High-speed reciprocating pump drain valve spring

The utility model provides a drain valve spring of a high-speed reciprocating pump. The drain valve spring comprises a main body structure and supporting rings at the two ends of the main body structure. The main body structure comprises a working ring and transition rings at the two ends of the wor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	CHEN ERHUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides a drain valve spring of a high-speed reciprocating pump. The drain valve spring comprises a main body structure and supporting rings at the two ends of the main body structure. The main body structure comprises a working ring and transition rings at the two ends of the working ring, the inner diameter of the working ring is larger than the outer diameter of the transition rings, the inner diameter of the transition rings is larger than the outer diameter of the supporting ring, and after the spring is pressed, even if the supporting ring retracts into the main body structure, the transition rings do not make contact with the main body structure. The structure of the working ring of the spring is improved, the outer diameter of the transition ring is smaller than the inner diameter of the working ring, it is guaranteed that when the spring is compressed to the limiting position, steel wires do not interfere with one another, the steel wires do not make contact with one another when t