Ladder assembly bottom plate transverse moving combined structure

Abstract

The utility model relates to a ladder assembly bottom plate transverse moving combined structure, which belongs to the technical field of aircraft maintenance and particularly comprises two guide grooves arranged on the surface of a lower platform frame along the length direction, two connecting plates arranged at the bottom of an upper platform frame along the length direction, the two connecting plates are respectively inserted into the two guide grooves, and the two connecting plates are connected with the lower platform frame through a connecting rod. The upper platform frame and the lower platform frame are each of an interlayer structure, a plurality of partition cavities are formed between the interlayers, and telescopic plate structures are installed in the partition cavities respectively. And the maintenance efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model relates to a ladder frame base plate transverse sliding assembly structure, belonging to the field of aircraft maintenance technology. Background Technology

[0002] Currently, most existing aircraft maintenance racks only use simple lifting structures. However, due to the length and curvature of the aircraft fuselage, the racks need to be moved frequently. Furthermore, because the top or bottom areas of some aircraft fuselages have large curvatures, frequent movement of the racks can easily scratch the fuselage and seriously affect maintenance efficiency. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides a ladder frame base plate transverse moving combination structure that is simple in structure, easy to use, and can effectively improve maintenance efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a ladder frame base plate transverse sliding combination structure, including an upper platform frame and a lower platform frame. The surface of the lower platform frame is provided with two guide grooves along the length direction, and the bottom of the upper platform frame is provided with two connecting plates along the length direction. The two connecting plates are respectively inserted into the two guide grooves. A rotating shaft is installed on the connecting plate, and support rollers are respectively installed at both ends of the rotating shaft. The support rollers are located in the guide grooves. Both the upper platform frame and the lower platform frame are sandwich structures, and multiple partition cavities are provided between the sandwich layers. Telescopic plate structures are installed in the partition cavities respectively.

[0005] Preferably, the telescopic plate structure includes a rectangular frame and a support plate mounted on the rectangular frame. First guide rollers are mounted on both sides of the rectangular frame via rotating shafts. Grooved guide rails are mounted on both sides of the partition cavity. The first guide rollers are located inside the grooved guide rails and are arranged vertically to contact the top and bottom surfaces of the grooved guide rails. Second guide rollers are mounted on the bottom outer side of the partition cavity. The second guide rollers are located at the bottom of the rectangular frame. A limit baffle is also installed at the bottom of the partition cavity to block the tail of the rectangular frame.

[0006] Preferably, the support plate is provided with multiple limiting holes, a guide seat is installed on the top of the outer side of the partition cavity, a limiting pin is installed in the guide seat, and the limiting pin is used to be inserted into the limiting hole.

[0007] Preferably, the support plate is further provided with a reinforcing rib plate, the reinforcing rib plate is provided with through holes corresponding to multiple limiting holes, and the limiting pin is inserted into the limiting hole through the through hole.

[0008] Preferably, the rectangular frame is further fitted with cushioning rubber.

[0009] Preferably, a plurality of support mechanisms are also installed on one side of the upper platform frame. The support mechanism includes a fixed plate, a lead screw nut installed on the fixed plate, and a lead screw installed in the lead screw nut. An operating handwheel is installed on the top of the lead screw, and a support base is installed on the bottom. An anti-slip pad is installed on the bottom of the support base.

[0010] Compared with the prior art, the present invention has the following technical effects: The present invention has a simple structure and is easy to use. It adopts a double-layer platform design, and the two layers can move laterally relative to each other, which facilitates the maintenance of the aircraft fuselage along its length. At the same time, the two layers also adopt a sandwich structure, and multiple telescopic plates are installed in the sandwich structure. The telescopic plates can extend and retract freely, and can extend to a suitable length according to the curvature of the fuselage, thereby greatly improving maintenance efficiency and eliminating the need to frequently move the ladder, making it more convenient to use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the arrangement structure of the upper platform frame and the lower platform frame in this utility model.

[0013] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0014] Figure 4 This is a schematic diagram of the arrangement structure of the telescopic plate in this utility model.

[0015] Figure 5 This is a schematic diagram of the telescopic plate in this utility model.

[0016] Figure 6 This is a schematic diagram of the limiting baffle in this utility model. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] like Figure 1 , Figure 2As shown, the ladder frame base plate transverse sliding assembly structure includes an upper platform frame 1 and a lower platform frame 2. The surface of the lower platform frame 2 is provided with two guide grooves 3 along the length direction. The bottom of the upper platform frame 1 is provided with two connecting plates 4 along the length. The two connecting plates 4 are respectively inserted into the two guide grooves 3. A rotating shaft 5 is installed on the connecting plate 4. Support rollers 6 are respectively installed at both ends of the rotating shaft 5. The support rollers 6 are located in the guide grooves 3. Both the upper platform frame 1 and the lower platform frame 2 are sandwich structures, and multiple partition cavities 8 are provided between the sandwich layers. Telescopic plate structures 7 are respectively installed in the partition cavities 8.

[0019] This utility model adopts a sandwich structure, which is divided into an upper platform frame 1 and a lower platform frame 2. The upper platform frame 1 can move laterally on the lower platform frame 2. At the same time, the upper platform frame 1 and the lower platform frame 2 are respectively equipped with sandwich structures. The telescopic plate structure 7 is installed in the sandwich structure. The telescopic plate structure 7 can extend freely, thereby realizing the horizontal and vertical extension of the ladder frame, which facilitates the maintenance of the machine body.

[0020] The upper platform frame 1 is equipped with multiple support mechanisms on one side. These mechanisms include a fixed plate 20, a lead screw nut 21 mounted on the fixed plate, and a lead screw 22 installed within the lead screw nut. An operating handwheel 23 is mounted on the top of the lead screw 22, and a support base 24 is mounted on the bottom. An anti-slip rubber pad 25 is installed on the bottom of the support base 24. When the upper platform frame 1 stops moving, the support mechanism can use the lead screw to control the support base to support itself on the lower platform frame 2, thus achieving fixation.

[0021] like Figures 3 to 5 As shown, the telescopic plate structure 7 includes a rectangular frame 9 and a support plate 10 mounted on the rectangular frame 9. First guide rollers 11 are mounted on both sides of the rectangular frame 9 via rotating shafts. Grooved guide rails 12 are mounted on both sides of the partition cavity 8. The first guide rollers 11 are located within the grooved guide rails 12 and are positioned vertically to contact the top and bottom surfaces of the grooved guide rails 12. Second guide rollers 13 are mounted on the bottom outer side of the partition cavity 8, located at the bottom of the rectangular frame 9. A limit baffle 14 is also installed at the bottom of the partition cavity 8 to block the tail of the rectangular frame 9. The telescopic plate structure adopts a sliding structure, utilizing the movement of the first guide rollers 11 within the grooved guide rails 12 to achieve the telescopic extension and retraction of the rectangular frame. The second guide rollers 13 provide support when the telescopic plate extends, preventing it from tipping over or deforming.

[0022] The support plate 10 has multiple limiting holes 15, and a guide seat 16 is installed on the top outer side of the partition cavity 8. A limiting pin 17 is installed inside the guide seat 16 and is inserted into the limiting hole 15. When the telescopic plate extends, it can be limited by the limiting pin 17 inserted into the limiting hole 15. A reinforcing rib plate 18 is also installed on the support plate 10. The reinforcing rib plate 18 has through holes corresponding to the multiple limiting holes, through which the limiting pin 17 is inserted into the limiting hole. The reinforcing rib plate enhances the strength of the support plate and prevents deformation under stress.

[0023] In addition, a cushioning rubber 19 is installed on the outside of the rectangular frame 9. The cushioning rubber can prevent the rectangular frame from colliding with the fuselage and causing damage to the fuselage.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A ladder frame base plate transverse sliding assembly structure, comprising an upper platform frame and a lower platform frame, characterized in that: The lower platform frame has two guide grooves along its length on its surface, and the upper platform frame has two connecting plates along its length on its bottom. The two connecting plates are respectively inserted into the two guide grooves. A rotating shaft is installed on the connecting plate, and support rollers are installed at both ends of the rotating shaft. The support rollers are located in the guide grooves. Both the upper and lower platform frames are sandwich structures, and multiple partition cavities are provided between the sandwich layers. Telescopic plate structures are installed in each partition cavity.

2. The ladder frame base plate transverse sliding assembly structure according to claim 1, characterized in that: The telescopic plate structure includes a rectangular frame and a support plate mounted on the rectangular frame. First guide rollers are mounted on both sides of the rectangular frame via rotating shafts. Grooved guide rails are mounted on both sides of the partition cavity. The first guide rollers are located inside the grooved guide rails and are arranged vertically to contact the top and bottom surfaces of the grooved guide rails. Second guide rollers are mounted on the bottom outer side of the partition cavity. The second guide rollers are located at the bottom of the rectangular frame. A limit baffle is also installed at the bottom of the partition cavity to block the tail of the rectangular frame.

3. The ladder frame base plate transverse sliding assembly structure according to claim 2, characterized in that: The support plate is provided with multiple limiting holes, and a guide seat is installed on the top of the outer side of the partition cavity. A limiting pin is installed in the guide seat and is used to be inserted into the limiting hole.

4. The ladder frame base plate transverse sliding assembly structure according to claim 3, characterized in that: The support plate is also equipped with a reinforcing rib plate, which has through holes corresponding to multiple limiting holes. The limiting pin is inserted into the limiting hole through the through hole.

5. The ladder frame base plate transverse sliding assembly structure according to claim 2, characterized in that: The rectangular frame is also fitted with cushioning rubber.

6. The ladder frame base plate transverse sliding assembly structure according to any one of claims 1-5, characterized in that: The upper platform frame is also equipped with multiple support mechanisms. Each support mechanism includes a fixed plate, a lead screw nut mounted on the fixed plate, and a lead screw installed inside the lead screw nut. An operating handwheel is mounted on the top of the lead screw, and a support base is mounted on the bottom. An anti-slip pad is mounted on the bottom of the support base.

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