Aircraft cabin door mounting device and mounting method

Abstract

The invention discloses an aircraft cabin door mounting device which comprises a movable base and a cabin door fixing support, and an angle adjusting mechanism used for adjusting the inclination angle of the cabin door fixing support and a telescopic mechanism used for driving the cabin door fixing support to move up and down are arranged on the movable base. The aircraft cabin door installation method comprises the steps that S1, a cabin door locking mechanism is opened, a cabin door is placed on a cabin door fixing support in a vertical state, and the cabin door fixing support is adjusted to be parallel to a telescopic mechanism; s2, the movable base drives the cabin door to move to the position below the cabin door mounting position, a telescopic mechanism drives a cabin door fixing support to extend upwards, an angle adjusting mechanism adjusts the inclination angle of the cabin door fixing support, a cabin door screw is connected with a second lever, the locking position of a cabin door lock catch is attached to a fixing pin on a machine body, and then a pulley is pushed to be buckled on a first lever; the locking position of the cabin door lock catch is locked with the fixed pin on the machine body. The device is simple in structure, convenient to use and beneficial to reduction of cabin door installation difficulty and improvement of installation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of aviation material equipment and use methods thereof, and in particular to an aircraft cabin door installation device and an installation method thereof. Background Art

[0002] During the maintenance of some large aircraft, it is necessary to install the access doors and ensure that the installation is stable and reliable. Figures 1 to 5 As shown, A represents the end of the door close to the head of the aircraft, B represents the end of the door away from the head of the aircraft, C represents the door locking mechanism cover, D represents the locking mechanism, E represents the fuselage, F represents the door, and G represents the door lock buckle locking position. The door lock buckle locking position G is located on the back of the door F, and the door locking mechanism cover C needs to be opened to see and lock. However, there is no suitable special equipment in the aviation material equipment to assist in the installation, so manual installation has to be adopted. The specific installation method is: first open the door F locking mechanism cover C on the ground, manually transfer the door F to the bottom of the aircraft door installation position and lift the door F to fit with the fuselage E (first dock the pin at the B end with the fuselage E, and then lift the A end to fit with the fuselage E), and finally manually lock (manually buckle the pulley 56 on the first lever 57 from the door F, and this step needs to overcome the force of the door built-in lever and the force between the door screw 47 and the second lever 46), and the installation is completed after checking and confirming that it is correct.

[0003] The weight of the door is about 50 kg, and manual lifting and installation poses a safety hazard. The entire installation process requires the cooperation of 4 to 5 people, which increases the labor cost. The door is installed flat against the fuselage. The airtight belt between the door and the fuselage is a must-have part and can only be installed before the door is installed. This causes the airtight belt to hinder the door assembly. At the same time, when the door is closed, the above-mentioned fuselage accessories and control parts also hinder the installation, making it difficult to lock, seriously affecting the installation efficiency, and vigorously installing in this state can easily damage the door lock. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an aircraft cabin door installation device which has a simple structure, is easy to use, helps to reduce the difficulty of cabin door installation, and improves installation efficiency.

[0005] The invention further provides an aircraft cabin door installation method.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An aircraft door installation device comprises a movable base and a door fixing bracket, wherein the movable base is provided with an angle adjustment mechanism for adjusting the inclination angle of the door fixing bracket and a telescopic mechanism for driving the door fixing bracket to move up and down.

[0008] As a further improvement of the above technical solution: the angle adjustment mechanism is arranged on both sides of the mobile base, the angle adjustment mechanisms on both sides are provided with the telescopic mechanism, and the cabin door fixing bracket is arranged between the telescopic mechanisms on both sides.

[0009] As a further improvement of the above technical solution: the door fixing bracket can rotate relative to the telescopic mechanism and is equipped with a locking piece.

[0010] As a further improvement of the above technical solution: the cabin door fixing bracket is provided with a support rod, a first locking part and a second locking part, the support rod extends into the telescopic mechanism and can rotate relatively, and the locking piece can cooperate with the first locking part or the second locking part to keep the cabin door fixing bracket in a vertical state or parallel to the telescopic mechanism.

