Blanking cover for air inlet channel of aero-engine

Abstract

The utility model relates to the technical field of aviation equipment, and discloses an aero-engine air inlet channel blanking cap which comprises a fixing part, a plugging part and a connecting part, and the fixing part is installed on the outer wall of the end of an air inlet channel; the blocking part is used for blocking the inner wall of the end of the air inlet; the connecting part is used for connecting the fixing part and the plugging part; the fixing part comprises a fixing ring, the plugging part comprises plugging covering cloth and a supporting ring, and the plugging covering cloth is connected to the supporting ring; the connecting part comprises lip covering cloth which is connected with the fixing ring and the supporting ring. The mounting stability of the supporting ring is enhanced by arranging the fixing part, the supporting ring is prevented from rotating in the radial direction or translating in the axial direction of the air inlet channel, the air inlet channel can be prevented from being scratched, and light weight is achieved; by arranging the annular lip covering cloth, sundries can be prevented from being accumulated in a gap where the air inlet channel is in contact with the supporting ring; by arranging the pull ring, a ladder assembly is not required to be erected when dismounting is needed, the dismounting process is simplified, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation equipment technical field, concretely is an aeroengine air inlet duct plug cover. BACKGROUND

[0002] The aircraft usually needs to carry out protection treatment when stopping flying, one of which is to carry out temporary plugging to the engine air inlet duct to ensure that no sundries enter to affect the next flight, the plugging to the aeroengine air inlet duct mainly has two forms: one is the wrapping aeroengine external type cover, the other is the filling aeroengine air inlet duct inner wall type device, for the first kind, although the protection effect is good, and the quality is light, but its volume is big, and the exposed area is much, leading to not easy to clean, for the second kind, although easy to clean, but its installation protection effect and stability are inferior to the first kind, and the plugging place is easy to have accumulated water and sundries, part of the device adds metal parts to improve stability, leading to easy to scratch the air inlet duct and increase the overall weight. CONTENT

[0003] The utility model discloses an aeroengine air inlet duct plug cover, solves the problems of poor installation stability and poor protection effect of the existing inner wall filling air inlet duct plug cover.

[0004] The utility model discloses an aeroengine air inlet duct plug cover, solves the problems of poor installation stability and poor protection effect of the existing inner wall filling air inlet duct plug cover.

[0005] The fixed part is installed on the outer wall of the end part of the air inlet duct.

[0006] The plugging part is used for plugging the inner wall of the end part of the air inlet duct.

[0007] The connecting part is used for connecting the fixed part and the plugging part, the fixed part provides support force for the plugging part through the connecting part, and ensures that the plugging part does not move in the inner wall of the air inlet duct.

[0008] The fixed part includes a fixed ring, the fixed ring is connected with the air inlet duct in interference, the plugging part includes a plugging cover and a supporting ring, the plugging cover is connected with the supporting ring, and the supporting ring is connected with the air inlet duct in interference, and the connecting part includes a lip cover, and the lip cover is connected with the fixed ring and the supporting ring.

[0009] In order to better realize the utility model, further, the connecting part further includes a fixed ring cover and a supporting ring cover, the fixed ring cover covers the fixed ring, and the supporting ring cover covers the supporting ring.

[0010] In order to better realize the utility model, further, the lip cover is annular, the outer circle of the annular is connected with the fixed ring cover, and the inner circle of the annular is connected with the supporting ring cover.

[0011] In order to better realize the utility model, further, the connecting part further comprises a separation pull ring, and the separation pull ring is arranged on the support ring cover.

[0012] In order to better realize the utility model, further, the support ring and the fixed ring are made of elastic material.

[0013] In order to better realize the utility model, further, the support ring is made of EVA foam, and the fixed ring is made of rubber.

