CN217603611U

CN217603611U - High-strength steel-plastic conversion structure

Info

Publication number: CN217603611U
Application number: CN202221157225.4U
Authority: CN
Inventors: 杨洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-10-18
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a conversion structure is moulded to high strength steel belongs to the pipe connection field. The utility model discloses a conversion structure is moulded to high strength steel, including the plastic layer to and connect at compound electric smelting section of integrative steel-plastic and steel-plastic composite steel pipe section through the plastic envelope of full cover plastic layer, it has the steel inside lining still to plastically pack in the compound electric smelting section of steel-plastic of cover plastic layer, improves the radial and axial bearing capacity of compound electric smelting section of steel-plastic through the synergism of steel inside lining, and compound electric smelting section and steel-plastic composite steel pipe section are moulded to steel-plastic and organic combination has been solved current steel-plastic crossover sub electric smelting fracture or fracture, or the combination department between whole steelwork and the plastic layer leads to sealed not tight problem of damage even easily because of the environmental impact.

Description

High-strength steel-plastic conversion structure

Technical Field

The utility model belongs to the pipe connection field, more specifically say, relate to a conversion structure is moulded to high strength steel.

Background

At present, in the field of fluid transportation such as gas, tap water and the like, steel pipes or plastic pipes are generally adopted, wherein buried medium and low pressure pipelines generally adopt plastic pipes, and overground part medium and low pressure pipelines generally adopt steel pipes; therefore, when the buried plastic pipeline is connected with the steel pipeline on the ground, a high-strength steel-plastic conversion structure is adopted.

The existing steel-plastic conversion is to manufacture a steel-plastic connector in a steel model with a certain shape in an injection molding mode, but the combination degree between a steel part and plastic is gradually weakened due to the influence of environmental expansion caused by heat and contraction caused by cold all the year round, and the steel part and the plastic generate displacement to destroy the sealing property of a joint.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

In view of the combination between current steel-plastic conversion structure steelwork and the plastics leads to sealed not tight problem easily because of environmental impact, the utility model provides a conversion structure is moulded to high strength steel. The utility model discloses a set up the steel inside lining, make the steel inside lining bear external force in coordination with the plastic layer, reach the radial and axial bearing capacity's of improving steel-plastic composite electric smelting section purpose.

2. Technical scheme

In order to solve the problem, the utility model adopts the following technical proposal.

The utility model provides a conversion structure is moulded to high strength steel, includes the plastic layer to and connect at compound electric smelting section of integrative steel-plastic and compound steel pipe section are moulded to steel through the plastic envelope of full cover plastic layer, it has the steel inside lining still to plastically pack in the compound electric smelting section of steel-plastic of cover plastic layer, and the synergism through the steel inside lining improves the radial and axial bearing capacity of compound electric smelting section is moulded to steel, moulds compound electric smelting section and steel-plastic compound steel pipe section organic combination with steel, has solved present steel-plastic conversion electric smelting fracture or fracture, or the junction between whole steelwork and the plastic layer leads to sealed not tight or the problem of destruction because of environmental impact easily.

Furthermore, the steel-plastic composite steel pipe section is a plastic-packaged steel pipe or a flange pipe, and the flange pipe is a steel pipe with a flange; the steel lining and the steel pipe or the flange pipe are integrally formed in a stamping (or casting) mode, or the inner end of the steel lining and the inner end of the steel pipe or the flange pipe are fixedly connected together in a fixed connection mode such as welding, bolt or screw thread connection and the like, so that the combination degree between the whole steel part and the plastic layer is enhanced.

Furthermore, pipe threads are arranged in the position, close to the pipe opening, of the steel pipe, and the metal pipeline connected with the external threads is convenient to connect.

Furthermore, the shape of the steel lining is a ring column shape or a semi-ring column shape with a reserved gap, so that the strength of the whole steel structure can be improved.

Furthermore, one end of the steel lining ring close to the pipe orifice is an inward-folded end, so that the axial bonding strength is improved.

Furthermore, the quantity of breach is unanimous with the quantity of electric smelting terminal, and the breach is convenient for electric smelting terminal and the plastic layer in the steel inside lining to link as an organic whole, and does not lose the rigidity of steel inside lining.

Furthermore, the inner wall of the steel-plastic composite electric melting section is in a step shape with a reserved annular mounting table, so that the plastic inserting pipe can be conveniently inserted.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

1) The utility model discloses a conversion structure is moulded to high strength steel, steel lining and steel mould the steel pipe (or the flange nozzle stub) of compound steel pipe section through punching press (or casting) mode integrated into one piece, or connect through the mode of connecting such as welding, or bolt, or screw thread, improve the radial and axial bearing capacity of electric smelting section. The steel-plastic composite electric melting section is organically combined with the steel-plastic composite steel pipe section, so that the problem that the existing steel-plastic conversion joint is subjected to electric melting or the joint between a steel part and plastic of the steel-plastic conversion joint is easily unsealed or even damaged due to environmental influence is solved;

2) The high-strength steel-plastic conversion structure of the utility model has the advantages that when the plastic layer of the electric melting section is acted by a radial external force, the steel lining can play the rigidity role, effectively support electric melting, avoid the middle fracture of electric melting, or avoid the fracture between the steel-plastic composite steel pipe section and the steel-plastic composite electric melting section; when the plastic layer connected with the electric melting section is stressed axially and pulled outwards, the pulling force is transmitted to the steel lining through the plastic layer on the inner side of the electric melting section, and the steel lining transmits the axial pulling force to the steel pipe section steel pipe connected with the steel pipe section steel pipe, so that the displacement between the plastic layer on the outer side of the steel pipe and the steel pipe can be effectively avoided, and the problem of sealing tightness and even damage is caused.

Drawings

FIG. 1 is a schematic cross-sectional view of a high-strength steel-plastic conversion structure of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic cross-sectional view of the high-strength steel-plastic conversion structure of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a cross-sectional view taken along line B-B of fig. 3.

In the figure: 1. a steel-plastic composite electric melting section; 2. a steel-plastic composite steel pipe section; 3. a plastic layer; 11. electric melting binding posts; 12. a steel lining; 13. an installation table; 21. a steel pipe; 22. a flange pipe; 121. an inward folded end; 122. a notch; 211. pipe threads.

Detailed Description

The present invention will be further described with reference to the following detailed description and accompanying drawings.

Example 1

This embodiment provides a high strength steel is moulded transform structure, combines that fig. 1 to 5 are shown, including plastic layer 3 to and connect at compound electric smelting section 1 of integrative steel-plastic and steel-plastic composite steel pipe section 2 through 3 plastic sealings of all standing plastic layer, it has steel inside lining 12 still to have the plastic envelope in the compound electric smelting section 1 of steel-plastic of covering plastic layer 3. In general, the steel-plastic composite steel pipe section 2 is a plastic-sealed steel pipe 21 shown in fig. 3 or a flange pipe 22 shown in fig. 1, and the flange pipe 22 is a steel pipe with a flange; the steel lining 12 is integrally formed with the steel pipe 21 or the flange pipe 22 by stamping (or casting), or is connected together by welding, bolts or screws, etc. to strengthen the bonding degree between the whole steel part and the plastic layer 3.

In specific use, the radial and axial bearing capacity of the steel-plastic composite electric melting section 1 is improved through the synergistic effect of the steel lining 12, the steel-plastic composite electric melting section 1 and the steel-plastic composite steel pipe section 2 are organically combined, and the problems that the existing steel-plastic conversion joint is cracked or broken by electric melting, or the joint between the whole steel product and the plastic layer 3 is easily sealed or even damaged due to environmental influence are solved.

When the plastic layer 3 of the electric melting section is acted by a radial external force, the steel lining can play a role of rigidity, so that electric melting is effectively supported, the breakage in the middle of electric melting is avoided, or the breakage between the steel-plastic composite steel pipe section 2 and the steel-plastic composite electric melting section 1 is avoided; when the plastic layer 3 connected with the electric melting section is subjected to axial force and is pulled outwards, the pulling force is transmitted to the steel lining 12 through the plastic layer 3 on the inner side of the electric melting section, the steel lining 12 transmits the axial pulling force to the steel pipe 21 or the flange 22 of the steel-plastic composite steel pipe section 2 connected with the steel lining, and the problem that the steel pipe 21 or the flange 22 is not sealed tightly or even damaged due to the fact that the plastic layer 3 on the outer side of the steel pipe 21 or the flange 22 is displaced from the steel pipe 21 or the flange 22 can be effectively avoided.

Example 2

The embodiment provides a high-strength steel-plastic conversion structure, which is further improved on the basis of the embodiment 1, and as shown in fig. 3, pipe threads 211 are arranged in a position, close to a pipe orifice, of a steel pipe 21, so that the connection of a net pipe connected with an external wire is facilitated. As shown in fig. 2 and 3, the steel liner 12 is shaped as a ring or semi-ring with a gap 122, which improves the strength of the entire steel structure. As shown in fig. 1 and 3, the steel liner 12 has an inward folded end 121 at the end adjacent to the nozzle to improve the axial bonding strength. The notches 122 facilitate the integration of the electric fuse wire stud 11 with the plastic layer in the steel lining 12 without losing the rigidity of the steel lining 12. As shown in fig. 1 and 3, the inner wall of the steel-plastic composite electric melting section 1 is in a step shape with a reserved annular mounting platform 13, so that a plastic inserting pipe can be conveniently inserted.

The utility model discloses the example is only right the preferred embodiment of the utility model describes, and is not right the utility model discloses think about and the scope is injectd, not deviating from the utility model discloses under the prerequisite of design thought, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims

1. The utility model provides a convertible structure is moulded to high strength steel, includes plastic layer (3) to and connect at compound electric smelting section (1) of steel-plastic composite and steel-plastic composite steel pipe section (2) of an organic whole through all standing plastic layer (3) plastic envelope, its characterized in that: and a steel lining (12) is also plastically packaged in the steel-plastic composite electric melting section (1) of the covering plastic layer (3).

2. The high-strength steel-plastic conversion structure according to claim 1, wherein: the steel-plastic composite steel pipe section (2) is a plastic-sealed steel pipe (21) or a flange pipe (22); the steel lining (12) and the steel pipe (21) or the flange pipe (22) are fixedly connected in an integrated forming mode through stamping or casting.

3. The high-strength steel-plastic conversion structure according to claim 2, wherein: pipe threads (211) are arranged in the position, close to the pipe opening, of the steel pipe (21).

4. The high-strength steel-plastic conversion structure according to any one of claims 1 to 3, characterized in that: the shape of the steel lining (12) is a ring column shape or a semi-ring column shape with a reserved gap (122).

5. The high-strength steel-plastic conversion structure according to claim 4, wherein: one end of the steel lining (12) which is annularly close to the pipe orifice is an inward-folded end (121).

6. The high-strength steel-plastic conversion structure according to claim 4, wherein: the inner wall of the steel-plastic composite electric melting section (1) is in a step shape with a reserved annular mounting table (13).