Fresh air circulation self-cleaning squatting pan and use method thereof

Abstract

The invention discloses a fresh air circulation self-cleaning squatting pan and a using method thereof, and belongs to the technical field of squatting pans. One end of a squatting pan body is provided with a water tank, a urinal is provided with a water supply channel and an air supply channel, a drainage port is formed in the urinal and communicated with the water supply channel, and one end of the urinal is provided with an air blowing port communicated with the air supply channel; the air supply channel is connected with an external air supply system, and a first cleaning hole is formed in the upper portion of the air blowing opening and communicates with the water supply channel. A drainage assembly and a water inlet assembly are arranged in the water tank, the drainage assembly is communicated with the water supply channel, the water inlet assembly is communicated with an external water supply system, an air suction opening is formed in the side wall, close to the urinal, of the upper portion of the water tank and connected with an external air suction system, and a second cleaning hole is formed in the upper portion of the air suction opening and communicated with the water inlet assembly. The air blowing opening and the air suction opening are synergistically and automatically cleaned while water supply and drainage of the water tank are achieved, sanitary dead corners of the squatting pan are reduced, and the problems of peculiar smell residues and sanitary pollution are solved.

Description

Technical Field

[0001] This invention relates to the field of squat toilet technology, specifically to a ventilated, self-cleaning squat toilet and its usage method. Background Technology

[0002] As a basic sanitation facility in public places, the control of odor and cleaning and maintenance of squat toilets during use has always been a technical focus.

[0003] Among the existing technologies, there are already improved solutions for odor control. For example, Chinese utility model patent application number 201220205316.0 provides a squat toilet ventilation device, which sets the exhaust pipe behind the toilet bowl to extract odors and sets the air curtain spray pipe at the front of the toilet bowl to blow air, thereby reducing the diffusion of odors. However, this solution has certain problems:

[0004] First, the air intake of the exhaust pipe and the air blower of the air curtain nozzle are exposed to the toilet bowl environment for a long time, making them very easy to accumulate dust, bacteria and aerosols. Over time, this will cause the air intake to become blocked, the airflow to be obstructed, and it will become a new source of pollution, emitting odors and even breeding microorganisms. Users often need to disassemble the parts regularly for manual cleaning, which is a cumbersome process and the cleaning effect is difficult to guarantee.

[0005] In addition, urine can easily splash onto the corner behind the toilet bowl or the corner where it is installed with the water tank. Existing toilet flushing methods can only flush the inside of the toilet bowl and cannot clean the corner above the toilet bowl. Although it can be cleaned regularly by hand, if it is not cleaned in time, there will still be unsanitary corners that emit odors, which will further affect the toilet experience. Summary of the Invention

[0006] To address the problems existing in the prior art, this invention provides a fresh air circulation self-cleaning squat toilet and its usage method, which realizes the simultaneous automatic cleaning of the air outlet and air intake while the water tank is being drained, and reduces the sanitary dead corners of the squat toilet, thereby solving the problems of odor residue and hygiene pollution.

[0007] The technical solution of the present invention is as follows: In a first aspect of the present invention, a fresh air circulation self-cleaning squat toilet is provided, comprising a squat toilet body, a water tank at one end of the squat toilet body, a water supply channel and an air supply channel at the toilet bowl of the squat toilet body, a plurality of drain outlets connected to the water supply channel inside the toilet bowl, a plurality of air blowers connected to the air supply channel at the end of the toilet bowl away from the water tank, the air supply channel being connected to an external air supply system, and a first cleaning hole at the upper part of each of the plurality of air blowers, the first cleaning hole being connected to the water supply channel; The water tank is equipped with a drainage component and a water inlet component. The drainage component is connected to the water supply channel, and the water inlet component is connected to the external water supply system. The upper part of the water tank near the toilet bowl has several air intakes, which are connected to the external air intake system. The upper part of each of the air intakes has a second cleaning hole, which is connected to the water inlet component.

[0008] In some embodiments of the present invention, the drainage rate of the drainage component is greater than the inlet rate of the inlet component.

