CN203157522U

CN203157522U - Dust collection blackboard eraser

Info

Publication number: CN203157522U
Application number: CN201320168218.9U
Authority: CN
Inventors: 卢京爱
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-07
Filing date: 2013-04-07
Publication date: 2013-08-28
Anticipated expiration: 2023-04-07

Abstract

The utility model discloses a dust collection blackboard eraser and belongs to the technical field of teaching aids. The dust collection blackboard eraser comprises a moving part and a dust sucking part, wherein the moving part comprises a slide block and guide rails, and the dust sucking part comprises a housing; brushing hairs are fixedly connected with the surface, close to the blackboard, of the housing; a first rotating shaft, a second rotating shaft and a third rotating shaft are arranged in the housing; a roller is fixedly connected with the first rotating shaft, and a first gear mechanism is arranged between the first rotating shaft and the second rotating shaft, and a second gear mechanism is arranged between the second rotating shaft and the third rotating mechanism; and a fan is arranged on the third rotating shaft, below which a dust collection part is arranged. According to the utility model, the dust sucking part erases the blackboard-writing under the driving of the moving part, the first gear mechanism and the second gear mechanism rotate under the driving the roller, so as to drive the fan to rotate, and accordingly the erased dust is sucked into the of the dust sucking part through the fan and then collected by a dust collection part; and the dust in the dust collection part can be discarded after a period of time, so that the use is convenient.

Description

Dust absorption blackboard eraser

Technical field

The utility model belongs to the teaching aid technical field, relates in particular to a kind of dust absorption blackboard eraser.

Background technology

At present, class hour in most of middle and primary schools, still adopt chalk to write the mode of writing on the blackboard at blackboard, following class hour, writing on the blackboard is wiped by blackboard eraser.In wiping the process of writing on the blackboard, chalk dust flies upward easily everywhere, often drops on the body of Faculty and Students, or is inhaled in the body, and chalk dust has had a strong impact on the health of Faculty and Students.

Along with the improvement to teaching environment, part school has adopted dust absorption blackboard eraser, but the most existing dust absorption blackboard eraser adopts felt, sponge or flannelette to come dust suction usually, after using a period of time, dust-absorbing blackboard smears and has been stained with chalk dust, not only wipes the writing on the blackboard difficulty this moment, and pick-up performance is also undesirable, therefore need the dust suction parts are changed or disassembly, cleaning, increased the use cost of dust absorption blackboard eraser, make troubles for actual the use.

The utility model content

Technical problem to be solved in the utility model is: provide a kind of dust absorption blackboard eraser, to solve the high and inconvenient technical problem of existing dust absorption blackboard eraser use cost.

For solving the problems of the technologies described above, the technical solution of the utility model is: dust absorption blackboard eraser, comprise moving part and the dust collecting port of fixedlying connected with described moving part, and described moving part comprises slide block, described slide block is slidingly mounted on the guide rail; Described dust collecting port comprises housing, be fixedly connected with bristle and be provided with some air admission holes near blackboard one side on the surface of described housing, the described housing relative with described air admission hole is provided with some ventholes, be rotatablely equipped with first rotating shaft in the described housing, second rotating shaft and the 3rd rotating shaft, be fixedly connected with roller in described first rotating shaft, described roller stretches out described housing and offsets with the plate face of described blackboard, be positioned at described roller upper fixed in described first rotating shaft ratchet mechanism is installed, be provided with first gear mechanism between described first rotating shaft and second rotating shaft, be provided with second gear mechanism between described second rotating shaft and the 3rd rotating shaft, described the 3rd rotating shaft is provided with fan, is provided with dust-collection element in the described housing of described fan bottom.

As a kind of improvement, described first rotating shaft and the described second shaft parallel setting, described first gear mechanism is spur gear pair; Described second rotating shaft and vertical setting of described the 3rd rotating shaft, described second gear mechanism is bevel gear pair.

As further improvement, described guide rail is set to two, and corresponding, described slide block is set to two, and described guide rail is horizontally disposed with and is positioned at the both sides up and down of blackboard.

As further improvement, the surface of described venthole is provided with screen pack, and described screen pack is arranged on the inboard of described housing.

As further improvement, described dust-collection element comprises the slide rail that is arranged in the described housing, is slidingly fitted with disposal box on the described slide rail.

As further improvement, described disposal box is provided with handle.

After having adopted technique scheme, the beneficial effects of the utility model are: because dust absorption blackboard eraser has designed moving part and dust collecting port, drive dust collecting port by moving part and wipe writing on the blackboard and collect chalk dust, avoid influencing the health of Faculty and Students; Described dust collecting port has designed ratchet mechanism, roller, bristle, air admission hole, venthole, first gear mechanism, second gear mechanism, fan and dust-collection element, drive first gear mechanism and the rotation of second gear mechanism by roller, thereby driving fan rotates, ratchet mechanism guarantees the fan one-directional rotation, chalk dust under bristle is wiped is sucked dust collecting port inside by fan by air admission hole, chalk dust is concentrated by dust-collection element, after dust absorption blackboard eraser uses a period of time, only the chalk dust in the dust-collection element need be outwelled and get final product, do not need the dust suction parts are changed or cleaned, easy to use.

Because described guide rail is set to two, corresponding, described slide block is set to two, and described guide rail is horizontally disposed with and is positioned at the both sides up and down of blackboard, is convenient to mobile dust collecting port.

Because the surface of described venthole is provided with screen pack, described screen pack is arranged on the inboard of described housing, has avoided chalk dust to stop up venthole.

Because described dust-collection element comprises the slide rail that is arranged in the described housing, is slidingly fitted with disposal box on the described slide rail, after use a period of time, disposal box is pulled out in housing, outwell chalk dust, easy installation and removal.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the left cutaway view of Fig. 1;

Among the figure: 1, moving part, 11, slide block, 12, guide rail, 2, dust collecting port, 21, housing, 211, air admission hole, 212, venthole, 22, dust-collection element, 221, slide rail, 222, disposal box, 223, handle, 3, blackboard, 4, bristle, 5, screen pack, 6, first rotating shaft, 61, roller, 62, ratchet mechanism, 7, second rotating shaft, the 8, the 3rd rotating shaft, 81, fan, 9, first gear mechanism, 10, second gear mechanism.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Shown in Fig. 1 and Fig. 2 are common, dust absorption blackboard eraser, comprise moving part 1 and the dust collecting port 2 of fixedlying connected with moving part 1, moving part 1 comprises slide block 11, slide block 11 is slidingly mounted on the guide rail 12, guide rail 12 is set to two, accordingly, slide block 11 is set to two, guide rail 12 is horizontally disposed with and is positioned at the both sides up and down of blackboard 3, be convenient to mobile dust collecting port 2, dust collecting port 2 comprises housing 21, is fixedly connected with bristle 4 and is provided with some air admission holes 211 near blackboard 3 one sides on the surface of housing 21, the housing 21 relative with air admission hole 211 is provided with some ventholes 212, the surface of venthole 212 is provided with screen pack 5, and screen pack 5 is arranged on the inboard of housing 21, has avoided chalk dust to stop up venthole 212.

Wherein, be rotatablely equipped with first rotating shaft 6 in the housing 21, second rotating shaft 7 and the 3rd rotating shaft 8, be fixedly connected with roller 61 in first rotating shaft 6, roller 61 stretches out housing 21 and offsets with the plate face of blackboard 3, be positioned at roller 61 upper fixed in first rotating shaft 6 ratchet mechanism 62 is installed, be provided with first gear mechanism 9 between first rotating shaft 6 and second rotating shaft 7, first rotating shaft 6 and second rotating shaft 7 be arranged in parallel, first gear mechanism 9 is spur gear pair, be provided with second gear mechanism 10 between second rotating shaft 7 and the 3rd rotating shaft 8, second rotating shaft 7 and the 3rd rotating shaft 8 vertical settings, second gear mechanism 10 is bevel gear pair, the 3rd rotating shaft 8 is provided with fan 81, is provided with dust-collection element 22 in the housing 21 of fan 81 bottoms.

For the ease of the cleaning chalk dust, dust-collection element 22 comprises the slide rail 221 that is arranged in the housing 21, is slidingly fitted with disposal box 222 on the slide rail 221, and disposal box 222 is provided with handle 223, is convenient to operation; After using a period of time, disposal box 222 is pulled out in housing 21, outwell chalk dust, easy installation and removal.

The dust absorption blackboard eraser that the utility model provides owing to designed moving part 1 and dust collecting port 2, drives dust collecting port 2 by moving part 1 and wipes writing on the blackboard and collect chalk dust, avoids influencing the health of Faculty and Students; Dust collecting port 2 has designed ratchet mechanism 62, roller 61, bristle 4, air admission hole 211, venthole 212, first gear mechanism 9, second gear mechanism 10, fan 81 and dust-collection element 22, drive first gear mechanism 9 and 10 rotations of second gear mechanism by roller 61, thereby driving fan 81 rotates, ratchet mechanism 62 guarantees fan 81 one-directional rotation, chalk dust under bristle 4 is wiped is sucked dust collecting port 2 inside by fan 81 by air admission hole 211, chalk dust is concentrated by dust-collection element 22, after dust absorption blackboard eraser uses a period of time, only the chalk dust of 22 li of dust-collection elements need be outwelled and get final product, do not need the dust suction parts are changed or cleaned, easy to use.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. Dust-absorbing blackboard eraser, it is characterized in that, comprises moving part and the dust-absorbing part that is fixedly connected with described moving part, and described moving part comprises slide block, and described slide block is slidably installed on the guide rail; Described dust-absorbing part It includes a housing, the surface of the housing is fixedly connected with bristles on the side close to the blackboard and is provided with a number of air inlet holes, and the housing opposite to the air inlet holes is provided with a number of air outlet holes, inside the housing A first rotating shaft, a second rotating shaft and a third rotating shaft are installed in rotation, and a roller is fixedly connected to the first rotating shaft. A ratchet mechanism is fixedly installed above the roller, a first gear mechanism is arranged between the first rotating shaft and the second rotating shaft, and a second gear is arranged between the second rotating shaft and the third rotating shaft mechanism, a fan is arranged on the third rotating shaft, and a dust collecting component is arranged in the housing at the lower part of the fan.

2. The dust-absorbing blackboard eraser according to claim 1, wherein the first rotating shaft and the second rotating shaft are arranged in parallel, the first gear mechanism is a spur gear pair; the second rotating shaft and the second rotating shaft The third rotating shaft is arranged vertically, and the second gear mechanism is a bevel gear pair.

3. The dust-absorbing blackboard eraser according to claim 1, wherein there are two guide rails, correspondingly, two sliders, and the guide rails are arranged horizontally and located on the upper and lower sides of the blackboard .

4. The dust-absorbing blackboard eraser according to claim 2 or 3, characterized in that a filter is provided on the surface of the air outlet, and the filter is arranged inside the housing.

5 . The dust-absorbing blackboard eraser according to claim 4 , wherein the dust collecting component comprises a slide rail disposed in the housing, and a dust collection box is slidably mounted on the slide rail. 6 .

6. The dust-absorbing blackboard eraser according to claim 5, wherein a handle is provided on the dust collecting box.