CN204077160U - Picture mosaic blackboard - Google Patents
Picture mosaic blackboard Download PDFInfo
- Publication number
- CN204077160U CN204077160U CN201420338698.3U CN201420338698U CN204077160U CN 204077160 U CN204077160 U CN 204077160U CN 201420338698 U CN201420338698 U CN 201420338698U CN 204077160 U CN204077160 U CN 204077160U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- guide rail
- bearing
- small
- distance
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
Picture mosaic blackboard belongs to teaching aid, particularly relates to a kind of blackboard.Feature is that three pieces of small blackboards be made up of plate face and bearing established by described guide rail, and plate face is fixing in the holder, and the bearing of band pulley is placed in guide rail; Establish two unidirectional cards along on the wall of guide rail horizontal center line, the distance of two unidirectional cards is less than the width of small blackboard, when small blackboard is by when being moved to upper, prevents small blackboard from falling; Guide rail also establishes slowing device.Advantage is novel, and structure letter is gathered, rationally; Break moving up and down of blackboard, realize moving up and down, effectively utilize space, improve service efficiency; Four pieces of blackboards become three pieces, remove one piece of blackboard, save material, increase flexibility; Rail mounted designs, and strengthens flexibility and stability; Roller established by bearing, reduces friction, improves travelling performance; Avoid projecting apparatus screen to block half blackboard and cause the not enough this situation of blackboard.
Description
Technical field
The utility model belongs to teaching aid, particularly relates to a kind of blackboard.
Background technology
Blackboard is the teaching facilities of school's each classroom indispensability.The blackboard of current use has two kinds: the first is fixed blackboard, cannot move; The second is that blackboard forms a large blackboard by four pieces of small blackboards, bearing and guide rails, large blackboard is divided into left and right two parts, small blackboard is linked together by pulley mechanism between two, can slide up and down, but time at school, because projecting apparatus screen blocks wherein two pieces of small blackboards, these two pieces of small blackboards cannot move left and right, cause two pieces of small blackboards to use, cause the waste of resource.
Utility model content
In order to overcome the defect that prior art exists, the purpose of this utility model is to provide a kind of picture mosaic blackboard, esy to use, safe and reliable, effectively utilizes space, saves material.
Picture mosaic blackboard, comprises guide rail, and guide rail is fixed on wall, is characterized in small blackboard A, B, C that described guide rail establishes three pieces to be made up of plate face and bearing, and plate face is fixing in the holder, and the bearing of band pulley is placed in guide rail; Establish two unidirectional cards along on the wall of guide rail horizontal center line, the distance of two unidirectional cards is less than the width of small blackboard, when small blackboard is by when being moved to upper, prevents small blackboard from falling; Guide rail also establishes slowing device.
The utility model improves further, and described guide rail is connected and composed by four traverse rod roads and four perpendicular tracks, sets cross section as T-shaped chute, establishes fillet in the junction of track, reduce frictional force when small blackboard moves in track.
The utility model improves further, and described bearing is connected and composed by two crossbeams and two vertical beams, and establish pulley crossbeam is vertical with the junction of vertical beam, draw-in groove is established in one end of two crossbeams, and draw-in groove is all established in the two ends of two vertical beams, facilitates plate face to install from side; Distance between two crossbeams and the distance of cross rail adapt, and the distance of two vertical beams and the distance of perpendicular track adapt.
The utility model improves further, described slowing device comprises Compress Spring and baffle plate, baffle plate upper end is fixed in the T-shaped chute of track by rotating shaft, Compress Spring is placed between track and baffle plate, small blackboard is when falling, and pulley is resisted against on baffle plate, due to the effect of Compress Spring, increase pulley and interorbital frictional force, small blackboard realizes free-falling slowly.
Compared with prior art, advantage is novel, and structure letter is gathered, rationally; Break moving up and down of blackboard, realize moving up and down, effectively utilize space, improve service efficiency; Four pieces of blackboards become three pieces, remove one piece of blackboard, save material, increase flexibility; Rail mounted designs, and strengthens flexibility and stability; Roller established by bearing, reduces friction, improves travelling performance; Avoid projecting apparatus screen to block half blackboard and cause the not enough this situation of blackboard.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the structural representation of picture mosaic blackboard;
Fig. 2 is the structural representation of the utility model bearing;
Fig. 3 is the structural representation of the utility model slowing device;
Fig. 4 is the structural representation of the unidirectional card of the utility model.
In figure: 1-guide rail, 1.1-traverse rod road, 1.2-erect track, 1.3-rotating shaft, Isosorbide-5-Nitrae-baffle plate, 1.5-Compress Spring, 2-plate face, 3-bearing, 3.1-crossbeam, 3.2-vertical beam, 3.3-pulley, the unidirectional card of 4-.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described.
See Fig. 1 to 4, picture mosaic blackboard, comprises guide rail 1, and guide rail is fixed on wall, described guide rail is established three pieces of small blackboard A, B, C be made up of plate face 2 and bearing 3, and plate face is fixing in the holder, and the bearing of band pulley 3.3 is placed in guide rail; Along the width wall of guide rail horizontal center line being established the distance of the unidirectional card of two unidirectional cards 4, two be less than small blackboard, when small blackboard is by when being moved to upper, prevent small blackboard from falling; Guide rail also establishes slowing device.
Described guide rail 1 is connected and composed by four traverse rod roads 1.1 and four perpendicular tracks 1.2, sets cross section as T-shaped chute, establishes fillet in the junction of track, reduce frictional force when small blackboard moves in track.
Described bearing 3 is connected and composed by two crossbeams 3.1 and two vertical beams 3.2, and establish pulley 3.3 crossbeam is vertical with the junction of vertical beam, draw-in groove is established in one end of two crossbeams, and draw-in groove is all established in the two ends of two vertical beams, facilitates plate face to install from side; Distance between two crossbeams and the distance of cross rail adapt, and the distance of two vertical beams and the distance of perpendicular track adapt.
Described slowing device comprises Compress Spring 1.5 and baffle plate 1.4, baffle plate upper end is fixed in the T-shaped chute of track by rotating shaft 1.3, Compress Spring is placed between track 1.2 and baffle plate, small blackboard is when falling, pulley is resisted against on baffle plate, due to the effect of Compress Spring, increase pulley and interorbital frictional force, small blackboard realizes free-falling slowly.
During use, upwards pushed away by small blackboard A, under the barrier effect of unidirectional card, small blackboard can not fall; Small blackboard C is moved to the position before small blackboard A, small blackboard B, due to the effect of slowing device, slowly falls simultaneously, until fall completely, small blackboard A, B, C can form and recycle.
Claims (4)
1. picture mosaic blackboard, comprise guide rail (1), guide rail is fixed on wall, it is characterized in that, described guide rail is established three pieces of small blackboard A, B, C be made up of plate face (2) and bearing (3), plate face is fixing in the holder, and the bearing of band pulley (3.3) is placed in guide rail; Along the wall of guide rail horizontal center line being established two unidirectional cards (4), the distance of two unidirectional cards is less than the width of small blackboard, and guide rail also establishes slowing device.
2. picture mosaic blackboard according to claim 1, is characterized in that, described guide rail (1) is connected and composed by four traverse rod roads (1.1) and four perpendicular tracks (1.2), sets cross section as T-shaped chute, establish fillet in the junction of track in track.
3. picture mosaic blackboard according to claim 1, it is characterized in that, described bearing (3) is connected and composed by two crossbeams (3.1) and two vertical beams (3.2), establishes pulley (3.3) crossbeam is vertical with the junction of vertical beam, draw-in groove is established in one end of two crossbeams, and draw-in groove is all established in the two ends of two vertical beams; Distance between two crossbeams and the distance of cross rail adapt, and the distance of two vertical beams and the distance of perpendicular track adapt.
4. picture mosaic blackboard according to claim 1, it is characterized in that, described slowing device comprises Compress Spring (1.5) and baffle plate (1.4), and baffle plate upper end is fixed in the T-shaped chute of track by rotating shaft (1.3), and Compress Spring is placed between track (1.2) and baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338698.3U CN204077160U (en) | 2014-06-24 | 2014-06-24 | Picture mosaic blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338698.3U CN204077160U (en) | 2014-06-24 | 2014-06-24 | Picture mosaic blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204077160U true CN204077160U (en) | 2015-01-07 |
Family
ID=52169915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338698.3U Expired - Fee Related CN204077160U (en) | 2014-06-24 | 2014-06-24 | Picture mosaic blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204077160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361450A (en) * | 2015-12-04 | 2016-03-02 | 苏州市吴中区光福华盛红木家具厂 | Shoe cabinet with repositioning function |
| CN105361449A (en) * | 2015-12-04 | 2016-03-02 | 苏州市吴中区光福华盛红木家具厂 | Movable storage cabinet |
-
2014
- 2014-06-24 CN CN201420338698.3U patent/CN204077160U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105361450A (en) * | 2015-12-04 | 2016-03-02 | 苏州市吴中区光福华盛红木家具厂 | Shoe cabinet with repositioning function |
| CN105361449A (en) * | 2015-12-04 | 2016-03-02 | 苏州市吴中区光福华盛红木家具厂 | Movable storage cabinet |
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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: 20150107 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |