EP3875766A1 - Fuss für eine pumpe - Google Patents

Fuss für eine pumpe Download PDF

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Publication number
EP3875766A1
EP3875766A1 EP20160315.6A EP20160315A EP3875766A1 EP 3875766 A1 EP3875766 A1 EP 3875766A1 EP 20160315 A EP20160315 A EP 20160315A EP 3875766 A1 EP3875766 A1 EP 3875766A1
Authority
EP
European Patent Office
Prior art keywords
arm
pump
foot
stable position
front panel
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Withdrawn
Application number
EP20160315.6A
Other languages
English (en)
French (fr)
Inventor
Yunus BAYKARA
Christian Drößler
Tobias DEMMELMAIER
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.)
Husqvarna AB
Original Assignee
Husqvarna AB
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 Husqvarna AB filed Critical Husqvarna AB
Priority to EP20160315.6A priority Critical patent/EP3875766A1/de
Priority to EP21700196.5A priority patent/EP4115086B1/de
Priority to PCT/EP2021/050229 priority patent/WO2021175500A1/en
Priority to CN202180009821.XA priority patent/CN114981543A/zh
Publication of EP3875766A1 publication Critical patent/EP3875766A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/38—Retaining components in desired mutual position by a spring, i.e. spring loaded or biased towards a certain position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/50—Kinematic linkage, i.e. transmission of position

