阅读说明：本技术 耐压透气缓冲构件 (Pressure-resistant breathable buffer component ) 是由 王文斌 林恩君 于 2020-05-19 设计创作，主要内容包括：本发明涉及一种耐压透气缓冲构件,由3D打印设备一体打印成型,所述的构件包括镂空部,所述的镂空部由多个结构相同的空心十四面体单元排布而成,多个所述的空心十四面体单元沿彼此垂直的三个方向重复；各个所述的空心十四面体单元由6个正方形面和8个六边形面构成,各个所述的正方形面和各个所述的六边形面上均具有开孔；每个位于中部的所述空心十四面体单元外围邻接有六个外部的所述空心十四面体,且相邻两个所述的空心十面体单元在所述正方形面处叠合。本案的缓冲构件,其在耐压、透气、缓冲性能上均有很大的提高。(The invention relates to a pressure-resistant breathable buffer component which is integrally printed and formed by 3D printing equipment, and comprises a hollow part, wherein the hollow part is formed by arranging a plurality of hollow tetradecahedron units with the same structure, and the plurality of hollow tetradecahedron units are repeated along three directions which are vertical to each other; each hollow fourteen-surface body unit consists of 6 square surfaces and 8 hexagonal surfaces, and each square surface and each hexagonal surface are provided with openings; the periphery of each hollow tetradecahedron unit positioned in the middle is adjacent to six external hollow tetradecahedrons, and two adjacent hollow decahedron units are overlapped at the square surface. The buffer member has greatly improved pressure resistance, ventilation and buffer performance.)

1. A pressure-resistant breathable buffer component is integrally printed and formed by 3D printing equipment and is characterized by comprising a hollow part, wherein the hollow part is formed by arranging a plurality of hollow fourteen-surface-body units with the same structure, and the plurality of hollow fourteen-surface-body units are repeated along three directions which are vertical to each other; each hollow fourteen-surface body unit consists of 6 square surfaces and 8 hexagonal surfaces, and each square surface and each hexagonal surface are provided with openings; the periphery of each hollow tetradecahedron unit positioned in the middle is adjacent to six external hollow tetradecahedrons, and two adjacent hollow decahedron units are overlapped at the square surface.

2. The pressure-resistant breathable cushioning member according to claim 1, wherein each hollow tetradecahedron unit is castrated at 96.66 mm-1510.3 mm in volume.

3. The pressure-resistant breathable cushioning member according to claim 2, wherein each of said hollow tetradecahedron units is labor-intensive at 447.5mm in volume.

4. A pressure-resistant breathable cushioning member according to claim 2, wherein each of said hollow tetradecahedron has a wall thickness of 1mm to 2 mm.

5. A pressure-resistant breathable cushioning member according to claim 2, wherein each of said hollow tetradecahedrons has a wall thickness of 1.25 mm.

6. A pressure-resistant breathable cushioning member according to claim 1, wherein said open area on said square face is 1/4 times the area of said square face.

7. A pressure-resistant breathable cushioning member according to claim 1, wherein said openings in said square face are square openings.

8. A pressure-resistant breathable cushioning member according to claim 1, characterized in that said hexagonal surface has an open area 1/16 the area of said hexagonal surface.

9. A pressure resistant breathable cushioning member according to claim 1, characterized in that said openings in said hexagonal face are triangular shaped openings.

10. The pressure-resistant breathable cushioning member according to claim 1, characterized in that it is integrally printed out of a photosensitive resin material by a 3D printing apparatus.

11. A pressure resistant breathable cushioning member according to claim 10, wherein said photosensitive resin material is a polyurethane elastomer.

12. A pressure-resistant breathable cushioning member according to claim 1, further comprising a solid portion surrounding at least a portion of said hollowed-out portion.

Technical Field

The invention relates to the technical field of 3D printing, in particular to a pressure-resistant breathable buffer member manufactured by 3D printing equipment.

Background

At present, products or parts in various civil fields have performance requirements in the aspects of compression resistance and shock absorption, such as a cushion on a high-end bicycle, a sole of high-comfort sports shoes and the like; the saddle on the bicycle is the main body support and the important position of exerting force of the cyclist when riding the bicycle, therefore, the quality of the saddle is very important for the physical and mental health of the cyclist. The sole of the sports shoe is the most important support for supporting the shoe on the ground, and the performance of the components is also very important for the physical and mental health of the shoe.

Disclosure of Invention

The invention aims to provide a pressure-resistant breathable buffer member which has pressure resistance, ventilation and buffer performance.

In order to achieve the purpose, the invention adopts the following technical scheme: a pressure-resistant breathable buffer component is integrally printed and formed by 3D printing equipment and comprises a hollow part, wherein the hollow part is formed by arranging a plurality of hollow fourteen-surface-body units with the same structure, and the plurality of hollow fourteen-surface-body units are repeated along three directions which are vertical to each other; each hollow fourteen-surface body unit consists of 6 square surfaces and 8 hexagonal surfaces, and each square surface and each hexagonal surface are provided with openings; the periphery of each hollow tetradecahedron unit positioned in the middle is adjacent to six external hollow tetradecahedrons, and two adjacent hollow decahedron units are overlapped at the square surface.

In the above technical scheme, preferably, the volume of each hollow tetradecahedron is obtained by carrying out thin-wall transformation at 96.66 mm-1510.3 mm. Further preferably, each of the hollow tetradecahedrons is flash-milled at 447.5 mm.

In the above technical solution, preferably, the wall thickness of each hollow tetradecahedron is 1mm to 2 mm. Further preferably, each of the hollow tetradecahedrons has a wall thickness of 1.25 mm.

In the above technical solution, preferably, an opening area on the square surface is 1/4 of the square surface area.

In the above technical solution, preferably, the opening on the square surface is a square hole.

In the above-described aspect, preferably, an opening area on the hexagonal surface is 1/16 times an area of the hexagonal surface.

In the above technical solution, preferably, the opening on the hexagonal surface is a triangular hole.

In the above technical solution, preferably, the pressure-resistant breathable buffer member is integrally printed and formed by a photosensitive resin material through a 3D printing device. Further preferably, the photosensitive resin material is a polyurethane elastomer.

In the above technical solution, preferably, the member further includes a solid portion, and the solid portion surrounds at least a part of the hollow portion.

The cushioning member integrally printed and formed by the 3D printing apparatus of the present invention has greatly improved pressure resistance, air permeability and cushioning performance, and will be described in detail with reference to the following embodiments.

Drawings

FIG. 1 is a schematic structural view of a pressure-resistant air-permeable cushioning member according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a hollow portion formed by a plurality of hollow tetradecahedron units according to an embodiment of the present invention.

FIG. 3 is a first schematic structural view of a single hollow tetradecahedron unit provided according to an embodiment of the present invention.

FIG. 4 is a schematic structural diagram II of a single hollow tetradecahedron unit provided according to an embodiment of the present invention.

FIG. 5 is a schematic diagram III of the structure of a single hollow tetradecahedron unit provided according to an embodiment of the present invention.

FIG. 6 is a fourth schematic structural view of a single hollow tetradecahedron unit provided according to an embodiment of the present invention.

100, a component; 1. a hollow-out section; 2. a solid portion; 10. a hollow tetradecahedron unit; 11. a square surface; 12. hexagonal surface; 121. a long side; 122. a short side; 13. opening a square hole; 14. and (5) forming a triangular hole.

Detailed Description

The present invention is further illustrated by the following specific embodiments, which are specific embodiments of the present invention.

As shown in fig. 1, a pressure-resistant air-permeable cushioning member 100 is a bicycle seat cushion, which is integrally printed and formed by a 3D printing apparatus 100. The member 100 comprises 3 hollow-out portions 1 and a solid portion 2, the solid portion 2 surrounding the periphery or part of the periphery of the hollow-out portions 2.

As shown in fig. 2, the hollow portion 1 is formed by arranging a plurality of hollow tetradecahedron units 10 with the same structure, and when the hollow portion 1 is manufactured, the 3D printing apparatuses sequentially complete printing of each unit 10. The plurality of hollow tetradecahedron units 10 are repeated in three directions perpendicular to each other, and adjacent two hollow tetradecahedron units 10 are stacked together through one of the faces.

As shown in fig. 3-6 for a single hollow tetradecahedron unit 10, each hollow tetradecahedron unit 10 is composed of 6 square faces 11 and 8 hexagonal faces 12. Of the 6 square faces 11, each square face 11 has a square opening 13 in the middle. Each hexagonal surface 12 has 3 long sides 121 and 3 short sides 122, and the 3 long sides 121 are the same sides with the adjacent square surface 11, that is, the side length of the square surface 11 is the length of the long side 121. In this example, the ratio of the length of the long side 121 to the short side 122 is 2:1, and the middle of each hexagonal surface 12 has a triangular opening 14. In the same hollow tetradecahedron unit 10, no two adjacent square faces 11 exist, every 1 square face 11 is externally surrounded by 4 hexagonal faces 12, every 1 hexagonal face 12 is externally surrounded by 3 square faces 11 and 3 hexagonal faces 12, the intersection edge of the adjacent square faces 11 and the hexagonal faces 12 is a long side 121, and the intersection edge of the adjacent two hexagonal faces 12 is a short side 122.

In this example, six outer hollow tetradecahedrons 10 are adjacent to the periphery of each of the central hollow tetradecahedron units 10. Continuing with FIG. 2, two adjacent hollow decahedral units 10 are each stacked together at a square face 11.

In order to meet the 3D printing requirement and the pressure-resistant breathable buffer, the pressure-resistant breathable buffer component 100 is made of photosensitive resin during printing. The volume of a single hollow tetradecahedral unit 10 can be set to 96.66 mm-1510.3 mm, and the wall thickness of the hollow tetradecahedral unit 10 can be set to 1mm-2 mm. In the square face 11, the area of the square opening 13 is 1/4 of the area of the square face 11. In the hexagonal face 12, the area of the triangular opening 14 is also 1/16 of the area of the hexagonal face 12.

Manufacturing a pressure-resistant breathable buffer member with the following specific dimensions: the volume of a single hollow tetradecahedron unit 10 is 447.5mm for cultivation, the wall thickness of the hollow tetradecahedron unit 10 is 1.25mm, the area of the square opening 13 is 1/4 of the area of the square face 11, the area of the triangular opening 14 is 1/16 of the area of the hexagonal face 12, and the wall thickness of the hollow tetradecahedron unit 10 is 1.25 mm. Adopt the polyurethane elastomer to print the material and utilize 3D printing apparatus to print withstand voltage ventilative buffer member of above-mentioned size, print and carry out the performance test such as withstand voltage, buffering to this component after accomplishing, the test result is shown in the following table:

test items	Test results	Test standard
			Resilience test/%)	35	GB/T1681-2009
Compression test/%	8	HG/T2876-2009

It is thus understood that the member of the present example is simple to manufacture, excellent in pressure resistance, air permeability, and cushioning properties, and has a wide application prospect.

While the disclosure has been described with reference to what are presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, it should be understood that the foregoing embodiments are exemplary and are not intended to limit the disclosure in any way.