US20080289091A1 - Actuating device for a drain fitting and drain fitting with such an actuating device and method of mounting such a drain fitting - Google Patents

Actuating device for a drain fitting and drain fitting with such an actuating device and method of mounting such a drain fitting Download PDF

Info

Publication number
US20080289091A1
US20080289091A1 US12/124,708 US12470808A US2008289091A1 US 20080289091 A1 US20080289091 A1 US 20080289091A1 US 12470808 A US12470808 A US 12470808A US 2008289091 A1 US2008289091 A1 US 2008289091A1
Authority
US
United States
Prior art keywords
push button
actuating device
cistern
button housing
drain fitting
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
Application number
US12/124,708
Other languages
English (en)
Inventor
Alfred Mahler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geberit International AG
Original Assignee
Geberit Technik AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geberit Technik AG filed Critical Geberit Technik AG
Assigned to GEBERIT TECHNIK AG reassignment GEBERIT TECHNIK AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MAHLER, ALFRED
Publication of US20080289091A1 publication Critical patent/US20080289091A1/en
Assigned to GEBERIT INTERNATIONAL AG reassignment GEBERIT INTERNATIONAL AG MERGER (SEE DOCUMENT FOR DETAILS). Assignors: GEBERIT TECHNIK AG
Abandoned legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
    • E03D5/09—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand
    • E03D5/092—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the hand the flushing element, e.g. siphon bell, being actuated through a lever
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/02—High-level flushing systems
    • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves
    • E03D1/142—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves in cisterns with flushing valves

Definitions

  • the invention relates to an actuating device for a drain fitting of a flushing cistern, having a push button housing, which may be inserted into an opening in a cistern lid, having at least one push button mounted in this push button housing and having a pusher, which may be moved downwards to trigger flushing by actuation of the at least one push button.
  • Actuating devices of this type are known and are suitable in particular for ceramic cisterns, which display significant variations in size due to production conditions. These actuating devices have thus to be constructed in such a way that they may be adapted to different cistern dimensions and in particular to different cistern lid thicknesses. This adaptability requires comparatively great structural complexity and also special, likewise comparatively complex mounting. During servicing the actuating device has accordingly to be demounted and then remounted, which is likewise comparatively complex.
  • An actuating device of the stated type has become known in the prior art from WO 01/46528. This enables adaptation to different sizes of cistern, and additionally enables dual flushing. However, here too mounting of the actuating device is comparatively complex. This also applies to servicing.
  • the object of the invention is to provide an actuating device of the stated type which enables simpler mounting.
  • the actuating device is intended nevertheless to be inexpensive to manufacture and functionally reliable.
  • the push button housing is fastened only to the cistern lid and may be lifted off the at least one push button and the pusher with the cistern lid.
  • the push button housing is not connected fixedly to the at least one push button and the pusher in the mounted state, but rather may be lifted off them. This has the significant advantage that the cistern lid may be simply lifted and then set back in place during mounting and servicing. Mounting is accordingly also simplified, since the at least one push button and the pusher may be checked while the lid is lifted and the lid with the push button housing may be set in place at the end.
  • the push button housing, the push button and the pusher form a separate insert.
  • this insert additionally comprises a guide element, in which the pusher is guided.
  • the insert comprises means for screw-fastening to a yoke of the drain fitting.
  • a screw-fastening enables depth adjustment of the insert, so enabling particularly simple adaptation to different cistern sizes.
  • the guide element may be screwed onto a connecting element.
  • the connecting element in particular connects the guide element to said yoke.
  • the push button housing is connected for rotation to the guide element, such that the insert may be screwed onto the drain fitting using the push button housing as mounting aid.
  • the push button housing serves in this case as a tool for screwing on the insert.
  • the final position of the screwing process is here preferably the final position of the push button housing.
  • the push button housing is thus screwed downwards with said insert when the cistern lid is in place, until for example a collar of the push button housing rests on the top of the cistern lid.
  • the insert has then reached its correct position.
  • the push button housing may then be lifted off with the cistern lid and fastened to the cistern lid for example by means of a nut.
  • the push button housing preferably has an external thread in a lower region.
  • the insert is preferably constructed in such a way that dual flushing is possible.
  • its components comprise one push button for a full flush and a further push button for a partial flush.
  • an actuating device with just one push button is also feasible.
  • the invention further relates to a drain fitting with an actuating device according to the invention.
  • the actuating device is arranged on a yoke of a drain valve of the drain fitting.
  • the actuating device is connected to this yoke by a connecting element.
  • this connecting element has an external thread, onto which a guide element of the actuating device is screwed.
  • the invention further relates to a method of mounting such a drain fitting.
  • FIG. 1 is a partially sectional view of a drain fitting according to the present invention, showing portions of the lid and of the tank of the cistern,
  • FIG. 2 is a view of the actuating device according to the invention
  • FIG. 3 is a plan view of the actuating device according to FIG. 2 .
  • FIG. 4 shows a section through the actuating device along line IV-IV of FIG. 3 .
  • FIG. 5 is a three-dimensional view of the actuating device according to the invention.
  • FIGS. 6 a - 6 d show individual steps during mounting of the actuating device according to the invention.
  • FIG. 1 shows a drain fitting 32 , which is mounted in a flushing cistern 1 and which consists of an actuating device 6 and a float valve 20 .
  • the float valve 20 is inserted into an opening 5 in a cistern tank 3 and fastened by a fastening nut 33 to the bottom of the cistern tank 3 .
  • the float valve 20 comprises a housing 31 , in which an overflow pipe 21 or another suitable closing member is mounted so as to be liftable.
  • the float valve 20 is designed for dual flushing and has to this end an upper float 22 and a lower float 23 .
  • a pull rod 34 is provided, which acts at a lower end on the overflow pipe 21 and which cooperates via an articulated linkage 35 with the actuating device 6 .
  • the linkage 35 is connected by pivots 17 to a yoke 14 , which is connected via two downwardly projecting webs 14 a to the housing 31 .
  • the float valve 20 may also be replaced by another suitable drain valve. In particular, the float valve 20 does not absolutely have to take the form of a dual valve.
  • the actuating device 6 is mounted in an opening 4 ( FIG. 6 a ) in the cistern lid 2 .
  • This opening 4 is preferably a circular opening.
  • the cistern lid 2 here consists for example of ceramic material. As is conventional, it is positioned removably on an upper edge, not shown here, of the cistern tank 3 .
