Refrigerated container chassis

Abstract

The utility model discloses a refrigeration container chassis, including floor and corrugated board, corrugated board is located floor below, and the interlayer is formed between corrugated board and floor, and the interlayer is equipped with the middle plate with the gap, and the gap of middle plate is equipped with bottom crossbeam, and the recess is equipped with the PE block in the recess, and the PE block is contacted with floor and recess inner wall simultaneously, and the interlayer is filled with the foaming layer, and the distance of middle plate and floor is less than the distance of middle plate and corrugated board. The utility model discloses through the new design's PE block cross section, places in the recess of bottom crossbeam, need not self -tapping screw locking, also need not reinforcing plate intensification support, need not additional fixed angle iron, and the contact area of PE block and floor, recess also is big, simplifies production technology, improves the overall strength of chassis.

Description

Technical Field

[0001] This utility model relates to the field of refrigerated container technology, and more specifically, to a refrigerated container chassis. Background Technology

[0002] A refrigerated container is a container specifically designed for frozen or low-temperature goods that need to be maintained at a certain temperature. They are divided into internal mechanical refrigerated containers with built-in refrigeration units and external refrigerated containers without refrigeration units, as shown in the attached diagram in the instruction manual. Figure 2 The diagram shows an existing refrigerated container chassis structure. The main body is located below the floor 6 of the refrigerated container. A middle plate is located beneath the floor 6, with intervals on the middle plate. A bottom crossbeam 2 is installed within each interval. The bottom crossbeam 2 has end edges at both ends and a recessed groove in the center. To ensure the overall strength of the chassis, each bottom crossbeam 2 has 3-5 reinforcing plates 7 within its groove. Strip-shaped PE blocks 1 are located on the end edges of the bottom crossbeam 2. The PE blocks 1 simultaneously support both the bottom crossbeam 2 and the floor 6, meaning they are in contact with both simultaneously. The PE blocks 1 are reinforced and fixed by angle irons 5, which are locked to the PE blocks 1 by self-tapping screws 8. At the bottom of the structure is a corrugated plate 3, connected to the bottom crossbeam 2 and located below the floor 6. A certain distance is maintained between the corrugated plate 3 and the floor 6, forming a sandwich structure. Foaming is applied between the corrugated plate 3 and the middle plate to form a foam layer 4 for insulation and to support the floor 6.

[0003] However, the expansion of the foam material inside the sandwich structure will exert a large compressive force on PE block 1, which can easily cause PE block 1 to shift and affect its supporting function. The floor 6, which lacks local support, is more prone to deformation under the pressure of the cargo, affecting the normal use of the refrigerated container. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a refrigerated container chassis to solve one or more of the above-mentioned problems.

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

[0006] A refrigerated container frame includes a floor and a corrugated sheet. The corrugated sheet is disposed below the floor, and a sandwich layer is formed between the corrugated sheet and the floor. A middle plate with a notch is provided in the sandwich layer. A bottom crossbeam is provided at the notch of the middle plate. The bottom crossbeam has a groove in the center. A PE block is provided in the groove. The PE block simultaneously abuts against the floor and the inner wall of the groove. The sandwich layer is filled with a foam layer.

[0007] Furthermore, the groove is wider at the top and narrower at the bottom, and the side of the PE block matches and fits the groove.

[0008] Furthermore, there are gaps between the intermediate plate and the floor and the corrugated plate, and the PE block extends out of the groove.

[0009] Furthermore, the two ends of the bottom crossbeam are fixed at the gap in the interlayer, and the bottom of the groove on the bottom crossbeam is tightly against the corrugated plate.

[0010] Furthermore, the side of the PE block is a continuous smooth slope, and the center of gravity of the PE block is located within the groove.

[0011] Furthermore, the distance between the intermediate plate and the floor is less than the distance between the intermediate plate and the corrugated plate.

[0012] In summary, this utility model has the following beneficial effects: By using the newly designed PE block cross section, it is placed in the groove of the bottom crossbeam, eliminating the need for self-tapping screws, reinforcing plates, and additional fixing angle irons. The contact area between the PE block and the floor and the groove is also increased, simplifying the production process and improving the overall strength of the base frame. Attached Figure Description

[0013] Figure 1 A schematic diagram of one embodiment of this utility model;

[0014] Figure 2 A schematic diagram of the prior art provided by this utility model.

[0015] In the diagram: 1. PE block; 2. Bottom beam; 3. Corrugated board; 4. Foam layer; 5. Fixing angle iron; 6. Floor; 7. Reinforcing plate; 8. Self-tapping screw. Detailed Implementation

[0016] Example:

[0017] The following is in conjunction with the appendix Figure 1-2 The present invention will be described in further detail below.

[0018] A type of refrigerated container chassis, such as Figure 1As shown, based on the structural improvement of conventional refrigerated containers, a corrugated plate 3 is installed below the floor 6 of the refrigerated container, forming a sandwich layer between the corrugated plate 3 and the floor 6. An intermediate plate is installed slightly above the sandwich layer, meaning there are gaps between the intermediate plate and both the floor 6 and the corrugated plate 3. The distance between the intermediate plate and the floor 6 is less than the distance between the intermediate plate and the corrugated plate 3. The intermediate plate has a notch, and a bottom crossbeam 2 is installed at the notch. The two ends of the bottom crossbeam 2 are fixed to the notch of the sandwich layer, and the bottom of the groove on the bottom crossbeam 2 is tightly pressed against the corrugated plate 3. The bottom crossbeam 2 has a groove in its center, which is a symmetrical structure, wider at the top and narrower at the bottom. A PE block 1 is installed inside the groove, extending out of the groove. The side of the PE block 1 matches and fits the groove, and the side of the PE block 1 is a continuous, smooth slope with the slope of both sides being completely consistent. The PE block 1 simultaneously abuts against the floor 6 and the inner wall of the groove. The center of gravity of the PE block 1 is located within the groove, meaning that the portion of the PE block 1 extending out of the groove cannot be too large, ensuring its stable placement within the groove. The remaining space within the interlayer is filled using a foaming process to form a foam layer 4.

[0019] The new structure eliminates the need for a dedicated fixing angle iron 5 on the bottom crossbeam 2, as well as the need for additional reinforcing plates 7. It also eliminates the steps of fixing the angle iron 5 and PE block 1 with self-tapping screws 8. At the same time, it increases the volume of PE block 1, and the contact area between PE block 1 and the floor 6 and the groove is also increased. This simplifies the production process, improves the overall structural strength of the underframe, avoids the compression of the floor 6 by the original design, reduces the risk of deformation, and ensures the long-term use of the refrigerated container.

[0020] It should be noted that this specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A refrigerated container frame, comprising a floor (6) and a corrugated sheet (3), wherein the corrugated sheet (3) is disposed below the floor (6), and a sandwich layer is formed between the corrugated sheet (3) and the floor (6), characterized in that: The interlayer is provided with a notched intermediate plate, and a bottom crossbeam (2) is provided at the notch of the intermediate plate. The bottom crossbeam (2) has a groove in the center, and a PE block (1) is provided in the groove. The PE block (1) simultaneously abuts against the floor (6) and the inner wall of the groove. The interlayer is filled with a foam layer (4).

2. The refrigerated container chassis according to claim 1, characterized in that: The groove is wider at the top and narrower at the bottom, and the side of the PE block (1) matches and fits the groove.

3. The refrigerated container chassis according to claim 2, characterized in that: There are gaps between the intermediate plate and the floor (6) and the corrugated plate (3), and the PE block (1) extends out of the groove.

4. The refrigerated container chassis according to claim 3, characterized in that: The bottom crossbeam (2) is fixed at both ends at the gap in the interlayer, and the bottom of the groove on the bottom crossbeam (2) is tightly against the corrugated plate (3).

5. The refrigerated container chassis according to claim 3, characterized in that: The side of the PE block (1) is a continuous smooth slope, and the center of gravity of the PE block (1) is located in the groove.

6. The refrigerated container chassis according to claim 3, characterized in that: The distance between the intermediate plate and the floor (6) is less than the distance between the intermediate plate and the corrugated plate (3).

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