CN1094936A

CN1094936A - Stick type vacuum cleaner

Info

Publication number: CN1094936A
Application number: CN94101765A
Authority: CN
Inventors: J·F·索维斯; P·D·施蒂芬斯; M·F·莱特; M·E·西波拉; C·M·桑德斯
Original assignee: Royal Appliance Manufacturing Co
Current assignee: Royal Appliance Manufacturing Co
Priority date: 1993-01-07
Filing date: 1994-01-05
Publication date: 1994-11-16
Also published as: KR940018057A; NO940051L; BR9400170A; HUT69465A; AU5278893A; NO940051D0; EP0606169A3; PL301811A1; EP0606169A2; IL108214A0; HU9400046D0; CZ494A3

Abstract

A kind of portable stick type vacuum cleaner comprises an elongated shell and the leg-of-mutton ozzle that is essentially that optionally is fixed on this shell.This ozzle comprises an ozzle main body with a basal surface and a top surface.A V-arrangement SS is positioned on the basal surface of this ozzle main body.This ozzle main body also has many Casters that are positioned on its basal surface.Air outlet slit parts are that fluid is communicated with SS.These air outlet slit parts comprise the sleeve pipe and the pipe joint that selectivity is communicated with shell that pivotally are fixed to the top surface of ozzle main body.This pipe joint is connected to one first fan hub part so that between is determined a fan chamber.The air outlet slit pipe and second fan hub partly are one.A motor is installed to drive a fan of in fan chamber, placing in the air outlet slit pipe.

Description

Stick type vacuum cleaner

The present invention relates to vacuum cleaner.Especially, the present invention relates to be applicable to the light weight vacuum cleaner of the small portable that carries.

The present invention is particularly useful for an elongated rod formula or broom formula vacuum cleaner.Yet those having ordinary skill in the art will appreciate that: the present invention also can be used for the vacuum cleaner product of multiple other pattern.

Elongated rod formula or broom formula vacuum cleaner generally include a vertical dust collecting installation, and this dust collecting installation is equipped with an ozzle in its bottom.Therefore this ozzle generally includes one can handle dust collecting installation with respect to ozzle with respect to the shell of dust collecting installation rotation.In this way, can be in the space of determining and similarly local below furniture or mobile on every side ozzle.

The simplicity of the operation of stick type vacuum cleaner and mobility make such product be able to extensive use.Yet no matter from dust catcher efficient or from the angle of manufacturing cost, conventional stick type vacuum cleaner all faces some problems.Problem is that the ozzle of such stick type vacuum cleaner can not successfully clean the corner, and another problem is to be difficult to promote back and forth ozzle on the carpet-covered surface.Also having another problem is that broom formula vacuum cleaner size is quite little, and size that being used to of providing in such vacuum cleaner collected and preserved the filter of dust just has been provided naturally for this.In the size that the space of air from the needed shell of air flue that a suction short tube of vacuum cleaner is directed to filter has further been limited filter.In addition, in conventional stick type vacuum cleaner, need many air flues to determine parts, and so just increased production cost and assembly cost.

Therefore, a kind of novel, improved stick type vacuum cleaner that can overcome above-mentioned difficulties and other difficulty developed in expectation, can also provide simultaneously better and more useful total effect.

According to the present invention, provide a kind of new improved ozzle that is used for vacuum cleaner.

Especially according to this aspect of the invention, ozzle comprises a shell with a basal surface and a top surface, this shell shape triangular in shape basically.A V-arrangement SS that comprises a pair of wire perforate is positioned on the basal surface of shell.A pair of rear portion Caster is positioned on the shell basal surface, and each castor is the relief angle of a correspondence of close triangle shell all.Provide one pivotally this to be fixed on device on the shell basal surface to Caster, Caster can be around 360 ° of vertical axes rotations so that provide a spinning movement whereby.This just can use this ozzle to carry out dust suction along one of them wire perforate, and at this moment this ozzle acutangulates with respect to another wire opening.

According to another aspect of the present invention, provide a new improved air flue to a vacuum cleaner.

Especially, according to this aspect of the invention, this air flue comprises one first fan hub part and one second fan hub part, this first fan hub partly has one first end (SS is set in addition) and one second end, and this second fan hub partly has one first end and one second end (being provided with an outlet opening herein).Air outlet slit pipe be positioned at the outlet opening place and with second fan hub partly be one.In order to determine the chamber between first and second fan hubs, be provided with a device so that second end of first fan hub part is fixed to first end of second fan hub part.An exhauster(-tor is placed in this chamber so that in SS place generation swabbing action and by air outlet slit pipe guiding air.

According to a third aspect of the present invention, provide a portable vacuum cleaner.

Especially according to this aspect of the invention, vacuum cleaner comprises a hollow and shell that have first and second ends.One first fan hub part and one second fan hub part also are provided, first fan hub partly has one first end, wherein is provided with a SS and one second end, second fan hub partly has one first end and one second end, at this second end place an outlet opening is arranged.An air outlet slit pipe is positioned at this outlet opening place, and with second fan hub partly be integral type.Provide second end to be fixed to the device of second fan hub, first end so that between first and second fan hubs part, determined a fan chamber first fan hub.An exhauster(-tor is placed in this chamber so that in SS place generation swabbing action and by air outlet slit pipe guiding air.Provide one first and second fan hub part and air hose be fixed on device in the shell, wherein first fan hub partly is positioned at first end of shell, and air hose is to second end extension of shell.Be contained in a motor in the shell and be connected on the exhauster(-tor so that can make this fan rotation.An ozzle can optionally be fixed to first end of shell.

An advantage of the invention is provides a kind of new improved vacuum cleaner.

Another advantage of the present invention has provided a kind of like this vacuum cleaner, this vacuum cleaner have one can select the ozzle dismantled, this ozzle be V-arrangement and a V-arrangement SS arranged on its basal surface.This makes this ozzle can successfully clean corner, skirting board and similar thing.

The 3rd advantage of the present invention provides one and has a vacuum cleaner that rotatably is supported on the ozzle on a plurality of Casters.If necessary, these Casters can rotate.This just make ozzle can any directional smoothing in surperficial upper edge of carpeting and not carpeting move.Best, on the basal surface of triangle ozzle, three such Casters are set by triangular relationship.

The 4th advantage of the present invention provides one and has the stick type vacuum cleaner that can select the hollow handle extension component dismantled.These parts can optionally be fixed between handle and the shell or be fixed on the suction tube stem of shell, and therefore these parts just can be received on the vacuum cleaner when using this vacuum cleaner to aspirate such as cobweb on curtain, the ceiling corner and similar thing in portable mode.

The 5th advantage of the present invention provides one makes ozzle have the stick type vacuum cleaner of two pivot systems, thereby provides two frees degree for this ozzle.

The 6th advantage of the present invention provided a stick type vacuum cleaner with two handle apparatus that separate.When using this stick type vacuum cleaner cleaning floor, adopt top handle.When lifting this stick type vacuum cleaner and come article (such as couch, curtain and similar Dong Zhenxi) more than the dust suction ground, will use this two handles.

The 7th advantage of the present invention provided a stick type vacuum cleaner with such ozzle, and this ozzle has a step front surface along its basal surface.This has just improved the air stream in the access arrangement, and also helps to reduce the required effort of this ozzle of promotion on the carpet-covered surface.

The 8th advantage of the present invention provided a stick type vacuum cleaner with such ozzle, and this ozzle has a best V-shaped elongated opening.Each arm of ozzle perforate has an inner segment, and this inner segment directly leads to inside and one second outer section of the hollow of ozzle, and this outer section is determined by a sloped wall surface.This inclined surface has increased the speed of the end of section outside this to the air of hollow ozzle internal suction, thereby has increased the overall dust collection efficiency of ozzle.

The 9th advantage of the present invention provided a stick type vacuum cleaner that has a suction short tube, but on this vacuum cleaner some instruments of affix, flexible pipe or an ozzle (if necessary).

The of the present invention ten advantage provides a stick type vacuum cleaner with an air flue that simplified, compacter, thereby makes stick type vacuum cleaner that bigger filter bag volume be arranged.

The 11 advantage of the present invention provides a stick type vacuum cleaner that only adopts a pair of fan hub part.The suction short tube and first fan hub partly are one.The air outlet slit pipe and second fan hub partly are one.This structure of having simplified makes the manufacturing of this vacuum cleaner and assembling more more economically.

The 12 advantage of the present invention provides a stick type vacuum cleaner with a kind of like this air hose, and this air hose and a fan hub partly are one, and this air hose comprises that at least one is used to support the motor fixation wall of suction motor.

The 13 advantage of the present invention provides a stick type vacuum cleaner with such air hose, and this air hose and motor shell half part are one, and this air hose comprises the wall of an extending transversely.In order in shell, to determine a filter chamber and a motor cavity, the action that will cooperatively interact of a shell of this wall and vacuum cleaner.

The 14 advantage of the present invention provides a stick type vacuum cleaner with such air flue, and this air flue only adopts a pair of fan hub part.This just provides a kind of useful pipe design of simplification, is tightly connected because only need one in the air flue at fan drum place.

After reading and having understood following detailed description, other benefit of the present invention and advantage are very clearly for those skilled in the art.

The present invention can adopt some parts and member, and a preferred embodiment will be described in detail in specification and be demonstrated with reference to following accompanying drawing:

Fig. 1 is a decomposition diagram according to vacuum cleaner of the present invention;

Fig. 2 is the amplification flat sheet of the bottom view of an ozzle of the vacuum cleaner of Fig. 1;

Fig. 3 is the sectional view of section of the ozzle of Fig. 2;

Fig. 4 is that the part of pipe handle extension of the vacuum cleaner of Fig. 1 is the side view of section;

Fig. 5 is that the part of bottom of the vacuum cleaner of Fig. 1 of fitting together is the side view of the amplification of section;

Fig. 6 is the side view that is used for the vacuum cleaner of Fig. 1 dust suction on the ground, that fit together;

Fig. 7 is the side view that is used at the vacuum cleaner of Fig. 1 above dust suction in ground, that fit together;

Fig. 8 is a profile of inhaling an amplification in hole by a wire of the ozzle of Fig. 2;

Fig. 9 is first fan hub enlarged perspective partly of the vacuum cleaner of Fig. 1; With

Figure 10 is second fan hub enlarged perspective partly of the vacuum cleaner of Fig. 1.

Referring now to these accompanying drawings, what represent among the figure only is for a preferred embodiment of the present invention being described rather than will limiting the present invention, Fig. 6 represents a stick type vacuum cleaner A who is used for floor suction, and Fig. 7 represents the vacuum cleaner that is used for the built on stilts dust suction that reconfigures.Although design of the present invention mainly is used as stick type vacuum cleaner or broom formula vacuum cleaner and describes the present invention below in conjunction with this vacuum cleaner, be understood that for the person of ordinary skill of the art the present invention also can be applied to the vacuum cleaner of various other types.

As shown in Figure 6, vacuum cleaner A comprises an elongated shell 10.Refer again to Fig. 1 now, shell 10 comprises shell latter half 12, one shell first halfs epimere or panel 14 and shell first half hypomere or motor cover plate 16.These parts all adopt conventional method to be fixed together.

Also be provided with a fan hub the first half parts 20 and fan hub the second half parts 22, fan hub the first half parts 20 and the second half parts 22 are combined together has sealed an exhauster(-tor 24 that is driven by motor 26.Fan hub first 20 comprises the suction short tube 28 of an one.Fan hub second portion 22 comprises the air conduit 30 and a pair of

motor fixer

32,34 that is used to support motor 26 of an one.Air conduit 30 leads to a filter bag 36 that is placed in the shell.

Fig. 6 also represents an ozzle 40 that is fixed to shell 10 lower ends.Now refer again to Fig. 1, ozzle comprises a cover plate 42 and a base plate 44.With reference to Fig. 2, the ozzle base plate comprises a lower surface 46.Two

SSs

48 and 50 are positioned on this lower surface, and these two

SSs

48 and 50 have been determined a perforate that is V-shape basically jointly.As shown in Figure 3, lower surface 46 has the step profile of a contiguous ozzle perforate 48 and 50, and this step is with numeral 51 expressions.The step lower surface has improved the air stream that enters this equipment (promptly entering suction perforate 48 and 50).In addition, the step perforate helps to be reduced in the required strength of promotion vacuum cleaner on carpet-covered surface or the similar object.

V-type suction perforate helps vacuum draw corner, skirting board or analog.Clearly, the V-type shape of the suction perforate on V-type ozzle 40 can make the user successfully clean the corner.In addition, the elongated SS along two side settings of V-type ozzle 40 makes the user to carry out the dust suction of maximal efficiency to contiguous skirting board in a room and analog.As shown in Figure 5, the hollow internal communication of this perforate and ozzle shell.

Referring now to Fig. 8, each in the SS (SS 50 as represented) all comprises first and second parts 53 and 54.The hollow inside 52 of ozzle shell is directly led in first 53.And second portion 54 is determined by the roof 55 of an inclination, and this roof 55 is combined with base plate 44.This wall 55 tilts so that the passage of an inclination is provided.Clearly, the gradient of this wall wants to increase the degree of depth towards the part 54 of hollow inside 52.Have been found that this structure has such advantage, promptly it helps to increase the speed of aspirating the air that advances from part 54.This has improved the dust collection efficiency of ozzle again.

On lower surface 46, also be provided with a pair of

separated brush

56 and 58 that nestles up

SS

48 and 50 back.These two brushes are to be used for brushing away the dust that is sucked.As shown in Figure 5, the plate washer 60 of an integral body is round the front surface triangular in shape basically of ozzle 40.Plate washer 60 can be the part of ozzle base plate 44.

As shown in Figure 3, a plurality of Casters 62 rotatably are supported on ozzle on the surface (as ground 61) below one.As shown in Figure 2,3 such Casters preferably are set.These Casters are preferably in and are generally triangular with one on the lower surface 46 of ozzle 40 or the layout of V-type is separated.Perhaps can clearly be seen that from Fig. 3 a suitable fasteners 64 is fixed to each Caster 62 on the ozzle 40.Preferably these Casters are located in the recess 66 that forms on the ozzle base plate lower surface 46, so that

SS

48 and 50 approaching following surfaces 61, and reduced the whole height of ozzle so that this ozzle can be in the furniture slip underneath.Therefore, as shown in Figure 2, for each Caster in the corresponding Caster all provides three such recesses 66.If necessary, Caster 62 can be the Caster of rotation, perhaps will carry out rigidity to them and install.Use for some, the Caster of rotation is useful.

Refer again to Fig. 5, pintle assembly is communicated with the hollow inner 52 of ozzle 40, this pintle assembly comprise one have a cylinder 71 and one manage stem 72 first, T-type pipeline section 70.With first a suitable fixture 73 this cylinder is rotatably fixed in the ozzle 40.With second fixture 76 one first end of one second elbow type pipeline section 74 rotatably is fixed on the pipe stem 72 of first pipeline section 70.It should be noted that: first and

second fixtures

72 and 76 have been for shell 10 provides two frees degree with respect to ozzle 40, this be because in the plane of Fig. 5 first pipeline section 70 with respect to ozzle 40 rotations and second pipeline section 74 around 70 rotations of first pipeline section.

Hole 78 be positioned at second pipeline section 74 second end near, and separate with second fixture 76, extend by the wall of this pipeline section in this hole 78.Suction short tube 28 stretches out shell 10 and enters in second pipeline section 74 of adjacent bores 78.A robust means that includes a firm pin 82 of flexible fastening is fixed on the suction short tube 28.Firm pin 82 extend by suitable hole 84 in this short tube and the mating holes in second pipeline section 78 in case selectively second pipeline section 74, and thereby first pipeline section 70 and ozzle 40 be fixed on the shell 10.Should be noted that: first and second pipeline sections the 70, the 74th, rotatably for good and all together fixed to one another, and first pipeline section 70 rotatably for good and all is fixed in the ozzle 40.

Refer again to Fig. 1, vacuum cleaner A also comprises one perpendicular to the fixing first handle 90 of an extension 92, and extension 92 is fixed to again on the handle short tube 91 of shell latter half 12.

Referring now to Fig. 4, extension 92 be hollow and include 93, one elastic biasing holding pins 94 of one first end and be fixed on this first end 93.This extension 92 also has second end 95 that is equipped with a transverse holes 96.Clearly, this extension 92 is a hollow, thereby an air duct can be provided.A second handle also is set on shell or holds tight part 97, this is held tight part 97 and is positioned on shell first half hypomere or the motor cover 16.

Fig. 6 has represented an air hole 98, so that the cooling air flows to motor and waste gas is flowed out from motor.Also represent a steam vent 99, ejected the filtered air of inherent filtration bag 36 by this steam vent.

In the normal configuration of stick type vacuum cleaner, as shown in Figure 6, extension 92 is between short tube 91 and first handle 90.This just allows vacuum cleaner to be used for conventional floor suction.Yet, if take off extension 92, first handle 90 can directly be fixed on the handle short tube 91 because this short tube also be equipped with same type for extension 92 and for the suction short tube 28 elastic biasing holding pin 92(as shown in Figure 4) and 82(as shown in Figure 5).When doing like this, as shown in Figure 7, can be fixed to extension 92 on the short tube 28 of shell 10 lower ends.Obviously.After taking off ozzle 40, extension 92 only is fixed on the suction short tube 28.

After this finishes, can be installed to a suitable bar 119 on first end 96 of extension 92.This makes the user can use this stick type vacuum cleaner to carry out the above dust suction in ground, such as cobweb or cleaning curtain or the similar thing removed in the ceiling corner.If necessary, can barre 119 be fixed in the instrument cases (not shown) on the rear side that is arranged at shell latter half 12.

Although be understood that first end that is fixed to extension 92 at Fig. 7 king-rod 119, if necessary, ozzle 40 also can be fixed on this position.In addition, can any other conventional vacuum cleaning instrument such as routine suction brush (not shown), suitably be installed on the extension 92.

Referring now to Fig. 9, the first fan hub part 20 is more or less cup-shaped and an end wall 100 is arranged, and suction short tube 28 laterally puts in from this end wall 100.On end wall 100, be provided with a pair of suitable firm and hold case member 102, firm can be fixed on this firm hold on the case member in case in shell 10 the fan attachment shell.A skirt section 104 of stretching out from suction short tube 28 is set on the periphery of end wall 100.A plurality of lugs 106 104 extend radially outwardly from the skirt section.Each lug has a through hole 108 and sees Fig. 1 so that hold a suitable fasteners 110().

The effect of securing member is that the first fan hub part 20 is fixed on the second fan hub part 22.Referring now to Figure 10, can realize this fixing by means of the lug 120 of alignment with hole 122, align with the hole 108 on lug 106 so that allow this securing member these two fan hub partial fixings together in this hole 122.Lug 120 is positioned at one downwards from the skirt section 124 that end wall 126 extends.The end wall 126 of the second fan hub part 22 is parallel to the end wall 100 of the first fan part 20.These two

end walls

100 and 126 cooperate to determine that a chamber 128 holds this fan 24 with two skirt sections 104 and 124.Hole 130 extend by second end wall 126 in case an end 132(who holds motor 26 as shown in Figure 5).

As previously mentioned, support motor 26 by a pair of

fixation wall

32 and 34 that is positioned on the air hose 30.For this purpose, each fixation wall comprises that the otch 136,138 of a suitable dimension is to support motor 26.The chamber of a definite end wall 140 is positioned near second fixation wall 34, and this end wall 140 separates the motor cavity of vacuum cleaner and filter container cavity.

The second fan hub part 22 also comprises a hole 142 of location radially outward, and a through hole 144 in air hose 130 is led in this hole 142.This through hole ends at the hole 146 of the horizontal orientation of being determined by a sleeve pipe 148.This sleeve pipe 148 is suitable for and dust bag 36 interoperations shown in Fig. 1.A lug 150 with a suitable hole 152 is positioned near the sleeve pipe 148, and this hole 152 stretches to hold a suitable fastener, so that air hose is fixed to rear casing part 12 by this lug 150.

From making the economic angle of vacuum cleaner, be provided with and a pair ofly comprise that respectively the

fan hub part

20 and 22 of suction short tube 28 and air hose 30 is useful.Especially will point out that suction short tube 28 and the first fan hub part 20 are one, and air hose 30 and the second fan hub part 22 are one.Preferably these parts are to make with a kind of suitable thermal plastic material, and this thermal plastic material for example, can be injection molded into the suitable shape that is used for shell 10.

In addition, partly nestling up second fan hub in radial outer periphery partly is provided with air hose 30 and can produces a compacter vacuum cleaner aspiration path of leading to filter bag 36.This just can provide a compact more air flue system, and this system can produce bigger bag volume for stick type vacuum cleaner.Also have, so effective air flue is set just allows to adopt less motor 26 to drive this fan 24, and can also produce necessary swabbing action at ozzle 40 places of vacuum cleaner.

In addition, the angle that only needs one be tightly connected (promptly at fan drum) from air flue now, it is favourable that a two-piece fans shell is set, and these two fan drums promptly are the

fan hub parts

20 and 22 that has the air hose 30 of the suction short tube 28 of an integral body and an integral body respectively.Therefore, the possibility of leaking from the air flue air diminishes.Thereby, might produce a higher levels of suction with exhauster(-tor 24.

The present invention has been described with reference to a preferred embodiment.Clearly, after reading and having understood this specification, can modify and change.The applicant is intended that: when these modifications with when changing within the claim of appendix or equivalent scope, the present invention then comprises all such modifications and change.

Claims

1, the ozzle of a vacuum cleaner comprises:

Shell with a basal surface and a top surface, this shell shape triangular in shape basically;

V-arrangement SS on said basal surface that is positioned at said shell, said V-arrangement SS has a pair of wire perforate;

Back Caster on a pair of said basal surface that is positioned at said shell, the relief angle of a correspondence of the contiguous said dihedral shell of each Caster and

Be used for this pivotally is fixed to device on the said basal surface of said shell to Caster, said whereby Caster can revolve three-sixth turn so that a spinning movement is provided around a vertical axes, one that makes this ozzle can be used in the said wire perforate is like this carried out dust suction, and is an acute angle along said another wire perforate.

2, according to the ozzle of claim 1, it is characterized in that: said each Caster all is located in the separated recess of the correspondence on the basal surface allegedly.

3, according to the ozzle of claim 1, it is characterized in that: said each wire perforate all comprise one with the first of the hollow internal communication of said shell and a second portion of determining by the inclined wall of said shell basal surface.

4,, also comprise a stepped area on the said basal surface at said shell in said SS the place ahead according to the ozzle of claim 1.

5, the air flue of a vacuum cleaner comprises:

First a fan hub part with one first end and one second end, a SS is positioned at the first end place;

Second a fan hub part with one first end and one second end, an outlet opening is positioned at the second end place;

One be positioned at said exit and with the said second fan hub part all-in-one-piece air outlet slit pipe;

A device that said first fan hub, second end is fixed to said second fan hub, first end in order between said first and second fan hubs part, to determine a chamber; With

An exhauster(-tor that is arranged in said chamber, this exhauster(-tor are used for producing swabbing action and guiding air by said air outlet slit pipe at said SS place.

6, according to the air flue of claim 5, it is characterized in that: the institute of said second shell part explains and is positioned on said second shell outer radial periphery partly.

7, according to the air flue of claim 5, also comprise one from said first fan hub partly stretch out and with said first fan hub part all-in-one-piece suction short tube, said SS is positioned at a free end of said suction short tube.

8, according to the air flue of claim 5, it is characterized in that: said air outlet slit pipe comprises that also a fixation wall is to hold a motor that drives said exhauster(-tor.

9, according to the air flue of claim 5, it is characterized in that: said being used for comprises the lug that cooperatively interacts and firm of being used for said lug is fixed together who is positioned on each said first and second fan hubs part to said first and second shell partial fixings device together.

10, portable vacuum cleaner comprises:

A shell, said shell be hollow and have first and second ends;

One be positioned at said outlet opening place and with the said second fan hub part all-in-one-piece air outlet slit pipe;

A device that said first fan hub, second end is fixed to said second fan hub, first end in order between said first and second fan hubs part, to determine a chamber;

An exhauster(-tor that is arranged in said chamber, this exhauster(-tor are used for producing swabbing action and guiding air by said air outlet slit pipe at said SS place;

One is used for said first and second fan hubs part and said air hose are installed in device in the said shell, and wherein said first fan hub partly is positioned at said first end of said shell and said second end that said air hose stretches to said shell;

One is contained in the said shell and links on the said exhauster(-tor so that it produces the motor of rotation; With

An ozzle that optionally is fixed to said shell first end.

11, according to the vacuum cleaner of claim 10, it is characterized in that: said ozzle comprises:

An ozzle main body, this ozzle main body comprise a base plate and the cover plate with a top surface and a basal surface with a top surface and a basal surface, have determined a hollow inside between said base plate and cover plate;

A V-arrangement SS that is positioned at said base plate lower surface, wherein said V-arrangement SS comprises a pair of wire perforate, each wire perforate comprises a first and the second portion of being determined by the wall of an inclination with institute said hollow internal communication, and the wall of this inclination tilts so that a concentrated suction structure is provided towards the wire perforate of a vicinity.

12, according to the vacuum cleaner of claim 11, it is characterized in that: said ozzle also comprises an air outlet slit pintle assembly, and said air outlet slit pintle assembly comprises:

Pivot is fixed on first cylindrical portions may between said base top surface and the said cover plate basal surface; With

Second cylindrical portions may that is fixed to said first rotatably and extends through said cover plate, wherein said second cylindrical portions may optionally are fixed on said first fan hub, first end at said SS place.