CN218084502U

CN218084502U - Light composite board structure

Info

Publication number: CN218084502U
Application number: CN202222209770.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenyang Jihua Railway Engineering Technology Development Co ltd
Current assignee: Shenyang Jihua Railway Engineering Technology Development Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-20
Anticipated expiration: 2032-08-22

Abstract

The utility model relates to the light plate technical field of high-speed rail, subway, urban rail passenger vehicle and shipbuilding, aerospace field, and other demands, and discloses a light composite plate structure, which comprises a frame outer layer and an inner plate core; the outer layer of the frame forms a hollow square frame structure with the upper surface layer and the lower surface layer closed, the interior is a cavity, and the side surface is an opening structure; the inner plate core is a light plate and is inserted into the cavity through the opening structure; the upper surface layer and the lower surface layer of the outer layer of the frame are respectively provided with a plurality of inserting blocks/inserting grooves, the upper side and the lower side of the inner plate core are respectively provided with inserting grooves/inserting blocks matched with the inserting blocks/inserting grooves, and the inserting grooves and the inserting blocks jointly form a surface layer stripping prevention structure. The utility model discloses thoroughly solved the surface course of light boards such as aluminium honeycomb sandwich panel, aluminium honeycomb panel and peeled off the problem, the life of panel is longer, and the structure is more stable, and application scope is wider, reduces the cost of maintenance in the use.

Description

Light composite board structure

Technical Field

The utility model relates to a light board of demands such as high-speed railway, subway, city rail passenger vehicle and shipbuilding, aerospace field especially relates to a light composite board structure.

Background

At present, various aluminum honeycomb sandwich plates and aluminum honeycomb plates are basically aluminum plates with upper and lower surface layers and are bonded on the aluminum honeycomb sandwich plates and the aluminum honeycombs by using adhesive glue; the structure has light weight, high strength and good use effect, and is widely used in the fields of railway passenger vehicles, shipbuilding, aerospace and the like. The existing aluminum honeycomb sandwich plate and aluminum honeycomb plate type plate have the following defects: when the sheet material is impacted, frequently vibrated or torn by external force, the surface layer is easily peeled off, so that the sheet material structure is damaged and loses the use function.

In view of this, it is very important to develop a plate structure which has light weight and high strength and can prevent the peeling and falling of the plate surface layer.

Disclosure of Invention

The invention provides a novel light composite board structure, which at least provides a beneficial selection or creation condition for solving one or more technical problems in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

A lightweight composite panel structure comprising a frame outer layer and an inner core; the outer layer of the frame forms a hollow square frame structure with a closed upper surface layer and a closed lower surface layer, the interior of the frame structure is a cavity, and the side surface of the frame structure is an opening structure; the internal board core is a light board and is inserted into the cavity through the opening structure; the upper surface layer and the lower surface layer of the outer layer of the frame are respectively provided with a plurality of inserting blocks/inserting grooves, the upper side and the lower side of the inner plate core are respectively provided with inserting grooves/inserting blocks matched with the inserting blocks/inserting grooves, and the inserting grooves and the inserting blocks jointly form a surface layer stripping prevention structure.

More preferably, the insert/slot and the outer layer of the frame are of an integral structure, and the slot/insert and the inner core are of an integral structure.

More preferably, the outer layer of the frame is a carbon fiber reinforced composite board layer, a glass fiber reinforced composite board layer, a resin composite board layer or a metal board layer.

More preferably, the inner plate core is a honeycomb sandwich plate, and comprises a honeycomb and light expansion resin filled in the honeycomb, and the honeycomb and the light expansion resin jointly form a light plate whole.

More preferably, the honeycomb is a metal honeycomb, a paper honeycomb or an aramid honeycomb.

More preferably, the left side surface and the right side surface of the outer layer of the frame are closed surfaces, and the front side surface and the rear side surface are open structures; the insertion block and the insertion groove are of strip structures with the through length and the outer width and the inner width.

More preferably, a cavity wall structure is arranged in the cavity of the outer layer of the frame, and the cavity wall structure is connected with the upper layer and the lower layer and penetrates through the front side and the rear side of the outer layer of the frame to divide the cavity into a plurality of small cavities.

More preferably, the wall structure has a thickness of between 1 and 10 mm.

More preferably, the outer layer of the frame is provided with an installation step extending outwards, and the installation step and the outer layer of the frame are of an integral structure; the upside of installation step with the top surface parallel and level of upper surface layer, the downside of installation step is higher than lower surface layer.

More preferably, the mounting step is provided with a plurality of mounting holes, and the mounting holes are through holes penetrating through the upper side and the lower side of the mounting step.

The technical scheme provided by the utility model, following technological effect or advantage have at least.

