KR20000001128A - Cleaning blackboard - Google Patents

Abstract

PURPOSE: A cleaning blackboard is provided to enhance the quality of the product and the efficiency by making an erase of a blackboard surface in a short time possible and preventing from the arsenic acid of a chalk powder. CONSTITUTION: A cleaning blackboard comprises: a blackboard(10) having an open part(12) on the blackboard protection frame(11) to expose a writing surface(13); a cleaning member(20) installed outside of a support pipe(21) to clean the writing surface; a motive power gear(41) supported by a motor spindle(43) to rotate the cleaning member; and a rotation part(40) installed on the base of the motive power motor and having a first gear(44).

Description

Cleaning blackboard

The present invention relates to a cleaning blackboard, and more specifically, to one side of the blackboard to move laterally by a motor drive to install a cleaning device that can wipe the blackboard surface written in chalk on the blackboard, the blackboard in a short time The surface can be cleaned, and it is invented to prevent the scattering of chalk powder.

In general, when a user writes on a blackboard and needs to erase the previous writing in order to write another content, a sewing eraser made of cloth is usually used.

In general, the board used for writing requires careful consideration to prevent the scattering of chalk powder when writing letters written on the writing surface are erased.

The conventional chalk eraser configured as described above has a problem in that the chalk powder is scattered when the blackboard is erased, which not only greatly threatens the health of the respiratory system of the blackboard user, but also needs to shake off the chalk powder on the chalk eraser on clothes and sleeves.

In addition, the harmful environment was created for the school teachers and instructors who must use the blackboard at all times, as well as the harmful students and students.

And because the surface of the raw steel plate of the board is not a perfect smooth surface but has a constant surface roughness to prevent the sliding of the chalk, write the chalk on the steel plate (writing member). When the chalk particles are adsorbed on the minute irregularities of the writing member, it is difficult to clean the cloth with a chalk eraser, and the erased traces remain, resulting in a poor appearance.

An object of the present invention is to install a cleaning device that can move sideways by motor drive on one side of the blackboard and wipe the blackboard surface written in chalk on the blackboard, can wipe the blackboard surface in a short time, the scattering of chalk powder To provide a cleaning blackboard that can be prevented.

Another object of the present invention to provide a cleaning blackboard that can improve the merchandise and convenience.

Figure 1 is a perspective view of the use state showing the shape and the state of use of the present invention cleaning blackboard.

Figure 2 is a partially cut away cross-sectional view showing the internal shape of the cleaning roller provided on one side of the cleaning blackboard of the present invention.

3 is an enlarged perspective view of a main portion showing the shape of the cleaning roller;

Figure 4 is an enlarged perspective view of the main portion showing the shape of the gear portion to be driven while driving the cleaning roller.

Figure 5 is a side view showing a state in which the cleaning roller is moved laterally by the gear portion at the top of the blackboard.

Explanation of symbols on the main parts of the drawings

10-Blackboard 20-Cleaning Part

30-guide part 40-rotating part

50-transfer section 60-dust collector

70-switch part 80-guide roller

90-bearing

An object of the present invention, the blackboard 10 to expose the writing surface 13 by opening the opening portion 12 toward the predetermined front to the blackboard protective frame body 11;

Located on one side of the blackboard (10) is selectively moved laterally to clean the writing surface 13, the inner side is provided with a support tube 21 formed with a plurality of suction grooves 22 in the body, The upper side of the support tube 21 is driven by the driven shaft 24 by the fixed shaft 23, the outer side of the support tube 21 to wipe the writing surface 13 of the blackboard (10) A cleaning member 20 installed;

The cleaning member 20 is a guide portion 30 is installed on the board protection frame body 11 formed on the upper and lower, so that the blackboard 10 is located vertically on one side;

The cleaning member 20 installed in the guide part 30 is rotated while being selectively moved laterally so that the upper surface of the motor 42 is positioned so that the writing surface 13 can be wiped, and the lower part of the motor 42 is disposed. The main gear 41 is geared to the motor shaft 43 is coupled to the driven gear 24 to rotate the cleaning member 20, the first gear 44 is installed below the main gear 41 A rotating part 40;

The second gear 52 furniture is provided on one side of the first gear 44 installed below the main gear 41 so that the cleaning member 20 rotated by the rotating part 40 can be moved laterally while being rotated. A third gear 52 is positioned at an upper side of one side of the second gear 52, and a pinion gear 53 is formed at a lower side of the second gear 52 to be installed laterally on the rear side of the blackboard protective frame body 11. A pinion gear 53 is gear-coupled to the leg portion 54 to move the cleaning member 20;

Of the support tube 21 formed inside the cleaning member 20 so that the cleaning member 20 can suck and process the chalk powder generated while wiping the writing surface 13 of the blackboard 10. A dust collecting unit 60 installed below;

The cleaning member 20 is composed of a switch unit 70 installed on one side of the blackboard 10 to control the power supply and electrical signals to be operated by the drive of the transfer unit 50 and the rotating unit 40 Is achieved.

