Foundation pit guardrail

The utility model discloses a foundation pit guardrail which comprises three outer frames and two stand columns, the two stand columns are arranged on the outer sides of the corresponding outer frames, a connecting plate is arranged between every two adjacent outer frames, the two sides of each connecting plate are connected with the corresponding outer frames through hinges, and reinforcing mechanisms are arranged on the surfaces of the outer frames. The reinforcing mechanism comprises a reinforcing assembly and an impact assembly; through designed connecting plates, a plurality of fence bodies can be connected through hinges, so that the device can be bent, a foundation pit needing to be changed in direction is conveniently protected, the flexibility of the device is improved, through designed structures such as fixing plates, sliding holes, reinforcing rods and mounting blocks, each outer frame can be limited, and the safety of the device is improved. And the overall stability of the device is improved, an