Washable blackboard

Abstract

The utility model relates to a washing blackboard which structurally comprises a blackboard surface, a transmission system, a water circulation system and a scrubbing moving device. Wherein the scrubbing moving device comprises a moving frame body, a scrubbing flexible strip and water scraping strips, the scrubbing flexible strip is located in the middle of the moving frame body, the two water scraping strips are located on the two sides of the scrubbing flexible strip correspondingly, and the scrubbing flexible strip and the water scraping strips make contact with the surface of the blackboard correspondingly; flushing channels connected with the water circulation system are arranged on the two sides of the flexible scrubbing strip; a sliding rail is arranged on the blackboard face frame, a sliding block on the sliding rail is connected with the corresponding end of the movable frame body, and the transmission system is connected with the sliding block and drives the scrubbing movable device to move along the blackboard face frame. According to the washing blackboard, cleaning of the blackboard is achieved through movement of the washing channel, the scrubbing flexible strip and the water scraping strip, the floating dust phenomenon is avoided, the cleaning efficiency is high, and the cleaning cleanliness is high.

Description

Technical Field

[0001] The utility model relates to a water-washable blackboard and belongs to the technical field of teaching facilities. Background Art

[0002] Learning is a gradual process. When the teacher writes on the blackboard with chalk, students see the process of knowledge formation. As the teacher writes and explains, students can effectively combine the knowledge and information they have learned through vision and hearing. The process of writing on the blackboard is the process of our understanding, perception, and memory; moreover, such a process is crucial to students' learning and cannot be omitted.

[0003] In the above teaching process, the blackboard has advantages that electronic screens cannot match, but the chalk blackboard has the following problems: 1. Dust problem. 2. It is not easy to wipe clean, there is floating dust, and traces of fonts remain. 3. The physical effort and time consumption of wiping. Dust pollutes the air and is not conducive to the respiratory health of indoor personnel. The floating dust on the surface of the blackboard is not conducive to the visual health of employees. The process of wiping the blackboard can easily disrupt the learning atmosphere and rhythm. Although many scientific researchers have proposed many solutions, there has not been a thorough one that can make the society widely accept the equipment for large-scale use. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a water-washable blackboard, which realizes the cleaning of the blackboard through the movement of a flushing channel, a flexible scrubbing strip and a water scraping strip, not only solves the floating dust phenomenon, but also has high cleaning efficiency and high cleaning cleanliness.

[0005] In order to solve the above problems, the specific technical scheme of the utility model is as follows: a water-washable blackboard, comprising a blackboard surface, a transmission system, a water circulation system and a scrubbing movable device; wherein the scrubbing movable device comprises a movable frame, a scrubbing flexible strip and a wiper strip, the scrubbing flexible strip is located in the middle of the movable frame, and two wiper strips are respectively located on both sides of the scrubbing flexible strip, and the scrubbing flexible strip and the wiper strip are respectively in contact with the blackboard surface; flushing channels connected to the water circulation system are provided on both sides of the scrubbing flexible strip; a slide rail is provided on the frame of the blackboard surface, a slider on the slide rail is connected to the corresponding end of the movable frame, the transmission system is connected to the slider, and drives the scrubbing movable device to move along the frame of the blackboard surface.

[0006] The movable frame is arranged vertically and moves left and right along the blackboard surface; the water circulation system includes a water pump, a solenoid valve, a flushing channel and a water tank; the water tank is located directly below the blackboard surface, the water inlet pipe of the water pump is connected to the water tank, and the water outlet pipe of the water pump is connected to the flushing channel through the solenoid valve.

[0007] A filtering device is arranged in the water tank, and a water inlet pipeline of the water pump is inserted into the filtering device.

[0008] The water inlet of the flushing channel is located at the top of the movable frame and is in contact with the blackboard surface. The water flows downward along the blackboard surface and flows into the water tank.

[0009] There are four flushing channels, which are located on both sides of the wiper strip. The flushing channels are numbered as channel A, channel B, channel C and channel D from left to right. The four flushing channels are merged into two groups of parallel pipes at the top. Channel A, channel B and channel C are one group, and channel B, channel C and channel D are one group. These two groups of pipes are connected to the water outlet of the water circulation system through solenoid valves respectively.

[0010] The transmission system includes a transmission motor, a transmission chain and a sprocket. Six sprockets are respectively provided at the four corners of the blackboard. The sprocket supports the transmission chain to form an inner and outer double-layer structure, and the two-layer transmission chain forms a closed U-shaped transmission structure. The output shaft of the transmission motor is connected to one of the sprockets and drives the entire transmission chain to move; the slider on one side of the moving frame is connected to the outer transmission chain, and the slider on the other side of the moving frame is connected to the inner transmission chain.

[0011] Travel switches are respectively arranged at the two extreme positions of the movement of the movable frame.

[0012] The water-washable blackboard of the present application adopts the above structure and has the following advantages:

[0013] 1. The traditional blackboard style is adopted, which conforms to the public's aesthetics and habits. The consumables can be updated by removing the end cover of the mobile frame. In case of occasional power outages or failures, it can still be used as a traditional blackboard for teaching;

[0014] 2. Four flushing channels are used. The water flowing out first wets the fonts and then cleans them to avoid dust, which is beneficial to the respiratory health of faculty and staff;

[0015] 3. A water tank is set at the bottom of the blackboard. Its capacity is large, which can not only receive the water flowing down during the cleaning process, but also has sufficient internal water level, which can continuously provide water for the water pump through the filtering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the water-washable blackboard.

[0017] Figure 2 Schematic diagram of the water circulation system structure.

[0018] Figure 3 It is a schematic diagram of the transmission system structure.

[0019] Figure 4 It is a side view schematic diagram of the water circulation system. DETAILED DESCRIPTION

[0020] like Figures 1 to 3 As shown, a water-washable blackboard comprises a blackboard surface 1, a transmission system, a water circulation system and a scrubbing movable device; wherein the scrubbing movable device comprises a movable frame 2, a scrubbing flexible strip 3 and a wiping strip 4, the scrubbing flexible strip 3 is located in the middle of the movable frame 2, and two wiping strips 4 are respectively located on both sides of the scrubbing flexible strip 3, and the scrubbing flexible strip 3 and the wiping strip 4 are respectively in contact with the blackboard surface 1; flushing channels 5 connected to the water circulation system are provided on both sides of the scrubbing flexible strip 3; a slide rail is provided on the frame of the blackboard surface 1, a slider 6 on the slide rail is connected to the corresponding end of the movable frame 2, the transmission system is connected to the slider 6, and drives the scrubbing movable device to move along the frame of the blackboard surface 1.

[0021] The movable frame 2 is arranged vertically and moves left and right along the blackboard surface 1; the water circulation system includes a water pump 11, a solenoid valve 12, a flushing channel 5 and a water tank 13; the water tank 13 is located directly below the blackboard surface 1, the water inlet pipe of the water pump 11 is connected to the water tank 13, and the water outlet pipe of the water pump 11 is connected to the flushing channel 5 through the solenoid valve 12. Figure 4 As shown, a filter device 14 is provided in the water tank 13, and the water inlet pipe of the water pump 11 is inserted into the filter device 14 to prevent impurities from entering the water pump 11. The filter device 14 adopts a mesh structure covering the surface of the water tank 13 or a box-type mesh structure placed in the water tank 13.

[0022] The water inlet of the flushing channel 5 is located at the top of the movable frame 2 and fits with the blackboard surface. The water flows downward along the blackboard surface 1 and flows into the water tank 13. There are four flushing channels 5, which are respectively located on both sides of the wiper strip 4. The flushing channels are numbered as channel A, channel B, channel C and channel D from left to right. The four flushing channels are merged into two groups of parallel pipelines at the top. Channel A, channel B and channel C are one group, and channel B, channel C and channel D are one group. These two groups of pipelines are connected to the water outlet of the water circulation system through the solenoid valve 12 respectively.

[0023] The transmission system includes a transmission motor 21, a transmission chain 22 and a sprocket 23. Six sprockets 23 are respectively arranged at the four corners of the blackboard. The sprockets 23 support the transmission chain 22 to form an inner and outer double-layer structure, and the two-layer transmission chain 22 is a closed U-shaped transmission structure. The output shaft of the transmission motor 21 is connected to one of the sprockets 23 and drives the entire transmission chain to move; the slider 6 on one side of the mobile frame 2 is connected to the outer transmission chain 22, and the slider 6 on the other side of the mobile frame 2 is connected to the inner transmission chain 22. Travel switches 24 are respectively arranged at the two extreme positions of the movement of the mobile frame 2 to ensure that the operation stops at the extreme positions.

