Liquid nitrogen refrigeration sample storage equipment

Abstract

The utility model discloses a liquid nitrogen refrigeration sample storage device which comprises a liquid nitrogen tank assembly, a storage frame assembly is arranged in the liquid nitrogen tank assembly, the storage frame assembly can rotate in the liquid nitrogen tank assembly and can store samples, a refrigeration assembly is arranged in the liquid nitrogen tank assembly, and the refrigeration assembly is arranged on the storage frame assembly. The refrigeration assembly can refrigerate the interior of the liquid nitrogen tank assembly. The liquid nitrogen storage device has the advantages that the storage rack assembly can be rotated to be matched with the storage channel to store and take samples through an external gripper, a mechanical arm does not need to be arranged in the liquid nitrogen tank, damage caused by the fact that mechanical components are in a low-temperature state for a long time is avoided, and the storage rack assembly can be used for storing and taking samples through cold insulation of the internal refrigeration assembly. And the liquid nitrogen can be directly conveyed into the refrigeration assembly through the conveying pipeline, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample storage, in particular to a liquid nitrogen refrigeration sample storage device. Background Art

[0002] Biological sample cryogenic storage equipment is an important basic equipment for sample storage at present. Usually, biological samples such as blood, stem cells, immune cells, cryotubes, etc. are placed in a sample box, and the basket in the liquid nitrogen tank can cryogenically freeze the sample box.

[0003] The publication number is CN202110990457.1, and the application date is August 26, 2021. For the rotary cage type ultra-low temperature biological sample automatic access system, the sample storage method is rotary drum type, but during the process of accessing samples, a robotic arm is set at the central axis position of the storage area for tube picking operation. However, since the storage area is an ultra-low temperature environment, the electrical components of the robotic arm are in the ultra-low temperature environment for a long time and are easily damaged, which is likely to affect the access of samples; currently, when using liquid nitrogen refrigeration, the evaporation rate in the tank is relatively fast, resulting in a large consumption of liquid nitrogen and high costs. Therefore, the inventor designed a liquid nitrogen refrigeration sample storage device. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. Such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the problems existing in the above or the prior art, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a liquid nitrogen refrigeration sample storage device, which can cooperate with an access channel through a rotating storage rack assembly to access samples using an external gripper, without setting the robotic arm inside the liquid nitrogen tank, avoiding damage caused by mechanical components being in a low temperature state for a long time, and through heat preservation of the internal refrigeration component, avoiding rapid evaporation of liquid nitrogen, thereby reducing the usage amount of liquid nitrogen, and through a delivery pipeline, liquid nitrogen can be directly delivered into the refrigeration component, which is convenient and fast.

[0007] To solve the above technical problems, the utility model provides the following technical solution: A liquid nitrogen refrigeration sample storage device, which includes a liquid nitrogen tank assembly. A storage rack assembly is arranged inside the liquid nitrogen tank assembly. The storage rack assembly can rotate inside the liquid nitrogen tank assembly and can store samples. A refrigeration component is arranged inside the liquid nitrogen tank assembly, and the refrigeration component is arranged on the storage rack assembly. The refrigeration component can refrigerate the liquid nitrogen tank assembly.

[0008] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, it further includes a delivery pipeline which passes through the liquid nitrogen tank assembly and is connected to the refrigeration assembly, and the delivery pipeline can deliver liquid nitrogen into the refrigeration assembly.

[0009] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, the refrigeration assembly includes a storage tank which is composed of a double-layer housing, and the interior of the double-layer housing is a first hollow cavity. Liquid nitrogen can be stored in the storage tank, and the first hollow cavity can keep the liquid nitrogen cold.

[0010] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, the storage rack assembly includes a driving member and a turntable storage member; the driving member is connected to the turntable storage member, and the driving member can drive the turntable storage member to rotate within the liquid nitrogen tank assembly.

[0011] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, the driving member includes a rotating shaft, a rotating shaft driving member, and a rotating shaft support seat; the rotating shaft driving member is arranged at the upper end of the liquid nitrogen tank assembly, the upper end of the rotating shaft passes through the liquid nitrogen tank assembly and is connected to the rotating shaft driving member, the lower end of the rotating shaft is connected to the rotating shaft support seat, and the rotating shaft support seat is arranged at the inner bottom end of the liquid nitrogen tank assembly.

