Locking mechanism at an electrical connection assembly

A locking mechanism at an electrical connection assembly, comprising:

• a first locking portion (3, 103) which is attached to an elastically deformable locking arm (2, 102) which forms part of a first element (1, 101) of the connection assembly;
• a second locking portion (32, 132) which is connected to a second element (30, 130) of the connection assembly and which can be made to engage or to be disengaged from the first locking portion (3, 103);
• a securing slide (12, 112) which is linearly adjustably guided in a guide (8, 108), which is urged by a spring element (18, 118) into a first position in which it prevents the locking arm (2, 102) from being elastically deformed and which comprises a control face (23, 123) which is loadable by the second element (30, 130) in such a way that the securing slide (12, 112) can be transferred into a second position in which it permits the locking arm (2, 120) to be elastically deformed,
• wherein the guide (8, 108) is associated with the first element (1, 101), wherein the locking arm (2, 102), in a deforming direction (5, 105), is elastically deformed towards the guide (8, 108) from an untensioned position and wherein the securing sleeve (12, 112) is adjustably guided in a setting direction (6, 106) between the locking arm (2, 102) and the guide (8, 108) transversely to the deforming direction (5, 105).