CN2241635Y - Water-writing blackboard for teaching purpose - Google Patents
Water-writing blackboard for teaching purpose Download PDFInfo
- Publication number
- CN2241635Y CN2241635Y CN 96225750 CN96225750U CN2241635Y CN 2241635 Y CN2241635 Y CN 2241635Y CN 96225750 CN96225750 CN 96225750 CN 96225750 U CN96225750 U CN 96225750U CN 2241635 Y CN2241635 Y CN 2241635Y
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- CN
- China
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- water
- blackboard
- radiator
- write
- contained
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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.)
- Expired - Fee Related
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Abstract
The utility model provides a water-writing blackboard for teaching purpose which is composed of a water writing blackboard and a radiator. The water writing blackboard is a triple composite board which is composed of a plastic pallet, a water absorbing and color displaying layer and a pervious finish coat. The radiator is composed of a sealed metallic shell, heat transfer oil which is stored in the metallic shell, heating resistance wires which are uniformly distributed, a corresponding power socket and a switch. The radiator can be used for vaporizing water absorbed by the water absorbing and color displaying layer to cause the showing words or pictures to disappear. The adoption of the water-writing blackboard for teaching purpose of the utility model can thoroughly avoid chalk dust harming teacher and student's health and protect the health of the teacher and the student.
Description
The utility model belongs to the school supply and stationery field, and particularly a kind of water is write blackboard for education.
Used blackboard for education is the plank of coating black at present, or the black waxy soil glass plate.The teacher writes, draws picture with chalk and carries out teaching on blackboard.The dust of chalk is a difficult problem that is perplexing the boundary that imparts knowledge to students to the physical impairment of Faculty and Students always.The imagination of the grey blackboard of various suctions does not all obtain the effect of anticipation, because all fundamentally do not eliminate the dust of chalk.
The purpose of this utility model provides a kind of water of being made up of frame, water-writing plate and radiator and writes blackboard for education, and water is write colour developing and replaced chalk, thereby has effected a radical cure the dust harzard of chalk.
Write blackboard for education according to water of the present utility model,, be contained in water in the frame and write blackboard and be contained in water and write the radiator of blackboard back and form by blackboard frame.
Write blackboard according to water of the present utility model and be made up of plastic bottom board, suction color layer and permeable finishing coat, the color of finishing coat can be white, grayish or sky-blue.
According to the utility model, radiator is by the metal shell of sealing, be contained in conduction oil and equally distributed resistive heater in this shell, the power switch that is contained in front side, frame base is formed with the external power supply jack that is contained in frame base downside, and resistive heater is connected with external power supply and power switch respectively.
Write blackboard for education according to water of the present utility model, its suction color layer is made by the acrylic resin that can keep long-time colour developing.
Adopt water of the present utility model to write blackboard for education, write on the blackboard finishing coat at water with water-color paintbrush and write, draw picture, water sees through finishing coat and penetrates in the suction color layer, and the color layer of having inhaled water is black, shows the word or the picture of black.These words or picture can keep long time, for example more than 45 minutes.After one is levied in the past, press power switch, the resistive heater evolution of heat, by conduction oil and metal shell, the heating water-writing plate evaporates moisture content rapidly, and colour developing disappears.Next class can be write again, uses repeatedly.Also can connect power supply any time, colour developing is disappeared at a class.
After long-term the use, finishing coat may be contaminated, reuses after can cleaning with washing agent.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 writes the blackboard for education front view for water of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
As shown in the figure, water of the present utility model is write blackboard for education and is made up of frame (2) and water-writing plate, and this water-writing plate writes blackboard (1) by water and radiator (6) is formed, and radiator (6) is contained in the back that water is write blackboard (1).
As shown in Figure 2, water is write the three-layer composite board of blackboard (1) for being made up of plastic bottom board (5), suction color layer (4) and permeable finishing coat (3).
As shown in Figure 2, radiator (6) by the sealing metal shell (11), be contained in conduction oil (7) and equally distributed resistive heater (8) in this metal shell (11), the external power supply jack (10) that is contained in the power switch (9) of frame (2) front side, base and is contained in frame (11) base downside is formed, and resistive heater (8) is connected with power switch (9) with external power supply jack (10) respectively.
