Detection mechanism of clear extension of paper currency

The utility model relates to a clear extension field of paper currency discloses a detection mechanism of clear extension of paper currency, including the protective housing of fixed connection on theclear extension of paper currency, be provided with down the base in the protective housing, it has the top base to hinge on the base down, form banknotes path between top base and the lower base, beprovided with the detection part between top base and the lower base, be provided with the mounting between top base and the lower base, the mounting is including articulating the joint piece on thetop base, the lug is decided to card under the fixed connection on the base, set up and decide lug matched with joint groove on the joint piece and with the card, both ends respectively with joint piece and top base fixed connection's first elastic component, the utility model has the advantages of it is following and effect: the new mechanical structure of this scheme utilization, through settingup the mounting, the mounti