| CPC A47C 27/082 (2013.01) [A61G 7/05769 (2013.01); F04D 29/462 (2013.01); A47C 27/08 (2013.01); A47C 27/081 (2013.01); A61G 7/05776 (2013.01); F04D 29/503 (2013.01)] | 7 Claims |
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1. An inflating pump for inflating and deflating an inflatable air bed having a first and a second air bag, comprising:
an enclosure including an exterior shell and an enclosing wall located in the exterior shell; the exterior shell internally defines a hollow space, and a discharge space is formed between the exterior shell and the enclosing wall; and an airflow passage is formed inside the enclosing wall;
an airflow switching mechanism located in the enclosure and including:
a fixed seat having an air-in passage, a first air delivery chamber, a second air delivery chamber, a discharge chamber and a passage chamber, which are not communicable with one another; the discharge chamber being communicable with the discharge space; and the passage chamber being communicable with the airflow passage; and
a turnable member being pivotally connected to the fixed seat and having a first outward guiding recess and a second outward guiding recess that are not communicable with each other; the first outward guiding recess being communicable with the air-in passage and being selectively aligned with at least one of the first air delivery chamber, the second air delivery chamber, the discharge chamber and the passage chamber; and the second outward guiding recess being aligned with remaining ones of the first air delivery chamber, the second air delivery chamber, the discharge chamber and the passage chamber that are not aligned with the first outward guiding recess;
an air blower being connected to between the enclosing wall and the air-in passage for pushing out airflow into the air-in passage; and
an air delivery pipe assembly including a first air delivery pipe for connecting to the first air bag and a second air delivery pipe for connecting to the second air bag; the first air delivery pipe being communicable with the first air delivery chamber, and the second air delivery pipe being communicable with the second air delivery chamber; and
wherein, the turnable member is turnable relative to the fixed seat for the airflow to selectively flow from the air-in passage into at least one of the first air delivery chamber, the second air delivery chamber, the discharge chamber and the passage chamber, such that the inflating pump can be switched among a full inflation mode, a partial inflation mode and a deflation mode;
wherein, in the full inflation mode, the first outward guiding recess is communicable with the first air delivery chamber and the second air delivery chamber while the second outward guiding recess is communicable with the discharge chamber and the passage chamber, such that the airflow supplied from the air blower flows through the first air delivery pipe and the second air delivery pipe into the first air bag and the second air bag, respectively;
wherein, in the partial inflation mode, the first outward guiding recess is communicable with the first air delivery chamber while the second outward guiding recess is communicable with the second air delivery chamber, the discharge chamber and the passage chamber, such that the airflow supplied from the air blower can flow through the first air delivery pipe into the first air bag; and
wherein, in the deflation mode, the first outward guiding recess is communicable with the discharge chamber while the second outward guiding recess is communicable with the first air delivery chamber, the second air delivery chamber and the passage chamber, such that the airflow supplied from the air blower flows to the discharge space and the air in the first and the second bag flows through the airflow passage into the air blower.
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