CN209404602U - Dust catcher - Google Patents

Abstract

A kind of dust catcher, including dust collecting container, external air entrance, by the closed closing valve of external air entrance when in detent position, the valve rod that closing valve can be removed from detent position, to generate the solenoid module of electromagnetic driving force to valve rod, solenoid module is equipped with the through channel for guiding stem movement through solenoid module, valve rod is at least partly arranged in the through channel, valve rod has initial position, stroke end position, valve opening position between initial position and stroke end position, it is at least partially disposed in through channel when any position of the valve rod between initial position and stroke end position, valve rod is separated in initial position with closing valve, valve rod can contact when moving to valve opening position with the closing valve in detent position, valve rod is closed valve in stroke end position and has been removed from detent position.This programme realizes valve rod to the impact type valve opening of closing valve guided.

Description

Dust catcher

[technical field]

The utility model relates to a kind of dust catchers.

[background technique]

Dust catcher is common cleaning equipment, has the function of separating the rubbish such as dust, clast from air, existing suction The valve-opening mechanism of dirt device generally includes solenoid module and valve rod, and valve rod and closing valve connect together, the electricity after energization Magnetic coil module generates electromagnetic driving force, driving stem movement to valve rod, and valve rod drives the closing valve for being connected in valve rod to move together Valve is opened or closed, is designed in this way, valve rod is equal to and starts together to movement from static together with closing valve, to valve rod Starting Capability Requirement it is excessively high, be unfavorable for open closing valve.

[utility model content]

The utility model provides a kind of dust catcher of impact type valve opening that set valve rod can guide closing valve.

In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of dust catcher, including dust hold Device, external air entrance, when being in detent position by the closed closing valve of external air entrance, can will close valve from detent position Valve rod, the solenoid module to generate electromagnetic driving force to valve rod removed, solenoid module, which is equipped with, runs through electromagnetic wire The through channel for guiding stem movement of module is enclosed, valve rod is at least partly arranged in the through channel, and valve rod has initial Position, stroke end position, the valve opening position between initial position and stroke end position, valve rod is in initial position and stroke It is at least partially disposed in through channel when any position between end position, valve rod is separated in initial position with closing valve, valve Bar can contact when moving to valve opening position with the closing valve in detent position, and valve rod closes valve in stroke end position from envelope Closed position is removed.

Valve rod is separated in initial position with closing valve in this programme, and valve rod is under electromagnetic drive and under through channel guiding It moves in advance from initial position, rather than starts together with closing valve, the valve rod of movement can generate closing valve biggish Impact, and the dual function of stem movement is driven and guided based on solenoid module, realize valve rod guiding to closing valve Impact type valve opening.

Further, valve rod includes the first end being always positioned at except solenoid module, valve rod first end and closing valve Positioned at the two opposite sides of solenoid module, relative to valve rod in valve opening position and stroke end position, valve rod is in initial position When its described first end it is farther apart from solenoid module.It is designed in this way, solenoid module can be improved, electromagnetism is generated to valve rod The effect of driving force, the impact force of poppet stem.

Further, dust catcher further includes the first elastic component valve rod to be held in initial position, the first elastic component It is sheathed on valve rod, between solenoid module and valve rod first end, one end of the first elastic component presses on the first elastic component Solenoid module.It is designed in this way, it is opposite effectively to limit valve rod by the first elastic component that one end presses on solenoid module In the position of solenoid module.

Further, valve rod is equipped with the flange being located at except solenoid module, and the first elastic component is pressed to electromagnetic wire It encloses between module and flange, the first elastic component is the intermediate spring being gradually reduced to both ends radial dimension.First elastic component is similar Spindle can reduce the pressure of the first elastic component and height.

Further, valve rod includes the second end opposite with first end, valve rod its described second end position in initial position In in solenoid module through channel, valve rod in stroke end position, the second end be located at solenoid module it The outer and described first end and second end are located at the two opposite sides of solenoid module.

Further, valve rod be equipped with can it is magnetisable section magnetized by solenoid module, can not be by solenoid module magnetic Change can not magnetised section, magnetisable section and can not magnetised section be fixed together, magnetisable section be located at can not magnetised section and closing valve Between, magnetisable section has a head end and tail end opposite on stem movement direction, tail end be located at can not magnetised section and head end it Between, valve rod in initial position, can not magnetised section be at least partially disposed within solenoid module, valve rod is in stroke end position When, can not magnetised section be at least partially disposed at except solenoid module.It is designed in this way and is more effectively driven conducive to solenoid module Ovable valve stem, by setting can not magnetised section be conducive to impact of the enhancing to closing valve, if can not magnetised section replace with magnetisable, lead Cause valve rod that closer to the equilbrium position relative to solenoid module, the solenoid module in valve rod travel can be reduced on the whole To total driving energy of valve rod, the impact force of valve rod is caused to reduce.

Further, magnetisable section of the center position between the opposite end on stem movement direction is always positioned at electricity The center position between the opposite end on stem movement direction of magnetic coil module through channel and between closing valve, or Person, valve rod in stroke end position, magnetisable section of center position between the opposite end on stem movement direction with The center position overlapping between the opposite end on stem movement direction of solenoid module through channel.It is designed in this way, Magnetisable section of basic guarantee is always without promoting magnetisable section to move down across the equilbrium position relative to solenoid module The electromagnetic driving force direction that the solenoid module being powered in the process generates magnetisable section is along the direction of motion, to be conducive to Valve rod has biggish impact capacity.

Further, magnetisable section of head end and closing valve are located at the two opposite sides of solenoid module, magnetisable section of head end Be always positioned at except solenoid module, valve rod in stroke end position, tail end be located at except solenoid module and with head End is located at the two opposite sides of solenoid module, and for valve rod in stroke end position, tail end is beyond electricity on stem movement direction The distance of magnetic coil module is less than the distance that head end exceeds solenoid module.Be designed in this way can basic guarantee in valve rod to stroke It is consistent to move direction for the magnetisable section of electromagnetic driving force being subject in end position moving process, thus guarantee valve rod can have compared with Big impact capacity.

Further, in initial position, tail end is located within solenoid module valve rod.

Further, valve rod is in initial position, can not magnetised section be fully located within solenoid module.

Further, magnetisable section with can not magnetised section be coaxially disposed.

Further, when valve rod moves to valve opening position can not magnetised section can be contacted in the closing valve of detent position, valve Bar be by can not magnetised section push closing valve.

Further, be equipped with from tail end to the mounting hole extended in magnetisable section for magnetisable section, can not magnetised section be fixed on Mounting hole, mounting hole are equipped with internal screw thread, can not magnetised section be equipped with the external screw thread that is spirally connected with internal screw thread.

Further, magnetisable section, can not magnetised section be respectively in cylinder, magnetisable section is more than for iron prop or steel column or iron content The cylinder of half, can not magnetised section be copper post or aluminium column or albronze column or plastic cement column,

Further, dust catcher further includes being held in closing to the filter device of filtering dirty air, will close valve Second elastic component of position, the second elastic component are in compressive state between filter device and closing valve always, and valve rod can overcome The elastic force of second elastic component is removed with that will close valve from detent position.

Further, the second elastic component is spring, and when stem movement to stroke end position, the second elastic component is in pressure simultaneously State and closing valve, which are formed filter device by the second elastic component of pressure simultaneously, to be impacted.

Further, filter device includes pallet and the filter for being installed on pallet, and second elastic component one end presses on support Disk, the opposite other end press on closing valve, when stem movement to stroke end position, closing valve by pressure and the second elastic component Filter device is formed and is impacted.

Further, filter device includes pallet and the filter for being installed on pallet, and pallet is equipped with suction opening, through filter Filtered air flows through suction opening, and second elastic component one end presses on pallet, the opposite other end presses on closing valve.

Further, pallet is additionally provided with the offset part for being offset to pallet side, and the second elastic component is in closing valve and biasing Between portion, one end of the second elastic component presses on offset part.

Further, pallet is equipped at least ventilation opening with suction opening separately, and when cleaning the filter, air can Successively external air entrance, ventilation opening and the surface back to dust collecting container for being applied to filter after opening.

Further, dust catcher further includes providing the motor of suction power, and pallet is additionally provided with main part, and offset part is offset to Main part side is simultaneously integrally formed with main part, and suction opening is opened in main part, and motor is located on the upside of pallet and filter is located at On the downside of pallet, filter is cylindrical.

Further, the ventilation opening is between suction opening and the second elastic component.

Further, dust catcher further includes first chamber, and the second elastic component is located within first chamber, external air entrance The air intake of first chamber is constituted, ventilation opening constitutes the air outlet slit of first chamber, and offset part is interval in first chamber and collection Between the inner space of dirt container.

Further, offset part is equipped with bottom wall, the first frame around the second elastic component, and dust catcher further includes and bottom wall phase Pair roof, the second frame around the second elastic component, the first frame, the second frame be located between bottom wall and roof, outside Carry out air intake and be located at roof, ventilation opening is opened in bottom wall, and bottom wall, the first frame, roof, the second frame surround first chamber Room.

Further, pallet is equipped with the third frame around the first frame, between the first frame and third frame separately The mating groove around the second elastic component is formed, the second frame is assembled in mating groove.

Further, dust catcher further includes the second elastic component, pallet and the peace for being held in detent position will close valve Filter loaded on pallet, the second elastic component are spring, and the second elastic component is between pallet and closing valve always in compression shape State, pallet are equipped with suction opening, and the air after being filtered flows through suction opening, and one end of the second elastic component presses on pallet, When stem movement to stroke end position, the second elastic component be in pressure and state and close valve to the impact of pallet by pressure and Second elastic component is conducted to pallet.

Further, dust catcher further includes the second elastic component, pallet and the peace for being held in detent position will close valve Filter loaded on pallet, the second elastic component are spring, and the second elastic component is between pallet and closing valve always in compression shape State, pallet are equipped with suction opening, and the air after being filtered flows through suction opening, and pallet is equipped with the biasing for being offset to pallet side Portion, the second elastic component are between closing valve and offset part, and one end of the second elastic component presses on offset part, stem movement to row When journey end position, the second elastic component is in pressure and state and closes second elastic component of the valve to the impact of offset part by pressure simultaneously It conducts to offset part.

Further, dust catcher further include to valve rod is held in the first elastic component of initial position, cover valve rod and First cover of the first elastic component, the first elastic component are sheathed on valve rod, and the first cover is equipped with around valve rod and the first elastic component Sleeve part, several mounting legs form the first air inlet being in fluid communication with external air entrance between adjacent mounting leg.

Further, dust catcher further includes the motor for providing suction power, the second cover for covering the first cover, the second cover Body is equipped with the second air inlet being in fluid communication with the first air inlet.

Further, dust catcher further includes handpiece case, and the first cover, the second cover, solenoid module are located at head Within shell, handpiece case be equipped with moving dust collector handle, ventilation window, air can successively through ventilation window, second into Port, the first air inlet flow to external air entrance.

Dust catcher, further, valve rod during from initial position to stroke end position solenoid module to valve rod Electromagnetic driving force direction it is consistent with valve rod traffic direction.

Dust catcher, further, valve rod includes opposite first end and second end, second end be located at first end and closing valve it Between, valve is closed between valve rod and filter device, and valve rod is to push closing valve towards filter device by second end.

Further, dust catcher further includes pallet, the filter for being installed on pallet, stem movement to stroke end position When, closing valve contacts with pallet and impacts pallet.

Dust catcher, further, pallet are equipped with the offset part for being offset to pallet side, stem movement to stroke end position When, closing valve contacts with offset part and impacts offset part.

Dust catcher, further, closing valve are equipped with to the direction protruding portion outstanding far from valve rod, stem movement to stroke When end position, protruding portion contacts with pallet and impacts pallet.

These features and advantages of the utility model will the detailed exposure in following specific embodiment, attached drawing.

[Detailed description of the invention]

Fig. 1 is the perspective view of the utility model dust catcher；

Fig. 2 is that the utility model dust catcher removes the perspective view after handpiece case；

Fig. 3 is that the utility model dust catcher removes the perspective view after handpiece case and the second cover；

Fig. 4 is the longitudinal sectional view of the utility model dust catcher (valve rod is in initial position)；

Fig. 5 is the magnified partial view of Fig. 4；

Fig. 6 is the utility model dust catcher bottom cover, the second elastic component, closes the perspective view that valve group is combined；

Fig. 7 is the perspective view that the utility model dust catcher bottom cover and pallet are assembled together；

The perspective view that Fig. 8 is the utility model dust catcher bottom cover, pallet and filter are assembled together；

Fig. 9 is the perspective view of the utility model dust catcher pallet；

Figure 10 is the first elastic component of the utility model dust catcher, valve rod, solenoid module, valve seat, closing valve, the second bullet The exploded view of property part.

[specific embodiment]

The technical solution of the utility model embodiment is explained below with reference to the attached drawing of the utility model embodiment and Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode, Those skilled in the art's obtained other embodiments without making creative work, belong to the utility model Protection scope.

Referring to figs. 1 to shown in Figure 10, dust catcher has dust collecting container 10, filter device, float 11, is set to dust collecting container 10 Bottom castor 12, suction power is provided motor 13, by the driving rotation of motor 13 impeller (not shown), external air enters Mouthfuls 14, closing valve 15, valve rod 2, to the solenoid module 3 of driving stem 2, valve rod 2 is held in initial position First elastic component 16, the second elastic component 17.The rated power of motor 13 in 100w between 3000w, preferably in 200w to 1800w Between, such as 960w, 1200w, 1320w, 1440w；The capacity of dust catcher or the capacity of dust collecting container 10 are at 0.5 gallon (1 gallon =3.785412 liters) between 30 gallons, preferably between 1 gallon to 20 gallons, for example, 6 gallons, 9 gallons, 10 gallons, 12 plus Logical sequence, 14 gallons, 16 gallons.

Closing valve 15 can move under the driving of valve rod 2, and closing valve 15 has detent position, stroke end position, initial Valve opening position between position and stroke end position, valve rod 2 can move to stroke end position by initial position, it is specific and Speech, closing valve 15 can be moved to stroke end position from detent position under the driving of valve rod 2；When closing valve 15 is in detent position External air entrance 14 is closed, valve rod 2 can remove closing valve 15 to open external air entrance 14, electromagnetism from detent position Coil module 3 is equipped with the through channel 30 through solenoid module 3, and solenoid module 3 is cylindrical in shape, further, electromagnetism Coil module 3 is cylindrical；Valve rod 2 is at least partly arranged in the through channel 30, and valve rod 2 is equipped with can be by solenoid module 3 magnetized magnetisable section 20, can not by solenoid module 3 it is magnetized can not magnetised section 21, magnetisable section 20 with it is not magnetisable Section 21 is fixed together, and magnetisable section 20 is transported with opposite head end 200 and tail end 201, head end 200 and tail end 201 in valve rod 2 On dynamic direction on the contrary, tail end 201 be located at can not be between magnetised section 21 and head end 200.Electromagnetic wire based on physical knowledge, after energization Circle module 3 can magnetize magnetisable section 20 and to magnetisable section 20 generations electromagnetic driving force, but not to can not the generation of magnetised section 21 Electromagnetic driving force, due to solenoid module 3 not to can not magnetised section 21 apply electromagnetic driving force, be arranged different length, shape Deng can not magnetised section 21 do not change electromagnetic driving force size substantially, can not 21 length of magnetised section, shape etc. change for electricity Magnetic driving power influence it is minimum, therefore can not 21 adjustability of magnetised section it is very strong, and magnetisable section 20 of change will affect it is very big therefore Be not easy to arbitrarily change, relative to magnetisable section 20, can not magnetised section 21 have preferably adjustment adaptability, the design valve rod 2 Configured with can not magnetised section 21, convenient never magnetisable section 21 is started with, based on can not the good adjustment of magnetised section 21 variation adaptation Property adjustment can not magnetised section 21 (adjustment magnetisable section 20 with can not magnetised section 21 length ratio relationship and/or mass ratio close System, or adjustment can not 21 length of magnetised section, shape etc.), go exploitation and composition meet needs (such as electromagnetic driving force and energy it is big It is small, with closing valve 15 relative position limit) valve rod 2, conducive to exploitation meet need valve rod 2 mode diversification and exploitation Convenience is promoted.

Valve rod 2 is to move downwardly to stroke knot by initial position under the driving of solenoid module 3 in present embodiment Beam position, valve rod 2 passes through valve opening position in motion process；Solenoid module 3 does not power under situation, and valve rod 2 is held in just Beginning position；Valve rod 2 is in the closing valve 15 when initial position and is located at detent position, and valve rod 2 is in stroke end position when institute It states closing valve 15 and is in the state removed from detent position, valve rod 2 moves to during stroke end position from initial position Magnetisable section 20 with closing valve 15 do not contact, valve rod 2 be by can not magnetised section 21 remove closing valve 15.Valve rod 2 is to pass through Closing valve 15 can not be removed from detent position far from magnetisable section 20 in 21 opposite end of magnetised section, further, valve rod 2 Be by can not one end in 21 opposite end of magnetised section far from magnetisable section 20 push closing valve 15, in present embodiment, valve Bar 2 be by can not magnetised section 21 lower end push closing valve 15.Valve rod 2, can not at least portion of magnetised section 21 in initial position Quartile within solenoid module 3, valve rod 2 in stroke end position, can not magnetised section 21 be at least partially disposed at electromagnetic wire It encloses except module 3, such location layout is conducive to the more effective driving stem 2 of solenoid module 3.Valve rod 2 in initial position, Can not magnetised section 21 be fully located within solenoid module 3, be designed in this way and be moved through conducive to valve rod 2 to stroke end position The driving energy more from solenoid module 3 is obtained in journey.Valve rod 2 is moved from initial position to stroke end position Impact closes valve 15 and removes closing valve 15 from detent position in the process.Can not magnetised section 21 be valve rod 2 impact closing valve 15 Position.

Can not magnetised section 21 be located at magnetisable section 20 closing valve 15 between, magnetisable section 20 in 2 direction of motion of valve rod On opposite end between center position be always positioned at 3 through channel 30 of solenoid module in 2 direction of motion of valve rod Opposite end between center position and closing valve 15 between, alternatively, valve rod 2 is in stroke end position, magnetisable section 20 Center position between the opposite end in 2 direction of motion of valve rod and 3 through channel 30 of solenoid module in valve rod 2 Center position overlapping between opposite end in the direction of motion, is designed in this way, magnetisable section 20 of basic guarantee always not across Equilbrium position more relative to solenoid module 3 promotes magnetisable section 20 to be powered into stroke end position moving process Solenoid module 3 to magnetisable section 20 generate electromagnetic driving force direction be along 2 direction of motion of valve rod, can basic guarantee exist Valve rod 2 from initial position to stroke end position during magnetisable section 20 electromagnetic driving force being subject to move direction one It causes.Magnetisable section of 20 head ends 200 are always positioned at except solenoid module 3, and head end 200 and closing valve 15 are located at electromagnetic coil mould The two opposite sides of block 3.Magnetisable section 20 at least partly when any position of the valve rod 2 between initial position and stroke end position In through channel 30.

In stroke end position, tail end 201 is located at except solenoid module 3 and is located at electromagnetism with head end 200 valve rod 2 The two opposite sides of coil module 3, for valve rod 2 in stroke end position, tail end 201 exceeds electromagnetic wire in 2 direction of motion of valve rod The distance for enclosing module 3 is less than the distance that head end 200 exceeds solenoid module 3, be designed in this way can basic guarantee in valve rod 2 to row It is consistent to move direction for magnetisable section 20 electromagnetic driving force being subject in journey end position moving process, to guarantee valve rod 2 There can be biggish impact capacity.In initial position, tail end 201 is located within solenoid module 3 valve rod 2.

Be equipped with for magnetisable section 20 from tail end 201 to the mounting hole 202 extended in magnetisable section 20, can not magnetised section 21 it is fixed In mounting hole 202, mounting hole 202 is equipped with internal screw thread, can not magnetised section 21 be equipped with the external screw thread being spirally connected with internal screw thread.Mounting hole 202 is vertical.Magnetisable section 20, can not magnetised section 21 be respectively in cylinder, magnetisable section 20 is more than one for iron prop or steel column or iron content Half cylinder, can not magnetised section 21 be copper post or aluminium column or albronze column or plastic cement column.Magnetisable section 20 with can not magnetised section 21 is coaxial.Valve rod 2 be by can not magnetised section 21 push closing valve 15.By setting can not magnetised section 21 be conducive to enhancing to closing The impact of valve 15, if can not magnetised section 21 replace with magnetisable, cause valve rod 2 on the whole closer to relative to electromagnetic coil mould The equilbrium position of block 3, can reduce the solenoid module 3 in 2 stroke of valve rod leads to valve rod 2 to total driving energy of valve rod 2 Impact force reduce.

Solenoid module 3 is by generating electromagnetic driving force to valve rod 2 come driving stem 2, electromagnetic driving force, that is, electromagnetism Valve rod 2 after 3 pairs of coil module magnetization generates active force, and through channel 30 can guide the movement of valve rod 2, and valve rod 2 is in initial position It is at least partially disposed in through channel 30 when any position between stroke end position, valve rod 2 is in initial position and closing Valve 15 separates, and can contact with the closing valve 15 in detent position when valve rod 2 moves to valve opening position, valve rod 2 is in stroke stop bits It closes valve 15 when setting to remove from detent position, valve rod 2 is separated in initial position with closing valve 15 in this programme, and valve rod 2 exists It moves in advance from initial position under electromagnetic drive and under the guiding of through channel 30, rather than starts together with closing valve 15, The valve rod 2 of movement can generate biggish impact to closing valve 15, and drive and guide valve rod 2 based on solenoid module 3 and transport Dual function is moved, realizes the impact type valve opening guided of 2 pairs of closing valves 15 of valve rod, to provide a kind of 2 pairs of envelopes of set valve rod The dust catcher for the impact type valve opening that valve closing 15 can guide.

Valve rod 2 includes the direction of motion of opposite first end 22 and second end 23, first end 22 and second end 23 in valve rod 2 Above on the contrary, first end 22 is always positioned at except solenoid module 3,2 first end 22 of valve rod is located at electromagnetic coil with closing valve 15 The two opposite sides of module 3, the first elastic component 16 are sheathed on magnetisable section 20, the first elastic component 16 be located at solenoid module 3 with Between 2 first end 22 of valve rod, one end of the first elastic component 16 presses on solenoid module 3, is designed in this way, is compressed by one end Magnetisable section 20 position relative to solenoid module 3 is effectively limited in the first elastic component 16 of solenoid module 3.Valve rod 2 are equipped with the flange 24 being located at except solenoid module 3, and the first elastic component 16 is pressed to solenoid module 3 and flange 24 Between, the first elastic component 16 is the intermediate spring being gradually reduced to both ends radial dimension, and the first elasticity can be reduced by being designed in this way The pressure and height of part 16, the first elastic component 16 are set to 2 first end 22 of valve rod similar to spindle, flange 24.3 court of solenoid module It is equipped with annular groove 31 and annular convex ring 32 to the side of 2 first end 22 of valve rod, annular groove 31 and annular convex ring 32 distinguish ring Around valve rod 2, one end of the first elastic component 16 is located in annular groove 31 and is placed on annular convex ring 32.Valve rod 2 is by can not magnetic Changing the impact closing valve 15 of section 20 removes closing valve 15.

