Paint-spraying device for producing a paint spray jet and method for venting a paint container

A method for ventilating a paint container of a paint-spraying device that generates a paint spray jet, the method comprising:

• obtaining the paint-spraying device, the paint-spraying device comprises a front end and a back end, wherein the front end and the back end are secured to one another with a sleeve nut,
• actuating the sleeve nut to a first rotational position,
• pulling the back end and the front end apart by a first distance corresponding to the first rotational position of the sleeve nut, such that a shut-off valve is at least partially opened, wherein the shut-off valve is formed on the front end as a valve housing and on the back end as a closure component,
• actuating the sleeve nut to a second rotational position different than the first rotational position,
• pulling the back end and the front end apart further by a further distance, corresponding to the second rotational position, such that a needle, which is received in the front end and closes a nozzle opening of a nozzle element, is released from the back end.

A paint-spraying device for generating a paint spray jet comprising:

• a front end comprising a front main element, the front main element having a front outer flange and an inner flange,
• a paint nozzle module configured to be received by the inner flange of the front main element,
• a back end comprising a back main element, the back main element having a back outer flange and a receiving flange,
• wherein the front outer flange of the front main element of the front end is received by the receiving flange of the back main element of the back end such that the front end and the paint nozzle module are guided displaceably, in a manner secured against rotation, in the receiving flange of the back main element counter to a pressure force exerted on a needle of the paint nozzle module by a plunger, and is fixed in a manner dependent on a rotational position of a sleeve nut that is screwed onto a thread that forms the front outer flange of the front main element.