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预制检查井模具的主要构造是按照检查井预制件内部形状而言，因为预制检查井模具所要包含的功能不仅仅是井体，还要有连接孔的位置以及爬梯孔的位置，往往每套模具根据内径大小匹配对应的管道的大小。
The main structure of prefabricated inspection well mould is according to the internal shape of prefabricated parts of inspection well, because the function of prefabricated inspection well mould is not only the well body, but also the position of connecting hole and climbing ladder hole. Often, each set of mould matches the corresponding pipe size according to the size of inner diameter