Portable signal generator for automatic site construction

The utility model provides a portable signal generator for automatic site construction, and relates to the technical field of signal generators. The portable signal generator for automatic site construction comprises a signal generator body, two first protective covers are arranged on one side of the signal generator body, racks are fixedly connected to the two sides of each first protective cover, and first protruding blocks are fixedly connected to the bottoms of the racks. According to the portable signal generator for automatic on-site construction, at the moment, a second convex block is clamped on one side of a rack under the elastic force effect of a first spring, so that a first protective cover can be folded into a second protective cover, and then the signal generator body is conveniently stored and stored; the structure is beneficial for protecting the external plug connected with the signal generator body, the external plug is prevented from being damaged by external force, the service life of the