The application provides a docking mechanism small cavity
leak rate test tool and test method related to the field of
leak rate test, which comprises an upper head
assembly and a
leak detection pipeline
assembly, the
leak detection pipeline
assembly is connected to the upper head assembly, the upper head assembly is sealed and locked with a docking mechanism product to be tested to form a small cavity space, the
leak detection pipeline assembly inflates the small cavity space of the docking mechanism product to be tested, and the
internal pressure of the small cavity is tested in real time. Through the design of the upper head assembly, the setting of the pre-tightening force of the docking lock mold
simulation part hook, the functional performance of the passive part of the docking mechanism is fully simulated, the cooperation of the active and passive parts of the docking mechanism during the small cavity
leak rate test is avoided, the complexity of the test tool
system is effectively simplified, the operation process is simplified, and the operation difficulty is reduced. Through the series connection of the
gas pressure sensor in the leak detection pipeline, the product pipeline pressure is monitored in real time, the difficulty of the leak rate test is reduced in the mechanical and electrical combination mode, and the reliability of the leak rate test is ensured by the reverse installation of the stop valve to ensure the
air tightness after being closed.