KR100427209B1 - Flanged pipe and Rubber packing that is used in pipe connection - Google Patents

Abstract

The present invention relates to a rubber packing and a pipe connector assembly using the same for the connection between the flange pipe and the flange pipe reinforcing the flange structure, and more particularly to increase the width of the flange, the end of the increased flange width A flange pipe forming a groove and connecting the fusion portion and the fusion portion of the flange separated by the groove with a plurality of reinforcement to pull the fusion portion, thereby preventing the bending portion of the flange due to the bolting force and the tube for increasing watertightness It relates to a rubber packing for the connection and a tubular connector assembly using the same.

Pipe connector assembly using the rubber packing used to connect the flange pipe and the flange pipe reinforced the flange structure,

The flange of the flange tube is a tube having a cross-section of the opening of the "┗┛", the coupling portion is formed in the coupling hole to be coupled to the other flange, the fusion portion fused to the tubular body of the porous tube, the fusion portion A flange tube including a reinforcement part connecting the coupling part to the joint part, and a joint part extending and protruding in an axial direction of the tube on one side of the coupling part; It is installed at the junction where the different flange pipes are in contact with each other. In the shape of "7", one side of the horizontal bar of "ㅡ" is formed with a side protrusion protruding at right angles to the axis of the tube. Consists of a rubber packing formed in the tangential projection protruding in the axial direction.

The present invention can significantly increase the load by reducing the flange protruding from the pipe, reduce the cost of transportation and the failure rate of the flange, and improved binding force by the improved flange structure of the fluid even after installation It has become possible to provide useful products that lower the leak rate.

Description

Flanged pipe and rubber packing that is used in pipe connection}

The present invention relates to a rubber packing and a pipe connector assembly using the same for the connection between the flange pipe and the flange pipe reinforcing the flange structure, and more particularly to increase the width of the flange, the end of the increased flange width A flange pipe forming a groove and connecting the fusion portion and the fusion portion of the flange separated by the groove with a plurality of reinforcement to pull the fusion portion, thereby preventing the bending portion of the flange due to the bolting force and the tube for increasing watertightness It relates to a rubber packing for the connection and a tubular connector assembly using the same.

In general, the connection of the tubular body is made by a method of bolting the two flanges by coupling or integrally forming the flange to the end of the tubular body, in the case of large diameter tubular body is used only by the method of integrally formed flange.

As shown in FIG. 1, a large diameter tube in which a conventional flange is integrally formed, the flange 62 is integrally formed at the end of the tube 61, and a gap is formed by inserting a rubber packing 63 between the two tubes. It is prevented from forming, and the coupling is made by bolts.

However, since the conventional flange-integrated tube 60 is formed integrally with the flange 62 and the tube 61, it is cumbersome to manufacture, and the flanges protrude more than the tube so that the flanges protrude during storage and movement of the tube. There is a problem that the tube is bent or the flanges are easily broken due to interference between the tubes.

In addition, the packing portion is inserted into the connection portion of the flange tube to increase the water tightness of the tube, the packing is in the form of a flat plate has a cumbersome point such as to check the engagement of the bolt coupling hole of the flange tube during installation.

Accordingly, the present invention has been made to solve the above conventional problems,

SUMMARY OF THE INVENTION An object of the present invention is to provide a flange tube in which the flange and the tube body are integrally formed by heat fusion and the width of the flange is increased to prevent the flange from being bent by bolting.

In addition, another object of the present invention is to form a groove in the middle portion of the flange, and to form a coupling hole for fastening the bolt on the side of the groove, thereby reducing the outer diameter of the flange protruding from the tubular body during transportation and installation To provide a flange tube that can prevent the damage of the flange.

Another object of the present invention is to provide a flanged pipe which improves the adhesion between the two pipes by forming a groove at the end of the flange, which is a connecting portion of the two pipes, and combining rubber packings having protrusions corresponding thereto.

1 is a perspective view showing a connection structure of a conventional flange tube,

Figure 2 is a perspective view of a preferred embodiment of a flange tube reinforced with a flange structure according to the present invention,

Figure 3a, 3b is a block diagram according to a preferred embodiment of the present invention,

Figure 4 is a cross-sectional view showing the enlarged portion of the main portion in the coupling state of the rubber packing used for the connection of the flange pipe and the flange pipe reinforcing the flange structure according to the present invention,

5 is a cross-sectional view showing a rubber packing according to the present invention,

Figure 6 is a block diagram showing a coupling state of the tubular connector assembly according to the present invention,

7A and 7B are cross-sectional views illustrating main parts of an example in which a cover member is installed in a tubular connector assembly according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: flange tube 20: tube

30: flange 31: coupling part

32: welded portion 33: reinforcement

34: junction 40: rubber packing

41: horizontal bar 42: vertical bar

43: side protrusion 44: tangential protrusion

45: corner 50: bolt

70: cover member 71: through hole

100: pipe connector assembly 311: coupling hole

321: fusion piece 322: fusion surface

331: reinforcement 341: side groove

342: contact groove 60: conventional flange tube

61: pipe 62: flange

63: rubber packing

The flange tube which improved the flange structure of this invention for achieving the said subject,

A large diameter flange tube composed of a pipe body and a flange, the flange being a tube having a cross-section having an opening of an "┗┛" shape, the coupling part of which a coupling hole is formed and directly coupled to another flange; A fusion unit welded to the tube that is the porous tube; It is configured to include a reinforcing portion connecting the fusion portion and the coupling portion.

The flange tube is a large diameter tube having a diameter of 400 mm or more. The flange portion is a tube made of a synthetic resin porous tube manufactured by sequential lamination, and the flange portion manufactured by injection molding is separately manufactured and integrated by heat fusion.

Therefore, a fusion piece extending in the axial direction of the pipe in contact with the pipe on the outer circumferential surface of the fusion portion may be further formed in the fusion portion of the flange pipe to increase the fusion surface with the pipe body, which is a porous tube.

In addition, a coupling hole for bolting is formed in the coupling portion of the flange tube. When the spacing between the coupling holes is 10 cm or less, an unnecessary construction cost due to bolting is increased by exceeding the required clamping force, When the gap is 20cm or more, the fastening force for close contact between the two flange pipes is insufficient, so that water leakage or breakage occurs, and the spacing between the coupling holes is preferably 10 to 20 cm.

The flange has a plurality of reinforcing bars protruding from the surface of the reinforcing part for reinforcing the connection of the joining part and the fusion part to the reinforcing part of the flange to prevent the coupling part of the flange from being bent by the bolt fastening force.

The protruding reinforcement is formed at the same height as the outer surface of the center line of the coupling hole. Therefore, the reinforcing bar is formed to be spaced apart from the coupling hole in order not to interfere with the bolting of the coupling hole.

On the other hand, the rubber packing for connecting the pipe to increase the watertightness, the cross-section is in the form of a "7", the end of the horizontal bar is formed at the end of the horizontal bar at the end of the horizontal axis of the "-" character, the vertical bar of the | | The tangential projection is formed in the axial direction of.

Side and contact projections formed on the horizontal bar and the vertical bar is to increase the area in which the rubber packing and the tubular contact to improve the sealing property, as well as to form a plurality of projections as necessary, of course, the rubber packing is installed The joining surface of the two tubes should be formed with side grooves and contact grooves corresponding to the side and the contact projections.

In addition, the chamfering operation may be further performed on the “7” shaped rubber packing edge portion to further close the rubber packing to the flange, and the material of the packing may be a synthetic resin or a metallic material in addition to the rubber.

As described above, the tubular connector assembly using the rubber packing used for the connection between the flange pipe and the flange pipe reinforced with the flange structure,

The flange of the flange tube is a tube having a cross-section of the opening of the "┗┛", the coupling portion is formed in the coupling hole to be coupled to the other flange, the fusion portion fused to the tubular body of the porous tube, the fusion portion A flange tube including a reinforcement part connecting the coupling part to the joint part, and a joint part extending and protruding in an axial direction of the tube on one side of the coupling part;

It is installed at the junction where the different flange pipes are in contact with each other. In the shape of "7", one side of the horizontal bar of "ㅡ" is formed with a side protrusion protruding at right angles to the axis of the tube. Consists of a rubber packing formed in the tangential projection protruding in the axial direction.

The joint portion of the flange pipe is for facilitating the coupling of the rubber packing, the protruding outer peripheral surface is formed with side grooves corresponding to the side projections of the rubber packing, and the contact surface of the other flange pipe with the contact projections of the rubber packing Each of the contact grooves is formed.

In addition, the pipe connector assembly is also formed in the axial direction of the tube in contact with the tube in the outer peripheral surface of the fusion portion, the same as the above-described flange pipe is further formed, the spacing between the coupling holes formed in the coupling portion is 13 ~ 18 cm Form.

The reinforcing part of the flange has a plurality of reinforcing bars protruding from the surface of the reinforcing part so as to reinforce the connection of the joining part and the fusion part, and are formed to be spaced apart from the joining holes of the joining part. It is formed at the same height as the center line of the coupling hole formed in the portion.

Meanwhile, a cover member having a circular band between the coupling portions of the different flange tubes or the connection portions of the flange tubes to prevent oxidation (corrosion) of the rubber packing due to the oxide material introduced into the ground when the tube connector assembly is embedded. Can be installed more.

Hereinafter, with reference to the drawings will be described in detail a flange tube improved the flange structure of the present invention.

Figure 2 is a perspective view of a preferred embodiment of a flange tube reinforcing the flange structure according to the present invention, Figure 3a, 3b is a configuration diagram according to a preferred embodiment of the present invention, Figure 4 is reinforcing the flange structure according to the present invention Fig. 5 is a sectional view showing a part of the rubber packing according to the present invention in an enlarged state in a state in which the rubber packing used for the connection between the flange pipe and the flange pipe is connected, and Fig. 6 is a tubular connector according to the present invention. 7A and 7B are cross-sectional views illustrating main parts of an example in which a cover member is installed in a tubular connector assembly according to the present invention.

As shown in FIG. 2, the flange tube 10 having the improved flange structure according to the present invention includes a tubular body 20, which is a large diameter porous tube, and a flange 30 integrally formed at an end of the tubular body. Among the two elements, the flange 30 has a coupling part 31 having a coupling hole 311 formed therein so as to be coupled to another flange in the form of a tube having a cross-section of an “open” outer diameter, and a tubular body which is a porous tube ( 20 and a fusion portion 32 to be fused, and a reinforcement portion 33 connecting the fusion portion 32 and the coupling portion 31, the reinforcement portion 33 is a coupling portion 31 of the flange In order to prevent the bending by the bolt fastening force is formed a plurality of reinforcing rods 331 protruding upward on the surface of the reinforcing portion (33).

Referring to FIG. 3A, the reinforcing rod 331 is formed at a predetermined distance from the coupling hole 311 to prevent the fastening from being made due to the reinforcing rod 331 when the bolt is fastened to the coupling hole 311. That is, since the height of the protruding reinforcement 331 reaches the center axis of the coupling hole 311, when it is positioned on the same line as the coupling hole 311, the coupling is not made and is spaced at a predetermined angle.

In addition, when the method of forming the reinforcing rod 331 to increase the thickness of the reinforcing portion 33 itself in addition to the protruding shape is applied, the outer diameter of the reinforcing portion 33 is increased by d, so that at least r is the radius of the bolt female screw for bolting. As much as the coupling hole 311 should be formed in the upper portion. Therefore, the diameter of the coupling part 31 in which the coupling hole 311 is formed is larger by r, so that the flange 30 itself protrudes a lot from the outer diameter of the tube, thereby causing the same problem as the conventional flange tube. Therefore, since the diameter of the flange 30 can be reduced as much as the coupling hole 311 is formed close to the central axis of the tube body 20, the flange tube of the present invention has a diameter of the flange 30 by 2r than the conventional tube. The diameter is minimized.

And, as shown in Figure 3b, the coupling portion 31 is a bending phenomenon to try to bend in the direction that is fastened by the tightening force when the bolt is fastened, the reinforcement 331 pulls the coupling portion 31 in the opposite direction of the bending force This is generated by the repulsive force, the bending force is to some extent to prevent the coupling portion 31 to be broken.

On the other hand, Figure 4 is an enlarged cross-sectional view showing the main portion in the engaged state of the rubber packing used for the connection of the flange pipe and the flange pipe reinforcing the flange structure according to the present invention.

As shown in the figure, the fusion portion 32 is further formed with a fusion piece 321 extending in the axial direction in contact with the tubular body 20 on the outer circumferential surface thereof so that the fusion surface 32 is in contact with the tubular body 20. 322 was increased to improve adhesion, and one side end of the flange coupling portion 31 further formed a joint 34 extending in the axial direction of the tubular body 20 so that the rubber packing 40 was installed.

The joint part 34 and the rubber packing 40 mounted on the joint part have formed side grooves 341 and abutment grooves 342 on the side and end of the joint part 34 to improve the coupling force, respectively. In one side of the rubber packing 40 to form side projections 43 and the contact projections 44, respectively. The protrusions and grooves are for preventing the rubber packing 40 from being spaced apart, and a frictional force is generated in the protrusions or the grooves when the flanges are fastened to prevent the rubber packings 40 from being pushed off the shaft of the flange tube 10. In addition, since the grounding surface in which the rubber packing 40 and the flange pipe 10 are in contact with each other is increased, leakage of fluid, such as the fluid conveyed by the pipe body, can be further prevented.

In addition, as shown in FIG. 5, the rubber packing 40 according to the present invention has a corner 45 at which the horizontal bar 41 and the vertical bar 42 contact each other in order to improve the bonding force with the flange joint 34. A chamfer was made. That is, the side projections 43 formed on the horizontal bars 41 of the rubber packing 40 are lifted from the side grooves 341 of the joint part 34 by the coupling force formed in the axial direction of the tubular body 20 during the pipe connection. In order to prevent part of the edge 45 is pulling the side projections.

And, the contact projections 44 formed on the vertical bar 42 is formed to extend to the end of the vertical bar as shown, a plurality of contacting projections therein may be in the form of one or more additionally formed. . Forming the contact surface 44 and the side projections 43 at the ends of the vertical bar 42 and the horizontal bar 41 to improve the bonding force of the rubber packing 40 by allowing both projections to grip the joint of the flange pipe. It is for.

As described above, the tubular connector assembly 100 according to the present invention will be described with reference to FIG. 6, and a reinforcement flange 30 will be formed at both ends of the two flange pipes, respectively, and will be coupled by bolts 50.

The bolt 50 is bent in the shape of the "b" shape, the other end is a thread is formed, it is inserted into the coupling hole of the coupling hole 311 and the other flange of the flange coupling portion is fastened with a female screw.

The coupling hole 311 is located between the reinforcing bar 331 is a plurality of protruding along the outer circumference of the reinforcing portion 33, it can be easily inserted into the bolt. In addition, since the rubber packing 40 is coupled to the flange joint 34 in advance, the connection of the pipe is made without inserting the packing to prevent leakage.

And, as shown in Figure 7a and 7b and the pipe connector assembly 100 using the rubber packing used to connect the flange pipe and the flange pipe reinforcing the flange structure according to the present invention cover the connection portion of the flange pipe Further installation of the member 70 can prevent or delay the oxidation (corrosion) of the rubber packing 63 due to the oxide material when embedded.

For example, the tubular connector assembly 100 may have a "shape" shape or " A cover member having a cross section of the form "can be installed.

The cover member 70 having a cross section of the former type "∪" has a bottom portion formed in the axial direction of the flange tube, and both side walls of the lid member 70 correspond to the coupling hole 311 formed in the coupling portion 31 of the flange tube. The through hole 71 is formed. Therefore, after inserting the bottom portion of the cover member 70 between the coupling portion 31 of the two flange pipes, the bolt 50 is inserted into the coupling hole 311 of the flange pipe 30 and the through hole 71 of the cover member. It is installed by inserting and tightening sequentially.

Also, the latter " "Covering member 70 having a cross section of the form is formed in each side wall through hole 71 corresponding to the coupling hole 311 formed in the coupling portion 31, the cover member 70 protruding upwards Both sides of the gripping) are held in the coupling portion 31 of the two flange pipe, the inner side of the cover member 70 protruding downward is inserted between the coupling portion 31 of the two flange pipe, the coupling of the flange pipe 30 The through hole 71 of the ball 311 and the cover member 70 is installed by a method of fastening by the bolt (50).

Since the cover member 70 is an auxiliary member for preventing the rubber packing 63 from being directly exposed to an external oxide material, various methods for achieving the above object may be applied.

In addition, the above-mentioned example is only an example to demonstrate this invention. Therefore, it is obvious that the ordinary skilled in the art to which the present invention pertains uses the partial change with reference to the detailed description.

As described above, the flange tube improved the flange structure of the present invention,

It is suitable for large diameter pipes that require a large coupling force, and increases the width of the flange and forms a groove at the end of the increased flange to form a coupling hole for fastening the bolt on the side of the groove, thereby protruding from the tube. There is an advantage that the outer diameter of the flange can be reduced.

In addition, since the reinforcing rod is pulling the bolt coupling hole, a stronger coupling is possible, and the rubber packing is coupled to the tube itself to provide a flange tube that can shorten the construction time.

Therefore, the present invention can increase the loading amount by greatly reducing the flange protruding from the tube, reduce the cost of transportation and the failure rate of the flange, even after the installation is improved by the improved flange structure It is possible to provide a useful product that lowers the leak rate of the fluid.

