CN106346980A - Blackboard for teaching - Google Patents
Blackboard for teaching Download PDFInfo
- Publication number
- CN106346980A CN106346980A CN201610746190.0A CN201610746190A CN106346980A CN 106346980 A CN106346980 A CN 106346980A CN 201610746190 A CN201610746190 A CN 201610746190A CN 106346980 A CN106346980 A CN 106346980A
- Authority
- CN
- China
- Prior art keywords
- subplate
- road wheel
- line channel
- blackboard
- guide groove
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
Abstract
The invention relates to a blackboard for teaching, comprising support set with main board and first accessory board, guide slot set on the support that comprises principal straight guide slot section extending along the left-right direction of guide whose length is higher than clearance between left running wheel of accessory board and right running wheel of accessory board and inclined guide slot section set on the right of principal straight guide slot section and gradually extending from left to right towards the front guide direction, right running wheel of accessory board and left running wheel of accessory board set on the first accessory board, and right running wheel access slot for right running wheel of accessory board to access along the left-right direction only set on the right slot wall of inclined guide slot section. As the first accessory board moves rightward, the left running wheel of accessory board move and fit with arc guide slot guide so as to make first accessory board move forward till front board surface of first accessory board flushes the front board surface of main board. The blackboard for teaching provides blackboard for flushing main board and first accessory board.
Description
Technical field
The present invention relates to a kind of blackboard for teaching.
Background technology
Blackboard is the requirement in each professional teaching, in actual use, is frequently encountered the use of a blackboard
Limited area and not enough situation, the usable floor area therefore how increasing blackboard has just become a problem demanding prompt solution.
Disclose a kind of " tourism management specialty that can expand blackboard displaying area for this Chinese patent cn204010409u
With Graphic Panel of imparting knowledge to students ", this teaching Graphic Panel includes support and mainboard, the first subplate, and the rear side of mainboard is provided with guide direction
The guide rail be arrangeding in parallel with mainboard, the first subplate bottom is provided with the left road wheel of subplate and subplate right lateral with guide rail guiding cooperation
Walk wheel, by the cooperation of road wheel and guide rail, the first subplate can be along guide rail guiding movement, when not in use, and the first subplate is hidden
In the rear side of mainboard, so can reduce the occupation of land space of whole blackboard, when motherboard space is not enough, move right the first pair
Plate, the first subplate is removed by mainboard side, and such first subplate can increase the usable floor area of blackboard to use.Existing this
Kind of blackboard there is a problem in that the first subplate by removing on rear side of mainboard after, the front face of the front face of mainboard and the first subplate
Not in the same plane, due to the restriction of guide rail, the front face of the first subplate is in the rear side of the front face of mainboard, thus
Bring sense straggly to the vision of student, very uncomfortable, in addition, if as larger in figure drawing, the first subplate nor play for
The effect that mainboard supports, using unusual inconvenience.
Content of the invention
It is an object of the invention to provide a kind of blackboard for teaching making mainboard flush with the first subplate.
To achieve these goals, the technical solution adopted in the present invention is:
Blackboard for teaching, including support, support is provided with mainboard and the subplate that thickness of slab extends along the longitudinal direction, in master on support
The rear side of plate is provided with guide groove, and subplate includes the first subplate and the second subplate being hinged and connected with the first subplate, the second subplate
Hinge axes are arranged along the vertical direction, and guide groove includes main line channel section that guide direction extends in left-right direction and is arranged at master
The inclined guide groove section gradually guiding extension from left to right forward of line channel section right-hand member, main line channel section is tilted with inclined guide groove section
Setting, the first subplate is provided with the right road wheel of subplate for coordinate with described line channel guiding movement and be used for described
Line channel and the left road wheel of subplate of arc guide barrel guiding movement cooperation, the length of main line channel section is walked more than subplate left lateral
Spacing between wheel, the right road wheel of subplate, the thickness of the right road wheel of subplate and/or diameter are less than the left road wheel of subplate, inclined guide groove
Offer on the right side cell wall of section only supply the right road wheel of subplate in left-right direction on the right road wheel that passes through pass through groove, secondary first
Plate towards the left road wheel of subplate during moving right with the cooperation of arc guide groove guiding movement so that the first subplate move forward as
The front face of the first subplate is flushed with the front face of mainboard.
The guiding end of travel of described arc guide groove is provided with and be arranged in parallel towards left extension and main line channel section
Secondary line channel section, secondary line channel section is used for the cooperation of subplate left road wheel guiding movement with secondary on the first subplate road wheel edge
Line channel section makes the left side of the first subplate contact with the right side of mainboard towards during move left.
