Chassis of refrigerated container and refrigerated container
Patent Information
- Application Number
- CN202521969624.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-13
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-13
AI Technical Summary
[0002]冷藏集装箱是冷链运输的重要设备，冷藏集装箱的底架不仅要求能够承载货物，同时还应当具备引导冷气在载货空间中流动的特性，因而，现有的冷藏集装箱底架上的地板通常是采用T地板，T地板上的T形凸起顶部支撑货物，相邻T形凸起在货物的下方形成供冷风流动的风道；由于集装箱的底架具有相对较大的宽度，例如标准冷藏集装箱的地板宽度为2290mm，无法将一整块宽度较大的T地板组装到底架上，因而，冷藏集装箱的地板通常是由多个带有T形凸起的地板单元拼焊而成，由于T地板为铝型材，其焊接难度较大，现有的冷藏集装箱中，T地板的焊缝布局不够合理，导致冷藏集装箱在使用过程中，T地板的焊缝容易出现开裂，影响冷藏集装箱的正常使用
本实用新型中，T地板通过第一地板单元、偶数个第二地板单元、两个边连接件拼接而成，第一地板单元位于T地板的中间位置，在第一地板单元的两侧平均分布数量相等的第二地板单元，两个边连接件位于T地板的两侧边缘以便于将T地板与冷藏集装箱的内侧板连接，如此，使焊缝沿T地板的中间线对称分布，并且使焊缝在T地板上被合理布局，避免焊缝开裂。
Smart Images
Figure CN224715610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold chain transportation technology, specifically to a refrigerated container frame and a refrigerated container. Background Technology
[0002] Refrigerated containers are crucial equipment in cold chain transportation. The chassis of a refrigerated container must not only be able to support cargo but also guide the flow of cold air within the cargo space. Therefore, the floor of existing refrigerated container chassis is typically a T-floor. The T-shaped protrusions on the T-floor support the cargo, and adjacent T-shaped protrusions form air ducts for cold air flow beneath the cargo. Because the container chassis has a relatively large width (e.g., the standard refrigerated container floor is 2290mm wide), it's impossible to assemble a single, large T-floor unit. Therefore, the floor of a refrigerated container is usually welded together from multiple floor units with T-shaped protrusions. Since the T-floor is made of aluminum profiles, welding it is difficult. In existing refrigerated containers, the weld layout of the T-floor is not ideal, leading to cracking of the welds during use and affecting the normal operation of the refrigerated container. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a refrigerated container base frame that can reasonably arrange the weld seams of the T-floor to avoid weld cracking.
[0004] The second objective of this utility model is to provide a refrigerated container.
[0005] To achieve the first objective mentioned above, this utility model adopts the following technical solution: The underframe of the refrigerated container includes a T-floor, a bottom plate located below the T-floor, and an insulation layer. The insulation layer fills the space enclosed by the T-floor and the floor. The T-floor includes a first floor unit, an even number of second floor units, and two side connectors. The first floor unit is located in the middle of the T-floor, and the even number of second floor units are evenly distributed on both sides of the first floor unit. The two side connectors are located on the outer sides of the T-floor respectively. The first floor unit has an odd number of T-shaped protrusions, and the middle T-shaped protrusion of the first floor unit is located in the middle of the width direction of the T-floor. The number of T-shaped protrusions on the second floor units is greater than the number of T-shaped protrusions on the first floor unit, and the width of the second floor unit is 1.28 to 1.63 times the width of the first floor unit. Each side connector has a T-shaped protrusion.
[0006] Two second floor units are arranged between the first floor unit and the edge connector. One second floor unit forms a first weld with the first floor unit, the two second floor units form a second weld, and the other second floor unit forms a third weld with the edge connector. The distance between the first weld and the center line of the T-floor is D1, the distance between the second weld and the center line of the T-floor is D2, and the distance between the third weld and the center line of the T-floor is D3. The ratio of D2 to D1 is 3.7 to 3.9, and the ratio of D3 to D1 is 6.3 to 6.8.
[0007] D1 is 158.7mm, D2 is 603.2mm, and D3 is 1047.7mm.
[0008] The distance between any two adjacent T-shaped protrusions on the T-floor is d, where 50≤d≤63.5.
[0009] The first floor unit has 5 T-shaped protrusions, and the second floor unit has 7 T-shaped protrusions.
