Quick coupling for pipe pile

摘要

The present invention relates to a quick coupling for pipe pile, comprising an upper end plate, a lower end plate and a screw hook made of spring steel for coupling the upper and lower end plate, a plurality of tapped holes are uniformly provided on the upper end plate, a plurality of holes corresponding to the tapped holes are provided on the lower end plate, a lock hole is positioned at the lower portion of the hole, while the cross-section area of the lock hole is bigger than the cross-section area of the hole. One end of the screw hook is provided with a screw end mating with the tapped hole on the upper end plate, while the other end is provided with a hook end mating with the lock hole on the lower end plate, whereby the upper and lower end plate can be coupled firmly.

主权项

1. A quick coupling for pipe pile, comprising an upper end plate, a lower end plate and a screw hook coupling the upper and lower end plates; a plurality of tapped holes are uniformly provided on the upper end plate, and a plurality of holes corresponding to the tapped holes are provided on the lower end plate; the screw hook has two ends, one end is a screw end mating with one of the tapped holes on the upper end plate, while the other end is a hook end mating with the holes on the lower end plate;
the quick coupling configured to couple an upper pile and a lower pile, the upper end plate is fixed onto a lower end surface of the upper pile, the lower end plate is fixed onto the upper end surface of the lower pile, the upper end plate and the lower end plate have identical cross-sections to the cross-section of the piles, the screw end is secured to one of the tapped holes on the upper end plate, and then the hook end is inserted into one of the holes on the lower end plate, whereby the upper and lower end plates are coupled firmly; and each hole on the lower end plate has an internal lock step inside the hole.