Rock anchor grouting tool

Abstract

A grouting tool includes a body element having a body element leading end and a body element trailing end. A collet member having a collet member trailing end in fluid communication with the body element leading end, and a collet member leading end having a hollow passage adapted to receive a grout tube. A grout injection port is secured to the body element trailing end. A portion of the collet member is radially compressible to provide a clamping force adapted to secure the grout tube to the grouting tool.

I claim: 
     
         1 . A grouting tool comprising:
 a body element having a body element leading end and a body element trailing end;   a collet member having a collet member trailing end in fluid communication with the body element leading end, and a collet member leading end having a hollow passage adapted to receive a grout tube;   a grout injection port secured to the body element trailing end;   wherein a portion of the collet member is radially compressible to provide a clamping force adapted to secure the grout tube to the grouting tool.   
     
     
         2 . The grouting tool of  claim 1 , wherein the collet member includes a first longitudinally extending slot. 
     
     
         3 . The grouting tool of  claim 2 , wherein the collet member includes a circumferentially extending slot which extends generally perpendicular to and intersects with the first longitudinally extending slot. 
     
     
         4 . The grouting tool of  claim 3 , further including a second longitudinally extending slot, wherein a resilient arm is defined by the first and second longitudinally extending slots and the circumferentially extending slot. 
     
     
         5 . The grouting tool of  claim 1  comprising a first lever pivotally connected to the collet member. 
     
     
         6 . The grouting tool of  claim 5 , further comprising a clevis shaped element which includes two clevis arms and a central attachment region which is connected to the collet member, wherein the first lever is pivotally connected to the two clevis arms. 
     
     
         7 . The grouting tool of  claims 6 , wherein the first lever includes a first engagement formation adapted to engage with the collet member. 
     
     
         8 . The grouting tool of  claim 7 , wherein the first engagement formation is defined by a projection adapted to abut against the collet member. 
     
     
         9 . The grouting tool of  claim 5 , further comprising a second lever pivotally connected to the body element. 
     
     
         10 . The grouting tool of  claim 9 , wherein the first lever includes a first lever engagement formation and the second lever includes a corresponding second lever engagement formation. 
     
     
         11 . The grouting tool of  claim 10 , wherein the first lever engagement formation includes a pin and the second lever engagement formation includes a slot. 
     
     
         12 . The grouting tool of  claim 9 , wherein the second lever includes a handle. 
     
     
         13 . The grouting tool of  claim 1 , further comprising a locking pin, the locking pin extending through a hole formed in the body element and a corresponding threaded hole formed in the grout injection port, the locking pin having a threaded shaft for securing the grout injection port to the body element. 
     
     
         14 . The grouting tool of  claim 1 , wherein the body element includes a body element slot. 
     
     
         15 . The grouting tool of  claim 14 , wherein the grout injection port includes a nozzle, the nozzle being located within the body element adjacent to the body element slot. 
     
     
         16 . The grouting tool of  claim 15 , wherein the nozzle includes an annular rubber grommet. 
     
     
         17 . The grouting tool of  claim 1 , wherein the grout injection port includes a cut-out which engages with a corresponding projection formed on the body element.