PNEUMATIC VIBRATOR (ITS VARIANTS) Russian patent published in 1995 - IPC

FIELD: building, mining industries. SUBSTANCE: shock worker is placed in the housing. Two flexible diaphragms are attached to the housing and to the shock worker with the formation of two working chambers connected by the shock worker channels. The valve interacts with the shock worker channel and is placed with a gap in the shock worker cavity being in communication with its channel. The cavity is made step-like. The valve is set up opposite to the outlet hole made in the face end of the housing for interacting with it during the axial displacement of the shock worker. One diaphragm is the common wall between the working chambers. The valve is made in the form of a stepped disk. The second valve mounted opposite to the second outlet hole can be placed in the step-like cavity of the shock worker. The hole is made on the face end of the housing and is disposed opposite to the first one for interacting with it during the axial displacement of the shock worker. Each diaphragm is the common wall for the two adjacent working chambers. EFFECT: simpler design. 4 cl, 3 dwg