EP0498983A1 - Drain valve and lift rod assembly - Google Patents
Drain valve and lift rod assembly Download PDFInfo
- Publication number
- EP0498983A1 EP0498983A1 EP91301229A EP91301229A EP0498983A1 EP 0498983 A1 EP0498983 A1 EP 0498983A1 EP 91301229 A EP91301229 A EP 91301229A EP 91301229 A EP91301229 A EP 91301229A EP 0498983 A1 EP0498983 A1 EP 0498983A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drain
- screen
- plug
- drain hole
- drain valve
- 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.)
- Withdrawn
Links
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/22—Outlet devices mounted in basins, baths, or sinks
- E03C1/23—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
- E03C1/2302—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms the actuation force being transmitted to the plug via rigid elements
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/22—Outlet devices mounted in basins, baths, or sinks
- E03C1/23—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms
Definitions
- Drain valves are used in lavatories in order to release the water contained therein.
- a conventional drain valve comprises a drain hole which is a circular hole and a plug removably received in the drain hole.
- a lift rod is connected with the plug and a control bar operates the lift rod.
- the control bar can be forced down to lift the plug out of the drain hole.
- its normal position is in lower or downward position for containing water in the bowl in which the valve is installed. Due to gravity, the normal position of the control bar is in the lower condition, However this is contrary to the requirement of the plug.
- the plug upwardly protrudes from the drain hole.
- a further objective of the present invention is to provide a drain valve which comprises a plug received in a drain hole. Screen wherein the plug is disposed below the upper surface of the drain hole screen so that the plug is moved upwardly when inserted into the drain hole screen and downwardly when opening the drain holes therein. Therefore, the plug will not obstruct the use of the lavatory.
- Another objective of the present invention is to provide a drain valve and lift rod device, wherein the plug comprises a plurality of tapered, or conical, stems and the drain holes comprise a plurality of tapered or conical circular cross-section openings, so that the tapered stems are inserted into respective circular openings to close the valve and store water in the lavatory. Therefore, the drain hole screen can be any suitable configuration and shape in order to beautify the appearance of the drain hole.
- the drain hole screen has a plurality of circular openings to form a filter which prevents large from draining through the valve.
- a further objective of the present invention is to provide a drain valve and lift rod device, wherein a control bar is forced down to lift the plug upward to insert the plug into the drain holes. Therefore, when the control bar is in its normal position, that is in the lowered position, the plug is inserted into the drain holes also in the normal position, and, the operation of the control bar is much easier than a conventional control bar.
- a drain valve and lift rod device of the present invention comprises a drain hole screen or filter 10 formed in the lowest portion or drain hole of a sink, wash basin or lavatory 20, a plug 30 removeable received in the drain holes 11 of screen 10 and disposed below the top surface thereof, a lift rod 40 downwardly extending from and engaged with the plug 30 actuating rod 60 pivotally connected at one end to the lower end of rod 40, and a control bar 50 pivotally engaging with the other end of rod 60.
- a weight 51 is disposed at the lower end of the control bar 50 to adjust and balance the force of the control bar 50 and the lift rod 40. When forcing the control bar 50 downward, the lift rod 40 will move the plug 30 upward and insert the plug 30 into the drain holes 11 to store water in the lavatory 20 for use.
- Actuating rod 60 is pivotally connected in a conventional manner as shown generally at 61 in Fig. 1 and has one end 62 inserted loosely through one of adjusting holes 52 in rod 50 and the other end 64 inserted loosely through hole 42 in rod 40, so that upward and downward movement of rod 50 pivots rod 60 about pivotal connection 61 to lower and raise rod 40, respectively, to control opening and closely, respectively, of the drain valve.
- Fig. 8 which also shows the manner in which the upper end of control bar 40 extends through hole 24 in the lavatory or bowl 20 and has a knob or handle 54 thereon.
- the plug 30 is disposed below the upper surface of drain hole screen 10, so that there is no obstacle when using water contained in the lavatory 20 or cleaning the lavatory 20. Due to gravity, the normal position of the control bar 50 is in the lower or downward position. When the control bar 50 is lowered down, the plug 30 is moved upward and inserted into drain holes 11, that is the normal positions of the control bar 50 and the plug 30 are opposite.
- the plug 30 when either being inserted into or removed from drain holes 11 will not obstruct the inner space of the lavatory 20 for use. Therefore, it is convenient for the user to wash any article in the lavatory 20 and clean the lavatory 20.
- the drain holes 11 comprise a plurality of circular openings and the plug 30 comprises a plurality of tapered or conical stems having a circular cross-section 31 inserted into respective circular cross-section tapered or conical openings 11 to prevent water from draining from the lavatory 20. Since the drain hole screen 10 is formed of a plurality of the circular openings 11, the drain hole screen 10 is a filter to prevent objects larger than the holes from draining there through. It is not necessary to further provide a filter because the drain hole screen 10 is a filter. Therefore, the drain hole screen 10 can be formed in various shapes, as shown in Figs. 4 and 5, to beautify the appearance of the drain hole 10.
- Figs.6 and 7 show various embodiments of the present invention, wherein the drain hole screen 10 can be formed in " H "or " S " shapes and the plug 30 (not shown ) has similar shapes respectively, for insertion into drain holes 11. It is obvious that the appearance of the drain hole 10 can be modified by those skilled in the art.
- the present invention provides a drain valve having a screen 10 which can be a filter so that no further filter has to be provided.
- the drain hole screen 10 is mounted in lowest portion of the lavatory 20 in order to completely drain water contained therein and to easily clean the lavatory 20. Because the plug 30 is disposed below screen 10, whether moved upward or downward, there is no obstacle formed in the lavatory 20 when in use or being cleaned. When the plug 30 has been moved to the uppermost position, the top surface 33 becomes flush with the outside face of the drain hole screen (10) to facilitate cleaning of the top surface, and eliminate the defect of built-in plug which is hard to clean dirt therein.
- the shape of the drain hole 10 can be modified as desire to beautify the appearance of the lavatory 20 and the drain hole screen 10.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
A drain valve and lift rod device comprises a drain hole screen or filter (10) at the lowest portion of a lavatory (20), a plug (30) disposed below that top of the drain hole screen removably inserted into the drain holes (11), a lift rod (40) engaged with the plyg and extending downwardly therefrom, and a control bar (50) for operating the lift rod through a pivotable actuating rod (60). When the control bar is lowered, the plug is moved upward to be inserted fully into the drain holes; and when the control bar is moved upwardly, the plug is moved downwardly and removed from the valve closing position in the drain holes. The drain holes are a plurality of tapered or conical circular cross-section openings (11) and the plug has a plurality of similarly shaped stems (31) which when inserted fully into the circular openings, respectively, prevent water contained in the lavatory from draining.
Description
- Drain valves are used in lavatories in order to release the water contained therein. A conventional drain valve comprises a drain hole which is a circular hole and a plug removably received in the drain hole. To control the release of the plug, a lift rod is connected with the plug and a control bar operates the lift rod. As disclosed in U.S. Patent No.3010118 and Patent No. 3,453,667, the control bar can be forced down to lift the plug out of the drain hole. When using the drain valve, its normal position is in lower or downward position for containing water in the bowl in which the valve is installed. Due to gravity, the normal position of the control bar is in the lower condition, However this is contrary to the requirement of the plug. For a conventional drain plug, the plug upwardly protrudes from the drain hole. This is inconvenient for the user when he uses the water contained in the lavatory or cleans the lavatory. It is also difficult to clean the drain hole because of the obstacle of the plug. There is no filter formed in the drain hole, so that it is possible to drain wast through the drain hole to a drain pipe.
- It is a main objective of the present invention to provide a drain valve and lift rod combination in order to overcome the disadvantages and drawbacks of conventional drain valves.
- A further objective of the present invention is to provide a drain valve which comprises a plug received in a drain hole. Screen wherein the plug is disposed below the upper surface of the drain hole screen so that the plug is moved upwardly when inserted into the drain hole screen and downwardly when opening the drain holes therein. Therefore, the plug will not obstruct the use of the lavatory.
- Another objective of the present invention is to provide a drain valve and lift rod device, wherein the plug comprises a plurality of tapered, or conical, stems and the drain holes comprise a plurality of tapered or conical circular cross-section openings, so that the tapered stems are inserted into respective circular openings to close the valve and store water in the lavatory. Therefore, the drain hole screen can be any suitable configuration and shape in order to beautify the appearance of the drain hole. The drain hole screen has a plurality of circular openings to form a filter which prevents large from draining through the valve.
- A further objective of the present invention is to provide a drain valve and lift rod device, wherein a control bar is forced down to lift the plug upward to insert the plug into the drain holes. Therefore, when the control bar is in its normal position, that is in the lowered position, the plug is inserted into the drain holes also in the normal position, and, the operation of the control bar is much easier than a conventional control bar.
