Automatic flushing system of closestool

Abstract

The utility model discloses an automatic flushing system of a closestool, which comprises a flow guide pipe, an impeller pump and an on-off valve, the flow guide pipe is provided with a flushing port and a water replenishing port, the flushing port is positioned at the lower end of the flow guide pipe, a pipeline 36 of the flushing port is intersected with a drain outlet pipeline of the closestool and then is hermetically connected with a sewer, and the on-off valve is provided with a water inlet, a flushing port and a siphon port. The flushing water opening is a normal boiled water opening and is communicated with a flushing water path in the pedestal pan, the water supplementing opening is communicated with the siphon water opening, a water inlet of the on-off valve is communicated with the water outlet end of the impeller pump, two water pumping cavities which are oppositely distributed up and down are formed in the impeller pump, each water pumping cavity corresponds to one inlet end, and the number of the inlet ends is two. The two water pumping cavities are a first inlet end and a second inlet end and are communicated through a water outlet flow channel, the water outlet ends are communicated with the water outlet flow channel, impellers are arranged in the water pumping cavities, and the two impellers are connected with the two ends of a rotating shaft of the impeller pump respectively. According to the utility model, the flushing amount can be increased, and the sewage discharge effect of the closestool is better.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box molding, in particular to an automatic flushing system for a toilet. Background Art

[0002] With the application and promotion of toilets, more and more toilets are entering people's home bathroom configuration equipment. An important system in a toilet is the flushing water system. The flushing system on the existing toilet mainly relies on the height difference to flush and clean the inside of the toilet. The sewage discharge effect of this flushing method is not ideal. Utility Model Content

[0003] The utility model aims to provide an automatic flushing system for a toilet, which can suck sewage and debris inside the toilet bowl into a sewer through a siphon effect, thereby improving the sewage discharge effect of the toilet bowl.

[0004] In order to solve the above technical problems, the utility model adopts the following solutions:

[0005] An automatic flushing system for a toilet, comprising a flushing system arranged inside the toilet, the flushing system comprising a guide pipe, an impeller pump, and an on-off valve, the impeller pump and the guide pipe being arranged in a water tank provided with the toilet, a flushing port and a water replenishing port being arranged on the guide pipe, the flushing port being located at the lower end of the guide pipe, the flushing port pipeline intersecting with the sewage outlet pipeline of the toilet and being sealed and connected to the sewer, the on-off valve being provided with a water inlet, a flushing water port, and a siphon water port, the flushing water port being a normally open water port, and the flushing water port being a normally open water port. The water inlet is connected to the flushing water channel inside the toilet, the water replenishment port is connected to the siphon water port, the water inlet of the on-off valve is connected to the water outlet end of the impeller pump, and the impeller pump has two pump water chambers distributed relatively up and down, each pump water chamber corresponds to an inlet end, and there are two inlet ends, namely the first inlet end and the second inlet end. The two pump water chambers are connected by a water outlet channel, and the water outlet end is connected to the water outlet channel. Impellers are provided in the pump water chambers, and the two impellers are respectively connected to the two ends of the rotating shaft of the impeller pump.

