Cell storage liquid nitrogen tank
By designing wheels and sliding components on the liquid nitrogen tank for cell storage, the problem of the device being difficult to move was solved, achieving convenient movement and stability, reducing manual labor intensity, and preventing damage.
Patent Information
- Application Number
- CN202520322571.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing liquid nitrogen tanks for cell storage are not easy to move during use, requiring manual lifting, which is time-consuming and physically demanding, and are not stable enough.
A base with wheels and a sliding component was designed. The wheels are fixed by the sliding component, and the lifting component protects the sealing cover, thus achieving convenient movement and stability.
It improves the convenience and stability of the device, reduces the labor intensity of manual movement, and prevents damage to the device during movement.
Smart Images
Figure CN223822363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid nitrogen tank technology, specifically a liquid nitrogen tank for cell storage. Background Technology
[0002] Liquid nitrogen tanks employ vacuum insulation technology, primarily utilizing the low boiling point (-196℃) of liquid nitrogen at atmospheric pressure to achieve long-term cryogenic preservation. An internal insulation layer effectively reduces heat conduction and radiation, maintaining the internal low-temperature environment. Simultaneously, a vacuum layer coats the inner wall of the tank, preventing heat penetration into the liquid nitrogen and further reducing evaporation. This allows for the long-term cryogenic preservation of biological samples such as cells, tissues, blood, and sperm, extending their storage time and preserving their biological characteristics.
[0003] However, existing liquid nitrogen tanks for cell storage are not easy to move in actual use. Users need to lift them to move them, which consumes a lot of time and physical strength and increases the workload of staff. To address this problem, a liquid nitrogen tank for cell storage is provided. Summary of the Invention
[0004] The purpose of this utility model is to provide a liquid nitrogen tank for cell storage to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a liquid nitrogen tank for cell storage, including a base, a liquid nitrogen tank at the top of the base, a sealing cap at the top of the liquid nitrogen tank, wheels at the four corners of the bottom of the base, a frame at the bottom of the base, a sliding assembly in the inner cavity of the frame, two brake plates on the sliding assembly, a bracket at the top of the base, a lifting assembly on the bracket, and a protective box on the lifting assembly.
[0005] Preferably, the wheel is a swivel wheel.
[0006] Preferably, anti-slip ridges are provided on the sides of the two brake plates that are far apart from each other.
[0007] Preferably, the sliding assembly includes a lead screw, a knob, sliders, and a limiting assembly. One end of the lead screw is rotatably connected to the rear side of the inner cavity of the frame via a bearing, and the other end of the lead screw extends to the front end of the frame and is fixedly connected to the knob. The two sliders are respectively screwed to the front and rear sides of the outer wall of the lead screw and are respectively fixedly connected to the two brake plates. The limiting assembly is located at the top of the inner cavity of the frame and is fixedly connected to the top of the two sliders.
[0008] Preferably, the limiting component includes a limiting groove and limiting blocks. The limiting groove is formed at the top of the inner cavity of the frame, and the two limiting blocks are slidably embedded in the inner cavity of the limiting groove and are respectively fixedly connected to the top of the two sliders.
[0009] Preferably, the inner cavity of the limiting groove and the outer wall of the limiting block are adapted to each other and are both in the shape of a "T".
[0010] Preferably, the threads on the front and rear sides of the outer wall of the lead screw are arranged opposite to each other.
[0011] Preferably, the lifting assembly includes a screw, a handle, a lifting plate, and a connecting assembly. One end of the screw is rotatably connected to the top of the base via a bearing, and the other end of the screw extends to the top of the bracket and is fixedly connected to the handle. The lifting plate is screwed onto the outer wall of the screw and is fixedly connected to the protective box. The two connecting assemblies are respectively disposed on the front and rear sides of the inner cavity of the bracket and are fixedly connected to the front and rear sides of the lifting plate respectively.
[0012] Preferably, the connecting assembly includes a connecting groove and a connecting block. The connecting groove is formed on one side of the inner wall of the bracket, and the connecting block is slidably embedded in the inner cavity of the connecting groove and fixedly connected to one side of the outer wall of the lifting plate.
[0013] Preferably, the inner cavity of the connecting groove and the outer wall of the connecting block are adapted to each other and are both dovetail-shaped.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] The wheel design facilitates the movement of the device, making it easier to relocate and improving its usability. This solves the problem of existing liquid nitrogen cell storage tanks being difficult to move, requiring users to lift them, which is time-consuming, physically demanding, and increases the workload of staff. The sliding mechanism allows two brake plates to slide simultaneously to the left and right sides of the frame's inner cavity, thus fixing the wheels in place and converting rolling friction between the wheels and the ground into sliding friction. This fixes the device in place, preventing movement during use and improving its stability.
