Connecting assembly for aviation hydraulic pipeline

Abstract

The utility model relates to the field of pipeline connecting assemblies, and discloses a connecting assembly for aviation hydraulic pipelines, which comprises a connecting ring, extension rings are fixedly connected in the left side and the right side of the connecting ring, a plurality of first cavities are formed in the left side and the right side of the connecting ring, two fixing columns are fixedly connected in the first cavities, and the two fixing columns are fixedly connected in the left side and the right side of the connecting ring. The outer portions of the fixing columns are sleeved with first springs, the outer portions of the two fixing columns are slidably connected with a limiting plate, one side of the limiting plate is fixedly connected with a pulling plate, the other side of the limiting plate is fixedly connected with a rubber plate, a sealing ring is arranged in the middle of the connecting ring, and a plurality of telescopic assemblies are arranged in the connecting ring. According to the utility model, the auxiliary fixation of the connecting pipe I and the connecting pipe II after connection is realized, the shaking during connection is prevented, the quick disassembly of the sealing ring is realized, and the later maintenance and installation of the sealing ring are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of pipeline connection components, in particular to a connection component used for aviation hydraulic pipelines. Background Art

[0002] Aviation hydraulic lines are key components in aircraft hydraulic systems, used to transmit hydraulic fluid to achieve various aircraft operations and control functions. These lines are usually made of high-strength, corrosion-resistant materials such as steel or aluminum alloys, and are rigorously designed and tested to ensure their reliability and safety under various conditions.

[0003] After searching, the Chinese patent document with the announcement number CN217301984U relates to a pipeline connection assembly, in particular, a connection assembly for aviation hydraulic pipelines, including an outer sleeve nut, a screw sleeve, an inner cone sleeve and an outer surface sleeve; the inner wall of the outer sleeve nut is provided with a first step surface matching the first end of the inner cone sleeve in the transition section from the first narrow end to the first wide end, and the second end of the inner cone sleeve is provided with an inner conical surface; the inner wall of the screw sleeve is provided with a second step surface matching the first end of the outer surface sleeve in the transition section from the second narrow end to the second wide end, and the second end of the outer surface sleeve is provided with an outer profile; the outer profile is adapted to the inner conical surface; the first wide end of the outer sleeve nut is threadedly connected with the second wide end of the screw sleeve. The threads of the outer sleeve nut and the screw sleeve are tightened, and the inner cone surface of the inner cone sleeve contacts and matches with the outer profile of the outer surface sleeve, so as to achieve sealing, facilitate assembly, and reduce the weight of the connection assembly.

[0004] The working principle of the above patent specification mentions that "the outer sleeve nut 1 and the screw sleeve 2 are aligned and tightened. During the tightening process, the inner conical surface 31 of the inner conical sleeve 3 and the outer surface 41 of the outer surface sleeve 4 are in contact and matched to achieve sealing. There is a gap between the end of the first conduit 101 and the end of the second conduit 102. Then the outer sleeve nut and the screw sleeve threads are tightened. Under the action of the tightening torque, the outer arc surface and the inner conical surface of the memory alloy sleeve are tightly fitted to achieve the sealing function." Although the above patent can fix the sleeve, the external pipe at the connection is not fixed, and shaking may occur during connection, resulting in unstable connection. Therefore, in view of the above shortcomings, a connection assembly for aviation hydraulic pipelines is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a connection assembly for aviation hydraulic pipelines, aiming to improve the problem in the prior art that the pipeline outside the connection is not fixed, which may cause shaking during connection, resulting in unstable connection.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A connection assembly for aviation hydraulic pipelines, comprising a connection ring, wherein extension rings are fixedly connected to the inside of the left and right sides of the connection ring, a plurality of cavities are opened inside the left and right sides of the connection ring, two fixing columns are fixedly connected to the inside of the cavities, a spring is sleeved on the outside of the fixing columns, a limit plate is slidably connected to the outside of the two fixing columns, a pull plate is fixedly connected to one side of the limit plate, a rubber plate is fixedly connected to the other side of the limit plate, a sealing ring is arranged in the middle of the connection ring, and a plurality of telescopic assemblies are arranged inside the connection ring.

