CN105818585B - Automatic dust-free backboard eraser - Google Patents
Automatic dust-free backboard eraser Download PDFInfo
- Publication number
- CN105818585B CN105818585B CN201610231496.2A CN201610231496A CN105818585B CN 105818585 B CN105818585 B CN 105818585B CN 201610231496 A CN201610231496 A CN 201610231496A CN 105818585 B CN105818585 B CN 105818585B
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- CN
- China
- Prior art keywords
- pipe
- blackboard
- arm
- air inlet
- blackboard eraser
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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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- Cleaning In General (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides an automatic dust-free blackboard eraser which comprises a wiping device and a guiding device guiding the wiping device to move on a blackboard. The wiping device comprises a shell. Dustproof pipes are arranged on the two edges of the shell. The shell is further internally provided with vertically-arranged air inlet pipes and a vertically-arranged exhaust pipe. The air inlet pipes are provided with first branch pipes perpendicular to the blackboard. The first branch pipes communicate with second branch pipes. The second branch pipes communicate with the dustproof pipes. Turbines are arranged in the first branch pipes and are connected with worms. The worms face the blackboard and stretch out of the first branch pipes. The stretching-out ends of the worms are connected with a blackboard eraser body. According to the purpose, the automatic dust-free blackboard eraser is provided, and dust pollution is avoided while the blackboard is automatically wiped.
Description
Technical field
The invention belongs to blackboard eraser technical field, more particularly to a kind of automatic dust-free blackboard eraser.
Background technology
Blackboard and blackboard eraser are indispensable educational aids in current teaching process, but erase the board at present or using
Usual conventional blackboard eraser is purged, whether teacher or student is when erasing the board, and is required for frequent swing arm, in order to
Chalk writing on erasing blackboard, especially when the shorter student of height and teacher are located at the powder of higher position on blackboard in erasing
During writing, often all feel relatively more painstaking, cause arm to ache, and while erasing, chalk dust can disperse to air
In, a portion can directly drop with the student erasing the board or teacher, another part can be scattered to classroom each
Corner, not only affects classroom environment, and has a strong impact on the healthy of student and teacher in classroom.
Content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of automatic dust-free blackboard eraser,
Dust pollution is avoided while Automatic erasing blackboard.
For achieving the above object and other related purposes, the present invention provides a kind of automatic dust-free blackboard eraser.Fill including wiping
Put and guide the guider of wiping arrangement movement on blackboard, described wiping arrangement includes shell, described shell both sides are provided with
Dustproof pipe, described inside the shell is additionally provided with vertically arranged air inlet pipe and blast pipe, and described air inlet pipe is provided with perpendicular to blackboard
First arm, described first arm is communicated with the second arm, and described second arm is connected with Dustproof pipe, in described first arm
Portion is provided with turbine, and described turbine is connected with worm screw, and described worm screw towards blackboard and stretches out the first arm, on described worm screw external part
It is connected with blackboard eraser.
Using said structure, by air is pressed into air inlet pipe, air enters the first arm by air inlet pipe, drives turbine rotation
Turn thus driving blackboard eraser rotation that blackboard is wiped.Subsequent air is entered back into dust-proof by first arm entrance the second arm
Pipe, is blown out by Dustproof pipe, finally enters blast pipe and discharges.Because Dustproof pipe is located at the both sides of shell, so during by blackboard wiping
The dust producing blows to centre by both sides inside the housing and is discharged by blast pipe with air-flow.Wiping arrangement is driven by guide
Transverse movement on blackboard, can be wiped to blackboard comprehensively.
Preferably, described guider includes upper and lower walking track, described upper and lower walking track is provided with uplink and downlink
Walk mechanism, described wiping arrangement is fixed between upper and lower walking mechanism.
As preferred：Described inside the shell is provided with left air inlet pipe, right air inlet pipe, described left air inlet pipe pass through the first arm, the
Two arms are connected with the Dustproof pipe on the left side, and described right air inlet pipe passes through the first arm, the second arm is connected with the Dustproof pipe on the right；
The first arm in described left air inlet pipe, right air inlet pipe uniformly staggers setting；Described blast pipe is arranged on left air inlet pipe and the right side is entered
Between tracheae, described blast pipe is provided with polylith collecting plate, the downward-sloping setting of described collecting plate, and described Dustproof pipe is provided with many
Block airborne dust plate, described airborne dust plate tilts upward setting.
Using said structure, left and right air inlet pipe is set, you can to arrange two row blackboard erasers, blackboard can be carried out higher
The wiping of effect.First arm uniformly staggers setting in left and right air inlet pipe, is easy to inside the first arm in left and right air inlet pipe
Worm and gear also uniformly stagger setting so that two row blackboard erasers make up mutually between the adjacent blackboard eraser of same column the wiping at place.Row
Tracheae is arranged on and also improves the dust-proof efficiency of exhaust between two air inlet pipe.Airborne dust plate tilts upward setting, it is to avoid dust because
Gravity fall, simultaneously corresponding by downward-sloping for collecting plate setting, between Dustproof pipe and blast pipe formed uniform pitch upwards
Airflow path, make dust in runner with air discharge.
As preferred：Described Dustproof pipe includes voltage-stabiliser tube and jet pipe, and described voltage-stabiliser tube is in parallel with jet pipe and passes through pipe
Wall links together, and is connected by strip hole at tube wall between described voltage-stabiliser tube and jet pipe, described second arm with
Voltage-stabiliser tube connects.
Using said structure, the air-flow that multiple second arms flow into is carried out by pressure regulation by voltage-stabiliser tube, enters back into afterwards and penetrate
Flow tube flows out, and the flow velocity of the multiply air-flow of jet pipe outflow so can be made consistent with pressure stability.Make the gas that jet pipe flows out
Stream can be taken away dust and enter blast pipe.
As preferred：Described voltage-stabiliser tube has gas porthole towards on the wall of blackboard.
Using said structure, by arranging gas porthole so that housing forms the space of sealing with blackboard, avoid powder further
Dirt is shed by housing.
As preferred：Described worm screw external part is fixed with support set, and the internal wall of described support set is provided with groove, described
The support set other end is threaded connection the end cap of ring-type；Described blackboard eraser one side is wiping surface, and another side is provided with cylinder,
Described cylinder is provided with boss, and described outer wall of boss is provided with rib, and the groove fit within support set, sheathed on described cylinder
Have by spring from blackboard eraser to external compression, the outside of described first arm and the second arm junction is provided with electromagnet, described convex
Platform is provided with Nd-Fe-B permanent magnetic.
Using said structure, when the worm rotates, drive support set rotation, the groove on the wall of support set inside and boss
On rib cooperation, thus drive blackboard eraser rotation blackboard is wiped.Support set threaded one end is connected with the end cap of ring-type, when
When needing to change spring, back out end cap.
When wiping, blackboard eraser is compressed by spring to blackboard direction, improves wiping effect.Further, since groove and boss
Cooperation so that blackboard eraser can only be in the axially-movable of support set, when spring by blackboard eraser to blackboard direction as an entirety
During compression, though spring to the force direction of blackboard eraser not in axial direction, also will not make the pressure to blackboard for the wiping surface of blackboard eraser
Uneven, thus ensure that the effect of wiping.
When energized, electromagnet and permanent magnetism cooperation, can make blackboard eraser away from blackboard, that is, lift blackboard eraser, will wipe dress
Put and move to the place needing to wipe, then power-off falls blackboard eraser.Reach the purpose that fixed point wipes.On the contrary, when wiping effect not
When good, can also being reversely energized, make electromagnet repel permanent magnetism, blackboard eraser is pressed further onto blackboard, improving pressure thus improving
Wiping effect.In addition, by arranging spring, the wiping surface moment of blackboard eraser can be made to be close to blackboard, it is to avoid blackboard out-of-flatness
When wiping surface cannot be adjacent to the phenomenon of blackboard, improve wiping effect.
As preferred：Also include air compressor machine, air induction hose and exhaust hose, described air induction hose one end is with air compressor machine even
Logical, the other end is connected with air inlet pipe, and described exhaust hose is connected with blast pipe.
As preferred：Also include flexible pipe telescoping mechanism, described flexible pipe telescoping mechanism is included positioned at upper walking track and wiping
Pipe laying groove between device, is provided with bellows in described pipe laying groove, the free end of described bellows is provided with connector and wiping
Wipe crust of the device to connect, described air induction hose and exhaust hose enter flexible soft through connector after being stretched out by wiping arrangement shell
Pipe.
