CN204367723U - A kind of blackboard eraser - Google Patents
A kind of blackboard eraser Download PDFInfo
- Publication number
- CN204367723U CN204367723U CN201420848280.7U CN201420848280U CN204367723U CN 204367723 U CN204367723 U CN 204367723U CN 201420848280 U CN201420848280 U CN 201420848280U CN 204367723 U CN204367723 U CN 204367723U
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- Prior art keywords
- blackboard eraser
- sponge
- lid
- handle
- hollow body
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Abstract
The utility model relates to a kind of multimedia teaching apparatus, specifically discloses a kind of blackboard eraser, comprises blackboard eraser handle, blackboard eraser lid and board wiper plane, blackboard eraser handle and blackboard eraser lid are connected by screw, board wiper plane is adhered to blackboard eraser lid, and blackboard eraser upper handle portion is provided with hole, and hole is embedded with magnet; The two sides of blackboard eraser handle are equipped with concave face, and described concave face is arc-shaped curved surface; Described handle comprises two identical hollow body, is symmetrically distributed in base, connects in the middle of two blocks with curved panel; Described board wiper plane is sponge or cloth bag sponge, and sponge bottom surface is provided with groove, is rectangle; Described groove is multiple, is spacedly distributed; Described sponge is bonding with blackboard eraser lid, and described cloth bag sponge is bonding with blackboard eraser lid by velcro, and cloth bag sponge bottom surface is the multiple curved surface of continuous print, and cloth is flannelette.The utility model reasonable in design, reduces dust from flying, and production and processing is quick, and impart knowledge to students easy to use, easy maintenance update, integrated cost is cheap, and practical function is good.
Description
Technical field
The utility model relates to a kind of multimedia teaching apparatus.
Background technology
Current teaching, teachers are traditional chalk-writing accustomed to using always.Reason is, uses calcareous chalk-writing, comfortable feel, and person's handwriting is well-off full, and the vigour of style in writing is respond well.But when the person's handwriting with the calcareous chalk of traditional blackboard eraser wiping, dust from flying, had both affected teachers and students healthy, had caused environmental pollution again.But existing Environmentally friendly blackboard eraser miscellaneous, complex structure, operational failure rate is high, safeguards inconvenient.
Documents 1 Chinese patent CN201587247 discloses a kind of sponge blackboard eraser, it is characterized in that: it comprises a wiping board, and a face of this wiping board is fixed together by one deck double faced adhesive tape and one piece of sponge, and another face of wiping board is provided with a handles.Documents 2 Chinese patent CN203078108 discloses a kind of blackboard eraser, it is characterized in that, comprise base, handle, sponge cloth envelope body and nylon buckles, be provided with handle at submounts, below base, be provided with sponge cloth envelope body, sponge cloth envelope body is fixed on base by nylon buckles.Documents 3 Chinese patent CN203004827 discloses a kind of blackboard eraser, what comprise a confession user housing gripped and the flannelette composition be fixed on housing wipes body, it is characterized in that, the described body side adjacent with housing that wipe adopts glue to fix bonding to be provided with a cotton layer, described cotton layer is provided with a circle VELCRO and hooks face part, on described housing, corresponding VELCRO hooks face part and is provided with a circle VELCRO hair side part, described housing and wipe body and hook face part by VELCRO and VELCRO hair side part is fixedly linked.Wherein the blackboard eraser of documents 1 and documents 2 is equipped with handle, but structure is simple, be arch bridge like, the force direction holding blackboard eraser is in use different from by blackboard eraser wiping force direction, thus require great effort and wrist fatiguability, be not easy to operation and use, and when using when getting wet, hand holds instability to handle, easily skids.Disclosed in documents 3, blackboard eraser does not arrange handle, needs to rely on holding to housing during use, and housing due to area large, palm needs larger stretching, extension, holds effort; Finger is short with the distance of board wiper plane, easily abrades finger.Although the structure of above-mentioned three kinds of blackboard erasers is simple, insecure simultaneously, as nylon buckles, be unsuitable for industrial production.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of blackboard eraser, has structure simple, and operation and maintenance is convenient, and result of use is good, the advantage that manufacturing cost is low.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of blackboard eraser, comprise blackboard eraser handle, blackboard eraser lid and board wiper plane, blackboard eraser handle and blackboard eraser lid are connected by screw, board wiper plane is adhered to blackboard eraser lid, described blackboard eraser handle comprises two identical hollow body, and described two blocks are symmetrically distributed on base, connects in the middle of described two blocks with curved panel; The top of described hollow body is provided with hole, and hole is embedded with magnet; The side of described hollow body is provided with concave face.Blackboard eraser is embedded with the convenient not used time placement of magnet, ready access upon use, quickness and high efficiency; When two hollow body use as blackboard eraser hand hold position, large with the contact area of hand, hold stable, have an effect when being conducive to wiping, improve wiping effect; Curved panel supports two hollow body, makes the overall uniform force of blackboard eraser, stabilized structure; Block and curved panel inside are hollow structure simultaneously, lightweight, hold laborsaving, low cost of manufacture; When the concave face of hollow body side is for holding finger storage, make hand positions natural, laborsaving, during use hand not easily stiff, turn sour, be conducive to blackboard eraser and be held firmly.
Further, described hole is positioned at the center upper portion of described hollow body; Described concave face is symmetrical, and described concave face is arc-shaped curved surface.Described hole is positioned at central authorities, makes to be easy to during magnet adsorption blackboard eraser is balanced by absorption affinity.Concave face is that arc-shaped curved surface increases finger and the contact area of blackboard eraser, does not press against hand simultaneously.
One as the technical program is improved, and described board wiper plane is sponge block, and sponge block is bonding with blackboard eraser lid by glue, and sponge block bottom surface is provided with groove.Blackboard eraser, when wiping person's handwriting, first with sponge block water suction, can receive dust in sponge block groove, alleviate flying upward of dust; Sponge block water suction rear surface frictional resistance is little, and wiping force is little and not hard, and without wiping noise, wiping is slided smooth and easy.
Further, described groove is rectangle; Described groove is multiple, is spacedly distributed.
Preferably, described rectangular recess end face width is 1mm ~ 5mm, and the degree of depth is 3mm ~ 15mm, and flute pitch is 5mm ~ 30mm.
Another kind as the technical program improves, it is characterized in that described board wiper plane is cloth bag sponge, described cloth bag sponge comprises end to end cloth, and the sponge of wrapping up in the middle of described cloth, the one side of described cloth is affixed on the hook strip of velcro, and suede band and the blackboard eraser lid of described velcro are pasted.The contact area of cloth cover and writing is larger, when being applicable to xerotripsis, more effectively can remove writing; Sponge is used for resiliency supported, and sponge also can get wet, and effectively can receive the dust that cloth cover wiping goes out, and suppresses dust from flying.
Further, the both sides of described cloth bag sponge bottom surface are concave curvatures, and the middle part of described cloth bag sponge bottom surface is convex surface.Concave curvatures is conducive to the collection of the dust that wiping goes out, and weakens airborne dust.
Further, the cloth cover of described cloth bag sponge is cotton flannel surface.
The beneficial effect adopting technique scheme to produce is: the utility model structure is simple, reasonable in design, enhances the control of hand to blackboard eraser, gesture nature indefatigability when holding, and wiping process hand not easily skids; Spongy surface blackboard eraser is applicable to the wet rubbing that gets wet, and cloth cover blackboard eraser both went for the wet rubbing that gets wet, and also goes for not getting wet xerotripsis, can effectively suppress dust from flying in wiping process, reduces dust to the impact of people; Meanwhile, operation and maintenance is convenient, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the structural representation of another kind of embodiment of the present utility model;
Fig. 4 is the front view of Fig. 3;
1, hollow body; 2, blackboard eraser lid; 3, hole; 4, curved panel; 5, base; 6, concave face; 7, velcro; 8, cloth bag sponge; 9, sponge block; 10, groove;
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Detailed description of the invention
Inconvenience is held in order to solve existing blackboard eraser, the technical problem of cleaning effect difference, the utility model discloses a kind of blackboard eraser, by adopting the technological means of hollow handle and the board wiper plane with sponge, can effectively suppress dust from flying in wiping process, operation and maintenance is convenient.In order to clearly the utility model can be described, provide following three kinds of detailed description of the invention:
Embodiment 1
A kind of blackboard eraser (see Fig. 3), comprise blackboard eraser handle, blackboard eraser lid 2 and board wiper plane, described blackboard eraser handle comprises two identical hollow body 1, and described two blocks 1 are symmetrically distributed on base 5, connects in the middle of two blocks 1 with curved panel 4; The top of each block 1 is provided with a hole 3, and side is provided with concave face 6.The block 1 of described blackboard eraser handle, base 5 and curved panel 4 are integrated design, and blackboard eraser lid 2 uses Mold Making, ABS injection moulding, one-shot forming.The hole 3 made is embedded in magnet, makes firmly bonding.Blackboard eraser lid 2 is connected with the base 5 of handle by screw.Described board wiper plane is sponge block 9, and sponge block 9 is bonding with blackboard eraser lid 2 by glue, and sponge block 9 bottom surface is provided with rectangular recess 10, and described rectangular recess 10 end face width is 1mm, and the degree of depth is 3mm, and between groove 10, spacing is 5mm.
Blackboard eraser, when wiping person's handwriting, first to absorb water erasing characters again with sponge block 9, and the water in sponge block 9 can adsorption of dust, eliminates the phenomenon of dust from flying; The sponge block 9 rear surface frictional resistance that absorbs water is little, and wiping force is little and hard, and without wiping noise, wiping slip is smooth and easy.
Described hole 3 is positioned at the center upper portion of described hollow body 1; Described concave face 6 is symmetrical, and described concave face 6 is arc-shaped curved surface.Described hole 3 is positioned at central authorities, makes to be easy to during magnet adsorption blackboard eraser is balanced by absorption affinity.Concave face 6 increases finger and the contact area of blackboard eraser for arc-shaped curved surface, does not press against hand simultaneously.
Described blackboard eraser is embedded with the convenient not used time placement of magnet, ready access upon use, quickness and high efficiency; When two hollow body 1 use as blackboard eraser hand hold position, large with the contact area of hand, hold stable, have an effect when being conducive to wiping, improve wiping effect; Curved panel 4 supports two hollow body 1, makes the overall uniform force of blackboard eraser, stabilized structure; Block 1 and curved panel 4 inside are hollow structure simultaneously, lightweight, hold laborsaving, save materials simultaneously, low cost of manufacture; When the concave face 6 of hollow body 1 side is for holding finger storage, make hand positions natural, laborsaving, during use hand not easily stiff, turn sour, be conducive to blackboard eraser and be held firmly.
Embodiment 2
A kind of blackboard eraser (see Fig. 3), comprise blackboard eraser handle, blackboard eraser lid 2 and board wiper plane, board wiper plane is the sponge block 9 with rectangular recess 10, and rectangular recess 10 end face width is 5mm, and the degree of depth is 15mm, and groove 10 spacing is 30mm, and all the other are with embodiment 1.
Embodiment 3
A kind of blackboard eraser (see Fig. 1), comprise blackboard eraser handle, blackboard eraser lid 2 and board wiper plane, described blackboard eraser handle comprises two identical hollow body 1, and described two blocks 1 are symmetrically distributed on base 5, connects in the middle of two blocks 1 with curved panel 4; The top of each block 1 is provided with a hole 3, and side is provided with concave face 6.The block 1 of described blackboard eraser handle, base 5 and curved panel 4 are integrated design, and blackboard eraser lid 2 uses Mold Making, ABS injection moulding, one-shot forming.The hole 3 made is embedded in magnet, makes firmly bonding.Blackboard eraser lid 2 is connected with the base 5 of handle by screw.Board wiper plane is cloth bag sponge 8, and described cloth bag sponge 8 comprises the cloth that head and the tail sew up mutually, and the sponge thin slice wrapped up in the middle of described cloth, and the one side of described cloth is affixed on the hook strip of velcro 7, and suede band and the blackboard eraser lid 2 of described velcro 7 are pasted.The contact area of cloth cover and writing is larger, when being applicable to xerotripsis, more effectively can remove writing; Sponge thin slice is used for resiliency supported, and sponge thin slice also can get wet, and effectively can receive the dust that cloth cover wiping goes out, and suppresses dust from flying.
The both sides of described sponge thin slice bottom surface are concave curvatures, and the middle part of described sponge thin slice bottom surface is convex surface.Concave curvatures is conducive to the collection of the dust that wiping goes out, and weakens airborne dust.
The cloth cover of described cloth bag sponge is cotton flannel surface.
Old cotton flannel surface is directly removed, and namely replaceablely sticks new cotton flannel surface, easy and simple to handle.Old cotton flannel surface easy to clean, reusable, economize on resources.
Claims (8)
1. a blackboard eraser, comprise blackboard eraser handle, blackboard eraser lid (2) and board wiper plane, blackboard eraser handle and blackboard eraser lid (2) are connected by screw, board wiper plane is adhered to blackboard eraser lid (2), it is characterized in that: described blackboard eraser handle comprises two identical hollow body (1), described two hollow body (1) are symmetrically distributed on base (5), connect in the middle of described two hollow body (1) with curved panel (4); The top of described hollow body (1) is provided with hole (3), and described hole (3) are embedded with magnet; The side of described hollow body (1) is provided with concave face (6).
2. a kind of blackboard eraser according to claim 1, is characterized in that described hole (3) is positioned at the center upper portion of described hollow body (1); Described concave face (6) is symmetrical, and described concave face (6) is arc-shaped curved surface.
3. a kind of blackboard eraser according to claim 1, it is characterized in that described board wiper plane is sponge block (9), sponge block (9) is bonding with blackboard eraser lid (2) by glue, and sponge block (9) bottom surface is provided with groove (10).
4. a kind of blackboard eraser according to claim 3, is characterized in that described groove (10) is rectangle; Described groove (10), for multiple, is spacedly distributed.
5. a kind of blackboard eraser according to claim 4, it is characterized in that described rectangular recess (10) end face width is 1mm ~ 5mm, the degree of depth is 3mm ~ 15mm, and groove (10) spacing is 5mm ~ 30mm.
6. a kind of blackboard eraser according to claim 1, it is characterized in that described board wiper plane is cloth bag sponge (8), the one side of described cloth is affixed on the hook strip of velcro (7), and suede band and the blackboard eraser lid (2) of described velcro (7) are pasted.
7. a kind of blackboard eraser according to claim 6, it is characterized in that the both sides of described cloth bag sponge (8) bottom surface are concave curvatures, the middle part of described cloth bag sponge (8) bottom surface is convex surface.
8. a kind of blackboard eraser according to claim 6, is characterized in that the cloth cover of described cloth bag sponge (8) is cotton flannel surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420848280.7U CN204367723U (en) | 2014-12-29 | 2014-12-29 | A kind of blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420848280.7U CN204367723U (en) | 2014-12-29 | 2014-12-29 | A kind of blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204367723U true CN204367723U (en) | 2015-06-03 |
Family
ID=53323968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420848280.7U Expired - Fee Related CN204367723U (en) | 2014-12-29 | 2014-12-29 | A kind of blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204367723U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216515A (en) * | 2015-10-23 | 2016-01-06 | 石家庄科达文教用品有限公司 | A kind of scraper-type sponge blackboard eraser |
| CN107415545A (en) * | 2017-07-28 | 2017-12-01 | 安徽信息工程学院 | A kind of wiping blackboard structure |
| CN112046179A (en) * | 2020-09-10 | 2020-12-08 | 焦作大学 | Blackboard writing wiping equipment capable of automatically positioning area for teaching rod controller |
-
2014
- 2014-12-29 CN CN201420848280.7U patent/CN204367723U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216515A (en) * | 2015-10-23 | 2016-01-06 | 石家庄科达文教用品有限公司 | A kind of scraper-type sponge blackboard eraser |
| CN107415545A (en) * | 2017-07-28 | 2017-12-01 | 安徽信息工程学院 | A kind of wiping blackboard structure |
| CN112046179A (en) * | 2020-09-10 | 2020-12-08 | 焦作大学 | Blackboard writing wiping equipment capable of automatically positioning area for teaching rod controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20201229 |