CN112617648A - Flushing-free pad packaging type closestool - Google Patents

Flushing-free pad packaging type closestool Download PDF

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Publication number
CN112617648A
CN112617648A CN202011528969.8A CN202011528969A CN112617648A CN 112617648 A CN112617648 A CN 112617648A CN 202011528969 A CN202011528969 A CN 202011528969A CN 112617648 A CN112617648 A CN 112617648A
Authority
CN
China
Prior art keywords
baffle
barrel body
closestool
toilet
rotating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011528969.8A
Other languages
Chinese (zh)
Inventor
唐婷
张强
黄开成
王柳骄
吴桐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Aerospace University
Original Assignee
Shenyang Aerospace University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang Aerospace University filed Critical Shenyang Aerospace University
Priority to CN202011528969.8A priority Critical patent/CN112617648A/en
Publication of CN112617648A publication Critical patent/CN112617648A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K11/00Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
    • A47K11/02Dry closets, e.g. incinerator closets
    • A47K11/03Dry closets, e.g. incinerator closets having means for adding powder, e.g. earth
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K13/00Seats or covers for all kinds of closets
    • A47K13/14Protecting covers for closet seats
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K17/00Other equipment, e.g. separate apparatus for deodorising, disinfecting or cleaning devices without flushing for toilet bowls, seats or covers; Holders for toilet brushes
    • A47K17/02Body supports, other than seats, for closets, e.g. handles, back-rests, foot-rests; Accessories for closets, e.g. reading tables
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Abstract

The invention discloses a water flushing-free pad wrapping type closestool, wherein a water tank in a traditional closestool is replaced by a pad box, straw particles are contained, an electric baffle is arranged in a closestool body, the straw particles in the pad box flow into the electric baffle through a feeding pipe, so that a layer of straw particles is laid on the electric baffle, when the closestool is used, excrement discharged by people directly falls on the straw particles to wrap the excrement, the pollution to the electric baffle is prevented, after the closestool is used, the electric baffle is opened, the excrement can slide into a sewage discharge groove along with the straw particles and is discharged through a sewage discharge outlet, the closestool does not need to be flushed by water in the whole process, and the closestool is suitable for rural areas and areas with incomplete sewer systems. In addition, the excrement discharged by the closestool is mixed with the straws, and can be directly fermented for producing biogas; the closestool has the advantages of simple structure, reasonable design, convenient use and the like.

Description

Flushing-free pad packaging type closestool
Technical Field
The invention relates to the technical field of toilets, in particular to a water-free pad wrapping type toilet.
Background
The closestool is a necessary sanitary facility for families, not only determines the life quality of the majority of residents, but also influences the improvement of ecological and sanitary environment.
Although the flush toilet has been popular in China for many years, dry toilets with smelly weather are still used in many rural areas at present due to the fact that a complete sewer system is not available. In recent years, the nation has also vigorously pursued toilet reform in various regions, but due to the restriction of a sewer system, the countryside always gives priority to dry toilets, and the problems of dirty, messy and smelly toilets in the countryside cannot be well solved.
Therefore, how to develop a new toilet structure suitable for rural areas and areas with an incomplete sewer system becomes a problem to be solved urgently.
Disclosure of Invention
In view of the above, the present invention provides a toilet without packing and water flushing, which is suitable for rural areas and areas with an incomplete sewage system.
The invention provides a technical scheme, in particular to a water-free pad wrapping type closestool, which comprises: the toilet bowl comprises a barrel body, a material filling box, an electric baffle, a feeding pipe, a sewage discharge groove, a toilet seat and a controller;
the upper end of the barrel body is open, and a cavity is arranged inside the barrel body;
the material filling box is arranged above the barrel body, a discharge hole is formed in the bottom surface of the material filling box, and an electric turntable capable of controlling the opening/closing of the discharge hole is arranged above the discharge hole;
electronic baffle setting is in the cavity of ladle body, electronic baffle includes: a driving motor and a rotating baffle;
the driving motor is fixedly connected with the side wall of the cavity in the barrel body;
the rotating baffle is arranged in the middle of the cavity of the barrel body in a blocking manner, is opposite to an upper end opening of the barrel body, and is in driving connection with an output shaft of the driving motor;
the feeding pipe is obliquely arranged in the barrel body, a feeding hole of the feeding pipe is connected and communicated with a discharging hole of the material filling box, the discharging hole of the feeding pipe is positioned above the rotating baffle, and the height of the feeding hole in the feeding pipe is higher than that of the discharging hole;
the blow-down groove is positioned below the barrel body and fixedly connected with the barrel body, the blow-down groove is communicated with the cavity inside the barrel body and is opposite to the rotating baffle, and a blow-down port is arranged on the bottom surface of the blow-down groove;
the toilet seat is arranged at an opening at the upper end of the toilet body, and a pressure sensor is arranged in the toilet seat;
the input end of the controller is connected with the output end of the pressure sensor, and the output end of the controller is respectively connected with the control end of the electric turntable and the control end of the driving motor in the electric baffle.
Preferably, the water-free pad-packed toilet further includes: a blowdown button and a discharge button;
the blowdown button with arrange the material button and set up respectively the ladle body or on the pad workbin, just the output of blowdown button with arrange the output of material button all with the input of controller is connected.
Further preferably, the water-free pad-packed toilet further includes: two armrests;
the two handrails are respectively positioned on two sides of the barrel body, and each handrail is fixedly connected with the barrel body.
Further preferably, the rotating barrier is a split rotating barrier including: a first baffle and a second baffle;
the first baffle and the second baffle are connected, and the outer side edges of the first baffle and the second baffle are rotatably connected with the side wall of the cavity in the barrel body.
Further preferably, sealing strips are arranged on the abutting side walls of the first baffle and the second baffle.
Further preferably, the rotating baffle is obliquely arranged, and the height of the rear end of the rotating baffle is higher than that of the front end of the rotating baffle.
Further preferably, the cross-sectional view of the side surface of the sewage draining groove is in an inverted trapezoid shape.
Further preferably, the length of the front oblique side in a side sectional view of the sewage draining groove is greater than that of the rear oblique side.
The invention provides a water-flushing-free pad-wrapped closestool, wherein a water tank in a traditional closestool is replaced by a pad box to contain straw particles, an electric baffle is arranged in a closestool body, the straw particles in the pad box flow into the electric baffle through a feeding pipe, so that a layer of straw particles is laid on the electric baffle, when the closestool is used, excrement discharged by people directly falls on the straw particles to wrap the excrement, and the pollution to the electric baffle is prevented. In addition, the excrement discharged by the closestool is mixed with the straws, and can be directly fermented for producing the methane.
The water-free pad-wrapped closestool has the advantages of simple structure, reasonable design, convenience in use and the like, and can be widely applied to rural areas and areas with incomplete sewer systems.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a water-free pad-packed toilet according to an embodiment of the disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
In order to develop a closestool suitable for rural areas and areas with incomplete sewer systems, the embodiment provides a water-free packing wrapping type closestool, see fig. 1, the closestool mainly comprises a barrel body 1, a packing box 2, an electric baffle plate 3, a feeding pipe 4, a sewage discharge groove 5, a closestool ring 6 and a controller, wherein the upper end of the barrel body 1 is open, a cavity is arranged inside the barrel body 1, the packing box 2 is arranged above the barrel body 1, a discharge hole is arranged on the bottom surface of the packing box 2, an electric rotary disc 21 capable of controlling the discharge hole to be opened/closed is arranged above the discharge hole, the electric baffle plate 3 is arranged in the cavity of the barrel body 1, and the electric baffle plate 3 comprises: a driving motor and a rotating baffle 31, wherein the driving motor is fixedly connected with the cavity side wall inside the barrel body 1, the rotating baffle 31 is arranged in the middle of the cavity of the barrel body 1 in a sealing way and is opposite to the upper end opening of the barrel body 1, the rotating baffle 31 is connected with the output shaft of the driving motor in a driving way, the feeding pipe 4 is obliquely arranged in the barrel body 1, the feeding port of the feeding pipe 4 is connected and communicated with the discharging port of the packing box 2, the discharging port of the feeding pipe 4 is arranged above the rotating baffle 31, the feeding port in the feeding pipe 4 is higher than the discharging port, the sewage discharging groove 5 is arranged below the barrel body 1 and is fixedly connected with the barrel body 1, the sewage discharging groove 5 is communicated with the cavity inside the barrel body 1 and is opposite to the rotating baffle 31, the bottom surface of the sewage discharging port 51 is arranged on the sewage discharging groove 5, the toilet seat 6 is arranged at the upper end opening of the barrel body 1, the input end of the controller is connected with the output end of the pressure sensor, and the output end of the controller is respectively connected with the control end of the electric turntable 21 and the control end of the driving motor in the electric baffle 3.
Above-mentioned electric turntable 21 mainly used fills up shutoff and the opening of 2 bottom surfaces discharge gates of workbin, its structural style can be selected according to actual need, for example, this electric turntable 21 includes carousel and motor, wherein, the size and the discharge gate adaptation of carousel, be provided with the fixed axle in the both sides of carousel, the both ends of this fixed axle rotate with the lateral wall of discharge gate respectively and are connected, and the output shaft of motor is connected with the fixed axle drive of carousel, when the motor rotates, can drive the carousel upset, when 90 when the relative discharge gate of carousel, this discharge gate is in the complete open mode, after the ejection of compact, steerable motor reversal, until the carousel level with the discharge gate shutoff.
The water-free pad wrapped closestool provided by the embodiment has the following specific using process: when people use the closestool and sit on the closestool ring, the pressure sensor in the closestool ring can detect the pressure and send a signal to the controller, the controller receives the pressure signal sent by the pressure sensor and can control the electric turntable to rotate, the discharge hole is opened, at the moment, the straw particles contained in the padding box can flow onto the rotating baffle plate of the electric baffle plate along the feed pipe under the action of gravity, so that a layer of straw particles is laid on the upper surface of the rotating baffle plate, at the moment, excrement discharged by people can directly fall onto the rotating baffle plate on which the straw particles are laid, after people use the closestool, the pressure sensor of the closestool ring can detect that the pressure value is instantly reduced after the closestool leaves, and send a signal to the controller, and after the controller receives the signal, the controller can control the driving motor in the electric baffle plate to rotate to drive the rotating baffle plate to rotate, in the rotating process of the rotating baffle, excrement can slide down to the sewage draining groove along the rotating baffle along with straw particles and is finally discharged from the sewage draining port. According to the water-free padding material wrapping type closestool, the discharged excrement is wrapped by the straw particles, so that the pollution to the rotating baffle can be avoided, the closestool does not need to be replaced, and the closestool is further suitable for regions with incomplete sewer systems.
In addition, when the water-free padding material wrapping type closestool is used, the sewage discharge groove is usually buried underground and is connected with the biogas fermentation tank through the sewage discharge port, at the moment, excrement discharged through the closestool directly falls into the biogas fermentation tank and is a mixture of the excrement and straw particles, the excrement and the straw particles can serve as fermentation raw materials to be fermented, and the biogas fermentation tank is in a form of one layer of excrement and one layer of straw particles, so that the fermentation is facilitated.
In order to reduce the fault rate of above-mentioned closestool, prevent that the pressure sensor in the toilet seat from breaking down, lead to the unable normal use of closestool, as technical scheme's improvement, this exempt from water-washed bedding and padding parcel formula closestool still is provided with blowdown button and arranges the material button, and wherein, blowdown button and row material button set up respectively on ladle body or bedding and padding case, and the output of blowdown button and the output of arranging the material button all are connected with the input of controller.
At the moment, when the blowdown button is pressed, the blowdown button sends a signal to the controller, and the controller controls the driving motor in the electric baffle to rotate so as to carry out blowdown; when the material discharging button is pressed, the material discharging button sends a signal to the controller, and the controller controls the electric turntable to rotate so as to open the material outlet on the bottom surface of the material filling box.
In order to facilitate the use of the toilet, as an improvement of the technical solution, referring to fig. 1, two handrails 7 are further provided in the water-free pad-packed toilet, wherein the two handrails 7 are respectively located at two sides of the toilet body 1, and each handrail 7 is fixedly connected with the toilet body 1.
The above-mentioned rotating shutter 31 may take various configurations, preferably a split configuration, i.e., referring to fig. 1, the rotating shutter 31 includes: first baffle 31 and second baffle 32, wherein, first baffle 31 and second baffle 32 meet the setting mutually, and the outside side of first baffle 31 and second baffle 32 all rotates with the inside cavity lateral wall of ladle body 1 and is connected, at this moment, when carrying out the excrement blowdown at every turn, the excrement is direct from the butt joint landing between first baffle and the second baffle, and then reduces the sliding distance of excrement on rotating the baffle, reduces and rotates the contaminated probability of baffle.
Although the odor in the toilet can be improved by blocking part of the odor from being emitted to the outside through the arrangement of the electric baffle, sealing strips are preferably arranged on the abutting side walls of the first baffle 31 and the second baffle 32 to improve the sealing performance of the rotating baffles and further prevent the odor from being emitted.
In order to improve the laying effect of the straw particles sliding on the rotating baffle plate, as the improvement of the technical scheme, the rotating baffle plate 31 is designed to be inclined, the rear end of the rotating baffle plate 31 is higher than the front end of the rotating baffle plate, at the moment, the straw particles sliding from the discharging pipe directly slide on the front end of the rotating baffle plate under the action of gravity after arriving at the rotating baffle plate, and the straw particles sequentially extend backwards until the complete laying of the rotating baffle plate 31 is completed.
In order to facilitate the sewage draining of the sewage draining tank, as a modification of the technical solution, referring to fig. 1, the sewage draining tank 5 is designed to have an inverted trapezoidal side sectional view, and preferably, the length of the front oblique side is greater than that of the rear oblique side in the side sectional view of the sewage draining tank 5.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (8)

1. A water-free pad-wrapped toilet bowl, comprising: the toilet bowl comprises a barrel body (1), a padding box (2), an electric baffle (3), a feeding pipe (4), a sewage discharge groove (5), a toilet seat (6) and a controller;
the upper end of the barrel body (1) is open, and a cavity is arranged inside the barrel body (1);
the material filling box (2) is arranged above the barrel body (1), a material outlet is arranged on the bottom surface of the material filling box (2), and an electric turntable (21) capable of controlling the material outlet to be opened/closed is arranged above the material outlet;
electronic baffle (3) set up in the cavity of ladle body (1), electronic baffle (3) include: a driving motor and a rotating baffle;
the driving motor is fixedly connected with the side wall of the cavity in the barrel body (1);
the rotating baffle is arranged in the middle of the cavity of the barrel body (1) in a plugging manner, is opposite to the upper end opening of the barrel body (1), and is in driving connection with the output shaft of the driving motor;
the feeding pipe (4) is obliquely arranged in the barrel body (1), a feeding hole of the feeding pipe (4) is connected and communicated with a discharging hole of the material filling box (2), the discharging hole of the feeding pipe (4) is positioned above the rotating baffle, and the height of the feeding hole in the feeding pipe (4) is higher than that of the discharging hole;
the sewage discharge groove (5) is positioned below the barrel body (1) and fixedly connected with the barrel body (1), the sewage discharge groove (5) is communicated with a cavity inside the barrel body (1) and is opposite to the rotating baffle, and a sewage discharge port (51) is formed in the bottom surface of the sewage discharge groove (5);
the toilet seat (6) is arranged at an opening at the upper end of the toilet body (1), and a pressure sensor is arranged in the toilet seat (6);
the input end of the controller is connected with the output end of the pressure sensor, and the output end of the controller is respectively connected with the control end of the electric turntable (21) and the control end of the driving motor in the electric baffle (3).
2. The waterless, dunnage-wrapped toilet of claim 1, further comprising: a blowdown button and a discharge button;
the blowdown button with arrange the material button and set up respectively the ladle body or on the pad workbin, just the output of blowdown button with arrange the output of material button all with the input of controller is connected.
3. The waterless, dunnage-wrapped toilet of claim 1, further comprising: two armrests (7);
the two handrails (7) are respectively positioned on two sides of the barrel body (1), and each handrail (7) is fixedly connected with the barrel body (1).
4. The water-free dunnage-encased toilet of claim 1, wherein the rotating baffle is a split rotating baffle comprising: a first baffle plate (31) and a second baffle plate (32);
the first baffle (31) and the second baffle (32) are connected, and the outer side edges of the first baffle (31) and the second baffle (32) are rotatably connected with the side wall of the cavity in the barrel body (1).
5. The water-free dunnage-wrapped toilet according to claim 1, wherein the abutting side walls of the first baffle (31) and the second baffle (32) are each provided with a sealing strip.
6. The water-free dunnage-packed toilet bowl of claim 1, wherein the rotating baffle is disposed at an incline, and a height of a rear end of the rotating baffle is greater than a height of a front end of the rotating baffle.
7. The water-free mat wrapped toilet according to claim 1, wherein the blowdown tank (5) has an inverted trapezoidal side sectional view.
8. The waterfree mat wraparound toilet according to claim 7, wherein the length of the front oblique side in a side sectional view of the waste chute (5) is greater than the length of the rear oblique side.
CN202011528969.8A 2020-12-22 2020-12-22 Flushing-free pad packaging type closestool Pending CN112617648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011528969.8A CN112617648A (en) 2020-12-22 2020-12-22 Flushing-free pad packaging type closestool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011528969.8A CN112617648A (en) 2020-12-22 2020-12-22 Flushing-free pad packaging type closestool

Publications (1)

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CN112617648A true CN112617648A (en) 2021-04-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113440039A (en) * 2021-07-02 2021-09-28 中国水利水电科学研究院 Toilet for recycling resources
CN113940578A (en) * 2021-10-28 2022-01-18 南京沿江资源生态科学研究院有限公司 Portable burning squatting pan

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CN208910010U (en) * 2018-05-14 2019-05-31 刘影 A kind of compost dry pail latrine that solid-liquid is collected respectively
CN110037600A (en) * 2019-05-28 2019-07-23 东北农业大学 Waterless compost rural pit toilet crushing straw laminar padding laying device
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CN210871269U (en) * 2019-07-05 2020-06-30 中铁雄安建设有限公司 Water-free biodegradable closestool
CN211381055U (en) * 2019-09-17 2020-09-01 湖北鼎誉环保科技有限公司 Squatting pan that dry latrine and compost lavatory used
CN211408837U (en) * 2019-11-27 2020-09-04 农业农村部环境保护科研监测所 Integrated biological compost dry toilet
CN211582882U (en) * 2020-01-09 2020-09-29 郑息息 Flushing-free ecological toilet
CN112049210A (en) * 2020-06-29 2020-12-08 中国科学院生态环境研究中心 Intelligent packaging type straw ecological toilet and excrement synchronous fermentation system

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Publication number Priority date Publication date Assignee Title
JP2000107727A (en) * 1998-10-02 2000-04-18 Hiroshi Shimizu Treating device of high moisture organic waste with deodorizing function
KR20100071633A (en) * 2008-12-19 2010-06-29 김원길 Toilet bowel with small exhaust equipment
CN204728430U (en) * 2015-06-12 2015-10-28 夏元晨 Toilet external member
CN206026203U (en) * 2016-06-15 2017-03-22 李二龙 Dry toilet automatic sealing squatting closet
CN107761893A (en) * 2017-10-13 2018-03-06 孙炳杰 A kind of compost type closestool
CN208640576U (en) * 2018-02-11 2019-03-26 北京吉姆生态建筑科技有限公司 A kind of Environmental protection dry toilet closestool
CN208910010U (en) * 2018-05-14 2019-05-31 刘影 A kind of compost dry pail latrine that solid-liquid is collected respectively
CN110037600A (en) * 2019-05-28 2019-07-23 东北农业大学 Waterless compost rural pit toilet crushing straw laminar padding laying device
CN210871269U (en) * 2019-07-05 2020-06-30 中铁雄安建设有限公司 Water-free biodegradable closestool
CN211381055U (en) * 2019-09-17 2020-09-01 湖北鼎誉环保科技有限公司 Squatting pan that dry latrine and compost lavatory used
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CN211408837U (en) * 2019-11-27 2020-09-04 农业农村部环境保护科研监测所 Integrated biological compost dry toilet
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CN112049210A (en) * 2020-06-29 2020-12-08 中国科学院生态环境研究中心 Intelligent packaging type straw ecological toilet and excrement synchronous fermentation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113440039A (en) * 2021-07-02 2021-09-28 中国水利水电科学研究院 Toilet for recycling resources
CN113940578A (en) * 2021-10-28 2022-01-18 南京沿江资源生态科学研究院有限公司 Portable burning squatting pan

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