Using said structure, air induction hose and exhaust hose can be avoided random above blackboard when wiping arrangement moves
Then move or be stuck on walking track, and reduce noise.
As preferred：Blackboard is stretched out at described upper and lower walking track two ends, and described upper and lower walking track two ends are equipped with gear
Plate prevents wiping arrangement from falling.
As described above, the invention has the beneficial effects as follows：Energy Automatic erasing blackboard, wiping effect is good, and no dust spills, and real
Show fixed point to wipe, in addition, this apparatus structure is simple, change blackboard eraser convenient.
Brief description
Fig. 1 is the structural representation of automatic dust-free blackboard eraser in the embodiment of the present invention；
Fig. 2 is the structural representation of wiping arrangement in the embodiment of the present invention；
Fig. 3 is the structural representation of the first arm and the second arm junction in the embodiment of the present invention.
Piece mark explanation
Walking track on 10
20 times walking tracks
30 pipe laying grooves
40 wiping arrangements
41 Dustproof pipes
411 airborne dust plates
42 air inlet pipe
421 first arms
422 second arms
43 blast pipes
431 collecting plates
51 electromagnet
52 worm screws
53 support sets
60 blackboard erasers
61 wiping surfaces
62 cylinders
63 boss
Specific embodiment
Hereinafter embodiments of the present invention are illustrated by particular specific embodiment, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
Refer to Fig. 1 to Fig. 3.It should be clear that structure depicted in this specification institute accompanying drawings, ratio, size etc., all only in order to
Content disclosed in cooperation specification, so that those skilled in the art understands and reads, being not limited to the present invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
Whole, under not affecting present invention effect that can be generated by and the purpose that can reach, all should still fall in disclosed skill
In the range of art content obtains and can cover.Meanwhile, in this specification cited as " on ", D score, "left", "right", " middle " and
The term of " one " etc., is merely convenient to understanding of narration, and is not used to limit the enforceable scope of the present invention, its relativeness
It is altered or modified, under no essence change technology contents, when being also considered as the enforceable category of the present invention.
In order to describe the present invention in detail, next the present invention is illustrated：As shown in Figure 1 to Figure 3, this
Bright offer a kind of automatic dust-free blackboard eraser, including on walking track 10, lower walking track 20, described upper and lower walking track on set
There is upper and lower walking mechanism, wherein, upper walking mechanism includes upper roller, motor and upper support frame, and roller is arranged on walking track
On 10, upper support frame upper end supports motor, and lower end is connected with wiping arrangement.Lower walking mechanism includes bottom roller and lower bracing frame.
Wiping arrangement 40 is fixed on blackboard front by upper and lower bracing frame, and described wiping arrangement 40 includes shell, described outer
Shell can be cuboid and longer one side is vertically arranged, and its length should cover blackboard on vertical, be adjacent to blackboard that
Face is vacant, the side abutment blackboard of four sides of shell, makes shell and blackboard form the space of sealing.The material of described shell is adopted
With the good vacuum safety glass of soundproof effect, or made using common sheet material central filler Sound-proof material.
The both sides of described enclosure are provided with Dustproof pipe 41, Dustproof pipe 41 is uniformly provided with towards in the middle part of shell and gives vent to anger
Hole, what airborne dust plate 411 tilted upward is fixed on venthole bottom.Described inside the shell is additionally provided with vertically arranged left and right air inlet pipe
With blast pipe 43, described left air inlet pipe is communicated with 8 the first arms 421 perpendicular to blackboard, described first arm 421 connects
It is connected with the second arm 422, described second arm 422 is connected with the Dustproof pipe 41 on the left side, is provided with turbine inside the first arm 421,
Described turbine is connected with worm screw 52, and described worm screw 52 towards blackboard and stretches out the first arm 421 and the connection of the second arm 422
Place.In the same manner for right air inlet pipe, right air inlet pipe is provided with 6 the first arms 421.The first arm connecting in left and right air inlet pipe
421 uniformly stagger setting on vertical.Blast pipe 43 is arranged between left and right air inlet pipe, and blast pipe 43 has steam vent, collection
Dirt plate 431 diagonally downward be arranged on steam vent top, be correspondingly arranged with airborne dust plate 411, airborne dust plate 411 and collecting plate 431 with
The corner dimension of horizontal plane is identical, can form stable runner.The caliber of blast pipe 43 is gradually increased from the bottom up, that is, in row
In the case that in tracheae 43, more up flow is bigger, increasing section amasss to reduce flow velocity and air pressure.Make the air-flow on top equally permissible
Enter blast pipe 43 it is ensured that in a vertical direction, the air-flow of multiple runners all can stable and consistent exhaust is flowed into by Dustproof pipe 41
Pipe 43.
Described Dustproof pipe 43 includes voltage-stabiliser tube and jet pipe, and described voltage-stabiliser tube is in parallel with jet pipe and is connected to by tube wall
Together, by strip hole connection, described second arm 422 and the voltage-stabiliser tube at tube wall between described voltage-stabiliser tube and jet pipe
Connection.Described voltage-stabiliser tube has gas porthole towards on the wall of blackboard, and described venthole is opened on jet pipe.
The air-flow that multiple second arms 422 flow into is carried out by pressure regulation by voltage-stabiliser tube, enters back into jet pipe afterwards and flow out, this
Sample can make the flow velocity of the multiply air-flow of jet pipe outflow consistent with pressure stability.Make the air-flow that jet pipe flows out can take away powder
Dirt simultaneously enters blast pipe 43.In addition, by the cooperation on voltage-stabiliser tube and blast pipe 43 structure so that the multiply air-flow of enclosure
Flow velocity and pressure from Dustproof pipe 41 flow out to entrance blast pipe 43 during this all can stable and consistent so that each stock air-flow phase
Impact interference between pair is few, steady air current, and dust discharge and blackboard cleaning are wiped efficiency high and stablized, and reduce each stock air-flow due to flow velocity
Noise produced by compressed air when inconsistent.
Described worm screw 52 external part is fixed with support set 53, and described support set 53 internal face is provided with axial groove, institute
State the end cap that support set 53 other end is threaded connection ring-type.Described blackboard eraser 60 one side is wiping surface 61, wiping surface 61
For circle, blackboard eraser 60 one side is also circle, is provided with installing hole, is bolted on blackboard eraser 60 in the middle part of wiping surface 61,
It is convenient for changing wiping surface 61.It is provided with cylinder 62, described cylinder 62 is provided with boss 63, described boss in the middle part of blackboard eraser 60 another side
63 outer walls are provided with rib, the groove fit with support set 53 inwall, and described cylinder 62 is arranged with blackboard eraser 60 to external compression
Spring, the outside of described first arm 421 and the second arm 422 junction is provided with electromagnet, and described boss 63 is provided with neodymium
Iron boron permanent magnetism.
Also include air compressor machine, air induction hose and exhaust hose, described air induction hose one end is connected with air compressor machine, the other end with
Air inlet pipe 42 connects, and described exhaust hose one end is connected with blast pipe 43, and the other end is connected with air exhauster, the row of air exhauster
Tolerance is more than or equal to the air inflow of air compressor machine, makes enclosure interior be in negative pressure state, avoids dust to fly away further.
Also include flexible pipe telescoping mechanism, described flexible pipe telescoping mechanism include positioned at upper walking track 10 and wiping arrangement 40 it
Between pipe laying groove 30, pipe laying groove 30 installs or is opened on the wall on blackboard top and outdoor is extended in one end, described air compressor machine
It is also disposed at outdoor with air exhauster, be provided with bellows in described pipe laying groove 30, and open towards pipe laying groove 30 on bellows
Mouth direction offers exhaust hole, it is to avoid generation loud noise when exhaust and air-breathing when flexible pipe stretches.The freedom of described bellows
End is provided with connector and wiping arrangement 40 cage connection, after described air induction hose and exhaust hose are stretched out by wiping arrangement 40 shell
Enter bellows through connector.During work, connector is promoted by shell thus driving bellows flexible in pipe laying groove 30.
In addition, the electric wire that this device is connected is also disposed in bellows.
Blackboard is stretched out at described upper and lower walking track two ends, and described upper and lower walking track two ends are equipped with baffle plate to prevent from wiping
Device 40 falls.Described baffle plate is to be bolted on upper and lower walking track.Dismantle baffle plate can by this device take off into
Row checking maintenance.
