Connection structure of refrigerated truck compartments and refrigerated truck compartments

Abstract

This utility model discloses a connection structure for a refrigerated truck compartment and the refrigerated truck compartment itself. The connection structure includes wall panels, corner posts, and connecting rivets. The wall panels include an outer wall panel, an inner wall panel, and an insulation layer. A connector fixed to the outer wall panel is provided on the inner side of the outer wall panel. The connector includes a first connecting plate, which forms a groove with an opening facing the corner post between itself and the outer wall panel. A second connecting plate and a third connecting plate located inside the second connecting plate are provided on the side of the corner post facing the wall panel. The second connecting plate is located inside or outside the outer wall panel, and the third connecting plate overlaps with the first connecting plate. The connecting rivets pass through the first and third connecting plates to fix them, and the outer end of the connecting rivets is received in the groove. This utility model ensures that the connecting rivets do not penetrate to the outer side of the wall panels and corner posts, preventing leakage of foam material during secondary foaming, and the connecting rivets are not exposed on the outer surface of the refrigerated truck compartment.

Description

Technical Field

[0001] This utility model relates to the field of cold chain transportation technology, specifically to a connection structure for a refrigerated truck compartment and a refrigerated truck compartment. Background Technology

[0002] Refrigerated trucks are essential tools for cold chain transportation. Their enclosed compartments form a sealed space used to store goods in a low-temperature environment during transport. To prevent heat transfer between the inside and outside of the compartment, refrigerated truck compartments are typically designed with a sandwich structure, consisting of an inner panel, an outer panel, and an insulation layer between the inner and outer panels. For example, the side panels of the compartment include an inner side panel, an outer side panel, and an insulation layer. To ensure optimal strength, corner posts are installed at the four corners of the compartment. The side panels and end panels are connected to these corner posts. Taking the connection structure between the side panels and corner posts as an example, the outer side panel is connected to the outer edge of the corner post by rivets, and a sealing structure is installed between the inner side panel and the inner edge of the corner post to prevent heat leakage at the corner post. When assembling with the corner posts, the outer side panel is overlapped on the outside of the corner post. After positioning the corner post and the side panel, rivet holes are drilled on the outside of the outer side panel, and the outer side panel is fixed to the corner post with rivets. In this structure, because the rivet holes on the outer side panel and the corner post penetrate through the inside of the corner post and the outer side panel, the compartment is foamed a second time to add an insulation layer to the gap at the connection between the side panel and the corner post. During the second foaming process, because the rivet holes penetrate through the inside and outside, the foaming material is very easy to leak out from the rivet holes, resulting in poor insulation effect at the connection between the side panel and the corner post of the refrigerated compartment. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a connection structure for refrigerated truck compartments, which can prevent rivets from being exposed on the outside of the compartment and prevent the foam material from leaking out during secondary foaming.

[0004] The second objective of this utility model is to provide a refrigerated truck compartment.

[0005] To achieve the first objective mentioned above, this utility model adopts the following technical solution:

[0006] The connecting structure of the refrigerated compartment includes wall panels, corner posts located at the ends of the wall panels, and connecting rivets;

[0007] The wall panel includes an outer wall panel, an inner wall panel, and an insulation layer filled between the outer wall panel and the inner wall panel. The inner side of the outer wall panel is provided with a connector that is fixed to the outer wall panel. The connector includes a first connecting plate located on the inner side of the outer wall panel. The first connecting plate and the outer wall panel form a groove with an opening facing the corner post.

[0008] A second connecting plate and a third connecting plate located inside the second connecting plate are provided on the side of the corner post facing the wall panel. The second connecting plate is located inside or outside the outer wall panel, and the third connecting plate overlaps with the first connecting plate.

[0009] The connecting rivet passes through the first connecting plate and the third connecting plate to fix the first connecting plate and the third connecting plate, and the outer end of the connecting rivet is received in the groove.

[0010] The connector includes a connecting wall fixed to the inner surface of the outer wall panel, a support wall connected to the connecting wall and extending inward, and a first connecting plate formed by bending the inner end of the support wall toward the corner post.

[0011] A slot is provided on the outer side of the end of the connecting wall facing the corner post. The end of the outer wall panel facing the corner post is inserted into the slot to fix the outer wall panel to the connecting wall. The second connecting plate is attached to the inner surface of the connecting wall.

