Locking mechanism of flight lock for cabin door

Abstract

The utility model provides a locking mechanism of a flight lock for a cabin door. The locking mechanism of the flight lock for the cabin door comprises the cabin door; the gear is rotationally connected to the middle position of the back face of the inner wall of the cabin door through a rotating buckle, a rotating disc is installed at one end of the front face of the gear, a connecting frame with a hole is installed on the outer surface of the rotating disc, a sealing cover is installed on the front face of the cabin door, and a limiting mechanism is installed at the position, close to the bottom, of the front face of the sealing cover; and the two second sliding rails are fixedly connected to the two sides of the inner wall of the cabin door correspondingly. According to the locking mechanism for the flight lock of the cabin door, the internal structures of the flight lock and the locking mechanism of the cabin door are simplified through the design, meanwhile, the four surfaces, making contact with an airplane body, of the cabin door can be well locked with the airplane body through the four locking blocks, the stability is improved, and the service life of the cabin door is prolonged. And when a fault occurs in the later period, quick maintenance can be realized only by dismounting the sealing cover, so that the maintenance difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flight locks, in particular to a locking mechanism of a flight lock for a cabin door. Background Technique

[0002] A cabin door is a door on an aircraft for personnel, goods and equipment to enter and exit, or a door opened on the bulkhead between each passage and the ship's side shell plate on a ship to ensure the passage of personnel, vehicles and materials.

[0003] The components of a cabin door flight lock include an inner handle assembly, an outer handle assembly, a lock body, a wire rope and a locking mechanism. The design of this lock structure aims to ensure the safe and reliable operation of the cabin door. After the cabin door is closed, the flight lock and the locking mechanism are required to lock the cabin door.

[0004] The traditional flight lock and locking mechanism have a complex structure, and the space inside the cabin door is limited. If a failure occurs, it increases the difficulty of later maintenance.

[0005] Therefore, it is necessary to provide a locking mechanism of a flight lock for a cabin door to solve the above technical problems. Content of the Utility Model

[0006] The utility model provides a locking mechanism of a flight lock for a cabin door, which solves the problems that the traditional flight lock and locking mechanism have a complex structure, are installed inside the cabin door with limited space, are not convenient for maintenance when a failure occurs, and increase the maintenance difficulty.

[0007] To solve the above technical problems, the locking mechanism of the flight lock for a cabin door provided by the utility model includes: a cabin door;

[0008] A gear, the gear is rotatably connected to the middle position on the back of the inner wall of the cabin door through a rotating buckle. One end of the front of the gear is provided with a rotating disc, the outer surface of the rotating disc is provided with a connecting frame with holes, the front of the cabin door is provided with a sealing cover, and a limiting mechanism is installed at a position close to the bottom of the front of the sealing cover;

[0009] Two second slide rails, the two second slide rails are respectively fixedly connected to both sides of the inner wall of the cabin door. One side of the two adjacent second slide rails is slidably connected with a first rack through a slide bar. The top and bottom of the inner wall of the cabin door are both provided with first slide rails. One side of the two adjacent first slide rails is slidably connected with a second rack through a slide bar. The opposite ends of the two second racks and the two first racks are fixedly connected with fixed discs, the other ends of the fixed discs are fixedly connected with locking blocks, and contact sensors are installed at the other ends of the locking blocks;

[0010] The rotating disk is fixed by bolts and is detachable. The rotating disk is located on the front of the sealing cover, and the sealing cover seals the front opening of the hatch. The sealing cover is located on the side close to the aircraft cabin. The two second slide rails and the two first slide rails are installed in layers and offset. For specific reference, Figure 2 , the backs of the two second slide rails and the two first slide rails are both connected to the back of the inner wall of the hatch through columns to increase stability. The positions of the locking openings and the locking blocks correspond to each other, facilitating the locking block to pass through. By rotating the gear, the two second racks and the two first racks can move in opposite directions. The contact sensor can monitor whether the locking block is locked in place. After the locking block is locked in place.

[0011] Preferably, an installation base is installed on the front of the sealing cover, and an alarm is installed on the front of the installation base;

[0012] The alarm gives a warning after the contact sensor detects that the locking block is not in place.

[0013] Preferably, a through hole is opened at the middle position on the front of the sealing cover, and locking openings are opened on the outer surface of the hatch;

[0014] The through hole facilitates the shaft at the connection of the rotating disk and the gear to pass through.

[0015] Preferably, the limiting mechanism includes an installation shell, and a sliding rod is installed at the top of the inner wall of the installation shell;

[0016] The other end of the sliding rod is connected to the bottom of the inner wall of the installation shell. An opening is provided on the front of the installation shell to allow the connection part of the slider and the movable frame to move.

[0017] Preferably, a slider is slidably connected to the outer surface of the sliding rod, and a spring is installed at the bottom of the slider;

[0018] The other end of the spring is connected to the bottom of the inner wall of the installation shell.

[0019] Preferably, a movable frame is installed on the front of the slider, and a lock is installed on the front of the movable frame;

[0020] The lock has a bolt that can be inserted into the hole of the connecting frame. After inserting it and pulling out the key, the connecting frame is locked inside the movable frame.

[0021] Compared with the related art, the locking mechanism of the flight lock for the hatch provided by the present utility model has the following beneficial effects:

[0022] The present utility model provides a locking mechanism for a flight lock of a cabin door. In order to facilitate the maintenance of the cabin door flight lock and the locking mechanism in case of failure, first, two sets of first slide rails and second slide rails are installed inside the cabin door, and the first slide rails and the second slide rails are installed in layers. Then, two second racks are installed on one adjacent side of the two first slide rails through slide bars, and two first racks are installed on one adjacent side of the two second slide rails through slide bars, so that the two first racks and the two second racks move in opposite directions when simultaneously stressed. At the opposite ends of the first rack and the second rack, locking blocks are installed through fixed disks, and the four locking blocks are aligned with the four locking ports on the outer surface of the cabin door, so that the locking blocks can pass through the locking ports and be inserted into the sockets at the position where the cabin door is installed on the aircraft fuselage, thereby locking the closed cabin door and the aircraft fuselage together. At the middle position where the two first racks and the two second racks meet, a rotatable gear is installed through a rotating buckle. Then, a sealing cover seals one side of the cabin door, and a rotating disk with a connecting frame is installed at the front end of the gear and on one side of the sealing cover. A limiting mechanism is also installed on the sealing cover. Through this design, the internal structure of the cabin door flight lock and the locking mechanism is simplified. At the same time, the four locking blocks can lock the four surfaces where the cabin door contacts the aircraft fuselage to the aircraft fuselage, increasing stability. In case of failure in the later stage, only the sealing cover needs to be removed for quick maintenance, reducing the maintenance difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. 1 is a schematic structural diagram of a preferred embodiment of the locking mechanism for the flight lock of the cabin door provided by the present utility model;

[0024] Figure 2 FIG. 2 is a schematic structural diagram of the rotating disk provided by the present utility model;

[0025] Figure 3 FIG. 3 is a schematic structural diagram of the gear provided by the present utility model;

[0026] Figure 4 FIG. 4 is provided by the present utility model Figure 2 An enlarged view of the position A shown in FIG. 1;

[0027] Figure 5 FIG. 5 is provided by the present utility model Figure 3 An enlarged view of the position B shown in FIG. 1.

[0028] Reference Numerals in the Figures: 1, hatch door; 2, sealing cover; 3, limiting mechanism; 301, mounting shell; 302, spring; 303, sliding rod; 304, lock; 305, movable frame; 306, slider; 4, connecting frame; 5, rotating disk; 6, mounting base; 7, alarm; 8, first slide rail; 9, first rack; 10, second rack; 11, slide bar; 12, second slide rail; 13, through hole; 14, locking hole; 15, gear; 16, rotating buckle; 17, contact sensor; 18, locking block; 19, fixed disk. Detailed Implementation Manner

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and the implementation manner.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of the locking mechanism of the flight lock for the hatch door provided by the present utility model; Figure 2 is a schematic structural diagram of the rotating disk provided by the present utility model; Figure 3 is a schematic structural diagram of the gear provided by the present utility model;

[0031] Figure 4 is provided by the present utility model Figure 2 is an enlarged view of the position A shown in the figure; Figure 5 is provided by the present utility model Figure 3 is an enlarged view of the position B shown in the figure. The locking mechanism of the flight lock for the hatch door includes: hatch door 1;

[0032] Gear 15, the gear 15 is rotatably connected to the middle position on the back surface of the inner wall of the hatch door 1 through a rotating buckle 16. One end of the front surface of the gear 15 is provided with a rotating disk 5. The outer surface of the rotating disk 5 is provided with a connecting frame 4 with holes. The front surface of the hatch door 1 is provided with a sealing cover 2. The limiting mechanism 3 is installed at a position close to the bottom of the front surface of the sealing cover 2;

[0033] Two second slide rails 12, the two second slide rails 12 are respectively fixedly connected to both sides of the inner wall of the hatch door 1. One adjacent surface of the two second slide rails 12 is slidably connected with a first rack 9 through a slide bar 11. The top and bottom of the inner wall of the hatch door 1 are both provided with first slide rails 8. One adjacent side of the two first slide rails 8 is slidably connected with a second rack 10 through a slide bar 11. The opposite ends of the two second racks 10 and the two first racks 9 are fixedly connected with fixed disks 19. The other ends of the fixed disks 19 are fixedly connected with locking blocks 18. The other ends of the locking blocks 18 are both provided with contact sensors 17;

[0034] The rotating disk 5 is fixed by bolts and is detachable. The rotating disk 5 is located on the front side of the sealing cover 2. The sealing cover 2 seals the front opening of the hatch 1. The sealing cover 2 is located on the side close to the aircraft cabin. The two second sliding rails 12 and the two first sliding rails 8 are installed in layers and are offset. For specific reference Figure 2 , the backs of the two second sliding rails 12 and the two first sliding rails 8 are both connected to the back of the inner wall of the hatch 1 through columns to increase stability. The positions of the locking ports 14 and the locking blocks 18 correspond to each other, facilitating the passing of the locking blocks 18. By rotating the gear 15, the two second racks 10 and the two first racks 9 can be moved in opposite directions. The contact sensor 17 can monitor whether the locking block 18 is locked in place. After the locking block 18 is locked in place, the rotating disk 5 is locked through the connection of the limiting mechanism 3 and the connecting frame 4 to prevent non-staff from rotating it.

[0035] An installation base 6 is installed on the front of the sealing cover 2, and an alarm 7 is installed on the front of the installation base 6;

[0036] The alarm 7 gives a warning after the contact sensor 17 detects that the locking block 18 is not in place. Dust prevention treatment is done between the installation base 6 and the alarm 7.

[0037] A through hole 13 is opened at the middle position on the front of the sealing cover 2, and locking ports 14 are opened on the outer surface of the hatch 1;

[0038] The through hole 13 facilitates the passing of the shaft at the connection of the rotating disk 5 and the gear 15. The locking ports 14 are square or circular.

[0039] The limiting mechanism 3 includes an installation shell 301, and a sliding rod 303 is installed at the top of the inner wall of the installation shell 301;

[0040] The other end of the sliding rod 303 is connected to the bottom of the inner wall of the installation shell 301. An opening is provided on the front of the installation shell 301 to allow the connection part of the slider 306 and the movable frame 305 to move.

[0041] The outer surface of the sliding rod 303 is slidably connected with a slider 306, and a spring 302 is installed at the bottom of the slider 306;

[0042] The spring 302 is located on the outer surface of the sliding rod 303, and the other end of the spring 302 is connected to the bottom of the inner wall of the installation shell 301.

[0043] The front of the slider 306 is installed with a movable frame 305, and a lock 304 is installed on the front of the movable frame 305;

[0044] The lock 304 has a bolt that can be inserted into the hole of the connecting frame 4. After inserting it and pulling out the key, the connecting frame 4 is locked inside the movable frame 305, and the movable frame 305 moves up and down.

[0045] The working principle of the locking mechanism of the flight lock for the cabin door provided by the present utility model is as follows:

[0046] First, install two groups of first slide rails 8 and second slide rails 12 inside the cabin door 1, and install the first slide rails 8 and the second slide rails 12 in layers. Then, install two second racks 10 on the adjacent side of the two first slide rails 8 through slide bars 11. Next, install two first racks 9 on the adjacent side of the two second slide rails 12 through slide bars 11, so that the two first racks 9 and the two second racks 10 move in opposite directions when subjected to force at the same time. At the opposite ends of the first rack 9 and the second rack 10, locking blocks 18 are installed through fixed disks 19, and the four locking blocks 18 are aligned with the four locking ports 14 on the outer surface of the cabin door 1, so that the locking blocks 18 can pass through the locking ports 14 and be inserted into the sockets at the position where the cabin door 1 is installed on the aircraft fuselage, thereby locking the closed cabin door 1 and the aircraft fuselage together. At the middle position where the two first racks 9 and the two second racks 10 meet, a rotatable gear 15 is installed through a rotating buckle 16. Then, the sealing cover 2 seals one side of the cabin door 1, and a rotating disk 5 with a connecting frame 4 is installed at the front end of the gear 15 and on one side of the sealing cover 2. A limiting mechanism 3 is also installed on the sealing cover 2. During actual use, by driving the gear 15 to rotate through the rotating disk 5, the two first racks 9 and the two second racks 10 can be driven to move in opposite directions respectively, and the locking blocks 18 can be driven to move. During the movement of the first rack 9 and the second rack 10, the slide bars 11 slide inside the first slide rails 8 and the second slide rails 12 respectively, increasing the stability of the movement of the first rack 9 and the second rack 10. After locking the cabin door 1 through the locking blocks 18, only by connecting the limiting mechanism 3 and the connecting frame 4 can the restriction that non-staff members cannot rotate the rotating disk 5 be achieved.

