CN217499902U - Seamless steel pipe for high-low temperature toughness structure - Google Patents
Seamless steel pipe for high-low temperature toughness structure Download PDFInfo
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- CN217499902U CN217499902U CN202220776488.7U CN202220776488U CN217499902U CN 217499902 U CN217499902 U CN 217499902U CN 202220776488 U CN202220776488 U CN 202220776488U CN 217499902 U CN217499902 U CN 217499902U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a seamless steel pipe for high and low temperature toughness structure, which comprises a first steel pipe, a second steel pipe and a connecting piece, wherein the connecting piece comprises a hollow connecting piece main body and closed circular plates connected with the two ends of the connecting piece main body through connecting rods, the two ends of the connecting piece main body are also provided with through holes, the periphery of the closed circular plates is also provided with a sealing ring, the two ends of the first steel pipe and the second steel pipe are also respectively provided with internal threads, the two ends of the connecting piece main body are provided with corresponding external threads, the connecting piece main body is respectively screwed with the end parts of the first steel pipe and the second steel pipe, the two closed circular plates are respectively inserted into the first steel pipe and the second steel pipe, the connecting piece main body is also provided with a grouting port and an exhaust port, concrete is poured into the first steel pipe and the second steel pipe in the connecting piece main body and between the two closed circular plates and the connecting piece main body, the connecting mode between the two steel pipes is firm and reliable, and the influence on the performance of the steel pipe in the connection process is small, and the coating on the outer wall of the steel pipe cannot be damaged.
Description
Technical Field
The utility model relates to a high low temperature toughness seamless steel pipe for structure.
Background
Seamless steel pipes for structures such as bridges and ocean platforms generally need to be subjected to special heat treatment to achieve ideal strength and low-temperature toughness, and the outer wall of the seamless steel pipe is provided with a complex coating in the past in order to avoid premature corrosion in a severe environment.
In the prior art, the connecting structure of the steel pipes is generally formed by punching or processing in other modes, and flanges are additionally arranged at the end parts of the steel pipes to connect the two steel pipes; this type of connection is not without doubt damaging the properties and coatings of the steel pipe and is not sufficiently strong and reliable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of above-mentioned prior art, provide a seamless steel pipe is used to high low temperature toughness structure.
The technical scheme of the utility model is that: the utility model provides a high low temperature toughness seamless steel pipe for structure, includes first steel pipe, second steel pipe and connects the connecting piece between first steel pipe and second steel pipe, the connecting piece includes hollow connecting piece main part and connects the closed plectane at connecting piece main part both ends through the connecting rod, the both ends of connecting piece main part still have the through-hole, the external diameter of closed plectane is corresponding with the internal diameter of first steel pipe and second steel pipe, the periphery of closed plectane still is equipped with the sealing washer, the both ends of first steel pipe and second steel pipe still have the internal thread respectively, the both ends of connecting piece main part have corresponding external screw thread, the connecting piece main part respectively with first steel pipe and second steel pipe tip looks spiro union, two closed plements insert respectively in first steel pipe and the second steel pipe, still be equipped with grout mouth and gas vent in the connecting piece main part, the connecting piece main part is internal still, Concrete is poured into the first steel pipe and the second steel pipe between the two closed circular plates and the connecting piece main body.
Optionally, a convex ring is arranged in the middle of the connecting piece, the convex ring is located between the first steel pipe and the second steel pipe, the grouting opening and the exhaust opening are located on the convex ring and exposed out of the joint of the first steel pipe and the second steel pipe, and plugs are further arranged on the grouting opening and the exhaust opening.
Optionally, a pipe body is connected to the grouting opening and the exhaust opening, the pipe body is exposed out of the joint of the first steel pipe and the second steel pipe, and an end cap is screwed to the outer end of the pipe body.
Specifically, the pipe body and the connecting piece main body are welded into a whole.
Furthermore, the joint of the first steel pipe and the second steel pipe is filled with sealant.
Furthermore, both ends of the connecting piece main body are respectively provided with a frustum-shaped end part, and the closed circular plate is connected with the frustum-shaped end parts through connecting rods.
Specifically, the connecting piece main part is the barrel that both ends are open form, the both ends of barrel have internal thread and external screw thread respectively, frustum form tip has the link, the link is with the tip looks spiro union of barrel.
Preferably, the number of the through holes is four, and the four through holes are arrayed at the end part of the frustum-shaped end part far away from the connector body.
Specifically, the connecting rod has one, the central point that the tip of connecting rod was kept away from the connecting piece main part to frustum form tip welding, the central point that the other end welding of connecting rod was closed the plectane is put.
Specifically, the outer diameter of the closed circular plate is smaller than the inner diameter of the steel pipe by 3mm, and the thickness of the sealing ring is 5 mm.
The utility model has the advantages that: in the utility model, the unique structure of the connecting piece can inject concrete into the connecting piece after the connecting piece is connected with the two steel pipes, and the concrete overflows into the steel pipes between the closed circular plate and the connecting piece, and the connecting piece is matched after the concrete is solidified to ensure that the two steel pipes are firmly and reliably connected, and the connecting piece has the advantage of low cost; in addition, the connection mode of the structure enables the interior of the steel pipe to be thoroughly closed, corrosion to the interior of the steel pipe can be effectively avoided, and finally, the outer walls of the two steel pipes connected through the connection mode are smooth, extra punching or other processing is not needed, and damage to coatings on the outer walls of the steel pipes can be prevented.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of the joint of the first steel pipe and the second steel pipe of the present invention;
FIG. 3 is a schematic structural diagram of the connector of the present invention;
fig. 4 is a top view of the connector of the present invention with the closed circular plate removed.
In the figure: the connecting device comprises a first steel pipe 1, a second steel pipe 2, a connecting piece 3, a connecting piece main body 4, a connecting rod 5, a closed circular plate 6, a through hole 7, a grouting opening 8, an exhaust opening 9, concrete 10, a pipe body 11, a frustum-shaped end part 12 and a connecting end 13.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
As shown in fig. 1, a seamless steel pipe for a high and low temperature toughness structure comprises a first steel pipe 1, a second steel pipe 2 and a connecting piece 3 connected between the first steel pipe 1 and the second steel pipe 2;
referring to fig. 1 and 2, the connecting member 3 includes a hollow connecting member body 4 and closed circular plates 6 connected to both ends of the connecting member body 4 by connecting rods 5, the two ends of the connecting piece main body 4 are also provided with through holes 7, the outer diameter of the closed circular plate 6 corresponds to the inner diameter of the first steel pipe 1 and the second steel pipe 2, the periphery of the closed circular plate 6 is also provided with a sealing ring, two ends of the first steel pipe 1 and the second steel pipe 2 are respectively provided with an internal thread, the two ends of the connecting piece main body 4 are provided with corresponding external threads, the connecting piece main body 4 is respectively screwed with the end parts of the first steel pipe 1 and the second steel pipe 2, the two closed circular plates 6 are respectively inserted into the first steel pipe 1 and the second steel pipe 2, the connecting piece main body 4 is also provided with a grouting opening 8 and an exhaust opening 9, and concrete 10 is poured into the connecting piece main body 4, the first steel pipe 1 and the second steel pipe 2 between the two closed circular plates 6 and the connecting piece main body 4;
in the structure, the unique structure of the connecting piece 3 enables the connecting piece to be connected with the two steel pipes and then to be filled with concrete 10, the concrete 10 overflows to the inside of the steel pipe between the closed circular plate 6 and the connecting piece 3, and the concrete 10 is solidified and then matched with the connecting piece 3 to enable the connection of the two steel pipes to be firm and reliable, and the connecting piece has the advantage of low cost; in addition, the connection mode of the structure ensures that the interior of the steel pipe is completely sealed, the corrosion to the interior of the steel pipe can be effectively avoided, and finally, the outer walls of the two steel pipes connected by the mode are smooth, so that extra punching or other processing is not needed, and the damage to the coating on the outer wall of the steel pipe can be prevented;
in another embodiment, as shown in fig. 1, a convex ring is arranged in the middle of the connecting member 3, the convex ring is located between the first steel pipe 1 and the second steel pipe 2, the grouting opening 8 and the exhaust opening 9 are located on the convex ring and exposed out of the connection between the first steel pipe 1 and the second steel pipe 2, and plugs are further arranged on the grouting opening 8 and the exhaust opening 9;
in another embodiment, as shown in fig. 2, in order to further reduce the material consumption of the connecting member 3 and the manufacturing cost, a pipe body 11 is connected to the grouting opening 8 and the exhaust opening 9, the pipe body 11 is exposed at the joint of the first steel pipe 1 and the second steel pipe 2, and an end cap is screwed to the outer end of the pipe body 11;
specifically, the pipe body 11 and the connecting piece main body 4 are welded into a whole;
further, sealant is filled at the joint of the first steel pipe 1 and the second steel pipe 2;
in another embodiment, as shown in fig. 2 and 3, both ends of the connector body 4 are respectively provided with a frustum-shaped end portion 12, and the closed circular plate 6 is connected with the frustum-shaped end portion 12 through a connecting rod 5; the structure is arranged for increasing the contact area between the concrete 10 and the outer part of the connecting piece 3 and the inner wall of the steel pipe and increasing the connection reliability between the connecting piece 3 and the steel pipe;
in another embodiment, as shown in fig. 3, in order to simplify the manufacture and assembly of the connector 3, the connector body 4 is a cylinder body with two open ends, the two ends of the cylinder body are respectively provided with an internal thread and an external thread, the frustum-shaped end 12 is provided with a connecting end 13, and the connecting end 13 is screwed with the end of the cylinder body;
in another embodiment, as shown in fig. 4, there are four through holes 7, and four through holes 7 are arrayed at the frustum-shaped end 12 away from the end of the connector body 4;
in another embodiment, as shown in fig. 4, there is one connecting rod 5, one end of the connecting rod 5 is welded at the central position of the end of the frustum-shaped end part 12 far away from the connecting piece main body 4, and the other end of the connecting rod 5 is welded at the central position of the closed circular plate 6;
in another embodiment, as shown in fig. 3, the outer diameter of the closed circular plate 6 is less than 3mm of the inner diameter of the steel pipe, and the thickness of the sealing ring is 5mm to ensure that the closed circular plate 6 can be inserted into the steel pipe and close the inside of the steel pipe.
Claims (10)
1. The seamless steel pipe for the high-low temperature toughness structure comprises a first steel pipe (1), a second steel pipe (2) and a connecting piece (3) connected between the first steel pipe (1) and the second steel pipe (2), and is characterized in that the connecting piece (3) comprises a hollow connecting piece main body (4) and sealing circular plates (6) connected to two ends of the connecting piece main body (4) through connecting rods (5), through holes (7) are further formed in two ends of the connecting piece main body (4), the outer diameter of each sealing circular plate (6) corresponds to the inner diameter of the first steel pipe (1) and the inner diameter of the second steel pipe (2), sealing rings are further arranged on the periphery of each sealing circular plate (6), internal threads are further formed in two ends of the first steel pipe (1) and the second steel pipe (2) respectively, corresponding external threads are formed in two ends of the connecting piece main body (4), the connecting piece main body (4) is in threaded connection with the end portions of the first steel pipe (1) and the second steel pipe (2) respectively, two seal circular plate (6) insert respectively in first steel pipe (1) and second steel pipe (2), still be equipped with grout mouth (8) and gas vent (9) on connecting piece main part (4), all pour into concrete (10) in first steel pipe (1) and the second steel pipe (2) between connecting piece main part (4), two seal circular plate (6) and connecting piece main part (4).
2. The seamless steel tube for the high and low temperature toughness structure as claimed in claim 1, wherein a convex ring is arranged in the middle of the connecting piece (3), the convex ring is positioned between the first steel tube (1) and the second steel tube (2), the grouting opening (8) and the exhaust opening (9) are positioned on the convex ring and exposed out of the joint of the first steel tube (1) and the second steel tube (2), and plugs are further arranged on the grouting opening (8) and the exhaust opening (9).
3. The seamless steel pipe for the high and low temperature toughness structure as claimed in claim 1, wherein a pipe body (11) is connected to the grouting opening (8) and the exhaust opening (9), the pipe body (11) is exposed out of the joint of the first steel pipe (1) and the second steel pipe (2), and an end cap is screwed to the outer end of the pipe body (11).
4. A structural seamless steel pipe having high and low temperature toughness according to claim 3, wherein said pipe body (11) and said connector body (4) are welded together.
5. The seamless steel pipe for the high and low temperature toughness structure as claimed in claim 1, wherein the joint of the first steel pipe (1) and the second steel pipe (2) is further filled with sealant.
6. The seamless steel pipe for high and low temperature toughness structure as claimed in claim 1, wherein both ends of the connecting member body (4) are provided with a frustum-shaped end portion (12), respectively, and the closed circular plate (6) is connected to the frustum-shaped end portion (12) through the connecting rod (5).
7. The seamless steel pipe for high and low temperature toughness structure as claimed in claim 6, wherein said connector body (4) is a cylindrical body having both ends opened, said cylindrical body having both ends provided with internal and external threads, respectively, said frustum-shaped end portion (12) having a connection end (13), said connection end (13) being threadedly engaged with the end of the cylindrical body.
8. A high and low temperature toughness structural seamless steel pipe as claimed in claim 7, wherein said through holes (7) are four, and four through holes (7) are arrayed at the end of the frustum-shaped end portion (12) away from the connecting member main body (4).
9. The seamless steel pipe for high and low temperature toughness structure as claimed in claim 8, wherein there is one connecting rod (5), one end of said connecting rod (5) is welded to the center of the end of the frustum-shaped end portion (12) away from the connecting member body (4), and the other end of said connecting rod (5) is welded to the center of the closed circular plate (6).
10. The seamless steel pipe for high and low temperature toughness structure as claimed in claim 1, wherein the outer diameter of said closed circular plate (6) is less than 3mm of the inner diameter of the steel pipe, and the thickness of said seal ring is 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220776488.7U CN217499902U (en) | 2022-04-06 | 2022-04-06 | Seamless steel pipe for high-low temperature toughness structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220776488.7U CN217499902U (en) | 2022-04-06 | 2022-04-06 | Seamless steel pipe for high-low temperature toughness structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217499902U true CN217499902U (en) | 2022-09-27 |
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ID=83346929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220776488.7U Active CN217499902U (en) | 2022-04-06 | 2022-04-06 | Seamless steel pipe for high-low temperature toughness structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217499902U (en) |
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2022
- 2022-04-06 CN CN202220776488.7U patent/CN217499902U/en active Active
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