[0011] As a further improvement of the above technical solution: the door fixing bracket includes a bracket, a first fixing piece is provided at the bottom of the bracket and second fixing pieces are provided on both sides.

[0012] As a further improvement of the above technical solution: the telescopic mechanism includes a guide groove, a telescopic screw and an adjusting handwheel, the adjusting handwheel is installed on the guide groove through a thrust bearing, and the telescopic screw passes through the adjusting handwheel and extends into the guide groove.

[0013] As a further improvement of the above technical solution: the angle adjustment mechanism includes an adjusting screw arranged on the movable base and an adjusting nut arranged on the adjusting screw, one end of the telescopic mechanism is hinged to the movable base, and the other end is provided with a strip hole for the adjusting screw to pass through, and the adjusting nut is clamped on both sides of the strip hole.

[0014] As a further improvement of the above technical solution: the adjusting screw is hinged to the movable base.

[0015] As a further improvement of the above technical solution: the mobile base is provided with walking wheels, telescopic legs and a standing platform.

[0016] A method for installing an aircraft cabin door comprises the following steps:

[0017] S1. Open the door locking mechanism, place the door on a vertical door fixing bracket, and then adjust the door fixing bracket to be parallel to the telescopic mechanism;

[0018] S2. The mobile base drives the door to move below the door installation position, the telescopic mechanism drives the door fixing bracket to extend upward, and the angle adjustment mechanism adjusts the inclination angle of the door fixing bracket so that the door screw is connected to the second lever, and the locking part of the door lock is in contact with the fixing pin on the fuselage, and then the pulley is pushed to be buckled on the first lever, so that the locking part of the door lock locks the fixing pin on the fuselage.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The aircraft cabin door installation device disclosed in the present invention can fix the cabin door on the cabin door fixing bracket, and can subsequently drive the cabin door to move, lift and adjust the cabin door tilt angle, so as to select the position and angle that is easiest to install, greatly reducing the difficulty of installation, improving installation efficiency, and eliminating the need for multiple people to cooperate throughout the process, which is beneficial to reducing labor costs and reducing the safety risks of manually lifting the cabin door.

[0021] The aircraft cabin door installation method disclosed in the present invention adjusts the cabin door to the open stage for assembly, changes the assembly method, and makes the entire locking process avoid the obstruction of the airtight belt on the aircraft and the assembly resistance caused by the operating mechanism, which is equivalent to an empty lock on the ground. The assembly difficulty is greatly reduced, and the damage to the cabin door locking mechanism due to excessive external force is avoided. It is also beneficial to protect the fuselage, and after the cabin door is fixed to the cabin door fixing bracket, the operation can be completed by a single person, thereby reducing manpower requirements and saving labor costs.

[0022] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the front side of the hatch door involved in the present invention.

[0024] Figure 2 It is a structural schematic diagram of the back side of the hatch door involved in the present invention.

[0025] Figure 3 It is a structural schematic diagram of a cabin door involved in the present invention being installed on a fuselage.

[0026] Figure 4 It is a structural schematic diagram of a locked state of a hatch door according to the present invention.

[0027] Figure 5 The utility model is a structural schematic diagram of the locking mechanism involved in the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the aircraft cabin door installation device of the present invention from a first viewing angle.

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the aircraft cabin door installation device of the present invention from a second viewing angle.

[0030] Figure 8 It is a three-dimensional structural schematic diagram of the hatch fixing bracket and the telescopic mechanism in the present invention from a first viewing angle.

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the hatch fixing bracket and the telescopic mechanism in the present invention from a second viewing angle.

[0032] The symbols in the figure represent:

[0033] A. The end of the door close to the aircraft head; B. The end of the door away from the aircraft head; C. Locking mechanism cover; D. Locking mechanism; E. Fuselage; F. Door; G. Locking point of the door lock;

[0034] 1. Mobile base; 11. Walking wheel; 12. Telescopic legs; 13. Standing platform; 2. Door fixing bracket; 21. Support rod; 22. First locking part; 23. Second locking part; 24. Bracket; 25. First fixing piece; 26. Second fixing piece; 3. Angle adjustment mechanism; 31. Adjusting screw; 46. Second lever; 47. Door screw; 56. Pulley; 57. First lever; 6. Telescopic mechanism; 61. Locking piece; 62. Guide groove; 63. Telescopic screw; 64. Strip hole; 65. Thrust bearing; 66. Adjusting handwheel. DETAILED DESCRIPTION

[0035] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Embodiment 1

[0040] Figures 6 to 9 An embodiment of an aircraft door installation device of the present invention is shown. The aircraft door installation device of this embodiment includes a mobile base 1 and a door fixing bracket 2. The mobile base 1 is provided with an angle adjustment mechanism 3 for adjusting the inclination angle of the door fixing bracket 2 and a telescopic mechanism 6 for driving the door fixing bracket 2 to move up and down.

[0041] The aircraft door installation device of the present embodiment can fix the door on the door fixing bracket 2, and can subsequently drive the door to move, lift and adjust the door inclination angle, so as to select the position and angle that is easiest to install, greatly reducing the difficulty of installation, improving installation efficiency, and eliminating the need for multiple people to cooperate throughout the process (after 2 to 3 people fix the door to the door fixing bracket 2, one person can complete the installation), which is beneficial to reducing labor costs and reducing the safety risks of manually lifting the door.

[0042] Furthermore, in this embodiment, the angle adjustment mechanism 3 is arranged on both sides of the mobile base 1, and the angle adjustment mechanism 3 on both sides is provided with a telescopic mechanism 6, and the door fixing bracket 2 is arranged between the telescopic mechanisms 6 on both sides, and the overall structure has good symmetry and balance, which is conducive to ensuring the stability and safety of the door during the up and down movement and angle adjustment process. Of course, in other embodiments, the telescopic mechanism 6 can also be arranged on both sides of the mobile base 1, and the angle adjustment mechanism 3 can be arranged on the telescopic mechanism 6, and the lifting and swinging functions of the door fixing bracket 2 can also be realized.

[0043] See Figure 3 and Figure 4 In this embodiment, the door fixing bracket 2 can rotate relative to the telescopic mechanism 6 and is equipped with a locking member 61. After the locking member 61 is unlocked, the door fixing bracket 2 is in a vertical state under the action of its own gravity. The door fixing bracket 2 is locked by the locking member 61 to keep it in a vertical state, which facilitates the positioning of the bottom and both sides of the door on the door fixing bracket 2 in a vertical state, and at the same time prevents the door from being deformed by tilting stress. The structure is reasonable and effective.

[0044] Furthermore, in this embodiment, a support rod 21, a first locking portion 22 and a second locking portion 23 are provided on the door fixing bracket 2. The support rod 21 extends into the telescopic mechanism 6 and can rotate relatively. The locking member 61 can cooperate with the first locking portion 22 or the second locking portion 23 to keep the door fixing bracket 2 in a vertical state or parallel to the telescopic mechanism 6. Preferably, a U-shaped groove is provided at the upper end of the telescopic mechanism 6 to place the support rod 21, and is limited by a locking pin, a screw and other components (not shown in the figure), so that the support rod 21 can rotate easily, and the assembly and disassembly maintenance are convenient; the locking member 61 is a latch, and the first locking portion 22 and the second locking portion 23 are positioning holes. When the latch is inserted into the first locking portion 22, the door fixing bracket 2 is kept in a vertical state. After the door is positioned and fixed on the door fixing bracket 2, the latch is pulled out, and the door fixing bracket 2 is rotated to be parallel to the telescopic mechanism 6, and then the latch is inserted into the second locking portion 23, so that the door fixing bracket 2 can rotate synchronously with the telescopic mechanism 6 to adjust the tilt angle and move up and down. The structure is simple, reliable and easy to use. Of course, in other embodiments, the locking member 61 can also be a bolt, a buckle, etc.