[0006] Due to the adoption of the above technical scheme, the water tank is installed on the toilet bowl of the toilet to store the water required for flushing. The guide pipe is vertically arranged in the water tank. The guide pipe is provided with a flushing port and a water replenishing port. The flushing port is located at the lower end of the guide pipe. The flushing port pipeline intersects with the sewage outlet pipeline of the toilet bowl and is sealed and connected to the sewer. At the same time, the on-off valve is provided with a water inlet, a flushing water port and a siphon water port. The flushing water port is a normally open water port. The flushing water port is connected to the flushing water path inside the toilet bowl. The water inlet of the on-off valve is connected to the water outlet end of the impeller pump. When the impeller pump is working, the impellers in the two pump water chambers rotate to suck water from the first inlet end and the second inlet end into the two pump water chambers respectively, and then transport it from the outlet flow channel to the outlet end, and finally transport it to the flushing water port and the siphon water port through the pipeline. The water replenishing port of the guide pipe is connected to the siphon water port of the on-off valve. The flushing The water outlet transports water to the flushing water channel inside the toilet, which can then flush the inner wall of the toilet bowl. The debris and sewage inside the toilet are collected at the sewage outlet, and the water is flushed out by the flush outlet pipe, and then discharged to the intersection with the toilet sewage outlet pipe and flows away from the sewer, and negative pressure is generated at the intersection of the sewage outlet pipe and the flush outlet pipe, thereby sucking the sewage and debris inside the toilet out of the sewage outlet and discharged from the sewer. The greater the water volume of the flush outlet, the greater the negative pressure generated. The two inlet ends of the impeller pump increase the water absorption volume, thereby increasing the water volume output by the on-off valve. Therefore, the amount of water coming out of the flush outlet of the toilet is greater, and the negative pressure generated at the intersection of the flush outlet pipe and the sewage outlet pipe is greater, the water absorption capacity is stronger, and it is easier to suck the sewage and debris at the sewage outlet into the sewer, so that the sewage discharge effect of the toilet is better.

[0007] Optionally, the water outlet is provided with a first water outlet, the first water outlet is connected to one end of the water outlet channel, and the on-off valve is provided with a water inlet connected to the first water outlet, which is the first water inlet.

[0008] Optionally, the water outlet is provided with two, namely the second water outlet and the third water outlet, the second water outlet and the third water outlet are respectively connected to the two ends of the water outlet flow channel, and the on-off valve is provided with two water inlets respectively connected to the second water outlet and the third water outlet, namely the second water inlet and the third water inlet.

[0009] Optionally, the on-off valve includes a valve body, a valve core, and a valve seat. The water inlet, siphon water port and flushing water port are all arranged on the valve body. The valve core is rotatably arranged in the valve body. The valve seat is arranged at the bottom of the valve body and seals the valve core in the valve body. The valve seat is bolted to the valve body. The siphon water port and the flushing water port are arranged opposite to each other. The middle part of the valve core is a cavity, and the cavity is connected to the water inlet. The side wall of the valve core is circumferentially provided with a first water flow hole and a second water flow hole connected to the cavity. The water path connected to the first water flow hole and the flushing water port is kept normally open, and the valve core rotates to control the connection or closure of the water path between the second water flow hole and the siphon water port.

[0010] Optionally, the valve core is in the shape of a cone with a small upper end and a large lower end. The lower end of the valve core is clamped to the valve seat through a clamping block. A pressure ring is embedded in the bottom of the valve core. A spring is provided between the pressure ring and the valve seat. One end of the spring acts on the bottom of the valve core, and the other end acts on the top of the valve seat.

[0011] Optionally, a driving motor is provided at the bottom of the valve seat, and the output shaft of the driving motor passes through the valve seat and is connected to the middle of the bottom surface of the valve core. The pressure ring and the spring are located on the outside of the output shaft. A circle of grooves is provided around the valve seat, and a first sealing ring is embedded in the groove. A second sealing ring is pressed between the valve seat and the valve core.

[0012] Optionally, a water supply pipe is provided on the side wall of the guide pipe, the water inlet end of the water supply pipe is a water supply port, the water supply port is located above the flushing port, and the liquid level of the water supply port is higher than the liquid level inside the water tank.

[0013] Optionally, the water supply pipe is provided with an exhaust port, the exhaust port is connected to a float valve through a thin tube, the float valve is installed in the water tank, the float valve is provided with a water inlet hole and a water outlet hole, and the water outlet hole is connected to the water tank.

[0014] The utility model has the beneficial effects:

[0015] 1. In the utility model, a water tank is installed on the toilet bowl of the toilet to store water required for flushing. The guide pipe is vertically arranged in the water tank. A flushing port and a water replenishing port are arranged on the guide pipe. The flushing port is located at the lower end of the guide pipe. The flushing port pipeline intersects with the sewage outlet pipeline of the toilet bowl and is sealed and connected to the sewer. At the same time, a water inlet, a flushing water port and a siphon water port are arranged on the on-off valve. The flushing water port is a normally open water port. The flushing water port is connected to the flushing water path inside the toilet bowl. The water inlet of the on-off valve is connected to the water outlet end of the impeller pump. When the impeller pump is working, the impellers in the two pump water chambers rotate to suck water from the first inlet end and the second inlet end into the two pump water chambers respectively, and then transport it from the outlet flow channel to the outlet end, and finally transport it to the flushing water port and the siphon water port through the pipeline. The water replenishing port of the guide pipe is connected to the siphon water port of the on-off valve. The outlet transports water to the flushing waterway inside the toilet, which can then flush the inner wall of the toilet bowl. The debris and sewage inside the toilet are collected at the sewage outlet, and the water is flushed out by the flush outlet pipe, and then discharged to the intersection with the toilet sewage outlet pipe and flows away from the sewer, and negative pressure is generated at the intersection of the sewage outlet pipe and the flush outlet pipe, thereby sucking the sewage and debris inside the toilet out of the sewage outlet and discharged from the sewer. The greater the water volume of the flush outlet, the greater the negative pressure generated. The two inlet ends of the impeller pump increase the water absorption volume, thereby increasing the water volume output by the on-off valve. Therefore, the amount of water coming out of the flush outlet of the toilet is greater, and the negative pressure generated at the intersection of the flush outlet pipe and the sewage outlet pipe is greater, the water absorption capacity is stronger, and it is easier to suck the sewage and debris at the sewage outlet into the sewer, so that the sewage discharge effect of the toilet is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the system structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure when the impeller pump has one water outlet end;

[0018] Figure 3 It is a structural schematic diagram of an on-off valve having one water inlet;

[0019] Figure 4 The exploded structure diagram of the on-off valve has one water inlet;

[0020] Figure 5 Another schematic diagram of the system structure of the utility model;

[0021] Figure 6 It is a schematic diagram of the structure when the impeller pump has two water outlet ends;

[0022] Figure 7 It is a structural schematic diagram of an on-off valve having two water inlets;

[0023] Figure 8 This is an exploded structural diagram of an on-off valve with two water inlets.

[0024] Figure numerals: 01-first inlet end, 02-impeller, 03-rotating shaft, 04-impeller pump, 05-second inlet end, 06-first water outlet, 07-water outlet channel, 08-driving motor, 09-output shaft, 10-spring, 11-first sealing ring, 12-valve seat, 13-flushing water outlet, 14-first water hole, 15-valve body, 16-first water inlet, 17-valve core, 18-siphon water outlet, 19-pressure ring, 20-block, 21-second sealing ring, 22-second water hole, 23-water supply pipe, 24-groove, 25-exhaust port, 26-flow guide pipe, 27-float valve, 28-water inlet hole, 29-water outlet hole, 30-water supply port, 31-on-off valve, 32-third water outlet, 33-second water outlet, 34-third water inlet, 35-second water inlet, 36-flushing port, 37-pump water cavity. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0026] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example 1

[0029] An automatic flushing system for a toilet, comprising a flushing system arranged inside the toilet, the flushing system comprising a guide pipe 26, an impeller pump 04, and an on-off valve 31, wherein the impeller pump 04 and the guide pipe 26 are arranged in a water tank provided with the toilet, the guide pipe 26 is provided with a flushing port 36 and a water replenishing port 30, the flushing port 36 is located at the lower end of the guide pipe 26, the flushing port 36 pipeline intersects with the sewage outlet pipeline of the toilet and is sealed and connected to the sewer, the on-off valve 31 is provided with a water inlet, a flushing water port 13, and a siphon water port 18, the flushing water port 13 is a normally open water port, and the flushing water port 18 is provided. 3 is connected to the flushing water circuit in the toilet, the water replenishment port 30 is connected to the siphon water port 18, the water inlet of the on-off valve 31 is connected to the water outlet end of the impeller pump 04, and the impeller pump 04 has two pump water chambers 37 distributed relatively up and down, each pump water chamber 37 corresponds to an inlet end, and there are two inlet ends, namely the first inlet end 01 and the second inlet end 05. The two pump water chambers 37 are connected by the water outlet channel 07, and the water outlet end is connected to the water outlet channel 07. Impellers 02 are arranged in the pump water chambers 37, and the two impellers 02 are respectively connected to the two ends of the rotating shaft 03 of the impeller pump 04.

[0030] In this embodiment, a water tank (not shown in the figure) is installed on the toilet bowl of the toilet and is used to store water required for flushing. The guide pipe 26 is vertically arranged in the water tank. The guide pipe 26 is provided with a flushing port 36 and a water replenishing port 30. The flushing port 36 is located at the lower end of the guide pipe 26. The flushing port 36 pipeline intersects with the sewage outlet pipeline of the toilet bowl and is sealed and connected to the sewer. At the same time, the on-off valve 31 is provided with a water inlet, a flushing water port 13, and a siphon water port 18. The flushing water port 13 It is a normally open water outlet. The flushing water outlet 13 is connected to the flushing water path inside the toilet. The water inlet of the on-off valve 31 is connected to the water outlet of the impeller pump 04. When the impeller pump 04 is working, the impellers 02 in the two pump water chambers 37 rotate, and the water is sucked from the first inlet end 01 and the second inlet end 05 into the two pump water chambers 37 respectively, and then transported from the water outlet channel 07 to the water outlet, and finally transported to the flushing water outlet 13, the siphon water outlet 18, and the water replenishment port of the guide pipe 26 through the pipeline. The flushing water outlet 13 delivers water to the flushing waterway inside the toilet, so that the inner wall of the toilet can be flushed. The debris and sewage inside the toilet are collected at the sewage outlet. The water is flushed out from the flushing water outlet 36 pipeline, and then discharged to the intersection with the sewage outlet pipeline of the toilet and flows away from the sewer. Negative pressure is generated at the intersection of the sewage outlet pipeline and the flushing water outlet 36 pipeline, so that the sewage and debris inside the toilet are discharged by the drainage. The sewage outlet is sucked out and discharged into the sewer. The greater the water volume at the flush outlet 36, the greater the negative pressure generated. The two inlet ends of the impeller pump 04 increase the water absorption volume, thereby increasing the water volume output by the on-off valve 31. Therefore, the water volume coming out of the flush outlet 36 of the toilet is larger, and the negative pressure generated at the intersection of the flush outlet pipeline and the sewage outlet pipeline is greater. The water absorption capacity is stronger, and it is easier to suck the sewage and debris at the sewage outlet into the sewer, so that the sewage discharge effect of the toilet is better.

[0031] Example 2

[0032] Furthermore, the water outlet is provided with a first water outlet 06 , which is connected to one end of the water outlet channel 07 , and the on-off valve 31 is provided with a water inlet 16 which is connected to the first water outlet 06 .

[0033] Specifically, Figure 4 As shown, the impeller pump 04 has a water outlet end, which is a first water outlet 06. Figure 3 and Figure 2 As shown, a corresponding water inlet is also provided on the on-off valve 31, which is the first water inlet 16. The first water outlet 06 is connected to the first water inlet 16 pipeline. The two ends of the water outlet channel 07 inside the impeller pump 04 are respectively connected to the two pump water chambers 37. The water pumped out of the two pump water chambers 37 is collected at the first water outlet 06 to supply water to the on-off valve 31. The on-off valve 31 then supplies water to the flushing water outlet 13 and the siphon water outlet 18 respectively.

[0034] Example 3

[0035] Furthermore, the water outlet is provided with two, namely the second water outlet 33 and the third water outlet 32, the second water outlet 33 and the third water outlet 32 ​​are respectively connected to the two ends of the water outlet channel 07, and the on-off valve 31 is provided with two water inlets respectively connected to the second water outlet 33 and the third water outlet 32, namely the second water inlet 35 and the third water inlet 34.

[0036] Specifically, Figure 8 As shown, the impeller pump 04 has two water outlets, namely the second water outlet 33 and the third water outlet 32. The second water outlet 33 is located above the third water outlet 32. Figure 6 and Figure 7 As shown, the on-off valve 31 is provided with two water inlets, namely the second water inlet 35 and the third water inlet 34, which are connected with the second water outlet 33 and the third water outlet 32 ​​respectively. The water at the first inlet end 01 is transported to the third water outlet 32, and the third water outlet 32 ​​is connected to the third water inlet 34 pipeline on the on-off valve 31. The water at the second inlet end 05 is transported to the second water outlet 33, and the second water outlet 33 is connected to the second water inlet 35 pipeline on the on-off valve 31. The water from the second water inlet 35 and the third water inlet 34 are collected together, and the on-off valve 31 then supplies the water to the flushing water outlet 13 and the siphon water outlet 18 respectively.

[0037] Example 4

[0038] Furthermore, the on-off valve 31 includes a valve body 15, a valve core 17, and a valve seat 12. The water inlet, the siphon water port 18, and the flushing water port 13 are all arranged on the valve body 15. The valve core 17 is rotatably arranged in the valve body 15. The valve seat 12 is arranged at the bottom of the valve body 15 and seals the valve core 17 in the valve body 15. The valve seat 12 is bolted to the valve body 15. The siphon water port 18 and the flushing water port 13 are arranged opposite to each other. The middle part of the valve core 17 is a cavity, and the cavity is connected to the water inlet. The side wall of the valve core 17 is circumferentially provided with a first water through hole 14 and a second water through hole 22 connected to the cavity. The water path connected to the first water through hole 14 and the flushing water port 13 remains normally open, and the valve core 17 rotates to control the connection or closure of the water path between the second water through hole 22 and the siphon water port 18.

[0039] Specifically, Figure 2 and Figure 6As shown, the valve body 15 is the main part of the entire on-off valve 31, and the water inlet, siphon water port 18 and flushing water port 13 are all arranged on it. These interfaces are respectively connected to the water outlet end of the impeller pump 04, the water replenishment port 30 of the guide pipe 26 and the flushing system of the toilet. The valve core 17 is a key component of the on-off valve 31. It is rotatably arranged in the valve body 15. The rotation of the valve core 17 controls the on-off and flow direction of the water flow. The middle part of the valve core 17 is designed as a cavity, which is connected to the water inlet so that the pressurized water can enter the inside of the valve core 17. The valve seat 12 is provided The valve core 17 is placed at the bottom of the valve body 15, and the valve core 17 is enclosed in the valve body 15. This design ensures the stability and sealing of the valve core 17 during the rotation process. The valve seat 12 and the valve body 15 are connected by bolts, which is convenient for installation and disassembly, and also improves the reliability of the connection. The siphon water inlet 18 and the flushing water inlet 13 are arranged relatively on the valve body 15. This layout is conducive to optimizing the water flow path and reducing water flow resistance. The flushing water inlet 13 is designed as a normally open water inlet to ensure that when flushing is required, the water flow can smoothly flush the inner wall of the toilet. The side wall of the valve core 17 The first water hole 14 and the second water hole 22 connected to the cavity are arranged in the circumferential direction. The two water holes play a key role in the rotation process of the valve core 17. The water path connected to the flushing water port 13 by the first water hole 14 is kept open, which means that no matter how the valve core 17 rotates, the flushing water port 13 can obtain a stable water flow supply. The water path between the second water hole 22 and the siphon water port 18 is connected or closed by the rotation of the valve core 17. When the second water hole 22 is connected to the siphon water port 18, the water flow can flow into the water supply port 3 of the guide pipe 26. 0; When the second water hole 22 is closed, this water path is blocked. When the impeller pump 04 is working, pressurized water enters the cavity of the valve core 17 through the water inlet. No matter how the valve core 17 rotates, the first water hole 14 remains normally open, so that water always flows out of the flushing water outlet 13 for flushing. By rotating the valve core 17, it is possible to control whether the water path between the second water hole 22 and the siphon water outlet 18 is connected. When a large amount of flushing water is needed, the valve core 17 is rotated to the connected state. The normally open design of the flushing water outlet 13 ensures the reliability of the flushing function.

[0040] Furthermore, the valve core 17 is in the shape of a cone with a small upper end and a large lower end. The lower end of the valve core 17 is adapted to be clamped to the valve seat 12 through a clamping block 20. A pressure ring 19 is embedded in the bottom of the valve core 17. A spring 10 is provided between the pressure ring 19 and the valve seat 12. One end of the spring 10 acts on the bottom of the valve core 17, and the other end acts on the top of the valve seat 12.

[0041] Specifically, the valve core 17 is in the shape of a cone with a small upper end and a large lower end. This design helps to form a tighter seal between the valve core 17 and the valve seat 12. When the valve core 17 rotates to a closed position, the larger diameter at its lower end can better fit the valve seat 12, reducing the possibility of leakage and reducing the number of sealing rings on the valve core 17. This reduces the resistance of the valve core 17 during rotation, thereby reducing the load on the drive motor 08 and reducing the operating cost of the drive motor 08. The lower end of the valve core 17 is connected to the valve seat 12 through a clamping block 20. This clamping method not only ensures the stable rotation of the valve core 17 in the valve body 1558, but also prevents the valve core 17 from accidentally coming out or shifting when it is impacted by water flow. A pressure ring 19 is embedded at the bottom of the valve core 17. A spring 10 is arranged between the pressure ring 19 and the valve seat 12. One end of the spring 10 acts on the bottom of the valve core 17, and the other end acts on the top of the valve seat 12, forming an elastic support system. At the same time, the elastic force of the spring 1046 also helps to enhance the sealing effect between the valve core 17 and the valve seat 12 when the valve core 17 rotates to the closed position. When it is necessary to control the on and off of the water flow, the valve The core 17 rotates in the valve body 15, and the rotation of the valve core 17 will change the relative position relationship between the first water through hole 14 and the second water through hole 22 and the siphon water outlet 18 and the flushing water outlet 13. When the valve core 17 rotates to the position where the second water through hole 22 is connected to the siphon water outlet 18, water can enter the cavity of the valve core 17 through the water inlet, and then flow into the siphon water outlet 18 through the second water through hole 22. When the valve core 17 rotates to the closed position, the second water through hole 22 is closed, and water cannot flow into the siphon water outlet 18; at the same time, due to the conical shape of the valve core 17 and the elastic force of the spring 10, a tight seal is formed between the valve core 17 and the valve seat 12 to prevent water leakage.

[0042] Furthermore, a driving motor 08 is provided at the bottom of the valve seat 12, and an output shaft 09 of the driving motor 08 passes through the valve seat 12 and is connected to the middle of the bottom surface of the valve core 17. The pressure ring 19 and the spring 10 are located on the outside of the output shaft 09. The valve seat 12 is circumferentially provided with a circle of grooves 24, and a first sealing ring 11 is embedded in the groove 24. A second sealing ring 21 is pressed between the valve seat 12 and the valve core 17.

[0043] Specifically, Figure 2 and Figure 6As shown, a driving motor 08 is provided at the bottom of the valve seat 12, and the rotation of the valve core 17 can be automatically controlled by electric drive. The output shaft 09 of the driving motor 08 passes through the valve seat 12 and is connected to the middle part of the bottom surface of the valve core 17, directly providing power for the rotation of the valve core 17. This connection method ensures the effective transmission of power and the precise control of the rotation of the valve core 1753. Bearings are installed at both ends of the output shaft 09. The pressure ring 19 and the spring 10 are located on the outside of the output shaft 09 of the driving motor 08. They act together on the bottom of the valve core 17 to provide stable support and buffering for the valve core 17. The presence of the spring 1046 can also offset the influence of water flow impact on the valve core 17 to a certain extent, thereby improving the stability and durability of the valve. The valve seat 12 is provided with a circumferential The first sealing ring 11 is embedded in the groove 24. This design increases the sealing area and sealing effect between the valve seat 12 and the valve body 15 or other components, and prevents water from leaking out from the gap between the valve seat 12 and the valve body 1558. The first sealing ring 11 is usually made of wear-resistant and corrosion-resistant materials to ensure its long-term reliability and sealing performance. In addition to the first sealing ring 11, a second sealing ring 21 is also pressed between the valve seat 12 and the valve core 17. This double sealing design further improves the sealing performance of the valve, ensuring that a good sealing effect can be maintained even under high-pressure water flow. The second sealing ring 21 also needs to be made of high-quality materials to cope with various harsh operating environments and water conditions. When it is necessary to control the on and off of the water flow, the driving motor 08 receives the signal and starts working, and its output shaft 09 drives the valve core 17 to rotate in the valve body 15. The rotation of the valve core 17 will change the relative position relationship between the first water hole 14 and the second water hole 22 and the siphon water outlet 18 and the flushing water outlet 13, thereby realizing the on and off control of the water flow. During the whole process, the pressure ring 19, the spring 10, the first sealing ring 11 and the second sealing ring 21 work together to provide stable support and sealing for the valve, ensuring the normal operation and long-term use of the valve.

[0044] Example 5

[0045] Furthermore, a water supply pipe 23 is provided on the side wall of the guide pipe 26, and the water inlet end of the water supply pipe 23 is a water supply port 30. The water supply port 30 is located above the flushing port 36, and the liquid level of the water supply port 30 is higher than the liquid level inside the water tank.

[0046] Specifically, the liquid level of the water replenishment port 30 is higher than the liquid level inside the water tank, which prevents the liquid in the water tank from continuing to be discharged from the guide pipe 26 after the impeller pump 04 stops working, causing the toilet to continue to flow when there is no need to flush, thereby effectively saving water resources.

[0047] Example 6

[0048] Furthermore, the water supply pipe 23 is provided with an exhaust port 25, and the exhaust port 25 is connected to a float valve 27 through a thin tube. The float valve 27 is installed in the water tank, and the float valve 27 is provided with a water inlet hole 28 and a water outlet hole 29, and the water outlet hole 29 is connected to the water tank.

[0049] Specifically, Figure 1 and Figure 5 As shown, an upward exhaust port 25 is provided on the side wall of the water supply pipe 23. The main function of the exhaust port 25 is to allow air to enter the water supply pipe 23, thereby preventing negative pressure or vacuum from being generated during the water pumping or water supply process, and ensuring smooth water flow. The exhaust port 25 is connected to the float valve 27 in the toilet through a thin tube. When water enters the water supply pipe 23, it can prevent water from flowing out of the exhaust port 25 to the outside of the toilet; the float valve 27 is provided with a water inlet hole 28, and the float valve 27 is also provided with a water outlet hole 29, which is connected to the water tank. The inner cavity is connected. Under normal circumstances, the water outlet 29 is in a closed state. However, when the water level in the water tank drops to a certain level, the float valve 27 will automatically open the water outlet 29 to replenish the water. When the water level in the water tank is normal, the float (or float ball) of the float valve 27 rises due to the buoyancy, closing the water outlet 29. When the water level in the water tank drops (such as due to flushing), the buoyancy of the float decreases, and the water outlet 29 of the float valve 27 automatically opens until the water level rises to a normal level again.

[0050] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. An automatic flushing system for a toilet, comprising a flushing system arranged inside the toilet, characterized in that: The flushing system comprises a flow guide pipe (26), an impeller pump (04), and an on-off valve (31). The impeller pump (04) and the flow guide pipe (26) are arranged in a water tank provided with the toilet. The flow guide pipe (26) is provided with a flushing port (36) and a water replenishing port (30). The flushing port (36) is located at the lower end of the flow guide pipe (26). The flushing port (36) pipeline intersects with the sewage outlet pipeline of the toilet and is sealedly connected to the sewer. The on-off valve (31) is provided with a water inlet, a flushing water port (13), and a siphon water port (18). The flushing water port (13) is a normally open water port. The flushing water port (13) is connected to the flushing water path in the toilet. The water replenishment port (30) is connected to the siphon water port (18), the water inlet of the on-off valve (31) is connected to the water outlet of the impeller pump (04), the impeller pump (04) has two pump water chambers (37) which are relatively distributed up and down, each pump water chamber (37) corresponds to an inlet end, there are two inlet ends, namely a first inlet end (01) and a second inlet end (05), the two pump water chambers (37) are connected by a water outlet channel (07), the water outlet end is connected to the water outlet channel (07), and the pump water chamber (37) is provided with an impeller (02), and the two impellers (02) are respectively connected to the two ends of the rotating shaft (03) of the impeller pump (04).

2. The automatic flushing system for a toilet according to claim 1, characterized in that: The water outlet end is provided with a first water outlet (06), which is connected to one end of the water outlet channel (07); the on-off valve (31) is provided with a water inlet connected to the first water outlet (06), which is the first water inlet (16).

3. The automatic flushing system for a toilet according to claim 1, characterized in that: The water outlet is provided with two, namely a second water outlet (33) and a third water outlet (32), the second water outlet (33) and the third water outlet (32) are respectively connected to the two ends of the water outlet channel (07), and the on-off valve (31) is provided with two water inlets respectively connected to the second water outlet (33) and the third water outlet (32), namely a second water inlet (35) and a third water inlet (34).

4. The automatic flushing system for a toilet according to claim 1, characterized in that: The on-off valve (31) comprises a valve body (15), a valve core (17), and a valve seat (12); a water inlet, a siphon water inlet (18), and a flushing water inlet (13) are all arranged on the valve body (15); the valve core (17) is rotatably arranged in the valve body (15); the valve seat (12) is arranged at the bottom of the valve body (15) and seals the valve core (17) in the valve body (15); the valve seat (12) is bolted to the valve body (15); the siphon water inlet (18) and the flushing water inlet (13) are all arranged on the valve body (15); The valve core (17) is provided with a cavity in the middle thereof, and the cavity is connected to the water inlet. A first water passage hole (14) and a second water passage hole (22) connected to the cavity are provided in the circumferential direction of the side wall of the valve core (17). The water passage connecting the first water passage hole (14) and the flushing water outlet (13) is kept open. The valve core (17) rotates to control the water passage between the second water passage hole (22) and the siphon water outlet (18) to be connected or closed.

5. The automatic flushing system for a toilet according to claim 4, characterized in that: The valve core (17) is in the shape of a cone with a small upper end and a large lower end. The lower end of the valve core (17) is adapted to be clamped with the valve seat (12) via a clamping block (20). A pressure ring (19) is embedded in the bottom of the valve core (17). A spring (10) is provided between the pressure ring (19) and the valve seat (12). One end of the spring (10) acts on the bottom of the valve core (17), and the other end acts on the top of the valve seat (12).

6. The automatic flushing system for a toilet according to claim 4, characterized in that: A driving motor (08) is provided at the bottom of the valve seat (12); an output shaft (09) of the driving motor (08) passes through the valve seat (12) and is connected to the middle of the bottom surface of the valve core (17); a pressure ring (19) and a spring (10) are located outside the output shaft (09); a circle of grooves (24) are provided around the valve seat (12); a first sealing ring (11) is embedded in the groove (24); and a second sealing ring (21) is pressed between the valve seat (12) and the valve core (17).

7. The automatic flushing system for a toilet according to claim 1, characterized in that: A water replenishment pipe (23) is provided on the side wall of the flow guide pipe (26), the water inlet end of the water replenishment pipe (23) is a water replenishment port (30), the water replenishment port (30) is located above the flushing port (36), and the liquid level of the water replenishment port (30) is higher than the liquid level inside the water tank.

8. The automatic flushing system for a toilet according to claim 7, characterized in that: The water supply pipe (23) is provided with an exhaust port (25), the exhaust port (25) is connected to a float valve (27) via a thin tube, the float valve (27) is installed in the water tank, the float valve (27) is provided with a water inlet hole (28) and a water outlet hole (29), and the water outlet hole (29) is connected to the water tank.

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