An insect protection device with a frame, comprising - at least two first frame struts (1.1, 1.2) and - at least two second frame struts (2.1, 2.2), wherein • the first frame struts (1.1, 1.2) are each connected at their ends to a second frame strut (2.1, 2.2) and the second frame struts (2.1, 2.2) are each connected at their ends to a first frame strut (1.1, 1.2) and • the first frame struts (1.1, 1.2) and the second frame struts (2.1, 2.2) are arranged at a right angle with respect to one another in a frame plane in an assembled position, and with an insect protection net which is fastened in or on the frame, characterised in that - the two first frame struts (1.1, 1.2) and/or the two second frame struts (2.1, 2.2) are of invariable length, - the connections in each case between a first frame strut (1.1, 1.2) and a second frame strut (2.1, 2.2) each have a rotary joint having at least one axis of rotation (9, 10), wherein - the rotary joints are configured such that • in an initial position the two first frame struts (1.1, 1.2) and the two second frame struts (2.1, 2.2) are oriented parallel to one another, and • the frame is transferrable into the assembled position by pivoting the frame struts (1.1, 1.2, 2.1, 2.2) relative to one another about the axes of rotation (9, 10) of the rotary joints. - at least two first frame struts (1.1, 1.2) and - at least two second frame struts (2.1, 2.2), wherein • the first frame struts (1.1, 1.2) are each connected at their ends to a second frame strut (2.1, 2.2) and the second frame struts (2.1, 2.2) are each connected at their ends to a first frame strut (1.1, 1.2) and • the first frame struts (1.1, 1.2) and the second frame struts (2.1, 2.2) are arranged at a right angle with respect to one another in a frame plane in an assembled position, and with an insect protection net which is fastened in or on the frame, characterised in that • the first frame struts (1.1, 1.2) are each connected at their ends to a second frame strut (2.1, 2.2) and the second frame struts (2.1, 2.2) are each connected at their ends to a first frame strut (1.1, 1.2) and • the first frame struts (1.1, 1.2) and the second frame struts (2.1, 2.2) are arranged at a right angle with respect to one another in a frame plane in an assembled position, - the two first frame struts (1.1, 1.2) and/or the two second frame struts (2.1, 2.2) are of invariable length, - the connections in each case between a first frame strut (1.1, 1.2) and a second frame strut (2.1, 2.2) each have a rotary joint having at least one axis of rotation (9, 10), wherein - the rotary joints are configured such that • in an initial position the two first frame struts (1.1, 1.2) and the two second frame struts (2.1, 2.2) are oriented parallel to one another, and • the frame is transferrable into the assembled position by pivoting the frame struts (1.1, 1.2, 2.1, 2.2) relative to one another about the axes of rotation (9, 10) of the rotary joints. • in an initial position the two first frame struts (1.1, 1.2) and the two second frame struts (2.1, 2.2) are oriented parallel to one another, and • the frame is transferrable into the assembled position by pivoting the frame struts (1.1, 1.2, 2.1, 2.2) relative to one another about the axes of rotation (9, 10) of the rotary joints.