CN100418792C

CN100418792C - Blackboard eraser

Info

Publication number: CN100418792C
Application number: CNB2004100742258A
Authority: CN
Inventors: 赖锡璜; 赖锡瑚
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-03
Filing date: 2004-09-03
Publication date: 2008-09-17
Anticipated expiration: 2024-09-03
Also published as: EP1806239A4; EP1806239A1; CN1743186A; KR20070038117A; WO2006024219A1

Abstract

The present invention relates to a blackboard eraser which comprises an outer shell body, wherein the bottom of the outer shell body is provided with a first holding chamber. A brush is arranged at the bottom of the first holding chamber in which a cushion block is arranged. A plurality of rolling wheels are combined on the cushion block in a rotational mode. A cleaning cloth forms a ring shape and surrounds the upper part of the rolling wheels. The cleaning cloth can slide around the outer side of the cushion block. The inner lateral surface of the cleaning cloth contacts the brush. A collecting box is arranged at the top of the outer shell body in a separable mode and is communicated with the first holding chamber. A filter bag is arranged in the collecting box. An exhaust fan is arranged at one side of the collecting box. Chalk ash in the first holding chamber can be sucked into the collecting box without passing through the filter bag. Therefore, when the cleaning cloth slides and passes through the brush, the chalk ash attached on the brush can be cleaned, and the chalk ash which is cleaned is sucked into the collecting box by the exhaust fan. Therefore, the present invention has the advantages of good cleaning effect, easy and convenient operation and use, and little space occupation.

Description

Blackboard eraser

Technical field

The present invention relates to a kind of blackboard eraser, refer to a kind ofly have good wiping effect especially, manipulate blackboard eraser light and benefit such as do not take up space.

Background technology

The blackboard eraser structure of the chalk dust of general known blackboard wiping has following several:

One, shown in No. the 83213896th, TaiWan, China patent application " endless belt type whip this dedust formula blackboard eraser ", it is mainly the transmission bar that a protrusion is arranged with the inboard, endless belt in a wiping, and each roller stage casing is provided with groove, can embed for the transmission bar of this wiping with the endless belt, so that the endless belt is fixed on the roller, wiping surface horizontally slips in the time of can preventing blackboard wiping, and can use the friction that increases between endless belt and the rear roller, and when blackboard eraser being pressed on the blackboard when promoting wiping and using the endless belt, also can drive rear roller with endless belt and inboard transmission bar thereof by this wiping, rotate a hairbrush roller of being located at rear side by the driving-belt at the two ends, the left and right sides of rear roller again, and make bristle and this wiping on this hairbrush roller form rightabout rotation with the endless belt, brush in the grey box of pen with the chalk dust on the endless belt will be built-up in wiping, but the structure of this patent case has following disappearance:

1, because this hairbrush roller is concave arc shape, several can be removed wiping totally with the chalk dust on the endless belt fully so this hairbrush roller and endless belt in the contact-making surface contact area of tool one straight line only, need when therefore brushing chalk dust to roll back and forth.

2, only depend on second wheel that it is supported because of this wiping with the endless belt, therefore this wiping uses the endless belt when wiping, just be easy to the situation of sagging indent take place, and this wiping only has the part that is supported by roller to exist with the wiping area of endless belt and the effect of wiping is had a greatly reduced quality when resulting in wiping because of the application of force makes the part that is supported between two rollers.

3, because it only utilizes the wiping on the blackboard eraser to bring blackboard wiping with annular, reach by the hairbrush roller wiping is collected in pen ash box with the chalk dust brush that attaches on the endless belt, yet this wiping with the endless belt in wiping and hairbrush roller when brush is established, this chalk dust can fly away in air because of moving of blackboard eraser, chalk dust is partly promptly sucked in the health by the user, and jeopardizes the health of human body.

