Feces and urine treatment device integrating feces separation and quality-divided fermentation and flushing-free closestool

Abstract

The invention discloses an excrement and urine treatment device integrating excrement and sewage separation and quality-divided fermentation and a flushing-free closestool, and relates to the technical field of excrement and urine treatment. The excrement and urine treatment device comprises a solid-liquid separation mechanism, a flow guide pipeline and a quality-divided fermentation mechanism; the solid-liquid separation mechanism realizes physical separation of excrement and urine, and the flow guide pipeline separately conveys separated solid excrement and liquid urine to the corresponding fermentation units; the quality-divided fermentation mechanism comprises an excrement tank and a urine tank, microbial padding is arranged in the excrement tank, and the urine tank is integrated with an aeration mechanism and a membrane assembly to construct a synergistic denitrification system. The problems that in the field of excrement and urine treatment in the prior art, the energy efficiency is low due to the fact that the prior art generally depends on high-energy-consumption mechanical solid-liquid separation and distributed treatment units are solved. The system has the advantages that low-energy-consumption treatment of feces is achieved through source quality division and self-adaptive regulation and control, space integrated layout and nitrogen and phosphorus resource ecological circulation are synchronously achieved, and a sanitary and safe resource regeneration closed loop is constructed.

Description

Technical Field

[0001] This invention relates to the field of fecal and urine treatment technology, and in particular to a fecal and urine treatment device that integrates fecal and sewage separation and fractional fermentation, as well as a waterless toilet. Background Technology

[0002] In the field of fecal and urinary waste treatment, existing technologies generally rely on solid-liquid separation as a key pretreatment step. Mechanical separation equipment (such as screen filtration and screw extrusion) separates fecal waste into solid residue and liquid components, which are then processed independently. However, this system has significant drawbacks. On the one hand, the mechanical separation process requires continuous electric power, resulting in high energy costs and the separation equipment being easily clogged by fibrous impurities, leading to cumbersome maintenance. On the other hand, the dispersed layout of solid and liquid treatment units results in a large space occupation. This fragmented treatment model restricts the efficiency of fecal and urinary waste resource utilization.

[0003] Therefore, it is necessary to develop an integrated manure treatment device that achieves solid-liquid separation and fractional fermentation through structural coupling. This eliminates physical separation between devices and energy waste, allowing solid aerobic fertilizer production and liquid static composting to be completed simultaneously in a compact space, ultimately improving treatment efficiency in an intensive manner.

[0004] To address the above technical problems, this invention discloses a fecal and urine treatment device that integrates fecal and sewage separation and differential fermentation, as well as a waterless toilet. This invention has the advantages of achieving low-energy treatment of fecal and sewage through source differentiation and adaptive regulation, simultaneously achieving spatial integrated layout and ecological cycle of nitrogen and phosphorus resources, and constructing a hygienic and safe closed loop for resource regeneration. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a fecal and urinary treatment device that integrates fecal and urinary separation and fractional fermentation, as well as a waterless toilet. This addresses the technical problems in the field of fecal and urinary treatment, where existing technologies generally rely on high-energy-consuming mechanical solid-liquid separation and decentralized treatment units, resulting in low energy efficiency, space redundancy, and maintenance burdens. This invention has the advantages of achieving low-energy-consumption treatment of fecal and urinary waste through source fractionation and adaptive regulation, simultaneously achieving spatial integration layout and nitrogen and phosphorus resource ecological cycle, and constructing a hygienic and safe resource regeneration closed loop.

[0006] This invention is achieved through the following technical solution: This invention discloses a fecal and urine treatment device integrating fecal and sewage separation and fractional fermentation, including a solid-liquid separation mechanism, a guide pipe and a fractional fermentation mechanism; the solid-liquid separation mechanism realizes the physical separation of feces and urine, and the guide pipe distributes the separated solid feces and liquid urine to the corresponding fermentation unit; the fractional fermentation mechanism includes a feces tank and a urine tank, the feces tank is filled with microbial bedding material, and the urine tank integrates an aeration mechanism and a membrane module to construct a synergistic denitrification system.

[0007] Furthermore, the solid-liquid separation mechanism includes a squat toilet and a urinal; the squat toilet has a urine discharge hole at the front end and a feces discharge hole at the rear end, forming a dual-channel diversion; the urinal is set independently to ensure the purity of the urine source; the discharge hole of the squat toilet is equipped with a closed flip-top structure, which is normally sealed and automatically opens and closes during discharge.

[0008] Furthermore, in the separate fermentation mechanism, the fecal tank is vertically arranged below the squat toilet and directly connected to the fecal discharge hole through a gravity interface; the urine tank collects urine from the front hole of the squat toilet and the outlet of the urinal through a guide pipe; both tanks are buried underground.

[0009] Furthermore, the aeration mechanism includes a multi-stage diversion pipeline and a pressure-responsive adjustment mechanism; the multi-stage diversion pipeline includes an air supply trunk line, a tiered manifold, and a terminal diffuser; the pressure-responsive adjustment mechanism is integrated into the air inlet end of the terminal diffuser and achieves balanced aeration flow by dynamically adjusting the flow cross-sectional area.

[0010] Furthermore, the pressure-responsive regulating mechanism includes a pressure-responsive element and an orifice regulating element; the pressure-responsive element converts pressure fluctuations into deformation displacement through a mechanical transmission system; the orifice regulating element is driven by displacement to dynamically change the opening and closing degree of the guide channel, forming an adaptive mechanism of low-pressure expansion and high-pressure contraction.

[0011] Furthermore, the aperture adjustment component includes a fixed disk and a rotating disk; the fixed disk is coaxially fixed to the lower end of the intake column; the rotating disk is dynamically fitted to the fixed disk through an axial bearing; the two disks are symmetrically opened with fan-shaped guide grooves, and the overlapping area is changed by relative angular displacement.

[0012] Furthermore, the pressure response device includes an annular cylinder, a longitudinal displacement cylinder, and a motion conversion component; the bottom of the longitudinal displacement cylinder integrates a response disk to sense the pressure thrust; the motion conversion component converts the axial displacement of the longitudinal displacement cylinder into the tangential rotational torque of the annular cylinder.

[0013] Furthermore, the motion conversion component includes a spiral guide groove and a guide pin; the spiral guide groove is machined on the outer circumference of the annular cylinder; the guide pin is fixed to the inner wall of the longitudinal cylinder and nested in the spiral guide groove to realize the conversion from linear displacement to circular motion; a limiting guide rod is fixed to the top of the longitudinal cylinder, and the end of the limiting guide rod is provided with a T-shaped head and inserted into a stepped limiting insertion hole at the bottom of the air intake column; a spring assembly is provided between the longitudinal cylinder and the air intake column to provide a reset driving force.

[0014] Furthermore, the membrane module is suspended submerged inside the urine tank; the aeration network of the aeration mechanism is arranged directly below the membrane module, and a uniform flow of air bubbles is released through the microporous aeration disc to enhance airlift mass transfer.

[0015] A waterless toilet includes a fecal and urine treatment device that integrates fecal and sewage separation and separate fermentation.

[0016] The present invention has the following advantages:

[0017] (1) This invention achieves physical separation of excrement at the source through a fecal-urine separation toilet, avoiding the power dependence and blockage risk of traditional mechanical solid-liquid separation, and reducing processing energy consumption and maintenance costs; the feces are guided by gravity to fall directly into the fermentation tank, and the urine naturally flows into the urine storage tank. The dual-channel design eliminates the risk of mixing and builds an energy-saving foundation for zero-power transmission.

[0018] (2) The fermentation unit of this invention achieves spatial compact layout by underground burial. The microorganisms in the manure tank produce organic fertilizer efficiently through aerobic fermentation. The urine tank integrates an aeration and membrane-coordinated denitrification system, which simultaneously achieves pollution control and nitrogen resource recovery. The self-sealing toilet and dynamic aeration adjustment mechanism ensure hygiene and safety throughout the process, ultimately forming a closed loop of manure resource utilization, taking into account both environmental sustainability and agricultural reuse value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the aeration mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the pipeline system structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the main pipeline structure of the present invention;

[0023] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point A;

[0024] Figure 6 This is a schematic cross-sectional view of the diffuser tube structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point B;

[0026] Figure 8 This is a schematic diagram of the open structure of the guide channel of the present invention;

[0027] Figure 9 For the present invention Figure 7 A magnified schematic diagram of the structure at point C;

[0028] Figure 10 This is a schematic diagram of the semi-open structure of the guide channel of the present invention;

[0029] Figure 11 This is a schematic diagram of the self-sealing squat toilet structure of the present invention.

