Wellhead sealing device of dewatering well

Wellhead sealing device of dewatering well

The invention discloses a dewatering well mouth sealing device which comprises a supporting casing pipe, a sealing ring, a sealing ring and a sealing ring. A containing groove allowing an upper port of a dewatering well to be embedded is formed in the end face of the lower end of the supporting casi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG WEI, GAO YU, CHEN HUAWEI, HAN GUANGSHUO, CHEN TUOYU, CHEN XIANG, CHEN GUANGDONG, WEI XIAOGUANG, LI KUI, LIANG SHAOYAN, SONG WEIWEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:The invention discloses a dewatering well mouth sealing device which comprises a supporting casing pipe, a sealing ring, a sealing ring and a sealing ring. A containing groove allowing an upper port of a dewatering well to be embedded is formed in the end face of the lower end of the supporting casing pipe, and the containing groove is arranged in a circle in the circumferential direction of the supporting casing pipe; the winding shaft is used for winding an electric wire of a draining pump in the dewatering well and is mounted in the supporting sleeve; the ball cover assembly comprises a fixed cover plate and a movable cover plate, the fixed cover plate and the movable cover plate are respectively in an arc shape and are coaxially arranged with the winding shaft, one side of the fixed cover plate is fixedly arranged on one side of the upper end opening of the supporting sleeve, and a fan-shaped notch is formed between the other side of the fixed cover plate and the other side of the upper end opening of the