Fixing device for sewage meter in pipeline

The utility model relates to the related technical field of sewage treatment, and discloses a fixing device for a sewage meter in a pipeline, which comprises a flow meter and deformation parts, a connecting structure is arranged on the end surface of each deformation part and is used for connecting a plurality of deformation parts end to end, and the connecting structure comprises a first lug part, a second lug part and a through hole; the first lug parts and the second lug parts are fixedly connected with the deformation parts, through holes are formed in the wall faces of the first lug parts and the wall faces of the second lug parts, the first lug parts and the second lug parts on the end faces of the multiple deformation parts are connected and locked to prolong the overall length, and the multiple deformation parts form a longer metal plate which is bent to be attached to the inner wall of the pipeline. Therefore, the flow meter can adapt to pipelines with different diameters within a certain range, the