CN110629840B

CN110629840B - Water-saving closestool and water-saving method thereof

Info

Publication number: CN110629840B
Application number: CN201910776533.1A
Authority: CN
Inventors: 宋立天; 苏君康; 朱金田; 蔡晓坚; 桑书路; 戴东琼; 李雪雁; 张珉; 苏振和; 明庭坚; 张锐; 朱文倩; 刘小宁; 汪国灿
Original assignee: Shenzhen Municipal Design and Research Institute Co Ltd
Current assignee: Shenzhen Municipal Design and Research Institute Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-12-08
Anticipated expiration: 2039-08-21
Also published as: CN110629840A

Abstract

The invention discloses a water-saving closestool and a water-saving method thereof, wherein the water-saving closestool comprises a closestool body, a first flushing port and a second flushing port which are arranged in a flushing cavity of the closestool body, a sensor which is fixedly arranged on the closestool body and is used for sensing and judging excrement, a controller which is arranged at the rear part of the closestool body and is electrically connected with the sensor, a first electromagnetic valve which is arranged on a flushing pipeline of the first flushing port, is electrically connected with the controller and is used for controlling the opening and closing of the first flushing port, and a second electromagnetic valve which is arranged on a flushing pipeline of the second flushing port, is electrically connected with the controller and is used for controlling the opening and closing of the second flushing port. After the sensor judges the urine and stool, the corresponding flushing port executes the corresponding program to flush water, so that the water saving of flushing water is realized.

Description

Water-saving closestool and water-saving method thereof

Technical Field

The invention relates to the field of toilet equipment, in particular to a water-saving toilet and a water-saving method thereof.

Background

At present, water resources are increasingly scarce, and water conservation becomes necessary. Water can be saved in many places in daily life, and a water closet is one aspect of the water saving.

At present, the vast majority of toilets are flushed by water manually, and the volume of flushing by urine and excrement is the same, so that corresponding flushing can not be carried out according to actual conditions, and great waste is caused to water resources.

Therefore, the prior art has yet to be improved and developed.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a water saving toilet and a water saving method thereof, which are intended to solve the problem that the amount of water used for flushing and when to stop flushing cannot be determined in the conventional toilet, resulting in waste of water resources.

The technical scheme of the invention is as follows:

the utility model provides a water-saving closestool, including the closestool body, still including setting up the first flushing port in the flushing chamber of closestool body, set up the second flushing port in the flushing chamber, fixed setting is used for the response and judges the inductor of stool and urine on the closestool body, set up at the rear portion of closestool body and with inductor electric connection's controller, set up on the flushing pipe of first flushing port and with controller electric connection and be used for controlling the first solenoid valve that the first flushing port opened and close, set up on the flushing pipe of second flushing port and with controller electric connection and be used for controlling the second flushing port second solenoid valve that opens and close.

In a further preferred scheme, a stool sewage hole and a urine sewage hole are arranged in the flushing cavity, the stool sewage hole and the urine sewage hole are arranged side by side in the front-back direction, the first flushing port is located behind the stool sewage hole, and the second flushing port is located in front of the urine sewage hole.

In a further preferred scheme, an auxiliary flushing port is further arranged in the flushing cavity and located between the excrement sewage draining hole and the urine sewage draining hole, and a third electromagnetic valve is arranged on a connecting pipeline of the auxiliary flushing port and electrically connected with the controller and used for controlling the auxiliary flushing port to open and close.

In a further preferred scheme, two auxiliary flushing ports are arranged, and the two auxiliary flushing ports are respectively positioned on the inner wall of the flushing cavity in the left-right direction.

In a further preferred scheme, the flushing device further comprises a gravity sensor, and the gravity sensor is electrically connected with the controller and used for sensing whether excrement in the flushing cavity is flushed clean or not.

In further preferred scheme, the bottom of closestool body can be dismantled and be connected with pipeline coupling assembling, pipeline coupling assembling is including the shell, sets up the first connecting tube in the shell, sets up the second connecting tube in the shell, excrement blowhole is connected to the one end of first connecting tube, urine blowhole is connected to the one end of second connecting tube.

In a further preferred scheme, a water seal layer is arranged on the first connecting pipeline, and a water seal layer is arranged on the second connecting pipeline.

In a further preferred scheme, the pipeline connecting assembly is provided with a filtering layer for filtering wastewater discharged after urination in a second connecting pipeline, and the tail end of the second connecting pipeline is used for connecting a pipeline for utilizing circulating water.

In a further preferable scheme, foot positions are arranged on the left side and the right side of the closestool body.

A water saving method of a water saving toilet bowl comprises the following steps:

judging the excrement and urine of the human body entering the induction area;

opening a corresponding flushing port according to the judgment result of the excrement;

sensing that the flushing cavity of the closestool is not flushed;

and opening the auxiliary flushing port to flush the flushing cavity.

Compared with the prior art, the invention judges the excrement and urine by infrared detection time, controls the electromagnetic valve to open the flushing system at different positions, grades and time by the controller to flush, judges whether flushing is finished by the gravity sensing device, and can manually control the starting of pressurized flushing to solve the problem that the prior closestool cannot adjust the flushing water quantity to cause waste of traditional water resources or reclaimed water, recycled rainwater and the like.

Drawings

FIG. 1 is a top view of a water saver toilet according to an embodiment of the present invention.

FIG. 2 is a sectional view of an embodiment of a water saver toilet of the invention.

FIG. 3 is an internal structural view of an embodiment of a water savable toilet of the present invention.

FIG. 4 is a view showing a structure of a fish-mouth type launching biomimetic connector in an embodiment of a water-saving toilet of the present invention.

FIG. 5 is a view showing a structure of a waste water purifying connection member according to an embodiment of the water saving type toilet bowl of the present invention.

FIG. 6 is a block diagram of the electrical connections for a water saver toilet according to an embodiment of the present invention.

FIG. 7 is a flow chart of a control method for a water saving toilet according to an embodiment of the present invention.

FIG. 8 is a flowchart illustrating an embodiment of a water saving method of a water saving type toilet according to the present invention.

FIG. 9 is a sectional view of a tank of a water saver toilet according to an embodiment of the present invention.

Fig. 10 is a graph of waste versus flush volume for a prior art single-file toilet.

Fig. 11 is a graph of waste versus flush volume for a prior art dual-flush toilet.

FIG. 12 is a graph showing the relationship between the volume of flush water and the volume of excrement in the water saving toilet of the present invention.

In the figure: 100. a toilet body; 110. a toilet lid; 120. a toilet seat; 130. stepping on the foot position; 140. a fish tank; 150. an activated carbon layer; 160. a water flushing cavity; 170. a water tank; 171. a detection channel; 172. detecting the floating ball by the positioning terminal; 173. a Beidou positioning terminal; 200. a first flushing port; 210. a second flushing port; 220. an auxiliary flushing port; 300. an equipment area; 400. a controller; 410. a first solenoid valve; 420. a second solenoid valve; 430. a third electromagnetic valve; 440. an inductor; 500. a stool sewage hole; 510. a urine drain hole; 600. a booster water pump; 610. function keys; 800. a gravity sensor; 900. a housing; 910. a first connecting pipe; 920. a second connecting pipe; 930. an access hole; 940. water sealing layer; 950. a filter layer.

Detailed Description

The invention provides a water-saving toilet bowl and a water-saving method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, 2 and 3, the present invention provides a water saving toilet, which includes a toilet body 100, wherein the toilet body 100 is designed in an elliptical structure, and for convenience of description, a major axis and a minor axis of the ellipse are used as reference lines for description, the major axis is in a front-back direction, and the minor axis is in a left-right direction. The toilet body 100 includes a toilet lid 110, a toilet seat 120, a flush chamber 160 in the toilet seat 120, and other necessary components. A first flushing port 200 is provided at an inner side of a rim of the toilet flushing chamber 160, the first flushing port 200 is located at a rear end in a long axis direction (i.e., a rear end in a front-rear direction), a second flushing port 210 is provided at an inner side of a rim of the flushing chamber 160, and the second flushing port 210 is located at a front end in a long axis direction (i.e., a front end in a front-rear direction). The sensor 440 is fixedly arranged on the wall body at the rear part of the closestool body 100, the sensor 440 is an infrared detector, the infrared detector can sense the action time of a person who defecates and urinates, the person is judged to be defecating or urinating according to the action time, the sensor 440 is arranged at a certain height to detect a user, and the closestool body 100 is usually provided with a water tank, the sensor 440 can be directly arranged on the surface of the water tank, and the effect of detecting the user can be achieved. The area between the rear portions of the toilet body 100 is an equipment area 300, a controller 400 is further fixedly arranged in the equipment area 300, as shown in fig. 2 and 6, the controller 400 is an MCU controller, the controller 400 is in communication connection with an inductor 440 (infrared detector) through a wire or wireless mode, a first electromagnetic valve 410 connected with the controller 400 through a wire is further arranged in the equipment area 300, the first electromagnetic valve 410 is arranged on a pipeline of the first flushing port 200, and the first electromagnetic valve 410 controls the opening and closing of the first flushing port 200. A second solenoid valve 420 is connected to a pipe of the second flush port 210, the second solenoid valve 420 is connected to the controller 400 through an electric wire and receives a control signal from the controller 400, and the second solenoid valve 420 controls the opening and closing of the second flush port 210. When the closestool works, the sensor 440 detects the time when a user uses the closestool or stands before the closestool, if the use time is longer than 100s, the controller 400 judges that the closestool is in a defecation behavior, the controller 400 sends a control signal to the first electromagnetic valve 410 and controls the first electromagnetic valve 410 to be started, the first electromagnetic valve 410 opens a pipeline of the first flushing port 200, the first flushing port 200 opens flushing water, and the flushing water volume is excrement flushing water volume; if the using time is less than 100s, the controller 400 determines that the urine is a behavior, the controller 400 sends a control signal to the second solenoid valve 420 and controls the second solenoid valve 420 to start, the second solenoid valve 420 opens the pipeline of the second flushing port 210, the second flushing port 210 opens the flushing water, and the flushing water amount is the urine flushing water amount. Because the shit is difficult to wash, and the urine is easy to wash, therefore, the shit washing water quantity is more than the urine washing water quantity, and the sizes of the washing pipelines are correspondingly set to be different, the washing pipelines are respectively arranged for the shit behavior and the urine behavior to respectively flush the shit behavior and the urine behavior, so that the shit water and the urine water are separated, and the purpose of saving water is achieved.

As shown in fig. 2 and 3, a stool dirt discharge hole 500 and a urine dirt discharge hole 510 are provided in the flushing chamber 160 in the front-rear direction, the stool dirt discharge hole 500 being provided at an end adjacent to the first flushing port 200, and the urine dirt discharge hole 510 being provided at an end adjacent to the second flushing port 210. The excrement blowoff hole 500 is circular, and the diameter is 65mm, and urine blowoff hole 510 diameter is 45mm, is apart from 115mm between two outlet, and this distance and size accord with ergonomic design, and when the human body defecates and urinates, its excrement blowoff hole 500 corresponds with the human physiology structure in urine blowoff hole 510's position: the excrement blowoff hole 500 is flushed after human defecation, the urine blowoff hole 510 is flushed after human urination, thus when the human body only urinates, the human body directly discharges into the urine blowoff hole 510, the area of the urine blowoff hole 510 is washed after the second flushing port 210 is opened, and the second flushing port 210 is close to the urine blowoff hole 510, so that the second flushing port 210 has large flushing force on stains near the urine blowoff hole 510, the urine blowoff hole 510 is flushed completely by using less water energy, thereby improving flushing efficiency, saving water is achieved, in the conventional toilet structure, the blowdown is realized through one blowoff hole, the stains remained in the flushing cavity 160 after the urine are long, the conventional manual control water tank is coarsely arranged in a grading manner, the water displacement is fixed once, therefore, more water is used when the urine is flushed completely, and the flushing efficiency without the urine blowoff hole 510 provided by the scheme is high. And during operation, the water and excrement flushed from the first flushing port 200 and the second flushing port 210 are discharged through the excrement drain hole 500 and the urine drain hole 510 respectively, so that the excrement drain hole 500 discharges sewage, and the urine drain hole 510 discharges waste water, thereby separating sewage from waste water, respectively treating the water in the two parts, improving the sewage treatment efficiency, and the water in the urine drain hole 510 is relatively simple, can be recycled after treatment (such as reclaimed water reuse, rainwater collection and reuse, and the like), and can play a role in saving traditional water resources or municipal water resources.

The surface of the flushing cavity in the embodiment is coated with a nano coating layer (not shown in the figure), so that the surface of the flushing cavity is not easy to generate stain residues, and the functions of self-cleaning and dirt cleaning are realized.

