CN213973390U - Presentation device is used in teaching - Google Patents
Presentation device is used in teaching Download PDFInfo
- Publication number
- CN213973390U CN213973390U CN202022837156.9U CN202022837156U CN213973390U CN 213973390 U CN213973390 U CN 213973390U CN 202022837156 U CN202022837156 U CN 202022837156U CN 213973390 U CN213973390 U CN 213973390U
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- Prior art keywords
- fixedly connected
- demonstration
- writing board
- wall
- shaft
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- 229920000742 Cotton Polymers 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
本实用新型涉及演示装置技术领域，具体为一种教学用演示装置，包括底座，所述底座的顶端固定连接有支柱，且支柱的顶端安装有调节机构，所述调节机构包括连接轴，所述连接轴的顶端固定连接有演示书写板，所述演示书写板的表面固定安装有擦拭机构，所述擦拭机构包括固定板，所述固定板的表面开设有条形滑槽，且条形滑槽的内壁插设有滑块，所述滑块的外侧表面固定连接有连接杆。本实用新型通过设置有擦拭机构，当演示书写板需要擦拭时，同时，通过将拉环下拉，拉环在运动中通过连接杆带动连接板运动，连接板在运动中带动擦拭棉对演示书写板表面进行擦拭，从而节省大量的时间，提高教学人员的板书书写效率。
The utility model relates to the technical field of demonstration devices, in particular to a demonstration device for teaching, comprising a base, the top of the base is fixedly connected with a pillar, and an adjustment mechanism is installed on the top of the pillar, the adjustment mechanism includes a connecting shaft, and the A demonstration writing board is fixedly connected to the top of the connecting shaft, and a wiping mechanism is fixedly installed on the surface of the demonstration writing board. A sliding block is inserted into the inner wall of the sliding block, and a connecting rod is fixedly connected to the outer surface of the sliding block. The utility model is provided with a wiping mechanism, when the demonstration writing board needs to be wiped, at the same time, by pulling down the pull ring, the pulling ring drives the connecting plate to move through the connecting rod during the movement, and the connecting plate drives the wiping cotton to wipe the demonstration writing board during the movement. The surface is wiped, thereby saving a lot of time and improving the writing efficiency of teaching staff on the blackboard.
Description
Technical Field
The utility model relates to a presentation device technical field specifically is a presentation device is used in teaching.
Background
In the traditional teaching, for example, history teaching mainly depends on the dictation of books and teachers, is monotonous, students are not interested in learning, and in addition, historical events and the time of the events are difficult to understand and remember, and at the moment, teaching personnel are required to guide teaching by writing on a blackboard.
In traditional writing on blackboard, need erase writing before when the teaching personnel write full, the blackboard eraser is when wiping, and the scope of wiping is less, simultaneously, and the number of times that need wipe is more, causes the waste of time, influences the writing speed of writing on blackboard, for this reason we have proposed a presentation device for teaching and have solved above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a presentation device is used in teaching to the blackboard eraser that proposes in solving above-mentioned background art cleans the scope when cleaning, and simultaneously, the number of times that need clean is more, causes the waste of time, influences the problem of the writing speed of blackboard writing.
In order to achieve the above object, the utility model provides a following technical scheme: a demonstration device for teaching comprises a base, wherein the top end of the base is fixedly connected with a supporting column, the top end of the supporting column is provided with an adjusting mechanism, the adjusting mechanism comprises a connecting shaft, the top end of the connecting shaft is fixedly connected with a demonstration writing board, the surface of the demonstration writing board is fixedly provided with a wiping mechanism, the wiping mechanism comprises a fixed plate, the surface of the fixed plate is provided with a strip-shaped sliding chute, and the inner wall of the strip-shaped sliding chute is inserted with a sliding block, the outer side surface of the sliding block is fixedly connected with a connecting rod, and the surface of the connecting rod is fixedly connected with a pull ring, the left side of the connecting rod is fixedly connected with a connecting plate, the surface of the connecting plate is contacted with the demonstration writing board, the surface of the sliding block is fixedly connected with a second spring, and the bottom end of the second spring is fixed on the inner wall of the strip-shaped chute of the fixing plate, and the back of the connecting plate is fixedly connected with a wiping cotton.
Preferably, the right side fixed mounting of demonstration clipboard has supporting mechanism, supporting mechanism includes the bracing piece, and the bracing piece articulates on the surface of demonstration clipboard, the one end that the demonstration clipboard was kept away from to the bracing piece articulates there is the sliding sleeve, and the sliding sleeve cup joints the surface at the pull rod, the right side fixedly connected with of pull rod draws the button, the pull rod is kept away from the one end rotation of drawing the button and is installed the inner wall at the base.
