Threaded sleeve, connecting screw and screw-sleeve combination

• Main Authors: DA ROCHA BRUNO, BECKER SVEN, SANTOS NELSON
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

A plug-in threaded sleeve has a shank extending substantially cylindrically along a sleeve axis for insertion into a bore; a disk portion terminating the shank portion at an axial end and extending outwardly at a right angle to the sleeve axis; a through hole extending through the disc portion and the handle portion along the sleeve axis for receiving a bolt; a member anti-twist device formed on an outer surface of the shank or on a bottom side of the disk portion facing the shank; and the screw anti-torsion device is formed on the surface, opposite to the handle part, of the disc part. The coupling screw according to the invention has a screw head, a shank portion and a threaded portion, the shank portion having an outer diameter over its main length smaller than the core diameter of the threaded portion, and the screw head having an underhead anti-twist device on its underside. 一种插入式螺纹套筒具有：柄部，其沿套筒轴线大体上圆柱形延伸、用于插入孔中；圆盘部，其在轴向端部处使该柄部终止并且与该套筒轴线成直角向外延伸；通孔，其沿该套筒轴线延伸穿过该圆盘部和该柄部、用于容纳螺栓；构件防扭转装置，其形成在该柄部的外表面上，或形成在该圆盘部的朝