CN218315592U - Three-layer plate structure - Google Patents

Abstract

The utility model relates to a three-layer plate structure, which comprises an inner plate and two outer plates; the inner plate is provided with a plurality of cavities, and at least one side of each cavity in the thickness direction of the inner plate is provided with an opening; the two outer plates are respectively attached to two sides of the inner plate in the thickness direction, the outer plate adjacent to the opening side of the inner plate is convexly provided with a plurality of reinforcing parts towards the inner plate, the reinforcing parts correspond to the cavities one by one, each reinforcing part can extend into the cavity from the opening of the corresponding cavity, and one end of each reinforcing part close to the inner plate is abutted to one side, opposite to the opening, of the inner wall of the cavity; and the cavity is filled with noise reduction materials from the opening. This scheme still has improved noise reduction performance when guaranteeing three-layer plate structure's bulk strength, and bearing performance, and then makes the user obtain better experience.

Description

Three-layer plate structure

Technical Field

The utility model relates to a panel technical field especially relates to a three-layer plate structure.

Background

Along with the improvement of living standard and aesthetic appreciation of people, people put forward higher aesthetic requirements on both architectural interior and furniture veneering decoration. The existing wood boards for decoration are mostly core-board boards, the surface layers of the front and back surfaces of the core-board are all made of wood boards or thinner rotary-cut wood chips, and the middle layer is formed by splicing whole boards or wood strips.

For example, patent CN 205591467U discloses an equal-thickness solid wood three-layer board, which is formed by stacking three single boards with the same thickness and in a preset interval, so as to increase the strength of the whole structure and improve the bearing performance. However, when the structural strength is ensured, the three layers of veneers are all set to be solid wood, and the noise reduction function is relatively poor.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a three-layer plate structure, which solves the problem of the prior art that the noise reduction function of the three-layer plate structure is relatively poor.

The utility model provides a three-layer plate structure, this three-layer plate structure includes:

the inner plate is provided with a plurality of cavities, and at least one side of each cavity in the thickness direction of the inner plate is provided with an opening; and (c) a second step of,

the two outer plates are respectively attached to two sides of the inner plate in the thickness direction, a plurality of reinforcing parts are convexly arranged on the outer plate adjacent to the opening side of the inner plate towards the inner plate, the plurality of reinforcing parts correspond to the plurality of cavities one by one, each reinforcing part can extend into the cavity from the corresponding opening of the cavity, and one end of each reinforcing part close to the inner plate abuts against one side, opposite to the opening, of the inner wall of the cavity;

and the cavity is filled with a noise reduction material from the opening.

Optionally, an avoidance channel communicated with the outside is concavely arranged at one end, positioned at the opening, of the inner wall of each cavity in the direction far away from the adjacent outer plate;

the reinforcing part is convexly arranged on the outer plate close to the reinforcing rib on one side of the inner plate, and one end of the reinforcing rib extends into the cavity and abuts against one side, opposite to the opening, of the avoiding channel.

Optionally, the avoidance channels are provided with two opposite channels, and the reinforcing rib is transversely arranged between the two avoidance channels so as to be capable of spanning two ends of the opening of the cavity.

Optionally, two sides of each cavity in the thickness direction of the inner plate are open, and each open end of each cavity is provided with the avoidance channel;

correspondingly, the two outer plates are respectively provided with a plurality of reinforcing ribs facing the inner plate in a protruding mode.

Optionally, one of the outer plate and the inner plate is provided with a plug-in post, the other one is provided with a plug-in hole corresponding to the plug-in post, and the plug-in post is inserted into the plug-in hole.

Optionally, the insertion hole comprises a fixing hole and a blocking hole which are communicated with each other along a direction away from the insertion column, and the aperture of the blocking hole is larger than that of the fixing hole;

the outer plate is provided with a plurality of insertion holes, the insertion holes are formed in the outer wall of the outer plate, the outer plate is provided with a plurality of stop pieces, the stop pieces are arranged on the periphery of the insertion posts and are inclined outwards along the direction far away from the bottom wall of the insertion holes, the insertion posts are inserted between the fixing holes and the stop holes, the stop pieces are located in the stop holes, and one end far away from the insertion posts abuts against the step surface between the fixing holes and the stop holes to limit the separation of the outer plate and the inner plate.

