Leakage-free dust blowing device

Abstract

A kind of leakage-free dust blowing device, it is related to the field of pneumatic cleaning tool, including handle, switch assembly, blowing assembly, handle is equipped with air inlet channel, elastic hose is installed in air inlet channel, the both ends of elastic hose are connected with air inlet connector and blowing assembly respectively, switch assembly is used to extrude or loosen elastic hose to control the disconnection or communication of air inlet channel.Switch assembly includes switch handle, elastic valve plate, elastic reset assembly etc.;Switch handle is linked with one end of elastic valve plate.;Elastic valve plate is linearly slidably arranged in handle, and elastic valve plate is provided with adjusting groove for installing limit pin II and through groove passing through elastic hose.;The other end of elastic valve plate is also connected with extrusion boss, the other end of extrusion boss is connected with elastic reset assembly.The invention cancels the sliding friction pair between traditional sealing ring and valve core, eliminates the physical possibility of wear and tear leakage, has long service life, with the characteristics of energy saving, low noise, stepless adjustable flow, convenient adjustment, simple and reliable structure.

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