CN207916379U - A kind of teaching blackboard - Google Patents
A kind of teaching blackboard Download PDFInfo
- Publication number
- CN207916379U CN207916379U CN201721830148.3U CN201721830148U CN207916379U CN 207916379 U CN207916379 U CN 207916379U CN 201721830148 U CN201721830148 U CN 201721830148U CN 207916379 U CN207916379 U CN 207916379U
- Authority
- CN
- China
- Prior art keywords
- add
- bottom plate
- card
- plate
- air cylinder
- 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 kind of teaching blackboard, including bottom plate, bottom plate bottom end is equipped with idler wheel, bottom plate both sides are equipped with slot, plate is movably installed in slot, the inner face of plate is arcwall face, and it cooperates with the arc limit slot being located at slot mouth, the outer end of plate is equipped with non-slipping block, bottom plate upper end is equipped with manual air cylinder, manual air cylinder lower end is connected with foot valve, foot valve is connected with pedal, it is connected with resetting spring below pedal, vent valve is additionally provided in manual air cylinder, manual air cylinder output shaft top is connected with clipboard, clipboard is internally provided with the accommodating chamber of left and right perforation, both sides up and down inside accommodating chamber are equipped with sliding rail, being slidably connected on sliding rail, there are two slide bars, it is connected with add-in card on each slide bar, handle is equipped on the outside of add-in card, two are equipped with add-in card angle retaining mechanism between add-in card and bottom plate.The freely adjustable height of the utility model, it is easy to remove and fixed, increase writing on the blackboard area, improves the quality of teaching, the angle of also freely adjustable add-in card.
Description
Technical field
The utility model belongs to teaching equipment field, and in particular to a kind of teaching blackboard.
Background technology
With the development of education and the raising of economic level, the level and quality of teaching are also constantly improving.Very
More teachers understand in teaching process, for the ease of student and save instructional blocks of time, and the small blackboard independently placed is used in classroom
It imparts knowledge to students, still, existing small blackboard when in use, still remains problems with：1, only there are one independent clipboards, can plate
The area of book is too small, influences quality of instruction；2, existing small blackboard height is fixed, and the students' union of heel row does not see writing on the blackboard content；
3, it is influenced by light, the classmate for being sitting in classroom both sides does not see the content of blackboard on both sides；4, it is not easy to mobile and fixed, use
It is inconvenient.
Invention content
The utility model is directed to the deficiency in background technology, provides a kind of teaching blackboard, passes through the utility model
Freely adjustable height, it is easy to remove and fixed, increase writing on the blackboard area, improve the quality of teaching, in addition, also freely adjustable additional
The angle of plate is watched convenient for the classmate of classroom both sides.
To achieve the above object, the utility model technical solution is as follows：
A kind of teaching blackboard, including bottom plate, the bottom plate bottom end are equipped with idler wheel, and bottom plate both sides are equipped with slot, slot
It is inside movably installed with plate, the inner face of plate is arcwall face, and is cooperated with the arc limit slot being located at slot mouth, institute
The outer end for stating plate is equipped with non-slipping block, and non-slipping block is triangular structure, and its bottom is equipped with anti-skid chequer, and the bottom plate upper end is equipped with
Manual air cylinder, manual air cylinder lower end are connected with foot valve, and foot valve is connected with pedal, is connected with resetting spring below pedal, institute
It states and is additionally provided with vent valve in manual air cylinder, manual air cylinder output shaft top is connected with clipboard, and the clipboard is internally provided with a left side
The accommodating chamber of right perforation, the both sides up and down inside accommodating chamber are equipped with sliding rail, and being slidably connected on sliding rail, there are two slide bar, each slide bars
On be connected with add-in card, handle is equipped on the outside of add-in card, add-in card angle is equipped between two add-in cards and bottom plate and is locked
Mechanism.
Preferably, the slide bar upper and lower ends are connected with pulley, and the inner wall of pulley and accommodating chamber is slidably connected.
Preferably, the add-in card angle retaining mechanism includes inserted block, hollow tube, motion bar, sliding block, locating rod, arc
Sliding slot and location hole, the inserted block and the jack for being located at add-in card bottom cooperate, and inserted block can be freely rotated in jack,
Motion bar is hinged on inserted block, motion bar bottom end is threadedly connected in hollow tube, and hollow tube bottom end is hinged with sliding block, sliding block with set
Arc chute on bottom plate is slidably connected, and is movably installed with locating rod on sliding block, locating rod and is located at arc chute bottom wall
Location hole cooperates.
Preferably, accommodating groove there are two being set on the bottom plate.
Compared with the existing technology, the utility model has the beneficial effect that：
The utility model is easy to remove, and can be fixed, prevent to blackboard by the cooperation of plate and arc limit slot
Its using when be subjected to displacement and shake, when mobile, plate is accommodated in slot, reduces floor space；The utility model add-in card
Retractable, rotation, and utilize the phase interworking of inserted block, motion bar, hollow tube, sliding block, locating rod, arc chute and location hole
It closes, itself and bottom plate is locked, the area of writing on the blackboard is increased, the content being convenient on the student viewing add-in card of classroom both sides,
It improves the quality of teaching；The utility model controls the flexible of manual air cylinder by pedal, foot valve and vent valve, regulating writing plate
Highly, prevent the student of heel row from not seeing writing on the blackboard content；The utility model structure novel, reasonable, easy to use, suitable popularization.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is structural schematic diagram of the utility model in plate use state；
Fig. 3 is the utility model bottom plate overlooking structure diagram；
Fig. 4 is the side view attachment structure schematic diagram of the utility model bottom plate and manual air cylinder；
Fig. 5 is enlarged structure schematic diagram at the A of the utility model Fig. 1；
Fig. 6 is the skid rail structure diagram of the utility model；
In figure：1, bottom plate, 2, idler wheel, 3, slot, 4, plate, 5, arc limit slot, 6, non-slipping block, 7, manual air cylinder, 8,
Foot valve, 9, pedal, 10, resetting spring, 11, vent valve, 12, clipboard, 13, accommodating chamber, 14, sliding rail, 15, slide bar, 16, attached
Splice, 17, handle, 18, pulley, 19, inserted block, 20, hollow tube, 21, motion bar, 22, sliding block, 23, locating rod, 24, arc slides
Slot, 25, location hole, 26, accommodating groove.
Specific implementation mode
To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below
In conjunction with specific implementation mode, the utility model is expanded on further.
As shown in Figures 1 to 6, a kind of teaching blackboard, including bottom plate 1, bottom plate bottom end are equipped with idler wheel 2, bottom plate both sides
Equipped with slot 3, plate 4 is movably installed in slot, the inner face of plate is arcwall face, and is limited with the arc being located at slot mouth
Position slot 5 cooperates, and the outer end of plate is equipped with non-slipping block 6, and non-slipping block is triangular structure, and its bottom is equipped with anti-skid chequer, bottom
Plate upper end is equipped with manual air cylinder 7, and manual air cylinder lower end is connected with foot valve 8, and foot valve is connected with pedal 9, is connected below pedal
There is resetting spring 10, vent valve 11 is additionally provided in manual air cylinder, manual air cylinder output shaft top is connected with clipboard 12, clipboard
It is internally provided with the accommodating chamber 13 of left and right perforation, the both sides up and down inside accommodating chamber are equipped with sliding rail 14, and two are slidably connected on sliding rail
A slide bar 15, slide bar upper and lower ends are connected with pulley 18, and the inner wall of pulley and accommodating chamber is slidably connected, and is connected on each slide bar
Add-in card 16, add-in card outside are equipped with handle 17, and two are equipped with add-in card angle retaining mechanism between add-in card and bottom plate, add
Plate angle degree retaining mechanism includes inserted block 19, hollow tube 20, motion bar 21, sliding block 22, locating rod 23, arc chute 24 and location hole
25, inserted block and the jack for being located at add-in card bottom cooperate, and inserted block can be freely rotated in jack, and work is hinged on inserted block
Lever, motion bar bottom end are threadedly connected in hollow tube, and hollow tube bottom end is hinged with sliding block, sliding block and the arc being located on bottom plate
Sliding slot is slidably connected, and locating rod is movably installed on sliding block, and locating rod and the location hole for being located at arc chute bottom wall cooperate,
Accommodating groove 26 there are two being set on bottom plate.
