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FIELD OF THE INVENTION 
       [0001]    The present invention relates to a bathroom accessory, especially to a quick siphon toilet. 
       BACKGROUND OF THE INVENTION 
       [0002]    Spray siphon type toilets accounts for more percentages in the existing market. A flushing type toilet, as figured in  FIG. 1 , the toilet body  1 ′ has a flush waterway  11 ′ and a spray waterway  12 ′, the bottom of the toilet body  1 ′ is disposed with a siphon washing-out pipe  13 ′. The toilet body  1 ′ is usually assembled with a flush water tank  2 ′, the water tank  2 ′ is disposed with an inlet mechanism and a drain valve  21 ′, the inlet mechanism is connected to an inlet pipe, the drain valve  21 ′ is connected to the spray waterway  11 ′ and the flush waterway  12 ′ respectively. Water divides to two part from the drain valve  21 ′ of the water tank  2 ′, one part of the water flows out of the flush waterway  12 ′ to wash the washing surface of the toilet body  1 ′, the other part of the watery flows out of the spray waterway  11 ′ to wash the bottom portion of the toilet body  1 ′ and it also assists the siphon washing-out pipe  12 ′ to form siphon. As the flushing hole of the flush waterway  12 ′ is connected to the air outside, after the flushing of the water to the toilet body  1 ′, under the work of the atmosphere, only the part of the bottom portion of the toilet body  1 ′ under the water seal surface has water, the pipe between the water seal surface and the drain valve  21 ′ is full of air. When the drain valve  21 ′ starts draining, water firstly fills the pipe, then flows out of the flushing hole of the flush waterway  12 ′. As the water of the pipe is not continuous in the initial of draining, the water flow rate of the spray waterway  11 ′ is lower than the condition that the pipe is full of water. The siphon pipe can not form siphon quickly in the initial of draining, resulting in a waste of water. 
       SUMMARY OF THE INVENTION 
       [0003]    The object of the present invention is to overcome the disadvantages of the existing known technology and provide a quick siphon toilet. 
         [0004]    The technical proposal of the present invention is that: 
         [0005]    A quick siphon toilet, comprising a toilet body and a water tank, the toilet body is disposed with a spray waterway to wash the bottom portion of the toilet body and a flush waterway to wash the wall of the toilet body, the bottom portion of the toilet body is disposed with a siphon washing-out pipe, the water tank is disposed with a drain valve, wherein the drain valve is disposed with a first drain outlet connected to the flush waterway and a second drain outlet connected to the spray waterway, the spray waterway is disconnected to the flush waterway. 
         [0006]    In another preferred embodiment, a check valve is disposed between the first drain outlet and the flush waterway, the check valve is disposed with a first state and a second state: the first state is a state that when the water tank drains, the check valve is open, so that water enters the flush waterway through the first drain outlet, at the same time, water of the water tank enters the spray waterway through the second drain outlet; the second state is a state that when the water tank does not drain, the check valve is closed, so that the spray waterway and the flush waterway are separated in sealing way. 
         [0007]    In another preferred embodiment, the water tank is further disposed with an overflow pipe, the drain valve is connected to the flush waterway through the first drain outlet and then the overflow pipe, a check valve is disposed between the first drain outlet and the overflow pipe, the check valve is disposed with a first state and a second state: the first state is a state that when the water tank drains, the check valve is open, so that water enters the flush waterway through the first drain outlet and the overflow pipe, at the same time, water of the water tank enters the spray waterway through the second drain outlet; the second state is a state that when the water tank does not drain, the check valve is closed, so that the spray waterway is separated from the flush waterway and the overflow pipe in sealing way. 
         [0008]    In another preferred embodiment, a check valve is disposed in the flush waterway, the check valve is disposed with a first state and a second state: the first state is a state that when the water tank drains, the check valve is open, so that water enters the flush waterway through the first drain outlet, at the same time, water of the water tank enters the spray waterway through the second drain outlet; the second state is a state that when the water tank does not drain, the check valve is closed, so that the spray waterway is separated from the flush waterway in sealing way. 
         [0009]    The present invention has advantages as follows: 
         [0010]    The quick siphon toilet has the drain valve with a drain inlet, a first drain outlet connected to the flush waterway and a second drain outlet connected to the spray waterway, the spray waterway is separated from the air outside, every time after the flushing, the toilet has pre-saved water for next time&#39;s flushing the bottom portion of the toilet body, when flushing starts at the next time, it does not need water of the water tank to fulfill the spray waterway again. In the present invention, siphon happens quickly, at the same time, the water diversion volume of the flushing hole at the protruding edge of the toilet is increased. In a condition of same water volume, the present invention has longer flushing time and better washing-out effect. And the present invention uses less water based on well flushing function, thus making it water-saving. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]      FIG. 1  illustrates a sectional diagram of a flush siphon type toilet of existing known technology. 
           [0012]      FIG. 2  illustrates a schematic and sectional diagram of a first embodiment of the present invention. 
           [0013]      FIG. 3  illustrates a schematic and sectional diagram of a second embodiment of the present invention. 
           [0014]      FIG. 4  illustrates a schematic and sectional diagram of a third embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
       [0015]    The present invention will be further described with the embodiments and the drawings. 
         [0016]    The first embodiment: 
         [0017]    As figured in  FIG. 2 , a quick siphon toilet comprises a toilet body  1  and a water tank  2 , the toilet body  1  is disposed with a spray waterway  11  to wash the bottom portion of the toilet body  1  and a flush waterway  12  to wash the periphery wall of the toilet body  1 , the bottom portion of the toilet body  1  is disposed with a siphon washing-out pipe  13 , the water tank  2  is disposed with a drain valve  21 , the drain valve  21  is disposed with a drain inlet  211 , a first drain outlet  212  connected to the flush waterway  12  and a second drain outlet  213  connected to the spray waterway  11 . A check valve  3  is disposed between the first drain outlet  212  and the flush waterway  12 , the check valve  3  has a first state and a second state: the first state is a state that when the water tank  2  drains, the check valve is open, so that water enters the flush waterway  12  through the first drain outlet  212 , at the same time, water of the water tank enters the spray waterway  11  through the second drain outlet; the second state is a state that when the water tank  2  does not drain, the check valve  3  is closed, so that the spray waterway  11  is separated from the flush waterway  12  in sealing way. 
         [0018]    When the drain valve  21  drains at the first time, water enters the spray waterway  11  through the second drain outlet  213  to wash the bottom portion of the toilet body  1 ; water enters the flush waterway  12  through the first drain outlet  212  to wash the periphery wall of the toilet body, the check valve  3  is open under the work of the water flowing. During flushing, water fulfills the spray waterway  11  and the flush waterway  12 . After the draining, as the check valve  3  between the first drain outlet  212  and the flush waterway  12  is closed under the work of the gravity and the negative pressure, air can not enter the second drain outlet  213  and the spray waterway  11 , the spray waterway  11  is fulfilled or nearly fulfilled. 
         [0019]    When the drain valve  21  drains at the second time, water enters the spray waterway  11  through the second drain outlet  213  to wash the bottom portion of the toilet body  1 ; water enters the flush waterway  12  through the first drain outlet  212  to wash the periphery wall of the toilet body  1 , as it does not need water to fulfill the spray waterway  11 , the toilet can wash the wash surface earlier and the siphon of the washing-out pipe  13  happens earlier for washing-out. After the draining, as the check valve  3  between the first drain outlet  212  and the flush waterway  12  is closed under the work of the gravity and the negative pressure, air can not enter the second drain outlet  211  and the spray waterway  11 , the spray waterway  11  is fulfilled or nearly fulfilled for the next time&#39;s operation. 
         [0020]    This embodiment has advantages that it can improve the cleaning and washing-out function of the toilet. In a condition of same functions, this embodiment uses less water, thus making it water-saving. 
         [0021]    The second embodiment: 
         [0022]    As figured in  FIG. 3 , a quick siphon toilet comprises a toilet body  1  and a water tank  2 , the toilet body  1  is disposed with a spray waterway  11  to wash the bottom portion of the toilet body  1  and a flush waterway  12  to wash the periphery wall of the toilet body  1 , the bottom portion of the toilet body  1  is disposed with a siphon washing-out pipe  13 , the water tank  2  is disposed with a drain valve  21 , the drain valve  21  is disposed with a drain inlet  211 , a first drain outlet  212  connected to the flush waterway  12  and a second drain outlet  213  connected to the spray waterway  11 . the water tank  2  is further disposed with an overflow pipe  22 , the drain valve is connected to the flush waterway  12  through the first drain outlet  212  and the overflow pipe  22 , a check valve  3  is disposed between the first drain outlet  212  and the overflow pipe  22 , the check valve  3  has a first state and a second state: the first state is a state that when the water tank  2  drains, the check valve is open, so that water enters the flush waterway  12  through the first drain outlet  212  and the overflow pipe  22 , at the same time, water of the water tank enters the spray waterway  11  through the second drain outlet  213 ; the second state is a state that when the water tank  2  does not drain, the check valve  3  is closed, so that the spray waterway  11  is separated from the flush waterway  12  and the overflow pipe  22  in sealing way. 
         [0023]    When the drain valve  21  drains at the first time, water enters the spray waterway  11  through the second drain outlet  213  to wash the bottom portion of the toilet body  1 ; water enters the flush waterway  12  through the first drain outlet  212  to wash the periphery wall of the toilet body, the check valve  3  is open under the work of the water flowing. During flushing, water fulfills the spray waterway  11  and the flush waterway  12 . After the draining, as the check valve  3  is closed under the work of the gravity and the negative pressure, air can not enter the second drain outlet  213  and the spray waterway  11 , the spray waterway  11  is fulfilled or nearly fulfilled. 
         [0024]    When the drain valve  21  drains at the second time, water enters the spray waterway  11  through the second drain outlet  213  to wash the bottom portion of the toilet body  1 ; water enters the flush waterway  12  through the first drain outlet  212  to wash the periphery wall of the toilet body  1 , as it does not need water to fulfill the spray waterway  11 , the toilet can wash the wash surface earlier and the siphon of the washing-out pipe  13  happens earlier for washing-out. After the draining, as the check valve  3  is closed under the work of the gravity and the negative pressure, air can not enter the spray waterway  11 , the spray waterway  11  is fulfilled or nearly fulfilled for the next time&#39;s operation. 
         [0025]    This embodiment has advantages that it can improve the cleaning and washing-out function of the toilet. In a condition of same functions, this embodiment uses less water, thus making it water-saving. 
         [0026]    The third embodiment: 
         [0027]    As figured in  FIG. 4 , a quick siphon toilet comprises a toilet body  1  and a water tank  2 , the toilet body  1  is disposed with a spray waterway  11  to wash the bottom portion of the toilet body  1  and a flush waterway  12  to wash the periphery wall of the toilet body  1 , the bottom portion of the toilet body  1  is disposed with a siphon washing-out pipe  13 , the water tank  2  is disposed with a drain valve  21 , the drain valve  21  is disposed with a drain inlet  211 , a first drain outlet  212  connected to the flush waterway  12  and a second drain outlet (not figured out) connected to the spray waterway  11 . A check valve  3  is disposed in the flush waterway  12 , the check valve  3  has a first state and a second state: the first state is a state that when the water tank  2  drains, the check valve is open, so that water enters the flush waterway  12  through the first drain outlet  212 , at the same time, water of the water tank enters the spray waterway  11  through the second drain outlet; the second state is a state that when the water tank  2  does not drain, the check valve  3  is closed, so that the spray waterway  11  is separated from the flush waterway  12  in sealing way. 
         [0028]    When the drain valve  21  drains at the first time, water enters the spray waterway  11  through the second drain outlet to wash the bottom portion of the toilet body  1 ; water enters the flush waterway  12  through the first drain outlet  212  to wash the periphery wall of the toilet body, the check valve  3  in the flush waterway  12  is open under the work of the water flowing. During flushing, water fulfills the spray waterway  11  and the flush waterway  12 . After the draining, as the check valve  3  is closed under the work of the gravity and the negative pressure, air can not enter the second drain outlet and the spray waterway  11 , the spray waterway  11  is fulfilled or nearly fulfilled. 
         [0029]    When the drain valve  21  drains at the second time, water enters the spray waterway  11  through the second drain outlet to wash the bottom portion of the toilet body  1 ; water enters the flush waterway  12  through the first drain outlet  212  to wash the periphery wall of the toilet body  1 , as it does not need water to fulfill the spray waterway  11 , the toilet can wash the wash surface earlier and the siphon of the washing-out pipe  13  happens earlier for washing-out. After the draining, as the check valve  3  in the flush waterway  12  is closed under the work of the gravity and the negative pressure, air can not enter the spray waterway  11 , the spray waterway  11  is fulfilled or nearly fulfilled for the next time&#39;s operation. 
         [0030]    This embodiment has advantages that it can improve the cleaning and washing-out function of the toilet. In a condition of same functions, this embodiment uses less water, thus making it water-saving. 
         [0031]    Although the present invention has been described with reference to the preferred embodiments thereof for carrying out the patent for invention, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the patent for invention which is intended to be defined by the appended claims.

Summary:
The present invention provides a quick siphon toilet. The quick siphon toilet comprises a toilet body and a water tank, the toilet body is disposed with a spray waterway to wash the bottom portion of the toilet body and a flush waterway to wash the periphery wall of the toilet body, the bottom portion of the toilet body is disposed with a siphon washing-out pipe, the water tank is disposed with a drain valve, wherein the drain valve is disposed with a first drain outlet connected to the flush waterway and a second drain outlet connected to the spray waterway, the spray waterway is disconnected to the flush waterway. In a condition of same water volume, the present invention has longer siphon time and flushing time and better washing-out effect. And the present invention uses less water based on well flushing function, thus making it water-saving.