WO2020172995A1 - 一种金属吸管 - Google Patents

一种金属吸管 Download PDF

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Publication number
WO2020172995A1
WO2020172995A1 PCT/CN2019/085636 CN2019085636W WO2020172995A1 WO 2020172995 A1 WO2020172995 A1 WO 2020172995A1 CN 2019085636 W CN2019085636 W CN 2019085636W WO 2020172995 A1 WO2020172995 A1 WO 2020172995A1
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WO
WIPO (PCT)
Prior art keywords
metal foil
tubular body
metal
long side
short side
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PCT/CN2019/085636
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English (en)
French (fr)
Inventor
杨殿坤
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广州市万臻铝箔制品有限公司
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Publication of WO2020172995A1 publication Critical patent/WO2020172995A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/24—Inserts or accessories added or incorporated during filling of containers
    • B65D77/28—Cards, coupons, or drinking straws

Definitions

  • the utility model relates to the field of daily necessities, in particular to a metal straw.
  • Drinking straws are a tool commonly used by people. Both packaged beverages and hand-made beverages on site are extremely popular. Therefore, the number of straws consumed daily by the global population is very large. At present, most of the straws are still mainly made of plastic. Although the volume of each plastic straw is not large, the cumulative number of daily use is quite astonishing, also because the volume of plastic straws is not large, even after recycling The recycling rate and value of plastics are not high, and they are not easy to handle. Therefore, a huge amount of straw wastes are generated every day in the world, even hundreds of billions of straws a year. This large amount of plastic wastes will cause harm to the environment and biology. , It will also cause a lot of marine garbage and consume a lot of disposal costs.
  • plastic straws also have the problem of plasticizer residues or plasticizer precipitation from hot food and drink, which is a hazard to human health.
  • reusable stainless steel straws or glass straws have appeared on the market.
  • these straws are costly and need to be cleaned and disinfected before they can be reused, and they are inconvenient to carry and popular. Low rate and no commercial economic advantage, it cannot replace traditional plastic straws.
  • a paper straw is disclosed. Although the straw reduces pollution, it needs to be tightly connected because of its overlapping parts.
  • Adhesive bonding adopts hot melt or bonding, which increases the complexity of the process, and the production or burning of the waterproof layer required for hot melt or the adhesive required for bonding will pollute the environment and be harmful to human health.
  • the embodiment of the utility model provides a metal straw, which includes a tubular body wound by metal foil.
  • the tubular body is provided with an inlet, an outlet and a circulation cavity, and the circulation cavity communicates with the inlet and the outlet. .
  • At least the outlet end of the tubular body is provided with an anti-cut part.
  • the metal foil is arranged in a strip shape, the metal foil is rolled up in a spiral shape, and the winding direction thereof forms a first angle with the length direction of the metal foil; or,
  • the metal foil is arranged in a strip shape, the metal foil is rolled up in a spiral shape, and the winding direction thereof forms a first angle with the length direction of the metal foil, and the size of the first angle is 30- Between 60°.
  • the elongated metal foil includes a first long side, a second long side, a third short side, and a fourth short side, the first long side and the second long side are parallel, the The angle formed by at least one of the third short side and the fourth short side and the first long side is equal to the first included angle.
  • the angle formed by the first long side and the third short side is between 30-60°; or,
  • the first long side, the second long side, the third short side and the fourth short side form a parallelogram, and the acute angle of the parallelogram is between 30-60°.
  • the tubular body is arranged in a bent shape.
  • the metal foil is arranged in a strip shape, and the width of the metal foil is between 1-10 cm, or;
  • the width of the overlapping portion of the metal foil is between 1/3-1 of its own width.
  • one side of the metal foil close to one end of the tubular body is located on the same plane.
  • the cut-preventing part is a folded edge formed by turning the outlet end of the tubular body in the direction of the circulation cavity; or,
  • the cut-proof portion is a folded edge formed by turning the outlet end of the tubular body in a direction away from the circulation cavity; or,
  • the cut prevention part is a suction head fixed on the outlet end of the tubular body.
  • the metal foil is copper foil or aluminum foil.
