CN215204238U - Non-electric automatic circulating dust-removing and dust-depositing environment-friendly blackboard eraser - Google Patents

Abstract

The utility model discloses an electroless automatic circulating dust-removing and dust-depositing environment-friendly blackboard eraser, which comprises an outer shell and an inner shell, the outer shell is positioned at the rear side of the inner shell, the inner shell is provided with a first cavity and a second cavity, the first cavity is positioned above the second cavity, the opening of the first cavity is far away from the shell, the opening of the second cavity is close to the shell, the first cavity is internally provided with an ash wiping device, an ash brushing device and a stopping device for stopping the rotation of the ash wiping device, the dust wiping device is positioned at the front part of the first cavity, the dust wiping device and the stopping device are positioned at the rear part of the first cavity, part of the dust wiping device extends out of the opening of the first cavity to wipe the blackboard, an ash deposition chamber is formed between the shell and the second cavity and is communicated with the first cavity. The utility model discloses a setting is wiped grey device, is brushed grey device, detent and deposition room, realizes the limit and wipes the effect that the blackboard edge removed dust.

Description

Non-electric automatic circulating dust-removing and dust-depositing environment-friendly blackboard eraser

Technical Field

The utility model relates to a teaching article, specific can electroless automatic cycle dust removal deposition environmental protection blackboard eraser that says so.

Background

The chalk is low in price and can well express the teaching blackboard writing of a teacher, so that the chalk is widely used and becomes one of indispensable teaching articles for the teacher to teach. Meanwhile, the blackboard eraser for chalk writing is an indispensable teaching article in daily classroom teaching work. At present, most of blackboard erasers used in schools are still traditional simple blackboard erasers (felt cloth, flannel, sponge and the like are wrapped by a metal shell or a plastic shell), the dust wiping effect is good, and as dust cannot be automatically and circularly removed and deposited, more chalk dust is deposited on the dust wiping surface in the using process, and a thick chalk dust layer is formed. A careful teacher has to frequently find the blackboard eraser for objects to scrape or beat ash and remove the accumulated ash on the ash erasing surface; the careless teacher chooses to continue using the blackboard eraser, the blackboard eraser with the very serious dust accumulation on the dust accumulation surface is used for continuously erasing the blackboard, the blackboard eraser is not clean, although the written content is erased, a blank and lost piece is left in the erasing area, and then the blackboard eraser continues writing in the erasing area, so that the written content of the teacher is not clear to the students, and the learning and eyesight of the students are influenced. Although there are many new blackboard erasers designed to remove dust electrically and suck dust, they are generally bulky, heavy, noisy, and require frequent charging, which results in poor usability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a volume, weight and user mode and traditional blackboard eraser and be very close, and can realize the limit and wipe the limit and remove dust, wipe more the blackboard eraser of clean electroless automatic cycle dusting and deposition under no electric drive.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an electroless automatic cycle dust removal deposition environmental protection blackboard eraser, includes shell and inner shell, the shell is located the rear side of inner shell, the inner shell is provided with first cavity and second cavity, first cavity is located the top of second cavity, the opening of first cavity is kept away from the shell, the opening of second cavity is close to the shell, accomodate in the first cavity and wiped grey device, brush grey device and be used for preventing wipe grey device pivoted detent, it is located to wipe grey device the front portion of first cavity, brush grey device with detent is located the rear portion of first cavity, part it stretches out to wipe grey device the opening of first cavity is used for wiping the blackboard, the shell with form the deposition room between the second cavity, the deposition room with first cavity intercommunication. When the blackboard is erased, the part of the dust erasing device extending out of the opening of the first cavity is used for erasing the blackboard, the part of the dust erasing device stained with chalk dust rotates to be in contact with the dust brushing device on the rear side of the dust erasing device, the chalk dust is brushed away by the dust brushing device, the chalk dust falls into the dust deposition chamber, the stopping device is used for organizing the dust erasing device to roll quickly, and the integral structure realizes the effect of erasing dust on the edges of the blackboard.

In the above technical scheme, preferably, the inner shell includes a top plate, a base plate, a bottom plate, an upper left side plate, an upper right side plate, a lower left side plate, a lower right side plate, an upper back plate and a lower back plate, the top plate, the base plate, the upper left side plate, the upper right side plate and the upper back plate form the first cavity, and the base plate, the bottom plate, the lower left side plate, the lower right side plate and the lower back plate form the second cavity. The inner shell has above-mentioned unique structural design, and the opening of first cavity and second cavity sets up back to the back, and the first cavity that is located the upper portion is used for accomodating and wipes grey device, brush grey device and detent to realize wiping grey brush ash, the second cavity that is located the lower part is used for forming the deposition chamber with the shell and is used for falling grey deposition.

In the above technical solution, it is further preferred that the dust wiping device includes a plurality of rollers longitudinally disposed in the first cavity and a dust wiping belt sleeved on the plurality of rollers, the rollers include a rotating shaft and a rotating drum, the rotating shaft is disposed between the top plate and the base plate, the rotating drum is sleeved on the rotating shaft, the dust wiping belt has a first straight section for wiping a blackboard and a second straight section for contacting with the dust wiping device, the first straight section extends out of the opening of the first cavity, and the second straight section is far away from the opening of the first cavity. The first straight section of the dust wiping belt wipes the blackboard, the first straight section rotates to the position of the second straight section under the driving of the roller, the second straight section rotates to the position of the first straight section, the part of the dust wiping belt which wipes the blackboard and is stained with chalk dust is contacted with the dust wiping device, and the chalk dust is brushed by the dust wiping device and falls to the dust collecting chamber.

In the above technical solution, it is further preferable that the dust wiping belt is an annular closed belt, and the dust wiping belt includes a flannelette surface layer and a leather lining layer. The dust wiping belt has the advantages that the surface layer of the flannelette of the dust wiping belt has a better wiping effect, the flannelette is soft and does not damage the blackboard, and the inner layer of the leather has certain hardness and plays a certain supporting role in supporting and running the dust wiping belt on the roller.

In the foregoing technical solution, it is still further preferred that the ash brushing device includes at least one longitudinally disposed brush, the brush is disposed between the top plate and the base plate, the brush is located at the rear side of the ash wiping device, and bristles of the brush are in contact with the second straight section. The brush is longitudinally arranged between the top plate and the base plate, the dust wiping belt is in contact with the brush in the operation process, so that the brush longitudinally brushes the chalk dust on the dust wiping belt without dead angles, and the dust wiping effect is obvious.

In the above technical solution, and further preferably, the stopper device includes at least one pair of rubber blocks disposed on the upper back plate, the pair of rubber blocks are respectively located on the left and right sides of the brush, and the stopper device is in contact with the second straight section. When the ash scraping belt rotates to contact with the rubber block, the rubber block applies equal pressure and friction force to the ash scraping belt according to the pressure and friction force transmitted by the ash scraping belt, and the ash scraping belt is prevented from rolling rapidly.

In the foregoing technical solution, it is still further preferred that a circle of ash blocking strips are arranged on the periphery of the ash wiping belt, each ash blocking strip includes first to fourth ash blocking strips, and the first to fourth ash blocking strips are respectively arranged on the top plate, the left upper side plate, the base plate and the right upper side plate. The dust blocking strip enables the blackboard eraser to form a sealed dust cover when being contacted with the blackboard surface, solves the problem that chalk dust generated when the blackboard eraser is used for erasing a blackboard in the vertical and horizontal movement mode flies around, well avoids teachers and students from passively sucking chalk dust, and is beneficial to protecting the health of the teachers and students.

In the above technical solution, preferably, the material of the dust blocking strip is sponge. The sponge has certain dust absorption and sound absorption effects, and can not generate noise while playing a dustproof sealing effect.

In the above technical solution, it is further preferable that the substrate is provided with two dust falling holes respectively located below the pair of rubber blocks. The chalk dust brushed off by the brush falls into the dust chamber from the two dust falling holes.

In the above technical solution, it is still further preferable that the housing is provided with an ash discharge hole, and the ash discharge hole is located at a lower portion of the ash deposition chamber.

The utility model discloses an electroless automatic cycle dusting deposition environmental protection blackboard eraser has following beneficial effect:

1. the utility model discloses a blackboard eraser can realize the limit and wipe blackboard edge ash removal when using, has solved the deposition and the ash removal problem of blackboard eraser ash removal face automatically. Both reduced teacher's ash removal work load, can ensure again that the blackboard is erased cleaner, write the effect once more and present more clearly, be favorable to student's study and eyesight.

2. The utility model discloses a blackboard eraser need not electric power and supports, uses in electroless environment completely, has both simplified the project organization, has reduced the volume and the weight of blackboard eraser, presses close to teacher's use habit again, has still avoided electric power design's potential safety hazard.

3. The utility model discloses a blackboard eraser is equipped with round ash blocking strip, forms more sealed dust cover when contacting with the blackboard face, has solved the blackboard eraser and has removed about from top to bottom and fly upward all around of the chalk dust that produces when wiping the blackboard, has avoided teacher and student to inhale the chalk dust passively betterly, is favorable to protecting teacher and student's healthy.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a left side view of the inner and outer shells of the present invention.

Fig. 3 is a sectional view taken along a-a of fig. 1.

In the figure: the cleaning agent comprises an outer shell-1, an inner shell-2, a top plate-201, a base plate-202, a left upper side plate-203, a left lower side plate-204, an upper back plate-205, a lower back plate-206, a bottom plate-207, a first cavity-21, a second cavity-22, an ash chamber-30, a roller-410, an ash wiping belt-420, a flannelette surface layer-421, a leather inner layer-422, a brush-500, a rubber block-600, a first ash blocking strip-701, a second ash blocking strip-702, a third ash blocking strip-703 and a fourth ash blocking strip-704.

Detailed Description

An environment-friendly blackboard eraser capable of removing dust and depositing dust without electricity and automatically circulating is disclosed, and referring to fig. 1-3, the environment-friendly blackboard eraser comprises an outer shell 1 and an inner shell 2, wherein the outer shell 1 is located on the rear side of the inner shell 2, the inner shell 2 comprises a top plate 201, a base plate 202, a bottom plate 207, an upper left side plate 203, an upper right side plate, a lower left side plate 204, a lower right side plate, an upper back plate 205 and a lower back plate 206, the top plate 201, the base plate 202, the upper left side plate 203, the upper right side plate and the upper back plate 205 form a first cavity 21, and the base plate 202, the bottom plate 207, the lower left side plate 204, the lower right side plate and the lower back plate 206 form a second cavity 22. The first cavity 21 is located above the second cavity 22, the opening of the first cavity 21 is far away from the shell 1, the opening of the second cavity 22 is close to the shell 1, the first cavity 21 is internally provided with an ash wiping device, an ash brushing device and a stopping device for stopping the rotation of the ash wiping device, the ash wiping device is located at the front part of the first cavity 21, and the ash brushing device and the stopping device are located at the rear part of the first cavity 21. The outer shell 1 is sleeved on the rear side of the inner shell 2, the outer shell 1 and the inner shell 2 are connected through a connecting piece so that the connection between the outer shell 1 and the inner shell 2 is firm and stable, and an ash chamber 30 is formed between the outer shell 1 and the second cavity 22.

The ash wiping device comprises two rollers 410 longitudinally arranged in the first cavity 21 and an ash wiping belt 420 sleeved on the rollers 410, wherein the rollers 410 comprise rotating shafts and rotating drums, the rotating shafts are arranged between the top plate 201 and the base plate 202, and the rotating drums are sleeved on the rotating shafts. The ash wiping belt 420 is provided with a first straight section used for wiping the blackboard and a second straight section used for being in contact with the ash wiping device, the first straight section extends out of the opening of the first cavity 21, the second straight section is far away from the opening of the first cavity 21, the ash wiping belt 420 is an annular closed belt, the ash wiping belt 420 comprises a flannelette surface layer 421 and a leather lining 422, the flannelette surface layer 421 and the leather lining 422 are sewn together, the flannelette surface layer 421 is used for being in contact with the blackboard to wipe the blackboard, and the leather lining 422 is used for being in contact with the roller 410. The flannelette surface layer 421 of the dust wiping belt 420 has better wiping effect, is soft and does not damage a blackboard, and the leather inner layer 422 has certain hardness to play a certain supporting role in supporting and running the dust wiping belt 420 on the roller 410.

The ash brushing device comprises a longitudinally arranged brush 500, the brush 500 is arranged between the top plate 201 and the base plate 202, the brush 500 is positioned at the rear side of the ash wiping belt 420, and the brush 500 is contacted with the second straight section of the ash wiping belt 420. The brush 500 is longitudinally arranged between the top plate 201 and the base plate 202, the dust wiping belt 420 is contacted with the bristles of the brush 500 in the running process, so that the brush 500 longitudinally brushes the chalk dust on the dust wiping belt 420 without dead angles, and the dust wiping effect is obvious.

The stopping device comprises a pair of rubber blocks 600 arranged on the upper back plate 205, the pair of rubber blocks 600 are respectively positioned at the left side and the right side of the brush 500, and the stopping device is contacted with the second straight section of the ash scraping belt 420. When the dust wiping belt 420 rotates to contact the rubber block 600, the rubber block 600 applies equal pressure and friction force to the dust wiping belt 420 according to the pressure and friction force transmitted by the dust wiping belt 420, and the dust wiping belt 420 is prevented from rapidly rolling.

The periphery of the dust wiping belt 420 is provided with a circle of dust blocking strips, the dust blocking strips comprise first to fourth dust blocking strips (701, 702, 703 and 704), and the first to fourth dust blocking strips (701, 702, 703 and 704) are respectively arranged on the side surface of the top plate 201, the left upper side plate 203, the side surface of the base plate 202 and the right upper side plate. The dust blocking strip enables the blackboard eraser to form a sealed dust cover when being in contact with and extruded with the blackboard surface, dust generated during blackboard erasing is sealed in the dust cover, the problem that chalk dust generated during blackboard erasing of the blackboard eraser flies around when the blackboard eraser moves from top to bottom and from left to right is solved, passive chalk dust suction of teachers and students is well avoided, and body health of the teachers and students is protected. In this embodiment, the material of the dust blocking strip is sponge. The sponge has certain dust absorption and sound absorption effects, and can not generate noise while playing a dustproof sealing effect.

The base plate 202 is provided with two dust falling holes respectively located below the pair of rubber blocks 600, the dust chamber 30 is communicated with the first cavity 21 through the two dust falling holes, and chalk dust brushed off by the brush 500 falls into the dust chamber 30 from the two dust falling holes. In addition, the housing 1 is provided with a dust discharging hole which is positioned at the lower part of the dust chamber 30 and is provided with a hole plug, when the chalk dust in the dust chamber 30 is accumulated more, the hole plug on the dust discharging hole is taken down, the chalk dust is emptied, and then the hole plug is arranged on the dust discharging hole.

When the blackboard eraser is erased, the blackboard eraser is longitudinally held, can transversely move left and right and also can longitudinally move up and down, the dust erasing belt 420 generates friction force under the extrusion of the blackboard and the roller 410, and moves towards the direction opposite to the moving direction of the blackboard eraser under the driving of the roller 420 and rotates towards the inside of the inner shell 2; when the ash scraping belt 420 rotates to contact the rubber block 600 of the inner shell 2, the rubber module 600 applies equal pressure and friction force to the ash scraping belt 420 according to the pressure and friction force transmitted by the ash scraping belt 420, and the ash scraping belt 420 is prevented from rolling rapidly; the first straight section of the dust wiping belt 420 stained with the chalk dust rotates to the second straight section position to be in contact with the brush 500, and the chalk dust on the dust wiping belt 420 is brushed away by the brush 500; the falling dust falls into the dust chamber 30 through two dust falling holes below the inner casing 2. An ash discharge hole is arranged below the ash deposition chamber 30, when more chalk dust is accumulated in the ash deposition chamber 30, a hole plug on the ash discharge hole is taken down, the chalk dust is emptied, and then the hole plug is arranged on the ash discharge hole. Therefore, the blackboard eraser moves transversely to erase the blackboard, the dust erasing belt 420 generates friction force under the extrusion of the blackboard and the roller 410, the dust erasing belt 420 rotates towards the inner shell 2 along with the rotation of the roller 410, after the dust erasing belt rolls to the brush 500 below the dust erasing belt 420, the chalk dust on the dust erasing belt 420 is brushed off by the brush 500, and the dust removing and cleaning effect of the dust erasing belt 420 is realized. The blackboard eraser can realize the dust removal of the edge-erasing blackboard edges no matter the blackboard eraser moves up and down and left and right, and is very convenient and practical; meanwhile, the dust blocking strip is contacted and extruded with the blackboard when the blackboard is erased to form a sealed dust cover, and dust generated when the blackboard is erased is sealed in the dust cover, so that the damage and pollution caused by flying dust are greatly reduced.

