Scouring system

Abstract

The utility model relates to the technical field of intelligent closestools, and provides a flushing system which comprises a water tank, a pump and a four-way connector which are sequentially connected, the four-way connector comprises an inlet, a first outlet, a second outlet and a third outlet, the inlet is communicated with the pump, the first outlet is communicated with a flow increasing pipe assembly, and the second outlet is communicated with a third outlet. The flow increasing pipe assembly is communicated with a brush ring water path of the closestool; the second outlet is communicated with a flushing assisting water way of the closestool, and the flushing assisting water way is used for assisting flushing; and the third outlet is communicated with a drain valve, and the drain valve is driven to be opened to drain water for main flushing. On the basis, the stability of the flushing effect of the closestool can be ensured by brushing the ring and assisting flushing through the pump.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent toilet, in particular to a flushing system. BACKGROUND

[0002] In the design of existing flat toilets, water valves or pumps are usually used to supply water to the toilet for brushing and to drain the water through the drain valve for main flushing. Some products use municipal water or water pumps to provide auxiliary flushing water to increase the main flushing force in order to improve the flushing effect of the toilet. However, these designs have certain limitations.

[0003] Firstly, when using water pressure to brush and using an auxiliary flushing valve to flush, the flushing effect is greatly affected by water pressure fluctuations, resulting in unstable flushing effect, especially in the case of low water pressure, the flushing performance decreases significantly. When using a pump to brush, the aperture of the brushing nozzle usually needs to be ≥8mm, which causes most of the flow of the pump to be diverted to the brushing waterway. If you want to ensure the auxiliary flushing flow and pressure, you can use two pumps to brush and flush respectively, or increase the power of a single pump, which increases the cost of the pump.

[0004] Secondly, the potential energy of the water tank of the flat toilet is low, and the flushing force of the drain valve is relatively weak, which further affects the flushing effect. Therefore, the present application studies a flushing system to ensure the stability of the flushing effect. CONTENT OF THE INVENTION

[0005] In order to ensure the stability of the flushing effect, the present application provides a flushing system.

[0006] The flushing system provided by the present application adopts the following technical scheme:

[0007] A flushing system, comprising a water tank, a pump and a four-way joint connected in sequence, further comprising a brushing waterway, an auxiliary flushing waterway and a main flushing waterway, the brushing waterway flushes the pot surface of the toilet; the auxiliary flushing waterway is connected to the injection port at the bottom of the toilet for auxiliary flushing; the main flushing waterway is connected to a drain valve and the injection port at the bottom of the toilet for main flushing; the four-way joint comprises an inlet, a first outlet, a second outlet and a third outlet, the inlet is connected to the pump, the first outlet is connected to a flow increasing pipe assembly, the flow increasing pipe assembly is connected to the brushing waterway of the toilet; the second outlet is connected to the auxiliary flushing waterway of the toilet; and the third outlet is connected to the main flushing waterway of the toilet.

[0008] By adopting the technical scheme, water is provided for the brushing circle and the flushing by the pump, so that stable water flow and pressure of the brushing circle and the flushing can be ensured, efficient operation of the flushing system in a zero water pressure or low water pressure environment can be ensured, and the stability of the flushing is ensured; the brushing circle adopts the flow increasing pipe assembly structure, instantaneous large flow brushing circle is realized, the brushing circle effect is ensured, and the design of the flow increasing pipe can solve the demand for two pumps or the demand for increasing the power of a single pump. The structure is simplified, and the cost is saved.

[0009] Optionally, the water inlet valve is further provided, which has a water inlet end communicated with municipal water supply, and has a first water outlet channel and a second water outlet channel, the first water outlet channel is communicated with the flow increasing pipe assembly, and the second water outlet channel is communicated with the water tank; a first control valve for controlling opening and closing of the first water outlet channel is further provided, the first control valve is electronic or mechanical; a second control valve for controlling opening and closing of the second water outlet channel is further provided, the second control valve is electronic or mechanical; or a switching valve for switching and controlling opening and closing of the first water outlet channel and the second water outlet channel is further provided, the switching valve is electronic or mechanical.

