Insulation board for refrigerated container and refrigerated container

Abstract

The utility model discloses a kind of thermal insulation board of refrigerated container and refrigerated container, the thermal insulation board of refrigerated container includes outer plate, inner plate, thermal insulation layer;Inner plate includes multiple inner plate units, the edge of inner plate unit is provided with the flanging portion that is bent towards the middle part of inner plate unit, first clamping groove with the opening towards the middle part of inner plate unit is formed between flanging portion and inner plate unit;Between adjacent inner plate units, a buckling member is provided, the buckling member includes inner wall plate, side wall plate extended from the two sides of inner wall plate towards outer plate, the two sides of inner wall plate respectively are provided with one towards the middle part of inner wall plate and extend foot pressure;The inner wall plate of buckling member is attached at the position where two adjacent inner plate units are connected, and the two foot pressure of buckling member are respectively embedded in the first clamping groove of two inner plate units and are clamped and fixed by flanging portion and inner wall plate.The whole inner plate of the utility model has preferable strength, buckling member is formed by bending plate material, and the material cost and manufacturing cost are relatively lower, and buckling member is not easy to break.

Description

Technical Field

[0001] This utility model relates to the field of cold chain transportation technology, specifically to an insulation board for a refrigerated container and a refrigerated container. Background Technology

[0002] Refrigerated containers consist of a base frame, side panels, end walls, doors, and a roof. To isolate heat transfer between the inside and outside of the container, the side panels and roof of refrigerated containers are usually made of insulation panels. The insulation panels consist of an outer panel, an inner panel, and an insulation layer, with the insulation layer located between the inner and outer panels. Because refrigerated containers are usually quite long, it is impossible to process the inner panel of the insulation panel from a single sheet of material. Therefore, the inner panel is usually made up of multiple inner panel units spliced ​​together. The traditional method is to weld adjacent inner panel units together. To ensure the overall strength of the inner panel, a reinforcing beam extending along the width of the inner panel is welded at the splicing position of adjacent inner panel units. This method of forming the inner panel by welding involves a large amount of welding, and most refrigerated container insulation panels are usually made of aluminum sheet, which is more difficult to weld. Some existing refrigerated container insulation panels are formed by splicing. Specifically, two adjacent inner panel units are connected together with aluminum fasteners to form a reinforcing beam. Although this splicing method can reduce the amount of welding in refrigerated containers, the aluminum fasteners are made of aluminum profiles. When splicing with the inner panel units, the edges of the aluminum profiles need to be pressed tightly. During the pressing process, the contact points between the aluminum profiles and the inner panel units are prone to breakage, causing the inner panel to break off from the splice point between two adjacent inner panel units. At the same time, the use of aluminum profiles makes the cost of refrigerated containers too high. Utility Model Content

[0003] In view of the shortcomings of the existing technology, one of the objectives of this utility model is to propose an insulation panel for refrigerated containers that can prevent the inner panel from breaking off from two adjacent inner panel units, while reducing the manufacturing cost of refrigerated containers.

[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 insulation panels of a refrigerated container include an outer panel, an inner panel, and an insulation layer located between the inner and outer panels; The inner panel includes multiple inner panel units. The edge of each inner panel unit is provided with a flange that bends toward the center of the inner panel unit. The flange and the inner panel unit form a first slot with an opening toward the center of the inner panel unit. A fastener is provided between adjacent inner panel units. The fastener includes an inner wall panel and side wall panels extending from both sides of the inner wall panel toward the outer panel. Each side of the inner wall panel is provided with a pressure foot extending toward the center of the inner wall panel. The inner wall panel of the fastener is abutted against the joint of two adjacent inner panel units. The two pressure feet of the fastener are respectively embedded in the first slots of the two inner panel units and are clamped and fixed by the flange and the inner wall panel.

[0006] The pressure foot of the fastener forms a second slot with an opening facing the center of the inner wall panel. The flanges on the adjacent sides of two adjacent inner panel units are respectively embedded in the two second slots on the fastener.

[0007] The fastener includes a first connecting part formed by bending the side of the inner wall panel toward the center of the inner wall panel, and a second connecting part formed by bending the side of the first connecting part away from the side of the inner wall panel toward the side of the inner wall panel. The side wall panel extends toward the outer panel from the side of the second connecting part close to the side of the inner wall panel. The first connecting part and the second connecting part abut together to form a presser foot.

[0008] The presser foot is integrally formed on the edge of the inner wall panel by punching.

[0009] The fastener also includes two extension walls, each formed by bending one side of the two sidewalls away from the inner wall.

[0010] The inner panel unit is provided with multiple ribs, the extension direction of which is consistent with the width direction of the inner panel, and the multiple ribs on the inner panel unit are arranged along the length direction of the inner panel.

[0011] To achieve the second objective mentioned above, this utility model adopts the following technical solution: Refrigerated containers, including the insulation panels of the aforementioned refrigerated containers.

[0012] The beneficial effects of this utility model are as follows: In this invention, adjacent inner panel units are fastened together by fasteners. The flange on the side of the inner panel unit and the inner panel unit clamp and fix the pressure foot on the fastener, so that two adjacent inner panel units are spliced ​​together by the fasteners. The fasteners form a reinforcing beam, giving the entire inner panel better strength. The fasteners are formed by bending sheet metal, which has relatively low material and manufacturing costs. Moreover, when the fasteners are pressed together with two adjacent inner panel units, the fasteners are not easy to break, ensuring the firmness of the connection between adjacent inner panel units. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 for Figure 1 Schematic diagram of the structure of the middle fastener and the inner plate; Figure 3 for Figure 1 Assembly diagram of the middle fastener and inner panel; Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention. Detailed Implementation

[0014] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments: like Figure 1 , 2 The image shows the insulation panel of a refrigerated container according to Embodiment 1 of this utility model. Specifically, it is the insulation top panel of a refrigerated container, including an outer panel 10, an inner panel 200, and an insulation layer located between the outer panel 10 and the inner panel 200. The inner panel 200 is composed of multiple inner panel units 20. A flange 21, bent towards the center of the inner panel unit 20, is provided on each of the two side edges of the inner panel unit 20. A first slot 22 is formed between the flange 21 and the inner panel unit 20, with the opening of the first slot 22 facing the center of the inner panel unit 20. Adjacent inner panel units 20 are connected together by a fastener 30. Specifically, the fastener 30... The 0 includes an inner wall panel 31 and side wall panels 32 extending from both sides of the inner wall panel 31 toward the outer panel 10. Each side of the inner wall panel 31 is provided with a presser foot 33 extending toward the middle of the inner wall panel 31. The inner wall panel 31 of the fastener 30 is attached to the position where two adjacent inner panel units 20 are connected, so that the two presser feet 33 on the fastener 30 are respectively embedded in the first slots 22 of the two adjacent inner panel units 20. The presser feet 33 are clamped by the flange portion 21 of the inner panel unit 20 and the inner panel unit 20, so that the inner panel unit 20 is connected and fixed to the fastener 30. Then, the fastener 30 is used to splice the two adjacent inner panel units 20 together.

[0015] The pressure foot 33 of the fastener 30 forms a second slot 34 with an opening facing the middle of the inner wall panel 31. The two flanges 21 on the adjacent sides of the two adjacent inner panel units 20 are respectively embedded in the two second slots 34 formed on the fastener 30.

[0016] like Figure 3As shown, when splicing two adjacent inner panel units 20, the two presser feet 33 on the fastener 30 are bent and tilted. Similarly, the two flanges 21 on adjacent sides of the two adjacent inner panel units 20 are bent and tilted. The fastener 30 is placed on the outside of the joint of the two adjacent inner panel units 20. The fastener 30 is inserted into the two inner panel units 20 from one side of the width direction of the inner panel unit 20. The presser foot 30 is located between the flange 21 and the inner panel unit 20, and the flange 21 is placed between the presser foot 30 and the inner wall panel 31. After aligning the two ends of the fastener 30 with the two sides of the width direction of the inner panel unit 20, the inner panel unit 20 and the fastener 30 are pressed together on the outside of the inner wall panel 31 and the inside of the two inner panel units 20 using a pressing device or a roller pressing device, so that the fastener 30 and the inner panel unit 20 are deformed as shown. Figure 2 As shown, the inner panel unit 20 and the flange 21 are used to clamp the pressure foot 33 of the fastener 30, thus completing the splicing of the two inner panel units 20.

[0017] In this utility model, adjacent inner panel units 20 are fastened together by fasteners 30. The flange 21 on the side of the inner panel unit 20 and the inner panel unit 20 clamp and fix the pressure foot 33 on the fastener 30, so that two adjacent inner panel units 20 are spliced ​​together by fasteners 30. The fasteners 30 form a reinforcing beam, so that the entire inner panel 200 has better strength. The fasteners 30 are formed by bending sheet metal, which has relatively low material and manufacturing costs. When the fasteners 30 and two adjacent inner panel units 20 are pressed together, the fasteners 30 are not easy to break, ensuring the firmness of the connection between adjacent inner panel units 20.

