Plugging device for steel bar connector

The utility model discloses a plugging device for a steel bar connector, which comprises two sleeves which are fixedly connected, and also comprises a plug which is used for plugging the sleeves, a plurality of sliding blocks are arranged in the sleeve in a sliding mode, a plurality of clamping blocks are fixedly arranged on the sliding blocks, clamping grooves corresponding to the clamping blocks are formed in the plug, the clamping blocks are connected with the clamping grooves in a clamped mode, the sleeve is rotationally provided with a plurality of bolts, and the bolts correspond to the sliding blocks one to one and are in threaded connection with the sliding blocks. The clamping block on the sliding block is arranged in the sleeve in a sliding mode, the clamping block is clamped with the clamping groove in the plug, the compression resistance effect during plugging is improved, when the reinforcing steel bars are connected, the connected reinforcing steel bars can be clamped through the clamping block a