Common-boundary connecting and fixing device for stretch-draw membrane

The utility model discloses a common-boundary connecting and fixing device for a stretch-draw membrane, which relates to the connection of membrane structure boundaries and particularly comprises a clamp, a structural member and a connecting member. Wherein the clamp is provided with a connecting part and an edge closing groove, the connecting part is provided with a connecting groove, the connecting groove is provided with a planar closing opening, the connecting piece is provided with an expanded connector, and the connector is arranged in the connecting groove. The connector of the connecting piece is arranged in the connecting groove, the clamp is fixed to the structural piece through the closing opening and can freely slide along the connecting groove, so that holes do not need to beformed in the clamp, and the requirement for the machining precision of the structural piece is lowered. Therefore, the common boundary of the adjacent membrane units is connected by using the commonboundary connecting and fi