CN201245017Y - Polyurethane foam plastic blackboard eraser for teaching - Google Patents
Polyurethane foam plastic blackboard eraser for teaching Download PDFInfo
- Publication number
- CN201245017Y CN201245017Y CNU2008201325693U CN200820132569U CN201245017Y CN 201245017 Y CN201245017 Y CN 201245017Y CN U2008201325693 U CNU2008201325693 U CN U2008201325693U CN 200820132569 U CN200820132569 U CN 200820132569U CN 201245017 Y CN201245017 Y CN 201245017Y
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- CN
- China
- Prior art keywords
- polyurethane foam
- blackboard eraser
- plate body
- face
- foam plastics
- 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 relates to an urethane foam teaching board eraser which comprises a board body and a surface erasing body which are connected through a connecting body; the connecting body and the board body are in detachable connection; the connecting body and the surface erasing body are glued by high strength glue; and the surface erasing body is made of urethane foam. The utility model has the advantages of simple structure, convenient use, clean erasing, comfortable use, little dust, durability and easy repair, and is beneficial for popularization and application.
Description
One, technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of polyurethane foam plastics teaching blackboard eraser.
Two, background technology
At present, the used blackboard eraser of people is normal style: the rectangle plank is inlayed a snag, and when erasing the board, chalk dust flies upward everywhere, and particularly blackboard eraser all is xerotripsis, after clipping certain the time, has often just wiped not clean blackboard.At this moment, can be wiped into a lot of white powder trace by blackboard eraser on the blackboard, cause the black white contrast of blackboard not enough, the writing on the blackboard that teacher writes out is difficult for being recognized by the student, has both influenced the overall appearance of blackboard, influences student's results of learning again.And wipe chalk dust down and directly enter the oral cavity especially, the healthy of academics and students damaged to some extent.Though many innovation and creation at blackboard eraser are also arranged in recent years, all at reclaiming chalk dust, the technical scheme that can solve the blackboard eraser xerotripsis is less, and the wet rag with band water in teaching practice replaces the more of blackboard eraser.
In a word, the existing general material of blackboard eraser is not easy to wipe clean based on fur and cloth in use, gets and wipes very trouble repeatedly, and dust disperses everywhere in the process of wiping, has a strong impact on teachers and students' health, and as easy as rolling off a log wearing and tearing, and the cost that gets off for a long time is quite high.
Three, utility model content
The purpose of this utility model is that proposition is a kind of simple in structure, easy to use, the polyurethane foam plastics teaching blackboard eraser that can address the above problem.
Content of the present utility model is: a kind of polyurethane foam plastics teaching blackboard eraser, comprise plate body, wiping face body, said plate body is connected by connector with the face of wiping body, between described connector and the plate body for removably connecting, connector and wipe adopts between the face body that high strength is gluing to be connect, and described wiping face body is a polyurethane foam plastics.
Described plate body is a polypropylene material.
Described plate body side is provided with the gripping pit, and described plate body corner is a cambered surface.
The working face of described wiping face body is provided with groove.
Described wiping face body is the imported polyurethane foamed plastics.
The beneficial effects of the utility model
1, simple in structure, realize easily
Whole blackboard eraser is by plate body, and the wiping face body of connector and polyurethane foam plastics is formed, and connects by gluing between connector and the face of the wiping body, and for removably connecting, such as screw connected, simple in structure, fabrication and installation were simple and easy between connector and the plate body.
2, use is comfortable, and is convenient
Described plate body side is provided with the gripping pit, described plate body corner is a cambered surface, has improved the comfort level when gripping, and is difficult for skidding when using, and slips out of the hand.
That 3, wipes is clean, and dust is few
Described wiping face body is a polyurethane foam plastics, cooperates the corresponding cleaning agent to use, and blackboard eraser is got very clean, and can reduce most dust, and wiping the groove that is provided with on the working face of face body in addition also has certain help to this.
4, durable, easily repair, reduce use cost
Because polyurethane foam plastics adopts imported material, and is very solid, wear-resisting, and will be designed to removably connect between connector and the plate body, after the damage of the face of wiping body, can change easily, reduced the financial burden of applying unit.
Four, description of drawings
Fig. 1 is the perspective view of this teaching blackboard eraser
Fig. 2 is the structural representation of facing of this teaching blackboard eraser
Fig. 3 is the left TV structure schematic diagram of Fig. 2
Fig. 4 is the A-A cutaway view of Fig. 2
Five, the specific embodiment
Embodiment one: referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of polyurethane foam plastics teaching blackboard eraser among the figure, comprise plate body 1, wiping face body 3, described plate body 1 with wipe face body 3 and be connected by connector 2, between described connector 2 and the plate body 1 for removably connecting the connected mode such as bolt and nail 7, adopt high strength glue 8 bonding between connector 2 and the face of the wiping body 3, described wiping face body 3 is a polyurethane foam plastics; Described plate body 1 is a polypropylene material; Described plate body 1 side is provided with and grips pit 5, and described plate body corner is a cambered surface 6; The working face of described wiping face body 3 is provided with groove 4.
Poly-ammonia purport foamed plastics eraser for teaching is compared with existing teaching aid: aesthetic in appearance, feel is comfortable, the user Just, be equipped with the Special cleaning agent and wipe easily, and nontoxic, really play dustless environment protecting, even wiping face Damage only needs more to renew wiping face and continues to use, and greatly reduces the consumption cost.
Claims (5)
1, a kind of polyurethane foam plastics teaching blackboard eraser, comprise plate body, wiping face body, it is characterized in that: said plate body is connected by connector with the face of wiping body, between described connector and the plate body for removably connecting, connector and wipe adopts between the face body that high strength is gluing to be connect, and described wiping face body is a polyurethane foam plastics.
2, polyurethane foam plastics teaching blackboard eraser according to claim 1, it is characterized in that: described plate body is a polypropylene material.
3, polyurethane foam plastics teaching blackboard eraser according to claim 1, it is characterized in that: described plate body side is provided with the gripping pit, and described plate body corner is a cambered surface.
4, polyurethane foam plastics teaching blackboard eraser according to claim 1, it is characterized in that: the working face of described wiping face body is provided with groove, and shape becomes rectangular recess.
5, polyurethane foam plastics teaching blackboard eraser according to claim 1, it is characterized in that: described wiping face body is the imported polyurethane foamed plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201325693U CN201245017Y (en) | 2008-08-14 | 2008-08-14 | Polyurethane foam plastic blackboard eraser for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201325693U CN201245017Y (en) | 2008-08-14 | 2008-08-14 | Polyurethane foam plastic blackboard eraser for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201245017Y true CN201245017Y (en) | 2009-05-27 |
Family
ID=40728832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201325693U Expired - Fee Related CN201245017Y (en) | 2008-08-14 | 2008-08-14 | Polyurethane foam plastic blackboard eraser for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201245017Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466976A (en) * | 2015-08-21 | 2017-03-01 | 上海市格致中学 | Blackboard eraser |
-
2008
- 2008-08-14 CN CNU2008201325693U patent/CN201245017Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466976A (en) * | 2015-08-21 | 2017-03-01 | 上海市格致中学 | Blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20130814 |