Building waterproof roll tensile sample gauge length and center line marking device

• Main Authors: TIAN KUN, LU QUNGOU, TAO RUIPENG, TIAN LINGWEI, WANG YUELAN, CHEN CHANG, KONG YUN
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2021
• Subjects: HAND TOOLS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MANIPULATORS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PERFORMING OPERATIONS; PHYSICS; PORTABLE POWER-DRIVEN TOOLS; STORAGE MEANS FOR WORKSHOPS; TESTING; TRANSPORTING; WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK

The utility model discloses a building waterproof roll tensile sample gauge length and center line marking device which comprises a bottom plate, a pair of positioning pins and a pair of positioning pins. The transverse front side of the marking-off plate sinks towards the middle to form marking-off grooves, the marking-off grooves are in bilateral symmetry, the front side of the marking-off plate sinks backwards to form two semicircular notches to form positioning grooves, and the positioning grooves correspond to the positioning pins one to one in position; the transverse rear side of the marking-off plate is sunken outwards to form an L-shaped notch, a baffle is formed in the area in front of the notch, a tensile sample is placed on the bottom plate and attached to the interior of the notch, and the outer side face of the tensile sample abuts against the baffle in front of the notch; the depth of the notch is smaller than the thickness of the tensile sample. The gauge length marking device has the advantag