A rack suitable for liquid nitrogen tank and sample storage device

Abstract

The utility model relates to experimental equipment field discloses a kind of storage rack suitable for liquid nitrogen tank, including shelf unit, drawer unit and locking unit, shelf unit includes shelf body and handle, and shelf body has multiple installation sites;Drawer unit includes multiple storage compartments compatible with installation site, and storage compartment is slidably connected with shelf body and corresponds with installation site one by one.Storage compartment and shelf body are slidably connected, facilitate the access operation of sample, improve the operation convenience of experimental personnel;When storing sample, storage rack is placed into liquid nitrogen tank, liquid nitrogen enters storage compartment, guarantees sample storage quality;Locking element is arranged between shelf body and storage compartment, the relative position between fixed storage compartment and shelf body is guaranteed, the structural stability of the whole of storage rack is guaranteed, avoid that storage compartment slips off when storage rack moves, guarantee the sample storage security;Storage rack is hooked on liquid nitrogen tank using handle.The utility model further provides a kind of sample storage device.

Description

Technical Field

[0001] This utility model relates to the technical field of experimental equipment and its peripheral supporting facilities, and in particular to a shelf and sample storage device suitable for liquid nitrogen tanks. Background Technology

[0002] In the fields of cryobiology research and biological sample preservation, traditional liquid nitrogen storage often employs a simple operating procedure: the sample to be stored (such as cell cryopreservation tubes, tissue samples, etc.) is neatly placed in a gauze bag, and one end of a nylon rope or cotton thread is tied tightly to the bag opening, while the other end is fixed to the edge of the liquid nitrogen container, allowing the gauze bag to hang naturally in the liquid nitrogen environment inside the container. This method has significant advantages in terms of low cost and low operating threshold due to the lack of additional specialized equipment and readily available materials, and has been widely used in laboratories and small-scale preservation scenarios.

[0003] However, as the number of samples increases and storage requirements upgrade, its operational drawbacks gradually become apparent, severely restricting storage efficiency and security. On the one hand, the gauze bags lack standardized classification labels and fixed storage structures. When the sample volume reaches dozens or even hundreds of bags, the bags are randomly distributed in the container, and staff need to search for each one to identify the target sample. This is not only time-consuming and laborious, but may also cause a large amount of liquid nitrogen to evaporate due to repeated opening of the container, increasing energy consumption and operational risks. On the other hand, the thin rope used for hanging is made of soft material with poor toughness. During long-term storage or repeated handling, it is very easy for the bags to cross and entangle or even knot due to airflow disturbances and bag shaking in the container. This not only increases the difficulty of sample handling, but may also cause adjacent samples to be accidentally bumped during pulling, resulting in the cryopreservation tube falling off and being damaged. In addition, some gauze bags may float above the liquid surface due to uneven placement of samples or residual air, forming a "floating island" phenomenon. This results in uneven force on the bottom and top samples in the bag, with only some samples being immersed in liquid nitrogen. It is impossible to maintain a uniform low-temperature environment, which can easily cause problems such as decreased cell activity and tissue deterioration during long-term storage, seriously affecting the quality of sample preservation.

[0004] Therefore, how to change the current situation in which the use of gauze bags to confirm target samples when storing biological samples in liquid nitrogen is difficult, inconvenient to operate, and easily affects the quality of sample preservation has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a shelf and sample storage device suitable for liquid nitrogen tanks, so as to solve the problems existing in the above-mentioned related technologies, improve the ease of operation of liquid nitrogen storage of biological samples, ensure the quality of sample preservation, and improve experimental efficiency.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a storage rack suitable for liquid nitrogen tanks, comprising: The frame unit includes a frame body and a handle. The frame body can extend into the liquid nitrogen tank and has multiple mounting positions. The handle is located on the top of the frame body and can be hooked onto the liquid nitrogen tank. The drawer unit includes multiple storage compartments adapted to the mounting positions. The storage compartments are slidably connected to the frame body and correspond one-to-one with the mounting positions. Liquid nitrogen from the liquid nitrogen tank can enter the storage compartments. A locking unit, comprising a locking element, wherein the locking element is capable of fixing the relative position of the frame body and the storage compartment.

[0007] Preferably, both the frame body and the storage compartments are made of mesh material.

[0008] Preferably, the mounting position of the frame body is provided with a slide rail, and the storage compartment has a slider adapted to the slide rail. The slider is slidably disposed in the slide rail to realize the sliding connection between the storage compartment and the frame body.

[0009] Preferably, the storage compartment has a top-opening structure, and a handle is provided on the side wall of the storage compartment.

[0010] Preferably, the locking element adopts a snap-fit ​​structure, which is disposed on one of the frame body and the storage compartment, and can lock the other of the frame body and the storage compartment to fix the relative position of the storage compartment and the frame body. The locking element corresponds one-to-one with the storage compartment and the mounting position.

[0011] Preferably, the handle is located in the middle of the top plate of the frame body; The handle has an inverted U-shaped hook structure. The longer end of the handle is connected to the top of the frame body, and the shorter end of the handle can be hooked onto the liquid nitrogen tank.

[0012] Preferably, the handle is made of metal and is covered with a protective layer made of plastic or silicone.

[0013] Preferably, the shelf for liquid nitrogen tanks further includes an identification unit, the identification unit including an identification card, the identification card being detachably connected to the storage compartment; The storage compartment has a slot that is compatible with the identification card. When the identification card is connected to the storage compartment, the identification card is plugged into the storage compartment.

[0014] This utility model also provides a sample storage device, including a liquid nitrogen tank and the aforementioned shelf suitable for the liquid nitrogen tank, wherein the shelf extends into the liquid nitrogen tank.

[0015] Preferably, the liquid nitrogen tank has a groove adapted to the handle, with the end of the handle away from the frame body located within the groove.

[0016] This utility model achieves the following technical effects compared to related technologies: The storage rack of this utility model, applicable to liquid nitrogen tanks, includes a rack unit, a drawer unit, and a locking unit. The rack unit includes a rack body and a handle. The rack body can extend into the liquid nitrogen tank and has multiple mounting positions. The handle is located on the top of the rack body and can be hooked onto the liquid nitrogen tank. The drawer unit includes multiple storage compartments adapted to the mounting positions. The storage compartments are slidably connected to the rack body and correspond one-to-one with the mounting positions. Liquid nitrogen from the liquid nitrogen tank can enter the storage compartments. The locking unit includes locking elements that can fix the relative positions of the rack body and the storage compartments.

[0017] This utility model relates to a storage rack suitable for liquid nitrogen tanks. The storage compartments can accommodate experimental samples, and are slidably connected to the rack body for convenient sample storage and retrieval, improving the ease of operation for researchers and avoiding the problem of ropes easily tangling and affecting sample storage and retrieval in existing technologies. When storing samples, the rack is placed inside the liquid nitrogen tank, and liquid nitrogen enters the storage compartments, ensuring the sample is evenly and thoroughly immersed in the liquid nitrogen. Compared to existing technologies where some samples accumulate on the surface of the liquid nitrogen and are not completely frozen, this utility model's rack ensures sample preservation. Quality is ensured; furthermore, this invention incorporates locking elements between the frame body and the storage compartments to fix their relative positions, guaranteeing the overall structural stability of the rack and preventing compartment displacement or slippage during rack movement, thus ensuring sample preservation safety. Additionally, the frame unit features handles that can be hooked onto liquid nitrogen tanks, further enhancing operational convenience, improving experimental efficiency, and ensuring the stability and reliability of sample storage.

[0018] At the same time, this utility model also provides a sample storage device, including the above-mentioned shelf suitable for liquid nitrogen tank. Naturally, the sample storage device of this utility model can also achieve the above-mentioned beneficial effects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an isometric structural schematic diagram of the sample storage device disclosed in the embodiment of this utility model; Figure 2 This is an isometric structural schematic diagram of the sample storage device disclosed in the embodiments of this utility model from another perspective.

[0021] In the diagram: 1. Frame body; 2. Handle; 3. Storage compartment; 4. Locking element; 5. Slide rail; 6. Pull handle. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The purpose of this invention is to provide a shelf and sample storage device suitable for liquid nitrogen tanks, so as to solve the problems existing in the above-mentioned related technologies, improve the ease of operation of liquid nitrogen storage of biological samples, ensure the quality of sample preservation, and improve experimental efficiency.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1 This embodiment provides a storage rack suitable for liquid nitrogen tanks. Please refer to [reference needed]. Figures 1-2 The system includes a frame unit, a drawer unit, and a locking unit. The frame unit includes a frame body 1 and a handle 2. The frame body 1 can extend into the liquid nitrogen tank and has multiple mounting positions. The handle 2 is located on the top of the frame body 1 and can be hooked onto the liquid nitrogen tank. The drawer unit includes multiple storage compartments 3 that are adapted to the mounting positions. The storage compartments 3 are slidably connected to the frame body 1 and correspond one-to-one with the mounting positions. Liquid nitrogen from the liquid nitrogen tank can enter the storage compartments 3. The locking unit includes a locking element 4, which can fix the relative position of the frame body 1 and the storage compartments 3.

[0026] This utility model relates to a storage rack suitable for liquid nitrogen tanks. The storage compartment 3 can accommodate experimental samples. The storage compartment 3 is slidably connected to the rack body 1, facilitating sample storage and retrieval, improving the ease of operation for researchers, and avoiding the problem of ropes easily tangling and affecting sample storage and retrieval in existing technologies. When storing samples, the rack is placed inside the liquid nitrogen tank, and liquid nitrogen enters the storage compartment 3, ensuring the sample is evenly and thoroughly immersed in the liquid nitrogen. Compared to existing technologies where some samples accumulate on the surface of the liquid nitrogen and are not completely frozen, this utility model's rack ensures the quality of sample preservation. Meanwhile, this utility model provides a locking element 4 between the frame body 1 and the storage compartment 3 to fix the relative position between the storage compartment 3 and the frame body 1, ensuring the overall structural stability of the rack and preventing the storage compartment 3 from shifting or slipping when the rack is moved, thus ensuring the safety of sample preservation. In addition, the rack unit of this utility model is provided with a handle 2 on the frame body 1, which can be used to hook the rack onto the liquid nitrogen tank, further improving the ease of operation of the rack, increasing the efficiency of experimental operations, and ensuring the stability and reliability of the rack for storing samples.

[0027] In this specific embodiment, both the frame body 1 and the storage compartment 3 can be made of a mesh material. The holes in the mesh material form flow channels, allowing liquid nitrogen to enter the storage compartment 3 evenly and contact the sample, improving the fluidity and wetting effect of the liquid nitrogen and ensuring the quality of sample preservation. In other specific embodiments achievable with this invention, flow holes can also be provided on the frame body 1 and the storage compartment 3 to allow liquid nitrogen to smoothly enter the storage compartment 3 and contact the experimental sample, ensuring the quality of sample preservation.

[0028] To improve the movement accuracy of the storage compartment 3, a slide rail 5 is provided at the mounting position of the frame body 1. The storage compartment 3 has a slider that matches the slide rail 5, and the slider is slidably disposed within the slide rail 5 to achieve a sliding connection between the storage compartment 3 and the frame body 1. The sliding connection between the storage compartment 3 and the slide rail 5 of the frame body 1 via the slider improves the reciprocating motion accuracy of the storage compartment 3, prevents the storage compartment 3 from deviating from the movement track, and further improves the convenience of sample storage and retrieval operations.

[0029] The storage compartment 3 has a top-opening structure for easy sample storage and retrieval. A handle 6 is provided on the side wall of the storage compartment 3, which allows the experimenter to slide the storage compartment 3, improving the ease of operation.

[0030] It should be noted that the storage compartments 3 can be arranged sequentially along the height of the frame body 1, or other arrangements can be used to meet different sample storage needs, while ensuring that the frame body 1 can extend into the liquid nitrogen tank. The number of storage compartments 3 can be adjusted according to actual needs to meet sample storage and specific experimental requirements, and to match the specifications of the liquid nitrogen tank. In practical applications, the frame body 1 can be made of cryogenic stainless steel or aluminum alloy to ensure the structural strength of the rack and make full use of the space inside the liquid nitrogen tank.

[0031] In other specific embodiments achievable with this invention, a divider is provided within the storage compartment 3 to separate different storage areas, facilitating the partitioned storage of smaller experimental samples and enhancing the adaptability of the storage compartment 3. The divider can be detachably connected to the storage compartment 3, allowing for easy assembly and disassembly. When storing larger experimental samples, the divider can be removed to meet different sample storage conditions, further improving the flexibility and adaptability of the storage compartment 3. In practical applications, the divider and storage compartment 3 can be connected via a plug-in connection, facilitating easy assembly and disassembly and further improving the ease of operation of the shelf.

