A self-unloading one-way valve cylinder head valve plate assembly

Abstract

The invention belongs to the technical field of vent valve banks of air compressors and particularly relates to a self-unloading one-way valve type cylinder head and valve plate assembly used on a cylinder port of the air compressor. The self-unloading one-way valve type cylinder head and valve plate assembly comprises a valve plate, wherein an air inlet and a vent hole are formed in the middle part of the valve plate, an inlet valve sheet assembly which is used for controlling unidirectional communication of the air inlet is arranged on the lower side of the valve plate; the vent hole is in threaded connection with a one-way valve; an unloading hole is formed in the valve plate; and an unloading valve is fixed on the unloading hole and is in threaded connection with the unloading hole. According to the invention, the one-way valve is in threaded connection with the vent hole on the valve plate, an integral and straight-through design of the vent valve bank and the one-way valve is adopted, and meanwhile, the one-way valve is directly and tightly screwed on the vent hole of the valve plate, so that simple, safe and reliable cooperation is achieved; and when an aerodynamic thrust on the lower side of the valve plate is less than a spring force of the one-way valve, the one-way valve is closed, and both the power consumption and the cost of the air compressor applying the self-unloading one-way valve type cylinder head and valve plate assembly can be reduced.

Description

technical field [0001] The invention belongs to the technical field of exhaust valve groups of air compressors, in particular to a self-unloading check valve type cylinder head valve plate assembly used on the cylinder port of an air compressor. Background technique [0002] The exhaust valve group in the prior art is generally composed of valve plates, valve plates, stoppers and other parts. Its working principle is to change the volume through the reciprocating movement of the piston, so that the air valve is compressed to complete the suction closure, In the process of opening the exhaust, the main unit of the air compressor must connect a one-way valve in series with the air storage tank, otherwise, after the machine stops running, the gas in the air storage tank will flow backwards and be discharged from the main unit of the air compressor. The purpose of sealing cannot be achieved; another use of the check valve is to discharge the compressed air in the high-pressure p...

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Problems solved by technology

[0002] The exhaust valve group in the prior art is generally composed of valve plates, valve plates, stoppers and other parts. Its working principle is to change the volume through the reciprocating movement of the piston, so that the air valve is compressed to complete the suction closure, In the process of opening the exhaust, the main unit of the air compressor must connect a one-way valve in series with the air storage tank, otherwise, after the machine stops running, the gas in the air storage tank will flow backwards and be discharged from the main unit of the air compressor. The purpose of sealing cannot be achieved; another use of the check valve is to discharge the compressed air in the high-pressure pipe through the air discharge hole of the check valve, so that the air compressor can be started without load when it is restarted. The resistance increases and the load increases, so the power consumption of the motor increases, wasting energy

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