You are an expert at summarizing long articles. Proceed to summarize the following text:

You are an expert at summarizing long articles. Proceed to summarize the following text: 
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a pull-out spout of a pull-out faucet, more particularly, to a two-path water output device. 
         [0003]    2. Description of the Related Art 
         [0004]    Currently, pull-out faucets are used only for tap water. If both tap water and filtered water are needed at the same time, a complex switch device is required for switching desired water output. Tap water or filtered water is normally switched by the switch device to close or open the respective water inlet pipes, but not though the control of the pull-out spout of the pull-out faucet. 
       SUMMARY OF THE INVENTION 
       [0005]    In view on the problems and drawbacks of the prior art, the objective of the present invention is to provides a two-path water output device featuring a simple structure, novel design and easy control and implementing two-path water output. 
         [0006]    To achieve the foregoing objective, the two-path water output device includes a valve and a shell. 
         [0007]    The valve has a first waterway, a second waterway and a control valve core. 
         [0008]    The first waterway is defined inside the valve. 
         [0009]    The second waterway is defined inside the valve. 
         [0010]    The control valve core is mounted inside the valve to control the second waterway to open or close. 
         [0011]    The shell is mounted around the valve. 
         [0012]    Preferably, the valve has an inlet end, an outlet end, a first inlet channel, a second inlet channel, a first outlet channel, a second outlet channel, a trough, a first waterway, a second waterway and a control valve core. 
         [0013]    The first inlet channel and the second inlet channel are axially formed in the inlet end. 
         [0014]    The first outlet channel and the second outlet channel are axially formed in the outlet end. 
         [0015]    The trough is radially formed inside the valve, and communicates with the first inlet channel, the first outlet channel, the second inlet channel and the second outlet channel. 
         [0016]    The first waterway is sequentially formed by the first inlet channel, the trough and the first outlet channel and is adapted to connect to a water converter. 
         [0017]    The second waterway is sequentially formed by the second inlet channel, the trough and the second outlet channel. 
         [0018]    The control valve core is mounted inside the trough to control the second waterway to open or close. 
         [0019]    Preferably, the valve has an inlet end, an outlet end, a first inlet channel, a second inlet channel, a first outlet channel, a second outlet channel, a first trough, a second trough, a first waterway, a second waterway and a control valve core. 
         [0020]    The first inlet channel and the second inlet channel are axially formed in the inlet end. 
         [0021]    The first outlet channel and the second outlet channel are axially formed in the outlet end. 
         [0022]    The first trough is radially formed inside the valve and communicates with the first inlet channel and the first outlet channel. 
         [0023]    The second trough is radially formed inside the valve and communicates with the second inlet channel and the second outlet channel. 
         [0024]    The first waterway is sequentially formed by the first inlet channel, the first trough and the first outlet channel, and is adapted to connect to a water converter. 
         [0025]    The second waterway is sequentially formed by the second inlet channel, the second trough and the second outlet channel. 
         [0026]    The control valve core is mounted inside the trough to control the second waterway to open or close. 
         [0027]    Preferably, the first outlet channel includes a first inside outlet channel and a first outside outlet channel that are concentric to each other, and a switch valve core is mounted inside the first trough and selectively controls one of the first inside outlet channel and the first outside outlet channel to communicate with the first inlet channel. 
         [0028]    Preferably, the second inlet channel is formed inside the first inlet channel. 
         [0029]    Preferably, tap water flows through the first waterway, and filtered water flows through the second waterway. 
