CN2396103Y - 自锁井盖 - Google Patents

自锁井盖 Download PDF

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Publication number
CN2396103Y
CN2396103Y CN 99250356 CN99250356U CN2396103Y CN 2396103 Y CN2396103 Y CN 2396103Y CN 99250356 CN99250356 CN 99250356 CN 99250356 U CN99250356 U CN 99250356U CN 2396103 Y CN2396103 Y CN 2396103Y
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manhole
manhole cover
well lid
self
shift fork
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Expired - Fee Related
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CN 99250356
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English (en)
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马中骏
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Individual
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Individual
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Priority to CN 99250356 priority Critical patent/CN2396103Y/zh
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  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

本实用新型公开一种自锁井盖,在现有的井盖内侧固定有支架,支架内装置有锁舌和拨叉,锁舌和拨叉可前后移动,并伸出井盖边缘,卡在井口内壁,使井盖与井口锁紧,只有通过专用钥匙才能打开弹簧锁;将井盖固定锁在井口上,防止了井盖丢失,杜绝了井口因无井盖发生的伤害事故,弹簧锁结构简单,性能可靠,开启方便,可广泛应用于城市的上下水道、供热、煤气管道、地下电缆等井口封盖。

Description

自锁井盖
本实用新型涉及一种防丢失井盖,确切地说是发明了一种自锁井盖,属于城市公共设施技术领域。
在城市公共设施中各种管道井口遍布大街小巷,井盖具有防尘安全的主要作用,但井盖的丢失时有发生,不但给国家经济带来损失,并且给广大居民生活带来许多不便,因井盖丢失造成人身伤害事故也不断发生。
本实用新型公开一种自锁井盖,目的旨在解决普通井盖丢失问题。
为达到本实用新型的目的,具体解决方案如下:在现有的井盖内侧固定有支夹架,支架内装置有锁舌和拨叉,锁舌和拨叉可前后移动,并伸出井盖边缘,卡在井口内壁,使井盖与井口锁紧,只有通过专用钥匙才能打开弹簧锁,不易被人移动,达到防盗目的。
本实用新型的积极效果在于:在现有的井盖上安装弹簧锁,将井盖固定锁在井口上,防止了井盖丢失,杜绝了井口因无井盖发生的伤害事故,弹簧锁结构简单,性能可靠,开启方便,可广泛应用于城市的上下水道、供热、煤气管道、地下电缆等井口封盖。
图1为本实用新型结构原理图。
下面结合图1进一步说明本实用新型:由井盖1、弹簧2、拉簧4、锁舌3、拨叉6、锁孔5、支架7组成自锁井盖,井盖1上固定有支架7,其内分别安装有锁舌3、拨叉6,可前后移动,并伸出井盖边缘,弹簧2套在锁舌3的尾端,拉簧4一端固定在井盖1上,另一端与拨叉6的后端连接,拨叉6的尾部为三角形凸台,相对凸台位置的井盖1上开有一钥匙孔5,井盖钥匙通过钥匙孔5插进并拨动凸台,使拨叉移动可收缩或伸出,完成井盖的自锁功能。

Claims (1)

1、一种自锁井盖,由井盖(1)、支架(7)、锁舌(3)组成,其特征在于:井盖(1)内侧固定有支架(7),支架(7)内装置有锁舌(3)和拨叉(6),锁舌(3)和拨叉(6)可前后移动,并伸出井盖(1)边缘,卡在井口内壁,弹簧(2)套在锁舌(3)的尾端,拉簧(4)一端固定在井盖(1)上,另一端与拨叉(6)的后端连接,拨叉(6)的尾部为三角形凸台,相对凸台位置的井盖(1)上开有一钥匙孔(5)。
CN 99250356 1999-11-19 1999-11-19 自锁井盖 Expired - Fee Related CN2396103Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 99250356 CN2396103Y (zh) 1999-11-19 1999-11-19 自锁井盖

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 99250356 CN2396103Y (zh) 1999-11-19 1999-11-19 自锁井盖

Publications (1)

Publication Number Publication Date
CN2396103Y true CN2396103Y (zh) 2000-09-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 99250356 Expired - Fee Related CN2396103Y (zh) 1999-11-19 1999-11-19 自锁井盖

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CN (1) CN2396103Y (zh)

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