Metal lining for aero-engine conduit

Abstract

The utility model relates to the field of metal linings for aero-engine conduits, in particular to a metal lining for an aero-engine conduit, which comprises a conduit body, two lining pipes are arranged on the outer surface of the conduit body, a fixing groove is formed in the outer surface of each lining pipe, slots are formed in the left end and the right end of each lining pipe, and the inserting grooves are formed in the left end and the right end of each lining pipe. The inner wall of each inserting groove is connected with an inserting plate in an inserted mode, fixing rings are arranged on the two sides of the guide pipe body, the ends, close to each other, of the two fixing rings are fixedly connected with the two corresponding inserting plates, the guide pipe body is sleeved with the two lining pipes, then the two inserting plates on the two fixing rings are inserted along the corresponding inserting grooves, and in the process, the inserting plates on the two lining pipes are inserted into the corresponding inserting grooves. When the two lining pipes are installed and fixed, the elastic hook plates slide in along the corresponding hook grooves until the elastic hook plates are connected with the corresponding hook grooves in a clamped mode, so that the two lining pipes are fixed, and then the effect that the two lining pipes can be rapidly installed and fixed through the fixing rings is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal bushings for aviation engine ducts, in particular to a metal bushing for aviation engine ducts. Background Art

[0002] An aircraft engine, also known as an airplane engine, is a device that converts the thermal energy of fuel or other forms of energy into mechanical energy to provide power for aircraft such as airplanes and helicopters. It is a highly complex and precise thermal machinery that provides the power required for aircraft to fly. There are two main types of aircraft engines: piston and jet. Piston engines can be divided into liquid-cooled and air-cooled types; jet engines can be divided into air jet engines and rocket engines. As the heart of an aircraft, the aircraft engine is known as the "flower of industry" and directly affects the performance, reliability and economy of the aircraft. It is an important manifestation of a country's scientific, industrial and national defense strength.

[0003] In the valve application field, the bushing that acts as a gasket is inside the valve cover and is generally made of corrosion-resistant materials such as polytetrafluoroethylene or graphite for sealing.

[0004] The existing bushing tube cannot be installed quickly during the process of wrapping and protecting the aircraft engine duct, which affects the installation speed. It also cannot provide long-term sealing protection for the duct. Moreover, it is easy to be used for a long time and it is difficult to disassemble the duct when repairing or replacing the duct.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0006] In view of the above background technology, the prior art has the problem that the bushing pipe cannot be quickly installed and fixed.

[0007] The utility model discloses a metal bushing for an aircraft engine duct, comprising a duct body, wherein the outer surface of the duct body is provided with two bushing tubes, the outer surface of each bushing tube is provided with a fixing groove, the left and right ends of each bushing tube are provided with a slot, the inner wall of each slot is plugged with a plug plate, fixing rings are provided on both sides of the duct body, the ends of the two fixing rings close to each other are fixedly connected to the corresponding two plug plates, the ends of the two fixing rings close to each other are fixedly connected with two elastic hook plates, and the ends of the two fixing rings away from each other are provided with a placement groove.

[0008] Furthermore, the outer surface of each bushing tube is provided with two hook grooves, and the outer surface of each elastic hook plate is engaged with the corresponding hook groove.

[0009] Furthermore, a first slide groove and a second slide groove are provided on the outer surface of the catheter body, and two first clamping plates are slidably connected to the inner wall of the first slide groove.

[0010] Furthermore, the inner wall of each of the bushing tubes is provided with a third sliding groove and a fourth sliding groove, and the outer surface of each of the first clamping plates is slidably connected to the corresponding third sliding groove.

[0011] Furthermore, two second clamping plates are slidably connected to the inner wall of the second sliding groove, and the outer surface of each of the second clamping plates is slidably connected to the corresponding fourth sliding groove.

[0012] Furthermore, the inner wall of each bushing tube is provided with a first clamping groove and a second clamping groove, and the inner wall of each of the first clamping groove and the second clamping groove is fixedly connected with the corresponding third sliding groove and fourth sliding groove.

[0013] Furthermore, the outer surface of each of the first card boards is fixedly connected to a first card block, the outer surface of each of the second card boards is fixedly connected to a second card block, the outer surface of each of the first card blocks is engaged with the corresponding first card slot, and the outer surface of each of the second card blocks is engaged with the corresponding second card slot.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model is provided with a bushing tube, a catheter body, a fixing groove, a fixing ring, an insert plate, an elastic hook plate, a hook groove and other components. The two bushing tubes are sleeved on the catheter body, and then the two insert plates on the two fixing rings are inserted along the corresponding slots. During this process, the elastic hook plate will slide into the corresponding hook groove until the elastic hook plate is engaged with the corresponding hook groove, thereby completing the fixation of the two bushing tubes, thereby achieving the effect that the device can quickly install and fix the two bushing tubes through the fixing ring.

[0016] 2. The utility model sets up the first clamp, the second clamp, the first slide groove, the second slide groove, the third slide groove, the fourth slide groove and other components, and slides the first clamp and the second clamp along the corresponding third slide groove and the fourth slide groove. During the installation of the two bushing tubes, the first clamp and the second clamp will be clamped into the corresponding first slide groove and the second slide groove, thereby achieving the effect that the device can prevent the bushing tube and the catheter body from sliding relative to each other through the first clamp and the second clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the catheter body of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fixing ring of the utility model;

[0021] Figure 4 This is a schematic diagram of the first card structure of the utility model.

[0022] In the figure: 1. catheter body; 2. bushing tube; 3. fixing groove; 4. slot; 5. plug plate; 6. fixing ring; 7. elastic hook plate; 8. hook groove; 9. first slide groove; 10. second slide groove; 11. first clamping plate; 12. second clamping plate; 13. placement groove; 14. third slide groove; 15. fourth slide groove; 16. first clamping slot; 17. second clamping slot; 18. first clamping block; 19. second clamping block. DETAILED DESCRIPTION

[0023] The following will disclose multiple embodiments of the present invention with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The utility model discloses a metal bushing for an aero-engine duct, comprising a duct body 1. Two bushing tubes 2 are arranged on the outer surface of the duct body 1. The two bushing tubes 2 have the same specifications. A fixing groove 3 is provided on the outer surface of each bushing tube 2. The setting of the fixing groove 3 can prevent the bushing tube 2 from slipping after being installed in the engine. A slot 4 is provided at both ends of each bushing tube 2. A plug-in plate 5 is inserted into the inner wall of each slot 4. The slot 4 can be plugged and fixed by the plug-in plate 5. Fixing rings 6 are provided on both sides of the duct body 1. The plug plate 5 carried by the fixing ring 6 can fix the two bushing tubes 2, the ends of the two fixing rings 6 close to each other are fixedly connected to the corresponding two plug plates 5, the ends of the two fixing rings 6 close to each other are fixedly connected to two elastic hook plates 7, and the ends of the two fixing rings 6 away from each other are provided with placement grooves 13. Specifically, the two bushing tubes 2 are first put on the catheter body 1, and then the two fixing rings 6 are inserted from both ends of the overlapping bushing tubes 2 until the plug plate 5 is plugged into the corresponding slot 4, and the two bushing tubes 2 can be installed at this time.

[0025] In this embodiment, two hook grooves 8 are provided on the outer surface of each bushing tube 2, and the outer surface of each elastic hook plate 7 is engaged with the corresponding hook groove 8. Specifically, during the installation of the fixing ring 6, the elastic hook plate 7 will slide along the corresponding hook groove 8 until the elastic hook plate 7 is engaged with the corresponding hook groove 8, thereby completing the quick fixation of the fixing ring 6.

[0026] like Figure 2 , Figure 3 , Figure 4 As shown, the outer surface of the catheter body 1 is provided with a first slide groove 9 and a second slide groove 10 , and the inner wall of the first slide groove 9 is slidably connected to two first clamping plates 11 . Specifically, the first slide groove 9 and the second slide groove 10 are respectively located at two ends of the catheter body 1 .

[0027] In this embodiment, the inner wall of each bushing tube 2 is provided with a third slide groove 14 and a fourth slide groove 15, each third slide groove 14 is connected to the first slide groove 9, and the outer surface of each first clamping plate 11 is slidably connected to the corresponding third slide groove 14. Specifically, the first clamping plate 11 can slide in the third slide groove 14.

[0028] In this embodiment, two second clips 12 are slidably connected to the inner wall of the second slide groove 10, and the outer surface of each second clip 12 is slidably connected to the corresponding fourth slide groove 15. Specifically, the second clip 12 can slide in the second slide groove 10. When installing the second clip 12, first slide the second clip 12 along the fourth slide groove 15 and insert the second clip 12 into the second slide groove 10.

[0029] In this embodiment, the inner wall of each bushing tube 2 is provided with a first card groove 16 and a second card groove 17, and the inner wall of each first card groove 16 and second card groove 17 is fixedly connected with the corresponding third slide groove 14 and fourth slide groove 15. Specifically, the first card groove 16 is connected with two third slide grooves 14, and the second card groove 17 is connected with the fourth slide groove 15.

[0030] In this embodiment, a first clamping block 18 is fixedly connected to the outer surface of each first clamping plate 11, and the first clamping block 18 is a T-shaped block. A second clamping block 19 is fixedly connected to the outer surface of each second clamping plate 12. The outer surface of each first clamping block 18 is clamped with the corresponding first clamping groove 16. The first clamping plate 11 can be limited by the clamping of the first clamping block 18 with the first clamping groove 16. The outer surface of each second clamping block 19 is clamped with the corresponding second clamping groove 17. The second clamping plate 12 can be limited by the clamping of the second clamping block 19 with the second clamping groove 17. Specifically, the first clamping plate 11 is slid into the corresponding third slide groove 14 until the first clamping block 18 is clamped with the corresponding first slide groove 16, and then the second clamping plate 12 is slid into the corresponding fourth slide groove 15 until the second clamping block 19 is clamped with the corresponding second slide groove 17, and the first clamping plate 11 and the second clamping plate 12 are fixed by fixing the two bushing tubes 2.

[0031] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A metal bushing for an aircraft engine duct, comprising a duct body (1), characterized in that: The outer surface of the catheter body (1) is provided with two bushing tubes (2), and the outer surface of each bushing tube (2) is provided with a fixing groove (3). The left and right ends of each bushing tube (2) are provided with a slot (4), and the inner wall of each slot (4) is plugged with a plug plate (5). The two sides of the catheter body (1) are provided with fixing rings (6), and the ends of the two fixing rings (6) close to each other are fixedly connected to the corresponding two plug plates (5), and the ends of the two fixing rings (6) close to each other are fixedly connected to two elastic hook plates (7), and the ends of the two fixing rings (6) away from each other are provided with a placement groove (13).

2. The metal bushing for an aircraft engine duct according to claim 1, characterized in that: The outer surface of each bushing tube (2) is provided with two hook grooves (8), and the outer surface of each elastic hook plate (7) is engaged with the corresponding hook groove (8).

3. The metal bushing for an aircraft engine duct according to claim 1, characterized in that: The outer surface of the catheter body (1) is provided with a first sliding groove (9) and a second sliding groove (10), and the inner wall of the first sliding groove (9) is slidably connected to two first clamping plates (11).

4. The metal bushing for an aircraft engine duct according to claim 3, characterized in that: The inner wall of each bushing tube (2) is provided with a third sliding groove (14) and a fourth sliding groove (15), and the outer surface of each first clamping plate (11) is slidably connected to the corresponding third sliding groove (14).

5. The metal bushing for an aircraft engine duct according to claim 4, characterized in that: Two second clamping plates (12) are slidably connected to the inner wall of the second sliding groove (10), and the outer surface of each second clamping plate (12) is slidably connected to the corresponding fourth sliding groove (15).

6. The metal bushing for an aircraft engine duct according to claim 5, characterized in that: The inner wall of each bushing tube (2) is provided with a first clamping groove (16) and a second clamping groove (17), and the inner wall of each first clamping groove (16) and second clamping groove (17) is fixedly connected to the corresponding third slide groove (14) and fourth slide groove (15).

7. The metal bushing for an aircraft engine duct according to claim 6, characterized in that: The outer surface of each first card plate (11) is fixedly connected to a first card block (18), the outer surface of each second card plate (12) is fixedly connected to a second card block (19), the outer surface of each first card block (18) is snap-fitted to a corresponding first card slot (16), and the outer surface of each second card block (19) is snap-fitted to a corresponding second card slot (17).

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