CN206718828U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN206718828U CN206718828U CN201720255867.0U CN201720255867U CN206718828U CN 206718828 U CN206718828 U CN 206718828U CN 201720255867 U CN201720255867 U CN 201720255867U CN 206718828 U CN206718828 U CN 206718828U
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- CN
- China
- Prior art keywords
- housing
- push pedal
- cotton
- clip
- liquid storage
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of blackboard eraser, including housing and wipe cotton, wipe the side that cotton is arranged on housing, installation cavity is provided with the housing, push pedal is provided with installation cavity, push pedal is vertically arranged with wiping cotton, the outer peripheral face of push pedal and the inner wall sealing of installation cavity are set, the confined space that push pedal surrounds with installation cavity wall forms liquid storage cylinder, driving push pedal is provided between the outside of the push pedal and the inwall of housing to move in one direction so as to change the first spring of liquid storage cylinder size, length direction or width guiding movement of the push pedal along housing, the inlet connected with liquid storage cylinder is provided with the housing, blanking cover is provided with inlet, the through hole for connecting liquid storage cylinder and wiping cotton is provided with side on the housing with wiping cotton homonymy, the switch member closed or open through hole is provided with liquid storage cylinder.Providing one kind can be used to erase the board and can for wiping blank, and functional diversities, versatility is good, is easy to the blackboard eraser promoted and used.
Description
Technical field
The utility model belongs to teaching aid technical field, especially a kind of to can be used for erasing the board or the blackboard eraser of blank.
Background technology
Writing on the blackboard, a kind of direct expression way when being teaching or meeting, people are felt by direct vision and understand book
The content and intension write, this mode are favored by people deeply.Blackboard eraser be it is essential in our daily study as religion
Tool, and common blackboard eraser also has the drawbacks of its is inevitable, is exactly that chalk dust can be made disorderly to float in use, can not keep away
That exempts from is sucked in lung by teacher or student, causes certain illness in the course of time, so needing a dustless blackboard eraser.
Nowadays, some traditional blackboards are substituted by blank, and all the advantages of blank writing on the blackboard become increasingly conspicuous.Meanwhile whiteboard eraser is used as it
Essential instrument, its role are also increasingly apparent.Specifically, it is exactly that people first write on blank, makes thereafter
Writing is wiped with whiteboard eraser, so as to realize the function of whiteboard eraser.And traditional whiteboard eraser is made up of housing and wiping cotton, structure letter
Single, the erasing mode of dust-free avoids the drawbacks of blackboard uses chalk dust big, still, equally also brings some problems.
The white board marker that uses is if oiliness when being write on blank, with whiteboard eraser is difficult wiped clean after writing, even if the white board marker used
To be water-based, through after a while or it is overnight wipe again just it is relatively difficult, people need to use ability after a small amount of water or cleaning solution
Wiped clean, and only its function can not be realized well using whiteboard eraser, it is necessary to which a hand holds cleaning solution sprinkling, another
Hand wipes by whiteboard eraser, and troublesome in poeration, efficiency is low.In summary, either blackboard eraser or whiteboard eraser are required to improve, and
Existing blackboard eraser and whiteboard eraser poor universality, is unfavorable for being widely popularized and uses.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provide one kind can be used to erasing the board and can be used to wiping it is white
Plate, and when for erasing the board, the effect of dustless wiping board can be reached, when for wiping blank, notes can be avoided to wipe unclean
Situation occur, versatility is good, is easy to promote and uses.To achieve these goals, the technical solution adopted in the utility model
It is：A kind of blackboard eraser, including housing and wiping cotton, wipe the side that cotton is arranged on housing, installation cavity, installation cavity are provided with the housing
Push pedal is inside provided with, push pedal is vertically arranged with wiping cotton, and the outer peripheral face of push pedal and the inner wall sealing of installation cavity are set, push pedal and installation
The confined space that cavity wall surrounds forms liquid storage cylinder, and driving push pedal court is provided between the outside of the push pedal and the inwall of housing
So as to change the first spring of liquid storage cylinder size, length direction or width of the push pedal along housing, which are oriented to, to be moved for one direction movement
It is dynamic, inlet connect with liquid storage cylinder is provided with the housing, is provided with blanking cover on inlet, it is same with wiping cotton on the housing
Connection liquid storage cylinder is provided with the side of side and wipes the through hole of cotton, the switch member closed or open through hole is provided with liquid storage cylinder.
