KR200407553Y1 - Non Excavated Sewer Pipe Repair Machine - Google Patents

Abstract

The present invention relates to a non-excavated sewer pipe maintainer which is suitable for completely sealing the leakage of air while preventing the detachment of the band for fixing the tube.

According to the present invention, a cylindrical main body having an injection hole for injecting air, is provided in close contact with the outer peripheral surface of the main body, the tube is expanded by the air introduced through the injection hole, is installed on one end and the other end of the tube, respectively It is characterized in that it comprises a band to prevent the separation of the tube, and 'band departure prevention member' is installed on both ends of the outer peripheral surface of the main body, to prevent the separation of the band. According to the configuration as described above, there is an effect that can prevent the separation of the band and further block the leakage of air.

Sewer, Repairer, Non-Excavated, Lining

Description

A Repair Apparatus for Gutter Lining}

BRIEF DESCRIPTION OF THE DRAWINGS It is a state diagram of the use of the non-excavation sewer pipe maintainer by a prior art.

It is a perspective view of the band clip in the non-excavation sewage pipe repair machine by a prior art.

It is a perspective view of the band clip in the non-excavation sewer pipe maintainer by other prior art.

3 is a perspective view and an enlarged view of a main part and an enlarged view of a main part of a non-excavation sewer pipe repair device according to an embodiment of the present invention.

4 is a perspective view of the band clip and the pressing piece in FIG. 3.

FIG. 5 is a partial longitudinal cross-sectional view of part A of FIG. 3.

6a and 6b is an operation of the non-excavation sewer pipe maintenance machine according to an embodiment of the present invention.

7 is a cross-sectional view of a non-excavation sewer pipe maintenance machine according to another embodiment of the present invention.

         Explanation of symbols on the main parts of the drawings

10, 30; Non Excavated Sewer Pipe Repair Machine

100, 300; Main body 120, 320; tube

130, 330; Band 140, 340; Band clip

342; Pushing

310, 310a, 310b, 310c; flange

TECHNICAL FIELD The present invention relates to a non-drilling sewer repairer, and more particularly, to an unexcavated sewer repairer that is suitable for completely preventing the leakage of air while preventing the detachment of the band for fixing the tube.

In general, sewage pipes such as a chest tube of concrete or a conduit of synthetic resin are buried underground, causing cracking and breakage due to aging of the pipe itself or settlement of the ground.

As such, sewage and wastewater are leaked due to the damaged sewage pipes, and the soil is contaminated.

However, since most sewage pipes cannot be repaired by workers directly, there are various 'non-excavated sewage pipe repairing methods' (so-called 'lining methods') that mount repair materials on the outer circumferential surface of water repair machines and apply them to damaged areas. Has been developed and used.

Figure 1 shows the state of use of the conventional non-drilling sewer pipe maintenance machine, Figure 2a is a perspective view of the band clip in the conventional non-drilling sewer pipe maintenance machine, Figure 2b is shown in other prior art Is a perspective view of a band clip in a non-excavated sewer pipe maintainer.

As shown in FIG. 1, the non-excavated sewer pipe maintainer 10 according to the prior art includes a cylindrical body 100 having an air inlet 102 through which air is injected, and an outer circumferential surface of the body 100. It is composed of a rubber tube 120 that is in close contact and expands by the air injected into the inside, and a band 130 for preventing separation when the tube 120 is expanded. The band 130 is fixed by the band clip 140.

By the configuration as described above, the water retainer 10 is applied to the surface of the tube 120, the repair fluid RL is moved into the sewer pipe (SP) damaged by the moving wheel 104, the tube 120 As air is injected into the tube 120, the tube 120 is expanded to line the sewage pipe SP in which the repair liquid RL on the outer circumferential surface thereof is broken.

However, the non-excavation sewer repair device according to the prior art as described above has the following problems.

First, when the tube 120 is expanded by injecting air between the main body 100 and the tube 120 for construction, the band 130 is pushed to the side by the expanded tube 120 is injected air There was a problem of leaking.

Furthermore, when the amount of air injected is increased to increase the expansion force applied to the tube 120, as shown in FIG. 1, the band 130 is eventually separated from the main body 100.

When the band 130 is separated by the expansion of the tube 120 as described above, the air injected between the tube 120 and the main body 100 is missing, which leads to a serious problem that the repair work cannot be performed itself.

And, the problem of detachment of the band 130 as described above, even if the band is firmly fixed to the band clip 140, because the expansion force applied to the tube 120 is very large, the band 130 is pushed and air is leaked Further, the band 130 could not be prevented from being separated.

Second, the band clip 140 according to the related art should necessarily include the wing portions 140a and 140b. Due to the configuration of the wing portions 140a and 140b of the band clip 140, the rubber tube 120 There was a problem that tears).

That is, as the tube 120 expands, the tube 120 around the band 130 swells almost vertically in the band 130, at which time the inner wing 140b of the band clip 140. Due to the sharp shape of the tube 120 is torn.

The problem that the tube 120 is torn by the wing portion 140b as described above, the shape of the wing portion (140a, 140b) of the band clip 140 is bent upward as shown in FIG. Even if there is a configuration that could not avoid the problem that the tube 120 is torn.

The present invention was created to solve the problems of the prior art as described above, and the purpose of the non-excavation sewer pipe repair device according to the present invention is to prevent the leakage of the injected air by the configuration of the 'band separation prevention member' and the tube It is to provide a non-drillable sewer refiller that is suitable to prevent the band for fixing to escape during tube expansion.

Another purpose of the non-excavated sewage pipe repair device of the present invention is to provide a 'band separation preventing member' at the end of the outer peripheral surface of the main body, so that when the tube is expanded by air injection, leakage of injected air is more easily achieved. To provide a non-drillable sewer repair machine that is suitable for sealing completely and completely.

Still another object of the present invention is to provide a non-extruded sewer pipe maintainer suitable for preventing a problem of tearing a tube by a band clip by configuring a shape of a side surface of the band clip in a curved shape. There is.

The non-excavation sewage pipe repair device of the present invention for achieving the above object is provided in close contact with the outer peripheral surface of the cylindrical body, the cylindrical body is provided with an injection port for injecting air, and expands by the air introduced through the injection hole A tube, a band installed at one end and the other end of the tube, respectively, to prevent separation of the tube, and installed at both ends of an outer circumferential surface of the main body, and including a band leaving prevention member to prevent separation of the band. Characterized in that the configuration.

The non-excavation sewer pipe repair device of the present invention is characterized in that the 'band separation prevention member' is constituted by a flange.

The non-excavation sewer pipe repair device of the present invention is characterized in that the flange is provided by welding to the main body.

The non-excavation sewer pipe repair device of the present invention has a hollow portion in which left and right sides are curved and inserted at one end and the other end of the band, and fixes one end and the other end of the band to fix the band to the tube. Band clip 'is characterized in that it is further included.

The non-excavation sewer pipe maintenance device of the present invention is characterized in that it further comprises a pressing piece for pressing and fixing the end of the band fixed by the band clip.

The non-excavation sewage pipe repair device according to the present invention for achieving the above object is provided with a cylindrical body having an injection hole so that air is injected therein, and provided on an outer circumferential surface of the main body, and into the air introduced through the injection hole. In the non-excavation sewage pipe repair device comprising a tube that is expanded by, and a band installed at one end and the other end of the tube to prevent the separation of the tube, the left and right sides are curved, one of the band It is characterized by including a 'band clip' for fastening one end and the other end of the band having a hollow portion into which the end and the other end are inserted, and a pressing piece for pressing and fixing the end of the band fastened by the band clip. It is done.

The following will be described in detail with reference to the accompanying drawings, preferred embodiments of the non-excavation sewer pipe repair device of the present invention.

3 is a perspective view and an enlarged view of the main portion of the non-excavation sewer pipe maintenance machine according to an embodiment of the present invention.

As shown in Figure 3, the non-excavation sewer pipe maintenance device 30 according to an embodiment of the present invention, the main body 300, the tube 320, the band 330, the flange 310 and the band clip 340 ) And a pressing piece 342.

The main body 300 is provided with an 'air inlet' (302 shown in FIGS. 6A and 6B) through which air is injected through an 'air hose' (H shown in FIGS. 6A and 6B). And four moving wheels 304 rotating to be movable in the sewer pipe (SP shown in FIGS. 6A and 6B).

The tube 320 is in close contact with the outer circumferential surface of the main body 300, the repair liquid (RL shown in Figure 6a and 6b) is applied to the outer circumferential surface, the air injected through the 'air inlet' (302) Inflate.

The band 330 prevents the expanded tube 320 from being separated by the air injected through the air inlet 302, and prevents leakage of the air injected between the tube 320 and the main body 300. prevent.

The flange 310 is installed at both ends of the outer circumferential surface of the main body 300 to prevent the band 330 from being separated when the tube 320 is expanded. In addition, the flange 310 is provided at the end of the outer peripheral surface of the main body 300, when the tube 320 is expanded by the injection of air, more easily and completely seal the leakage of the injected air. .

The flange 310 is preferably installed by welding (welding) to the body 300.

The band clip 340 fixes the band 330 to the tube 320.

FIG. 4A shows a perspective view of the band clip in FIG. 3, FIG. 4B shows a perspective view of the pressing piece in FIG. 3, and FIG. 5 shows a partial longitudinal section of part A of FIG. 3. The figure is shown.

As shown in Figures 4 and 5, the band clip 340 has a hollow portion and the left and right sides are curved. The band 330 is fixed to the tube 320 by cross inserting both ends of the band 330 to the hollow portion of the band clip 340.

As shown in Figure 4 and 5, the non-excavation sewer pipe maintenance device 30 according to an embodiment of the present invention is further comprises a pressing piece 342.

When the band 330 is fixed to the band clip 340, the pressing piece 342 is fixed by pressing the end of the band 330.

The following describes the operation of the non-drilling sewer pipe repair device of the present invention having the configuration as described above.

6a and 6b is a view showing the operation of the non-excavation sewer pipe maintenance machine according to an embodiment of the present invention. FIG. 6A is a state diagram before air is injected, and FIG. 6B is an operation state diagram after air is injected.

First, a process of fixing the band 330 to the tube 320 by using the band clip 340 and the pressing piece 342 according to an embodiment of the present invention will be described with reference to FIG. 5.

One end (ie, one end) of the band 330 is inserted into the hollow of the band clip 340 and then bent by 180 degrees. Thereafter, the other end (ie, the other end) of the band 330 is inserted into the hollow portion of the band clip 340 in the direction opposite to the direction in which one end of the band 330 is inserted and then bent 180 degrees. The band 330 tightly fixes the tube 320, thereby fixing the tube 320 to the main body 300.

As described above, while the band 330 is fixed to the tube 320 by the band clip 340, the other end of the band 330 extending upward to the pressing piece 342 is fixed by pressing the finishing If so, the state is as shown in FIG.

In the state as shown in FIG. 6A, air is injected into the air inlet 302 through the air hose H. The air injected through the air inlet 302 is filled between the outer circumferential surface of the body 300 and the tube 320.

As described above, the air filled between the outer circumferential surface of the main body 300 and the tube 320 expands the tube 320 so that the repair liquid RL contacts the sewer pipe SP to be lining work.

As described above, when the tube 320 is inflated, the expansion force of the tube 320 acts on the band 330, but the reaction that cancels the contracting force acting on the band 330 by the flange 310 is the band 330 Since the band 330 is not separated from the tube 320 because it acts on, there is a technical gist of the present invention.

On the other hand, when the expansion force of the tube 320 acts on the band 330, the band has a very small micro displacement in the direction of the flange 310 (arrow direction shown in Figure 6b), the micro displacement of the band 330 The lateral pressure is applied to the rubber tube 320 between the band 330 and the flange 310, so that the rubber tube 320 between the band 330 and the flange 310 is shown in FIG. As shown in (b), it rises a little swelling upwards.

As described above, when the rubber tube 320 between the band 330 and the flange 310 is contracted by the lateral pressure and rises slightly upward, the contraction between the band 330 and the flange 310 is increased. Since the rubber tube 320 serves as a sealing material to block the air leakage, it is possible to further block the leakage of the injected air, and there is another technical gist of the present invention.

On the other hand, Figure 7 is a cross-sectional view of a non-drilling sewer pipe maintenance machine according to another embodiment of the present invention. As shown in FIG. 7, the flanges 310a, 310b, 310c of the non-excavation sewer pipe maintainer according to another embodiment of the present invention further strengthen the sealing of air in the tube 320, and the band 330. Implemented in a shape that can more effectively prevent the departure of the.

In addition, since the side surface of the band clip 340 according to the present invention is configured to be curved in a round shape, the tube 320 made of rubber material around the band clip 340 is torn even when the tube 320 is expanded. The phenomenon does not occur, here is another technical gist of the present invention.

The embodiment of the present invention is just one embodiment of the technical idea of the present invention, and in the person skilled in the art, other modified embodiments are possible within the technical idea of the present invention.

The present invention having the configuration and operation process as described above has the following effects.

First, there is an effect that the band 330 can be prevented from being separated when the tube 320 is expanded by the configuration of installing the 'flange' 310 in the main body 300.

Second, by installing the 'flange' 310 at the end of the outer peripheral surface of the main body 300, when the tube is expanded by the injection of air, there is an effect that can more easily and completely seal the leakage of the injected air .

Third, by implementing the shape of the side of the band clip 340 in a curved shape, there is an effect that can prevent the tearing of the tube in the vicinity of the band clip.

Claims (6)

A cylindrical body having an injection hole through which air is injected; A tube provided in close contact with an outer circumferential surface of the main body and expanding by air introduced through the injection hole; A band installed at one end and the other end of the tube, respectively, to prevent separation of the tube; And, It is provided at both ends of the outer circumferential surface of the main body, the non-excavation sewer pipe maintenance device characterized in that it comprises a 'band escape prevention member' to prevent the separation of the band. The method of claim 1, wherein the band separation prevention member, A non-excavation sewer pipe maintainer, characterized in that consisting of a flange. The method according to claim 2, The flange, Non-excavation sewer pipe repairer, characterized in that installed in the main body by welding (welding). The method according to any one of claims 1 to 3, The left and right sides are curved and provided with a hollow portion into which one end and the other end of the band are inserted, and the band clip is further configured to fix the band to the tube by fixing one end and the other end of the band. Non-excavation sewer pipe maintenance machine characterized by. The method according to claim 4, The non-excavation sewer pipe maintenance device, characterized in that further comprises a pressing piece for fixing by pressing the end of the band fixed by the band clip. A cylindrical body provided with an injection hole for injecting air therein, a tube provided on an outer circumferential surface of the main body and expanded by air introduced through the injection hole, and one end of the tube to prevent separation of the tube; In the non-excavation sewage pipe repair machine comprising a 'band' installed on the other end, 'Band clip' having left and right sides curved and having a hollow portion into which one end and the other end of the band are inserted to fasten one end and the other end of the band; And, Non-excavation sewer pipe maintenance device comprising a pressing piece for fixing by pressing the end of the band fastened by the band clip.

Images