Automatic pressure gauge

Abstract

The invention discloses an automatic pressure gauge, which includes a base, a display instrument, a socket for a measured object, an instrument transmission socket, a load-bearing device and a pressure adjustment assembly. The display instrument is connected to the instrument transmission socket through a wiring harness. The adjustment assembly includes the main adjustment valve, the first adjustment rod, the position adjustment valve, the second adjustment rod, the piston pressure regulating valve and the third adjustment rod. The second adjustment rod passes through the position adjustment valve and is connected to the socket of the measured object and the instrument Transmission socket, the two ends of the first regulating rod are respectively connected to the instrument transmission socket and the piston regulating valve, the two ends of the third pressure regulating rod are respectively connected to the piston pressure regulating valve and the load-bearing device, and the main regulating valve is linked to the first regulating rod middle part. The automatic pressure gauge has a reasonable structure and is convenient to operate and use, and the accuracy in the detection process can be well maintained through adjustment, thereby helping to better ensure the accuracy of the pressure value.

Description

technical field [0001] The invention relates to the technical field of pressure testing, in particular to an automatic pressure gauge. Background technique [0002] The pressure gauge is a standard pressure measurement instrument with high accuracy, high reproducibility and high reliability. The working mechanism of the pressure gauge is based on the definition of pressure concept, and based on Pascal's law and the principle of hydrostatic balance. The pressure generated by loading the special weight of known mass on the piston of known effective area to give an accurate pressure value. Piston pressure gauges are often used as national benchmarks and working benchmarks or pressure measurement standards in the world. Therefore, Piston pressure gauges have a wide range of applications in their fields. [0003] Existing piston pressure gauges usually include a base, a display instrument, a socket for the measured object, an instrument transmission socket, and a load-bearing ...

AI Technical Summary

Problems solved by technology

[0003] Existing piston pressure gauges usually include a base, a display instrument, a test object socket, an instrument transmission socket, and a load-bearing device. The instrument transmission socket is connected to the display instrument, and the measured object socket and the load-bearing device are connected to the instrument transmission The pressure value can be measured by connecting the measured object to the measured object socket. However, after a long period of use of the pressure gauge, the measured object socket, the instrument transmission socket and the load-bearing device on the base After the position is slightly moved, it is easy to affect the detection accuracy, and often affects the accuracy of the final measured pressure value

Images