1results about How to "Change the installation angle" patented technology

The utility model relates to a kind of optical beam smoke detector, comprising: back cover, with first installation site and second installation site;Optical module, is installed at the first installation site;Key, at the second installation site;First front cover, cover in the first installation site, to at least partially shield the optical module;Second front cover, detachably installed at the second installation site, to at least partially shield the key;Control panel, electrically connected to the key;Drive assembly, electrically connected to the control panel, the drive assembly is used to adjust the position state of the optical module at the first installation site.