Device for quickly freezing cells in liquid nitrogen steam

Abstract

The utility model relates to the field of rapid cell freezing devices, in particular to a device for rapidly freezing cells in liquid nitrogen steam, which comprises a cabinet body, an atomizer is bolted to the right side of an inner cavity of the cabinet body, a rotating shaft is rotatably connected to the middle of the bottom of the inner cavity of the cabinet body through a bearing, and a shell is bolted to the top of the rotating shaft. The device comprises a shell, a separation ring is bolted to the middle of an inner cavity of the shell, limiting grooves are annularly formed in the outer side of the separation ring and the outer side of the shell, folding rods are slidably connected to the inner sides of the limiting grooves, mounting grooves are formed in the inner sides of the inner cavity of the shell, and springs are bolted to the bottoms of the mounting grooves. Through the cabinet body, the rotating shaft, the shell, the separating ring, the limiting groove, the folding rod and the like, the folding rod at the upper part is pushed upwards through the elastic force of the spring to limit and fix the storage grooves again, so that a user can conveniently, synchronously and quickly take out a plurality of storage grooves for storing cells in the mounting seat, and the charging and discharging efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of rapid cell freezing devices, in particular to a device for rapid cell freezing in liquid nitrogen vapor. Background Art

[0002] During the research and development of cells, it is often necessary to freeze the cells. In the process of freezing the cells, the cells need to be placed in the cooling chamber of a programmed cooling instrument for low-temperature freezing. In addition, in order to facilitate the orderly placement of cells in the cooling chamber, the cells are usually stored in cell freezing boxes, and then the cell freezing boxes storing the cells are placed in the cooling chamber of the programmed cooling instrument, and the temperature of the cooling chamber is gradually lowered by liquid nitrogen to achieve freezing of the cells; further, in order to avoid the disorderly stacking of multiple cell freezing boxes in the cooling chamber of the programmed cooling instrument, the prior art uses a placement rack to place the cell freezing boxes, and then the placement rack with multiple cell freezing boxes is placed in the cooling chamber of the programmed cooling instrument for freezing. Although the existing placement rack can store multiple cell freezing boxes, after the placement rack is placed in the cooling chamber, during the freezing process, liquid nitrogen vapor is blown to the placement rack by a fan installed in the cooling chamber.

[0003] However, the position of the rack remains unchanged. The side of the rack facing the fan and the other sides of the rack are in contact with the liquid nitrogen vapor differently. As a result, the cell freezing boxes placed on the rack cannot be evenly exposed to the liquid nitrogen vapor in the freezing chamber, and the storage cannot be evenly cooled, which affects the cell freezing effect.

[0004] Therefore, it is necessary to invent a device for rapidly freezing cells in liquid nitrogen vapor to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a device for rapidly freezing cells in liquid nitrogen vapor, which can effectively solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a device for quickly freezing cells in liquid nitrogen vapor, comprising a cabinet body, a nebulizer bolted to the right side of the cabinet body cavity, a rotating shaft rotatably connected to the middle of the bottom of the cabinet body cavity through a bearing, a shell bolted to the top of the rotating shaft, a separation ring bolted to the middle of the shell body cavity, a limiting groove arranged in an annular manner on the outer sides of the separation ring and the shell, a folding rod slidably connected to the inner side of the limiting groove, a mounting groove is provided on the inner side of the shell body cavity, a spring is bolted to the bottom of the mounting groove, the top of the spring is bolted to the bottom of the folding rod, a threaded groove is provided on the inner side of the separation ring, a pressure plate is slidably connected to the inner side of the limiting groove, and a rotating ring is bolted to the top of the pressure plate, a threaded sleeve is bolted to the inner side of the rotating ring, and the outer side of the threaded sleeve is threadedly connected to the inner side of the threaded groove, a trapezoidal block is bolted to the outer ring of the shell, a mounting seat is bolted to the left side of the trapezoidal block, and a storage slot is slidably connected to the inner side of the mounting seat.

[0007] Preferably, a folding groove is provided on the front side of the storage slot, and the inner side of the folding groove is slidably connected to the other end of the folding rod, so that the folding rod limits and fixes the storage slot in the folding groove. When the storage slot needs to be taken out, the folding rod is pushed to move to the bottom of the folding groove to detach the storage slot from the storage slot.

[0008] Preferably, a tube insertion groove is arranged on the inner side of the storage groove, and a slide bar is bolted to the other side of the storage groove, and the surface of the slide bar is slidably connected to the inner side of the mounting seat, so that the cell test tube to be frozen can be quickly placed in the storage groove through the tube insertion groove, and the movement of the storage groove is limited by the slide bar.

[0009] Preferably, a servo motor is bolted to the upper part of the cabinet body cavity, and a driving rod is connected to the inner ring sliding connection of the rotating ring. The top of the driving rod is bolted to a rotating rod, and the top of the rotating rod is bolted to the output end of the servo motor, so that the servo motor serves as a driving source to drive the rotating rod to rotate. During the rotation process, the rotating rod synchronously drives the driving rod at the bottom to rotate, and the driving rod drives the rotating ring to rotate, and rotates vertically on the surface of the spiral groove through the inner threaded sleeve.

[0010] Preferably, a stepper motor is bolted to the bottom of the cabinet cavity, and an output end of the stepper motor is bolted to the bottom of the rotating shaft, so that the stepper motor drives the rotating shaft to rotate in the cabinet cavity.

[0011] Preferably, liquid nitrogen tanks are plugged into the front and rear of the left side of the cabinet, the bottom of the liquid nitrogen tank is connected to a delivery pipe, and the other end of the delivery pipe is connected to the atomizer, so that the liquefied liquid nitrogen in the liquid nitrogen tank is transmitted to the inside of the atomizer through the delivery pipe, and the liquid nitrogen vapor is sprayed into the middle storage tank.

[0012] Preferably, a controller is provided on the left side of the front of the cabinet, and the rotation of the servo motor and the drive motor is controlled by the controller.

[0013] Preferably, a sealing plate is hinged on the right side of the front face of the cabinet, so that the user can completely seal the cabinet through the sealing plate.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] Through the cabinet, rotating shaft, shell, separation ring, limit slot, folding rod and other components, the upper folding rod is pushed upward by the elastic force of the spring itself, and the storage slot is re-limited and fixed, which makes it convenient for users to quickly and synchronously remove the storage slots for multiple cells in the mounting seat, thereby improving the loading and unloading efficiency of the device;

[0016] Through the components such as the atomizer, rotating shaft, shell, drive motor, liquid nitrogen tank, and delivery pipe, the cell tube can rotate at a constant speed in the cabinet and evenly contact with the liquid nitrogen vapor, which is beneficial to improve the uniformity of the cooling of the liquid cells stored in the cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a front view of the overall structure of the utility model;

[0019] Figure 2 This is a front sectional view of the overall structure of the utility model;

[0020] Figure 3 This is a top view of the overall structure of the utility model;

[0021] Figure 4 This is a side view of the storage tank structure of the utility model;

[0022] Figure 5 For the utility model Figure 2 A magnified view of the structure at center A.

[0023] Description of reference numerals:

[0024] 1. Cabinet; 2. Atomizer; 3. Rotating shaft; 4. Housing; 5. Separation ring; 6. Limiting groove; 7. Folding rod; 8. Mounting groove; 9. Spring; 10. Threaded groove; 11. Pressure plate; 12. Rotating ring; 13. Threaded sleeve; 14. Trapezoidal block; 15. Mounting seat; 16. Storage slot; 17. Folding groove; 18. Insertion slot; 19. Slide; 20. Servo motor; 21. Drive rod; 22. Rotating rod; 23. Stepper motor; 24. Liquid nitrogen tank; 25. Delivery pipe; 26. Controller; 27. Sealing plate. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides Figure 1-5 The device shown is for rapidly freezing cells in liquid nitrogen vapor, comprising a cabinet 1, an atomizer 2 being bolted to the right side of the inner cavity of the cabinet 1, a rotating shaft 3 being rotatably connected to the middle of the inner cavity of the cabinet 1 through a bearing, a shell 4 being bolted to the top of the rotating shaft 3, a separation ring 5 being bolted to the middle of the inner cavity of the shell 4, a limiting groove 6 being arranged in a circular manner on the outer side of the separation ring 5 and the shell 4, a folding rod 7 being slidably connected to the inner side of the limiting groove 6, an installation groove 8 being provided on the inner side of the inner cavity of the shell 4, and a bottom of the installation groove 8 being bolted to the bottom of the installation groove 8. Spring 9, the top of the spring 9 is bolted to the bottom of the folding rod 7, the inner side of the separation ring 5 is provided with a threaded groove 10, the inner side of the limit groove 6 is slidably connected with a pressure plate 11, and the top of the pressure plate 11 is bolted with a rotating ring 12, the inner side of the rotating ring 12 is bolted with a threaded sleeve 13, and the outer side of the threaded sleeve 13 is threadedly connected to the inner side of the threaded groove 10, the outer ring of the shell 4 is bolted with a trapezoidal block 14, the left side of the trapezoidal block 14 is bolted with a mounting seat 15, and the inner side of the mounting seat 15 is slidably connected with a storage groove 16.

[0027] A folding groove 17 is provided on the front of the storage slot 16, and the inner side of the folding groove 17 is slidably connected to the other end of the folding rod 7, so that the folding rod 7 limits and fixes the storage slot 16 in the folding groove 17. When the storage slot 16 needs to be taken out, the folding rod 7 is pushed to move to the bottom of the folding groove 17 to detach the storage slot 16 from the storage slot 16.

[0028] An insertion groove 18 is arranged on the inner side of the storage groove 16, and a slide bar 19 is bolted to the other side of the storage groove 16, and the surface of the slide bar 19 is slidably connected to the inner side of the mounting seat 15, so that the cell test tube to be frozen can be quickly placed in the storage groove 16 through the insertion groove 18, and the movement of the storage groove 16 is limited by the slide bar 19.

[0029] A servo motor 20 is bolted to the upper part of the inner cavity of the cabinet 1, and a driving rod 21 is connected to the inner ring sliding connection of the rotating ring 12. The top of the driving rod 21 is bolted to a rotating rod 22, and the top of the rotating rod 22 is bolted to the output end of the servo motor 20, so that the servo motor 20 serves as a driving source to drive the rotating rod 22 to rotate. During the rotation process, the rotating rod 22 synchronously drives the driving rod 21 at the bottom to rotate. The driving rod 21 pushes the rotating ring 12 to rotate, and rotates and moves vertically on the surface of the spiral groove through the inner threaded sleeve 13.

[0030] A stepper motor 23 is bolted to the bottom of the inner cavity of the cabinet 1 , and an output end of the stepper motor 23 is bolted to the bottom of the rotating shaft 3 , so that the stepper motor 23 drives the rotating shaft 3 to rotate in the inner cavity of the cabinet 1 .

[0031] Liquid nitrogen tanks 24 are connected to the front and back of the left side of the cabinet 1. The bottom of the liquid nitrogen tank 24 is connected to a delivery pipe 25, and the other end of the delivery pipe 25 is connected to the atomizer 2, so that the liquefied liquid nitrogen in the liquid nitrogen tank 24 is transmitted to the inside of the atomizer 2 through the delivery pipe 25, and the liquid nitrogen vapor is sprayed into the middle storage tank 16.

[0032] A controller 26 is provided on the left side of the front of the cabinet 1 , and the rotation of the servo motor 20 and the drive motor is controlled by the controller 26 .

[0033] A sealing plate 27 is hinged on the right side of the front of the cabinet body 1 , so that the user can completely seal the cabinet body 1 through the sealing plate 27 .

[0034] Refer to the instruction manual Figure 1-5, working principle: through the cabinet 1, rotating shaft 3, shell 4, separation ring 5, limiting groove 6, folding rod 7 and other components, during the use of the device, first drive the servo motor 20 through the controller 26, so that the servo motor 20 drives the rotating rod 22 to rotate, so that the threaded sleeve 13 moves vertically on the inner side of the separation ring 5, and at the same time, the threaded sleeve 13 pushes the folding rod 7 downward while moving vertically, and squeezes the bottom spring 9. When the outer end of the folding rod 7 is located at the upper inner part of the folding groove 17, it can effectively fix and limit the storage groove 16. When the storage groove 16 needs to be put back into the inner side of the mounting seat 15, reverse the servo motor 20 to move the pressure plate 11 vertically upward, and through the elastic force of the spring 9 itself Push the upper folding rod 7 upward to limit and fix the storage slot 16 again, so that the user can quickly and synchronously remove the multiple storage slots 16 for storing cells in the mounting seat 15, thereby improving the loading and unloading efficiency of the device. Through the components such as the atomizer 2, the rotating shaft 3, the shell 4, the drive motor, the liquid nitrogen tank 24, and the delivery pipe 25, during use, the drive motor is first driven by the controller 26, so that the drive motor drives the shell 4 to rotate through the rotating shaft 3, so that the storage slots 16 around the shell 4 and the cell tubes in the storage slots 16 rotate in the inner cavity of the cabinet 1, so that the cell tubes can rotate at a uniform speed in the cabinet 1 and evenly contact with the liquid nitrogen vapor, which is beneficial to improve the uniformity of the refrigeration of the liquid cells stored in the cells.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for rapidly freezing cells in liquid nitrogen vapor, comprising a cabinet (1), characterized in that: The right side of the inner cavity of the cabinet (1) is bolted with an atomizer (2), the middle of the inner cavity of the cabinet (1) is rotatably connected to a rotating shaft (3) through a bearing, the top of the rotating shaft (3) is bolted to a shell (4), the middle of the inner cavity of the shell (4) is bolted with a separation ring (5), the outer sides of the separation ring (5) and the shell (4) are arranged in a circular manner to provide a limiting groove (6), the inner side of the limiting groove (6) is slidably connected to a folding rod (7), the inner side of the inner cavity of the shell (4) is provided with a mounting groove (8), the bottom of the mounting groove (8) is bolted to a spring (9), the top of the spring (9) is connected to the inner cavity of the shell (4). Bolted to the bottom of the folding rod (7), the inner side of the separation ring (5) is provided with a threaded groove (10), the inner side of the limiting groove (6) is slidably connected to a pressure plate (11), and the top of the pressure plate (11) is bolted to a rotating ring (12), the inner side of the rotating ring (12) is bolted to a threaded sleeve (13), and the outer side of the threaded sleeve (13) is threadedly connected to the inner side of the threaded groove (10), the outer ring of the shell (4) is bolted to a trapezoidal block (14), the left side of the trapezoidal block (14) is bolted to a mounting seat (15), and the inner side of the mounting seat (15) is slidably connected to a storage groove (16).

2. A device for rapidly freezing cells in liquid nitrogen vapor according to claim 1, characterized in that: A folding groove (17) is provided on the front side of the storage groove (16), and the inner side of the folding groove (17) is slidably connected to the other end of the folding rod (7).

3. The device for rapidly freezing cells in liquid nitrogen vapor according to claim 2, characterized in that: The inner side of the storage slot (16) is provided with a tube insertion slot (18), and the other side of the storage slot (16) is bolted with a slide bar (19), and the surface of the slide bar (19) is slidably connected to the inner side of the mounting seat (15).

4. The device for rapidly freezing cells in liquid nitrogen vapor according to claim 1, characterized in that: A servo motor (20) is bolted to the upper portion of the inner cavity of the cabinet (1), a driving rod (21) is slidably connected to the inner ring of the rotating ring (12), a rotating rod (22) is bolted to the top of each driving rod (21), and the top of the rotating rod (22) is bolted to the output end of the servo motor (20).

5. The device for rapidly freezing cells in liquid nitrogen vapor according to claim 1, characterized in that: A stepper motor (23) is bolted to the bottom of the inner cavity of the cabinet (1), and an output end of the stepper motor (23) is bolted to the bottom of the rotating shaft (3).

6. The device for rapidly freezing cells in liquid nitrogen vapor according to claim 1, characterized in that: Liquid nitrogen tanks (24) are plugged into the front and rear of the left side of the cabinet (1); the bottom of the liquid nitrogen tank (24) is connected to a delivery pipe (25), and the other end of the delivery pipe (25) is connected to the atomizer (2).

7. The device for rapidly freezing cells in liquid nitrogen vapor according to claim 1, characterized in that: A controller (26) is provided on the left side of the front of the cabinet (1).

8. The device for rapidly freezing cells in liquid nitrogen vapor according to claim 1, characterized in that: A sealing plate (27) is hinged on the right side of the front of the cabinet (1).

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