[0012] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, the turntable storage member includes a rotating shaft, a turntable, and a basket; the turntable is arranged on the rotating shaft, the turntable is arranged below the refrigeration assembly, and multiple groups of baskets are circumferentially arranged on the turntable, and the baskets can store samples.

[0013] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, multiple groups of sample slots are vertically opened on the basket, and samples can be stored in the sample slots.

[0014] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, the liquid nitrogen tank assembly includes a liquid nitrogen tank and a tank cover; the tank cover is arranged above the liquid nitrogen tank, the tank cover can seal the liquid nitrogen tank, and the delivery pipeline is arranged on the tank cover.

[0015] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, an access channel is opened on the liquid nitrogen tank, a basket is arranged inside the liquid nitrogen tank, the basket can correspond to the access channel, and an external shoveling mechanism can shovel the samples on the basket through the access channel.

[0016] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, the liquid nitrogen tank includes an inner housing, an outer housing, and a second hollow cavity; the outer housing is arranged on the outside of the inner housing, and the second hollow cavity is arranged between the inner housing and the outer housing, and the second hollow cavity can keep the samples on the storage rack assembly warm.

[0017] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, wherein: liquid nitrogen can be placed in the second hollow cavity or it is a vacuum cavity.

[0018] As a preferred embodiment of the liquid nitrogen refrigeration sample storage device of the present utility model, wherein: multiple adjustable support seats are arranged at the bottom of the liquid nitrogen tank assembly. The adjustable support seats can support the liquid nitrogen tank assembly and can level the liquid nitrogen tank assembly.

[0019] Advantages of the present utility model: By rotating the storage rack assembly, the present utility model can cooperate with the access channel to access samples using an external gripper, without setting a robotic arm inside the liquid nitrogen tank, avoiding damage to mechanical components caused by long-term exposure to low temperatures. And by thermally insulating the internal refrigeration component, the rapid evaporation of liquid nitrogen is avoided, thereby reducing the consumption of liquid nitrogen. Moreover, liquid nitrogen can be directly transported into the refrigeration component through a delivery pipeline, which is convenient and fast. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0021] Figure 1 It is an overall schematic diagram of the liquid nitrogen refrigeration sample storage device.

[0022] Figure 2 It is an exploded schematic diagram of the liquid nitrogen refrigeration sample storage device.

[0023] Figure 3 It is a cross-sectional view of the liquid nitrogen refrigeration sample storage device.

[0024] Reference numerals: liquid nitrogen tank assembly, 1; storage rack assembly, 2; refrigeration component, 3; delivery pipeline, 4; storage tank, 31; first hollow cavity, 32; driving member, 21; turntable storage member, 22; rotating shaft, 211; rotating shaft driving member, 212; rotating shaft support seat, 213; turntable, 221; basket, 222; sample slot, 2221; liquid nitrogen tank, 11; tank lid, 12; access channel, 13; inner housing, 111; outer housing, 112; second hollow cavity, 113; Detailed Embodiments

[0025] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed embodiments of the present utility model with reference to the drawings in the specification.

[0026] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is separate from or mutually exclusive of other embodiments.

[0028] Embodiment 1

[0029] Referring to Figures 1-2 , which is the first embodiment of the present utility model. This embodiment provides a liquid nitrogen refrigeration sample storage device, which includes a liquid nitrogen tank assembly 1, a storage rack assembly 2, and a refrigeration assembly 3. The refrigeration assembly 3 can refrigerate the liquid nitrogen tank assembly 1 through the storage rack assembly 2, and samples can be stored through the storage rack assembly 2.

[0030] Specifically, it includes a liquid nitrogen tank assembly 1. A storage rack assembly 2 is arranged inside the liquid nitrogen tank assembly 1. The storage rack assembly 2 can rotate inside the liquid nitrogen tank assembly 1 and can store samples. A refrigeration assembly 3 is arranged inside the liquid nitrogen tank assembly 1, and the refrigeration assembly 3 is arranged on the storage rack assembly 2. The refrigeration assembly 3 can refrigerate the inside of the liquid nitrogen tank assembly 1.

