CN219912128U - Corrugated pipe with assembly flange - Google Patents
Corrugated pipe with assembly flange Download PDFInfo
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- CN219912128U CN219912128U CN202320721816.8U CN202320721816U CN219912128U CN 219912128 U CN219912128 U CN 219912128U CN 202320721816 U CN202320721816 U CN 202320721816U CN 219912128 U CN219912128 U CN 219912128U
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- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model relates to a corrugated pipe with an assembly flange. The technical problem that the reliability of the existing corrugated pipe flange connection is poor is solved. This corrugated pipe of band assembly flange includes: the corrugated pipe comprises a corrugated cylindrical part, and a flange edge extending outwards is arranged at the radial edge of one end of the corrugated cylindrical part; the flange sleeve is sleeved outside the flange edge, one side of the flange sleeve is provided with an axial limiting ring which is abutted against one side of the flange edge, which is close to the corrugated cylindrical part, and one end of the flange edge, which is far away from the corrugated cylindrical part, protrudes out of the plane of the end part of the flange sleeve; the flange ring is arranged at one end of the flange edge far away from the corrugated cylindrical part. The corrugated pipe with the assembly flange forms an external protection structure at the end part of the corrugated pipe, the weight of the end part is increased, the shaking performance of a port is weakened, the stability of flange connection is guaranteed, the flange edge is completely pressed into the inner sealing ring in an interference manner, the sealing effect is improved, and meanwhile, the axial fluctuation of the flange edge is buffered.
Description
Technical Field
The utility model belongs to the field of corrugated pipes, and relates to a corrugated pipe with an assembly flange.
Background
The bellows is generally through having the ring flange at the port welding, and rethread ring flange is direct to realize flange sealing connection with other pipelines, but the inside fluid pressure that the bellows received in the use, thermal expansion, mechanical vibration lead to the bellows atress to take place axial displacement and radial bending to transmit to the flange joint port of bellows, the screw thread fastening structure of using commonly used is inefficacy easily in long-term use, leads to flange joint end seam clearance increase, takes place the leakage problem.
For example, chinese patent literature discloses a bellows flange joint [202121572448.2], including the bellows body, the both ends of bellows body are provided with front joint and rear joint respectively, and front joint and rear joint all include the ring flange, and open the lateral surface of ring flange in the front joint has the draw-in groove, and the lateral surface of ring flange is fixed with the connecting block in the rear joint, and ring flange medial surface is fixed with coaxial coupling pipe and fixed pipe from inside to outside in proper order, and the port outer wall of fixed pipe other end has seted up a plurality of spread grooves that are circular array. This connect is used for assisting the cup jointing of bellows body through being provided with the stand pipe of loudspeaker formula structure at the outer port of connecting pipe for bellows body can laborsaving swift cup joint on the connecting pipe, and the bellows body after cup jointing can be blocked and lock by a plurality of spacing fixture blocks under fixed pipe and the spacing pipe mutually support, has effectively avoided the bellows body to drop in the use, has promoted the in-service use effect of bellows body, but this bellows can't guarantee bellows body port joint strength and leakproofness under long-term high compressive strength.
Disclosure of Invention
The present utility model aims to solve the above problems of the prior art and to provide a bellows with an assembly flange.
The aim of the utility model can be achieved by the following technical scheme:
the bellows with assembly flange includes:
the corrugated pipe comprises a corrugated cylindrical part, and a flange edge extending outwards is arranged at the radial edge of one end of the corrugated cylindrical part;
the flange sleeve is sleeved outside the flange edge, one side of the flange sleeve is provided with an axial limiting ring which is abutted against one side of the flange edge, which is close to the corrugated cylindrical part, and one end of the flange edge, which is far away from the corrugated cylindrical part, protrudes out of the plane of the end part of the flange sleeve;
the flange ring is arranged at one end of the flange edge away from the corrugated cylindrical part, the flange ring is connected with the flange sleeve in a butt joint mode through a fastening structure, a concave annular mounting groove is formed in one side, close to the flange edge, of the flange ring, and an inner sealing ring corresponding to the plane of the end part of the flange edge is arranged in the annular mounting groove.
Further, the outer wall of one side of the inner sealing ring is provided with at least two annular convex strips which axially protrude and are arranged at radial intervals.
Further, the inner diameter of the flange ring is equal to the inner diameter of the flange edge, and the outer diameter of the flange ring is equal to the outer diameter of the flange sleeve.
Further, an annular step with a rectangular section is arranged on one side, close to the corrugated cylindrical part, of the flange edge, and the axial limiting ring is abutted against the annular step.
Further, a first recessed annular groove is formed in the corner end, close to the flange edge, of the annular step, and a first outer sealing ring is arranged in the first annular groove.
Further, a conical surface with the outer diameter gradually decreasing outwards is arranged on one side, close to the corrugated cylindrical portion, of the flange edge, and a conical hole attached to the conical surface is formed in the inner side of the axial limiting ring.
Further, the outer contour of the flange edge is any one of rectangle or ellipse.
Further, a second annular groove is formed in the outer wall of one side, close to the flange sleeve, of the flange ring, and a second outer sealing ring is arranged in the annular groove.
Further, the fastening structure comprises any one of a threaded fastening structure, a hoop structure and a U-shaped buckle structure.
Compared with the prior art, the corrugated pipe with the assembly flange has the advantages that the flange edge is attached and embedded in the space between the flange sleeve and the flange edge, an external protection structure of the end part of the corrugated pipe is formed, the weight of the end part is increased, the shaking performance of the port is weakened, the stability of flange connection is guaranteed, the flange edge is completely pressed into the inner sealing ring in an interference manner, the sealing effect is improved, and meanwhile, the axial fluctuation of the flange edge is buffered.
Drawings
Fig. 1 is a schematic view of a bellows with an assembly flange according to the present utility model.
Fig. 2 is a schematic view of a flange ring provided on the bellows with the assembly flange of fig. 1.
Fig. 3 is a schematic view of an annular step provided by the bellows of fig. 1 with an assembly flange.
Fig. 4 is a second schematic view of an embodiment of the bellows with assembly flange of fig. 1.
Fig. 5 is a schematic view of the conical surface of the bellows of fig. 1 with an assembly flange.
10, corrugated pipe; 11. a corrugated cylindrical portion; 12. a flange edge; 13. an annular step; 14. a first annular groove; 15. a first outer seal ring; 16. a conical surface; 20. a flange sleeve; 21. an axial confinement ring; 24. a tapered bore; 30. a flange ring; 31. an annular mounting groove; 32. an inner seal ring; 33. annular raised strips; 34. a second annular groove; 35. a second outer seal ring; 40. and a fastening structure.
Detailed Description
Example 1
Fig. 1 to 3 are schematic structural views of a bellows with an assembly flange according to the present utility model. This corrugated pipe of band assembly flange includes: a bellows 10; the flange sleeve 20 sleeved outside the end of the corrugated tube 10, and the flange ring 30 disposed at the end of the corrugated tube 10 and connected to the flange sleeve 20, it is conceivable that the corrugated tube with the assembly flange further includes other functional components and specific structures, such as an external connection tube, an installation structure, etc., which are all known technologies by those skilled in the art, and therefore will not be described in detail herein.
The corrugated pipe 10 comprises a corrugated cylindrical portion 11, a flange edge 12 extending outwards is arranged at the radial edge of one end of the corrugated cylindrical portion 11, the corrugated cylindrical portion 11 and the flange edge 12 are of an integrated structure, the structure is compact, connection is reliable, specifically, after the corrugated portion which is measured at the outermost part of the corrugated cylindrical portion 11 is flattened, an annular flat surface at the end part of the corrugated cylindrical portion 11 is formed, the flange edge 12 is welded on the annular flat surface, the corrugated cylindrical portion 11 and the flange edge 12 are convenient to process respectively in the early stage, the later stage welding is integrated, and the processing technology difficulty is reduced.
The flange sleeve 20 is sleeved outside the flange edge 12, the inner wall of the flange sleeve 20 is attached to the outer wall of the flange edge 12, and the attachment performance can be maintained by arranging a soft cushion in the inner wall of the flange sleeve 20. During installation, the flange sleeve 20 is sleeved on the corrugated pipe 10 from one end far away from the flange edge 12, and one side of the flange sleeve 20 is provided with an axial limiting ring 21 which is abutted against one side of the flange edge 12, which is close to the corrugated cylindrical part 11, so that single-end axial limiting of the flange edge 12 is realized. When the corrugated pipe 10 adopts the double-end flange edge 12 structure, the flange sleeve 20 needs to be welded with the end part of the corrugated pipe 10 at the flange edge 12 and is sleeved on the outer side of the corrugated pipe 10 in advance to realize installation.
The flange ring 30 is disposed at one end of the flange 12 far from the corrugated tube-shaped portion 11, and is welded at the end of the outer tube for pipeline communication, or the connection port plug can be kept closed at the inner side when not in use. The inner diameter of the flange ring 30 is equal to the inner diameter of the flange rim 12, and the outer diameter of the flange ring 30 is equal to the outer diameter of the flange sleeve 20. The size design of the flange ring 30 ensures that the pipe diameters of connecting pipelines of the corrugated pipe 10 are uniform, and when the flange ring 30 is tightly attached to the flange sleeve 20, the outer wall of the whole outline is smooth. The flange ring 30 is abutted against the flange sleeve 20, and the flange ring 30 is connected with the flange sleeve 20 through a fastening structure 40, and a conventional fastening structure 40 such as a screw fastening structure 40 is formed by a plurality of groups of bolts and nuts which axially penetrate through the flange ring 30 and the flange ring 30 in a matched manner. The structure forms an external protection structure of the end part of the corrugated pipe 10, aggravates the weight of the end part, weakens the shaking property of the port, and ensures the stability of flange connection. The fastening structure 40 may also be any one of a U-shaped fastening structure, a threaded fastening structure 40, and a U-shaped fastening structure, which are all common manners in flange connection, are prior art in the art, and are not described herein.
The flange ring 30 is close to one side of flange limit 12 and is equipped with concave annular mounting groove 31, be equipped with in the annular mounting groove 31 with flange limit 12 end plane corresponding inner seal circle 32, inner seal circle 32 outer wall flushes with flange ring 30 terminal surface, inner seal circle 32's external contour is greater than or equal to flange limit 12's external contour, flange limit 12 is kept away from the one end protrusion of ripple tube-shape portion 11 in flange cover 20 end plane simultaneously, ensure that flange limit 12 interference is pressed in completely in the inner seal circle 32, improve sealed effect, simultaneously have the cushioning effect to the axial fluctuation of flange limit 12, inner seal circle 32 one side outer wall is equipped with at least two axial outstanding and is radial annular sand grip 33 that the interval set up, form multichannel seal protection between annular sand grip 33 and the flange limit 12, further promote the sealed effect between flange limit 12 and the inner seal circle 32.
The flange 12 is provided with an annular step 13 with a rectangular cross section on one side close to the corrugated cylindrical part 11, the axial limiting ring 21 is abutted against the annular step 13, and radial rotation limitation exists between the flange 12 and the flange sleeve 20 through the structural design, so that the problem of forced torsion of the corrugated pipe 10 is avoided. It is contemplated that the same radial rotation limitation of the bellows 10 as described above may be achieved by designing the outer contour of the flange 12 to be either rectangular or elliptical.
In this embodiment, the corner end of the annular step 13 near the flange edge 12 is provided with a concave first annular groove 14, a first outer sealing ring 15 is arranged in the first annular groove 14, the first outer sealing ring 15 is pressed between the annular step 13 and the flange sleeve 20, the first outer sealing ring 15 is used as an inevitable gap supplement when the annular step 13 and the flange sleeve 20 are actually used, and the sealing performance can still be ensured and the radial jitter buffer effect can be realized during the vibration of the end part of the corrugated pipe 10.
The outer wall of one side of the flange ring 30, which is close to the flange sleeve 20, is provided with a second annular groove 34, a second outer sealing ring 35 is arranged in the annular groove, the second annular groove 34 provides mounting stability for the second outer sealing ring 35, and the second outer sealing ring 35 is extruded between the flange ring 30 and the flange sleeve 20 to form flange connection outer sealing.
Example two
Referring to fig. 4 to 5, the structure and principle of the present embodiment are basically the same as those of the first embodiment, except that: the flange 12 is provided with a tapered surface 16 which gradually decreases outwards in the outer diameter of the flange 12 on the side close to the corrugated cylindrical portion 11, and the inner side of the axial limiting ring 21 is provided with a tapered hole 24 which is attached to the tapered surface 16. The cooperation of the conical hole 24 and the conical surface 16 replaces the annular step 13 structure of the embodiment, the sleeve 20 is sleeved and led in, the flange 20 is more tightly attached to the flange edge 12, and the purpose of limiting the radial rotation of the corrugated pipe 10 is achieved as described above.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (9)
1. A corrugated pipe with an assembly flange, the corrugated pipe with an assembly flange comprising:
the corrugated pipe comprises a corrugated cylindrical part, and a flange edge extending outwards is arranged at the radial edge of one end of the corrugated cylindrical part;
the flange sleeve is sleeved outside the flange edge, one side of the flange sleeve is provided with an axial limiting ring which is abutted against one side of the flange edge, which is close to the corrugated cylindrical part, and one end of the flange edge, which is far away from the corrugated cylindrical part, protrudes out of the plane of the end part of the flange sleeve;
the flange ring is arranged at one end of the flange edge away from the corrugated cylindrical part, the flange ring is connected with the flange sleeve in a butt joint mode through a fastening structure, a concave annular mounting groove is formed in one side, close to the flange edge, of the flange ring, and an inner sealing ring corresponding to the plane of the end part of the flange edge is arranged in the annular mounting groove.
2. The bellows with assembly flange according to claim 1, wherein the outer wall of one side of the inner seal ring is provided with at least two annular protruding strips protruding axially and arranged at radial intervals.
3. The corrugated pipe with an assembled flange according to claim 1, wherein the inner diameter of the flange ring is equal to the inner diameter of the flange rim, and the outer diameter of the flange ring is equal to the outer diameter of the flange sleeve.
4. A bellows with assembled flange according to claim 1, wherein the flange side is provided with an annular step of rectangular cross section on the side close to the bellows-like portion, and the axial limiting ring abuts against the annular step.
5. The corrugated pipe with the assembled flange according to claim 4, wherein a first recessed annular groove is formed in a corner end of the annular step, which is close to the flange edge, and a first outer sealing ring is arranged in the first annular groove.
6. The corrugated pipe with the assembled flange according to claim 1, wherein a tapered surface with the outer diameter gradually decreasing outwards of the flange edge is arranged on one side, close to the corrugated cylindrical portion, of the flange edge, and a tapered hole attached to the tapered surface is arranged on the inner side of the axial limiting ring.
7. The corrugated pipe with assembled flange according to claim 1, wherein the flange side outer profile is either rectangular or oval.
8. The corrugated pipe with the assembly flange according to claim 1, wherein a second annular groove is formed in the outer wall of one side, close to the flange sleeve, of the flange ring, and a second outer sealing ring is arranged in the annular groove.
9. The corrugated pipe with the assembly flange according to claim 1, wherein the fastening structure comprises any one of a screw fastening structure, a hoop structure, and a U-shaped buckle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320721816.8U CN219912128U (en) | 2023-03-30 | 2023-03-30 | Corrugated pipe with assembly flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320721816.8U CN219912128U (en) | 2023-03-30 | 2023-03-30 | Corrugated pipe with assembly flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219912128U true CN219912128U (en) | 2023-10-27 |
Family
ID=88462826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320721816.8U Active CN219912128U (en) | 2023-03-30 | 2023-03-30 | Corrugated pipe with assembly flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219912128U (en) |
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2023
- 2023-03-30 CN CN202320721816.8U patent/CN219912128U/en active Active
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