CN203902052U - Manual driving device of magnetic writing board - Google Patents
Manual driving device of magnetic writing board Download PDFInfo
- Publication number
- CN203902052U CN203902052U CN201420345579.0U CN201420345579U CN203902052U CN 203902052 U CN203902052 U CN 203902052U CN 201420345579 U CN201420345579 U CN 201420345579U CN 203902052 U CN203902052 U CN 203902052U
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- China
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- rotating shaft
- writing board
- shaft
- magnetic writing
- hand
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Abstract
The utility model discloses a manual driving device of a magnetic writing board, and belongs to the technical field of the magnetic writing board. The manual driving device of the magnetic writing board comprises a manual rotating shaft which is connected with a driving shaft through a clutch device, wherein the manual rotating shaft and the driving shaft are located on the same axis, the manual rotating shaft adopts a step shaft, the lower part of the manual rotating shaft is thin, the upper part of the manual rotating shaft is thick, the thin shaft movably penetrates through the lower wall of a tank, a hand wheel is fixed at an extending end of the thin shaft, a spring is mounted between the step surface of the manual rotating shaft and the tank, a sleeve is mounted outside the thick shaft, the sleeve and the thick shaft are in key joint, and the sleeve is mounted on a bearing support III through a bearing. The manual driving device of the magnetic writing board can manually drive a handwriting erasing mechanism conveniently and is matched with a power-driven mode very well.
Description
Technical field
The utility model relates to a kind of driving mechanism of magnetic writing board erasing apparatus, belongs to magnetic writing board technical field.
Background technology
At present, be mainly blackboard for the clipboard using of demonstrating, impart knowledge to students, in use principle, all continue to use the mode that chalk-writing, blackboard eraser are wiped.What the disadvantage of this using method was dust to Faculty and Students is healthy unfavorable.The common product of dustless class blackboard has common blank, specialty to write a grade blank, flannelette bulletin board, form marking-off plate and environment-friendly writing film etc.Such dust-free blackboard mainly uses various oil fountain pens to substitute traditional chalk.But also exist, water-color paintbrush person's handwriting is dry the shortcoming such as is difficult to wipe.The inventor invents the magnetic writing board of Liao Dai handwriting erasing mechanism, both without chalk also without oil pen, can purify classroom environment, can reduce again use cost.The drive unit of handwriting erasing mechanism can adopt electronic or manual, in the time that reality is used, need to have different optimal way, to meet different user demands.
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 manual driving device, and can realize easily identifies the handwriting wipes the manual actuation of mechanism, and well with the coordinating of electronic mode.
The utility model is achieved by the following technical solution: a kind of magnetic writing board manual driving device, be positioned at magnetic writing board, magnetic writing board has casing, in casing, wipe mechanism, wipe mechanism and comprise a driving shaft arranging vertically downward, described magnetic writing board manual driving device comprises hand-operated rotating shaft, hand-operated rotating shaft is connected with described driving shaft by arrangement of clutch, hand-operated rotating shaft and driving shaft are on same axis, hand-operated rotating shaft is Step Shaft, the Wei Xizhou top, bottom of hand-operated rotating shaft is thick axle, described thin axle passes from the lower wall activity of described casing, the external part of thin axle is fixed with handwheel, the outer slip of described thick axle is equipped with sleeve, between sleeve and thick axle, key is connected, sleeve is arranged in support of bearing III by bearing.
Described arrangement of clutch is included in the guide pillar of the lower end making of driving shaft, and the radial direction of guide pillar is provided with latch, and the upper end of described hand-operated rotating shaft is manufactured with the guide hole matching with guide pillar, is manufactured with the slot inserting for latch on the sidewall of guide hole.
Described arrangement of clutch is arranged on described driving shaft lower end and the spline joint device of hand-operated rotating shaft upper end.
Between described sleeve and thick axle, adopt gib head key to be connected, on the face of cylinder of axle slightly, be manufactured with the axial slide with gib head key adaptation.
Described handwheel is fixed on the lower end of described hand-operated rotating shaft by screw gasket assembly.
Between the step surface of hand-operated rotating shaft and described casing, spring is installed.
The beneficial effects of the utility model are:
When the utility model erasing apparatus does not use, or when motor action, due to the Action of Gravity Field of hand-operated rotating shaft self, arrangement of clutch natural separation, in normally open, driving shaft separates with hand-operated rotating shaft, electric machine rotation and handwheel does not turn, handwheel is unaffected.Need to use manual mode time, upwards promote handwheel, arrangement of clutch is connected, driving shaft is combined with hand-operated rotating shaft, and rotation handwheel can drive the drive shaft turns of transmission device, realizes the left and right erase feature of magnetic stripe, can stop at any time.Manual mode, without supply of electric power, can be promoted the use of in power shortages area; And can be used in conjunction with motor, simple in structure, easy and simple to handle, be convenient to promote.
Brief description of the drawings
According to drawings and embodiments the utility model is further illustrated below.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A place partial enlarged drawing of Fig. 1.
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, 9, magnetic stripe support, 10, magnetic stripe, 11, shaft coupling, 12, electric machine support, 13, motor, 14, control circuit, 15, driving shaft, 15-1, latch, 15-2, guide pillar, 16, support of bearing II, 17, manual driving device, 17-1, slot, 17-2, guide hole, 17-3, sleeve, 17-4, spring, 17-5, screw gasket assembly, 17-6, handwheel, 17-7, hand-operated rotating shaft, 17-7.1, thin axle, 17-7.2, thick axle, 17-8, gib head key, 18, casing, 18-1, through hole, 19, support of bearing III.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is further illustrated.
As accompanying drawing Fig. 1, shown in Fig. 2, a kind of magnetic writing board manual driving device, be positioned at magnetic writing board, magnetic writing board has casing 18, in casing 18, wipe mechanism, wipe mechanism and comprise a driving shaft 15 arranging vertically downward, it is characterized in that: described magnetic writing board manual driving device comprises hand-operated rotating shaft 17-7, hand-operated rotating shaft 17-7 is connected with described driving shaft 15 by arrangement of clutch, hand-operated rotating shaft 17-7 and driving shaft 15 are on same axis, hand-operated rotating shaft 17-7 is Step Shaft, preventing that rotating shaft from passing drops, the bottom of hand-operated rotating shaft 17-7 is that thin axle 17-7.1 top is thick axle 17-7.2, described thin axle 17-7.1 passes from the lower wall activity of described casing 18, the external part of thin axle 17-7.1 is fixed with handwheel 17-6, between the step surface of hand-operated rotating shaft 17-7 and described casing 18, spring 17-4 is installed, spring 17-4 mainly plays cushioning effect, and prevent collision and rotation wearing and tearing between step surface and casing.The outer slip of described thick axle 17-7.2 is equipped with sleeve 17-3, sleeve 17-3 with slightly between axle 17-7.2 key be connected, sleeve 17-3 is arranged in support of bearing III 19 by bearing.
As shown in Figure 2, described arrangement of clutch is included in the guide pillar 15-2 of the lower end making of driving shaft 15, the radial direction of guide pillar 15-2 is provided with latch 15-1, the upper end of described hand-operated rotating shaft 17-7 is manufactured with the guide hole 17-2 matching with guide pillar 15-2, is manufactured with the slot 17-1 inserting for latch 15-1 on the sidewall of guide hole 17-2.Latch 15-1 inserts after slot 17-1, and hand-operated rotating shaft can drive driving shaft rotation.
Described arrangement of clutch is arranged on described driving shaft 15 lower ends and the spline joint device of hand-operated rotating shaft 17-7 upper end.Such as can internal spline being set in driving shaft 15 lower ends, hand-operated rotating shaft 17-7 upper end arranges external splines, and inside and outside spline engagement can realize hand-operated rotating shaft can drive driving shaft rotation.
Between described sleeve 17-3 and thick axle 17-7.2, adopt gib head key 17-8 to be connected, on the face of cylinder of axle 17-7.2 slightly, be manufactured with the axial slide with gib head key 17-8 adaptation.
Described handwheel 17-6 is fixed on the lower end of described hand-operated rotating shaft 17-7 by screw gasket assembly 17-5.
Operation principle of the present utility model: a kind of magnetic writing board with handwriting erasing mechanism as shown in accompanying drawing Fig. 1, it comprises casing 18, the front surface of casing 18 is fixed with magnetic display board, 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 is equipped with in the upper and lower both sides, rear portion of slide block 8, the wheel track sliding connection of the upper and lower sides of roller and guide rail 6.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.As shown in Figure 1, 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 holes, the synchronous pulley 3 of rear layer is from holes passing excessively, on the synchronous pulley 3 of guide rail 6 arbitrary ends, driving shaft 15 is housed, driving shaft 15 is connected with drive unit.Described drive unit can comprise 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 the single-chip microcomputer sender of control circuit 14, is controlled start and stop or the rotating of motor.
