Floor connecting structure of refrigerated container
By setting up a floor connection structure between floor units, including a support section, a housing section, fastening components, and a load-bearing section, the problem of high cost of refrigerated container flooring is solved, and a low-cost refrigerated container flooring design with load-bearing capacity and sealing performance is achieved.
Patent Information
- Application Number
- CN202422860105.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Refrigerated container flooring is expensive and has issues with load-bearing capacity and sealing performance. Existing technologies cannot meet the usage requirements of refrigerated containers while ensuring low cost.
The system employs a floor connection structure, including a support section, a housing section, fastening components, and a load-bearing section. Through the connection of adjacent floor units, the floor is supported by the container frame. Non-metallic materials are used to block heat transfer, and a sealing section is used to ensure airtightness.
It achieves the goal of meeting the load-bearing capacity and sealing performance requirements of refrigerated containers at a low cost, reduces floor costs, and improves the bonding stability and support strength between the insulation layer and the floor.
Smart Images

Figure CN223546874U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of container technology, specifically, it relates to a floor connection structure for refrigerated containers. Background Technology
[0002] Currently, the floors of refrigerated containers are made of T-shaped aluminum profiles, which are widely used due to their low material consumption and high strength. However, the material itself is relatively expensive, resulting in a high container price and making it unsuitable for loading low-value-added fast-moving consumer goods.
[0003] Dry cargo containers are constructed using spliced wooden flooring, offering good load-bearing capacity at a moderate price. The bottom structures of ordinary dry cargo containers and refrigerated containers differ. The floor of a dry cargo container is simply laid and fixed to floor beams, without any sealing requirements. In contrast, the bottom of a refrigerated container requires polyurethane foam filling. If the floor is not sealed, leakage and overflow of the polyurethane foam will occur, affecting the container's quality and contaminating the floor surface. In refrigerated containers, the floor needs to be connected as a single unit to address both load-bearing and sealing issues.
[0004] Therefore, developing a refrigerated container floor connection structure, which can be applied inside refrigerated containers to reduce the cost of the refrigerated container floor while meeting the requirements of load-bearing capacity and sealing performance for the goods transported inside the refrigerated container, is an urgent technical problem to be solved. Utility Model Content
[0005] The purpose of this utility model is to provide a refrigerated container floor connection structure to solve the problems of high cost of refrigerated container flooring in the prior art, and the issues of load-bearing capacity and sealing performance if the wooden flooring used in dry containers is adopted.
[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:
[0007] This utility model proposes a refrigerated container floor connection structure for connecting adjacent floor units, comprising:
[0008] The floor connecting structure body has a support part and a receiving part formed thereon. The support part is disposed below the connection point of two adjacent floor units and is used to support the adjacent floor units.
[0009] Fastening components are used to connect two adjacent floor units to the floor connection structure body;
[0010] A load-bearing component is inserted into the receiving portion, and the load-bearing component is used to support the container base frame and the floor.
[0011] In some embodiments of this application, the floor connection structure body is an integral structure;
[0012] The support portion is a support plane formed on the floor connection structure body;
[0013] The receiving part is a receiving cavity formed by the floor connecting structure body. The receiving cavity has an open end. One end of the load-bearing part is inserted into the receiving cavity from the open end, and the other end of the load-bearing part is supported at the container base frame.
[0014] In some embodiments of this application, the floor connection structure body further includes two extensions, which are respectively formed on both sides of the support. The extensions extend from the support in a direction away from the connection point of the floor unit into the insulation layer formed between the floor unit and the container frame.
[0015] In some embodiments of this application, a sealing portion is further included, which extends between the floor unit and the support portion; the sealing portion extends along the contact surface of the two floor units.
[0016] In some embodiments of this application, the support portion is a protrusion formed on the floor connection structure body facing the floor unit, the support plane is formed on the side of the protrusion near the floor, and the receiving cavity is formed on the side of the protrusion away from the floor;
[0017] The two extension portions are respectively connected to the two ends of the protrusion, and an inlet portion is formed at the connection between the extension portion and the protrusion;
[0018] During the process of inserting the load-bearing part into the receiving cavity, the guide part is used to guide the load-bearing part.
[0019] In some embodiments of this application, the end of the load-bearing part is formed with a clearance portion, which is used to prevent interference between the load-bearing part and the floor connection structure body when the load-bearing part is inserted into the receiving cavity.
[0020] In some embodiments of this application, the floor connection structure body is formed by bending or extrusion.
[0021] In some embodiments of this application, the load-bearing part is made of a non-metallic material, and the load-bearing part is used to block heat transfer between the floor and the container frame.
[0022] In some embodiments of this application, a connecting portion is also included for connecting the load-bearing portion to the container chassis.
[0023] In some embodiments of this application, an auxiliary load-bearing component is also included, which is disposed between the floor unit and the container frame to provide auxiliary load-bearing for the floor unit;
[0024] And / or, a bottom crossbeam is formed on the container frame, a cover plate is used to cover the bottom crossbeam, and the load-bearing part is set on the bottom crossbeam through the cover plate.
[0025] Compared with the prior art, the advantages and positive effects of this utility model are:
[0026] By providing floor connecting parts between floor units, multiple floor units can be connected to form a floor. The floor connecting structure body is located at the lower part of the connection between adjacent floor units to support the adjacent floor units. By providing fastening components, the floor units are connected to the floor connecting structure body. By providing load-bearing parts, the floor units are supported between the container chassis. The floor formed by connecting in the above manner is inexpensive and can meet the load-bearing capacity requirements of refrigerated containers. Since the floor connecting structure body is located in the insulation layer, the stability of the bond between the insulation layer and the floor can be improved, thereby further ensuring the support strength of the bottom structure of the refrigerated container.
[0027] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 Side view of the bottom structure of a refrigerated container in the prior art;
[0030] Figure 2 This is one of the schematic diagrams illustrating the use of a refrigerated container floor connection structure proposed in this utility model;
[0031] Figure 3 This is a side view of the main body of the floor connection structure of a refrigerated container floor connection structure proposed in this utility model;
[0032] Figure 4 This is the second schematic diagram of the use of the refrigerated container floor connection structure proposed in this utility model;
[0033] Figure 5This is an exploded view illustrating the use of a refrigerated container floor connection structure proposed in this utility model;
[0034] Figure 6 This is a schematic diagram of the connection between the floor unit and the floor connection part proposed in this utility model;
[0035] Figure 7 This is a schematic diagram showing the connection of the two floor units proposed in this utility model along the width direction of the refrigerated container;
[0036] In the picture,
[0037] 100. Floor;
[0038] 110. Floor unit;
[0039] 111. Connecting slot;
[0040] 112. Back panel;
[0041] 200. Container base frame;
[0042] 210. Bottom crossbeam;
[0043] 220. Cover plate;
[0044] 300. Floor joint;
[0045] 310. Floor connection structure body;
[0046] 311. Support section;
[0047] 312. Reception area;
[0048] 3121. Open end;
[0049] 313. Extension section;
[0050] 314. Introduction Section;
[0051] 320. Fastening components;
[0052] 330. Load-bearing components;
[0053] 331. Avoidance section;
[0054] 340. Connecting part;
[0055] 341. Angle iron;
[0056] 342. Bolt;
[0057] 350. Auxiliary load-bearing components;
[0058] 360° Auxiliary connecting parts;
[0059] 370. Auxiliary fastening components;
[0060] 400. Insulation layer;
[0061] 510. Sealant;
[0062] 520. Sealing tape. Detailed Implementation
[0063] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0064] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.
[0065] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0066] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0067] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0068] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.
[0069] In some embodiments of this application, a refrigerated container is provided, which includes a bottom structure that can ensure stable support performance of the bottom structure at a low cost.
[0070] like Figures 2 to 7 As shown, the bottom structure of a refrigerated container includes a floor 100, a container frame 200, a floor connection 300, and an insulation layer 400.
[0071] like Figure 2 , Figure 4 , Figure 5 As shown, the floor 100 and the container frame 200 are arranged parallel to each other, with the container frame 200 located below the floor 100. The insulation layer 400 is filled between the floor 100 and the container frame 200. The insulation layer 400 fills the area enclosed between the floor 100 and the container frame 200.
[0072] To reduce the cost of floor 100, floor 100 includes multiple floor units 110.
[0073] In some embodiments of this application, a plurality of floor units 110 are spaced apart along the length of the refrigerated container, and a floor connecting portion 300 extends along the width of the refrigerated container and is disposed at the connection between two adjacent floor units 110.
[0074] Floor unit 110 can be made of wood flooring, which is inexpensive.
[0075] The floor connector 300 is used for connecting two adjacent floor units 110.
[0076] Since the floor unit 110 is made of wood, and the floor 100 is formed by connecting the floor connectors 300, the floor 100 is made inexpensive.
[0077] In some embodiments of this application, in order to ensure that adjacent floor units 110 are connected by floor connection portion 300, a sealing portion is provided between them. The sealing portion extends between the floor unit 110 and the support portion 311, and extends along the contact surface of the floor unit 110.
[0078] Specifically, such as Figure 7 As shown, the sealing part can be made of sealant 510. Along the length of the refrigerated container, sealant 510 is applied between the ends of two adjacent floor units 110. When the two floor units 110 are in contact, the sealant 510 extends along the contact surface between the two floor units 110.
[0079] A sealant 510 is applied to the contact surface between the floor unit 110 and the floor connection portion 300. When the floor unit 110 and the floor connection portion 300 are in contact, the sealant 510 extends along the contact surfaces, thereby achieving a seal between the two floor units 110 and between the floor unit 110 and the floor connection portion 300. This provides a sealed cavity for the filling of the insulation layer 400.
[0080] Since the container is a refrigerated container, the floor connection part 300 needs to connect two adjacent floor units 110 while also preventing heat conduction between the floor 100 and the container frame 200.
[0081] In some embodiments of this application, such as Figure 3 As shown, the floor connection part 300 includes a floor connection structure body 310, a fastening component 320, and a load-bearing part 330.
[0082] Fastening assembly 320 is used to connect floor connection structure body 310 to floor unit 110.
[0083] like Figure 4 , Figure 5 As shown, one end of the load-bearing part 330 is abutted against the floor unit 110 via the floor connection structure body 310. The other end of the load-bearing part 330 is supported and connected to the container base frame 200.
[0084] The weight borne by the floor 100 is transferred to the container frame 200 through the load-bearing part 330. Since the load-bearing part 330 is connected to both the floor 100 and the container frame 200, it needs to be made of a material with poor thermal conductivity to avoid thermal bridging between the floor 100 and the container frame 200, which would cause heat transfer between them.
[0085] In some embodiments of this application, such as Figure 3 As shown, a support portion 311 and a receiving portion 312 are formed on the floor connection structure body 310.
[0086] The support 311 is disposed below the connection between two adjacent floor units 110 and is used to support the two adjacent floor units 110.
[0087] Specifically, the support 311 can be a support plane formed on the floor connection structure body 310. The support plane abuts against the lower surfaces of two adjacent floor units 110.
[0088] The receiving part 312 is used to receive the load-bearing part 330, so that the load-bearing part 330 can support the floor 100 through the floor connection structure body 310.
[0089] The receiving part 312 is a receiving cavity formed by the floor connection structure body 310.
[0090] Specifically, one end of the load-bearing part 330 is inserted into the receiving cavity, and the other end of the load-bearing part 330 is supported and connected to the container base frame 200.