[0008] Furthermore, one end of the spring 1 is fixedly connected to the top of the cavity 1, and the other end of the spring 1 is fixedly connected to one side of the limiting plate.

[0009] Furthermore, the outside of the limiting plate is slidably connected to the inner wall of the cavity one, the outside of the pulling plate is slidably connected to the inside of the cavity one, and the outside of the pulling plate is slidably connected to the external through hole of the connecting ring.

[0010] Furthermore, the telescopic assembly includes a cavity 2, a pull rod and two springs 2, the cavity 2 is opened inside the connecting ring, the outside of the pull rod is slidably connected to the inside of the cavity 2, one end of the spring 2 is fixedly connected to the top of the cavity 2, and the other end of the spring 2 is fixedly connected to the bottom of the pull rod.

[0011] Furthermore, a clamping plate is fixedly connected to the bottom of the pull rod, a plurality of clamping grooves are provided on the outside of the sealing ring, and the outside of the clamping plate is clamped with the inner wall of the clamping groove.

[0012] Furthermore, the interior of the left extension ring is slidably connected to a connecting pipe 1, and the interior of the right extension ring is slidably connected to a connecting pipe 2, and the right side of the connecting pipe 1 is threadedly connected to the left side of the connecting pipe 2.

[0013] Furthermore, the outside of the rubber plate on the left side contacts the outside of the connecting pipe 1, and the outside of the rubber plate on the right side contacts the outside of the connecting pipe 2.

[0014] Furthermore, the outside of the pull rod is slidably connected to the outer through hole of the connecting ring, and the outside of the rubber plate is slidably connected to the bottom through hole of the connecting ring.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, through the cooperation of the connecting ring, the extension ring, the cavity 1, the fixing column, the spring 1, the limit plate, the pull plate, the rubber plate and other structures, the auxiliary fixation of the connecting pipe 1 and the connecting pipe 2 after connection is realized to prevent shaking during connection.

[0017] 2. In the utility model, the sealing ring is quickly disassembled through the cooperation of the connecting ring, the sealing ring, the second cavity, the pull rod, the second spring, the clamping plate, the clamping groove and other structures, so as to facilitate the maintenance and installation of the sealing ring in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a stereoscopic diagram of a connection assembly for aviation hydraulic pipelines proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a cavity of a connection assembly for an aviation hydraulic pipeline proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of a connecting ring structure of a connecting assembly for an aviation hydraulic pipeline proposed by the utility model;

[0021] Figure 4 The utility model is a schematic diagram of the internal structure of the second cavity of a connecting assembly for aviation hydraulic pipelines.

[0022] Legend:

[0023] 1. Connecting ring; 2. Extension ring; 3. Cavity 1; 4. Fixed column; 5. Spring 1; 6. Limit plate; 7. Pull plate; 8. Rubber plate; 9. Sealing ring; 10. Cavity 2; 11. Pull rod; 12. Spring 2; 13. Clamping plate; 14. Clamping groove; 15. Connecting pipe 1; 16. Connecting pipe 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-2The utility model provides an embodiment: a connection assembly for aviation hydraulic pipelines, including a connection ring 1, firstly, the connection ring 1 is placed in a suitable position, and the left and right sides of the connection ring 1 are fixedly connected with extension rings 2, and the left and right sides of the connection ring 1 are provided with a plurality of cavities 3, and the interior of the cavity 3 is fixedly connected with two fixing columns 4, and the outside of the fixing column 4 is provided with a spring 5, at this time, the spring 5 will be compressed due to its own elastic properties when compressed and absorb external force and generate reaction force to the limit plate 6, the outside of the two fixing columns 4 is slidably connected with the limit plate 6, and the limit plate 6 will slide along the outside of the fixing column 4 when moving, and one end of the spring 5 is fixedly connected to the top of the cavity 3.

