Patent ID: 7360321

Claim:
A dryer for vegetables and fruits, comprising: a base seat provided with a motor and an upward fan; a plurality of netted racks stacked together and mounted on a top of said base seat; a top cover mounted on a top of said netted racks; a heater mounted surrounding said base sea for providing heat energy; a hood enclosing said fan and said heater for providing hot air recycling and providing hot air being blowing downward, said hood having a center air opening and a side air outlet net, hot air being sucked via said center air opening and then being reheated for further utilization, said side air outlet being for enabling hot air from below to blow upward; said bottom seat being provided with a circuit board and a control panel and having a temperature sensor for sensing temperature of said heater; each of said netted racks having a netted board, said netted board having an upper side and a lower side provided with a plurality of support blocks, said support blocks being positioned so that when an upper one of said netted racks is rotated through an angle of 180 degrees, the support blocks of the upper one of said netted racks will bear against the support blocks of a lower one of said netted racks thereby increasing interior height between said upper and lower netted racks, said netted racks having a center opening, a top section of said top cover having a plurality of air openings; whereby said fan is used to blow hot air for recycling so that the hot air passes through said heater for heating and the hot air is blown upward from a bottom of said dryer through said netted board, moisture gets away from said air openings of said top cover and will not be accumulated in said dryer, and interior height between said upper and lower netted racks can be adjusted by rotating the upper one of said netted racks through an angle of 180 degrees.