塑料检查井是指构成检查井的主要井座部分采用高分子树脂材料一次性注塑成型。根据接管数和角度不同有起始井座、直通井座、45度弯头井座、三通井座、四通井座等。为了适应各种排水状况，塑料检查井同时配套有变径接头、汇流接头、井筒多接头等与之配套的塑料一体注塑成型配件。以保障整个排水系统的流畅和密封性。
Plastic inspection wells refer to one-time injection moulding of polymer resin material in the main wellbore part of inspection wells. According to the number and angle of nozzles, there are starting wellbore, through wellbore, 45 degree elbow wellbore, three-way wellbore, four-way wellbore and so on. In order to adapt to various drainage conditions, plastic inspection wells are equipped with variable diameter joints, confluence joints, wellbore multi-joints and other plastic integral injection moulding accessories. To ensure the fluency and sealing of the whole drainage system.
塑料检查井以高分子树脂为原料，采用组合结构，一般是由检查井井座、井筒、井盖等组成，分为污（废）水检查井和雨水检查井。污水井一般设有流槽，便于污物排放顺畅，雨水井（一般设有供泥砂沉淀的沉泥室）以方便后期的清理和维护。
Plastic inspection wells are made of macromolecule resin and adopt combined structure. They are generally composed of inspection wellbore, wellbore, well cover, etc. They are divided into pollution (waste) water inspection wells and rainwater inspection wells. Sewage wells are usually equipped with flow tanks to facilitate the smooth discharge of sewage. Rainwater wells (usually equipped with mud chambers for mud and sand sedimentation) are convenient for later cleaning and maintenance.