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DEVICE FOR ADJUSTING THE HEIGHT OF MANHOLE COVERS WITH THE COVER MOUNTED IN AN ELEVATED POSITION FOR ROADWAYS
DEVICE FOR ADJUSTING THE HEIGHT OF MANHOLE COVERS WITH THE COVER MOUNTED IN AN ELEVATED POSITION FOR ROADWAYS
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机译:用于调整车顶盖高度的装置,该车顶盖安装在道路的高处
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摘要
The invention relates to a device for adjusting the height of the cover of manhole covers on roadway surfaces, for the installation of the normally ring-shaped manhole frames. Said device comprises a divided insertable part (2) with an internal thread (5), into which is screwed a cover (1) with an external thread (4), the internal thread (5) of the insertable part (2) and the external thread (4) of the cover (1) constituting a buttress thread at 45°. The insertable part (2) has a ring groove (14) for a damping device. The cover (1) forms a bevel (6) along its lower circumference. The insertable part (2) has a bevel (7) along its upper circumference. The upper part of the cover (1) is filled with concrete (11). The base frame (3) is surrounded by a protective sheet-metal lining (10). This sheet-metal lining (10) is lined with plastic sheeting on the inside (12) and outside (13).
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