Residual film recycling machine spring overload-preventive film loosening shovel

The invention belongs to the field of agricultural machinery and relates to a residual film recycling machine spring overload-preventive film loosening shovel which comprises a supporting crossbeam (1), a limiting retaining plate (2), a rotating beam (4), a film loosening shovel plate (7), a connection rod (9), a rear overload-preventive spring (13) and a front overload-preventive spring (17). Thefilm loosening shovel is simple in structure, low in manufacturing cost and high in applicability; deformation and breakage of and damage to the film loosening shovel during film loosening and soil loosening in soil due to collision with obstacles like stone are avoided, so that the film loosening shovel is protected effectively, service life of the film loosening shovel is prolonged, labor amount is reduced, manpower and material sources are saved, working efficiency is improved, and residual films can be recycled effectively and timely. 本发明属于农业机械领域，涉及种残膜回收机弹簧防过载起膜铲。该起膜铲包括支撑横梁(1)、限位挡板(2)、转动梁(4)、起膜铲板(7)、连杆(9)、后防过载弹簧(