Tunnel type cold storage box

By using hollow panels and partitions, along with wedge-shaped locking strips, the cumbersome connection problem of existing tunnel-type cold storage is solved, enabling multi-temperature zone management and rapid assembly, making it suitable for various refrigeration scenarios.

CN224297743UActive Publication Date: 2026-05-29CHENGDU JIUYUAN INTELLIGENT MANUFACTURING PRECISION IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU JIUYUAN INTELLIGENT MANUFACTURING PRECISION IND CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing tunnel-type cold storage has a single modular connection method, is cumbersome to assemble, and is difficult to deploy, disassemble and expand quickly. It also lacks flexible functional partitioning methods and cannot meet the needs of multi-temperature zone storage or mobile cold storage.

Method used

Hollow panels and partition panels are embedded in the installation gaps between adjacent cabinets. Through the cooperation of wedge-shaped strips and slots, the refrigeration chambers can be connected or separated. Combined with multi-layer support and insulation layer structure, the airtightness and thermal insulation effect are improved.

Benefits of technology

It enables multiple application scenarios such as multi-temperature zone management, segmented refrigeration, or centralized cooling, simplifies structural design and manufacturing process, improves assembly efficiency and interchangeability, and is suitable for temporary deployment and frequently changing refrigeration sites.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a tunnel type cold storage box relates to refrigeration technical field, this tunnel type cold storage box includes a plurality of box and board body. Any box is enclosed and forms refrigerating chamber, board body includes hollow board and partition board, hollow board is the plate structure with the center through -hole, and partition board is the solid plate structure, among them, a plurality of box links in turn, and there is installation gap between two adjacent boxes, and the width of installation gap, the thickness of hollow board and the thickness of partition board are same, to can selectivity with hollow board or partition board is embedded in installation gap, and two adjacent refrigerating chambers are cut off or communicate. The tunnel type cold storage box can realize the communication or the cut off of refrigerating chamber according to actual demand, satisfy multi -temperature zone management, segmented refrigeration or centralized pass cold and so on many kinds of use scene, at the same time, hollow board, partition board and installation gap thickness are consistent, can simplify structure design and production process, improve interchangeability and assembly efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a tunnel-type cold storage box. Background Technology

[0002] Cold chain logistics technology has wide applications in modern food, pharmaceutical, and fresh produce distribution. To ensure the quality and safety of perishable goods during transportation and storage, cold storage equipment with refrigeration capabilities is often used for low-temperature preservation. Currently, most common cold storage structures on the market are either integral or modular, and their installation is mostly fixed. Once built, they are not easily disassembled or relocated, limiting their flexible application in various scenarios.

[0003] In addition, to improve the efficiency of cold storage, a widely discussed type of cold storage is the tunnel-type cold storage. However, this type of cold storage in related technologies has the problem of a single connection method between modules. It mostly adopts bolt, welding or plug-in structure, which is cumbersome to assemble and not conducive to rapid deployment, disassembly and expansion. At the same time, it lacks flexible functional partitioning methods and cannot set or cancel temperature zone isolation as needed, making it difficult to meet the needs of multi-temperature zone storage or mobile cold storage scenarios.

[0004] Therefore, there is an urgent need to provide a new type of tunnel-type cold storage box. Utility Model Content

[0005] This utility model provides a tunnel-type cold storage box. By selectively embedding hollow panels or partition plates in the installation gap between two adjacent boxes, the connection or isolation of the refrigeration chambers can be achieved according to actual needs, meeting various usage scenarios such as multi-temperature zone management, segmented refrigeration, or centralized cooling. Simultaneously, the hollow panels, partition plates, and installation gaps have the same thickness, simplifying structural design and manufacturing processes, facilitating standardized manufacturing and inventory management, and improving interchangeability and assembly efficiency. This utility model provides a tunnel-type cold storage box, comprising: multiple boxes, each of which encloses a refrigeration chamber; and panels, including hollow panels and partition plates. The hollow panels are plate-like structures with a central through hole, and the partition plates are solid plate-like structures. The multiple boxes are sequentially connected, and there is an installation gap between adjacent boxes. The width of the installation gap, the thickness of the hollow panels, and the thickness of the partition plates are all the same, allowing the hollow panels or partition plates to be selectively embedded in the installation gaps, thus isolating or connecting adjacent refrigeration chambers.