Claims (16)

delete A coupling part 31 formed of a tubular body and a flange, wherein the flange is a tubular shape having an “┗┛” shaped cross section whose outer side is opened, and a coupling hole 311 is formed to be coupled to another flange; A fusion unit 32 that is fused to a tube that is a porous tube; In the flange tube comprising a; reinforcing portion 33 connecting the fusion portion 32 and the coupling portion 31, The fusion portion 32 is a flange, characterized in that the fusion piece 321 extending in the axial direction of the tube in contact with the tube on the outer circumferential surface of the fusion portion 32 in order to increase the fusion surface with the tubular body which is porous Reinforced flanged pipe. delete delete delete The method of claim 2, Flange structure, characterized in that the one side of the coupling portion 31 of the flange extends in the axial direction of the tube to form a flange joint 34, the rubber joint 40 is coupled to the flange joint 34 Reinforced flanged pipe. The method of claim 6, Flange tube reinforcing the flange structure, characterized in that the side surface 341 and the contact surface 342 is formed on the surface facing the rubber packing 40 of the flange joint portion 34, respectively. In the packing for pipe connection to increase the watertightness, In the form of a "7", one side of the horizontal bar 41 of the "-" character is formed at one end of the side projection 43 in the direction perpendicular to the axis of the tube, one end of the vertical bar (42) of the | Rubber packing used for the connection of the flange pipe, characterized in that the contact projections are formed 44 is coupled to the side grooves 341 and the contact grooves 342 formed in the joint portion 34 of the flange. The method of claim 8, To connect the horizontal bar 41 of the rubber packing 40 to the edge portion of the rubber packing 40 of the "7" shape in order to more closely contact the joint portion 34 of the flange to the connection of the flange pipe Rubber packing used. In the pipe connector assembly using the flange pipe and rubber packing, The flange 30 of the flange tube is a tube having a cross-section of the opening of the "자의", the coupling portion 31 is formed with a coupling hole 311 to be coupled to the other flange, the tube is a porous tube And a welded portion 32 fused to each other, a reinforcement portion 33 connecting the fusion portion 32 and the coupling portion 31, and a joint portion extending and protruding in one direction of the coupling portion 31 in the axial direction of the tube. A flange tube 10 composed of 34; It is installed in the joint portion 34 that the different flange pipe 10 is in contact, in the form of a "7", one end of the horizontal bar 41 of the "-" character is formed with side projections 43 in a direction perpendicular to the axis of the pipe and , One side of the vertical bar (42) of the "ㅣ" is formed in the tangential projection 44 in the axial direction of the pipe, the rubber is installed in the side grooves 341 and the contact grooves 342 formed in the joint portion 34 of the flange, respectively Packing 40; rubber packing used for the connection of the flange pipe and the flange pipe reinforcing the flange structure, characterized in that consisting of the pipe connector assembly using the same. The method of claim 10, The fusion portion 32 is a flange, characterized in that the fusion piece 321 extending in the axial direction of the tube in contact with the tube on the outer circumferential surface of the fusion portion 32 in order to increase the fusion surface with the tubular body which is porous Rubber packing used for the connection of flanged pipe with reinforced structure and pipe connector assembly using the same. The method of claim 10, The spacing between the coupling holes 311 formed in the coupling portion 31, the rubber packing used for the connection of the flange pipe and the flange pipe reinforcing the flange structure, characterized in that formed in 13 ~ 18 cm and pipe connector using the same Assembly. The method of claim 10, The reinforcing part 33 of the flange has a plurality of reinforcing rods 331 protruding from the surface of the reinforcing part 33 to reinforce the connection of the coupling part 31 and the fusion part 32 is a coupling hole of the coupling part ( Rubber packing used for the connection of the flange pipe and the flange pipe reinforcing the flange structure, characterized in that spaced apart from the 311) and pipe connector assembly using the same. The method of claim 13, The protruding outer surface of the reinforcing rod 331 is formed of the same height as the center line on the center line of the coupling hole 311 formed in the coupling portion 31 of the flange of the flange pipe and flange pipe reinforced with the flange structure, characterized in that Rubber packing used for the connection and tubular connector assembly using the same. The method according to any one of claims 10 to 14, Between the coupling portion 31 of the different flange pipe is inserted into the cover member 70 of a circular band having a cross section "∪", the coupling portion 31 of the flange pipe on both side walls of the cover member 70 Rubber packing used for the connection between the flange pipe and the flange pipe reinforcing the flange structure, characterized in that the through-hole 71 is formed to correspond to the coupling hole 311 formed in the fastening by the bolt 50 and the pipe body using the same Connector assembly. The method according to any one of claims 10 to 14, Inserted into the connection portion of the flange tube, both sides grip the coupling portion 31 of the two flange tube, the inner side is inserted between the coupling portion 31 is " The cover member 70 of the circular band "in" is further installed, and each side wall of the cover member 70 is formed with a through hole 71 corresponding to the coupling hole 311 of the coupling part and fastened by the bolt 50. Rubber packing and the pipe connector assembly using the same used for the connection of the flange pipe and the flange pipe reinforced flange structure, characterized in that.