Inboard quick release and quick connection mechanism of aircraft cabin

Abstract

The application discloses an aircraft cabin embedded quick-release and quick-connection mechanism and relates to the technical field of flanges of cabins. The aircraft cabin embedded quick-release and quick-connection mechanism comprises upper U-shaped sliding blocks, lower U-shaped sliding blocks, trapezoidal sliding blocks, a small end of a cabin and a large end of the cabin are connected together through flanges inside the cabin, the upper U-shaped sliding blocks and the lower U-shaped sliding blocks are both slidingly connected and clamped on the flanges, one motor is connected to each side of the large end of the cabin, the motor drives a lead screw to rotate through a gear, the lead screw is rotationally connected to the large end of the cabin, the lead screw is rotationally connected to the trapezoidal sliding blocks, the trapezoidal sliding blocks move linearly along guide columns along with the rotation of the lead screw, one sliding rail is arranged on each side of the trapezoidal sliding blocks, one sliding block is arranged on each end of the upper U-shaped sliding blocks and the lower U-shaped sliding blocks, and the sliding rails on one trapezoidal sliding block are slidingly and clampingly connected to the two sliding blocks. The aircraft cabin embedded quick-release and quick-connection mechanism realizes quick connection and separation of flanges of two cabin sections, is simple to operate, saves a large amount of time and improves dismounting efficiency.

Description

Technical Field

[0001] This invention belongs to the field of flange technology for cabins, and more specifically, relates to an embedded quick-release and quick-connect mechanism for aircraft cabins. Background Technology

[0002] A flange connection is a detachable joint where two pipes, fittings, or equipment are first secured to separate flanges, then a gasket is placed between the two flanges, and finally bolts are used to tighten the flanges together. It allows for connections between stationary pipes and rotating or reciprocating equipment. Currently, flange connections are primarily used between two sections due to their simple structure, reliable connection, and ability to withstand significant external forces. However, most flange connections rely on bolts, and the large number of bolts can be inconvenient in practical use.

[0003] Regarding existing flange clamping technology, the invention patent CN103261770A, "Flange Pipe Connector," proposes an apparatus and method that allows flange joint clamping without removing existing bolts or other fasteners. However, the bolted connection used still suffers from the problem of time-consuming bolt connection. Furthermore, while the invention patent CN106224667A, "A Flange with Quick and Secure Connection," reduces the number of bolts used and improves efficiency to some extent, it does not completely abandon the use of bolts, and fixing and disassembling are still not entirely convenient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an embedded quick-release and quick-connect mechanism for aircraft cabins, which realizes the rapid connection and separation of the flanges of two cabin sections without the use of bolts. It is easy to operate, saves a lot of time, and improves the efficiency of disassembly and assembly.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an embedded quick-release and quick-connect mechanism for an aircraft cabin, comprising an upper U-shaped slider, a lower U-shaped slider, and a trapezoidal slider. The end face of the small end of the cabin is connected to the end face of the large end of the cabin, and a flange is provided at the connection point. The flange is located inside the cabin. The upper U-shaped slider slides and clamps onto the upper half of the flange, and the lower U-shaped slider slides and clamps onto the lower half of the flange. A motor is fixedly connected to each side of the large end of the cabin, and the two motors are symmetrically arranged. The output end of each motor is connected to a first bevel gear, which meshes with a second bevel gear for transmission. The second bevel gear is sleeved and connected to one end of a lead screw, which is rotatably connected to the large end of the cabin. The other end of the lead screw extends freely and is screwed onto the trapezoidal slider. The trapezoidal slider is connected to two guide posts via a sliding sleeve. The guide posts are fixedly connected to the large end of the hull. The trapezoidal slider moves linearly along the guide posts as the lead screw rotates. There is a slide rail on each side of the trapezoidal slider. There is a slider at each end of the upper U-shaped slider and the lower U-shaped slider. The slide rails on both sides of the trapezoidal slider are respectively connected to the sliders on the upper and lower U-shaped sliders located on the same side. The two trapezoidal sliders move linearly at the same time. The slider on the upper U-shaped slider drives the upper U-shaped slider to move upward, and the slider on the lower U-shaped slider drives the lower U-shaped slider to move downward. At the same time, the upper U-shaped slider gradually clamps the upper half of the flange, and the lower U-shaped slider gradually clamps the lower half of the flange, completing the flange fixing. The trapezoidal slider moves linearly in the opposite direction, completing the flange separation.

[0006] Preferably, both the upper and lower U-shaped sliders are arc-shaped, matching the edge shape of the flange. Both the upper and lower U-shaped sliders have a continuous groove with a trapezoidal cross-section along their length. Both sides of the flange are inclined surfaces, and the two inclined surfaces of the groove contact the two sides of the flange.

[0007] Preferably, both the upper U-shaped slider and the lower U-shaped slider are provided with weight reduction grooves or weight reduction holes, which are located on the two inclined surfaces or the bottom surface of the groove.

[0008] Preferably, two slide rails are respectively set on the two inclined surfaces of the trapezoidal slider. The slide rails are through grooves with a T-shaped cross-section, and the sliders are T-shaped protrusions. The T-shaped protrusions are respectively set at both ends of the outer bottom surface of the upper U-shaped slider and at both ends of the outer bottom surface of the lower U-shaped slider. The T-shaped protrusions slide and move within the T-shaped through grooves.

[0009] Preferably, the interior of the large end of the cabin is provided with a reserved hole, through which the lead screw passes; the lead screw consists of five parts, including a threaded section, a first shaft platform, a smooth shaft section, a second shaft platform, and a connecting gear section in sequence. The threaded section passes through the trapezoidal slider and is threadedly connected to the trapezoidal slider. Two thrust bearings are connected on the smooth shaft section. One end face of the first thrust bearing presses on the first shaft platform, and the other end presses on one side of the reserved hole at the large end of the cabin. One end face of the second thrust bearing presses on the other side of the reserved hole, and the other end face of the second thrust bearing presses on one side of the bearing seat. The other side of the bearing seat presses on the side of the second shaft platform. The second gear is fixedly connected to the connecting gear section.

[0010] Preferably, the bearing housing is divided into a first bearing housing and a second bearing housing with the diameter of the lead screw as the dividing line, and the first bearing housing and the second bearing housing are connected together by bolts.

[0011] The beneficial effects of adopting the above technical solution are as follows:

[0012] 1. This invention uses an upper U-shaped slider, a lower U-shaped slider, and trapezoidal sliders on both sides to replace traditional screws to achieve rapid connection and separation of the inner flanges of two compartments. The operation is simple, saves a lot of time, and improves work efficiency.

[0013] 2. The contact surfaces between the flanges on the two compartments and the two U-shaped sliders are inclined surfaces. When the U-shaped sliders are in a fixed state, they are in a self-locking state on the inclined surfaces. That is, the axial tension of the compartment cannot cause the upper and lower U-shaped sliders to slide relative to each other. The entire mechanism can withstand a large axial external force on the compartment. At the same time, it can amplify the radial force on the smaller U-shaped slider into a larger flange clamping force. The axial external force on the compartment cannot be transmitted to the trapezoidal slider and the lead screw. The overall structure is very stable and safe, and has a long service life.

[0014] 3. In this invention, the screw thread connection to the trapezoidal slider is equivalent to the transmission method of the screw and nut, which has a certain self-locking performance. Furthermore, the trapezoidal slider is connected to the upper U-shaped slider and the lower U-shaped slider by a T-shaped slider and slide rail, which can amplify the small torque of the screw into a larger trapezoidal slider pressing force.

[0015] 4. The working surfaces of the upper and lower U-shaped sliders used for clamping in this invention are the upper and lower inclined surfaces of the entire flange of the cabin. At the same time, through the transmission and amplification of the force by the lead screw and the inclined surface, a large preload force can be provided to the flange.

[0016] 5. The force-applying components of this invention are located on both sides of the cabin, leaving ample space for other arrangements between the cabins. The upper and lower U-shaped sliders, while ensuring the provision of preload, are also designed with numerous slots to minimize weight. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the organization;

[0018] Figure 2 yes Figure 1 A magnified view of the area in direction A;

[0019] Figure 3 This is a partial explosion diagram of the lead screw and related parts;

[0020] Figure 4 This is a partial assembly diagram of the lead screw and related parts;

[0021] Figure 5 This is a schematic diagram of the lead screw structure;

[0022] Figure 6 This is a schematic diagram of the large end structure of the cabin;

[0023] Figure 7 This is a schematic diagram of the motor and related parts;

[0024] Figure 8 This is a schematic diagram of the upper U-shaped slider structure;

[0025] Figure 9 Here is a schematic diagram of the U-shaped slider structure;

[0026] Figure 10 This is a schematic diagram of the T-shaped slider;

[0027] In the diagram: 1. Small end of the cabin; 2. Large end of the cabin; 3. Upper U-shaped slider; 4. Lower U-shaped slider; 5. Trapezoidal slider; 6. Lead screw; 6-1. Threaded section; 6-2. First shaft platform; 6-3. Smooth shaft section; 6-4. Second shaft platform; 6-5. Connecting gear section; 7. Guide post; 8. Motor; 9. First bevel gear; 10. Motor shaft; 11. Second bevel gear; 12. Thrust bearing; 13. First bearing housing; 14. Second bearing housing; 15. Gear end cover; 16. Bolt. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] like Figure 1 As shown, the quick-release and quick-connect mechanism includes an upper U-shaped slider 3, a lower U-shaped slider 4, and a trapezoidal slider 5. The end face of the small end 1 of the cabin is connected to the end face of the large end 2 of the cabin. A flange is provided at the connection point. The flange is located inside the cabin, and the small end 1 and the large end 2 of the cabin are connected together through the flange. Figure 6 As shown, the upper part of the large end 2 of the cabin is an upward-protruding arc shape with vertical sides, and the lower part is a downward-protruding arc shape. The trapezoidal slider 5 and the lead screw 6 are set on the vertical parts on both sides of the large end 2 of the cabin.

[0030] The upper U-shaped slider 3 slides and clamps onto the upper half-circle flange, while the lower U-shaped slider 4 slides and clamps onto the lower half-circle flange. For example... Figure 8-9 As shown, both the upper U-shaped slider 3 and the lower U-shaped slider 4 have arc-shaped shapes to match the edge shape of the flange. A continuous groove with a trapezoidal cross-section is provided along the length of both the upper U-shaped slider 3 and the lower U-shaped slider 4. Both sides of the flange are beveled, and the two beveled surfaces of the groove contact the two beveled surfaces of the flange. Through the contact between the beveled surfaces, the two U-shaped sliders clamp the flanges of the two compartments. Both the upper U-shaped slider 3 and the lower U-shaped slider 4 are provided with weight-reducing grooves or holes, which are located on the two beveled surfaces or the bottom surface of the groove, minimizing weight while ensuring clamping force.

[0031] A motor 8 is fixedly connected to each side of the large end 2 of the cabin, and the two motors 8 are arranged symmetrically. Figure 2 and 7 As shown, the motor shaft 10 of the motor 8 is connected to a first bevel gear 9, which meshes with a second bevel gear 11 for transmission. The second bevel gear 11 is sleeved and connected to one end of the lead screw 6. The second bevel gear 11 is blocked by the gear end cover 15 on the outside of the gear end cover 15 to prevent it from falling off the lead screw 6.

[0032] The interior of the large end 2 of the cabin has a pre-drilled hole, through which the lead screw 6 passes. For example... Figure 5 As shown, the lead screw 6 consists of five parts, namely, a threaded section 6-1, a first shaft platform 6-2, a smooth shaft section 6-3, a second shaft platform 6-4, and a connecting gear section 6-5. Figure 3-4As shown, threaded section 6-1 passes through trapezoidal slider 5 and is threadedly connected to it. Two thrust bearings 12 are connected to the optical shaft section 6-3. One end face of the first thrust bearing 12 presses against the first shaft base 6-2, and the other end presses against one side of the reserved hole at the large end 2 of the cabin. One end face of the second thrust bearing 12 presses against the other side of the reserved hole, and the other end face presses against one side of the bearing seat. The other side of the bearing seat presses against the side of the second shaft base 6-4. The second gear 11 is fixedly connected to the connecting gear section 6-5. The two thrust bearings 12 fix the lead screw to the large end of the cabin, which not only restricts the axial displacement of the lead screw, but also does not affect the axial rotation of the lead screw. By using thrust ball bearings 12 in direct contact with the large end 2 of the cabin, the axial force on the lead screw 6 during rotation can be directly unloaded onto the large end 2 of the cabin, thereby ensuring the stability and safety of the structure. Specifically, the bearing housing is divided into a first bearing housing 13 and a second bearing housing 14 with the diameter of the lead screw 6 as the dividing line. The first bearing housing 13 and the second bearing housing 14 are connected together by bolts 16.

[0033] The trapezoidal slider 5 is slidably connected to two guide posts 7, which are fixedly connected to the large end 2 of the cabin. The trapezoidal slider 5 moves linearly along the guide posts 7 as the lead screw 6 rotates. Figure 10 As shown, a slide rail is provided on each side of the trapezoidal slider 5. The two slide rails are respectively set on the two inclined surfaces of the trapezoidal slider 5. The slide rail is a through groove with a T-shaped cross-section. The slider is a T-shaped protrusion. The T-shaped protrusions are respectively set at both ends of the outer bottom surface of the upper U-shaped slider 3 and the outer bottom surface of the lower U-shaped slider 4. The T-shaped protrusions slide within the T-shaped through groove. A slider is provided at both ends of the upper U-shaped slider 3 and the lower U-shaped slider 4. The slide rails on both sides of the trapezoidal slider 5 are slidably engaged with the sliders on the upper U-shaped slider 3 and the lower U-shaped slider 4 located on the same side.

[0034] When clamping the flange, the motor 8 rotates in the forward direction, driving the first gear 9 to rotate. The first gear 9 drives the second gear 11 to rotate, and the second gear 11 drives the lead screw 6 to rotate. The lead screw 6 drives the trapezoidal slider 5 to move linearly towards both sides of the cabin. The trapezoidal slider 5 drives the upper U-shaped slider 3 to move upward, and at the same time drives the lower U-shaped slider 4 to move downward. The upper U-shaped slider 3 gradually clamps the upper half of the flange, and the lower U-shaped slider 4 gradually clamps the lower half of the flange, completing the flange clamping and fixing work.

[0035] When separating the flange, the motor 8 rotates in the opposite direction, driving the first gear 9 to rotate. The first gear 9 drives the second gear 11 to rotate, and the second gear 11 drives the lead screw 6 to rotate. The lead screw 6 drives the trapezoidal slider 5 to move in a straight line toward the center of the cabin. The trapezoidal slider 5 drives the upper U-shaped slider 3 to move downward, and at the same time drives the lower U-shaped slider 4 to move upward. The upper U-shaped slider 3 gradually separates from the upper half of the flange, and the lower U-shaped slider 4 gradually separates from the lower half of the flange, completing the flange separation action.

