Opening/closing and vaporizing mechanism for a bottle, for example of perfume, and such a bottle

Opening/closing and vaporizing mechanism for a bottle, including a vaporization pump (9) configured to be partially inserted into the bottle (1), a push button (8) connected to the vaporization pump and configured to operate it, characterised in that it includes a collar (6) configured to be connected on the bottle by a rotational movement of the collar relative to the bottle, with the push button which is mounted movable in translation above and relative to the collar, and a sleeve (7) mechanically connected to the collar and mounted movable in translation around and relative to the collar and to the push button, between a first position, known as the upper position, in which the push button is inaccessible and a second position, known as the lower position, in which the push button is accessible and can be operated by a user;

• with at least one of the sleeve and the collar which is provided with at least one guide groove (37), at least one retaining notch (39) formed in the guide groove and at least one stop notch (40) formed in the guide groove and facing the at least one retaining notch, while at least the other of the collar and the sleeve is provided with at least one complementary stop and guide notch (18) formed so as to project and face the at least one guide groove;
• and with the opening/closing and vaporizing mechanism which is configured such that, in the first position known as the upper position of the sleeve, the at least one complementary stop and guide notch is sandwiched between the at least one stop notch and the at least one retaining notch such that the sleeve is maintained in the upper position with the push button inaccessible, whilst in the second position known as the lower position, the at least one complementary stop and guide notch is at a distance from the at least one stop notch having been urged against the at least one retaining notch such that the push button is accessible.