[0009] In some embodiments of the present invention, the lower part of the water tank is provided with a drainage cavity, the drainage assembly is connected to the drainage cavity, the drainage cavity is provided with a water inlet pipe, one end of the water inlet pipe is connected to the lower part of the water inlet assembly, and the other end of the water inlet pipe is connected to an external water supply system; the drainage cavity is connected to a water supply channel.

[0010] In some embodiments of the present invention, a drain valve is provided at the location where the drain assembly communicates with the drain cavity, and a first sealing structure is provided at the installation location of the drain valve. A water inlet valve is provided at the location where the water inlet assembly is connected to the water inlet pipe, and a second sealing structure is provided at the installation location of the water inlet valve. An infrared sensing module is provided outside the water tank, and the infrared sensing module is used to control the opening and closing of the water inlet valve and the drain valve.

[0011] In some embodiments of the present invention, the bottom of the water inlet assembly is connected to a water inlet pipe, the upper part of the water inlet assembly is provided with a water replenishment chamber, one side of the water replenishment chamber is connected to a water replenishment pipe, the opening of the water replenishment pipe faces downward and communicates with the inside of the water tank, the other side of the water replenishment chamber is connected to a flushing pipe, the flushing pipe is connected to a plurality of second cleaning holes, and a floating switch mechanism is provided between the water replenishment chamber and the water inlet assembly.

[0012] In some embodiments of the present invention, the floating switch mechanism includes a slot structure, a needle valve, and a float. The slot structure is disposed between the water replenishment chamber and the water inlet assembly. The needle valve is disposed at the slot structure. The bottom of the needle valve is engaged with the slot structure. The top of the needle valve is connected to the float via a connecting rope. The float is disposed above the liquid surface in the water tank.

[0013] In some embodiments of the present invention, the second cleaning hole is inclined downward toward the air intake.

[0014] In some embodiments of the present invention, the connection point between the squat toilet body and the water tank is configured as a concave spherical arc surface.

[0015] In some embodiments of the present invention, ventilation grilles are provided at the plurality of air intakes.

[0016] In a second aspect of the invention, a method of using a fresh air circulation self-cleaning squat toilet is provided, comprising: When the infrared sensor module detects a person approaching, it controls the drain valve and the inlet valve to open. The drain assembly discharges the water stored in the tank into the drain chamber. Some water flows through the water supply channel and into the toilet bowl through the drain outlet. Some water flows out through the first cleaning hole at one end of the toilet bowl to clean the surface of the air blower. After the inlet valve is opened, the inlet assembly supplies water to the water tank through the external water supply system. Since the drainage rate of the drainage assembly is greater than the inlet rate of the inlet assembly, the water level in the water tank drops, and the float falls with the liquid level. It drives the needle valve to rise through the connecting rope and thus leave the slot structure. Part of the water flows through the water replenishment chamber to the water replenishment pipe to replenish the water tank, and part of the water flows through the flushing pipe to the second cleaning hole to clean the air intake. After the drain valve opens for a set time, it closes. The water inlet assembly supplies water to the water tank, causing the liquid level to rise. The float rises with the rising liquid level and drives the needle valve to descend via the connecting rope, thus engaging with the slot structure. Water no longer enters the water replenishment chamber, the water tank stops replenishing water, and the second cleaning hole stops flowing and rinsing the air intake.

[0017] One or more technical solutions of the present invention have the following beneficial effects: This invention provides a self-cleaning squat toilet with fresh air circulation and its usage method. A first flushing hole is provided above the air outlet at one end of the toilet bowl, and a second flushing hole is provided above the air intake on the side wall of the water tank. When the squat toilet is working, the water flow is not only used to flush the toilet bowl, but also automatically cleans the surfaces of the air outlet and air intake. This design ensures that the air outlet and air intake are always clean, effectively preventing bacterial adhesion and aerosol accumulation. It eliminates the spread of odors and airflow obstruction caused by contamination of the air outlet and air intake from the source. Users no longer need to manually disassemble and clean it, greatly improving maintenance convenience and hygiene.

[0018] By designing the connection between the squat toilet body and the water tank as a concave spherical arc surface, dead corners at the connection point are reduced, making it difficult for urine or water stains to accumulate. At the same time, the second cleaning hole is tilted downwards towards the air intake. After rinsing the surface of the air intake, the water flowing out will flow through the concave spherical arc surface to clean the connection point. The cleaned water will eventually flow into the toilet bowl. This achieves the dual effect of cleaning both the air intake and the connection between the squat toilet body and the water tank with a single water flow from the second cleaning hole. It makes efficient use of water resources, completely eliminates the hygiene dead corners that are easily overlooked in traditional squat toilets, avoids odors, and reduces the frequency of manual cleaning.

[0019] In addition, by setting up a water tank and storing water for a long time, and setting the water volume according to actual conditions, the water volume can meet the needs of one flush. When the external water supply system is interrupted, the water stored in the tank can be drained through the drainage component to flush the inside of the toilet bowl, solving the problem of the toilet bowl being unable to flush out the dirt caused by water outage, and further ensuring the hygiene and cleanliness of the toilet. Attached Figure Description

[0020] Figure 1 This is a top view of the external structure of a fresh air circulation self-cleaning squat toilet provided in Embodiment 1 of the present invention; Figure 2 The present invention provided in Embodiment 1 Figure 1 AA section view in the middle; Figure 3 The present invention provided in Embodiment 1 Figure 1 BB section view in the middle; Figure 4 The present invention provided in Embodiment 1 Figure 1 CC section view in the middle; Figure 5 The present invention provided in Embodiment 1 Figure 1 DD section view in the image.

[0021] In the diagram: 1. Squat toilet body; 2. Toilet bowl; 3. Drain outlet; 4. Anti-slip structure; 5. Water tank; 6. Drainage assembly; 7. Drain valve; 8. Water inlet pipe; 9. Water inlet valve; 10. Water inlet assembly; 11. Water supply pipe; 12. Water supply hole; 13. Needle valve; 14. Flushing pipe; 15. Float ball; 16. T-joint nested fitting; 1601. Exhaust pipe; 1602. Air supply pipe; 17. First cleaning hole; 18. Air intake; 19. Air supply channel; 20. Second cleaning hole; 21. Drain outlet; 22. Water supply channel; 23. Air blower. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1 In a typical embodiment of the present invention, such as Figures 1 to 5 As shown, a new air circulation self-cleaning squat toilet is proposed, including a squat toilet body 1, a water tank 5 at one end of the squat toilet body 1, a water supply channel 22 and an air supply channel 19 at the toilet bowl 2 part of the squat toilet body 1, a number of drain outlets 21 inside the toilet bowl 2 connected to the water supply channel 22, a number of air outlets 23 at the end of the toilet bowl 2 away from the water tank 5 connected to the air supply channel 19, the air supply channel 19 is connected to an external air supply system, and a first cleaning hole 17 is provided on the upper part of the number of air outlets 23, the first cleaning hole 17 is connected to the water supply channel 22; The water tank 5 is equipped with a drainage component 6 and a water inlet component 10. The drainage component 6 is connected to the water supply channel 22, and the water inlet component 10 is connected to the external water supply system. The upper part of the water tank 5 near the side wall of the toilet bowl 2 is provided with several air intakes 18, which are connected to the external air intake system. The upper part of each of the air intakes 18 is provided with a second cleaning hole 20, which is connected to the water inlet component 10.

[0024] The toilet bowl 2 has a drain outlet 21 connected to the water supply channel 22 to ensure that the flushing water covers the surface of the toilet bowl 2. The end of the toilet bowl 2 away from the water tank 5 has a blower 23 connected to the air supply channel 19. An air curtain is formed through the external air supply system to effectively block the spread of odors. The first cleaning hole 17 set at the top of the blower 23 is connected to the water supply channel 22, which can automatically clean the surface of the blower 23 during the flushing process, preventing dust, bacteria and aerosols from adhering and avoiding blockage and contamination of the blower 23.

[0025] The water tank 5 is equipped with a drainage component 6 and a water inlet component 10, which are connected to the water supply channel 22 and the external water supply system, respectively, to ensure the stability of water supply and discharge. The upper part of the water tank 5 is provided with a suction port 18 near the toilet bowl 2, which is connected to the external suction system to remove odors from the toilet bowl 2. The second cleaning hole 20 provided on the upper part of the suction port 18 is connected to the water inlet component 10. When in use, the suction port 18 can be automatically cleaned by water filling the water tank 5, and the cleaning will automatically end when the water filling of the water tank 5 stops, ensuring effective cleaning of the suction port 18 while saving water.

[0026] A water tank 5 is installed to store water for an extended period. The water volume is set according to actual conditions. In this embodiment, the water volume is set to 10L to meet the needs of one flush. When the external water supply system is interrupted, the water stored in the water tank 5 can be drained through the drainage component to flush the inside of the toilet bowl, solving the problem of the inability to flush the dirt inside the toilet bowl due to water outage, and further ensuring the hygiene and cleanliness of the toilet.

[0027] In this embodiment, the drainage rate of the drainage component 6 is greater than the water inlet rate of the water inlet component 10. This configuration ensures that the water level in the water tank 5 can effectively drop during the rinsing process, thereby triggering the floating switch mechanism. The drop in water level causes the float 15 to descend with the liquid level. Through the linkage between the float 15 and the needle valve 13, the water replenishment channel at the slot structure is opened. Part of the water flow is used to clean the air intake 18, and the other part is used to replenish the water tank 5. This achieves automated control of the cleaning process of the second cleaning hole 20. No external power or complex sensors are required. The self-cleaning function can be activated solely by the difference in water flow rates, saving energy and improving reliability. At the same time, it avoids the cleaning failure problem caused by the water level in the water tank 5 being balanced due to the same drainage and water inlet rates.

[0028] In this embodiment, the lower part of the water tank 5 is provided with a drainage cavity, the drainage component 6 is connected to the drainage cavity, the drainage cavity is provided with a water inlet pipe 8, one end of the water inlet pipe 8 is connected to the lower part of the water inlet component 10, and the other end of the water inlet pipe 8 is connected to an external water supply system; the drainage cavity is connected to the water supply channel 22.

[0029] The water inlet pipe 8 is independently installed in the drainage cavity and connected to the water inlet component 10, ensuring water inlet stability. It is separate from the water supply channel 22, ensuring that drainage and water inlet do not interfere with each other. After the drainage component 6 discharges water into the drainage cavity, some water flows through the water supply channel 22 to the toilet bowl 2 drain outlet 21 and the first flushing hole, achieving flushing of the toilet bowl 2 and cleaning of the air blower 23. This optimizes the water flow distribution path, improves water utilization efficiency, ensures flushing of the toilet bowl 2, and further automates the cleaning process of the second cleaning hole 20, reducing water waste.

[0030] In this embodiment, a drain valve 7 is provided at the position where the drain assembly 6 communicates with the drain cavity, and a first sealing structure is provided at the installation position of the drain valve 7. A water inlet valve 9 is provided at the position where the water inlet assembly 10 is connected to the water inlet pipe 8, and a second sealing structure is provided at the installation position of the water inlet valve 9. An infrared sensing module is provided on the outside of the water tank 5. The infrared sensing module is used to control the opening and closing of the water inlet valve 9 and the drain valve 7.

[0031] When the infrared sensor module detects a person approaching, it automatically opens the drain valve 7 and the water inlet valve 9. Users can complete the cleaning process of the toilet bowl 2 (flushing), the first cleaning hole 17, and the second cleaning hole 20) without touching the toilet, ensuring the cleanliness of the toilet bowl 2, the air outlet 23, and the air intake 18, greatly improving hygiene and convenience. The first and second sealing structures ensure the tightness of the drain valve 7 and the water inlet valve 9 when closed, preventing leakage.

[0032] In this embodiment, the bottom of the water inlet assembly 10 is connected to the water inlet pipe 8, and the upper part of the water inlet assembly 10 is provided with a water replenishment cavity. One side of the water replenishment cavity is connected to the water replenishment pipe 11, and the opening of the water replenishment pipe 11 faces downward and is connected to the inside of the water tank 5. The other side of the water replenishment cavity is connected to the flushing pipe 14, and the flushing pipe 14 is connected to several second cleaning holes 20. A floating switch mechanism is provided between the water replenishment cavity and the water inlet assembly 10.

[0033] When the water level in the water tank 5 changes, the floating switch mechanism controls the water inlet state of the water replenishment chamber. The water replenishment chamber is equipped with a water replenishment hole 12 connected to a water replenishment pipe 11. Part of the water flows through the water replenishment pipe 11 to replenish the water tank 5, and part of the water flows through the flushing pipe 14 and through the second cleaning hole 20 to clean the air intake 18. This achieves the coordinated operation of cleaning the air intake 18 and replenishing the water tank 5. At the same time, after the water tank 5 is replenished, the second cleaning hole 20 can be automatically stopped, ensuring that the air intake 18 can be cleaned in time after each use, preventing bacterial growth and odor, and saving water resources. In addition, the design of the water replenishment chamber also plays a role in water flow buffering, avoiding the impact of water pressure fluctuations on the cleaning effect.

[0034] In this embodiment, the floating switch mechanism includes a slot structure, a needle valve 13, and a float 15. The slot structure is disposed between the water replenishment chamber and the water inlet assembly 10. The needle valve 13 is disposed at the slot structure. The bottom of the needle valve 13 is engaged with the slot structure. The top of the needle valve 13 is connected to the float 15 via a connecting rope. The float 15 is disposed above the liquid surface in the water tank 5.

[0035] The float ball 15 rises and falls with the liquid level in the water tank 5, driving the needle valve 13 to move up and down at the slot structure, thereby controlling the opening and closing of the water replenishment chamber. Through the above-mentioned simple and low-cost linkage mechanism, precise control of water replenishment in the water tank 5 can be achieved without electricity or electronic components, and it is ensured that the second flushing hole only works when needed, saving water resources and extending the service life of the components.

[0036] In this embodiment, the second cleaning hole 20 is inclined downward toward the air intake 18. This arrangement allows water to flow effectively over the surface of the air intake 18 through the second cleaning hole 20, effectively washing away any adhering substances on the air intake 18, preventing the accumulation of dirt on the air intake 18 due to long-term use, maintaining smooth airflow and hygiene, and the downward inclination of the second cleaning hole 20 avoids water splashing and prevents water from flowing directly into the air intake 18. Furthermore, the air intake 18 and the air outlet 23 are arranged opposite each other, which can form an effective circulating air curtain to prevent the spread of odors from the toilet bowl 2 area.

[0037] In this embodiment, the connection between the water tank 5 at the lower part of the second cleaning hole 20 and the squat toilet body 1 is set as a concave spherical arc surface structure.

[0038] The two sides of the concave spherical arc surface are consistent with the width of the water tank 5. At the same time, the two sides of the concave spherical arc surface structure can extend towards the toilet bowl 2, forming an arc plate on each side of the toilet bowl 2. This allows water flowing out from the second cleaning hole 20 to flow into the toilet bowl 2 from between the two arc plates. The space between the two arc plates is set as a concave spherical arc surface, which reduces the dead angle at the connection between the squat toilet body 1 and the water tank 5, making it difficult for urine or water stains to accumulate.

[0039] With the above settings, the water flowing out of the second cleaning hole 20 can clean the air intake 18 while also cleaning the concave arc-shaped spherical surface. The cleaned water flows into the toilet bowl 2, thus achieving simultaneous cleaning of the air intake 18, the water tank 5, and the connection point of the squat toilet body 1 with a single water flow from the second cleaning hole 20. This efficiently utilizes water resources, ensures the cleanliness of the squat toilet during use, avoids the problem of dead corners at the connection points, and reduces the frequency of manual cleaning. In addition, the two arc-shaped plates can have a certain converging effect on the circulating air formed by the air blower 23 and the air intake 18.

[0040] In this embodiment, ventilation grilles are provided at several air intakes 18. The ventilation grille structure can prevent larger debris from entering the air intake duct, preventing blockage, while also evenly distributing airflow and improving air intake efficiency. In addition, the ventilation grille can prevent water from the second cleaning hole 20 from flowing directly into the air intake 18, keeping the duct clean. It is understood that even if a small amount of water drips into the duct of the air intake 18, it will only reach the key port of the nested three-way valve, and because the duct is frequently ventilated, the small amount of water will evaporate in time and will not cause any additional impact.

[0041] The ventilation grille can be detachably connected to the water tank 5 via a threaded connection, and can be disassembled and cleaned after a period of use, saving time and effort.

[0042] In this embodiment, the water tank 5 is equipped with a three-way nested pipe fitting 16, which includes an exhaust pipe 1601 and an air supply pipe 1602. One end of the air supply pipe 1602 extends into the interior of the exhaust pipe 1601 to form a coaxial double-layer pipe structure. The other ends of the exhaust pipe 1601 and the air supply pipe 1602 are separately arranged. The exhaust pipe 1601 is connected to the air intake 18, and the air supply pipe 1602 is connected to the air supply channel 19, so that the exhaust and air supply do not affect each other. Figure 3 As shown, there are three air intakes 18, and all three air intakes 18 are located within the ventilation area of ​​the exhaust pipe 1601.

[0043] The drain outlet 3 of the toilet bowl is located away from the air outlet 23 to prevent the air outlet 23 from being contaminated during the flushing process. The upper sides of the toilet bowl 2 are equipped with anti-slip structures 4 to increase friction and ensure stability and safety for users.

[0044] In a second aspect of the invention, a method of using a fresh air circulation self-cleaning squat toilet is provided, comprising: When the infrared sensor module detects a person approaching, it controls the drain valve 7 and the inlet valve 9 to open. The drain assembly 6 discharges the water stored in the water tank 5 into the drain cavity. Some water flows through the water supply channel 22 and through the drain outlet 21 into the toilet bowl 2. Some water flows out through the first cleaning hole 17 at one end of the toilet bowl 2 to clean the surface of the air blower 23. After the inlet valve 9 is opened, the inlet assembly 10 supplies water to the water tank 5 through the external water supply system. Since the drainage rate of the drainage assembly 6 is greater than the inlet rate of the inlet assembly 10, the water level in the water tank 5 drops, and the float ball 15 drops with the liquid level. It drives the needle valve 13 to rise through the connecting rope and thus leave the slot structure. Part of the water flows through the water replenishment chamber to the water replenishment pipe 11 to replenish water to the water tank 5, and part of the water flows through the flushing pipe 14 to the second cleaning hole 20 to perform flow cleaning on the air intake 18. After the drain valve 7 is opened for a set time, it closes. The water inlet assembly 10 supplies water to the water tank 5, causing the liquid level to rise. The float 15 rises with the liquid level and drives the needle valve 13 to descend via the connecting rope, thereby engaging with the slot structure. Water no longer enters the water replenishment chamber, the water tank 5 stops replenishing water, and the second cleaning hole 20 stops flowing and rinsing the air intake 18.

[0045] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A fresh air circulation self-cleaning squat toilet, characterized in that, The toilet includes a squat toilet body, one end of which is provided with a water tank. The toilet bowl of the squat toilet body is provided with a water supply channel and an air supply channel. The toilet bowl is provided with several drain outlets connected to the water supply channel. The end of the toilet bowl away from the water tank is provided with several air blowers connected to the air supply channel. The air supply channel is connected to an external air supply system. The upper part of each of the several air blowers is provided with a first cleaning hole, which is connected to the water supply channel. The water tank is equipped with a drainage component and a water inlet component. The drainage component is connected to the water supply channel, and the water inlet component is connected to the external water supply system. The upper part of the water tank near the toilet bowl has several air intakes, which are connected to the external air intake system. The upper part of each of the air intakes has a second cleaning hole, which is connected to the water inlet component.

2. The fresh air circulation self-cleaning squat toilet as described in claim 1, characterized in that, The drainage rate of the drainage component is greater than the inlet rate of the inlet component.

3. The fresh air circulation self-cleaning squat toilet as described in claim 1, characterized in that, The lower part of the water tank is provided with a drainage cavity, the drainage component is connected to the drainage cavity, the drainage cavity is provided with a water inlet pipe, one end of the water inlet pipe is connected to the lower part of the water inlet component, and the other end of the water inlet pipe is connected to an external water supply system; the drainage cavity is connected to the water supply channel.

4. A fresh air circulation self-cleaning squat toilet as described in claim 3, characterized in that, A drain valve is provided at the location where the drain assembly communicates with the drain cavity, and a first sealing structure is provided at the installation location of the drain valve. A water inlet valve is provided at the location where the water inlet assembly connects with the water inlet pipe, and a second sealing structure is provided at the installation location of the water inlet valve. An infrared sensing module is provided outside the water tank, and the infrared sensing module is used to control the opening and closing of the water inlet valve and the drain valve.

5. A fresh air circulation self-cleaning squat toilet as described in claim 3, characterized in that, The bottom of the water inlet assembly is connected to a water inlet pipe, and the upper part of the water inlet assembly is provided with a water replenishment chamber. One side of the water replenishment chamber is connected to a water replenishment pipe, and the opening of the water replenishment pipe faces downward and is connected to the inside of the water tank. The other side of the water replenishment chamber is connected to a flushing pipe, and the flushing pipe is connected to several second cleaning holes. A floating switch mechanism is provided between the water replenishment chamber and the water inlet assembly.

6. A fresh air circulation self-cleaning squat toilet as described in claim 5, characterized in that, The floating switch mechanism includes a slot structure, a needle valve, and a float. The slot structure is located between the water replenishment chamber and the water inlet assembly. The needle valve is located at the slot structure, with its bottom engaging with the slot structure. The top of the needle valve is connected to the float via a connecting rope, and the float is positioned above the liquid level in the water tank.

7. A fresh air circulation self-cleaning squat toilet as described in claim 1, characterized in that, The second cleaning hole is tilted downwards toward the air intake.

8. A fresh air circulation self-cleaning squat toilet as described in claim 1, characterized in that, The connection point between the squat toilet body and the water tank is designed as a concave spherical arc surface.

9. A fresh air circulation self-cleaning squat toilet as described in claim 1, characterized in that, Ventilation grilles are provided at the aforementioned air intakes.

10. A method of using a fresh air circulation self-cleaning squat toilet as described in any one of claims 1-9, characterized in that, include: When the infrared sensor module detects a person approaching, it controls the drain valve and the inlet valve to open. The drain assembly discharges the water stored in the tank into the drain chamber. Some water flows through the water supply channel and into the toilet bowl through the drain outlet. Some water flows out through the first cleaning hole at one end of the toilet bowl to clean the surface of the air blower. After the inlet valve is opened, the inlet assembly supplies water to the water tank through the external water supply system. Since the drainage rate of the drainage assembly is greater than the inlet rate of the inlet assembly, the water level in the water tank drops, and the float falls with the liquid level. It drives the needle valve to rise through the connecting rope and thus leave the slot structure. Part of the water flows through the water replenishment chamber to the water replenishment pipe to replenish the water tank, and part of the water flows through the flushing pipe to the second cleaning hole to clean the air intake. After the drain valve opens for a set time, it closes. The water inlet assembly supplies water to the water tank, causing the liquid level to rise. The float rises with the rising liquid level and drives the needle valve to descend via the connecting rope, thus engaging with the slot structure. Water no longer enters the water replenishment chamber, the water tank stops replenishing water, and the second cleaning hole stops flowing and rinsing the air intake.

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