Water-saving excrement collecting device for reconstruction of latrine in water-deficient area

Abstract

The utility model relates to a water-saving excrement collecting device for dry latrine transformation in a water-deficient area, which belongs to the technical field of dry latrine transformation and comprises a special toilet stool, and a dirt collecting component and a negative pressure component are arranged at the bottom of the special toilet stool. The dirt collecting assembly comprises a dirt collecting tank. According to the water-saving excrement collecting device for improving the latrine in the water-deficient area, the air pump is controlled by the control system to pressurize the pressurizing tank for standby application, and the negative pressure generating device forms negative pressure for standby application; the water spraying valve pipe is controlled by the pressurizing tank to spray water to the surface of the toilet stool, so that a lubricating effect is achieved, and excrement is convenient to clean; the first pinch valve and the second pinch valve are opened, air in the bedpan is pumped out, a low-pressure area is formed, and excrement is sucked into the dirt collecting tank from the bedpan through external atmospheric pressure; and then the pinch valve I and the pinch valve II are closed, the booster tank controls the water spray valve pipe to spray water to the surface of the toilet, and the drain outlet I and the drain outlet II are closed, so that the effects of saving water and preventing back flushing of excrement smell during water-saving and excrement-collecting are achieved.

Description

Technical Field

[0001] This utility model relates to the field of dry toilet renovation technology, specifically a water-saving waste collection device for dry toilet renovation in water-scarce areas. Background Technology

[0002] Currently, public toilets in rural areas and urban-rural fringe areas are unusable due to water shortages and insufficient water pressure, which prevent the use of water for flushing.

[0003] In some areas, especially remote mountainous regions where the economy is underdeveloped, a large number of dry toilets still exist, leading to the open accumulation of excrement and causing numerous environmental problems. While some areas have converted dry toilets to flush toilets, water shortages or insufficient water pressure have rendered many of these converted toilets unusable and abandoned due to the inability to flush away the excrement.

[0004] Existing technologies present problems, such as the inability to use traditional flush toilets in water-scarce areas: Arid and semi-arid regions account for more than half of my country's land area and about 10% of its population. Rural toilet renovation in these areas faces many practical difficulties, such as reluctance or lack of knowledge about how to use newly renovated toilets, insufficient water resources, and the inability to establish water supply and drainage networks. In some areas, even after new toilets have been built, traditional dry toilets are still retained.

[0005] Insufficient water pressure: After the upgrading and renovation of traditional dry toilets in rural areas, many have abandoned them. The low water pressure after the upgrades prevents the proper flushing of excrement, causing it to accumulate in the toilet bowl and even clog the pipes. This results in the toilets failing to achieve their intended purpose and becoming impractical. Consequently, many areas have reverted to using the old-style dry toilets.

[0006] High cost and difficult cleaning: Flushing toilets require more water than traditional dry toilets, and water supply in rural areas is unreliable and expensive. Furthermore, the limited capacity of the septic tank necessitates frequent emptying, increasing the financial burden.

[0007] Water waste: Traditional flush toilets use a lot of water, resulting in water waste. In addition, during use, due to a lack of water conservation awareness or the inability to flush away feces all at once, frequent flushing can lead to the water consumption per toilet visit far exceeding what is necessary.

[0008] Odor problem: Poor ventilation: Due to structural problems of traditional toilets, poor design or improper maintenance of the toilet ventilation system, odor problems are serious.

[0009] Drainage system blockage: Improper maintenance of the drainage system may lead to blockages, causing odors and sewage overflow. Some school toilets have poorly designed flushing systems with insufficient flushing power, failing to thoroughly flush away excrement. This results in residual excrement in the toilet bowl, which easily breeds bacteria, produces odors, and affects the sanitary environment of the toilet.

[0010] Design and Planning: Water Tank Capacity: Some school toilets have excessively large water tank capacities, resulting in a large amount of water used per flush. Furthermore, water conservation factors were not adequately considered during the design phase, leading to a waste of water resources.

[0011] Lack of scientific planning: During the design phase of school toilets, the actual usage and needs of the school were not fully considered, such as the number of students, usage frequency, and water usage characteristics. This resulted in an unreasonable design of the flushing system, which could not meet the requirements of actual use. Therefore, a water-saving toilet collection device for the renovation of dry toilets in water-scarce areas is proposed to solve the above problems. Utility Model Content

[0012] To address the shortcomings of existing technologies, this utility model provides a water-saving waste collection device for the renovation of dry toilets in water-scarce areas. It has the advantages of efficient collection, energy saving and environmental protection, and modular design. It solves the problems of high water consumption, high water cost, insufficient water pressure, inability to clean feces, and backflow odor in the sewer of flush toilets in water-scarce areas caused by traditional flushing methods.

[0013] To achieve the above objectives, this utility model provides the following technical solution: a water-saving toilet collection device for the renovation of dry toilets in water-scarce areas, comprising a special toilet bowl, wherein the bottom of the special toilet bowl is provided with a sewage collection component and a negative pressure component;

[0014] The sludge collection assembly includes a sludge collection tank, the top of which is fixedly connected to a fecal inlet, the top of which is fixedly connected to the bottom of a special toilet, a control system is installed on the front of the sludge collection tank, and a negative pressure pipe is connected between the sludge collection assembly and the negative pressure assembly.

[0015] Furthermore, the toilet is equipped with a supporting bracket inside, a clamp valve is installed at the bottom of the toilet, a water spray nozzle is opened inside the toilet, a water pipe is installed at the bottom of the water spray nozzle, a sewage outlet is opened at the bottom of the toilet, a sewage pipe is fixedly connected to the bottom of the sewage outlet, a clamp valve is fixedly connected to the outer surface of the sewage pipe, and the sewage pipe is fixedly connected to the fecal inlet.

[0016] Furthermore, a pneumatic angle valve is installed between the sewage inlet and the special toilet, and a solenoid valve assembly is installed at the bottom of the special toilet. The solenoid valve assembly is connected to the pneumatic angle valve, clamp valve one, and clamp valve two, respectively.

[0017] Furthermore, the negative pressure assembly includes a pressure boosting tank and a negative pressure generating device. The negative pressure generating device is installed on the top of the pressure boosting tank, and a negative pressure gauge is provided on the top of the negative pressure generating device. The negative pressure pipeline is fixedly connected to the pressure boosting tank, and a negative pressure solenoid valve is provided on the outer surface of the negative pressure pipeline.

[0018] Furthermore, a pressure gauge is installed on the top of the sludge collection tank, a flange is fixedly connected to the bottom of the sewage inlet, the flange is fixedly connected to the top of the sludge collection tank, a tank cover is fixedly connected to the top of the sludge collection tank, a support is provided at the bottom of the sludge collection tank, and a second sewage outlet is provided at the bottom of the sludge collection tank.

[0019] Furthermore, an air pump is installed on the left side of the sludge collection tank, and the air pump is connected to the controller in the control system. A water passage is provided on the front of the control system, and an air passage is provided on the front of the control system.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] 1. This water-saving toilet collection device for dry toilet renovation in water-scarce areas uses a control system to control an air pump to pressurize a booster tank for standby, and a negative pressure generator to create negative pressure for standby. Then, the booster tank controls the spray valve to spray water onto the toilet surface, which serves as a lubricant and facilitates the cleaning of feces. By opening clamp valve one and clamp valve two, the air inside the toilet bowl is extracted, creating a low-pressure zone. The external atmospheric pressure draws the feces from the toilet bowl into the collection tank. Subsequently, clamp valve one and clamp valve two are closed, and the booster tank controls the spray valve to spray water onto the toilet surface, sealing drain outlet one and drain outlet two. This achieves the effects of saving water and preventing backflow of fecal odor during water collection.

[0022] 2. This water-saving toilet collection device for the renovation of dry toilets in water-scarce areas has high efficiency: the negative pressure generated by the negative pressure generator quickly and effectively sucks the feces from the toilet collection box into the collection device, avoiding the problems of poor discharge and pipe blockage caused by gravity in traditional toilets.

[0023] Energy-saving and environmentally friendly: Compared to traditional flush toilets, this device significantly reduces water consumption, helping to conserve water resources. At the same time, its closed operating principle effectively prevents the spread of odors, improving the user environment. Self-circulating agitation accelerates fermentation.

[0024] Modular Design: The toilet system adopts a modular design, facilitating quick installation and maintenance. When repair or replacement is required, the faulty module can be replaced individually, greatly shortening repair time and reducing maintenance costs. Attached Figure Description

[0025] Figure 1 This is an overall structural diagram of the present utility model;

[0026] Figure 2 This is a diagram of a toilet with a specific structure for this utility model.

[0027] Figure 3 This is a front view of the sludge collection tank of this utility model.

[0028] Figure 4 The diagram shows the pressurization tank and the sludge collection tank of this utility model.

[0029] Figure 10 shows: 1. Dedicated toilet; 2. Matching bracket; 3. Pinch valve one; 4. Pneumatic angle valve; 5. Sewage collection tank; 6. Air pump; 7. Negative pressure generating device; 8. Booster tank; 9. Solenoid valve assembly; 10. Control system; 11. Air circuit; 12. Water circuit; 13. Spray nozzle; 14. Water pipe; 15. Flange; 16. Sewage outlet one; 17. Sewage pipe; 18. Pinch valve two; 19. Pressure gauge; 20. Flange; 21. Sewage inlet; 22. Negative pressure pipe one; 23. Tank body; 24. Sewage outlet two; 25. Bracket; 26. Tank cover; 27. Negative pressure gauge. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-4 This embodiment describes a water-saving toilet renovation device for dry toilets in water-scarce areas, which includes a special toilet 1 with a hydrophobic coating on the surface to solve the problem of feces sticking to the toilet; the drain outlet is very small, with a diameter of only 2.5cm, and water accumulates at the drain outlet to act as a water seal and prevent backflow of odor from the sewer pipe; the upper part of the toilet is equipped with spray nozzles to spray water onto the surface of the toilet.

[0032] The bottom of the special toilet 1 is equipped with a sludge collection component and a negative pressure component. The sludge collection component includes a sludge collection tank 5 for collecting and storing feces and wastewater. A fecal inlet 21 is fixedly connected to the top of the sludge collection tank 5, and a flange 20 is fixedly connected to the bottom of the fecal inlet 21. The flange 20 is fixedly connected to the top of the sludge collection tank 5. A pneumatic angle valve 4 is installed between the fecal inlet 21 and the special toilet 1. The pneumatic angle valve 4 is used to connect the pipes and the sludge collection tank 5. It controls the switch through a pneumatic signal to ensure the normal operation of the negative pressure system. A pressure gauge 19 is installed on the top of the sludge collection tank 5. The top of the fecal inlet 21 is fixedly connected to the bottom of the special toilet 1.

[0033] The top of the sludge collection tank 5 is fixedly connected to a tank cover 26, the bottom of the sludge collection tank 5 is provided with a support 25, the bottom of the sludge collection tank 5 is provided with a second sludge outlet 24, the front of the sludge collection tank 5 is equipped with a control system 10, and a negative pressure pipe 22 is connected between the sludge collection component and the negative pressure component.

[0034] The toilet 1 has a matching bracket 2 inside, which is used to fix the toilet and other components. The bottom of the toilet 1 is equipped with a clamp valve 3. The toilet 1 has a spray nozzle 13 inside, and a water pipe 14 is installed at the bottom of the spray nozzle 13. The bottom of the toilet 1 has a drain outlet 16, and a drain pipe 17 is fixedly connected to the bottom of the drain outlet 16. A clamp valve 18 is fixedly connected to the outer surface of the drain pipe 17. The bottom of the toilet 1 is equipped with a solenoid valve assembly 9, which is connected to the pneumatic angle valve 4, clamp valve 3, and clamp valve 18. The solenoid valve assembly 9 is used to control the flow of gas and liquid. It receives signals from the control system and controls the opening and closing of the pneumatic angle valve and clamp valve, thereby controlling the operation of the entire system.

[0035] The sewage pipe 17 is fixedly connected to the fecal inlet 21. The opening and closing of the sewage pipe 17 is controlled by pneumatic principle. When the toilet is not flushed, the clamp valve 1 3 and clamp valve 2 18 are closed to isolate the toilet 1 from the drain pipe and prevent the drain pipe from backflowing odor.

[0036] The negative pressure assembly includes a booster tank 8 and a negative pressure generating device 7. The negative pressure generating device 7 is installed on the top of the booster tank 8. The booster tank 8 balances the system pressure, increases water pressure, and reduces water consumption. A negative pressure gauge 27 is installed on the top of the negative pressure generating device 7. The negative pressure pipe 22 is fixedly connected to the booster tank 8. A negative pressure solenoid valve is installed on the outer surface of the negative pressure pipe 22. The negative pressure generating device 7 generates negative pressure by rapidly extracting air to create negative pressure, thereby sucking the feces into the sludge collection tank 5.

[0037] An air pump 6 is located on the left side of the sludge collection tank 5. The air pump 6 is connected to the controller in the control system 10. The control system 10 is the brain of the toilet system, responsible for monitoring and controlling the operation of the entire system. The control system can automatically adjust the automated operation of the entire system according to usage. It is the power source of the pressurization system, providing continuous positive pressure to the pressurization tank. Water passage 12 and air passage 11 are located on the front of the control system 10, and both water passage 12 and air passage 11 are connected to the bottom of the toilet bowl 1.

[0038] This embodiment addresses the problem of high water consumption and cost associated with traditional flushing methods in water-scarce areas. In some water-scarce regions, people conserve and value their domestic water, leaving little room for toilet flushing. Toilet flushing accounts for one-third of our domestic water consumption; older-style toilets use approximately 8 liters per flush, while newer toilets use approximately 6 liters. Therefore, using water-saving toilets can significantly conserve water resources.

[0039] It can solve the problem of insufficient water pressure in water-scarce areas, which makes it impossible to flush away feces: In water-scarce areas or areas with intermittent water supply, the common problem is insufficient water pressure and insufficient flushing volume, which causes feces to not be flushed away in time, or even blockage of pipes.

[0040] It can solve the problem of backflow odor from the sewer in flush toilets: Traditional toilets, due to their structure, cannot completely seal off the toilet from the septic tank and pipes, allowing the odor from the septic tank and sewer pipes to directly flow back into the toilet, resulting in a strong smell.

[0041] It can solve the problem of large sewage storage in septic tanks: The excessive amount of flushing water puts great pressure on the capacity of septic tanks and sewage treatment. On the one hand, larger septic tanks need to be built to store sewage, and on the other hand, greater sewage treatment capacity is needed to process this sewage.

[0042] In this embodiment, efficient collection is achieved by using the negative pressure generated by the negative pressure generating device 7 to quickly and effectively draw feces from the toilet collection box into the toilet collector 1, thus avoiding the problems of poor discharge and pipe blockage caused by gravity in traditional toilets.

[0043] Energy-saving and environmentally friendly: Compared to traditional flush toilets, this device significantly reduces water consumption, helping to conserve water resources. At the same time, its closed operating principle effectively prevents the spread of odors, improving the user environment. Self-circulating agitation accelerates fermentation.

[0044] Modular Design: The toilet system adopts a modular design, facilitating quick installation and maintenance. When repair or replacement is required, the faulty module can be replaced individually, greatly shortening repair time and reducing maintenance costs.

[0045] In this embodiment, the water-saving toilet device is a high-efficiency, water-saving fecal collection sanitary ware system mainly used in water-scarce areas. Each time you use the toilet, you only need a small amount of water (500ml) to flush the feces clean. With the help of negative pressure suction, the waste is quickly and cleanly transported to the collection tank for centralized treatment later. There is no need to use a lot of water to flush, thus achieving the purpose of saving water resources.

[0046] The toilet collection device consists of a special toilet 1, a negative pressure generating device 7, a booster tank 8, a pipe 21, a sludge collection tank 5, and a control system 10. Its working principle is based on negative pressure technology and water flow dynamics.

[0047] Modular design allows complex systems to be divided into independent modules, which are then integrated. Modular design means that each component can be designed, manufactured, and maintained as an independent unit. This approach makes the installation, maintenance, and upgrades of the septic tank system more flexible and efficient; while modular integration optimizes the design and saves costs. It eliminates the need for larger septic tanks and wastewater treatment systems, and, combined with subsequent separation and fermentation equipment, promotes green and sustainable development.

[0048] The working principle of the above embodiments is as follows:

[0049] This water-saving toilet collection device for dry toilet renovation in water-scarce areas uses a control system 10 to control an air pump 6 to pressurize a pressure tank 5 for standby, and a negative pressure generator to create a negative pressure for standby. Then, the pressure tank 8 controls a spray valve to spray water onto the surface of the toilet bowl 1, which serves as a lubricant and facilitates the cleaning of feces. By opening the clamp valve 3 and clamp valve 18, the air inside the toilet bowl is extracted, creating a low-pressure zone. The external atmospheric pressure draws the feces from the toilet bowl into the collection tank 5. Subsequently, clamp valve 3 and clamp valve 18 are closed, and the pressure tank 8 controls the spray valve to spray water onto the surface of the toilet bowl, sealing the drain outlet 16 and drain outlet 24. This achieves the effects of saving water and preventing the backflow of fecal odor during water-saving toilet collection.

[0050] It should be noted that all standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-saving toilet collection device for the renovation of dry toilets in water-scarce areas, comprising a special toilet (1), characterized in that: The bottom of the special toilet (1) is equipped with a dirt collection component and a negative pressure component; The sludge collection assembly includes a sludge collection tank (5), the top of which is fixedly connected to a fecal inlet (21), the top of which is fixedly connected to the bottom of a special toilet (1), a control system (10) is installed on the front of the sludge collection tank (5), and a negative pressure pipe (22) is connected between the sludge collection assembly and the negative pressure assembly.

2. The water-saving toilet collection device for the renovation of dry toilets in water-scarce areas according to claim 1, characterized in that: The special toilet (1) is equipped with a matching bracket (2) inside. The bottom of the special toilet (1) is equipped with a clamp valve (3). The special toilet (1) has a spray nozzle (13) inside. The bottom of the spray nozzle (13) is equipped with a water pipe (14). The bottom of the special toilet (1) has a sewage outlet (16). The bottom of the sewage outlet (16) is fixedly connected to a sewage pipe (17). The outer surface of the sewage pipe (17) is fixedly connected to a clamp valve (18). The sewage pipe (17) is fixedly connected to the fecal inlet (21).

3. A water-saving waste collection device for the renovation of dry toilets in water-scarce areas according to claim 1, characterized in that: A pneumatic angle valve (4) is provided between the sewage inlet (21) and the special toilet (1). A solenoid valve group (9) is provided at the bottom of the special toilet (1). The solenoid valve group (9) is connected to the pneumatic angle valve (4), clamp valve one (3) and clamp valve two (18) respectively.

4. A water-saving waste collection device for the renovation of dry toilets in water-scarce areas according to claim 1, characterized in that: The negative pressure assembly includes a pressure tank (8) and a negative pressure generating device (7). The negative pressure generating device (7) is installed on the top of the pressure tank (8). A negative pressure gauge (27) is provided on the top of the negative pressure generating device (7). The negative pressure pipeline (22) is fixedly connected to the pressure tank (8). A negative pressure solenoid valve is provided on the outer surface of the negative pressure pipeline (22).

5. A water-saving waste collection device for the renovation of dry toilets in water-scarce areas according to claim 1, characterized in that: A pressure gauge (19) is installed on the top of the sludge collection tank (5). A flange (20) is fixedly connected to the bottom of the sewage inlet (21). The flange (20) is fixedly connected to the top of the sludge collection tank (5). A tank cover (26) is fixedly connected to the top of the sludge collection tank (5). A bracket (25) is provided at the bottom of the sludge collection tank (5). A second sewage outlet (24) is provided at the bottom of the sludge collection tank (5).

6. A water-saving waste collection device for the renovation of dry toilets in water-scarce areas according to claim 1, characterized in that: An air pump (6) is provided on the left side of the sludge collection tank (5). The air pump (6) is connected to the controller in the control system (10). A water passage (12) is provided on the front of the control system (10). An air passage (11) is provided on the front of the control system (10).

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