[0032] In this specific embodiment, the locking element 4 adopts a snap-fit ​​structure. The snap-fit ​​structure is set on one of the frame body 1 and the storage compartment 3, and can lock the frame body 1 and the storage compartment 3 to fix the relative position of the storage compartment 3 and the frame body 1. Taking the snap-fit ​​structure set on the frame body 1 as an example, one end of the snap-fit ​​structure is connected to the frame body 1, and the other end of the snap-fit ​​structure can engage with the storage compartment 3. When the storage compartment 3 slides into place, the snap-fit ​​structure engages with the storage compartment 3 to fix the relative position of the storage compartment 3 and the frame body 1, preventing the storage compartment 3 from slipping off. When it is necessary to store or retrieve experimental samples, the experimenter applies a force to the snap-fit ​​structure to separate it from the storage compartment 3, that is, to slide the storage compartment 3 for operation. Similarly, when the snap-fit ​​structure is connected to the storage compartment 3, the snap-fit ​​structure can engage with the frame body 1 to fix the relative position of the two, which will not be described in detail here.

[0033] In practical applications, the locking element 4 can also adopt a pin structure. The locking tongue of the pin structure is set on one of the frame body 1 and the storage compartment 3, and the locking hole of the pin structure is set on the other one of the frame body 1 and the storage compartment 3. The locking tongue can be inserted and connected to the locking hole to fix the relative position of the frame body 1 and the storage compartment 3, ensuring the stability of sample storage. In practical applications, those skilled in the art can select the appropriate type of locking element 4 according to the actual working conditions to meet different sample storage and experimental operation requirements and improve the flexibility and adaptability of the shelf.

[0034] It should also be noted that the locking element 4 corresponds one-to-one with the storage compartment 3 and the mounting position. When operating one of the storage compartments 3, it does not affect the stability of the other storage compartments 3, thus ensuring the reliability of the shelf.

[0035] In practical applications, the handle 2 can be positioned in the middle of the top plate of the frame body 1. When the handle 2 is hooked onto the liquid nitrogen tank, it improves the uniformity of force distribution and structural stability of the shelf. In other specific embodiments achievable with this invention, the handle 2 can also be positioned on one side of the top of the frame body 1. This ensures that the handle 2 can be smoothly hooked onto the liquid nitrogen tank while preventing the frame unit from tilting, thus ensuring the overall structural stability of the shelf. In practical applications, the position of the handle 2 can be adjusted according to actual experimental needs.

[0036] In this specific embodiment, the handle 2 is an inverted U-shaped hook structure. The longer end of the handle 2 is connected to the top of the frame body 1, and the shorter end of the handle 2 can be hooked on the liquid nitrogen tank to prevent the handle 2 from slipping off the liquid nitrogen tank, ensuring the reliability of the handle 2 hooking on the liquid nitrogen tank, and thus ensuring the overall structural stability of the shelf.

[0037] More specifically, in this embodiment, the handle 2 is made of high-strength metal and is covered with a protective layer made of plastic or silicone. When the experimenter operates, the protective layer can provide heat insulation and prevent frostbite, ensuring the safety of the shelf while facilitating operation.

[0038] It should also be emphasized that the shelf for liquid nitrogen tanks of this utility model also includes an identification unit. The identification unit includes an identification card, which is detachably connected to the storage compartment 3. The identification card can be used to identify the samples stored in the storage compartment 3, making it convenient for experimental personnel to operate.

[0039] Furthermore, storage compartment 3 has a slot adapted to the identification card. When the identification card is connected to storage compartment 3, the identification card and the storage compartment are interlocked, facilitating the installation and removal of the identification card. When changing experimental samples, the corresponding identification card can be easily replaced, further improving experimental efficiency. The slot in storage compartment 3 facilitates the insertion of identification cards that record sample information within the compartment. Combined with streamlined laboratory sample management, this enables rapid sample location and retrieval, improving sample handling efficiency.

[0040] Example 2 This embodiment provides a sample storage device, including a liquid nitrogen tank, and also includes a shelf suitable for the liquid nitrogen tank as described in Embodiment 1, wherein the shelf suitable for the liquid nitrogen tank extends into the liquid nitrogen tank.

[0041] The sample storage device of this invention utilizes the shelf from Embodiment 1 to store experimental samples. The shelf body 1 is placed inside the liquid nitrogen tank via a drawer unit, and the handle 2 is hooked onto the liquid nitrogen tank to ensure the overall structural stability of the shelf. When storing or retrieving experimental samples, the shelf is lifted using the handle 2 to release the locking element 4, and the sliding storage compartment 3 allows for convenient sample storage and retrieval.

[0042] In this specific embodiment, the liquid nitrogen tank has a groove that is compatible with the handle 2. The end of the handle 2 away from the frame body 1 is located in the groove, which further improves the stability of the connection structure between the shelf and the liquid nitrogen tank and ensures the reliability of sample storage.

[0043] This utility model discloses a storage rack for liquid nitrogen tanks. The drawer unit adopts a modular design with multiple storage compartments 3, which greatly improves the efficiency of sample handling and management. Operators can easily and quickly retrieve any sample without untying the hanging ropes, and the knotted ropes will not affect sample storage, significantly reducing working time and labor intensity. Secondly, the perforated structure of the rack body 1 and the storage compartments 3 enhances the circulation and penetration of liquid nitrogen, ensuring that all samples are evenly and thoroughly immersed in liquid nitrogen. This avoids the problem of some samples accumulating on the surface of liquid nitrogen and not being completely frozen, which is a problem in traditional methods, fundamentally improving the quality and safety of sample preservation. Each storage compartment 3 is equipped with a locking element 4 to ensure the stability of the drawer unit, preventing samples from tipping over or accidentally slipping during movement, reducing operational risks and improving safety. In addition, the handle 2 with a heat-insulating protective layer ensures that operators can safely and conveniently perform low-temperature operations, avoiding the risk of frostbite caused by direct contact with low-temperature metals. At the same time, the setting of the marking unit effectively improves the accuracy and efficiency of sample management, allowing laboratory personnel to quickly locate target samples, greatly improving laboratory operational efficiency.

[0044] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A shelf suitable for liquid nitrogen tanks, characterized in that, include: The frame unit includes a frame body and a handle. The frame body can extend into the liquid nitrogen tank and has multiple mounting positions. The handle is located on the top of the frame body and can be hooked onto the liquid nitrogen tank. The drawer unit includes multiple storage compartments adapted to the mounting positions. The storage compartments are slidably connected to the frame body and correspond one-to-one with the mounting positions. Liquid nitrogen from the liquid nitrogen tank can enter the storage compartments. A locking unit, comprising a locking element, wherein the locking element is capable of fixing the relative position of the frame body and the storage compartment; Both the frame body and the storage compartments are made of mesh material; The locking element adopts a snap-fit ​​structure, which is disposed on one of the frame body and the storage compartment, and can lock the frame body and the other storage compartment to fix the relative position of the storage compartment and the frame body; the locking element corresponds one-to-one with the storage compartment and the mounting position. The storage compartment is equipped with a partition, which is plugged into the storage compartment.

2. The shelf for liquid nitrogen tanks according to claim 1, characterized in that: The mounting position of the frame body is provided with a slide rail, and the storage compartment has a slider adapted to the slide rail. The slider is slidably disposed in the slide rail to realize the sliding connection between the storage compartment and the frame body.

3. The shelf for liquid nitrogen tanks according to claim 1, characterized in that: The storage compartment has an open top and a handle is provided on the side wall of the storage compartment.

4. The shelf for liquid nitrogen tanks according to claim 1, characterized in that: The handle is located in the middle of the top plate of the frame body; The handle has an inverted U-shaped hook structure. The longer end of the handle is connected to the top of the frame body, and the shorter end of the handle can be hooked onto the liquid nitrogen tank.

5. The shelf for liquid nitrogen tanks according to claim 1, characterized in that: The handle is made of metal and is covered with a protective layer made of plastic or silicone.

6. The shelf suitable for liquid nitrogen tanks according to any one of claims 1-5, characterized in that: It also includes an identification unit, which includes an identification card that is detachably connected to the storage compartment. The storage compartment has a slot that is compatible with the identification card. When the identification card is connected to the storage compartment, the identification card is plugged into the storage compartment.

7. A sample storage device, comprising a liquid nitrogen tank, characterized in that: It also includes a shelf for liquid nitrogen tanks as described in any one of claims 1-6, wherein the shelf for liquid nitrogen tanks extends into the liquid nitrogen tank.

8. The sample storage device according to claim 7, characterized in that: The liquid nitrogen tank has a groove adapted to the handle, with the end of the handle away from the frame body located within the groove.

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