[0016] The lifting assembly drives the protective box to slide downwards, covering the sealing cover and thus protecting the seal from impact damage, thereby improving the stability of the device during use. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a bottom view of the present invention;
[0019] Figure 3 This is a schematic diagram of the lifting assembly of this utility model;
[0020] Figure 4 This utility model Figure 2 Enlarged view of point A;
[0021] Figure 5 This utility model Figure 3 Enlarged view of point B.
[0022] In the diagram: 1. Base; 2. Liquid nitrogen tank; 3. Sealing cap; 4. Brake; 5. Protective box; 6. Wheel; 7. Frame; 8. Brake plate; 9. Lead screw; 10. Knob; 11. Slider; 12. Limiting groove; 13. Limiting block; 14. Screw; 15. Handle; 16. Lifting plate; 17. Connecting groove; 18. Connecting block. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a liquid nitrogen cell storage tank, including a base 1, a liquid nitrogen tank 2 at the top of the base 1, a sealing cap 3 at the top of the liquid nitrogen tank 2, wheels 6 at the four corners of the bottom of the base 1, a frame 7 at the bottom of the base 1, a sliding assembly inside the frame 7, two brake plates 8 on the sliding assembly, a support 4 at the top of the base 1, a lifting assembly on the support 4, and a protective box 5 on the lifting assembly. The wheels 6 facilitate the movement of the device, making it easier to relocate and improving its usability. This solves the problem that existing liquid nitrogen cell storage tanks are difficult to move in practice, requiring additional equipment. The previous method required lifting the device to move it, which was time-consuming and physically demanding, increasing the workload of the staff. By using the sliding component, the two brake plates 8 can slide simultaneously to the left and right sides of the inner cavity of the frame 7, thereby fixing the wheel 6 and converting the rolling friction between the wheel 6 and the ground into sliding friction. This fixes the position of the device and prevents it from moving due to the wheel 6 during use, thus improving the stability of the device during use. The lifting component drives the protective box 5 to slide downward, covering the sealing cover 3, thereby protecting the sealing cover from damage caused by impact and improving the stability of the device during use.
[0025] In this embodiment, wheel 6 is a swivel wheel, which allows wheel 6 to easily change direction during movement.
[0026] In this embodiment, anti-slip ridges are provided on the sides of the two brake plates 8 that are far apart from each other, which can increase the roughness of the side of the brake plate 8 close to the wheel 6, thereby increasing the friction when the brake plate 8 contacts the wheel 6.
[0027] In this embodiment, the sliding assembly includes a lead screw 9, a knob 10, sliders 11, and a limiting assembly. One end of the lead screw 9 is rotatably connected to the rear side of the inner cavity of the frame 7 via a bearing, and the other end of the lead screw 9 extends to the front end of the frame 7 and is fixedly connected to the knob 10. Two sliders 11 are respectively screwed to the front and rear sides of the outer wall of the lead screw 9 and are respectively fixedly connected to two brake plates 8. The limiting assembly is located at the top of the inner cavity of the frame 7 and is fixedly connected to the top of the two sliders 11. Rotating the knob 10 causes the knob 10 to drive the lead screw 9 to rotate, thereby generating a relative thread rotation force on the opposing threads on the front and rear sides of the outer wall of the lead screw 9. Under the limiting action of the limiting groove 12 and the limiting block 13, the two sliders 11 slide simultaneously to the front and rear ends of the lead screw 9, causing the two brake plates 8 to contact the wheels 6 respectively, fixing the wheels 6, and converting the rolling friction between the wheels 6 and the ground into sliding friction, thereby fixing the position of the device and preventing movement due to the setting of the wheels 6 during use, thus improving the stability of the device during use.
[0028] In this embodiment, the limiting component includes a limiting groove 12 and limiting blocks 13. The limiting groove 12 is opened at the top of the inner cavity of the frame 7. The two limiting blocks 13 are slidably embedded in the inner cavity of the limiting groove 12 and are respectively fixedly connected to the top of the two sliders 11. Under the joint action of the limiting groove 12 and the limiting blocks 13, the sliders 11 can be prevented from rotating with the lead screw 9 when the lead screw 9 rotates, thus improving the stability of the sliding component during use.
[0029] In this embodiment, the inner cavity of the limiting groove 12 and the outer wall of the limiting block 13 are adapted to each other and are both in the shape of a "T". This allows one end of the limiting block 13 to always remain embedded in the inner cavity of the limiting groove 12, thereby improving the stability of the limiting component during use.
[0030] In this embodiment, the threads on the front and rear sides of the outer wall of the lead screw 9 are arranged opposite to each other, so that when the lead screw 9 rotates, the front and rear sides of its outer wall generate relative thread rotational forces, and the two sliders 11 slide relative to each other simultaneously under the limiting action of the limiting groove 12 and the limiting block 13.
