Novel gear shifting mechanism of transmission

The utility model relates to a novel gear shifting mechanism of a transmission. The mechanism comprises a gear shifting arm, a fork shaft, a guide shaft, a five-gear fork and a gear-reversing control fork. The five-gear fork is provided with a C-type clamping ring, the fork shaft and the guide shaft are provided with corresponding clamping ring installation grooves and are located on the gear-reversing control fork, the five-gear fork is located on the fork shaft and the guide shaft, the gear shifting arm is connected with the fork shaft through a first pin shaft, the gear-reversing control fork is provided with a second pin shaft sliding groove, a second pin shaft is located on the fork shaft, a first ball socket and a second ball socket which are composed by opposite hemispheric grooves are arranged between the fork shaft and the guide shaft, the first ball socket is located in the five-gear fork, a first steel ball is installed in the first ball socket, the second ball is located in the gear-reversing cont