检查井是用在建筑小区(居住区、公共建筑区、厂区等)范围内埋地塑料排水管道外径不大于800mm、埋设深度不大于6m，一般设在排水管道交汇处、转弯处、管径或坡度改变处、跌水处等，为了便于定期检查、清洁和疏通或下井操作检查用的塑料一体注塑而成或者砖砌成的井状构筑物。
Inspection wells are built with plastic drainage pipes buried in residential areas (residential areas, public buildings, factories, etc.) whose outer diameter is not more than 800mm and buried depth is not more than 6m. They are generally located at the junction, turning point, change of pipe diameter or gradient, drop point, etc. In order to facilitate regular inspection, cleaning and dredging, or plastic integral injection moulding for downhole operation and inspection, or bricklaying. A well-shaped structure.
塑料一体注塑检查井是指构成检查井的主要井座部分采用一次性注塑成型，井筒插口采用360度环型承载平台，井身及井座底部采用网状加强筋，各承插口采用环型加强筋设计。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 injection inspection wells refer to the one-time injection molding of the main wellbore part of the inspection wells. The wellbore socket adopts 360 degree ring bearing platform, the wellbore and the bottom of the wellbore adopt reticulated reinforcing bars, and each socket socket adopts ring www.hrbzhoucheng.com.cn www.luyuanshi.com.cn www.fapaoji.net.cn www.shexinji.com.cn www.kexinji.com.cn www.jiaozhuji.com.cnreinforcing bars design. 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.