[0031] In this embodiment, the lifting assembly includes a screw 14, a handle 15, a lifting plate 16, and a connecting assembly. One end of the screw 14 is rotatably connected to the top of the base 1 via a bearing, and the other end of the screw 14 extends to the top of the bracket 4 and is fixedly connected to the handle 15. The lifting plate 16 is screwed onto the outer wall of the screw 14 and is fixedly connected to the protective box 5. Two connecting assemblies are respectively disposed on the front and rear sides of the inner cavity of the bracket 4 and are fixedly connected to the front and rear sides of the lifting plate 16. Rotating the handle 15 causes the screw 14 to rotate. Under the action of the rotational force of the screw 14 thread on the outer wall of the screw 14, when the screw 14 rotates, the lifting plate 16 can slide up and down in a straight line under the limiting action of the connecting block 18 and the connecting groove 17, thereby allowing the protective box 5 to cover the sealing cover 3, thus achieving protection of the sealing cover and preventing damage to the sealing cover due to impact, thereby improving the stability of the device during use.
[0032] In this embodiment, the connecting component includes a connecting groove 17 and a connecting block 18. The connecting groove 17 is opened on one side of the inner wall of the bracket 4. The connecting block 18 is slidably embedded in the inner cavity of the connecting groove 17 and fixedly connected to one side of the outer wall of the lifting plate 16. Under the combined action of the connecting block 18 and the connecting groove 17, the lifting plate 16 can be prevented from rotating when the screw 14 rotates.
[0033] In this embodiment, the inner cavity of the connecting groove 17 and the outer wall of the connecting block 18 are adapted to each other and are both dovetail-shaped, which can keep one end of the connecting block 18 embedded in the inner cavity of the connecting groove 17, thus improving the stability of the connecting assembly during use.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A liquid nitrogen storage tank for cells, comprising a base (1), characterized in that: The base (1) is provided with a liquid nitrogen tank (2) at the top and a sealing cap (3) at the top. Wheels (6) are provided at the four corners of the bottom of the base (1). A frame (7) is provided at the bottom of the base (1). A sliding assembly is provided in the inner cavity of the frame (7). Two brake plates (8) are provided on the sliding assembly. A bracket (4) is provided at the top of the base (1). A lifting assembly is provided on the bracket (4). A protective box (5) is provided on the lifting assembly.
2. The liquid nitrogen tank for cell storage according to claim 1, characterized in that: The wheel (6) is a swivel wheel.
3. The liquid nitrogen tank for cell storage according to claim 1, characterized in that: Anti-slip ridges are provided on the sides of the two brake plates (8) that are far apart from each other.
4. A liquid nitrogen storage tank for cells according to claim 1, characterized in that: The sliding assembly includes a lead screw (9), a knob (10), a slider (11), and a limiting assembly. One end of the lead screw (9) is rotatably connected to the rear side of the inner cavity of the frame (7) via a bearing. The other end of the lead screw (9) extends to the front end of the frame (7) and is fixedly connected to the knob (10). The two sliders (11) are respectively screwed to the front and rear sides of the outer wall of the lead screw (9) and are respectively fixedly connected to the two brake plates (8). The limiting assembly is located at the top of the inner cavity of the frame (7) and is fixedly connected to the top of the two sliders (11).
5. A liquid nitrogen storage tank for cells according to claim 4, characterized in that: The limiting component includes a limiting groove (12) and a limiting block (13). The limiting groove (12) is opened at the top of the inner cavity of the frame (7). The two limiting blocks (13) are slidably embedded in the inner cavity of the limiting groove (12) and are respectively fixedly connected to the top of the two sliders (11).
6. A liquid nitrogen storage tank for cells according to claim 5, characterized in that: The inner cavity of the limiting groove (12) is adapted to fit the outer wall of the limiting block (13) and both are in the shape of a "T".
7. A liquid nitrogen storage tank for cells according to claim 4, characterized in that: The threads on the front and rear sides of the outer wall of the lead screw (9) are arranged opposite to each other.
8. A liquid nitrogen storage tank for cells according to claim 1, characterized in that: The lifting assembly includes a screw (14), a handle (15), a lifting plate (16), and a connecting assembly. One end of the screw (14) is rotatably connected to the top of the base (1) via a bearing. The other end of the screw (14) extends to the top of the bracket (4) and is fixedly connected to the handle (15). The lifting plate (16) is screwed onto the outer wall of the screw (14) and is fixedly connected to the protective box (5). The two connecting assemblies are respectively located on the front and rear sides of the inner cavity of the bracket (4) and are respectively fixedly connected to the front and rear sides of the lifting plate (16).
9. A liquid nitrogen storage tank for cells according to claim 8, characterized in that: The connecting assembly includes a connecting groove (17) and a connecting block (18). The connecting groove (17) is opened on one side of the inner wall of the bracket (4). The connecting block (18) is slidably embedded in the inner cavity of the connecting groove (17) and fixedly connected to one side of the outer wall of the lifting plate (16).
10. A liquid nitrogen storage tank for cells according to claim 9, characterized in that: The inner cavity of the connecting groove (17) fits well with the outer wall of the connecting block (18) and both are dovetail-shaped.