Multifunctional glass fiber composite material skin structure

Abstract

The utility model relates to the technical field of skin structures, in particular to a multifunctional glass fiber composite material skin structure which comprises a composite material skin structure, the composite material skin structure comprises an inner glass fiber reinforced plastic layer and an outer glass fiber reinforced plastic layer which are arranged on the front surface and the rear surface, and a first carbon fiber prepreg layer is fixedly installed on the inner wall of the inner glass fiber reinforced plastic layer. A first reinforcing mesh is fixedly installed on the side, away from the inner glass fiber reinforced plastic layer, of the first carbon fiber prepreg layer, a second carbon fiber prepreg layer is fixedly installed on the inner wall of the outer glass fiber reinforced plastic layer, and a second reinforcing mesh is fixedly installed on the side, away from the outer glass fiber reinforced plastic layer, of the second carbon fiber prepreg layer. According to the composite material skin structure, the structure is simple, the composite material skin structure is arranged, so that the composite material skin structure has the excellent performance of light weight, high rigidity, heat preservation and flame retardance, and the composite material skin structure is very practical.

Description

Technical Field

[0001] The utility model relates to the technical field of skin structures, in particular to a multifunctional glass fiber composite material skin structure. Background Art

[0002] The skin is a layer of metal plate covered on the longitudinal and transverse ribs of the space frame to form a joint action system. The skin can withstand in-plane tension, compression and shear stresses. It is equivalent to a continuously distributed support and plays a role in spatial force.

[0003] The skin in the prior art does not have a composite material skin structure, and thus does not have the excellent properties of light weight, high rigidity, heat preservation, and flame retardancy.

[0004] Therefore, it is necessary to design a multifunctional glass fiber composite skin structure to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a multifunctional glass fiber composite material skin structure to improve the skin with a composite material skin structure, so that it has excellent properties such as light weight, high rigidity, heat preservation and flame retardancy, thereby solving the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multifunctional glass fiber composite skin structure comprises a composite skin structure, wherein the composite skin structure comprises an inner glass fiber reinforced plastic layer and an outer glass fiber reinforced plastic layer on the front and rear surfaces, a first carbon fiber prepreg layer is fixedly installed on the inner wall of the inner glass fiber reinforced plastic layer, a first reinforcing mesh is fixedly installed on the side of the first carbon fiber prepreg layer away from the inner glass fiber reinforced plastic layer, a second carbon fiber prepreg layer is fixedly installed on the inner wall of the outer glass fiber reinforced plastic layer, a second reinforcing mesh is fixedly installed on the side of the second carbon fiber prepreg layer away from the outer glass fiber reinforced plastic layer, a thermal insulation foam layer is installed between the second reinforcing mesh and the adjacent side of the first reinforcing mesh, and a skin mounting frame is installed on the back side of the composite skin structure.

[0008] As a preferred solution of the utility model, the inner fiberglass layer and the outer fiberglass layer are composite materials composed of glass fiber and glass cloth as reinforcing materials and synthetic resin as matrix material.

[0009] As a preferred solution of the utility model, the first carbon fiber prepreg layer and the second carbon fiber prepreg layer are both composite materials having carbon fibers and resin that are partially cured in advance, wherein the resin is specifically any one of unsaturated polyester, epoxy resin or phenolic resin.

[0010] As a preferred solution of the utility model, the first reinforcing mesh and the second reinforcing mesh are both woven into a mesh structure using steel wires, and a plurality of reinforcing ribs are evenly spaced and arranged inside the first reinforcing mesh and the second reinforcing mesh.

[0011] As a preferred solution of the utility model, a flame retardant cloth is installed on the periphery of the thermal insulation foam layer.

[0012] As a preferred solution of the utility model, fixing holes are provided around the skin mounting frame, and a cross-shaped reinforcing support rod is installed on the inner side of the skin mounting frame.

[0013] Beneficial effect: With regard to the skin in the prior art, which does not have a composite skin structure and thus does not have the excellent performance problems of light weight, high rigidity, heat preservation and flame retardancy, in the utility model, the first carbon fiber prepreg layer, the first reinforcing mesh, the heat-insulating foam layer covered with flame-retardant cloth, the second reinforcing mesh, and the second carbon fiber prepreg layer are arranged between the inner fiberglass layer and the outer fiberglass layer to form a composite skin structure, so that the entire skin has excellent performances such as light weight, high rigidity and low production cost. At the same time, the first carbon fiber prepreg layer and the second carbon fiber prepreg layer maintain the high strength and light weight characteristics of carbon fiber in the composite skin structure, and give it good bonding performance inside, and by fixing the first reinforcing mesh and the second reinforcing mesh, the composite skin structure is strengthened and supported internally to increase the strength of the bonding surface. At the same time, the heat-insulating foam layer covered with flame-retardant cloth makes the composite skin structure have heat preservation and flame retardancy. The structure is simple and has a composite skin structure, so that it has excellent performances of light weight, high rigidity, heat preservation and flame retardancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall stereogram of a multifunctional glass fiber composite material skin structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a composite material skin structure of a multifunctional glass fiber composite material skin structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of point A in the figure.

