EP 2966302 A1 20160113 - CRANKSHAFT-TYPE VACUUM AIR PUMP AND GLASS-WIPING APPARATUS THEREOF
Title (en)
CRANKSHAFT-TYPE VACUUM AIR PUMP AND GLASS-WIPING APPARATUS THEREOF
Title (de)
KURBELWELLENSVAKUUMLUFTPUMPE UND GLASWISCHVORRICHTUNG DAVON
Title (fr)
POMPE À AIR ASPIRANTE À VILEBREQUIN, ET APPAREIL ESSUIE-VITRE CORRESPONDANT
Publication
Application
Priority
- CN 201310071461 A 20130306
- CN 2014072976 W 20140306
Abstract (en)
A crankshaft-type vacuum air pump comprising a drive motor (1), an air pump main body (2), and piston air pump components (3) arranged on the air pump main body (2). A crankshaft unit is arranged within the air pump main body (2). The top of the crankshaft unit is connected to the air pump main body (2) via an upper eccentric wheel (4), while the end is connected to the drive motor (1) via a lower eccentric wheel (5). The drive motor (1) outputs power to rotate the crankshaft unit. The crankshaft unit is connected to the piston air pump components (3) and drives the piston air pump components into motion, thus completing air intake and air discharge of the piston air pump components (3). The air pump is structurally simple and compact, the crankshaft per se is centrosymmetric, and one or more crankshaft units are made to serve as a rotary shaft, where the overall center of gravity during rotation is always located at the center of rotation and no vibration is caused by a centrifugal force. The rotary shaft is subjected to the force of piston rods on two sides that are always symmetric relative to the center of rotation, thus the rotary shaft is subjected to a radial force that is basically zero, the problem of vibration caused by unbalanced stress during rotation is greatly reduced, and a stable working state is allowed.
IPC 8 full level
F04B 37/02 (2006.01); A47L 1/02 (2006.01); F16H 21/16 (2006.01)
CPC (source: EP US)
A47L 1/02 (2013.01 - US); F04B 35/01 (2013.01 - US); F04B 37/02 (2013.01 - EP US); F04B 37/14 (2013.01 - EP US); F04B 39/0094 (2013.01 - EP US)
Citation (search report)
See references of WO 2014135099A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2966302 A1 20160113; CN 104033356 A 20140910; CN 104033356 B 20170912; US 2016084243 A1 20160324; WO 2014135099 A1 20140912
DOCDB simple family (application)
EP 14760716 A 20140306; CN 201310071461 A 20130306; CN 2014072976 W 20140306; US 201414773107 A 20140306