Level gauge with additional laser

The level gauge comprises a level gauge body, a top frame is fixed to the top of the level gauge body, an insertion block is connected to the top frame in an inserted mode, a transverse rod is transversely connected to the insertion block in an inserted mode, a spring is arranged on the transverse rod in a sleeved mode, the spring is arranged in the insertion block, a transverse opening is formed in one side of the top frame in a penetrating mode, and a vertical groove is further formed in one side of the top frame. The vertical groove is perpendicular to the transverse opening; a vertical plate is fixedly mounted at one end of the transverse rod; according to the scheme, the inserting blocks are inserted into the top frame, the rotating blocks are rotated to enable the vertical plates to be inserted into the vertical grooves under the action of the springs, the inserting blocks can be limited and fixed, and the laser can be conveniently mounted and dismounted; the inserting strip is inserted into the vertica