Sliding door used on airplane and having emergency pressure relief function

By setting up an emergency exit and a depressurization emergency door in the middle of the sliding door, the problem of traditional aircraft cabin partitions getting stuck in emergencies is solved, achieving the effects of emergency passage and privacy protection, and ensuring the safety and comfort of the aircraft cabin.

CN223508475UActive Publication Date: 2025-11-04GUANGZHOU AIRCRAFT MAINTENANCE ENG
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Patent Information

Application Number
CN202422949317.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-04
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Traditional aircraft cabin partitions can easily become obstacles to passenger evacuation in emergencies due to sliding doors getting stuck or malfunctioning, and they also offer poor privacy and sound insulation.

Method used

Design an emergency exit with a pressure relief emergency door in the middle of a sliding door. The door is connected to the emergency exit via a snap-fit ​​structure, ensuring that the emergency exit can be kicked or smashed open in an emergency to provide emergency passage. At the same time, composite materials and decorative panels are used to improve strength and sound insulation.

Benefits of technology

While ensuring passenger privacy and comfort, it provides emergency passage functionality in case of emergencies to ensure smooth evacuation without affecting the separation effect during normal use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sliding door with an emergency pressure relief function, which is used on an airplane and comprises a door body, an emergency port and a pressure relief emergency door are arranged in the middle of the door body, the pressure relief emergency door is fixed in the emergency port through a connecting component, and a gap is arranged between the edge of the pressure relief emergency door and the edge of the emergency port. In the using process of the sliding door, under the emergency situation, if the sliding door deforms and is stuck or cannot be opened due to faults, the pressure relief emergency door can be kicked open by a foot or the pressure relief emergency door is smashed open by other objects, and the emergency port is opened, so that personnel can pass through smoothly.
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Description

Technical Field

[0001] This utility model relates to the field of aircraft sliding door technology, specifically to a sliding door with emergency depressurization function used on aircraft. Background Technology

[0002] In aircraft cabin design, separating different cabin sections is a crucial task. Traditional aircraft cabin partitioning methods typically employ two approaches: the first involves fixing a half-height partition at the partition point, separating only the upper part of the cabin while the lower part is separated by a curtain; the second involves direct partitioning via a curtain. While both methods achieve simple and quick separation, they offer poor privacy between the partitioned cabins, allowing occupants to easily enter and observe the adjacent cabin, and provide virtually no sound insulation.

[0003] Therefore, in order to achieve better separation, it is desirable to use fixed full-height bulkheads to completely separate the compartments, leaving only a personnel passage in the middle, and installing sliding doors at the personnel passage.

[0004] However, in emergency situations, full-height partitions and sliding doors can become obstacles to evacuating passengers, especially if the sliding doors become stuck or malfunction and cannot be opened.

[0005] Therefore, a sliding door with an emergency pressure relief function needs to be designed. Utility Model Content

[0006] The purpose of this invention is to provide a sliding door with an emergency depressurization function for use on aircraft.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A sliding door with emergency depressurization function for use on an aircraft is characterized in that it includes a door body, an emergency access port and a depressurization emergency door in the middle of the door body, the depressurization emergency door is fixed in the emergency access port by a connecting component, and a gap is provided between the edge of the depressurization emergency door and the edge of the emergency access port.

[0009] A further technical solution of this utility model is as follows: the connecting component includes a front frame and a rear frame, which are located on the front and rear sides of the emergency opening, respectively, and correspond to the edge of the pressure relief emergency door and the edge of the emergency opening. The front frame and the rear frame are connected together by a snap-fit ​​structure, and the edge of the pressure relief emergency door and the edge of the emergency opening are clamped between the front frame and the rear frame.

[0010] A further technical solution of this utility model is: the buckle structure includes a buckle base and a buckle block, the buckle base is provided with a buckle groove, and the buckle block is engaged in the buckle groove.

[0011] A further technical solution of this utility model is as follows: a limiting protrusion is provided on the side wall of the card slot, and a limiting concave surface is provided on the card block. When the card block is engaged and inserted into the card slot, the limiting protrusion is located in the limiting concave surface.

[0012] A further technical solution of this utility model is: a tethering rope is provided between one side of the pressure relief emergency door and the edge of the emergency access opening, and the two ends of the tethering rope are fixedly connected to the edges of the pressure relief emergency door and the emergency access opening, respectively.

[0013] A further technical solution of this utility model is: one side of the pressure relief emergency door and / or the edge of the emergency passage is provided with a receiving groove for accommodating the mooring rope.

[0014] A further technical solution of this utility model is: a transparent observation window is provided on the pressure relief emergency door.

[0015] A further technical solution of this utility model is that decorative panels are provided on the surface of both the door body and the surface of the pressure relief emergency door.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention features an emergency exit in the middle of the door body, with a pressure relief emergency door installed at the exit. Under normal use, the pressure relief emergency door is integrated with the door body, forming a complete sliding door that effectively separates the aircraft cabin. In an emergency, if the sliding door becomes deformed, jammed, or malfunctions and cannot be opened, the pressure relief emergency door can be kicked open or broken open with other objects to open the emergency exit, allowing personnel to pass through smoothly. Therefore, this invention's sliding door provides emergency passage functionality while ensuring passenger privacy. Attached Figure Description

[0018] Figure 1 This is one of the three-dimensional schematic diagrams of a sliding door with emergency pressure relief function according to an embodiment of this utility model;

[0019] Figure 2 This is a second perspective view of a sliding door with emergency pressure relief function according to an embodiment of this utility model;

[0020] Figure 3 This is one of the explosion diagrams of a sliding door with emergency pressure relief function according to an embodiment of this utility model;

[0021] Figure 4 This is the second explosion diagram of a sliding door with emergency pressure relief function according to an embodiment of this utility model;

[0022] Figure 5 This is a front view schematic diagram of a sliding door with emergency pressure relief function in an embodiment of this utility model when the front frame is hidden;

[0023] Figure 6 This is a schematic diagram of the installation of a sliding door with emergency pressure relief function according to an embodiment of this utility model.

[0024] Meaning of the labels in the attached diagram:

[0025] 1-Door body; 2-Pressure relief emergency door; 3-Front frame; 4-Door lock; 5-Transparent observation window; 6-Rear frame; 7-Emergency exit; 8-Tethering rope; 9-Receiving groove; 10-Card seat; 11-Limiting protrusion; 12-Card slot; 13-Card block; 14-Limiting concave surface; 15-Gap; 16-Slide rail; 17-Ground lock; 18-Guide rail. Detailed Implementation

[0026] The present invention will be further described below with reference to embodiments.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Example:

[0031] like Figures 1 to 5 The image shows a sliding door with emergency depressurization function used on an aircraft according to this embodiment, which includes a door body 1.

[0032] An emergency exit 7 is provided in the middle of the door body 1. A pressure relief emergency door 2 is fixed in the emergency exit 1 by a connecting component. A gap 15 is provided between the edge of the pressure relief emergency door 2 and the edge of the emergency exit 7. In an emergency, if the sliding door is deformed and jammed or cannot be opened due to malfunction, the pressure relief emergency door 2 can be kicked open or smashed open with other objects to open the emergency exit 7, allowing personnel to pass through smoothly.

[0033] Both door body 1 and pressure relief emergency door 2 are made of composite materials to ensure sufficient strength while reducing overall weight. Both door body 1 and pressure relief emergency door 2 have decorative panels on their surfaces, which may be made of sound-insulating materials or coatings to improve sound insulation and further protect passenger privacy.

[0034] The connecting components of this embodiment include a front frame 3 and a rear frame 6. The front frame 3 and the rear frame 6 are located on the front and rear sides of the emergency access 7, respectively, and correspond to the edge of the pressure relief emergency door 2 and the edge of the emergency access 7. The front frame 3 and the rear frame 6 are connected together by a snap-fit ​​structure. The edge of the pressure relief emergency door 2 and the edge of the emergency access 7 are clamped between the front frame 3 and the rear frame 6, thereby fixing the pressure relief emergency door 2 in the emergency access 7 through the front frame 3 and the rear frame 6.

[0035] The snap-fit ​​structure includes a snap-fit ​​seat 10 and a snap-fit ​​block 13, with the snap-fit ​​block 13 made of rubber. In this embodiment, multiple snap-fit ​​seats 10 are provided on the inner side of the rear frame 6, distributed around the perimeter of the rear frame 6. Multiple snap-fit ​​blocks 13 are provided on the inner side of the front frame 3, distributed around the perimeter of the front frame 3. The positions of the snap-fit ​​seats 10 and snap-fit ​​blocks 13 correspond one-to-one. Figure 3 As shown, a card slot 12 is provided on the card holder 10, and limiting protrusions 11 are respectively provided on the upper and lower side walls of the card slot 12. The surface of the limiting protrusions 11 is an arc surface. Figure 4 As shown, the upper and lower sides of the card block 13 are respectively provided with limiting concave surfaces 14, and the limiting concave surfaces 14 are arc surfaces.

[0036] When the front frame 3 and the rear frame 6 are connected together, the card seat 10 and the card block 13 are both located in the gap 15 between the edge of the pressure relief emergency door 2 and the edge of the emergency passage 7. The card block 13 is engaged in the card slot 12, and the limiting protrusion 11 is located in the limiting concave surface 14 to achieve a stable connection.

[0037] The front frame 3 and the rear frame 6 are connected by a snap-fit ​​structure, so that when the pressure relief emergency door 2 is subjected to external impact, the front frame 3 and the rear frame 6 can be separated more easily, thus enabling the pressure relief emergency door 2 to be opened.

[0038] In this embodiment, a tethering rope 8 is provided between one side of the pressure relief emergency door 2 and the edge of the emergency exit 7. The two ends of the tethering rope 8 are fixedly connected to the edges of the pressure relief emergency door 2 and the emergency exit 7 respectively using screws. When the pressure relief emergency door 2 is opened by an external impact, it will flip open to the side under the action of the tethering rope 8, preventing it from flying forward, thus enhancing safety. Simultaneously, this embodiment also provides receiving grooves 9 on both the side of the tethering rope 8 on the pressure relief emergency door 2 and the edge of the tethering rope 8 on the emergency exit 7, allowing the tethering rope 8 to be accommodated within the receiving grooves 9.

[0039] In this embodiment, a transparent observation window 5 is provided on the pressure relief emergency door 2. Flight attendants can observe the situation in different cabin sections through the transparent observation window 5 to ensure the safety and comfort of passengers. The transparent observation window 5 is made of transparent and impact-resistant glass material to ensure that it is not easily broken in an emergency.

[0040] To better understand the installation of sliding doors, the following will further explain how to install sliding doors on a full-height partition: For example... Figure 6 As shown, slide rails 16 and guide rails 18 are respectively installed on the upper and lower sides of the personnel passage of the full-height partition. The upper and lower sides of the sliding door will slide and connect with the slide rails 16 and guide rails 18 to realize the sliding opening and closing function of the sliding door. The sliding door will be further equipped with a door lock 4 and a floor lock 17. When the sliding door is in the open state, the floor lock 17 can lock the sliding door to the floor of the aircraft cabin to prevent the sliding door from sliding and vibrating. When the sliding door is in the closed state, the door lock 4 can lock the sliding door to the side of the full-height partition.

[0041] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A sliding door with emergency depressurization function used on an aircraft, characterized in that: The device includes a door body, with an emergency exit and a pressure relief emergency door in the middle. The pressure relief emergency door is fixed in the emergency exit by a connecting assembly, and there is a gap between the edge of the pressure relief emergency door and the edge of the emergency exit.

2. The sliding door with emergency depressurization function used on an aircraft according to claim 1, characterized in that: The connecting assembly includes a front frame and a rear frame, which are located on the front and rear sides of the emergency opening, respectively, and correspond to the edges of the pressure relief emergency door and the emergency opening. The front frame and the rear frame are connected together by a snap-fit ​​structure, and the edges of the pressure relief emergency door and the emergency opening are clamped between the front frame and the rear frame.

3. The sliding door with emergency depressurization function used on an aircraft according to claim 2, characterized in that: The buckle structure includes a buckle base and a buckle block. The buckle base is provided with a buckle slot, and the buckle block is engaged in the buckle slot.

4. The sliding door with emergency depressurization function used on an aircraft according to claim 3, characterized in that: The side wall of the card slot is provided with a limiting protrusion, and the card block is provided with a limiting concave surface. When the card block is engaged and inserted into the card slot, the limiting protrusion is located in the limiting concave surface.

5. The sliding door with emergency depressurization function used on an aircraft according to claim 1, characterized in that: A tether rope is provided between one side of the pressure relief emergency door and the edge of the emergency opening, and the two ends of the tether rope are fixedly connected to the edges of the pressure relief emergency door and the emergency opening, respectively.

6. The sliding door with emergency depressurization function used on an aircraft according to claim 5, characterized in that: One side of the pressure relief emergency door and / or the edge of the emergency access opening is provided with a receiving groove for accommodating the mooring rope.

7. The sliding door with emergency depressurization function used on an aircraft according to claim 1, characterized in that: The pressure relief emergency door is equipped with a transparent observation window.

8. The sliding door with emergency depressurization function used on an aircraft according to claim 1, characterized in that: Both the surface of the door body and the surface of the pressure relief emergency door are provided with decorative panels.