[0026] The outside of the limiting plate 6 is slidably connected to the inner wall of the cavity 3, and the other end of the spring 5 is fixedly connected to one side of the limiting plate 6. The limiting plate 6 can limit the spring 5 to prevent it from falling off. One side of the limiting plate 6 is fixedly connected to a pull plate 7, and the outside of the pull plate 7 is slidably connected to the inside of the cavity 3. The outside of the pull plate 7 is slidably connected to the external through hole of the connecting ring 1. The other side of the limiting plate 6 is fixedly connected to a rubber plate 8, and the outside of the rubber plate 8 is slidably connected to the bottom through hole of the connecting ring 1. The rubber plate 8 pushes the limiting plate 6 outward to make it slide on the outside of the fixed column 4.

[0027] Reference Figure 3 A sealing ring 9 is provided in the middle of the connecting ring 1, and the sealing ring 9 is placed inside the connecting ring 1. A plurality of telescopic components are provided inside the connecting ring 1, and the telescopic components include a cavity 10, a pull rod 11 and two springs 12. The pull rod 11 is pulled outward at the same time. The cavity 10 is opened inside the connecting ring 1, and the outside of the pull rod 11 is slidably connected to the inside of the cavity 10. The outside of the pull rod 11 is slidably connected to the external through hole of the connecting ring 1. Under the pulling of the pull rod 11, the spring 12 is compressed inside the cavity 10, and one end of the spring 12 is fixedly connected to the cavity 10. The top of 10, spring 2 12 absorbs external force when compressed due to its own elastic properties, the other end of spring 2 12 is fixedly connected to the bottom of the pull rod 11, the bottom of the pull rod 11 is fixedly connected with a clamping plate 13, the outside of the sealing ring 9 is provided with a plurality of clamping grooves 14, the outside of the clamping plate 13 is engaged with the inner wall of the clamping groove 14, when the clamping plate 13 is engaged with the clamping groove 14, the pull rod 11 is released, at this time, the spring 2 12 will release the external force absorbed when compressed, so that the clamping plate 13 is tightly engaged with the clamping groove 14, thereby realizing the rapid disassembly of the sealing ring 9 and facilitating the maintenance and installation of the sealing ring 9 in the later stage.

[0028] Reference Figure 2 and Figure 3The left extension ring 2 is internally slidably connected with a connecting tube 15, and the right extension ring 2 is internally slidably connected with a connecting tube 2 16. The right side of the connecting tube 15 is threadedly connected to the left side of the connecting tube 2 16. Then, the connecting tube 15 and the connecting tube 2 16 are respectively placed in the extension ring 2. The outside of the left rubber plate 8 is in contact with the outside of the connecting tube 15, and the outside of the right rubber plate 8 is in contact with the outside of the connecting tube 2 16. When the connecting tube 15 and the connecting tube 2 16 enter the interior of the extension ring 2, they will squeeze the rubber plate 8, so that the rubber plate 8 is in closer contact with the connecting tube 15 and the connecting tube 2 16. Then, the connecting tube 15 and the connecting tube 2 16 are threadedly connected. The rubber plate 8 can keep the connecting tube 15 and the connecting tube 2 16 stable to prevent shaking, and provide auxiliary fixation for the connecting tube 15 and the connecting tube 2 16 after connection to prevent shaking during connection.

[0029] Working principle: first, place the connecting ring 1 to a suitable position, put the sealing ring 9 into the connecting ring 1, and pull the pull rod 11 outward at the same time. Under the pull of the pull rod 11, the spring 2 12 is compressed inside the cavity 2 10. The spring 2 12 absorbs external force during compression due to its own elastic properties. When the clamping plate 13 and the clamping slot 14 are engaged, release the pull rod 11. At this time, the spring 2 12 will release the external force absorbed during compression, so that the clamping plate 13 and the clamping slot 14 are tightly engaged. Then, the connecting pipe 15 and the connecting pipe 2 16 are respectively placed in the extension ring 2. When the connecting tube 1 15 and the connecting tube 2 16 enter the interior of the extension ring 2, they will squeeze the rubber sheet 8. At this time, the rubber sheet 8 pushes the limit plate 6 outward to make it slide outside the fixed column 4. At this time, the spring 1 5 will be compressed. Due to its own elastic characteristics, it absorbs external force when compressed and generates a reaction force on the limit plate 6, so that the rubber sheet 8 is in closer contact with the connecting tube 1 15 and the connecting tube 2 16. Then, the connecting tube 1 15 and the connecting tube 2 16 are threadedly connected. The rubber sheet 8 can keep the connecting tube 1 15 and the connecting tube 2 16 stable to prevent shaking.

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

Claims

1. A connection assembly for an aviation hydraulic pipeline, comprising a connection ring (1), Features: The left and right sides of the connecting ring (1) are fixedly connected to the inside with an extension ring (2), the left and right sides of the connecting ring (1) are opened with a plurality of cavities (3), the inside of the cavity (3) is fixedly connected with two fixing columns (4), the outside of the fixing column (4) is sleeved with a spring (5), the outside of the two fixing columns (4) is slidably connected with a limit plate (6), one side of the limit plate (6) is fixedly connected with a pull plate (7), the other side of the limit plate (6) is fixedly connected with a rubber plate (8), a sealing ring (9) is arranged in the middle of the connecting ring (1), and a plurality of telescopic components are arranged inside the connecting ring (1).

2. A connection assembly for aviation hydraulic pipelines according to claim 1, Features: One end of the spring one (5) is fixedly connected to the top of the cavity one (3), and the other end of the spring one (5) is fixedly connected to one side of the limiting plate (6).

3. A connection assembly for aviation hydraulic pipelines according to claim 1, Features: The outside of the limit plate (6) is slidably connected to the inner wall of the cavity one (3), the outside of the pull plate (7) is slidably connected to the inside of the cavity one (3), and the outside of the pull plate (7) is slidably connected to the external through hole of the connecting ring (1).

4. A connection assembly for aviation hydraulic pipelines according to claim 1, Features: The telescopic assembly comprises a cavity 2 (10), a pull rod (11) and two springs 2 (12); the cavity 2 (10) is opened inside the connecting ring (1); the outside of the pull rod (11) is slidably connected to the inside of the cavity 2 (10); one end of the spring 2 (12) is fixedly connected to the top of the cavity 2 (10); and the other end of the spring 2 (12) is fixedly connected to the bottom of the pull rod (11).

5. A connection assembly for aviation hydraulic pipelines according to claim 4, Features: A clamping plate (13) is fixedly connected to the bottom of the pull rod (11), a plurality of clamping grooves (14) are provided on the outside of the sealing ring (9), and the outside of the clamping plate (13) is clamped with the inner wall of the clamping groove (14).

6. A connection assembly for aviation hydraulic pipelines according to claim 1, Features: The left extension ring (2) is internally slidably connected to a connecting pipe 1 (15), and the right extension ring (2) is internally slidably connected to a connecting pipe 2 (16), and the right side of the connecting pipe 1 (15) is threadedly connected to the left side of the connecting pipe 2 (16).

7. A connection assembly for aviation hydraulic pipelines according to claim 6, Features: The outside of the rubber plate (8) on the left side contacts the outside of the connecting pipe 1 (15), and the outside of the rubber plate (8) on the right side contacts the outside of the connecting pipe 2 (16).

8. A connection assembly for aviation hydraulic pipelines according to claim 4, Features: The outside of the pull rod (11) is slidably connected to the outer through hole of the connecting ring (1), and the outside of the rubber plate (8) is slidably connected to the bottom through hole of the connecting ring (1).

Images