PORTABLE HYDRAULIC TESTER FOR HOLES OF PNEUMATIC DRILL

The utility model relates to a portable hydraulic tester for pneumatic drill holes, which is composed of seal pipes, a connection pipe, a rubber pipe, a capsule, a water inlet pipe, a hydraulic pipe, a joint pump pipe, a fluid meter, etc. The double-pipe double-valve hydraulic pipe and two identical seal pipes are adopted to form two seal cavities, and a connection pipe forms a hydraulic cavity. The hydraulic cavity is provided with the rubber pipe and a plurality of water outlet holes which cause the water to flow into the hydraulic segments of the drill holes. The seal cavity is surrounded by the capsule, and the upper side of the seal cavity is provided with a plurality of water outlet holes which cause the water to press the capsule under the action of the water pressure to seal the drill holes. The distances of the hydraulic segments can be changed, and the water consumption can be directly read by a flowmeter. Moreover, the water permeability of the rock mass is known via the unit water consumption to reveal the internal structure of the rock mass.