Rotor unmanned aerial vehicle undercarriage

The utility model provides a rotor unmanned aerial vehicle undercarriage, relates to rotor unmanned aerial vehicle. Including bounce cylinder, ratchet and pawl control circuit, the external unmanned aerial vehicle steering wheel dustcoat in the dustcoat of bounce cylinder upper end, bounce cylinder dustcoat lower extreme and ratchet's muffjoint, sleeve, sleeve dustcoat, ratchet bar, pawl, pawl return spring are established to the ratchet structure, have the pawl support on the sleeve, establish the ratchet bar slide rail in the sleeve, are equipped with contact switch in the sleeve, sleeve dustcoat and sleeve lower extreme spiro union, ratchet bar stretch into in the sleeve and with ratchet bar slide rail sliding fit, the ratchet bar lower extreme is equipped with the ratchet bar support, the ratchet bar support be used for with the ground face -contact, the ratchet bar both sides are equipped with the rib, the pawl upper end is articulated with the pawl support, the ratchet cooperation of pawl lower extreme and ratchet bar, pawl return spring one end is connected with the pawl support, and the other end is connected with the pawl, pawl control circuit is equipped with battery, contact switch and electro -magnet, on the contact switch sleeve inner wall, the electro -magnet is located between the sleeve and pawl of ratchet structure.