Plug-in connector for connecting pipes for liquids or gaseous media

A method for producing a plug connection by means of a plug connector, comprising:

• providing the plug connector including:
• a connector body which has at least a first casing section which forms a receiving space for receiving a part of a mating plug connector, wherein at least two passages are formed in the first casing section;
• a locking element which is provided for securing the plug connector relative to the mating plug connector, wherein the passages in the connector body serve to accommodate the locking element;
• an indicator element which has an indicator surface, wherein the indicator element is displaceable between a rest position, in which the indicator surface is at least partly covered, and an indicator position, in which the indicator surface is visible, wherein a spring element is formed which pretensions the indicator element in a direction of the indicator position,
• wherein the indicator element is coupled to a first latching element and a second latching element, wherein the first latching element is configured to hold the indicator element in the rest position against a spring force of the spring element and wherein the second latching element is configured to hold the indicator element in an intermediate position between the rest position and the indicator position against the spring force of the spring element;
• providing a mating plug connector, wherein the mating plug connector has a cone and a securing groove;
• inserting the mating plug connector into the plug connector, wherein the locking element and the first latching element come to rest on the cone and are pressed outwards by axial insertion of the mating plug connector into the plug connector, wherein the indicator element is displaced from a rest position into the intermediate position at a first insertion depth of the mating plug connector, wherein in the intermediate position, the second latching element cooperates with the locking element, and the indicator element is held in the intermediate position by the locking element, wherein upon further axial insertion of the mating plug connector into the plug connector, the locking element falls into the securing groove and the second latching element is released, whereby the indicator element is displaced into the indicator position by the spring element.

A plug connector for connecting lines for liquid or gaseous media, comprising:

• a connector body which has first casing section which forms a receiving space for receiving a part of a mating plug connector, wherein passages are formed in the first casing section;
• and
• a locking element which is provided for securing the plug connector relative to the mating plug connector, wherein the passages in the connector body serve to accommodate the locking element;
• wherein an indicator element is formed which has an indicator surface, wherein the indicator element is displaceable between a rest position, in which the indicator surface is at least partly covered, and an indicator position, in which the indicator surface is visible,
• wherein a spring element is formed which pretensions the indicator element in a direction of the indicator position and wherein the indicator element is coupled to a first latching element and a second latching element,
• wherein the first latching element is configured to hold the indicator element in the rest position against a spring force of the spring element, and
• wherein the second latching element is configured to hold the indicator element in a position between the rest position and the indicator position.