Impact-resistant high-strength stainless steel seamless steel pipe

Abstract

The utility model relates to the technical field of stainless steel seamless steel pipes, in particular to an impact-resistant high-strength stainless steel seamless steel pipe which comprises a steel pipe body, a reinforcing assembly is arranged in the steel pipe body and comprises a supporting ring, and the supporting ring is installed on the inner wall of the steel pipe body. A hexagonal support is fixedly connected to the inner wall of the supporting ring, a supporting frame is fixedly connected to the surface of the hexagonal support, a connecting rod is fixedly connected to the inner wall of the supporting frame, an end cover is fixedly connected to the rear end of the connecting rod, and the end, away from the end cover, of the connecting rod is sleeved with a positioning ring. The end, located on the positioning ring, of the connecting rod is in threaded connection with a fixing nut. According to the utility model, the reinforcing assembly is arranged, so that the structural reinforcing strength of the seamless steel pipe is ensured, the occupation of an inner cavity of the seamless steel pipe can be reduced, the interference on the conveying capacity of the steel pipe is reduced, and the reliability and applicability of the seamless steel pipe are further improved.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel seamless pipe technology, and in particular to a high-strength stainless steel seamless pipe with high impact resistance. Background Technology

[0002] Stainless steel seamless pipes, as a high-performance pipe material, are widely used in petrochemical, aerospace, food and medical fields. Their manufacturing process is complex, using high-quality stainless steel as raw material, and is made through processes such as piercing, hot rolling and cold rolling. The seamless pipe body ensures the overall integrity and high strength, and can meet the strict requirements of different projects for pipe specifications. It provides a reliable choice for the manufacturing of various equipment and the installation of pipelines, and effectively guarantees the quality of projects and the stable operation of systems.

[0003] Existing technologies, such as the utility model patent with publication number CN222351651U, disclose a high-strength, impact-resistant stainless steel seamless pipe. This patent uses a steel pipe body and pre-reserved grooves. Pre-reserved grooves are opened on the outer walls of both sides of the steel pipe body, and reinforcing structures are uniformly arranged on the inner side walls of the steel pipe body. This solves the problem of some steel pipes having buffer devices to increase their strength and stability. However, if the device is damaged during use, it is difficult to replace it conveniently, and the steel pipe is not easy to splice and use, which has certain limitations.

[0004] In the process of reinforcing seamless steel pipes, the structure used in seamless steel pipes, such as the one mentioned above, occupies a considerable amount of pipe cavity space. After the reinforcement operation is completed with this structure, the originally spacious inner cavity area of ​​the pipe is greatly reduced. Since the actual performance of the pipe, such as its conveying capacity, largely depends on the size of its inner cavity, once the inner cavity is reduced, it will directly cause the actual usage specifications of the pipe to change and fail to achieve the expected conveying efficiency. It may even pose a safety hazard because it cannot withstand the original pressure, affecting the reliability and applicability of seamless steel pipes in actual engineering applications. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that in the existing technology, once the inner cavity is reduced, the actual usage specifications of the pipeline will change and the expected transportation efficiency will not be achieved. It may even cause safety hazards due to the inability to withstand the original pressure, affecting the reliability and applicability of seamless steel pipes in actual engineering applications. Therefore, this utility model proposes a high-strength, impact-resistant stainless steel seamless pipe.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength, impact-resistant stainless steel seamless pipe, comprising a pipe body, a reinforcing assembly provided inside the pipe body, the reinforcing assembly including a support ring, the support ring being installed on the inner wall of the pipe body, a hexagonal bracket fixedly connected to the inner wall of the support ring, a support frame fixedly connected to the surface of the hexagonal bracket, a connecting rod fixedly connected to the inner wall of the support frame, an end cap fixedly connected to the rear end of the connecting rod, a positioning ring sleeved on the end of the connecting rod away from the end cap, and a fixing nut threadedly connected to the end of the connecting rod located at the positioning ring, the fixing nut abutting against the front surface of the positioning ring.

[0007] Preferably, there are multiple support rings, which are arranged horizontally with reference to the horizontal axis of the steel pipe body. The support rings can support and reinforce the inner wall of the steel pipe body, thereby improving the strength of the steel pipe body in the longitudinal structure.

