Automatic lubricator

Abstract

An automatic lubricator using a magnetic reflection field plate is provided to thereby achieve a more stable and economic lubricator. The automatic lubricator includes an upper cover enclosed by and combined with a cover holder and a hollow lower cover on the lower end of which a lubrication hole is provided and in which a lubricant is filled, in which the upper cover and the lower cover are combined with each other to form a single body, and respective components for filling a lubricant into the body formed of the upper cover and the lower cover are assembled with a mutual association relationship. Here, a circuit board having a control circuit and a microprocessor for various controls and a movement assembly that transfers power with a driving manner using a magnetic reflection field plate, are mounted and assembled in the upper cover. A dry cell chamber accommodating a dry cell is provided in the upper end of the lower cover and between the upper cover and the lower cover. The movement assembly whose teeth are engaged with each other in operation and a rotational shaft are mutually connected in the middle of the lower cover which is the upper portion of the dry cell chamber. A piston that goes down according to rotation of the rotational shaft and lubricates a lubricant, is installed with a predetermined gap on the inner wall of the lower cover toward the lower portion of the dry cell chamber, and at the state of penetrating into and coupling with the rotational shaft.

What is claimed is:  
     
         1 . An automatic lubricator comprising: 
 an upper cover enclosed by and combined with a cover holder; and    a hollow lower cover on the lower end of which a lubrication hole is provided and in which a lubricant is filled,    wherein the upper cover and the lower cover are combined with each other to form a single body, and respective components for filling a lubricant into the body formed of the upper cover and the lower cover are assembled with a mutual association relationship,    wherein a circuit board having a control circuit and a microprocessor for various controls and a movement assembly that transfers power with a driving manner using a magnetic reflection field plate, are mounted and assembled in the upper cover,    wherein a dry cell chamber accommodating a dry cell is provided in the upper end of the lower cover and between the upper cover and the lower cover,    wherein the movement assembly whose teeth are engaged with each other in operation and a rotational shaft are mutually connected in the middle of the lower cover which is the upper portion of the dry cell chamber, and    wherein a piston that goes down according to rotation of the rotational shaft and lubricates a lubricant, is installed with a predetermined gap on the inner wall of the lower cover toward the lower portion of the dry cell chamber, and at the state of penetrating into and coupling with the rotational shaft.    
     
     
         2 . The automatic lubricator of  claim 1 , wherein the circuit board is provided with a circuit including light emitting diodes, various detection sensors, a microprocessor, a 7-segment LCD, resistors, LEDs, capacitors, and a variable switch or multi-switch.  
     
     
         3 . The automatic lubricator of  claim 1 , wherein in the case of a driving method using a magnetic reflection field plate in the movement assembly, two iron-core plates that are integrally arranged at an interval, a solenoid coil wound around one side of the iron-core plates, and a magnetic gear located in an unfolded form between the two iron-core plates, are applied with current to generate induction current and rotate the magnetic gear by change in polarities, and 
 wherein a reduction gear set formed by tooth-engaging a number of gears in the movement assembly is linked according to rotation of the magnetic gear, to rotate the rotational shaft connected to the movement assembly to transmit power to the piston.    
     
     
         4 . The automatic lubricator of  claim 1 , wherein the rotational shaft is formed of a screw-shaped shaft and is connected from the center of the lower cover up to the very upper end of the filling hole, 
 wherein one end of the rotational shaft is connected to the final gear in the movement assembly, and is fitted into the piston via a transmission fixed in the piston to thereby make the piston going downwards along the rotational shaft, according to rotation of the rotational shaft.    
     
     
         5 . The automatic lubricator of  claim 1 , wherein the direct-current supplied from the dry cells to the movement assembly is converted into a periodic current pulse having an alternating current characteristic via a circuit structure of the circuit board.  
     
     
         6 . The automatic lubricator of  claim 1 , wherein a circuit provided in the circuit board adjusts a current pulse period via a variable resistor to enable a selective time setting by a variety of periods.  
     
     
         7 . The automatic lubricator of  claim 2 , wherein the detection sensor provided in the circuit board detects whether the piston does not go down or an overload is applied, at the state of being set to be a predetermined set value according to a pulse of current supplied via a number of resistors, thus warning a user of an operational state.  
     
     
         8 . The automatic lubricator of  claim 1 , wherein when the excessive pressure is applied to the piston and the rotational shaft, the rotational shaft is suppressed so as not to be seceded from the center thereof, and the piston and the rotational shaft are assembled via the transmission and the screw-combination for smooth down-movement.  
     
     
         9 . The automatic lubricator of  claim 3 , wherein the movement assembly is assembled in the case, and when the final gear is driven in the reduction gear set, and an excessive pressure is applied to the upper end of the rotational shaft driving the piston, phenomena of sliding or destruction of the final gear and bending of the axis of the final gear is easily suppressed.  
     
     
         10 . The automatic lubricator of  claim 1 , wherein a microprocessor provided in the circuit board adjusts a pulse period at a desired value, and automatically calculates and selects periods of a variety of forms.  
     
     
         11 . The automatic lubricator of  claim 2 , wherein a microprocessor provided in the circuit board adjusts a pulse period at a desired value, and automatically calculates and selects periods of a variety of forms.  
     
     
         12 . The automatic lubricator of  claim 2 , wherein the circuit board uses a 7-segment LCD having a multi-type characteristic and a LED turning on/off control, to thereby supply various kinds of power and positively suppress an excessive power consumption.  
     
     
         13 . The automatic lubricator of  claim 1 , wherein a body including the upper cover and the lower cover is made of a transparent material or semi-transparent material to easily grasp an amount of the lubricant filled in the body.