CN203004755U - Double-layer cleaning-free blackboard - Google Patents
Double-layer cleaning-free blackboard Download PDFInfo
- Publication number
- CN203004755U CN203004755U CN 201220672467 CN201220672467U CN203004755U CN 203004755 U CN203004755 U CN 203004755U CN 201220672467 CN201220672467 CN 201220672467 CN 201220672467 U CN201220672467 U CN 201220672467U CN 203004755 U CN203004755 U CN 203004755U
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- blackboard
- double
- left end
- support
- steel wire
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- Expired - Fee Related
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Abstract
The utility model relates to a double-layer cleaning-free blackboard. The double-layer cleaning-free blackboard comprises a supporting frame, a first blackboard, a second blackboard, a dust box, pulleys, steel wire ropes, and a blackboard eraser, wherein the dust box is arranged at the lower end of the supporting frame, the pulleys are arranged at the left end of the supporting frame and the right end of the supporting frame, and the front end of the support is provided with the first blackboard and the second blackboard. The number of the pulleys is four, and the four pulleys are symmetrically arranged at the left end of the supporting frame and the right end of the supporting frame. The number of the steel wire ropes is two, and the two steel wire ropes are respectively sleeved on the pulleys which are arranged at the left end of the supporting frame and the right end of the supporting frame. The double-layer cleaning-free blackboard not only can facilitate teaching and expand writing areas of a teacher, but also is free of cleaning. Moreover, the double-layer cleaning-free blackboard is simple in structure, convenient to use, and wide in application.
Description
Technical field
The utility model relates to a kind of blackboard, especially a kind of double-deck Wiping-free blackboard.
Background technology
Blackboard is not the plate face that refers in particular to black, say on traditional sense be it one can repeated writing the plane, the plate face is hard, and is multiplex in teaching.The plate face mostly is black, and is blackish green, white.Existing blackboard is mainly take green plate plate face as main, and green plate plate face is blackish green, uses chalk-writing, does not stimulate people's eyes, is conducive to the protection of eyesight.Green plate plate face mostly is curved surface, prevents reflectively, can make the student who is sitting in each corner also can see the writing on the blackboard writing clearly, is applicable to most classroom.
Blackboard is divided into support portable plate, push-and-pull lifter plate, magnet board, Multifunctional combined board etc. according to structure: the support portable plate, blackboard is equipped with various supports, and conveniently moving, purposes is wide; The push-and-pull lifter plate can be write conveniently along the multidirectional movement of certain tracks, is beneficial to and watches; Magnet board at the inner lining of blackboard with the magnetic stripe bar magnet, or at the surface attachment magnetic-particle.Can follow closely with magnetic during use, magnetic patch etc. fixed small-sized educational aid or the convenient displaying of picture; Multifunctional combined board, interactive electric whiteboard, band curtain projection plate, staff music blackboard, it is the combination of traditional blackboard and modern science and technology, traditional blackboard is equipped with electronic whiteboard, projector, computer, and teaching software, hardware have perfectly replenished the defective in the conventional teaching accordingly, allow the modernizing teaching technology really walk to enter the classroom, and are the inexorable trend of current development of educational cause.But existing blackboard-cleaning letter written with chalk is inconvenient, and simultaneously when blackboard wiping, chalk dust can fly in people's nostril harmful, also have many blackboards to be provided with automatic cleaner, but great majority all needs motor, can not energy savings.
The utility model content
In order to overcome the deficiency of above-mentioned existing blackboard, the purpose of this utility model is to provide a kind of double-deck Wiping-free blackboard, and it adopts and is provided with the dust box in the lower end of support, and left end and right-hand member are provided with pulley, and front end is provided with the first blackboard and the second blackboard.
In order to realize that the technical scheme that the purpose of this utility model adopts is: a kind of double-deck Wiping-free blackboard is characterized in that: it is made of support, the first blackboard, the second blackboard, dust box, pulley, steel wire rope, blackboard eraser; The lower end of described support is provided with the dust box, and left end and right-hand member are provided with pulley, and front end is provided with the first blackboard and the second blackboard; Described pulley is made as four, is symmetrically distributed in two ends, support left and right; Described steel wire rope is made as two, is enclosed within respectively on the pulley mountain of support left end and right-hand member.
The beneficial effects of the utility model are: it can conveniently be imparted knowledge to students, and enlarges teacher's write area, again can be without the sassafras blackboard, and simple in structure, easy to use, widely applicable.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Fig. 1 is the utility model structure chart
Fig. 2 is the utility model cutaway view
Fig. 3 is the utility model partial sectional view
1-support, 2-the first blackboard, 3-dust box, 4-the second blackboard, 5-blackboard eraser, 6-steel wire rope, 7-pulley in figure.
The specific embodiment
In Fig. 1, Fig. 2, the first embodiment shown in Figure 3, a kind of double-deck Wiping-free blackboard is characterized in that: it is made of support, the first blackboard, the second blackboard, dust box, pulley, steel wire rope, blackboard eraser; The lower end of described support is provided with the dust box, and left end and right-hand member are provided with pulley, and front end is provided with the first blackboard and the second blackboard; Described pulley is made as four, is symmetrically distributed in two ends, support left and right; Described steel wire rope is made as two, is enclosed within respectively on the pulley mountain of support left end and right-hand member.
In Fig. 1, the second embodiment shown in Figure 3, described support is fixed on metope, and left end and right-hand member are provided with groove, is used for supporting the first blackboard and the second blackboard; Described pulley is arranged in the groove of support left end and right-hand member, is connected with left end or the right-hand member of support by rotating shaft, be used for providing track to steel wire rope, and the friction when reducing steel wire rope and moving; Described steel wire rope is used for the first blackboard and the second blackboard are linked together; Left end and the right-hand member of described the first blackboard and the second blackboard are fixed on steel wire rope by rotating shaft respectively, are used for facilitating teacher to impart knowledge to students; Described blackboard eraser is made as four, is separately positioned on the first blackboard and the second blackboard top and bottom of rear end face separately, and length is identical with the length of the first blackboard and the second blackboard, is used for the letter written with chalk of wiping the first blackboard and the second blackboard front end face; Described dust box is square shape, and the upper end is provided with groove, is used for collecting chalk dust.
at Fig. 1, Fig. 2, in the 3rd embodiment shown in Figure 3, described steel wire rope, pulley, the first blackboard and the second blackboard form a reversing arrangement, when the first blackboard during in the second blackboard front, move the first blackboard downwards or upward, the second blackboard moves under the drive of steel wire rope simultaneously up or down, if the first blackboard is shifted onto topmost or the lower end, the second blackboard will be bottom or the upper end, promote backward again the first blackboard this moment, the first blackboard will move to the back of the second blackboard, when the second blackboard during in the first blackboard front, move the second blackboard downwards or upward, the first blackboard moves under the drive of steel wire rope simultaneously up or down, if the second blackboard is shifted onto topmost or the lower end, the first blackboard will be bottom or the upper end, promote backward again the second blackboard this moment, the second blackboard will move to the back of the first blackboard, when the first blackboard or the second blackboard move up and down, the letter written with chalk that blackboard eraser falls to contact with automatic erasing.
When using the utility model, at first write letter written with chalk on the first blackboard, then in the time will erasing the board, the first blackboard is shifted onto bottom or the upper end, changed the front and back of the first blackboard and the second blackboard, blackboard eraser automatic erasing letter written with chalk, preferably allow steel wire rope rotate in a direction when using the utility model, be conducive to like this cleaner of blackboard eraser, simple in structure, easy to use.
Claims (3)
1. double-deck Wiping-free blackboard, it is characterized in that: it is made of support, the first blackboard, the second blackboard, dust box, pulley, steel wire rope, blackboard eraser; The lower end of described support is provided with the dust box, and left end and right-hand member are provided with pulley, and front end is provided with the first blackboard and the second blackboard; Described pulley is made as four, is symmetrically distributed in two ends, support left and right; Described steel wire rope is made as two, is enclosed within respectively on the pulley mountain of support left end and right-hand member.
2. double-deck Wiping-free blackboard according to claim 1, it is characterized in that: described support is fixed on metope, and left end and right-hand member are provided with groove; Left end and the right-hand member of described the first blackboard and the second blackboard are fixed on steel wire rope by rotating shaft respectively; Described blackboard eraser is made as four, is separately positioned on the first blackboard and the second blackboard top and bottom of rear end face separately, and length is identical with the length of the first blackboard and the second blackboard; Described dust box is square shape, and the upper end is provided with groove.
3. double-deck Wiping-free blackboard according to claim 1 and 2, it is characterized in that: described pulley is arranged in the groove of support left end and right-hand member, is connected with left end or the right-hand member of support by rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672467 CN203004755U (en) | 2012-12-07 | 2012-12-07 | Double-layer cleaning-free blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672467 CN203004755U (en) | 2012-12-07 | 2012-12-07 | Double-layer cleaning-free blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203004755U true CN203004755U (en) | 2013-06-19 |
Family
ID=48596380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220672467 Expired - Fee Related CN203004755U (en) | 2012-12-07 | 2012-12-07 | Double-layer cleaning-free blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203004755U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139643A (en) * | 2014-08-04 | 2014-11-12 | 石家庄科达文教用品有限公司 | Combined multimedia writing board |
| CN112735301A (en) * | 2021-01-29 | 2021-04-30 | 高台县巷道镇卫生院 | Public health is with nursing knowledge show propaganda device |
-
2012
- 2012-12-07 CN CN 201220672467 patent/CN203004755U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104139643A (en) * | 2014-08-04 | 2014-11-12 | 石家庄科达文教用品有限公司 | Combined multimedia writing board |
| CN104139643B (en) * | 2014-08-04 | 2016-05-11 | 石家庄科达文教用品有限公司 | Combined type multimedia clipboard |
| CN112735301A (en) * | 2021-01-29 | 2021-04-30 | 高台县巷道镇卫生院 | Public health is with nursing knowledge show propaganda device |
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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 |
Granted publication date: 20130619 Termination date: 20141207 |
|
| EXPY | Termination of patent right or utility model |