Foaming wheel convenient to mount and fix

The utility model belongs to the technical field of child balance car and child walker accessories, and particularly relates to a foaming wheel convenient to install and fix, which comprises a frame, an installation seat is arranged at the bottom of the frame, the installation seat is connected with supporting rods on the left side and the right side through a locking assembly, a connecting groove is arranged on the installation seat, and a foaming wheel is arranged on the frame. The supporting rod is provided with a connecting protrusion matched with the connecting groove, the locking assembly comprises a locking pin, a pin head of the locking pin is provided with a limiting protrusion, the installation base is provided with a limiting groove matched with the limiting protrusion, and a pin rod of the locking pin penetrates through the side wall of the installation base to be connected with the connecting protrusion. The foaming wheel is replaced by dismounting the mounting seat and the supporting rod, the re