Automatic undertow type dustproof belt

• Main Author: QIU RUNSHENG
• Format: Patent
• Language: Chinese; English
• Published: 30.04.2008
• Subjects: CLEANING; CLEANING IN GENERAL; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PREVENTION OF FOULING IN GENERAL; TRANSPORTING

An automatic back winding type dust preventing belt comprises a support stand, a winding cylinder, a turbination spring, a rolling bearing, plastic covered nylon belts and the like. The device is cooperated with a protecting cover casing of a mechanical appliance, the plastic covered nylon belts are firmly contacted with the inner surface of the protecting cover casing which is adhered with sealed fiber strips, when the moving part of the mechanical appliance moves, one end of the plastic covered nylon belts which are arranged on the two ends of the moving part is stretched, and the other end is back winded automatically, thereby the bare portions of the protecting cover casing of the mechanical appliance are capable of being sealed by the plastic covered nylon belts. The device has the function of back winding automatically with small bulk, light weight, compact structure, no noise and small additional traction power, further the extending and extracting amount is capable of reaching 500-1000 mm. The utility