US20060200896A1 - Ventilation check valve for bathrooms and toilets - Google Patents
Ventilation check valve for bathrooms and toilets Download PDFInfo
- Publication number
- US20060200896A1 US20060200896A1 US11/078,420 US7842005A US2006200896A1 US 20060200896 A1 US20060200896 A1 US 20060200896A1 US 7842005 A US7842005 A US 7842005A US 2006200896 A1 US2006200896 A1 US 2006200896A1
- Authority
- US
- United States
- Prior art keywords
- check valve
- ventilation
- duct
- inlet end
- ball
- 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.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/04—Special arrangement or operation of ventilating devices
Definitions
- the present invention relates to a ventilation check valve for bathrooms and toilets and particularly to a check valve for improving air ventilation of bathrooms and toilets and fending off virus and insects that has an elbow duct with a sloped side in the interior the hold a ball which can roll when pushed by airflow to form a passage and slide to automatically close an air ventilation vent when the air ventilation stops.
- FIG. 1 for a conventional air ventilation for a toilet A. It has a ventilation vent A 10 to dispel foul smell after use. While it can dispel the indoor air outside, it also draws outside filthy or foul air indoors. Hence the indoor air and outdoor air exchange freely. Virus existed in the ambience is easily transported into the toilet A through the vent. The virus breeds easily in the room and causes hazards.
- the conventional ventilation vent A 10 of the toilet A previously discussed can only circulate air indoors and outdoors. It does not improve air ventilation very much, but breeds virus easily.
- the present invention aims to provide a check valve to improve air ventilation of bathrooms and toilets that is adaptable to varying air ventilation conditions of the bathrooms and toilets and environmental conditions to dispel foul smell in the bathrooms and toilets, and improve air ventilation.
- Another object of the invention is to provide a filter on an outlet end of the check valve to prevent insets or external articles from entering through the passage of the check valve, or clogging the passage.
- the check valve according to the invention includes an elbow duct which has a sloped side and a ball located on the sloped side movable under airflow to a conical cavity to form a passage.
- the ball automatically slides on the sloped side to close a ventilation vent to prevent external air from entering the bathroom and toilet thereby to improve air ventilation of the bathroom and toilet.
- FIG. 1 is a schematic view of a conventional ventilation vent configuration in a toilet.
- FIG. 2 is a perspective view of the check valve of the invention.
- FIG. 3 is a schematic view of the check valve of the invention.
- FIG. 4 is a sectional view of the check valve of the invention.
- FIG. 5 is a schematic view of the invention with the ball in an open condition.
- FIG. 6 is a schematic view of the invention with the ball sealing the inlet end.
- FIG. 7 is a schematic view of the invention with the check valve installed in a toilet.
- FIG. 8 is a schematic view of another embodiment of the present invention in an air dispelling condition.
- FIG. 9 is a schematic view of the invention according to FIG. 8 with the ball sealing the inlet end.
- the check valve 2 is installed on one side of a ventilation vent 10 of a toilet 1 .
- the check valve 2 has an elbow duct 20 .
- the elbow duct 20 has an inlet end 200 on one side communicating with the ventilation vent 10 of the toilet 1 .
- the inlet end 200 is extended from one side to form a cylinder 201 .
- the cylinder 201 has an inner rim to couple with a padding 21 .
- the elbow duct 20 has a sloped side 203 on the bottom forming an inclined angle ⁇ about 5-10 degrees (as shown in FIG. 4 ).
- the sloped side 203 has an upper end bending to form a conical cavity 206 .
- the conical cavity 206 has two ends forming respectively an arched portion 207 and a zigzag edge 208 .
- the elbow duct 20 has a passage 204 in the interior that houses a ball 3 .
- the ball 3 slides automatically on the sloped side 203 to close the inlet end 200 to prevent outdoor filthy air from entering to the toilet 1 .
- airflow 4 enters through the inlet end 200 of the elbow duct 20 , pushes the ball 3 on the sloped side 203 to the conical cavity 206 and rest on the arched portion 207 and the zigzag edge 208 .
- the inlet end 200 and the outlet end 202 communicate with each other so that the air can be dispelled through the passage 204 .
- airflow 4 that pushed the ball 3 is absent, the ball 3 automatically slides on the sloped side 203 to close the inlet end 200 .
- the periphery 30 of the ball 3 is in contact with the cylinder 201 of the inlet end 200 .
- the padding 21 and the ball 3 further form a close contact to seal the inlet end 200 (referring to FIG. 6 ).
- the external virus 5 is prevented from entering the toilet 1 , and people in the room are protected.
- the check valve 2 when the check valve 2 is in use for the toilet 1 to dispel air (to discharge air from indoor to a piping room 22 as shown in FIG. 7 ), in order to prevent outdoor foul air, filthy gas and virus 5 from entering, the ball 3 in the elbow duct 20 automatically slides on the sloped side 203 to close the inlet end 200 , with the periphery 30 of the ball 3 to form a closely sealing with the cylinder 201 .
