referring to fig1 and fig2 , it shows a three - dimensional perspective view and a top view of a first embodiment of the present invention . as shown in the drawings , a toilet seat is provided above a toilet body 10 and comprises a seat plate 20 , a toilet lid 30 , a toilet lid open - close unit 40 , a seat plate cleaning unit 50 , a control unit 60 and a flushing unit 70 . the toilet body 10 is provided with a bowl 11 and a water tank 12 which supplies water to the bowl 11 . the seat plate 20 is pivoted at an upper rim of the bowl 11 , and the toilet lid 30 is pivoted at the upper rim of the bowl 11 to completely cover the seat plate 20 when covering . the toilet lid open - close unit 40 is connected to the toilet lid 30 to control an open - close state of the toilet lid 30 . the toilet open - close unit 40 includes a hollow pivot 41 which is connected to the toilet lid 30 , at least one set of first motor gear assembly 42 which is connected to the hollow pivot 41 to drive the toilet lid 30 pivoting . the seat plate cleaning unit 50 is provided on the toilet lid 30 and is provided with a water feed end 51 ( co - constructed with the aforementioned hollow pivot 41 ) to fetch a water source , an air port end 52 ( co - constructed with the aforementioned hollow pivot 41 ) to connect a pneumatic device , and a cleaning head 53 which is connected to the aforementioned water feed end 51 and the air port end 52 to encircle along an outline of the seat plate 20 . the cleaning head 53 is provided with at least one linear opening 531 corresponding to the seat plate 20 and two linear openings 531 are provided in the drawings for description . the control unit 60 is provided close to the bowl 11 and is provided with at least one infrared inductive switch . a solenoid valve which controls water supply of the water feed end 51 and the pneumatic device which feeds and discharges air at the air port end 52 are connected at the control unit 60 . when the infrared inductive switch detects that a user is approaching , the control unit 60 will activate the toilet lid open - close unit 40 to open the toilet lid 30 automatically ; whereas , when the infrared inductive switch detects that the user has left , the control unit 60 will activate the toilet lid open - close unit 40 to close the toilet lid 30 and activate the seat plate cleaning unit 50 after the toilet lid 30 has been closed , allowing the cleaning head 53 to encircle and spray the seat plate 20 , followed by enabling the cleaning head 53 to encircle and air dry the seat plate 20 ( blowing or sucking air ), thereby achieving the object of automatically cleaning the seat plate 20 . in addition , a spout operation of the water tank 12 is controlled by a solenoid valve which is electrically connected with the control unit 60 , allowing the water tank 12 to spout water automatically when the infrared inductive switch detects that the user has left . the flushing unit 70 is provided at the upper rim of the bowl 11 to clean skin between buttocks of the user . an operating interface of the flushing unit 70 is integrated on the aforementioned control unit 60 , facilitating the user to operate and control . referring to fig3 to 5 , it shows a schematic view of a position where a seat plate cleaning unit is provided , a three - dimensional perspective view of a seat plate cleaning unit and a top view of a seat plate cleaning unit , according to a first embodiment of the present invention . the detail structure of the seat plate cleaning unit 50 disclosed in the drawings further includes a guiding rail 54 which surrounds at a lower rim of the toilet lid 30 , a concealed conduit 55 which is buried in the toilet lid 30 to connect the water feed end 51 and the air port end 52 , a rotation connector 56 which is connected with the concealed conduit 55 , an open conduit 57 which is connected at the rotation connector 56 and is exposed at the lower rim of the toilet lid 30 , an extension tube 571 which is inserted at an end of the open conduit 57 to mount the cleaning head 53 at a tail end , a spring 572 which is sheathed at an exterior of the extension tube 571 , a pulley unit 58 which is provided at a tail end of the cleaning head 53 to fit with the guiding rail 54 , and a second motor gear assembly 59 which is buried in the toilet lid 30 to drive the open conduit 57 rotating . the second motor gear assembly 59 is electrically connected at the aforementioned control unit 60 and is provided with at least a motor 591 , a worm shaft 592 and a transmission gear 593 ; whereas the pulley unit 58 disclosed in the present embodiment is constituted by plural pulleys . referring to fig6 , it shows a local cutaway view of a first embodiment of the present invention . when the toilet lid 30 is covered at the upper rim of the bowl 11 , the entire upper rim of the bowl 11 will be shielded and the entire seat plate 20 will be covered completely . therefore , when water is sprayed , air is blown or sucked at the linear opening 531 at a bottom end of the cleaning head 53 , cleaning water can be prevented from leaking out of the toilet . referring to fig7 , it shows a schematic view of an encircling operation of a seat plate cleaning unit , according to a first embodiment of the present invention . when the second motor gear assembly 59 drives the open conduit 57 rotating , an extension length of the extension tube 571 can be changed through guiding of the guiding rail 54 and an extension function of the spring 572 , following a change of span of the guiding rail 54 , allowing the cleaning head 53 to encircle along the seat plate 20 to carry out the cleaning operation . referring to fig8 , it shows a schematic view of a bowl which is provided with an odor discharge orifice , according to a first embodiment of the present invention . as it is inevitable to result in unbearable odor when using the toilet , upon implementing the present invention , a rear side of an inner rim of the bowl 11 can be provided with an odor discharge orifice 13 , a rear end of which can be connected externally to a ventilation system of a building or an open outdoor space wherein a natural chimney effect or a means of installing a powerless windmill can be employed to improve the discharge effect . referring to fig9 and fig1 , it shows a schematic view of a seat plate cleaning unit and a cutaway view of a cleaning head , according to a second embodiment of the present invention . the second embodiment provides a technological means by which water supply and sucking dry can be conducted simultaneously . the difference of the seat plate cleaning unit 50 disclosed by the present embodiment from that disclosed by the first embodiment lies in that an interior of the concealed conduit 55 is transfixed with an inner concealed conduit 55 a , wherein the inner concealed conduit 55 a is connected with the water feed end 51 and a holding space formed between peripheries of the inner concealed conduit 55 a and an inner wall of the concealed conduit 55 is connected with the air port end 52 . the open conduit 57 and the extension tube 571 are connected with the aforementioned inner concealed conduit 55 a , allowing cleaning water to flow through . exterior sides of the open conduit 57 , the extension tube 571 and the spring 572 are sheathed with an extensible outer open conduit 57 a and a holding space formed between the outer open conduit 57 a and the open conduit 57 , the extension tube 571 and the spring 572 is connected with the concealed conduit 55 , allowing high pressure gas to flow through . as shown in fig1 , the cleaning head 53 of the second embodiment of the present invention includes a water injection chamber 53 a which is connected with the extension tube 571 and two air suction chambers 53 b which are provided respectively at two sides of the water injection chamber 53 a to connect the outer open conduit 57 a . a bottom end of the water injection chamber 53 a is provided with at least one linear water injection nozzle 531 a toward the seat plate 20 ( two nozzles in the drawing ), and there are at least one linear air suction port 531 b respectively at bottom ends of air suction chambers 53 b at two sides , toward the seat plate 20 . an aperture of the linear water injection nozzle 531 a is smaller than that of the linear air suction port 531 b and a proper spray distance is kept between the linear water injection nozzle 531 a and the seat plate 20 ; whereas , the linear air suction port 531 b keeps at a closer distance to the seat plate 20 . when performing the cleaning operation , the linear water injection nozzle 531 a will inject water to the seat plate 20 for cleaning . at this time , the linear air suction ports 531 b at two sides can suck air simultaneously , thereby sucking dry the cleaning water at a same time . thus , the seat plate 20 and the peripheries of the seat plate 20 can manifest a dry configuration after cleaning , and the cleaning water will not be easily sprayed onto the seat plate 20 . referring to fig1 to 13 , it shows a schematic view of a cleaning head , a schematic view of a cleaning head which is not operating and a schematic view of an operation of a cleaning head , according to a third embodiment of the present invention . the cleaning head of the present embodiment is an altered implementation derived from the second embodiment . a rear end of the cleaning head 53 is extended with a shelter 532 to shield the spring 572 and a side end of the cleaning head 53 is pivoted with a second cleaning head 533 which can swing and pivot relative to the cleaning head 53 . in addition , the cleaning head 53 is provided with a bypass assembly 534 which is connected between the water injection chamber 53 a and the second cleaning head 533 , allowing the water injection chamber 53 a to supply water to the second cleaning head 533 . the second cleaning head 533 is provided with a second linear water injection nozzle 533 a , and the pulley unit 58 described in the present embodiment is formed by a single pulley . at a same time when the cleaning head 53 swings downward to a horizontal state to perform the cleaning operation , the second cleaning head 533 will swing downward naturally to manifest a suspension state . at this time , the cleaning water that is injected from the second linear water injection nozzle 533 a can result in a wider cleaning angle and wash simultaneously the peripheries of the inner side of the bowl 11 , along with the displacement of the cleaning head 53 . therefore , the locations of the inner peripheries of the bowl 11 , close to an upper side where dirt is easily accumulated , can be flushed clean . on the other hand , the cleaning head 53 is provided with a movement stop button 535 which is used to restrict a down - swing angle of the second cleaning head 533 . the movement stop button 535 penetrates the cleaning head 53 and enters into the water injection chamber 53 a . when a water flow is filled into the water injection chamber 53 a , the movement stop button 533 can be pushed by a hydraulic pressure to be protruded , thereby restricting the down - swing angle of the second cleaning head 533 . accordingly , when the user approaches the toilet , the toilet lid 30 will be opened automatically and the odor generated when the toilet is being used will be removed immediately from the odor discharge orifice 13 . on the other hand , when the user leaves , the toilet lid 30 will be closed automatically and the seat plate 20 will be washed clean and air dried immediately by the seat plate cleaning unit 50 . as a result , the comfortableness in using the toilet is improved significantly , allowing the toilet to be used cleanlier and more hygienically . it is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims .
the present invention discloses an automatic toilet cleaning device . a toilet seat is provided above a bowl and includes a toilet lid and a seat plate . by a means of infrared induction , the toilet lid can be opened automatically when a user is approaching and can be closed automatically after using the toilet . furthermore , a seat plate cleaning unit provided on the toilet lid can be used to automatically clean the seat plate and an inner rim of the toilet . therefore , in addition to preventing the user from manually touching the toilet , the present invention can also keep the seat plate and the toilet at the cleanest state at any time .