Combined elbow device with adjustable trunking angle and construction method

The invention provides a trunking angle-adjustable combined elbow device and a construction method, the trunking angle-adjustable combined elbow device comprises a trunking 90-degree or above elbow and a trunking 90-degree or below elbow, the trunking 90-degree or above elbow comprises a trunking 90-degree elbow, a trunking acute-angle elbow and a connecting piece, the trunking acute-angle elbow is connected with the trunking 90-degree elbow and a straight bridge through the connecting piece respectively, the trunking 90-degree or below elbow comprises a trunking acute-angle elbow and a connecting piece, and the trunking acute-angle elbow is connected with the straight bridge through the connecting piece. The device is suitable for laying of trunkings and bridges in variable construction sites and is convenient for quick and precise installation. 本发明提出一种线槽角度可调的组合弯头装置及施工方法，包括线槽90°以上弯头和线槽90°以下弯头，线槽90°以上弯头包括线槽90°弯头、线槽锐角弯头和连接件，线槽锐角弯头通过所述连接件分别与线槽90°弯头及直桥架连接，线槽90°以下弯头包括线槽锐角弯头和连接件，线槽锐角弯头通过连接件与直桥架连接，本发明适合多变的施工现场线槽及桥架