CN2925915Y

CN2925915Y - Automatic teaching blackboard

Info

Publication number: CN2925915Y
Application number: CNU2006200246106U
Authority: CN
Inventors: 戎文华; 李晓明
Original assignee: Taiyuan University of Technology
Current assignee: Taiyuan University of Technology
Priority date: 2006-06-03
Filing date: 2006-06-03
Publication date: 2007-07-25
Anticipated expiration: 2016-06-03

Abstract

The utility model provides an automatic teaching blackboard. The utility model is characterized in that axle heads of the upper and lower rotating axles are installed in the rolling bearings of the left and right both sides to form a quadrangular frame, a writing pad plate is fixed between the left and right side plate, a soft writing plate is suited on the upper and lower rotating axles to return, a stepper motor is connected with the terminals of the rotating axles, a trace clearer is fixed on the side plate through a trace clearer fixing frame, and the whole blackboard frame is fixed on a wall with rectangled fixing parts. Because a rotating axle bearing and a stepper motor are adopted, the utility model makes the blackboard to be moved up and down freely, saving time and labor, the structure is simple and the cost is low, being suitable for writing in school teaching and any other teaching.

Description

The teaching automatic blackboard

Technical field

The utility model relates to a kind of blackboard for education, especially a kind of teaching automatic blackboard that is used for school student and teacher's learning aid.

Background technology

The existing used blackboard of school instruction, it mostly is conventional fixed formula blackboard, the Reelable blackboard used of classroom for example, generally be to be one group with the two major parts blackboard, be connected with pulley and be installed on the body of wall by tightrope, two blackboards can move up and down exchange mutually during use, when blackboard below having write, upwards push the blackboard of face or pull down top blackboard and can change the position, conveniently write and be convenient to student's record, but move, write, time and effort consuming during blackboard wiping, and when writing and in the wiping process, chalk dust flies upward everywhere, endangers healthy.People have designed some automatic blackboards in recent years, as Chinese patent CN2220368Y " electronic rotation bar shaped blackboard ", adopt driven wheel to connect with chain, the prolongation pivot pin and the stripe board two ends of both sides chain correspondence are affixed, being provided with at the electronic Revolving blackboard back side can be from, the blackboard eraser that pastes, this blackboard can not be eliminated dust pollution, can not segmentation move the space of a whole page, still has certain limitation as writing on the blackboard instrument or demonstration teaching aid.Also have some automatic blackboards, fundamentally do not solve the chalk pollution problem as " the rotating writing blackboard capable of circulation " of Chinese patent CN2305295Y, " multi-functional blackboard " of Chinese patent CN2574909Y and " fully automatic blackboard " of CN2341808Y etc., and complex structure, automated procedure is difficult to accurate.The Chinese patent that the applicant has applied for " a kind of teaching board device ", publication number is CN2691883, finds to have some problems through implementing, therefore, the inventor has done further improvement from structure.

Summary of the invention

The problem that the utility model mainly solves is when teaching writing, the pollution problem of dust and existing writing on the blackboard device are big and heavy, awkward problem, and on the basis of patent applied for, further solve the problem of rub device structure, purpose provides a kind of simple in structure, and is easy to operate, the time saving and energy saving and teaching automatic blackboard of no dust pollution.

The utility model will achieve the above object, the technical scheme of being taked comprises rotating shaft, side plate, soft clipboard, stepper motor, rub device and writing backing plate, its architectural feature is that the two ends spindle nose of lower rotary shaft is installed in the two ends rolling bearing of left side plate, constitute quadra, between left side plate, be fixed with writing backing plate, soft clipboard is set in lower rotary shaft to be changeed last time, termination in rotating shaft is connected with stepper motor, be fixed with the rub device by rub device fixed mount on side plate, the blackboard general frame is fixed on the body of wall by the right angle fixture.

Above-mentioned following roller bearing two ends is provided with the commentaries on classics tooth, and corresponding with the commentaries on classics hole on the soft clipboard and mesh.

Above-mentioned rub device is a rectangular box wide with soft clipboard, its middle and upper part is provided with reservoir and weepage holes, the rub rod is installed in its underpart and following rub rod is exposed outside, rub rod termination is fixed with rub rod roller bearing up and down, and by the fixing rotation of roller bearing fixed head, the rub device is fixed on the side plate by the rub device holddown groove of rub device fixed mount.

The rub rod is to be made of sticking plaster and surperficial fiber seepage layer or sea seepage layer thereof on the above-mentioned rub device; The rub rod is to be made of sticking plaster and surperficial lint xerotripsis layer or sea xerotripsis layer thereof under the rub device.

The utility model has adopted rotating shaft and rolling bearing structure, uses stepper motor, blackboard is moved up and down freely, has overcome the thick, big, stupid of writing blackboard in the prior art, the time-consuming disadvantage of requiring great effort, and the writing implement that makes is simple and easy.On roller bearing, be arranged with soft clipboard, and be provided with corresponding writing backing plate, adopt the liquid lettering pen, when writing, always on the position that is fit to oneself, write, time saving and energy saving, clear facility, and also with low cost.On side plate, be fixed with rub device fixed mount and the rub device is installed, be provided with rub device reservoir and rub rod up and down in the rub device, rotate the person's handwriting that soft clipboard and rub rod up and down always stay by rotating shaft when removing is write, when thoroughly having eradicated the teaching of use chalk, the pollution problem of dust, and also the rub rod is dried felt down, remove soft clipboard face once more by dried felt, the clipboard face that makes is light totally, and is when writing once more, clear bright.The utility model is simple in structure, and is easy to use, with low cost, and simple installation is applicable to that school instruction and various teaching board use.

Description of drawings

Fig. 1 is the utility model front overall frame structure schematic diagram

Fig. 2 is the main TV structure schematic diagram of the utility model rub device

Fig. 3 is the left TV structure schematic diagram of the utility model rub device

Fig. 4 is the plan structure schematic diagram of the utility model rub device

Fig. 5 is the structural representation of the utility model rub device fixed mount

Fig. 6 is the main TV structure schematic diagram of the utility model rotating shaft spindle nose

Fig. 7 is the left TV structure schematic diagram of the utility model rotating shaft spindle nose

Fig. 8 is the utility model side plate termination rolling bearing structure schematic diagram

Fig. 9 is the main TV structure schematic diagram of the utility model automatic blackboard right angle fixture

Figure 10 is the left TV structure schematic diagram of the utility model automatic blackboard right angle fixture

Among the figure: rotating shaft 1 side plate 2 soft clipboard 3 writing backing plates 4 rub device fixed mounts 5 stepper motors 6 right angle fixtures 7 fixed mount screws 8 writing backing plate screws 9 fixture screws 10 change tooth 11 is changeed 14 times rub rods of rub rod, 15 rub device fixed axis, 16 reservoirs, 17 weepage holes, 18 roller bearing fixed heads, 19 rubs rod roller bearing, 20 rub device holddown grooves, 21 rolling bearings 22 on the 12 rub devices 13 of hole

The specific embodiment

Below in conjunction with drawings and Examples the utility model is made further describing, present embodiment is to explanation of the present utility model, the utility model is not made any restriction.

In figure: plastic tube is adopted in the rotating shaft (1) of teaching automatic blackboard, its rotating shaft (1) termination adopts real core sticking plaster to be processed into stepped circle and square spindle nose that band changes tooth (11), side plate (2) adopts aluminium alloy or wood to be processed into and the corresponding side plate (2) of rotating shaft (1), and at the termination of side plate (2) the installation rolling bearing (22) corresponding with rotating shaft (1) spindle nose, soft clipboard adopts smooth smooth Polypropylence Sheet, size matches with rotating shaft (1) and side plate (2), stepper motor is selected for use according to blackboard size and rotating speed, the rub device adopts plastic plate to be made into size and the corresponding rectangle box of rotating shaft (1), writing backing plate adopts smooth smooth wooden plate, and its size is just in time put into the middle lower portion of biside plate (2).Its shape and structure is that the two ends spindle nose of lower rotary shaft (1) is installed in the two ends rolling bearing (22) of left side plate (2), constitutes quadra, and at circumferential rolling, axial restraint.Between left side plate (2) by the fixing writing backing plate (4) of backing plate screw (9).Soft clipboard (3) is set in upward revolution of lower rotary shaft (1) according to the size of rotating shaft (1) and side plate (2).Be fixedly connected with stepper motor (6) in the square termination of lower rotary shaft (1).Upward be fixed with rub device fixed mount (5) and rub device (13) is installed by fixed mount screw (8) at side plate (2), the whole quadra of blackboard is fixed on the body of wall by fixture screw (10) by four right angle fixtures (7).

Above-mentioned rub device (13) is a rectangular box wide with soft clipboard (3), its middle and upper part is provided with reservoir (17), weepage holes (18) correspondence of reservoir (17) be located at rub rod (14) above, make its liquid pass through weepage holes (18) seepage on last rub rod (14), to eliminate written trace; Rub rod (14) is installed in its underpart and following rub rod (15) is exposed outside, so that last rub rod (14) and following rub rod (15) can be close on the soft clipboard; Fixedly be bonded with fiber seepage layer and lint xerotripsis layer on the top layer of last rub rod (14) and following rub rod (15), also can fix bonding sea seepage layer and sea xerotripsis layer, make its wet rubbing, the secondary xerotripsis; Be fixed with rub rod roller bearing (20) in rub rod termination up and down, and by the fixing rotation of roller bearing fixed head (19), the rub device then is fixed on the side plate (2) by the rub device holddown groove (21) of rub device fixed mount (5), and corresponding cooperation with whole automatic blackboard is rotated, and eliminates written handwriting.

During use, press knob, soft clipboard (3) slowly is rolled to the optional position, along with the electro-motor stepping makes soft clipboard (3) when slowly rolling, the wet rubbing thing that is located at the last rub device rod (14) of soft clipboard (3) back is constantly wiped the person's handwriting that soft clipboard (3) is write, simultaneously, the xerotripsis thing that is located at the following rub rod (15) of soft clipboard (3) back is constantly wiped the vestige on the soft clipboard (3), makes soft clipboard (3) keep clean, cleaning or light.

Claims

One kind the teaching automatic blackboard, comprise rotating shaft, side plate, soft clipboard, stepper motor, rub device and writing backing plate, it is characterized in that the two ends spindle nose of lower rotary shaft (1) is installed on the middle formation of two ends rolling bearing (22) quadra of left side plate (2), between left side plate (2), be fixed with writing backing plate (4), soft clipboard (3) is set in lower rotary shaft (1) and goes up revolution, be connected with stepper motor (6) in the termination of rotating shaft (1), upward be fixed with rub device (13) by rub device fixed mount (5) at side plate (2), the blackboard general frame is fixed on the body of wall by right angle fixture (7).
2. teaching automatic blackboard according to claim 1, it is characterized in that up and down the two ends of roller bearing (1) is provided with changes tooth (11), and corresponding with the commentaries on classics hole (12) on the soft clipboard (3) and mesh.
3. teaching automatic blackboard according to claim 1, it is characterized in that rub device (13) is a rectangular box wide with soft clipboard (3), its middle and upper part is provided with reservoir (17) and weepage holes (18), rub rod (14) is installed in its underpart and following rub rod (15) is exposed outside, rub rod termination is fixed with rub rod roller bearing (20) up and down, and by the fixing rotation of roller bearing fixed head (19), the rub device is fixed on the side plate (2) by the rub device holddown groove (21) of rub device fixed mount (5).
4. teaching automatic blackboard according to claim 3 is characterized in that rub rod (14) is to be made of sticking plaster and surperficial fiber seepage layer or sea seepage layer thereof on the rub device; Rub rod (15) is to be made of sticking plaster and surperficial lint xerotripsis layer or sea xerotripsis layer thereof under the rub device.