Split type adjustable maintenance dock

By employing a modular design and combining multiple components, the problem of existing maintenance docks being unable to simultaneously inspect different locations has been solved, enabling flexible adjustment and efficient cleaning, and improving maintenance convenience and safety.

CN115871954BActive Publication Date: 2026-05-01SPRING AVIATION TECH DEV JIANGSU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SPRING AVIATION TECH DEV JIANGSU CO LTD
Filing Date
2022-12-22
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Most existing maintenance docks are one-piece structures, which makes it impossible for staff to inspect different parts of the aircraft at the same time. Furthermore, when there are linkage requirements, multiple docks need to be used, which is inconvenient.

Method used

A split-type adjustable maintenance dock was designed, which uses a combination of a first column, a second column, a limit rod, and fasteners to allow the maintenance platform to move flexibly; the platform height and position can be adjusted by combining a first hydraulic cylinder, a lead screw, and a motor; it is equipped with a distance sensor, warning lights, and a buzzer for safety warnings; it is equipped with a dust extraction component for efficient cleaning; and it optimizes space utilization by using a ladder and gear system.

Benefits of technology

It enables multiple people to inspect different locations simultaneously, flexibly adjusts the height and position of the inspection platform, avoids friction with the aircraft's outer wall, improves cleaning efficiency and device functionality, and optimizes space utilization.

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Abstract

The application discloses a split type adjustable maintenance machine dock, which comprises a bearing plate, a walking mechanism, a first lifting column and a limiting rod, a screw rod is arranged at the bottom of the bearing plate, a sliding seat is slidably connected to the screw rod, the sliding seat is slidably connected to the bottom of the bearing plate, the bearing plate is fixedly connected with a fixed base, two groups of the walking mechanisms are symmetrically arranged, a first stand and a second stand are arranged above the walking mechanisms respectively, the top of a first hydraulic cylinder is connected with the first lifting column, the inner side of the first lifting column is connected with a mounting plate, and the mounting plate is fixedly connected to one side of a maintenance platform. The split type adjustable maintenance machine dock, the maintenance platform above the first stand and the second stand can accommodate two groups of maintenance personnel respectively, workers can disassemble the limiting rod and fasteners and move the second stand out of the inner side of the blocking frame according to the needs, so that the second stand provided with the maintenance platform can be moved to the required position, thereby facilitating the use requirement of linkage maintenance.
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Description

Technical Field

[0001] This invention relates to the field of maintenance docking technology, specifically a split-type adjustable maintenance dock. Background Technology

[0002] Aircraft are enormous and their height is vastly different from that of humans, making it impossible for people to reach all the parts that need repair or painting. Therefore, some maintenance docks are needed for auxiliary maintenance.

[0003] A search revealed that a typical example of an existing maintenance dock is Publication No. CN216861854U, "A Dock for Aircraft Painting and Repair," which relates to the field of aircraft maintenance dock technology. It includes a support base, a slide rail fixedly connected to the center of the upper surface of the support base, a slide table installed on the inner wall of the slide rail, a column fixedly connected to the upper surface of the slide table, a worktable fixedly connected to the top of the column, a crossbeam fixedly connected to one side of the upper surface of the worktable, a lifting device installed on the lower surface of the crossbeam, a lifting basket installed at the output end of the lifting device, positioning components on both sides of the support base, and a hydraulic cylinder installed in the center of the inner wall of the support base, with a hydraulic push rod installed at the output end of the hydraulic cylinder. This dock for aircraft painting and repair, through the arrangement of the slide rail, slide table, worktable, crossbeam, lifting device, lifting basket, positioning components, ladder, and guardrail, allows for easy adjustment of the worktable position by the cooperation of the slide rail and slide table, thus facilitating the inspection and repair of aircraft parts at different heights and improving the practicality of the device.

[0004] Most of the aforementioned maintenance docks are integrated structures, meaning that one maintenance dock can only meet the needs of one set of maintenance personnel. This prevents staff from simultaneously inspecting different parts of the aircraft. Furthermore, due to the interrelationships between aircraft components, when one staff member is inspecting a fault point, another staff member needs to check the location of the interrelation points. Consequently, multiple maintenance docks need to be used simultaneously, which is inconvenient. To address these issues, existing equipment needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a split-type adjustable maintenance dock to solve the problem mentioned in the background art that most of the maintenance docks are of an integrated structure, meaning that one set of maintenance docks can only meet the needs of one set of maintenance personnel, thus making it impossible for personnel to simultaneously inspect different parts of the aircraft. Furthermore, due to the interrelationship between aircraft components, when one person is inspecting a fault point, another person needs to check the location of its interrelation point, thus requiring the simultaneous use of multiple sets of maintenance docks.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a split-type adjustable maintenance dock, comprising a support plate, a traveling mechanism, a first lifting column, and a limit rod.

[0007] The bottom of the support plate is provided with a lead screw, and the two ends of the lead screw are respectively connected to the output end of the first motor and the fixed block at the bottom of the support plate. Meanwhile, the first motor is installed in the fixed seat. A slide block is slidably connected to the lead screw, and the slide block is slidably connected to the bottom of the support plate. The support plate is fixedly connected to the fixed seat, and a dust extraction component is connected to one side of the bottom of the support plate. Meanwhile, baffles are symmetrically engaged at the bottom of the fixed seat.

[0008] The walking mechanism is symmetrically arranged in two sets, and a first column and a second column are respectively arranged above the walking mechanism. At the same time, a first hydraulic cylinder is symmetrically arranged inside the first column and the second column. The top of the first hydraulic cylinder is connected to the first lifting column, and a second hydraulic cylinder is symmetrically arranged inside the first lifting column. The second hydraulic cylinder is connected to the slide and the fixed seat respectively through the second lifting column.

[0009] The inner side of the first lifting column is connected to the mounting plate, and the mounting plate is fixedly connected to one side of the maintenance platform. The side of the maintenance platform away from the first lifting column is connected to the first lifting column through a tie rod, and a distance sensor is installed at the bottom of the maintenance platform.

[0010] Preferably, the lead screw is driven to rotate by a first motor, and the lead screw is rotatably connected in a fixed base.

[0011] Preferably, the bottom of the second column is symmetrically provided with rollers, and the bottom of the rollers is in contact with the top of the traveling mechanism.

[0012] Preferably, a sleeve and a driven gear are rotatably connected to both the first column and the second column, and a ladder is connected to one outer wall of the driven gear and the sleeve.

[0013] Preferably, the second lifting column and the stop are both engaged and connected to the bottom of the fixed base, and the stop is provided on both sides of the second lifting column.

[0014] Preferably, the distance sensor is electrically connected to the controller, warning light, control panel, and buzzer, and the warning light, control panel, and buzzer are all installed on the side of the ladder.

[0015] Preferably, the limiting rod passes through the stop and the second column and is threadedly connected to the fastener, and two sets of limiting rods are symmetrically arranged.

[0016] Preferably, the driven gear meshes with the driving gear, and the driving gear is mounted on the output end of the second motor, while the second motor is mounted on the outer wall of the first column and the second column.

[0017] Preferably, the dust extraction assembly includes a dust extraction pipe and a mounting bracket, and the dust extraction pipe is fixedly connected to the bottom of the support plate through the mounting bracket. At the same time, a dust extraction port is opened at the bottom of the dust extraction pipe. The dust extraction pipe is connected to an air pump through a conveying pipe, and the air pump is installed on an equipment base on the outer wall of the baffle.

[0018] Compared with the prior art, the beneficial effects of the present invention are: this split-type adjustable maintenance dock,

[0019] (1) The present invention can effectively solve the problem that most of the above-mentioned maintenance docks are integrated structures, that is, a set of maintenance docks can only meet the use of a set of maintenance personnel, thus making it impossible for the staff to inspect different parts of the aircraft at the same time. As there is a corresponding linkage between the aircraft parts, when the staff inspects a fault point, another staff needs to check the location of the linkage point, thus requiring the use of multiple sets of maintenance docks at the same time, which is not convenient. The maintenance platform above the first and second columns can accommodate two sets of maintenance personnel respectively. At the same time, the staff can remove the limit rod and fasteners as needed to move the second column out from the inside of the frame, so that the second column with the maintenance platform can be flexibly moved to the required location, thus facilitating the use of linkage maintenance.

