Patent ID: 9510717
Filing Date: 2016-12-06
CPC Classification: A47L

Claim Text:
1. A self-moving dust suction apparatus to facilitate cleaning, comprising: a dust suction base including an air drawing mechanism to draw airflow, a housing space corresponding to the air drawing mechanism, an opening communicating with the housing space and a trigger driven mechanism; the trigger driven mechanism including a trigger unit depressible by a user, a latch element driven by the trigger unit to situate at a latch position and a release position, and at least one first elastic element to provide a resilient force to make the latch element at the latch position in normal condition, wherein the trigger unit includes a button disposed on the dust suction base for a user to press and a fastening element hinged on the dust suction base and triggered by the button to switch the latch element between the latch position and the release position; wherein the latch element includes a connection portion to latch on the fastening element, at least one first latch portion and at least one second latch portion driven by the connecting portion, and at least one housing channel between the first latch portion and the second latch portion to disposed the first elastic element; a detachable dust collection unit which is held in the housing space through the opening and includes a dust suction inlet corresponding to the air drawing mechanism and at least one first coupling portion coupled with the latch element at the latch position and separated from the latch element at the release position, the first coupling portion including at least one first latch hook coupled with the first latch portion and at least one second latch hook coupled with the second latch portion; and an airflow directing element which is disposed on the detachable dust collection unit and includes an elastic barrier plate partially surrounding the dust suction inlet and extending towards a floor from the detachable dust collection unit to confine direction of the airflow flowing into the dust suction inlet; wherein while the latch element is at the latch position, the first latch portion is latched on the first latch hook and the second latch portion is latched on the second latch hook; while the first elastic element is compressed by the latch element, the latch element is at the release position, and the first latch portion is disengaged from the first latch hook and the second latch portion is disengaged from the second latch hook.