CN112607869B - Plant filter tank and method suitable for ecological toilet flushing water treatment - Google Patents

Abstract

The invention provides a plant filter tank and a method suitable for the treatment of flushing water of an ecological toilet, comprising a filter tank and a purified water storage tank, wherein the flushing water flows into one end of the filter tank through a second guide pipe and flows into the purified water storage tank from the other end of the filter tank through a third guide pipe, and the filter tank is sequentially provided with a gravel layer, a zeolite layer and a plant layer from bottom to top.

Description

Plant filter tank and method suitable for ecological toilet flushing water treatment

Technical Field

The invention relates to the technical field of public health equipment, in particular to a plant filter tank and a method suitable for ecological toilet flushing water treatment.

Background

The ecological toilet is one kind of environment protecting toilet, and is one kind of toilet with no environmental pollution, full utilization of various kinds of resource, self-cleaning pollutant and resource reusing concept and function.

The ecological toilet not only reduces or eliminates the environmental pollution caused by human excrement, but also reduces the dependence of the toilet on external resources, saves resources, expands the application range of the toilet and improves the living standard of people. However, when the existing ecological toilet operates, the separation of the excrement and the urine is mainly completed by the excrement and urine separation device, but the separated flushing water cannot be effectively treated, so that a large amount of flushing water is changed into waste water, the burden is increased for water supply treatment, and the waste of water resources is caused.

Patent document 211111476U discloses a toilet feces-water separation washing water and solid-phase harmless treatment device, which comprises a feces-water separation device for feces-water separation, a solid-phase treatment device connected with the feces-water separation device, a separated liquid treatment system connected with the feces-water separation device, and a purification treatment system connected with the separated liquid treatment system. Through the order that air supporting device, charge device, first settlement device, degassing unit, second subside device, meticulous processing apparatus connect gradually to be handled the parting liquid, carry out disinfection and isolation to the parting liquid, the parting liquid after the processing is free from the peculiar smell, and clean can be used to wash the lavatory water, but this project organization is complicated, invests in great.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a plant filter tank and a method suitable for treating flushing water of an ecological toilet.

The plant filter tank suitable for the flushing water treatment of the ecological toilet comprises a filter tank 20 and a purified water storage tank 45;

the washing water flows into one end of the filter tank 20 through the second draft tube 23 and flows into the purified water storage tank 45 from the other end of the filter tank 20 through the third draft tube 31;

the filter 20 is provided with a gravel layer 24, a zeolite layer 25 and a plant layer 26 from bottom to top in sequence.

Preferably, the filter 20 is provided with a plurality of layers of partition plates 27 at intervals in sequence along the flow direction of the washing water, so that the filter 20 is divided into a plurality of flow areas, and the washing water can flow in a serpentine direction.

Preferably, the level of the falling water entering the filter chamber 20 through the second flow pipe 23 is higher than the overflow level of the third flow pipe 31.

Preferably, emergent aquatic plants are adopted as the plant layer 26, and the emergent aquatic plants are uniformly or non-uniformly planted in the filter chamber 20.

Preferably, the second flow guide pipe 23 enters the bottom of the filter tank 20 through a plurality of water inlet pipelines connected in parallel;

the third flow guide pipes 31 are arranged in parallel at intervals.

Preferably, the filter 20 and the purified water storage tank 45 are arranged in a buried manner.

Preferably, the zeolite layer 25 is filled with a zeolite matrix.

Preferably, the gravel layer 24 is packed with a gravel matrix.

The method for processing the flushing water of the ecological toilet, provided by the invention, comprises the following steps:

horizontal purification step: enabling washing water to enter from the bottom of one side of the filter 20, enabling the washing water to flow along a curved path in a horizontal direction in a blocking mode, and enabling the washing water to flow out from the top of the other side of the filter 20;

a vertical purification step: the washing water enters from the bottom of one side of the filter chamber 20, passes through the gravel layer 24, the zeolite layer 25 and the plant layer 26 in sequence in a layered mode and flows out from the top of the other side of the filter chamber 20.

Preferably, the curved path takes a serpentine path and the barrier takes the form of a plurality of spaced-apart baffles 27.

Compared with the prior art, the invention has the following beneficial effects:

1. the plant filter tank is combined with the household toilet, so that the purified flushing water is collected and reused, the flushing water type toilet does not waste water, the structure is simple, the investment is low, and the water resource is saved.

2. The invention adopts the clapboard to prolong the flow path of the flushing water in the plant filter tank, and is provided with the composite flow artificial wetland comprising the gravel layer, the zeolite layer and the plant layer, thereby effectively removing nitrogen, phosphorus and organic matters in the flushing water and obtaining better purification effect.

3. When the plant filter is designed, the plant filter and the purified water storage tank can be installed in a buried manner according to specific application scenes, and an effective anti-freezing effect can be achieved.

4. The invention can be applied to various scenes such as a rural flat-room type public toilet, a scenic spot continuous-discharge public toilet, a building type household toilet and the like, and has wide application range.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic side cross-sectional view of the present invention;

FIG. 2 is a schematic perspective view of the two-stage receiving sealing system in one direction when the first receiving plate is opened;

FIG. 3 is a schematic perspective view of the secondary socket sealing system in another orientation with the first socket plate open;

FIG. 4 is a schematic perspective view of the secondary socket sealing system in one direction with the first socket plate closed;

FIG. 5 is a schematic perspective view of the secondary socket sealing system in another orientation with the first socket plate closed;

FIG. 6 is a side view of the carriage;

FIG. 7 is a side view of the toilet body;

FIG. 8 is a top view of the toilet body;

FIG. 9 is a schematic view of the connection between the first air duct and the main body of the toilet;

FIG. 10 is a schematic side view of a manure storage jar;

FIG. 11 is a schematic view of the overall structure of the ecological toilet;

FIG. 12 is a schematic perspective view of a plant filter system;

fig. 13 is a top view of a plant filter system.

The figures show that:

gravel layer 24 of reservoir 1

Toilet main body 2 zeolite layer 25

Vent 3 plant layer 26

Partition 27 of exhaust fan 4

Feces suction opening 28 of first air duct 5

Exhaust port 29 of first motor 6

First screw 7 liquid flow direction control valve 30

First guide rail 8 and third flow guide pipe 31

First bearing plate 9 bearing bracket 32

Second bearing plate 10 and second air duct 33

Seal ring 11 acid adding port 34

Control button 12 dirt cleaning port 35

Liquid level radar 36 of excrement pumping pipeline 13

Excrement dropping port 37 of urethral catheterization groove 14

Backup port 38 of catheter 15

First draft tube 16 first rain hat 39

Excrement storage jar 17 second rain-proof cap 40

Second motor 41 of urine storage barrel 18

Second lead screw 42 of toilet lid 19

Second guide rail 43 of filter 20

Manhole 44 for examining and repairing inner wall 21 of toilet main body

Toilet seat 22 purified water storage tank 45

Second flow guide pipe 23

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

The invention provides a plant filter tank suitable for the treatment of flushing water of an ecological toilet, which comprises a filter tank 20 and a purified water storage tank 45 as shown in figures 1 to 13, wherein flushing water flows into one end of the filter tank 20 through a second guide pipe 23 and flows into the purified water storage tank 45 from the other end of the filter tank 20 through a third guide pipe 31, and the filter tank 20 is sequentially provided with a gravel layer 24, a zeolite layer 25 and a plant layer 26 from bottom to top. The flushing water flows into the bottom of the filter 20 through the second guide pipe 23, sequentially passes through the gravel layer 24, the zeolite layer 25 and the plant layer 26, keeps a certain hydraulic retention time, achieves the aim of flushing water purification, and is discharged to the adjacent purified water storage tank 45 from the water outlet of the third guide pipe 31.

The single flushing of the flushing water in the invention is 200-250ml, the water quantity is not large, the purified water in the purified water storage tank 45 can be effectively collected and used as cleaner water for secondary utilization, the invention has greater significance for saving water in areas with relative water shortage, and simultaneously embodies the water-saving property of the plant filter tank for treating the micro-flush ecological toilet flushing water.

Specifically, the filter 20 and the purified water storage tank 45 are buried, so that the freeze protection can be effectively realized.

Furthermore, the filter chamber 20 is sequentially provided with a plurality of layers of partition plates 27 at intervals along the flowing direction of the washing water so that the filter chamber 20 is divided into a plurality of flowing areas and the washing water can flow in a serpentine direction.

In the invention, the height of the water falling into the filter 20 through the second flow guide pipe 23 is higher than the overflow height of the third flow guide pipe 31, so that flushing water can be effectively ensured to smoothly flow into the filter 20, and the flowing flushing water has a tendency of penetrating through substrates of each layer. In a preferred embodiment, the second flow guide pipe 23 enters the bottom of the filter chamber 20 through a plurality of parallel water inlet pipelines, and the third flow guide pipes 31 are arranged in parallel at intervals.

