Hydraulic pump

Abstract

A hydraulic pump for delivering water from a low level water supply zone to a high level water supply zone includes a power equipment to drive and rotate a slant board which drives a piston moving reciprocally in a housing chamber of a cylinder. The housing chamber has a suction port and a discharge port. The reciprocal movement of the piston in the housing chamber generates a pressure difference to deliver the water from the low level water supply zone to the high level water supply zone.

1 . A hydraulic pump for delivering water from a low level water supply zone to a high level water supply zone, comprising: 
 a power equipment having a power output shaft which has an axis as the rotation center of the power output shaft;    a slant board coupled on the power output shaft to be driven by the power equipment to rotate having a rotation center, the normal line of the slant board forming an angle with the axis of the power output shaft; and    a water delivery mechanism having a cylinder, a piston and a returning spring, the cylinder having a cylindrical housing chamber which has an opening and a suction port and a discharge port remote from the opening, the suction port being connected and communicated with the low level water supply zone, the discharge port being connected and communicated with the high level water supply zone, the suction port and the discharge port having respectively an one way valve, the piston having an outer diameter formed according to the inner diameter of the housing chamber and being placed in the housing chamber through the opening, the returning spring being located between the piston and the cylinder, the piston having an exposed top end in contact with the slant board outside the rotation center such that rotation of the slant board drives and pushes the piston and the returning spring to move the piston reciprocally in the housing chamber to allow the water delivery mechanism to deliver the water from the low level water supply zone to the high level water supply zone.    
   
   
       2 . The hydraulic pump of  claim 1 , wherein the surface of the housing chamber is coated with a material of a low friction coefficient.  
   
   
       3 . The hydraulic pump of  claim 2 , wherein the material of a low friction coefficient is poly-terafluoroethylene (PTFE).  
   
   
       4 . The hydraulic pump of  claim 1 , wherein the one way valve includes a blocking member coupling with an elastic element to close the suction port and the discharge port.  
   
   
       5 . The hydraulic pump of  claim 1  further having a bracket for holding multiple sets of the water delivery mechanism.  
   
   
       6 . The hydraulic pump of  claim 1 , wherein multiple sets of the water delivery mechanism are formed in a strut.  
   
   
       7 . The hydraulic pump of  claim 1 , wherein the slant board is pivotally coupled on the power output shaft which has an anchor board fixedly mounted thereon, the anchor board having an adjustment bolt screwed thereon, the slant board and the adjustment bolt being pivotally coupled to two ends of an adjustment rod such that the angle between the normal line and the axis is changeable by adjusting the adjustment bolt.  
   
   
       8 . The hydraulic pump of  claim 7 , wherein multiple sets of the adjustment bolt are evenly and symmetrically located on the anchor board about the power output shaft.  
   
   
       9 . The hydraulic pump of  claim 1 , wherein the piston has an O-ring.  
   
   
       10 . The hydraulic pump of  claim 1 , wherein the exposed top end of the piston is semi-spherical.  
   
   
       11 . A hydraulic pump for delivering water from a low level water supply zone to a high level water supply zone, comprising: 
 a power equipment having a power output shaft which has an axis as the rotation center of the power output shaft;    a slant board coupled on the power output shaft to be driven by the power equipment to rotate having a rotation center, the normal line of the slant board forming an angle with the axis of the power output shaft, the slant board having a circular track adhered to the surface thereof that is coaxial with the rotation center, the circular track being coupled with a guiding member; and    a water delivery mechanism having a cylinder and a piston, the cylinder having a cylindrical housing chamber which has an opening and a suction port and a discharge port remote from the opening, the suction port being connected and communicated with the low level water supply zone, the discharge port being connected and communicated with the high level water supply zone, the suction port and the discharge port having respectively an one way valve, the piston having an outer diameter formed according to the inner diameter of the housing chamber and being placed in the housing chamber through the opening, the piston being connected to the guiding member such that rotation of the slant board drives and pushes the piston moving reciprocally in the housing chamber to allow the water delivery mechanism to deliver the water from the low level water supply zone to the high level water supply zone.    
   
   
       12 . The hydraulic pump of  claim 11 , wherein the circular track is replaced by a circular trough which is formed on the slant board, the guiding member being wedged in the circular trough and connected to the piston.  
   
   
       13 . The hydraulic pump of  claim 11 , wherein the surface of the housing chamber is coated with a material of a low friction coefficient.  
   
   
       14 . The hydraulic pump of  claim 13 , wherein the material of a low friction coefficient is poly-terafluoroethylene (PTFE).  
   
   
       15 . The hydraulic pump of  claim 11 , wherein the one way valve includes a blocking member coupling with an elastic element to close the suction port and the discharge port.  
   
   
       16 . The hydraulic pump of  claim 11  further having a bracket for holding multiple sets of the water delivery mechanism.  
   
   
       17 . The hydraulic pump of  claim 11 , wherein multiple sets of the water delivery mechanism are formed in a strut.  
   
   
       18 . The hydraulic pump of  claim 11 , wherein the guiding member and the piston are bridged by a universal joint, the slant board being pivotally coupled on the power output shaft which has an anchor board fixedly mounted thereon, the anchor board having an adjustment bolt screwed thereon, the slant board and the adjustment bolt being pivotally coupled to two ends of an adjustment rod such that the angle between the normal line and the axis is changeable by adjusting the adjustment bolt.  
   
   
       19 . The hydraulic pump of  claim 18 , wherein multiple sets of the adjustment bolt are evenly and symmetrically located on the anchor board about the power output shaft.  
   
   
       20 . The hydraulic pump of  claim 11 , wherein the piston has an O-ring.