Aircraft engine pipeline connecting structure

Abstract

The utility model relates to the technical field of pipeline connecting structures, and discloses an aircraft engine pipeline connecting structure which comprises a first support and a second support, one end of the first support is connected with one end of the second support through a rotating shaft, and the first support and the second support are each in an isosceles trapezoid shape with an opening in one side. A wide hoop strip is arranged on one side of the upper half portion of the first support, a narrow hoop strip is arranged on one side of the lower half portion of the first support, one end of the narrow hoop strip is fixedly connected with one end of the wide hoop strip, and the narrow hoop strip penetrates through the interior of the wide hoop strip. By means of the structure, it can be guaranteed that the periphery of the outer ring of the pipeline connector makes contact with the strake and is attached to the surface of a pipeline, pipelines of various diameters are used, meanwhile, the contact face of the pipeline and a connecting piece is large, and stress is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection structures, and particularly to an aircraft engine pipeline connection structure. Background Technique

[0002] Aircraft engine pipelines refer to the pipeline systems used to transport various fluids (such as fuel, hydraulic oil, air, lubricating oil, etc.) in aircraft engines. These pipeline systems are an indispensable part of the normal operation of aircraft engines, ensuring that the necessary fluids can be accurately transported to various parts of the engine. The pipeline connection structure in an aircraft engine is a component used to connect the pipeline system to various components of the engine.

[0003] For example, the existing Chinese patent (CN215334815U) discloses an aircraft engine pipeline connection structure, including a mounting plate, a first connector, a second connector, a third connector, a fourth connector, a fixing plate, and bolts. The first connector, the second connector, the third connector, and the fourth connector are all arc-shaped structures. The first connector, the second connector, the third connector, and the fourth connector jointly enclose a set of fixing cavities for defining the aircraft engine pipeline. Both ends of the outer sides of the first connector, the second connector, the third connector, and the fourth connector are fixedly connected with fixing plates. Multiple groups of fixing plates are arranged relatively parallel, and bolts are installed on the fixing plates. The first connector and the second connector are both connected to the mounting plate through the fixing plates, and grooves are formed on one side of the mounting plate close to the first connector and the second connector.

[0004] In the above technical solution, the pipeline is fixed by multiple arc-shaped connectors. However, the inner arc sizes of the multiple arc-shaped connectors are fixed. Due to the different diameters of the pipelines, when the above pipeline connection structure is used to fix pipelines of different sizes, it cannot fit the surface of the pipeline, resulting in a small stress surface on the pipeline surface, which is likely to cause poor pipeline sealing or deformation or even damage. Content of the Utility Model

[0005] The purpose of the utility model is to provide an aircraft engine pipeline connection structure to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions: An aircraft engine pipeline connection structure, comprising: a first bracket and a second bracket, one end of the first bracket and the second bracket is connected by a rotating shaft, both the first bracket and the second bracket are isosceles trapezoids with one side open, a wide hoop strip is provided on one side of the upper half of the first bracket, a narrow hoop strip is provided on one side of the lower half of the first bracket, one end of the narrow hoop strip is fixedly connected to one end of the wide hoop strip, the narrow hoop strip passes through the inside of the wide hoop strip, positioning through grooves are provided inside both the wide hoop strip and the narrow hoop strip, a fixed insertion plate is provided inside the positioning through groove, and a locking bolt is provided between one side of the fixed insertion plate and the first bracket.

[0007] Further, a screw rod is provided in the middle of the first bracket, a screw rod is also provided in the middle of the second bracket, a clamping plate is provided at one end of the screw rod close to the wide hoop strip, a locking nut is provided on the outer side of the screw rod, and one end of the locking nut abuts against the first bracket or the second bracket.

[0008] Further, a plurality of positioning through grooves are provided, a fixed insertion plate is provided on the positioning through groove close to the outer wall of the first bracket, a handle is provided at one end of the fixed insertion plate, and a through hole is opened at the connection part of the inside of the fixed insertion plate and the locking bolt.

[0009] Further, a strip-shaped hole is opened at the connection part of the inside of the first bracket and the locking bolt.

[0010] Further, flanges are provided at the bottoms of both the first bracket and the second bracket, and positioning bolts are provided between the flanges.

