Quick-release valve for charging liquid

Abstract

The invention discloses a quick-unloading valve, in particular to a large-caliber liquid filling quick-unloading valve from a large tonnage oil cylinder on a plastic or rubber plastic foam forming machine, for shoe soles, foaming rubber floor, heat insulation sheets, suitcase lining, diving suit material and life jacket material, which comprises a valve body; wherein, a valve cap is arranged on an upper end of the valve body and a center bore and a pressure relief hole are disposed on the valve cap. A valve core is positioned in the valve body and a valve rod is arranged on the upper end of the valve core; a lower end of a valve rod is connected with the valve core and the upper end passes through the center hole of the valve cap and then extends out on the valve cap. An oil outlet is disposed on a side wall in the central section of the valve body, an oil inlet and a high pressure oil inlet are positioned on the side wall of a lower part of the valve body and the diameter of the oil inlet is shorter than the diameters of the oil outlet and the high pressure oil inlet. The quick-unloading valve is characterized in that a spring is sleeved on an extending section of the valve rod, a locknut is arranged on an outer end of the valve rod and an upper end and a lower end of the spring are propped against the locknut and the valve cap respectively. By adopting the large-caliber liquid filling quick-unloading valve for the oil cylinder of the foaming machine, the energy can be saved and the production cost can be reduced.

Description

technical field [0001] The present invention relates to a valve. Specifically, it is a large-diameter liquid-filled quick-release valve for large-tonnage oil cylinders on foam molding machines for plastic or rubber-plastic materials such as shoe soles, styrofoam floors, insulation panels, luggage linings, diving clothing materials, and lifesaving clothing materials. Background technique [0002] It is well known in the plastic or rubber and plastic product production industry that the foam molding machines used to produce plastic or rubber and plastic products such as shoe soles, styrofoam flooring, insulation panels, luggage linings, diving clothing materials and lifesaving clothing materials are equipped with equipment for The valve for filling and discharging oil in the oil cylinder. Wherein the valve comprises a valve body, which is in the shape of a cylinder, with a valve cover on its upper end, a central hole on the valve cover, a valve core inside, and a valve stem o...

AI Technical Summary

Problems solved by technology

However, the use of high-power oil pumps requires a large amount of power, which not only wastes energy, but also increases production costs.

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