Specifically, the plant layer 26 is made of emergent aquatic plants, the emergent aquatic plants are uniformly or non-uniformly planted in the filter 20, the zeolite layer 25 is filled with a zeolite matrix, the zeolite flow plant filter has the best denitrification effect, the denitrification rate can reach more than 60% when the hydraulic retention time of washing water is 1d, the removal rate of nitrogen can be improved by adopting the zeolite matrix, the gravel layer 24 is filled with a gravel matrix, the dephosphorization effect of the gravel flow plant filter is best, the dephosphorization rate of phosphorus can reach more than 70% when the hydraulic retention time of the washing water is 1d, and the removal rate of phosphorus can be improved by adopting the gravel matrix. Research shows that the layered matrix has better treatment effect than non-layered matrix, and nitrogen, phosphorus and organic matters in the flushing water can be effectively removed through the arrangement of the multiple layers of the matrix, so that a better purification effect is obtained.

The invention also provides a method suitable for treating flushing water of an ecological toilet, which comprises the following steps:

horizontal purification step: the method comprises the following steps that flushing water enters from the bottom of one side of a filter tank 20, flows along a curved path in the horizontal direction in a blocking mode and flows out from the top of the other side of the filter tank 20, the curved path adopts a snake-shaped path, and the blocking adopts a plurality of layers of partition plates 27 arranged at intervals;

a vertical purification step: the washing water enters from the bottom of one side of the filter chamber 20, passes through the gravel layer 24, the zeolite layer 25 and the plant layer 26 in sequence in a layered mode and flows out from the top of the other side of the filter chamber 20.

In practical application, the organic wastewater such as hand washing water, bath water, laundry water and the like is collected and treated, and then enters the plant filter tank, the plant filter tank is separated by the partition plate and flows to the purified water collecting tank for recycling after being treated with toilet flushing water respectively, so that the ecological garden is good in application prospect and is a residential area to form an ecological garden.

The plant filter tank is suitable for treating flushing water in an ecological toilet, the flushing water can be recycled, water resources are saved, the plant filter tank is connected with a bedpan system in the ecological toilet through a pipeline, the ecological toilet further comprises a bedpan system, a liquid guide switching system, a secondary receiving and sealing system, a ventilation system, a liquid storage system and a control system, the liquid storage system comprises a feces storage unit and a urine storage unit, the bedpan system is connected with the feces storage unit, the secondary receiving and sealing system is mounted on the bedpan system, the ventilation system is connected with the secondary receiving and sealing system, the bedpan system is respectively connected with the filter tank 20 and the urine storage unit through the liquid guide switching system, the control system is respectively and electrically connected with the bedpan system, the liquid guide switching system, the secondary receiving and sealing system and the ventilation system, the ecological toilet collects feces, urine, flushing water and toilet articles from the source respectively, differential storage and treatment are a quaternary separation design scheme, the separation of feces and urine is realized, the separation of the urine and the flushing water is realized, the aim of minimizing treatment is achieved to the excrement, the sanitary and the sewage treatment is necessary to reduce the sewage pollution-free resources, and the practicability is high.

The two-stage bearing and sealing system comprises a first push-pull mechanism, a second push-pull mechanism and a sealing ring 11, the sealing ring 11 is preferably of a circular tubular structure with the diameter of 15 cm and the height of 10 cm, the top of the sealing ring 11 is connected with the first push-pull mechanism, the bottom of the sealing ring 11 is connected with a feces storage unit, the second push-pull mechanism is arranged between the feces storage unit and the first push-pull mechanism, a first containing space is defined by the first push-pull mechanism, the second push-pull mechanism and the sealing ring 11, the first push-pull mechanism and the second push-pull mechanism can be switched between an open state and a closed state, when the first push-pull mechanism is in the open state, the first containing space is communicated with the outside through a toilet bowl main body 2 of a toilet bowl system, when the second push-pull mechanism is in the open state, the first containing space is communicated with the feces storage unit, and when the first push-pull mechanism and the second push-pull mechanism are both in the closed state, the first containing space is a closed space and is connected with the first containing ventilation system. The two-stage sealing mode of the two-stage bearing plate is adopted, so that the damage of pathogenic bacteria in excrement to a human body is effectively blocked, the risk caused by the spread of an excrement opening is avoided, the prevention of diseases is vital, the human health is effectively protected, the emission of smell is prevented, and the environment is protected.

Specifically, the drainage switching system includes a drainage channel 14, a drainage tube 15, a first drainage tube 16, a second drainage tube 23, and a liquid flow direction control valve 30, one end of the drainage tube 15 is connected to the drainage channel 14, the other end of the drainage tube 15 is respectively connected to the first drainage tube 16 and the second drainage tube 23 through the liquid flow direction control valve 30, and the liquid flow direction control valve 30 is electrically connected to the control system.

Specifically, the first push-pull mechanism includes a first motor 6, a first lead screw 7, two first guide rails 8, a first receiving plate 9, a first scraper blade and a bearing frame 32, the two first guide rails 8 are installed on two sides of the bearing frame 32 in parallel, the first motor 6 is connected with the first receiving plate 9 through the first lead screw 7 and can drive the first lead screw 7 to drive the first receiving plate 9 to move, two ends of the first scraper blade respectively span two ends of the first receiving plate 9 and are installed on the bearing frame 32, a bottom edge of the first scraper blade is in contact with the first receiving plate 9 and can scrape the upper surface of the first receiving plate 9 when the first receiving plate 9 moves, the second push-pull mechanism includes a second motor 41, a second lead screw 42, two second guide rails 43, a second receiving plate 10 and a second scraper blade 44, the two second guide rails 43 are installed on two sides of the bearing frame 32 in parallel, the second motor 41 is connected with the second receiving plate 10 through the second lead screw 42 and can drive the second lead screw 42 to drive the second receiving plate 10, the second guide rails 43 and the second scraper blade 44 are installed on two ends of the second receiving plate 32 and can control the motion of the second motor 41 and the second receiving plate 10, and the second scraper blade 10, and the sealing ring 10 can be controlled by the motor 10, and the control system, and the motor 10, and the sealing ring 41.

In addition, the end of the first receiving plate 9 facing the urine guide groove 14 has a downward inclination angle, such as 3 °, and further such as 7 °, so that when a user urinates, urine can flow into the urine guide groove 14 along the inclined first receiving plate 9 and further into the urine storage barrel 18. The urine storage barrel 18 is detachable, and when the urine storage barrel 18 is full, the urine storage barrel 18 can be replaced by a spare urine storage barrel 18 and the full urine storage barrel 18 can be transported away for disposal. The edge of the first bearing plate 9 extends to the upper part of the central position of the urine guide groove 14, so that urine naturally flows into the urine guide groove 14 along the inclined flow direction, and meanwhile, the gap between the first bearing plate 9 and the urine guide groove 14 enables the first accommodating space with the micro negative pressure environment to suck the air inside the toilet bowl main body 2, and further the air is ensured to be fresh.

Specifically, the bedpan system includes water storage tank 1, toilet bowl main part 2 and toilet lid 19, the rotatable installation of toilet lid 19 install induction system in the pivot on toilet bowl main part 2, when toilet lid 19 is opened, touch induction system and then control system control exhaust fan 4 start-up operation, when toilet lid 19 closed, touch induction system and then control system control exhaust fan 4 stall. The water storage tank is characterized in that a water tank water inlet channel and a water tank water outlet channel are arranged on the water storage tank 1, a submersible pump is arranged inside the water storage tank, an outlet of the submersible pump is connected with a toilet water spraying opening on the inner wall 21 of the toilet main body through the water tank water outlet channel, the water storage tank 1 is flexibly installed in the toilet main body 2, in a preferred embodiment, the water storage tank is designed into a drawer structure and can be drawn out as required, the water storage tank 1 can be connected with a tap water pipeline for water supplement, for example, a liquid level sensor is arranged in the water storage tank 1 and is in signal connection with a control system, the control system selectively controls the on-off of a valve on the tap water pipeline according to a set liquid level value so as to realize water supplement operation of the water storage tank 1, water can be added manually, and the water can be flexibly selected according to an actual application scene.

Further, the closestool water jet sets up the second grade accepts the first top of accepting board 9 that sealing system has, be provided with first valve, second valve on water tank inhalant canal, the water tank exhalant canal respectively, be provided with control button 12 on the closestool main part 2, control button 12, first valve, second valve, immersible pump, induction system are connected with the control system electricity respectively. In a preferred embodiment, a toilet gasket 22 is further disposed between the toilet body 2 and the toilet cover 19 for comfort.

The control system in the ecological toilet preferably adopts a Mitsubishi PLC system, the toilet in the ecological toilet is a high-pressure toilet, the flushing mode is a high-pressure mode, only 200-250ml of water is needed for single flushing, only 5 seconds are needed for the flushing process, and after the flushing is completed for 10 seconds, the control system automatically switches the liquid flow direction control valve 30 to be communicated with the urine storage barrel 18 according to a preset program.

Specifically, ventilation system includes exhaust fan 4 and first wind channel 5, exhaust fan 4 installs the inside at first wind channel 5, the one end and the first accommodation space of first wind channel 5 are connected, the vertical upwards extension of the other end of first wind channel 5 communicates with each other with outside atmosphere, first rain-proof cap 39 and lightning rod are preferably installed to first wind channel 5, effectively play the effect of rain-proof, lightning protection. Exhaust fan 4 is connected with the control system electricity, be provided with ventilation hole 3 on the wall of sealing ring 11, first wind channel 5 passes through ventilation hole 3 and connects first accommodation space, when exhaust fan 4 rotates, the inside gas of first accommodation space, the inside gas of toilet bowl main part 2 discharges into in the outdoor atmosphere through first wind channel 5, make first accommodation space and 2 inner spaces of toilet bowl main part be little negative pressure, can effectively prevent the foul smell from getting into the indoor space, influence the air quality, adopt natural draft and mechanical draft to combine together, and design air seal ring is applied to the toilet bowl main part, redesign air current tissue, can make the interior negative pressure of cleaners and polishes, the user can not smell smelly even at the in-process like lavatory, it all has obvious sanitary advantage to compare in current flushing toilet and water-free lavatory, structural design is ingenious, the effectual smell that has prevented gives off, greatly improved like the experience of person and felt.

Further, when the toilet lid 19 is opened, the sensing device on the rotating shaft of the toilet lid 19 transmits a cover opening signal to the control system, the control system controls the exhaust fan 4 to open and operate, the ventilation system enables the inside of the toilet main body 2 to form micro negative pressure, the peculiar smell inside the toilet main body 2 is taken away in time, and the practicability of the toilet is enhanced.

Specifically, store up the excrement unit including storing up the excrement jar 17, store up and be provided with on the excrement jar 17 and take out excrement mouth 28, gas vent 29, add acid mouth 34, clear dirty mouthful 35, liquid level radar 36, excrement mouth 37 and reserve mouthful 38, excrement mouth 37 with the bottom of sealing ring 11 is connected, it is used for connecting outside excrement pumping equipment to take out excrement mouth 28, can be connected with outside excrement pumping equipment through installing the excrement pipeline 13 of taking out on excrement pumping mouth 28 according to actual need, and excrement and urine in the excrement jar 17 is stored up in the regular clearance.

Be provided with the exhaust duct who communicates with gas vent 29 in the urn body position of storing up excrement urn 17, gas vent 29 is connected with outside atmosphere through vertical upwards extending second wind channel 33, and rain-proof cap 40 of second and lightning rod are preferably installed to the top in second wind channel 33. The second air duct 33 is arranged under the action of the chimney effect, so that on one hand, the explosion caused by overhigh air pressure due to the accumulation of gas in the container is prevented; on the other hand, a micro negative pressure can be formed in the excrement storage jar 17, and the odor in the excrement storage jar 17 is prevented from being emitted to the environment of the toilet. The cleaning opening 35 is provided with a pump connector, for example, a flange, and is connected to the excrement storage jar 17 through an outdoor pipeline, and when excrement is collected and transported, the pump is used for pumping through the cleaning opening. The acid adding port 34 is provided in the rear half of the toilet main body 2 and communicates with the interior of the excrement storage tank 17 through a flexible hose.

Further, liquid level radar 36 and control system signal connection, liquid level radar 36 can detect the faecal liquid level in the storage manure jar 17, prevent to store up in the manure jar 17 that the excrement and urine is too much and influence like the lavatory. In a preferred embodiment, still be provided with the maintenance manhole on the storage manure vat 17, can open the lid and overhaul when unusual jam appears in the long-time operation of storage manure vat 17.

The collection and utilization of the excrement and urine in the ecological toilet are both based on engineering practice, the excrement can be used as a raw material for biogas engineering to ferment, and biogas residues which are one of products of the engineering can be reused, so that the advantage of maximized utilization of excrement resources is obtained.

The working principle of the ecological toilet is as follows:

when a person goes to toilet, firstly, the toilet lid 19 is opened, the person can sit on the toilet main body 2 conveniently, the excrement falls on the first receiving plate 9, and the urine flows into the urine guide groove 14 arranged at the front end along the inner wall surface of the front half part of the toilet main body 2 and flows to the urine storage barrel 18 through the liquid guide system. When the toilet cover 19 is opened, the axial flow exhaust fan 4 is powered on and started, odor is generated more when people are convenient, and a negative pressure area is quickly formed in the air seal ring 11 under the double effects of the exhaust fan 4 and a chimney effect, so that the odor enters the air seal ring 11 from gaps between the first-stage bearing plate 9 and the feces dropping port and the urine guide grooves on the two sides and is then discharged outdoors. Forced exhaust when like the lavatory makes the foul smell can not lose the lavatory room space completely, very big assurance like the lavatory experience. After like the lavatory, click control button 12 on the ecological lavatory control panel and wash the operation, control button 12 presses the back, and control system receives control signal, and then controls each part and realizes follow-up action:

on the one hand, the control system controls the first motor 6 to drive the first screw rod 7 to rotate forwards, so that the first stage bearing plate 9 moves backwards, in the moving process, the first scraper on the first stage bearing plate 9 scrapes excrement on the first stage bearing plate 9 to the second bearing plate 10, and then the first motor 6 rotates backwards to drive the first screw rod to reset the first stage bearing plate 9.

