Integral hydraulic lifting type complete well lid

The utility model discloses an integral hydraulic lifting type complete well lid which comprises an anti-explosion emptying valve, a one-way liquid inlet valve, a hollow circular base, hydraulic oil,a sealing ring, a cavity, a crawling ladder, an operation area, a vertical steel ring, a well lid bod...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LIANG YING'OU, DENG YAN, QIN ZIXING, LI SHUWEN, HUANG HUATONG
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The utility model discloses an integral hydraulic lifting type complete well lid which comprises an anti-explosion emptying valve, a one-way liquid inlet valve, a hollow circular base, hydraulic oil,a sealing ring, a cavity, a crawling ladder, an operation area, a vertical steel ring, a well lid body and a stand column. The stand column is welded into the hollow circular base, and the hollow circular base is divided into the cavity and the operation area through the stand column. The stand column is provided with an anti-explosion emptying valve and a one-way liquid inlet valve which penetrate through the stand column, the anti-explosion emptying valve and the one-way liquid inlet valve are in fluid communication with the cavity, and the cavity is filled with hydraulic oil. A vertical steel ring is welded to the well lid body, the vertical steel ring is movably inserted into the cavity, and the cavity and the vertical steel ring are sealed through a sealing ring arranged on the vertical steel ring in a sleevi