In above-mentioned technical proposal, it can be cotton or soft cloth to wipe cotton, can also be that other are used to wipe and have spongy material, wipe
Cotton is fixed on the side of housing, and the setting of housing is hand-held for convenience, and preferable general housing is into cube, push pedal and housing
Inwall surround liquid storage cylinder, the first spring is arranged on outside liquid storage cylinder, changes the size of liquid storage cylinder, liquid storage cylinder for promoting push pedal
Middle filled water or cleaning solution, water or cleaning solution in liquid storage cylinder can flow to wipe cotton and drench by through hole wipes cotton, blackboard eraser is existed
Dustless effect can be reached when erasing the board, the ink residue of writing can be avoided when wiping blank on blank, it is not necessary to a hand
By water or cleaning solution, another hand takes blackboard eraser, and when the water in liquid storage cylinder or cleaning solution reduction, push pedal is in the first spring power
In the presence of promote push pedal, reduce the space of liquid storage cylinder, water or cleaning solution is filled whole liquid storage cylinder all the time, so work as through hole
During opening, water or cleaning solution could smoothly flow to and wipe cotton, will not can not be flowed to because of the reduction of water or cleaning solution and wipe cotton, when past storage
Water filling or during cleaning solution in sap cavity, push pedal because the volume of water or cleaning solution increases, can be promoted toward opposite direction, increase liquid storage cylinder
Interior space, when needing to soak wiping cotton, switch member opens through hole, liquid storage cylinder is connected with cotton is wiped, and cotton is wiped when that need not soak
When, through hole is closed by switch member, liquid storage cylinder is blocked and wipes connecting for cotton, it is simple in construction, it is easy to operate.As the utility model
Further setting, the switch member includes push rod and the capping that is covered on the port of through hole, and one end of push rod and capping are solid
Fixed or be wholely set, the other end, which passes housing and is placed in outside housing, forms drive end, and push rod can drive capping to move along its axis, institute
State and second spring is arranged with the outer peripheral face of push rod, one end and the capping of second spring connect, and the inwall of the other end and housing connects
Connect.In above-mentioned technical proposal, when needing to soak wiping cotton, through hole is removed in pressing or the drive end for pulling push rod, driving capping
Port, liquid storage cylinder is set to be connected with wiping cotton, the water or cleaning solution in liquid storage cylinder are flowed to by through hole wipes cotton, after pressing or pulling push rod
Drive end can be decontroled immediately, and due to the effect of second spring elastic force, capping can reset to be covered on the port of through hole again, real
Existing through hole needs some times from the switching for being opened to closure, and because capping resets, so the switch member can realize quantitative-outlet
Function, the problem of so avoiding because the water of outflow or the amount of cleaning solution are excessive, and wiping cotton is dripped in wiping process,
The flow of water or cleaning solution is accurately controlled, not only clean hygiene, go back economical environment-protective, avoid wasting, it is necessary to water or cleaning solution
When measuring larger, also can manual control water or cleaning solution discharge, only need to press or pull the time lengthening of drive end, make
It is economic and environment-friendly with convenience, it is easy to be extended and applied.Further set as of the present utility model, the through hole is located at housing
Middle part, push pedal opposition are arranged on the both sides of installation cavity and are symmetrical set, and switch member is between two push pedals, and two push pedals are respective
The first spring driving under mutually draw close.In above-mentioned technical proposal, when wiping cotton is soaked, preferably start to soak from the central position,
Uniformly could so be spread to surrounding, avoid it is local soak, because through hole need to be always situated in liquid storage cylinder, so push pedal is preferably in
Be symmetricly set on the both sides of through hole, so no matter push pedal mutually being drawn close or being located remotely from each other, through hole be always positioned at two push pedals it
