CN219007305U

CN219007305U - Nested frameless sandwich panel

Info

Publication number: CN219007305U
Application number: CN202222270951.3U
Authority: CN
Inventors: 姜夏旺
Original assignee: Hunan University of Technology
Current assignee: Hunan University of Technology
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-05-12
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses a nested frameless sandwich panel, which comprises an upper panel, a lower panel and a sandwich layer adhered between the upper panel and the lower panel, wherein the sandwich layer consists of a plurality of round tubes, the upper opening end and the lower opening end of each round tube are provided with a plurality of grooves, the positions and the depths of the grooves are determined by the nesting degree of the round tubes, the sandwich layer is formed by inserting and nesting a plurality of independent round tubes through the grooves on the round tubes, the connection between the round tubes is free from glue application, a stable integral structure is formed by completely relying on the embedding and the inserting, and the uniformly distributed round tube structure is subjected to the same tension. Furthermore, the utility model is made of recyclable paper materials, has good compression bearing capacity and bending resistance, can greatly lighten the weight of furniture, and meets the requirements of modern furniture industry on greenness and light weight.

Description

Nested frameless sandwich panel

Technical Field

The utility model mainly relates to the technical field of paper-based sandwich panel forming, in particular to a nested frameless sandwich panel and a forming method thereof.

Background

Currently, in order to meet the requirements of modern furniture industry for green, light weight and multifunction, more and more light weight and high strength emerging materials are applied to furniture design. Among such lightweight, green materials, furniture made of paper as a base material is attracting attention. The paper furniture can achieve the same bearing capacity as the traditional furniture through structural design, and the weight of the paper furniture is only 20% -30% of that of the traditional furniture; and the paper can be recycled for 15-17 times. The paper furniture has the characteristics of energy conservation, environmental protection, less material consumption, light weight, good flexibility, low cost and the like.

With the development of material science and furniture industry, the sandwich panel is used for replacing traditional wooden furniture materials, and the sandwich panel is made of novel paper materials, has the characteristics of light weight, high production efficiency, energy conservation and the like, and has higher specific strength, specific rigidity and designability compared with a homogeneous solid plate. The sandwich panel consists of three parts, namely an upper panel, a lower panel and a middle core layer, and in paper furniture, the existing sandwich panel, such as a corrugated sandwich panel, has a corrugated core structure which has a certain improvement compared with the strength of a single paperboard and has better buffering performance, but still can not reach the use strength of the clamp panel, and is mainly used for packaging materials; the honeycomb sandwich panel is limited by the unit area, aperture and the like, and the strength of the honeycomb sandwich panel is reduced along with the lifting of the height, so that the honeycomb sandwich panel does not meet the use requirement of part of structures in furniture. In summary, sandwich panels made of corrugated boards, honeycomb boards and other materials have limitations, have low bearing strength, and are difficult to manufacture large-scale bearing furniture, so that the application range and the use scene of paper furniture are limited.

The utility model discloses a high-strength corrugated board with a publication number of CN214983951U, which comprises a first corrugated board outer layer and a second corrugated board outer layer, and further comprises a corrugated board core layer assembly, wherein the first corrugated board core layer and the second corrugated board core layer are attached and fixed, the first corrugated board core layer and the second corrugated board core layer are all wavy, and the first corrugated board core layer and the second corrugated board core layer are bonded and fixed through a connecting adhesive layer.

An aerogel honeycomb sandwich panel having a publication number CN206328993U, said sandwich panel comprising upper and lower two-layer panels and a middle aerogel honeycomb core; the aerogel honeycomb core body has the structure that: the aerogel sheet layer completely covers the surface of the honeycomb core; the honeycomb sandwich panel is limited by the production unit area, aperture and the like, and the strength of the honeycomb sandwich panel is reduced along with the elevation of the honeycomb sandwich panel, so that the honeycomb sandwich panel has certain limitation and is difficult to manufacture large-scale bearing furniture.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the nested frameless sandwich panel which is used for replacing the traditional wood-based material, thereby realizing the development of greenness, light weight and reduction in the modern furniture industry.

The utility model is as follows:

in order to solve the technical problems, the nested frameless sandwich panel comprises an upper panel, a lower panel and a sandwich layer adhered between the upper panel and the lower panel, wherein the sandwich layer consists of a plurality of parallel round tubes, the axial direction of a pipeline of each round tube is perpendicular to the plate surfaces of the upper panel and the lower panel, a plurality of grooves are formed in the upper opening end and the lower opening end of each round tube, the positions and the depths of the grooves are determined by the nesting degree of the round tubes, and the sandwich layer is formed by inserting and nesting a plurality of independent round tubes through grooves in the round tubes.

Further, the upper layer panel, the lower layer panel and the sandwich layer are made of paper materials.

Furthermore, the paper material is recyclable, and the nested frameless sandwich board manufactured by the material has good compression bearing capacity and bending resistance, compared with the existing solid template structure, the weight of furniture can be greatly reduced, the requirements of the modern furniture industry on greenness, light weight and multifunction are met, and the nested frameless sandwich board has the advantages of energy conservation, environmental protection, simple manufacturing process, light weight and low cost.

