CN110341352B

CN110341352B - Dustproof blackboard

Info

Publication number: CN110341352B
Application number: CN201910687156.4A
Authority: CN
Inventors: 苏君丽; 王东阳; 苏俊刚; 侯洁琼
Original assignee: Jiaozuo Teachers College
Current assignee: Jiaozuo Teachers College
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-10-30
Anticipated expiration: 2039-07-29
Also published as: CN110341352A

Abstract

The invention relates to the field of dust prevention, in particular to a dust-proof blackboard which comprises a blackboard, a dust-free mechanism, a dryer and an optimization mechanism, wherein the dust-free mechanism can be used for quickly cleaning a blackboard body without dust, the blackboard body can be uniformly moistened during cleaning, the water consumption is low, the water consumption is high, and the blackboard body can be dehumidified and is convenient for writing immediately after being cleaned without producing water and powder mixed prints; the rubber rod, clean sponge and absorb water sponge II's the clean effectual of combined use, clean efficient, clean the back that finishes through optimizing mechanism self-cleaning, the user only need after repetitious usage or after teaching on the same day clean the sponge clean can.

Description

Dustproof blackboard

Technical Field

The invention relates to the field of dust prevention, in particular to a dust-proof blackboard.

Background

For example, a teaching dust-proof blackboard with publication number CN108528107A, which comprises a blackboard body, wherein the blackboard body is composed of a writing board and a frame surrounding the writing board, a board surface flushing device is fixed on the upper frame, a water collecting tank for collecting flushing water is arranged on the lower frame, and the bottom of the water collecting tank is communicated with a water drainage pipe; the writing board is provided with a board surface wiping device, the board surface wiping device comprises a wiping roller horizontally attached to the writing board, and a driving device I for driving the wiping roller to rotate; the side direction of the writing board is provided with a lifting mechanism, the board surface wiping device is connected with a lifting moving block of the lifting mechanism, and the frame is provided with a blackboard drying device. The handwriting written on the board surface can be automatically erased, the chalk dust can be effectively prevented from diffusing during erasing, and the teaching environment of teachers and students can be improved to a certain extent; however, when the blackboard is flushed by water, water flow is sprayed downwards and can quickly fall into the water collecting tank, the water resource utilization rate is low, the wetting degree of the blackboard is not uniform, dust is still raised when the unwetted place of the blackboard is cleaned by rotating the wiping roller, the blackboard is not easy to dry, the next use is influenced, a large amount of water generated when the blackboard is frequently cleaned is inconvenient to discharge through a water discharge pipeline in a classroom, and the container is inconvenient to use because the container needs to be moved and poured after the large amount of water is discharged into the container.

Disclosure of Invention

The invention aims to provide a dustproof blackboard which can be automatically cleaned, and dust can be automatically removed in the cleaning process.

The purpose of the invention is realized by the following technical scheme:

a dustproof blackboard comprises a blackboard, a dust-free mechanism, a dryer and an optimization mechanism, wherein the blackboard is in threaded connection with the dust-free mechanism, the dryer is fixedly connected to the left end of the blackboard, and the optimization mechanism is connected with the right end of the blackboard.

The blackboard comprises a blackboard body, an expansion frame, a top arm, a lead screw I, a bottom arm, a lead screw II, a belt wheel I and a motor I, wherein the front end of the blackboard body is fixedly connected with the expansion frame, the left end and the right end of the upper end of the expansion frame are fixedly connected with the top arm respectively, the two ends of the lead screw I are rotatably connected with the outer ends of the two top arms respectively, the left end and the right end of the lower end of the expansion frame are fixedly connected with the bottom arm respectively, the two ends of the lead screw II are rotatably connected with the outer ends of the two bottom arms respectively, the left end of the lead screw I and the left end of the lead screw II are fixedly connected with the belt wheel I respectively, the two belt wheels I are connected through synchronous belt transmission.

The dust-free mechanism comprises a C-shaped base body, a left water tank shell, a right water tank shell, a movable clamping plate, a water absorption sponge I, a water tank shell, a laminating part, a roller seat, a rubber roller, a wiping sponge and a water absorption sponge II, wherein the left side of the rear end of the C-shaped base body is fixedly connected with the left water tank shell, the right side of the rear end of the C-shaped base body is fixedly connected with the right water tank shell, the right end of the front end of the right water tank shell is provided with an opening, the left water tank shell and the right water tank shell are fixedly connected in a sealing way, the upper end and the lower end of the movable clamping plate are respectively fixedly connected with the upper side and the lower side of the joint of the left water tank shell and the right water tank shell, the water absorption sponge I is clamped in a space surrounded by the left water tank shell, the right water tank shell and the movable clamping plate, the water tank shell and the rear ends of the left water tank shell and the right water, the rubber roller is attached to the attaching part, the rubber roller is contacted with the water absorption sponge I, the wiping sponge is fixedly connected to the right side of the front end of the C-shaped base body, and the water absorption sponge II is fixedly connected to the left side of the front end of the C-shaped base body; the upper side and the lower side of the front end of the C-shaped base body are respectively in threaded connection with the screw I and the screw II.

And the surface of the bonding part is polished and is made of stainless steel.

The upper end and the lower end of the dryer are respectively and fixedly connected to the top arm at the left end and the bottom arm at the left end.

The dryer adopts electric hot air for drying.

The optimization mechanism comprises a vertical plate, a shaft, a motor II, synchronous rollers, a synchronous belt and cleaning sponge, wherein the upper side and the lower side of the vertical plate are respectively and rotatably connected with the right end of one shaft, an output shaft of the motor II is fixedly connected with the right end of the shaft positioned at the lower end, the motor II is fixedly connected on the vertical plate, the two shafts are respectively and fixedly connected with one synchronous roller, the two synchronous rollers are connected through the synchronous belt in a transmission way, and the cleaning sponge is fixedly connected on the synchronous belt; the upper end and the lower end of the vertical plate are respectively and fixedly connected to the top arm at the right end and the bottom arm at the right end, and the left ends of the two shafts are respectively and rotatably connected to the upper side and the lower side of the expansion frame.

The dustproof blackboard also comprises a collecting part, wherein the collecting part comprises a water guide part, a water receiving tank and a water blocking valve; the water guide part is fixedly connected to the bottom arm at the right end, and the rear end of the water guide part extrudes the cleaning sponge.

The rear surface of the water guide part is polished, and the water guide part is made of stainless steel.

The dustproof blackboard further comprises an installation board, and the installation board is fixedly connected to the front end of the expansion frame.

The dustproof blackboard of the invention has the beneficial effects that:

the blackboard body can be quickly cleaned without dust by using the dust-free mechanism, the blackboard body can be uniformly moistened during cleaning, the water consumption is low, the water consumption is high, the water efficiency is high, and the blackboard body after being cleaned can be dehumidified while no water and powder mixed print is generated on the blackboard body, so that the blackboard body can be conveniently and immediately written; the rubber roller, clean sponge and absorb water sponge II's combination use clean effectual, clean efficient, clean the back that finishes through optimizing mechanism self-cleaning, the user only need after repetitious usage or after teaching on the same day finish clean sponge clean can.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a first schematic view showing the overall structure of a dustproof blackboard according to the present invention;

FIG. 2 is a second overall structural schematic of the present invention;

FIG. 3 is a first diagram illustrating the blackboard structure of the present invention;

FIG. 4 is a second schematic diagram of the blackboard structure of the present invention;

FIG. 5 is a first schematic structural diagram of the dust-free mechanism of the present invention;

FIG. 6 is a schematic structural diagram II of the dust-free mechanism of the present invention;

FIG. 7 is a schematic view of a C-shaped substrate structure of the present invention;

FIG. 8 is a schematic view of a part of the structure of the dust-free mechanism of the present invention;

FIG. 9 is a schematic view I of a structure of a part of the dust-free mechanism of the invention to the structure of a water tank shell;

FIG. 10 is a schematic view of the structure of the dust-free mechanism of the present invention, which is partially removed from the water tank housing;

FIG. 11 is a partial schematic view of the dust free mechanism of the present invention partially constructed to the tank housing;

fig. 12 is a schematic view of a dryer according to the present invention;

FIG. 13 is a schematic view of the optimized mechanism of the present invention;

FIG. 14 is a left side view of the optimizing mechanism of the present invention;

fig. 15 is a schematic view of the structure of the collecting part of the present invention.

In the figure: a blackboard 1; a blackboard body 101; an expansion frame 102; a top arm 103; a lead screw I104; a bottom arm 105; a lead screw II 106; a pulley I107; a motor I108; a dust-free mechanism 2; a C-shaped substrate 201; a water tank left shell 202; a right tank shell 203; a movable clamping plate 204; a water-absorbing sponge I205; a water tank housing 206; a bonding portion 207; a roller base 208; a rubber roller 209; a wiping sponge 210; a water-absorbing sponge II 211; a dryer 3; an optimization mechanism 4; a vertical plate 401; a shaft 402; a motor II 403; a synchronizing roller 404; a synchronous belt 405; a cleaning sponge 406; a collecting section 5; a water guide portion 501; a water holding tank 502; a water shutoff valve 503; the panel surface 6 is installed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1-15, the dustproof blackboard comprises a blackboard 1, a dust-free mechanism 2, a dryer 3 and an optimization mechanism 4, wherein the dust-free mechanism 2 is connected to the blackboard 1 through a screw thread, the dryer 3 is fixedly connected to the left end of the blackboard 1, and the optimization mechanism 4 is connected to the right end of the blackboard 1. The dust-free mechanism 2 can be used for rapidly cleaning the blackboard body 101 without dust, the blackboard body 101 can be uniformly moistened during cleaning, the water consumption is low, the water consumption is high, and the blackboard body 101 after being cleaned can be dehumidified while no water and powder mixed print is generated on the blackboard body and is convenient for writing immediately; the combination of rubber roller 209, wiping sponge 210 and the sponge II 211 that absorbs water uses cleanly effectual, clean efficient, clean the back that finishes through optimizing mechanism 4 self-cleaning, the user only need after repetitious usage or the teaching on the same day end clean sponge 406 can.

The second embodiment is as follows:

as shown in fig. 1-15, the blackboard 1 includes a blackboard body 101, an extension frame 102, a top arm 103, a lead screw i 104, a bottom arm 105, a lead screw ii 106, a pulley i 107 and a motor i 108, the front end of the blackboard body 101 is fixedly connected to the extension frame 102, the left and right ends of the upper end of the extension frame 102 are respectively and fixedly connected to the top arm 103, the two ends of the lead screw i 104 are respectively and rotatably connected to the outer ends of the two top arms 103, the left and right ends of the lower end of the extension frame 102 are respectively and fixedly connected to the bottom arm 105, the two ends of the lead screw ii 106 are respectively and rotatably connected to the outer ends of the two bottom arms 105, the left end of the lead screw i 104 and the left end of the lead screw ii 106 are respectively and fixedly connected to the pulley i 107, the two pulley i 107 are connected through a synchronous belt, the output shaft of. When the blackboard body 101 needs to be cleaned without dust, the motor I108 is started, the output shaft of the motor I108 drives the screw II 106 to rotate, the screw II 106 drives the screw I104 to synchronously rotate through the transmission of the two belt wheels I107, further, the C-shaped base body 201 can move rightwards through the lead screw I104 and the lead screw II 106, the rubber roller 209 can move rightwards through the C-shaped base body 201, when the rubber roller 209 is positioned on the rear end surface of the blackboard body 101, the rubber roller 209 and the blackboard body 101 are in a mutual contact state, the rubber roller 209 rotates anticlockwise due to the friction force generated by the blackboard body 101 along with the rightward movement of the rubber roller 209, the rubber roller 209 continuously contacts with the wetted water absorbing sponge I205 while rotating, the rubber roller 209 is uniformly wetted by the water absorbing sponge I205, the wetted rubber roller 209 rolls the blackboard body 101 wet, the way of wetting the blackboard body 101 is to make the blackboard body 101 wet uniformly by utilizing high water resource rate.