- The invention will now be described with reference to the accompanying drawing wherein:
- Fig. 1 is a cross-sectional view of the present invention;
- Fig. 2 is a top plan view of the drain in the present invention;
- Fig. 3 is a partial cross-sectional view of the drain valve of the present invention showing a plug inserted in the drain hole screen;
- Figs. 4 and 5 are top plan views showing various shapes of drain hole screens of various embodiments of the present invention;
- Fig. 6 is a top plan view showing an H-shaped drain hole screen of the present invention;
- Fig. 7 is a top plan view showing an S-shaped drain hole screen of the present invention;and
- Fig. 8 is a perspective cross-sectional view of the invention.
- Referring to Figs. 1 and 2, a drain valve and lift rod device of the present invention comprises a drain hole screen or
filter 10 formed in the lowest portion or drain hole of a sink, wash basin orlavatory 20, aplug 30 removeable received in thedrain holes 11 ofscreen 10 and disposed below the top surface thereof, alift rod 40 downwardly extending from and engaged with theplug 30 actuatingrod 60 pivotally connected at one end to the lower end ofrod 40, and acontrol bar 50 pivotally engaging with the other end ofrod 60. Aweight 51 is disposed at the lower end of thecontrol bar 50 to adjust and balance the force of thecontrol bar 50 and thelift rod 40. When forcing thecontrol bar 50 downward, thelift rod 40 will move theplug 30 upward and insert theplug 30 into thedrain holes 11 to store water in thelavatory 20 for use. - Actuating
rod 60 is pivotally connected in a conventional manner as shown generally at 61 in Fig. 1 and has oneend 62 inserted loosely through one of adjustingholes 52 inrod 50 and theother end 64 inserted loosely throughhole 42 inrod 40, so that upward and downward movement ofrod 50pivots rod 60 aboutpivotal connection 61 to lower and raiserod 40, respectively, to control opening and closely, respectively, of the drain valve. These structural features and manner of use are more clearly shown in Fig. 8 which also shows the manner in which the upper end ofcontrol bar 40 extends throughhole 24 in the lavatory orbowl 20 and has a knob or handle 54 thereon. - It is obvious that the
plug 30 is disposed below the upper surface ofdrain hole screen 10, so that there is no obstacle when using water contained in thelavatory 20 or cleaning thelavatory 20. Due to gravity, the normal position of thecontrol bar 50 is in the lower or downward position. When thecontrol bar 50 is lowered down, theplug 30 is moved upward and inserted intodrain holes 11, that is the normal positions of thecontrol bar 50 and theplug 30 are opposite. - The
plug 30 when either being inserted into or removed fromdrain holes 11 will not obstruct the inner space of thelavatory 20 for use. Therefore, it is convenient for the user to wash any article in thelavatory 20 and clean thelavatory 20. - The
drain holes 11 comprise a plurality of circular openings and theplug 30 comprises a plurality of tapered or conical stems having acircular cross-section 31 inserted into respective circular cross-section tapered orconical openings 11 to prevent water from draining from thelavatory 20. Since thedrain hole screen 10 is formed of a plurality of thecircular openings 11, thedrain hole screen 10 is a filter to prevent objects larger than the holes from draining there through. It is not necessary to further provide a filter because thedrain hole screen 10 is a filter. Therefore, thedrain hole screen 10 can be formed in various shapes, as shown in Figs. 4 and 5, to beautify the appearance of thedrain hole 10. - Figs.6 and 7 show various embodiments of the present invention, wherein the
drain hole screen 10 can be formed in " H "or " S " shapes and the plug 30 ( not shown ) has similar shapes respectively, for insertion intodrain holes 11. It is obvious that the appearance of thedrain hole 10 can be modified by those skilled in the art. - Referring to Fig. 3, when the
plug 30 is inserted into thedrain hole screen 10, there aresmall spaces 32 formed betweenplug 30 and drainhole screen 10. If there is small waste drained through thedrain hole screen 10, it will be easy to force it to flow down when water drains through the screen. - Thus, the present invention provides a drain valve having a
screen 10 which can be a filter so that no further filter has to be provided. Thedrain hole screen 10 is mounted in lowest portion of thelavatory 20 in order to completely drain water contained therein and to easily clean thelavatory 20. Because theplug 30 is disposed belowscreen 10, whether moved upward or downward, there is no obstacle formed in thelavatory 20 when in use or being cleaned. When theplug 30 has been moved to the uppermost position, thetop surface 33 becomes flush with the outside face of the drain hole screen (10) to facilitate cleaning of the top surface, and eliminate the defect of built-in plug which is hard to clean dirt therein. The shape of thedrain hole 10 can be modified as desire to beautify the appearance of thelavatory 20 and thedrain hole screen 10. Further, there is anadjustable weight 51 arranged at the low end of thecontrol bar 50, so that the operation force will be small. Since theplug 30 can be directly moved downward or upward, no further supporting member is necessary to be arranged in the drain pipe so that the manufacturing and assembling will be much more easier. - As various possible embodiments might be made of the above invention without departing from the scope of the invention, it is to be understood that all matter herein described or shown in the accompany drawings is to be interpreted as illustrative and not in a limiting sense. Thus, if will be appreciated that the drawings are exemplary of preferred embodiments of the invention.
Claims (8)
- A drain valve assembly for a sink or the like having a drain hole, comprising:
a drain hole screen mounted in the drain hole having an outer side facing the sink and inner side facing oppositely to said outer side;
a plurality of tapered openings in said screen having a smaller cross-section at said outer side than at said inner side;
a plug disposed adjacent said inner side of said screen;
a plurality of tapered stems extending from said plug inserted in and subsantially conforming with respective ones of said tapered holes, with the top surface and the outer side face of the drain hole screen flush with each other when the stems have been moved to the uppermost position;
a lift rod extending from said plug in a direction substantially opposite to said stems; and
control bar means operatively connected to said lift rod for reciprocation said lift rod toward and away from said screen, so the operation of said control bar in a valve closing direction reciprocates said lift rod toward said screen to displace said plug and stems so that the stems are in a fully inserted position in said screen and tapered holes for closing the drain valve, and operation of said control bar in a valve opening direction reciprocates said lift rod in a direction away from said screen to displace said plug and stems in a direction away from said outer side of said screen for opening the drain valve, the amount of the displacement in said direction away from said outer side controlling the flow rate through the drain hole. - A drain valve assembly as claimed in claim 1 wherein said tapered holes are frustoconically shaped holes, and said stems are frustoconically shaped to conform with respective ones of said holes.
- A drain valve assembly as claimed in claim 1 or 2 wherein said holes have a circular cross-section; and said stems have a circular cross-section.
- A drain valve assembly as claimed in claim 1, 2 or 3 wherein said drain hole screen is circular-shaped.
- A drain valve assembly as claimed in claim 1, 2 or 3 wherein said drain hole screen is rectangular-shaped.
- A drain valve assembly as claimed in claim 1, 2 or 3 wherein said drain hole screen is triangular-shaped.
- A drain valve assembly as claimed in claim 1, 2 or 3 wherein said drain hole screen is H-shaped.
- A drain valve assembly as claimed in claim 1, 2 or 3 wherein said drain hole screen is S-shaped.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91301229A EP0498983A1 (en) | 1991-02-15 | 1991-02-15 | Drain valve and lift rod assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91301229A EP0498983A1 (en) | 1991-02-15 | 1991-02-15 | Drain valve and lift rod assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0498983A1 true EP0498983A1 (en) | 1992-08-19 |
Family
ID=8208195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91301229A Withdrawn EP0498983A1 (en) | 1991-02-15 | 1991-02-15 | Drain valve and lift rod assembly |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0498983A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100825210B1 (en) | 2007-01-18 | 2008-04-25 | 김승관 | Drain valve system of the washstand which it closes from inside |
WO2015149800A1 (en) * | 2014-03-31 | 2015-10-08 | Dioptic Gmbh | Device and method for saving fluids and powders |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1397038A (en) * | 1964-05-26 | 1965-04-23 | Pop-up valve and automatic overflow grid for sinks | |
US3453667A (en) * | 1966-10-07 | 1969-07-08 | Young Stephen A | Drain valve connecting means |
DE3321390A1 (en) * | 1982-07-08 | 1984-01-12 | Osakeyhtiö All-Plast AB, 00200 Helsinki | Sieve and stopper for an outlet pipe connected to a basin or pool |
-
1991
- 1991-02-15 EP EP91301229A patent/EP0498983A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1397038A (en) * | 1964-05-26 | 1965-04-23 | Pop-up valve and automatic overflow grid for sinks | |
US3453667A (en) * | 1966-10-07 | 1969-07-08 | Young Stephen A | Drain valve connecting means |
DE3321390A1 (en) * | 1982-07-08 | 1984-01-12 | Osakeyhtiö All-Plast AB, 00200 Helsinki | Sieve and stopper for an outlet pipe connected to a basin or pool |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100825210B1 (en) | 2007-01-18 | 2008-04-25 | 김승관 | Drain valve system of the washstand which it closes from inside |
WO2015149800A1 (en) * | 2014-03-31 | 2015-10-08 | Dioptic Gmbh | Device and method for saving fluids and powders |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE ES FR GB IT LI NL SE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19930220 |