KR100706616B1 - Apparatus of repairing pipe and repairing method there of it - Google Patents

Abstract

The present invention is largely divided into grinding and plastering, wherein the grinding is the main body is formed in the size and shape that can be entered into the tube, the grinding means coupled to the front end of the entry direction, and the pipe through the reciprocating motion Fastening means composed of a structure that can be in close contact with the inner wall, the transfer cylinder for connecting the main body and the fixing means and at the same time to adjust the distance between the main body and the fixing means, the upper side of the tube to prevent the rolling and pitching of the main body It is configured to include a suspension means coupled to the main body to be in close contact with the inner wall. In addition, the plastering is a main body formed in a size and shape that can be entered into the tube, the plastering means for applying various adhesives or finishes on the inner wall of the tube, the fixing means consisting of a structure that can be in close contact with the inner wall of the tube through a reciprocating motion; A transfer cylinder which connects the main body and the fixing means and adjusts the distance between the main body and the fixing means, and a suspension means coupled to the main body so as to be in close contact with the upper inner wall of the tube to prevent the rolling and pitching of the main body. It is configured to include. On the other hand, the sewage pipe maintenance method using the device, the step of entering the crushing sewage pipe maintenance apparatus into the tube, and using the grinding means of the sewage pipe maintenance device to crush the sediment laminated on the inner wall of the pipe; And brushing the inner wall of the sewer pipe using the crushing means of the sewer pipe maintenance device, entering the sewer pipe maintenance device for the plastering into the pipe, and using the plastering means of the sewer pipe maintenance device to glue the inner wall of the pipe. Or applying a finish. Therefore, the present invention is configured to smoothly move inside the sewer pipe regardless of the type of deposit, and to replace only a part including the cutter blade without replacing the entire grinding means when the cutter blade is worn, the grinding means is rotated Even if the main purpose is to provide a sewage pipe maintenance device configured to not shake the main body and sewage pipe maintenance method using the same.

Sewer pipe, cleaning, sediment, cylinder, cutter, suspension

Description

Apparatus of repairing pipe and repairing method there of it}

1 is a perspective view of a conventional sewage pipe maintenance device.

Figure 2 is a perspective view of the sewage pipe maintenance apparatus for grinding according to the present invention.

3 is an exploded perspective view of FIG. 2.

Figure 4 is a perspective view showing a coupling structure of the rotary plate and the cutter applied to the present invention.

Figure 5 is a cross-sectional view showing a coupling structure of the rotary plate and the cutter applied to the present invention.

Figure 6 is a perspective view showing another embodiment of the grinding means of the crushing sewage pipe maintenance apparatus.

7 is an exploded perspective view of FIG. 6.

8 is a cross-sectional view showing the configuration of a suspension means applied to the present invention.

Figure 9 is a perspective view of the plastering sewage pipe maintenance apparatus according to the present invention.

10 is an exploded perspective view of FIG. 9;

11 to 13 is a process chart showing a sewer pipe maintenance process using the sewer pipe maintenance apparatus according to the present invention.

* Description of the symbols for the main parts of the drawings *

100: main body 110: drive wheel

120: camera 130: guide piston

140: vertical rod 200, 600: grinding means

210, 610: Motor 220, 620, 820: Rotating plate

230: cutter 240: cutter blade

300: fixed means 310: fixed cylinder

320: contact plate 400: transfer cylinder

410: transfer piston rod 500: control box

700: suspension means 710: wheel frame

720: suspension wheel 730: suspension gas spring

800: plastering means 810: transfer pipe

830: rotating body 840: cover

The present invention relates to a sewage pipe maintenance apparatus and a method for removing the sediment deposited on the sewage pipe, specifically, to increase the moving force inside the sewage pipe, and is configured to replace the cutter blade for crushing the sediment Sewage pipe maintenance device.

In general, sewage pipes are mostly buried underground to discharge various sewage, and after a certain time, various weights and soils are stacked inside, and sediments are formed, and these sediments obstruct the flow of sewage, so they are regularly removed. Should be.

As a means for cleaning the sewer pipes, there is a jet nozzle method using a high pressure or a bucket reciprocating dog method, but such a method has a small working space because the power source is excessively consumed and its size is large enough to be transported only by a vehicle. There was a disadvantage in that it is inconvenient to use.

In order to solve the above problems, a sewage pipe maintenance device (application number: 10-2003-0048922) for crushing the sediment using a rotating grinding means has been devised by the applicant.

Hereinafter, a conventional sewer pipe maintenance apparatus will be described with reference to the accompanying drawings.

1 is a perspective view of a conventional sewage pipe maintenance apparatus, showing a shape in which derivatives are separated in order to make the shape of the grinding means more clear.

As shown in FIG. 1, a conventional sewage pipe maintenance apparatus includes a main body 10 for wiring and control of each part, a motor 20 coupled to a front surface of the main body 10, and rotational force of the motor 20. A driving wheel that is coupled to both sides of the main body 10 and is rotated by applying the rotational force of the motor 20 to rotate the main body 10 in a horizontal direction by being applied and rotated to crush the sediment in the sewage pipe. 40 is comprised of.

Crushing means 30 is a rotary blade 32 coupled to the rotating shaft of the motor 20, and a cutter blade for crushing the deposit by being formed of a high hardness material such as industrial diamond and coupled to the front surface of the rotary plate 32 ( 34).

After the user enters the sewer pipe maintenance device into the sewer pipe, the user drives the motor 20 to rotate the grinding means 30 and the driving wheel 40 to control the sewer pipe maintenance device to crush the sediment while advancing forward. .

However, in the conventional sewage pipe maintenance apparatus having the above structure, when the sediment having a slippery property such as mud or oil lumps is stacked inside the sewer pipe, the driving wheel 40 will be idle, so that it will move forward. There are many difficulties in. As such, when the forward operation is not smooth, the force for close contact of the crushing means 30 to the sediment is lowered, so that the crushing process of the sediment cannot be performed normally.

In addition, when the cutter blade 34 is worn due to the increase in the number of times of use, only the cutter blade 34 cannot be replaced, and thus the entire grinding means 30 must be replaced.

In addition, the conventional sewage pipe maintenance apparatus has a disadvantage in that precise operation is difficult because the main body 10 cannot be prevented from shaking as the grinding means 30 rotates.

Therefore, the present invention is to solve the above-mentioned problems, regardless of the type of sediment is smooth movement inside the sewer pipe, when the cutter blade is worn can replace only a part including the cutter blade without replacing the entire grinding means. The purpose of the present invention is to provide a sewage pipe maintenance apparatus configured to be installed so as to maintain the sewage pipe using the same.

Still another object of the present invention is to provide a sewage pipe maintenance apparatus and a sewage pipe maintenance method using the same, which is configured such that the main body does not shake even when the grinding means rotates.

The sewage pipe maintenance apparatus of the present invention for achieving the object as described above is largely divided into a grinding and plastering bar, the first and second embodiments to be described later correspond to the grinding, and the third embodiment is plastering It is a dragon.

The crushing sewage pipe maintenance apparatus includes a main body formed in a size and shape that can be entered into a pipe, a crushing means coupled to the front end of the main body of the main body, and a structure capable of being in close contact with the inner wall of the pipe through a reciprocating motion. Suspension coupled to the main body so as to be in close contact with the upper inner wall of the tube to connect the means, the main body and the fixing means and at the same time to adjust the distance between the main body and the fixing means, to prevent the rolling and pitching of the main body It comprises a means.

In addition, the sewage pipe maintenance apparatus for plastering, the main body is formed in the size and shape that can be entered into the tube, the plastering means for applying various adhesives or finishes on the inner wall of the tube, and the structure that can be in close contact with the inner wall of the pipe through the reciprocating motion The fixing means, the transfer cylinder for connecting the main body and the fixing means and at the same time to adjust the distance between the main body and the fixing means, the main body to be in close contact with the upper inner wall of the tube to prevent the rolling and pitching of the main body It comprises a suspension means to be coupled.

On the other hand, the sewage pipe maintenance method using the sewage pipe maintenance device of the present invention, the step of entering the crushing sewage pipe maintenance device into the pipe, the sediment stacked on the inner wall of the pipe using the grinding means of the sewage pipe maintenance device; Pulverizing, brushing the inner wall of the sewer pipe using the grinding means of the sewer pipe maintenance device, entering the sewer pipe maintenance device for the plastering into the pipe, and using the plastering means of the sewer pipe maintenance device. Applying an adhesive or finish to the inner wall of the tube.

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

Figure 2 is a perspective view of the sewage pipe maintenance apparatus for grinding according to the present invention, Figure 3 is an exploded perspective view of FIG.

As shown in Figures 2 and 3, the crushing sewage pipe maintenance apparatus according to the present invention is formed in a size and shape that can be entered into the sewage pipe, a pair of driving so that the entry operation can proceed more smoothly on both sides A main body 100 having a wheel 110 and having a camera 120 coupled with a photographing direction toward an entrance direction so that a user can see a working situation inside the sewer pipe outside the sewer pipe; Crushing means (200) coupled to the front end of the main body (100) to crush sediment in the sewer pipe; Fixing means 300 is configured to be in close contact with the inner wall of the tube through a reciprocating motion; Both ends are coupled to the main body 100 and the fixing means 300, respectively, the transfer cylinder 400 for adjusting the distance between the main body 100 and the fixing means 300; A control box 500 configured to enable signal input for controlling the operation of each unit outside the sewage pipe; It comprises a suspension means 700 which is coupled to the main body 100 to be in close contact with the upper inner wall of the sewage pipe to prevent the rolling and pitching phenomenon of the main body 100.

In addition, the main body 100 further includes a pair of guide pistons 130 connected to the transfer cylinder 400 so as to be parallel to the operation direction of the transfer cylinder 400. At this time, the guide piston 130 is a device for guiding the transport path of the main body 100, not independently driven structure, is coupled to the main body 100 to have the same height as the center line of the sewage pipe. Therefore, the main body 100 can perform a linear movement along the guide piston 130 without trembling or vibration when the main body 100 is transferred by the driving of the transfer cylinder 400.

Grinding means 200, the motor 210 is coupled to the main body 100 so that the rotating shaft (not shown) in the direction of entry of the main body 100, and one side of the central portion so as to protrude in the entry direction of the main body 100 Rotating plate 220 coupled to the rotating shaft of the motor 210 and the side of the rotating plate 220 coupled to the motor 210 coupled to the removable structure to form a radial around the rotation axis of the rotating plate 220 It comprises a plurality of cutters 230, and a cutter blade 240 formed of a material having a high hardness, such as industrial diamond so as to more effectively crush the deposits are coupled to the ends of each cutter (230).

In addition, the rotating plate 220 is composed of a ring-shaped outer ring 222 and the rim 224 coupled to form a radial with respect to the center, the sediment crushed by the cutter 230 and the cutter blade 240 is Through the space between the rim 224 and the rim 224 can be easily withdrawn to the rear of the main body 100. At this time, the rim 224 has a high end of the outer side of the outer ring 222 and the end of the outer side of the outer ring 222 is formed low, the cutter 230 is coupled to the removable end of the outer end of the rim 224. Therefore, the grinding means 200, since the overall shape is formed in a conical shape in which the outer center portion protrudes, it is possible to crush the deposit more easily.

In the present embodiment, the grinding means 200 is provided with six cutters 230 to which seven cutter blades 240 are coupled, but the number of cutters 230 and cutter blades 240 is not limited thereto. It can be changed in various ways depending on the application.

The fixing means 300 includes a fixed cylinder 310 having a pair of fixed piston rods 312 extending upward and downward, and a pair of fixed piston rods 312 formed in a shape in close contact with the inner wall of the tube. It is configured to include a pair of contact plates 320 respectively coupled to the ends.

At this time, the number of the fixed piston rod 312 provided in the fixed cylinder 310 is not limited to a pair as in this embodiment, three or more so that the fixing means 300 can be more securely fixed to the inner wall surface of the sewer pipe Can be changed to many. In addition, the fixed piston rod 312 is a structure in which the close contact plate 320 coupled to the end can be in close contact with the inner wall of the sewer pipe, the extension direction is not limited only to the vertical direction can be applied to various changes in the horizontal direction and the radial direction have.

In addition, the transfer cylinder 400 is configured to include a transfer piston rod 410 extending in the entry direction of the main body 100, so that the transfer piston rod 410 is drawn in and out of the transfer cylinder 400. And the distance between the main body 100 and the fixing means 300 is adjusted as it is drawn.

Figure 4 is a perspective view showing a coupling structure of the rotary plate and the cutter applied to the present invention, Figure 5 is a cross-sectional view showing a coupling structure of the rotary plate and the cutter applied to the present invention.

As shown in Figure 4 and 5, the rotating plate 220 is formed on the rear of the rotating shaft coupling sphere 226 is coupled to the rotating shaft of the motor 210, the rim 224 is the surface on which the cutter 230 is seated A plurality of fasteners 228 having a female thread formed therein are provided, and the cutter 230 has a through hole 232 having a female thread formed at a portion corresponding to the fastener 226. Thus, the cutter 230 is coupled to the removable plate 220 by a coupling bolt 236 that penetrates the through hole 232 and is coupled to the fastener 226. At this time, the through hole 232 and the fastener 226 is preferably formed between the coupling position of the cutter blade 240 to facilitate the fastening of the coupling bolt 236.

When the cutter 230 is coupled to the rotating plate 220 in a detachable structure as described above, when the cutter blade 240 is worn due to an increase in the number of times of use, the entire grinding means 200 is removed as in the conventional sewer pipe drilling and boring device. Since only the cutter 230 can be replaced without the need for replacement, there is an advantage in that the maintenance cost can be reduced by reducing the depreciation cost of the parts.

 In addition, the compressed water supplied from the outside through the compressed water supply pipe 250 shown in FIG. 2 is injected into the main body 100 in the inlet direction, the cutter 230 enters the main body 100 between the cutter blades 240. The injection hole 234 penetrates in the direction, and the compressed water supply line 229 is formed in the rotary plate 220 at the outlet corresponding to the through hole 232.

Therefore, the compressed water supplied through the compressed water supply pipe 250 is injected toward the deposit through the injection port 234 via the compressed water supply line 229, and the compressed water wets the deposit, thereby allowing the cutter 230 to wet the deposit. The sediment can be easily pulverized and at the same time, the frictional heat generated in the cutter blade 240 during the grinding operation is reduced, and the sediment crushed by the cutter 230 flows out of the sewer pipe.

The outlet position of the compressed water supply line 228 may be variously changed, and as shown in FIG. 5, the outlet may be additionally formed at the center of the rotating plate 220.

Figure 6 is a perspective view showing another embodiment of the grinding means of the crushing sewage pipe maintenance apparatus, Figure 7 is an exploded perspective view of FIG.

As shown in FIGS. 6 and 7, another embodiment 600 of the grinding means includes a motor 610 coupled to the main body 100 so that the rotating shaft 612 faces the entry direction of the main body 100, and the main body ( One side of the central portion to protrude in the entry direction of the 100 is composed of a rotating plate 620 coupled to the rotating shaft of the motor 610, and a brush 630 coupled to partially protrude to the outside of the rotating plate 620. In this case, a plurality of coupling holes 622 are radially formed in the rotation plate 620, and the brush 630 is inserted into and fixed to the coupling holes 622.

On the other hand, as described above, the brush 430 is coupled to partially protrude to the outside of the rotating plate 420. In other words, the outer circumferential surface of the brush 430 is coupled to protrude outward than the outer circumferential surface of the rotating plate 420. When the rotating plate is rotated the brush is in contact with the inner wall of the sewer pipe to brush.

The crushing means 600 configured as described above is to improve the adhesion of various adhesives or finishes applied to the inner wall of the sewage pipe from which the sediment is removed, and the sediment is removed by the crushing means 200 shown in FIGS. 2 to 5. It is put in the sewage pipe which is brushed and brush or scratch the inner wall of sewage pipe.

Although the six brushes 630 are illustrated to be coupled to the rotating plate 620 in the present embodiment, the number of the brushes 630 is not limited thereto and may be variously changed according to a user and a purpose. In addition, the center axis of the crushing means 600 is coupled to the rotation axis and the rotation axis of the motor 610, the coupling method has a variety of known methods, so a detailed description thereof will be omitted.

8 is a cross-sectional view showing the configuration of a suspension means applied to the present invention.

As shown in FIG. 8, the suspension means 700 applied to the present invention includes a wheel frame 710 coupled to the upper surface of the main body 100 in a structure capable of sliding upward, and an entrance direction of the main body 100. The suspension wheel 720 and the suspension wheel 720 are coupled to the wheel frame 710 so that the rotation shaft is fixed to the wheel frame 710, and the elastic wheel is applied to the wheel frame 710 in a direction in which the upper wheel is in close contact with the inner wall. It is configured to include a suspension gas spring 730.

At this time, the upper surface of the main body 100, is protruded vertically upward to be inserted into the wheel frame 710, the vertical rod 140 is provided with a horizontal head 142 is formed at the upper end.

Therefore, the wheel frame 710 is coupled to the main body 100 in a structure capable of sliding movement in the vertical direction along the vertical rod 140, the suspension gas spring 730 is between the main body 100 and the wheel frame 710 It is coupled to push the wheel frame 710 upward.

In the case of using a conventional sewer pipe drilling and boring device, the pitching phenomenon of the main body 10 swinging back and forth or the rolling phenomenon of shaking from side to side occurs as the grinding means 30 rotates. Not only the entry process is not smooth, but the crushing means 30 frequently causes damage to the sewer pipe.

However, sewage pipe excavation and boring device according to the present invention, the suspension means 700 as described above is further provided by the driving wheel 110 on both sides and the suspension wheel 720 on the upper and left and right and up and down positions inside the sewer pipe Is stably fixed, even if the grinding means (200, 600) is rotated there is an advantage that the phenomenon that the main body 100 is pitched (Pitching) and rolling (Rolling) does not occur.

In addition, the sewage pipe excavation and boring device according to the present invention, even if the vertical position of the main body 100 is moved slightly upward as the driving wheel 110 traverses the foreign matter inside the sewage pipe, the suspension wheel 720 and the main body Since the distance between the 100 is elastic and reduced by the distance that the main body 100 is moved upward, the impact is not applied.

In the present embodiment, the suspension means 700 is configured to slide vertically upward, but the direction and number of the suspension means 700 is not limited thereto and may be variously changed.

9 is a perspective view of the apparatus for maintaining the sewer pipe for plastering according to the present invention, and FIG. 10 is an exploded perspective view of FIG. 9.

9 and 10, the apparatus for cleaning sewage pipes according to the present invention is formed in a size and a shape that can be entered into the sewer pipe, and a pair of driving wheels to allow the entry operation to proceed more smoothly on both sides. 110 is provided, the main body 100 having a camera 120 is coupled so that the shooting direction is directed toward the entry direction so that the user can see the working situation inside the sewer pipe from the outside of the sewer pipe, and various adhesives or A plastering means 800 for applying a finish material; The fixing means 300 and the two ends are coupled to the main body 100 and the fixing means 300 by reciprocating motion to be in close contact with the inner wall of the tube, thereby reducing the distance between the main body 100 and the fixing means 300. The transfer cylinder 400 to be adjusted, the control box 500 is configured to enable a signal input for the operation control of each part outside the sewer pipe, and to the upper inner wall of the sewage pipe to prevent the rolling and pitching of the main body 100 It is configured to include a suspension means 700 is coupled to the main body 100 to be in close contact.

Here, the remaining components except for the plastering means 800 is made of the same configuration as described above, a detailed description thereof will be omitted.

The plastering means 800 is a transport pipe 810 is formed to be hollow to allow the introduction of mortar from the outside, a rotating plate 820 formed in the front end of the transport pipe 810, and the transport pipe 810 ) And a rotating body 830 in which mortar is temporarily stored, and a cover 840 for controlling the ejection amount of the mortar. The rotating body 830 has a rectangular cross section, and openings 832 are formed at both sides in a horizontal direction, and the cover 840 is hinged to the opening 832. That is, when the rotating body 830 rotates, the cover 840 opens around the hinge by centrifugal force, and the opening amount increases as the rotation speed of the rotating body 830 increases. Therefore, the plastering means 800 may open or close the cover 840 by the rotation of the rotating body 830, and may adjust the amount of mortar ejected by adjusting the rotational speed of the rotating body 830. .

Meanwhile, in the present embodiment, the cross-sectional shape of the rotating body 830 is illustrated as a square, but the present invention is not limited thereto and may be manufactured in a circular or other shape. In addition, the plurality of coupling holes 822 are formed in the rotating plate 820, and the brush 850 may be additionally mounted.

11 to 13 is a process diagram showing a sewer pipe maintenance process using the sewer pipe maintenance apparatus according to the present invention. Referring to the drawings, a sewer pipe maintenance method using the sewer pipe maintenance apparatus according to the present invention will be described below.

The sewer pipe maintenance method using the sewer pipe maintenance apparatus according to the present invention includes the steps of entering the sewer pipe maintenance device for crushing into the sewer pipe (P); Grinding the sediment deposited on the inner wall of the sewage pipe (P) by using the grinding means (200) of the crushing sewage pipe maintenance apparatus; Brushing the inner wall of the sewage pipe (P) using the grinding means 600 of the sewage pipe maintenance device for grinding; Entering the sewage pipe maintenance apparatus for the plastering into the sewer pipe (P); It consists of applying an adhesive or finishing material to the inner wall of the sewer pipe (P) using the plastering pipe maintenance device.

In more detail, as shown in FIG. 11, in order to grind sediment accumulated in the sewer pipe (P), the sewage pipe maintenance apparatus 1000 for grinding is introduced into the sewer pipe (P). When the pulverization means 200 of the first embodiment 1000 is entered and the sewage pipe maintenance device 1000 for pulverization is advanced in the direction of the arrow in the drawing along the sewer pipe P, the pulverization means 200 The sediment in the sewer pipe P is removed by this.

When the pulverization work of the sediment by the crushing sewage pipe maintenance device 1000 is completed, the sewage pipe maintenance for crushing equipped with the grinding means 600 shown in Figs. 6 and 7 in the sewer pipe (P) as shown in FIG. After entering the apparatus 2000, the crushing means 600 of the crushing sewage pipe maintenance apparatus 2000 is operated as in the crushing operation, and the second embodiment 2000 proceeds in the direction of the arrow along the sewer pipe. The inner wall of sewage pipe P is brushed or scratched by doing so. The reason for brushing or scratching as described above is to improve the adhesiveness of various adhesives or finishes applied to the inner wall of the sewer pipe (P) during the post-working plastering work.

Plastering sewage pipe combined with a plastering means 800 to repair the damaged part inside the sewer pipe P as shown in FIG. 13 when the brushing or scratching operation by the crushing sewage pipe maintenance device 2000 is completed. After entering the maintenance device 3000, the plastering means 800 is operated to apply mortar to the inner wall of the sewer pipe P, thereby completing the maintenance and repair of the sewer pipe using the sewer pipe maintenance device of the present invention.

As described above, the configuration, operation and process of the sewage pipe maintenance apparatus and the method according to the preferred embodiment of the present invention are shown in accordance with the above description and drawings, but this is merely described as an example and the technical spirit of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing.

As described above, according to the present invention, the sewage pipe maintenance apparatus and the method may move smoothly even if slippery deposits such as mud or oil remain inside the sewage pipe, and when the cutter blade is worn, only a part including the cutter blade without replacing the entire grinding means. By replacing the not only easy maintenance and repair, but also has the advantage of reducing the maintenance cost.

In addition, using the sewage pipe excavation and boring device according to the present invention, since the main body does not shake even when the grinding means rotates, there is an advantage that the entry into the sewer pipe and precise operation is possible.

Claims (15)

A main body formed to have a size and a shape that allows entry into the tube; Grinding means coupled to the front end of the main body in the entry direction; Fixing means configured to be in close contact with the inner wall of the tube through a reciprocating motion; A transfer cylinder which connects the main body and the fixing means and adjusts a distance between the main body and the fixing means; Suspension means coupled to the main body to be in close contact with the upper inner wall of the tube to prevent the rolling and pitching of the main body; Sewer pipe maintenance device characterized in that comprises a. The method of claim 1, The fixing means includes a fixing cylinder having a fixing piston rod extending toward the inner wall of the tube, and a close contact plate coupled to the end of the fixing cylinder at a portion in contact with the inner wall of the tube and formed to be in close contact with the inner wall of the tube. Sewer pipe maintenance device, characterized in that configured to. The method of claim 2, The fixed piston rod is coupled to the fixed cylinder in a pair to extend in the opposite direction along the radial direction of the pipe, the contact plate is connected to the outer end of each of the fixed piston rod Repair device. The method of claim 1, The suspension means, the wheel frame is coupled to the structure capable of sliding upward movement on the upper surface of the main body, the suspension wheel is configured to be configured to rotate in the direction of entry of the main body and the rotating shaft is fixed to the wheel frame, The sewer pipe maintenance device characterized in that it comprises a suspension gas spring for applying an elastic force to the wheel frame in the direction in which the suspension wheel is in close contact with the upper inner wall of the pipe. The method of claim 1, The grinding means includes a motor coupled to the main body such that the rotating shaft faces the entry direction of the main body, a rotating plate coupled to the rotating axis of the motor, and a rotation axis of the rotating plate on the side of the rotating plate of the main direction of the main body. Sewage pipe maintenance device comprising a plurality of cutter blades coupled to the removable structure to form a radial, and a plurality of cutter blades coupled to the ends of each cutter. The method of claim 5, The rotating plate is a sewage pipe maintenance device, characterized in that the compressed water supply line for injecting the compressed water supplied from the outside in the main body entry direction is formed therein. The method of claim 6, The cutter is formed between the cutter blade injection port penetrating in the entry direction of the main body, the compressed water supply line is formed so that the outlet is located on one side of the rotating plate corresponding to the injection hole when combined with the cutter Sewage pipe maintenance device characterized in that. The method of claim 5, The rotating plate, the sewage pipe maintenance device characterized in that it comprises a ring-shaped outer ring, and a rim formed to form a radial with respect to the center of the outer ring is coupled to the cutter. The method of claim 8, The cutter is formed in a portion through which the female thread is formed on the inner wall contact with the rim, the rim is provided with a plurality of fasteners in which the female thread is formed on the inner wall corresponding to the through hole, the cutter And the rim is sewer pipe maintenance device characterized in that coupled to the removable structure by the coupling bolt coupled to the fastener through the through hole. The method of claim 9, The through hole is a sewer pipe maintenance device, characterized in that formed between the point where the cutter blade is coupled. The method of claim 1, The crushing means is a sewage pipe maintenance device, characterized in that consisting of a rotary plate rotatably coupled to the main body, and a brush coupled to protrude to the outside of the rotating plate. A main body formed in a size and a shape that can be entered into the tube; Plastering means for applying various adhesives or finishes on the inner wall of the pipe; Fixing means configured to be in close contact with the inner wall of the tube through a reciprocating motion; A transfer cylinder which connects the main body and the fixing means and adjusts a distance between the main body and the fixing means; Suspension means coupled to the main body to be in close contact with the upper inner wall of the tube to prevent the rolling and pitching of the main body; Sewer pipe maintenance device characterized in that comprises a. The method of claim 12, The plastering means may include a transfer tube having an opening formed in the sidewall and hollowed out so that the adhesive or the finishing material supplied from the outside may be transferred, and a communication hole communicating with the transfer tube and having a predetermined space therein and having openings formed at both sides thereof. The sewage pipe maintenance device, characterized in that consisting of a cover coupled to the whole and opening and closing the opening. The method of claim 13, The cover is a sewer pipe maintenance device, characterized in that the hinge is coupled to open and close automatically when the rotating body rotates. Entering the sewer pipe maintenance device according to any one of claims 1 to 11 into the pipe; Pulverizing the deposit deposited on the inner wall of the pipe by using the grinding means of the sewer pipe maintenance device; Brushing the inner wall of the sewage pipe using the grinding means of the sewage pipe maintenance device; Entering the sewer pipe maintenance device according to any one of claims 12 to 14 into the pipe; Applying an adhesive or finishing material to the inner wall of the pipe by using plastering means of the sewer pipe maintenance device; Sewer pipe maintenance method characterized in that consisting of.

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