Between, i.e., through hole is always positioned in liquid storage cylinder, if an only push pedal, then and through hole need to be arranged on side of the housing away from push pedal,
It could so ensure that moving through hole regardless of push pedal is always positioned in liquid storage cylinder, soak uniformly, the wiping effect of wiping board is more preferable,
It is more efficient using more convenient.Further set as of the present utility model, the wiping cotton is wrapped on the side of housing, is wiped
The edge of cotton is set on the outer peripheral face of housing, and the fixed ring-shaped clip for wiping cotton edge, annular are provided with the outer peripheral face of housing
The shape of clip is adapted to the exterior contour of housing, is wiped cotton and is formed removable setting with housing.In above-mentioned technical proposal, wipe cotton and exist
It is easily dirty during use, wiping effect will be influenceed after dirty, at this moment just needs to change blackboard eraser, but change whole blackboard eraser
Again waste very much, best mode be exactly only change wipe a cotton, it is so both economically and environmentally beneficial, wipe cotton edge be placed in ring-shaped clip and
Between the outer peripheral face of housing, it is fixed on by ring-shaped clip on housing and realizes dismountable structure, convenient dismounting and replacing, extension makes
Use the life-span.Further set as of the present utility model, the ring-shaped clip includes the first clip and the second clip, the first clip
It is centrosymmetric setting with the second clip, the one end of the first clip or the second clip stretches out to form snap fit, the second clip
Or first be provided with clip and form the neck being engaged by clamping with snap fit, it is provided with the outer peripheral face of the housing for ring-shaped clip
The annular groove being arranged.In above-mentioned technical proposal, the first clip and the second clip, which are harmonious, connects and composes ring-shaped clip, the first clip
The neck clamping of snap fit and the second clip, the snap fit of the second clip are connected with the neck of the first clip, are connected firmly, and dismounting is also square
Just, the setting of annular groove is in order to avoid ring-shaped clip projection is arranged on the outer peripheral face of housing, can not only so be improved hand-held
Comfortableness, and make profile more attractive.Further set as of the present utility model, the push rod is close to the periphery of drive end
The limited shoulder rank for preventing that drive end from entering in housing is provided with face, first spring and second spring are middle diameter
The ellipticity that maximum is gradually reduced to both ends respectively.In above-mentioned technical proposal, the setting of limited shoulder rank is in order to avoid the second bullet
Spring is excessively stretched, and is destroyed second spring elastic force, is influenceed service life, and can be accurately controlled water or each stream of cleaning solution
Output, the first spring and second spring be the small structure broad in the middle in two, can compressed the first spring and second spring
When be unlikely to deform bending, it is larger to bear the ability of pressure, high sensitivity, and abrasion is small, and elasticity lasts a long time.It is new as this practicality
The further setting of type, the blanking cover are made up of elastomeric material, and the middle part of blanking cover is pressure buffer portion.In above-mentioned technical proposal,
The good airproof performance with inlet is made up of elastomeric material for blanking cover, avoids overflowing, the setting of buffer part can alleviate in liquid storage cylinder water or
Cleaning solution avoids blanking cover from being disengaged with inlet, simple in construction, good sealing effect the pressure of blanking cover.Using such scheme, because of storage
Filled water or cleaning solution in sap cavity, it can be used for wiping blank so can be used to erase the board, dustless wiping can be reached when erasing the board
The effect of plate, when wiping blank, it is avoided that the residual of ink, versatile, functional diversities, service life length.With reference to attached
Figure is further described to the utility model.
Brief description of the drawings
Accompanying drawing 1 is the utility model specific embodiment schematic appearance；
Accompanying drawing 2 is the utility model specific embodiment structure decomposition figure；
Accompanying drawing 3 is the A-A sectional views of accompanying drawing 2；
Accompanying drawing 4 is the utility model specific embodiment structure sectional view；
Accompanying drawing 5 is the B-B sectional views of accompanying drawing 2.
Embodiment
The utility model is specifically described below by embodiment, is served only for carrying out further the utility model
Explanation, it is impossible to be interpreted as the restriction to scope of protection of the utility model, the technician in the field can be according to above-mentioned practical new
The content of type makes some nonessential modifications and adaptations to the utility model.Specific embodiment of the utility model such as Fig. 1-5
It is shown, a kind of blackboard eraser, including housing 1 and wiping cotton 2, the side that cotton 2 is arranged on housing 1 is wiped, is set in the housing 1
Installation cavity 11 is equipped with, push pedal 12 is provided with installation cavity 11, push pedal 12 is vertically arranged with wiping cotton 2, push pedal 12
The inner wall sealing of outer peripheral face and installation cavity 11 is set, and push pedal 12 is formed with the confined space that the inwall of installation cavity 11 surrounds and stored up
Sap cavity 111, driving push pedal 12 is provided between the outside of the push pedal 12 and the inwall of housing 1 and is moved in one direction
Move so as to change the first spring 13 of the size of liquid storage cylinder 111, length direction or width of the push pedal 12 along housing 1
Guiding movement, the inlet 14 connected with liquid storage cylinder 111 is provided with the housing 1, is provided with inlet 14 stifled
Lid 141, the through hole for connect liquid storage cylinder 111 and wiping cotton 2 is provided with the side on the housing 1 with wiping the homonymy of cotton 2
15, the switch member 16 closed or open through hole is provided with liquid storage cylinder 111.It can be cotton or soft cloth to wipe cotton 2, may be used also
To be that other are used to wipe and have spongy material, the side that cotton 2 is fixed on housing 1 is wiped, the setting of housing 1 is
Hand-held for convenience, preferable general housing 1 surrounds liquid storage cylinder 111 into cube, push pedal 12 and the inwall of housing 1,
First spring 13 is arranged on outside liquid storage cylinder 111, changes the size of liquid storage cylinder 111, liquid storage for promoting push pedal 12
Filled water or cleaning solution in chamber 111, water or cleaning solution in liquid storage cylinder 111 can pass through the flow direction of through hole 15 and wipe cotton 2
And drench and wipe cotton 2, blackboard eraser is reached dustless effect when erasing the board, can avoid the ink of writing residual when wiping blank
Stay on blank, it is not necessary to which a hand takes water or cleaning solution, and another hand takes blackboard eraser, when the water or cleaning solution in liquid storage cylinder 111
During reduction, push pedal 12 promotes push pedal 12 in the presence of the elastic force of the first spring 13, reduces the space of liquid storage cylinder 111,
Water or cleaning solution is set to fill whole liquid storage cylinder 111 all the time, so when through hole 15 is opened, water or cleaning solution could smoothly
Flow direction wipes cotton 2, will not can not be flowed to because of the reduction of water or cleaning solution and wipe cotton 2, when toward water filling or cleaning in liquid storage cylinder 111
During liquid, because the volume of water or cleaning solution increases, push pedal 12 can be promoted toward opposite direction, increase the sky in liquid storage cylinder 111
Between, when needing to soak wiping cotton 2, switch member 16 opens through hole 15, liquid storage cylinder 111 is connected with cotton 2 is wiped, when not
When needing to soak wiping cotton 2, through hole 15 is closed by switch member 16, liquid storage cylinder 111 is blocked and wipes connecting for cotton 2, tie
Structure is simple, easy to operate.Above-mentioned switch member 16 includes push rod 161 and the capping being covered on the port of through hole 15
162, one end of push rod 161 and capping 162 are fixed or are wholely set, and the other end passes housing 1 and is placed in the profile of housing 1
Into drive end 163, push rod 161 can drive capping 162 to move along its axis, and be arranged on the outer peripheral face of the push rod 161
There is second spring 164, one end of second spring 164 is connected with capping 162, and the other end is connected with the inwall of housing 1.
When needing to soak wiping cotton 2, through hole 15 is removed in pressing or the drive end 163 for pulling push rod 161, driving capping 162
Port, make liquid storage cylinder 111 with wipe cotton 2 connect, the water or cleaning solution in liquid storage cylinder 111 pass through through hole 15 flow direction wipe
Cotton 2, pressing or can decontrol drive end 163 immediately after pulling push rod 161, due to the effect of the elastic force of second spring 164,
Capping 162 can reset to be covered on the port of through hole 15 again, realizes through hole 15 from the switching for being opened to closure, and because
Capping 162, which resets, needs some times, so the switch member 16 can realize the function of quantitative-outlet, so avoid because
The water of outflow or the amount of cleaning solution are excessive, and the problem of wiping cotton 2 is dripped in wiping process, accurately control water or cleaning
The flow of liquid, not only clean hygiene, goes back economical environment-protective, avoids wasting, it is necessary to when the amount of water or cleaning solution is larger, also can people's industry control
The discharge of water or cleaning solution processed, it only need to press or pull the time lengthening of drive end 163, easy to use, economic ring
Protect, be easy to be extended and applied.Above-mentioned through hole 15 is located at the middle part of housing 1, and the opposition of push pedal 12 is arranged on installation cavity 11
Both sides and be symmetrical set, switch member 16 is between two push pedals 12, and two push pedals 12 are in respective first spring 13
Driving under mutually draw close.When wiping cotton 2 is soaked, preferably start to soak from the central position, uniformly could so expand to surrounding
Dissipate, avoid it is local soak, because through hole 15 need to be always situated in liquid storage cylinder 111, so push pedal 12 is preferably symmetrical set
In the both sides of through hole 15, so no matter push pedal 12 is mutually drawn close or is located remotely from each other, through hole 15 is always positioned at two and pushed away
Between plate 12, i.e., through hole 15 is always positioned in liquid storage cylinder 111, if an only push pedal 12, then through hole 15 need to be set
Put in side of the housing 1 away from push pedal 12, could so ensure and move the position all the time of through hole 15 regardless of push pedal 12
In in liquid storage cylinder 111, soaking uniformly, the wiping effect of wiping board is more preferable, more efficient using more convenient.Above-mentioned wiping cotton 2 is wrapped
It is rolled on the side of housing 1, the edge for wiping cotton 2 is set on the outer peripheral face of housing 1, is set on the outer peripheral face of housing 1
The fixed ring-shaped clip 3 for wiping the edge of cotton 2 is equipped with, the shape of ring-shaped clip 3 is adapted to the exterior contour of housing 1, wipes cotton
2 form removable setting with housing 1.It is easily dirty in use to wipe cotton 2, will influence wiping effect after dirty,
At this moment just need to change blackboard eraser, but change whole blackboard eraser and waste very much again, best mode is exactly only to change to wipe cotton 2, so
Both economically and environmentally beneficial, the edge for wiping cotton 2 is placed between the outer peripheral face of ring-shaped clip 3 and housing 1, passes through ring-shaped clip 3
It is fixed on housing 1 and realizes dismountable structure, convenient dismounting and replacing, increases the service life.Above-mentioned ring-shaped clip 3 includes
First clip 31 and the second clip 32, the first clip 31 and the second clip 32 are centrosymmetric setting, the first clip
31 or second the one end of clip 32 stretch out to form snap fit 311,321, the second clip 32 or the first clip 31
On be provided with and form the neck 312,322 being engaged by clamping with snap fit 311,321, set on the outer peripheral face of the housing 1
There is the annular groove 17 being arranged for ring-shaped clip 3.First clip 31 and the second clip 32, which are harmonious, connects and composes ring-shaped clip
3, the clamping of neck 322 of the clip 32 of snap fit 311 and second of the first clip 31, the snap fit 321 of the second clip 32
Be connected, be connected firmly with the neck 311 of the first clip 31, dismounting is also convenient for, the setting of annular groove 17 be in order to avoid
The projection of ring-shaped clip 3 is arranged on the outer peripheral face of housing 1, can not only so improve hand-held comfortableness, and make profile
It is more attractive.Above-mentioned push rod 161 is provided with the outer peripheral face of drive end 163 prevents drive end 163 from entering housing 1
Interior limited shoulder rank 1611, first spring 13 and second spring 164 are middle diameter maximum respectively to both ends
The ellipticity being gradually reduced.The setting of limited shoulder rank 1611 is in order to avoid second spring 164 is excessively stretched, and destroys the
The elastic force of two springs 164, service life is influenceed, and water or each discharge of cleaning solution, the first bullet can be accurately controlled
Spring 13 and second spring 164 are the small structure broad in the middle in two, can make the first spring 13 and second spring 164 in quilt
Bending is unlikely to deform when compression, it is larger to bear the ability of pressure, high sensitivity, and abrasion is small, and elasticity lasts a long time.It is above-mentioned stifled
Lid 141 is made up of elastomeric material, and the middle part of blanking cover 141 is pressure buffer portion.Blanking cover 141 is made and entered by elastomeric material
The good airproof performance of liquid mouth 14, avoid overflowing, the setting of buffer part can alleviate in liquid storage cylinder 111 water or cleaning solution to blanking cover
141 pressure, blanking cover 141 is avoided to be disengaged with inlet 14, simple in construction, good sealing effect.
Claims (7)
1. a kind of blackboard eraser, including housing and wiping cotton, wipe the side that cotton is arranged on housing, it is characterised in that：In the housing
Installation cavity is provided with, is provided with push pedal in installation cavity, push pedal is vertically arranged with wiping cotton, the outer peripheral face of push pedal and installation cavity
Inner wall sealing is set, and the confined space that push pedal surrounds with installation cavity wall forms liquid storage cylinder, the outside of the push pedal and housing
Inwall between be provided with driving push pedal move in one direction so as to change the first spring of liquid storage cylinder size, push pedal edge
The length direction or width guiding movement of housing, the inlet connected with liquid storage cylinder, feed liquor are provided with the housing
Blanking cover is provided with mouthful, connects the through hole of liquid storage cylinder and wiping cotton, storage on the housing with being provided with the side of wiping cotton homonymy
The switch member closed or open through hole is provided with sap cavity.
2. the blackboard eraser according to claim 1, it is characterised in that：The switch member includes push rod and is covered in through hole
Port on capping, one end of push rod and capping are fixed or be wholely set, and the other end, which passes housing and is placed in outside housing, to be formed
Drive end, push rod can drive capping to move along its axis, and second spring, the second bullet are arranged with the outer peripheral face of the push rod
One end of spring connects with capping, and the inwall of the other end and housing connects.
3. the blackboard eraser according to claim 1 or 2, it is characterised in that：The through hole is located at the middle part of housing, pushes away
Plate opposition is arranged on the both sides of installation cavity and is symmetrical set, and switch member is between two push pedals, and two push pedals are respective the
Mutually drawn close under the driving of one spring.
4. the blackboard eraser according to claim 1 or 2, it is characterised in that：The side wiped cotton and be wrapped in housing
On, the edge for wiping cotton is set on the outer peripheral face of housing, and the fixed annular snap for wiping cotton edge is provided with the outer peripheral face of housing
Hoop, the shape of ring-shaped clip are adapted to the exterior contour of housing, are wiped cotton and are formed removable setting with housing.
5. the blackboard eraser according to claim 4, it is characterised in that：The ring-shaped clip includes the first clip and second
Clip, the first clip and the second clip are centrosymmetric setting, and the one end of the first clip or the second clip stretches out shape
Into snap fit, it is provided with the second clip or the first clip and forms the neck being engaged by clamping, the outer peripheral face of the housing with snap fit
On be provided with the annular groove being arranged for ring-shaped clip.
6. the blackboard eraser according to claim 2, it is characterised in that：The push rod is set on the outer peripheral face of drive end
The limited shoulder rank for preventing that drive end from entering in housing is equipped with, first spring and second spring are that middle diameter is maximum
The ellipticity being gradually reduced respectively to both ends.
7. the blackboard eraser according to claim 1 or 2, it is characterised in that：The blanking cover is made up of elastomeric material, blocks up
The middle part of lid is pressure buffer portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255867.0U CN206718828U (en) | 2017-03-16 | 2017-03-16 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255867.0U CN206718828U (en) | 2017-03-16 | 2017-03-16 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206718828U true CN206718828U (en) | 2017-12-08 |
Family
ID=60501998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720255867.0U Expired - Fee Related CN206718828U (en) | 2017-03-16 | 2017-03-16 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206718828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973464A (en) * | 2018-07-06 | 2018-12-11 | 六安微云电子科技有限公司 | A kind of erasing apparatus of electronic whiteboard |
-
2017
- 2017-03-16 CN CN201720255867.0U patent/CN206718828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973464A (en) * | 2018-07-06 | 2018-12-11 | 六安微云电子科技有限公司 | A kind of erasing apparatus of electronic whiteboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20190316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |