Hybrid-type rock splitting packer using water pressure and rubber inflation pressure

Abstract

The present invention relates to a hybrid-type rock splitting packer using water pressure and rubber inflation pressure, and more specifically, the present invention comprises: a packer unit; a water pressure supply adjusting unit which comprises a water pressure pipe formed in the center inside the packer unit along the length direction, and first spray ports formed in the center of the water pressure pipe along the length direction so as to be spaced apart at predetermined intervals, and which supplies a certain level of water pressure to the first spray ports through the water pressure pipe; a shrinkage pressure supply unit which comprises a shrinkage pressure pipe installed on one side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the shrinkage pressure pipe; an inflation pressure supply unit which comprises an inflation pressure pipe installed on the other side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the inflation pressure pipe; and a crack expansion unit which is provided so as to be connected to the packer unit.

1 . A hybrid-type rock splitting packer using water pressure and rubber inflation pressure, the hybrid-type rock splitting packer comprising:
 a packer unit ( 100 );   a water pressure supply control unit ( 200 ) including a water pressure pipe ( 210 ) and first spray holes ( 220 ) spaced a predetermined distance apart from each other at a longitudinal center of the water pressure pipe ( 210 ) and supplying water at a predetermined level to the first spray holes ( 220 ) through the water pressure pipe ( 210 );   a contraction pressure supply unit ( 300 ) including a contraction pressure pipe ( 310 ) installed at a predetermined distance from a side of the water pressure pipe ( 210 ) and supplying hydraulic pressure or water pressure at a predetermined level to the contraction pressure pipe ( 310 );   an inflation pressure supply unit ( 400 ) including an inflation pressure pipe ( 410 ) installed at a predetermined distance from the other side of the water pressure pipe ( 210 ) and hydraulic pressure or water pressure at a predetermined level to the inflation pressure pipe ( 410 ); and   a crack expansion unit ( 500 ) connected with the packer unit ( 100 );   wherein the packer unit ( 100 ) further includes:   a cylinder tube ( 102 ) including the contraction pressure pipe ( 310 ) and the inflation pressure pipe ( 410 );   a piston ( 101 ) disposed in the cylinder tube ( 102 ), being in contact with hydraulic pressure or water pressure supplied to the cylinder tube ( 102 ) at a side thereof, and being longitudinally moved by the hydraulic pressure or water pressure;   a wedge-type cylinder rod ( 110 ) being in contact with the other side of the piston ( 101 ) and being longitudinally moved by pressure applied by the piston ( 101 );   a holder ( 130 ) disposed at a side on an outer circumferential surface of the packer unit ( 100 ) and expanding in a width direction when the wedge-type cylinder rod ( 110 ) is inserted along an inner circumferential surface of the cylinder rod cover ( 120 ) formed on a side of the piston ( 101 ); and   a holder separation tab ( 140 ) disposed on a side of the cylinder rod cover ( 120 ) to smoothly induce separation of the holder ( 130 ) fitted in the wedge-type cylinder rod ( 110 ) when the wedge-type cylinder rod ( 110 ) is moved backward.   
     
     
         2 . (canceled) 
     
     
         3 . The hybrid-type rock splitting packer of  claim 1 , wherein the contraction pressure pipe ( 310 ) and the inflation pressure pipe ( 410 ) are formed to reciprocate longitudinally in the packer unit ( 100 ), whereby the piston ( 101 ) is manufactured in a double acting type enabling forward movement and backward movement in the longitudinal direction. 
     
     
         4 . The hybrid-type rock splitting packer of  claim 1 , wherein the contraction pressure pipe ( 310 ) and the inflation pressure pipe ( 410 ) further include an inflation pressure inlet ( 420 ) installed on a side of the packer unit ( 100 ) and a contraction pressure inlet ( 430 ) installed on the other side of the packer unit ( 100 ). 
     
     
         5 . The hybrid-type rock splitting packer of  claim 1 , wherein the material of the holder ( 130 ) is urethane resin mixed with rubber. 
     
     
         6 . The hybrid-type rock splitting packer of  claim 1 , wherein the holder separation tab ( 140 ) is formed from a side of the cylinder rod cover ( 120 ) to a side of a longitudinal center of the wedge-type cylinder rod ( 110 ), and when wedge-type cylinder rod ( 110 ) is moved backward and the holder ( 130 ) is fitted in and moved backward together with the wedge-type cylinder rod ( 110 ), an end of the holder separation tab ( 140 ) supports an end of the holder ( 130 ), whereby the holder ( 130 ) is smoothly separated from the wedge-type cylinder rod ( 110 ). 
     
     
         7 . The hybrid-type rock splitting packer of  claim 1 , wherein the crack expansion unit includes:
 an expansion supply pipe ( 510 ) connected with the contraction pressure pipe ( 310 ) or the inflation pressure pipe ( 410 ), being supplied with hydraulic pressure or water pressure at a predetermined level from the contraction pressure pipe ( 310 ) or the inflation pressure pipe ( 410 ), and supplying the hydraulic pressure or water pressure to second spray holes ( 511 ) longitudinally spaced a predetermined distance apart from each other;   a first rubber ( 520 ) disposed around the expansion supply pipe ( 510 );   a separation space ( 530 ) formed between the expansion supply pipe ( 510 ) and the first rubber ( 520 );   a second rubber ( 540 ) disposed around the first rubber ( 520 );   a third rubber ( 560 ) disposed around the second rubber ( 540 ); and   a first coupling socket ( 550 ) supporting both ends of the first rubber ( 520 ) and the second rubber ( 540 ), and   when hydraulic pressure or water pressure supplied from the contraction pressure pipe ( 310 ) or the inflation pressure pipe ( 410 ) flows in the separation space ( 530 ) through the second spray holes ( 511 ), the crack expansion unit ( 500 ) sequentially pressurizes the first rubber ( 520 ), the second rubber ( 540 ), and the third rubber ( 560 ) and inflates toward a rock.   
     
     
         8 . The hybrid-type rock splitting packer of  claim 7 , wherein a second coupling socket ( 570 ) supporting the circumferential portions of both sides of the second rubber ( 540 ) is further disposed between both ends of the third rubber ( 560 ) and an inner end of the first coupling socket ( 550 ).