[0024] The working process of the water-washing blackboard of the present application is as follows: in order to facilitate the control of start and stop, a left-washing button, a right-washing button and a stop button are provided at the end of the blackboard. When it is necessary to move to the left to scrub the blackboard, the left-washing button is activated, the motor 21 is started to rotate counterclockwise, and the mobile frame 2 is driven to move to the left. At the same time, channel A, channel B and channel C are opened by the corresponding electromagnetic valve 12, and the corresponding flushing channel 5 flows downward along the blackboard surface 1 from the upper end. Channel A rinses the blackboard, and the scraper strip 4 on the left scrapes and washes. Channel B rinses the blackboard again and erases the handwriting by scrubbing the flexible strip 3. Channel C rinses the blackboard for the last time, and the water stains are completely scraped dry by the scraper strip 4 on the right. After one to three minutes, the blackboard is clean as new. If a fixed position is required to stop, press the stop button. When scrubbing the blackboard in the opposite direction, the right-washing button is activated, the motor 21 is started to rotate clockwise, and the mobile frame 2 is driven to move to the right. At the same time, channels B, C and D are opened by the corresponding electromagnetic valves 12, and the corresponding flushing channels 5 flow water downward from the upper end along the blackboard surface 1. Channel D flushes the blackboard, and the wiper strip 4 on the right side scrapes and washes. Channel C flushes the blackboard again and erases the handwriting by scrubbing the flexible strip 3. Channel B flushes the blackboard for the last time, and completely scrapes the water stains by the wiper strip 4 on the left side. After one to three minutes, the blackboard is as clean as new. According to the usage, water is regularly added, the filter material is updated, and the flexible strip 3 and the wiper strip 4 are scrubbed.

Claims

1. A water-washable blackboard, characterized in that: The invention comprises a blackboard surface (1), a transmission system, a water circulation system and a scrubbing mobile device; wherein the scrubbing mobile device comprises a moving frame (2), a scrubbing flexible strip (3) and a wiper strip (4); the scrubbing flexible strip (3) is located in the middle of the moving frame (2); two wiper strips (4) are respectively located on both sides of the scrubbing flexible strip (3); the scrubbing flexible strip (3) and the wiper strip (4) are respectively in contact with the blackboard surface (1); flushing channels (5) connected to the water circulation system are provided on both sides of the scrubbing flexible strip (3); a slide rail is provided on the frame of the blackboard surface (1); a slider (6) on the slide rail is connected to the corresponding end of the moving frame (2); the transmission system is connected to the slider (6) and drives the scrubbing mobile device to move along the frame of the blackboard surface (1).

2. The water-washable blackboard according to claim 1, characterized in that: The movable frame (2) is arranged vertically and moves left and right along the blackboard surface (1); the water circulation system comprises a water pump (11), a solenoid valve (12), a flushing channel (5) and a water tank (13); the water tank (13) is located directly below the blackboard surface (1); the water inlet pipe of the water pump (11) is connected to the water tank (13); and the water outlet pipe of the water pump (11) is connected to the flushing channel (5) via the solenoid valve (12).

3. The water-washable blackboard according to claim 2, characterized in that: A filtering device (14) is provided in the water tank (13), and a water inlet pipe of the water pump (11) is inserted into the filtering device (14).

4. The water-washable blackboard according to claim 2, characterized in that: The water inlet of the flushing channel (5) is located at the top of the movable frame (2) and is in contact with the blackboard surface. The water flows downward along the blackboard surface (1) and flows into the water tank (13).

5. The water-washable blackboard according to claim 4, characterized in that: The number of the flushing channels (5) is four, and they are located on both sides of the wiper strip (4). The flushing channels are numbered from left to right as channel A, channel B, channel C and channel D. The four flushing channels are combined into two groups of parallel pipelines at the top. Channel A, channel B and channel C form one group, and channel B, channel C and channel D form another group. The two groups of pipelines are connected to the water outlet of the water circulation system through solenoid valves (12).

6. The water-washable blackboard according to claim 1, characterized in that: The transmission system comprises a transmission motor (21), a transmission chain (22) and a sprocket (23). Six sprockets (23) are respectively arranged at the four corners of the blackboard. The sprockets (23) support the transmission chain (22) to form an inner and outer double-layer structure, and the two-layer transmission chain (22) forms a closed U-shaped transmission structure. The output shaft of the transmission motor (21) is connected to one of the sprockets (23) and drives the entire transmission chain to move. The slider (6) on one side of the moving frame (2) is connected to the outer transmission chain (22), and the slider (6) on the other side of the moving frame (2) is connected to the inner transmission chain (22).

7. The water-washable blackboard according to claim 6, characterized in that: Travel switches (24) are respectively arranged at two extreme positions of movement of the movable frame (2).

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