CN214579385U

CN214579385U - Special pipe jacking pipe material for welding-free sewage discharge steel pipe

Info

Publication number: CN214579385U
Application number: CN202120942789.8U
Authority: CN
Inventors: 李齐军; 杨威; 李伟; 胡智雄
Original assignee: Hunan Shengtong Xinmao Environmental Technology Co ltd
Current assignee: Hunan Shengtong Xinmao Environmental Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-02
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses an exempt from special push pipe tubular product of welding blowdown steel pipe, link the bellmouth including foundry goods plug, steel pipe tubular product and plastics pipe shaft, the upper end of steel pipe tubular product and the lower extreme disjunctor casting of foundry goods plug, the outside cladding of steel pipe tubular product has plastics pipe shaft to link the bellmouth, the upper end tip of foundry goods plug cup joints in adjacent plastics pipe shaft and links the lower extreme and the interference fit of bellmouth, makes a plurality of the installation between the utility model discloses it is simple and convenient.

Description

Special pipe jacking pipe material for welding-free sewage discharge steel pipe

Technical Field

The utility model belongs to the technical field of the tubular product, especially, relate to a special push pipe tubular product of welding-free blowdown steel pipe.

Background

Compared commonly used has steel pipe and plastic tubing in the current pipeline, and the steel pipe can adapt to various geological conditions, no matter can all lay in places such as land, rivers, lakes, ocean, and the pipeline basic processing requires lowly, the suitability is strong, designability is strong, because steel pipe radial strength, elastic modulus are higher, can be according to the interior water pressure and the external load condition of crown of pipe that bear, through rigidity, intensity and the stable calculation to the steel pipe, confirms pipe diameter, tubular and pipe wall thickness. The pipeline fittings have high industrial standard degree, non-standard products can be designed and manufactured according to actual needs, and the processing and the manufacturing are flexible and convenient; the plastic pipeline has the advantages of energy conservation, material saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall, no scaling, simple and convenient construction and maintenance, long service life and the like, and is widely applied to the building industry, municipal administration, industry and agriculture fields such as building water supply and drainage, urban and rural water supply and drainage, urban gas, electric power and optical cable sheaths, industrial fluid conveying, agricultural irrigation and the like.

The steel pipe usually adopts flange joint and welding, need select corresponding welding flux and welding wire according to the mechanical properties of steel pipe tubular product during the welding, different welding methods need to be adopted to different steel pipe wall thicknesses, the intensity design value of welding seam also should be confirmed according to welding seam quality grade, need fix two pipelines, pipe fittings or equipment on a ring flange respectively earlier during flange joint, then add the flange pad between two ring flanges, at last with the bolt with two ring flanges taut make its inseparable combination, also need select the ring flange of different thickness, the flange pad of different materials, the bolt of different size, quantity according to the pressure that tubular product bore equally, no matter welding or flange joint whole process are comparatively loaded down with trivial details.

Plastic pipes have low compressive and compressive strength, so they can only be used for pipes with low pressure and small diameter, the mechanical properties are inferior to those of steel pipes, and the safety interval is required during the construction process, and the pipes cannot be exposed to the sun to prevent aging.

Therefore, in order to ensure that the pipeline has the strength of the steel pipe and the corrosion resistance of the plastic pipe at the same time and ensure that the process of installing and connecting the pipeline is not complex, the special pipe jacking for the welding-free blowdown steel pipe is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the current problem, the utility model provides a exempt from special push pipe tubular product of welding blowdown steel pipe, link the bellmouth including foundry goods plug and, steel pipe tubular product and plastics pipe shaft, the upper end of steel pipe tubular product and the lower extreme disjunctor casting of foundry goods plug, the outside cladding of steel pipe tubular product is equipped with plastics pipe shaft and links the bellmouth, the upper end tip of foundry goods plug cup joints in the lower extreme that adjacent tubular product plastics pipe shaft links the bellmouth and links the lower extreme interference fit of bellmouth with adjacent tubular product plastics pipe shaft.

Preferably, the casting plug is made of a nodular cast iron pipe.

Preferably, the casting plug is made by pouring nodular cast iron in a molten state on the mold and the steel pipe.

Preferably, the casting plug is provided with a backstop tooth.

Preferably, the connecting socket of the plastic pipe body is a PE plastic pipe.

Preferably, the upper end part of the casting plug is sleeved at the lower end of the steel pipe of the adjacent pipe and is positioned between the steel pipe of the adjacent pipe and the plastic pipe body connecting bell mouth.

Preferably, the steel pipe is a steel pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a set up the foundry goods plug in the upper end of steel pipe tubular product, set up plastics pipe shaft at the outside cladding of steel pipe tubular product and link the bellmouth, the upper end tip of foundry goods plug cup joints in adjacent plastics pipe shaft and links the lower extreme of bellmouth and interference fit with it, and the above setting is feasible the utility model discloses between the erection joint simple and convenient.

2. The nodular cast iron pipe is used as the casting plug, so that the two pipes are connected simply and conveniently, and certain rotation angle and displacement are allowed to exist between the two pipes, so that the connected pipes have good shock resistance and sealing property.

3. The nodular cast iron in a molten state is poured on the mold and the steel pipe, and the casting plug is formed after the nodular cast iron is cooled, so that the casting plug and the steel pipe can be fixedly connected without other media.

4. Through set up the stopping tooth on the foundry goods plug for the connection of foundry goods plug and inoxidizing coating is more firm.

5. The PE plastic pipe is selected as the plastic pipe body connecting socket, so that the protective layer has corrosion resistance.

