CN102296687B - A kind of vacuum assist toilet trap - Google Patents
A kind of vacuum assist toilet trap Download PDFInfo
- Publication number
- CN102296687B CN102296687B CN201110205260.9A CN201110205260A CN102296687B CN 102296687 B CN102296687 B CN 102296687B CN 201110205260 A CN201110205260 A CN 201110205260A CN 102296687 B CN102296687 B CN 102296687B
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- toilet
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- vacuum
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Abstract
The present invention relates to flush toilet, particularly a kind of vacuum assist toilet trap.Vacuum assist toilet trap of the present invention, comprise a toilet base, water tank is in order to provide water to arrive in described toilet base starting of washing away, and one is carried water and washes away pipeline to sewer in direction towards downstream, and one is applied to the vacuum source washed away on pipeline during closestool flushing.Improvements are: this flush pipe road has a upper bend and lower straight way and the linking passage between upper bend and lower straight way, be connected channel connection in described vacuum source, the outlet of described lower straight way connects one and widens pipe, widen in pipe the check valve assembly installing a band pretightning force, what the check valve assembly of this band pretightning force was used for not washing away period or vacuum source applying effect at toilet washes away mid-term, the outlet of lower straight way is closed, and unidirectional unlatching under the draining momentum effect being washed pipeline latter stage at closestool flushing.The present invention is installed in washroom with routine use.
Description
Technical field
The present invention relates to flush toilet, particularly a kind of vacuum assist toilet trap.
Background technology
The vacuum of prior art assists flush toilet, during vacuum is applied in washing away of toilet, thus uses less water to come to wash away thoroughly.As the vacuum assist toilet trap that patent publication No. is CN1111704, it adopts a vacuum to be applied to up and down between bend of toilet outlet when washing away, lower lane change is made into can ensure that an air duct (64) is in Yi Chishui (52) top of lower bend more reliably, it can wash away at contiguous one beginning time close rapidly, and its keeps opening wide when not washing away.Lower bend is with a lower wall (51), it maintains a Chi Shui (52), interval a Chi Ding (62) is remained on predetermined altitude (A) washing away, it has one to be positioned at upper wall (60) on top, pond to form an air duct.Upper wall forms the blow vent (100) of a narrow and high air duct.
This vacuum assist toilet trap can be good at realizing vacuum source and assists the contents extracted out in toilet, but for ensureing that toilet is after washing away beginning, lower bend must close air duct soon, thus make the vacuum be applied on bend path can assist to extract the contents in toilet out, and vacuum can not be made to be consumed among sewer or drainage, the mode of washing away the combination of upper and lower 2 bends of pipeline employing of this vacuum assist toilet trap.Lower lane change is made into can ensure that an air duct (64) is in Yi Chishui (52) top of lower bend more reliably, it can wash away at contiguous one beginning time close rapidly, and its keeps opening wide when not washing away.And the lower wall surface of its lower bend is formed to preserve a Chi Shui; its downstream has a predetermined height; at the intervals washed away, Chi Ding is remained on a predetermined altitude; described upper wall surface forms an air flue and is positioned on top, described pond; described upper wall surface has an extreme lower position; the height of the described air flue on top, pond described there, is in a ratio of minimum with other position perpendicular to described center line; In cross sectional view perpendicular with center line the extreme lower position of described air flue, described air flue on described top, pond has a vertical height, this is highly greater than 75% of its average level width, and described average level width is less than the half of the maximum cross section width of described lower bend.
To sum up, the weak point that this vacuum assist toilet trap exists is:
(1) structure of toilet camber is designed to be comparatively complicated, and toilet seat outlet, except common upper bend, comprise again a lower bend, and the structure of lower bend is comparatively complicated, is unfavorable for toilet processing and manufacturing;
(2) because bend under toilet outlet has certain camber, in the process of the bend under process of the contents in toilet, easily residue in lower bend tube wall, cause the situation existing and cannot drain completely.
Summary of the invention
The object of the invention is on the basis of existing technology, the vacuum assist toilet trap of pipe design is washed away by proposing a kind of improvement, by arranging one way valve sealing and form the mode of vacuum passage and realize washing away pipe water outlet, not only ensure that the less flushing water of original use can obtain better by effect that contents in toilet are removed, and the situation that sewage retains in bend can be decreased, and can play and prevent dirt from refluxing, the effect of isolated stink.In addition, toilet structure of the present invention is comparatively simple, is easy to manufacture.
