Direct-acting electromagnetic one-way valve

Abstract

The invention discloses a direct-acting electromagnetic one-way valve, and belongs to one-way valves. The direct-acting electromagnetic one-way valve structurally comprises an electromagnet coil, an electromagnet middle sleeve, an electromagnet push rod, a valve body, a transition push rod, a valve element, a valve sleeve and an end plug, wherein a valve sleeve gland is arranged between the end plug and the valve sleeve; the valve element is arranged in the valve sleeve; a reset spring is arranged in a cavity between the valve element and the valve sleeve gland; an upper oil port and a lower oil port are formed in the valve body; a damping hole, a first oil way and a second oil way are formed in the valve element; the damping hole communicates with an inner cavity in the left side of the valve element, an inner cavity of the valve sleeve on the right side of the valve element, the lower oil port and the interior of the electromagnet middle sleeve; the first oil way communicates with the inner cavity of the valve element and is isolated from the second oil way through a steel ball; the second oil way communicates with the upper oil port; the transition push rod is arranged on the right side of the steel ball and connected with the right end of the valve element; and the electromagnet push rod is arranged on the right side of the transition push rod. The direct-acting electromagnetic one-way valve has the beneficial effects that machining is easy, leakage is avoided in the reverse direction, cost is reduced, the response speed of the valve element is high, and pressure lossesare avoided during reverse flowing.

Description

technical field [0001] The invention relates to a one-way valve, in particular to a direct-acting electromagnetic one-way valve. Background technique [0002] At present, the commonly used electromagnetic one-way valve in the hydraulic industry is generally a pilot-operated structure. The pilot valve is a miniature one-way valve operated by a pull-type electromagnet. The hole diameter of the seat is extremely small, the shape and position tolerance requirements are very high, and special equipment is required for processing, so the processing cost is high, the anti-pollution ability is poor, and the valve core has a long response time. When flowing, it is necessary to overcome the return spring force of the valve core first, so there is a certain pressure loss when the oil flows in the reverse direction. Contents of the invention [0003] The technical task of the present invention is to provide a direct-acting electromagnetic one-way valve for the deficiencies in the abo...

AI Technical Summary

Problems solved by technology

[0002] At present, the electromagnetic check valve commonly used in the hydraulic industry is generally a pilot-operated structure. The pilot valve is a miniature check valve operated by a pull-type electromagnet. In this miniature check valve, the valve that is sealed with the cone surface of the cone valve The hole diameter of the seat is extremely small, the shape and position tolerance requirements are very high, and special equipment is required for processing, so the processing cost is high, the anti-pollution ability is poor, and the valve core has a long response time. When flowing, it is necessary to overcome the spring force of the spool return first, so there is a certain pressure loss when the oil flows in the opposite direction.

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