66results about How to "Change impact" patented technology

The invention discloses a natural gas pipe automatic cleaner. The natural gas pipe automatic cleaner comprises a linkage device, a connecting rod, a moving wheel, a height extension adjusting supportleg, a protective cover, a machine body, a rocking rod, a handle, a cleaning head and a leg cover; the side surfaces of the top end of the height extension adjusting support leg are respectively fixedon the two sides of the machine body; the two ends of the connecting rod penetrate through the bottom of the left end of the height extension adjusting support leg to connect into the moving wheel; and the bottom of the protective cover is welded with the bottom of the machine body. The linkage device of the natural gas pipe automatic cleaner can control the cleaning diameter of a fixed brush through an internal mechanical structure to finally adapt to the internal diameter of a natural gas pipe; meanwhile, the height extension adjusting support leg can be automatically adjusted under the condition of external force, so that the practical value of the cleaner can be improved, and meanwhile, the working efficiency is improved; and the transverse distance of the fixed brush can be adjustedunder the condition of hand shaking by a middle connecting device, so that the use convenience is improved.

The invention discloses a chemical container inner side wall cleaning device. The device comprises a main body coiled plate, a rotating shaft connected with the main body coiled plate and a pluralityof bristles. The main body coiled plate is an elastic member, the main body coiled plate comprises a fixed end and a free end which are oppositely arranged in the coiling direction thereof, and the main body coiled plate comprises an outer end face and an inner end face which are oppositely arranged in the thickness direction thereof. The fixed end is connected with the rotating shaft, and the main body coiled plate is coiled around the axial direction of the rotating shaft. A plurality of extending cavities extending in the coiling direction of the main body coiled plate are formed in the inner end face. The outer end face is connected with the bristles. The outer end face is provided with a plurality of fluid outlets and inlets, and the fluid outlets and inlets are connected with a fluidextraction cavity. According to the device, the coiling degree of the main body coiled plate is controlled through the extending cavities, so that the device adapts to inner diameters of different containers and is high in universality; and the main body coiled plate is coiled and expanded to drive the bristles on the main body coiled plate to make contact with the inner side walls of the containers to achieve brushing and cleaning.