CN203957626U - A kind of circulation automatic erasing blackboard that utilizes Timing Belt to drive planetary belt - Google Patents
A kind of circulation automatic erasing blackboard that utilizes Timing Belt to drive planetary belt Download PDFInfo
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- CN203957626U CN203957626U CN201420318169.7U CN201420318169U CN203957626U CN 203957626 U CN203957626 U CN 203957626U CN 201420318169 U CN201420318169 U CN 201420318169U CN 203957626 U CN203957626 U CN 203957626U
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- blackboard
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- sided
- motion
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Abstract
A kind of self-locking circulating, from wiping device, is specifically related to a kind of Timing Belt that utilizes and drives planetary belt to realize the blackboard device of two blackboard surface self-locking circulating translational motions subsidiary auto-erasing writing on the blackboard function.What in this utility model, blackboard adopted is that Timing Belt drives, shake hand-operated wheel drives transmission system transferring power to make itself and the fixing internal tooth one side Timing Belt equidistant with it produce speed difference to double-sided synchronous belt, thereby the planet synchronous pulley being connected with blackboard surface framework can be turned round in the time jointly engaging with the two in the two gap.Like this along with the motion of double-sided synchronous belt, planet synchronous pulley can be with blackboard along the translational motion of predetermined gap track, and this motion has unidirectional delivery and cannot promote easily blackboard surface and make double-sided belt running, and this characteristic ensures that blackboard surface motion realizes self-locking.And two Double-faced erasers in the middle of blackboard surfaces can be promoted do intermittent rotary motion by blackboard surface framework, blackboard writing on the blackboard is below wiped when parallel motion in opposite directions at two blackboard surfaces.This utility model has stabilized structure, simple to operate, easy to use, environmental protection, the plurality of advantages such as efficient energy-saving.
Description
Technical field
The utility model relates to a kind of classroom circulation blackboard erasing device, is specifically related to a kind of Timing Belt that utilizes and drives planetary belt to realize two blackboard surface self-locking performance cycle spinnings and move and attach the blackboard device of auto-erasing writing on the blackboard function.
Background technology
Blackboard is the requisite things in place such as teaching, and the traditional blackboard free degree that current most classroom adopt is less, fixes and uses or can only move up and down use; In the time that multi-media classroom is used, projection screen can block more than half plate face of traditional blackboard, and utilization rate is low.Existing circulation automatic erasing blackboard a kind of circulation automatic erasing blackboard as disclosed in China Patent No. 102350905A is mainly made up of main support, dust cover, rotating frame, blackboard, connecting pin, wiper, adhesive tape, transmission system, transmission system is mainly made up of sprocket wheel, runner, chain, handle and power transmission shaft, wiper by adhesive tape be connected in described blackboard after.This patent one side blackboard is fixed on chain by two coaxial line connecting pins, and in the time of motion, easily around connecting pin axis oscillating, writing on the blackboard is write in the poor impact of stationarity; Wiper is individually fixed in after the blackboard of two sides, cannot selective retention writing on the blackboard, and occupy larger space while changing, convenience is poor.
Summary of the invention
The purpose of this utility model is to propose a kind of self-locking performance cycle spinning of realizing two blackboard surfaces move and attach from wiping function to meet the blackboard device of multiple occasion instructions for use.
For realizing above object, the technical solution adopted in the utility model is:
What blackboard adopted is that Timing Belt drives, power is passed to double-sided synchronous belt by shake hand-operated wheel, make itself and equidistant with it fixing internal tooth one side Timing Belt produce speed difference, thereby make the planet synchronous pulley being connected with blackboard fixed frame can be with its running in the two gap in the time engaging with the two.Like this along with the motion of double-sided synchronous belt, planet synchronous pulley can rotate along gap track translation with blackboard, and this motion has unidirectional delivery and allowing thrust range inner planet belt wheel to drive double-sided belt to move by movement of self axis, realize the self-locking of blackboard surface with this.And middle blackboard eraser can be promoted to do intermittent rotary motion by two blackboard surfaces.Blackboard eraser utilizes antitheft door double end lock core to fix, and install and remove at two all available key rotating vane, and convenient replacement used.When blackboard eraser is loaded onto, blackboard eraser only can be wiped the writing on the blackboard of the plate face moving to opposite side from behind along track, and if two sides all write must wipe one side after full writing on the blackboard time, this blackboard advantage highlights; After blackboard eraser unloads, no matter how two sides blackboard moves, and writing on the blackboard all can retain.Concrete condition can be selected by the person of giving lessons.
The beneficial effect of the utility model circulation automatic erasing blackboard is, is generally applicable to the multiple occasions such as classroom, multi-media classroom, laboratory, in using modernization multimedia equipment, can effectively improve blackboard surface utilization rate.This blackboard integral material light weight, motion stabilization is firm, highly can between 2 meters and 1.2 meters, regulate the demand to meet different height crowds arbitrarily, simple to operate, easy to use, environmental protection, efficient energy-saving, meets future developing trend.
Brief description of the drawings
Fig. 1 is the outside drawing of overlooking of the present utility model.
Fig. 2 is the schematic diagram of overlooking of the present utility model.
Fig. 3 is that master of the present utility model looks outside drawing.
Fig. 4 is main view principle figure of the present utility model.
Fig. 5 is the outside drawing of looking up of the present utility model.
Fig. 6 is the schematic diagram of looking up of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
As shown in Fig. 2, Fig. 4, Fig. 6, what blackboard adopted is that main body Timing Belt drives, hand-operated wheel 13 drives bevel gear set 14 engaged transmission, by left side final drive shaft 17, power is passed to driving gear set 7 and the one side transmission Timing Belt 16 that exposes of below of top, made the inboard double-sided synchronous belt A11 of upper and lower seat and B19 respectively clockwise or rotate counterclockwise simultaneously.The inboard of the seat of panel beating up and down of half hollow is fixed with respectively circle flank of tooth one side Timing Belt A9 and B24 inwardly, there is equidistant gap with the outer flank of tooth of double-sided synchronous belt of motion, make Shang Xia 20, kidney-shaped seat fixes with blackboard surface framework the planet synchronous pulley 12 can be in gap and double-sided synchronous belt gear motion.In the middle of the left side double-sided synchronous belt of upper and lower drives by the middle secondary gear transmission mechanism 10 as belt wheel aligning device, synchronous pulley and the right side double-sided synchronous belt of blackboard eraser seat rotate.Rotate like this hand-operated wheel; when driving planetary belt to rotate along with double-sided synchronous belt; left and right sides blackboard can slide along desired trajectory under the support of lower panel beating seat 15; do respectively the centrosymmetric cycle spinning motion of relative blackboard eraser 18; and this motion has unidirectional delivery; allowing cannot to promote blackboard surface in thrust range and realizing the rotation of double-sided belt, realize blackboard surface motion self-locking with this.Middle blackboard eraser seat 25 is because being done intermittent rotary motion with the upper and lower kidney-shaped seat of blackboard surface framework is tangent by its promotion.Blackboard eraser has two orthogonal rotation limit positions, is respectively all vertical rest position of lock core hole axis and two blackboard surfaces while not carrying out wiping work, the lock core hole axis operating position parallel with two blackboard surfaces when carrying out that work is wiped in writing on the blackboard below.Blackboard eraser can rotate double end lock core intermediate blade blackboard eraser is removed in the time of rest position.
The utility model is not limited to above-mentioned detailed description of the invention.The utility model person of ordinary skill in the field can make multiple amendment, supplements or adopt similar mode to substitute to described detailed description of the invention; not departing from spirit of the present utility model or surmounting the defined scope of appended claims, all in the claimed scope of the utility model.
Claims (5)
1. one kind is utilized Timing Belt to drive planetary belt to realize the blackboard device of circulation auto-erasing writing on the blackboard, it is characterized in that: this device comprises main body track, transmission system, blackboard surface, Double-faced eraser four part compositions, in upper and lower kidney-shaped main body track, have respectively the fixing one side Timing Belt A (8) of inner toothed surface and the motion double-sided synchronous belt A (11) of B (24) and tensioning equidistant with it and B (19), and two blackboard surface upper and lowers are fixed with respectively planetary belt (12); Make double-sided synchronous belt synchronized motion simultaneously in upper and lower main body track by transmission system, thereby drive planetary belt (12) in track, to move between fixing one-side band and motion double-sided belt, to realize the intermittent rotary motion of the centrosymmetric translational motion of the relative blackboard eraser of two blackboard surfaces and Double-faced eraser.
2. circulation blackboard erasing device according to claim 1, it is characterized in that: described main body track is by forming with the fixing upper panel beating seat (2) of U-steel frame (3) and the lower panel beating seat (15) of opening kidney-shaped track mouth tipping upside down in gripper shoe (23), and one side Timing Belt A (8) inwardly of the flank of tooth and B (24) are separately fixed at the inner side up and down of half hollow; Multiple synchronous pulleys (9) are fixed on panel beating seat (2) and gripper shoe (23) center line, support respectively two remain silent double-sided synchronous belt A (11) and B (19); Article two, there is equidistant gap with one-side band A (8) and B (24) respectively in double-sided belt A (11) or B (19), when planetary belt (12) is moved betwixt, can engage with the two simultaneously.
3. circulation blackboard erasing device according to claim 1, is characterized in that: described transmission system is made up of hand-operated wheel (13), drive bevel gear group (14), final drive shaft (17), transmission spur gear group (7), double-sided synchronous belt A (11), roll adjustment gear train (10), one side transmission Timing Belt (16), tensioning apparatus (21), transmission Timing Belt wheels (22), double-sided synchronous belt B (19); Roll adjustment gear train (10) is the transmission mechanism in the middle of every two double-sided belt A (11) or B (19), formed by five spur gears, carry out tensioning both sides double-sided belt by regulating wherein mutual out of mesh three's centre-to-centre spacing to allow five the line of centres become M shape from linear.
4. circulation blackboard erasing device according to claim 1, is characterized in that: described each blackboard surface is made up of a blackboard surface framework (20) and three planetary belts (12); The upper and lower seat of blackboard surface framework is congruent long waist shaped, and two planetary belts are symmetrically fixed on two ends, left and right, top, the seat of honour, and one is fixed on lower below centre, lower seat and lower panel beating seat (15) plane-plane contact; Top planetary belt engages with double-sided belt A (11) and fixed band A (8) respectively, and engage with double-sided belt B (19) and fixed band B (24) respectively below.
5. circulation blackboard erasing device according to claim 1, it is characterized in that: described Double-faced eraser upper and lower is each fixes an antitheft door double end lock core, its central vane can be rotated in the central groove of the blackboard eraser base (25) that snaps in respectively upper and lower blackboard eraser is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318169.7U CN203957626U (en) | 2014-06-16 | 2014-06-16 | A kind of circulation automatic erasing blackboard that utilizes Timing Belt to drive planetary belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318169.7U CN203957626U (en) | 2014-06-16 | 2014-06-16 | A kind of circulation automatic erasing blackboard that utilizes Timing Belt to drive planetary belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203957626U true CN203957626U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420318169.7U Expired - Fee Related CN203957626U (en) | 2014-06-16 | 2014-06-16 | A kind of circulation automatic erasing blackboard that utilizes Timing Belt to drive planetary belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203957626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442114A (en) * | 2014-12-15 | 2015-03-25 | 广西大学 | Blackboard with automatic erasing function |
| CN109130606A (en) * | 2018-08-27 | 2019-01-04 | 杨淞元 | A kind of figure displaying blackboard |
-
2014
- 2014-06-16 CN CN201420318169.7U patent/CN203957626U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442114A (en) * | 2014-12-15 | 2015-03-25 | 广西大学 | Blackboard with automatic erasing function |
| CN109130606A (en) * | 2018-08-27 | 2019-01-04 | 杨淞元 | A kind of figure displaying blackboard |
| CN109130606B (en) * | 2018-08-27 | 2024-05-17 | 杨淞元 | Graphic display 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: 20141126 Termination date: 20150616 |
|
| EXPY | Termination of patent right or utility model |