External thread elbow

Abstract

The utility model discloses an external thread elbow which comprises an elbow pipe, and the elbow pipe comprises two pipe bodies. The pipe further comprises an adjusting mechanism, the adjusting mechanism is arranged between the two pipe bodies, the adjusting mechanism comprises an outer connecting ring and an inner connecting ring, and the two pipe bodies are rotationally connected through the outer connecting ring and the inner connecting ring, so that the angle of the two outer connecting rings can be adjusted; the adjusting mechanism comprises a sliding groove formed in the outer connecting ring and a ball connected in the inner connecting ring in a rolling mode, and the ball is connected with the sliding groove in a sliding mode. Due to the fact that the bent pipe is composed of the two pipe bodies, the angle position can be adjusted according to installation requirements during installation, and flexible angle adjustment between the two outer connecting rings is achieved. By arranging the adjusting mechanism, the sealing performance of the inner wall of the pipe body can be enhanced, and medium leakage is effectively prevented, so that the safety and reliability of a pipeline system are improved, and the leakage risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of elbow technology, and in particular to an external thread elbow. Background Technology

[0002] As a common pipe fitting, the external thread elbow is mainly used to change the direction of the pipeline. It plays a key role in connection and turning in the pipeline system, and its performance and function directly affect the operating efficiency and reliability of the entire pipeline system.

[0003] Traditional threaded elbows are typically designed with a fixed angle, which presents several limitations during actual installation. First, their angle is not adjustable, failing to meet the flexible requirements for pipe angles under certain special working conditions. In actual pipe laying, due to site limitations, complex equipment layouts, or the need for fine-tuning of pipe routes, fixed-angle elbows often cannot be precisely fitted, potentially leading to installation difficulties or even requiring on-site processing such as cutting and welding, increasing installation time and costs. Therefore, a threaded elbow is proposed to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an external threaded elbow.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an external threaded elbow, comprising a bend, the bend comprising two tube bodies; and further comprising an adjustment mechanism disposed between the two tube bodies, the adjustment mechanism comprising an outer connecting ring and an inner connecting ring, the two tube bodies being rotatably connected by the outer connecting ring and the inner connecting ring, so that the angle of the two outer connecting rings can be adjusted.

[0006] As a further description of the above technical solution: the adjustment mechanism includes a groove formed in the outer connecting ring and a ball bearing that is slidably connected in the inner connecting ring. The ball bearing and the groove are slidably connected. When it is necessary to adjust the angle of the elbow to adapt to different pipe layouts, the relative position between the two pipe bodies can be changed by manually rotating the outer connecting ring. The ball bearing rolls in the inner connecting ring and slides along the groove of the outer connecting ring, thereby realizing the angle adjustment between the two outer connecting rings.

[0007] As a further description of the above technical solution: a fixing ring is fixedly connected to the inner wall of each of the two tubes, so that a second groove and a first groove are formed between the two tubes. A fixing bladder is fixedly engaged in the first groove. One end of the fixing bladder is in contact with the inner wall of the tube, and a compression bladder is fixedly connected to the other end of the fixing bladder.

[0008] As a further description of the above technical solution: the compression bladder and the fixing bladder are an integral structure, and the compression bladder and the fixing bladder are connected. An elastic ring is installed inside the compression bladder. The elastic ring abuts against the inner wall of the compression bladder, and a through groove is opened on the circumferential side wall of the elastic ring. The function of the elastic ring is to provide a certain elastic support when the compression bladder is squeezed, so as to ensure that the compression bladder can transmit pressure evenly. When the fluid pressure decreases, the elastic ring can help the compression bladder return to its original shape and extend its service life. At the same time, the through groove helps the fluid to flow inside the compression bladder, making the pressure transmission more uniform.

[0009] During use, when fluid enters the tube, it will exert pressure on the compression bladder. After the compression bladder is squeezed, the air or liquid inside it enters the fixing bladder through the connecting structure, causing the fixing bladder to expand. As the fixing bladder expands, its sealing performance with the inner wall of the tube is enhanced.

[0010] As a further description of the above technical solution: the compression bladder has a triangular structure, and both the compression bladder and the fixation bladder are made of elastic material.

[0011] This utility model has the following beneficial effects:

[0012] 1. Compared with existing technologies, by setting up an adjustment mechanism, when the medium flows through the pipe, it will press against the compression bladder. When the compression bladder is squeezed, the air or liquid inside it fills the fixed bladder through the connecting structure, causing the fixed bladder to expand. This enhances the sealing performance of the inner wall of the pipe, effectively preventing medium leakage, thereby improving the safety and reliability of the pipeline system and reducing the risk of medium loss and potential safety accidents caused by leakage.

[0013] 2. Compared with existing technologies, this type of external threaded elbow, by setting up a bend composed of two pipe bodies, allows for adjustment of the angle position according to installation needs during installation, realizing flexible angle adjustment between the two external connecting rings; since the elbow can flexibly adapt to various complex pipeline layouts and special working conditions, no additional on-site processing such as cutting and welding is required, saving installation time and costs and improving installation efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an external threaded elbow proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the pipe body in an external threaded elbow proposed in this utility model;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0018] Figure 5 This is a schematic diagram of the elastic ring structure in an external threaded elbow proposed in this utility model.

[0019] Legend:

[0020] 1. Tube body; 2. Outer connecting ring; 3. Slide groove; 4. Inner connecting ring; 5. Ball bearing; 6. Fixing ring; 7. First groove; 8. Fixing bladder; 9. Compression bladder; 10. Second groove; 11. Elastic ring; 12. Through groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-5 The present invention provides an external threaded elbow: including a bend, the bend comprising two pipe bodies 1; and an adjustment mechanism disposed between the two pipe bodies 1, the adjustment mechanism comprising an outer connecting ring 2 and an inner connecting ring 4, the two pipe bodies 1 being rotatably connected by the outer connecting ring 2 and the inner connecting ring 4, so that the angle of the two outer connecting rings 2 can be adjusted.

