CN220082453U - Pipeline connecting elbow - Google Patents
Pipeline connecting elbow Download PDFInfo
- Publication number
- CN220082453U CN220082453U CN202321693217.6U CN202321693217U CN220082453U CN 220082453 U CN220082453 U CN 220082453U CN 202321693217 U CN202321693217 U CN 202321693217U CN 220082453 U CN220082453 U CN 220082453U
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- Prior art keywords
- butt joint
- annular
- sealing ring
- pipe
- annular sealing
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- 210000001503 joint Anatomy 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a pipeline connecting elbow, which relates to the technical field of elbows, and comprises a connecting elbow which is of an arc-shaped structure; the number of the second connecting pipes is two and the second connecting pipes are respectively connected with the two ends of the connecting bent pipe; the two butt joint seats are respectively connected to the tail ends of the two second connecting pipes, the butt joint seats are communicated with the inside of the second connecting pipes, annular grooves which are arranged in a plurality of steps are coaxially formed in the inner walls of the butt joint seats, and a second annular sealing ring is overlapped on the side surface of the bottom of each annular groove; the butt joint is of a ladder structure matched with the shape of the inner cavity of the butt joint seat, and the butt joint is arranged in the inner cavity of the butt joint seat. When the sealing device is used, the sealing rings are extruded and deformed, so that a multi-channel sealing structure is formed at the tail end connection part of the outer head, the tail end sealing performance of the elbow is better, and the sealing device can be used for a long time without air leakage.
Description
Technical Field
The utility model relates to the technical field of elbows, in particular to a pipeline connecting elbow.
Background
The natural gas pipeline refers to a pipeline for conveying natural gas from a mining place or a treatment plant to an urban gas distribution center or a user, and is also called a gas pipeline, and the natural gas pipeline positioned outside is mostly made of stainless steel pipes, so that the natural gas pipeline has certain strength.
In the prior art, two gas pipelines can be connected through elbow welding, and the method is very inconvenient to operate in a small space range; the flange connection is realized by welding flanges at two ends of the pipeline in advance, then welding flanges at two ends of the elbow in the same way, and then connecting the two pipelines through the elbow. However, since bolts are usually used to fix the two flanges together at present, and the tightness between the two flanges is only sealed by the sealing ring, the sealing mode is too simple, and the air leakage at the flange joint is possibly caused. To this end we propose a pipe connection elbow.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a pipeline connecting elbow.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a pipeline connecting elbow is designed, which comprises,
the connecting bent pipe is of an arc-shaped structure;
the two second connecting pipes are respectively connected to the two ends of the connecting bent pipe, and the included angle of the central axes of the two second connecting pipes is A, wherein A is more than 0 and less than 180 degrees;
the two butt joint seats are respectively connected to the tail ends of the two second connecting pipes, the butt joint seats are communicated with the inside of the second connecting pipes, annular grooves which are arranged in a plurality of steps are coaxially formed in the inner walls of the butt joint seats, and a second annular sealing ring is overlapped on the side surface of the bottom of each annular groove;
the butt joint is of a ladder structure matched with the shape of the inner cavity of the butt joint seat, the butt joint is arranged in the inner cavity of the butt joint seat, and the ladder surface in the butt joint seat and the ladder surface on the surface of the butt joint seat are mutually overlapped;
the butt joint is connected with a second connecting disc on the side surface of the butt joint, which is far away from the step structure, the side surface of one end of the butt joint seat, which is far away from the second connecting pipe, is connected with a first connecting disc, the second connecting disc and the first connecting disc are clung together and are connected, and the butt joint extrudes each second annular sealing ring.
Preferably, the cross section of the second annular sealing ring is of a rectangular structure.
Preferably, at least one clamping groove is formed in the surface of each step in the butt joint; and a third annular sealing ring is arranged in each clamping groove, the cross sections of the third annular sealing ring and the clamping grooves are circular, and the third annular sealing ring and the annular grooves are in elastic contact.
Preferably, the annular cavity is formed in the surface, opposite to the first connecting disc, of the second connecting disc, a first annular sealing ring is arranged between the second connecting disc and the first connecting disc, and two sides of the first annular sealing ring are arranged in the annular cavity.
