Urinal

Abstract

Provided in embodiments of the present disclosure is a urinal, comprising a urinal body. The urinal body comprises: a nozzle and a water inlet; and a flushing surface that comprises a front surface which is opposite to a person when in use. The urinal body is characterized in that the front surface of the flushing surface comprises a curved surface of steepest descent, the curved surface of steepest descent using the shape of a curve of steepest descent presented by a contour obtained by cross-cutting via a horizontal plane. The urinal in embodiments of the present disclosure has a large flushing area and a good anti-overflow effect, can be used under a working condition with relatively low water pressure, and consumes a small amount of flushing water a time, thereby saving water resources.

1 . A urinal, comprising a urinal body, the urinal body comprising:
 a nozzle and a water inlet;   a flushing surface comprising an opposite surface facing a person when in use; wherein   the opposite surface of the flushing surface comprises a Brachistochrone Curve surface, and the Brachistochrone Curve surface has a Brachistochrone Curve shape outline obtained by transecting the Brachistochrone Curve surface with a horizontal plane.   
     
     
         2 . The urinal according to  claim 1 , wherein a line connecting the water inlet and the nozzle on the flushing surface constitutes a centerline, and a point on the centerline is a point with the smallest curvature on the Brachistochrone Curve surface. 
     
     
         3 . The urinal according to  claim 2 , wherein the Brachistochrone Curve surface is symmetric about the centerline. 
     
     
         4 . The urinal according to  claim 2 , wherein the Brachistochrone Curve starts from a point on the centerline and extends toward two sides thereof in a horizontal direction. 
     
     
         5 . The urinal according to  claim 4 , wherein the flushing surface further includes oblique side surfaces located on two sides of the opposite surface, being inclined planes, and having a circular arc transition with the Brachistochrone Curve surface. 
     
     
         6 . The urinal according to  claim 5 , wherein the flushing surface further includes a water sealing surface located between the two oblique side surfaces, and having an outline including a Brachistochrone Curve shape and a circular arc shape and obtained by transecting the water sealing surface with a horizontal plane. 
     
     
         7 . The urinal according to  claim 6 , wherein the Brachistochrone Curve surface, the oblique side surfaces and the water sealing surface form a cone with an inclined opening, and the lowest point of the inclined opening is located on the water sealing surface. 
     
     
         8 . The urinal according to  claim 6 , wherein an intersection of the Brachistochrone Curve surface, the oblique side surfaces and the water sealing surface is a circular arc transition. 
     
     
         9 . The urinal according to  claim 1 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         10 . The urinal according to  claim 6 , wherein
 the water sealing surface is funnel-shaped and suitable for preventing the flushing water from overflowing from the urinal body, an outline obtained by transecting the water sealing surface on a side of the urinal body is a first curve, the first curve includes a first point and a second point, the first point is an intersection point of the water sealing surface and the water inlet, and the second point is a sudden increase point of a curvature when extending along the first curve towards the highest point of the water sealing surface;   a curvature of the first curve is minimum between the first point and the second point;   a vertical distance between the first point and the second point is less than or equal to 10 mm.   
     
     
         11 . The urinal according to  claim 2 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         12 . The urinal according to  claim 3 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         13 . The urinal according to  claim 4 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         14 . The urinal according to  claim 5 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         15 . The urinal according to  claim 6 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         16 . The urinal according to  claim 7 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         17 . The urinal according to  claim 8 , wherein a water pressure of a flushing water sprayed by the nozzle is less than 0.7 MPa. 
     
     
         18 . The urinal according to  claim 7 , wherein
 the water sealing surface is funnel-shaped and suitable for preventing the flushing water from overflowing from the urinal body, an outline obtained by transecting the water sealing surface on a side of the urinal body is a first curve, the first curve includes a first point and a second point, the first point is an intersection point of the water sealing surface and the water inlet, and the second point is a sudden increase point of a curvature when extending along the first curve towards the highest point of the water sealing surface;   a curvature of the first curve is minimum between the first point and the second point; and   a vertical distance between the first point and the second point is less than or equal to 10 mm.   
     
     
         19 . The urinal according to  claim 8 , wherein
 the water sealing surface is funnel-shaped and suitable for preventing the flushing water from overflowing from the urinal body, an outline obtained by transecting the water sealing surface on a side of the urinal body is a first curve, the first curve includes a first point and a second point, the first point is an intersection point of the water sealing surface and the water inlet, and the second point is a sudden increase point of a curvature when extending along the first curve towards the highest point of the water sealing surface;   a curvature of the first curve is minimum between the first point and the second point; and   a vertical distance between the first point and the second point is less than or equal to 10 mm.