[0045] Furthermore, in this embodiment, the door fixing bracket 2 includes a bracket 24, and a first fixing member 25 is provided at the bottom of the bracket 24 and second fixing members 26 are provided at both sides. The door can be effectively fixed to the door fixing bracket 2 by positioning and fixing at the bottom and both sides. Preferably, the first fixing member 25 at the bottom of the bracket 24 is a bolt, which has good reliability, and a buffer pad is provided under the door to avoid damage to the door caused by rigid contact, and the second fixing members 26 on both sides are elastic pins, which can effectively limit the displacement of the door, have good reliability, and are easy to plug and unplug.

[0046] Furthermore, in this embodiment, the telescopic mechanism 6 includes a guide groove 62, a telescopic screw rod 63 and an adjusting hand wheel 66. The adjusting hand wheel 66 is installed on the guide groove 62 through a thrust bearing 65. The telescopic screw rod 63 passes through the adjusting hand wheel 66 and extends into the guide groove 62. When the cabin door needs to be moved up and down, the adjusting hand wheel 66 is turned, and the telescopic screw rod 63 can move up and down. The upper end of the telescopic screw rod 63 drives the cabin door fixing bracket 2 to move up and down through the support rod 21 and the locking member 61; the thrust bearing 65 bears the axial force applied by the cabin door, etc., reduces the resistance of the adjusting hand wheel 66, and facilitates the rotation of the adjusting hand wheel 66 relative to the guide groove 62. At the same time, the guide groove 62 can also provide a guiding effect for the movement of the telescopic screw rod 63 to avoid deviation. The structure is reasonable and effective. Compared with electric, hydraulic and other methods, manual operation is suitable for outdoor environments.

[0047] Furthermore, in this embodiment, the angle adjustment mechanism 3 includes an adjustment screw 31 provided on the mobile base 1 and an adjustment nut (not shown in the figure) provided on the adjustment screw 31. One end of the telescopic mechanism 6 is hinged to the mobile base 1, and the other end is provided with a strip hole 64 (specifically, a guide groove 62 of the telescopic mechanism 6) for the adjustment screw 31 to pass through. The adjustment nut is clamped on both sides of the strip hole 64. When the inclination angle of the door needs to be adjusted, the adjustment nut is rotated to push the telescopic mechanism 6 to rotate around the hinge with the mobile base 1, and the door fixing bracket 2 and the door rotate synchronously with the telescopic mechanism 6. Since the strip hole 64 is provided, the rotation of the telescopic mechanism 6 is not hindered, and the structure is simple and reliable.

[0048] As a preferred embodiment, the adjusting screw 31 is hinged to the movable base 1, so that the angle of the adjusting screw 31 itself can be changed, thereby increasing the rotation angle range of the telescopic mechanism 6, making it more convenient and flexible to use.

[0049] As a preferred embodiment, the mobile base 1 is provided with a running wheel 11, a telescopic leg 12 and a standing platform 13. Preferably, the running wheel 11 is a universal wheel, which is more flexible to move; the telescopic leg 12 can be, for example, a screw structure, which is lifted and lowered by rotating the handle. After the mobile base 1 is in place, the telescopic leg 12 descends to contact the ground to prevent the mobile base 1 from moving accidentally, and the reliability is good; the standing platform 13 is preferably set with two steps, and the material is a patterned steel plate, which has good anti-slip properties, so that the operator can stand when placing the door on the door fixing bracket 2.

[0050] Embodiment 2

[0051] The aircraft cabin door installation method of this embodiment includes the following steps:

[0052] S1, open the door locking mechanism, and place the door on the door fixing bracket 2 in a vertical state, position the door at the bottom and both sides on the door fixing bracket 2 in a vertical state, and prevent the door from being deformed by tilting stress, and then adjust the door fixing bracket 2 to be parallel to the telescopic mechanism 6;

[0053] S2, the mobile base 1 drives the cabin door to move below the cabin door installation position, the telescopic mechanism 6 drives the cabin door fixing bracket 2 to extend upward, and the angle adjustment mechanism 3 adjusts the inclination angle of the cabin door fixing bracket 2, so that the cabin door screw 47 is connected with the second lever 46, and the locking part of the cabin door buckle is in contact with the fixing pin on the fuselage, and then the pulley 56 is pushed to buckle on the first lever 57, so that the locking part of the cabin door buckle locks the fixing pin on the fuselage.

[0054] The aircraft cabin door installation method of the present embodiment adjusts the cabin door to the open stage for assembly, which changes the assembly method so that the entire locking process avoids the obstruction of the airtight belt on the aircraft and the assembly resistance caused by the operating mechanism, which is equivalent to an empty lock on the ground. The difficulty of assembly is greatly reduced, and damage to the cabin door locking mechanism due to excessive external force is avoided. It is also beneficial to protect the fuselage, and after the cabin door is fixed to the cabin door fixing bracket 2, the operation can be completed by a single person, thereby reducing manpower requirements and saving labor costs.

[0055] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. An aircraft door installation device, characterized in that: The invention comprises a movable base (1) and a door fixing bracket (2), wherein the movable base (1) is provided with an angle adjustment mechanism (3) for adjusting the tilt angle of the door fixing bracket (2) and a telescopic mechanism (6) for driving the door fixing bracket (2) to move up and down.

2. The aircraft door installation device according to claim 1, characterized in that: The angle adjustment mechanism (3) is arranged on both sides of the mobile base (1), the telescopic mechanism (6) is arranged on the angle adjustment mechanism (3) on both sides, and the cabin door fixing bracket (2) is arranged between the telescopic mechanisms (6) on both sides.

3. The aircraft door installation device according to claim 2, characterized in that: The door fixing bracket (2) can rotate relative to the telescopic mechanism (6) and is provided with a locking member (61).

4. The aircraft door installation device according to claim 3, characterized in that: The door fixing bracket (2) is provided with a support rod (21), a first locking portion (22) and a second locking portion (23); the support rod (21) extends into the telescopic mechanism (6) and can rotate relatively; the locking member (61) can cooperate with the first locking portion (22) or the second locking portion (23) to keep the door fixing bracket (2) in a vertical state or parallel to the telescopic mechanism (6).

5. The aircraft door installation device according to claim 1, characterized in that: The door fixing bracket (2) comprises a bracket (24), wherein a first fixing member (25) is provided at the bottom of the bracket (24) and second fixing members (26) are provided at both sides.

6. The aircraft door installation device according to any one of claims 1 to 5, characterized in that: The telescopic mechanism (6) comprises a guide groove (62), a telescopic screw rod (63) and an adjusting hand wheel (66); the adjusting hand wheel (66) is mounted on the guide groove (62) via a thrust bearing (65); the telescopic screw rod (63) passes through the adjusting hand wheel (66) and extends into the guide groove (62).

7. The aircraft door installation device according to any one of claims 1 to 5, characterized in that: The angle adjustment mechanism (3) comprises an adjustment screw (31) arranged on the movable base (1) and an adjustment nut arranged on the adjustment screw (31); one end of the telescopic mechanism (6) is hinged to the movable base (1); the other end is provided with a strip hole (64) for the adjustment screw (31) to pass through; the adjustment nut is clamped on both sides of the strip hole (64).

8. The aircraft door installation device according to claim 7, characterized in that: The adjusting screw (31) is hinged to the movable base (1).

9. The aircraft door installation device according to any one of claims 1 to 5, characterized in that: The mobile base (1) is provided with walking wheels (11), telescopic legs (12) and a standing platform (13).

10. A method for installing an aircraft cabin door, characterized in that: The following steps are involved: S1. Open the door locking mechanism, place the door on a door fixing bracket (2) in a vertical position, and then adjust the door fixing bracket (2) to be parallel to the telescopic mechanism (6); S2. The mobile base (1) drives the cabin door to move below the cabin door installation position, the telescopic mechanism (6) drives the cabin door fixing bracket (2) to extend upward, and the angle adjustment mechanism (3) adjusts the tilt angle of the cabin door fixing bracket (2) so that the cabin door screw (47) is connected to the second lever (46), the locking part of the cabin door buckle is in contact with the fixing pin on the fuselage, and then the pulley (56) is pushed to buckle on the first lever (57), so that the locking part of the cabin door buckle is locked to the fixing pin on the fuselage.

Images