CN103882925B - A kind of vacuum assist toilet trap closing system with time-delay drawing air to close - Google Patents
A kind of vacuum assist toilet trap closing system with time-delay drawing air to close Download PDFInfo
- Publication number
- CN103882925B CN103882925B CN201410144508.9A CN201410144508A CN103882925B CN 103882925 B CN103882925 B CN 103882925B CN 201410144508 A CN201410144508 A CN 201410144508A CN 103882925 B CN103882925 B CN 103882925B
- Authority
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- China
- Prior art keywords
- water
- containment portion
- time
- keg float
- drawing air
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 238000011010 flushing procedure Methods 0.000 claims abstract description 9
- 230000007423 decrease Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 230000002459 sustained effect Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000003911 water pollution Methods 0.000 abstract 1
- 238000005192 partition Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 208000035473 Communicable disease Diseases 0.000 description 2
- 208000030852 Parasitic disease Diseases 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 230000001717 pathogenic effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sanitary Device For Flush Toilet (AREA)
Abstract
The present invention discloses a kind of vacuum assist toilet trap closing system with time-delay drawing air to close.The water closet of the present invention, including a toilet base, one water tank to wash away start provide water to the toilet base in, one carries water and washes away pipeline towards downstream direction to sewer, one vacuum source being applied to during closestool flushing on bend channel, a time-delay drawing air to close system of closing are connected on above-mentioned bend for controlling the opening and closing of vacuum source channel cycle.It thes improvement is that：The time-delay drawing air to close closes the extraction force that system is in open state to ensure vacuum source to bend channel at closestool flushing initial stage, it is closed in the closestool flushing later stage to prevent dirt from entering water tank, prevents from causing dirt to enter water system because inlet valve siphonage fails.Using the water closet of the structure, can while effectively realizing water-saving, prevent from entering water system due to dirt and caused by water pollution and prevented water seal caused by inhaling insufficient.
Description
Technical field
The present invention relates to water closet, more particularly to a kind of vacuum assist toilet trap closing system with time-delay drawing air to close.
Background technology
Vacuum assist toilet trap, required pressure difference is reached using less water and is preferably washed away when can increase siphon
Effect, and not will produce additional noise, it is researched and developed by professional person always.But vacuum aided is used to generate more
The closestool of big siphon will result in this way due to there is a vacuum to need to be added on toilet base discharging curved channel in scour process
Pollutant is entered by vacuum passage in water tank, and then pollutes domestic water possibly into water supply line.No matter liquid or
Person's solid feces all contain the pathogen of a large amount of foul smell and a variety of enteric infectious diseases and parasitic disease, if into water tank or
In person's water supply line, the problems such as just will produce pollution.So using the water closet of vacuum aided, it is necessary to solve this and ask
Topic.
The patent No. 95101429.3 discloses a kind of vacuum assist toilet trap of the double stench traps of band, including a closestool goes out
Mouthful, it is there are one center line, and there are one approximately fixed to predefine along its at least half of length band for the toilet outlet
Cross section, and there is upper bend and lower bend and one to be located at the bend channel between two bends, one in the closestool flushing phase
Between be applied to vacuum source on bend channel, thus the attached drawing of description and this patent leads to it is found that providing vacuum source to the bend
Air flue both ends on road are all opening-wide states, a large amount of contained by liquid foregoing in this way or solid feces
Foul smell and the pathogen of a variety of enteric infectious diseases and parasitic disease are easily accessible in water tank, and then are entered in water pipe.
The for another example disclosed trap closestool that pressurizes of the patent No. 200880020357.9, provides a kind of reflux preventing member,
During normal closestool operation, only has the water of low pressure in drain outlet.However, if pressure increases to during being higher by normal rinse
The pressure occurred（About 10 centimeter water columns）Too much, as in practical toilet plunger, then reflux preventing member 120 prevents water
It is forced upper inflow container 42 along conduit 90 with waste.This patent disclosing a kind of prevents sewage from entering water using differential pressure principle
The method of case, its shortcoming is that, only when pressure difference reaches setting value（About 10 centimeter water columns）Afterwards, flow back preventing member ability
It closes, when pressure difference is less than this setting value, opening is unlimited.And during normal wash away, pressure difference is will not to reach
Setting value is arrived, so in normal scour process, air delivery tube is unlimited, and thus inevitably has foul smell
Enter in water tank with pollutant.
In addition, using the water closet of vacuum aided, due to the presence of vacuum source, it is easy to inhale the water of upper trap
It is complete, cause water seal insufficient.
Invention content
By the closestool of the present invention, disadvantages mentioned above can be solved, the further advantage to will now be described in fact.The present invention passes through
One time-delay drawing air to close is set in third containment portion and closes system, vacuum source channels can be closed in the closestool flushing later stage and reach anti-
Only foul smell and pollutant, which enter water tank and prevented from inhaling, causes trap seal insufficient.
The purpose of the present invention reaches by following technical solution：
A kind of vacuum assist toilet trap closing system with time-delay drawing air to close, water closet of the invention, including a horse
Bucket pedestal, for a water tank to start to provide in water to the toilet base what is washed away, one carries water towards downstream direction
To the pipeline that washes away of sewer, a vacuum source being applied to during closestool flushing on bend channel, a time-delay drawing air to close
The system of closing is connected on above-mentioned bend channel for controlling the opening and closing of vacuum source channel cycle.
The water tank is divided into the first containment portion, the second containment portion, third containment portion, first water storage part
It is connected with an inlet valve in point, a drain valve is connected in second containment portion, is connected in the third containment portion
The one time-delay drawing air to close closes system.
First containment portion and the connection of the second containment portion bottom, second containment portion and the third water storage
Section bottom is connected to, the third containment portion upper end closed.
The time-delay drawing air to close closes system by a main body, a connecting rod, keg float, a delay check valve, a gasket group in one
At.
The time-delay drawing air to close, which closes system body, has a hollow tube, hollow tube to be connected to toilet base bend channel,
The main body further includes the outer keg float of a bottom through-hole, and the interior keg float is set in the outer keg float, the delay check valve
It is set in the bottom through-hole of the outer keg float, the main body further includes having a pair of brackets, and the connecting rod is socketed on the holder
On, the gasket is fixed on the connecting rod, and the connecting rod and the interior keg float are hinged.
The connecting rod can be moved around the holder pivots, the interior keg float in outer keg float, and the interior keg float can
With the opposite sliding in connecting rod, the interior keg float and connecting rod are linked system, drive connecting rod around branch when interior keg float rises or falls
Frame rotates.
There is a sealing surface in the hollow tube upper end of the main body, drives connecting rod around holder pivots when interior keg float declines, described close
Packing is bonded the sealing surface and realizes sealing.
The first containment portion, the second containment portion, third containment portion and the outer keg float of the water tank have one identical
Highest intake water level, the water level of the second containment portion and third containment portion is in sustained height always.
The second containment portion and third containment portion water level rapid decrease of the water tank when starting draining, and outer keg float
The water level decreasing speed of interior the second containment portion of water level decreasing speed ratio and third containment portion is slow, to realize time-delay closing
Function.
The present invention, which compares prior art, following remarkable advantage：
1. close system using time-delay drawing air to close, usage time controls the closing and unlatching of vacuum source channels, control is accurate,
Reliably, stablize；
2. closing system using time-delay drawing air to close, vacuum source channels can be completely closed, foul smell and pollution are preferably prevented
Object enters water tank and water system；
3. closing system using time-delay drawing air to close, closing of the vacuum source channels in the closestool flushing later stage can be accurately controlled,
Prevent the water of trap from causing water seal insufficient due to crossing to inhale.
Description of the drawings
Fig. 1 is the partial cross-sectional perspective view of the present invention；
Fig. 2 is the fragmentary sectional elevation view of the present invention；
Fig. 3 is the tank parts stereogram of the present invention；
Fig. 4 is that the time-delay drawing air to close of the present invention closes stereogram when system air channel is opened.
Specific implementation mode
In conjunction with the drawings and specific embodiments, the present invention is further described.
The basic ideas of the present invention are to close system using time-delay drawing air to close, to realize accurately controlling so that every to vacuum source
It is secondary to wash away more reliable and stable, prevent foul smell and pollutant from entering water tank, and prevent due to cross inhale caused by water seal it is insufficient.
With reference to shown in figure 1,2,3,4, the vacuum assist toilet trap 10 that system is closed with time-delay drawing air to close of the present embodiment, packet
A toilet base 11 is included, to start to provide in water to the toilet base 11 what is washed away, one is taken a water tank 12
With water pipeline 30, a vacuum being applied to during closestool flushing on bend channel 31 are washed away towards downstream direction to sewer
Source, a time-delay drawing air to close close opening and closing of the system 20 for controlling vacuum source.
