Anti-torsion device for a solar tracker with a rotation axis, and solar tracker comprising said anti-torsion device

An anti-torsion device of a solar tracker with a rotation axis, comprising:

• a coupling part fixedly attached at least rotationally with respect to the rotation axis of the solar tracker;
• an extension element arranged mechanically and fixedly attached to the coupling part, further extending radially and externally with respect to the coupling part;
• an actuator and a counter-actuator arranged in such a way that they are positionable in a locked position, where they are in contact with the extension element, and a released position, where they are separated with respect to the extension element;
• such that, in accordance with the locked position, the extension element is rotationally immobilised in such a way that the rotation of the coupling part is further prevented, and
• wherein the actuator and counter-actuator are in contact with the extension element when positioned in the locked position, and are separated with respect to the extension element when positioned in the released position,
• wherein the extension element comprises a strip and a connection part, the strip extending from the connection part and to an area between the actuator and the counter-actuator, and
• wherein there are two connection parts and two strips, the connection parts being angularly displaced relative to each other with respect to the coupling part such that, the anti-torsion device being arranged in the solar tracker, each of the connection parts is located in correspondence with one side of an imaginary plane for containing the rotation axis and a support axis for arranging the solar tracker on a fixing surface, while each of the strips extends from one of the connection parts and to the area between the actuator and the counter-actuator.