CN101229035A - Suction device for electric dust catcher - Google Patents
Suction device for electric dust catcher Download PDFInfo
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- CN101229035A CN101229035A CNA2008100085080A CN200810008508A CN101229035A CN 101229035 A CN101229035 A CN 101229035A CN A2008100085080 A CNA2008100085080 A CN A2008100085080A CN 200810008508 A CN200810008508 A CN 200810008508A CN 101229035 A CN101229035 A CN 101229035A
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- Prior art keywords
- rib
- connecting cylinder
- electric dust
- suction device
- bool
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- 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
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- 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
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
Abstract
An inhalation apparatus for dynamoelectric dust collector is provided to solve the problem that inhaling noise in state of bended flow of air and dust is easy to generate. A bending element (12) of the inhalation apparatus (10) for dynamoelectric dust collector has a connection cylinder (18) maintained to rotate smoothly by a rotation bearing unit (21) integrally formed on a main body (11). When the connection cylinder (18) rotates toward vertical state, a turbulent flow bag (26) in generated on lower part of the front end of the connection cylinder (18) wherein turbulent flow represented by arrow (27) occurs easily and the inhaling noise is easy to generate. To avoid the state, a rib (30) is arranged on lower part of an inner surface of the front end of the connection cylinder (18). The rib (30) extends in a direction that air and dust pass, a plurality of the ribs arranged in parallel way. Because of the rib (30) that inhibits generation of the turbulent flow, reduces the inhaling noise, the inhaling noise is hard to generate not depending on the rotating position of the bending element (12).
Description
Technical field
The present invention relates to a kind of suction device for electric dust catcher, relate in particular to a kind of being installed on the electric dust collector and use, be used to suck the dust on the swept surface and be sent to the inhalation apparatus of electric dust collector side.
Background technology
Electric dust collector generally has: body, and this body disposes electric blowing machine; Suction hose, the rear end of this suction hose is installed on the body, and its front-end configuration has operating portion; Suction lead, the rear end of this suction lead is connected with the operating portion of suction hose, and its front is connected with inhalation apparatus.The user makes inhalation apparatus move forward and backward along swept surface and cleans by holding the handle that is provided with at operating portion.
Inhalation apparatus in the past is arranged to the shape that connects with so-called T font with respect to suction lead in order to suck the dust of swept surface expeditiously when moving forward and backward.Promptly, on direction (width), has the inhalation apparatus body on long limit and the bool (bend) of giving prominence to from the width mediad rear of inhalation apparatus body with respect to cleaning direction (moving direction) quadrature, on above-below direction, rotate with respect to the inhalation apparatus body by bool, inhalation apparatus can not float from swept surface, can carry out good attraction.
In addition, accommodate rotary brush,, play the effects such as dust that stir swept surface, thereby improve sweeping efficiency by the rotation of rotary brush in the inside of inhalation apparatus.(for example, with reference to patent documentation 1)
Patent documentation 1: Japanese kokai publication hei 6-7271 communique
Suction device for electric dust catcher in the past, because bool is rotated at above-below direction with respect to the inhalation apparatus body, so be inhaled into the air of inhalation apparatus body and dust from the inhalation apparatus bulk flow during to bool, there is the roughly straight situation of its stream, also just has crooked situation.Reason is: under the state that bool is placed in the mode of giving prominence to general horizontal direction, and the roughly straight extension of stream; But under the state that bool is vertically placed, stream becomes case of bending.
But suction device for electric dust catcher is under the crooked state at the stream of air and dust, and it is poor that the internal diameter of stream produces width according to the difference at position.Because the width missionary society of internal diameter produces the pressure differential by air, to suck the such problem of sound (air pass through sound) also more clear so be easy to generate.
Summary of the invention
The present invention proposes in order to solve described problem, and main purpose provides a kind of inhibition and sucks the suction device for electric dust catcher that noise (flowing the sound that produces owing to air) takes place.
In addition, other purpose of the present invention provides a kind of no matter which kind of rotary state is bool be in respect to the inhalation apparatus body, all be difficult to take place noise improvement suction device for electric dust catcher.
The invention of technical scheme 1 is a kind of suction device for electric dust catcher, and it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and pass through to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; Be linked to described rotation with an end and bear portion, rotate freely connecting cylinder at above-below direction with respect to described body,
At the cylindrical internal surface of described connecting cylinder, be formed with the rib that direction is extended that passes through in the position of regulation at described air and dust.
The invention of technical scheme 2 is technical scheme 1 described suction device for electric dust catcher, it is characterized in that: the rotation portion of bearing of described bool comprises the bearing plane of approximate dome shape, one end of described connecting cylinder comprises the chimeric surface that is embedded in described bearing plane in its outer surface, it is that rotate freely at least up and down at the center that described connecting cylinder is configured to described bearing plane, and inner surface is formed with described rib below an end of described connecting cylinder.
The invention of technical scheme 3 is that it is characterized in that: described rib is provided with a plurality of abreast as technical scheme 1 or technical scheme 2 described suction device for electric dust catcher.
The invention of technical scheme 4 is as technical scheme 1 described suction device for electric dust catcher, it is characterized in that: the position of described regulation, making described bool pass through stream when crooked, comprise the position of curved outside with respect to what described body rotated, makes air and dust.
The invention of technical scheme 5 is as technical scheme 1 described suction device for electric dust catcher, it is characterized in that: at another distolateral inner surface of described connecting cylinder, be formed with the second rib that direction is extended that passes through at described air and dust.
The invention of technical scheme 6 is as technical scheme 5 described suction device for electric dust catcher, it is characterized in that: described second rib from another distolateral inner surface of described connecting cylinder towards distolateral being formed at roughly full week.
The invention of technical scheme 7 is as technical scheme 1 described suction device for electric dust catcher, it is characterized in that: described rotation is born portion and is rotated formation freely with respect to described body at the width of body.
The invention of technical scheme 8 is a kind of suction device for electric dust catcher, and it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and lead to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; One end is born portion by pivot suspension in described rotation, rotates freely rotary cylinder with respect to described body at above-below direction; And one end by pivot suspension in described rotary cylinder, rotate freely connecting cylinder with respect to described body at left and right directions,
At the cylindrical internal surface of described rotary cylinder, be formed with the rib that direction is extended that passes through in the position of regulation at described air and dust.
The invention of technical scheme 9 is as technical scheme 8 described suction device for electric dust catcher, it is characterized in that: the rotation portion of bearing of described bool comprises the bearing plane of approximate circle arcuation, one end of described connecting cylinder comprises the chimeric surface that is embedded in described bearing plane in its outer surface, described connecting cylinder is that the center is rotated at least up and down freely and to be provided with described bearing plane, and inner surface is formed with described rib below an end of described connecting cylinder.
The invention of technical scheme 10 is a kind of as technical scheme 8 and technical scheme 9 described suction device for electric dust catcher, and it is characterized in that: described rib is provided with a plurality of abreast.
The invention of technical scheme 11 is as technical scheme 8 described suction device for electric dust catcher, it is characterized in that: the position of described regulation, making described bool pass through stream when crooked, comprise the position of curved outside with respect to what described body rotated, makes air and dust.
The invention of technical scheme 12 is a kind of suction device for electric dust catcher, and it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and lead to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; One end is born portion by pivot suspension in described rotation, rotates freely rotary cylinder with respect to described body at above-below direction; And one end by pivot suspension in described rotary cylinder, rotate freely connecting cylinder with respect to described body at left and right directions,
At the tubular inner surface of described connecting cylinder, be formed with the rib that direction is extended that passes through in the position of regulation at described air and dust.
The invention of technical scheme 13 is that it is characterized in that: described rib is provided with a plurality of abreast as technical scheme 12 described suction device for electric dust catcher.
The invention of technical scheme 14 is a kind of suction device for electric dust catcher, and it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and lead to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; One end is born portion by pivot suspension in described rotation, rotates freely rotary cylinder with respect to described body at above-below direction; And one end by pivot suspension in described rotary cylinder, rotate freely connecting cylinder with respect to described body at left and right directions,
At another distolateral inner surface of described connecting cylinder, be formed with the rib that direction is extended that passes through at described air and dust.
The invention of technical scheme 15 is as technical scheme 14 described suction device for electric dust catcher, it is characterized in that: described rib from another distolateral inner surface of described connecting cylinder towards distolateral being formed at roughly full week.
The invention effect
According to technical scheme 1 described invention, an end that constitutes the connecting cylinder of bool rotates freely with respect to the rotation portion of bearing, and therefore, its internal diameter is wideer than other part of connecting cylinder.Turbulent flow takes place in connecting cylinder one end in that internal diameter broadens easily because produce pressure differential.Therefore, be formed with the rib that direction is extended that passes through at the assigned position of the cylindrical internal surface of bool at air and dust.Passing through of rib guiding air produces the rectified action of smooth flow.Therefore, the air that passes through is difficult to turbulent flow takes place, thereby can suppress the generation of passing through sound (suction noise) based on the air of turbulent flow.
According to technical scheme 2 described inventions, an end of connecting cylinder comprises chimeric surface, and when connecting cylinder rotated upward, the space (bag) that easy air is stagnated took place in an end of connecting cylinder below.Therefore, rib is set, can prevents the generation of turbulent flow, thereby can make the level and smooth generation that suppresses noise of flowing of air by the space (bag) below an end of connecting cylinder.
According to technical scheme 3 described inventions, because be provided with a plurality of ribs abreast, thus can improve rectification effect by rib, and can be with the Min. that is suppressed at of noise.
According to technical scheme 4 described inventions, make bool rotate and make air and dust pass through the stream bending time, be provided with rib in the position of curved outside.That is, there is rib, can puts turbulent flow in order and suppress the generation of noise effectively in the position that turbulent flow takes place easily.
According to technical scheme 5 described inventions, connecting cylinder forms narrow flow path area at rotating part, forms big flow path area its downstream (another is distolateral).Therefore, turbulent in another distolateral easy generation of connecting cylinder.By forming rib,, be difficult to prevent fully the generation of turbulent flow though be suppressed at the turbulent flow of a distolateral generation at connecting cylinder one end.Owing at the turbulent flow of this connecting cylinder one distolateral generation, cause another distolateral turbulent flow that also takes place easily, the sound that passes through of air take place based on turbulent flow at connecting cylinder.Second rib carries out rectification to another distolateral air of connecting cylinder mobile, suppresses the generation of turbulent flow, and suppresses the sound that passes through of the air that causes based on turbulent flow.
According to technical scheme 6 described inventions, second rib can suppress the generation of turbulent flow more reliably by on the roughly full week that is formed on connecting cylinder.
According to technical scheme 7 described inventions form with respect to the width of described body and rotate freely because rotate the portion of bearing at body, so connecting cylinder can rotate in direction up and down with respect to body, thereby can improve the operability of dust suction.At this moment, though, can suppress turbulent flow by rib, thereby can suppress the generation of noise because the crooked generation easily of connecting cylinder is turbulent.
According to technical scheme 8 described inventions, an end that constitutes the connecting cylinder of bool rotates freely with respect to the rotation portion of bearing, and therefore, its internal diameter is wideer than the other parts of connecting cylinder.At wide connecting cylinder one end of internal diameter, turbulent flow takes place easily owing to produce pressure differential.Therefore, be formed on the rib that direction is extended that passes through of air and dust at the assigned position of the tubular inner of bool.Passing through of rib guiding air produces the rectified action of smooth flow.Therefore, the air that passes through is difficult to take place turbulent flow, can suppress the generation of passing through sound (suction noise) of the air that causes based on turbulent flow.
According to technical scheme 9 described inventions, an end of connecting cylinder comprises chimeric surface, when connecting cylinder rotates upward, generates the space (bag) that air is stagnated easily below an end of connecting cylinder.Therefore, rib is set, can prevents the generation of turbulent flow, thereby can make the level and smooth generation that suppresses noise of flowing of air by the space (bag) below an end of connecting cylinder.
According to technical scheme 10 described inventions, because be provided with a plurality of ribs abreast, thus can improve rectification effect by rib, and can be with the Min. that is suppressed at of noise.
According to technical scheme 11 described inventions, make bool rotate, make air and dust pass through the stream bending time, be provided with rib in the position of crooked foreign side side.That is, there is rib, can puts turbulent flow in order and suppress the generation of noise effectively in the position that turbulent flow takes place easily.
According to technical scheme 12 described inventions, an end that constitutes the connecting cylinder of bool rotates freely with respect to the rotation portion of bearing, and therefore, when being rotationally connected tin, the stream bending of air at this sweep turbulent flow takes place easily.Therefore, be formed on the rib that direction is extended that passes through of air and dust at the assigned position of the tubular inner of bool.Passing through of rib guiding air produces the rectified action of smooth flow.Therefore, the air that passes through is difficult to take place turbulent flow, can suppress the generation of passing through sound (suction noise) of the air that causes based on turbulent flow.
According to technical scheme 13 described inventions, because be provided with a plurality of ribs abreast, thus can improve rectification effect by rib, and can be with the Min. that is suppressed at of noise.
According to technical scheme 14 described inventions, connecting cylinder forms narrow flow path area at rotating part, forms big flow path area its downstream (another is distolateral).Therefore, turbulent in another distolateral easy generation of connecting cylinder.Therefore, at the distolateral rib that direction is extended that passes through that is formed on air and dust of another of connecting cylinder.Rib carries out rectification to the mobile of another distolateral air of connecting cylinder, thereby suppresses the generation of turbulent flow, suppresses the sound that passes through of the air that causes based on turbulent flow.
According to technical scheme 15 described inventions, rib can suppress the generation of turbulent flow more reliably by on the roughly circumference that is formed on connecting cylinder.
As mentioned above, according to the present invention, carry out the rib of rectified action by the assigned position setting in bool, even a kind of bool that makes can be provided rotates with respect to inhalation apparatus ontological idea of freedom ground, according to the turned position of bool the noise that the suction because of air causes can not take place yet, and reduce the suction device for electric dust catcher of operation sound.
Description of drawings
Fig. 1 is the central lateral plane figure of the suction device for electric dust catcher of an embodiment of the invention, is the figure under the state that the bool level was fallen;
Fig. 2 is the central lateral plane figure of the suction device for electric dust catcher of an embodiment of the invention, is with the figure under the vertical state of placing of bool;
Fig. 3 is the stereogram of connecting cylinder 18 monomers, and expression rib 30 grades are structure chart more specifically;
Fig. 4 is the center section plan of the suction device for electric dust catcher of other embodiment of the present invention;
Fig. 5 is from prolonging the vertical view that pipe connects distolateral observation connecting cylinder 18;
Fig. 6 is the central sectional view of the suction device for electric dust catcher of other embodiment of the present invention, is the figure under the state that the bool level was fallen;
Fig. 7 is the central sectional view of the suction device for electric dust catcher of other embodiment of the present invention, is the figure under the state that bool is vertically placed.
Symbol description
10-inhalation apparatus (suction device for electric dust catcher); The 11-body; 12-bool; The 13-suction inlet; The 16-inlet; 17-guides the road; The 18-connecting cylinder; Stream in the 19-tube; The leading section of stream in the 19a-tube; 20,29-represents the arrow that flows of air and dust; 21-rotates the portion of bearing; 22-is as the front end of an end of connecting cylinder 18; The anti-hemispheric bearing plane of 24-; The 25-chimeric surface; 27-represents the arrow of turbulent flow; The 30-rib; 41-second rib (rib); The 42-rotary cylinder; 43-the 3rd rib (rib)
The specific embodiment
Below, with reference to accompanying drawing the specific embodiment of the present invention is described.
Fig. 1 is the central longitudinal profile of the suction device for electric dust catcher (hereinafter referred to as " inhalation apparatus ") of one embodiment of the present invention, is the figure under the state that the bool level was fallen.In addition, Fig. 2 equally also is the central longitudinal profile of inhalation apparatus, is the figure that makes under the vertical state of placing of bool.
See figures.1.and.2, inhalation apparatus 10 has body 11 and bool 12.Body 11 is rectangular container shapes (box-shaped) for example by ester moulding on the orthogonal direction of paper.And, on the orthogonal direction of paper, be formed with rectangular suction inlet 13 in its front side bottom surface.In body 11,, still on the orthogonal direction of paper, possesses the brush 14 that is provided with rectangular rotating shaft in mode in the face of suction inlet 13.In this embodiment, brush 14 does not drive rotation by there being illustrated motor, plays the dust that stirs swept surface when cleaning, sucks the effect of dust in body 11 expeditiously from suction inlet 13.
Be inhaled into air and dust in the inner space 15 of body 11 from suction inlet 13, the substantial middle portion that enters the width (long side direction, the orthogonal direction of paper) at body 11 forms and is communicated with rearward inlet 16,16 rearward flows from entering the mouth.Pass through guiding road 17 from enter the mouth 16 air that enter and dust, pass through the interior stream 19 of tube of the connecting cylinder 18 of formation bool 12 again, be directed to the electric dust collector side.Flowing shown in arrow 20,29 of air under this situation and dust.Connecting cylinder 18 loading and unloading are connected on the electric dust collector with the prolongation pipe that is connected by flexible pipe freely.
But bool 12 generally comprises the rotation that is arranged at body 11 and bears portion 21 and above-mentioned connecting cylinder 18, and an end of this connecting cylinder 18 is that front end 22 rotates and is linked to this rotation freely and bears portion 21.Therefore, connecting cylinder 18 is the center with its front end 22, and rotation like that up and down as shown in arrow 23 freely.In this embodiment, rotation is born portion 21 and is linked to body 11 freely in the last rotation of the width (left and right directions) of body 11, keeps the front end 22 of connecting cylinder 18 to rotate freely at above-below direction.Because rotation is born portion 21 and rotate formation freely on the width of body 11, be the approximate circle tubular, rotate the bearing plane 24 that supports connecting cylinder 22 freely at above-below direction and form approximate dome shape.On the other hand, be formed with chimeric surface 25, be embedded in bearing plane 24 in it, be used for level and smooth sliding-contact at the front end 22 of connecting cylinder 18.
Like this, because connecting cylinder 18 is by bearing plane 24 guiding of approximate dome shape, with its front end 22 is that the center can be rotated up and down, so at the rotary state that connecting cylinder 18 was fallen to general horizontal direction (with reference to figure 1) and connecting cylinder 18 is crooked upward and make under its rotary state that erects (with reference to figure 2), the flowing path section area of stream 19a changes near the tube the front end of connecting cylinder 18.
More specifically, as shown in Figure 1, under the state that connecting cylinder 18 levels were fallen, the inlet 16, the guiding road 17, the tube in stream leading section 19a with lead to a size of the stream of interior stream 19 (thickness) relative change less, as shown in arrow 20,16 air that enter and dust flow to a rear side of interior stream 19 smoothly from entering the mouth.
On the other hand, as shown in Figure 2,, then become big by a guiding road 17 and a size (internal diameter) of the circuit portion that the front end 19a of interior stream forms if make connecting cylinder 18 turn to the state of erecting.Therefore, the circuit portion that the leading section 19a of stream forms in bearing plane below being in 24 and the tube produces the bag (turbulent flow bag) 26 that generates air turbulence easily.So, 16 enter and from entering the mouth from guiding road 17 stream 19 flow air and dust in tube, except circulation like that rearward as shown in arrow 29, also because the pressure differentials that produce at turbulent flow bag 26, and turbulent flow as shown in arrow 27 takes place easily.If turbulent flow 27 takes place, it is big then to suck the change of tune, makes the user can recognize the generation of noise.
In this embodiment, in order to prevent the generation of described noise, be formed with rib 30.In the present embodiment, rib 30 below the front of connecting cylinder 18 inner surface whole mode is parallel to be provided with a plurality ofly almost to spread all over, be the laminal prominent bar that direction is extended that passes through at air shown in arrow 20,29 and dust.Rib 30 is formed near the position that the flow path area of connecting cylinder 18 becomes minimum from the front end of connecting cylinder 18.If rib 30 is set, incidental turbulent 27 at turbulent flow bag 26 then as shown in Figure 2, induced rearward in the stream 19 in the tube of connecting cylinder 18 because guided by rib 30, so can suppress turbulent generation, the result can prevent noise.
Fig. 3 is the stereogram of connecting cylinder 18 monomers, is the figure of the more specifically structure of expression rib 30.
As shown in Figure 3, rib 30 is arranged on the front inner surface below of connecting cylinder 18.More specifically, rib 30 is by from the front end 31 of connecting cylinder 18 rearward, extends along the length direction of connecting cylinder 18, and a plurality of tabular protuberant shape body of arranging in parallel to each other constitutes.Therefore, make connecting cylinder 18 turn to the state of erecting, in near the turbulent flow bag 26 that produces below the front end 31 of connecting cylinder 18, can be to because pressure differential and rectification is carried out in the disorder of incidental air, can suppress the generation of turbulent flow and make inhaled air and dust in tube, flow to the rear in the stream 19 smoothly.
Fig. 4 and Fig. 5 represent other embodiment of the present invention, except the rib 30 of described embodiment, have also appended second rib 41.The structure same-sign mark identical with described embodiment omits explanation.Fig. 4 is a profile, and Fig. 5 is the vertical view from the link unilateral observation connecting cylinder 18 that prolongs pipe.
Embodiment is illustrated as described, as shown in Figure 2, if make connecting cylinder 18 turn to the state of erecting, then becomes big by a guiding road 17 and a size (internal diameter) of the circuit portion that the front end 19a of interior stream forms.Therefore, the circuit portion that the leading section 19a of stream forms in by bearing plane below being in 24 and tube produces the bag (turbulent flow bag) 26 that generates air turbulence easily.So, 16 enter and from entering the mouth from guiding road 17 stream 19 flow air and dust in tube, circulation rearward not only as shown in arrow 29, and also because turbulent flow as shown in arrow 27 takes place in pressure differentials easily that produce at turbulent flow bag 26.
In order to suppress the generation of this turbulent flow, carry out rectification by the disorder that forms 30 pairs of air of rib, prevent the generation of noise, but be difficult to suppress fully the generation of turbulent flow.
So connecting cylinder 18 as shown in Figure 2, in order not run into the portion 21 of bearing that rotates when rotating upward, forms the position that stream narrows down because be rotated the portion's of bearing 21 supportings for rotating freely at above-below direction.The downstream at the position that this flow path area is narrow broadens owing to flow path area, so because turbulent flow can take place in the variation of flowing path section area.
As mentioned above, come rectification is carried out in the disorder of air, be difficult to suppress fully the generation of turbulent flow though form rib 30.Because turbulent flow takes place, produces noise in the disorder of this air easily in the downstream at the narrow position of the flow path area of connecting cylinder 18.
In the present embodiment, in order to prevent the generation of described noise, be formed with second rib 41.Second rib 41 extends to the link that connects the prolongation pipe from the narrowest position of flow path area of connecting cylinder 18, is forming on full week.Second rib 41 is set to the laminal prominent bar that direction is extended that passes through along air and dust.
Connecting cylinder 18 is on mould structure, and the narrowest position of flow path area is the opposite face position of the mould of shaping connecting cylinder 18 inner surfaces.The downstream at the position that the flow path area of connecting cylinder 18 is the narrowest (connection that prolongs pipe is distolateral) is because the pattern draft of mould forms along with diameter becomes big near front end.
If second rib 41 is set, then at the incidental turbulent flow in the downstream at the narrow position of the flow path area of connecting cylinder 18 by second rib 41 rectifications, so can suppress the turbulent flow generation, consequently can prevent noise.
Fig. 6 and Fig. 7 represent other embodiment of the present invention, and the structure identical with described embodiment omitted explanation with identical sign flag.Present embodiment is rotated the rotation that is bearing in local terminal 11 freely up and down with rotary cylinder 42 and is born portion 21, at rotary cylinder 42 supporting connecting cylinders 18, connecting cylinder 18 is gone up at the width (left and right directions) of body 11 rotated freely.
The same with the explanation in the described embodiment, as shown in Figure 7,, then become big by a guiding road 17 and a size (internal diameter) of the circuit portion that the front end 19a of interior stream forms if make connecting cylinder 18 turn to the state of erecting.Therefore, the circuit portion that the leading section 19a of stream forms in by bearing plane below being in 24 and tube produces the bag (turbulent flow bag) 26 that generates air turbulence easily.So, 16 enter and from entering the mouth from guiding road 17 stream 19 flow air and dust in tube, not only circulation rearward, and also because turbulent flow takes place in pressure differentials easily that produce at turbulent flow bag 26.If turbulent flow takes place, it is big then to suck the change of tune, makes the user can recognize the generation of noise.
In the present embodiment, the same in order to prevent the generation of described noise with described embodiment, be formed with rib 30 at rotary cylinder 42 inner surfaces.If rib 30 is set, at turbulent flow bag 26 incidental turbulent flows, stream 19 is induced rearward in the tube of rotary cylinder 42 because guided by rib 30, so can suppress turbulent generation, consequently can prevent noise.
In addition, because if connecting cylinder 18 is rotated with respect to the width (left and right directions) of rotary cylinder 42 to body 11, the then sharply bending of flowing of 18 air and dust from rotary cylinder 42 to connecting cylinder, so turbulent flow takes place easily, noise becomes greatly.
In order to prevent the generation of described noise, inner surface below rotary cylinder 42 end side of connecting cylinder 18 spreads all over roughly that whole ground is parallel to be formed with a plurality of the 3rd ribs 43.If the 3rd rib 43 is set, because the crooked incidental turbulent flow of stream,,, consequently can prevent the generation of noise so can suppress turbulent generation because stream 19 is induced rearward by 43 guiding of the 3rd rib and in the tube of connecting cylinder 18.
In the present embodiment, take place under the situation of the turbulent noise that causes in connecting portion one side of connecting cylinder 18 with the prolongation pipe, also the same with described embodiment, get final product at the inner surface formation second rib 41 of connecting cylinder 18 with connecting portion one side that prolongs pipe.
The shape and the structure of rib 30, second rib 41 and the 3rd rib 43 are not limited to Fig. 1～shape and structure shown in Figure 7.For example, in Fig. 1～Fig. 7, can make the height of each rib 30, rib 41, rib 43 be higher than illustrated height.Perhaps, in Fig. 1～Fig. 7, each rib 30, rib 41, rib 43 form the rib of certain altitude at fore-and-aft direction (among Fig. 1, Fig. 4 and Fig. 6 from the left side to the right direction), still, and also can be, reduce the height of the rib of rear end side as the height of the rib that increases front; Perhaps reduce the rib of front height, increase rear end side rib height like this, make the height of rib have difference of height according to the position of fore-and-aft direction.
In addition, as shown in Figure 3, rib 30 for example also can be provided with 1～N (N is an arbitrary integer) rib and replace six ribs.
In addition, about forming the position of rib 30, because connecting cylinder 18 (bool 12) is rotated with respect to body 11, what make air and dust passes through stream when crooked, be easy to generate turbulent flow bag 26 in the position of its crooked foreign side side, so preferred positions is the position of crooked foreign side side, but so long as in the tube internal diameter of stream 19 become big position, just can be in above-mentioned position in addition position rib is set.
In addition, though second rib 41 was formed on full week, also can only be formed on the easy position that turbulent flow takes place.
In addition, the rotation direction of bool 12 is not limited to above-below direction, though for bool 12 with respect to body 11 at the also rotary suction device for electric dust catcher of left and right directions, also can be suitable for the present invention.In this case, if when bool 12 is rotated in the tube internal diameter of stream become big position rib be set.
Suction device for electric dust catcher of the present invention is not limited to above-mentioned embodiment.For example, it can also be applicable to not have the suction device for electric dust catcher that is had the brush that rotates under the blast driving that produces by the brush 14 of motor driving rotation when sucking, or the various inhalation apparatus such as suction device for electric dust catcher of brush are not set.That is,, just can be suitable for the present invention so long as possess the body that has suction inlet and be used to guide from the inhalation apparatus of the bool of the tubular of suction inlet inhaled air and dust.
In addition, in the present embodiment, rotate and to bear portion 21 and be arranged on freely on the body 11 rotating on the width of body 11, but, also rotation can be born portion 21 and form as a whole with body 11 as other embodiment.
In addition, suction device for electric dust catcher of the present invention also can be applicable to the inhalation apparatus of erect type dust catcher.
The invention is not restricted to these embodiments of above explanation, in the described scope of claim, various changes can be arranged.
Claims (15)
1. suction device for electric dust catcher, it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and pass through to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; Be linked to described rotation with an end and bear portion, rotate freely connecting cylinder at above-below direction with respect to described body,
At the cylindrical internal surface of described connecting cylinder, be formed with the rib that direction is extended that passes through in the position of regulation at described air and dust.
2. suction device for electric dust catcher as claimed in claim 1 is characterized in that,
The rotation portion of bearing of described bool comprises the bearing plane of approximate dome shape,
One end of described connecting cylinder comprises the chimeric surface that is embedded in described bearing plane in its outer surface,
It is that rotate freely at least up and down at the center that described connecting cylinder is configured to described bearing plane,
Inner surface is formed with described rib below an end of described connecting cylinder.
3. as claim 1 or the described suction device for electric dust catcher of claim 2, it is characterized in that,
Described rib is provided with a plurality of abreast.
4. suction device for electric dust catcher as claimed in claim 1 is characterized in that,
The position of described regulation making described bool pass through stream when crooked with respect to what described body rotated, makes air and dust, comprises the position of curved outside.
5. suction device for electric dust catcher as claimed in claim 1 is characterized in that,
At another distolateral inner surface of described connecting cylinder, be formed with the second rib that direction is extended that passes through at described air and dust.
6. suction device for electric dust catcher as claimed in claim 5 is characterized in that,
Described second rib from another distolateral inner surface of described connecting cylinder towards distolateral being formed at roughly full week.
7. suction device for electric dust catcher as claimed in claim 1 is characterized in that,
Described rotation is born portion and is rotated formation freely with respect to described body at the width of body.
8. suction device for electric dust catcher, it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and pass through to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; One end is born portion by pivot suspension in described rotation, rotates freely rotary cylinder with respect to described body at above-below direction; And one end by pivot suspension in described rotary cylinder, rotate freely connecting cylinder with respect to described body at left and right directions,
At the cylindrical internal surface of described rotary cylinder, be formed with the rib that direction is extended that passes through in the position of regulation at described air and dust.
9. suction device for electric dust catcher as claimed in claim 8 is characterized in that,
The rotation portion of bearing of described bool comprises the bearing plane of approximate circle arcuation,
One end of described connecting cylinder comprises the chimeric surface that is embedded in described bearing plane in its outer surface,
Described connecting cylinder is that setting is freely rotated at the center at least up and down with described bearing plane,
Inner surface is formed with described rib below an end of described connecting cylinder.
10. as claim 8 or the described suction device for electric dust catcher of claim 9, it is characterized in that,
Described rib is provided with a plurality of abreast.
11. suction device for electric dust catcher as claimed in claim 8 is characterized in that,
The position of described regulation making described bool pass through stream when crooked with respect to what described body rotated, makes air and dust, comprises the position of curved outside.
12. a suction device for electric dust catcher, it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and pass through to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; One end is born portion by pivot suspension in described rotation, rotates freely rotary cylinder with respect to described body at above-below direction; And one end by pivot suspension in described rotary cylinder, rotate freely connecting cylinder with respect to described body at left and right directions,
At the tubular inner surface of described connecting cylinder, be formed with the rib that direction is extended that passes through in the position of regulation at described air and dust.
13. suction device for electric dust catcher as claimed in claim 12 is characterized in that,
Described rib is provided with a plurality of abreast.
14. a suction device for electric dust catcher, it has:
Body, this body has the suction inlet relative with swept surface;
The bool of tubular, the bool of this tubular can be given prominence to setting rotationally with respect to described body, and be used to make from described suction inlet inhaled air and dust and pass through to the electric dust collector direction,
Described suction device for electric dust catcher is characterised in that,
Described bool comprises: portion is born in the rotation that is arranged on the described body; One end is born portion by pivot suspension in described rotation, rotates freely rotary cylinder with respect to described body at above-below direction; And one end by pivot suspension in described rotary cylinder, rotate freely connecting cylinder with respect to described body at left and right directions,
At another distolateral inner surface of described connecting cylinder, be formed with the rib that direction is extended that passes through at described air and dust.
15. suction device for electric dust catcher as claimed in claim 14 is characterized in that,
Described rib from another distolateral inner surface of described connecting cylinder towards distolateral being formed at roughly full week.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-015416 | 2007-01-25 | ||
| JP2007015416 | 2007-01-25 | ||
| JP2007015416 | 2007-01-25 | ||
| JP2007320255A JP5172309B2 (en) | 2007-01-25 | 2007-12-12 | Vacuum cleaner suction tool |
| JP2007-320255 | 2007-12-12 | ||
| JP2007320255 | 2007-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101229035A true CN101229035A (en) | 2008-07-30 |
| CN101229035B CN101229035B (en) | 2011-01-26 |
Family
ID=39778545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100085080A Active CN101229035B (en) | 2007-01-25 | 2008-01-23 | Suction device for electric dust catcher |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5172309B2 (en) |
| KR (1) | KR20080070546A (en) |
| CN (1) | CN101229035B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593534B (en) * | 2013-09-26 | 2019-08-23 | 阿尔弗雷德·卡赫欧洲两合公司 | Pumping equipment with sound reflection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001198060A (en) * | 2000-01-19 | 2001-07-24 | Sanyo Electric Co Ltd | Suction tool for vacuum cleaner |
| JP3528736B2 (en) * | 2000-01-31 | 2004-05-24 | 株式会社日立製作所 | Vacuum cleaner mouthpiece |
-
2007
- 2007-12-12 JP JP2007320255A patent/JP5172309B2/en active Active
-
2008
- 2008-01-23 CN CN2008100085080A patent/CN101229035B/en active Active
- 2008-01-24 KR KR1020080007365A patent/KR20080070546A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN101229035B (en) | 2011-01-26 |
| JP5172309B2 (en) | 2013-03-27 |
| KR20080070546A (en) | 2008-07-30 |
| JP2008200480A (en) | 2008-09-04 |
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