CN100460622C - Ball lock and key combination for preventing being opened by tool - Google Patents

Ball lock and key combination for preventing being opened by tool Download PDF

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Publication number
CN100460622C
CN100460622C CN 200510122040 CN200510122040A CN100460622C CN 100460622 C CN100460622 C CN 100460622C CN 200510122040 CN200510122040 CN 200510122040 CN 200510122040 A CN200510122040 A CN 200510122040A CN 100460622 C CN100460622 C CN 100460622C
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pin
lock
anti
cylinder
key
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CN 200510122040
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CN1776166A (en )
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江 李
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江 李
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Abstract

防工具开启弹子锁和钥匙组合,由锁芯、上下弹子、弹簧、新型钥匙、滑块组成。 Anti-opening tool pin lock and key combination, the key cylinder, the upper and lower pin, spring, new keys, sliders composition. 是在普通弹子锁的基础上把锁芯钥匙孔设计为“”型,在锁芯第一排弹子前增加一组防拨弹子,其直径大于其它组的弹子与“”型锁芯钥匙孔的底边相等或大于底边,防拨下弹子长度上至锁芯孔口,下至锁芯钥匙孔底部。 Is based on the ordinary cylinder lock cylinder keyway is designed to "" type, adding a set of anti-allocated before the plug pin in the first row of pin, the pin diameter greater than "" key cylinder type other groups is equal to or larger than the base bottom hole, the pin length of the anti-allocated to the cylinder bore, the cylinder to the bottom of the keyway. 新型前“⊥”后“”型钥匙中后部设有与防拨弹子直径相同的透孔,当把钥匙插入锁芯后,防拨弹子落入钥匙透孔中,锁可以打开。 After the new front "⊥" in the rear portion of the key "" type pin is provided with anti-allocated the same diameter through hole, when the key is inserted into the lock cylinder, ball falls against dials through the key hole, the lock can be opened. 如其它工具类物体插入锁芯钥匙孔内,防拨弹子会被抬升,锁被锁死。 Other objects, such as tools into the lock cylinder key hole, preventing the balls are lifted aside, the lock is locked. “”型锁芯孔两侧斜臂与弹子组不在一条直线上,可防现有开锁工具插入。 "" type cylinder with pin holes on both sides of the swash arm group not a straight line, the conventional anti-lock tool can be inserted. 锁芯防拨弹子组与普通弹子组设计为两截可防强行开锁。 Anti-cylinder group and common pin DIP pin group in two parts designed to be anti-lock force. 在锁芯弹子孔口设凹槽和滑块,可误导工具开锁。 Pin aperture disposed in the plug recess and a slider, the tool may be misleading unlocking.

Description

防工具开启的弹子锁和钥匙组合 Anti-tool open tumbler lock and key combination

技术领域本发明涉及一种弹子机械锁, 一种能防御万能钥匙或其它开锁工具开锁的弹子锁和钥匙组合。 Technical Field The present invention relates to a mechanical lock pin A defense can master key or other tool to unlock the lock pin lock and key combinations.

背景技术普通弹子锁由于设计比较科学、简单、实用,所以一直使用至今,但其保密性和安全性较差,很难防范社会上一些掌握开锁技术的不法之人。 BACKGROUND ordinary tumbler lock due to design more scientific, simple, practical, it is still in use, but its confidentiality and security is poor, it is difficult to prevent some unscrupulous people to master the technology to unlock the community.

发明内容本发明的目地在于提供一种防工具开启的弹子锁和钥匙组合,它可以有效防止现有开锁工具、万能钥匙开锁。 SUMMARY object of the present invention is to provide a tool for preventing the opening spring lock and key combination, which can effectively prevent the tools for unlocking the existing master key lock.

一、 一种防工具开启的弹子锁和钥匙组合,包括:锁体、锁芯、 上下弹子、弹簧、钥匙、滑±央,其特征在于:锁芯钥匙孔设计为"W形状,在锁芯第一排弹子组前方增加一组防拨弹子,其直径大于其它普通组的弹子,防拨弹子直径与"U/"型钥匙孔的底边相等或大于底边,防拨弹子与孔径间的精密度高于其它弹子组,防拨下弹子的长度:上端与锁芯弹子孔口齐平,下端至"U/"型锁芯钥匙孔底部,钥匙设计成前部为"丄"型,中间立面设牙花,后部为"W"型,开有长条形透孔,当钥匙插入锁芯后,这时普通弹子被钥匙牙花抬起,只有防拨弹子通过钥匙透孔仍能落到锁芯底部,所有下弹子上端与锁体钥匙孔壁平齐,此时锁可以打开;用工具开锁时,由于防拨弹子的阻挡,工具无法接触到普通弹子;通过锁芯钥匙孔两侧斜孔也不能将锁打开,因为:弹子和斜孔不在 First, an anti-open tool pin lock and key combination, comprising: a lock body, cylinder, ball up and down, springs, keys, sliding ± center, wherein: the lock cylinder keyway is designed to "W shape, the cylinder the first row in front of a set of pin group increased anti-allocated ball diameter larger than other common pin group, the diameter of the pin against dials "U /" key hole type base equal to or greater than the bottom, anti-allocated between the pin and the aperture precision higher than the other pin group, the pin length of the anti-allocated: the upper end of the plug pin aperture flush with the lower end to the "U /" type cylinder keyway bottom, front portion of the key is designed to "Shang" type, intermediate tooth facade provided, the rear of "W" type, elongated through-holes are opened, when the key is inserted into the lock cylinder, when the general key pin whose teeth are lifted, only the anti-allocated by a key pin through hole still fall to the bottom cylinder, all of the upper lock pin and the hole wall is flush with the key, the lock can be opened at this time; unlocking jig, since the anti-dial blocking pin, the tool can not access to the common ball; by oblique sides of the lock cylinder keyway nor can lock hole opened because: marbles and are not inclined holes 一条直线上,为防止先抬起防拨弹子,再拨动普通弹子的开锁方法,在防拨弹子被抬升后,防拨下弹子上端已进入锁体内,此时就是有开锁扭力的存在,普通弹子虽能被工具抬起,由于防拨弹子与孔径间的精密度高于其它弹子组,却无法与孔壁接触产生摩擦力,只要工具一离开弹子就会随之落下, 亦不能将锁打开;在锁芯弹子孔口开"。 A straight line, in order to prevent anti-allocated first lifting pin, an ordinary method and then toggle lock pin, the pin in the anti-dialing is lifted, the upper end of the pin against dials the lock body has entered, and at that point the presence unlocking torque, Common although the pin tool can be lifted, since the anti-dial precision between the pin and the pin aperture than the other groups, but not in contact with the hole wall frictional force is generated, as long as the tool will follow a ball fall away, nor can unlock ; open orifice in the cylinder marbles. " "型凹槽,槽内放置型滑块,滑块 "Shaped grooves, groove type is placed as the slider

长度短于凹槽,滑块大头端与凹槽大头端对齐后,在锁芯弹子孔相同位置上,在滑块上开孔,假设有一种特制工具插入锁芯没有抬起防拨弹子,又能拨动其它弹子,在其它组弹子被拨弄抬升过程中,当下弹子上端与凹槽孔口齐平时,在开锁扭力作用下,锁芯会移动,锁即被锁死。 After the bulk of the recess is aligned with the length of the short side in the groove, the large end of the slider, pin holes in the same position on the cylinder, the slider opening, assuming there is a special tool into the lock cylinder without raising anti-allocated marbles, and other balls can be struck, the fiddle in the other groups during the lifting pin, the upper end of the lower pin aperture flush with the recess, in the unlocking action of the torsion, the key cylinder will move, i.e. the lock locked.

二、为进一步增强安全性,钥匙立面牙花设计成双排,增加密匙量;把防拨弹 Second, in order to further enhance security, the key facade Tooth designed double, increasing the amount of keys; preventing the pluck

子组与普通弹子组分成两截设计,中间用小于其它普通组弹子强度的销子相连接,防砸、钻、撬强行开锁。 Subset group is divided into two parts with a common pin design, with the middle pin strength less than other common pin connected to the group, anti-smash, drill, pry forced unlocking.

三、 为进一步增强安全性,钥匙透孔和防拨弹子组,多组设置在除最后一排弹子组外的任何弹子组位置上。 Third, in order to further enhance security, a key anti-allocated through holes and pin assemblies, multiple sets of pin assemblies disposed at any position except for the last row of the pin assemblies.

四、 为进一步增强安全性,在锁芯弹子孔口设计的凹槽和滑块,部分或全部设置在除防拨弹子组以外其它弹子组上。 Fourth, in order to further enhance security, the design of the aperture in the plug pin and the slider groove, provided at some or all other than the anti-pin DIP pin group other groups.

附图说明在普通弹子锁的基础上,本发明的技术解决方案如下- BRIEF DESCRIPTION based on the common cylinder lock on the technical solutions of the present invention are as follows -

图1:锁芯钥匙孔设计为"、V"形状。 Figure 1: lock cylinder keyway is designed to ", V" shape.

图2:锁体侧面剖视图。 Figure 2: a side sectional view of the lock body. 锁芯口端设一组大孔径,直落锁芯钥匙孔底部的 Cylinder inlet end is provided a plurality of large aperture, the bottom cylinder keyway straight sets of

防拨弹子组。 Anti dial pin assemblies.

图3:钥匙正面。 Figure 3: front keys. 前"丄"中间立面设牙花,后"U/"型,开有长条形 Front "Shang" Tooth disposed intermediate elevation, the "U /" type elongated opened

透孔的钥匙。 Through the key hole.

图4:钥匙侧面。 Figure 4: Key side. 图5:钥匙背面。 Figure 5: Back key.

图6:在锁芯侧面防拨弹子组后其它弹子组弹子孔口处,部分或全部开有"a"型凹槽,内设与凹槽形状一致,并可左右移动的滑块。 Figure 6: Other ball pin orifice groups, partially or fully opened "a" groove type, equipped with the same groove shape, and left and right movement of the slider in the cylinder of a lateral pin set aside.

图7:滑块正面。 Figure 7: Slide the front.

图8:滑块侧面立体图。 Figure 8: a perspective side view of the slider.

本发明的防工具开启弹子锁和钥匙组合基本保持了传统机械锁的结构,简单可靠、安装使用方便、生产成本和技术没有明显差别。 Opening prevention tool of the invention tumbler lock and key combination of the basic structure of a conventional mechanical lock retaining a simple, reliable, easy to install, cost and production techniques have not significant differences.

具体实施方式下面结合附图对原理及实施作进一步的说明: DETAILED DESCRIPTION OF THE DRAWINGS The principle and implementation is further described:

一、防工具开启弹子锁和钥匙组合其特征是:1)锁芯钥匙孔设计为"U/"型状; 2)在锁芯第一排弹子组前方增加一组防拨弹子4,其直径大于其它组的弹子与"U/" 型钥匙孔的底边相等或大于底边,防拨弹子与孔径间的精密度高于其它弹子组。 An anti-opening tool pin lock and key combination thereof wherein: 1) cylinder keyway is designed to "U /" shape; 2) in front of the first row of the plug pin assemblies adding a set of 4 anti-allocated ball having a diameter group than the other pin and the "U /" key hole type base equal to or greater than the bottom, anti-allocated between the pin and the aperture precision than the other pin groups. 防拨下弹子6长度:上端与锁芯弹子孔口齐平,下端至"My"型锁芯钥匙孔底部。 The pin 6 against dials length: the upper end of the plug pin aperture flush with the lower end to the bottom of cylinder keyhole "My" type. 3)新颖的钥匙式样:钥匙设计前部为"丄"型,中间立面设牙花,后部为"M/"型,开有长条形透孔。 3) Novel style keys: the key design of the front portion is "Shang" type, whose teeth disposed intermediate facade, the rear of "M /" type elongated through hole is opened. 当钥匙3插入锁芯后,防拨弹子仍能落到锁芯底部,正好与透孔吻合,这 When the key into the lock cylinder 3, still preventing the balls fall to the bottom dial key cylinder, and through-holes are aligned exactly, this

时与普通弹子锁一样,锁可以开启。 Like when ordinary tumbler lock, the lock can be opened. 如有开锁工具等物体插入锁芯孔内,防拨下弹子 If an object such as unlocking tool into the lock cylinder bore, the pin against dials

6就会被抬升,下弹子上端进入锁体l孔内,此时锁被锁死。 6 will be lifted, the upper end of the lock pin into the hole of l, when the lock is locked. 实际上防拨弹子起的是 In fact, anti-allocated it is played marbles

闹门的作用:防拨弹子落下锁可开启,防拨弹子抬起锁被关闭。 Downtown Door role: anti-lock can be turned down to dial marbles, marbles dial anti-lift lock is closed.

为防止采取先抬起防拨弹子,再拨动其它弹子的开锁方法,设计时防拨弹子与孔 In order to prevent anti-allocated marbles take the first lift, then toggle unlock method other marbles, marbles and anti-dial design hole

径间的精度高于其它弹子组,在锁芯2被扭转时,防拨弹子先与孔壁接触,其它弹子 Accuracy between the pin diameter than the other groups, in the cylinder 2 is twisted, preventing contact with the first pin dial hole wall, the other pin

被抬升后亦产生不了弹子与孔壁之间的摩擦力,因而无法固定弹子。 After being lifted also not produce a frictional force between the pin and the hole wall, and therefore can not be fixed pin. 如果需要进一步加强防盗性能,可以把锁芯防拨弹子组与普通弹子组设计为两截,两截之间用两个销子相连接,销子强度低于普通弹子组弹子,防拨弹子组部分,应采用高强度材料制造, 当撬或钻锁芯时,销子就会断裂,只有防拨弹子组一截锁芯随之转动,从而达到防盗开目的。 If further enhance convenience, the anti-lock cylinder can be set aside and the common pin pin assemblies designed in two parts, with two pins is connected between the two parts, strength than ordinary pin pin pin group, the anti-dial pin assemblies part, should be used for producing high strength materials, or when pry-drilling, the pin will break, only the pin set aside anti-length cylinder for rotation therewith, so as to achieve the purpose of security apart.

二、在锁芯弹子孔口设置弧型凹槽和滑块,滑块中间设弹子孔,凹槽9深度等于滑块厚度约3mm左右,凹槽长于滑块,使滑块可以在凹槽内左右移动,以凹槽和滑块的弹孔中线为界,设计成凹槽和滑块的一端一侧比另一侧长两个弹子孔形状。 Second, the curved recess is provided in the cylinder and the slide pin aperture disposed intermediate slide pin hole, the groove 9 of the slider thickness about equal to the depth of 3mm, a groove is longer than the slide, so that the slider may be in the recess move around, bullet holes to the center line as a boundary and the slider groove, one end of the groove and is designed to slide in two side than the other side of the long pin hole shape. 假设物 The assumption was

体插入锁芯没有抬起防拨弹子,又可以拨动其它弹子,在其它组弹子被拨弄抬升过程中,当下弹子上端与凹槽孔口齐平时,因上弹子5下端还在滑块孔内,在开锁扭力作用下,锁芯会有一转动,锁被锁死。 Inserted pin cylinder without raising anti-allocated, but also other toggle pin, is fiddle in the other groups during the lifting pin, the upper end of the lower pin aperture flush with the groove, because the pin hole 5 slide still lower , under action of the torsion lock, there will be a rotation of the lock cylinder, the lock is locked.

设计技术要求:l)为预防强行开锁,防拨下弹子适宜用高硬度钢性材料制造。 Design requirements: l) to prevent the unlocking force, preventing the balls suitably allocated for producing the steel material of high hardness. 2) 防拨下弹子下端设计为楔型,以利于钥匙插入和拔出。 2) anti-allocated at the lower end of pin designed as a wedge, to facilitate insertion and withdrawal of the key. 中部两侧设有一对定位销7, Provided on both sides of the middle pair of positioning pins 7,

锁芯防拨弹子孔处前后各开一个定位销滑道8,防止防拨下弹子转动。 Anti-allocated before and after the cylinder hole opening of a ball positioning pins slide 8, to prevent the anti-rotation pin under the dial. 3)锁芯钥匙孔 3) cylinder keyhole

定位在锁芯截面中心线以下为宜,这样可以增加下弹子长度,不仅可以扩大密匙量, Positioned below the center line in the cross section of the cylinder is appropriate, which can increase the length of the pin, the amount can not only expand the key,