[0010] The thickness of T-floor is 40~63.5mm.
[0011] Two second floor units are arranged between the first floor unit and the edge connector; each of the two sides of the first floor unit is provided with a plug-in part, and one side of the second floor unit is provided with a slot and the other side is provided with a plug-in part. The plug-in part of the first floor unit is inserted into the slot of the second floor unit. In two adjacent second floor units, the plug-in part of one second floor unit is inserted into the slot of the other second floor unit.
[0012] To achieve the second objective mentioned above, this utility model adopts the following technical solution: Refrigerated containers, including the underframe of the aforementioned refrigerated containers.
[0013] The beneficial effects of this utility model are as follows: In this invention, the T-floor is assembled from a first floor unit, an even number of second floor units, and two side connectors. The first floor unit is located in the middle of the T-floor, and an equal number of second floor units are evenly distributed on both sides of the first floor unit. The two side connectors are located on the two side edges of the T-floor to facilitate the connection between the T-floor and the inner side panel of the refrigerated container. In this way, the welds are symmetrically distributed along the center line of the T-floor, and the welds are reasonably arranged on the T-floor to avoid weld cracking. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified view of point A in the middle. Detailed Implementation
[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments: like Figure 1 , 2 As shown, this utility model discloses a refrigerated container frame, which includes a T-floor 10, a bottom plate 20, and an insulation layer 30. The bottom plate 20 is located below the T-floor 10 and is spaced a certain distance from the T-floor 10 in the vertical direction. The insulation layer 30 is filled within the space enclosed by the T-floor 10 and the bottom plate 20 through a foaming process. The T-floor 10 is composed of multiple floor units arranged along the width of the frame. Specifically, the T-floor 10 includes a first floor unit 11, an even number of second floor units 12, and two side connectors 13. The even number of second floor units 12 are evenly distributed on both sides of the first floor unit 11, and the two side connectors 13 are located on the outer sides of the T-floor. In one specific embodiment, the T-floor 10 includes four second floor units 12, that is, two second floor units 12 are distributed on each side of the first floor unit 11. The first floor unit 11 is located in the middle of the T-floor 10, and the first floor units 11 and the second floor units 12 are arranged sequentially from the first floor unit 11 towards one side of the T-floor 10. The second floor unit 12 and the edge connector 13 are welded and fixed at their joint positions. The first floor unit 11 has an odd number of T-shaped protrusions 111, and the middle T-shaped protrusion 111 on the first floor unit 11 is located at the middle position in the width direction of the T-floor 10. The second floor unit 12 has more T-shaped protrusions 121 than the first floor unit 11. The width of the second floor unit 12 is 1.28 to 1.63 times the width of the first floor unit 11. Specifically, the width of the second floor unit 12 is 444.5 mm, and the width of the first floor unit 11 is 317.5 mm, making the width of the second floor unit 12 1.4 times the width of the first floor unit 11. The edge connector 13 has one T-shaped protrusion 131.
[0016] In this utility model, a first weld 14 is formed between the first floor unit 11 and the adjacent second floor unit 12, a second weld 15 is formed between the two second floor units 12, and a third weld 16 is formed between the second floor unit 12 away from the first floor unit 11 and the edge connector 13. The distance between the first weld 14 and the center line of the T-floor 10 is D1, the distance between the second weld 15 and the center line of the T-floor 10 is D2, and the distance between the third weld 16 and the center line of the T-floor 10 is D3. Wherein, D2 / D1 is 3.7~3.9, D3 / D1 is 6.3~6.8. In a specific embodiment, D1 is 158.7mm, D2 is 603.2mm, and D3 is 1047.7mm.
[0017] The distance between any two adjacent T-shaped protrusions on the T-floor 10 is d, allowing cold air to flow evenly through the T-floor, where 50 ≤ d ≤ 63.5 mm. Furthermore, to ensure smooth airflow so that the cold air generated by the refrigeration unit of the refrigerated container can quickly reach the rear of the container, the thickness of the T-floor 10 is 40~63.5 mm. This ensures that the channels between adjacent T-shaped protrusions for cold air flow have sufficient height, while also preventing the T-floor 10 from being too thick and encroaching on the height of the cargo space inside the refrigerated container.
