A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-layer manhole door
The invention discloses a double-layer manhole door for dust collectors, comprising a door frame and a door body in threaded fit with the door frame. The door frame is disposed on the sidewall of a dust collector. The outer surface of the door frame is provided with at least one circular seal groove. The door body comprises an outer door circular in shape, an inner door in a tubular shape, a hand wheel and a fixing unit; the outer door comprises at least one seal pad circular in shape and in mutual fit with the seal grooves; the inner door is fixed to the inner surface of the outer door and coaxial with the outer door; the outer surface of the inner door is provided with a thread fitting the door frame; the hand wheel is fixed to the outer surface of the outer door and coaxial with the outer door; one end of the fixing unit is fixed to the sidewall of the dust collector, and the other end thereof is rotationally connected with the hand wheel; the fixing unit is used for providing an inward pressure for the outer door when the door body is closed and providing an outward pull for the outer door when the door body is opened.
Double-layer manhole door
The invention discloses a double-layer manhole door for dust collectors, comprising a door frame and a door body in threaded fit with the door frame. The door frame is disposed on the sidewall of a dust collector. The outer surface of the door frame is provided with at least one circular seal groove. The door body comprises an outer door circular in shape, an inner door in a tubular shape, a hand wheel and a fixing unit; the outer door comprises at least one seal pad circular in shape and in mutual fit with the seal grooves; the inner door is fixed to the inner surface of the outer door and coaxial with the outer door; the outer surface of the inner door is provided with a thread fitting the door frame; the hand wheel is fixed to the outer surface of the outer door and coaxial with the outer door; one end of the fixing unit is fixed to the sidewall of the dust collector, and the other end thereof is rotationally connected with the hand wheel; the fixing unit is used for providing an inward pressure for the outer door when the door body is closed and providing an outward pull for the outer door when the door body is opened.
Double-layer manhole door
LUO NING (author) / HUANG XIANG (author) / YU LINCHONG (author)
2015-11-18
Patent
Electronic Resource
English
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
/
B03C
Magnetische oder elektrostatische Trennung fester Stoffe von festen Stoffen oder flüssigen oder gasförmigen Medien
,
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
Manhole door management method and manhole door device of coal conveyor
| European Patent Office | 2023
| European Patent Office | 2021