Liquid dispensing device, in particular for watering animals

A liquid dispensing device comprising:

• a main body which defines a longitudinal cavity for passage of a liquid, said longitudinal cavity being configured for fluid communication with an external liquid source which selectively provides said liquid to an inlet of said main body for introducing said liquid into said longitudinal cavity, and an outlet for discharging said liquid from said longitudinal cavity;
• a valve body and an annular-shaped elastic sealing element arranged inside said longitudinal cavity, said valve body comprising a stem with a first portion which extends through said annular-shaped elastic sealing element and the outlet, the valve body further including a flange-shaped head which is biased so as to press against said annular-shaped elastic sealing element by an elastic thrust element, and wherein said stem is adapted to be switched between a first closed position, in which flow of said liquid downstream of said annular-shaped elastic sealing element is prevented by said flange-shaped head being biased against the annular-shaped elastic sealing element, and a second open position in which the flow of said liquid downstream of said annular-shaped elastic sealing element is enabled when the flange-shaped head is displaced from the annular-shaped elastic sealing element;
• and
• wherein said elastic thrust element comprises a tubular-shaped engagement portion with an outer surface and an inner surface, the inner surface defining a substantially cylindrical engagement cavity in which there is housed a second portion of said stem opposite to said first portion of the stem, wherein said elastic thrust element further comprises an annulus-shaped base which extends radially from said outer surface of said tubular-shaped engagement portion and defines an abutment surface placed in contact with said flange-shaped head of said valve body on an opposite side with respect to said annular-shaped elastic sealing element.