Direct-acting type overflow valve

The embodiment of the utility model discloses a direct-acting type overflow valve which comprises a valve body, a valve element, a damp rod, a damper and a pressure regulating spring. A valve deck is arranged on the top of the valve body, the valve body is provided with a valve cavity, an oil inlet and an oil outlet, and the oil inlet and the oil outlet are communicated with the valve cavity. The valve element is arranged in the valve cavity. The damp rod is arranged in the valve cavity and connected with the valve element. The damper is arranged on the damp rod in a sleeving mode, and one end of the damper abuts against the valve element. The valve deck is connected with one end of the pressure regulating spring, and the damp rod is connected with the other end of the pressure regulating spring. According to the direct-acting type overflow valve, due to the fact that the damper is additionally arranged, the damper is compressed under the action of pressure when the valve element moves upwards, and thus the impact vibration to the valve body by the oil pressure can be reduced. Meanwhile, by means of the damp rod, the volume of a resonant cavity is reduced, the rigidity of oil liquid in negative pressure is increased, the probability of generating resonance can be reduced based on the principle that elements large in rigidity are not like to generate resonance, and thus nose is lowered.