将非常感谢一些帮助。我们订一个复合前门与多锁点。气缸是35 35 avocet。我问信箱的底部所以人不能把他们的手在信中盒,把关键。当门准备好了他们说他们把中间的信箱偶然和给我一个折扣,我接受了我们担心安全几乎完全房子&想要尽快的门。造成的问题我们不能锁上门,把后面的关键,我们需要改变一些但是我不知道什么是最好的解决方案。门没有锁,除非关键是把但是我们不能离开的关键在晚上门,以防有人把他们的手,转动钥匙。在发生火灾我们无法出去如果关键不是手。所以我想换一个拇指转——但我们的孩子可以打开,所以太危险。有人仍然可以通过信箱把拇指。 So then I thought we could add a sucurity chain at the top with the thumb turn. Then we could get out in a fire but toddler can't escape. However - This may seem far fetched but if we were away somebody could turn the thumb turn through the letter box and simply cut through the chain. Or force it to break the chain - as its only fixed into the composite door / a wall. Is there another option I don't know about? I'm very security conscious so want to make sure our family are safe! I would really appreciate your help on this! If the thumb turn is the option what cylinder would you recommend in terms of strength or are they all similar? Thanks so much, Claire

更新:由于我真的很感谢你的回答。门干扰机听起来像一个不错的选择,所以你离开的设置只是添加干扰机即使有人设法通过&手把钥匙他们无法到达门锤子?
由于研发锁匠——这也是v有用