WO2006028324A1 - Structure de buse pour lave-vaisselle - Google Patents

Structure de buse pour lave-vaisselle Download PDF

Info

Publication number
WO2006028324A1
WO2006028324A1 PCT/KR2005/001545 KR2005001545W WO2006028324A1 WO 2006028324 A1 WO2006028324 A1 WO 2006028324A1 KR 2005001545 W KR2005001545 W KR 2005001545W WO 2006028324 A1 WO2006028324 A1 WO 2006028324A1
Authority
WO
WIPO (PCT)
Prior art keywords
inlet port
flap
gasket
nozzle
check valve
Prior art date
Application number
PCT/KR2005/001545
Other languages
English (en)
Inventor
Gab-Kyu Hwang
Original Assignee
Lg Electronics, Inc.
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 Lg Electronics, Inc. filed Critical Lg Electronics, Inc.
Priority to DE112005000062T priority Critical patent/DE112005000062B4/de
Priority to US10/568,224 priority patent/US20080163904A1/en
Publication of WO2006028324A1 publication Critical patent/WO2006028324A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/50—Racks ; Baskets
    • A47L15/508—Hydraulic connections for racks
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays

Definitions

  • the present invention relates to a dish washer, and more particularly, to a nozzle structure of a dish washer that is designed to prevent backflow when water is supplied to a nozzle from a water guide.
  • a dish washer is one of electronic appliances, which can wash dishes by removing garbage from the dishes using water sprayed through a spraying nozzle from a sump installed under a tub.
  • a typical dish washer includes a tub, a sump installed under the tub, a water guide connected to the sump, and an upper nozzle detachably coupled to the water guide from a center of the tub.
  • the upper nozzle is located under a rack of the dish washer. The upper nozzle is detached from the water guide when the rack is extended outwardly, and it is coupled to the water guide again when the rack is retracted inwardly.
  • the rack is stably kept in the retracted position by the door, and the upper nozzle maintains the coupling with the water guide.
  • a seal is disposed between the upper nozzle and the water guide. Also, a check valve is installed in the upper nozzle to prevent backflow from the nozzle to the water guide.
  • the check valve includes a flap, a hinge for rotational motion of the flap, a support structure for supporting both end of the hinge, and a valve body defining a water passage to which the flap rotatably installed.
  • the present invention is directed to a nozzle structure of a dish washer that substantially obviates one or more of the problems due to limitations and dis ⁇ advantages of the related art.
  • An object of the present invention is to provide a nozzle structure of a dish washer, in which a structure of check valve is designed to simplify the assembly process of the check valve and reduce the manufacturing cost of the check valve.
  • Another object of the present invention is to provide a nozzle structure of a dish washer, in which a structure of check valve is designed to simplify the assembly process of the dish washer and reduce the manufacturing cost of the dish washer.
  • a nozzle structure of a dish washer including: a nozzle holder; a gasket unit mounted on an end of the nozzle holder and including at least one inlet port; a flap support unit protruded from a front of the gasket unit; and a check valve flap rotatably coupled to the flap support unit.
  • a nozzle structure of a dish washer including: a nozzle holder; a back cover coupled to an end of the nozzle holder; a gasket fitted to a front of the back cover; a gasket support coupled to a front of the gasket and including an upper inlet port, a lower inlet port, and a flap support unit formed between the upper inlet port and the lower inlet port; and a check valve flap coupled to the flap support unit to selectively open and close the lower inlet port.
  • a nozzle structure of a dish washer including: a nozzle holder; a nozzle rotatably coupled to one end of the nozzle holder; a gasket unit mounted on the other end of the nozzle holder to prevent leakage of washing water; a check valve flap mounted on a front of the gasket unit; a flap support unit formed on a front of the gasket unit to support each side of the check valve flap; and a water guide to which the other end of the nozzle holder is detachably coupled.
  • the check valve can be easily and simply assembled and installed into the upper nozzle.
  • the check valve can have simple structure owing to the nozzle structure, thereby reducing the manufacturing cost of the check valve.
  • the check valve has simple structure, it can prevent leakage of washing water more securely.
  • FlG. 1 is a side sectional view of a dish washer equipped with a nozzle according to the present invention.
  • FlG. 2 is a cut-away view of a dish washer in which a water guide to be coupled with a nozzle is shown according to the present invention.
  • FlG. 3 is an exploded perspective view showing a coupling of a nozzle holder and a check valve according to the present invention.
  • FlG. 4 is a side view showing a check valve installed in a nozzle holder according to the present invention.
  • FlG. 1 is a side sectional view of a dish washer equipped with a nozzle according to the present invention.
  • the dish washer 100 having a nozzle of the present invention includes an enclosing cabinet 111, a tub 110 installed in the cabinet 111 to define a dish washing chamber, a door 101 installed in front of the tub 110 to open and close the dish washing chamber, and a sump 170 installed on a bottom center of the tub 110 to store washing water.
  • the dish washer 100 includes a pump 180 and a motor 190.
  • the pump 180 is connected to the sump 170 to pump washing water contained in the sump 170, and the motor 190 is connected to the pump 180 from a lower side to drive the pump 180.
  • the dish washer 100 includes a water guide 140 defining a flowing path of the washing water pumped out by the pump 180, a lower nozzle 160 mounted on a top of the sump 170 to spray the washing water upward in the tub 110, an upper nozzle 150 extending toward a center of the tub 110 from the water guide 140, and a top nozzle 155 mounted on the ceiling of the tub 110 to spray the washing water downward.
  • the upper nozzle 150 is rotatably mounted on an end of a nozzle holder 151 that is connected with the water guide 140.
  • a check valve (refer to 200 in FlG. 3) of the present invention is installed to prevent blackflow and leakage.
  • the dish washer 100 includes an upper rack 120 mounted above the upper nozzle 150 and a lower rack 130 mounted between the lower nozzle 160 and the upper nozzle 150.
  • the upper rack 120 is supported on a rail (not shown) provided on an inner wall of the tub 110 and is slidable frontward and rearward.
  • the nozzle holder 151 is fixed on a bottom of the upper rack 120, such that the nozzle holder 151 moves frontward and rearward together with the upper rack 120.
  • the nozzle holder 151 is detached from the water guide 140 when the upper rack 120 is pulled out, and it is attached to the water guide 140 when the upper rack
  • a user first opens the door 101 and pulls the upper and/or lower racks 120 and/or
  • the washing water is alternately pumped to the lower nozzle 160 and the water guide 140.
  • the washing water pumped to the water guide 140 is directed to the top nozzle 155 and the upper nozzle 150 and is then sprayed into the tub 110 to wash the dishes loaded in the upper and lower racks 120 and 130.
  • the top nozzle 155 is designed to spray the washing water downward while the upper nozzle 150 is designed to spray the washing water upward, thereby washing the dishes loaded in the upper rack 120.
  • the lower nozzle 160 is designed to spray the washing water upward to washing the dishes loaded in the lower rack 130.
  • the upper nozzle 150 may be further provided at a bottom with spraying holes so that the washing water can be sprayed upward and downward, thereby simultaneously washing both sides of the dishes loaded in both the upper and lower racks 120 and 130.
  • a filter (not shown) removes particles from the washing water collected in the sump 170.
  • a drain pump (not shown) removes particles from the washing water collected in the sump 170.
  • FIG. 2 is a cut-away view of a dish washer in which a water guide to be coupled with a nozzle is shown according to the present invention.
  • the water guide 140, to which a check valve of the present invention is to be coupled is U-shaped and disposed along an inner surface of the tub
  • the water guide 140 is formed with a nozzle holder connecting portion 143 at a middle for coupling with the nozzle holder 151.
  • the nozzle holder connecting portion 143 includes support bosses 142 and a water outlet port 141. When assembled, the support bosses 142 couples with a check valve (refer to 200 in FlG. 3).
  • the water outlet port 141 is formed under the support bosses 142 with a predetermined diameter and height.
  • washing water is supplied to the nozzle holder 151 from the water guide 140 through the water outlet port 141.
  • FlG. 3 is an exploded perspective view showing a coupling of a nozzle holder and a check valve according to the present invention.
  • the check valve 200 couples to an end of the nozzle holder 151, and a back cover 300 couples to a back of the check valve 200 to prevent detachment of the check valve 200 from the nozzle holder 151.
  • the check valve 200 includes a gasket unit having a gasket support 220 and a gasket 210.
  • the gasket support 220 is inserted into the nozzle holder 151 with its front facing the nozzle holder 151.
  • the gasket 210 is made of rubber and fitted to a back of the gasket support 220 to prevent leakage.
  • the gasket support 220 includes an upper inlet port 230 and a lower inlet port 240 to introduce washing water into the nozzle holder 151. Since the water outlet port 141 of the water guide 140 is selectively coupled to the upper inlet port 230 and the lower inlet port 240, the inlet ports 230 and 240 may have the same diameter. The selective coupling between the water outlet port 141 and the inlet ports 230 and 240 will be fully described later.
  • the check valve 200 further includes a rubber flap 250 pivotably installed between the upper inlet port 230 and the lower inlet port 240.
  • the flap 250 is sized to fully cover the lower inlet port 240.
  • the flap 250 couples with flap support unit that are protruded from a front of the gasket support 220.
  • the flap support unit includes flap support arms 260 having protrusions 261.
  • the flap support arms 260 face each other and are located a predetermined distance from each other to support both sides of the flap 250.
  • the Protrusions 261 are inwardly extended from inner sides of the flap support arms 260 to face each other.
  • the flap 250 includes a protrusion receiving portion such as a coupling hole 251 defined in an upper end to receive the protrusions 261 of the flap support arms 260.
  • the coupling hole 251 may be a through hole with a predetermined size.
  • the protrusion receiving portion of the flap 250 may be coupling depressions defined in both upper sides to receive the protrusions 261. That is, the coupling depressions may be two in number and properly positioned to receive the protrusions 261.
  • the flap 250 can be pivotably fixed to the gasket support 220 by the flap support arms 260 and the coupling hole 251, an additional hinge pin is not required.
  • the lower end of the lower inlet port 240 is extended forward more than that of the upper inlet port 230. That is, the end of the lower inlet port 240 is angled with respect to the gasket support 220. Therefore, when the flap 250 closes the lower inlet port 240, the flap 250 is suspended at an angle to the vertical, such that the contact between the flap 250 and the lower inlet port 240 can be more securely maintained by the weight of the flap 250 without a gap. If the end of the lower inlet port 240 is not sloped, the lower inlet port 240 may not be securely closed by the flap 250. For example, if the dish washer 100 is placed on a sloped surface, a gap may be defined between the flap 250 and the lower inlet port 240 when the flap 250 closes the lower inlet port 240.
  • the back cover 300 includes a first hole 310 at an upper portion, a third hole 330 at a lower portion, and a second hole 320 between the first and the second holes 310 and 330.
  • the holes 310, 320, and 330 may have the same diameter.
  • the first hole 310 couples with one of the support bosses 142 of the water guide 140, the second hole 320 communicates with the upper inlet port 230, and the third hole 330 communicates with the lower inlet port 240.
  • the nozzle holder 151 can be coupled to the water guide 140 at different heights.
  • the first hole 310 is fitted to the higher of the support bosses 141, and therefore the water outlet port 141 of the water guide 140 communicates with the third hole 330 and the lower inlet port 240.
  • the first hole 310 is fitted to the lower of the support bosses 141, and therefore the water outlet port 141 of the water guide 140 communicates with the second hole 320 and the lower inlet port 230.
  • FIG. 4 is a side view showing a check valve installed in a nozzle holder according to the present invention.
  • the check valve 200 is installed at an end of the nozzle holder
  • the lower inlet port 240 communicates with the nozzle holder 151.
  • the nozzle holder 151 is coupled to the water guide 140 with the lower inlet port
  • washing water flows from the water outlet port 141 to the lower inlet port 240, and pushes the flap 250 to rotate it about the flap support arms 260 in an upward direction.
  • the flap 250 is fully rotated by the washing water, the lower edge of the flap 250 makes contact with the inner wall of the nozzle holder 151 to prevent the washing air from reversely flowing toward the upper inlet port 230. Therefore, the washing water can flow from the water outlet port 141 to the nozzle holder 151 through the lower inlet port 240 without backflow through the upper inlet port 230.
  • the coupling of the nozzle holder 151 to the water guide 140 at a relatively lower position will now be described.
  • the nozzle holder 151 is coupled to the water guide 140 with the upper inlet port 230 communicating with the water outlet port 141. Washing water flows from the water outlet port 141 to the nozzle holder 151 through the upper inlet port 230, and pushes down the flap 250 to close the lower inlet port 240. That is, the flow of the washing water presses the flap 250 against the lower inlet port 240 and thereby the lower inlet port 240 can be securely closed to prevent backflow therethrough. The washing water further flows from the nozzle holder 151 to the upper nozzle 130.
  • the flap 250 is rotatably coupled with the protrusions 261 of the flap support arms 260.
  • the position of the flap 250 is determined depending on which inlet port communicates with the water outlet 141.
  • the check valve 200 does not require a hinge shaft for coupling the flap 250 with the flap support arms 260. That is, by forming the protrusions 261 integral with the flap support arms 260, the manu ⁇ facturing process and cost can be simplified and reduced.
  • the water leakage can be prevented during the washing water flows from the water guide to the upper nozzle. Also, since the check valve has a simple structure, the manufacturing process and cost can be simplified and reduced. Therefore, the present invention can be applied to various industrial fields.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Check Valves (AREA)

Abstract

Structure de buse pour lave-vaisselle, comprenant: un porte-buse, une unité de joint montée sur une extrémité du porte-buse , avec au moins un orifice d'entrée, une unité de maintien de volet dépassant à l'avant de l'unité de joint, et un volet de clapet anti-retour relié rotatif à l'unité de maintien de volet.
PCT/KR2005/001545 2004-07-19 2005-05-25 Structure de buse pour lave-vaisselle WO2006028324A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112005000062T DE112005000062B4 (de) 2004-07-19 2005-05-25 Düsenkonstruktion einer Geschirrspülmaschine
US10/568,224 US20080163904A1 (en) 2004-07-19 2005-05-25 Nozzle Structure of Dish Washer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2004-0056046 2004-07-19
KR1020040056046A KR20060007259A (ko) 2004-07-19 2004-07-19 식기 세척기의 상부노즐 첵 밸브 결합 구조

Publications (1)

Publication Number Publication Date
WO2006028324A1 true WO2006028324A1 (fr) 2006-03-16

Family

ID=36746287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2005/001545 WO2006028324A1 (fr) 2004-07-19 2005-05-25 Structure de buse pour lave-vaisselle

Country Status (4)

Country Link
US (1) US20080163904A1 (fr)
KR (1) KR20060007259A (fr)
DE (1) DE112005000062B4 (fr)
WO (1) WO2006028324A1 (fr)

Cited By (1)

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WO2008137818A1 (fr) * 2007-05-04 2008-11-13 Electrolux Home Products, Inc. Système de distribution d'eau pour bras de pulvérisation à positions multiples d'un lave-vaisselle

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KR101241458B1 (ko) * 2006-01-26 2013-03-08 엘지전자 주식회사 식기 세척기의 노즐 홀더 결합 구조
KR101301495B1 (ko) * 2007-03-28 2013-08-29 삼성전자주식회사 식기세척기
DE102010042410A1 (de) * 2010-10-13 2012-04-19 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine und Einlassbolzen
US9259138B2 (en) 2010-12-07 2016-02-16 Whirlpool Corporation Dishwasher with auxiliary spray system having removable sprayers
US9119517B2 (en) 2011-10-17 2015-09-01 Whirlpool Corporation Dishwasher having spray manifold and method for controlling same
US9241604B2 (en) * 2013-01-14 2016-01-26 General Electric Company Adjustable dishwasher conduit valve system
US9480389B2 (en) * 2013-06-24 2016-11-01 Wolf Appliance, Inc. Connector for a dishwasher middle spray arm
CN203447254U (zh) * 2013-07-10 2014-02-26 美的集团股份有限公司 喷臂水路连接结构和洗碗机
WO2015096921A1 (fr) * 2013-12-24 2015-07-02 Arcelik Anonim Sirketi Lave-vaisselle à efficacité de lavage améliorée
WO2017114558A1 (fr) * 2015-12-29 2017-07-06 Arcelik Anonim Sirketi Lave-vaisselle
US10750924B2 (en) 2016-03-24 2020-08-25 Whirlpool Corporation Dishwasher with tube wash system
US10524634B2 (en) 2017-09-29 2020-01-07 Midea Group Co., Ltd. Dishwasher with combined liquid and air sprayers
US10531781B2 (en) 2017-09-29 2020-01-14 Midea Group Co., Ltd. Dishwasher with discretely directable tubular spray elements
US10646097B2 (en) * 2018-01-23 2020-05-12 Haier Us Appliance Solutions, Inc. Check valve assembly for a drain pump assembly of a dishwasher appliance
US10674889B2 (en) 2018-06-21 2020-06-09 Midea Group Co., Ltd. Docking port arrangement for an adjustable dispensing device
US10631708B2 (en) 2018-09-14 2020-04-28 Midea Group Co., Ltd. Dishwasher with docking arrangement for elevation-adjustable rack
US10765291B2 (en) 2018-09-14 2020-09-08 Midea Group Co., Ltd. Dishwasher with check valve in rotatable docking port
US11071440B2 (en) 2018-09-14 2021-07-27 Midea Group Co., Ltd. Dishwasher with rack-mounted conduit return mechanism
US11000176B2 (en) 2018-09-14 2021-05-11 Midea Group Co., Ltd. Dishwasher with rotatable diverter valve
US11045066B2 (en) 2019-03-11 2021-06-29 Midea Group Co., Ltd. Dishwasher with keyed coupling to rack-mounted conduit
US11399690B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. Dishwasher with cam-based position sensor
US11026559B2 (en) 2019-09-30 2021-06-08 Midea Group Co., Ltd. Dishwasher with image-based fluid condition sensing
US11484183B2 (en) 2019-09-30 2022-11-01 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11464389B2 (en) 2019-09-30 2022-10-11 Midea Group Co., Ltd. Dishwasher with image-based detergent sensing
US11259681B2 (en) 2019-09-30 2022-03-01 Midea Group Co., Ltd Dishwasher with image-based diagnostics
US11191416B2 (en) 2019-09-30 2021-12-07 Midea Group Co., Ltd. Dishwasher with image-based position sensor
US11202550B2 (en) 2019-11-20 2021-12-21 Midea Group Co., Ltd. Dishwasher thermal imaging system
US11185209B2 (en) 2019-11-20 2021-11-30 Midea Group Co., Ltd. Dishwasher steam generator
US11497374B2 (en) 2020-02-19 2022-11-15 Midea Group Co., Ltd. Dishwasher with wall-mounted rotatable conduit
US11412912B2 (en) 2020-09-21 2022-08-16 Midea Group Co., Ltd. Dishwasher with tubular spray element slip ring alignment
US11484180B2 (en) 2020-11-11 2022-11-01 Midea Group Co., Ltd. Dishwasher with tubular spray element including multiple selectable spray patterns
US11826001B2 (en) 2022-02-15 2023-11-28 Midea Group Co., Ltd. Dishwasher with tubular spray element including elongated metal tube and retaining tab for mounting support member thereto

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JPH05103742A (ja) * 1991-10-17 1993-04-27 Toshiba Corp 食器洗浄機
KR19990002574A (ko) * 1997-06-20 1999-01-15 후타미 도미오 차량용 사이드 도어의 힌지장치
US6431188B1 (en) * 2000-04-03 2002-08-13 Whirlpool Corporation Dishwasher spray arm feed system
KR20030044535A (ko) * 2001-11-30 2003-06-09 엘지전자 주식회사 식기세척기의 세척수 분사장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008137818A1 (fr) * 2007-05-04 2008-11-13 Electrolux Home Products, Inc. Système de distribution d'eau pour bras de pulvérisation à positions multiples d'un lave-vaisselle

Also Published As

Publication number Publication date
DE112005000062B4 (de) 2012-06-21
US20080163904A1 (en) 2008-07-10
KR20060007259A (ko) 2006-01-24
DE112005000062T5 (de) 2006-08-17

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