An off-board access opening device and an aircraft comprising such an off-board access opening device

Abstract

This invention proposes an off-aircraft exit opening device for generating an emergency exit passage for an aircraft. The aircraft includes a skin, and the off-aircraft exit opening device comprises: a cutting cable arranged on the skin; a detonator configured to detonate the cutting cable; and an initiating device arranged beside the detonator to ignite it. It achieves at least one of the following objectives: simplified structure and operation, improved reliability, and reduced probability of misoperation; improved environmental adaptability, applicable to various environments / aircraft types; simple installation and easy maintenance, reducing installation and maintenance costs, and minimizing impact on the aircraft's aerodynamic characteristics. This invention also proposes an aircraft including such an off-aircraft exit opening device, providing a reliable off-aircraft exit opening solution for onboard personnel by balancing ease of operation, environmental adaptability, and economy, ensuring safety and cost-effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of aircraft design, and more specifically to an exit passage opening device for generating an emergency exit passage in the cabin of an aircraft in an emergency situation, and to an aircraft including such an exit passage opening device. Background Technology

[0002] An exit passage opening device is an escape device for aircraft that can be used in emergency situations. Its core function is to open / generate an emergency exit passage in the event of an irreversible emergency, so as to enable the rapid evacuation of personnel.

[0003] Existing off-board access control devices include three types: manual mechanical, automatic, and semi-automatic. However, these three types of off-board access control devices in the prior art still have shortcomings.

[0004] Manually operated mechanical escape hatch opening devices trigger escape hatches through purely physical structures (such as handles or breaching tools) and are currently the most widely used technology. Typical structures include aircraft door handles, relying on manual operation to open the hatch. While offering advantages such as low cost and simple structure, they still have the following drawbacks: First, their operation depends on human experience: in an emergency, personnel may forget the operating procedures due to panic, leading to a high rate of error by non-professionals, and even potentially causing unnecessary deployment of slides and secondary accidents. Second, these devices have poor environmental adaptability; the mechanical structure is susceptible to extreme conditions, resulting in the inability to properly open the emergency escape hatch. Third, maintenance costs are inherently high; for example, manual devices require frequent inspection of hinges, springs, and other vulnerable parts.

[0005] Automatic / semi-automatic off-pilot access devices rely on sensors to determine emergency situations and automatically unlock and open the emergency off-pilot access. While this type of device reduces the risk of human intervention and improves reliability in certain scenarios, it still has the following drawbacks: First, because it relies on sensors to determine emergency situations, there is a risk of false alarms and missed alarms. Second, these devices often require periodic sensor calibration and energy storage unit replacement, significantly increasing maintenance costs. Third, they lack compatibility; existing automatic / semi-automatic off-pilot access devices are difficult to adapt to multiple aircraft models and scenarios, often requiring customization based on application scenarios, resulting in high production and design costs. Finally, semi-automatic off-pilot access devices, because they require mechanical devices to open / create the emergency off-pilot access, still suffer from poor environmental adaptability.

[0006] In summary, there is an urgent need for an off-site access opening device that combines ease of operation, environmental adaptability, and economy, in order to at least address one of the aforementioned shortcomings. Utility Model Content

[0007] To address the problems existing in the prior art, this invention proposes an off-aircraft access control device, which achieves at least one of the following objectives: simplified structure and operation, improved reliability, and reduced probability of misoperation; improved environmental adaptability, applicable to various environments and aircraft types; simple installation and easy maintenance, reducing installation and maintenance costs, and minimizing impact on the aircraft's aerodynamic characteristics. This invention also proposes an aircraft incorporating such an off-aircraft access control device, providing a reliable off-aircraft access control solution for onboard personnel by balancing ease of operation, environmental adaptability, and economy, ensuring safety and cost-effectiveness.

[0008] Therefore, in the first aspect of this utility model, an off-aircraft passage opening device is proposed. The off-aircraft passage opening device is used to generate an emergency off-aircraft passage for an aircraft. The aircraft includes a skin. The off-aircraft passage opening device includes: a cutting cable arranged on the skin; a detonator configured to cause the cutting cable to detonate; and an initiating device arranged next to the detonator for igniting the detonator.

[0009] According to the above technical solution, the off-aircraft passage opening device of this utility model can achieve the following beneficial effects: it can simplify the structure and operation, improve reliability, and reduce the probability of misoperation; it can improve environmental adaptability and be applied to various environments / aircraft models; it does not require special arrangement of emergency off-aircraft passages; it simplifies the installation process and facilitates maintenance, reducing installation and maintenance costs.

[0010] In an embodiment of this utility model, the aircraft further includes a cabin frame and a cabin stringer, with a cutting cable arranged along the inner edge of the cabin frame and spanning the cabin stringer, and a detonation device arranged on the cabin stringer.

[0011] According to the above technical solution, the off-aircraft passage opening device of this utility model can achieve the following beneficial effects: such arrangement can improve the reliability of the off-aircraft passage opening device, simplify the installation process, eliminate the need for complex fastening structures, and reduce the impact on the aerodynamic characteristics of the aircraft.

[0012] In an embodiment of this invention, the cutting cable is attached to the skin by adhesive bonding.

[0013] According to the above technical solution, the off-site passage opening device of this utility model can achieve the following beneficial effects: such arrangement can simplify the installation process while ensuring reliability, eliminate the need for complex fastening structures, and improve environmental adaptability.

[0014] In an embodiment of this utility model, the off-board access device further includes a rubber sheath and a rubber fixing seat. The rubber sheath covers the cutting cable and the detonator, and the rubber fixing seat secures the rubber sheath to the cabin girder.

[0015] According to the above technical solution, the off-site passage opening device of this utility model can achieve the following beneficial effects: such arrangement can improve the reliability of the off-site passage opening device, simplify the installation process, and eliminate the need for complex fastening structures.

[0016] In an embodiment of this utility model, the detonation device is fastened to the compartment girder by bolts.

[0017] According to the above technical solution, the off-site passage opening device of this utility model can achieve the following beneficial effects: such arrangement can improve the reliability of the off-site passage opening device, further simplify the installation process, and eliminate the need for complex fastening structures.

[0018] In an embodiment of this utility model, the rubber fixing seat is fastened to the cabin girder by bolts.

[0019] According to the above technical solution, the off-site passage opening device of this utility model can achieve the following beneficial effects: such arrangement can improve the reliability of the off-site passage opening device, further simplify the installation process, and eliminate the need for complex fastening structures.

[0020] In an embodiment of this utility model, the off-board passage opening device further includes a stop arranged inside the cabin to block the cutting cable.

[0021] According to the above technical solution, the off-board passage opening device of this utility model can achieve the following beneficial effects: further improve the reliability of the off-board passage opening device and avoid interference with other components in the cabin.

[0022] In an embodiment of this utility model, the stop is a stop with an arc-shaped groove.

[0023] According to the above technical solution, the off-machine channel opening device of this utility model can achieve the following beneficial effects: by using the stop with the arc-shaped groove, the detonation energy of the cutting cable can be more concentrated, thereby further improving the cutting efficiency of the cutting cable.

[0024] In a second aspect of the present invention, an aircraft is also provided, wherein the aircraft includes an exit passage opening device according to any embodiment of the first aspect of the present invention, for generating an emergency exit passage within the cabin of the aircraft.

[0025] According to the above technical solution, the aircraft of this utility model can have the following beneficial effects: by using an off-aircraft passage opening device that takes into account ease of operation, environmental adaptability and economy, a reliable off-aircraft passage opening solution is provided for the personnel on board, ensuring safety and affordability.

[0026] In an embodiment of this utility model, a stepped platform is arranged inside the aircraft cabin, which is configured to facilitate the passage of onboard personnel through the emergency exit passage generated by the exit passage opening device.

[0027] According to the above technical solution, the aircraft of this utility model can have the following beneficial effects: it facilitates the passage of passengers through the generated emergency exit passage.

[0028] It should be understood that the above description of the utility model is provided to present a simplified version of the selected concepts further described in the detailed description. This does not imply the identification of key or essential features of the claimed subject matter, the scope of which is uniquely defined by the appended claims. Furthermore, the claimed subject matter is not limited to embodiments that address any of the shortcomings pointed out above or in any part of this disclosure. Attached Figure Description

[0029] Further features, exemplary embodiments, and advantages of the present invention will be explained in more detail below with reference to the accompanying drawings. It will be understood that this embodiment does not exhaust the full scope of the present invention. It will also be understood that some or all of the features described below may be combined in other ways, wherein: Figure 1 An off-board passage opening device according to a preferred embodiment of the present invention is shown; Figure 2 A partial structure of a compartment is shown, in which a cutting cable is arranged for an off-board passage opening device according to a preferred embodiment of the present invention; Figure 3 A partial schematic diagram of a cabin equipped with an off-board passageway opening device according to a preferred embodiment of the present invention is shown; and Figure 4 It shows the addition of stepped pedals. Figure 3 A partial schematic diagram of the compartment is shown.

[0030] List of reference numerals

[0031] 100 Off-site access control device; 1. Cutting rope; 2. Cabin frame; 3. Cabin girder; 4. Detonation device; 5. Detonators; 6. Rubber sheath; 7. Rubber mounting base; 8 stops; 9. Stepped pedals. Detailed Implementation

[0032] The following describes specific embodiments of the present invention. It should be noted that, in order to provide a concise description, this specification cannot exhaustively describe all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this invention, some design, manufacturing, or production modifications based on the technical content disclosed herein are merely conventional technical means and should not be construed as insufficient content of this disclosure.

[0033] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0034] In this article, the terms “first,” “second,” and similar words do not indicate any order, quantity, or importance, but are simply used to distinguish different components.

[0035] In this document, the terms “a” or “one” and similar words do not indicate a quantity limitation, but rather indicate that there is at least one.

[0036] In this article, the terms “connection” or “link” and similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0037] In this article, the terms "inner side", "outer side", "inward", "outward", "proximal", and "far side" are used only to describe the relative positions of the elements.

[0038] In a first aspect, an off-site channel opening device 100 is proposed. Figure 1 An off-board passage opening device 100 according to a preferred embodiment of the present invention is shown. As shown, the off-board passage opening device 100 includes a cutting rope 1, a detonating device 4, and a detonator 5.

[0039] Specifically, the cutting cable 1 is a shaped charge cutting cable, which is arranged, for example, on the skin and configured to generate a metal jet through detonation, to cut the skin and create an emergency exit channel. Preferably, the cutting cable 1 is arranged on the skin by adhesive bonding.

[0040] The detonator 5 is arranged to be connected to the cutting cable 1 so that when the detonator 5 is ignited, the detonator 5 can output detonation energy to the cutting cable 1 to cause the cutting cable 1 to detonate.

[0041] The initiation device 4 is arranged to ignite the detonator 5, thereby causing the detonation of the cutting cable 1 through the detonator 5, and then generating a metal jet through the detonation of the cutting cable 1 to, for example, cut open the skin to create an emergency exit channel. Preferably, the initiation device 4 is arranged next to the detonator 5 for easy ignition of the detonator 5. Optionally, the initiation device 4 includes an electric initiator capable of receiving signals from the airborne system and outputting a high-energy current to the detonator 5 to ignite the detonator 5. Preferably, the initiation device 4 is configured to be manually operated to output energy to the detonator 5 to ignite the detonator 5.

[0042] Preferably, the off-board access opening device 100 includes two detonation devices 4. Optionally, the number of detonation devices 4 can be adjusted to one, three, or more depending on the application scenario.

[0043] It is worth noting that, despite Figure 1 The cutting cable 1 shown is arranged to form a rectangle with rounded corners, but the shape of the cutting cable 1 after arrangement can also be adjusted according to the application scenario, such as a square, circle, ellipse or other suitable irregular shape.

[0044] It is worth noting that, despite Figure 1 The cutting cable 1 shown is only shown as one loop, but the cutting cable 1 can also be adjusted to have multiple loops depending on the application scenario.

[0045] More preferably, the off-board access opening device 100 also includes a rubber sleeve 6 and a rubber fixing seat 7, which will be discussed in conjunction with the following. Figure 3 This will be described in detail.

[0046] Figure 2 A partial structure of a compartment is shown, in which a cutting cable 1 is arranged with an off-board passage opening device 100 according to a preferred embodiment of the present invention. Figure 3 A partial schematic diagram of a cabin equipped with an off-board passage opening device 100 according to a preferred embodiment of the present invention is shown. Figure 4 It shows the addition of stepped pedal 9. Figure 3 A partial schematic diagram of the compartment is shown.

[0047] like Figure 3 As shown, the aircraft includes a cabin frame 2 and a cabin stringer 3. Preferably, the cutting cable 1 of the off-board access opening device 100 arranged inside the aircraft cabin is positioned inside the cabin frame 2 at a corresponding location and spans the cabin stringer 3 at the corresponding location. When the cutting cable 1 detonates and generates a metal jet, it can cut through the skin and cabin stringer 3 at the corresponding location to create an emergency off-board access route inside the cabin frame 2 at the corresponding location.

[0048] like Figure 4 As shown, preferably, the detonation device 4 is mounted on the compartment girder 3 and fastened to the compartment girder 3 by fasteners. Preferably, the detonation device 4 is fastened to the compartment girder 3 by fasteners such as bolts or screws, so as to be arranged on the compartment girder 3.

[0049] In such Figure 4 In the preferred embodiment shown, the off-board access device 100 further includes a rubber sleeve 6 and a rubber mounting base 7. Preferably, the rubber sleeve 6 covers the cutting cable 1 and the detonator 5, which on the one hand prevents the cutting cable 1 and the detonator 5 from interfering with other components in the cabin, and on the other hand helps to arrange the cutting cable 1 and the detonator 5 neatly. Preferably, the rubber mounting base 7 is configured to accommodate the cutting cable 1 and / or the detonator 5, and / or the rubber sleeve 6 covering the cutting cable 1 and the detonator 5, and can be snapped onto the cabin girder 3, and is configured to be fastened to the corresponding cabin girder 3 by fasteners, thereby fixing the cutting cable 1 and / or the detonator 5 to the cabin girder 3.

[0050] like Figure 4 As shown, preferably, the off-board access device 100 further includes a stop 8. The stop 8 is arranged inside the cabin and is configured to block the cutting cable 1 and / or detonator 5. This can further prevent the cutting cable 1 and / or detonator 5 from interfering with other components inside the cabin.

[0051] More preferably, the stop 8 that shields the cutting cable 1 and / or detonator 5 includes an arcuate groove. The cutting cable 1 and / or detonator 5 are placed within the arcuate groove of the stop 8; in other words, the arcuate groove of the stop 8 faces the skin direction, and the cutting cable 1 and / or detonator 5 are positioned between the skin and the stop 8. The arcuate groove of the stop 8 is configured to further reflect and concentrate the metal jet generated by the detonation of the cutting cable 1, thereby cutting through the skin and / or the compartment stringer 3 more efficiently to create an emergency exit passage.

[0052] At least one of the following objectives can be achieved by using the off-site channel opening device 100 according to the first aspect of the present invention: 1. Simplified structure and operation, improved reliability, and reduced probability of misoperation: The off-board passage opening device of this utility model detonates the detonator through the detonation device, and then outputs detonation power to the cutting cable through the detonator to cause the cutting cable to detonate, generating a metal jet to cut an emergency off-board passage on the skin. Compared with traditional mechanical opening devices or automatic / semi-automatic devices, such an off-board passage opening device has a simpler structure, higher reliability, and can significantly reduce the probability of misoperation. 2. Improved environmental adaptability, applicable to various environments / aircraft types: Due to its simplified structure, the off-aircraft access control device according to this utility model has higher environmental adaptability and can be applied to various environments / aircraft types. For example, it can be applied to aircraft with other existing off-aircraft access control devices to form a redundant emergency design and improve system safety. 3. Simple installation and easy maintenance, reducing installation and maintenance costs: The installation process of the off-site channel opening device according to this utility model is simplified, and it is also easy to maintain, which can reduce installation and maintenance costs.

[0053] In a second aspect of this invention, an aircraft is also provided, which includes an off-board access device 100 as described in the first aspect of this invention. The off-board access device 100 is installed inside the cabin of the aircraft, as... Figure 3 As shown.

[0054] In such Figure 4 In another embodiment shown, the aircraft according to the second aspect of the present invention further includes a stepped footboard 9, which is arranged at a corresponding position inside the aircraft cabin and is configured to facilitate the passage of onboard personnel through the emergency exit passage generated by the exit passage opening device 100.

[0055] Specifically, in aircraft test flight scenarios, the personnel on board refer to the flight crew. In this scenario, the off-aircraft access opening device according to this utility model and the aircraft including such off-aircraft access opening device can provide the flight crew with a reliable off-aircraft access opening solution, ensuring the safety and reliability of the test flight.

[0056] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, structure, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, structure, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, structure, or apparatus that includes said element.

[0057] The description of the utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An off-aircraft access opening device, the off-aircraft access opening device being used to generate an emergency off-aircraft access route for an aircraft, the aircraft comprising a skin, characterized in that, The off-board access opening device includes: A cutting cable, the cutting cable being arranged on the skin; A detonator configured to cause the cutting cable to detonate. An initiation device is arranged next to the detonator for igniting the detonator.

2. The off-site passage opening device according to claim 1, characterized in that, The aircraft also includes a cabin frame and a cabin girder, the cutting cable is arranged along the inner edge of the cabin frame and spans the cabin girder, and the detonation device is arranged on the cabin girder.

3. The off-site passage opening device according to claim 2, characterized in that, The cutting cable is attached to the skin by means of adhesive bonding.

4. The off-board passage opening device according to claim 3, characterized in that, The off-board access device also includes a rubber sheath and a rubber fixing seat. The rubber sheath covers the cutting cable and the detonator, and the rubber fixing seat secures the rubber sheath to the cabin girder.

5. The off-site passage opening device according to claim 4, characterized in that, The detonation device is bolted to the compartment girder.

6. The off-board passage opening device according to claim 5, characterized in that, The rubber mounting bracket is fastened to the cabin girder by bolts.

7. The off-site passage opening device according to claim 6, characterized in that, The off-board access device also includes a stop located inside the cabin to block the cutting cable.

8. The off-board passage opening device according to claim 7, characterized in that, The stop is a stop with an arc-shaped groove.

9. An aircraft, characterized in that, The aircraft includes an exit passage opening device as described in any one of claims 1 to 8, for generating an emergency exit passage within the aircraft's cabin.

10. The aircraft according to claim 9, characterized in that, The cabin of the aircraft is provided with stepped steps, which are arranged to facilitate the passage of passengers through the emergency exit passage generated by the exit passage opening device.

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