Preferably, a plurality of connecting holes are formed in the edges of the second connecting disc and the first connecting disc, and the connecting holes are fastened through bolts.
Preferably, one side of each butt joint far away from the second connecting pipe is coaxially connected with a first connecting pipe, the inside of the connecting bent pipe is connected with a reinforcing plate with an arc-shaped structure, and two ends of the reinforcing plate are connected to the second connecting pipe.
Compared with the prior art, when the sealing device is used, the annular grooves of the stepped structure and the stepped structures on the surfaces of the butt joint are mutually extruded, so that a plurality of sealing rings are extruded and deformed, a multi-channel sealing structure is formed at the tail end connection part of the outer head, the tail end sealing performance of the elbow is better, and the sealing device can be used for a long time without air leakage.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a front view of the present utility model.
In the figure: 1. a connecting bent pipe; 2. a reinforcing plate; 3. a first connection plate; 4. an annular cavity; 5. an annular groove; 6. a second connection pad; 7. a connection hole; 8. a first connection pipe; 9. a butt joint seat; 10. a first annular seal ring; 11. a second annular seal ring; 12. a second connection pipe; 13. butt joint; 14. a clamping groove; 15. and a third annular sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 2, the present utility model provides a technical solution: a pipe connection elbow, comprising:
the connecting bent pipe 1 is of an arc-shaped structure;
the number of the second connecting pipes 12 is two, the two second connecting pipes are respectively connected to the two ends of the connecting bent pipe 1, the included angle of the central axes of the two second connecting pipes 12 is A,0 < A < 180 degrees, and the included angle of the two second connecting pipes 12 can be 45 degrees or 90 degrees according to the specific included angle which is more practical;
the number of the butt joint seats 9 is two, the butt joint seats 9 are respectively connected to the tail ends of the two second connecting pipes 12, the butt joint seats 9 are communicated with the inside of the second connecting pipes 12, as shown in fig. 1, annular grooves 5 which are arranged in a multi-step manner are coaxially formed in the inner wall of the butt joint seat 9, as shown in fig. 2, and a second annular sealing ring 11 is overlapped on the side surface of the bottom of each annular groove 5;
the utility model also comprises two butt joints 13, wherein the butt joints 13 are of a ladder structure matched with the shape of the inner cavity of the butt joint seat 9, the butt joints 13 are arranged in the inner cavity of the butt joint seat 9, and the ladder surface in the butt joint seat 9 and the ladder surface on the surface of the butt joint 13 are mutually overlapped;
wherein, be connected with second connection pad 6 on the side that butt joint 13 kept away from the ladder structure, be connected with first connection pad 3 on the one end side that butt joint seat 9 kept away from second connecting pipe 12, second connection pad 6 and first connection pad 3 are hugged closely together and are linked to each other, and butt joint 13 extrudees each second ring seal 11.
Specifically, as shown in fig. 2, after the butt joint 13 is placed inside the butt joint seat 9, the annular groove 5 of the stepped structure and the stepped structure on the surface of the butt joint 13 are matched and mutually extruded, so that the plurality of second annular sealing rings 11 on the side surfaces of the steps are extruded and deformed, and the arranged stepped structure can enable the tail end connection part of the outer head to form a plurality of sealing structures, so that the tail end sealing performance of the elbow is better.
As shown in fig. 2, the cross section of the second annular sealing ring 11 is in a rectangular structure, and the contact area is large.
As shown in fig. 2, at least one clamping groove 14 is formed on the surface of each step in the abutment 13; a third annular sealing ring 15 is arranged in each clamping groove 14, the cross sections of the third annular sealing ring 15 and the clamping grooves 14 are circular, the third annular sealing ring 15 and the annular grooves 5 are in elastic contact, and the inner walls of the third annular sealing ring 15 and the annular grooves 5 are extruded to further obtain sealing.
As shown in fig. 1, the opposite surfaces of the second connecting disc 6 and the first connecting disc 3 are provided with annular cavities 4, a first annular sealing ring 10 is arranged between the second connecting disc 6 and the first connecting disc 3, two sides of the first annular sealing ring 10 are arranged in the annular cavities 4, the cross section of the first annular sealing ring 10 is of a rectangular structure, the thickness of the first annular sealing ring 10 is greater than the depth of the two annular cavities 4, an extrusion gap is formed between the first connecting disc 3 and the second connecting disc 6, a plurality of connecting holes 7 are formed at the edges of the second connecting disc 6 and the first connecting disc 3, the connecting holes 7 are fastened through bolts, the distance between the first connecting disc 3 and the second connecting disc 6 is conveniently adjusted, and the first connecting disc 3 and the second connecting disc 6 are enabled to be more tightly extruded by each sealing ring.
As shown in fig. 1 and fig. 2, a first connecting pipe 8 is coaxially connected to one side, far away from the second connecting pipe 12, of each butt joint 13, the first connecting pipe 8 is welded and fixed on a gas pipeline, a reinforcing plate 2 with an arc-shaped structure is connected to the inside of the connecting elbow 1, two ends of the reinforcing plate 2 are connected to the second connecting pipe, and bending resistance of the connecting elbow 1 is enhanced.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A pipe connecting elbow is characterized by comprising,
the connecting bent pipe (1) is of an arc-shaped structure;
the two second connecting pipes (12) are respectively connected to two ends of the connecting bent pipe (1), and the included angle of the central axes of the two second connecting pipes (12) is A, wherein A is more than 0 and less than 180 degrees;
the two butt joint seats (9) are respectively connected to the tail ends of the two second connecting pipes (12), the butt joint seats (9) are communicated with the inside of the second connecting pipes (12), annular grooves (5) which are arranged in a plurality of steps are coaxially formed in the inner wall of the butt joint seat (9), and a second annular sealing ring (11) is overlapped on the side face of the bottom of each annular groove (5);
the butt joint (13) is of a ladder structure matched with the shape of the inner cavity of the butt joint seat (9), the butt joint (13) is arranged in the inner cavity of the butt joint seat (9), and the ladder surface in the butt joint seat (9) and the ladder surface on the surface of the butt joint (13) are mutually overlapped;
the butt joint (13) is connected with a second connecting disc (6) on the side surface far away from the step structure, the side surface of one end of the butt joint seat (9) far away from the second connecting tube (12) is connected with a first connecting disc (3), the second connecting disc (6) and the first connecting disc (3) are tightly attached together and connected, and the butt joint (13) extrudes each second annular sealing ring (11).
2. A pipe connection elbow according to claim 1, wherein: the cross section of the second annular sealing ring (11) is of a rectangular structure.
3. A pipe connection elbow according to claim 1, wherein: at least one clamping groove (14) is formed in the surface of each step in the butt joint (13); and a third annular sealing ring (15) is arranged in each clamping groove (14), the cross sections of the third annular sealing ring (15) and the clamping grooves (14) are circular, and the third annular sealing ring (15) and the annular grooves (5) are in elastic contact.
4. A pipe connection elbow according to claim 1, wherein: annular cavities (4) are formed in the surfaces, opposite to the surfaces, of the second connecting disc (6) and the first connecting disc (3), first annular sealing rings (10) are arranged between the second connecting disc (6) and the first connecting disc (3), and two sides of each first annular sealing ring (10) are arranged in the annular cavities (4).
5. A pipe connection elbow according to claim 1 or 4, wherein: a plurality of connecting holes (7) are formed in the edges of the second connecting disc (6) and the first connecting disc (3), and the connecting holes (7) are fastened through bolts.
6. A pipe connection elbow according to claim 1, wherein: one side of each butt joint (13) far away from the second connecting pipe (12) is coaxially connected with a first connecting pipe (8), the inside of each connecting bent pipe (1) is connected with a reinforcing plate (2) with an arc-shaped structure, and two ends of each reinforcing plate (2) are connected to the second connecting pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321693217.6U CN220082453U (en) | 2023-06-30 | 2023-06-30 | Pipeline connecting elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321693217.6U CN220082453U (en) | 2023-06-30 | 2023-06-30 | Pipeline connecting elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220082453U true CN220082453U (en) | 2023-11-24 |
Family
ID=88825724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321693217.6U Active CN220082453U (en) | 2023-06-30 | 2023-06-30 | Pipeline connecting elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220082453U (en) |
-
2023
- 2023-06-30 CN CN202321693217.6U patent/CN220082453U/en active Active
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