CN112536250B

CN112536250B - Automatic blackboard scrubbing device

Info

Publication number: CN112536250B
Application number: CN202011269610.3A
Authority: CN
Inventors: 李俊
Original assignee: Jiangxi Hongda Education Technology Development Co ltd
Current assignee: Jiangxi Hongda Education Technology Development Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2022-03-22
Anticipated expiration: 2040-11-13
Also published as: CN112536250A

Abstract

The invention provides an automatic blackboard scrubbing device, belonging to the field of teaching aids. The guide rail device is arranged on the upper side and the lower side of the cleaning part, the cleaning part is movably arranged on the guide rail device, the controller is used for controlling the cleaning part to move, then the cleaning part is controlled to clean the blackboard, when the blackboard is required to be cleaned, the controller is only needed to control the cleaning part to work, and therefore the problem that chalk dust is sucked into the inside of a human body when the blackboard is manually cleaned is avoided. Therefore, the blackboard cleaning device can efficiently and quickly complete blackboard cleaning work and can prevent chalk dust from being sucked into a body when the blackboard is cleaned.

Description

Automatic blackboard scrubbing device

Technical Field

The invention relates to the field of teaching aids, in particular to an automatic blackboard scrubbing device.

Background

The blackboard eraser is one of the teaching aids with the highest use frequency in the teaching process, but because the blackboard eraser is not cleaned timely or thoroughly enough, the blackboard eraser can accumulate too much chalk dust, so that a teacher can erase the blackboard more and more unclean, the blackboard erasing consumes a large amount of time, and the teaching efficiency is reduced. When the blackboard is erased manually, a lot of chalk dust is generated in the erasing process, the chalk dust floats in the air and is easily sucked into the body by teachers and students who are doing blackboard erasing work, and the chalk dust is sucked into the body, so that the trachea and the lung are easily damaged, and respiratory diseases are caused.

Disclosure of Invention

In order to solve the problems existing in the prior art that the blackboard is cleaned manually, the invention provides the automatic blackboard cleaning device which can automatically clean the blackboard and can efficiently and quickly clean the blackboard by manually cleaning the blackboard and prevent chalk dust from being sucked into the blackboard when the blackboard is cleaned.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides an automatic blackboard scrubbing device, which comprises:

the guide rail device comprises an upper guide rail arranged above the blackboard and a lower guide rail arranged below the blackboard, the upper guide rail and the lower guide rail are parallel to each other, the guide rail device is sequentially provided with a starting section, a cleaning section and an ash removal section, and the blackboard is positioned in the cleaning section;

the scrubbing part is in sliding fit with the guide rail device and can automatically slide on the guide rail device, the scrubbing part automatically cleans the blackboard during operation, the scrubbing part is positioned on the initial section in the initial state, and when the scrubbing part performs scrubbing operation, the scrubbing part sequentially operates to the cleaning section and the ash removal section to complete the scrubbing operation and then returns to the initial section;

and the controller is used for controlling the scrubbing part to scrub the blackboard.

Preferably, the scrubbing section comprises:

a frame slidably fitted on the rail arrangement;

the dry wiping part is arranged on the frame and is used for wiping and cleaning the blackboard by adopting a dry method;

the wet washing part is arranged on the frame and is used for wiping and cleaning the blackboard in a wet water washing mode;

the power part is arranged on the frame and used for driving the frame to move on the guide rail device, and the power part is electrically connected with the controller;

when the blackboard eraser is used for erasing, the dry erasing part and the wet cleaning part sequentially erase the blackboard.

Preferably, the scrubbing part further comprises two sets of reciprocating drive devices, and the reciprocating drive devices are arranged on the frame; a set of reciprocating driving device acts on the dry wiping part and is used for controlling the dry wiping part to reciprocate towards the direction vertical to the blackboard surface; and the reciprocating driving device acts on the wet cleaning part and is used for controlling the distance between the wet cleaning part and the blackboard.

Preferably, the reciprocating drive means comprises:

the reciprocating frame is in sliding fit with the frame, and when the blackboard eraser is used for erasing, the parts of the erasing part, which are contacted with the blackboard, are arranged on the reciprocating frame;

the end cover of the air cylinder is fixed on the frame, and the end part of the piston rod of the air cylinder is arranged on the reciprocating frame and used for pushing the reciprocating frame to do reciprocating motion.

