Aircraft maintenance working ladder

Abstract

The utility model relates to the technical field of maintenance ladders, in particular to an aircraft maintenance working ladder which comprises a base, four universal wheels, a hollow column, an air cylinder, a movable frame, a sliding rod, a spring, a bottom plate, a supporting column, a first frosted plate, a second frosted plate, a lifting assembly and a protection assembly. A second frosted plate firstly makes contact with the ground, at the moment, a spring is compressed, meanwhile, a sliding rod slides upwards in a corresponding sliding hole till the first frosted plate makes contact with the ground, the friction force between the base and the ground is increased through the first frosted plate and the second frosted plate, and the stability of the base is further improved; and the danger in the working environment is eliminated, so that workers can work conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance ladders, in particular to an aircraft maintenance working ladder. Background Art

[0002] During the manufacturing process, work ladders are widely used, especially movable work ladders with working platforms. The bottom of the work ladder is usually equipped with movable rollers to facilitate the movement of the work ladder, that is, the movement of the working platform. Due to the large size and footprint of this work ladder, a relatively spacious and flat work site is required. When repairing or assembling large equipment, a work platform is often required. Aircraft maintenance work requires maintenance personnel to approach various parts of the aircraft, including landing gear, wheel bays, aircraft flaps and other parts. These parts that need to be repaired are located in different places on the aircraft and at different heights. When maintenance personnel approach these parts, they generally need to use aircraft maintenance work ladders.

[0003] The bottom of the existing aircraft maintenance ladder is fixed by the self-locking property of the universal wheel, which is easy to shake when the staff walks, and the stability is poor, which reduces the safety of the staff's working environment. Utility Model Content

[0004] The utility model aims to provide an aircraft maintenance work ladder, aiming to solve the problem that the bottom of the existing aircraft maintenance ladder is fixed by the self-locking property of universal wheels, which is easy to shake when the staff walks, has poor stability, and reduces the safety of the working environment of the staff.

[0005] To achieve the above-mentioned purpose, the utility model provides an aircraft maintenance work ladder, including a base, four universal wheels, a hollow column, a cylinder, a mobile frame, a slide rod, a spring, a bottom plate, a support column, a first grinding plate, a second grinding plate, a lifting assembly and a protection assembly, the four universal wheels are rotatably connected to the base and are respectively located below the base, the hollow column is communicated with the base and is located above the base, the mobile frame is slidably connected to the hollow column and is located on the inner side wall of the hollow column, the cylinder is fixedly connected to the hollow column and is located on the inner top wall of the hollow column, the output end of the cylinder is fixedly connected to the mobile frame and is located above the mobile frame, the bottom plate is connected to the mobile frame The cam is fixedly connected to the bottom of the movable frame, the bottom plate has a sliding hole, the sliding hole is slidably matched with the sliding rod, the support column is fixedly connected to the bottom plate and is located under the bottom plate, the first frosting plate is fixedly connected to the support column and is located under the support column, the second frosting plate is fixedly connected to the sliding rod and is located under the sliding rod, the spring is sleeved on the outer side wall of the sliding rod, one end of the spring is fixedly connected to the bottom plate and is located under the bottom plate, the other end of the spring is fixedly connected to the second frosting plate and is located above the second frosting plate, the lifting assembly is arranged above the base, and the protection assembly is arranged above the base.

[0006] Among them, the lifting assembly includes a threaded barrel, a threaded rod, an installation bin, a self-locking motor, a top plate and a limit rod, the installation bin is fixedly connected to the base and is located above the base, the self-locking motor is fixedly connected to the installation bin and is located at the inner bottom wall of the installation bin, the threaded rod is fixedly connected to the self-locking motor and is located at the output end of the self-locking motor, and the threaded rod passes through the installation bin, the top plate is arranged above the base, the threaded barrel is fixedly connected to the top plate and is located below the top plate, and the threaded barrel is threadedly matched with the threaded rod, the limit rod is fixedly connected to the base and is located above the base, and the limit rod passes through the top plate.

