Building curtain wall mounting and fixing support

The utility model provides a building curtain wall installing and fixing support which comprises a fixing base, a rotating control piece and assembling movable clamping frames, a sliding groove is formed in one side of the fixing base, the rotating control piece is installed in the sliding groove through a rotating shaft, and the two assembling movable clamping frames are both movably arranged in the sliding groove. And the movable clamping frame capable of being assembled is connected with the rotary control piece. The distance between the upper and lower movable clamping frames capable of being assembled is adjusted through rotation of the rotary control piece, the glass curtain wall clamping device is used for clamping and fixing a glass curtain wall located between the two movable clamping frames capable of being assembled, and the glass curtain wall clamping device is simple and flexible in structure and wide in application range. 本实用新型提供了一种建筑幕墙安装固定支架，包括固定基座、旋转控制件和可拼装活动夹持架，所述固定基座的一侧开设有滑动槽，所述旋转控制件通过转轴安装在所