The invention provides a connecting rod type central control
caster control system. The
system comprises a linkage device, a rotating body, a clamping set and an execution set; the linkage device comprises a hexagonal head, a
cam, a hexagonal rod, a hexagonal sleeve, a mounting shaft, a left
bushing, a right
bushing and a
bushing cover. The rotating body comprises a
ball bearing, a
ball bearing sleeve, a main shaft bearing, a main shaft bearing sleeve and a support; the clamping set is of a
symmetric structure and comprises a fluted disc, a rotating block, telescopic blocks, a spring, a connecting rod, a rotating sleeve half gear, a baffle and a
brake block. When the left telescopic block is located in a symmetric groove, a
caster is enabled to be in a straight advancing state; when the left telescopic block and the right telescopic block are separated from the symmetric groove, the cater is in a universal state; when the left telescopic block is located in the symmetric groove and thebrake block is clamped in the fluted disc in the
caster, the caster is in a braking state. On the premise that it is guaranteed that the straight advancing state, the universal sate and the
brake orientation state are quickly switched, the
system is compact in structure, easy to assemble and convenient to assemble and maintain.