Spray system of washing machine and washing machine

Abstract

A spray system of a washing comprises a spray pipeline with one end being a water inlet and further comprises an air pressure communication device; and one side of the air pressure communication device communicates with the spray pipeline while the other side of the air pressure communication device communicates with an outer drum of the washing machine. The spray system has the advantage of simple structure. The outer drum of the washing machine can communicate with the spray pipeline by the air pressure communication device, the pressure of the outer drum of the washing machine is guaranteed to be the same as that of the spray pipeline, water in the spray pipeline can totally flow into the outer drum of the washing machine, and the problem of water dripping when a door is opened due to residual water in the spray pipeline is avoided.

1 . A spray system of a washing machine, comprising a spray pipeline with one end being a water inlet, wherein, the spray system further comprises an air pressure communication device,
 one side of the air pressure communication device communicates with the spray pipeline, and another side of the air pressure communication device communicates with an outer drum of the washing machine.   
     
     
         2 . The spray system of the washing machine according to  claim 1 , wherein, the air pressure communication device is arranged on the spray pipeline which is positioned at a downstream of the water inlet of the washing machine, at least one side of the air pressure communication device is arranged in the spray pipeline, and another side of the air pressure communication device communicates with the outer drum of the washing machine. 
     
     
         3 . The spray system of the washing machine according to  claim 2 , wherein, the air pressure communication device is arranged on the spray pipeline and is close to the water inlet. 
     
     
         4 . The spray system of the washing machine according to  claim 1 , wherein, the air pressure communication device has a ‘switch-on’ state and a ‘switch-off’ state,
 when the air pressure communication device is in the ‘switch-on’ state, the outer drum of the washing machine communicates with the spray pipeline through the air pressure communication device. 
 
     
     
         5 . The spray system of the washing machine according to  claim 1 , wherein, the air pressure communication device is a one-way valve, an outlet of the one-way valve communicates with the spray pipeline, and an inlet of the one-way valve communicates with the outer drum of the washing machine. 
     
     
         6 . The spray system of the washing machine according to  claim 5 , wherein, at least part of the outlet of the one-way valve is arranged in the spray pipeline. 
     
     
         7 . The spray system of the washing machine according to  claim 5 , wherein, the one-way valve comprises a valve body and a valve element, the valve element is arranged perpendicular to a center line of the spray pipeline and moves in a vertical direction,
 the one-way valve has a ‘switch-on’ state and a ‘switch-off’ state, the outer drum of the washing machine is allowed to communicate with or be closed off from the spray pipeline through the one-way valve by a movement of the valve element.   
     
     
         8 . The spray system of the washing machine according to  claim 6 , wherein, the spray system further comprises a pressurizing rib;
 the pressurizing rib is arranged in the spray pipeline, is positioned at a downstream of water flow of the one-way valve, is perpendicular to a direction of the water flow, and is close to the one-way valve.   
     
     
         9 . The spray system of the washing machine according to  claim 1 , wherein, the spray pipeline is arranged on a water storage tank cover of the washing machine in an integrally formed manner, the air pressure communication device communicates with a water storage tank of the washing machine through the water storage tank cover, the water storage tank communicates with the outer drum of the washing machine. 
     
     
         10 . The spray system of the washing machine according to  claim 9 , wherein, a flow channel is formed in an upper part of an outside of the water storage tank cover, the flow channel and the water storage tank cover are integrally formed, a flow channel top cover is arranged on the flow channel and is fastened to the flow channel, and a cavity formed by the flow channel top cover and the flow channel is the spray pipeline. 
     
     
         11 . A washing machine with the spray system according to  claim 1 . 
     
     
         12 . The spray system of the washing machine according to  claim 2 , wherein, the air pressure communication device has a ‘switch-on’ state and a ‘switch-off’ state,
 when the air pressure communication device is in the ‘switch-on’ state, the outer drum of the washing machine communicates with the spray pipeline through the air pressure communication device. 
 
     
     
         13 . The spray system of the washing machine according to  claim 2 , wherein, the air pressure communication device is a one-way valve, an outlet of the one-way valve communicates with the spray pipeline, and an inlet of the one-way valve communicates with the outer drum of the washing machine. 
     
     
         14 . The spray system of the washing machine according to  claim 6 , wherein, the one-way valve comprises a valve body and a valve element, the valve element is arranged perpendicular to a center line of the spray pipeline and moves in a vertical direction,
 the one-way valve has a ‘switch-on’ state and a ‘switch-off’ state, the outer drum of the washing machine is allowed to communicate with or be closed off from the spray pipeline through the one-way valve by a movement of the valve element.   
     
     
         15 . The spray system of the washing machine according to  claim 7 , wherein, the spray system further comprises a pressurizing rib;
 the pressurizing rib is arranged in the spray pipeline, is positioned at a downstream of water flow of the one-way valve, is perpendicular to a direction of the water flow, and is close to the one-way valve.   
     
     
         16 . The spray system of the washing machine according to  claim 2 , wherein, the spray pipeline is arranged on a water storage tank cover of the washing machine in an integrally formed manner, the air pressure communication device communicates with a water storage tank of the washing machine through the water storage tank cover, the water storage tank communicates with the outer drum of the washing machine.