CN101513809A

CN101513809A - Electric blackboard

Info

Publication number: CN101513809A
Application number: CNA2009100295859A
Authority: CN
Inventors: 裴志胜; 裴春光
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-07
Filing date: 2009-04-07
Publication date: 2009-08-26
Anticipated expiration: 2029-04-07
Also published as: CN101513809B

Abstract

The invention discloses an electric blackboard used for teaching, comprising an electric motor (18), a drive wheel (15), a driven wheel (13), a flexible blackboard (9), a round brush for erasing (16), a dust-removing upright stanchion (4), a positioning corrective device (21), tension devices (10, 11), transmissions (22, 7, 23), a framework (1), an outer cover (19) and an operation panel, etc. The processes of erasing, dust-removing and dust collecting are all carried out inside the operation panel, thus dust has no effect on environment and teachers and students. The electric blackboard is gradually innovated and improved based on the patent number 03112751.7, which has the characteristics of emphasizing structure simplification, lowering cost and ensuring easy production, appealing appearance, cleanliness and sanitation and convenient use and being beneficial to popularization.

Description

Driven blackboard

Technical field

The present invention relates to and teaching equipment in driven blackboard

Background technology

At present, manually erase the board, serious this present situation of dust pollution does not still change, it from the patent No. of existing Chinese patent literature record 03112751.7 driven blackboard, also exist unsatisfactory place, though this patent has solved the problem that manually erases the board, because structure is too complicated, processing and manufacturing cost height, thereby seriously hindered the production and the popularization of driven blackboard.

Summary of the invention

Purpose of the present invention is exactly the problem that exists at above-mentioned driven blackboard, designs a kind of new driven blackboard, solves the complex structure that exists in the prior art, and processing and manufacturing cost height is difficult for producing problems such as popularization.

Technical solution of the present invention:

The present invention removes problem by the dust that increase goes the way of powder vertical rod (4) to solve simply and effectively on the wiping word round brush (16); By increasing dust board (37), blocked contacting of the dust kicked up in the operation panel and wiping word round brush (16) and flexible blackboard (9); By joining under the effect that is incorporated in spring (12) of rocking arm (11) and rocker arm support (10), simplified the tension structure of flexible blackboard (9); By worm gearing, reasonably distributed two kinds of power outputs and rotating speed, structure is very compact simultaneously; Directly lean on mutually with driving wheel (15) by wiping word round brush (16), driving wheel (15) is a driving member, is again support member, has simplified the brushing structure; By having designed a centre bore installation shaft bearing (6), simplified the affixed mode of parts and framework (1), also guarantee precision simultaneously easily; Be provided with ash leakage hole and increase control of dust drawer (17) by bottom, made things convenient for driven blackboard dust in use to handle at operation panel; By setting up adjusting rod (31) on the device (21) of rectifying a deviation in the location, solved the accurate orientation problem of flexible blackboard (9) in assembling process.Details are as follows:

1. driven blackboard is made up of outer cover (19), framework (1), motor (18), flexible blackboard (9), driving wheel (15), driven pulley (13), wiping word round brush (16), a powder vertical rod (4), worm gearing (22,7,23), drive pulley (3,8), rocking arm tensioning apparatus (10,11,12), positioning and rectifying device (21), writing backing plate parts such as (20).

2. motor (18), go powder vertical rod (4), wipe word round brush (16), dust board (37), driving wheel parts such as (15) be installed in the operation panel, operation panel is provided with lid door (24), on the lid door (24) door lock and intelligent delay control switch are arranged, all writings are removed and the collection of dust is all carried out in operation panel, the bottom of operation panel is provided with ash leakage hole, and control of dust drawer (17) is installed in the below of ash leakage hole.

3. driving wheel (15) is affixed with framework (1) by bearing and bearing spider (6), one end of the axle head of driven pulley (13) and rocking arm (11) is affixed; the borehole jack on the other end of rocking arm (11) is on the axle of rocker arm support (10); rocker arm support (10) is affixed with framework (1); spring (12) imposes elastic force to rocking arm (11), and then reaches the tensioning to flexible blackboard (9).

4. be with flexible blackboard (9) on driving wheel (15) and the driven pulley (13), the sideslip problem of flexible blackboard (9) solves in the patent No. is 03112751.7 patent, but flexible blackboard (9) best station in vertical direction determines it is a problem all the time, the present invention is on original basis, by put into practice, theoretical, practice again, found a kind of very simple effective method, be exactly to increase adjusting rod (31), and then can pass through adjusting rod (31) quickly and easily flexible blackboard (9) is located by going up at positioning and rectifying device (21).Positioning and rectifying device (21) mainly is made up of pinch roller (36), upper connecting base (27), lower connecting base (38), upper connecting rod (35), lower connecting rod (39), major axis (29), minor axis (30), balancing pole (32), change gear (33), spring (28), adjusting rod (31), extension arm (34) etc.The correction principle repeats no more here.

5. be connected with worm gear (23) on the driving wheel (15), wipe on the word round brush (16) and be connected with big belt pulley (8) and worm screw (22), driving wheel (15) and wiping word round brush (16) are affixed with framework (1) by bearing and center mounting hole bearing block (6), wiping word round brush (16) leans on mutually with driving wheel (15), be flexible blackboard (9) between the two, writing on the flexible blackboard (9) be flexible blackboard (9) rotate cross kind in wiped word round brush (16) rotation and wiped, rotation speed difference between the two is by worm screw (22), the cooperation of worm and gear (7) and worm gear (23) realizes that worm and gear (7) is affixed with framework (1) by bearing and bearing spider (5).

6. go powder vertical rod (4) to be fixed on the framework (1), remove to be equipped with in the powder vertical rod (4) spring (25), be connected with elasticity steel wire (26) on the spring (25), elasticity steel wire (26) leans on mutually with wiping word round brush (16), the dust of wiping on the word round brush (16) has broken away from wiping word round brush (16) under the elasticity of elasticity steel wire (26) is stirred, the dust that floats in operation panel falls to the bottom of operation panel and falls into control of dust drawer (17) at the iris action of dust board (37).It is that spring (25) and elasticity steel wire (26) concur that elasticity described here is stirred.

7. the location of flexible blackboard (9) can also cooperate with flexible rail with change gear, and then reach the purpose of location by fixed flexible rail on two limits up and down of flexible blackboard (9).

8. go spring (25) and elasticity steel wire (26) in the powder vertical rod (4) can be linked to be integral body, also can the packet segmentation setting.Going powder vertical rod (4) itself can be the single-piece setting, also can be many settings.

Beneficial effect of the present invention:

The present invention has overcome the complex structure that exists in the prior art, the kind of drive is loose, problems such as noise is big, processing and manufacturing cost height, whole innovation scheme all be round reliable, easy to use in guaranteed performance, do not change under traditional situations such as teaching custom, simplified structure reduces cost, and the present invention has accomplished, and introduce to the market for product and to lay a good foundation, complied with the requirement of society to environment-friendly products.

Description of drawings

Fig. 1 is an overall appearance schematic diagram of the present invention.

Fig. 2 is a positive facade structural representation of the present invention.

Fig. 3 is a plan structure schematic diagram of the present invention.

Fig. 4 is a worm and gear driving member schematic diagram of the present invention.

Fig. 5 is the schematic diagram of center mounting hole bearing block of the present invention (6).

Fig. 6 is the structural representation that goes to powder vertical rod (4) of the present invention.

Fig. 7 is the structural representation of positioning and rectifying device of the present invention (21).

The specific embodiment

Below in conjunction with accompanying drawing the present invention and concrete enforcement are described further:

Referring to accompanying drawing, motor (18) is affixed by bearing (2) and framework (1), and power passed to wipe word round brush (16), wipe word round brush (16) and directly lean against driving wheel (on 15, be with flexible blackboard (9) on the driving wheel (15), both do relative brushing rotation, writing on the flexible blackboard (9) is wiped word round brush (16) and is wiped, wipe the dust of being stained with knot on the word round brush (16) and gone elasticity steel wire (26) elasticity in the powder vertical rod (4) to stir, dust disengaging wiping word round brush (16) back is intercepted in operation panel by dust board (37) and falls in the control of dust drawer (17) of bottom.The process of transmission of power is the process of slowing down, wiping word round brush (16) is to realize that by cooperating of worm screw (22), worm and gear (7) and worm gear (23) wiping the required rotating speed of word round brush (16) is to obtain by small belt pulley (3) and cooperating of big belt pulley (8) with driving wheel (15) speed difference between the two.The other end of flexible blackboard (9) is enclosed within on the driven pulley (13), two axle heads of driven pulley (13) are connected with rocking arm (11); the other end of rocking arm (11) has trepanning; the axle on the rocker arm support (10) is through in the trepanning of rocking arm (11); rocker arm support (10) is affixed with framework (1); the twisting force of spring (12) is gone up and promotion driven pulley (13) sideshake at rocking arm (11), and then tensioning flexible blackboard (9).There is writing backing plate (20) at the back side of flexible blackboard (9), and the middle part suitable for reading of another side is equipped with positioning and rectifying device (21).Whole framework (1) is the basis that critical piece is installed, and by the way of installing hole is set on the horizontal plane on two limits up and down of framework (1), has simplified many technological problemses of making in the assembling process.The surface of flexible blackboard (9) is coarse inferior light, and internal layer is provided with tension and strengthens interlayer.On the lid door (24) door lock and intelligent delay control switch are housed.When producing in batches, the part parts can be made working of plastics, deceleration device can be made reduction box, operation panel is according to user's needs, can put also and can put on the right side in a left side, the surface color of flexible blackboard (9) can be green, also can be other color, the preferably inferior light in the surface of face shield (19) He Gaimen (24), more conspicuous thing repeats no more here.

Claims

1, a kind of driven blackboard, form by motor (18), driving wheel (15), driven pulley (13), wiping word round brush (16), flexible blackboard (9), framework (1) etc., flexible blackboard (9) is enclosed within on driving wheel (15) and the driven pulley (13), pass through the transmission device driven rotary by motor (18), wiping word round brush (16) contacts with flexible blackboard (9) wipes writing, dust falls to the operation panel bottom automatically, it is characterized in that:

A, on framework (1), be equipped with and go powder vertical rod (4) more than one, remove to be connected with in the powder vertical rod (4) spring (25), be connected with elasticity steel wire (26) on the spring (25), elasticity steel wire (26) leans on and stirs the dust displacement of wiping on the word round brush (16) mutually with wiping word round brush (16);

One side of b, dust board (37) is close with elasticity steel wire (26) and wiping word round brush (16), blocks dust and wipes contacting of word round brush (16) and flexible blackboard (9);

One end of the axle head of c, driven pulley (13) and rocking arm (11) is affixed, and on the axle of the rocker arm support (10) that the other end of rocking arm (11) is installed in and framework (1) is affixed, spring (12) acts on rocking arm (11) and goes up and make driven pulley (13) sideshake;

D, to wipe between word round brush (16) and the driving wheel (15) be to be connected by worm screw (22) and worm and gear (7) and worm gear (23) realization transmission, and worm and gear (7) is affixed by bearing and bearing block (5) and framework (1);

Be equipped with between e, framework (1) and the flexible blackboard (9) and prevent the off normal positioning and rectifying device (21) of sideslip of flexible blackboard (9);

F, wiping word round brush (16) lean on mutually with driving wheel (15), and flexible blackboard (9) is arranged between the two.

2, driven blackboard according to claim 1 is characterized in that described to remove the elasticity steel wire (26) in the powder vertical rod (4) can be elongated, also can be that grouping disconnects.

3, driven blackboard according to claim 1 is characterized in that described wiping word round brush (16) and driving wheel (15) are affixed with framework (1) by bearing and center mounting hole bearing block (6).

4, driven blackboard according to claim 1 is characterized in that bottom one end of described framework (1) is provided with ash leakage hole, and control of dust drawer (17) is installed in the below of ash leakage hole, and the other end is provided with the case (14) that can rotate folding in the horizontal direction.

5, driven blackboard according to claim 1, it is characterized in that on two limits up and down of described flexible blackboard (9) can affixed flexible rail, cooperates with flexible rail by change gear, reaches the location to flexible blackboard (9).