WO2017157226A1 - 单层封闭拉链 - Google Patents

单层封闭拉链 Download PDF

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Publication number
WO2017157226A1
WO2017157226A1 PCT/CN2017/076130 CN2017076130W WO2017157226A1 WO 2017157226 A1 WO2017157226 A1 WO 2017157226A1 CN 2017076130 W CN2017076130 W CN 2017076130W WO 2017157226 A1 WO2017157226 A1 WO 2017157226A1
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WO
WIPO (PCT)
Prior art keywords
chain
hook
insert
width
cuff
Prior art date
Application number
PCT/CN2017/076130
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English (en)
French (fr)
Inventor
郑运婷
Original Assignee
郑运婷
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Publication date
Application filed by 郑运婷 filed Critical 郑运婷
Publication of WO2017157226A1 publication Critical patent/WO2017157226A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/34—Stringer tapes; Flaps secured to stringers for covering the interlocking members
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/26—Sliders
    • A44B19/30—Sliders with means for locking in position
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/26—Sliders
    • A44B19/30—Sliders with means for locking in position
    • A44B19/308—Sliders with means for locking in position in the form of a spring-actuated locking member actuated by the pull member

Definitions

  • the invention relates to a safety zipper, in particular to a single layer closed zipper.
  • the zipper used in the trunk or duffel bag due to the insufficient strength of the zipper, can be used to insert the zipper into the zipper during use, and the zipper can be opened, and a single-layer closed zipper that prevents the zipper from being slid has been It has become a need to improve the strength of zippers and theft.
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide a single-layer closed zipper for improving the strength of the zipper and improving the anti-theft performance of the zipper.
  • a single-layer closed zipper comprising a chain seat, a chain and a steel tape measure, the chain is connected with the chain seat, the steel tape measure is connected with the chain seat and the chain;
  • the chain seat comprises a left chain groove and a right chain groove
  • the chain includes a left chain, a right chain, a chain sealing member and a chain sealing member.
  • the left chain and the right chain are connected with the chain sealing member and the chain sealing member, the left chain is connected with the left chain groove, and the right chain and the right chain are connected.
  • the groove is connected, the left chain is connected with the right chain;
  • the steel tape measure comprises a casing and a steel coil, the head end of the steel coil is connected with the chain head sealing member of the chain, and the steel coil belt is mechanically coupled with the left chain and the right chain;
  • the belt is located above the chain seat, the steel coil belt seals the connection of the left chain and the right chain;
  • the left chain has a left chain buckle and a left chain cloth, the left chain buckle has a left anti-insert piece and a left hook;
  • the right chain It has a right clasp and a right chain cloth, the right clasp has a right anti-insert and a right hook;
  • the left and right hooks are located above the left and right chain slots;
  • the left anti-insert is located on each left The position between the cuffs, the right anti-insert is located in each The position between the right cufflinks, the left anti-insert and the right anti-inser
  • the single-layer closed zipper can be used by connecting the left chain cloth and the right chain cloth to the trunk of the luggage box, or connecting the left chain cloth and the right chain cloth to the bag opening of the duffel bag, and making the steel tape measure
  • the handle is located outside the trunk or outside the duffel bag; when the trunk or duffel bag is closed, the hand grip pulls the steel tape measure and the chain seat moves, and the chain seat follows the handle to move, so that the left chain and the right chain bite together, the baggage
  • the mouth of the box or the mouth of the duffel bag is closed; at the same time, the steel tape measure As the chain moves, the steel coil is pulled out with the movement of the steel tape measure, and the pulled steel coil is pulled by the left hook of the left clasp and the right hook of the right clasp on the chain seat.
  • the steel coil is located above the connection port of the left chain and the right chain, blocking the connection between the left chain and the right chain; when the illegal element is inserted into the chain by the sharp weapon, the sharp object is blocked by the steel coil, which is difficult to insert; the left chain and the right chain are engaged.