[0036] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A quick-release and quick-connect mechanism embedded in an aircraft cabin, characterized in that, The system includes an upper U-shaped slider (3), a lower U-shaped slider (4), and a trapezoidal slider (5). The end face of the small end (1) of the cabin is connected to the end face of the large end (2) of the cabin. A flange is provided at the connection point. The flange is located inside the cabin. The upper U-shaped slider (3) is slidably clamped on the upper half-circle flange, and the lower U-shaped slider (4) is slidably clamped on the lower half-circle flange. A motor (8) is fixedly connected to each side of the large end (2) of the cabin. The two motors (8) are symmetrically arranged. The output end of each motor (8) is connected to a first bevel gear (9). The first bevel gear (9) meshes with a second bevel gear (11) for transmission. The second bevel gear (11) is sleeved and connected to one end of a lead screw (6). The lead screw (6) is rotatably connected to the large end (2) of the cabin. The other end of the lead screw (6) extends freely and is screwed to the trapezoidal slider (5). The trapezoidal slider (5) is slidably sleeved and connected to two guide posts (7). The guide post (7) is fixedly connected to the large end (2) of the cabin. The trapezoidal slider (5) moves linearly along the guide post (7) as the lead screw (6) rotates. A slide rail is provided on both sides of the trapezoidal slider (5). A slider is provided at both ends of the upper U-shaped slider (3) and the lower U-shaped slider (4). The slide rails on both sides of the trapezoidal slider (5) are connected to the sliders on the upper U-shaped slider (3) and the lower U-shaped slider (4) on the same side. The two trapezoidal sliders (5) move linearly at the same time. The slider on the upper U-shaped slider (3) drives the upper U-shaped slider (3) to move upward, and the slider on the lower U-shaped slider (4) drives the lower U-shaped slider (4) to move downward. At the same time, the upper U-shaped slider (3) gradually clamps the upper half of the flange, and the lower U-shaped slider (4) gradually clamps the lower half of the flange, thus completing the flange fixing. The trapezoidal slider (5) moves linearly in the opposite direction, thus completing the flange separation.

2. The aircraft cabin embedded quick-release and quick-connect mechanism according to claim 1, characterized in that, The upper U-shaped slider (3) and the lower U-shaped slider (4) are both arc-shaped, which are compatible with the edge shape of the flange. A long groove with a trapezoidal cross-section is provided along the length direction of the upper U-shaped slider (3) and the length direction of the lower U-shaped slider (4). Both sides of the flange are inclined surfaces, and the two inclined surfaces of the groove are in contact with the two sides of the flange.

3. The aircraft cabin embedded quick-release and quick-connect mechanism according to claim 2, characterized in that, Both the upper U-shaped slider (3) and the lower U-shaped slider (4) are provided with weight reduction grooves or weight reduction holes, which are set on the two inclined surfaces or the bottom surface of the groove.

4. The aircraft cabin embedded quick-release and quick-connect mechanism according to claim 1, characterized in that, Two slide rails are respectively set on the two inclined surfaces of the trapezoidal slider (5). The slide rail is a through groove with a T-shaped cross section. The slider is a T-shaped protrusion. The T-shaped protrusions are respectively set on the two ends of the outer bottom surface of the upper U-shaped slider (3) and the two ends of the outer bottom surface of the lower U-shaped slider (4). The T-shaped protrusions slide and move in the T-shaped through groove.

5. The aircraft cabin embedded quick-release and quick-connect mechanism according to claim 1, characterized in that, The interior of the large end (2) of the cabin is provided with a reserved hole, through which the lead screw (6) passes; the lead screw (6) consists of five parts, including the threaded section (6-1), the first shaft platform (6-2), the optical shaft section (6-3), the second shaft platform (6-4), and the connecting gear section (6-5) in sequence. The threaded section (6-1) passes through the trapezoidal slider (5) and is threadedly connected to the trapezoidal slider (5). Two thrust bearings (12) are connected on the optical shaft section (6-3). One end face of the first thrust bearing (12) is pressed on the first shaft platform (6-2), and the other end is pressed on one side of the reserved hole of the large end (2) of the cabin. One end face of the second thrust bearing (12) is pressed on the other side of the reserved hole, and the other end face of the second thrust bearing (12) is pressed on one side of the bearing seat. The other side of the bearing seat is pressed on the side of the second shaft platform (6-4). The second bevel gear (11) is fixedly connected to the connecting gear section (6-5).

6. The aircraft cabin embedded quick-release and quick-connect mechanism according to claim 5, characterized in that, The bearing housing is divided into a first bearing housing (13) and a second bearing housing (14) with the diameter of the lead screw (6) as the dividing line. The first bearing housing (13) and the second bearing housing (14) are connected together by bolts (16).

Images