CN1720849A - Brush attachment for domestic suction cleaner - Google Patents
Brush attachment for domestic suction cleaner Download PDFInfo
- Publication number
- CN1720849A CN1720849A CN 200510082166 CN200510082166A CN1720849A CN 1720849 A CN1720849 A CN 1720849A CN 200510082166 CN200510082166 CN 200510082166 CN 200510082166 A CN200510082166 A CN 200510082166A CN 1720849 A CN1720849 A CN 1720849A
- Authority
- CN
- China
- Prior art keywords
- suction
- brush roll
- brush
- flooded
- accessory
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 13
- 239000013536 elastomeric material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000003570 air Substances 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010407 vacuum cleaning Methods 0.000 description 1
Images
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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
The invention relates to a brush attachment of a household vacuum cleaner (3), which has a suction head (8). The suction head includes a brush roll cavity (9) which has a suction hole (10) on the ground side, a rotatable joint (11) for a suction pipe (6), a suction channel connecting the brush roll cavity (9) on the joint (11) of the suction pipe and a brush roll (13). The brush roll (13) can be fixed in the brush roll cavity (9) and can be driven rotatablely. According to the invention, when the leakage test is executed with a test device (1) passing the EN 60312 standard based on the edition of April, 2001 and the suction hole (10) is sealed for hermetic seal, the suction head (8) under the preconcerted negative test pressure of 100 millibars has a pressure loss Delta p less than 10 millibars. The household vacuum cleaner (3) with the suction head (8) can generate negative pressure in the test device (1).
Description
The present invention relates to a kind of brush accessory that is used for domestic suction cleaner, has flooded suction, it comprises the brush roll chamber, and this brush roll chamber has inlet hole in ground side, is used for the rotatable joint of suction line and the brush roll chamber is connected to suction passage in the suction pipe joint; And brush roll, this brush roll rotatably remains in the brush roll chamber and is rotatably driven.
Having the brush accessory of describing feature at introductory section is known in actual applications.Brush accessory is that vacuum cleaner is made, and is associated, exists the trial that continuous minimizing energy consumes.
With respect to this background, the objective of the invention is to tell about a kind of brush accessory of describing feature at introductory section that has, even the intake performance of the vacuum cleaner that is provided is very common, wherein brush accessory also can make self characteristic by good suction feature.
According to the present invention, reaching this purpose is in the leak-testing process, flooded suction has the pressure loss less than 10 millibars, wherein by according to April calendar year 2001 version the EN60312 standard test equipment carry out leak-testing, the inlet hole sealing is so that hermetic seal, and be under 100 millibars the predetermined negative test pressure, the domestic suction cleaner that wherein is intended to be used for flooded suction is used for producing negative pressure in testing equipment.Preferably, pressure loss is less than 8 millibars, more preferably less than 5 millibars.The present invention is based on following understanding: have under the situation of the energy-saving vacuum dust catcher of common intake performance only, the leakage in the flooded suction relevant with the corresponding loss of air throughput has quite a lot of significant negative effect than the situation of the vacuum cleaner that high-suction performance is provided.Under above-mentioned test condition, the pressure loss that the known brush accessory of prior art takes place is between 17 and 64 millibars, and also promptly accumulation is between 30 and 60 millibars.Suppose that intake performance is higher, in these known devices, the loss of leaking the suction air that causes can be compensated by the cleaning action of brush roll.Yet, really not so for the vacuum cleaner that common intake performance only is provided, make that sizable in this case pressure loss is unacceptable.Flooded suction comprises several sections, some rigidity interconnection and other interconnect so that move relative to each other.Joint is closely constructed, and is enough to obtain pressure loss according to the present invention less than 10 millibars.Even the structure very closely according to brush accessory of the present invention is guaranteed domestic suction cleaner for very common intake performance, also guaranteed satisfied cleaning effect.
Brush roll can drive by electric notor or the turbine that rotates in sucking air-flow.Under the situation of the brush accessory that comprises the turbine that is used to drive brush roll, generally provide by rigidity and maybe can operate the leakage that on purpose produces that second air openings causes.Even thereby these second air openings are used for also being provided for driving enough air capacities that turbine drives brush roll when the vacuum cleaning has the blanket of fine and close matte.Yet this structure can not be accepted the vacuum cleaner that is used to have common intake performance, and this is because consume the too intake performance of vast scale by the second air openings inhaled air.For this reason, thereby the present invention uses other method, promptly uses exceptionally close brush accessory, even its cleaning effect that also can obtain to expect for common vacuum cleaner performance.
For brush accessory according to the present invention, exist many selections to be used to guarantee described pressure loss.For example, in the design of brush accessory, can guarantee provides a spot of especially minimum possible sealing surfaces between each assembly of flooded suction.
And, by relative to each other accurately the fitted seal surface can minimize pressure loss.Particularly under the situation of big assembly, can provide the seal of being made by elastomeric material valuably between each sealing surfaces, for example seal is the clearance seal band forms.In order to reduce pressure loss, if designing, the flooded suction of brush accessory make the component count of the outer wall that is formed for flowing through air stream keep low as far as possible, also can be favourable, wherein flooded suction is owing to the reason relevant with its structure comprises several assemblies.Flooded suction also can comprise elastic hose or the expansion bellows that the suction air flows through, and described flexible pipe or bellows link to each other the housing of flooded suction with suction pipe joint, and above-mentioned suction pipe joint rotatably remains in described housing.As an alternative, suction pipe joint can comprise the sealing lip of being made by elastomeric material, and wherein said sealing lip is parked against sealing surfaces in jointing.
Explain the present invention in detail below with reference to the accompanying drawing that a kind of one exemplary embodiment only is shown.Following content diagrammatically illustrates:
Fig. 1 a, b are the testing equipments that is used for determining pressure loss, its conform European standard EN 60312;
Fig. 2 is according to brush accessory of the present invention;
Fig. 3 and 4 is further embodiments of the present invention; And
Fig. 5 is the pressure loss and the chart of comparing according to the brush accessory of prior art that illustrates according to brush accessory of the present invention.
Fig. 1 a and 1b illustrate the testing equipment that is used for determining the flooded suction pressure loss, and it carries out the European standard EN 60312 of version in April calendar year 2001.Testing equipment 1 is included as the measuring box 2 of hollow cubic bodily form formula, and it has the marginal dimension of about 500mm * 500mm * 500mm.Measuring box 2 comprises the connector that is used to connect vacuum cleaner 3, and this vacuum cleaner 3 is used to be created in the negative pressure in the measuring box 2.Be used for determining that the pressure measurement equipment 4 of pressure loss is connected to measuring box 2.According to the version B of above-mentioned European standard, it is hole 5 closed fully and that will be described in detail below that measuring box 2 is included in the described leak-testing of claim 1, also is that bore dia is d=0mm.And measuring box 2 comprises the connector that is used for suction line 6, and the brush accessory of testing can be connected on the above-mentioned suction line 6.Set 100 millibars preset negative test pressure being designed for shown in Fig. 1 a, its corresponding adjusting of performance of passing through the suction fan of the vacuum cleaner 3 that connected obtains.In this calibration testing, the end of suction line 6 that is connected to measuring box 2 is by cap 7 closures, so that hermetic seal.In case when pressure measurement equipment 4 shows static pressure p
1=P
EnvironmentIn the time of-100 millibars, calibration testing just can be finished, wherein P
EnvironmentThe ambient air pressure of expression measuring box outside.Subsequently, be under the situation of same settings at the fan performance of the vacuum cleaner that is connected, cap 7 is removed from the end of suction line 6, and for the purpose of carrying out leak-testing, brush accessory according to the present invention is placed on the end of suction line 6.The hairbrush example that illustrates as an example in Fig. 2 to 4 comprises flooded suction 8, this flooded suction 8 comprises the brush roll chamber 9 that has the inlet hole 10 that is in ground side, the swivel joint 11 that is used for suction line 6 and suction passage 12 again, and this suction passage 12 is connected to brush roll chamber 9 in the suction pipe joint 11.Suction pipe joint 11 rotatably is combined in the housing 23 of flooded suction 8 and the inclination jointing 21 of formation and housing 23.Brush accessory comprises brush roll 13, and it rotatably remains in the brush roll chamber 9 and rotatably drives, and further comprises roller 14.In the design shown in Fig. 1 b, in order to carry out leak-testing, inlet hole 10 by corresponding top 15 closures so that hermetic seal.Under the constant situation of the setting of the suction fan of the vacuum cleaner 3 that is connected to measuring box 2, measure the test pressure p that in measuring box 2, provides then
2, wherein the pressure loss Δ p of flooded suction 8 is from difference
Δ p=p
2-p
1=p
2-P
Environment+ 100 millibars
Calculate.In leak-testing, the flooded suction 8 of brush accessory moves and rotates back and forth (also according to Fig. 2) by the corresponding rotation of suction pipe joint 11, the annex of above-mentioned flooded suction 8 before carrying out according to the test of Fig. 1 b at measuring box 2 exterior ambient temperatures T
EnvironmentAt least stored two hours.The measured value p of Supreme Procuratorate that in test process, measures
2As calculating pressure loss Δ p, its in brush accessory according to the present invention less than 10 millibars.The vacuum cleaner 3 that is connected on the measuring box 2 is the domestic suction cleaners that are intended to use the brush accessory that will test, wherein vacuum cleaner is used as and produces negative pressure, and therefore described domestic suction cleaner can be connected in the suction pipe joint 11 of the flooded suction of testing 8.
Fig. 2 to 4 illustrates the different embodiment according to brush accessory of the present invention.In each case, suction passage 12 comprises the turbine chamber 16 that has turbine 17, and rotation maintains described turbine 17 in turbine chamber 16, and this turbine 17 is with 18 to drive by sucking the air-flow rotation by what be used to drive brush roll 13.In these so-called turbine type brush accessories, any leakage part has double negative effects.Thereby leak the suction air-flow that not only reduces negative pressure and reduce inlet hole 10 places, and, also bootlessly reduce the driveability of turbine 17, thereby reduce the cleaning action of brush roll 13 owing to the suction air-flow that reduces.Therefore, according to the present invention, the low especially cleaning action aspect that is lost in the turbine type brush accessory of negative pressure has double good effect.The adjacently situated surfaces place that Fig. 2 is illustrated in the single component of flooded suction provides by the elastomeric material seal 19 made of clearance seal band for example, and wherein above-mentioned adjacently situated surfaces is exposed to the suction air-flow.Fig. 3 illustrates the flooded suction 8 that comprises elastic expansion bellows 20, suck air and flow through above-mentioned elastic expansion bellows 20, wherein said expansion bellows 20 are connected to housing 23 in the suction pipe joint 11, and above-mentioned suction pipe joint 11 rotatably remains on the described housing 23.In this layout, expansion bellows 20 surround turbine 17.Therefore, prevented effectively owing to any negative pressure that the leakage between the slidingsurface of jointing 21 causes is lost.Replace expansion bellows 20 also can provide elastic hose.Suction pipe joint 11 comprises the sealing lip of being made by elastomeric material 22 in Fig. 4, and the be connected sealing surfaces of joint 21 of described sealing lip 22 is parked.
Fig. 5 illustrates when compared with prior art, brush accessory according to the present invention determined pressure loss under described test condition:
The feature graph A illustrates the opereating specification of brush accessory constructed in accordance;
Feature chart B illustrates the opereating specification of the brush accessory of making according to prior art, and the brush roll of said brush annex is by electric motor drive;
Feature chart C illustrates the opereating specification of the brush accessory of making according to prior art, and the brush roll of said brush annex is driven by air turbine;
Feature chart D illustrates according to the prior art manufacturing, in the opereating specification that the brush accessory that uses on the surface of pad is housed, and the brush roll of described brush accessory is driven by air turbine.
Feature chart B is not the dispersion range that single brush accessory is shown to D, and is the pressure loss that stands (determining under standard test condition) that illustrates by known brush accessory on the contrary.Feature chart B and C are about being used for the brush accessory in cleaning floor zone.Though brush accessory according to the present invention has the negative pressure loss less than 10 millibars under 100 millibars predetermined negative test pressure, the analog value of the brush accessory that prior art is known is a lot of than height.
Claims (3)
1. a brush accessory that is used for domestic suction cleaner (3) has
Flooded suction (8), it comprises brush roll chamber (9), this brush roll chamber (9) has inlet hole (10) in ground side, is used for the rotatable joint (11) of suction line (6) and brush roll chamber (9) are connected to suction passage in the suction pipe joint (11); And
Brush roll (13), this brush roll (13) rotatably remain in the brush roll chamber (9) and are rotatably driven,
It is characterized in that, in the leak-testing process, flooded suction has the pressure loss Δ p less than 10 millibars, wherein by according to April calendar year 2001 version the testing equipment (1) of EN 60312 standards carry out leak-testing, inlet hole (10) sealing is so that hermetic seal, and the predetermined negative that is in 100 millibars is tested under the pressure, and the domestic suction cleaner (3) that wherein is intended to be used for flooded suction (8) is used for producing negative pressure in testing equipment.
2. brush accessory as claimed in claim 1, it is characterized in that, flooded suction (8) comprises elastic hose or the expansion bellows (20) that the suction air flows through, described flexible pipe or bellows (20) link to each other the housing (23) of flooded suction (8) with suction pipe joint (11), above-mentioned suction pipe joint (11) rotatably remains in described housing (23).
3. brush accessory as claimed in claim 1 is characterized in that, suction pipe joint (11) comprises the sealing lip of being made by elastomeric material (22), and wherein said sealing lip (22) is parked against sealing surfaces in jointing (21).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04016915.3 | 2004-07-17 | ||
| EP04016915A EP1618822A1 (en) | 2004-07-17 | 2004-07-17 | Brush attachment for domestic suction cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1720849A true CN1720849A (en) | 2006-01-18 |
| CN1720849B CN1720849B (en) | 2010-05-05 |
Family
ID=33396154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510082166 Expired - Fee Related CN1720849B (en) | 2004-07-17 | 2005-07-04 | Brush attachment for domestic suction cleaner |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1618822A1 (en) |
| CN (1) | CN1720849B (en) |
| DE (1) | DE202004013106U1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711097A (en) * | 2014-01-07 | 2014-04-09 | 左志宽 | Pneumatic brush head |
| CN107076635A (en) * | 2014-09-25 | 2017-08-18 | 英福康有限责任公司 | Blanket type detector for leak detection |
| CN108135411A (en) * | 2015-10-22 | 2018-06-08 | 三菱电机株式会社 | Vacuum cleaner Floor nozzle of duster and vacuum cleaner |
| CN108402997A (en) * | 2013-07-31 | 2018-08-17 | 戴森技术有限公司 | Cleaner head for vacuum cleaner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007010517B4 (en) * | 2007-03-05 | 2013-04-11 | Wessel-Werk Gmbh | Nozzle for a cylinder vacuum cleaner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3815170A (en) * | 1972-06-30 | 1974-06-11 | Nat Union Electric Corp | Cleaning nozzle attachment for a suction cleaner |
| CA1115465A (en) * | 1978-01-19 | 1982-01-05 | Ryuichi Yasunaga | Vacuum cleaner |
| US4306330A (en) * | 1979-09-04 | 1981-12-22 | Black & Decker Inc. | Air-powered vacuum cleaner floor tool |
| DE3643314C2 (en) * | 1986-12-18 | 1996-06-05 | Miele & Cie | Vacuum cleaner floor nozzle with a swiveling suction pipe connection |
| DE50000075D1 (en) * | 2000-04-13 | 2002-02-21 | Wessel Werk Gmbh | Suction cleaning device for household vacuum cleaners |
-
2004
- 2004-07-17 EP EP04016915A patent/EP1618822A1/en not_active Ceased
- 2004-08-21 DE DE200420013106 patent/DE202004013106U1/en not_active Expired - Lifetime
-
2005
- 2005-07-04 CN CN 200510082166 patent/CN1720849B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108402997A (en) * | 2013-07-31 | 2018-08-17 | 戴森技术有限公司 | Cleaner head for vacuum cleaner |
| CN108402997B (en) * | 2013-07-31 | 2020-07-07 | 戴森技术有限公司 | Cleaner head for a vacuum cleaner |
| US10786127B2 (en) | 2013-07-31 | 2020-09-29 | Dyson Technology Limited | Cleaner head for a vacuum cleaner |
| CN103711097A (en) * | 2014-01-07 | 2014-04-09 | 左志宽 | Pneumatic brush head |
| CN103711097B (en) * | 2014-01-07 | 2016-01-13 | 左志宽 | Pneumatic brush head |
| CN107076635A (en) * | 2014-09-25 | 2017-08-18 | 英福康有限责任公司 | Blanket type detector for leak detection |
| CN107076635B (en) * | 2014-09-25 | 2019-11-12 | 英福康有限责任公司 | Blanket type detector for leak detection |
| CN108135411A (en) * | 2015-10-22 | 2018-06-08 | 三菱电机株式会社 | Vacuum cleaner Floor nozzle of duster and vacuum cleaner |
| CN108135411B (en) * | 2015-10-22 | 2020-12-01 | 三菱电机株式会社 | Vacuum cleaner head and vacuum cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202004013106U1 (en) | 2004-10-21 |
| CN1720849B (en) | 2010-05-05 |
| EP1618822A1 (en) | 2006-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20180704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |