US 12,479,702 B2
Automatic conveyor and automatic cleaning device for the handrail belt thereof
Jiangxing Huang, Hangzhou (CN); Zhengguang Zhou, Hangzhou (CN); Mingli Zhou, Hangzhou (CN); and Minglei Feng, Hangzhou (CN)
Assigned to OTIS ELEVATOR COMPANY, Farmington, CT (US)
Filed by Otis Elevator Company, Farmington, CT (US)
Filed on Aug. 4, 2023, as Appl. No. 18/365,444.
Claims priority of application No. 202211404390.X (CN), filed on Nov. 10, 2022.
Prior Publication US 2024/0158207 A1, May 16, 2024
Int. Cl. B66B 31/02 (2006.01); A61L 2/10 (2006.01); B08B 1/14 (2024.01); B08B 1/20 (2024.01); B08B 3/04 (2006.01); B08B 13/00 (2006.01)
CPC B66B 31/02 (2013.01) [A61L 2/10 (2013.01); B08B 1/143 (2024.01); B08B 1/20 (2024.01); B08B 3/041 (2013.01); B08B 13/00 (2013.01); A61L 2202/11 (2013.01); A61L 2202/14 (2013.01); A61L 2202/17 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An automatic cleaning device for a handrail belt of an automatic conveying device, the automatic cleaning device comprising:
a base;
a first cleaning unit and a second cleaning unit mounted on the base, wherein the first cleaning unit and the second cleaning unit are arranged in a front and back way in a moving direction of the handrail belt;
a cleaning liquid conveying device, for conveying cleaning liquid to the first cleaning unit or the second cleaning unit; and
a controller configured to control the cleaning liquid conveying device to deliver the cleaning liquid to only one of the first cleaning unit and the second cleaning unit that first comes into contact with the handrail belt based on a running direction of the handrail belt during a cleaning operation, such that in a first handrail belt direction the first cleaning unit receives the cleaning liquid and the second cleaning unit does not receive the cleaning liquid and in a second handrail belt direction opposite to the first handrail belt direction the second cleaning unit receives the cleaning liquid and the first cleaning unit does not receive the cleaning liquid.