Automatic door opening mechanism: Fid-Bau Portal

Automatic door opening mechanism

CHEN ZHIHONG

The invention provides an automatic door opening mechanism which comprises a shell, a driving assembly, an ejection piece, a buffer piece and a driving piece, the shell is suitable for being installed on a door leaf, and a limiting cavity with at least one end open is formed in the shell; the driving assembly is arranged in the shell; the ejection piece is arranged in the limiting cavity in a sliding manner, and the ejection piece is driven by the driving assembly to move between an ejection position and a retraction position in the limiting cavity; the ejection piece moves to the ejection position through the retraction position so as to be suitable for being connected with a door frame in an abutting mode to open a door; the ejection part moves to the retraction position through the ejection position so as to be suitable for being separated from the door frame after the door is closed, so that no force is applied to the door frame and a hinge on the door leaf, and the situation that after the door is closed, the hinge is prone to abnormal sound and damage due to the fact that the ejection part abuts against the door frame for a long time is prevented.

本发明提供一种自动开门机构，包括壳体、驱动组件、顶出件、缓冲件以及驱动件，壳体适于安装于门扇上，其内部设有至少一端开口的限位空腔；驱动组件设于所述壳体内部；顶出件滑动设于所述限位空腔内部，且所述顶出件受所述驱动组件驱动以在所述限位空腔内的顶出位置与缩入位置间移动；其中，所述顶出件经所述缩入位置移动至所述顶出位置，以适于与门框抵接以开门；所述顶出件经所述顶出位置移动至所述缩入位置，以适于关门后与所述门框分离，以保证不对门框以及门扇上的铰链施加任何力，以防止关门后，顶出件长时间顶在门框上容易造成铰链异响、损坏的情况。

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