Preferably, the sliding sleeve is inserted in the base, a strip-shaped sliding groove is formed in the surface of the base and the position corresponding to the sliding sleeve, the inner wall of the strip-shaped sliding groove is in contact with the surface of the sliding sleeve, a first spring is fixedly connected to the right side of the sliding sleeve, and the right side of the first spring is fixed to the inner wall of the strip-shaped sliding groove of the base.
Preferably, the connecting plates are arranged in two groups, and the two groups of connecting plates are symmetrically distributed on the surface of the fixing plate.
Preferably, the connecting shaft is fixedly connected with a limiting shaft on the surface, the limiting shaft is inserted into the inner wall of the support column, a groove is formed in the surface of the limiting shaft, a clamping shaft is inserted into the groove, and the clamping shaft is hinged to the inner wall of the support column.
Preferably, the surface of the clamping shaft is fixedly connected with a third spring, an arc-shaped groove is formed in the inner wall of the support column at a position corresponding to the clamping shaft, and one end, far away from the clamping shaft, of the third spring is fixed to the inner wall of the arc-shaped groove of the support column.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses a through being provided with wiping mechanism, when the demonstration clipboard need clean, simultaneously, through pulling down the pull ring, the pull ring drives the connecting plate motion through the connecting rod in the motion, and the connecting plate drives the cleaning cotton in the motion and cleans the demonstration clipboard surface to save a large amount of time, improve the blackboard writing efficiency of teaching personnel;
(2) the utility model discloses a be provided with adjustment mechanism, through promoting the connecting axle when using, the connecting axle drives spacing axle in the motion and rotates, and spacing axle exerts pressure to the card axle in rotating to with third spring compression deformation, simultaneously, when spacing axle rotates to suitable position, push the card axle under the spring action of third spring and insert inside establishing the recess on spacing axle surface, then with the rigidity of spacing axle, thereby accomplish the gradient adjustment to the demonstration clipboard, thereby make things convenient for the teaching personnel to write.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic left-side sectional view of the structure of the present invention;
fig. 4 is a schematic top view of the structure of the present invention.
In the figure: 1. a base; 2. a pillar; 3. demonstrating a writing board; 4. a support mechanism; 41. a pull rod; 42. pulling the button; 43. a sliding sleeve; 44. a first spring; 45. a support bar; 5. a wiping mechanism; 51. a fixing plate; 52. a slider; 53. a connecting rod; 54. a pull ring; 55. a connecting plate; 56. wiping cotton; 57. a second spring; 6. an adjustment mechanism; 61. a connecting shaft; 62. a limiting shaft; 63. clamping a shaft; 64. and a third spring.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: a demonstration device for teaching, which comprises a base 1, a supporting column 2 fixedly connected with the top end of the base 1, and the top end of the pillar 2 is provided with an adjusting mechanism 6, the adjusting mechanism 6 comprises a connecting shaft 61, the top end of the connecting shaft 61 is fixedly connected with a demonstration writing board 3, the surface of the demonstration writing board 3 is fixedly provided with a wiping mechanism 5, the wiping mechanism 5 comprises a fixed plate 51, the surface of the fixed plate 51 is provided with a strip-shaped sliding chute, and the inner wall of the strip-shaped chute is inserted with a slide block 52, the outer surface of the slide block 52 is fixedly connected with a connecting rod 53, and the surface of the connecting rod 53 is fixedly connected with a pull ring 54, the left side of the connecting rod 53 is fixedly connected with a connecting plate 55, and the surface of the connecting plate 55 is in contact with the demonstration writing board 3, the surface of the slider 52 is fixedly connected with a second spring 57, the bottom end of the second spring 57 is fixed on the inner wall of the strip-shaped chute of the fixing plate 51, and the back of the connecting plate 55 is fixedly connected with a wiping cotton 56;
further, a supporting mechanism 4 is fixedly mounted on the right side of the demonstration writing board 3, the supporting mechanism 4 comprises a supporting rod 45, the supporting rod 45 is hinged to the surface of the demonstration writing board 3, one end, far away from the demonstration writing board 3, of the supporting rod 45 is hinged to a sliding sleeve 43, the sliding sleeve 43 is sleeved on the surface of the pull rod 41, the pull button 42 is fixedly connected to the right side of the pull rod 41, one end, far away from the pull button 42, of the pull rod 41 is rotatably mounted on the inner wall of the base 1, when the demonstration writing board 3 is inclined, the sliding sleeve 43 is pushed to move through the elastic force of the first spring 44, the sliding sleeve 43 is pushed to move through the supporting rod 45 in the movement, and then the stability of the demonstration writing board 3 during the inclination is ensured;
