초록 ▼

A grinding machine with a dust collector includes a driving portion, a transmitting portion, a dust-collecting tube, a fender, an air intake connector and a grinding wheel. The dust produced by the rotation of the grinding wheel is sucked by the dust-collecting tube having an inner tube. The inner t

A grinding machine with a dust collector includes a driving portion, a transmitting portion, a dust-collecting tube, a fender, an air intake connector and a grinding wheel. The dust produced by the rotation of the grinding wheel is sucked by the dust-collecting tube having an inner tube. The inner tube is interconnected with an exhaust vent of the driving portion and the dust-discharging opening. An outlet of the inner tube is parallel to an airflow passage of the dust-discharging opening, such that when an exhaust gas is discharged from the inner tube, a siphon effect is produced at the airflow passage of the dust-collecting tube to suck and collect the dusts produced by the grinding wheel.

대표청구항 ▼

What is claimed is: 1. A grinding machine with a dust collector, comprising: a driving portion, having an air inlet and an exhaust vent, both disposed at an end of said driving portion; a transmitting portion, disposed at an end of said driving portion, and an end of said transmitting portion away

What is claimed is: 1. A grinding machine with a dust collector, comprising: a driving portion, having an air inlet and an exhaust vent, both disposed at an end of said driving portion; a transmitting portion, disposed at an end of said driving portion, and an end of said transmitting portion away from an end of said driving portion having a driving shaft, for driving a grinding wheel to rotate, and said grinding wheel defining a working area enclosed by said grinding wheel, said transmitting portion having a first fender, said first fender having an arc portion, said arc portion having (a) a second fender, and (b) at least one first latch portion extended from a side thereof, said first latch portion having a recession for installing said second fender, said second fender having an extended section, said extended section having at least one second latch portion, said second latch portion having a protrusion extendable into said recession, and said second fender having a through hole disposed on a side thereof for passing a fixing element; and a dust-collecting tube, with an end as a dust-collecting opening interconnected to said working area, and another end as a dust-discharging opening, and forming an airflow passage between said dust-collecting opening and said dust-discharging opening, and said dust-discharging opening being interconnected with said exhaust vent through a penetrating hole, and said penetrating hole being interconnected with an inner tube, and said inner tube having an outlet situated in said airflow passage, and said outlet and said dust-discharging opening being aligned in the same direction. 2. The grinding machine with a dust collector of claim 1, wherein said air inlet has an internal screw thread portion, and said exhaust vent has a receiving portion, for installing said dust-collecting tube. 3. The grinding machine with a dust collector of claim 1, wherein said transmitting portion has a first fixing portion for installing a fixing element, and said transmitting portion has two symmetrical second fixing portions for fixing said dust-collecting tube. 4. A grinding machine with a dust collector, comprising: a driving portion, having an air inlet and an exhaust vent, both disposed at an end of said driving portion; a transmitting portion, disposed at an end of said driving portion, and an end of said transmitting portion away from an end of said driving portion having a driving shaft, for driving a grinding wheel to rotate, and said grinding wheel defining a working area enclosed by said grinding wheel; and a dust-collecting tube, with an end as a dust-collecting opening interconnected to said working area, and another end as a dust-discharging opening, and forming an airflow passage between said dust-collecting opening and said dust-discharging opening, and said dust-discharging opening being interconnected with said exhaust vent through a penetrating hole, and said penetrating hole being interconnected with an inner tube, and said inner tube having an outlet situated in said airflow passage, and said outlet and said dust-discharging opening being aligned in the same direction, said dust-collecting tube being comprised of two symmetric casings and having a first connecting portion, said penetrating hole being penetrated through said first connecting portion, said first connecting portion having a hollow circular shell extended upward from said first connecting portion, and an end of said circular shell has a circular wall and an air intake connector passed therein. 5. The grinding machine with a dust collector of claim 1, wherein said inner tube has a parallel section extended from said inner tube and disposed parallel to an airflow passage of said dust-collecting tube to constitute an L-shape, and said outlet and said dust-discharging opening are aligned in the same direction. 6. A grinding machine with a dust collector, comprising: a driving portion, having an air inlet and an exhaust vent, both disposed at an end of said driving portion; a transmitting portion, disposed at an end of said driving portion, and an end of said transmitting portion away from an end of said driving portion having a driving shaft, for driving a grinding wheel to rotate, and said grinding wheel defining a working area enclosed by said grinding wheel; and a dust-collecting tube, with an end as a dust-collecting opening interconnected to said working area, and another end as a dust-discharging opening, and forming an airflow passage between said dust-collecting opening and said dust-discharging opening, and said dust-discharging opening being interconnected with said exhaust vent through a penetrating hole, and said penetrating hole being interconnected with an inner tube, and said inner tube having an outlet situated in said airflow passage, and said outlet and said dust-discharging opening being aligned in the same direction, said air inlet having an air intake connector, an end of said air intake connector having an external screw thread portion, and another end of said air intake connector has a stopping portion protruded thereon and a first connecting portion for stopping said dust-collecting tube.