On the other hand, the control system controls the submersible pump in the water storage tank 1 to start, water stored in the water storage tank 1 flows to the first receiving plate 9 through a water spraying opening of the toilet, so that residual excrement particles on the first receiving plate 9 are washed, the washed waste water flows into the urine guide groove 14 and reaches the liquid flow direction control valve 30 through the liquid guide pipe 15, the liquid flow direction control valve 30 is adjusted to be communicated with the second flow guide pipe 23 under the control of the control system, therefore, the washed washing water flows into the second flow guide pipe 23 through the liquid flow direction control valve 30 and then enters the filter tank 20, the control system controls the submersible pump to stop running according to set time, and then the control system controls the liquid flow direction control valve 30 to be communicated with the first flow guide pipe 16 so that fluid can flow to the urine storage tank 18. Meanwhile, after the first bearing plate 9 returns, the excrement falls on the second bearing plate 10, at this time, the control system controls the second motor 41 to rotate to drive the second screw rod 42 to move and drive the second bearing plate 10 to move towards the second motor 41, the excrement on the second bearing plate 10 is pushed by the second scraper, along with the movement of the second bearing plate 10, the excrement falls into the excrement storage tank 17 due to the action of gravity, and after the second bearing plate 10 moves to a set position, the second motor 41 rotates reversely to drive the second screw rod 42 to move and drive the second bearing plate 10 to return and seal and cover the excrement falling port 37 on the excrement storage tank 17.

Citric acid can be added into the excrement storage jar 17 through the acid adding port 34, and the excrement can be reduced in fermentation under the action of the citric acid in the excrement storage jar 17, so that the activity of the excrement is maintained, and the subsequent utilization is facilitated. After the toilet is used for a period of time, a specially-assigned person collects excrement and urine in a region in a unified way, the recovered excrement depends on engineering projects, namely the high-quality excrement is used as a fermentation raw material of a biogas project, fermented biogas residues can be used as fertilizers for secondary utilization, and excrement and sewage resources are utilized for the secondary utilization. Urine is used for extracting phosphorus, nitrogen, urokinase and other scarce nutrient substances.

The ecological toilet scheme can be applied to various scenes, such as a rural flat-room type, a scenic spot row public toilet and a building type household toilet.

It should be noted that, in the process of urination or defecation, the operation of the ventilation system can ensure that the peculiar smell of the whole device is absorbed away, the ventilation of the whole toilet is ensured, the device is clean and environment-friendly, and meanwhile, under the condition that no person goes to the toilet, the interior of the toilet main body 2 can be always kept at micro negative pressure due to the chimney effect, so that the refreshing of the surrounding environment of the toilet can be always ensured.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (7)

1. An ecological toilet for treating washing water using a plant filter, the plant filter comprising:

comprises a filter (20) and a purified water storage tank (45);

flushing water flows into one end of the filter tank (20) through a second flow guide pipe (23) and flows into the purified water storage tank (45) from the other end of the filter tank (20) through a third flow guide pipe (31);

the filter (20) is sequentially provided with a gravel layer (24), a zeolite layer (25) and a plant layer (26) from bottom to top; the filter tank (20) is sequentially provided with a plurality of layers of partition plates (27) at intervals along the flowing direction of the flushing water so as to divide the filter tank (20) into a plurality of flowing areas and enable the flushing water to flow in a snake-shaped direction;

its characterized in that, the plant filtering pond is applicable to the processing of sparge water in the ecological lavatory, passes through the tube coupling with the bedpan system in the ecological lavatory, and wherein the ecological lavatory still includes: the toilet comprises a bedpan system, a liquid guide switching system, a secondary receiving and sealing system, a ventilation system, a urine storage system and a control system;

the excrement storage system comprises an excrement storage unit and a urine storage unit, the bedpan system is connected with the excrement storage unit, the secondary receiving sealing system is installed on the bedpan system, the ventilation system is connected with the secondary receiving sealing system, the bedpan system is respectively connected with the filter tank (20) and the urine storage unit through the liquid guide switching system, the control system is respectively electrically connected with the bedpan system, the liquid guide switching system, the secondary receiving sealing system and the ventilation system, and the ecological toilet collects excrement, urine, flushing water and toiletry articles from the source;

the two-stage bearing sealing system comprises a first push-pull mechanism, a second push-pull mechanism and a sealing ring (11), the top of the sealing ring (11) is connected with the first push-pull mechanism, the bottom of the sealing ring (11) is connected with the excrement storage unit, the second push-pull mechanism is arranged between the excrement storage unit and the first push-pull mechanism, the second push-pull mechanism and the sealing ring (11) enclose a first accommodating space, the first push-pull mechanism and the second push-pull mechanism can be switched between an open state and a closed state, when the first push-pull mechanism is in the open state, the first accommodating space is communicated with the outside through a toilet bowl main body (2) of the toilet bowl system, when the second push-pull mechanism is in the open state, the first accommodating space is communicated with the excrement storage unit, when the first push-pull mechanism and the second push-pull mechanism are in the closed state, the first accommodating space is a closed space, the ventilation system is connected with the first accommodating space, and a two-stage sealing mode of two-stage bearing plates is adopted;

the liquid guide switching system comprises a urine guide groove (14), a liquid guide tube (15), a first liquid guide tube (16), a second liquid guide tube (23) and a liquid flow direction control valve (30), one end of the liquid guide tube (15) is connected with the urine guide groove (14), the other end of the liquid guide tube (15) is respectively connected with the first liquid guide tube (16) and the second liquid guide tube (23) through the liquid flow direction control valve (30), and the liquid flow direction control valve (30) is electrically connected with the control system;

the first push-pull mechanism comprises a first motor (6), a first screw rod (7), two first guide rails (8), a first bearing plate (9), a first scraper blade and a bearing frame (32), the two first guide rails (8) are arranged on two sides of the bearing frame (32) in parallel, the first motor (6) is connected with the first bearing plate (9) through the first screw rod (7) and can drive the first screw rod (7) to drive the first bearing plate (9) to move, two ends of the first scraper blade respectively span two ends of the first bearing plate (9) and are arranged on the bearing frame (32), the bottom edge of the first scraper blade is in contact with the first bearing plate (9) and can scrape the upper surface of the first bearing plate (9) when the first bearing plate (9) moves, the second push-pull mechanism comprises a second motor (41), a second screw rod (42), two second guide rails (43), a second bearing plate (10) and a second scraper blade (44), the two second guide rails (43) are arranged on the bearing frame (32) in parallel, two ends of the second bearing plate (10) are connected with the second bearing plate (10) through two seal rings (42) and can drive the second bearing plate (10) and the second screw rod (10) and drive the second bearing plate (10) through two seal rings (42), the bottom edge of the second scraper (44) is in contact with the second bearing plate (10) and can scrape the upper surface of the second bearing plate (10) when the second bearing plate (10) moves, the first motor (6) and the second motor (41) are respectively electrically connected with the control system, and the actions of the first motor (6) and the second motor (41) can be controlled according to the set control system;

one end of the first bearing plate (9) facing the urine guide groove (14) is provided with a downward inclined angle, urine can automatically flow into the urine guide groove (14) along the inclined first bearing plate (9) and then flows into the urine storage barrel (18), the urine storage barrel (18) is detachable, when the urine storage barrel (18) is full, the standby urine storage barrel (18) can be replaced after being detached, the full urine storage barrel (18) is conveyed away, the edge of the first bearing plate (9) extends to the upper side of the central position of the urine guide groove (14), the urine naturally flows into the urine guide groove (14) along the inclined flow direction, and a gap between the first bearing plate (9) and the urine guide groove (14) can enable the first containing space with a micro negative pressure environment to suck air in the toilet bowl main body (2);

the bedpan system comprises a water storage tank (1), a pedestal pan main body (2) and a toilet cover (19), wherein the toilet cover (19) is rotatably installed on the pedestal pan main body (2), an induction device is installed on a rotating shaft, when the toilet cover (19) is opened, the induction device is touched so as to control the system to control the exhaust fan (4) to start and operate, when the toilet cover (19) is closed, the induction device is touched so as to control the system to control the exhaust fan (4) to stop operating, a water tank water inlet channel and a water tank water outlet channel are arranged on the water storage tank (1), a submersible pump is installed in the water storage tank (1), an outlet of the submersible pump is connected with a toilet water spraying port in the pedestal pan main body inner wall (21) through the water tank water outlet channel, and the water storage tank (1) is installed in the pedestal pan main body (2);

the toilet bowl water spray opening is arranged above a first bearing plate (9) of the secondary bearing sealing system, a first valve and a second valve are respectively arranged on the water inlet channel of the water tank and the water outlet channel of the water tank, a control button (12) is arranged on the toilet bowl main body (2), and the control button (12), the first valve, the second valve, the submersible pump and the induction device are respectively and electrically connected with the control system;

the ventilation system comprises an exhaust fan (4) and a first air channel (5), the exhaust fan (4) is installed inside the first air channel (5), one end of the first air channel (5) is connected with a first accommodating space, the other end of the first air channel (5) vertically extends upwards and is communicated with the outside atmosphere, and a first rain-proof cap (39) and a lightning rod are installed on the first air channel (5); the exhaust fan (4) is electrically connected with the control system, the wall of the sealing ring (11) is provided with a vent hole (3), the first air channel (5) is connected with the first accommodating space through the vent hole (3), when the exhaust fan (4) rotates, gas in the first accommodating space and gas in the toilet bowl main body (2) are discharged into the outdoor atmosphere through the first air channel (5), so that the first accommodating space and the internal space of the toilet bowl main body (2) are in micro negative pressure, natural ventilation and mechanical ventilation are combined, and the air sealing ring is designed to be applied to the toilet bowl main body;

when the toilet cover (19) is opened, the induction device on the rotating shaft of the toilet cover (19) transmits a cover opening signal to the control system, the control system controls the exhaust fan (4) to be started and operated, micro negative pressure is formed inside the toilet main body (2) through the ventilation system, and peculiar smell inside the toilet main body (2) is taken away in time;

the excrement storage unit comprises an excrement storage vat (17), an excrement pumping port (28), an exhaust port (29), an acid adding port (34), a sewage cleaning port (35), a liquid level radar (36), an excrement dropping port (37) and a standby port (38) are arranged on the excrement storage vat (17), the excrement dropping port (37) is connected with the bottom of the sealing ring (11), the excrement pumping port (28) is used for being connected with external excrement pumping equipment, and is connected with the external excrement pumping equipment through an excrement pumping pipeline (13) arranged on the excrement pumping port (28) according to actual needs to regularly clean excrement in the excrement storage vat (17);

an exhaust pipeline communicated with an exhaust port (29) is arranged at the position of the body of the excrement storage tank (17), the exhaust port (29) is connected with the external atmosphere through a second air duct (33) extending vertically and upwards, a second rain cap (40) and a lightning rod are installed at the top of the second air duct (33), and the second air duct (33) is arranged under the action of a chimney effect, so that on one hand, the phenomenon that the gas in the container is accumulated to cause overhigh air pressure to generate explosion is prevented; on the other hand, micro negative pressure can be formed in the excrement storage jar (17), odor in the excrement storage jar (17) is prevented from being emitted to the environment of a toilet, a pump connector is arranged on the dirt cleaning port (35), the excrement storage jar (17) is connected to an outdoor pipeline, when excrement is collected and transported, the pump is used for pumping through the dirt cleaning port, and the acid adding port (34) is arranged at the rear half part of the toilet main body (2) and is communicated into the excrement storage jar (17) through a flexible hose;

liquid level radar (36) and control system signal connection, faecal liquid level in liquid level radar (36) can detect storage manure jar (17), prevents that excrement and urine is too much and influence like the lavatory in storage manure jar (17), be provided with the maintenance manhole on storage manure jar (17), uncap when unusual jam appears in storage manure jar (17) long-time operation and overhaul.

2. The eco-lavatory for treating washing water using a plant filter according to claim 1, wherein the filter (20) and the purified water storage tank (45) are disposed in a buried manner;

the zeolite layer (25) is filled with a zeolite matrix;

the gravel layer (24) is filled with a gravel matrix.

3. The eco lavatory for a plant filter process washing water according to claim 1, wherein a water falling level of the second guide pipe (23) into the filter (20) is higher than an overflow level of the third guide pipe (31).

4. The eco-lavatory for treating a washing water using a plant filter according to claim 1, wherein the vegetation bed (26) is emergent vegetation which is planted uniformly or non-uniformly in the filter (20).

5. The eco lavatory for a vegetation filter process rinse water according to claim 1, wherein the second draft tube (23) is introduced into the bottom of the filter (20) through a plurality of water inlet lines connected in parallel;

the third guide pipes (31) are multiple and are respectively arranged in parallel at intervals.

6. The eco-lavatory for treating washing water using a plant filter according to claim 1, comprising the steps of:

horizontal purification step: enabling washing water to enter from the bottom of one side of the filter tank (20), enabling the washing water to flow along a curved path in a blocking mode in the horizontal direction and flow out from the top of the other side of the filter tank (20);

a vertical purification step: and (2) enabling washing water to enter from the bottom of one side of the filter tank (20), and enabling the washing water to sequentially pass through a gravel layer (24), a zeolite layer (25) and a plant layer (26) in a layered mode along the vertical direction and flow out from the top of the other side of the filter tank (20).

7. The eco lavatory for a vegetation filter process rinse water according to claim 6, wherein the curved path takes a serpentine path and the barrier takes a plurality of partitions (27) arranged at intervals.

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