CN105270062B - A kind of blackboard eraser with dust-proof effect - Google Patents
A kind of blackboard eraser with dust-proof effect Download PDFInfo
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- CN105270062B CN105270062B CN201510890321.8A CN201510890321A CN105270062B CN 105270062 B CN105270062 B CN 105270062B CN 201510890321 A CN201510890321 A CN 201510890321A CN 105270062 B CN105270062 B CN 105270062B
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- block
- interval trough
- siphunculus
- back cover
- shaggy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
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- Drawing Aids And Blackboards (AREA)
Abstract
The present invention relates to the blackboard eraser of a kind of dust-proof environmental protection, including sawtooth block, shaggy block, flat blocks, unilateral component interval trough, bilateral branch interval trough, oblique siphunculus, dust collection, hand-held back cover, Velcro loop surface；Described sawtooth block, described shaggy block and described flat blocks are that one connects in the side near hand-held back cover, and fixing with described hand-held back cover be connected, Velcro loop surface is gluing with the lower surface outside hand-held back cover to be connected, described flat blocks is positioned on the axis of hand-held back cover, described shaggy block has two pieces to lay respectively at described flat blocks both sides, described sawtooth block has two pieces, the sawtooth block on the left side is positioned at the left side that the shaggy block on the left side is positioned at, the sawtooth block on the right is positioned at the right that the shaggy block on the right is positioned at, described unilateral component interval trough has two, between described flat blocks and described shaggy block, described bilateral branch interval trough has two, between described shaggy block and sawtooth block.
Description
The application is filing date on October 30th, 2014, Application No. 2014105975046, invention name
It is referred to as the divisional application of the patent of " blackboard eraser of a kind of dust-proof efficient ".
Technical field
The present invention relates to a kind of blackboard eraser, a kind of blackboard eraser with dust-proof effect.
Background technology
Blackboard eraser is the indispensable instrument in classroom, classroom, and during the person's handwriting of blackboard eraser erasing chalk, can produce big
The chalk dust of amount, chalk dust causes the biggest harm for the health of Faculty and Students.On the other hand, due to
The rigidity of blackboard raw material itself is strong and the reason of blackboard processing technology, and blackboard surface is not to put down very much
Whole, looking over blackboard surface from the side of blackboard has a little fluctuating.Common blackboard eraser surface is smooth,
So user can apply the active force of vertical blackboard to blackboard eraser, can be evenly distributed to the surface of blackboard eraser, and
Blackboard surface is not the most smooth, and this part that blackboard can be made to protrude can be wiped the cleanest, and recessed
The part gone then is wiped less than or wipes the cleanest, generally during erasing, needs the most several all over erasing
Can wipe totally, the efficiency comparison of erasing is low.All this is the weak point existing for prior art.
Summary of the invention
For defect present in prior art, a kind of blackboard eraser with dust-proof effect of the present invention is taked
Technical scheme is: include sawtooth block, shaggy block, flat blocks, unilateral component interval trough, bilateral branch interval trough,
Tiltedly siphunculus, dust collection, hand-held back cover, matte VELCRO.
The present invention it may also is that: described sawtooth block, described shaggy block and described flat blocks are close
The side of hand-held back cover is that one connects, and fixing with described hand-held back cover is connected, and Velcro loop surface has two pieces,
One of back side is gluing with the lower surface outside hand-held back cover to be connected, and described flat blocks is positioned at hand-held back cover
On axis, described shaggy block has two pieces to lay respectively at described flat blocks both sides, and described sawtooth block has two pieces, and
And horizontal symmetry, the sawtooth block on the left side is positioned at the left side of the shaggy block on the left side, and the sawtooth block on the right is positioned at the right
The right of shaggy block, described unilateral component interval trough has two, is positioned at described flat blocks and described shaggy block it
Between, described bilateral branch interval trough has two, between described shaggy block and sawtooth block.
The present invention it may also is that: sawtooth block includes chisel teeth, upper unfilled corner, lower unfilled corner, jacking block,
Breach, sole piece；Described chisel teeth, sole piece and jacking block are that one connects in the side near hand-held back cover, wedge
Shape tooth and breach alternately connect, and described upper unfilled corner is positioned at described chisel teeth near the one of described bilateral branch interval trough
Above side, described lower unfilled corner is positioned under the side of close described bilateral branch interval trough of described chisel teeth
Face.
The present invention it may also is that: tiltedly siphunculus includes that unilateral component is spaced oblique siphunculus, between bilateral branch
Every oblique siphunculus；Described unilateral component is spaced oblique siphunculus and is positioned at the end of unilateral component interval trough, described bilateral branch
It is spaced oblique siphunculus and is positioned at the end of bilateral branch interval trough.
The present invention it may also is that: described dust collection includes angle siphunculus, wave matrix sponge；
Catcher shell, Velcro loop surface, Velcro hook side, bottom, edge protuberance；Described catcher shell interior
Portion is provided with angle siphunculus and wave matrix sponge, and described angle siphunculus top connects described unilateral component interval tiltedly
Siphunculus and described bilateral branch are spaced the end of oblique siphunculus, and described in another block, the back side of Velcro loop surface is recessed with wave
The bottom surface of type sponge is fixing to be connected, and Velcro hook side has two pieces, the back side of one piece of Velcro hook side and described dust
The gluing connection of upper surface outside catcher, the back side of another block Velcro hook side is fixing with bottom to be connected, described
Edge protuberance is positioned at the inner side surrounding of described catcher shell connection in conjunction.
And: described shaggy block includes projection, concave block；Described projection and described concave block are crossed-over
Together, described shaggy block is that one connects in the side near hand-held back cover.
The present invention it may also is that: described unilateral component interval trough width is 4mm 6mm, the degree of depth
For 4mm 8mm；Described bilateral branch interval trough width is 6mm 8mm, and the degree of depth is 4mm 8mm,
And the width ratio unilateral component interval trough of bilateral branch interval trough want big 2mm 3mm, bilateral branch interval trough
The degree of depth identical with unilateral component interval trough.
The present invention it may also is that: the upper surface of described wave matrix sponge is concave surface, and concave surface is
Lower and highest point drop are 25mm 30mm, and the shape that surface is rough wave.
The present invention it may also is that: described edge protuberance is positioned at from described catcher shell inside bottom
Distance identical with the thickness of Velcro hook side, and protrude a length of 3.3mm inside described catcher shell
—5mm。
The present invention it may also is that: the width of described breach is 2mm-2.5mm, described breach deep
Degree is identical with the degree of depth of bilateral branch interval trough.
The present invention it may also is that: described projection is trapezoidal, and the width of upper end face is more than lower end even
Connect the width of the coupling part of described shaggy block.
The present invention it may also is that: described concave block is trapezoidal, and the width of upper end open is less than lower end even
Connect the width of the coupling part of described shaggy block.
The present invention it may also is that: the position of the upper side opening of described concave block and the position of described breach
The most in the same horizontal line, and in the interlaced setting of vertical direction.
The present invention it may also is that: described hand-held back cover is that polythene material is made, described hand-held after
The length and width of the opening surface of shell are all higher than the length and width 20mm 35mm of upper surface.
The present invention it may also is that: described angle siphunculus a length of 20mm 28mm, and the mouth of pipe is for inclining
Inclined-plane.
The present invention it may also is that: the inner side of described oblique siphunculus is wrapped in one layer of smooth gum elastic
Material.
The present invention it may also is that: described unilateral component interval trough and described bilateral branch interval trough
Lower surface has one layer of smooth elastic rubber material.
The present invention it may also is that: the ramp of described chisel teeth and the angle of vertical are α, α
Be 120 °--150 °, the lower inclined plane of described chisel teeth and the angle of vertical be β, β be 30 °--45 °.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the integrally-built schematic diagram in side of the present invention.
Fig. 3 is the schematic diagram of the sawtooth block of the present invention.
Fig. 4 is the side structure schematic diagram of the shaggy block of the present invention.
Fig. 5 is the top view of the shaggy block of the present invention.
Fig. 6 is the Facad structure schematic diagram of the catcher of the present invention.
Fig. 7 is the side structure schematic diagram of the catcher of the present invention.
Fig. 8 is the structural representation of the chisel teeth of the present invention.
Seeing Fig. 1-7,1 is sawtooth block, and 2 is shaggy block, and 3 is flat blocks, and 4 is unilateral component interval trough,
5 is bilateral branch interval trough, and 6 is oblique siphunculus, and 7 is dust collection, and 8 is hand-held back cover, and 9 is VELCRO
Matte, 1.1 is chisel teeth, and 1.2 is upper unfilled corner, and 1.3 is lower unfilled corner, and 1.4 is jacking block, and 1.5 is breach, 1.6
For sole piece, 2.1 is projection, and 2.2 is concave block；6.1 are spaced oblique siphunculus for unilateral component, and 6.2 is between bilateral branch
Every oblique siphunculus, 7.1 is angle siphunculus, and 7.2 is wave matrix sponge, and 7.3 is catcher shell, and 7.4 is evil spirit
Art patch hook side, 7.5 is bottom, and 7.6 is edge protuberance.
Detailed description of the invention
Seeing Fig. 1-7, the present invention is a kind of blackboard eraser with dust-proof effect, including sawtooth block 1, concavo-convex
Block 2, flat blocks 3, unilateral component interval trough 4, bilateral branch interval trough 5, oblique siphunculus 6, dust collection
7, hand-held back cover 8, Velcro loop surface 9, chisel teeth 1.1, upper unfilled corner 1.2, lower unfilled corner 1.3, jacking block 1.4,
Breach 1.5, sole piece 1.6, projection 2.1, concave block 2.2；Unilateral component is spaced oblique siphunculus 6.1, between bilateral branch
Every oblique siphunculus 6.2, angle siphunculus 7.1, wave matrix sponge 7.2, catcher shell 7.3, Velcro hook side
7.4, bottom 7.5, edge protuberance 7.6.
See Fig. 1-2, described sawtooth block 1, described shaggy block 2 and described flat blocks 3 after hand-held
The side of shell 8 is that one connects, and fixing with described hand-held back cover 8 is connected.Wherein sawtooth block 1 plays shunting
The effect of chalk dust, shaggy block 2 plays the effect of the efficiency strengthening erasing chalk word, and flat blocks 3 plays finally
The part that sawtooth block 1 above and shaggy block 2 leak wiping is wiped one time again.Again because directly contacting with letter written with chalk
Blackboard eraser only away from the plane of side of hand-held back cover 8, so the design of the present invention all concentrates on blackboard eraser
Can directly contact the side of letter written with chalk, and other side is i.e. near the side of hand-held back cover 8, is that one connects.
This globality being conducive to improving blackboard eraser.The blackboard eraser that globality is strong, it is not necessary to worry that blackboard eraser uses the time
After having grown, too much parts can fall apart, in terms of another for be equivalent to extend blackboard eraser life-span.
The concrete effect of sawtooth block 1 and shaggy block 2 can describe in detail in narration below.
So sawtooth block 1, the position of shaggy block 2 and flat blocks 3 is positioned at hand-held back cover in described flat blocks 3
On the axis of 8, described shaggy block 2 has two pieces to lay respectively at described flat blocks 3 both sides, described sawtooth block 1
Having two pieces, and horizontal symmetry, the sawtooth block 1 on the left side is positioned at the left side that the shaggy block 2 on the left side is positioned at, the right
Sawtooth block 1 be positioned at the right that is positioned at of shaggy block 2 on the right.Those skilled in the art is it is to be understood that people
The when of using blackboard eraser, ordinary practice is all that blackboard eraser is brandished in left and right, so touch letter written with chalk at first should
Being sawtooth block 1, followed by shaggy block 2, is finally flat blocks 3.
Described unilateral component interval trough 4 has two, is positioned at described flat blocks 3 and described shaggy block 2 it
Between, described bilateral branch interval trough 5 has two, between described shaggy block 2 and sawtooth block 1.Because saw
Tooth block 1 is positioned at the edge of blackboard eraser, is the place gathered in a large number of chalk dust, and major part just can be wiped by sawtooth block 1
The chalk dust produced except letter written with chalk is diverted in bilateral branch interval trough 5, and shaggy block 2 plays enhancing erasing chalk
The effect of the efficiency of word, it is possible to reduce the pass of blackboard eraser erasing chalk word, the chalk dust that shaggy block 2 produces is also
Can slip into unilateral component interval trough 4 in concave block 2.2.Last flat blocks (3) plays finally by above
The part that sawtooth block 1 and shaggy block 2 leakage are wiped wipes one time again.
Seeing Fig. 3, sawtooth block 1 includes chisel teeth 1.1, upper unfilled corner 1.2, lower unfilled corner 1.3, jacking block 1.4,
Breach 1.5, sole piece 1.6；Described chisel teeth 1.1, sole piece 1.6 and jacking block 1.4 are near the one of hand-held back cover 8
Side is that one connects, and chisel teeth 1.1 and breach 1.5 alternately connect, and described upper unfilled corner 1.2 is positioned at described wedge
Shape tooth 1.1 is above the side of described bilateral branch interval trough 5, and described lower unfilled corner 1.3 is positioned at described wedge
Below the side of the close described bilateral branch interval trough 5 of shape tooth 1.1；
Those skilled in the art it is to be understood that when with common blackboard eraser erasing chalk word, due to blackboard eraser with
Blackboard directly contacts, and does not has too much space to conceal chalk dust, so major part chalk dust is in blackboard eraser
Edge, the when of brandishing blackboard eraser along with user, can produce certain moving air, these moving air meetings
The every nook and cranny to classroom is flown away, in the respiratory tract being then drawn onto by teachers and students with the chalk dust at edge.And this
Bright so that blackboard eraser edge chalk dust can along the supreme unfilled corner of inclined plane landing 1.2 of chisel teeth 1.1,
Slide into again in bilateral branch interval trough 5.The inclined plane being not only because chisel teeth 1.1 is downward inclined plane,
And user is when erasing the board, the chalk dust to the edge of blackboard eraser has an outside thrust in fact, and black
The chalk dust at the edge of blackboard eraser will necessarily produce an active force in opposite direction, and this active force to blackboard eraser
Chalk dust can be promoted along the supreme unfilled corner of inclined plane landing 1.2 of chisel teeth 1.1, then slide between bilateral branch
In separate slot 5.
The design of upper unfilled corner 1.2 and lower unfilled corner 1.3 is for the width of enlargement indentation 1.5, and then prevents powder
Pen ash blocking breach 1.5.
Seeing Fig. 8, through contrast test repeatedly, result shows when the ramp of described chisel teeth 1.1 is with vertical
The angle faced directly be α, α be 120 °--150 °, the lower inclined plane of described chisel teeth 1.1 and the angle of vertical
It is 30 ° for β, β--45 °.So design can either make the chalk dust produced can slide along slope,
Slide in bilateral branch interval trough 5, enable to again chisel teeth 1.1 Area comparison big, and chisel teeth 1.1 is
Directly contact with blackboard.Those skilled in the art is it is to be understood that of erasing effect of blackboard eraser is important
Factor is exactly the area contacted with blackboard, and area is the biggest, and erasing effect is the best.
Seeing Fig. 4-5, described shaggy block 2 includes projection 2.1, concave block 2.2；Described shaggy block 2 is close
The side of hand-held back cover 8 is that one connects, and those skilled in the art is it is to be understood that blackboard is while it seem that be
One piece of surface plate, but owing to the rigidity of blackboard raw material itself is not strong and blackboard processing technology, black
Plate surface is not the most smooth, and looking over blackboard surface from the side of blackboard has a little fluctuating.
Together with described projection 2.1 is crossed-over with described concave block 2.2.Due to each projection 2.1
Separate by concave block 2.2, there is relative independentability, projection 2.1 surface is directly to contact blackboard, is wiping
The when of blackboard, user can apply the active force of vertical blackboard to blackboard eraser, adds upper protruding block 2.1 vertical direction
There is relatively independent retractility so that it is not the most smooth blackboard surface that projection 2.1 surface can be fully contacted.Phase
Instead, if the surface of blackboard eraser is smooth, then user can apply the active force of vertical blackboard to blackboard eraser,
The surface of blackboard eraser can be evenly distributed to, and blackboard surface is not the most smooth, so make blackboard eraser with black
The direct contact surface of plate is long-pending to be reduced, and this part that blackboard can be made to protrude can be wiped the cleanest, and dented
Part then wipe less than or wipe the cleanest, generally erasing during, needs the most several all over wipe ability
Wipe totally, and the design of projection 2.1 and concave block 2.2 be equivalent to add elasticity and the flexibility on blackboard eraser surface,
Improve the direct contact surface of blackboard eraser and blackboard amasss, the most also improve efficiency of erasing and make originally to need back and forth
Several all over the chalk that could wipe, the most only need just can more thoroughly must wipe clean by ratio for one time.
Concave block 2.2 can also play the effect of drain chalk dust so that chalk dust slides into list by concave block 2.2
In side branch interval trough 4.
Breach 1.5 is the entrance that chalk dust slips into bilateral branch interval trough 5, meanwhile, the position of breach 1.5
Also it is the blind spot of blackboard eraser erasing.In like manner, the position of the upper side opening of concave block 2.2 is that chalk dust slips into unilateral point
Propping up interval trough 4, meanwhile, the position of concave block (2.2) is also the blind spot of blackboard eraser erasing, so described concave block
The position of the position of the upper side opening of 2.2 and described breach 1.5 the most in the same horizontal line, and in vertical direction
Interlaced setting.Can be staggered in the place of both blind spots by so design, the erasing blind spot of breach 1.5,
Projection 2.1 can be wiped, the erasing blind spot of concave block 2.2, and chisel teeth 1.1 can be wiped.Omit if also had
Place, last flat blocks 3 can be wiped.