[0023] The adjustment mechanism includes a groove 3 formed in the outer connecting ring 2 and a ball 5 that is rolled in the inner connecting ring 4. The ball 5 and the groove 3 are slidably connected. When the angle of the elbow needs to be adjusted to adapt to different pipe layouts, the relative position between the two pipe bodies 1 can be changed by manually rotating the outer connecting ring 2. The ball 5 rolls in the inner connecting ring 4 and slides along the groove 3 of the outer connecting ring 2, thereby realizing the angle adjustment between the two outer connecting rings 2.

[0024] Two tube bodies 1 are each fixedly connected to a fixing ring 6 on their inner walls, forming a second groove 10 and a first groove 7 between the two tube bodies 1. A fixing bladder 8 is fixedly engaged in the first groove 7. One end of the fixing bladder 8 contacts the inner wall of the tube body 1, and the other end of the fixing bladder 8 is fixedly connected to a compression bladder 9. The compression bladder 9 and the fixing bladder 8 are an integral structure and are connected to each other. An elastic ring 11 is installed inside the compression bladder 9. The elastic ring 11 abuts against the inner wall of the compression bladder 9, and a through groove 12 is opened on the circumferential side wall of the elastic ring 11. The function of the elastic ring 11 is to provide a certain elastic support when the compression bladder 9 is compressed, ensuring that the compression bladder 9 can transmit pressure evenly. When the fluid pressure decreases, the elastic ring 11 can help the compression bladder 9 return to its original shape and extend its service life. At the same time, the through groove 12 helps the fluid flow inside the compression bladder 9, making the pressure transmission more uniform.

[0025] During use, when fluid enters the pipe body 1, it will exert pressure on the compression bladder 9. After the compression bladder 9 is squeezed, the air or liquid inside it enters the fixed bladder 8 through the connecting structure, causing the fixed bladder 8 to expand. As the fixed bladder 8 expands, the sealing performance between it and the inner wall of the pipe body 1 is enhanced.

[0026] The compression bladder 9 has a triangular structure, and both the compression bladder 9 and the fixing bladder 8 are made of elastic material. The triangular structure of the compression bladder 9 can more effectively transmit pressure to the fixing bladder 8 when subjected to fluid pressure. At the same time, the choice of elastic material allows the compression bladder 9 and the fixing bladder 8 to expand and contract flexibly when the pressure changes, ensuring the stability and reliability of the sealing performance.

[0027] Working principle: When it is necessary to adjust the angle of the elbow to adapt to different pipe layouts, the relative position between the two pipe bodies 1 can be changed by manually rotating the outer connecting ring 2. The ball 5 rolls in the inner connecting ring 4 and slides along the groove 3 of the outer connecting ring 2, thereby realizing the angle adjustment between the two outer connecting rings 2.

[0028] When fluid enters the pipe body 1, it will exert pressure on the compression bladder 9. After the compression bladder 9 is squeezed, the air or liquid inside it enters the fixed bladder 8 through the connecting structure, causing the fixed bladder 8 to expand. As the fixed bladder 8 expands, the sealing performance between it and the inner wall of the pipe body 1 is enhanced, effectively preventing fluid leakage. Thus, the sealing effect can be automatically adjusted according to the magnitude of the fluid pressure.

[0029] In addition, the elastic ring 11 plays a buffering and supporting role in the pressure bladder 9, ensuring that the pressure bladder 9 can transmit pressure evenly when subjected to fluid pressure, and helping the pressure bladder 9 to return to its original shape when the pressure decreases, thus extending its service life; the through groove 12 on the side wall of the elastic ring 11 helps the fluid to flow inside the pressure bladder 9, making the pressure transmission more uniform, and further improving the stability and reliability of the sealing performance.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An externally threaded elbow, comprising a bent pipe, characterized in that: The bend includes two pipe bodies (1); it also includes an adjustment mechanism, which is set between the two pipe bodies (1). The adjustment mechanism includes an outer connecting ring (2) and an inner connecting ring (4). The two pipe bodies (1) are rotatably connected by the outer connecting ring (2) and the inner connecting ring (4) so ​​that the angle of the two outer connecting rings (2) can be adjusted.

2. The external threaded elbow according to claim 1, characterized in that: The adjustment mechanism includes a groove (3) formed in the outer connecting ring (2) and a ball (5) that is rolled in the inner connecting ring (4), wherein the ball (5) and the groove (3) are slidably connected.

3. The external threaded elbow according to claim 2, characterized in that: The inner walls of the two tubes (1) are fixedly connected with a fixing ring (6), so that a second groove (10) and a first groove (7) are formed between the two tubes (1). A fixing bladder (8) is fixedly engaged in the first groove (7). One end of the fixing bladder (8) is in contact with the inner wall of the tube (1), and the other end of the fixing bladder (8) is fixedly connected with a compression bladder (9).

4. The external threaded elbow according to claim 3, characterized in that: The compression bladder (9) and the fixation bladder (8) are an integral structure, and the compression bladder (9) and the fixation bladder (8) are connected to each other.

5. The external threaded elbow according to claim 4, characterized in that: An elastic ring (11) is installed inside the compression bladder (9). The elastic ring (11) and the inner wall of the compression bladder (9) are in contact, and a through groove (12) is provided on the side wall of the elastic ring (11).

6. The external threaded elbow according to claim 5, characterized in that: The compression bladder (9) has a triangular structure, and both the compression bladder (9) and the fixation bladder (8) are made of elastic material.

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