Optionally, a plurality of the stop pieces are arranged at intervals along the circumferential direction of the insertion column; and/or the presence of a gas in the gas,

the included angle between the stop piece and the inserting column is alpha, and the alpha is more than or equal to 30 degrees and less than or equal to 45 degrees.

Optionally, the noise-reducing material is a foamed sound-insulating material.

Optionally, the foamed acoustic insulation material is provided as a polyurethane foam.

Optionally, the cross section of the cavity is arranged in a regular polygon.

Compared with the prior art, the three-layer plate structure provided by the utility model has the advantages that the inner plate is provided with the plurality of cavities, the outer plate is convexly provided with the reinforced parts at the positions corresponding to the cavities, and the reinforced parts can extend into the cavities from the openings of the cavities and abut against one side of the cavities opposite to the openings, so that the bearing capacity of the outer plate corresponding to the cavities is ensured; meanwhile, a noise reduction material is arranged in the cavity to improve the noise reduction performance of the three-layer plate structure. Therefore, the scheme can ensure the overall strength and the bearing performance of the three-layer plate structure, and also improve the noise reduction performance, so that a user can obtain better experience.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, and to implement the technical means in accordance with the content of the description, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is an exploded schematic view of an embodiment of a three-layer plate structure provided by the present invention;

FIG. 2 is a perspective view of the three-layer structure of FIG. 1;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic structural view of the inner panel of FIG. 1;

FIG. 5 is an enlarged schematic view at B in FIG. 4;

FIG. 6 is a schematic view of the outer plate of FIG. 1;

FIG. 7 is an enlarged schematic view at C of FIG. 6;

fig. 8 is a partial cross-sectional view of the inner panel of fig. 4 at a location corresponding to the receptacle.

Description of reference numerals:

100-three-layer plate structure, 1-inner plate, 1 a-cavity, 1 b-avoidance channel, 1 c-insertion hole, 1c 1-fixing hole, 1c 2-stop hole, 2-outer plate, 21-reinforcing part, 211-reinforcing rib, 22-insertion column, 23-stop piece and 3-noise reduction material.

Detailed Description

The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.

Referring to fig. 1 to 6, the three-layer plate structure 100 includes an inner plate 1 and two outer plates 2; the inner plate 1 is provided with a plurality of cavities 1a, and at least one side of each cavity 1a in the thickness direction of the inner plate 1 is open; the two outer plates 2 are respectively attached to two sides of the inner plate 1 in the thickness direction, a plurality of reinforcing parts 21 are convexly arranged towards the inner plate 1 on the outer plate 2 adjacent to the open side of the inner plate 1, the plurality of reinforcing parts 21 correspond to the plurality of cavities 1a one by one, each reinforcing part 21 can extend into the cavity 1a from the corresponding open side of the cavity 1a, and one end close to the inner plate 1 abuts against one side, opposite to the open side, of the inner wall of the cavity 1 a; wherein the cavity 1a is filled with a noise reduction material 3 from the opening.

The utility model provides a three-layer plate structure 100, set up a plurality of cavities 1a on the inner panel 1, and the protruding rib 21 that is equipped with in the position that planking 2 corresponds each cavity 1a, rib 21 can stretch into cavity 1a and butt in cavity 1a and the relative one side of opening from the opening of cavity 1a, thus guarantee the bearing capacity of planking 2 corresponding cavity 1a department; meanwhile, a noise reduction material 3 is provided in the cavity 1a to improve the noise reduction performance of the three-layer plate structure 100. Therefore, the scheme can ensure the overall strength and the bearing performance of the three-layer plate structure 100, and also improve the noise reduction performance, so that a user can obtain better experience. It should be understood that the two outer panels 2 and the inner panel 1 can be bonded together by glue, which is prior art and will not be described in detail. In addition, when the reinforcing portion 21 abuts against the inner wall of the cavity 1a and the open side, the adjacent side surfaces of the outer plate 2 and the inner plate 1 are attached to each other, so as to ensure stable connection and load-bearing performance. And in the drawing illustration of the present embodiment, the thickness direction of the inner panel 1 is shown by F1.

Further, in the present embodiment, an avoidance channel 1b communicating with the outside is concavely provided at one end of the inner wall of each cavity 1a, which is located at the opening, in the direction away from the adjacent outer plate 2; the reinforcing part 21 is a reinforcing rib 211 which is convexly arranged on one side of the outer plate 2 close to the inner plate 1, and one end of the reinforcing rib 211 extending into the cavity 1a is abutted against one side of the avoidance channel 1b opposite to the opening. In this scheme, with strengthening rib 211 butt on dodging the diapire of passageway 1b to the space of the cavity 1a that strengthening rib 211 occupy is makeed as far as possible reduce, makes can fill more noise reduction material 3 in the cavity 1a, in order to improve noise reduction performance.

Furthermore, in order to further improve the load-bearing performance of the outer plate 2 corresponding to the cavity 1a, in this embodiment, the two avoidance channels 1b are oppositely disposed, and the reinforcing rib 211 is transversely disposed between the two avoidance channels 1b so as to be capable of spanning two ends of the opening of the cavity 1 a. Thus, force transmission between the reinforcing rib 211 and the inner plate 1 is more stable, and the weight transmission performance of the three-layer plate structure 100 is improved.

Furthermore, two sides of each cavity 1a in the thickness direction of the inner plate 1 are open, and each open end of the cavity 1a is provided with the avoidance channel 1b; correspondingly, a plurality of the reinforcing ribs 211 are respectively arranged on the two outer plates 2 in a protruding manner towards the inner plate 1. Thus, when the three-layer plate structure 100 is assembled, the front side and the back side of the inner plate 1 do not need to be distinguished, so that the noise reduction material 3 is conveniently filled into the cavity 1a through the opening of the cavity 1a, and the assembly convenience is improved; at the same time, the space of the cavity 1a can be relatively further enlarged, that is, the noise reduction material 3 can be filled as much as possible to improve the noise reduction performance.

Further, in order to improve the connection strength between the outer plate 2 and the inner plate 1, please refer to fig. 7 and 8, in this embodiment, one of the outer plate 2 and the inner plate 1 is provided with an insertion post, and the other one is provided with an insertion hole corresponding to the insertion post, and the insertion post is inserted into the insertion hole. Thus, when the three-layer plate structure 100 is assembled, the adhesive can overflow between the periphery of the splicing column and the inner wall of the splicing hole, so that the connection between the outer plate 2 and the inner plate 1 is more stable. Specifically, in the present embodiment, the inserting columns 22 are convexly disposed on one side of the outer plate 2 close to the inner plate 1, and a plurality of inserting columns are disposed; the inserting holes 1c are formed on the inner plate 1, and a plurality of inserting holes are formed corresponding to the inserting columns 22.

Furthermore, the inserting hole 1c includes a fixing hole 1c1 and a stopping hole 1c2 communicated with each other along a direction away from the inserting column 22, and the aperture of the stopping hole 1c2 is larger than that of the fixing hole 1c 1; the periphery of the inserting column 22 is provided with a stopping piece 23, the stopping piece 23 is arranged in an outward inclined manner along a direction away from the bottom wall of the inserting hole 1c, the inserting column 22 is inserted between the fixing hole 1c1 and the stopping hole 1c2, the stopping piece 23 is located in the stopping hole 1c2, and one end, away from the inserting column 22, abuts against a step surface between the fixing hole 1c1 and the stopping hole 1c2, so that the separation of the outer plate 2 and the inner plate 1 is limited. As described above, in the present embodiment, when the inserting-connecting column 22 is inserted into the fixing hole 1c1 and the stopping hole 1c2, the stopping piece 23 abuts against one end of the fixing hole 1c1 close to the stopping hole 1c2 to limit the movement of the outer plate 2 in the direction away from the inner plate 1, so that the connection between the outer plate 2 and the inner plate 1 is firm, and the service life of the three-layer plate structure 100 is prolonged. It should be understood that, in the process of inserting the inserting column 22 into the stopping hole 1c2 from the fixing hole 1c1, the stopping piece 23 is first pressed and contracted in the fixing hole 1c1 and is expanded into the stopping hole 1c2 to limit the separation of the outer plate 2 from the inner plate 1.

Specifically, in this embodiment, the plurality of stop pieces 23 are provided, and the plurality of stop pieces 23 are arranged at intervals along the circumferential direction of the inserting column 22, so that the inserting column 22 is more stably limited in the inserting hole 1 c. In addition, the included angle between the stop piece 23 and the inserting column 22 is alpha, which satisfies that alpha is more than or equal to 30 degrees and less than or equal to 45 degrees, so that the anti-falling capacity of the stop piece 23 is improved while the occupied space of the inserting column 22 is reduced.

Further, in this embodiment, the noise reduction material 3 is a foam sound insulation material, so that the three-layer board assembly is facilitated, and the effect of reducing the overall mass can be achieved. Specifically, in the present embodiment, the foamed soundproof material is provided as polyurethane foam. In addition, the cross section of the cavity 1a is in a regular polygon arrangement, so that the noise reduction is more uniform.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. A three-ply panel structure, comprising:

the inner plate is provided with a plurality of cavities, and at least one side of each cavity in the thickness direction of the inner plate is provided with an opening; and the number of the first and second groups,

the two outer plates are respectively attached to two sides of the inner plate in the thickness direction, a plurality of reinforcing parts are convexly arranged towards the inner plate on the outer plate close to the open side of the inner plate, the plurality of reinforcing parts correspond to the plurality of cavities one by one, each reinforcing part can extend into the cavity from the corresponding open side of the cavity, and one end close to the inner plate abuts against one side, opposite to the open side, of the inner wall of the cavity;

and the cavity is filled with a noise reduction material from the opening.

2. The three-layer plate structure according to claim 1, wherein an avoidance channel communicated with the outside is concavely arranged at one end of the inner wall of each cavity, which is positioned at the opening, in the direction far away from the adjacent outer plate;

the reinforcing part is convexly arranged on the outer plate close to the reinforcing rib on one side of the inner plate, and one end of the reinforcing rib extends into the cavity and abuts against one side, opposite to the opening, of the avoiding channel.

3. The three-layer plate structure of claim 2, wherein two of said escape passages are oppositely disposed, and said reinforcing rib is transversely disposed between said two escape passages so as to straddle the open ends of said cavity.

4. The three-layer plate structure according to claim 2 or 3, wherein both sides of each cavity in the thickness direction of the inner plate are open, and the open ends of the cavities are respectively provided with the avoidance channel;

correspondingly, a plurality of reinforcing ribs are arranged on the two outer plates towards the inner plate in a protruding mode.

5. The three-layer plate structure of claim 1, wherein one of the outer plate and the inner plate is provided with a plug-in post, and the other one is provided with a plug-in hole corresponding to the plug-in post, and the plug-in post is inserted into the plug-in hole.

6. The triple-deck structure as claimed in claim 5, wherein the insertion hole comprises a fixing hole and a stop hole communicating with each other in a direction away from the insertion post, and the diameter of the stop hole is larger than that of the fixing hole;

the outer plate is provided with a blocking hole, the bottom wall of the insertion hole is provided with a blocking piece, the blocking piece is arranged in a direction away from the bottom wall of the insertion hole in an outward inclined mode, the insertion post is inserted between the fixing hole and the blocking hole, the blocking piece is located in the blocking hole, and one end, away from the insertion post, of the blocking piece abuts against a step surface between the fixing hole and the blocking hole to limit the outer plate and the inner plate to be separated.

7. The three-layer plate structure of claim 6, wherein a plurality of the stop pieces are arranged at intervals along the circumferential direction of the insertion column; and/or the presence of a gas in the gas,

the included angle between the stop piece and the insertion column is alpha, and alpha is more than or equal to 30 degrees and less than or equal to 45 degrees.

8. A three-ply panel structure in accordance with claim 1 wherein said noise-reducing material is a foamed sound-insulating material.

9. The three-panel structure of claim 8 wherein said foamed acoustic insulation is provided as polyurethane foam.

10. The three-layer plate structure of claim 1, wherein the cross-section of the cavity is in the shape of a regular polygon.

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