Electric dust collection blackboard eraser special for teaching

Abstract

The invention relates to the field of teaching aids, in particular to a special electric dust collection blackboard eraser for teaching, which comprises a host and a blackboard eraser box, a power mechanism, a dust collection mechanism and a power supply mechanism are arranged in the main machine; the power mechanism comprises a microcontroller, a motor and a fan, the microcontroller is connected with the motor, an output shaft of the motor is connected with the fan, and the dust collection mechanism comprises a dust collection box; the edge of the blackboard eraser box is provided with a skirt edge, a plurality of cotton erasers are fixedly arranged on the inner side of the blackboard eraser box, spacing areas are arranged among the cotton erasers, and the plurality of spacing areas are communicated with one another to form a unified airflow channel. According to the electric dust collection blackboard eraser special for teaching, in the blackboard erasing process, chalk dust can be sucked into the dust collection box in time through suction force generated by the fan, flying of the chalk dust in air is greatly reduced, the teaching environment is effectively improved, and the body health of teachers and students is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of teaching aids, and particularly to a special teaching electric dust-absorbing blackboard eraser. Background Art

[0002] In the traditional teaching process, the blackboard is widely used as an important teaching tool. However, when teachers wipe the blackboard, a large amount of chalk dust will fly, which not only pollutes the teaching environment, but also has a serious impact on the physical health of teachers and students if they inhale chalk dust for a long time, such as causing respiratory diseases. Although some existing blackboard erasers have improved the wiping effect to a certain extent, most of the treatment of chalk dust still uses simple methods such as patting, and the problem of chalk dust pollution cannot be fundamentally solved. Therefore, it is of great practical significance to propose a special teaching blackboard eraser that can automatically absorb chalk dust during the process of wiping the blackboard and is safe and environmentally friendly. Summary of the Invention

[0003] In view of the above deficiencies in the prior art, the present invention provides a special teaching electric dust-absorbing blackboard eraser with reasonable structural design and convenient promotion.

[0004] A special teaching electric dust-absorbing blackboard eraser includes a main body and a blackboard eraser box;

[0005] The interior of the main body includes a power mechanism, a dust collection mechanism and a power supply mechanism;

[0006] The power mechanism includes a microcontroller, a motor and a fan. The microcontroller is connected to the motor. The output shaft of the motor is connected to a fan. One end of a hose is connected to the air inlet of the fan, and the other end of the hose is connected to the air outlet of the fan;

[0007] The dust collection mechanism includes a dust collection box. The other end of the hose is hermetically connected to the dust collection box; an openable door is provided on the main body, and the dust collection box is arranged inside the door;

[0008] A skirt is provided at the edge of the blackboard eraser box. A plurality of cotton erasers are fixedly arranged inside the blackboard eraser box. There are spacer areas between the cotton erasers. The plurality of spacer areas communicate with each other to form a unified air flow channel; the other end of the hose is fixed to the bottom of the blackboard eraser box and communicates with the spacer area.

[0009] Preferably, the power supply mechanism includes a storage battery and a power display lamp. The storage battery is arranged inside the main body. The storage battery is connected to the microcontroller and the motor. The power display lamp is installed outside the housing of the main body.

[0010] Preferably, screw holes for fixing on the wall are respectively provided at the upper and lower parts of the main body.

[0011] Preferably, a start switch is provided on the side of the eraser box, and an electrical connection is established between the start switch and the microcontroller. When the start switch is triggered, the motor is started through the microcontroller, thereby realizing the start-up process of the entire dust-absorbing eraser.

[0012] Preferably, the cotton eraser is detachable and replaceable.

[0013] Preferably, the skirt is made of a flexible material and closely adheres to the blackboard panel.

[0014] The beneficial effects of the present invention are as follows:

[0015] During the process of erasing the blackboard with the electric dust-absorbing eraser for teaching of the present invention, the suction force generated by the fan can timely suck the chalk dust into the dust collection box, greatly reducing the flying of chalk dust in the air, effectively improving the teaching environment, and ensuring the physical health of teachers and students.

[0016] The overall structure is reasonably designed, and each component works in coordination, making the operation convenient. The setting of the start switch enables the user to easily turn on and off the dust-absorbing function, and the power display lamp is convenient for understanding the power. The detachable and replaceable cotton eraser prolongs the service life of the eraser and reduces the use cost. The design of the flexible skirt further improves the dust-absorbing effect and reduces the leakage of chalk dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic internal structure diagram of the present invention;

[0019] Figure 2 It is a front external view of the present invention;

[0020] Figure 3 It is a three-dimensional structure diagram of the main body of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0023] In addition, if terms such as "horizontal", "vertical", "hanging" are used, it does not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] As shown in the figure, a special electric dust-absorbing board eraser includes a main body 1 and a board eraser box 2.

[0025] Internal structure of the main body:

[0026] Power mechanism: The power mechanism includes a microcontroller, a motor 3 and a fan 4. The microcontroller is connected to the motor 3, and the output shaft of the motor 3 is connected with a fan 4. The air inlet of the fan 4 is connected with a hose 5, and the air outlet is connected with a hose 6. When the motor 3 is started under the control of the microcontroller, it drives the fan 4 to rotate. The rotation of the fan 4 generates suction, sucks the air and chalk dust at the board eraser box 2 through the hose 5, and then blows it out through the hose 6.

[0027] Dust collection mechanism: The dust collection mechanism includes a dust collection box 7, and the other end of the hose 6 is hermetically connected to the dust collection box 7. An openable door 8 is provided on the main body 1, and the dust collection box 7 is arranged inside the door 8. The blown air with chalk dust enters the dust collection box 7, and the dust collection box 7 can filter and collect the chalk dust. The setting of the door 8 facilitates the replacement and cleaning of the dust collection box 7.

[0028] Power supply mechanism: The power supply mechanism includes a storage battery 12 and a power quantity display lamp 13. The storage battery 12 is arranged inside the main body 1, is connected to the microcontroller and the motor 3, and provides power support for the whole dust-absorbing board eraser. The storage battery 12 is detachable, equipped with a special charger, and the storage battery 12 can be taken out for charging; two storage batteries are provided for alternating use. The power quantity display lamp 13 is installed outside the housing of the main body 1, which is convenient for the user to know the power quantity of the storage battery 12 at any time so as to charge in time.

[0029] Eraser box structure: A flexible skirt 9 is provided at the edge of the eraser box 2. A plurality of cotton erasers 10 are fixedly arranged inside the eraser box 2. There are spacer areas 11 between the cotton erasers 10, and the plurality of spacer areas 11 communicate with each other to form a unified air flow channel. The other end of the first hose 5 is fixed to the bottom of the eraser box 2 and communicates with the spacer area 11. The flexible skirt 9 can form a good seal when the eraser box 2 contacts the blackboard, reducing the escape of chalk dust from the edge. When the fan 4 generates suction, air and chalk dust enter through the spacer area 11 between the cotton erasers 10 and are sucked into the main unit 1 through the first hose 5.

[0030] Screw holes 14 for fixing to the wall are provided above and below the main unit 1, facilitating the fixing of the main unit 1 at a suitable position on the classroom blackboard for easy use.

[0031] A start switch 15 is provided on the side of the eraser box 2, and an electrical connection is established between the start switch 15 and the microcontroller. When the start switch 15 is triggered, the motor 3 is started through the microcontroller, thereby realizing the start-up process of the entire dust-absorbing eraser, and the operation is simple and convenient.

[0032] The cotton eraser 10 is detachable and replaceable. When the cotton eraser 10 is worn or soiled after being used for a period of time and affects the wiping effect, it can be easily replaced to ensure the cleaning effect of the eraser.

[0033] When the blackboard needs to be erased, pick up the eraser box 2 and press the start switch 15 on the side of the eraser box 2. At this time, the microcontroller receives the signal and starts the motor 3. The motor 3 drives the fan 4 to rotate and generate suction.

[0034] The teacher holds the eraser box 2 by hand and brings the cotton eraser 10 inside the eraser box 2 into contact with the blackboard to start erasing the blackboard. During the erasing process, chalk dust enters through the spacer area 11 between the cotton erasers 10 with the air and is sucked into the main unit 1 through the first hose 5, and then enters the dust collection bag 7 through the second hose 6.

[0035] The teacher can understand the power level of the storage battery 12 by observing the power display lamp 13 outside the housing of the main unit 1. When the power level is low, charge the storage battery 12 in time.

[0036] The above are only the preferred embodiments of the present invention patent and are not intended to limit the present invention patent. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention patent shall be included within the protection scope of the present invention patent.

Claims

1. A special electric vacuum eraser for teaching, characterized in that: It comprises a host (1) and an eraser box (2); The main unit (1) includes a power mechanism, a dust collection mechanism and a power supply mechanism; The power mechanism comprises a microcontroller, a motor (3) and a fan (4), wherein the microcontroller is connected to the motor (3), the output shaft of the motor (3) is connected to the fan (4), the air inlet of the fan (4) is connected to a hose 1 (5), and the air outlet of the fan (4) is connected to a hose 2 (6); The dust collecting mechanism comprises a dust collecting box (7), and the other end of the second hose (6) is sealedly connected to the dust collecting box (7); the main machine (1) is provided with an openable door (8), and the dust collecting box (7) is arranged in the door (8); The edge of the eraser box (2) is provided with a skirt (9), a plurality of cotton wipers (10) are fixedly arranged on the inner side of the eraser box (2), a plurality of spacers (11) are arranged between the cotton wipers (10), and the plurality of spacers (11) are interconnected to form a unified air flow channel; the other end of the hose (5) is fixed to the bottom of the eraser box (2) and is communicated with the spacers (11).

2. The electric vacuum eraser for teaching according to claim 1, characterized in that: The power supply mechanism comprises a storage battery (12) and a power indicator light (13); the storage battery (12) is arranged inside the host (1); the storage battery (12) is connected to the microcontroller and the motor (3); and the power indicator light (13) is installed outside the housing of the host (1).

3. The electric vacuum eraser for teaching according to claim 1, characterized in that: The main unit (1) is provided with screw holes (14) at the top and bottom for fixing on a wall.

4. The electric vacuum eraser for teaching according to claim 1, characterized in that: A start switch (15) is provided on the side of the eraser box (2), and an electrical connection is established between the start switch (15) and the microcontroller. When the start switch (15) is triggered, the motor (3) is started by the microcontroller, thereby realizing the working start flow of the entire dust collection eraser.

5. The electric vacuum eraser for teaching according to claim 1, characterized in that: The cotton wipe (10) is detachable and replaceable.

6. The electric vacuum eraser for teaching according to claim 1, characterized in that: The skirt (9) is made of a flexible material, and the skirt (9) is in close contact with the blackboard panel.

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