[0011] Further, a cross groove is opened inside the wide hoop strip, one end of the narrow hoop strip passes through the cross groove, an insertion groove is opened inside the first bracket at the part where the wide hoop strip and the narrow hoop strip pass through, and the fixed insertion plate is located outside the insertion groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] By providing the first bracket, the second bracket and the wide hoop strip, when the aircraft engine pipeline connection structure is used and the joint of the aircraft engine pipeline is connected to the pipeline, the through hole formed in the center of the wide hoop strip and the narrow hoop strip is sleeved outside the pipeline joint, and then, in the direction away from the first bracket, the wide hoop strip and the narrow hoop strip are pulled simultaneously, so that the diameter of the through hole between the wide hoop strip and the narrow hoop strip becomes smaller until the wide hoop strip and the narrow hoop strip tightly press the pipeline outside the pipeline joint. At this time, the fixed insertion plate is inserted into the positioning through groove next to the first bracket to fix the positions of the wide hoop strip and the narrow hoop strip. Subsequently, the fixed insertion plate is fixed by the locking bolt to ensure the stability of the wide hoop strip and the narrow hoop strip. Finally, by rotating the screw rod, the clamping plate is tightly abutted against the outside of the wide hoop strip to further increase the stability of the hoop strip and ensure the stable connection of the pipeline.

[0014] When connecting pipelines, through the cross - arranged wide hoop strips and narrow hoop strips, it can ensure that the outer circumference of the pipeline joint is in contact with the hoop strips all around, fitting with the pipeline surface. When using pipelines with multiple diameters, the contact surface between the pipeline and the connector is large, and the force is more uniform. Brief Description of the Drawings

[0015] Figure 1 It is a three - dimensional view of a pipeline connection structure of an aircraft engine of the present utility model;

[0016] Figure 2 It is a front view of a pipeline connection structure of an aircraft engine of the present utility model;

[0017] Figure 3 It is a left view of a pipeline connection structure of an aircraft engine of the present utility model;

[0018] Figure 4 It is a three - dimensional view of a pipeline connection structure of an aircraft engine of the present utility model from another perspective.

[0019] In the figure: 1. First bracket; 2. Second bracket; 3. Wide hoop strip; 4. Narrow hoop strip; 5. Positioning through - slot; 6. Fixed insertion plate; 7. Locking bolt; 8. Strip - shaped hole; 9. Screw rod; 10. Locking nut; 11. Clamping plate; 12. Cross - slot; 13. Interpenetrating slot; 14. Positioning bolt. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Please refer to Figures 1 - 4, the present utility model provides a technical solution: an aircraft engine pipeline connection structure, comprising: a first bracket 1 and a second bracket 2. One end of the first bracket 1 and the second bracket 2 is connected by a rotating shaft. Both the first bracket 1 and the second bracket 2 are isosceles trapezoids with one side open. On one side of the upper half of the first bracket 1, there is a wide hoop strip 3. On one side of the lower half of the first bracket 1, there is a narrow hoop strip 4. One end of the narrow hoop strip 4 is fixedly connected to one end of the wide hoop strip 3. The narrow hoop strip 4 passes through the inside of the wide hoop strip 3. Inside both the wide hoop strip 3 and the narrow hoop strip 4, there is a positioning through groove 5. Inside the positioning through groove 5, there is a fixed insertion plate 6. Between one side of the fixed insertion plate 6 and the first bracket 1, there is a locking bolt 7. The through hole formed in the center of the wide hoop strip 3 and the narrow hoop strip 4 is sleeved outside the pipeline joint. Then, in the direction away from the first bracket 1, the wide hoop strip 3 and the narrow hoop strip 4 are pulled simultaneously, so that the diameter of the through hole between the wide hoop strip 3 and the narrow hoop strip 4 becomes smaller until the wide hoop strip 3 and the narrow hoop strip 4 tightly press the pipeline only on the outside of the pipeline joint. At this time, the fixed insertion plate 6 is inserted into the positioning through groove 5 next to the first bracket 1 to fix the positions of the wide hoop strip 3 and the narrow hoop strip 4. Subsequently, the fixed insertion plate 6 is fixed by the locking bolt 7 to ensure the stability of the wide hoop strip 3 and the narrow hoop strip 4.

[0022] In the middle of the first bracket 1, there is a screw rod 9. In the middle of the second bracket 2, there is also a screw rod 9. One end of the screw rod 9 close to the wide hoop strip 3 is provided with a clamping plate 11. Outside the screw rod 9, there is a locking nut 10. One end of the locking nut 10 abuts against the first bracket 1 or the second bracket 2. By rotating the screw rod 9, the clamping plate 11 is tightly abutted against the outside of the wide hoop strip 3 to further increase the stability of the hoop strip and ensure the stable connection of the pipeline.

[0023] There are multiple positioning through grooves 5. Among them, on the positioning through groove 5 close to the outer wall of the first bracket 1, there is a fixed insertion plate 6. One end of the fixed insertion plate 6 is provided with a handle. Inside the fixed insertion plate 6, a through hole is opened at the connection part with the locking bolt 7. This is suitable for the connection and fixation of pipelines with different diameters. When the pipeline diameters are different, the pulling-out lengths of the wide hoop strip 3 and the narrow hoop strip 4 are different, corresponding to different positioning through grooves 5.

