4results about How to "Reduce pull-out force" patented technology

The cross-shaped pipe pulling device comprises a hydraulic device and a pipe pulling frame, the hydraulic device is used for providing pulling force, the pipe pulling frame is provided with four through holes or opening grooves used for detachably and fixedly installing a mold, and the center connecting lines of every two opposite through holes or opening grooves are distributed in a cross shape. By means of the distributed cross-shaped mold layout, compared with an existing barrel-shaped steel mold, the self weight of a single mold and the bonding force between the single mold and initial set concrete are obviously reduced, the needed pulling force is obviously reduced, and a smaller hydraulic device can be adopted for pulling; the probability that the mold cannot be pulled out or even is damaged due to the fact that the adhesive force between the mold and the node pile initial set concrete is too large in the pulling-out process is greatly reduced.

The invention relates to a lower clip strip (10) for connecting a vehicle glass (110) to a mating part (90), comprising a support rib (20) for positioning a positioning body (60) of the mating part, a first connecting region (30) for connecting the lower clip strip (10) to the vehicle glass (110), a second connecting region (40) for connecting the lower clip strip (10) to the mating part (90), and a sealing region (50) for sealing the lower clip strip (10) to the vehicle glass (110). The second connecting area (40) is used for connecting the lower clamping strip (10) and a matching component (90), the sealing area (50) is used for sealing and attaching vehicle glass (110) and the matching component (90), and the lower clamping strip is characterized in that the part, used for making contact with a positioning body (60) of the matching component (90), of the bearing rib (20) is a first contact part (21), the self-friction coefficient of the first contact part (21) is a first self-friction coefficient, and the first self-friction coefficient is 0.35 or below; and / or the portion, used for making contact with the positioning body (60) of the matching component (90), of the second connecting area (40) is a second contact portion (43), the self-friction coefficient of the second contact portion (43) is a second self-friction coefficient, and the second self-friction coefficient is 0.35 or below. According to the lower clamping strip (10), the matching part (90) can be conveniently and rapidly installed without large force, the matching part (90) is stable after being installed, and the matching part (90) can be conveniently and rapidly disassembled when needing to be disassembled.