Improved rivet box body structure

Abstract

The utility model relates to the technical field of rail transit fireproof doors and fireproof dividing walls, in particular to an improved rivet box body structure. The device comprises an aluminum frame, an inner skin and an outer skin, the inner skin and the aluminum frame are riveted and fixed through a first rivet, and the outer skin and the inner skin are riveted and fixed through a second rivet; and a gap structure is arranged at the joint of the inner skin and the inner skin rivet, so that the fireproof dividing wall box body is simple in structure, and the deformation of the outer skin after the box body is riveted can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of fireproof doors and fireproof partitions for rail transit, and in particular to an improved riveted box structure. Background Technology

[0002] Fire-resistant partition walls are sandwich composite structures, consisting of two steel sheet panels on each side, a fire-resistant laminate sandwiched in the middle, and aluminum profiles forming the frame, all riveted together. Currently, because these fire-resistant partition walls need to pass the EN45545 fire resistance test, they cannot be glued together; only mechanical connections can be used to fix the sandwich structure. Due to the lack of a supporting structure in the middle of the box and the gap between the inner and outer sheet panels, the outer sheet of the box deforms and becomes uneven after riveting. Therefore, a solution is needed to address this deformation issue. Utility Model Content

[0003] The purpose of this utility model is to provide an improved riveted box structure to address the shortcomings of existing technologies, thereby achieving a simple fireproof partition box structure and effectively reducing the deformation of the outer skin after riveting.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: an improved riveted box structure, including an aluminum frame, an inner skin, and an outer skin; the inner skin is riveted to the aluminum frame by a first rivet, and the outer skin is riveted to the inner skin by a second rivet; a notch is provided at the riveting connection between the inner skin and the inner skin.

[0005] Furthermore, a deformable surface is provided at the notch location, and a second rivet mating hole is provided on the deformable surface.

[0006] Furthermore, a plurality of second rivets are provided inward around the outer skin and are riveted and fixed to the inner skin.

[0007] Furthermore, the notch, the deformed surface, and the second rivet mating hole of the inner skin correspond to the number and position of the second rivets.

[0008] Furthermore, a gap is left between the outer skin and the inner skin before they are riveted together by the second rivet.

[0009] Furthermore, several of the first rivets are arranged around the inner skin and the inner side of the aluminum frame near the edge.

[0010] The fireproof partition wall box consists of an aluminum frame, an inner skin, and an outer skin. The inner skin is riveted to the aluminum frame by a first rivet, and the outer skin is riveted to the inner skin by a second rivet. The riveted joints of the inner skin and the outer skin have notches. This structure simplifies the fireproof partition wall box structure and effectively reduces the deformation of the outer skin after riveting. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of an improved riveting box structure according to the present invention;

[0013] Figure 2 This is a schematic diagram of another perspective of the improved riveted box structure according to this utility model;

[0014] Figure 3 This is an exploded view of an improved riveted box structure according to the present invention;

[0015] Figure 4 This is a partial sectional view of an improved riveting box structure according to the present invention;

[0016] Figure 5 This is a schematic diagram of an improved rivet box structure notch according to the present invention;

[0017] Figure 6 This is an enlarged view of the notch location in an improved riveting box structure according to this utility model;

[0018] Figure 7 This is a schematic diagram of the first rivet of this utility model;

[0019] Figure label:

[0020] 1. Aluminum frame; 2. Inner skin; 3. Outer skin; 4. First rivet; 5. Second rivet; 6. Notch; 7. Deformation surface; 8. Second rivet mating hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] An improved riveted box structure, such as Figure 1 , 3 As shown in Figures 4 and 6, the structure includes an aluminum frame 1, an inner skin 2, and an outer skin 3. The inner skin 2 is riveted to the aluminum frame 1 by a first rivet 4, and the outer skin 3 is riveted to the inner skin 2 by a second rivet 5. A notch 6 is provided at the riveted connection between the inner skin 2 and the inner skin 3.

[0024] Specifically, the aluminum frame 1 serves as the supporting skeleton of the entire structure, providing a stable installation foundation and ensuring the overall stability of the fireproof partition. The inner skin 2 is riveted and fixed to the aluminum frame 1 by the first rivet 4, ensuring the strength and stability of the inner skin 2. The second rivet 5 is used to rivet and fix the outer skin 3 to the inner skin 2, thus avoiding the use of glue and meeting the fire resistance test requirements of standard EN45545. A notch 6 is set at the riveting connection between the inner skin 2 and the inner skin 2, reducing the local strength of the inner skin at the riveting point. This means that during the riveting process, deformation occurs more at the notch of the inner skin than at the outer skin 3. This not only solves the problem of outer skin deformation but also maintains the strength and stability of the overall structure. Furthermore, the effective reduction of deformation of the outer skin 3 during the riveting process further improves the flatness and aesthetics of the fireproof partition.

[0025] As a preferred embodiment of the above, such as Figure 5 , 6 As shown, a deformable surface 7 is provided at the notch 6 position, and a second rivet mating hole 8 is provided on the deformable surface 7.

[0026] Specifically, the deformation surface 7 provides an area for the inner skin 2 to deform more easily during the riveting process. When the second rivet 5 passes through the outer skin 3 and is riveted to the inner skin 2, the deformation surface 7 will deform preferentially, thereby absorbing and dispersing the stress generated during the riveting process, further reducing the deformation of the outer skin 3, improving the manufacturing precision of the product, and ensuring the stability and reliability of the product during use. The setting of the second rivet mating hole 8 is to ensure that the second rivet 5 can be accurately and stably riveted to the inner skin 2. By pre-opening the second rivet mating hole 8 on the deformation surface 7, the riveting direction of the rivet can be guided, improving the accuracy and stability of the riveting, increasing production efficiency, and reducing the difficulty and cost of operation.

[0027] As a preferred embodiment of the above, such as Figure 4 As shown, a plurality of second rivets 5 are arranged inward around the outer skin 3 and are riveted and fixed to the inner skin 2.

[0028] Specifically, by evenly distributing several second rivets 5 around the outer skin 3 and riveting them to the inner skin 2, the connection strength between the outer and inner skins can be significantly enhanced. This multi-point fixing method makes the structure more stable and less prone to deformation or loosening, not only enhancing the connection strength but also improving the overall stability of the fireproof partition. When subjected to external forces, because multiple rivets share the stress, the external forces can be more effectively dispersed and resisted, maintaining the integrity of the structure.

[0029] As a preferred embodiment of the above, such as Figure 6 As shown, the notch 6, the deformable surface 7, and the second rivet mating hole 8 of the inner skin 2 correspond in number and position to the second rivet 5.

[0030] Specifically, by aligning the number and position of the notch 6, the deformation surface 7, and the second rivet mating hole 8 with the second rivet 5, it can be ensured that each rivet accurately passes through the outer skin 3 and is riveted to the predetermined position on the inner skin 2. This avoids rivet misalignment or missed riveting, improving the accuracy and reliability of the riveting. The notch 6 and the deformation surface 7 control the deformation of the inner skin during riveting. By aligning them with the number and position of the second rivet 5, it can be ensured that each rivet acts on the deformation surface 7 during riveting, thereby more effectively dispersing and absorbing stress, reducing the deformation of the outer skin 3, and significantly improving the quality of the fireproof partition wall product. This makes the product more reliable during use and able to meet more stringent safety standards and requirements.

[0031] As a preferred embodiment of the above, such as Figure 4 As shown, a gap is left between the outer skin 3 and the inner skin 2 before they are riveted together by the second rivet 5.

[0032] Specifically, the structure with a gap between the outer skin 3 and the inner skin 2 before they are riveted together by the second rivet 5 is used to fit the outer skin 3 onto the inner skin 2, and the gap between the outer skin 3 and the inner skin 2 is for easy installation.

[0033] As a preferred embodiment of the above, such as Figure 7 As shown, several first rivets 4 are arranged around the inner skin 2 and the inner side of the aluminum frame 1 near the edge.

[0034] Specifically, by placing the first rivet 4 on the inner side of the aluminum frame 1 near the edge, the deformation caused by the riveting of the inner skin 2 to the aluminum frame 1 can be effectively reduced. It can also more effectively disperse and resist the stress under the action of external forces, avoid structural damage caused by stress concentration, and improve the durability and safety of the fireproof partition.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved riveted box structure, characterized in that: It includes an aluminum frame (1), an inner skin (2), and an outer skin (3); The inner skin (2) is riveted to the aluminum frame (1) by the first rivet (4), and the outer skin (3) is riveted to the inner skin (2) by the second rivet (5); A notch (6) is provided at the riveted connection between the inner skin (2) and the inner skin (2).

2. The improved riveted box structure according to claim 1, characterized in that, A deformable surface (7) is provided at the notch (6) position, and a second rivet mating hole (8) is provided on the deformable surface (7).

3. The improved riveted box structure according to claim 2, characterized in that, A plurality of second rivets (5) are provided inward around the outer skin (3) and are riveted together with the inner skin (2) to fix it in place.

4. The improved riveted box structure according to claim 3, characterized in that, The notch (6), the deformable surface (7), and the second rivet mating hole (8) of the inner skin (2) correspond to the number and position of the second rivet (5).

5. The improved riveted box structure according to claim 1, characterized in that, The outer skin (3) and the inner skin (2) are separated by a gap before being riveted together by the second rivet (5).

6. The improved riveted box structure according to claim 1, characterized in that, The first rivet (4) is provided in several places around the inner skin (2) and the inner side of the aluminum frame (1) near the edge.

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