CN2506740Y - 具有高抗拉强度锁芯的门锁 - Google Patents

具有高抗拉强度锁芯的门锁 Download PDF

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Publication number
CN2506740Y
CN2506740Y CN01257963U CN01257963U CN2506740Y CN 2506740 Y CN2506740 Y CN 2506740Y CN 01257963 U CN01257963 U CN 01257963U CN 01257963 U CN01257963 U CN 01257963U CN 2506740 Y CN2506740 Y CN 2506740Y
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China
Prior art keywords
lock
lock core
core
metal anti
tensile
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Expired - Fee Related
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CN01257963U
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English (en)
Inventor
阮家强
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Huayi Hardware Product Co., Ltd., Taishan
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Toi Shan Wah Yat Hardware Co Ltd
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Priority to CN01257963U priority Critical patent/CN2506740Y/zh
Application granted granted Critical
Publication of CN2506740Y publication Critical patent/CN2506740Y/zh
Priority to US10/252,778 priority patent/US20030089148A1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04—Casings of cylinder locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7588—Rotary plug
    • Y10T70/7593—Sliding tumblers
    • Y10T70/7599—Transverse of plug
    • Y10T70/7605—Pin tumblers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7751—With ball or roller

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

一种具有高抗拉强度锁芯的门锁,该门锁包括锁体10、装在锁体内的锁芯20及分别装在锁体和锁芯内的弹子组30,其特征在于,在锁芯的外表面与锁体上的锁芯孔内表面之间嵌入至少一粒可防止锁芯沿轴向拉出的金属抗拉体40,该金属抗拉体可以是球状体、柱状体或块状体。在锁芯20外表面上设有供金属抗拉体40嵌入的凹陷21,在锁体10的锁芯孔内表面上与所述凹陷的对应位置开有一供金属抗拉体40嵌入的环形凹槽11。金属抗拉体40由锁体10上的螺塞孔12嵌入后用螺塞50封孔。本实用新型由于在锁芯与锁体间设有抗拉结构,因而可有效改善锁芯的轴向受力状况,提高其抗拉强度及安全性。

Description

具有高抗拉强度锁芯的门锁
技术领域
本实用新型涉及门锁，特别是涉及一种可防止锁芯在强力作用下从锁体内沿轴向拉出的具有高抗拉强度锁芯的门锁。
背景技术
锁是人们生活中最为常用的安全用具之一，它广泛应用于建筑、车辆、箱、包等需要启闭的物体上，用于将物体的可开启部分锁住，并只有用钥匙、密码或其它方式才可打开。锁可分为门锁、挂锁等多种形式，尽管形式各异，但其基本结构都大致相同，无论是挂锁还是门锁，都包括锁体，装在锁体内的锁芯和装在锁芯内的弹子组，其中锁芯为转动部件，它在开锁时可随钥匙一起在锁体内转动。传统的门锁由于在锁体与锁芯之间无抗拉结构，因而使得锁芯在沿轴向的强力作用下极易从锁体上拉出，从而受到破坏，失去安全作用。各国对锁芯的抗拉强度都制定了具体的标准以及测试的方法，如美国就将该抗拉强度分为三级，其中标准一级为11000N，二极为4800N，三级为2300N。传统的门锁由于无抗拉结构而难以达到上述标准，因此安全性也较差。
发明内容
本实用新型就是为解决现有门锁锁芯抗拉强度低的问题，而提供一种在锁芯与锁体间设有抗拉结构，因而可有效改善锁芯的轴向受力状况，提高其抗拉强度及安全性的具有高抗拉强度锁芯的门锁。
为实现上述目的，本实用新型提供一种具有高抗拉强度锁芯的门锁，该门锁包括锁体10、装在锁体内的锁芯20及分别装在锁体和锁芯内的弹子组30，其特征在于，在锁芯的外表面与锁体上的锁芯孔内表面之间嵌入至少一粒可防止锁芯沿轴向拉出的金属抗拉体40。
所述金属抗拉体40可以是球状体、柱状体或块状体。
在锁芯20外表面上设有供金属抗拉体40嵌入的凹陷21，在锁体10的锁芯孔内表面上与所述凹陷的对应位置开有一供金属抗拉体40嵌入的环形凹槽11。
金属抗拉体40由锁体10上的螺塞孔12嵌入后用螺塞50封孔。
本实用新型的积极效果在于，由于在锁芯与锁体间设置了金属抗拉体，该抗拉体分别嵌入锁体和锁芯内，因而限制了锁芯在锁体内的轴向移动，使得锁芯抗轴向拉力作用的能力大大提高。拉力试验表明，设有金属抗拉体的锁其锁芯的抗拉强度已超过美国BHMA标准一级所规定的11000N以上，锁芯抗拉强度的大幅提高也使得锁的安全性能大大提高。本实用新型还具有结构非常简单，易于实施，成本低廉等特点。
附图说明
图1是部件分解立体示意图。
图2是本实用新型横向结构剖视图。
图3是本实用新型拉力测试示意图。
具体实施方式
参阅图1、图2，本实用新型的具有高抗拉强度锁芯的门锁的基本结构同普通门锁，它包括锁体10、装在锁体内的锁芯20及分别装在锁体和锁芯内的弹子组30，其中锁芯20置于锁体上的锁芯孔13内，锁芯中间沿轴向开有钥匙孔22，并装有下弹子组33。锁芯通过后端盖23固定于锁体内，后端盖与锁芯螺纹连接。在锁体上通过封片32固定有与下弹子组对应的上弹子组31。
本实用新型的要点在于，为提高锁芯的抗拉强度，在锁芯的外表面与锁体上的锁芯孔内表面之间嵌入至少一粒金属抗拉体40，使得锁芯只能在锁体内转动，而不能沿轴向移动。试验表明，嵌入金属抗拉体的数量以2～4粒为宜，实际上按图2所示在锁芯沿轴线近中部的锁芯外表面与锁体上的锁芯孔内表面之间对称嵌入两粒金属抗拉体已可获得满意的效果。很显然，所述金属抗拉体40可以是球状体、柱状体、块状体或其它形状，从受力角度看，以圆形钢珠效果最佳。为使金属抗拉体在嵌入后既不影响锁芯在锁体内的转动，又起到抗拉作用，在锁芯20外表面上设有供金属抗拉体40嵌入的凹陷21，本例中该凹陷为球形凹陷，圆形钢珠的一部分嵌入该凹陷内。与上述凹陷的位置相对应，在锁体10的锁芯孔内表面上沿圆周开有一环形凹槽11，使圆形钢珠的另一部分嵌入该凹槽内。所述金属抗拉体40是由锁体10上的螺塞孔12嵌入的，本例中对称嵌入两粒钢珠后用螺塞50封孔。
本实用新型的拉力试验如图3所示，先将锁体10固定，在锁芯上沿轴向装设一根螺栓60，然后用拉力机通过螺栓对锁芯施加向外的拉力，直至锁芯被接坏为止。试验表明，设置金属抗拉体后，该门锁的抗拉强度已达11000N以上，超过美国BHMA标准一级的最高标准。

Claims (4)

1、一种具有高抗拉强度锁芯的门锁，包括锁体(10)、装在锁体内的锁芯(20)及分别装在锁体和锁芯内的弹子组(30)，其特征在于，在锁芯的外表面与锁体上的锁芯孔内表面之间嵌入至少一粒可防止锁芯沿轴向拉出的金属抗拉体(40)。
2、根据权利要求1所述的具有高抗拉强度锁芯的门锁，其特征在于，所述金属抗拉体(40)可以是球状体、柱状体或块状体。
3、根据权利要求1所述的具有高抗拉强度锁芯的门锁，其特征在于，在锁芯(20)外表面上设有供金属抗拉体(40)嵌入的凹陷(21)，在锁体(10)的锁芯孔内表面上与所述凹陷的对应位置开有一供金属抗拉体(40)嵌入的环形凹槽(11)。
4、根据权利要求1至3中任一条所述的具有高抗拉强度锁芯的门锁，其特征在于，所述金属抗拉体(40)由锁体(10)上的螺塞孔(12)嵌入后用螺塞(50)封孔。
CN01257963U 2001-11-10 2001-11-10 具有高抗拉强度锁芯的门锁 Expired - Fee Related CN2506740Y (zh)

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Application Number Priority Date Filing Date Title
CN01257963U CN2506740Y (zh) 2001-11-10 2001-11-10 具有高抗拉强度锁芯的门锁
US10/252,778 US20030089148A1 (en) 2001-11-10 2002-09-23 Lock with pull resistant master cylinder

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CN01257963U CN2506740Y (zh) 2001-11-10 2001-11-10 具有高抗拉强度锁芯的门锁

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321253C (zh) * 2004-05-13 2007-06-13 华美（台山）五金制品有限公司 门锁锁胆的抗强拉力结构

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL191855A0 (en) * 2008-06-01 2009-02-11 Multi Key Ltd Rav Mafteah Ltd Key, lock and locking mechanism
US8261587B2 (en) * 2008-06-05 2012-09-11 Asher Haviv Cylinder protective system
SE1050693A1 (sv) * 2010-06-24 2011-06-21 Assa Ab Lås och låsanordning med cylinder, cylinderkärna och fastlåsningsorgan
US9200473B2 (en) * 2011-07-14 2015-12-01 ABUS August Bremicker Söhne KG Rekeyable lock cylinder, rekeyable padlock and method of rekeying
US11359405B2 (en) 2018-06-15 2022-06-14 The Eastern Company Double bitted-reversible key plug lock

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US1519282A (en) * 1922-06-16 1924-12-16 Sargeant & Greenleaf Inc Lock
US1674513A (en) * 1925-12-23 1928-06-19 Briggs & Stratton Corp Tumbler lock
US2065683A (en) * 1928-11-06 1936-12-29 Crown Lock Company Locking device
US1982813A (en) * 1932-07-20 1934-12-04 Briggs & Stratton Corp Lock
US2008662A (en) * 1933-01-06 1935-07-23 American Hardware Corp Lock device
US2047966A (en) * 1933-11-03 1936-07-21 Briggs & Stratton Corp Lock
US4019353A (en) * 1975-05-15 1977-04-26 Chicago Lock Co. Keeper lock for a slide fastener
US4711106A (en) * 1986-12-31 1987-12-08 Johnson Clyde T Locking device
US5964110A (en) * 1996-09-11 1999-10-12 The Eastern Company Key lock with removable plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1321253C (zh) * 2004-05-13 2007-06-13 华美（台山）五金制品有限公司 门锁锁胆的抗强拉力结构

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GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HUAMEI (TAISHAN) HARDWARE CO., LTD.

Free format text: FORMER OWNER: TAISHAN HUAYI HARDWARE PRODUCTS CO., LTD.

Effective date: 20060630

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20060630

Address after: 529231 seaport Road, Guanghai Town, Taishan, Guangdong

Patentee after: Huayi Hardware Product Co., Ltd., Taishan

Address before: 529231 seaport Road, Guanghai Town, Taishan, Guangdong

Patentee before: Huayi Hardware Product Co., Ltd., Taishan

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20020821

Termination date: 20101110