  • the utility model forms a straw by winding the metal foil, and the overlapped part of the metal foil does not need to be tightly connected with other materials, which is safe and environmentally friendly, and has simple process.
  • Figure 1 is a front view of a metal straw according to a preferred embodiment of the present invention.
  • Figure 2 is a cross-sectional view of the metal straw of the preferred embodiment of the present invention.
  • Figure 3 is a side view of the metal straw of the preferred embodiment of the utility model
  • Figure 4 is an overall structure diagram of the metal foil of the preferred embodiment of the utility model
  • Figure 5 is an overall structure diagram of a metal foil according to another embodiment of the present invention.
  • Fig. 6 is an overall structure diagram of a metal foil according to another preferred embodiment of the present invention.
  • the embodiment of the present invention provides a metal straw, which includes a tubular body 1 wound by a metal foil 10.
  • the tubular body 1 is provided with an inlet 11, an outlet 12 and a circulation cavity 13.
  • the circulation cavity 13 communicates with the inlet 11 and the outlet 12.
  • At least the outlet end of the tubular body 1 is provided with an anti-cut part 2.
  • the metal foil 10 is preferably a metal foil 10 with a certain degree of flexibility and strength, which is convenient for folding and winding, such as aluminum foil and copper foil.
  • the anti-cut part 2 can effectively prevent the straw from cutting the user and improve the safety and comfort of use.
  • the anti-cut part 2 can be the surface of the tubular body 1 itself or other parts fixed on the tubular body 1 Noodles.
  • the metal foil 10 is arranged in a strip shape, the metal foil 10 is rolled up in a spiral shape, and the winding direction has an angle with the length direction of the metal foil 10, that is, the metal foil 10 Spiral winding.
  • the angle between the winding direction of the metal foil 10 and the length direction of the metal foil 10 is the first angle A.
  • the metal foil 10 is wound in a spiral shape, and the wound tubular body can be extended indefinitely, and the metal foil 10 is alternately overlapped, so that its sealing performance and stability performance are very good.
  • the metal foil 10 In production, when the metal foil 10 is wound, a central axis is required, so that the winding direction of the metal foil 10 and the length direction of the metal foil 10 are at a certain angle, and the metal foil 10 is wound on the central axis to produce the tubular body 1 Can be more uniform. After winding is completed, cut the required length. Due to the plasticity and rigidity of the metal foil 10, with its own characteristics, the spirally wound tubular body 1 can be sealed through its overlapping parts. Compared with the existing paper tubular body, it does not need to be sealed by heat melting or bonding. , There is no need to add another waterproof layer, the process is relatively simple, and it is safe and pollution-free. Further, the aluminum foil adopts food grade aluminum foil to ensure its safety.
  • the size of the first included angle A is between 30-60°, more preferably between 40-60°. If the included angle is too large, the overlapping part of the metal foil 10 is too small, and the sealing performance and stability are poor; if the included angle is too small, the length of the tubular body 1 that can be wound out of the metal foil 10 of the same length is too small, which wastes material , And the increased weight of the straw affects the comfort of use.
  • the elongated metal foil 10 includes a first long side 101, a second long side 102, a third short side 103, and a fourth short side 104.
  • the first long side 101 and the second long side 102 correspond to each other.
  • Parallel, the angle formed by at least one of the third short side 103 and the fourth short side 104 and the first long side is equal to the first included angle (the winding direction is parallel to the third short side 103 or the third short side 104 ).
  • the third short side 103 and/or the fourth short side 104 will surround on the same plane (the same plane means roughly on the same plane, not absolutely on the same plane ) To make the end surface of the tubular body 1 flat, which facilitates fixing the metal foil 10 and prevents it from loosening.
  • the angle formed by the first long side 101 and the third short side 103 is between 30-60°, and more preferably between 40-60°.
  • the first long side 101, the second long side 102, the third short side 103, and the fourth short side 104 form a parallelogram, and the acute angle of the parallelogram is between 30-60°, It is more preferably between 40-60°. If the included angle is too large, the overlapping part of the metal foil 10 is too small, and the sealing performance and stability are poor. If the included angle is too small, the length of the tubular body 1 that can be wound out of the metal foil 10 of the same length is too small, which wastes material , And the increased weight of the straw affects the comfort of use.