[0017] In the figure: 1. composite skin structure; 11. inner fiberglass layer; 12. first carbon fiber prepreg layer; 13. first reinforcing mesh; 14. thermal insulation foam layer; 141. flame retardant cloth; 15. second reinforcing mesh; 16. second carbon fiber prepreg layer; 17. outer fiberglass layer; 2. skin mounting frame; 21. fixing holes. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0022] See also Figure 1-3 , the utility model provides a technical solution:

[0023] A multifunctional glass fiber composite skin structure comprises a composite skin structure 1, wherein the composite skin structure 1 comprises an inner glass fiber reinforced plastic layer 11 and an outer glass fiber reinforced plastic layer 17 on the front and rear surfaces, a first carbon fiber prepreg layer 12 is fixedly installed on the inner wall of the inner glass fiber reinforced plastic layer 11, a first reinforcing mesh 13 is fixedly installed on the side of the first carbon fiber prepreg layer 12 away from the inner glass fiber reinforced plastic layer 11, a second carbon fiber prepreg layer 16 is fixedly installed on the inner wall of the outer glass fiber reinforced plastic layer 17, a second reinforcing mesh 15 is fixedly installed on the side of the second carbon fiber prepreg layer 16 away from the outer glass fiber reinforced plastic layer 17, a thermal insulation foam layer 14 is installed between the second reinforcing mesh 15 and the adjacent side of the first reinforcing mesh 13, and a skin mounting frame 2 is installed on the back of the composite skin structure 1.

[0024] Specifically, the inner glass fiber reinforced plastic layer 11 and the outer glass fiber reinforced plastic layer 17 are composite materials composed of glass fiber and glass cloth as reinforcing materials and synthetic resin as matrix materials. The first carbon fiber prepreg layer 12 and the second carbon fiber prepreg layer 16 are composite materials that are partially cured in advance by carbon fiber and resin, wherein the resin is specifically any one of unsaturated polyester, epoxy resin or phenolic resin. The first reinforcing mesh 13 and the second reinforcing mesh 15 are both woven into a mesh structure using steel wires, and a plurality of reinforcing ribs are evenly spaced inside the first reinforcing mesh 13 and the second reinforcing mesh 15. The outer sleeve of the thermal insulation foam layer 14 is provided with a flame retardant cloth 14. The first carbon fiber prepreg layer 12 and the second carbon fiber prepreg layer 16 are provided between the inner glass fiber reinforced plastic layer 11 and the outer glass fiber reinforced plastic layer 17. The prepreg layer 12, the first reinforcing mesh 13, the thermal insulation foam layer 14 coated with the flame-retardant cloth 141, the second reinforcing mesh 15, and the second carbon fiber prepreg layer 16 constitute a composite skin structure 1, so that the entire skin has excellent properties such as light weight, high rigidity, and low production cost. At the same time, the first carbon fiber prepreg layer 12 and the second carbon fiber prepreg layer 16 maintain the high strength and light weight characteristics of carbon fiber in the composite skin structure 1, and give it good internal bonding properties. By fixing the first reinforcing mesh 13 and the second reinforcing mesh 15, the composite skin structure 1 is strengthened and supported internally to increase the strength of the bonding surface. At the same time, the thermal insulation foam layer 14 coated with the flame-retardant cloth 141 makes the composite skin structure have thermal insulation and flame retardant properties.

[0025] Preferably, fixing holes 21 are provided around the skin mounting frame 2, and a cross-shaped reinforcing support rod is installed on the inner side of the skin mounting frame 2. Fixing parts are used through the fixing holes 21 on the skin mounting frame 2 to perform mutual assembly and installation of multiple composite skin structures 1.

[0026] In summary, the utility model not only has a simple structure but also has a composite material skin structure, so that it has excellent properties of light weight, high rigidity, heat preservation and flame retardancy, and is very practical.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional glass fiber composite skin structure, comprising a composite skin structure (1), characterized in that The composite material skin structure (1) comprises an inner glass fiber reinforced plastic layer (11) and an outer glass fiber reinforced plastic layer (17) on the front and rear surfaces; a first carbon fiber prepreg layer (12) is fixedly installed on the inner wall of the inner glass fiber reinforced plastic layer (11); a first reinforcing mesh (13) is fixedly installed on the side of the first carbon fiber prepreg layer (12) away from the inner glass fiber reinforced plastic layer (11); a second carbon fiber prepreg layer (16) is fixedly installed on the inner wall of the outer glass fiber reinforced plastic layer (17); a second reinforcing mesh (15) is fixedly installed on the side of the second carbon fiber prepreg layer (16) away from the outer glass fiber reinforced plastic layer (17); a thermal insulation foam layer (14) is installed between the second reinforcing mesh (15) and the adjacent side of the first reinforcing mesh (13); and a skin mounting frame (2) is installed on the back of the composite material skin structure (1).

2. The multifunctional glass fiber composite material skin structure according to claim 1, characterized in that: The inner glass fiber reinforced plastic layer (11) and the outer glass fiber reinforced plastic layer (17) are composite materials formed by using glass fiber and glass cloth as reinforcing materials and synthetic resin as matrix material.

3. The multifunctional glass fiber composite material skin structure according to claim 1, characterized in that: The first carbon fiber prepreg layer (12) and the second carbon fiber prepreg layer (16) are both composite material structures of carbon fibers and resin that have been partially cured in advance, wherein the resin is specifically any one of unsaturated polyester, epoxy resin or phenolic resin.

4. The multifunctional glass fiber composite material skin structure according to claim 1, characterized in that: The first reinforcing mesh sheet (13) and the second reinforcing mesh sheet (15) are both made of steel wires woven into a mesh structure, and a plurality of reinforcing ribs are evenly spaced and arranged inside the first reinforcing mesh sheet (13) and the second reinforcing mesh sheet (15).

5. The multifunctional glass fiber composite material skin structure according to claim 1, characterized in that: The outer periphery of the thermal insulation foam layer (14) is sheathed with a flame retardant cloth (141).

6. The multifunctional glass fiber composite material skin structure according to claim 1, characterized in that: The skin mounting frame (2) is provided with fixing holes (21) around its periphery, and a cross-shaped reinforcing support rod is installed on the inner side of the skin mounting frame (2).

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