CN104029541A - Adjustable blackboard - Google Patents

Adjustable blackboard Download PDF

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Publication number
CN104029541A
CN104029541A CN201410211501.4A CN201410211501A CN104029541A CN 104029541 A CN104029541 A CN 104029541A CN 201410211501 A CN201410211501 A CN 201410211501A CN 104029541 A CN104029541 A CN 104029541A
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CN
China
Prior art keywords
blackboard
frame
rod
piece
adjustable
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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.)
Pending
Application number
CN201410211501.4A
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Chinese (zh)
Inventor
魏玉兰
李兵
厉建东
秦运海
Original Assignee
魏玉兰
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 魏玉兰 filed Critical 魏玉兰
Priority to CN201410211501.4A priority Critical patent/CN104029541A/en
Publication of CN104029541A publication Critical patent/CN104029541A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an adjustable blackboard which comprises a blackboard frame (2) and at least two split blackboard blocks (2). A blackboard eraser (6) and forward pushing mechanisms (3) pushing the blackboard blocks (2) to move forwards are arranged on the blackboard frame (1), stepping motors (4) and blackboard clamping blocks (5) are arranged on the forward pushing mechanisms (3), the blackboard blocks (2) are fixedly arranged on the blackboard clamping blocks (5), the stepping motors (4) drive the blackboard clamping blocks (5) to rotate to achieve the forward and reverse turnover of the blackboard blocks (2), and control switches (11) of the forward pushing mechanisms (3) and the stepping motors (4) are further arranged on the blackboard frame (1). The blackboard frame (1) is provided with a supporting frame (12) and can slide left and right along the supporting frame (12), and a projection curtain (14) is arranged on the inner side of the supporting frame (12). The adjustable blackboard solves the problem of the complex turnover operation of a traditional adjustable blackboard, and is simple in structure, small in occupied wall area and suitable for being mounted and used in a small classroom.

Description

Adjustable blackboard
Technical field
The invention belongs to the blackboard that classroom instruction is used, particularly a kind of adjustable blackboard.
Background technology
Blackboard is the educational aid of classroom instruction indispensability.On September 25th, 2013, the innovation and creation that application number is 201320189005.4 disclose a kind of turnover blackboard, and it is provided with upper and lower groove in the upper and lower frames inner side of blackboard frame, and some blackboard pieces are set in groove; Above every blackboard piece, sliding pin on first and second is set, the first and second downslide untie-sells is set below blackboard piece and a handle is set; On upper and lower groove, set gap and lower baffle plate is set; Upper sliding pin on blackboard piece and downslide untie-sell can be embedded in upper and lower groove and in upper and lower groove and be slided by described gap; One side of a certain blackboard piece is deviate to upper and lower groove, the opposite side of this blackboard piece can be slided in upper and lower groove, make the upset of blackboard piece; After upset, again a side of the blackboard piece of deviating from is embedded to upper and lower groove again, recover the state of writing of blackboard.Although this scheme can both be write the two sides of blackboard piece, has expanded the writing on the blackboard area of blackboard, the operation of blackboard piece positive and negative upset is more loaded down with trivial details, and need to account for larger area metope.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of adjustable blackboard is provided, this blackboard can not expand under the prerequisite of shared metope area, automatically realizes the positive and negative upset of blackboard.
The scheme that the present invention solve the technical problem is: a kind of adjustable blackboard, comprise blackboard frame and at least 2 split type, to be arranged in parallel blackboard pieces, on described blackboard frame, be provided with the front pushing mechanism that promotes the reach of blackboard piece, on front pushing mechanism, be provided with stepper motor and blackboard fixture block, blackboard piece is fixed on blackboard fixture block, stepper motor drives blackboard fixture block to rotate the upset that realizes blackboard piece positive and negative, and the gauge tap of front pushing mechanism and stepper motor is also set on blackboard frame.
Monoblock blackboard is divided into some blackboard pieces by the present invention, realizes 180 degree upsets of blackboard piece with stepper motor.Before upset, first with front pushing mechanism, blackboard piece is moved forward to obtain enough upset spaces.After upset, front pushing mechanism retracts original position by blackboard piece again.
As further improvement, described front pushing mechanism comprises connecting rod and lifting motor; One end of connecting rod is movably connected in the left and right sides of blackboard frame by bearing, all there is a connecting rod left and right sides of each blackboard piece, between the connecting rod of every side, have a montant to realize the synchronous interaction between connecting rod, the connecting rod of every side is flexibly connected by bearing with each self-corresponding montant; In lifting motor drive link, lift the reach that realizes blackboard piece.
This scheme provides a kind of front pushing mechanism simple in structure and stable.
As further improvement, described blackboard fixture block is positioned at blackboard piece 1/2nd At The Heights, and the length value of described connecting rod is greater than 1/2nd of blackboard tile height value.
This scheme makes blackboard fixture block stressed evenly, and the upset of Convenient blackboard piece.
As further improvement, on described blackboard frame, be provided with blackboard eraser, blackboard eraser vertically arranges, and the height of blackboard eraser is greater than the total height of all blackboard pieces.
Blackboard eraser is once mobile just can be the letter written with chalk wiped clean of whole blackboard.
As further improvement, on described blackboard frame, be provided with the ball-screw that blackboard eraser is moved left and right, ball-screw is driven by spindle motor, offers feed screw nut formula internal thread and realize and being threaded of ball-screw on blackboard eraser.
As further improving, described blackboard eraser is positioned at blackboard frame inner side, and described ball-screw is positioned at the bottom of blackboard frame inner side.
Blackboard eraser is positioned at blackboard frame inner side, and when wiping, chalk dust is blocked by blackboard piece substantially, and chalk dust can not splash everywhere, is conducive to teacher's health.
As further improvement, on described blackboard frame, be also provided with feed rod, the bottom of blackboard eraser is connected on ball-screw, and the top of blackboard eraser is enclosed within on feed rod.
Polished rod and ball-screw are used in conjunction with, and are conducive to improve the wiping effect of blackboard eraser.
As further improvement, described blackboard frame is furnished with bracing frame, the both sides up and down of bracing frame are provided with line slide rail, the both sides up and down of blackboard frame are provided with the slide block suitable with line slide rail, blackboard frame is fixed on bracing frame and can horizontally slips along bracing frame, and the inner side of bracing frame is provided with projection screen.
This scheme is not increasing under the prerequisite of effective metope, and by blackboard frame integrated moving, the projection screen of bracing frame inner side can reveal.Be particularly suitable for using in primary school teacher chamber.
As further improvement, on support frame as described above, be provided with stop nut, the slip of stop nut restriction slide block on line slide rail in the time that stop nut stretches out bracing frame.
Stop nut can stop the movement of blackboard frame on bracing frame, prevents the landing from bracing frame of blackboard frame simultaneously.
In sum, the invention solves and when traditional adjustable blackboard blackboard turning operation is loaded down with trivial details, blackboard wiping is wasted time and energy, descend slowly and lightly dust affects teacher student's physical and mental health, projection screen landing, cover the problems such as the most of area of blackboard, and simple in structure, shared metope is few, is adapted at little classroom and installs and uses.
Brief description of the drawings
Fig. 1 is structural representation of the present invention, has omitted bracing frame in figure;
Fig. 2 is the side structure schematic diagram while pushing away before pushing mechanism before the present invention, has omitted bracing frame in figure;
Fig. 3 is side structure schematic diagram when pushing mechanism is regained before the present invention, has omitted bracing frame in figure;
Fig. 4 is pushing mechanism another side structural representation before the present invention;
Fig. 5 is the structural representation in blackboard frame of the present invention front while moving to right;
Fig. 6 is the structural representation of blackboard frame of the present invention reverse side while moving to right.
In figure: 1, blackboard frame; 11, gauge tap; 12, bracing frame; 13, slide block; 14, projection screen; 15, stop nut; 2, blackboard piece; 3, front pushing mechanism; 31, connecting rod; 32, lifting motor; 33, bearing; 34, montant; 4, stepper motor; 5, blackboard fixture block; 6, blackboard eraser; 71, ball-screw; 72 spindle motors; 73, feed rod.
Detailed description of the invention
Embodiment 1
As shown in Fig. 5~6, adjustable blackboard comprises blackboard frame 1 and bracing frame 12, the both sides up and down of bracing frame 12 are provided with line slide rail, the both sides up and down of blackboard frame 1 are provided with the slide block suitable with line slide rail 13, blackboard frame 1 is fixed on bracing frame 12 and can horizontally slips along bracing frame 12, and the inner side of bracing frame 12 is provided with projection screen 14.On bracing frame 12, be provided with stop nut 15, stop nut 15 moves up, stop nut 15 limits the slip of slide block 13 on line slide rail while stretching out bracing frame 12.After stop nut 15 moves down, the freely slip on line slide rail of slide block 13.The back side of blackboard frame 1 has a separation layer to realize the isolation of blackboard piece 2 and projection screen 14, prevents the dust pollution projection screen 14 of chalk.
As shown in Figure 1, monoblock blackboard blackboard piece 2 split type by 3, that be arranged in parallel is formed by stacking up and down.The length of blackboard frame 1 is 1200mm, is highly 840mm.On blackboard frame 1, be provided with and promote the front pushing mechanism 3 that blackboard piece 2 moves forward, on front pushing mechanism 3, be provided with stepper motor 4 and blackboard fixture block 5.Blackboard fixture block 5 is positioned at blackboard piece 1/2nd two At The Height, and the length value of connecting rod 31 is greater than 1/2nd of blackboard piece 2 height values.The model of stepper motor 4 is 42HD0401-24.Blackboard piece 2 is fixed on blackboard fixture block 5, and stepper motor 4 drives blackboard fixture block 5 to rotate the upset that realizes blackboard piece 2 positive and negatives.
The gauge tap 11 of front pushing mechanism 3 and stepper motor 4 is also set on blackboard frame 1.
As shown in Fig. 2~4, front pushing mechanism 3 comprises connecting rod 31 and lifting motor 32.The length of connecting rod 31 is 200mm, one end of connecting rod 31 is movably connected in the left and right sides of blackboard frame 1 by bearing 33, all there is a connecting rod 31 left and right sides of each blackboard piece 2, between the connecting rod 31 of every side, have a montant 34 to realize the synchronous interaction between connecting rod 31, the connecting rod 31 of every side is flexibly connected by bearing 33 with each self-corresponding montant 34.Lifting motor 32 is Worm reduction motor, and its model is GW370-4.2.In lifting motor 32 drive link 31, lift the reach that realizes blackboard piece 2.Blackboard piece 2, montant 34 make front pushing mechanism 3 form an entirety, only need a lifting motor 32 can realize and will on all connecting rods 31, lift reach.
Wherein on the connecting rod 31 of a side, all there is a stepper motor 4, the corresponding stepper motor 4 of each blackboard fixture block 5, the end of blackboard fixture block 5 is flexibly connected by bearing 33 with the end of connecting rod 31.
As shown in Fig. 1, Fig. 6, the ball-screw 71, the feed rod 73 that on blackboard frame 1, are provided with blackboard eraser 6, blackboard eraser 6 is moved left and right.Blackboard eraser 6, ball-screw 71, feed rod 73 are all positioned at the inner side of blackboard frame 1, the top of blackboard eraser 6 is enclosed within on feed rod 73, ball-screw 71 is positioned at the bottom of blackboard frame 1, and the bottom of blackboard eraser 6 offers feed screw nut formula internal thread and realizes and being threaded of ball-screw 71.Ball-screw 71 is driven by spindle motor 72, and spindle motor 72 is also controlled by gauge tap 11.The height of blackboard eraser is 600mm, and blackboard eraser 6 vertically arranges, and the height of blackboard eraser 6 is greater than the total height of all blackboard pieces 2.

