Liquid nitrogen tank support and liquid nitrogen tank comprising same

Abstract

The utility model discloses a liquid nitrogen tank support and a liquid nitrogen tank comprising the same, and relates to the field of liquid nitrogen tank storage, the liquid nitrogen tank support comprises a bottom plate arranged in a liquid nitrogen tank body, a plurality of partition plates are fixedly arranged on the bottom plate and form a plurality of independent storage spaces, an upper net rack is rotatably arranged at the upper ends of the partition plates, a notch is formed in the upper net rack, and the upper net rack and the partition plates are arranged on the bottom plate. When the upper net frame rotates in the liquid nitrogen tank body, the storage space can be gradually exposed out of the notch. And the space of the inner cavity of the liquid nitrogen tank can be reasonably utilized due to the arrangement of the bracket assembly.

Description

Technical Field

[0001] The present application relates to the field of liquid nitrogen tank storage, and in particular to a liquid nitrogen tank bracket and a liquid nitrogen tank containing the bracket. Background Art

[0002] Medical liquid nitrogen tanks are containers specially used in the medical field that can store and maintain liquid nitrogen at low temperatures. The temperature of liquid nitrogen is extremely low, reaching -196°C, which makes medical liquid nitrogen tanks widely used in biomedical research, such as long-term storage and transportation of cells, tissues, semen, etc.

[0003] The existing liquid nitrogen tank is used to directly package the tissue to be preserved and place it inside, which results in that only the space below the middle of the inner cavity of the liquid nitrogen tank can be used, and the inner space of the liquid nitrogen tank cannot be fully and reasonably utilized, resulting in a waste of space. Utility Model Content

[0004] In order to improve the space utilization rate of a liquid nitrogen tank, the present application provides a liquid nitrogen tank bracket and a liquid nitrogen tank including the bracket.

[0005] The present application provides a liquid nitrogen tank bracket, which adopts the following technical solution:

[0006] A liquid nitrogen tank support comprises a bottom plate arranged in a liquid nitrogen tank body, a plurality of partitions are fixedly arranged on the bottom plate to form a plurality of independent storage spaces, a net rack is rotatably arranged on the upper ends of the plurality of partitions, a notch is provided on the net rack, and during the rotation of the net rack in the liquid nitrogen tank body, the storage spaces can be exposed at the notches one by one.

[0007] By adopting the above technical solution, the independent storage space and the setting of the grid rack can classify and store different refrigerated items in layers, greatly increasing the number of refrigerated items, making them orderly and easy to find, and increasing the utilization rate of space.

[0008] Preferably, a handle is fixedly provided on a side of the upper rack away from the partition, and a through hole is formed on the handle.

[0009] By adopting the above technical solution, the tool is inserted into the perforation and the net rack is hooked up by the handle, and then the net rack and the bottom plate are taken out from the liquid nitrogen tank.

[0010] Preferably, a set gap is provided between the upper end of the partition and the upper grid.

[0011] By adopting the above technical solution, the setting of the gap can reduce the height of the grid rack and thus increase the storage space on the upper part of the liquid nitrogen tank body, while not affecting the rotation of the grid rack. When the gap is set to be small, it can also ensure that the grid rack is not prone to excessive tilting.

[0012] Preferably, the storage space is divided into equal parts, and the opening size of the notch corresponds to the size of the angle of the equal division of the storage space.

[0013] By adopting the above technical solution, the equally divided setting is conducive to the setting of the gap, which is convenient for processing, production and use.

[0014] Preferably, the mesh rack includes a mesh plate, an edge of the mesh plate away from the partition is fixedly connected to a surrounding plate, the handle is fixed to the upper end of the surrounding plate, the notch is opened on one side of the mesh plate, and a plurality of through holes are equally divided and arranged around the mesh plate.

[0015] By adopting the above technical solution, the through holes opened on the mesh plate can facilitate the flow of liquid nitrogen to achieve a comprehensive cooling effect. At the same time, the provided enclosure can limit the refrigerated objects on the upper end of the mesh plate to prevent the refrigerated objects from slipping when the upper mesh rack is taken out.

[0016] Preferably, a support frame is provided at the bottom of the base plate.

[0017] By adopting the above technical solution, the bottom plate is not in direct contact with the bottom of the liquid nitrogen tank, but a space is reserved to ensure that the refrigerated objects can be wrapped by the liquid nitrogen, thereby ensuring the refrigeration effect.

[0018] Preferably, a liquid-passing gap is provided between the peripheral side of the bottom plate and the inner wall of the liquid nitrogen tank.

[0019] By adopting the above technical solution, the liquid nitrogen at the bottom of the liquid nitrogen tank body is facilitated to flow upward from the liquid-passing gap, thereby increasing the refrigeration effect of the upper cavity of the liquid nitrogen tank body.

[0020] Preferably, the partition is rotatably connected to the net frame via a shaft sleeve assembly, the shaft sleeve assembly includes a central axis fixed to the base plate and a fixed sleeve fixed to the net frame, the fixed sleeve is sleeved on the central axis, the fixed sleeve and the central axis are rotatably arranged via bearings, and the outer surface of the central axis is fixed to a plurality of partitions.

[0021] By adopting the above technical solution, the central axis plays a supporting role for the net rack, the setting of the fixed sleeve can support and fix the net rack so as to facilitate the connection with the bearing to achieve the effect of supporting rotation, and the setting of the bearing can reduce the friction between the main axis and the net rack, thereby making the rotation of the net rack smoother.

[0022] On the other hand, the present application provides a liquid nitrogen tank with a bracket, which adopts the following technical solution:

[0023] A liquid nitrogen tank with a bracket comprises a liquid nitrogen tank body, wherein any one of the above-mentioned liquid nitrogen tank brackets is arranged in the liquid nitrogen tank body.

[0024] By adopting the above technical solution, the liquid nitrogen tank body can store the liquid nitrogen tank bracket.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] The provision of multiple storage spaces and upper racks can make reasonable use of the space in the inner cavity of the liquid nitrogen tank and achieve the effect of classification and stratification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the tank cover and liquid nitrogen tank body being opened in this application;

[0028] Figure 2 This is a schematic diagram of the internal position of the bracket assembly and the liquid nitrogen tank of the present application;

[0029] Figure 3 This is a schematic diagram of the internal cross-sectional axonometric view of the liquid nitrogen tank of the present application;

[0030] Figure 4 A schematic diagram of a bracket assembly of the present application;

[0031] Figure 5 This is a schematic diagram of the connection between the central axis and the partition of this application.

[0032] Figure numerals: 1, liquid nitrogen tank body; 2, support frame; 3, perforation; 4, liquid gap; 51, upper rack; 511, mesh plate; 512, enclosure; 52, handle; 53, bearing; 54, through hole; 55, middle axis; 56, fixing sleeve; 57, bottom plate; 58, partition; 59, notch; 6, storage space. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 - Figure 5 This application is described in further detail.

[0034] Example 1

[0035] An embodiment of the present application discloses a liquid nitrogen tank bracket.

[0036] Reference Figure 2 - Figure 5 A liquid nitrogen tank support includes a bottom plate 57 disposed in a liquid nitrogen tank body 1, a plurality of partitions 58 are fixedly connected to the bottom plate 57, and an independent storage space 6 is formed between each two adjacent partitions 58. The more partitions 58 there are, the more storage spaces 6 are provided. A net rack 51 is rotatably connected to the central intersection of the upper ends of the plurality of partitions 58, and a fan-shaped notch 59 is provided on the net rack 51. During the rotation of the net rack 51 in the liquid nitrogen tank body 1, each storage space 6 can be exposed at the notch 59 one by one.

[0037] By providing a double-layer support, the utilization rate of the liquid nitrogen tank body 1 is improved. In the process of taking out the refrigerated objects, the refrigerated objects on the net rack 51 can be directly taken out, and the net rack 51 is rotated to make the notch 59 correspond to the storage space 6, so that the refrigerated objects in the storage space 6 can be taken out.

[0038] Reference Figure 5 The bottom plate 57 is an irregular circular plate structure as a whole. It can be set as a plate without holes, or multiple circular holes can be opened on the bottom plate 57 to increase the amount of liquid nitrogen flow and reduce the weight of the bottom plate 57. Due to different refrigeration requirements, it needs to be set according to actual usage. A liquid gap 4 is set between the peripheral side of the bottom plate 57 and the inner wall of the liquid nitrogen tank body 1. The liquid gap 4 allows nitrogen to flow from the bottom of the liquid nitrogen tank body 1 to the upper cavity of the liquid nitrogen tank body 1, thereby refrigerating the refrigerated objects on the upper end of the net rack 51.

[0039] In the drawings of this embodiment, four partitions 58 are provided as an example. Four rectangular partitions 58 are fixedly provided in the middle of the upper end of the bottom plate 57 and are perpendicular to the bottom plate 57. The four partitions 58 divide the bottom plate 57 into four equal parts, thereby forming equally divided storage spaces 6. The storage space 6 can also be divided into five equal parts, six equal parts, etc. according to actual needs. The user can place different refrigerated items in each independent storage space 6, thereby achieving the effect of classified storage. When taking out the required refrigerated items, the user only needs to rotate the upper rack 51 so that the notch 59 corresponds to the corresponding storage space 6.

[0040] Reference Figure 3 - Figure 5 The upper rack 51 includes a disc-shaped mesh plate 511. The mesh plate 511 is provided with a plurality of through holes 54 for liquid nitrogen to flow. The through holes 54 are arranged in a circular shape. The apertures 54 need to be set according to the needs of implementation and are not limited to a certain diameter. The notch 59 is fan-shaped and is provided on the mesh plate 511. The opening size of the notch 59 is the same as the angle of the storage space 6, or the notch 59 is slightly smaller than the angle of the storage space 6. The size of the notch 59 in this embodiment is shown as 90°.

[0041] In order to ensure the stability of the refrigerated objects placed on the net rack 51, a panel 512 is fixedly connected to the edge of the net plate 511 and the edge of the eight-frame notch 59. The panel 512 extends in a direction away from the bottom plate 57. In addition, the panel 512 located at the notch 59 is integrally extended with a handle 52 in a direction away from the partition 58. The corners of the handle 52 are chamfered, and a through hole 3 is provided on the notch 59 to facilitate the rotation of the net rack 51 or the lifting and placing of the bracket.

[0042] Reference Figure 4 , Figure 5A set gap is reserved between the upper end of the partition 58 and the bottom of the net rack 51. The setting of the gap can reduce the height of the net rack 51, thereby increasing the storage space on the upper part of the liquid nitrogen tank body 1, and will not affect the rotation of the net rack 51. And when the set gap is small, it can also ensure that the net rack 51 is not prone to excessive tilting even if an unsteady rotation occurs during the rotation process. In order to facilitate the setting and installation of the rotating structure, a plurality of partitions 58 are located at the intersection of the central axis 55 with rectangular notches.

[0043] Reference Figure 2 - Figure 5 The lower end of the bottom plate 57 is fixedly connected with the support frame 2, and the support frame 2 is a square frame structure as a whole. When in use, the liquid nitrogen tank bracket is placed in the liquid nitrogen tank body 1, and the support frame 2 contacts the bottom of the liquid nitrogen tank body 1. The bottom plate 57 is not directly in contact with the bottom of the liquid nitrogen tank body 1, but a space is left to ensure that the refrigerated objects can be wrapped by liquid nitrogen, thereby ensuring the refrigeration effect.