  • the actuating device 6 has a preferably cylindrical push button housing 7 with an upper, outwardly projecting collar 7 a, which in the mounted state rests on the top 36 ( FIG. 6 b ) of the cistern lid 2 .
  • the push button housing 7 has a cylindrical inside 30 and a plurality of recesses 25 at a lower, crown-shaped edge. It is fastened to the cistern lid 2 by a nut 13 , which is screwed onto a thread 24 of the push button housing 7 .
  • a guide element 12 is mounted in the push button housing 7 and, in accordance with FIG. 6 a, comprises an internal thread 27 , which is screwed onto an external thread 28 of a connecting element 15 .
  • the screw-in depth of the guide element 17 is adjustable relative to the connecting element 15 .
  • a spring 10 is supported on the guide element 12 , which spring is tensioned against the push buttons 8 and 9 .
  • a pusher 11 is arranged inside the connecting element 15 , which pusher 11 may be moved downwards by the push buttons 8 and 9 in order to swivel a two-armed lever 16 of the linkage 35 .
  • the pusher 11 consists of a pin 40 , which comprises a thread 41 on the outside ( FIG. 4 ) and which is screwed into a sleeve 37 , which according to FIG. 6 a has a corresponding thread 42 .
  • the pin 40 is connected at the top end to the push button 8 and is moved downwards thereby to trigger flushing.
  • the sleeve 37 extends substantially over the entire length of the connecting element 15 , as shown for example in FIG. 1 . If the lever 16 is swivelled about the pivot 17 , a connecting rod 18 connected to the lever 16 is lifted via a pivot 19 . This connecting rod 18 is connected to the pull rod 34 , which thus lifts the overflow pipe 21 in a manner known per se and thus triggers flushing.
  • the spring 10 moves the push buttons 8 and 9 back into the starting position shown in FIG. 1 . In the case of a full flush, this applies accordingly only to the push button 8 .
  • the small push button 9 mounted in the push button 8 then remains in the starting position.
  • the guide element 12 is connected to the yoke 14 via the connecting element 15 . It is thus stationary during actuation. According to FIG. 1 , the connecting element 15 is inserted non-rotatably with its bottom end into an opening 38 in a web 39 of the yoke 14 . The guide element 12 may thus be screwed onto the connecting element 15 , without the latter turning. As already mentioned, different screw-in depths are possible for the guide element 12 . FIG. 1 shows a middle screw-in depth. The guide element 12 may thus also be screwed further down or up. This is dependent on the thickness and position of the cistern lid 2 .
  • the guide element 12 is arranged within the push button housing 7 but is not firmly connected thereto. This likewise applies to the two push buttons 8 and 9 .
  • the cistern lid 2 may therefore be lifted off the drain fitting 32 together with the push button housing 7 and the nut 13 .
  • the push buttons 8 and 9 , the pusher 11 and the sleeve 37 then thus remain mounted fixedly on the connecting element 15 or the yoke 14 .
  • the two push buttons 8 and 9 work even when the lid 2 has been lifted off. Flushing may thus be triggered even when the lid 2 has been lifted off and thus without push button housing 7 .
  • the push button housing 7 , the push buttons 8 and 9 , the spring 10 , the guide element 12 and the pusher 11 form a mounting unit 29 , which is prefabricated and which may be connected detachably as a unit to the float valve 20 .
  • FIG. 6 a shows the cistern 1 with mounted float valve 20 and lid 2 in place thereon.
  • the push button housing 7 forms a mounting unit 29 with the push buttons 8 and 9 , the guide element 12 and the pusher 11 together with the spring 10 .
  • This mounting unit 29 is likewise illustrated in FIGS. 2 and 5 .
  • the guide element 12 has at least one cam-type dog 26 , which engages in one of the recesses 25 . In principle, a plurality of such dogs 26 may also be provided. These then each engage from below in a recess 25 .
  • the mounting unit 29 is inserted from above into the opening 4 and screwed onto the thread 28 of the connecting element 15 by turning the push button housing 7 , until the collar 7 a rests on the top 36 of the cistern lid 2 as shown in FIG. 6 b. Due to the engagement of the dog 26 with the push button housing 7 , the guide element 12 is accordingly also turned when the push button housing 7 is turned. Simultaneously with the guide element 12 , the pin 40 is also turned and screwed into the sleeve 37 . Turning of the mounting unit 29 by means of the push button housing 7 thus simultaneously connects the guide element 12 to the yoke 14 and the pin 40 to the sleeve 37 . Both connections are depth-adjustable for the purpose of adaptation to the cistern lid 2 .
  • the lid 2 is lifted off the cistern tank 3 with the push button housing 7 , as shown in FIG. 6 c.
  • the nut 13 is then screwed onto the push button housing 7 from the underside of the lid 2 and thus the push button housing 7 is firmly connected to the cistern lid 2 .
  • the cistern lid 2 may then be set back in place with the push button housing 7 .
  • the drain fitting 32 is thus mounted in accordance with FIG. 6 d.
  • the cistern lid 2 may be straightforwardly lifted off the cistern tank 3 .
  • the push button housing 7 then remains on the cistern lid 2 .
  • the drain fitting is fully functional even when the cistern lid 2 has been lifted off.
  • the flushing function may thus be checked while the cistern lid 2 is off.
  • the cistern lid 2 may be set back in place, after which the cistern 1 is again functional.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Making Paper Articles (AREA)
  • Cartons (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
US12/124,708 2007-05-25 2008-05-21 Actuating device for a drain fitting and drain fitting with such an actuating device and method of mounting such a drain fitting Abandoned US20080289091A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07405153.3 2007-05-25
EP07405153A EP1995386B1 (fr) 2007-05-25 2007-05-25 Dispositif de fixation pour une garniture de purge et garniture de purge dotée d'un tel dispositif de fixation tout comme procédé de montage d'une telle garniture de purge

Publications (1)

Publication Number Publication Date
US20080289091A1 true US20080289091A1 (en) 2008-11-27

Family

ID=38544111

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/124,708 Abandoned US20080289091A1 (en) 2007-05-25 2008-05-21 Actuating device for a drain fitting and drain fitting with such an actuating device and method of mounting such a drain fitting

Country Status (11)

Country Link
US (1) US20080289091A1 (fr)
EP (1) EP1995386B1 (fr)
KR (1) KR20080103902A (fr)
CN (1) CN101311433B (fr)
AT (1) ATE483073T1 (fr)
AU (1) AU2008201546A1 (fr)
CA (1) CA2629109A1 (fr)
DE (1) DE502007005199D1 (fr)
ES (1) ES2350863T3 (fr)
NZ (1) NZ568251A (fr)
SG (1) SG148103A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321285A (zh) * 2013-07-12 2013-09-25 深圳市博电电子技术有限公司 一种用于马桶冲水的爆破型排水阀
US20140223656A1 (en) * 2011-12-22 2014-08-14 Lab (Xiamen) Sanitary Fittings Inc. Soft-touch double-drain valve

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2552663T3 (es) 2012-12-18 2015-12-01 Geberit International Ag Dispositivo de activación para una grifería de descarga
PT2767639T (pt) * 2013-02-15 2018-07-17 Geberit Int Ag Guarnição de descarga para um autoclismo
ES1181533Y2 (es) * 2017-03-30 2021-12-17 Hidrotecnoagua S L Dispositivo perfeccionado para el montaje de un descargador de cisternas
CN107326982B (zh) * 2017-07-21 2023-05-16 厦门瑞尔特卫浴科技股份有限公司 一种线控转换盒及具有其的排水阀

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5265283A (en) * 1990-02-23 1993-11-30 Societe Phoceenne De Matieres Plastiques S.P.M.P. S.A. Flushing mechanism having a submersible float controlled by a push button
US5265282A (en) * 1990-08-29 1993-11-30 Geberit Ag Actuating device on the drain valve of a flush tank
US5305474A (en) * 1990-05-17 1994-04-26 Societe Phoceene De Matieres Plastiques, Spmp Stoppable flushing mechanism with assured minimal flow
US6081938A (en) * 1998-09-14 2000-07-04 Fluidmaster, Inc. Dual-flush valve
US6094753A (en) * 1997-11-04 2000-08-01 Dal-Georg Rost & Sohne Sanitaramaturen Gmbh Flush valve with partial-flush function
US6163897A (en) * 1997-04-11 2000-12-26 Siamp Cedap Self-adjusting control device for flushing system mechanism
US20020112282A1 (en) * 1998-09-14 2002-08-22 Joseph Han Advanced dual-flush valve
US6920649B2 (en) * 2001-01-23 2005-07-26 Societe Etex De Recherches Techniques, Sert Flushing mechanism for toilet tank

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1947997U (de) 1966-09-02 1966-10-13 W J Stokvis Konink Fabriek Van Betaetigungsvorrichtung fuer spuelkasten.
CH665865A5 (de) 1985-03-08 1988-06-15 Geberit Ag Spuelkasten mit einer betaetigungsvorrichtung fuer das ablaufventil.
CN2260829Y (zh) * 1996-02-13 1997-08-27 中山市榄源洁具实业有限公司 便于安装的在低水箱盖上操作的按钮装置
DE20018835U1 (de) 1999-12-21 2001-02-08 Geberit Technik Ag Betätigungseinrichtung für das Ablaufventil eines Spülkastens
CN2441880Y (zh) * 2000-08-02 2001-08-08 厦门瑞尔特卫浴工业有限公司 一种排量可变式便器水箱排水阀
CN2434350Y (zh) * 2000-08-04 2001-06-13 唐山惠达陶瓷(集团)股份有限公司 双挡排水量排水阀
CN2525136Y (zh) * 2001-12-20 2002-12-11 陶建新 无塞双水量冲水器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5265283A (en) * 1990-02-23 1993-11-30 Societe Phoceenne De Matieres Plastiques S.P.M.P. S.A. Flushing mechanism having a submersible float controlled by a push button
US5305474A (en) * 1990-05-17 1994-04-26 Societe Phoceene De Matieres Plastiques, Spmp Stoppable flushing mechanism with assured minimal flow
US5265282A (en) * 1990-08-29 1993-11-30 Geberit Ag Actuating device on the drain valve of a flush tank
US6163897A (en) * 1997-04-11 2000-12-26 Siamp Cedap Self-adjusting control device for flushing system mechanism
US6094753A (en) * 1997-11-04 2000-08-01 Dal-Georg Rost & Sohne Sanitaramaturen Gmbh Flush valve with partial-flush function
US6081938A (en) * 1998-09-14 2000-07-04 Fluidmaster, Inc. Dual-flush valve
US20020112282A1 (en) * 1998-09-14 2002-08-22 Joseph Han Advanced dual-flush valve
US6442772B2 (en) * 1998-09-14 2002-09-03 Fluidmaster, Inc. Advanced dual-flush valve
US6920649B2 (en) * 2001-01-23 2005-07-26 Societe Etex De Recherches Techniques, Sert Flushing mechanism for toilet tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140223656A1 (en) * 2011-12-22 2014-08-14 Lab (Xiamen) Sanitary Fittings Inc. Soft-touch double-drain valve
US9476192B2 (en) * 2011-12-22 2016-10-25 Lab (Xiamen) Sanitary Fittings Inc Soft-touch double-drain valve
CN103321285A (zh) * 2013-07-12 2013-09-25 深圳市博电电子技术有限公司 一种用于马桶冲水的爆破型排水阀

Also Published As

Publication number Publication date
CA2629109A1 (fr) 2008-11-25
CN101311433A (zh) 2008-11-26
EP1995386B1 (fr) 2010-09-29
SG148103A1 (en) 2008-12-31
AU2008201546A1 (en) 2008-12-11
ES2350863T3 (es) 2011-01-27
KR20080103902A (ko) 2008-11-28
NZ568251A (en) 2009-09-25
ATE483073T1 (de) 2010-10-15
DE502007005199D1 (de) 2010-11-11
EP1995386A1 (fr) 2008-11-26
CN101311433B (zh) 2011-05-11

Similar Documents

Publication Publication Date Title
US20080289091A1 (en) Actuating device for a drain fitting and drain fitting with such an actuating device and method of mounting such a drain fitting
JP6501062B2 (ja) 排水弁装置、この排水弁装置を備えた洗浄水タンク装置、及び、この洗浄水タンク装置を備えた水洗大便器
CA2049388C (fr) Dispositif de commande pour vanne de vidange de reservoir de chasse
US7984521B2 (en) Device for actuating the drainage valve of a sanitary article
US20080295238A1 (en) Dual Flush Toilet Mechanism
US20100024114A1 (en) Flush valve structure for a toilet tank
US5657494A (en) Toilet flushing device
US8205276B2 (en) Pressurized dual flush system
DK1964988T3 (en) Electromechanical flushing device
US20070204393A1 (en) Automatic Flushing Device With Magnetic Valve
KR101576650B1 (ko) 도기 일체형 비데의 물내림장치
AU777009B2 (en) Actuating device for the drain valve of a cistern
EP3382114B1 (fr) Un dispositif pour connecter un bouton-poussoir extérieur à un mécanisme de chasse d'eau de réservoir de chasse
LU86333A1 (de) Spuelkasten
CA3106658A1 (fr) Levier de declenchement a engrenages comportant un mecanisme d'embrayage
US9528253B2 (en) Controller assembly for automatic flush valve
AU754613B2 (en) Flushing armature for a flushing cistern
EP3363957B1 (fr) Mécanisme d'alimentation et de chasse d'eau
KR200407166Y1 (ko) 절수기능이 구비된 변기의 일체형 자동물내림 장치
DK1593787T3 (en) Mechanism for flushing a toilet
EP1460188B1 (fr) Dispositif de chasse pour un réservoir de chasse d'eau
CN211113934U (zh) 一种进排水联动控制机构及坐便器
KR200407167Y1 (ko) 상부버튼형 변기의 일체형 자동물내림/절수 장치
PL1795662T3 (pl) Urządzenie do uruchamiania zaworu wylotowego spłuczki
US5588157A (en) Toilet valve seat actuator assembly

Legal Events

Date Code Title Description
AS Assignment

Owner name: GEBERIT TECHNIK AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MAHLER, ALFRED;REEL/FRAME:020980/0106

Effective date: 20080225

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: GEBERIT INTERNATIONAL AG, SWITZERLAND

Free format text: MERGER;ASSIGNOR:GEBERIT TECHNIK AG;REEL/FRAME:028769/0177

Effective date: 20090211