CN101424095B - Toilet without cistern - Google Patents

Toilet without cistern Download PDF

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Publication number
CN101424095B
CN101424095B CN2008101751888A CN200810175188A CN101424095B CN 101424095 B CN101424095 B CN 101424095B CN 2008101751888 A CN2008101751888 A CN 2008101751888A CN 200810175188 A CN200810175188 A CN 200810175188A CN 101424095 B CN101424095 B CN 101424095B
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CN
China
Prior art keywords
water
pipe
blow
negative pressure
opening
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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.)
Expired - Fee Related
Application number
CN2008101751888A
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Chinese (zh)
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CN101424095A (en
Inventor
王可威
Original Assignee
王可威
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
Priority to CN200820070537 priority Critical
Priority to CN200820070537.5 priority
Application filed by 王可威 filed Critical 王可威
Priority to CN2008101751888A priority patent/CN101424095B/en
Publication of CN101424095A publication Critical patent/CN101424095A/en
Application granted granted Critical
Publication of CN101424095B publication Critical patent/CN101424095B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a squatting pan without a water tank, which comprises a squatting urinal, a water flushing part, a water delivery part and a negative pressure generating and driving device. The squatting urinal comprises a bedpan and a drain pipe provided with a drain trap, the water flushing part comprises a water duct and a water flushing pipe which is communicated with the water duct and arranged in the squatting urinal, the drain pipe is provided with the drain trap and provided with an opening above or below the drain trap, and the negative pressure generating and driving device is arranged at the opening and is linked with the water delivery part. The squatting pan without the water tank has the advantages of simple structure, stable performance, convenient use, clean flushing and water saving; and can be widely used in houses.

Description

Toilet without cistern
Technical field
The present invention relates to water-closet sanitary installation, relate in particular to a kind of toilet without cistern.
Background technology
Present the most frequently used storage tank of toilet operated by rotary motion, store 10~15 kg of water in the storage tank, the sitting toilet lower end is provided with one " S " type sewer pipe, adopt " S " curved water-seal principle, this toilet water supply volume is very big, for the so very deficient country of water resource of China is a kind of great waste, so, toilet without cistern just arises at the historic moment, its water-saving result is better, Chinese patent 02116299.9 disclosed Dowble trap bowl for toilet patent, its structure are complicated, utilize tap water and hydraulic cylinder as depression generator, the negative pressure that hydraulic cylinder produced is applied between two traps, use less clear water to replace the interior mixing material of bedpan trap, reach and rinse well, water-saving purpose, spatial volume is bigger between this Dowble trap bowl, hydraulic cylinder is a cylinder body with the cylinder of bleeding, big conference has influence on takes out the negative pressure effect, and the flow velocity of water can be a greater impact during flushing, and the developing result that causes drawing water is not good.
Summary of the invention
The present invention is in order to solve weak point of the prior art, provide a kind of simple in structure, take out effective, the toilet without cistern of water saving more of negative pressure.
For solving the problems of the technologies described above, toilet without cistern of the present invention, comprise sitting toilet, bath part, water delivery part and negative pressure generation drive unit, sitting toilet comprises bedpan and is provided with the blow-off pipe of trap, bath part comprise water-supply-pipe and be communicated with water-supply-pipe be arranged on jet water spout in the sitting toilet, described blow-off pipe is provided with a trap, blow-off pipe is provided with opening above or below trap, negative pressure generation drive unit is arranged at this opening part, and negative pressure generation drive unit and water delivery partly link.
Described negative pressure generation drive unit is arranged on the opening part of blow-off pipe in the trap top, negative pressure generation drive unit comprises the cylinder of bleeding with the corresponding opening of blow-off pipe opening, bleed to be provided with in the cylinder and can be communicated with or the gravity post of shutoff blow-off pipe, the cylinder top of bleeding is provided with steam vent, bleed cylinder upper end is provided with hydraulic cylinder, hydraulic cylinder comprises the flange and the inner piston of bottom, the gravity post is connected interactive with piston by a connecting rod, flange is provided with and the partially communicating opening of water delivery, cavity between this open communication flange and the piston, hydraulic cylinder upper portion side wall are provided with the opening that is communicated with the part water-supply-pipe of washing by water.
Described blow-off pipe is provided with opening in the trap below, the cylinder bottom open communication therewith of bleeding of negative pressure generation drive unit, bleed and be provided with the gravity post in the cylinder, the cylinder top of bleeding is provided with steam vent, bleed cylinder upper end is provided with hydraulic cylinder, hydraulic cylinder comprises the flange and the inner piston of bottom, the gravity post is connected interactive with piston by connecting rod, flange is provided with and the partially communicating opening of water delivery, cavity between this open communication flange and the piston, the hydraulic cylinder upper portion side wall is provided with the opening that is communicated with the part water-supply-pipe of washing by water, and blow-off pipe lower port place is provided with one way valve.
Described negative pressure generation drive unit is arranged on the opening part of blow-off pipe in the trap top, negative pressure generation drive unit comprises the cylinder of bleeding with the corresponding opening of blow-off pipe opening, bleed to be provided with in the cylinder and can be communicated with or the gravity post of shutoff blow-off pipe, bleed and be respectively equipped with fixed pulley on the sitting toilet of cylinder upside and downside, gravity column top central authorities connect a cotton rope, and cotton rope partly links by two fixed pulleys and water delivery.
Described negative pressure generation drive unit is arranged on the opening part of blow-off pipe in the trap top, negative pressure generation drive unit comprises the cylinder of bleeding with the corresponding opening of blow-off pipe opening, bleed to be provided with in the cylinder and can be communicated with or the gravity post of shutoff blow-off pipe, bleed cylinder top is provided with the motor that is in transmission connection with the gravity post, motor and the electromagnetism water valve control connection that is located at rear, toilet seat pond, electromagnetism water valve upper end is provided with control button, the water inlet of electromagnetism water valve is connected with water-supply-pipe with running water pipe respectively with delivery port, and blow-off pipe lower port place is provided with one way valve.
Described water delivery part branch comprises the penstock that is arranged on sitting toilet front end bottom, the penstock top is provided with a leverage, lever is hinged with the support that is located on the penstock, and the lever front end is provided with the pedal of control penstock opening and closing, and the pedal rear end downside cooperates with the control member pushing of penstock.
Described penstock comprises the spool that can move forward and backward in valve body and the valve body, the valve body front end is provided with the tap water water inlet, the valve body both sides are respectively equipped with water transport port and water return outlet, the spool rear end is stretched out valve body and is cooperated with the pedal pushing, the spool periphery is provided with the annular return flume that is communicated with water return outlet and water transport port, spool is a hollow structure, spool rear end in water transport port one side is provided with the opening that is communicated with the spool cavity, the spool front end side wall is provided with several inlet openings that can be communicated with the spool cavity, and the spool front-end and back-end are equipped with joint ring.
Described valve body front end is provided with hydroecium, and the hydroecium front portion is provided with an one way valve, and hydroecium rear portion circumferential side wall is provided with several inlet openings, and one way valve is provided with the aperture that is communicated with hydroecium, is provided with the screw of adjustable orifice flux in the aperture, and spool front end and hydroecium are movingly.
Adopt technique scheme, utilize the condition of the stifled blow-off pipe of water seal of storage in the trap, use negative pressure generation drive unit to carrying out the unidirectional negative pressure of taking out in the blow-off pipe, can make in the bedpan just dirty being taken away earlier, and then bedpan is washed away, like this will more smooth and easy, quick, water saving, only be provided with a trap, the space of sealing is less, and gravity post lower surface is positioned at the trap horizontal plane once, takes out the negative pressure better effects if; Can utilize the driving force of the pressure of tap water as negative pressure generation drive unit, also can utilize electric power or artificial driving force, negative pressure is taken out in blow-off pipe inner sealing space to trap upside or downside, the penstock of artificial control water delivery part, the interlock of negative pressure generation drive unit and penstock, take just dirt earlier away after, wash bedpan with tap water again, the blow-off pipe lower port is provided with one way valve can seal blow-off pipe, increases the effect of taking out negative pressure on the blow-off pipe; The present invention is simple in structure, stable performance, easy to use, rinses well, using water wisely, can extensively be used by family.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the structural representation of the embodiment of the invention two;
Fig. 3 is the structural representation of the embodiment of the invention three;
Fig. 4 is the structural representation of penstock embodiment one of the present invention;
Fig. 5 is the structural representation of the embodiment of the invention four;
Fig. 6 is the structural representation of penstock embodiment two of the present invention.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, toilet without cistern of the present invention, comprise sitting toilet 10, the bath part, water delivery part and negative pressure generation drive unit, sitting toilet 10 comprises bedpan 1 and is provided with the blow-off pipe 2 of a trap 3, blow-off pipe 2 is provided with opening 45 above or below trap 3, negative pressure generation drive unit is arranged at this opening 45 places, negative pressure generation drive unit and water delivery partly link, bath part comprise water-supply-pipe 4 and is communicated with water-supply-pipe 4 be arranged on the interior jet water spout 5 of sitting toilet 10, the water delivery part branch comprises the penstock 6 that is arranged on sitting toilet 10 front end bottoms, penstock 6 tops are provided with a leverage, the lever 9 of leverage is hinged with the support 8 that is located on the penstock 6, lever 9 front ends are provided with the pedal 7 of control penstock 6 opening and closing, pedal 7 rear end downsides cooperate with the control member pushing of penstock 6, penstock 6 comprises the spool 12 that can move forward and backward in valve body 11 and the valve body 11, valve body 11 front ends are provided with tap water water inlet 13, valve body 11 both sides are respectively equipped with water transport port 14 and water return outlet 15, spool 12 rear ends are stretched out valve body 11 and are cooperated with pedal 7 pushings, spool 12 sides are provided with the annular water tank 16 that is communicated with water return outlet 15 and water transport port 14, spool 12 inside are provided with cavity 17, spool 12 rear ends in water transport port 14 1 sides are provided with the opening 18 that is communicated with the cavity 17 of spool 12, spool 12 rear ends in water return outlet 15 1 sides are provided with the opening 70 that is communicated with the cavity 17 of spool 12, opening 70 can play the effect that replenishes discharging quantity of water, spool 12 front end side wall are provided with some inlet openings 20 that are communicated with spool 12 cavitys 17 and valve body 11 cavitys 19, spool 12 front-end and back-end are equipped with joint ring 65, and sitting toilet 10 rear portions also are provided with backrest 60.
As shown in Figure 6, be with difference shown in Figure 4: valve body 11 front ends at penstock 6 are established a hydroecium 90, hydroecium 90 lower circumference sidewalls are provided with several inlet openings 85, hydroecium 90 front ends are provided with one way valve 81, one way valve 81 is provided with the aperture 82 that is communicated with hydroecium 90, the front end of aperture 82 is provided with the screw 83 of adjustable water saving flux, and spool 12 front ends and hydroecium 90 are movingly.
Embodiment one: with reference to Fig. 1 and Fig. 4, negative pressure generation drive unit is arranged on opening 45 places of blow-off pipe 2 in trap 3 tops, negative pressure generation drive unit comprises the cylinder 21 of bleeding, bleed cylinder 21 sides and bottom is connected with the opening 45 of blow-off pipe 2, but be provided with the gravity post 22 of connected sum shutoff blow-off pipe 2 in the cylinder 21 of bleeding, cylinder 21 upper portion side wall of bleeding are provided with return duct 80 and the plurality of rows pore 55 that is communicated with blow-off pipe 2, ponding in the cylinder 21 of bleeding above the gravity post 22 can be discharged in the blow-off pipe 2 by return duct 80, the lower end of gravity post 22 is provided with the joint ring 29 that trap 3 is sealed, cylinder 21 tops of bleeding are provided with hydraulic cylinder 24, hydraulic cylinder 24 comprises the flange 23 and the inner piston 25 of bottom, gravity post 22 is connected interactive with piston 25 by lever 26, flange 23 is provided with and the partially communicating opening 27 of water delivery, the cavity that this opening 27 is communicated with between flange 23 and the piston 25, hydraulic cylinder 24 upper side are provided with the opening 28 that is communicated with the part water-supply-pipe 4 of washing by water.
During use, foot pedal 7, pedal 7 promotes spool 12 forward and moves forward, this moment, some inlet openings 20 were communicated with valve body 11 cavitys 19, and the opening 18 of spool 12 cavitys 17 is communicated with water transport port 14, and tap water just enters opening 27 from tap water water inlet 13, tap water with certain pressure is with piston 25 jack-up slowly, lever 26 drives gravity post 22 and rises, and is bled in the space between trap 3 waters surface and the gravity post 22, forms negative pressure space at this.After blow-off pipe 2 is communicated with up and down, just the dirt of blow-off pipe 2 epimeres is under the effect of gravity and negative pressure, fall rapidly, enter trap 3 and form siphonage, discharge blow-off pipe 2, when piston 25 rises to opening 28 tops, tap water is by opening 28 process water-supply-pipes 4, enter the jet water spout 5 in the sitting toilet 10, jet water spout 5 begins water spray rinses bedpan 1 well, and at this moment with pedal 7 returns, penstock 6 is closed, water transport port 14 on the penstock 6 and water return outlet 15 are communicated with by annular water tank 16, with piston 25 return that slowly falls, the waters in the hydraulic cylinder 24 are back to bedpan 1 through annular water tank 16 and water return outlet 15 by pipeline through water transport port 14 by pipeline by opening 27 to gravity post 22, in addition under the atmospheric pressure effect under the self gravitation effect, the surplus current of pipeline advance in the bedpan 1 between opening 28 and the water-supply-pipe 4, use for secondary.
With reference to Fig. 6, during use, be with above-mentioned difference: spool 12 moves forward in addition, water in the compressing hydroecium 90, water is discharged by tap 88 by one way valve 81, vacuum in the hydroecium 90, and tap water (high pressure) enters water transport port 14 by inlet opening 20 by opening 18 by inlet opening 85.Simultaneously, tap water is entered in the hydroecium 90 by aperture 82, because pressure differential promotes the mobile backward valve-off of spool 12.Wherein the screw 83 that is provided with in the aperture 82 can be adjusted aperture 82 water-flowing amounts, the length of by-pass valve control time-delay.
Embodiment two: with reference to Fig. 2, different with embodiment one is: the gravity post 22 of negative pressure generation drive unit is taken out negative pressure and is provided with one way valve 50 at blow-off pipe 2 lower port places by the enclosure space in the blow-off pipe 2 of 30 pairs of trap 3 bottoms of pipeline.Present embodiment is applicable to that trap 3 is arranged on the toilet of blow-off pipe 2 epimeres, and blow-off pipe 2 lower port places must be provided with one way valve 50, otherwise can't take out negative pressure, the water return outlet 15 on the penstock 6, insert 2 times rows of blow-off pipe mouthful top by pipeline, individual event valve 50 sealing parts are washed.
Embodiment three: with reference to Fig. 3, different with embodiment one is: be provided with the hinged lever 9 of support 8 on the rear end of pedal 7, lever 9 is connected with gravity post 22 tops through fixed pulley 33, fixed pulley 34 by cotton rope 32, negative pressure generation drive unit take out negative pressure power from lever force, by foot pedal 7, drive lever 9, lever 9 drives 22 risings of gravity post negative pressure is taken out in the space on trap 3 tops, the water transport port 14 of penstock 6 directly is connected with water-supply-pipe 4 simultaneously, washes away through 5 pairs of bedpans 1 of jet water spout.Present embodiment needn't be used members such as embodiment one described hydraulic cylinder and piston.
Embodiment four: with reference to Fig. 5, different with above-mentioned three embodiment is, the power utilization electric power of the negative pressure generation drive unit of present embodiment, cylinder 21 tops of bleeding are provided with the motor 64 that is in transmission connection with gravity post 22, be in transmission connection by stay cord 66 between motor 64 and the gravity post 22, motor 64 by lead 65 be located at the toilet seat pond after the electromagnetism water valve 62 that can delay time be connected, electromagnetism water valve 62 is fixed on the backrest 60, electromagnetism water valve 62 upper ends are provided with control button 63, control button 63 protrudes on backrest 60 tops, the water inlet pipe 67 of electromagnetism water valve 62 is connected with water-supply-pipe 4 with running water pipe respectively with outlet pipe 68, and blow-off pipe 2 lower port places are provided with one way valve 50.During use, only need operation 63 pairs of electromagnetism water valves 62 of control button and motor 64 to carry out opening and closing, electromagnetism water valve 62 has delay function, motor 64 promotes gravity post 22 earlier, blow-off pipe 2 connects discharges dirt earlier, electromagnetism water valve 62 is opened then, and water inlet pipe 67 connects with outlet pipe 68, washes by water in toilet seat pond 10 by water-supply-pipe 4.
In addition, under the situation that has a power failure or cut off the water, can be by pulling cotton rope or the stay cord that sets in advance on the gravity post 22 in the cylinder 21 of bleeding, control blow-off pipe 2 carries out blowdown.Trap 3 on the blow-off pipe 2, one way valve 50 all are used for shutoff blow-off pipe 2 lower port, are beneficial to deposit just dirtyly in the unidirectional twitch of the cylinder 21 of bleeding, and both can be provided with separately, also can be provided with simultaneously.The valve of selling on the market also is suitable for water delivery of the present invention by little transformation partly to be used.

Claims (7)

1. toilet without cistern, comprise sitting toilet, the bath part, water delivery part and negative pressure generation drive unit, sitting toilet comprises bedpan and is provided with the blow-off pipe of trap, bath part comprise water-supply-pipe and be communicated with water-supply-pipe be arranged on jet water spout in the sitting toilet, blow-off pipe is provided with a trap, blow-off pipe is provided with opening in the trap top, negative pressure generation drive unit is arranged at this opening part, negative pressure generation drive unit and water delivery partly link, it is characterized in that: described negative pressure generation drive unit comprises the cylinder of bleeding of corresponding connection with the blow-off pipe opening, bleed to be provided with in the cylinder and can be communicated with or the gravity post of shutoff blow-off pipe, the cylinder top of bleeding is provided with steam vent, bleed cylinder upper end is provided with hydraulic cylinder, hydraulic cylinder comprises the flange and the inner piston of bottom, gravity post and piston are connected interactive by a connecting rod, flange is provided with the partially communicating opening of water delivery and is used to be communicated with cavity between flange and the piston, and the hydraulic cylinder upper portion side wall is provided with the opening that is communicated with the part water-supply-pipe of washing by water.
2. toilet without cistern, comprise sitting toilet, the bath part, water delivery part and negative pressure generation drive unit, sitting toilet comprises bedpan and is provided with the blow-off pipe of trap, bath part comprise water-supply-pipe and be communicated with water-supply-pipe be arranged on jet water spout in the sitting toilet, blow-off pipe is provided with a trap, blow-off pipe is provided with opening in the trap below, negative pressure generation drive unit is arranged at this opening part, negative pressure generation drive unit and water delivery partly link, it is characterized in that: described negative pressure generation drive unit comprises the cylinder of bleeding of corresponding connection with the blow-off pipe opening, bleed to be provided with in the cylinder and can be communicated with or the gravity post of shutoff blow-off pipe, the cylinder top of bleeding is provided with steam vent, bleed cylinder upper end is provided with hydraulic cylinder, hydraulic cylinder comprises the flange and the inner piston of bottom, the gravity post is connected interactive with piston by connecting rod, flange is provided with the partially communicating opening of water delivery and is used to be communicated with cavity between flange and the piston, the hydraulic cylinder upper portion side wall is provided with the opening that is communicated with the part water-supply-pipe of washing by water, and blow-off pipe lower port place is provided with one way valve.
3. toilet without cistern, comprise sitting toilet, the bath part, water delivery part and negative pressure generation drive unit, sitting toilet comprises bedpan and is provided with the blow-off pipe of trap, bath part comprise water-supply-pipe and be communicated with water-supply-pipe be arranged on jet water spout in the sitting toilet, blow-off pipe is provided with a trap, blow-off pipe is provided with opening in the trap top, negative pressure generation drive unit is arranged at this opening part, negative pressure generation drive unit and water delivery partly link, it is characterized in that: described negative pressure generation drive unit comprises the cylinder of bleeding of corresponding connection with the blow-off pipe opening, bleed to be provided with in the cylinder and can be communicated with or the gravity post of shutoff blow-off pipe, bleed and be respectively equipped with fixed pulley on the sitting toilet of cylinder upside and downside, gravity column top central authorities connect a cotton rope, and cotton rope partly links by two fixed pulleys and water delivery.
4. toilet without cistern, comprise sitting toilet, the bath part, water delivery part and negative pressure generation drive unit, sitting toilet comprises bedpan and is provided with the blow-off pipe of trap, bath part comprise water-supply-pipe and be communicated with water-supply-pipe be arranged on jet water spout in the sitting toilet, blow-off pipe is provided with a trap, blow-off pipe is provided with opening in the trap top, negative pressure generation drive unit is arranged at this opening part, negative pressure generation drive unit and water delivery partly link, it is characterized in that: described negative pressure generation drive unit comprises the cylinder of bleeding of corresponding connection with the blow-off pipe opening, bleed to be provided with in the cylinder and can be communicated with or the gravity post of shutoff blow-off pipe, bleed cylinder top is provided with the motor that is in transmission connection with the gravity post, motor and the electromagnetism water valve control connection that is located at rear, toilet seat pond, electromagnetism water valve upper end is provided with control button, the water inlet of electromagnetism water valve is connected with water-supply-pipe with running water pipe respectively with delivery port, and blow-off pipe lower port place is provided with one way valve.
5. according to claim 1 or 2 or 3 described toilet without cistern, it is characterized in that: described water delivery part branch comprises the penstock that is arranged on sitting toilet front end bottom, the penstock top is provided with a leverage, lever is hinged with the support that is located on the penstock, the lever front end is provided with the pedal of control penstock opening and closing, and the pedal rear end downside cooperates with the control member pushing of penstock.
6. toilet without cistern according to claim 5, it is characterized in that: described penstock comprises the spool that can move forward and backward in valve body and the valve body, the valve body front end is provided with the tap water water inlet, the valve body both sides are respectively equipped with water transport port and water return outlet, the spool rear end is stretched out valve body and is cooperated with the pedal pushing, the spool periphery is provided with the annular return flume that is communicated with water return outlet and water transport port, spool is a hollow structure, spool rear end in water transport port one side is provided with the opening that is communicated with the spool cavity, the spool front end side wall is provided with several inlet openings that can be communicated with the spool cavity, and the spool front-end and back-end are equipped with joint ring.
7. toilet without cistern according to claim 6, it is characterized in that: described valve body front end is provided with hydroecium, hydroecium rear portion circumferential side wall is provided with several inlet openings, the hydroecium front portion is provided with an one way valve, one way valve is provided with the aperture that is communicated with hydroecium, be provided with the screw of adjustable orifice flux in the aperture, spool front end and hydroecium are movingly.
CN2008101751888A 2008-05-16 2008-10-28 Toilet without cistern Expired - Fee Related CN101424095B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200820070537 2008-05-16
CN200820070537.5 2008-05-16
CN2008101751888A CN101424095B (en) 2008-05-16 2008-10-28 Toilet without cistern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101751888A CN101424095B (en) 2008-05-16 2008-10-28 Toilet without cistern

Publications (2)

Publication Number Publication Date
CN101424095A CN101424095A (en) 2009-05-06
CN101424095B true CN101424095B (en) 2010-11-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101751888A Expired - Fee Related CN101424095B (en) 2008-05-16 2008-10-28 Toilet without cistern

Country Status (1)

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CN (1) CN101424095B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104099981A (en) * 2013-04-10 2014-10-15 杨瀚翔 Multifunctional environment-friendly water closet
CN103352505A (en) * 2013-07-08 2013-10-16 郑运婷 Foot-clamping-resistant squatting toilet
CN103352506B (en) * 2013-07-08 2014-10-29 郑运婷 Child squatting toilet
CN108842878B (en) * 2014-04-11 2020-04-21 范慧飞 Vacuum-assisted flush toilet
CN104631594B (en) * 2014-12-31 2016-03-23 李云祥 Automatic toilet
CN110670691A (en) * 2018-07-03 2020-01-10 王三保 Energy-saving automatic toilet
CN110241905A (en) * 2019-06-05 2019-09-17 辽宁甲乙科技股份有限公司 The online negative-pressure vacuum system in public lavatory

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Granted publication date: 20101117

Termination date: 20121028