CN2754904Y - Multifunctional assembled health-care blackboard eraser with dust collection - Google Patents

Abstract

The utility model relates to a combined multifunctional dust-collecting health-care blackboard eraser, which is provided with an outer box of a dust-collecting type blackboard eraser which does not use electricity, an outer box of a dust-absorbing type blackboard eraser which uses electricity, an outer box of a combined dust-collecting type blackboard eraser which is provided with a handle, a cross-shaped drying velour eraser head, an oblong drying velour eraser head, a wet wool felt eraser head and a cloth water-absorbing eraser head, four dust-proof flexible plastic edges which have the steel quality and are bonded on eight magnets are arranged on each outer box of the blackboard eraser, a screw nut of which the surface is provided with a small bulge with the functions of antiskid and massage, and a strip-shaped blackboard brush which can erase chalk marks of edges and corners easily, wherein any eraser head is clamped in a matching base by using the expansibility of the eraser head, then the base is fixed in the required outer box by using the screw nut, a blackboard eraser of any one of the blackboard eraser which can absorb dust by using electricity, the blackboard eraser which can collect dust without using electricity, the blackboard eraser with the drying eraser head or the wet eraser head and the water-absorbing eraser head is respectively combined. The combined blackboard eraser with the handle is combined with the dust-collecting type blackboard eraser which does not use electricity through the screw nut to increase the dust brushing area, and the strip-shaped brush is combined with the combined blackboard eraser with the handle or the dust-collecting type blackboard eraser which does not use electricity to erase the handwriting of the higher position.

Description

Type control of dust multifunctional health blackboard eraser capable of being combined

Affiliated technical field:

The present invention relates to a kind of type control of dust multifunctional health blackboard eraser capable of being combined,, belong to operation, Department of Transportation, printing branch, the big class of office appliance according to International Patent Classification (IPC).But the present invention is by regulating the dust-separation rate on regulated at will blackboard eraser four limits, dust-separation flexible plastic limit; By changing the brush of unlike material, any combination of realize erasing the board xerotripsis and wet rubbing; By changing difform brush, can satisfy the needs of different cleanliness factors and dust collection efficiency of erasing the board; By changing dust-collecting box of different nature (electricity consumption type dust-absorbing box and not electricity consumption type dust-collecting box), can regulate the dust suction or the dust collection efficiency of blackboard eraser; By design itself increase handle, it is more convenient to make the teacher wipe the writing of eminence, and two blackboard erasers are combined, and improves brush dirt efficient; And designed a kind of strip brush with handle, can be convenient to around the blackboard that the big blackboard eraser of accurate outwash is difficult for cleaning and four jiaos of chalk traces and point-like between the lines a stroke of small size; Pass through the control of dust invented or the dust absorption blackboard eraser multi-functional nut that has massage functions behind, can when erasing the board,, can massage, the end user is had health care, can eliminate fatigue the palm of the hand according to the motion of the palm of the hand; Electricity consumption type dust-absorbing box has dust-absorbing function, and the function of dry wet blackboard is also arranged; Utilize expansive force to imbed blackboard eraser suede fixing behind the groove and supporting blackboard eraser groove, Convenient blackboard is wiped suede wearing and tearing back or according to the replacing of different purposes.Type control of dust multifunctional health blackboard eraser capable of being combined is arbitrarily made with on the classroom or converts to-function wanted, and the time is no more than one minute.Can satisfy fully in the reality the black various needs of function of blackboard.

Background technology:

The blackboard eraser of conventional art in the writing, can cause dust from flying on erasing the board, harm teachers and students health.At traditional blackboard, whole blackboard erasers of existing invention seal dust collection type and electric dust absorption type nothing more than, reach three kinds on moist brush type.The sealing dust collection type blackboard eraser of existing invention, when erasing the board, brush has a wear process, therefore cause the gap of control of dust shell (dust-separation limit) and seriticker always first big after small, differ up and down, even can regulate the brush height, adjustment process is not easy yet, therefore causes dust collecting effect undesirable; And the electric dust absorption blackboard eraser of existing invention, the motor of its band flabellum always is positioned at vacuum chamber, motor, circuit, flabellum stick dust easily, and dust has alkalescent, and motor is had corrosiveness, and the chalk dust that sticks on motor, flabellum, the circuit influences its service efficiency, inconvenience cleaning, and electric blackboard eraser use cost height, noise height, heaviness when start is used, and do not design adjustable dustproof edge, turn off behind the motor or battery use up the back, just can not use.And the moist brush type blackboard eraser of existing invention, though having to erase the board go up the advantage of watercolors and when erasing the board dust little, but with blackboard brush wet after, must bear with blackboard parches, get on otherwise write letter written with chalk, chalk can be wet " writing not gorgeous " because of blackboard, and the moist brush blackboard eraser of existing invention, can't change the dryness brush, also not have electronic dehumidification function.And some inventions are arranged in addition, and all be function limitation, all can't realize switching and conversion between function in use, function is all simple, single, therefore all can't adapt to, and also all is inconvenient to adapt to the needs of the reality that multiple instructions for use is arranged.And the control of dust of existing all inventions or the black wiping of electric dust absorption, have all with next " common fault ": promptly: wiping the suede outside all has a housing, housing is bigger, when erasing the board, the resistance of friction back can take place with four cement systems or the wooden frame on the blackboard in the shell of blackboard eraser, therefore, always make on the blackboard near near the letter written with chalk traces four edges frame area and four the drift angle areas and can not or be difficult to clean.Always leave " dead angle ", therefore not attractive in appearance, unhygienic yet.

Summary of the invention:

At the deficiency of conventional art and existing all invention technology, the present invention aims to provide a kind of: have real arbitrarily four adjustable dust-separation limits; But crocus pen touch mark also can be wiped the writing of watercolors on blackboard, and it is interchangeable that dryness is wiped head and moist wiping; When brush was constant, outer box of electricity consumption type dust suction or not electricity consumption type dust-collecting box were interchangeable; Under the situation that box is constant outside box or the not electricity consumption type control of dust outside the dust suction of blackboard eraser electricity consumption type; The wiping head of interchangeable different brush dirt area makes brush dirt cleannes and dust collection efficiency adjustable; Critical component is pulled down and can be washed: two blackboard erasers can be combined into a new blackboard eraser; Brush dirt area can increase; Blackboard eraser can increase the writing of wiping eminence according to need, and firmly; Do not stay the dead angle that can not or be difficult to clean when erasing the board; Easily wipe a stroke between the lines intuitively, punctuation mark; Unlike the blackboard eraser of some invention, rub body heaviness, inconvenience; And have the multi-functional nut that a kind of health has anti-skidding (be convenient to hand twist) function concurrently, the motion of the palm of the hand when borrowing the user to erase the board, the massage palm of the hand, not only attractive in appearance, and can keep healthy, body-building, reach and eliminate tired purpose.Complete function of the present invention can be realized switching and conversion between function in use fast according to temporary needs, can adapt to the needs of all instructions for uses, makes things convenient for and be more conducive to use.

The purpose of invention: be achieved by following proposal: multi-functional combined blackboard eraser of the present invention, its structure comprises at least: can regulate dust-separation flexible plastic limit 2, the tool health care, multi-functional nut 8 easy to use, "+" font blackboard eraser suede pedestal 4 and wiping suede 5, the rectangle blackboard eraser is wiped suede pedestal 11 and is wiped suede (dryness) 10 and (wipe suede 10 according to taking three kinds of materials, be respectively: rectangle blackboard eraser suede (dryness) is wiped head, the old wool felt wet rubbing of rectangle head, head is wiped in the suction of rectangle cloth matter), not electricity consumption type dust-collecting box 3, electricity consumption type dust-absorbing box 16, band handle type dust-collecting box 31 capable of being combined, the bar shaped brush 37 of band handle, multi-functional screw assemblies 38.Said structure, by various combination to realize the function of various needs."+" font dryness suede wiping head and rectangle dryness suede wiping head are used for the chalk trace on the erasing blackboard, use the former, and dust collection efficiency is higher, and uses the latter, and it is cleaner to erase the board, and both adapt to the needs of unlike material blackboard and different cleanliness factors; The wet wool felt matter wiping of rectangle head can thoroughly clean the chalk trace on the blackboard, also can wipe the watercolors person's handwriting; Head is wiped in haik matter suction then can clean writing on the wet blackboard, the washmarking on also can better dry blackboard; More than four kinds wipe head and all utilize its dilatancy to snap in the supporting separately pedestal, then pedestal is utilized nut to be fixed on without within electric precipitation type, electricity consumption dust suction type, the outer box of three kinds of blackboard erasers of band handle dust collection type capable of being combined, but just be combined into respectively the electricity consumption dust suction, without electric precipitation, band dryness wipe head or wet rubbing head, suction is wiped any blackboard eraser of head and is used.Be combined into without behind the electric precipitation type blackboard eraser, it does not make electricity consumption, but does not produce just high-efficiency dust collecting of noise, and dust flies upward everywhere when avoiding erasing the board, and its dust suction benefit of electricity consumption dust suction type blackboard eraser improves greatly; Band handle dust collection type blackboard eraser capable of being combined is with handle because of it, can play the effect of increasing, the more convenient writing of clipping higher position, but also high-efficiency dust collecting.Outside blackboard eraser on the box all design have the dustproof flexible plastic limit of four band steel bars to stick on eight blocks of magnet, the height on the dustproof adjustable flexible plastic dust-separation limit of each bar, adjustable arbitrarily separately, more conveniently play the dust-separation effect.All there is a combination bore at the box back side outside without electric precipitation, electricity consumption dust suction type, three kinds of blackboard erasers of band handle dust collection type capable of being combined.After wiping head and supporting pedestal thereof and putting into the outer box of blackboard eraser, the screw assemblies of wiping behind the supporting pedestal of head just stretches out outside the combination bore, utilizes the multifunctional massage health care nut and fixing screwed on then.Multifunctional massage health care nut is on the nut of semicircle ball-type, and the round projection of many semicircle ball-types is arranged, and the size of nut and centre of the palm position are harmonious, and Convenient blackboard is wiped grasping.Put forth one's strength when pinning blackboard eraser and erasing the board when hand, multifunctional massage type nut also can be massaged the palm of the hand, plays the tired effect of eliminating, the round projection on it, and in the time of also can playing nutting, the effect that hand is difficult for skidding.The strip blackboard eraser that handle is arranged, it can conveniently clean the existing electric dust absorption of inventing or bigger because of housing without the electric precipitation blackboard eraser, resist and make wiping suede and blackboard upper side frame generation distance to cause wiping the writing at unclean blackboard eraser four frames and four drift angle places with raised border on the blackboard, and blackboard eraser suede also is to utilize the expansiveness of its material that it is snapped in the bar shaped blackboard brush to fix, after the wearing and tearing of blackboard eraser suede, it is extracted out, and the blackboard eraser suede that only need more renew is convenient for changing.And with after its wiping suede extraction, it can utilize combination bore and the not electric dust collection type blackboard eraser of using on its handle, and combines with multi-functional nut, also can combine with band handle dust collection type blackboard eraser capable of being combined, at this moment the bar shaped blackboard brush is converted into the handle effect, blackboard eraser further can be increased.Band handle dust collection type blackboard eraser capable of being combined and one utilize multi-functional nut to combine and form a big blackboard eraser without electric precipitation type blackboard eraser, significantly improve the efficient that erases the board, with the time decreased that erases the board half.Time is combined to the combination of new function from original function, does not need to comprise glue etc. by any instrument, free-handly on the classroom can make up repacking, combined and instant, time can be finished combination less than one minute, had embodied multifunctionality, interstructural interchangeability, all functions are used as required, has complete function property durable in use, simple and practical property, flexible multi-purpose property, compact overall structure, the shortcoming of having avoided traditional blackboard to wipe and have now blackboard eraser is conspicuous.

Description of drawings:

Fig. 1 is not electricity consumption type control of dust wiping blackboard structure figure.

Fig. 2 is multi-functional nut of not electricity consumption type control of dust blackboard eraser and screw cutaway view.

Fig. 3 is rectangle blackboard eraser suede and groove pedestal Facad structure figure.

Fig. 4 is rectangle blackboard eraser suede and groove pedestal cutaway view.

Fig. 5 is an electricity consumption type dust absorption blackboard eraser structure chart.

Fig. 6 is band handle, type control of dust wiping blackboard structure figure capable of being combined.

Fig. 7 is band handle strip blackboard brush structure chart.

Fig. 8 is that band handle strip blackboard eraser removes behind the blackboard eraser suede and band handle control of dust blackboard eraser combined effect figure Fig. 9 is the combined effect figure that is with handle control of dust blackboard eraser and not electricity consumption type control of dust blackboard eraser.

Below, will further describe the present invention with embodiment in conjunction with the accompanying drawings.Blackboard eraser suede pedestal of the present invention, multi-functional nut, blackboard eraser shell, handle, battery case are plastics and make and water-fastly wash, gently.

The specific embodiment:

As shown in Figure 1: magnet 1, totally eight by on difficult four the angle all directions that are fixed on box body 3 of glue, can regulate dust-separation flexible plastic limit 2, totally four, wrap steel bar according to its following part, (flexible plastic limit and steel bar cement by glue), and be bonded on the magnet of four edges of box body periphery, the flexible plastic limit dots among the figure.Because of it is bonded on the magnet,, can't fall down so four dust-separation flexible plastic limits are highly arbitrarily adjustable separately."+" font blackboard eraser suede pedestal 4, embed on it three blackboard eraser suedes 5, longitudinally one longer, its right and left on one side one then shorter.Install when wiping suede, embed blackboard eraser suede pedestal with vertical one earlier, again with about two embed respectively, after blackboard eraser suede installs, again blackboard eraser suede pedestal is put into the outer box of not electricity consumption type control of dust blackboard eraser, can regulate dust-separation flexible plastic limit and make for thin but also soft plastics not only, its lower end is wrapped steel bar and is sticked on magnet box body outside, and its height is adjustable (moving can moving on the magnet).Guarantee when erasing the board, no matter the abrasion condition of the inside blackboard eraser suede how, always it can be adjusted to effective dust-separation height.Avoid too much wasting blackboard eraser suede, and effectively stop dust outwards to fly upward.Dust during its crocus, major part fall in the space 6 of blackboard eraser (having four spaces).

As shown in Figure 2: not electricity consumption type control of dust blackboard eraser, after blackboard eraser suede pedestal installs blackboard eraser suede, blackboard eraser suede pedestal is put into control of dust blackboard eraser shell, make blackboard eraser suede pedestal screw spiral shell public affairs 7 behind, pass the screw aperture of blackboard eraser shell center, the multi-functional nut 8 of screwing on again can be fixed on blackboard eraser suede pedestal and blackboard eraser suede on the shell at this point, can use 3.Multi-functional nut 8 volumes are bigger, spread all over many circular spherulas 9 on it again, make it not only when hand is pinched blackboard eraser and erased the board, multi-functional nut 8 and many circular small embossments 9 are massaged the palm of the hand, can rise and eliminate tired body-building purpose, and circular small embossment 9, when hand screw, the effect of Skidproof labor-saving is arranged, make things convenient for tightening or unscrewing of screw.Multi-functional nut 8 is made for plastics, and its volume is made the suitable size of being convenient to palm of the hand massage and blackboard eraser use.

As shown in Figure 3: a rectangular blackboard eraser suede 10 lower ends embed in the rectangle blackboard eraser suede pedestal 11, after wiping suede installed, its pedestal can be the same with "+" font blackboard eraser suede pedestal 4, is mounted to not electricity consumption type control of dust blackboard eraser, electricity consumption type control of dust blackboard eraser is in the band joystick type control of dust blackboard eraser.Its material is: traditional blackboard is wiped the suede material, old wool felt type wet rubbing head (can use when wiping watercolors, and not during the chalk trace of easy-clear can with), the suction of cloth matter wipe head (with the cloth matter of easily suction make or with other materials make also can) three kinds.

As shown in Figure 4: after blackboard eraser suede 10 is installed in and wipes on the suede pedestal 11, again pedestal is put into the control of dust blackboard eraser, in the outer box of corresponding blackboard eraser that needs among the control of dust blackboard eraser three capable of being combined of dust absorption blackboard eraser, band handle to use, the centre bit at its pedestal back side is equipped with screw spiral shell public affairs 12, pack into need in the housing after, tighten multi-functional nut behind by housing and fix.

As shown in Figure 5: blackboard eraser suede 13 (can be long piece type and wipe suede 10 or "+" type wiping suede 5), be installed in blackboard eraser suede pedestal 17 (wiping on the pedestal that suede matches) for wipe suede or " ten " font at the rectangle that uses, after installing, it is by pedestal screw spiral shell public affairs 18 behind, pass the combination bore of the correspondence position at the electricity consumption type dust-absorbing box back side, tighten with multi-functional nut, blackboard eraser suede and pedestal are fixed on the electricity consumption type dust-absorbing box box body.Chalk dust net 21 is blocked in the below of blackboard eraser suede pedestal, and blocking the chalk dust net is the cotton strip edge, promptly is unlikely to hinder circulation of air, can play the effect of filter dirt again, blocks dirt accumulation under the ash net filter at 22 places.The motor of employed exhaust vertically downward and flabellum 28, be installed in the vertical lower of blackboard eraser suede pedestal, be more conducive to efficient the suction and be mixed with the air of chalk dust (because of chalk dust is subjected to gravity effect, slowly waving vertically falls down, and vertically takes out the air that is mixed with chalk dust, is that dust collection efficiency is the highest), and motor and flabellum 28 are installed in outside the laying dust cavity, make motor and flabellum exempt from a bread dust, much cleaner, also exempt from the weakly alkaline corrosion of dust.The air that flabellum is taken out downwards; enter via protective plastic fence 26; the effect of plastics fence 26 be prevent with hand misplace into the flabellum place by flabellum injure hand, its only play a part the protection hand; it is designed to the various barrier shape of multiple hole; but do not hinder passing through of air-flow; it is fixing by the resilient Plastic hanger 26 that can stretch, and on the fixedly spill position of blackboard eraser shell, 27 open or the circular shaft of switch for it turns.Maintenance after the installation of motor electric fan 28 or the evil idea all need be carried out in the passage after opening plastics fence 26, makes installation and maintenance and cleaning motor, flabellum 28 convenience, easy.At outer casing underpart motor switch 23 and two batteries boxes 24 are installed, (motor uses 1.5 volts of dry cells of two joints or rechargeable battery), motor switch 23 is designed to close, just change, the counter-rotating third gear is adjustable, when using positive rotating function, air enters in four spaces of suede bar 13, and chalk dust net filtration after filtration, dedusting, clean air is discharged downwards, when using reverse function, needs earlier blackboard eraser suede pedestal 17 to be unloaded, take off the dirt filtrating screen 21 that is bonded on the magnet, again blackboard eraser suede pedestal 17 is set up, preferably used instead cloth matter suction type this moment and wipe head and corresponding pedestal, open invert button again, then the wind of blackboard eraser is sucked by bottom fence mouth 26 places at this moment, blow at place, four spaces toward blackboard eraser suede 13, and this moment, blackboard eraser had the chalk watercolors trace of wiping on the wet blackboard, and the effect that makes wet blackboard drying is fast arranged.Behind the switch pass, promptly stop electricity consumption.On the blackboard eraser on the shell 16, on the box body of glue around the blackboard eraser box, adhering to eight blocks of magnet 15, be stained with adjustable for height band steel bar up and down on it: adjustable dust-separation flexible plastic limit 14, be distributed in totally four on four limits up and down of wiping suede, stretch out outside the box body on its limit, play to prevent the dust from flying effect, and softness can not abrade blackboard.

As shown in Figure 6: have eight blocks of magnet 30 and adjustable dust-separation flexible plastic limit 33 (totally four) on the type control of dust blackboard eraser shell capable of being combined, the rub body shell upper has one handle 31, multi-functional combination bore 32 is arranged above, handle is convenient to hold blackboard eraser, be convenient to the chalk writing of the higher or lower of effortless wiping, there is the anti-skidding nut of multi-function health-care at the blackboard eraser back.Its box body can be fixed "+" font suede pedestal, but the also square suede pedestal of fixed length.

As shown in Figure 7: band handle strip blackboard eraser is long narrow, light, is convenient to see its thick long strip type blackboard eraser suede 36 down, and blackboard eraser suede embeds in the blackboard eraser 37, utilizes the expansive force of blackboard eraser suede to fix, and blackboard eraser has handle 34 and multi-functional combination bore 35.Band handle strip blackboard eraser can be cleaned near the writing four frames on the blackboard that control of dust blackboard eraser and electric dust absorption type blackboard eraser be difficult for cleaning, with the writing on four corners, though blackboard eraser can not prevent dust, but after the wearing and tearing of blackboard eraser suede, it can be extracted out, promptly replaceable new suede bar, and pedestal can use repeatedly for a long time, avoid waste environmental protection; And its accurate stroke wiping between the lines, all other blackboard eraser dexterities are easy to use, and after it lays down the suede bar, by its multi-functional combination bore and screw, then transfer it to handle function.

As shown in Figure 8: lay down the band handle strip blackboard eraser behind the suede bar, by multi-functional combination bore on its handle and screw assemblies 38, firmly link together with not electricity consumption of band handle type control of dust blackboard eraser flexibly, make band handle strip blackboard eraser have handle function, hand it, can make the writing that connects band handle control of dust blackboard eraser (also can connect the control of dust blackboard eraser of the not being with handle) eminence that cleans off a blackboard easily on it easily, be convenient to the not high teacher of height and use.Its structure is more solid than other invention, more compact structure.And equally has adjustable dust-separation flexible plastic limit sticking on the magnet.Available "+" font of its brush is wiped suede and corresponding pedestal or rectangle and is wiped suede and pedestal.

As shown in Figure 9: the band handle type control of dust capable of being combined blackboard eraser on the left side, be connected in together by its screw behind by the multi-functional combination bore on its handle and another not electricity consumption type control of dust blackboard eraser, become a blackboard eraser.It can make the area of the suede that erases the board increase by one times.Teacher often says; Time is life in the time of on class, before appendix, teacher writes a blackboard letter written with chalk sometimes, when erasing the board, tired again hot sweat direct current, also dislike the time that erases the board fast inadequately, and use this blackboard eraser that two blackboard erasers are combined into, not only sound construction, light, solid, and make the efficient that erases the board increase by one times, and as: wipe a writing on the blackboard in original 3 minutes, and only needed one fen half just can wipe now.Be applicable to the large-area letter written with chalk vestige of wiping in a hurry.A new blackboard eraser of these two dust collection type blackboard eraser be combined intos, its box body can be fixed "+" font suede, pedestal, but the also square suede pedestal of fixed length, it has the height-adjustable dust-separation flexible plastic of the six roots of sensation that is bonded on magnet limit around wiping suede, significantly improve when wiping dirt efficient, also significantly improved dust catching efficiency, be unlikely dust and fly upward in the air.Be combined in another control of dust blackboard eraser on the band handle control of dust blackboard eraser, it wipes suede is the extension shape blackboard eraser suede of making 39.After making the combination of two blackboard erasers, it can not leave vacancy in the middle of wiping suede.

Adopt the combined multi-functional blackboard eraser of said structure, having reached electrical dust-removing and automatic dust collection can transform, and single brush A body uses and two brush bodies can be used in combination, xerotripsis and wet rubbing all can, crocus pen touch and watercolors trace can both use; Can be just commonly used, also can increase usefulness, other blackboard eraser can be accurately cleaned and the position can not be cleaned, tool is to the wet electronic blowing functions/drying of blackboard, and dustproof edge appoints needs adjustable, and has anti-skidding, the multi-functional nut of health care, its each modular construction is simple, is easy to processing and fabricating, be easy to use, especially sufficient its can make up arbitrarily temporarily according to need, converts other function to temporarily, it is lower more to have embodied infrastructure cost of the present invention, flexible multi-purpose, compact overall structure, long-lived characteristics.

Claims (12)

1, a kind of type control of dust multifunctional health blackboard eraser capable of being combined, it is characterized in that: this type control of dust multifunctional health blackboard eraser capable of being combined, by designing respectively: " ten " font dryness suede is wiped head, rectangle dryness suede is wiped head, and head wiped by the wet wool felt of rectangle and haik matter is wiped head: wipe head and above four kinds of pedestals of wiping supporting " a ten " font or two kinds of shapes of rectangle for four kinds; Without electric precipitation type, electricity consumption dust suction type, the outer box of three kinds of blackboard erasers of band handle dust collection type capable of being combined, the bar shaped blackboard brush of design makes up the spiral shell public affairs separately, and multi-functional nut is formed, and detachable combination.

2, according to the described type control of dust multifunctional health blackboard eraser capable of being combined of claim 1, it is characterized in that: " ten " font dryness suede is wiped head, utilizes the part of its material to embed the groove of the supporting pedestal of " ten " font, thereby is fixed on " ten " font pedestal; Rectangle dryness suede is wiped head, the wet wool felt of rectangle wipe head and haik matter wipe head also be utilize form separately a material part of wiping head embed separately in the supporting rectangle base recess, thereby be fixed on the rectangle pedestal; Above-mentioned all " ten " fonts or rectangular pedestal back all are vertically installed with combination spiral shell public affairs.

3, according to the described type control of dust multifunctional health blackboard eraser capable of being combined of claim 1, it is characterized in that: the present invention designed without the outer box of electric precipitation type blackboard eraser, the outer box of electricity consumption dust suction type blackboard eraser, the outer box of band handle dust collection type blackboard eraser capable of being combined, its box body is continued to use glue all around and is fixed with eight blocks of magnet; The dustproof flexible plastic limit of four band steel bars just sticks on the magnet of box body outer.

4, according to claim 1 or 2 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: without the outer box of electric precipitation type blackboard eraser, its box bottom is provided with combination bore, can wipe " ten " font pedestal of head with being fixed with " ten " font dryness suede, wipe the rectangle pedestal of head with being fixed with rectangle dryness suede, wipe the rectangle pedestal of head with being fixed with the wet wool felt of rectangle, wipe the rectangle pedestal of head with being fixed with haik matter, they can be placed successively without in the outer box of electric precipitation type blackboard eraser, by combination bore without the outer box of electric precipitation type blackboard eraser bottom, more than various " ten " fonts or rectangle pedestal combination spiral shell public affairs behind, with multi-functional nut, can with they successively fixed combination become: band " ten " font dryness suede wipe head and supporting pedestal thereof without electric precipitation type blackboard eraser, the square dryness suede of belt length wipe head and supporting pedestal thereof without electric precipitation type blackboard eraser, the square wet wool felt of belt length wipe head and supporting pedestal thereof without electric precipitation type blackboard eraser, the square cloth matter of belt length wipe head and supporting pedestal thereof without electric precipitation type blackboard eraser.

5, according to claim 1 or 2 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: the outer box of electricity consumption dust suction type blackboard eraser, its box bottom is provided with combination bore, can wipe " ten " font pedestal of head with being fixed with " ten " font dryness suede, wipe the rectangle pedestal of head with being fixed with rectangle dryness suede, wipe the rectangle pedestal of head with being fixed with the wet wool felt of rectangle, wipe the rectangle pedestal of head with being fixed with haik matter, they can be placed successively in the outer box of electricity consumption dust suction type blackboard eraser, combination bore by the outer box of electricity consumption dust suction type blackboard eraser bottom, more than various " ten " fonts or rectangle pedestal combination spiral shell public affairs behind, with multi-functional nut, can with they successively fixed combination become: band " ten " font dryness suede is wiped the electricity consumption dust suction type blackboard eraser of head and supporting pedestal thereof, the square dryness suede of belt length is wiped the electricity consumption dust suction type blackboard eraser of head and supporting pedestal thereof, the square wet wool felt of belt length is wiped the electricity consumption dust suction type blackboard eraser of head and supporting pedestal thereof, and the square cloth matter of belt length is wiped the electricity consumption dust suction type blackboard eraser of head and supporting pedestal thereof.

6, according to claim 1 or 2 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: the outer box of band handle dust collection type blackboard eraser capable of being combined, its box bottom is provided with combination bore, can wipe " ten " font pedestal of head with being fixed with " ten " font dryness suede, wipe the rectangle pedestal of head with being fixed with rectangle dryness suede, wipe the rectangle pedestal of head with being fixed with the wet wool felt of rectangle, wipe the rectangle pedestal of head with being fixed with haik matter, they can be placed successively in the outer box of band handle dust collection type blackboard eraser capable of being combined, combination bore by the outer box of band handle dust collection type blackboard eraser capable of being combined bottom, more than various " ten " fonts or rectangle pedestal combination spiral shell public affairs behind, with multi-functional nut, can with they successively fixed combination become: band " ten " font dryness suede is wiped the band handle dust collection type blackboard eraser capable of being combined of head and supporting pedestal thereof, the square dryness suede of belt length is wiped the band handle dust collection type blackboard eraser capable of being combined of head and supporting pedestal thereof, the square wet wool felt of belt length is wiped the band handle dust collection type blackboard eraser capable of being combined of head and supporting pedestal thereof, and the square cloth matter of belt length is wiped the band handle dust collection type blackboard eraser capable of being combined of head and supporting pedestal thereof.

7, according to the described type control of dust multifunctional health blackboard eraser capable of being combined of claim 1, it is characterized in that: design has a fixed handle on bar shaped blackboard brush pedestal; The brushing of strip blackboard, thus it is fixing by the groove that a part embeds bar shaped blackboard brush pedestal.

8, according to claim 2,4,6 or 7 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: utilize set combination spiral shell public affairs on combination bore and its pedestal on the bar shaped blackboard brush base handle without the vertical protrusion in electric precipitation type blackboard eraser back, and multi-functional nut, can make bar shaped blackboard brush pedestal and combine without electric precipitation type blackboard eraser; Utilize combination bore and the combination bore of being with on the handle dust collection type blackboard eraser capable of being combined handle on the bar shaped blackboard brush base handle, the public and multi-functional nut by the combination spiral shell, and make bar shaped blackboard brush pedestal and be with handle dust collection type blackboard eraser capable of being combined to combine.

9, according to claim 2,4 or 6 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: utilize without set combination spiral shell public affairs on vertical its pedestal that protrudes in electric precipitation type blackboard eraser back, combination bore and multi-functional nut on the band handle dust collection type blackboard eraser capable of being combined handle are combined and make without electric precipitation type blackboard eraser and band handle dust collection type blackboard eraser capable of being combined.

10, according to claim 1,4,5,6,8 or 9 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: multi-functional nut is the semicircle ball-type, and the round projection of many more small semicircle ball-types is arranged on the nut of semicircle ball-type.

11, according to claim 1 or 5 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: the outer box of electricity consumption dust suction type blackboard eraser, its motor and flabellum are provided with vertically downward, and motor, flabellum and all circuit all are in beyond the dust-collecting cavity.

12, according to claim 1 or 5 described type control of dust multifunctional health blackboard erasers capable of being combined, it is characterized in that: the outer box of electricity consumption dust suction type blackboard eraser, its motor switch is relevant, the third gear of just changeing, reverse is adjustable, controls respectively that flabellum makes its stall, just changes, reverses on the motor; The cotton of design blocks its peripheral zone steel bar of dust net, makes to block the dust net and stick in the outer box of electricity consumption dust suction type blackboard eraser on two blocks of magnet.

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