TWI779574B - Cleaning brush apparatus for large-scale display - Google Patents

Abstract

The cleaning brush device for a large-area display provided by the present invention includes: a drive shaft member and a brush member, and the cleaning water passes through the drive shaft member and the brush member in sequence, and flows out from the inside of the brush member to the outside, so that the cleaning water can be supplied to the area to be cleaned. Between the surface of the large-area display of the object and the brush member, thereby preventing scratches on the surface of the large-area display, and at the same time allowing the cleaning liquid to penetrate smoothly between the brush and the large-area display, so that it can be smoothly removed. All kinds of particles, pollution sources and other dirt produced in the process of area display.

Description

Cleaning brush unit for large area displays

The invention relates to a cleaning brush device for a large-area display.

Displays are used to display content, and large-area displays are attracting attention as the area becomes larger.

The large-area display may be a liquid crystal display (LCD), organic light emitting diodes (OLED), etc. according to the light emitting method, and the following patent documents are examples of the large-area display.

In the manufacturing process of the large-area display, the cleaning process is the main process, which accounts for more than 35% of the entire unit project.

The cleaning process is a main process for improving the efficiency and electrical characteristics of large-area display products by using cleaning solutions such as chemical solutions or ultrapure water to remove various particles and pollution sources generated during the large-area display process.

However, in the past, since a brush made of nylon material was simply used as a dirt removal tool for removing various particles, pollution sources, etc. Between the brush and the large-area display, there is a problem that scratches are caused on the surface of the large-area display, and the dirt cannot be removed accurately, and the dirt to be removed remains.

"Known Technical Documents"

<Patent Document>

Patent Document 1: Korean Patent No. 10-2052006 (Approval Date: 2019.11.28, Invention Name: Large-area Glass Polishing System for OLED).

The object of the present invention is to provide a cleaning brush device for a large-area display, which prevents scratches from occurring on the surface of a large-area display by allowing the cleaning liquid to penetrate smoothly between the brush and the large-area display, and can Smoothly remove all kinds of particles, pollution sources and other dirt produced in the process of large-area display.

According to an aspect of the present invention, a cleaning brush device for a large-area display is used for cleaning the surface of a large-area display, which includes: a driving shaft member configured to be separated from the large-area display by a predetermined interval, and across the width direction of the large-area display, rotatable by an external drive unit, and flows cleaning water supplied by an external supply unit for cleaning the large-area display; and a brush member connected to the drive shaft member to clean the surface of the large-area display while rotating, wherein the cleaning water passes through the drive shaft member and the brush member in order to flow from the inside to the outside of the brush member , so as to be supplied between the surface of the large area display and the brush member.

The cleaning brush device for a large-area display according to an aspect of the present invention has the following effects: through the drive shaft member and the brush member included in the cleaning brush device for a large-area display, cleaning water passes through the drive shaft member and the brush in sequence member and flows from the inside of the brush member to the outside, so that cleaning water can be supplied between the surface of the large-area display to be cleaned and the brush member, whereby the cleaning liquid can smoothly penetrate between the brush and the large-area display In order to prevent scratches on the surface of the large-area display, it can smoothly remove various particles, pollution sources and other dirt to be removed during the manufacturing process of the large-area display.

10: Cleaning equipment

20: frame

30: External drive unit

40: External supply unit

100: cleaning brush device

110: drive shaft component

111: clean water supply side rotation shaft

112: drive shaft

115: Clean water flow hole on drive shaft side

120: clean water supply side connection part

121: Rotary shaft side flange

122: Brush side flange

123: Flange connection unit

130: Drive side connection part

131: base

132: cover

133: Lid connection unit

150: Brush components

151: Brush side rotation axis

152: Brush side cleaning water flow hole

153: Brush relatively clean water flow holes

155: Drive to the rotary shaft

160: Rotary shaft connector

161:Clean water branch hole

162: Support body outside the shaft main body

163: shaft hole insert body

170: brush connecting pipe body

171: clean water outflow hole

172: Connect the flow path outside the pipe body

175: brush

176: elastic provides holes

180: Inner connecting pipe body

190: strengthen the central axis

191: Reinforced shaft main body

192: Strengthen the shaft hole

270: Brush connecting pipe body

272: Connect the flow path outside the pipe body

1 is a perspective view showing a state in which a cleaning brush device for a large-area display is applied to a cleaning device for a large-area display according to an embodiment of the present invention;

2 is a perspective view showing the structure of a cleaning brush device for a large-area display according to an embodiment of the present invention;

3 is an enlarged view showing a part of the cleaning brush device for a large-area display according to an embodiment of the present invention, taken along the lengthwise direction of the brush member;

4 is an enlarged cross-sectional view taken along the width direction of a brush member of a cleaning brush device for a large-area display according to an embodiment of the present invention;

5 is a perspective view showing a brush member constituting a cleaning brush device for a large-area display according to an embodiment of the present invention;

6 is a perspective view showing a state where each element of a brush member constituting a cleaning brush device for a large-area display according to an embodiment of the present invention is separated;

7 is a partially enlarged perspective view of a brush in a brush member constituting a cleaning brush device for a large-area display according to an embodiment of the present invention;

8 is an exploded and enlarged perspective view of a drive shaft connection part of a drive shaft component constituting a cleaning brush device for a large-area display according to an embodiment of the present invention;

9 is an exploded and enlarged perspective view of a cleaning water supply side connection portion in a drive shaft member constituting a cleaning brush device for a large-area display according to an embodiment of the present invention; and

10 is a perspective view showing a brush member constituting a cleaning brush device for a large-area display according to another embodiment of the present invention.

A cleaning brush device for a large-area display according to an embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 is a perspective view showing a state in which a cleaning brush device for a large-area display is applied to a cleaning device for a large-area display according to an embodiment of the present invention; Fig. 2 is a perspective view showing a cleaning brush for a large-area display according to an embodiment of the present invention A perspective view of the structure of the device; FIG. 3 is an enlarged view showing a part of a cleaning brush device for a large-area display according to an embodiment of the present invention, which is taken along the length direction of the brush member; FIG. A sectional view of a cleaning brush device for a large-area display taken along the width direction of a brush member; Fig. 5 is a perspective view showing a brush member constituting a cleaning brush device for a large-area display according to an embodiment of the present invention; Fig. 6 It is a perspective view showing a state in which each element of the brush member constituting the cleaning brush device for a large-area display according to an embodiment of the present invention is separated; FIG. 7 is a cleaning brush constituting a large-area display according to an embodiment of the present invention A partially enlarged perspective view of the brush in the brush member of the device; FIG. 8 is an exploded and enlarged perspective view of a drive shaft connection part in a drive shaft member constituting a cleaning brush device for a large-area display according to an embodiment of the present invention; and FIG. 9 is a An exploded and enlarged perspective view of a cleaning water supply side connection part of a drive shaft member constituting a cleaning brush device for a large-area display according to an embodiment of the present invention.

Referring to FIG. 1 to FIG. 9 , the cleaning brush device 100 for a large-area display according to this embodiment is used to clean the surface of a large-area display, including: a drive shaft member 110 and a brush member 150 .

The drive shaft member 110 is configured to be separated from the large-area display by a predetermined interval, and straddles the width direction of the large-area display, and can be rotated by the external drive unit 30 so that the external supply unit 40 supplies the Clean water flows to clean the large area display.

The brush member 150 is connected to the driving shaft member 110 to clean the surface of the large area display while rotating.

When constituted as described above, the cleaning water passes through the driving shaft member 110 and the brush member 150 sequentially, flows out from the inside of the brush member 150 to the outside, and thus is supplied between the surface of the large area display and the brush member 150 .

In addition, while the cleaning water is discharged from the inside of the brush member 150 to the outside, other cleaning water may be sprayed from the outside of the brush member 150 to the surface of the large-area display.

The cleaning equipment 10 for large-area displays is used to remove the dirt to be removed, such as various particles and pollution sources produced in the process of large-area displays, so as to clean the large-area displays; the cleaning equipment 10 for large-area displays includes : a pair of frames 20 are arranged apart from each other, and a large-area display of an object to be cleaned is moved between them; the cleaning brush device 100 for the large-area display is arranged between the pair of frames 20 while rotating Clean the large-area display; the external drive unit 30 is an electric motor, etc., and is arranged at any one of the frames 20 for rotating the cleaning brush device 100 for the large-area display; and an external supply unit 40, It is a pump or the like, which is provided at the other place of the frame 20, and makes cleaning water flow to the cleaning brush device 100 for the large-area display.

As shown in FIG. 1 , a plurality of cleaning brush devices 100 for large-area displays are arranged in pairs between frames 20 , so that both surfaces of large-area displays can be cleaned simultaneously.

In more detail, the drive shaft member 110 includes: a clean water supply side rotation shaft 111 , a clean water supply side connection part 120 , a drive shaft 112 , and a drive side connection part 130 .

The cleaning water supply side rotating shaft 111 is connected to the external supply unit 40 for flowing the cleaning water supplied through the external supply unit 40 to the brush member 150 side.

As shown in FIG. 3 , the drive shaft side cleaning water flow hole 115 is formed in the form of penetrating the inside of the cleaning water supply side rotating shaft 111 in the longitudinal direction of the cleaning water supply side rotating shaft 111 , and the cleaning water supplied from the outside by the external supply unit 40 Water flows through the drive shaft side cleaning water flow hole 115 so that cleaning water can flow along the inside of the cleaning water supply side rotation shaft 111 .

The clean water supply side connection part 120 is used to detachably connect the clean water supply side rotating shaft 111 and a predetermined part of the brush member 150, that is, the brush side rotating shaft 151 described later includes: the rotating shaft side flange 121, the brush The side flange 122 and the flange connection unit 123 .

The rotating shaft side flange 121 is at the end of the clean water supply side rotating shaft 111 , and the end of the clean water supply side rotating shaft 111 expands outwards to form a circular plate shape.

The brush-side flange 122 is at the end of the brush-side rotating shaft 151 , and the end of the brush-side rotating shaft 151 expands outwards to form a circular plate shape, which is in contact with the rotating shaft-side flange 121 .

The flange connecting unit 123 is detachably connected to the flange 121 at the side of the rotating shaft and the flange 122 at the side of the brush, and can be, for example, a bolt that can pass through the flange 121 at the side of the rotating shaft and the flange 122 at the brush side and a combination thereof. Nuts etc.

The flange connection unit 123 uses bolts to pass through the flange 121 on the rotating shaft side and the flange 122 on the brush side together, and then connects nuts, etc., so that the flange 121 on the rotating shaft side and the flange 122 on the brush side are closely coupled to the rotating shaft. When the side flange 121 and the brush side flange 122 are connected, the cleaning water supply side rotating shaft 111 and the brush side rotating shaft 151 are connected, so that the cleaning water supply side rotating shaft 111 and the brush side rotating shaft 151 rotate together. , can deliver clean water.

When the coupling of the flange connection unit 123 is released from the rotating shaft side flange 121 and the brush side flange 122 by separating the nut, etc. from the bolts that pass through the rotating shaft side flange 121 and the brush side flange 122 together, it becomes the cleaning water supply side. The rotating shaft 111 and the brush-side rotating shaft 151 can be separated from each other.

The driving shaft 112 is connected to the rotating shaft of the external driving unit 30 and can be rotated by the external driving unit 30 .

The driving-side connecting portion 130 detachably connects the driving shaft 112 and a predetermined part of the brush member 150 , that is, the driving-side rotating shaft 155 described later includes: a base 131 , a cover 132 , and a cover connecting unit 133 .

The base 131 is formed at the end portion of the drive shaft 112 and is placed on the end portion of the drive-to-rotation shaft 155 .

The cover 132 can abut against the base 131 to cover the end portion of the driving rotation shaft 155 placed on the base 131 .

At least one of the base 131 and the cover 132 and the end portion of the drive-to-rotation shaft 155 are formed with concavo-convex portions combined, so that the end portion of the drive-to-rotation shaft 155 placed on the base 131 does not Between the base 131 and the cover 132 idling, the brush member 150 can rotate together with the driving shaft member 110 .

The cover connecting unit 133 detachably connects the base 131 and the cover 132 , and may be, for example, a bolt passing through the base 131 and the cover 132 together and a nut combined with the bolt.

In the state where the cover 132 is in contact with the base 131 to cover the end portion of the driving rotation shaft 155 placed on the base 131, the cover connecting unit 133 penetrates the base together with bolts. When the seat 131 and the cover 132 are coupled to the base 131 and the cover 132 with nuts or the like so that the base 131 and the cover 132 are closely attached, the base 131 and the cover 132 are connected.

When the coupling between the cover connecting unit 133 and the base 131 and the cover 132 is released by separating the nuts from the bolts penetrating the base 131 and the cover 132 together, the base 131 and the cover 132 are separable.

As described above, since the drive shaft member 110 includes the cleaning water supply side connection portion 120 and the drive side connection portion 130, the brush member 150 can be easily separated from the drive shaft member 110, whereby the brush member 150 can be easily replaced. .

The brush member 150 includes: a brush side rotating shaft 151, a rotating shaft connecting body 160, a brush connecting pipe body 170, a brush 175, an inner connecting pipe body 180, a brush side cleaning water flow hole 152, a plurality of cleaning water branch holes 161, The brush is opposed to the cleaning water flow hole 153 , the plurality of cleaning water flow holes 171 , the reinforced central shaft 190 , and the driving rotation shaft 155 .

The brush side rotating shaft 151 is connected to the cleaning water supply side rotating shaft 111 through the cleaning water supply side connection part 120 , and rotates together with the cleaning water supply side rotating shaft 111 .

The rotating shaft connection body 160 is disposed at the end portion of the brush-side rotating shaft 151 and is formed in a circular plate form relatively expanded compared with the brush-side rotating shaft 151 .

The brush connecting pipe body 170 is connected along the peripheral portion of the rotating shaft connecting body 160, and its interior is hollow, and is formed to face the large-area display in the width direction of the large-area display as a whole. length.

The brush connecting pipe body 170 is formed in a hollow cylindrical shape, along the peripheral portion of the rotating shaft connecting body 160 at the portion facing the driving rotating shaft 155 in the rotating shaft connecting body 160 . The connection between the brush connecting pipe body 170 and the rotating shaft connecting body 160 is sealed to prevent any flow of cleaning water.

Although not shown in the figure, the structure corresponding to the brush connecting pipe body 170 is also applied between the driving rotating shaft 155 and the brush connecting pipe body 170, and the driving rotating shaft 155 and the brush connecting pipe body 170 can also be connected by seal.

The brush 175 is formed on the periphery of the brush connecting pipe body 170, and can clean the large-area display while being in contact with the large-area display.

The brush member 150 covers the brush connecting tube body 170 and tightly fits along the outside of the brush connecting tube body 170 .

In order to perform tight fitting smoothly, an elastic provision hole 176 is formed in the brush 175 so that the brush member 150 can be elastically deformed when the brush member 150 is tightly fitted along the outside of the brush connecting tube body 170 .

The elasticity providing hole 176 is formed as plural in the brush 175 in the form of penetrating a part of the brush 175, so that the brush member 150 is stretched etc. Elastic deformation while achieving a tight fit smoothly.

The inner connecting pipe body 180 is formed to be relatively smaller than the diameter of the brush connecting pipe body 170, and is formed in a hollow cylindrical shape. It is connected to the rotating shaft connecting body 160 and extended along the inside of the brush connecting pipe body 170 to a predetermined length.

The inner connecting pipe body 180 and the rotating shaft connecting body 160 are also sealed.

When configured as described above, the brush connecting pipe body 170 and the inner connecting pipe body 180 are arranged in a double cylindrical shape, and a brush opposing body is formed between the brush connecting pipe body 170 and the inner connecting pipe body 180 . Clean the water flow holes 153 .

The brush side cleaning water flow hole 152 runs through the inside of the brush side rotating shaft 151 in the length direction of the brush side rotating shaft 151, and communicates with the drive shaft side cleaning water flow hole 115, along the drive shaft side cleaning water flow hole 115 The flowing cleaning water flows along the inside of the brush-side rotation shaft 151 .

Each of the cleaning water branch holes 161 communicates with the brush-side cleaning water flow hole 152, so that the cleaning water flowing along the brush-side cleaning water flow hole 152 is branched into a plurality of branch flows, which are formed to branch into the rotating shaft connecting body 160 as Plural tributaries.

The brush-side cleaning water flow hole 152 is connected to the center of the rotating shaft connector 160 , and each cleaning water branch hole 161 may be formed in a plurality of branches radially from the center of the rotating shaft connecting body 160 .

The brush is connected to each cleaning water branch hole 161 relative to the cleaning water flow hole 153, and is formed along the space between the brush connecting pipe body 170 and the inner connecting pipe body 180, and the cleaning water flowing along each cleaning water branch hole 161 Flow along the space between the brush connecting pipe body 170 and the inner connecting pipe body 180 .

Each cleaning water outflow hole 171 communicates with the brush relative to the clean water flow hole 153, is formed to penetrate the brush connecting pipe body 170, and flows out to the brush 175 so that the clean water flowing through the brush relative to the clean water flow hole 153 wets the brush 175 .

When constituted as described above, the cleaning water flowing along the drive shaft side cleaning water flow hole 115 flows through the brush side cleaning water flow hole 152, and then is branched into plural numbers through each cleaning water branch hole 161. Then, flow out through each cleaning water outflow hole 171 while flowing through the brush relative to the cleaning water flow hole 153, and flow out to the brush 175 to wet the entire brush 175.

The reinforcing central shaft 190 is connected to the rotating shaft connecting body 160 and extended along the hollow interior of the inner connecting pipe body 180 toward the length direction of the inner connecting pipe body 180 to reinforce the inside of the brush member 150 .

More specifically, the reinforcing central shaft 190 includes: a reinforcing shaft main body 191 having a polygonal cross section such as a quadrangular cross section, disposed along the inside of the brush member 150; and a reinforcing shaft hole 192 formed along the reinforcing shaft main body 191. A form that penetrates through the center.

The reinforced central shaft 190 is manufactured in a profile shape to have the same cross-sectional shape by extrusion.

By using the reinforcement center shaft 190, the brush member 150 can be reinforced to prevent each constituent element of the brush member 150, ie, the brush connecting pipe body 170 and the inner connecting pipe body 180, from being twisted or deformed when the brush member 150 is rotated.

A shaft hole insertion body 163 and a shaft body outer support body 162 protrude from the surface of the rotating shaft connecting body 160 facing the reinforcing central shaft 190 .

The shaft hole inserting body 163 protrudes from the central portion of the surface facing the reinforcing central shaft 190 of the rotating shaft connecting body 160 , and is inserted into an end portion of the reinforcing shaft hole 192 .

The shaft body outer support body 162 is in the form of a quadrilateral frame capable of surrounding the periphery of the end portion of the reinforcement shaft body 191 , and is formed at the end portion of the reinforcement shaft body 191 .

On the outside of the brush connecting pipe body 170, there is formed a connecting pipe body outer flow path 172 communicating with the cleaning water outflow hole 171, and the connecting pipe body outer flow path 172 is a depression formed on the outside of the brush connecting pipe body 170 to a predetermined depth. , the cleaning water flowing out through the cleaning water outlet hole 171 flows along the connecting pipe body outer flow path 172 and diffuses along the brush connecting pipe body 170 outside, and is supplied to the brush 175 at the same time.

In this embodiment, as an example, the flow paths 172 outside the connecting pipe body 172 are formed in a straight line extending along the length direction of the brush connecting pipe body 170 , and a plurality of them are formed on the outside of the brush connecting pipe body 170 .

The drive shaft 155 is extended by a predetermined length on the side not connected to the rotating shaft connecting body 160 in the two ends of the brush connecting pipe body 170, instead of extending on the side connected to the rotating shaft connecting body 160, the The driving rotation shaft is detachably connected to the driving shaft 112 through the driving side connecting portion 130 .

When configured as described above, when the large-area display passes between the frames 20 through other mechanical arms, the drive shaft member 110 rotates by the external drive unit 30 while rotating the brush member 150 , and at the same time, the brush member 150 is rotated by the external supply unit 40 . The supplied cleaning water flows out from the inside of the brush member 150 to the outside through the driving shaft member 110 and the brush member 150 in sequence, so that the cleaning water can be smoothly supplied between the surface of the large area display and the brush member 150 .

As described above, the cleaning brush device 100 for a large-area display includes the drive shaft member 110 and the brush member 150, and the cleaning water flows from the inside of the brush member 150 to the outside through the drive shaft member 110 and the brush member 150 in sequence, thereby , the cleaning water can be supplied between the surface of the large-area display and the brush part 150, whereby the cleaning water can be smoothly penetrated between the brush 175 and the large-area display to prevent scratches on the surface of the large-area display , can remove various particles, pollution sources and other dirt to be removed in the process of large-area display.

A cleaning brush device for a large-area display according to other embodiments of the present invention will be described below with reference to the accompanying drawings. During the description, please refer to the above content for the description that overlaps with the content described in the above-mentioned one embodiment of the present invention, and the detailed description thereof is omitted here.

10 is a perspective view showing a brush member constituting a cleaning brush device for a large-area display according to another embodiment of the present invention.

Referring to FIG. 10 , in this embodiment, the flow path 272 outside the connecting pipe body is formed in a lattice shape on the outside of the brush connecting pipe body 270 , whereby the cleaning water can spread more evenly outside the brush connecting pipe body 270 .

Although the specific embodiments of the present invention have been illustrated above, those skilled in the art of the present invention can carry out various modifications and changes to the present invention within the scope of the present invention idea and field described in the scope of application for patents of the present invention. . However, it should be understood that these modifications and deformation structures all belong to the patent scope of the present invention.

"Industrial Utilization Possibility"

According to the cleaning brush device for a large-area display according to an aspect of the present invention, the cleaning liquid can smoothly penetrate between the brush and the large-area display, thereby preventing scratches on the surface of the large-area display and removing scratches on the surface of the large-area display. Various particles, pollution sources, and other dirt to be removed during the manufacturing process of the area display, so its industrial application has a wide range of possibilities.

10: Cleaning equipment

20: frame

30: External drive unit

40: External supply unit

100: cleaning brush device

Claims (5)

A cleaning brush device for a large-area display, used for cleaning the surface of a large-area display, comprising: a driving shaft member configured to be separated from the large-area display by a predetermined interval and span the width of the large-area display direction, rotatable by an external drive unit, and flows cleaning water supplied by an external supply unit for cleaning the large-area display; and a brush member, connected to the drive shaft member, to rotate Simultaneously cleaning the surface of the large-area display, wherein the cleaning water sequentially passes through the drive shaft member and the brush member to flow from the inside to the outside of the brush member so as to be supplied to the large-area display between the surface of the brush member and the brush member, wherein the drive shaft member includes a clean water supply side rotation shaft connected to the external supply unit to allow The supplied cleaning water flows toward the brush member, wherein the cleaning water flows along the inside of the cleaning water supply side rotating shaft along the length direction of the cleaning water supply side rotating shaft to form a driving shaft side cleaning water flow. hole, the drive shaft side cleaning water flow hole for the cleaning water supplied from the outside to flow along the inside of the cleaning water supply side rotation shaft, and wherein the brush member includes: a brush side rotation shaft connected to the The cleaning water supply side rotating shaft rotates together with the cleaning water supply side rotating shaft; a rotating shaft connecting body is arranged at the end portion of the brush side rotating shaft and is formed to be compared with the brush side rotating shaft Relatively expanded form; a brush connecting pipe body is connected along the periphery of the rotating shaft connecting body, and its interior is hollow, and it is formed so that it can be integrated with the large-area display in the width direction of the large-area display The length facing; a brush, formed on the periphery of the brush connecting pipe body, cleaning the large-area display while in contact with the large-area display; an inner connecting pipe body, separated from the brush connecting pipe body connected to the rotating shaft connecting body at predetermined intervals, extending along the interior of the brush connecting pipe body to a predetermined length; A brush-side cleaning water flow hole penetrates along the inside of the brush-side rotating shaft in the length direction of the brush-side rotating shaft, and communicates with the driving shaft-side cleaning water flowing hole for driving along the drive shaft. The cleaning water flowing through the shaft-side cleaning water flow hole flows along the inside of the brush-side rotating shaft; a plurality of cleaning water branch holes communicate with the brush-side cleaning water flowing hole, Branched into a plurality of branch points, so that the cleaning water flowing along the brush side cleaning water flow hole is branched into a plurality of tributaries; a brush is connected to each of the cleaning water branch holes opposite to the cleaning water flow hole formed along the space between the brush connecting pipe body and the inner connecting pipe body, so that the cleaning water flowing along the respective cleaning water branch holes passes along the brush connecting pipe body and the inner connecting pipe body. The space between the inner connecting tubes flows; and a plurality of cleaning water outflow holes communicate with the brushes relative to the cleaning water flow holes and are formed in a form penetrating through the brush connecting tubes for passing through the brushes. The cleaning water flowing from the brush relative to the cleaning water flow hole flows out toward the brush side to wet the brush. The cleaning brush device for a large-area display according to claim 1, wherein the interior of the inner connecting pipe body is formed in a hollow shape, wherein the brush member includes a reinforced central shaft, and the reinforced central shaft is connected to the The rotating shaft connecting body is configured to extend along the hollow interior of the inner connecting pipe body toward the length direction of the inner connecting pipe body, so as to strengthen the inside of the brush member, wherein the reinforcing central shaft includes: a The reinforcing shaft main body has a polygonal cross-section and is arranged along the inside of the brush member; and a reinforcing shaft hole is formed to penetrate along the central part of the reinforcing shaft main body, wherein the rotating shaft connecting body On the side opposite to the reinforced central axis, there are protrudingly formed: a shaft hole insertion body inserted into the end portion of the reinforced shaft hole; and a support body outside the shaft body formed to surround the end portion of the reinforced shaft body The shape of the periphery is formed at the end portion of the reinforcing shaft main body. According to the cleaning brush device for a large-area display according to claim 1, a flow path outside the connecting pipe body is formed on the outside of the connecting pipe body of the brush, and the flow path outside the connecting pipe body is connected to the connecting pipe body of the brush. The outer surface is formed to be depressed to a predetermined depth, corresponding to the cleaning water outflow hole communicated so that the cleaning water flowing out through the cleaning water outlet hole flows along the flow path outside the connecting pipe body while spreading along the outside of the brush connecting pipe body, and is supplied to the brush. According to the cleaning brush device for a large-area display according to claim 3, wherein, while the brush member covers the brush connecting pipe body, it tightly fits along the outside of the brush connecting pipe body, wherein the brush member An elastic providing hole is formed, and the elastic providing hole makes the brush member elastically deform during the process of tightly fitting the brush member along the outside of the brush connecting tube body. According to the cleaning brush device for a large-area display according to claim 1, wherein, the brush member includes a driving rotation shaft, and the driving rotation shaft passes through the two end portions of the brush connecting pipe body with a predetermined length. The side that is not connected to the rotating shaft connecting body is extended, and the side that is not connected to the rotating shaft connecting body is extended, wherein the drive shaft member includes: a clean water supply side connecting portion for detachable ground-connecting the cleaning water supply side rotation shaft and the brush side rotation shaft; a drive shaft connected to the external drive unit and rotatable by the external drive unit; and a drive side connection for rotatable The drive shaft and the drive-to-rotation shaft are detachably connected, wherein the clean water supply side connection part includes: a rotation shaft side flange formed at the end of the clean water supply side rotation shaft; a brush-side flange formed at the end of the brush-side rotating shaft and adjoining the rotating-shaft-side flange; and a flange connection unit for detachably connecting the rotating-shaft-side flange and The brush side flange, wherein the flange connection unit is coupled to the rotation shaft side flange and the brush side flange in such a manner that the rotation shaft side flange and the brush side flange are in close contact. When the flange is connected, the cleaning water supply side rotation shaft and the brush side rotation shaft are connected, wherein when the flange connection unit is released from the rotation shaft side flange and the brush side flange When coupled, the cleaning water supply side rotation shaft and the brush side rotation shaft are in a detachable state, wherein the drive side connection part includes: a base formed at the end of the drive shaft for Place the drive toward the axis of rotation an end portion; a cover contactable with the base so as to cover an end portion of the driving rotation shaft in a state placed on the base; and a cover connection unit detachably connected to the base and the cover, wherein the cover is in contact with the base in such a manner as to cover an end portion of the driving rotation shaft in a state placed on the base, in which state the cover is connected to the unit When coupled with the base and the cover so that the base and the cover are in close contact, the base and the cover are connected, wherein, when the base and the cover When the lid is uncoupled from the lid connection unit, the base and the lid can be separated.

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