| 摘要 |
A sealing structure of a watt-hour meter is provided to seal a terminal cover and a terminal block by combining a sealing screw having a star-shaped head unit to a sealing hole of the terminal cover formed on the upper side of the terminal cover. A structure for sealing a terminal block(31) and a terminal cover(32) on a watt-hour meter comprising a base(21), a cover(22), the terminal block, and the terminal cover is composed of a plurality of sealing holes(310) formed on the terminal block; a sealing screw(40) installed and fixed to the sealing hole; and a sealing tool(50) for combining the sealing screw. The width and height of the sealing hole correspond to the sealing screw and the sealing tool. Head units of the sealing screw and the sealing tool are formed like a star or a specific shape, so that the sealing screw and the sealing tool are opened or closed only by the special sealing tool not by other tools. |
