Mechanism innovation: first, trapping investigation, after 96333 platform receives alarm, within 10 minutes determine whether abnormal trapping (improper maintenance, management negligence, equipment hidden danger), if yes immediately trigger law enforcement, market supervision arrive within 30 minutes for investigation; second, responsibility identification, distinguish responsibility of user unit (property), maintenance unit, manufacturer, clarify trapping over 30 minutes, rescue delay, inadequate rectification are all negligence, fine, interview, publicize according to law; third, low-price maintenance investigation, maintenance price lower than 60% of market price automatic early warning, verify whether jerry-building, false maintenance, investigate and cancel qualification, joint punishment; fourth, credit linkage, trapping responsibility, violation maintenance included in credit file, linked to bidding, subsidy, insurance rate, dishonest units restricted everywhere; fifth, remarkable effect, investigated 29 trapping incidents in 2025, filed 4 cases, trapping incidence rate decreased by 14.4% YoY, rescue time shortened by 40%. This model has been promoted throughout Zhejiang.