Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Security door peep hole
The invention relates to a security door peep hole. The security door peep hole comprises a peep hole body A and a peep hole body B, wherein a light passing tube is vertically connected between the peep hole body A and the peep hole body B, a reflector A is disposed at the connection of the peep hole body A and the light passing tube, a reflector B is disposed at the connection of the peep hole body B and the light passing tube, the reflector A and the reflector B are parallel with each other, the reflectors, rotary shafts and a control plate form a reflector adjusting mechanism, the reflector A can rotate around the rotary shaft A, the reflector B can rotate around the rotary shaft B, the rotary shafts are connected with the control plate, and the angles between the reflectors and a horizontal plane can be adjusted when the control plate is moved up and down. The security door peep hole has the advantages that one peep hole body is disposed at a high position, the other peep hole body is disposed at a low position, the two peep hole bodies are connected through the light passing tube, the reflectors at the connections of the people hole bodies and the light passing tube can be rotated, the periscope principle is used, the situation of the low position can be observed from the high position, the situation of the high position can be observed from the low position, problems brought by people height differences are solved, and observation of different outdoor positions is achieved.
Security door peep hole
The invention relates to a security door peep hole. The security door peep hole comprises a peep hole body A and a peep hole body B, wherein a light passing tube is vertically connected between the peep hole body A and the peep hole body B, a reflector A is disposed at the connection of the peep hole body A and the light passing tube, a reflector B is disposed at the connection of the peep hole body B and the light passing tube, the reflector A and the reflector B are parallel with each other, the reflectors, rotary shafts and a control plate form a reflector adjusting mechanism, the reflector A can rotate around the rotary shaft A, the reflector B can rotate around the rotary shaft B, the rotary shafts are connected with the control plate, and the angles between the reflectors and a horizontal plane can be adjusted when the control plate is moved up and down. The security door peep hole has the advantages that one peep hole body is disposed at a high position, the other peep hole body is disposed at a low position, the two peep hole bodies are connected through the light passing tube, the reflectors at the connections of the people hole bodies and the light passing tube can be rotated, the periscope principle is used, the situation of the low position can be observed from the high position, the situation of the high position can be observed from the low position, problems brought by people height differences are solved, and observation of different outdoor positions is achieved.
Security door peep hole
WANG DAN (Autor:in) / CHENG LIANG (Autor:in)
06.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES