Flexible composite pipe joint connecting structure

Abstract

The utility model discloses a flexible composite pipe joint connecting structure, which belongs to the technical field of pipe joints and is characterized in that rotating rings and a fixed ring are coaxial, and the rotating rings are rotatably arranged on two sides of the fixed ring; a fixed inner ring is fixedly arranged on the outer side of the rotating ring, symmetrical semicircular flexible outer rings are arranged on the outer side of the fixed inner ring, the bottoms of the flexible outer rings are fixedly arranged on the inner wall of the rotating ring, and a mounting cavity is formed between the fixed inner ring and the flexible outer rings; an open groove is formed in the middle of the flexible outer ring, a plurality of moving structures are further movably arranged in the middle of the fixing ring, second bolts are installed on the moving structures in a threaded mode, and the second bolts and the open groove are matched with each other to lock the flexible composite pipe. The pipelines on the two sides can be independently installed through the cooperation of the fixed ring and the rotating ring, when the pipelines on the two sides are vibrated by external force, the structure can efficiently unload force, and damage to the pipelines and the connector caused by too large stress is avoided. The structure is simple and easy to maintain, and practicability and stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, in particular to a flexible composite pipe joint connection structure. Background Art

[0002] A flexible composite pipe is a pipe fitting for the oil and gas industry made of polymer composite materials, having advantages such as certain high strength, high pressure resistance, and corrosion resistance. A composite pipe is generally composed of two or more chemical substances. By reasonably selecting materials and reinforcement methods, the problems of metal pipe corrosion and poor pressure resistance of plastic pipes are solved, and the performance is more excellent. Therefore, it has been widely used in aspects such as oil and gas transportation.

[0003] The published patent No. CN221258062U discloses a socket joint for a marine flexible composite pipe, which relates to the technical field of flexible composite pipes. It includes a flexible pipe and a sleeve movably arranged on the outer wall of one end of the flexible pipe. A plurality of through holes are arranged on the outer side wall of the sleeve in a circumferentially arrayed manner. A pressure plate adapted thereto is slidably arranged in the through hole. One end of the pressure plate is provided with an arc surface. A rubber diaphragm is fixedly arranged at the arc surface end of the pressure plate. The rubber diaphragm is fixedly arranged on the outer side wall of the sleeve. A serrated block is fixedly arranged at the end of the pressure plate away from the rubber diaphragm. A serrated groove adapted to the serrated block is arranged on the outer wall of one end of the flexible pipe. Through the pressing of the rubber diaphragm and the pressure plate by the seawater pressure, the serrated block can be inserted into the serrated groove after moving, so as to lock one end of the flexible pipe. The greater the water pressure, the firmer the locking. Since the locking structures such as the pressure plate and the serrated block are all arranged outside the flexible pipe, they will not be scoured by the transportation medium inside the flexible pipe, and the service life is longer.

[0004] The installation process of the composite pipe joint in the above comparative document is cumbersome, time-consuming and laborious, and the degree of freedom is general. It cannot independently lock and adjust the composite pipes on both sides. Therefore, a flexible composite pipe joint connection structure is designed here to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a flexible composite pipe joint connection structure in order to solve the problems that the installation process of traditional composite pipe joints is cumbersome, time-consuming and laborious, the degree of freedom is general, and the composite pipes on both sides cannot be independently locked and adjusted.

[0006] To achieve the above object, the technical solution of the present utility model is: a flexible composite pipe joint connection structure, including a fixed ring and a rotating ring, the rotating ring is coaxial with the fixed ring, and the rotating ring is rotatably arranged on both sides of the fixed ring; a fixed inner ring is fixedly arranged on the outer side of the rotating ring, and symmetrical semi-circular flexible outer rings are arranged on the outer side of the fixed inner ring. The bottom of the flexible outer ring is fixedly arranged on the inner wall of the rotating ring, and an installation cavity is formed between the fixed inner ring and the flexible outer ring; a slot is opened in the middle of the flexible outer ring, and a plurality of groups of moving structures are also movably arranged in the middle of the fixed ring. A second bolt is threadedly installed on the moving structure, and the second bolt cooperates with the slot to lock the flexible composite pipe.

