CN216046025U - Connecting structure for pipelines of different materials and different specifications - Google Patents
Connecting structure for pipelines of different materials and different specifications Download PDFInfo
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- CN216046025U CN216046025U CN202122046923.9U CN202122046923U CN216046025U CN 216046025 U CN216046025 U CN 216046025U CN 202122046923 U CN202122046923 U CN 202122046923U CN 216046025 U CN216046025 U CN 216046025U
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Abstract
The utility model provides a connecting structure of pipelines with different materials and different specifications, which can realize diameter-changing transition between a first pipeline and a second pipeline with different diameters by arranging a concentric reducing connecting pipe between the first pipeline and the second pipeline, is used for offsetting internal water pressure action generated by pipeline diameter-changing through a concrete buttress and a thrust ring (the thrust ring is fixed on the outer circumference of a second straight pipe section) arranged in the concrete buttress, ensures the stability of the whole connecting structure, realizes flexible transition of pipeline materials through a wide flexible joint, and is internally provided with a rubber gasket in a sleeve of the wide flexible joint, thereby ensuring the connection sealing property between the concentric reducing connecting pipe and the second pipeline. The utility model can realize the connection of two pipelines with different materials and different pipe diameters, and has the advantages of wide application range, convenient construction, slippage resistance, good sealing effect and the like.
Description
Technical Field
The utility model belongs to the technical field of pipelines, and particularly relates to a connecting structure for pipelines made of different materials and in different specifications.
Background
At present, the pipeline connection method mainly comprises the connection of pipelines made of the same materials, such as the connection of a steel pipe and a steel pipe, the connection of a cast iron pipe and the like, the material specifications of the pipelines are the same, and the effective connection of the pipelines can be realized through standard pipe fittings. In actual engineering, pipelines of different materials and different specifications are often connected and communicated, for example, when a newly-built water supply pipe in a water supply and drainage project is connected to an existing pipe network, the newly-built water supply pipe is a DN900 steel pipe, and an interface pipe of the existing pipe network is a DN600 cast iron pipe. And such problems are increasing with the development of society.
Because two kinds of pipeline materials, specification, manufacturing standard are all inequality, hardly realize effective connection through standard pipe fitting, even connect through some nonstandard pipe fittings also have the processing loaded down with trivial details, with high costs, sealed effect is poor, application scope is narrow scheduling problem. Because the water pressure in the pipeline in the water supply engineering is higher, if the effective connection of the pipeline is not well treated, the potential safety hazard is very easy to cause.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a connecting structure of pipelines made of different materials and in different specifications, aiming at the defects in the prior art, and the connecting structure can realize effective connection between any two pipelines made of different materials and in different specifications.
Therefore, the above purpose of the utility model is realized by the following technical scheme:
the utility model provides a connection structure of different specification pipelines of different materials which characterized in that: the connecting structure comprises a concentric reducing connecting pipe, rigid joints and wide flexible joints, wherein the rigid joints and the wide flexible joints are arranged at two ends of the concentric reducing connecting pipe;
the outer circumference of the second straight pipe section is provided with a thrust ring, and the second straight pipe section is partially arranged in the concrete buttress near two sides of the thrust ring.
While adopting the technical scheme, the utility model can also adopt or combine the following technical scheme:
as a preferred technical scheme of the utility model: the wide flexible joint comprises a sleeve, the two ends of the sleeve are respectively sleeved on the outer walls of the second straight pipe section of the concentric reducing connecting pipe and the second pipeline, the two ends of the sleeve are respectively sleeved with the inner sides of the second straight pipe section of the concentric reducing connecting pipe and the second pipeline in contact, and a plurality of fixing bolts are arranged on the outer side wall of the sleeve.
As a preferred technical scheme of the utility model: the rigid joint is a welding joint or a flange joint.
As a preferred technical scheme of the utility model: and a buttress cushion layer is arranged below the concrete buttress, and the buttress cushion layer can adopt C15 plain concrete.
As a preferred technical scheme of the utility model: the outer diameter of the first straight pipe section is the same as that of the first pipeline.
As a preferred technical scheme of the utility model: the outer diameter of the second straight pipe section is within +/-10% of the outer diameter of the second pipeline.
As a preferred technical scheme of the utility model: the concrete buttress is a rectangular section along the section of the thrust ring.
The utility model provides a connecting structure of pipelines with different materials and different specifications, which can realize diameter-changing transition between a first pipeline and a second pipeline with different diameters by arranging a concentric reducing connecting pipe between the first pipeline and the second pipeline, is used for offsetting internal water pressure action generated by pipeline diameter-changing through a concrete buttress and a thrust ring (the thrust ring is fixed on the outer circumference of a second straight pipe section) arranged in the concrete buttress, ensures the stability of the whole connecting structure, realizes flexible transition of pipeline materials through a wide flexible joint, and is internally provided with a rubber gasket in a sleeve of the wide flexible joint, thereby ensuring the connection sealing property between the concentric reducing connecting pipe and the second pipeline. The utility model can realize the connection of two pipelines with different materials and different pipe diameters, and has the advantages of wide application range, convenient construction, slippage resistance, good sealing effect and the like.
Drawings
FIG. 1 is a plan view of a connection structure for pipes of different materials and different specifications according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic representation of a concentric reducing coupling tube;
FIG. 4 is an illustration of a broad flexible joint;
in the figure: 110-concentric reducing connecting pipe; 111-a first straight tube section; 112-a second straight tube section; 113-a variable diameter pipe section; 114-a thrust ring; 120-a rigid joint; 130-a wide flexible joint; 131-a sleeve; 132-a rubber gasket; 133-fixing bolts; 140-concrete buttress; 141-buttress pad layer; 210-a first conduit; 220-second conduit.
Detailed Description
The utility model is described in further detail with reference to the figures and specific embodiments.
A connecting structure of pipelines with different materials and different specifications comprises a concentric reducing connecting pipe 110, a rigid joint 120 and a wide flexible joint 130 at two ends of the concentric reducing connecting pipe 110, wherein the concentric reducing connecting pipe 110 comprises a first straight pipe section 111, a second straight pipe section 112 and a reducing pipe section 113, two ends of the reducing pipe section 113 are respectively connected with the first straight pipe section 111 and the second straight pipe section 112, the first straight pipe section 111 is connected with a first pipeline 210 through the rigid joint 120, and the second straight pipe section 112 is connected with a second pipeline 220 through the wide flexible joint 130;
the second straight pipe section and the second pipeline of the concentric reducing connecting pipe extend into the wide flexible joint by no less than 100 mm;
the length of a first straight pipe section of the concentric reducing connecting pipe is not less than 300mm, the length of a second straight pipe section of the concentric reducing connecting pipe is not less than 1300mm, and the gradient of the reducing pipe section is 1: 5;
the outer circumference of the second straight tube section 112 is provided with thrust rings 114, and the second straight tube section 112 is partially arranged inside a concrete pier 140 in the vicinity of both sides of the thrust rings 114;
the width of the thrust ring is not less than 80mm, the thickness of the thrust ring is not less than 10mm, and enough buttress arrangement space is reserved at the position of the thrust ring;
the strength grade of the concrete buttress is C25-C30, the section is rectangular, each side is wider than the pipeline by no less than 300mm, the thickness is no less than 500mm, the center of the buttress is positioned at the thrust ring, and constructional steel bars can be arranged in the buttress.
The broad flexible joint 130 includes a sleeve 131, two ends of the sleeve 131 are respectively sleeved on the outer walls of the second straight pipe section 112 of the concentric reducing connection pipe 110 and the second pipeline 220, two ends of the sleeve 131 are respectively sleeved on the inner sides of the second straight pipe section 112 of the concentric reducing connection pipe 110 and the second pipeline 220, which are in contact with each other, and a rubber gasket 132 is respectively sleeved on the outer side wall of the sleeve 131, which is provided with a plurality of fixing bolts 133.
The rigid joint 120 is a welded joint or a flanged joint.
A pier pad layer 141 is arranged below the concrete pier 140, and the pier pad layer 141 can be made of C15 plain concrete.
The outer diameter of the first straight pipe section 111 is the same as the first pipe 210; the outer diameter of the second straight tube section 112 is within ± 10% of the outer diameter of the second conduit 220.
The concrete pier 140 has a rectangular cross-section along the thrust collar 114, and the dimensions are calculated based on the water pressure and the soil pressure in the pipe.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (7)
1. The utility model provides a connection structure of different specification pipelines of different materials which characterized in that: the connecting structure comprises a concentric reducing connecting pipe, rigid joints and wide flexible joints, wherein the rigid joints and the wide flexible joints are arranged at two ends of the concentric reducing connecting pipe;
the outer circumference of the second straight pipe section is provided with a thrust ring, and concrete buttresses are partially arranged on the second straight pipe section near two sides of the thrust ring.
2. The connecting structure of pipes of different materials and different specifications as claimed in claim 1, wherein: the wide flexible joint comprises a sleeve, the two ends of the sleeve are respectively sleeved on the outer walls of the second straight pipe section of the concentric reducing connecting pipe and the second pipeline, the two ends of the sleeve are respectively sleeved with the inner sides of the second straight pipe section of the concentric reducing connecting pipe and the second pipeline in contact, and a plurality of fixing bolts are arranged on the outer side wall of the sleeve.
3. The connecting structure of pipes of different materials and different specifications as claimed in claim 1, wherein: the rigid joint is a welding joint or a flange joint.
4. The connecting structure of pipes of different materials and different specifications as claimed in claim 1, wherein: and a buttress cushion layer is arranged below the concrete buttress.
5. The connecting structure of pipes of different materials and different specifications as claimed in claim 1, wherein: the outer diameter of the first straight pipe section is the same as that of the first pipeline.
6. The connecting structure of pipes of different materials and different specifications as claimed in claim 1, wherein: the outer diameter of the second straight pipe section is within +/-10% of the outer diameter of the second pipeline.
7. The connecting structure of pipes of different materials and different specifications as claimed in claim 1, wherein: the concrete buttress is a rectangular section along the section of the thrust ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122046923.9U CN216046025U (en) | 2021-08-27 | 2021-08-27 | Connecting structure for pipelines of different materials and different specifications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122046923.9U CN216046025U (en) | 2021-08-27 | 2021-08-27 | Connecting structure for pipelines of different materials and different specifications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216046025U true CN216046025U (en) | 2022-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122046923.9U Active CN216046025U (en) | 2021-08-27 | 2021-08-27 | Connecting structure for pipelines of different materials and different specifications |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216046025U (en) |
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2021
- 2021-08-27 CN CN202122046923.9U patent/CN216046025U/en active Active
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