Cover body mechanism for gluing and glue bottle thereof

The invention discloses a cover body mechanism for gluing and a glue bottle thereof. The cover body mechanism comprises an inner cover, an outer cover and an inner plug, the inner cap is used for being connected with a bottle body of a glue bottle, the outer cap is arranged outside the inner cap in a covering mode, and the inner plug is arranged in the inner cap in a sleeved mode and can rotate in the circumferential direction of the inner cap. A first glue outlet is formed in the inner plug, the inner plug extends out of the upper end of the inner cover, and the extending part of the inner plug interferes with a second glue outlet in the outer cover; the outer cover can ascend and descend relative to the inner cover, the outer cover ascends relative to the inner cover, the second glue outlet is exposed and is communicated with the first glue outlet so that glue can flow out, the outer cover descends relative to the inner cover, and the second glue outlet is blocked by the inner plug; the sealing structure ha