[0012] The outer wall panel and connectors are integrally formed.

[0013] The corner post includes an outer corner post and an inner corner post welded and fixed to the inside of the outer corner post; the second connecting plate is located on the outer corner post and the third connecting plate is located on the inner corner post.

[0014] The inner corner post includes a first connecting part extending from the outside to the inside, and a second connecting part bent from the first connecting part in a direction away from the side wall. Both the first connecting part and the second connecting part are welded and fixed to the inner side of the outer corner post. A third connecting plate is connected to the first connecting part and extends toward the side wall.

[0015] A bent portion is provided on the outer corner post, located inside the second connecting portion, and a receiving groove with an opening facing the wall panel is formed between the bent portion and the second connecting portion; a sealing component is provided between the corner post and the inner wall panel, with one end of the sealing component connected to the inner wall panel and the other end inserted into the receiving groove.

[0016] The sealing assembly includes a sealing plate and a sealing strip. One end of the sealing plate is fixedly connected to the inner wall plate by a rivet, and the other end of the sealing plate is inserted into a pre-set slot on the sealing strip. The sealing strip is provided with a sealing lip that is clamped in a receiving groove.

[0017] The third connecting plate overlaps the inside of the first connecting plate.

[0018] To achieve the second objective mentioned above, this utility model adopts the following technical solution:

[0019] Refrigerated compartments, including the aforementioned connecting structures for refrigerated compartments.

[0020] The beneficial effects of this utility model are as follows:

[0021] In this invention, a connector is provided on the inner side of the outer wall panel of the refrigerated truck compartment wall panel. The connector is fixedly fitted with the outer wall panel. A first connecting plate is provided on the connector at a certain distance from the outer wall panel. A second connecting plate and a third connecting plate are provided on the corner post at a certain distance, so that the third connecting plate located on the inner side fits with the first connecting plate. The third connecting plate and the first connecting plate are fixed on the inner side of the corner post and the wall panel by connecting rivets, thereby fixing the wall panel and the corner post together. During assembly, the wall panel and the corner post can be connected together from the inner side of the corner post and the wall panel by connecting rivets. The connecting rivets will not penetrate to the outer side of the wall panel and the corner post, avoiding leakage of foam material during secondary foaming. Furthermore, the connecting rivets will not be exposed to the outer surface of the refrigerated truck compartment, and the rivets will not be corroded by the external environment, improving the aesthetics of the refrigerated truck compartment and helping to extend the service life of the refrigerated truck compartment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the middle connector;

[0024] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0026] like Figure 1 , 2The diagram shows the connection structure of a refrigerated truck compartment according to Embodiment 1 of this utility model, particularly the connection structure between the side panel and the corner post of the refrigerated truck compartment. Specifically, it includes a side panel 10, a corner post 20, a connector 30, and a connecting rivet 40. The corner post 20 is located at the end of the side panel 10. The side panel 10 includes an outer side panel 11, an inner side panel 12, and an insulation layer. The inner side panel 12 is located inside the outer side panel 11, and the two are spaced apart by a certain distance. The insulation layer is located between the inner side panel 12 and the outer side panel 11 and is formed of foamed material. The connector 30 is located inside the outer side panel 11 near the end of the corner post 20. The connector 30 is fixedly engaged with the outer side panel 11. The connector 30 includes a first connecting plate 31 located inside the outer side panel 11. The first connecting plate 31 is spaced apart from the outer side panel 11 by a certain distance, thereby forming a groove between the first connecting plate 31 and the outer side panel 11. The opening of the groove faces the corner post 20. The corner post 20 is provided with a second connecting plate 211 on the side facing the side plate 10, and a third connecting plate 51 located inside the second connecting plate 211. The second connecting plate 211 is located inside the outer side plate 11. The third connecting plate 51 overlaps with the first connecting plate 31. The connecting rivet 40 passes through the first connecting plate 31 and the third connecting plate 51 to fix the first connecting plate 31 and the third connecting plate 51 together, thereby fixing the side plate 10 and the corner post 20 together. The outer side of the connecting screw 40 is received in the groove.

[0027] It should be noted that the above-mentioned connection structure of the refrigerated compartment of this utility model is not only applicable to the connection between the side panel 10 and the corner post 20, but also applicable to the connection between the end wall panel and the corner post 20 of the refrigerated compartment. In other words, the above structure can be used for the connection between the wall panel and the corner post 20 in the refrigerated compartment.

[0028] In this utility model, a connector 30 is provided on the inner side of the outer wall panel of the refrigerated truck compartment wall panel. The connector 30 is fixedly engaged with the outer wall panel. A first connecting plate 31 is provided on the connector 30 at a certain distance from the outer wall panel. A second connecting plate 211 and a third connecting plate 51 are provided on the corner post 20 at a certain distance, so that the third connecting plate 51 located on the inner side is close to the first connecting plate 31. The third connecting plate 51 and the first connecting plate 31 are fixed on the inner side of the joint between the corner post 20 and the wall panel by connecting rivets 40, thereby fixing the wall panel and the corner post 20 together. During assembly, the wall panel and the corner post 20 can be connected together from the inner side of the joint between the corner post 20 and the wall panel using connecting rivets 40. The connecting rivets will not penetrate to the outer side of the wall panel and the corner post 20, avoiding leakage of foam material during secondary foaming. Furthermore, the connecting rivets 40 will not be exposed to the outer surface of the refrigerated truck compartment, and the rivets will not be corroded by the external environment, improving the aesthetics of the refrigerated truck compartment and helping to extend the service life of the refrigerated truck compartment.

[0029] In a preferred embodiment, the connector 30 may be an aluminum profile, specifically including a connecting wall 32 and a supporting wall 33 fixed to the inner surface of the outer wall 11. The connecting wall 32 has a relatively long dimension and fits against the inner surface of the outer wall 11. The supporting wall 33 is connected to the connecting wall 32 and extends inward. The first connecting plate 31 is formed by bending the inner end of the supporting wall 32 toward the corner post 20. The connecting wall 32 can be fixed to the inner surface of the outer wall 11 by welding. Alternatively, for ease of assembly, the outer plate 11 can be inserted into the connector 30 to fix the connector 30 and the outer plate 11 together. For example, a slot 321 can be provided on the outer side of the end of the connecting wall 32 facing the corner post 20, and the end of the outer plate 11 facing the corner post 20 can be inserted into the slot 321 to fix the outer plate 11 and the connector 30 together. The second connecting plate 211 abuts against the inner surface of the connecting wall 32. When the third connecting plate 51 and the first connecting plate 31 are tightened by the connecting rivets 40, the second connecting plate 211 and the connecting wall 32 are in close contact. In other embodiments, the second connecting plate 211 can be placed on the outer side of the outer plate 11.

[0030] In some other embodiments, the connector 30 may also be integrally formed on the outer side plate 11.

[0031] The corner post 20 includes an outer corner post 21 and an inner corner post 22. The inner corner post 22 is welded to the inner side of the outer corner post 21. A second connecting plate 211 is located on the outer corner post 21, and a third connecting plate 51 is connected to the inner corner post 22. The inner corner post 22 includes a first connecting portion 221 extending from the outside to the inside and a second connecting portion 222 bent from the first connecting portion toward the direction away from the side wall 10. Both the first connecting portion 221 and the second connecting portion 222 are welded and fixed to the inner side of the outer corner post 21. The third connecting plate 51 is connected to the first connecting portion 221 and extends toward the side wall 10. Specifically, an angle iron 50 may be welded to the first connecting portion 221. The angle iron 50 includes a plate 52 that abuts against the first connecting portion 221. The third connecting plate 51 is formed by another part of the angle iron 50, that is, the inner end of the plate 52 is bent toward the side wall 10 to form the third connecting plate 51. A bent portion 211 is provided on the outer corner post 21, located inside the second connecting portion 22. A receiving groove with an opening facing the side plate 10 is formed between the bent portion 211 and the second connecting portion 222. A sealing assembly is provided between the corner post 20 and the inner side plate 12. One end of the sealing assembly is connected to the inner side plate 12, and the other end is inserted into the receiving groove. The sealing assembly specifically includes a sealing plate 60 and a sealing strip 70. One end of the sealing plate 60 is fixedly connected to the inner side plate 12 by a rivet 61, and the other end of the sealing plate 60 is inserted into a pre-set slot 72 on the sealing strip 70. A sealing lip 71 is provided on the sealing strip 70, and the sealing lip 71 is clamped in the receiving groove.

[0032] In this invention, as described above, the third connecting plate 51 overlaps the inner side of the first connecting plate 31, providing an installation base for the connecting rivet 40 through the third connecting plate 51 and the first connecting plate 31. The rivet hole for the connecting rivet 40 to pass through is provided on the first connecting plate 31 and the third connecting plate 51. In other embodiments, the third connecting plate 51 may be placed on the outer side of the first connecting plate 31.

[0033] like Figure 3 As shown, this is the connection structure of the refrigerated compartment in Embodiment 2 of this utility model. The third connecting plate 51 is integrally formed with the inner corner post 22. Specifically, the end of the inner corner post 22 facing the side plate is bent several times to form the connecting plate 51.

[0034] The refrigerated compartment of this utility model includes the above-mentioned connection structure of the refrigerated compartment. The other structures of the refrigerated compartment are the same as those in the prior art and will not be described in detail here.

[0035] 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 connection structure of a refrigerated truck compartment, characterized in that, Includes wall panels, corner posts at the ends of the wall panels, and connecting rivets; The wall panel includes an outer wall panel, an inner wall panel, and an insulation layer filled between the outer wall panel and the inner wall panel. The inner side of the outer wall panel is provided with a connector that is fixed to the outer wall panel. The connector includes a first connecting plate located on the inner side of the outer wall panel. The first connecting plate and the outer wall panel form a groove with an opening facing the corner post. A second connecting plate and a third connecting plate located inside the second connecting plate are provided on the side of the corner post facing the wall panel. The second connecting plate is located inside or outside the outer wall panel, and the third connecting plate overlaps with the first connecting plate. The connecting rivet passes through the first connecting plate and the third connecting plate to fix the first connecting plate and the third connecting plate, and the outer end of the connecting rivet is received in the groove.

2. The connection structure of the refrigerated compartment as described in claim 1, characterized in that, The connector includes a connecting wall fixed to the inner surface of the outer wall panel, a support wall connected to the connecting wall and extending inward, and a first connecting plate formed by bending the inner end of the support wall toward the corner post.

3. The connection structure of the refrigerated compartment as described in claim 2, characterized in that, A slot is provided on the outer side of the end of the connecting wall facing the corner post. The end of the outer wall panel facing the corner post is inserted into the slot to fix the outer wall panel to the connecting wall. The second connecting plate is attached to the inner surface of the connecting wall.

4. The connection structure of the refrigerated compartment as described in claim 2, characterized in that, The outer wall panel and connectors are integrally formed.

5. The connection structure of the refrigerated compartment as described in claim 1, characterized in that, The corner post includes an outer corner post and an inner corner post welded and fixed to the inside of the outer corner post; the second connecting plate is located on the outer corner post and the third connecting plate is located on the inner corner post.

6. The connection structure of the refrigerated compartment as described in claim 5, characterized in that, The inner corner post includes a first connecting part extending from the outside to the inside, and a second connecting part bent from the first connecting part in a direction away from the side wall. Both the first connecting part and the second connecting part are welded and fixed to the inner side of the outer corner post. A third connecting plate is connected to the first connecting part and extends toward the side wall.

7. The connection structure of the refrigerated compartment as described in claim 6, characterized in that, A bent portion is provided on the outer corner post, located inside the second connecting portion, and a receiving groove with an opening facing the wall panel is formed between the bent portion and the second connecting portion; a sealing component is provided between the corner post and the inner wall panel, with one end of the sealing component connected to the inner wall panel and the other end inserted into the receiving groove.

8. The connection structure of the refrigerated compartment as described in claim 7, characterized in that, The sealing assembly includes a sealing plate and a sealing strip. One end of the sealing plate is fixedly connected to the inner wall plate by a rivet, and the other end of the sealing plate is inserted into a pre-set slot on the sealing strip. The sealing strip is provided with a sealing lip that is clamped in a receiving groove.

9. The connection structure of the refrigerated compartment as described in claim 1, characterized in that, The third connecting plate overlaps the inside of the first connecting plate.

10. A refrigerated truck compartment, characterized in that, The connection structure of the refrigerated compartment as described in any one of claims 1-9.

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