CN109930669A - A kind of closestool - Google Patents
A kind of closestool Download PDFInfo
- Publication number
- CN109930669A CN109930669A CN201910077146.9A CN201910077146A CN109930669A CN 109930669 A CN109930669 A CN 109930669A CN 201910077146 A CN201910077146 A CN 201910077146A CN 109930669 A CN109930669 A CN 109930669A
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- China
- Prior art keywords
- valve
- closestool
- downcomer
- conduit
- motor
- 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.)
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- 210000002700 urine Anatomy 0.000 claims abstract description 36
- 239000002086 nanomaterial Substances 0.000 claims abstract description 10
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 235000014443 Pyrus communis Nutrition 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 35
- 230000007547 defect Effects 0.000 abstract description 16
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract 1
- 238000003860 storage Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 2
- 230000013872 defecation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Sanitary Device For Flush Toilet (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
A kind of closestool, eliminate four defects of existing closestool, (1) excrement urine is not stored, (2) emitting offensive odor does not pollute environment, (3) do not have to a large amount of water to be rinsed, (4) do not have to water and form water seal, to form a kind of not emitting offensive odor, the non-flushing new type closet washed.The main structure body of this closestool is upper downcomer, using the gravity of excrement urine, allows excrement urine vertically to fall, is guided by conduit, be directly entered sewer.Between upper conduit and downcomer, a ball valve or board-like valve are installed.When closestool is idle, valve is closed.When closestool work, upper conduit is connected to by valve opening with downcomer.Upper and lower pipe inner wall and valve through holes inner wall are not viscous nano materials, do not allow excrement urine sticky.Upper catheter tip, there is an annular air jet pipe, and the fumarole for having a circle downward sprays compressed air into conduit.New type closet of the invention does not have to water, not emitting offensive odor.
Description
Technical field
The present invention relates to articles for daily use technical fields, and in particular to a kind of closestool.
Technical background
Existing water closet, there are three major functions.Storage excrement urine, bath cleaning, water seal prevent gas blowby.It is each
The harmful effect of a function all associations, constitutes four big defects of closestool, that is, four undesirable states.
Storage generates first defect: the pelvic cavity of closestool as a container, excrement that storage is discharged by human body, urine and
Smelly wind.The illeffects of generation: image is unbecoming.It is first defect；
Storage generates second defect: excrement, urine and the smelly wind of storage, and foul smell is overflowed from closestool, pollutes environment.It is
Second defect of closestool.
Bath cleaning generates third defect: will be stored in closestool with considerable water by siphon blowing pipe road
The dirts such as excrement, pour sewer.The illeffects of generation is to consume a large amount of water.It is the third defect of closestool.It is right
It is a heavy burden in the city of water resources shortage.
Water seal generates the 4th defect.After dirt is poured sewer, in the upper end of siphon blowing pipe, one is formed with water
Sewer is isolated with the pelvic cavity of closestool, is sealed, prevents the foul smell of sewer by a water seal, into the pelvic cavity of closestool, after
And enter the room, pollute environment.The illeffects of generation, is sealed with water, and wastes water.Water seal is the 4th and lacks
It falls into.
Existing water closet, there are the illeffects of this four aspect, that is, there are four defects.Especially water is provided
A large amount of consumption in source are a serious defects.This four defects should be eliminated, foul smell is not spilt over, do not consume water, are generated new
The new type closet of a generation.
Summary of the invention
The present invention eliminates four defects of existing water closet by following technical measures.Present invention employs green woods
Material --- nano material, and the resource inside and outside system is rationally utilized --- gravity resource and air resource are acquirements of the present invention
Successful important guarantee.
First measure: closestool uses conduit forms, and excrement, urine are directly discharged into sewer.
The present invention uses first measure, eliminates first defect (storage excrement, urine), is that closestool is made into conduit
Excrement, urine are directly imported sewer by conduit by excrement, the gravity of urine by form.It is presently believed that existing horse
The store function of bucket is extra.After excrement, urine etc. should not being stored, then it is discharged into sewer, it should directly by excrement
Just, urine is discharged into sewer.Then, the pelvic cavity of closestool is extra, it should be cropped.Closestool is used without very big pelvic cavity
One replaces the conduit that excrement, urine are introduced directly into sewer.Excrement, urine are directly discharged into sewer, eliminate excrement,
The unnecessary storage of urine.With the form of conduit, the structure of closestool is changed completely, this is great to toilet configurations
It breaks through.
Here the resource in system is rationally utilized.The gravity that excrement, urine itself is utilized voluntarily is fallen by conduit
Enter sewer, rather than additional water resource is utilized to rinse, waste water resource.
Second measure: pipe inner wall uses nano material, prevents excrement, urine adhesion on pipe inner wall.
The excrement that falls in order to prevent, urine are pasted on the inner wall of conduit and valve, and the inner wall of conduit and valve uses
Nano material.This is second measure, is the dry essential condition of closestool using nano material.
Third measure: catheter tip has a ring jet pipe, the fumarole for having a circle downward, the jet pressure into conduit
Contracting air, prevents foul smell from overflowing.
Excrement, urine, the smelly wind in conduit, and the foul smell altered up from sewer are fallen into order to prevent, from conduit
Top is overflowed, and in catheter tip, there is a ring jet pipe, the fumarole that air jet pipe has a circle downward, the jet pressure into conduit
Contracting air.This is the air resource being rationally utilized in environment, solves the problems, such as to overflow foul smell in closestool work.In addition to preventing
It is overflowed outside foul smell from conduit, there are also other two effects.First is that power-assisted pushes excrement, urine to enter sewer downwards, second is that
Further cleaning conduit inner wall.Jet from the top down, this is the third measure used, eliminates second defect and (overflows smelly
Gas pollutes environment).
4th measure: replacing water seal with machinery valve, prevents when closestool does not work, the foul smell of sewer is altered into room
It is interior, pollute air.
There are three component parts altogether for water closet: water tank, pelvic cavity, blowdown siphon bend.Closestool of the invention, does not store
Excrement, urine, it is non-flushing to wash discharge dirt, so, this three parts without, be all cut.But siphon is arranged
The upper end of dirty bend pipe forms water seal with water, is to be isolated to sewer with closestool pelvic cavity, sealed, prevents smelly in sewer
Gas is altered upwards into closestool pelvic cavity, is then altered into interior, is polluted air.The function of this isolation, sealing, closestool of the invention are same
Sample needs.It is, to prevent the foul smell of sewer when closestool is idle, by conduit, alter into indoor pollution ring
Border.What water seal without being sealed with? simple and reliable method is to use machinery valve.For this purpose, to divide the conduit into two up and down
Point --- upper conduit and downcomer.Downcomer is inserted into the vertical tube of ground, is the part with water passage.Under in order to prevent
The foul smell of water channel is altered into upper conduit, between upper conduit and downcomer, is installed machinery valve, is isolated.When closestool does not work
When, valve is closed, upper downcomer isolation.When closestool work, valve opening, upper downcomer is communicated.Using machinery valve, generation
For water seal, this is the 4th measure, prevents the foul smell of sewer from altering into interior.
It can be seen that exactly using four measures, four defects of existing water closet are eliminated, are formed of the invention new
Formula closestool can be referred to as electronic air blast nanometer conduit closestool.It is one kind directly by excrement, urine, by gravity, by leading
Pipe is discharged into the closestool of sewer；It is not viscous nano material due to pipe inner wall and valve through holes inner wall, is non-flushing wash
Closestool；Since catheter tip is to lower end jet pressure contracting air, this is the closestool for not overflowing foul smell.Due to using machinery
For valve instead of water seal, this is a kind of electronic product.
It needs that Figure of description is combined to be compared detailed description to the overall structure of Novel closestool further below.
The main structure of closestool is conduit.The gravity of excrement, urine itself is utilized, by conduit, excrement urine is voluntarily
Fall into sewer.Due to on valve isolation sewer come foul smell, conduit is divided into conduit (4) and downcomer (12) two
Part, in order to install valve between upper downcomer.Upper conduit is fastened on bearing support (16).Upper conduit and downcomer it
Between, a valve (11) is installed, valve can use ball valve, or with board-like valve.Upper conduit upper surface will have sufficiently large sky
Between area, receive excrement and urine.Upper conduit upper end, has one section of section to resemble a pear in shape, and protrusion is for accommodating urine urine
Liquid.Connecting valve is wanted in upper conduit lower end surface, and area wants smaller, so, upper conduit is up big and down small, is a conical pipe.Up and down
Pipe inner wall and valve through holes inner wall are nano materials, and the dirts such as excrement, urine are not easy to adhere and vertical drop, this is nothing
The essential condition that need to be rinsed with water.One casing (15) is arranged at the bottom of closestool, is mounted on the bottom plate of bearing support (16), covers
On ground vertical tube (14), positioned to closestool.Downcomer (12) end portion is inserted within ground vertical tube (14).Downcomer
Between pipe perpendicular to the ground, there is a sealing ring (13).There is a toilet lid (2) at the top of closestool.There are one shells for closestool
(7), it connect with upper supravasal support plate (6).Bottom plate, housing bottom and the ground grading of bearing support securely connect.
Below by 3 electro-mechanical parts for introducing closestool, the structure of closestool is further appreciated that.
1. compressed air part.In upper catheter tip, there is a ring jet pipe (3), the fumarole for having a circle downward is right
Compressed air is sprayed in conduit.There are 3 effects: (1) preventing foul smell overflow duct, (2) power-assisted pushes excrement, urine downwards
Into sewer, (3) cleaning conduit inner wall.Due to needing applied compression air, air blower (1) is installed inside closestool, is passed through
Pipeline provides low-pressure compressed air to air jet pipe.
2. the motor operation mechanism of valve.
(1) ball valve is used.Ball valve is realized by motor positive and inverse and is switched.Since ball valve switch needs motor to rotate forward reversion, institute
To use direct current generator.The axis of ball valve is by shaft coupling (10) together with the axis connection of motor (8).Motor is mounted on electricity
On machine support plate (9).A rotation collision block is had on motor shaft, electrical power turns over an angle, and ball valve is opened, and collision block is hit
A upper travel switch, motor power-off.It when ball valve to be closed, is reversely powered to motor, motor reversal, ball valve is closed, collision block
Reversely knock another travel switch, motor power-off.In ball valve motor just in case occurring failing in emergency circumstances, in ball valve
There is a spare crank at the back side, by the square hole of crank insertion ball valve, shakes 90 degree, ball valve is opened, and collision block and limit are opened
It closes and still plays positioning barrier effect.Counter again after an action of the bowels to shake 90 degree, ball valve is closed.
(2) board-like valve is used.Board-like valve is exactly one piece of rectangular slab, the half of plate be it is solid, when this half is upper
When between downcomer, upper downcomer is isolated, is equivalent to valve closing.The other half of plate is a hole, when this half is upper and lower
When between conduit, upper downcomer is connected to, allows excrement urine to pass through, is equivalent to valve opening.In order to realize the pass of board-like valve
It closes and is acted on unlatching, motor gear rack gear or solenidal electromagnet linear reciprocating mechanism are installed in the side of board-like valve,
Motor rotates left and right, and in the space between upper downcomer, the board-like valve of reciprocating sliding realizes the Push And Release of valve, in order to disappear
Except the gap between board-like valve and upper downcomer, downcomer under spring force, from bottom to top applies board-like valve
Pressure eliminates gap, realizes sealing.In motor just in case occurring failing in emergency circumstances, in the longitudinal direction of board-like valve, have
A piece spare push-pull rod can pull board-like valve in the rear position of closestool, open or close valve.
3. rotating mechanism is automatically closed in toilet lid.
Toilet lid can be similar with the positive and negative rotation of ball valve with automatic turning, and motor is housed in the shaft of toilet lid, on motor shaft
One rotation collision block, electrical power rotation are installed, toilet lid starts certain angle, and collision block hits travel switch, and motor powers off,
Motor reverse phase is powered, and reversion, toilet lid covers, and collision block hits another travel switch, motor power-off.
The working procedure of new type closet is as follows: pressure start button, blower motor, valve driving machine, toilet lid motor can
To obtain electric, fumarole jet simultaneously, valve is automatically turned on by closed position to open position, toilet lid (to prevent valve opening
Before, dirt is fallen into conduit, and when closestool does not work, toilet lid covers always).Air blower continues working, valve driving machine
Power loss, toilet lid motor power loss.At this point, people can take closestool defecation.Defecation cleans out, and stands up, and has taken waist-belt
After, conclusion button, air blower power loss are depressed, air blower stops working.Meanwhile valve driving machine is electricly reversed, reversion, valve
It closes, valve driving machine power loss.Toilet lid motor is electricly reversed, and reversion, toilet lid is closed, toilet lid motor power loss.All work
Terminate.The switch of three motors provides power supply, and the connection of whole routes by one piece of circuit board (5).
For the area often having a power failure, it to be attached to a standby battery.
As water closet, novel closestool is also a kind of toilet seat.No matter men and women requires to sit whether great or small just
It is used above.Also as any vessel, equipment, closestool is equally also required to regular inspection, cleaning, maintenance, dimension
It repairs.
New type closet of the invention does not have to water.But in the same toilet, other equipment, as washbasin, washing machine,
Bathing shower device etc. is all with water.The water flowed down, is connected to by pipeline, flows to the lower end of closestool ground vertical pipe, this is right
In further clearing up the dirts such as the excrement fallen from closestool, it is helpful.
Figure of description explanation
Figure of description Fig. 1 is toilet structure schematic diagram.
The title numbered in Figure of description is as follows:
1. air blower, 2. toilet lid, 3. ring jet pipes, conduit on 4., 5. circuit boards, 6. shell support plates, 7. shells,
8. motor, 9. motor bearing plates, 10. shaft couplings, 11. valves, 12. downcomer, 13. sealing ring, 14. ground vertical tubes, 15. sets
Pipe, 16. bearing supports.
Specific embodiment
Closestool of the invention is a kind of fabricated electronic product.All parts can pass through existing production technology
It manufactures, then is assembled.
Claims (10)
1. a kind of closestool, by upper conduit, bearing support, upper catheter support plate, downcomer, casing, machinery valve, ring jet pipe,
Air blower, toilet lid, shell and various connectors composition, characterized in that the main structure of closestool is conduit, is divided into and leading
Pipe and downcomer, downcomer are protruded into the vertical tube of ground, are communicated with sewer, and upper conduit and downcomer will directly be fallen by gravity
Under excrement urine, lead into sewer, do not store excrement urine in closestool, between upper conduit and downcomer, install it is organic
Tool valve, when closestool does not work, valve is closed, and upper conduit is isolated with downcomer, prevents sewer odor from altering into upper conduit,
Air is polluted, in closestool work, valve opening, upper downcomer connection allows excrement urine to pass through, falls into sewer, upper conduit
It is Inadhesion nano material with the inner wall of downcomer, prevents excrement urine sticky, upper catheter tip has a ring jet pipe, to
Jet in conduit is sent out foul smell during preventing closestool from working by conduit.
2. closestool according to claim 1, characterized in that upper conduit is a conical pipe, and upper conduit upper surface is equipped with
One piece of support plate, upper conduit upper end, has one section of section to resemble a pear in shape, and protrusion is for accommodating urine urine, upper conduit fastening
On bearing support, the lower end surface of upper conduit is connect with the upper surface of machinery valve.
3. closestool according to claim 1, characterized in that downcomer upper surface and the lower end surface of machinery valve connect, under
In lower end a part insertion ground vertical tube of conduit, there is sealing ring sealing between downcomer pipe perpendicular to the ground.
4. closestool according to claim 1, characterized in that the machinery valve between upper conduit and downcomer can use ball
Valve, by the open and close of motor manipulation ball valve, the axis of ball valve is connected by shaft coupling with the axis of motor, and one is had on motor shaft
A rotation collision block, electrical power turn over 90 degree, and ball valve is opened, and collision block knocks a travel switch, motor power-off, when closing
When ball valve, motor is reversely powered, and 90 degree of motor reversal, ball valve is closed, and collision block reversely knocks another travel switch, and motor is disconnected
Electricity, at the back side of ball valve, has a spare crank, crank is pushed away in ball valve motor just in case occurring failing in emergency circumstances
Enter in the square hole of ball valve, shook 90 degree, ball valve is opened, and collision block and limit switch still play positioning barrier effect, and ball valve leads to
Hole inner wall uses nano material.
5. closestool according to claim 1, characterized in that the machinery valve between upper conduit and downcomer can use plate
Formula valve, board-like valve are exactly one piece of rectangular slab, the half of plate be it is solid, will be upper when this half is between upper downcomer
Downcomer isolation is equivalent to valve closing, and the other half of plate is that a hole will be upper and lower when this half is between upper downcomer
Conduit connection, allows excrement urine to pass through, is equivalent to valve opening, in order to realize that closing and the unlatching of board-like valve act on, in plate
The side of formula valve is equipped with motor gear rack gear or solenidal electromagnet linear reciprocating mechanism, the sky between upper downcomer
In, reciprocating sliding board-like valve in left and right realizes the Push And Release of valve, between eliminating between board-like valve and upper downcomer
Gap, downcomer under spring force, apply pressure to board-like valve from bottom to top, eliminate gap, sealing are realized, in motor
Just in case occurring failing in emergency circumstances, in the longitudinal direction of board-like valve, a spare push-pull rod is had, can be used in the rear position of closestool
Hand push drawplate type valve, opens or closes valve, and the inner wall of board-like valve through holes uses nano material.
6. closestool according to claim 1, characterized in that ring jet Guan Youyi encloses downward fumarole, into conduit
Compressed air is sprayed, foul smell overflow duct is prevented, pollutes room air, ring jet pipe provides low pressure by pipeline by air blower
Compressed air.
7. closestool according to claim 1, characterized in that toilet lid can be equipped in the shaft of toilet lid with automatic turning
Motor is equipped with a rotation collision block on motor shaft, and when motor rotates forward, toilet lid starts certain angle, and collision block hits stroke and opens
It closes, motor power-off, when motor reversal, toilet lid is covered, and collision block hits another travel switch, motor power-off.
8. closestool according to claim 1, characterized in that have a shell, upper shell and upper supravasal support plate
Connection, shell lower end is connect with ground grading.
9. closestool according to claim 1, characterized in that there is a bearing support, supports the components of closestool whole, with
And the weight of human body, the bottom plate and ground grading of bearing support are securely connected with bolt.
10. closestool according to claim 1, characterized in that have one piece of circuit board, provide power supply, and whole routes connect
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077146.9A CN109930669B (en) | 2019-01-19 | 2019-01-19 | Toilet bowl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077146.9A CN109930669B (en) | 2019-01-19 | 2019-01-19 | Toilet bowl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109930669A true CN109930669A (en) | 2019-06-25 |
| CN109930669B CN109930669B (en) | 2024-05-14 |
Family
ID=66985170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910077146.9A Active CN109930669B (en) | 2019-01-19 | 2019-01-19 | Toilet bowl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109930669B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761379A (en) * | 2019-11-29 | 2020-02-07 | 宁波酷客卫浴科技有限公司 | Split type closestool |
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| CN101036564A (en) * | 2006-03-13 | 2007-09-19 | 史美华 | Water-free flush peeing device |
| CN201176618Y (en) * | 2008-01-24 | 2009-01-07 | 李京阳 | Pneumatic water saving toilet |
| US20110004990A1 (en) * | 2005-04-05 | 2011-01-13 | Jair Scherrer Leitao | Toilet flushing system using compressed air |
| CN202117152U (en) * | 2011-06-04 | 2012-01-18 | 林华山 | Direct-falling type water-saving toilet bowl |
| CN202519775U (en) * | 2012-02-13 | 2012-11-07 | 王文华 | Water-saving toilet bowl |
| CN203462551U (en) * | 2013-09-20 | 2014-03-05 | 陆伟 | Non-flushing toilet |
| CN107794993A (en) * | 2016-08-31 | 2018-03-13 | 昆明惠云夜光工程有限责任公司 | New style toilet |
| CN210507680U (en) * | 2019-01-19 | 2020-05-12 | 王传友 | Toilet bowl |
-
2019
- 2019-01-19 CN CN201910077146.9A patent/CN109930669B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110004990A1 (en) * | 2005-04-05 | 2011-01-13 | Jair Scherrer Leitao | Toilet flushing system using compressed air |
| CN101036564A (en) * | 2006-03-13 | 2007-09-19 | 史美华 | Water-free flush peeing device |
| CN201176618Y (en) * | 2008-01-24 | 2009-01-07 | 李京阳 | Pneumatic water saving toilet |
| CN202117152U (en) * | 2011-06-04 | 2012-01-18 | 林华山 | Direct-falling type water-saving toilet bowl |
| CN202519775U (en) * | 2012-02-13 | 2012-11-07 | 王文华 | Water-saving toilet bowl |
| CN203462551U (en) * | 2013-09-20 | 2014-03-05 | 陆伟 | Non-flushing toilet |
| CN107794993A (en) * | 2016-08-31 | 2018-03-13 | 昆明惠云夜光工程有限责任公司 | New style toilet |
| CN210507680U (en) * | 2019-01-19 | 2020-05-12 | 王传友 | Toilet bowl |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761379A (en) * | 2019-11-29 | 2020-02-07 | 宁波酷客卫浴科技有限公司 | Split type closestool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109930669B (en) | 2024-05-14 |
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