CN104070894A - Magnetic writing board with handwriting erasing mechanism - Google Patents
Magnetic writing board with handwriting erasing mechanism Download PDFInfo
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- CN104070894A CN104070894A CN201410290839.3A CN201410290839A CN104070894A CN 104070894 A CN104070894 A CN 104070894A CN 201410290839 A CN201410290839 A CN 201410290839A CN 104070894 A CN104070894 A CN 104070894A
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Abstract
The invention discloses a magnetic writing board with a handwriting erasing mechanism and belongs to the technical field of teaching aids. The magnetic writing board with the handwriting erasing mechanism comprises a box body, a magnetic display panel is fixed onto the front surface of the box body, the handwriting erasing mechanism is arranged inside the box body and comprises a guide rail fixed inside the box body, the guide rail is arranged in the length direction of the magnetic display panel, a sliding block is arranged on the guide rail, the front of the sliding block is fixedly provided with a magnetic bar support, magnetic bars are fixed onto the magnetic support and are close to the back of the magnetic display panel, the length of the magnetic bar is almost identical with the width of the magnetic display board, the sliding block is connected with a linear motion transmission mechanism driven by a driving device. The magnetic writing board with the handwriting erasing mechanism is dust-pollution-free, environmentally-friendly and healthy due to utilization of the magnetic bars and a magnetic eraser; can achieve fast-erasing of the whole screen through comprehensive application of the electromechanical integration technology, saves physical strength through remote control and manual point control modes, and can be utilized and popularized in areas lack of electric power due to the fact that a manual mode needs no power supply.
Description
Technical field
The present invention relates to a kind of magnetic writing board for demonstrating, belong to teaching aid technical field.
Background technology
At present, be mainly blackboard for the clipboard using of demonstrating, impart knowledge to students, from making material and use principle, be broadly divided into three classes:
The one, normal blackboard.From making material, current the most widely used be green plate.It is formed by surface panel, sandwich material, backboard collocation, scribbles figure layer on surface, is blackish green, therefore gains the name.What secondly use was more is Glass blackboard, and what this blackboard adopted is that 5mm and above glass plate are made, and surface is through fining-off, and the back side is coated with blacking, now existing relevant production standard.In addition,, in part low developed area, also there is wooden blackboard and cement blackboard.No matter how the making material of normal blackboard changes, and all continues to use the mode that chalk-writing, blackboard eraser are wiped in use principle.What the disadvantage of this using method was dust to Faculty and Students is healthy unfavorable.
The 2nd, dustless class blackboard.Write and the requirement of safety and environmental protection in order to adapt to specialty, produce gradually special writing panel material, can finish writing well wiping does not have again dust pollution, and common market product has common blank, specialty to write a grade blank, flannelette bulletin board, form marking-off plate and environment-friendly writing film etc.In use principle, such dust-free blackboard mainly uses various oil fountain pens to substitute traditional chalk.Though this oil fountain pen, compared with chalk environmental protection, also exists, water-color paintbrush person's handwriting is dry the shortcoming such as is difficult to wipe, and not yet promotes the use of at classroom teaching at present, is mainly used in the occasions such as office, training, mini-session.
The 3rd, electronic whiteboard.Electronic whiteboard is the new high-tech product that has collected the multiple high-tech means research and development such as most advanced and sophisticated electronic technology, software engineering, uses in conjunction with computer and projector, can realize with no paper office and teaching.Except meeting the most basic writing demand, up-to-date electronic whiteboard also has interactive function, can sensual pleasure provide efficient abundant images serve variously.Divide according to use principle, electronic whiteboard can be divided into pressure-sensitive, ultrasonic type, electromagnetic type, infrared type, laser type electronic whiteboard etc.Such " blackboard " advanced technology, can attract student's notice, teaching efficiency is good, it is the developing direction of blackboard from now on, but in use existence need to build special zooming classroom, be equipped with complete teaching equipment, input cost is high, makes electronic whiteboard still difficult universal in common classroom at present.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the invention provides a kind of magnetic writing board with handwriting erasing mechanism, both without chalk also without oil pen, can purify classroom environment, can reduce again use cost.
The present invention is achieved through the following technical solutions: a kind of magnetic writing board with handwriting erasing mechanism, it comprises casing, the front surface of casing is fixed with magnetic display board, magnetic display board is installed under magnetic sheet top board and magnetic sheet between liner plate, handwriting erasing mechanism is installed in described casing, handwriting erasing mechanism comprises the guide rail being fixed in casing, guide rail is along the length direction setting of magnetic display board, on guide rail, be slidably fitted with slide block, before slide block, be fixed with magnetic stripe support, on magnetic stripe support, be fixed with magnetic stripe, magnetic stripe is near after magnetic display board, the length of magnetic stripe is suitable with the width of magnetic display board, on described slide block, be connected with rectilinear motion transmission mechanism, rectilinear motion transmission mechanism is driven by drive unit.
Described rectilinear motion transmission mechanism comprises the synchronous pulley that is arranged on described guide rail two ends, on synchronous pulley, engagement is provided with Timing Belt, Timing Belt is walked around and is formed anterior layer and rear layer from synchronous pulley, the synchronous pulley of anterior layer is fixed on described slide block, the middle part of slide block was manufactured with holes, the synchronous pulley of rear layer, from holes passing excessively, is equipped with driving shaft on the synchronous pulley of the arbitrary end of guide rail, and driving shaft is connected with drive unit.
Described drive unit is motor, motor is fixed on casing by electric machine support, the output shaft of motor is connected with described driving shaft by shaft coupling, and the control circuit of controlling motor action is housed in casing, and the end positions of described guide rail is provided with limit switch.
Described rectilinear motion transmission mechanism comprises the support of bearing IV that is arranged on described guide rail two ends, between support of bearing IV, leading screw is installed, the middle part of described slide block is manufactured with screwed hole, leading screw is from described screwed hole through forming worm drive pair, and one end of leading screw is stretched out with drive unit and is connected.
Described drive unit is motor, motor is fixed on casing with described leading screw on same axis, the output shaft of motor is connected with one end of leading screw by shaft coupling, and the control circuit of controlling motor action is housed in casing, and the end positions of described guide rail is provided with limit switch.
Described control circuit comprises single-chip microcomputer, and be connected with single-chip microcomputer respectively for the motor drive module of drive motors motion, for the inching button of start and stop motor, for the remote control signal receiving module of start and stop motor, also comprise that two described limit switches are connected with single-chip microcomputer respectively to the power module of described single-chip microcomputer, motor drive module and remote control signal receiving module power supply.
Described drive unit is manual driving device, manual driving device comprises hand-operated rotating shaft, on the rotating sidewall that is fixed on described casing of hand-operated rotating shaft, one end of hand-operated rotating shaft is connected with the power intake of rectilinear motion transmission mechanism, and the other end of hand-operated rotating shaft passes handwheel is installed from casing.
Described drive unit also comprises manual driving device, manual driving device comprises hand-operated rotating shaft, on the rotating sidewall that is fixed on described casing of hand-operated rotating shaft, the lower end of one end of hand-operated rotating shaft and described driving shaft is connected with a joggle by bevel gear pair, the other end of hand-operated rotating shaft passes handwheel is installed from casing, between handwheel and hand-operated rotating shaft, arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I and flower keyboard II, flower keyboard I is fixed on hand-operated rotating shaft, flower keyboard II is fixed on handwheel, the external part of hand-operated rotating shaft is fixed with the axis of guide, the end of the axis of guide is fixed with catch assembly, the rigid integral sliding of handwheel and flower keyboard II composition is arranged on the axis of guide, between flower keyboard I and flower keyboard II, spring is installed.
Described drive unit also comprises manual driving device, manual driving device comprises hand-operated rotating shaft, on the rotating sidewall that is fixed on described casing of hand-operated rotating shaft, one end of hand-operated rotating shaft is connected by shaft coupling with the other end of described leading screw, the other end of hand-operated rotating shaft passes handwheel is installed from casing, between handwheel and hand-operated rotating shaft, arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I and flower keyboard II, flower keyboard I is fixed on hand-operated rotating shaft, flower keyboard II is fixed on handwheel, the external part of hand-operated rotating shaft is fixed with the axis of guide, the end of the axis of guide is fixed with catch assembly, the rigid integral sliding of handwheel and flower keyboard II composition is sleeved on the axis of guide, between flower keyboard I and flower keyboard II, spring is installed.
It is plane, both sides, the top integral section with magnetic stripe mounting groove that described magnetic stripe rack making becomes bottom, and described magnetic stripe has two, and two magnetic stripes embed respectively in the magnetic stripe mounting groove of both sides.
