CN208714767U - A kind of blackboard for teaching - Google Patents
A kind of blackboard for teaching Download PDFInfo
- Publication number
- CN208714767U CN208714767U CN201821367495.1U CN201821367495U CN208714767U CN 208714767 U CN208714767 U CN 208714767U CN 201821367495 U CN201821367495 U CN 201821367495U CN 208714767 U CN208714767 U CN 208714767U
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- China
- Prior art keywords
- blackboard
- frame
- rotary
- round brush
- wiping
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Abstract
The utility model gives a kind of blackboard for teaching, including braced frame, Wiping mechanism and at least two groups rotating mechanism, vertical connecting rod in braced frame is arranged on metope by support rod, Wiping mechanism includes round brush, driving motor and two electric pushrods, two electric pushrods are arranged in straight down in two vertical connecting rods on braced frame top, round brush both ends are nested on the movable end of two electric pushrods, driving motor can drive round brush to roll, and each group of rotating mechanism includes Rotary Blackboard and position-limit mechanism.The automatic erasing of blackboard can be realized using the round brush in the blackboard for teaching, to improve the convenience of blackboard-cleaning.
Description
Technical field
The utility model relates to teaching aid technical field more particularly to a kind of blackboard for teaching.
Background technique
Currently, teacher still mainly carries out knowledge writing on the blackboard explanation using blackboard and chalk during school instruction.In blackboard
When wiping, manual wiping is typically carried out by hand-held blackboard eraser, because blackboard position is higher, is caused some shorter same
When learning progress blackboard-cleaning, wiping is more difficult, further, during blackboard-cleaning, can generate a large amount of chalk powder, and
Chalk powder can be flown upward everywhere, and floating skyborne chalk powder can be sucked by teacher and classmate, to give the body of academics and students
It damages.
Utility model content
The purpose of this utility model is to provide a kind of blackboard for teaching, can be realized using the round brush in the blackboard for teaching
The automatic erasing of blackboard, so that the convenience of blackboard-cleaning is improved, meanwhile, round brush is in braced frame when wiping blackboard
On protective plate, collection box and Rotary Blackboard composition enclosing region in carry out, so as to effectively prevent chalk powder fly upward and
Collection box collects lower backward chalk powder, improves teaching hygiene environment.
The technical solution adopted by the utility model to solve its technical problems is that: a kind of blackboard for teaching, including support frame
It is perpendicular to be respectively provided with one in the upper side frame of the braced frame and the both ends of lower frame for frame, Wiping mechanism and at least two groups rotating mechanism
Straight connecting rods, each described vertical connecting rod pass through a support rod and are fixed on metope, the Wiping mechanism include round brush,
Driving motor and two electric pushrods, two electric pushrods be arranged in the upper side frame accordingly respectively two connect vertically
On extension bar, and the top of the motion bar of electric pushrod is opposite with upper side frame, equal on the top of the motion bar of each electric pushrod
One link block is set, and the both ends of the round brush are nested with respectively on two link blocks, and the driving motor is disposed therein
On one link block, and the output shaft of driving motor can drive round brush to rotate；
Rotating mechanism described in each group includes Rotary Blackboard and position-limit mechanism, the Rotary Blackboard upper side wall and under
A upper shaft and lower rotary shaft is respectively set in the middle part of side wall, and upper shaft and lower rotary shaft are coaxial, Rotary Blackboard is by upper shaft under
Shaft holding is between upper side frame and lower frame, and Rotary Blackboard is free to rotate, and round brush can carry out the side wall of Rotary Blackboard
Wiping is also set up in the lower wall of Rotary Blackboard there are two the spliced eye for being located at lower rotary shaft two sides, and the position-limit mechanism includes
Limit support board, shank and spring, the limit support board are fixed at below the lower frame, two shank difference
It is nested at the both ends of limit support board, and the upper end of shank is plugged in the spliced eye after the lower frame, is inserting
One stop collar is set on extension bar, the spring is nested on shank, and spring holding is between stop collar and limit support board,
The lower end of two shanks is linked together by a connecting rod.
Preferably, a L shape guide rod is respectively provided on the front side wall of each link block, on the left side of braced frame
It is respectively provided with a directive slide track on frame and left frame, the L shape matched with the L shape guide rod is provided on the directive slide track
Sliding slot.
Further, the Wiping mechanism further includes controller, upper limit detection switch, lower limit detection switch, downlink
Wiping switch and uplink wiping switch, the controller and electric pushrod, driving motor, upper limit detection switch, lower limit are examined
It surveys switch, downlink wiping switch and uplink wiping switch to be electrically connected, the upper limit detection switch and lower limit detection switch
It is separately positioned on above and below the directive slide track of left frame.
Further, fixed setting one is located at the arc-shaped cover above the round brush between two link blocks.
Further, a protective plate is respectively set on the upper side frame, left frame and left frame.
Further, rubber strip there are two being respectively provided on the left side wall and right side wall of each Rotary Blackboard.
Preferably, arc angling is provided at the lower edge of the spliced eye.
Preferably, a collection box, and the hook of the two sides setting of collection box are set on rear side of the lower section of the braced frame
It is hung on corresponding support rod respectively.
The beneficial effects of the utility model are: the utility model structure is simple, it is easy to use；Rotary Blackboard is inserted by two
Extension bar limit does not influence to write in teaching process so that Rotary Blackboard has stronger stability；When the front side of Rotary Blackboard
After face is fully written letter written with chalk, after the limit by releasing shank, Rotary Blackboard can be pushed to rotate 180 °, then start electronic push away
Bar and round brush realize the mechanical wiping of Rotary Blackboard, by mechanically wiping instead of manual wipping, to substantially increase black
The convenience that blackboard eraser is wiped；In round brush wiping, arc-shaped cover follows round brush to move up and down together, thus in entire wiping process
In can effectively prevent flying upward for most of chalk powder, further, the wiping work of round brush is in protective plate, collection box always
It is carried out in the enclosing region of Rotary Blackboard composition, so as to further effectively prevent chalk powder dust to enter the other areas of teacher
In domain, then it is conducive to improve teaching environment；Collection box collects the chalk powder to fall, consequently facilitating the collection of chalk powder is handled,
It provides convenience for the surroundings maintenance in subsequent classroom.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
The part preferred embodiment of utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the overall structure side view of the utility model；
Fig. 3 is the overall structure diagram of braced frame；
Fig. 4 is the structural schematic diagram of Rotary Blackboard；
Fig. 5 is enlarged drawing at A in Fig. 1；
Fig. 6 is enlarged drawing at B in Fig. 1；
Fig. 7 is position-limit mechanism side view in conjunction with lower frame；
Fig. 8 is enlarged drawing at C in Fig. 2；
Fig. 9 is enlarged drawing at D in Fig. 2；
In figure: 1 braced frame, 11 upper side frames, 12 lower frames, 13 left frames, 14 left frames, 15 vertical connecting rods, 16
Strut, 17 directive slide tracks, 21 round brush, 211 arc-shaped covers, 22 driving motors, 23 electric pushrods, 231 link blocks, 2311L shape guiding
Bar, 24 upper limit detection switch, 25 lower limit detection switch, 26 downlinks wiping switch, 27 uplinks wiping switch, 31 rotations are black
Plate, 311 upper shafts, 312 lower rotary shafts, 313 spliced eyes, 3131 arc anglings, 314 plane bearings, 315 rubber strips, 321 limit branch
Fagging, 322 shanks, 323 springs, 324 connecting rods, 4 collection boxes, 41 hooks.
Specific embodiment
Below in conjunction with specific embodiments and drawings 1-9, to the technical scheme in the embodiment of the utility model carry out it is clear,
It being fully described by, it is clear that described embodiment is only a part of preferred embodiment of the utility model, rather than whole
Embodiment.Those skilled in the art can do similar deformation without prejudice to the utility model connotation, therefore this is practical
It is novel to be not limited by the specific embodiments disclosed below.
The utility model provides a kind of blackboard for teaching (as shown in Figure 1), including braced frame 1, Wiping mechanism and extremely
Few two groups of rotating mechanisms, in the preset implementation, braced frame 1 include upper side frame 11, lower frame 12, left frame 13 and left frame
14, upper side frame 11, left frame 13 and left frame 14 are integral structural member, the both ends of lower frame 12 be connected through a screw thread mode with
Left frame 13 is fixedly connected with the bottom of left frame 14, in an assembling process, can be disassembled lower frame 12, in order to be located at
The assembly of each component in braced frame 1.It is perpendicular that one is respectively provided in the upper side frame 11 of the braced frame 1 and the both ends of lower frame 12
Straight connecting rods 15, each described vertical connecting rod 15 are fixed on metope by a support rod 16, the Wiping mechanism packet
Round brush 21, driving motor 22 and two electric pushrods 23 are included, two electric pushrods 23 are arranged on described accordingly respectively
In the vertical connecting rod 15 of two of frame 11, and the top of the motion bar of electric pushrod 23 is opposite with upper side frame, i.e. electric pushrod
23 it is bottom-up, motion bar is respectively provided with a link block 231, institute downward, on the top of the motion bar of each electric pushrod 23
The both ends for stating round brush 21 are nested with respectively on two link blocks 231, and the driving motor 22 is disposed therein a connection
On block 231, and the output shaft of driving motor 22 can drive round brush 21 to rotate.It, can by pumping for electric pushrod 23
Realize that round brush 21 pumps, for convenient for improving the stability that round brush 21 pumps, here, in each institute
It states and is respectively provided with a L shape guide rod 2311 on the front side wall of link block 23, on the left frame 13 and left frame 14 of braced frame 1
One directive slide track 17 is set, the L shape sliding slot matched with the L shape guide rod 2311, L are provided on the directive slide track 17
Shape guide rod 2311 slides in L shape sliding slot, so that the left and right of round brush 21, front and rear limit are realized, above and below round brush 21
Reciprocal stable motion.
In this embodiment, three groups of rotating mechanisms are provided in braced frame 1, rotating mechanism described in each group is equal
Including Rotary Blackboard 31 and position-limit mechanism, a upper shaft is respectively set in the middle part of the upper side wall of the Rotary Blackboard 31 and lower wall
311 and lower rotary shaft 312, and upper shaft 311 and lower rotary shaft 312 are coaxial, Rotary Blackboard 31 passes through upper shaft 311 and lower rotary shaft 312
Holding is between upper side frame 11 and lower frame 12, and Rotary Blackboard 31 is free to rotate, for the rotation convenient for Rotary Blackboard 31,
This, is nested with a plane bearing 314 on lower rotary shaft 312.Three Rotary Blackboards 31 are arranged in order in braced frame 1, and three
A Rotary Blackboard 31 is free to rotate and does not influence mutually, and round brush 21 can wipe the side wall of Rotary Blackboard 31, that is, exist
Before not carrying out wiping work, round brush 21 is located on rear side of the lower section on rear side of the top of upper side frame 11 or positioned at lower frame 12,
When carrying out wiping work, the side wall of the bristle and Rotary Blackboard 31 of round brush 21 is fitted closely.In the lower wall of Rotary Blackboard 31
It also sets up there are two the spliced eye 313 for being located at 312 two sides of lower rotary shaft, the position-limit mechanism includes limit support board 321, shank
322 and spring 323, the limit support board 321 is fixed at 12 lower section of lower frame, and two shanks 322 cover respectively
It sets at the both ends of limit support board 321, and the upper end of shank 322 is plugged on the spliced eye after the lower frame 12
In 313, a stop collar 3221 is set on shank 322, the spring 323 is nested on shank 322, and spring 323 blocks
It sets between stop collar 3221 and limit support board 321, the lower end of two shanks 322 is linked together by a connecting rod 324,
Under the press effect of spring 323, shank 322 can be firmly plugged in spliced eye 322, to realize turning for Rotary Blackboard 31
Dynamic limit, when needing to release the limit of shank 322, the extraction of shank 322 can be realized by drop links 324, is
It is re-introduced into spliced eye 313 convenient for shank 322, is fallen here, being provided with arc at the lower edge of the spliced eye 313
Angle 3131.
For convenient for control round brush 21 wiping work, here, be additionally provided in Wiping mechanism controller (for keep attached drawing
Clearly, here, not drawing it in the accompanying drawings), upper limit detection switch 24, lower limit detection switch 25, downlink wiping switch
26 and uplink wipe switch 27, in this embodiment, controller can be PLC controller, the controller and electric pushrod
23, driving motor 22, upper limit detection switch 24, lower limit detection switch 25, downlink wiping switch 26 and uplink wiping switch
27 are electrically connected, and the upper limit detection switch 24 and lower limit detection switch 25 are separately positioned on the guiding positioned at left frame 13
Above and below sliding rail 17.
In practical application, successively pushing three 31 turns of Rotary Blackboard after all writing full font on three Rotary Blackboards 31
Dynamic 180 °, so that wall surface and round brush 21 of the Rotary Blackboard 31 with font are opposite, then according to the specific location where round brush 21,
Switch 27 is wiped to start downlink wiping switch 26 or uplink, when round brush 21 is located at the top of Rotary Blackboard 31, under starting
Row wiping switch 26, after downlink wipes the starting of switch 26, controller starts driving motor 22 and electric pushrod 23, pushes away with electronic
The downlink of bar 23 and the rolling of round brush 21, so as to carry out the wiping work of Rotary Blackboard 31, when lower limit detection switch 25 is examined
After measuring corresponding L shape gag lever post 2311, controller stops driving motor 22 and electric pushrod 23, then completes to turn
The wiping work of dynamic blackboard；When round brush 21 is located at the lower section of Rotary Blackboard 31, starting uplink wipes switch 27, and uplink wiping is opened
After closing 27 startings, controller starts driving motor 22 and electric pushrod 23, with the uplink of electric pushrod 23 and the rolling of round brush 21
It is dynamic, so as to carry out the wiping work of Rotary Blackboard 31, when upper limit detection switch 24 detects corresponding L shape limit
After bar 2311, controller stops driving motor 22 and electric pushrod 23, then completes the wiping work of Rotary Blackboard.
When round brush 21 carries out rolling wiping work, chalk powder can be raised, to reduce raising for round brush 21 to the greatest extent
Dirt harm, here, fixed setting one is located at the arc-shaped cover 211 above the round brush 21 between the link block 231, further
Ground, is respectively set a protective plate 101 on upper side frame 11, left frame 13 and left frame 14, and threaded connection can be used in protective plate 101
Mode is fixed on each frame of corresponding braced frame 1, further, is arranged one on rear side of the lower section of the braced frame 1
Collection box 4, and the hook 41 of the two sides setting of collection box 4 is hung on respectively on corresponding support rod 16, protective plate 101 is collected
Box 4 and Rotary Blackboard 31 constitute an encirclement area, so as to further effectively prevent the diffusion of chalk powder, further, be
The leakproofness between each Rotary Blackboard 31 is improved, here, being all provided on the left side wall and right side wall of each Rotary Blackboard 31
Rubber strip 315 there are two setting.
In the utility model, "front", "rear", "left", "right", "upper", "lower" be for facilitating description positional relationship and
The relative position of use, therefore cannot function as absolute position and be interpreted as limiting of its scope.
Except for the technical features described in the specification, it all is technically known to those skilled in the art.
The above combination attached drawing is described above in detail preferred embodiments of the present invention and embodiment, but this is practical
It is novel to be not limited to the above-described embodiment and examples, for those skilled in the art, do not departing from
Under the premise of the utility model is conceived, several improvements and modifications can also be made, these improvements and modifications also should be regarded as practical
Novel protection scope.
Claims (8)
1. a kind of blackboard for teaching, characterized in that including braced frame, Wiping mechanism and at least two groups rotating mechanism, described
The upper side frame of braced frame and the both ends of lower frame are respectively provided with a vertical connecting rod, each described vertical connecting rod passes through one
Support rod is fixed on metope, and the Wiping mechanism includes round brush, driving motor and two electric pushrods, two electric pushrods point
It is not arranged in accordingly in two vertical connecting rods of the upper side frame, and the top and top of the motion bar of electric pushrod
Frame is opposite, is respectively provided with a link block on the top of the motion bar of each electric pushrod, the both ends of the round brush are nested with respectively
On two link blocks, the driving motor is disposed therein on a link block, and the output shaft of driving motor can drive
Round brush rotation；
Rotating mechanism described in each group includes Rotary Blackboard and position-limit mechanism, in the upper side wall and lower wall of the Rotary Blackboard
A upper shaft and lower rotary shaft is respectively set in middle part, and upper shaft and lower rotary shaft are coaxial, and Rotary Blackboard passes through upper shaft and lower rotary shaft
Holding is between upper side frame and lower frame, and Rotary Blackboard is free to rotate, and round brush can wipe the side wall of Rotary Blackboard,
It is also set up in the lower wall of Rotary Blackboard there are two the spliced eye for being located at lower rotary shaft two sides, the position-limit mechanism includes limit branch
Fagging, shank and spring, the limit support board are fixed at below the lower frame, and two shanks are nested with respectively
The both ends of limit support board, and the upper end of shank is plugged in the spliced eye after the lower frame, on shank
One stop collar is set, and the spring is nested on shank, and spring holding, between stop collar and limit support board, two are inserted
The lower end of extension bar is linked together by a connecting rod.
2. a kind of blackboard for teaching according to claim 1, characterized in that on the front side wall of each link block
It is respectively provided with a L shape guide rod, a directive slide track is respectively provided on the left frame and left frame of braced frame, in the directive slide track
On be provided with the L shape sliding slot matched with the L shape guide rod.
3. a kind of blackboard for teaching according to claim 2, characterized in that the Wiping mechanism further include controller, on
Limit detection switch, lower limit detection switch, downlink wiping switch and uplink wiping switch, the controller and electric pushrod,
Driving motor, upper limit detection switch, lower limit detection switch, downlink wiping switch and uplink wiping switch are electrically connected, institute
It states upper limit detection switch and lower limit detection switch is separately positioned on above and below the directive slide track of left frame.
4. a kind of blackboard for teaching according to claim 3, characterized in that be fixedly installed between two link blocks
One is located at the arc-shaped cover above the round brush.
5. a kind of blackboard for teaching according to claim 4, characterized in that in the upper side frame, left frame and left frame
On a protective plate is respectively set.
6. a kind of blackboard for teaching according to claim 5, characterized in that in the left side wall of each Rotary Blackboard
Be respectively provided on right side wall there are two rubber strip.
7. a kind of blackboard for teaching according to claim 1, characterized in that be provided at the lower edge of the spliced eye
Arc angling.
8. a kind of blackboard for teaching according to claim 1, characterized in that be arranged on rear side of the lower section of the braced frame
One collection box, and the hook of the two sides setting of collection box is hung on respectively on corresponding support rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367495.1U CN208714767U (en) | 2018-08-23 | 2018-08-23 | A kind of blackboard for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367495.1U CN208714767U (en) | 2018-08-23 | 2018-08-23 | A kind of blackboard for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208714767U true CN208714767U (en) | 2019-04-09 |
Family
ID=65979281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821367495.1U Expired - Fee Related CN208714767U (en) | 2018-08-23 | 2018-08-23 | A kind of blackboard for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208714767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211452A (en) * | 2019-05-20 | 2019-09-06 | 温丁福 | A kind of chemical equation teaching demonstration frame |
| CN112810359A (en) * | 2021-01-08 | 2021-05-18 | 郭建强 | Automatic blackboard erasing device |
-
2018
- 2018-08-23 CN CN201821367495.1U patent/CN208714767U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211452A (en) * | 2019-05-20 | 2019-09-06 | 温丁福 | A kind of chemical equation teaching demonstration frame |
| CN112810359A (en) * | 2021-01-08 | 2021-05-18 | 郭建强 | Automatic blackboard erasing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20190823 |