PLACER MAST OF TRUCK-MOUNTED CONCRETE PUMP Russian patent published in 2013 - IPC E04G21/04 

FIELD: construction.

SUBSTANCE: placer mast of a truck-mounted concrete pump is designed to supply concrete to the place of its laying when performing construction works carried out preferably at height. The mast comprises folding sections that are hingedly coupled and joined to each other by means of hydraulic cylinders. The root section of the mast is hingedly installed on the stand of the rotary device. The last section of the placer mast and the end of the concrete line are arranged as telescopic. The telescopic section of the mast is mounted on the main mast as capable of rotation by an angle of 360° and with the possibility of lifting and lowering in the vertical plane by means of a hydraulic cylinder. The extreme link of the telescopic section of the concrete line of a smaller diameter is connected with the main concrete line as capable of rotation. Extreme links of telescopic sections of the mast and the concrete line are fixed to each other, besides, the section of the smaller diameter is fixed to the section of the larger diameter. Extension of the links of the telescopic section of the placer with extended links of the concrete line is carried out with the help of the hydraulic cylinder installed in the cavity of the specified mast section.

EFFECT: expanded working zone and control of concrete supply to a place of laying without displacement of a truck-mounted concrete pump.

3 cl, 5 dwg