Blowing suction device

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

• a body, comprising a grip portion and a main unit housing connected to the grip portion, the main unit housing being provided with an opening in communication with the outside;
• 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 a volute surrounding the fan, the volute comprising an air inlet portion and an air outlet portion in fluid communication with the opening;
• a blowing-suction tube, having a tube opening in communication with the outside for air flowing into or flowing out,
• wherein the volute is pivotally disposed relative to the main unit housing and is rotatable between at least a blowing position in the blowing mode and a suction position in the suction mode, when the volute rotates to the blowing position, an airflow flows into the air inlet portion of the volute from the opening and flows toward the tube opening of the blowing-suction tube from the air outlet portion of the volute, and when the volute rotates to the suction position, an airflow enters the air inlet portion of the volute from the tube opening and flows out from the air outlet portion, and
• a blowing-suction switching mechanism,
• wherein the blowing-suction switching mechanism is a linkage apparatus, the linkage apparatus is capable of driving a first end of the blowing-suction tube to be away from the air inlet portion or the air outlet portion of the volute by a preset distance and is capable of linking the volute to rotate relative to the grip portion to the blowing position in the blowing mode or to the suction position in the suction mode, when the volute rotates from the blowing position to the suction position, the linkage apparatus is capable of linking the first end of the blowing-suction tube to face the air inlet portion, and when the volute switches from the suction mode to the blowing mode, the linkage apparatus is capable of linking the first end of the blowing-suction tube to face the air outlet portion.

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

• a body, comprising a grip portion to be held by an operator;
• an airflow generation apparatus, connected to the body, and comprising a motor, a fan driven by an output shaft of the motor and generating an airflow, and a volute surrounding the fan, the volute comprising an air inlet portion and an air outlet portion in communication with the outside;
• a blowing-suction tube, having a tube opening that is in communication with the outside and is used 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 for an external airflow to enter an inner cavity of the volute, the air outlet portion comprising an air outlet opening capable of being connected to the collection apparatus,
• wherein the volute is pivotally disposed relative to the grip portion and is rotatable between at least a blowing position in the blowing mode and a suction position in the suction mode, when the volute rotates to the blowing position, the air outlet opening is opposite the first end of the blowing-suction tube, and when the volute rotates to the suction position, the air inlet opening is joined to and in communication with the first end of the blowing-suction tube, and
• a blowing-suction switching mechanism,
• wherein the blowing-suction switching mechanism is a linkage apparatus, the linkage apparatus is capable of driving a first end of the blowing-suction tube to be away from the air inlet portion or the air outlet portion of the volute by a preset distance and is capable of linking the volute to rotate relative to the grip portion to the blowing position in the blowing mode or to the suction position in the suction mode, when the volute rotates from the blowing position to the suction position, the linkage apparatus is capable of linking the first end of the blowing-suction tube to face the air inlet portion, and when the volute switches from the suction mode to the blowing mode, the linkage apparatus is capable of linking the first end of the blowing-suction tube to face the air outlet portion.

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

• a body, comprising a grip portion to be held by an operator and a main unit housing connected to the grip portion, the main unit housing being provided with an opening in communication with the outside;
• 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 a volute surrounding the fan, the volute comprising 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;
• 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 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 volute is pivotally disposed relative to the main unit housing and is rotatable between at least a blowing position in the blowing mode and a suction position in the suction mode, when the volute rotates to the blowing position, the air outlet opening is opposite the first end of the blowing-suction tube, and when the volute rotates to the suction position, the air inlet opening is joined to and in communication with the first end of the blowing-suction tube, and
• a blowing-suction switching mechanism,
• wherein the blowing-suction switching mechanism is a linkage apparatus, the linkage apparatus is capable of driving a first end of the blowing-suction tube to be away from the air inlet portion or the air outlet portion of the volute by a preset distance and is capable of linking the volute to rotate relative to the grip portion to the blowing position in the blowing mode or to the suction position in the suction mode, when the volute rotates from the blowing position to the suction position, the linkage apparatus is capable of linking the first end of the blowing-suction tube to face the air inlet portion, and when the volute switches from the suction mode to the blowing mode, the linkage apparatus is capable of linking the first end of the blowing-suction tube to face the air outlet portion.