A high-pressure flushing device for a water-saving toilet with enhanced air and water gradation.

Abstract

This invention discloses a high-pressure flushing device for water-saving toilets with enhanced air-water separation, which can be used in conjunction with conventional toilets and is suitable for the construction or renovation of rural household toilets under the gray-black separation treatment model for village domestic sewage. It includes a water storage tank, an air-water separation pump, and conduits. The water storage tank includes a tank body and a lid. A conduit is installed on the outside of the tank body, and a nozzle and toilet connector are installed at the end of the conduit. The lid has a water inlet. The pressure rod of the air-water separation pump passes through the central opening of the lid. The pump body is fixed inside the tank body by a fixed bracket. The air chamber is located above the water chamber. Exhaust pipes and drain pipes are respectively connected to the conduit on the bottom side of the air chamber and water chamber, connecting to the outer conduit of the tank body. A movable seal is installed at the suction nozzle at the bottom of the water chamber, and a valve nozzle is installed at the connection between the water chamber and the drain pipe. All pipe interfaces of the device are connected using sealed connectors. This device uses very little water for flushing (0.2 to 0.3 liters / flush), has strong cleaning power, a simple structure, does not require underground burial, and is easy to install and use.

Description

Technical Field

[0001] This invention relates to the field of flushing equipment technology, and in particular to a high-pressure flushing device for a water-saving toilet with enhanced air and water gradation. Background Technology

[0002] Currently, the water-flushing toilets commonly used in rural areas employ a method of directly connecting the water pipe to the toilet tank or water inlet. When flushing is needed, the water valve is opened for a direct flow of water, and the valve is closed after flushing. According to research, this type of toilet uses 4-6L to 6-10L of water per flush, which not only consumes a large amount of clean water but also increases the cost of collecting and treating rural domestic sewage.

[0003] Ultra-efficient water-saving sanitary ware is a crucial black water collection unit in rural domestic sewage gray-black separation treatment models. Unlike urban sanitary ware (such as flush toilets), rural sanitary ware connects directly to septic tanks via inclined pipes, and the internal structures lack long horizontal pipes. Therefore, the design of sanitary ware does not require a large flush volume to avoid blockages. Consequently, rural water-saving sanitary ware should be more water-efficient than urban sanitary ware. The smaller flush volume significantly reduces the amount of black water and increases its concentration, effectively improving the efficiency of black water resource utilization. The ultra-low flush volume extends the septic tank cleaning cycle, significantly improves the harmlessness effect, reduces the amount of biogas slurry, and increases the nutrient concentration, thus reducing labor intensity. For applications requiring composting (such as in-situ fermentation bed composting), it can also meet the concentration requirements for composted manure.

[0004] Greywater / blackwater separation is a wastewater collection model that separates and treats wastewater at its source at the household level, and is an important prerequisite for rural wastewater treatment and resource utilization in my country. Blackwater refers to flushing water from toilets, containing a mixture of diluted urine, feces, and other pollutants, as well as high-concentration wastewater, characterized by small volume and high pollutant concentration. Greywater refers to other domestic wastewater from sources other than toilets, including wastewater from kitchens, laundry, showers, handwashing, and washing fruits and vegetables, characterized by larger volume and lower concentration. Under this model, wastewater treatment facilities only treat greywater with a lower pollution load, significantly simplifying the wastewater treatment process and reducing construction and operating costs. Blackwater is collected and treated separately, using different treatment methods tailored to local conditions (such as straw-based in-situ fermentation beds, anaerobic fermentation for harmless treatment, etc.).

[0005] In the process of rural household toilet renovation, the design and selection of water-saving sanitary ware should fully recognize the above-mentioned background conditions, and take "low water consumption, strong cleaning power, simple structure, convenient installation and flexible layout" as the principle, combine with the local rural domestic sewage treatment system, and actively meet the needs of users. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a water-cooled, graded, enhanced-efficiency flushing device. This device offers a solution for the treatment of rural domestic sewage with gray and black water separation, providing a high-pressure flushing system that uses minimal water, has strong cleaning power, a simple design, flexible installation, and is easy to use. The aim is to resolve the adverse effects of excessively low concentrations of black water pollutants in rural domestic sewage caused by the large flushing volume of conventional sanitary ware, which hinders sewage treatment and resource utilization.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A high-pressure flushing device for a water-saving toilet with enhanced air-water grading is characterized by comprising a water storage tank, an air-water grading pump, and a conduit. The water storage tank includes a tank body and a lid, with the lid having an opening at the top of the tank body and a water inlet. The air-water grading pump includes a pump body, a pressure sleeve, and a pressure rod. The pump body is fixedly connected to the tank body. The lower end of the pressure sleeve passes through the pump body, and the upper end has a hand-operated device. The pressure rod is movably connected within the pressure sleeve. The pump body has an air chamber at the upper end and a water chamber at the lower end. An air chamber piston is installed in the air chamber for air intake and exhaust, and a water chamber piston is installed in the water chamber for water intake and exhaust. A suction nozzle is installed at the bottom of the water chamber for drawing water from the tank body. The suction nozzle has a movable seal for opening and closing. The air chamber piston is connected to the bottom of the pressure sleeve, and the water chamber piston is connected to the bottom of the pressure rod. The inlet end of the conduit is connected to the air chamber and the water chamber, and the outlet end is connected to the toilet via a nozzle.

[0009] Furthermore, the gas-water classifier pump also includes a return spring, one end of which is connected to the pressure sleeve rod and the other end is connected to the pump body, for resetting the pressure sleeve rod.

[0010] Furthermore, a sealing ring is provided at the connection between the air chamber piston and the pressure rod, and the pressure rod passes through the sealing ring to ensure the airtightness of the air chamber when the pressure rod moves.

[0011] Furthermore, a limiting device is provided at the top of the pressure rod, the diameter of which is larger than the diameter of the small hole on the sealing ring, for driving the pressure rod to return to its original position.

[0012] Furthermore, the hand-operated device is provided with an exhaust port, which connects the inside of the pressure sleeve rod to the atmosphere.

[0013] Furthermore, the conduit includes an exhaust pipe, a drain pipe, and a combined air and water pipe. One end of the exhaust pipe is connected to the air chamber, one end of the drain pipe is connected to the water chamber, and the other ends of the exhaust pipe and the drain pipe are connected in parallel to the combined air and water pipe. The nozzle is located at the end of the combined air and water pipe.

[0014] Furthermore, a valve nozzle is provided at the connection between the drain pipe and the water chamber. The valve nozzle includes a plastic rigid film and a water-permeable support. When the water chamber is not pressurized, the rigid films are gathered together and the valve nozzle is in a closed state. When the pressure inside the water chamber increases, the rigid films are forced to open outward to form a channel for high-pressure drainage. The water-permeable support is supported on the side of the rigid film located in the water chamber to ensure that no external air enters from the valve nozzle when the water chamber is filled with water.

[0015] Furthermore, the movable seal is a glass ball. When the water chamber piston moves upward, the glass ball is pushed open by the external water pressure of the suction nozzle, and water enters the water chamber. When the water chamber piston moves downward, the glass ball blocks the suction nozzle from inside the water chamber, and the water in the water chamber is drained out through the conduit.

[0016] Furthermore, the nozzle head has an arc-shaped structure, a rectangular water outlet is provided on the side of the nozzle head, a sealing ring is provided at the upper end of the rectangular water outlet, and a reinforcing rib is provided on the side wall of the connection area between the nozzle and the guide tube.

[0017] Furthermore, the air-water grading pump is connected to the tank body via a fixed bracket, and the fixed bracket is connected to the tank body via a fastener.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. When this invention is used for rural toilet renovation or new household toilet construction, it does not need to be buried underground and can be placed around the toilet. The configured conduit and nozzle can be used with conventional toilets, which greatly reduces the construction, installation or renovation costs.

[0020] 2. An air-water staged pump is fixed inside the toilet bowl. The pressure rod at the top of the pump sequentially forces air from the air chamber and flushing water from the water chamber into the conduit, creating high-pressure airflow and water flow within the toilet bowl for cleaning. Due to the intervention of high-pressure air, compared to traditional water-saving high-pressure flushers, this invention not only uses significantly less water (0.2-0.3 liters / flush) but also improves cleaning efficiency.

[0021] 3. The water inlet of the bucket lid can be connected to the drain pipe of the washbasin, or it can be manually filled with grey water generated from bathing, washing, etc. Normally, it should be covered with two semi-circular plastic caps to prevent foreign objects from entering the bucket and clogging the pipes. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 This is a top view of the water storage tank in an embodiment of the present invention;

[0024] Figure 3This is a schematic diagram of the internal structure of the air-water staged pump and water storage tank in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the air-water staged pump in a non-working state in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the working state of the gas-water staged pump structure in an embodiment of the present invention when it is waiting for drainage after exhausting;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the valve nozzle in an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Top view;

[0029] Figure 8 This is a schematic diagram of the nozzle structure in an embodiment of the present invention;

[0030] In the diagram: 1. Barrel body; 2. Barrel lid; 3. Sealing connector; 4. Air-water combined pipe; 5. Nozzle; 6. Rectangular water outlet; 7. Sealing ring; 8. Connection area; 9. Reinforcing rib; 10. Water inlet; 11. Fixed bracket; 12. Fixing component; 13. Hand-operated device; 14. Pressure sleeve rod; 15. Pump body; 16. Return spring; 17. Air chamber piston; 18. Air chamber; 19. Pressure rod; 20. Water chamber piston; 21. Water chamber; 22. Exhaust pipe; 23. Valve nozzle; 24. Drain pipe; 25. Glass bulb; 26. Suction nozzle; 27. Rubber sealing ring; 28. Limiting device; 29. ​​Exhaust hole; 30. Rigid membrane; 31. Water-permeable bracket. Detailed Implementation

[0031] To enhance understanding of the present invention, we will now describe it in further detail with reference to the accompanying drawings. These embodiments are for illustrative purposes only and do not constitute a limitation on the scope of protection of the present invention.

[0032] Figure 1-8 A specific embodiment of a high-pressure flushing device for a water-saving toilet with air-water staged enhancement is shown, including a water storage tank, an air-water staged pump, and a conduit. The water storage tank includes a tank body 1 and a tank cover 2 disposed on top of the tank body 1. A conduit is disposed on the outside of the tank body 1, and a nozzle 5 is disposed at the end of the conduit. A water inlet 10 is disposed on the tank cover 2.

[0033] The air-water staged pump consists of a pump body 15, a pressure sleeve 14, a pressure rod 19, a return spring 16, and other structures. The pump body 15 is fixed to the center of the tank 1 via a fixing bracket 11 and a fixing member 12. The pump body 15 is divided into an air chamber 18 and a water chamber 21, with the air chamber 18 located above the water chamber 21. An air chamber piston 17 and a water chamber piston 20 are respectively installed in the air chamber 18 and water chamber 21. A hand-operated device 13 is located at the top of the pressure sleeve 14, and the hand-operated device 13 has a vent 29 at its center, connecting the interior of the pressure sleeve 14 to the atmosphere. One end of the return spring 16 is fixed to the top of the pump body 15, and the other end is fixed to the pressure sleeve 14. The pressure sleeve 14 is hollow and is fixed by a central hole in the barrel cover 2. The bottom is connected to the air chamber piston 17. A rubber sealing ring 27 is provided in the center of the air chamber piston 17. A small hole is opened in the center of the rubber sealing ring 27. The pressure rod 19 is sleeved inside the pressure sleeve 14 through the small hole. The rubber sealing ring 27 is used to ensure the airtightness of the air chamber 18 when the pressure rod 19 returns to its original position. A limiting device 28 is provided at the top of the pressure rod 19. The diameter of the limiting device 28 is larger than the diameter of the small hole on the rubber sealing ring 27, which is used to drive the pressure rod 19 to return to its original position. The bottom of the pressure rod 19 is connected to the water chamber piston 20. The bottom of the water chamber 21 is conical, and a suction nozzle 26 and a movable seal are provided at the center of the bottom. The movable seal is a glass ball 25. When the water chamber piston 20 moves upward, the glass ball 25 is pushed open by the external water pressure of the suction nozzle 26, and water enters the water chamber 21. When the water chamber piston 20 moves downward, the pressure inside the water chamber 21 increases, and the glass ball 25 blocks the suction nozzle 26 from inside the water chamber 21.

[0034] The conduit includes an exhaust pipe 22, a drain pipe 24, and a combined air-water pipe 4. One end of the exhaust pipe 22 is connected to the air chamber 18, and one end of the drain pipe 24 is connected to the water chamber 21 via a valve nozzle 23. The other ends of the exhaust pipe 22 and the drain pipe 24 are connected in parallel to the combined air-water pipe 4. Water in the water chamber 21 is sprayed from the valve nozzle 23 into the drain pipe 24.

