High-strength composite steel casting tight in connection

• Main Author: ZHAN CHUNGUI
• Format: Patent
• Language: Chinese; English
• Published: 20.06.2023
• 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

The high-strength composite steel casting comprises a first steel casting body, a second steel casting body and a connecting piece, a U-shaped channel is axially formed in the connecting piece, and the opposite ends of the first steel casting body and the second steel casting body are both inserted into the U-shaped channel. A plurality of positioning grooves are formed in the top faces of the sections, located in the U-shaped channel, of the first steel casting and the second steel casting, a plurality of pull rods are arranged above the connecting piece, rectangular openings are formed in the positions, right opposite to the positioning grooves, of the top face of the connecting piece, and positioning blocks are installed at the positions, right opposite to the rectangular openings, of the bottom faces of the pull rods. The lower ends of the positioning blocks penetrate through the rectangular openings to be inserted into the corresponding positioning grooves. The steel casting connecting device is simple i