Hydraulic pressure test simulator in chamber

The invention discloses a high-precision hydraulic pressure test simulator in a chamber, which is suitable for simulation test for the hydraulic pressure in various chambers, especially for the hydraulic pressure in a combustion chamber of an engine. The simulator is designed in a sealed manner by using the design principle of back pressure and comprises a strengthening rod, an upper end plug 1, a thin-wall circular barrel, a lower end plug with a pressure connector, and an O-shaped sealing ring. The invention has the functions of pressurization and automatic exhaust, can really stimulate the actual working state of the thin-wall circular barrel, is convenient for installation and maintenance and can perform comprehensive evaluation to the performance of the thin-wall circular barrel.