Small pressure boosting and maintaining device

• Main Authors: YANG PEI, LI ZHAOKAI, FU XINGXING
• Format: Patent
• Language: Chinese; English
• Published: 25.03.2022
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The invention relates to a small pressurization and pressure maintaining device, belongs to the technical field of hydraulic systems, and solves the problems that an existing hydraulic system is long in pressure building time and low in pressure transformation response speed, and the pressure of a low-pressure oil way is increased after long-time working. The small pressurization and pressure maintaining device comprises a first piston structure and a second piston structure. The first piston structure is provided with a first piston, the first piston is a pressurizing piston, the thin part communicates with the high-pressure oil way, and the thick part communicates with the low-pressure oil way; one end of the second piston structure communicates with the low-pressure oil way, and the other end communicates with the pressure relief oil way; the second piston structure is provided with a second piston, and the second piston is jointly driven by an elastic piece and hydraulic oil of the low-pressure oil way; t