Injection device for injecting a pharmaceutical substance, and injection loading part for such an injection device

An injection device (1), comprising

• a proximal part (5) which has a drive (7) to implement an injection, and having
• a distal part (13) which is configured to accommodate an injection loading part (3), which has a packaging means receiving part (17) and a primary packaging means (23) which held in the packaging means receiving part (17) and in which a pharmaceutical substance is received, wherein the pharmaceutical substance can be injected from the injection loading part (3) when the injection loading part (3) is arranged in the distal part (13), wherein
• the distal part (13) is designed in such a way that the injection loading part (3) can be inserted axially into the distal part (13), wherein
• the injection device (1) has a screen (15) which is designed and arranged in such a way that an injection needle (25) of the injection loading part (3) is concealed from a user during use of the injection device (1), wherein
• a proximal end face (37) of the distal part (13) has a loading opening (39) through which
• the injection loading part (3) can be inserted into the distal part (13), and wherein the injection device has a locking part (47) which can be inserted through the loading opening (39) into the distal part (13) and which is configured to contact a proximal contact surface (49) of the injection loading part (3), the locking part (47) having a base body (51) and at least one locking element (53) which is pivotably articulated on the base body (51) and which, in a first axial position inside the distal part (13), remote from a locking opening (59) which is formed in a peripheral wall (61) of the distal part (13), is pivoted into the base body (51), wherein the locking element (53) is configured to pivot out, in a second axial position inside the distal part (13), at the position of the locking opening (59), and pass through the locking opening (59) in order to block an axial displacement of the injection loading part (3).