Sliding door for aircraft cabin

Abstract

The sliding door is characterized in that an upper sliding device comprises a pulley groove, a pulley device, a pulley fixing seat, a fastening screw and an embedded nut, a bearing plate is mounted on a ceiling of the cabin, the pulley groove is connected through a group of the fastening screw and the embedded nut which are matched with each other, and the fastening screw upwards penetrates through the bearing plate from the pulley groove. The pulley groove is connected with an embedded nut mounted on a ceiling of a cabin, the pulley fixing seat is connected through another group of fastening screws and embedded nuts which are matched with each other, the fastening screws are downwards connected with the embedded nuts mounted on the top surface of the panel from the pulley fixing seat, and the pulley device is connected between the pulley groove and the pulley fixing seat; the lower sliding device comprises a sliding rail groove and a guide block, the sliding rail groove is formed in the bottom face of the panel, a notch is formed in the bottom face of the sliding rail groove, the guide block is fixed to the floor, and the upper end of the guide block is located in the notch. The sliding door moves stably and smoothly in the single direction, the limited space of an aircraft cabin is effectively utilized, and the structure is reliable.

Description

Technical Field

[0001] The present application relates to the technical field of sliding doors, and in particular to a sliding door for aircraft cabins. Background Art

[0002] When designing aircraft cabin equipment structures, doors and doorframes are required for partitions, equipment rooms, and lavatories. This leads to an increasing demand for single-leaf, folding, and sliding doors. However, aircraft cabin space is limited, and single-leaf doors occupy a large rotational space, preventing the presence of other equipment during the opening and closing process. Folding doors are complex to install and require a high cost. Furthermore, standard sliding doors currently on the market do not meet the requirements for aircraft cabin installation. Utility Model Content

[0003] Purpose of the utility model: The purpose of this application is to provide a sliding door for aircraft cabins, which saves space, has a solid structure, is easy to install, and has strong maintainability.

[0004] The cam is secured to the bottom of the cam and is secured to the bottom of the cam, and the cam is secured to the bottom of the cam.

[0005] Working principle: When the sliding door needs to be opened or closed, the force applied to the panel causes the pulley device to slide along the pulley groove. At the same time, the slide rail groove slides under the limit of the guide block. The sliding is achieved through the interaction between the upper sliding device and the pulley groove, and the lower sliding device and the slide rail groove, ensuring the smooth movement of the panel.

[0006] Furthermore, the pulley device includes a pulley bracket, a pulley seat, and a pulley. The pulley seat is installed above the pulley bracket and fixed thereto. At least one pulley is installed on the pulley seat to improve sliding stability and load-bearing capacity. The single-side end portion of the pulley seat is divided into a lower bending angle. The pulley bracket is fixed above the pulley fixing seat and thereto. The pulley seat is located in the pulley groove. The pulley rolls in contact between its upper top surface and lower bottom surface in the pulley groove. The lower bending angle contacts the lower bottom surface of the pulley groove. The contact between the lower bending angle and the lower bottom surface of the pulley groove plays a role in assisting sliding. In particular, in the event of pulley failure, when the panel moves, the lower bending angle and the lower bottom surface of the pulley groove form a sliding movement, and can also maintain the sliding force required for the panel to move.

[0007] Furthermore, the longitudinal section of the pulley bracket is a "J" shape, and the longitudinal section of the pulley fixing seat is a "C" shape. The pulley bracket is horizontally inserted into the pulley fixing seat, and the "J"-shaped card is arranged in the "C" shape to fix the two together. The two are clearance-fitted, so the pulley bracket can be more easily inserted into or removed from the pulley fixing seat, which is convenient for installation and disassembly.

[0008] Furthermore, the rolling surface of the pulley is made of wear-resistant material, ensuring that the pulley maintains good performance and service life during long-term use.

[0009] Furthermore, the four sides of the panel are wrapped with edging profiles, and the side of the panel close to the door is provided with an anti-collision rubber pad to reduce the collision and friction between the panel and surrounding components and enhance its impact resistance.

[0010] Furthermore, there are two guide blocks, which are located at both ends of the panel closed position. When the sliding door is closed, the panel is supported by the two guide blocks at the same time. When the sliding door is opened, the panel only needs to slide with the cooperation of one guide block, which reduces the offset of the panel during the sliding process. An accessible walkway is formed between the two guide blocks, which effectively reduces the risk of passengers tripping when walking in and out when the sliding door is open.

[0011] Furthermore, the depth of the embedded holes for installing the embedded nuts on the cabin ceiling and the panel is 10 mm.

[0012] Furthermore, the depth of the notch of the slide rail groove is 16 to 18 mm.

[0013] Furthermore, the supporting plate is an aluminum alloy plate with a thickness of 1 to 1.2 mm.

[0014] Furthermore, the cabin ceiling adopts prepreg sandwich aramid paper honeycomb structure panel.

[0015] Beneficial effects: The advantages of the utility model are: the sliding door moves stably and smoothly in a single direction, allowing limited aircraft cabin space to be more effectively utilized, with a reliable structure and smooth sliding; the sliding door is easy to install, and any faulty parts of the sliding door can be quickly repaired or replaced during aircraft maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the connection of the sliding door in the aircraft cabin;

[0017] Figure 2 for Figure 1 Right view of;

[0018] Figure 3 for Figure 2 AA section view;

[0019] Figure 4 for Figure 1 Disassembly structure diagram;

[0020] Figure 5 for Figure 3 Partial view B;

[0021] Figure 6 for Figure 4 Partial view C;

[0022] Figure 7 This is the disassembled structural diagram of the upper sliding device. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] A sliding door for aircraft cabin, combined with Figure 1 、 3 As shown, it includes a panel 1, an upper sliding device 2, a lower sliding device 3, and a bearing plate 4. The panel 1 is connected to the cabin ceiling 7 through the upper sliding device 2, and the panel 1 is connected to the floor 8 through the lower sliding device 3, so that the sliding door can be installed in the aircraft cabin. The cabin ceiling 7 is made of a honeycomb structure board made of prepreg sandwiched with aramid paper. Due to its special structure, if the upper sliding device 2 is directly connected to the cabin ceiling 7, the local bearing capacity of the cabin ceiling 7 will be insufficient and the integrity of the honeycomb structure will be destroyed. Therefore, a bearing plate 4 is provided on the surface of the cabin ceiling 7, and the bearing plate 4 is an aluminum alloy plate with a thickness of 1 to 1.2 mm, preferably 1.1 mm. The upper sliding device 2 is below the bearing plate 4 and is connected to the cabin ceiling 7 through the bearing plate 4 for transition, which can disperse and evenly distribute the force and enhance the bearing capacity.

[0025] Combined with attachment Figures 2 to 5As shown, the upper sliding device 2 includes a pulley groove 21, a pulley device 22, a pulley fixing seat 23, a fastening screw 24, and an embedded nut 25. The pulley device 22 is connected between the pulley groove 21 and the pulley fixing seat 23, and is combined with the attached Figure 7 As shown, the pulley device 22 includes a pulley bracket 221, a pulley seat 222, and a pulley 223. The pulley seat 222 is mounted above the pulley bracket 221 and fixed thereto. At least one pulley 223 is mounted on the pulley seat 222. When there are more than one pulley 223, multiple pulleys 223 are installed in parallel, and a single-side end portion of the pulley seat 222 is divided into a lower bent angle 224. The pulley seat 222 is connected to the pulley groove 21. The pulley 223 rolls in contact between its upper top surface and lower bottom surface in the pulley groove 21. The rolling surface of the pulley 223 is made of wear-resistant material, ensuring that the pulley 223 maintains good performance and service life during long-term use. The lower bent angle 224 contacts the lower bottom surface of the pulley groove 21. When the pulley seat 222 slides in the pulley groove 21, the lower bent angle 224 and the lower bottom surface of the pulley groove 21 also slide relative to each other. The pulley bracket 221 is fixed to the pulley fixing seat 23 above it, and the longitudinal section of the pulley bracket 221 is a "J" shape, and the longitudinal section of the pulley fixing seat 23 is a "C" shape. The pulley bracket 221 is inserted horizontally into the pulley fixing seat 23, and the "J" shape is clamped in the "C" shape to fix the two together. It is a clearance fit, so the pulley bracket 221 can be more easily inserted into the pulley fixing seat 23 and removed from the pulley fixing seat 23, which is convenient for installation and disassembly. The pulley groove 21 is connected by a set of matching fastening screws 24 and embedded nuts 25. The embedded nuts 25 are installed on the cabin ceiling 7. The depth of the embedded hole for installing the embedded nuts 25 is 10 mm. The fastening screws 24 are passed upward from the pulley groove 21 to the bearing plate 4, and then extend into the embedded nuts 25 for connection. The pulley fixing seat 23 is connected by another set of matching fastening screws 24 and embedded nuts 25. The embedded nuts 25 are installed on the top surface of the panel 1. The fastening screws 24 are passed downward from the pulley fixing seat 23 and then extend into the embedded nuts 25 for connection. Then the panel 1 is connected to the bearing plate 4 and the cabin ceiling 7 through the upper sliding device 2.

[0026] A pulley device 22 can be installed at both ends of the top surface of the panel 1, and the pulley device 22 forms a reliable upper connection for the panel.

[0027] Combined with attachment Figures 2-4As shown in Figures 6 and 7, the sliding device 3 includes a slide rail groove 31 and a guide block 32. Two guide blocks 32 are provided, one at each end of the closed position of the panel 1. The guide blocks 32 are fixed to the floor 8. The slide rail groove 31 is installed on the bottom surface of the panel 1. A notch 33 is provided on the bottom surface of the slide rail groove 31. The depth of the notch 33 is 16 to 18 mm, preferably 17 mm. The upper end of the guide block 32 is located in the notch 33. When the sliding door is closed, the panel 1 is supported by both guide blocks 32. When the sliding door is opened, the panel 1 only needs to slide with the cooperation of one guide block 32. This not only reduces the deviation of the panel 1 during the sliding process, but also forms an barrier-free walkway between the two guide blocks 32, effectively reducing the risk of passengers tripping when walking in and out when the sliding door is open.

[0028] Combined with attachment Figure 5 As shown, the four sides of the panel 1 are wrapped with edging profiles 5, and an anti-collision rubber pad 6 is provided on the side of the panel 1 close to the door to reduce the collision and friction between the panel and surrounding components and enhance its impact resistance.

[0029] The sliding door for an aircraft cabin of the present invention ensures stable and smooth movement of the sliding door in a single direction through the cooperation of the pulley groove and the pulley device in the upper sliding device, and the slide rail groove and the guide block in the lower sliding device, so that the limited aircraft cabin space can be more effectively utilized. The structure is reliable, the sliding is smooth, and the installation is convenient. During aircraft maintenance, any faulty parts of the sliding door can be quickly repaired or replaced.

Claims

1. A sliding door for an aircraft cabin, comprising a panel (1), an upper sliding device (2), and a lower sliding device (3), characterized in that: The upper sliding device (2) includes a pulley groove (21), a pulley device (22), a pulley fixing seat (23), a fastening screw (24), and an embedded nut (25). The bearing plate (4) is installed on the cabin ceiling. The pulley groove (21) is connected by a group of matching fastening screws (24) and embedded nuts (25). The fastening screw (24) is passed upward from the pulley groove (21) to the bearing plate (4) and is connected to the embedded nut (25) installed on the cabin ceiling. The pulley fixing seat (23) is connected by another group of matching fastening screws (24) and embedded nuts (25). The nut (25) is connected, the fastening screw (24) extends downward from the pulley fixing seat (23) and is connected to the embedded nut (25) installed on the top surface of the panel (1), and the pulley device (22) is connected between the pulley groove (21) and the pulley fixing seat (23); the lower sliding device (3) includes a slide rail groove (31) and a guide block (32), the slide rail groove (31) is installed on the bottom surface of the panel (1), and a notch (33) is provided on the bottom surface of the slide rail groove (31), and the guide block (32) is fixed on the floor, and the upper end of the guide block (32) is located in the notch (33).

2. The sliding door for an aircraft cabin according to claim 1, characterized in that: The pulley device (22) comprises a pulley bracket (221), a pulley seat (222), and a pulley (223). The pulley seat (222) is mounted above the pulley bracket (221) and fixed thereto. At least one pulley (223) is mounted on the pulley seat (222). A single-side end portion of the pulley seat (222) is divided into a lower bending angle (224). The pulley bracket (221) is fixed above the pulley fixing seat (23). The pulley seat (222) is located in the pulley groove (21). The pulley (223) rolls in contact between the upper top surface and the lower bottom surface of the pulley groove (21). The lower bending angle (224) contacts the lower bottom surface of the pulley groove (21).

3. The sliding door for an aircraft cabin according to claim 2, characterized in that: The pulley bracket (221) has a longitudinal section in the shape of a Chinese character "J", and the pulley fixing seat (23) has a longitudinal section in the shape of a Chinese character "C". The pulley bracket (221) is inserted into the pulley fixing seat (23) transversely, and the Chinese character "J" is clamped in the Chinese character "C" to securely connect the two.

4. The sliding door for an aircraft cabin according to claim 2, characterized in that: The rolling surface of the pulley (223) is made of wear-resistant material.

5. The sliding door for an aircraft cabin according to claim 1, characterized in that: The four sides of the panel (1) are wrapped with edging profiles (5), and an anti-collision rubber pad (6) is provided on the side of the panel (1) close to the door.

6. The sliding door for an aircraft cabin according to claim 1, characterized in that: The guide blocks (32) are provided in two pieces, and are respectively located at the two end portions of the closed position of the panel (1), and a barrier-free walkway is formed between the two guide blocks (32).

7. The sliding door for an aircraft cabin according to claim 1, characterized in that: The depth of the embedded hole for installing the embedded nut (25) on the cabin ceiling and the panel (1) is 10 mm.

8. The sliding door for an aircraft cabin according to claim 1, characterized in that: The depth of the notch (33) of the slide rail groove (31) is 16-18 mm.

9. The sliding door for an aircraft cabin according to claim 1, characterized in that: The bearing plate (4) is an aluminum alloy plate with a thickness of 1 to 1.2 mm.

10. The sliding door for an aircraft cabin according to claim 1, characterized in that: The cabin ceiling is made of prepreg sandwich aramid paper honeycomb structural panels.

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