The water tank 12 is divided into the first containment portion 22, the second water storage part by first partition 19 and second partition 16
23 and third containment portion 24,19 bottom of first partition is divided to reserve certain altitude and make third containment portion 24 and second
The bottom of containment portion 23 is connected to and the reserved height enables the water level in two water areas to synchronize decline and rising, described
The scheduled water level line in 16 bottom of second partition 26 has equipped with several through-holes 15 so that the second containment portion 23 and the first water storage
Part 22 is in the 26 times connections of scheduled water level line.It is set on the water tank 12 there are one tank lid 13, in the tank lid 13
It is equipped with a circle gasket 21 along the top for enclosing each face of third containment portion 24 on wall, the tank lid 13 is made in gravity
With the gasket 21 described in lower compression, the third containment portion 24 is formed into sealing area, to be provided during washing away
The vacuum source, the third containment portion 24 are structure wide at the top and narrow at the bottom so that the water in pond is washing away period energy
Enough to pour rapidly in closestool pond, guaranteed water level, which declines different height, can provide stable vacuum source.The third
One time-delay drawing air to close is installed in containment portion 24 and closes system 20.
As shown in figure 3, applicant gives a system with time-delay closing vacuum source function, the time-delay drawing air to close
It closes system 20 to be connected by 201 lower end of main body and water tank 12, the main body 201 has a hollow tube 2011, hollow tube 2011 and institute
It states on closestool bend channel 31 to be connected to, the main body 201 further includes the outer keg float 2012 of a bottom through-hole, and keg float 202 is set in one
It is placed in the outer keg float 2012, and the buoyancy of water can be relied on to float up and down in outer keg float, a delay check valve 203 is arranged
In in the bottom through-hole of the outer keg float, the delay check valve relies on the up and down motion of water, controls in the outer keg float 2012
The velocity of discharge of water, the main body further include having a pair of brackets 2013, and 204 one end of a connecting rod is socketed on the holder 2013 simultaneously
It can be rotated around the holder 2013, a gasket 205 is fixed on the connecting rod 204,204 other end of the connecting rod and described
Interior keg float 202 is hinged.
When washing away cycle beginning initial stage or wash away at one and not starting, the first containment portion 22, second in the water tank
Containment portion 23,24 water level of third containment portion reach scheduled water level line 26, at this point, delay check valve 203 relies on buoyancy
Effect fits in 2012 bottom of outer keg float, and water is full of in outer keg float 2012, and interior keg float 202 floats shape since buoyancy is in
State, interior keg float 202 push connecting rod 204 to be rotated around holder 2013, and vacuum passage is in the open state.When in third containment portion 24
Water level line 26 when declining, the water level line in outer keg float 2012 can't be followed immediately to be declined, and only water level line 26 drops to one
Fixed height, when the buoyancy provided at this time is not enough to support delay check valve 203, delay check valve 203 falls by its own gravity,
Delay check valve 203 is opened at this time, and the water in outer keg float 2012 slowly declines and final all discharges, while interior keg float 202 is slow
Slow loss of buoyance also begins to decline, since the decline of interior keg float 202 has driven connecting rod 204 to be rotated backward around holder 2013, and
Final to realize that gasket 205 and sealing surface 20111 are bonded, vacuum passage is closed.Applicant by experiments have shown that, vacuum source channels
Delay closing in 1-2 second is needed after starting to wash away will not be weakened with to ensure negative pressure of vacuum and content in closestool will not enter
In water tank.
The working method of the vacuum assist toilet trap for closing system with time-delay drawing air to close of the present invention is：Described first
There are one conventional inlet valves 14, the water of water supply line to inject the first water storage part by the inlet valve 14 for installation in containment portion 22
Divide 22, the second containment portion 23 is injected by the through-hole 15 that 16 bottom of second partition is arranged, then pass through described first
The reserved height in 19 bottom of partition board is injected into third containment portion 24, until the water surface reaches scheduled water level line 26.Described
There are one conventional draining valve assemblies 17 for installation in second containment portion 23, when draining valve assembly 17 is driven, water tank
The water in the second containment portion 23 and third containment portion 24 in 12 carries over the water outlet that the inner circumference in closestool pond 28 is embedded
Road, which is discharged rapidly, to be flowed into closestool pond 28 and forms certain scouring force.At this moment, the second containment portion 23 in water tank 12 and
Water level line 26 in three containment portions 24 starts to decline rapidly, generates one on the top of closed third containment portion 24 at this time
Vacuum source.In air duct 25 there are one being connect on bend channel 31, the air duct 25 and the third containment portion 24
The lower nozzle of hollow tube 2011 connects so that vacuum source leads to the bend by the hollow tube 2011 and air duct 25 again
Channel 31, to provide a negative pressure of vacuum during washing away.Since height of water level generates in the negative pressure of vacuum and closestool pond
Gravitational difference double action under generate better siphon effect, assist the content in extraction closestool.Simultaneously, when third is stored up
The water level line 26 of water section 24 drop to be not enough to support delay check valve 203 when, delay check valve 203 by gravity to
Lower movement, at this moment the water in outer keg float 2012 slowly decline, while as the water in outer keg float 2012 slowly declines, interior keg float
202 loss of buoyance also and then slowly decline, and such connecting rod 204 is also and then rotated backward around holder 2013, and finally sealed pad 205 pastes
Together in the sealing surface 20111 of hollow tube.The vacuum assist toilet trap that system is closed with time-delay drawing air to close of the present invention utilizes auxiliary
Vacuum source reduces the necessary water consumption in washing away, and obtains an effective better scouring effect so that closestool pond
In almost all of content be excluded.In the presence of having solid waste, about 3 liters of water need to only be used every time by washing away, this is
With the identical half for designing the still water required for the closestool of not vacuum aided.
