Variable-pressure and non-negative-pressure water supply equipment

The utility model discloses variable-quantity variable-pressure non-negative-pressure water supply equipment which comprises a base, a water tank is fixedly installed at the upper end of the base, a pressure tank is installed on the water tank, a non-negative-pressure control cabinet and a pipeline assembly are installed at the upper end of the base, and an annular cleaning brush is arranged in the water tank. The annular cleaning brush abuts against the inner side wall of the water tank, a driving mechanism used for driving the annular cleaning brush is arranged in the water tank, a tank cover is hinged to the front end of the water tank, and connecting pipes are fixedly installed at the rear end of the water tank and the front end of the tank cover. The water tank can be cleaned conveniently and comprehensively. 本实用新型公开了一种变量变压无负压供水设备，包括有底座，所述底座的上端固定安装有水箱，所述水箱上安装有压力罐，所述底座的上端安装有无负压控制柜和管路组件，所述水箱内设有环形清洗刷，所述环形清洗刷与水箱内侧壁相抵接触，所述水箱内设有用于对环形清洗刷进行驱动的驱动机构，所述水箱的前端铰接有箱盖，所述水箱的后端和箱盖的前端均固定安装有连接管。本实用新型对水箱的清理较为方便且清理全面。