Measuring device for head of coal injection duct

• Main Authors: ZHANG QI, WU YUANZHE, DONG XUEDA, LIU XIAOWEI, ZHANG CHANGJUN
• Format: Patent
• Language: Chinese; English
• Published: 13.12.2022
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The utility model discloses a measuring device for the head of a coal injection duct, which comprises a ruler rod, the left part and the right part of the rear side of the ruler rod are respectively provided with a sliding block in a sliding manner, the sliding blocks are fixed on the ruler rod through fixing structures, the lower sides of the sliding blocks are fixedly provided with limiting rods, and the opposite sides of the two limiting rods are respectively provided with a strip-shaped sliding groove. Telescopic rods are arranged on the inner sides of the strip-shaped sliding grooves in a sliding mode and fixed to the inner sides of the strip-shaped sliding grooves through locking structures. Compared with the prior art, the utility model has the advantages that through the cooperation of the two limiting rods and the telescopic rod, the diameter length of the head part of the coal-injection duct can be effectively marked, and then the diameter of the head part of the coal-injection duct can be convenien