Road cleaning suction nozzle - is rolled on ball trolley with retainer rings and dirt escape holes

摘要

The suction nozzle is used on a vacuum cleaner for clear roads, where it is necessary to be able to move the nozzle freely in any level direction. The nozzle is retained at a certain interval above the road, to prevent it from adhering to the road surface. The suction nozzle (33) runs along on a trolly formed from balls (34) to keep it on the same level at a minimum distance (80) from the road surface (76). The balls are carried in a casing (79) with drit run-off holes (78), and with a retaining and dirt skimming ring (77) to prevent them from falling out. All the components may be individually replaced.