Outer circulation ventilation structure of aircraft

Abstract

The utility model discloses an aircraft outer circulation ventilation structure, and relates to the field of aircraft circulation ventilation technology, the aircraft outer circulation ventilation structure comprises a cabin door and a circulation ventilation device, the circulation ventilation device is sleeved with a shell, T-shaped sliding grooves are formed in the two sides of an inner cavity of the shell, and a locking mechanism is arranged on one side of each T-shaped sliding groove; the locking mechanism comprises a fixing plate fixedly arranged on the surface of one side of the opening portion of the T-shaped sliding groove, a pressing rod movably penetrates through one side of the fixing plate, a clamping plate is fixedly arranged on one side of the pressing rod, and a movable shaft is rotationally arranged in the middle of the clamping plate and slidably arranged in an inner cavity of a movable block. The external circulation device is more convenient to replace when being damaged or needing to be replaced according to different environments, so that the external circulation device is more convenient to disassemble and assemble.

Description

Technical Field

[0001] The present application relates to the field of aircraft circulation ventilation technology, and in particular to an aircraft external circulation ventilation structure. Background Art

[0002] The external circulation ventilation structure on the aircraft is mainly used to ensure the comfort of the aircraft's internal environment, good air quality, filter the external air when it enters, ensure the air quality, expel bacteria and odors inside the aircraft, etc. However, since the aircraft needs to fly in different environments, the aircraft's circulating ventilation device needs to be able to be replaced according to different environments. If it is not replaced in time according to the situation, it will cause damage to the circulation device. Often, the replacement of such a device is time-consuming and labor-intensive, and it is even troublesome to disassemble and assemble it. Utility Model Content

[0003] In order to improve the convenience of the external circulation device when it is damaged or needs to be replaced according to different environments, and to make the disassembly and assembly of the external circulation device more convenient, the present application provides an aircraft external circulation ventilation structure.

[0004] The present application provides an aircraft external circulation ventilation structure adopting the following technical solution:

[0005] An aircraft external circulation ventilation structure, comprising a cabin door and a circulation ventilation device, characterized in that: a shell is provided on the outside of the circulation ventilation device, two sides of the inner cavity of the shell are provided with T-shaped slide grooves, and a locking mechanism is provided on one side of the T-shaped slide groove;

[0006] The locking mechanism includes a fixed plate fixed on one side surface of the opening of the T-shaped slide groove, a pressing rod is movably provided on one side of the fixed plate, a clamping plate is fixed on one side of the pressing rod, a movable shaft is rotatably provided in the middle of the clamping plate, and the movable shaft is slidably provided in the inner cavity of the movable block.

[0007] By adopting the above technical solution, the pressing rod can drive the clamping plate to move back and forth longitudinally, and the clamping plate can drive the movable shaft to move, and the movable shaft drives the movable block to move.

[0008] Preferably, the locking mechanism also includes a horizontal bar fixed at the bottom of the T-shaped slide groove opening, one side of the horizontal bar is fixedly connected to one side of the T-shaped slide rod, and a plurality of triangular blocks are fixedly provided on the upper part of the horizontal bar, and a plurality of triangular blocks are clamped on the upper parts of limiting columns, a limiting rod is fixedly provided on one side of the limiting column, and the limiting rod movably passes through the surface of one side of the fixed plate and is fixedly connected to the movable block.

[0009] By adopting the above technical solution, the movable block drives the limit rod to move, and then drives the limit column to move, thereby releasing the triangular block, so that the triangular block can move together with the horizontal bar.

[0010] Preferably, a spring is sleeved on the outside of the limiting rod, a ring washer is fixedly arranged at one end of the spring, and the ring washer is fixedly arranged on the inner wall of one side of the fixing plate.

[0011] By adopting the above technical solution, the fixing connection between the ring washer and the fixing plate can provide good support for the spring, so that the spring can have a better support effect when it is deformed under force.

[0012] Preferably, a second rubber strip is glued to the inner wall of one side of the shell, and the second rubber strip is glued to the shock-absorbing pad.

[0013] By adopting the above technical solution, the provision of the second rubber strip can improve the sealing performance of the device and have a certain anti-friction performance. The shock-absorbing pad can undergo a certain deformation under force and can reduce certain damage caused by hard contact.

[0014] Preferably, a sealing ring is fixedly provided on one side of the circulating ventilation device, and a first rubber strip is glued to the inner surface of the sealing ring.

[0015] By adopting the above technical solution, the sealing ring can make the circulating ventilation device fit better with the shell, and adding the first rubber strip improves the sealing performance between the shell and the circulating ventilation device.

[0016] Preferably, T-shaped sliding bars are fixedly provided at the middle of both sides of the circulating ventilation device, and the outer parts of the T-shaped sliding bars are slidably arranged with the T-shaped sliding grooves and are limited to each other.

[0017] By adopting the above technical solution, the surfaces of the T-shaped slide bar and the T-shaped slide groove are both smooth planes, which can reduce friction and improve the sliding effect. Moreover, adding lubricant between the T-shaped slide groove and the T-shaped slide bar can reduce friction and avoid unnecessary wear.

[0018] Preferably, a water outlet is provided through the lower portion of the circulating ventilation device, and the water outlet is communicated with the drain outlet.

[0019] By adopting the above technical solution, the drain outlet can discharge rainwater entering the circulating ventilation device to the drain outlet, effectively solving the problem of accumulated water affecting the operation of the circulating ventilation device.

[0020] Preferably, the drain outlet is provided at the lower part of the sealing ring and is opposite to the downspout, and a slope is provided between the downspout and the drain outlet to facilitate the flow of rainwater.

[0021] By adopting the above technical solution, the slope can make rainwater drain from the sewer outlet to the drain outlet more quickly and smoothly, and there will be no sedimentation phenomenon, which will cause water accumulation and affect performance.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Using two drains and outlets can more effectively drain water in rainy days. In order to better drain water, a slope is set between the outlet and the drain so that rainwater can be discharged outward with gravity;

[0024] 2. By pressing the rod to move to one side of the splint, the splint is driven to move together. The movement of the splint drives the movable shaft to move to the lowest point of the S-shaped inner cavity of the movable block. The movable block drives the limit rod to move upward, and the limit rod drives the limit column to move upward together. The limit column just moves to the upper part of the triangular block, and the limit column squeezes the spring when it moves upward, and the ring gasket supports the spring when the spring is squeezed. When the limit column is separated from the triangular block, the horizontal bar can move outward with the T-shaped slide bar, so that the circulating ventilation device can be disassembled more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the location of the circulating ventilation device of this application;

[0026] Figure 2 This is a schematic diagram of the external structure of a circulating ventilation device of the present application;

[0027] Figure 3 It is a schematic diagram of the internal cross-section of the drainage measures of this application;

[0028] Figure 4 This is a schematic diagram of the housing structure of this application;

[0029] Figure 5 This is a schematic diagram of the locking mechanism position of this application;

[0030] Figure 6 This is a schematic diagram of the locking mechanism structure of this application.

[0031] Reference numerals: 1, hatch; 2, circulating ventilation device; 3, T-shaped sliding rod; 4, sealing ring; 5, first rubber strip;

[0032] 6. Locking mechanism; 61. Horizontal bar; 62. Triangular block; 63. Limiting column; 64. Spring; 65. Ring washer; 66. Movable block; 67. Movable shaft; 68. Clamp; 69. Pressing rod; 610. Fixed plate; 611. Limiting rod;

[0033] 7. Drain outlet; 8. Drain outlet; 9. Slope; 10. T-shaped slide; 11. Shock-absorbing pad; 12. Second rubber strip; 13. Outer shell. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The embodiment of the present application discloses an aircraft external circulation ventilation structure.

[0036] Example 1

[0037] Reference Figure 1 , 2 , 3, 4, an aircraft external circulation ventilation structure, comprising doors 1 on both sides of the flight device and a circulation ventilation device 2 installed on the side of the door 1, and the circulation ventilation device 2 is located on the side outside the door 1 and is fixed with a sealing ring 4, and the inner surface of the sealing ring 4 is glued to the outer surface of the first rubber strip 5, and two symmetrical drains 8 are penetrated through the lower part of the circulation ventilation device 2 on one side of the door 1, the two symmetrical drains 8 are interconnected with two drains 7, and the two drains 7 are opened on the lower surface of the sealing ring 4 on one side of the drain 8, and the positions of the two drains 7 correspond to the two drains 8, and slopes 9 are provided between the two drains 8 and the two drains 7 to facilitate rainwater to flow out.

[0038] A shell 13 is provided on the outside of the circulating ventilation device 2, and the outer surface of the circulating ventilation device 2 is fitted with the inner surface of the shell 13, and the circulating ventilation device 2 can slide on the inner surface of the shell 13, and the inner wall surface of the shell 13 away from the drain outlet 7 is glued to the outer surface of the second rubber strip 12, and the second rubber strip 12 is located in the middle of the one side surface of the locking mechanism 6 and is glued and fixed to the one side surface of the shock-absorbing pad 11, and two symmetrical and structurally identical T-shaped grooves 10 are opened in the middle of both sides of the inner cavity of the shell 13, and are welded and fixed to the one side surface of the T-shaped slide bar 3 in the middle of both sides of the outer surface of the circulating ventilation device 2, and the outer surface of the T-shaped slide bar 3 is fitted with the inner surface of the T-shaped groove 10 and slidably arranged with each other, and the T-shaped groove 10 and the T-shaped slide bar 3 can limit each other.

[0039] Through the above-mentioned arrangement, the sealing ring 4 and the first rubber strip 5 can make the circulating ventilation device 2 and the shell 13 fit better and seal better, and the second rubber strip 12 can also make the circulating ventilation device 2 and the shell 13 fit better and seal better, and the two drain ports 8 and the drain port 7 can drain water more effectively in rainy days, and for better drainage, a slope 9 is set between the drain port 7 and the drain port 8, which can make rainwater discharge outward with gravity, and the shell 13 can facilitate the installation and disassembly of the circulating ventilation device 2, and the circulating ventilation device 2 can be replaced by simply taking the circulating ventilation device 2 out of the shell 13, which greatly improves work efficiency and time, and the shock-absorbing pad 11 can provide a good extrusion deformation effect when the T-shaped slide bar 3 drives the horizontal bar 61 to move, reducing hard friction, and the T-shaped slide bar 3 and the T-shaped slide groove 10 slide with each other and limit each other, which can make the circulating ventilation device 2 slide better in the shell 13 and provide a certain support effect for the sliding of the circulating ventilation device 2 in the shell 13.

[0040] Reference Figure 4 , 5 6. Two locking mechanisms 6 with the same structure and the same installation method are arranged on the side of the two T-shaped chutes 10 away from the drain port 8. The locking mechanism 6 includes a fixing plate 610 fixed on one side of the upper surface of the opening position of the T-shaped chute 10, and the fixing plate 610 is located on the surface of one side of the T-shaped slide bar 3 and is movably penetrated by the pressing rod 69, and the pressing rod 69 can reciprocate back and forth inside the fixing plate 610, and the surface of the pressing rod 69 away from the T-shaped slide bar 3 is welded and fixed to the clamping plate 68 located on the surface of one side of the T-shaped slide bar 3, and the clamping plate 68 is divided into two symmetrical plates, and the middle part of the inner surface of the two plates on the side of the clamping plate 68 away from the pressing rod 69 is movably penetrated by the movable shaft 67, and the movable shaft 67 is movably penetrated by the movable shaft 67. 7 is rotatably connected to the splint 68, and the outer surface of the movable shaft 67 is slidably arranged with the inner cavity surface of the movable block 66S, and the locking mechanism 6 also includes a horizontal bar 61 fixedly arranged on the bottom surface of the opening on the side of the T-shaped slide groove 10 away from the T-shaped slide bar 3, and the side surface of the horizontal bar 61 is abutted with the side surface of the shock-absorbing pad 11, and the side surface of the horizontal bar 61 away from the shock-absorbing pad 11 is fixedly connected with the side surface of the T-shaped slide bar 3, and the upper surface of the horizontal bar 61 is welded and fixed to the lower surfaces of several uniformly arranged triangular blocks 62, and the distance between the several triangular blocks 62 is exactly the diameter distance of the limiting column 63, so the limiting columns 63 clamped on the upper parts of the several triangular blocks 62 can be just clamped in the middle of two adjacent triangular blocks 62.

[0041] The surface of the side of the limiting column 63 away from the triangular block 62 is welded and fixed to the surface of the side of the limiting rod 611, and the end of the limiting rod 611 away from the limiting column 63 movably penetrates the surface of the side of the fixed plate 610 away from the movable block 66, and the diameter of the limiting column 63 is just the diameter of the hole penetrated by the fixed plate 610, but the diameter of the limiting column 63 is larger than the diameter of the limiting rod 611, and the surface of the side of the limiting rod 611 away from the limiting column 63 is welded and fixed to the surface of the side of the movable block 66 away from the movable shaft 67, and the limiting rod 611 is sleeved inside the spring 64, and the outer surface of the limiting rod 611 fits with the inner surface of the spring 64 and can slide, and the end of the spring 64 away from the limiting column 63 is fixed to the surface of one side of the ring gasket 65, and the outer surface of the ring gasket 65 is welded and fixed to the inner wall of the fixed plate 610 penetrated by the limiting rod 611, and the inner surface of the ring gasket 65 fits with the outer surface of the limiting rod 611 and can slide.

[0042] It should be noted that when the movable shaft 67 moves to the highest point in the inner cavity of the movable block 66S, the limit column 63 just abuts against the upper surface of the horizontal bar 61, and conversely, when the movable shaft 67 moves to the lowest point in the inner cavity of the movable block 66S, the limit column 63 is just at the upper part of the triangular block 62, and there is a certain gap between the limit column 63 and the highest point of the triangular block 62. The circulating ventilation device 2 and the cabin door 1 in this device are both existing technologies, and their structural principles are not repeated here.

[0043] Through the above arrangement, the pressing rod 69 moves toward the side of the splint 68 to drive the splint 68 to move together, and the movement of the splint 68 drives the movable shaft 67 to move to the lowest point of the S-shaped inner cavity of the movable block 66, and the movable block 66 drives the limiting rod 611 to move upward, and the limiting rod 611 drives the limiting column 63 to move upward together, and the limiting column 63 just moves to the upper part of the triangular block 62, and the limiting column 63 squeezes the spring 64 when moving upward, and the ring gasket 65 supports the spring 64 when the spring 64 is squeezed, and when the limiting column 63 is separated from the triangular block 62, the horizontal bar 61 can move outward with the T-shaped slide bar 3.

[0044] The implementation principle of an aircraft external circulation ventilation structure in an embodiment of the present application is as follows: when the staff finds that the circulation ventilation device 2 needs to be replaced, by pressing the pressing rod 69 located on the inner side of the cabin door 1, the pressing rod 69 drives the clamping plate 68 to move toward the side of the T-shaped sliding bar 3. At the same time, the clamping plate 68 drives the movable shaft 67 to move in the inner cavity of the movable block 66 and pushes the movable block 66 upward. When the movable block 66 moves upward, it will drive the limiting rod 611 to move upward together. When the limiting rod 611 moves upward, it drives the limiting column 63 to move upward. When the limiting column 63 moves upward, it will no longer limit the triangular block 62. At this time, the horizontal bar 61 is also released. At this time, the staff can push the circulation ventilation device 2 out of the outer shell 13, and the limiting column 63 is pushed back to its original position under the action of the spring 64. Through the cooperation between the T-shaped sliding bar 3 and the T-shaped sliding groove 10, the circulation ventilation device 2 can be easily pushed out.

[0045] At this time, the staff can take out the broken circulating ventilation device 2 and replace it with a new circulating ventilation device 2. The staff only needs to push the new circulating ventilation device 2 through the T-shaped slide bar 3 in the T-shaped slide groove 10 until the cross bar 61 abuts against the shock-absorbing pad 11, and the new circulating ventilation device 2 can no longer be pushed. When the cross bar 61 is pushed, the triangular block 62 will move together, and the inclined surface of the triangular block 62 can push the limit column 63 upward until the new circulating ventilation device 2 is completely stuck, and the replacement of the new circulating ventilation device 2 is completed.

[0046] When it rains during the flight, rainwater enters the circulating ventilation device 2 , and the rainwater flows along the inner wall of the circulating ventilation device 2 to the drain port 8 below due to gravity, and then is discharged to the drain port 7 along the slope 9 .

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An aircraft external circulation ventilation structure, comprising a cabin door (1) and a circulation ventilation device (2), characterized in that: The circulation ventilation device (2) is externally covered with a shell (13), the inner cavity of the shell (13) is provided with T-shaped slide grooves (10) on both sides, and a locking mechanism (6) is provided on one side of the T-shaped slide groove (10); The locking mechanism (6) comprises a fixing plate (610) fixedly mounted on a surface of one side of an opening of the T-shaped slide groove (10); a pressing rod (69) is movably arranged through one side of the fixing plate (610); a clamping plate (68) is fixedly mounted on one side of the pressing rod (69); a movable shaft (67) is rotatably arranged in the middle of the clamping plate (68); and the movable shaft (67) is slidably arranged in an inner cavity of a movable block (66).

2. An aircraft external circulation ventilation structure according to claim 1, characterized in that: The locking mechanism (6) further comprises a horizontal bar (61) fixedly arranged at the bottom of the opening of the T-shaped slide groove (10), one side of the horizontal bar (61) being fixedly connected to one side of the T-shaped slide bar (3), and a plurality of triangular blocks (62) being fixedly arranged on the upper part of the horizontal bar (61), the upper parts of the plurality of triangular blocks (62) being clamped with a limiting column (63), a limiting rod (611) being fixedly arranged on one side of the limiting column (63), the limiting rod (611) being movable and penetrating through a surface of one side of the fixed plate (610) and being fixedly connected to the movable block (66).

3. The aircraft external circulation ventilation structure according to claim 2, characterized in that: The limiting rod (611) is sleeved with a spring (64) on its exterior, and a ring washer (65) is fixedly disposed at one end of the spring (64), and the ring washer (65) is fixedly disposed on the inner wall of one side of the fixing plate (610).

4. The aircraft external circulation ventilation structure according to claim 1, characterized in that: A second rubber strip (12) is glued to the inner wall of one side of the outer shell (13), and the second rubber strip (12) is glued to the shock-absorbing pad (11).

5. The aircraft external circulation ventilation structure according to claim 1, characterized in that: A sealing ring (4) is fixedly provided on one side of the circulating ventilation device (2), and a first rubber strip (5) is glued to the inner surface of the sealing ring (4).

6. The aircraft external circulation ventilation structure according to claim 1, characterized in that: T-shaped sliding bars (3) are fixedly provided at the middle of both sides of the circulating ventilation device (2), and the outside of the T-shaped sliding bars (3) are slidably arranged with the T-shaped sliding grooves (10) and are mutually limited.

7. The aircraft external circulation ventilation structure according to claim 1, characterized in that: A water outlet (8) is provided through the lower part of the circulating ventilation device (2), and the water outlet (8) is communicated with the water outlet (7).

8. An aircraft external circulation ventilation structure according to claim 7, characterized in that: The drainage port (7) is provided at the lower part of the sealing ring (4) and is opposite to the downspout (8). A slope (9) is provided between the downspout (8) and the drainage port (7) to facilitate the flow of rainwater.

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