Manual release pump

The invention provides a manual release pump which can reduce the operation complexity. The manual release pump comprises a pump body, an oil inlet and an oil outlet are formed in the pump body, a pump cavity and a valve cavity are formed in the pump body, a pump rod and a valve rod which can slide are arranged in the pump cavity and the valve cavity respectively, the pump cavity is communicated with the oil inlet and the oil outlet through one-way valves, and the valve rod is communicated with the oil inlet and the oil outlet through one-way valves. The tail end of the valve rod is supported by the inner wall of the pump body through an elastic component, so that the valve rod can slide under the action of hydraulic pressure from the oil inlet and pressure of the elastic component, and the oil inlet and the oil outlet are communicated or disconnected through the valve cavity. 本申请提供了一种手动释放泵，能够降低操作复杂度。该手动释放泵包括：泵体，所述泵体上设置有进油口和出油口，所述泵体内设置有泵腔和阀腔，在所述泵腔和所述阀腔中分别设置有可滑动运动的泵杆和阀杆，所述泵腔通过单向阀分别与所述进油口和所述出油口连通，所述阀杆的末端通过弹性部件由