CN202357742U

CN202357742U - Blackboard eraser with dust absorption function

Info

Publication number: CN202357742U
Application number: CN2011205138289U
Authority: CN
Inventors: 王清伟; 刘扬帆; 章学璋
Original assignee: Shanghai No 1 High School
Current assignee: Shanghai No 1 High School
Priority date: 2011-12-12
Filing date: 2011-12-12
Publication date: 2012-08-01
Anticipated expiration: 2021-12-12

Abstract

The utility discloses a blackboard eraser with a dust absorption function. The blackboard eraser comprises a brush body, a first suction pump and a second suction pump, wherein the first suction pump is arranged on the brush body; the second suction pump is suitable for a dust collection box for containing liquid and is used for pumping out clean air bubbles; the first suction pump is communicated with the dust collection box via a dust adsorption pipe; the second suction pump is communicated with the dust collection box via a suction pipe; and at least one filter screen is arranged in the dust collection box. The filter screen disclosed by the utility model can be used for filtering the air bubbles wrapping dust and ash, which are generated in the water body, into the clean air bubbles, and can be used for preventing the phenomenon that big-particle dust, rubbish and the like enter a water-air separation room to block the mouth of the suction pipe, and therefore the suction working efficiency is improved.

Description

The blackboard eraser of band dust-absorbing function

Technical field

The utility model relates to a kind of blackboard eraser, relates to a kind of blackboard eraser that has the band dust-absorbing function of dust exhaust apparatus specifically, belongs to the daily teaching apparatus.

Background technology

In most schools now, more teacher teaches and is fixed against blackboard, shows course content to the student intuitively; When blackboard is write completely by chalk dust after, can only chalk be wiped with blackboard eraser, when being fixed on the blackboard because of traditional blackboard eraser, the dust part under wiping can be adsorbed on the wiping board of blackboard eraser; Another part dust just can fly upward everywhere; Cause air pollution of classroom and descend slowly and lightly on one's body teacher, the student, thus make dirty clothing be exposed to outer hair, skin, cover mouth and nose though the teachers and students that erase the board also use hand; But still can not avoid sucking dust, extremely unfavorable to teachers and students' health.

For this reason; Existing a lot of blackboard erasers improve; Like Granted publication number is the patent of invention of CN 102241224A; This case is the absorbing cavity that suction port is set on the rub body of blackboard eraser and is connected with said suction port, and an aspiration pump is connected with absorbing cavity through flexible pipe, realizes the pick-up performance of blackboard eraser through aspiration pump and absorbing cavity; And for example Granted publication number is the utility model patent of CN 201703144U, and the rub body of this case is installed on the box body front, is provided with vacuum chamber and blower fan in the box body, and this case sucks dust in the vacuum chamber by blower fan and blower fan motor.Only the absorbing cavity of such blackboard eraser (vacuum chamber) is difficult for cleaning after holding dust, if under the not good enough situation of sealing, the dust in the absorbing cavity (vacuum chamber) still pollutes the environment, and does not reach perfect dust removing effects.

Granted publication number discloses a kind of blackboard eraser with dust-absorbing function in the CN 201736677U utility model specification; As shown in Figure 1, this wiping board 1 is the sandwich of layers structure, and wiping board 1 is provided with the air suction opening 2 that communicates with said hollow interlayer; The flexible pipe 3 that is fixed on the wiping board 1 is communicated with sandwich of layers with dust catcher 4; Though this case is inserted the outlet of dust device 4 in the pond 5 in order to remove dust, the outlet of dust device is dissolved in because of dust in the process of water body can produce a large amount of bubbles in water body, and bubble can wrap up a part of dust usually; And this part dust has influenced efficiency of dust collection because the existence of bubble is difficult to be dissolved in water.

The utility model content

For overcoming the defective that exists in the prior art; The utility model provides a kind of blackboard eraser of the novel band dust-absorbing function that has dust exhaust apparatus; This dust exhaust apparatus comprises a plurality of screen packs of being located in the disposal box; Thereby make the blackboard eraser of band dust-absorbing function of the utility model can effectively absorb wave dust and the dust that produces when erasing the board, prevent the harm of dust, can effectively guarantee the smooth and easy without hindrance of dust suction work again environment and peripheral crowd's clothing.

For realizing above-mentioned technique effect; The utility model discloses a kind of blackboard eraser with dust-absorbing function; The blackboard eraser of this band dust-absorbing function comprises brush body, be located at first air pump on the brush body, be suitable for the disposal box of receiving fluids and be used to extract out second air pump of pure air bubble, and said brush body is provided with air suction opening, and said first air pump is connected with this disposal box through sweep-up pipe; Said second air pump is connected with this disposal box through exhaust column, is provided with at least one screen pack in this disposal box.

Preferably, said screen pack is a plurality of, and these a plurality of screen packs are arranged in the mode that keeps at a certain distance away between the suction inlet of overflow lip and exhaust column of sweep-up pipe, and the mesh of these a plurality of screen packs dwindles from the suction inlet direction of overflow lip to the exhaust column of sweep-up pipe gradually.

Preferably, be formed with air suction opening on the said brush body.

The utility model adopts screen pack that disposal box is divided into a plurality of dust separation chamber; Also be provided with between this dust separation chamber and second air pump and be used to carry out the aqueous vapor separation chamber that aqueous vapor is separated; Thereby the screen pack of the utility model not only is filtered into clean air bubble with the bubble of parcel dust that produces in the water body and dust; Can also prevent to stop up the exhausting mouth of pipe, thereby improved the efficient of exhausting work because of bulky grain dust, rubbish etc. get into the aqueous vapor separation chamber.

Description of drawings

Fig. 1 is the Granted publication number structural representation for the blackboard eraser of the band dust-absorbing function of CN 201736677U utility model;

Fig. 2 is the structural representation of blackboard eraser of the band dust-absorbing function of the utility model.

The specific embodiment

For the benefit of to the understanding of the wiping blackboard structure of the band dust-absorbing function of the utility model, explain below in conjunction with a preferred embodiment of the utility model of accompanying drawing 2.

As shown in Figure 2; The blackboard eraser 10 of the band dust-absorbing function of the utility model comprises a brush body 11, be arranged in brush body 11 rear ends (right-hand member of diagram) first air pump 12, be suitable for the disposal box 13 of receiving fluids and be used to extract out second air pump 14 of pure air bubble; Said first air pump 12 is connected with this disposal box 13 through a sweep-up pipe 15; Said second air pump 14 is connected with this disposal box 13 through an exhaust column 16; Be provided with three screen packs 130 in this disposal box 13; Said screen pack 130 is a plurality of, these a plurality of screen packs 130 with the mode that keeps at a certain distance away be arranged in sweep-up pipe 15 overflow 150 and the suction 160 of exhaust column 16 between, the mesh of these a plurality of screen packs 130 150 dwindles to suction 160 directions of exhaust column 16 from overflowing of sweep-up pipe 15 gradually.

The brush body 11 of the utility model is provided with air suction opening 111, is characterized in the elimination of blackboard writing and the absorption of chalk dust are combined as a whole, and has alleviated teachers and students' labor load, eliminates the pollution of dust to teaching environment.The blackboard eraser 10 of the band dust-absorbing function of the utility model also can be made into brush and sac like, is used for article such as clothes are carried out dust suction.

The utility model utilizes first air pump 12 can strengthen the dust suction dynamics, can not only adsorb the dust of being wiped by brush body 11, and the dust and the dust of brush body 11 peripheries also played good suction-operated.After energized; First air pump 12 drives said brush body 11 and rotates, and the air suction opening 111 of brush body 11 tangentially sucks dust and dust, thereby writing is wiped; The dust that is produced first air pump 12 produced under the wind action of after-blow; Move to disposal box 13, in disposal box 13, be filtered net 130 again and filter out, discharge clean air bubble 132 by exhaust column 16 by second air pump 14.

During use, in disposal box 13, inject a certain amount of water, dust that tangentially sucks in the air suction opening 111 of brush body 11 and dust get into 20 zones, dust separation chamber of disposal boxes 13 along sweep-up pipe 15 under the drive of first air pump 12; Carry the water body of dust and dust and in dust separation chamber 20, doing rotation at a high speed; Thereby dust and dust fully are dissolved in the water body, and in this process, current are under action of centrifugal force; Rotation at a high speed from bottom to top in dust separation chamber 20; Part dust and dust break away from current and are precipitated to disposal box 13 bottoms, and another part rotates to dust separation chamber 20 upper areas with the current that rise, and form the air bubble 131 of parcel dust and dust; 130 big air bubbles that will wrap up dust and dust one by one of three screen packs are broken one by one, form the little air bubble of parcel dust and dust, until forming clean air bubble 132; Elimination the pure air bubble 132 of dust and dust then got into 30 zones, aqueous vapor separation chamber, last under the effect of second air pump 14, discharge clean air bubble 132 from exhaust column 16.

The whole device volume of the utility model is little, light, simple in structure, and little power consumption is of many uses, is easy to process and promote the use of, and has preferable economic worth and practical value, and the speed of clear dirt is fast, and efficient is high, effectively safeguards the healthy of Faculty and Students.In addition, the utility model utilizes air-flow that the dust that produces is sucked in the said disposal box 13, and in disposal box 13, forms clean air bubble 132 through screen pack 130; So the utility model is reasonable in design, be skillfully constructed, guarantee environmental sanitation in the classroom; For cleaning person reduces labour intensity; Make simply, with low cost, be with a wide range of applications.

Through initial estimate; Use the blackboard eraser 10 of the band dust-absorbing function of the utility model, dust collection efficiency is stabilized in about 98%, thereby has reduced dust pollution widely; These dust are present in the disposal box 13 simultaneously; Be prone to be recovered the raw material that utilizes chalk, can continue the creation of value, bring good beneficial effect.

Claims

1. blackboard eraser with dust-absorbing function; It comprises brush body, is located at first air pump on the brush body, second air pump that is suitable for the disposal box of receiving fluids and is used to extract out the pure air bubble; Said first air pump is connected with this disposal box through sweep-up pipe; Said second air pump is connected with this disposal box through exhaust column, it is characterized in that: be provided with at least one screen pack in the said disposal box.

2. the blackboard eraser of band dust-absorbing function according to claim 1; It is characterized in that: said screen pack is a plurality of; These a plurality of screen packs are arranged in the mode that keeps at a certain distance away between the suction inlet of overflow lip and exhaust column of sweep-up pipe, and the mesh of these a plurality of screen packs dwindles from the suction inlet direction of overflow lip to the exhaust column of sweep-up pipe gradually.

3. the blackboard eraser of band dust-absorbing function according to claim 1 is characterized in that: be formed with air suction opening on the said brush body.