Wide-mouth direct-falling type excrement liquefaction type water-free flushing toilet

Abstract

The invention relates to a wide-mouth direct-falling type excrement liquefaction type water-free flushing toilet which is composed of a wide-mouth water-free flushing toilet, a large-diameter excrement direct-falling pipe, an excrement liquefaction pool, an exhaust pipe, an excrement liquid discharge pipe, a light toilet house and an internet-of-things monitoring device, and the lower end of the large-diameter excrement direct-falling pipe is connected with the excrement liquefaction pool buried below a frozen soil layer; the upper part extends out of the ground of the toilet room to a certain height in the toilet room, the wide-mouth flushing-free toilet bowl is buckled on an upper opening of the wide-mouth flushing-free toilet bowl, and excrement is converted into excrement liquid through physical and biological actions in the excrement liquefying pool. Water flushing is not needed, excrement is not prone to being stained on the toilet stool, defecation is sanitary and convenient, excrement discharged from the toilet is not solid excrement but excrement liquid, the problem that excrement is difficult to dig in a pit toilet is solved, use and maintenance are facilitated, and convenience is provided for efficient resource utilization and modernization management of excrement.

Description

Technical Field

[0001] This invention belongs to the field of rural toilets, specifically a wide-mouth direct-fall type waterless toilet for liquefying feces. Background Technology

[0002] Currently, in arid, water-scarce, and high-altitude regions, waterless dry toilets are a common form of sanitation, generally pit-type dry toilets, including single-pit and alternating double-pit types. This type of toilet has two serious problems: First, most toilets use squat toilets or squat-style openings, which are inconvenient for the elderly. The few that use seated toilets have small drain openings, both of which are prone to fecal contamination, making cleaning difficult, especially in winter and cold seasons. Second, in most of these toilets, feces are dehydrated and dried in a septic tank, requiring traditional manual excavation, which is not only difficult but also produces a strong odor and a poor working environment, making it difficult to use modern equipment for cleaning. A few toilets use septic tanks that convert feces into sludge, and a small number use liquefaction tanks for feces-sludge conversion; these also suffer from strong odors, unreasonable structures, and difficulty in cleaning fecal residue. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, this invention provides a wide-mouth direct-fall type waterless toilet for liquefying feces. This toilet uses a detachable wide-mouth toilet bowl and a large-diameter direct-fall pipe to collect feces, making it convenient to use. In the feces liquefaction tank, the feces are transformed into liquid through biological fermentation and physical processes. The liquid and sludge can be easily extracted in one go using a septic tank pump, or automatically discharged through a negative pressure pipe network. A high-efficiency exhaust pipe with waste gas treatment function ensures clean indoor air and reduces environmental pollution. This toilet not only eliminates the need for flushing but also creates favorable conditions for the resource utilization and intelligent management of fecal waste.

[0004] The technical solution of this invention is as follows: A wide-mouth direct-fall type waterless toilet for liquefying feces comprises a wide-mouth waterless flushing device, a large-diameter direct-fall pipe for feces, a feces liquefaction tank, an exhaust pipe, a feces discharge pipe, a lightweight toilet house, and an IoT monitoring device. The lightweight toilet house serves as the upper frame of the overall device, housing the components. The wide-mouth waterless flushing device is located inside the toilet house, with its lower end connected to the upper end of the large-diameter direct-fall pipe extending from the floor of the toilet house. The large-diameter direct-fall pipe extends vertically downwards, connecting to the top of the feces liquefaction tank buried underground. One end of the exhaust pipe connects to the top of the feces liquefaction tank, while the other end extends to the outside of the toilet house. The lower end of the feces discharge pipe connects to the bottom of the feces liquefaction tank, while the upper end extends to near the ground above the tank or connects to a side outlet. The liquid level sensor of the IoT monitoring device is installed inside the feces liquefaction tank, and the component monitoring the liquid level is connected to the feces liquefaction tank. The control and display components are located inside the toilet house. All components are connected via pipe interfaces, clips, and wires.

[0005] When the septic tank is full, the septic tank is automatically or manually discharged through the septic tank discharge pipe. It can be transported to a centralized storage and treatment facility for secondary fermentation and storage via a sewage truck or sewage network, or temporarily stored in farmers' septic tanks (bags) for later use, or directly used as fertilizer for small vegetable gardens in the courtyard.

[0006] Furthermore, the aforementioned wide-mouth waterless toilet consists of a detachable wide-mouth toilet seat and a multi-functional toilet seat cover. The bottom of the detachable wide-mouth toilet seat has a large-diameter waste outlet and a socket for connecting to a large-diameter waste direct discharge pipe. The top of the large-diameter waste direct discharge pipe is inserted into the socket of the waste outlet of the detachable wide-mouth toilet seat. A nozzle mounting hole is provided in the middle of the top side of the front end of the detachable wide-mouth toilet seat. The multi-functional toilet seat cover is located on the upper part of the detachable wide-mouth toilet seat. A tilt switch is provided on the inner surface of the multi-functional toilet seat cover. The tilt switch is connected to an Internet of Things monitoring device through a wire. Furthermore, a microbial agent spraying device is connected to the nozzle mounting hole, which consists of a nozzle, a nozzle inlet short pipe, a delivery hose, a micro self-priming pump, and a liquid agent storage tank. The nozzle mounting hole has a built-in nozzle that sprays microbial liquid onto the curved urine collection slope of the toilet. The nozzle and the inlet short pipe are connected as one unit. The inlet short pipe passes through from the inside to the outside and is fixed to the nozzle mounting hole. The inlet short pipe is connected to one end of the microbial liquid delivery hose on the outside of the toilet. The other end of the delivery hose is inserted into the liquid agent storage tank placed near the toilet. A micro self-priming pump 36 is installed on the delivery hose. The micro self-priming pump is connected to an Internet of Things monitoring device through a wire.

[0007] Furthermore, the fecal liquefaction tank is a two-compartment tank. A large-diameter fecal direct-fall pipe is connected to the first compartment, and a fecal liquefaction discharge pipe is connected to the second compartment. An inner partition is provided between the first and second compartments. Its bottom and side sides are connected to the tank wall, and its top edge is a certain distance above the highest liquid level line of the first compartment. A fecal passage pipe is provided on the inner partition. The fecal passage pipe is inverted L-shaped. Its lower opening is located in the first compartment, and its upper opening extends through the inner partition into the second compartment for a certain length. The distance between the lower opening of the fecal passage pipe and the bottom of the fecal liquefaction tank is 1 / 2 to 1 / 3 of the depth of the highest liquid level line of the fecal liquefaction tank. The lower edge of its upper opening is flush with the highest liquid level line of the fecal liquefaction tank in the first compartment. Furthermore, a covered inspection well is installed in the second compartment of the two-compartment septic tank. The lower end of the inspection well is connected to the top surface of the septic tank, and the upper end of the inspection well extends a certain height above the ground.

[0008] Furthermore, the aforementioned fecal liquefaction tank is a single-cell structure, eliminating the internal partition and the sewage pipe. A large-diameter sewage drop pipe is connected from the top to one end (front end) of the fecal liquefaction tank, and the sewage discharge pipe is connected to the other end (rear end). A covered inspection well is installed at one end of the sewage discharge pipe.

[0009] The septic tank is made of fiberglass, plastic, carbon steel or concrete.

[0010] Furthermore, the bottom end of the exhaust pipe is connected to the exhaust port at the rear end of the wide-mouth toilet bowl. The exhaust pipe opening is inserted into the exhaust port socket of the toilet bowl and sealed with a rubber anti-odor sealing ring. Alternatively, the bottom end of the exhaust pipe is connected from the top to the large-diameter sewage pipe via an open tee connector. One end of the open tee connector is fixed to the opening on the side wall of the large-diameter sewage pipe, and the other end is connected to the bottom end of the exhaust pipe. The opening diameter of the side wall of the large-diameter sewage pipe and the diameter of the open tee connector are coordinated with the diameter of the exhaust pipe. The top end of the exhaust pipe is connected to the atmosphere and extends upward to a certain height from the ground. It is fixed to the wall fixture of the lightweight toilet house. An exhaust pipe cap is installed at the top end. A miniature duct fan is installed at the lower end of the exhaust pipe near the location where the wide-mouth toilet bowl is installed. The miniature duct fan is directly connected to the tilt switch via a wire or connected to the tilt switch via an IoT monitoring device. The miniature duct fan is also connected to the IoT monitoring device separately via a wire.

[0011] Furthermore, the exhaust pipe cap consists of a rainproof top cover, supporting legs, a cap base, and a fly and mosquito net. The rainproof top cover is umbrella-shaped or mushroom-shaped, and its outer diameter is larger than the outer diameter of the exhaust pipe. The rainproof top cover is higher than the cap base by a certain height and is connected to the cap base by at least three supporting legs. The cap base is a cylinder with a certain height. The upper opening of the cap base is provided with a fly and mosquito net, and the lower opening is provided as a receiving port. The exhaust pipe cap is fastened onto the upper opening of the exhaust pipe, and the upper opening of the exhaust pipe is inserted into the receiving port of the cap base.

[0012] Furthermore, the exhaust pipe cap is a combined exhaust pipe cap, which also includes a PVC direct connector, a mesh, a PVC short pipe, and a cylindrical porous activated carbon block. A mesh is provided at the bottom of the upper socket of the PVC direct connector. A PVC short pipe is inserted into the socket above the mesh. The PVC short pipe is higher than the upper socket by a certain height. A cylindrical porous activated carbon block is placed inside the PVC short pipe. The upper opening of the PVC short pipe is inserted into the socket of the cap seat. The combined exhaust pipe cap is fastened onto the upper opening of the exhaust pipe.

[0013] Furthermore, the sewage discharge pipe is fixed to the wall of the sewage liquefaction tank, with its lower end extending to the bottom of the second compartment of the two-compartment sewage liquefaction tank or the rear bottom of the single-compartment sewage tank. A sewage pump is installed at the lower end, and its upper end extends upward through the soil cover layer or along the inner wall of the inspection well of the sewage liquefaction tank to near the ground. It is connected to the sewage suction pipe of the sewage truck or to the yard fertilization hose through a quick interface. A return spray device is installed on the sewage discharge pipe. Furthermore, the upper opening of the sewage discharge pipe extends to a certain height and is connected to an underground non-gravity drainage pipe through a side outlet. A connecting valve is installed at the connection with the side outlet, and a floating negative pressure suction device is installed at the bottom of the sewage discharge pipe.

[0014] Furthermore, a sewage return spray device is connected to the sewage discharge pipe, which consists of a reversing valve, a return spray pipe, and a duckbill nozzle. The reversing valve is installed on the sewage discharge pipe and has one inlet and two outlets. One inlet and one outlet are connected to the sewage discharge pipe, and the other outlet is connected to one end of the return spray pipe. The other end of the return spray pipe is connected to the duckbill nozzle. The duckbill nozzle is installed above the highest liquid level of the first compartment of the sewage liquefaction tank. If there is an inner baffle, it is installed above the upper edge of the inner baffle. Its nozzle is angled downwards and aimed at the liquid surface of the first compartment. When the reversing valve is switched to the return state, the water flows through the return spray pipe and the duckbill nozzle and sprays at high speed towards the liquid surface of the first compartment. When the reversing valve is switched to the discharge state, the water flows to the upper outlet of the sewage discharge pipe.

[0015] Furthermore, the lightweight toilet house consists of a roof panel, lightweight walls, a floor panel, a toilet door, and ventilation windows. The large-diameter sewage pipe passes through the floor panel from bottom to top and extends to a certain height above the floor panel. The lightweight toilet house adopts a lightweight prefabricated toilet house or other types of lightweight, low-cost toilet house. The lightweight toilet house is directly fixed to the underground carbon steel or concrete sewage liquefaction tank by steel brackets. The roof of the toilet house is fixed with solar photovoltaic power generation panels.

[0016] Furthermore, the IoT monitoring device consists of a liquid level sensor, a monitoring module, a remote communication module, and a power supply. The liquid level sensor is connected to the monitoring module via a wire, and the monitoring module is connected to the remote communication module and the power supply. The power supply consists of a solar photovoltaic panel and a battery, or it can be AC ​​power. The remote communication module is wirelessly connected to the toilet IoT management system.

[0017] Furthermore, the high-concentration liquid level sensor is installed in the second compartment of a two-compartment septic tank or in the rear compartment of a single-compartment septic tank. It is a low-cost switch-type sensor capable of detecting two liquid levels (high and low) or three liquid levels (high, medium, and low), or an analog sensor capable of detecting liquid level depth using an immersion-type sewage level sensor, a non-contact radar, or a laser level sensor.

[0018] The beneficial effects of this invention are as follows: 1. No water is needed for flushing, and feces are less likely to stick to the toilet bowl, making toilet use hygienic and convenient. The toilet discharge is not solid feces but liquid feces, avoiding the difficult problem of "digging out feces," facilitating management and maintenance. It is very suitable for building outdoor toilets in water-scarce and cold regions, especially in rural areas of high altitude and cold regions, significantly reducing the construction and application costs of toilets. The high-concentration feces liquid is also a good liquid fertilizer. 2. It overcomes many problems existing in waterless toilets, greatly improving the toilet conditions and indoor and outdoor environment of waterless toilets, and facilitating the daily maintenance and management of toilets. Although no water is needed for flushing, the feces liquid discharged from the toilet is cleaned using modern technology, just like the feces liquefaction tank of a water-flushing toilet. The feces liquid and fecal residue are conveniently extracted in one go by the septic tank pumping equipment, and the feces liquid and fecal residue are automatically discharged through the negative pressure pipeline network. At the same time, it also creates good conditions for the treatment and resource utilization of sewage. Attached Figure Description

[0019] Figure 1 Schematic diagram of a wide-mouth direct-fall waterless toilet Figure 2 Schematic diagram of microbial agent spraying device and open tee connector Figure 3 Schematic diagram of a combined exhaust cap with columnar porous activated carbon blocks The components shown in the diagram are as follows: 1. Wide-mouth toilet seat (disassembly and assembly); 2. Large-diameter direct-drainage pipe for feces; 3. Fecal liquefaction tank; 4. Exhaust pipe; 5. Sewage discharge pipe; 6. Lightweight toilet house; 7. Multifunctional toilet seat cover; 8. Liquid level sensor; 9. IoT monitoring device; 10. Tilt switch; 11. Miniature duct fan; 12. Solar photovoltaic panel; 13. Inspection well; 14. Exhaust pipe cap; 15. Inner partition; 16. Fecal passage pipe; 17. Toilet door; 18. Ventilation window; 19. Steel bracket; 20. Maximum liquid level line of the fecal liquefaction tank; 11. Outdoor. 21. Ground surface; 22. Minimum liquid level of septic tank; 23. Sewage pump; 24. Hose; 25. Reversing valve; 26. Return spray pipe; 27. Rainproof top cover; 28. Support legs; 29. ​​Cap base; 30. Columnar porous activated carbon block; 31. Nozzle mounting hole; 32. Sprayer head; 33. Liquid inlet short pipe; 34. Delivery hose; 35. Liquid bacterial agent storage tank; 36. Miniature self-priming pump; 37. Duckbill nozzle; 38. Open tee connector; 39. Fly and mosquito net; 40. Partition net; 41. PVC direct connector; 42. PVC short pipe. Detailed Implementation

[0020] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention. Example

[0021] like Figure 1This invention discloses a wide-mouth direct-fall type waterless toilet for liquefying feces, comprising a wide-mouth waterless flushing device 1, a large-diameter direct-fall pipe 2, a feces liquefaction tank 3, an exhaust pipe 4, a feces discharge pipe 5, a lightweight toilet house 6, and an Internet of Things (IoT) monitoring device 9. The lightweight toilet house serves as the upper frame of the overall device, housing the components. The wide-mouth waterless flushing device 1 is installed inside the lightweight toilet house 6, with its lower opening connected to the upper end of the large-diameter direct-fall pipe 2, which extends vertically downwards and connects to the feces liquefaction tank buried underground. 3. The top is connected. One end of the exhaust pipe 4 is connected to the top of the fecal liquefaction tank, and the other end extends to the outside of the toilet and rises a certain height above the toilet roof. The lower end of the fecal discharge pipe 5 is connected to the bottom of the fecal liquefaction tank, and the upper end extends to the ground near the top of the tank or is connected to the side outlet of the fecal liquefaction tank 3. The liquid level sensor 8 of the Internet of Things monitoring device 9 is installed inside the fecal liquefaction tank. The component that monitors the liquid level is connected to the fecal liquefaction tank. The control and display components are located inside the toilet. All components are connected by pipe interfaces, buckles, and wires.

[0022] When the septic tank is full, the septic tank is automatically or manually discharged through the septic tank discharge pipe. It can be transported to a centralized storage and treatment facility for secondary fermentation and storage via a sewage truck or sewage network, or temporarily stored in farmers' septic tanks (bags) for later use, or directly used as fertilizer for small vegetable gardens in the courtyard.

[0023] The waterless toilet with a wide opening described in this invention consists of a detachable wide-opening toilet and a multi-functional toilet seat 7. The bottom of the detachable wide-opening toilet has a large-diameter discharge port and a socket connected to a large-diameter direct discharge pipe 2. The top of the large-diameter direct discharge pipe 2 is inserted into the socket of the discharge port of the detachable wide-opening toilet 1. A nozzle mounting hole is provided at the middle of the top side of the front end of the detachable wide-opening toilet. The multi-functional toilet seat 7 is located on the upper part of the detachable wide-opening toilet 1. A tilt switch 10 is provided on the inner surface of the multi-functional toilet seat 7. The tilt switch 10 is connected to an Internet of Things monitoring device through a wire. When the toilet seat 7 is closed, the tilt switch 10 is in the closed state. When the toilet seat 7 is lifted, the tilt switch 10 switches to the open state. The detachable wide-opening toilet 1 is made of ceramic or plastic material. like Figure 2The wide-mouth waterless toilet of the present invention has a microbial agent spraying device connected to the nozzle mounting hole 31 on the toilet. The device consists of a nozzle 32, a nozzle inlet short pipe 33, a delivery hose 34, a micro self-priming pump 36, and a liquid agent storage tank 35. The nozzle 32 is installed in the nozzle mounting hole and sprays microbial agent solution onto the arc-shaped urine collection slope of the toilet. The nozzle 32 and the inlet short pipe 33 are connected as one unit. The inlet short pipe passes through from the inside to the outside and is fixed on the nozzle mounting hole. The inlet short pipe is connected to one end of the microbial agent delivery hose 34 on the outside of the toilet. The other end of the delivery hose is inserted into the liquid agent storage tank 35 placed near the toilet. The micro self-priming pump 36 is installed on the delivery hose and is connected to the Internet of Things monitoring device 9 through a wire.

[0024] The fecal liquefaction tank 3 of this invention is a two-compartment tank. A large-diameter fecal direct-fall pipe 2 is connected to the first compartment, and a fecal effluent discharge pipe 5 is connected to the second compartment. An inner partition 15 is provided between the first and second compartments. Its bottom and side edges are connected to the tank wall, and its top edge is higher than the highest liquid level line of the first compartment by a certain distance. A fecal passage pipe 16 is provided on the inner partition 15. The fecal passage pipe 16 is inverted L-shaped. Its lower opening is located in the first compartment, and its upper opening passes through the inner partition 15 and extends into the second compartment by a certain length. The distance between the lower opening of the fecal passage pipe 16 and the bottom of the fecal liquefaction tank is 1 / 2 to 1 / 3 of the depth of the highest liquid level line 20 of the fecal liquefaction tank. The lower edge of its upper opening is flush with the highest liquid level line 20 of the fecal liquefaction tank in the first compartment. A covered inspection well 13 is provided in the second compartment of the two-compartment fecal liquefaction tank. The lower end of the inspection well is connected to the top surface of the fecal liquefaction tank, and the upper end of the inspection well extends out of the ground by a certain height.

[0025] The fecal liquefaction tank 3 of the present invention is a single-cell type, eliminating the inner partition 15 and the fecal passage pipe 16. The large-diameter fecal direct drop pipe 2 is connected to one end (front end) of the fecal liquefaction tank 3 from the top, and the fecal liquid discharge pipe 5 is connected to the other end (rear end). A covered inspection well 13 is provided at one end of the fecal liquid discharge pipe 5.

[0026] The septic tank is made of fiberglass, plastic, carbon steel or concrete.

[0027] The exhaust pipe of this invention has its bottom end connected to the exhaust port at the rear end of the wide-mouth toilet bowl 1. The exhaust pipe opening is inserted into the exhaust port socket of the toilet bowl and sealed with a rubber anti-odor sealing ring, or, as... Figure 2The bottom end of the exhaust pipe is connected to the large-diameter sewage pipe 2 from the top via an open tee connector 38. One end of the open tee connector 38 is fixed to the opening on the side wall of the large-diameter sewage pipe 2, and the other end is connected to the bottom end of the exhaust pipe. The opening diameter of the side wall of the large-diameter sewage pipe 2 and the diameter of the open tee connector 38 are coordinated with the diameter of the exhaust pipe. The top end of the exhaust pipe is connected to the atmosphere. The exhaust pipe extends upward to a certain height from the ground and is fixed to the wall fixture of the lightweight toilet 6. An exhaust pipe cap 14 is installed at the top end. A miniature duct fan 11 is installed at the lower end of the exhaust pipe near the location where the wide-mouth toilet seat 1 is disassembled. The miniature duct fan 11 is directly connected to the tilt switch 10 via a wire or connected to the tilt switch 10 via an IoT monitoring device 9. The miniature duct fan 11 is also connected to the IoT monitoring device 9 separately via a wire.

[0028] like Figure 3 The exhaust pipe cap of the present invention consists of a rainproof top cover 27, support legs 28, a cap base 29, and a fly and mosquito net 39. The rainproof top cover is umbrella-shaped or mushroom-shaped, and its outer diameter is larger than the outer diameter of the exhaust pipe. The rainproof top cover is higher than the cap base by a certain height and is connected to the cap base by at least three support legs. The cap base is a cylinder with a certain height. The upper opening of the cap base is provided with a fly and mosquito net, and the lower opening is provided as a receiving port. The exhaust pipe cap is fastened to the upper opening of the exhaust pipe, and the upper opening of the exhaust pipe is inserted into the receiving port of the cap base.

[0029] like Figure 3 The exhaust pipe cap of the present invention is a combined exhaust pipe cap, which also includes a PVC direct connector 41, a mesh 40, a PVC short pipe 42, and a cylindrical porous activated carbon block 30. A mesh is provided at the bottom of the upper socket of the PVC direct connector 41. The PVC short pipe 42 is inserted into the socket above the mesh. The PVC short pipe 42 is higher than the upper socket by a certain height. The cylindrical porous activated carbon block 30 is placed inside the PVC short pipe 4. The upper opening of the PVC short pipe 4 is inserted into the socket of the cap seat. The combined exhaust pipe cap is fastened on the upper opening of the exhaust pipe 4.

[0030] like Figure 1 The sewage discharge pipe 5 of the present invention is fixed on the wall of the sewage liquefaction tank. Its lower end extends to the bottom of the second compartment of the two-compartment sewage liquefaction tank or the bottom of the rear side of the single-compartment sewage tank. A sewage pump is installed at the lower end or not. Its upper end extends upward through the soil layer or along the inner wall of the inspection well of the sewage liquefaction tank to the vicinity of the ground. It is connected to the sewage suction pipe of the sewage truck or to the yard fertilization hose 24 through a quick interface. A return spray device is installed on the sewage discharge pipe. The upper opening of the sewage discharge pipe of the present invention extends to a certain height and is connected to the underground non-gravity drainage pipe through the side outlet. A connecting valve is set at the connection with the side outlet, and a floating negative pressure suction device is set at the bottom of the sewage discharge pipe (Patent No. ZL 2023 2 1343257.8).

[0031] The present invention relates to a sewage discharge pipe connected to a sewage return spray device, which consists of a reversing valve 25, a return spray pipe 26, and a duckbill nozzle 37. The reversing valve 25 is installed on the sewage discharge pipe 5. The reversing valve 25 has one inlet and two outlets. One inlet and one outlet are connected to the sewage discharge pipe, and the other outlet is connected to one end of the return spray pipe 26. The other end of the return spray pipe 26 is connected to the duckbill nozzle 37. The duckbill nozzle 37 is installed above the highest liquid level of the first compartment of the sewage liquefaction tank. When there is an inner baffle, it is installed above the upper edge of the inner baffle. Its nozzle is angled downwards and aimed at the liquid surface of the first compartment. When the reversing valve is switched to the return state, water flows through the return spray pipe 26 and the duckbill nozzle 37 and sprays at high speed towards the liquid surface of the first compartment. When the reversing valve is switched to the discharge state, water flows to the upper outlet of the sewage discharge pipe. The reversing valve 25 is an electric T-type three-way valve or other valves with similar functions.

[0032] The lightweight toilet 6 of this invention consists of a roof panel, lightweight walls, a floor panel, a toilet door 17, and a ventilation window 18. The large-diameter sewage pipe 2 passes through the floor panel from bottom to top and extends to a certain height above the floor panel. The lightweight toilet 6 adopts a lightweight prefabricated toilet or other types of lightweight, low-cost toilet. The lightweight toilet 6 is directly fixed to the underground carbon steel or concrete sewage liquefaction tank by a steel bracket 19. A solar photovoltaic power generation panel 12 is fixed on the top surface of the toilet.

[0033] The IoT monitoring device of this invention consists of a liquid level sensor 8, a monitoring module, a remote communication module, and a power supply. The liquid level sensor 8 is connected to the monitoring module via a wire. The monitoring module is connected to the remote communication module and the power supply. The power supply consists of a solar photovoltaic panel and a battery, or it can be AC ​​power. The remote communication module is wirelessly connected to the toilet IoT management system. The high-concentration liquid level sensor 8 is installed in the second compartment of a two-compartment septic tank or the rear compartment of a single-compartment septic tank. It uses a low-cost switch sensor capable of detecting two liquid levels (high and low) or three liquid levels (high, medium, and low), or an analog sensor that detects liquid level depth using a submersible sewage level sensor, non-contact radar, or laser level sensor.

[0034] The method of use described in this invention includes the following steps: (1) First use. Before first use, fill the first compartment of the fecal liquefaction tank with 1 / 4 to 1 / 3 of its designed capacity of clean water.

[0035] (2) Full liquid alarm. When the liquefaction tank is also full (reaching the design maximum line of 20), the liquid level sensor 8 will automatically report and send a full liquid alarm message to the Internet of Things monitoring platform through the Internet of Things monitoring device.

[0036] (3) Sewage drainage: ① When using a ground-based sewage pumping device (such as a sewage truck) with a suction device to pump out sewage liquid, the upper opening of the sewage pumping pipe of the sewage pumping device and the sewage discharge pipe 5 are connected through a quick interface to pump out the sewage liquid.

[0037] ② When the sewage is extracted through the vacuum pipeline (a user vacuum suction valve is installed at the connection between the sewage discharge pipe 5 and the vacuum pipeline), after the sewage liquefaction tank is full and an alarm is triggered, the vacuum drainage system remotely opens the user vacuum suction valve, and the sewage is transported to the centralized storage and treatment facility through the vacuum pipeline.

[0038] ③ When the sewage is used locally in the courtyard or temporarily stored in other spare storage containers (a submersible pump is installed at the bottom of the sewage discharge pipe 5), after the sewage liquefaction tank is full and an alarm is triggered, the user can manually or automatically turn on the submersible pump, and the sewage will be discharged to the vegetable garden or spare storage container through the sewage discharge pipe 5 and the ground hose.

[0039] ④ When using a two-compartment septic tank, completely pump out the septic liquid from the second compartment; when using a single-compartment septic tank, stop pumping immediately when the remaining liquid volume is 1 / 4 to 1 / 3 of the design capacity (dropping to the minimum liquid level line 22, triggering an alarm from the IoT monitoring device 9).

[0040] (4) Water replenishment. After each pumping, check the remaining water in the fecal liquefaction tank. If it is less than 1 / 4 to 1 / 3 of its designed capacity, replenish it with clean water until the minimum liquid level line 22 is reached.

[0041] (5) Biofortification.

[0042] ① During the non-freezing season, the IoT monitoring device is set to activate the microbial agent spraying device when the toilet seat is closed after each use, spraying the microbial agent onto the urine collection surface of the toilet (utilizing its deodorizing function). It is set to spray every time or once after a certain number of times, with each spray lasting about 1 second.

[0043] ② During the non-freezing season, the IoT monitoring device is set to activate the microbial agent spraying device for a certain period of time every certain number of days when no one is using the toilet. The microbial agent (mainly promoting the anaerobic fermentation and liquefaction of feces) flows into the first compartment of the feces liquefaction tank through the toilet and the feces direct pipe. This not only promotes the liquefaction of feces, but also enhances fertility and promotes crop growth. The spraying time is determined by the amount of microbial agents required and the flow rate of the micro self-priming pump.

[0044] (6) Physical reinforcement. Periodically spray fecal liquid at high speed onto the surface of the first compartment through the fecal liquid return spray device to break up the floating feces on the surface and accelerate the liquefaction of feces. Each spray lasts for 1-3 seconds.

Claims

1. A wide-mouth direct-fall type waterless toilet for liquefying feces, comprising a wide-mouth waterless flushing device, a large-diameter direct-fall pipe for feces, a feces liquefaction tank, an exhaust pipe, a feces discharge pipe, a lightweight toilet house, and an Internet of Things (IoT) monitoring device. The lightweight toilet house serves as the upper frame of the overall device, with components installed inside. The wide-mouth waterless flushing device is installed inside the toilet house, and its lower end is fastened to the upper end of the large-diameter direct-fall pipe extending from the floor of the toilet house. The large-diameter direct-fall pipe extends vertically downwards and connects to the top of the feces liquefaction tank buried underground. One end of the exhaust pipe is connected to the top of the feces liquefaction tank, and the other end extends to the outside of the toilet house. The lower end of the feces discharge pipe is connected to the bottom of the feces liquefaction tank, and the upper end extends to the ground near the top of the tank or connects to a side outlet. The liquid level sensor of the IoT monitoring device is installed inside the feces liquefaction tank, and the component monitoring the liquid level is connected to the feces liquefaction tank. The control and display components are located inside the toilet house. All components are connected through pipe interfaces, clips, and wires.

2. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 1, characterized in that: The aforementioned wide-mouth waterless toilet consists of a detachable wide-mouth toilet and a multi-functional toilet seat. The bottom of the detachable wide-mouth toilet has a large-diameter sewage outlet and a socket for connecting to a large-diameter sewage pipe. The top of the large-diameter sewage pipe is inserted into the socket of the sewage outlet of the detachable wide-mouth toilet. A nozzle mounting hole is provided in the middle of the top side of the front end of the detachable wide-mouth toilet. The multi-functional toilet seat 7 is located on the upper part of the detachable wide-mouth toilet. A tilt switch is provided on the inner surface of the multi-functional toilet seat. The tilt switch is connected to an Internet of Things monitoring device through a wire. The nozzle mounting hole is connected to a microbial agent spraying device, which consists of a nozzle, a nozzle inlet short pipe, a delivery hose, a micro self-priming pump, and a liquid agent storage tank. The nozzle is installed in the nozzle mounting hole, and the nozzle sprays microbial liquid onto the curved urine collection slope of the toilet. The nozzle and the inlet short pipe are connected as one unit. The inlet short pipe passes through from the inside to the outside and is fixed to the nozzle mounting hole. The inlet short pipe is connected to one end of the microbial liquid delivery hose on the outside of the toilet. The other end of the delivery hose is inserted into the liquid agent storage tank placed near the toilet. A micro self-priming pump is installed on the delivery hose. The micro self-priming pump is connected to an Internet of Things monitoring device through a wire.

3. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 1, characterized in that: The aforementioned fecal liquefaction tank is a two-compartment tank. A large-diameter fecal direct-fall pipe is connected to the first compartment, and a fecal liquefaction discharge pipe is connected to the second compartment. An inner partition is provided between the first and second compartments. Its bottom and side sides are connected to the tank wall, and its top edge is a certain distance above the highest liquid level line of the first compartment. A fecal passage pipe is provided on the inner partition. The fecal passage pipe is inverted L-shaped. Its lower opening is located in the first compartment, and its upper opening extends through the inner partition into the second compartment for a certain length. The distance between the lower opening of the fecal passage pipe and the bottom of the fecal liquefaction tank is 1 / 2 to 1 / 3 of the depth of the highest liquid level line of the fecal liquefaction tank. The lower edge of its upper opening is flush with the highest liquid level line of the fecal liquefaction tank in the first compartment. A covered inspection well is installed in the second compartment of the two-compartment septic tank. The lower end of the inspection well is connected to the top surface of the septic tank, and the upper end of the inspection well extends a certain height above the ground.

4. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 1, characterized in that: The bottom end of the exhaust pipe is connected to the exhaust port at the rear end of the wide-mouth toilet. The exhaust pipe opening is inserted into the toilet's exhaust port socket and sealed with a rubber anti-odor sealing ring. Alternatively, the bottom end of the exhaust pipe is connected from above to a large-diameter sewage pipe via an open tee connector. One end of the open tee connector is fixed to an opening on the side wall of the large-diameter sewage pipe, and the other end is connected to the bottom end of the exhaust pipe. The opening diameter of the side wall of the large-diameter sewage pipe and the diameter of the open tee connector are coordinated with the diameter of the exhaust pipe. The top end of the exhaust pipe is connected to the atmosphere and extends upwards to a certain height from the ground. It is fixed to a wall fixture of the lightweight toilet unit. An exhaust pipe cap is installed at the top end. A miniature duct fan is installed at the lower end of the exhaust pipe near the location where the wide-mouth toilet is installed. The miniature duct fan is directly connected to a tilt switch via a wire or connected to the tilt switch via an IoT monitoring device. The miniature duct fan is also connected to the IoT monitoring device separately via a wire.

5. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 1, characterized in that: The exhaust pipe cap consists of a rainproof top cover, supporting legs, a cap base, and a fly and mosquito net. The rainproof top cover is umbrella-shaped or mushroom-shaped, and its outer diameter is larger than that of the exhaust pipe. The rainproof top cover is higher than the cap base by a certain height and is connected to the cap base by at least three supporting legs. The cap base is a cylinder with a certain height. The upper opening of the cap base is equipped with a fly and mosquito net, and the lower opening is a receiving port. The exhaust pipe cap is fastened onto the upper opening of the exhaust pipe, and the upper opening of the exhaust pipe is inserted into the receiving port of the cap base.

6. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 5, characterized in that: The exhaust pipe cap is a combined exhaust pipe cap, which also includes a PVC direct connector, a mesh, a PVC short pipe, and a cylindrical porous activated carbon block. A mesh is set at the bottom of the upper socket of the PVC direct connector. A PVC short pipe is inserted into the socket above the mesh. The PVC short pipe is higher than the upper socket by a certain height. A cylindrical porous activated carbon block is placed inside the PVC short pipe. The upper opening of the PVC short pipe is inserted into the socket of the cap seat. The combined exhaust pipe cap is fastened onto the upper opening of the exhaust pipe.

7. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 1, characterized in that: The sewage discharge pipe is fixed to the wall of the sewage liquefaction tank. Its lower end extends to the bottom of the second compartment of the two-compartment sewage liquefaction tank. A sewage pump is installed at the lower end. Its upper end extends upward through the soil layer or along the inner wall of the inspection well of the sewage liquefaction tank to near the ground. It is connected to the sewage suction pipe of the sewage truck or to the yard fertilizer hose through a quick interface. A return spray device is installed on the sewage discharge pipe. The upper opening of the sewage discharge pipe extends to a certain height and is connected to the underground non-gravity drainage pipe through the side outlet. A connecting valve is installed at the connection with the side outlet, and a floating negative pressure suction device is installed at the bottom of the sewage discharge pipe.

8. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 1, characterized in that: The sewage discharge pipe is connected to a sewage return spray device, which consists of a reversing valve, a return spray pipe, and a duckbill nozzle. The reversing valve is installed on the sewage discharge pipe and has one inlet and two outlets. One inlet and one outlet are connected to the sewage discharge pipe, and the other outlet is connected to one end of the return spray pipe. The other end of the return spray pipe is connected to the duckbill nozzle. The duckbill nozzle is installed above the highest liquid level of the first compartment of the sewage liquefaction tank. If there is an inner baffle, it is installed above the upper edge of the inner baffle. Its nozzle is angled downwards and aimed at the liquid surface of the first compartment. When the reversing valve is switched to the return state, the water flows through the return spray pipe and the duckbill nozzle and sprays at high speed towards the liquid surface of the first compartment. When the reversing valve is switched to the discharge state, the water flows to the upper outlet of the sewage discharge pipe.

9. The wide-mouth direct-fall type waterless toilet for liquefying feces as described in claim 1, characterized in that: The IoT monitoring device consists of a liquid level sensor, a monitoring module, a remote communication module, and a power supply. The liquid level sensor is installed inside the fecal liquefaction tank, and the component monitoring the liquid level is connected to the fecal liquefaction tank. The liquid level sensor is connected to the monitoring module via a wire, and the monitoring module is connected to the remote communication module and the power supply. The power supply consists of a solar photovoltaic panel and a battery, or it can be AC ​​power. The remote communication module is wirelessly connected to the toilet IoT management system.

10. The method of using a wide-mouth direct-fall type waterless toilet for liquefying feces as described in claims 1 to 9, characterized in that: The method of use includes the following steps. (1) For first use, the wide-mouth direct-fall waterless toilet shall be filled with 1 / 4 to 1 / 3 of its designed capacity of clean water into the first compartment of the fecal liquefaction tank before first use, and then it shall be used. (2) Liquid full alarm: When the fecal liquefaction tank is also full, the liquid level sensor will automatically report and send a liquid full alarm message to the Internet of Things monitoring platform through the Internet of Things monitoring device. (3) Sewage drainage: ① When using a ground-based sewage pumping device (such as a sewage truck) with a suction device to pump out sewage liquid, the upper opening of the sewage pumping pipe and the sewage discharge pipe of the sewage pumping device are connected through a quick interface to pump out the sewage liquid. ② When the sewage is extracted through the vacuum pipeline network (a user vacuum suction valve is installed at the connection between the sewage discharge pipe and the vacuum pipeline), after the sewage liquefaction tank is full and an alarm is triggered, the vacuum drainage system remotely opens the user vacuum suction valve, and the sewage is transported to the centralized storage and treatment facility through the vacuum pipeline network. ③ When the sewage is used locally in the courtyard or temporarily stored in other spare storage containers (a submersible pump is installed at the bottom of the sewage discharge pipe 5), after the sewage liquefaction tank is full and alarm is triggered, the user can manually or automatically turn on the submersible pump, and the sewage will be discharged to the vegetable garden or spare storage container through the sewage discharge pipe and the ground hose. ④ When using a two-compartment septic tank, completely pump out the septic liquid from the second compartment; when using a single-compartment septic tank, stop pumping immediately when the remaining liquid volume is 1 / 4 to 1 / 3 of the design capacity (an alarm will be issued by the IoT monitoring device). (4) Water replenishment: After each pumping, check the remaining water in the fecal liquefaction tank. If it is less than 1 / 4 to 1 / 3 of its designed capacity, replenish it with clean water. (5) Bio-enhancing: ① During the non-freezing season, the Internet of Things monitoring device is set to activate the microbial agent spraying device when the toilet seat is closed after each use, spraying microbial agent onto the urine collection surface of the toilet (using its deodorizing function). It is set to spray every time or once after a certain number of times, with each spray lasting about 1 second. ② During the non-freezing season, the IoT monitoring device is set to activate the microbial agent spraying device for a certain period of time every certain number of days when no one is using the toilet. The microbial agent (which promotes anaerobic fermentation and liquefaction of feces) flows into the first compartment of the feces liquefaction tank through the toilet and the feces direct pipe. This not only promotes the liquefaction of feces, but also enhances fertility and promotes crop growth. The spraying time is determined by the amount of microbial agent added and the flow rate of the micro self-priming pump. ③ During the freezing season, when necessary, liquid or solid microbial agents are added from the drain outlet of the wide-mouth toilet into the liquefaction tank. (6) Physical reinforcement: Periodically spray fecal liquid at high speed onto the first liquid surface through the fecal liquid return spray device to break up the floating feces on the liquid surface and accelerate the liquefaction of feces. Each spray lasts for 1-3 seconds.

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