[0047] Compared with the related art, the locking mechanism of the flight lock for the cabin door provided by the present utility model has the following beneficial effects:

[0048] In order to facilitate the maintenance of the flight lock and locking mechanism of the cabin door in case of failure, first install two groups of first slide rails 8 and second slide rails 12 inside the cabin door 1, and install the first slide rails 8 and the second slide rails 12 in layers. Then, install two second racks 10 on the adjacent side of the two first slide rails 8 through slide bars 11. Then, install two first racks 9 on the adjacent side of the two second slide rails 12 through slide bars 11, so that the two first racks 9 and the two second racks 10 move in opposite directions when receiving force simultaneously. At the opposite ends of the first rack 9 and the second rack 10, locking blocks 18 are installed through fixed disks 19, and the four locking blocks 18 are aligned with the four locking ports 14 on the outer surface of the cabin door 1, so that the locking blocks 18 can pass through the locking ports 14 and be inserted into the sockets at the position where the cabin door 1 is installed on the fuselage, thereby locking the closed cabin door 1 and the aircraft fuselage together. At the middle position where the two first racks 9 and the two second racks 10 meet, a rotatable gear 15 is installed through a rotating buckle 16. Then, seal one side of the cabin door 1 with a sealing cover 2, and install a rotating disk 5 with a connecting frame 4 at the front end of the gear 15 and on one side of the sealing cover 2. A limiting mechanism 3 is also installed on the sealing cover 2. Through this design, the internal structure of the flight lock and locking mechanism of the cabin door 1 is simplified. At the same time, the four locking blocks 18 can lock the four surfaces of the cabin door 1 in contact with the aircraft fuselage to the aircraft fuselage, increasing stability. In case of failure in the later stage, only the sealing cover 2 needs to be removed for quick maintenance, reducing the maintenance difficulty.

[0049] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A locking mechanism for a flight lock of a cabin door, characterized in that, Including: Hatch door; A gear, which is rotatably connected to the middle position on the back of the inner wall of the hatch door through a rotating buckle. One end of the front of the gear is equipped with a rotating disc, and a perforated connecting frame is installed on the outer surface of the rotating disc. A sealing cover is installed on the front of the hatch door, and a limiting mechanism is installed at a position near the bottom of the front of the sealing cover; Two second slide rails, which are respectively fixedly connected to both sides of the inner wall of the hatch door. A first rack is slidably connected to each adjacent side of the two second slide rails through a slide bar. First slide rails are installed at the top and bottom of the inner wall of the hatch door. A second rack is slidably connected to each adjacent side of the two first slide rails through a slide bar. Fixed discs are fixedly connected to the opposite ends of the two second racks and the two first racks. Locking blocks are fixedly connected to the other ends of the fixed discs. Contact sensors are installed at the other ends of the locking blocks.

2. The locking mechanism of the flight lock for the cabin door according to claim 1, characterized in that, An installation base is installed on the front of the sealing cover, and an alarm is installed on the front of the installation base.

3. The locking mechanism of the flight lock for the cabin door according to claim 1, characterized in that, A through hole is opened at the middle position of the front of the sealing cover, and locking holes are opened on the outer surface of the hatch door.

4. The locking mechanism of the flight lock for the hatch door according to claim 1, characterized in that, The limiting mechanism includes an installation shell, and a slide bar is installed at the top of the inner wall of the installation shell.

5. The locking mechanism of the flight lock for the cabin door according to claim 4, characterized in that, A slider is slidably connected to the outer surface of the slide bar, and a spring is installed at the bottom of the slider.

6. The locking mechanism of the flight lock for a hatch door according to claim 5, characterized in that, An activity frame is installed on the front of the slider, and a lock is installed on the front of the activity frame.

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