Online energy consumption detection device

The utility model discloses an on-line energy consumption detection device which comprises a back plate capable of being fixedly installed on a vertical plane such as a wall body, guide rails are oppositely arranged on the two sides of the front face of the back plate with the center as the center, a sliding frame capable of sliding in the length direction of the guide rails is arranged between the two sets of guide rails, and first rotating holes are formed in the opposite side walls of the sliding frame. A first corner bracket is arranged between the two sets of opposite first rotating holes, first rotating shafts with one ends inserted into the first rotating holes are arranged at the ends of the two sides of the first corner bracket respectively, and mounting holes allowing bolts to penetrate through are formed in the two sides of the upper end of the first corner bracket in a penetrating mode. According to the energy consumption on-line detection device, the horizontal energy consumption on-line monitori