CN209624916U - Picture frame with negative poisson ratio effect - Google Patents
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Abstract
本实用新型公开了一种具有负泊松比效应的镜框,包括镜架与镜圈,所述镜架与镜圈为具有周期性横竖交替孔洞的穿孔结构;所述镜架与镜圈的孔洞结构的孔洞形状包括椭圆形、三角形和多边形;所述镜框内宽L应满足:120mm>L>139mm;镜框厚度d应满足2.5mm>d>3.5mm;所述镜圈高度H应满足:15mm>H>36mm。本实用新型利用该方法设计出的带有孔洞结构的材料,具有较大的负泊松比效应。该镜框受压情况下表现出负泊松比效应,较传统的镜框能承受更大的冲击力而不断裂,从而保护好镜片,更为轻质高强。
The utility model discloses a mirror frame with a negative Poisson's ratio effect, which comprises a mirror frame and a mirror ring. The mirror frame and the mirror ring are perforated structures with periodic horizontal and vertical alternate holes; the holes of the mirror frame and the mirror ring are The hole shape of the structure includes ellipse, triangle and polygon; the inner width L of the frame should meet: 120mm>L>139mm; the thickness d of the frame should meet 2.5mm>d>3.5mm; the height H of the mirror ring should meet: 15mm >H>36mm. The utility model utilizes the method to design a material with a hole structure, which has a relatively large negative Poisson's ratio effect. The frame exhibits a negative Poisson's ratio effect under pressure, and can withstand greater impact without breaking than the traditional frame, thereby protecting the lens and making it lighter and stronger.
Description
技术领域technical field
本实用新型涉及一种利用负泊松比孔洞结构来设计具有负泊松比效应的镜框,属于新材料和新结构领域。The utility model relates to a mirror frame with a negative Poisson's ratio effect designed by using a negative Poisson's ratio hole structure, which belongs to the field of new materials and new structures.
背景技术Background technique
负泊松比材料是具有受拉膨胀或者受压收缩性质的一种材料,是一类具有较高工程应用价值的功能性材料。负泊松比材料具有特殊的物理、机械和变形特性。例如,负泊松比效应可以提高材料的机械性能,包括剪切模量、断裂韧性、热冲击、强度和抗压痕性等。正是由于这些优异的性能,负泊松比材料在医疗设备、传感器、防护设备、航空航海及国防工程等领域具有越来越广阔的应用前景。三维负泊松比结构的制作可以结合3D打印技术。3D技术是利用计算机和立体打印技术对复杂的结构实现快速成型的高科技技术。它以数字模型为基础,所以精度高、机械化程度高、速度快。所以3D打印技术和三维负泊松比结构的制作相结合是一个未来的趋势,也会不断地成熟和发展。Negative Poisson's ratio material is a material that expands under tension or shrinks under compression, and is a class of functional materials with high engineering application value. Negative Poisson's ratio materials have special physical, mechanical and deformation properties. For example, negative Poisson's ratio effects can improve the mechanical properties of materials, including shear modulus, fracture toughness, thermal shock, strength, and indentation resistance, among others. Because of these excellent properties, negative Poisson's ratio materials have increasingly broad application prospects in the fields of medical equipment, sensors, protective equipment, aviation, navigation, and national defense engineering. The fabrication of three-dimensional negative Poisson's ratio structures can be combined with 3D printing technology. 3D technology is a high-tech technology that uses computer and three-dimensional printing technology to realize rapid prototyping of complex structures. It is based on digital models, so it has high precision, high degree of mechanization and high speed. Therefore, the combination of 3D printing technology and the production of three-dimensional negative Poisson's ratio structures is a future trend, and it will continue to mature and develop.
眼镜是人们经常使用到的物品之一,但在很多突发情况下,眼镜镜框容易折断,甚至镜片飞出破碎等情况。本实用新型将镜框做成负泊松比结构,利用负泊松比材料优良的抗冲击性能和吸能特性,使镜框能够更好抵抗冲击力,从而保护镜片。孔洞结构也让其更加轻便。本实用新型将负泊松比结构和3D打印制造工艺相结合,设计和制作具有负泊松比效应的镜框。Glasses are one of the items that people often use, but in many unexpected situations, the frame of the glasses is easy to break, and even the lenses fly out and break. In the utility model, the mirror frame is made into a negative Poisson's ratio structure, and the excellent impact resistance and energy absorption properties of the negative Poisson's ratio material are used to enable the mirror frame to better resist the impact force, thereby protecting the lens. The porous structure also makes it lighter. The utility model combines a negative Poisson's ratio structure with a 3D printing manufacturing process to design and manufacture a mirror frame with a negative Poisson's ratio effect.
实用新型内容Utility model content
本实用新型的目的是针对现有技术的不足,将负泊松比穿孔结构和和3D打印技术相结合,设计和制造了具实用性的负泊松比镜框,设计的镜框具有比传统镜框更好的抗冲击性、抗断裂性、轻便性。The purpose of this utility model is to aim at the deficiencies of the prior art, combine the negative Poisson's ratio perforated structure with 3D printing technology, design and manufacture a practical negative Poisson's ratio frame, the designed frame has more features than the traditional frame Good impact resistance, fracture resistance, lightness.
本实用新型采用的技术方案为:一种具有负泊松比效应的镜框,包括镜架与镜圈,所述镜架与镜圈为具有周期性横竖交替孔洞的穿孔结构;The technical scheme adopted by the utility model is: a mirror frame with a negative Poisson's ratio effect, including a mirror frame and a mirror ring, and the mirror frame and the mirror ring are perforated structures with periodic horizontal and vertical alternate holes;
所述镜架与镜圈的孔洞结构的孔洞形状包括椭圆形、三角形和多边形;The hole shapes of the hole structure of the mirror frame and the mirror ring include ellipse, triangle and polygon;
所述镜框内宽L应满足:120mm>L>139mm;镜框厚度d应满足2.5mm>d>3.5mm;The inner width L of the frame should satisfy: 120mm>L>139mm; the thickness d of the frame should satisfy 2.5mm>d>3.5mm;
所述镜圈高度H应满足:15mm>H>36mm。The mirror ring height H should satisfy: 15mm>H>36mm.
作为优选,所述孔洞结构为金属材料或板材。Preferably, the hole structure is a metal material or a plate.
上述一种具有负泊松比效应的镜框的设计方法,包括以下步骤:Above-mentioned a kind of design method of the picture frame with negative Poisson's ratio effect, comprises the following steps:
1)根据不同的人群来确定镜框的形状和尺寸,包括镜架内宽、镜圈高度和镜腿长度的形状和尺寸;1) Determine the shape and size of the frame according to different groups of people, including the shape and size of the inner width of the frame, the height of the mirror ring and the length of the temple;
2)设计镜框的具有周期性横竖交替的孔洞结构,并在满足3D打印要求的情况下尽量减少孔洞结构的间距;2) Design the frame with a periodic horizontal and vertical hole structure, and minimize the spacing of the hole structure while meeting the requirements of 3D printing;
3)采用3D打印技术制出的具有负泊松比效应的镜框,该镜框具有高抗冲击强度,符合实际使用的需求;3) A mirror frame with a negative Poisson's ratio effect produced by 3D printing technology, which has high impact resistance and meets the needs of actual use;
4)用此方法生成的镜框具有负泊松比效应,且具有更好的抗冲击性能以及轻质高强特点。4) The frame generated by this method has a negative Poisson's ratio effect, and has better impact resistance, light weight and high strength.
本实用新型其产生负泊松比效应的关键在于镜架和镜圈的负泊松比孔洞结构的设计。在满足3D打印制作要求的情况下,保证横竖交替的孔状结构足够小,使镜架和镜圈具有负泊松比效应,从而使得镜框整体也具有负泊松比效应。通过该方法能设计出的镜架和镜圈具有明显的负泊松比效应,同时能在大的应变范围内维持负泊松比性能。The key of the utility model to produce the negative Poisson's ratio effect lies in the design of the negative Poisson's ratio hole structure of the mirror frame and the mirror ring. In the case of meeting the production requirements of 3D printing, ensure that the horizontal and vertical alternate hole structures are small enough, so that the frame and mirror ring have a negative Poisson's ratio effect, so that the entire mirror frame also has a negative Poisson's ratio effect. The spectacle frame and mirror ring that can be designed by this method have obvious negative Poisson's ratio effect, and can maintain the negative Poisson's ratio performance in a large strain range at the same time.
