Drainer basket assembling structure of stepping wringer bucket

1. A drainer basket assembling structure of a stepping wringer bucket, comprising:

a) a bucket body, having a containing space concavely formed at a front bottom of the bucket body, and a shaft base disposed at the top of the containing space;

b) a base, having two support stands, and being disposed in the containing space;

c) a driving mechanism, installed between the two support stands, for producing a driving force;

d) a transmission shaft, installed in the containing space, and the bottom of the transmission shaft being driven by the driving mechanism; and

e) a drainer basket, driven by the transmission shaft;

characterized in that an upper end of the transmission shaft is protruded out from the shaft base, and the protruding end is provided for a coupling base at the middle of the bottom of the drainer basket to form a sheathing and linking structure from top to bottom with a protruding end of the transmission shaft, such that the drainer basket can be assembled from the top of the bucket body.

2. The drainer basket assembling structure of a stepping wringer bucket as recited in claim 1 , wherein the protruding end of the transmission shaft includes a latching element disposed at a middle section of the transmission shaft and made of a flexible material, and a tapered cone is formed at an upper section of the latching element, and an axle hole is formed at the center and matched with an external diameter of a circular groove at the middle section of the transmission shaft for sheathing onto the circular groove of the transmission shaft, and forming the conical base on a positioning surface protruded from the external circumference of the transmission shaft; and a coupling base of the drainer basket including an opening formed downwardly from the bottom of the coupling base and non-penetrated from the top, and a latching surface formed in the coupling hole and opposite to the latching element, such that when the drainer basket is assembled, the coupling base is sheathed from top to bottom onto the protruding end of the rotating shaft, and the latching element is provided for positioning the latching surface to prevent the drainer basket from falling out when the drainer basket is rotated on the transmission shaft.

3. The drainer basket assembling structure of a stepping wringer bucket as recited in claim 2 , wherein the protruding end of the transmission shaft and the coupling hole of the drainer basket include a non-circular positioning surface to constitute a sheathing and linking structure.

4. The drainer basket assembling structure of a stepping wringer bucket as recited in claim 2 , further comprising a bearing installed between the shaft base and the transmission shaft, and a flanged body formed on the bearing of the transmission shaft.

5. The drainer basket assembling structure of a stepping wringer bucket as recited in claim 1 , wherein the protruding end of the transmission shaft includes a screw hole formed on a distal surface of the protruding end, and the coupling base of the drainer basket includes a coupling hole sheathed to the protruding end and secured and positioned by a screw.

6. The drainer basket assembling structure of a stepping wringer bucket as recited in claim 5 , wherein the top member of the transmission shaft and the coupling hole of the drainer basket including a non-circular positioning surface constitute an engaging and linking structure.

7. The drainer basket assembling structure of a stepping wringer bucket as recited in claim 5 , wherein a bearing is installed between the shaft base and the transmission shaft, and the transmission shaft has a flanged body formed on the bearing.