A kind of pigeon enters the structure of nest door,It includes one to enter nest door body,Wherein: this, which enters nest door body, has an entrance,And on the what entrance,Downside is respectively equipped with a connection cross bar and limit cross bar,The connection cross bar system group sets a passive door rod,The another hook part that provides is pivoted on what connection cross bar and between passive door rod,And enter nest inner side of door system what entrance two sides and be correspondingly provided with two rail bars,The two rails bar upper half system, which curves inwardly, inside contracts section with one,And the skewed body of rod is extended to form down,And be one entrance bar of slide hinge between the two rails bar,And limited by hook part hanging,Cooperate the outlet bar for being articulated with a transverse direction between the two sides of entrance again,Another what entrance exterior bottom bolt has a foot pedal unit,By above structure,So that constituting the structure that a kind of pigeon enters nest door.一種鴿子入巢門之結構，其包含一入巢門體，其中：該入巢門體具有一出入口，並於該出入口上、下側分別設有一連結橫桿以及限位橫桿，該連結橫桿係組設一被動門桿，另提供一掛勾件樞設於連結橫桿上以及被動門桿間，而入巢門體內側係於出入口兩側邊對應設有二軌桿，該二軌桿上半部係向內彎曲具有一內縮段，並往下延伸形成傾斜狀之桿體，且該二軌桿間係滑動樞接一入口擋桿，並受掛勾件吊掛限制，又出入口之兩側間配合樞接有一橫向之出口擋桿，另於出入口外側底部栓接有一足踏部，藉由上述結構，俾能構成一種鴿子入巢門之結構。
