An aeroengine fuel line connection device

Abstract

The utility model relates to fuel pipe connecting device field discloses an aero-engine fuel pipeline connecting device, including first fuel pipe and second fuel pipe, be provided with connecting mechanism between first fuel pipe and second fuel pipe, the connecting mechanism includes connecting block, the outer wall of first fuel pipe and second fuel pipe close connecting block center one side all slidingly connected with connecting ring, two connecting ring away from connecting block center one side all fixedly connected with a plurality of limit block, a plurality of limit block close connecting block center one side all fixedly connected with fixed block. In the utility model, the reliable connection of first fuel pipe and second fuel pipe is realized through the cooperation of connecting ring and connecting block, and with the help of the fastening structure of mounting block and bolt, the connecting ring is prevented from loosening or accidental separation under long-term high-frequency vibration, thereby ensuring the stable connection of the whole, guaranteeing the continuity and safety of fuel delivery.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel pipe connection devices, and in particular to a fuel pipe connection device for an aircraft engine. Background Technology

[0002] In modern aero-engine systems, fuel lines play a crucial role in transporting fuel from the fuel tank to the combustion chamber. Due to the extreme working environment of aero-engines, high temperature, high pressure, high frequency vibration, and complex mechanical stress place extremely stringent requirements on the connection of fuel lines. Therefore, the performance of the connection device is directly related to the working stability and safety of the engine. Its main function is to ensure the stable and leak-free delivery of fuel under high pressure, high temperature, and high frequency vibration conditions.

[0003] Traditional connection devices, when subjected to long-term, high-frequency, and severe vibrations of aero engines, can cause the connecting ring and connecting block to loosen, resulting in reduced stability and safety of the fuel line connection. Furthermore, the relatively simple sealing structure of traditional devices allows fuel to leak from the gaps between the two fuel lines, affecting fuel transfer efficiency.

[0004] Therefore, those skilled in the art have provided an aircraft engine fuel line connection device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a fuel pipeline connection device for aircraft engines. The device achieves a reliable connection between the first fuel pipeline and the second fuel pipeline through the cooperation of the connecting ring and the connecting block. The fastening structure of the mounting block and bolts prevents the connecting ring from loosening or accidentally dislodging under long-term high-frequency vibration, thereby ensuring the overall connection is stable and guaranteeing the continuity and safety of fuel delivery.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An aircraft engine fuel line connection device includes a first fuel line and a second fuel line. A connection mechanism is provided between the first fuel line and the second fuel line. The connection mechanism includes a connecting block. Connecting rings are slidably connected to the outer walls of the first fuel line and the second fuel line near the center of the connecting block. Multiple limiting blocks are fixedly connected to the sides of the two connecting rings away from the center of the connecting block. Fixing blocks are fixedly connected to the sides of the multiple limiting blocks near the center of the connecting block. Mounting blocks are fixedly connected to the sides of the multiple fixing blocks near the center of the connecting block. Bolts are provided on the inner walls of adjacent mounting blocks. Stop blocks are fixedly connected to the outer walls of the first fuel line and the second fuel line near the center of the connecting block. Placement grooves are provided on both sides of the connecting block. The above technical solution connects the first and second fuel lines through the cooperation of the connecting ring and the connecting block. The cooperation of the mounting block and the bolts effectively prevents the connecting ring from loosening or accidentally detaching from the connecting block under long-term high-frequency vibration, ensuring the stability of the entire connection structure and guaranteeing the connection stability and safety of fuel delivery.

[0007] Furthermore, the first fuel pipe and the second fuel pipe are fitted to the connecting block on the side near the center of the connecting block, and rubber plugs are provided on both sides of the inner wall of the connecting block; The above technical solution provides reliable sealing performance for the pipeline by setting rubber gaskets, which helps to prevent fuel leakage at the interface and ensures the safe operation of the fuel transmission system.

[0008] Furthermore, the two connecting rings are threadedly connected to the placement groove on the side near the center of the connecting block; The above technical solution achieves a firm fixation between the connecting ring and the placement groove, ensuring that relative displacement or loosening does not easily occur under external force.

[0009] Furthermore, both sides of the plurality of bolts are threadedly connected to the mounting block; The above technical solutions effectively prevent the connecting ring from loosening or detaching under vibration, ensuring the long-term stability of the connection.

[0010] Furthermore, the outer walls of both rubber plugs are in contact with the inner walls of the first fuel pipe and the second fuel pipe; The above technical solutions reduce the impact of vibration on the connection structure and prevent sealing failure or loosening of the connection due to vibration.

[0011] Furthermore, the side of each of the two stops furthest from the center of the connecting block is in contact with the inner wall of the connecting ring; The above technical solutions enhance the stability and reliability of the connection, effectively preventing loosening.

[0012] Furthermore, both sides of the plurality of bolts penetrate the mounting block to the outside of the mounting block; The above technical solution facilitates the use of tools for fastening operations, improving the fastening effect and the stability of the overall connection.

[0013] This utility model has the following beneficial effects: 1. The present invention proposes an aircraft engine fuel pipeline connection device, which can connect the first fuel pipe and the second fuel pipe through the cooperation of the connecting ring and the connecting block. Through the cooperation of the mounting block and the bolt, the connecting ring is effectively prevented from loosening or accidentally separating from the connecting block under long-term high-frequency vibration environment, ensuring the stability of the entire connection structure and ensuring the connection stability and safety of fuel transportation. The rubber gasket provided provides reliable sealing performance for the pipeline, which helps to prevent fuel leakage and ensures the safe operation of the fuel transmission system. Attached Figure Description

[0014] Figure 1 This is an isometric view of an aircraft engine fuel line connection device proposed in this utility model; Figure 2 This is a partial structural schematic diagram of an aero-engine fuel pipeline connection device proposed in this utility model; Figure 3 This is a front sectional view of an aircraft engine fuel line connection device proposed in this utility model; Figure 4 This is a partial exploded view of an aircraft engine fuel pipeline connection device proposed in this utility model; Figure 5 This is an exploded view of an aircraft engine fuel pipeline connection device proposed in this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Connecting mechanism; 101. Connecting block; 102. Connecting ring; 103. Limiting block; 104. Fixing block; 105. Mounting block; 106. Bolt; 107. Stop block; 108. Placement groove; 2. First fuel line; 3. Second fuel line; 4. Rubber stopper. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides a specific implementation method: A fuel line connection device for an aircraft engine includes a first fuel line 2 and a second fuel line 3. A connection mechanism 1 is provided between the first fuel line 2 and the second fuel line 3. The connection mechanism 1 includes a connection block 101. A connection ring 102 is slidably connected to the outer wall of the first fuel line 2 and the second fuel line 3 on the side near the center of the connection block 101. Multiple limiting blocks 103 are fixedly connected to the side of the two connection rings 102 away from the center of the connection block 101. Fixing blocks 104 are fixedly connected to the side of the multiple limiting blocks 103 near the center of the connection block 101. Mounting blocks 105 are fixedly connected to the side of the multiple fixing blocks 104 near the center of the connection block 101. Bolts 106 are provided on the inner wall of adjacent mounting blocks 105. Stop blocks 107 are fixedly connected to the outer wall of the first fuel line 2 and the second fuel line 3 on the side near the center of the connection block 101. Placement grooves 108 are provided on both sides of the edge of the connection block 101. The first fuel pipe 2 and the second fuel pipe 3 can be connected by the cooperation of the connecting ring 102 and the connecting block 101. The cooperation of the mounting block 105 and the bolt 106 effectively prevents the connecting ring 102 from loosening or accidentally separating from the connecting block 101 under long-term high-frequency vibration environment, ensuring the stability of the entire connection structure and guaranteeing the connection stability and safety of fuel delivery.

[0018] Reference Figure 3 , Figure 4 and Figure 5 The first fuel pipe 2 and the second fuel pipe 3 are attached to the connecting block 101 on the side near the center of the connecting block 101. Rubber plugs 4 are provided on both sides of the inner wall of the connecting block 101. The rubber gaskets provide reliable sealing performance for the pipes, which helps to prevent fuel leakage at the interface and ensure the safe operation of the fuel transmission system. The two connecting rings 102 are threaded to the placement groove 108 on the side near the center of the connecting block 101, so as to achieve a firm fixation between the connecting rings 102 and the placement groove 108, ensuring that they are not prone to relative displacement or loosening under external force. Multiple bolts 106 are threaded to the mounting block 105 on both sides, effectively preventing the connecting ring 102 from loosening or detaching under vibration, ensuring the long-term stability of the connection. The outer walls of the two rubber plugs 4 are in contact with the inner walls of the first fuel pipe 2 and the second fuel pipe 3, reducing the impact of vibration on the connection structure and preventing seal failure or loosening due to vibration. The side of the two stops 107 away from the center of the connecting block 101 is in contact with the inner wall of the connecting ring 102, enhancing the stability and reliability of the connection and effectively preventing loosening. Multiple bolts 106 penetrate the mounting block 105 on both sides to the outside of the mounting block 105, facilitating tightening operations with tools and improving the tightening effect and the overall stability of the connection.

[0019] Working principle: When using this connecting device, the user first places the first fuel pipe 2 and the second fuel pipe 3 into the pre-reserved slots in the connecting block 101. At this time, the rubber gasket fits tightly against the inner walls of the two fuel pipes, forming a reliable initial seal, effectively preventing fuel leakage and ensuring the safe operation of the fuel transmission system. Then, the connecting ring 102 is slid to the outside of the placement groove 108, and then the connecting ring 102 is rotated to screw it into the placement groove 108, achieving a threaded connection with the placement groove 108, thus connecting and fixing the first fuel pipe 2 and the second fuel pipe 3. As the connecting ring 102 moves, the limiting block 103 and its upper structure move towards the center of the connecting block 101. Then, the bolt 106 is passed through the mounting block 105 and tightened to lock the position of the connecting ring 102, preventing the connecting ring 102 from loosening and disconnecting from the connecting block 101 under long-term vibration, ensuring the stability of the entire connecting structure.

[0020] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0021] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0022] 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 specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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. A fuel line connection device for an aircraft engine, comprising a first fuel line (2) and a second fuel line (3), characterized in that: A connecting mechanism (1) is provided between the first fuel pipe (2) and the second fuel pipe (3); The connecting mechanism (1) includes a connecting block (101). A connecting ring (102) is slidably connected to the outer wall of the first fuel pipe (2) and the second fuel pipe (3) on the side near the center of the connecting block (101). Multiple limiting blocks (103) are fixedly connected to the side of the two connecting rings (102) away from the center of the connecting block (101). A fixing block (104) is fixedly connected to the side of the multiple limiting blocks (103) near the center of the connecting block (101). An installation block (105) is fixedly connected to the side of the multiple fixing blocks (104) near the center of the connecting block (101). Bolts (106) are provided on the inner wall of adjacent installation blocks (105). A stop block (107) is fixedly connected to the outer wall of the first fuel pipe (2) and the second fuel pipe (3) near the center of the connecting block (101). Placement grooves (108) are opened on both sides of the connecting block (101).

2. The aircraft engine fuel line connection device according to claim 1, characterized in that: The first fuel pipe (2) and the second fuel pipe (3) are attached to the connecting block (101) on the side near the center of the connecting block (101), and rubber plugs (4) are provided on both sides of the inner wall of the connecting block (101).

3. The aircraft engine fuel line connection device according to claim 1, characterized in that: Both of the connecting rings (102) are threaded to the placement groove (108) on the side near the center of the connecting block (101).

4. The aircraft engine fuel line connection device according to claim 1, characterized in that: Both sides of the bolts (106) are threaded to the mounting block (105).

5. The aircraft engine fuel line connection device according to claim 2, characterized in that: The outer walls of both rubber plugs (4) are in contact with the inner walls of the first fuel pipe (2) and the second fuel pipe (3).

6. The aircraft engine fuel line connection device according to claim 1, characterized in that: The two stops (107) are attached to the inner wall of the connecting ring (102) on the side away from the center of the connecting block (101).

7. The aircraft engine fuel line connection device according to claim 1, characterized in that: The bolts (106) extend through the mounting block (105) to the outside of the mounting block (105) on both sides.

Images