| 摘要 |
PURPOSE:To raise the efficiency of soil dishcarging operation by suction by a method in which a collecting chamber having a discharge port on its bottom and a filter chamber having a dust-discharging gate on its bottom are mounted on a truck in such a way as to open the parts corresponding to the soil discharge port and the gate. CONSTITUTION:The connecting port 11 of a vacuum hose 12 is provided at the upper part of the rear wall of a collecting chamber 5, and a baffle plate 14 whose side corresponding to the inside opening of the port 11 is bonded with a shock absorber 15 of rubber plate, etc., is provided between the inside opening of the port 11 and the top opening 8a of the pathway 8. Also, a soil discharge port 16 to be opened by horizontally operating a door 17 is provided at the bottom of the chamber 5. On the other hand, a gate 20 to be opened or closed manually is provided at the bottom of a filter chamber 6 provided with a large number bottomed cylindrical filter elements 21. They are mounted on a trailer type truck body 1, and the lower parts of the parts corresponding to the soil discharge port 16 and the gate 29 in the body 1 are opened. Soil, sand and air are separated from each other in the chamber 5 and therefore, the continuity of the operation can be retained. |