As shown in fig. 2 and 3, in this embodiment, two auxiliary flushing ports 220 are further provided, the auxiliary flushing ports 220 are provided on the inner wall of the edge of the flushing cavity 160 and located at two ends in the left-right direction, and preferably, the two auxiliary flushing ports 220 are located between the stool sewage hole 500 and the urine sewage hole 510. A water pipe connected with the auxiliary flushing port 220 is provided with a booster water pump 600, as shown in fig. 2 and 6, the booster water pump 600 can be opened by the controller 400, the third electromagnetic valve 430 is electrically connected with the controller 400, and the controller 400 sends a control instruction to control the opening and closing of the third electromagnetic valve 430, so as to control the opening and closing of the auxiliary flushing port 220. A function button 610 is further provided on the toilet body 100 for manually controlling the auxiliary flushing port 220. When stains remain in the flushing chamber 160 of the toilet, as shown in fig. 3, the function button 610 is manually pressed, the third solenoid valve 430 is activated, the booster water pump 600 is activated, and water flows out from the auxiliary flushing port 220 through the booster water pump 600 to flush the flushing chamber 160. When the auxiliary flushing port 220 is manually controlled, the first solenoid valve 410, the second solenoid valve 420 and the third solenoid valve 430 are all started for 3 s. Thus, the booster water pump 600 increases the water pressure, so that the high pressure water flows hit from the auxiliary flushing port 220 to flush the residual stains in the left and right directions, thereby directly flushing the flushing chamber 160 of the toilet bowl. Thus, the traditional closestool is prevented from being flushed for many times by common water pressure through high water pressure flushing; compared with the traditional flushing mode, the mode finishes flushing at one time, improves flushing efficiency and saves water.

As shown in fig. 2 and 7, not only the first flushing port 200, the second flushing port 210 and the auxiliary flushing port 220 can be separately flushed, but also flushing can be simultaneously performed, when the controller 400 senses that the human body discharge is relatively large after the human convenience time is long, the stool in the flushing cavity 160 is relatively large, the general water quantity is relatively difficult to flush at one time, therefore, the traditional toilet flushing process is manually controlled to flush for multiple times, water is also flushed from one direction, the flushing efficiency is low, and the water resource waste is serious due to multiple flushing. Therefore, the first solenoid valve 410, the second solenoid valve 420, and the third solenoid valve 430 can be opened simultaneously, so that the first flushing port 200, the second flushing port 210, and the auxiliary flushing port 220 flush water simultaneously, and the controller 400 can preset the opening level and time of the solenoid valves, specifically, the level is L, M, H, and the flushing time and the flushing amount are sequentially increased. The L gear is the working time 2s of the first electromagnetic valve 410 and the working time 1s of the second electromagnetic valve 420; the working time of the M-gear first electromagnetic valve 410 is 3s, and the working time of the second electromagnetic valve 420 is 1.5 s; the working time of the H-gear first electromagnetic valve 410 is 4s, and the working time of the second electromagnetic valve 420 is 2 s; l, M, H the third gear can be set according to the time when the human body action is sensed. Like this, human defecating time is longer more, and practical gear is higher more, and first flushing port 200 and second flushing port 210 are washed by water simultaneously, realize washing by water to the equidirectional bath of excrement to can once only wash cleanly, avoid washing by water repeatedly and cause the waste.

As shown in fig. 2 and 7, in order to implement automatic flushing, a gravity sensor 800 is disposed below the flushing chamber 160 of the toilet, the gravity sensor 800 is connected to the controller 400 through a wire, and the gravity sensor 800 transmits a sensing signal to the controller 400. During operation, the gravity sensor 800 senses the weight in the flushing cavity 160, judges whether flushing is finished, and when the weight is lower than a preset value, the weight indicates that flushing is finished, the weight is fed back to the controller 400, and the controller 400 controls the electromagnetic valves to be closed, so that flushing of each flushing port is stopped; the gravity sensor 800 senses that the weight in the flushing cavity 160 is higher than a preset value, and determines that stains still remain in the flushing cavity 160, and at this time, the third electromagnetic valve 430 can be controlled to be opened, the booster pump 600 is controlled to be opened, and flushing of the flushing cavity is continued.

Except that adopting the gravity inductor can realize the response function, still can adopt infrared detector to carry out the volume scanning to the intracavity that washes by water, whether wash by water the intracavity and have the stain to remain according to the scanning to the intracavity volume that washes by water, concrete process is: the infrared scanning device is arranged on the inner side of the flushing cavity of the closestool and electrically connected with the controller, scans the three-dimensional characteristics of excrement in the closestool, outputs scanning parameters to the controller for three-dimensional characteristic processing, and judges whether the flushing cavity is flushed completely according to the three-dimensional characteristics. If the scanned three-dimensional characteristics are different from the preset three-dimensional characteristics of the flushing cavity and the difference reaches the preset flushing standard again, the controller controls the third electromagnetic valve to be opened and the booster water pump to be opened to continuously flush the flushing cavity. The function of automatically flushing the inner wall of the flushing cavity of the closestool is realized.

As shown in fig. 3 and 4, a pipe connection assembly is detachably connected to the bottom of the toilet body 100. The pipeline connecting assembly comprises a shell 900, wherein an access hole 930 with the diameter of 220mm is formed in the shell 900, and the access hole 930 is arranged to facilitate the inspection and maintenance of the pipeline. The first connecting pipeline 910 is arranged in the shell 900 and connected with the excrement sewage discharge hole 500, the second connecting pipeline 920 is arranged in the shell 900 and connected with the urine sewage discharge hole 510, and the first connecting pipeline 910 and the second connecting pipeline 920 are separately arranged, so that sewage and waste water separation treatment is facilitated, and convenience is brought to municipal treatment. The diameter of the first connecting duct 910 is 75mm, and the diameter of the second connecting duct 920 is 50 mm. During operation, sewage flushed by the excrement sewage discharge hole 500 enters the first connecting pipeline 910, and wastewater flowing into the urine sewage discharge hole 510 enters the second connecting pipeline 920, so that the sewage and the wastewater are separated. As shown in fig. 4, the first connecting duct 910 and the second connecting duct 920 are upward S-shaped in the housing 900, and a water sealing layer 940 with a height of 50mm or more is formed at a corner, so that odor under the drain pipe is effectively blocked by water sealing.

As shown in fig. 3, 4 and 5, the pipe connection assembly can be configured as a fish mouth type sewage bionic connector or a wastewater purification connector according to different appearances. Through the setting of the bionic connecting piece of fish-mouth type offal, the appearance shape of the whole closestool can be improved, and the appearance aesthetic feeling is improved through the bionic design. When setting up to waste water purification connecting piece, be provided with filter layer 950 in the second connecting tube 920 in shell 900, filter layer 950 is the activated carbon layer, handle the waste water in the second connecting tube 920 through the activated carbon layer, because waste water in the second connecting tube 920 is the urine bath, it can be simple relatively to handle, can realize purifying to water after through filter layer 950, the pipeline that second connecting tube 920 end-to-end connection is used for the circulating water to utilize, the urine is washed by water the back, waste water flows into second connecting tube 920, the pipeline that the circulating water utilized is arranged in through the pipeline, realize carrying out reuse after the filtration treatment, can be used to water flowers, wash low-requirement occasions such as ground.

As shown in fig. 5, when the pipe connection assembly is provided as a wastewater purification connection member, the fish tank 140 is also fixedly connected to the housing 900. When shell 900 fixed connection fish bowl 140, connection structure is as shown in fig. 6, first connecting tube 910 and second connecting tube 920 are fixed to be set up, be provided with activated carbon layer 150 in first connecting tube 910 and the second connecting tube 920, sewage is discharged from the pipe coupling subassembly, before the circulating water utilization pipeline gets into, activated carbon layer 150 can be handled sewage earlier in first connecting tube 910 and second connecting tube 920, more make things convenient for the later to realize purifying and reuse to water. The fish tank 140 is arranged in front of the pipeline connecting component, the fish tank 140 serves as the appearance surface of the closestool, and fish and other components for beauty are arranged in the fish tank 140, so that the aesthetic feeling of the design of the closestool is improved. It is contemplated that aquarium 140 may be configured as a picture or other decorative item. The pipeline connecting assembly is designed as a final assembly, can form an independent structural product and is convenient to realize combined installation with a closestool.

As shown in FIG. 2, a step position 130 is provided on the floor surface of the toilet body 100 in the left and right directions, and the step position 130 is convenient for a user to stand at a correct position when using the toilet, so that the posture of the user can be adjusted to a form according with the design of the toilet, and the excrement can be discharged to the corresponding optimal position of the toilet, thereby facilitating the flushing with less water and being cleaner.

Compared with the prior art, the invention judges the excrement and urine by detecting the service time through the sensor 440, opens the corresponding flushing port to execute the corresponding flushing program according to the excrement and urine judgment result, senses whether the flushing cavity 160 is flushed completely by the gravity sensor 800, opens the auxiliary flushing port 220 to flush the flushing cavity 160, and collects sewage by using a filter screen and a circulating water pipeline, so that the closestool is flushed by less water, and the collected sewage is recycled.

