Cabin excavating pump with bidirectional positioning structure between pump body and bracket

The utility model relates to a cabin excavating pump with a bidirectional positioning structure between a pump body and a bracket, in particular to a large cabin excavating pump. The cabin excavating pump comprises a bracket body; a bearing assembly is fixedly arranged on the bracket body and supports a pump shaft; the pump body is fixed at the front end of the bracket body; and an impeller is arranged in the pump body and is arranged at the front end of the pump shaft. The cabin excavating pump is characterized in that the front end surface of the bracket body has a plane structure; the rear end surface of the pump body also has a plane structure; the front end surface of the bracket body is connected with the rear end surface of the pump body; the front end surface of the bracket body and the rear end surface of the pump body are provided with hinged bolt holes which are formed in a matched manner; and the hinged bolt holes are matched with hinged bolts. Contact surfaces of the pump body and the bracket bod