A stern ramp for a mobile elevating platform

Abstract

The utility model relates to the technical field of tail dock, concretely is a kind of tail dock of mobile lifting type platform, including chassis and the vertical frame of fixedly arranged on chassis, the horizontal frame is slidably arranged in the vertical frame side, two cantilever frames are slidably arranged on the horizontal frame, the inside of cantilever frame is slidably arranged with several widened platforms, when the widened platform is extracted cantilever frame, widened platform can provide standing platform for maintenance personnel;When the widened platform is pushed into cantilever frame, the fuselage below widened platform can be maintained and cleaned;Several detachable supporting parts are arranged on the widened platform, and the supporting part is used to provide force point for the foot of maintenance personnel.When repeated stress leads to the damage of inner rod or outer rod, the inner rod is pressed into the outer rod, the damaged supporting part is taken out from the sleeve, and the new supporting part is installed in the sleeve, so that the operation is simple, and the time consumption is short.

Description

Technical Field

[0001] This utility model relates to the field of tail dock technology, and in particular to a tail dock for a mobile lifting platform. Background Technology

[0002] In the field of aircraft maintenance and repair, a tail dock is an important ground support device specifically used for the inspection and cleaning of high parts of an aircraft, such as the tail and vertical stabilizer. Traditional tail docks are mostly fixed or simple mobile structures, and the height and coverage of their working platform are usually relatively fixed, or have limited adjustment capabilities.

[0003] When dealing with different aircraft models, especially those with varying fuselage widths and heights of parts requiring maintenance, traditional tail docks often struggle to flexibly and accurately adapt to maintenance needs. Operators may be unable to work from the optimal position, sometimes requiring repeated adjustments to equipment placement or the use of other elevation tools. This not only reduces maintenance efficiency but may also pose safety risks due to inconvenient positioning or equipment instability. Specifically, existing technologies suffer from the following core problems: First, the equipment lacks sufficient flexibility in height and width adjustments, making it difficult to quickly adapt to different work locations on different aircraft models; second, the standing area of ​​the work platform is limited and fixed, unable to be flexibly expanded according to the needs of maintenance tasks, especially when close-range work on the aircraft fuselage is required, lacking stable and adjustable foot support. Utility Model Content

[0004] The main objective of this invention is to provide a tail dock for a mobile lifting platform to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a tail dock for a mobile lifting platform is provided, comprising a base frame and a vertical frame fixed on the base frame. A horizontal frame is slidably provided on one side of the vertical frame, and two cantilever frames are slidably provided on the horizontal frame. A plurality of widened platforms are slidably provided inside the cantilever frames. When the widened platforms are pulled out of the cantilever frames, they can provide a standing platform for maintenance personnel. When the widened platforms are pushed into the cantilever frames, the machine body below the widened platforms can be cleaned and maintained. The widened platforms are provided with a plurality of detachable support parts, which provide a foothold for maintenance personnel.

[0006] Furthermore, the vertical frame is equipped with a first power system, which is used to drive the horizontal frame to slide up and down along the vertical frame.

[0007] Furthermore, a second power system is provided on the crossbeam, which is used to drive the cantilever frame to slide back and forth along the crossbeam, and the two cantilever frames slide synchronously towards or in opposite directions.

[0008] Furthermore, the widened platform includes two parallel load-bearing rods, the outer ends of which are fixedly connected by baffles, the middle part is fixedly connected by several connecting rods, and the tail is fixedly provided with a guide rod.

[0009] Furthermore, each of the load-bearing rods is fixedly provided with a sleeve, one end of which extends into the inside of the load-bearing rod and the other end extends to the outside of the load-bearing rod, and the supporting part is inserted into the opposite sleeve.

[0010] Furthermore, the supporting part includes an outer rod and an inner rod slidably disposed at the end of the outer rod, and a spring is provided between the inner rod and the outer rod.

[0011] Furthermore, the outer rod end has an open cavity for accommodating the inner rod and spring, and the interior has a first closed cavity.

[0012] Furthermore, the inner rod is provided with a second closed cavity.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Improved adaptability of the equipment to different aircraft models and work locations: This application achieves flexible and precise adjustment of the work platform in both vertical direction and horizontal width by driving the horizontal frame to rise and fall through a first power system and driving the two cantilever frames to slide synchronously in opposite directions through a second power system. This allows maintenance personnel to quickly adjust the standing platform to a specific work position at the tail of the aircraft, effectively overcoming the problems of inconvenient adjustment and poor adaptability of traditional equipment.

[0015] 2. Optimized standing space and operational flexibility of the work platform: This application achieves on-demand expansion of the standing area through a widened platform that can be pulled out from the cantilever frame and a support unit that can be detachably installed on the widened platform. When a larger platform is needed, the widened platform can be pulled out; when close to the machine body is required for operation, the widened platform can be retracted, providing a stable foothold for maintenance personnel. This design solves the problem of limited working area on fixed platforms, improving the convenience and safety of maintenance operations.

[0016] 3. Quick replacement of support parts: When the inner or outer rod is damaged due to repeated stress, press the inner rod into the outer rod, remove the damaged support part from the sleeve, and then install the new support part into the sleeve. The operation is simple and takes little time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 Schematic diagram of the widened platform structure of this utility model Figure 1 ;

[0019] Figure 3 Schematic diagram of the widened platform structure of this utility model Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the support structure of this utility model.

[0021] Figure label:

[0022] 1. Base frame; 2. Vertical frame; 3. Horizontal frame; 4. Cantilever frame; 5. Widened platform; 51. Load-bearing rod; 52. Baffle; 53. Guide rod; 54. Connecting rod; 55. Sleeve; 56. Support part; 561. Outer rod; 562. Inner rod; 563. Spring; 564. Open cavity; 565. First closed cavity; 566. Second closed cavity; 6. First motor; 7. First lead screw; 8. Caster wheel. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] This embodiment provides a tail dock for a mobile lifting platform, such as... Figure 1 As shown, the tail dock mainly includes a base frame 1, a vertical frame 2, a horizontal frame 3, a cantilever frame 4, and a widened platform 5. The base frame 1 serves as the supporting foundation for the entire equipment, and its bottom is equipped with multiple casters 8, allowing the tail dock to be easily moved to the working position. The vertical frame 2 is fixedly installed on the base frame 1, providing it with the main vertical support.

[0025] The horizontal frame 3 is mounted on one side of the vertical frame 2 via a sliding connection. To enable the horizontal frame 3 to rise and fall, a first power system is installed on the vertical frame 2. This first power system mainly consists of a first motor 6 and a first lead screw 7. The first motor 6 is fixedly mounted on the top of the vertical frame 2. Both ends of the first lead screw 7 are rotatably connected to the vertical frame 2 via bearings, and the upper end of the first lead screw 7 is fixedly connected to the output shaft of the first motor 6. The first lead screw 7 passes through the horizontal frame 3 and is threadedly engaged with it. When the first motor 6 starts, it drives the first lead screw 7 to rotate, thereby causing the horizontal frame 3, which is threadedly connected to the first lead screw 7, to reciprocate up and down along the vertical frame 2. To ensure the smoothness of the horizontal frame 3's rising and falling process, a first power system can be installed on each side of the top of the vertical frame 2 to synchronously drive the horizontal frame 3.

[0026] Two cantilever arms 4 are slidably mounted on the crossarm 3. A second power system is installed on the crossarm 3 to drive the cantilever arms 4 laterally. This second power system mainly includes a second motor (not shown in the figure) and a second lead screw (not shown in the figure). The second motor is fixedly mounted on the crossarm 3, and the two ends of the second lead screw are rotatably connected to the crossarm 3 via bearings, with one end fixedly connected to the output shaft of the second motor. The second lead screw consists of two threaded sections with opposite directions of rotation, each threadedly connected to one of the two cantilever arms 4. When the second motor drives the second lead screw to rotate, the two cantilever arms 4 can synchronously move closer or further apart, thus adapting to aircraft fuselages of different widths.

[0027] Several widened platforms 5 are slidably installed on the inner side of each cantilever 4. For example... Figure 2 As shown, the widened platform 5 mainly comprises two parallel load-bearing rods 51. The outer ends of the two load-bearing rods 51 are fixedly connected by a baffle 52, and the middle is fixedly connected by several connecting rods 54, thus forming a stable frame structure. A guide rod 53 is fixedly connected to the tail of the two load-bearing rods 51. A guide groove is provided on the outer side of the guide rod 53, and a slider that cooperates with the guide groove is provided on the inner side of the cantilever 4. The slider is engaged in the guide groove, allowing the widened platform 5 to be pulled and slid relative to the cantilever 4. At the same time, this cooperation structure can also effectively prevent the widened platform 5 from accidentally falling off the cantilever 4. When the widened platform 5 is pulled out of the cantilever 4, it provides an additional standing platform for maintenance personnel; when the widened platform 5 is pushed into the cantilever 4, it facilitates maintenance or cleaning of the aircraft fuselage below the widened platform 5.

[0028] Several detachable support sections 56 are provided on the widened platform 5 to provide footholds for maintenance personnel. Specifically, sleeves 55 are fixedly installed on the inner sides of the two load-bearing rods 51, such as... Figure 3 As shown. One end of the sleeve 55 extends into the interior of the load-bearing rod 51, while the other end extends outward toward the inside of the load-bearing rod 51. The support portion 56 can be inserted into a pair of opposing sleeves 55.

[0029] like Figure 4As shown, the support portion 56 specifically includes an outer rod 561, an inner rod 562, and a spring 563. The inner rod 562 is slidably disposed inside one end of the outer rod 561. The spring 563 is housed inside the outer rod 561, with its two ends fixedly connected to the bottom of the inner rod 562 and the interior of the outer rod 561, respectively. In its natural extended state, the spring force of the spring 563 pushes the inner rod 562 outward, but the end of the inner rod 562 remains inside the outer rod 561 to prevent them from completely separating. When the support portion 56 needs to be installed, the inner rod 562 is first pushed inward into the outer rod 561, compressing the spring 563 and shortening the total length of the support portion 56. Then, the end of the outer rod 561 is aligned and inserted into the corresponding sleeve 55. After the inner rod 562 is released, the spring 563 rebounds, pushing the inner rod 562 into the corresponding sleeve 55, thereby reliably installing the support portion 56 between the two sleeves 55. During disassembly, simply press the inner rod 562 into the outer rod 561 again, so that its end exits the sleeve 55, and the entire support part 56 can be removed.

[0030] To reduce weight, the end of the outer rod 561 has an open cavity 564 for accommodating the inner rod 562 and the spring 563, and the inner rod 561 also has a first closed cavity 565. Similarly, the inner rod 562 also has a second closed cavity 566 inside, in order to achieve weight reduction.

[0031] As a preferred embodiment, the cross-sections of the sleeve 55, outer rod 561, and inner rod 562 can all be designed as triangles. During installation, the flat surfaces of the triangles face upwards, and the pointed corners face downwards. This design increases the contact area with the maintenance personnel's feet, improving comfort and stability when stepping on the equipment.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A tail dock for a mobile lifting platform, comprising a base frame (1) and a vertical frame (2) fixedly mounted on the base frame (1), characterized in that, A horizontal frame (3) is slidably provided on one side of the vertical frame (2), and two cantilever frames (4) are slidably provided on the horizontal frame (3). Several widened platforms (5) are slidably provided on the inner side of the cantilever frames (4). When the widened platform (5) is pulled out of the cantilever frame (4), the widened platform (5) can provide a standing platform for maintenance personnel. When the widened platform (5) is pushed into the cantilever frame (4), the machine body below the widened platform (5) can be cleaned and maintained. Several detachable support parts (56) are provided on the widened platform (5), and the support parts (56) are used to provide a foothold for maintenance personnel.

2. The tail dock of the mobile lifting platform according to claim 1, characterized in that, The vertical frame (2) is equipped with a first power system, which is used to drive the horizontal frame (3) to slide up and down along the vertical frame (2).

3. The tail dock of the mobile lifting platform according to claim 1, characterized in that, The cross frame (3) is provided with a second power system, which is used to drive the cantilever frame (4) to slide back and forth along the cross frame (3), and the two cantilever frames (4) slide synchronously towards or in opposite directions.

4. The tail dock of the mobile lifting platform according to claim 1, characterized in that, The widened platform (5) includes two parallel load-bearing rods (51), the outer ends of the two load-bearing rods (51) are fixedly connected by baffles (52), the middle part is fixedly connected by several connecting rods (54), and the tail is fixedly provided with a guide rod (53).

5. The tail dock of the mobile lifting platform according to claim 4, characterized in that, Each of the load-bearing rods (51) is fixedly provided with a sleeve (55) on its inner side. One end of the sleeve (55) extends into the inside of the load-bearing rod (51), and the other end extends to the outside of the load-bearing rod (51). The supporting part (56) is inserted into the opposite sleeve (55).

6. The tail dock of the mobile lifting platform according to claim 1, characterized in that, The supporting part (56) includes an outer rod (561) and an inner rod (562) slidably disposed at the end of the outer rod (561), and a spring (563) is provided between the inner rod (562) and the outer rod (561).

7. The tail dock of the mobile lifting platform according to claim 6, characterized in that, The outer rod (561) has an open cavity (564) at its end for accommodating the inner rod (562) and the spring (563), and a first closed cavity (565) inside.

8. The tail dock of the mobile lifting platform according to claim 6, characterized in that, The inner rod (562) is provided with a second closed cavity (566).

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