Further, the outer surfaces of the upper panel, the lower panel and the sandwich layer are adhered or coated with waterproof materials, and the waterproof materials are coated on the outer surfaces of the upper panel, the lower panel and the sandwich layer, so that the hydrophobic function of the utility model is realized.

Furthermore, the waterproof material is a degradable bio-based material, the degradable bio-based material is an environment-friendly full-biodegradable material, and the material is favorable for environmental protection.

Further, the specifications of the height, thickness and diameter of the circular tubes are the same, the height of the circular tubes is 10-25 mm, the thickness of the circular tubes, namely the wall thickness, is 1.7-6 mm, the diameter of the circular tubes, namely the aperture, is 20-50 mm, and the circular tubes with the same specifications are adopted to ensure that the tension applied to all parts of the uniformly distributed circular tube structure is basically the same, so that the problem of local collapse caused by weak bearing force of a certain structure is avoided.

Further, the depth of the groove on the circular tube is half of the height of the circular tube, when the circular tube and the circular tube are spliced and nested through the grooves, the two grooves at the lower opening end of the circular tube are aligned with the two grooves at the upper opening end of the other circular tube to be spliced and nested, the two grooves at the upper opening end of the circular tube are aligned with the two grooves at the lower opening end of the other circular tube to be spliced and nested, the other circular tubes are spliced and nested in sequence in the mode, finally the spliced and nested sandwich layer is formed, and the height of the formed sandwich layer is the height of the circular tube.

Further, the single round tube can be inserted into other four round tubes through the grooves, and two grooves are needed for inserting one round tube into the single round tube.

Further, the spacing between the two grooves of the inserted circular tube is the same, so that the structure of the whole circular tube is uniformly distributed after the inserted circular tube is ensured.

Further, the slotting takes the diameter of the round pipe as a symmetry axis, the slotting is distributed on the upper part and the lower part of the round pipe at the opposite ends, the slotting position of the round pipe determines the splicing mode of the round pipe to be staggered and spliced on the upper part and the lower part, the splicing method ensures that the sandwich layer formed by splicing and nesting a plurality of independent round pipes through the slotting on the round pipe is firmer, the gluing can be avoided, and a stable integral structure is formed by completely relying on the nesting and splicing.

Compared with the prior art, the utility model has the beneficial effects that: the sandwich layer is formed by inserting and nesting a plurality of independent round tubes through grooves on the round tubes, the round tubes are connected with the round tubes without using excessive glue for pasting, glue application is avoided, a stable integral structure is formed by completely relying on the nested insertion, and the uniformly distributed round tube structures are basically the same in tension, so that the problem of local collapse caused by weak bearing force of a certain structure is avoided. Furthermore, the utility model is made of recyclable paper materials, has good compression bearing capacity and bending resistance, can greatly reduce the weight of furniture compared with the prior solid template structure, meets the requirements of modern furniture industry on greenness, light weight and multifunction, and has the advantages of energy conservation, environmental protection, simple manufacturing process, light weight and low cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall schematic view of a nested frameless sandwich panel;

FIG. 2 is a schematic view of a round tube;

FIG. 3 is a tube connection intent;

FIG. 4 is a schematic view of a sandwich and underlying panel.

Wherein, each reference sign in the figure: 1. an upper panel; 2. a lower panel; 3. a round tube; 4. and (5) grooving.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. It will be further understood that when an element is referred to as being "coupled to" another element, it can be directly or indirectly coupled to the other element. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

The utility model is further described in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 to 4, the nested frameless sandwich panel provided by the utility model comprises an upper panel 1, a lower panel 2 and a sandwich layer adhered between the upper panel 1 and the lower panel 2, wherein the sandwich layer consists of a plurality of parallel round tubes 3, the pipeline axial direction of the round tubes 3 is perpendicular to the plate surfaces of the upper panel 1 and the lower panel 2, a plurality of grooves 4 are formed in the upper opening end and the lower opening end of the round tubes 3, the position and the depth of the grooves 4 are determined by the nesting degree of the round tubes 3, and the sandwich layer is formed by splicing and nesting a plurality of independent round tubes 3 through the grooves 4 on the round tubes 3; four circular tubes 3 can be inserted into each circular tube 3, two grooves 4 are needed for each circular tube 3, glue is not needed for pasting the circular tubes 3 and the circular tubes 3, glue application is avoided, a stable integral structure is formed by nesting and inserting completely, and the structures of the uniformly distributed circular tubes 3 are basically the same in tension, so that the problem of local collapse caused by weak bearing force of a certain structure is solved, and in a word, the utility model has high strength and good buffering performance and can be used for manufacturing large-scale bearing furniture.

As shown in fig. 2 and 3, the position and the height of the slot 4 on the circular tube 3 are determined by the nesting degree of the circular tube 3, the depth of the slot 4 is half of the height of the circular tube 3, when the circular tube 3 and the circular tube 3 are spliced and nested through the slot 4, the two slots 4 at the lower opening end of the circular tube 3 are aligned with the two slots 4 at the upper opening end of the other circular tube 3 to splice and nest, the two slots 4 at the upper opening end of the circular tube 3 are aligned with the two slots 4 at the lower opening end of the other circular tube 3 to splice and nest, the other circular tubes 3 are spliced and nest in sequence in the manner, finally the spliced and nest forms a sandwich layer, and the height of the formed sandwich layer is the height of the circular tube 3.

Further, the specifications of the height, thickness and diameter of the circular tubes 3 are the same, the height of the circular tubes 3 is 10-25 mm, the thickness of the circular tubes 3, namely the wall thickness is 1.7-6 mm, the diameter of the circular tubes 3, namely the aperture is 20-50 mm, the circular tubes 3 with the same specification are adopted, and the uniform distribution of the circular tubes 3 is ensured to have basically the same tension at all parts of the structure, so that the problem of local collapse caused by weak bearing force of a certain structure is avoided.

Further, as shown in fig. 2 and 3, the diameter of the circular tube 3 is taken as a symmetry axis, opposite ends of the grooves 4 are distributed at the upper and lower open ends of the circular tube 3, the position of the grooves 4 on the circular tube 3 determines that the inserting mode of the circular tube is staggered inserting of the upper and lower open ends, the inserting method ensures that the sandwich layer formed by inserting and nesting a plurality of independent circular tubes 3 through the grooves 4 on the circular tube 3 is firmer, glue application can be avoided, and a stable integral structure is formed by completely relying on embedding insertion.

Example 2

As shown in fig. 1, the upper panel 1, the lower panel 2, and the sandwich layer are made of paper materials. The paper material is recyclable, and the nested frameless sandwich board manufactured by the material has good compression bearing capacity and bending resistance, compared with the prior solid template structure, the weight of furniture can be greatly reduced, the requirements of the modern furniture industry on greenness, light weight and multifunctionality are met, and the nested frameless sandwich board has the advantages of energy conservation, environmental protection, simple manufacturing process, light weight and low cost.

Further, the outer surfaces of the upper panel 1, the lower panel 2 and the sandwich layer are adhered or coated with a waterproof material, and the waterproof material covers the outer surfaces of the upper panel 1, the lower panel 2 and the sandwich layer, thereby realizing the hydrophobic function of the present utility model.

Furthermore, the waterproof material is a degradable bio-based material, the degradable bio-based material is an environment-friendly full-biodegradable material, and the adoption of the material is beneficial to environmental protection.

Example 3

Further, the sandwich layer is formed by round tubes 3, namely round paper tubes, and when the sandwich layer is prepared, the round paper tubes need to be cut and grooved according to the height; firstly, cutting a round paper tube into a plurality of unit round tubes 3 with the same height along the longitudinal direction of the paper tube by taking any one end of the round paper tube as a reference end and taking the reference end as a starting point; secondly, grooving the upper and lower ends of the unit circular tube 3 respectively, wherein each group comprises 4 groups of grooves, each group comprises 2 grooves, the diameter of the unit circular tube 3 is taken as a symmetry axis, and grooving positions of the opposite ends are respectively an upper opening end and a lower opening end of the circular tube 3, as shown in fig. 4; finally, a plurality of round tubes 3 are sequentially stacked and spliced to form a whole, so that a round paper tube core layer is obtained, the upper end and the lower end of the round paper tube core layer are respectively glued and adhered between the upper panel 1 and the lower panel 2, and the nested frameless sandwich panel is formed.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a nested frameless battenboard, its characterized in that includes upper panel, lower floor's panel and the sandwich layer of adhesion between upper panel and the lower floor's panel, the sandwich layer comprises a plurality of pipes side by side, and the pipeline axial of pipe is perpendicular with the face of upper and lower floor's panel, the upper opening end and the lower open end of pipe all are equipped with a plurality of flutings, grooved position and degree of depth are decided by the nested degree of pipe, the sandwich layer is pegged graft, nested by the fluting on a plurality of independent pipe through the pipe and is formed.

2. The nested frameless sandwich panel of claim 1, wherein the upper panel, lower panel, and sandwich layer are made of paper material.

3. The nested frameless sandwich panel of claim 2, wherein the paper material is a recyclable material.

4. The nested frameless sandwich panel of claim 1, wherein the upper panel, the lower panel, and the outer surfaces of the sandwich panel are bonded or coated with a water resistant material.

5. The nested frameless sandwich panel of claim 4, wherein the water resistant material is a degradable bio-based material.

6. The nested frameless sandwich panel of claim 1, wherein the plurality of round tubes are of the same gauge in height, thickness, and diameter.

7. The nested frameless sandwich panel of claim 1, wherein the depth of the slot in the tube is one half the height of the tube.

8. The nested frameless sandwich panel of claim 1, wherein the round tube is insertable into the other four round tubes through the slot, and wherein inserting one round tube into the round tube requires two slots.

9. The nested frameless sandwich panel of claim 8, wherein the spacing between the two slots of the tube for plugging is the same.

10. The nested frameless sandwich panel of claim 1, wherein the slots are distributed at the upper and lower open ends of the tube at opposite ends thereof with the diameter of the tube as the axis of symmetry.