Paying-off mechanism for rope expansion and guide of helicopter and auxiliary line-guiding paving mechanism

The invention discloses a paying-off mechanism for construction of rope expansion and guide of a helicopter, which is connected with the helicopter and comprises a paying-off frame, a brake component and a line outgoing component, wherein the brake component is arranged on the paying-off frame; the line outgoing component is arranged below the paying-off frame; the paying-off frame comprises a paying-off frame body and a paying-off shaft level for supporting a paying-off shaft; the paying-off shaft lever is arranged between two frames of the paying-off frame body; a hanging ring for being externally connected with the helicopter is arranged at the top of the paying-off frame body; the line outgoing component comprises a line outgoing support frame and a line outgoing pulley; the top partsof the two sides of the line outgoing support frame are respectively and fixedly connected with the bottom parts of the two sides of the paying-off frame body; and the line outgoing pulley is arranged at the bottom of the lin