2results about How to "Avoid soil" patented technology

The utility model relates to electric power pipe technical field especially a kind of recycled material CPVC electric power pipe, including first straight pipe and round block, the inner wall front of first straight pipe is fixedly connected with the outer wall of round block, the outer wall of round block is processed with multiple through ports, the upper end surface of first straight pipe is connected with protective structure, the outer wall rear of protective structure is connected with sheath, through the front and rear movement of second straight pipe in protective structure, it will be the front and rear sliding of sleeve plate in the outer wall of curved plate, curved plate and sleeve plate will change with the length change of telescopic pipe, while curved plate cooperates sleeve plate will shield the top of telescopic pipe, prevent soil directly to hold telescopic pipe, prevent the fracture of electric power pipe and telescopic end connecting place, avoid the soil in the inside of electric power pipe.

The utility model discloses a pressure-adjustable double-disc furrowing seeder and a reclamation seeder, the seeder comprises a main support leg, the bottom of the main support leg is provided with furrowing double discs, and the front end of the main support leg is rotatably connected with one end of a pair of rotary connecting pieces; a pressing mechanism is installed at the rear end of the main supporting leg, and a telescopic piece is arranged between the main supporting leg and the pressing mechanism. And by arranging the pressing mechanism with the telescopic piece, an operator can adjust the pressing force of the pressing single wheel on the ground according to the soil texture condition. And through the cooperation of the pressing single wheel and the ditching double discs, each seed can be subjected to stable ditching treatment and pressing landfill, so that the seeding quality is ensured. And the double-disc furrows arranged in the front-back direction can prevent soil from being clamped, and the effective soil dividing effect is achieved. And meanwhile, the main supporting leg can be timely recovered to the initial position after changing along with the height of the soil layer by rotating the elastic piece arranged between the connecting pieces.