CN104070894B - With the magnetic writing board of handwriting erasing mechanism - Google Patents
With the magnetic writing board of handwriting erasing mechanism Download PDFInfo
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- CN104070894B CN104070894B CN201410290839.3A CN201410290839A CN104070894B CN 104070894 B CN104070894 B CN 104070894B CN 201410290839 A CN201410290839 A CN 201410290839A CN 104070894 B CN104070894 B CN 104070894B
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Abstract
The invention discloses a kind of magnetic writing board with handwriting erasing mechanism, belong to teaching aid technical field.The present invention includes casing, the front surface of casing is fixed with magnetic display board, handwriting erasing mechanism is installed in casing, handwriting erasing mechanism comprises the guide rail be fixed in casing, guide rail is arranged along the length direction of magnetic display board, slide on rails is provided with slide block, magnetic stripe support is fixed with before slide block, magnetic stripe support is fixed with magnetic stripe, magnetic stripe is after magnetic display board, the length of magnetic stripe is suitable with the width of magnetic display board, and described slide block is connected with straight motion transmission device, and straight motion transmission device is driven by drive unit.The present invention wipes and uses magnetic stripe and magnetic blackboard eraser, no dust pollution, environment protection health; Integrated use electromechanical integration technology, can realize whole screen fast erase, and muscle power is saved in remote control, manually some prosecutor formula, and manual mode, without the need to supply of electric power, can be promoted the use of in power shortages area.
Description
Technical field
The present invention relates to a kind of magnetic writing board for demonstrating, belonging to teaching aid technical field.
Background technology
At present, for demonstrating, imparting knowledge to students the clipboard mainly blackboard used, from making material and use principle, be broadly divided into three classes:
One is normal blackboard.From making material, current the most widely used be green plate.It is arranged in pairs or groups formed by surface panel, sandwich material, backboard, scribbles layer, in blackish green, therefore gain the name on surface.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, existing existing production standard of being correlated with.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 use principle is all continued to use the mode of chalk-writing, blackboard eraser erasing.The disadvantage of this using method is healthy unfavorable to Faculty and Students of dust.
Two is dustless class blackboards.The requirement with safety and environmental protection is write in order to adapt to specialty, create special writing panel material gradually, wiping can be finished writing well and there is no dust pollution again, common market product has common blank, specialty writes 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 pen to substitute traditional chalk.Though the comparatively chalk environmental protection of this oil fountain pen, also have that water-color paintbrush person's handwriting is dry is difficult to the shortcomings such as erasing, not yet promote the use of at classroom teaching at present, be mainly used in the occasions such as office, training, mini-session.
Three is electronic whiteboards.Electronic whiteboard is the new high-tech product summarizing the multiple high-tech means research and development such as sophisticated electronic technology, software engineering, uses, can realize non-support cable and teaching in conjunction with computer and projector.The most basic write except demand except meeting, up-to-date electronic whiteboard also has interactive function, sensual pleasure can 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, the notice of student can be attracted, teaching efficiency is good, it is the developing direction of blackboard from now on, but in use existence needs 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 classroom environment be purified, can use cost be reduced again.
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 to be 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 be fixed in casing, guide rail is arranged along the length direction of magnetic display board, slide on rails is provided with slide block, magnetic stripe support is fixed with before slide block, magnetic stripe support is fixed with magnetic stripe, magnetic stripe is after magnetic display board, the length of magnetic stripe is suitable with the width of magnetic display board, described slide block is connected with straight motion transmission device, straight motion transmission device is driven by drive unit.
Described straight motion transmission device comprises the synchronous pulley being arranged on described guide rail two ends, on synchronous pulley, engagement is provided with Timing Belt, Timing Belt walks around formation front layer and back layer from synchronous pulley, the synchronous pulley of front layer is fixed on described slide block, the middle part of slide block was manufactured with holes, the synchronous pulley of rear layer passes from excessively with holes, and the synchronous pulley of guide rail either end is equipped with driving shaft, 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 casing is built with the control circuit controlling motor action, and the end positions of described guide rail is provided with limit switch.
Described straight motion transmission device comprises the support of bearing IV being arranged on described guide rail two ends, between the support of bearing IV, leading screw is installed, the middle part of described slide block is manufactured with screwed hole, leading screw is secondary through forming worm drive from described screwed hole, and one end of leading screw is stretched out and is connected with drive unit.
Described drive unit is motor, motor is fixed on leading screw on casing with described on the same axis, the output shaft of motor is connected with one end of leading screw by shaft coupling, and casing is built with the control circuit controlling motor action, and the end positions of described guide rail is provided with limit switch.
Described control circuit comprises single-chip microcomputer, and the motor drive module moved for drive motors be connected with single-chip microcomputer respectively, for the inching button of start and stop motor, the remote control signal receiving module for start and stop motor, also comprise the power module of powering to described single-chip microcomputer, motor drive module and remote control signal receiving module, the limit switch described in two is connected with single-chip microcomputer respectively.
Described drive unit is manual driving device, manual driving device comprises hand-operated rotating shaft, on the rotating sidewall being fixed on described casing of hand-operated rotating shaft, one end of hand-operated rotating shaft is connected with the power intake of straight motion transmission device, the other end of hand-operated rotating shaft from casing through being provided with handwheel.
Described drive unit also comprises manual driving device, manual driving device comprises hand-operated rotating shaft, on the rotating sidewall being fixed on described casing of hand-operated rotating shaft, one end of hand-operated rotating shaft and the lower end of described driving shaft are connected with a joggle by bevel gear pair, the other end of hand-operated rotating shaft from casing through being provided with handwheel, 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 winding support of the axis of guide has catch assembly, the rigid integral sliding that handwheel and flower keyboard II form 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 being 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 from casing through being provided with handwheel, 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 winding support of the axis of guide has catch assembly, the rigid integral sliding that handwheel and flower keyboard II form is sleeved on the axis of guide, between flower keyboard I and flower keyboard II, spring is installed.
Described magnetic stripe rack making become bottom be plane, both sides, top with the integral section of magnetic stripe mounting groove, described magnetic stripe has two, and two magnetic stripes embed in the magnetic stripe mounting groove of both sides respectively.
The invention has the beneficial effects as follows:
1, the present invention is magnetic writing board, writes use magnetic pen, and erasing uses magnetic stripe and magnetic blackboard eraser, no dust pollution, environment protection health;
2, the magnetic drawing that resolution ratio is higher can be adopted;
3, integrated use electromechanical integration technology, can realize whole screen fast erase, and muscle power is saved in remote control, manually some prosecutor formula, and manual mode, without the need to supply of electric power, can be promoted the use of in power shortages area;
4, once invest, without the need to follow-up purchase chalk, oil fountain pen, economize on the use of funds.
Accompanying drawing explanation
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, the 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, the 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, the support of bearing III, 24, the 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 to be 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 be fixed in casing 18, guide rail 6 is arranged along the length direction of magnetic display board 20, guide rail 6 is 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 supporting and reduce resistance to sliding.Magnetic stripe support 9 is fixed with before slide block 8, magnetic stripe support 9 is fixed with magnetic stripe 10, described magnetic stripe 10 has two, two magnetic stripes 10 are separately fixed at both sides before magnetic stripe support 9, two magnetic stripes can strengthen erasing effect, and magnetic stripe 10 is after magnetic display board 20, and the length of magnetic stripe 10 is suitable with the width of magnetic display board 20, described slide block 8 is connected with straight motion transmission device, and straight motion transmission device is driven by drive unit.
The first embodiment: as Fig. 1, shown in Fig. 2, described straight motion transmission device comprises the synchronous pulley 3 being arranged on described guide rail 6 two ends, the wheel shaft of the synchronous pulley 3 at two ends is arranged in casing respectively by the support of bearing I 5 and the support of bearing II 16, on synchronous pulley 3, engagement is provided with Timing Belt 2, Timing Belt 2 walks around formation front layer and back layer from synchronous pulley 3, the synchronous pulley 3 of front 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, the synchronous pulley 3 of guide rail 6 either end is equipped with driving shaft 15, 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, casing 18 is built with the control circuit 14 controlling motor 13 action, and the end positions of described guide rail 6 is provided with limit switch 1.
After starter motor, synchronous pulley 3 rotates, and drive Timing Belt 2 action, the Timing Belt 2 on upper strata is with movable slider 8 to do left and right rectilinear motion, thus realizes the left and right erase feature of magnetic stripe 10.When magnetic stripe 10 moves to limit switch 1 position at guide rail 6 two ends, limit switch 1, to single-chip microcomputer sender, controls start and stop or the rotating of motor.
The second embodiment: as shown in Figure 7, Figure 8, described straight motion transmission device comprises the support of bearing IV 24 being arranged on described guide rail 6 two ends, leading screw 25 is installed between the support of bearing IV 24, the middle part of described slide block 8 is manufactured with screwed hole 8-3, leading screw 25 is secondary through forming worm drive from described screwed hole 8-3, and one end of leading screw 25 is stretched out and is connected with drive unit.
Further, described drive unit is motor 13, motor 13 is fixed on leading screw 25 on casing 18 with described on the same axis, the output shaft of motor 13 is connected with one end of leading screw 25 by shaft coupling 11, casing 18 is built with the control circuit 14 controlling motor 13 action, and 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, thus realizes the left and right erase feature of magnetic stripe 10.When magnetic stripe 10 moves to limit switch 1 position at guide rail 6 two ends, limit switch 1, to single-chip microcomputer sender, controls 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 the motor drive module moved for drive motors be connected with single-chip microcomputer respectively, for the inching button 21 of start and stop motor, the remote control signal receiving module for start and stop motor, also comprise the power module of powering to described single-chip microcomputer, motor drive module and remote control signal receiving module, two described limit switches 1 are connected with single-chip microcomputer respectively.