  • a part of the two ends of the parallelogram metal foil 10 is subtracted to make the two ends of the rolled tubular body 1 thinner, which is convenient for turning the ends inward to prevent cuts. unit.
  • the metal foil 10 is arranged in a long strip shape, the metal foil 10 is rolled up from one side of itself, and the winding direction is perpendicular to the length direction of the metal foil 10.
  • the first long side 101 is wound in the direction of the second long side 102, that is, the winding direction is parallel to the first long side 101 and the second long side 102.
  • This kind of winding method can only be wound into a fixed-length tubular body 1, which has obvious shortcomings relative to bolt winding, but you can still achieve it.
  • the tubular body 1 is arranged in a bent shape, and the tubular body 1 can be made into a bent shape by using a bending mold.
  • the completed tubular body 1 is approximately "L", which is convenient for people to use.
  • the metal foil 10 is arranged in a strip shape, and the width of the metal foil 10 is between 1-10 cm. If the width of the metal foil 10 is too small, the stability of the rolled tubular body is poor, and the speed of winding the tubular body 1 is very slow; because under normal circumstances, the length of the straw is generally 10-20 cm. If the width of the metal foil 10 is too large, After being cut into the tubular body 1, it is still unstable and easy to disperse.
  • the width of the overlapping portion (L2+L3) of the metal foil 10 occupies between 1/3-1 of its own width (L1), more preferably 1/2-2/3 between.
  • the overlapping part of the metal foil 10 is too small, and the sealing performance and stability are poor. If the overlapping part of the metal foil is too large, the length of the tubular body 1 that the metal foil 10 of the same length can be wound out is too small, which wastes material and The increased weight of the straw affects the comfort of use.
  • one side of the metal foil 10 close to the end of the tubular body 1 is located on the same plane (the same plane means roughly on the same plane, not absolutely on the same plane) on). It is convenient to fix the tubular body 1 so that it is not easy to fall apart.
  • the cut-resistant portion 2 is a fold formed by flanging the outlet end of the tubular body 1 in the direction of the circulation cavity 13 (folding formed by the inward flanging), forming a cut-resistant At the same time as the wound 2, the tubular body 1 can also be fixed.
  • the cut-preventing part 2 is a flange formed by flanging the outlet end of the tubular body 1 in a direction away from the circulation cavity 13 (a flange formed by flanging outward).
  • the cut prevention part 2 is a suction head fixed to the outlet end of the tubular body 1.
  • the suction head is a short tube with an inner diameter of an interference fit with the cylindrical body, and is used to sleeve the tubular body 1 to fix the end of the tubular body 1.
  • One end of the suction head is clamped on one end of the tubular body 1, and the other end is provided with an opening, and the opening is communicated with the inlet of the tubular body 1.
  • the part of the cut prevention part 2 that contacts the human body is a surface without sharp objects, which can prevent the human body from being cut.
  • the utility model forms the straw by winding the metal foil, and the overlapped part of the metal foil does not need to be tightly connected with other materials, which is safe and environmentally friendly, and the process is simple.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

本实用新型提供一种金属吸管，包括一由金属箔卷绕而成的管状体，所述管状体上设置有进口、出口和流通腔，所述流通腔连通所述进口和所述出口，至少所述管状体的出口端设置有防割伤部；该金属吸管制造工艺简单，且安全无污染。

Description

一种金属吸管 技术领域
本实用新型涉及生活用品领域，特别涉及一种金属吸管。
背景技术
吸食饮料的吸管是人们常用的一种工具，不论是包装饮料或是现场手作饮料都极为普及，因此全球人口每日消耗的吸管数量非常庞大。目前大部分的吸管仍然是以塑料制的吸管为主，虽然每支塑料吸管的体积不大，但每日累积使用的数量则是相当惊人的，也因为塑料吸管的体积不大，即使回收之后的再利用率及价值不高，也不易处理，因此全球每日都会产生数量极为庞大的吸管废弃物，一年甚至达数千亿支以上，这大量的塑料废弃物会对环境及生物产生危害，也会造成大量的海洋垃圾及消耗大量的处理成本，另外，塑料制的吸管还存在着塑化剂残留或吸食热饮食品的塑化剂析出的问题，对人体健康都是一种危害。为解决传统塑料制吸管的问题，市面上出现了能再重复使用的不锈钢吸管或玻璃吸管，然而该等吸管的成本高且需经清洗、消毒才可供重复使用，且其不方便携带，普及率低及不具商业经济优势，无法取代传统塑料制吸管。在申请号为“CN201820329653.8”，名称为“饮料用纸质吸管结构”的实用新型专利中公开了一种纸质吸管，该吸管虽然减少了污染，但是由于其相互交叠部分需要进行密接，密接采用热熔或者粘结的方式，增加了工艺的复杂度，且热熔需要的防水层或者粘结需要的粘合剂生产或者燃烧时都会对环境造成污染，且对人体健康不利。
实用新型内容
基于此，有必要提供一种更安全环保、且工艺简单的金属吸管。
本实用新型实施例提供一种金属吸管，包括一由金属箔卷绕而成的管状体，所述管状体上设置有进口、出口和流通腔，所述流通腔连通所述进口和所述出口。
优选地，至少所述管状体的出口端设置有防割伤部。
优选地，所述金属箔呈长条状设置，所述金属箔呈螺旋状卷起，且其卷绕方向与所述金属箔的长度方向形成第一夹角；或者，
所述金属箔呈长条状设置，所述金属箔呈螺旋状卷起，且其卷绕方向与所述金属箔的长度方向形成第一夹角，所述第一夹角的大小在30-60°之间。
优选地，所述长条状金属箔包括有第一长边、第二长边、第三短边和第四短边，所述第一长边和所述第二长边相平行，所述第三短边和所述第四短边至少其中之一与所述第一长边所形成夹角与所述第一夹角相等。
优选地，所述第一长边和所述第三短边形成的夹角大小在30-60°之间；或者，
所述第一长边、第二长边、第三短边和第四短边形成平行四边形，且该平行四边形的锐角大小在30-60°之间。
优选地，所述管状体呈弯折状设置。
优选地，所述金属箔呈长条状设置，所述金属箔的宽度为1-10cm之间，或者；
所述金属箔的交叠部分的宽度占其自身宽度的1/3-1之间。
优选地，卷绕成管状体后，所述金属箔靠近所述管状体一端的一个边位于同一平面上。
优选地，所述防割伤部为所述管状体的出口端向所述流通腔的方向翻边所形成的折边；或者，
所述防割伤部为所述管状体的出口端向远离所述流通腔的方向翻边所形成的折边；或者，
所述防割伤部为一固定在所述管状体的出口端的一吸头。
优选地，所述金属箔为铜箔或者铝箔。
本实用新型通过使用金属箔卷绕形成吸管，金属箔的交叠部分不需要其他材料密接，安全环保，工艺简单。
附图说明
通过附图中所示的本实用新型优选实施例更具体说明，本实用新型上述及其它目的、特征和优势将变得更加清晰。在全部附图中相同的附图标记指示相同的部分，且并未刻意按实际尺寸等比例缩放绘制附图，重点在于示出本的主旨。
图1为本实用新型优选实施例的金属吸管的正视图；
图2为本实用新型优选实施例的金属吸管的切面图；
图3为本实用新型优选实施例的金属吸管的侧视图；
图4为本实用新型优选实施例的金属箔的整体结构图；
图5为本实用新型另一实施例的金属箔的整体结构图；
图6为本实用新型其他优选实施例的金属箔的整体结构图。
具体实施方式
为了便于理解本实用新型，下面将参照相关附图对本进行更全面的描述。
需要说明的是，当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件并与之结合为一体，或者可能同时存在居中元件。本文所使用的术语“安装”、“一端”、“另一端”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本技术领域的技术人员通常理解的含义相同。本文中说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本实用新型。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1-6所示，本实用新型实施例提供一种金属吸管，包括一由金属箔10卷绕而成的管状体1，管状体1上设置有进口11、出口12和流通腔13，流通腔13连通进口11和出口12。
在优选实施例中，至少管状体1的出口端设置有防割伤部2。金属箔10优选具有一定柔软度和强度的金属箔10，方便折叠缠绕，例如铝箔、铜箔等。防割伤部2可以有效防止该吸管割伤使用者，提高使用的安全性和舒适度，防割伤部2可以为管状体1本身的面也可以为固定在管状体1上的其他部件上的面。
参考图1和图3，在优选实施例中，金属箔10呈长条状设置，金属箔10呈螺旋状卷起，且其卷绕方向与金属箔10的长度方向具有夹角，即金属箔10螺旋状缠绕。金属箔10的卷绕方向与金属箔10的长度方向之间的夹角为第一夹角A。金属箔10螺旋状缠绕，缠绕出的管状体能够无限延长，且金属箔10交互交叠，使其密封性和稳定性能都很好。生产中，缠绕金属箔10时，需要一中心轴，使金属箔10的缠绕方向与金属箔10的长度方向呈一定的夹角，将金属箔10缠绕在中心轴上，缠绕出的管状体1能够更均匀。缠绕完成后，切割需要的长度即可。由于金属箔10具有可塑性和刚性，利用其自身的特性，螺旋缠绕出来的管状体1通过其相互交叠部分即可实现密封，相对现有的纸质管状体不需要通过热熔或者粘结密封，也不需要另外再加防水层，工艺相对简单，且安全无污染。进一步地，铝箔采用食品级铝箔，使其安全性得到保证。
参考图4和图5，在进一步优选实施例中，第一夹角A的大小在30-60°之间进一步优选40-60°之间。若夹角太大，金属箔10的交叠部分太小，密封性和稳定性能差；如果夹角太小，同样长度的金属箔10能够缠绕出的管状体1的长度又太小，浪费材料，且增加的吸管的重量，影响使用的舒适度。
在优选实施例中，长条状金属箔10包括有第一长边101、第二长边102、第三短边103和第四短边104，第一长边101和第二长边102相平行，第三短边103和第四短边104至少其中之一与第一长边所形成夹角与第一夹角相等(卷绕方向与第三短边103或者第三短边104相平行)。即卷绕成管状体1后，第三短边103和/或第四短边104会环绕在同一平面上(该位于同一平面上是指大致在同一平面上，并不是绝对地在同一平面上)，使该管状体1的端面平整，方便固定该金属箔10，防止其松动。
参考图4和图5，在进一步优选实施例中，第一长边101和所述第三短边103形成的夹角大小在30-60°之间，进一步优选40-60°之间。在另一优选实施例中，第一长边101、第二长边102、第三短边103和第四短边104形成平行四边形，且该平行四边形的锐角大小在30-60°之间，进一步优选40-60°之间。若夹角太大，金属箔10的交叠部分太小，密封性和稳定性能差，如果夹角太小，同样长度的金属箔10能够缠绕出的管状体1的长度又太小，浪费材料，且增加 的吸管的重量，影响使用的舒适度。
参考图5，在进一步优选实施例中，平行四边形的金属箔10两端被减去一部分，使卷起来的管状体1两端更薄一些，方便将其端部向内翻边形成防割伤部。
参考图6，在另一优选实施例中，金属箔10呈长条状设置，金属箔10从其自身的一个侧边卷起，且其卷绕方向与金属箔10的长度方向相垂直。具体的，第一长边101向第二长边102的方向卷绕，即卷绕方向与第一长边101和第二长边102相平行。此种卷绕方式只能卷成定长的管状体1，相对螺栓卷绕有明显的不足，但是依然你能够实现。
在优选实施例中，管状体1呈弯折状设置，管状体1采用可以采用折弯模具制成弯折状，完成的管状体1大约呈“L”，方便人们使用。
在优选实施例中，金属箔10呈长条状设置，金属箔10的宽度为1-10cm之间。如果金属箔10的宽度太小，卷起的管状体稳定性差，且卷绕管状体1的速度很慢；因为通常情况下，吸管的长度一般10-20cm，如果金属箔10的宽度太大，切割成管状体1后依然会不稳定，容易散开。
参考图1，在优选实施例中，金属箔10的交叠部分(L2+L3)的宽度占其自身宽度(L1)的1/3-1之间，进一步优选1/2-2/3之间。金属箔10的交叠部分太小，密封性和稳定性能差，如果金属箔的交叠部分太大，同样长度的金属箔10能够缠绕出的管状体1的长度又太小，浪费材料，且增加的吸管的重量，影响使用的舒适度。
在优选实施例中，卷绕呈管状体1后，金属箔10靠近管状体1一端的一个边位于同一平面上(该位于同一平面上是指大致在同一平面上，并不是绝对地在同一平面上)。方便固定管状体1，使其不容易散开。
参考图2，在优选实施例中，防割伤部2为管状体1的出口端向流通腔13的方向翻边所形成的折边(向内翻边所形成的折边)，形成防割伤部2的同时，还能够将管状体1固定。在另一优选实施例中，防割伤部2为管状体1的出口端向远离流通腔13的方向翻边所形成的折边(向外翻边所形成的折边)。翻边时，通过冲压设备冲压管状体的端部边缘，使其向内翻卷、弯折；然后通过打 磨设备对边缘进行修正，使其光滑无毛刺。在另一优选实施例中，防割伤部2为一固定在管状体1的出口端的一吸头。进一步地，吸头为一内径与该筒状体过盈配合的短筒，用来套在该管状体1上，从而固定管状体1的端部。吸头的一端卡持在管状体1的一端，另一端设置开口，且该开口与管状体1的入口连通。其中，防割伤部2与人体接触的部分为没有尖锐物体的面，可以防止割伤人体。
本实用新型通过使用金属箔卷绕形成吸管，金属箔的交叠部分不需要其他材料密接，安全环保，工艺简单。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了实用新型的具体实施方式，其描述较为具体和详细，但并不能因此而理解为对实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。因此，本实用新型专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种金属吸管，其特征在于，包括一由金属箔卷绕而成的管状体，所述管状体上设置有进口、出口和流通腔，所述流通腔连通所述进口和所述出口。
  2. 如权利要求1所述的金属吸管，其特征在于，至少所述管状体的出口端设置有防割伤部。
  3. 如权利要求1所述的金属吸管，其特征在于，所述金属箔呈长条状设置，所述金属箔呈螺旋状卷起，且其卷绕方向与所述金属箔的长度方向形成第一夹角；或者，
    所述金属箔呈长条状设置，所述金属箔呈螺旋状卷起，且其卷绕方向与所述金属箔的长度方向形成第一夹角，所述第一夹角的大小在30-60°之间。
  4. 如权利要求1所述的金属吸管，其特征在于，所述长条状金属箔包括有第一长边、第二长边、第三短边和第四短边，所述第一长边和所述第二长边相平行，所述第三短边和所述第四短边至少其中之一与所述第一长边所形成夹角与所述第一夹角相等。
  5. 如权利要求4所述的金属吸管，其特征在于，所述第一长边和所述第三短边形成的夹角大小在30-60°之间；或者，
    所述第一长边、第二长边、第三短边和第四短边形成平行四边形，且该平行四边形的锐角大小在30-60°之间。
  6. 如权利要求1所述的金属吸管，其特征在于，所述管状体呈弯折状设置。
  7. 如权利要求1所述的金属吸管，其特征在于，所述金属箔呈长条状设置，所述金属箔的宽度为1-10cm之间，或者；
    所述金属箔的交叠部分的宽度占其自身宽度的1/3-1之间。
  8. 如权利要求1所述的金属吸管，其特征在于，卷绕成管状体后，所述金属箔靠近所述管状体一端的一个边位于同一平面上。
  9. 如权利要求2任一项所述的金属吸管，其特征在于，所述防割伤部为所 述管状体的出口端向所述流通腔的方向翻边所形成的折边；或者，
    所述防割伤部为所述管状体的出口端向远离所述流通腔的方向翻边所形成的折边；或者，
    所述防割伤部为一固定在所述管状体的出口端的一吸头。
  10. 如权利要求1-9任一项所述的金属吸管，其特征在于，所述金属箔为铜箔或者铝箔。
PCT/CN2019/085636 2019-02-28 2019-05-06 一种金属吸管 WO2020172995A1 (zh)

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