[0030] In the diagram: 1. Membrane module; 2. Aeration mechanism; 3. Aeration disc; 4. Air inlet column; 5. Differential pressure compensation port; 6. Pressure-responsive adjustment mechanism; 7. Response disc; 8. Limiting socket; 9. Solid-liquid separation mechanism; 901. Squat toilet; 902. Urinal; 10. Flow guide pipeline; 11. Sewage tank; 12. Urine tank; 13. Mixing assembly; 201. Blower; 202. Piping system; 2021. Main pipe; 2022, branch pipe; 2023, unit pipe; 2024, diffuser pipe; 601, orifice adjustment component; 602, air pressure response component; 611, fixed plate; 612, rotating plate; 613, guide channel; 621, annular cylinder; 622, longitudinal displacement cylinder; 623, motion conversion assembly; 624, limit guide rod; 625, spring assembly; 6231, guide pin; 6232, spiral guide groove. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments. In the description of the present invention, words such as "front", "rear", "left", and "right" that indicate orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0032] The embodiment discloses a fecal and urine treatment device that integrates fecal-sewage separation and fractional fermentation, such as Figures 1-11 As shown, the system includes a solid-liquid separation mechanism 9, a diversion pipeline 10, and a fractional fermentation mechanism. The solid-liquid separation mechanism 9 physically separates feces and urine at the source of urination, avoiding the electricity dependence of traditional spiral compression or screen filtration and reducing energy consumption. The diversion pipeline 10 distributes the separated solid feces and liquid urine to the corresponding fermentation units, forming an integrated processing chain that balances space efficiency and cost economy.

[0033] Specifically, the solid-liquid separation mechanism 9 includes a squat toilet 901 and a urinal 902; the squat toilet 901 has a urine discharge hole at the front end and a feces discharge hole at the rear end, realizing natural diversion during the excretion process; the independent urinal 902 is exclusively for male use, ensuring the purity of the urine source. The dual-channel design ensures that feces and urine follow separate paths, eliminating the risk of mixing.

[0034] The separate fermentation mechanism includes a fecal tank 11 and a urine tank 12. The fecal tank 11 is vertically positioned below the squat toilet 901 and is directly connected to the fecal discharge hole via a gravity interface, allowing fecal matter to slide down naturally. The urine tank 12 is arranged side by side and collects urine from the front hole of the squat toilet 901 and the outlet of the urinal 902 via a guide pipe. Both tanks are buried underground. The fecal tank 11 contains microbial bedding material, which initiates fermentation and transformation as soon as fecal matter enters the tank.

[0035] It should be noted that the 901 squat toilet uses a closed flip-top structure, with the drain hole normally sealed. The cover automatically opens during use and returns to a sealed state afterward, completely preventing exposure of feces and waste. It also simultaneously prevents odors from escaping, maintaining environmental hygiene.

[0036] With the above setup, this device achieves source separation of fecal matter and sewage through the solid-liquid separation mechanism 9. The feces are guided by gravity into the fermentation tank, where they are fermented together with the microbial bedding material to be transformed into organic fertilizer. The urine is collected in the urine storage tank for static composting and then returned to the field as a resource.

[0037] In actual use, due to the structural characteristics and usage limitations of the squat toilet 901, interpenetration of feces and urine occurs, causing some fecal residue to flow into the urine storage tank along with the urine. With continuous daily use, a mixture of suspended fecal matter and high ammonia nitrogen gradually forms in the urine tank 12. If this complex pollutant is directly returned to the field without denitrification treatment, the organic nitrogen in the mixture will continue to be converted into soluble nitrates through soil nitrification. These nitrates are highly mobile and difficult for crops to fully absorb, seeping into deeper layers with rainfall or irrigation, ultimately polluting groundwater and triggering a eutrophication chain reaction. Therefore, targeted denitrification of the mixed feces and urine is necessary to break the nitrogen pollution chain and ensure water resource security and the sustainability of the ecological cycle.

[0038] Therefore, in this embodiment, to improve the denitrification efficiency and resource recovery potential of mixed feces and urine, an aeration mechanism 2 and a membrane module 1 are integrated into the urine tank 12 to construct a synergistic denitrification system. The aeration mechanism 2 accelerates the hydrolysis of urea into ammonia nitrogen and degrades residual organic matter through forced oxygen supply, creating reaction conditions for deep denitrification. The membrane module 1 utilizes a selective osmosis mechanism to efficiently separate and convert ammonia nitrogen, simultaneously achieving directional nitrogen removal and resource recovery. The two form a closed-loop process through gas-liquid mass transfer and membrane interface reaction, achieving the dual goals of pollution control and nutrient cycling within a limited space.

[0039] Specifically, this embodiment adopts a split structure design; the membrane module 1 is immersed and suspended in the internal cavity of the urine tank 12, forming the core of the ammonia nitrogen separation reaction; the aeration equipment is independently arranged on the outside of the tank, and the gas is extended and transported into the tank through a closed pipeline; the aeration pipeline network is precisely arranged directly below the membrane module 1 to form a uniform bubble flow to enhance gas lift mass transfer.

[0040] The aeration pipeline system 202 adopts a multi-stage diversion architecture, including a main pipeline 2021, branch pipelines 2022, unit pipelines 2023, and diffuser pipelines 2024. The main pipeline 2021 connects to the output end of the blower 201; the branch pipeline 2022 is vertically connected to the end of the main pipeline 2021 and extends axially; the unit pipelines 2023 are arranged in an array at equal intervals along the axial direction of the branch pipelines 2022; multiple sets of diffuser pipelines 2024 are arranged longitudinally at the top of each unit pipeline 2023, and the upper end of the diffuser pipeline 2024 integrates an aeration disc 3. The airflow is diverted from the main pipeline 2021 to the branch pipelines 2022, distributed to the air distribution group through the unit pipelines 2023, and finally released as micron-sized bubbles through the aeration discs 3.

[0041] In actual gas circuit operation, high-pressure gas flow is diverted from the main gas supply line to the tiered manifold and injected into the aeration discs 3 via axially arranged terminal diffusers to generate microbubbles. However, as the gas flows through the manifold, energy gradient dissipation occurs due to friction along the pipe wall, causing the system pressure to decrease linearly along the flow direction. This imbalance in aeration intensity disrupts the homeostatic metabolic environment of microorganisms and affects the denitrification reaction.

[0042] To address the pressure drop imbalance in the tiered manifold and the uneven aeration issue mentioned above, this embodiment specifically optimizes the gas channel design between the branch pipe and the outlet pipe. Specifically, a differential pressure compensation hole 5 is installed at the air inlet end where the outlet pipe connects to the branch pipe, and a gradient flow cross-sectional area design is implemented along the axial direction of the branch pipe.

[0043] Specifically, a coaxial air inlet column 4 is fixedly connected in the middle section of the air outlet pipe. A differential pressure compensation hole 5 is axially opened inside the column. The differential pressure compensation hole 5 extends longitudinally through the upper and lower end faces of the air inlet column 4. A fluid passage is established between the branch pipe air chamber and the microporous aeration disc 3 pipe through this differential pressure compensation hole 5.

[0044] In addition, the cross-sectional area of ​​each differential pressure compensation hole 5 along the branch pipe axis is specifically set such that the cross-sectional area of ​​the near-end differential pressure compensation hole 5 (closer to the branch pipe) is smaller, while the cross-sectional area of ​​the far-end differential pressure compensation hole 5 (far from the branch pipe) is correspondingly larger.

[0045] The core logic of the above design lies in precisely controlling and limiting the near-end air output by reducing the area of ​​the near-end flow holes and increasing its local flow resistance, thus avoiding over-aeration. At the same time, by increasing the area of ​​the far-end flow holes, the far-end flow resistance is significantly reduced, effectively increasing the far-end air supply. This gradient distribution strategy cleverly balances the air output of each air outlet pipe at the near and far ends of the branch pipe, ultimately ensuring that the gas distribution entering the microporous aeration disc 3 is uniform, achieving uniform aeration within the system, and avoiding the deterioration of the internal water environment caused by local air volume differences.

[0046] Through the above design, although the differential pressure compensation orifice 5 with gradient design can effectively balance the gas volume at the beginning and end of the branch pipe under stable operating conditions, its fixed orifice structure has a fundamental defect in adapting to dynamic pressure fluctuations. For example, when the main gas supply system experiences a global gas pressure decay due to external interference (such as blower filter blockage or power fluctuations), the static compensation mechanism will immediately fail. The core contradiction lies in the uncontrollability of nonlinear decay. Specifically, when the overall gas pressure drops, it will significantly amplify the negative impact of the friction resistance along the branch pipe. When the main pressure decays, the differential pressure decay rate at the end of the branch pipe is much higher than that at the beginning, resulting in a collapse-like drop in the differential pressure at the end.

[0047] The fixed orifice setting cannot cope with this change. Since the cross-sectional area of ​​the differential pressure compensation orifice 5 is fixed after manufacturing, and although the end compensation orifice has the advantage of a large orifice, it loses its ability to increase air volume due to excessive pressure decay. Therefore, the static gradient design can only match specific pressure conditions. When the main gas pressure fluctuates, the end air supply capacity decreases rapidly with the pressure difference. The compensation relationship of the initial design deteriorates in reverse, exacerbating the imbalance. The above fixed gradient compensation design cannot dynamically adjust the orifice relationship with the gas pressure. Under pressure fluctuation conditions, it not only cannot maintain uniform aeration, but also amplifies the difference in air volume between the beginning and end.

[0048] To address the failure of fixed compensation orifices under pressure fluctuations, this embodiment sets the flow cross-sectional area of ​​the differential pressure compensation orifice 5 to be dynamically adjustable. Specifically, a pressure-responsive adjustment mechanism 6 is integrated at the inlet end of each outlet pipe, enabling the flow cross-sectional area of ​​the differential pressure compensation orifice 5 to be variable in real time. This pressure-responsive adjustment mechanism 6 adjusts by sensing local pressure changes in the branch pipe. More specifically, under low-pressure conditions, it automatically expands the cross-sectional area of ​​the compensation orifice to reduce flow resistance and increase the air volume at the attenuation end. Under high-pressure conditions, it contracts the cross-sectional area to increase local resistance and suppress excess airflow. This allows the differential pressure compensation orifice 5 at each outlet pipe to independently respond to pressure changes at its location, forming a distributed adaptive system along the branch pipe axis. When the main pipe pressure fluctuates, the time-varying effects of pressure drop along the pipe are offset in real time by dynamically reconstructing the orifice gradient relationship, ensuring uniform aeration flow.

[0049] Specifically, the core components of the pressure-responsive regulating mechanism 6 include a pressure-responsive element 602 and an orifice regulating element 601. The orifice regulating element 601 is integrated below the differential pressure compensation orifice 5 and is used to directly control the flow area of ​​the differential pressure compensation orifice 5. The pressure-responsive element 602 is axially arranged below the orifice regulating element 601 and is used to capture pipeline pressure fluctuations in real time and output the driving displacement. The specific mechanism is that the pressure-responsive element 602 converts the pressure signal into deformation displacement through a mechanical transmission system, which vertically drives the upper orifice regulating element 601 to move, so as to realize the adaptive adjustment of the flow area with the air pressure (expansion at low pressure and contraction at high pressure).

[0050] In this embodiment, referring specifically to Figures 1-2, the core structure of the aperture adjustment component 601 includes a fixed disk 611, a rotating disk 612, and a guide groove 613. The fixed disk 611 is coaxially fixed to the lower end of the intake column 4, and its outer diameter is precisely smaller than that of the intake column 4. The rotating disk 612 is rotatably positioned below the fixed disk 611 and dynamically engages with the fixed disk 611 via an axial bearing. The rotating disk 612 and the fixed disk 611 are concentric. A Teflon sealing ring is provided between the upper surface of the rotating disk 612 and the lower surface of the fixed disk 611 to ensure an airtight fit. Both the fixed disk 611 and the rotating disk 612 have two guide channels 613 running through their interiors. Specifically, the guide channels 613 are fan-shaped channels arranged in a symmetrical ring array around the axis. Under normal conditions, the guide channels 613 of the two disks completely overlap to form the maximum flow cross section. The air pressure response component 602 converts the air pressure displacement through the mechanical transmission system, driving the rotating disk 612 to generate angular displacement around the axis, dynamically changing the overlapping area of ​​the guide channels 613 of the fixed disk 611 and the rotating disk 612, thereby realizing continuous stepless adjustment of the flow cross section and achieving dynamic adaptive correction of the flow rate.

[0051] The adjustment mechanism described above achieves precise mapping of pressure and area through directional angle follow-up design. When the main gas pressure increases, the gas pressure response component 602 drives the rotating disk 612 to generate angular displacement, causing the overlapping area of ​​the fan-shaped guide groove 613 of the fixed disk 611 and the rotating disk 612 to decrease linearly. Conversely, when the gas pressure decreases, the overlapping area of ​​the double disk guide groove 613 expands inversely, thereby establishing a two-way anti-disturbance control closed loop where the gas pressure rises, causing the opening to decrease, thus stabilizing the flow rate, and the gas pressure falls, causing the opening to increase, thus achieving continuous adaptive balance of the flow cross-sectional area throughout the entire operating range.

[0052] The core structure of the air pressure response component 602 includes an annular cylinder 621, a longitudinal displacement cylinder 622, a motion conversion component 623, a limiting guide rod 624, and a spring assembly 625. The annular cylinder 621 is fixed below the rotating disk 612 and is concentric with it. The inner diameter of the annular cylinder 621 is precisely larger than the maximum envelope diameter of the guide groove 613 to ensure that the annular cylinder 621 always has zero obstruction to the flow cross section. The longitudinal displacement cylinder 622 and the annular cylinder 621 form a dynamic sealing sleeve. A sealing ring can be set at the sleeve of the longitudinal displacement cylinder 622 and the annular cylinder 621 to achieve dynamic sealing.

[0053] The bottom of the longitudinal displacement cylinder 622 integrates a large-diameter response disk 7, which multiplies the driving force by changes in air pressure. The longitudinal displacement cylinder 622 and the annular cylinder 621 achieve precise conversion between longitudinal displacement and rotational motion through the motion conversion component 623. When the air pressure pushes the response disk 7 upward, the longitudinal displacement cylinder 622 drives the annular cylinder 621 to rotate through the motion conversion component 623, thereby dynamically adjusting the opening and closing degree of the guide groove 613 through circumferential angular displacement.

[0054] To ensure motion accuracy and safety redundancy, a T-shaped limiting guide rod 624 in a ring array is fixed to the top of the longitudinal moving cylinder 622. A stepped limiting insertion hole 8 is preset at the bottom of the air intake column 4. The end of the limiting guide rod 624 is precision machined to form a T-head structure. The large-diameter end of the limiting guide rod 624 is inserted into the limiting insertion hole 8. The inner diameter of the opening of the limiting insertion hole 8 is smaller than its large-diameter end, thereby achieving axial motion constraint and anti-disengagement guarantee.

[0055] A spring assembly 625 is also provided between the longitudinal displacement cylinder 622 and the air inlet column 4. The spring assembly 625 is used to apply a continuous downward axial force so that the system automatically resets to the fully open state of the guide channel 613 under zero air pressure conditions, that is, the double-disc guide channels 613 are completely overlapped. When gas is introduced into the branch pipe, the pressure difference distribution along the path causes the response disk 7 at each air outlet pipe to bear the differential air pressure thrust, which in turn drives each longitudinal displacement cylinder 622 to generate stroke stages. The motion conversion component 623 calculates it into the differential angular displacement of the rotating disk 612, and finally realizes the precise adaptive adjustment of the flow area of ​​each air outlet end in the axial direction of the branch pipe, so as to achieve dynamic balance of aeration intensity.

[0056] In this embodiment, the spring assembly 625 is configured as a helical spring, with both ends of the helical spring abutting against the bottom surface of the air intake column 4 and the top surface of the longitudinal displacement cylinder 622, respectively, and the spring is sleeved on the outside of the limiting guide rod 624.

[0057] Through the above design, when gas is introduced into the branch pipe, the pressure difference distribution along the pipe causes the response disk 7 at each outlet pipe to experience differential pressure thrust. The pressure thrust on the response disk 7 in the near-high pressure zone is relatively large, so the near-high pressure zone response disk 7 produces significant longitudinal displacement. Through the motion conversion component 623, the rotating disk 612 is linked to achieve a large deflection, so that the overlapping area of ​​the double-disc guide channel 613 presents a contraction-type coverage, actively reducing the flow cross section and suppressing the near-end overflow. At the same time, the pressure thrust on the response disk 7 in the far-low pressure zone is relatively small, so it only causes a slight displacement of the response disk 7 in the far-low pressure zone. The rotating disk 612 maintains a small angle posture, and the overlapping area of ​​the guide channel 613 tends to be maximized to ensure sufficient gas to pass through and compensate for the end attenuation. This process uses the linear proportionality between stroke and rotation angle to convert the pressure difference into a differentiated coverage angle of the rotating disk 612. The high pressure zone reduces the opening by expanding the coverage area, and the low pressure zone increases the opening by reducing the coverage area. Finally, the axial gradient flow balance of the branch pipe is automatically reconstructed in the gas pressure fluctuation.

[0058] The core of the motion conversion component 623 includes a spiral guide groove 6232 and a guide pin 6231. A continuous spiral groove is precisely machined on the outer circumference of the annular cylinder 621, and the groove trajectory integrates axial lift and tangential deflection. A high-strength alloy pin is fixed to the inner wall of the longitudinal cylinder 622, and its end is nested in the groove track of the spiral guide groove 6232 with a clearance fit. When the longitudinal cylinder 622 is driven to move axially by air pressure, the guide pin 6231 forcibly guides it along the groove trajectory, decomposing the longitudinal thrust into the tangential rotational torque of the annular cylinder 621, achieving precise conversion between linear displacement and circular motion. When the system stops working, the spring assembly 625 pulls the longitudinal cylinder 622 downward, and the guide pin 6231 slides in the opposite direction along the groove, driving the annular cylinder 621 to rotate, causing the rotating disk 612 to reset to its initial fully open position. Throughout the process, trajectory constraints eliminate idle error.

[0059] It is worth noting that, to optimize the aerobic fermentation efficiency within the manure tank 11, this device integrates an aeration mechanism 2 and a mechanical stirring component 13. The aeration mechanism 2 continuously supplies oxygen through a bottom microporous aeration disc, activating microbial metabolic activity and dispersing harmful gases such as hydrogen sulfide. The stirring component 13 periodically turns the material using an auger-type rotating arm, breaking up the tendency of high-solids-content manure sludge to clump and reconstructing the pore structure to improve oxygen diffusion efficiency. The synergistic effect of these two components forms a dual intervention mechanism of pneumatic disturbance and mechanical cell disruption, ensuring sufficient contact between the three phases of microorganisms, oxygen, and substrate, and guaranteeing the maturity of the organic fertilizer.

[0060] A waterless toilet includes the solid-liquid separation mechanism 9, the flow guide pipe 10, and the fractional fermentation mechanism described in the above embodiments.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fecal and urine treatment device integrating fecal-sewage separation and fractional fermentation, characterized in that, It includes a solid-liquid separation mechanism (9), a flow guide pipe (10), and a fractional fermentation mechanism; the solid-liquid separation mechanism (9) realizes the physical separation of feces and urine, and the flow guide pipe (10) distributes the separated solid feces and liquid urine to the corresponding fermentation unit; the fractional fermentation mechanism includes a feces tank (11) and a urine tank (12), the feces tank (11) is filled with microbial bedding material, and the urine tank (12) integrates an aeration mechanism (2) and a membrane module (1) to construct a synergistic denitrification system.

2. The integrated fecal-sewage separation and fractional fermentation fecal-urine treatment device as described in claim 1, characterized in that, The solid-liquid separation mechanism (9) includes a squat toilet (901) and a urinal (902); the squat toilet (901) has a urine discharge hole at the front end and a feces discharge hole at the rear end, forming a dual-channel diversion; the urinal (902) is set independently to ensure the purity of the urine source; the discharge hole of the squat toilet (901) is equipped with a closed flip-top structure, which is normally sealed and automatically opens and closes during discharge.

3. The integrated fecal-sewage separation and fractional fermentation device for treating feces and urine as described in claim 1, characterized in that, In the fractional fermentation mechanism, the fecal tank (11) is vertically arranged below the squat toilet (901) and directly connected to the fecal discharge hole through a gravity interface; the urine tank (12) collects the urine from the front hole of the squat toilet (901) and the outlet of the urinal (902) through a guide pipe; both tanks are buried underground.

4. The integrated fecal-sewage separation and fractional fermentation fecal-urine treatment device as described in claim 1, characterized in that, The aeration mechanism (2) includes a multi-stage diversion pipeline and a pressure-responsive adjustment mechanism (6); the multi-stage diversion pipeline includes an air supply trunk line, a hierarchical manifold and a terminal diffuser; the pressure-responsive adjustment mechanism (6) is integrated into the air inlet of the terminal diffuser and achieves balanced aeration flow by dynamically adjusting the flow cross-sectional area.

5. The integrated fecal-sewage separation and fractional fermentation device for treating feces and urine as described in claim 4, characterized in that, The pressure-responsive regulating mechanism (6) includes a pressure-responsive element (602) and an aperture regulating element (601); the pressure-responsive element (602) converts pressure fluctuations into deformation displacement through a mechanical transmission system; the aperture regulating element (601) is driven by displacement to dynamically change the opening degree of the guide groove (613), forming an adaptive mechanism of low-pressure expansion and high-pressure contraction.

6. The integrated fecal-sewage separation and fractional fermentation device for treating feces and urine as described in claim 5, characterized in that, The aperture adjustment component (601) includes a fixed disk (611) and a rotating disk (612); the fixed disk (611) is coaxially fixed to the lower end of the air intake column (4); the rotating disk (612) is dynamically attached to the fixed disk (611) through an axial bearing; the two disks are symmetrically opened with fan-shaped guide grooves (613), and the area of ​​the overlapping area is changed by the relative angular displacement.

7. The integrated fecal-sewage separation and fractional fermentation device for treating feces and urine as described in claim 5, characterized in that, The pressure response device (602) includes an annular cylinder (621), a longitudinal cylinder (622), and a motion conversion component (623); the bottom of the longitudinal cylinder (622) integrates a response disk (7) to sense the pressure thrust; the motion conversion component (623) converts the axial displacement of the longitudinal cylinder (622) into the tangential rotational torque of the annular cylinder (621).

8. The integrated fecal-sewage separation and fractional fermentation device for treating feces and urine as described in claim 7, characterized in that, The motion conversion component (623) includes a spiral guide groove (6232) and a guide pin (6231); the spiral guide groove (6232) is machined on the outer circumference of the annular cylinder (621); the guide pin (6231) is fixed to the inner wall of the longitudinal cylinder (622) and nested in the spiral guide groove (6232) to realize the conversion from linear displacement to circular motion; a limiting guide rod (624) is fixed to the top of the longitudinal cylinder (622), and the end of the limiting guide rod (624) is provided with a T-shaped head and inserted into the stepped limiting insertion hole (8) at the bottom of the air intake column (4); a spring assembly (625) is provided between the longitudinal cylinder (622) and the air intake column (4) to provide a reset driving force.

9. The integrated fecal-sewage separation and fractional fermentation device for treating feces and urine as described in claim 1, characterized in that, The membrane module (1) is suspended in the internal cavity of the urine tank (12) in an immersed manner; the aeration network of the aeration mechanism (2) is arranged directly below the membrane module (1), and a uniform bubble flow is released through the microporous aeration disc (3) to enhance the gas lift mass transfer.

10. A waterless toilet, characterized in that, The device includes an integrated fecal-sewage separation and fractional fermentation device as described in any one of claims 1-9.

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