Object of the present invention reaches by following technical solution:
A kind of vacuum assist toilet trap, comprise a toilet base, water tank is in order to provide water to arrive in described toilet base starting of washing away, and one is carried water and washes away pipeline to sewer in direction towards downstream, and one is applied to the vacuum source washed away on pipeline during closestool flushing.Improvements are: this flush pipe road has a upper bend and lower straight way and the linking passage between upper bend and lower straight way, be connected channel connection in described vacuum source, the outlet of described lower straight way connects one and widens pipe, widen in pipe the check valve assembly installing a band pretightning force, what the check valve assembly of this band pretightning force was used for not washing away period or vacuum source applying effect at toilet washes away mid-term, the outlet of lower straight way is closed, and unidirectional unlatching under the draining momentum effect being washed pipeline latter stage at closestool flushing.
Further, the outlet of described lower straight way is angular cut, and the outlet of lower straight way and the formation of widening pipe upper port plane of cutting sth. askew is with the tube wall axis widening pipe of the check valve assembly of pretightning force to be the angle of acute angle with being provided with.Like this, can ensure that the outlet of being with the check valve assembly of pretightning force can rotate the less lower straight way of angle realization is opened completely.
Further, the described cross section ovalize widening pipe.Widen the cross section ovalize of pipe or the orifice configuration of similar ellipse, in order to ensure to provide enough spaces to carry out being with the installation of the check valve assembly of pretightning force location and ensureing that one way valve is opened and draining completely.
Further, described pipe of widening is provided with the check valve assembly installation and positioning structure being with pretightning force.The check valve assembly of band pretightning force can be installed reliably and located by the location structure widening pipe.
Further, described installation and positioning structure realizes in the following way: be respectively equipped with positioning convex rib and locating groove in the plane of cut sth. askew plane and the lower port of widening pipe upper port, and the upper and lower side for the check valve assembly by band pretightning force carries out installation location.
Further, the check valve assembly of described band pretightning force is made up of a sealing ring, a bracing frame and a holder,
Described sealing ring is arranged on bracing frame, for implementing the unlatching of pipeline and closed action;
Described bracing frame is provided with a pre-tightening mechanism, and this pre-tightening mechanism is connected to holder;
Described holder widens pipe for being fixed on.
Further, have a protruding thin-walled in the middle part of described sealing ring, thin-walled is made up of the easily deformable material of softness, and form a confined space after the thin-walled of the projection of sealing circle is connected with support frame as described above, described confined space provides thin-walled to support.Like this, the check valve assembly of pretightning force is with not seal by means of only the section of the outer ring of sealing ring and the angular cut of lower straight way.Meanwhile, be adjacent to the tube wall of lower straight way after being also out of shape under negative pressure of vacuum by thin-walled and carry out better secondary seal.
Further, described holder is elastic clamp seat, is located at widens pipe and install fixing by elastic card.Like this, if holder is snapped in widen pipe location structure in can Fast Installation complete, fitting operation is easy and reliable.As, after the upper end of holder being snapped into the positioning convex rib of the plane of cutting sth. askew of widening pipe upper port, lower end snaps in the locating groove of the plane of widening infratubal port.
Further, described water tank is divided into the first water district, the second water district and the 3rd water district by the first dividing plate and second partition, the described top in the first water district and the tank lid of water tank upper end seal, for providing a vacuum source during washing away, in the first described water district, an air hose is installed, this air hose is connected with the linking channel seal on base, a reserved height H bottom first dividing plate, the first described water district is communicated with bottom the second water district, 3rd water district is also communicated with under predetermined waterline with the second water district
On described tank lid inwall along the first water district enclose each side top be provided with a circle sealing mat, described tank lid compresses described sealing mat under gravity, formed with the first described water district and be sealed and matched, to provide vacuum source during washing away.
Further, described second partition has a through hole at predetermined waterline.Or the bottom of described second partition is provided with a through hole.By through hole, the water in the 3rd water district is inputed to the second water district.
Further, the first described water district is structure wide at the top and narrow at the bottom.Water in pond can be poured rapidly in toilet pond during washing away, increase its impact force, and metastable vacuum power can be provided when guaranteeing that draining valve assembly uses different gear to realize draining.
Further, described vacuum assist toilet trap also comprises drive unit and draining valve assembly, described water tank is designed to first, second, third separate water district, make described drive unit be push button or wire controlled or Wrench-type, described draining valve assembly is built-in bleed off pipe or external bleed off pipe.
The pipeline that washes away of the elbow structure up and down of existing vacuum assist toilet trap mainly improves by vacuum assist toilet trap of the present invention, lower bend is improved to lower straight way, the mid-term of washing away of simultaneously not washing away period or vacuum source applying effect by the check valve assembly of band pretightning force at toilet carries out hermetically enclosed to the outlet of lower straight way, and unidirectional unlatching under the draining momentum effect being washed pipeline latter stage at closestool flushing.Not only structure after improvement is more simple, is easy to manufacture, and meanwhile, decreases the situation that sewage retains in bend, can play and prevent dirt from refluxing, the effect of isolated stink.
Accompanying drawing explanation
Fig. 1 is partial sectional view of the present invention;
Fig. 2 is fragmentary sectional elevation view of the present invention;
Fig. 3 is another partial sectional view of the present invention (in figure, a toilet base part is cut);
Fig. 4 is side partial sectional view of the present invention;
Fig. 5 is the broken section scale amplifying figure that flush toilet of the present invention washes away pipe outlet;
Fig. 6 is the design of part explosive view of check valve assembly of the present invention.
Detailed description of the invention
Now the present invention is further described with detailed description of the invention by reference to the accompanying drawings.
Shown in figure 1,2,3,4,5, the vacuum assist toilet trap of the present embodiment, comprise a toilet base 11, water tank 12 is in order to provide water to arrive in described toilet base 11 starting of washing away, one is carried water and washes away pipeline 30 to sewer in direction towards downstream, and one is applied to the vacuum source washed away on pipeline 30 during closestool flushing.Improvements are: this washes away pipeline 30 and has a upper bend 23 and lower straight way 37 and the linking passage 24 between upper bend 23 and lower straight way 37, be connected passage 24 and be communicated in described vacuum source, the outlet of described lower straight way 37 connects one and widens pipe 38, widen in pipe 38 check valve assembly 22 installing a band pretightning force, the check valve assembly 22 of this band pretightning force washes away mid-term for what do not wash away period or vacuum source applying effect at toilet, the outlet of lower straight way 37 is closed, and unidirectional unlatching under the draining momentum effect being washed pipeline 30 latter stage at closestool flushing.
Described water tank 12 is divided into the first water district A by the first dividing plate 19 and second partition 16, second water district B and the 3rd water district C, there is a reserved height H that the first water district A is communicated with the bottom of the second water district B bottom the first described dividing plate 19 and this height H makes the water level in two water districts synchronously to decline and to rise, waterline 26 predetermined bottom described second partition 16 has and is provided with a through hole 15, second water district B is communicated with for 26 times at predetermined waterline with the 3rd water district C, namely the first described water district A, second water district B is all communicated with the bottom of the 3rd water district C.Described water tank 12 is provided with a tank lid 13, on described tank lid 13 inwall along the first water district A enclose each top be provided with a circle sealing mat 21, described tank lid 13 compresses described sealing mat 21 under gravity, the first described water district A is formed sealing area, to provide described vacuum source during washing away, the first described water district A is structure wide at the top and narrow at the bottom, water in pond can be poured rapidly in toilet pond washing away period, and guaranteed water level declines the vacuum source that different height can both provide stable.Be provided with an air hose 20 in the first described water district A, the upper orifice 201 of this air hose 20 exceeds the predetermined waterline 26 of water tank 12, for the transmission of vacuum.
Consult shown in Fig. 4 and Fig. 5, the outlet preferably angular cut of described lower straight way 37, the outlet of lower straight way 37 and the formation of widening pipe 38 upper port plane 29 of cutting sth. askew is with the tube wall axis widening pipe 38 of the check valve assembly 22 of pretightning force to be the angle of acute angle with being provided with.Like this, the outlet of lower straight way 37 adopts the object of angular cut to be to ensure that the outlet of being with the check valve assembly 22 of pretightning force can rotate the less lower straight way 37 of angle realization is opened completely.If adopt the outlet of lower straight way 37 and the check valve assembly 22 of side grain mounting strap pretightning force of truncation, although the effect of sealing also can be realized, but check valve assembly 22 needs larger opening angle, need larger pretightning force simultaneously, be also slightly unfavorable for that it is opened completely.
Further, the described cross section ovalize (not visible because analysing and observe in angle problem figure) widening pipe 38.Shown widens the cross section ovalize of pipe 38 or the orifice configuration of similar ellipse, in order to ensure to provide enough spaces to carry out being with the installation of the check valve assembly 22 of pretightning force location and ensureing that one way valve is opened and draining completely.
Shown in figure 6, the check valve assembly for the band pretightning force closing the outlet of lower straight way 37 can select prior art any one realize.Below, the present invention preferably devises the simple check valve assembly again reliably with pretightning force of a kind of structure: the check valve assembly 22 of described band pretightning force is made up of a sealing ring 221, bracing frame 222 and a holder 223, described sealing ring 221 is arranged on bracing frame 222, for implementing the unlatching of pipeline and closed action; Described bracing frame 222 is provided with a pre-tightening mechanism 36, and this pre-tightening mechanism 36 is connected to holder 223; Described holder 223 widens pipe 38 for being fixed on.The preloading spring that pre-tightening mechanism 36 in the present embodiment is sampled common realizes, and realizes the restoring force of pretension by spring force.Sealing ring 221 can be made can to apply a pressure to the angular cut of lower straight way 37 by the pretightning force of pre-tightening mechanism 36, be beneficial to the enforcement that action closed by sealing ring 221.The pretightning force of this pre-tightening mechanism 36 need not arrange too much, in order to avoid be unfavorable for the unlatching of check valve assembly when washing away.The pretightning force of pre-tightening mechanism 36 is configured to overcome after the gravity of sealing ring 221 slightly greatly.The sealing ring 221 of the check valve assembly 22 with pretightning force, when closestool flushing, because of vacuum source applying effect, can wash away pipeline 30 and produces negative pressure and sealing ring 221 be closed in firmly the outlet of lower straight way 37.
Further improve, there is in the middle part of described sealing ring 221 a protruding thin-walled 34; thin-walled 34 is made up of the easily deformable material of softness, and the thin-walled 34 of the projection of sealing circle 221 is connected rear formation confined space 35 with support frame as described above 222, described confined space 35 provides thin-walled 34 to support.Like this, the check valve assembly 22 of pretightning force is with not seal by means of only the section 29 of the outer ring of sealing ring 221 and the angular cut of lower straight way 37.If section 29 because of ceramic process not ideal enough, and very smooth face cannot be made.Now, be adjacent to the tube wall of lower straight way 37 after can also being out of shape under negative pressure of vacuum by thin-walled 34 and carry out better secondary seal, thus ensureing that sealing performance is better.
In addition, described holder 223 is elastic clamp seats, is located at widens pipe 38 and install fixing by elastic card.Described widens check valve assembly 22 installation and positioning structure that pipe 38 is provided with band pretightning force.The check valve assembly 22 of band pretightning force can be installed and location reliably by the location structure widening pipe 38.Such as, consult shown in Fig. 5 and Fig. 6, the holder 223 of the present embodiment adopts an interlude to be the structure of the cylinder of spring.Like this, as long as by after the spring-compressed of holder 223, snap in the interior Fast Installation that gets final product of the location structure widening pipe 38 and complete, fitting operation is easy and reliable.As, after the upper end of the cylinder of holder 223 being snapped into the positioning convex rib 32 of the plane 29 of cutting sth. askew of widening pipe 38 upper port, the cylinder lower end of holder 223 snaps in the locating groove 33 of the plane 31 of widening pipe 38 lower port, and the check valve assembly 22 that can complete band pretightning force is widening installation and the fixing operation of pipe 38.
The working method of vacuum assist toilet trap of the present invention is: in the 3rd described water district C, be provided with a conventional water intaking valve 14, tap water injects the 3rd water district C by this water intaking valve 14, the second water district B is injected by the through hole 15 arranged bottom described second partition 16, the first water district A is injected into, until the water surface reaches predetermined waterline 26 again by height H reserved bottom the first described dividing plate 19.A conventional draining valve assembly 17 is installed in the second described water district B, described draining valve assembly 17 is built-in bleed off pipe or external bleed off pipe, when a drive unit 27 of draining valve assembly 17 is by driving, described drive unit 27 is push button or wire controlled or Wrench-type, and the water outlet that the inner circumference that the water in the first water district A in water tank 12 and the second water district B carries over toilet pond 28 is embedded is discharged rapidly and flowed into bowl water pond 28 and form certain scouring force.At this moment, the waterline 26 in the first water district A in water tank 12 and the second water district B starts rapid decline, now produces a vacuum source at the top D of the first water district A closed.The linking passage 24 washing away pipeline 30 is connected to an air duct 25, this air duct 25 is connected with the lower nozzle 202 of the air hose 20 in the first described water district A, vacuum source is made to lead to described linking passage 24 again by this air hose 20 and air duct 25, to provide a negative pressure of vacuum during washing away.Like this, vacuum to be applied to by air hose 20 and air duct 25 and to wash away in the linking passage 24 of pipeline 30 by this vacuum source.Due to the effect of this negative pressure of vacuum, the outlet of the lower straight way 37 washing away pipeline 30 is firmly closed by the check valve assembly 22 of band pretightning force, and the air of lower end then cannot enter, and meanwhile, negative pressure of vacuum can continue effect, assists to extract the contents in toilet out.Then, contents in toilet pour sewers at inertia and gravity double action undershoot opening one-way valve module 22, and then check valve assembly 22 again closes under the pretightning force effect of pre-tightening mechanism 36, again sealing close fit is formed with the exit of the lower straight way 37 washing away pipeline 30, deadening dirt refluxes, and isolated stink.Vacuum assist toilet trap of the present invention utilizes secondary vacuum source to decrease water supply volume necessary in washing away, and obtains an effective better scouring effect, and contents nearly all in toilet pond are excluded.When there being solid waste to exist, wash away the water that only need use about 3 liters, but this is with identical design in the half not having water required for the toilet of vacuum-assisted at every turn.
Therefore, vacuum assist toilet trap of the present invention not only achieves the function of original vacuum assist toilet trap, and even effect is better.Topmost, the present invention washes away pipeline 30 after improving, and not only structure is more simple, is easy to manufacture; Meanwhile, decrease the situation that sewage retains in bend, can play and prevent dirt from refluxing, the effect of isolated stink.
Although specifically show in conjunction with preferred embodiment and describe the present invention; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; can make a variety of changes the present invention in the form and details, be protection scope of the present invention.
Claims (12)
1. a vacuum assist toilet trap, comprise a toilet base (11), water tank (12) is in order to provide water to arrive in described toilet base (11) starting of washing away, one is carried water and washes away pipeline (30) to sewer in direction towards downstream, one is applied to the vacuum source washed away on pipeline (30) during closestool flushing, it is characterized in that: this water tank (12) is divided into the first water district (A) by the first dividing plate (19) and second partition (16), second water district (B) and the 3rd water district (C), the described top in the first water district (A) and the tank lid (13) of water tank (12) upper end seal, for providing a vacuum source during washing away, in the first described water district (A), an air hose (20) is installed, air duct (25) on this air hose (20) and base (11) is tightly connected, the reserved height H in first dividing plate (19) bottom, the first described water district (A) is communicated with the second bottom, water district (B), 3rd water district (C) is also communicated with under predetermined waterline (26) with the second water district (B), and the first water district (A) is structure wide at the top and narrow at the bottom, this washes away the linking passage (24) that pipeline (30) has a upper bend (23) and lower straight way (37) and is positioned between bend (23) and lower straight way (37), be connected passage (24) and be communicated in described vacuum source, the outlet of described lower straight way (37) connects one and widens pipe (38), widen in pipe (38) check valve assembly (22) installing a band pretightning force, the check valve assembly (22) of this band pretightning force washes away mid-term for what do not wash away period or vacuum source applying effect at toilet, the outlet of lower straight way (37) is closed, and unidirectional unlatching under closestool flushing to be washed the draining momentum effect of pipeline (30) latter stage.
2. vacuum assist toilet trap according to claim 1, it is characterized in that: the outlet of described lower straight way (37) is angular cut, the outlet of lower straight way (37) with widen that the formation of manage (38) upper port cuts sth. askew that plane (29) and being provided with is with the check valve assembly of pretightning force (22) widen the angle that the tube wall axis of managing (38) is acute angle.
3. vacuum assist toilet trap according to claim 1, is characterized in that: the described cross section ovalize widening pipe (38).
4. vacuum assist toilet trap according to claim 1, is characterized in that: described widens check valve assembly (22) installation and positioning structure that pipe (38) is provided with band pretightning force.
