KR101144224B1 - water supply system of water cleaning board - Google Patents

Abstract

The present invention relates to a water supply apparatus of a water washing blackboard, and more particularly, to facilitate the supply of water while improving the washing efficiency.

The configuration of the present invention, the blackboard main body 10 including the writing member 11, and the left and right by the driving instruction of the drive unit along the writing member 11 is moved to the shaft 21 outer peripheral surface by the rotation of the motor (M) The cleaning means 20 which erases the use surface with the attached brush 22 in contact with the writing member 11, and the brush 22 of the cleaning means 20 are provided with the writing member 11. In the cleaning liquid supply means 30 for supplying a liquid cleaning liquid from the cleaning liquid tank 31 by the pump 32 so as to clean the writing particles on the surface,

The shaft 21 is a hollow hollow pipe member, the upper portion of which is coupled to the connecting shaft 40 through which the injection hole 42 is drilled so as to communicate with the main hole 41, and the lower portion of the supply pipe 33 from the pump 32. ) Is connected.

Here, the outside of the brush 22 is covered with a cover 50 having the wiper member 51 on both sides, the housing shaft 43 is coupled to the outside rotatably connected by the bearing shaft (B) 43 ) To excavate the guide hole 44 inclined toward the bottom.

Description

{Water supply system of water cleaning board}

The present invention relates to a water supply apparatus of a water washing blackboard, and more particularly, to facilitate the supply of water while improving the washing efficiency.

In general, in order to erase the writing items written in chalk on the surface of the blackboard, a blackboard eraser having an erased surface of sewing (cloth) is used to erase the blackboard surface.

However, when the board eraser rubbed the surface of the blackboard and erased the records on the surface of the blackboard, chalk powder scattered around.

In addition, when the blackboard eraser was shaken off to remove the chalk dust on the eraser surface of the eraser, the problem of scattering of chalk powder occurred.

However, the surface of the blackboard is not a perfect plane but has a certain surface roughness in order to prevent the sliding of chalk. Therefore, when writing with chalk on the surface of the board, chalk powder gets stuck in the fine recesses of the surface.

For this reason, even if the blackboard surface is erased using the blackboard eraser, there is a problem that the records on the surface of the blackboard cannot be erased.

A black plate erasing apparatus for solving such a problem is disclosed in Japanese Patent Laid-Open Nos. 8-113000 and 9-193599.

In the erasing device disclosed in the above publication, a brush having an outer circumference formed by a brush, a sponge, or the like is mounted on a moving body moving in the transverse direction of the blackboard, and the shaft is mounted on the surface of the blackboard toward the longitudinal direction of the blackboard. The outer circumferential surface is designed to rotate while being in sliding contact with the surface of the blackboard.

In addition, the mobile gas is equipped with a cleaning liquid supply means for supplying a cleaning liquid such as water near the contact area between the surface of the blackboard and the brush, and in a state in which the surface of the erasing member is in sliding contact with the surface of the blackboard on one side, for example, from the left and right sides. A rubber wiper member (scraper) is elongated in the longitudinal direction (up and down direction).

In addition, a structure in which the blower for blowing warm air is mounted on the surface of the blackboard on the left side of the wiper member.

On the other hand, Korean Patent Publication No. 1999-013320 has been proposed a structure for performing the erase operation while the brush is in contact with the power unit for the left and right operating the cleaning device to the writing member and the blackboard assembly under the cleaning liquid supply conditions.

At this time, in order to supply the cleaning liquid, the water is forced to the inside of the hollow shaft to which the brush is attached by moving from the water tank to the upper part of the brush by the pump, and the brush surface is removed through a plurality of supply holes drilled in the hollow shaft. Supplying the cleaning liquid.

As such, when the cleaning liquid is supplied from the upper part of the conventional brush, the cleaning liquid supply amount is not constant from the upper part to the lower part.

Therefore, the amount of the cleaning liquid supply is too high in the upper portion of the relatively high water pressure, but the amount of the cleaning liquid supply is insufficient with the brush at the lower side, in particular, the contents written on the lower side cannot be completely erased.

The present invention has been made to solve the above problems and to provide a washing board to wash the writing surface evenly over the entire surface by allowing the cleaning liquid to be supplied freely falling from the top of the brush.