Definitions

  • the present disclosure relates to a foot for a pump. More specifically, the present disclosure relates to a foot for a pump which provides simple and convenient methods to adjust or manage different heights of the pump as per the requirements of common users.
  • a pump is a device that allows transport of fluids such as liquids or gases, or sometimes slurries, by mechanical actions.
  • a submersible pump is a device which has a hermetically sealed motor close-coupled to a pump body.
  • the submersible pump may be submerged in a fluid to be pumped.
  • the pumps are used to pump water from wells, or to filter aquariums, ponds, or may be used in car industries or energy industries for desired purposes.
  • the pump may include a foot. The foot may help to attain desired heights depending on a liquid level in which the pump is submersed.
  • an additional structure (such as base of a pump) may be coupled or uncoupled with the pump to get the desired height of the pump. Further, the coupling and uncoupling of additional parts to the pump may lead to formation of unrequired complex construction of the pump. Moreover, many technical issues may occur during assembly or disassembly of the additional structures with the pump.
  • the Chinese utility model CN 201 568 282 U describes a pump that has feet attached to its pump housing from underneath.
  • the feet are connected to their respective base body via a hinge.
  • the hinge and thus the coupling is sturdily secured by a securing element that is at the hinge screwed onto the base body after coupling.
  • the feet of the pump can be pivoted between a first stabile position and a second stabile position in respect to the base body. Doing this changes the height of the pumps water inlet in respect to the ground when the pump is back in its operational position.
  • the feet of the pump are fixed in their pivotable position with the help of a screw connection of a fixing element to its hinges. This is pretty tedious during assembly and is not cost effective
  • the objective is at least partially achieved by a foot for a pump.
  • the foot includes a base body.
  • the pump has a coupling structure coupled to the base body.
  • the coupling structure allows the foot to pivotally move between a first stable position and a second stable position.
  • the foot further includes a front panel coupled to the coupling structure.
  • the front panel can be actuated by a user to move the foot between the first stable position and the second stable position.
  • the foot is characterized in that the foot includes a first arm, a second arm and a third arm.
  • the first arm is coupled to the base body at a first end.
  • the second arm is coupled to the base body at a second end.
  • third arm is positioned to actuate both the first arm and the second arm.
  • the first arm, the second arm and the third arm are cooperatively movable relative to each other between the first stable position and the second stable position, such that the front panel is adapted to actuate the third arm to move against the first arm and the second arm.
  • the front panel ( 114 ) is adapted for the pump ( 150 ) to rest on it.
  • the present disclosure provides a simple, efficient, and convenient foot to adjust different heights of the pump. And it helps in engagement of the front panel with the base body.
  • a general bistable mechanism is described by U.S. patent 6,215,081 whether naming any exemplary use, in particular not for use for the feet of pumps, nor describing any featural additions necessary for a certain use case.
  • the foot includes a first end and a second end.
  • the first end of a pivotable element adapted to be pivotally coupled to the base body.
  • the pivotable element is engaged with at least one of a first structural feature and a second structural feature defined on the base body.
  • the pivotable element engages with the first structural feature in the first stable position and the pivotable element engages with the second structural feature in the second stable position of the coupling structure.
  • the front panel is coupled to the second end of the pivotable element. This allows free movement or actuation of the front panel by the common user.
  • the first stable position corresponds to a first height of the pump base and the second stable position corresponds to a second height of the pump base. This may help in achieving the desired heights which are meant to suck/pump a large quantity of liquid in which the pump is submerged.
  • the second height is greater than the second height. This may allow suction or pumping of liquid when the liquid level is relatively high.
  • the first height and the second height are 1mm and 5mm respectively. This may allow the pump to force the liquid entry at both desired liquid heights.
  • the front panel include at least one tab. This may allow the front panel to get engaged with the base body.
  • the base body is structurally integrated with the pump. This may prevent strength to the foot of the pump.
  • the foot is manufactured by three-dimensional printing.
  • Use of three-dimensional printing may provide versatility of using different materials along with lower lead-time in manufacturing and design of the foot.
  • the foot is removably coupled with the pump. This may allow assembly of the foot to the pump as per the applicational requirements of the common users.
  • the first arm and the second arm are coupled by flexible hinges.
  • durability of the flexible hinges may allow repetitional movements of the foot.
  • the flexible hinges may experience little friction when the first arm, the second arm, and the third arm are actuated. Further, the flexible hinges may typically result in a long service life. Moreover, an integration of the flexible hinges may eliminate the need of extra components.
  • the first arm and the third arm are coupled by a snap connection.
  • the snap connection may provide simple and cost -effective ways to assemble different parts of the foot.
  • the base body includes one or more recesses/grooves. This may allow assembly of the foot to the pump through the one or more recesses/grooves.
  • the base body is engaged to the pump through the one or more recesses/grooves. This may connect the foot to the pump to form a single body.
  • the foot for a pump having a pump housing may be manufactured using a three-dimensional (3-D) printing process.
  • a user of a pump having an according foot may be provided with a data file having prestored instructions to print the foot using a three-dimensional (3-D) printer. In order to do so, the foot may be presented in digital format.
  • Use of three-dimensional printing (alternatively, 3D printing) may provide versatility of using different materials along with lower lead-time in manufacturing and design of the foot.
  • FIG. 1 illustrates a pump base 100 of a pump 150 .
  • the pump 150 is a mechanical device which pumps fluids such as liquids, gases, or sometimes slurries.
  • the pump 150 may be used indoors or outdoors according to applicational needs of a common user.
  • the pump 150 includes a handle 103 to lift or displace the pump 150.
  • the body includes an water inlet 102 (not visible).
  • the water inlet 102 is present at the bottom of the pump housing 105 , that is at the bottom of its pump base 100 and allows a liquid to be sucked by the pump 150 .
  • the pump 150 has an outlet 104 .
  • the outlet 104 discharges the liquid.
  • the discharged liquid may be used to different applications such as irrigation, washing etc.
  • FIG. 1 shows the pump 150 in its operational position that allows to suck water via its water inlet 102 (not visible) on the bottom of the pump housing 105 that find itself on the bottom of the pump 150 in its operational position.
  • the pump housing 105 comprising a pump base 100 including one or more feet 106 .
  • the one or more feet 106 are accessible during the normal operation of pump 150 from side of the pump housing 105 . This allows to adjust desired heights of the pump 150 being in its operational position.
  • the common user may need the pump 150 to get adjusted at different heights.
  • the pump 150 at different heights may cater to different application requirements. Pushing and pulling of the foot ( 106 ) moves it between its first stable position and its second stable position.
  • the pump base 100 may be an integral part of the pump housing 105 or may be assembled or disassembled with a pump housing 105 through one or more pump base connectors 132 connecting the pump base 100 to the remainder part of the pump housing 105 .
  • the one or more feet 106 may be manufactured by three-dimensional printing.
  • Use of three-dimensional printing (alternatively, 3D printing) may provide versatility of using different materials along with lower lead-time in manufacturing and design of the one or more feet 106 .
  • the one or more feet 106 may be made up of a material selected from steel, brass, stainless steel, aluminum or plastic. Nature of the material is chosen as per the requirements of the common user. The desired nature of the material provides the one or more feet 106 with certain characteristic features such as flexibility, elasticity, rigidity, heat or vibrations resistant properties.
  • FIG. 2A illustrates a side view of the foot 106 for the pump 150 in a first stable position.
  • the foot 106 includes a base body 110 .
  • the foot 106 further includes a coupling structure 112 .
  • the coupling structure 112 is coupled to the base body 110 .
  • the base body 110 has a first end 116 and a second end 118.
  • the coupling structure 112 allows the foot 106 to pivotally move between the first stable position and a second stable position (shown in FIGS. 3A and 3B respectively).
  • the pump 150 further includes a front panel 114 .
  • the front panel 114 is actuated by a user to move the foot 106 between the first stable position and the second stable position.
  • the front panel 114 includes a tab 120.
  • the tab 120 allows an engagement (shown in FIGS. 3A and 3B ) and disengagement of the front panel 114 with the second end 118 of the base body 110 .
  • the foot 106 further includes a first arm 122 , a second arm 124 and a third arm 126 .
  • the first arm 122 is coupled to the base body 110 at the first end 116 .
  • the second arm 124 is coupled to the base body 110 at the second end 118.
  • the third arm 126 is positioned to actuate both the first arm 122 and the second arm 124 .
  • the first arm 122 , the second arm 124 and the third arm 126 are cooperatively movable relative to each other between the first stable position and the second stable position.
  • the first arm 122 and the second arm 124 are coupled by one or more flexible hinges 128 .
  • durability of the one or more flexible hinges 128 may allow repetitional movements of the foot 106 .
  • the one or more flexible hinges 128 may experience little friction when the first arm 122 , the second arm 124 , and the third arm 126 are actuated. Further, the one or more flexible hinges 128 may typically result in a long service life.
  • An integration of the one or more flexible hinges 128 may eliminate the need of extra components.
  • the first arm 122 and the third arm 126 are coupled by a snap connection 130 .
  • the snap connection 130 may provide simple and cost-effective ways to assemble different parts of the foot 106 .
  • FIG. 2B illustrates a front view of the foot 106 in the first stable position.
  • the base body 110 is directly coupled to the pump 150 .
  • the foot 106 includes one or more recesses/grooves 132 . This may connect the foot 106 to the pump 150 to form a single body.
  • the base body 110 is structurally integrated with the pump base 100 . This may provide strength/ rigidity to the foot 106 of the pump 150 .
  • the foot 106 is removably coupled with the pump base 100 . This may allow assembly or disassembly of the foot 106 with the pump base 100 as per the applicational requirements of the common users.
  • the base body 110 may engage with the pump base 100 through the one or more recesses/grooves 132 .
  • the base body 110 of the foot 106 may be engaged with the pump base 100 by both temporary and permanent means.
  • the temporary connection may be done by gluing, screwing, tying with threads and the like.
  • the permanent connection may be done by welding, riveting and any other fabrication technique which is used or known in the art.
  • the base body 110 and the pump base 100 may be connected by snap connections.
  • FIGS. 3A and 3B illustrate side and front views of the foot 106 in the second stable position respectively.
  • the front panel 114 is adapted to actuate the third arm 126 to move against the first arm 122 and the second arm 124 . This helps in engagement of the front panel 114 with the base body 110.
  • the actuation of the front panel 114 engages the tab 120 with the second end 118 of the base body 110 .
  • the front panel 114 may engage with the base body 110 by pressing or pushing the front panel 114 towards the base body 110 .
  • the front panel 114 may be actuated by pressing a top portion 133 of the front panel 114 .
  • the front panel 114 may engage with the base body 110 manually or by using simple tools.
  • the second stable position of the front panel 114 with the base body 110 increases height of the pump 150 (shown in FIG. 8 ).
  • the front panel 114 may be provided by some grooves.
  • the grooves may help to actuate the front panel 114 .
  • the user may actuate the front panel 114 by inserting fingers into the grooves or by using some simple tool to actuate the front panel 114 .
  • the tab 120 may be made up of any material selected from one or more of a plastic, steel, nylon, rubber etc.
  • the tab 120 may provide support to the front panel 114 to stay engaged with the second end 118 of the base body 110 .
  • the second end 118 of the base body 110 may have some protrusions which may lock or engage with grooves present on the front panel 114 . This arrangement may also provide firmness to the second stable position.
  • some designed structures may be present on the front panel 114 . The designed structures may get engaged with complementary designed structures present on the second end 118 of the base body 110 .
  • FIG. 4 illustrates the pump base 100 in the first stable position.
  • the first stable position is attained by the pump 150 , whenever the liquid level is quite low.
  • the first stable position corresponds to a first height of the pump base 100 .
  • the first height is 1mm.
  • the first height of the pump 150 may help in sucking or pumping of water, even when the water level is quite low.
  • FIGS. 2A , 2B and 5A , 5B corresponds to FIG. 7 .
  • the movement of the front panel 114 between the first stable position and the second stable position may eliminate need of external resources to lift or drop the pump 150 .
  • the front panel 114 may stay only in the first stable position and the second stable position.
  • the front panel 114 may not stay in any intermediate position between the first stable position and the second stable position. Therefore, the front panel 114 may follow a bi-stabile mechanism. This may provide stability to the front panel 114 to stay in the first stable position and the second stable position without much power input and despite small external disturbances.
  • FIG. 5 illustrates the pump base 100 in the second stable position.
  • the second stable position is attained by the pump 150 , whenever the liquid level is quite high. With the feet of the pump in this second stable position that particles of a size by 5 mm can pass the pump.
  • the second stable position corresponds to a second height of the pump base 100 . In an embodiment, the second height is 5mm.
  • the second height of the pump 150 may help in sucking or pumping of water, even when the water level is quite high.
  • FIGS. 3A , 3B corresponds to FIG. 5 .
  • the second height is greater than the first height. The first height and the second height may allow the pump 150 to force the liquid entry at both desired liquid heights.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20160315.6A 2020-03-02 2020-03-02 Fuss für eine pumpe Withdrawn EP3875766A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20160315.6A EP3875766A1 (de) 2020-03-02 2020-03-02 Fuss für eine pumpe
EP21700196.5A EP4115086B1 (de) 2020-03-02 2021-01-08 Pumpe umfassend einen fuss mit flexiblen scharnieren
PCT/EP2021/050229 WO2021175500A1 (en) 2020-03-02 2021-01-08 Foot for a pump
CN202180009821.XA CN114981543A (zh) 2020-03-02 2021-01-08 用于泵的支脚

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20160315.6A EP3875766A1 (de) 2020-03-02 2020-03-02 Fuss für eine pumpe

Publications (1)

Publication Number Publication Date
EP3875766A1 true EP3875766A1 (de) 2021-09-08

Family

ID=69743082

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20160315.6A Withdrawn EP3875766A1 (de) 2020-03-02 2020-03-02 Fuss für eine pumpe
EP21700196.5A Active EP4115086B1 (de) 2020-03-02 2021-01-08 Pumpe umfassend einen fuss mit flexiblen scharnieren

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21700196.5A Active EP4115086B1 (de) 2020-03-02 2021-01-08 Pumpe umfassend einen fuss mit flexiblen scharnieren

Country Status (3)

Country Link
EP (2) EP3875766A1 (de)
CN (1) CN114981543A (de)
WO (1) WO2021175500A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0517193U (ja) * 1991-08-20 1993-03-05 三菱電機株式会社 ターボ分子ポンプ
US6215081B1 (en) 1998-08-31 2001-04-10 Brigham Young University Bistable compliant mechanism
CN201568282U (zh) 2009-09-15 2010-09-01 宁波君禾泵业有限公司 两用型水泵底座
US20120234508A1 (en) * 2010-07-16 2012-09-20 University Of South Florida Multistable shape-shifting surfaces
CN103206386B (zh) * 2013-04-08 2015-04-08 苏州沃达园林机械有限公司 可垂直拉拔的潜水泵
US20160161051A1 (en) * 2014-12-05 2016-06-09 Roberto SALIN System with extendable retractable telescopic elements depending on a lifting mechanism, lockable and unlockable mechanically and automatically

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101260889A (zh) * 2007-03-09 2008-09-10 沈阳市耐蚀合金泵厂 立式垂直底吸入离心泵
FR2953581B1 (fr) * 2009-12-08 2011-12-30 Jspm Support moteur d'un groupe motopompe primaire d'un reacteur nucleaire a eau pressurisee
CA2751791C (en) * 2011-09-06 2014-10-14 Weir Canada Inc. Pumping system
US9341182B2 (en) * 2012-04-11 2016-05-17 Gotec Sa Electromagnetic pump
CN109723945B (zh) * 2019-01-10 2021-04-06 北京机械设备研究所 一种基于柔性平行四边形机构的精密指向平台

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0517193U (ja) * 1991-08-20 1993-03-05 三菱電機株式会社 ターボ分子ポンプ
US6215081B1 (en) 1998-08-31 2001-04-10 Brigham Young University Bistable compliant mechanism
CN201568282U (zh) 2009-09-15 2010-09-01 宁波君禾泵业有限公司 两用型水泵底座
US20120234508A1 (en) * 2010-07-16 2012-09-20 University Of South Florida Multistable shape-shifting surfaces
CN103206386B (zh) * 2013-04-08 2015-04-08 苏州沃达园林机械有限公司 可垂直拉拔的潜水泵
US20160161051A1 (en) * 2014-12-05 2016-06-09 Roberto SALIN System with extendable retractable telescopic elements depending on a lifting mechanism, lockable and unlockable mechanically and automatically

Also Published As

Publication number Publication date
EP4115086B1 (de) 2024-09-25
EP4115086A1 (de) 2023-01-11
CN114981543A (zh) 2022-08-30
WO2021175500A1 (en) 2021-09-10

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