[0010] By adopting the technical scheme, the water inlet valve can directly deliver part of the water flow to the flow increasing pipe assembly for brushing circle waterway operation, municipal pressure water is added on the basis of the original pump, the waterway system is further pressurized, and the flushing effect is continuously improved. Meanwhile, the electromagnetic valve controls opening and closing of the water inlet valve, and the brushing circle is performed through the flow increasing pipe group, so that pre-wetting and early brushing circle operation can also be realized. In addition, the water inlet valve delivers another part of the water flow to the water tank for storage and subsequent main flushing operation. Through this flow distribution mode, the system can realize dynamic balance of the water flow, and ensure full utilization of the water source; the design of the water inlet valve enables the system to dynamically adjust water flow distribution according to actual demand.

[0011] Optionally, the flow increasing pipe assembly includes a Venturi tube, negative pressure is generated in the process that the first outlet sprays the water, and the Venturi tube can suck water in the water tank to the brushing circle waterway under the action of the negative pressure.

[0012] By adopting the technical scheme, the flow increasing pipe assembly uses the Venturi effect to wash water in the water tank to the waterway to realize instantaneous large flow, ensures the flushing effect, makes the nozzle size small, makes the pump not be relieved too much by the brushing circle waterway, ensures the flushing flow, and the pump power can be reduced under the same flushing effect.

[0013] Optionally, the flow increasing pipe assembly includes a three-way joint, the three-way joint has a first water inlet communicated with the first outlet, a second water inlet communicated with the first water outlet channel of the water inlet valve, and a nozzle communicated with the brushing circle waterway.

[0014] Optionally, the flow increasing pipe assembly further comprises a baffle, the baffle is arranged rotatably between the first water inlet and the second water inlet, in the rotating process, the baffle seals the first water inlet or the second water inlet; or the baffle is located between the first water inlet and the second water inlet, and the first water inlet and the second water inlet are opened simultaneously; or the first water inlet is provided with a first check valve for preventing reverse flow, and the second water inlet is provided with a second check valve for preventing reverse flow.

[0015] By adopting the above technical scheme, when the water inlet valve works and the pump is closed, the baffle seals the first water inlet to avoid reverse flow from the pump; when the pump works and the water inlet valve is closed, the baffle seals the second water inlet to avoid reverse flow from the water inlet valve, thereby ensuring the nozzle flow; when the water inlet valve and the pump both work, the baffle is located between the first water inlet and the second water inlet, so that the first water inlet and the second water inlet are both in an open state, at this time, the pre-wetting of the brush ring can be realized, and the pipeline is pressurized when the pump starts to work, thereby continuously improving the effect of the brush ring and the flushing aid. Similarly, the first water inlet is provided with a first check valve for preventing reverse flow, and the second water inlet is provided with a second check valve for preventing reverse flow, which can also avoid reverse flow from the water inlet valve.

[0016] Optionally, the flushing water path is provided with an air exhaust structure, and air in the flushing water path can be exhausted from the air exhaust structure.

[0017] Optionally, a filter screen is arranged in the water tank, and the filter screen is provided with a water outlet path in communication with a water inlet end of the pump.

[0018] By adopting the above technical scheme, the pump draws water from the water tank, and the water in the water tank enters the pump through the filter screen.

[0019] Optionally, the filter screen is detachably installed in the water tank, the filter screen is provided with a limiting buckle and a screw connection hole, the water tank is provided with a matching buckle matched with the limiting buckle, the filter screen is clamped by the limiting buckle and the matching buckle, and the filter screen is screwed with the water tank through the screw connection hole.

[0020] Optionally, the water inlet valve and the water outlet valve are integrally arranged, or the water inlet valve and the water outlet valve are separately and detachably arranged and connected through a quick release part.

[0021] Optionally, the water outlet valve is a hydraulic water outlet valve, water in the third outlet can drive the hydraulic water outlet valve to open a sealing disc of the water outlet valve; the water outlet valve can be linked with the water inlet valve through a steel wire rope to realize linkage control or non-linkage control, and the water outlet valve can be linked with a first control valve of the water inlet valve to realize linkage control.

[0022] By adopting the technical scheme, the pump is used to shunt to the hydraulic drain valve to drive the drain valve to start, and a mechanism for separately controlling the starting of the drain valve is saved.

[0023] In summary, the present application has the following beneficial technical effects:

[0024] 1. The pump is used to provide water source for brushing and flushing, which can ensure stable water flow and pressure for brushing and flushing, ensure efficient operation of the flushing system in zero or low water pressure environment, and ensure the stability of flushing; the brushing uses a flow increasing pipe assembly structure to realize instant large flow brushing, ensure the brushing effect, and the design of the flow increasing pipe can solve the need for two pumps or the need to increase the power of a single pump, simplify the structure, and save costs.

[0025] 2. The water inlet valve can directly deliver part of the water flow to the flow increasing pipe assembly for brushing waterway operation, and increase the municipal pressure water on the basis of the original pump to further pressurize the waterway system and continue to improve the flushing effect. At the same time, the first control valve can control the opening and closing of the water inlet valve, and the brushing through the flow increasing pipe can also realize pre-wetting and early brushing operation. In addition, the water inlet valve delivers another part of the water flow to the water tank for storage and subsequent main flushing operation. Through this shunt mode, the system can realize dynamic balance of water flow and ensure full utilization of water source; the design of the water inlet valve enables the system to dynamically adjust water flow distribution according to actual needs.

[0026] 3. The flow increasing pipe assembly uses the Venturi effect to wash the water in the water tank to the waterway to realize instant large flow, ensure the flushing effect, make the nozzle size small, make the pump not be relieved too much by the brushing waterway, ensure the flushing flow, and reduce the pump power under the same flushing effect.

[0027] 4. When the water inlet valve works and the pump is closed, the baffle seals the first water inlet to avoid water flow from the pump; when the pump works and the water inlet valve is closed, the baffle seals the second water inlet to avoid water flow from the water inlet valve, ensuring the nozzle flow; when the water inlet valve and the pump work, the baffle is between the first water inlet and the second water inlet, ensuring that the first water inlet and the second water inlet are in an open state, at which time pre-wetting of brushing can be realized, and the pipe is pressurized when the pump starts to work, further improving the effect of brushing and flushing. Similarly, the first water inlet is provided with a first check valve for reverse prevention, and the second water inlet is provided with a second check valve for reverse prevention, which can also avoid water flow from the water inlet valve.

[0028] 5. The pump draws water from the water tank, and the water in the water tank enters the pump through the filter screen.

[0029] 6. The pump is used to shunt to the hydraulic drain valve to drive the drain valve to start, and a mechanism for separately controlling the starting of the drain valve is saved.

[0030] 7. The above points are used to realize accurate distribution and efficient use of water flow, and can realize stable brushing, flushing and main flushing effects, and solve the problem of poor flushing effect caused by low potential energy of the water tank and unstable water pressure of the traditional flat toilet. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0032] In the drawings:

[0033] Figure 1 is a structural schematic diagram of the flushing system of the embodiment of the present application;

[0034] Figure 2 is a structural schematic diagram of the flushing system of the embodiment of the present application, except the toilet ceramic;

[0035] Figure 3 A is a structural schematic diagram of the four-way joint connected with the pump in the flushing system of the embodiment of the present application;

[0036] Figure 3 B is a cross-sectional schematic diagram of the four-way joint and a water flow direction schematic diagram in the flushing system of the embodiment of the present application;

[0037] Figure 4 C is a cross-sectional schematic diagram when the drain valve is in a closed state in the flushing system of the embodiment of the present application;

[0038] Figure 4 D is a cross-sectional schematic diagram when the drain valve is in an open state in the flushing system of the embodiment of the present application;

[0039] Figure 5 is a structural schematic diagram of the water inlet valve in the flushing system of the embodiment of the present application;

[0040] Figure 6 is a water path schematic diagram of the water inlet valve in the flushing system of the embodiment of the present application;

[0041] Figure 7 G is a structural schematic diagram of the quick release assembly cooperating with the water inlet valve in the flushing system of the embodiment of the present application;

[0042] Figure 7 H is a structural schematic diagram of the quick release assembly in the flushing system of the embodiment of the present application;

[0043] Figure 8 I is a state schematic diagram of the quick release assembly and the drain valve when they are not assembled in the flushing system of the embodiment of the present application;

[0044] Figure 8 J is the state diagram of the quick release assembly and the drain valve in the flushing system of the embodiment of the application;

[0045] Figure 9 K is the structural diagram of the water inlet valve in the flushing system of the embodiment of the application;

[0046] Figure 9 L is the structural diagram of the drain valve in the flushing system of the embodiment of the application;

[0047] Figure 10 M is the cross-sectional diagram of the water inlet valve and the drain valve cooperating with each other in the flushing system of the embodiment of the application;

[0048] Figure 11 M is the structural diagram of the flow increasing pipe assembly in the flushing system of the embodiment of the application;

[0049] Figure 11 N is the structural diagram of the water inlet connector in the flushing system of the embodiment of the application;

[0050] Figure 11 O is the structural diagram of the baffle in the flushing system of the embodiment of the application;

[0051] Figure 11 P is the structural diagram of the flow increasing pipe assembly without the water inlet connector in the flushing system of the embodiment of the application;

[0052] Figure 12 Q is the baffle state diagram when the water inlet valve works in the flushing system of the embodiment of the application;

[0053] Figure 12 R is the baffle state diagram when the pump works in the flushing system of the embodiment of the application;

[0054] Figure 12 S is the baffle state diagram when the water inlet valve and the pump work simultaneously in the flushing system of the embodiment of the application;

[0055] Figure 13 T is the cross-sectional diagram of the filter screen and the pump cooperating with each other in the flushing system of the embodiment of the application;

[0056] Figure 14 T is the cross-sectional diagram of the filter screen and the pump cooperating with each other in the flushing system of the embodiment of the application;

[0057] Figure 14 U is the structural diagram of the filter screen in the flushing system of the embodiment of the application;

[0058] Figure 15 U is the structural diagram of the filter screen in the flushing system of the embodiment of the application;

[0059] Figure 16 is a structural schematic view of a water tank in a flushing system according to an embodiment of the present application;

[0060] Figure 17 is a schematic view of waterway connection in a flushing system according to an embodiment of the present application.

[0061] Reference signs: 1, water tank; 2, pump; 3, four-way joint; 7, first outlet; 5, second outlet; 6, third outlet; 8, flow-increasing pipe assembly; 9, exhaust structure; 10, integrated valve; 101, drain valve; 102, water inlet valve; 11, piston rod; 12, steel wire rope; 13, return spring; 14, drain port; 15, water inlet end; 16, first water outlet channel; 17, second water outlet channel; 18, electromagnetic valve; 19, float bucket water stop cup; 20, water stop pad; 21, quick release; 22, quick release buckle; 23, avoidance groove; 24, first limiting portion; 25, mounting buckle; 26, limiting rib; 27, first water inlet; 28, second water inlet; 29, nozzle; 30, baffle; 31, rotation groove; 32, water inlet joint; 33, anti-rain plug; 34, filter screen; 35, auxiliary water tank; 36, water outlet pipeline; 37, limiting buckle; 38, screw connection hole; 39, matching buckle; 40, screw column; 41, first mounting space; 42, second mounting space; 43, third mounting space; 44, fourth mounting space; 45, second limiting portion. DETAILED DESCRIPTION

[0062] The following will be described in detail with reference to the accompanying drawings. Figures 1-17 The present application is further described in detail.

[0063] An embodiment of the present application discloses a flushing system. Referring to Figure 1 , Figure 2 and Figure 17 , the flushing system comprises a water tank 1, a pump 2 and a four-way joint 3 connected in sequence, and further comprises a brush circle waterway, an auxiliary flushing waterway and a main flushing waterway. The brush circle waterway is used for flushing the pot surface of the closestool. The auxiliary flushing waterway is connected to the spray port at the bottom of the closestool and is used for auxiliary flushing. The main flushing waterway is connected to the drain valve 101 and is connected to the spray port at the bottom of the closestool and is used for main flushing.

[0064] Referring to Figure 3 , the four-way joint 3 comprises an inlet, a first outlet 7, a second outlet 5 and a third outlet 6. The inlet is connected to the pump 2. The first outlet 7 is connected to the flow-increasing pipe assembly 8. The flow-increasing pipe assembly 8 is connected to the closestool brush circle waterway. The brush circle adopts the flow-increasing pipe assembly structure, realizes instantaneous large-flow brush circle, ensures the brush circle effect, and simultaneously solves the need for two pumps or the need for improving the power of a single pump, simplifies the structure and saves the cost.

[0065] The second outlet 5 is connected with an auxiliary flushing water path, which pressurizes the main flushing water flow, ensures that the water flow of the toilet jetting port has sufficient impact force, and can effectively compensate for the impact of water pressure fluctuation on the main flushing.

[0066] The third outlet 6 is connected with a drain valve 101 for main flushing, and the drain valve 101 drains water with low potential energy, and the auxiliary flushing water path compensates for this problem. Preferably, the drain valve 101 is a hydraulic drain valve 101, and the water in the third outlet 6 can drive the hydraulic drain valve 101 to open the sealing disc of the drain valve 101, so that the water can be drained. Since the pump is used to drive the hydraulic drain valve to open and close, the water pressure thrust can be used to reduce the additional driving parts, and the structure is simpler.

[0067] The pump is used to provide water for the brush circle and the auxiliary flushing, which can ensure stable water flow and pressure of the brush circle and the auxiliary flushing, ensure that the flushing system can operate efficiently in a zero water pressure or low water pressure environment, and ensure the stability of the flushing.

[0068] Referring to Figure 4 In some embodiments, the drain valve 101 can be linked or not linked with the water inlet valve 102 through the steel wire rope 12. Specifically, a piston rod 11 is slidably arranged in the drain valve 101, one end of the steel wire rope 12 is connected to the piston rod 11, the steel wire rope 12 drives the piston rod 11 to move in the drain valve 101, and a return spring 13 is arranged between the piston rod 11 and the inner wall of the drain valve 101, and the return spring 13 is used to reset the piston rod 11 to press the drain port 14 of the drain valve 101; when the drain valve 101 is in a closed state, i.e., the steel wire rope 12 is not pulled, the return spring 13 presses the piston rod 11, so that the piston rod 11 is sealed and abuts against the drain port 14 of the drain valve 101; when the drain valve 101 is in an open state, i.e., the steel wire rope 12 is pulled, the steel wire rope 12 is pulled away from the drain valve 101, the return spring 13 is compressed, and the piston rod 11 is away from the drain port 14 of the drain valve 101, so that the water can be drained; when the water is drained, the steel wire rope 12 is released, and the force of the return spring 13 returning to the original state presses the piston rod 11 against the drain port 14 to seal the drain port 14.

[0069] Referring to Figure 5 and Figure 6In some embodiments, the flushing system further comprises a water inlet valve 102, which has a water inlet end 15 in communication with a municipal water supply, and has a first water outlet channel 16 in communication with the flow increasing pipe assembly 8 and a second water outlet channel 17 in communication with the water tank 1 for water storage in the water tank 1. The water inlet valve 102 further comprises a first control valve for controlling the opening and closing of the first water outlet channel 16, which is electronic or mechanical. The water inlet valve 102 further comprises a second control valve for controlling the opening and closing of the second water outlet channel 17, which is electronic or mechanical. Alternatively, the water inlet valve 102 further comprises a switching valve for switching the opening and closing of the first water outlet channel 16 and the second water outlet channel 17, which is electronic or mechanical. Specifically, in the present embodiment, an electromagnetic valve 18 is arranged between the water inlet valve 102 and the flow increasing pipe assembly 8, and a water stop pad 20 is arranged, for controlling the opening and closing of the pre-wetting water path. A float cup 19 is arranged between the water inlet valve 102 and the water tank 1, and a water stop pad 20 is arranged, for opening and closing according to the water level of the water tank 1, and for water storage and replenishment of the water tank 1.

[0070] Referring to Figures 7-8 In some embodiments, the water inlet valve 102 and the water outlet valve 101 are integrally arranged, or the water inlet valve 102 and the water outlet valve 101 are detachably arranged separately, and are connected by a quick release member 21. When the water inlet valve 102 and the water outlet valve 101 are connected, an integrated valve 10 is formed. The water inlet valve 102 is slidably arranged with the quick release member 21, which has a plurality of quick release buckles 22, and each quick release buckle 22 on the same side has an avoiding groove 23. The water outlet valve 101 has mounting buckles 25 matched with the quick release buckles 22, and further comprises a resilient member (not shown), which provides a restoring force for the quick release member 21. When disassembling, press the quick release member 21, separate the quick release buckles 22 from the mounting buckles 25, and then pull out the water inlet valve 102 upward. When assembling, press the quick release member 21, insert the mounting buckles 25 of the water outlet valve 101 into the avoiding grooves 23, and then release the quick release member 21, which is reset under the action of the resilient member, so that the quick release buckles 22 and the mounting buckles 25 are engaged with each other. The quick release member 21 further has a first limiting portion 24, and the water inlet valve 102 has a second limiting portion 45. When the resilient member provides a restoring force for the quick release member 21, the first limiting portion 24 and the second limiting portion 45 can be engaged to prevent the quick release member 21 from being separated from the water inlet valve 102.

[0071] Referring to Figures 9-10 In the present embodiment, the water outlet valve 101 and the water inlet valve 102 are both arranged with limiting ribs 26 on the outer periphery. When the water outlet valve 101 and the water inlet valve 102 are installed in position relative to each other, the limiting ribs 26 of the two are inserted into each other for limiting, so as to prevent the relative rotation between the water outlet valve 101 and the water inlet valve 102.

[0072] Referring to Figure 11In some embodiments, the flow increasing pipe assembly 8 comprises a Venturi tube, the first outlet 7 sprays water to the Venturi tube to generate negative pressure, and the Venturi tube can suck water from the water tank 1 to the brush circle waterway under the action of the negative pressure.

[0073] In some embodiments, the flow increasing pipe assembly 8 comprises a tee joint, which has a first water inlet 27 communicating with the first outlet 7, a second water inlet 28 communicating with the first outlet channel 16 of the water inlet valve 102, and a water inlet joint 32 clamped on the second water inlet 28 for communication with the water inlet valve 102. The tee joint also has a nozzle 29 communicating with the brush circle waterway. In some embodiments, the inner diameter of the nozzle 29 is 4.5 mm. The nozzle 29 is small in size by utilizing the Venturi effect, so that the pump 2 is not relieved too much by the brush circle waterway, and the flushing flow is ensured, so that the power of the pump 2 can be reduced under the same flushing effect.

[0074] Referring to Figure 11 and Figure 12 In some embodiments, the flow increasing pipe assembly 8 further comprises a baffle 30, which is rotatably arranged between the first water inlet 27 and the second water inlet 28. The baffle 30 has sealing pads on both sides for sealing the first water inlet 27 and the second water inlet 28, respectively. The flow increasing pipe assembly 8 of the present embodiment is provided with a rotating groove 31, and both ends of the baffle 30 are limited to rotate in the rotating groove 31. During rotation, the baffle 30 seals and closes the first water inlet 27 or the second water inlet 28, that is, when the baffle 30 seals and closes the first water inlet 27, the second water inlet 28 is in an open state; when the baffle 30 seals and closes the second water inlet 28, the first water inlet 27 is in an open state; or located between the first water inlet 27 and the second water inlet 28, and the first water inlet 27 and the second water inlet 28 are both opened.

[0075] Referring to Figure 12 Q, when the water inlet valve 102 works and the pump 2 is closed, the baffle 30 seals and closes the first water inlet 27 to avoid backflow of water from the pump 2. Referring to Figure 12 R, when the pump 2 works and the water inlet valve 102 is closed, the baffle 30 seals and closes the second water inlet 28 to avoid backflow of water from the water inlet valve 102, and ensure the flow of the nozzle 29. Referring to Figure 12 S, when the water inlet valve 102 and the pump 2 both work, the baffle 30 is located between the first water inlet 27 and the second water inlet 28 to ensure that the first water inlet 27 and the second water inlet 28 are both in an open state. In other embodiments, the first water inlet 27 is provided with a first check valve for backflow prevention, and the second water inlet 28 is provided with a second check valve for backflow prevention. The arrangement of the first check valve and the second check valve can avoid backflow of water from the pump 2 or the water inlet valve 102, and ensure the reliability of the flow distribution of the pipeline.

[0076] Referring to Figure 13In the embodiment, the auxiliary flushing water path is provided with an exhaust structure 9, and air in the auxiliary flushing water path can be exhausted from the exhaust structure 9. Specifically, the exhaust structure 9 includes an exhaust pipe, air in the pipe can be exhausted from the exhaust pipe, and the exhaust pipe is provided with an anti-horn plug 33.

[0077] With reference to Figure 14 In some embodiments, the water tank 1 is provided with a filter screen 34, and the filter screen 34 is provided with a water outlet pipeline 36 in communication with the water inlet end 15 of the pump 2. The water tank 1 of the embodiment has a sub-tank 35, and the sub-tank 35 is provided in a sunken manner. The filter screen 34 is arranged in the sub-tank 35, and water in the water tank 1 is pumped into the pump 2 through the filter screen 34, so that the pumping of the pump 2 can be extended to the sub-tank 35. The sub-tank 35 is sunken, and water in the water tank 1 flows to the sub-tank 35, so that the full use of water in the water tank 1 can be ensured.

[0078] With reference to Figure 14 With Figure 15 In some embodiments, the filter screen 34 is detachably arranged in the water tank 1. The filter screen 34 is provided with a limiting buckle 37 and a screw connection hole 38, the sub-tank 35 is provided with a cooperating buckle 39 matched with the limiting buckle 37, the filter screen 34 slides left and right along the horizontal direction to realize the buckling and detaching of the limiting buckle 37 and the cooperating buckle 39, and the filter screen 34 is screwed with the water tank 1 through the screw connection hole 38.

[0079] With reference to Figure 16 In the embodiment, the sub-tank 35 is provided with a screw column 40 for screwing with the screw connection hole 38 after being docked. The water tank 1 is also provided with a first mounting space 41 for mounting the pump 2, a second mounting space 42 for mounting the exhaust structure 9, a third mounting space 43 for mounting the flow increasing pipe assembly 8, and a fourth mounting space 44 for mounting the integrated valve 10.

[0080] The implementation principle of the flushing system of the embodiment is as follows: the pump 2 provides stable water flow and pressure, ensures that the flushing system can operate efficiently under different water pressure environments, and ensures the stability of water pressure; the flow increasing pipe assembly 8 optimizes the water flow path and increases the flow rate, ensures that the water flow in the flushing ring water path is concentrated and powerful, and avoids the problem of water flow dispersion caused by too large nozzle aperture in the traditional design; the auxiliary flushing water path can increase the pressure of water flow, ensures that the water flow of the toilet jet port has sufficient impact force, and can effectively compensate for the problem of weak flushing force caused by insufficient water pressure; the third outlet 6 controls the main flushing flow through the drain valve 101, ensures that a large amount of water flow can be quickly released during the main flushing stage, forms strong flushing force, and completely removes dirt; thereby, the precise distribution and efficient use of water flow are realized, and the problem of poor flushing effect caused by low potential energy and unstable water pressure of the traditional flat toilet is solved.

[0081] The above are exemplary embodiments disclosed by the present application, but it should be noted that various changes and modifications can be made without departing from the scope of the embodiments disclosed by the present application as defined by the claims. The functions, steps and / or actions of the method claims described herein need not be performed in any particular order. Furthermore, although elements of the embodiments disclosed by the present application can be described or claimed in individual form, unless explicitly restricted, they can also be implemented in multiple forms.

[0082] It should be understood that, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", as used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The embodiment number of the embodiments disclosed by the present application is only for description, and does not represent the advantages and disadvantages of the embodiments.

[0083] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary, and is not intended to imply that the scope of the embodiments disclosed by the present application (including claims) is limited to these examples; under the idea of the embodiments disclosed by the present application, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes of the different aspects of the embodiments disclosed by the present application as above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principles of the embodiments disclosed by the present application shall be included in the scope of protection of the embodiments disclosed by the present application.

Claims

1. A flushing system, characterized in that: The toilet includes a water tank, a pump, and a four-way connector connected in sequence. It also includes a brush ring water path, an auxiliary flushing water path, and a main flushing water path. The brush ring water path washes the toilet bowl surface. The auxiliary flushing water path connects to a jet nozzle at the bottom of the toilet for assisting flushing. The main flushing water path connects to a drain valve and is connected to the jet nozzle at the bottom of the toilet for main flushing. The four-way connector includes an inlet, a first outlet, a second outlet, and a third outlet. The inlet connects to the pump. The first outlet connects to a flow booster assembly, which connects to the brush ring water path. The second outlet connects to the auxiliary flushing water path. The third outlet connects to the main flushing water path.

2. The flushing system according to claim 1, characterized in that: It also includes an inlet valve, which has an inlet end connected to the municipal water supply, and a first outlet channel and a second outlet channel. The first outlet channel is connected to the flow booster assembly, and the second outlet channel is connected to the water tank. It also includes a first control valve for controlling the opening and closing of the first outlet channel, which is electronic or mechanical. It also includes a second control valve for controlling the opening and closing of the second outlet channel, which is electronic or mechanical. Alternatively, it also includes a switching valve for switching the opening and closing of the first outlet channel and the second outlet channel, which is electronic or mechanical.

3. The flushing system according to claim 1, characterized in that: The flow booster assembly includes a venturi tube. During the process of the first outlet spraying into the venturi tube, a negative pressure is generated. Under the action of the negative pressure, the venturi tube can draw water from the water tank into the brush ring water path.

4. The flushing system according to claim 2, characterized in that: The flow booster assembly includes a tee connector, which has a first inlet connected to the first outlet, a second inlet connected to the first outlet channel of the inlet valve, and a nozzle connected to the brush ring water path.

5. A flushing system according to claim 4, characterized in that: The flow booster assembly also includes a baffle plate, which is rotatably disposed between the first water inlet and the second water inlet. During rotation, the baffle plate seals and closes the first water inlet or the second water inlet; or it is located between the first water inlet and the second water inlet, and simultaneously opens the first water inlet and the second water inlet; or the first water inlet is provided with a first check valve for backflow prevention, and the second water inlet is provided with a second check valve for backflow prevention.

6. The flushing system according to claim 1, characterized in that: The flushing water passage is equipped with an exhaust structure, through which air inside the flushing water passage can be discharged.

7. A flushing system according to claim 1, characterized in that: The water tank is equipped with a filter screen, and the filter screen is connected to the water inlet of the pump via an outlet pipe.

8. A flushing system according to claim 7, characterized in that: The filter screen is detachably installed inside the water tank. The filter screen is provided with a limiting buckle and a screw connection hole. The water tank is provided with a matching buckle that cooperates with the limiting buckle. The filter screen is engaged with the matching buckle through the limiting buckle and screwed to the water tank through the screw connection hole.

9. A flushing system according to claim 2, characterized in that: The inlet valve and the drain valve are integrated, or the inlet valve and the drain valve are separate and detachable, and connected by quick-release parts.

10. A flushing system according to claim 2, characterized in that: The drain valve is a hydraulic drain valve, and the water in the third outlet can drive the hydraulic drain valve to open the sealing plate of the drain valve; the drain valve can be linked or not linked with the water inlet valve through a steel wire rope, wherein the drain valve can be linked with the first control valve of the water inlet valve.

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