Abstract: The invention discloses a wheel structure and a scooter comprising the wheel structure. The wheel structure comprises: an inner rim having a first inner annular face and a first outer annular face that are arranged radially, the first inner annular face is hollow and provided with an interface for connecting to a steering mechanism of the scooter; an outer rim having a second inner annular face which is arranged radially and a second outer annular face for contacting the ground; wherein an intermediate connecting assembly is disposed between the first outer annular face of the inner rim and the second inner annular face of the outer rim, and the outer rim, without need for hub, contacts the inner rim in a rolling manner via the intermediate connecting assembly and is rotatable relative to the inner rim. The wheel structure does not contain a hub and presents a hollow visual effect of the wheel.

Abstract: The invention discloses a wheel structure and a scooter comprising the wheel structure. The wheel structure comprises: an inner rim having a first inner annular face and a first outer annular face that are arranged radially, the first inner annular face is hollow and provided with an interface for connecting to a steering mechanism of the scooter; an outer rim having a second inner annular face which is arranged radially and a second outer annular face for contacting the ground; wherein an intermediate connecting assembly is disposed between the first outer annular face of the inner rim and the second inner annular face of the outer rim, and the outer rim, without need for hub, contacts the inner rim in a rolling manner via the intermediate connecting assembly and is rotatable relative to the inner rim. The wheel structure does not contain a hub and presents a hollow visual effect of the wheel.

Abstract: This invention is with regard to a kind of Long-acting disinfectant. Its ingredients are composed of 2,4,4′-trichloro-2′-Hydroxy diphenyl ether, amino emulsified-silica resin, 1,2 propanediol, fatty alcohol polyethenoxy ether and distilled water. First, the fatty alcohol polyethenoxy ether should be mixed with distilled water, 2,4,4′-trichloro-2′-hydroxy diphenyl ether is to be put into a high speed agitator, to make the mixture in the agitator dissolved by stirring at the temperature of 50˜70° C. When the temperature has been lowed down, the amino-silica-milk resin should be added. After stirring in the agitator at low revolution speed for several minutes, provided the mixture is homogeneous, the end product can be obtained. The long-acting disinfectant has the specific properties of excellent disinfecting effect, long-acting potency, repeated-pollution resistant, non-toxic & safe etc.