Abstract:
A magnetic control valve is to block an outlet end of a water inflow passage and an inlet end of a water outflow passage of a connection pipe by using a rubber ring. A valve of the rubber ring is opened or closed by a magnetic control switch. The magnetic control switch mainly takes a valve rod carrying permanent magnetic force that completely controls direction of electromagnetic pole as a power source for moving. When a valve plug at an end of the valve rod seals the valve, a metal plate capable of being sucked by magnetic force is combined with the rubber ring to allow both to generate magnetic sucking effect, thereby firmly closing.

Description:
FIELD OF THE INVENTION 
     The present invention relates to a facility for controlling the turn-on state or the turn-off state of water flow, and more particularly to a technical innovation field of controlling the turn-on state or the turn-off state of water flow by applying a magnetic control valve. 
     BACKGROUND OF THE INVENTION 
     According to prior arts that are similar to a technique shown in the case, including U.S. published applications 20050184261, 20100019179, 20090224191, 20080216896, U.S. Pat. Nos. 7,296,593, 6,691,937, 6,688,577, 6,675,826, 6,619,612, 5,497,135, 6,073,904, 6,076,550, 7,637,475, 5,599,003, 5,503,362, 5,269,333, 5,145,145, 4,948,090, 4,934,651, 6,457,697, 5,738,138, 5,676,342, 7,703,740, 5,565,747, and 5,622,351, the technique features shown in the foregoing prior arts utilize a valve to partition pipes and water passages. The valve is controlled by a valve rod to show an opening or closing state. The valve rod is disposed to an end of a rod body. Another end of the rod body corresponding to the end of disposing the valve rod has a flexible element. The main functionality of the flexible element is to push the rod body to allow the valve rod to seal the valve. The rod body then is driven to displace to allow the valve rod of one end to eject from the valve. In the foregoing published applications and patents, most structures are driven by magnetic control devices. 
     However, the defects commonly existing in the foregoing prior arts are that when the valve is opened, the moved rod body moves toward a direction that is opposite to the pushing of the flexible element. A reverse damper generated by the flexible element that is compressed may cause shift phenomenon at the moving path for the rod body, resulting in non-smooth situation. 
     Moreover, the rod bodies utilized in the prior arts did not have magnetic function, and parts of disposing the valve are purely made of rubber. Consequently, when the valve rod disposed to an end of the rod body plugs up the valve, the pushing force generated by the flexible element is merely taken as a power source. None of any company can develop other innovate design in the present time. The conventional bottleneck needs to be break through. 
     Further, the foregoing published application and patents may also require many parts assembled to the whole structures to have drawbacks of higher manufacturing costs and labor costs at the installation operation. 
     In addition, the foregoing published application and patents must reserve higher lengths in an aspect of the structural design for controlling the valve. Consequently, the size of the magnetic control valve is extremely big and may not be reduced to achieve light weight and small sizes. 
     Accordingly, to overcome the foregoing shortcomings, the inventor(s) of the present invention based on years of experience in the related field to conduct extensive researches and experiments, and finally invented a magnetic control valve. 
     SUMMARY OF THE INVENTION 
     A primary objective of the present invention is to provide a magnetic control valve that has less parts than conventional structures and low manufacturing cost, smooth control motions of opening and closing valves, and light weight for volume without occupying spaces. 
     To achieve the foregoing objective, the magnetic control valve provided by the invention comprises a connection pipe having a water inflow passage and a water outflow passage. A circular seat is disposed to an engaging place between an outlet end of the water inflow passage and an inlet end of the water outflow passage, wherein a bottom of the circular seat forms an external baffle ring at the outlet end of the water inflow passage, and an inner concave slot disposed to an upper end surface of the external baffle ring. An inner baffle ring is formed at the inlet end of the water outflow passage, and the external baffle ring and the inner baffle ring are disposed at the same axle core; 
     A rubber ring is combined with a metal plate, wherein the metal plate in the embodiment is encapsulated inside the rubber ring, and the metal plate can be made of a metal material capable of being attracted by magnetic force, and the metal plate has a central hole. A plurality of through holes is distributed to a periphery of the central hole. A valve, which is encapsulated in the central hole of the metal plate, is formed at the rubber ring. The glue body of the rubber ring is filled within each through hole to cascade the glue bodies covering the metal plate so that the metal plate is firmly combined with the rubber ring. In addition, a flexible loop blade is connected to a periphery of the rubber ring, and an external ring is connected to a periphery of the flexible loop blade. The periphery at a bottom of the rubber ring can completely seal the inlet end of the water outflow passage, and a bottom of the external ring can seal the outlet end of the water inflow passage. A convex ring is downwardly extended from an external edge at the bottom of the external ring. The convex ring can closely fit the inner concave slot of the circular seat. More than one communicating water passages are disposed to a region of the flexible loop blade. 
     A magnetic control switch comprises a pipe seat, an upper cover, a magnetic sucking element and a valve rod. The pipe seat has a partition to divide the pipe seat into an independently upper pipe body space having upward opening and an independently lower pipe body space having downward opening. The pipe seat has a lower containing chamber jointed with a bottom of the lower pipe body space. An external frame is downwardly extended from the external periphery of the lower containing chamber. A bottom of the external frame can closely lean against an upper end surface of the external ring, and an external portion of the external frame can closely combine with the inside of the circular seat of the connection pipe. An exterior of the pipe seat is wound by an electromagnetic coil. The covering scope of the electromagnetic coil coves the lower pipe body space and the upper pipe body space, and the electromagnetic coil is connected to a magnetic pole switch. The electromagnetic coil can be controlled by the magnetic pole switch to generate a positive pole magnetic field or a negative pole magnetic field. 
     The upper cover can seal an upper opening end of the upper pipe body space. The magnetic sucking element is contained inside the upper pipe body space without any movement. The magnetic sucking element is made of a material capable of being attracted by a magnetic element. 
     The valve rod is fit inside the lower pipe body space and can be properly displaced and regulated. A bottom of the valve rod has a valve plug capable of completely sealing the valve of the rubber ring. The valve rod can be made of a magnetic material. In the embodiment, the valve rod comprises a magnetic element, a rubber sleeve pipe and a sealing cap for encapsulating the magnetic element. The valve plug of the valve rod is disposed at the external bottom of the sealing end of the rubber sleeve pipe. The opening of the valve plug is sealed by the external cover. Accordingly, the magnetic element may not be eroded by water. 
     With the composition of the foregoing components, when the electromagnetic coil is controlled by the switch to generate a magnetic field mutually repulsed with a magnetic pole at an end of the valve rod and a magnetic force of the magnetic field is larger than a magnetic force generated by the valve rod sucked to the magnetic element, the valve rod comes off the attraction of the magnetic element to instantly move toward a reverse direction to allow the bottom of the valve rod leaning against the upper end surface of the rubber ring so that the valve plug completely seals the valve of the rubber ring. The sealing effect between the valve plug and the valve can be increased through the mutual magnetic attraction produced between the metal plate inside the rubber ring and the valve rod. In the meantime, after water flow enters into the lower containing chamber through the communicating water passage of the flexible loop blade of the rubber ring from the outlet end of the water inflow passage, water stopping state is shown. 
     Reversely, when the electromagnetic coil controlled by the switch generates a magnetic file mutually attracted with a magnetic pole at an end of the valve rod and a magnetic force of the magnetic field is larger than the magnetic force of the valve rod attracted to the metal plate, the valve rod comes off the metal plate to instantly move toward a reverse direction to allow an end of the valve rod attracting the magnetic element so that the valve plug of the valve rod completely comes off the valve of the rubber ring to allow the valve shows an opening state. Accordingly, water flow originally staying in the lower containing chamber is introduced into the inlet end of the water outflow passage via the valve of the rubber ring, thereby smoothly draining water away. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a decomposition drawing of a structure according to a preferred embodiment of the present invention; 
         FIG. 2  is an assembly drawing of a structure according to a preferred embodiment of the present invention; 
         FIG. 3  is a decomposition drawing of a rubber ring in the structure according to a preferred embodiment of the present invention; 
         FIG. 4  is a decomposition drawing of a valve rod in the structure according to a preferred embodiment of the present invention; 
         FIG. 5  is a three-dimensional drawing of a valve rod in the structure according to an another preferred embodiment of the present invention; 
         FIG. 6  is a movement drawing I of assembled cross-section form of the structure according to a preferred embodiment of the present invention; 
         FIG. 7  is a movement drawing II of assembled cross-section form of the structure according to a preferred embodiment of the present invention; 
         FIG. 8  is a movement drawing III of assembled cross-section form of the structure according to a preferred embodiment of the present invention; and 
         FIG. 9  is a movement drawing IV of assembled cross-section form of the structure according to a preferred embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Other features and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings. 
     Referring  FIG. 1  to  FIG. 7  for a magnetic control valve in accordance with a preferred embodiment of the present invention is depicted. The magnetic control valve comprises a connection pipe  40 . The connection pipe  40  has a water inflow passage  41  and a water outflow passage  42 , a circular seat  43  disposed to an engaging place between an outlet end  411  of the water inflow passage  41  and an inlet end  421  of the water outflow passage  42 , wherein the circular seat has an outward opening. A bottom of the circular seat  43  has an external baffle ring  431  formed at the outlet end  411  of the water inflow passage  41 , and an inner concave slot  432  is disposed to an upper end surface of the external baffle ring  431 . An inner baffle ring  433  is formed with respect to the inlet end  421  of the water outflow passage  42 , and the external baffle ring  431  and the inner baffle ring  433  are disposed to the same axle core. 
     A rubber ring  50 , as shown in  FIG. 3 , is combined with a metal plate  501 , wherein the metal plate  501  is encapsulated inside the rubber ring  50 , and the metal plate  501  is made of a metal material capable of being sucked by magnetic force. The metal plate  501  has a central hole  502 , and a plurality of through holes  503  is distributed to a periphery of the central hole  502 . The rubber ring  50  has a valve  51  encapsulated in the central hole  511  of the metal plate  501 , and glue body of the rubber ring  50  fill with the inside of each through hole  503  of the metal plate  501  to cascade the bodies covering the metal plate  501  so that the metal plate  501  is firmly combined with the rubber ring  50 . A flexible loop blade  52  is connected to an exterior of the rubber ring  50 , and an external ring  53  is connected to a periphery of the flexible loop blade  52 . A periphery of a bottom of the rubber ring  50  can completely seal the inlet end  421  of the water outflow passage  41 , and a bottom of the external ring  53  can seal the outlet end  411  of the water inflow passage  41 , and a convex ring  531  is downwardly extended from an external edge at the bottom of the external ring  53 . The convex ring  531  can closely fit the inner concave slot  432  of the circular seat  43 . In addition, more than one communicating water passages  521  are disposed to a region of the flexible loop blade  52 . 
     A magnetic control switch  600  comprises a pipe seat  60 , an upper cover  70 , a magnetic sucking element  80  and a valve rod  90 . The pipe seat  60  has a partition  61  to divide the pipe seat into an independently upper pipe body space  62  having upward opening and an independently lower pipe body space  63  having downward opening. The pipe seat  60  has a lower containing chamber  64  jointed with a bottom of the lower pipe body space  63 . An external frame  65  is downwardly extended from the external periphery of the lower containing chamber  64 . A bottom of the external frame  65  can closely lean against an upper end surface of the external ring  53  of the rubber ring  50 , and an external portion of the external frame  65  can closely combine with the inside of the circular seat  43  of the connection pipe  40 . In the embodiment, the manner for connecting the external frame  65  and the circular seat  43  adopts high frequency pressing or can be replaced with other conventionally equivalent techniques. 
     Moreover, the external portion of the pipe seat  60  is wound by an electromagnetic coil  66 . The encapsulation scope of the electromagnetic coil  66  covers an upper section region of the lower pipe body space  63  and a whole region of the upper pipe body space  62 , and the electromagnetic coil  66  is connected to a magnetic pole switch (not shown in the figure). The inner region of the electromagnetic coil  66  can be controlled by the magnetic pole switch to generate a positive pole magnetic field and a negative pole magnetic field. 
     The upper cover  70  can seal an upper opening end of the upper pipe body space  62 . In the embodiment, the connection between the upper cover  70  and the opening end of the upper pipe body space  62  adopts high frequency pressing or can be completed by using gluing or other manners capable of closely connecting them. 
     The magnetic sucking element  80  is contained in the upper pipe body space  62  to form a non-moving state. The magnetic sucking element  80  is made of a material capable of being sucked by a magnetic element. 
     The valve rod  90  is fit inside the lower pipe body space  63  and can be properly moved and regulated. A end of the valve rod  90  has a valve plug  91  that can be regulated and moved to completely seal the valve  51  of the rubber ring  50 . As shown in  FIG. 5 , the valve rod  90  in the embodiment can be made of a magnetic material capable of producing permanent magnetic force. Alternatively, as shown in  FIG. 4 , the valve rod  90 , in another preferred embodiment, comprises a magnetic element  92  capable of producing permanent magnetic force and a rubber sleeve pipe  93  and a sealing cap  94  for encapsulating the magnetic element  92 . In the detail depiction, the structure shown in  FIG. 4  is taken as an embodiment. The valve plug  91  of the valve rod  90  is disposed at the external bottom of the sealing end of the rubber sleeve pipe  93 . The opening end of the rubber sleeve pipe  93  is closed by the sealing cap  94 . Accordingly, the magnetic element  92  may not be corroded by water. 
     With the composition of the foregoing components, as shown in  FIG. 6 , when the electromagnetic coil  66  controlled by the magnetic pole switch generates a magnetic field that is mutually repulsed with a magnetic pole of an end of the valve rod  90  and when the magnetic force of the magnetic field is larger than the magnetic force generated by the valve rod  90  sucked to the magnetic sucking element  80 , the valve rod  90  comes off the sucking of the magnetic sucking element  80  to instantly move toward a reverse direction to allow the bottom of the valve rod  90  leaning against the upper end of the rubber ring  50  so that the valve plug  91  at the bottom of the valve rod  90  completely seals the valve  51  of the rubber ring  50 . The sealing effect between the valve plug  91  and the valve  51  can be increased through the mutual magnetic attraction produced by the magnetic force between the metal plate  501  assembled to the rubber ring  50  and the valve rod  90 , thereby assuring the sealing effect. 
     It should be noted that after water flow enters into the lower containing chamber  64  through a communicating water passage  521  of the flexible loop blade  52  of the rubber ring  50  from the outlet end  411  of the water inflow passage  41  of the connection pipe  40 , the rubber ring  50  can be pushed by water pressure to allow the bottom of the rubber ring  50  to tightly seal the inlet end  421  of the water outflow passage  42 . 
     As shown in  FIG. 7 , when the electromagnetic coil  66  can be controlled by the magnetic pole switch to generate a magnetic field mutually attracted with a magnetic pole at an end of the valve rod  90  and when the magnetic force of the magnetic field is larger than the magnetic force generated by the valve rod  90  sucked to the metal plate  501 , the valve rod  90  comes off the mutual magnetic attraction generated with the metal plate  501  to instantly move toward a reverse direction so that an end of the valve rod  90  is sucked to the magnetic sucking element  80 . The valve plug  91  of the valve rod  90  completely comes off the valve  51  of the rubber ring  50  to allow the valve  51  shows an opening state. Accordingly, water flow originally staying inside the lower containing chamber  64  is continuously introduced to the inlet end  421  of the water outflow passage  42  through the valve  51  of the rubber ring  50  so as to smoothly drain away. 
     As shown in  FIG. 8 , after the valve  51  of the rubber ring  50  shows the opening state, water flow introduced by the outlet end  411  of the water inflow passage  41 , on the one hand, flows into the water outflow passage  42  via the valve  51  from the lower containing chamber  64 , and on the other hand water flow may be influenced by the difference of dozen of times where a bore diameter of the communicating water passage  521  is smaller than a bore diameter of the outlet end  411 . Water flow may push the rubber ring  50  due to stronger water flow force at the outlet end  411  to expose intervals at the bottom of the rubber ring  50  and the inner baffle ring  433  so that water flow is massively introduced to the inlet end  421  of the water outflow passage  42  via the foregoing intervals. 
     As shown in  FIG. 9 , when the electromagnetic coil  66  is controlled by the magnetic pole switch to generate a magnetic field mutually repulsed with a magnetic pole at an end of the valve rod  90  and when the magnetic force of the magnetic field is larger than the magnetic force generated by the valve rod  90  sucked to the magnetic sucking element  80 , the valve rod  90  comes off the sucking of the magnetic sucking element  80  to instantly move toward a reverse direction. On the one hand, the bottom of the valve rod  90  leans against the upper end surface of the rubber ring  50 , and the metal plate  501  can be closely attracted by the magnetic force generated from the valve rod  90  to allow the valve plug  91  to tightly seal the valve  51  of the rubber ring  50 . On the other hand the rubber ring  50  synchronously and downwardly moves through the pushing effect of the valve rod  90  together with the valve rod  90  so that the bottom of the rubber ring  50  is mutually attached to the inner baffle ring  433  to form the sealing state, thereby returning to the state as shown in  FIG. 6 . 
     Although the features and advantages of the embodiments according to the preferred invention are disclosed, it is not limited to the embodiments described above, but encompasses any and all modifications and changes within the spirit and scope of the following claims.