The present invention relates to an automatic cap-decap mechanism for
reagent bottles of an immunoanalyzer apparatus, comprising a decap mechanism (100) and a cap mechanism (200) in
reagent station (1) of the immunoanalyzer apparatus; the decap mechanism (100) and the cap mechanism (200) are both configured for operating on a cap of a
reagent bottle (2). The cap comprises a hinge-shaped plate cap (5), a snap joint (4) and a decap spring (6); one side of the hinge-shaped plate cap (5) is hinged on the
reagent bottle mouth, and the other side of the hinge-shaped plate cap (5) comprises the snap joint (4); the snap joint (4) is configured for tightly clamping the hinge-shaped plate cap (5) on the
reagent bottle mouth; one end of the decap spring (6) is mounted on a holding structure of the
reagent bottle, and the other end of the decap spring (6) connects to a hinge pin of the hinge-shaped plate cap (5), so that when the snap joint (4) is not snapped in close position, the decap spring (6) is configured to move the hinge-shaped plate cap (5) so as to
expose the
bottle mouth in decap condition.The decap mechanism (100) comprises: a first roller seat (104) located at the upper part of the reagent
bottle (2), and a rotating rod (108) horizontally inserted into the roller bearings provided on the first roller seat (104), a first motor (103) for timely driving the rotating rod (108), and at least one first ejection rod (109) driven by the rotating rod (108) to move upward and downward; the first ejection rod (109) is configured for snapping the snap joint (4) in open position, so as to decap the reagent bottle (2).The cap mechanism (200) comprises: a rocker (210) rotatably installed on the roller bearings of a rocker holder (209), and a knockout plate (204) connected on one end of the rocker (210); the knockout plate (204) comprises an electric
magnet (203); the cap mechanism (200) further comprises at least one roller baffle (211) connected on the other end of the rocker (210), the roller baffle (211) comprising a roller (11) at the bottom, the knockout plate (204) being configured for acting on the rocker (210) under the action of a spring when the electric
magnet (203) is not powered, so as to maintain the roller (11) of the roller baffle (211) on the hinge-shaped plate cap (5); the roller (11) is configured for snapping the snap joint (4) in close position, so as to cap the reagent bottle (2).The present invention also relates to an immunoanalyzer apparatus and a regent bottle (2).