[0035] like Figure 6 , 7 As shown, the valve nozzle 23 includes a plastic rigid film 30 and a water-permeable support 31. When the water chamber 21 is not pressurized, the rigid films 30 are gathered together, and the valve nozzle 23 is in a closed state. When the pressure inside the water chamber 21 increases, the rigid films 30 are forced to open outward, forming a channel for high-pressure drainage. The water-permeable support 31 is supported on the side of the rigid film 30 located in the water chamber 21 to ensure that no external air enters from the valve nozzle 23 when water enters the water chamber 21.

[0036] like Figure 8As shown, a nozzle 5 is installed at the end of the air-water shared pipe 4. The nozzle 5 has an arc-shaped head and a rectangular water outlet 6 on the side of the head. A sealing ring 7 is installed at the upper end of the rectangular water outlet 6. A reinforcing rib 9 is installed on the side wall of the connection area 8 between the nozzle 5 and the air-water shared pipe 4. The nozzle 5 is installed at the water inlet of the toilet bowl, and all pipe connections are made by sealing connectors 3.

[0037] The specific working process and principle of the above embodiments are as follows:

[0038] In use, the nozzle 5 can be connected to the flushing inlet of a conventional toilet. The rectangular water outlet 6 on the nozzle 5 can spray high-speed airflow and water in a fan-shaped structure, resulting in a large impact force and a large flushing area. The sealing ring 7 at the upper end of the rectangular water outlet 6 and the reinforcing rib 9 on the side wall of the connection area 8 can seal and firmly fix the nozzle 5 to the toilet bowl interface.

[0039] The water inlet 10 on the lid 2 can be connected to the sink drain pipe, or it can be manually filled with grey water generated from bathing, washing, etc. Normally, it is covered with two semi-circular plastic caps to prevent foreign objects from entering the inside of the bucket 1 and clogging the pipe.

[0040] The air-water mixing pump is fixed inside the tank 1 by a fixed bracket 11, which can effectively prevent the pump body 15 from shaking during use.

[0041] The air-water mixing pump, by pressing down the pressure sleeve 14 at the top of the pump body 15, sequentially forces air from the air chamber 18 and flushing water from the water chamber 21 into the conduit, thereby creating a high-pressure airflow and water flow within the toilet bowl for cleaning. Specifically, when the pressure sleeve 14 is pressed down, it simultaneously overcomes the elastic force of the return spring 16 and the frictional force between the air chamber piston 17 and the pump body 15, moving the air chamber piston 17 downwards. Air from the air chamber 18 is then exhausted through the exhaust pipe 22, forming a high-pressure airflow. When the air chamber piston 17 moves to the... Figure 5 At the position shown, the air chamber piston 17 continues to push the water chamber piston 20 downward, increasing the pressure in the water chamber 21. The glass ball 25 blocks the suction nozzle 26, and the water in the water chamber 21 is drained out through the drain pipe 24.

[0042] After venting and draining, the return spring 16 fixed to the top of the pump body 15 drives the pressure sleeve 14 and pressure rod 19 to automatically reset, and then successively complete the air intake and water intake of the air chamber 18 and water chamber 21. Specifically, after the hand releases the hand pressure device 13, the pressure sleeve 14 moves upward under the elastic force of the return spring 16. When the limit device 28 moves to the rubber sealing ring 27, the rubber sealing ring 27 drives the pressure rod 19 to move upward at the same time. At this time, the pressure in the water chamber 21 decreases, and the glass ball 25 is pushed open by the external water pressure of the suction nozzle 26, and the water chamber 21 completes the water intake.

[0043] Due to the intervention of high-pressure air, compared with traditional water-saving high-pressure flushers, this invention not only uses very little water (0.2-0.3 liters / brush), but also improves cleaning ability.

[0044] The above specific embodiments are only for illustrating the technical concept and structural features of the present invention, and are intended to enable those skilled in the art to implement them. However, the above content does not limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit and essence of the present invention should fall within the scope of protection of the present invention.

Claims

1. A high-pressure flushing device for a water-saving toilet with enhanced air and water gradation, characterized in that: The system includes a water storage tank, an air-water grading pump, and a conduit. The water storage tank includes a tank body (1) and a tank cover (2). The tank cover (2) is located at the opening above the tank body (1), and a water inlet (10) is provided on the tank cover (2). The air-water grading pump includes a pump body (15), a pressure sleeve (14), and a pressure rod (19). The pump body (15) is fixedly connected inside the tank body (1). The lower end of the pressure sleeve (14) passes through the pump body (15), and the upper end is provided with a hand-operated device (13). The pressure rod (19) is movably connected inside the pressure sleeve (14). The upper end of the pump body (15) is an air chamber (18), and the lower end is a water chamber (21). An air chamber piston (17) is provided in the air chamber (18) for sucking and discharging air in the air chamber (18). A water chamber piston (20) is provided in the water chamber (21) for sucking and discharging water in the water chamber (21). A suction nozzle (26) is provided at the bottom of the water chamber (21) for sucking water from the bucket (1). A movable seal is provided on the suction nozzle (26) for opening and closing the suction nozzle (26). The air chamber piston (17) is connected to the bottom of the pressure sleeve rod (14). The water chamber piston (20) is connected to the bottom of the pressure rod (19). The inlet end of the conduit is connected to the air chamber (18) and the water chamber (21) respectively. The outlet end is connected to the toilet through the nozzle (5). The gas-water grading pump also includes a return spring (16), one end of which is connected to the pressure sleeve (14) and the other end is connected to the pump body (15), for the reset of the pressure sleeve (14); A rubber sealing ring (27) is provided at the connection between the air chamber piston (17) and the pressure rod (19). The pressure rod (19) passes through the rubber sealing ring (27) to ensure the airtightness of the air chamber (18) when the pressure rod (19) moves. The pressure rod (19) is provided with a limiting device (28) at the top. The diameter of the limiting device (28) is larger than the diameter of the small hole on the rubber sealing ring (27), which is used to drive the pressure rod (19) to reset upward. The air-water mixing pump uses the pressure sleeve (14) at the top of the pump body (15) to press the air in the air chamber (18) and the flushing water in the water chamber (21) into the conduit, thereby forming a high-pressure airflow and water flow in the toilet for cleaning. After exhausting and draining, the pressure sleeve (14) and pressure rod (19) are automatically reset by the reset spring (16) fixed on the top of the pump body (15), and the air chamber (18) and water chamber (21) are filled with air and water respectively.

2. The air-water graded enhanced water-saving toilet high-pressure flushing device according to claim 1, characterized in that: The hand-operated device (13) is provided with an exhaust port (29), which connects the inside of the pressure sleeve (14) to the atmosphere.

3. The air-water graded enhanced water-saving toilet high-pressure flushing device according to claim 1, characterized in that: The conduit includes an exhaust pipe (22), a drain pipe (24), and a gas-water common pipe (4). One end of the exhaust pipe (22) is connected to the air chamber (18), and one end of the drain pipe (24) is connected to the water chamber (21). The other ends of the exhaust pipe (22) and the drain pipe (24) are connected in parallel to the gas-water common pipe (4). The nozzle (5) is located at the end of the gas-water common pipe (4).

4. The air-water graded enhanced water-saving toilet high-pressure flushing device according to claim 3, characterized in that: A valve nozzle (23) is provided at the connection between the drain pipe (24) and the water chamber (21). The valve nozzle (23) includes a plastic rigid film (30) and a water-permeable support (31). When the water chamber (21) is not pressurized, the rigid films (30) are gathered together and the valve nozzle (23) is in a closed state. When the pressure inside the water chamber (21) increases, the rigid film (30) is forced to open outward to form a channel for high-pressure drainage. The water-permeable support (31) is supported on one side of the rigid film (30) located in the water chamber (21) to ensure that no external air enters from the valve nozzle (23) when the water chamber (21) is filled with water.

5. The air-water graded enhanced water-saving toilet high-pressure flushing device according to claim 1, characterized in that: The movable seal is a glass ball (25). When the water chamber piston (20) moves upward, the glass ball (25) is pushed open by the external water pressure of the suction nozzle (26), and water enters the water chamber (21). When the water chamber piston (20) moves downward, the glass ball (25) blocks the suction nozzle (26) from inside the water chamber (21), and the water in the water chamber (21) is drained out through the conduit.

6. The air-water graded enhanced water-saving toilet high-pressure flushing device according to claim 1, characterized in that: The nozzle (5) has an arc-shaped head and a rectangular water outlet (6) is provided on the side of the nozzle (5). A sealing ring (7) is provided at the upper end of the rectangular water outlet (6). A reinforcing rib (9) is provided on the side wall of the nozzle (5) and the connection area (8) between the conduit and the guide tube.

7. The air-water graded enhanced water-saving toilet high-pressure flushing device according to claim 1, characterized in that: The gas-water grading pump is connected inside the barrel (1) by a fixed bracket (11), and the fixed bracket (11) is connected to the barrel (1) by a fastener (12).

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