CN205518705U - Device of chalk dust on clearance and collection blackboard eraser - Google Patents

Abstract

The utility model discloses a device of chalk dust on clearance and collection blackboard eraser, including pivot, upper cover, button, device body, band pulley, hand crank, belt conveyor, motor, back shaft and clearance ring. It has the automatic dual function who clears up on the blackboard eraser chalk dust on chalk dust and the manual clearance blackboard eraser. The design of device body up end has the upper cover, the installation of clearance ring is fixed in the pivot, it is protruding that the same strip of evenly distributed structure is gone up to the clearance ring, and the top of the wedge boss in every strip arch is less than cone boss's the prominent top of point form slightly, the back shaft can enough reduce the resistance of chalk dust clearance process on the blackboard eraser, can inject the surface position of blackboard eraser again, the device body is thin wall hollow container, except that upper cover and mounting structure hole, for the enclosed construction, collects the function after the surperficial chalk dust of realization collection blackboard eraser is cleared up. Its simple structure, the operation is convenient, and the clearance effect is clean, it is convenient reliable to collect, does benefit to teaching assistance device field and promotes.

Description

The device of chalk dust in a kind of cleaning and collection blackboard eraser

Art

This utility model relates to a kind of teaching auxiliary device technical field, is specifically related to a kind of cleaning and collects black The device of chalk dust on blackboard eraser.

Background technology

The various kinds of schools such as primary school, middle school and university, in teaching process, most common instructional mode is in teaching During teacher need with chalk writing on the blackboard on blackboard, to wipe with blackboard eraser the most again.Blackboard eraser circulation makes In with, the chalk dust that it accumulates above needs cleaning in time, otherwise affects the wiping effect of blackboard eraser.

At present, on cleaning blackboard eraser, the common method of chalk dust is to be patted in corner etc. by blackboard eraser or swipe, Cause chalk dust to fly upward everywhere, affect bad environmental healthy；The patent of publication number CN2877902 discloses one Kind of chalk dust collector, utilizes chalk dust on monofilament Shu Qingli blackboard eraser in its box, but monofilament bundle and blackboard eraser Between the most spacing, it is difficult to control monofilament bundle and the spacing of blackboard eraser, if press the tightliest to be easily caused monofilament bundle and Blackboard eraser damages, if pressure get Tai Song causes chalk dust effect on monofilament Shu Qingli blackboard eraser bad, and the table of blackboard eraser Face is fine and close cotton-shaped, is completely dependent on chalk dust on monofilament Shu Qingli blackboard eraser and there is dead angle and do not clear up chalk dust, Fully rely on manual operation.

Summary of the invention

It is that blackboard eraser is patted in corner etc. to overcome the common method of chalk dust on existing cleaning blackboard eraser Or scraping, cause chalk dust to fly upward everywhere, affect bad environmental healthy；Do not limit between monofilament bundle and blackboard eraser Position, on cleaning blackboard eraser there is dead angle and do not clear up chalk dust in chalk dust, fully relies on the defects such as manual operation, This utility model provides a kind of new cleaning and collects the device of chalk dust on blackboard eraser.