有益效果:本实用新型利用该方法设计出的带有孔洞结构的材料,具有较大的负泊松比效应。该镜框受压情况下表现出负泊松比效应,较传统的镜框能承受更大的冲击力而不断裂,从而保护好镜片,更为轻质高强。Beneficial effects: the utility model utilizes the method to design the material with a hole structure, which has a relatively large negative Poisson's ratio effect. The frame exhibits a negative Poisson's ratio effect under pressure, and can withstand greater impact without breaking than the traditional frame, thereby protecting the lens and making it lighter and stronger.
附图说明Description of drawings
图1为具有负泊松比效应镜框的整体示意图;Fig. 1 is the overall schematic diagram with negative Poisson's ratio effect mirror frame;
图2为镜框的局部放大图。Figure 2 is a partial enlarged view of the mirror frame.
具体实施方式Detailed ways
下面结合具体实施例和附图对本实用新型做进一步描述:Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described:
如图1和2所示,一种具有负泊松比效应的镜框,包括镜架1与镜圈2,所述镜架1与镜圈2为具有周期性横竖交替孔洞的穿孔结构;As shown in Figures 1 and 2, a mirror frame with a negative Poisson's ratio effect includes a mirror frame 1 and a mirror ring 2, and the mirror frame 1 and the mirror ring 2 are perforated structures with periodic horizontal and vertical holes;
所述镜架1与镜圈2的孔洞结构的孔洞形状包括椭圆形、三角形和多边形;所述孔洞结构为金属材料或板材;The hole shape of the hole structure of the mirror frame 1 and the mirror ring 2 includes ellipse, triangle and polygon; the hole structure is a metal material or a plate;
所述镜框内宽L应满足:120mm>L>139mm;镜框厚度d视镜片厚度而定,一般为:2.5mm>d>3.5mm;The inner width L of the frame should satisfy: 120mm>L>139mm; the thickness d of the frame depends on the thickness of the lens, generally: 2.5mm>d>3.5mm;
所述镜圈2高度H应满足:15mm>H>36mm。The height H of the mirror ring 2 should satisfy: 15mm>H>36mm.
上述一种具有负泊松比效应的镜框的设计方法,包括以下步骤:Above-mentioned a kind of design method of the picture frame with negative Poisson's ratio effect, comprises the following steps:
1)根据不同的人群来确定镜框的形状和尺寸,包括镜架内宽、镜圈高度和镜腿长度的形状和尺寸;1) Determine the shape and size of the frame according to different groups of people, including the shape and size of the inner width of the frame, the height of the mirror ring and the length of the temple;
2)设计镜框的具有周期性横竖交替的孔洞结构,并在满足3D打印要求的情况下尽量减少孔洞结构的间距;2) Design the frame with a periodic horizontal and vertical hole structure, and minimize the spacing of the hole structure while meeting the requirements of 3D printing;
3)采用3D打印技术制出的具有负泊松比效应的镜框,该镜框具有高抗冲击强度,符合实际使用的需求;3) A mirror frame with a negative Poisson's ratio effect produced by 3D printing technology, which has high impact resistance and meets the needs of actual use;
4)用此方法生成的镜框具有负泊松比效应,且具有更好的抗冲击性能以及轻质高强特点。4) The frame generated by this method has a negative Poisson's ratio effect, and has better impact resistance, light weight and high strength.
应当指出,对于本技术领域的普通技术人员来说,在不脱离本实用新型原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本实用新型的保护范围。本事例中未明确的各组成部分均可用现有技术加以实现。It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model. All components that are not specified in this example can be realized with existing technologies.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110133866A (en) * | 2019-05-10 | 2019-08-16 | 南京工业大学 | Mirror frame with negative Poisson ratio effect and design method thereof |
CN111010638A (en) * | 2019-12-06 | 2020-04-14 | 南京工业大学 | A kind of ear cap with negative Poisson's ratio effect and design method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110133866A (en) * | 2019-05-10 | 2019-08-16 | 南京工业大学 | Mirror frame with negative Poisson ratio effect and design method thereof |
CN111010638A (en) * | 2019-12-06 | 2020-04-14 | 南京工业大学 | A kind of ear cap with negative Poisson's ratio effect and design method thereof |
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