side of the tank (1) has a storage opening (6). The top of the sample storage rack (5) is equipped with a ring seat (9). The top of the support (2) is equipped with a second motor (8). The rotor top of the second motor (8) is coaxially connected with a lead screw (11). A slider (12) is screwed to the outside of a lead screw (11). A connecting column (13) is installed at the outer end of the slider (12). A third motor (14) is installed at the top of the connecting column (13). A polygonal frame (15) is connected to the bottom end of the connecting column (13). A rotating shaft (16) is inserted in the middle of the connecting column (13). The top end of the rotating shaft (16) is coaxially connected to the bottom end of the rotor of the third motor (14). The bottom end of the rotating shaft (16) passes through the interior of the polygonal frame (15). The bottom end of the polygonal frame (15) is coaxially connected to a transmission disk (17), and the transmission disk (17) has an arc-shaped groove (18) circumferentially opened inside. The card plate (19) is inserted inside the polygonal frame (15). The arc groove (18) is filled with a pin (20). The top of the pin (20) is connected to the bottom of the card plate (19). The inner wall of the ring seat (9) is provided with a circular groove (10).

2. The liquid nitrogen cryogenic storage tank for cryogenic storage according to claim 1, characterized in that: A sealing cap (7) is inserted inside the storage port (6), and the bottom end of the rotor of the first motor (3) is coaxially connected to the top of the freezer rack (4).

3. The liquid nitrogen cryogenic storage tank for cryogenic storage according to claim 1, characterized in that: Limiting rods (23) are inserted into the left and right sides of the opening of the sample storage rack (5). Limiting holes (21) are opened on the left and right sides of the bottom of the sample storage rack (5). Limiting pins (22) are connected to the top of the slot of the freezing rack (4) at the position corresponding to the limiting holes (21).

4. The liquid nitrogen cryogenic storage tank for cryogenic storage according to claim 1, characterized in that: The top of the support (2) is connected to strips (24) on both sides of the second motor (8). Each strip (24) has a groove (26) inside. Each groove (26) has a moving block (27) inserted inside. Both sides of the slider (12) are connected to the corresponding positions of the moving block (27).

5. A liquid nitrogen cryogenic storage tank for cryogenic storage according to claim 1, characterized in that: The top end of the lead screw (11) is coaxially mounted with a limiting disk (25), and the length of the lead screw (11) is twice the length of the sample storage rack (5).

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