US20150040312A1 - Drain apparatus - Google Patents
Drain apparatus Download PDFInfo
- Publication number
- US20150040312A1 US20150040312A1 US14/242,892 US201414242892A US2015040312A1 US 20150040312 A1 US20150040312 A1 US 20150040312A1 US 201414242892 A US201414242892 A US 201414242892A US 2015040312 A1 US2015040312 A1 US 2015040312A1
- Authority
- US
- United States
- Prior art keywords
- shank
- aperture
- drain
- stopper
- stem
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K1/00—Wash-stands; Appurtenances therefor
- A47K1/14—Stoppers for wash-basins, baths, sinks, or the like
-
- 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
-
- 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
- E03C1/2306—Outlet devices mounted in basins, baths, or sinks with mechanical closure mechanisms the plug being operated by hand contact
Definitions
- the present invention relates to a drain apparatus, and more particularly to a stem assembly of a drain apparatus.
- a conventional drain apparatus has an annular body and a closure member which may be seated against the inlet end of a drain passage through the body.
- a stem extends from the closure member through a guide element within the drain passage and a spring acts between the stem and guide element to apply sealing pressure to the seated closure member.
- the closure member may be manually pulled outwardly from the body against the force of the spring and turned angularly to latch the member at an open position when fluid is to be drained.
- the positive sealing force generated by the spring minimizes or avoids leakage under conditions where the forces of gravity and pressure from overlying liquid may be inadequate for the purpose.
- the present invention has arisen to mitigate and/or obviate the disadvantages of the conventional drain apparatus.
- the main objective of the present invention is to provide an improved stem assembly of a drain apparatus.
- a drain apparatus comprises a drain body, a stopper, a stem and at least one torsion spring.
- the drain body has a drain passage therethrough and a frame radially extending across the drain passage.
- the stem has a shank and two connecting portions at opposite ends of the shank, one of the two connecting portions connected to the frame of the drain body.
- the shank has a chamber therein, at least one first aperture defined in a side of the shank, and at least one second aperture opposite to the first aperture.
- the first aperture and the second aperture each communicates with the chamber of the shank.
- the stopper is configured to seal the drain passage of the drain body, and has a tube extending therefrom. The tube is movably mounted around the stem so that the stopper is axially movable relative to the drain body.
- the torsion spring is disposed in the chamber of the shank.
- the torsion spring has two ends laterally engaged in the first aperture and the second aperture of the shank, and protruded from an outer periphery of the shank to abut against an inner wall of the tube of the stopper.
- each of the connecting portions of the stem defines an external thread at an outer periphery thereof.
- the frame of the drain body has a threaded hole in a center thereof for being connected with the respective connecting portion of the stem.
- the torsion spring has a coil portion and two hook portions extending from two ends of the coil portion. The two hook portions are slightly narrower than the first aperture and the second aperture of the shank, and the two hook portions are partly received in the first aperture and the second aperture of the shank respectively.
- the stopper further has a knob at a top thereof and a flange defined between the tube and the knob.
- the shank of the stem defines a lock hole in the outer periphery thereof. A bolt is fastened in the lock hole.
- the tube of the stopper defines a slot therethrough for accommodating the bolt.
- FIG. 1 is a perspective view of a drain apparatus in accordance with a preferred embodiment of the present invention
- FIG. 2 is an exploded perspective view of the drain apparatus shown in FIG. 1 ;
- FIG. 3 is a perspective view of a stem of the drain apparatus shown in FIG. 2 , wherein two torsion springs are disposed in the stem;
- FIG. 4 is a cross-sectional view of the drain apparatus along line IV-IV of FIG. 1 ;
- FIG. 5 is a cross-sectional view of the drain apparatus along line V-V of FIG. 1 ;
- FIG. 6 illustrates that a stopper is raised relative to a drain body.
- a drain apparatus in accordance with a preferred embodiment of the present invention comprises a drain body 1 , a stopper 2 , a stem 3 and two torsion springs 4 .
- the drain body 1 has a drain passage 11 therethrough and a frame 12 radially extending across the drain passage 11 .
- the stem 3 has a shank 31 and two connecting portions 32 at opposite ends of the shank 31 .
- One of the two connecting portions 32 is connected to the frame 12 of the drain body 1 .
- the shank 31 has a chamber 311 therein, two first apertures 312 defined in a side of the shank and spaced a distance apart, and two second apertures 313 defined in opposite side of the shank 31 and corresponding to the two first apertures 312 .
- the two first apertures 312 and the two second apertures 313 each communicates with the chamber 311 of the shank 31 .
- the stopper 2 is configured to seal the drain passage 11 of the drain body 1 , and having a tube 21 extending therefrom.
- the tube 21 is movably mounted around the stem 3 so that the stopper 2 is axially movable relative to the drain body 1 .
- the two torsion springs 4 are disposed in the chamber 311 of the shank 31 .
- Each of the two torsion springs 4 has two ends laterally engaged in the respective first aperture 312 and the respective second aperture 313 of the shank 31 , and protruded from an outer periphery of the shank 31 to abut against an inner wall of the tube 21 of the stopper 2 .
- the two torsion springs 4 are configured to increase a friction force between the inner wall of the tube 21 of the stopper 2 and the shank 31 of the stem 3 .
- each of the connecting portions 32 of the stem 3 defines an external thread 321 at an outer periphery thereof.
- the frame 12 of the drain body 1 has a threaded hole 121 in a center thereof for being connected with the respective connecting portion 32 of the stem 3 so that the tube 21 of the stopper 2 is axially movable relative to the drain body 1 , as shown in FIGS. 5-6 .
- each torsion spring 4 has a coil portion 41 and two hook portions 42 extending from two ends of the coil portion 41 , as shown in FIG. 2 .
- a bending portion 43 is defined between the respective loop portion 42 and the coiling portion 41 .
- the two hook portions 42 are slightly narrower than the respective first aperture 312 and the respective second aperture 313 of the shank 31 , so that the two hook portions 42 of each torsion spring 4 could be protruded from the outer periphery of the shank 31 ; meanwhile, the two hook portions 42 are respective and partly received in the respective first aperture 312 and the respective second aperture 313 of the shank 31 .
- the stopper 2 further has a knob 22 at a top thereof and a flange 23 defined between the tube 21 and the knob 22 .
- a gasket 6 is disposed under the flange 23 of the stopper 2 for sealing an opening of the drain passage 11 of the drain body 1 .
- the shank 31 of the stem 3 defines a lock hole 314 in the outer periphery thereof.
- a bolt 5 is fastened in the lock hole 314 .
- the tube 21 of the stopper 2 defines a slot 211 therethrough for accommodating the bolt 5 . Therefore, the stopper 2 could be positioned between an open position and a close position, as shown in FIGS. 5-6 .
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
A drain apparatus includes a drain body, a stem, a stopper and at least one torsion spring. The drain body has a drain passage therethrough and a frame radially extending across the drain passage. The stem has a shank and one end connected to the frame. The shank has a chamber, at least one first aperture and at least one second aperture opposite to the first aperture. The stopper is configured to seal the drain passage of the drain body, and has a tube extending therefrom. The tube of the stopper is movably mounted around the stem. The torsion spring is disposed in the chamber of the shank. The torsion spring has two ends laterally engaged in the first aperture and the second aperture of the shank to abut against an inner wall of the tube of the stopper.
Description
- 1. Field of the Invention
- The present invention relates to a drain apparatus, and more particularly to a stem assembly of a drain apparatus.
- 2. Description of Related Art
- As discloses in U.S. Pat. No. 4,597,112, a conventional drain apparatus has an annular body and a closure member which may be seated against the inlet end of a drain passage through the body. A stem extends from the closure member through a guide element within the drain passage and a spring acts between the stem and guide element to apply sealing pressure to the seated closure member. The closure member may be manually pulled outwardly from the body against the force of the spring and turned angularly to latch the member at an open position when fluid is to be drained. The positive sealing force generated by the spring minimizes or avoids leakage under conditions where the forces of gravity and pressure from overlying liquid may be inadequate for the purpose.
- There are still some shortcomings of the conventional drain apparatus, such as elastic fatigue of the spring may be occurred during a long-term utilization.
- The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional drain apparatus.
- The main objective of the present invention is to provide an improved stem assembly of a drain apparatus.
- To achieve the objective, a drain apparatus comprises a drain body, a stopper, a stem and at least one torsion spring. The drain body has a drain passage therethrough and a frame radially extending across the drain passage. The stem has a shank and two connecting portions at opposite ends of the shank, one of the two connecting portions connected to the frame of the drain body. The shank has a chamber therein, at least one first aperture defined in a side of the shank, and at least one second aperture opposite to the first aperture. The first aperture and the second aperture each communicates with the chamber of the shank. The stopper is configured to seal the drain passage of the drain body, and has a tube extending therefrom. The tube is movably mounted around the stem so that the stopper is axially movable relative to the drain body.
- Specifically, the torsion spring is disposed in the chamber of the shank. The torsion spring has two ends laterally engaged in the first aperture and the second aperture of the shank, and protruded from an outer periphery of the shank to abut against an inner wall of the tube of the stopper.
- Moreover, each of the connecting portions of the stem defines an external thread at an outer periphery thereof. The frame of the drain body has a threaded hole in a center thereof for being connected with the respective connecting portion of the stem. The torsion spring has a coil portion and two hook portions extending from two ends of the coil portion. The two hook portions are slightly narrower than the first aperture and the second aperture of the shank, and the two hook portions are partly received in the first aperture and the second aperture of the shank respectively. The stopper further has a knob at a top thereof and a flange defined between the tube and the knob. The shank of the stem defines a lock hole in the outer periphery thereof. A bolt is fastened in the lock hole. The tube of the stopper defines a slot therethrough for accommodating the bolt.
- Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
-
FIG. 1 is a perspective view of a drain apparatus in accordance with a preferred embodiment of the present invention; -
FIG. 2 is an exploded perspective view of the drain apparatus shown inFIG. 1 ; -
FIG. 3 is a perspective view of a stem of the drain apparatus shown inFIG. 2 , wherein two torsion springs are disposed in the stem; -
FIG. 4 is a cross-sectional view of the drain apparatus along line IV-IV ofFIG. 1 ; -
FIG. 5 is a cross-sectional view of the drain apparatus along line V-V ofFIG. 1 ; and -
FIG. 6 illustrates that a stopper is raised relative to a drain body. - Referring to
FIGS. 1-3 , a drain apparatus in accordance with a preferred embodiment of the present invention comprises adrain body 1, astopper 2, astem 3 and twotorsion springs 4. Thedrain body 1 has adrain passage 11 therethrough and aframe 12 radially extending across thedrain passage 11. Thestem 3 has ashank 31 and two connectingportions 32 at opposite ends of theshank 31. One of the two connectingportions 32 is connected to theframe 12 of thedrain body 1. Theshank 31 has achamber 311 therein, twofirst apertures 312 defined in a side of the shank and spaced a distance apart, and twosecond apertures 313 defined in opposite side of theshank 31 and corresponding to the twofirst apertures 312. The twofirst apertures 312 and the twosecond apertures 313 each communicates with thechamber 311 of theshank 31. Thestopper 2 is configured to seal thedrain passage 11 of thedrain body 1, and having atube 21 extending therefrom. Thetube 21 is movably mounted around thestem 3 so that thestopper 2 is axially movable relative to thedrain body 1. - As shown in
FIG. 3 , the twotorsion springs 4 are disposed in thechamber 311 of theshank 31. Each of the twotorsion springs 4 has two ends laterally engaged in the respectivefirst aperture 312 and the respectivesecond aperture 313 of theshank 31, and protruded from an outer periphery of theshank 31 to abut against an inner wall of thetube 21 of thestopper 2. The twotorsion springs 4 are configured to increase a friction force between the inner wall of thetube 21 of thestopper 2 and theshank 31 of thestem 3. - Referring to
FIGS. 2-3 , each of the connectingportions 32 of thestem 3 defines anexternal thread 321 at an outer periphery thereof. Theframe 12 of thedrain body 1 has a threadedhole 121 in a center thereof for being connected with the respective connectingportion 32 of thestem 3 so that thetube 21 of thestopper 2 is axially movable relative to thedrain body 1, as shown inFIGS. 5-6 . - Specifically, each
torsion spring 4 has acoil portion 41 and twohook portions 42 extending from two ends of thecoil portion 41, as shown inFIG. 2 . Abending portion 43 is defined between therespective loop portion 42 and thecoiling portion 41. Wherein, the twohook portions 42 are slightly narrower than the respectivefirst aperture 312 and the respectivesecond aperture 313 of theshank 31, so that the twohook portions 42 of eachtorsion spring 4 could be protruded from the outer periphery of theshank 31; meanwhile, the twohook portions 42 are respective and partly received in the respectivefirst aperture 312 and the respectivesecond aperture 313 of theshank 31. - Furthermore, as shown in
FIGS. 1-2 , thestopper 2 further has aknob 22 at a top thereof and aflange 23 defined between thetube 21 and theknob 22. Agasket 6 is disposed under theflange 23 of thestopper 2 for sealing an opening of thedrain passage 11 of thedrain body 1. As shown inFIG. 4 and referring toFIG. 2 , theshank 31 of thestem 3 defines alock hole 314 in the outer periphery thereof. Abolt 5 is fastened in thelock hole 314. Thetube 21 of thestopper 2 defines aslot 211 therethrough for accommodating thebolt 5. Therefore, thestopper 2 could be positioned between an open position and a close position, as shown inFIGS. 5-6 . - Although embodiments of this invention have been fully described with reference to the accompanying drawings, it is to be understood that various modifications can be made by those skilled in the art without departing from the scope of the invention as hereinafter claimed.
Claims (6)
1. A drain apparatus, comprising:
a drain body having a drain passage therethrough and a frame radially extending across the drain passage;
a stem having a shank and two connecting portions at opposite ends of the shank, one of the two connecting portions connected to the frame of the drain body, the shank having a chamber therein, at least one first aperture defined in a side of the shank, and at least one second aperture defined in opposite side of the shank and corresponding to the first aperture, the first aperture and the second aperture each communicating with the chamber of the shank;
a stopper configured to seal the drain passage of the drain body, and having a tube extending therefrom, the tube movably mounted around the stem so that the stopper is axially movable relative to the drain body; and
at least one torsion spring disposed in the chamber of the shank, the torsion spring having two ends laterally engaged in the first aperture and the second aperture of the shank, and protruded from an outer periphery of the shank to abut against an inner wall of the tube of the stopper.
2. The drain apparatus as claimed in claim 1 , wherein each of the connecting portions of the stem defines an external thread at an outer periphery thereof; and the frame of the drain body has a threaded hole in a center thereof for being connected with the respective connecting portion of the stem.
3. The drain apparatus as claimed in claim 1 , wherein the torsion spring has a coil portion and two hook portions extending from two ends of the coil portion; the two hook portions are slightly narrower than the first aperture and the second aperture of the shank; and the two hook portions are partly received in the first aperture and the second aperture of the shank respectively.
4. The drain apparatus as claimed in claim 1 , wherein the stopper further has a knob at a top thereof and a flange defined between the tube and the knob.
5. The drain apparatus as claimed in claim 1 , wherein the shank of the stem defines a lock hole in the outer periphery thereof; a bolt is fastened in the lock hole; and the tube of the stopper defines a slot therethrough for accommodating the bolt.
6. The drain apparatus as claimed in claim 4 further comprising a gasket disposed under the flange of the stopper.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW102214850U TWM469338U (en) | 2013-08-07 | 2013-08-07 | Improved spindle structure of drain |
TW102214850 | 2013-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150040312A1 true US20150040312A1 (en) | 2015-02-12 |
Family
ID=50346834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/242,892 Abandoned US20150040312A1 (en) | 2013-08-07 | 2014-04-02 | Drain apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US20150040312A1 (en) |
TW (1) | TWM469338U (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD757232S1 (en) * | 2015-02-12 | 2016-05-24 | Electrolux Home Products, Inc. | Plug for an auxiliary inlet of a garbage disposal |
USD772163S1 (en) * | 2011-10-26 | 2016-11-22 | Gs Yuasa International Ltd. | Sealing plug for energy storage element |
USD884839S1 (en) * | 2018-02-13 | 2020-05-19 | Wcm Industries, Inc. | Strainer |
US10815652B2 (en) | 2013-03-13 | 2020-10-27 | Wcm Industries, Inc. | Strainer with improved flow |
US20210238833A1 (en) * | 2017-10-26 | 2021-08-05 | Danco, Inc. | Gasket seals for drain closures |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2784963A (en) * | 1956-01-06 | 1957-03-12 | Frank A Bronzo | Vehicle spring member |
US6363544B1 (en) * | 2001-03-20 | 2002-04-02 | Ronald J. Ryan | Spring biased drain closure |
US6490739B1 (en) * | 2001-12-07 | 2002-12-10 | Princeton International Company | Plug for a sink drain |
US20110138527A1 (en) * | 2009-12-16 | 2011-06-16 | Siena Matthew J | Universal drain stopping device with enlarged stopper |
-
2013
- 2013-08-07 TW TW102214850U patent/TWM469338U/en not_active IP Right Cessation
-
2014
- 2014-04-02 US US14/242,892 patent/US20150040312A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2784963A (en) * | 1956-01-06 | 1957-03-12 | Frank A Bronzo | Vehicle spring member |
US6363544B1 (en) * | 2001-03-20 | 2002-04-02 | Ronald J. Ryan | Spring biased drain closure |
US6490739B1 (en) * | 2001-12-07 | 2002-12-10 | Princeton International Company | Plug for a sink drain |
US20110138527A1 (en) * | 2009-12-16 | 2011-06-16 | Siena Matthew J | Universal drain stopping device with enlarged stopper |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD772163S1 (en) * | 2011-10-26 | 2016-11-22 | Gs Yuasa International Ltd. | Sealing plug for energy storage element |
US10815652B2 (en) | 2013-03-13 | 2020-10-27 | Wcm Industries, Inc. | Strainer with improved flow |
USD757232S1 (en) * | 2015-02-12 | 2016-05-24 | Electrolux Home Products, Inc. | Plug for an auxiliary inlet of a garbage disposal |
US20210238833A1 (en) * | 2017-10-26 | 2021-08-05 | Danco, Inc. | Gasket seals for drain closures |
USD884839S1 (en) * | 2018-02-13 | 2020-05-19 | Wcm Industries, Inc. | Strainer |
USD884838S1 (en) * | 2018-02-13 | 2020-05-19 | Wcm Industries, Inc. | Strainer |
USD899567S1 (en) * | 2018-02-13 | 2020-10-20 | Wcm Industries, Inc. | Strainer |
USD899568S1 (en) * | 2018-02-13 | 2020-10-20 | Wcm Industries, Inc. | Strainer |
USD921852S1 (en) | 2018-02-13 | 2021-06-08 | Wcm Industries, Inc. | Strainer |
Also Published As
Publication number | Publication date |
---|---|
TWM469338U (en) | 2014-01-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HOME MORE ENTERPRISE CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:YANG, LI-FEN;REEL/FRAME:032577/0869 Effective date: 20140402 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |