CN213900285U - Conversion connecting pipe fitting for pipeline - Google Patents
Conversion connecting pipe fitting for pipeline Download PDFInfo
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- CN213900285U CN213900285U CN202022685578.9U CN202022685578U CN213900285U CN 213900285 U CN213900285 U CN 213900285U CN 202022685578 U CN202022685578 U CN 202022685578U CN 213900285 U CN213900285 U CN 213900285U
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- annular bulge
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Abstract
The application discloses a conversion connecting pipe fitting for a pipeline, which is used in the field of pipeline connecting pieces and belongs to the field of pipe fittings, wherein a polygonal structure is arranged on a body, and threaded connecting ends formed by concave-convex structures and external threads are respectively arranged on the bodies on two sides of the polygonal structure; the second-level annular bulge and the third-level annular bulge form a whole and are protruded out of the outer wall of the body, and the outer diameter of the third-level annular bulge is larger than that of the second-level annular bulge; and a polygonal connecting part is arranged between the three-stage annular bulge and the polygonal structure, the polygonal structure is used for being matched with a tool to realize connection of the threaded connecting end, and the concave-convex structure is used for being connected with a cold-expanded crosslinked polyethylene pipeline. The application can be suitable for various forms of pipeline connection.
Description
Technical Field
The application belongs to the field of pipe connectors, and particularly relates to a conversion connecting pipe fitting for a pipeline.
Background
The pipeline needs to adopt the pipe fitting to connect in the use, and the connected mode of pipe fitting is various, for example grafting, threaded connection etc.. For the pipeline made of the crosslinked polyethylene material, the crosslinked polyethylene pipeline is subjected to crosslinking reaction in the production process, cannot be connected with other pipelines or pipe fittings in a hot melting mode, and can only be connected in a cold expansion type mechanical connection mode, so that the connection of the crosslinked polyethylene pipeline and the pipelines or pipe fittings made of other materials is limited. How to connect the cross-linked polyethylene pipeline with other types of pipelines or pipe fittings or convert other types of pipelines or pipe fittings into a cross-linked polyethylene pipeline system becomes one of the technical problems to be solved by the industry.
Disclosure of Invention
The utility model aims at providing a pipeline is with conversion connecting pipe fitting, it has the required concave-convex structure of pipeline cold expanding type connection also to have the helicitic texture that metal thread pipe fitting is inlayed to the plastic conduit or is connected with metal pipeline screw thread part, can pass through threaded connection to other types of pipeline and convert cold expanding type crosslinked polyethylene pipe-line system into, also can convert crosslinked polyethylene pipe-line system into other types of pipeline.
In order to achieve the purpose, the method is realized by the following technical scheme:
the pipe fitting comprises a body, wherein a polygonal structure is arranged on the body, threaded connection ends formed by concave-convex structures and external threads are respectively arranged on the body on two sides of the polygonal structure, the concave-convex structures are sequentially provided with a primary annular bulge, a secondary annular bulge and a tertiary annular bulge in the plugging direction, and the primary annular bulge is positioned at the end part of the body and protrudes out of the outer wall of the body; the second-level annular bulge and the third-level annular bulge form a whole and are protruded out of the outer wall of the body, and the outer diameter of the third-level annular bulge is larger than that of the second-level annular bulge; a polygonal connecting part is arranged between the three-stage annular bulge and the polygonal structure, and the polygonal connecting part and the polygonal structure form a whole; a first-stage annular groove is formed between the first-stage annular bulge and the second-stage annular bulge, and a second-stage annular groove is formed between the third-stage annular bulge and the polygonal structure.
Further, the one-level annular bulge in this application be provided with the inclined plane in the pipeline inserts the direction, the bellied external diameter of one-level annular gradually increases in the pipeline inserts the direction.
Further, tertiary annular protruding be provided with the inclined plane in the pipeline direction of inserting in this application, tertiary annular protruding external diameter increases gradually in the pipeline direction of inserting.
Further, the minimum outer diameter of the third-stage annular protrusion described in the present application is the same as the maximum outer diameter of the first-stage annular protrusion, and the outer diameter of the second-stage annular protrusion remains the same in the insertion direction of the pipe and is the same as the minimum outer diameter of the third-stage annular protrusion.
Further, the outer diameters of the primary annular groove and the secondary annular groove in the application are kept unchanged in the pipe inserting direction and are both smaller than the outer diameter of the body.
Further, the polygonal structure in this application for mould plastics as an organic whole with the body, and polygonal structure's external diameter is greater than the bellied external diameter of tertiary annular.
Further, an inner limiting end face is arranged at the inlet end of the inner wall of the body, the inner wall of the body is further connected with an inner ring, a step part is machined at one end, close to the inner limiting end face, of the inner ring, and the step part and the inner wall of the body form an embedded groove for accommodating the clamping hook; the clamping hook is positioned at one end of the plug connector and extends to one side far away from the plug connector.
Further, the inner diameter of the inner ring body in the application is gradually reduced in the inserting direction, and a sealing ring with a triangular longitudinal section is arranged between the inner ring body and the plug connector.
Further, the plug connector in this application be ring body structure, the external diameter of plug connector is the same with the external diameter of body, the internal diameter of plug connector is the same with the internal diameter of body.
Furthermore, the outer wall of the plug connector is provided with a concave-convex structure which is the same as the body.
Compared with the prior art, the beneficial effects of this application are:
this application adopts multistage annular bulge and multistage recess complex structural style, can effectively increase the connection that is adapted to the cold formula that expands of crosslinked polyethylene pipeline, can be adapted to other form connecting pieces of accessible threaded connection through design polygon structure and helicitic texture in addition, improves the connection effect and the connection quality between different material pipelines, the pipe fitting.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1. a primary annular projection; 2. a primary annular groove; 3. a secondary annular bulge; 4. a third-level annular bulge; 5. a secondary annular groove; 6. a polygonal body connecting portion; 7. a polygonal structure; 8. a threaded connection end; 9. a plug-in unit; 10. an inner ring body; 11. a seal ring; 12. a hook is clamped; 13. an inner limit end surface.
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 pipeline is with changing over the connecting pipe fittings, including the body, there are 7 polygonal structures on the said body, there are concave-convex structures and threaded connection end 8 that the external screw thread forms on the body of 7 both sides of polygonal structure respectively, wherein the said concave-convex structure has annular projection 1 of the first class, annular projection 3 of the second class, annular projection 4 of the third class sequentially in the direction of insertion, wherein the annular projection 1 of the first class locates at the end of the body and projects over the body outer wall; the second-level annular bulge 3 and the third-level annular bulge 4 form a whole and protrude out of the outer wall of the body, and the outer diameter of the third-level annular bulge 4 is larger than that of the second-level annular bulge 3; a polygonal connecting part 6 is arranged between the three-stage annular bulge 4 and the polygonal structure 7, and the polygonal connecting part 6 and the polygonal structure 7 form a whole; a first-stage annular groove 2 is formed between the first-stage annular bulge 1 and the second-stage annular bulge 3, and a second-stage annular groove 5 is formed between the third-stage annular bulge 4 and the polygonal structure 7.
Example 2
A pipeline is with changing over the connecting pipe fittings, wherein said first class annular bulge 1 has inclined planes in the direction of pipeline insertion, the external diameter of the first class annular bulge 1 increases gradually in the direction of pipeline insertion; the three-stage annular protrusion 4 is provided with an inclined surface in the pipeline insertion direction, and the outer diameter of the three-stage annular protrusion 4 is gradually increased in the pipeline insertion direction; the minimum outer diameter of the third-stage annular bulge 4 is the same as the maximum outer diameter of the first-stage annular bulge 1, and the outer diameter of the second-stage annular bulge 3 is constant in the insertion direction of the pipeline and is the same as the minimum outer diameter of the third-stage annular bulge 4; the outer diameters of the primary annular groove 2 and the secondary annular groove 5 are kept unchanged in the pipeline insertion direction and are both smaller than the outer diameter of the body; the polygonal structure is integrated with the body in an injection molding mode, and the outer diameter of the polygonal structure is larger than that of the three-level annular protrusion 4. 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
A pipeline is with changing the connecting pipe fittings, wherein the said body inner wall has inner spacing terminal surface 13 at the entrance end, the inner wall of the said body connects with the inner ring body 10, the inner ring body 10 processes with the ladder department near one end of the inner spacing terminal surface 13, ladder department and body inner wall form the caulking groove to hold trip 12; the hook 12 is positioned at one end of the plug connector 9 and extends to one side far away from the plug connector 9; the inner diameter of the inner ring body 10 is gradually reduced in the inserting direction, and a sealing ring 11 with a triangular longitudinal section is arranged between the inner ring body 10 and the plug connector 9; the plug connector 9 is of a ring structure, the outer diameter of the plug connector 9 is the same as that of the body, and the inner diameter of the plug connector 9 is the same as that of the body; and the outer wall of the plug connector 9 is processed with a concave-convex structure the same as the body. 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, in the present application, the body is a tubular structure, a polygonal structure 7 is integrally formed in a region of the body near the middle position, and when the threaded connection end 8 is installed, a tool (such as a wrench) is used to rotate the pipe fitting, so that the threaded connection end 8 is rotated into the connection body and the thread is fastened. The threaded end 8 is a portion that is threaded with another connection body. In the present application, in particular, one or two polygonal structures 7 are distributed on the body, and a plurality of polygonal structures can be provided according to the actual length of the pipe. Gaps are left between adjacent polygonal structures 7.