When the utility model erasing apparatus does not use, or when motor action, due to the Action of Gravity Field of hand-operated rotating shaft self, arrangement of clutch natural separation, in normally open, driving shaft separates with hand-operated rotating shaft, electric machine rotation and handwheel does not turn, handwheel is unaffected.Need to use manual mode time, upwards promote handwheel, arrangement of clutch is connected, driving shaft is combined with hand-operated rotating shaft, and rotation handwheel can drive the drive shaft turns of transmission device, realizes the left and right erase feature of magnetic stripe, can stop at any time.Manual mode, without supply of electric power, can be promoted the use of in power shortages area; And can be used in conjunction with motor, simple in structure, easy and simple to handle, be convenient to promote.
Claims (6)
1. a magnetic writing board manual driving device, be positioned at magnetic writing board, magnetic writing board has casing (18), casing is wiped mechanism in (18), wipe mechanism and comprise a driving shaft (15) arranging vertically downward, it is characterized in that: described magnetic writing board manual driving device comprises hand-operated rotating shaft (17-7), hand-operated rotating shaft (17-7) is connected with described driving shaft (15) by arrangement of clutch, hand-operated rotating shaft (17-7) and driving shaft (15) are on same axis, hand-operated rotating shaft (17-7) is Step Shaft, the bottom of hand-operated rotating shaft (17-7) is that thin axle (17-7.1) top is thick axle (17-7.2), described thin axle (17-7.1) passes from the lower wall activity of described casing (18), the external part of thin axle (17-7.1) is fixed with handwheel (17-6), the outer slip of described thick axle (17-7.2) is equipped with sleeve (17-3), between sleeve (17-3) and thick axle (17-7.2), key is connected, sleeve (17-3) is arranged in support of bearing III (19) by bearing.
2. magnetic writing board manual driving device according to claim 1, it is characterized in that: described arrangement of clutch is included in the guide pillar (15-2) of the lower end making of driving shaft (15), the radial direction of guide pillar (15-2) is provided with latch (15-1), the upper end of described hand-operated rotating shaft (17-7) is manufactured with the guide hole (17-2) matching with guide pillar (15-2), is manufactured with the slot (17-1) inserting for latch (15-1) on the sidewall of guide hole (17-2).
3. magnetic writing board manual driving device according to claim 1, is characterized in that: described arrangement of clutch is arranged on described driving shaft (15) lower end and the spline joint device of hand-operated rotating shaft (17-7) upper end.
4. magnetic writing board manual driving device according to claim 1, it is characterized in that: between described sleeve (17-3) and thick axle (17-7.2), adopt gib head key (17-8) to be connected, on the face of cylinder of thick axle (17-7.2), be manufactured with the axial slide with gib head key (17-8) adaptation.
5. magnetic writing board manual driving device according to claim 1, is characterized in that: described handwheel (17-6) is fixed on the lower end of described hand-operated rotating shaft (17-7) by screw gasket assembly (17-5).
6. magnetic writing board manual driving device according to claim 1, is characterized in that: between the step surface of described hand-operated rotating shaft (17-7) and described casing (18), spring (17-4) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345579.0U CN203902052U (en) | 2014-06-25 | 2014-06-25 | Manual driving device of magnetic writing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345579.0U CN203902052U (en) | 2014-06-25 | 2014-06-25 | Manual driving device of magnetic writing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203902052U true CN203902052U (en) | 2014-10-29 |
Family
ID=51776344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345579.0U Expired - Fee Related CN203902052U (en) | 2014-06-25 | 2014-06-25 | Manual driving device of magnetic writing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203902052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215600A (en) * | 2018-04-15 | 2018-06-29 | 李昶进 | A kind of device of quick erasing blackboard |
-
2014
- 2014-06-25 CN CN201420345579.0U patent/CN203902052U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108215600A (en) * | 2018-04-15 | 2018-06-29 | 李昶进 | A kind of device of quick erasing blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150625 |
|
| EXPY | Termination of patent right or utility model |