REVERSING DEVICE OF PERCUSSION ACTION FOR DRIVING WELLS IN SOIL Russian patent published in 2024 - IPC E02F5/18 

FIELD: mining.

SUBSTANCE: invention relates to percussion devices for driving wells in soil. Reversible percussion device comprises a housing, a striker, a spring-loaded air distribution pipe with a longitudinal channel and a radial opening. Between a disc rigidly attached to said branch pipe and equipped with a drainage channel, and a cup made in the rear part of the housing, shutoff chamber is formed connected by said radial opening with longitudinal channel of spring-loaded air-distributing branch pipe at forward stroke of reversing device. At the same time on the inner wall of the cup there is a drain groove and a stop for the disc on the reverse stroke of the reversing device.

EFFECT: higher efficiency of the device, reliability and durability.

1 cl, 1 dwg