Therefore, by installing a cleaning device that can move laterally by driving the motor 42 on one side of the blackboard 10 and wipe the writing surface 13 written in chalk on the blackboard 10, the writing surface in a short time (13) can be wiped, and it can prevent the scattering of chalk powder.

Therefore, the merchandise and convenience can be improved.

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

1 is a perspective view illustrating a state of use and a state of use of the present invention cleaning blackboard.

Figure 2 shows the internal shape of the cleaning roller provided on one side of the cleaning blackboard of the present invention in a partially cutaway cross-sectional view.

That is, as illustrated in FIGS. 1 and 2, the cleaning member 20 is positioned at one side of the blackboard 10 to be selectively moved laterally and to wipe the writing surface 13.

The cleaning member 20 has a support tube 21 in which a plurality of suction grooves 22 are formed in the inner body, and a driven gear 24 is formed on the upper portion of the support tube 21 by a fixed shaft 23. It is moistened.

The reason why the plurality of suction grooves 22 are formed in the body of the support tube 21 positioned inside the cleaning member 20 is to remove dust generated while the cleaning member 20 cleans the writing surface 13. Inhalation is formed to prevent dust from scattering outside.

And the outer portion of the support tube 21 can be easily erased with the contents written in chalk on the writing surface 13 of the blackboard 10, the non-woven fabric 25 is installed to be easily absorbed into the chalk furniture is installed.

On the other hand, inside the nonwoven fabric 25, a filter 26 capable of filtering out chalk powder having a solid shape may be provided and used.

In addition, the filter 26 is attached to the suction groove 22 at the same time as the chalk powder adsorbed through the support tube 21 on the rear side of the filter 26 of the cleaning member 20 where the filter 26 is installed. It is preferable to install a filtering net 27 which serves to prevent deterioration and to filter out chalk dust and the like.

In addition, a driven gear 24 is installed on the support tube 21 of the cleaning member 20 by a fixed shaft 23.

The driven gear 24 is formed so that the cleaning member 20 rotates and wipes the writing surface 13.

In addition, the driven gear 24 has a motor 42 positioned at an upper portion thereof, and a main gear 41 which rotates the cleaning member 20 by gear coupling with a driven gear 24 at a lower portion of the motor 42. It is supported by the motor shaft 43, the lower portion of the main gear 41 is driven by the rotating portion 40, the first gear 44 is installed.

That is, the cleaning member 20 is driven by the driven gear 24 on the upper portion of the support pipe 21 is located inside, the driven gear 24 is the main gear that rotates by the drive of the motor 42 Since the gears are coupled to the 41, the writing surface 13 can be rotated and wiped.

On the other hand, the first gear 44 is provided on the lower side of the main gear 41 so as to rotate laterally while rotating on the writing surface 13 of the blackboard 10 of the cleaning member 20.

In addition, a second gear 52 is provided at one side of the first gear 44, a third gear 52 is positioned at an upper side of the second gear 52, and a pinion gear 53 at a lower portion of the first gear 44. ) Is formed, and the pinion gear 53 is gear-coupled to the rack portion 54 which is installed laterally on the rear side of the blackboard protective frame body 11 to move the cleaning member 20.

That is, the second gear 52 is geared to one side of the first gear 44 axially lowered to the lower side of the main gear 41, and the other side of the second gear 52 in the upper portion The third gear 52 is positioned, the pinion gear 53 is formed at the lower portion, the pinion gear 53 is provided in the rack portion 54 formed at the rear side of the upper blackboard protective frame body 11 of the blackboard (10). Since the cleaning member 20 is to be coupled is selectively moved laterally while rotating on the writing surface 13 of the blackboard (10).

On the other hand, the cleaning member 20 is geared by the rack portion 54 and the pinion gear 53 on the lower body of the guide portion 30 and the blackboard protection frame body 11 located at the lower portion of the blackboard 10. When combined and driven, it is preferable to form and use the guide roller 80 selectively so that it can be moved laterally more smoothly.

In addition, the dust generated while wiping the writing surface 13 is sucked into the suction groove 22 of the support tube 21 in the lower portion of the cleaning member 20, and is not scattered from the inside, but may be discharged to the outside. The dust collector 61 is formed so that.

The dust collecting unit 60 is fixed to the support tube 21 of the cleaning member 20 through the connection pipe 28 and then moved to the dust collector 61 through the discharge hose 62 so that the chalk powder is scattered indoors. To prevent that.

In addition, a bearing 90 is installed on the inner upper portion of the discharge hose 62 so as to smoothly rotate after the connection pipe 28 is fitted.

In addition, a switch unit 70 is provided at one side of the blackboard 10 to supply power to the motor 42 and to control an electrical signal so that the cleaning member 20 is driven.

In addition, limit switches 71 are provided on both sides of lower portions of the guide part 30 that are selectively installed perpendicular to the writing surface 13 so as to clean the writing surface 13 by automatically reciprocating the cleaning member 20 instead of manually. And a ground piece 72 is formed at both ends of the board protection frame body 11 positioned at the lower portion so that the guide part 30 is moved laterally by the driving of the motor 42 and the guide part 30. When the limit switch 71 is grounded to the ground piece 72, the guide unit 30 can be automatically reciprocated in the writing surface 13 in such a manner that the electrical signal is switched, and the writing surface 13 can be wiped. It is.

Therefore, by installing a cleaning device that can move laterally by driving the motor 42 on one side of the blackboard 10 and wipe the writing surface 13 written in chalk on the blackboard 10, the writing surface in a short time (13) can be wiped, and it can prevent the scattering of chalk powder.

Therefore, the merchandise and convenience can be improved.

According to the present invention as described above, by installing a cleaning device that can move sideways by driving the motor 42 on one side of the blackboard 10 and wipe the writing surface 13 written in chalk on the blackboard 10 , You can wipe the writing surface 13 in a short time, it will also prevent the scattering of chalk powder.

Therefore, the invention is a very useful invention that can improve the convenience and convenience.

Claims (5)

A blackboard 10 in which the open portion 12 is opened to the blackboard protective frame 11 so that the writing surface 13 is exposed; Located on one side of the blackboard (10) is selectively moved laterally to clean the writing surface 13, the inner side is provided with a support tube 21 formed with a plurality of suction grooves 22 in the body, The upper side of the support tube 21 is driven by the driven shaft 24 by the fixed shaft 23, the outer side of the support tube 21 to wipe the writing surface 13 of the blackboard (10) A cleaning member 20 installed; The cleaning member 20 is a guide portion 30 is installed on the board protection frame body 11 formed on the upper and lower, so that the blackboard 10 is located vertically on one side; The cleaning member 20 installed in the guide part 30 is rotated while being selectively moved laterally so that the upper surface of the motor 42 is positioned so that the writing surface 13 can be wiped, and the lower part of the motor 42 is disposed. The main gear 41 is geared to the motor shaft 43 is coupled to the driven gear 24 to rotate the cleaning member 20, the first gear 44 is installed below the main gear 41 A rotating part 40; The second gear 52 furniture is provided on one side of the first gear 44 installed below the main gear 41 so that the cleaning member 20 rotated by the rotating part 40 can be moved laterally while being rotated. A third gear 52 is positioned at an upper side of one side of the second gear 52, and a pinion gear 53 is formed at a lower side of the second gear 52 to be installed laterally on the rear side of the blackboard protective frame body 11. A pinion gear 53 is gear-coupled to the leg portion 54 to move the cleaning member 20; Of the support tube 21 formed inside the cleaning member 20 so that the cleaning member 20 can suck and process the chalk powder generated while wiping the writing surface 13 of the blackboard 10. A dust collecting unit 60 installed below; The cleaning member 20 is composed of a switch unit 70 is installed on one side of the blackboard 10 to control the power supply and electrical signals to be operated by the drive of the transfer unit 50 and the rotating unit 40 Cleaning blackboard characterized by the above. The cleaning blackboard according to claim 1, wherein a filter (26) for filtering chalk powder having a solid shape is provided inside the nonwoven fabric (25). The method of claim 2, wherein the filter 26 is in close contact with the suction groove 22 at the same time as the chalk powder is adsorbed through the support tube 21 to the rear side of the filter 26 to prevent a decrease in suction amount, A cleaning blackboard, characterized in that the filter net 27 is installed to secondaryly filter chalk. 2. The writing surface of claim 1, wherein the cleaning member 20 is geared to the upper and lower side surfaces of the guide part 30 by being driven by the lever part 54 and the pinion gear 53. And a guide roller (80) to be grounded and moved to (13). 2. The limit switch 71 of claim 1, wherein the cleaning member 20 is provided at both sides of the lower side of the lower part of the guide part 30 so that the cleaning member 20 can be reciprocated automatically instead of manually. Both sides of the blackboard protective frame body 11 is a cleaning blackboard, characterized in that to form a ground piece (72).