Two, shown in TaiWan, China patent application No. 87206860 " dust-sucking eraser device ", its mainly in a groove shape housing mat plural number spacer fix a wiping body, and make the exhausting compartment that remains with suitable spacing between this wiping body and housing, and be provided with the universal ball end of spherical wall in this housing one side in addition for the socket dust catcher, and be provided with the comprehensive control transmitter that shakes again thereon in addition, yet the structure of this known patent case is to have following disappearance in reality use enforcement:

1, because it utilizes a wiping body to come the wiping chalk dust, because of being stained with chalk dust the effect of its wiping is significantly reduced so the contact-making surface of this wiping body and blackboard is easy.

2, can attach on the contact-making surface of this wiping body and blackboard because of this chalk dust major part, this connects the side that groove shape housing then is located in the inlet scoop of establishing dust catcher, so the effect of its dust suction is not good, unless the suction of this dust catcher is quite big when the chalk dust of wiping body front side promptly can't be in wiping at once by dust catcher with it suction.

3, since its with dust catcher between be connected with a tube connector, so can increase the weight of blackboard eraser and cause inconvenience in the use in use going up this tube connector, especially the setting of this tube connector can interfere with the action of user's blackboard wiping especially, and this tube connector and dust collector structure comparatively take up room when also making it to use.

Three, the TaiWan, China patent case that the inventor applied for, promptly application number is 91221547 " blackboard eraser structural improvement ", has following disappearance:

1, mainly provided the effect of wiping by cleaning wiping cloth when wiping, but the chalk dust that wiping is attached when being distributed in wiping flies away in air because of moving of blackboard eraser easily again, chalk dust is promptly sucked in the health by the user, and jeopardizes the health of human body.

2, it has a dust catcher and engages with body, after the dust catcher power drives, be positioned on the cleaning wiping cloth or the chalk dust or the dust of near the wiping of institute promptly are sucked into dust catcher via body, but since its with dust catcher between be to be connected with a body, so can increase the weight of blackboard eraser and cause inconvenience in the use in use going up this body, especially the setting of this body more can interfere with the action of user's blackboard wiping.

The inventor is because the drawback that produced of above-mentioned known blackboard eraser structure, and its design experiences of Related product for many years of mat, makes great efforts and development and Design goes out blackboard eraser of the present invention through long-term going up.

Summary of the invention

The technical problem to be solved in the present invention is: a kind of blackboard eraser is provided, the defective that it has overcome known technology, have wiping effect good, manipulate light and benefit such as do not take up space.

Technical solution of the present invention is: a kind of blackboard eraser, it comprises members such as a shell body, a hairbrush, plural roller, a cushion block, a cleaning wiping cloth, an extraction fan and a collection box, wherein: this shell body is provided with first room under shed, end face then is provided with the caulking groove and second room, this caulking groove communicates with first room, and second room communicates with this caulking groove; This hairbrush is located in this first room, and is contacted with a side of cleaning wiping cloth; This plural number roller is hubbed in the cushion block; This cushion block is fixed in first room of this shell body, and make the protruding shell body outside that is exposed to of plural roller, the both sides of this cushion block respectively are provided with a lateral plate and are pivoted for the axle bolt, end in this lateral plate is provided with a chute, and these axle bolt two ends that are hubbed at cushion block one side respectively are provided with a slide block and are embedded in this chute for sliding, and are provided with a flexible member supply its contact between a side of this slide block and chute; This cleaning wiping cloth is round and is set around on the plural roller, for can be around the slippage of the cushion block outside; This extraction fan is located in this second room, and can drive it makes exhausting to caulking groove action by a power spare; This collection box is located on this caulking groove, and the extraction fan in this second room can suck the chalk dust of first room and collect in the box.

Blackboard eraser of the present invention, comprise that shell body bottom is provided with one first room, one hairbrush is located at this first room bottom, one cushion block is located in this first room, the plural number roller is incorporated on this cushion block in rotating mode, one cleaning wiping cloth is round and is set around on this plural number roller, and make it can be around the outside slippage of this cushion block, and the medial surface of this cleaning wiping cloth contacts with this hairbrush, one collection box is located at this shell body top in separable mode and is communicated with this first room, be provided with a filter bag again in this collection box, an extraction fan is located at this collection box one side, and can suck in the collection box across the chalk dust of this filter bag with first room; So, just can be in the time of can making it through hairbrush by the slippage of this cleaning wiping cloth with under the chalk dust brush that attaches thereon, and brush chalk dust down can suck through extraction fan and collects in the box so that its have wiping effect good, reduce the chalk dust that sucks human body, manipulate the light benefit that does not take up space that reaches.

Description of drawings

Fig. 1 is the three-dimensional exploded view at top of the present invention.

Fig. 2 is the three-dimensional exploded view of the present invention bottom.

Fig. 3 is a portion of element combination appearance figure of the present invention.

Fig. 4 is a stereo appearance figure of the present invention.

Fig. 5 is a combination section of the present invention.

Fig. 6 is a part sectioned view of the present invention.

Fig. 7 is the exploded view that cooperation cradle of the present invention uses.

The drawing reference numeral explanation:

10, shell body 11, first room 110, through hole

12, caulking groove 120, slide rail 13, second room

130, wind 14, guide card 15, fixing hole

16, lid 17, switch 20, hairbrush

30, cleaning wiping cloth 40, roller 50, axle bolt

500, slide block 51, flexible member 52, gim peg

60, cushion block 61, slotted eye 62, lateral plate

63, chute 70, pad 80, extraction fan

81, power spare 82, battery 90, collection box

900, groove 901, collecting chamber 902, perforation

903, opening 91, filter bag 910, fixed part

A, cradle

The specific embodiment

The present invention mainly is the continent patent case of applying for according to inventor ZLO3236850.X number " blackboard eraser structure " application case of application again after repeatedly improving.

See also Fig. 1 to shown in Figure 4, preferred embodiment for blackboard eraser of the present invention, its structure mainly includes members such as a shell body 10, a hairbrush 20, four rolling 40, a cushion block 60, a cleaning wiping cloth 30, a pad 70, an extraction fan 80 and a collection box 90, wherein:

This shell body 10, its bottom surface is provided with first room 11 under shed, end face then is provided with a caulking groove 12 and one second room 13, the bottom of this first room 11 is provided with a through hole 110 and communicates with this caulking groove 12, and also be provided with two groups of holes 15 that are relatively fixed on the two side of this first room 11, these caulking groove 12 dual-sides be provided with and two be "

" shape and the slide rail 120 that is oppositely arranged, this second room 13 then is provided with an air port 130 and communicates with this caulking groove 12, and is provided with guide card 14 in these second room, 13 1 sides, and is covered with a lid 16 in its end face, on this lid 16 and be provided with a switch 17;

This hairbrush 20 is the sheet of a tool equivalent area, and is located at through hole 110 1 sides of these first room, 11 bottoms, and makes this hairbrush be contacted with a side of cleaning wiping cloth 30;

This four rolling 40 is hubbed at it in cushion block 60 with a bolt 50 respectively, so that it can rotate in cushion block 60, and these axle bolt 50 two ends that wear outermost roller 40 are respectively equipped with a slide block 500, and a side of this slide block 500 has also been replaced a flexible member 51;

This cushion block 60, its both sides are provided with on lateral plate 62 is fixed in this shell body 10 for two gim pegs 52 wear the fixing hole 15 of first room 11, and on this cushion block 60 and be provided with four slotted eyes that run through 61 and reveal to shell body 10 outsides for four rolling 40 Local Convex that are pivoted thereon, be provided with chute 63 in this lateral plate 62 in addition and can slide embeddings, and a side of this chute 63 also can be for the other end contact of elasticity element 51 for the slide block 500 of axle bolt 50;

This cleaning wiping cloth 30 is round and is set around on this four rolling 40, and is limited to therebetween by two lateral plates 62 of cushion block 60, can and can be limited for this cleaning wiping cloth 30 that it is unlikely by breaking away from the roller 40 around these cushion block 60 outside slippages by this two lateral plate 62;

This pad 70 is that a soft materials is made, and it is sheathed on the perforated wall edge of first room 11 of shell body 10, and when making the action of carrying out blackboard wiping, this pad 70 can be avoided the edge abrasion blackboard of blackboard eraser;

This extraction fan 80, be located in this second room 13, and can utilize a power spare 81 (as motor etc.) to drive it by air port 130 place's exhausting, and this power spare 81 has four batteries of being located in this second room 13 82 that its electric power is provided, and this battery 62 also is connected to charging circuit on the guide card 14 of a side, so that it can be by a cradle A with its charging (as shown in Figure 7);

This collects box 90, its both sides are provided with groove 900 and can be embedded on the slide rail 120 of this caulking groove 12 for sliding, it is incorporated on this shell body 10, and in this collection box 90, be formed with a collecting chamber 901, these collecting chamber 901 1 sides are provided with a perforation 902 with respect to through hole 110 places, for being communicated with this collecting chamber 901 and first room 11, the opening 903 of this collecting chamber 901 then is communicated with the air port 130 of this second room 13, be provided with a breathable filter bag 91 in addition in this collecting chamber 901 again, the openend of this filter bag 91 is provided with a fixed part 910 for opening 903 places of being fixed in this collecting chamber 901.

Behind roller 40 and axle bolt 50 phase fits, when a roller 40 and an axle bolt 50 are inserted in the cushion block 60 more as shown in Figure 3.

See also shown in Figure 4, make when having attached chalk dust on its contact-making surface when utilizing these cleaning wiping cloth 30 blackboard wipings, just a side that can make this cleaning wiping cloth 30 attach chalk dust by promoting this blackboard eraser slides onto first room, 11 medial surfaces, and it can be fallen by hairbrush 20 brushes through out-of-date.

And when being enable position as this switch 17 this moment, then this extraction fan 80 just can see through this filter bag 91 and this be brushed the chalk dust that falls collected in the box 90 by through hole 110 suctions of shell body 10, and this chalk dust also can make it can not be inhaled among the extraction fan 80 by the obstruct of this filter bag 91, and when these collection box 90 collection are received the chalk dust of appropriate amount, just can be with it by separating cleaning on the shell body 10.

See also Fig. 5, shown in Figure 6, when this blackboard eraser when promoting, this roller 40 of being located at cushion block 60 1 sides just can be by the effect of the slide block 500 of this bolt 50 of flexible member 51 pushing tows, therefore and make it maintain an elastic telescopic displacement, but and make cleaning wiping cloth 30 mats that are sheathed on this roller 40 it is often possessed a suitable tension force and is beneficial to wiping.

See also shown in Figure 7ly, blackboard eraser integral body can place on the cradle A, and cradle A can be provided with switch, and the battery 82 in second room 13 that promptly can be this shell body 10 after the switch opens provides the electric power of charging.

Another embodiment of the present invention, this lid 16 can be covered on second room 13 of shell body 10, and that battery 82 can change into is non-rechargeable, after battery 82 provides electricity usage to finish, loam cake 16 can be taken off, and change the battery 82 in second room 13.

Another embodiment of the present invention, shell body 10 can have an electric wire, and electric wire links to each other with battery 82 after can seeing through circuit board, but makes also plug-in use of blackboard eraser of the present invention.

Because the present invention has above-mentioned special structure, so when reality is used, have following plurality of advantages:

1, owing to utilizing the slip of cleaning wiping cloth 30 to reach, the present invention utilize hairbrush 20 to clean the effect of chalk dusts, and this cleaning wiping cloth 30 inboard and cushion block 60 is arranged with its support, and make the contact area of itself and blackboard is a bigger plane, so it has preferable wiping effect.

2, the chalk dust that is fallen by hairbrush 20 brushes because of the present invention, and the chalk dust of cleaning wiping cloth 30 wipings can suck it by extraction fan 80 immediately and collect in the box, so can reduce the situation that sucks too much chalk dust when erasing the board in a large number.

3, owing to the present invention directly is located on this blackboard eraser in order to the extraction fan 80 that absorbs chalk dust, thus comparatively light on using, and also do not take up room.

Though the present invention discloses with specific embodiment; but it is not in order to limit the present invention; any those skilled in the art under the prerequisite that does not break away from design of the present invention and scope or according to equivalent variations and modification that scope of patent protection of the present invention is done, all should still belong to the category that this patent is contained.

Claims

1. blackboard eraser, it is characterized in that, include: a shell body, a hairbrush, a plurality of roller, a cushion block, a cleaning wiping cloth, an extraction fan and are collected box, wherein: this shell body is provided with first room under shed, end face then is provided with the caulking groove and second room, this caulking groove communicates with first room, and second room communicates with this caulking groove; This hairbrush is located in this first room, and is contacted with a side of cleaning wiping cloth; These a plurality of rollers are hubbed in the cushion block; This cushion block is fixed in first room of this shell body, and make the protruding shell body outside that is exposed to of a plurality of rollers, the both sides of this cushion block respectively are provided with a lateral plate and are pivoted for the axle bolt, end in this lateral plate is provided with a chute, and these axle bolt two ends that are hubbed at cushion block one side respectively are provided with a slide block and are embedded in this chute for sliding, and are provided with a flexible member supply its contact between a side of this slide block and chute; This cleaning wiping cloth is round and is set around on a plurality of rollers, for can be around the slippage of the cushion block outside; This extraction fan is located in this second room, and can drive it makes exhausting to caulking groove action by a power spare; This collection box is located on this caulking groove, and the extraction fan in this second room can suck the chalk dust of first room and collect in the box.

2. blackboard eraser as claimed in claim 1 is characterized in that, this first room is provided with a through hole and communicates with this caulking groove, and this collection box is provided with a perforation and is communicated with this through hole.

3. blackboard eraser as claimed in claim 1 is characterized in that, this second room is provided with an air port and communicates with this caulking groove.

4. blackboard eraser as claimed in claim 1 is characterized in that the dual-side of this caulking groove is provided with two slide rails, and the both sides of this collection box also are provided with two grooves and can be embedded on this two slide rail for sliding, are incorporated on this shell body should collect box.

5. blackboard eraser as claimed in claim 1 is characterized in that, these a plurality of rollers are hubbed at it in cushion block with a bolt respectively, so that it can rotate in cushion block.

6. blackboard eraser as claimed in claim 1 is characterized in that, this second room top is provided with a lid, and this lid is provided with the switch of this power spare of startup.

7. blackboard eraser as claimed in claim 1 is characterized in that this power spare can be motor, provides motor power and can be provided with a plurality of batteries in this second room.

8. blackboard eraser as claimed in claim 1 is characterized in that, this collection box is located on this caulking groove in separable mode.

9. blackboard eraser as claimed in claim 1, it is characterized in that, be provided with a breathable filter bag in this collection box for its inner area being divided into two partly, some wherein communicates with this first room, another partly then communicates with this second room, and the chalk dust so that the extraction fan in this second room can see through this filter bag with first room sucks in the collection box.

10. blackboard eraser as claimed in claim 7 is characterized in that, this shell body one side is provided with guide card, and this guide card sees through a charging circuit and is connected to this battery, can utilize a cradle that it is charged for it.

11. blackboard eraser as claimed in claim 1 is characterized in that, is arranged with a pad on the opening ora terminalis of this first room, this pad is made by a soft material.

12. blackboard eraser as claimed in claim 7 is characterized in that, described battery can be non-rechargeable, after battery provides electricity usage to finish, loam cake can be taken off, and changes the battery in second room.

13. blackboard eraser as claimed in claim 7 is characterized in that, described shell body can be had an electric wire, and electric wire link to each other with battery after can seeing through circuit board, but makes the also plug-in use of described blackboard eraser.