Side plate and top plate connection structure for heat insulated box body, and heat insulated box body

Abstract

A side plate and top plate connection structure for a heat insulated box body, and a heat insulated box body. The side plate and top plate connection structure for a heat insulated box body comprises a top plate (20), a side plate (10) and a top corner seal (30); the side plate (10) comprises an inner side plate (12), an outer side plate (11), and a connecting block (16) which is arranged between the outer side plate (11) and the inner side plate (12) and located at the top of the side plate (10). The top plate (20) comprises an inner top plate (22) and an outer top plate (21) which is connected to the outer side plate (11). The top corner seal (30) comprises a fixing piece (31), a first sealing piece (32) and a second sealing piece (33), the fixing piece (31) being arranged on the top surface of the connecting block (16) and connected to the connecting block (16), the first sealing piece (32) extending downwards from the inner side edge of the fixing piece (31) and pressed on the inner surface of the inner side plate (12), and the second sealing piece (33) extending obliquely upwards from the inner side edge of the fixing piece (31) and pressed on the inner surface of the inner top plate (22). The present application can avoid the problem of poor sealing effect or difficulty in mounting bottom corner seals caused by machining errors and assembly errors of parts, and can achieve better sealing effect with respect to top plates having different thicknesses.

Description

Connection structure of side panels and top panels of thermal insulation box and thermal insulation box Technical Field

[0001] The present application relates to the technical field of thermal insulation boxes, and in particular to a connection structure between a side panel and a top panel of a thermal insulation box and the thermal insulation box. Background Art

[0002] With the continuous improvement of people's living standards, cold chain logistics and transportation have developed rapidly. Refrigerated containers, refrigerated trucks and other cold chain transportation tools have become an important part of today's transportation system. The existing refrigerated containers and refrigerated trucks all have side panels and top panels. The side panels and top panels are both set as sandwich structures. The insulation layer is formed inside the sandwich by foaming or other means to block the heat transfer inside and outside the box. In order to ensure the sealing of the connection between the side panels and the top panel, it is necessary to connect the top corner seals on the inner side of the side panels and the top panel. Specifically, the side panels include inner side panels and outer side panels, and the top panel includes inner top panel and outer top panel. The top corner seals are connected between the inner side panels and the inner top panel. In the existing structure, the top corner seals are generally in the shape of a plate, which is placed between the inner side panel and the inner top panel, and are connected to the inner panel and the inner top panel respectively by rivets. This installation method of the top corner seal requires... Rivets are inserted into the joints between the top corner seal and the inner top panel and the inner side panel, resulting in a complicated installation process and low installation efficiency. Some top corner seals are provided with slots on both sides so that the edges of the inner side panel and the inner top panel are respectively inserted into the slots on both sides of the top corner seal. Although the installation process of this type of top corner seal is relatively simple, due to the processing errors and assembly errors of the side panels and the top panel, the gap formed between the inner side panel and the inner top panel is not fixed. When the gap between the inner side panel and the inner top panel is too large, it is difficult for the inner top panel and the inner side panel to be fully inserted into the slots of the top corner seal, which affects the sealing performance of the joint between the top panel and the side panel. When the gap between the inner panel and the inner top panel is small, it is difficult to install the top corner seal.

[0003] Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the purpose of this application is to propose a connection structure between the side panels and the top panel of the insulation box, so as to reduce the difficulty of installing the top corner seal while ensuring better sealing at the joints between the top panel and the side panels.

[0005] The second purpose of this application is to provide a thermal insulation box.

[0006] To achieve the above-mentioned purpose 1, this application adopts the following technical solutions:

[0007] The connection structure between the side panels and the top panel of the thermal insulation box includes the top panel, the side panels, and the top corner seals;

[0008] The side panels include an inner panel, an outer panel, and a connecting block placed between the outer panel and the inner panel and located on the top of the side panels;

[0009] Top plate, including inner top plate and outer top plate connected with outer side plate;

[0010] The top corner seal includes a fixing plate, a first sealing plate and a second sealing plate. The fixing plate is placed on the top surface of the connecting block and connected to the connecting block. The first sealing plate extends downward from the inner side edge of the fixing plate and is pressed on the inner surface of the inner plate. The second sealing plate extends upward at an angle from the inner side edge of the fixing plate and is pressed on the inner surface of the inner top plate.

[0011] The first sealing sheet is provided with a first pressing portion bent outwardly to press against the inner surface of the inner plate on one side away from the fixing sheet; the second sealing sheet is provided with a second pressing portion bent upwardly to press against the inner surface of the inner top plate on one end away from the fixing sheet.

[0012] The side panels also include a plurality of reinforcing beams fixed on the inner surface of the outer side panels and extending along the height direction of the side panels, and the connecting blocks are fixedly connected to the inner sides of the tops of the reinforcing beams.

[0013] The side panels include lower top side beams connected to the tops of the outer side panels, and the top panels include upper top side beams connected to the sides of the outer top panels. The lower top side beams and the upper top side beams are fixedly connected together in an assembleable manner.

[0014] A pressing surface is provided on the upper top side beam, and the pressing surface is pressed on the upper surface of the outer edge of the fixing plate.

[0015] The lower top side beam is provided with a lower web and a lower wing plate formed by bending the top of the lower web, and the outer side plate is fixedly connected to the lower web by rivets or bolts; the upper top side beam includes a first upper web and a first upper wing plate formed by bending the top of the first upper web, the first upper web and the lower web are abutted against each other and fixed together by rivets or bolts, and the lower surface of the first upper wing plate forms a compression surface.

[0016] The upper top side beam also includes a second upper web extending upward from one side of the first upper wing plate, and a second upper wing plate extending inward from the inner side surface of the second upper web plate. The outer top plate is overlapped on top of the second upper wing plate, and a support block is clamped between the second upper wing plate and the inner top plate. The outer top plate, the second upper wing plate and the support block are fixed together by rivets or bolts.

[0017] The space enclosed by the lower web, the lower wing plate, the top surface of the reinforcing beam and the connecting blocks is filled with fixing blocks.

[0018] The fixing block and the connecting block are formed in one piece.

[0019] To achieve the above-mentioned second objective, this application adopts the following technical solutions:

[0020] The heat-insulating box body comprises the connection structure between the side panels and the top panel of the heat-insulating box body.

[0021] The beneficial effects of this application are:

[0022] During assembly, the present application pre-connects the fixing piece of the top corner seal to the connecting block at the top of the side panel, so that the first sealing piece on the top corner seal is pressed against the inner side panel. Then, when assembling the top panel and the side panel, it is only necessary to connect the side panel and the top panel together so that the inner top panel can press against the second sealing piece of the top corner seal. Therefore, during assembly, no matter whether the width of the gap formed between the inner top panel and the inner side panel is greater than or less than the design value, the first sealing piece and the second sealing piece can be pressed against the inner side panel and the inner top panel respectively to achieve sealing, thereby avoiding the problem of poor sealing effect or difficulty in installing the bottom corner seal due to processing errors and assembly errors of the components. In addition, during assembly, it is only necessary to fix the outer top panel and the outer side panel in connection so that the inner top panel can be used to press the second sealing piece downward, thereby achieving better sealing effect for top panels of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the structure of this application;

[0024] FIG2 is a schematic diagram of the installation of this application. DETAILED DESCRIPTION

[0025] The present application is further described below with reference to the accompanying drawings and specific implementations:

[0026] As shown in Figures 1 and 2, the present invention is a connection structure between the side panels and the top panel of an insulation box, specifically, a connection structure between the side panels and the top panel of a refrigerated compartment, which includes a top panel 20, a side panel 10, and a top corner seal 30. The side panel 10 includes an inner panel 12, an outer panel 11, and a connecting block 16, wherein the inner panel 12 and the outer panel 11 are arranged at a certain distance to form a sandwich structure, and a layer of insulation layer can be filled between the two by a foaming process or other methods. The connecting block 16 is placed between the outer side panel 11 and the inner side panel 12 and is located on the top of the side panel 10; the top panel 20 includes an inner top panel 22 and an outer top panel 21, and the inner top panel 22 and the outer top panel 21 are arranged at a certain distance from each other to form a sandwich structure. A layer of insulation layer is filled between the inner top panel 22 and the outer top panel 21. When assembling, the outer side panel 11 and the outer top panel 21 are connected, and the gap formed between the top of the inner side panel 12 and the side of the inner top panel 22 is covered with the top corner seal 30 to prevent the inner side from When the top plate 20 and the side plate 10 are assembled, the inner top plate 22 squeezes the second sealing sheet 33 downward, so that the second sealing sheet 33 is pressed against the inner surface of the inner top plate 22 after a certain deformation is generated.