This utility model specifically solves the technical solution that its technical problem used: a kind of cleaning and collecting On blackboard eraser, the device of chalk dust includes hinge one, hinge two, rotating shaft, bearing one, bearing two, upper cover, grabs Hands, button one, button two, button three, device body, belt wheel, hand crank, transfer tape, motor, Support axle one, support shaft two, support shaft three, support shaft four, clear up ring, conical boss, wedge shape boss one, wedge Shape boss two.Wherein device body is thin wall hollow container；Rotating shaft is assembled to device by bearing one and bearing two (position limiting structure between rotating shaft and device body do not drawn out by note accompanying drawing) on body；Device body upper end Face is designed with upper cover, and upper cover design has handgrip, and upper cover is realized between device body by hinge one and hinge two Couple and folding；Cleaning and collect the device of chalk dust on blackboard eraser have automatically on cleaning blackboard eraser chalk dust and The manually dual-use function of chalk dust on cleaning blackboard eraser, belt wheel is fixed in rotating shaft, and transfer tape couples belt wheel With the output shaft of motor, button one is for rotating forward button, and button two is stop button, and button three is reversion button, Realize driven by motor rotating shaft respectively by button one, button two and button three to rotate forward, stop the rotation and reversely Chalk dust function on the blackboard eraser of cleaning automatically rotated, hand crank is directly inserted into rotating shaft one end by rectangular Rectangle endoporus in, the manual rocking-turn of hand crank realizes chalk dust merit on the manually cleaning blackboard eraser that rotating shaft rotates Can, on cleaning blackboard eraser, chalk dust is capable of with the dual-use function of chalk dust on manually cleaning blackboard eraser mutually automatically Mend, extension fixture service life；Cleaning ring is fixed in rotating shaft (does not draw out cleaning ring in note accompanying drawing And the position limiting structure made between rotating shaft)；It is uniformly distributed the strip projected parts that multiple structure is identical, often on cleaning ring The both sides of individual strip projected parts are wedge shape boss one and wedge shape boss two, wedge shape boss one and wedge shape boss two structure phase With symmetrical, the multiple conical circular cone of continuous distribution in the groove between wedge shape boss one and wedge shape boss two Boss, the top in the wedge shape edge of a knife face of wedge shape boss one and wedge shape boss two is slightly less than the pointed projections of conical boss Top, on cleaning blackboard eraser during chalk dust, blackboard eraser is wiped in the wedge shape edge of a knife face of wedge shape boss one off Surface chalk dust, the loosen surface of blackboard eraser of the pointed projections of conical boss is fine and close flocculent structure, and wedge shape is convex The surface chalk dust of blackboard eraser is wiped in the wedge shape edge of a knife face of platform two again off, by cleaning ring equally distributed multiple Shape projection circulation work, it is achieved the function that the surface chalk dust of blackboard eraser is cleaned；Support shaft one, support shaft two, Support shaft three and support shaft four are assemblied on device body, and structure is identical and can rotate, support shaft one, support shaft Two, support shaft three is parallel with the axis of rotating shaft with the axis of support shaft four；Support shaft one and support shaft two are distributed in Near the side of rotating shaft, support shaft three and support shaft four are distributed in the opposite side near rotating shaft；Support shaft one, The axis of support axle two, support shaft three and support shaft four is in same level；Support shaft can reduce on blackboard eraser The resistance of chalk dust scale removal process；Support shaft one, support shaft two, support shaft three and the extreme higher position of support shaft four Be slightly less than the top in the wedge shape edge of a knife face of wedge shape boss one and wedge shape boss two, for limit blackboard eraser surface and The pointed projections of wedge shape boss one and the top in wedge shape edge of a knife face of wedge shape boss two, conical boss on cleaning ring Distance between top, it is achieved the optimum efficiency of chalk dust on cleaning blackboard eraser；Device body removes upper cover and installation Outside structure hole, for enclosed construction, it is achieved collect the cleaned rear collecting function of surface chalk dust of blackboard eraser.Motor Battery can be used to drive, move conveniently, noise is little.

The beneficial effects of the utility model are, use a kind of cleaning and collect the device of chalk dust on blackboard eraser, solving The common method of chalk dust on current cleaning blackboard eraser of having determined is to be patted in corner etc. by blackboard eraser or swipe, and leads Cause chalk dust to fly upward everywhere, affect bad environmental healthy；Do not have spacing between monofilament bundle and blackboard eraser, clear up black On blackboard eraser there is dead angle and do not clear up chalk dust in chalk dust, fully relies on the problems such as manual operation.Its simple in construction, Operation is convenient, and cleaning effect is clean, it is convenient reliable to collect, and has dual-use function automatic, manual, is greatly improved The service life of device.

Accompanying drawing explanation

Fig. 1 is a kind of cleaning of this utility model and the plan structure signal collecting the device of chalk dust on blackboard eraser Figure；

Fig. 2 be a kind of cleaning of this utility model and collect the device of chalk dust on blackboard eraser face structural representation Figure；

Fig. 3 is that on a kind of cleaning of this utility model and collection blackboard eraser, in Fig. 1 of the device of chalk dust, A-A cuts open TV structure schematic diagram；

Fig. 4 is a kind of cleaning of this utility model and collects amplification at I in Fig. 3 of the device of chalk dust on blackboard eraser Structural representation；

Fig. 5 is that on a kind of cleaning of this utility model and collection blackboard eraser, in Fig. 2 of the device of chalk dust, B-B cuts open TV structure schematic diagram；

Fig. 6 is that the axle clearing up ring on a kind of cleaning of this utility model and collection blackboard eraser in the device of chalk dust cuts Face sectional structure schematic diagram；

Fig. 7 is a kind of cleaning of this utility model and collects the blackboard eraser placement side of the device of chalk dust on blackboard eraser The structural representation of case one；

Fig. 8 is a kind of cleaning of this utility model and collects the blackboard eraser placement side of the device of chalk dust on blackboard eraser The structural representation of case two.

11-1. hinge one in figure, 11-2. hinge two, 12. rotating shafts, 13-1. bearing one, 13-2. bearing two, 14. Upper cover, 15. handgrips, 16-1. button one, 16-2. button two, 16-3. button three, 17. device bodies, 18. belt wheels, 19. hand cranks, 20. transfer tape, 21. motors, 31-1. support shaft one, 31-2. support shaft two, 31-3. support shaft Three, 31-4. support shaft four, 41. cleaning rings, 41-1. conical boss, 41-2. wedge shape boss one, 41-3. wedge shape is convex Platform two, 71. virtual blackboard erasers.

Detailed description of the invention

With embodiment, this utility model patent is further described below in conjunction with the accompanying drawings.

See the device of chalk dust on accompanying drawing, a kind of cleaning and collection blackboard eraser and include hinge one 11-1, hinge two 11-2, rotating shaft 12, bearing one 13-1, bearing two 13-2, upper cover 14, handgrip 15, button one 16-1, presses Button two 16-2, button three 16-3, device body 17, belt wheel 18, hand crank 19, transfer tape 20, electricity Machine 21, support shaft one 31-1, support shaft two 31-2, support shaft three 31-3, support shaft four 31-4, clear up ring 41, conical boss 41-1, wedge shape boss one 41-2, wedge shape boss two 41-3.Wherein device body 17 is thin Wall hollow container；Rotating shaft 12 is assembled on device body 17 (note by bearing one 13-1 and bearing two 13-2 Accompanying drawing is not drawn out the position limiting structure between rotating shaft 12 and device body 17)；Device body 17 upper surface Being designed with upper cover 14, upper cover 14 is designed with handgrip 15, and upper cover 14 is by hinge one 11-1 and hinge two 11-2 Realize coupling and folding with between device body 17；In cleaning and collection blackboard eraser, the device of chalk dust has certainly Chalk dust and the dual-use function of chalk dust on manually cleaning blackboard eraser on dynamic cleaning blackboard eraser, belt wheel 18 is installed solid Being scheduled in rotating shaft 12, transfer tape 20 couples belt wheel 18 and the output shaft of motor 21, and button one 16-1 is just Turning button, button two 16-2 is stop button, button three 16-3 for reversion button, by button one 16-1, Button two 16-2 and button three 16-3 realizes motor 21 respectively and drives the rotating forward of rotating shaft 12, stops the rotation With chalk dust function on the blackboard eraser of cleaning automatically reversely rotated, hand crank 19 and rotating shaft 12 are rectangular Coupling, hand crank 19 is directly inserted in the rectangle endoporus of rotating shaft 12 one end by rectangular, hand crank The manual rocking-turn of 19 realizes chalk dust function on the manually cleaning blackboard eraser that rotating shaft 12 rotates, and automatically clears up blackboard Smear the dual-use function of chalk dust on chalk dust and manual cleaning blackboard eraser and be capable of complementation；Cleaning ring 41 is pacified Dress be fixed in rotating shaft 12 (note accompanying drawing is not drawn out cleaning ring 41 and make between rotating shaft 12 spacing Structure)；Being uniformly distributed multiple strip projected parts on cleaning ring 41, the structure of each strip projected parts is identical, each The both sides of shape projection are wedge shape boss one 41-2 and wedge shape boss two 41-3, and wedge shape boss one 41-2 and wedge shape are convex Platform two 41-3 structure is identical symmetrical, in the groove between wedge shape boss one 41-2 and wedge shape boss two 41-3 The multiple conical conical boss 41-1 of continuous distribution, wedge shape boss one 41-2 and the wedge of wedge shape boss two 41-3 The top in shape edge of a knife face is slightly less than the top of the pointed projections of conical boss 41-1, chalk on cleaning blackboard eraser During ash, the surface chalk dust of blackboard eraser is wiped in the wedge shape edge of a knife face of wedge shape boss one 41-2 off, and circular cone is convex The loosen surface of blackboard eraser of the pointed projections of platform 41-1 is fine and close flocculent structure, the wedge shape of wedge shape boss two 41-3 The surface chalk dust of blackboard eraser is wiped in edge of a knife face off, is followed by equally distributed multiple strip projected parts on cleaning ring 41 Ring works, it is achieved the function that the surface chalk dust of blackboard eraser is cleaned；Support shaft includes support shaft one 31-1, Support axle two 31-2, support shaft three 31-3 and support shaft four 31-4；Support shaft one 31-1, support shaft two 31-2, Support shaft three 31-3 and support shaft four 31-4 is assemblied on device body 17, and structure is identical and can rotate；? Support axle one 31-1, support shaft two 31-2, support shaft three 31-3 and the axis of support shaft four 31-4 and rotating shaft 12 Axis parallel；Support shaft one 31-1, support shaft two 31-2, support shaft three 31-3 and support shaft four 31-4's Axis is in same level；Support shaft one 31-1 and support shaft two 31-2 is distributed near rotating shaft 12 Side, support shaft three 31-3 and support shaft four 31-4 are distributed in the opposite side near rotating shaft 12；Support shaft one 31-1, Extreme higher position on support shaft two 31-2, support shaft three 31-3 and support shaft four 31-4 is slightly less than wedge shape boss one The top in the wedge shape edge of a knife face of 41-2 and wedge shape boss two 41-3, for limiting surface and the cleaning ring of blackboard eraser The top in wedge shape edge of a knife face of wedge shape boss one 41-2 and wedge shape boss two 41-3, conical boss 41-1 on 41 Pointed projections top between distance, there is limit function；Device body 17 is except upper cover 14 and installs knot Outside structure hole, for enclosed construction, it is achieved collect the cleaned rear collecting function of surface chalk dust of blackboard eraser.