  • each left anti-insert moves to a position between one left cuff and the other left cuff
  • each right anti-insert moves to a position between one right cuff and the other right cuff.
  • the invention has the beneficial effects that the single-layer closed zipper is arranged on the trunk or the duffel bag, and the single-layer closed zipper is provided with the left anti-insert tab, the right anti-insert tab and the steel tape measure, and the left anti-insert tab is used to block a left clasp and The gap between the other left clasp is blocked by the right anti-insert tab to block the gap between one right clasp and the other right clasp, and the steel coil of the steel tape measure is used to seal the entrance of the chain, when the criminals use the sharp weapon to insert When the zipper is pulled, the sharp weapon is blocked by the steel coil; it is more difficult to insert the zipper with the sharp weapon.
  • Figure 1 is a schematic view showing the structure of a single-layer closed zipper
  • Figure 2 is a partial schematic view of the left anti-insert tab and the right anti-insert tab;
  • Figure 3 is a left side view of Figure 1.
  • Figure 4 is a plan view of Figure 3.
  • FIG. 1 is a schematic structural view of a single-layer closed zipper shown in FIG. 1, a partial schematic view of the left anti-insert tab and the right anti-insert tab shown in FIG. 2, a left side view of FIG. 1 and a diagram of FIG.
  • a top view of 3, a single-layer closed zipper comprising a chain base 1, a chain 2 and a steel tape measure 3, the chain 2 is connected to the chain base 1, the steel tape measure 3 is connected to the chain base 1 and the chain 2;
  • the chain base 1 comprises a left chain groove 4 and the right chain groove 5,
  • the chain 2 comprises a left chain 6, a right chain 7, a chain closure member 8 and a chain closure member 9, a left chain 6 and a right chain 7 with a chain closure member 8 and a chain closure member 9 is connected,
  • the left chain 6 is connected to the left chain slot 4
  • the right chain 7 is connected to the right chain slot 5
  • the left chain 6 is connected to the right chain 7.
  • the steel tape 3 includes a casing 10 and a steel coil 11 and a steel coil 11
  • the head end 12 is connected to the chain head sealing member 8 of the chain 2, and the steel coil belt 11 is mechanically coupled with the left chain strip 6 and the right chain strip 7; the steel coil belt 11 is located above the chain base 1, and the steel coil belt 11 will be the left chain strip 6 and
  • the connecting port of the right chain 7 is sealed;
  • the left chain 6 is provided with a left clasp 13 and a left chain cloth 14, the left clasp 13 is provided with a left anti-insert tab 15 and a left hook 16;
  • the right chain 7 is provided with a right clasp 17 And the right link 18, the right clasp 17 is provided with a right anti-insert piece 19 and a right hook 20; the left hook 16 and the right hook 20 are located above the left chain groove 4 and the right chain groove 5;
  • the left anti-insert 15 Located at a position between each of the left clasps 13, the right anti-insert tab 19 is located
  • each left cuff 13 is snap-fitted with a right cuff 17 to close the left chain 6 and the right chain 7; the left anti-insert 15 of each left cuff 13 is located in each adjacent left chain
  • the left gap 21 between the buckles 13 is located at the right gap 22 position between each adjacent right buckle 17 of each right buckle 17.
  • the chain base 1 includes an upper chain plate 23, a chain link 24 and a lower chain plate.
  • the chain column 24 is connected to the upper chain plate 23 and the lower chain plate 25, or the chain column 24 and the upper chain plate 23 and the lower chain plate 25 are made of an integral material;
  • the outer casing 26 and the upper chain plate of the steel tape measure 3 23 is connected;
  • the upper chain plate 23 is provided with a guide wheel 34, and the steel coil 16 is connected to the chain sealing member 6 via the guide wheel 34;
  • the steel coil 11 is connected with the left buckle 13 and the right fastener 17, and the steel coil 11 is located Below the left hook 16 and the right hook 20, the steel coil 11 is hooked by the left hook 16 and the right hook 20;
  • the left chain slot 4 is bounded by the upper link 23 and the lower link 25 and the left side of the hinged column 24.
  • the left chain groove 4 is located on the left side of the hinged column 24; the right chain groove 5 is formed by the upper link plate 23 and the lower link plate 25 and the right side of the hinged column 24, and the right chain groove 5 is located on the right side of the hinged link 24.
  • the inner width of the left hook 16 and the right hook 20 is greater than the width of the steel reel 11, so that the steel reel 11 can be bent on the left hook 16 and the right bend Moving between the hooks 20; the inner width of the left hook 16 and the right hook 20 is greater than the width of the upper link 23, so that the upper link 23 can move between the left hook 16 and the right hook 20.
  • the distance from the left hook 27 of the left hook 16 to the right hook 28 of the right hook 20 is smaller than the width of the steel reel 11; the steel reel 11 Between the upper hook plate 23 and the left hook tail 27 of the left hook 16 and the right hook tail 28 of the right hook 20; the steel coil 11 cannot be separated from the left hook 15 and the right hook 20; a left buckle 13
  • the left gap 21 between the other left clasp 13 is greater than or equal to the width of the left anti-insert tab 15;
  • the right gap 22 between one right clasp 17 and the other right clasp 17 is greater than or equal to the right anti-insert tab 19
  • the width of the left cuff 13 is equal to the width of the right cuff 17; the width of the left anti-insert 15 is equal to the width of the right anti-insert 19; the width of the left cuff 13 is equal to the width of the left anti-insert 15
  • the width of the right clasp 17 is equal to the width of the right clasp 17
  • the steel tape measure 3 is provided with a dynamic lock hole 29, and the chain tail seal member 9 is provided with a fixed lock hole 30; when the lock is locked, the dynamic lock hole 29 and the fixed lock hole 30 are locked by the lock.
  • the single-layer closed zipper is used by connecting the left chain cloth 14 and the right chain cloth 18 to the trunk of the trunk or the left chain cloth 13 and the right chain cloth 18 to the bag opening of the luggage bag.
  • the handle 31 on the steel tape measure 3 is placed outside the luggage compartment or outside the luggage bag; when the luggage or the luggage bag is closed, the hand grip 31 pulls the steel tape measure 3 and the chain base 1 to move, and the chain base 1 follows the handle 31 to move the left chain. 6 is snapped together with the right chain 7 to close the mouth of the trunk or the pocket of the duffel bag; at the same time, the steel tape measure 3 moves along with the chain seat 1, and the steel reel 11 is pulled out as the steel tape measure 3 moves.
  • the drawn steel reel 11 is fastened to the upper side of the chain base 1 by the left hook 16 of the left clasp 13 and the right hook 20 of the right clasp 17, and the drawn steel reel 11 is located at the left chain 6 and the right chain.
  • the upper part of the connection port blocks the connection port between the left chain 6 and the right chain 7; when the illegal element is inserted into the chain 2 by the sharp weapon, the sharp object is blocked by the steel coil 11 and is difficult to insert; while the left chain 6 and the right chain 7 are engaged, Each left anti-insert blade 15 is moved to a position between one left cuff 13 and the other left cuff 13 And each right anti-insert piece 19 is moved to a position between one right cuff 17 and the other right cuff 17 to block the gap between one left cuff 13 and the other left cuff 13 by the left anti-insert piece 15 The right anti-insert piece 19 is used to block the gap between one right cuff 17 and the other right cuff 17 to increase the difficulty for the
  • the hand grip 31 pulls the outer casing 10 and the chain base 1 to move, and the upper chain plate 23 follows the handle 31 to move between the left hook 16 and the right hook 20, and the left clasp 13 and
  • the left anti-insert tab 15 is introduced by the left chain slot 4 of the chain base 1
  • the right clasp 17 and the right anti-insert tab 19 are introduced by the right chain slot 5 of the chain base 1, using the left chain slot 4 of the chain base 1 and the right chain slot.
  • the distance between the left hook tail 27 of the left hook 16 and the right hook tail 28 of the right hook 20 is smaller than the width of the steel coil 11 so that the steel coil 11 is buckled.
  • the left hook 16 and the right hook 20 are inside to prevent the steel reel 11 from coming off the left hook 16 and the right hook 20.
  • the steel tape measure 3 moves along with the chain base 1, and the upper chain plate 23 follows the handle 31 to move between the left hook 16 and the right hook 20, and the steel coil 11 is towed.
  • the length of the output is proportional to or equal to the length of the closure of the left chain 6 and the right chain 7; when the left chain 6 is separated from the right chain 7, the steel tape 3 moves in the opposite direction of the chain base 1, and the upper chain plate 23 follows the handle 33 in the left bend.
  • the hook 16 is moved between the hook 16 and the right hook 20, and the length of the steel tape 11 recovered into the steel tape 3 is proportional to or equal to the length of the left chain 6 and the right chain 7 separated; the steel tape is closed when the left chain 6 and the right chain 7 are closed.
  • the length of the drawn steel reel 11 is longer than the length of the steel reel 11 from which the steel tape 3 is pulled when the left chain 6 is separated from the right chain 7.

Landscapes

  • Tape Measures (AREA)
  • Slide Fasteners (AREA)

Abstract

单层封闭拉链，包括有链座(1)、链条(2)以及钢卷尺(3)，链条(2)包括有左链条(6)、右链条(7)、链头封口件(8)以及链尾封口件(9)，钢卷尺(3)包括有外壳(10)以及钢卷带(11)，钢卷带(11)位于链座(1)的上方，左链条(6)设有左链扣(13)以及左链布(14)，左链扣(13)设有左防插片(15)以及左弯钩(16)；右链条(7)设有右链扣(17)以及右链布(18)，右链扣(17)设有右防插片(19)以及右弯钩(20)；左防插片(15)位于每个左链扣(13)之间的位置，右防插片(19)位于每个右链扣(17)之间的位置，使用时，单层封闭拉链设于行李箱或者行李袋上，使左防插片(15)挡住一个左链扣(13)与另一个左链扣(13)之间的间隙，使右防插片(19)挡住一个右链扣(17)与另一个右链扣(17)之间的间隙，使钢卷尺(3)的钢卷带(11)封住链条(2)的入口，当不法分子利用利器插入拉链时，利器被钢卷带(11)挡住；增加不法分子用利器插开拉链的难度。

Description

单层封闭拉链 技术领域
本发明涉及一种安全拉链，特别是一种单层封闭拉链。
背景技术
目前，行李箱或者行李袋使用的拉链，由于拉链的强度不够，在使用的过程中，不法分子用利器插入拉链，就可以将拉链划开，一种防止拉链被划开的单层封闭拉链已成为提高拉链强度以及防盗的需要。
发明内容
本发明的目的是克服现有技术的不足，提供一种单层封闭拉链，用于提高拉链强度以及提高拉链的防盗性能。
本发明所采用的技术方案是：单层封闭拉链，包括有链座、链条以及钢卷尺，链条与链座连接，钢卷尺与链座以及链条连接；链座包括有左链槽以及右链槽，链条包括有左链条、右链条、链头封口件以及链尾封口件，左链条以及右链条与链头封口件以及链尾封口件连接，左链条与左链槽连接，右链条与右链槽连接，左链条与右链条连接；钢卷尺包括有外壳以及钢卷带，钢卷带的头端与链条的链头封口件连接，钢卷带与左链条以及右链条动配合连接；钢卷带位于链座的上方，钢卷带将左链条以及右链条的连接口封住；左链条设有左链扣以及左链布，左链扣设有左防插片以及左弯钩；右链条设有右链扣以及右链布，右链扣设有右防插片以及右弯钩；左弯钩以及右弯钩位于左链槽以及右链槽的上方；左防插片位于每个左链扣之间的位置，右防插片位于每个右链扣之间的位置，利用左防插片以及右防插片封住左链扣以及右链扣之间的间隙，增加不法分子插开链条的难度；当不法分子用利器插入链条时，利器被钢卷带挡住，使不法分子难以插开链条。
单层封闭拉链的使用方法是：使用时，将左链布以及右链布与行李箱的箱口连接，或者将左链布以及右链布与行李袋的袋口连接，并使钢卷尺上的拉手位于行李箱外或者行李袋外；封闭行李箱或者行李袋时，手抓拉手牵引钢卷尺以及链座移动，链座跟随拉手移动，使左链条与右链条咬合扣接在一起，将行李箱的箱口或者行李袋的袋口封闭；同时，钢卷尺跟 随链座移动，钢卷带随着钢卷尺移动被拉出，拉出的钢卷带被左链扣的左弯钩以及右链扣的右弯钩扣在链座的上面，被拉出的钢卷带位于左链条与右链条连接口的上面，挡住左链条与右链条连接口；当不法分子用利器插入链条时，利器被钢卷带挡住，难以插入；在左链条与右链条咬合的同时，每个左防插片移动到位于一个左链扣与另一个左链扣之间的位置，以及每个右防插片移动到位于一个右链扣与另一个右链扣之间位置，利用左防插片挡住一个左链扣与另一个左链扣之间的间隙，利用右防插片挡住一个右链扣与另一个右链扣之间的间隙，增加不法分子利用利器插开拉链的难度；打开行李箱的箱口或者行李袋的袋口时，用手通过拉手牵引链座反方向移动，链座跟随拉手移动，使闭合的左链条与右链条分开；同时，钢卷带跟随链座反方向移动，钢卷带在钢卷尺扭簧的弹力作用下收回钢卷尺内。
本发明的有益效果是：单层封闭拉链设置于行李箱或者行李袋上，单层封闭拉链设有左防插片、右防插片以及钢卷尺，利用左防插片挡住一个左链扣与另一个左链扣之间的间隙，利用右防插片挡住一个右链扣与另一个右链扣之间的间隙，利用钢卷尺的钢卷带封住链条的入口，当不法分子利用利器插入拉链时，利器被钢卷带挡住；增加不法分子用利器插开拉链的难度。
附图说明
图1是单层封闭拉链的结构示意图；
图2是左防插片以及右防插片的局部示意图；
图3是图1的左视图
图4是图3的俯视图。
具体实施方式
下面结合附图对本发明进行进一步的说明：
图1所示的单层封闭拉链的结构示意图、图2所示以及图2所示左防插片以及右防插片的局部示意图、图3所示图1的左视图以及图4所示图3的俯视图，单层封闭拉链，包括有链座1、链条2以及钢卷尺3，链条2与链座1连接，钢卷尺3与链座1以及链条2连接；链座1包括有左链槽4以及右链槽5，链条2包括有左链条6、右链条7、链头封口件8以及链尾封口件9，左链条6以及右链条7与链头封口件8以及链尾封口件 9连接，左链条6与左链槽4连接，右链条7与右链槽5连接，左链条6与右链条7连接；钢卷尺3包括有外壳10以及钢卷带11，钢卷带11的头端12与链条2的链头封口件8连接，钢卷带11与左链条6以及右链条7动配合连接；钢卷带11位于链座1的上方，钢卷带11将左链条6以及右链条7的连接口封住；左链条6设有左链扣13以及左链布14，左链扣13设有左防插片15以及左弯钩16；右链条7设有右链扣17以及右链布18，右链扣17设有右防插片19以及右弯钩20；左弯钩16以及右弯钩20位于左链槽4以及右链槽5的上方；左防插片15位于每个左链扣13之间的位置，右防插片19位于每个右链扣17之间的位置，利用左防插片15以及右防插片19封住左链扣13以及右链扣17之间的间隙，增加不法分子插开链条2的难度；当不法分子用利器插入链条2时，利器被钢卷带11挡住，使不法分子难以插开链条2。
为了避免不法分子利用利器插入每个左链扣13与另一个左链扣13之间的左间隙21，以及避免不法分子利用利器插入每个右链扣17与另一个右链扣17之间的右间隙22；每个左链扣13与一个右链扣17咬合连接，将左链条6与右链条7闭合在一起；每个左链扣13的左防插片15位于每个相邻左链扣13之间的左间隙21位置，每个右链扣17的右防插片19位于每个相邻右链扣17之间的右间隙22位置。
为了实施利用钢卷带11封住左链条6与右链条7的闭合口，同时也不影响其链条2的打开以及关闭，链座1包括有上链板23、合链柱24以及下链板25，合链柱24与上链板23以及下链板25连接，或者，合链柱24与上链板23以及下链板25由一体的材料构成；钢卷尺3的外壳26与上链板23连接；上链板23设有导轮34，钢卷带16经过导轮34与链头封口件6连接；钢卷带11与左链扣13以及右链扣17连接，钢卷带11位于左弯钩16以及右弯钩20的下方，利用左弯钩16以及右弯钩20钩住钢卷带11；左链槽4由上链板23以及下链板25与合链柱24的左边构成，左链槽4位于合链柱24的左边；右链槽5由上链板23以及下链板25与合链柱24的右边构成，右链槽5位于合链柱24的右边。
为了使钢卷带11能随链座1的移动而移动，左弯钩16与右弯钩20的内宽大于钢卷带11的宽度，使钢卷带11能于左弯钩16与右弯钩20之间移动；左弯钩16与右弯钩20的内宽大于上链板23的宽度，使上链板 23能于左弯钩16与右弯钩20之间移动。
为了避免钢卷带11离开左链扣13以及右链扣17，左弯钩16的左钩尾27到右弯钩20的右钩尾28的距离小于钢卷带11的宽度；钢卷带11位于上链板23与左弯钩16的左钩尾27以及右弯钩20的右钩尾28之间；使钢卷带11不能脱离左弯钩15以及右弯钩20；一个左链扣13与另一个左链扣13之间的左间隙21大于或者等于左防插片15的宽度；一个右链扣17与另一个右链扣17之间的右间隙22大于或者等于右防插片19的宽度；左链扣13的宽度与右链扣17的宽度相等；左防插片15的宽度与右防插片19的宽度相等；左链扣13的宽度与左防插片15的宽度相等，右链扣17的宽度与右防插片19的宽度相等；左链扣13与左防插片15固定连接，或者，左链扣13与左防插片15由一体的材料构成；右链扣17与右防插片19固定连接，或者，右链扣17与右防插片19由一体的材料构成。
为了利用锁具锁住链座1，钢卷尺3设有动锁孔29，链尾封口件9设有定锁孔30；上锁时，利用锁具锁住动锁孔29以及定锁孔30。
单层封闭拉链的使用方法是：使用时，将左链布14以及右链布18与行李箱的箱口连接，或者将左链布13以及右链布18与行李袋的袋口连接，并使钢卷尺3上的拉手31位于行李箱外或者行李袋外；封闭行李箱或者行李袋时，手抓拉手31牵引钢卷尺3以及链座1移动，链座1跟随拉手31移动，使左链条6与右链条7咬合扣接在一起，将行李箱的箱口或者行李袋的袋口封闭；同时，钢卷尺3跟随链座1移动，钢卷带11随着钢卷尺3移动被拉出，拉出的钢卷带11被左链扣13的左弯钩16以及右链扣17的右弯钩20扣在链座1的上面，被拉出的钢卷带11位于左链条6与右链条7连接口的上面，挡住左链条6与右链条7连接口；当不法分子用利器插入链条2时，利器被钢卷带11挡住，难以插入；在左链条6与右链条7咬合的同时，每个左防插片15移动到位于一个左链扣13与另一个左链扣13之间的位置，以及每个右防插片19移动到位于一个右链扣17与另一个右链扣17之间位置，利用左防插片15挡住一个左链扣13与另一个左链扣13之间的间隙，利用右防插片19挡住一个右链扣17与另一个右链扣17之间的间隙，增加不法分子利用利器插开拉链的难度；打开行李箱的箱口或者行李袋的袋口时，用手通过拉手31牵引链座1反方向 移动，链座1跟随拉手31移动，使闭合的左链条6与右链条7分开；同时，钢卷带11跟随链座1反方向移动，钢卷带11在钢卷尺3扭簧的弹力作用下收回钢卷尺3内。
防插拉链封闭行李箱或者行李袋时，手抓拉手31牵引外壳10以及链座1移动，上链板23跟随拉手31于左弯钩16与右弯钩20之间移动，左链扣13以及左防插片15由链座1的左链槽4导入，右链扣17以及右防插片19由链座1的右链槽5导入，利用链座1的左链槽4以及右链槽5使左链条6的左链扣13与右链条7的右链扣17咬合连接；以及左防插片15跟随左链扣13移动到一个左链扣13与另一个左链扣13之间的左间隙21的位置；右防插片19跟随右链扣17移动到一个右链扣17与另一个右链扣17之间的右间隙22的位置；同时，钢卷尺3跟随链座1移动，钢卷带11随着钢卷尺3移动被拉出，拉出的钢卷带11被左弯钩16的左钩尾27以及右弯钩20的右钩尾28扣在左弯钩16以及右弯钩20内。
左链条6与右链条7咬合扣接在一起时，左弯钩16的左钩尾27与右弯钩20的右钩尾28距离小于钢卷带11的宽度，使钢卷带11被扣在左弯钩16与右弯钩20内，以避免钢卷带11脱离左弯钩16以及右弯钩20。
左链条6与右链条7咬合扣接在一起时，钢卷尺3跟随链座1移动，上链板23跟随拉手31于左弯钩16与右弯钩20之间移动，钢卷带11被牵引出的长度与左链条6与右链条7闭合的长度成正比或者相等；左链条6与右链条7分开时，钢卷尺3跟随链座1反方向移动，上链板23跟随拉手33于左弯钩16与右弯钩20之间移动，钢卷带11回收到钢卷尺3内的长度与左链条6与右链条7分开的长度成正比或者相等；左链条6与右链条7闭合时钢卷尺3被拉出的钢卷带11长度大于左链条6与右链条7分开时钢卷尺3被拉出的钢卷带11长度。
链条2闭合时，链座1向链尾封口件9方向移动移动，链条2随着链座1的移动而不断闭合；链条2分开时，链座1向链头封口件8方向移动移动，链条2随着链座1的移动而不断分开；每个左链扣13的左防插片15与相邻的另一个左链扣13动配合连接，右链扣17的右防插片19与相邻的另一个右链扣17动配合连接；导轮34设有铰轴32，上链板23设有铰孔33，导轮27与上链板23的铰孔33铰接。

Claims (4)

  1. 单层封闭拉链，其特征在于：所述的单层封闭拉链包括有链座(1)、链条(2)以及钢卷尺(3)，链条(2)与链座(1)连接，钢卷尺(3)与链座(1)以及链条(2)连接；链座(1)包括有左链槽(4)以及右链槽(5)，链条(2)包括有左链条(6)、右链条(7)、链头封口件(8)以及链尾封口件(9)，左链条(6)以及右链条(7)与链头封口件(8)以及链尾封口件(9)连接，左链条(6)与左链槽(4)连接，右链条(7)与右链槽(5)连接，左链条(6)与右链条(7)连接；钢卷尺(3)包括有外壳(10)以及钢卷带(11)，钢卷带(11)的头端(12)与链条(2)的链头封口件(8)连接，钢卷带(11)与左链条(6)以及右链条(7)动配合连接；钢卷带(11)位于链座(1)的上方，钢卷带(11)将左链条(6)以及右链条(7)的连接口封住；左链条(6)设有左链扣(13)以及左链布(14)，左链扣(13)设有左防插片(15)以及左弯钩(16)；右链条(7)设有右链扣(17)以及右链布(18)，右链扣(17)设有右防插片(19)以及右弯钩(20)；左弯钩(16)以及右弯钩(20)位于左链槽(4)以及右链槽(5)的上方；左防插片(15)位于每个左链扣(13)之间的位置，右防插片(19)位于每个右链扣(17)之间的位置，利用左防插片(15)以及右防插片(19)封住左链扣(13)以及右链扣(17)之间的间隙，增加不法分子插开链条(2)的难度；当不法分子用利器插入链条(2)时，利器被钢卷带(11)挡住，使不法分子难以插开链条(2)。
  2. 根据权利要求1所述的单层封闭拉链，其特征在于：所述的每个左链扣(13)与一个右链扣(17)咬合连接，将左链条(6)与右链条(7)闭合在一起；每个左链扣(13)的左防插片(15)位于每个相邻左链扣(13)之间的左间隙(21)位置，每个右链扣(17)的右防插片(19)位于每个相邻右链扣(17)之间的右间隙(22)位置；链座(1)包括有上链板(23)、合链柱(24)以及下链板(25)，合链柱(24)与上链板(23)以及下链板(25)连接，或者，合链柱(24)与上链板(23)以及下链板(25)由一体的材料构成；钢卷尺(3)的外壳(26)与上链板(23)连接；上链板(23)设有导轮(34)，钢卷带(16)经过导轮(34)与链头封口件(6)连接；钢卷带(11)与左链扣(13)以及右链扣(17)连接，钢卷带(11)位于左弯钩(16)以及右弯钩(20)的下方，利用左弯钩(16)以及右弯钩(20)钩住钢卷带(11)。
  3. 根据权利要求2所述的单层封闭拉链，其特征在于：所述的左链槽(4)由上链板(23)以及下链板(25)与合链柱(24)的左边构成，左链槽(4)位于合链柱(24)的左边；右链槽(5)由上链板(23)以及下链板(25)与合链柱(24)的右边构成，右链槽(5)位于合链柱(24)的右边；左弯钩(16)与右弯钩(20)的内宽大于钢卷带(11)的宽度，使钢卷带(11)能于左弯钩(16)与右弯钩(20)之间移动；左弯钩(16)与右弯钩(20)的内宽大于上链板(23)的宽度，使上链板(23)能于左弯钩(16)与右弯钩(20)之间移动；左弯钩(16)的左钩尾(27)到右弯钩(20)的右钩尾(28)的距离小于钢卷带(11)的宽度；钢卷带(11)位于上链板(23)与左弯钩(16)的左钩尾(27)以及右弯钩(20)的右钩尾(28)之间；使钢卷带(11)不能脱离左弯钩(15)以及右弯钩(20)。
  4. 根据权利要求1所述的单层封闭拉链，其特征在于：所述的一个左链扣(13)与另一个左链扣(13)之间的左间隙(21)大于或者等于左防插片(15)的宽度；一个右链扣(17)与另一个右链扣(17)之间的右间隙(22)大于或者等于右防插片(19)的宽度；左链扣(13)的宽度与右链扣(17)的宽度相等；左防插片(15)的宽度与右防插片(19)的宽度相等；左链扣(13)的宽度与左防插片(15)的宽度相等，右链扣(17)的宽度与右防插片(19)的宽度相等。
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