The third concrete implementation mode:

as shown in fig. 1-15, the dust-free mechanism 2 includes a C-shaped base 201, a left water tank shell 202, a right water tank shell 203, a movable clamping plate 204, a water absorbing sponge i 205, a water tank shell 206, a joint portion 207, a roller seat 208, a rubber roller 209, a wiping sponge 210 and a water absorbing sponge ii 211, the left water tank shell 202 is fixedly connected to the left side of the rear end of the C-shaped base 201, the right water tank shell 203 is fixedly connected to the right side of the rear end of the C-shaped base 201, an opening is formed in the right end of the front end of the right water tank shell 203, the left water tank shell 202 and the right water tank shell 203 are fixedly connected in a sealing manner, the upper end and the lower end of the movable clamping plate 204 are fixedly connected to the upper side and the lower side of the joint of the left water tank shell 202 and the right water tank shell 203 respectively, the water absorbing sponge i 205 is clamped in a space surrounded by the left water tank shell 202, the right water tank shell 203 and, the upper end and the lower end of the right water tank shell 203 are respectively fixedly connected with a roller seat 208, the upper end and the lower end of a rubber roller 209 are respectively rotatably connected onto the two roller seats 208 through a one-way bearing, the rubber roller 209 is jointed with the jointing part 207, the rubber roller 209 is contacted with a water-absorbing sponge I205, a wiping sponge 210 is fixedly connected to the right side of the front end of the C-shaped base body 201, and a water-absorbing sponge II 211 is fixedly connected to the left side of the front end of the C-shaped base body 201; the upper side and the lower side of the front end of the C-shaped base body 201 are respectively in threaded connection with a screw I104 and a screw II 106. Referring to fig. 8, a water filling port is arranged on the water tank shell 206, and a bucket-shaped structure is further arranged on the water filling port in combination with fig. 5, so that water can be filled into a water tank space surrounded by the water tank left shell 202, the water tank right shell 203 and the water tank shell 206 through the water filling port, the filled water can be absorbed by the water absorption sponge i 205, the water filling amount is enough to enable the water absorption sponge i 205 to completely absorb the water which is not absorbed or a small amount of water which is not absorbed, the rubber roller 209 is arranged on the roller base 208 through a one-way bearing and is used for enabling the rubber roller 209 to rotate only along with the dust-free mechanism 2 when moving rightwards, namely, the rubber roller 209 can rotate only anticlockwise, the roller base 208 is a bearing base, the joint part 207 and the rubber roller 209 can scrape excessive water on the rubber roller 209, the water on the water absorption sponge i 205 can not excessively soak in the rubber roller 209, the characters on the blackboard body 101 are firstly cleaned, subsequently, the water-absorbing sponge II 211 absorbs water from the cleaned position or removes the mixed blot of water and powder left after cleaning.

The fourth concrete implementation mode:

as shown in fig. 1-15, the surface of the bonding portion 207 is polished and made of stainless steel.

The fifth concrete implementation mode:

as shown in fig. 1 to 15, the upper and lower ends of the dryer 3 are respectively fixedly connected to a top arm 103 at the left end and a bottom arm 105 at the left end. The initial position of the dust-free mechanism 2 is that the water absorption sponge II 211 corresponds to the dryer 3, and the dryer 3 is used for drying the water absorption sponge II 211.

The sixth specific implementation mode:

as shown in fig. 1 to 15, the dryer 3 dries by using electric hot air. After the cleaning of the wiping sponge 210, the water absorbing sponge II 211 and the rubber roller 209 is finished, the blackboard eraser moves leftwards again to return to the initial position, the drying machine 3 can be used for drying the water absorbing sponge II 211, and the water absorbing effect is enhanced, so that the blackboard body 101 can be dried and conveniently written after being cleaned.

The seventh embodiment:

as shown in fig. 1-15, the optimization mechanism 4 includes a vertical plate 401, shafts 402, a motor ii 403, synchronous rollers 404, a synchronous belt 405 and a cleaning sponge 406, the upper and lower sides of the vertical plate 401 are respectively rotatably connected to the right end of one shaft 402, the output shaft of the motor ii 403 is fixedly connected to the right end of the shaft 402 located at the lower end, the motor ii 403 is fixedly connected to the vertical plate 401, the two shafts 402 are respectively fixedly connected to one synchronous roller 404, the two synchronous rollers 404 are in transmission connection through the synchronous belt 405, and the synchronous belt 405 is fixedly connected to the cleaning sponge 406; the upper and lower ends of the vertical plate 401 are respectively and fixedly connected to the top arm 103 at the right end and the bottom arm 105 at the right end, and the left ends of the two shafts 402 are respectively and rotatably connected to the upper and lower sides of the expansion frame 102. When the dust-free mechanism 2 moves rightwards to the farthest distance and stops, the wiping sponge 210, the water absorbing sponge II 211 and the rubber roller 209 are all in contact with the cleaning sponge 406, the motor II 403 is started, the motor II 403 drives the synchronous belt 405 to rotate, the synchronous belt 405 drives the cleaning sponge 406 to rotate, the cleaning sponge 406 cleans the wiping sponge 210, the water absorbing sponge II 211 and the rubber roller 209, and the cleaning sponge 406 rotates clockwise during cleaning.

The specific implementation mode is eight:

as shown in fig. 1 to 15, the dust-proof blackboard further includes a collecting portion 5,

the collecting part 5 comprises a water guide part 501, a water receiving tank 502 and a water blocking valve 503, the right end of the water guide part 501 is fixedly connected with the water receiving tank 502, and the lower end of the water receiving tank 502 is in threaded sealing connection with the water blocking valve 503; the water guide 501 is fixed to the bottom arm 105 at the right end, and the rear end of the water guide 501 presses the cleaning sponge 406. The cleaning sponge 406 moves downwards when the water guide part 501 contacts with the water storage tank 502, the water guide part 501 scrapes water on the cleaning sponge and guides the water to the water storage tank 502, the water blocking valve 503 can discharge water after being screwed off, and actually, because the water storage tank rolls to discharge water, the water quantity is small, and water in the water storage tank 502 is almost not required to be released and naturally dried when the water storage tank is normally used due to mutual water absorption between the sponge and the sponge.

The specific implementation method nine:

as shown in fig. 1 to 15, the rear surface of the water guide part 501 is polished, and the water guide part 501 is made of stainless steel.

The detailed implementation mode is ten:

as shown in fig. 1 to 15, the dustproof blackboard further includes a mounting plate 6, and the mounting plate 6 is fixed to the front end of the extension frame 102. The mounting plate surface 6 facilitates mounting of the invention on a wall.

The invention relates to a dustproof blackboard, which has the working principle that:

referring to fig. 8, a water filling port is formed in the water tank shell 206, and a bucket-shaped structure is further arranged on the water filling port in combination with fig. 5, so that water is filled into a water tank space surrounded by the water tank left shell 202, the water tank right shell 203 and the water tank shell 206 through the water filling port, the filled water is absorbed by the water absorption sponge i 205, the water filling amount is enough to enable the water absorption sponge i 205 to completely absorb water without unabsorbed water or a small amount of unabsorbed water, the dust-free mechanism 2 is in an initial position where the water absorption sponge ii 211 corresponds to the dryer 3, the dryer 3 is used for drying the water absorption sponge ii 211, the rubber roller 209 is mounted on the roller base 208 through a one-way bearing and is used for enabling the rubber roller 209 to rotate only when the dust-free mechanism 2 moves rightwards, that is the rubber roller 209 can only rotate anticlockwise; when the blackboard body 101 needs to be cleaned without dust, the motor I108 is started, the output shaft of the motor I108 drives the screw II 106 to rotate, the screw II 106 drives the screw I104 to rotate synchronously through the transmission of the two belt wheels I107, further, the screw I104 and the screw II 106 can enable the C-shaped base body 201 to move rightwards, the C-shaped base body 201 enables the rubber roller 209 to move rightwards, when the rubber roller 209 is positioned on the rear end surface of the blackboard body 101, the rubber roller 209 and the screw I are in a mutually contacted state, the rubber roller 209 moves rightwards, the rubber roller 209 rotates anticlockwise due to the friction force generated by the blackboard body 101, the rubber roller 209 continuously contacts with the soaked water absorption sponge I205 while rotating, the rubber roller 209 is uniformly wetted by the water absorption sponge I205, the wetted rubber roller 209 rolls the blackboard body 101, the manner of wetting the blackboard body 101 has high water resource rate and can uniformly wet the blackboard body 101, the joint of the joint part 207 and the rubber roller 209 can scrape excessive water on the rubber roller 209, so that the water on the water absorption sponge I205 is prevented from being excessively soaked on the rubber roller 209, chalk marks on the blackboard body 101 are firstly wetted by rolling and cleaned by the wiping sponge 210, and then the water absorption sponge II 211 absorbs water on the cleaned position or removes marks formed by mixing water and powder left after cleaning; when the dust-free mechanism 2 moves rightwards to the farthest distance and stops, the wiping sponge 210, the water absorbing sponge II 211 and the rubber roller 209 are all in contact with the cleaning sponge 406, the motor II 403 is started, the motor II 403 drives the synchronous belt 405 to rotate, the synchronous belt 405 drives the cleaning sponge 406 to rotate, the cleaning sponge 406 cleans the wiping sponge 210, the water absorbing sponge II 211 and the rubber roller 209, the cleaning sponge 406 rotates clockwise during cleaning, namely the cleaning sponge 406 in contact with the water guide part 501 moves downwards, the water guide part 501 scrapes and guides water on the cleaning sponge to the water containing tank 502, the water blocking valve 503 can drain water after being screwed down, actually, as the dust-free mechanism is used for discharging water in a rolling mode, the water quantity is small, water is absorbed through the sponge and the sponge, water in the water containing tank 502 is almost not required to be released for natural air drying during normal use, and the wiping sponge 210, the water absorbing sponge II 211 and the rubber roller 209 move leftwards again to the initial position after cleaning is finished, the drying machine 3 can be used for drying the water absorption sponge II 211, the water absorption effect of the drying machine is enhanced, the blackboard body 101 can be dried and convenient to write after being cleaned, the drying machine is also suitable for large-scale blackboards, dust-free cleaning can be performed on the large-scale blackboards quickly, water and powder mixed printing is not generated after cleaning, writing can be performed immediately, a teacher and students do not need to clean the blackboards, the labor capacity of the teacher is reduced, the students do not need to clean the blackboards repeatedly through cleaning rags, and the dust prevention effect is good.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides a dustproof blackboard, includes blackboard (1), dustless mechanism (2), drying-machine (3) and optimization mechanism (4), its characterized in that: the blackboard is characterized in that a dust-free mechanism (2) is connected to the blackboard (1) in a threaded manner, a dryer (3) is fixedly connected to the left end of the blackboard (1), an optimization mechanism (4) is connected to the right end of the blackboard (1), the blackboard (1) comprises a blackboard body (101), an expansion frame (102), top arms (103), a lead screw I (104), bottom arms (105), a lead screw II (106), belt wheels I (107) and a motor I (108), the front end of the blackboard body (101) is fixedly connected with the expansion frame (102), the left end and the right end of the upper end of the expansion frame (102) are respectively and fixedly connected with the top arms (103), the two ends of the lead screw I (104) are respectively and rotatably connected with the outer ends of the two top arms (103), the left end and the right end of the lower end of the expansion frame (102) are respectively and fixedly connected with the bottom arms (105), the two ends of the lead screw II (106) are respectively and rotatably connected with the outer ends of the two bottom arms (105, the two belt wheels I (107) are connected through synchronous belt transmission, an output shaft of a motor I (108) is fixedly connected with the right end of a lead screw II (106), the motor I (108) is fixedly connected with a bottom arm (105) positioned at the right end, the dust-free mechanism (2) comprises a C-shaped base body (201), a water tank left shell (202), a water tank right shell (203), a movable clamping plate (204), a water absorption sponge I (205), a water tank shell (206), a fitting part (207), a roller seat (208), a rubber roller (209), a wiping sponge (210) and a water absorption sponge II (211), the left side of the rear end of the C-shaped base body (201) is fixedly connected with the water tank left shell (202), the right side of the rear end of the C-shaped base body (201) is fixedly connected with the water tank right shell (203), the right end of the front end of the water tank right shell (203) is provided with an opening, the water tank left shell (202) and the water tank right shell (203) are fixedly connected in a sealing manner, and the upper end, the water absorption sponge I (205) is clamped in a space surrounded by the water tank left shell (202), the water tank right shell (203) and the movable clamping plate (204), the water tank shell (206) is fixedly connected with the rear ends of the water tank left shell (202) and the water tank right shell (203) in a sealing mode, the attaching portion (207) is fixedly connected to an opening of the water tank right shell (203), the upper end and the lower end of the right end of the water tank right shell (203) are fixedly connected with a roller seat (208) respectively, the upper end and the lower end of a rubber roller (209) are rotatably connected onto the two roller seats (208) through one-way bearings respectively, the rubber roller (209) is attached to the attaching portion (207), the rubber roller (209) is in contact with the water absorption sponge I (205), a wiping sponge (210) is fixedly connected to the right side of the front end of the C-shaped base body (201), and a water absorption sponge II (211; the upper side and the lower side of the front end of the C-shaped base body (201) are respectively in threaded connection with a lead screw I (104) and a lead screw II (106), the surface of the bonding part (207) is polished and made of stainless steel, the upper end and the lower end of the dryer (3) are respectively fixedly connected to a top arm (103) located at the left end and a bottom arm (105) located at the left end, the dryer (3) is dried by electric hot air, the optimization mechanism (4) comprises a vertical plate (401), a shaft (402), a motor II (403), a synchronous roller (404), a synchronous belt (405) and a cleaning sponge (406), the upper side and the lower side of the vertical plate (401) are respectively and rotatably connected with the right end of the shaft (402), an output shaft of the motor II (403) is fixedly connected with the right end of the shaft (402) located at the lower end, the motor II (403) is fixedly connected to the vertical plate (401), and the two shafts (402) are, the two synchronous rollers (404) are in transmission connection through a synchronous belt (405), and the synchronous belt (405) is fixedly connected with a cleaning sponge (406); the upper end and the lower end of the vertical plate (401) are respectively fixedly connected to the top arm (103) and the bottom arm (105), and the left ends of the two shafts (402) are respectively rotatably connected to the upper side and the lower side of the expansion frame (102).

2. The dustproof blackboard according to claim 1, characterized in that: the dustproof blackboard further comprises a collecting part (5), wherein the collecting part (5) comprises a water guide part (501), a water receiving tank (502) and a water blocking valve (503), the right end of the water guide part (501) is fixedly connected with the water receiving tank (502), and the lower end of the water receiving tank (502) is in threaded sealing connection with the water blocking valve (503); the water guide part (501) is fixedly connected to the bottom arm (105) at the right end, and the rear end of the water guide part (501) extrudes the cleaning sponge (406).

3. The dustproof blackboard according to claim 2, characterized in that: the rear surface of the water guide part (501) is polished, and the water guide part (501) is made of stainless steel.

4. The dustproof blackboard according to claim 3, characterized in that: the dustproof blackboard further comprises an installation board surface (6), and the installation board surface (6) is fixedly connected to the front end of the expansion frame (102).