Automatic liquid nitrogen storage tank

Abstract

The utility model relates to the technical field of liquid nitrogen storage, in particular to an automatic liquid nitrogen storage tank. Comprising a tank body, an annular cryopreservation frame, a driving part and an in-tank automation mechanism, the opening of the tank body is in butt joint with an external sample conveying mechanism; the annular cryopreservation frame is mounted in the tank body and is used for storing samples; the tank body is provided with an operation space for forming avoidance with the annular cryopreservation frame; the driving part is used for driving the annular cryopreservation frame to rotate in the tank body and is in butt joint with the operation space in sequence, and the in-tank automatic mechanism is installed in the tank body and is used for storing and taking samples on the annular cryopreservation frame in the operation space according to a sample storing and taking instruction. The liquid nitrogen storage tank is simple in structure, large in sample storage amount, high in automation degree and stable in operation, and the sample storage and taking efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid nitrogen storage technical field especially, relates to a kind of automatic liquid nitrogen storage tank. BACKGROUND

[0002] At present, the temperature in the known liquid nitrogen tank is-196℃, and a cryopreservation rack is arranged inside to facilitate the storage and retrieval of samples. The samples are stored in cryopreservation boxes or macaroni tubes and placed in the cryopreservation rack for cryopreservation. When the sample needs to be taken out, the personnel need to use liquid nitrogen gloves and manually identify the cryopreservation racks in the liquid nitrogen tank before lifting the cryopreservation rack to select the desired sample. A single cryopreservation rack can hold up to 10 kg under full load, and the liquid nitrogen temperature is low and has the characteristics of excluding air. The liquid nitrogen tank on the market has the problems of difficult manual taking and placing, inaccurate sample searching, and risk of suffocation of personnel. To improve the space utilization of the automatic liquid nitrogen storage device, the density of the cryopreservation racks is high. When storing and retrieving samples, the automatic mechanism is often placed in the liquid nitrogen tank to prevent the samples from losing temperature. The conventional automatic structure moves with the cryopreservation rack as a unit, and the number of movement mechanisms is large, the structure is complex, the failure rate is high, and the maintenance is difficult. To avoid this problem, the automatic mechanism is located outside the liquid nitrogen tank, and the tank uses a honeycomb structure. Although this solves the problem of failure, it also brings the problem of low storage and retrieval efficiency, making it difficult to achieve both. Therefore, it is urgent to solve this problem.

[0003] The above content is only used to assist in understanding the technical solution of the utility model and does not mean that the above content is the closest prior art. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem of providing an automatic liquid nitrogen storage tank. The liquid nitrogen storage tank not only has a simple structure and large sample storage capacity, but also has a high degree of automation, stable operation and improved sample storage and retrieval efficiency.

[0005] To achieve the purpose, the technical solution of the utility model is as follows: an automatic liquid nitrogen storage tank, comprising: a tank body, an annular cryopreservation rack, a driving part and an in-tank automatic mechanism; the opening of the tank body is connected to an external sample conveying mechanism; the annular cryopreservation rack is installed inside the tank body and used for storing samples; the tank body is provided with an operation space which avoids the annular cryopreservation rack; the driving part is used to drive the annular cryopreservation rack to rotate in the tank body and sequentially connect to the operation space; the in-tank automatic mechanism is installed in the tank body and used to store and retrieve the samples on the annular cryopreservation rack according to the sample storage and retrieval instruction at the operation space.

[0006] Preferably, the annular freezing rack comprises an outer ring rotating freezing rack and an inner ring rotating freezing rack; the centers of the outer ring rotating freezing rack and the inner ring rotating freezing rack are at the same position, and the diameter of the outer ring rotating freezing rack is larger than that of the inner ring rotating freezing rack; the outer ring rotating freezing rack is provided with an outer notch; the inner ring rotating freezing rack is provided with an inner notch; and the outer notch and the inner notch jointly form the operation space in the tank.

[0007] Preferably, the outer notch and the inner notch are both provided in a fan-shaped structure.

[0008] Preferably, the outer ring rotating freezing rack is provided with at least three layers of outer ring storage plates; one side of the storage plate is connected with the vertical support plate of the outer ring rotating freezing rack, and the storage plate is provided with at least two storage grooves for storing freezing boxes.

[0009] Preferably, the inner ring rotating freezing rack is provided with at least three layers of inner ring storage plates; one side of the inner ring storage plate is connected with the vertical support frame of the inner ring rotating freezing rack, and the inner ring storage plate is provided with one storage groove for storing freezing boxes.

[0010] Preferably, the automatic mechanism in the tank clamps the freezing box on the annular freezing rack in the outer notch and / or the inner notch.

[0011] Preferably, the outer ring storage plate and the inner ring storage plate are both provided in a fan-shaped structure.

[0012] Preferably, the driving part is connected with the bottom of the vertical support plate of the outer ring rotating freezing rack and the bottom of the vertical support frame of the inner ring rotating freezing rack respectively, and drives the vertical support plate of the outer ring rotating freezing rack and the vertical support frame of the inner ring rotating freezing rack to rotate in the tank.

[0013] The beneficial effects of the utility model are embodied in:

[0014] (1) The liquid nitrogen storage tank provided by the utility model is internally provided with a rotating annular freezing rack, which not only fully utilizes the internal space of the tank, but also improves the sample storage capacity of the tank, and the annular freezing rack is provided with an activity space for the automatic mechanism to directly store and take samples, thereby improving the sample storage and taking efficiency.

[0015] (2) The liquid nitrogen storage tank provided by the utility model is simple in structure, large in sample storage capacity, high in automation degree, stable in operation, and high in sample storage and taking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The figure is a structural schematic view of the utility model;

[0017] Fig. 2 The figure is a structural schematic view of the utility model;

[0018] Fig. 3 The utility model discloses a ring cryopreservation rack side structure schematic.

[0019] Mark explanation:

[0020] 10, tank body;20, outer ring rotary cryopreservation rack;21, outer notch;22, outer ring storage plate;221, storage groove;30, inner ring rotary cryopreservation rack;31, inner notch;32, inner ring storage plate;321, storage groove. Specific implementation

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Embodiment

[0023] Reference Figs. 1-3 As shown:

[0024] The utility model provides a kind of automatic liquid nitrogen storage tank, comprising: tank body 10, ring cryopreservation rack, drive part and in-tank automation mechanism.

[0025] The opening of tank body 10 is connected with external sample conveying mechanism, and external sample conveying mechanism transports sample at the opening of tank body 10. Ring cryopreservation rack is installed inside tank body 10, for storing sample. Tank body 10 is equipped with operating space that is kept away from ring cryopreservation rack;Drive part is used to drive ring cryopreservation rack to rotate in tank body 10, and drive ring cryopreservation rack and operating space are connected. In-tank automation mechanism is installed in tank body 10, and sample on ring cryopreservation rack is accessed according to sample access instruction at operating space.

[0026] By setting ring cryopreservation rack, so that the internal space of tank body 10 is fully utilized, more samples can be stored, and operating space that is kept away from ring cryopreservation rack is set, so that in-tank automation mechanism has working space, so that sample on cryopreservation rack can be accessed without taking cryopreservation rack from the inside of tank body 10, improve the efficiency of sample access.

[0027] In order to make the sample access more efficient, the annular freezing rack is composed of the outer ring rotating freezing rack 20 and the inner ring rotating freezing rack 30. The centers of the outer ring rotating freezing rack 20 and the inner ring rotating freezing rack 30 are the same, and the diameter of the outer ring rotating freezing rack 20 is larger than that of the inner ring rotating freezing rack 30. The outer ring rotating freezing rack 20 is provided with an outer notch 21, and the inner ring rotating freezing rack 30 is provided with an inner notch 32; the outer notch 21 and the inner notch 32 jointly constitute the operation space in the tank body 10.

[0028] The outer notch 21 and the inner notch 22 are both provided in a fan-shaped structure; the outer ring storage plate 22 and the inner ring storage plate 32 are both provided in a fan-shaped structure, so as to fully utilize the internal space of the tank body 10.

[0029] The outer ring rotating freezing rack 20 is provided with at least three layers of outer ring storage plates 22; one side of the storage plate 22 is connected with the vertical support plate of the outer ring rotating freezing rack 20, and the storage plate 22 is provided with at least two storage grooves 221 for storing freezing boxes.

[0030] The inner ring rotating freezing rack 30 is provided with at least three layers of inner ring storage plates 32; one side of the inner ring storage plate 32 is connected with the vertical support frame of the inner ring rotating freezing rack 30, and the inner ring storage plate 32 is provided with one storage groove 321 for storing freezing boxes.

[0031] The in-tank automatic mechanism clamps the freezing boxes on the annular freezing rack in the outer notch 21 and / or the inner notch 22.

[0032] The driving part is connected with the bottom of the vertical support plate of the outer ring rotating freezing rack 20 and the bottom of the vertical support frame of the inner ring rotating freezing rack 30 respectively, and drives the vertical support plate of the outer ring rotating freezing rack 20 and the vertical support frame of the inner ring rotating freezing rack 30 to rotate in the tank body 10.

[0033] In specific application, when the sample on the outer ring rotating freezing rack 20 needs to be taken or placed, the inner notch 32 of the inner ring rotating freezing rack 30 is automatically aligned with and avoids the position of the sample to be taken on the outer ring rotating freezing rack 20, so that the in-tank automatic mechanism can smoothly take or place the sample on the outer ring rotating freezing rack 20.

[0034] When the sample on the inner ring rotating freezing rack 30 needs to be taken or placed, the automatic mechanism directly clamps the sample. The automatic mechanism located in the central axis part of the tank body 10 takes the freezing box of the inner ring rotating freezing rack 30 after rotation, and lifts the freezing box to the opening of the liquid nitrogen tank body 10. The tank cover of the tank body 10 is automatically opened, and the external automatic mechanism clamps the taken freezing box to the transfer area. After the freezing box is selected in the transfer area, the remaining samples return to the inside of the tank body 10 in the opposite direction, the selected samples are transferred to the transfer channel door, and the transfer channel door is opened to complete the delivery action.

[0035] It should be noted that if the description of "first", "second" and the like is involved in the utility model embodiment, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, "multiple" refers to more than two. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist.

[0036] The above is only a preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An automated liquid nitrogen storage tank, characterized in that, include: The container (10), the annular cryopreservation rack, the drive unit, and the in-container automation mechanism are configured. The opening of the container (10) is connected to an external sample transfer mechanism. The annular cryopreservation rack is installed inside the container (10) for storing samples. The container (10) is provided with an operating space that avoids the annular cryopreservation rack. The drive unit is used to drive the annular cryopreservation rack to rotate inside the container (10) and connect to the operating space in sequence. The in-container automation mechanism is installed inside the container (10) and performs sample storage and retrieval on the annular cryopreservation rack at the operating space according to the sample storage and retrieval instructions.

2. The automated liquid nitrogen storage tank according to claim 1, characterized in that, The annular cryopreservation rack includes an outer rotating cryopreservation rack (20) and an inner rotating cryopreservation rack (30); the outer rotating cryopreservation rack (20) and the inner rotating cryopreservation rack (30) have the same center position, and the diameter of the outer rotating cryopreservation rack (20) is larger than the diameter of the inner rotating cryopreservation rack (30); the outer rotating cryopreservation rack (20) is provided with an outer notch (21); the inner rotating cryopreservation rack (30) is provided with an inner notch (31); the outer notch (21) and the inner notch (31) together constitute the operating space inside the tank (10).

3. An automated liquid nitrogen storage tank according to claim 2, characterized in that, Both the outer notch (21) and the inner notch (31) are configured as fan-shaped structures.

4. An automated liquid nitrogen storage tank according to claim 3, characterized in that, The outer ring rotating cryopreservation rack (20) is provided with at least three layers of outer ring storage plates (22); one side of the storage plate (22) is connected to the vertical support plate of the outer ring rotating cryopreservation rack (20), and the storage plate (22) is provided with at least two storage slots (221) for storing cryopreservation boxes.

5. An automated liquid nitrogen storage tank according to claim 4, characterized in that, Each inner ring rotating cryopreservation rack (30) is provided with at least three layers of inner ring storage plates (32); one side of the inner ring storage plate (32) is connected to the vertical support frame of the inner ring rotating cryopreservation rack (30), and the inner ring storage plate (32) is provided with a storage slot (321) for storing cryopreservation boxes.

6. An automated liquid nitrogen storage tank according to claim 4 or 5, characterized in that, The in-tank automated mechanism grips the cryopreservation box on the annular cryopreservation rack in the outer notch (21) and / or the inner notch (31).

7. An automated liquid nitrogen storage tank according to claim 5, characterized in that, Both the outer ring storage plate (22) and the inner ring storage plate (32) are configured as fan-shaped.

8. An automated liquid nitrogen storage tank according to claim 7, characterized in that, The drive unit is connected to the bottom of the vertical support plate of the outer ring rotating cryopreservation rack (20) and the bottom of the vertical support frame of the inner ring rotating cryopreservation rack (30), respectively, and drives the vertical support plate of the outer ring rotating cryopreservation rack (20) and the vertical support frame of the inner ring rotating cryopreservation rack (30) to rotate inside the tank (10).

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