Therefore, it is auxiliary not only to realize original vacuum for the vacuum assist toilet trap of the invention that system is closed with time-delay drawing air to close
Help the function of water closet or even better.Most important, the present invention closes system 20 using time-delay drawing air to close can be in closestool
Wash away the later stage close vacuum source channels reach prevent foul smell and pollutant enter water tank and prevented inhale cause trap seal
It is insufficient.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
In vain, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (5)
1. a kind of vacuum assist toilet trap closing system with time-delay drawing air to close, the water closet includes a toilet base,
One water tank what is washed away to start to provide in water to the toilet base, and a carrying water is towards downstream direction to sewer
Wash away pipeline, a vacuum source being applied to during closestool flushing on bend channel, a time-delay drawing air to close closes system company
It is connected on above-mentioned bend channel for controlling the opening and closing of vacuum source channel cycle, the water tank is divided into the first water storage part
Divide, the second containment portion, third containment portion, an inlet valve, second water storage part are connected in first containment portion
It is connected with a drain valve in point, a time-delay drawing air to close is connected in the third containment portion and closes system, first storage
Water section and the connection of the second containment portion bottom, second containment portion is connected to third containment portion bottom, described
Third containment portion upper end closed, it is characterised in that：The time-delay drawing air to close closes system by a main body, a connecting rod, keg float in one,
One delay check valve, gasket composition, the time-delay drawing air to close, which closes system body, a hollow tube, hollow tube and the closestool
Pedestal bend channel is connected to, and the main body further includes the outer keg float of a bottom through-hole, and the interior keg float is set to the outer keg float
Interior, the delay check valve is set in the bottom through-hole of the outer keg float, and the main body further includes having a pair of brackets, the company
Rod set is connected on the holder, and the gasket is fixed on the connecting rod, and the connecting rod and the interior keg float are hinged.
2. a kind of vacuum assist toilet trap closing system with time-delay drawing air to close according to claim 1, it is characterised in that：
The connecting rod can be moved around the holder pivots, the interior keg float in outer keg float, and the interior keg float can be in connecting rod
Interior opposite sliding, the interior keg float and connecting rod are linked system, drive connecting rod around holder pivots when interior keg float rises or falls.
3. a kind of vacuum assist toilet trap closing system with time-delay drawing air to close according to claim 1, it is characterised in that：
There is a sealing surface in the hollow tube upper end of the main body, drives connecting rod around holder pivots, the gasket fitting when interior keg float declines
The sealing surface realizes sealing.
4. a kind of vacuum assist toilet trap closing system with time-delay drawing air to close according to claim 1, it is characterised in that：
The first containment portion, the second containment portion, third containment portion and the outer keg float of the water tank have an identical highest water inlet
The water level of water level, the second containment portion and third containment portion is in sustained height always.
5. a kind of vacuum assist toilet trap closing system with time-delay drawing air to close according to claim 4, it is characterised in that：
The second containment portion and third containment portion water level rapid decrease of the water tank when starting draining, and the water level in outer keg float
Decrease speed is slower than the water level decreasing speed of the second containment portion and third containment portion, to realize time-delay closing function.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144508.9A CN103882925B (en) | 2014-04-11 | 2014-04-11 | A kind of vacuum assist toilet trap closing system with time-delay drawing air to close |
| CN201810816666.2A CN108842878B (en) | 2014-04-11 | 2014-04-11 | Vacuum-assisted flush toilet |
| CN201810816678.5A CN108842879B (en) | 2014-04-11 | 2014-04-11 | Water closet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144508.9A CN103882925B (en) | 2014-04-11 | 2014-04-11 | A kind of vacuum assist toilet trap closing system with time-delay drawing air to close |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816666.2A Division CN108842878B (en) | 2014-04-11 | 2014-04-11 | Vacuum-assisted flush toilet |
| CN201810816678.5A Division CN108842879B (en) | 2014-04-11 | 2014-04-11 | Water closet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103882925A CN103882925A (en) | 2014-06-25 |
| CN103882925B true CN103882925B (en) | 2018-09-28 |
Family
ID=50952026
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816666.2A Active CN108842878B (en) | 2014-04-11 | 2014-04-11 | Vacuum-assisted flush toilet |
| CN201410144508.9A Expired - Fee Related CN103882925B (en) | 2014-04-11 | 2014-04-11 | A kind of vacuum assist toilet trap closing system with time-delay drawing air to close |
| CN201810816678.5A Active CN108842879B (en) | 2014-04-11 | 2014-04-11 | Water closet |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816666.2A Active CN108842878B (en) | 2014-04-11 | 2014-04-11 | Vacuum-assisted flush toilet |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810816678.5A Active CN108842879B (en) | 2014-04-11 | 2014-04-11 | Water closet |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN108842878B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436864B (en) * | 2016-07-20 | 2019-05-03 | 张如胜 | A kind of siphonage-toilet and pressure-generating device |
| CN110206111B (en) * | 2019-06-25 | 2021-02-26 | 陈益民 | Life sewage discharging device |
| CN110409575B (en) * | 2019-07-03 | 2023-09-08 | 厦门优胜卫厨科技有限公司 | Toilet flushing mechanism and flushing control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5142712A (en) * | 1990-11-26 | 1992-09-01 | Fluidmaster, Inc. | Vacuum assisted toilet |
| WO1996010118A1 (en) * | 1994-09-28 | 1996-04-04 | Medway Engineering Limited | Vacuum assisted toilet flushing system |
| CN102296687A (en) * | 2011-07-21 | 2011-12-28 | 林文斌 | Vacuum assisted flush toilet |
| CN202202388U (en) * | 2011-06-16 | 2012-04-25 | 林文斌 | Water-tank-sealed vacuum auxiliary water closet |
| CN102979148A (en) * | 2012-09-22 | 2013-03-20 | 虞君道 | Draining, air-exhausting and water-saving system of closestool |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0436357B1 (en) * | 1990-01-02 | 1994-09-21 | Metra Oy AB | Vacuum sewer arrangement |
| CN2504329Y (en) * | 2001-03-20 | 2002-08-07 | 刘小波 | Negative pressure feedback water saving toilet |
| JP2004100182A (en) * | 2002-09-06 | 2004-04-02 | Toto Ltd | Flush water supply device for flush toilet |
| CN101424095B (en) * | 2008-05-16 | 2010-11-17 | 王可威 | Toilet without cistern |
| CN201305904Y (en) * | 2008-10-23 | 2009-09-09 | 张健春 | Negative pressure flush cleaning type toilet device |
| CN201933588U (en) * | 2011-01-07 | 2011-08-17 | 厦门瑞尔特卫浴工业有限公司 | Getter device for enhancing negative pressure of toilet siphon |
| CN202595880U (en) * | 2012-02-24 | 2012-12-12 | 科斯特(厦门)节水设备有限公司 | Negative-pressure water-sealing deodorization device for toilet bowl |
| CN202482957U (en) * | 2012-03-06 | 2012-10-10 | 林文斌 | Check valve capable of controlling water inlet valve to output water in delayed mode |
| CN102828549A (en) * | 2012-07-31 | 2012-12-19 | 虞君道 | Suction toilet stool |
-
2014
- 2014-04-11 CN CN201810816666.2A patent/CN108842878B/en active Active
- 2014-04-11 CN CN201410144508.9A patent/CN103882925B/en not_active Expired - Fee Related
- 2014-04-11 CN CN201810816678.5A patent/CN108842879B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5142712A (en) * | 1990-11-26 | 1992-09-01 | Fluidmaster, Inc. | Vacuum assisted toilet |
| WO1996010118A1 (en) * | 1994-09-28 | 1996-04-04 | Medway Engineering Limited | Vacuum assisted toilet flushing system |
| CN202202388U (en) * | 2011-06-16 | 2012-04-25 | 林文斌 | Water-tank-sealed vacuum auxiliary water closet |
| CN102296687A (en) * | 2011-07-21 | 2011-12-28 | 林文斌 | Vacuum assisted flush toilet |
| CN102979148A (en) * | 2012-09-22 | 2013-03-20 | 虞君道 | Draining, air-exhausting and water-saving system of closestool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103882925A (en) | 2014-06-25 |
| CN108842878A (en) | 2018-11-20 |
| CN108842879A (en) | 2018-11-20 |
| CN108842879B (en) | 2020-07-24 |
| CN108842878B (en) | 2020-04-21 |
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