Claims (10)

1. An electroless automatic circulating dust-removing and dust-depositing environment-friendly blackboard eraser is characterized by comprising an outer shell and an inner shell, the outer shell is positioned at the rear side of the inner shell, the inner shell is provided with a first cavity and a second cavity, the first cavity is positioned above the second cavity, the opening of the first cavity is far away from the shell, the opening of the second cavity is close to the shell, the first cavity is internally provided with an ash wiping device, an ash brushing device and a stopping device for stopping the rotation of the ash wiping device, the dust wiping device is positioned at the front part of the first cavity, the dust wiping device and the stopping device are positioned at the rear part of the first cavity, part of the dust wiping device extends out of the opening of the first cavity to wipe the blackboard, an ash deposition chamber is formed between the shell and the second cavity and is communicated with the first cavity.

2. The environment-friendly blackboard eraser capable of automatically recycling dust and ash as claimed in claim 1, wherein the inner casing comprises a top plate, a base plate, a bottom plate, a left upper side plate, a right upper side plate, a left lower side plate, a right lower side plate, an upper back plate and a lower back plate, the top plate, the base plate, the left upper side plate, the right upper side plate and the upper back plate form the first cavity, and the base plate, the bottom plate, the left lower side plate, the right lower side plate and the lower back plate form the second cavity.

3. The environment-friendly blackboard eraser with the function of electroless automatic circulation for removing dust and depositing ash as claimed in claim 2, wherein the dust-removing device comprises a plurality of rollers longitudinally disposed in the first cavity and a dust-removing belt sleeved on the plurality of rollers, the rollers comprise a rotating shaft and a rotating drum, the rotating shaft is disposed between the top plate and the base plate, the rotating drum is sleeved on the rotating shaft, the dust-removing belt has a first straight section for removing the blackboard and a second straight section for contacting with the dust-removing device, the first straight section extends out of the opening of the first cavity, and the second straight section is far away from the opening of the first cavity.

4. The environment-friendly blackboard eraser with the functions of electroless automatic circulation dust removal and ash deposition as claimed in claim 3, wherein the ash-wiping belt is an annular closed belt, and comprises a flannelette surface layer and a leather lining layer.

5. The environment-friendly blackboard eraser with the function of electroless automatic circulation for removing dust and depositing ash as claimed in claim 4, wherein the dust brushing device comprises at least one longitudinally arranged brush, the brush is arranged between the top plate and the base plate, the brush is located at the rear side of the dust wiping device, and the bristles of the brush are in contact with the second straight section.

6. The environment-friendly blackboard eraser with automatic circulation dust and ash removal function without electricity according to claim 5, wherein the stopping device comprises at least one pair of rubber blocks arranged on the upper back plate, one pair of rubber blocks are respectively arranged on the left side and the right side of the brush, and the stopping device is in contact with the second straight section.

7. The environment-friendly blackboard eraser capable of automatically circulating to remove dust and deposit ash without electricity according to claim 6, wherein a ring of ash blocking strips are arranged on the periphery of the ash wiping belt, the ash blocking strips comprise first to fourth ash blocking strips, and the first to fourth ash blocking strips are respectively arranged on the top plate, the upper left side plate, the base plate and the upper right side plate.

8. The environment-friendly blackboard eraser capable of automatically and circularly removing dust and accumulating ash as claimed in claim 7, wherein the material of the dust-blocking strip is sponge.

9. The environment-friendly blackboard eraser capable of automatically recycling dust and depositing ash without electricity as claimed in claim 8, wherein the base plate is provided with two dust falling holes respectively located below the pair of rubber blocks.

10. The environment-friendly blackboard eraser capable of automatically recycling dust and depositing ash without electricity as claimed in claim 9, wherein the housing is provided with an ash hole, and the ash hole is located at the lower part of the ash chamber.

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