[0020] (2) The present invention can effectively solve the problem that existing maintenance docks are inconvenient for workers to flexibly adjust the maintenance position according to different maintenance positions by using the first hydraulic cylinder, lead screw and first electric motor in combination. Workers can control the first hydraulic cylinder to push the first lifting column to move up and down, so that the maintenance platform, i.e. the worker, can adjust the maintenance height up and down. At the same time, workers can control the first electric motor to drive the lead screw to adjust the position of the slide and the equipment connected below it, i.e. the maintenance platform, so as to meet different maintenance needs.

[0021] (3) The present invention can effectively solve the problem that maintenance personnel are prone to contact or accidentally bump into the outer wall of the aircraft when adjusting the position, which can easily cause friction to the appearance of the aircraft. When the distance sensor detects that the distance between the maintenance platform and the aircraft reaches the set value during the movement, that is, there is a risk of friction between the two, the distance sensor will transmit this information to the controller. The controller will control the warning light and the buzzer to give the staff an audible and visual warning, which can avoid the above problems to a certain extent, thereby enriching the functionality of the device.

[0022] (4) The present invention can effectively solve the problem that there is a certain height difference between the maintenance platform and the ground by using the ladder, the second motor, the drive gear and the driven gear in combination. The ladder takes up a lot of space and is not convenient for workers to carry out maintenance work. The second motor can drive the drive gear to rotate, and the rotating drive gear can drive the driven gear connected to the ladder to rotate. Thus, the ladder can be rotated to one side after use, which can improve the rationality of the device structure to a certain extent.

[0023] (5) The present invention can effectively solve the problem of cleaning contaminants on the surface of the aircraft during maintenance by using an air pump, a dust extraction pipe and a mounting bracket. However, the cleaning efficiency is low and the use is not convenient. The air pump can extract dust from the aircraft below through the dust extraction pipe. At the same time, the staff can adjust the distance between the dust extraction pipe and the aircraft by controlling the extension length of the second hydraulic cylinder, so as to meet different dust extraction needs and thus expand the scope of use of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0026] Figure 3 This is a side view of the structural diagram showing the positional relationship between the walking mechanism, the stop frame, and the second column of the present invention.

[0027] Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point B;

[0029] Figure 6 This is a top cross-sectional view of the connection relationship between the first lifting column, the second lifting column, the sleeve, and the ladder of the present invention.

[0030] Figure 7 This is a schematic diagram of the overall structure of the connection relationship between the first column, the first lifting column, the limiting rod, and the second column of the present invention;

[0031] Figure 8 This is a schematic diagram illustrating the working principle of the present invention.

[0032] In the diagram: 1. Bearing plate; 2. Lead screw; 3. First motor; 4. Fixed seat; 5. Stop; 6. Slide; 7. Traveling mechanism; 8. First column; 9. Second column; 10. First hydraulic cylinder; 11. First lifting column; 12. Second hydraulic cylinder; 13. Second lifting column; 14. Mounting plate; 15. Maintenance platform; 16. Tie rod; 17. Distance sensor; 18. Sleeve; 19. Ladder; 20. Second motor; 21. Drive gear; 22. Warning light; 23. Buzzer; 24. Control panel; 25. Limit rod; 26. Fastener; 27. Roller; 28. Driven gear; 29. ​​Equipment base; 30. Air pump; 31. Dust extraction pipe; 32. Mounting bracket. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-8 This invention provides a technical solution: a split-type adjustable maintenance dock, embodiment one.

[0035] like Figure 1 and Figure 2 As shown, a lead screw 2 is provided at the bottom of the bearing plate 1, and the two ends of the lead screw 2 are respectively connected to the output end of the first motor 3 and the fixing block at the bottom of the bearing plate 1. Meanwhile, the first motor 3 is installed in the fixing seat 4. A slide block 6 is slidably connected to the lead screw 2, and the slide block 6 is slidably connected to the bottom of the bearing plate 1. The bearing plate 1 is fixedly connected to the fixing seat 4, and a dust extraction component is connected to one side of the bottom of the bearing plate 1. Meanwhile, baffles 5 are symmetrically engaged at the bottom of the fixing seat 4.

[0036] In a further embodiment, the lead screw 2 is driven to rotate by the first motor 3, and the lead screw 2 is rotatably connected in the fixed base 4.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the walking mechanism 7 is symmetrically arranged in two sets, and a first column 8 and a second column 9 are respectively arranged above the walking mechanism 7. At the same time, a first hydraulic cylinder 10 is symmetrically arranged inside the first column 8 and the second column 9. The top of the first hydraulic cylinder 10 is connected to the first lifting column 11, and a second hydraulic cylinder 12 is symmetrically arranged inside the first lifting column 11. The second hydraulic cylinder 12 is connected to the slide 6 and the fixed seat 4 respectively through the second lifting column 13.

[0038] Specifically, the walking mechanism 7 facilitates the movement of the device to a suitable position by the staff. Since the walking mechanism 7 is an existing mechanism, it will not be described in detail here.

[0039] In a further embodiment, rollers 27 are symmetrically arranged at the bottom of the second column 9, and the bottom of the rollers 27 contacts the top of the walking mechanism 7.

[0040] Specifically, the rollers 27 facilitate the improvement of the flexibility of the second column 9, thereby meeting the needs of free movement.

[0041] In a further embodiment, a sleeve 18 and a driven gear 28 are rotatably connected to both the first column 8 and the second column 9, and a ladder 19 is connected to one side of the outer wall of the driven gear 28 and the sleeve 18.

[0042] Specifically, the sleeve 18 serves to connect and tighten the connection between the ladder 19 and the first column 8 and the second column 9, thereby improving the stability of the ladder 19 during use.

[0043] In a further embodiment, the driven gear 28 is meshed with the driving gear 21, and the driving gear 21 is mounted on the output end of the second motor 20, while the second motor 20 is mounted on the outer wall of the first column 8 and the second column 9.

[0044] In a further embodiment, the second lifting column 13 and the baffle 5 are both engaged and connected to the bottom of the fixed base 4, and the baffle 5 is disposed on both sides of the second lifting column 13.

[0045] In a further embodiment, the limiting rod 25 passes through the stop 5 and the second column 9 and is threadedly connected to the fastener 26, and two sets of limiting rods 25 are symmetrically arranged.

[0046] Specifically, the limiting rod 25 is threaded inside the baffle 5 and the second column 9, and the limiting rod 25 and the fastener 26 facilitate the prevention of the second column 9 from moving inside the baffle 5, thereby improving the safety of the device structure.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, the inner side of the first lifting column 11 is connected to the mounting plate 14, and the mounting plate 14 is fixedly connected to one side of the maintenance platform 15. The side of the maintenance platform 15 away from the first lifting column 11 is connected to the first lifting column 11 through the tie rod 16, and a distance sensor 17 is installed at the bottom of the maintenance platform 15.

[0048] In a further embodiment, the distance sensor 17 is electrically connected to the controller, warning light 22, control panel 24 and buzzer 23, and the warning light 22, control panel 24 and buzzer 23 are all installed on the side of the ladder 19.

[0049] Preferably, the preferred model of the controller is RPCF-6, and the preferred model of the distance sensor 17 is LTR-507ALS-MD. At the same time, the use of the distance sensor 17 for distance measurement is an existing technology, and its detection principle, working process and installation structure will not be described in detail here.

[0050] Specifically, in actual work, workers can climb onto the maintenance platform 15 via ladder 19. Then, workers below can operate control panel 24 to control the second motor 20 to drive the drive gear 21 to rotate. The rotating drive gear 21 will push the driven gear 28 to rotate, thereby rotating ladder 19 to the other side. Then, workers can control the first hydraulic cylinder 10 to push the first lifting column 11 to extend from the first column 8, thereby adjusting the working height of maintenance platform 15 to a suitable height. At the same time, workers can control the first motor 3 to drive the lead screw 2 to rotate, thereby moving the maintenance position of workers on maintenance platform 15 at the top of the first column 8. When linkage maintenance is required, workers can disassemble limit rod 25 and fastener 26 to separate the second column 9 from the stop frame 5, thereby using rollers 27 to move the second column 9 and the maintenance platform 15 above it to the required position for linkage maintenance work.

[0051] Example 2

[0052] This embodiment is a further description of the above embodiments. It should be understood that this embodiment includes all the aforementioned technical features and is further described in detail.

[0053] like Figure 1 , Figure 2 and Figure 3 As shown, in a further embodiment, the dust extraction assembly includes a dust extraction pipe 31 and a mounting bracket 32. The dust extraction pipe 31 is fixedly connected to the bottom of the support plate 1 through the mounting bracket 32. At the same time, a dust extraction port is opened at the bottom of the dust extraction pipe 31. The dust extraction pipe 31 is connected to the air pump 30 through a conveying pipe. The air pump 30 is installed on the equipment base 29 on the outer wall of the baffle 5.

[0054] Specifically, under the suction action of the air pump 30, the dust extraction port at the bottom of the dust extraction pipe 31 will continuously extract dust from the aircraft, thereby facilitating the staff to perform touch-up painting or other maintenance work on the aircraft's exterior surface, and thus enriching the functionality of the device.

[0055] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A split-type adjustable maintenance dock, comprising a support plate (1), a traveling mechanism (7), a first lifting column (11), and a limiting rod (25), characterized in that: The bottom of the bearing plate (1) is provided with a lead screw (2), and the two ends of the lead screw (2) are respectively connected to the output end of the first motor (3) and the fixed block at the bottom of the bearing plate (1). Meanwhile, the first motor (3) is installed in the fixed seat (4). A slide block (6) is slidably connected on the lead screw (2), and the slide block (6) is slidably connected to the bottom of the bearing plate (1). The bearing plate (1) is fixedly connected to the fixed seat (4), and a dust extraction component is connected to one side of the bottom of the bearing plate (1). Meanwhile, a baffle (5) is symmetrically engaged at the bottom of the fixed seat (4). The walking mechanism (7) is symmetrically arranged in two sets, and a first column (8) and a second column (9) are respectively arranged above the walking mechanism (7). At the same time, a first hydraulic cylinder (10) is symmetrically arranged inside the first column (8) and the second column (9). The top of the first hydraulic cylinder (10) is connected to the first lifting column (11), and a second hydraulic cylinder (12) is symmetrically arranged inside the first lifting column (11). At the same time, the second hydraulic cylinder (12) is connected to the slide (6) and the fixed seat (4) respectively through the second lifting column (13). The inner side of the first lifting column (11) is connected to the mounting plate (14), and the mounting plate (14) is fixedly connected to one side of the maintenance platform (15). The side of the maintenance platform (15) away from the first lifting column (11) is connected to the first lifting column (11) through the pull rod (16), and a distance sensor (17) is installed at the bottom of the maintenance platform (15). The bottom of the second column (9) is symmetrically provided with rollers (27), and the bottom of the rollers (27) is in contact with the top of the walking mechanism (7); A sleeve (18) and a driven gear (28) are rotatably connected to both the first column (8) and the second column (9), and a ladder (19) is connected to one side of the outer wall of the driven gear (28) and the sleeve (18). The second lifting column (13) and the stop (5) are both engaged and connected to the bottom of the fixed base (4), and the stop (5) is located on both sides of the second lifting column (13); The limiting rod (25) passes through the stop (5) and the second column (9) and is threadedly connected to the fastener (26), and two sets of limiting rods (25) are symmetrically arranged; The driven gear (28) meshes with the driving gear (21), and the driving gear (21) is mounted on the output end of the second motor (20). Meanwhile, the second motor (20) is mounted on the outer wall of the first column (8) and the second column (9).

2. The split-type adjustable maintenance dock according to claim 1, characterized in that: The lead screw (2) is driven to rotate by the first motor (3), and the lead screw (2) is rotatably connected in the fixed seat (4).

3. The split-type adjustable maintenance dock according to claim 1, characterized in that: The distance sensor (17) is electrically connected to the controller, warning light (22), control panel (24) and buzzer (23), and the warning light (22), control panel (24) and buzzer (23) are all installed on the side of the ladder (19).

4. The split-type adjustable maintenance dock according to claim 1, characterized in that: The dust extraction assembly includes a dust extraction pipe (31) and a mounting bracket (32). The dust extraction pipe (31) is fixedly connected to the bottom of the support plate (1) through the mounting bracket (32). At the same time, a dust extraction port is opened at the bottom of the dust extraction pipe (31). The dust extraction pipe (31) is connected to an air pump (30) through a conveying pipe. The air pump (30) is installed on the equipment base (29) on the outer wall of the baffle (5).

Citation Information

Patent Citations

  • Supporting device for civil aviation maintenance

    CN112707345A

  • Aircraft dock for aircraft paint spraying and maintenance

    CN216861854U