[0006] Furthermore, the housing includes a main body and a locking part. The main body includes a top plate, a bottom plate, and a pair of side plates. The top plate, the bottom plate, and the pair of side plates cooperate to form the refrigeration chamber. The locking part is arranged on the side plate and extends outward along the extension direction of the side plate. The hollow plate and the partition plate both have slots that are adapted to the locking part. Through the cooperation of the slots and the locking part, the hollow plate and the partition plate can be embedded in the housing.

[0007] Furthermore, the engaging portion includes a first engaging unit and a second engaging unit, both of which include a wedge-shaped locking strip, wherein the small-diameter end face of the wedge-shaped locking strip is connected to the side plate, and the large-diameter end face of the wedge-shaped locking strip is away from the side plate;

[0008] The first engaging unit of one of the boxes cooperates with the second engaging unit of the adjacent box to form the installation gap. The cross-sectional shape of the installation gap is defined as the first cross-section, which includes the large-diameter ports at both ends and the small-diameter port located between the large-diameter ports at both ends. The cross-sectional shapes of the hollow board and the partition board are defined as the second cross-section and the third cross-section, respectively. The second cross-section and the third cross-section are the same as the first cross-section.

[0009] Furthermore, the first engaging unit further includes a protrusion block arranged on the large-diameter end face of the wedge-shaped locking strip, and the second engaging unit further includes a groove arranged on the large-diameter end face of the wedge-shaped locking strip, wherein the protrusion block and the groove are adapted to each other and both have a circular arc surface.

[0010] Furthermore, the protrusion and the groove are respectively located at the middle of the large-diameter end face of the wedge-shaped card strip.

[0011] Furthermore, the two corners of the large-diameter end face of the wedge-shaped card strip are rounded, and the small-diameter end face of the wedge-shaped card strip and the inclined surface of the wedge-shaped card strip form an acute angle transition.

[0012] Furthermore, the two sides of the same side plate are respectively provided with the first engaging unit and the second engaging unit.

[0013] Furthermore, the partition plate includes a support layer and a thermal insulation layer, wherein there are multiple support layers, the thermal insulation layer is arranged between two adjacent support layers, and the thermal conductivity of the thermal insulation layer is less than that of the support layer.

[0014] Furthermore, at least two of the support layers abut against the box body on both sides.

[0015] Furthermore, it also includes a closing plate that snaps onto the housing located on the side to seal the cooling chamber.

[0016] Compared with existing technologies, the tunnel-type cold storage box provided by this utility model has at least the following beneficial effects:

[0017] 1. This tunnel-type cold storage box can selectively embed hollow panels or partition panels in the installation gap between two adjacent boxes to realize the connection or separation of refrigeration chambers according to actual needs, meeting various usage scenarios such as multi-temperature zone management, segmented refrigeration or centralized cooling. At the same time, the hollow panels, partition panels and installation gaps have the same thickness, which can simplify structural design and production process, facilitate standardized manufacturing and inventory management, and improve interchangeability and assembly efficiency.

[0018] 2. The tunnel-type cold storage box adopts a wedge-shaped locking strip design in its connection structure. Through the precise interlocking of the locking part and the slot, it can achieve rapid assembly while ensuring good airtightness and thermal insulation effect, reducing cold loss and improving energy efficiency ratio. In addition, the structure can be quickly assembled and disassembled without the use of bolts or welding. It is particularly suitable for cold storage sites that require temporary deployment and frequent layout changes, such as emergency cold storage and temporary preservation passages.

[0019] 3. The partition panels in this tunnel-type cold storage box can adopt a multi-layer structure, including a combination design of a support layer and a thermal insulation layer, which can further improve the thermal insulation effect and overall mechanical strength, and is suitable for cold chain operations under different temperature differences and load conditions. Attached Figure Description

[0020] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0021] Figure 1 This is one of the structural schematic diagrams of a tunnel-type cold storage box according to some embodiments of this specification;

[0022] Figure 2 This is the second structural schematic diagram of a tunnel-type cold storage box according to some embodiments shown in this specification;

[0023] Figure 3 These are schematic diagrams of the housing structure shown in some embodiments of this specification;

[0024] Figure 4 This is a top view of the housing shown in some embodiments of this specification;

[0025] Figure 5 This is a cross-sectional view of a hollow plate shown in some embodiments of this specification;

[0026] Figure 6 This is a structural schematic diagram of the partition plate shown in some embodiments of this specification;

[0027] Figure 7 This is a cross-sectional view of a partition plate shown according to some embodiments of this specification.

[0028] Icons: 100-Tunnel-type cold storage box; 11-Box body; 111-Refrigeration chamber; 112-Top plate; 113-Bottom plate; 114-Side plate; 12-Hollow plate; 13-Partition plate; 141-First locking unit; 142-Second locking unit; 143-Wedge-shaped locking strip; 144-Protrusion block; 145-Groove; 15-Closing plate. Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0030] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0031] Please refer to Figures 1-7 This application provides a tunnel-type cold storage box 100, which includes multiple boxes 11 and panels. Each box 11 encloses a refrigeration chamber 111. The panels include hollow panels 12 and partition panels 13. The hollow panels 12 are plate-like structures with a central through hole, and the partition panels 13 are solid plate-like structures. The multiple boxes 11 are connected in sequence, and there is an installation gap between adjacent boxes 11. The width of the installation gap, the thickness of the hollow panels 12, and the thickness of the partition panels 13 are all the same, so that the hollow panels 12 or partition panels 13 can be selectively embedded in the installation gap, and adjacent refrigeration chambers 111 can be isolated or connected.

[0032] It should be noted that the width of the installation gap, the thickness of the hollow plate 12, and the thickness of the partition plate 13 mentioned in this embodiment are all their maximum width or maximum thickness.

[0033] It should also be noted that, Figure 2 For the tunnel-type cold storage box 100 without the plate inserted, the installation gap can be positioned as follows: Figure 2 As shown.

[0034] It is worth noting that the tunnel-type cold storage box 100 can selectively embed hollow panels 12 or partition panels 13 in the installation gap between two adjacent boxes 11, so as to realize the connection or isolation of the refrigeration chambers 111 according to actual needs, and meet various usage scenarios such as multi-temperature zone management, segmented refrigeration or centralized cooling. At the same time, the hollow panels 12 and partition panels 13 have the same thickness as the installation gap, which can simplify the structural design and production process, facilitate standardized manufacturing and inventory management, and improve interchangeability and assembly efficiency.

[0035] Please refer to this again. Figure 3 and Figure 4 The housing 11 includes a main body and a locking part. The main body includes a top plate 112, a bottom plate 113 and a pair of side plates 114. The top plate 112, the bottom plate 113 and the pair of side plates 114 cooperate with each other to form a refrigeration chamber 111. The locking part is arranged on the side plate 114 and extends outward along the extension direction of the side plate 114. The hollow plate 12 and the partition plate 13 both have slots that are adapted to the locking part. Through the cooperation of the slots and the locking part, the hollow plate 12 and the partition plate 13 can be embedded in the housing 11.

[0036] It is worth noting that by setting hollow plates 12 and partition plates 13 with slots, and having them cooperate with the engaging parts extending from the side plates 114 of the housing 11, tool-free assembly and disassembly of modules can be achieved, thereby improving on-site installation and subsequent maintenance efficiency. Furthermore, the slots and engaging parts have a mechanical limiting and tight-fitting structure, ensuring a secure connection while maintaining structural airtightness, effectively preventing cold air leakage and external heat infiltration, and guaranteeing the thermal insulation performance of the refrigeration chamber 111. Simultaneously, since the engaging structure is arranged on the outside of the side plates 114 and along their extension direction, multiple housings 11 can be continuously spliced ​​horizontally, and different functional panels can be selected as needed, achieving flexible expansion of the system structure and function.

[0037] In this embodiment, the engaging part includes a first engaging unit 141 and a second engaging unit 142. Both the first engaging unit 141 and the second engaging unit 142 include a wedge-shaped locking strip 143, and the small diameter end face of the wedge-shaped locking strip 143 is connected to the side plate 114, while the large diameter end face of the wedge-shaped locking strip 143 is away from the side plate 114.

[0038] The first engaging unit 141 of one of the housings 11 cooperates with the second engaging unit 142 of the adjacent housing 11 to form an installation gap. The cross-sectional shape of the installation gap is defined as the first cross-section, which includes the large-diameter ports at both ends and the small-diameter port located between the large-diameter ports at both ends. The cross-sectional shapes of the hollow plate 12 and the partition plate 13 are defined as the second cross-section and the third cross-section, respectively. The second cross-section and the third cross-section are the same as the first cross-section.

