Liquid dispensing dosing device for a liquid receptacle

A liquid dispensing dosing device for a liquid receptacle with a dispensing neck that can be closed with a cap, the dosing device comprising:

• first coupling means (12) for coupling the dosing device to a neck (5) of a liquid receptacle;
• a liquid reservoir (1) comprising a liquid inlet hole (3), the liquid inlet hole (3) being arranged to be inserted into the liquid receptacle when the dosing device is coupled by means of the first coupling means (12);
• a cover (2) for the liquid inlet hole (3), the cover (2) and the reservoir (1) being slidably connected;
• in which the reservoir (1) comprises a top, a bottom and a side wall that joins the bottom to the top, wherein the top is open to the outside, the side wall comprises the liquid inlet hole (3) and the bottom comprises a wall that extends to the side wall, preventing liquid from entering below the liquid inlet hole (3),
• the dosing device having:
• a first configuration wherein the cover (2) covers the liquid inlet hole (3) of the reservoir (1), preventing liquid from passing through the liquid inlet hole (3), the liquid reservoir (1) comprises a protrusion (8) configured to come in contact in a leak-tight manner with the cover (2) in the first configuration,
• a second configuration wherein the cover (2) does not cover the liquid inlet hole (3), allowing liquid to enter the liquid reservoir (1) through the liquid inlet hole (3);
• second coupling means (29, 88) for coupling to the cap (T) of the liquid receptacle configured to be pressed by the cap (T) in a closure of the dispensing neck (5) so as to cause sliding between the liquid reservoir (1) and cover (2), going from the first configuration to the second configuration;
• return means (10, 17, 22, 24, 25) for returning from the second configuration to the first configuration and configured to cause sliding between reservoir (1) and cover (2), going from the second configuration to the first configuration by releasing the pressure exerted by the cap (T) on the second coupling means for coupling to a further cap (29) at the opening of the dispensing neck (5);
• characterized in that the return means (10, 17, 22, 24, 25) are adopted on the cover (2) as part of the cover (2).