Air-tight seal flashboard gate blocking method

The invention relates to an air-tight seal flashboard gate blocking method which comprises the following steps: step 1, a limiting plate and a base are arranged in a well body, so that a water passing hole is formed in the corresponding position of a sewage pipe, and a gate groove is formed in the well body; 2, inserting plates are placed in the gate grooves, and the inserting plates are located at the positions corresponding to the water passing holes; and thirdly, the inserting plate is inflated, and the two faces of the inserting plate are tightly attached to the inner wall of the well body and the limiting plate correspondingly. 本发明为一种气密封插板闸门封堵方法，包括以下步骤：步骤一，在井体内设置限位板、底座使污水管对应位置形成过水孔，并且使得井体内具有闸槽；步骤二，在闸槽内放入插板，使插板处于过水孔对应位置；步骤三，对插板充气，使插板两面分别与井体内壁、限位板紧密贴合。