Drive unit in above-mentioned several embodiment also can adopt separately manual driving device 17, as shown in Figure 5, the sidewall of described casing 18 is 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 straight motion transmission device, the other end of hand-operated rotating shaft 17-1 from through hole 18-1 through being provided with handwheel 17-8.Hand-operated rotating shaft 17-1 carries on a shoulder pole on the support of bearing III 23 in casing by bearing, also can install bearing in through hole 18-1.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 the first embodiment above-mentioned, 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 being fixed on described casing 18 of hand-operated rotating shaft 17-1, one end of hand-operated rotating shaft 17-1 and the lower end of described driving shaft 15 are connected with a joggle by bevel gear pair, namely bevel gear II 17-10 on hand-operated rotating shaft 17-1 and bevel gear I 15-1 being arranged on driving shaft 15 lower end is arranged on, the other end of hand-operated rotating shaft 17-1 from casing 18 through being provided with handwheel 17-8, between handwheel 17-8 and hand-operated rotating shaft 17-1, arrangement of clutch is housed, arrangement of clutch is to coordinate motor to use.Arrangement of clutch comprises intermeshing flower keyboard I 17-3 and flower keyboard II 17-5, flower keyboard I 17-3 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 winding support of axis of guide 17-9 has catch assembly 17-7, the rigid integral sliding that handwheel 17-8 and flower keyboard II 17-5 forms is arranged on axis of guide 17-9, is provided with spring 17-4 between flower keyboard I 17-3 and flower keyboard II 17-5.When erasing apparatus does not use, or during motor action, backed down by spring between flower keyboard I 17-3 and flower keyboard II 17-5, be in normally open, handwheel separates with hand-operated rotating shaft 17-1, electric machine rotation and handwheel does not turn, and handwheel is unaffected.When needing to use manual mode, press handwheel, flower keyboard I 17-3 and flower keyboard II 17-5 is meshed, handwheel is combined with hand-operated rotating shaft 17-1, rotating handwheel can drive the driving shaft 15 of transmission device to rotate, and realizes 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 being 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 the two ends of leading screw respectively, the other end of hand-operated rotating shaft 17-1 from casing 18 through being provided with handwheel 17-8, between handwheel 17-8 and hand-operated rotating shaft 17-1, arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I 17-3 and flower keyboard II 17-5, flower keyboard I 17-3 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 winding support of axis of guide 17-9 has catch assembly 17-7, the rigid integral sliding that handwheel 17-8 and flower keyboard II 17-5 forms is sleeved on axis of guide 17-9, between flower keyboard I 17-3 and flower keyboard II 17-5, spring 17-4 is installed.When erasing apparatus does not use, or during motor action, backed down by spring between flower keyboard I 17-3 and flower keyboard II 17-5, be in normally open, handwheel separates with hand-operated rotating shaft 17-1, electric machine rotation and handwheel does not turn, and handwheel is unaffected.When needing to use manual mode, press handwheel, flower keyboard I 17-3 and flower keyboard II 17-5 is meshed, and handwheel is combined with hand-operated rotating shaft 17-1, rotates handwheel and leading screw 25 can be driven to rotate, realize 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 that bottom is plane, both sides, top with the integral section of magnetic stripe mounting groove 9-1, described magnetic stripe 10 has two, and two magnetic stripes 10 embed in the magnetic stripe mounting groove 9-1 of both sides respectively.This mode is easy for installation, portable construction.
Remote control mode whole screen erasing blackboard 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.
Manual some flowing mode whole screen erasing blackboard content: use the mode that hand touches the button, microprocessor detect is pressed to button, and make the erasing apparatus work after screen according to the time controling motor drive module that button is pressed, erasing blackboard, limit switch plays position-limiting action.
Manual mode whole screen erasing blackboard content: use hand to pin handwheel, overcome the elastic force of spring, spline arrangement of clutch is engaged, 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) to be 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) be fixed in casing (18), guide rail (6) is arranged along the length direction of magnetic display board (20), guide rail (6) is slidably fitted with slide block (8), magnetic stripe support (9) is fixed with before slide block (8), magnetic stripe support (9) is fixed with magnetic stripe (10), magnetic stripe (10) is after magnetic display board (20), the length of magnetic stripe (10) is suitable with the width of magnetic display board (20), described slide block (8) is connected with straight motion transmission device, straight motion transmission device is driven by drive unit.
2. the magnetic writing board of band handwriting erasing mechanism according to claim 1, it is characterized in that: described straight motion transmission device comprises the synchronous pulley (3) being arranged on described guide rail (6) two ends, the upper engagement of synchronous pulley (3) is provided with Timing Belt (2), Timing Belt (2) walks around formation front layer and back layer from synchronous pulley (3), the synchronous pulley (3) of front 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, the synchronous pulley (3) of guide rail (6) either end is equipped with driving shaft (15), driving shaft (15) is connected with drive unit.
3. the magnetic writing board of band 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), casing (18) is built with the control circuit (14) controlling motor (13) action, and the end positions of described guide rail (6) is provided with limit switch (1).
4. the magnetic writing board of band handwriting erasing mechanism according to claim 1, it is characterized in that: described straight motion transmission device comprises the support of bearing IV (24) being arranged on described guide rail (6) two ends, leading screw (25) is installed between the support of bearing IV (24), the middle part of described slide block (8) is manufactured with screwed hole (8-3), leading screw (25) is secondary through forming worm drive from described screwed hole (8-3), and one end of leading screw (25) is stretched out and is connected with drive unit.
5. the magnetic writing board of band 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 the same axis, the output shaft of motor (13) is connected with one end of leading screw (25) by shaft coupling (11), casing (18) is built with the control circuit (14) controlling motor (13) action, and the end positions of described guide rail (6) is provided with limit switch (1).
6. the magnetic writing board of the band handwriting erasing mechanism according to claim 3 or 5, it is characterized in that: described control circuit (14) comprises single-chip microcomputer, and the motor drive module moved for drive motors be connected with single-chip microcomputer respectively, for the inching button (21) of start and stop motor, the remote control signal receiving module for start and stop motor, also comprise the power module of powering to described single-chip microcomputer, motor drive module and remote control signal receiving module, the limit switch (1) described in two is connected with single-chip microcomputer respectively.
7. the magnetic writing board of the band handwriting erasing mechanism according to 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 being 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 straight motion transmission device, the other end of hand-operated rotating shaft (17-1) from casing (18) through being provided with handwheel (17-8).
8. the magnetic writing board of band 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 being fixed on described casing (18) of hand-operated rotating shaft (17-1), one end of hand-operated rotating shaft (17-1) and the lower end of described driving shaft (15) are connected with a joggle by bevel gear pair, the other end of hand-operated rotating shaft (17-1) from casing (18) through being provided with handwheel (17-8), between handwheel (17-8) and hand-operated rotating shaft (17-1), arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I (17-3) and flower keyboard II (17-5), flower keyboard I (17-3) 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 winding support of the axis of guide (17-9) has catch assembly (17-7), the rigid integral sliding that handwheel (17-8) and flower keyboard II (17-5) form is arranged on the axis of guide (17-9), spring (17-4) is installed between flower keyboard I (17-3) and flower keyboard II (17-5).
9. the magnetic writing board of band 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 being 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) from casing (18) through being provided with handwheel (17-8), between handwheel (17-8) and hand-operated rotating shaft (17-1), arrangement of clutch is housed, arrangement of clutch comprises intermeshing flower keyboard I (17-3) and flower keyboard II (17-5), flower keyboard I (17-3) 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 winding support of the axis of guide (17-9) has catch assembly (17-7), the rigid integral sliding that handwheel (17-8) and flower keyboard II (17-5) form is sleeved on the axis of guide (17-9), spring (17-4) is installed between flower keyboard I (17-3) and flower keyboard II (17-5).
10. the magnetic writing board of band handwriting erasing mechanism according to claim 1, it is characterized in that: described magnetic stripe support (9) is made into that bottom is 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 in the magnetic stripe mounting groove (9-1) of both sides respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410290839.3A CN104070894B (en) | 2014-05-10 | 2014-06-25 | With the magnetic writing board of handwriting erasing mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239423.4 | 2014-05-10 | ||
| CN201420239423 | 2014-05-10 | ||
| CN201410290839.3A CN104070894B (en) | 2014-05-10 | 2014-06-25 | With the magnetic writing board of handwriting erasing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104070894A CN104070894A (en) | 2014-10-01 |
| CN104070894B true CN104070894B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410290839.3A Expired - Fee Related CN104070894B (en) | 2014-05-10 | 2014-06-25 | With the magnetic writing board of handwriting erasing mechanism |
| CN201420347980.8U Withdrawn - After Issue CN203902055U (en) | 2014-05-10 | 2014-06-25 | Magnetic writing board provided with handwriting erasing mechanism |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| CN (2) | CN104070894B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070894B (en) * | 2014-05-10 | 2015-12-02 | 张磊 | With the magnetic writing board of handwriting erasing mechanism |
| 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 |
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| 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 |
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- 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203902055U (en) | 2014-10-29 |
| CN104070894A (en) | 2014-10-01 |
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Granted publication date: 20151202 Termination date: 20160625 |