摘要：【中文】本实用新型公开了一种方管防水快接装置，所述方管防水快接装置由壳体、连接结构和密封结构组成，所述壳体设置在连接结构外侧，所述连接结构由中心轴、中心定位板和依次对称分布在轴上的弹簧、弹簧顶板、螺母、滑块座、滑块和四面锥形台体组成，其中滑块安装在滑块座上可以沿径向位移，四方锥形台体固定在中心轴两端且与滑块的斜面相合，所述中心轴上还有与螺母的螺纹相合的螺纹，当螺母拧动时可以带动锥形台体与滑块座相对位移撑开滑块，利用摩擦力将两根方管连接在一起。通过上述方式，本实用新型能够减少电焊工作负担，实现方管的快速连接而且拆卸方便，不伤表面。所述连接件上还装配有密封结构，可以防止水分渗入锈蚀，显著的提高了方管的使用寿命。 【EN】The utility model discloses a waterproof device that connects soon of side pipe, waterproof device that connects soon of side pipe comprises casing, connection structure and seal structure, the casing sets up in the connection structure outside, connection structure comprises center pin, central locating plate and the epaxial spring of symmetric distribution in proper order, spring roof, nut, take-up housing, slider and four sides toper stage body, and wherein the slider is installed and to be followed radial displacement on the take-up housing, and the square toper stage body is fixed at the center pin both ends and is closed mutually with the inclined plane of slider, the screw thread that closes mutually with the screw thread of nut in addition on the center pin can drive the toper stage body and strut the slider with take-up housing relative displacement when the nut is twisted and is moved, utilizes frictional force to put together two square pipe connections. In this way, the utility model discloses can reduce electric welding work burden, realize the high-speed joint of side pipe and dismantle the convenience, do not hinder the surface. The connecting piece is also provided with a sealing structure, so that the connecting piece can prevent moisture from permeating and rusting, and the service life of the square pipe is obviously prolonged.