[0014] In order to better realize the utility model, further, the support ring and the fixed ring are circular in cross section.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] (1) the utility model discloses a fixed part is arranged to strengthen the stability of the support ring, prevents the support ring from rotating along the radial direction or translating along the axial direction of the air inlet, so as to improve the plugging effect; at the same time, since no metal part is used, the air inlet can be prevented from being scratched, and the whole device can also be lightened;

[0017] (2) the utility model discloses a circular lip cover, which can prevent sundries from accumulating between the gap between the air inlet and the support ring;

[0018] (3) the utility model discloses a pull ring, which need not be set up when being removed, simplifies the dismounting process, and improves the operation efficiency. DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model.

[0020] Figure 2 It is the whole structure sectional view of the utility model.

[0021] Figure 3 It is the installation state structure sectional view of the utility model.

[0022] Figure 4 It is the installation state structure schematic view of the utility model.

[0023] Wherein: 101 - fixed ring cover, 102 - separation pull ring, 103 - lip cover, 104 - plugging cover, 105 - support ring, 106 - fixed ring, 107 - support ring cover, 11 - air inlet. CONCRETE IMPLEMENTATION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] In the description of the present application, it should be noted that, unless explicitly defined and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Embodiment 1

[0027] The present embodiment provides an aero-engine air inlet passage plug cover, specifically as shown in Figures 1-4 , comprising:

[0028] The fixing part is mounted on the outer wall of the end part of the air inlet passage 11.

[0029] The plugging part is used for plugging the inner wall of the end part of the air inlet passage 11.

[0030] The connecting part is used for connecting the fixing part and the plugging part, the fixing part provides support force for the plugging part through the connecting part, and ensures that the plugging part will not move in the inner wall of the air inlet passage 11.

[0031] The fixing part comprises a fixing ring 106, and the fixing ring 106 is in interference connection with the air inlet passage 11; the plugging part comprises a plugging cloth 104 and a supporting ring 105, the plugging cloth 104 is connected to the supporting ring 105, and the supporting ring 105 is in interference connection with the air inlet passage 11; the connecting part comprises a lip cloth 103, and the lip cloth 103 is connected with the fixing ring 106 and the supporting ring 105 respectively. The cloth is selected to be waterproof and wear-resistant, and canvas subjected to waterproof treatment is selected in the present embodiment.

[0032] In use, first set up the ladder, the staff carrying the device along the ladder to the airway near, and then put the support ring 105 into the air inlet 11, at this time the support ring 105 cooperates with the blocking cloth 104 to achieve the blocking of the air inlet 11; Then the staff sets the fixed ring 106 on the outer wall of the air inlet 11, when the outside wind blows to the blocking cloth 104, the support ring 105 is pushed into the air inlet 11 by the force, at this time the force is transmitted to the fixed ring 106 through the lip cloth 103, because there is also a moving resistance between the fixed ring 106 and the air inlet 11, so as to strengthen the stability of the support ring 105, prevent the support ring 105 from rotating along the radial direction or translating along the air inlet 11 axis; At the same time, since no metal parts are used, the air inlet 11 can be prevented from being scratched, and the entire device can also be lightened.

[0033] Embodiment 2:

[0034] This embodiment further extends the connecting part on the basis of the above-mentioned embodiment, as shown in Figures 2-3 The connecting part further comprises a fixed ring cloth 101 and a support ring cloth 107, the fixed ring cloth 101 covers the fixed ring 106, and the support ring cloth 107 covers the support ring 105.

[0035] By setting the fixed ring cloth 101 and the support ring cloth 107, the lip cloth 103 can be connected with the fixed ring cloth 101 and the support ring cloth 107 by sewing, which strengthens the connection strength of the lip cloth 103 with the support ring 105 and the fixed ring 106, and also strengthens the connection strength of the support ring 105 and the blocking cloth 104, without damaging the body of the support ring 105 and the fixed ring 106; At the same time, after the fixed ring cloth 101 and the support ring cloth 107 cover the fixed ring 106 and the support ring 105, the aging speed of the support ring 105 and the fixed ring 106 can be slowed down, and the service life can be prolonged.

[0036] Further, the lip cloth 103 is in the shape of a circular ring, the outer circumference of the circular ring is connected with the fixed ring cloth 101, and the inner circumference of the circular ring is connected with the support ring cloth 107. The circular ring-shaped arrangement of the lip cloth 103 makes it impossible for impurities in the outside world to stay between the gap between the air inlet 11 and the support ring 105, once the impurities fall on the blocking cloth 104 and the support ring 105, they will naturally slide down along the lip cloth 103 under the influence of gravity, and the impurities cannot be accumulated.

[0037] Further, the connecting part further comprises a separation pull ring 102, which is arranged on the support ring cloth 107.

[0038] During installation, ensure that the release ring 102 is at a high point. When it needs to be removed, there is no need to set up a ladder. Simply hook the release ring 102 and pull it. At this time, the release ring 102 is subjected to a downward pulling force, which allows the support ring 105 and the fixing ring 106 to be smoothly removed from the air intake 11, simplifying the disassembly process and improving work efficiency.

[0039] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0040] Example 3:

[0041] This embodiment further extends the above embodiment, wherein both the support ring 105 and the fixing ring 106 are made of elastic materials. Specifically, the support ring 105 is made of EVA foam, and the fixing ring 106 is made of rubber. The elastic fixing ring 106 can be fitted onto the air intake duct 11, providing a stable force for the support ring 105; the elastic support ring 105 ensures that it can completely conform to the inner wall of the air intake duct 11, guaranteeing a sealing effect.

[0042] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0043] Example 4:

[0044] This embodiment further extends the above embodiment, specifically as follows: Figure 3 As shown, the cross-sections of the support ring 105 and the fixing ring 106 are both circular. The circular cross-sections make it easier to sew the fixing ring cover 101 and the support ring cover 107 without needing to fix points, and also result in a higher degree of fit between the fixing ring cover 101 and the support ring cover 107 and the fixing ring 106 and the support ring 105.

[0045] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An air inlet duct plug for an aeroengine, characterised in that, The utility model relates to a kind of air inlet sealing device, including: Fixed part, the fixed part is installed on the outer wall of air inlet (11) end part; Blocking part, the blocking part is used to block the inner wall of air inlet (11) end part; Connecting part, the connecting part is used to connect fixed part and blocking part, and the fixed part provides support force for the blocking part by the connecting part, ensure that blocking part does not move in the inner wall of air inlet (11); The fixed part includes fixed ring (106), and fixed ring (106) is connected with air inlet (11) interference, and the blocking part includes blocking cloth (104), support ring (105), and blocking cloth (104) is connected on the support ring (105), and the support ring (105) is connected with air inlet (11) interference;The connecting part includes lip cloth (103), and lip cloth (103) is connected with fixed ring (106) and support ring (105) respectively.

2. An inlet cowl for an aeroengine according to claim 1, characterised in that: The connecting part further includes fixed ring cloth (101), and support ring cloth (107), and the fixed ring cloth (101) covers the fixed ring (106), and the support ring cloth (107) covers the support ring (105).

3. An inlet cowl for an aeroengine according to claim 2, wherein: The lip cloth (103) is circular ring, and the outer circle of circular ring is connected with the fixed ring cloth (101), and the inner circle of circular ring is connected with the support ring cloth (107).

4. An inlet cowl for an aeroengine according to claim 2 or 3, wherein: The connecting part further includes separation pull ring (102), and the separation pull ring (102) is arranged on the support ring cloth (107).

5. An inlet cowl for a gas turbine engine as set forth in claim 1, characterized in that: The support ring (105) and fixed ring (106) are made of elastic material.

6. An inlet cowl for an aeroengine according to claim 5, wherein: The material of the support ring (105) is EVA bubble cotton, and the material of the fixed ring (106) is rubber.

7. An inlet cowl for a gas turbine engine as set forth in claim 1, characterized in that: The support ring (105) and fixed ring (106) are circular in cross section.

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