Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a stable ladder for climbing trees and belongs to equipment for climbing trees. The stable ladder comprises standing columns, wherein a crossbeam is arranged at the upper ends of the standing columns, fixing seats are respectively disposed on the upper surface and the lower surface of the crossbeam, a base is disposed on one side of the lower end of each standing column, a support rack is rotatably disposed on each base, and each base is connected with the corresponding support rack through a pin; one side, below the fixing seat, of the crossbeam is provided with a clamp ring, and the two lateral sides of the clamp ring respectively attach to the inner lateral sides of the two fixing seats; the clamp ring is connected with the fixing seats through rotary shafts; an antiskid pad is adhered to the inner lateral side of the clamp ring; springs are disposed on the outer lateral side of the clamp ring, and the other ends of the springs are fixed on the lateral side of the crossbeam. The stable ladder for climbing trees has the advantages that slipping between the upper end of the ladder and a trunk when a user uses the ladder to climb a tree can be avoided, inclination of the upper end of the ladder and inclination between the lower end of the ladder and the ground are avoided, and the ladder is simple in structure and convenient and safe to use.
The invention discloses a stable ladder for climbing trees and belongs to equipment for climbing trees. The stable ladder comprises standing columns, wherein a crossbeam is arranged at the upper ends of the standing columns, fixing seats are respectively disposed on the upper surface and the lower surface of the crossbeam, a base is disposed on one side of the lower end of each standing column, a support rack is rotatably disposed on each base, and each base is connected with the corresponding support rack through a pin; one side, below the fixing seat, of the crossbeam is provided with a clamp ring, and the two lateral sides of the clamp ring respectively attach to the inner lateral sides of the two fixing seats; the clamp ring is connected with the fixing seats through rotary shafts; an antiskid pad is adhered to the inner lateral side of the clamp ring; springs are disposed on the outer lateral side of the clamp ring, and the other ends of the springs are fixed on the lateral side of the crossbeam. The stable ladder for climbing trees has the advantages that slipping between the upper end of the ladder and a trunk when a user uses the ladder to climb a tree can be avoided, inclination of the upper end of the ladder and inclination between the lower end of the ladder and the ground are avoided, and the ladder is simple in structure and convenient and safe to use.