Pressure adjustment device with self-locking and single-spring structure

The utility model provides a pressure adjustment device with a self-locking and single-spring structure, and overcomes the shortcomings of complicated assembly and manual adjustment of the traditional pressure adjustment device. The device provided by the utility model mainly consists of a valve body, a shaft, a slider, a pressure spring, a sealing gasket, a sealing ring I, a sealing ring II, a fast interface enclosure, a fast interface, a washer, a sealing ring III, an exit and an entrance, wherein a sealing ring or sealing gasket is arranged at each joint of the components; and all components are connected by self-locking fasteners. The device adjusts pressure by use of one spring to achieve the expected aim, has a simple structure, can prevent failure after long-time work, and realize an effect of reducing the production cost; moreover, apart from the simple structure, the materials are cheap, the sealing ring and sealing gasket have efficient sealing property, and the material cost can be remarkably reduc