[0027] 2, when assembling the side panels 10 and the top panel 20, the fixing piece 31 of the top corner seal 30 is fixed to the top surface of the connecting block 16 by screws or other connecting methods. After the fixing piece 31 is fixed to the connecting block 16, the first sealing piece 32 is placed on the inner side of the inner side panel 12 and pressed against the inner surface of the inner side panel 12. Then, the edge of the top panel 20 is placed above the side panel 10, so that the top panel 20 is close to the side panel 10. When the top panel 20 and the side panel 10 are in place, the outer top panel 21 is fixed to the outer panel 11. They are fixedly connected together. In the process of the top plate 20 moving downwardly close to the side plate 10, the inner top plate 22 presses the second sealing sheet 33 downwardly, causing the second sealing sheet 33 to deform. Finally, the second sealing sheet 33 will be pressed tightly against the lower surface of the inner top plate 22. In this way, the first sealing sheet 32 ​​and the second sealing sheet 33 of the top corner seal 30 are pressed tightly against the inner surface of the inner side plate 12 and the lower surface of the inner top plate 22, respectively, and then the gap between the inner side plate 12 and the inner top plate 22 is sealed to seal the inner side of the side plate 10 and the top plate 20 at the joint.

[0028] When the top panel 20 and the side panel 10 are assembled, the fixing piece 31 of the top corner seal 30 is connected to the connecting block 16 at the top of the side panel 10 in advance, so that the first sealing piece 32 on the top corner seal 30 is pressed and fitted with the inner side panel 12. Then, when the top panel 20 and the side panel 10 are assembled, it is only necessary to connect the side panel 10 and the top panel 20 together so that the inner top panel 22 can press the second sealing piece 33 of the top corner seal 30. Therefore, during assembly, no matter whether the width of the gap formed between the inner top panel 22 and the inner panel 12 is greater than or less than the design value, the first sealing piece 32 and the second sealing piece 33 can be pressed and fitted with the inner side panel 11 and the inner top panel 21 respectively to achieve sealing, avoiding the problem of poor sealing effect or difficulty in installing the bottom corner seal 30 due to processing errors and assembly errors of the components; in addition, during assembly, it is only necessary to fix the outer top panel 21 to the outer side panel 11, so that the inner top panel 12 can be used to press the second sealing piece 33 downward, and a better sealing effect can be achieved for top panels 20 of different thicknesses.

[0029] In a preferred embodiment, the present application may be to provide a first pressing portion 321 bent outward on the side of the first sealing sheet 32 ​​away from the fixing sheet 31, that is, the bottom of the first sealing sheet 32 ​​is bent outward, and when the fixing sheet 31 is fixed to the connecting block 16 according to the predetermined position, the inner surface of the inner plate 12 squeezes the first pressing portion 321 inward, so that the first sealing sheet 32 ​​and the first pressing portion 321 can be fully deformed, thereby achieving a better sealing effect between the first sealing sheet 32 ​​and the inner plate 12. A second pressing portion 331 bent upward is provided on the side of the second sealing sheet 33 away from the fixing sheet 31, and the second pressing portion 331 is squeezed downward by the inner top plate 22, so that the second sealing sheet 33 and the second pressing portion 331 can be fully deformed, thereby achieving a better sealing effect between the second sealing sheet 33 and the inner top plate 22.

[0030] In order to ensure that the side panel 10 has better strength, the side panel 10 of the present application also includes a plurality of reinforcing beams 13 fixed on the inner surface of the outer panel 11 and extending along the height direction of the side panel 10. The plurality of reinforcing beams 13 are arranged along the length direction of the box body, and the connecting block 16 is fixedly connected to the inner side of the top of the reinforcing beam 13, so that the upper surface of the connecting block 16 can be placed on the top of the side panel 10, so that the fixing plate 31 can be placed flat on the upper surface of the connecting block 16, and then the fixing plate 31 can be conveniently connected to the connecting block 16 using screws or other connecting parts.

[0031] In the present application, the side panel 10 includes a lower top side beam 14, which is connected to the top of the outer side panel 11, and the top panel 20 includes an upper top side beam 15, which is connected to the side of the outer top panel 21. The lower top side beam 14 and the upper top side beam 15 are fixedly connected together in an assemblable manner. For example, the lower top side beam 14 and the upper top side beam 15 can be fixed by rivets or bolts to form a top side beam assembly. The top side beam assembly is placed at the connection between the side panel 10 and the top panel 20 to enhance the strength of the box body, and the upper top side beam 15 and the lower top side beam 14 form a connecting component when the top panel 20 and the side panel 10 are assembled, so as to facilitate the assembly of the top panel 20 and the side panel 10. Specifically, the upper top side beam 15 is fixed to the side panel 20, and the lower top side beam 14 is fixed to the side panel 10. When the top panel 20 and the side panel 10 are assembled, it is only necessary to connect the upper top side beam 15 and the lower top side beam 14 according to a predetermined assembly relationship and then lock the two by rivets or bolts, that is, the assembly of the top panel 20 and the side panel 10 is completed quickly. In this way, the side panels 10 and the top panel 20 of the box body can be pre-processed into a single-piece structure of the box body. After transporting multiple single side panels 10 and multiple single top panels 20, the side panels 10 and the top panel 20 are assembled separately. This can reduce transportation costs and realize rapid assembly of the box body.

[0032] In order to ensure that the fixing plate 31 is properly positioned on the connecting block 16 and prevent the fixing plate 31 from shifting and affecting the sealing performance, the present application provides a pressing surface on the upper top side beam 15. After the top panel 20 is lowered and docked with the side panel 10, the pressing surface is pressed against the upper surface of the outer edge of the fixing plate 31, and the outer edge of the fixing plate 31 is clamped by the upper top side beam 15 and the connecting block 16. For example, the upper top side beam 15 and the lower top side beam 14 can be profiles. The lower top side beam 14 includes a lower web 141 and a lower wing plate 142 formed by bending the top of the lower web 141. The lower web 141 is placed on the top and outside of the outer panel 11, and rivets or bolts are passed through the lower web 141 and the outer panel 11 to fix the two together. Of course, in other embodiments, the lower web 141 can also be placed on the inner side of the outer panel 11, and rivets or bolts are passed through the lower web 141 and the two are fixed together. The upper top side beam 15 includes a first upper web 151 and a first upper wing plate 152 formed by bending the top of the first upper web 151. The first upper web 151 and the lower web 141 are abutted against each other. The first upper web 151 and the lower web 141 are fixed together by rivets or bolts passing through the two. The lower surface of the first upper wing plate 152 forms the above-mentioned pressing surface.

[0033] In order to facilitate the connection of the upper top side beam 15 to the side edge of the top plate 20, the upper top side beam 15 also includes a second upper web 153 extending upward from one side of the first upper web 152, and a second upper wing plate 154 extending inward from the inner side surface of the second upper web 153. The side edge of the outer top plate 21 is overlapped above the second upper wing plate 154, and a support block 23 is clamped between the second upper wing plate 154 and the inner top plate 22. The outer top plate 21, the second upper wing plate 154 and the support block 23 are fixed together by rivets or bolts, connecting the upper top side beam 15 to the side edge of the top plate 20, and using the support block 23 to block the gap between the inner top plate 22 and the upper top side beam 15, so that the two sides of the interlayer formed between the outer top plate 21 and the inner top plate 22 are closed. In this way, it is convenient to form a thermal insulation layer between the outer top plate 21 and the inner top plate 22 through the foaming process.

[0034] The space enclosed by the lower web 141, lower wing 142, top surface of the reinforcing beam 16, and connecting block 16 is filled with a fixing block 17, which blocks the top of the reinforcing beam 16. Together, the fixing block 17 and connecting block 16 block the top of the side panel 10, sealing the top of the sandwich formed between the outer panel 11 and the inner panel 12. This facilitates the formation of an insulation layer between the outer panel 11 and the inner panel 12 through a foaming process. In other embodiments, the fixing block 17 and connecting block 16 are integrally formed, and preferably, wooden strips can be used for the fixing block 17 and connecting block 16.

[0035] The insulation box of the present application includes the connection structure of the side panels and the top panel of the insulation box. The other structures of the insulation box are the same as those in the prior art and will not be described in detail here. The insulation box can be not only the compartment of the refrigerated truck mentioned above, but also the box of a refrigerated container.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements 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 the present application.

Claims

1. The connection structure between the side plate and the top plate of the heat preservation box is characterized by: Including top plate, side plate, and top corner seal; The side panels include an inner side panel, an outer side panel, and a connecting block disposed between the outer side panel and the inner side panel and located at the top of the side panel; A top plate, comprising an inner top plate and an outer top plate connected to an outer side plate; The top corner seal includes a fixing plate, a first sealing plate and a second sealing plate. The fixing plate is placed on the top surface of the connecting block and connected to the connecting block. The first sealing plate extends downward from the inner side edge of the fixing plate and is pressed on the inner surface of the inner plate. The second sealing plate extends upward obliquely from the inner side edge of the fixing plate and is pressed on the inner surface of the inner top plate.

2. The connection structure between the side plate and the top plate of the heat preservation box according to claim 1, characterized in that: The first sealing sheet is provided with a first pressing portion bent outwardly to press against the inner surface of the inner plate at one side away from the fixing sheet; the second sealing sheet is provided with a second pressing portion bent upwardly to press against the inner surface of the inner top plate at one end away from the fixing sheet.

3. The connection structure between the side plate and the top plate of the heat preservation box according to claim 1, characterized in that: The side plate also includes a plurality of reinforcing beams fixed on the inner surface of the outer side plate and extending along the height direction of the side plate, and the connecting block is fixedly connected to the inner side of the top of the reinforcing beam.

4. The connection structure between the side plate and the top plate of the heat preservation box according to claim 3, characterized in that: The side plate comprises a lower top side beam connected to the top of the outer side plate, and the top plate comprises an upper top side beam connected to the side of the outer top plate. The lower top side beam and the upper top side beam are fixedly connected together in an assembleable manner.

5. The connection structure between the side plate and the top plate of the heat preservation box according to claim 4, characterized in that: A pressing surface is arranged on the upper top side beam, and the pressing surface is pressed on the upper surface of the outer edge of the fixing plate.

6. The connection structure between the side plate and the top plate of the heat preservation box according to claim 5, characterized in that: The lower top side beam is provided with a lower web and a lower wing plate formed by bending the top of the lower web, and the outer side plate is fixedly connected to the lower web by rivets or bolts; the upper top side beam includes a first upper web and a first upper wing plate formed by bending the top of the first upper web, the first upper web and the lower web are abutted against each other and fixedly connected together by rivets or bolts, and the lower surface of the first upper wing plate forms a pressing surface.

7. The connection structure between the side plate and the top plate of the heat preservation box according to claim 6, characterized in that: The upper top side beam also includes a second upper web extending upward from one side of the first upper wing plate, and a second upper wing plate extending inward from the inner side of the second upper web. The outer top plate is overlapped on top of the second upper wing plate, and a support block is clamped between the second upper wing plate and the inner top plate. The outer top plate, the second upper wing plate and the support block are fixed together by rivets or bolts.

8. The connection structure between the side plate and the top plate of the heat preservation box according to claim 6, characterized in that: The space surrounded by the lower web, the lower wing plate, the top surface of the reinforcing beam and the connecting blocks is filled with fixing blocks.

9. The connection structure between the side plate and the top plate of the heat preservation box according to claim 8, characterized in that: The fixing block and the connecting block are integrally formed.

10. The heat preservation box is characterized in that: The invention comprises a connection structure between a side plate and a top plate of a heat preservation box body as described in any one of claims 1 to 9.

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