Wheel automatic adjustment mechanism and foldable motorized vehicle having same
An automatic wheel adjustment mechanism mounted between two front wheels and a front wheel stem of a foldable motorized vehicle, comprising: (a) a front wheel supporting shaft having a bearing housing positioned on the top center portion of the front wheel supporting shaft, a first connecting portion, and a second connecting portion positioned on the front wheel supporting shaft, (b) a connecting member having a ring on one end and a connecting shaft on other end, wherein the connecting shaft extends upwards to form a connecting portion, and (c) a plurality of bearings, wherein outer races of the bearings is fixed at the center portion of the front wheel supporting shaft, the ring of the connecting member is connected to the lower end of the front wheel stem, the connecting shaft of the connecting member passes through and fixedly connected to the inner races of the plurality of the bearings.
1. An automatic wheel adjustment mechanism mounted between a first front wheel and a second front wheel and a front wheel stem of a foldable motorized vehicle, comprising:
(a) a front wheel supporting shaft having a first end, a second end, a bearing housing positioned on the top center portion of the front wheel supporting shaft, a first connecting portion positioned on a first end of the front wheel supporting shaft, and a second connecting portion positioned on a second end of the front wheel supporting shaft;
(b) a connecting member having a ring shaped body on a first end and a connecting shaft on a second end, wherein the connecting shaft extends upwards to form a connecting portion; and
(c) a plurality of bearings mounted inside of the bearing housing,
wherein outer races of the plurality of the bearings is fixed at the center portion of the front wheel supporting shaft inside of the bearing housing, the ring shaped body of the connecting member is connected to the lower end of the front wheel stem, the connecting shaft of the connecting member passes through and fixedly connected to the inner races of the plurality of the bearings.
2. The automatic wheel adjustment mechanism according to claim 1 , wherein the first front wheel is mounted on the first end of the front wheel supporting shaft, and the second front wheel is mounted on the second end of the front wheel supporting shaft.
3. The automatic wheel adjustment mechanism according to claim 2 , wherein the lower end of the front wheel stem is inserted into the ring shaped body of the connecting member and is fixed onto the ring shaped body of the connecting member.
4. The automatic wheel adjustment mechanism according to claim 3 , wherein the connecting shaft of the connecting member is perpendicular to the ring shaped body of the connecting member and protrudes forward from the connecting member, and mounted inside of the inner races of the plurality of the bearings.
5. The automatic wheel adjustment mechanism according to claim 4 , wherein the automatic wheel adjustment mechanism further comprises a first shock absorber and a second shock absorber, each of the first and second shock absorbers comprises a first end portion, a second end portion, and an elastic element, the elastic element is disposed obliquely between the first end portion and the second end portion of the first and second shock absorbers.
6. The automatic wheel adjustment mechanism according to claim 5 , wherein the first end portion of the first shock absorber is connected to the connecting portion of the connecting member, the second end portion of the first shock absorber is connected to the first connecting portion of the front wheel supporting shaft, the first end portion of the second shock absorber is connected to the connecting portion of the connecting member, and the second end portion is connected to the second connecting portion of the front wheel supporting shaft.
7. The automatic wheel adjustment mechanism according to claim 6 , wherein the elastic element of the first shock absorber and the second shock absorber comprises coil spring, and the elastic element of the first shock absorber and the second shock absorber are placed on two sides of the connecting shaft of the connecting member, symmetrically, in a shape of two splayed legs.
8. A foldable motorized vehicle, comprising:
a first front wheel;
a second front wheel;
a front wheel stem; and
an automatic wheel adjustment mechanism mounted between the first front wheel and the second front wheel and the front wheel stem, the automatic wheel adjustment mechanism comprising:
(a) a front wheel supporting shaft having a first end, a second end, a bearing housing positioned on the top center portion of the front wheel supporting shaft, a first connecting portion positioned on a first end of the front wheel supporting shaft, and a second connecting portion positioned on a second end of the front wheel supporting shaft;
(b) a connecting member having a ring shaped body on a first end and a connecting shaft on a second end, wherein the connecting shaft extends upwards to form a connecting portion; and
(c) a plurality of bearings mounted inside of the bearing housing,
wherein outer races of the plurality of the bearings is fixed at the center portion of the front wheel supporting shaft inside of the bearing housing, the ring shaped body of the connecting member is connected to the lower end of the front wheel stem, the connecting shaft of the connecting member passes through and fixedly connected to the inner races of the plurality of the bearings.