Child seat for riding vehicles

A child seat for a riding vehicle, comprising:

• a cross beam, a front fork, and a cushion disposed on the cross beam, wherein a connection angle between the cross beam and the front fork is adjustable, and the cross beam and the front fork are fixedly connected by means of a limiting mechanism after the connection angle is determined;
• a foldable armrest being mounted at the connection position between the cross beam and the front fork, wherein the armrest and the cross beam are fixed by the limiting mechanism after the relative position therebetween is determined;
• a position-adjustable bearing beam being disposed on the front fork, wherein the bearing beam is erected on an oblique vehicle pipe of the riding vehicle;
• reversible pedals being disposed at the bottoms of the two side plates of the front fork;
• an axle connection member connected to a seat pipe of the riding vehicle, wherein the axle connection member is disposed at a rear end of the cross beam and comprises a pipe clamp buckled on the seat pipe;
• wherein
• an opening end of the pipe clamp is fastened and fixed by a handle locking member;
• wherein the handle locking member comprises a first handle and a first pin shaft hingedly connected to the first handle;
• wherein
• a first locking nut capable of adjusting a gap of an opening end is disposed on an outer end of the first pin shaft;
• wherein
• the first locking nut comprises a nut cap and a spherical nut body, and the spherical nut body and a spherical through hole in the pipe clamp cooperate to fix the first pin shaft.