KR200227722Y1 - One touch plug and flange for piercing pipe - Google Patents

Abstract

The present invention is a pressure pipe used for the line stop operation that blocks the flow of gas, water, sewage, chemicals, etc. by the branch pipe work branching from the existing pipe, the valve replacement in the pipe, and the repair of the repair pipe for the supply of new users' fluid. Perforated Flange and Pressure Piping This is a one-touch plug that can safely and conveniently block gas leakage after perforation, and connects the existing pipe (6) through which the fluid flows and the branch pipe (7) branched to the place requiring the fluid. In the slide tube branch device, an opening is formed in the center thereof, and a wing seat groove is formed in the opening to move the one-touch plug (19) blade to be moved. A pressure pipe boring flange 14 having a bolt hole 25 corresponding to the outer diameter and including a female thread formed thereon; The pressure pipe is inserted into the opening of the drilling flange 14, protrudes on the upper outer peripheral surface to form a one-touch plug blade 34, a hole is formed in the center of the upper surface of the female thread is formed, the O-ring on the lower outer peripheral surface ( A one-touch plug 19 having a plurality of 26 formed therein; In order to cover the upper portion of the flange 14 and the one-touch plug 19 is characterized in that it consists of a blocking plate 18 joined by outer diameter circumferential welding.

Description

One touch plug and flange for piercing pipe}

The present invention is a pressure pipe used for the line stop operation that blocks the flow of gas, water, sewage, chemicals, etc. by the branch pipe work branching from the existing pipe, the valve replacement in the pipe, and the repair of the repair pipe for the supply of new users' fluid. Perforated flange and pressure pipe It relates to a one-touch plug that can safely and conveniently block the outflow of gas after drilling.

When the pipe line stop work is performed by the bow pipe branch work, pipe repair, valve replacement, etc., the shapes of the conventional pipe pipe flange (2) and the plug (5) are the same as those of Figs. The line stop flange 28 and plug 27 are as shown in FIG. 5.

The first branching and plugging operation method using the flange 2 and the plug 5 for the bow branch in the conventional bow branch operation is performed as follows.

As shown in FIG. 1, the flange 2 is welded to the upper part of the branched T-type fitting 1, and is fixed by wrapping and welding the existing pipe 6 with the lower T-type fitting 8. Then, the branch pipe 7 is connected to the outlet pipe of the T-shaped fitting 1 by welding, and the slide valve is shown in FIG. 3 on the flange 2 at the upper portion of the T-shaped fitting 1. Coupling (12), and reinstall the perforator 10 on the top of the slide valve (12).

The slide valve 12 is opened to lower the drilling saw blade 9 to contact the existing pipe 6 and then rotate the saw blade 9 to drill.

Then, the cutting part of the saw blade 9 and the existing pipe 6 for the punching machine is raised into the punching adapter 11. The slide valve 12 is then closed and the perforator 10 is separated from the slide valve 12.

The saw blade 9 is removed from the drive shaft 33 of the perforator 10 and the plug adapter 13 is installed on the drive shaft 33 as shown in FIG. 4 and the threaded plug 5 is attached to the plug adapter 13. Insert the perforator 10 back onto the slide valve 12.

With the slide valve 12 in the open state, the drive shaft 33 of the perforator 10 is lowered and the drive shaft 33 is rotated to screw the plug 5 into the plug seat groove 35.

The plug adapter 13 is pulled out from the plug 5 by raising the drive shaft 33 of the puncher 10 and the puncher 10 is removed from the slide valve 12.

Remove the slide valve 12 from the flange 2 and couple the cover plate 3 to the flange 2 with bolts 4.

The conventional method of joining the flange 2 and the plug 5 for a bow tube branch according to the above method has the following problems.

Since the connection method of the plug 5 and the plug adapter 13 is a forced insertion type, the plug 5 may be excessively weighted or an accidental detachment of the plug 5 from the plug adapter 13 may occur. (5) is screwed into the plug seat groove (35) of the flange (2), if the central axis between the flange (2) and the punching machine (10) does not match the plug (5) and the flange (2) If the thread of the plug seat groove 35 is shifted, there is a problem that the plug adapter 13 is separated from the plug 5 without closing the opening of the flange 2.

In addition, after the opening of the flange 2 is closed with the plug 5, the cover plate 3 is joined to the flange 2 with the bolt 4 to complete the connection work. Therefore, if the bolt 4 is buried in the ground for a long time, Natural corrosion may cause loosening of the cover plate 3, resulting in gas leakage.

Secondly, the line stop work used for pipe repair and valve replacement is as follows.

As shown in FIG. 5, the completion flange 28 is welded to the upper portion of the line stop fitting 30, and the line stop fitting 30 is welded and fixed according to the radius of curvature of the existing pipe 6.

The slide valve 12 is coupled to the completion flange 28 at the top of the line stop fitting 30, as shown in FIG. 3, and the perforator 10 is again installed on the top of the slide valve.

With the slide valve 12 in an open state, the drilling saw blade 9 is lowered to contact the existing pipe 6, and the saw blade 9 is rotated to drill.

The cutting part of the drilling saw blade 9 and the existing pipe 6 is raised into the drilling adapter 11. The slide valve 12 is closed, and the perforator 10 is separated from the slide valve 12.

The saw blade 9 is removed from the drive shaft 33 of the perforator 10, and as shown in FIG. 6, the plug adapter 31 is installed on the drive shaft 33, and the completion plug (3) is attached to the plug adapter 31. 27) and re-install perforator adapter 11 over slide valve 12.

With the slide valve 12 in the open state, the perforator drive shaft 33 is lowered and fixed by rotating the completion plug fixing pin 29 mounted on the wing of the line stop flange 28.

The plug adapter 31 is pulled out of the completion plug 27 by lifting the perforator drive shaft 33 up, and the perforator is removed from the slide valve 12.

The slide valve 12 is removed from the line stop flange 28 and the cover plate 3 is bolted to the line stop flange 28 as shown in FIG.

The conventional method of joining the line stop flange 28 and the completion plug 27 by the above method has the following problems.

As shown in FIG. 6, the completion plug 27 is a plug fixing pin 29 in which the fixing plug 27 has a flange wing. Therefore, since the drive shaft 33 must be lowered down to the fixing pin groove of the completion plug 27, the transfer distance of the completion plug 27 is long, and the pressure of the upper and lower parts of the completion plug 27 is in the process. A difference occurs. In order to overcome the pressure difference, the equalization device 32 should be installed in the completion plug 27. In this case, the production of the plug is complicated and the manufacturing cost is increased, the construction cost increases. In addition, since the equalizer 32 must be precise, the operation of the plug is difficult.

The completion plug fixing pin 29 mounted on the wing of the line stopping flange 28 has a long time after the completion of the line stopping. Is likely to be.

After the opening of the line stopping flange 28 is closed with the completion plug 27, the cover plate 3 is coupled to the line stopping flange 28 with a bolt 4 to complete the connection work. In this case, if it is buried in the ground for a long time, the bolt 4 is naturally corroded, and the tightening of the cover plate 3 is loosened, which may cause gas leakage.

The present invention was devised to solve the above-mentioned problems, and the bow pipe branching work and the repair of pipes for connecting the branch pipes that require the supply of the distribution pipe and the existing pipes through which fluids (gas, water, sewage, chemicals, etc.) flow. In order to provide a safe and convenient operation in the stopping operation to temporarily block the fluid flow for the purpose, and to provide a pressure pipe perforated flange and plug that can be reliably finished without leakage of gas after the operation.

The present invention is a system for connecting a branch pipe branched to a place requiring a fluid and the existing pipe flowing the fluid flow in order to achieve the above object, the opening is formed in the center, the one-touch opening A pressure pipe boring flange having a wing seat groove into which a plug blade can be inserted, the outer diameter of which is coincided with the outer diameter of the slide pipe branch device and the line stop fitting, and a bolt hole including a female thread formed thereon; Is inserted into the opening of the pressure pipe perforated flange, protrudes on the upper outer circumference to form a one-touch plug wing, a hole is formed in the center of the upper surface of the female thread is formed, the circle is formed with a plurality of O-rings on the outer peripheral surface of the lower body Pop plugs; In order to cover the upper portion of the flange and the one-touch plug 19 provides a pressure pipe drilling flange and one-touch plug, characterized in that consisting of a blocking plate for joining the outer diameter circumference by welding.

1 is a perspective view illustrating a state in which a conventional pipe and a branch pipe are connected in the related art.

Figure 2 is a cross-sectional view showing a state connecting the existing pipe and the branch pipe in the prior art.

Figure 3 is a sectional view of the main portion of the conventional art for drilling the existing pipe.

4 is a perspective view of a plug adapter and a plug of the prior art;

Figure 5 is an exploded perspective view of the line stop fitting and the completion plug in the prior art.

6 is a cross-sectional view of a prior art linestop fitting and completion plugging recess.

Figure 7 is a cross-sectional view showing a coupling state of the pressure pipe boring flange and one-touch plug coupled to the bow pipe branch device of the present invention.

Figure 8 is a perspective view showing a state in which the blocking plate coupled to the pressure pipe drilling flange coupled to the bow pipe branch device of the present invention.

Figure 9 is an exploded perspective view of the pressure pipe drilling flange and one-touch plug of the present invention.

Figure 10 is a perspective view of the one-touch plug adapter and one-touch plug of the present invention.

Figure 11 is a cross-sectional view of the main portion of the pressure pipe drilling flange and the punching machine of the present invention is coupled.

Figure 12 is a cross-sectional view showing a coupling state of the pressure pipe boring flange and the one-touch plug coupled to the line stop fitting of the present invention. Figure 13 is a state in which the anti-rotation pin and the anti-rotation pin is installed in the one-touch plug of the present invention. Illustrated perspective view.

<Brief description of symbols for main parts of the drawings>

1: T type fitting 2: Flange for branch pipe

3: cover plate 4: hexagonal bolt

5: Plug for bow tube branch 6: Existing pipe

7: branch pipe 8: reinforcement plate

9: saw blade 10: perforator

11: perforator adapter 12: slide valve

13: plug adapter 14: flange for drilling pressure pipe

15: T type upper fitting 16: T type lower fitting

17: cap-type fitting 18: blocking plate

19: one-touch plug 20: one-touch plug adapter

21: anti-rotation pin 22: anti-rotation pin

23: outlet pipe 24: plug wing groove

25: bolt hole 26: O-ring

27: completion plug 28: completion flange

29: completion plug fixing pin 30: line stop fitting

31: completion plug adapter 32: equalizer

33: drive shaft 34: one-touch plug blade

35: plug seat groove 36: stud bolt 37: wing fixing

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

The pressure pipe boring flange 14 and the one-touch plug 19 of the present invention, as shown in Figure 7 to Figure 13, the bow tube branching device T-type upper fitting 15 and the line stop fitting 30, the fitting Pressure pipe drilling flange 14 coupled to the welding by a welding method, a one-touch plug 19 for coupling and closing the opening of the flange 14 by a one-touch coupling method, the one-touch plug 19 plug plug groove ( 24, the anti-rotation pin 22, the anti-rotation pin 21 to prevent over-rotation or reverse rotation of the one-touch plug 19 in the process of coupling to the wing seat groove, the flange for drilling the pressure pipe ( 14) and the blocking plate 18 for joining the upper portion of the one-touch plug 19 by a welding method.

An opening is formed in the center of the pressure pipe flange 14 of the present invention, and the wing seat groove is formed in the opening to move the one-touch plug 19 wing, and the outer diameter of the pipe branch device and the line stop are formed. A bolt hole 25 is formed in the upper part which matches the outer diameter of the fitting and includes the female thread. The wing seat groove has three flange wing grooves 24 and three wing fixing portions 37 as shown in FIG. 13. The wing seat grooves formed along the inner wall of the opening of the flange 14 are one-touch. The blade of the plug 19 is inserted downward along the flange wing groove 24, the one-touch plug 19 is rotated to move to the lower portion of the wing fixing portion 37 along the wing seat groove to prevent the departure. Hereinafter, the process of coupling the one-touch plug to the opening of the flange in detail, the one-touch plug 19 connected to the drive shaft 33 of the punching machine 10 is inserted into the flange wing groove 24 of the one-touch plug 19 The wing moves until it reaches the wing fixing part 37. At this time, it is no longer able to move forward by the over-rotation prevention pin (21). After the operation, remove the slide valve 12 from the flange 14 and prevent the one-touch plug 19 from rotating backward by external pressure at the end where the one-touch plug 19 wing and the wing fixing portion 37 overlap. In order to fix the anti-rotation pin 22 is inserted into the pinhole (not shown) formed in the wing seat groove.

The one-touch plug 19 is inserted into the opening of the pressure pipe punching flange 14, a part of the upper surface protrudes toward the outer circumference to form a one-touch plug blade 34, the hole is formed in the center of the upper surface A female screw is formed. And a plurality of O-ring 26 is formed on the outer peripheral surface of the cylindrical body formed in the lower portion.

In order to cover the upper part of the said flange 14 and the one-touch plug 19, the blocking plate 18 is joined by welding the outer diameter perimeter.

In addition, the pipe joint fittings (15) and line stop fittings (30), pressure pipe punching flange (14) and one-touch plug (19) of the present invention is processed in the factory, the welding is made in the factory, so the connection work in the field This is simple.

Another characteristic of the present invention will be described a method for working with the bow pipe branching device of the pressure pipe boring flange 14 and the one-touch plug 19. (Line-stop operation is similar to that of bow tube branching device and description is omitted.)

As shown in FIG. 8, the T-type fitting is straightly cut and diagonally wrapped around the existing pipe 6 at the point where the T-type upper fitting 15 and the T-type lower fitting 16 of the bow tube branching device are to be branched up and down. Weld the cut part.

Weld the periphery of the hole of the T-type fitting in contact with the existing pipe (6) to fix the bow tube branch device to the existing pipe (6).

The branch pipe 7 is connected to the bow pipe branch outlet pipe 23 by a welding method.

As shown in FIG. 11, the slide valve 12 is coupled to the pressure pipe drilling flange 14 at the top of the bow pipe branching device.

The perforator 10 is installed in the slide valve 12.

As shown in FIG. 3, the slide valve 12 is opened to bring the saw blade 9 of the punching machine downward into contact with the existing pipe 6, and the saw blade 9 is rotated to drill the existing pipe 6. After that, the saw blade 9 of the perforator 10 and the cut portion of the existing pipe 6 are raised into the perforator adapter 11.

The perforator 10 is removed from the slide valve 12 with the slide valve 12 in the closed state.

The chip part cut from the saw blade 9 and the existing pipe 6 is removed from the drive shaft of the puncher 10, and instead is shown in FIG. 8 at the tip of the drive shaft 33 of the puncher 10. FIG. Install the threaded plug adapter 20, assemble the one-touch plug 19 to the plug adapter 20 by screwing, and reinstall the perforator 10 on the slide valve 12 as shown in FIG. do.

With the slide valve 12 in the open state, the drive shaft 33 of the puncher 10 is lowered so that the blade of the one-touch plug 19 descends to the wing seat groove 24 of the flange 14.

When the one-touch plug 19 is lowered to the wing seat groove, the drive shaft of the perforator 10 is rotated to completely insert the plug wing into the wing seat groove through the flange wing groove 24. At this time, the wing seat groove of the flange 14 is provided with an over-rotation prevention pin 21 for preventing the wing of the one-touch plug 19 to rotate over a certain angle.

When the blade of the plug 19 is in place, the drive shaft of the perforator 10 no longer rotates.

Once the one-touch plug 19 is perfectly coupled, the punch drive shaft is rotated counterclockwise to separate the plug adapter 20 from the one-touch plug 19.

The slide valve 12 is closed and the perforator 10 is removed from the slide valve 12.

Remove slide valve 12 from flange 14

As shown in FIG. 13, a reverse rotation preventing pin 22 is installed in the wing seat groove of the flange 14 to prevent reverse rotation of the one-touch plug 19.

The blocking plate 18 is coupled to the flange 14 in a welded manner to completely prevent gas leakage.

The present invention uses the one-way plug method in the wing seat groove of the pressure pipe perforated flange connected to the T-type upper fitting and the line stop fitting after the welding and drilling of the existing pipe using the pipe branch device and the line stop fitting. By simply joining to seal the opening of the pressure pipe perforated flange, it eliminates the anxiety of closing the plug seat groove by screw assembly, and finally, by welding the blocking plate on the plug and the upper part of the flange and the circumference of the flange, It can completely solve the anxiety about the gas leakage caused by the corrosion of the bolt. Therefore, branching can be made safer and simpler, and flanges and plugs can be manufactured at low cost. In addition, the pressure pipe boring flange and one-touch plug can be used for connection work and line stop work of piping for transporting not only city gas but also other water and sewage and chemicals.

Claims (3)

In the bow tube branching device which is a device which connects the existing pipe 6 through which a fluid flows, and the branch pipe 7 branched to the place which requires a fluid, an opening part is formed in the center and a one-touch plug wing 34 in the said opening part. The wing seat groove which can be inserted and moved is formed on the inner wall of the opening, and the wing seat groove is formed with a flange wing groove 24 and a wing fixing part 37, the outer diameter of which is the slide pipe branch device and line stop A pressure pipe boring flange 14 having a bolt hole 25 corresponding to the outer diameter of the fitting and including a female thread formed thereon; The pressure pipe is inserted into the opening of the drilling flange 14, protrudes on the upper outer peripheral surface to form a one-touch plug blade 34, a hole is formed in the center of the upper surface of the female thread is formed, the O-ring on the lower outer peripheral surface ( A one-touch plug 19 having a plurality of 26 formed therein; Pressure pipe drilling flange and one-touch plug, characterized in that made of a blocking plate (18) for joining the outer diameter circumferential welding to cover the upper portion of the flange (14) and one-touch plug (19). The pressure pipe drilling flange and one-touch plug according to claim 1, characterized in that a plug adapter (20) having a male screw formed therein to be fastened with a female screw formed at an upper center of the one-touch plug (19) is fastened. According to claim 1, wherein the anti-rotation pin (21) is penetrated downward through the end of the wing fixing portion 37 in the direction in which the one-touch plug (19) is inserted into the flange 14 and rotates. It is fixed to the lower surface to prevent the wing of the one-touch plug 19 to rotate over a certain angle, the one-touch plug 19 is inserted and rotated to settle the plug wing close to the other end of the blade fixing portion 37 Pressure pipe drilling flange and one-touch plug, characterized in that for fixing the reverse rotation prevention pin (22) in the groove (24).