[0007] As a further scheme of the present utility model: T-shaped grooves are opened on the inner walls of both sides of the fixed ring, and T-shaped rails are arranged on the inner side of the rotating ring to cooperate with them.

[0008] As a further scheme of the present utility model: vertical plates are arranged symmetrically on the tops of the flexible outer rings on both sides, and the vertical plates are connected to each other by a first bolt.

[0009] As a further scheme of the present utility model: a plurality of groups of convex blocks are arranged on the inner wall of the flexible outer ring.

[0010] As a further scheme of the present utility model: symmetrical sliding grooves are opened on the outer wall of the fixed ring, and sliding seats are arranged at the bottom of the moving structure to cooperate with them.

[0011] As a further scheme of the present utility model: a cross frame facing the flexible outer ring is arranged on the moving structure, and the second bolt is threadedly arranged on the cross frame.

[0012] As a further scheme of the present utility model: a convex portion is arranged at the bottom of the second bolt.

[0013] The present utility model provides a flexible composite pipe joint connection structure through improvement. Compared with the prior art, it has the following improvements and advantages:

[0014] Through the cooperation of the fixed ring and the rotating ring, the present utility model can independently install the pipes on both sides. And when the pipes on both sides are subjected to external vibration, this structure can efficiently unload the force and avoid damage to the pipes and joints caused by excessive stress. When the flexible outer ring is locked inward, it can quickly lock the pipe. With the cooperation of the moving structure and the slot, the outer wall of the pipe can be locked again. This structure is simple and easy to maintain, which further improves the practicability and stability of the flexible composite pipe joint connection structure. Description of the Drawings

[0015] The present utility model will be further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a three-dimensional structure diagram of the structure of the present utility model;

[0017] Figure 2 It is a three-dimensional structure diagram of the fixing ring in the present utility model;

[0018] Figure 3 It is a three-dimensional structure diagram of the rotating ring in the present utility model.

[0019] Explanation of the reference numerals in the drawings:

[0020] 1. Fixing ring; 2. Rotating ring; 3. T-shaped groove; 4. T-shaped rail; 5. Fixed inner ring; 6. Flexible outer ring; 7. Protrusion; 8. Vertical plate; 9. First bolt; 10. Installation cavity; 11. Slotted opening; 12. Chute; 13. Movement structure; 14. Slide seat; 15. Cross frame; 16. Second bolt; 17. Protruding portion. Specific embodiments

[0021] The following will be combined with the attached Figures 1 to 3 The present utility model will be described in detail. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0022] The present utility model provides a flexible composite pipe joint connection structure through improvement. As Figures 1 - 3 shown, a flexible composite pipe joint connection structure includes a fixing ring 1 and a rotating ring 2. The rotating ring 2 is coaxial with the fixing ring 1, and the rotating ring 2 is rotatably arranged on both sides of the fixing ring 1; a fixed inner ring 5 is fixedly arranged on the outer side of the rotating ring 2, and symmetrical semi-circular flexible outer rings 6 are arranged on the outer side of the fixed inner ring 5. The bottom of the flexible outer ring 6 is fixedly arranged on the inner wall of the rotating ring 2. An installation cavity 10 is formed between the fixed inner ring 5 and the flexible outer ring 6; a slotted opening 11 is formed in the middle of the flexible outer ring 6, and a plurality of movement structures 13 are movably arranged in the middle of the fixing ring 1. A second bolt 16 is threadedly installed on the movement structure 13, and the second bolt 16 cooperates with the slotted opening 11 to lock the flexible composite pipe.

[0023] The utility model can independently install the pipelines on both sides through the cooperation of the fixed ring 1 and the rotating ring 2. When the pipelines on both sides are subjected to external vibration, this structure can efficiently relieve the force, avoiding damage to the pipelines and joints caused by excessive stress. When the flexible outer ring 6 is locked inward, it can quickly lock the pipeline. With the cooperation of the moving structure 13 and the slot 11, the outer wall of the pipeline can be locked again. This structure is simple and easy to maintain, which further improves the practicability and stability of the connection structure of the flexible composite pipe joint.

[0024] Refer to the appendix Figure 2 - appendix Figure 3 , T-shaped grooves 3 are provided on the inner walls of both sides of the fixed ring 1, and T-shaped rails 4 that cooperate with them are arranged on the inner side of the rotating ring 2.

