Patent attributes
A warning sign structure includes an activating mechanism and a stretching-retracting mechanism movably joined to the activating mechanism. The stretching-retracting mechanism includes a retractable unit connected to the activating mechanism and a light emitting unit movably disposed on a top of the retractable unit. When the vehicle breaks down, the activating mechanism drives a stretching-retracting mechanism to stretch its retractable unit to an appropriate height manually or automatically and turns on a light emitting unit. The light emitting unit emits light in a high position to warn the rear-coming vehicles. The driver can also detach the stretching-retracting mechanism and use the stretching-retracting mechanism as a hand-held warning sign or a traffic baton.
