Refrigeration box bottom frame

Abstract

The utility model discloses a refrigerating box bottom frame which comprises a T floor with a bottom wave plate, a floor supporting piece is additionally arranged between the T floor and the bottom wave plate, floor reinforcing ribs are arranged at the bottom of the T floor, rectangular bubble flowing holes with through bottoms are formed in the floor supporting piece, and bubble bodies flow into the space between the T floor and the bottom wave plate and are filled with the rectangular bubble flowing holes. Through the arrangement of the through-bottom type rectangular foaming holes, the contact area between the floor supporting piece and the bottom corrugated plate is reduced, the heat bridge effect is effectively reduced, and the heat preservation performance is improved; and meanwhile, the number of the rectangular foaming holes is reduced, the set positions are optimized, a foaming process is facilitated to be matched, inflowing foam bodies can effectively avoid the cavity problem of an original shadow surface, and the construction quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of container production, and more specifically, it relates to the chassis of a refrigerated container. Background Art

[0002] As shown in the accompanying drawings of the specification Figure 2 、 Figure 3 、 Figure 4 and Figure 5 show, the chassis structure of the existing refrigerated container generally consists of a "sandwich" structure composed of a floor, a chassis and a foam body, which helps to achieve long-term heat preservation at the bottom. At the same time, in order to meet the cargo loading requirements of the refrigerated container, floor reinforcing ribs and floor supports are usually arranged inside the foam body to improve the structural strength. These structural reinforcements are generally made of PE material and are provided with 8 to 12 flow foam holes.

[0003] However, this structure has the following problems: The upper and lower surfaces of the floor support are in full contact with the floor and the chassis, and the heat bridge problem always exists; when injecting the foam body at the injection point, since the foam body is filled from bottom to top, there is a probability of foam leakage in the shadow of the floor support, resulting in a cavity. Both of these problems will lead to a reduction in heat preservation performance. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a chassis for a refrigerated container to solve one or more of the above problems.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] The chassis of a refrigerated container includes a T-shaped floor with a bottom corrugated plate, a floor support is added between the T-shaped floor and the bottom corrugated plate, floor reinforcing ribs are arranged at the bottom of the T-shaped floor, and rectangular flow foam holes that penetrate through the bottom are opened on the floor support, and the rectangular flow foam holes flow into and fill the foam body between the T-shaped floor and the bottom corrugated plate.

[0007] Further, the rectangular flow foam holes are opened and penetrate along the length direction of the chassis of the refrigerated container, and all the rectangular flow foam holes on the same floor support are symmetric about the center.

[0008] Further, the depth of the rectangular flow foam holes is 15 - 25 mm, and the width is 100 - 200 mm.

[0009] Further, the number of the rectangular flow foam holes is 3 - 5, and there is a gap between the bottom of the floor support and the bottom corrugated plate.

[0010] Further, the T-shaped floor and the bottom corrugated plate form a semi-closed chassis structure, and a filling port is opened on the side of the chassis structure.

[0011] Furthermore, the material injection port is communicated with the inner cavity of the chassis structure and the rectangular foam holes, and the foam body fills the gaps of the chassis structure.

[0012] In summary, the utility model has the following beneficial effects: By setting the bottom-through rectangular foaming holes, the contact area between the floor support member and the bottom corrugated plate is reduced, the heat bridge effect is effectively reduced, and the heat preservation performance is improved; at the same time, the number of rectangular foaming holes is reduced and the set positions are optimized, which is beneficial to fit the foaming process, and the inflowing foam body can effectively avoid the cavity problem of the original shadow surface, improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a cross-sectional view of an embodiment provided by the utility model;

[0014] Figure 2 is a side view of the prior art provided by the utility model;

[0015] Figure 3 is Figure 2 the cross-sectional view at A-A in

[0016] Figure 4 is Figure 2 the partial enlarged view at B in

[0017] Figure 5 is Figure 3 the partial enlarged view of the end in

[0018] In the figure: 1, bottom corrugated plate; 2, T floor; 3, floor support member; 4, floor reinforcement; 5, rectangular foam hole; 6, foam body; 7, material injection port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following Figure 1 is a further detailed description of the utility model in conjunction with the attached