further, the sliding sleeve 43 is inserted into the base 1, a strip-shaped sliding groove is formed in the surface of the base 1 and at a position corresponding to the sliding sleeve 43, the inner wall of the strip-shaped sliding groove is in contact with the surface of the sliding sleeve 43, the right side of the sliding sleeve 43 is fixedly connected with the first spring 44, the right side of the first spring 44 is fixed to the inner wall of the strip-shaped sliding groove of the base 1, the sliding sleeve 43 is limited through the strip-shaped sliding groove in the surface of the base 1, and the sliding sleeve 43 is prevented from shaking or rotating during movement, so that the stability of the sliding sleeve 43 during movement;
furthermore, two groups of connecting plates 55 are arranged, the two groups of connecting plates 55 are symmetrically distributed on the surface of the fixing plate 51, and the two groups of connecting plates 55 respectively correspond to the left side and the right side of the demonstration writing board 3, so that the demonstration writing board 3 can be conveniently wiped separately when being wiped by a teaching person, and the learning person can conveniently write and record;
furthermore, a limiting shaft 62 is fixedly connected to the surface of the connecting shaft 61, the limiting shaft 62 is inserted into the inner wall of the support column 2, a groove is formed in the surface of the limiting shaft 62, a clamping shaft 63 is inserted into the groove, the clamping shaft 63 is hinged to the inner wall of the support column 2, and the limiting shaft 62 is inserted into the groove in the surface of the support column 2, so that the connecting shaft 61 is conveniently pushed, the connecting shaft 61 rotates by taking the limiting shaft 62 as an axis, the inclination angle of the demonstration writing board 3 is reasonably adjusted, and therefore the use of teaching staff is facilitated;
further, a third spring 64 is fixedly connected to the surface of the clamping shaft 63, an arc-shaped groove is formed in the position, corresponding to the clamping shaft 63, of the inner wall of the strut 2, an end, far away from the clamping shaft 63, of the third spring 64 is fixed to the inner wall of the arc-shaped groove of the strut 2, and when the limiting shaft 62 rotates to a proper position, the clamping shaft 63 can be restored to the original position under the action of the third spring 64, so that the clamping tightness of the limiting shaft 62 is guaranteed;
the working principle is as follows: when the demonstration writing board 3 is used, according to the attached drawings 1 and 2, a teaching person pushes the connecting shaft 61, so that the connecting shaft 61 drives the limiting shaft 62 to rotate, the limiting shaft 62 applies pressure to the clamping shaft 63 in the rotation process, the clamping shaft 63 compresses and deforms the third spring 64 under the rotating thrust of the limiting shaft 62, when the inclination angle of the demonstration writing board 3 is adjusted to a proper position, the clamping shaft 63 is pushed to move under the elastic force action of the third spring 64, the clamping shaft 63 is inserted into the groove on the surface of the limiting shaft 62 in the movement process, then the position of the limiting shaft 62 is fixed, when the demonstration writing board 3 is inclined, the sliding sleeve 43 is pushed to move through the supporting rod 45, the sliding sleeve 43 compresses and deforms the first spring 44 in the movement process, after the teaching person finishes writing, according to the attached drawings 3 and 4, the teaching person pulls the pull ring 54 downwards, the pull ring 54 drives the connecting rod 53 to move in the movement process, the connecting rod 53 drives the sliding block 52 to move, slider 52 is with second spring 57 compression deformation in the motion, and simultaneously, connecting rod 53 drives the connecting plate 55 motion, and connecting plate 55 drives in the motion and cleans cotton 56 and clean the surface of demonstration clipboard 3, cleans the back that finishes, pushes away slider 52 motion under the spring action of second spring 57 to make connecting plate 55 remove to home position, above do the utility model discloses a whole theory of operation.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022837156.9U CN213973390U (en) | 2020-12-01 | 2020-12-01 | Presentation device is used in teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022837156.9U CN213973390U (en) | 2020-12-01 | 2020-12-01 | Presentation device is used in teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213973390U true CN213973390U (en) | 2021-08-17 |
Family
ID=77269283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022837156.9U Expired - Fee Related CN213973390U (en) | 2020-12-01 | 2020-12-01 | Presentation device is used in teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213973390U (en) |
-
2020
- 2020-12-01 CN CN202022837156.9U patent/CN213973390U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |