Ammonia pressure gauge

• Main Authors: WANG LIBAO, WANG JINMEI, GUO ZHAOJIAN, HU GUOZHENG, YANG XINJUN
• Format: Patent
• Language: Chinese; English
• Published: 29.08.2023
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

The utility model relates to a pressure gauge for ammonia, which comprises a pressure gauge shell, a pointer movably arranged at the center of the pressure gauge shell, a through hole arranged on the side wall of the pressure gauge shell, a limit rod movably arranged inside the through hole, a support rod fixedly arranged at the tail end of the pressure gauge shell, and an alarm box welded at the tail end of the support rod. The tail end of the limiting rod is inserted into the alarm box, a micro motor is fixedly arranged on the side wall of the alarm box, a rotary disc is fixedly arranged at the tail end of an output shaft of the micro motor, and a connecting rod is movably arranged on the surface of the rotary disc. According to the utility model, through mutual cooperation of the limiting rod and the pointer, when the pointer rotates to a certain angle, the limiting rod is driven to move downwards, and the first metal plate in the pointer reciprocates, so that the second metal plate at the tail end of the