In order to adapt to the special requirement of classroom instruction, suction color layer (9) Ying Youneng keeps the acrylic resin of long-time colour developing made.The color of finishing coat can be selected white, light gray or sky-blue tree acrylic acid water penetration film for use.
This water is write blackboard for education and be can be widely used in various types of schools, can thoroughly eradicate the dust harzard of chalk.
Claims (3)
1, a kind of water of being made up of frame (2) and water-writing plate is write blackboard for education, it is characterized in that described water-writing plate is write blackboard (1) by water and radiator (6) is formed, and radiator (6) is contained in the back that water is write blackboard (1),
1) water is write the three-layer composite board of blackboard (1) for being made up of plastic bottom board (5), suction color layer (4) and permeable finishing coat (3),
2) radiator (6) by the sealing metal shell (11), be contained in conduction oil (7) and equally distributed resistive heater (8) in this metal shell (11), the external power supply jack (10) that is contained in the power switch (9) of frame (2) front side, base and is contained in frame (11) base downside is formed, and resistive heater (8) is connected with power switch (9) with external power supply jack (10) respectively.
2, write blackboard for education according to the water of claim 1, it is characterized in that described suction color layer (4) is made by the acrylic resin that can keep long-time colour developing.
3, write blackboard for education according to the water of claim 1, it is characterized in that the color of described permeable finishing coat can be selected white, light gray or sky-blue for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225750 CN2241635Y (en) | 1996-03-29 | 1996-03-29 | Water-writing blackboard for teaching purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96225750 CN2241635Y (en) | 1996-03-29 | 1996-03-29 | Water-writing blackboard for teaching purpose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2241635Y true CN2241635Y (en) | 1996-12-04 |
Family
ID=33904344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96225750 Expired - Fee Related CN2241635Y (en) | 1996-03-29 | 1996-03-29 | Water-writing blackboard for teaching purpose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2241635Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408353C (en) * | 2006-04-13 | 2008-08-06 | 刘志宇 | Multifunctional steam type writing and painting exerciser |
| CN101468642B (en) * | 2007-12-29 | 2011-04-20 | 中华人民共和国绥芬河出入境检验检疫局 | Apparatus and method for sterilizing vehicle wheel |
| CN107119449A (en) * | 2017-05-23 | 2017-09-01 | 西洛次旦 | Water writes drills to improve one's handwriting spool |
| CN108284684A (en) * | 2018-01-05 | 2018-07-17 | 四川省达川中学 | A kind of rapid-curing cutback water-washing blackboard |
| CN108312744A (en) * | 2018-05-03 | 2018-07-24 | 马运输 | A kind of environmental protection Wiping-free blackboard |
| CN112918166A (en) * | 2021-01-29 | 2021-06-08 | 山东中医药高等专科学校 | Chinese language and literature auxiliary teaching device |
-
1996
- 1996-03-29 CN CN 96225750 patent/CN2241635Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408353C (en) * | 2006-04-13 | 2008-08-06 | 刘志宇 | Multifunctional steam type writing and painting exerciser |
| CN101468642B (en) * | 2007-12-29 | 2011-04-20 | 中华人民共和国绥芬河出入境检验检疫局 | Apparatus and method for sterilizing vehicle wheel |
| CN107119449A (en) * | 2017-05-23 | 2017-09-01 | 西洛次旦 | Water writes drills to improve one's handwriting spool |
| CN108284684A (en) * | 2018-01-05 | 2018-07-17 | 四川省达川中学 | A kind of rapid-curing cutback water-washing blackboard |
| CN108312744A (en) * | 2018-05-03 | 2018-07-24 | 马运输 | A kind of environmental protection Wiping-free blackboard |
| CN112918166A (en) * | 2021-01-29 | 2021-06-08 | 山东中医药高等专科学校 | Chinese language and literature auxiliary teaching device |
| CN112918166B (en) * | 2021-01-29 | 2022-05-17 | 山东中医药高等专科学校 | Chinese language and literature auxiliary teaching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| MM1K | Cease caused by non payment of annual fee |