Lifting working ladder for aircraft maintenance

Abstract

The utility model relates to the technical field of angle adjustment, and discloses a lifting working ladder for aircraft maintenance, which comprises a fixing frame, a lifting device and a lifting device, the universal wheels are arranged at the bottom of the fixing frame; the hydraulic cylinder I is arranged on one side of the fixing frame; the telescopic mechanism is arranged at the top of the fixing frame; the angle adjusting mechanism is arranged at the top of the fixing frame, the bottom of the fixing frame is rotatably connected with the tops of the universal wheels, one side of the fixing frame is fixedly connected with one side of the first hydraulic cylinder, and the telescopic mechanism comprises a first fixing block. The rotating rod rotates to drive a first bevel gear to rotate, the first bevel gear rotates to drive a second bevel gear to rotate, the second bevel gear rotates to drive a threaded rod to rotate, the threaded rod rotates to drive a supporting rod to move, the supporting rod moves to drive a third fixing block to move, and the third fixing block moves to drive a first fixing block to move, so that the effect of adjusting the angle of the working ladder is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle adjustment, in particular to a lifting working ladder for aircraft maintenance. Background Art

[0002] The aircraft maintenance lift work ladder is a high-altitude work equipment designed specifically for aircraft maintenance. It is used to provide maintenance personnel with the platform required to reach various maintenance parts of the aircraft. This type of lift work ladder has the characteristics of stable structure, smooth lifting, flexible movement, and easy operation, ensuring that maintenance personnel can complete maintenance tasks safely and efficiently when working at high altitudes.

[0003] However, the existing products still have shortcomings. For example, the angles of the existing products cannot be adjusted well according to the specific needs of the maintenance work. Therefore, maintenance personnel may find it difficult to reach certain maintenance points on the aircraft, or need to spend more time and energy to adjust their position, thereby reducing the efficiency of the maintenance work. Utility Model Content

[0004] The purpose of the utility model is to provide a lifting working ladder for aircraft maintenance, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting work ladder for aircraft maintenance, comprising: a fixed frame; a universal wheel, arranged at the bottom of the fixed frame; a hydraulic cylinder, arranged at one side of the fixed frame; a lifting and retracting mechanism, arranged at the top of the fixed frame; and an angle adjustment mechanism, arranged at the top of the fixed frame.

[0006] Preferably, the bottom of the fixing frame is rotatably connected to the top of the universal wheel, and one side of the fixing frame is fixedly connected to one side of the hydraulic cylinder.

[0007] Preferably, the lifting and retracting mechanism includes: a fixed block 1, which is arranged on the top of the fixed frame; the bottom of the fixed block 1 is fixedly connected to the top of the fixed frame, one side of the fixed block 1 is movably connected to a connecting block 1, one side of the connecting block 1 is fixedly connected to a fixed plate 1, one side of the fixed plate 1 is fixedly connected to a step 1, and the other side of the fixed plate 1 is fixedly connected to a handrail 1.

[0008] Preferably, a fixing groove is provided at the inner top of the fixing plate 1, a hydraulic cylinder 2 is arranged in the fixing groove of the fixing plate 1, and an output end of the hydraulic cylinder 2 is fixedly connected to a connecting plate.

[0009] Preferably, the bottom of the connecting plate is fixedly connected to a fixing plate 2, one side of the fixing plate 2 is fixedly connected to a handrail 2, one side of the fixing plate 2 is fixedly connected to a step 2, and the other side of the fixing plate 2 is slidably connected to one side of the fixing plate 1. Through the lifting and retracting mechanism, the telescopic effect of the working ladder can be well achieved.

[0010] Preferably, the angle adjustment mechanism includes: a second fixing block, which is arranged on the top of the fixing frame; the bottom of the second fixing block and the top of the fixing frame, one side of the second fixing block is movably connected with a second connecting block, one side of the second connecting block is fixedly connected with a support plate, one side of the support plate is rotatably connected with a rotating rod, one side of the rotating rod is fixedly connected with a handle, the outer wall of the rotating rod is fixedly sleeved with a bevel gear one, the bevel gear one is meshingly connected with a bevel gear two, and the inner wall of the bevel gear two is fixedly connected with a threaded rod.

[0011] Preferably, a fixing plate is rotatably sleeved on the outer wall of the threaded rod, the outer wall of the threaded rod is threadedly connected to a support rod, one side of the support rod is slidably connected to a slide rail, the top of the support rod is fixedly connected to a fixing block three, and one side of the fixing block three is rotatably connected to a connecting block.

[0012] Preferably, the outer wall of the fixed plate is fixedly connected to the inner wall of the support plate, one side of the slide rail is fixedly connected to the inner wall of the support plate, and one side of the connecting block is fixedly connected to one side of the fixed plate. Through this angle adjustment mechanism, the effect of adjusting the angle of the working ladder can be well achieved.

[0013] The utility model provides a lifting work ladder for aircraft maintenance, which has the following beneficial effects:

[0014] (1) The utility model moves the fixing frame to a suitable position, starts the first hydraulic cylinder to squeeze the fixing frame, so that the universal wheel leaves the ground, and then starts the second hydraulic cylinder. The operation of the second hydraulic cylinder drives the connecting plate to move and drives the second fixing plate to move, thereby achieving the effect of extending and retracting the working ladder.

[0015] (2) The utility model achieves the effect of adjusting the angle of the working ladder by rotating the handle, which drives the rotating rod to rotate, which drives the bevel gear one to rotate, which drives the bevel gear two to rotate, which drives the threaded rod to rotate, which drives the support rod to move, which drives the fixed block three to move, which drives the fixed block one to move, thereby achieving the effect of adjusting the angle of the working ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified view of center A;

[0019] Figure 4 For this utility model Figure 2 Magnified view of B.

[0020] In the figure: 1 fixed frame, 2 universal wheel, 3 hydraulic cylinder 1, 4 lifting and retracting mechanism, 411 fixed block 1, 412 connecting block 1, 413 fixed plate 1, 414 step 1, 415 handrail 1, 416 hydraulic cylinder 2, 417 connecting plate, 418 fixed plate 2, 419 handrail 2, 4110 step 2, 5 angle adjustment mechanism, 511 fixed block 2, 512 connecting block 2, 513 support plate, 514 rotating rod, 515 bevel gear 1, 516 bevel gear 2, 517 threaded rod, 518 fixed plate, 519 support rod, 5110 slide rail, 5111 fixed block 3, 5112 connecting block, 5113 handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] Example 1

[0024] A preferred embodiment of the aircraft maintenance lift provided by the utility model is as follows: Figure 1-4 As shown: A lifting work ladder for aircraft maintenance, comprising: a fixed frame 1; a universal wheel 2, arranged at the bottom of the fixed frame 1; a hydraulic cylinder 3, arranged at one side of the fixed frame 1; a lifting and retracting mechanism 4, arranged at the top of the fixed frame 1; and an angle adjustment mechanism 5, arranged at the top of the fixed frame 1.

[0025] The bottom of the fixing frame 1 is rotatably connected to the top of the universal wheel 2, and one side of the fixing frame 1 is fixedly connected to one side of the hydraulic cylinder 1 3.

[0026] The lifting and retracting mechanism 4 includes: a fixed block 411, which is arranged on the top of the fixed frame 1; the bottom of the fixed block 411 is fixedly connected to the top of the fixed frame 1, one side of the fixed block 411 is movably connected to a connecting block 412, one side of the connecting block 412 is fixedly connected to a fixing plate 413, one side of the fixing plate 413 is fixedly connected to a step 414, and the other side of the fixing plate 413 is fixedly connected to a handrail 415.

[0027] A fixing groove is provided at the inner top of the fixing plate 1 413 , and a hydraulic cylinder 2 416 is arranged in the fixing groove of the fixing plate 1 413 . The output end of the hydraulic cylinder 2 416 is fixedly connected to a connecting plate 417 .

[0028] The bottom of the connecting plate 417 is fixedly connected to a fixing plate 2 418 , one side of the fixing plate 2 418 is fixedly connected to a handrail 2 419 , one side of the fixing plate 2 418 is fixedly connected to a step 2 4110 , and the other side of the fixing plate 2 418 is slidably connected to one side of the fixing plate 1 413 .

[0029] Furthermore, in this embodiment, the fixing frame 1 is moved to a suitable position, and the hydraulic cylinder 1 3 is started to squeeze the fixing frame 1, so that the universal wheel 2 leaves the ground, and then the hydraulic cylinder 2 416 is started. The operation of the hydraulic cylinder 2 416 drives the connecting plate 417 to move and drives the fixing plate 2 418 to move, thereby achieving the effect of extending and retracting the working ladder.

[0030] Example 2

[0031] Based on Example 1, a preferred embodiment of the aircraft maintenance lift ladder provided by the utility model is as follows: Figure 1-4 As shown: the angle adjustment mechanism 5 includes: a second fixing block 511, which is arranged on the top of the fixing frame 1; the bottom of the second fixing block 511 and the top of the fixing frame 1, one side of the second fixing block 511 is movably connected with a second connecting block 512, one side of the connecting block 512 is fixedly connected with a support plate 513, one side of the support plate 513 is rotatably connected with a rotating rod 514, one side of the rotating rod 514 is fixedly connected with a handle 5113, the outer wall of the rotating rod 514 is fixedly sleeved with a bevel gear 1 515, the bevel gear 1 515 is meshingly connected with a bevel gear 2 516, and the inner wall of the bevel gear 2 516 is fixedly connected with a threaded rod 517.

[0032] A fixing plate 518 is rotatably sleeved on the outer wall of the threaded rod 517, a support rod 519 is threadedly connected to the outer wall of the threaded rod 517, a slide rail 5110 is slidably connected to one side of the support rod 519, a fixing block three 5111 is fixedly connected to the top of the support rod 519, and a connecting block 5112 is rotatably connected to one side of the fixing block three 5111.

[0033] The outer wall of the fixing plate 518 is fixedly connected to the inner wall of the supporting plate 513 , one side of the slide rail 5110 is fixedly connected to the inner wall of the supporting plate 513 , and one side of the connecting block 5112 is fixedly connected to one side of the fixing plate 413 .

[0034] Furthermore, in this embodiment, by rotating the handle 5113, the rotation of the handle 5113 drives the rotating rod 514 to rotate, the rotation of the rotating rod 514 drives the bevel gear 1 515 to rotate, the rotation of the bevel gear 1 515 drives the bevel gear 2 516 to rotate, the rotation of the bevel gear 2 516 drives the threaded rod 517 to rotate, the rotation of the threaded rod 517 drives the support rod 519 to move, the movement of the support rod 519 drives the fixed block 3 5111 to move, the movement of the fixed block 3 5111 drives the fixed block 1 411 to move, thereby achieving the effect of adjusting the angle of the working ladder.

[0035] When in use, by rotating the handle 5113, the handle 5113 rotates and the rotating rod 514 rotates, the rotating rod 514 rotates and the bevel gear 1 515 rotates, the bevel gear 1 515 rotates and the bevel gear 2 516 rotates, the bevel gear 2 516 rotates and the threaded rod 517 rotates, the threaded rod 517 rotates and the support rod 519 moves, the support rod 519 moves and the fixed block 3 5111 moves, the fixed block 3 5111 moves and the fixed block 1 411 moves, so as to adjust the angle of the working ladder, by moving the fixed frame 1 to a suitable position, starting the hydraulic cylinder 1 3 to squeeze the fixed frame 1, so that the universal wheel 2 leaves the ground, and then starting the hydraulic cylinder 2 416, the hydraulic cylinder 2 416 runs and drives the connecting plate 417 to move and drives the fixed plate 2 418 to move to achieve the extension and retraction of the working ladder.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lifting work ladder for aircraft maintenance, characterized in that: include: Fixed frame (1); Universal wheels (2) are arranged at the bottom of the fixed frame (1); A hydraulic cylinder (3) is arranged on one side of the fixed frame (1); A lifting and retracting mechanism (4) is arranged on the top of the fixing frame (1); An angle adjustment mechanism (5) is arranged on the top of the fixing frame (1).

2. The aircraft maintenance lift work ladder according to claim 1, characterized in that: The bottom of the fixed frame (1) is rotatably connected to the top of the universal wheel (2), and one side of the fixed frame (1) is fixedly connected to one side of the hydraulic cylinder (3).

3. The aircraft maintenance lift work ladder according to claim 1, characterized in that: The lifting and shrinking mechanism (4) comprises: A fixing block 1 (411), arranged on the top of the fixing frame (1); The bottom of the fixing block 1 (411) is fixedly connected to the top of the fixing frame (1); one side of the fixing block 1 (411) is movably connected to a connecting block 1 (412); one side of the connecting block 1 (412) is fixedly connected to a fixing plate 1 (413); one side of the fixing plate 1 (413) is fixedly connected to a step 1 (414); and the other side of the fixing plate 1 (413) is fixedly connected to a handrail 1 (415).

4. The aircraft maintenance lift work ladder according to claim 3, characterized in that: A fixing groove is provided at the inner top of the fixing plate 1 (413), a hydraulic cylinder 2 (416) is arranged in the fixing groove of the fixing plate 1 (413), and a connecting plate (417) is fixedly connected to the output end of the hydraulic cylinder 2 (416).

5. The aircraft maintenance lift work ladder according to claim 4, characterized in that: The bottom of the connecting plate (417) is fixedly connected to a second fixing plate (418), one side of the second fixing plate (418) is fixedly connected to a second handrail (419), one side of the second fixing plate (418) is fixedly connected to a second step (4110), and the other side of the second fixing plate (418) is slidably connected to one side of the first fixing plate (413).

6. The aircraft maintenance lift work ladder according to claim 1, characterized in that: The angle adjustment mechanism (5) comprises: A second fixing block (511) is arranged on the top of the fixing frame (1); The bottom of the second fixing block (511) is connected to the top of the fixing frame (1); one side of the second fixing block (511) is movably connected to the second connecting block (512); one side of the second connecting block (512) is fixedly connected to the supporting plate (513); one side of the supporting plate (513) is rotatably connected to the rotating rod (514); one side of the rotating rod (514) is fixedly connected to the handle (5113); the outer wall of the rotating rod (514) is fixedly sleeved with a bevel gear (515); the bevel gear (515) is meshingly connected to the second bevel gear (516); the inner wall of the second bevel gear (516) is fixedly connected to the threaded rod (517).

7. The aircraft maintenance lift work ladder according to claim 6, characterized in that: The outer wall of the threaded rod (517) is rotatably sleeved with a fixing plate (518), the outer wall of the threaded rod (517) is threadedly connected to a support rod (519), one side of the support rod (519) is slidably connected to a slide rail (5110), the top of the support rod (519) is fixedly connected to a fixing block three (5111), and one side of the fixing block three (5111) is rotatably connected to a connecting block (5112).

8. The aircraft maintenance lift work ladder according to claim 7, characterized in that: The outer wall of the fixing plate (518) is fixedly connected to the inner wall of the supporting plate (513), one side of the sliding rail (5110) is fixedly connected to the inner wall of the supporting plate (513), and one side of the connecting block (5112) is fixedly connected to one side of the fixing plate (413).

Images