- the toilet 1 can be well ventilated and also fend off the virus 5 .
- the check valve 6 consists of a large duct 60 and a small duct 61 .
- the large duct 60 has a cavity 600 running through the interior, an opening 601 on one end and an outlet end 602 on other end.
- the cavity 601 houses the small duct 61 which has an inlet end 610 on one end and a flange 611 formed on the inlet end 610 .
- the small duct 61 also has slots 612 on the periphery that oppose and correspond to each other and a closed surface 613 on other end.
- the closed surface 613 has an aperture 614 at a diameter smaller than the inner diameter of the small duct.
- the small duct 61 is inserted into the large duct 60 through the opening 601 and located in the large duct 60 in an inclined manner at an upper inclined angle ⁇ about 5-10 degrees.
- the small duct 61 houses a ball 3 .
- airflow 4 enters through the inlet end 610 of the check valve 6 , and pushes the ball 3 to the closed surface 613 .
- the airflow passes through the slots 612 and is discharged through the outlet end 602 .
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Sink And Installation For Waste Water (AREA)
- Check Valves (AREA)
Abstract
A check valve for bathrooms and toilets to improve air ventilation and prevent insects and viruses from entering the bathrooms and toilets includes an elbow duct which has an inlet end on one side communicating with a ventilation vent, and a cylinder extended outwards from the inlet end to couple with a padding on the inner rim. There is an outlet end on other end of the elbow duct positioned in a diagonal and upper manner relative to the cylinder. The elbow duct has an inclined side on the bottom. The inclined side has an upper end bent to form a conical cavity. The elbow duct houses a ball which may roll automatically on the inclined side to close the ventilation vent. When air is dispelled through the ventilation vent, airflow pushes the ball to the conical cavity to form a passage in the elbow duct.
Description
- The present invention relates to a ventilation check valve for bathrooms and toilets and particularly to a check valve for improving air ventilation of bathrooms and toilets and fending off virus and insects that has an elbow duct with a sloped side in the interior the hold a ball which can roll when pushed by airflow to form a passage and slide to automatically close an air ventilation vent when the air ventilation stops.
- With the population density getting higher and higher in every country, urbanization is a growing trend around the world. These days more and more people are living in the city. Because of the land supply is limited, group residences such as apartments and condominiums have replaced the single houses and bungalows to become the mainstream of the housing market. Some builders, in order to enlarge the visible living quarters to impress customers, often pay less attention on the bathroom and toilet. Some even compromise the minimum requirements of the bathroom and toilet. As a result, accidents occurred in the bathroom and toilet have grown in recent years and being frequently reported. And the bathroom and toilet often are damp and musty. People easily slips and falls down. And foul smell breeds. Suffering from toxic monoxide frequently happens. They also become a hot bed to spread infectious diseases, especially those air-born diseases (such as Hanta virus). All this is attributable to the poor air ventilation of the bathroom and toilet.
- Conventional air ventilation of the bathroom and toilet usually is done by constructing windows. In the group housing, due to design constraints, many bathrooms and toilets are located inside the house and have no windows. Air ventilation has to be accomplished through pipes.
- Refer to
FIG. 1 for a conventional air ventilation for a toilet A. It has a ventilation vent A10 to dispel foul smell after use. While it can dispel the indoor air outside, it also draws outside filthy or foul air indoors. Hence the indoor air and outdoor air exchange freely. Virus existed in the ambience is easily transported into the toilet A through the vent. The virus breeds easily in the room and causes hazards. - The conventional ventilation vent A10 of the toilet A previously discussed can only circulate air indoors and outdoors. It does not improve air ventilation very much, but breeds virus easily.
- In view of the aforesaid disadvantages, the present invention aims to provide a check valve to improve air ventilation of bathrooms and toilets that is adaptable to varying air ventilation conditions of the bathrooms and toilets and environmental conditions to dispel foul smell in the bathrooms and toilets, and improve air ventilation.
- Another object of the invention is to provide a filter on an outlet end of the check valve to prevent insets or external articles from entering through the passage of the check valve, or clogging the passage.
- The check valve according to the invention includes an elbow duct which has a sloped side and a ball located on the sloped side movable under airflow to a conical cavity to form a passage. When air ventilation stops, the ball automatically slides on the sloped side to close a ventilation vent to prevent external air from entering the bathroom and toilet thereby to improve air ventilation of the bathroom and toilet.
- The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.
-
FIG. 1 is a schematic view of a conventional ventilation vent configuration in a toilet. -
FIG. 2 is a perspective view of the check valve of the invention. -
FIG. 3 is a schematic view of the check valve of the invention. -
FIG. 4 is a sectional view of the check valve of the invention. -
FIG. 5 is a schematic view of the invention with the ball in an open condition. -
FIG. 6 is a schematic view of the invention with the ball sealing the inlet end. -
FIG. 7 is a schematic view of the invention with the check valve installed in a toilet. -
FIG. 8 is a schematic view of another embodiment of the present invention in an air dispelling condition. -
FIG. 9 is a schematic view of the invention according toFIG. 8 with the ball sealing the inlet end. - Please referring to
FIGS. 2 and 3 , thecheck valve 2 according to the present invention is installed on one side of aventilation vent 10 of atoilet 1. Thecheck valve 2 has anelbow duct 20. Theelbow duct 20 has aninlet end 200 on one side communicating with theventilation vent 10 of thetoilet 1. Theinlet end 200 is extended from one side to form acylinder 201. Thecylinder 201 has an inner rim to couple with apadding 21. There is anoutlet end 202 formed in a diagonal manner from thecylinder 201, and tilted upwards. Theelbow duct 20 has asloped side 203 on the bottom forming an inclined angle θ about 5-10 degrees (as shown inFIG. 4 ). Thesloped side 203 has an upper end bending to form aconical cavity 206. Theconical cavity 206 has two ends forming respectively anarched portion 207 and azigzag edge 208. Theelbow duct 20 has apassage 204 in the interior that houses aball 3. Theball 3 slides automatically on thesloped side 203 to close theinlet end 200 to prevent outdoor filthy air from entering to thetoilet 1. There isfilter 205 coupled on theoutlet end 202 to prevent insets from entering through thepassage 204. - Referring to
FIG. 5 , when to ventilate thetoilet 1,airflow 4 enters through theinlet end 200 of theelbow duct 20, pushes theball 3 on thesloped side 203 to theconical cavity 206 and rest on thearched portion 207 and thezigzag edge 208. Theinlet end 200 and theoutlet end 202 communicate with each other so that the air can be dispelled through thepassage 204. After the air ventilation has finished,airflow 4 that pushed theball 3 is absent, theball 3 automatically slides on thesloped side 203 to close theinlet end 200. Theperiphery 30 of theball 3 is in contact with thecylinder 201 of theinlet end 200. Thepadding 21 and theball 3 further form a close contact to seal the inlet end 200 (referring toFIG. 6 ). Thus theexternal virus 5 is prevented from entering thetoilet 1, and people in the room are protected. - Moreover, when the
check valve 2 is in use for thetoilet 1 to dispel air (to discharge air from indoor to apiping room 22 as shown inFIG. 7 ), in order to prevent outdoor foul air, filthy gas andvirus 5 from entering, theball 3 in theelbow duct 20 automatically slides on thesloped side 203 to close theinlet end 200, with theperiphery 30 of theball 3 to form a closely sealing with thecylinder 201. Thus external articles, filthy gas andvirus 5, cannot enter through thepassage 204 and theinlet end 200 into thetoilet 1. Thetoilet 1 can be well ventilated and also fend off thevirus 5. - Refer to
FIG. 8 for another embodiment of the check valve of the invention in a use condition. Thecheck valve 6 consists of alarge duct 60 and asmall duct 61. Thelarge duct 60 has acavity 600 running through the interior, anopening 601 on one end and anoutlet end 602 on other end. Thecavity 601 houses thesmall duct 61 which has aninlet end 610 on one end and aflange 611 formed on theinlet end 610. Thesmall duct 61 also hasslots 612 on the periphery that oppose and correspond to each other and aclosed surface 613 on other end. Theclosed surface 613 has anaperture 614 at a diameter smaller than the inner diameter of the small duct. Thesmall duct 61 is inserted into thelarge duct 60 through theopening 601 and located in thelarge duct 60 in an inclined manner at an upper inclined angle θ about 5-10 degrees. Thesmall duct 61 houses aball 3. When to dispel air from thetoilet 1,airflow 4 enters through theinlet end 610 of thecheck valve 6, and pushes theball 3 to theclosed surface 613. Hence the airflow passes through theslots 612 and is discharged through theoutlet end 602. - When air discharge of the
toilet 1 is finished, theairflow 4 pushing theball 3 is absent, theball 3 rolls automatically due to the inclined angle θ to theflange 611 of theinlet end 610 to close theinlet end 610 of thesmall duct 61. Thusexternal virus 5 and insets are prevented from entering through theaperture 614 or theslots 612 into the toilet 1 (referring toFIG. 9 ).
Claims (10)
1. A ventilation check valve for bathrooms and toilets located on one side of a ventilation vent, comprising an elbow duct which has an inlet end on one side and an outlet end on other side, the inlet end being extended outwards to form a cylinder, the outlet end being located in a diagonal and upper manner relative to the cylinder, the elbow duct further having a sloped side on the bottom that has one end bent to form a conical cavity and a passage in the interior, the passage holding a ball which rolls automatically to close the inlet end to prevent outdoor foul air and filthy gases from entering a toilet.
2. The ventilation check valve of claim 1 , wherein the inlet end communicates with the ventilation vent of the toilet.
3. The ventilation check valve of claim 1 , wherein the cylinder has an inner rim to couple with a padding.
4. The ventilation check valve of claim 1 , wherein the sloped side has an inclined angle ranging from 5 degree to 10 degree.
5. The ventilation check valve of claim 1 , wherein the conical cavity has two ends that are formed respectively an arched portion and a zigzag edge.
6. The ventilation check valve of claim 1 , wherein the outlet end is coupled with a filter.
7. The ventilation check valve of claim 1 , wherein the check valve includes a large duct which houses a small duct, the large duct having an opening on one end and an outlet end on other end, the small duct having an inlet end on one end that has a flange, slots on the periphery that are opposing and corresponding to each other, and a closed surface on other end thereof, the closed surface having an aperture at a diameter smaller than the inner diameter of the smaller duct, the small duct further housing a ball.
8. The ventilation check valve of claim 7 , wherein the large duct has a cavity running through the interior thereof.
9. The ventilation check valve of claim 7 , wherein the small duct is positioned at an inclined angle.
10. The ventilation check valve of claim 9 , wherein the inclined angle ranges from 5 degree to 10 degree.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/078,420 US20060200896A1 (en) | 2005-03-14 | 2005-03-14 | Ventilation check valve for bathrooms and toilets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/078,420 US20060200896A1 (en) | 2005-03-14 | 2005-03-14 | Ventilation check valve for bathrooms and toilets |
Publications (1)
Publication Number | Publication Date |
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US20060200896A1 true US20060200896A1 (en) | 2006-09-14 |
Family
ID=36969206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/078,420 Abandoned US20060200896A1 (en) | 2005-03-14 | 2005-03-14 | Ventilation check valve for bathrooms and toilets |
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US (1) | US20060200896A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130263366A1 (en) * | 2012-02-28 | 2013-10-10 | Roy A. Prete | Toilet odor removal system |
CN106594949A (en) * | 2016-12-18 | 2017-04-26 | 滨州市甲力太阳能科技有限公司 | Self-opened exhaust port |
WO2018053608A1 (en) * | 2016-09-26 | 2018-03-29 | Yordanov Orlin Bogomilov | Self-sealing back draft damper |
CN114737652A (en) * | 2022-04-11 | 2022-07-12 | 莫军 | Automatic air interchanger for toilet of multi-storey residential building |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US859399A (en) * | 1906-05-21 | 1907-07-09 | Bradford Martin | Valve-seat. |
US2451108A (en) * | 1946-10-24 | 1948-10-12 | Caleh M Molpus | Toilet ventilating means |
US3192539A (en) * | 1963-08-01 | 1965-07-06 | William L Martz | Ventilators for water closets, kitchens and the like |
US5509445A (en) * | 1993-11-01 | 1996-04-23 | Jean-Marc Lamoureux | Check valve for a discharge air duct |
US5709242A (en) * | 1993-09-01 | 1998-01-20 | Metalo Monti V.O.F. | Device for blocking a liquid flow through a pipe in one direction |
-
2005
- 2005-03-14 US US11/078,420 patent/US20060200896A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US859399A (en) * | 1906-05-21 | 1907-07-09 | Bradford Martin | Valve-seat. |
US2451108A (en) * | 1946-10-24 | 1948-10-12 | Caleh M Molpus | Toilet ventilating means |
US3192539A (en) * | 1963-08-01 | 1965-07-06 | William L Martz | Ventilators for water closets, kitchens and the like |
US5709242A (en) * | 1993-09-01 | 1998-01-20 | Metalo Monti V.O.F. | Device for blocking a liquid flow through a pipe in one direction |
US5509445A (en) * | 1993-11-01 | 1996-04-23 | Jean-Marc Lamoureux | Check valve for a discharge air duct |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130263366A1 (en) * | 2012-02-28 | 2013-10-10 | Roy A. Prete | Toilet odor removal system |
WO2018053608A1 (en) * | 2016-09-26 | 2018-03-29 | Yordanov Orlin Bogomilov | Self-sealing back draft damper |
US20190346053A1 (en) * | 2016-09-26 | 2019-11-14 | Orlin Bogomilov Yordanov | Self-Sealing Backdraft Damper |
CN106594949A (en) * | 2016-12-18 | 2017-04-26 | 滨州市甲力太阳能科技有限公司 | Self-opened exhaust port |
CN114737652A (en) * | 2022-04-11 | 2022-07-12 | 莫军 | Automatic air interchanger for toilet of multi-storey residential building |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |