WO2021056656A1 - 一种安全型自封袋 - Google Patents

一种安全型自封袋 Download PDF

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Publication number
WO2021056656A1
WO2021056656A1 PCT/CN2019/113005 CN2019113005W WO2021056656A1 WO 2021056656 A1 WO2021056656 A1 WO 2021056656A1 CN 2019113005 W CN2019113005 W CN 2019113005W WO 2021056656 A1 WO2021056656 A1 WO 2021056656A1
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WO
WIPO (PCT)
Prior art keywords
bag
strip
double
layer
sealed
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PCT/CN2019/113005
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English (en)
French (fr)
Inventor
刘超
Original Assignee
青岛德吉利包装科技有限公司
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Application filed by 青岛德吉利包装科技有限公司 filed Critical 青岛德吉利包装科技有限公司
Priority to US16/966,016 priority Critical patent/US11332283B2/en
Publication of WO2021056656A1 publication Critical patent/WO2021056656A1/zh

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    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating means
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape

Definitions

  • the utility model relates to the technical field of sealed bags, in particular to a safety type self-sealing bag.
  • the self-sealing bag is a product that can be sealed by itself only by the self-sealing strips at the opening of the bag. It has various advantages such as moisture-proof, waterproof and pollution-proof. It is used in food, accessories, medicines, cosmetics, frozen foods, stamps, chemical medicines, etc. And other industries have a wide range of applications.
  • the sealing structure of the ziplock bag is to install a sealing strip at the mouth of the bag to form a buckle seal.
  • This opening method is relatively simple and convenient. If there are dangerous items in the bag, it is extremely dangerous for children who are not able to discern, opening the bag by mistake.
  • the present invention provides a safe ziplock bag, which makes the ziplock bag open with skill, effectively prevents children from opening and contacting the items in the ziplock bag, and avoids danger.
  • a safety type ziplock bag comprising a double-sided bag body and a sealing strip arranged on the inner side of the mouth of the bag body, and both ends of the sealing strip are sealed in the On both sides of the bag body, the sealing strip includes a card strip 1 and a card strip 2 that can be sealed to each other.
  • the two long sides of the card strip 1 are sealed and attached to one of the inner sides of the bag body. Only the long side of the card strip two away from the bag mouth is sealed and attached to the other inner side of the bag body; on the bag surface provided with the card strip one, the card strip one is far away from the bag.
  • One side of the bag mouth is provided with a double-layer bag surface area, the double-layer bag surface area is only far away from the side opening of the clip one and the opening is located on the outer side layer of the double-layer bag surface area, so The outer side layer is located on the outer side of the bag body.
  • the side of the double-layer bag surface area close to the first side of the clip and the long side of the first one away from the bag mouth are overlapped and sealed to fit.
  • the surface area of the double-layer bag has a rectangular shape, and the length direction of the surface area of the double-layer bag is parallel to the long side of the strip one.
  • the two short sides of the rectangular shape in the surface area of the double-layer bag are respectively sealed and attached to the two sides of the bag body.
  • the opening at the surface area of the double-layer bag is a slit.
  • concave strips and convex ribs that are buckled and sealed with each other are provided on the opposite sides of the first clip strip and the second clip strip, and the convex strips and the convex ribs are arranged in pairs, and the concave strips are arranged at the On the first clip, the convex ribs are arranged on the second clip; on the convex ribs, two protruding teeth buckles are provided on the side facing the bag mouth, and the convex ribs face away from the The side surface of the bag mouth has a circular arc transition, the inner concave contour of the concave strip is the same as the outer convex contour of the convex rib; the number of pairs of the convex strip and the convex rib is at least two pairs.
  • the edge of the bag mouth is sealed and attached.
  • the opening method of the utility model is:
  • Step 1 Tear off the sealing line at the edge of the bag mouth
  • Step 2 Put the fingers of the first hand into the double-layer bag area and pinch the outer side layer, the second hand pinch the side of the bag with the second card strip, and both hands should pinch close to the seal
  • the position of the strip, and the point of force is the same position relative to the sealing strip, the first hand is close to the bag body and the bag surface is perpendicular to the bag mouth, and the second hand is facing 180° opposite to the first hand. Pull strongly in the direction to pull the sealing strip away from the stress point;
  • step two when the first hand reaches into the double-layer bag surface area to pinch the outer side layer, the pinching position is preferentially selected to be close to the two ends of the opening.
  • the utility model has a simple and reasonable structure and is convenient to use.
  • the two long sides of the card strip 1 are sealed and attached to the bag body, and the long side of the card strip 2 only away from the bag mouth is sealed and attached to the bag body.
  • the entire sealing strip is pulled toward the bag surface that is next to the card strip. Therefore, only pulling outward from both sides of the bag mouth cannot tear the sealing strip; pinch the outer side layer and the sticker at the same time.
  • the stress point is the pair of convex strips and concave ribs on the sealing strip farthest from the bag mouth, and the stress point acts on the same pair of concave strips and convex ribs.
  • the fingers pinch the position near the two ends of the opening in the surface area of the double-layer bag and pull, because the two sides of the surface area of the double-layer bag are in a sealed and fitted state to form an opening downward It is pocket-shaped, so when the fingers pinch the area and pull towards the bag opening, the fingers are equivalent to hooking the double-layer bag surface area, which saves effort when tearing off the sealing strip.
  • Figure 1 is a schematic cross-sectional structure diagram of an embodiment of the present utility model.
  • Fig. 2 is a schematic view showing the structure of the separated bag body in the cross section of the embodiment of the present invention.
  • Figure 3 is a schematic diagram of an embodiment of the present utility model when it is opened.
  • Fig. 4 is a schematic diagram of the three-dimensional structure of the bag body of the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the structure at A in FIG. 2.
  • a safety type ziplock bag comprising a double-sided bag body 1 and a sealing strip 3 arranged inside the bag mouth 2 of the bag body 1.
  • the edge of the bag mouth 2 is heat-sealed as the first sealing line 4 to seal the bag
  • the inside of the body 1 is sealed.
  • the two ends of the sealing strip 3 extend to be flush with the two sides of the bag body 1 and are simultaneously heat-sealed and sealed.
  • the sealing strip 3 includes a card strip 31 and a card strip two that can be sealed to each other. 32.
  • the two long sides of the clip one 31 are heat-sealed with one of the inner sides of the bag body 1, and the clip two 32 only has the long side away from the bag mouth 2 and the bag
  • the other inner side of the body 1 is heat-sealed and sealed.
  • first strip 31 and the second strip 32 are provided with a concave strip 311 and a convex rib 321 that are buckled and sealed with each other, and the convex strip and the convex strip
  • the ribs 321 are arranged in pairs. In this embodiment, the number of pairs of the concave strip 311 and the convex rib 321 is 3 pairs.
  • the convex ribs 321 are provided on the convex ribs 321, and two protruding teeth buttons 3211 are provided on the convex ribs 321 facing the side of the bag mouth 2.
  • the sides of the convex ribs 321 facing away from the bag mouth 2 are In a circular arc transition 3212, the inner concave contour of the concave strip 311 is the same as the outer convex contour of the convex rib 321.
  • a rectangular double-layer bag surface area 5 is provided on the side of the card strip 31 away from the bag mouth 2, and the double-layer bag surface area
  • the length direction of 5 is parallel to the long side of the card strip 31; the double-layer bag surface area 5 is close to the side of the card strip 31 and the length of the card strip 31 away from the bag opening 2.
  • the sides are overlapped and heat-sealed; the double-layer bag surface area 5 is only far away from the side opening of the clip one 31 and the opening 51 is located on the outer side layer 52 of the double-layer bag surface area 5.
  • the surface layer 52 is located on the outer side of the bag body 1;
  • the specific structure of the double-layer bag surface area 5 is: the outer side layer 52 of the double-layer bag surface area 5 and the corresponding side surface of the bag body 1 are integrally formed, and the double-layer bag
  • the inner side layer 53 of the surface area 5 is a heat-sealed and attached patch strip.
  • the bag body 1 on the same side is heat-sealed and sealed, and the opening 51 at the double-layer bag surface area 5 is a slit, which in some other embodiments may also have a certain width; in addition, the two patch strips In this embodiment, the ends extend until the two sides of the bag body 1 overlap and are heat-sealed. In some other embodiments, the length of the patch strip may be shorter than the length between the two sides of the bag body 1.
  • the patch strip is made of transparent material.
  • the outer side layer 52 can be opened directly from the opening 51 of the double-layer bag surface area 5 to observe the bag body 1 In order to achieve the purpose of checking the contents of the bag, there is no need to open the ziplock bag.
  • Step 1 Tear off the sealing line at the edge of the bag mouth 2;
  • Step 2 Put the fingers of the first hand into the double-layer bag surface area 5 and pinch the outer side layer 52, and the second hand pinch the side of the bag opening 2 with the clip two 32, when the first hand When the hand reaches into the double-layer bag surface area 5 to pinch the outer side layer 52, the pinch position is preferentially selected close to the two ends of the opening 51; the two hands should pinch the position close to the sealing strip 3, and the force point is the opposite sealing strip At the same position of 3, the first hand is close to the bag surface of the bag body 1 and pulls vertically toward the bag mouth 2. At the same time, the second hand is pulled strongly in the direction opposite to the first hand at 180° to pull the sealing strip 3 Pull away from the stress point.
  • the utility model has a simple and reasonable structure and is convenient to use.
  • the two long sides of the clip one 31 are sealed and attached to the bag body 1, and the long side of the clip two 32 only away from the bag mouth 2 is sealed and attached to the bag body 1. Therefore, when the two sides of the bag opening 2 are pinched and pulled, the entire sealing strip 3 is pulled toward the bag surface where the card strip 31 is attached. Therefore, only the two sides of the bag opening 2 are pulled outward, and the sealing strip 3 cannot be torn apart;
  • the stress point is the pair of convex and concave ribs on the sealing strip 3 farthest from the bag opening 2.
  • the stress points act on the same pair of concave strips 311 and convex ribs 321 to ensure that the tensile stress points are the same at this time, making the sealed bag easy to open, and the convex rib 321 is only provided with a tooth buckle 3211 on the side facing the bag mouth 2.
  • the side arc transition 3212 facing the bag opening 2 makes it difficult for the sealing strip 3 to open downward along the direction of the bag opening 2, and when pulling synchronously, the lower end of the card strip 31 pulls outwards and upwards, so the concave strip 311
  • the lower end that is, the position where the arc transition of the concave strip 311 and the convex rib 321 engages, is easily pulled apart, so that the opening of the sealing strip 3 is skillful;
  • the fingers pinch the position close to the two ends of the opening 51 in the double-layer bag surface area 5 and pull it. Since the two sides of the double-layer bag surface area 5 are in a sealed and fitted state, an opening 51 is formed. It’s like a pocket underneath, so when your fingers pinch this area and pull it toward the bag opening 2, your fingers are equivalent to hooking the double-layer bag surface area 5. It saves effort when tearing off the sealing strip 3.
  • the fingers on the side of the bag mouth 2 of 32 have the same labor-saving principle when pinching the position of the bag body 1 close to the side, especially for the bag body 1 with a relatively smooth material, when it is opened, the labor-saving effect is more effective. obvious;
  • the sealing strip 3 can be easily torn apart only by pinching the corresponding position with two hands and displacing 180° along the bag surface of the bag body 1, so that the ziplock bag in this application has a certain degree of skill. For adults, it is easy to open the ziplock bag, while for children or people with no discrimination ability, it can effectively prevent the ziplock bag from opening and avoid danger.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

一种安全型自封袋，包括双面的袋体（1）和设置在袋体（1）的袋口（2）处内侧的密封条（3），所述密封条（3）包括能相互密封的卡条一（31）和卡条二（32），卡条一（31）的两条长侧边与袋体（1）的其中一个内侧面密封贴合，卡条二（32）上仅远离袋口（2）的长侧边与袋体（1）的另一个内侧面密封贴合；在设置有卡条一（31）的袋面上，在卡条一（31）远离袋口（2）的一侧设置有双层袋面区（5），双层袋面区（5）在仅远离卡条一（31）的侧边设有开口（51），该开口（51）位于双层袋面区（5）的外侧面层（52）上，外侧面层（52）位于袋体（1）的外侧面。该自封袋开启具有技巧性，有效防止儿童打开接触自封袋内的物品，避免发生危险。

Description

一种安全型自封袋 技术领域
本实用新型涉及密封袋技术领域，具体涉及一种安全型自封袋。
背景技术
自封袋是仅靠袋子自身开口处的自封条互相扣合便能自行密封的产品，具有防潮、防水、防污染等各种优点，在食品、饰品、药品、化妆品、冷冻食品、邮品、化药等行业有着广泛的应用。
发明概述
技术问题
自封袋的密封结构是在袋口处安装密封条形成扣合密封，打开时用两只手分别捏住袋口的两侧向外拉，从而将密封条打开，此种打开方式较为简单方便，若袋子中装有危险物品，对于没有辨别能力的儿童来说，误打开袋子具有极高的危险性。
问题的解决方案
技术解决方案
为了解决上述现有技术的问题，本实用新型提供一种安全型自封袋，使自封袋开启具有技巧性，有效防止儿童打开接触自封袋内的物品，避免发生危险。
本实用新型的目的可通过下列技术方案来实现：一种安全型自封袋，包括双面的袋体和设置在袋体的袋口处内侧的密封条，所述密封条的两端密封在所述袋体的两侧，所述密封条包括能相互密封的卡条一和卡条二，所述卡条一的两条长侧边与所述袋体的其中一个内侧面密封贴合，所述卡条二上仅远离所述袋口的长侧边与所述袋体的另一个内侧面密封贴合；在设置有所述卡条一的袋面上，在所述卡条一远离所述袋口的一侧设置有双层袋面区，所述双层袋面区仅远离所述卡条一的侧边开口并且该开口位于所述双层袋面区的外侧面层上，所述外侧面层位于所述袋体的外侧面。
优选的，所述双层袋面区靠近所述卡条一的侧边和所述卡条一远离所述袋口的 长侧边重合密封贴合。
优选的，所述双层袋面区为的长方形形状，并且所述双层袋面区的长度方向与所述卡条一的长侧边平行。
优选的，所述双层袋面区的长方形形状的两条短边分别密封贴合在所述袋体的两侧边。
优选的，所述双层袋面区处的开口为一条切开的缝隙。
优选的，所述卡条一和所述卡条二相对的侧面处设置有相互扣合密封的凹条和凸筋，并且所述凸条与凸筋成对设置，所述凹条设置在所述卡条一上，所述凸筋设置在所述卡条二上；在所述凸筋上朝向所述袋口的侧面设置有两条凸出的牙扣，所述凸筋上背向所述袋口的侧面为圆弧过渡，所述凹条的内凹轮廓与所述凸筋的外凸轮廓相同；所述凸条与凸筋的成对数量至少为两对。
优选的，所述袋口的边缘处密封贴合。
本实用新型的打开方法为：
步骤一：撕除袋口的边缘处的密封线；
步骤二：第一只手的手指伸进双层袋面区内并捏住外侧面层，第二只手捏住带有卡条二的袋口的侧边，两只手要捏住靠近密封条的位置，并且用力点为相对密封条的同一位置，第一只手紧贴袋体的袋面垂直朝向袋口方向用力拉，同时第二只手向着与第一只手呈180°的反方向用力拉，将密封条从受力点处拉开；
此外，在步骤二中，第一只手伸进双层袋面区捏住外侧面层时，捏紧的位置优先选取靠近开口两端的位置。
发明的有益效果
有益效果
本实用新型所带来的综合效果包括：
本实用新型构造简单合理，使用方便，将卡条一的两条长侧边与袋体密封贴合、卡条二仅远离袋口的长侧边与袋体密封贴合，因此在捏住袋口的两侧拉动时，整个密封条朝向贴着卡条一的袋面拉动，因此仅从袋口的两侧向外拉动，无法将密封条撕开；在同时捏住外侧面层以及贴有卡条二的袋口侧边，并且同步错位拉动时，受力点为密封条上最远离袋口的一对凸条和凹筋，受力点作用在 同对的凹条与凸筋上，能保证此时受拉力点相同，使密封袋容易拉开，并且凸筋上仅朝向袋口的侧面设置有牙扣，背向袋口的侧面圆弧过渡，使得密封条沿袋口方向向下打开困难，而在同步错位拉动时，卡条一的下端向外向上拉扯，因此凹条的下端即凹条与凸筋圆弧过渡卡合的位置容易被拉开，使密封条的打开具有技巧性；此外，在选取捏紧的位置时，手指捏住靠近双层袋面区中靠近开口两端的位置拉动，由于双层袋面区的两侧边为密封贴合状态形成一个开口向下的口袋状，因此手指捏住此处区域向袋口方向拉动时，手指相当于钩住双层袋面区，在撕开密封条时更加省力，对于捏住贴有卡条二的袋口侧边的手指，在捏住袋体靠近侧边的位置时，具有相同的省力原理，尤其是对于材质较为光滑的袋体来说，打开时，其省力的效果更加明显；综上，只有通过两只手捏住对应的位置沿着袋体的袋面错位180°才能容易的将密封条撕开，使得本申请中的自封袋具有一定的技巧性，对于正常的成年人而言，很容易将自封袋打开，而对于儿童或没有鉴别能力的人来说，能有效防止打开自封袋，避免发生危险。
对附图的简要说明
附图说明
图1是本实用新型实施例的截面结构示意图。
图2是本实用新型实施例的截面的袋体分开的结构示意图。
图3是本实用新型实施例在打开时的示意图。
图4是本实用新型实施例的袋体的立体结构示意图。
图5是图2中的A处的结构示意图。
其中，在附图中相同的部件用相同的附图标记；附图并未按照实际的比例绘制。
实施该发明的最佳实施例
本发明的最佳实施方式
下面结合附图和实施例进一步说明本实用新型。
发明实施例
实施例
一种安全型自封袋，包括双面的袋体1和设置在袋体1的袋口2处内侧的密封条3，所述袋口2的边缘处热合密封作为第一道密封线4将袋体1内部密封，所述密封条3的两端延伸至与所述袋体1的两侧边平齐并同步热合密封，所述密封条3包括能相互密封的卡条一31和卡条二32，所述卡条一31的两条长侧边与所述袋体1的其中一个内侧面热合密封，所述卡条二32上仅远离所述袋口2的长侧边与所述袋体1的另一个内侧面热合密封，在所述卡条一31和所述卡条二32相对的侧面处设置有相互扣合密封的凹条311和凸筋321，并且所述凸条与凸筋321成对设置，在本实施例中，所述凹条311与凸筋321的成对数量为3对，在所述卡条一31上设置的为凹条311，所述卡条二32上设置的为凸筋321，在所述凸筋321上朝向所述袋口2的侧面设置有两条凸出的牙扣3211，所述凸筋321上背向所述袋口2的侧面为圆弧过渡3212，所述凹条311的内凹轮廓与所述凸筋321的外凸轮廓相同。
在设置有所述卡条一31的袋面上，在所述卡条一31远离所述袋口2的一侧设置有长方形形状的双层袋面区5，并且所述双层袋面区5的长度方向与所述卡条一31的长侧边平行；所述双层袋面区5靠近所述卡条一31的侧边和所述卡条一31远离所述袋口2的长侧边重合并热合密封；所述双层袋面区5仅远离所述卡条一31的侧边开口并且该开口51位于所述双层袋面区5的外侧面层52上，所述外侧面层52位于所述袋体1的外侧面；
此外，为了简化本申请中自封袋的生产工艺，对于双层袋面区5的具体结构为：双层袋面区5的外侧面层52与袋体1对应的侧面为一体成型，双层袋面区5的内侧面层53为热合密封贴附的贴片条，该贴片条的一条长侧边与卡条一31原理袋口2的长侧边处重合后热合密封，其余三条边与同侧的袋体1热合密封，双层袋面区5处的开口51为一条切开的缝隙，该缝隙在一些其他的实施例中还可以是具有一定的宽度；此外，贴片条的两端部在本实施例中延伸至袋体1的两侧边重合并且热合密封，在一些其他实施例中，贴片条的长度可以短于袋体1的两侧边之间的长度。
此外，当袋体1的袋面为遮光材料制成时，贴片条采用透明材质制作，使用时可以直接从双层袋面区5的开口51处将外侧面层52掀开观察袋体1内的物品，以 达到检查袋内物品的目的，无需打开自封袋。
本实用新型实施例的打开方法为：
步骤一：撕除袋口2的边缘处的密封线；
步骤二：第一只手的手指伸进双层袋面区5内并捏住外侧面层52，第二只手捏住带有卡条二32的袋口2的侧边，当第一只手伸进双层袋面区5捏住外侧面层52时，捏紧的位置优先选取靠近开口51两端的位置；两只手要捏住靠近密封条3的位置，并且用力点为相对密封条3的同一位置，第一只手紧贴袋体1的袋面垂直朝向袋口2方向用力拉，同时第二只手向着与第一只手呈180°的反方向用力拉，将密封条3从受力点处拉开。
本实用新型构造简单合理，使用方便，将卡条一31的两条长侧边与袋体1密封贴合、卡条二32仅远离袋口2的长侧边与袋体1密封贴合，因此在捏住袋口2的两侧拉动时，整个密封条3朝向贴着卡条一31的袋面拉动，因此仅从袋口2的两侧向外拉动，无法将密封条3撕开；在同时捏住外侧面层52以及贴有卡条二32的袋口2侧边，并且同步错位拉动时，受力点为密封条3上最远离袋口2的一对凸条和凹筋，受力点作用在同对的凹条311与凸筋321上，能保证此时受拉力点相同，使密封袋容易拉开，并且凸筋321上仅朝向袋口2的侧面设置有牙扣3211，背向袋口2的侧面圆弧过渡3212，使得密封条3沿袋口2方向向下打开困难，而在同步错位拉动时，卡条一31的下端向外向上拉扯，因此凹条311的下端即凹条311与凸筋321的圆弧过渡卡合的位置容易被拉开，使密封条3的打开具有技巧性；
此外，在选取捏紧的位置时，手指捏住靠近双层袋面区5中靠近开口51两端的位置拉动，由于双层袋面区5的两侧边为密封贴合状态形成一个开口51向下的口袋状，因此手指捏住此处区域向袋口2方向拉动时，手指相当于钩住双层袋面区5，在撕开密封条3时更加省力，对于捏住贴有卡条二32的袋口2侧边的手指，在捏住袋体1靠近侧边的位置时，具有相同的省力原理，尤其是对于材质较为光滑的袋体1来说，打开时，其省力的效果更加明显；
综上，只有通过两只手捏住对应的位置沿着袋体1的袋面错位180°才能容易的将密封条3撕开，使得本申请中的自封袋具有一定的技巧性，对于正常的成年人而言，很容易将自封袋打开，而对于儿童或没有鉴别能力的人来说，能有效防 止打开自封袋，避免发生危险。
本说明书所附图式所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本实用新型可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本实用新型所能产生的功效及所能达成的目的下，均应仍落在本实用新型所揭示的技术内容得能涵盖的范围内。同时，本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”及“一”等的用语，亦仅为便于叙述的明了，而非用以限定本实用新型可实施的范围，其相对关系的改变或调整，在无实质变更技术内容下，当亦视为本实用新型可实施的范畴。
以上参考了优选实施例对本实用新型进行了描述，但本实用新型的保护范围并不限制于此，任何落入权利要求的范围内的所有技术方案均在本实用新型的保护范围内。在不脱离本实用新型的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。

Claims (7)

  1. 一种安全型自封袋，包括双面的袋体和设置在袋体的袋口处内侧的密封条，所述密封条的两端密封在所述袋体的两侧，所述密封条包括能相互密封的卡条一和卡条二，所述卡条一的两条长侧边与所述袋体的其中一个内侧面密封贴合，所述卡条二上仅远离所述袋口的长侧边与所述袋体的另一个内侧面密封贴合，其特征在于，在设置有所述卡条一的袋面上，在所述卡条一远离所述袋口的一侧设置有双层袋面区，所述双层袋面区仅远离所述卡条一的侧边开口并且该开口位于所述双层袋面区的外侧面层上，所述外侧面层位于所述袋体的外侧面。
  2. 根据权利要求1所述的安全型自封袋，其特征在于，所述双层袋面区靠近所述卡条一的侧边和所述卡条一远离所述袋口的长侧边重合密封贴合。
  3. 根据权利要求2所述的安全型自封袋，其特征在于，所述双层袋面区为的长方形形状，并且所述双层袋面区的长度方向与所述卡条一的长侧边平行。
  4. 根据权利要求3所述的安全型自封袋，其特征在于，所述双层袋面区的长方形形状的两条短边分别密封贴合在所述袋体的两侧边。
  5. 根据权利要求4所述的安全型自封袋，其特征在于，所述双层袋面区处的开口为一条切开的缝隙。
  6. 根据权利要求1-5任一项所述的安全型自封袋，其特征在于，所述卡条一和所述卡条二相对的侧面处设置有相互扣合密封的凹条和凸筋，并且所述凸条与凸筋成对设置，所述凹条设置在所述卡条一上，所述凸筋设置在所述卡条二上；在所述凸筋上朝向所述袋口的侧面设置有两条凸出的牙扣，所述凸筋上背向所述袋口的侧面为圆弧过渡，所述凹条的内凹轮廓与所述凸筋的外凸轮廓相同；所述凸条与凸筋的成对数量至少为两对。
  7. 根据权利要求6所述的安全型自封袋，其特征在于，所述袋口的边 缘处密封贴合。
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