Claims (9)

1. an adjustable blackboard, comprise blackboard frame (1) and at least 2 split type, the blackboard piece (2) be arrangeding in parallel, it is characterized in that: on described blackboard frame (1), be provided with the front pushing mechanism (3) that promotes blackboard piece (2) reach, on front pushing mechanism (3), be provided with stepper motor (4) and blackboard fixture block (5), blackboard piece (2) is fixed on blackboard fixture block (5), stepper motor (4) drives blackboard fixture block (5) to rotate the upset that realizes blackboard piece (2) positive and negative, the gauge tap (11) of front pushing mechanism (3) and stepper motor (4) is also set on blackboard frame (1).
2. adjustable blackboard as claimed in claim 1, is characterized in that: described front pushing mechanism (3) comprises connecting rod (31) and lifting motor (32); One end of connecting rod (31) is movably connected in the left and right sides of blackboard frame (1) by bearing (33), all there is a connecting rod (31) left and right sides of each blackboard piece (2), between the connecting rod (31) of every side, have a montant (34) to realize the synchronous interaction between connecting rod (31), the connecting rod (31) of every side is flexibly connected by bearing (33) with each self-corresponding montant (34); In lifting motor (32) drive link (31), lift the reach that realizes blackboard piece (2).
3. adjustable blackboard as claimed in claim 2, it is characterized in that: described blackboard fixture block (5) is positioned at blackboard piece (2) 1/2nd At The Heights, the length value of described connecting rod (31) is greater than 1/2nd of blackboard piece (2) height value.
4. adjustable blackboard as claimed in claim 1, it is characterized in that: on described blackboard frame (1), be provided with blackboard eraser (6), blackboard eraser (6) vertically arranges, and the height of blackboard eraser (6) is greater than the total height of all blackboard pieces (2).
5. adjustable blackboard as claimed in claim 4, it is characterized in that: on described blackboard frame (1), be provided with the ball-screw (71) that blackboard eraser (6) is moved left and right, ball-screw (71) is driven by spindle motor (72), offers feed screw nut formula internal thread and realize and being threaded of ball-screw (71) on blackboard eraser (6).
6. adjustable blackboard as claimed in claim 5, is characterized in that: described blackboard eraser (6) is positioned at the inner side of blackboard frame (1), and described ball-screw (71) is positioned at the bottom of blackboard frame (1) inner side.
7. adjustable blackboard as claimed in claim 6, it is characterized in that: on described blackboard frame (1), be also provided with feed rod (73), it is upper that the bottom of blackboard eraser (6) is connected to ball-screw (71), and the top of blackboard eraser (6) is enclosed within on feed rod (73).
8. adjustable blackboard as claimed in claim 1, it is characterized in that: described blackboard frame (1) is furnished with bracing frame (12), the both sides up and down of bracing frame (12) are provided with line slide rail, the both sides up and down of blackboard frame (1) are provided with the slide block suitable with line slide rail (13), blackboard frame (1) is fixed on bracing frame (12) above and can horizontally slips along bracing frame (12), and the inner side of bracing frame (12) is provided with projection screen (14).
9. adjustable blackboard as claimed in claim 8, it is characterized in that: on support frame as described above (12), be provided with stop nut (15), the slip of stop nut (15) restriction slide block (13) on line slide rail in the time that stop nut (15) stretches out bracing frame (12).
CN201410211501.4A 2014-05-19 2014-05-19 Adjustable blackboard Pending CN104029541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410211501.4A CN104029541A (en) 2014-05-19 2014-05-19 Adjustable blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410211501.4A CN104029541A (en) 2014-05-19 2014-05-19 Adjustable blackboard

Publications (1)

Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104275968A (en) * 2014-10-27 2015-01-14 西安理工大学 Blackboard
CN110641203A (en) * 2019-10-09 2020-01-03 高威震 Notebook

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08216594A (en) * 1994-12-30 1996-08-27 Chang-Ho Jang Board for instruction
CN2298141Y (en) * 1997-08-04 1998-11-25 朱为栋 Turnover blackboard
CN1966282A (en) * 2006-11-24 2007-05-23 陕西科技大学 Turn-over type blackboard
CN101009064A (en) * 2006-01-25 2007-08-01 王孙聪 Double-side turning combined advertisement board
CN201149757Y (en) * 2007-12-27 2008-11-12 任稣萍 Louvered billboard
CN101402293A (en) * 2008-11-12 2009-04-08 陈继勇 Electric blackboard with electronic display screen
CN201494176U (en) * 2009-07-29 2010-06-02 张万军 Dual-purpose blackboard used for projecting and writing
CN203210940U (en) * 2013-04-16 2013-09-25 上海电机学院 Overturning type blackboard
CN203937387U (en) * 2014-05-19 2014-11-12 湖州师范学院 Adjustable blackboard

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08216594A (en) * 1994-12-30 1996-08-27 Chang-Ho Jang Board for instruction
CN2298141Y (en) * 1997-08-04 1998-11-25 朱为栋 Turnover blackboard
CN101009064A (en) * 2006-01-25 2007-08-01 王孙聪 Double-side turning combined advertisement board
CN1966282A (en) * 2006-11-24 2007-05-23 陕西科技大学 Turn-over type blackboard
CN201149757Y (en) * 2007-12-27 2008-11-12 任稣萍 Louvered billboard
CN101402293A (en) * 2008-11-12 2009-04-08 陈继勇 Electric blackboard with electronic display screen
CN201494176U (en) * 2009-07-29 2010-06-02 张万军 Dual-purpose blackboard used for projecting and writing
CN203210940U (en) * 2013-04-16 2013-09-25 上海电机学院 Overturning type blackboard
CN203937387U (en) * 2014-05-19 2014-11-12 湖州师范学院 Adjustable blackboard

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104275968A (en) * 2014-10-27 2015-01-14 西安理工大学 Blackboard
CN104275968B (en) * 2014-10-27 2016-01-27 西安理工大学 A kind of blackboard
CN110641203A (en) * 2019-10-09 2020-01-03 高威震 Notebook
CN110641203B (en) * 2019-10-09 2020-11-27 绍兴东雀纺织品有限公司 Notebook

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Application publication date: 20140910