[0091] Specifically, the load-bearing part 330 can be made of non-metallic materials. For example, the load-bearing part 330 can be made of PE blocks.
[0092] In some embodiments of this application, the floor connection structure body 310 is an integral structure. The support portion 311 is a protrusion formed on the floor connection structure body 310 in the direction toward the floor unit 110, and the support plane is formed on the side of the protrusion near the floor 100.
[0093] In some embodiments of this application, the receiving cavity is formed with an open end 3121, and the load-bearing part 330 can be inserted into the receiving cavity from the open end 3121.
[0094] The receiving cavity is formed on the side of the protrusion away from the floor by 100.
[0095] This enables the plug-in connection between the load-bearing part 330 and the floor connection structure body 310.
[0096] Specifically, such as Figure 2 , Figure 4As shown, a clearance portion 331 is formed at the end of the load-bearing portion 330. When the load-bearing portion 330 is inserted into the receiving cavity, the clearance portion 331 is used to prevent interference between the load-bearing portion 330 and the floor connection structure body 310.
[0097] Specifically, the clearance portion 331 is a notch formed at both ends of the load-bearing portion 330, thereby avoiding interference between the two ends of the load-bearing portion 330 and the floor connection structure body 310.
[0098] In some embodiments of this application, the floor connection structure body 310 further includes two extensions 313. The two extensions 313 are respectively formed on both sides of the support 311. The extensions 313 extend from the support 311 in a direction away from the connection point of the floor unit 110 into the insulation layer 400.
[0099] Since the extension 313 extends into the insulation layer 400, it can serve to fix the insulation layer 400.
[0100] Specifically, the insulation layer 400 is a polyurethane foam filling the area formed by the floor 100 and the container frame 200. The extension 313 serves to fix the polyurethane foam.
[0101] Specifically, the cross-sectional shape of the floor connection structure body 310 is “Ω”.
[0102] Specifically, the floor connection structure body 310 is formed by bending or extrusion.
[0103] In some embodiments of this application, two extensions 313 are respectively connected to the two ends of the protrusion, and an inlet 314 is formed at the connection between the extension 313 and the protrusion. During the process of inserting the load-bearing part 330 into the receiving cavity, the inlet 314 is used to guide the load-bearing part 330.
[0104] Specifically, the inlet portion 314 is an arc shape formed at the connection between the extension portion 313 and the protrusion portion.
[0105] In some embodiments of this application, the floor connection portion 300 further includes a connection portion 340. The connection portion 340 is used for the connection between the load-bearing portion 330 and the container base frame 200.
[0106] Specifically, such as Figure 2 As shown, the connecting part 340 can be made of angle iron 341 and bolts 342. The two sides of the angle iron 341 abut against the load-bearing part 330 and the container base frame 200, respectively. The angle iron 341 is connected to the connecting part 340 by bolts 342.
[0107] In some embodiments of this application, the floor connection portion 300 further includes an auxiliary load-bearing portion 350. The auxiliary load-bearing portion 350 is used to provide auxiliary support for the floor unit 110. The auxiliary load-bearing portion 350 is disposed between the floor 100 and the container frame 200.
[0108] The auxiliary load-bearing part 350 is connected to the floor unit 110 via the auxiliary fastening assembly 370.
[0109] The auxiliary load-bearing part 350 is connected to the container base frame 200 via the auxiliary connecting part 360.
[0110] In some embodiments of this application, a bottom crossbeam 210 is formed on the container base frame 200. The bottom crossbeam 210 on the container base frame 200 has high strength, and the floor 100 can act on the bottom crossbeam 210 through the load-bearing part 330, thereby improving the stress condition of the container base frame 200.
[0111] Specifically, a cover plate 220 covers the bottom crossbeam 210, and the load-bearing part 330 is installed on the bottom crossbeam 210 through the cover plate 220.
[0112] In some other embodiments of this application, a plurality of floor units 110 are connected and arranged along the width direction of the refrigerated container.
[0113] Specifically, such as Figure 7 As shown, a connecting groove 111 is formed at the end of the floor unit 110 along the width direction of the refrigerated container, and a back panel 112 is attached to the connecting groove 111 of two adjacent floor units 110 by sealing tape 520.
[0114] Specifically, sealant 510 is applied to the ends of adjacent floor units 110. When the ends of adjacent floor units 110 are abutting each other, the sealant 510 flows along the ends of the two floor units 110, thereby covering the ends of the floor units 110 and achieving the adhesion of the two floor units 110.
[0115] By attaching sealing tape 520 between the connecting groove 111 and the back panel 112, the connection between the ends of two adjacent floor units 110 along the width direction of the refrigerated container is achieved, and at the same time, sealant 510 is applied between the ends of the two floor units 110 along the width direction of the refrigerated container, thus sealing the connection and preventing the insulation layer 400 from overflowing at the connection.
[0116] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0117] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.
[0118] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A refrigerated container floor connection structure, characterized in that, It is used for connecting adjacent floor units, including: The floor connecting structure body has a support part and a receiving part formed thereon. The support part is disposed below the connection point of two adjacent floor units and is used to support the adjacent floor units. Fastening components are used to connect two adjacent floor units to the floor connection structure body; A load-bearing component is inserted into the receiving portion, and the load-bearing component is used to support the container base frame and the floor.
2. The refrigerated container floor connection structure according to claim 1, characterized in that, The floor connection structure is a single integrated structure. The support portion is a support plane formed on the floor connection structure body; The receiving part is a receiving cavity formed by the floor connecting structure body. The receiving cavity has an open end. One end of the load-bearing part is inserted into the receiving cavity from the open end, and the other end of the load-bearing part is supported at the container base frame.
3. The refrigerated container floor connection structure according to claim 2, characterized in that, The floor connection structure body also includes two extensions, which are respectively formed on both sides of the support. The extensions extend from the support in a direction away from the connection point of the floor unit into the insulation layer formed between the floor unit and the container frame.
4. The refrigerated container floor connection structure according to claim 1, characterized in that, It also includes a sealing portion that extends between the floor unit and the support portion; the sealing portion extends along the contact surface of the two floor units.
5. The refrigerated container floor connection structure according to claim 3, characterized in that, The support portion is a protrusion formed on the floor connection structure body facing the floor unit, the support plane is formed on the side of the protrusion near the floor, and the receiving cavity is formed on the side of the protrusion away from the floor; The two extension portions are respectively connected to the two ends of the protrusion, and an inlet portion is formed at the connection between the extension portion and the protrusion; During the process of inserting the load-bearing part into the receiving cavity, the guide part is used to guide the load-bearing part.
6. The refrigerated container floor connection structure according to claim 2, characterized in that, The end of the load-bearing part is formed with a clearance portion, which is used to prevent interference between the load-bearing part and the floor connection structure body when the load-bearing part is inserted into the receiving cavity.
7. The refrigerated container floor connection structure according to claim 1, characterized in that, The floor connection structure body is formed by bending or extrusion.
8. The refrigerated container floor connection structure according to claim 1, characterized in that, The load-bearing part is made of non-metallic material and is used to block heat transfer between the floor and the container frame.
9. The refrigerated container floor connection structure according to claim 3, characterized in that, It also includes a connecting part for connecting the load-bearing part to the container chassis.
10. The refrigerated container floor connection structure according to claim 1, characterized in that, It also includes an auxiliary load-bearing component, which is disposed between the floor unit and the container frame to provide auxiliary load-bearing for the floor unit; And / or, a bottom crossbeam is formed on the container frame, a cover plate is used to cover the bottom crossbeam, and the load-bearing part is set on the bottom crossbeam through the cover plate.