Convenient automatic locking of installation type bicycle

Convenient automatic locking of installation type bicycle, including lock body, locking lever, screw and fore shaft, the lock body passes through the screw fixation on the shock attenuation back shaft, lock body bottom is located to the locking lever, and during the locking lever left end inserted the fore shaft, the left end of lock body was located to the fore shaft, the lock body includes fixed column, lead ring, lever, transfer line reset spring, transfer line, dwang, driving head and connection activity loop, the fixed column is connected bottom the locking lever, connect the activity loop and fix on the locking lever, should connect activity loop and lever swing joint, the lead ring cover is on the lever, the lever right -hand member is connected with the transfer line, and the transfer line bottom is connected with transfer line reset spring, the transfer line lower part is equipped with the several recess, the transfer line top is connected with the driving head through the pulley, the dwang bottom is located to the driving head, this product is installed on the shock attenuation back shaft of bicycle front wheel both sides, need not to carry, combines together with the bicycle, and convenient to use is swift, and the security is higher.