CN203902055U - Magnetic writing board provided with handwriting erasing mechanism - Google Patents
Magnetic writing board provided with handwriting erasing mechanism Download PDFInfo
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- CN203902055U CN203902055U CN201420347980.8U CN201420347980U CN203902055U CN 203902055 U CN203902055 U CN 203902055U CN 201420347980 U CN201420347980 U CN 201420347980U CN 203902055 U CN203902055 U CN 203902055U
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Abstract
The utility model discloses a magnetic writing board provided with a handwriting erasing mechanism, and belongs to the technical field of teaching appliances. The magnetic writing board comprises a tank, wherein a magnetic display board is fixed on the front surface of the tank, the handwriting erasing mechanism is mounted in the tank and comprises guide rails fixed in the tank, the guide rails are arranged in the length direction of the magnetic display board, a sliding block is glidingly mounted on the guide rails, a magnetic stripe support is fixed in the front of the sliding block, magnetic stripes are fixed on the magnetic stripe support and close to the back of the magnetic display board, the length of each magnetic stripe is equal to the width of the magnetic display board, and a linear motion transmission mechanism is connected onto the sliding block and driven by a driving device. The magnetic writing board provided with the handwriting erasing mechanism adopts the magnetic stripes and the magnetic erasers, is free from dust pollution and is environment-friendly and healthy; and a mechanical and electronic integration technology is applied comprehensively, so that handwriting on the whole board can be rapidly erased, the remote-control and manual point control mode saves the physical strength, the manual mode does not require electric power supply, and the magnetic writing board can be popularized and used in the area short of electric power.
Description
Technical field
The utility model relates to a kind of magnetic writing board for demonstrating, and belongs to teaching aid technical field.
Background technology
At present, for the clipboard using of demonstrating, impart knowledge to students, be mainly blackboard, 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.Next uses 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.In order to adapt to specialty, write the requirement with safety and environmental protection, produced 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 is mainly used 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 at classroom teaching, promotes the use of 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, in conjunction with computer and projector, uses, and 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.According to use principle, divide, 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, yet in use exist and 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 utility model provides a kind of magnetic writing board with handwriting erasing mechanism, both without chalk also without oil pen, can purify classroom environment, can reduce use cost again.
The utility model is achieved by the following technical solution: 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 secondary through forming worm drive from described screwed hole, 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 the motor drive module for drive motors motion being connected with single-chip microcomputer respectively, 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, hand-operated rotating shaft is rotating to be fixed on the sidewall of described casing, 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, hand-operated rotating shaft is rotating to be fixed on the sidewall of described casing, 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 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, hand-operated rotating shaft is rotating to be fixed on the sidewall of described casing, 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 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, two magnetic stripes embed respectively in the magnetic stripe mounting groove of both sides.
The beneficial effects of the utility model are:
1, the utility model 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 puts prosecutor formula and saves muscle power, and 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.
Accompanying drawing explanation
According to drawings and embodiments the utility model is further illustrated below.
Fig. 1 is the utility model structural representation;
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 the utility model control circuit schematic diagram;
Fig. 7 is another example structure schematic diagram of the utility model;
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.
The specific embodiment
Below in conjunction with embodiment, the utility model is further illustrated.
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, the control circuit 14 of controlling motor 13 actions is housed in casing 18, and the end positions of described guide rail 6 is provided with limit switch 1.
After starter motor, synchronous pulley 3 rotations, drive Timing Belt 2 actions, and the Timing Belt 2 band movable sliders 8 on upper strata are done left and right rectilinear motion, thereby realize 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, 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 secondary through forming worm drive from described screwed hole 8-3, 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, the control circuit 14 of controlling motor 13 actions is housed in casing 18, and the end positions of described guide rail 6 is provided with limit switch 1.
After starter motor, leading screw 25 rotations, do left and right rectilinear motion by screwfeed band movable slider 8, thereby realize 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, 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 the motor drive module for drive motors motion being connected with single-chip microcomputer respectively, 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, hand-operated rotating shaft 17-1 is rotating to be fixed on the sidewall of described casing 18, 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 that handwheel 17-8 and flower keyboard II 17-5 form 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 is not used, or during motor action, between flower keyboard I 17-1 and flower keyboard II 17-5, by spring, backed down, in normally open, handwheel separates with hand-operated rotating shaft 17-1, electric machine rotation and handwheel does not turn, and handwheel is unaffected.In the time of need to using manual mode, 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, hand-operated rotating shaft 17-1 is rotating to be fixed on the sidewall of described casing 18, one end of hand-operated rotating shaft 17-1 is connected by shaft coupling with the other end of described leading screw 25, position with reference to 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 that handwheel 17-8 and flower keyboard II 17-5 form 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 is not used, or during motor action, between flower keyboard I 17-1 and flower keyboard II 17-5, by spring, backed down, in normally open, handwheel separates with hand-operated rotating shaft 17-1, electric machine rotation and handwheel does not turn, and handwheel is unaffected.In the time of need to using manual mode, 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, the top integral section with 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.
Manually put the whole screen erasing blackboard of flowing mode content: the mode of using hand to touch the button, single-chip microcomputer detects button and presses, and 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)
- The magnetic writing board of 1.Yi Zhongdai 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), described casing is provided with handwriting erasing mechanism in (18), 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, described slide block is connected with rectilinear motion transmission mechanism on (8), 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 of anterior layer (3) 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 secondary through forming worm drive from described screwed hole (8-3), 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 the motor drive module for drive motors motion being connected with single-chip microcomputer respectively, 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), hand-operated rotating shaft (17-1) is rotating to be fixed on the sidewall of described casing (18), 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), hand-operated rotating shaft (17-1) is rotating to be fixed on the sidewall of described casing (18), 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 that handwheel (17-8) and flower keyboard II (17-5) form 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), hand-operated rotating shaft (17-1) is rotating to be fixed on the sidewall of described casing (18), 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 that handwheel (17-8) and flower keyboard II (17-5) form 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, the top integral section with 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420347980.8U CN203902055U (en) | 2014-05-10 | 2014-06-25 | Magnetic writing board provided with handwriting erasing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239423 | 2014-05-10 | ||
| CN201420239423.4 | 2014-05-10 | ||
| CN201420347980.8U CN203902055U (en) | 2014-05-10 | 2014-06-25 | Magnetic writing board provided with handwriting erasing mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN203902055U true CN203902055U (en) | 2014-10-29 |
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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 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410290839.3A Expired - Fee Related CN104070894B (en) | 2014-05-10 | 2014-06-25 | With the magnetic writing board of handwriting erasing mechanism |
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| CN (2) | CN104070894B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070894A (en) * | 2014-05-10 | 2014-10-01 | 张磊 | Magnetic writing board 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 |
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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 |
| PE20110872A1 (en) * | 2010-04-05 | 2011-12-30 | Manyari Jorge Alfonso Jesus Vallejo | BLACKBOARD THAT DESCRIBES OR REPRESENTS REALITY IN ITS FOUR DIMENSIONS, UNIVERSAL GRAPHER AND INSTRUMENT FOR LEARNING AND SCIENTIFIC MEASUREMENT |
| CN104070894B (en) * | 2014-05-10 | 2015-12-02 | 张磊 | With the magnetic writing board of 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
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070894A (en) * | 2014-05-10 | 2014-10-01 | 张磊 | Magnetic writing board with handwriting erasing mechanism |
| CN104070894B (en) * | 2014-05-10 | 2015-12-02 | 张磊 | With the magnetic writing board of handwriting erasing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104070894B (en) | 2015-12-02 |
| CN104070894A (en) | 2014-10-01 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20151202 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |