Cell freezing storage device

Abstract

The utility model relates to the technical field of cell freezing storage, and discloses a cell freezing storage device which comprises a main box body, and an inner heat preservation box is fixedly installed in an inner cavity of the main box body. By opening the box cover and pulling the third connecting rod, the fourth connecting rod can be driven to move, so that the second connecting rod is driven to move, the first connecting rod is lifted, the lifting plate is driven to ascend to enable the test tube rack to penetrate through the through hole to ascend, the inner heat preservation box can be kept closed, temperature fluctuation is avoided, and cell test tubes are convenient to take and place after the test tube rack ascends; a fourth connecting rod and a second connecting rod are folded to save space; a lifting plate drives the cell test tubes in the test tube rack to descend into an inner cavity of the inner heat preservation box to freeze cells; a clamping block and a clamping groove are matched to keep the box cover and the main box body closed, so that the box cover is prevented from being loosened; the pressure gauge can monitor the pressure of liquid nitrogen in the main box body, and the liquid discharging pipe is opened to adjust the pressure conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of cell freezing storage, in particular to a cell freezing storage device. Background Art

[0002] Cell cryopreservation is a technique that places cells in a low-temperature environment to reduce cell metabolism for long-term storage. Cell cryopreservation is one of the main methods of cell preservation and plays an important role in cell seed preservation. Using cryopreservation technology to store cells in liquid nitrogen at -196°C can temporarily remove cells from the growth state and preserve their cell characteristics, so that the cells can be revived for experiments when needed.

[0003] Most existing cell freezing devices place batches of cell test tubes in a freezing tank containing liquid nitrogen. Since individual test tube operations are required for storage or retrieval, the low temperature when opening the freezing tank may cause harm to the operator and easily cause the temperature inside the tank to fluctuate, which is not conducive to maintaining freezing. It is also difficult to find individual test tubes, which brings inconvenience to experimental operations.

[0004] Therefore, those skilled in the art provide a cell freezing storage device to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to improve the problems that low temperature may cause damage to operators when opening the freezing tank, and easily cause the temperature inside the tank to change, which is not conducive to maintaining freezing, and it is troublesome to find a single test tube, which brings inconvenience to experimental operations, the utility model provides a cell freezing storage device.

[0006] The utility model provides a cell freezing storage device, which adopts the following technical solutions:

[0007] A cell freezing storage device comprises a main box, an inner heat preservation box is fixedly installed in the inner cavity of the main box, a through hole is opened on the top of the inner heat preservation box, a lifting plate is slidably connected to the inner cavity of the inner heat preservation box, a test tube rack is fixedly installed on the top of the lifting plate, a cell test tube is slidably connected to the inner cavity of the test tube rack, a first connecting rod is fixedly installed on both sides of the top of the lifting plate, one end of the first connecting rod is rotatably connected to the second connecting rod, the top of the main box is rotatably connected to the box cover by a hinge, the bottom of the box cover is fixedly installed with a mounting plate, the mounting plate A third connecting rod is fixedly installed on the bottom of the box cover, one end of the third connecting rod is rotatably connected to the fourth connecting rod, one end of the fourth connecting rod is rotatably connected to one end of the second connecting rod, a clamping block is fixedly installed on one side of the bottom of the box cover, a clamping slot is opened on one side of the top of the main box body, the clamping block fits in the clamping slot, a spring is fixedly installed on both sides of the inner wall of the clamping slot, one end of the spring is fixedly installed with a limiting block, the top of the inner insulation box is connected to a liquid adding pipe, the bottom of one side of the main box body is connected to a drain pipe, and a pressure gauge is fixedly installed on the surface of the drain pipe.

[0008] By adopting the above technical solution, by setting the box cover, since the third connecting rod is fixedly connected to the box cover through the mounting plate, when the box cover is opened, the third connecting rod is connected to the fourth connecting rod, which can drive the fourth connecting rod to move, thereby driving the second connecting rod to move, so that the first connecting rod is lifted upward, and finally driving the lifting plate to lift upward, so that the test tube rack passes through the through hole and rises, while keeping the inner cavity of the inner insulation box closed to avoid temperature fluctuations. After the test tube rack rises, it is convenient to take and place cell test tubes, and labels can be attached to the sealing covers of the cell test tubes for easy distinction. When the box cover is closed, the fourth connecting rod and the second connecting rod are folded to save space, and at the same time, the lifting plate drives the cell test tubes in the test tube rack to descend into the inner cavity of the inner insulation box to freeze the cells. The card block and the card slot cooperate to keep the box cover and the main box body closed to prevent the box cover from being loosened. The pressure gauge can monitor the liquid nitrogen pressure in the main box, and opening the drain pipe is convenient for adjusting the pressure.

[0009] Optionally, slide grooves are provided on both sides of the inner cavity of the inner thermal insulation box, and the slide grooves are slidably connected to the lifting plate.

[0010] By adopting the above technical solution, the lifting plate can be limited and guided by the sliding groove, so that the lifting plate can be easily raised and lowered.

[0011] Optionally, the through hole is slidably connected to the test tube rack, and a sealing cover is provided on the top of the cell test tube.

[0012] Through the technology, the outer wall of the test tube rack is combined with the through hole when rising to keep the inner cavity of the inner heat preservation box closed, so that the temperature fluctuation in the inner heat preservation box is avoided to affect the freezing effect, the sealing cover is convenient for storing cells to avoid pollution, and labels can be pasted on the sealing cover to facilitate identification.

[0013] Optionally, the main box body is fixedly installed with positioning sheets on both sides of the inner cavity.

[0014] Through the technology, the first connecting rod can be positioned and guided by the positioning sheet, so that the lifting plate is prevented from being affected by slipping.

[0015] Optionally, the box cover is fixedly installed with a handle on one side, and the handle is rectangular.

[0016] Through the technology, the handle is convenient for opening the box cover, and the opening angle of the box cover can be controlled.

[0017] Optionally, the two sides of the clamping block are provided with limiting grooves, and the limiting grooves are slidably connected with limiting blocks.

[0018] Through the technology, the clamping block and the limiting block are combined through the limiting groove, so that the box cover is kept closed when the box cover is closed, and the storage of the cell test tubes in the box is facilitated.

[0019] Optionally, the liquid adding pipe and the liquid discharging pipe are threadedly connected with screw caps at one end, and the screw caps are provided with anti-skid lines.

[0020] Through the technology, liquid nitrogen can be added to the interlayer between the main box body and the inner heat preservation box through the liquid adding pipe by opening the screw cap, the cell test tubes in the inner heat preservation box can be frozen, the screw cap is closed to avoid the escape of liquid nitrogen, and the anti-skid lines can increase the friction to facilitate tightening the screw cap.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. The utility model provides a box cover, and since the third connecting rod is fixedly connected to the box cover through the mounting plate, when the box cover is opened, the third connecting rod is connected to the fourth connecting rod, which can drive the fourth connecting rod to move, thereby driving the second connecting rod to move, so that the first connecting rod is lifted upward, and finally the lifting plate is lifted upward, so that the test tube rack passes through the through hole and rises, while keeping the inner cavity of the inner insulated box closed to avoid temperature fluctuations. After the test tube rack is raised, it is convenient to take and put cell test tubes, and labels can be attached to the sealing covers of the cell test tubes for easy identification. When the box cover is closed, the fourth connecting rod and the second connecting rod are folded to save space, and at the same time, the lifting plate drives the cell test tubes in the test tube rack to descend into the inner cavity of the inner insulated box to freeze the cells. The card block cooperates with the card slot to keep the box cover and the main box body closed to prevent the box cover from being loosened. The pressure gauge can monitor the liquid nitrogen pressure in the main box, and opening the drain pipe is convenient for adjusting the pressure.

[0023] 2. The utility model can limit and guide the lifting plate by the slide groove, which is convenient for lifting and lowering the lifting plate. By providing the through hole, the outer wall of the test tube rack fits with the through hole during rising, so that the inner cavity of the inner insulation box remains closed, thereby preventing the temperature inside the inner insulation box from fluctuating and affecting the freezing effect. The sealing cover is convenient for storing cell test tubes and avoids contamination. A label can be attached to the sealing cover for easy identification. The first connecting rod can be positioned and guided by the positioning piece to prevent slippage and affect the lifting and lowering of the lifting plate. The box cover is easy to open by the handle, and the opening and closing angle of the box cover can be controlled. The limit groove can make the card block fit with the limit block, so that the box cover remains airtight when closed, which is beneficial for the storage of cell test tubes in the box. By opening the screw cap, liquid nitrogen can be added to the interlayer between the main box body and the inner insulation box through the liquid adding tube, so that the test tubes in the inner insulation box can be frozen. Closing the screw cap prevents the liquid nitrogen from escaping. The anti-slip pattern can increase friction and facilitate tightening the screw cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an isometric view of the utility model.

[0025] Figure 2 It is a schematic cross-sectional view of the structure of the utility model.

[0026] Figure 3 It is an enlarged structural diagram of point A of the present utility model.

[0027] Figure 4 It is a schematic top view of the structure of the utility model.

[0028] Description of reference numerals:

[0029] 1. Main box; 2. Inner insulation box; 3. Through hole; 4. Slide; 5. Lifting plate; 6. Test tube rack; 7. Cell test tube; 8. First connecting rod; 9. Positioning piece; 10. Second connecting rod; 11. Box cover; 12. Mounting piece; 13. Third connecting rod; 14. Fourth connecting rod; 15. Handle; 16. Block; 17. Slot; 18. Spring; 19. Limit block; 20. Liquid adding tube; 21. Liquid draining tube; 22. Pressure gauge. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1-4 This application is described in further detail.

[0031] Example 1:

[0032] Please refer to Figures 1-4 A cell freezing storage device includes a main box 1, an inner heat preservation box 2 is fixedly installed in the inner cavity of the main box 1, a through hole 3 is opened on the top of the inner heat preservation box 2, a lifting plate 5 is slidably connected to the inner cavity of the inner heat preservation box 2, a test tube rack 6 is fixedly installed on the top of the lifting plate 5, and a cell test tube 7 is slidably connected to the inner cavity of the test tube rack 6, a first connecting rod 8 is fixedly installed on both sides of the top of the lifting plate 5, one end of the first connecting rod 8 is rotatably connected to the second connecting rod 10, and the top of the main box 1 is rotatably connected to the box cover 11 through a hinge. A mounting plate 12 is fixedly installed at the bottom of 11, a third connecting rod 13 is fixedly installed at the bottom of the mounting plate 12, one end of the third connecting rod 13 is rotatably connected to the fourth connecting rod 14, one end of the fourth connecting rod 14 is rotatably connected to one end of the second connecting rod 10, and slide grooves 4 are provided on both sides of the inner cavity of the inner insulation box 2, the slide grooves 4 are slidably connected to the lifting plate 5, the through hole 3 is slidably connected to the test tube rack 6, and a sealing cover is provided on the top of the cell test tube 7, and positioning pieces 9 are fixedly installed on both sides of the inner cavity of the main box body 1, and the positioning pieces 9 are U-shaped.

[0033] In this embodiment, by setting the box cover 11, since the third connecting rod 13 is fixedly connected to the box cover 11 through the mounting plate 12, when the box cover 11 is opened, the third connecting rod 13 is connected to the fourth connecting rod 14, which can drive the fourth connecting rod 14 to move, thereby driving the second connecting rod 10 to move, so that the first connecting rod 8 is lifted upward, and finally the lifting plate 5 is lifted upward, so that the test tube rack 6 passes through the through hole 3 and rises, while keeping the inner cavity of the inner insulation box 2 closed to avoid temperature fluctuations. After the test tube rack 6 rises, it is convenient to take and place the cell test tube 7, and a label can be attached to the sealing cover of the cell test tube 7 for easy identification. When the box cover 11 is closed, the fourth connecting rod 14 and the second connecting rod are connected. The folding 10 saves space, and at the same time the lifting plate 5 drives the cell test tubes 7 in the test tube rack 6 to descend to the inner cavity of the inner insulated box 2 to freeze the cells. The lifting plate 5 can be limited and guided by the slide groove 4, which is convenient for the lifting plate 5 to be lifted and lowered. By opening the through hole 3, the outer wall of the test tube rack 6 fits with the through hole 3 during the lifting so that the inner cavity of the inner insulated box 2 remains closed, avoiding temperature fluctuations in the inner insulated box 2 that affect the freezing effect. The sealing cover facilitates the preservation of cells in the cell test tube 7 to avoid contamination. Labels can be attached to the sealing cover for easy distinction. The first connecting rod 8 can be positioned and guided by the positioning piece 9 to avoid slipping that affects the lifting and lowering of the lifting plate 5.

[0034] Example 2:

[0035] Reference Figure 2 、 Figure 3 and Figure 4 A card block 16 is fixedly installed on one side of the bottom of the box cover 11, and a card slot 17 is provided on one side of the top of the main box body 1. The card block 16 fits in the card slot 17, and springs 18 are fixedly installed on both sides of the inner wall of the card slot 17. One end of the spring 18 is fixedly installed with a limit block 19. The top of the inner insulation box 2 is connected with a liquid adding pipe 20, and the bottom of one side of the main box body 1 is connected with a liquid drain pipe 21. A pressure gauge 22 is fixedly installed on the surface of the liquid drain pipe 21. A handle 15 is fixedly installed on one side of the box cover 11. The handle 15 is rectangular, and limiting grooves are provided on both sides of the card block 16. The limiting grooves are slidably connected to the limiting blocks 19. One end of the liquid adding pipe 20 and the liquid drain pipe 21 are both threadedly connected with a screw cap, and the screw cap is provided with anti-slip grooves.

[0036] In this embodiment: the block 16 cooperates with the slot 17 to keep the box cover 11 and the main box body 1 closed, preventing the box cover 11 from loosening, the pressure gauge 22 can monitor the liquid nitrogen pressure in the main box body 1, and opening the drain pipe 21 is convenient for adjusting the pressure. The box cover 11 is convenient to open through the handle 15, and the opening and closing angle of the box cover 11 can be controlled. The block 16 and the limit block 19 can be matched through the limit groove to keep the box cover 11 airtight when closed, which is beneficial to the storage of cell test tubes 7 in the box. By opening the screw cap, liquid nitrogen can be added to the interlayer between the main box body 1 and the inner insulation box 2 through the liquid adding tube 20, and the cell test tubes 7 in the inner insulation box 2 can be frozen. Closing the screw cap prevents the liquid nitrogen from escaping, and the anti-slip pattern can increase friction to facilitate tightening the screw cap.

[0037] The implementation principle of the present utility model is as follows: when in use, the box cover 11 is pulled upward by the handle 15, and since the third connecting rod 13 is fixedly connected to the box cover 11 through the mounting plate 12, and the other end of the third connecting rod 13 is rotatably connected to the fourth connecting rod 14, the other end of the fourth connecting rod 14 is rotatably connected to the second connecting rod 10, and the other end of the second connecting rod 10 is rotatably connected to the first connecting rod 8, the first connecting rod 8 is slidably connected to the positioning plate 9, and the positioning plate 9 is fixedly connected to the inner wall of the main box body 1. When the box cover 11 is opened, the third connecting rod 13 drives the fourth connecting rod 14 and the second connecting rod 10 to stretch and move, and the second connecting rod 10 drives the first connecting rod 8 to lift upward, thereby driving the lifting plate 5 to lift upward along the slide groove 4, driving the test tube rack 6 and the cell test tube 7 to rise, and the test tube rack 6 passes through the through hole 3. Since the outer wall of the test tube rack 6 fits with the through hole 3, When rising, the inner cavity of the inner insulated box 2 can be kept closed and the freezing temperature can be maintained. After rising, the cell test tubes 7 in the test tube rack 6 can be taken out and placed. After the cell test tubes 7 are placed, they can be labeled on the sealing cover for easy distinction. The screw cap of the liquid adding tube 20 is opened, and liquid nitrogen is added to the interlayer between the main box body 1 and the inner insulated box 2. The pressure gauge 22 on the drain pipe 21 is observed to monitor the pressure in the interlayer. When the pressure is too high, the screw cap of the drain pipe 21 is opened to release some liquid nitrogen. The box cover 11 is pulled down to fold and retract the fourth connecting rod 14 and the second connecting rod 10, and at the same time, the first connecting rod 8 is lowered, driving the lifting plate 5 to descend to the bottom of the inner cavity of the inner insulated box 2, so that the cell test tubes 7 are kept frozen. When the box cover 11 contacts the main box body 1, the block 16 is embedded in the slot 17, and the spring 18 and the limit block 19 can limit the block 16 to prevent it from loosening, so that the inner cavity of the main box body 1 remains closed.

[0038] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cell freezing storage device, comprising a main box (1), characterized in that: The inner cavity of the main box (1) is fixedly installed with an inner heat preservation box (2), the top of the inner heat preservation box (2) is provided with a through hole (3), the inner cavity of the inner heat preservation box (2) is slidably connected with a lifting plate (5), the top of the lifting plate (5) is fixedly installed with a test tube rack (6), the inner cavity of the test tube rack (6) is slidably connected with a cell test tube (7), both sides of the top of the lifting plate (5) are fixedly installed with a first connecting rod (8), one end of the first connecting rod (8) is rotatably connected to a second connecting rod (10), the top of the main box (1) is rotatably connected to a box cover (11) through a hinge, the bottom of the box cover (11) is fixedly installed with a mounting plate (12), and the bottom of the mounting plate (12) is fixedly installed with a third connecting rod (13), One end of the third connecting rod (13) is rotatably connected to the fourth connecting rod (14), and one end of the fourth connecting rod (14) is rotatably connected to one end of the second connecting rod (10). A clamping block (16) is fixedly installed on one side of the bottom of the box cover (11). A clamping slot (17) is provided on one side of the top of the main box body (1). The clamping block (16) fits in the clamping slot (17). Springs (18) are fixedly installed on both sides of the inner wall of the clamping slot (17). One end of the spring (18) is fixedly installed with a limit block (19). The top of the inner insulation box (2) is connected to a liquid adding pipe (20), and the bottom of one side of the main box body (1) is connected to a liquid drain pipe (21). A pressure gauge (22) is fixedly installed on the surface of the liquid drain pipe (21).

2. A cell freezing storage device according to claim 1, characterized in that: Slide grooves (4) are provided on both sides of the inner cavity of the inner heat preservation box (2), and the slide grooves (4) are slidably connected to the lifting plate (5).

3. The cell freezing storage device according to claim 1, characterized in that: The through hole (3) is slidably connected to the test tube rack (6), and a sealing cover is provided on the top of the cell test tube (7).

4. The cell freezing storage device according to claim 1, characterized in that: Positioning pieces (9) are fixedly mounted on both sides of the inner cavity of the main box body (1), and the positioning pieces (9) are U-shaped.

5. The cell freezing storage device according to claim 1, characterized in that: A handle (15) is fixedly mounted on one side of the box cover (11), and the handle (15) is rectangular.

6. The cell freezing storage device according to claim 1, characterized in that: Limiting grooves are provided on both sides of the clamping block (16), and the limiting grooves are slidably connected to the limiting block (19).

7. The cell freezing storage device according to claim 1, characterized in that: One end of the liquid adding pipe (20) and the liquid discharging pipe (21) are both threadedly connected to a screw cap, and the screw cap is provided with anti-slip grooves.

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