KR20040092070A - Electromotion Board Eraser - Google Patents

Abstract

PURPOSE: An electronic chalkboard eraser is provided to prevent chalk powder from drifting into the air by efficiently adsorbing the chalk powder marked on the chalkboard and collecting the adsorbed chalk powder in a collecting member, thereby reducing floating chalk powder which is harmful to health of both teachers and students. CONSTITUTION: The electronic chalkboard eraser(1) comprises: a housing(10) having an operating switch(12), a receiving chamber(11), and a power supply(14); a receiving box(30) combined with the housing(10) and having a receiving space(32) and chalk adsorbing holes(31) formed on the bottom of the receiving box(30); a driving motor(M) connected with a power supply(13) to rotate as the operating switch(12) operates; a chalk brushing member(20) connected with the driving motor(M) and having a portion projecting from the chalk adsorbing holes(31) so as to brush and adsorb the chalk powder stuck on a chalkboard; a suction motor(M') installed in the receiving chamber (11); an adsorbing impeller(34) axially connected to the suction motor(M') and rotating; a dust collecting member(33) detachably installed in the receiving box(10) and having a chalk input portion(33a) provided at its one side, and a dust collecting chamber(33b) for collecting input chalk powder; and a check valve(35) installed at the chalk input portion(33a).

Description

Electric Blackboard Eraser {Electromotion Board Eraser}

The present invention relates to an electric blackboard eraser that can effectively remove the chalk powder on the blackboard, more specifically, the chalk powder that can be generated while the education contents written on the blackboard through the chalk to perform a new writing. It is invented to prevent the damages of the educator and the trainees in advance.

Generally, a blackboard, also called a blackboard, is a wide board painted with chalk so that the writing can be performed with chalk, and the blackboard can be used to deliver the contents of the education to the trainees.

In other words, it is possible to clearly write the educational contents necessary for learning through chalk on the blackboard, thereby clearly conveying the educational contents to the trainees.

On the other hand, the handwriting of the blackboard after the learning is completely erased through the blackboard eraser so that the new educational contents can be written.

The blackboard eraser to erase the handwriting is made of a fiber material to effectively erase the chalk powder on the board, a thick paper is attached to the upper portion of the fiber material is not easily deformed, the inside is filled with cotton.

Therefore, the existing educational contents that were written on the blackboard through chalk can be effectively erased through the blackboard eraser configured as described above, and thus new writing of the educational contents could be made.

On the other hand, the handwriting of the blackboard after the learning is completely erased through the blackboard eraser so that the new educational contents can be written.

The conventional blackboard eraser configured as described above has been used for a long time in the educational field because it is light in weight and can be manufactured at low cost, but it can cause the scattering of chalk powder during the erasing process, thus improving the health of educators and trainees. There were problems such as serious threats.

These chalk powders are a problem because scattering chalk powders can irritate the mucous membranes of the nose, which can be very harmful to people with allergic sensitivities.

That is, the fiber material and cotton constituting the blackboard eraser has a problem such that it can absorb only a small amount of chalk powder among the erased chalk powder, causing damage caused by unabsorbed chalk powder.

In addition, there was a problem in that the blackboard eraser was used in the process of erasing the educational content, the chalk powder is buried, and if the reuse is necessary, the process of removing the chalk powder may require inconvenience.

In addition, the fiber material and paper constituting the blackboard eraser can be easily damaged when the use is made for a long time, and may result in additional purchase costs. If the spare blackboard eraser is not provided, the contents of the education written on the blackboard There was also a discontinuity such that the learning effect could be significantly reduced.

Therefore, an object of the present invention is to solve the problems as described above to prevent the damage caused by the chalk powder in advance, as well as to enable the ease of use and continuous use.

An object of the present invention is to provide an electric blackboard eraser that can effectively minimize the damage of the educator and trainees by the chalk powder scattered by effectively adsorbing the chalk powder on the blackboard.

Another object of the present invention is to provide an electric blackboard eraser that can easily handle the adsorbed chalk powder to prevent inconvenience caused by reuse.

Still another object of the present invention is to provide an electric blackboard eraser capable of minimizing damage and damage caused by long-term use, thereby preventing the occurrence of costs and the deterioration of learning effects caused by additional purchase.

1 is a cross-sectional view showing the configuration and operation of the electric blackboard eraser of the present invention.

Figure 2 is a bottom view showing the configuration of the electric blackboard eraser of the present invention.

Figure 3 is a partially enlarged cross-sectional view showing the configuration of the chalk hair member provided in the interior of the present invention.

Figure 4 is a perspective view showing that the heat discharge hole is formed in the electric blackboard eraser of the present invention.

Explanation of symbols on the main parts of the drawings

10-housing 11-storage room

12-Operation Switch 14-Power Supply

15-Heat exhaust hole 16-Crimping member

20-chalk strip 21-casing

22-Brush member 30-Storage box

31-Chalk suction hole 32-Storage area

33-Dust Collector 33a-Chalk Inlet

33b-Dust Collector 34-Suction Impeller

35-Check Valve M-Drive Motor

M '-Suction Motor

The present invention for achieving the above object, the operation switch is provided on one side of the upper, a housing is formed in the inside, and one side is provided with a power supply;

A storage box coupled to the housing and having an accommodation space formed therein and a chalk suction hole formed at a bottom thereof;

A drive motor associated with a power supply unit to be rotated by the operation of the operation switch;

A chalk furnishing member connected to the driving motor, the chalk furnishing member having one side protruding from the bottom surface of the housing so as to be absorbed by the chalk dust on the board;

A suction motor installed in the storage chamber and movable;

A suction impeller axially coupled to the suction motor to rotate;

A dust collecting member detachably installed at a lower side of the housing, having a chalk input portion through which chalk powder is input, and a dust collecting member having a dust collecting chamber configured to collect the chalk powder;

It consists of a check valve installed in the chalk input section.

Therefore, when the present invention is brought into contact with a blackboard with chalk powder after operating the operation switch provided in the housing, the chalk hair member connected to the driving motor rotates while adsorbing chalk powder while being in close contact with the blackboard through the pressing member. Done.

Then, the adsorbed chalk powder passes through the chalk input unit through the suction impeller connected to the suction motor and then is supplied to the dust collecting member, and the dust collecting member with a predetermined amount of chalk powder is removed from the housing to remove the chalk powder from the inside. It is possible to prevent the scattering of chalk powder, which can threaten the health of educators and trainees.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the configuration and operation state of the electric blackboard eraser of the present invention, a chalk hair removal member is installed on the lower portion for adsorbing the chalk powder buried on the blackboard, the dust collected by the chalk hair removal dust collector The suction impeller for supplying the member shows the overall configuration of the present invention installed on one side and the dust collecting process through the chalk powder.

Figure 2 is a bottom view of the configuration of the present invention, the lower part of the present invention is provided with a chalk hair removal member for adsorbing the chalk powder buried on the blackboard, one side of the filtering the chalk powder adsorbed through the chalk hair member It is shown that the filter portion for attaching.

Figure 3 is a partially enlarged cross-sectional view of the configuration of the chalk hair member provided in the interior of the present invention, the lower portion of the casing rotatably coupled to the drive shaft connected to the drive motor brush for adsorbing the chalk powder on the blackboard The member is shown to be coupled inwardly along the guide tube formed in the casing.

Figure 4 is a perspective view showing that the heat discharge hole is formed in the electric blackboard eraser of the present invention, the heat discharge hole for discharging the heat generated in the suction motor and the drive motor to the outside in the present invention equipped with an operation switch on the upper one side It is formed, and the bottom surface has been shown that a plurality of wheel members are coupled to freely move the present invention pressed on the blackboard.

That is, as shown in Figures 1 to 2, the storage compartment 11 having a predetermined size is formed therein, the bottom surface is provided with the operation switch 12 on the upper side of the housing 10 formed to open to the outside In addition, the internal storage chamber is provided with a controller 13 driven by the on / off operation of the operation switch 12.

At this time, the housing 10 is provided with such a controller 13 may be composed of a single body in which the storage chamber 11 is formed, but it is preferable to separate and form the housing 10.

This is to increase the convenience of assembling and disassembling the electric blackboard eraser 1, and when the housing 10 is formed separately, the malfunctioning or inoperable parts can be easily repaired and replaced.

In addition, a power supply unit 14 for supplying a current to the driving motor M and the suction motor M 'to be described later is installed at one side of the housing 10.

As shown in FIG. 1, the power supply unit 14 supplies an external current through a wire, but the basic configuration is used in the present invention. In addition, the power supply unit accommodates a battery, which is a primary battery, in the storage chamber 11. (14) can also be used.

That is, the education place equipped with a connection terminal on a wall or the like is used by connecting the power supply unit 14 to this connection terminal, and in the education place where the connection terminal is not provided or where the short-term use is performed, It will be used to accommodate.

On the other hand, inside the housing 10 configured as described above is driven by the on / off operation of the operation switch 12 is connected to the power supply unit 14 and the wires omitted by the controller 13, respectively, the drive motor ( M) is installed, the lower part of the drive motor (M) is coupled to the chalk hair member 20 for adsorbing the chalk powder buried on the blackboard rotatably in one state protruding on the bottom surface of the housing (10). do.

The chalk hair removal member 20 is a combination of a brush member 22 that can be adsorbed by shaking the chalk powder to the hollow casing 21 of the hollow, so as to be rotated in the same direction as the drive motor (M '). It is connected to the drive motor (M) through a power transmission member 23 made of elements such as belts and chains.

That is, the driving motor M and the chalk curling member 20 are connected to the driving shaft 24 at the center of the casing 21 by the shaft, and the driving shaft 24 and the driving motor M are each flipped ( 25) is installed to the power transmission member 23 is fastened to the pliers (25).

At this time, the upper end of the drive shaft 24 is fixed to the housing 10 through the flange 26, it is preferable that the bearing 27 is installed between the fleece 25 and the casing (21).

This is to prevent the top of the drive shaft 24 from shaking in the process of transmitting the rotational force of the driving motor M to the casing 21 through the power transmission member 23, and the fleece 25 and the casing ( The bearing 27 is installed between the 21 to allow the chalk curling member 20 to be smoothly rotated along the rotation of the driving motor (M).

Here, the chalk hair removal member 20 of this configuration, as shown in Figure 3, it is preferable that the brush member 22 provided on the bottom is configured to be drawn into the hollow casing 21 as needed.

To this end, a lower portion of the casing 21 is formed to be open, and a plurality of guide tubes 21a are formed to protrude downward, and guides drawn inward along the guide tube 21a to the lower portion of the casing. The plate 22a is joined.

An elastic member 20a is mounted between the guide plate 22a and the casing 21, and a brush member 22 is attached to the bottom surface of the guide plate 22a to shake off the chalk powder on the board. Will be.

Therefore, when the guide plate 22a coupled to the guide member 21a to the guide tube 21a is coupled to the guide plate 22a through a fixture made of elements such as a washer and a bolt while being supported by the elastic member 20a, The brush member 22 is freely drawn into the casing 21 according to the adhesion of the electric blackboard eraser 1 to be in close contact, thereby effectively absorbing the chalk powder on the board.

In addition, the chalk hair removal member 20 of this configuration is to be installed on the lower side of the housing 10 in order to absorb the chalk powder buried on the blackboard, by directly installing the chalk hair removal member 20 to the housing 10 Although not shown, the chalk powder adsorbed through the brush member 22 separates the drive motor M for rotating the chalk hair member 20 and the suction motor M ', which will be described later, to prevent malfunction. It is preferable to be installed in the housing 10 through the holder 30 of the.

That is, when the chalk suction hole 31 is formed at the bottom surface, and the chalk curling member 20 is coupled to the storage box 30 in which the storage space part 32 is formed, it is connected to the driving motor M. Although the chalk powder adsorbed through the brush member 22 is unexpectedly scattered in the adsorption process, it is possible to block in advance the penetration of the driving motor M and the suction motor M 'installed inside the housing 10. .

On the other hand, one side of the storage space portion 32 is provided with a chalk hair removal member 20 is formed with a chalk inlet 33a on one side so as to collect the chalk powder adsorbed through the brush member 22, In the dust collecting member 33 having a dust collecting chamber (33b) for collecting the input dust is installed detachably.

In addition, an upper portion of the dust collecting member 33 is provided with a suction impeller 34 that sucks ambient air to guide chalk dust to the dust collecting member 33, and the suction impeller 34 has a power supply unit 13 and It is coupled to the suction motor (M) is rotated by the on / off operation of the operation switch 11 is linked by the wires, which are respectively omitted in the controller (11a).

In this case, a check valve 35 is installed in the chalk input part 33a formed in the dust collecting member 33, and the dust collected in the upper surface of the dust collecting chamber 21 is blocked from being supplied to the suction impeller 14. The filter unit 37 to which the filter medium 36 is attached is installed to allow the filter unit 36 to be attached thereto.

In addition, a plurality of heat discharge holes 15 may be discharged to a side of the housing 10 in which the suction motor M 'is installed so as to discharge heat generated from the suction motor M' and the driving motor M to the outside. ) Is formed.

Therefore, the chalk dust collected in the dust collecting box 20 and the foreign matter adsorbed with the chalk powder are blocked by the filter medium 24 attached to the filter unit 23 so that only pure air is introduced into the housing 10. The heat of the driving motor (M) and the suction motor (M ') rotated to adsorb the chalk powder is discharged to the outside through the heat discharge hole (15) to prevent malfunction due to high heat. Will be.

In addition, the cover member 38 is detachably coupled to the bottom surface of the storage box 30 in which the dust collecting member 33 is accommodated therein, so that the chalk powder buried on the blackboard may be absorbed only through the brush member 22. Will be.

In addition, the bottom edge portion of the housing 10 is attached to the pressing member 16 so as to be in close contact with the electric blackboard eraser 1 of the present invention on the blackboard, there can be used a variety of as the pressing member 34, In the present invention, it is composed of woven paper.

Therefore, when the electric blackboard eraser 1 configured as described above is sequentially assembled and operated to operate the operation switch 12 provided at the upper portion of the housing 10, a controller driven by the operation of the operation switch 11. The driving motor M and the suction motor M 'associated with the power supply unit 14 and the power supply unit 14 are rotated, and the suction impeller 34 and the chalk curling member 20 are rotated by this rotation. .

In addition, when the chalk board member 20 and the suction impeller 34 are in contact with the blackboard while the electric blackboard eraser 1 of the present invention is being rotated, the electric blackboard eraser 1 is the housing 10. Through the pressing member 34 attached to the bottom of the completely adhered to the blackboard, the chalk powder buried in the blackboard by this adhesion is to be adsorbed to the brush member 40b coupled to the bottom of the chalk hair member 40. .

At this time, the brush member 22 which shakes out the chalk powder is adsorbed into the casing 21 while compressing the elastic member 20a along the guide tube 21a according to the adhesion state of the electric blackboard eraser 1. Chalk powder can be supplied to the dust collecting member 33 installed on one side thereof.

In addition, through this, only one side may be drawn into the casing 21 according to the surface state of the blackboard, so that the chalk powder buried on the blackboard can be effectively shaken and adsorbed, and the brush member 22 that has been adsorbed is completed. Is returned to its original position by the compressed elastic member 20a.

On the other hand, as shown in Figure 4, when the holding hole 17 penetrating the body as shown in the housing 10, the electric blackboard eraser 1 of the present invention can be easily gripped by the user to use, the housing Attaching a plurality of wheel members 18 to the bottom of the outer peripheral surface of 10, it is possible to freely move the present invention in close contact with the blackboard.

Then, when the magnet body 39 is attached to the inner surface of the cover member 38 closing the storage space 32 formed in the storage box 30, the present invention is completely in close contact with the metal board Adsorption of chalk powder can be made more easily, even if the electric blackboard eraser (1) by mistake in the adsorption process of the chalk powder can be prevented from falling to the floor of the educational place in advance.

Therefore, when the chalk powder is adsorbed through the electric blackboard eraser 1 configured as described above, the adsorbed chalk powder is sucked through the suction impeller 34 which is being rotated through the suction motor M '. ) And the chalk input part 33a sequentially pass through the dust collecting chamber 33b.

Here, the backflow of the chalk powder which may be generated in the process of adsorbing the chalk powder through the rotation of the suction impeller 14 may be prevented through the check valve 35 installed in the chalk input part 33.

In addition, the dust collecting member 33 in which a predetermined amount of chalk dust is collected is removed from the storage box 30 to discharge the chalk powder to the outside and then remounted.

Therefore, through the electric blackboard eraser 1 of the present invention configured as described above it is possible to provide a pleasant education place to educators and trainees.

According to the configuration of the present invention as described above, the chalk powder written on the blackboard is effectively absorbed through the chalk whisk member driven by the drive motor and then collected by the dust collecting member through the suction impeller rotated by the suction motor, thereby making the chalk It is possible to prevent the scattering of the powder in advance, thereby minimizing the damage of the educators and the trainees.

In addition, since the dust collecting member to which the adsorbed chalk powder is collected is detachable and detachable, it is possible to easily handle the chalk powder to prevent inconvenience due to reuse.

In addition, since the brush member adsorbing such chalk powder is configured to be retractable into the inside of the chalk hair member, it is possible to effectively absorb the chalk powder buried regardless of the surface state of the blackboard, and the magnet attached to the inner surface of the cover member. Through the sieve, it is possible to prevent the electric blackboard eraser from being accidentally damaged by the user.

Therefore, it is a very useful invention that can contribute to the profit generation of the producer through the improvement of the reliability of the product.

Claims (4)

A housing 10 having an operation switch 12 at an upper side thereof, a storage chamber 11 formed therein, and a power supply unit 14 at one side thereof; A storage box 30 coupled to the housing 10 and having an accommodation space 32 formed therein and a chalk suction hole 31 formed at a bottom thereof; A drive motor (M) associated with the power supply unit (13) so as to be rotated by the operation of the operation switch (12); A chalk furnishing member 20 connected to the driving motor M and installed at one side thereof to protrude into the chalk adsorption hole 31 so as to absorb and adsorb the chalk dust on the board; A suction motor (M ') installed and operated in the storage chamber (31); A suction impeller 34 axially coupled to the suction motor M 'and rotated; The dust collecting member (2) is detachably installed in the storage box (10), and a chalk input part (33a) into which chalk powder is input is formed at one side thereof, and a dust collecting chamber (33b) is formed therein to collect the input chalk powder. 33); Electric blackboard eraser, characterized in that consisting of a check valve 35 installed in the chalk input portion (33a). The method of claim 1, wherein the chalk furnishing member 20 has a lower portion is formed to open, the inside of the casing 21 is formed so that the guide tube (21a) protrudes to the lower side and connected to the drive motor (M); A guide plate (22a) coupled to the lower portion of the casing (21) to be retractable into the inside through the guide tube (21a); An elastic member 20a mounted between the casing 21 and the guide plate 22a; Electric blackboard eraser, characterized in that consisting of a brush member 22 attached to the bottom of the guide plate (22a). The heat discharge hole 15 is formed on one side of the housing 10 to discharge heat generated from the driving motor M and the suction motor M 'to the outside. Electric blackboard eraser, characterized in that the pressing member 16 is provided on the bottom of the housing (10). The method according to claim 1, wherein the cover member 38 is detachably coupled to the lower portion of the housing 10, and the magnet body 39 is attached to the inside of the cover member 38. Blackboard Eraser.