FIELD: construction industry.
SUBSTANCE: invention refers to heat insulation and namely to fastening devices and can be used for fixing heat-insulating materials on concrete surface and brick masonry. Expansion drive dowel consists of a nail with a head, an expansion sleeve, and a dish element. Head is equipped with a core. Dish element includes a clamp plate and a hollow guide part provided with a metal washer. Pin is made from polymeric composite material of one-directional reinforcement with an annular reinforcement winding forming the shaped nail surface. The core contacts polymeric composite material of one-directional reinforcement in non-detachable way. Nail head is located in hollow guide part of dish element with a gap.
EFFECT: achieving reliability of the attachment, manufacturability, and simplifying the dowel erection.
5 cl, 2 dwg
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