CN105270045A - Cycle self-clean blackboard using hold-in range to drive planet belt pulley - Google Patents
Cycle self-clean blackboard using hold-in range to drive planet belt pulley Download PDFInfo
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- CN105270045A CN105270045A CN201410265621.2A CN201410265621A CN105270045A CN 105270045 A CN105270045 A CN 105270045A CN 201410265621 A CN201410265621 A CN 201410265621A CN 105270045 A CN105270045 A CN 105270045A
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- blackboard
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Abstract
A self-locking cycle self-clean device specifically relates to a blackboard device; the blackboard uses hold-in ranges to drive a planet belt pulley so as to realize two blackboard surfaces self-locking cycle translational motions, and has an additional board writing automatic wiping function; the blackboard is driven by the hold-in ranges; a hand-operated wheel is rotated so as to drive a transmission system, the transmission system transmits forces to the dual-face hold-in range so as to generate speed difference with a fixed inner tooth one side hold-in range of equal distance, so the planet synchronous belt pulley connected with a blackboard surface frame can run in a gap when being engaged with the two hold-in ranges; along with motions of the dual-face hold-in range, the planet synchronous belt pulley can drive the blackboard to make translational motions along a preset gap, and the motions has unidirectional transmission property, i.e., the blackboard surface cannot be easily pushed to run the dual-face hold-in range, thus ensuring the blackboard surface to realize self-locking in motion. A dual-face board wiper between the two blackboard surfaces can be pushed by the blackboard surface frame so as to make intermittence rotary movement, thus wiping the board writing on the rear blackboard in opposite parallel motions of the two blackboard surfaces. The cycle self-clean blackboard using hold-in ranges to drive the planet belt pulley is stable in structure, simple in operation, convenient in usage, green and environmental protection, high in efficiency, and saves energy.
Description
Technical field
The present invention relates to a kind of classroom circulation blackboard erasing device, be specifically related to a kind of Timing Belt that utilizes and drive 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 adopts is less, fixes and uses or can only move up and down use; When multi-media classroom uses, 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 disclosed in China Patent No. 102350905A forms primarily of main support, dust cover, rotating frame, blackboard, connecting pin, wiper, adhesive tape, transmission system, transmission system is formed primarily of sprocket wheel, runner, chain, handle and power transmission shaft, and wiper is connected to after described blackboard by adhesive tape.This patent one side blackboard is fixed on chain by two coaxial line connecting pins, and when moving easily around connecting pin axis oscillating, writing on the blackboard is write in the impact of stationarity difference; Wiper is individually fixed in after the blackboard of two sides, cannot selective retention writing on the blackboard, and occupies larger space when changing, and convenience is poor.
Summary of the invention
The object of the invention is to propose a kind of self-locking performance cycle spinning 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 used in the present invention 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 the fixing internal tooth one side Timing Belt equidistant with it produce speed difference, thus the planet synchronous pulley be connected with blackboard fixed frame is operated with it when engaging with the two in the two gap.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 namely allowing thrust range inner planet belt wheel cannot drive double-sided belt motion by the movement of own axes, realizes the self-locking of blackboard surface with this.And the blackboard eraser of centre can be promoted to do intermittent rotary motion by two blackboard surfaces.Blackboard eraser utilizes antitheft door double end lock core to fix, and all available key rotating vane in two is installed and removed, and conveniently replaces use.When blackboard eraser is loaded onto, blackboard eraser only can be wiped along track from behind to the writing on the blackboard in the plate face that opposite side moves, and if two sides must wipe after all writing full writing on the blackboard one side 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 circulate beneficial effect of automatic erasing blackboard of the present invention is generally applicable to the multiple occasions such as classroom, multi-media classroom, laboratory, can effectively improve blackboard surface utilization rate while use modernization multimedia equipment.This blackboard integral material light weight, motion stabilization is firm, and highly can regulate arbitrarily with the demand of satisfied different height crowd between 2 meters and 1.2 meters, simple to operate, easy to use, environmental protection, efficient energy-saving, meets future developing trend.
Accompanying drawing explanation
Fig. 1 of the present inventionly overlooks outside drawing.
Fig. 2 of the present inventionly overlooks schematic diagram.
Fig. 3 is that master of the present invention looks outside drawing.
Fig. 4 is main view principle figure of the present invention.
Fig. 5 of the present inventionly looks up outside drawing.
Fig. 6 of the present inventionly looks up schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are 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 passed to the one side drive coordination band 16 driving gear set 7 of top and below exposed, make double-sided synchronous belt A11 and B19 of upper and lower seat inboard respectively clockwise or rotate counterclockwise simultaneously.The inboard of the seat of panel beating up and down of half hollow is fixed with circle flank of tooth one side Timing Belt A9 and B24 inwardly respectively, have equidistant gap with the outer flank of tooth of the double-sided synchronous belt of motion, make the planet synchronous pulley 12 that fixes with blackboard surface framework about 20 kidney-shaped seat can in gap with double-sided synchronous belt gear motion.The left side double-sided synchronous belt of upper and lower drives the synchronous pulley of middle blackboard eraser seat and right side double-sided synchronous belt to rotate by the middle secondary gear transmission mechanism 10 as belt wheel aligning device.Such rotation hand-operated wheel; while the rotation of double-sided synchronous belt driving planetary belt; left and right sides blackboard can slide along desired trajectory under the support of lower panel beating seat 15; do the centrosymmetric cycle spinning motion of relative blackboard eraser 18 respectively; and this motion has unidirectional delivery; namely allowing blackboard surface to be promoted in thrust range and the rotation realizing double-sided belt, blackboard surface motion self-locking is realized with this.Middle blackboard eraser seat 25 is because being promoted to do intermittent rotary by it move with blackboard surface framework upper and lower kidney-shaped seat is tangent.Blackboard eraser has two orthogonal rotation limit positions, is respectively the rest position that when not carrying out erasing work, lock core hole axis is all vertical with two blackboard surfaces, the operating position parallel with two blackboard surfaces with lock core hole axis when carrying out writing on the blackboard erasing work below.Blackboard eraser can rotate double end lock core intermediate blade and remove blackboard eraser when being in rest position.
Claims (5)
1. utilize Timing Belt to drive planetary belt to realize a blackboard device for 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 composition.
2. circulation blackboard erasing device according to claim 1, is characterized in that: described main body track is made up of the upper panel beating seat (2) fixing with U-steel frame (3) and the lower panel beating seat (15) of opening kidney-shaped track mouth tipped upside down in gripper shoe (23).Flank of tooth one side Timing Belt A (8) inwardly and B (24) is separately fixed at the inner side of the seat up and down of half hollow.Multiple synchronous pulley (9) is fixed on panel beating seat (2) and gripper shoe (23) center line, supports two double-sided synchronous belt A (11) and B (19) that remain silent respectively; 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), engages when planetary belt (12) is moved betwixt 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 drive coordination band (16), tensioning apparatus (21), drive coordination band wheels (22), double-sided synchronous belt B (19).Roll adjustment gear train (10) is the transmission mechanism of every two double-sided belt A (11) or B (19) centre, be made up of five spur gears, namely allow the line of centres of five become M shape from linear by regulating the wherein centre-to-centre spacing of mutual out of mesh three and carry out tensioning both sides double-sided belt.
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 above the seat of honour, and one is fixed on centre below lower seat.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 below is then engaged with double-sided belt B (19) and fixed band B (24) respectively.
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, and its central vane can rotate in the central groove of the blackboard eraser base (25) snapping in upper and lower respectively and blackboard eraser is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265621.2A CN105270045A (en) | 2014-06-16 | 2014-06-16 | Cycle self-clean blackboard using hold-in range to drive planet belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265621.2A CN105270045A (en) | 2014-06-16 | 2014-06-16 | Cycle self-clean blackboard using hold-in range to drive planet belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105270045A true CN105270045A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410265621.2A Pending CN105270045A (en) | 2014-06-16 | 2014-06-16 | Cycle self-clean blackboard using hold-in range to drive planet belt pulley |
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| Country | Link |
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| CN (1) | CN105270045A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827884A (en) * | 2017-04-20 | 2017-06-13 | 武汉轻工大学 | A kind of blackboard and blackboard device |
| CN109130606A (en) * | 2018-08-27 | 2019-01-04 | 杨淞元 | A kind of figure displaying blackboard |
-
2014
- 2014-06-16 CN CN201410265621.2A patent/CN105270045A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827884A (en) * | 2017-04-20 | 2017-06-13 | 武汉轻工大学 | A kind of blackboard and blackboard device |
| CN109130606A (en) * | 2018-08-27 | 2019-01-04 | 杨淞元 | A kind of figure displaying blackboard |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |
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| WD01 | Invention patent application deemed withdrawn after publication |