Composite material double-sandwich-board connecting structure

Abstract

The utility model discloses a composite material double-sandwich-board connecting structure which comprises a first double-sandwich board and a second double-sandwich board which are fixedly connected. A first connecting angle section and a second connecting angle section are arranged on the two sides of the fixedly connected end parts of the first double-sandwich plate and the second double-sandwich plate; the first double-sandwich board comprises a first composite layer board, a first foaming layer, a second composite layer board, a second foaming layer and a second composite layer board; the second double-sandwich board comprises a fourth composite layer board, a third foaming layer, a fifth composite layer board, a fourth foaming layer and a sixth composite layer board; the end face plate is bonded with the fourth composite layer plate through structural adhesive, and the two side plates of the first connecting angle section are bonded with the first composite layer plate and the fourth composite layer plate through structural adhesive respectively. And two side plates of the second connecting angle section are respectively bonded with the third composite laminate and the fourth composite laminate through structural adhesive. The two double-sandwich boards are connected through the structural adhesive, and the connection can be firmer through the connecting angle sections on the two sides of the first double-sandwich board.

Description

Technical Field

[0001] The utility model relates to a connecting structure of a composite double sandwich panel, belonging to the technical field of connecting composite sandwich panels. Background Art

[0002] Live fish transportation has always been one of the difficult problems in the aquaculture industry. Because during transportation, the situation of live fish death often occurs, resulting in economic losses. Among the aquatic transportation boxes used in live fish transportation, considering weight and heat preservation, foam sandwich panels are the most suitable form. Double sandwich panels have good heat preservation effects and maintain sufficient in-plane stiffness. How to connect double-layer sandwich panels has become a problem to be solved. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a connecting structure of a composite double sandwich panel, which can connect two double sandwich panels perpendicularly to each other.

[0004] To solve the above technical problems, the purpose of the utility model is realized as follows:

[0005] A connecting structure of a composite double sandwich panel according to the utility model includes a first double sandwich panel and a second double sandwich panel which are fixedly connected and vertically arranged; first connecting angle members and second connecting angle members are arranged on both sides of the end parts where the first double sandwich panel and the second double sandwich panel are fixedly connected;

[0006] The first double sandwich panel includes a first composite layer board, a first foaming layer, a second composite layer board, a second foaming layer and a third composite layer board;

[0007] An end face board is arranged at the end part of the composite double sandwich panel; a reinforcing angle member is fixedly arranged at the included angle position formed by the end face board and the first composite layer board, and an L-shaped reinforcing angle member is fixedly arranged at the position below the included angle position formed by the end face board and the third composite layer board;

[0008] The second double sandwich panel includes a fourth composite layer board, a third foaming layer, a fifth composite layer board, a fourth foaming layer and a sixth composite layer board;

[0009] Two reinforcing angle members are arranged inside the third foaming layer; one side of the two reinforcing angle members inside the third foaming layer is connected to the fourth composite layer board, and the end part of the other side is in contact with the fifth composite layer board;

[0010] The end face board and the fourth composite layer board are adhesively bonded by structural adhesive; the two side plates of the first connecting angle member are adhesively bonded to the first composite layer board and the fourth composite layer board respectively by structural adhesive; the two side plates of the second connecting angle member are adhesively bonded to the third composite layer board and the fourth composite layer board respectively by structural adhesive.

[0011] On the basis of the above solution and as a preferred solution of the above solution: Two reinforcing angle members are provided inside the fourth foaming layer; one side of the two reinforcing angle members in the fourth foaming layer is connected to the sixth composite layer board, and the end of the other side is in contact with the fifth composite layer board.

[0012] On the basis of the above solution and as a preferred solution of the above solution: The first foaming layer, the second foaming layer, the third foaming layer and the fourth foaming layer are made of PVC foaming material, polyurethane foaming material, EPP foaming material, EPS foaming material or polystyrene foaming material.

[0013] On the basis of the above solution and as a preferred solution of the above solution: The first composite layer board, the second composite layer board, the third composite layer board, the fourth composite layer board, the fifth composite layer board and the sixth composite layer board are made of glass fiber reinforced composite material or carbon fiber reinforced composite material.

[0014] On the basis of the above solution and as a preferred solution of the above solution: The two reinforcing angle members in the third foaming layer are arranged back to back; the two reinforcing angle members in the fourth foaming layer are arranged back to back.

[0015] The beneficial effect of the present utility model is: A composite material double sandwich panel connection structure involved in the present utility model connects two double sandwich panels through structural adhesive, and the connection can be made more firm through the connection angle members on both sides of the first double sandwich panel. Brief Description of the Drawings

[0016] Figure 1 is a schematic diagram of the composite material double sandwich panel connection structure involved in the present utility model;

[0017] Figure 2 is Figure 1 exploded view of;

[0018] Figure 3 is a schematic diagram of the first double sandwich panel;

[0019] Figure 4 is a schematic diagram of the second double sandwich panel.

[0020] The markings in the figure are explained as follows: 1 - First double sandwich panel; 2 - Second double sandwich panel; 3 - Structural adhesive; 4 - First connection angle member; 5 - Second connection angle member; 11 - First composite layer board; 12 - First foaming layer; 13 - Second composite layer board; 14 - Second foaming layer; 15 - Third composite layer board; 16 - End panel; 17 - Reinforcing angle member; 21 - Fourth composite layer board; 22 - Third foaming layer; 23 - Fifth composite layer board; 24 - Fourth foaming layer; 25 - Sixth composite layer board. Detailed Description of the Invention

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment

[0023] Combined with Figures 1 to 4 , a detailed description of this embodiment will be given. A connecting structure for a composite double sandwich panel involved in this embodiment includes a first double sandwich panel 1 and a second double sandwich panel 2 that are fixedly connected and vertically arranged; first connecting angle members 4 and second connecting angle members 5 are provided on both sides of the end portions where the first double sandwich panel 1 and the second double sandwich panel 2 are fixedly connected.

[0024] The first double sandwich panel 1 includes a first composite layer board 11, a first foaming layer 12, a second composite layer board 13, a second foaming layer 14, and a third composite layer board 15. An end panel 16 is provided at the end of the composite double sandwich panel; a reinforcing angle member 17 is fixedly provided at the angle position formed by the end panel 16 and the first composite layer board 11, and an L-shaped reinforcing angle member 17 is fixedly provided below the angle position formed by the end panel 16 and the third composite layer board 15.

[0025] The double sandwich panel with a three-layer two-core structure can increase the heat preservation effect, and can ensure the in-plane stiffness, and can avoid wrinkling and instability of the double sandwich panel under internal pressure and overall stress. The end panels 16 provided at the four ends of the double sandwich panel can convert the in-plane shear of the first foaming layer 12 and the second foaming layer 15 into concentrated loads. The end panel 16 is made of a metal material, stainless steel or aluminum alloy, and is selected as aluminum alloy in this embodiment.

[0026] Furthermore, one of the functions of the reinforcing angle member 17 is to strengthen the strength of the double sandwich panel, and the other function is to connect with other structural members. The reinforcing angle member 17 is made of a metal material, stainless steel or aluminum alloy, and is selected as aluminum alloy in this embodiment.

[0027] The second double sandwich panel 2 includes a fourth composite layer board 21, a third foaming layer 22, a fifth composite layer board 23, a fourth foaming layer 24, and a sixth composite layer board 25. Two reinforcing angle members 17 are provided inside the third foaming layer 22; one side of the two reinforcing angle members 17 inside the third foaming layer 22 is connected to the fourth composite layer board 21, and the end of the other side is in contact with the fifth composite layer board 23. Two reinforcing angle members 17 are provided inside the fourth foaming layer 24; one side of the two reinforcing angle members 17 inside the fourth foaming layer 24 is connected to the sixth composite layer board 25, and the end of the other side is in contact with the fifth composite layer board 23. And an end panel 16 is also provided at the end of the second double sandwich panel 2.

[0028] The two reinforcing angle bars 17 in the third foam layer 22 are arranged in opposite directions; the two reinforcing angle bars 17 in the fourth foam layer 24 are arranged in opposite directions. That is, the four reinforcing angle bars 17 in the third foam layer 12 and the fourth foam layer 24 form an I-shaped structure as a whole, which can increase the strength of the double sandwich panel and can be connected to other double sandwich panels through the four reinforcing angle bars 17.

[0029] The end panel 16 is bonded to the fourth composite ply 21 by structural adhesive, and the two side panels of the first connecting angle bar 4 are respectively bonded to the first composite ply 11 and the fourth composite ply 21 by structural adhesive; the two side panels of the second connecting angle bar 5 are respectively bonded to the third composite ply 13 and the fourth composite ply 21 by structural adhesive.

[0030] Furthermore, the first foaming layer 12, the second foaming layer 14, the third foaming layer 22 and the fourth foaming layer 24 are made of PVC foaming material, polyurethane foaming material, EPP foaming material, EPS foaming material or polystyrene foaming material. In this embodiment, PVC foaming material is selected.

[0031] Furthermore, the first composite plate 11, the second composite plate 13, the third composite plate 15, the fourth composite plate 21, the fifth composite plate 23 and the sixth composite plate 25 are glass fiber reinforced composite materials or carbon fiber reinforced composite materials. In this embodiment, carbon fiber reinforced composite materials are selected.

[0032] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A composite material double sandwich panel connection structure, characterized in that: It comprises a first double sandwich panel (1) and a second double sandwich panel (2) which are fixedly connected and vertically arranged; a first connecting angle bar (4) and a second connecting angle bar (5) are arranged on both sides of the ends where the first double sandwich panel (1) and the second double sandwich panel (2) are fixedly connected; The first double sandwich panel (1) comprises a first composite layer (11), a first foaming layer (12), a second composite layer (13), a second foaming layer (14) and a third composite layer (15); An end panel (16) is provided at the end of the composite double sandwich panel; a reinforcing angle bar (17) is fixedly provided at the angle formed by the end panel (16) and the first composite layer (11); and an L-shaped reinforcing angle bar (17) is fixedly provided at the angle formed by the end panel (16) and the third composite layer (15); The second double sandwich panel (2) comprises a fourth composite layer (21), a third foaming layer (22), a fifth composite layer (23), a fourth foaming layer (24) and a sixth composite layer (25); Two reinforcing angle bars (17) are arranged inside the third foaming layer (22); one side edge of the two reinforcing angle bars (17) in the third foaming layer (22) is connected to the fourth composite layer (21), and the end of the other side edge is in contact with the fifth composite layer (23); The end panel (16) is bonded to the fourth composite layer (21) by means of a structural adhesive (3); the two side panels of the first connecting angle bar (4) are respectively bonded to the first composite layer (11) and the fourth composite layer (21) by means of a structural adhesive (3); and the two side panels of the second connecting angle bar (5) are respectively bonded to the third composite layer (15) and the fourth composite layer (21) by means of a structural adhesive (3).

2. A composite material double sandwich panel connection structure according to claim 1, characterized in that: Two reinforcing angle bars (17) are arranged inside the fourth foaming layer (24); one side edge of the two reinforcing angle bars (17) inside the fourth foaming layer (24) is connected to the sixth composite layer (25), and the end of the other side edge is in contact with the fifth composite layer (23).

3. A composite material double sandwich panel connection structure according to claim 1, characterized in that: The first foaming layer (12), the second foaming layer (14), the third foaming layer (22) and the fourth foaming layer (24) are made of PVC foaming material, polyurethane foaming material, EPP foaming material, EPS foaming material or polystyrene foaming material.

4. The composite double sandwich panel connection structure according to claim 1, characterized in that: The first composite layer (11), the second composite layer (13), the third composite layer (15), the fourth composite layer (21), the fifth composite layer (23) and the sixth composite layer (25) are glass fiber reinforced composite materials or carbon fiber reinforced composite materials.

5. The composite double sandwich panel connection structure according to claim 1, characterized in that: The two reinforcing angle bars (17) in the third foaming layer (22) are arranged opposite to each other; and the two reinforcing angle bars (17) in the fourth foaming layer (24) are arranged opposite to each other.

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