When erasing the board, due to dust can be accumulated on blackboard eraser so that wiping after blackboard, blackboard also has one layer of dust, no
Method cleans off a blackboard, and impact student looks at the blackboard.So being frequently necessary to before erasing the board knock by blackboard eraser in windowsill, by blackboard
The dust removing smearing accumulation is wiped again, and wiping effect can be well a lot.
For solving the problems, such as automatic blackboard eraser dust stratification.When this device does not work, the blackboard left side or the right can be rested on
Track on, do not hinder the normal use of blackboard.At this moment, air compressor machine can be allowed to start, but motor does not run, turbine drives black
Blackboard eraser 60 dallies, and the air-flow being flowed out by Dustproof pipe 41 cleans to blackboard eraser 60.Due to air-flow and blackboard eraser 60 itself rotation
All there is certain speed, can quickly blackboard eraser 60 be cleaned up.Recover wiping ability.Further, black in wiping
During plate, if wiping effect is bad, such as hence it is evident that can see that chalk dust also much stays blackboard after blackboard writing being wiped
On, can confirm that it is that the accumulation of blackboard eraser dust is too many, at this moment so that blackboard eraser 60 is dallied by lifting blackboard eraser 60,
It is cleaned.Further, since being additionally provided with gas porthole on Dustproof pipe 41, the air-flow being projected by gas porthole can be carried out to blackboard
Clean, equally will remain in the dust cleaning on blackboard, and improve the effect of wiping further.
During work, mainly there is following several operation.
1, start air compressor machine and motor, by the positive and negative rotation of controlled motor, drive the left and right walking of wiping arrangement 40, right
Blackboard is comprehensively cleaned.
2, start air compressor machine and motor, and coordinate and lift blackboard eraser 60 This move, blackboard is carried out with fixed point and cleans.
3, start air compressor machine, and coordinate and lift blackboard eraser 60 This move, blackboard eraser is cleaned.
In sum, the present invention has the effect that：1st, can be with Automatic erasing blackboard.2nd, no dust.3rd, spy can be wiped
Positioning is put, the content required for retaining, practical.4th, convenient and high-efficient cleaning sweep-black blackboard eraser is it is ensured that wiping effect.5th, device knot
Structure is simple, for the part of rapid wear, easily inefficacy, all convenient dismounting of such as wiping surface and spring, and it is easy to checking maintenance.6th, apparatus structure
Simply, internal mechanical structure is few, lightweight, is easily installed and checking maintenance.
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe
The personage knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
All equivalent modifications becoming or change, must be covered by the claim of the present invention.
Claims (5)
1. a kind of automatic dust-free blackboard eraser it is characterised in that：Including wiping arrangement and guiding wiping arrangement movement on blackboard
Guider, described wiping arrangement includes shell, and described shell both sides are provided with Dustproof pipe, and described inside the shell is additionally provided with vertically arranged
Air inlet pipe and blast pipe, described air inlet pipe is provided with the first arm perpendicular to blackboard, described first arm is communicated with
Two arms, described second arm is connected with Dustproof pipe, is provided with turbine, described turbine is connected with worm screw inside described first arm,
Described worm screw towards blackboard and stretches out the first arm, and described worm screw external part is connected with blackboard eraser；Described inside the shell is provided with a left side
Air inlet pipe, right air inlet pipe, described left air inlet pipe passes through the first arm, the second arm is connected with the Dustproof pipe on the left side, and the described right side is entered
Tracheae passes through the first arm, the second arm is connected with the Dustproof pipe on the right；The first arm in described left air inlet pipe, right air inlet pipe
Uniformly stagger setting；Described blast pipe is arranged between left air inlet pipe and right air inlet pipe, and described blast pipe is provided with polylith dust
Plate, the downward-sloping setting of described collecting plate, described Dustproof pipe is provided with polylith airborne dust plate, and described airborne dust plate tilts upward setting；
Described Dustproof pipe includes voltage-stabiliser tube and jet pipe, and described voltage-stabiliser tube is in parallel with jet pipe and is linked together by tube wall, described
Connected by the strip hole at tube wall between voltage-stabiliser tube and jet pipe, described second arm is connected with voltage-stabiliser tube；Described steady
Pressure pipe has gas porthole towards on the wall of blackboard；Described worm screw external part is fixed with support set, the internal wall of described support set
It is provided with groove, the described support set other end is threaded connection the end cap of ring-type；Described blackboard eraser one side is wiping surface, separately
Simultaneously it is provided with cylinder, described cylinder is provided with boss, described outer wall of boss is provided with rib, join with the groove within support set
Close, described cylinder is arranged with by spring from blackboard eraser to external compression, the outside of described first arm and the second arm junction
It is provided with electromagnet, described boss is provided with Nd-Fe-B permanent magnetic.
2. a kind of automatic dust-free blackboard eraser according to claim 1 it is characterised in that：Described guider includes upper and lower
Walking track, described upper and lower walking track is provided with upper and lower walking mechanism, and described wiping arrangement is fixed on upper and lower walking mechanism
Between.
3. a kind of automatic dust-free blackboard eraser according to claim 2 it is characterised in that：Also include air compressor machine, air induction hose
And exhaust hose, described air induction hose one end connected with air compressor machine, and the other end is connected with air inlet pipe, described exhaust hose and exhaust
Pipe connects.
4. a kind of automatic dust-free blackboard eraser according to claim 3 it is characterised in that：Also include flexible pipe telescoping mechanism, institute
State flexible pipe telescoping mechanism to include, positioned at the pipe laying groove between upper walking track and wiping arrangement, being provided with flexible soft in described pipe laying groove
Pipe, the free end of described bellows is provided with connector and wiping arrangement cage connection, described air induction hose and exhaust hose by
Wiping arrangement shell enters bellows through connector after stretching out.
5. a kind of automatic dust-free blackboard eraser according to claim 2 it is characterised in that：Described upper and lower walking track two ends
Stretch out blackboard, described upper and lower walking track two ends are equipped with baffle plate prevents wiping arrangement from falling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231496.2A CN105818585B (en) | 2016-04-13 | 2016-04-13 | Automatic dust-free backboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610231496.2A CN105818585B (en) | 2016-04-13 | 2016-04-13 | Automatic dust-free backboard eraser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105818585A CN105818585A (en) | 2016-08-03 |
| CN105818585B true CN105818585B (en) | 2017-02-15 |
Family
ID=56525930
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610231496.2A Active CN105818585B (en) | 2016-04-13 | 2016-04-13 | Automatic dust-free backboard eraser |
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| CN (1) | CN105818585B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523576A (en) * | 2018-05-23 | 2019-12-03 | 苏州市亘晟涂装工程有限公司 | An easy-to-clean powder spray booth shell for electrostatic spraying |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6464899A (en) * | 1987-09-04 | 1989-03-10 | Kunito Nishisako | Self-propelling automatic type eraser device |
| CN102367032A (en) * | 2011-10-24 | 2012-03-07 | 沈阳化工大学 | Wet-adsorbing dust-free blackboard eraser |
| CN103264599A (en) * | 2013-05-08 | 2013-08-28 | 健雄职业技术学院 | Automatic blackboard eraser |
| CN105310599A (en) * | 2015-11-25 | 2016-02-10 | 上海云鱼智能科技有限公司 | Inspiratory drive wiping tool assembly |
-
2016
- 2016-04-13 CN CN201610231496.2A patent/CN105818585B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6464899A (en) * | 1987-09-04 | 1989-03-10 | Kunito Nishisako | Self-propelling automatic type eraser device |
| CN102367032A (en) * | 2011-10-24 | 2012-03-07 | 沈阳化工大学 | Wet-adsorbing dust-free blackboard eraser |
| CN103264599A (en) * | 2013-05-08 | 2013-08-28 | 健雄职业技术学院 | Automatic blackboard eraser |
| CN105310599A (en) * | 2015-11-25 | 2016-02-10 | 上海云鱼智能科技有限公司 | Inspiratory drive wiping tool assembly |
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| Publication number | Publication date |
|---|---|
| CN105818585A (en) | 2016-08-03 |
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Effective date of registration: 20230710 Address after: Room 11-2, Unit 1, Building 4, No. 737, Yulu Avenue, Yubei District, Chongqing 401121 Patentee after: He Junhan Address before: 401220 11-10, Unit 2, Building 5, No. 2, Taoyuan South Road, Changshou District, Chongqing Patentee before: Zhou Weiyi |
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