Low-temperature sample transfer trolley

Abstract

The utility model relates to a low-temperature sample transfer trolley which comprises an outer shell, an inner shell, a plurality of bottom supporting columns, a plurality of side wall supporting columns, an inner cold guide frame, a basket positioning plate, a plurality of heat preservation covers and a plurality of cryopreservation baskets. The inner shell is arranged in the outer shell, and the multiple bottom supporting columns are connected between the lower end face of the inner shell and the bottom face of the outer shell. The side wall supporting columns are connected between the outer wall of the inner shell and the inner wall of the outer shell. The interior of the inner shell is connected with the internal cold conduction frame, the multiple cryopreservation lifting baskets are placed in the internal cold conduction frame, the lifting basket positioning plate is arranged at the upper end of the internal cold conduction frame, and the heat preservation cover is arranged at the upper end of the lifting basket positioning plate. The utility model aims to provide the low-temperature sample transfer trolley for overcoming the existing defects, the low-temperature sample transfer trolley can be in butt joint with an automatic manipulator while ensuring that the storage chamber is at deep hypothermia, and the manipulator can clamp a thermal insulation cover and a cryopreservation basket.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature storage and transportation technology, and in particular to a sample low-temperature transportation trolley. Background Technology

[0002] In the existing cryogenic and ultra-cryogenic cryopreservation and transportation, the use of automated equipment is increasing. However, there is only a conceptual demand for full-process automation of storage, and there is no solution for high-throughput storage during transportation. Furthermore, the intermediate link of the transportation cart has not yet been integrated with automation, and the method of locating samples on the cart remains unresolved.

[0003] Currently, transport carts are still basically based on the standard rack stacking method. This means that each box needs to be moved back and forth multiple times to achieve large-scale transport. However, the most common method for deep cryogenic and low-temperature storage is still cryopreservation baskets. This requires solving the problem of direct storage after transporting the baskets. As for sample protection, the entire chamber is currently open without internal partitioning.

[0004] Therefore, a sample cryogenic transport vehicle that can be docked with automated equipment is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the existing defects and provide a sample low-temperature transport cart that can be docked with an automated robotic arm, which can grip insulated covers and cryopreservation baskets.

[0006] The technical solution to achieve the above objectives is:

[0007] A sample cryogenic transport cart includes an outer shell, an inner shell, multiple bottom support columns, multiple side wall support columns, an internal cooling guide frame, a basket positioning plate, multiple insulation covers, and multiple cryopreservation baskets.

[0008] The inner shell is disposed inside the outer shell, and a plurality of bottom support columns are connected between the lower end face of the inner shell and the bottom surface of the outer shell; a plurality of side wall support columns are connected between the outer wall of the inner shell and the inner wall of the outer shell; an internal cooling rack is connected inside the inner shell, and a plurality of cryopreservation baskets are placed inside the internal cooling rack; a basket positioning plate is provided at the upper end of the internal cooling rack, and an insulation cover is provided at the upper end of the basket positioning plate.

[0009] Preferably, a vacuum layer is formed between the outer wall of the inner shell and the inner wall of the outer shell.

[0010] Preferably, the two ends of the bottom support column are first round-headed support blocks, which are welded to the inner wall of the outer shell and the outer wall of the inner shell, respectively.

[0011] Preferably, the sidewall support column is tapered, with the tapered end connected to the inner wall of the outer shell via a tapered support block, and the other end connected to the outer wall of the inner shell via a second round support block.

[0012] Preferably, the internal cooling frame includes two wall panels, two wall panels, a bottom plate, and multiple intermediate partition plates; the two wall panels and the two wall panels form a frame, the multiple intermediate partition plates are connected between the frame to divide the frame into several isolation chambers, and the bottom plate is connected to the lower end of the frame.

[0013] Preferably, the basket positioning plate includes a fixed plate, multiple front side plates, multiple lateral side plates, a second positioning plate, and multiple second intermediate plates; the fixed plate, multiple front side plates, multiple lateral side plates, and the second positioning plate form a deep groove component, and multiple second intermediate plates are connected between the deep groove component, dividing it into several isolation chambers; multiple V-grooves are connected to both sides of the second positioning plate; a placement groove is opened on the upper end surface of the fixed plate for placing the heat preservation cover.

[0014] Preferably, the heat-insulating cover has an internal heat-insulating layer; the heat-insulating layer is made of rigid polyurethane foam.

[0015] Preferably, the outer wall of the inner shell is connected to a molded support, and the lower end face of the inner shell is connected to a reinforcing rib. Preferably, the bottom support column and the side wall support column are both made of fiberglass, a material with low thermal conductivity.

[0016] Preferably, the lower end face of the housing is connected to two omnidirectional wheels and two universal wheels, and the upper end of the right side wall of the housing is connected to a handle.

[0017] The beneficial effects of this utility model are as follows: This sample cryogenic transport trolley is equipped with positioning devices such as V-grooves and placement slots, enabling it to dock with an automated robotic arm. The robotic arm can grip the insulated cover and cryopreservation basket. The independent area design ensures that retrieving a cryopreservation basket from one chamber will not affect the sample temperature in other chambers, thus protecting the safety of other samples. The versatility of storage methods allows for direct placement of cryopreservation baskets or placement within the chambers using standard cryopreservation racks. The retrieval methods are also diverse, allowing for both manual and automated retrieval. Multiple insulation features ensure that the storage chambers are kept at a deep cryogenic state, thereby protecting the samples in the storage area. The basket positioning device, made of a low thermal conductivity material, isolates the sample storage area, and the independent insulated cover further enhances sample safety. Attached Figure Description

[0018] Figure 1 This is an isometric view of the sample cryogenic transport trolley of this utility model;

[0019] Figure 2This is a cross-sectional view of the sample cryogenic transport cart of this utility model;

[0020] Figure 3 This is a top view of the sample cryogenic transport cart of this utility model;

[0021] Figure 4 This is an isometric view of the internal cooling guide frame of this utility model;

[0022] Figure 5 This is a top view of the internal cooling guide frame of this utility model;

[0023] Figure 6 This is a cross-sectional view of the internal cooling guide frame of this utility model;

[0024] Figure 7 This is an isometric drawing of the basket positioning plate of this utility model;

[0025] Figure 8 This is a cross-sectional view of the basket positioning plate of this utility model;

[0026] Figure 9 This is a top view of the basket positioning plate of this utility model;

[0027] Figure 10 This is an isometric drawing of the heat-insulating cover of this utility model;

[0028] Figure 11 This is a side view of the heat-insulating cover of this utility model;

[0029] Figure 12 This is an isometric view of the cryopreservation basket of this utility model;

[0030] Figure 13 This is an isometric view of the molded support of this utility model;

[0031] Figure 14 This is an isometric view of the second positioning plate of this utility model;

[0032] Figure 15 This is an isometric view of the fixing plate of this utility model;

[0033] Figure 16 This is an isometric drawing of the V-groove component of this utility model.

[0034] In the diagram: 1. Outer shell; 2. Inner shell; 3. Bottom support column; 4. Side wall support column; 5. Omnidirectional wheel; 6. Universal wheel; 7. Handle; 8. Internal cooling rack; 9. Basket positioning plate; 10. Insulation cover; 11. Insulation layer; 12. Frozen storage basket; 13. Vacuum layer; 14. Molding support; 15. First round-head support block; 16. Conical support block; 17. Second round-head support block; 18. Wall panel one; 19. Wall panel two; 20. Bottom plate; 21. Intermediate partition plate; 22. Fixing plate; 23. Front side plate; 24. Lateral side plate; 25. Second positioning plate; 26. Second intermediate plate; 27. V-groove; 28. Placement groove; 29. ​​Reinforcing rib. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] like Figure 1-16 As shown, a sample cryogenic transport trolley includes an outer shell 1, an inner shell 2, multiple bottom support columns 3, multiple side wall support columns 4, an internal cooling guide rack 8, a basket positioning plate 9, multiple insulation covers 10, and multiple cryopreservation baskets 12.

[0038] like Figure 2 As shown, the inner shell 2 is disposed inside the outer shell 1. A vacuum layer 13 is formed between the outer wall of the inner shell 2 and the inner wall of the outer shell 1. The outer shell 1 and the inner shell 2 are welded together to form an internal hollow layer. After vacuuming, a vacuum layer 13 is formed between the outer shell 1 and the inner shell 2, thereby improving the heat preservation effect of the internal cavity.

[0039] like Figure 2As shown, multiple bottom support columns 3 are connected between the lower end face of the inner shell 2 and the bottom surface of the outer shell 1; multiple side wall support columns 4 are connected between the outer wall of the inner shell 2 and the inner wall of the outer shell 1; the two ends of the bottom support columns 3 are first round-headed support blocks 15, which are welded to the inner wall of the outer shell 1 and the outer wall of the inner shell 2 respectively. One end of the side wall support column 4 is set as a cone shape, and the other end is round-headed. The cone end is connected to the inner wall of the outer shell 1 through a cone-headed support block 16, and the round end is connected to the outer wall of the inner shell 2 through a second round-headed support block 17. The lower end face of the inner shell 2 is connected with reinforcing ribs 29, and the outer wall of the inner shell 2 is connected with molded supports 14.

[0040] Specifically, the bottom support 3 and side wall support 4 set inside the vacuum layer 13 mainly serve to strengthen the structure and prevent the shell from deforming during vacuuming.

[0041] The bottom support column 3 has two ends of a first round-headed support block 15, which is welded to the inner and outer shells. A reinforcing rib 29 is provided at the bottom of the inner shell 2 to strengthen the inner shell and increase the overall rigidity and strength of the bottom.

[0042] The side wall support column 4 is provided with a cone head support block 16 at the cone end and a second round head support block 17 at the round head end. The inner shell 2 is provided with a shaped support 14 on the side wall, which further increases the strength and rigidity of the inner shell. The above measures enhance the overall rigidity and strength of the side wall.

[0043] Specifically, the bottom support column 3 is hollow inside and made of fiberglass with low thermal conductivity. The wall thickness is controlled below 2mm to reduce the contact area between the inner and outer shells, reduce heat conduction, and thus reduce internal liquid nitrogen consumption. The side support column 4 is made of fiberglass with low thermal conductivity and is hollow inside. The conical shape is a process treatment when the inner shell is fitted inside the outer shell during the welding of the inner and outer shells, which facilitates the forming and processing of the inner and outer shells. The overall shape reduces heat conduction and reduces liquid nitrogen consumption in the internal cavity.

[0044] Specifically, the lower end face of the outer shell 1 is connected to two omnidirectional wheels 5 and two universal wheels 6 respectively; the upper end of the right side wall of the outer shell 1 is connected to a handle 7; the inner shell 2 is connected to an internal cooling rack 8, and multiple cryopreservation baskets 12 are placed inside the internal cooling rack 8. A basket positioning plate 9 is set at the upper end of the internal cooling rack 8, and an insulation cover 10 is set at the upper end of the basket positioning plate 9.

[0045] Specifically, the omnidirectional wheel 5 and the universal wheel 6 are fixed to the bottom of the outer shell 1, and the handle 7 is fixed to the side wall of the outer shell 1, which facilitates the pushing of the vehicle.

[0046] like Figure 4 , 5As shown in Figure 6, the internal cooling frame 8 includes two wall panels 18, two wall panels 19, a bottom plate 20, and multiple intermediate partition plates 21. The two wall panels 18 and two wall panels 19 form a frame, and the multiple intermediate partition plates 21 are connected between the frames to divide the frame into several isolation chambers. The bottom plate 20 is connected to the lower end of the frame.

[0047] Specifically, the area below the bottom plate 20 of the internal cooling rack 8 is the liquid nitrogen zone. This plate has holes to facilitate the rapid flow of liquid nitrogen to the bottom of each isolation chamber during filling, ensuring the entire chamber is filled with cold liquid nitrogen and allowing for easy observation of the amount added. The bottom of the first wall plate 18, the second wall plate 19, and the middle isolation plate 20 of the internal cooling rack 8 are all located in the liquid nitrogen zone. This arrangement primarily achieves cooling, thereby ensuring that the upper part of the chamber also reaches a deep cryogenic state, thus protecting the sample. The entire chamber of the internal cooling rack 8 is divided into multiple independent storage chambers by the middle isolation plate 21. This protects samples in other non-accessible areas when storing or retrieving samples.

[0048] like Figure 7 , 8 As shown in Figure 9, the basket positioning plate 9 includes a fixed plate 22, multiple front side plates 23, multiple lateral side plates 24, a second positioning plate 25, and multiple second intermediate plates 26; the fixed plate 22, multiple front side plates 23, multiple lateral side plates 24, and the second positioning plate 25 form a deep groove component, and multiple second intermediate plates 26 are connected between the deep groove components, dividing the deep groove component into several isolation chambers; multiple V-grooves 27 are connected to both sides of the second positioning plate 25; a placement groove 28 is opened on the upper end surface of the fixed plate 22 for placing the heat preservation cover 10.

[0049] Specifically, the second intermediate plate 26 is located above the internal cooling rack 8 and is fixed to the upper edge of the storage chamber; the basket positioning plate 9, composed of the fixing plate 22, the front side plate 23, the lateral side plate 24, the second intermediate plate 26, and the second positioning plate 25, is made of low thermal conductivity material, which satisfies the need for heat preservation while possessing good strength and rigidity; the fixing plate 22, the front side plate 23, the lateral side plate 24, and the second positioning plate 25 form a chamber, and the second intermediate plate 26 isolates this chamber into multiple small independent chambers, so that samples in other areas will not be affected when storing or retrieving samples; the V-groove 27 is fixed to the second positioning plate 25, and the V-groove 27 is provided with a guide slope, which is located on the basket placement side, mainly for guiding the basket; such as Figure 9 As shown, each chamber has three V-grooves 27, which together form a basket retrieval and positioning system, thereby fixing the position of the cryopreservation basket 12 in the storage chamber so that the automated robotic arm can retrieve the cryopreservation basket 12.

[0050] like Figure 10 , 11As shown, the insulation cover 10 has an insulation layer 11 inside, and both the insulation cover 10 and the insulation layer 11 are made of materials with low thermal conductivity. In this embodiment, the insulation cover 10 is made of fiberglass, and the insulation layer 11 is made of rigid polyurethane foam. The insulation cover 10 and the insulation layer 11 are placed in the placement groove 28 on the fixing plate 22. Preferably, the placement groove 28 is precision machined to better fit the insulation cover 10, preventing the cold air inside the chamber from being transferred to the outside, thereby reducing liquid nitrogen consumption; at the same time, the placement groove 28 positions the insulation cover 10 to facilitate docking with an automated robotic arm, thus allowing the insulation cover 10 to be opened smoothly.

[0051] This cryogenic transport cart is equipped with positioning devices such as V-groove 27 and placement groove 28, enabling docking with an automated robotic arm. The robotic arm can grasp insulated covers and cryopreservation baskets. The independent area design ensures that retrieving a cryopreservation basket 12 from one chamber will not affect the sample temperature in other chambers, thus protecting the safety of other samples. It offers diverse storage methods: cryopreservation baskets can be placed directly, or standard cryopreservation racks can be used within the chambers. It also offers multiple retrieval methods, including manual and automated retrieval. Multiple insulation features ensure the storage chambers are kept at a deep cryogenic state, thereby protecting the samples in the storage area. The basket positioning device, made of low thermal conductivity material, isolates the sample storage area, and the independent insulated cover further enhances sample safety.

[0052] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sample cryogenic transport cart, characterized in that, It includes an outer shell (1), an inner shell (2), multiple bottom support columns (3), multiple side wall support columns (4), an internal cooling rack (8), a basket positioning plate (9), multiple insulation covers (10), and multiple cryopreservation baskets (12); The inner shell (2) is disposed inside the outer shell (1), and a plurality of bottom support columns (3) are connected between the lower end face of the inner shell (2) and the bottom surface of the outer shell (1); a plurality of side wall support columns (4) are connected between the outer wall of the inner shell (2) and the inner wall of the outer shell (1); the inner shell (2) is connected to the internal cooling rack (8), and a plurality of cryopreservation baskets (12) are placed inside the internal cooling rack (8); the basket positioning plate (9) is provided at the upper end of the internal cooling rack (8), and the heat preservation cover (10) is provided at the upper end of the basket positioning plate (9).

2. The sample cryogenic transport cart according to claim 1, characterized in that, A vacuum layer (13) is formed between the outer wall of the inner shell (2) and the inner wall of the outer shell (1).

3. The sample cryogenic transport cart according to claim 1, characterized in that, The bottom support column (3) has two ends of a first round-headed support block (15), which is welded to the inner wall of the outer shell (1) and the outer wall of the inner shell (2), respectively.

4. The sample cryogenic transport cart according to claim 1, characterized in that, The side wall support column (4) is tapered, with the tapered end connected to the inner wall of the outer shell (1) via a tapered support block (16), and the other end connected to the outer wall of the inner shell (2) via a second round head support block (17).

5. The sample cryogenic transport cart according to claim 1, characterized in that, The internal cooling rack (8) includes two wall panels (18), two wall panels (19), a bottom plate (20), and multiple intermediate partition plates (21); the two wall panels (18) and the two wall panels (19) form a frame, and the multiple intermediate partition plates (21) are connected between the frames to divide the frames into several isolation chambers, and the bottom plate (20) is connected to the lower end of the frames.

6. The sample cryogenic transport cart according to claim 1, characterized in that, The basket positioning plate (9) includes a fixed plate (22), multiple front side plates (23), multiple lateral side plates (24), a second positioning plate (25), and multiple second intermediate plates (26); the fixed plate (22), multiple front side plates (23), multiple lateral side plates (24), and the second positioning plate (25) form a deep groove, and multiple second intermediate plates (26) are connected between the deep groove to divide it into several isolation chambers. Multiple V-grooves (27) are connected to both sides of the second positioning plate (25); a placement groove (28) is opened on the upper surface of the fixed plate (22) for placing the heat preservation cover (10).

7. The sample cryogenic transport cart according to claim 1, characterized in that, The heat insulation cover (10) has an insulation layer (11) inside; the insulation layer (11) is made of rigid polyurethane foam.

8. The sample cryogenic transport cart according to claim 1, characterized in that, The outer wall of the inner shell (2) is connected to a molded support (14), and the lower end face of the inner shell (2) is connected to a reinforcing rib (29).

9. The sample cryogenic transport cart according to claim 1, characterized in that, Both the bottom support column (3) and the side wall support column (4) are made of fiberglass, a material with low thermal conductivity.

10. The sample cryogenic transport cart according to claim 1, characterized in that, The lower end face of the outer shell (1) is connected to two omnidirectional wheels (5) and two universal wheels (6), and the upper end of the right side wall of the outer shell (1) is connected to a handle (7).

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