Another object of the present invention is to provide a water cleaning blackboard which prevents unnecessary waste of the cleaning liquid and has excellent cleaning efficiency.

In order to achieve the above object, the present invention provides a blackboard main body 10 including a writing member 11,

The brush 22 attached to the outer circumferential surface of the shaft 21 by the rotation of the motor M is moved to the driving direction along the writing member 11 and is removed from the use surface in contact with the writing member 11. Cleaning means 20 for performing the action,

Cleaning liquid supply means for supplying a liquid cleaning liquid from the cleaning liquid tank 31 by the pump 32 so that the brush 22 of the cleaning means 20 can clean the writing particles on the surface of the writing member 11. In consisting of (30),

The shaft 21 is a hollow hollow pipe member, the upper portion of which is coupled to the connecting shaft 40 through which the injection hole 42 is drilled so as to communicate with the main hole 41, and the lower portion of the supply pipe 33 from the pump 32. ) Is connected.

Here, the outside of the brush 22 is covered with a cover 50 having the wiper member 51 on both sides, the housing shaft 43 is coupled to the outside rotatably connected by the bearing shaft (B) 43 ) To excavate the guide hole 44 inclined toward the bottom.

According to this configuration of the present invention, the spray hole 42 is thus supplied from the pump 32 located in the cleaning liquid tank 31 toward the connecting shaft 40 connected to the upper portion of the shaft 21. Is blown to free fall from the top of the brush 22 to the bottom.

Therefore, the supply of the cleaning liquid is smooth and the supply amount of the cleaning liquid is constant from the top to the lower surface, so that the writing surface cleaning can be evenly improved.

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

1 is a perspective view showing a state in which the cleaning means 20 of the present invention is installed left and right drive on the blackboard body 10.

2 is a longitudinal cross-sectional view of the present invention.

3 is a cross-sectional view illustrating a structure in which wiper members are installed on both sides of the brush 22.

4 is an enlarged cross-sectional view showing the main configuration of the present invention.

In the present invention, the writing member 11 constitutes the blackboard body 10 in a state in which the writing member 11 is wrapped in a frame, and is fixedly installed in front of a classroom or a classroom.

The cleaning means 20 incorporating the cleaning liquid supply means 30 is moved to the left and right of the blackboard main body 10 by a driving means (not shown).

The operation of the cleaning means 20 is operated by the lecturer operation by the operation switch (S) for applying an electrical signal of the control circuit.

The cleaning means 20 includes a brush 22 which rotates together with the shaft 21 while the cleaning liquid contained in the cleaning liquid tank 31 mounted on the lower side of the cleaning means 20 includes the cleaning liquid supply means 30. It is to be cleaned by being driven along the writing surface while contacting 11).

The outside of the wiper member 51, including the brush 22, is covered by the case 25 to protect the internal structure, and the two of the brushes 22 have a cleaning liquid when rotated at high speed by the cover 50. It will protect it from splashing outside.

In FIG. 1, the cleaning blackboard according to the present invention is illustrated as a built-in blackboard to fix the wall to the wall. However, even when the movable blackboard is mounted on a predetermined stand, there is no difference in the overall configuration of the present invention.

The left and right driving of the cleaning means 20 is operated according to the driving direction with the pinion gears coupled to the rack installed along the upper frame of the writing member 11 by the rotation of the driving motor 1, which is typical and thus not shown in detail. The description will be omitted.

The cleaning means 20 is to supply the liquid cleaning liquid from the cleaning liquid tank 31 to wash the particles (eg chalk particles) by rotating the brush 22 while the cleaning liquid is supplied to the writing surface.

The cleaning means 20 is configured to rotate in a state in which the brush 22 planted on the outside of the shaft 21 is in contact with the writing surface by receiving the rotation by the rotation of the motor M.

In addition, the wiper members 51 which are provided on both sides of the cover 50 surrounding the brushes 22 are provided at the rear side of the brushes 22 according to the driving direction in which the wiper members 51 are provided, respectively, on the writing member 11. Upon contact, the cleaning solution is removed.

At this time, the other wiper is maintained in a non-contact state with the writing member 11, the contact and non-contact operation of the wiper member 51 is made by the drive of the wiper motor (not shown).

On the other hand, the cleaning liquid supply means 30 is made by the pump 32 forcibly supplying the cleaning liquid in the cleaning liquid tank 31 toward the shaft 21 having the brush 22.

Then, the supplied washing liquid is collected again into the washing liquid tank 31, and may further include filtering means for collecting and filtering the washing liquid falling naturally.

The washing liquid includes not only tap water but also liquid having a washing function from chemically treated water such as distilled water and surfactant water.

The most important structural feature of the present invention is the connection shaft 40 in which the injection hole 42 is drilled so as to communicate with the main hole 41 in the hollow pipe material in which the shaft 21 is hollow as the cleaning liquid supply means 30. ), And the supply pipe 33 is connected to the lower portion of the pump 32 so that the cleaning liquid freely falls from the upper portion of the brush 22.

The shaft 21 in which the brush 22 is planted outside is selected as a hollow pipe member as shown in FIGS. 2 and 4, and when the cleaning liquid is supplied at a predetermined pressure through the supply pipe 33 connected to the lower portion thereof, the shaft ( It passes through 21 to reach the connecting shaft 40 connected thereon.

The connecting shaft 40 is rotatably supported by the bearings B installed between the housings 43, and the upper end of the connecting shaft 40 is in a state in which the main hole 41 is in communication with the shaft 21. It is drilled a certain length.

In addition, the main hole 41 is again drilled in the axially perpendicular direction several injection holes 42, the cleaning liquid supplied along the shaft 21 is injected through the injection holes 42 to the outside.

At this time, in the housing 43, the guide hole 44 is formed to be inclined downward as shown in FIG. 4, and the cleaning liquid hit by the guide hole 44 flows along the writing surface while freely falling from the uppermost side of the brush 22. As shown in FIG. It will come down.

Since the cleaning liquid is double-protected by the cover 50 and the case 25, the cleaning liquid is prevented from leaking out. Thus, most of the cleaning liquid is lowered along the outer surface of the shaft 21 or the surface of the writing member 11. The liquid is collected by the cleaning liquid tank 31 again, and at the same time as the cleaning liquid is supplied, the chalk 22 can be cleaned by rotating rapidly while moving the brush 22 in contact with the writing surface as described above.

Then, the wiper member 51 removes the cleaning liquid and is ready to write.

1 is a perspective view showing a state in which the cleaning means of the present invention is installed left and right drive on the blackboard body (10).

2 is a longitudinal sectional view of the present invention;

Figure 3 is a plan sectional view showing a structure in which the wiper member is installed on both sides of the brush.

Figure 4 is an enlarged cross-sectional view showing the main portion of the present invention.

Explanation of symbols on the main parts of the drawings

10-blackboard main body 11-writing member

20-cleaning means 21-shaft

22-Brush 30-Cleaning solution supply means

31-Cleaning Tank 32-Pump

33-supply line 40-connecting shaft

41-Main hole 42-Injection hole

Claims (2)

A blackboard main body 10 including a writing member 11, The brush 22 attached to the outer circumferential surface of the shaft 21 by the rotation of the motor M is moved to the driving direction along the writing member 11 and is removed from the use surface in contact with the writing member 11. Cleaning means 20 for performing the action, Cleaning liquid supply means for supplying a liquid cleaning liquid from the cleaning liquid tank 31 by the pump 32 so that the brush 22 of the cleaning means 20 can clean the writing particles on the surface of the writing member 11. In consisting of (30), The shaft 21 is a hollow hollow pipe member, the upper portion of which is coupled to the connecting shaft 40 through which the injection hole 42 is drilled so as to communicate with the main hole 41, and the lower portion of the supply pipe 33 from the pump 32. Water supplying device of the water cleaning blackboard, characterized in that is configured to be connected. The method of claim 1, wherein the outside of the brush 22 is covered with a cover 50 having a wiper member 51 on both sides, the connecting shaft 40 is rotatably coupled to the outside by the bearing (B) The housing 43 is a water supply apparatus of the water cleaning blackboard, characterized in that digging the guide hole 44 inclined toward the bottom.

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