Aircraft landing gear protection cover

Abstract

The utility model discloses an aircraft undercarriage protective cover which comprises a cover body, the cover body can receive aircraft wheels of an aircraft undercarriage and assemblies installed between the aircraft wheels, and the front side of the cover body is configured to be capable of being opened along the middle portion; the extension part is arranged in the middle of the top of the cover body and extends upwards, and the extension part is provided with a central symmetry surface which is the same as that of the cover body and is communicated with the internal space of the cover body into a whole; the front side of the extension part can be opened along the middle part, and the top is provided with a top opening close to the front side of the cover body to receive a supporting assembly of an aircraft undercarriage; the zipper assembly is located in the middle of the front side of the cover body and the middle of the front side of the extending part, extends to the top opening of the extending part from the bottom of the cover body and is used for closing the middle of the front side of the cover body and the middle of the front side of the extending part. The aircraft landing gear protective cover is configured such that, in use, the aircraft landing gear protective cover forms an enclosed space that receives at least the wheels of the aircraft landing gear, components mounted between the wheels, and supporting the components.

Description

TECHNICAL FIELD

[0001] The utility model relates to an aircraft landing gear protective cover, especially an aircraft landing gear protective cover for protecting the landing gear from wind and sand in a windy and sandy environment. BACKGROUND

[0002] Based on customer needs, when the aircraft is parked in a windy and sandy area for a long time, the brake device and the landing gear mirror surface part need to be protected to prevent wind and sand from entering the brake device or covering the landing gear mirror surface, to avoid maintenance difficulties and even cause device failure.

[0003] The existing landing gear protective cover only wraps a single tire when wrapping the tire, and the cover cloth of the protective cover is at the equipment installation opening on one side of the wheel. The opening is bonded with magic tape. The existing landing gear protective cover is only used to protect the tire, and does not effectively protect the brake device and the landing gear mirror surface of the landing gear, especially in a windy and sandy environment. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defect that the existing landing gear protective cover cannot effectively protect the landing gear components, especially the brake device and the landing gear mirror surface of the landing gear, in a windy and sandy environment. Therefore, a kind of aircraft landing gear protective cover capable of preventing wind and sand erosion is proposed.

[0005] To solve the above technical problems, the utility model provides an aircraft landing gear protective cover, comprising:

[0006] A cover body is configured to receive the wheels of the aircraft landing gear and the components installed between the wheels, and the front side of the cover body is configured to be opened along the middle part;

[0007] An extension part is arranged in the middle part of the top of the cover body and extends upward. The extension part is configured to have the same central symmetry plane as the cover body and is integrated with the internal space of the cover body. The front side of the extension part is configured to be opened along the middle part, and the top of the extension part has a top opening close to the front side of the cover body to receive the support components of the aircraft landing gear; and

[0008] A zipper assembly is located in the middle part of the front side of the cover body and the extension part, and extends from the bottom of the cover body to the top opening of the extension part. The zipper assembly is configured to close the middle part of the front side of the cover body and the extension part, so that the aircraft landing gear protective cover forms a closed space when in use to receive at least the wheels of the aircraft landing gear, the components installed between the wheels and the support components.

[0009] The utility model discloses a landing gear protective cover which comprises an overall structure, can protect the tires, brakes and mirror surface structure of the landing gear, and in particular can ensure that the landing gear of the aircraft is not damaged by wind and sand when the aircraft is parked for a long time in a windy and sandy environment.

[0010] According to an embodiment of the utility model, the extension part comprises a front extension part extending obliquely forward at the top front side of the cover body and a rear extension part extending obliquely backward at the top rear side of the cover body, the front extension part is configured to receive the support assembly of the aircraft landing gear, and the rear extension part is configured to receive the operating arm assembly of the aircraft landing gear. By arranging the front extension part and the rear extension part, the related assemblies of the aircraft landing gear can be received, and the aircraft landing gear protective cover forms a more closed space to achieve better protection effect.

[0011] According to an embodiment of the utility model, the cover body and the extension part each comprise an inner lining and an outer lining, and the zipper assembly is arranged between the inner lining and the outer lining of the cover body and the extension part. By arranging the zipper assembly between the inner lining and the outer lining of the cover body and the extension part, the zipper assembly can be prevented from being exposed to the windy and sandy environment, and the zipper assembly can be prevented from being damaged by wind and sand entering the gap of the zipper assembly, so that the performance of the zipper assembly is not affected, and the appearance of the aircraft landing gear protective cover is improved. In addition, the inner lining of the cover body and the extension part forms a protection between the zipper assembly and the structure surface of the landing gear assembly, so that the structure surface of the landing gear assembly is prevented from being abraded by the zipper assembly.

[0012] According to an embodiment of the utility model, the front side of the cover body and the front side of the front extension part are each provided with a spaced apart buckle adjusting belt, so as to adjust the size of the aircraft landing gear protective cover and reduce the stress of the zipper assembly. The buckle adjusting belt can adjust the size of the aircraft landing gear protective cover, and reduce the stress of the zipper assembly.

[0013] According to an embodiment of the utility model, the front side of the cover body and the front side of the extension part are each provided with two buckle adjusting belts.

[0014] According to an embodiment of the utility model, the rear extension part is provided with a buckle adjusting belt at a position away from the top opening, so as to adapt to the position change of the support assembly of the aircraft landing gear.

[0015] According to an embodiment of the utility model, the inner side of the bottom of the cover body is provided with an elastic member, and the elastic member is used to tighten the bottom opening of the cover body.

[0016] According to an embodiment of the utility model, the top opening of the extension part comprises an elastic assembly arranged at the outer side of the edge of the top opening, and the elastic assembly comprises a buckle adjusting belt, an elastic band and cloth, so as to tighten the top opening.

[0017] According to an embodiment of the utility model, the top opening of the extension part comprises a collar arranged inside the edge of the top opening, which can ensure better closure of the top opening. When the elastic assembly tightens the top opening of the aircraft landing gear protective cover, the collar can ensure better closure of the top opening of the aircraft landing gear protective cover, preventing wind and sand from blowing into the inside of the landing gear protective cover.

[0018] According to an embodiment of the utility model, the side of the cover body comprises an identification area recording relevant information of the aircraft landing gear protective cover. The product identification area is arranged on the side of the aircraft landing gear protective cover, used for product identification, facilitating collection and use.

[0019] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, i.e. the preferred examples of the utility model are obtained.

[0020] The positive progress effect of the above-mentioned embodiments of the utility model lies in:

[0021] The aircraft landing gear protective cover disclosed by the utility model comprises an overall structure, which can protect the tires, brakes and mirror surface structure of the landing gear, and especially can ensure that the aircraft landing gear is not damaged by wind and sand when the aircraft is parked for a long time in a windy and sandy environment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an isometric view of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0023] Figure 2 It is another isometric view of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0024] Figure 3 It is a side view of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0025] Figure 4 It is a cross-sectional view of the zipper assembly of the aircraft landing gear protective cover according to the embodiment of the utility model, taken along the line A-A in the figure. Figure 3

[0026] Figure 5 It is a schematic view of the elastic member on the bottom inside of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0027] Figure 6 It is a sewing schematic view of the elastic assembly of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0028] Figure 7 ​Sewing diagram of the elastic member and the grommet adjustment belt of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0029] Figure 8 Schematic diagram of the elastic assembly of the aircraft landing gear protective cover according to the embodiment of the utility model, wherein the cloth wraps the elastic member.

[0030] Figure 9 Sectional view of the elastic assembly of the aircraft landing gear protective cover according to the embodiment of the utility model along the line B-B in Figure 8 .

[0031] Figure 10 Sewing diagram of the collar belt of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0032] Figure 11 Schematic diagram of the identification area of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0033] Figure 12 Schematic diagram of the installation of the aircraft landing gear protective cover according to the embodiment of the utility model.

[0034] Explanation of reference signs:

[0035] 1: protective cover

[0036] 2: cover body

[0037] 3: extension

[0038] 3a: front extension

[0039] 3b: rear extension

[0040] 4: bottom opening

[0041] 5: top opening

[0042] 6: front side

[0043] 7: rear side

[0044] 8: side

[0045] 9: zipper assembly

[0046] 9a: zipper

[0047] 9b: zipper engaging teeth

[0048] 10: inner liner

[0049] 11: outer liner

[0050] 12: grommet adjustment belt

[0051] 12a: grommet adjustment belt male end

[0052] 12b: Snap-on adjustment with female buckle end

[0053] 13: Elastic component

[0054] 14: Flexible components

[0055] 15: Fabric

[0056] 16: Wearing a tie

[0057] 17: Sewing thread

[0058] 18: Identification Area

[0059] 19: Protective cover cloth Detailed Implementation

[0060] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The following description is exemplary and not intended to limit the present invention. Any other similar situations also fall within the protection scope of the present invention.

[0061] In the following detailed description, directional terms such as "left," "right," "up," "down," "front," and "back" are used with reference to the directions described in the accompanying drawings. Components of embodiments of this invention can be positioned in a variety of different orientations; the directional terms are for illustrative purposes and not limiting.

[0062] The overall external structure of the aircraft landing gear protective cover of this utility model is as follows: Figure 1 As shown, the protective cover is made of soft fabric and is sewn together from several pieces of fabric. The front center of the cover can be opened and is equipped with a zipper assembly, with lining sewn onto both the inside and outside of the zipper assembly. Multiple buckle adjustment straps are sewn onto the front of the zipper assembly and also onto the upper rear side of the cover. Elastic members are sewn onto both the bottom and top of the cover, with the bottom elastic member sewn onto the inside of the cover and the top elastic member sewn onto the outside. Additionally, a necktie is sewn onto the inside of the top of the cover.

[0063] Specifically, the aircraft landing gear protective canopy 1 includes a canopy 2, an extension 3, and a zipper assembly 9. The canopy 2 is configured to receive the aircraft landing gear wheels and the assembly mounted between the wheels, and the front side of the canopy 2 is configured to open along the center. As an example, such as Figure 2 As shown, the cover 2 may include a semi-cylindrical cover that conforms to the outline of the landing gear and a flat cover that extends vertically downward from the rectangular periphery of the semi-cylindrical cover to the ground to form a bottom opening 4. The front side 6 of the cover 2 opens along the middle to receive the landing gear wheels of the aircraft and the components mounted between the landing gear wheels.

[0064] The extension 3 is arranged in the middle of the top of the cover body 2 and extends upward, so that the extension 3 has the same central symmetry plane as the cover body 2, the extension 3 is in communication with the internal space of the cover body 2 as a whole, the front side of the extension 3 is configured to be opened along the middle part, and the top of the extension has a top opening 5 close to the top of the front side of the cover body to receive the support assembly of the aircraft landing gear. Further, as shown in Figure 3 the extension 3 includes a front extension 3a extending obliquely forward at the front side of the top of the cover body 2 and a rear extension 3b extending obliquely backward at the rear side of the top of the cover body 2, the front extension 3a is configured to receive the support assembly of the aircraft landing gear, such as a shock strut assembly, and the rear extension 3b is configured to receive the actuating arm assembly of the aircraft landing gear, such as a torque arm assembly.

[0065] The cover body 2 and the extension 3 of the aircraft landing gear protective cover 1 are formed by a protective cover cloth 19, which is a red 420D oxford cloth as an example, the cloth has high strength, high chemical resistance and deformation resistance, wear resistance and tear resistance. The outer surface of the protective cover cloth 19 can be coated with a waterproof PU coating, so that the protective cover cloth 19 can effectively block water, sand and other substances from entering the protective cover. The protective cover cloth 19 is sewn by splicing different shapes of cloth, and finally forms a cylindrical structure with a hollow cavity for receiving landing gear wheel, brake device, landing gear mirror structure and other components. The front side of the protective cover is opened to wrap the protected landing gear assembly. The size of the cover cloth of the protective cover has a margin to meet the needs of the aircraft parked for a long time under different weights.

[0066] As shown in Figure 1 the zipper assembly 9 is located in the middle of the front side of the cover body 2 and the extension 3, and extends from the bottom of the cover body 2 to the top opening 5 of the extension. The zipper assembly 9 divides the front side of the cover body 2 and the extension 3 into two parts, and is used to close the middle part of the front side of the cover body 2 and the extension 3, so that the aircraft landing gear protective cover forms a closed space for receiving at least the wheels of the aircraft landing gear, the components installed between the wheels, and the support assembly when in use. As an example, since the plastic material is not easy to damage the aircraft structure, the zipper assembly 9 adopts, for example, a No. 8 plastic zipper, but is not limited thereto.

[0067] Further, the cover body 2 and the extension 3 of the aircraft landing gear protective cover 1 both include an inner lining 10 and an outer lining 11, and the zipper assembly 9 is arranged between the inner lining 10 and the outer lining 11 of the cover body 2 and the extension 3. As shown in Figure 4As shown, the zipper assembly 9 includes a zipper 9a and zipper engaging teeth 9b. The zipper assembly 9 is sewn in the middle of the front side of the protective cover, and on both sides of the middle of the front side of the protective cover, outer and inner linings are sewn, respectively, with a width slightly larger than that of the zipper assembly 9, so that after the zipper assembly is engaged, the zipper assembly 9 is not exposed to the sand and wind environment, preventing sand and wind from entering the gap of the zipper assembly 9 and damaging the zipper 9a, affecting the performance of the zipper assembly, and also increasing the aesthetic appearance of the protective cover. In addition, the inner lining 10 forms a protective layer between the zipper assembly 9a and the landing gear structure contact surface, preventing the zipper assembly 9a from wearing the landing gear structure surface.

[0068] As shown, Figure 1 The front side of the cover body 2 and the front extension 3a of the aircraft landing gear protective cover 1 are each provided with a spaced apart grommet adjustment belt 12 for adjusting the size of the aircraft landing gear protective cover and reducing the stress on the zipper assembly 9. The front side of the cover body 2 and the extension 3 are each provided with two grommet adjustment belts 12. The rear extension 3b is provided with a grommet adjustment belt 12 away from the top opening 5, for adapting to the position change of the support assembly (e.g. torsion arm assembly) of the aircraft landing gear. The grommet adjustment belt is a general part, including male and female buckles sewn to the adjustment belt, respectively, which can be sewn to the protective cover cloth to adjust the size of the protective cover. As shown, Figure 7 The grommet adjustment belt 12 includes a grommet adjustment belt male buckle end 12a and a grommet adjustment belt female buckle end 12b.

[0069] The size of the protective cover cloth 19 is designed with a margin, so that when the aircraft is parked, even if the tire is compressed due to different weights, the movable structure assembly position changes, the protective cover can still completely wrap the protected components of the landing gear. Therefore, four grommet adjustment belts 12 are spaced apart in front of the zipper assembly 9 of the front side 6 of the protective cover, for adjusting the size of the protective cover, while also reducing the stress on the zipper assembly 9. In addition, when the aircraft is parked, a parking wheel stop needs to be placed in front of the wheel, so the lowermost grommet adjustment belt 12 of the front side of the protective cover is arranged at a sufficient distance from the bottom end of the protective cover to ensure that the zipper assembly 9 does not come into contact or interfere with the wheel stop. The uppermost grommet adjustment belt 12 of the front side of the protective cover is used to tighten the top opening 5 of the protective cover, ensuring that the top cloth of the protective cover fits the structure surface of the landing gear. When the uppermost grommet adjustment belt 12 is in a tightened state, it can be ensured that sand and other particles cannot enter the inside of the protective cover from the top of the protective cover. As shown, Figure 2 As shown, the upper rear of the protective cover, i.e. the rear extension, has a grommet adjustment belt 12 to adapt to the position change of the landing gear actuating arm due to weight.

[0070] The bottom inner side of the cover body 2 of the aircraft landing gear protective cover 1 is provided with an elastic member 13, such as a general elastic band, which is used to tighten the bottom opening 4 of the cover body 2. As shown, Figure 5As shown, an elastic element 13 is circumferentially sewn onto the inner bottom of the protective cover fabric 19. This elastic element is connected between the two layers of protective cover fabric 19 by a sewing thread 17. The bottom fabric of the protective cover is folded back inward for a certain length to wrap the elastic element 13 between the two layers of fabric. The upper end of the elastic element 13 is sewn to the protective cover fabric 19, while the lower end of the elastic element 13 is not sewn, so that the lower end of the elastic element 13 is in a free state. This prevents uneven sewing of the upper and lower ends of the elastic element 13, which would cause twisting and affect the tightening effect and aesthetics.

[0071] like Figure 6 As shown, the top opening 5 of the extension 3 of the aircraft landing gear protective cover 1 includes an elastic component 14 disposed along the periphery of the top opening 5 on the outer edge of the top opening 5 to tighten the top opening 5. The elastic component may include a buckle adjustment strap 12, an elastic element 13, and fabric 15. As an example, the elastic element 13 may be a general elastic band, and the fabric 15 may be made of the same material as the protective cover fabric 19. As shown, the top opening 5 of the front extension 3a is a square opening and includes the elastic component 14 disposed on the outer edge of the top opening 5 and sewn to the three sides of the top opening 5 shown as dashed lines.

[0072] Figures 7-9 A schematic diagram illustrating the assembly and installation of the resilient component 14 is shown. (For example...) Figure 7 As shown, the webbing of the male buckle end 12a and female buckle end 12b of the buckle adjustment strap is sewn to both ends of the elastic member 13. Then, a certain length of fabric 15 is folded in half and wrapped around the elastic member 13. In particular, the upper end of the elastic member 13 is wrapped with two layers of fabric 15. Figure 8 As shown, fabric 15 is sewn to the elastic element 13 along its three edges—the upper edge and both sides—using stitching 17. This eliminates the need for sewing the folded edges of the fabric 15, leaving the lower edge of the elastic element 13 free. This prevents uneven sewing at the top and bottom of the elastic element 13, which could cause twisting and affect both the tightening effect and aesthetics. Finally, the elastic component 14, consisting of the buckle adjustment strap 12, the elastic element 13, and the fabric 15, is sewn onto the outside of the top opening 5 of the protective cover. Specifically, the unsewn end (lower edge) of the elastic element 13 faces upwards, while the sewn end (upper edge) of the elastic element 13 is sewn together with the top opening 5 of the protective cover.

[0073] like Figure 10As shown in the figure, the top opening 5 of the extension 3 of the aircraft landing gear protective cover 1 also comprises a collar 16 arranged along the periphery of the top opening 5 inside the edge of the top opening 5, which can ensure better closure of the top opening 5. The collar 16 is a rectangular piece of cloth sewn from the same cloth as the protective cover cloth 19. After folding and sewing the collar 16, it is sewn to the inside of the top opening 5 of the protective cover along the periphery of the top opening 5, forming a small gap at the centering position of the zipper assembly 9. The width of the collar 16 is greater than that of the elastic assembly 14, so that after being sewn to the protective cover cloth 19, the collar 16 protrudes above the top end of the elastic assembly 14. When the buckle adjustment belt 12 on the elastic assembly 14 tightens the top opening 5, the collar 16 can ensure better closure of the top opening 5 of the protective cover, preventing wind and sand from blowing into the inside of the protective cover.

[0074] As shown in the figure, Figure 11 As shown in the figure, the side of the cover body 2 of the aircraft landing gear protective cover 1 comprises an identification area 18 for recording relevant information of the aircraft landing gear protective cover. As an example, product identification areas 18 are arranged on both left and right sides of the cover body of the protective cover, serving as product identification and facilitating collection and use.

[0075] As shown in the figure, Figure 12 As shown in the figure, when the aircraft landing gear protective cover 1 is used, the protective cover 1 is arranged behind the landing gear with the front side 6 of the protective cover 1 facing the front side of the landing gear. First, the zipper assembly 9 of the protective cover 1 is completely opened to unfold the left and right parts of the protective cover 1. Then, the unfolded protective cover 1 is moved from the rear to the front of the landing gear to wrap the wheels, shock struts and their components, with attention paid to the top opening 5 of the protective cover 1 being as closely fitted as possible to the outer cylinder of the shock struts of the landing gear. Next, the position of the protective cover 1 is adjusted so that the zipper assembly 9 is substantially located at the middle position between the two wheels, and the zipper assembly 9 of the protective cover 1 is completely engaged. Finally, each buckle adjustment belt 12 is completely tightened, with special attention paid to tightening the buckle adjustment belt at the top opening 5 to ensure that the inside of the top opening 5 is closely fitted to the surface of the outer cylinder of the shock struts of the landing gear.

[0076] The beneficial technical effects of the above preferred embodiment of the utility model are:

[0077] The utility model provides a kind of aircraft landing gear protective cover, which can protect the wheels, brake devices and landing gear mirror structure components of landing gear, and ensure that they are not damaged by wind and sand when they are in wind and sand environment for a long time.

[0078] Although the specific embodiments of the present application are described above, those skilled in the art should understand that these are only illustrative, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. An aircraft landing gear protective cover, characterised in that, The aircraft landing gear protective cover comprises: a cover body configured to receive the wheels of an aircraft landing gear and the components mounted between the wheels, and the front side of the cover body is configured to be opened along the middle part; an extension part provided in the middle part of the top of the cover body and extending upward, the extension part is configured to have the same center plane of symmetry as the cover body and is integrated with the internal space of the cover body, wherein the front side of the extension part is configured to be opened along the middle part and the top of the extension part has a top opening near the top of the front side of the cover body to receive the support components of the aircraft landing gear; and a zipper assembly located in the middle part of the front side of the cover body and the extension part and extending from the bottom of the cover body to the top opening of the extension part, the zipper assembly is configured to close the middle part of the front side of the cover body and the extension part, so that the aircraft landing gear protective cover forms a closed space for receiving the wheels of the aircraft landing gear, the components mounted between the wheels and the support components when in use.

2. An aircraft landing gear protective cover according to claim 1, characterised in that, The extension part comprises a front extension part extending obliquely forward in the front side of the top of the cover body and a rear extension part extending obliquely backward in the rear side of the top of the cover body, the front extension part has a top opening configured to receive the support components of the aircraft landing gear, and the rear extension part is configured to receive the actuating arm components of the aircraft landing gear.

3. The aircraft landing gear protective cover according to claim 1, wherein, The cover body and the extension part each comprise an inner liner and an outer liner, and the zipper assembly is provided between the inner liner and the outer liner of the cover body and the extension part.

4. The aircraft landing gear protective cover according to claim 1, wherein, The front side of the cover body and the extension part is each provided with spaced apart grommet adjustment bands for adjusting the size of the aircraft landing gear protective cover and reducing the stress on the zipper assembly.

5. An aircraft landing gear protective cover according to claim 4, wherein, The front side of the cover body and the extension part is each provided with two grommet adjustment bands.

6. The aircraft landing gear protective cover according to claim 1, wherein, The extension part is provided with a grommet adjustment band at a position away from the top opening for adapting to the position change of the support components of the aircraft landing gear.

7. The aircraft landing gear protective cover according to claim 1, wherein, The inner side of the bottom of the cover body is provided with an elastic member for tightening the bottom opening of the cover body.

8. The aircraft landing gear protective cover according to claim 1, wherein, The top opening of the extension part comprises an elastic assembly provided outside the edge of the top opening, the elastic assembly comprises a grommet adjustment band, an elastic band and cloth for tightening the top opening.

9. The aircraft landing gear protective cover according to claim 1, wherein, The top opening of the extension part comprises a collar band provided inside the edge of the top opening, which can better close the top opening.

10. The aircraft landing gear protective cover according to claim 1, wherein, The side of the cover body comprises an identification area recording the relevant information of the aircraft landing gear protective cover.

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