The operation principle of the utility model is as follows：
As shown in Figures 1 to 6, in use, blackboard is moved to designated position, the plate 4 in bottom plate 1 is pulled out, using inserting
The cooperation of plate inner face and arc limit slot 5 makes the non-slipping block 6 of plate outer end be supported on ground, and non-slipping block bottom is equipped with anti-
Sliding line, can effectively improve the stability of blackboard, it is avoided to be subjected to displacement and shake, teacher makes manual air cylinder by foot pedal 9
7 elongations, are increased to proper height, teacher can be in the enterprising andante book of clipboard by clipboard 12.When need use add-in card 16
When, it is pulled out along sliding rail 14 by handle 17, then inserted block 19 is inserted into jack by rotation add-in card 16 to suitable angle
Interior, 21 bottom end of motion bar is threadedly connected in hollow tube 20, and hollow tube bottom end is hinged with sliding block 22, utilizes locating rod 23 and arc
Location hole 25 in sliding slot 24 cooperates, and add-in card 16 and bottom plate 1 are locked.After blackboard use, it will add
Plate 16 is accommodated in accommodating chamber 13, and motion bar 21 and hollow tube 20 are positioned in the accommodating groove 26 above bottom plate, then opened
Vent valve 11 declines clipboard 12, saves floor space.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent requirements of the claims
All changes are embraced therein.Any reference numeral in claim should not be considered as to the involved right of limitation
It is required that.
Claims (4)
1. a kind of teaching blackboard, including bottom plate, it is characterised in that：The bottom plate bottom end is equipped with idler wheel, and bottom plate both sides are equipped with
Slot is movably installed with plate in slot, and the inner face of plate is arcwall face, and with the arc limit slot phase that is located at slot mouth
The outer end of mutually cooperation, the plate is equipped with non-slipping block, and non-slipping block is triangular structure, and its bottom is equipped with anti-skid chequer, the bottom
Plate upper end is equipped with manual air cylinder, and manual air cylinder lower end is connected with foot valve, and foot valve is connected with pedal, is connected with below pedal multiple
Position spring, is additionally provided with vent valve in the manual air cylinder, and manual air cylinder output shaft top is connected with clipboard, in the clipboard
Portion is equipped with the accommodating chamber of left and right perforation, and the both sides up and down inside accommodating chamber are equipped with sliding rail, is slidably connected on sliding rail there are two slide bar,
It is connected with add-in card on each slide bar, is equipped with handle on the outside of add-in card, add-in card is equipped between two add-in cards and bottom plate
Angle retaining mechanism.
2. a kind of teaching blackboard as described in claim 1, it is characterised in that：The slide bar upper and lower ends are connected with cunning
The inner wall of wheel, pulley and accommodating chamber is slidably connected.
3. a kind of teaching blackboard as described in claim 1, it is characterised in that：The add-in card angle retaining mechanism includes
Inserted block, hollow tube, motion bar, sliding block, locating rod, arc chute and location hole, the inserted block and be located at add-in card bottom insert
Hole cooperates, and inserted block can be freely rotated in jack, motion bar is hinged on inserted block, during motion bar bottom end is threadedly connected to
In blank pipe, hollow tube bottom end is hinged with sliding block, and sliding block is slidably connected with the arc chute being located on bottom plate, activity installation on sliding block
There are locating rod, locating rod and the location hole for being located at arc chute bottom wall to cooperate.
4. a kind of teaching blackboard as described in claim 1, it is characterised in that：Accommodating groove there are two being set on the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830148.3U CN207916379U8 (en) | 2018-07-24 | 2018-07-24 | A kind of teaching blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830148.3U CN207916379U8 (en) | 2018-07-24 | 2018-07-24 | A kind of teaching blackboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN207916379U true CN207916379U (en) | 2018-09-28 |
| CN207916379U8 CN207916379U8 (en) | 2018-12-21 |
Family
ID=63607758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721830148.3U Expired - Fee Related CN207916379U8 (en) | 2018-07-24 | 2018-07-24 | A kind of teaching blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207916379U8 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484061A (en) * | 2019-01-09 | 2019-03-19 | 日照职业技术学院 | A kind of multimedia industrial and commercial administration teaching equipment |
| CN111243387A (en) * | 2020-03-10 | 2020-06-05 | 济宁学院 | Portable english teaching board |
| CN111230775A (en) * | 2020-03-24 | 2020-06-05 | 辽宁工程技术大学 | Positioning device based on machine vision |
-
2018
- 2018-07-24 CN CN201721830148.3U patent/CN207916379U8/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484061A (en) * | 2019-01-09 | 2019-03-19 | 日照职业技术学院 | A kind of multimedia industrial and commercial administration teaching equipment |
| CN111243387A (en) * | 2020-03-10 | 2020-06-05 | 济宁学院 | Portable english teaching board |
| CN111230775A (en) * | 2020-03-24 | 2020-06-05 | 辽宁工程技术大学 | Positioning device based on machine vision |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207916379U8 (en) | 2018-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model patent | ||
| CU01 | Correction of utility model patent |
Correction item: Application Date Correct: 2018.07.24 False: 2017.12.25 Number: 39-02 Page: The title page Volume: 34 False: 2017.12.25 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20190724 |