CN211398838U - Steel skeleton pipe fitting - Google Patents
Steel skeleton pipe fitting Download PDFInfo
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- CN211398838U CN211398838U CN202020073107.XU CN202020073107U CN211398838U CN 211398838 U CN211398838 U CN 211398838U CN 202020073107 U CN202020073107 U CN 202020073107U CN 211398838 U CN211398838 U CN 211398838U
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- steel skeleton
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Abstract
A steel skeleton pipe fitting comprises a main pipe body and a sealing ring; the main pipe body comprises an outer pipe blank and an inner pipe blank; the outer tube blank is sleeved outside the inner tube blank, and a steel skeleton is arranged between the joint part of the outer tube blank and the inner tube blank; the two ends of the main pipe body are respectively and fixedly connected with a sealing ring, and the wall thickness of the sealing ring is equal to the sum of the wall thicknesses of the outer pipe blank, the inner pipe blank and the steel skeleton which are fixedly connected together; the utility model has simple pipe fitting structure and convenient production; the steel skeleton is embedded after the inner wall and the outer wall of the pipe blanks with two preselected sizes are processed respectively, and then the pipe blanks are fused in a high-frequency heating mode without injection molding equipment or complex production process.
Description
The technical field is as follows:
the utility model belongs to the technical field of the pipe fitting technique and specifically relates to a steel skeleton pipe fitting that says so.
Background art:
the high-pressure steel wire pipe cannot be connected by pure polyethylene pipes due to the limitation of the characteristics of polyethylene raw materials, iron parts are mostly used in the market at present, but the problem of corrosion resistance due to the use of the iron parts cannot be effectively solved, so that the increase of a steel skeleton in the plastic pipe for increasing the pressure bearing capacity of the pipe is a key direction of a steel wire mesh pipeline connection mode; at present, part of steel skeleton pipe fitting processing manufacturers exist in the market, but the processing technology is complex, the supporting columns need to be placed inside the pipe fitting to support the steel skeleton, when the injection molding production is carried out, if the injection molding pressure and the pressure maintaining pressure are too large, the punching net is easy to deform, if the injection molding pressure and the pressure maintaining pressure are too small, air holes are easy to generate inside the pipe fitting, the compactness of the pipe fitting is insufficient, the use performance of the pipe fitting is affected, the rejection rate is high when the pipe fitting is produced, a specific mold needs to be used for production, and the price of the steel skeleton pipe fitting is higher than that of a PE pipe fitting.
The utility model has the following contents:
in order to solve the problems, the utility model overcomes the defects of the prior art and aims to provide a steel skeleton pipe fitting which has simple production process and can be connected with a pure polyethylene pipe fitting.
In order to achieve the purpose, the steel skeleton pipe fitting provided by the utility model comprises a main pipe body and a sealing ring; the main pipe body comprises an outer pipe blank and an inner pipe blank; the outer tube blank is sleeved outside the inner tube blank, and a steel skeleton is arranged between the joint part of the outer tube blank and the inner tube blank; the two ends of the main pipe body are respectively and fixedly connected with sealing rings, and the wall thickness of each sealing ring is equal to the sum of the wall thicknesses of the outer pipe blank, the inner pipe blank and the steel skeleton which are fixedly connected together.
Further, the outer tube blank, the inner tube blank and the steel skeleton are fixedly connected in a hot melting mode.
Further, the lengths of the outer tube blank, the inner tube blank and the steel skeleton are equal.
Furthermore, the difference between the inner diameter of the steel skeleton and the outer diameter of the inner tube blank and the difference between the inner diameter of the outer tube blank and the outer diameter of the steel skeleton are both 0-0.2 mm.
Furthermore, the sealing rings are also provided with binding posts and observation holes, and the binding posts and the observation holes on the two sealing rings are symmetrical.
The utility model has the advantages that: the utility model has simple pipe fitting structure and convenient production; present steel skeleton pipe fitting is the injection molding pipe fitting mostly, and need use the supporting mould of steel skeleton pipe fitting to produce, the utility model discloses a pipe fitting does not need injection moulding equipment completely, does not need complicated production technology, only need to make the back of the internal and external wall processing respectively with two kinds of pre-selected size's pipe, imbed the steel skeleton, then use high frequency heating's mode to make it fuse, after treating to carry out the back wiring processing after fully cooling, the rejection rate of steel skeleton pipe fitting has been reduced, and the same bore the same wall thickness extrude tubular product stronger for the pipe fitting bearing capacity of moulding plastics, because the injection molding has the joint line, the raw materials of moulding plastics is from the sprue to the place that final raw materials combines promptly, the joint line position bearing pressure is relatively more weak, so this processing mode not only production simple process, the bearing.
Description of the drawings:
FIG. 1 is a schematic structural view of the main tube body and the sealing ring of the present invention;
FIG. 2 is a schematic structural view of the steel skeleton of the present invention;
FIG. 3 is a schematic structural diagram of the present invention;
in the drawings: 1. the pipe comprises an outer pipe blank, 2 an inner pipe blank, 3 a steel skeleton, 4 a sealing ring, 5 a binding post, 6 and an observation hole.
The specific implementation mode is as follows:
in order to make the purpose, technical solution and advantages of the present invention clearer, the drawings of the present invention will be combined below, right to the present invention perform more detailed description.
In the description of the present invention, it should be understood that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.
In the description of the present invention, 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 invention can be understood in specific cases to those skilled in the art.
As shown in the attached drawings 1-3, a steel skeleton pipe fitting comprises a main pipe body and a sealing ring 4; the main pipe body comprises an outer pipe blank 1 and an inner pipe blank 2; the outer tube blank 1 is sleeved outside the inner tube blank 2, and a steel skeleton 3 is arranged between the joint part of the outer tube blank 1 and the inner tube blank 2; the two ends of the main pipe body are respectively and fixedly connected with a sealing ring 4, and the wall thickness of the sealing ring 4 is equal to the sum of the wall thicknesses of the outer pipe blank 1, the inner pipe blank 2 and the steel skeleton 3 which are fixedly connected together.
The outer tube blank 1, the inner tube blank 2 and the steel skeleton 3 are fixedly connected in a hot melting mode. The lengths of the outer tube blank 1, the inner tube blank 2 and the steel skeleton 3 are equal; the steel skeleton 3 is a cylindrical structure made of a punching mesh steel plate. The difference between the inner diameter of the steel skeleton 3 and the outer diameter of the inner tube blank 2 and the difference between the inner diameter of the outer tube blank 1 and the outer diameter of the steel skeleton 3 are both 0-0.2 mm. The sealing rings 4 are also provided with binding posts 5 and observation holes 6, and the binding posts 5 and the observation holes 6 on the two sealing rings 4 are symmetrical.
The production method comprises the following steps:
the production method comprises the following steps: the pipe sizes (pipe length, thickness, melting zone length and socket depth) of the steel skeleton 3, and the thickness, width and inner and outer diameter sizes of the steel skeleton 3 are designed according to national standards.
And 2, selecting the PE thick-wall tube blanks with preset sizes to respectively perform lathe machining (a preset machining allowance is reserved for the current machining due to the fact that lathe machining needs to be performed again in the later stage), respectively machining one outer tube blank 1 and one inner tube blank 2, and ensuring that the steel skeleton 3 can be embedded into the inner tube blank 1 and the outer tube blank 1 after machining and tight fit is ensured.
And 3, heating by using high-frequency heating equipment until the inner and outer tube blanks 1 are fused.
And 4, carrying out hot melting butt welding on two ends of the pipe fitting to form a sealing ring 4 with a preset caliber.
And 5, lathing, namely lathing the pipe fitting according to the national standard requirements to obtain the pipe fitting with the same size of length, outer diameter and the like.
And 6, wiring, wherein the length of the molten zone meets the national standard requirement, and the wiring terminal 5 and the observation hole 6 are required to be positioned on the sealing rings 4 at the two sides of the punching mesh steel plate.
Example 1
By way of example of implementation standard CJ/T189, dn500 x 1.6MPa steel skeleton 3 electrofusion direct machining:
And 3, heating the steel plate inside the pipe fitting by using high-frequency heating equipment until the inner wall pipe fitting and the outer wall pipe fitting are fused.
And 4, performing hot melting butt welding on two ends of the pipe fitting to form a PE sealing ring 4 with a preset caliber, wherein the length of the sealing ring 4 is 80 mm.
And 5, after the pipe fitting is fully cooled, machining the outer diameter of the pipe fitting to phi 595mm and the length to 330mm by using a lathe.
The utility model has simple pipe fitting structure and convenient production; the 3 pipe fittings of current steel skeleton are the injection molding pipe fitting mostly, and need use the supporting mould of 3 pipe fittings of steel skeleton to produce, the utility model discloses a pipe fitting does not need injection moulding equipment completely, do not need complicated production technology, only need to make the back of the internal and external wall processing respectively with two kinds of pre-selected dimensions's pipe, with 3 imbeds of steel skeleton, then use high frequency heating's mode to make it fuse, carry out back wiring processing after treating fully cooling, the rejection rate of 3 pipe fittings of steel skeleton has been reduced, and the same wall thickness of same bore extrude tubular product stronger for injection molding pipe spare bearing capacity, because the injection molding has the joint line, the raw materials of moulding plastics is from the sprue to the place that final raw materials combines, the joint line position pressure-bearing is relatively more weak, so this processing mode not only production simple process, the pressure.
Except for the technical features described in the specification, the method is known to the technical personnel in the field.
Claims (7)
1. A steel skeleton pipe fitting comprises a main pipe body and a sealing ring (4); the main pipe body is characterized by comprising an outer pipe blank (1) and an inner pipe blank (2); the outer tube blank (1) is sleeved outside the inner tube blank (2), and a steel skeleton (3) is fixedly connected between the joint part of the outer tube blank (1) and the inner tube blank (2); two ends of the main pipe body are respectively and fixedly connected with a sealing ring (4).
2. A steel skeleton pipe according to claim 1, wherein the outer tube blank (1), the inner tube blank (2) and the steel skeleton (3) are fixedly connected by heat fusion.
3. A steel skeleton pipe according to claim 1, wherein the lengths of the outer tube blank (1), the inner tube blank (2) and the steel skeleton (3) are equal.
4. A steel skeleton pipe according to claim 1, wherein the steel skeleton (3) is a cylindrical structure made of perforated expanded steel.
5. A steel skeleton pipe according to claim 1, characterized in that the difference between the inner diameter of the steel skeleton (3) and the outer diameter of the inner tube blank (2) and the difference between the inner diameter of the outer tube blank (1) and the outer diameter of the steel skeleton (3) are both 0-0.2 mm.
6. The steel skeleton pipe fitting of claim 1, wherein the sealing rings (4) are further provided with terminals (5) and observation holes (6), and the terminals (5) and the observation holes (6) on the two sealing rings (4) are symmetrical.
7. A steel skeleton pipe according to claim 1, wherein the sealing ring (4) has a wall thickness equal to the sum of the wall thicknesses of the outer tube blank (1), the inner tube blank (2) and the steel skeleton (3) which are fixedly connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020073107.XU CN211398838U (en) | 2020-01-14 | 2020-01-14 | Steel skeleton pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020073107.XU CN211398838U (en) | 2020-01-14 | 2020-01-14 | Steel skeleton pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398838U true CN211398838U (en) | 2020-09-01 |
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ID=72211481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020073107.XU Active CN211398838U (en) | 2020-01-14 | 2020-01-14 | Steel skeleton pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398838U (en) |
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2020
- 2020-01-14 CN CN202020073107.XU patent/CN211398838U/en active Active
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