3results about How to "Overcome cohesion" patented technology

The invention discloses a pasture seed uniform sowing device with high adaptability. The pasture seed uniform sowing device comprises a sowing box, a feeding bin is installed at the top end of the sowing box, discharging pipes are installed at the bottom end of the sowing box at equal intervals, a discharging adjusting assembly is installed in the sowing box, and a material shifting assembly is installed in the sowing box; the discharging adjusting assembly comprises a discharging area control unit installed in the discharging pipe, the discharging area control unit comprises a fixing ring installed on the inner wall of the discharging pipe, elastic pieces are installed on the inner wall of the fixing ring at equal angles and are arranged in a downward inclined mode, one end of each elastic piece is fixed to the fixing ring, and the other end of each elastic piece is arranged in a suspended mode. An arc groove is formed in the other end of the elastic sheet; a vibration motor is installed on the outer wall of the discharging pipe, and an anti-blocking assembly is installed in the feeding bin. According to the device, seeds can be uniformly discharged and sown, meanwhile, the sowing amount of the seeds in unit time is adjusted by changing the downward movement amount of the movable pressing plate, and the device is convenient to use.

This application belongs to the field of precast bamboo pile structures and discloses a sleeve-type precast bamboo pile structure, including a central bamboo pile and branch bamboo piles. The central bamboo pile is vertically inserted into the soil to bear vertical loads; the branch bamboo piles are inserted into the soil at a predetermined angle, with the lower end embedded and connected to the central bamboo pile, and the upper end extending outward in a direction away from the central axis of the central bamboo pile, thus forming a spatial force-bearing system. The inclined branch bamboo piles are equivalent to setting rigid barbs on the central bamboo pile in terms of mechanical transmission, and work together to create an "inverted cone soil locking" effect. When the pile is subjected to an upward pull force, the pressure exerted by each branch bamboo pile on the soil above and around it forces the pile foundation area to form an inverted cone-shaped soil plug or soil compression zone. Based on this mechanical mechanism, to pull out the pile, the self-weight and cohesion of the inverted cone-shaped soil must first be overcome, thereby significantly consuming the pull-out force and greatly improving the pull-out bearing capacity of the pile foundation.

The utility model belongs to the field of discharging bins, and particularly relates to a novel discharging structure of a discharging bin, which comprises the discharging bin, a feeding hole is arranged on one side of the top of the discharging bin, and a discharging hole is arranged at the bottom of one side of the discharging bin. The material guide plate is fixedly connected to an inner cavity of the discharging bin; the driving part is arranged on one side of the discharging bin; materials directly fall to the top of a material guide plate through a feeding hole, a plurality of second rotating rods rotate, the bottom of the material guide plate is impacted through a plurality of striking plates, vibration of the material guide plate is achieved, discharging is assisted, the materials can flow more rapidly in a discharging bin through vibration, and therefore the discharging speed is increased, the production efficiency is improved, and the practicability is high. According to the discharging bin, friction force and cohesion between materials can be overcome, the phenomenon that the materials are blocked in the discharging bin is reduced, it is guaranteed that the materials can be smoothly discharged from the discharging port, the materials are more evenly distributed in the discharging bin, and the materials are prevented from being accumulated in a local area.