Multilayer composite seamless steel pipe structure

Abstract

The utility model relates to a seamless steel pipe technical field especially is a kind of multilayer composite explosion-proof seamless steel pipe structure, including seamless steel pipe, fixed ring, rotating flange, one end of the seamless steel pipe is fixedly connected with fixed ring, the outer circle surface of having fixed ring is rotatably provided with rotating flange, the surface of the seamless steel pipe is provided with multiple limit blocks, connecting component, the seamless steel pipe is slidably connected with moving assembly by multiple limit blocks, the seamless steel pipe is detachably connected with moving assembly by connecting component;Push moving assembly, the sealing ring of sealing assembly is engaged by annular protrusion and ring groove, tightly fit rotating connection, form efficient reliable seal, effectively prevent medium leakage, guarantee structural safety, tighten the nut of connecting component, extrude locking to installation ring, not only make sealing assembly and rotating connection tightly fit, but also form firm locking to rotating flange, prevent its unnecessary rotation, enhance overall structural stability and reliability.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe technology, and in particular to a multi-layer composite explosion-proof seamless steel pipe structure. Background Technology

[0002] Multi-layer composite explosion-proof seamless steel pipe is a special type of pipe that combines the structural strength of seamless steel pipe with the protective performance of multi-layer composite materials. Through the coordinated design of the inner base pipe, the middle composite layer and the outer explosion-proof structure, it achieves the integration of pressure-bearing, corrosion-resistant, impact-resistant and explosion-proof functions, and is widely used in high-risk fields such as petrochemical, natural gas transportation, and aerospace.

[0003] For example, the utility model disclosed in authorization announcement number CN220037775U discloses a seamless steel pipe that can be quickly positioned. The invention states that "by setting a flange that rotates within a limiting ring, when assembling two seamless steel pipes, the flange can be rotated to adjust the position of the mounting holes on the flanges at the installation ends of the two seamless steel pipes, so that the mounting holes of the two flanges correspond for installation positioning, facilitating the installation of the seamless steel pipes and achieving high installation efficiency." Although the flexible rotation design of the flange within the limiting ring greatly facilitates the hole alignment operation, an unavoidable rotational gap exists between the flange and the limiting ring. This gap may adversely affect the airtightness of the installation location during the actual installation of the seamless steel pipe. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a multi-layer composite explosion-proof seamless steel pipe structure, comprising a seamless steel pipe, a fixed ring, and a rotating flange. One end of the seamless steel pipe is fixedly connected to the fixed ring, and a rotating flange is rotatably mounted on the outer surface of the fixed ring. The surface of the seamless steel pipe is provided with multiple limiting blocks and connecting components. The seamless steel pipe is slidably engaged with a moving component via the multiple limiting blocks. The seamless steel pipe is detachably connected to the moving component via the connecting components. One end of the moving component is fixedly connected to a sealing component, and the sealing end of the sealing component is aligned with the rotating connection point of the fixed ring and the rotating flange.

[0005] As an improvement to the above technical solution, the sealing assembly includes a movable ring and a sealing ring. One end of the movable assembly is fixedly connected to the movable ring, and one end of the movable ring is fixedly connected to the sealing ring. One end of the sealing ring has two annular grooves. The surfaces of the fixed ring and the rotating flange are provided with annular protrusions, and the annular protrusions are adapted to the annular grooves.

[0006] As an improvement to the above technical solution, the moving component includes a sliding sleeve, a mounting ring, and limiting holes. The upper ends of the multiple limiting blocks are slidably provided with sliding sleeves, and one end of the multiple sliding sleeves is fixedly connected to a mounting ring. The surface of the mounting ring is provided with multiple limiting holes.

[0007] As an improvement to the above technical solution, the connecting component includes a lug, a screw, and a nut. The surface of the seamless steel pipe is provided with multiple lugs, and a screw is fixedly provided at one end of the lug. The screw is adapted to and passes through the limiting hole, and a nut is threadedly connected to the surface of the screw.

[0008] As an improvement to the above technical solution, a rotating handle is fixedly connected to the upper end of the rotating flange.

