Helicopter tail gas exhaust pipe convenient to clean

Abstract

The utility model belongs to the technical field of helicopters, and particularly relates to a helicopter tail gas discharge pipe convenient to clean, which comprises a helicopter tail gas delivery pipe, a first flange arranged at one end of the helicopter tail gas delivery pipe, a second flange arranged at one end of the helicopter tail gas discharge pipe, and a second flange arranged at the other end of the helicopter tail gas discharge pipe. A fixing bolt is arranged on the inner side of the second flange, a positioning bolt is arranged on the outer ring face of the helicopter tail gas exhaust pipe, an anti-corrosion layer is arranged on the outer surface of the helicopter tail gas exhaust pipe, a limiting groove is formed in the inner surface of the helicopter tail gas exhaust pipe, and an inner exhaust pipe is arranged in the helicopter tail gas exhaust pipe. According to the tail gas discharge pipe of the helicopter, through the arrangement of the limiting groove, the inner discharge pipe and the sliding block, when the tail gas discharge pipe of the helicopter is used, the inner discharge pipe can be disassembled and assembled through the cooperation of the limiting groove and the sliding block, so that the inner discharge pipe is cleaned in a mode of disassembling the inner discharge pipe, and the cleaning convenience of the tail gas discharge pipe of the helicopter is improved through the mode.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopters, in particular to a helicopter tail gas discharge pipe which is easy to clean. Background Art

[0002] During use, the exhaust pipe of a helicopter will accumulate impurities such as dust and oil, which will affect the exhaust emission effect and may even cause blockage. However, existing exhaust pipes are usually complex in structure and difficult to clean, requiring a lot of time and effort.

[0003] The prior art has the following problems:

[0004] 1. In actual use, the existing helicopter exhaust pipe is mostly a single-body structure, so it is inconvenient to clean the helicopter exhaust pipe, thereby reducing the convenience of work;

[0005] 2. When the existing helicopter exhaust pipe is in use, since it is mostly used outdoors, as the service life of the helicopter exhaust pipe increases, the outer surface of the helicopter exhaust pipe will corrode and rust. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a helicopter exhaust pipe that is easy to clean, thereby solving the problem of the inconvenience in cleaning the helicopter exhaust pipe that exists today.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conveniently cleaned helicopter exhaust pipe, comprising a helicopter exhaust delivery pipe, a first flange is arranged at one end of the helicopter exhaust delivery pipe, a helicopter exhaust pipe is arranged on one side of the first flange, a second flange is arranged at one end of the helicopter exhaust pipe, a fixing bolt is arranged on the inner side of the second flange, a positioning bolt is arranged on the outer annular surface of the helicopter exhaust pipe, an anti-corrosion layer is arranged on the outer surface of the helicopter exhaust pipe, a limiting groove is arranged on the inner surface of the helicopter exhaust pipe, an inner exhaust pipe is arranged inside the helicopter exhaust pipe, and a slider is arranged on the outer annular surface of the inner exhaust pipe;

[0008] The anti-corrosion layer comprises a first tough strip and a second tough strip, wherein the first tough strip is embedded in the inner wall of the anti-corrosion layer, and the second tough strip is embedded in one side of the first tough strip.

[0009] As a preferred technical solution of the utility model, the number of the fixing bolts is several groups, and the fixing bolts are equidistantly installed on one side of the second flange.

[0010] As a preferred technical solution of the utility model, the number of the positioning bolts is several groups, and the positioning bolts penetrate the inner wall of the helicopter exhaust pipe and are threadedly connected to the slider.

[0011] As a preferred technical solution of the utility model, the anti-corrosion layer is made of fiberglass, and the anti-corrosion layer is fixedly installed on the outer annular surface of the helicopter exhaust pipe.

[0012] As a preferred technical solution of the utility model, the first toughness strip is made of carbon fiber, the second toughness strip is made of aramid fiber, and the first toughness strip and the second toughness strip are embedded in the anti-corrosion layer in a cross shape.

[0013] As a preferred technical solution of the utility model, the number of the sliders is four groups, the sliders are symmetrically installed on the outer annular surface of the inner discharge pipe, and the sliders are slidably connected to the limiting grooves.

[0014] Compared with the prior art, the utility model provides a helicopter exhaust pipe that is easy to clean and has the following beneficial effects:

[0015] 1. This helicopter exhaust pipe that is easy to clean is provided with a limit groove, an inner exhaust pipe and a slider. When the helicopter exhaust pipe is in use, the inner exhaust pipe can be disassembled and assembled by utilizing the cooperation of the limit groove and the slider, so that the inner exhaust pipe can be removed and cleaned, thereby improving the convenience of cleaning the helicopter exhaust pipe.

[0016] 2. This helicopter exhaust pipe, which is easy to clean, is provided with an anti-corrosion layer, a first tough strip and a second tough strip. During the use of the helicopter exhaust pipe, the anti-corrosion layer can improve the anti-corrosion effect of the outer surface of the helicopter exhaust pipe to prevent the helicopter exhaust pipe from being corroded and rusted by the external environment. The cooperation of the first tough strip and the second tough strip can improve the structural strength of the anti-corrosion layer to avoid cracking during use. In this way, the stability of the use of the helicopter exhaust pipe is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall planar structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the side plan structure of the helicopter exhaust gas delivery pipe of the utility model;

[0020] Figure 4 It is a partial schematic diagram of the planar structure of the first toughness strip and the second toughness strip of the utility model.

[0021] In the figure: 1. helicopter exhaust gas delivery pipe; 2. first flange; 3. helicopter exhaust gas discharge pipe; 4. second flange; 5. fixing bolts; 6. positioning bolts; 7. anti-corrosion layer; 71. first toughness strip; 72. second toughness strip; 8. limiting groove; 9. inner discharge pipe; 91. slide groove. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 In this embodiment: a conveniently cleaned helicopter exhaust pipe comprises a helicopter exhaust pipe 1, a first flange 2 is arranged at one end of the helicopter exhaust pipe 1, a helicopter exhaust pipe 3 is arranged on one side of the first flange 2, a second flange 4 is arranged at one end of the helicopter exhaust pipe 3, a fixing bolt 5 is arranged on the inner side of the second flange 4, a positioning bolt 6 is arranged on the outer ring surface of the helicopter exhaust pipe 3, an anti-corrosion layer 7 is arranged on the outer surface of the helicopter exhaust pipe 3, a limiting groove 8 is arranged on the inner surface of the helicopter exhaust pipe 3, an inner exhaust pipe 9 is arranged inside the helicopter exhaust pipe 3, and a slider 91 is arranged on the outer ring surface of the inner exhaust pipe 9;

[0024] The anti-corrosion layer 7 includes a first tough strip 71 and a second tough strip 72 . The first tough strip 71 is embedded in the inner wall of the anti-corrosion layer 7 , and the second tough strip 72 is embedded on one side of the first tough strip 71 .

[0025] In this embodiment, the number of fixing bolts 5 is several groups, and the fixing bolts 5 are equidistantly installed on one side of the second flange 4. By setting multiple groups of fixing bolts 5, the connection stability between the first flange 2 and the second flange 4 can be improved; the number of positioning bolts 6 is several groups, and the positioning bolts 6 pass through the inner wall of the helicopter exhaust pipe 3 and are threadedly connected to the slider 91. The positioning bolts 6 can be used to limit the slider 91 to prevent the inner exhaust pipe 9 from moving during use, thereby improving the use stability of the inner exhaust pipe 9; the anti-corrosion layer 7 is made of fiberglass, and the anti-corrosion layer 7 is fixedly installed on the outer annular surface of the helicopter exhaust pipe 3. The anti-corrosion layer 7 can be used to improve the anti-corrosion effect of the outer surface of the helicopter exhaust pipe 3; A tough strip 71 is made of carbon fiber, and a second tough strip 72 is made of aramid fiber. The first tough strip 71 and the second tough strip 72 are cross-embedded in the anti-corrosion layer 7. The cooperation between the first tough strip 71 and the second tough strip 72 can improve the structural strength of the anti-corrosion layer 7 and avoid cracking during use. There are four groups of sliders 91. The sliders 91 are symmetrically installed on the outer annular surface of the inner discharge pipe 9. The sliders 91 are slidably connected to the limiting grooves 8. The inner discharge pipe 9 can be disassembled and assembled by the cooperation between the limiting grooves 8 and the sliders 91, so that the inner discharge pipe 9 can be cleaned by removing it. In this way, the cleaning convenience of the helicopter exhaust pipe 3 is improved.

[0026] The working principle and use process of the utility model are as follows: when the operator uses the helicopter exhaust pipe 3, the operator installs the helicopter exhaust pipe 3 on the first flange 2 by means of the cooperation of the fixing bolts 5 and the second flange 4. Then, when the helicopter exhaust pipe 3 is used, the anti-corrosion layer 7 can be used to improve the anti-corrosion effect of the outer surface of the helicopter exhaust pipe 3 to prevent the helicopter exhaust pipe 3 from being corroded and rusted by the external environment. In addition, the cooperation of the first toughness strip 71 and the second toughness strip 72 can be used to improve the structural strength of the anti-corrosion layer 7 to avoid cracking during use. In this way, the helicopter exhaust pipe 3 is improved. The exhaust pipe 3 has stability in use. When the helicopter exhaust pipe 3 needs to be cleaned, the inner exhaust pipe 9 can be disassembled and assembled by utilizing the cooperation between the limiting groove 8 and the slider 91, so that the inner exhaust pipe 9 can be removed for cleaning. In this way, the convenience of cleaning the helicopter exhaust pipe 3 is improved. After the inner exhaust pipe 9 is cleaned, the inner exhaust pipe 9 is installed inside the helicopter exhaust pipe 3 by utilizing the cooperation between the limiting groove 8 and the slider 91, and the slider 91 can be limited by the positioning bolt 6 to prevent the inner exhaust pipe 9 from moving during use, thereby improving the stability of the inner exhaust pipe 9.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A helicopter exhaust pipe that is easy to clean, comprising a helicopter exhaust pipe (1), wherein one end of the helicopter exhaust pipe (1) is provided with a first flange (2), characterized in that: A helicopter exhaust pipe (3) is arranged on one side of the first flange (2), a second flange (4) is arranged on one end of the helicopter exhaust pipe (3), a fixing bolt (5) is arranged on the inner side of the second flange (4), a positioning bolt (6) is arranged on the outer ring surface of the helicopter exhaust pipe (3), an anti-corrosion layer (7) is arranged on the outer surface of the helicopter exhaust pipe (3), a limiting groove (8) is arranged on the inner surface of the helicopter exhaust pipe (3), an inner exhaust pipe (9) is arranged inside the helicopter exhaust pipe (3), and a slider (91) is arranged on the outer ring surface of the inner exhaust pipe (9); The anti-corrosion layer (7) comprises a first tough strip (71) and a second tough strip (72); the first tough strip (71) is embedded in the inner wall of the anti-corrosion layer (7), and the second tough strip (72) is embedded on one side of the first tough strip (71).

2. The helicopter exhaust pipe that is easy to clean according to claim 1 is characterized by: The fixing bolts (5) are provided in a plurality of groups, and the fixing bolts (5) are installed at equal distances on one side of the second flange (4).

3. The helicopter exhaust pipe that is easy to clean according to claim 1 is characterized in that: The number of the positioning bolts (6) is several groups, and the positioning bolts (6) penetrate the inner wall of the helicopter exhaust pipe (3) and are threadedly connected to the slider (91).

4. The helicopter exhaust pipe that is easy to clean according to claim 1 is characterized by: The anti-corrosion layer (7) is made of glass fiber reinforced plastics and is fixedly mounted on the outer annular surface of the helicopter exhaust pipe (3).

5. The helicopter exhaust pipe that is easy to clean according to claim 1 is characterized by: The first toughness strip (71) is made of carbon fiber, and the second toughness strip (72) is made of aramid fiber. The first toughness strip (71) and the second toughness strip (72) are embedded in the anti-corrosion layer (7) in a cross shape.

6. The helicopter exhaust pipe that is easy to clean according to claim 1 is characterized by: The number of the sliding blocks (91) is four groups. The sliding blocks (91) are symmetrically mounted on the outer annular surface of the inner discharge pipe (9). The sliding blocks (91) are slidably connected to the limiting grooves (8).

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