[0018] The fastener 30 includes a first connecting portion 331 formed by bending the side of the inner wall panel 31 toward the center of the inner wall panel, and a second connecting portion 332 formed by bending the side of the first connecting portion 331 away from the side of the inner wall panel 31 toward the side wall of the inner wall panel 31. The side wall panel 32 extends toward the outer panel 10 from the side of the second connecting portion 332 close to the side of the inner wall panel 31. The first connecting portion 331 and the second connecting portion 332 are close to each other and together form a pressure foot 33. Thus, the fastener 30 can be made entirely from a flat sheet. When making the fastener 30 from a sheet, only a bending process is required, which is simple and efficient.

[0019] The fastener 30 is positioned on the outside of the joint between adjacent inner panel units 20, i.e., between the inner panel 200 and the outer panel 10. The fastener 30 also includes two extension walls 35, which are formed by bending the two side walls 32 away from the inner wall panel 31, making the cross-section of the fastener 30 generally Ω-shaped. Since the fastener 30 is located between the inner panel 200 and the outer panel 10, when a foaming process is used to form an insulation layer between the inner panel 200 and the outer panel 10, the Ω-shaped cross-section of the fastener 30 helps to ensure that the formed insulation layer completely encloses the fastener 30, increasing the contact area between the fastener 30 and the insulation layer and preventing the insulation layer from detaching.

[0020] Figure 2 The insulation panel of the refrigerated container in Embodiment 2 of this utility model adopts a fastener 40 with a different structure than that in Embodiment 1. The other structures are the same as in Embodiment 1. The cross-section of the fastener 40 is roughly the same as that in Embodiment 1. The fastener 40 includes an inner wall panel 41. A door-shaped cut is punched in the inner wall panel 41 by a punching process. The part inside the cut forms a presser foot 43, so that the presser foot 43 is integrally connected to the edge of the inner wall panel 41. Compared with Embodiment 1, the fastener 40 uses a relatively smaller sheet weight. The presser foot 43 formed by the cut is clamped by the inner panel unit and the flange on the inner panel unit, so that the fastener 40 is fixedly engaged with the inner panel unit. Then, the fastener 40 is used to splice the two inner panel units together and to form a reinforcing beam.

[0021] In this invention, to ensure the inner panel unit 20 has better strength, multiple reinforcing ribs 23 are provided on the inner panel unit 20. The extending direction of the reinforcing ribs 23 is consistent with the width direction of the inner panel unit 20, and the multiple reinforcing ribs 23 on the inner panel unit 20 are arranged along the length direction of the inner panel unit. The insulation board of this invention is not only suitable for the insulation top plate of the refrigerated container mentioned above, but also for the insulation layer plate and insulation end wall of the refrigerated container.

[0022] The refrigerated container of this utility model includes the insulation board of the aforementioned refrigerated container. 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 insulation panel of a refrigerated container, characterized in that, Includes an outer panel, an inner panel, and an insulation layer located between the inner and outer panels; The inner panel includes multiple inner panel units. The edge of each inner panel unit is provided with a flange that bends toward the center of the inner panel unit. The flange and the inner panel unit form a first slot with an opening toward the center of the inner panel unit. A fastener is provided between adjacent inner panel units. The fastener includes an inner wall panel and side wall panels extending from both sides of the inner wall panel toward the outer panel. Each side of the inner wall panel is provided with a pressure foot extending toward the center of the inner wall panel. The inner wall panel of the fastener is abutted against the joint of two adjacent inner panel units. The two pressure feet of the fastener are respectively embedded in the first slots of the two inner panel units and are clamped and fixed by the flange and the inner wall panel.

2. The insulation panel of the refrigerated container as described in claim 1, characterized in that, The pressure foot of the fastener forms a second slot with an opening facing the center of the inner wall panel. The flanges on the adjacent sides of two adjacent inner panel units are respectively embedded in the two second slots on the fastener.

3. The insulation panel of the refrigerated container as described in claim 1 or 2, characterized in that, The fastener includes a first connecting part formed by bending the side of the inner wall panel toward the center of the inner wall panel, and a second connecting part formed by bending the side of the first connecting part away from the side of the inner wall panel toward the side of the inner wall panel. The side wall panel extends toward the outer panel from the side of the second connecting part close to the side of the inner wall panel. The first connecting part and the second connecting part abut together to form a presser foot.

4. The insulation panel of the refrigerated container as described in claim 1 or 2, characterized in that, The presser foot is integrally formed on the edge of the inner wall panel by punching.

5. The insulation panel of the refrigerated container as described in claim 1, characterized in that, The fastener also includes two extension walls, each formed by bending one side of the two sidewalls away from the inner wall.

6. The insulation panel of the refrigerated container as described in claim 1, characterized in that, The inner panel unit is provided with multiple ribs, the extension direction of which is consistent with the width direction of the inner panel, and the multiple ribs on the inner panel unit are arranged along the length direction of the inner panel.

7. A refrigerated container, characterized in that, Including the insulation panel of the refrigerated container as described in any one of claims 1-6.

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