Juicer

A juicer, comprising:

• a main body having a rotating drive shaft in an upper part thereof;
• a housing vertically installed in the main body, the housing being open in an upper end thereof and being provided in a lower part thereof with a juice outlet and a residue outlet that are formed at respective locations spaced apart from each other;
• a lid installed to cover the open upper end of the housing and having a feed tube at a predetermined location in an upper part thereof and a shaft hole formed at a lower surface of the lid;
• a strainer installed in the housing, the strainer being open in an upper end thereof and having a plurality of net holes in a part of a sidewall thereof;
• a rotary brush placed between an inner surface of the housing and an outer surface of the strainer, the rotary brush being open in upper and lower ends thereof and having a strainer brush configured to brush the outer surface of the strainer;
• and
• a feed screw having a drive shaft hole in a lower part thereof so as to receive the drive shaft of the main body through the drive shaft hole, and an upper rotating shaft formed at an upper end of the feed screw and configured to be inserted into the shaft hole, the feed screw being rotatably installed on the main body at a location inside the strainer, with spiral blades formed on an outer surface of the feed screw, wherein
• the strainer is stationary between the feed screw and the rotary brush,
• the feed screw defines an extension disposed on the upper rotating shaft formed at the upper end of the feed screw that extends in a radial direction relative to an axis of rotation of the upper rotating shaft across an upper end of the strainer, wherein the extension is configured to engage the feed screw to the rotary brush across the strainer such that rotation of the feed screw directly controls rotation of the rotary brush,
• wherein the extension of the feed screw is provided with a feed screw locking protrusion or a feed screw locking groove,
• wherein the rotary brush is provided with a rotary brush locking groove or a rotary brush locking protrusion in an upper end thereof, and
• wherein the feed screw locking protrusion and the rotary brush locking groove are engaged with each other or the feed screw locking groove and the rotary brush locking protrusion are engaged with each other such that when the feed screw rotates, the rotary brush is rotated.