[0009] The beneficial effects of this utility model are:

[0010] The moving component is pushed, and the sealing ring of the sealing component engages with the annular groove through the annular protrusion, tightly fitting the rotating connection to form a highly efficient and reliable seal, effectively preventing media leakage and ensuring structural safety. Tightening the nut of the connecting component compresses and locks the mounting ring, which not only ensures a tight fit between the sealing component and the rotating connection, but also forms a stable lock on the rotating flange, preventing unnecessary rotation and enhancing the overall structural stability and reliability. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the present utility model;

[0012] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0013] Figure 3 This is a diagram of the annular protrusion structure of this utility model;

[0014] Figure 4 This is a structural diagram of the sealing assembly of this utility model;

[0015] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0016] Reference numerals: 1. Seamless steel pipe; 2. Fixed ring; 3. Rotating flange; 4. Moving component; 41. Sliding sleeve; 42. Mounting ring; 43. Limiting hole; 5. Sealing component; 51. Moving ring; 52. Sealing ring; 53. Annular groove; 6. Limiting block; 7. Connecting component; 71. Lug; 72. Screw; 73. Nut; 8. Rotating handle; 9. Annular protrusion. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a multi-layer composite explosion-proof seamless steel pipe structure, including a seamless steel pipe 1, a fixed ring 2, and a rotating flange 3. One end of the seamless steel pipe 1 is fixedly connected to the fixed ring 2, and the rotating flange 3 is rotatably arranged on the outer surface of the fixed ring 2. The surface of the seamless steel pipe 1 is provided with multiple limiting blocks 6 and connecting components 7. The seamless steel pipe 1 is slidably connected to a moving component 4 through the multiple limiting blocks 6. The seamless steel pipe 1 is detachably connected to the moving component 4 through the connecting components 7. One end of the moving component 4 is fixedly connected to a sealing component 5, and the sealing end of the sealing component 5 is aligned with the rotating connection of the fixed ring 2 and the rotating flange 3.

[0019] In this embodiment, the user only needs to rotate the rotating flange 3 to allow it to rotate smoothly on the outer circumference of the fixed ring 2, thereby conveniently adjusting the hole position of the rotating flange 3 to align it with the hole position of the other mating flange. After the two flanges are installed, the user can further push the moving component 4, which slides smoothly under the guidance of the limiting block 6 until the sealing end of the sealing component 5 tightly fits against the contact surface of the rotating flange 3 and the fixed ring 2, fully covering its rotating connection area. Subsequently, by tightening the connecting component 7, it can be ensured that the sealing end of the sealing component 5 forms a tight fit with the surfaces of the rotating flange 3 and the fixed ring 2, which not only achieves efficient sealing at the rotating connection, but also provides an additional function of restricting the rotation of the rotating flange 3, further enhancing the stability and safety of the overall structure.

[0020] like Figure 4 As shown, the sealing assembly 5 includes a movable ring 51 and a sealing ring 52. One end of the movable assembly 4 is fixedly connected to the movable ring 51, and one end of the movable ring 51 is fixedly connected to the sealing ring 52. One end of the sealing ring 52 has two annular grooves 53. The surfaces of the fixed ring 2 and the rotating flange 3 are provided with annular protrusions 9, which are adapted to the annular grooves 53.

[0021] In this embodiment, when sealing is required at the rotating connection between the rotating flange 3 and the fixed ring 2, simply push the moving component 4 and lock the connecting component 7, so that the annular protrusions 9 on the surfaces of the fixed ring 2 and the rotating flange 3 accurately engage with the annular groove 53 on the sealing ring 52. This design ensures that the sealing ring 52 can fit tightly against the rotating connection, forming an efficient and reliable sealing effect, effectively preventing media leakage, and ensuring the safety and stability of the overall structure.

[0022] like Figure 4 As shown, the moving component 4 includes a sliding sleeve 41, a mounting ring 42, and a limiting hole 43. The upper ends of multiple limiting blocks 6 are all slidably provided with sliding sleeves 41, and one end of the multiple sliding sleeves 41 is fixedly connected to a mounting ring 42. Multiple limiting holes 43 are opened on the surface of the mounting ring 42.

[0023] In this embodiment, the user pushes the mounting ring 42, causing the sliding sleeve 41 to slide on the surface of the limiting block 6, thereby causing the sealing assembly 5 to approach and fit against the rotating connection of the rotating flange 3 and the fixed ring 2.

[0024] like Figure 5 As shown, the connecting component 7 includes a lug 71, a screw 72, and a nut 73. The surface of the seamless steel pipe 1 is provided with a plurality of lugs 71. One end of the lug 71 is fixedly provided with a screw 72. The screw 72 is adapted to and passes through the limiting hole 43. The surface of the screw 72 is threadedly connected with a nut 73.

[0025] In this embodiment, after the sealing component 5 is attached to the rotating connection between the rotating flange 3 and the fixed ring 2, the user only needs to tighten the nut 73. This action will cause the nut 73 to gradually tighten along the thread direction of the screw 72, thereby exerting a squeezing effect on the mounting ring 42 to achieve a locking effect. Furthermore, it will make the sealing component 5 tightly attached to the rotating connection between the rotating flange 3 and the fixed ring 2. In this way, not only is the tight fit between the sealing component 5 and the rotating connection ensured, effectively preventing media leakage, but it also forms a stable lock on the rotating flange 3, preventing unnecessary rotation during use, thereby greatly improving the safety and reliability of the overall structure.

[0026] like Figure 2 As shown, a rotating handle 8 is fixedly connected to the upper end of the rotating flange 3.

[0027] In this embodiment, the user can rotate the rotating flange 3 by turning the rotating handle 8, which makes it easy for the user to adjust the rotation of the rotating flange 3.

[0028] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A multi-layer composite explosion-proof seamless steel pipe structure, comprising a seamless steel pipe (1), a fixing ring (2), and a rotating flange (3), wherein a fixing ring (2) is fixedly connected to one end of the seamless steel pipe (1), and a rotating flange (3) is rotatably mounted on the outer surface of the fixing ring (2), characterized in that: The seamless steel pipe (1) is provided with multiple limiting blocks (6) and connecting components (7) on its surface. The seamless steel pipe (1) is slidably connected to a moving component (4) through multiple limiting blocks (6). The seamless steel pipe (1) is detachably connected to the moving component (4) through the connecting component (7). A sealing component (5) is fixedly connected to one end of the moving component (4). The sealing end of the sealing component (5) is aligned with the rotating connection of the fixing ring (2) and the rotating flange (3).

2. The multi-layer composite explosion-proof seamless steel pipe structure according to claim 1, characterized in that: The sealing assembly (5) includes a movable ring (51) and a sealing ring (52). One end of the movable assembly (4) is fixedly connected to the movable ring (51), and one end of the movable ring (51) is fixedly connected to the sealing ring (52). One end of the sealing ring (52) has two annular grooves (53). The surfaces of the fixed ring (2) and the rotating flange (3) are provided with annular protrusions (9), and the annular protrusions (9) are adapted to the annular grooves (53).

3. The multi-layer composite explosion-proof seamless steel pipe structure according to claim 2, characterized in that: The moving component (4) includes a sliding sleeve (41), a mounting ring (42), and a limiting hole (43). The upper ends of the multiple limiting blocks (6) are slidably provided with sliding sleeves (41), and one end of the multiple sliding sleeves (41) is fixedly connected to a mounting ring (42). The surface of the mounting ring (42) is provided with multiple limiting holes (43).

4. The multi-layer composite explosion-proof seamless steel pipe structure according to claim 3, characterized in that: The connecting member (7) includes a lug (71), a screw (72), and a nut (73). The surface of the seamless steel pipe (1) is provided with a plurality of lugs (71). A screw (72) is fixedly provided at one end of the lug (71). The screw (72) is adapted to and passes through the limiting hole (43). The surface of the screw (72) is threaded with a nut (73).

5. The multi-layer composite explosion-proof seamless steel pipe structure according to claim 1, characterized in that: A rotating handle (8) is fixedly connected to the upper end of the rotating flange (3).

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