CN1102369C - Electric dust collector - Google Patents

Abstract

To provide an electric vacuum cleaner in which current feed to the electric component of a suction tool for floor can be made certainly even if an extension hose is expanded or contracted, by forming the extension hose from a major diametric pipe and a minor diametric pipe which are fitted to each other with possibility of mutual sliding, furnishing a current feeding conductor at the periphery of the major pipe, and furnishing a current feeder at the periphery of the minor pipe. An extension hose is composed of a major diametric pipe 12 and a minor diametric pipe 13, which are fitted to each other with possibility of mutual sliding. If the operating part 14 is pushed to vary the length of this extension hose, a resilient stopper piece of a stopping tool 17 spreads to cause slipping-off from detaining recess furnished at the peripheral surface of the major diametric pipe 12. With this condition held, the minor pipe 13 is drawn out of the major 12 for a certain length, and the push on the operating part 14 is ceased, and now the stopper piece will be fitted in the mating recess, and the extension hose itself is fixed with this length. At this time, the current feeder 34 of the minor pipe 13 forms an electric circuit at all times because a cylinder 35 moves within the cover 26 of the major pipe 12 and a terminal plate 38 slides on a current feeding conductor 22 with their contacted condition maintained.

Description

Electric dust collector

The invention technical field

The present invention relates to have the electric dust collector that prolongs pipe, this prolongation pipe has the structure of suction filter power supply earthward, and ground is with the electric components such as motor that roll brush drives usefulness are housed in the suction filter.

Background technology

Original a kind of example with the electric dust collector that prolongs pipe is shown in the spy and opens in the flat 1-310626 communique, and wherein this prolongation pipe has the structure of the ground suction filter power supply that electric components such as roll brush drive motor inwardly are housed.Figure 34 is for prolonging the major part profile of pipe, Figure 35 is for prolonging the oblique view of pipe, in the drawings, 201 is the prolongation pipe of retractable, by can in axial direction sliding over each other and chimeric large diameter pipe 202 and narrow tube 203, and the adjustment utensil 205 with the fastening appliance 204 that can freely adjust large diameter pipe 202 and narrow tube 203 length when both are chimeric constitutes, 206 is a pair of plate that is connected and fixed that is located at the conductive material system at narrow tube 203 end outer surface places, the one end links to each other with electric wire 207 in being embedded in narrow tube 203,208 is to be located at inner surface place, large diameter pipe 202 end, when prolong pipe 201 when the longest respectively electrically elasticity be arranged on the aforementioned a pair of a pair of connection movable platen that is connected and fixed the conductive material system on the plate 206, the one end joins with the electric wire 209 that is embedded in the large diameter pipe 202.If be connected and fixed the outer surface end that plate 206 is not located at narrow tube 203, then be connected and fixed plate 206 and be connected movable platen 208 and just can not connect when the longest prolonging pipe 201, so as shown in figure 35, be provided with several at the outer surface of narrow tube 203 and be connected and fixed plate 206, and in order to prevent that being connected and fixed plate 206 is exposed to the outside and the people is got an electric shock, also be provided with the multiple parts 210 of lid being connected and fixed plate 206 places, and available adjustment utensil 205 is adjusted the length that prolongs pipe 201 voluntarily according to user's height.

Yet, because original scalable prolongation pipe 201 is the multiple parts 210 of lid to be set respectively being connected and fixed plate 206 places, so not only make complex structure, and in use, often there is the air that contains dust in prolonging pipe 201, to pass through at a high speed, this can because of and prolong and to produce friction between pipe 201 inwalls static takes place, this static can make the charged indoor suspending dust that prolongs pipe 201 places and manage attached to prolongation on 201 the inner and outer wall by prolonging trickle dust in the pipe 201.Therefore, on the multiple parts 201 of lid, also can be attached with dust, so have the problem that can hinder multiple parts 210 on-off actions of lid.And, charged static gas have can near conductive material, discharge character, so, such as electric wire 207,209 is for control during with the holding wire of microcomputer (being designated hereinafter simply as microcomputer), static gas may destroy microcomputer, and then produces danger.

Prolong pipe 201 and tend to collide, produce distortion and make to cover again parts 210 and be connected and fixed plate 206 grades with furniture or the like, even breakage, so have the on-off action of the multiple parts 210 of obstruction lid, and then produce the problem of danger such as electric shock.

Summary of the invention

Purpose of the present invention will address the above problem exactly, the prolongation pipe can freely be stretched as required, power supply power supply body and this expanding-contracting action interlock, and then can realize reliably to the electric component power supply that is provided with the ground suction filter, simultaneously can prevent that dust from attached on the aforementioned power supply body, improving its life-span and security.Collide with furniture or the like even prolong pipe, also can prevent to power and use the distortion and the breakage of conductor, and then improve its security.

In electric dust collector of the present invention, has main body of dust collector, the flexible pipe that the one end links to each other with this main body of dust collector, the prolongation pipe that is connected with this flexible pipe other end, be connected with this prolongation pipe front end and in the ground suction filter of electric component such as motor is housed, and aforementioned prolongation pipe has with the mode tabling that can slide over each other, large diameter pipe and the narrow tube that can on random length, fix, its longitudinal direction disposes the power supply conductor that is electrically connected with aforementioned main body of dust collector or aforementioned ground suction filter in aforementioned large diameter pipe outer peripheral face upper edge, on aforementioned narrow tube outer peripheral face, be provided with in aggregates with it, along its longitudinal direction and the power supply utensil that is separated with outer peripheral face, in this power supply utensil, dispose the lead that the one end is electrically connected with aforementioned ground suction filter or aforementioned main body of dust collector, and the other end of this lead with electrically contact with conductor with aforementioned power supply and slidable terminal board is connected.

In another kind of electric dust collector of the present invention, has main body of dust collector, the flexible pipe that one end and main body of dust collector join, the prolongation pipe that is connected with this flexible pipe other end, the ground suction filter of electric component such as motor is housed in being connected with this prolongation pipe front end, and aforementioned prolongation pipe has and can slide over each other and chimeric, large diameter pipe and the narrow tube that can fix at the random length place, the power supply that on aforementioned large diameter pipe outer peripheral face, disposes along the longitudinal direction, on aforementioned narrow tube outer peripheral face, be provided with in aggregates with it, along its longitudinal direction and the charger that separates with outer peripheral face, aforementioned power supply has the power supply conductor that is electrically connected with the main body or the aforementioned ground suction filter of aforementioned dust catcher, with along this power supply with conductor setting and topped thereon multiple parts of lid, aforementioned charger disposes the one end and is electrically connected with aforementioned ground suction filter or aforementioned main body of dust collector, the other end and the lead that is connected with terminal board that aforementioned power supply electrically contacts with conductors slide.

In above-mentioned electric vacuum cleaner, on the large diameter pipe outer peripheral face, be provided with the costal margin that moves with conductor leading end daughter board along power supply.

In above-mentioned electric vacuum cleaner, charger one end be fixed on the narrow tube end and the other end slidably intercalation remain in the pilot hole that is formed on the multiple parts end of large diameter pipe lid.

In above-mentioned electric vacuum cleaner, the outer end diameter of narrow tube equates substantially with the external diameter of large diameter pipe, and when the prolongation pipe was short status, the outer end diameter of aforementioned narrow tube contacted with the end face of aforementioned large diameter pipe.

In another electric vacuum cleaner of the present invention, has main body of dust collector, the flexible pipe that one end and this main body of dust collector join, join with this flexible pipe other end and have the prolongation pipe of can slide over each other chimeric large diameter pipe and narrow tube, aforementioned large diameter pipe and narrow tube can be remained on the retainer on the random length, with aforementioned prolongation pipe front end join in the ground suction filter of electric components such as motor is housed, the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has the power supply that is set up in parallel along aforementioned large diameter pipe longitudinal direction, receive with sliding type automatically with the one end and to be contained in the aforementioned power supply and the other end is fixed on the charger of aforementioned narrow tube end, on aforementioned power supply body, be provided with and be used to prevent brace that aforementioned power supply and charger be separated and be connected the joint portion.

In above-mentioned electric dust collector, brace is formed on the charger, connects the joint portion and is formed on the power supply, and also be formed with the releasing portion that connects on power supply.

In another electric dust collector of the present invention, has main body of dust collector, the flexible pipe that the one end links to each other with this main body of dust collector, link to each other with this flexible pipe other end, prolongation pipe with can slide over each other chimeric large diameter pipe and narrow tube, aforementioned large diameter pipe and narrow tube can be remained on the retainer at random length place, join with aforementioned prolongation pipe front end and in the ground suction filter of electric components such as motor is housed, the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has the power supply that is set up in parallel along aforementioned large diameter pipe longitudinal direction, receive from the mode of can move freely with an end and to be contained in aforementioned give in the electric portion and the other end is fixed on the charger of the aforementioned flexible pipe side end of aforementioned narrow tube, on aforementioned power supply, also be provided with the holding plate that is used to keep aforementioned retainer, and the latter maintains aforementioned charger can be free to slide mode.

In another kind of electric dust collector of the present invention, has main body of dust collector, the flexible pipe that the one end links to each other with this main body of dust collector, link to each other with this flexible pipe other end, have the large diameter pipe of and rounded section chimeric and the prolongation pipe of narrow tube with the form that can slide relatively, aforementioned large diameter pipe and narrow tube can be remained on the retainer at random length place, in the ground suction filter of the electric components such as motor that join with aforementioned prolongation pipe front end is housed, the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has its two ends and is packed in the power supply connector at aforementioned large diameter pipe two ends and one end and slidably receives and be contained in aforementioned power supply connector place and the other end is packed in the charger of aforementioned narrow tube end.

In above-mentioned electric dust collector, the power supply body is located at the rear side that prolongs pipe.

In another electric dust collector of the present invention, has main body of dust collector, the flexible pipe that the one end is connected with this main body of dust collector, the prolongation pipe that joins with this flexible pipe other end, link to each other with this prolongation pipe front end and in the ground suction filter of electric component such as motor is housed, aforementioned prolongation pipe have can slide over each other chimeric, can be fixed on the large diameter pipe and the narrow tube at random length place, be set side by side with at aforementioned large diameter pipe outer peripheral face place along its longitudinal direction and a pair of power supply conductor that is electrically connected with the electric component of aforementioned main body of dust collector or aforementioned ground suction filter, the one end has the terminal board that slidably joins with conductor with aforementioned power supply, and its other end with and aforementioned narrow tube outer peripheral face between have a predetermined space mode be packed in the charger at place, aforementioned narrow tube end and the movable platen that slides in the predetermined space that can between aforementioned charger and narrow tube, form.

In another electric vacuum cleaner of the present invention, has main body of dust collector, the flexible pipe that the one end links to each other with this main body of dust collector, join with this flexible pipe other end and have and to slide mutually and the chimeric large diameter pipe and the prolongation pipe of narrow tube, aforementioned large diameter pipe and narrow tube can be remained on the retainer at random length place, join with the front end of aforementioned prolongation pipe and in the ground suction filter of electric components such as motor is housed, the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has the power supply that is set up in parallel along aforementioned large diameter pipe longitudinal direction, receive and be contained in aforementioned power supply and the other end is packed in the charger of aforementioned narrow tube end can be free to slide mode with an end, the place is provided with some fitting portions that are used for chimeric aforementioned retainer at aforementioned power supply body.

The present invention has following effect

According to the present invention, even because of the relative slip with narrow tube of large diameter pipe changes the long tube that prolongs pipe, also can make the electric loop that is formed on prolongation pipe place stably be in connection status, the user will prolong pipe and be adjusted to predetermined length, and promptly available roll brush is implemented cleaning.

According to the present invention, the power supply that is configured in large diameter pipe outer peripheral face place is topped by the multiple parts of lid with conductor, so the user does not have the danger of electric shock, do not have power supply that dust etc. does well attached to revealing with on the conductor yet, thereby can keep reliably and the electrically contacting of terminal board etc.

According to the present invention, be provided with along the costal margin of power supply with conductor leading end daughter board, thus the slip of terminal board smoothly and not can be come off with conductor from power supply, thus can not produce problems such as electric loop interrupts halfway.

According to the present invention, the charger that is located at the narrow tube place can be inserted by the targeting port place of the multiple parts end of the lid that is located at large diameter pipe, so flexible operation that can prolong pipe smoothly, and can stop its rotational action, fix its axially movable simple structure thereby the fixed mechanism that prolongs pipe can only be had.

According to the present invention, when the prolongation pipe was in short status, each end of large diameter pipe and narrow tube did not project into the part of its outer peripheral face, so even colliding to prolong manages, can reduce its impaired possibility yet.

According to the present invention, has the power supply body that is electrically connected with ground suction filter and flexible pipe, the latter has and the parallel power supply that is provided with of large diameter pipe longitudinal direction, slidably receive with an end and to be contained in power supply and the other end is packed in the charger of narrow tube end, be used to prevent the retention tab that power supply and charger are separated and keep the joint portion owing on the power supply body, be provided with, so when the prolongation pipe is extended, it is separated also can to prevent to prolong pipe really, and can prevent that the electric connector that is formed on power supply body place from exposing to the outside.

According to the present invention, because retention tab is formed on the charger place, keep the joint portion to be formed on the power supply place, and also be formed with the releasing portion that keeps at power supply, thus when waiting when needing the separation prolongation to manage, need not separate each component parts for keeping in repair, thus very convenient.

According to the present invention, in power supply, be provided with the holding plate that can be free to slide to charger, so can guarantee the electrical connection of charger and power supply, no matter how the prolongation pipe stretches, and all can guarantee energising, and, holding plate also can maintain retainer, so help to reduce parts.

According to the present invention, when adjusting rounded large diameter pipe of section and narrow tube when stretching, be formed on the peripheral part place of large diameter pipe and narrow tube because of the power supply body, so can stop its around the movement, make expanding-contracting action along straight line and smoothly carry out, thus can be along straight line and implement electrical connection in the power supply body smoothly, reliably.

According to the present invention, at cleaning time delay long tube can with this phenomenon of colliding with such as furniture, the power supply body be located at prolonged the rear of pipe, so prevented direct collision power supply body with electrical connection section, thereby can prevent its damaged and distortion, and realize energising reliably.

According to the present invention, be at a distance of the predetermined space place power supply body to be set at the narrow tube peripheral part and with it, and be provided with the movable platen that can slide in this space, even so stagger along mutually at when cleaning power supply body and furniture etc., this movable platen also can prevent the body deformability of powering, that is to say the electric connection of the electrical connection section in the body that can guarantee really to power.

According to the present invention, be provided with several and the fitting portion of retainer tabling at power supply body place, so but the multistage the adjustment of stretching.And do not need guiding mechanism is set in addition, manage miniaturization thereby help to make to prolong.

According to the present invention, because of being provided with corrugated part at the charger place, thus even just in case there is external force to add to charger, also can be by the opening to stretch and sponge external force of corrugated part, thus can guarantee not make charger etc. to be subjected to breakage.

According to the present invention, because of charger is formed by soft material, so even just in case there is external force to add to charger, also the flexibility of available soft material sponges external force, thereby the situations such as breakage that can prevent charger take place.

According to the present invention, because of being provided with the reinforcement plate that constitutes by elastomer in power supply body inside, even so just in case there is external force to be applied to charger, also can sponge external force by the distortion of reinforcement plate, and because when external force was eliminated, this element can restore to original shape, so even be subjected to the external force effect repeatedly, breakage can not take place, thereby have durability yet.

Brief Description Of Drawings

In above-mentioned electric dust collector, on charger, be provided with corrugated part.

In above-mentioned electric dust collector, charger is formed by soft material.

In above-mentioned electric dust collector, charger inside is provided with the reinforcement plate that is made of elastomer.

Fig. 1 is the whole oblique view of the electric dust collector of expression embodiment of the present invention 1.

Fig. 2 is the side view of the prolongation pipe of expression embodiment 1.

Fig. 3 is the profilograph of the prolongation pipe of expression embodiment 1.

Fig. 4 is the structural map of the major part of the prolongation pipe of expression embodiment 1.

The profile of Fig. 5 for cutting open along V-V line among Fig. 3.

The profile of Fig. 6 for cutting open along VI-VI line among Fig. 3.

The profile of Fig. 7 for cutting open along VII-VII line among Fig. 3.

Fig. 8 is the side view during short status for the prolongation pipe of expression embodiment 1 is in.

Fig. 9 is the oblique view of the prolongation pipe of expression embodiment 1.

Figure 10 is the oblique view of the prolongation pipe of expression embodiment 2.

Figure 11 is the side view during short status for the prolongation pipe of expression embodiment 2 is in.

Figure 12 is the profilograph of the prolongation pipe of expression embodiment 2.

The profile of Figure 13 for cutting open along I-I line among Figure 12.

The profile of Figure 14 for cutting open along I-I line among Figure 12.

The profile of Fig. 15 for cutting open along II-II line among Figure 12.

Figure 16 is the plane of the large diameter pipe major part of expression embodiment 2.

Figure 17 is the oblique view of holding plate in the expression embodiment 2.

Figure 18 is the profile of the prolongation pipe major part of expression embodiment 2.

Figure 19 is the oblique view of the charger major part of expression embodiment 2.

Figure 20 is the charger of expression embodiment 2 and the pie graph of retainer.

Oblique view when Figure 21 extends for the prolongation pipe of representing embodiment 3.

Oblique view when Figure 22 shortens for the prolongation pipe of representing embodiment 3.

Profile when Figure 23 extends for the prolongation pipe of representing embodiment 3.

Figure 24 is the oblique view of the prolongation pipe of expression embodiment 4.

Figure 25 is the oblique view of the major part of prolongation pipe in inhaling inswept journey of expression embodiment 4.

Figure 26 is the oblique view of the major part of prolongation pipe in inhaling inswept journey of expression embodiment 5.

Oblique view when Figure 27 shortens for the prolongation pipe of representing embodiment 5.

Figure 28 is the oblique view of the prolongation pipe of expression embodiment 6.

Figure 29 is the profile of the prolongation pipe of expression embodiment 6.

Figure 30 is the side view of the prolongation pipe of expression embodiment 6.

Figure 31 is the profile of the prolongation pipe of expression embodiment 7.

Figure 32 is the profile of the prolongation pipe of expression embodiment 7.

Figure 33 is the oblique view of the reinforcement plate of expression embodiment 7.

Figure 34 is the profile of the major part of the original prolongation pipe of expression.

Figure 35 is the oblique view of the original prolongation pipe of expression.

The implication of each reference number is in the accompanying drawings:

1 main body of dust collector, 2 mains cords, 3 suction inlets, 4 flexible pipes, 5 hose main bodies, 6 insert mouthful 7 handle portions, 8 remote switch, and 9 ground suction filters, 11 prolong pipe, 12 large diameter pipes, 13 narrow tubes, 14 operating portions, 15 keep recess, 16 elasticity retention tabs, 17 retainers, 22 power supply conductors, 23 leads, the multiple parts of 26 lids, 27 pilot holes, the 30 chimeric ends of using, the end is used in 32 connections, 33 connect recessed, 34 chargers, 35 cylindrical shells, 38 terminal boards, 39 leads, 41 prolong pipe, 42 large diameter pipes, 43 narrow tubes, 46 power supplies, 47 pilot holes, 49 guide plates, 52 chargers 53 are in conjunction with releasing portion, 56 terminal boards, 58 leads, 59 connecting pins, 67 retainers, 71 large diameter pipes, 72 narrow tubes, 76 large diameter pipes, 77 retainers, 78 narrow tubes, 80 chargers 82 prolong pipe, and 83 in conjunction with projection, 84 chargers, 90 prolong pipe, 91 large diameter pipes, 92 narrow tubes, 95 power supplies, 98 guide plates, 101 chargers, 102 corrugated parts, 105 terminal boards, 107 leads, 112 reinforcement plates, 113 slotted holes, 114 keep pin.

The specific embodiment

Embodiment 1

The embodiment 1 of electric dust collector of the present invention is described below with reference to Fig. 1-Fig. 9.In the drawings, 1 is equipped with the main body of dust collector of electric fan in being, 2 is mains cord, and 3 is suction inlet, 4 is flexible pipe, and the latter is made of with the handle portion 7 of implementing the insertion mouth 6 that connects and being located at the other end the hose main body 5 of soft material system, the inserted suction inlet 3 that is located at hose main body one end.8 for being located at the remote switch of handle portion, and it is by being configured on the flexible pipe 4 electric fan that not shown remote loop control is connected with main body of dust collector and the action of roll brush described later.

9 is the ground suction filter, and it is supporting the not shown roll brush near the suction inlet place of lower aperture, and in be equipped with and drive the miniature motor (not shown) that roll brush is used.10 for being located at the display lamp above the suction filter of ground.

11 serve as reasons can slide and prolongation pipe that chimeric large diameter pipe 12 and narrow tube 13 constitute along the longitudinal direction relatively, on narrow tube 13 outer peripheral faces, also be formed with some row maintenance recesses 15 of two every group at a distance of predetermined space along its longitudinal direction, at a side end place of drawing narrow tube 13 of large diameter pipe 12, also be provided with the retainer 17 that constitutes by operating portion 14 and a pair of elasticity retention tab 16 that can combine with a pair of maintenance recess 15.18 is the reduced end that is located at large diameter pipe 12 1 end places that joins with handle portion 7, is provided with a pair of connecting pin 19 towards end face in its peripheral part projection, and has liner 20.22 is that the pair of plates shape power supply that is configured in the outer peripheral face place of large diameter pipe 12 along the longitudinal direction uses conductor, one end to be connected with connecting pin 19 by lead 23, and the other end stretches near the retainer 17 always.

24 is the guiding costal margin that parallels with conductor 22 with each power supply.It leads to the sliding action that is located at the terminal board at narrow tube 13 places described later, and power supply is carried out electric insulation with conductor.26 for being fixed on the multiple parts of lid on large diameter pipe 12 outer peripheral faces, its lid is multiple at retainer 17, power supply is with conductor 22 and above the lead 23, is formed with the pilot hole 27 of the charger that is used to insert narrow tube 13 on the end face of retainer side, and is formed with guiding costal margin 28 within it above the side.29 for pushing down the spring of retainer 17 from the top.30 ends of when large diameter pipe 12 is chimeric, using for narrow tube 13, be equipped with on its outer peripheral face be used to seal up and large diameter pipe 12 inner peripheral surfaces between the sealing ring 31 in gap.32 use the end for connections narrow tube 13 the other end places, that inner peripheral surface is expanded state, and it is connected with ground suction filter 9, and this end face portion be provided be connected with the not shown connecting pin of floor suction device 9 be connected recessed 33.

34 are provided with for separating with narrow tube 13 outer peripheral faces, the charger that stretches along its longitudinal direction, the one end is fixed on connection 32 places, end of narrow tube 13, the other end is by answering the cylindrical shell 35 at pilot hole 27 places of parts 26 at the lid of large diameter pipe 12 to insert state support, the a pair of power supply that is fixed on place, this cylindrical shell end with its front end is with conductor 22 contacted link daughter boards 38, and be configured in the cylindrical shell 35 with terminal board 38 and is connected lead 39 formations of recessed 33 electrical connection.40 are answering end that connects recessed 33 and cylindrical shell 35 and the loam cake that remains on the cylindrical shell end for lid, and the outer end diameter that contains the outer end diameter of narrow tube 13 of this loam cake and the large diameter pipe 12 relative with it is unanimous on the whole.

Electric dust collector with this structure, when needs change the prolongation length of tube, can depress the operation part 14 of retainer 17, make the elasticity retention tab 16 of retainer 17 be the enlarged state distortion, and from the maintenance recess 15 that is located at large diameter pipe 12 side faces, extract, remain on this state, and narrow tube 13 pulled out from large diameter pipe 12 to suitable length, remove the moving part of depressing then to functional unit 14, make elasticity retention tab 16 embed corresponding the maintenance in the recess 15, self be fixed on this length thereby will prolong pipe.At this moment, the charger 34 of narrow tube 13 will be answered in the parts 26 mobile along the longitudinal direction of cylindrical shell 35 at the lid of large diameter pipe 12 by targeting port 27.The terminal board 38 that is arranged on leading section to be moving thereon with the state that conductor 22 keeps in touch with a pair of power supply, thereby stably constitutes by connecting pin 19 to the electric loop that connects recessed 33.

Like this, can form by main body of dust collector 1 through flexible pipe 5, prolongation pipe 11 electric power loops to ground suction filter 9.Thereby be contained in the miniature motor in the ground suction filter 9 in can driving, roll brush is rotated.Even change the length that prolongs pipe 11, the terminal board 38 of the charger 34 of narrow tube 13 also can keep often contacting with conductor 22 with the power supply of large diameter pipe 12, thereby can stably form the electric power loop of ground suction filter 9.The air stream that contains dust is at a high speed by prolonging pipe 11 inside, generation static gas between the inside pipe wall face can prolonged, so tend to make prolongation pipe self charged, and can produce harmful effect with conductor and lead to the electronic units such as microcomputer that are located at the control loop in main body of dust collector 1 and the handle portion 7 by power supply.Here, prolong pipe and self make, so can carry out air discharge to charged static gas by prolonging tube-surface by conductive materials such as aluminium, stainless steel, graphite fibres.In the present invention at this moment, also manage outer peripheral face at a distance of preset distance, so can further reduce the influence of static gas because of lead with prolongation.

And, receipts are equipped with the cylindrical shell of lead at least managing the relative part place of outer peripheral face with prolongation, are usefulness, such as implement plastic electroplating at drum surface, or the mode of metal film forms, so can further suppress to prolong charged static gas in the pipe to the influence of lead.

When not using the prolongation pipe, can foreshorten to short status with prolonging pipe, at this moment coincide each other between the opposed end of large diameter pipe 12 and narrow tube 13, the end face that is loam cake 40 and the multiple parts 26 of lid of large diameter pipe 12 of narrow tube 13 matches, and because the external diameter shape basically identical of each end, thereby make to prolong pipe not from the part of outer peripheral face projection, so can prevent from when laying state, to occur damaged accident.

In sum, if adopt embodiment 1,, also can make to be formed on the electric loop that prolongs the pipe place and to be in stable connection status even then slippage large diameter pipe and narrow tube change the length that prolongs pipe.So the user will prolong pipe and adjust to predetermined use length, promptly available roll brush cleans.

Because of the power supply that is configured in large diameter pipe outer peripheral face place is being answered with the multiple piece cover of conductor tegmentum, so the user does not have the danger of electric shock, and owing to the power supply that is exposed state with can not being attached with dust on the conductor, so can guarantee and the electrically contacting of terminal board.

Owing to be provided with along power supply and the costal margin that the leading end daughter board moves be set,, thereby electric loop is interrupted halfway so it is level and smooth that terminal board is slided, and can not come off with conductor from power supply with conductor.

Because being located at the cylindrical shell at narrow tube place can insert in the pilot hole that is located at the multiple parts end face of large diameter pipe ground lid, so can prolong the flexible operation of pipe smoothly, and owing to suppressed its rotational action, so availablely only fix the mode that it in axial direction moves, and constitute the fixed mechanism that prolongs pipe simply.

Because when prolonging pipe and being contracted to short status, each end face of large diameter pipe and narrow tube does not all have the part of projection to outer peripheral face, therefore, even some collides with, is unlikely to damage to prolong yet and manages.

And, even large diameter pipe is located at ground suction filter side, narrow tube is located at handle side, also can obtain same effect.

Embodiment 2

The electric dust collector of embodiments of the present invention 2 is described below with reference to Figure 10-Figure 20.

In the drawings, 41 are the prolongation pipe chimeric, retractable that can slide relatively along the longitudinal direction, it is by the large diameter pipe 42 of plastic material moulding, with the section of making by conductive materials such as stainless steel or aluminium be that circular narrow tube 43 constitutes, the chimeric recess 44 that is formed on large diameter pipe 42 1 end places detachably is inlaid on the suction filter of ground.The fitting projection 45 that is formed by plastic material that is fixed on narrow tube 43 other ends detachably is inlaid on the handle portion.46 for being integrally formed in the power supply on large diameter pipe 42 tops along the longitudinal direction, and the one end has pilot hole 47, and the other end has a pair of connection recess 48, and portion also has a pair of guide plate 49 that is made of the conductive material along its total length parallel lay-up within it.One end of this a pair of guide plate 49 is electrically connected with the aforementioned recess 48 that is connected respectively.

50 is last guiding costal margin, and 52 are the costal margin that leads down, and they parallel and constitute power supply 46 with guide plate 49 respectively, and charger 52 described later can be slided by straight-line guidance in power supply 46.The power supply body that is electrically connected with ground suction filter and flexible pipe is made of power supply 46 and charger described later 52,53 for the side with respect near the power supply 46 the pilot hole 47 form in conjunction with releasing portion, be used to remove the combination of large diameter pipe and narrow tube.Charger 52 is made the corner post shape by non-conducting material, stretch in the predetermined space 54 of narrow tube 43 along the longitudinal direction, and the one end is fixed on the top of fitting projection 45, and the other end is movable end 55, is received by pilot hole 47 and is contained in power supply 46 places.56 is what install with respect to movable end 55, the pair of end daughter board that forms by conductive material, its part is contact U-shaped portion 57, expose from movable end 55 in couples, and join with guide plate 49 elasticity respectively, 58 for receiving the couple of conductor that is contained on the charger 52, and the one end is electrically connected with terminal board 56, and the other end is electrically connected with a pair of connecting pin 59 that is contained in fitting projection 45 tops.

60 is the retention tab that the side extending projection by the movable end 55 of charger 52 forms, when movable end 55 when targeting port 47 is embedded in, the sidewall that can be directed to hole 47 is pushed down and is moved to the inside, after being embedded in power supply 46 projection is restored.61 for being formed on the connection joint portion in the pilot hole 47, and it can prevent that movable end 55 from deviating from from pilot hole 47, and as the retainer of retention tab 60.62 for toward each other, the attachment recess opening and equidistantly form along the longitudinal direction of charger 52 by the sidewall spacers of charger 52.63 for being formed on the discharge space between narrow tube 43 ends and the connecting pin 59, when attract by electric fan, with the static gas that rubs mutually and produce by the high-speed air in the narrow tube 43, the narrow tube 43 that conductive material is made is charged, and when institute's carried charge reaches predetermined value, implement the nature discharge by discharge space 63 with connecting pin 59.64 prevent the sealing ring that extraneous air enters for being located at narrow tube 43 two ends.

65 is holding plate.It across with a pair of guide plate 49 of power supply 46 parallel lay-ups near above the end of targeting port 47 1 sides, and and its at a distance of preset distance, its substantially central portion also be provided with relative notch 66.This preset distance equates with the height of charger 52 basically.67 for being located at the retainer at power supply 46 places, and it remains on the holding plate 65 by compression spring 68, and its below is positioned at notch 66 places, and the bottom has respect to one anotherly, can be chimeric goes into the tabling piece 69 of attachment recess 62.

Electric dust collector with aforementioned structure, at the beginning can be as shown in figure 10, assembling prolongs pipe 41, its action as shown in figure 13, one side is depressed retainer 67 one sides and is inserted, the movable end 55 of charger 52 is inserted into power supply 46 by targeting port 47, at this moment, retention tab 60 is being pressed the sidewall of pilot hole 47, the interior location of power supply 46 is outwards enlarged under this resilient force, decontrol retainer 67 in this state, then as shown in figure 14, tabling piece 69 will embed attachment recess 62, fix large diameter pipe 42 and narrow tube 43.And, even depressing retainer 67, user mistake makes when prolonging also long that ratios that pipe 42 prolongs need, retention tab 69 also can combine with keeping joint portion 61, and prevents that it from deviating from from pilot hole 47.

Prevent that the mechanism that comes off is not limited only to retention tab 60 and keeps joint portion 61, it also can be to manage 41 and be stretched to specific length when above when retainer 67 is in mode of operation and prolongs, and can prevent other mechanism that large diameter pipe 42 and narrow tube 43 are separated.

When for keeping in repair etc. will decompose the time, can operate retainer 67 and will prolong pipe 41 and be adjusted to maximum length, one side is inserted with instruments such as screwdrivers and is kept releasing portion 53 to push down retention tab 60, and one side is pulled up narrow tube 43 come.That is to say, owing to formed the mechanism that divides the elongated segment pipe, so when waiting and not need with the structure member separation, so very convenient when prolonging pipe and separate for keeping in repair at power supply body place.

Prolong the length adjustment of pipe 41, can be as shown in figure 13, one side is depressed retainer 67, one side moves to predetermined length with narrow tube 43, as shown in figure 14, decontrol retainer 67, make tabling piece 69 be moved upward and embed attachment recess 62 by compression spring 68, fix large diameter pipe 42 and narrow tube 43, thereby can carry out length adjustment easily.

Then, when cleaning, can respectively flexible pipe and prolongation pipe 41 and ground suction filter be connected on the main body line that on microcomputer, plugs in, operating power switch, electric fan on the driving main body and the electric component on the suction filter of ground.Ground dust will be picked up in the lump with air, pass the ground suction filter and prolong pipe 41 and flexible pipe thereof, and dust will be kept here in main body, and only cleaned air is discharged.At this moment, owing to be provided with connector, can directly not contact with charger with power supply so contain the suction air of dust in prolongation pipe periphery.

If adopt embodiment 2, body is not positioned at the outer peripheral face place of the prolongation pipe 41 of the retractable that passes through facing to the high-speed air flow that contains dust owing to structurally power, make dust can directly not contact and constitute the guide plate 49 of power supply body and the electric connector of terminal board 56, so, can prevent poor electric contact that is produced because of adhering to of dust and phenomenons such as the corrosion generation of adhering to the aforementioned electric connector that is produced because of wet dust.In the movable end 55 of charger 52, also be provided with the retention tab 60 that can prevent that charger 52 from coming off from power supply 46, so, when prolonging pipe 41 elongations, can prevent easily that also narrow tube 43 from coming off from large diameter pipe 42.That is to say, owing to be formed with the mechanism that the parts that can prevent to constitute the power supply body are thrown off on the body in power supply, so when prolonging pipe and extend, the separation that also can prevent to prolong pipe reliably.

Because supply is that electric portion 46 is located at the outside that terminal board 56 exposes part, so can prevent from when user etc. contacts it, to take place the sensation of electric shock, and can prevent the distortion of terminal board 56, and, because terminal board one end is fixed on narrow tube 43 places, the other end is received dress and is supported in power supply 46 places, so when making expanding-contracting action etc., also can be used as the stop component of large diameter pipe 42 and narrow tube 43.

When prolonging pipe 41 and be in the prolongation state for keeping in repair etc. when needing prolongation pipe 41 separated, can making.Removing the combination of 61 of retention tab 60 and maintenance joint portions simply from peripheral operation maintenance releasing portion 53, so, can easily implement to separate.When implementing to separate, because of giving prominence to more forward than movable end 55 end of narrow tube 43, so narrow tube 41 and large diameter pipe 42 still were in chimerism when the power supply body separated, can not impose on the power supply body so be accompanied by twisting resistance that detached job produces or the like, so can prevent charger 52 distortion, and make detached job be very easy to implement.And assembling the prolongation pipe at 41 o'clock, and also be that first end with narrow tube 43 is inserted into large diameter pipe 42, the assembling of the body of powering again is so it has the effect identical with detached job.

When charger 52 slided in power supply 46, the air in the power supply 46 can be powered device 52 compressions and hinder moving of charger 52, but because can be with air from keeping releasing portion 53 to discharge, so can make the gliding smoothing of charger 52.And the discharge portion of air also can not be located at power supply 46 places.

Prolong the flexible adjustment of pipe 41, can utilize along narrow tube 43 longitudinal direction settings, be formed on charger 52 peripheries and along several attachment recess 62 of its longitudinal direction, with depressing retainer 67, and at the predetermined length place, decontrol retainer 67 again, the chimeric mode of going into attachment recess 62 of tabling piece 63 is implemented.That is to say, when the prolongation pipe is stretched adjustment, because of on the power supply body, being formed with several guiding mechanisms, so the adjustment but multistage ground stretches because of no longer needing to be provided with other guiding mechanism, is managed miniaturization so have in making to prolong.

Like this, because narrow tube 43 and charger 52 are that whole interlock moves, so available eyes are easily judged the length of adjustment, make that operation is simple and reliable, and no longer need with other parts formation attachment recess 62.And, because of need on prolongation pipe 41, flexible guiding mechanism not being set, manage 41 miniaturizations so help to make to prolong.The chimeric form of retainer 67 and charger 52 is not limited only to this embodiment, so long as can utilize the operation of retainer 67, retainer 67 and charger 52 is got final product with detachable mode tabling.

And, near pilot hole 47 power supply 46 places, also be provided be connected across on the guide plate 49, its inside to be can being free to slide the holding plate 65 that mode is supporting charger 52, so adjust when prolonging pipe 41 when flexible, can guarantee that terminal board 56 slides on guide plate 49.That is to say no matter the electric component that the ground suction filter is had prolongs pipe 41 and how to prolong, all guarantee energising on guide plate 49 because of terminal board 56 can slide reliably.Because holding plate 65 is supporting retainer 67 by compression spring 68.Be equipped with special parts so be no longer necessary for installation retainer 67, help to reduce parts.

And, even narrow tube is located at ground suction filter one side, large diameter pipe is located at the handle portion side, also can obtain effect same.Embodiment 3

Below by Figure 21-embodiment 3 shown in Figure 23, illustrate that the another kind of the prolongation pipe of retractable constitutes.Have with above-mentioned embodiment in the parts of same function, illustrate no longer accordingly.71 is to make with conductive materials such as stainless steel or aluminium, the rounded large diameter pipe of section of the narrow tube 43 of circular section is slidably being supported in its inside, 72 is to be packed in large diameter pipe 71 1 end places, detachably be entrenched in the chimeric recess on the suction filter of ground, 73 for being fixed on the intermediate connection portion of large diameter pipe 71 other ends, 74 is that its two ends are packed in fitting portion 72 and intermediate connection portion 73 tops respectively, the power supply receiving portion made from non-conductive plastics, portion is provided with the receipts dress space 75 that is used for slidably receiving dress charger 52 within it, and going back parallel lay-up at the place, bottom surface in this receipts dress space 75 has pair of conductive plate 49.The power supply body is packed in by its two ends that power supply receiving portion 74 on the large diameter pipe 71 and an end slidably are bearing in power supply receiving portion 74 places and the other end is packed in the charger 52 at place, narrow tube 43 ends and constitutes.

501 for being formed on the discharge space of 71 of guide plate 49 and large diameter pipes, because of high-speed air passes the static gas that large diameter pipe 71 is produced, to make large diameter pipe 71 charged, when it reaches capacity state, can carry out the nature discharge to guide plate 49 energisings easily.Retainer 67 is received and is contained in intermediate connection portion 73 places, and have can be with attachment recess 62 tablings that are located at charger 52 places, tabling piece 69 as shown in figure 20.And compression spring 68 is contained between retainer 67 and the power supply receiving portion 74, can chimeric mode supporting tabling piece and attachment recess 62.

If adopt embodiment 3, then because at all rounded large diameter pipe 71 of section and the peripheral part of narrow tube 43, constitute the power supply body with other parts, so when prolongation pipe 70 is made expanding-contracting action, can stop the hoop motion of large diameter pipe 71 and narrow tube 43 by the power supply body, and be undertaken along straight line and level and smooth moving by power supply body guiding.

And, if can be along straight line and carry out expanding-contracting action smoothly, more can be and implement electrical connection in the power supply body smoothly, reliably along straight line.

By the level and smooth slip of 52 of power supply receiving portion 74 and chargers, can realize reliably being electrically connected.And after using; can be as shown in figure 22; shrink prolongation pipe 70 and carry out general receipts dress, utilize the space 54 that is located at narrow tube 43 places, charger 52 can be received the power supply receiving portion 74 of packing in the mode of whole peripheral surface; like this; because the power supply body has duplex, can increase its mechanism's intensity, locates just in case drop to ground etc.; also can protect electrical connection section, thereby have higher security.

And, even large diameter pipe is located at handle portion one side, narrow tube is located at ground suction filter one side, also can obtain same effect.

Embodiment 4

Figure 24 is the oblique view of prolongation pipe of the retractable of embodiment 4, the oblique view of Figure 25 during for the expression user mode.In the drawings, 76 is large diameter pipe, and its below (back) is provided with power supply 46 along the longitudinal direction, and retainer 77 is equipped with in its (front) end, top.78 narrow tubes for the circle made with conductive materials such as metal or graphite blanks, its end is fixed with fitting projection 79, and its top (front) is fixed with a pair of connecting pin 59, and below (back) is fixed with charger 80.The other end of charger 80 is slidably received and is contained in the power supply 46, and its inside is provided with terminal board and lead, and lead and connecting pin 59 join.81 for being formed on several attachment recess of narrow tube 78 tops, it can with retainer 77 with detachable mode tabling, prolong pipe with flexible the adjustment.

If adopt embodiment 4, owing to be provided for receiving power supply 46 and the charger 80 of adorning electric connecting part at the large diameter pipe 76 and narrow tube 78 back sides, so, as shown in figure 25, in use, such as below cleaning table sub-district the time, it easily and large diameter pipe and narrow tube 78 collide, but can preventing power supply 46 and charger 80, the present embodiment is out of shape because of collision, thus safe and reliable.That is to say, on the prolongation pipe that collides with furniture or the like easily in when cleaning, the power supply body is placed on the rear that prolongs pipe, can prevent direct collision to power supply body with electrical connection section, thus can prevent its breakage and be out of shape, thus can switch on reliably.

And as shown in the figure, large diameter pipe 76 is provided in a side of ground suction filter one side and narrow tube 78 is provided in a side of handle portion one side, but also narrow tube can be located at ground suction filter one side, and large diameter pipe is located at handle portion one side.

Embodiment 5

Oblique view when the oblique view when Figure 26 is in user mode for the prolongation pipe of representing embodiment 5, Figure 27 prolong the pipe contraction for expression.82 for prolonging pipe, and 83 is fitting projection, and the latter is packed in the end of narrow tube 43.84 is the charger that is made of minor diameter 85 and large-diameter portion 86, it is positioned at the top of narrow tube 43, be fixed on the top of fitting projection 83 along the minor diameter 85 of these narrow tube 43 longitudinal directions, the end of large-diameter portion 86 is slidably received and is contained in the power supply 46.87 for being formed on the mobile space between narrow tube 43 and the minor diameter 85.88 for leaning on from focusing on the movable platen that mobile space 87 easy on and off move, and it movably remains on minor diameter 85 places.89 is to be receipts dress movable platen receipts dress 88 usefulness, that be located at fitting projection 83 places space when prolonging pipe 62 contractions.

If adopt embodiment 5, then in user mode as shown in figure 25, movable platen 87 will be moved to large-diameter portion 86 by deadweight by the minor diameter 85 of receiving dress space 89 sides, contact and stop with the large-diameter portion 86 that is in charger 84 central authorities substantially.In this state, even use charger, because movable platen 87 is between charger 84 and narrow tube 43, so can prevent the distortion of charger 84 to narrow tube 43 sides just in case there is external force to act on.When not using, as shown in figure 27, movable platen 87 can be received to be contained in and receive in the dress space 89, because the end of large diameter pipe 42 and fitting projection 83 are for no gap joint, so can receive dress compactly.

That is to say, owing to be the power supply body to be set, and the movable platen that can slide in this space is set, so even furniture etc. collides the power supply body in cleaning, also available movable platen prevents the body deformability of powering with the narrow tube peripheral part predetermined space place that is separated by.Can ensure the electric connection of connecting portion in the power supply body really.

And can as shown in the figure large diameter pipe 42 be located at ground suction filter one side, and narrow tube 43 is located at handle portion one side, but also large diameter pipe can be located at handle one side, narrow tube is located at ground suction filter one side.

Embodiment 6

Figure 28-Figure 30 shows embodiment 6, in the drawings, 90 are the prolongation pipe chimeric each other, retractable that can slide along the longitudinal direction, it is by constituting with the large diameter pipe 91 of plastic material moulding with the rounded narrow tube 92 of the section of conductive material moulding such as stainless steel or aluminium, and the chimeric recess 93 that is formed on large diameter pipe 91 1 end places is entrenched on the suction filter of ground in detachable mode, be packed in narrow tube 92 other end places, be entrenched in handle portion with the fitting projection 94 of plastic material moulding in detachable mode.95 for being integrally formed in the power supply at place, large diameter pipe 91 tops along the longitudinal direction, and the one end has pilot hole 96, and the other end has a pair of connection recess 97, and there is a pair of guide plate 98 that is made of conductive material in portion along the total length parallel lay-up within it.And, an end of a pair of guide plate 98 respectively be connected recess 97 electricity in succession.

99 is last guiding costal margin, and 100 are the costal margin that leads down, and they parallel and form power supply 95 with guide plate 98 respectively, and guide charger 101 described later linear slide in power supply 95, and the power supply body is made of power supply 95 and charger described later 101.101 is charger, it is made by non-conducting material and is the corner post shape, and portion is formed with corrugated part 102 in the central substantially, and charger 101 extends along the longitudinal direction of narrow tube 92, and with narrow tube 92 at a distance of predetermined space 103, the one end is fixed on the top of fitting portion 94.104 for being arranged on the movable end 104 of charger 101 the other end, and it is received by pilot hole 96 and is contained in the power supply 95.105 are the relative pair of end daughter board that installs and make of conductive material with movable end 104, and one portion exposes from movable end 104 in couples, and flexibly is arranged on the guide plate 98 for contact U portion 106, is electrically connected with the latter.

107 is an end and terminal board 105, and the other end is electrically connected with a pair of connecting pin 108 that is contained in fitting projection 94 tops and can freely scratches couple of conductor in the wrong.As shown in figure 30, even apply external force W to charger 101, charger 101 is upheld, this tension force can not feed through to terminal board and connecting pin 108 yet, though changing, the length of lead 107 is contained in the charger 101 by receipts, 109 for being arranged on the retainer at power supply 95 places, and quadrate part is can free chimeric mode being entrenched in the embeded slot 110 down for it, and embeded slot 110 equidistantly is formed on the periphery of narrow tube 92 in couples.But 111 for supporting the compression spring of retainer 109 with yo-yo fashion.

For electric dust collector with said structure, can be as shown in figure 28 during beginning, assembling prolongs pipe 90.The available retainer 109 of depressing, simultaneously narrow tube 92 is inserted into large diameter pipe 91 and the movable end 104 of charger 101 is inserted into power supply 95 by pilot hole 96, the mode that it is led by the last guiding costal margin 99 and the costal margin 100 that leads down and in power supply 95, slide, implement This move, pair of end daughter board 105 can flexibly be arranged on the guide plate 98 and with it respectively and be electrically connected.And, when reaching Len req, decontrol retainer 109, make that retainer 109 is chimeric goes in the embeded slot 110, and fix large diameter pipe 91 and narrow tube 92.

If adopt above-mentioned embodiment 6, at the outer peripheral face of the prolongation pipe 90 of retractable the power supply body is not set owing to face the stream that the high-speed air that contains dust passes through, so dust can't directly contact with guide plate 98 that constitutes the power supply body and the electric connector of terminal board 105 or the like, so can prevent because of dust adheres to the loose contact that is produced, and can prevent the corrosion of adhering to the electric connector that is produced because of moist dust.

Owing on a part that is located at the power supply body that prolongs pipe 90 outer peripheral face places, be provided with corrugated part 102, so when in cleaning, colliding with furniture etc. because of error, even as shown in figure 30, applied external force W to the power supply body, but, impacts and external force W corrugated part 102 because can extending and absorb, so can prevent the distortion of terminal board 105 electric connectors such as grade, and can sponge to prolonging the impulsive force of pipe 90.That is to say, because the part of charger constitutes corrugated part, so even just in case there is external force to be applied to charger, also can sponge external force because of the extension of corrugated part, thereby can guarantee to prevent the generation of situation such as charger breakage.

When corrugated part 102 is upheld, receive the leads 107 that are contained in the charger 101 and also will uphold equally, so the terminal board 105 that joins with lead 107 ends can not be subjected to the influence of tension force, so can prevent phenomenon such as broken string with corrugated part 102.

If constitute the charger 101 that forms the power supply body with soft material that can free deflection, then can lean on the flexibility of self to absorb external force, thereby prevent the generation of situation such as breakage, can obtain effect identical when corrugated part is set like this.

And, be located at ground suction filter one side if will prolong the narrow tube of pipe, large diameter pipe is located at handle portion one side, also can obtain same effect.

Embodiment 7

Figure 31-Figure 33 is the profile of the prolongation pipe of the retractable of expression embodiment 7.In the drawings, 112 for receive be contained in the charger 101 by the reinforcement plate that has elasticity and be made of metal, one end and charger 101 are packed in the top of fitting projection 94 in the lump, and the other end slidably is installed in 104 places, movable end to have on the maintenance pin 114 of slotted hole 113.115 distortion of being out of shape upward for the reinforcement plate 112 that prevents in the charger 101 stop plate, and it also is formed in the charger 101.

If adopt embodiment 7, in the time the prolongation pipe will being adjusted to Len req, can simultaneously depress retainer 109, one side is pressed into large diameter pipe 91 with narrow tube 92, and the charger 101 and the reinforcement plate 112 that make the one end be packed in fitting projection 94 places respectively move in power supply.At this moment, because charger 101 is made by soft material, it can be out of shape and make the level and smooth difficulty that moves, but because reinforcement plate 112 can help moving of charger 101, so can make it the same with narrow tube 92, work is mobile smoothly.And, when reaching predetermined length, decontrol retainer 109, fix large diameter pipe 91 and narrow tube 92.

Even in use do not fill out certain external force W be applied to charger 101, shown in figure 32, charger 101 distortion that will in power supply 95, be moved, reinforcement plate 112 will make and keep pin 114 to move in slotted hole 113 and distortion, thereby, can sponge external force W, and prevent self breakage.And after external force W eliminates, reinforcement plate 112 will restore.That is to say, owing to be provided with reinforcement plate at the charger place, so, even there is external force to be applied to charger, the distortion of also reliable reinforcement plate and sponge external force, and, since external force when eliminating this element can restore and be original shape, even also can be not damaged, thereby can improve its durability so be subjected to the external force effect repeatedly.

Because lead 107 mixed receipts are contained in the charger 101, even so there is external force to be applied to charger 101, make charger 101 distortion and extend, this tension force is applied on the lead that is provided with by predetermined length, only can be with former loose part tensioning, and can not be broken, so it is any unusual that the electrical connection of attaching parts such as the terminal board 105 that is connected with its two ends and connecting pin 108 is produced, so just in case be applied with external force W, also can guarantee to prolong the electrical connection of pipe 90, thereby have reliable security.

Claims (18)

1. electric dust collector, it is characterized in that it has main body of dust collector, the flexible pipe that the one end links to each other with this main body of dust collector, the prolongation pipe that links to each other with this flexible pipe other end, with with this prolongation pipe front end join in the ground suction filter of electric component such as motor is housed, and aforementioned prolongation pipe has can be by relative slip chimeric and can be fixed on the large diameter pipe and the narrow tube at random length place, its longitudinal direction disposes the power supply conductor that is electrically connected with aforementioned main body of dust collector or aforementioned ground suction filter in aforementioned large diameter pipe outer peripheral face upper edge, on aforementioned narrow tube outer peripheral face, be provided with in aggregates with it, along its longitudinal direction and the charger that is separated with outer peripheral face, in this charger, dispose the lead that the one end is electrically connected with aforementioned ground suction filter or aforementioned main body of dust collector, and the other end of this lead joins thereon with the terminal board that contacts with conductor with aforementioned power supply and can slide.

2. electric dust collector, it is characterized in that it has main body of dust collector, the prolongation pipe that the flexible pipe that one end and main body of dust collector join and this flexible pipe other end join, with with this prolongation pipe front end join in the ground suction filter of electric component such as motor is housed, and aforementioned prolongation pipe have can be by sliding over each other chimeric and at the random length place fixing large diameter pipe and narrow tube, on aforementioned large diameter pipe outer peripheral face, dispose power supply along the longitudinal direction, the place is provided with in aggregates with it at aforementioned narrow tube outer peripheral face, along its longitudinal direction and the charger that is separated with outer peripheral face, aforementioned power supply has the power supply conductor that is electrically connected with aforementioned main body of dust collector or aforementioned ground suction filter, use conductor arrangement and the multiple parts of the multiple lid thereon of lid with powering along this, aforementioned charger disposes the one end and is electrically connected with aforementioned ground suction filter or aforementioned main body of dust collector, the other end and the lead that joins with terminal board that aforementioned power supply electrically contacts with conductors slide.

3. electric dust collector as claimed in claim 1 is characterized in that being provided with at large diameter pipe outer peripheral face place the costal margin that moves with conductor leading end daughter board along power supply.

4. electric dust collector as claimed in claim 2 is characterized in that being provided with the costal margin that guides aforementioned terminal board to move with conductor along aforementioned power supply at large diameter pipe outer peripheral face place.

5. electric dust collector as claimed in claim 2 is characterized in that an end of aforementioned charger is fixed on the narrow tube end, and the other end slidably is inserted in the pilot hole of the end that is formed at the multiple parts of large diameter pipe lid.

6. as any described electric dust collector among the claim 1-4, the outer end diameter that it is characterized in that aforementioned narrow tube equates with the external diameter of large diameter pipe, and when the prolongation pipe was short status, the outer end diameter of aforementioned narrow tube contacted with the end face of aforementioned large diameter pipe.

7. electric dust collector, it is characterized in that it has main body of dust collector, the flexible pipe that one end and this dust catcher join, join with this flexible pipe other end, have the large diameter pipe chimeric and the prolongation pipe of narrow tube by relative slip, aforementioned large diameter pipe and narrow tube can be remained on the retainer on the random length, with aforementioned prolongation pipe front end join in the ground suction filter of electric components such as motor is housed, and the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has the power supply that is set up in parallel along the vertical aspect of aforementioned large diameter pipe, receive and be contained in the aforementioned power supply and the other end is fixed on the charger of aforementioned narrow tube end can be free to slide mode with the one end, on aforementioned power supply body, be provided with and be used to prevent brace that aforementioned power supply and charger be separated and be connected the joint portion.

8. electric dust collector as claimed in claim 7 is characterized in that brace is formed on the charger, connects the joint portion and is formed on the power supply, and also be formed with the releasing portion that connects on power supply.

9. electric dust collector, it is characterized in that it has main body of dust collector, the flexible pipe that one end and this main body of dust collector join, join with this flexible pipe other end, have the large diameter pipe chimeric and the prolongation pipe of narrow tube by relative slip, aforementioned large diameter pipe and narrow tube can be remained on the retainer of random length, with aforementioned prolongation pipe front end join in the ground suction filter of electric components such as motor is housed, and the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has the power supply that is set up in parallel along aforementioned large diameter pipe longitudinal direction, slidably receive with an end and to be contained in the aforementioned power supply and the other end is fixed on the charger of the aforementioned flexible pipe side end of aforementioned narrow tube, on aforementioned power supply, also be provided with the holding plate that slidably remains on aforementioned power supply place and can maintain aforementioned retainer.

10. electric dust collector, it is characterized in that it has main body of dust collector, the flexible pipe that one end and this main body of dust collector join, join with this flexible pipe other end, have the rounded large diameter pipe of the section chimeric and the prolongation pipe of diameter tube by relative slip, aforementioned large diameter pipe and narrow tube can be remained on the retainer of random length, with aforementioned prolongation pipe front end join in the ground suction filter of electric component such as moving motor is housed, and the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has its two ends and is packed in the power supply recipient at aforementioned large diameter pipe two ends and one end and slidably receives and be contained in aforementioned power supply recipient place and the other end is packed in the charger at place, aforementioned narrow tube end.

11. electric dust collector as claimed in claim 7 is characterized in that aforementioned power supply body is located at the rear side of aforementioned prolongation pipe.

12. electric dust collector as claimed in claim 9 is characterized in that aforementioned power supply body is located at the rear side of aforementioned prolongation pipe.

13. electric dust collector as claimed in claim 10 is characterized in that aforementioned power supply body is located at the rear side of aforementioned prolongation pipe.

14. electric dust collector, it is characterized in that it has main body of dust collector, the flexible pipe that the one end is connected with this main body of dust collector, the prolongation pipe that joins with this flexible pipe other end, with with this prolongation pipe front end join in the ground suction filter of electric component such as motor is housed, and aforementioned prolongation pipe has can be chimeric by sliding relatively, and can be fixed as the large diameter pipe and the narrow tube of random length, be set side by side with along it aspect vertical at aforementioned large diameter pipe outer peripheral face place, the a pair of power supply conductor that is electrically connected with the electric component of aforementioned main body of dust collector or aforementioned ground suction filter, the terminal board that the one end has slidably and aforementioned power supply is joined with conductor and the other end with and aforementioned narrow tube outer peripheral face between be packed in the charger at place, aforementioned narrow tube end and the movable platen that slides in the predetermined space that can between aforementioned charger and narrow tube, form at a distance of the mode of predetermined space.

15. electric dust collector, it is characterized in that it has main body of dust collector, the flexible pipe that the one end links to each other with this main body of dust collector, join with this flexible pipe other end, have the large diameter pipe chimeric and the prolongation pipe of narrow tube by mutual slip, aforementioned major diameter and narrow tube can be remained on the retainer on the random length, with aforementioned prolongation pipe front end join in the ground suction filter of electric components such as motor is housed, and the power supply body that is electrically connected with aforementioned ground suction filter and flexible pipe, and aforementioned power supply body has the power supply that is set up in parallel along aforementioned large diameter pipe longitudinal direction, slidably receive with an end and to be contained in aforementioned power supply and the other end is packed in the charger at aforementioned narrow tube end place, also be provided with at aforementioned power supply body place some can with the fitting portion of aforementioned retainer tabling.

16., it is characterized in that being provided with corrugated part at aforementioned charger place as any described electric dust collector in the claim 1,2,7,9,10,14,15.

17., it is characterized in that aforementioned charger is formed by soft material as any described electric dust collector in the claim 1,2,7,9,10,14,15.

18., it is characterized in that aforementioned charger inside is provided with the reinforcement plate that is made of elastomer as any described electric dust collector in the claim 1,2,7,9,10,14,15.

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