CN204055056U - Multi-functional blackboard - Google Patents
Multi-functional blackboard Download PDFInfo
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- CN204055056U CN204055056U CN201420346754.8U CN201420346754U CN204055056U CN 204055056 U CN204055056 U CN 204055056U CN 201420346754 U CN201420346754 U CN 201420346754U CN 204055056 U CN204055056 U CN 204055056U
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- board
- fixed
- back side
- blackboard
- sliding block
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Abstract
The utility model relates to a kind of multi-functional blackboard, comprise a flat base and perpendicular to the framework of described base, being provided with two pieces in described framework perpendicular to described base and board parallel to each other, also comprising for the movable Liang Ge travel mechanism of two pieces of boards and two elevating mechanisms for moving up and down two pieces of boards; Each board back side is provided with at least one Wiping mechanism and a water spraying mechanism.The utility model advantage is, two pieces of blackboards are set, can move forward and backward, can oscilaltion, in lifting process, last blackboard can carry out automatic scrubbing and wiping to a rear blackboard, scrub effect is good, and can not dust be produced in wiping process, both do not pollute the environment, the healthy of people near blackboard can not be had influence on again.
Description
Technical field
The utility model relates to a kind of multi-functional blackboard.
Background technology
In prior art, common blackboard mainly contains three kinds, is fixed on the monolithic blackboard on metope, the monolithic blackboard that can slide up and down and can two block blackboards of movement alternatively up and down.These blackboards all need to carry out manual wipping after a procedure, not only waste time and energy, and also can produce a large amount of dust in wiping process, have certain harm to be also easy to residual on ground, form secondary pollution to wiping personnel health.Some new type blackboard also possesses automatic wiping device, but often wiping effect is poor, can not wiped clean completely, thus affects follow-up use.
Utility model content
The utility model provides a kind of multi-functional blackboard, efficiently solve exist in the blackboard of prior art need manual wipping, contaminated environment, automatic erasing effect is poor, affect the technical problems such as follow-up use.
For solving the problem, the utility model provides following technical scheme:
The utility model relates to a kind of multi-functional blackboard, comprise a flat base and perpendicular to the framework of described base, two pieces are provided with perpendicular to described base and board parallel to each other in described framework, also comprise the Liang Ge travel mechanism for movable two pieces of boards, and two elevating mechanisms for moving up and down two pieces of boards; Each board back side is provided with at least one Wiping mechanism, each Wiping mechanism comprises and is fixed on the described board back side and is parallel to a connecting cylinder of described base and is parallel to a blackboard eraser of described base, described connecting cylinder two ends are respectively equipped with the tilting pad being fixed on the described board back side, described connecting cylinder is just to the centre of each tilting pad, described tilting pad is provided with a circular arc guide groove, and two circular arc guide grooves correspond to each other; The described blackboard eraser back side is fixed with a long guide rod, and described long guide rod two ends lay respectively in described two circular arc guide grooves, and described long guide rod can slide along two circular arc guide grooves; Tilting pad outer surface is fan-shaped, and described blackboard eraser can slide along scalloped surface; Be provided with a rotating blackboard eraser axle in described connecting cylinder, be connected with an electromagnetism push-pull device at fixed between described blackboard eraser axle and described long guide rod, described electromagnetism push-pull device at fixed one end is articulated to described long guide rod, and its other end is fixed on described blackboard eraser axle.
Further, each board back side is provided with a water spraying mechanism, and described water spraying mechanism comprises the water tank and at least one shower nozzle that are arranged at described board upper rear portion, and each shower nozzle is by a cross current to described water tank, and described water pipe is provided with a control valve.
Further, described board upper rear portion is provided with the linear pattern fixed frame of a level, and at least one shower nozzle of same water spraying mechanism is evenly distributed on same fixed frame, and the upper end of described water tank sidewall is provided with a water inlet.
Further, described two pieces of boards are respectively the first board and the second board; The described first board back side is provided with one first infrared inductor, and described first board front is provided with one first infrared induction bar; The described second board back side is provided with one second infrared inductor, and described second board front is provided with one second infrared induction bar; Described first infrared inductor is corresponding with described second infrared induction bar, and described second infrared inductor is corresponding with described first infrared induction bar; The described first board back side is provided with one first control valve, the described second board back side is provided with one second control valve, described first infrared inductor is electrically connected to described first control valve, and described second infrared inductor is electrically connected to described second control valve; Electromagnetism push-pull device at fixed in the Wiping mechanism at the first board back side, is electrically connected to described first infrared inductor, and the electromagnetism push-pull device at fixed in the Wiping mechanism at the second board back side is electrically connected to described second infrared inductor.
Further, described first infrared induction bar is positioned at described first board edge, and described second infrared induction bar is positioned at described second board edge.
Further, described base two ends are respectively equipped with one group of double track guide rail perpendicular to described plane board, and the lower surface of described framework upper side frame is provided with the chute of two corresponding described double track guide rails of difference; Each elevating mechanism comprises the one group of double track guide rail and a chute that correspond to each other, described double track guide rail is provided with a sliding block that can be free to slide along described double track guide rail, is provided with a screw rod perpendicular to described base and parallel to each other and a support bar between described sliding block and described top shoe; Described screw rod is articulated to described sliding block by a lower bearing, and described screw rod is articulated to described top shoe by a upper bearing (metal), and described support bar lower end is fixed on described sliding block, described post upper and described chute separated from one another; One side of one board is fixed with the rising nut that at least one distributes up and down; Each rising nut is provided with a slide opening and a screw, and described screw is enclosed within described screw rod, and described screw rod can along threads turn in described screw; Described slide opening is enclosed within described support bar, and described support bar can slide in described slide opening; Described sliding block is provided with a motor, the output revolving shaft of described motor is fixed with a driving gear, and described screw rod lower end is fixed with the driven gear engaged with described driving gear.
Further, the inner side at described framework two ends is respectively equipped with a Miniature retractable motor of corresponding one group of double track guide rail, and the output shaft of each Miniature retractable motor is perpendicular to described base; Each travel mechanism comprises and is arranged at a sliding block on one group of double track guide rail and to the Miniature retractable motor should organizing double track guide rail, the output shaft of described Miniature retractable motor is fixed with one perpendicular to the linear guide rod of described base, described guide rod upper end is fixedly attached to described output shaft, and its lower end is articulated to described sliding block by a rocking bar.
Further, described rocking bar one end is articulated to described sliding block by a turning cylinder, and its other end is articulated to described guide rod by a pivot pin.
The utility model advantage is, two pieces of blackboards are set, can move forward and backward, can oscilaltion, in lifting process, last blackboard can carry out automatic scrubbing and wiping to a rear blackboard, scrub effect is good, and can not dust be produced in wiping process, both do not pollute the environment, the healthy of people near blackboard can not be had influence on again.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of multi-functional blackboard described in the utility model;
Fig. 2 is the inverse layer structure schematic diagram of multi-functional blackboard described in the utility model;
Fig. 3 is the side structure schematic diagram of multi-functional blackboard described in the utility model;
Fig. 4 is the Wiping mechanism structural representation of multi-functional blackboard described in the utility model;
Fig. 5 is the top view of a Wiping mechanism of multi-functional blackboard described in the utility model;
Fig. 6 is the structural representation of a water spraying mechanism of multi-functional blackboard described in the utility model;
Fig. 7 is the structural representation of an elevating mechanism of multi-functional blackboard described in the utility model;
Fig. 8 is the structural representation of screw portion in the elevating mechanism of multi-functional blackboard described in the utility model;
Fig. 9 is the structural representation of a travel mechanism of multi-functional blackboard described in the utility model.
Detailed description of the invention
Describe detailed description of the invention of the present utility model in detail below in conjunction with accompanying drawing, make the skill of this area
Art personnel more clearly understand how to realize the utility model.Describe the utility model although should be appreciated that in conjunction with its preferred specific embodiments, these embodiments are just set forth, instead of limit scope of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model relates to a kind of multi-functional blackboard, comprise the framework 2 that a flat base 1 and is fixed on base 1, two pieces are provided with perpendicular to base 1 and board 3 parallel to each other in framework 2, also comprise the Liang Ge travel mechanism 4 for movable two pieces of boards 3, and two elevating mechanisms 5 for moving up and down two pieces of boards 3, each board 3 back side is provided with at least one Wiping mechanism 6, and each board 3 back side is provided with a water spraying mechanism 7.
As shown in Figure 4, Figure 5.Each Wiping mechanism 6 comprises and is fixed on board 3 back side and is parallel to a connecting cylinder 61 of base 11 and is parallel to a blackboard eraser 62 of base 1, connecting cylinder 61 two ends are respectively equipped with the tilting pad 63 being fixed on board 3 back side, connecting cylinder 61 is just to the centre of each tilting pad 63, tilting pad 63 is provided with a circular arc guide groove 631, two circular arc guide grooves 631 and corresponds to each other; Blackboard eraser 62 back side is fixed with a long guide rod 621, and long guide rod 621 two ends lay respectively in two circular arc guide grooves 631, and long guide rod 621 can slide along two circular arc guide grooves 631; Tilting pad 63 outer surface is fan-shaped, and blackboard eraser 62 can slide along scalloped surface; Be provided with a rotating blackboard eraser axle 64 in connecting cylinder 61, be connected with an electromagnetism push-pull device at fixed 65 between blackboard eraser axle 64 and long guide rod 621, electromagnetism push-pull device at fixed 65 one end is articulated to long guide rod 621, and its other end is fixed on blackboard eraser axle 64.When board changed by needs, start Liang Ge travel mechanism 6, last board is retreated and is called new rear board, a rear board reach becomes new front board.Start two elevating mechanisms 5, front board is declined, rear board rises.The electromagnetism push-pull device at fixed 65 of board before starting, electromagnetism push-pull device at fixed 65 length, the blackboard eraser 62 promoting the last board back side can slide along scalloped surface, make the blackboard eraser 62 at the last board back side tangent with the front panel of a rear board, by the friction between blackboard eraser 62 and the front panel of board, the writing on the front panel of erasing board.
As shown in Figure 6, water spraying mechanism 7 comprises the water tank 71 and at least one shower nozzle 72 that are arranged at board 3 upper rear portion, and each shower nozzle 72 is communicated to water tank 71 by a water pipe 73, and water pipe 73 is provided with a control valve (not shown).Each board 3 back side is provided with a water spraying mechanism 7, and water spraying mechanism 7 comprises the water tank 71 and at least one shower nozzle 72 that are arranged at board 3 upper rear portion, and each shower nozzle 72 is communicated to water tank 71 by a water pipe 73, and water pipe 73 is provided with a control valve (not shown).At least one shower nozzle 72 of same water spraying mechanism 7 is evenly distributed on same level straight line, board 3 upper rear portion is provided with the linear pattern fixed frame 74 of a level, at least one shower nozzle 72 of same water spraying mechanism 7 is evenly distributed on same fixed frame 74, and the upper end of water tank 71 sidewall is provided with a water inlet 75.
As shown in Figure 1 and Figure 2, two pieces of boards 3 are respectively the first board 31 and the second board 32; First board 31 back side is provided with one first infrared inductor 311, first board 31 front and is provided with one first infrared induction bar 312; Second board 32 back side is provided with one second infrared inductor 321, second board 32 front and is provided with one second infrared induction bar 322; First infrared inductor 311 is corresponding with the second infrared induction bar 322, and the second infrared inductor 321 is corresponding with the first infrared induction bar 312; First board 31 back side is provided with one first control valve (not shown), second board 32 back side is provided with one second control valve (not shown), first infrared inductor 311 is electrically connected to the first control valve (not shown), and the second infrared inductor 322 is electrically connected to the second control valve (not shown).First infrared induction bar 312 is positioned at the first board 31 edge, and the second infrared induction bar 322 is positioned at the second board 32 edge.Electromagnetism push-pull device at fixed (not shown) in the Wiping mechanism at first board 31 back side, is electrically connected to the first infrared inductor 311; Electromagnetism push-pull device at fixed (not shown) in the Wiping mechanism at second board 32 back side, is electrically connected to the second infrared inductor 321.
Start two elevating mechanisms 5, front board is declined, rear board rises, in the process that two boards are staggered, and the infrared ray that the infrared inductor 311 or 321 at the front board back side sends, be irradiated on the infrared induction bar 322 or 312 of rear board, form the infrared ray of reflection, the infrared inductor at the front board back side receives the infrared ray of reflection, the control valve before starting in board back side water spraying mechanism 7, water tank 71 is flowed out by water pipe 73, sprays from multiple shower nozzle 72.In like manner, the infrared inductor at the front board back side receives the infrared ray of reflection, the electromagnetism push-pull device at fixed 65 of board before starting, electromagnetism push-pull device at fixed 65 length, the blackboard eraser 62 promoting the last board back side can along scalloped surface slide downward, make the blackboard eraser 62 at the last board back side tangent with the front panel of a rear board, by the friction between blackboard eraser 62 and the front panel of rear board, the writing on the front panel of the rear board of erasing.Under having current in wiping process, therefore dust recycling can not be produced.
As shown in Fig. 2, Fig. 7, Fig. 8, base 1 two ends are respectively equipped with one group of double track guide rail 51 perpendicular to plane board 3, and the lower surface of framework 2 upper side frame is provided with the chute 52 of two corresponding double track guide rails 51 of difference; Each elevating mechanism 5 comprises the one group of double track guide rail 51 and a chute 52 that correspond to each other, and double track guide rail 51 is provided with a sliding block 53 that can be free to slide along double track guide rail 51, is provided with a top shoe 60 that can be free to slide along chute 52 in chute 52; Screw rod 54 and a support bar 55 perpendicular to base 1 and parallel to each other is provided with between sliding block 53 and top shoe 60; Screw rod 54 is articulated to sliding block 53 by a lower bearing 541, and screw rod 54 is articulated to top shoe 60 by a upper bearing (metal) 542, and support bar 55 lower end is fixed on sliding block 53, support bar 55 upper end and chute 52 separated from one another; One side of one board 3 is fixed with the rising nut 56 that at least one distributes up and down; Each rising nut 56 is provided with a slide opening (not shown) and a screw (not shown), and described screw is enclosed within screw rod 54, and screw rod 54 can along threads turn in described screw; Described slide opening is enclosed within support bar 55, and support bar 55 can slide in described slide opening; Sliding block 53 is provided with a motor 57, the output revolving shaft 571 of motor 57 is fixed with a driving gear 58, and screw rod 54 lower end is fixed with the driven gear 59 engaged with driving gear 58.
When user has the demand of blackboard movable up and down, starter motor 57, motor 57 drives screw rod 54 to rotate by driving gear 58 and driven gear 59, and support bar 55 is guide post, guarantees that rising nut 56 can not be followed screw rod 54 and be rotated together.In screw rod 54 rotation process, the height of rising nut 56 rises or declines, thus drives the height of board to rise or decline.
As shown in Figure 9, the inner side at framework 2 two ends is respectively equipped with a Miniature retractable motor 41 of corresponding one group of double track guide rail 51, and the output shaft (not shown) of each Miniature retractable motor 41 is perpendicular to base 1; Each travel mechanism 4 comprises and is arranged at a sliding block 53 on one group of double track guide rail 51 and to the Miniature retractable motor 41 should organizing double track guide rail 51, the output shaft (not shown) of Miniature retractable motor 41 is fixed with one perpendicular to the linear guide rod 42 of base 1, guide rod 42 upper end is fixedly attached to described output shaft, and its lower end is articulated to sliding block 53 by a rocking bar 43.Rocking bar 43 one end is articulated to sliding block 53 by a turning cylinder 44, and its other end is articulated to guide rod 42 by a pivot pin 45.When user has the demand of movable blackboard, start Miniature retractable motor 41, the guide rod 42 below Miniature retractable motor 41 can pull sliding block 53 advance in double track guide rail 51 or retreat.Start Miniature retractable motor 41, when guide rod 42 rises, it is anterior that the sliding block 53 corresponding with it is pulled to double track guide rail 51, thus drive board 3 to move forward; When guide rod 42 declines, the sliding block 53 corresponding with it is pushed into double track guide rail 51 rear portion, thus drives board 3 to move backward.
The utility model advantage is, two pieces of blackboards are set, can move forward and backward, can oscilaltion, in lifting process, last blackboard can carry out automatic scrubbing and wiping to a rear blackboard, scrub effect is good, and can not dust be produced in wiping process, both do not pollute the environment, the healthy of people near blackboard can not be had influence on again.
The above is only preferred embodiment of the present utility model; should be understood that; those skilled in the art can also make some improvements and modifications under the prerequisite not departing from the utility model principle, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a multi-functional blackboard, comprise the framework that a flat base and is fixed on described base, two pieces are provided with perpendicular to described base and board parallel to each other in described framework, it is characterized in that, also comprise the Liang Ge travel mechanism for movable two pieces of boards, and two elevating mechanisms for moving up and down two pieces of boards; Each board back side is provided with at least one Wiping mechanism, each Wiping mechanism comprises and is fixed on the described board back side and is parallel to a connecting cylinder of described base and is parallel to a blackboard eraser of described base, described connecting cylinder two ends are respectively equipped with the tilting pad being fixed on the described board back side, described connecting cylinder is just to the centre of each tilting pad, described tilting pad is provided with a circular arc guide groove, and two circular arc guide grooves correspond to each other; The described blackboard eraser back side is fixed with a long guide rod, and described long guide rod two ends lay respectively in described two circular arc guide grooves, and described long guide rod can slide along two circular arc guide grooves; Tilting pad outer surface is fan-shaped, and described blackboard eraser can slide along scalloped surface; Be provided with a rotating blackboard eraser axle in described connecting cylinder, be connected with an electromagnetism push-pull device at fixed between described blackboard eraser axle and described long guide rod, described electromagnetism push-pull device at fixed one end is articulated to described long guide rod, and its other end is fixed on described blackboard eraser axle.
2. multi-functional blackboard as claimed in claim 1, it is characterized in that, each board back side is provided with a water spraying mechanism, described water spraying mechanism comprises the water tank and at least one shower nozzle that are arranged at described board upper rear portion, each shower nozzle is by a cross current to described water tank, and described water pipe is provided with a control valve.
3. multi-functional blackboard as claimed in claim 2, it is characterized in that, described board upper rear portion is provided with the linear pattern fixed frame of a level, and at least one shower nozzle of same water spraying mechanism is evenly distributed on same fixed frame, and the upper end of described water tank sidewall is provided with a water inlet.
4. multi-functional blackboard as claimed in claim 2, it is characterized in that, described two pieces of boards are respectively the first board and the second board; The described first board back side is provided with one first infrared inductor, and described first board front is provided with one first infrared induction bar; The described second board back side is provided with one second infrared inductor, and described second board front is provided with one second infrared induction bar; Described first infrared inductor is corresponding with described second infrared induction bar, and described second infrared inductor is corresponding with described first infrared induction bar; The described first board back side is provided with one first control valve, the described second board back side is provided with one second control valve, described first infrared inductor is electrically connected to described first control valve, and described second infrared inductor is electrically connected to described second control valve; Electromagnetism push-pull device at fixed in the Wiping mechanism at the first board back side, is electrically connected to described first infrared inductor; Electromagnetism push-pull device at fixed in the Wiping mechanism at the second board back side, is electrically connected to described second infrared inductor.
5. multi-functional blackboard as claimed in claim 4, it is characterized in that, described first infrared induction bar is positioned at described first board edge, and described second infrared induction bar is positioned at described second board edge.
6. multi-functional blackboard as claimed in claim 1, it is characterized in that, described base two ends are respectively equipped with one group of double track guide rail perpendicular to described plane board, and the lower surface of described framework upper side frame is provided with the chute of two corresponding described double track guide rails of difference; Each elevating mechanism comprises the one group of double track guide rail and a chute that correspond to each other, and described double track guide rail is provided with a sliding block that can be free to slide along described double track guide rail, is provided with a top shoe that can be free to slide along described chute in described chute; A screw rod perpendicular to described base and parallel to each other and a support bar is provided with between described sliding block and described top shoe; Described screw rod is articulated to described sliding block by a lower bearing, and described screw rod is articulated to described top shoe by a upper bearing (metal); Described support bar lower end is fixed on described sliding block, described post upper and described chute separated from one another; One side of one board is fixed with the rising nut that at least one distributes up and down; Each rising nut is provided with a slide opening and a screw, and described screw is enclosed within described screw rod, and described screw rod can along threads turn in described screw; Described slide opening is enclosed within described support bar, and described support bar can slide in described slide opening; Described sliding block is provided with a motor, the output revolving shaft of described motor is fixed with a driving gear, and described screw rod lower end is fixed with the driven gear engaged with described driving gear.
7. multi-functional blackboard as claimed in claim 6, it is characterized in that, the inner side at described framework two ends is respectively equipped with a Miniature retractable motor of corresponding one group of double track guide rail, and the output shaft of each Miniature retractable motor is perpendicular to described base; Each travel mechanism comprises and is arranged at a sliding block on one group of double track guide rail and to the Miniature retractable motor should organizing double track guide rail, the output shaft of described Miniature retractable motor is fixed with one perpendicular to the linear guide rod of described base, described guide rod upper end is fixedly attached to described output shaft, and its lower end is articulated to described sliding block by a rocking bar.
8. multi-functional blackboard as claimed in claim 7, it is characterized in that, described rocking bar one end is articulated to described sliding block by a turning cylinder, and its other end is articulated to described guide rod by a pivot pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346754.8U CN204055056U (en) | 2014-06-27 | 2014-06-27 | Multi-functional blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346754.8U CN204055056U (en) | 2014-06-27 | 2014-06-27 | Multi-functional blackboard |
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| CN204055056U true CN204055056U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420346754.8U Expired - Fee Related CN204055056U (en) | 2014-06-27 | 2014-06-27 | Multi-functional blackboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106090522A (en) * | 2016-07-28 | 2016-11-09 | 深圳中雅机电实业有限公司 | In acoustic filter sound absorber mounting structure and with the acoustic filter of this structure |
| CN106157741A (en) * | 2016-09-13 | 2016-11-23 | 刘翔 | A kind of teaching board selectivity display device |
| CN106205287A (en) * | 2016-09-13 | 2016-12-07 | 刘翔 | A kind of new teaching board display device |
| CN106249376A (en) * | 2016-09-13 | 2016-12-21 | 范全军 | A kind of plane mirror loading attachment |
| CN106263861A (en) * | 2016-09-13 | 2017-01-04 | 范全军 | A kind of novel museum famous painting exhibition device |
| CN106263862A (en) * | 2016-09-13 | 2017-01-04 | 范全军 | A kind of museum famous painting selectivity exhibition device |
| CN106324791A (en) * | 2016-09-13 | 2017-01-11 | 范全军 | Novel flat mirror installation device |
| CN106361068A (en) * | 2016-09-13 | 2017-02-01 | 范全军 | Improved type museum famous painting exhibition device |
| CN106361207A (en) * | 2016-09-13 | 2017-02-01 | 范盛林 | Public paper roll holder device facilitating selective replacement |
| CN106405784A (en) * | 2016-09-13 | 2017-02-15 | 范全军 | Dust-proof plane mirror loading device |
| CN106541757A (en) * | 2016-10-16 | 2017-03-29 | 林姝霓 | A kind of teaching of senior high school blackboard automatic flushing device |
| CN107259958A (en) * | 2016-09-13 | 2017-10-20 | 合肥龙精灵信息技术有限公司 | It is a kind of to select the mail chute device of storage and safety |
| CN110667286A (en) * | 2019-11-14 | 2020-01-10 | 刘楚香 | Independent lifting blackboard |
| CN111739353A (en) * | 2020-06-23 | 2020-10-02 | 上海电机学院 | Myopia-preventing writing board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090522A (en) * | 2016-07-28 | 2016-11-09 | 深圳中雅机电实业有限公司 | In acoustic filter sound absorber mounting structure and with the acoustic filter of this structure |
| CN106324791A (en) * | 2016-09-13 | 2017-01-11 | 范全军 | Novel flat mirror installation device |
| CN106361207A (en) * | 2016-09-13 | 2017-02-01 | 范盛林 | Public paper roll holder device facilitating selective replacement |
| CN106249376A (en) * | 2016-09-13 | 2016-12-21 | 范全军 | A kind of plane mirror loading attachment |
| CN106263861A (en) * | 2016-09-13 | 2017-01-04 | 范全军 | A kind of novel museum famous painting exhibition device |
| CN106263862A (en) * | 2016-09-13 | 2017-01-04 | 范全军 | A kind of museum famous painting selectivity exhibition device |
| CN106157741A (en) * | 2016-09-13 | 2016-11-23 | 刘翔 | A kind of teaching board selectivity display device |
| CN106361068A (en) * | 2016-09-13 | 2017-02-01 | 范全军 | Improved type museum famous painting exhibition device |
| CN106205287A (en) * | 2016-09-13 | 2016-12-07 | 刘翔 | A kind of new teaching board display device |
| CN106405784A (en) * | 2016-09-13 | 2017-02-15 | 范全军 | Dust-proof plane mirror loading device |
| CN107259958A (en) * | 2016-09-13 | 2017-10-20 | 合肥龙精灵信息技术有限公司 | It is a kind of to select the mail chute device of storage and safety |
| CN106541757A (en) * | 2016-10-16 | 2017-03-29 | 林姝霓 | A kind of teaching of senior high school blackboard automatic flushing device |
| CN106541757B (en) * | 2016-10-16 | 2017-12-26 | 新昌雪莲花轴承有限公司 | A kind of teaching of senior high school blackboard automatic flushing device |
| CN110667286A (en) * | 2019-11-14 | 2020-01-10 | 刘楚香 | Independent lifting blackboard |
| CN111739353A (en) * | 2020-06-23 | 2020-10-02 | 上海电机学院 | Myopia-preventing writing board |
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