A universal wheel group, the universal wheel group comprises: a base structure, comprising an upper base and a lower base which form a cavity ; a wheel ball , locked in the cavity so as to roll in all directions, wherein a bottom of the lower base is provided with an opening enabling a part of the wheel ball to protrude out of a lower end face of the lower base to form an exposed rolling spherical surface , and an inner diameter of the opening is smaller than a diameter of the wheel ball ; the universal wheel group further comprises: rollers which are not less than three, wherein the rollers are arranged between an inner wall of the upper base and a surface of the wheel ball so as to roll; characterized in that the universal wheel group further comprises: a base structure, wherein the lower end face of the lower base is an oblique plane oblique towards a horizontal plane; spherical rollers and an elastic gasket , which is arranged between the inner wall of the upper base and the surface of the wheel ball , wherein roller mounting bases in a bowl shape, in one-to-one correspondence with the rollers which are not less than three, are distributed uniformly on a bottom of the elastic gasket in a circumferential direction, and grooves matched with the shapes of the rollers are arranged on the roller mounting bases . a base structure, comprising an upper base and a lower base which form a cavity ; a wheel ball , locked in the cavity so as to roll in all directions, wherein a bottom of the lower base is provided with an opening enabling a part of the wheel ball to protrude out of a lower end face of the lower base to form an exposed rolling spherical surface , and an inner diameter of the opening is smaller than a diameter of the wheel ball ; the universal wheel group further comprises: rollers which are not less than three, wherein the rollers are arranged between an inner wall of the upper base and a surface of the wheel ball so as to roll; characterized in that the universal wheel group further comprises: a base structure, wherein the lower end face of the lower base is an oblique plane oblique towards a horizontal plane; spherical rollers and an elastic gasket , which is arranged between the inner wall of the upper base and the surface of the wheel ball , wherein roller mounting bases in a bowl shape, in one-to-one correspondence with the rollers which are not less than three, are distributed uniformly on a bottom of the elastic gasket in a circumferential direction, and grooves matched with the shapes of the rollers are arranged on the roller mounting bases . rollers which are not less than three, wherein the rollers are arranged between an inner wall of the upper base and a surface of the wheel ball so as to roll; characterized in that the universal wheel group further comprises: a base structure, wherein the lower end face of the lower base is an oblique plane oblique towards a horizontal plane; spherical rollers and an elastic gasket , which is arranged between the inner wall of the upper base and the surface of the wheel ball , wherein roller mounting bases in a bowl shape, in one-to-one correspondence with the rollers which are not less than three, are distributed uniformly on a bottom of the elastic gasket in a circumferential direction, and grooves matched with the shapes of the rollers are arranged on the roller mounting bases . <EOS>