In this application, the concavo-convex structure includes the primary annular protrusion 1, the primary annular protrusion 1 is located at the end of the pipe fitting, and the outer surface of the primary annular protrusion 1 is an inclined surface, thereby making the outer diameter of the primary annular protrusion 1 gradually increase in the insertion direction. Two end faces of the primary annular bulge 1 are flush with the end face of the polygonal structure 7. Concave-convex structure in this application mainly used cold connection of expanding formula crosslinked polyethylene pipeline, above-mentioned structure can avoid breaking away from of pipeline at the structure that forms the barb and be connected with the pipeline internal surface after cold expands.
In this application, the hookup location department of second grade annular bulge 3 and one-level annular groove 2 be provided with the chamfer structure, the external diameter of one-level annular groove 2 can be less than the external diameter of body to make and connect the pipeline in here and have better depth of connection, reach better connection stability. In the present application, the outer diameter of the secondary annular protrusion 3 may be the same as the outer diameter of the primary annular protrusion 1, or may be slightly larger than the maximum outer diameter of the primary annular protrusion 1. The second-level annular protrusion 3 extends towards the position of the third-level annular protrusion 4 in the length direction of the body until being integrated with the third-level annular protrusion 4.
In this application, tertiary annular bulge 4 protrusion in secondary annular bulge 3, tertiary annular bulge 4's minimum external diameter is higher than the biggest external diameter of secondary annular bulge 3 the same, and in the direction of insertion of pipeline, tertiary annular bulge 4's external diameter increases gradually, makes tertiary annular bulge 4's outer peripheral face form the inclined plane then. The rear end face of the three-stage annular bulge 4 is a plane parallel to the end face of the polygonal structure 7. Protruding 4 of tertiary annular can realize being connected the pipeline inner wall with the protruding 1 cooperation of one-level annular, realize the orderly joint of ladder then. The external diameter of the second-level annular groove 5 matched with the third-level annular protrusion 4 is equal to or smaller than the external diameter of the body, so that the clamping depth of the third-level annular protrusion 4 can be improved.
In this application, the body inner wall on be provided with interior spacing terminal surface 13, insert the end at the body inner wall and begin to process on the route that is close to interior spacing terminal surface 13 with the coaxial connecting hole of body inner wall, the internal diameter of connecting hole is greater than the internal diameter of body. The inner ring body 10 in interference fit with the connecting hole can be prefabricated at the connecting hole, the inner wall of the inner ring body 10 is an inclined plane, and a gap for placing the clamping hook 12 is reserved between the inner end face and the inner limiting end face 13. In this application trip 12 be located plug connector 9 one side, plug connector 9 is the same ring structure with the body external diameter, trip 12 extends to one side of plug connector 9. When the hook 12 is inserted along with the plug 9 from the insertion end of the body 1, the hook 12 is inwardly contracted by the force from the inclined surface of the inner ring 10, and when the hook 12 reaches the gap between the inner ring 10 and the inner limiting end surface 13, the deformation is restored and the hook 12 is clamped into the caulking groove formed by the step portion of the inner ring 10 and the inner wall of the body. Because a gap with a triangular longitudinal section is left between the inclined surface of the inner ring body 10 and the clamping hook 12, a sealing ring 11 can be arranged at the position to ensure the connection stability.
In the present application, a gap is left between the end surface of the plug 9 and the insertion end surface of the body, the gap gradually decreases as the plug 9 moves toward the body, and when the gap disappears, the gap between the inner ring 10 and the limit end surface 13 decreases to the extent of the clamping hook 12. And then the effective combination of the three is realized.
