Capacitor convenient to install

A capacitor convenient to install comprises a top surface assembling and connecting cover plate of a sealing cover, the surface of the cover plate is provided with a first terminal, the surface of thecover plate is provided with an adjusting hole, the interior of the adjusting hole is connected with a second terminal in a sliding manner, the second terminal is installed on the top surface of an upper insulating block, and the second terminal is connected with a second insulating block in a sliding manner. The upper insulating block is arranged on the bottom face of the cover plate in an attached mode, the upper insulating block is used for blocking the adjusting hole, the second terminal, the lower conductive block and the core are electrically connected, and the first terminal is electrically connected with the core. According to the utility model, the distance between the first terminal and the second terminal can be changed along the adjusting hole, so that the installation requirements of different circui