Seeing Fig. 4-5, described projection 2.1 is trapezoidal, and the width of upper end face connects described recessed more than lower end
The width of the coupling part of projection 2.Described concave block 2.2 is trapezoidal, and the width of upper end open connects less than lower end
The width of the coupling part of described shaggy block 2.So design is so that the effectively erasing part of blackboard eraser is
The area that projection 2.1 contacts with blackboard is the biggest.
Unilateral component interval trough 4, described bilateral branch interval trough 5 will not directly contact blackboard with oblique siphunculus 6,
So the inner side of described oblique siphunculus 6 is wrapped in one layer of smooth elastic rubber material.Described unilateral component interval trough
4 and the lower surface of described bilateral branch interval trough 5 have one layer of smooth elastic rubber material.The most both will not
Affect efficiency of erasing again so that unilateral component interval trough 4, described bilateral branch interval trough 5 and oblique siphunculus 6
Inner surface is smooth so that chalk dust can flow in angle siphunculus 7.1 rapidly, prevents chalk dust blocking one side point
Prop up interval trough 4, bilateral branch interval trough 5 and oblique siphunculus 6, affect the implementation result of blackboard eraser.Additionally elastic
The material of elastomeric material and blackboard eraser has identical characteristic, i.e. has certain flexibility and deformability.
Because described unilateral component is spaced oblique siphunculus 6.1 and is positioned at the end of unilateral component interval trough 4, described
Bilateral branch is spaced oblique siphunculus 6.2 and is positioned at the end of bilateral branch interval trough 5；Described angle siphunculus 7.1 top
Connect described unilateral component and be spaced oblique siphunculus 6.1 and the end of the described bilateral branch oblique siphunculus 6.2 in interval.So,
It is the most logical that chalk dust in unilateral component interval trough 4 and bilateral branch interval trough 5 slips into unilateral component interval along groove
Pipe 6.1 and bilateral branch are spaced oblique siphunculus 6.2, are then slid into angle siphunculus 7.1, finally slip into wave matrix sea
Above continuous 7.2.
Described unilateral component interval trough 4 width is 4mm 6mm, and the degree of depth is 4mm 8mm；Described double
Side branch interval trough 5 width is 6mm 8mm, and the degree of depth is 4mm 8mm, and bilateral branch interval trough 5
Width ratio unilateral component interval trough 4 want big 2mm 3mm, the degree of depth of bilateral branch interval trough 5 is with unilateral
Branch's interval trough 4 is identical.So effect of design is bilateral branch interval trough 5 owing to bilateral has bifurcations,
Unilateral component interval trough 4 only side has bifurcations, chalk dust to slip into the amount of bilateral branch interval trough 5 than list
Side branch interval trough more than 4 by about one time, so the width ratio unilateral component interval trough 4 of bilateral branch interval trough 5
Want big.Thus it is not easy occur that chalk dust too much blocks conduit, and affects the implementation result of the present invention.Warp
Cross multiple comparison test, show that the width of bilateral branch interval trough 5 and the degree of depth are all than unilateral component interval trough 4
The effect of big 1mm 2mm is optimum, and width is excessive, then blackboard eraser can diminish with the contact area of blackboard, from
And affect erasing effect.The degree of depth of bilateral branch interval trough 5 and unilateral component interval trough 4 is 4mm 8mm
For preferably, the degree of depth crosses conference affects the globality of blackboard eraser.
See Fig. 2, because, the upper table outside the back side of Velcro hook side 7.4 and described dust collection 7
The gluing connection in face, Velcro loop surface 9 has two pieces, the lower surface outside one of back side and hand-held back cover 8
Gluing connection, so, matte VELCRO 9 and Velcro hook side 7.4 so that dust collection 7 arbitrarily from
Disassemble in lower surface outside the hand-held back cover 8 of blackboard eraser, within convenient removing dust collection 7
Chalk dust.
Seeing Fig. 6-7, wave matrix sponge 7.2 is to absorb chalk dust, so so that graininess
The chalk dust of state can obtain certain solidification.It is to be understood that the effect of solidification, it is first of all clear that the chalk of graininess
Which the shortcoming of ash has？First, granular chalk dust is easy to the seam of the opening part by dust collection 7
Gap is flown away in the air, thus increases dust pollution.Second, owing to having collected substantial amounts of powder in dust collection 7
Pen ash, clearing up the chalk dust in dust collection 7 when, the personnel of cleaning are easy to suck granular
Chalk dust, causes the biggest harm to the health of the personnel of cleaning.And solidify and can solve these defects well.
Seeing Fig. 6-7, the upper surface of described wave matrix sponge 7.2 is concave surface, the lowest part of concave surface with
Eminence drop is 25mm 30mm, and the shape that surface is rough wave.Concave surface is than the table of plane
Area wants big, and the surface of the shape adding rough wave more can increase surface area.Increase wave matrix
The purpose of sponge 7.2 surface area is the ability of the chalk dust in order to increase absorption, and those skilled in the art should
Knowing, the ability of the chalk dust of the wave matrix sponge 7.2 the biggest absorption of surface area is the biggest.
See Fig. 6-7, the back side of Velcro loop surface 9 described in another block and the bottom surface of wave matrix sponge 7.2
Fixing connection, the back side of Velcro hook side 7.4 is fixing with bottom 7.5 to be connected.So design makes bottom 7.5
The Velcro loop surface 9 of Velcro hook side 7.4 and the bottom surface of wave matrix sponge 7.2 can be inter-adhesive, also
Can separate at any time.Such bottom 7.5 that can open at any time can limit chalk dust in dust collection 7,
The chalk dust in dust collection 7 can be cleared up again at any time.It addition, the position of bottom 7.5 is in wave matrix sea
The bottom of continuous 7.2, and chalk dust is concentrated mainly on the upper surface of wave matrix sponge 7.2, so clears up dust
The personnel of catcher 7 have only to be affectedly bashful the bottom of wave matrix sponge 7.2 and take out wave matrix sponge 7.2,
The region mainly concentrated due to the chalk dust of the distance from bottom upper surface of wave matrix sponge 7.2 is farthest, from this
Wave matrix sponge 7.2 is taken out at position, it is possible to reduce during taking out wave matrix sponge 7.2, dust
Spread aerial degree, thus alleviate the infringement of the personnel health to cleaning dust collection 7.
See Fig. 6-7, described edge protuberance 7.6 be positioned at described catcher shell 7.3 inner side surrounding and with
One connect, and protrude a length of 3.3mm 5mm inside described catcher shell 7.3.So design
Wave matrix sponge 7.2 can be made to be stuck in inside dust collection 7 because of edge protuberance 7.6, will not fall
Out.
Described edge protuberance 7.6 is positioned at the distance from described catcher shell 7.3 inside bottom and VELCRO hook
The thickness in face 7.4 is identical, and so design can make lower surface and the Velcro hook side 7.4 of edge protuberance 7.6
Upper surface at grade, the Velcro loop surface of Velcro hook side 7.4 and the bottom surface of wave matrix sponge 7.2
9 paste, and bottom 7.5 also can so can reduce outside bottom 7.5 and catcher with horizontal plane at grade
The gap of shell 7.3, prevents chalk dust from leaking.
The present invention, as the using method of other ordinary blackboard erasers, is the most just not illustrated, and simply needs
Illustrating, the optimal using effect of the present invention is left and right when erase the board back and forth, if blacked the most back and forth
During plate, also can there is certain dust-proof effect, be in the sawtooth block 1 of top, shaggy block 2, invention effect can be realized
Really, the possibility of the breach 1.5 of following sawtooth block 1 existence leakage chalk dust.
The last method illustratively removing dust collection 7:
1st step, gets off dust collection 7 removal from blackboard eraser.
2nd step, opens bottom 7.5, takes out wave matrix sponge 7.2.
3rd step, cleans wave matrix sponge 7.2, owing to the material of wave matrix sponge 7.2 itself is sea
Silk floss, so being also easier to cleaning, it is only necessary to is rinsed by wave matrix sponge 7.2 clear water, repeatedly extrudes sponge,
Just can be by the chalk dust wash clean in wave matrix sponge 7.2, and chalk dust will not fly away aloft, pollutes
Air.
4th step, after washing, squeezes out the moisture in wave matrix sponge 7.2, it is possible to by wave matrix sea
Continuous 7.2 put into dust collection 7, and sponge has the strongest contraction distortion ability, receive so being very easily put into dust
Storage 7.