In this application, plug connector 9 should be located and treat that cold expands the inside pipeline that the formula is connected, enter into the pipeline when adopting cold to expand the instrument flaring, when the pipeline peg graft to the concave-convex structure gradually with the internal connection of body, then realize the effect that above-mentioned section will reach. In the present application, the plug connector 9 can also adopt a concave-convex structure, and when the plug connector is in interference fit with a pipeline, the connection stability between the plug connector and the inner wall of the pipeline can be ensured, so that the smooth proceeding of the plug process in the above paragraphs is ensured.
In this application, the body is provided with the threaded connection end 8 that the external screw thread constitutes at polygonal structure 7's opposite side, threaded connection end 8 with plastic conduit inlay metal thread pipe fitting part be connected or with metal pipeline threaded part's be connected. The polygonal structure 7 can be a regular hexagon structure or a regular octagon structure. The external thread specification size of the threaded connection end 8 relates to 3/8 '-3', and the external diameter size of the concave-convex structure relates to 10-75 mm. The integral material of the application adopts polysulfone engineering plastics, and is formed by one-time injection molding on a plastic injection molding machine, and of course, other engineering plastics such as ABS and the like, copper alloy and other metal materials can also be adopted.
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 (6)
1. The utility model provides a pipe fitting is connected with conversion, includes the body, its characterized in that: the body is provided with a polygonal structure (7), the body on two sides of the polygonal structure (7) is respectively provided with a threaded connection end (8) consisting of a concave-convex structure and an external thread, wherein the concave-convex structure is sequentially provided with a primary annular bulge (1), a secondary annular bulge (3) and a tertiary annular bulge (4) in the plugging direction, and the primary annular bulge (1) is positioned at the end part of the body and protrudes out of the outer wall of the body; the two-stage annular bulge (3) and the three-stage annular bulge (4) form a whole and protrude out of the outer wall of the body, and the outer diameter of the three-stage annular bulge (4) is larger than that of the two-stage annular bulge (3); a polygonal connecting part (6) is arranged between the three-stage annular bulge (4) and the polygonal structure (7), and the polygonal connecting part (6) and the polygonal structure (7) form a whole; form one-level annular groove (2) between one-level annular arch (1) and second grade annular arch (3), form second grade annular groove (5) between tertiary annular arch (4) and polygonal structure (7).
2. The transition joint as claimed in claim 1, wherein: the first-stage annular bulge (1) is provided with an inclined surface in the pipeline insertion direction, and the outer diameter of the first-stage annular bulge (1) is gradually increased in the pipeline insertion direction.
3. The transition joint as claimed in claim 2, wherein: the three-level annular protrusion (4) is provided with an inclined surface in the insertion direction of the pipeline, and the outer diameter of the three-level annular protrusion (4) is gradually increased in the insertion direction of the pipeline.
4. The transition joint as claimed in claim 3, wherein: the minimum outer diameter of the third-stage annular bulge (4) is the same as the maximum outer diameter of the first-stage annular bulge (1), and the outer diameter of the second-stage annular bulge (3) is kept unchanged in the insertion direction of the pipeline and is the same as the minimum outer diameter of the third-stage annular bulge (4).
5. The transition joint as claimed in claim 4, wherein: the outer diameters of the primary annular groove (2) and the secondary annular groove (5) are kept unchanged in the pipeline inserting direction and are smaller than the outer diameter of the body.
6. The transition joint as claimed in claim 5, wherein: the polygonal structure is integrated with the body in an injection molding mode, and the outer diameter of the polygonal structure is larger than that of the three-level annular bulge (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022685578.9U CN213900285U (en) | 2020-11-19 | 2020-11-19 | Conversion connecting pipe fitting for pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022685578.9U CN213900285U (en) | 2020-11-19 | 2020-11-19 | Conversion connecting pipe fitting for pipeline |
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| Publication Number | Publication Date |
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| CN213900285U true CN213900285U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022685578.9U Active CN213900285U (en) | 2020-11-19 | 2020-11-19 | Conversion connecting pipe fitting for pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377709A (en) * | 2020-11-19 | 2021-02-19 | 宏岳塑胶集团股份有限公司 | Conversion connecting pipe fitting for pipeline |
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- 2020-11-19 CN CN202022685578.9U patent/CN213900285U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377709A (en) * | 2020-11-19 | 2021-02-19 | 宏岳塑胶集团股份有限公司 | Conversion connecting pipe fitting for pipeline |
| CN112377709B (en) * | 2020-11-19 | 2022-03-29 | 宏岳塑胶集团股份有限公司 | Conversion connecting pipe fitting for pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220525 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 |