[0031] Preferably, the storage rack assembly 2 can rotate inside the liquid nitrogen tank assembly 1. A refrigeration assembly 3 is arranged at the upper end of the storage rack assembly 2, and the storage rack assembly 2 can drive the refrigeration assembly 3 to rotate.

[0032] In summary, the present utility model can refrigerate the inside of the liquid nitrogen tank assembly 1 by placing liquid nitrogen in the refrigeration assembly 3, store samples through the storage rack assembly 2, keep the inside of the tank warm through the liquid nitrogen tank assembly 1, and reduce the usage amount of liquid nitrogen by placing liquid nitrogen in the refrigeration assembly 3 and keeping the liquid nitrogen cold.

[0033] Embodiment 2

[0034] Referring to Figures 1-3 , which is the second embodiment of the present utility model. In the previous embodiment, the liquid nitrogen refrigeration sample storage device includes a liquid nitrogen tank assembly 1, a storage rack assembly 2, and a refrigeration assembly 3. The refrigeration assembly 3 can refrigerate the liquid nitrogen tank assembly 1 through the storage rack assembly 2, and samples can be stored through the storage rack assembly 2.

[0035] Specifically, it includes a liquid nitrogen tank assembly 1, in which a storage rack assembly 2 is arranged. The storage rack assembly 2 can rotate within the liquid nitrogen tank assembly 1 and can store samples. A refrigeration assembly 3 is arranged within the liquid nitrogen tank assembly 1, and the refrigeration assembly 3 is arranged on the storage rack assembly 2. The refrigeration assembly 3 can refrigerate the interior of the liquid nitrogen tank assembly 1.

[0036] Preferably, the storage rack assembly 2 can rotate within the liquid nitrogen tank assembly 1. A refrigeration assembly 3 is arranged at the upper end of the storage rack assembly 2, and the storage rack assembly 2 can drive the refrigeration assembly 3 to rotate.

[0037] Furthermore, it also includes a delivery pipeline 4. The delivery pipeline 4 passes through the liquid nitrogen tank assembly 1 and is connected to the refrigeration assembly 3. The delivery pipeline 4 can deliver liquid nitrogen into the refrigeration assembly 3.

[0038] Preferably, one end of the delivery pipeline 4 is connected to an external liquid storage tank, and the other end passes through the liquid nitrogen tank assembly 1 and is connected to the refrigeration assembly 3.

[0039] Furthermore, the refrigeration assembly 3 includes a storage tank 31. The storage tank 31 is composed of a double-layer housing, and the interior of the double-layer housing is a first hollow cavity 32. Liquid nitrogen can be stored in the storage tank 31, and the first hollow cavity 32 can keep the liquid nitrogen cold.

[0040] Preferably, liquid nitrogen can be stored in the storage tank 31. Through the setting of the first hollow cavity 32, the evaporation rate of the liquid nitrogen in the storage tank 31 can be reduced.

[0041] Preferably, liquid nitrogen can be delivered into the interior of the storage tank 31 through the delivery pipeline 4.

[0042] Furthermore, the storage rack assembly 2 includes a driving member 21 and a turntable storage member 22; the driving member 21 is connected to the turntable storage member 22, and the driving member 21 can drive the turntable storage member 22 to rotate within the liquid nitrogen tank assembly 1.

[0043] Preferably, the driving member 21 can drive the turntable storage member 22 and the refrigeration assembly 3 to rotate. Through the turntable storage member 22, the samples can be driven to rotate and can be docked with the access channel 13.

[0044] Furthermore, the driving member 21 includes a rotating shaft 211, a rotating shaft driving member 212, and a rotating shaft support seat 213; the rotating shaft driving member 212 is arranged at the upper end of the liquid nitrogen tank assembly 1. The upper end of the rotating shaft 211 passes through the liquid nitrogen tank assembly 1 and is connected to the rotating shaft driving member 212. The lower end of the rotating shaft 211 is connected to the rotating shaft support seat 213, and the rotating shaft support seat 213 is arranged at the bottom end inside the liquid nitrogen tank assembly 1.

[0045] Preferably, the rotating shaft driving member 212 can be driven by a servo motor.

[0046] Further, the turntable storage member 22 includes a rotating shaft 211, a turntable 221, and a basket 222; the rotating shaft 211 is provided with the turntable 221, the turntable 221 is arranged below the refrigeration assembly 3, and multiple groups of baskets 222 are circumferentially arranged on the turntable 221, and the baskets 222 can store samples.

[0047] Preferably, the rotating shaft driving member 212 can drive the rotating shaft 211 to rotate along the rotating shaft support seat 213, the rotating shaft 211 can drive the turntable 221 to rotate, the turntable 221 drives the basket 222 to rotate, and the basket 222 can correspond to the access channel 13, which is convenient for the external shoveling mechanism to extract the samples on the basket.

[0048] Further, multiple groups of sample slots 2221 are vertically opened on the basket 222, and the sample slots 2221 can store samples.

[0049] Further, the liquid nitrogen tank assembly 1 includes a liquid nitrogen tank 11 and a tank cover 12; the tank cover 12 is arranged above the liquid nitrogen tank 11, the tank cover 12 can seal the liquid nitrogen tank 11, and a delivery pipeline 4 is arranged on the tank cover 12.

[0050] Further, an access channel 13 is opened on the liquid nitrogen tank 11, a basket 222 is arranged inside the liquid nitrogen tank 11, the basket 222 can correspond to the access channel 13, and an external shoveling mechanism can shovel the samples on the basket 222 through the access channel 13.

[0051] Further, the liquid nitrogen tank 11 includes an inner housing 111, an outer housing 112, and a second hollow cavity 113; the outer side of the inner housing 111 is provided with the outer housing 112, and the second hollow cavity 113 is arranged between the inner housing 111 and the outer housing 112, and the second hollow cavity 113 can keep the samples on the storage rack assembly 2 warm.

[0052] Preferably, through the arrangement of the inner housing 111, the outer housing 112, and the second hollow cavity 113, the inside of the liquid nitrogen tank 11 can be insulated, avoiding heat exchange, and preventing the internal samples from being damaged due to temperature changes.

[0053] Further, liquid nitrogen can be placed in the second hollow cavity 113 or it can be a vacuum cavity; this can better insulate the inside of the liquid nitrogen tank 11.

[0054] Further, multiple groups of adjustable support seats are arranged at the bottom of the liquid nitrogen tank assembly 1, the adjustable support seats can support the liquid nitrogen tank assembly 1, and the adjustable support seats can level the liquid nitrogen tank assembly 1.

[0055] Preferably, by setting the adjustable support seats, the unevenness of the local ground level can be adjusted, and the adjustable support seats can support the liquid nitrogen tank assembly 1.

[0056] In summary, in the present utility model, by rotating the storage rack assembly 2, it is possible to cooperate with the access channel 13 to access samples using an external gripper, without arranging the robotic arm inside the liquid nitrogen tank, avoiding damage caused by mechanical components being in a low-temperature state for a long time. Moreover, heat preservation is achieved through the double-layer housing of the storage slot 31 and the first hollow cavity 32, preventing rapid evaporation of liquid nitrogen, thereby reducing the consumption of liquid nitrogen. Additionally, liquid nitrogen can be directly transported into the storage slot 31 through the delivery pipeline 4, which is convenient and fast. By setting the liquid nitrogen tank 11 as an inner housing 111 and an outer housing 112, and setting the second hollow cavity 113 as a vacuum cavity, better heat preservation for the internal samples can be achieved.

[0057] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (for example, changes in the dimensions, scales, structures, shapes and proportions of various components, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0058] In addition, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0059] It should be understood that in the development of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A liquid nitrogen refrigeration sample storage device, characterized in that: The invention comprises a liquid nitrogen tank assembly (1), wherein a storage rack assembly (2) is arranged in the liquid nitrogen tank assembly (1), wherein the storage rack assembly (2) can rotate in the liquid nitrogen tank assembly (1) and can store samples, wherein a refrigeration assembly (3) is arranged in the liquid nitrogen tank assembly (1), and the refrigeration assembly (3) is arranged on the storage rack assembly (2), and wherein the refrigeration assembly (3) can refrigerate the liquid nitrogen tank assembly (1).

2. The liquid nitrogen refrigerated sample storage device according to claim 1, characterized in that: It also comprises a delivery pipeline (4), wherein the delivery pipeline (4) passes through the liquid nitrogen tank assembly (1) and is in communication with the refrigeration assembly (3), and the delivery pipeline (4) can deliver liquid nitrogen into the refrigeration assembly (3).

3. The liquid nitrogen refrigerated sample storage device according to claim 1 or 2, characterized in that: The refrigeration component (3) comprises a storage tank (31), the storage tank (31) is composed of a double-layer shell, and the interior of the double-layer shell is a first hollow cavity (32), liquid nitrogen can be stored in the storage tank (31), and the first hollow cavity (32) can keep the liquid nitrogen cold.

4. The liquid nitrogen refrigerated sample storage device according to claim 1, characterized in that: The storage rack assembly (2) comprises a driving member (21) and a turntable storage member (22); the driving member (21) is connected to the turntable storage member (22), and the driving member (21) can drive the turntable storage member (22) to rotate in the liquid nitrogen tank assembly (1).

5. The liquid nitrogen refrigerated sample storage device according to claim 4, characterized in that: The driving member (21) comprises a rotating shaft (211), a rotating shaft driving member (212), and a rotating shaft supporting seat (213); the rotating shaft driving member (212) is arranged at the upper end of the liquid nitrogen tank assembly (1); the upper end of the rotating shaft (211) passes through the liquid nitrogen tank assembly (1) and is connected to the rotating shaft driving member (212); the lower end of the rotating shaft (211) is connected to the rotating shaft supporting seat (213); and the rotating shaft supporting seat (213) is arranged at the bottom end inside the liquid nitrogen tank assembly (1).

6. The liquid nitrogen refrigerated sample storage device according to claim 4, characterized in that: The turntable storage element (22) comprises a rotating shaft (211), a turntable (221), and a basket (222); a turntable (221) is arranged on the rotating shaft (211), the turntable (221) is arranged below the refrigeration assembly (3), and a plurality of groups of baskets (222) are arranged on the circumference of the turntable (221), and the baskets (222) can store samples.

7. The liquid nitrogen refrigerated sample storage device according to claim 6, characterized in that: The basket (222) is vertically provided with a plurality of sample slots (2221), and samples can be stored in the sample slots (2221).

8. The liquid nitrogen refrigerated sample storage device according to claim 1, characterized in that: The liquid nitrogen tank assembly (1) comprises a liquid nitrogen tank (11) and a tank cover (12); the tank cover (12) is arranged above the liquid nitrogen tank (11), the tank cover (12) can seal the liquid nitrogen tank (11), and a conveying pipeline (4) is arranged on the tank cover (12).

9. The liquid nitrogen refrigerated sample storage device according to claim 8, characterized in that: The liquid nitrogen tank (11) is provided with an access channel (13), a basket (222) is provided inside the liquid nitrogen tank (11), the basket (222) can correspond to the access channel (13), and an external scooping mechanism can scoop samples on the basket (222) through the access channel (13).

10. The liquid nitrogen refrigerated sample storage device according to claim 8 or 9, characterized in that: The liquid nitrogen tank (11) comprises an inner shell (111), an outer shell (112), and a second hollow cavity (113); the outer shell (112) is arranged on the outer side of the inner shell (111), and the second hollow cavity (113) is arranged between the inner shell (111) and the outer shell (112); the second hollow cavity (113) can keep the samples on the storage rack assembly (2) warm.

11. The liquid nitrogen refrigerated sample storage device according to claim 10, characterized in that: The second hollow cavity (113) may contain liquid nitrogen or be a vacuum cavity.

12. The liquid nitrogen refrigerated sample storage device according to claim 1, characterized in that: A plurality of groups of adjustable support seats are arranged at the bottom of the liquid nitrogen tank assembly (1); the adjustable support seats can support the liquid nitrogen tank assembly (1), and the adjustable support seats can perform a leveling operation on the liquid nitrogen tank assembly (1).

Images