         [0030]    According to the foregoing description, the present invention have the following advantages: 
         [0031]    The two-path water output device features a simple structure, a novel design and easy convenience to control two different paths of water output. The first waterway is constantly connected to a water converter, while the second waterway is controlled to be open or closed by a control valve core. When the second waterway is closed, the water pressure switches the water converter connected to the inlet end of the valve to the first waterway to output water. When the second waterway is open, the released pressure switches to the first waterway to output water. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0032]    The detailed description of the drawings particularly refers to the accompanying figures in which: 
           [0033]      FIG. 1  is a cross-sectional view of a first embodiment of a two-path water output device in accordance with the present invention with a first outlet waterway illustrated; 
           [0034]      FIG. 2  is a cross-sectional view of the two-path water output device in  FIG. 1  with a second outlet waterway illustrated; 
           [0035]      FIG. 3  is a perspective view of a valve of the two-path water output device in  FIG. 1 ; 
           [0036]      FIG. 4  is another perspective view of the valve in  FIG. 3 ; 
           [0037]      FIG. 5  is a cross-sectional view of a second embodiment of a two-path water output device in accordance with the present invention; and 
           [0038]      FIG. 6  is a cross-sectional view of a third embodiment of a two-path water output device in accordance with the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0039]    The purpose, construction, features, functions and advantages of the present invention can be appreciated and understood more thoroughly through the following detailed description with reference to the attached drawings. 
         [0040]    With reference to  FIG. 1-4 , a first embodiment of a two-path water output device in accordance with the present invention includes a valve  1 , a shell  2 , a first waterway A, and a second waterway B. 
         [0041]    The valve  1  is mounted around by the shell  2 , has a first inlet channel  31 , a second inlet channel  32 , a first trough  11 , a second trough  12 , a first outlet channel  4 , a second outlet channel  5 , an outlet conduit  7 , a water outlet panel  13 , a switch valve core  61 , a first valve seat  81 , a first spring  91 , a control valve core  62 , a second valve seat  82  and a second spring  92 . The first inlet channel  31  and the second inlet channel  32  are juxtaposedly and axially formed in an inlet end of the valve  1  or the second inlet channel  32  is formed inside the first inlet channel  31 . The first trough  11  and the second trough  12  are juxtaposedly and radially formed inside the valve  1 . 
         [0042]    The first outlet channel  4  and the second outlet channel  5  are axially and juxtaposedly formed inside an outlet end of the valve  1 . 
         [0043]    The first outlet channel  4  includes a first inside outlet channel  41  and a first outside outlet channel  42 . The first trough  11  communicates with the first inlet channel  31  and the first outlet channel  4 . The second trough  12  communicates with the second inlet channel  32  and the second outlet channel  5 . The outlet conduit  7  is mounted around the outlet end of the valve  1  and an O-type collar seal is held between the outlet end of the valve  1  and the outlet conduit  7 . The first inside outlet channel  41  and the first outlet channel  42  are concentrically mounted inside the outlet conduit  7 . The first inside outlet channel  41  has a water softener  10  mounted therein to soften the water in the first inside outlet channel  41 . 
         [0044]    The water outlet panel  13  is mounted on an inner edge portion of the first outside outlet channel  42 , and has multiple water holes formed through the water outlet panel  13  to spray water. 
         [0045]    The switch valve core  61  is mounted inside the first trough  11 , and selectively controls one of the first inside outlet channel  41  and the first outside outlet channel  42  to communicate with the first inlet channel  31 . The first valve seat  81  is mounted in a top inner portion of the first trough  11  to pair with the switch valve core  61 . The first spring  91  is mounted in a bottom inner portion to restore the switch valve core  61  back to an original place quickly. 
         [0046]    The control valve core  62  is mounted in a top inner portion of the second trough  12 . The second spring  92  is mounted in a bottom end of the second trough  12  to restore the control valve core  62  back to an original place quickly. 
         [0047]    To ensure a hermetic seal, O-type collar seals are mounted between an inner surface of the valve  1  and each of the first valve seat  81  and second valve seat  82 , between the switch valve core  61  each of the first valve seat  81  and an inner surface of the valve  1 , and between the control valve core  62  and each of an inner surface of the valve  1  and the second valve seat  82 . 
         [0048]    A lever  14  is connected between a top portion of the switch valve core  61  and a top portion of the control valve core  62 . A central portion of the lever  14  is pivotally mounted on an inner wall of the valve  1 . A first end of the lever  14  is inserted into a switching slot on the top portion of the switch valve core  61 . A height of the switching slot of the switch valve core  61  is greater than a width of the first end of the lever  14 . A second end of the lever  14  is securely mounted in a reduced neck in the top portion of the control valve core  62 . A start button  15  is mounted on a top surface of the control valve core  62  and protrudes beyond the shell  2 . A lower side of a first end of the switch button  16  is hinged with the top portion of the switch valve core  61 . A lower side of a central portion of the switch button  16  is hinged with the inner wall of the valve  1 . A second end of the switch button  16  is suspended to be pivotable with respect to the centrally hinged point. 
         [0049]    To ease connection between the two-path water output device and a water converter, the valve  1  has an external thread  17  formed on the inlet end thereof 
         [0050]    With reference to  FIG. 1-2 , the first waterway A is sequentially formed by the first inlet channel  31  through the first trough  11  and the first outlet channel  4 , and tap water flows through the first waterway A. The second waterway B is sequentially formed by the second inlet channel  32  through the second trough  12  and the second outlet channel  5 , and filtered water flows through the second waterway B. The first waterway A is controlled by an external valve core and the second waterway B is controlled by the control valve core  62 . Alternatively, the first waterway A and the second waterway B can be respectively controlled by the control valve core  62  and the external valve core. What flow through the first waterway A and the second waterway B include, but are not limited to, tap water and filtered water respectively. 
         [0051]    In the present embodiment, operation of the two-path water output device is as follows. When the start button  15  is pressed, the second waterway B forms a passage for filtered water to flow in the second waterway B. At same time, tap water is closed through the water converter connected to the inlet end of the valve  1 . When the first end of the switch button  16  is pressed, the start button  15  is popped up by the lever  14  and the second waterway B is blocked such that no filtered water can flow in the second waterway B. Meanwhile, tap water is opened through the water converter connected with the valve  1  to flow in the first waterway A. Pushing the switch button  16  again can change to sprinkle tap water. 
         [0052]    With reference to  FIG. 5 , a second embodiment of a two-path water output device in accordance with the present invention is shown. The first inlet channel  31  and the second inlet channel  32  are axially formed in the inlet end of the valve  1 , the first outlet channel  4  and the second outlet channel  5  are axially formed in the outlet end of the valve  1 , a third trough  18  is radially formed inside the valve  1 . 
         [0053]    The first waterway A is sequentially formed by the first inlet channel  31  through the third trough  18  and the first outlet channel  4 . The second waterway B is sequentially formed by the second inlet channel  32  through the third trough  18  and the second outlet channel  5  The control valve core  62  is mounted inside the third trough  18  to control the second waterway B to open or close, and the first waterway A is kept in connection with and is controlled by the water converter to open or close. As being similar to the foregoing embodiment, operation of the present embodiment is not repeated here. 
         [0054]    With reference to  FIG. 6 , a third embodiment of a two-path water output device in accordance with the present invention is shown. The first inlet channel  31  and the second inlet channel  32  are axially formed in the inlet end of the valve  1 , the first outlet channel  4  and the second outlet channel  5  are axially formed in the outlet end of the valve  1 , a third trough  18  is radially formed inside the valve  1 . 
         [0055]    The first waterway A is sequentially formed by the first inlet channel  31  through the third trough  18  and the first outlet channel  4 . The second waterway B is sequentially formed by the second inlet channel  32  through the third trough  18  and the second outlet channel  5 . The control valve core  62  is mount inside the third trough  18  to control the second waterway to open or close, and the first waterway A is kept in connection with and is controlled by the water converter to open or close. As being similar to the foregoing embodiment, operation of the present embodiment is not repeated here.

Summary:
A two-path water output device includes a valve, and is mounted around by a shell. The valve has a first waterway and a second waterway. The first waterway is constantly connected to a water converter, while the second waterway is controlled to be open or closed by a control valve core. Such two-path structure is simple, novel and easily controllable for two types of water output like tap water and filtered water. When the second waterway is closed, the water pressure switches a water converter connected to the inlet end of the valve to the first waterway to output water. When the second waterway is open, the released pressure switches to the first waterway to output water.