CN2737568Y - Automatic water-cleaning electric blackboard - Google Patents

Automatic water-cleaning electric blackboard Download PDF

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Publication number
CN2737568Y
CN2737568Y CN 200420075069 CN200420075069U CN2737568Y CN 2737568 Y CN2737568 Y CN 2737568Y CN 200420075069 CN200420075069 CN 200420075069 CN 200420075069 U CN200420075069 U CN 200420075069U CN 2737568 Y CN2737568 Y CN 2737568Y
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CN
China
Prior art keywords
blackboard
roller
self
clearer
automatic water
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200420075069
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Chinese (zh)
Inventor
查志刚
梁建红
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查志刚
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Publication date
Application filed by 查志刚 filed Critical 查志刚
Priority to CN 200420075069 priority Critical patent/CN2737568Y/en
Application granted granted Critical
Publication of CN2737568Y publication Critical patent/CN2737568Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an automatic water-cleaning electric blackboard, which is composed of a support frame (1), a flexible blackboard (2), an upper transmission roller (3), an electric machine (8) and a lower transmission roller (10). The flexible blackboard is fixed on the support frame through the upper transmission roller and the lower transmission roller and can revolve along the annular form of the support frame. The upper transmission roller and the lower transmission roller are driven by the electric machine and in the inner side of the flexible blackboard (2) a backing block (9) is arranged, and in the lower end of the support frame (1) a water chamber (11) is arranged. The water chamber is provided with a hair clearer roller (12) which is connected with the electric machine. The utility model makes use of the characteristic of the rubber transmission band and presses fine figures in the surface so as to enhance the rolling rate of the chalk and abate the reflecting rate. Because a water chamber is positioned on the lower end of the support frame and inside the water chamber a hair clearer roller is arranged, the hair clearer roller can easily clean the blackboard under the drive of the electric machine by moistening the hair clearer roller. Thus, the blackboard can be cleaned very cleanly and the operating time and the intensity of labor of cleaning the blackboard of the teachers and students can be saved and the cost price can be reduced so that the aim of automatic cleaning the blackboard can be achieved.

Description

Automatic water eraser type driven blackboard
Affiliated technical field
The utility model belongs to a kind of teaching equipment, mainly proposes a kind of automatic water eraser type driven blackboard.
Background technology
At present, the blackboard great majority that use in teaching are hard blackboards, and the hard blackboard mainly contains the blackboard that wooden blackboard, cement mortar smear out and the blackboard of ground glass surface.Wooden blackboard, though go up letter written with chalk easily, the easy to crack and distortion of palette face is not being used mostly; The blackboard that cement mortar is smeared out though cost is low, easily collapses piece, if contain husky lacking, its surface is too smooth, and chalk is difficult for writing; The blackboard of ground glass surface, its occupation mode has two kinds, a kind of is fixed plate, and another kind of is that push-and-pull replaces plate up and down, though their easily go up letter written with chalk, but because of frosted glass can not be done too thickly, thickness is generally 5 millimeters, if too thick, just is not easy to install, in use, accidentally be easy to ground glass surface is broken into pieces.Three kinds of above-mentioned hard blackboards, all must manually wipe letter written with chalk, the dust full classroom of wafing, cause teachers and students to be subjected to the pollution of dust, easily suffer from respiratory disease, diminish the healthy of teachers and students, and waste time and energy, influence teaching efficiency, taken valuable instructional blocks of time, this original teaching aid and modern education cause are incompatible, and do not meet environmental requirement, therefore adopt driven blackboard, automatically wiping, collecting dust is effective way, mostly be flexible blackboard and existing driven blackboard adopts, and the mode of wiping all is xerotripsis, collect dust with dust exhaust apparatus, like this, owing to adopt dust exhaust apparatus to collect dust, cause the cost of product to increase, and the ways of writing of taking is still write with traditional chalk, because the characteristic of chalk itself requires the surface of flexible blackboard necessary coarse, just can write letter written with chalk, therefore, when using the mode blackboard wiping of xerotripsis, relatively effort is exported greatly the power of motor simultaneously, and is wiped unclean.
Summary of the invention
The purpose of this utility model promptly is to propose a kind of automatic water eraser type driven blackboard, but makes its Automatic erasing blackboard, and has characteristics pollution-free, laborsaving, easy to use.
The technical solution of the utility model is: have motor, go up live-roller, lower driving roller, flexible blackboard, bracing frame, flexible blackboard is fixed on the bracing frame by last live-roller and lower driving roller, and along the rotation of bracing frame annular, last live-roller and lower driving roller are by driven by motor, and the flexible blackboard inboard is provided with liner plate; One water tank is set below bracing frame, has a mao clearer in the water tank, itself and motor linkage.
Flexible blackboard is the rubber transport tape of annular, and its surface is the thin decorative pattern of inferior light.
The drawing tool frame is set on water tank.
The utility model is simple in structure, easy to use.It is a characteristic of having utilized the rubber transport tape, adopts 2~3 millimeters sandwich soft rubber transport tape, and matt surface presses very thin decorative pattern, with powder utilization and the reduction reflecting rate that strengthens chalk.Owing to below bracing frame, be provided with a water tank, be provided with a hair clearer in the water tank, thereby can make mao clearer blackboard wiping that under the drive of motor, gets wet easily, if the blackboard of wiping is wetter, can utilize the sticking frivolous Rubber blackboard surface of cotton clearer or cleaning that water is siphoned away, like this, both very clean with the blackboard wiping, save the working time and the labour intensity of teachers and students' blackboard wipings again, also reduced cost, thereby reached the purpose of Automatic erasing blackboard.For the ease of the precipitation of chalk powder, strengthened the degree of depth of water tank, make the chalk powder of post precipitation do not translated into the water surface once more, thereby avoided teachers and students to be subjected to the pollution of dust by the hair clearer.Because the automatic lifting of transport tape no longer is restricted teacher's height, along with the slow rising of blackboard rubber transport tape, the student that the back is arranged just can see the word on the blackboard easily.The iron sheet liner plate that is lined with in flexible blackboard makes teacher when teaching needs wall chart, can with strong magnetic nail wall chart be suspended on the blackboard easily.The drawing tool frame that is provided with on water tank can be finished the function of straight line, oblique line, many alphabetical parallel lines, circle and protractors.Adopt circuit to control automatically, can realize the regularly function of blackboard wiping, but every day before class, break equal Automatic erasing blackboard before class.The inversion charging circuit that is provided with in automatic control circuit can make the rubber transport tape reverse downwards, do not erase the board during reversing, thus more convenient and practical.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is a left view of the present utility model.
Accompanying drawing 3 is an iron sheet liner plate scheme of installation of the present utility model.
Accompanying drawing 4 is that last power transmission shaft left end connects schematic diagram with last live-roller.
Accompanying drawing 5 turns to location self-locking mechanism schematic diagram for the utility model.
Accompanying drawing 6 is a circuit diagram of the present utility model.
Structural representation when accompanying drawing 7 is just changeing for the utility model transport tape.
Structural representation when accompanying drawing 8 reverses for the utility model transport tape.
Among the figure, 1, bracing frame, 2, flexible blackboard, 3, last live-roller, 4, the live-roller belt pulley, 5, bogie wheel, 6, the T steel frame, 7, strainer, 8, motor, 9, liner plate, 10, lower driving roller, 11, water tank, 12, the hair clearer, 13, the clearer belt pulley, 14, water inlet, 15, draining valve, 16, cotton clearer, 17, the mapping Measuring instrument rack, 18, drawing tool, 19, chute, 20, bolt, 21, last power transmission shaft, 22, baffle ring, 23, alignment pin, 24, guide groove, 25, compression spring, 26, eccentric wheel, 27, one-way clutch, 28, just changeing alignment pin, 29, the self-locking link rod, 30, the self-locking tension spring, 31, shank of the key.
The specific embodiment
Embodiment to utility model is further described in conjunction with the accompanying drawings:
As shown in Figure 1, 2, present embodiment mainly comprises bracing frame 1, flexible blackboard 2, goes up live-roller 3, lower driving roller 10 and motor 8, flexible blackboard 2 is the rubber transport tape of annular, it is sleeved on live-roller 3 and the lower driving roller 10, and be fixed on the bracing frame 1, and rotate along the bracing frame annular, motor 8 is set on bracing frame 1, it drives upper and lower live-roller and rotates.Be provided with liner plate 9 (as shown in Figure 3) in rubber transport tape inboard, this liner plate 9 is the iron sheet liner plate, it is positioned between two bracing frames, be respectively arranged with chute 19 two bracing frame tops, bottoms, be provided with bolt 20 in chute 19, bolt one end and liner plate screw thread are fixed, to adjust the last lower angle of liner plate, the effect of iron sheet liner plate is when guaranteeing to write on Rubber blackboard, not turning-in of Rubber blackboard.Strong magnetic nail is set on Rubber blackboard 3, it is inhaled mutually, with iron sheet liner plate 9 so that the middle wall chart of teaching.The last power transmission shaft 21 of band baffle ring 22 is set at the left end (as shown in Figure 4) of last live-roller 3, last power transmission shaft 21 is positioned at the inner and lays respectively at live-roller 3 inside, it is fixing by alignment pin 23, the last power transmission shaft 21 of left end is arranged on the upper end of bracing frame 1 by bearing block, last power transmission shaft right-hand member is identical with the draw bail of last live-roller left end, outer setting live-roller belt pulley 4 at last power transmission shaft right-hand member, and by belt and electrical machine belt pulley interlock, lower driving roller 10 is identical with connecting of power transmission shaft with last live-roller with the draw bail of two ends power transmission shaft, the power transmission shaft at these lower driving roller two ends is separately positioned on the lower end of bracing frame 1 by bearing block, thereby is rotated by driven by motor live-roller belt pulley 5.In order to prevent to cause the bending of upper and lower live-roller to be out of shape because of the deadweight of rubber transport tape and upper and lower power transmission shaft and the effect of rubber transport tape tensioning, therefore, between the two stands on the top of the bottom of last live-roller 3, lower driving roller 10, fix a T steel frame 6 respectively, on T steel frame 6, be provided with several to metallic support wheel 7, every pair of support wheel contacts with live-roller, mainly is to prevent live-roller flexural deformation (as shown in Figure 2).The both sides of the T steel frame 6 under last live-roller 3 are provided with strainer 7 (as shown in Figure 1), to guarantee that the Rubber blackboard transport tape is non-slip in transmission process.One water tank 11 (as shown in Figure 1) is set below bracing frame 1, it is the water cleaning container, has mao clearer 12 in the water tank 11, hair clearer 12 two ends are provided with the hair clearer power transmission shaft of band baffle ring respectively, hair clearer power transmission shaft is positioned at the inner and lays respectively at mao clearer 12 inside, both fix by alignment pin, the hair clearer power transmission shaft at two ends is separately positioned on the lower end of bracing frame 1 by bearing block, its right-hand member hair clearer power transmission shaft outer setting clearer belt pulley 13, the diameter of clearer belt pulley 13 is 1/4 of live-roller diameter pulleys, be that the live-roller belt pulley changes 1 circle, the clearer belt pulley changes 4 circles, it is by the interlock of a connecting rod regulating wheel and electrical machine belt pulley, and hair clearer 12 adopts the softer hairbrush cleaning that gets wet, and effect is in order to alleviate its resistance to the generation of Rubber blackboard conveyer belt.Side at water tank 11 is provided with water inlet 14, so that be equipped with special-purpose funnel water filling in it, is provided with draining valve 15 below water tank 11, so that the powder precipitation thing of chalk in the water tank is discharged.Arranged outside one cotton clearer 16 (as shown in Figure 2) below the Rubber blackboard transport tape, cotton clearer also can be that cleaning is sticking, and its effect is to be convenient to use the water mark on the cotton clearer blackboard wiping again after the wiping of hair clearer.One mapping Measuring instrument rack 17 (as shown in Figure 2) also is set on water tank 11, on mapping Measuring instrument rack 17 drawing tool 18 is set, drawing tool 18 comprises ruler, compasses, protractor, and its effect is to be convenient to teacher to say class hour, draws with convenient.Be provided with guide groove 24 (as shown in Figure 5) at water tank 11 two ends, the bottom of guide groove 24 is provided with compression spring 25, clearer roll shaft two ends are arranged in the guide groove 24, two ends are provided with an eccentric wheel 26 respectively on the power transmission shaft of lower driving roller 10, eccentric wheel 26 is arranged on the power transmission shaft of lower driving roller by one-way clutch 27 (unilateral bearing), on eccentric wheel 26, be provided with one and just changeing alignment pin 28, one self-locking mechanism is set on the water tank below the eccentric wheel 26, it is by self-locking link rod 29, self-locking tension spring 30 and shank of the key 31 constitute, self-locking tension spring 30 is arranged on the guide groove 24, one end and water tank 11 are fixing, the bottom of the other end and self-locking connecting rod 29 is fixed, the top and the water tank of self-locking link rod 29 are hinged, and shank of the key 31 is positioned at the bottom of self-locking link rod 29.When just changeing, clutch 27 is not worked, and is subjected to alignment pin 28 to withstand the effect of self-locking link rod 29, and eccentric wheel 26 is not rotated with lower driving roller 10 positive veers; During reversing, one-way clutch 27 work, eccentric wheel reverses with lower driving roller, and eccentric wheel is away from axle center face extruding clearer axial plane, clearer is moved down along guide chute, when cleaning roll shaft upper end moves to the self-locking link rod bottom the time, self-locking link rod 29 lower ends are subjected to the effect of self-locking tension spring 30, block the loop that clearer moves upward, because the effect of lever, the self-locking link rod upper end of former shelves eccentric wheel one end makes eccentric wheel when reversing away from eccentric wheel, is not stopped by the self-locking link rod.In the motor reversing, do not allow mao surface of clearer blackboard wiping, after reversing finishes, when beginning is just being changeed, also do not allow clearer to automatically reset and begin to clean blackboard, decontrol must be manual, be that teacher is when blackboard rotates correct position, manually remove the clearer locking mechanism, at this moment, clearer just has cleaning action.
As shown in Figure 6, automatic control circuit is installed on bracing frame, an inversion charging circuit is set in the automatic control circuit, chargeable battery is housed in it, when connecting power supply, be always charge in batteries.When having a power failure, press hand switch, charging accumulator begins to work, for motor provides power supply.When machine operation, send a signal by the infrared remote receiver of infrared remote controller on bracing frame that is arranged on the blackboard eraser, to start working by driven by motor Rubber blackboard transport tape, the inversion charging circuit in the circuit does not influence the operate as normal of motor.Shown in Fig. 7,8, when driven by motor live-roller belt pulley 4 was just changeing with a hair clearer belt pulley 13, a hair clearer 12 contacted with lower driving roller 10, and a hair clearer 12 is started working blackboard wiping; During reversing, hair clearer 12 is subjected to the effect of clutch cam and breaks away from and the contacting of lower driving roller 10, and a hair clearer is failure to actuate.

Claims (9)

1, a kind of automatic water eraser type driven blackboard, have bracing frame (1), flexible blackboard (2), go up live-roller (3), motor (8), lower driving roller (10), flexible blackboard (2) is fixed on the bracing frame (1) by last live-roller (3) and lower driving roller (10), and along the rotation of bracing frame annular, last live-roller (3) and lower driving roller (10) are driven by motor (8), and the inboard of flexible blackboard (2) is provided with liner plate (9); It is characterized in that: in the below of described bracing frame (1) water tank (11) is set, has a mao clearer (12) in the water tank (11), itself and motor linkage.
2, automatic water eraser type driven blackboard according to claim 1, it is characterized in that: between two bracing frames on the top of the bottom of last live-roller (3), lower driving roller (10), fix a T steel frame (6) respectively, on T steel frame (6), be provided with two pairs or more support wheel (5).
3, automatic water eraser type driven blackboard according to claim 1 is characterized in that: flexible blackboard (2) is the rubber transport tape of annular, and its surface is the thin decorative pattern of inferior light.
4, automatic water eraser type driven blackboard according to claim 1 is characterized in that: described liner plate (10) is the iron sheet liner plate.
5, automatic water eraser type driven blackboard according to claim 1, it is characterized in that: be respectively arranged with chute (19) in the upper and lower of two bracing frames (1), be provided with bolt (20) in chute (19), bolt (20) one ends and liner plate (9) screw thread are fixed.
6, automatic water eraser type driven blackboard according to claim 1 is characterized in that: on the support outside the below of flexible blackboard (2) cotton clearer (19) is set.
7, automatic water eraser type driven blackboard according to claim 1, it is characterized in that: be provided with guide groove (24) at described water tank (11) two ends, the bottom of guide groove (24) is provided with compression spring (25), hair clearer roll shaft two ends are arranged in the guide groove (24), two ends are provided with an eccentric wheel (26) respectively on the power transmission shaft of lower driving roller (10), eccentric wheel (26) is arranged on the power transmission shaft of lower driving roller (10) by one-way clutch (27), and being provided with one on eccentric wheel (26) is just changeing alignment pin (28).
8, automatic water eraser type driven blackboard according to claim 7, it is characterized in that: on the water tank of described eccentric wheel (26) below, a self-locking mechanism is set, this self-locking mechanism is made of self-locking link rod (29), self-locking tension spring (30) and shank of the key (31), self-locking tension spring (30) is arranged on the guide groove (24), one end and water tank (11) are fixing, the bottom of the other end and self-locking connecting rod (29) is fixed, the top and the water tank of self-locking link rod (29) are hinged, and shank of the key (31) is positioned at the bottom of self-locking link rod (29).
9, automatic water eraser type driven blackboard according to claim 1 is characterized in that: drawing tool frame (17) is set on water tank (11).
CN 200420075069 2004-11-08 2004-11-08 Automatic water-cleaning electric blackboard Expired - Fee Related CN2737568Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420075069 CN2737568Y (en) 2004-11-08 2004-11-08 Automatic water-cleaning electric blackboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420075069 CN2737568Y (en) 2004-11-08 2004-11-08 Automatic water-cleaning electric blackboard

Publications (1)

Publication Number Publication Date
CN2737568Y true CN2737568Y (en) 2005-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420075069 Expired - Fee Related CN2737568Y (en) 2004-11-08 2004-11-08 Automatic water-cleaning electric blackboard

Country Status (1)

Country Link
CN (1) CN2737568Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103332045A (en) * 2013-06-14 2013-10-02 张更生 Dust-free blackboard
CN105128575A (en) * 2015-09-07 2015-12-09 贺佳 Blackboard for English teaching
CN105942739A (en) * 2016-06-20 2016-09-21 南京工业职业技术学院 Self-cleaning blackboard cabinet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103332045A (en) * 2013-06-14 2013-10-02 张更生 Dust-free blackboard
CN105128575A (en) * 2015-09-07 2015-12-09 贺佳 Blackboard for English teaching
CN105942739A (en) * 2016-06-20 2016-09-21 南京工业职业技术学院 Self-cleaning blackboard cabinet

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CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee