A cryogenic storage container

Abstract

The utility model belongs to the field of liquid nitrogen container discloses a low temperature storage container, including top layer, interlayer, bottom layer and stand, top layer, interlayer, bottom layer and stand are sheet metal spare, top layer, interlayer and bottom layer are connected with stand through the clamping structure respectively. The utility model's clamping structure sets up the plug -in piece and the limiting portion in concentration, can make the limiting portion when the connecting plate part one and the connecting plate part two carry out the clamping can be synchronous and be in place, and the limiting portion cooperation hole portion's stop retreats part can realize the stop retreat effect, and the assembly is convenient, also avoided the stop retreat structure and needed to set up on the stand and led to the situation of carrying out the secondary processing to the stand, reduced the processing procedure, improved the degree of simplification of container surface structure.

Description

Technical Field

[0001] This utility model belongs to the field of liquid nitrogen container technology, specifically relating to a cryogenic storage container. Background Technology

[0002] Liquid nitrogen containers are important cryogenic storage containers for biological materials, widely used in fields such as biology, medicine, and animal husbandry. Multiple layers of tubular containers are typically used to store biological sample boxes within liquid nitrogen containers.

[0003] In the existing technology, there is a prefabricated lifting cylinder. The prefabricated lifting cylinder can solve the problems of high welding cost and inability to test welding quality and stability of the welded type. One structure of the prefabricated lifting cylinder includes a column, a top plate, a bottom plate, a partition, and a handle. However, the assembly structure of this prefabricated lifting cylinder is relatively complex and scattered, which means that the structure needs to be processed and assembled separately on the top plate, bottom plate, partition, and column. The structure is not simple and the disassembly and assembly are also relatively difficult. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a low-temperature storage container to solve the problem that the complex and dispersed assembly structure of existing low-temperature storage containers makes them difficult to process and assemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cryogenic storage container includes a top layer, a partition, a bottom layer, and a column, wherein the top layer, partition, bottom layer, and column are sheet metal parts;

[0007] The top layer, partition layer and bottom layer are respectively connected to the column through a snap-fit ​​structure. The snap-fit ​​structure includes a first connecting plate part and a second connecting plate part that cooperate with each other. One of the first connecting plate part and the second connecting plate part is disposed on the top layer, partition layer and bottom layer, and the other is disposed on the column.

[0008] The first connecting plate is provided with a first snap-fit ​​part, and the second connecting plate is provided with a second snap-fit ​​part. The first connecting plate and the second connecting plate are fitted together, and the first snap-fit ​​part and the second snap-fit ​​part are engaged and connected.

[0009] The first snap-fit ​​portion includes a hole in the first connecting plate portion, and a fastening tab is formed on one side edge of the hole. The fastening tab and the main body of the first connecting plate portion form an insertion interface. A stop-retraction portion is formed on the edge of the hole opposite the fastening tab. The second snap-fit ​​portion includes a plug-in piece and a limiting portion formed on the second connecting plate portion. The plug-in piece enters and exits the insertion interface from the hole. When the plug-in piece is inserted into the insertion interface, the stop-retraction portion cooperates with the limiting portion to stop and limit the movement.

[0010] In a possible implementation, in the connected state, the fastening part and the second connecting plate part are located on the same plane, and the plug-in piece and the first connecting plate part are located on the same plane.

[0011] In a possible implementation, the limiting part is a protruding structure formed on the connecting plate part two, and the anti-retraction part is the flat edge of the hole part;

[0012] Alternatively, the limiting part is a protruding structure formed on the connecting plate part two, and the anti-retraction part is a recessed structure formed on the edge of the hole part;

[0013] Alternatively, the limiting part is a limiting hole opened on the connecting plate part two, and the anti-retraction part is a recessed structure formed at the edge of the hole part.

[0014] In a possible implementation, the top layer, the partition layer, and the bottom layer all include a main board layer, and a first flange is formed by bending on the left and right sides of the main board layer, and the first flange forms either the first connecting plate part or the second connecting plate part.

[0015] In one possible implementation, the top layer, the partition layer, and the bottom layer are bent at the rear side of the main body panel to form a second flange.

[0016] In a possible implementation, the top layer, the partition layer, and the bottom layer are aligned with the same assembly direction as the column.

[0017] In a possible implementation, the assembly direction of the top layer, partition layer, and bottom layer with the column is parallel to the main body of the top layer, partition layer, and bottom layer.

[0018] In a possible implementation, the column includes a front column and a rear column. The front column is engaged and fixed to the top layer, the partition layer, and the bottom layer from the front to the rear, respectively. The rear column is engaged and fixed to the top layer, the partition layer, and the bottom layer from the rear to the front, respectively.

[0019] In a possible implementation, the rear column is an L-shaped bend, the first sidewall of the L-shaped bend is connected to the first flange, and the second sidewall of the L-shaped bend abuts against the rear sides of the top layer, the partition layer and the bottom layer.

[0020] In a possible implementation, a stop bar is also included, with a stop hole provided on the front side of the top layer and the partition layer, and the stop bar is detachably inserted into the stop hole.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The low-temperature storage container of this utility model has a top layer, partition layer and bottom layer of sheet metal parts connected to the column through a snap-fit ​​structure. The snap-fit ​​structure centrally sets the plug-in piece and the limiting part, so that the limiting part can be snapped into place simultaneously when the connecting plate part one and the connecting plate part two are snapped together. The limiting part and the anti-reverse part of the hole part can realize the anti-reverse function. The assembly is convenient and avoids the need for the anti-reverse structure to be set on the column, which would require the column to be processed again. This reduces the processing steps and improves the simplification of the surface structure of the container.

[0023] Furthermore, by aligning the top, bottom, and partition layers with the assembly direction of the columns, container assembly becomes easier, and the overall structure becomes more stable with the help of the anti-reverse structure. Attached Figure Description

[0024] Figure 1 A first-person perspective stereoscopic view of a cryogenic storage container;

[0025] Figure 2 for Figure 1 A magnified view of part A;

[0026] Figure 3 A stereoscopic view of a cryogenic storage container from a second perspective;

[0027] Figure 4 for Figure 3 A partially enlarged schematic diagram of part B;

[0028] Figure 5 A perspective view of one of the columns of a cryogenic storage container;

[0029] Figure 6 A three-dimensional view of the compartment of a low-temperature storage container;

[0030] Figure 7 This is a schematic diagram of the interlocking structure of a cryogenic storage container configured with two plate layers of thickness.

[0031] Figure 8 This is a schematic diagram illustrating the assembly principle of a cryogenic storage container when the insertion directions of the top layer, bottom layer, and partition are the same.

[0032] In the diagram: 1-Top layer; 2-Partition; 21-First flange; 22-Second flange; 3-Bottom layer; 4-Post; 41-Rear post; 42-Front post; 5-Snap-fit ​​structure; 51-Connecting plate part two; 511-Limiting part; 512-Insertion piece; 52-Connecting plate part one; 521-Hole part; 522-Insertion interface; 523-Snap-fit ​​part; 524-Anti-reverse part; 6-Blocking hole; 7-Blocking rod; 8-Handle; 9-Assembly direction. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0034] Please refer to Figure 1-8 As shown, an embodiment of this application provides a low-temperature storage container, including a top layer 1, a partition layer 2, a bottom layer 3, and a column 4. The top layer 1, partition layer 2, bottom layer 3, and column 4 are sheet metal parts. The top layer 1, partition layer 2, and bottom layer 3 are respectively connected to the column 4 via a snap-fit ​​structure 5. The snap-fit ​​structure 5 includes a first connecting plate portion 52 and a second connecting plate portion 51 that cooperate with each other. One of the first connecting plate portion 52 and the second connecting plate portion 51 is disposed on the top layer 1, partition layer 2, and bottom layer 3, and the other is disposed on the column 4. The first connecting plate portion 52 is provided with a snap-fit ​​portion 1, and the second connecting plate portion 51 is provided with a snap-fit ​​portion 2. The first connecting plate portion 52 and the second connecting plate portion 51 are fitted together, and the first snap-fit ​​portion and the second snap-fit ​​portion 2 are snap-fit ​​connected.

[0035] The top layer 1, bottom layer 3, partition 2, and column 4 are all sheet metal parts, which are easy to process and assemble. The top layer 1, partition 2, and bottom layer 3 are connected to the column 4 by a snap-fit ​​structure 5 to form several storage spaces. This snap-fit ​​structure 5 is mainly composed of connecting plate part one 52 and connecting plate part two 51. The main components of connecting plate part one 52 and connecting plate part two 51 are interchangeable. That is, connecting plate part one 52 can be set on the top layer 1, partition 2, and bottom layer 3, and in this case, connecting plate part two 51 can be set on the column 4. Alternatively, connecting plate part one 52 can be set on the column 4, and connecting plate part two 51 can be set on the top layer 1, partition 2, and bottom layer 3. The two configurations can be selected and configured according to actual needs without restriction. The assembly method of connecting plate part 1 52 and connecting plate part 2 51 by abutting together can help reduce the wall thickness of the container. While abutting, the snap-fit ​​parts 1 and 2 on them are also snapped together, so that a stable container structure can be connected with a smaller wall thickness.

[0036] Please refer to Figure 1-7 As shown in the embodiments of this application, the first snap-fit ​​part may include a hole 521 formed on the first connecting plate part 52, and a fastening tab 523 is formed on one side edge of the hole 521. The fastening tab 523 and the main body of the first connecting plate part 52 form an insertion interface 522. A stop-retraction part 524 is formed on the edge of the hole 521 opposite to the fastening tab 523. The second snap-fit ​​part includes a plug-in piece 512 and a limiting part 511 formed on the second connecting plate part 51. The plug-in piece 512 enters and exits the insertion interface 522 from the hole 521. When the plug-in piece 512 is inserted into the insertion interface 522, the stop-retraction part 524 cooperates with the limiting part 511 to stop and limit the movement.

[0037] The hole 521 and the fastener 523 provided on the snap-fit ​​part are formed by sheet metal processing. The fastener 523 can form an insertion interface 522 with the main body of the connecting plate part 52. The insertion interface 522 is connected to the hole 521, and the hole 521 facilitates the insertion of the insertion piece 512, thereby facilitating the insertion of the insertion piece 512 into the insertion interface 522. At the same time, a stop part 524 is formed on the edge of the hole 521 on the opposite side of the fastener 523. The stop part 524 is used to cooperate with the limiting part 511 on the connecting plate to stop and limit the movement. The connecting plate part 51 is provided with a plug-in piece 512 and a limiting part 511. The plug-in piece 512 is used to be inserted into the plug interface 522 through the hole 521 of the connecting plate part 52. When the plug-in piece 512 is inserted into the plug interface 522, the anti-retraction part 524 cooperates with the limiting part 511 to form an anti-retraction limit on the plug-in piece 512 in the opposite direction of the insertion direction. This makes the plug-in structure more stable. At the same time, the top layer 1, the partition layer 2 and the bottom layer 3 are all connected to the column 4 using this snap-fit ​​structure 5. The overall structural stability and firmness of the container formed by the connection are better, and it is easier to assemble. Since the limiting part 511 and the plug-in piece 512 are provided on the connecting plate part 51, and the edge of the hole 521 is used as the anti-retraction part 524, the snap-fit ​​structure 5 with the anti-retraction structure is more concentrated in the structural setting. This avoids the need to process the anti-retraction structure on the column 4, reduces the processing steps, and makes the structure of the container surface more concise and beautiful.

[0038] Through the above technical solution, the top layer 1, partition layer 2, and bottom layer 3 of the sheet metal part are connected to the column 4 through the snap-fit ​​structure 5. The snap-fit ​​structure 5 centrally sets the insert piece 512 and the limiting part 511, so that the limiting part 511 can be snapped into place simultaneously when the connecting plate part 1 52 and the connecting plate part 2 51 are snapped together. The limiting part 511, together with the anti-retraction part 524 of the hole part 521, can achieve the anti-retraction function. The assembly is convenient, and it also avoids the situation where the anti-retraction structure needs to be set on the column 4, which would require the column 4 to be processed again. This reduces the processing steps and improves the simplification of the container surface structure.

