CN213900231U - Cross-linked polyethylene pipeline flange connecting structure - Google Patents
Cross-linked polyethylene pipeline flange connecting structure Download PDFInfo
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- CN213900231U CN213900231U CN202022691489.5U CN202022691489U CN213900231U CN 213900231 U CN213900231 U CN 213900231U CN 202022691489 U CN202022691489 U CN 202022691489U CN 213900231 U CN213900231 U CN 213900231U
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Abstract
The application discloses a crosslinked polyethylene pipeline flange connecting structure, belongs to the field of pipe fittings, is used for connecting a crosslinked polyethylene pipeline with other pipelines or devices, and comprises the crosslinked polyethylene pipeline and a connecting flange A, wherein the end part of the crosslinked polyethylene pipeline penetrates through the connecting flange A and then is heated, flared and formed into a connecting end, and a concave-convex structure is processed at the inlet end face of the connecting end; the connecting flange A is connected with the connecting flange B through a bolt fastener, and the concave-convex structure processed on the connecting end is in contact with the end face of the connecting flange B. In view of above-mentioned technical scheme, this application can realize using the stable connection between the nonmetal pipeline of cross-linked polyethylene material as the representative and the metal pipeline, is guaranteeing to connect the quantity and the cost that reduce required pipe fitting simultaneously of stable new pipeline.
Description
Technical Field
The application belongs to the pipe fitting field, and specifically relates to a crosslinked polyethylene pipeline flange connection structure.
Background
The pipeline is used as a main device for transporting gas or liquid, and the material used for the pipeline is wide, such as cross-linked polyethylene material and metal material. The cross-linked polyethylene pipeline can not be hot-melt connected by adopting a hot-melt mode of thermoplastic plastics because of the cross-linking reaction in the production and processing of the pipeline; therefore, the pipes are generally connected by a mechanical connection method. In the process of connecting the two pipelines by adopting a mechanical connecting method, if no proper pipe fitting is used for connection, the connection problem easily exists at the connection position of the two pipelines, so that the connection is not firm enough, or the required connecting pipe fittings are more in number and more complex in structure, so that the construction cost is increased.
Disclosure of Invention
An object of this application is to provide a crosslinked polyethylene pipeline flange connection structure, its stable connection that can realize crosslinked polyethylene pipeline more than DN40 and devices such as metal pipeline or metal pipeline valve, water pump reduces the quantity and the cost of required pipe fitting simultaneously in guaranteeing to connect stable new pipeline.
In order to achieve the purpose, the method is realized by the following technical scheme:
the flange connecting structure of the crosslinked polyethylene pipeline comprises the crosslinked polyethylene pipeline and a connecting flange A, wherein the end part of the crosslinked polyethylene pipeline penetrates through the connecting flange A and then is heated, flared and formed into a connecting end, and a concave-convex structure is processed at the inlet end face of the connecting end; the connecting flange A is connected with the connecting flange B through a bolt fastener, and the concave-convex structure processed on the connecting end is in contact with the end face of the connecting flange B.
Further, the concave-convex structure processed on the connecting end in the application comprises a first annular bulge, a second annular bulge and a third annular bulge, wherein a first annular groove is formed between the first annular bulge and the second annular bulge, and a second annular groove is formed between the second annular bulge and the third annular bulge.
Further, in the present application, a sealing ring is disposed in the first annular groove and/or the second annular groove.
Furthermore, the first annular protrusion is located at the edge of the connecting end, and the thickness of the first annular protrusion gradually increases from the radius direction of the connecting end; the second annular bulge is positioned in the middle of the connecting end, and the thickness of the second annular bulge is gradually increased in the radial direction of the connecting end approaching to the circle center; the third annular bulge is located at the position close to the circle center of the connecting end and has the same thickness in the radial direction close to the circle center of the connecting end.
Further, the position department that link in this application and flange A laminating be provided with concave-convex structure.
Compared with the prior art, the beneficial effects of this application are:
this application can realize the cross-linked polyethylene pipeline more than DN40 and the stable connection of devices such as metal pipeline or metal pipeline valve, water pump, is guaranteeing to connect the quantity and the cost that reduce required pipe fitting simultaneously of stable new pipeline.
Drawings
Fig. 1 is a first structural diagram of the present application.
Fig. 2 is a structural schematic diagram of the present application.
In the figure: 1. a cross-linked polyethylene pipe; 2. a connecting flange A; 3. a connecting end; 4. a connecting flange B; 5. a metal pipe; 6. a seal ring body; 7. a first annular projection; 8. a second annular projection; 9. a third annular projection.
Detailed Description
The technical solutions described in the present application are further described below with reference to examples. It should be noted that, in the following paragraphs, possible directional terms including, but not limited to, "upper, lower, left, right, front, rear" and the like are used, and all directions are meant to correspond to the visual directions shown in the drawings of the specification, which should not be construed as limiting the scope or technical solutions of the present application, and are only for facilitating the better understanding of the technical solutions of the present application by those skilled in the art.
In the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Example 1
A cross-linked polyethylene pipeline flange connecting structure comprises a cross-linked polyethylene pipeline 1 and a connecting flange A2, wherein the end part of the cross-linked polyethylene pipeline 1 penetrates through the connecting flange A2 and then is heated, flared and formed into a connecting end 3, and a concave-convex structure is processed at the inlet end face of the connecting end 3; the connecting flange A2 is connected with the connecting flange B4 through bolt fasteners, and a concave-convex structure processed on the connecting end 3 is in contact with the end face of the connecting flange B4.
Example 2
A kind of cross-linked polyethylene pipeline flange connection structure, wherein the concave-convex structure processed on the said link 3 includes the first annular bulge 7, the second annular bulge 8 and the third annular bulge 9, wherein form the first annular groove between first annular bulge 7 and second annular bulge 8, form the second annular groove between third annular bulge 9 and the second annular bulge 8; a sealing ring 6 is arranged in the first annular groove and/or the second annular groove; the first annular bulge 7 is positioned at the edge of the connecting end 3, and the thickness of the first annular bulge gradually increases along the radius direction of the connecting end 3; the second annular bulge 8 is positioned in the middle of the connecting end 3, and the thickness of the second annular bulge gradually increases in the radial direction of the connecting end 3 approaching the circle center; the third annular bulge 9 is located at a position close to the circle center of the connecting end 3 and has the same thickness in the radial direction close to the circle center of the connecting end 3. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.
Example 3
The utility model provides a crosslinked polyethylene pipeline flange connection structure, the position department that link 3 and flange A2 laminating is provided with concave-convex structure. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.
On the basis of the above-mentioned embodiments, the present application continues to describe the technical features and functions of the technical features mentioned therein in detail to help those skilled in the art to fully understand the technical solutions of the present application and reproduce the same.
As shown in fig. 1 to 2, the cross-linked polyethylene pipe 1 described in the present application is provided with a connection flange a2 at its end portion to be connected, and the connection flange a2 can be connected to the connection flange B4 by means of bolt fasteners. The connecting flange B4 is used for fixing with the metal pipe 5.
After the cross-linked polyethylene pipeline 1 penetrates through the connecting flange A2 at the end part, the connecting end 3 is formed by molding a heating die, the end face of the connecting end 3 is flush with the end face of the connecting flange A2, and the end face can be attached. As shown in fig. 1 to 2, concentric annular protrusions are provided on the end surface of the connection end 3 contacting the connection flange B4, and the annular protrusions form a concave-convex structure on the end surface of the connection end 3, and the concave-convex structure can realize stable connection and sealed connection between the connection end 3 and the connection flange B4.
In the present application, the concave-convex structure includes a first annular protrusion 7, a second annular protrusion 8, and a third annular protrusion 9, wherein a first annular groove is formed between the first annular protrusion 7 and the second annular protrusion 8, and a second annular groove is formed between the second annular protrusion 8 and the third annular protrusion 9. The bottom surfaces of the first annular groove and the second annular groove may be flush with the end surface of the connection end 3 or lower than the end surface of the connection end 3. Placed the seal ring body 6 in first annular groove, second annular groove is inside, and seal ring body 6 can assist the improvement that realizes junction sealing performance together with concave-convex structure.
In the present application, the longitudinal section of the first annular protrusion 7 is triangular, and the height of the first annular protrusion protruding from the end surface of the connecting end 3 is less than or equal to that of the second annular protrusion 8. The longitudinal section of the second annular bulge 8 is also triangular, and the height of the second annular bulge, which protrudes out of the connecting end 3, is equal to or greater than the height of the first annular bulge 7. The height of the third annular projection 9 is equal to the height of the first annular projection 7, which is equal in height in the radial direction of the connection end 3. When flange A2 passes through bolt assembly with flange B4 and is connected, the link 3 atress that is located between the two takes place to be out of shape, leads to the deformation of first annular arch 7, second annular arch 8, third annular arch 9, and the cooperation is located the sealing washer of first annular groove, second annular groove and is realized the sealed of link 3.
In this application, in order to realize the antiskid between flange a2 and the outer terminal surface of link 3, can process on the outer terminal surface of link 3 has concave-convex structure, realizes the deformation after external force is applyed, impels the improvement of the stability of being connected between the outer terminal surface of link 3 and flange a 2.
Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (5)
1. The utility model provides a crosslinked polyethylene pipeline flange connection structure, includes crosslinked polyethylene pipeline (1) and flange A (2), its characterized in that: the end part of the cross-linked polyethylene pipeline (1) penetrates through the connecting flange A (2) and then is heated, flared and formed into a connecting end (3), and a concave-convex structure is processed at the inlet end face of the connecting end (3); the connecting flange A (2) is connected with the connecting flange B (4) through a bolt fastener, and the concave-convex structure processed on the connecting end (3) is in contact with the end face of the connecting flange B (4).
2. The crosslinked polyethylene pipe flange connection structure according to claim 1, wherein: the concave-convex structure processed on the connecting end (3) comprises a first annular bulge (7), a second annular bulge (8) and a third annular bulge (9), wherein a first annular groove is formed between the first annular bulge (7) and the second annular bulge (8), and a second annular groove is formed between the second annular bulge (8) and the third annular bulge (9).
3. The crosslinked polyethylene pipe flange connection structure according to claim 2, wherein: and a sealing ring (6) is arranged in the first annular groove and/or the second annular groove.
4. The crosslinked polyethylene pipe flange connection structure according to claim 3, wherein: the first annular bulge (7) is positioned at the edge of the connecting end (3), and the thickness of the first annular bulge gradually increases along the radius direction of the connecting end (3); the second annular bulge (8) is positioned in the middle of the connecting end (3) and the thickness of the second annular bulge is gradually increased in the radial direction of the connecting end (3) close to the circle center; the third annular bulge (9) is located at the position close to the circle center of the connecting end (3) and has the same thickness in the radius direction close to the circle center of the connecting end (3).
5. The crosslinked polyethylene pipe flange connection structure according to claim 4, wherein: and a concave-convex structure is arranged at the position where the connecting end (3) is attached to the connecting flange A (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022691489.5U CN213900231U (en) | 2020-11-19 | 2020-11-19 | Cross-linked polyethylene pipeline flange connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022691489.5U CN213900231U (en) | 2020-11-19 | 2020-11-19 | Cross-linked polyethylene pipeline flange connecting structure |
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| CN213900231U true CN213900231U (en) | 2021-08-06 |
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| CN202022691489.5U Active CN213900231U (en) | 2020-11-19 | 2020-11-19 | Cross-linked polyethylene pipeline flange connecting structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377708A (en) * | 2020-11-19 | 2021-02-19 | 宏岳塑胶集团股份有限公司 | Cross-linked polyethylene pipeline flange connecting structure |
| CN113790325A (en) * | 2021-09-16 | 2021-12-14 | 林汉柱 | Compound PE pipe of high strength convenient to it is fixed |
-
2020
- 2020-11-19 CN CN202022691489.5U patent/CN213900231U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377708A (en) * | 2020-11-19 | 2021-02-19 | 宏岳塑胶集团股份有限公司 | Cross-linked polyethylene pipeline flange connecting structure |
| CN113790325A (en) * | 2021-09-16 | 2021-12-14 | 林汉柱 | Compound PE pipe of high strength convenient to it is fixed |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220517 Address after: 432000 Liuhe Industrial Park, Xiaogan Economic Development Zone, Hubei Province Patentee after: HUBEI HONGYUE PLASTIC Co.,Ltd. Address before: 066000 No.81 Longhai Road, Qinhuangdao Economic and Technological Development Zone, Hebei Province Patentee before: HONGYUE PLASTIC GROUP CO.,LTD. |
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| TR01 | Transfer of patent right |