[0008] Preferably, the end of the support frame away from the hexagonal bracket is fixedly connected to the inner wall of the support ring. The support frame can increase the structural strength between the hexagonal bracket and the support ring, thereby improving the support effect of the hexagonal bracket on the support ring.

[0009] Preferably, the end cap abuts against the rear surface of the steel pipe body, and the positioning ring abuts against the front surface of the steel pipe body. The connection between the end cap, the positioning ring, and the steel pipe body can be fitted with appropriate seals according to the actual usage environment. The end cap can be used to connect the ends of the connecting rods to ensure that multiple connecting rods can move synchronously.

[0010] Preferably, the surface of the steel pipe body is provided with a limiting component, which includes a first fixing ring, which is fixedly connected to the rear end surface of the steel pipe body. A rear collar is fixedly connected to the surface of the end cap, and a first pin is fixedly connected to the front surface of the rear collar, which is inserted into the inner wall of the first fixing ring. A front collar is fixedly connected to the surface of the positioning ring, and a second pin is fixedly connected to the rear surface of the front collar. A second fixing ring is fixedly connected to the front end surface of the steel pipe body, and the second pin is inserted into the inner wall of the second fixing ring. By inserting the first pin into the inner wall of the first fixing ring, the position of the end cap can be restricted in conjunction with the rear collar to ensure the stability of the end cap during assembly.

[0011] Preferably, the rear collar abuts against the rear surface of the fixing ring one, and the number of the pins one is multiple. The multiple pins one are arranged in a circumferential array with reference to the center of the rear collar one. The pins one and the end cap can be connected through the rear collar one to ensure that the position of the end cap can be restricted after the pins one is inserted into the fixing ring one.

[0012] Preferably, the front collar abuts against the front surface of the second fixed ring, and there are multiple pins. The multiple pins are arranged in a circular array with reference to the center of the front collar. By inserting the pins into the second fixed ring, the position of the positioning ring can be restricted in conjunction with the front collar to ensure the stability of the positioning ring during the fixing process.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up reinforcement components, while ensuring the reinforcement strength of the seamless steel pipe structure, the occupancy of the seamless steel pipe cavity can be reduced, the interference with the steel pipe's conveying capacity can be reduced, and the reliability and applicability of the seamless steel pipe can be further improved.

[0015] 2. In this utility model, by setting a limiting component, the user can initially limit the position of the reinforcing component when installing it, so as to ensure the stability of the reinforcing component during the installation process. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a high-strength, impact-resistant stainless steel seamless pipe is provided for this utility model.

[0017] Figure 2 A cross-sectional structural diagram of a high-strength, impact-resistant stainless steel seamless pipe is provided for this utility model.

[0018] Figure 3 This utility model proposes a high-strength, impact-resistant stainless steel seamless pipe. Figure 2 Schematic diagram of the structure at point A in the middle;

[0019] Figure 4 A front view of a high-strength, impact-resistant stainless steel seamless pipe is provided for this utility model.

[0020] Figure 5 A rear view structural diagram of a high-strength, impact-resistant stainless steel seamless pipe is provided for this utility model.

[0021] Figure 6 A schematic diagram of a reinforcement component structure for a high-strength, impact-resistant stainless steel seamless pipe is provided for this utility model.

[0022] Figure 7 This utility model proposes a high-strength, impact-resistant stainless steel seamless pipe. Figure 6 Schematic diagram of the structure at point B;

[0023] Figure 8 This utility model presents a schematic diagram of a limiting component structure for a high-strength, impact-resistant stainless steel seamless pipe.

[0024] Legend:

[0025] 1. Steel pipe body; 2. Reinforcing components; 21. Support ring; 22. Hexagonal bracket; 23. Support frame; 24. Connecting rod; 25. End cap; 26. Positioning ring; 27. Fixing nut; 3. Limiting components; 31. Rear collar; 32. Pin one; 33. Fixing ring one; 34. Front collar; 35. Pin two; 36. Fixing ring two. Detailed Implementation

[0026] Please see Figures 1-8 This utility model provides a technical solution: a high-strength, impact-resistant stainless steel seamless pipe, including a pipe body 1, a reinforcing component 2 inside the pipe body 1, and a limiting component 3 on the surface of the pipe body 1.

[0027] The specific settings and functions of the reinforcement component 2 and the limiting component 3 will be explained below.

[0028] In this embodiment: the reinforcement component 2 includes a support ring 21, which is installed on the inner wall of the steel pipe body 1. A hexagonal bracket 22 is fixedly connected to the inner wall of the support ring 21. A support frame 23 is fixedly connected to the surface of the hexagonal bracket 22. A connecting rod 24 is fixedly connected to the inner wall of the support frame 23. An end cap 25 is fixedly connected to the rear end of the connecting rod 24. A positioning ring 26 is sleeved on the end of the connecting rod 24 away from the end cap 25. A fixing nut 27 is threadedly connected to the end of the connecting rod 24 located at the positioning ring 26. The fixing nut 27 abuts against the front surface of the positioning ring 26.

[0029] Specifically, there are multiple support rings 21, which are arranged horizontally with reference to the horizontal axis of the steel pipe body 1. The support rings 21 can support and reinforce the inner wall of the steel pipe body 1, thereby improving the strength of the steel pipe body 1 in the longitudinal structure.

[0030] Specifically, the end of the support frame 23 away from the hexagonal bracket 22 is fixedly connected to the inner wall of the support ring 21.

[0031] In this embodiment, the support frame 23 can increase the structural strength between the hexagonal bracket 22 and the support ring 21, thereby improving the support effect of the hexagonal bracket 22 on the support ring 21.

[0032] Specifically, the end cap 25 abuts against the rear surface of the steel pipe body 1, and the positioning ring 26 abuts against the front surface of the steel pipe body 1. The connection between the end cap 25, the positioning ring 26 and the steel pipe body 1 can be fitted with appropriate seals according to the actual use environment. The end cap 25 can be used to connect the end of the connecting rod 24 to ensure that multiple connecting rods 24 can move synchronously.

[0033] In this embodiment: the limiting component 3 includes a first fixing ring 33, which is fixedly connected to the rear end surface of the steel pipe body 1; a rear collar 31 is fixedly connected to the surface of the end cap 25; a first pin 32 is fixedly connected to the front surface of the rear collar 31; the first pin 32 is inserted into the inner wall of the first fixing ring 33; a front collar 34 is fixedly connected to the surface of the positioning ring 26; a second pin 35 is fixedly connected to the rear surface of the front collar 34; and a second fixing ring 36 is fixedly connected to the front end surface of the steel pipe body 1; the second pin 35 is inserted into the inner wall of the second fixing ring 36.

[0034] In this embodiment: by inserting the pin 32 into the inner wall of the fixing ring 33, the position of the end cap 25 can be restricted in conjunction with the rear collar 31 to ensure the stability of the end cap 25 during the assembly process.

[0035] Specifically, the rear collar 31 abuts against the rear surface of the fixing ring 33. There are multiple pins 32, which are arranged in a circular array with reference to the center of the rear collar 31. The pins 32 and the end cap 25 can be connected through the rear collar 31 to ensure that the position of the end cap 25 can be restricted after the pins 32 are inserted into the fixing ring 33.

[0036] Specifically, the front collar 34 abuts against the front surface of the fixed ring 36, and there are multiple pins 35. The multiple pins 35 are arranged in a circular array with reference to the center of the front collar 34.

[0037] In this embodiment: by inserting the second pin 35 into the second fixing ring 36, the position of the positioning ring 26 can be restricted in conjunction with the front collar 34 to ensure the stability of the positioning ring 26 during the fixing process.

[0038] Working principle: When reinforcing the steel pipe body 1, the assembled support ring 21, hexagonal bracket 22 and connecting rod 24 are inserted into the steel pipe body 1 through the opening at one end of the steel pipe body 1. When the end cap 25 contacts one side end face of the steel pipe body 1, the assembler can put the positioning ring 26 on the connecting rod 24 that passes through the other end of the steel pipe body 1. When the positioning ring 26 contacts the end surface of the steel pipe body 1, the fixing nuts 27 are tightened one by one on the connecting rod 24. After completing the above operations, the support ring 21, hexagonal bracket 22 and connecting rod 24 can be fixed in the steel pipe body 1 to reinforce the steel pipe body 1 from the inside. By setting the reinforcement component 2, while ensuring the reinforcement strength of the seamless steel pipe structure, the occupation of the seamless steel pipe cavity can be reduced, the interference with the steel pipe conveying capacity can be reduced, and the reliability and applicability of the seamless steel pipe can be further improved.

[0039] In addition, when assembling the reinforcing component 2, align the pin 32 on the end cap 25 with the pre-drilled hole on the fixing ring 33. After aligning the pin 32 with the hole, push the reinforcing component 2 into the steel pipe body 1 according to the above steps. At the same time, the end cap 25 is pushed into the hole of the fixing ring 33 by the rear collar 31. After the pin 32 is inserted into the hole, the frame initially constrains the position of the end cap 25. When installing the positioning ring 26, align the pin 35 on the front collar 34 with the hole on the fixing ring 36. During the movement of the positioning ring 26, the pin 35 is pushed into the fixing ring 36 and, together with the fixing ring 36 and the connecting rod 24, restricts the position of the positioning ring 26 in the unlocked state. By setting the limiting component 3, the user can initially restrict the position of the reinforcing component 2 when installing it to ensure the stability of the reinforcing component 2 during the installation process.

Claims

1. A high-strength, impact-resistant stainless steel seamless pipe, comprising a pipe body (1), characterized in that: The steel pipe body (1) is provided with a reinforcement component (2). The reinforcement component (2) includes a support ring (21). The support ring (21) is installed on the inner wall of the steel pipe body (1). A hexagonal bracket (22) is fixedly connected to the inner wall of the support ring (21). A support frame (23) is fixedly connected to the surface of the hexagonal bracket (22). A connecting rod (24) is fixedly connected to the inner wall of the support frame (23). An end cap (25) is fixedly connected to the rear end of the connecting rod (24). A positioning ring (26) is sleeved on the end of the connecting rod (24) away from the end cap (25). A fixing nut (27) is threadedly connected to the end of the connecting rod (24) located at the positioning ring (26). The fixing nut (27) abuts against the front surface of the positioning ring (26).

2. The impact-resistant, high-strength seamless stainless steel pipe according to claim 1, characterized in that: The number of the support rings (21) is multiple, and the multiple support rings (21) are arranged horizontally with reference to the horizontal axis of the steel pipe body (1).

3. The impact-resistant, high-strength seamless stainless steel pipe according to claim 1, characterized in that: The end of the support frame (23) away from the hexagonal bracket (22) is fixedly connected to the inner wall of the support ring (21).

4. The impact-resistant, high-strength seamless stainless steel pipe according to claim 1, characterized in that: The end cap (25) abuts against the rear surface of the steel pipe body (1), and the positioning ring (26) abuts against the front surface of the steel pipe body (1).

5. The impact-resistant, high-strength seamless stainless steel pipe according to claim 1, characterized in that: The surface of the steel pipe body (1) is provided with a limiting component (3). The limiting component (3) includes a fixing ring (33), which is fixedly connected to the rear end surface of the steel pipe body (1). The surface of the end cap (25) is fixedly connected with a rear collar (31). The front surface of the rear collar (31) is fixedly connected with a pin (32), which is inserted into the inner wall of the fixing ring (33). The surface of the positioning ring (26) is fixedly connected with a front collar (34). The rear surface of the front collar (34) is fixedly connected with a pin (35). The front end surface of the steel pipe body (1) is fixedly connected with a fixing ring (36), which is inserted into the inner wall of the fixing ring (36).

6. The impact-resistant, high-strength seamless stainless steel pipe according to claim 5, characterized in that: The rear collar (31) abuts against the rear surface of the fixing ring (33), and there are multiple pins (32). The multiple pins (32) are arranged in a circular array with the center of the rear collar (31) as a reference.

7. The impact-resistant, high-strength seamless stainless steel pipe according to claim 5, characterized in that: The front collar (34) abuts against the front surface of the second fixed ring (36), and there are multiple pins (35). The multiple pins (35) are arranged in a circular array with reference to the center of the front collar (34).

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