Novel manhole cover capable of automatically relieving pressure

Novel manhole cover capable of automatically relieving pressure

The utility model discloses a novel manhole cover capable of automatically relieving pressure, which comprises a manhole cover lower ring, a manhole cover control pressure lever and a manhole cover upper cover, the manhole cover control pressure lever is arranged right above the manhole cover lower...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: QU GUANGLING, LI MINGHUA, ZHANG ZHONGKAI, WANG BENLONG, WANG MINGDONG, WANG CUIZHU, LYU HAO, LIU QIANGYUAN, WANG SHANKAI, ZHANG WEI, YANG RUIGAO, CHA BYUNG-TAE
Format: Patent
Sprache:chi ; eng
Schlagworte:
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
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Beschreibung
Zusammenfassung:The utility model discloses a novel manhole cover capable of automatically relieving pressure, which comprises a manhole cover lower ring, a manhole cover control pressure lever and a manhole cover upper cover, the manhole cover control pressure lever is arranged right above the manhole cover lower ring, a locking assembly is arranged between the manhole cover lower ring and the manhole cover control pressure lever, and the manhole cover upper cover is arranged on the manhole cover lower ring. The manhole cover control pressing rod is movably connected with the upper cover of the manhole cover through the locking assembly, the handle is unscrewed to rotate the screw rod downwards, the upper cover of the manhole cover can be opened by lifting the manhole cover control pressing rod, and a fire fighting truck tank body can be conveniently overhauled. When the pressure in the fire fighting truck tank body is too high, the upper cover of the manhole cover is upwards jacked up, the upper cover of the manhole cover