[0024] Inside the first bracket 1, a strip-shaped hole 8 is opened at the connection part with the locking bolt 7 for the connection and fixation of the fixed insertion plate 6 and the first bracket 1. The design of the strip-shaped hole 8 facilitates the locking bolt 7 to still be fixed when the insertion depth of the fixed insertion plate 6 is different.

[0025] At the bottoms of both the first bracket 1 and the second bracket 2, there are flanges. Between the flanges, there is a positioning bolt 14 for the connection and fixation of the first bracket 1 and the second bracket 2.

[0026] The wide hoop strip 3 is internally provided with a cross slot 12 for the narrow hoop strip 4 to pass through. One end of the narrow hoop strip 4 passes through the cross slot 12. An insertion slot 13 is provided inside the first bracket 1 at the position where the wide hoop strip 3 and the narrow hoop strip 4 pass through. The fixed insertion plate 6 is located outside the insertion slot 13.

[0027] When the aircraft engine pipeline connection structure is in use, when the joint of the aircraft engine pipeline is connected to the pipeline, the through hole formed in the center of the wide hoop strip 3 and the narrow hoop strip 4 is sleeved outside the pipeline joint. Then, in the direction away from the first bracket 1, the wide hoop strip 3 and the narrow hoop strip 4 are pulled simultaneously, so that the diameter of the through hole between the wide hoop strip 3 and the narrow hoop strip 4 becomes smaller until the wide hoop strip 3 and the narrow hoop strip 4 tightly press the pipeline against the outside of the pipeline joint. At this time, the fixed insertion plate 6 is inserted into the positioning through slot 5 next to the first bracket 1 to fix the positions of the wide hoop strip 3 and the narrow hoop strip 4. Subsequently, the fixed insertion plate 6 is fixed by the locking bolt 7 to ensure the stability of the wide hoop strip 3 and the narrow hoop strip 4. Finally, by rotating the screw rod 9, the clamping plate 11 is tightly pressed against the outside of the wide hoop strip 3 to further increase the stability of the hoop strip and ensure the stable connection of the pipeline.

[0028] During pipeline connection, through the cross - arranged wide hoop strip 3 and narrow hoop strip 4, it can be ensured that the outer circumference of the pipeline joint is in contact with the hoop strip all around, fitting the surface of the pipeline. When using pipelines of various diameters, the contact surface between the pipeline and the connector is large and the force is more evenly distributed.

[0029] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Claims

1. An aircraft engine pipeline connection structure, comprising: The first bracket (1) and the second bracket (2), characterized in that: one end of the first bracket (1) and the second bracket (2) is connected by a rotating shaft, both the first bracket (1) and the second bracket (2) are isosceles trapezoids with one side open, a wide hoop strip (3) is provided on one side of the upper half of the first bracket (1), a narrow hoop strip (4) is provided on one side of the lower half of the first bracket (1), one end of the narrow hoop strip (4) is fixedly connected to one end of the wide hoop strip (3), the narrow hoop strip (4) passes through the inside of the wide hoop strip (3), positioning through grooves (5) are provided inside both the wide hoop strip (3) and the narrow hoop strip (4), a fixed insertion plate (6) is provided inside the positioning through groove (5), and a locking bolt (7) is provided between one side of the fixed insertion plate (6) and the first bracket (1).

2. The aircraft engine pipeline connection structure according to claim 1, characterized in that: A screw rod (9) is provided in the middle of the first bracket (1), a screw rod (9) is also provided in the middle of the second bracket (2), a clamping plate (11) is provided at one end of the screw rod (9) close to the wide hoop strip (3), a locking nut (10) is provided on the outer side of the screw rod (9), and one end of the locking nut (10) abuts against the first bracket (1) or the second bracket (2).

3. The aircraft engine pipeline connection structure according to claim 1, characterized in that: A plurality of the positioning through grooves (5) are provided, a fixed insertion plate (6) is provided on the positioning through groove (5) close to the outer wall of the first bracket (1), a handle is provided at one end of the fixed insertion plate (6), and a through hole is opened at the connection part of the inside of the fixed insertion plate (6) and the locking bolt (7).

4. A pipeline connection structure for an aircraft engine according to claim 3, characterized in that: A strip-shaped hole (8) is opened at the connection part of the inside of the first bracket (1) and the locking bolt (7).

5. The aircraft engine pipeline connection structure according to claim 1, characterized in that: Flanges are provided at the bottoms of both the first bracket (1) and the second bracket (2), and positioning bolts (14) are provided between the flanges.

6. The aircraft engine pipeline connection structure according to claim 1, characterized in that: A cross groove (12) is opened inside the wide hoop strip (3), one end of the narrow hoop strip (4) passes through the cross groove (12), an insertion groove (13) is opened inside the first bracket (1) at the part where the wide hoop strip (3) and the narrow hoop strip (4) pass through, and the fixed insertion plate (6) is located outside the insertion groove (13).

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