Flushing assembly, water supply assembly, lower position water suction assembly, water tank, check valve for use in a toilet, and method, device, and storage medium for controlling toilet water consumption

Abstract

A check valve includes a lower sealing element; an upper sealing element including a flexible part configured to seal the lower sealing element; and a supporting element including a plurality of hollow parts. The supporting element is configured to be mounted in the lower sealing element and mounted at a side where clean water flows into the lower sealing element.

We claim: 
     
         1 . A check valve, comprising:
 a lower sealing element;   an upper sealing element comprising a flexible part configured to seal the lower sealing element; and   a supporting element comprising a plurality of hollow parts, and the supporting element configured to be mounted in the lower sealing element and mounted at a side where clean water flows into the lower sealing element.   
     
     
         2 . The check valve according to  claim 1 , wherein when the clean water flows in a first direction, the clean water passes through the plurality of hollow parts and deforms the flexible part to unseal the lower sealing element, and
 wherein when contaminated water flows in a second direction opposite to the first direction, the contaminated water presses the flexible part towards the lower sealing element, and the supporting element supports the flexible part to prevent the flexible part from being deformed.   
     
     
         3 . The check valve according to  claim 2 , wherein when the flexible part is deformed, the flexible part is separated from the lower sealing element to expose the plurality of hollow parts. 
     
     
         4 . The check valve according to  claim 3 , wherein when the clean water is stopped to flow in the first direction, the flexible part is restored to an original form to seal the lower sealing element due to a self-elasticity of the flexible part. 
     
     
         5 . The check valve according to  claim 1 , wherein the flexible part is a circular rubber sheet. 
     
     
         6 . The check valve according to  claim 1 , wherein the upper sealing element further comprises a connecting pin configured to be inserted into a pin hole of the supporting element. 
     
     
         7 . The check valve according to  claim 1 , wherein the lower sealing element is annular,
 wherein the lower sealing element comprises a blocking ring,   wherein the upper sealing element seals an outer surface of the blocking ring, and   wherein the supporting element is disposed on an inner surface of the blocking ring.   
     
     
         8 . The check valve according to  claim 1 , wherein the supporting element is circular,
 wherein the supporting element further comprises a plurality of rib strips distributed radially, and   wherein hollow parts are formed between each two adjacent rib strips of the plurality of rib strips.   
     
     
         9 . The check valve according to  claim 1 , wherein the check valve is configured to be mounted downstream from a vacuum breaker of a toilet. 
     
     
         10 . The check valve according to  claim 9 , wherein the check valve is configured to be mounted at a position between a main water input pipe of the toilet and a main filter screen of the toilet. 
     
     
         11 . A toilet, comprising:
 a vacuum breaker;   a check valve configured to be mounted downstream from the vacuum breaker, the check valve comprising:
 a lower sealing element; 
 an upper sealing element comprising a flexible part configured to seal the lower sealing element; and 
 a supporting element comprising a plurality of hollow parts, and the supporting element configured to be mounted in the lower sealing element and mounted at a side where clean water flows into the lower sealing element. 
   
     
     
         12 . The toilet according to  claim 11 , wherein when the clean water flows in a first direction, the clean water passes through the hollow parts and deforms the flexible part to unseal the lower sealing element, and
 wherein when contaminated water flows in a second direction opposite to the first direction, the contaminated water presses the flexible part towards the lower sealing element, and the supporting element supports the flexible part to prevent the flexible part from being deformed.   
     
     
         13 . The toilet according to  claim 12 , wherein when the flexible part is deformed, the flexible part is separated from the lower sealing element to expose the plurality of hollow parts. 
     
     
         14 . The toilet according to  claim 13 , wherein when the clean water is stopped to flow in the first direction, the flexible part is restored to an original form to seal the lower sealing element due to a self-elasticity of the flexible part. 
     
     
         15 . The toilet according to  claim 11 , wherein the upper sealing element further comprises a connecting pin configured to be inserted into a pin hole of the supporting element. 
     
     
         16 . The toilet according to  claim 11 , wherein the lower sealing element is annular,
 wherein the lower sealing element comprises a blocking ring,   wherein the upper sealing element seals an outer surface of the blocking ring, and   wherein the supporting element is disposed on an inner surface of the blocking ring.   
     
     
         17 . The toilet according to  claim 11 , wherein the supporting element is circular,
 wherein the supporting element further comprises a plurality of rib strips distributed radially, and   wherein hollow parts are formed between each two adjacent rib strips of the plurality of rib strips.   
     
     
         18 . The toilet according to  claim 11 , wherein the vacuum breaker is disposed at a top of the toilet, and
 wherein the vacuum breaker comprises a valve element configured to move horizontally.   
     
     
         19 . The toilet according to  claim 11 , further comprising:
 a water tank;   a main water input pipe configured to be connected to the water tank and configured to supply clean water to the water tank; and   a main filter screen;   wherein the check valve is configured to be mounted at a position between the main water input pipe and the main filter screen.   
     
     
         20 . A method for supplying clean water to a tank of a toilet by using a check valve, the method comprising:
 deforming, by clean water flowing in a first direction, a flexible part of an upper sealing element of the check valve to unseal a lower sealing element so as to allow the clean water to pass through the lower sealing element;   delivering, by the check valve, the clean water passing through the lower sealing element to the tank; and   pressing, by contaminated water flowing in a second direction opposite to the first direction, the flexible part towards the lower sealing element to seal the lower sealing element.