Antenna having an automatic telescopic rod and an alarm in a locked state to avoid bending of the rod

The present invention provides an antenna having an automatic telescopic rod and an alarm in a locked state to avoid bending of the rod, which can be bent and retracted to the same position without damage. It also provides an antenna that locks itself in a specific position under the action of a continuous force, and the user can manually or automatically retract it back to the original position. 本发明提供一种具有自动伸缩杆和锁定状态下的警报以避免杆弯曲的天线，其能够弯曲和缩回到相同位置而不会损坏。它还提供了在持续力的作用下将其自身锁定在特定位置的天线，并且使用者可以手动地或自动地使其缩回到原始位置。