KR101711633B1 - Apparatus for Cleaning the Inner of Deep Well capable of varyable a Brush - Google Patents

Abstract

Provided is an apparatus for cleaning the inside of a groundwater well while also being capable of extending a brush. According to the present invention, the apparatus includes: a rotation unit which has a first hollow rotating shaft having multiple rotating blades in a cylindrical casing in a rotational manner, has a first compressed air supply line connected to the cylindrical casing to supply the first compressed air to collide with the rotating blades, and generates a rotational force for rotating the first hollow rotating shaft; a driving unit which has a second hollow rotating shaft with an upper end connected to a lower end of the first hollow rotating shaft exposed to the lower part of the cylindrical casing, has a packer attached to the outer surface of the second hollow rotating shaft passing through multiple air outlets, and has a second compressed air supply line connected to the upper end of the first hollow rotating shaft to supply the second compressed air into the second hollow rotating shaft through the first hollow rotating shaft in order to expand the packer by using the second compressed air supplied through the air outlets; and a brush unit including a support body having upper and lower ends connected to the upper and lower fixing plates fixed and installed to the second hollow rotating shaft at predetermined intervals, a guide bar having an end connected to the outer surface of the packer while being assembled to guide holes of the support to be guided thereby, and a brush plate integrated to the other end of the guide bar while having brush bristles to extend the brush bristles in a radial direction when the packer expands while brushing the inner surface of the well by receiving the rotational force of the first hollow rotating shaft.

Description

Technical Field [0001] The present invention relates to a cleaning apparatus,

The present invention relates to an apparatus for cleaning foreign matter adhering to the inside of an underground water heart, and more particularly, to an apparatus and method for removing foreign matters attached to a wall or inner casing of an underground water heart, And more particularly, to a cleaning device for an underground water heart, which is capable of varying the brush, which can increase the friction resistance with the inner wall of the heart, thereby increasing the efficiency of removing foreign matter.

Generally, the underground water channel is usually drilled to a certain depth below the surface layer, the inner casing, which is a pipe tube, is inserted into the drilled hole, and the groundwater of the rocky aquifer in the groundwater I have been using it by pumping it.

This groundwater is generally pumped into the groundwater flowing through the crushed joint layer formed in the weathered rock or soft rock layer through the holes formed in the inner casing of the groundwater well.

In the meantime, when the groundwater aquifers are normally developed, about 5 to 10 years after the development, even if the groundwater is abundantly buried, the groundwater, which is the waterway into which the groundwater flows, The pores of the inner casing are gradually clogged by the foreign matter, and the watercourse connected to the groundwater is blocked, so that the groundwater to be collected is rapidly reduced, which makes the use of the groundwater difficult.

In addition, if the inner wall of the inner surface of the underground water is not cleaned regularly, the inner wall of the underground water surface is covered with contaminants such as water, etc., and foreign matter such as soil and sludge introduced along the water- It will accumulate.

When the amount of foreign matter is excessively increased, the groundwater is pumped up to the pump installed at the bottom of the groundwater, and the groundwater pump is damaged.

Conventionally, compressed air was injected into the groundwater and the surging operation using the floating and inflating force of the compressed air was carried out to obtain the effect of cleansing the inside of the groundwater and drilling the blocked water sump. However, it was difficult to expect a definite effect.

(Patent Document 1) KR10-1048037 B1

(Patent Document 2) KR10-1520943 B1

Patent Document 1 discloses a device for cleaning the inside of a heart by driving up and down a brush which descends into the inside of an underground water heart. In Patent Document 2, a suction portion is provided at a lower portion of a discharge portion inserted into the inside of a tunnel, And a crushing unit for crushing the groundwater to clean the groundwater well.

However, in the patent document 1, the overall structure is simple, but the friction resistance between the brush and the inner casing is low during the cleaning of the inner casing, which is the inner wall of the groundwater flushing, by the brush which moves up and down, thereby lowering the cleaning efficiency, It was difficult.

Patent Document 2 requires an electric motor that raises the friction force between the brush and the inner casing to increase the efficiency of removing foreign matter but rotates the brush which is a crushing part and the electric motor requires a watertight sealing structure that is completely immersed in the groundwater The entire structure is complicated, and there is a problem that the maintenance cost of equipment management is excessively increased.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a groundwater collecting apparatus and a groundwater collecting apparatus, And to provide a brush-adjustable underground water internal cleaning device capable of increasing removal efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

As a concrete means for achieving the above object, a preferred embodiment of the present invention is a cleaning device for removing foreign matter adhering to the inside of a groundwater heart, comprising: a first hollow rotary shaft having a plurality of rotary blades, And a first compressed air supply line communicably connected to the cylindrical casing to supply the first compressed air to be collided with the rotary vane to generate a rotational force for rotating the first hollow rotary shaft; And a packer mounted on an outer surface of a second hollow rotary shaft having a second hollow rotary shaft through which the lower end and the upper end of the first hollow rotary shaft exposed to the lower portion of the cylindrical casing are communicatively connected and formed with a plurality of air discharge holes, And a second compressed air supply line communicating with an upper end of the first hollow rotary shaft so as to supply second compressed air to the inner hollow of the second hollow rotary shaft through the first hollow rotary shaft, An operating portion for expanding the packer by the compressed air; And upper and lower fixing plates fixedly installed on the second hollow rotary shaft at predetermined intervals and having upper and lower ends of a plurality of vertical moving bars disposed to contact the outer surface of the packer are formed in the upper and lower fixing plates in a radial direction And a brush bar having a brush bristle at the other end of the connecting bar connected to one end of the vertical movement bar is integrally provided so that the brush bristles are expanded in the outer diameter direction when the packer is expanded in volume, A brush unit that receives the rotational force of the first hollow rotary shaft and brushes the inner wall of the heart of the heart; The present invention also provides a cleaning device for a groundwater around a ground surface.

Preferably, the upper and lower guide paths are elongated holes having a predetermined length formed in the radial direction from the center of the upper and lower fixing plates, or a predetermined length of recesses formed in the inner surfaces of the upper and lower fixing plates, Can be a groove.

The elastic body may be disposed between one end of each of the upper and lower guide paths and the upper and lower ends of the vertical movement bar and contracted to have an elastic restoring force when the packer is expanded in volume.

Preferably, the upper and lower fixing plates may include upper and lower stoppers protruding from the inner surface of the upper and lower fixing plates to restrict movement of the brush plate.

Preferably, the blurring portion further includes a blurring portion for generating an upward flow so that foreign matter removed by the brush bristle can be blurred to the ground and discharged. The blurring portion includes a second hollow rotary shaft And a blades provided on an upper surface of the rotary plate to generate an upward flow when rotated in the same direction as the rotary part and the brush part.

Preferably, the cylindrical casing includes upper and lower covers for covering and sealing the opened upper and lower ends of the hollow cylindrical body, and bearing members for rotatably supporting the first hollow rotary shaft are respectively provided on the upper and lower covers .

Preferably, the upper cover includes an air outlet formed so as to discharge the first compressed air supplied to the inside of the cylindrical casing to the outside, and a blocking plate mounted to the air outlet through a pin member so as to be rotatable And a stopper that restricts upward turning of the blocking plate by 90 degrees or more.

Preferably, the first compressed air supply line is connected to the upper surface of the cylindrical casing so as to downwardly supply the first compressed air impinging on the rotary vane, or is connected to the upper surface of the cylindrical casing to supply the first compressed air, And may be connected to a connection protrusion formed on the outer surface of the casing.

The present invention as described above has the following effects.

(1) By rotating the first hollow rotary shaft having the rotary vane by the first compressed air supplied to the inside of the cylindrical casing, by expanding the volume of the packer by the second compressed air and by extending the brush air in the outer diameter direction, The foreign matter attached to the inner wall of the heart can be brushed by the brush part of the brush part extended to the inner wall of the heart, so that the foreign matter can be removed from the inner wall of the heart, The service life of the heart can be extended.

(2) An upward flow is generated toward the brush part by the blades of the bling part rotated in the same direction as the rotating part and the brush part, thereby discharging the foreign matter removed after the brushing operation to the ground by the upward flow from the lower part to the upper part of the brush part It is possible to improve the efficiency of the cleaning work on the groundwater.

(3) In the state where the outer diameter of the brush portion is reduced, the inner portion of the underground water surface is lowered to the target depth without occurrence of a jam, and the expanded brush portion is restored to its original state after the brushing operation, This makes it possible to stably perform the operation of lowering the brush part into the inside of the heart and ascending and recovering it without occurrence of the jamming, and positioning and position control of the brush part that descends into the chamber can be easily performed. The service life can be extended.

FIG. 1 is an exploded perspective view illustrating a groundwater-based internal cleaning device capable of changing a brush according to a preferred embodiment of the present invention.
FIG. 2 is a perspective view illustrating an internal cleaning device for groundwater around a brush, according to a preferred embodiment of the present invention.
(a) is a state in which the packer is in a waiting state before the volume expansion of the packer,
(b) shows the expansion of the brush part after the volume expansion of the packer.
FIG. 3 is a front view showing a brush-adjustable underground water-based internal cleaning apparatus according to a preferred embodiment of the present invention.
FIG. 4 is a detailed view showing a rotating part of a brush-adjustable underground water internal cleaning device according to a preferred embodiment of the present invention.
FIG. 5 is a longitudinal sectional view showing a brush-adjustable underground water internal cleaning device according to a preferred embodiment of the present invention.
FIG. 6 is a plan sectional view showing an apparatus for cleaning groundwater around the groundwater, which is capable of changing a brush according to a preferred embodiment of the present invention.
FIG. 7 is a perspective view of a rotating unit according to another embodiment of the present invention; FIG.
FIG. 8 is a cross-sectional view of another embodiment of the rotating part in the apparatus for cleaning groundwater around the groundwater, which can change the brush according to the preferred embodiment of the present invention.
FIGS. 9A to 9C are explanatory views showing a state in which a brush-adjustable underground water internal cleaning device according to a preferred embodiment of the present invention is shown.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

1 to 6, the apparatus 100 includes a rotating unit 110, an operating unit 120, and a brush unit 130. The rotating unit 110 includes an operation unit 120 and a brush unit 130, The brushes are extended to contact the inner surface of the inner wall, which is the inner surface of the underground water surface, which is excavated at a certain depth below the ground surface. The brushes are removed by brushing while being rotated by receiving the rotating force generated in the compressed air. It is possible to clean and remove the foreign object to be removed to the ground by blurring.

The rotary unit 110 includes a cylindrical casing 111, a first hollow rotary shaft 113 having a rotary blade 112 and a first compressed air supply line 113 having a rotary blade 112 so as to generate a rotary force by compressed air transferred from an actuator such as a compressor. 0.0 > 114 < / RTI >

The cylindrical casing 111 is a cylindrical structure having a first hollow rotary shaft 113 having a plurality of rotary vanes 112 rotatably installed in an inner space thereof and descending into the inside of the underground water heart.

The cylindrical casing 111 includes upper and lower lids 111b and 111c for covering the open top and bottom ends of the hollow cylindrical body 111a to seal the first and second hollow shafts 111a and 111b, And the lower covers 111b and 111c are respectively provided with bearing members 115a and 115b for rotatably supporting the first hollow rotary shaft 113. [

The flange portion 113a formed at the upper end of the first hollow rotary shaft 113 passes through the auxiliary bearing member 115c inserted into the seating portion 116 recessed on the upper surface of the upper cover 111b And a second compressed air supply line 124 to be described later is connected to the inner hole of the first hollow rotary shaft 113 to be coupled to the seating part 116 so as to supply the second compressed air downward. .

The upper cover 111b of the cylindrical casing 111 is communicatively connected to the first compressed air supply line 114 supplied with the first compressed air generated from a compressor (not shown) on the ground, The high-pressure compressed air can be supplied to the inner space of the cylindrical casing in which the rotary shaft is built.

Accordingly, when the first compressed air is forcibly supplied to the inside of the cylindrical casing through the first compressed air supply line 114, the first hollow rotary shaft 113 having the rotary vane that strikes the first compressed air Can be rotationally driven in one direction in the inner space of the cylindrical casing.

At this time, the first compressed air supplied to the inside of the cylindrical casing 111 generates a rotational power by colliding with the rotating blades, and then the air is discharged from the air discharge port 117, respectively.

The air outlet 117 is provided with a shutoff plate 117a which is rotatably assembled via a pin member. The shutoff plate 117b is in contact with the shutoff plate which is turned upward to limit upward turning of the shutoff plate by 90 degrees or more. . ≪ / RTI >

Accordingly, when the first compressed air supplied to the inside of the cylindrical casing is discharged through the air discharge port, the blocking plate is turned upward by the compressed air discharged to open the air discharge port, whereas when the first compressed air supply is stopped The shutoff plate, which is restricted by upward movement by 90 degrees or more, can be lowered and returned by its own weight to cover and block the air outlet.

Therefore, it is possible to prevent the foreign matter from flowing into the inside of the cylindrical casing when the first compressed air is not supplied.

Meanwhile, the first compressed air supply line 114 is connected to the upper cover, which is the upper surface of the cylindrical casing, to supply the first compressed air downward. However, the present invention is not limited to this, As shown in the figure, the first compressed air, which is connected to the coupling hole 114a protruding from the outer surface of the cylindrical casing and is in contact with the rotary blade to rotate the first hollow rotary shaft, can be forcibly supplied from the side of the cylindrical casing.

 Also, the first compressed air, which strikes the rotary vane 112 so as to rotate the first hollow rotary shaft 113 in one direction, is selectively installed on the outer surface perpendicular to the upper surface of the cylindrical casing, May be supplied through the first compressed air supply line (114).

And a support bar 119 rotatably provided on an outer surface of the cylindrical casing 111 and having a guide roller 118 that circumscribes the inner wall of the underground water chamber and rolls in a rolling manner, And an elastic member 118a that elastically supports the inner wall of the heart.

Accordingly, the rotation unit 110 safely descends into the inside of the underground water heart with the operation unit and the brush unit by the guide rollers circumscribed on the inner wall of the underground water heart, It can be.

At this time, since the brush part of the brush part 130 is in a state before expanded by the contracted packer in the outer diameter direction, the brush part can descend safely without causing the inner part of the underground water feelings to interfere with the rotating part.

The operation portion 120 includes a second hollow rotary shaft 121 to which the second compressed air is supplied and a packer 123 that is expanded in volume by the second compressed air. And a hollow pipe member having a predetermined length in which the lower end and the upper end of the first hollow rotary shaft 113 exposed to the lower portion of the cylindrical casing 110 are communicated with each other.

The second hollow rotary shaft 121 has an upper flange 121a at its upper end so as to be connected to a flange formed at a lower end of the first hollow rotary shaft 113, The second compressed air supply line 124 for passing the second compressed air generated by the compressor installed on the ground and supplying the compressed air to the second compressed air supply line 124 via the first hollow rotary shaft 113, And communicates with the two hollow rotary shaft 121.

The packer 123 is mounted on an outer surface of a second hollow rotary shaft formed through a plurality of air discharge holes 122 so as to communicate with an inner hole to which the second compressed air is supplied, And an expanding member made of a rubber material and extending.

The packer 123 may include a hollow cylindrical expansion tube member in which the air discharge hole 122 and the injection port formed on the inner surface are connected to communicate with each other to expand the volume of the air supply hole.

Accordingly, the second compressed air supplied through the first and second hollow rotary shafts 113 and 121 is discharged through the air discharge hole 122, and the packer 123 is discharged by compressed air supplied to the packer The volume expands and the outer diameter expands.

 The brush 130 extends the brush bristles 137 in the radial direction when the packer is expanded in volume and receives the rotational force of the first hollow rotary shaft 133 to rotate the brush 130 in one direction, Brushing to remove it.

The brush unit 130 includes upper and lower fixing plates 131 and 132 which are respectively disposed on the upper and lower portions of the packer 123 and fixed to the second hollow rotary shaft at regular intervals, The upper and lower fixing plates 131 and 132 are respectively formed with a plurality of upper and lower guide paths 131a and 132a extending in the radial direction with respect to the center hole formed at the center of the body.

The upper and lower ends of the vertical movement bars 135, which are vertically arranged between the upper and lower fixing plates 131 and 132 so as to be in contact with the outer surface of the packer, are formed in the upper and lower fixing plates in the radial direction, As shown in FIG.

In this case, the upper and lower guide paths 131a and 132a are formed to penetrate through the long and narrow holes of the upper and lower fixing plates in the radial direction from the center of the upper and lower fixing plates, but the present invention is not limited thereto, And may be formed as a groove having a predetermined length and formed to be recessed at a predetermined depth on the inner surfaces of the first and second plates 131 and 132 facing each other.

The center hole formed through the center of the body of the upper and lower fixing plates 131 and 132 may be integrally welded to the outer surface of the second hollow shaft 121 or may be integrally welded to the outer surface of the second hollow shaft And a female thread portion that is threadedly engaged with a male thread portion formed on the outer surface of the body of the second hollow rotary shaft may be formed and assembled.

The vertical movement bar 135, which is in contact with or adhered to the outer surface of the packer, is connected to one end of a connecting bar 134 having a predetermined length, and a brush plate 137 having a bristles 137 at the other end of the connecting bar. 136, respectively.

Upper and lower stoppers 131b and 132b may be respectively protruded from the inner surfaces of the upper and lower fixing plates 131 and 132 so as to restrict the movement of the brush plate 136 having the bristles. And the lower stoppers 131b and 132b are formed to protrude from the central portion of the inner surface of the upper and lower fixing plates facing each other to limit the movement of the brush plate that is returned to the inside. However, It is possible to restrict the movement of the brush plate which is also formed on the outer edge of the inner surface and moves in the radial direction.

At this time, the brush bristles 137 may be made of a metal wire or a resin wire so as to remove foreign substances adhering to the inner wall of the heart.

The vertically moving bars moved in the radial direction at the time of volume expansion of the packer are returned to the original state between the outer ends of the upper and lower guide paths 131a and 132a and the upper and lower ends of the vertical movement bar 135 And elastic members 133a and 133b for generating an elastic restoring force that can be generated by the elastic members 133a and 133b.

Each of the elastic members 133a and 133b has one end connected to an outer end of the upper and lower guide paths 131a and 132a formed in a long hole shape, And a coil spring to which the other end abuts.

When the expansion of the packer is stopped by disposing the second compressed air by disposing the elastic bodies 133a and 133b such as coil springs in the upper and lower guide paths 131a and 132a, The brush bristles are returned and moved in the inner diameter direction by the elastic restoring force of the elastic bodies 133a and 133b contracted by the vertical movement bar moved to the inner side.

The elastic members 133a and 133b are spring members inserted into the upper and lower guide paths. However, the elastic members 133a and 133b are not limited to the spring members. The elastic members 133a and 133b may be rubber materials As shown in FIG.

Accordingly, when the outer diameter of the packer provided in the through region of the second hollow rotary shaft increases due to the volume expansion of the packer due to the supply of the second compressed air, the vertical movement bar moves in the radial direction along the upper and lower guide paths The bristles of the plurality of brush plates divided in the circumferential direction are expanded in the radial direction, so that the ends of the brush bristles are brought into contact with the inner wall of the underground water heart.

In this state, the brush part 130 receives the rotational force of the rotary part generated when the first compressed air is supplied, and is forcibly rotated in one direction. As a result, the foreign matter attached to the inner wall of the heart, which is in contact with the brush- It is possible to remove the scratches.

The brush unit 130 may include a blurring unit 140 for generating an upward flow so that the foreign object removed by the brush bristle can be ground and discharged.

The blazing part 140 includes a rotary plate 141 fixed by a fixing member 142 fastened to a lower end of a second hollow rotary shaft exposed to a lower portion of the lower fixing plate, And a blade body 143 that is rotated in the same direction as the rotating portion and the brush portion and generates an upward flow to the brush body.

Accordingly, when the brush is rotated in one direction together with the rotary part, the rotary plate 141 mounted on the lower end of the second hollow rotary shaft is rotated in the same direction, and at the same time, An upward flow directed toward the brush part side is generated. The upward flow is passed between the brush part and the actual inner wall, and the foreign matter brushed and removed by the brush bristle can be blurred to the ground and discharged.

As shown in Figs. 9A to 9C, the operation of cleaning the inside of the groundwater centrality using the compressed air-based groundwater centrality cleaning apparatus 100 having the above-described configuration is performed by moving the rotating portion, the operating portion, and the brush portion from the ground surface And gradually descends into the inside of the heart (H) having a predetermined depth.

At this time, the second compressed air supply line (124) connected to the first hollow rotation axis of the rotary part is made of a hollow pipe member having a predetermined length, and is connected to the hollow pipe member And the second compressed air supply line is connected to the second compressed air supply line continuously in the vertical direction to descend into a target point of the underground water flow.

The rotating part, which is provided in the cylindrical casing of the rotating part and is in contact with the inner casing (C), which is the inner wall of the groundwater collecting chamber, is gradually positioned at the center of the inner casing and descends.

Also, since the brush 130 is in an initial state in which the brush bristles do not extend in the outer diameter direction by the contracted packer, the brush 130 can be safely lowered to the target point without being caught by the inner surface of the inner casing.

The first compressed air is supplied to the inside of the cylindrical casing through the first compressed air supply line 114 communicatively connected to the cylindrical casing, and the first compressed air is supplied to the inside of the cylindrical casing, The supplied first compressed air strikes the rotary vane and generates a driving force for rotating the first hollow rotary shaft in one direction.

The second compressed air is supplied to the packer through the second compressed air supply line, and when the packer is expanded in volume by the supplied compressed air, the vertical movement bar contacting the outer surface of the packer moves upward and downward The brush plate of the brush portion connected to the vertical movement bar and the guide bar is also moved in the radial direction so that the end portion of the brush model mounted on the brush plate is brought into contact with the inner surface of the inner casing.

In this state, since the brush part is rotated in one direction by the rotational force of the rotating part, foreign matter attached to the inner surface of the inner casing can be brushed and scraped off by the bristles contacting the inner surface and the end of the inner casing.

In addition, an upward flow is generated in the lower part of the brush part by the blades of the rotary plate rotated in the same direction as the brush part. Since the upward flow passes between the brush bristles and the inner casing, Is blurred and discharged to the ground.

Finally, the first and second compressed air supplied through the first and second compressed air supply lines rotate the brush portion extending in the radial direction to brush the inner surface of the inner casing to remove foreign substances, When the foreign object is blasted to the upper side by the upward flow of the blades and discharged to the ground to finish the inner wall cleaning work for the inside of the heart, the first and second compressed air supply through the first and second compressed air supply lines The second compressed air supply line is gradually lifted up to the ground to safely recover the rotating portion, the operating portion, and the brush portion to the ground.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

110:
111: Cylindrical casing
112: rotating blade
113: first hollow rotary shaft
114: first compressed air supply line
116:
117: Air outlet
120:
121: second hollow rotary shaft
123: Packer
124: Second compressed air supply line
130: Brush part
131, 132: upper and lower fixing plates
133a and 133b:
134: Connection bar
135: vertical movement bar
136: Brush plate
137: Brush Mo
140: Blur Wing
131:
142: Fixing member
143: The object of the day

Claims (8)

1. A cleaning device for removing foreign matters adhering to the inside of a groundwater aquarium,
A first compressed air supply line communicably connected to the cylindrical casing so as to supply a first compressed air which is rotatably provided in an inner space of the cylindrical casing and has a plurality of rotating blades, A rotation unit for generating a rotational force for rotationally driving the first hollow rotary shaft;
And a packer mounted on an outer surface of a second hollow rotary shaft having a second hollow rotary shaft through which the lower end and the upper end of the first hollow rotary shaft exposed to the lower portion of the cylindrical casing are communicatively connected and formed with a plurality of air discharge holes, And a second compressed air supply line communicating with an upper end of the first hollow rotary shaft so as to supply second compressed air to the inner hollow of the second hollow rotary shaft through the first hollow rotary shaft, An operating portion for expanding the packer by the compressed air;
And upper and lower fixing plates fixedly installed on the second hollow rotary shaft at predetermined intervals and having upper and lower ends of a plurality of vertical moving bars arranged to be in contact with the outer surface of the packer are formed in the upper and lower fixing plates in a radial direction And a brush bar having a brush bristle at the other end of the connecting bar connected to one end of the vertical movement bar is integrally provided so that the brush bristles are expanded in the outer diameter direction when the packer is expanded in volume, A brush unit that receives the rotational force of the first hollow rotary shaft and brushes the inner wall of the heart of the heart; Lt; / RTI >
The upper and lower guide paths may be elongated holes formed in a radial direction from the center of the upper and lower fixing plates or a groove having a predetermined length formed in the inner surfaces of the upper and lower fixing plates,
And an elastic body disposed between one end of each of the upper and lower guide paths and the upper and lower ends of the vertical movement bar and contracted to have elastic restoring force when the packer is expanded in volume,
And an upper and a lower stopper protruding from the inner surface of the upper and lower fixing plates so as to restrict movement of the brush plate,
Further comprising a blurring portion for generating an upward flow so that foreign matter removed by the brush bristle can be blurred and discharged to the ground,
Wherein the bling portion includes a rotating plate fixedly installed by a fixing member fastened to a lower end of a second hollow rotary shaft extending a predetermined length to a lower portion of the lower fixed plate and an upflow flow when rotated in the same direction as the rotary portion and the brush portion And a blade member provided on an upper surface of the rotating plate,
Wherein the cylindrical casing includes upper and lower covers for covering and sealing the opened upper and lower ends of the hollow cylindrical body, and bearing members for rotatably supporting the first hollow rotary shaft on the upper and lower covers,
Wherein the upper cover includes an air outlet formed so as to discharge the first compressed air supplied to the inside of the cylindrical casing to the outside, and is rotatably assembled to the air outlet through a pin member, A blocking plate for preventing foreign matter from flowing into the cylindrical casing when being supplied, and a stopper for restricting upward turning of the blocking plate by 90 degrees or more,
Wherein the first compressed air supply line is connected to the upper surface of the cylindrical casing so as to downwardly supply the first compressed air striking the rotary vane or to the outside of the cylindrical casing so as to supply the first compressed air, Wherein the brush is connected to a connection port protruding from a surface of the ground. delete delete delete delete delete delete delete

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