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Electric Bolt Locks — Parallax Forums

Electric Bolt Locks

william chanwilliam chan Posts: 1,326
edited 2008-06-18 14:05 in General Discussion
Hi all,

Anybody knows where to buy a low power (6v or less) electric bolt lock ( usually geared motor and bolt)
without the electronics circuitry?
This would be used for wooden doors.

Thanks.

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www.fd.com.my
www.mercedes.com.my

Comments

  • FranklinFranklin Posts: 4,747
    edited 2008-06-16 20:13
    Would any of these work?

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    - Stephen
  • william chanwilliam chan Posts: 1,326
    edited 2008-06-16 22:04
    I think you forgot to insert the links.....

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    www.fd.com.my
    www.mercedes.com.my
  • skylightskylight Posts: 1,915
    edited 2008-06-16 22:09
    No he didn't click on the word "these"
  • william chanwilliam chan Posts: 1,326
    edited 2008-06-16 22:14
    Sorry, something wrong with my Firefox browser.....

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    www.fd.com.my
    www.mercedes.com.my
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2008-06-16 22:40
    That's why I always surround links with [noparse][[/noparse]u] and [noparse][[/noparse]/u] to underline them. Thin blue text, especially on a gray background, is hard to distinguish from normal text.

    -Phil
  • william chanwilliam chan Posts: 1,326
    edited 2008-06-17 01:54
    Franklin,

    Thanks for the links, but those bolts all require 12v and many milliamps.
    What I need is something that can run on batteries, like those in safe boxes.

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    www.fd.com.my
    www.mercedes.com.my
  • Robert AshRobert Ash Posts: 6
    edited 2008-06-17 15:53
    First question that comes to my mind -- is it a FAIL safe application? ie total power loss your still able to get in/out. If fail secure, then a servo/dc cam actuation can be an easy build. Most all devices like this are Fail Safe so they meet fire safety code. They require power to hold secure. I have one of these used bolts and several strikes for doors. None will have your power specs sorry, these things are 12/24 systems.
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2008-06-18 14:05
    Solenoids, with a spring to drive them latched. Of course, when the power dies, there is no way to unlatch unless there is a mechanical override.

    Here in Taiwan, my building has a front door that opens with a regular keyed cylinder lock from the outside, but has two options on the inside.

    Either you push an apparently mechanical button on the body of the lock to leave the building.
    Or,
    there is a solenoid driven mechanism that connects to a remote button within the intercom on each floor of the building [noparse][[/noparse]we have 5 floors].

    I wish I could provide a picture, but I've no idea where to get one. Nonetheless, it appears to be something like 12volts and in 10 years, we have only had to replace it once in the past few months. That is with 20 occupants and visitors running in and out. The unit is surface mounted on the doors interior and seems to stand up to rain and other kinds of abuse quite well.

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    PLEASE CONSIDER the following:

    Do you want a quickly operational black box solution or the knowledge included therein?······
    ···················· Tropically,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
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