CN2611515Y - 一种防盗锁 - Google Patents

一种防盗锁 Download PDF

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Publication number
CN2611515Y
CN2611515Y CN 03235937 CN03235937U CN2611515Y CN 2611515 Y CN2611515 Y CN 2611515Y CN 03235937 CN03235937 CN 03235937 CN 03235937 U CN03235937 U CN 03235937U CN 2611515 Y CN2611515 Y CN 2611515Y
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China
Prior art keywords
lock
keyhole
utility
lock core
theftproof
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Expired - Fee Related
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CN 03235937
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English (en)
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潘荣武
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Individual
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Abstract

一种防盗锁,固定在锁座(2)上的防转护片(3)与钥匙孔对应处开有与钥匙孔形状相似的孔(4)。这种防盗锁能有效地防止万能钥匙的“副勾”将锁芯转动,非法开启门锁,而且结构简单,成本低,安全性高。

Description

一种防盗锁
                             技术领域
本实用新型属防盗锁,具体是一种防止用非法工具转动锁芯开锁的防盗锁。
                             背景技术
目前市场上出现的机械类锁,虽然品种繁多,但锁芯、锁体结构大都基本相同。这类锁当用万能钥匙开锁时,由万能钥匙的“主勾”从钥匙孔插入锁芯内拨动弹子,使弹子的一端面正好处在锁芯与锁体的接触面上,这时,随即转动卡在钥匙孔边的“副勾”,锁芯便被带动旋转致使锁被打开,造成财物被盗的后果。
                             发明内容
本实用新型所要解决的技术问题是防止用非法工具转动锁芯开锁。本实用新型以如下技术方案解决上述技术问题:固定在锁座2上的防转护片3与钥匙孔对应处开有与钥匙孔形状相似的孔4。
本实用新型能有效地防止万能钥匙的“副勾”将锁芯转动,非法开启门锁,而且结构简单,成本低,安全性高。
                             附图说明
图1是本实用新型防盗锁的结构示意图。图中防转护片3中心有一“十”字形孔。
图2是本实用新型防盗锁的防转护片上有近似于“T”字形孔的形状示意图。
                            具体实施方式
如图1所示,固定在锁座2上的防转护片3开有与“十”字形钥匙孔的大小、形状、位置相同的孔4,锁芯1可以在防转护片3后面转动。当用万能钥匙插入锁芯1后,虽然可以拨动弹子,但卡在钥匙孔边上的“副勾”被防转护片3挡住,无法作旋转运动,也就无法带动锁芯转动进行开锁,起到了防盗作用。
当锁的钥匙孔为“一”字形时,防转护片可采用如图2的开孔形状近似于“T”字形。

Claims (1)

1、一种防盗锁,有锁芯1、锁座2,其特征在于:固定在锁座(2)上的防转护片(3)与钥匙孔对应处开有与钥匙孔形状相似的孔(4)。
CN 03235937 2003-03-18 2003-03-18 一种防盗锁 Expired - Fee Related CN2611515Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03235937 CN2611515Y (zh) 2003-03-18 2003-03-18 一种防盗锁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03235937 CN2611515Y (zh) 2003-03-18 2003-03-18 一种防盗锁

Publications (1)

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CN2611515Y true CN2611515Y (zh) 2004-04-14

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CN 03235937 Expired - Fee Related CN2611515Y (zh) 2003-03-18 2003-03-18 一种防盗锁

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CN (1) CN2611515Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110259289A (zh) * 2019-07-22 2019-09-20 闫越 防盗锁具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110259289A (zh) * 2019-07-22 2019-09-20 闫越 防盗锁具
CN110259289B (zh) * 2019-07-22 2024-03-01 闫越 防盗锁具

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