Automatic draining system

Abstract

An automatic draining system can include a driving mechanism, a first housing coupled to the driving mechanism, a vacuum pump and a bulkhead both coupled to the first housing, an inletting conduit and an outletting conduit both coupled to the bulkhead, a controlling device electrically coupled to the vacuum pump, a draining mechanism electrically coupled to the vacuum pump, and a first conduit and a second conduit both coupled to the first cylinder. The draining mechanism can include a first cylinder coupled to the bulkhead, a piston rod extending through the first cylinder; and a first piston assembly coupled to an end of the piston rod and received in the first cylinder. An end of the first conduit coupled to the first cylinder, the other end inserting into a pre-drained liquid. An end of the second conduit coupled to the first cylinder, the other end communicating with the outletting conduit.

What is claimed is: 
     
         1 . An automatic draining system for draining fluid, the automatic draining system comprising:
 a first housing;   a driving mechanism coupled to the first housing;   a vacuum pump coupled to the first housing;   a bulkhead coupled to the first housing, the bulkhead and the first housing cooperatively defining a first receiving cavity which communicates with the vacuum pump;   an inletting conduit coupled to the bulkhead and communicating with the first receiving cavity;   an outletting conduit coupled to the bulkhead and communicating with the first receiving cavity;   a controlling device in signal communication with the vacuum pump; and   a draining mechanism coupled to the vacuum pump, the draining mechanism comprising:
 a first cylinder coupled to the bulkhead; 
 a piston rod extending through the first cylinder, and couple to the driving mechanism; and 
 a first piston assembly coupled to an end of the piston rod and received in the first cylinder; 
   a first conduit having a first end coupled to the first cylinder, and a second end in fluid communication with an external container receiving a pre-drained liquid therein; and   a second conduit having a first end coupled to the first cylinder, and a second end in fluid communication with the outletting conduit,   
       wherein the vacuum pump is configured to suck up the air contained in the first receiving cavity, such that the first receiving cavity is in a vacuum condition, enabling the pre-draining liquid to flow through the inletting conduit into the first receiving cavity; and 
       the controlling device is configured to detect a level of the pre-drained liquid in the first receiving cavity, and configured to control the driving mechanism to move the piston rod, such that the pre-drained liquid can be drained out. 
     
     
         2 . The automatic draining system of  claim 1 , wherein the automatic draining system further comprises a supporting rod mounted on the bulkhead and extending into the first receiving cavity, a float slidably sleeved on the supporting rod, a receptor mounted on the bulkhead, and a sensor positioned on the supporting rod; the float is capable of floating on the pre-drained liquid, the sensor is configured to detect a location of the float, and deliver and transmit an information of the location of the float to the receptor; the receptor is coupled to the driving mechanism and is configured to control the driving mechanism to work. 
     
     
         3 . The automatic draining system of  claim 1 , wherein the automatic draining system further comprises a first check valve positioned in the first conduit, and a second check valve positioned in the second conduit; the first check valve is configured to enable fluid to flow from the first cylinder towards the first conduit; the second check valve is configured to enable fluid to flow from the second conduit towards the first cylinder. 
     
     
         4 . The automatic draining system of  claim 1 , wherein the draining mechanism further comprises a connecting member cover on the first cylinder; the piston rod comprises a main body extending through the connecting member; a sealing member is positioned between the main body and the connecting member. 
     
     
         5 . The automatic draining system of  claim 4 , wherein the piston rod further comprises a first fixing portion and a second fixing portion on opposite ends of the main body; the first piston assembly is sleeved on the first fixing portion and the driving mechanism is positioned on the second fixing portion. 
     
     
         6 . The automatic draining system of  claim 5 , wherein he main body defines a first receiving hole at a periphery thereof; the receiving hole is adjacent to the first fixing portion and extends along radial direction of the main body; the first fixing portion defines a second receiving hole on an end thereof; the second receiving hole is away from the main body and extending along an axis of the first fixing portion; the second receiving hole extends into the main body and communicates with the first receiving hole. 
     
     
         7 . The automatic draining system of  claim 4 , wherein the first piston assembly comprises a mounting base mounted on the piston rod, and a magnetic member sleeved on the mounting base. 
     
     
         8 . The automatic draining system of  claim 7 , wherein he first piston assembly further comprises a piston body sleeved on the piston rod; the piston rod is positioned on a side of the magnetic member adjacent to the first cover. 
     
     
         9 . The automatic draining system of  claim 8 , wherein the first piston assembly further comprises a sealing ring positioned on an outer surface of the piston rod and resisting against an inner surface of the cover. 
     
     
         10 . The automatic draining system of  claim 8 , wherein the first piston assembly further comprises two cushions; one of the cushion is positioned on a surface of the mounting base facing the connecting member; the other cushion is positioned on a surface of the piston body departing from the magnetic. 
     
     
         11 . The automatic draining system of  claim 8 , wherein the piston rod further comprises a connecting portion on an end of the main body; the first piston assembly further comprises a securing member, the securing member is sleeved on the piston rod adjacent to the piston body. 
     
     
         12 . The automatic draining system of  claim 11 , wherein the connecting portion is equipped with an external thread on an outer surface thereof, the securing member threads to the connecting portion to fix the first piston assembly. 
     
     
         13 . The automatic draining system of  claim 11 , wherein the driving mechanism comprises a second cylinder and a second piston assembly, the second cylinder is coupled to the first cylinder, an end of the piston rod away from the first cylinder is received in the second cylinder; the second piston assembly is sleeved on the piston rod and slidably received in the second cylinder. 
     
     
         14 . An automatic draining system comprising:
 a first housing;   a driving mechanism coupled to the first housing;   a vacuum pump coupled to the first housing;   a bulkhead coupled to the first housing, the bulkhead and the first housing cooperatively defining a first receiving cavity which communicates with the vacuum pump;   an inletting conduit coupled to the bulkhead and communicating with the first receiving cavity;   an outletting conduit coupled to the bulkhead and communicating with the first receiving cavity;   a controlling device in signal communication with the vacuum pump; and   a draining mechanism coupled to the vacuum pump, the draining mechanism comprising:
 a first cylinder coupled to the bulkhead; 
 a piston rod extending through the first cylinder, and couple to the driving mechanism; and 
 a first piston assembly coupled to an end of the piston rod and received in the first cylinder; 
   a first conduit having a first end coupled to the first cylinder, and a second end in fluid communication with an external container receiving a pre-drained liquid therein; and   a second conduit having a first end coupled to the first cylinder, and a second end in fluid communication with the outletting conduit.   
     
     
         15 . The automatic draining system of  claim 14 , wherein the automatic draining system further comprises a supporting rod mounted on the bulkhead and extending into the first receiving cavity, a float slidably sleeved on the supporting rod, a receptor mounted on the bulkhead, and a sensor positioned on the supporting rod; the float is capable of floating on the pre-drained liquid, the sensor is configured to detect a location of the float, and deliver and transmit an information of the location of the float to the receptor; the receptor is coupled to the driving mechanism and is configured to control the driving mechanism to work. 
     
     
         16 . The automatic draining system of  claim 14 , wherein the automatic draining system further comprises a first check valve positioned in the first conduit, and a second check valve positioned in the second conduit; the first check valve is configured to enable fluid to flow from the first cylinder towards the first conduit; the second check valve is configured to enable fluid to flow from the second conduit towards the first cylinder. 
     
     
         17 . The automatic draining system of  claim 14 , wherein the draining mechanism further comprises a connecting member cover on the first cylinder; the piston rod comprises a main body extending through the connecting member; a sealing member is positioned between the main body and the connecting member. 
     
     
         18 . The automatic draining system of  claim 17 , wherein the piston rod further comprises a first fixing portion and a second fixing portion on opposite ends of the main body; the first piston assembly is sleeved on the first fixing portion and the driving mechanism is positioned on the second fixing portion. 
     
     
         19 . The automatic draining system of  claim 18 , wherein he main body defines a first receiving hole at a periphery thereof; the receiving hole is adjacent to the first fixing portion and extends along radial direction of the main body; the first fixing portion defines a second receiving hole on an end thereof; the second receiving hole is away from the main body and extending along an axis of the first fixing portion; the second receiving hole extends into the main body and communicates with the first receiving hole. 
     
     
         20 . An automatic draining system comprising:
 a first housing;   a vacuum pump coupled to the first housing;   a bulkhead coupled to the first housing, the bulkhead and the first housing cooperatively defining a first receiving cavity which communicates with the vacuum pump;   an inletting conduit coupled to the bulkhead and communicating with the first receiving cavity;   an outletting conduit coupled to the bulkhead and communicating with the first receiving cavity;   a controlling device in signal communication with the vacuum pump; and   a draining mechanism coupled to the vacuum pump, the draining mechanism comprising:
 a first cylinder coupled to the bulkhead; the first cylinder 
 a piston rod extending through the first cylinder; and 
 a first piston assembly coupled to an end of the piston rod and received in the first cylinder; 
   a first conduit having a first end coupled to the first cylinder, and a second end in fluid communication with an external container receiving a pre-drained liquid therein; and   a second conduit having a first end coupled to the first cylinder, and a second end in fluid communication with the outletting conduit.