[0039] It is worth noting that the wedge-shaped locking strip 143 connects to the side plate 114 with its small-diameter end and forms a wedge-shaped mating structure with its large-diameter end facing outward. This allows the two housings 11 to achieve self-centering and guiding positioning during splicing, avoiding misalignment and improving the assembly accuracy between components. At the same time, the first cross-section (i.e., the installation gap) formed between the two wedge-shaped locking strips 143 has a uniform geometry, which can accurately fit the cross-sectional dimensions of the hollow plate 12 and the partition plate 13, ensuring matching, stability, and sealing during the installation process. Its structure is similar to that of a dovetail groove, and it can also have a gradually tightening clamping effect after insertion, which can enhance the interlocking strength of the hollow plate 12 or the partition plate 13 within the installation gap and prevent loosening or falling off during use.

[0040] Optionally, the first engaging unit 141 further includes a protrusion 144, which is arranged on the large-diameter end face of the wedge-shaped locking strip 143. The second engaging unit 142 further includes a groove 145, which is arranged on the large-diameter end face of the wedge-shaped locking strip 143. The protrusion 144 and the groove 145 are adapted to each other and both have a circular arc surface.

[0041] Specifically, by setting up the mating structure of the protrusion 144 and the groove 145, shear resistance and displacement resistance are provided when the two engaging units are interlocked, thereby preventing misalignment or sliding of adjacent housings 11 under external force and enhancing the overall structural stability. In addition, the circular arc surface design of the protrusion 144 and the groove 145 has a certain guiding and positioning function, which can automatically guide them into the correct position during assembly, improving assembly efficiency and avoiding misinsertion or jamming.

[0042] In this embodiment, the protrusion 144 and the groove 145 are located at the middle of the large-diameter end face of the wedge-shaped card strip 143.

[0043] It is worth noting that the protrusion 144 and the groove 145 are positioned in the center, which allows the two wedge-shaped locking strips 143 to be subjected to more even force during the mating process, avoiding tilting or deformation of the mating part due to uneven loading, thereby improving the overall splicing stability. At the same time, the centrally positioned protrusion and groove structure can serve as a positioning reference for the mating center, guiding the plates into the correct position from the initial stage of installation, improving the alignment accuracy and efficiency during the assembly process, and reducing human error.

[0044] Please refer to this again. Figure 4 The two corners of the large-diameter end face of the wedge-shaped card strip 143 are rounded, and the small-diameter end face of the wedge-shaped card strip 143 and the inclined surface of the wedge-shaped card strip 143 are sharp-angled.

[0045] It is worth noting that the rounded corner transition of the large-diameter end face can effectively alleviate stress concentration at the edge of the large-diameter end face, reduce the risk of structural cracking, extend the service life of the locking strip, and improve the overall durability and impact resistance of the structure. However, since sealing performance and preventing cuts to users are more important considerations between the small-diameter end and the inclined surface, a sharp-angle transition is used. This makes it easier for the locking strip to be wedged to its limit position during insertion, improving the firmness and anti-loosening ability of the locking structure.

[0046] In this embodiment, the two sides of the same side plate 114 are respectively provided with a first engaging unit 141 and a second engaging unit 142.

[0047] It is worth noting that different types of interlocking units (such as convex and concave interlocking) are set at both ends of the side panel 114, so that the adjacent boxes 11 have a unique matching direction when splicing, thereby preventing the problem of connection failure or structural failure due to incorrect direction during assembly.

[0048] like Figure 6 and Figure 7 As shown, the partition plate 13 includes a support layer and a thermal insulation layer. There are multiple support layers, and the thermal insulation layer is arranged between two adjacent support layers. The thermal conductivity of the thermal insulation layer is less than that of the support layer.

[0049] It's worth noting that the insulation layer uses a material with a lower thermal conductivity than the supporting layers and is sandwiched between multiple supporting layers, forming a sandwich-like structure. This effectively blocks heat conduction paths, significantly reducing heat transfer between adjacent cold storage compartments and improving insulation performance. Simultaneously, the insulation layer, sandwiched between two rigid supporting layers, provides reinforcement and protection, preventing the insulation material from collapsing, failing, or compromising its sealing performance under pressure during long-term use. Depending on the specific implementation environment, the insulation layer can be an internal high-efficiency polyurethane foam layer, etc.

[0050] In this embodiment, there are at least two support layers that abut against the box 11 on both sides.

[0051] It is worth noting that there are two support layers located at both ends of the partition plate 13, which can further prevent the insulation layer from being damaged or crushed, and improve the convenience of maintenance and replacement.

[0052] In this embodiment, a closing plate 15 is also included, which is snapped onto the box 11 located on the side to close the cooling chamber 111.

[0053] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0054] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of this application. However, those skilled in the art will recognize that embodiments of this invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of this application.

[0055] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments described herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0056] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0057] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0058] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0059] The above description of the embodiments shown in this utility model (including the content in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments of this application, and such modifications will be within the spirit and scope of the utility model.

[0060] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of the embodiments of this application. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring various aspects of the embodiments of this application.

Claims

1. A tunnel-type cold storage box, characterized in that, include: Multiple enclosures, each of which is enclosed to form a refrigeration chamber; The panel includes a hollow panel and a partition panel, wherein the hollow panel is a plate-shaped structure with a central through hole, and the partition panel is a solid plate-shaped structure. The multiple boxes are connected in sequence, and there is an installation gap between two adjacent boxes. The width of the installation gap, the thickness of the hollow plate and the thickness of the partition plate are all the same, so that the hollow plate or the partition plate can be selectively embedded in the installation gap and the two adjacent refrigeration chambers can be separated or connected.

2. The tunnel-type cold storage box according to claim 1, characterized in that, The housing includes a main body and a locking part. The main body includes a top plate, a bottom plate, and a pair of side plates. The top plate, the bottom plate, and the pair of side plates cooperate to form the refrigeration chamber. The locking part is arranged on the side plate and extends outward along the extension direction of the side plate. The hollow plate and the partition plate both have slots that are adapted to the locking part. Through the cooperation of the slots and the locking part, the hollow plate and the partition plate can be embedded in the housing.

3. A tunnel-type cold storage box according to claim 2, characterized in that, The engaging part includes a first engaging unit and a second engaging unit. Both the first engaging unit and the second engaging unit include a wedge-shaped locking strip. The small-diameter end face of the wedge-shaped locking strip is connected to the side plate, and the large-diameter end face of the wedge-shaped locking strip is away from the side plate. The first engaging unit of one of the boxes cooperates with the second engaging unit of the adjacent box to form the installation gap. The cross-sectional shape of the installation gap is defined as the first cross-section, which includes the large-diameter ports at both ends and the small-diameter port located between the large-diameter ports at both ends. The cross-sectional shapes of the hollow board and the partition board are defined as the second cross-section and the third cross-section, respectively. The second cross-section and the third cross-section are the same as the first cross-section.

4. A tunnel-type cold storage box according to claim 3, characterized in that, The first engaging unit further includes a protrusion block arranged on the large-diameter end face of the wedge-shaped locking strip. The second engaging unit further includes a groove arranged on the large-diameter end face of the wedge-shaped locking strip. The protrusion block and the groove are adapted to each other and both have a circular arc surface.

5. A tunnel-type cold storage box according to claim 4, characterized in that, The protrusion and the groove are respectively located at the middle of the large-diameter end face of the wedge-shaped card strip.

6. A tunnel-type cold storage box according to claim 3, characterized in that, The large-diameter end face of the wedge-shaped card strip has rounded corners on both sides, and the small-diameter end face of the wedge-shaped card strip has an acute angle transition with the inclined surface of the wedge-shaped card strip.

7. A tunnel-type cold storage box according to claim 3, characterized in that, The two sides of the same side plate have the first engaging unit and the second engaging unit, respectively.

8. A tunnel-type cold storage box according to claim 1, characterized in that, The partition plate includes a support layer and a thermal insulation layer. There are multiple support layers, and the thermal insulation layer is arranged between two adjacent support layers. The thermal conductivity of the thermal insulation layer is less than that of the support layer.

9. A tunnel-type cold storage box according to claim 8, characterized in that, There are at least two of the support layers that abut against the box on both sides.

10. A tunnel-type cold storage box according to claim 1, characterized in that, It also includes a closing plate that snaps onto the housing located on the side to seal the cooling chamber.