[0025] In this embodiment: In order to ensure the independent rotation of the rotating rings 2 on both sides relative to the fixed ring 1, the T-shaped groove 3 and the T-shaped rail 4 structure are designed.

[0026] Refer to the appendix Figure 1 and appendix Figure 3 , symmetric vertical plates 8 are provided at the tops of the flexible outer rings 6 on both sides, and the vertical plates 8 are connected to each other by the first bolts 9.

[0027] In this embodiment: In order to facilitate the locking of the flexible outer rings 6 on both sides, so as to lock the pipeline in the installation cavity 10, the symmetric vertical plates 8 are designed.

[0028] Refer to the appendix Figure 1 and appendix Figure 3 , multiple groups of convex blocks 7 are provided on the inner wall of the flexible outer ring 6.

[0029] In this embodiment: In order to further increase the friction force, thereby improving the stability and airtightness during locking, multiple groups of convex blocks 7 are arranged at intervals on the inner wall of the flexible outer ring 6.

[0030] Refer to the appendix Figure 2 - appendix Figure 3 , symmetric chutes 12 are provided on the outer wall of the fixed ring 1, a sliding seat 14 that cooperates with it is arranged at the bottom of the moving structure 13, a cross frame 15 facing the flexible outer ring 6 is arranged on the moving structure 13, and the second bolt 16 is threadedly arranged on the cross frame 15.

[0031] In this embodiment: In order to increase the degree of freedom and independently lock the rotating rings 2 on both sides, multiple groups of moving structures 13 are independently designed. When the flexible outer ring 6 locks the pipeline, at this time the cross frame 15 is exactly above the slot 11.

[0032] Refer to the appendix Figure 1 - appendix Figure 2 , a convex portion 17 is provided at the bottom of the second bolt 16.

[0033] In this embodiment: When locking the outer wall of the pipeline, in order to prevent the bottom of the second bolt 16 from damaging the pipeline, a spherical convex portion 17 is designed.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible composite pipe joint connection structure, characterized in that: The invention comprises a fixed ring (1) and a rotating ring (2), wherein the rotating ring (2) is coaxial with the fixed ring (1), and the rotating ring (2) is rotatably arranged on both sides of the fixed ring (1); a fixed inner ring (5) is fixedly arranged on the outer side of the rotating ring (2), and a symmetrical semicircular flexible outer ring (6) is arranged on the outer side of the fixed inner ring (5), and the bottom of the flexible outer ring (6) is fixedly arranged on the inner wall of the rotating ring (2), and an installation cavity (10) is formed between the fixed inner ring (5) and the flexible outer ring (6); a slot (11) is provided in the middle of the flexible outer ring (6), and a plurality of moving structures (13) are also movably arranged in the middle of the fixed ring (1), and a second bolt (16) is threadedly installed on the moving structure (13), and the second bolt (16) cooperates with the slot (11) to lock the flexible composite pipe.

2. A flexible composite pipe joint connection structure according to claim 1, characterized in that: T-shaped grooves (3) are provided on the inner walls of both sides of the fixed ring (1), and a T-shaped rail (4) matching with the rotating ring (2) is provided on the inner side of the rotating ring (2).

3. A flexible composite pipe joint connection structure according to claim 1, characterized in that: Symmetrical vertical plates (8) are arranged on the tops of the flexible outer rings (6) on both sides, and the vertical plates (8) are connected to each other via first bolts (9).

4. A flexible composite pipe joint connection structure according to claim 1, characterized in that: A plurality of groups of protrusions (7) are arranged on the inner wall of the flexible outer ring (6).

5. The flexible composite pipe joint connection structure according to claim 1, characterized in that: A symmetrical sliding groove (12) is provided on the outer wall of the fixing ring (1), and a sliding seat (14) cooperating therewith is provided at the bottom of the moving structure (13).

6. The flexible composite pipe joint connection structure according to claim 1, characterized in that: The moving structure (13) is provided with a cross frame (15) facing the flexible outer ring (6), and the second bolt (16) is threadedly arranged on the cross frame (15).

7. A flexible composite pipe joint connection structure according to claim 1, characterized in that: A protrusion (17) is provided at the bottom of the second bolt (16).

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