Compared with the prior art, the utility model provides a pair of light composite board structure, through the skin that sets up cavity square frame structure and with the light board of inside grafting to the reinforcing connection between them is realized to the utilization prevents that the top layer from peeling off the structure, has thoroughly solved the surface course of panels such as aluminium honeycomb sandwich panel, aluminium honeycomb panel and has peeled off the problem, and the life of panel is longer, and the structure is more stable, and application scope is wider, reduces the cost of maintenance in the use.

Drawings

Fig. 1 is a schematic view of the overall structure of the light composite board provided by the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a schematic cross-sectional view of the light composite board provided by the present invention.

Fig. 4 is an enlarged view of fig. 3 at B.

Fig. 5 is an enlarged view of C in fig. 3.

Fig. 6 is another schematic view of the lightweight composite board according to the present invention.

Fig. 7 is an enlarged view of fig. 6 at D.

Reference numerals indicate the same.

1: outer layer of frame, 2: an inner core.

1-1: upper layer, 1-2: lower layer, 1-3: left layer, 1-4: right layer, 1-5: cavity wall structure, 1-6: insert block, 1-7: installation step, 1-8: and (7) installing holes.

2-1: honeycomb, 2-2: light volume expansion resin, 2-3: and (4) a slot.

Detailed Description

The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary by referring to the drawings, are intended to explain the present invention, and should not be construed as limiting the present invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

As shown in fig. 1 to 4, a lightweight composite panel structure includes a frame outer layer 1 and an inner core 2; the frame outer layer 1 forms a hollow square frame structure with a closed upper surface layer and a closed lower surface layer, the interior of the frame is a cavity, and the side surface of the frame is an opening structure; the internal board core 2 is a light board, and the internal board core 2 is inserted into the cavity through the opening structure; the upper surface layer 1-1 and the lower surface layer 1-2 of the outer layer 1 of the frame are respectively provided with a plurality of inserting blocks 1-6, the upper side and the lower side of the inner plate core 2 are respectively provided with inserting grooves 2-3 matched with the inserting blocks 1-6, and the inserting grooves 2-3 and the inserting blocks 1-6 jointly form a surface layer stripping prevention structure.

In this embodiment, the insertion blocks 1 to 6 and the outer layer 1 of the frame are integrated, and the insertion grooves 2 to 3 and the inner plate core 2 are integrated, so as to facilitate processing and assembling. In some embodiments, the insert blocks, and the insert blocks may be provided as discrete assemblies; the positions of the insert block and the slot can be interchanged, and if the insert block is arranged on the inner plate core 2 and the slot is arranged on the outer composite fiber layer 1, the effect of preventing the surface layer from being peeled off can also be achieved.

Compared with the prior art, the light composite board structure that this embodiment provided, through the skin that sets up cavity square frame structure and with the light board of inside grafting to the utilization prevents that the top layer from peeling off the structure and realizes that enhancement between them is connected, has thoroughly solved the surface course of panels such as aluminium honeycomb sandwich panel, aluminium honeycomb panel and has peeled off the problem, and the life of panel is longer, and the structure is more stable, and application scope is wider, reduces the cost of maintenance in the use.

In this embodiment, preferably, the frame outer layer 1 is a carbon fiber reinforced composite board layer, preferably, the inner core 2 is a honeycomb sandwich board, and includes a honeycomb 2-1 and light expansion resin 2-2 filled in the honeycomb 2-1, and the honeycomb 2-1 and the light expansion resin 2-2 together form a light board whole. The honeycomb 2-1 may be a metal honeycomb, a paper honeycomb, an aramid honeycomb, and the like of various types known in the art or capable of being implemented in the future.

In some embodiments, the frame outer layer 1 may be a glass fiber reinforced composite board layer, a resin composite board layer, a metal board layer, or the like, and the inner core 2 may be an inorganic foamed board, an organic material foamed board, or other lightweight porous board or lightweight board, which may have similar functions and effects; the present embodiment is not limited.

In this embodiment, preferably, the left and right side surfaces of the frame outer layer 1 are closed surfaces, and the front and rear side surfaces are open structures; the thicknesses of the upper surface layer 1-1, the lower surface layer 1-2, the left surface layer 1-3 and the right surface layer 1-4 are properly selected between 3 mm and 10mm, so that the rigidity of the outer layer 1 of the frame is ensured, and the lightness of the whole plate structure is ensured.

In this embodiment, preferably, the insertion blocks 1 to 6 are strip-shaped blocks arranged in a full length, the slots 2 to 3 are strip-shaped grooves arranged in a full length, and the cross sections of the strip-shaped blocks and the strip-shaped grooves form a trapezoidal structure with a wide outer part and a narrow inner part, so that the effect of preventing the surface layer from being separated can be achieved after the strip-shaped blocks and the strip-shaped grooves are installed in a matched manner. Obviously, according to different actual needs, those skilled in the art can change the cross-sectional shapes of the strip-shaped block and the strip-shaped groove, such as a T shape, and the like, as long as the strip-shaped block and the strip-shaped groove can achieve the effect of preventing the surface layer from being separated after being installed in a matching manner; and are not limited to the above examples.

