Blowing suction device

A blowing suction device having a blowing mode and a suction mode, the blowing suction device comprising:

• a body, comprising a grip portion to be held by an operator and a main unit housing, the main unit housing being provided with an opening in communication with outside;
• a power supply interface mounted on the body;
• an airflow generation apparatus, connected to the main unit housing, and comprising a motor, a fan driven by an output shaft of the motor and generating an airflow, and an inner housing that at least surrounds fan blades of the fan, wherein the main unit housing at least partially covers the inner housing, and the inner housing comprises an air inlet portion and an air outlet portion in communication with the outside;
• a blowing-suction tube, having a tube opening in communication with the outside for air flowing into or flowing out, the blowing-suction tube being provided at a first end near the airflow generation apparatus;
• and
• a collection apparatus, used for collecting foreign objects blown out from the air outlet portion,
• the air inlet portion comprising an air inlet opening in fluid communication with the opening of the main unit housing in the blowing mode, and the air outlet portion comprising an air outlet opening capable of being connected to the collection apparatus in the suction mode, wherein:
• the inner housing is pivotally disposed relative to the main unit housing and is rotatable relative to the body between at least a blowing position in the blowing mode and a suction position in the suction mode,
• when the inner housing rotates to the blowing position, the air outlet opening is opposite the first end of the blowing-suction tube, and
• when the inner housing rotates to the suction position, the air inlet opening is communicating with the first end of the blowing-suction tube.

A blowing suction device having a blowing mode and a suction mode, the blowing suction device comprising:

• a body, comprising a grip portion to be held by an operator and a main unit housing connected to the grip portion;
• an airflow generation apparatus, connected to the main unit housing, and comprising a motor, a fan driven by an output shaft of the motor and generating an airflow, and an inner housing that at least surrounds fan blades of the fan, wherein the main unit housing at least partially covers the inner housing, and the inner housing comprises an air inlet portion and an air outlet portion in communication with outside;
• a blowing-suction tube, having a tube opening in communication with the outside for air flowing into or flowing out, the blowing-suction tube being provided at a first end near the airflow generation apparatus;
• and
• a blowing-suction switching mechanism being capable of driving the first end of the blowing-suction tube to be away from the air inlet portion and/or the air outlet portion of the inner housing by a preset distance, and driving the inner housing to rotate relative to the grip portion or the main unit housing to a blowing position in the blowing mode or to a suction position in the suction mode, wherein:
• when the inner housing rotates from the blowing position to the suction position, the blowing-suction switching mechanism is capable of driving the first end of the blowing-suction tube to face the air inlet portion, and
• when the inner housing switches from the suction mode to the blowing mode, the blowing-suction switching mechanism is capable of driving the first end of the blowing-suction tube to face the air outlet portion.