Suspended ceiling straight plug expansion joint

• Main Author: WU YIGUO
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2023
• 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

A suspended ceiling straight plug expansion joint comprises a counter-pull joint and an expansion iron sleeve, the counter-pull joint comprises a connecting section and a counter-pull section, the bottom of the connecting section is connected with the top of the counter-pull section, the diameter of the connecting section is larger than that of the counter-pull section, the lower portion of the counter-pull section is cylindrical, and the upper portion of the counter-pull section is cylindrical. The diameter of the upper portion of the counter-pulling section is gradually increased from bottom to top, the periphery of the counter-pulling section is sleeved with the expansion iron sleeve, the height of the expansion iron sleeve is smaller than that of the counter-pulling section, a plurality of upper notches are formed in the periphery of the upper portion of the expansion iron sleeve, and the upper portion of the expansion iron sleeve is divided into a plurality of expansion pieces through the upper notches.