Preferably, the front end and the rear end of the bottom of the frame along the scrubbing working direction are respectively provided with a collecting groove for collecting chalk dust falling off in the process of scrubbing the blackboard by the dry scrubbing part and a cleaning liquid flowing down from the wet scrubbing part.

Preferably, the dry wiping part includes:

the first dry wiping strip is arranged on the frame and is used for preliminarily wiping the blackboard;

the second dry wiping strip is arranged on the frame and is used for further wiping the blackboard;

the dust collection end of the dust collection device is arranged at the front end of the running direction of the first dry wiping strip when the first dry wiping strip wipes the blackboard and at the front end of the running direction of the second dry wiping strip wipes the blackboard, and is used for removing chalk dust wiped by the first dry wiping strip and the second dry wiping strip and preventing the chalk dust from polluting the surrounding environment;

and the purifying device is arranged at the other end of the dust suction device and is used for removing the chalk dust sucked by the dust suction device.

Preferably, the purification apparatus comprises:

the dust collector comprises a purification water tank, a dust collector and a dust collector, wherein water washing liquid is arranged in the purification water tank, the dust collector outputs gas containing chalk dust and is input into the water washing liquid through a pipeline, and the top of the purification water tank is provided with an air outlet;

and the filter layer is arranged at the top of the purification water tank and is used for filtering the gas to be discharged out of the purification water tank.

Preferably, the wet scrubbing section comprises:

the two ends of the wet washing roller are arranged on the reciprocating frame in a bearing connection mode and used for scrubbing the blackboard, and the surface of the wet washing roller is made of a flexible water absorbing material;

the wet washing motor is arranged on the reciprocating frame, the power output end of the wet washing motor is matched with the wet washing roller in a gear meshing mode, and the wet washing motor is used for driving the wet washing roller to rotate;

the cleaning strip is arranged on the frame and used on the wet washing roller, a water channel is arranged in the cleaning strip, one end of the water channel is connected with a water pipe, and the cleaning strip is used for providing water required by the wet washing roller during scrubbing and cleaning the wet washing roller after the scrubbing work is finished;

the drying strip is arranged on the reciprocating frame and used for drying the blackboard scrubbed by the wet scrubbing roller;

and the input end of the water circulation treatment device is arranged at the lower end of the frame and used for purifying sewage flowing down from the wet washing roller and conveying the purified water to the cleaning strip for internal recycle.

Preferably, the drying bar comprises:

a resistance wire heating tube is arranged inside the heating drying rod, and an insulating coating is arranged on the outer surface of the heating drying rod;

the flexible water absorbing material layer is sleeved on the surface of the heating drying rod and used for absorbing water on the blackboard;

the heating drying rod is used for drying the flexible water absorbing material layer absorbing the water.

Preferably, the water circulation treatment device comprises:

the water treatment tank is provided with a baffle in the middle, and the upper end of the baffle is provided with a through hole;

an input pump for pumping the sewage to be treated from the wet washing part through a pipeline and conveying the sewage into the water treatment tank;

and the output pump is used for pumping the treated water out of the water treatment tank and conveying the treated water into the cleaning strip.

The invention has the beneficial effects that:

the invention provides an automatic blackboard scrubbing device which comprises a guide rail device, a scrubbing part and a controller. The guide rail device is arranged on the upper side and the lower side of the cleaning part, the cleaning part is movably arranged on the guide rail device, the controller is used for controlling the cleaning part to move, then the cleaning part is controlled to clean the blackboard, when the blackboard is required to be cleaned, the controller is only needed to control the cleaning part to work, and therefore the problem that chalk dust is sucked into the inside of a human body when the blackboard is manually cleaned is avoided. Therefore, the blackboard cleaning device can efficiently and quickly complete blackboard cleaning work and can prevent chalk dust from being sucked into a body when the blackboard is cleaned.

Through cleaning the portion and set up dry portion of wiping and wet portion of washing in the portion to dry the portion setting and clean the front end of action, make clean the portion and can adopt dry portion of wiping to carry out preliminary erasure with a large amount of chalk characters on the blackboard earlier, then do further to clean through the blackboard that cleans the portion through the wet portion that contains moisture, make the blackboard cleaner, improve the effect of cleaning the blackboard.

Through setting up reciprocating drive device, make dry portion of wiping and wet portion of washing all can the automatically regulated and the interval between the blackboard face, and then can be through adjusting the distance between wet portion of washing and the blackboard, make wet portion of washing can not all clean the blackboard at every turn (wet portion of washing cleans the back blackboard surface and has moisture, influence the teaching process easily), can only adopt dry portion of wiping to clean the blackboard at the in-process of lessoning, make the blackboard eraser can use immediately, then adopt wet portion of washing to carry out the degree of depth cleanness to the blackboard after lessoning, both can clean the blackboard, can avoid again that there is moisture on the blackboard surface and influence the teaching process. And the reciprocating driving device can enable the dry wiping part to repeatedly collide with the ash cleaning section of the guide rail from the wall surface, so that chalk dust attached to the dry wiping part is removed, and the wiping effect of the dry wiping part is kept.

The first dry wiping strip, the second dry wiping strip and the dust collection device are arranged on the dry wiping part; when the dry wiping part wipes the blackboard, the blackboard is wiped by the first dry wiping strip and the second dry wiping strip successively, namely the blackboard is wiped twice, so that wiping efficiency and effect are improved, and dust suction devices are arranged at the front ends of the first dry wiping strip and the second dry wiping strip, so that chalk dust generated in the wiping process is absorbed and removed, and the chalk dust is prevented from floating in the air and being sucked by a human body.

Through set up the wet roller that washes in the portion of washing, the cleaning strip, the motor is washed to the wet, the drying strip, hydrologic cycle processing apparatus, make the wet roller that washes accomplish after the clean action to the blackboard, rotate through the wet roller that washes of motor drive that washes of washing, the cleaning strip adds water and extrudees the wet roller of washing to the wet roller of washing simultaneously, make the wet roller that washes under the squeezing action of washing and cleaning strip of water, wash the chalk dust that self glues away, reach the purpose of automatically cleaning, and then keep the clean effect of wet roller of washing. And set up the dry strip behind the wet scrubbing roller and wipe dry the blackboard for the blackboard after the wet scrubbing roller washs can carry out rapid draing through the dry strip, avoids influencing the teaching process after the wet scrubbing portion cleans the blackboard (avoids appearing the blackboard and can't use for a long time). And a water circulation treatment device is arranged below the wet washing roller, and sewage flowing down from the wet washing roller is recycled through the water circulation treatment device, so that water sources can be saved, and pollution to classroom environment caused by the sewage flowing down from the wet washing roller can be avoided.

Through set up the heating drying stick in drying strip inside for after drying strip wiped the blackboard dry, can be through the effect of generating heat of heating drying stick, make drying strip rapid draing, and then keep the drying effect of drying strip.

Drawings

FIG. 1 is a schematic view showing the construction of an automatic blackboard eraser;

FIG. 2 is a schematic view of the scrubbing section;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the scrubbing section in cooperation with a guide rail arrangement;

FIG. 5 is a schematic view of the reciprocating drive apparatus;

FIG. 6 is a schematic view of a wet scrubbing roller in cooperation with a cleansing bar;

FIG. 7 is a schematic view of a configuration of a dryer strip;

FIG. 8 is a schematic view of the dust collector and the purification device;

fig. 9 shows a water circulation treatment apparatus.

In the figure:

1. a guide rail device; 2. a scrubbing part; 3. a controller; 4. a blackboard; 11. an upper guide rail; 12. an upper guide rail; 13. a deashing section; 21. a frame; 22. a dry wiping section; 23. a wet washing part; 24. a power section; 25. a reciprocating drive device; 111. a travel switch; 211. collecting tank; 221. a first dry rub strip; 222. a second dry rub strip; 223. a dust collection device; 224. a purification device; 231. washing the roller in a wet mode; 232. washing the motor in a wet mode; 233. a cleaning strip; 234. drying the strips; 235. a water circulation treatment device; 241. a power motor; 242. a rack; 251. a reciprocating frame; 252. a cylinder; 2241. a purified water tank; 2242. a filter layer; 2331. a water channel; 2341. heating the drying rod; 2342. a flexible water absorbent material layer; 2351. a water treatment tank; 2352. an input pump; 2353. and (4) an output pump.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 2, the automatic blackboard erasing device provided in this embodiment includes a rail device, an erasing part, and a controller. The guide rail device comprises an upper guide rail arranged above the blackboard and a lower guide rail arranged below the blackboard, the upper guide rail and the lower guide rail are fixed inside the wall body through screws, the upper guide rail and the lower guide rail are parallel to each other, the guide rail device is sequentially provided with an initial section, a cleaning section and an ash removal section, and the blackboard is located in the cleaning section. Furthermore, two ends of the guide rail are also provided with limit switches, and the limit switches are electrically connected with the scrubbing part and used for limiting the movement range of the scrubbing part.

The scrubbing part is in sliding fit with the guide rail device, the scrubbing part can automatically slide on the guide rail device (the scrubbing part is internally provided with a power part and drives the scrubbing part to slide), the scrubbing part automatically cleans the blackboard during operation, the scrubbing part is positioned on the initial section under the initial state, and during scrubbing operation, the scrubbing part sequentially operates to the cleaning section and the ash cleaning section to complete scrubbing operation and then returns to the initial section. The starting section and the ash cleaning section are arranged at the two ends of the blackboard, so that when the blackboard is not required to be cleaned, the cleaning part is positioned in the starting section, and the influence of the cleaning part on the normal use of the blackboard is avoided. And when the scrubbing part finishes scrubbing the blackboard and moves to the ash cleaning section, the chalk dust on the scrubbing part can be removed in a mode of repeatedly colliding or rubbing with the wall surface of the ash cleaning section (the outer part of the scrubbing part can be provided with a dust cover, and when the scrubbing part is prevented from removing the chalk dust, the chalk dust floats to other positions), so that the scrubbing part can keep a good capacity of cleaning the blackboard. Further, when the scrubbing part is matched with the guide rail device, the rolling device can be adopted to reduce friction between the scrubbing part and the guide rail device (as shown in figure 4), wheels are arranged on the position, matched with the guide rail device, of the scrubbing part, friction between the scrubbing part and the guide rail device is reduced, the abrasion speed of the device can be reduced, the service life of the device is prolonged, noise generated when the scrubbing part cleans the blackboard can be reduced, and the noise generated when the scrubbing part cleans the blackboard is prevented from influencing normal class. The controller is used for controlling the scrubbing part to scrub the blackboard. The controller is electrically connected with the power part of the scrubbing part, and when the blackboard needs to be scrubbed, the power part can be controlled to work only through the controller, so that the scrubbing part can scrub the blackboard. Therefore, the blackboard cleaning can be efficiently and quickly finished, and chalk dust can be prevented from being sucked into the blackboard body when the blackboard is cleaned (the phenomenon that teachers and students suck the chalk dust for a long time to cause respiratory diseases) can be avoided.

Further, the scrubbing part comprises a frame, a dry scrubbing part, a wet scrubbing part and a power part. The frame is in sliding fit on the guide rail device. The dry wiping part is arranged on the frame, wipes and cleans the blackboard by adopting a dry method, and wipes the blackboard by adopting dry and soft fiber materials, sponge and the like to wipe the blackboard so as to wipe the chalk characters on the blackboard. The dry wiping has the advantage that the blackboard can be used immediately after wiping, but has the problem that wiping is not clean after the wiping times are increased, so a wet cleaning part is arranged behind the dry wiping part. The wet washing part is arranged on the frame and can clean the blackboard in a wet washing mode, the wet washing part is made of soft fiber materials dipped in water and made of sponge and the like and cleans the blackboard, the blackboard can be cleaned more cleanly in the wet washing mode, but the blackboard cannot be used within a period of time after being cleaned (when water exists on the surface of the blackboard, the blackboard cannot be used for writing), and therefore the distance between the wet washing part and the blackboard is controlled by the device. For example, during a class, the blackboard is scrubbed only by the dry scrubbing part, so that the work of scrubbing the blackboard can be finished, and the influence on the normal teaching process due to the fact that the blackboard cannot be used immediately due to water adhesion can be avoided; the wet-washing part can be used for cleaning the blackboard in a classroom or after class, so that the blackboard can be cleaned more cleanly, and the influence on the normal teaching process can be avoided. The power part is arranged on the frame and used for driving the frame to move on the guide rail device, and the power part is electrically connected with the controller and can control the work of the scrubbing part by pressing the controller. And when the blackboard eraser is used for erasing, the dry erasing part and the wet cleaning part sequentially erase the blackboard. Most of chalk dust on the blackboard is firstly erased through the dry erasing part, and then the blackboard is deeply cleaned through the wet cleaning part, so that the cleaning effect is improved.