[0020] The bottom frame of the refrigerator, such as Figure 1As shown in the figure, the main body is a T-shaped floor 2 with a bottom corrugated plate 1. A number of T-shaped floors 2 arranged in an array along the length direction of the cold storage box bottom frame form the uppermost layer structure. The cross-section of the bottom corrugated plate 1 is a wavy structure, which is arranged opposite to the T-shaped floor 2. A foam body 6 is injected between the T-shaped floor 2 and the bottom corrugated plate 1. In this way, a "sandwich" structure of the T-shaped floor 2, the foam body 6 and the bottom corrugated plate 1 is formed in sequence from top to bottom. A semi-closed bottom frame structure is formed between the bottom corrugated plate 1 and the T-shaped floor 2. The structure between the bottom corrugated plate 1 and the T-shaped floor 2 is improved and the overall strength is enhanced by adding floor support members 3. Floor reinforcing ribs 4 are also added at the bottom of the T-shaped floor 2. The floor reinforcing ribs 4 are in a suspended state and do not contact the bottom corrugated plate 1. A foam injection port 7 is provided on the side of the overall bottom frame structure for injecting the foam body 6 from the outside. A through rectangular foam flow hole 5 is provided on the floor support member 3 along the length direction of the cold storage box bottom frame. The bottom of the rectangular foam flow hole 5 penetrates through the floor support frame. Three to five rectangular foam flow holes 5 are provided in the width direction of the cold storage box bottom frame, preferably four. These four rectangular foam flow holes 5 are symmetric about the center, so that there is a gap between the bottom of the floor support member 3 and the bottom corrugated plate 1, reducing the contact area and reducing the thermal bridge effect. The depth of the rectangular foam flow hole 5 is 15 to 25 mm, and the width is 100 to 200 mm, and it is vertically arranged appropriately according to the actual situation. The foam injection port 7 is communicated with the internal cavity of the bottom frame structure and the rectangular foam flow hole 5. The foam body 6 enters the gap between the T-shaped floor 2 and the bottom corrugated plate 1 through the foam injection port 7, and all the cavities separated by the floor support members 3 are communicated through the rectangular foam flow hole 5, and finally fills the entire bottom frame structure, forming a complete heat insulation structure, and basically eliminating the cavity problem.

[0021] It should be noted that this specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions according to needs, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A refrigerator chassis, comprising a T-floor (2) with a bottom corrugated plate (1), a floor support member (3) being provided between the T-floor (2) and the bottom corrugated plate (1), and a floor reinforcement rib (4) being provided at the bottom of the T-floor (2), characterized in that: The floor support member (3) is provided with a rectangular flow bubble hole (5) with a bottom penetrating therethrough, and the rectangular flow bubble hole (5) flows into the space between the T-floor (2) and the bottom wave plate (1) and fills up the bubble body (6).

2. The refrigerator chassis according to claim 1, characterized in that: The rectangular flow bubble holes (5) are opened and penetrated along the length direction of the refrigerator bottom frame, and all the rectangular flow bubble holes (5) on the same floor support member (3) are symmetrical about the center.

3. The refrigerator chassis according to claim 1, characterized in that: The rectangular flow bubble hole (5) has a depth of 15-25 mm and a width of 100-200 mm.

4. The refrigerator chassis according to claim 1, characterized in that: The number of the rectangular flow bubble holes (5) is 3 to 5, and there is a gap between the bottom of the floor support member (3) and the bottom wave plate (1).

5. The refrigerator chassis according to claim 1, characterized in that: The T-floor (2) and the bottom wave plate (1) form a semi-enclosed chassis structure, and a material injection port (7) is provided on the side of the chassis structure.

6. The refrigerator chassis according to claim 5, characterized in that: The injection port (7) is in communication with the internal cavity of the base frame structure and the rectangular flow bubble hole (5), and the bubble body (6) fills the gap of the base frame structure.

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