[0044] Reference Figure 4 and Figure 5 The rotating structure of the partition 58 and the net rack 51 is a shaft sleeve assembly resistant to ultra-low temperature. The shaft sleeve assembly includes a central shaft 55 fixed to the middle part of the upper end of the bottom plate 57, a fixed sleeve 56 penetrating and fixed to the middle part of the net rack 51, and a bearing 53 resistant to ultra-low temperature. The fixed sleeve 56 is sleeved on the central shaft 55, and the outer surface of the central shaft 55 is fixed to a plurality of partitions 58. The middle part of the fixed sleeve 56 is welded and fixed to the outer ring of the bearing 53, the inner ring of the bearing 53 is welded and fixed to the central shaft 55, and the upper end surface of the central shaft 55 is flush with the upper end surface of the bearing 53. When the net rack 51 rotates, the outer ring of the bearing 53 is driven to rotate through the fixed sleeve 56 and the ball bearings. The rotation of the net rack 51 makes the notch 59 correspond to the storage space 6 one by one, which is convenient for taking out the required refrigerated objects. The setting of the bearing 53 can make the rotation of the net rack 51 smoother and more labor-saving.

[0045] The implementation principle of a liquid nitrogen tank bracket in the embodiment of the present application is:

[0046] After the user opens the liquid nitrogen tank 1, the refrigerated items on the net rack 51 can be taken out directly. If the refrigerated items in the storage space 6 are to be taken out, the handle 52 is turned to rotate the net rack 51 so that the notch 59 corresponds to the designated storage space 6 to expose the refrigerated items to be taken out, and then the refrigerated items are taken out. By using the bracket, the space in the liquid nitrogen tank 1 can be reasonably utilized.

[0047] Example 2

[0048] Disclosed is a liquid nitrogen tank with a bracket, comprising a liquid nitrogen tank body 1, wherein any one of the above-mentioned liquid nitrogen tank brackets is arranged in the liquid nitrogen tank body 1.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A liquid nitrogen tank bracket, characterized in that: The invention comprises a bottom plate (57) arranged in a liquid nitrogen tank body (1), a plurality of partitions (58) being fixedly arranged on the bottom plate (57) to form a plurality of independent storage spaces (6), a net rack (51) being rotatably arranged on the upper ends of the plurality of partitions (58), a notch (59) being provided on the net rack (51), and when the net rack (51) rotates in the liquid nitrogen tank body (1), the storage spaces (6) can be exposed one by one at the notch (59).

2. A liquid nitrogen tank support according to claim 1, characterized in that: A handle (52) is fixedly provided on one side of the upper net rack (51) away from the partition (58), and a through hole (3) is formed on the handle (52).

3. A liquid nitrogen tank support according to claim 1, characterized in that: A set gap is provided between the upper end of the partition plate (58) and the upper net frame (51).

4. A liquid nitrogen tank support according to claim 1, characterized in that: The storage space (6) is divided into equal parts, and the opening size of the notch (59) corresponds to the size of the angle of the equal division of the storage space (6).

5. A liquid nitrogen tank support according to claim 2, characterized in that: The upper net rack (51) comprises a net plate (511), the notch (59) is provided on the net plate (511), the edge of the net plate (511) is fixedly connected with a surrounding plate (512) away from the bottom plate (57), and the handle (52) is arranged on the surrounding plate (512).

6. A liquid nitrogen tank support according to claim 1, characterized in that: A support frame (2) is provided at the bottom of the base plate (57).

7. A liquid nitrogen tank support according to claim 6, characterized in that: A liquid-passing gap (4) is provided between the peripheral side of the bottom plate (57) and the inner wall of the liquid nitrogen tank body (1).

8. The liquid nitrogen tank support according to claim 1, characterized in that: The partition (58) is rotatably connected to the net frame (51) via a shaft sleeve assembly, the shaft sleeve assembly comprising a central axis (55) fixedly connected to the bottom plate (57) and a fixed sleeve (56) fixedly connected to the net frame (51), the fixed sleeve (56) being sleeved on the central axis (55), the fixed sleeve (56) and the central axis (55) being rotatably arranged via a bearing (53), and the outer surface of the central axis (55) being fixedly connected to a plurality of partitions (58).

9. A liquid nitrogen tank with a bracket, characterized in that: It comprises a liquid nitrogen tank body (1), wherein a liquid nitrogen tank support according to any one of claims 1 to 8 is arranged in the liquid nitrogen tank body (1).

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