5. vacuum assist toilet trap according to claim 4, it is characterized in that: described installation and positioning structure is respectively equipped with positioning convex rib (32) and locating groove (33) in the plane (31) of the plane of cutting sth. askew (29) and lower port of widening pipe (38) upper port, the upper and lower side for the check valve assembly (22) by band pretightning force carries out installation location.
6. the vacuum assist toilet trap according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that: the check valve assembly (22) of described band pretightning force is made up of a sealing ring (221), a bracing frame (222) and a holder (223)
Described sealing ring (221) is arranged on bracing frame (222), for implementing the unlatching of pipeline and closed action;
Described bracing frame (222) is provided with a pre-tightening mechanism (36), and this pre-tightening mechanism (36) is connected to holder (223);
Described holder (223) widens pipe (38) for being fixed on.
7. vacuum assist toilet trap according to claim 6, it is characterized in that: described sealing ring (221) middle part has a protruding thin-walled (34); thin-walled (34) is made up of the easily deformable material of softness; the thin-walled (34) of the projection of sealing circle (221) is connected with support frame as described above (222) and forms a confined space (35) afterwards, and described confined space (35) provides thin-walled (34) to support.
8. vacuum assist toilet trap according to claim 6, is characterized in that: described holder (223) is elastic clamp seat, is located at widens pipe (38) and install fixing by elastic card.
9. vacuum assist toilet trap according to claim 1, it is characterized in that: on described tank lid (13) inwall along the first water district (A) enclose each side top be provided with a circle sealing mat (21), described tank lid (13) compresses described sealing mat (21) under gravity, formed with the first described water district (A) and be sealed and matched, to provide vacuum source during washing away.
10. vacuum assist toilet trap according to claim 9, is characterized in that: described second partition (16) has a through hole (15) at predetermined waterline (26).
11. vacuum assist toilet traps according to claim 9, is characterized in that: the bottom of described second partition (16) is provided with a through hole (15).
12. vacuum assist toilet traps according to claim 1, it is characterized in that: it is characterized in that: described vacuum assist toilet trap also comprises drive unit (27) and draining valve assembly (17), described drive unit (27) is push button or wire controlled or Wrench-type, and described draining valve assembly (17) is built-in bleed off pipe or external bleed off pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110205260.9A CN102296687B (en) | 2011-07-21 | 2011-07-21 | A kind of vacuum assist toilet trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110205260.9A CN102296687B (en) | 2011-07-21 | 2011-07-21 | A kind of vacuum assist toilet trap |
Publications (2)
| Publication Number | Publication Date |
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| CN102296687A CN102296687A (en) | 2011-12-28 |
| CN102296687B true CN102296687B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110205260.9A Expired - Fee Related CN102296687B (en) | 2011-07-21 | 2011-07-21 | A kind of vacuum assist toilet trap |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643730B (en) * | 2013-11-28 | 2016-02-03 | 科勒(中国)投资有限公司 | High clean-up performance toilet and flushing method thereof |
| CN103711193A (en) * | 2013-12-26 | 2014-04-09 | 科勒(中国)投资有限公司 | Vacuumized hydrocone type closestool and flushing method thereof |
| CN103741778A (en) * | 2013-12-27 | 2014-04-23 | 陈福环 | Closestool with automatic siphon valve device |
| CN108842879B (en) * | 2014-04-11 | 2020-07-24 | 嘉兴市品信电器有限公司 | Water closet |
| CN105888020B (en) * | 2016-06-14 | 2017-09-29 | 王晓峰 | Negative pressure injection well downhole flow regulator for closet |
| CN106436864B (en) * | 2016-07-20 | 2019-05-03 | 张如胜 | A kind of siphonage-toilet and pressure-generating device |
| CN108302226A (en) * | 2018-03-20 | 2018-07-20 | 杨世荣 | A kind of backward flowing preventing device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3566418A (en) * | 1968-05-27 | 1971-03-02 | Monogram Ind Inc | Separator flap assembly |
| 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 |
| SE513084C2 (en) * | 1998-03-19 | 2000-07-03 | Clas Lindqvist | Vacuum assisted water toilet |
| CN101864800A (en) * | 2010-05-21 | 2010-10-20 | 霍锦标 | Water-saving closestool |
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2011
- 2011-07-21 CN CN201110205260.9A patent/CN102296687B/en not_active Expired - Fee Related
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| CN102296687A (en) | 2011-12-28 |
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