还可防范用口香糖之类物质开锁。 It can also be used to prevent unlocking chewing gum like substance. 4)在锁芯内无钥匙情况下普通下弹子上端设计在凹槽孔口以内,保证下弹子被抬升过程中上端口必经过凹槽孔口。 4) the upper end of the pin under normal keyless lock cylinder in the case of the design within the recess aperture to ensure that the recess opening through ports must be lifted during the pin. 5)因滑块短于凹槽, 为防止在钥匙开锁锁芯旋转时,普通上弹子落入凹槽内,把凹槽和滑块设计成"a" 型,这样锁芯转动时,上弹子可沿滑块和凹槽内边线顺利移过凹槽。 5) due to the shorter slide groove, when the key lock to prevent rotation of the plug, the ball falls common recess, the recess and the slider is designed to "a" type, so that the cylinder rotates, the pin It can be smoothly moved through grooves along the slider and the inner groove edge. 另外可把凹槽和滑块部分或全部设计在除防拨弹子组外其它弹子组上。 Also the grooves and can slide in addition to some or all of the design on the outer dial anti-pin pin group of other groups. 6)前"丄"后"M7"型后部开透孔的钥匙型状设计,后部开孔后,两侧斜臂起重要连接作用。 After 6) before "Shang" rear "M7" open type through hole key shape design, the rear opening, both sides of the swash arm play an important role in connecting. 前部"丄"型设计目的是阻止开锁工具从锁芯两侧斜臂孔插入拨动弹子。 Front "Shang" type designed to prevent the tools for unlocking the plug from the oblique sides of the arm insertion hole toggle pin. 立面牙花也可设计成双排,增加密匙量。 Tooth facade can also be designed as a double, increasing the amount of keys. 钥匙透孔和防拨弹子组亦可设计在除最后一排弹子组外的任何弹子组上, 并可多组设置。 And anti-dial key pin through hole group can be designed in any pin group except the last row of pin assemblies, and a plurality of sets disposed.

本发明中防拨弹子组及钥匙与凹槽、滑块两部分内容既是一个整体,也可以分别 In the present invention the anti-dial key and pin assemblies and recess, a slider two parts both integral, respectively, may be

实施应用。 Implementation of the application.

Claims (4)

  1. 1、一种防工具开启的弹子锁和钥匙组合,包括:锁体、锁芯、上下弹子、弹簧、钥匙、滑块,其特征在于:锁芯钥匙孔设计为“ ”形状,在锁芯第一排弹子组前方增加一组防拨弹子,其直径大于其它普通组的弹子,防拨弹子直径与“ ”型钥匙孔的底边相等或大于底边,防拨弹子与孔径间的精密度高于其它弹子组,防拨下弹子的长度:上端与锁芯弹子孔口齐平,下端至“ ”型锁芯钥匙孔底部,钥匙设计成前部为“ ”型,中间立面设牙花,后部为“ ”型,开有长条形透孔,当钥匙插入锁芯后,这时普通弹子被钥匙牙花抬起,只有防拨弹子通过钥匙透孔仍能落到锁芯底部,所有下弹子上端与锁体钥匙孔壁平齐,此时锁可以打开;用工具开锁时,由于防拨弹子的阻挡,工具无法接触到普通弹子;通过锁芯钥匙孔两侧斜孔也不能将锁打开,因为:弹子和 1, an anti-open tool pin lock and key combination, comprising: a lock body, cylinder, ball up and down, springs, keys, sliders, characterized in that: the lock cylinder keyway is designed to "" shape, and the first cylinder a row in front of a set of pin group increased anti-allocated ball diameter larger than other common pin group, the diameter of the pin against dials "" keyhole type base equal to or greater than the bottom, anti-allocated between the pin and the precision high aperture the other pin group, the pin length of the anti-allocated: upper aperture flush with the plug pin, to the lower end "" bottom keyway cylinder type, front portion of the key is designed to "set tooth" type intermediate facade, to the rear "," type elongated through holes are opened, when the key is inserted into the lock cylinder, when the general key pin whose teeth are lifted, only the anti-allocated by a key through hole still ball fall to the bottom cylinder, all the upper end of the pin and the hole wall is flush with the lock key, the lock can be opened at this time; unlocking jig, since the anti-dial blocking pin, the tool can not access to the common ball; cylinder through a key hole slant holes on both sides can not open the lock, because: marbles and 孔不在一条直线上,为防止先抬起防拨弹子,再拨动普通弹子的开锁方法,在防拨弹子被抬升后,防拨下弹子上端已进入锁体内,此时就是有开锁扭力的存在,普通弹子虽能被工具抬起,由于防拨弹子与孔径间的精密度高于其它弹子组,却无法与孔壁接触产生摩擦力,只要工具一离开弹子就会随之落下,亦不能将锁打开;在锁芯弹子孔口开“ ”型凹槽,槽内放置“ ”型滑块,滑块长度短于凹槽,滑块大头端与凹槽大头端对齐后,在锁芯弹子孔相同位置上,在滑块上开孔,假设有一种特制工具插入锁芯没有抬起防拨弹子,又能拨动其它弹子,在其它组弹子被拨弄抬升过程中,当下弹子上端与凹槽孔口齐平时,在开锁扭力作用下,锁芯会移动,锁即被锁死。 Holes not aligned, in order to prevent anti-allocated first lifting pin, an ordinary method and then toggle lock pin, the pin in the anti-dialing is lifted, the upper end of the pin against dials the lock body has entered, and at that point the presence of the unlocking torque , although ordinary pin tool can be lifted, since the anti-dial precision between the pin and the pin aperture than the other groups, but not in contact with the hole wall frictional force is generated, as long as the tool will follow a ball fall away, nor can open the lock; open aperture in the plug pin "" shaped groove, the groove is placed "" the slider, the slider length is shorter than the groove, and the big end of the slider recess aligned after the large end, the cylinder pin hole the same position, the opening in the slider, it is assumed there is a special tool into the lock cylinder without raising anti-allocated ball, but also other toggle pin, is fiddle in the other groups during the lifting pin, the upper end of the lower pin holes with the recess flush port, under action of the torsion lock, the key cylinder will move, i.e. the lock locked.
  2. 2、如权利要求l所述的防工具开启的弹子锁和钥匙组合,其特征在于: 为进一步增强安全性,钥匙立面牙花设计成双排,增加密匙量;把防拨弹子组与普通弹子组分成两截设计,中间用小于其它普通组弹子强度的销子相连接,防砸、钻、撬强行开锁。 2, as the opening prevention tool of l tumbler lock and key combination as claimed in claim, wherein: To further enhance security, the key facade Tooth designed double, increasing the amount of the key; and the anti-allocated pin group normal group is divided into two parts pin design, with the middle pin strength less than other common pin connected to the group, anti-smash, drill, pry forced unlocking.
  3. 3、如权利要求1所述的防工具开启的弹子锁和钥匙组合,其特征在于:为进一步增强安全性,钥匙透孔和防拨弹子组,多组设置在除最后一排弹子组外的任何弹子组位置上。 3. A cylinder lock and key combination as claimed in claim 1 anti-open tool, characterized in that: in order to further enhance security, a key anti-allocated through holes and pin assemblies, a plurality of sets disposed on an outer group except the last row of pin any pin assemblies position.
  4. 4、如权利要求l所述的防工具开启的弹子锁和钥匙组合,其特征在于: 为进一步增强安全性,在锁芯弹子孔口设计的凹槽和滑块,部分或全部设置在除防拨弹子组以外其它弹子组上。 4. The tool of claim l preventing opening of said pin lock and key combination, characterized in that: in order to further enhance security, the aperture in the plug pin and the slider groove design, is provided in addition to some or all of the anti- group other than pin DIP pin group.
CN 200510122040 2005-11-30 2005-11-30 Ball lock and key combination for preventing being opened by tool CN100460622C (en)

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Application Number Priority Date Filing Date Title
CN 200510122040 CN100460622C (en) 2005-11-30 2005-11-30 Ball lock and key combination for preventing being opened by tool

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CN100460622C true CN100460622C (en) 2009-02-11

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Publication number Priority date Publication date Assignee Title
CN106049993A (en) * 2016-08-15 2016-10-26 陶敬哲 Lock with latching function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2206819Y (en) 1994-06-14 1995-09-06 郑金国 Anti-turn spring lock
US5582050A (en) 1991-12-19 1996-12-10 Assa Ab Cylinder lock-key-combination, a key therefor and a method of producing the key from a key blank
CN2496980Y (en) 2001-09-06 2002-06-26 方楚伟 Anti-pulling cylinder lock head
CN1603558A (en) 2004-11-12 2005-04-06 张金洲 Theftproof lock with key sealing sheet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5582050A (en) 1991-12-19 1996-12-10 Assa Ab Cylinder lock-key-combination, a key therefor and a method of producing the key from a key blank
CN2206819Y (en) 1994-06-14 1995-09-06 郑金国 Anti-turn spring lock
CN2496980Y (en) 2001-09-06 2002-06-26 方楚伟 Anti-pulling cylinder lock head
CN1603558A (en) 2004-11-12 2005-04-06 张金洲 Theftproof lock with key sealing sheet

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