[0039] In one embodiment, in the connected state, the fastening piece 523 and the connecting plate part 2 51 are located on the same plane, and the insertion piece 512 and the connecting plate part 1 52 are located on the same plane.

[0040] This allows the snap-fit ​​structure 5 to form a two-layer snap-fit ​​structure 5, reducing the occupation of lateral space and making the resulting placement space larger.

[0041] In the specific implementation process, the fastening part 523 can be processed by stamping the connecting plate part 1 52 into a recessed structure. The recessed fastening part 523 protrudes from the connecting plate part 1 52 by a plate thickness, that is, it is located on the same plane as the connecting plate part 2 51. Similarly, the insertion piece 512 is formed by bending and protrudes from the connecting plate part 2 51 by a plate thickness, so that it can be located on the same plane as the connecting plate part 1 52, thereby forming a snap-fit ​​structure 5 with two plate thicknesses.

[0042] In some embodiments, the limiting part 511 and the anti-reverse part 524 may employ various different structures for anti-reverse limiting.

[0043] In the first embodiment, the limiting part 511 is a protrusion formed on the connecting plate part 2 51, and the anti-retraction part 524 is the flat edge of the hole part 521. In this embodiment, the limiting part 511 is a protrusion formed on the connecting plate part 2 51 that protrudes towards the side where the connecting plate part 1 52 is located. This protrusion can engage with the flat edge of the hole part 521 on the side that is not processed, as the anti-retraction part 524. That is, the protrusion can form a limiting relationship with the edge of the hole part 521 in the opposite direction of the insertion direction. This can achieve anti-retraction limiting of the insert piece 512, and this structure can also facilitate the formation of two wall thicknesses, that is, the protrusion is not greater than the outer surface of the connecting plate part 1 52.

[0044] In the second embodiment, the limiting part 511 is a protrusion formed on the connecting plate part 2 51, and the anti-retraction part 524 is a recessed structure formed at the edge of the hole part 521. In this embodiment, both the protrusion on the connecting plate part 2 51 and the recessed structure formed at the edge of the hole part 521 on the connecting plate part 1 52 are formed by sheet metal processing. The recessed structure is recessed towards the side where the connecting plate part 2 51 is located. The limiting structure with one protrusion and one recess can make the protrusion height of the protrusion structure smaller, such as one plate thickness. The anti-retraction structure formed in this way will not protrude from the overall surface of the container, making the surface smoother.

[0045] In the third embodiment, the limiting part 511 is a limiting hole opened on the connecting plate part 51, and the anti-retraction part 524 is a recessed structure formed at the edge of the hole part 521. In this embodiment, the limiting hole serves as a locking hole for the recessed structure. The recessed structure is recessed into the side where the connecting plate part 51 is located by a thickness less than or equal to the plate thickness. After being locked into the locking hole, it neither protrudes from the inner surface of the connecting plate part 51 nor does it form an anti-retraction structure, making the design more reasonable.

[0046] To facilitate the connection between the top layer 1, the mezzanine 2, the bottom layer 3, and the column 4, combined with Figure 1-4As shown, the top layer 1, the partition layer 2, and the bottom layer 3 all include a main board layer. The left and right sides of the main board layer are bent to form a first flange 21, which forms the first connecting plate part 52 or the second connecting plate part 51.

[0047] The first flange 21 is formed by bending the two sides of the main plate. The first flange 21 can be easily fitted with the parallel columns 4, which can help to form a structure with a smaller wall thickness.

[0048] Furthermore, the top layer 1, the partition layer 2, and the bottom layer 3 are bent at the rear side of the main body to form a second flange 22. The second flange 22 formed by the bending of the top layer 1, the partition layer 2, and the bottom layer 3 at the rear side of the main body can help to block the rear side, so that the placed items can be more stable and less likely to fall out.

[0049] In addition, the second flange 22 may also form the connecting plate part 1 52 or the connecting plate part 2 51, so as to strengthen the connection between the main plate layers of the top layer 1, the partition layer 2 and the bottom layer 3 and the column 4.

[0050] In the embodiments of this application, the top layer 1, the partition layer 2, and the bottom layer 3 are aligned with the assembly direction 9 of the column 4.

[0051] By setting the assembly direction 9 of the top layer 1, partition layer 2, and bottom layer 3 to the column 4, the main body panels of the top layer 1, partition layer 2, and bottom layer 3 can be connected in the same direction as the column 4 under the connection of the snap-fit ​​structure 5, which makes assembly easier; the snap-fit ​​direction can be either the same longitudinal direction or the same transverse direction, without restriction.

[0052] Preferably, the assembly direction 9 of the top layer 1, partition layer 2, and bottom layer 3 with the column 4 is parallel to the main body panels of the top layer 1, partition layer 2, and bottom layer 3. By assembling the column 4 with an assembly direction 9 parallel to the main body panels of the top layer 1, partition layer 2, and bottom layer 3, it is easier to assemble in the transverse direction, which is more convenient than longitudinal assembly.

[0053] In a preferred embodiment of the structure of column 4, combined with Figure 1 and Figure 3 As shown, the column 4 includes a front column 42 and a rear column 41. The front column 42 is engaged and fixed to the top layer 1, the partition layer 2 and the bottom layer 3 from the front to the rear. The rear column 41 is engaged and fixed to the top layer 1, the partition layer 2 and the bottom layer 3 from the rear to the front.

[0054] By assembling the front column 42 and the rear column 41 from the front and rear sides to the middle with the top layer 1, the partition layer 2 and the bottom layer 3 respectively, the front column 42 can be easily engaged with the top layer 1, the partition layer 2 and the bottom layer 3 at the same time during installation, and the rear column 41 can also be easily engaged with the top layer 1, the partition layer 2 and the bottom layer 3 at the same time during installation, making the installation more convenient and faster.

[0055] Specifically, combined Figure 8 As shown, the top layer 1, the partition layer 2, and the bottom layer 3 are connected by a first flange 21 as a second connecting plate part 51, and a set of second connecting plate parts 51 is provided at both ends of the first flange 21. The connection points of the columns 4 with the top layer 1, the partition layer 2, and the bottom layer 3 are connected as first connecting plate parts 52. In this way, during assembly, the front column 42 and the rear column 41 are inserted into the second connecting plate parts 51 at both ends of the top layer 1, the partition layer 2, and the bottom layer 3 in a horizontal direction from the front and rear sides to the middle, which makes assembly more convenient.

[0056] In practical implementation, the rear column 41 is an L-shaped bend. The first sidewall of the L-shaped bend engages with the first flange 21 for connection, and the second sidewall of the L-shaped bend abuts against the rear sides of the top layer 1, the partition layer 2, and the bottom layer 3. By allowing the L-shaped bend to better engage with the first flange 21 and the rear sides of the top layer 1, the partition layer 2, and the bottom layer 3, a more stable container structure can be formed, and the L-shaped bend can also better block the placed items.

[0057] In addition, combined Figure 1 As shown, it also includes a baffle 7. The top layer 1 and the partition 2 have baffle holes 6 on their front sides, and the baffle 7 is detachably inserted into the baffle holes 6. The baffle adopts an L-shaped structure, and its longitudinal end passes through the baffle holes 6 on the top layer 1 and the partition 2 of each layer, so that the baffle 7 can provide a removable blocking effect on the items on the front side, that is, the baffle 7 can be pulled upward when the blocking is not needed.

[0058] To facilitate the movement of the cryogenic storage container, an L-shaped handle 8 is provided on the top layer 1.

[0059] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A low-temperature storage container, characterized in that, It includes a top layer (1), a partition layer (2), a bottom layer (3), and a column (4), wherein the top layer (1), the partition layer (2), the bottom layer (3), and the column (4) are sheet metal parts; The top layer (1), partition layer (2) and bottom layer (3) are respectively connected to the column (4) through a snap-fit ​​structure (5). The snap-fit ​​structure (5) includes a first connecting plate part (52) and a second connecting plate part (51) that cooperate with each other. One of the first connecting plate part (52) and the second connecting plate part (51) is disposed on the top layer (1), partition layer (2) and bottom layer (3), and the other is disposed on the column (4). A first snap-fit ​​part is provided on the first connecting plate part (52), and a second snap-fit ​​part is provided on the second connecting plate part (51). The first connecting plate part (52) and the second connecting plate part (51) are fitted together, and the first snap-fit ​​part and the second snap-fit ​​part are engaged and connected. The first snap-fit ​​part includes a hole (521) formed on the first connecting plate part (52), a fastening part (523) is formed on one side edge of the hole (521), the fastening part (523) and the main body of the first connecting plate part (52) form an insertion interface (522), and a stop part (524) is formed on the edge of the hole (521) opposite to the fastening part (523); the second snap-fit ​​part includes a plug-in piece (512) and a limiting part (511) formed on the second connecting plate part (51), the plug-in piece (512) enters and exits the insertion interface (522) from the hole (521), and when the plug-in piece (512) is inserted into the insertion interface (522), the stop part (524) cooperates with the limiting part (511) to stop and limit the movement.

2. The low-temperature storage container as described in claim 1, characterized in that, In the connected state, the fastening part (523) and the second connecting plate part (51) are located on the same plane, and the plug-in piece (512) and the first connecting plate part (52) are located on the same plane.

3. A low-temperature storage container as described in claim 1, characterized in that, The limiting part (511) is a protruding structure formed on the connecting plate part two (51), and the anti-retraction part (524) is the flat edge of the hole part (521); Alternatively, the limiting part (511) is a protruding structure formed on the connecting plate part two (51), and the anti-retraction part (524) is a recessed structure formed on the edge of the hole part (521); Alternatively, the limiting part (511) is a limiting hole opened on the connecting plate part two (51), and the anti-retraction part (524) is a recessed structure formed at the edge of the hole part (521).

4. A low-temperature storage container as described in claim 1, characterized in that, The top layer (1), the partition layer (2) and the bottom layer (3) all include a main board layer, and a first flange (21) is formed by bending on the left and right sides of the main board layer. The first flange (21) forms the first connecting plate part (52) or the second connecting plate part (51).

5. A low-temperature storage container as described in claim 4, characterized in that, The top layer (1), the partition layer (2), and the bottom layer (3) are bent at the rear side of the main board layer to form a second flange (22).

6. A low-temperature storage container as described in claim 4, characterized in that, The column (4) includes a front column (42) and a rear column (41). The front column (42) is engaged and fixed to the top layer (1), the partition layer (2) and the bottom layer (3) from the front to the rear. The rear column (41) is engaged and fixed to the top layer (1), the partition layer (2) and the bottom layer (3) from the rear to the front.

7. A low-temperature storage container as described in claim 6, characterized in that, The rear column (41) is an L-shaped bend, the first side wall of the L-shaped bend is connected to the first flange (21), and the second side wall of the L-shaped bend abuts against the rear side of the top layer (1), the partition layer (2) and the bottom layer (3).

8. A low-temperature storage container as described in claim 1, characterized in that, The top layer (1), the partition layer (2), and the bottom layer (3) are assembled in the same direction (9) as the column (4).

9. A low-temperature storage container as described in claim 8, characterized in that, The assembly direction (9) of the top layer (1), partition layer (2) and bottom layer (3) with the column (4) is parallel to the main body of the top layer (1), partition layer (2) and bottom layer (3).

10. A low-temperature storage container as described in claim 1, characterized in that, It also includes a stop bar (7), and a stop hole (6) is provided on the front side of the top layer (1) and the partition layer (2), and the stop bar (7) is detachably inserted into the stop hole (6).

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