Patent Abstract:
An industrial oil/dust collector is provided with a base, a motor and an air blower are installed on the exterior of the base, an air-inlet pipe and an air-outlet pipe are provided at the front of the motor to carry out quick suction and drainage functions, and inside the base there are an oil-collecting tank and a spare oil-collecting tank provided with multiple filtering devices to filter impurities of the oil, so as to prolong the service life of the motor and the air blower.

Full Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to an industrial oil/dust collector with innovatory features, and more particularly to an industrial oil/dust collector which can efficiently and quickly collect and drain off oil/dust, and it is provided with multiple filtering devices inside the base to filter impurity of the oil, so as to prolong the service life of the industrial oil/dust collector. 
   2. Brief Description of the Prior Art 
   At present, gearbox oil, motor oil, pressure oil, hydraulic oil, metal-cutting oil and the like are widely applied in many machines in factories. These industrial oils, after a period of service, must be replaced by new oils, so as to keep the machines running smoothly, and it is necessary to use an industrial oil/dust collector to dispose the used oils (usually called waste oils). 
   Referring to  FIG. 1 , a conventional industrial oil/dust collector is composed by a main body  10 , an upper cover  101 , a motor  102 , a fan  103 , a filtering device  104  and a floating ball  105 . The upper cover  101  is installed on the top of the main body  10 , the motor  102  under the tipper cover  101 , the fan  103  under the motor  102 , and the filtering device  104  and the floating ball  105  under the fan  103 . 
   Referring to  FIG. 2 , while being operated, the motor  102  and the fan  103  of the conventional oil/dust collector are started to suck the liquid (industrial waste oil or chemical water) through the suction pipe  106  to the chamber  107  inside the main body  10 . After being operated for several times until the floating ball  105  ascends to plug up the air-outlet  108 . 
   There are following drawbacks in the above-described structure and operation of the conventional oil/dust collector: 
   1. When the chamber inside the main body is filled with liquid, it is necessary to open the upper cover and then dump the liquid. Since the main body is considerably weighty, it takes time and pain to do so. 
   2. The floating ball blocks the liquid from rising up when the chamber is filled with liquid, but it is not completely closed with the air-outlet. Therefore, after a long time of use, it is easy for the motor to be damaged due to the liquid pollution, and it is necessary to increase the cost to buy another new oil/dust collector. 
   3. The liquid sucked through the pipe contains metal impurities, and the conventional industrial oil/dust collector can not collect the metal impurities together. Without a good filtering effect, it is difficult to achieve the purpose of practicality. 
   SUMMARY OF THE INVENTION 
   Therefore, the objective of the present invention is to provide an industrial oil/dust collector that can substantially obviate the drawbacks of the related conventional industrial oil/dust collector. 
   An objective of the present invention is to provide an industrial oil/dust collector that can efficiently and quickly suck or drain off oil/dust. 
   Another objective of the present invention is to provide an industrial oil/dust collector that is provided with multiple filtering processes, and the removable filter baskets can be easily replaced. 
   Yet another objective of the present invention is to provide an industrial oil/dust collector which is provided with a spare oil-collecting tank that can restore oil overflowing from the main oil-collecting tank and filter impurities of the oil once, so as to prolong the service life of the motor and the air blower. 
   Accordingly, an industrial oil/dust collector in the present invention is provided with a base, a motor and an air blower are installed on the exterior of the base, an air-inlet pipe and an air-outlet pipe are provided at the front of the motor to carry out quick suction and drainage functions, and inside the base there are an oil-collecting tank and a spare oil-collecting tank provided with multiole filtering devices to filter impurities of the oil, so as to prolong the service life of the motor and the air blower. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which: 
       FIG. 1  is a schematic sectional view of a conventional industrial oil/dust collector; 
       FIG. 2  is a schematic sectional view of a conventional industrial oil/dust collector showing the floating ball ascending to plug up the air-outlet hole; 
       FIG. 3  is a schematic sectional view of an embodiment of the industrial oil/dust collector in accordance with the present invention; 
       FIG. 4  is a sectional view of an embodiment of a removable filter blanket being operated in accordance with the present invention; 
       FIG. 5  is a sectional view of an embodiment of the dummy plate being operated in accordance with the present invention; 
       FIG. 6  is a schematic view of an embodiment of the industrial oil/dust collector in accordance with the present invention being operated to suck oil; 
       FIG. 7  is a top view of an embodiment of the industrial oil/dust collector in accordance with the present invention being operated to suck oil; 
       FIG. 8  is a schematic view of an embodiment of the industrial oil/dust collector in accordance with the present invention being operated to drain off oil; 
       FIG. 9  is a top view of an embodiment of the industrial oil/dust collector in accordance with the present invention being operated to drain off oil; and, 
       FIG. 10  is a sectional view of another embodiment of the industrial oil/dust collector in accordance with the present invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   Referring to  FIG. 3 , an industrial oil/dust collector includes a base  1 , and an oil-collecting tank  12  and a spare oil-collecting tank  13  are provided in the interior of the base  1 . A motor  11  is installed on the exterior of the base  1 , an air blower  111  is provided at the back of the motor  11 , and an air-inlet pipe  112  and an air-outlet pipe  113  are provided at the front of the motor  11 . An air filter  1121  is provided on the upper end of the air-inlet pipe  112 , a first switch valve  1122  and a second switch valve  1123  are provided at the bottom of the air filter  1121 , and the bottom end of the air-inlet pipe  112  is connected to the spare oil-collecting tank  13 . The air-outlet pipe  113  is provided with a third switch valve  1131  and a fourth switch valve  1132 , and the bottom end of the air-outlet pipe  113  is connected to the spare oil-collecting tank  13 . 