Furthermore, the scrubbing part also comprises two sets of reciprocating driving devices which are arranged on the frame; a set of reciprocating driving device acts on the dry wiping part and is used for controlling the dry wiping part to reciprocate towards the direction vertical to the blackboard surface; a set of reciprocating drive device acts on the wet cleaning part and is used for controlling the distance between the wet cleaning part and the blackboard. The reciprocating driving device adopts a cylinder device, and the dry wiping part or the wet washing part is driven to move back and forth by the extension and contraction of a piston rod of the cylinder. The wet cleaning part can also adopt a screw rod sliding block structure, the wet cleaning part and the dry wiping part are arranged on a sliding block, a screw rod is connected with a power output shaft of a servo motor, and the wet cleaning part and the dry wiping part can be controlled to reciprocate by controlling the steering of the servo motor. And then the distance between the wet cleaning part and the blackboard surface is controlled through the reciprocating driving device (when the blackboard is required to be cleaned by the wet cleaning part, the wet cleaning part can be attached to the blackboard surface through the reciprocating driving device, and when the blackboard is not required to be cleaned by the wet cleaning part, the wet cleaning part can be far away from the blackboard surface through the reciprocating driving device), so that the selective wet cleaning part is used. After the dry wiping part finishes wiping the blackboard, the dry wiping part can repeatedly collide with the wall surface at the ash cleaning section through the reciprocating driving device, so that the purpose of cleaning chalk dust on the surface of the dry wiping part is realized, and the self-cleaning of the dry wiping part is further realized.

Further, as shown in fig. 5, the reciprocating driving means includes a cylinder, a reciprocating frame. The reciprocating motion frame is in sliding fit with the frame (a sliding groove is formed in the frame, sliding blocks are arranged on two sides of the reciprocating motion frame and are in sliding fit with the sliding groove), when the cleaning part is used for cleaning, the part, in contact with the blackboard, of the cleaning part is arranged on the reciprocating motion frame (the part, in contact with the blackboard, of the cleaning part and used for cleaning is controlled by the reciprocating driving device), the end cover of the air cylinder is fixed on the frame, and the end part of the piston rod of the air cylinder is arranged on the reciprocating motion frame and used for pushing the reciprocating motion frame to do reciprocating motion. The distance between the wet cleaning part and the blackboard surface can be controlled by controlling the extension and retraction of the piston rod of the air cylinder, and the dry cleaning part is controlled to realize self cleaning.

Furthermore, collecting grooves are formed in the front end and the rear end of the bottom of the frame along the scrubbing working direction and used for collecting chalk dust falling off in the process that the dry scrubbing part scrubs the blackboard and collecting cleaning liquid flowing down from the wet scrubbing part. The collecting groove is a groove body which is concave downwards, when chalk dust falls downwards under the action of self gravity, the collecting groove can collect the chalk dust, and the chalk dust is prevented from falling to the classroom ground to pollute the surrounding environment. Similarly, the tank body can be used for collecting the cleaning liquid flowing down from the wet cleaning part, so that the cleaning liquid is prevented from flowing to the floor of a classroom in a large amount.

Further, the dry wiping part comprises a first dry wiping strip, a second dry wiping strip, a purifying device and a dust collecting device. The first dry wiping strip is arranged on the frame and used for wiping the blackboard preliminarily, the first dry wiping strip is made of an internal rigid wiping rod (such as materials of iron, aluminum and the like), a layer of flexible material (such as cotton, fibers, sponge and the like) is wrapped outside the first dry wiping strip, and the rigid wiping rod is used for supporting the external flexible material to keep the original shape. The second dry-cleaning strip is arranged on the frame, the composition of the second dry-cleaning strip is the same as that of the first dry-cleaning strip, but the width of the second dry-cleaning strip is smaller than that of the first dry-cleaning strip (the second dry-cleaning strip is mainly used for cleaning the blackboard for the second time, and the amount of chalk dust on the blackboard surface is not large at the moment, so that a structure with smaller width is adopted, the cost is reduced), the second dry-cleaning strip is used for further cleaning the blackboard, the blackboard is sequentially cleaned by adopting the first dry-cleaning strip and the second dry-cleaning strip, and the cleaning effect of the dry-cleaning part is improved (the cleaning effect is improved by adopting two-stage stepped cleaning). The dust collection end of the dust collection device is arranged at the front end of the running direction of the first dry wiping strip when the first dry wiping strip wipes the blackboard and at the front end of the running direction of the second dry wiping strip wipes the blackboard, and the dust collection end is used for removing chalk dust wiped by the first dry wiping strip and the second dry wiping strip and preventing the chalk dust from polluting the surrounding environment. The purifying device is arranged at the other end of the dust collecting device and is used for removing the chalk dust sucked by the dust collecting device. By arranging the dust suction device and the purification device, the chalk dust falling from the blackboard is cleaned and treated, so that the chalk dust is prevented from floating in the air and being sucked into the human body.

Further, the purifier includes filter layer, purification basin. The inside washing liquid (clear water) that is provided with of purification basin, the gas that contains the chalk dust of dust extraction output passes through the pipeline and inputs in the washing liquid for gas is after the washing that receives the washing liquid, and the chalk dust all stays in the washing liquid, and clean gas is then discharged through the venthole that the top of purification basin set up. The filter layer (for example, sponge dipped in water) is arranged at the top of the purification water tank and is used for filtering the gas to be discharged out of the purification water tank and preventing chalk dust from being discharged out of the purification water tank.

Further, the wet washing part comprises a water circulation treatment device, a wet washing motor, a cleaning strip, a drying strip and a wet washing roller. The both ends of wet scrubbing roller set up on reciprocating motion frame through bearing connected mode, and the wet scrubbing roller is used for scrubbing the blackboard (the water that the wet scrubbing roller scrubbed the blackboard is provided by clean strip), and the wet scrubbing roller surface adopts flexible water absorption material (like sponge, cotton, fibre etc.) to make, and the inside of wet scrubbing roller is provided with rigid axle (metal such as iron aluminium makes). The wet-washing motor is arranged on the reciprocating motion frame, the power output end of the wet-washing motor is matched with the wet-washing roller in a gear meshing mode, and the wet-washing motor is used for driving the wet-washing roller to rotate (when the wet-washing roller needs to be automatically cleaned, the wet-washing motor drives the wet-washing roller to rotate and is matched with the self-cleaning action of the wet-washing roller). The cleaning strip is arranged on the frame, the cleaning strip is used on the wet scrubbing roller, a water channel is arranged inside the cleaning strip, one end of the water channel is connected with a water pipe, and the cleaning strip is used for providing water needed by the wet scrubbing roller during scrubbing and cleaning the wet scrubbing roller after the scrubbing work is finished. As shown in fig. 6, when the wet cleaning roller needs to be cleaned, the reciprocating driving device firstly retracts the wet cleaning portion to an initial state (the wet cleaning portion is far away from the blackboard surface at this time), one end of the cleaning strip is pressed against the wet cleaning roller at this time, the wet cleaning roller is deformed under pressure, the other end of the cleaning strip is provided with a small water outlet hole, water in the water channel flows into the wet cleaning roller through the small water outlet hole, the wet cleaning roller is full of water, the wet cleaning motor works at this time, the wet cleaning roller rotates (the rotation speed of the wet cleaning motor needs to be slower, and the rotation speed of the wet cleaning roller is controlled to be 60-100r/min), so that water is added to the wet cleaning roller through the rotation of the wet cleaning roller and one end of the cleaning strip, water is squeezed out from the dust and dirt on the wet cleaning roller through the flow of the water, the purpose of automatically self-cleaning of the wet cleaning roller is achieved, and the wet cleaning roller keeps an efficient cleaning effect.

Because the blackboard face after the roller washing that wets can't use immediately (there is moisture on the blackboard surface, influences the blackboard and uses), in order to accelerate the dry of blackboard, so set up dry strip, dry strip sets up on reciprocating motion frame for carry out drying process to the blackboard that the roller washed that wets, dry strip adopts dry water-absorbing material to make (such as sponge, cotton, fibre, etc.), wipe the blackboard through dry strip, absorb the moisture on the blackboard face in the dry strip, accelerate the dry of blackboard.

Because the wet washing roller can generate sewage after cleaning the blackboard and self-cleaning, the water circulation treatment device is arranged to avoid the sewage from directly flowing to the floor of the classroom to influence the classroom environment. The input end of the water circulation treatment device is arranged at the lower end of the frame and used for purifying sewage flowing down from the wet washing roller and conveying the purified water to the cleaning strips for internal recycling. The water circulation treatment device pumps the sewage to a unified recovery position for treatment, and then conveys the treated water to the cleaning strip by using the pump body for reuse of the wet washing roller. Through setting up hydrologic cycle processing apparatus both can avoid the sewage to flow to classroom ground, influence classroom environment, realize the cyclic utilization of water resource moreover, practiced thrift the water resource.

Further, the drying strip comprises a heating drying rod and a flexible water absorbing material layer. The inside resistance wire heating tube that is of the hot drying stick, the surface sets up insulating coating (prevents that inside resistance wire heating tube from taking place electric leakage phenomenon), the hot drying stick surface is located to flexible absorbent material (like the sponge, cotton, fibre etc.) layer cover, flexible absorbent material layer is used for absorbing the moisture on the blackboard, after flexible absorbent material absorbed moisture, hot drying stick begins work, heat flexible absorbent material, improve the volatilization velocity of moisture in the flexible absorbent material, and then make the drying that the drying strip can be quick, keep the function of good absorption blackboard face moisture.

Further, as shown in fig. 9, the water circulation treatment apparatus includes an output pump, an input pump, and a water treatment tank. The middle of the water treatment tank is provided with a baffle, the upper end of the baffle is provided with a through hole, and the through hole is used for allowing water after standing treatment to stay at the other side of the water treatment tank. The input pump is used for pumping the sewage to be treated from the wet washing part through a pipeline and conveying the sewage to the water treatment tank. The output pump is used for pumping the treated water out of the water treatment tank and conveying the treated water into the cleaning strip. The bottom (the side that is close to the sewage input end) of water treatment tank is provided with the drain, is provided with the valve on the drain, uses the back when water cycle processing apparatus for a long time, and its inside deposit a large amount of chalk dust (the mixture of calcium carbonate and calcium sulfate), can be through opening the valve on the drain this moment, in the water cycle processing apparatus with the whole discharge water cycle processing apparatus of chalk dust, keeps water cycle processing apparatus's function.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. An automatic blackboard scrubbing device, comprising:

the controller is used for controlling the scrubbing part to scrub the blackboard;

the scrubbing section includes:

a frame slidably fitted on the rail arrangement;

when the blackboard eraser is used for erasing, the dry erasing part and the wet cleaning part sequentially erase the blackboard;

the scrubbing part also comprises two sets of reciprocating driving devices, and the reciprocating driving devices are arranged on the frame; a set of reciprocating driving device acts on the dry wiping part and is used for controlling the dry wiping part to reciprocate towards the direction vertical to the blackboard surface; a set of reciprocating driving devices acts on the wet cleaning part and is used for controlling the distance between the wet cleaning part and the blackboard;

the reciprocating drive device comprises:

the end cover of the air cylinder is fixed on the frame, and the end part of a piston rod of the air cylinder is arranged on the reciprocating frame and used for pushing the reciprocating frame to do reciprocating motion;

the wet-washing section includes:

2. An automatic blackboard erasing apparatus according to claim 1, wherein:

collecting grooves are formed in the front end and the rear end of the bottom of the frame along the scrubbing working direction and used for collecting chalk dust falling off in the process that the dry scrubbing part scrubs the blackboard and collecting cleaning liquid flowing down from the wet scrubbing part.

3. An automatic blackboard erasing apparatus according to claim 1, wherein the dry erasing part includes:

4. An automatic blackboard erasing apparatus according to claim 3, wherein the cleaning means includes:

5. An automatic blackboard erasing apparatus according to claim 1, wherein the drying bar includes:

6. An automatic blackboard erasing apparatus according to claim 1, wherein the water circulation processing means includes: