CN1919126A - Electric dust remover - Google Patents

Abstract

The present invention provided a vacuum cleaner equipped with a simple mechanism which can certainly maintain a contraction of a hose, the vacuum cleaner equipped with the simple mechanism which can presentably maintain the contraction of the hose and the vacuum cleaner which can store a presentable stand. The contracted extendable hose is stored in a storing cover and a flexible hose which is excellent in flexibility is bent to approximately 180 DEG, so that the storage of the stand of the vacuum cleaner has improved appearance. The flexible hose and the extendable hose made of different materials can be connected by a connection member corresponding to required characteristics. Also, an engaged ring disposed in the connection member and a storage cover are fixed by making an engaging nail of an engaging ring be engaged with an engaged groove and the contraction of the extendable hose can be certainly maintained with a simple mechanism. Also, the storage cover is coated with a surface cover so that it is not exposed outside and the contraction of the extendable hose has good appearance.

Description

The electric dust collector technical field

The present invention relates to electric dust collector.

Background technology

All the time in the holding method of the electric dust collector of Shi Yonging, have and accommodate the vertical of electric dust collector in such a way and accommodate: erect the deduster main body on ground, and the portion of being stuck of pipe is embedded in the holding section that is provided with on the deduster main body, thereby pipe is with respect to ground upright (for example, with reference to patent documentation 1).

[patent documentation 1] spy opens flat 11-197076 communique

But, under the situation of the length of fully guaranteeing flexible pipe in order cosily to use electric dust collector, in existing vertical accommodating,, therefore need bigger receiving space because flexible pipe is crooked significantly.In addition, crooked flexible pipe is wound in pipe or deduster main body, thereby outward appearance is also bad.Therefore,, then can realize vertical the accommodating that outward appearance is good if crooked flexible pipe is shunk, but need be with easy mechanism reliable and outward appearance keep the contraction state of this flexible pipe well.

Summary of the invention

The object of the present invention is to provide a kind of contraction state and the electric dust collector easy mechanism that to keep flexible pipe reliably that possesses.

Another object of the present invention is to provide a kind of contraction state and electric dust collector easy mechanism of can outward appearance keeping flexible pipe well that possesses.

Another purpose of the present invention is to provide a kind of can carry out the good vertical electric dust collector of accommodating of outward appearance.

In order to reach above-mentioned purpose, the electric dust collector of first technical scheme is characterised in that to possess: the deduster main body, and it is built-in with electric blowing machine; Has flexible flexible pipe, it has the pars contractilis that is disposed at described deduster main body side and is in elongation state usually the time, constitutes and be disposed at respect to described pars contractilis with being integral kink, and the coupling member of an end of the other end of the described pars contractilis of binding and described kink of the opposition side of described deduster main body in addition with described pars contractilis, and an end of described pars contractilis can be connected in described deduster main body with loading and unloading; And drum accommodate cover, the one end is connected in the described distolateral of described pars contractilis, cover described pars contractilis around, and when described pars contractilis shrinks, accommodate the described pars contractilis of contraction.

According to this structure, distolateral and utilize the built-in electric blowing machine of deduster main body to reducing pressure in the flexible pipe by another of inaccessible flexible pipe, or by manual task, the pars contractilis of the flexible pipe that shunk can be contained in the mode of having kept contraction state and accommodate in the cover.And, owing to the contraction of kink corresponding to pars contractilis bends, so good vertical the accommodating of outward appearance that can realize electric dust collector.In addition, be provided to the deduster main body side owing to accommodate cover, therefore flexible pipe, opposite with an end that is connected in the deduster main body another is distolateral and operate under the situation of electric dust collector controlling, the hand to another distolateral user of controlling flexible pipe does not apply the weight of accommodating cover, and is easy thereby the operation of electric dust collector becomes.In addition, by linking pars contractilis and kink, can form by different materials and require different pars contractilis of characteristic and kink by coupling member.

The electric dust collector of second technical scheme in technical scheme one, is characterized in that, possesses the outer cover of accommodating the drum that covers of cover on every side with described.

According to this structure, can give arbitrarily design to outer cover, and cover the cover of accommodating that the bellows that will shrink accommodates by this outer cover, thus can outward appearance keep the contraction state of bellows well.In addition, accommodated the restriction that cover is not subjected to outward appearance, can play the effect of accommodating bellows by what outer cover covered.

The electric dust collector of the 3rd technical scheme in technical scheme one or two, is characterized in that, possesses loading and unloading and fixes the described other end of cover and the fixed component of described coupling member of accommodating freely.

According to this structure, under the situation that the pars contractilis of flexible pipe has shunk, it is fixing separately to accommodate the other end of cover and the coupling member member that is fixed, and limits the pars contractilis elongation of contraction state thus and restores, and can accommodate pars contractilis reliably thereby accommodate cover.

The electric dust collector of the 4th technical scheme in technical scheme three, is characterized in that, described fixed component comprises: be arranged at the described other end of cover and the holding section on any one party in the described coupling member of accommodating; And be arranged on any the opposing party, and can be sticked in the portion that is stuck of described holding section.

According to this structure, by being arranged at the other end of accommodating cover and the holding section on any one party in the coupling member, be sticked in the portion that is stuck that is arranged on any the opposing party, can fixedly accommodate the other end and the coupling member of cover reliably.In addition, owing to, the holding section or the portion of being stuck can be installed on coupling member integratedly, therefore can cut down the parts number of packages by utilizing the part of coupling member.

The electric dust collector of the 5th technical scheme, in technical scheme four, it is characterized in that described holding section possesses: ring element, its have circular-arc portion, the jut that forms at the two ends of described circular-arc portion, and at the middle position of circular arc from described circular-arc portion towards interior side-prominent claw; Retaining member, it is by the described jut of engaging, control moving of described jut, keep described ring element thus, make this ring element not because careless and come off, and excessive deflection not, the described portion of being stuck is the drum that is formed with the slot part that described claw can be engaged on circumference, by making described ring element deflection, make described claw and described slot part diametrically at interval, thereby remove by described holding section the described engaging that is stuck portion.

According to this structure, the claw of the ring element by will being provided to the holding section is sticked in the slot part of the portion of being stuck, can fixedly accommodate the other end and the coupling member of cover reliably, described holding section is arranged on the other end and any one party in the coupling member of accommodating cover, and the described portion of being stuck is arranged on any the opposing party.In addition, be sticked in holding member by the jut that forms at the two ends of circular-arc portion, ring element is retained as not because careless and come off and lose, and not excessive deflection and plastic deformation.In addition, the slot part that makes the claw of ring element if make the ring element deflection and be stuck portion diametrically at interval, then remove by the holding section the described engaging that is stuck portion, therefore can be with easy mechanism, accommodate the fixing of the other end of cover and coupling member and remove.

Description of drawings

Fig. 1 is the right side view of theelectric dust collector 1 of one embodiment of the present invention, is the local figure that represents with section;

Fig. 2 does not makebellows 14 shrink and the right side view that carried out theelectric dust collector 1 under the vertical situation of accommodating among Fig. 1, be the local figure that represents with section;

Fig. 3 makesbellows 14 shrink and the right side view that carried out theelectric dust collector 1 under the vertical situation of accommodating among Fig. 1, be the local figure that represents with section;

Fig. 4 be used for illustratingrotating mechanism 5 when Fig. 1flexible pipe 3 does not bend, accommodatecover 10 andflexible pipe 3 want portion's right side sectional view;

Fig. 5 be used to thatretainer ring 18 is described and bestuck ring 30, Fig. 4 want portion's enlarged drawing;

Fig. 6 isstereogram retainer ring 18, that obtain from the upper right side observation of Fig. 5 and will partly separates stereogram;

Fig. 7 A be the A-A of Fig. 5 to pseudosection, be the figure that the state ofretainer ring 18 andcoupling member 16 has been fixed in expression;

Fig. 7 B be the A-A of Fig. 5 to pseudosection, be the figure that the fixing state ofretainer ring 18 andcoupling member 16 has been removed in expression;

Fig. 8 be illustrated in thebellows 14 that shrinks among Fig. 4 be contained in accommodate thecover 10 in,flexible pipe 3 is bent to about 180 ° state.

Among the figure, 1-electric dust collector; 2-deduster main body; 3-flexible pipe; 10-accommodate cover; 13-bending flexible pipe; 14-bellows; 16-coupling member; 18-retainer ring; 19-outer cover; 30-be stuck ring; 62-be stuck groove; 63-snap rings; 64-engaging pawl; 65-circular-arc portion; 66-retaining ring; 67-restriction rib.

The specific embodiment

The right side view of theelectric dust collector 1 of Fig. 1 one embodiment of the present invention is the local figure that represents with section.Below,electric dust collector 1 and inscape thereof (component parts) for convenience of explanation, if the left side of Fig. 1 for positive (front end) side, right side be the back side (rear end) side, upside be top (on) side, downside be bottom surface (descend) side, in front side be the right side, inboard be the left side, and describe.

Electric dust collector 1 comprises: dedustermain body 2,rotating mechanism 5,flexible pipe 3,pipe 6, suction tool 7 and accommodatecover 10,outer cover 19.

Dedustermain body 2 is built-in with electric blowing machine (not shown), produces attraction by this electric blowing machine.In addition, the front side of the bottom surface of dedustermain body 2 is provided with holding section 11.Be attached to ground at the back side that makes dedustermain body 2, and make positive towards ceiling, thereby when erecting so-called vertical the accommodating thatelectric dust collector 1 accommodates (with reference to Fig. 2 and Fig. 3), holdingsection 11 will be managed 6 and be remained the approximate vertical state, and be formed for embedding the shape that is provided to thehook 12 on thepipe 6.

Fig. 4 is used for illustratingrotating mechanism 5 when Fig. 1 does not bendflexible pipe 3, accommodatecover 10 andflexible pipe 3 want portion's right side sectional view.Also have, the direction of Fig. 4 is identical with the direction that defines in Fig. 1.

As shown in Figure 4,rotating mechanism 5 possesses 2 different cylinders of diameter, and the rearward end loading and unloading ofbig footpath cylinder 51 are connected in dedustermain body 2 freely, and the leading section ofpath cylinder 52 is connected in the rearward end of flexible pipe 3.And, the front inner peripheral surface ofbig footpath cylinder 51 and the mutual sliding-contact of rear end side outer peripheral face of path cylinder 52.Therefore,flexible pipe 3 is by pivoting freely with respect to dedustermain body 2 viarotating mechanism 5.

As shown in Figure 1,flexible pipe 3 fromrotating mechanism 5 towardspipe 6 possess successively connectingportion 9, as parscontractilis bellows 14,coupling member 16, as the bendingflexible pipe 13 and theoperating portion 4 of kink.

The bendingflexible pipe 13 offlexible pipe 3 andbellows 14 have flexible, can be bent into form arbitrarily.

As shown in Figure 4,coupling member 16 drum littler that be diameters than bendingflexible pipe 13 andbellows 14, be embedded in the leading section ofcoupling member 16 outward by the rearward end that will bendflexible pipe 13, and the leading section ofbellows 14 is embedded in the rearward end ofcoupling member 16 outward, bendingflexible pipe 13 andbellows 14 link mutually.

As shown in Figure 1, theoperating portion 4 that is provided to the front offlexible pipe 3 possess along the axially extendedpipe portion 17 offlexible pipe 3 and frompipe portion 17 to thehandle 15 that stretches out with the outside of axial direction of intersecting.

When controlling thehandle 15 ofoperating portion 4,flexible pipe 3 is because of the crooked place bending of its deadweight at bending flexible pipe 13.In addition, the rear end side of crooked placeflexible pipe 3, bendingflexible pipe 13 hangs down into the vertical downside.

The front end of thepipe portion 17 ofoperating portion 4 links pipe 6.Pipe 6 be link betweenoperating portion 4 and the suction tool 7 longitudinally, resinous pipe for example.Pipe 6 constitutes: with its length direction substantial middle portion is the boundary, and front (side of suction tool 7 is installed)pipe 36 coaxial shapes are contained in rear end side (being connected with a side of the operating portion 4)pipe 35, and variable-length.The length direction of frontend side pipe 36 downside midway is equipped with side-looking to be thehook 12 of " L " word shape.When above-mentioned vertical accommodating, be embedded in theholding section 11 of dedustermain body 12 byhook 12, shown in Fig. 2 and 3,pipe 6 is remaining on the dedustermain body 2 under the state upright with respect to ground, thuselectric dust collector 1 is accommodated by vertical.

Suction tool 7 comprises:housing 39, connectingcylinder 40, and connectingcylinder 40 is installed onconnect mechanism 50 on thehousing 39.

Also have, the rearend side pipe 35 ofpipe 6 can be taken fromoperating portion 4, and also the connectingcylinder 40 ofoperating portion 4 with suction tool 7 directly can be linked.

Accommodatingcover 10 is drums, and rear end side is fixed in the leading section (with reference to Fig. 4) of thepath cylinder 52 of the connectingportion 9 offlexible pipe 3 and rotating mechanism 5.Therefore, accommodatecover 10 weight and supported by dedustermain body 2, so rotate controllinghandle 15 under the situation ofelectric dust collector 1, the hand to the user that controlshandle 15 does not apply the weight ofaccommodating cover 10, thereby carries out the rotation ofelectric dust collector 1 easily.In addition, accommodate under the situation ofcover 10 front beyond when vertical accommodating, be elongated toflexible pipe 14 midway, thereby cover the back quadrate part of flexible pipe 14.The axial length of accommodating thebellows 14 undercover 10 axial length and as shown in Figure 3 the complete contraction state about equally.Therefore, when the leading section by inaccessibleflexible pipe 3 and utilize the built-in electric blowing machine (not shown) of dedustermain body 2 to reduce pressure in toflexible pipe 3, or pass through manual task, and shrink under the situation ofbellows 14, thebellows 14 that has shunk is contained in the cover in the mode of having kept its contraction state.In addition, as mentioned above,bellows 14 is rotatedmechanism 5 supporting of swaying freely.Therefore, in thebellows 14 that has shunk,, also can eliminate this and reverse by rotatingmechanism 5 even produced around the reversing of axle, therefore bellows 14 outward appearances can be contained in well and accommodate in thecover 10, thereby can make the vertical outward appearance of accommodating ofelectric dust collector 1 good.

Outer cover 19 is the drums that are made of the rubber material of cloth shape etc., and rear end side is fixed in the rearward end ofaccommodating cover 10, and leading section is fixed in the leading section (with reference to Fig. 4) ofaccommodating cover 10.

Theelectric dust collector 1 of present embodiment is characterised in that to possessflexible pipe 3, accommodatecover 10,coupling member 16 andouter cover 19, below describes in detail.

As shown in Figure 4, accommodate thecover lining portion 54 thatcover 10 possesses the high elasticforce metal wire 54 of recuperability and covers the periphery of this helix vertically.Elasticforce metal wire 53 is made of steel or resin, forms helix vertically, and the outer peripheral face of accommodatingcover 10 has mode quiltcover lining portion 54 coverings of tangible jog with the helix shape of elastic force metal wire 53.By this jog, the helix pitch of elasticforce metal wire 53 becomes clearly, by visual this helix pitch, can holdcover 10 the state of accommodating (flexible, bending etc.).Also have, also can form and shrinkcover 10 in the mode that does not have jog.Under this situation, the outer peripheral face thatshrinks cover 10 becomes smoothly, thereby outward appearance is good.In addition,resettlement section 10 forms, and the helix pitch of the elasticforce metal wire 53 in the time of usually is narrow relatively, and this pitch has the tendency of contraction under the situation that pitch broadens.Therefore, accommodatecover 10 for to have flexible helical spring, can utilize this flexible and follow the activity ofbellows 14, thereby can accommodatebellows 14 smoothly.

In bendingflexible pipe 13 andbellows 14, possesses the flexible pipe lining portion (not shown) of the periphery that forms elastic metal wire helix, that have recuperability (not shown) vertically and cover this helix vertically.Elastic metal wire (not shown) is made of steel or resin, and the outer peripheral face of bendingflexible pipe 13 andbellows 14 is covered by flexible pipe lining portion (not shown) in the mode that the helix shape of elastic metal wire (not shown) has tangible jog.By this jog, the helix pitch of elastic metal wire (not shown) becomes clearly, by visual this helix pitch, can hold the state (flexible, bending etc.) of bendingflexible pipe 13 and bellows 14.Also have, also can form bendingflexible pipe 13 andbellows 14 in the mode that does not have jog.Under this situation, the outer peripheral face of bendingflexible pipe 13 andbellows 14 becomes smoothly, thereby outward appearance is good.Bellows 14 forms, the relative broad of helix pitch of the elastic metal wire (not shown) in the time of usually, and this pitch has the tendency of broadening under the compressed situation of pitch.Bendingflexible pipe 13 forms, and the helix pitch of the elastic metal wire (not shown) in the time of usually is narrow relatively, and this pitch has the tendency of contraction under the situation that pitch broadens.Therefore, as mentioned above, bendingflexible pipe 13 andbellows 14 have flexible, can be bent into form arbitrarily.In addition, accommodatecover 10 elasticforce metal wire 53, under the situation that the helix pitch broadens with the recuperability of the mode effect of shrinking, stronger than the recuperability elastic metal wire (not shown) ofbellows 14, with the mode effect that broadens under the compressed situation of helix pitch.Therefore,compressed bellows 14 is contained in reliably and accommodates in thecover 10.

In addition, if lead (not shown) is connected up along elastic metal wire (not shown), then elastic metal wire (not shown) and the lead (not shown) byflexible pipe 3 forms circuit, therefore dedustermain body 2 andoperating portion 4 are electrically connected, by the console switch (not shown) of operation setting, can control electric blowing machine (not shown) that is built in dedustermain body 2 etc. inoperating portion 4.

In addition,bellows 14 needs to relax the performance of external force such as stretching, reverse, and with respect to this, bendingflexible pipe 13 also needs to relax the performance (bendability) to the most about 180 ° repeated flex stress except these performances.Therefore, the material of elastic metal wire (not shown) bendingflexible pipe 13 andbellows 14, that be equipped with separately and flexible pipe lining portion (not shown) is also different corresponding to the performance of needs.As mentioned above, by usingcoupling member 16, link with bendingflexible pipe 13 and thebellows 14 that constitutes by different materials.For directly not link bendingflexible pipe 13 andbellows 14 and to make its (integrated) continuously via the mode ofcoupling member 16, the material of bendingflexible pipe 13 andbellows 14 must be identical, under this situation, select to form the material of the high price that bendsflexible pipe 13, the performance project that described bendingflexible pipe 13 requires is than bellows more than 14.Therefore, if usecoupling member 16, then can form bendingflexible pipe 13 andbellows 14 with different materials, the situation that directly links bendingflexible pipe 13 andbellows 14 with not usingcoupling member 16 is compared, and can makeflexible pipe 3 at an easy rate.

As shown in Figure 2, be attached to ground at the back side that makes dedustermain body 2, with its front towards ceiling, in addition, withpipe 6hook 12 embed dedustermain bodys 2holding section 11 and erectly engagingpipe 6, under the vertical state of accommodating,flexible pipe 3 bends because of deadweight.At this moment, the superior bendingflexible pipe 13 of above-mentioned bendability becomes the crooked place of flexible pipe 3.And thebellows 14 offlexible pipe 3 is crooked significantly.

Therefore, by for example making electric blowing machine (not shown) action of dedustermain body 2 under the state of the leading section etc. of thehousing 39 of suction tool 7 in the front ofblock service portion 4 and reducing pressure in toflexible pipe 3, shrink bellows 14.Also have, also can shrinkbellows 14 by manual task.So as shown in Figure 3, thebellows 14 that has shunk is contained in and shrinks in thecover 10, bendingflexible pipe 13 is bent to about 180 ° in above-mentioned crooked place, therefore can accommodateflexible pipe 3 compactly, thereby the vertical outward appearance of accommodating ofelectric dust collector 1 is good.

As shown in Figure 5, accommodatecover 10 front end and be equipped withretainer ring 18 as the holdingsection.Retainer ring 18 is equipped with: theshell 55 of drum; Theretaining ring 66 as retaining member of the drum that is connected with the front end ofshell 55; Remain in thesnap rings 63 as ring element of retaining ring 66.As shown in Figure 6,snap rings 63 is equipped with: vertical profile is looked circular-arc 65 that is " C " word shape; Middle position on the circumference of circular-arc 65 inner peripheral surface be projected into radially inner side, as the engaging pawl 64 (with reference to Fig. 7 A) of claw; Each two ends on the circumference of identical inner peripheral surface be projected into radially inner side, as therestriction rib 67 ofjut.Restriction rib 67 possessesnarrow width part 69 and at thewide width part 70 of radially inner side andnarrow width part 69 adjacency, if observe from circular-arc 65 tangential direction, then is from roughly " T " word shape of the inner peripheral surface setting ofsnap rings 63 at circular-arc 65 inner peripheral surface.

And, outsidesnap rings 63, be embedded on theretaining ring 66 under the maintained state, retainingring 66, with engagepawl 64 opposed circumference on the position, be formed with the throughhole 61 that radially connects retainingring 66, with position on therestriction rib 67 opposed circumference, be formed with 2guide parts 68 accordingly withrestriction rib 67.

Guide part 68 possesses: be recessed into radial outside and be therecess 71 of quadrangle shape under interior view at the inner peripheral surface ofretaining ring 66; Recess 71 at the quadrangle shape forms in the mode that connects opposed two pairs both sides, radially connects retainingring 66 and be thecross recess 72 of cross shape under interior view.The degree of depth radially ofrecess 71 equates with the thickness radially of thewide width part 70 ofrestriction rib 67 or is bigger than it, the axial length ofrecess 71 and the axial equal in length ofwide width part 70 or bigger than it.Cross recess 72 be equipped with form this cross shape, 1circumferencial direction groove 73 and 1axial groove 74,circumferencial direction groove 73 andaxial groove 74 intersect at the middle position of separately length direction.The axial equal in length ofnarrow width part 69 of the axial length ofcircumferencial direction 73 andrestriction rib 67 or big than it, and lack than the axial length of wide width part 70.The axial length ofaxial groove 74 equates with the axial length ofwide width part 70 or is bigger than it, the circumferencial direction equal in length of circumferencial direction length andnarrow width part 69 andwide width part 70 or bigger than it.Thus,restriction rib 67 can radially connectaxial groove 74.

And, be embedded in bywide width part 70retaining ring 66guide part 68axial groove 74 and be sticked in the inner peripheral surface ofrecess 71, suppressrestriction rib 67 and radially move.With respect to this,, therefore limitrib 67 and also in equidirectional and scope, slide freely becausenarrow width part 69 along the circumferential direction slides freely in the scope of the circumferencial direction length of circumferencial direction groove 73.So, after makingrestriction rib 67 be sticked inguide part 68, shown in Fig. 7 A, make thesnap rings 63outer retaining rings 66 that are embedded in.Simultaneously, the engaging pawl ofsnap rings 63 64 connects the throughhole 61 ofretaining rings 66, expose at the inner peripheral surface ofretaining ring 66, and outstanding towards the radially inner side ofretaining ring 66.

In addition, as shown in Figure 5,coupling member 16 be equipped with the drum that covers periphery on the ground of devices spaced apart radially, bestuck ring 30 as what be stuck portion.Also have, bestuck ring 30 and together bring into play function as fixed component with retainer ring 18.Coupling member 16 and to bestuck ring 30 fixing by screw element etc. at separately axial middle position.Bestuck ring 30 rear end and be provided with the recess that forms in its outer peripheral face ring-type promptly as the portion that is stuck 62 of slot part.

The diameter ratio of theretaining ring 66 ofretainer ring 18 isstuck groove 62 and isstuck ring 30 big.As shown in Figure 8, be contained at thebellows 14 that has shunk and accommodate in thecover 10,flexible pipe 3 is bent under about 180 ° state, and retainingring 66 andsnap rings 63 outer being embedded in arestuck ring 30 and arestuck groove 62, engagingpawl 64 is sticked in is stuck groove 62.Thus, accommodatecover 10retainer ring 18, be positioned at beingstuck ring 30 and possessing thecoupling member 16 that isstuck ring 30 and be fixed reliably of front end of bellows 14.Therefore,bellows 14 elongations of restriction contraction state are restored, and can accommodate reliably under the state that shrinksbellows 14 thereby accommodate cover 10.In addition, as mentioned above, for theengaging pawl 64 at 1 position on being provided to circular-arc 65 the circumference of inner peripheral surface, bypaperboard groove 62 owing to be ring-type, therefore can be by the engaging engaging of the optional position on the circumference ofpaperboard groove 62 pawl 64.Therefore, do not needengaging pawl 64 and bestuck groove 62 to carry out contraposition, thereby can fixedly accommodate theretainer ring 18 and thecoupling member 16 ofcover 10 simple and reliablely.Also have, under the state of fixedlyretainer ring 18 andcoupling member 16, limitrib 67 and be positioned atcircumferencial direction groove 73, circular-arc 65 circumferencial direction ora terminalis side (with reference to Fig. 6).Therefore,restriction rib 67 is becausewide width part 70 is sticked in the inner peripheral surface ofrecess 71 all the time, and therefore mobile being suppressed radially do not come off fromaxial groove 74, thus the anxiety that does not existsnap rings 63 to lose.

In addition, shown in Fig. 7 A, therestriction rib 67 ofsnap rings 63 is slided in a circumferential direction towards center of arc's (direction of arrow of Fig. 7 A) of circular-arc 65.The slip ofrestriction rib 67 stops at theengaging pawl 64 side edge of circumferencial direction 73.Thus, the earth opening of comparing before vertical profile is looked thesnap rings 63 that is " C " word shape and circular-arc 65 is slided, radially deflection simultaneously, engagingpawl 64 diametrically bestuck groove 62 at interval.Be equivalent to the slippage along the circumferential direction ofrestriction rib 67 is converted into the length that radially obtains at this interval that isstuck groove 62 and engaging pawl 64.And, be accompanied byengaging pawl 64 and be stuck the interval ofgroove 62 relatively, remove theretainer ring 18 of accommodatingcover 10, be stuck the fixing ofring 30 and coupling member 16.Also have,, therefore do not have restriction rib 67 excessive slip, cause the anxiety ofsnap rings 63 deflections until plastic deformation because above-mentioned slippage is set to engagingpawl 64 with respect to the minimum desired value at 62 intervals that produce that are stuck groove.So, by possessingsnap rings 63, retainingring 66 and being stuck the easy mechanism ofgroove 62, can encircle 18, be stuck the fixing and fixing releasing ofring 30 andcoupling member 16.

In addition, the outer peripheral face ofaccommodating cover 10 is formed with above-mentioned jog, and this outer peripheral face is covered byouter cover 19 and is not exposed to the outside, and outward appearance is kept the contraction state ofbellows 14 well thus.And thecover 10 of accommodating that is covered byouter cover 19 is not fettered by its outward appearance, can play the effect of accommodating bellows 14.Therefore, also can comprise the various changes of following outward appearance freely, that is, accommodatecover 10, be used to play the effect of accommodatingbellows 14 and the outward appearance of needs.In addition, also can give design arbitrarily, can further improve the outward appearance of the contraction state ofbellows 14 thusouter cover 19.

Also have, in the above description,retainer ring 18 is provided to accommodates on thecover 10, will bestuck ring 30 and be provided on theflexible pipe 3, but alsoretainer ring 18 can be provided on theflexible pipe 3,snap rings 30 is provided to accommodates on the cover 10.In addition, can be not yet withretainer ring 18 and bestuck ring 30 and be provided to and accommodate betweencover 10 and thecoupling member 16, accommodate betweencover 10 and therotating mechanism 5 and they are provided to.

In addition, in the above description, be provided withrotating mechanism 5 betweenflexible pipe 3 and the dedustermain body 2, but also can betweenflexible pipe 3 andoperating portion 4, be equipped with.In addition,flexible pipe 3 also can be with respect tooperating portion 4 loading and unloading freely.

The present invention is not limited to the content of above embodiment, can carry out all changes in the described scope of claim.

Claims (5)

1. an electric dust collector is characterized in that,

Possess: the deduster main body, it is built-in with electric blowing machine;

Has flexible flexible pipe, it has the pars contractilis that is disposed at described deduster main body side and is in elongation state usually the time, constitutes and be disposed at respect to described pars contractilis with being integral kink, and the coupling member of an end of the other end of the described pars contractilis of binding and described kink of the opposition side of described deduster main body in addition with described pars contractilis, and an end of described pars contractilis can be connected in described deduster main body with loading and unloading; And

Drum accommodate cover, the one end is connected in the described distolateral of described pars contractilis, cover described pars contractilis around, and when described pars contractilis shrinks, accommodate the described pars contractilis of contraction.

2. electric dust collector as claimed in claim 1 is characterized in that,

Possesses the outer cover of accommodating the drum that covers of cover on every side with described.

3. electric dust collector as claimed in claim 1 or 2 is characterized in that,

Possess loading and unloading and fix the described other end of cover and the fixed component of described coupling member of accommodating freely.

4. electric dust collector as claimed in claim 3 is characterized in that,

Described fixed component comprises: be arranged at the described other end of cover and the holding section on any one party in the described coupling member of accommodating; And

Be arranged on any the opposing party, and can be sticked in the portion that is stuck of described holding section.

5. electric dust collector as claimed in claim 4 is characterized in that,

Described holding section possesses:

Ring element, its have circular-arc portion, the jut that forms at the two ends of described circular-arc portion, and at the middle position of circular arc from described circular-arc portion towards interior side-prominent claw;

Retaining member, it controls moving of described jut by the described jut of engaging, keeps described ring element thus, makes this ring element not because careless and come off, and excessive deflection not,

The described portion of being stuck is the drum that is formed with the slot part that described claw can be engaged on circumference,

By making described ring element deflection, make described claw and described slot part diametrically at interval, remove by described holding section the described engaging that is stuck portion.

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