Protective strips, cockpit control panel and aircraft

Abstract

This utility model discloses a protective strip, a cockpit control panel, and an aircraft for providing comfortable and reliable protection for airborne equipment in confined spaces. The protective strip includes a rigid inner liner and a soft outer covering. The inner liner includes an installation area exposed outside the outer covering. The outer covering has countersunk holes corresponding to the installation area. One side of the installation area is flush with or recessed relative to the outer surface of the outer covering on the same side, while the other side is the bottom surface of the countersunk hole. The cockpit control panel includes a control panel housing, and the protective strip described in any of the above technical solutions is installed around the perimeter of the control panel housing. The aircraft includes a cabin and the cockpit control panel located within the cabin. The protective strip provided by this utility model has a simple, thin, and lightweight structure, occupies little space, is easy to install, is sturdy and reliable, has good support properties, is not easily bent or damaged, and provides soft outer protection, thus providing comfortable and reliable protection for airborne equipment in confined spaces.

Description

Technical Field

[0001] This utility model relates to the field of airborne protection technology, and in particular to a protective strip, a cockpit control panel, and an aircraft. Background Technology

[0002] With the development and upgrading of aircraft and other aircraft technologies, the cockpit control panel of aircraft not only needs to meet the installation and fixing requirements of airborne equipment, but also has higher requirements for comfort and protection. Using protective strips to protect the perimeter of the aircraft cockpit control panel is one such measure.

[0003] Currently, in the construction and furniture industries, there are many protective strip products for protecting the corners and edges of furniture and automotive interiors.

[0004] For example, a utility model patent with an authorization announcement date of July 20, 2021, and authorization announcement number CN 213720519 U discloses a flexible protective strip for table edges, specifically relating to the furniture field. The strip includes a flexible strip body comprising a straight section, transition sections at both ends of the straight section, and end sections on the outer side of the transition sections. The end sections, transition sections, and straight section are all integrally formed structures. Guide mounting posts are provided on the mounting sides of both the straight section and the end sections, and these guide mounting posts are fixed within guide grooves on the table edge. The transition section is designed with an arc shape. The thickness of the transition section, straight section, and end sections is the same as the thickness of the table edge. The outer surface of the end sections is designed as a straight surface. The upper and lower edges of the outer surfaces of the straight section and transition section are both designed with arc shapes. This flexible protective strip for table edges, employing the above structure, increases the softness of the contact surface with the table edge, preventing injury to those who work at a desk for extended periods and relieving pressure on the forearms during long hours of work.

[0005] For example, a utility model patent with an authorization announcement date of April 19, 2022, and authorization announcement number CN 216331857 U discloses an automotive rubber protective strip, specifically relating to the field of automotive parts. This includes a sealing strip, which is elongated and includes a support portion at its bottom. Two upwardly extending snap-fit ​​wings are fixedly provided on both sides of the support portion. An upwardly extending protrusion is fixedly provided at the top of the sealing strip, and sealing flanges are fixedly provided on both sides of the bottom of the sealing strip. The detachable front lip protective strip facilitates the installation and removal of the protective strip on the front lip of the car. Utilizing existing screw holes on the car ensures convenient installation of the protective strip without the need for re-setting installation holes. The sealing strip, made of soft material, provides better protection for the front lip of the car, while the snap-fit ​​wings, made of hard material, further facilitate the installation of the automotive rubber protective strip.

[0006] In summary, existing protective strips do not address the specific application of airborne protection. They are either made of rubber or plastic, which do not fully meet the environmental adaptability requirements of airborne equipment; or they lack internal structural support, making them prone to bending and damage; or they use adhesive installation, which is cumbersome; or they use snap-fit ​​installation, resulting in low connection reliability; or they are too large, unsuitable for the space-saving requirements of cockpit control panels. For aircraft cockpit control panels, due to their limited external dimensions, numerous installed devices, compact internal structure, and limited space, existing protective strips are unsuitable.

[0007] Therefore, there is a need to develop an aviation protective strip that is easy to install, has a reliable connection, occupies little space, provides soft protection, and has high environmental adaptability.

[0008] It should be noted that the above technical information is intended only to enhance the understanding of the overall background technology of this utility model, and should not be regarded as an admission or in any form implying that the above technical information constitutes prior art known to those skilled in the art. Summary of the Invention

[0009] In view of the shortcomings in the above-mentioned background technology, this utility model proposes a protective strip, a cockpit control panel and an aircraft. The technical problem to be solved is: how to provide comfortable and reliable protection for airborne equipment in a space-constrained environment.

[0010] The technical solution of this utility model is as follows: A protective strip includes a rigid inner liner and a soft outer covering. The inner liner includes an installation area exposed outside the outer covering. The outer covering has countersunk holes corresponding to the installation area. One side of the installation area is flush with or recessed relative to the outer surface of the outer covering on the same side, while the other side is the bottom surface of the countersunk hole. In this technical solution, the inner liner primarily serves a supporting function, forming a rigid-inner, flexible-outer integrated structure with the outer covering, thus solving the problem of easy bending and damage in existing soft protective strips. More importantly, if the outer surface of the rigid inner liner's installation area is flush with the outer surface of the outer covering, during installation, both the outer surface of the installation area and the outer surface of the outer covering on the same side can directly adhere to the mounting surface, ensuring a firm and reliable connection. Alternatively, if the outer surface of the rigid inner liner's installation area is recessed relative to the outer surface of the outer covering, during installation... During use, by compressing the structure on this side of the covering layer, the outer surface of the covering layer on the same side is made flush with the outer surface of the mounting area of ​​the inner liner. The outer surface of the mounting area of ​​the inner liner and the outer surface of the covering layer on the same side can also be in contact with the mounting surface at the same time, making the connection more secure and reliable. At the same time, when installing with the mounting surface, self-tapping screws are used to connect the mounting area and the mounting surface. Since the mounting area and the mounting surface are in contact with each other, and the end of the self-tapping screw can be hidden in the countersunk hole, not only can the reliability of the installation be further improved, but the structure and manufacturing process of the protective strip are also simplified, and it is suitable for the protection needs of airborne equipment with limited space.

[0011] Based on the above technical solutions, as a preferred technical solution for the protective strip, the covering layer is a polyurethane flexible covering layer. This technical solution provides a preferred structure for the covering layer, using a polyurethane material covering layer to meet the environmental requirements of airborne humidity and heat, salt spray, mold, and solar radiation. When using a polyurethane flexible covering layer, preferably, the surface on one side of the installation area is flush with the outer surface of the covering layer on the same side, avoiding concavity of the outer surface of the covering layer on the same side, and preventing the polyurethane flexible covering layer from being squeezed and damaged.

[0012] Based on the above technical solutions, as a preferred technical solution for the protective strip, the outer surface of the polyurethane flexible coating layer is provided with etched textures. Building upon the use of a polyurethane flexible coating layer, this technical solution further defines the outer surface structure of the coating layer. Specifically, the etched textures enhance the aesthetics of the protective strip, and by changing the molding surface of the mold, different etched textures can be easily formed on the outer surface of the polyurethane flexible coating layer, such as stripes, grids, meanders, orange peel textures, etc.

[0013] Based on the above technical solutions, as a preferred technical solution for the protective strip, the liner is made of metal, and the mounting area has mounting holes. This technical solution further defines the structural composition of the liner. In addition to rigid materials, metal is preferred, and dedicated mounting holes are provided. This not only reduces cost and facilitates manufacturing, but also makes it suitable for various connectors. For example, it can be fastened to the mounting surface with holes using bolts, rivets, or self-tapping screws.

[0014] Based on the above technical solutions, as a preferred technical solution for the protective strip, the polyurethane overlay and the metal liner are integrally injection molded structures. This technical solution not only further defines the structural composition of the overlay and the liner, namely a polyurethane overlay and a metal liner, but also further defines the connection relationship between the overlay and the liner, forming an integral structure by injection molding the polyurethane.

[0015] Based on the above technical solutions, as a preferred technical solution for the protective strip, the liner includes a flat liner body and a grooved structure protruding outward from the liner body. The bottom surface of the grooved structure protruding outward from the liner body is the mounting area. This technical solution further defines the structural features of the liner. First, the liner body located inside the covering layer is plate-shaped. Of course, to adapt to the shape of the mounting surface, this plate-shaped structure can be multi-segmented zigzag or arc-shaped. Second, the mounting area located outside the covering layer. Since the mounting area protrudes outward from the liner body, there must be a transition structure between the mounting area and the liner body, namely the sidewall of the grooved structure. This sidewall structure not only allows the mounting area to protrude but also forms a reinforcing rib equivalent to the liner body. This not only enhances the overall rigidity of the liner and prevents deformation but also makes the connection between the liner, which is integrally molded by injection molding, and the covering layer more firmly.

[0016] A cockpit control panel includes a control panel housing, with a protective strip as described in any of the above-mentioned technical solutions installed around the perimeter of the control panel housing. This technical solution provides a cockpit control panel using the protective strip, which can be installed at the corners of the control panel housing or at other locations on the control panel housing. It should be specifically noted that the cockpit control panel can be the control panel of any equipment, for example, it can be the control panel of land-based mobile equipment such as automobiles, the control panel of aviation equipment such as airplanes, the control panel of underwater mobile equipment such as ships and submarines, the control panel of construction equipment such as cranes and tunneling machines, and the control panel of various amusement rides.

[0017] Based on the above technical solutions, as a preferred technical solution for the cockpit control panel, the periphery of the control panel housing is provided with connecting holes. These connecting holes are detachably connected to the mounting holes in the mounting area via bolts, rivets, or screws. This technical solution further defines the structure for the control panel housing and the protective strip to fit together, facilitating installation and disassembly by using connecting holes to fit the mounting holes of the protective strip.

[0018] Based on the above technical solutions, as a preferred technical solution for the cockpit control panel, when the protective strip is installed using bolt groups, the bolt heads or nuts of the bolt groups are completely submerged in the countersunk holes; when the protective strip is installed using rivets, the rivet heads are completely submerged in the countersunk holes.

[0019] An aircraft includes a cabin and a cockpit control panel located within the cabin, wherein the cockpit control panel is the cockpit control panel described in any of the above-mentioned technical solutions.

[0020] This utility model provides a novel protective strip, cockpit control panel, and aircraft, which, compared with the prior art, have the following advantages: 1. This invention provides a protective strip applicable to the field of airborne protection, employing an internal metal liner as a skeleton and an external polyurethane covering. It offers both good support, resisting bending and damage, and provides soft outer protection, enabling comfortable and reliable protection for airborne equipment in confined spaces.

[0021] 2. The polyurethane coating meets the requirements of airborne humidity, salt spray, mold, and solar radiation.

[0022] 3. The built-in metal backing plate provides support, solving the problem of soft protective strips being easily bent and damaged.

[0023] 4. The connection is secure and reliable via bolts and nuts. Bolts are inserted from the outside in, making installation quick and easy. Bolt installation is convenient, the connection is reliable and secure, the structure is lightweight and thin, it occupies little space, and it keeps the outer end face of the guard strip flat and aesthetically pleasing.

[0024] 5. Through injection molding, polyurethane material can be wrapped around the liner according to the designed outline dimensions to form a smooth and dense outer surface, improving the overall aesthetics. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram illustrating the application status of the protective strip; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle; Figure 4 for Figure 1 Cross-sectional view of the connection between the central protective strip and the control panel housing.

[0027] Explanation of icon numbers: Protective strip 100; Lining 1, Lining body 1-1, Groove structure 1-2, Mounting holes 1-3; Coating layer 2, countersunk hole 2-1; Control panel housing 3, connecting hole 3-1; Bolt group 4, bolt head 4-1, nut 4-2, washer 4-3. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the core concept of the present utility model and the following embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0030] It should be noted that, in the description of this application, unless otherwise stated, "several" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "axial," "radial," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0032] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0033] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0034] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0035] A protective strip, such as Figures 1 to 4 As shown, it includes a rigid inner liner 1 and a soft covering layer 2. The inner liner body 1-1 of the inner liner 1 is wrapped in the covering layer 2, providing support for the covering layer 2. The inner liner 1 also includes an installation area exposed outside the covering layer 2, which is used to fit the installation surface that needs protection.

[0036] The covering layer 2 has countersunk holes 2-1 corresponding to the mounting area. The countersunk holes 2-1 are used to accommodate components, such as screws, that connect the protective strip to the mounting surface. The surface on one side of the mounting area is flush with the outer surface of the covering layer 2 on the same side, or the surface on one side of the mounting area is recessed relative to the outer surface of the covering layer 2 on the same side, while the surface on the other side of the mounting area is the bottom surface of the countersunk holes 2-1.

[0037] In this embodiment, the inner lining 1 mainly serves a supporting function and can form an integrated structure with the covering layer 2 that is rigid inside and flexible outside, thus solving the problem that soft protective strips are easily bent and damaged in the prior art.

[0038] More importantly, the installation area of ​​the rigid inner liner 1 is exposed outside the soft covering layer 2. If its outer surface is flush with the surface of the covering layer 2 on the same side, then during installation, the outer surface of the installation area of ​​the inner liner 1 and the outer surface of the covering layer 2 on the same side can be directly attached to the installation surface, and the connection is firm and reliable.

[0039] Alternatively, the installation area of ​​the rigid inner liner 1 is exposed outside the soft covering layer 2. If its outer surface is concave relative to the outer surface of the same side of the covering layer 2, then during installation, by compressing the structure of that side of the covering layer 2, the outer surface of the covering layer 2 on the same side is made flush with the outer surface of the installation area of ​​the inner liner 1. The outer surface of the installation area of ​​the inner liner 1 and the outer surface of the same side of the covering layer 2 can also be in contact with the installation surface at the same time, making the connection more firm and reliable.

[0040] Meanwhile, when installing with the mounting surface, self-tapping screws are used to connect the mounting area and the mounting surface. Since the mounting area and the mounting surface fit together, and the end of the self-tapping screw can be hidden in the countersunk hole 2-1, not only can the reliability of the installation be further improved, but the structure and manufacturing process of the protective strip are also simplified. It is also suitable for the protection needs of airborne equipment with limited space.

[0041] Preferably, the edge of the protective strip is a smooth arc-shaped surface, that is, the edge of the covering layer 2 is an arc-shaped structure.

[0042] Based on the above embodiments, as a preferred embodiment of the protective strip, the covering layer 2 is a polyurethane flexible covering layer. This embodiment provides a preferred structure for the covering layer 2, using polyurethane material to meet the environmental requirements of airborne humidity and heat, salt spray, mold, and solar radiation. When using a polyurethane flexible covering layer, preferably, the surface on one side of the installation area is flush with the outer surface of the covering layer 2 on the same side, avoiding concavity of the outer surface of the covering layer 2 on the same side, and preventing the polyurethane flexible covering layer from being squeezed and damaged.

[0043] Based on the above embodiments, as a preferred embodiment of the protective strip, the outer surface of the polyurethane flexible coating layer is provided with etched textures. Building upon the use of a polyurethane flexible coating layer, this embodiment further defines the outer surface structure of the coating layer 2. Specifically, the use of etched textures enhances the aesthetics of the protective strip, and by changing the molding surface of the mold, different etched textures can be easily formed on the outer surface of the polyurethane flexible coating layer, such as stripes, grids, meanders, orange peel textures, etc.

[0044] Based on the above embodiments, as a preferred embodiment of the protective strip, the inner lining 1 is made of metal, and the mounting area has mounting holes 1-3. Preferably, the inner lining 1 is made of aluminum alloy plate, but other metal plates, such as steel plates, can also be used.

[0045] This embodiment further defines the structural composition of the liner 1. Based on the rigid material, metal material is preferred, and dedicated mounting holes 1-3 are provided. This not only makes it low-cost and easy to process and manufacture, but also makes it suitable for various connecting parts. For example, it can be fastened to the mounting surface with holes by bolt groups, rivets, or self-tapping screws.

[0046] Based on the above embodiments, as a preferred embodiment of the protective strip, the polyurethane covering layer 2 and the metal liner 1 are integrally injection molded structures. This embodiment not only further defines the structural composition of the covering layer 2 and the liner, which are respectively a polyurethane covering layer and a metal liner, but also further defines the connection relationship between the covering layer 2 and the liner 1, forming an integral structure of the liner 1 and the covering layer 2 through polyurethane injection molding.

[0047] Based on the above embodiments, as a preferred embodiment of the protective strip, the inner lining 1 includes a flat inner lining body 1-1 and a groove-shaped structure 1-2 that protrudes outward relative to the inner lining body 1-1, and the bottom surface of the groove-shaped structure 1-2 that protrudes outward relative to the inner lining body 1-1 is the installation area.

[0048] This embodiment further defines the structural features of the inner liner 1. First, the inner liner body 1-1, located inside the covering layer 2, has a plate-like structure. Of course, to adapt to the shape of the mounting surface, this plate-like structure can be a multi-segmented zigzag shape or an arc shape. Preferably, the protective strip 100 is modularly designed, and when the mounting surface to be protected is long, multiple protective strips 100 are spliced ​​together.

[0049] Secondly, there is the installation area located outside the covering layer 2. Since the installation area is convex relative to the inner liner body 1-1, there must be a transition structure between the installation area and the inner liner body 1-1, namely the side wall of the groove structure 1-2. This side wall structure can not only make the installation area protrude, but also form a reinforcing rib equivalent to the inner liner body 1-1. It can not only enhance the overall rigidity of the inner liner 1 and prevent deformation, but also make the connection between the inner liner 1, which is integrally molded by injection, and the covering layer 2 more firmly.

[0050] In a preferred embodiment of the protective strip, the protective strip comprises a metal inner liner and an outer integrally formed polyurethane flexible covering layer. The metal liner has bolt mounting holes, and the polyurethane flexible covering layer has countersunk holes near the bolt mounting holes. The bolt mounting holes on the metal liner are designed with a recessed stepped structure, allowing the metal liner to directly contact the mounting surface at the bolt connection, improving connection strength and preventing the polyurethane flexible covering layer from being crushed and damaged.

[0051] The thickness of the protective strip in the above embodiments can be adjusted by changing the mold size; the surface hardness of the protective strip can be adjusted by changing the polyurethane material formula; the surface of the protective strip can be etched with different textures by changing the mold surface, such as striped texture, grid texture, meander texture, orange peel texture, etc.

[0052] A cockpit control panel includes a control panel housing 3, and a protective strip 100 as described in any of the above embodiments is installed around the periphery of the control panel housing 3. This embodiment provides a cockpit control panel using the protective strip, and the protective strip 100 can be installed at the corner of the control panel housing 3 or at other locations on the control panel housing 3.

[0053] It should be noted that the cockpit control panel can be the cockpit control panel of any equipment. For example, it can be the cockpit control panel of land-based mobile equipment such as automobiles, the cockpit control panel of aviation equipment such as airplanes, the cockpit control panel of water-based mobile equipment such as ships and submarines, the cockpit control panel of construction equipment such as cranes and tunneling machines, and the cockpit control panel of various amusement equipment.

[0054] Based on the above embodiments, in a preferred embodiment of the cockpit control panel, the periphery of the control panel housing 3 is provided with a connecting hole 3-1. The connecting hole 3-1 and the mounting hole 1-3 in the mounting area are detachably connected by a bolt group 4, or by a rivet, or by a screw. This embodiment further defines the structure for the control panel housing 3 to adapt to the protective strip, that is, by providing a connecting hole 3-1 to adapt to the mounting hole 1-3 of the protective strip, it is convenient to install and remove using a bolt group.

[0055] The protective strip shown can be directly installed using bolts and nuts, reliably and securely mounted on the cockpit control panel. The bolts are inserted from the outside and tightened from the inside using nuts 4-2 and washers 4-3, making installation and disassembly convenient and quick. The bolt head 4-1 is fully recessed into the countersunk hole 2-1. Due to the effect of the inner liner 1, the protective strip is straight and flat, fitting tightly against the mounting surface.

[0056] Based on the above embodiments, as a preferred embodiment of the cockpit control panel, when the protective strip is installed using bolt group 4, the bolt head 4-1 or nut 4-2 of bolt group 4 is completely recessed into the countersunk hole 2-1; when the protective strip is installed using rivets, the rivet head is completely recessed into the countersunk hole 2-1.

[0057] This embodiment provides several installation methods for the protective strip. One method involves inserting the bolt from the outside, with the bolt passing sequentially through the countersunk hole 2-1, mounting hole 1-3, and connecting hole 3-1. The bolt head 4-1 is hidden in the countersunk hole 2-1, and the other end of the bolt is secured to the inner wall of the control panel housing 3 via a washer 4-3 and a nut 4-2. This connection method can be achieved either by rotating the bolt head 4-1 outside the control panel housing 3 (which has a relatively large operating space) with a screwdriver, or by clamping the nut 4-2 inside the compact control panel housing 3 with a wrench, thus achieving a tighter fit.

[0058] Another method involves inserting the bolt from inside the control panel housing 3. The bolt passes sequentially through the connecting hole 3-1, the mounting hole 1-3, and the countersunk hole 2-1. The bolt head 4-1 fits against the inner wall of the control panel housing 3, and the washer 4-3 and nut 4-2 connected to the other end of the bolt are locked in the countersunk hole 2-1. This connection method achieves tightening by first using a sleeve to screw the nut 4-2 onto the outside of the control panel housing 3, which has a relatively large operating space, and secondly by using a wrench to clamp the bolt head 4-1 inside the compact space of the control panel housing 3.

[0059] Of course, the protective strip and the control panel housing 3 can also be connected by rivets. Simply pass the rivet through the connecting hole 3-1 and the mounting hole 1-3, and after anchoring, the rivet head is completely hidden in the countersunk hole 2-1.

[0060] An aircraft includes a cabin and a cockpit control panel located within the cabin, wherein the cockpit control panel is the cockpit control panel described in any of the above-mentioned technical solutions.

[0061] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0062] The above content shows and describes the basic principles, main features, and beneficial effects of this utility model. The above description is merely a preferred embodiment of this utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A guard strip, characterized by: It includes a rigid inner liner (1) and a soft covering layer (2). The inner liner (1) includes an installation area exposed outside the covering layer (2). The covering layer (2) is provided with a countersunk hole (2-1) corresponding to the installation area. The surface of one side of the installation area is flush with the outer surface of the covering layer (2) on the same side or recessed relative to the outer surface of the covering layer (2) on the same side, and the other side of the surface is the bottom surface of the countersunk hole (2-1).

2. The guard strip of claim 1, wherein: The covering layer (2) is a polyurethane flexible covering layer.

3. The guard strip of claim 2, wherein: The outer surface of the polyurethane flexible coating layer is provided with etched textures.

4. The guard strip according to any one of claims 1 to 3, characterized in that: The inner lining (1) is made of metal, and the mounting area is provided with mounting holes (1-3).

5. The guard strip of claim 4, wherein: The polyurethane coating layer (2) and the metal liner (1) are integrally injection molded structures.

6. The guard strip according to any one of claims 1-3, 5, wherein: The liner (1) includes a flat liner body (1-1) and a groove structure (1-2) that protrudes outward relative to the liner body (1-1). The bottom surface of the groove structure (1-2) that protrudes outward relative to the liner body (1-1) is the installation area.

7. A cockpit control panel, comprising a control panel housing (3), characterized in that: The periphery of the control panel housing (3) is provided with a protective strip (100) as described in any one of claims 1-6.

8. The cockpit control panel according to claim 7, characterized in that: The control panel housing (3) has a connection hole (3-1) around its periphery. The connection hole (3-1) and the mounting hole (1-3) in the mounting area are detachably connected by a bolt group (4), a rivet, or a screw.

9. The cockpit control panel according to claim 7 or 8, characterized in that: When the protective strip is installed using bolt group (4), the bolt head (4-1) or nut (4-2) of the bolt group (4) is completely sunk into the countersunk hole (2-1); when the protective strip is installed using rivets, the rivet head is completely sunk into the countersunk hole (2-1).

10. An aircraft, comprising a cabin and a cockpit control panel located within the cabin, characterized in that: The cockpit control panel is the cockpit control panel as described in any one of claims 7-9.

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