Vacuum measuring device with compensation function

• Main Authors: WANG ZHENGWANG, QIANG XIAOYONG
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

The utility model discloses a vacuum measuring device with a compensation function, which relates to the field of vacuum measurement and comprises a vacuum measuring device body, an air inlet pipe is arranged at the lower end of the vacuum measuring device body, a placing groove is arranged on the outer wall of the air inlet pipe, an air bag is sleeved in the placing groove, and a sleeve is sleeved on the outer wall of the air inlet pipe close to the vacuum measuring device body. Two opposite pressing grooves are formed in the upper surface of each sleeve, an inflation assembly is arranged in each pressing groove, two opposite threaded grooves are formed in the side, away from the vacuum measuring device body, of each sleeve, and the air bags are filled with air through the arranged inflation assemblies so that the air bags can be expanded to seal the inner wall of a pipe cavity; and then the air in the air bag is released through the arranged air release assembly, so that the air bag is shrunk, the gap betwe