[0018] In this invention, the first floor unit 11 has a relatively smaller width than the second floor unit 12, and five T-shaped protrusions 11 are provided on the first floor unit 11, while seven T-shaped protrusions are provided on the second floor unit 12.
[0019] When four second floor units 12 are provided, two second floor units 12 are arranged on each side of the first floor unit 11. A plug-in part 112 is provided on each side of the first floor unit 11. A slot 122 is provided on one side of the second floor unit 12 and a plug-in part 112 is provided on the other side. The plug-in part 112 of the first floor unit is plugged into the slot 122 of the adjacent second floor unit 12. In two adjacent second floor units 12, the plug-in part 112 of one second floor unit 12 is plugged into the slot 122 of the other second floor unit 12.
[0020] In other embodiments of this utility model, the T-floor 10 may include a first floor unit and two second floor units, with the two second floor units respectively arranged on both sides of the first floor unit, such that the first floor unit has an edge connector on the outside of each of the two second floor units.
[0021] In this invention, the T-floor is assembled from a first floor unit, an even number of second floor units, and two side connectors. The first floor unit is located in the middle of the T-floor, and an equal number of second floor units are evenly distributed on both sides of the first floor unit. The two side connectors are located on the two side edges of the T-floor to facilitate the connection between the T-floor and the inner side panel of the refrigerated container. In this way, the welds are symmetrically distributed along the center line of the T-floor, and the welds are reasonably arranged on the T-floor to avoid weld cracking.
[0022] The refrigerated container of this utility model includes the aforementioned refrigerated container base frame. The other structures of the refrigerated container are the same as those in the prior art and will not be described in detail here.
[0023] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. The underframe of a refrigerated container, characterized in that, The system includes a T-shaped floor, a base plate located beneath the T-shaped floor, and an insulation layer, with the insulation layer filling the space enclosed by the T-shaped floor and the floor itself. The T-shaped floor includes a first floor unit, an even number of second floor units, and two side connectors. The first floor unit is located in the middle of the T-shaped floor, and the even number of second floor units are evenly distributed on both sides of the first floor unit. The two side connectors are located on the outer sides of the T-shaped floor. The first floor unit has an odd number of T-shaped protrusions, with the central T-shaped protrusion of the first floor unit located in the middle of the width direction of the T-shaped floor. The number of T-shaped protrusions on the second floor units is greater than the number of T-shaped protrusions on the first floor unit, and the width of the second floor unit is 1.28 to 1.63 times the width of the first floor unit. Each side connector has one T-shaped protrusion.
2. The underframe of the refrigerated container as described in claim 1, characterized in that, Two second floor units are arranged between the first floor unit and the edge connector. One second floor unit forms a first weld with the first floor unit, the two second floor units form a second weld, and the other second floor unit forms a third weld with the edge connector. The distance between the first weld and the center line of the T-floor is D1, the distance between the second weld and the center line of the T-floor is D2, and the distance between the third weld and the center line of the T-floor is D3. The ratio of D2 to D1 is 3.7 to 3.9, and the ratio of D3 to D1 is 6.3 to 6.
8.
3. The underframe of the refrigerated container as described in claim 2, characterized in that, D1 is 158.7mm, D2 is 603.2mm, and D3 is 1047.7mm.
4. The underframe of the refrigerated container as described in claim 1, characterized in that, The distance between any two adjacent T-shaped protrusions on the T-floor is d, where 50≤d≤63.
5.
5. The underframe of the refrigerated container as described in claim 1, characterized in that, The first floor unit has 5 T-shaped protrusions, and the second floor unit has 7 T-shaped protrusions.
6. The underframe of the refrigerated container as described in claim 5, characterized in that, The thickness of T-floor is 40~63.5mm.
7. The underframe of the refrigerated container as described in claim 1, characterized in that, Two second floor units are arranged between the first floor unit and the edge connector; each of the two sides of the first floor unit is provided with a plug-in part, and one side of the second floor unit is provided with a slot and the other side is provided with a plug-in part. The plug-in part of the first floor unit is inserted into the slot of the second floor unit. In two adjacent second floor units, the plug-in part of one second floor unit is inserted into the slot of the other second floor unit.
8. A refrigerated container, characterized in that, Includes the underframe of the refrigerated container as described in any one of claims 1-7.