Taking and storing support and liquid nitrogen tank

Abstract

The utility model discloses a taking and storing support and a liquid nitrogen container, the taking and storing support comprises a lifting frame, a buffer piece, a flat baffle, a containing frame and a test tube frame; the buffer piece is arranged on the lifting frame; a flat baffle is arranged on the lifting frame in a sleeving mode and abuts against the buffering piece, and a guide wheel is arranged on the side, away from the lifting frame, of the flat baffle. The containing frame comprises a plurality of containing layers, and the containing layers are detachably connected in sequence from top to bottom. The test tube racks are inserted into the corresponding accommodating layers and are used for inserting cell cryopreservation tubes. According to the utility model, the accommodating rack is detachably formed by the plurality of accommodating layers from top to bottom, the test tube rack can be inserted in multiple layers, the space in the liquid nitrogen tank is reasonably utilized, protection and buffering can be provided when the test tube rack is in contact with the inner top wall of the liquid nitrogen tank during extraction through the flat baffle and the buffer piece, and the guide wheel provides sliding guide when being in contact with the inner top wall of the liquid nitrogen tank, so that the test tube rack is convenient to use. And the lifting process is more stable, and shaking is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stem cell preservation, in particular to a storage bracket and a liquid nitrogen tank. Background Art

[0002] In the preservation of stem cells in the medical field, low-temperature preservation is required. Stem cells are placed in -196°C deep cryogenic storage. Under deep cryogenic conditions, the metabolic activity of stem cells is almost stopped. Under correct preservation operations, tissue cells are rarely damaged, and the long-term survival rate of cells is above 80%. Liquid nitrogen tanks are commonly used to preserve stem cell cryopreservation tubes. For example, Chinese Patent 201821511809.0 discloses a liquid nitrogen tank for low-temperature storage of stem cells, including a tank body, the tank body is a hollow structure, and a cover is threadedly connected to the upper side wall of the tank body, a transversely arranged partition is provided on one side wall of the tank body, a through hole is provided in the center of the partition, a transversely arranged upper plate is provided on the upper side wall of the partition, and the side walls of the upper plate are fixedly connected to the side walls of the partition by a fixing device, the upper plate is connected to a transversely arranged bottom plate by a vertically arranged connecting rod, a plurality of jacks are arranged around the side wall of the upper plate, a plurality of arc-shaped grooves matching the jacks are arranged around the upper side wall of the bottom plate, and a first groove opening upward is provided at the bottom of the arc-shaped groove.

[0003] The above-mentioned prior art also has the following disadvantages: the scaffold for stem cell storage can only store cell cryopreservation tubes in a single layer, which makes insufficient use of the internal space of the liquid nitrogen tank, and during the extraction of the scaffold, the cryopreservation tubes are likely to collide with the inner wall, which is insufficient in protection. Therefore, how to store cryopreservation tubes in multiple layers and effectively protect them is a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, to provide a storage rack, and to solve the technical problem of how to store cryopreservation tubes in multiple layers and effectively protect them in the prior art.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, the utility model provides a storage and retrieval bracket, comprising:

[0007] Lifting rack;

[0008] A buffer member, which is arranged on the lifting frame;

[0009] A flat baffle plate, which is mounted on the lifting frame and abuts against the buffer member, and a guide wheel is provided on a side of the flat baffle plate away from the lifting frame;

[0010] A containing frame, comprising a plurality of containing layers, wherein the plurality of containing layers are detachably connected in sequence from top to bottom; and

[0011] The test tube rack is inserted into the corresponding accommodating layer and is used for inserting cell freezing tubes.

[0012] In some embodiments, the buffer component includes an upper limit plate, a buffer pad and a lower limit plate, the upper limit plate and the lower limit plate are both arranged on the lifting frame, the buffer pads are respectively arranged on the side opposite to the upper limit plate and the lower limit plate, and the two buffer pads are respectively abutted against the top and bottom of the flat baffle.

[0013] In some embodiments, the accommodating layer includes a frame, one side of the frame is provided with an opening, and a limiting rod penetrating the opening is inserted into the frame.

[0014] In some embodiments, a buffer strip is disposed on the inner wall of the frame.

[0015] In some embodiments, a screw rod is disposed on the top of the frame, a screw hole is opened on the bottom of the frame, and the outer diameter of the screw rod matches the inner diameter of the screw hole.

[0016] In some embodiments, the test tube rack includes a box body, a hole rack and a cover plate. The hole rack is arranged on the inner side of the box body and has a plurality of holes distributed in an array for inserting cell freezing tubes. The cover plate is inserted into the top of the box body.

[0017] In some embodiments, the flat baffle is tilted upward with an angle of fifteen degrees.

[0018] In some embodiments, strip holes are opened on both sides of the frame, the limiting rod is inserted between the inner sides of the two strip holes, and blocking pieces are vertically arranged at both ends of the limiting rod, and the length of the blocking piece is smaller than the length of the strip hole.

[0019] In some embodiments, a plurality of openings are opened on the outer side of the frame.

[0020] In a second aspect, the utility model further provides a liquid nitrogen tank, comprising a storage and retrieval bracket as described in any one of the above items; and

[0021] A liquid nitrogen tank body, wherein a plurality of storage and retrieval brackets are inserted into the inner side of the liquid nitrogen tank body.

[0022] Compared with the prior art, the access and storage bracket provided by the utility model is a detachable accommodating rack composed of multiple accommodating layers from top to bottom, and can be equipped with multi-layer test tube racks, so as to reasonably utilize the space inside the liquid nitrogen tank, and through the flat baffle and the buffer part, it can provide protection and buffer when contacting the inner top wall of the liquid nitrogen tank during extraction, and the guide wheel provides a sliding guide when contacting the inner top wall of the liquid nitrogen tank, so that the lifting process is smoother and the shaking is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the access and storage bracket provided in an embodiment of the utility model;

[0024] Figure 2 It is a three-dimensional exploded view of the access support provided by the embodiment of the utility model;

[0025] Figure 3 It is a three-dimensional diagram of the accommodation layer provided by the embodiment of the utility model;

[0026] Figure 4 It is a cross-sectional view of a liquid nitrogen tank provided by an embodiment of the utility model;

[0027] Figure 5 This utility model Figure 4 A partial enlarged view of part A.

[0028] Description of reference numerals:

[0029] 1. Lifting rack;

[0030] 2. Buffer; 21. Upper limit plate; 22. Buffer pad; 23. Lower limit plate;

[0031] 3. Flat baffle; 301. Guide wheel;

[0032] 4. accommodating frame; 41. accommodating layer; 411. frame; 412. limiting rod; 4121. blocking piece; 401. opening; 402. buffer strip; 403. screw rod; 404. screw hole; 405. strip hole; 406. through opening;

[0033] 5. test tube rack; 51. box body; 52. hole rack; 53. cover plate; 501. socket;

[0034] 6. Liquid nitrogen tank. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] In order to solve the technical problem of how to store cryogenic tubes in multiple layers and effectively protect them, the utility model provides a storage rack, which can realize the storage of cryogenic tubes in multiple layers and effectively protect them.

[0037] It should be noted that the access bracket described in the present invention is used for but not limited to liquid nitrogen tanks, etc. For the convenience of explanation, in the present invention, only the application of the access bracket to the liquid nitrogen tank is used as an example for explanation. The principle of applying the access bracket to other types of equipment is essentially the same as the principle applied to the liquid nitrogen tank, which will not be repeated here.

[0038] See also Figure 1 , Figure 1 The present invention is a schematic diagram of the structure of a storage and retrieval support in an embodiment of the present invention. The storage and retrieval support includes a lifting frame 1, a buffer member 2, a flat baffle plate 3, a receiving frame 4 and a test tube rack 5; the buffer member 2 is arranged on the lifting frame 1 and is located above the receiving frame 4. During the lifting process, anti-collision protection can be provided; the flat baffle plate 3 is sleeved on the lifting frame 1 and abuts against the buffer member 2, and a guide wheel 301 is arranged on the side of the flat baffle plate 3 away from the lifting frame 1. During the lifting process, the guide wheel 301 first contacts the inner top wall of the liquid nitrogen tank and rolls relative to it. The sliding guide is formed by the movement, and the buffer 2 is used for buffering during the contact to reduce the vibration effect on the accommodating rack 4; the accommodating rack 4 includes a plurality of accommodating layers 41, and the plurality of accommodating layers 41 are detachably connected from top to bottom in sequence. An adjustable multi-layer structure is formed by splicing a plurality of accommodating layers 41 from top to bottom to adapt to the use of liquid nitrogen tanks of different depths; the test tube rack 5 is inserted in the corresponding accommodating layer 41 for inserting cell cryopreservation tubes, and each layer of the accommodating layer 41 is respectively inserted with a test tube rack 5, and the layered storage has a higher space utilization rate.

[0039] In this embodiment, the flat baffle plate 3 is used as the main collision protection member in the lifting process. During the collision, the buffer member 2 is used for buffering to reduce the impact on the accommodating rack 4, and the guide wheel 301 is used for sliding guidance to facilitate its smooth movement out of the liquid nitrogen tank; the accommodating rack 4 is composed of a plurality of accommodating layers 41, which can be combined according to the inner depth of different liquid nitrogen tanks to form a multi-layer structure to insert a plurality of test tube racks 5, and the accommodating layer 41 has a protective effect on the test tube racks 5 inserted therein, and combined with the flat baffle plate 3 and the buffer member 2, the purpose of multi-layer storage of cryopreservation tubes and effective protection is achieved during storage and retrieval.

[0040] In one embodiment, see Figure 2 and Figure 5The buffer member 2 includes an upper limit plate 21, a buffer pad 22 and a lower limit plate 23. The upper limit plate 21 and the lower limit plate 23 are both arranged on the lifting frame 1 to limit the upper and lower positions of the flat baffle 3 respectively. The buffer pads 22 are respectively arranged on the side opposite to the upper limit plate 21 and the lower limit plate 23. The two buffer pads 22 are respectively abutted against the top and bottom of the flat baffle 3. When the flat baffle 3 collides and contacts, longitudinal movement will occur. At this time, it will be pressed against the corresponding buffer pad 22 for elastic buffering.

[0041] Furthermore, in order to facilitate the insertion and limiting of the test tube rack 5, the accommodating layer 41 includes a frame 411, and an opening 401 is opened on one side of the frame 411. The test tube rack 5 is inserted and withdrawn through the opening 401. A limiting rod 412 is inserted into the frame 411 and passes through the opening 401. After insertion, the limiting rod 412 can be inserted to limit the single layer. Similarly, when it needs to be withdrawn, the limiting rod 412 can be withdrawn.

[0042] Furthermore, buffer strips 402 are provided on the inner wall of the frame 411, and the buffer strips 402 are distributed on the left and right side walls, the rear side wall, the inner top wall and the inner bottom wall of the frame 411, forming a wrapping protection for the inserted test tube rack 5 inside the frame 411, thereby improving the buffer protection.

[0043] It should be noted that the buffer strip 402 and the buffer pad 22 are both made of cryogenic series rubber and plastic materials. The diene and nitrile rubber ultra-low temperature insulation system is a high-performance diene elastic foam specially developed for insulation projects under ultra-low temperature working conditions. The cryogenic rubber and plastic can withstand temperatures of -200 to 125°C. The flexible ultra-low temperature insulation system has the inherent characteristic of impact resistance. Its low-temperature elastomer material can absorb the energy of external mechanical impact and vibration to protect the system structure, so that it can provide normal elastic buffering in a liquid nitrogen environment.

[0044] In one embodiment, see Figure 1 and, Figure 2 and Figure 3 In order to quickly disassemble and assemble the multi-layer accommodation layer 41, a screw 403 is provided on the top of the frame 411, and a screw hole 404 is opened at the bottom of the frame 411, and the outer diameter of the screw 403 matches the inner diameter of the screw hole 404. The accommodation layer 41 can be increased by threaded connection between the screw 403 and the screw hole 404, and the accommodation layer 41 can be reduced by separating the screw 403 and the screw hole 404.

[0045] It can be understood that the added containing layer 41 can be connected to the screw hole 404 at the bottom of the containing layer 41 on the upper layer through the screw 403 thereon; in addition, a screw hole 404 is also provided at the bottom of the lifting rack 1 for connection with the screw 403 on the topmost containing layer 41, so that the lifting rack 1 can be separated from the entire containing rack 4. After separation, the containing rack 4 can be used separately as a multi-layer test tube rack 5 support.

[0046] In one embodiment, see Figure 2 In order to improve the protection effect of cell cryopreservation tubes, the test tube rack 5 includes a box body 51, a hole rack 52 and a cover plate 53. The hole rack 52 is arranged on the inner side of the box body 51, and a plurality of insertion holes 501 are arranged in an array on the hole rack 52 for inserting cell cryopreservation tubes to reduce the insertion and shaking of the cell cryopreservation tubes. The cover plate 53 is inserted on the top of the box body 51, and the outer layer protection of the cell cryopreservation tubes is formed by the box body 51 and the cover plate 53.

[0047] It can be understood that in the access bracket, the box body 51 and the cover plate 53 are the first layer of protection, the frame 411 is the second layer of protection, and the flat baffle 3 is the third layer of protection. Elastic materials are also provided between the three layers of protection to mitigate impact, so the protection safety is high.

[0048] In one embodiment, see Figure 4 The flat baffle plate 3 is tilted upward at an angle of fifteen degrees, so that the guide wheel 301 faces upward and is easier to contact the top wall of the liquid nitrogen tank and slide.

[0049] In one embodiment, see Figure 2 and Figure 3 , strip holes 405 are opened on both sides of the frame 411, and the limiting rod 412 is inserted between the inner sides of the two strip holes 405. Blocking pieces 4121 are vertically arranged at both ends of the limiting rod 412, and the length of the blocking piece 4121 is less than the length of the strip hole 405. By rotating the blocking piece 4121 upward and aligning it with the strip hole 405, insertion and withdrawal can be carried out. When the blocking piece 4121 is lowered, the blocking pieces 4121 at both ends are respectively located on the left and right sides of the frame 411, thereby forming a limit, which is convenient for insertion and withdrawal operations.

[0050] In one embodiment, see Figure 1 and Figure 3 The outer side of the frame 411 is provided with a plurality of openings 406 to reduce the coverage area and increase the cooling area of ​​the test tube rack 5 .

[0051] In order to better understand the present invention, the following Figures 1 to 5The technical solution of the utility model is described in detail: in use, the number of accommodating layers 41 is increased or decreased according to the depth of the liquid nitrogen tank. When increasing, the two-layer frame 411 can be connected by threading the screw 403 on the new accommodating layer 41 with the screw hole 404 on the other accommodating layer 41 to form a multi-layer structure distributed up and down; when storing, the cell cryopreservation tube is first inserted into the hole rack 52, and then the cover plate 53 is covered, and the entire test tube rack 5 is inserted into the frame 411. The box body 51 and the cover plate 53 are the first layer of protection, the frame 411 is the second layer of protection, and the flat baffle 3 is the third layer of protection, and elastic materials are provided between the three layers of protection to mitigate impact; when extracting, the lifting frame 1 is pulled up and moved upward, and the guide wheel 301 contacts the inner top wall of the liquid nitrogen tank for sliding guidance, and when in contact, the buffer 2 is elastically buffered to make the lifting process more stable and reduce shaking.

[0052] The utility model further provides a liquid nitrogen tank, comprising the above-mentioned access and storage bracket and a liquid nitrogen tank body 6 , wherein a plurality of the access and storage brackets are inserted into the inner side of the liquid nitrogen tank body 6 .

[0053] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A storage and retrieval bracket, characterized in that: include: Lifting rack; A buffer member, which is arranged on the lifting frame; A flat baffle plate, which is mounted on the lifting frame and abuts against the buffer member, and a guide wheel is provided on a side of the flat baffle plate away from the lifting frame; A containing frame, comprising a plurality of containing layers, wherein the plurality of containing layers are detachably connected in sequence from top to bottom; as well as The test tube rack is inserted into the corresponding accommodating layer and is used for inserting cell freezing tubes.

2. The access support according to claim 1, characterized in that: The buffer component includes an upper limit plate, a buffer pad and a lower limit plate. The upper limit plate and the lower limit plate are both arranged on the lifting frame. The buffer pads are respectively arranged on the side opposite to the upper limit plate and the lower limit plate. The two buffer pads are respectively abutted against the top and bottom of the flat baffle.

3. The access support according to claim 2, characterized in that: The accommodating layer comprises a frame, one side of the frame is provided with an opening, and a limiting rod penetrating the opening is inserted into the frame.

4. The access support according to claim 3, characterized in that: A buffer strip is arranged on the inner wall of the frame.

5. The access support according to claim 4, characterized in that: A screw rod is arranged on the top of the frame, a screw hole is opened on the bottom of the frame, and the outer diameter of the screw rod matches the inner diameter of the screw hole.

6. The access support according to claim 5, characterized in that: The test tube rack comprises a box body, a hole rack and a cover plate. The hole rack is arranged on the inner side of the box body and has a plurality of insertion holes distributed in an array for inserting cell freezing tubes. The cover plate is inserted into the top of the box body.

7. The access support according to claim 6, characterized in that: The flat baffle is tilted upward, and the tilt angle is fifteen degrees.

8. The access support according to claim 7, characterized in that: Strip holes are opened on both sides of the frame, the limiting rod is inserted between the inner sides of the two strip holes, and blocking pieces are vertically arranged at both ends of the limiting rod, and the length of the blocking piece is smaller than the length of the strip hole.

9. The access support according to claim 8, characterized in that: The outer side of the frame is provided with a plurality of openings.

10. A liquid nitrogen tank, characterized in that: comprising the access bracket as claimed in any one of claims 1 to 9; and A liquid nitrogen tank body, wherein a plurality of storage and retrieval brackets are inserted into the inner side of the liquid nitrogen tank body.

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