Automatic protective guard for building doors and windows

The utility model discloses an automatic protective guard for building doors and windows. Side frame, a front frame is arranged in the middle of the front side of the side frame; a protective net is mounted in each front frame; a rotating rod b is installed at the bottom of the left side of the fron...

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Bibliographic Details
Main Author WU FEIMING
Format Patent
LanguageChinese
English
Published 19.11.2019
Subjects
ALARM SYSTEMS
DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL
FIXED CONSTRUCTIONS
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES
LADDERS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The utility model discloses an automatic protective guard for building doors and windows. Side frame, a front frame is arranged in the middle of the front side of the side frame; a protective net is mounted in each front frame; a rotating rod b is installed at the bottom of the left side of the front frame, the rotating rod b is arranged in the middle in a bearing and rotationally connected with the bearing, the bearing is located on the left side of the inner bottom wall of the side frame, a rotating rod a is installed at the top of the left side of the front frame, the rotating rod a penetrates through the top wall of the side frame, and a driven gear is installed at the top of the rotating rod a. The front frame is arranged in the middle of the front side of the side frame; when the clothes are aired or the indoor light transmittance is increased; the motor rotates inwards to drive the driven gear on the left side of the driving gear to rotate, the driven gear drives the rotating rod a and the rotating rod
Bibliography:Application Number: CN201821934930U