KR100858139B1 - Corrosion prevention ring insertion apparatus of iron pipe - Google Patents

Abstract

An apparatus for inserting an anti-corrosion ring into an iron pipe is provided to simultaneously perform hole boring work and ring insertion work by using one equipment. An apparatus for inserting an anti-corrosion ring(200) into an iron pipe comprises a body(100), a fixing member(110), a boring member(120), an elastic member and an auxiliary boring member(130). The anti-corrosion ring is fitted around an outer peripheral surface of the body. The fixing member prevents the anti-corrosion ring from being separated from the body. The boring member moves up and down along the fixing member and a tip(121) is provided at a lower portion of the boring member. The elastic member is interposed between the fixing member and the boring member.

Description

Corrosion prevention ring insertion apparatus of cast iron pipes

1A to 1D are operation diagrams sequentially showing a conventional corrosion preventing ring insertion method.

Figure 2 is an exploded cross-sectional view showing the configuration of the anti-corrosion ring inserting device of the cast iron pipe according to the present invention.

3a to 3f are views showing the operating state of the anti-corrosion ring inserting apparatus of the cast iron pipe according to the present invention in sequence.

4a and 4b are a perspective view and a bottom view showing a corrosion protection ring according to the present invention.

◎ Explanation of symbols for main part of drawing

1: cast iron pipe 3: perforated

100: body 110: fixing member

112: space 114: guide groove

120: punched member 121: tip

122: guide protrusion 130: auxiliary punching member

131: tip 140: elastic member

200: anti-corrosion ring 202: locking end

204: bending portion 206: locking piece

H: hinge

The present invention relates to an anti-corrosion ring inserting device of a cast iron pipe, and more particularly, to the corrosion of a cast-iron pipe to easily insert and combine the anti-corrosion ring in one operation when inserting the anti-corrosion ring in the perforated portion of the cast iron pipe. An anti-ring insert device.

In general, when tap water is supplied to a home or a building, a cast iron pipe through which tap water flows is buried underground, and branch pipes are connected to a cast iron pipe buried underground to supply tap water to each home or building. That is, in order to install the branch pipe connected to the cast iron pipe, a perforation is first made using a perforator, and then the branch pipe is connected to the perforated water supply to each home or building.

At this time, the processing surface of the perforated cast iron pipe is corroded by the tap water after a certain period of time, which causes a problem that the inner diameter of the perforation is reduced, thereby reducing the amount of drinking water flowing into each home or building, or rust flows together do. Therefore, in order to improve this, the perforated cast iron pipe is installed with a corrosion preventing ring of a material that is not corroded as shown in FIG.

In the prior art, a method of inserting and inserting a corrosion preventing ring is first drilled in a cast iron pipe using a punching machine, and then inserts a corrosion preventing ring using an inserting device. 1A to 1D, a method of inserting and inserting a corrosion preventing ring will be described in detail. First, as shown in FIG. 1A, the corrosion preventing ring 20 is coupled to the insertion device 10 and installed. Here, the anti-corrosion ring 20 is integrally formed with a locking end 22 extending in the outward direction, the lower end is formed with a bent portion 24 is bent inward, the end of the bent portion 24 The locking piece 26 is bent to the outside again has a structure formed integrally. And the inserting device 10 is composed of a body 12 and a fixing member 14 is selectively fastened to the lower surface of the body 12 by a screw method, the lower surface and the fixing member 14 of the body 12 Between the inclined surface is formed between the bent portion 22 and the engaging piece 26 of the corrosion prevention ring 20 is configured to be coupled. Next, when the anti-corrosion ring 20 is installed in the insertion device in this way, as shown in FIG. 1B, the anti-corrosion ring 20 is inserted by inserting the insertion device 10 into the perforation 3 of the cast iron pipe 1. ) So that the locking end 22 is caught by the upper edge of the perforation 3. When the insertion device 10 is further inserted in this state, as shown in FIG. 1C, the lower end of the body 12 of the insertion device 10 pushes the bent part 24 of the corrosion preventing ring 20 and the bent part 24. ) Spread out. Then, as the bent portion 24 is extended, the engaging piece 26 is caught by the lower edge of the perforation 3, and the anti-corrosion ring 20 is coupled with the perforation 3 as shown in FIG. 1D.

However, the conventional method of inserting the anti-corrosion ring in the drilling of the cast iron pipe as described above has a disadvantage in that the work takes a lot of time and the workability is deteriorated because the perforation work and the anti-corrosion ring insertion work are performed. In other words, when the drilling work and the anti-corrosion ring insertion work are performed at once, it saves time and improves the workability. Using the conventional inserting device, the perforation work and the anti-corrosion ring insert work at once. There was a drawback that could not be implemented.

The present invention has been made in order to solve the problems as described above, the object is to prevent the corrosion of the cast iron pipe improved to be able to perform the drilling operation and the insertion of the anti-corrosion ring at a time when installing the anti-corrosion ring in the cast iron pipe To provide a ring insertion device.

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Corrosion prevention ring inserting device of the cast iron pipe according to the present invention for achieving the above object is rotatably installed and the body is coupled to the corrosion prevention ring fitted to the outer peripheral surface of the lower portion; A fixing member selectively coupled to the lower surface of the body to hold the anti-corrosion ring from the body; It is installed on the lower surface of the fixing member so as to be movable in the vertical direction, the lower surface of the perforated member having a tip so as to drill the cast iron pipe during rotation; An elastic member interposed between the fixing member and the punching member to elastically press the punching member; And is slidably assembled to the side of the perforated member is opened when the perforated member is raised to the outside while sliding, the lower surface is characterized in that it comprises a secondary perforated member having a tip so as to perforate the cast iron pipe during rotation. And it is characterized in that the width of the auxiliary perforating member is designed to be at least equal to the thickness of the anti-corrosion ring.

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The object of the present invention described above will become more apparent from the preferred embodiment of the present invention described below with reference to the accompanying drawings.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 2 is an exploded cross-sectional view showing the configuration of the anti-corrosion ring inserting device of the cast iron pipe according to the present invention, Figures 3a to 3f are views showing the operating state of the anti-corrosion ring inserting device of the cast iron pipe according to the present invention in sequence. 4A and 4B are a perspective view and a bottom view showing a corrosion protection ring according to the present invention.

Referring to Figure 2, the anti-corrosion ring inserting device of the cast iron pipe according to the present invention includes a body 100 and the fixing member 110 is configured to be installed coupled to the anti-corrosion ring 200 on the outer surface. Body 100 is rotatably installed by a rotating means not shown and the inclined surface is formed to be inclined inward so that the bent portion 204 of the anti-corrosion ring 200 to be described later is received at the bottom. And the fixing member 110 is assembled to be selectively coupled to the lower surface of the body 100 by a screw method, the inclined surface inclined inward so that the upper end of the locking piece 206 of the corrosion preventing ring 200 to be described later is accommodated Is formed. That is, by the cooperation between the inclined surface of the body 100 and the inclined surface of the fixing member 110 is installed so that the anti-corrosion ring 200 is not caught in the body 100.

The lower surface of the fixing member 110 is coupled to the punching member 120, the punching member 120 is formed in the lower portion so as to penetrate the cast iron pipe (1) and the tip 121 is formed on the surface in one piece. . And the punching member 120 is pressed while touching the cast iron pipe (1) when drilled through the cast iron pipe (1), and is installed to be movable in the vertical direction so as to descend after finishing the drilling work. That is, the bottom 112 of the fixing member 110 is formed with a space 112 for accommodating the upper end of the punching member 120 is moved up and down with the upper end of the punching member 120 inserted into the space 112, the space The guide groove 114 is formed on the side surface 112, and the guide protrusion 122 corresponding to the guide groove 114 is formed on the upper side of the punching member 120 so that the guide protrusion 122 is the guide groove 114. The perforated member 120 is configured to move up and down while being raised or lowered along. In addition, a spring, which is an elastic member 140, is interposed between the fixing member 110 and the punching member 120 in the space 112 so as to elastically press the punching member 120 downward. Therefore, when the perforated member 120 touches the cast iron pipe 1 to drill the cast iron pipe 1, the elastic member 140 is compressed and the perforated member 120 is slightly raised, and after the drilling operation is completed, the elastic member 140 is completed. By the restoring force of the perforated member 120 is to be lowered to its original state. Of course, the drilling member 120 is configured to rotate together when the body 100 of the insertion device is rotated, so that the perforation (3) is formed by drilling the cast iron pipe (1) while rotating.

The side of the punching member 120 is formed to have an inclined surface narrowing toward the upper direction, the side of the punching member 120 is installed to be slidable, the upper end of the auxiliary punching member 130 The hinge (H) is coupled to the fixing member 110 is configured to slide along the side of the punching member 120 while rotating around the hinge point. That is, the auxiliary boring member 130 is slightly expanded to the outside as shown in Figure 2b while sliding along the side of the punching member 120 when the punching member 120 is raised, the punching member 120 is When descending, the auxiliary punching member 130, which was opened as shown in FIG. 2A, is restored to its original state. In addition, the tip 131 is integrally formed on the lower surface of the auxiliary punching member 130 so that the cast iron pipe 1 can be drilled. Therefore, when the auxiliary punching member 130 is opened, the punching member 120 is primarily cast iron pipe ( 1) After the drilled portion of the secondary drilling member 130 is to be drilled wider secondary secondary wide enough to form a perforation (3) of sufficient size. Here, it is preferable that the width of the auxiliary puncture member 130 is designed to be equal to or slightly wider than the thickness of the corrosion preventing ring 200. The reason is that after the auxiliary drilling member 130 drills the cast iron pipe (1), the anti-corrosion ring (200) is inserted into the drilling (3) of the cast iron pipe (1), and then the auxiliary drilling member (130) is in the original state when the insertion device is removed. The narrowing is to prevent it from being caught by the anti-corrosion ring 200.

On the other hand, referring to Figure 4a and Figure 4b, the corrosion preventing ring 200 according to the present invention is formed in a cylindrical shape, the upper end of the engaging end 202 is formed integrally, the lower end of the body inside The bent portion 204 to be bent and the engaging piece 206 bent outward from the lower end of the bent portion 204 is formed integrally. The bent portion 204 and the engaging piece 206 are formed in a flower shape so as to be well opened. Here, the flower shape is preferably formed to have 8 or 12 angles, but may be configured to have other angles such as 6 or 10 angles.

Referring to the operation relationship of the anti-corrosion ring inserting device of the cast iron pipe according to the present invention configured as described above, the body 100 in a state in which the anti-corrosion ring 200 is coupled to the lower end of the body 100 as shown in Figure 3a The fixing member 110 is coupled to the lower surface of the corrosion preventing ring 200 so as not to be separated. Then, after the perforated member 120 is positioned at the perforated 3 position of the cast iron pipe 1, the perforated member 120 is pressed. Then, as shown in FIG. 3B, the punching member 120 is raised while the elastic member 140 is compressed, and the auxiliary punching member 130 is pushed out by pushing the auxiliary punching member 130 while the punching member 120 is raised. Direction. When rotating while pressing the insertion device in this state, as shown in Figure 3c, the punching member 120 is primarily drilled through the cast iron pipe (1), and if it continues to descend the secondary punching member 130 is a secondary cast iron pipe ( Drill the wider primary perforated part of 1) to form the desired perforations (3). Then, when the drilling operation is completed, the insertion device is continuously lowered as shown in FIG. 3d so that the locking end 202 of the corrosion prevention ring 200 is caught by the upper edge of the drilling 3 of the cast iron pipe 1. When the insertion device is forcibly pressed further in this state, as shown in FIG. 3E, the body 100 of the insertion device pushes the bent portion 204 of the corrosion preventing ring 200 so that the bent portion 204 is unfolded. Then, as the bent portion 204 is extended, the locking piece 206 is caught by the lower edge of the perforation 3, and the corrosion prevention ring 200 is mounted to the perforation 3. After this operation is completed, the insertion apparatus may be finally removed as shown in FIG. 3F. At this time, since the punching member 120 is lowered to its original state by the restoring force of the elastic member 140, the auxiliary punching member 130 also maintains the narrowed state to its original state, and thus the auxiliary punching member 130 has a corrosion preventing ring. It does not get to 200 and falls well.

As described above, the present invention, when installing the anti-corrosion ring in the perforation of the cast iron pipe, the drilling operation and the anti-corrosion ring inserting operation can be performed at a time as a single equipment, rather than by each equipment as conventional work It has the effect of improving the performance and work efficiency. In addition, the anti-corrosion ring according to the present invention because the bent portion and the engaging piece is formed in a flower shape, and spreads well, the effect of the operation is made easier when the extension of the body of the insertion device to extend the bent part to be caught on the lower end of the perforation There is.

While the invention has been shown and described in connection with specific embodiments as described above, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

Claims (4)

Body rotatably installed and the corrosion prevention ring is fitted to the outer peripheral surface of the lower portion; A fixing member selectively coupled to the bottom surface of the body to hold the anti-corrosion ring so as not to fall out of the body; A drilling member installed on the lower surface of the fixing member so as to be movable upward and downward, and having a tip provided on the lower surface so as to penetrate the cast iron pipe during rotation; An elastic member interposed between the fixing member and the punching member to elastically press the punching member; And The cast iron pipe is slidably assembled on the side of the perforated member so that when the perforated member rises, it opens outwards, and the lower side includes an auxiliary perforated member having a tip so as to perforate the cast iron pipe during rotation. Corrosion resistant ring insert. The method of claim 1, The anti-corrosion ring inserting device of the cast iron pipe, characterized in that the width of the auxiliary perforating member is designed to be at least equal to the thickness of the anti-corrosion ring. The method according to claim 1 or 2, The lower surface of the fixing member is formed with a space for accommodating the upper end of the perforated member, the perforated member is moved up and down into the space, the guide groove is formed on the side of the space, the guide projection corresponding to the guide groove is formed on the side of the perforated member Corrosion prevention ring inserting device of the cast iron pipe, characterized in that the guide projection is configured to move up and down while the guide projection is moved along the guide groove. delete

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