   The oil-collecting tank  12  is pivotally jointed with a suction pipe  14 , which is provided with a switch valve  141 . One end of the suction pipe  14  is connected to a suction pipe cover  142 . At one side of the suction pipe cover  142  is provided with a lock article  1421 . A push pole  15  and a suction pipe head receiving groove  16  are provided at one side of the base  1 , and a switching device  151  is provided on the push pole  15 . A drainage pipe  17  is provided at the lower section of one side of the base  1 , so as for the liquid in the oil-collecting tank  12  to be drained off, and a second drainage pipe  18  is provided at the lower section of the other side of the base  1 , so as for the liquid in the spare oil-collecting tank  13  to be drained off. Two cleaning openings  19  and  20  are provided on the surfaces of the base  1  respectively for cleaning the oil-collecting tank  12  and the spare oil-collecting tank  13 . Wheels  21  are provided on the bottom of the base  1 . 
   The oil-collecting tank  12  is provided with a filtering chamber  121  at the connection to the suction pipe cover  142 . A removable filter basket  1211  is provided inside the filtering chamber  121 , and the removable filter basket  1211  is provided with a suspension loop  1212 , as shown in  FIG. 4 . A partition plate  122  is provided at one side of the filtering chamber  121 , and two through portions  1221  are respectively carved at the top left and right sides of the partition plate  122 , as shown in  FIG. 5 . A filter net  123  is provided at one side of the partition plate  122 , and a floating ball  1231  is provided in the filter net  123 . A connecting pipe  124  is provided on the top of the filter net  123 , and the connecting pipe  124  is connected to the spare oil-collecting tank  13 . The spare oil-collecting tank  13  is also provided with a filter device  131 , including a filter net and a floating ball. 
   Referring to  FIGS. 6 and 7 , while the industrial oil/dust collector being operated to suck oil, the switching device  151  is turned on to start the motor  11  and run the air blower  111 , and the third switch valve  1131  is opened for the air to enter, be filtered by the air filter  1121 , cycle in the oil-collecting tank  12  and the spare oil-collecting tank  13  and then be exhausted through the air-outlet pipe  113 . Therefore, it will become vacuum inside the oil-collecting tank  12  and the spare oil-collecting tank  13 , so as to drive the suction pipe  14  begin sucking the liquid (wast oil or chemical water) and the contained metal impurities. After being filtered by the removable filter basket  1211  of the filtering chamber  121 , the relatively heavier impurities are separated by the partition plate  122  and deposit down. The through portions  1221  of the partition plate  122  will allow the air to flow through. When the liquid rises up from the bottom of the oil-collecting tank  12  to the level of the floating ball  1231 , the floating ball  1231  will be forced to plug up the inlet of the connecting pipe  124 , so as to prevent the liquid from overflowing. Even the liquid overflows, it will enter the spare oil-collecting tank  13 . Since the spare oil-collecting tank  13  is also provided with a filter device  131 , safe filtering can be made for the second time. 
   Referring to  FIGS. 8 and 9 , while the industrial oil/dust collector being operated to drain off oil, the switching device  151  is turned on to start the motor  11  and run the air blower  111 , and the first switch valve  1122  and the fourth switch valve  1132  are opened, while the second switch valve  1123  and the third switch valve  1131  are closed. The air will enter, be filtered by the air filter  1121 , and cycle in the oil-collecting tank  12  and the spare oil-collecting tank  13 . Because the third switch valve  1131  of the air-outlet pipe  113  is closed, a great pressure is formed in the oil-collecting tank  12  and the spare oil-collecting tank  13  to force the liquid run out through the drainage pipe  17  and the second drainage pipe  18 , so as for the liquid to be effectively drained off. 
   Referring to  FIG. 10 , the present invention may be provided with a single oil-collecting tank  12 . The extremes of the air-inlet pipe  112  and the air-outlet pipe  113  are directly connected through the motor  11  to the top of the oil-collecting tank  12 . The operation is the same as above-described, and it can also reach the same functional improvement and practicalibility. 
   While the preferred embodiments of the invention have been described above, it will be recognized and understood that various modifications may be made therein, and the appended claims are intended to cover all such modifications which may fall within the spirit and scope of the invention.

Technology Classification (CPC): 1