In this embodiment, an accurate flushing system may be further adopted, as shown in fig. 9, a section of detection channel 171 is pre-arranged in the water tank 170 of the toilet, the detection channel 171 is arranged in the vertical direction and is detected to be communicated with the water storage space of the water tank 170 through the lower end, thereby forming a communicating vessel, namely, the water surface height in the detection channel is the same as the water surface height in the water storage space in the water tank, a positioning terminal detection floating ball 172 for sensing the water surface height is arranged in the detection channel, the positioning terminal detection floating ball 172 can synchronously lift along with the lift of the water surface of the water tank, a Beidou positioning terminal 173 is arranged in the floating ball, the controller is in communication connection with the Beidou positioning terminal in the positioning terminal detection floating device, and the communication mode may adopt. When flushing, the positioning terminal detects that the Beidou positioning terminal in the floating ball senses the height of the water surface, height information is transmitted to the controller, the controller calculates the water yield according to the area of the cross section of the water tank, and when the water yield reaches a specified value, the controller transmits a signal to each electromagnetic valve to carry out valve closing and water cut-off operations; thus, accurate water consumption control is realized. The Beidou positioning terminal is in signal communication with the Beidou indoor base station to realize height positioning, the Beidou indoor base station can adopt an urban continuous operation reference station of a Beidou satellite positioning system, namely an urban continuous operation reference station system (CORS), Beidou navigation is civilized, the Shenzhen is taken as an example, 18 continuous operation Beidou satellite positioning service reference stations (continuous operating reference stations) are built in the Shenzhen, the coordinate of a certain point can be obtained through software algorithm calculation, and all regions of the Shenzhen city are covered. Through carrying out the height calibration with the theodolite when the closestool is installed, its precision accuracy reaches the millimeter level, does benefit to the accurate control flushing volume.

When the closestool flushes water, the flushing time and the flushing amount can be used independently, and the comprehensive use can also be carried out to achieve the water saving effect, for example, an accurate flushing system can be combined with stain residue detection in a flushing cavity of the closestool for decontamination, when excrement residues exist in the flushing cavity, the detection result of a gravity sensor or an infrared detector is quantized, namely, the quantity of the excrement is correlated with the drainage amount, the correlated data can be measured and set in advance, the flushing amount can be determined by the quantity of the residual excrement, when the residual excrement is more, the flushing amount is large, and when the residual excrement is less, the flushing amount is small. Therefore, repeated flushing can be avoided, and water saving is realized.

As shown in fig. 8, the present invention further provides a water saving method for a water saving toilet, including the steps of:

and S100, judging the excrement and urine of the human body entering the induction area.

Specifically, an inductor is fixedly arranged on a wall body behind the closestool, the inductor is an infrared detector, the infrared detector can sense the action time of a person who defecates before the closestool, the person is judged to defecate or urinate according to the action time, the inductor is arranged at a certain height and can detect a user, when the closestool is in work, the inductor detects the time when the user uses the closestool or stands in front of the closestool, the time is timed through a controller, and if the use time is more than 100s, the controller judges the defecating behavior; if the using time is less than 100s, the controller judges the urination behavior.

And step S200, opening a corresponding flushing port according to the judgment result of the excrement and urine.

Specifically, when the controller judges that the stool behavior is performed through time, the controller sends a control signal to a first electromagnetic valve and controls the first electromagnetic valve to start, the first electromagnetic valve opens a pipeline of a first flushing port, the first flushing port starts flushing, and the flushing water volume is the stool flushing water volume; when the controller judges the urine behavior through time, the controller sends a control signal to the second electromagnetic valve and controls the second electromagnetic valve to start, the second electromagnetic valve opens a pipeline of the second flushing port, the second flushing port opens flushing water, and the flushing water amount is urine flushing water amount. Because the shit is difficult to wash, and the urine is easy to wash, therefore, the shit washing water quantity is more than the urine washing water quantity, and the sizes of the washing pipelines are correspondingly set to be different, the washing pipelines are respectively arranged for the shit behavior and the urine behavior to respectively flush the shit behavior and the urine behavior, so that the shit water and the urine water are separated, and the purpose of saving water is achieved.

And step S440, sensing that the flushing cavity of the closestool is not flushed completely.

The specific process is that a gravity sensor is arranged below a flushing cavity of the closestool and is connected with a controller through an electric wire, and the gravity sensor transmits a sensing signal to the controller. When the gravity sensor works, the gravity sensor senses the weight in the flushing cavity and judges whether flushing is finished or not, when the weight is lower than a preset value, the flushing is finished, the weight is fed back to the controller, and the controller controls the electromagnetic valves to be closed, so that flushing of each flushing port is stopped; the gravity inductor senses that the weight in the flushing cavity is higher than a preset value, and judges that stains are still left in the flushing cavity, so that the flushing cavity needs to be flushed continuously.

And step S400, opening the auxiliary flushing port to flush the flushing cavity.

The specific process is that when the weight in the gravity sensor sensing flushing cavity is higher than the preset value and the dirt in the flushing cavity is judged to be left, the controller controls the third electromagnetic valve to be opened and the booster pump to be opened, the flushing cavity is flushed continuously until the flushing cavity is flushed completely, and the gravity sensor sensing flushing cavity stops flushing when the weight is lower than the preset value.

Finally, the invention provides a water-saving closestool, which judges the excrement and urine by detecting the using time of a human body using the closestool through a sensor 440, opens a corresponding flushing port according to the excrement and urine judgment result to execute a corresponding flushing program, respectively flushes the excrement and urine processes, finely controls flushing water, senses whether the flushing cavity is flushed completely through a gravity sensor 800, opens an auxiliary flushing port 220 and a booster pump 600 to generate high-pressure water to flush the flushing cavity when the flushing cavity cannot be flushed completely in the ordinary flushing process, realizes one-time flushing, avoids water waste in the ordinary multiple flushing process, further realizes special hole special discharge by the unique design of arranging an excrement sewage discharge hole 500 and a urine sewage discharge hole 510, realizes fine flushing control, can realize the shunting treatment of excrement sewage and urine, and realizes sewage and waste shunting, the circulating water is utilized by arranging the filter layer 950 in the second connecting pipeline 920 corresponding to the urine drainage hole 510; therefore, the scheme can achieve the purpose of saving water.

The reasonable value of the flush water amount in this embodiment can be determined by experiment. The design of the flushing cavity of the water-saving toilet can also be calculated by a mathematical theory or a formula, and the design of the flushing cavity of the water-saving toilet provides a method, and the inner wall of the flushing cavity of the water-saving toilet adopts a lotus leaf shape. The shape and structure of the lotus leaf are designed in a simulation mode, and by means of the principle of bionic design, the lotus leaf-shaped toilet wall is built first, and then a complete toilet model is built through design software. A complete model of the toilet is designed and established, the characteristics and the fundamental attributes of the toilet are abstracted, and the main parameters of the slope of the toilet (namely the angle of a connecting line from a water outlet of the toilet wall to the middle of a toilet hole) and the flushing quantity are calculated. And analyzing and modeling the main parameters. The slope of the toilet is selected from the slopes of 90 degrees, 0 degrees or 180 degrees, 45 degrees and golden section points, the inner wall of the flushing cavity is designed after the connection line angle is determined, the inner wall of the flushing cavity conforming to the fluid mechanics curve is formed, and the inner wall is adjusted to be 1: 0.618 or with a 1.618: 1 radian is roughly calculated, and the calculated gradient result is nearly 90 degrees (assumed value). And (4) selecting samples by utilizing the existing simulation technology or by photographing the real objects. At present, the precision can reach 5cm, the difference is on the middle, and then a physical model is printed out by using a 3D technology or a 3D physical model is printed out in proportion. If the error exists, the calculation of the mathematical model is carried out by using the Taylor expansion formula shown in the figure 5, and finally the gradient, the curve, the pressure and the reasonable accurate flushing water quantity are determined. In the actual life, the inner wall 160 of the flushing cavity is designed and molded according to the obtained reasonable value, and the reasonable value is applied for flushing.

In the present embodiment, data of the highest existing green building standard and the latest green building evaluation standard are proposed as effective data sources, because these data sources are also obtained by sampling survey and are calculated by some mathematical scientific methods and formulas such as a weighted average method, and thus, reliability is provided. Meanwhile, as the highest standard: the evaluation standard of green buildings in Guangdong province (DBJ/T15-83-2017, record number J11878-2017) is released by houses in Guangdong province and urban and rural construction halls, and has certain advancement. Extracting: and page P115 and page P116 of the green building evaluation standard of Guangdong province. The relevant criteria are shown in tables 1, 2, 3, 4 below:

TABLE 1 Water efficiency grade index for toilet

Water usage efficiency rating	Level 1	Stage 2	Grade 3
				Flow (L/s)	0.100	0.125	0.150

TABLE 2 Water efficiency grade index for urinal

TABLE 3 Water efficiency grade index for toilet flushing valve

TABLE 4 grade index of water efficiency for urinal flushing valve

Water usage efficiency rating	Level 1	Stage 2	Grade 3
				Amount of flushing water (L)	2.0	3.0	4.0

The conventional toilet is single-level or double-level flushing, and the water saving method in this embodiment is analyzed based on the case that the water efficiency level of the market is 2-level toilet. The minimum gear is 3.5L, the maximum gear is 5L, and the average value is 4L.

The closestool adopts the scheme of separating urine and feces and flushing water respectively, and simultaneously realizes accurate flushing with the assistance of an intelligent system. The special hole is used for flushing water, when the urinal is faced, the minimum flushing water quantity of the closestool is 2L, the maximum flushing water quantity of the closestool is 3L, and the average value is 2.5L. When the toilet is in face of stool, the minimum flushing amount of the toilet is 3.5L, the maximum flushing amount of the toilet is 5L, and the average value is 4L. Therefore, the closestool in the embodiment meets the flushing standard of green buildings, and saves a large amount of water resources compared with the traditional closestool. Can be visually expressed by XY plane diagrams, as shown in FIG. 10, FIG. 11 and FIG. 12; as can be seen from the three plane relation diagrams, the water-saving closestool in the embodiment saves water resources.

Therefore, the following criteria can be set in terms of the water amount setting of the water saving toilet: l is 2.5L (urine flushing), M is 4.0L (non-pressurized normal large discharge flushing), and H is 3.5L (pressurized feces flushing). The standard setting not only meets provincial level green building standard specifications, but also can achieve the effect of clean flushing.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims

1. A water-saving closestool comprises a closestool body and is characterized by also comprising a first flushing port arranged in a flushing cavity of the closestool body, a second flushing port arranged in the flushing cavity, a sensor fixedly arranged on the closestool body and used for sensing and judging excrement, a controller arranged at the rear part of the closestool body and electrically connected with the sensor, a first electromagnetic valve arranged on a flushing pipeline of the first flushing port and electrically connected with the controller and used for controlling the opening and closing of the first flushing port, and a second electromagnetic valve arranged on a flushing pipeline of the second flushing port and electrically connected with the controller and used for controlling the opening and closing of the second flushing port; when the closestool works, the sensor detects the time when a user uses the closestool or stands before the closestool, if the using time is more than 100s, the controller judges the closestool to be in a defecation behavior, and the controller sends a control signal to the first electromagnetic valve and controls the first electromagnetic valve to be started; if the using time is less than 100s, the controller judges that the urination is performed, and the controller sends a control signal to the second electromagnetic valve and controls the second electromagnetic valve to start;

the flushing cavity is internally provided with a stool sewage hole and a urine sewage hole which are arranged side by side along the front-back direction, the first flushing port is positioned behind the stool sewage hole, and the second flushing port is positioned in front of the urine sewage hole; an auxiliary flushing port is further arranged in the flushing cavity and is positioned between the excrement sewage draining hole and the urine sewage draining hole, a third electromagnetic valve is arranged on a connecting pipeline of the auxiliary flushing port and is electrically connected with the controller and used for controlling the auxiliary flushing port to be opened and closed, a booster water pump is arranged on a water pipe connected with the auxiliary flushing port and is opened through the controller;

the surface of the flushing cavity is coated with a nano coating layer;

an infrared scanning device is arranged at the inner side of a flushing cavity of the closestool and is electrically connected with the controller, the three-dimensional characteristics of excrement in the closestool are scanned, scanning parameters are output to the controller for three-dimensional characteristic processing, and whether the flushing cavity is flushed completely is judged according to the three-dimensional characteristics;

the bottom of the closestool body is detachably connected with a pipeline connecting assembly, the pipeline connecting assembly comprises a shell, a first connecting pipeline arranged in the shell and a second connecting pipeline arranged in the shell, one end of the first connecting pipeline is connected with a excrement sewage hole, and one end of the second connecting pipeline is connected with a urine sewage hole; the first connecting pipeline and the second connecting pipeline are separately arranged to realize the separation treatment of sewage and wastewater;

the pipeline connecting assembly is provided with a filtering layer used for filtering wastewater discharged after urination in a second connecting pipeline, the tail end of the second connecting pipeline is used for connecting a pipeline for recycling water, and the filtering layer is an activated carbon layer;

a detection channel is arranged in a water tank of the closestool in advance, the detection channel is arranged along the vertical direction and is communicated with a water storage space of the water tank through detection to the lower end, a positioning terminal detection floating ball used for sensing the height of the water surface is arranged in the detection channel, a Beidou positioning terminal is arranged in the positioning terminal detection floating ball, the controller is in communication connection with the Beidou positioning terminal in the positioning terminal detection floating device, and the communication mode can adopt wireless communication or wired communication; the theodolite is used for carrying out height calibration during the installation of the closestool, the precision of the theodolite reaches a millimeter level accurately, and the water flushing quantity is controlled accurately.

2. A water-saving toilet according to claim 1, wherein there are two auxiliary flushing ports, and the two auxiliary flushing ports are located on the inner wall of the flushing chamber in the left-right direction, respectively.

3. A water-saving toilet according to claim 1, further comprising a gravity sensor electrically connected to the controller for sensing whether the stains in the flush chamber are flushed clean.

4. A water-saving toilet according to claim 1, wherein the first connecting pipe is provided with a water seal, and the second connecting pipe is provided with a water seal.

5. A water-saving toilet according to claim 1, wherein the toilet body is provided with foot positions on both left and right sides thereof.