Electromagnetic coil magnetic core is equivalent to for magnetisable section 20, according to principles such as physics electromagnetic induction, when magnetizable magnetic core When substantially overlapping relative to both electromagnetic coils center, magnetic core is relative to electromagnetic coil position balance, and electromagnetic coil is to magnetic at this time Core is without electromagnetic induction power (i.e. to magnetic core i.e. without suction also without repulsive force), therefore magnetic core is that there is one to be put down relative to electromagnetic coil Weighing apparatus position, in equilbrium position, electromagnetic coil does not have electromagnetic driving force to magnetic core, and magnetic core crosses equilbrium position relative to electromagnetic coil Electromagnetic induction power inhibits magnetic core to continue far from equilbrium position for reversed afterwards；In the utility model it is so-called it is magnetisable, can not magnetic Changing absolutely to think all magnetisable or not magnetisable in any condition, should understand according to common sense, for example iron is magnetisable , copper or Lyu are not magnetizable.In present embodiment: 2 first end 22 of valve rod is 2 upper end of valve rod, and 2 second end 23 of valve rod is valve 2 lower end of bar, magnetisable section of 20 head ends 200 are magnetisable section of 20 upper ends, and magnetisable section of 20 tail ends 201 are magnetisable section of 20 lower ends, Can not magnetised section 21 lower end constitute 2 second end 23 of valve rod.

Its described second end 23 in initial position of valve rod 2 is located in 3 through channel 30 of solenoid module, and valve rod 2 exists When stroke end position, the second end 23 be located at except solenoid module 3 and the first end 22 with second end 23 In the two opposite sides of solenoid module 3.2 first end 22 of valve rod is located at the two opposite sides of solenoid module 3 with closing valve 15, 2 second end 23 of valve rod is located between 2 first end 22 of valve rod and pallet 4.Valve rod 2 its described second end 23 and electricity at valve opening position One end of 3 through channel 30 of magnetic coil module is substantially flush.Through channel 30 is vertical.

Second elastic component 17 is held in detent position will close valve 15, and the second elastic component 17 is in filter device and closing Always compressive state is between valve 15, valve rod 2 can overcome the elastic force of the second elastic component 17 will close valve 15 from detent position It removes.Second elastic component 17 be spring, when valve rod 2 moves to stroke end position, the second elastic component 17 be in pressure and state and It presses the second elastic component 17 simultaneously to stop closing valve 15 and closes second elastic component of the valve 15 to the impact of filter device by pressure simultaneously 17 conduct to filter device；Closing valve 15 is not contacted with filter device when closing valve 15 impacts the filter device.It presses simultaneously Second elastic component 17 can stop to close valve 15 and valve rod 2 to the movement close to filter device, but closing valve 15 and valve rod 2 is right The impact of filter device is conducted to filter device.

Filter device includes pallet 4 and the filter 50 for being installed on pallet 4,17 one end of the second elastic component press on pallet 4, The opposite other end presses on closing valve 15, when valve rod 2 moves to stroke end position, second elasticity of the closing valve 15 by pressure simultaneously Part 17 impacts pallet 4.Pallet 4 is equipped with suction opening 40, flows through suction opening 40 through the filtered air of filter 50；Pallet 4 is equipped with It is offset to offset part 41, the main part 42 of 4 side of pallet, the second elastic component 17 is between closing valve 15 and offset part 41, the One end of two elastic components 17 presses on offset part 41.Main part 42 is in disk form, and offset part 41 is offset to 42 side of main part, takes out Air port 40 is opened in main part 42, and further, suction opening 40 is opened in 42 central area of disc-shaped body portion, and offset part 41 is inclined It is placed in 42 side of main part.Filter device further includes discoidal end cap 51, and end cap 51 is connected to 50 lower end of filter.Float 11 It is contained within 50 inner cavity 500 of filter.Offset part 41 and main part 42 are integrally formed, and motor 13 is located at 4 upside of pallet and mistake Filter 50 is located at 4 downside of pallet, and filter 50 is cylindrical.

Pallet 4 is additionally provided at least ventilation opening 43 with suction opening 40 separately, and the ventilation opening 43 is to be in fluid communication Between 50 inner cavity 500 of filter and external air entrance 14, when cleaning the filter 50, air can successively via opening after External air entrance 14, ventilation opening 43 enters and filter 50 and is applied to filter 50 back to the surface of dust collecting container 10, such as This design adds ventilation opening 43 by pallet 4, it can be achieved that introducing came from external air entrance 14 compared with the existing technology Air is supplied to the surface back to dust collecting container 10 of filter 50, and for cleaning filter 50, the design increases the function of pallet 4 Can, the practicability of pallet 4 is enhanced, thus the dust catcher that the pallet 4 for providing a kind of set filter 50 is practical.Offset part 41 partly overlap with main part 42, and ventilation opening 43 is opened in the overlapping region of offset part 41 Yu main part 42.

Dust catcher further includes the bottom cover 55 covered on dust collecting container 10, the fan housing 56 for being fixed on bottom cover 55.

The ventilation opening 43 is located between suction opening 40 and the second elastic component 17.Dust catcher further includes first chamber 52, the Two elastic components 17 are located within first chamber 52, and external air entrance 14 constitutes the air intake of first chamber 52, ventilation opening 43 Constitute the air outlet slit of first chamber 52, offset part 41 be interval in first chamber 52 and dust collecting container 10 inner space 101 it Between, filter 50 is contained in the inner space 101 of dust collecting container 10.Ventilation opening 43 is fluidly connected to first chamber 52 and filter Between 50 inner cavities 500.Offset part 41 is equipped with bottom wall 410, the first frame 411 around the second elastic component 17, and dust catcher further includes Second frame 54 of the roof 53, circular second elastic component 17 opposite with bottom wall 410；Roof 53, the second frame 54 are respectively bottom A part of lid 55；First frame 411, the second frame 54 are located between bottom wall 410 and roof 53, external air entrance 14 Positioned at roof 53, ventilation opening 43 is opened in bottom wall 410, and bottom wall 410, the first frame 411, roof 53, the second frame 54 surround institute State first chamber 52.Pallet 4 is equipped with the third frame 412 around the first frame 411, the first frame 411 and third frame 412 it Between separately form the mating groove 413 around the second elastic component 17, the second frame 54 is assembled in mating groove 413.Second frame 54 are assembled in mating groove 413 and are bonded with the first frame 411, third frame 412, to can be careful by the four of first chamber 52 Envelope.First frame 411, the second frame 54, third frame 412 distinguish generally rectangular shaped, a part, the third of the first frame 411 A part of frame 412, a part of mating groove 413 are located between ventilation opening 43 and suction opening 40.

Dust catcher further includes the first cover 18 for covering valve rod 2 and the first elastic component 16, covers the second of the first cover 18 Cover 19, the first elastic component 16 are sheathed on valve rod 2, and the first cover 18 is equipped with the sleeve part around valve rod 2 and the first elastic component 16 180, several mounting legs 181 form the first air inlet being in fluid communication with external air entrance 14 between adjacent mounting leg 181 Mouth 182.Second cover 19 is equipped with the second air inlet (not shown) being in fluid communication with the first air inlet 182.Dust catcher further includes Handpiece case 44, the first cover 18, the second cover 19, solenoid module 3 are located within handpiece case 44, and handpiece case 44 is set Have handle 440, the ventilation window 441 of moving dust collector, air can successively through ventilation window 441, the second air inlet, first into Port 182 flow to external air entrance 14.External air entrance 14 is equipped with valve seat 140, closes valve 15 in detent position sealing paste Together in the valve seat 140, valve seat 140 uses flexible material, such as rubber material；It closes valve 15 and uses hard material, such as mould Expect material.Second air inlet is located at the second cover 19 towards the side of motor 13.180 internal diameter of sleeve part is slightly larger than 2 flange of valve rod 24, the movement of valve rod 2 can be guided.The air of external air entrance 14 is supplied in present embodiment except dust catcher, other realities It applies in mode, it can also be such: supplying external air entrance 14 via certain air duct through the filtered air of filter 50.Second Cover 19 is fixed on fan housing 56, and fan housing 56 and pallet 4 are located at the two sides up and down of bottom cover 55.

Suction opening 40 is rounded, and pallet 4 further includes the first arcwall 45 enclosed set on 40 side of suction opening, the first arcwall 45 upwardly extend, and it is laterally relative to longitudinal direction that suction opening 40, which is located at the laterally reversed two sides of the first arcwall 45 with ventilation opening 43, For, up and down direction is longitudinal；Pallet 4 further includes the second arcwall 46, between the first arcwall 45 and the second arcwall 46 Arc groove 47 is separately formed, the second frame 54, which is equipped with, is assembled to the third arcwall 540 of arc groove 47, the first arcwall 45, Second arcwall 46, third arcwall 540, arc groove 47 be arc-shaped respectively and be located at suction opening 40 and ventilation opening 43 it Between, the first arcwall 45 constitutes a part of third frame 412, and the second arcwall 46 constitutes a part of the first frame 411, arc A part of the composition mating groove 413 of shape slot 47.

The electromagnetic driving force side of solenoid module 3 to valve rod 2 during from initial position to stroke end position of valve rod 2 To, electromagnetic driving force direction with valve rod 2 traffic direction consistent i.e. electromagnetic driving force direction and valve rod consistent with 2 traffic direction of valve rod 2 traffic directions are roughly the same.Valve rod 2 can move one first pre-determined distance under electromagnetic force and be moved to out by home position Valve position, the first pre-determined distance are 2 centimetres to 10 centimetres, and 2 valve opening positional distance valve rod of valve rod, 2 stroke end position is 2.5 lis Rice is to 10 centimetres.

Closing valve 15 can be removed from detent position and closing valve 15 can be driven to rush at filtering dress by valve rod 2 in present embodiment The valve rod 2 set, closing valve 15 can impact the filter device under the drive of valve rod 2, be designed in this way, and valve rod 2 drives closing valve 15 It rushes at filter device and causes to impact filter device, more strong vibration can be generated to filter device, it effectively will filtering The dust that device is accumulated shakes off, and cleaning and filtering device is realized, to provide a kind of dust catcher that 50 cleaning effect of filter is good.

Closed in present embodiment valve 15 when impacting the pallet 4 closing valve 15 do not contacted with filter device, be by The second elastic component 17 simultaneously is pressed to conduct impact；The pallet 4 is mounted on bottom cover 55, and bottom cover 55 is in disk form.This embodiment party In formula: closing valve 15 to the impact of pallet 4 by pressure and the conduction of the second elastic component 17 to pallet 4, when impact closing valve 15 with Pallet 4 does not contact.When valve rod 2 moves to stroke end position, closing valve 15 to the impact of offset part 41 by pressure and the The conduction of two elastic components 17 closes valve 15 by the second elastic component 17 of pressure simultaneously and impacts offset part 41 to offset part 41.Offset part 41 Equipped with circular bar position 414, radially distributed several supporting rib positions 415, one end of the second elastic component 17 presses on supporting rib Position 415, circular bar position 414 surround supporting rib position 415.The one-piece member that pallet 4 is integrally formed, pallet 4 are additionally provided with annular Mounting portion 48, one end of filter 50 are sheathed on annular mounting portion 48.Circular bar position 414 be in circular ring shape, supporting rib position 415 along Circular bar position 414 radially extends.Valve rod 2 is to push closing valve 15, further, valve towards filter device by second end 23 Bar 2 is to push closing valve 15 towards pallet 4 by second end 23, and further, valve rod 2 is by second end 23 towards biasing Portion 41 pushes closing valve 15.

When closing valve 15 impacts the pallet 4 in other embodiments closing valve 15 can with filtering means touch, thus Direct impact filtration device, for example, by the direct impact filtration device of protruding portion 150 set by closing valve 15, protruding portion 150 to Direction far from valve rod 2 is prominent, and protruding portion 150 is located at closing side of the valve 15 towards pallet 4；Further, protruding portion 150 In closing side of the valve 15 towards offset part 41；When valve rod 2 moves to stroke end position, protruding portion 150 connects with filter device Touch simultaneously impact filtration device；Further, when valve rod 2 moves to stroke end position, protruding portion 150 and filter device pallet 4 It contacts and impacts pallet 4；Further, when valve rod 2 moves to stroke end position, protruding portion 150 contacts simultaneously with offset part 41 Impact offset part 41.Protruding portion 150 includes staggered several muscle positions 151.Protruding portion 150 extends downwardly.

When dust catcher works, motor 13 drives impeller to be aspirated, carry the dirty airs of the rubbish such as dust, clast via The dirty air entrance 100 of dust collecting container 10 is inhaled into dust collecting container 10, the filtering filtered through filter 50, the rubbish such as dust, clast Rubbish stays in dust collecting container 10, through the filtered air of filter 50 by suction opening 40, impeller and successively via fan housing 56 Dust catcher is discharged in the discharge outlet 560 of air duct and fan housing 56；During dust catcher suction operation, when needing to clean filter 50, give Solenoid module 3 is powered, and valve rod 2 is moved since initial position under the electromagnetic driving force of solenoid module 3, valve rod 2 Impact closed valve 15 and removed closing valve 15 from external air entrance 14 before this, at this point, the air in dust collecting container 10 is negative Pressure effect under, air can ventilation window 441, the second air inlet, the first air inlet 182, external air entrance 14, ventilation opening 43 into Enter in filter 50, effectively blows off the dust that filter 50 is accumulated to the work for playing cleaning filter 50 in dust collecting container 10 With the above cleaning process can be summarized as recoil airflow cleans filter 50；Further, valve rod 2 drives closing valve 15 to pallet 4 Directly or indirectly impact generates more strong vibration to pallet 4, indirectly shakes off the dust that filter 50 is accumulated to dust Container 10, the above cleaning process can be summarized as impact endurance test shock cleaning filter 50.

In present embodiment, when cleaning without filter 50, solenoid module 3 does not pass to exciting current, and valve rod 2 is protected It holds in initial position, stroke end position is position locating for valve rod 2 when valve rod 2 presses simultaneously the second elastic component 17 with closing valve 15 together It sets, the initial position of closing valve 15 is the detent position, is when closing valve 15 and leaving when detent position continues and runs to pallet 4 When running together with valve rod 2, therefore closing its stroke end position of arrival of valve 15, valve rod 2 also reaches its stroke end position； In other embodiments, the impact dynamics of valve rod 2 can be with weaker, so that second spring does not arrive pressure and state closes valve 15 and valve Bar 2 reaches respective stroke end position.The external air entrance 14 is closed by closing valve 15；In present embodiment Dust catcher booting can be set by the program in and just start automatic repeatedly starting solenoid module 3, single in the short time of suction To 3 conduction time of solenoid module be substantially equal to valve rod 2 from initial position run to stroke end position time (about 0.015 second to 0.03 second), solenoid module 3 powers off in return stroke, under the effect of the second elastic component 17, closing valve 15 from Its stroke end position is reset to detent position, and under the first elastic component 16, the effect of the second elastic component 17, valve rod 2 is first reset to Valve opening position is then further reset to initial position by valve opening position in 16 valve rod 2 of the first elastic component.

Valve rod 2 is roughly vertical, magnetisable section 20 and can not magnetised section 21 it is roughly vertical, the traffic direction of valve rod 2 is upper and lower Direction, closing valve 15 move straight down under the promotion of valve rod 2 and are gradually distance from external air entrance 14；Close valve 15 integral into It is round.Valve rod 2, solenoid module 3, closing valve 15 are located at 4 top of pallet, valve rod 2, solenoid module 3, closing 15, valve Above offset part 41.

More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto, Being familiar with the those skilled in the art should be understood that the utility model includes but is not limited to attached drawing and above in specific embodiment The content of description.The modification of any function and structure principle without departing from the utility model is intended to be included in the model of claims In enclosing.

Claims (24)

1. a kind of dust catcher, including dust collecting container, external air entrance, it is in when detent position that external air entrance is closed Close valve, it is characterised in that: further include can by close valve removed from detent position valve rod, to valve rod generate electromagnetic drive The solenoid module of power, solenoid module are equipped with the through channel for guiding stem movement through solenoid module, Valve rod is at least partly arranged in the through channel, and valve rod has initial position, stroke end position, in initial position and stroke Valve opening position between end position, when any position of the valve rod between initial position and stroke end position at least partly position In through channel, valve rod is separated in initial position with closing valve, when valve rod moves to valve opening position can in detent position Valve contact is closed, valve rod is closed valve in stroke end position and removed from detent position.

2. dust catcher according to claim 1, it is characterised in that: valve rod includes being always positioned at except solenoid module First end, valve rod first end and closing valve are located at the two opposite sides of solenoid module, relative to valve rod in valve opening position and row Journey end position, valve rod its described first end in initial position are farther apart from solenoid module.

3. dust catcher according to claim 2, it is characterised in that: further include valve rod is held in the of initial position One elastic component, the first elastic component are sheathed on valve rod, and the first elastic component is between solenoid module and valve rod first end, and first One end of elastic component presses on solenoid module.

4. dust catcher according to claim 2, it is characterised in that: valve rod is equipped with convex except solenoid module Edge, the first elastic component are pressed between solenoid module and flange, the first elastic component be it is intermediate to both ends radial dimension by Decrescence small spring.

5. dust catcher according to claim 2, it is characterised in that: valve rod includes the second end opposite with first end, valve rod In initial position, its described second end is located in solenoid module through channel, and valve rod is in stroke end position, institute State that second end is located at except solenoid module and the first end and second end are located at the two opposite sides of solenoid module.

6. dust catcher according to claim 1, it is characterised in that: further include to filtering dirty air filter device, use Will close the second elastic component that valve is held in detent position, the second elastic component is in always between filter device and closing valve Compressive state, valve rod can overcome the elastic force of the second elastic component to remove will close valve from detent position.

7. dust catcher according to claim 6, it is characterised in that: the second elastic component is spring, stem movement to stroke knot When beam position, the second elastic component is in pressure and state and closing valve forms filter device by the second elastic component of pressure simultaneously and rushes It hits.

8. dust catcher according to claim 7, it is characterised in that: filter device includes pallet and the filtering for being installed on pallet Device, second elastic component one end presses on pallet, the opposite other end presses on closing valve, when stem movement to stroke end position, It closes valve and filter device is formed by the second elastic component of pressure simultaneously and impact.

9. dust catcher according to claim 6, it is characterised in that: filter device includes pallet and the filtering for being installed on pallet Device, pallet are equipped with suction opening, and the air after being filtered flows through suction opening, and second elastic component one end presses on pallet, phase The anti-other end presses on closing valve.

10. dust catcher according to claim 9, it is characterised in that: pallet is additionally provided with the offset part for being offset to pallet side, Second elastic component is between closing valve and offset part, and one end of the second elastic component presses on offset part.

11. dust catcher according to claim 10, it is characterised in that: further include providing the motor of suction power, pallet is also Equipped with main part, offset part is offset to main part side and is integrally formed with main part, and suction opening is opened in main part, motor position On the upside of pallet and filter is located on the downside of pallet, and filter is cylindrical.

12. dust catcher according to claim 10, it is characterised in that: further include first chamber, the second elastic component is located at the Within one chamber, external air entrance constitutes the air intake of first chamber, and offset part is interval in first chamber and dust collecting container Inner space between.

13. dust catcher according to claim 12, it is characterised in that: offset part is equipped with bottom wall, around the second elastic component First frame, dust catcher further include the roof opposite with bottom wall, the second frame around the second elastic component, the first frame, second Frame is located between bottom wall and roof, and external air entrance is located at roof, and bottom wall, the first frame, roof, the second frame enclose At the first chamber.

14. dust catcher according to claim 13, it is characterised in that: pallet is equipped with the third frame around the first frame, The mating groove around the second elastic component is separately formed between first frame and third frame, the second frame is assembled to mating groove In.

15. dust catcher according to claim 1, it is characterised in that: further include being held in detent position valve will be closed The second elastic component, pallet and the filter for being installed on pallet, the second elastic component be spring, the second elastic component pallet and closing Always compressive state is between valve, pallet is equipped with suction opening, and the air after being filtered flows through suction opening, the second elasticity One end of part presses on pallet, and when stem movement to stroke end position, the second elastic component is in pressure and state and closing valve pair The impact of pallet is conducted by the second elastic component of pressure simultaneously to pallet.

16. dust catcher according to claim 1, it is characterised in that: further include being held in detent position valve will be closed The second elastic component, pallet and the filter for being installed on pallet, the second elastic component be spring, the second elastic component pallet and closing Always compressive state is between valve, pallet is equipped with suction opening, and the air after being filtered flows through suction opening, and pallet is equipped with It is offset to the offset part of pallet side, the second elastic component is between closing valve and offset part, and one end of the second elastic component compresses When offset part, stem movement to stroke end position, the second elastic component is in press simultaneously state and close valve and rush to offset part Hit by pressure and the second elastic component conduct to offset part.

17. dust catcher according to claim 1, it is characterised in that: further include valve rod is held in initial position First elastic component, the first cover for covering valve rod and the first elastic component, the first elastic component are sheathed on valve rod, and the first cover, which is equipped with, to be enclosed It is formed and external air entrance stream between the sleeve part of valve rod and the first elastic component, several mounting legs, adjacent mounting leg First air inlet of body connection.

18. dust catcher according to claim 17, it is characterised in that: further include the motor for providing suction power, cover the Second cover of one cover, the second cover are equipped with the second air inlet being in fluid communication with the first air inlet.

19. dust catcher according to claim 18, it is characterised in that: further include handpiece case, the first cover, the second cover Body, solenoid module are located within handpiece case, and handpiece case is equipped with handle, the ventilation window of moving dust collector, air Can external air entrance successively be flow to through ventilation window, the second air inlet, the first air inlet.

20. dust catcher according to claim 1, it is characterised in that: valve rod is from initial position to stroke end position process Middle solenoid module is consistent with valve rod traffic direction to the electromagnetic driving force direction of valve rod.

21. dust catcher according to claim 1, it is characterised in that: valve rod includes opposite first end and second end, second end Between first end and closing valve, valve is closed between valve rod and filter device, and valve rod is filtered by second end direction Device pushes closing valve.

22. dust catcher according to claim 1, it is characterised in that: further include pallet, the filter for being installed on pallet, valve When bar moves to stroke end position, closing valve contacts with pallet and impacts pallet.

23. dust catcher according to claim 22, it is characterised in that: pallet is equipped with the offset part for being offset to pallet side, When stem movement to stroke end position, closing valve contacts with offset part and impacts offset part.

24. dust catcher according to claim 23, it is characterised in that: closing valve is equipped with outstanding to the direction far from valve rod Protruding portion, when stem movement to stroke end position, protruding portion contacts with pallet and impacts pallet.