Pre-embedded bolt positioner for prefabricated staircase

• Main Authors: SON SEUNG-WOOK, MAO JIE, JI TAO, MENG XIANGXI, LIU YUE
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2023
• Subjects: PERFORMING OPERATIONS; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE

The utility model relates to the technical field of bolt positioners, in particular to a prefabricated stair embedded bolt positioner which comprises a positioning plate, a height limiting assembly is arranged on the front side of the top end of the positioning plate, adjusting grooves are formed in the rear side of the left end and the rear side of the right end of the positioning plate, and adjusting plates are arranged in the two adjusting grooves in a sliding mode. Threaded holes are formed in the side ends of the two adjusting plates, threaded rods are in threaded connection with the interiors of the threaded holes, the threaded rods are rotationally connected with the positioning plate, a groove is formed in the top end of the positioning plate, first bevel gears are fixedly connected to the ends, extending into the groove, of the two threaded rods, and a fixing plate used for sealing the groove is arranged at the top end of the positioning plate. A rotating rod is rotationally connected to the fixing p