In needs cleaning and collection blackboard eraser during chalk dust, the handgrip 15 on hand-held upper cover 14, open dress Put the upper cover 14 of body 17 upper surface.First blackboard eraser is lain in a horizontal plane in above cleaning ring 41 by one hands, Blackboard eraser placement schemes has two kinds, and as shown in Figure 7, blackboard eraser placement schemes one is the width of blackboard eraser With the axis horizontal of rotating shaft 12, as shown in Figure 8, blackboard eraser placement schemes two is the length direction of blackboard eraser With the axis horizontal of rotating shaft 12, the front edge of blackboard eraser is slightly exceeding the axis of rotating shaft 12；Again blackboard eraser is pressed It is pressed in the support shaft with limit function.Another hands pressing button one 16-1, starts and rotates forward button realization certainly Chalk dust function on dynamic cleaning blackboard eraser, or the realization of rocking-turn the most clockwise of hand crank 19 is manually Chalk dust function on cleaning blackboard eraser；Treating the back edge axis slightly exceeding rotating shaft 12 of blackboard eraser, pressing is pressed Button one 16-3, starts reversion button and realizes automatically clearing up chalk dust function on blackboard eraser, or hand crank 19 Manually counterclockwise rocking-turn realize manually chalk dust function on cleaning blackboard eraser；Treat the front edge of blackboard eraser Slightly exceeding the axis of rotating shaft 12, press button one 16-1, start and rotate forward on button realization cleaning blackboard eraser automatically Powder in chalk dust function, or the realization of the rocking-turn the most clockwise manually cleaning blackboard eraser of hand crank 19 Pen ash function；So circulating operation, when on blackboard eraser, chalk dust cleans out, press button one 16-2, startup stops Only button, or hand crank 19 stops rocking-turn.Take out the blackboard eraser that chalk dust cleans out, according to device The surface chalk dust capacity of body 17 inner collection blackboard eraser, collects in real time in assigned position tilting device body 17 Chalk dust, the upper cover 14 of device body 17 upper surface of closing, in case next time use.

Claims (5)

1. cleaning and collect a device for chalk dust on blackboard eraser, including hinge one (11-1), hinge two (11-2), Rotating shaft (12), bearing one (13-1), bearing two (13-2), upper cover (14), handgrip (15), button one (16-1), press Button two (16-2), button three (16-3), device body (17), belt wheel (18), hand crank (19), transfer tape (20), Motor (21), support shaft one (31-1), support shaft two (31-2), support shaft three (31-3), support shaft four (31-4), Cleaning ring (41), conical boss (41-1), wedge shape boss one (41-2) and wedge shape boss two (41-3), its feature exists In: described device body (17) is thin wall hollow container, and device body (17) upper surface is designed with upper cover (14), dress Put body (17) in addition to upper cover (14) and mounting structure hole, for enclosed construction；Belt wheel (18) is fixed on rotating shaft (12) On, transfer tape (20) couples belt wheel (18) and the output shaft of motor (21), button one (16-1), button two (16-2) Realize motor (21) respectively with button three (16-3) and drive rotating forward, stop the rotation and reversely rotating of rotating shaft (12) Automatically cleaning blackboard eraser on chalk dust；Hand crank (19) and rotating shaft (12) are that rectangular couples, and manually shake The manual rocking-turn of (19) is realized chalk dust on the manually cleaning blackboard eraser that rotating shaft (12) rotates；Cleaning ring (41) is installed Being fixed in rotating shaft (12), cleaning ring (41) is uniformly distributed strip projected parts, the structure of each strip projected parts is identical, The both sides of each strip projected parts are wedge shape boss one (41-2) and wedge shape boss two (41-3), wedge shape boss one (41-2) Identical symmetrical with wedge shape boss two (41-3) structure, wedge shape boss one (41-2) and wedge shape boss two (41-3) it Between groove in the conical conical boss of continuous distribution (41-1), wedge shape boss one (41-2) and wedge shape boss two (41-3) top in wedge shape edge of a knife face is less than the top of the pointed projections of conical boss (41-1)；Support shaft one (31-1), the extreme higher position in support shaft two (31-2), support shaft three (31-3) and support shaft four (31-4) is less than wedge shape The top in the wedge shape edge of a knife face of boss one (41-2) and wedge shape boss two (41-3).

The device of chalk dust, its feature in a kind of cleaning the most according to claim 1 and collection blackboard eraser It is that described rotating shaft (12) is assembled on device body (17) by bearing one (13-1) and bearing two (13-2).

The device of chalk dust, its feature in a kind of cleaning the most according to claim 1 and collection blackboard eraser Being that described upper cover (14) is designed with handgrip (15), upper cover (14) is realized by hinge one (11-1) and hinge two (11-2) Couple and folding with between device body (17).

The device of chalk dust, its feature in a kind of cleaning the most according to claim 1 and collection blackboard eraser It is described support shaft one (31-1), support shaft two (31-2), support shaft three (31-3) and support shaft four (31-4) assembling On device body (17), structure is identical and can rotate；Support shaft one (31-1), support shaft two (31-2), support Axle three (31-3) is parallel with the axis of rotating shaft (12) with the axis of support shaft four (31-4)；Support shaft one (31-1), The axis of support axle two (31-2), support shaft three (31-3) and support shaft four (31-4) is in same level；Support shaft One (31-1) and support shaft two (31-2) are distributed in the side near rotating shaft (12), support shaft three (31-3) and support shaft Four (31-4) are distributed in the opposite side near rotating shaft (12).

The device of chalk dust, its feature in a kind of cleaning the most according to claim 1 and collection blackboard eraser Being that described button one (16-1) is to rotate forward button, button two (16-2) is stop button, and button three (16-3) is anti- Turn button.