CN202088731U - Foldable type demonstrating board - Google Patents
Foldable type demonstrating board Download PDFInfo
- Publication number
- CN202088731U CN202088731U CN2011202133457U CN201120213345U CN202088731U CN 202088731 U CN202088731 U CN 202088731U CN 2011202133457 U CN2011202133457 U CN 2011202133457U CN 201120213345 U CN201120213345 U CN 201120213345U CN 202088731 U CN202088731 U CN 202088731U
- Authority
- CN
- China
- Prior art keywords
- face plate
- backplate
- back face
- main panel
- support rod
- 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
A foldable type demonstrating board belongs to the technical field of teaching instruments, and comprises a base, a main face plate and a back face plate, wherein the main face plate is fixed on the base, the back face plate is positioned on the back surface of the main face plate, the bottom of the back face plate is hinged with the top of the main face plate, an air support rod is further connected between the main face plate and the back face plate, and the two ends of the air support rod are hinged with the main face plate and the back face plate respectively. During the use, the main face plate is turned upwards, the air support rod extends and pushes the back face plate to turn upwards, after the main face plate is turned to a proper position, the air support rod is used for keeping the back face plate to be in a vertical position. When the back face plate is pressed downwards, the air support rod retracts, the back face plate is completely folded behind the main face plate, the back face plate is supported by the air support rod so as to enable the back face plate to be close to the position of the main face plate, and the foldable type demonstrating board is convenient to carry.
Description
Technical field
The utility model relates to a kind of instruments used for education, is meant that specifically didactic works writes plate.
Background technology
Usually when teaching, the teacher wants to tell about content to be expressed to the student earlier, and then announces result or answer to the student.And will write in advance through normal the employing at enterprising andante book of blackboard or preparation polylith template of such process.On-the-spot writing on the blackboard meeting delays instructional blocks of time, prepares the polylith template and carries inconvenience.
The utility model content
The technical problems to be solved in the utility model is the defective that overcomes existing demonstrator, and a kind of collapsible demonstrator is provided, and is convenient for carrying and uses.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of collapsible demonstrator, comprise base, main panel and backplate, main panel is fixed on the base, backplate is positioned at the main panel back side, and the backplate bottom is hinged with the main panel top, also be connected with the gas strut between main panel and the backplate, described gas strut two ends and main panel, backplate are distinguished hinged.
Further, hinged between described main panel and the backplate by first bearing pin that is fixed in the main panel back side, hinged between gas strut and the main panel by second bearing pin that is fixed in the main panel back side, hinged between gas strut and the backplate by the 3rd bearing pin that is fixed in the backplate back side.
During use, upwards dig backplate, the gas strut extends and promotes backplate upwards to be dug, and keeps the upright position of backplate.After pressing backplate downwards, the compression of gas strut.The 3rd bearing pin is positioned at a side of first bearing pin and the second bearing pin line, and the distance between itself and line forms the arm of force, makes backplate after can being folded in main panel fully under the effect of gas strut, it is in to main panel draws close, and is easy to carry.
The advantage of the collapsible demonstrator of the utility model is: on the teaching panel, material object for teaching or writing words can be installed, again to other parts of student's teaching demonstration content, be convenient to incremental teaching method with teaching process, and easy to carry.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the front view of the collapsible demonstrator of the utility model;
Fig. 2 is the left view of the demonstrator of Fig. 1;
Fig. 3 is the backplate tip-up state schematic diagram of the demonstrator of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in qualification the utility model.
As Figure 1-3, a kind of collapsible demonstrator, comprise base 1, main panel 2, backplate 3, gas strut 4, first bearing pin 5, second bearing pin 6, the 3rd bearing pin 7, main panel 2 is fixed on the base 1, backplate 3 is positioned at main panel 2 back sides, and it is hinged by first bearing pin 5 that is fixed in main panel 2 back sides, also be connected with gas strut 4 between main panel 2 and the backplate 3, hinged between gas strut 4 and the main panel 2 by second bearing pin 6 that is fixed in main panel 2 back sides, hinged between gas strut 4 and the backplate 3 by the 3rd bearing pin 7 that is fixed in backplate 3 back sides.
In when assembling, can allow gas strut 4 play a supporting role when plate 3 turns over overleaf, being folded down during plate 3 overleaf and playing the key condition that supports clamping action is that the 3rd bearing pin 7 all can not be at the homonymy of first bearing pin 5 and second bearing pin, 6 lines when two states; Next is that backplate 3 is upwards dug, and when being in vertical position, the length the when distance that second bearing pin 6 and the 3rd bearing pin are 7 equals gas strut 4 just and discharges, otherwise backplate 3 can turn forward or swing back.Can certainly guarantee the vertical of backplate 3 with spacing mode, but the length of its distance can not discharge less than gas strut 4 time; Be after backplate 3 folds downwards at last, the minimum length after the distance that second bearing pin 6 and the 3rd bearing pin are 7 should be compressed greater than gas strut 4, otherwise backplate 3 can not be drawn close main panel 2.Gas strut 4 is in the compression shape can allow backplate 3 draw close main panel 2 all the time, is easy to carry.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. collapsible demonstrator, it is characterized in that: comprise base, main panel and backplate, main panel is fixed on the base, backplate is positioned at the main panel back side, and the backplate bottom is hinged with the main panel top, also be connected with the gas strut between main panel and the backplate, described gas strut two ends and main panel, backplate are distinguished hinged.
2. collapsible demonstrator according to claim 1, it is characterized in that: hinged between described main panel and the backplate by first bearing pin that is fixed in the main panel back side, hinged between gas strut and the main panel by second bearing pin that is fixed in the main panel back side, hinged between gas strut and the backplate by the 3rd bearing pin that is fixed in the backplate back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202133457U CN202088731U (en) | 2011-06-22 | 2011-06-22 | Foldable type demonstrating board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202133457U CN202088731U (en) | 2011-06-22 | 2011-06-22 | Foldable type demonstrating board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202088731U true CN202088731U (en) | 2011-12-28 |
Family
ID=45363820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202133457U Expired - Fee Related CN202088731U (en) | 2011-06-22 | 2011-06-22 | Foldable type demonstrating board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202088731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227677A (en) * | 2014-09-11 | 2014-12-24 | 安徽安凯汽车股份有限公司 | Floor leather pasting preassembling workbench tool |
-
2011
- 2011-06-22 CN CN2011202133457U patent/CN202088731U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104227677A (en) * | 2014-09-11 | 2014-12-24 | 安徽安凯汽车股份有限公司 | Floor leather pasting preassembling workbench tool |
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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: 20111228 Termination date: 20120622 |