Spray head, flushing system, and toilet

Abstract

A spray head, a flushing system, and a toilet. The spray head is applied to toilet drainage, and comprises: a body ( 2 ), the body ( 2 ) being provided with a first water path ( 201 ) and a second water path ( 202 ), and also a first water inlet ( 201 a ) and first water outlet ( 201 b ) communicated with the first water path ( 201 ), and a second water inlet ( 202 a ) and second water outlet ( 202 b ) communicated with the second water path ( 202 ); and an adapter ( 3 ), the adapter ( 3 ) being mounted on the body ( 2 ); the adapter ( 3 ) being provided with a flow channel ( 301 ) and also an inlet ( 301 a ) and outlet ( 301 b ) communicated with the flow channel ( 301 ), the outlet ( 301 b ) being communicated with the first water inlet ( 201 a ); wherein the first water outlet ( 201 b ) and the second water outlet ( 202 b ) have different flow areas.

1 . A spray head applicable to toilet drainage, comprising:
 a body provided with a first water path, a second water path, a first water inlet and a first water outlet that are communicated with the first water path, and a second water inlet and a second water outlet that are communicated with the second water path; and   an adapter mounted to the body, wherein the adapter is provided with a flow channel, and an inlet and an outlet that are communicated with the flow channel, and the outlet is communicated with the first water inlet;   wherein a flow area of the first water outlet is different from a flow area of the second water outlet.   
     
     
         2 . The spray head according to  claim 1 , wherein the adapter is sleeved on the body and is rotatable relative to the body; and
 wherein a water-passaging groove is provided between the adapter and the body, and the outlet is communicated with the first water inlet via the water-passaging groove.   
     
     
         3 . (canceled) 
     
     
         4 . The spray head according to  claim 2 , wherein one of the adapter and the body is provided with an annular groove, and an annular water-passaging groove is enclosed and formed by the annular groove and the other of the adapter and the body; or, the adapter and the body are each provided with an annular groove, and an annular water-passaging groove is formed by the two annular grooves. 
     
     
         5 . The spray head according to  claim 4 , wherein the water-passaging groove is provided on the body, and at least a portion of a bottom of the water-passaging groove is configured to be inclined to form a flow guide wall for guiding a flow in a direction toward the first water outlet; and
 wherein the flow guide wall is an oblique flat surface; or, the flow guide wall is an arc surface.   
     
     
         6 . (canceled) 
     
     
         7 . The spray head according to  claim 2 , wherein the body is provided with a channel and a separating rib provided in the channel, and the separating rib is used to divide the channel into the first water path and the second water path; and
 wherein a portion of the separating rib is a portion of the water-passaging groove.   
     
     
         8 . The spray head according to  claim 1 , wherein the adapter is fixed to the body; and
 wherein the body is provided with a channel and a separating rib provided in the channel, the separating rib is used to divide the channel into the first water path and the second water path; and there is an interval along an axial direction of the spray head between the first water inlet and an end of the separating rib away from the first water outlet.   
     
     
         9 . (canceled) 
     
     
         10 . The spray head according to  claim 1 , wherein a flow area of a region of the first water path close to the first water outlet is the same as a flow area of the first water outlet, and a shape of the region of the first water path close to the first water outlet is the same as a shape of the first water outlet; or, a flow area of the first water path gradually decreases in a direction toward the first water outlet; or, a flow area of the first water path gradually increases in a direction toward the first water outlet. 
     
     
         11 . The spray head according to  claim 1 , wherein a plurality of sealing rings are provided between the adapter and the body, and the plurality of sealing rings are respectively provided on both sides of the outlet along an axial direction of the body; and
 wherein one of the adapter and the body is provided with a sealing groove; a sealing ring is embedded into the sealing groove and is in contact and cooperation with the other of the adapter and the body.   
     
     
         12 . (canceled) 
     
     
         13 . The spray head according to  claim 1 , further comprising:
 a limiting plate sleeved on and fixed to an outer wall of the body; and   a fixing nut sleeved on and fixed to the outer wall of the body, and clamped together with the limiting plate to a spray port of a toilet body, so as to fix the spray head.   
     
     
         14 . The spray head according to  claim 13 , wherein the adapter is located between the fixing nut and the spray port of the toilet body. 
     
     
         15 . The spray head according to  claim 13 , wherein the outer wall of the body is provided with an avoidance groove recessed toward an interior of the body and a limiting buckle connected to a groove wall of the avoidance groove, and the limiting buckle is elastically deformable along a radial direction of the body;
 wherein the adapter is located between the limiting buckle and the fixing nut, and the limiting buckle is used to realize axial limiting of the adapter.   
     
     
         16 . The spray head according to  claim 13 , wherein the outer wall of the body is provided with a limiting groove extending along a circumferential direction of the body, and the limiting groove is provided with a notch; an inner wall of the adapter is provided with a limiting protrusion; and
 wherein the limiting protrusion is inserted into the limiting groove via the notch and is used together with the limiting groove for axial limiting of the adapter relative to the body.   
     
     
         17 . The spray head according to  claim 1 , wherein a contour line of a cross section of the first water outlet comprises an arc segment and a wave segment, and both ends of the wave segment are smoothly connected to the arc segment. 
     
     
         18 . The spray head according to  claim 1 , wherein a contour line of a cross section of the first water outlet comprises a first arc segment and a first wave segment, and both ends of the first wave segment are smoothly connected to the first arc segment; a contour line of a cross section of the second water outlet comprises a second arc segment and a second wave segment, and both ends of the second wave segment are smoothly connected to the second arc segment; and
 wherein the first wave segment and the second wave segment are provided oppositely and close to a radial center of the body.   
     
     
         19 . The spray head according to  claim 1 , wherein
 in a structure in which the flow area of the first water outlet is greater than the flow area of the second water outlet, a minimum flow area of the first water path ranges from 86.5 mm 2  to 133.0 mm 2 , and a minimum flow area of the second water path ranges from 16.0 mm 2  to 35.0 mm 2 ;   in a structure in which the flow area of the first water outlet is smaller than the flow area of the second water outlet, a minimum flow area of the second water path ranges from 86.5mm 2  to 133.0 mm 2 , and a minimum flow area of the first water path ranges from 16.0 mm 2  to 35.0 mm 2 ; and   an aspect ratio of the first water path ranges from 3.5 to 5.5, and an aspect ratio of the second water path ranges from 3.5 to 5.5.   
     
     
         20 . A flushing system comprising the spray head according to  claim 1 , the body being configured to be mounted to a spray port of a toilet body; the flushing system further comprising:
 a first water supply assembly for supplying water to one of the first and second water outlets that has a greater flow area; and   a second water supply assembly for supplying water to one of the first and second water outlets that has a smaller flow area;   wherein a water supply pressure of the first water supply assembly is greater than a water supply pressure of the second water supply assembly.   
     
     
         21 . The flushing system according to  claim 20 , wherein the first water supply assembly comprises a first water pipe for communicating with a toilet water tank, and a booster pump in communication with the first water pipe; and the second water supply assembly comprises a water supply pipe for communicating with tap water. 
     
     
         22 . The flushing system according to  claim 20 , further comprising a ring-brushing water path, wherein the first water supply assembly is communicated with a water inlet end of the ring-brushing water path so as to supply water to a toilet ring; or the second water supply assembly is communicated with a water inlet end of the ring-brushing water path so as to supply water to a toilet ring. 
     
     
         23 . The flushing system according to  claim 21 , further comprising a controller and a control valve electrically connected to the controller;
 wherein the controller is configured to control the control valve to operate, so as to realize water supply to the toilet body by at least one of the first water supply assembly and the second water supply assembly;   wherein the flushing system further comprises a detection unit electrically connected to the controller and a backup power source electrically connected to the controller; wherein the detection unit is configured to detect a voltage at an input end of the booster pump and send the voltage to the controller;   the controller is configured to control the control valve by controlling the backup power source if the controller determines that the voltage at the input end of the booster pump is less than a working voltage, such that the second water supply assembly supplies water to the toilet body; and   the controller is further configured to control the control valve if the controller determines that the voltage at the input end of the booster pump is not less than the working voltage, such that the first water supply assembly supplies water to the toilet body.   
     
     
         24 . (canceled) 
     
     
         25 . A toilet comprising a toilet body provided with a spray port and a flushing system according to  claim 20 ;
 wherein one of the first and second water outlets that has a smaller flow area is close to a bottom of the toilet body.