CN2729245Y - 双转锁芯防撬锁 - Google Patents

双转锁芯防撬锁 Download PDF

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Publication number
CN2729245Y
CN2729245Y CN 200420012633 CN200420012633U CN2729245Y CN 2729245 Y CN2729245 Y CN 2729245Y CN 200420012633 CN200420012633 CN 200420012633 CN 200420012633 U CN200420012633 U CN 200420012633U CN 2729245 Y CN2729245 Y CN 2729245Y
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Prior art keywords
lock core
twist lock
connecting plate
dead bolt
core
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Expired - Fee Related
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CN 200420012633
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English (en)
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张连生
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Individual
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Individual
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Abstract

一种双转锁芯防撬锁,包括内转锁芯、锁舌连板、拨叉,其特征是:在内转锁芯外套有凸轮轴形的外转锁芯,内转锁芯与外转锁芯旋转配合,在外转锁芯的细轴处上部有锁舌连板,锁舌连板上固定有凸齿,锁舌连板上有复位弹片,在内转锁芯的前端固定有拨叉,在外转锁芯上有环状沟槽,环状沟槽内有固定栓,固定栓可在环状沟槽内滑动,在外转锁芯上还设有定位凹点,定位滚珠可落入定位凹点内。其有益效果是:结构简单合理,采用同类钥匙或万能钥匙均无法打开,防盗开效果好。

Description

双转锁芯防撬锁
技术领域
本实用新型属于锁具技术领域。
背景技术
目前,用于柜门、抽屉门等一些锁具,虽然款式和种类较多,但均有一个不足是用同类钥匙或万能钥匙可试验性地打开,防盗性能不好。
发明内容
本实用新型的目的是:
提供一种不能用同类钥匙或万能钥匙打开的双转锁芯防撬锁。
本实用新型的技术方案是:
在内转锁芯外套有凸轮轴形的外转锁芯,内转锁芯与外转锁芯旋转配合,在外转锁芯的细轴处上部有锁舌连板,锁舌连板上固定有凸齿,锁舌连板上有复位弹片,在内转锁芯的前端固定有拨叉,在外转锁芯上有环状沟槽,环状沟槽内有固定栓,固定栓可在环状沟槽内滑动,在外转锁芯上还设有定位凹点,定位滚珠可落入定位凹点内。
在锁闭状态下,拨叉到外转锁芯外壁长度大于凸齿长度,在锁开状态下,拨叉到外转锁芯外壁长度小于凸齿长度。
本实用新型的有益效果是:
结构简单合理,采用同类钥匙或万能钥匙均无法打开,防盗开效果好。
附图说明
图1是本实用新型结构图;
其中:1是外转锁芯、2是内转锁芯、3是固定栓、4是外转锁芯上的环状沟槽、5是定位弹簧、6是定位滚珠、7是锁舌连板、8是复位弹片、9是凸齿、10是拨叉。
具体实施方式
下面结合附图对本实用新型做进一步描述:
如果不是本锁钥匙插入该锁后转动,内转锁芯与外转锁芯共同转动,因外转锁芯是一个凸轮轴形,在锁闭状态下,拨叉到外转锁芯外壁长度大于凸齿长度,因此拨叉无法拨动锁舌连板上的凸齿,锁无法打开;如果是本锁钥匙插入该锁后转动,外转锁芯受定位滚珠和定位弹簧不转动,而内转锁芯转动,因拨叉到外转锁芯外壁长度小于凸齿长度,拨叉拨动锁舌连板上的凸齿,使锁舌连板移动,实现锁开或锁闭。

Claims (2)

1、一种双转锁芯防撬锁,包括内转锁芯、锁舌连板、拨叉,其特征是:在内转锁芯外套有凸轮轴形的外转锁芯,内转锁芯与外转锁芯旋转配合,在外转锁芯的细轴处上部有锁舌连板,锁舌连板上固定有凸齿,锁舌连板上有复位弹片,在内转锁芯的前端固定有拨叉,在外转锁芯上有环状沟槽,环状沟槽内有固定栓,固定栓可在环状沟槽内滑动,在外转锁芯上还设有定位凹点,定位滚珠可落入定位凹点内。
2、根据权利要求1所述的一种双转锁芯防撬锁,其特征是:在锁闭状态下,拨叉到外转锁芯外壁长度大于凸齿长度,在锁开状态下,拨叉到外转锁芯外壁长度小于凸齿长度。
CN 200420012633 2004-10-22 2004-10-22 双转锁芯防撬锁 Expired - Fee Related CN2729245Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420012633 CN2729245Y (zh) 2004-10-22 2004-10-22 双转锁芯防撬锁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420012633 CN2729245Y (zh) 2004-10-22 2004-10-22 双转锁芯防撬锁

Publications (1)

Publication Number Publication Date
CN2729245Y true CN2729245Y (zh) 2005-09-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420012633 Expired - Fee Related CN2729245Y (zh) 2004-10-22 2004-10-22 双转锁芯防撬锁

Country Status (1)

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CN (1) CN2729245Y (zh)

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