CN103465698B - Dust-removing blackboard eraser and using method thereof - Google Patents
Dust-removing blackboard eraser and using method thereof Download PDFInfo
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- CN103465698B CN103465698B CN201310401232.3A CN201310401232A CN103465698B CN 103465698 B CN103465698 B CN 103465698B CN 201310401232 A CN201310401232 A CN 201310401232A CN 103465698 B CN103465698 B CN 103465698B
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Abstract
The present invention relates to a kind of dust-removing blackboard eraser and using method thereof.This blackboard eraser comprises rub body and pedestal, and described pedestal is provided with groove and chamber; Its main points are that described pedestal port periphery is provided with the inside dedusting sheet of port, and rub body face is higher than the port surface of dedusting sheet; During pressing pedestal, blackboard is touched in dedusting sheet and rub body face simultaneously, and the position in rub body face changes, the port surface of rub body face and dedusting sheet is with high, form gap between rub body and dedusting sheet, chamber opens wide, and dust is stored in chamber by backstop by the dedusting sheet of gap location.Rub body face described in this blackboard eraser to pedestal bottom between be provided with elastomer, rub body wall be set to smooth and have gradient rub body surface; Meanwhile, described blackboard eraser also can arrange magnetic part, and rub body wall is provided with the gap pipe box coordinated with described dedusting sheet tip, and establish stop tab in chamber, dedusting sheet arranges cut-out mouth, and pedestal arranges the catch etc. of rub body.It efficiently solves the problem that dust disperses everywhere, contributes to the healthy of protection teachers and students.
Description
Technical field
The present invention relates to school supply and stationery, specifically refer to a kind of dust-removing blackboard eraser and using method thereof.
Background technology
Blackboard eraser, blackboard are requisite school supply and stationery in education activities.Present blackboard is formed through disposable compacting by high polymer alloy particle and epoxy resin mostly, can attract mutually with magnetisable material.In teaching process, during general blackboard eraser wiping chalk writing, can cause the phenomenon that dust flies upward everywhere, impact teaching, contaminated environment, harm teachers and students are healthy.In order to solve problems, people also have developed the blackboard eraser of many dedustings.As the Authorization Notice No. CN201646175U that Chinese patent literature is published, authorized announcement date 2010.11.24, utility model name is called " dust-proof blackboard eraser "; And the Authorization Notice No. CN202413199U that Chinese patent literature is published, authorized announcement date 2012.09.05, utility model name is called " ash-collecting blackboard eraser ".But all because of DeGrain, troublesome poeration, the reason such as expensive, and more difficult popularization.In addition, ordinary blackboard eraser is generally comparatively required great effort when blackboard wiping, and effect is poor, speed is slower.These problems are not also solved so far preferably.
Summary of the invention
For overcoming above-mentioned deficiency, technical problem to be solved by this invention provides a kind of dust-removing blackboard eraser and the using method thereof that facilitate wiping for the present situation of prior art.Its objective is and to be achieved through the following technical solutions.
A kind of dust-removing blackboard eraser, this blackboard eraser comprises rub body and pedestal, and described pedestal is provided with groove, and rub body is arranged in a groove, forms the chamber storing dust between described rub body wall and described base internal wall; It is characterized in that described pedestal port periphery is provided with the inside dedusting sheet of port, rub body face is higher than the port surface of dedusting sheet; During pressing pedestal, dedusting sheet and rub body touch blackboard simultaneously, and the position in rub body face changes, the port surface of rub body face and dedusting sheet is with high, form gap between rub body and dedusting sheet, chamber opens wide, and dust is stored in chamber by backstop by the dedusting sheet of gap location.Namely this blackboard eraser is by when being pressed in wiping on blackboard, and dust enters in chamber by the gap between rub body and dedusting sheet; When unclamping this blackboard eraser, after namely taking off this blackboard eraser, rub body ejects the port surface of dedusting sheet, and position, rub body face is restored, and rub body is touched mutually with dedusting sheet, the space closure formed between rub body and dedusting sheet, and chamber closes, and dust is stored in chamber.
According to said structure feature, also can be provided with magnetic part at blackboard eraser, pedestal port periphery is provided with the inside dedusting sheet of port, and rub body face is higher than the port surface of dedusting sheet; When magnetic part and blackboard adhesive, dedusting sheet and rub body touch blackboard simultaneously, and the position in rub body face changes, the port surface of rub body face and dedusting sheet is with high, form gap between rub body and dedusting sheet, chamber opens wide, and dust is stored in chamber by backstop by the dedusting sheet of gap location.The i.e. magnetic part of this blackboard eraser and blackboard adhesive, this blackboard eraser is on blackboard during wiping, and dust enters in chamber by the gap between rub body and dedusting sheet; When magnetic part separates with blackboard, after namely taking off this blackboard eraser, rub body ejects the port surface of dedusting sheet, and position, rub body face is restored, and rub body is touched mutually with dedusting sheet, the space closure formed between rub body and dedusting sheet, and chamber closes, and dust is stored in chamber.
Meanwhile, at above-mentioned pedestal or the pedestal of unclamping from before blackboard takes off, namely this two classes blackboard eraser above-mentioned takes off it from blackboard
Before, first the dedusting sheet of this blackboard eraser is pressed toward rub body place, inner side, the dedusting sheet of this blackboard eraser still on blackboard is touched mutually with rub body, gap-closing between dedusting sheet and rub body, chamber from open wide become closed, make all dust all by after backstop also sealing in the chamber, then this this blackboard eraser is taken off from blackboard; When rub body wall is provided with the gap pipe box coordinated with dedusting sheet tip, after taking off this blackboard eraser, its dedusting sheet is pressed toward inner side, the dust on dedusting sheet is entered in the pipe box of gap.
Arrange the structure of magnetic part according to this blackboard eraser above-mentioned, described magnetic part is fixed on described pedestal, or is arranged between described rub body and described pedestal, or is embedded in described rub body, or described dedusting sheet is magnetic.When wiping chalk writing, need this blackboard eraser to be applied pressure to blackboard side with increasing friction force erasing out handwriting; Be provided with magnetic part, make to produce suction between this blackboard eraser and blackboard, reduce to blackboard side institute applied pressure; Meanwhile, the magnetic force size of magnetic part is designed to, when mobile blackboard is wiped, just be wiped by its chalk writing.The specific design scheme of above-mentioned magnetic part designs according to prior art, as: as described in dedusting sheet adopt rubber magnet; The vibrational power flow of said structure four kinds of magnetic parts also can be selected as required, as long as can reach the technology order of dedusting of the present invention and storage dust.
Described rub body is arranged on the middle part of described pedestal, and described chamber is looped around around described rub body.Above-mentioned rub body is arranged at the structure of base central, and the dust that wiping got off to make this blackboard eraser is stored in chamber by backstop relatively easily.Described rub body face to pedestal bottom between be provided with elastomer, when this blackboard eraser is when stressed, the position in rub body face changes, thus rub body face is become with it with high from the original port surface than dedusting sheet is high.Meanwhile, described in above-mentioned design, rub body also can be set to elastomer, or is provided with spring between rub body and pedestal.The rub body of described elastomer structure adopts the elastomeric elements such as sponge.
Described rub body wall is provided with the rub body surface of gradient; Described gradient is by being set to radian, or the oblique angle being provided with certain gradient realizes.Namely described rub body contact with blackboard when wiping rub body surface Zhou Duanzhi described in rub body contact with dedusting sheet when taking off this blackboard eraser rub body surface Zhou Duan between rub body, be provided with gradient rub body surface.The gradient on described rub body surface is set to the gradient of terrace with edge side, or the gradient on described rub body surface designs for radian.Said structure is specially: between described rub body and dedusting sheet, the part rub body shape of gap location is set to terrace with edge, or between described rub body and dedusting sheet, the part rub body periphery of gap location designs for radian.Preferably, between rub body and dedusting sheet, the part rub body shape of gap location is set to terrace with edge, and its gap location is the plane tilted, thus the rub body slip ratio of described dedusting sheet and gap location is easier to, and also can be set to and be smoothly connected between face and face.This design makes rub body during blackboard wiping and produces gap between dedusting sheet, by this blackboard eraser from before blackboard takes off or after taking off, also can control rub body and touch mutually with dedusting sheet.
Described rub body wall is provided with gap pipe box, and described gas tube is arranged with and the breach that coordinates of dedusting sheet tip, dedusting sheet and rub body face end collide place to rub body wall gap pipe box between rub body surface be set to smooth.Described breach design and rub body surface are set to smooth for guaranteeing collection dust further.When this blackboard eraser takes off period from blackboard, a small amount of dust is contained in the port of dedusting sheet, enter in the gap pipe box of rub body wall to make it, promote the relative sliding of dedusting sheet and gap location rub body, the rub body surface of this part is set to smooth, therefore dust can not drop because of slip, makes dust all be sealed and store.Meanwhile, above-mentioned rub body surface is set to smooth design can be multiple, as described in lubricious material rubber or film (film) wrap up, the port in rub body face is provided with the flexible lubricious material as rubber, makes to carry out close contact between itself and dedusting sheet; Because resilient sponge and film shape all can be compressed, so when ejecting at upper part rub body, its film is still in straight state.The method of said structure or employing spray figure lubricious material, the sponge on rub body surface is provided with larger density, and rub body is combined into by the subsides of rub body face, foam or plastic body, spring etc., or is provided with sheet rubber at rub body face Zhou Duan.Its surface is set to smooth according to prior art by above-mentioned foam or plastic body.
After this blackboard eraser takes off, the rub body surface of dedusting sheet and gap location is after relative sliding stops, and the port of dedusting sheet docks with the gap pipe box of rub body wall just, and the port of dedusting sheet is provided with certain gradient, the dust of dedusting sheet port, due to the effect of gravity, enters in chamber; Or after taking off this blackboard eraser, its dedusting sheet is pressed toward inner side, make the dust on dedusting sheet enter in the pipe box of gap, just can clear up afterwards.The shape of described gap pipe box, according to prior art, has multiple design; Fan-shaped gas tube or rectangle gap pipe box is counted as gas tube is sheathed.The position of its gap pipe box also can be provided with many places; As design rub body wall vertical rub body on the surface, or design is at the rub body tilted on the surface, and design is on the boundary line of rub body not between coplanar.
Described dedusting sheet is windshield wiper blade formula sheet rubber, and described dedusting sheet is the part of chamber.Dedusting sheet is the design of windshield wiper blade formula, improves dust removing effects and facilitates wiping; Meanwhile, in order to enable this dedusting sheet backstop dust better, dust is made to enter in chamber; Dedusting sheet requires to be designed with rational flexibility or shape, and the ora terminalis place of dedusting sheet is comparatively thin, is convenient to be stored in chamber by dust while dust backstop is in chamber.The material selection of dedusting sheet requires it is the material that elasticity and hardness can reach corresponding requirements, as: rubber.Also can design, as dedusting sheet is looped around around rub body according to the needs of actual conditions for the syndeton between dedusting sheet and rub body; The materials and structures shape of dedusting sheet also can be selected as required.
Be provided with the stop tab that anti-dust falls after rise in described chamber, described stop tab is connected with dedusting sheet.Under the backstop action of dedusting sheet, dust enters chamber, but because dust is after Action of Gravity Field, the air drag be subject to is relatively large, so whereabouts effect is not clearly.Now, dust can't drop to bottom in chamber at once, has minority dust can come back to again the port surface of dedusting sheet, can have a certain impact like this to dedusting afterwards; So be provided with the stop tab preventing dust from falling after rise in chamber, improve dust removing effects further.Preferably, described dust stop tab is connected to dedusting sheet, dedusting sheet is stressed vary in size time, can not collide between its stop tab and dedusting sheet, there is gap all the time, as the passage that dust enters.Because dedusting sheet is connected by a few place Zhi Zhudian with between stop tab, therefore when this blackboard eraser is at wiping chalk writing, can not stop that dust falls bottom along sidewall.According to different designs situation, stop tab also can be connected with rub body, or is connected with pedestal, and stop tab also can determine whether arrange according to the actual needs.
Cut-out mouth is provided with between described dedusting sheet and pedestal; Detachable between described rub body and described pedestal, detachable between described wiping face and rub body matrix, described rub body is provided with rub body wall cover.After this blackboard eraser uses a period of time, when the dust in chamber acquires a certain degree, then the cleaning needed.Because being provided with cut-out mouth between dedusting sheet and pedestal, during cleaning, only needing first the dedusting sheet of this blackboard eraser and one end of rub body all inwardly to be compressed, then by the port of dedusting sheet to turning up, just the dust in its chamber can being cleaned out.The use part of described blackboard eraser is not whole rub body but wiping face, after long-time use rub body, the wiping face of rub body can be damaged to a certain extent, but the rub body matrix of this blackboard eraser can continue to use, now this blackboard eraser whole is abandoned, just cause the waste of resource; So be set to detachable between rub body and pedestal, just solve this problem.Method for dismounting between described rub body and pedestal has various, just can realize as being provided with button-shaped clamping structure; And be connected and fixed according to prior art between described rub body and pedestal, be connected and fixed as adopted the method for bonding.In like manner, detachable between the wiping face of described rub body and rub body matrix, also can design according to prior art.As rub body matrix is set to plastics or sponge etc., dismountable wiping face is set to rub body face and pastes; Rub body face is pasted and is combined with spring with this understanding, when when blackboard wiping, just can not make space closure because of the deformation after rub body pressurized, further ensure that to there is gap all the time between dedusting sheet and rub body.Described rub body is provided with rub body wall cover, preferably, is arranged on upper part rub body.Described rub body wall cover outer wall is set to smooth, also can guarantee the existence in its gap, and being smoothly connected between wiping face and rub body matrix, promotes the slip between rub body and dedusting sheet.In addition, blackboard wiping time, when the pressure that rub body is varied in size, because rub body is provided with rub body wall cover, between rub body and dedusting sheet, gap can be there is all the time, space closure can not be made because of the elastic deformation of rub body.Rub body face is a little more than described rub body wall cover port surface, described rub body wall cover port is set to flexibility, wiping face Zhou Duan is provided with the lubricious material as rubber and so on, described rub body wall is set in the upper part rub body near rub body face, be smoothly connected between the wiping face of making and rub body matrix, and do not affect the use of blackboard eraser.According to architectural feature and the principle of above-mentioned rub body wall cover, more ensure that the practicality of this blackboard eraser, also can avoid the waste of resource.
Described pedestal is provided with the catch of rub body, or is provided with more than one fixed block, limited support part between pedestal and rub body.The catch of rub body wall effectively prevent the distortion of rub body, ensure that chamber not by the impact of rub body; Meanwhile, the contact surface of catch can be more smooth than general rub body, is also conducive to the bottom that chalk drops to chamber.In addition, when also realizing identical function with more than one fixed block, namely the side, front and back of described pedestal might not be identical with rub body supporting construction on left and right sides, also can design according to actual needs.When being provided with spring between rub body and pedestal, between rub body and pedestal, also limited support part can be set; Namely when wiping, limited support part makes rub body compress into base bottom to pedestal again, ensure that rub body face can touch blackboard with the port surface of dedusting sheet simultaneously; Certain space is provided with, for holding dust between front and back both sides dedusting sheet and rub body.Described base perimeter is set to round and smooth, or is provided with finger striped, or the design in semielliptical shape, is convenient to the centre of the palm and grips this blackboard eraser, also can adopt as similar semielliptical shape structures such as mouses simultaneously, and the structure such as hemispherical.
Comprehensive above-mentioned feature, namely described in this blackboard eraser, between rub body and pedestal, connected mode is various.As: rub body is directly connected with pedestal; Rub body is connected with pedestal in conjunction with spring or magnetic part; Detachable between described rub body and described pedestal; Detachable between the wiping face of described rub body and rub body matrix; Described rub body is provided with rub body wall cover.Described rub body also can be combined by different connected mode mutually between pedestal.According to said structure feature, namely its using method is: described rub body is adsorbed on blackboard respectively by pressing pedestal or magnetic part, and namely when blackboard wiping, described rub body and described dedusting sheet touch blackboard simultaneously, the position in rub body face changes, and the port surface of rub body face and dedusting sheet is with high; Now, form gap between dedusting sheet and rub body, chamber opens wide, and dust enters in chamber by the gap between rub body and dedusting sheet; When unclamping pedestal or pedestal takes off from blackboard, after namely taking off this blackboard eraser, rub body ejects the port surface of dedusting sheet, position, rub body face is restored, and rub body is touched mutually with dedusting sheet, the space closure formed between rub body and dedusting sheet, chamber closes, and dust is stored in chamber; Simultaneously, above-mentionedly unclamping pedestal or pedestal from before blackboard takes off, namely this two classes blackboard eraser above-mentioned is from before blackboard takes off, first dedusting sheet is pressed toward rub body place, inner side, dedusting sheet still on blackboard is touched mutually, the gap-closing between dedusting sheet and rub body with rub body, chamber from open wide become closed, after the dust backstop of gap location also sealing in the chamber, then pedestal is taken off from blackboard; When rub body wall is provided with the gap pipe box coordinated with dedusting sheet tip, after taking off pedestal, its dedusting sheet is pressed toward inner side, the dust on dedusting sheet is entered in the pipe box of gap.In above-mentioned using method, rub body arranges magnetic part or does not arrange magnetic part and all can realize technical purpose of the present invention and technique effect, and the active force of its magnetic part is identical with the object of pressing pedestal.
Compared with prior art, the present invention makes this blackboard eraser automatic absorbing on blackboard by arranging respective magnetic part, when blackboard wiping without the need to again to blackboard side to applying pressure, only need promote blackboard eraser and make it slide on blackboard, just can by letter written with chalk wiped clean.Meanwhile, the dedusting sheet being similar to windshield wiper blade set on the pedestal port periphery of groove notch, both can be stored in container chamber by the dust backstop of erasing, also can not be hindered the slip of this blackboard eraser on blackboard, better dust removal effect.Present invention efficiently solves the problem that dust disperses everywhere, contribute to teaching and carry out better, protection teachers and students' is healthy.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention one sectional structure schematic diagram, has done to confine in figure, and arrow is dedusting sheet Impact direction, and dotted line is the state after dedusting sheet stress and deformation.
Fig. 2 is the portion that the confines structure for amplifying schematic diagram of Fig. 1.
Fig. 3 is that the rub body of Fig. 1 stretches out dedusting sheet state structural representation.
Fig. 4 is that the tilt position on rub body surface in the improved structure schematic diagram one, figure of Fig. 1 improves.
Fig. 5 is that the gradient on rub body surface in the improved structure schematic diagram two, figure of Fig. 1 designs for radian.
Fig. 6 is embodiments of the invention two sectional structure schematic diagram, is provided with magnetic part in figure between rub body and pedestal.
Fig. 7 is embodiments of the invention three sectional structure schematic diagram, and the magnetic part namely in Fig. 6 is changed to spring.
Fig. 8 is the improved structure schematic diagram of Fig. 7, has set up limited support part in figure between rub body and pedestal.
Fig. 9 is embodiments of the invention four sectional structure schematic diagram, and in figure, rub body has set up gap pipe box.
Figure 10 is that the rub body of Fig. 9 stretches out dedusting sheet port status structural representation.
Figure 11 is pipe box place, the gap structure for amplifying schematic diagram of Figure 10.
Figure 12 is the improved structure schematic diagram of Figure 11.
Figure 13 is embodiments of the invention five sectional structure schematic diagram, has done to confine in figure.
Figure 14 is the portion that the confines structure for amplifying schematic diagram of Figure 13.
Figure 15 is embodiments of the invention six sectional structure schematic diagram, and in figure, rub body eliminates catch.
Figure 16 is embodiments of the invention seven sectional structure schematic diagram, is provided with fixed block in figure between pedestal and rub body.
Figure 17 is dedusting sheet improved structure schematic diagram of the present invention, and in figure, dedusting sheet has set up stop tab.
Figure 18 is rub body sectional structure schematic diagram of the present invention, and in figure, dedusting sheet is provided with cut-out mouth.
Figure 19 is that rub body of the present invention arranges rub body face subsides sectional structure schematic diagram.
Figure 20 is that rub body of the present invention and rub body wall overlap and split sectional structure schematic diagram.
In figure, the name of sequence number is called: 1, pedestal, 101, groove, 2, rub body, 201, wipe face, 202, rub body matrix, 203, rub body wall cover, 3, magnetic part, 4, dedusting sheet, 5, stop tab, 6, gap pipe box, 7, mouth is cut off, 8, catch, 9, fixed block, 10, limited support part.
Detailed description of the invention
Now by reference to the accompanying drawings, the invention will be further described.
As shown in the figure, this blackboard eraser comprises:
Pedestal 1, the matrix of this blackboard eraser is hollow groove 101 in the middle part of it.
Rub body 2, the chalk writing on blackboard wiping, is arranged on the middle part of the groove of pedestal, and is fixed on the groove of pedestal, and rub body face is higher than the port surface of dedusting sheet, and rub body adopts the materials such as sponge kind to make, and also can select according to actual needs.
Described rub body face to pedestal bottom between be provided with elastomer, be the elastic strength making the elastic strength of described rub body be greater than described dedusting sheet, between described rub body and base bottom, also can be provided with spring.Enter in described chamber for ease of dust, between described rub body 2 and dedusting sheet, the rub body surface of gap location has gradient.Described rub body wall also can be provided with gap pipe box 6, and described gas tube is arranged with and the breach that coordinates of dedusting sheet tip, dedusting sheet and rub body face end collide place to rub body wall gap pipe box between rub body surface be set to smooth.Described rub body is set to rub body matrix 201 and dismountable rub body face pastes 202, and described rub body is provided with rub body wall cover 203, with the closedown preventing the deformation of rub body from causing its gap.Meanwhile, the cleaning of the indeformable and chamber house dust of the normal use in order to rub body, also can arrange catch 8 between rub body and pedestal, be provided with more than one fixed block 9, limited support part 10 between pedestal and rub body.When described rub body is adsorbed on blackboard by pressing pedestal 1 or magnetic part 3, described rub body and described dedusting sheet touch blackboard simultaneously, the position in rub body face changes, and forms gap between dedusting sheet and rub body, and dust enters in chamber by the gap between rub body and dedusting sheet; When unclamping pedestal or pedestal takes off from blackboard, rub body ejects the port surface of dedusting sheet, and position, rub body face is restored, rub body is touched mutually with dedusting sheet, the external world that dedusting sheet seals up groove imports and exports, and the gap namely between rub body and dedusting sheet seals all the time, and dust is blocked in chamber all the time.Like this, dust just can not fly upward all the time everywhere, and makes blackboard wiping become more quick, effective.
Magnetic part 3, is arranged between rub body and pedestal, produces suction between itself and blackboard, and this blackboard eraser can be made to be adsorbed on blackboard under the effect not having external force, reduces to blackboard side institute applied pressure; Or the writing on blackboard when this blackboard eraser mobile, can be wiped by suction between design magnetic part and blackboard just.Like this, just more easily, rapidly letter written with chalk can be wiped.This blackboard eraser not used time, also can directly be adsorbed on blackboard, this blackboard eraser both can not be lost like this, also facilitated during wiping and found.
Dedusting sheet 4, prepared by employing flexible material, can Free Transform under external force, and dedusting sheet is bonded on the pedestal port periphery of groove notch, also can adopt the method be embedded and pedestal one-body molded, the associated methods of dedusting sheet and pedestal designs according to actual needs.Dedusting sheet adopts the design of similar windshield wiper blade formula sheet rubber, has rational flexibility or shape, and the ora terminalis place of dedusting sheet is comparatively thin, is convenient to be stored in chamber by dust while dust backstop is in chamber.Dedusting sheet in the present embodiment adopts wear-resisting elastomeric material preparation; Dedusting sheet, in conjunction with rub body, by by under the magneticaction of magnetic part or the effect of pressure, realizes opening wide with closed of chamber.Dedusting sheet also can be provided with stop tab 5 further, and stop tab stores dust to chamber and plays invigoration effect.Also cut-out mouth can be provided with between dedusting sheet and pedestal, after this blackboard eraser uses a period of time, when dust in chamber acquires a certain degree, only need first the dedusting sheet of this blackboard eraser and one end of rub body all inwardly to be compressed, again by the port of dedusting sheet to turning up, just the dust in its chamber can be cleaned out.
According to said structure feature and use feature, structure and the embodiment feature of Fig. 1 ~ Figure 20 are summarized as follows: embodiment one as shown in Figure 1 and Figure 2, is provided with rub body in pedestal, and rub body wall is provided with catch, or is provided with fixed block, for fixing rub body; Dedusting sheet is stressed to change, and seals or open the gap between rub body and dedusting sheet.Namely after rub body deformation resets in embodiment one as shown in Figure 3, the clearance seal between dedusting sheet and rub body.Meanwhile, in said structure, between rub body and dedusting sheet, the chamfering at the side face end angle, rub body end angle of gap location is hypotenuse chamfering, or as shown in Figure 4, the hypotenuse chamfering of embodiment one also can be the hypotenuse chamfering after inwardly shrinking displacement; As shown in Figure 5, the hypotenuse chamfering of embodiment one also can be set to arc angling.Embodiment two as shown in Figure 6, also can increase magnetic part between rub body to pedestal in embodiment one, makes wiping more convenient; And according to the architectural feature of above-described embodiment two, embodiment three as shown in Figure 7, in embodiment two, the position of pedestal place magnetic part, also can replace magnetic part by spring, and the bullet improving rub body further becomes ability.As shown in Figure 8, as the improvement of Fig. 7, between rub body and pedestal, also can set up limited support part, guarantee that rub body is when compressing, the port surface of rub body face and dedusting sheet touches blackboard simultaneously.
Embodiment four as shown in Figure 9, Figure 10, described rub body wall is provided with gap pipe box 6, and gas tube cover notch does not as shown in Figure 9 dock with dedusting sheet, and rub body is contracted in dedusting sheet; Figure 10 is then contrary.Above-mentioned gap pipe box is semicircular arc slot type structure as shown in figure 11, or rectangle slot type structure as shown in figure 12, and the end of dedusting sheet is stretched in the pipe box of gap.Meanwhile, as Figure 13, embodiment illustrated in fig. 14 five, the gap pipe box of embodiment four also can be arranged at hypotenuse chamfering place, and its principle, using method are identical with embodiment four.According to structure and the embodiment feature of above-mentioned Fig. 1 ~ Figure 14, embodiment six as shown in figure 15, also can omit described catch between rub body and pedestal, is provided with a fixed block.Embodiment seven as shown in figure 16, is provided with two fixed blocks, and described magnetic part also can be connected as a single entity with pedestal, is arranged at the position that fixed block on pedestal is corresponding.As shown in figure 17, described dedusting sheet also can arrange stop tab, prevents dust from falling back to the port of dedusting sheet, and improve dust removing effects, dedusting sheet is connected by a few place Zhi Zhudian with between stop tab.As shown in figure 18, described dedusting sheet is provided with cut-out mouth, thus is convenient to by cutting off mouth, the dust in cleaning chamber.As shown in figure 19, detachable between the wiping face 201 of rub body and rub body in above-described embodiment, namely the wiping face 201 of rub body also can arrange rub body face and pastes, rub body face is pasted and is bonded with rub body matrix 202, thus avoid the waste of rub body, be convenient to reusing of rub body, improve the service life of rub body.As shown in figure 20, rub body wall cover 203 is set up at the external diameter upper part rub body of rub body, thus when guaranteeing the smooth of its rub body wall and blackboard wiping further, when rub body is subject to the pressure of different size, its gap exists all the time, and guarantees to realize above-mentioned technical purpose and technique effect.
Technological means of the present invention, and unrestricted technical scope of the present invention, those skilled in the art do apparent improvement in conjunction with existing common practise to the present invention, as being provided with wet type rub body or setting up the structure of the existing similar blackboard erasers such as electrostatic in the structure of this blackboard eraser, all fall within technical scope of the present invention.
Claims (9)
1. a dust-removing blackboard eraser, this blackboard eraser comprises rub body (2) and pedestal (1), and described pedestal is provided with groove (101), and rub body is arranged in a groove, forms the chamber storing dust between described rub body and described pedestal; It is characterized in that described pedestal (1) port periphery is provided with the inside dedusting sheet (4) of port, rub body (2) face is higher than the port surface of dedusting sheet; Described rub body (2) wall is provided with gap pipe box (6), described gas tube is arranged with and the breach that coordinates of dedusting sheet (4) tip, dedusting sheet and rub body face end collide place to rub body wall gap pipe box between rub body surface be set to smooth.
2. a dust-removing blackboard eraser, this blackboard eraser comprises rub body (2) and pedestal (1), and described pedestal is provided with groove (101), and rub body is arranged in a groove, forms the chamber storing dust between described rub body and described pedestal; It is characterized in that described blackboard eraser is provided with magnetic part (3), pedestal (1) port periphery is provided with the inside dedusting sheet (4) of port, and rub body (2) face is higher than the port surface of dedusting sheet; Described rub body (2) wall is provided with gap pipe box (6), described gas tube is arranged with and the breach that coordinates of dedusting sheet (4) tip, dedusting sheet and rub body face end collide place to rub body wall gap pipe box between rub body surface be set to smooth.
3. dust-removing blackboard eraser according to claim 2, it is characterized in that described magnetic part (3) is fixed on described pedestal (1), or be arranged between described rub body (2) and described pedestal, or be embedded in described rub body, or described dedusting sheet is magnetic.
4. dust-removing blackboard eraser according to claim 1 and 2, it is characterized in that described rub body (2) is arranged on the middle part of described pedestal (1), described chamber is looped around around described rub body; Described rub body face to pedestal bottom between be provided with elastomer.
5. dust-removing blackboard eraser according to claim 1 and 2, is characterized in that described rub body (2) wall is provided with the rub body surface of gradient; The gradient on described rub body surface is set to the gradient of terrace with edge side, or the gradient on described rub body surface designs for radian.
6. dust-removing blackboard eraser according to claim 1 and 2, it is characterized in that described dedusting sheet (4) is for windshield wiper blade formula sheet rubber, described dedusting sheet is the part of chamber; Be provided with the stop tab (5) preventing dust from falling after rise in described chamber, described stop tab is connected with dedusting sheet.
7. dust-removing blackboard eraser according to claim 1 and 2, is characterized in that being provided with between described dedusting sheet (4) and pedestal (1) cutting off mouth (7); Detachable between described rub body and described pedestal, detachable between the wiping face (201) of described rub body and rub body matrix (202), described rub body is provided with rub body wall cover (203).
8. dust-removing blackboard eraser according to claim 1 and 2, it is characterized in that described pedestal (1) is provided with the catch (8) of rub body (2), or between pedestal and rub body, be provided with more than one fixed block (9), limited support part (10); Described base perimeter is set to round and smooth, or is provided with finger striped, or the design in semielliptical shape.
9. the using method of dust-removing blackboard eraser according to claim 1 and 2, it is characterized in that described blackboard eraser is provided with magnetic part (3), described rub body (2) is adsorbed on blackboard respectively by pressing pedestal (1) or magnetic part (3), namely when blackboard wiping, described rub body and described dedusting sheet (4) touch blackboard simultaneously, the position in rub body face changes, and the port surface of rub body face and dedusting sheet is with high; Now, form gap between dedusting sheet and rub body, chamber opens wide, and dust enters in chamber by the gap between rub body and dedusting sheet; When unclamping pedestal or pedestal takes off from blackboard, after namely taking off this blackboard eraser, rub body ejects the port surface of dedusting sheet, position, rub body face is restored, and rub body is touched mutually with dedusting sheet, the space closure formed between rub body and dedusting sheet, chamber closes, and dust is stored in chamber;
Simultaneously, at above-mentioned pedestal or the pedestal of unclamping from before blackboard takes off, namely before taking off this blackboard eraser, first dedusting sheet is pressed toward rub body place, inner side, dedusting sheet still on blackboard is touched mutually, the gap-closing between dedusting sheet and rub body with rub body, chamber from open wide become closed, after the dust backstop of gap location also sealing in the chamber, then pedestal is taken off from blackboard; When rub body wall is provided with gap pipe box (6) coordinated with dedusting sheet tip, after taking off pedestal, its dedusting sheet is pressed toward inner side, the dust on dedusting sheet is entered in the pipe box of gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401232.3A CN103465698B (en) | 2013-08-28 | 2013-09-05 | Dust-removing blackboard eraser and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310382851 | 2013-08-28 | ||
| CN201310382851.2 | 2013-08-28 | ||
| CN201310401232.3A CN103465698B (en) | 2013-08-28 | 2013-09-05 | Dust-removing blackboard eraser and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103465698A CN103465698A (en) | 2013-12-25 |
| CN103465698B true CN103465698B (en) | 2015-11-18 |
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| CN201310401232.3A Expired - Fee Related CN103465698B (en) | 2013-08-28 | 2013-09-05 | Dust-removing blackboard eraser and using method thereof |
| CN201320551787.1U Withdrawn - After Issue CN203472367U (en) | 2013-08-28 | 2013-09-05 | Dedusting blackboard eraser |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320551787.1U Withdrawn - After Issue CN203472367U (en) | 2013-08-28 | 2013-09-05 | Dedusting blackboard eraser |
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| CN (2) | CN103465698B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465698B (en) * | 2013-08-28 | 2015-11-18 | 陈浩 | Dust-removing blackboard eraser and using method thereof |
| CN103895427B (en) * | 2014-02-25 | 2016-06-29 | 陈浩 | Simple and easy dust-removing blackboard eraser and using method thereof |
| CN107415542A (en) * | 2016-06-26 | 2017-12-01 | 钱煜琴 | A kind of Novel chalk eraser |
| CN108973459A (en) * | 2018-07-23 | 2018-12-11 | 唐佳怡 | Multifunctional blackboard for education cleaner |
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- 2013-09-05 CN CN201310401232.3A patent/CN103465698B/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN203472367U (en) | 2014-03-12 |
| CN103465698A (en) | 2013-12-25 |
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