A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improved door opening booster
The invention discloses an improved door opening booster which solves the problem that an existing device is prone to deformation when being squeezed. The improved door opening booster is characterized in that a guide ring is arranged on the bottom face of a frame, and the inner diameter of the guide ring is slightly larger than the largest diameter of a boosting rod; two opposite guide seats are disposed on the frame perpendicular to the moving direction of a door sheet; guide grooves are formed in the guide seats, and a guide frame is arranged between the guide grooves; the upper end of an insertion rod is inserted in the guide frame and fixed to the guide frame through a fixing device; the guide frame drives the insertion rod to move up and down in the guide grooves and the guide ring. The guide seats and the guide ring are used for locating the insertion rod, and the insertion rod is prevented from distorting and deforming when squeezed by a shut-off door.
Improved door opening booster
The invention discloses an improved door opening booster which solves the problem that an existing device is prone to deformation when being squeezed. The improved door opening booster is characterized in that a guide ring is arranged on the bottom face of a frame, and the inner diameter of the guide ring is slightly larger than the largest diameter of a boosting rod; two opposite guide seats are disposed on the frame perpendicular to the moving direction of a door sheet; guide grooves are formed in the guide seats, and a guide frame is arranged between the guide grooves; the upper end of an insertion rod is inserted in the guide frame and fixed to the guide frame through a fixing device; the guide frame drives the insertion rod to move up and down in the guide grooves and the guide ring. The guide seats and the guide ring are used for locating the insertion rod, and the insertion rod is prevented from distorting and deforming when squeezed by a shut-off door.
Improved door opening booster
XIAO JIE (author) / ZHAO DONGLOU (author) / LI HONGRU (author)
2015-11-18
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
Folding door system with improved door opening and closing lubrication
| European Patent Office | 2023