5th step, then the evil spirit by the Velcro hook side 7.4 of bottom 7.5 with the bottom surface of wave matrix sponge 7.2
Art patch matte 9 can be inter-adhesive.
6th step, outside the Velcro loop surface 9 of the bottom outside hand-held back cover 8 is with described dust collection 7
The Velcro hook side 7.4 of side is inter-adhesive, will couple together with blackboard eraser by dust collection 7.
Claims (1)
1. a blackboard eraser with dust-proof effect, it is characterised in that: include sawtooth block (1), shaggy block (2),
Flat blocks (3), unilateral component interval trough (4), bilateral branch interval trough (5), oblique siphunculus (6), dust is received
Storage (7), hand-held back cover (8), Velcro loop surface (9)；
And: described sawtooth block (1), described shaggy block (2) and described flat blocks (3) are near hand-held back cover (8)
Side be that one connects, and fixing with described hand-held back cover (8) be connected, Velcro loop surface (9) has two pieces,
One of back side is gluing with the lower surface in hand-held back cover (8) outside to be connected, and described flat blocks (3) is positioned at
On the axis of hand-held back cover (8), described shaggy block (2) has two pieces to lay respectively at described flat blocks (3)
Both sides, described sawtooth block (1) has two pieces, and horizontal symmetry, and the sawtooth block (1) on the left side is positioned at the left side
The left side of shaggy block (2), the sawtooth block (1) on the right is positioned at the right of the shaggy block (2) on the right, described
Unilateral component interval trough (4) has two, is positioned between described flat blocks (3) and described shaggy block (2),
Described bilateral branch interval trough (5) has two, is positioned between described shaggy block (2) and sawtooth block (1)；
And: sawtooth block (1) includes chisel teeth (1.1), upper unfilled corner (1.2), lower unfilled corner (1.3), jacking block (1.4),
Breach (1.5), sole piece (1.6)；Described chisel teeth (1.1), sole piece (1.6) and jacking block (1.4) are close
The side of hand-held back cover (8) is that one connects, and chisel teeth (1.1) and breach (1.5) alternately connect, institute
State unfilled corner (1.2) and be positioned at described chisel teeth (1.1) near the side of described bilateral branch interval trough (5)
Above, described lower unfilled corner (1.3) is positioned at close described bilateral branch interval trough (5) of described chisel teeth (1.1)
Side below；
And: tiltedly siphunculus (6) includes that unilateral component is spaced oblique siphunculus (6.1), and bilateral branch is spaced oblique siphunculus (6.2)；
Described unilateral component is spaced oblique siphunculus (6.1) and is positioned at the end of unilateral component interval trough (4), described bilateral separate
Prop up the oblique siphunculus in interval (6.2) and be positioned at the end of bilateral branch interval trough (5)；
And: described dust collection (7) includes angle siphunculus (7.1), and wave matrix sponge (7.2), outside catcher
Shell (7.3), Velcro hook side (7.4), bottom (7.5), edge protuberance (7.6)；Described catcher shell (7.3)
Inside be provided with angle siphunculus (7.1) and wave matrix sponge (7.2), described angle siphunculus (7.1) is pushed up
End connects described unilateral component and is spaced oblique siphunculus (6.1) and the end of the described bilateral branch oblique siphunculus in interval (6.2)
Holding, the back side of Velcro loop surface (9) described in another block is fixing with the bottom surface of wave matrix sponge (7.2) to be connected,
Velcro hook side (7.4) has two pieces, the back side of one piece of Velcro hook side (7.4) and described dust collection (7)
The gluing connection of upper surface in outside, the back side of another block Velcro hook side (7.4) is fixing with bottom (7.5) even
Connecing, described edge protuberance (7.6) is positioned at the inner side surrounding of described catcher shell (7.3) company in conjunction
Connect；Described edge protuberance (7.6) is positioned at the distance from described catcher shell (7.3) inside bottom and magic
The thickness of patch hook side (7.4) is identical, and protrudes a length of of described catcher shell (7.3) inner side
3.3mm—5mm；Described angle siphunculus (7.1) a length of 20mm 28mm, and the mouth of pipe is inclined plane；
And: described shaggy block (2) includes projection (2.1), concave block (2.2)；Described projection (2.1) and described recessed
Block (2.2) is crossed-over together, and described shaggy block (2) is in the side near hand-held back cover (8)
It is that one connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510890321.8A CN105270062B (en) | 2014-10-30 | 2014-10-30 | A kind of blackboard eraser with dust-proof effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410597504.6A CN104260584B (en) | 2014-10-30 | 2014-10-30 | A kind of blackboard eraser of dust-proof efficient |
| CN201510890321.8A CN105270062B (en) | 2014-10-30 | 2014-10-30 | A kind of blackboard eraser with dust-proof effect |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410597504.6A Division CN104260584B (en) | 2014-10-30 | 2014-10-30 | A kind of blackboard eraser of dust-proof efficient |
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| CN105270062A CN105270062A (en) | 2016-01-27 |
| CN105270062B true CN105270062B (en) | 2017-01-04 |
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| CN201410597504.6A Expired - Fee Related CN104260584B (en) | 2014-10-30 | 2014-10-30 | A kind of blackboard eraser of dust-proof efficient |
| CN201510891593.XA Expired - Fee Related CN105415944B (en) | 2014-10-30 | 2014-10-30 | Blackboard eraser capable of reducing dust pollution |
| CN201510890353.8A Expired - Fee Related CN105415943B (en) | 2014-10-30 | 2014-10-30 | Dustproof blackboard eraser |
| CN201510887613.6A Expired - Fee Related CN105415942B (en) | 2014-10-30 | 2014-10-30 | Dustproof blackboard eraser improving erasing efficiency |
| CN201511003250.1A Expired - Fee Related CN105415947B (en) | 2014-10-30 | 2014-10-30 | Blackboard eraser with dust collector |
| CN201510890321.8A Active CN105270062B (en) | 2014-10-30 | 2014-10-30 | A kind of blackboard eraser with dust-proof effect |
| CN201511003270.9A Expired - Fee Related CN105415948B8 (en) | 2014-10-30 | 2014-10-30 | Efficient blackboard eraser |
| CN201511003256.9A Active CN105398265B (en) | 2014-10-30 | 2014-10-30 | A kind of dust-proof blackboard eraser with dust collection function |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410597504.6A Expired - Fee Related CN104260584B (en) | 2014-10-30 | 2014-10-30 | A kind of blackboard eraser of dust-proof efficient |
| CN201510891593.XA Expired - Fee Related CN105415944B (en) | 2014-10-30 | 2014-10-30 | Blackboard eraser capable of reducing dust pollution |
| CN201510890353.8A Expired - Fee Related CN105415943B (en) | 2014-10-30 | 2014-10-30 | Dustproof blackboard eraser |
| CN201510887613.6A Expired - Fee Related CN105415942B (en) | 2014-10-30 | 2014-10-30 | Dustproof blackboard eraser improving erasing efficiency |
| CN201511003250.1A Expired - Fee Related CN105415947B (en) | 2014-10-30 | 2014-10-30 | Blackboard eraser with dust collector |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511003270.9A Expired - Fee Related CN105415948B8 (en) | 2014-10-30 | 2014-10-30 | Efficient blackboard eraser |
| CN201511003256.9A Active CN105398265B (en) | 2014-10-30 | 2014-10-30 | A kind of dust-proof blackboard eraser with dust collection function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105946411B (en) * | 2016-06-27 | 2017-12-19 | 张惠媛 | A kind of blackboard eraser |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105415948B (en) | 2017-01-18 |
| CN105415947B (en) | 2017-01-18 |
| CN105415948A (en) | 2016-03-23 |
| CN105415944A (en) | 2016-03-23 |
| CN105415943A (en) | 2016-03-23 |
| CN105415948B8 (en) | 2017-04-12 |
| CN105415943B (en) | 2017-01-18 |
| CN105415942A (en) | 2016-03-23 |
| CN105398265B (en) | 2017-10-13 |
| CN105415942B (en) | 2017-03-22 |
| CN105270062A (en) | 2016-01-27 |
| CN105398265A (en) | 2016-03-16 |
| CN104260584A (en) | 2015-01-07 |
| CN105415944B (en) | 2017-03-22 |
| CN104260584B (en) | 2016-02-24 |
| CN105415947A (en) | 2016-03-23 |
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Effective date of registration: 20161202 Address after: 226200 Guangzhou Road, Jiangsu city of Nantong Province Haimen Haimen Economic and Technological Development Zone No. 999 Applicant after: HAIMEN JIANGHAI CONSTRUCTION INVESTMENT CO., LTD. Address before: 330052 Nanchang City, Nanchang County, Lake Town, August, Lake Road, Wei Wei, Clear Water Bay dream of the dream of the hospital on the 9 floor, the building of the Applicant before: Luo Guoyou |
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