6. The upper end part of the casting plug is sleeved with the lower end part of the adjacent pipe steel pipe, so that the adjacent pipes are connected more tightly.

7. By adopting the steel pipe as the steel pipe, the pipe has good strength, and the quality of the whole pipe can be improved.

Drawings

The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection between two pipes according to the present invention;

FIG. 3 is a schematic view of the connection between two pipes according to the present invention;

the reference numerals in the figures denote: 10. a steel pipe material; 20. a casting plug; 30. the plastic pipe body is connected with the bell mouth.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict. Taking fig. 1 as an example, the vertical page is up and the vertical page is down.

As shown in fig. 1 and fig. 2, a special push pipe material of welding-free blowdown steel pipe, including foundry goods plug 20 and steel pipe tubular product 10, the upper end of steel pipe tubular product 10 and the lower extreme disjunctor casting of foundry goods plug 20, the equal cladding in the outside of steel pipe tubular product 10 is equipped with plastics pipe shaft and links socket 30, the upper end butt of plastics pipe shaft and link socket 30 is at the lower terminal surface of affiliated foundry goods plug 20, the upper end tip of foundry goods plug 20 cup joints in the lower extreme interference fit of adjacent plastics pipe shaft and link socket 30 and the lower extreme interference fit of adjacent plastics pipe shaft and link socket 30, and the above setting makes the utility model discloses between the erection joint is simple and convenient.

In this embodiment, the casting plug 20 is a nodular cast iron pipe, and the nodular cast iron pipe is used as the casting plug 20, so that the connection between the two pipes is simple and convenient, and a certain rotation angle and displacement are allowed between the two pipes, so that the connected pipes have good shock resistance and sealing performance.

In this embodiment, the casting plug 20 is made by casting nodular cast iron in a molten state on the mold and the steel pipe 10, casting the nodular cast iron in the molten state on the mold and the steel pipe 10, and forming the casting plug 20 after the nodular cast iron is cooled, so that the casting plug 20 and the steel pipe 10 can be fixedly connected without other media.

In this embodiment, the casting plug 20 is provided with retaining teeth, and the casting plug 20 is provided with the retaining teeth, so that the connection between the casting plug 20 and the lower end of the plastic pipe body connecting socket 30 is more stable.

In this embodiment, the plastic pipe body connecting socket 30 is a PE (PE, which is an acronym of Polyethylene (generally, the application range of the PE pipe material water supply steel pipe material is a temperature lower than 40 ℃, and cannot be used for a hot water conveying steel pipe material), and the PE pipe material is a thermoplastic resin with high crystallinity and non-polarity) plastic pipe, and the PE plastic pipe is uniformly coated on the steel pipe material 10 to form the uniform plastic pipe body connecting socket 30, so that the pipe material has corrosion resistance, and the steel pipe 10 inside the pipe material cannot be corroded by external substances.

In this embodiment, the upper end of the casting plug 20 is sleeved on the lower end of the steel pipe 10 of the adjacent pipe and is located between the steel pipe 10 of the adjacent pipe and the plastic pipe connection bell 30, and the lower end of the plastic pipe connection bell 30 is longer than the lower end of the steel pipe 10, so that the upper end of the casting plug 20 is sleeved on the lower end of the steel pipe 10 of the adjacent pipe and can be completely covered by the adjacent plastic pipe connection bell 30, and the casting plug 20 at the matching position of the two pipes can be protected by the plastic pipe connection bell 30.

In this embodiment, the steel pipe 10 is a steel pipe, and the steel pipe is used as a main pipe material, so that the pipe has good strength.

In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore should not be construed as limiting the scope of the invention.

In conclusion, although the present invention has been described with reference to the preferred embodiments, it should be noted that, although various changes and modifications can be made by those skilled in the art, unless such changes and modifications depart from the scope of the present invention, they should be construed as being included therein.

Claims

1. The utility model provides a exempt from special push pipe tubular product of welding blowdown steel pipe which characterized in that: the casting device comprises a casting plug (20) and a steel pipe (10), wherein the upper end of the steel pipe (10) is integrally cast with the lower end of the casting plug (20), a plastic pipe body connecting bell mouth (30) is coated on the outer side of the steel pipe (10), and the upper end of the casting plug (20) is sleeved at the lower end of the adjacent pipe plastic pipe body connecting bell mouth (30) and is in interference fit with the lower end of the adjacent pipe plastic pipe body connecting bell mouth (30).

2. The welding-free special pipe jacking pipe for the blowdown steel pipe as claimed in claim 1, wherein: the casting plug (20) is made of nodular cast iron.

3. The welding-free special pipe jacking pipe for the blowdown steel pipe as claimed in claim 2, wherein: the casting plug (20) is made by pouring nodular cast iron in a molten state on the die and the steel pipe (10).

4. The welding-free special pipe jacking pipe for the blowdown steel pipe as claimed in claim 1, wherein: and the casting plug (20) is provided with retaining teeth.

5. The welding-free special pipe jacking pipe for the blowdown steel pipe as claimed in claim 1, wherein: the plastic pipe body connecting bell mouth (30) is a PE plastic pipe.

6. The welding-free special pipe jacking pipe for the blowdown steel pipe as claimed in claim 1, wherein: the upper end part of the casting plug (20) is sleeved at the lower end of the steel pipe (10) of the adjacent pipe and is positioned between the steel pipe (10) of the adjacent pipe and the plastic pipe body connecting bell (30).

7. The welding-free special pipe jacking pipe for the blowdown steel pipe as claimed in claim 1, wherein: the steel pipe (10) is a steel pipe.