| 摘要 |
#CMT# #/CMT# The device has sliding parts (G1, G2) arranged around driving body longitudinal axes at a distance to each other and formed by blades (4, 5) i.e. screw blades. Radial positions of the blades of the parts are shifted against each other. Maximum diameter of the sliding parts is increased from a tip (2) to a head plate (6). Measures of radial shifting of the blades of the sliding parts are selected such that a thread pitch cut by one of the blades in a ground and does not cooperate with another thread pitch produced by the other blade, where the former blade precedes in a driving direction. #CMT#USE : #/CMT# Self-locking anchoring device for use as an impact foundation for installation of a photovoltaic system and supporting steel- and wood structures. #CMT#ADVANTAGE : #/CMT# The measures of radial shifting of the blades are selected such that the thread pitch cut by one of the blades does not cooperate with another thread pitch produced by the other blade, thus ensuring simple mechanical structure, high extraction force and less driving force of the anchoring device. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a side sectional view of a self-locking anchoring device. G1, G2 : Sliding parts 1 : Driving body 2 : Tip 3 : Guide plate 4, 5 : Blades 6 : Head plate. |