Be provided with the cell wall of secondary line channel section for the cooperation of subplate left road wheel top pressure and bullet in the longitudinal direction
Property deformation shell fragment, when contacting with the right side of mainboard when the left side of the first subplate, the first subplate road wheel is limited in by shell fragment
The left part of secondary line channel section.
The right road wheel of subplate is arranged on described first subplate by right walking round frame, and the right walking round frame of subplate is secondary with first
Plate secure fit.
The left road wheel of subplate is arranged on described first subplate by left walking round frame, and left walking round frame is turned with the first subplate
Dynamic cooperation, the pivot center of left walking round frame is vertically extending.
Edge is provided with left walking round frame perpendicular to the pivot center direction of left walking round frame towards away from left walking round frame side
To horizontal-extending position limit arm, the first subplate is provided with for cooperation spacing with described position limit arm to limit under depression angle
Left walking round frame rotates counterclockwise the position limiting structure of the limit, and during position limiting structure cooperation spacing with position limit arm, the left road wheel of subplate turns
Shaft line extends along the longitudinal direction, is provided with back-moving spring between the first subplate and position limit arm.
The invention has the benefit that when mainboard is enough, the left road wheel of subplate and the right road wheel of subplate are in master directly
In line guide groove section, now the first subplate and the second subplate are hidden in the rear side of mainboard；When mainboard is not enough, move right first
Subplate, the starting stage of movement, the left road wheel of subplate and the right road wheel of subplate are all coordinated with main line channel section guiding movement, with
Towards moving right, the right road wheel of subplate is introduced in inclined guide groove section for the continuation the first subplate, and the right side due to inclined guide groove section
Offer on cell wall right road wheel pass through groove, therefore the right road wheel of subplate directly by right road wheel by groove by and with entirely lead
Groove departs from, it is to avoid hinder moving forward of the first subplate, when the left road wheel of subplate moves to inclined guide groove Duan Zhonghou, subplate left lateral is walked
Wheel can not be passed through to pass through in groove by right road wheel, and the left road wheel of subplate is only capable of along inclined guide groove section guiding movement, in subplate left lateral
During walking the guiding movement of wheel, the position of the first subplate also gradually moves front face and mainboard up to the first subplate forward
Front face flushes, and meets and flushes demand, then launches the second subplate, and the use of the second subplate further increased making of product
Use area.
Further, when the first subplate mobile to flush with the front face of mainboard with front face after, the first subplate and master
Plate has gap in the lateral direction, in order to avoid the presence in this gap, then towards left push the first subplate, subplate left road wheel edge
Secondary line channel section to move, can be achieved with mainboard and be connected with the first subplate, more convenient to use.
Brief description
Fig. 1 is structural representation when the first subplate has moved on the right side of mainboard in one embodiment of the present of invention；
Fig. 2 is mainboard in Fig. 1, the one the first subplates, the cooperation schematic diagram of the two the first subplates；
Fig. 3 is guide groove and the left road wheel of subplate, the cooperation schematic diagram of the right road wheel of subplate in the present invention；
Fig. 4 be the right road wheel of subplate by right road wheel the view by hole；
Fig. 5 is that subplate left road wheel court moves left and crosses view during shell fragment；
Fig. 6 is the cooperation schematic diagram of the left road wheel of subplate and left walking round frame in Fig. 1；
Fig. 7 is the top view of Fig. 6.
Specific embodiment
The enforcement of blackboard for teaching is for example shown in Fig. 1 ~ 7: includes the support with supporting leg 5, before support is provided with thickness of slab
Mainboard 1 and subplate that fore-and-aft direction extends, on support, the rear side in mainboard is provided with guide groove, and guide groove includes what notch was oppositely arranged
Upper guide groove and lower guide channel, upper and lower guide groove adopts structure symmetrical above and below, therefore only the structure of lower guide channel is carried out in the present embodiment
It is discussed in detail.Subplate includes the first subplate 211 and the second subplate 22 being hinged and connected by hinge with the first subplate, and hinge is located at
First subplate and the rear end of the second subplate, the hinge axes of the second subplate are vertically extending, in order to ensure the second subplate exhibition
Can be limited after opening, the hinge between the first subplate and the second subplate adopts damp hinge, using the frictional force of hinge itself
Come spacing after the second subplate upset to realizing.The left road wheel of subplate 4 and the right road wheel of subplate 3 are provided with the first subplate, because
Guide groove adopts the upper and lower guide groove of structure symmetrical above and below, and the left road wheel of subplate is two and is coordinated with upper guide groove and lower guide channel respectively, secondary
The right road wheel of plate is two, and respectively at upper guide groove and lower guide channel cooperation, the left road wheel of two subplates takes structure symmetrical above and below, and two
The right road wheel of individual subplate takes structure symmetrical above and below, also walks only for the subplate left lateral coordinating in lower guide channel therefore in the present embodiment
Wheel and the right road wheel of subplate carry out introduction about the construction.
The diameter of the right road wheel of subplate 3 is less than the left road wheel of subplate 4, and lower guide channel includes guide direction and extends in left-right direction
Main line channel section 6 and the inclined guide groove section gradually guiding extension from left to right forward being arranged at main line channel section 6 right-hand member
8, chute section 8 is the straight trough being obliquely installed with main line channel section, and the guiding end of travel of inclined guide groove section 8 is provided with towards left extension
The secondary line channel section 9 be arrangeding in parallel with main line channel section.The length of wherein main line channel section 6 is walked more than subplate left lateral
Wheel 4 and the spacing of the right road wheel of subplate 3, inclined guide groove section 8 offers only supply the right road wheel of subplate in left-right direction on pass through
Right road wheel passes through hole 7, and right road wheel is adapted to by the diameter of the height road wheel 3 right with subplate in hole 7 and is therefore only capable of supplying subplate
Right road wheel 3 passes through, and right road wheel is less than the diameter of the left road wheel of subplate 4, the therefore left road wheel of subplate 4 by the height in hole 7
Can not be passed through by hole 7 by right road wheel, this point is very crucial, because if the right road wheel of subplate 3 is also led with arc guide groove section 8
To cooperation, then the first subplate 21 would be at a lateral attitude and pins it is impossible to complete the process moving forward.Subplate is left
Road wheel 4 is connected with the first subplate 21 by left walking round frame 11, and left walking round frame 11 includes vertical installation axle 13 and is arranged at
The downward opening u shape fork 14 of vertical installation axle 13 lower end, the left road wheel of subplate 4 rotates two yokes 14 being arranged at u shape fork
On, vertical installation axle 13 and the first subplate are rotatably assorted, and left walking round frame 11 are provided with along turning perpendicular to left walking round frame
Shaft line direction towards away from the horizontal-extending position limit arm 12 in left walking round frame direction, the first subplate 21 is provided with for described
The spacing cooperation of position limit arm is limited block 15 to limit left lateral under depression angle and walk wheel carrier to rotate counterclockwise the position limiting structure of the limit,
Position limiting structure spacing with position limit arm cooperation when the left road wheel of subplate pivot center extend along the longitudinal direction, the first subplate with spacing
It is provided with back-moving spring 16 between arm.The right road wheel of subplate 3 is arranged on described first subplate by right walking round frame, and subplate is right
Walking round frame and the first subplate secure fit.
Be provided with the cell wall of secondary line channel section for the cooperation of subplate left road wheel top pressure and bullet in the longitudinal direction
Property deformation shell fragment 10, shell fragment be a pair, be respectively arranged on two cell walls of secondary line channel section, when the left end of the first subplate
When face is contacted with the right side of mainboard, the first subplate road wheel is limited in the left part of secondary line channel section by shell fragment.
The use process of this blackboard for teaching, when the usable floor area of mainboard is sufficiently large, without during using the first subplate,
As shown in Fig. 2 the left road wheel of subplate and the right road wheel of subplate are simultaneously in main line channel section, now the first subplate is hidden in
The rear side of mainboard；When only mainboard using and can not meet require when, the first subplate is applied with level active force to the right, first is secondary
Plate, towards moving right, just starts, and the left road wheel of subplate and the right road wheel of subplate all guide cooperation with main line channel section, with first
The movement of subplate, as shown in figure 3, subplate right road wheel movement is to inclined guide groove section, because right walking round frame is solid with the first subplate
Fixed cooperation, the axis of the therefore right road wheel of subplate will not change, and so ensures that, the right road wheel of subplate can be very smooth
By right road wheel by groove by and depart from guide groove, with the first subplate continuation towards moving right, the left road wheel of subplate is opened
Begin to enter arc guide groove, be now subject to the guide effect of arc guide groove, the pivot center of the left road wheel of subplate starts to become
Change, the guiding movement of the left road wheel of subplate arcuately gathering sill, the first subplate then can be parallel with mainboard forward, towards moving right,
When the guiding end of travel of subplate left road wheel movement to arc guide groove, the front face of the first subplate and the front face of mainboard
Flush, now mainboard, the first subplate can use simultaneously, but meeting and mainboard during being moved right due to the first subplate court
Right-hand member between produce gap, this may influence whether to write, and arranges secondary line channel section, as Fig. 4 institute therefore in the present invention
Show, after subplate left road wheel movement is to inclined guide groove section guiding end of travel, by action of reset spring, the left road wheel of subplate resets
And the pivot center of the left road wheel of subplate is along the longitudinal direction again, the effect towards left direction now can be applied to the first subplate
Power, the left road wheel of subplate moves left along secondary line channel section court, and extrusion elastic, and the left road wheel of subplate crosses shell fragment to the left
Afterwards, the left road wheel of subplate is just limited in the left part of secondary line channel section by shell fragment, and under not having external force effect, subplate left lateral is walked
Wheel will not move, and now the left side of the first subplate is also contacted with the right side of mainboard, and such mainboard and the first subplate are with regard to shape
Become a perfectly entirety, can use entirely as one piece of blackboard.When needing to withdraw the first subplate, first apply to the first subplate
Towards right direction active force, the first subplate extrusion elastic and the mobile right-hand member to secondary line channel section, then through inclined guide groove section, main straight
Line guide groove section original route return.
