Passive locking system for solar tracker

A passive locking system for solar trackers, comprising:

• a connecting rod (110) that has a first end (112) fixed to a rotation profile (200) of a solar tracker in a pivotal manner, and a second end (114) comprising a pin (116) integral with the same,
• a guide lock (120) fixed to a support post (300) and comprising an upper longitudinal edge (122) and a lower longitudinal edge (124) equidistant from each other along the entire length of the guide lock (120) and which further comprises an inner guide rail (126) in the form of a slot between the two upper (122) and lower longitudinal edges (124) and equidistant from both along the entire length of the guide lock (120), said guide rail (126) comprising teeth (127) in each of the two longitudinal contours of the rail (126) and with a separation between the teeth (127) of one contour and the opposite one, such that the separation between the teeth (127) of one contour and the opposite one allows the free passage of the pin (116) along the rail (126) during the rotational movement of the solar panel, and
• a suspension mechanism applied to the second end (114) of the connecting rod (110) and to the pin (116), such that the suspension mechanism absorbs a force in a direction substantially perpendicular to the longitudinal edges (122, 124) of the guide lock (120), the pin (116) remaining locked in the teeth when the absorption force of the suspension mechanism is exceeded.