The invention has the beneficial effects as follows:
1, the present invention is magnetic writing board, writes use magnetic pen, wipes and uses magnetic stripe and magnetic blackboard eraser, no dust pollution, environment protection health;
2, can adopt the magnetic drawing that resolution ratio is higher;
3, integrated use electromechanical integration technology, can realize whole screen and wipe fast, remote control, manually put prosecutor formula save muscle power, manual mode, without supply of electric power, can be promoted the use of in power shortages area;
4, once investment, without follow-up purchase chalk, oil fountain pen, economizes on the use of funds.
Brief description of the drawings
The present invention is further described according to drawings and embodiments below.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the B-B profile of Fig. 1;
Fig. 3 is the A-A profile of Fig. 1;
Fig. 4 is the C-C profile of Fig. 1;
Fig. 5 is the D place partial enlarged drawing of Fig. 1;
Fig. 6 is control circuit schematic diagram of the present invention;
Fig. 7 is another embodiment of the present invention structural representation;
Fig. 8 is the E-E profile of Fig. 7.
In figure, 1, limit switch, 2, Timing Belt, 3, synchronous pulley, 4, belt shaft, 5, support of bearing I, 6, guide rail, 7, screw, 8, slide block, 8-1, roller, 8-2, cross with holes, 8-3, screwed hole, 9, magnetic stripe support, 9-1, magnetic stripe mounting groove, 10, magnetic stripe, 11, shaft coupling, 12, electric machine support, 13, motor, 14, control circuit, 15, driving shaft, 15-1, bevel gear I, 16, support of bearing II, 17, manual driving device, 17-1, hand-operated rotating shaft, 17-2, pin I, 17-3, flower keyboard I, 17-4, spring, 17-5, flower keyboard II, 17-6, pin II, 17-7, catch assembly, 17-8, handwheel, 17-9, the axis of guide, 17-10, bevel gear II, 18, casing, 18-1, through hole, 19, magnetic sheet top board, 20, magnetic display board, 21, inching button, 22, liner plate under magnetic sheet, 23, support of bearing III, 24, support of bearing IV, 25, leading screw.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
As accompanying drawing Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of magnetic writing board with handwriting erasing mechanism shown in Fig. 7, it comprises casing 18, the front surface of casing 18 is fixed with magnetic display board 20, magnetic display board 20 is installed under magnetic sheet top board 19 and magnetic sheet between liner plate 22, in described casing 18, handwriting erasing mechanism is installed, handwriting erasing mechanism comprises the guide rail 6 being fixed in casing 18, guide rail 6 is along the length direction setting of magnetic display board 20, on guide rail 6, be slidably fitted with slide block 8, roller 8-1 is equipped with in the upper and lower both sides, rear portion of slide block 8, the upper and lower sides of guide rail 6 is manufactured with protruding wheel track, the wheel track sliding connection of the upper and lower sides of roller 8-1 and guide rail 6, roller 8-1 can have four or more, be distributed in the upper and lower both sides, rear portion of slide block 8, play the effect of supporting and reducing resistance to sliding.Before slide block 8, be fixed with magnetic stripe support 9, on magnetic stripe support 9, be fixed with magnetic stripe 10, described magnetic stripe 10 has two, two magnetic stripes 10 are separately fixed at the both sides above of magnetic stripe support 9, two magnetic stripes can strengthen wipes effect, and magnetic stripe 10 is near after magnetic display board 20, and the width of the length of magnetic stripe 10 and magnetic display board 20 is suitable, on described slide block 8, be connected with rectilinear motion transmission mechanism, rectilinear motion transmission mechanism is driven by drive unit.
The first embodiment: as Fig. 1, shown in Fig. 2, described rectilinear motion transmission mechanism comprises the synchronous pulley 3 that is arranged on described guide rail 6 two ends, the wheel shaft of the synchronous pulley 3 at two ends is arranged in casing by support of bearing I 5 and support of bearing II 16 respectively, on synchronous pulley 3, engagement is provided with Timing Belt 2, Timing Belt 2 is walked around and is formed anterior layer and rear layer from synchronous pulley 3, the synchronous pulley 3 of anterior layer is fixed on described slide block 8 by screw 7, the middle part of slide block 8 was manufactured with 8-2 with holes, the synchronous pulley 3 of rear layer passes from crossing 8-2 with holes, on the synchronous pulley 3 of guide rail 6 arbitrary ends, driving shaft 15 is housed, driving shaft 15 is connected with drive unit.
Further, described drive unit is motor 13, motor 13 is fixed on casing 18 by electric machine support 12, the output shaft of motor 13 is connected with described driving shaft 15 by shaft coupling 11, in casing 18, be equipped with and control the control circuit 14 that motor 13 moves, the end positions of described guide rail 6 is provided with limit switch 1.
After starter motor, synchronous pulley 3 rotates, and drives Timing Belt 2 to move, and the Timing Belt 2 on upper strata is with movable slider 8 to do left and right rectilinear motion, thereby realizes the left and right erase feature of magnetic stripe 10.In the time that magnetic stripe 10 moves to limit switch 1 position at guide rail 6 two ends, limit switch 1, to single-chip microcomputer sender, is controlled start and stop or the rotating of motor.
The second embodiment: as shown in Figure 7, Figure 8, described rectilinear motion transmission mechanism comprises the support of bearing IV 24 that is arranged on described guide rail 6 two ends, leading screw 25 is installed between support of bearing IV 24, the middle part of described slide block 8 is manufactured with screwed hole 8-3, leading screw 25 is from described screwed hole 8-3 through forming worm drive pair, and one end of leading screw 25 is stretched out with drive unit and is connected.
Further, described drive unit is motor 13, motor 13 is fixed on casing 18 with described leading screw 25 on same axis, the output shaft of motor 13 is connected with one end of leading screw 25 by shaft coupling 11, in casing 18, be equipped with and control the control circuit 14 that motor 13 moves, the end positions of described guide rail 6 is provided with limit switch 1.
After starter motor, leading screw 25 rotates, and does left and right rectilinear motion by screwfeed band movable slider 8, thereby realizes the left and right erase feature of magnetic stripe 10.In the time that magnetic stripe 10 moves to limit switch 1 position at guide rail 6 two ends, limit switch 1, to single-chip microcomputer sender, is controlled start and stop or the rotating of motor.
As shown in Figure 6, control circuit 14 in above-mentioned several embodiment comprises single-chip microcomputer, and be connected with single-chip microcomputer respectively for the motor drive module of drive motors motion, for the inching button 21 of start and stop motor, for the remote control signal receiving module of start and stop motor, also comprise that two described limit switches 1 are connected with single-chip microcomputer respectively to the power module of described single-chip microcomputer, motor drive module and remote control signal receiving module power supply.
Drive unit in above-mentioned several embodiment also can adopt separately manual driving device 17, as shown in Figure 5, on the sidewall of described casing 18, be manufactured with through hole 18-1, manual driving device 17 comprises hand-operated rotating shaft 17-1, one end of hand-operated rotating shaft 17-1 is connected with the power intake of rectilinear motion transmission mechanism, and the other end of hand-operated rotating shaft 17-1 passes handwheel 17-8 is installed from through hole 18-1.Hand-operated rotating shaft 17-1 can carry on a shoulder pole in the support of bearing III 23 in casing by bearing, also can in through hole 18-1, bearing be installed.Rotate handwheel and can drive transmission mechanism action, realize the left and right erase feature of magnetic stripe 10, can stop at any time.
In above-mentioned the first embodiment, described drive unit can also comprise manual driving device 17 simultaneously, manual driving device 17 comprises hand-operated rotating shaft 17-1, on the rotating sidewall that is fixed on described casing 18 of hand-operated rotating shaft 17-1, the lower end of one end of hand-operated rotating shaft 17-1 and described driving shaft 15 is connected with a joggle by bevel gear pair, be arranged on bevel gear II 17-10 and the bevel gear I 15-1 that is arranged on driving shaft 15 lower ends on hand-operated rotating shaft 17-1, the other end of hand-operated rotating shaft 17-1 passes handwheel 17-8 is installed from casing 18, between handwheel 17-8 and hand-operated rotating shaft 17-1, arrangement of clutch is housed, arrangement of clutch is in order to coordinate motor to use.Arrangement of clutch comprises intermeshing flower keyboard I 17-1 and flower keyboard II 17-5, flower keyboard I 17-1 is fixed on hand-operated rotating shaft 17-1 by pin I 17-2, flower keyboard II 17-5 is fixed on handwheel 17-8 by pin II 17-6, the external part of hand-operated rotating shaft 17-1 is fixed with axis of guide 17-9, the end of axis of guide 17-9 is fixed with catch assembly 17-7, it is upper that the rigid integral sliding of handwheel 17-8 and flower keyboard II 17-5 composition is arranged on axis of guide 17-9, between flower keyboard I 17-1 and flower keyboard II 17-5, spring 17-4 is installed.When erasing apparatus does not use, or when motor action, between flower keyboard I 17-1 and flower keyboard II 17-5, backed down by spring, in normally open, handwheel separates with hand-operated rotating shaft 17-1, electric machine rotation and handwheel does not turn, and handwheel is unaffected.Need to use manual mode time, press handwheel, flower keyboard I 17-1 and flower keyboard II 17-5 are meshed, handwheel is combined with hand-operated rotating shaft 17-1, rotate handwheel and can drive the driving shaft 15 of transmission device to rotate, realize the left and right erase feature of magnetic stripe 10, can stop at any time.
In above-mentioned the second embodiment, described drive unit can also comprise manual driving device 17 simultaneously, manual driving device 17 comprises hand-operated rotating shaft 17-1, on the rotating sidewall that is fixed on described casing 18 of hand-operated rotating shaft 17-1, one end of hand-operated rotating shaft 17-1 is connected by shaft coupling with the other end of described leading screw 25, with reference to the position of Fig. 7, motor and hand gear can be arranged on respectively the two ends of leading screw, the other end of hand-operated rotating shaft 17-1 passes handwheel 17-8 is installed from casing 18, between handwheel 17-8 and hand-operated rotating shaft 17-1, arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I 17-1 and flower keyboard II 17-5, flower keyboard I 17-1 is fixed on hand-operated rotating shaft 17-1 by pin I 17-2, flower keyboard II 17-5 is fixed on handwheel 17-8 by pin II 17-6, the external part of hand-operated rotating shaft 17-1 is fixed with axis of guide 17-9, the end of axis of guide 17-9 is fixed with catch assembly 17-7, the rigid integral sliding of handwheel 17-8 and flower keyboard II 17-5 composition is sleeved on axis of guide 17-9, between flower keyboard I 17-1 and flower keyboard II 17-5, spring 17-4 is installed.When erasing apparatus does not use, or when motor action, between flower keyboard I 17-1 and flower keyboard II 17-5, backed down by spring, in normally open, handwheel separates with hand-operated rotating shaft 17-1, electric machine rotation and handwheel does not turn, and handwheel is unaffected.Need to use manual mode time, press handwheel, flower keyboard I 17-1 and flower keyboard II 17-5 are meshed, handwheel is combined with hand-operated rotating shaft 17-1, rotates handwheel and can drive leading screw 25 to rotate, and realizes the left and right erase feature of magnetic stripe 10, can stop at any time.
As shown in Figure 3, described magnetic stripe support 9 is made into bottom for plane, both sides, top are with the integral section of magnetic stripe mounting groove 9-1, and described magnetic stripe 10 has two, and two magnetic stripes 10 embed respectively in the magnetic stripe mounting groove 9-1 of both sides.This mode is easy for installation, and structure is light.
The whole screen erasing blackboard of remote control mode content: the sending controling instruction that uses a teleswitch is to the remote control signal receiving module in control circuit, single-chip microcomputer makes the erasing apparatus work after screen according to control instruction drive motors driver module, erasing blackboard, limit switch plays position-limiting action.
The manually whole screen erasing blackboard of some flowing mode content: the mode that uses hand to touch the button, single-chip microcomputer detects that button presses, the time of pressing according to button is controlled motor drive module and makes the erasing apparatus work after screen, erasing blackboard, limit switch plays position-limiting action.
The whole screen erasing blackboard of manual mode content: use hand to pin handwheel, overcome the elastic force of spring, make the interlock of spline arrangement of clutch, rotation hand wheel, motion passes to synchronous pulley or leading screw place axle by Bevel Gear Transmission pair, drives the erasing apparatus work after screen, erasing blackboard.
Claims (10)
1. the magnetic writing board of a Zhong Dai handwriting erasing mechanism, it is characterized in that: it comprises casing (18), the front surface of casing (18) is fixed with magnetic display board (20), magnetic display board (20) is installed under magnetic sheet top board (19) and magnetic sheet between liner plate (22), in described casing (18), handwriting erasing mechanism is installed, handwriting erasing mechanism comprises the guide rail (6) being fixed in casing (18), guide rail (6) is along the length direction setting of magnetic display board (20), on guide rail (6), be slidably fitted with slide block (8), before slide block (8), be fixed with magnetic stripe support (9), on magnetic stripe support (9), be fixed with magnetic stripe (10), after the close magnetic display board (20) of magnetic stripe (10), the width of the length of magnetic stripe (10) and magnetic display board (20) is suitable, on described slide block (8), be connected with rectilinear motion transmission mechanism, rectilinear motion transmission mechanism is driven by drive unit.
2. the magnetic writing board with handwriting erasing mechanism according to claim 1, it is characterized in that: described rectilinear motion transmission mechanism comprises the synchronous pulley (3) that is arranged on described guide rail (6) two ends, the upper engagement of synchronous pulley (3) is provided with Timing Belt (2), Timing Belt (2) is walked around and is formed anterior layer and rear layer from synchronous pulley (3), the synchronous pulley (3) of anterior layer is fixed on described slide block (8), the middle part of slide block (8) was manufactured with (8-2) with holes, the synchronous pulley (3) of rear layer passes from (8-2) excessively with holes, on the synchronous pulley (3) of the arbitrary end of guide rail (6), driving shaft (15) is housed, driving shaft (15) is connected with drive unit.
3. the magnetic writing board with handwriting erasing mechanism according to claim 2, it is characterized in that: described drive unit is motor (13), motor (13) is fixed on casing (18) by electric machine support (12), the output shaft of motor (13) is connected with described driving shaft (15) by shaft coupling (11), the control circuit (14) of controlling motor (13) action is housed in casing (18), and the end positions of described guide rail (6) is provided with limit switch (1).
4. the magnetic writing board with handwriting erasing mechanism according to claim 1, it is characterized in that: described rectilinear motion transmission mechanism comprises the support of bearing IV (24) that is arranged on described guide rail (6) two ends, leading screw (25) is installed between support of bearing IV (24), the middle part of described slide block (8) is manufactured with screwed hole (8-3), leading screw (25) is from described screwed hole (8-3) through forming worm drive pair, and one end of leading screw (25) is stretched out with drive unit and is connected.
5. the magnetic writing board with handwriting erasing mechanism according to claim 4, it is characterized in that: described drive unit is motor (13), motor (13) is fixed on the upper and described leading screw (25) of casing (18) on same axis, the output shaft of motor (13) is connected with one end of leading screw (25) by shaft coupling (11), the control circuit (14) of controlling motor (13) action is housed in casing (18), and the end positions of described guide rail (6) is provided with limit switch (1).
6. according to the magnetic writing board with handwriting erasing mechanism described in claim 3 or 5, it is characterized in that: described control circuit (14) comprises single-chip microcomputer, and be connected with single-chip microcomputer respectively for the motor drive module of drive motors motion, for the inching button (21) of start and stop motor, for the remote control signal receiving module of start and stop motor, also comprise that described two limit switches (1) are connected with single-chip microcomputer respectively to the power module of described single-chip microcomputer, motor drive module and remote control signal receiving module power supply.
7. according to the magnetic writing board with handwriting erasing mechanism described in claim 1 or 2 or 4, it is characterized in that: described drive unit is manual driving device (17), manual driving device (17) comprises hand-operated rotating shaft (17-1), on the rotating sidewall that is fixed on described casing (18) of hand-operated rotating shaft (17-1), one end of hand-operated rotating shaft (17-1) is connected with the power intake of rectilinear motion transmission mechanism, and the other end of hand-operated rotating shaft (17-1) passes handwheel (17-8) is installed from casing (18).
8. the magnetic writing board with handwriting erasing mechanism according to claim 3, it is characterized in that: described drive unit also comprises manual driving device (17), manual driving device (17) comprises hand-operated rotating shaft (17-1), on the rotating sidewall that is fixed on described casing (18) of hand-operated rotating shaft (17-1), the lower end of one end of hand-operated rotating shaft (17-1) and described driving shaft (15) is connected with a joggle by bevel gear pair, the other end of hand-operated rotating shaft (17-1) passes handwheel (17-8) is installed from casing (18), between handwheel (17-8) and hand-operated rotating shaft (17-1), arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I (17-1) and flower keyboard II (17-5), flower keyboard I (17-1) is fixed on hand-operated rotating shaft (17-1), flower keyboard II (17-5) is fixed on handwheel (17-8), the external part of hand-operated rotating shaft (17-1) is fixed with the axis of guide (17-9), the end of the axis of guide (17-9) is fixed with catch assembly (17-7), the rigid integral sliding of handwheel (17-8) and flower keyboard II (17-5) composition is arranged on the axis of guide (17-9), between flower keyboard I (17-1) and flower keyboard II (17-5), spring (17-4) is installed.
9. the magnetic writing board with handwriting erasing mechanism according to claim 5, it is characterized in that: described drive unit also comprises manual driving device (17), manual driving device (17) comprises hand-operated rotating shaft (17-1), on the rotating sidewall that is fixed on described casing (18) of hand-operated rotating shaft (17-1), one end of hand-operated rotating shaft (17-1) is connected by shaft coupling with the other end of described leading screw (25), the other end of hand-operated rotating shaft (17-1) passes handwheel (17-8) is installed from casing (18), between handwheel (17-8) and hand-operated rotating shaft (17-1), arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I (17-1) and flower keyboard II (17-5), flower keyboard I (17-1) is fixed on hand-operated rotating shaft (17-1), flower keyboard II (17-5) is fixed on handwheel (17-8), the external part of hand-operated rotating shaft (17-1) is fixed with the axis of guide (17-9), the end of the axis of guide (17-9) is fixed with catch assembly (17-7), the rigid integral sliding of handwheel (17-8) and flower keyboard II (17-5) composition is sleeved on the axis of guide (17-9), between flower keyboard I (17-1) and flower keyboard II (17-5), spring (17-4) is installed.
10. the magnetic writing board with handwriting erasing mechanism according to claim 1, it is characterized in that: described magnetic stripe support (9) is made into bottom for plane, both sides, top are with the integral section of magnetic stripe mounting groove (9-1), described magnetic stripe (10) has two, and two magnetic stripes (10) embed respectively in the magnetic stripe mounting groove (9-1) of both sides.
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CN201420347980.8U Withdrawn - After Issue CN203902055U (en) | 2014-05-10 | 2014-06-25 | Magnetic writing board provided with handwriting erasing mechanism |
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CN107696756A (en) * | 2017-08-31 | 2018-02-16 | 邹先微 | A kind of ellipse drawing blackboard |
CN111483258A (en) * | 2020-06-08 | 2020-08-04 | 山东理工职业学院 | Display device for higher education teaching |
CN113500417A (en) * | 2021-06-29 | 2021-10-15 | 湘潭大学 | Train turning turbine with real-time position error compensation and no wheel drop processing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104070894B (en) * | 2014-05-10 | 2015-12-02 | 张磊 | With the magnetic writing board of handwriting erasing mechanism |
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CN203902055U (en) * | 2014-05-10 | 2014-10-29 | 张磊 | Magnetic writing board provided with handwriting erasing mechanism |
-
2014
- 2014-06-25 CN CN201410290839.3A patent/CN104070894B/en not_active Expired - Fee Related
- 2014-06-25 CN CN201420347980.8U patent/CN203902055U/en not_active Withdrawn - After Issue
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US5386640A (en) * | 1994-06-01 | 1995-02-07 | Chen; Chiang-Ming | Drafting device |
CN2341810Y (en) * | 1998-10-12 | 1999-10-06 | 韩卸龙 | Magnetic writing board |
CN2915541Y (en) * | 2006-04-22 | 2007-06-27 | 太原理工大学 | Automatic teaching device for writing on blackborad |
CN102869519A (en) * | 2010-04-05 | 2013-01-09 | J·A·J·瓦勒乔·曼亚里 | Board describing or showing reality in four dimensions, universal plotter and scientific measurement and learning tool |
CN203902055U (en) * | 2014-05-10 | 2014-10-29 | 张磊 | Magnetic writing board provided with handwriting erasing mechanism |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107696756A (en) * | 2017-08-31 | 2018-02-16 | 邹先微 | A kind of ellipse drawing blackboard |
CN111483258A (en) * | 2020-06-08 | 2020-08-04 | 山东理工职业学院 | Display device for higher education teaching |
CN113500417A (en) * | 2021-06-29 | 2021-10-15 | 湘潭大学 | Train turning turbine with real-time position error compensation and no wheel drop processing |
Also Published As
Publication number | Publication date |
---|---|
CN104070894B (en) | 2015-12-02 |
CN203902055U (en) | 2014-10-29 |
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