This invention discloses a high-efficiency dust catcher with a
composite structure of rubber pad and mesh, belonging to the field of pneumatic conveying technology. It includes a conveying
pipe, a dust filter
assembly installed on the inner wall of the conveying
pipe, and a conical sleeve fixedly connected to the inner wall of the conveying
pipe. A spring is fixedly connected to the side of the conical sleeve closest to the dust filter
assembly, and a movable ring is fixedly connected to the end of the spring furthest from the conical sleeve. This invention integrates the dust filter
assembly and the dust-catching fluororubber pad into the same conveying pipe, achieving integrated
filtration and one-way check function. This reduces connection points and leakage risks, eliminates dead zones in the pipeline and dust accumulation, and the dust filter assembly adopts a detachable
modular design. Replacement only requires loosening bolts and pulling out the filter screen by the
handle, without disassembling the entire pipeline. Simultaneously, the
differential pressure drive structure automatically controls the opening and closing of the rubber pad according to the
airflow direction, and the mesh constraint prevents the rubber pad from rolling over and falling off, improving sealing reliability and comprehensively enhancing
operational stability and maintenance convenience.