Spring dynamometer with peak value shows function

The utility model discloses a spring dynamometer with peak value shows function, including the shell, be fixed with the link at the top of shell, the shell openly is the plane, is equipped with in themiddle of the shell is positive along the bar opening of vertical orientation setting, is equipped with power value scale in bar open -ended left side and/or right side, installs in the shell along the spring of bar opening setting, and at the fixed strong worth pointer of connecting rod and spring bottom junction, sliding connection has peak value indicating mechanism in the bar opening, drivesthe downstream together of peak value indicating mechanism with the instruction cap after touching when the downstream of power value pointer, through set up peak value indicating mechanism on the shell is positive, realized locking the atress peak value in the measurement process, especially in the biggest stiction lecture experiment, can lock the biggest stiction value to read the biggest stiction, it is more directly pe