Referring to fig. 5, the left surface layer 1-3 and the right surface layer 1-4 of the frame outer layer 1 are respectively provided with an installation step 1-7 extending outwards, the installation step 1-7 and the frame outer layer 1 are of an integral structure, the upper side of the installation step 1-7 is flush with the top surface of the upper surface layer 1-1, and the lower side of the installation step 1-7 is higher than the lower surface layer 1-2. Preferably, the lower side of the mounting step 1-7 is positioned on a middle split surface at the height between the upper surface layer 1-1 and the lower surface layer 1-2, so that when two adjacent plates are mounted, the two adjacent plates are conveniently placed upside down, the mounting step 1-7 of one plate and the mounting step 1-7 of the other plate are mounted in a lap joint matching mode, and the connection strength of the adjacent plates is improved.

In order to facilitate the installation and fixation of the plate, a plurality of installation holes 1-8 are preferably arranged on the installation steps 1-7. Preferably, the mounting holes 1 to 8 are stepped holes penetrating the upper and lower sides of the mounting steps 1 to 7. In some embodiments, the mounting holes 1-8 may be cylindrical through holes; the present embodiment is not limited.

As shown in fig. 6 to 7, in some embodiments, a cavity wall structure 1-5 is further disposed in the cavity of the outer layer 1 of the frame, and the cavity wall structure 1-5 is connected to the upper layer 1-1 and the lower layer 1-2, and penetrates through the front and rear sides of the outer layer 1 of the frame to divide the cavity into a plurality of small cavities. The arrangement of the cavity wall structure is mainly suitable for some plates with larger sizes, and the structural strength of the large-size plates can be improved. The thickness of the cavity wall structure is suitably also between 1-10 mm.

It should be noted that, in the description of the present invention, for the directional words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings, it is only for convenience of description of the present invention and simplification of the description, and it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and it should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly defined or limited, the terms "assembled", "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless otherwise specified and limited, "a first feature" on "or" under "a second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. First feature "above", "below" and "under" second feature may include first feature being directly below or obliquely below the second feature, or merely indicating that the first feature is at a lower level than the second feature.

It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims

1. A light composite board structure is characterized by comprising a frame outer layer and an inner board core; the outer layer of the frame forms a hollow square frame structure with the upper surface layer and the lower surface layer closed, the interior is a cavity, and the side surface is an opening structure; the inner plate core is a light plate and is inserted into the cavity through the opening structure; the upper surface layer and the lower surface layer of the outer layer of the frame are respectively provided with a plurality of inserting blocks/inserting grooves, the upper side and the lower side of the inner plate core are respectively provided with inserting grooves/inserting blocks matched with the inserting blocks/inserting grooves, and the inserting grooves and the inserting blocks jointly form a surface layer stripping prevention structure.

2. The lightweight composite board structure of claim 1, wherein said insert/slot is integral with said frame outer layer and said slot/insert is integral with said inner core.

3. The lightweight composite panel structure as set forth in claim 1, wherein said frame outer layer is a carbon fiber reinforced composite ply, a glass fiber reinforced composite ply, a resin composite ply or a metal ply.

4. The lightweight composite board structure as defined in claim 1, wherein said inner core is a honeycomb sandwich board comprising a honeycomb and a lightweight expanded resin filled in the honeycomb, said honeycomb and said lightweight expanded resin together forming an integral lightweight board.

5. The lightweight composite board structure of claim 4, wherein said honeycomb is a metal honeycomb, a paper honeycomb or an aramid honeycomb.

6. The light composite board structure according to claim 1, wherein the left and right side surfaces of the outer layer of the frame are closed surfaces, and the front and rear side surfaces are open structures; the insertion block and the insertion groove are of strip structures with the through length and the outer width and the inner width.

7. The light-weight composite board structure according to claim 6, wherein a cavity wall structure is arranged in the cavity of the outer layer of the frame, and the cavity wall structure is connected with the upper layer and the lower layer and penetrates through the front side and the rear side of the outer layer of the frame to divide the cavity into a plurality of small cavities.

8. A lightweight composite board structure as claimed in claim 7, wherein the wall structure is between 1 and 10mm thick.

9. The lightweight composite board structure as claimed in claim 1, wherein an outwardly extending mounting step is provided on the outer layer of the frame, the mounting step and the outer layer of the frame being of an integral structure; the upside of installation step with the top surface parallel and level of upper surface layer, the downside of installation step is higher than lower surface layer.

10. The lightweight composite board structure as claimed in claim 9, wherein a plurality of mounting holes are provided on the mounting steps, and the mounting holes are through holes penetrating the upper and lower sides of the mounting steps.