This blackboard for teaching can apply to Destination Management, physics, chemistry, Chinese language, mathematics, English, politics, economy, life
Use in each professional teaching such as thing, geography, pedagogy, statistics, the fine arts, dissemination, history.
In other embodiments of the invention: the right road wheel of subplate may not be diameter be less than the left road wheel of subplate, than
Thickness as said the right road wheel of subplate is less than the left road wheel of subplate, and now right road wheel passes through groove width and the right road wheel of subplate of groove
Adaptation and be less than the left road wheel of subplate, right road wheel by groove can only for the right road wheel of subplate by and can not walk for subplate left lateral
Wheel passes through；Back-moving spring can not also set, and manpower now can be relied on to adjust the reset of subplate left road wheel；Right walking round frame with
First subplate can also be rotatably assorted；Shell fragment can not also set, and left road wheel positions to subplate now can to rely on frictional force；Lead
Groove can also only include lower guide channel, and the now upper end setting of support turns edge, and the upper end of the first subplate is slidably matched with turning edge
Plane, as long as ensure that the first subplate does not drop from support；Hinge between first subplate and the second subplate can not also
It is damp hinge, now need to arrange corresponding position limiting structure the second subplate is limited in expanded position, such as first
Subplate to be realized to spacing after the second subplate expansion with the setting Magnet on end face that docks of the second subplate.
Claims (6)
1. blackboard for teaching, including support, support is provided with mainboard and the subplate that thickness of slab extends along the longitudinal direction, on support in
The rear side of mainboard be provided with guide groove it is characterised in that: subplate include the first subplate and be hinged and connected with the first subplate second secondary
Plate, the hinge axes of the second subplate are arranged along the vertical direction, and guide groove includes the main straight line that guide direction extends in left-right direction leads
Groove section and the inclined guide groove section gradually guiding extension from left to right forward being arranged at main line channel section right-hand member, main line channel section
It is obliquely installed with inclined guide groove section, the first subplate is provided with and walks for the subplate right lateral coordinating with described line channel guiding movement
Wheel and the left road wheel of subplate for coordinating with described line channel and arc guide barrel guiding movement, the length of main line channel section
More than the spacing between the left road wheel of subplate, the right road wheel of subplate, the thickness of the right road wheel of subplate and/or diameter are less than a subplate left side
Road wheel, the right side cell wall of inclined guide groove section offers only supply the right road wheel of subplate in left-right direction on the right road wheel that passes through lead to
Cross groove, in the first subplate towards the left road wheel of subplate during moving right with the cooperation of arc guide groove guiding movement so that the first subplate
Move forward and flush with the front face of mainboard as the front face of the first subplate.
2. blackboard for teaching according to claim 1 it is characterised in that: the guiding end of travel of described arc guide groove sets
It is equipped with the secondary line channel section be arrangeding in parallel towards left extension and main line channel section, secondary line channel section is used for and subplate left lateral
Walk to take turns guiding movement cooperation to make a left side for the first subplate in the first subplate road wheel towards during move left along secondary line channel section
End face is contacted with the right side of mainboard.
3. blackboard for teaching according to claim 2 it is characterised in that: be provided with the cell wall of secondary line channel section for
With the shell fragment of the cooperation of subplate left road wheel top pressure and elastic deformation in the longitudinal direction, when left side and the mainboard of the first subplate
During the contact of right side, the first subplate road wheel is limited in the left part of secondary line channel section by shell fragment.
4. blackboard for teaching according to claim 1 it is characterised in that: the right road wheel of subplate is arranged by right walking round frame
On described first subplate, the right walking round frame of subplate and the first subplate secure fit.
5. the blackboard for teaching according to claim 2 ~ 4 any one it is characterised in that: the left road wheel of subplate pass through left lateral
Walk wheel carrier to be arranged on described first subplate, left walking round frame is rotatably assorted with the first subplate, the pivot center of left walking round frame
Vertically extending.
6. blackboard for teaching according to claim 5 it is characterised in that: be provided with along perpendicular to left lateral in left walking round frame
Walk the pivot center direction of wheel carrier towards away from the horizontal-extending position limit arm in left walking round frame direction, the first subplate is provided with for
Cooperation spacing with described position limit arm walks, to limit left lateral under depression angle, the position limiting structure that wheel carrier rotates counterclockwise the limit, spacing
During structure cooperation spacing with position limit arm, the pivot center of the left road wheel of subplate extends along the longitudinal direction, the first subplate and position limit arm it
Between be provided with back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746190.0A CN106346980B (en) | 2016-08-29 | 2016-08-29 | Blackboard for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746190.0A CN106346980B (en) | 2016-08-29 | 2016-08-29 | Blackboard for teaching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106346980A true CN106346980A (en) | 2017-01-25 |
| CN106346980B CN106346980B (en) | 2017-11-10 |
Family
ID=57855466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610746190.0A Expired - Fee Related CN106346980B (en) | 2016-08-29 | 2016-08-29 | Blackboard for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106346980B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829782A (en) * | 2021-11-04 | 2021-12-24 | 临澧县职业中专学校 | Plug-type automatically cleaning dustless teaching blackboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508218A (en) * | 2009-03-09 | 2009-08-19 | 李莉 | Blackboard convenient for student viewing |
| JP4351596B2 (en) * | 2004-07-30 | 2009-10-28 | 正継 隈本 | Blackboard replacement jig and blackboard replacement method using the same |
| CN201346932Y (en) * | 2009-01-19 | 2009-11-18 | 廉双瑞 | Novel blackboard |
| CN202879022U (en) * | 2012-09-21 | 2013-04-17 | 黄锦洪 | Push-pull tablet for electrified education |
| JP2015202573A (en) * | 2014-04-10 | 2015-11-16 | 日学株式会社 | Multifunctional board |
| CN105538962A (en) * | 2016-01-18 | 2016-05-04 | 厦门理工学院 | Adjustable writing board |
| CN206124532U (en) * | 2016-07-04 | 2017-04-26 | 湖北世安科技有限公司 | Draw back plate |
-
2016
- 2016-08-29 CN CN201610746190.0A patent/CN106346980B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4351596B2 (en) * | 2004-07-30 | 2009-10-28 | 正継 隈本 | Blackboard replacement jig and blackboard replacement method using the same |
| CN201346932Y (en) * | 2009-01-19 | 2009-11-18 | 廉双瑞 | Novel blackboard |
| CN101508218A (en) * | 2009-03-09 | 2009-08-19 | 李莉 | Blackboard convenient for student viewing |
| CN202879022U (en) * | 2012-09-21 | 2013-04-17 | 黄锦洪 | Push-pull tablet for electrified education |
| JP2015202573A (en) * | 2014-04-10 | 2015-11-16 | 日学株式会社 | Multifunctional board |
| CN105538962A (en) * | 2016-01-18 | 2016-05-04 | 厦门理工学院 | Adjustable writing board |
| CN206124532U (en) * | 2016-07-04 | 2017-04-26 | 湖北世安科技有限公司 | Draw back plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829782A (en) * | 2021-11-04 | 2021-12-24 | 临澧县职业中专学校 | Plug-type automatically cleaning dustless teaching blackboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106346980B (en) | 2017-11-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Xia Inventor after: Lv Xiangling Inventor after: Jia Lijun Inventor after: Lian Ruirui Inventor after: Ni Fengfeng Inventor before: Li Xiaoli |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171019 Address after: 451150 Xinzheng Road, Longhu Town, Zhengzhou City, Henan province 1 Taishan Road Applicant after: Henan Mechanical and Electrical Vocational College Address before: 450000 No. 6 building, No. 258, Nanyang Road, Jinshui District, Henan, Zhengzhou, 1 Applicant before: Li Xiaoli |
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| 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: 20171110 Termination date: 20180829 |