Flexible protective net rapid networking device with high lap joint node strength

The invention discloses a flexible protective net rapid networking device with high lap joint strength, which comprises an arm I and an arm II, and the arm I and the arm II are arranged in a crossed manner and are hinged at the crossed part; a polymer yarn hot melting arc groove and a heating resistance wire are arranged at the top end of the first arm, a grip is arranged at the bottom end of the first arm, and the polymer yarn hot melting arc groove is of a transversely-arranged U-shaped groove structure. A polymer yarn pushing device is arranged at the top end of the second arm, and a grip is arranged at the bottom end of the second arm. When the grip of the first arm and the grip of the second arm are kneaded, the sliding groove plate can make contact with the polymer yarn hot melting arc groove, the polymer yarn pushing plate can drive the polymer yarn in the polymer yarn pushing plate to slide towards the polymer yarn hot melting arc groove, and the polymer yarn makes contact with the heating resistance