[0007] Among them, the lifting assembly also includes a connecting plate and a control console, the control console is fixedly connected to the base and is located above the base, and the control console is electrically connected to the self-locking motor and the cylinder, one end of the connecting plate is fixedly connected to the top plate and is located below the top plate, and the other end of the connecting plate is fixedly connected to the threaded barrel and is located on the outer wall of the threaded barrel.

[0008] Wherein, the protection assembly includes a protection fence and a side door, the protection fence is fixedly connected to the top plate and is located above the bottom plate, and the side door is hinged to the protection fence and is located on one side of the protection fence.

[0009] Wherein, the aircraft maintenance work ladder also includes a placement component, and the placement component is arranged above the top plate.

[0010] Wherein, the placement component includes a mounting frame and a collection frame, the mounting frame is fixedly connected to the top plate and is located above the top plate, and the collection frame is fixedly connected to the mounting frame and is located above the mounting frame.

[0011] The utility model provides an aircraft maintenance work ladder. When the base needs to be locked, the gas rod is started to make the output end of the gas cylinder push against the movable frame to move downward, and the second grinding plate contacts the ground first. At this time, the spring will be compressed, and at the same time, the slide bar slides upward in the corresponding slide hole until the first grinding plate contacts the ground. The first grinding plate and the second grinding plate are used to increase the friction between the base and the ground, so as to further improve the stability of the base and eliminate the danger in the working environment, so as to facilitate the staff to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0014] Figure 2 It is an overall right side view of the first embodiment of the utility model.

[0015] Figure 3 The utility model Figure 2 AA line section view.

[0016] Figure 4 The utility model Figure 2 BB line cross-sectional view.

[0017] Figure 5 The utility model Figure 4 Enlarged view of the local structure at location C.

[0018] Figure 6 It is an overall structural diagram of the second embodiment of the utility model.

[0019] 101-base, 102-universal wheel, 103-hollow column, 104-cylinder, 105-movable frame, 106-slide rod, 107-spring, 108-bottom plate, 109-support column, 110-first grinding plate, 111-second grinding plate, 112-lifting assembly, 113-protection assembly, 114-threaded cylinder, 115-threaded rod, 116-installation bin, 117-self-locking motor, 118-top plate, 119-limiting rod, 120-connecting plate, 121-control console, 122-protection railing, 123-side door, 124-slide hole, 201-placing assembly, 202-installation frame, 203-collection frame. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] First embodiment:

[0022] See also Figures 1 to 5 ,in, Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is the overall right side view of the first embodiment of the utility model. Figure 3 The utility model Figure 2 AA line section view, Figure 4 The utility model Figure 2 BB line cross-sectional view, Figure 5 The utility model Figure 4 Enlarged view of the local structure at location C.

[0023] The utility model provides an aircraft maintenance work ladder, comprising a base 101, four universal wheels 102, a hollow column 103, a cylinder 104, a mobile frame 105, a sliding rod 106, a spring 107, a bottom plate 108, a supporting column 109, a first grinding plate 110, a second grinding plate 111, a lifting component 112 and a protection component 113, wherein the lifting component 112 comprises a threaded barrel 114, a threaded rod 115, an installation bin 116, a self-locking motor 117, a top plate 118, a limiting rod 119, a connecting plate 120 and a control console 121, the protection component 113 comprises a protection fence 122 and a side door 123, and the bottom plate 108 has a sliding hole 124.

[0024] According to the present specific embodiment, the four universal wheels 102 are all rotatably connected to the base 101 and are respectively located below the base 101. The hollow column 103 is connected to the base 101 and is located above the base 101. The mobile frame 105 is slidably connected to the hollow column 103 and is located on the inner side wall of the hollow column 103. The cylinder 104 is fixedly connected to the hollow column 103 and is located on the inner top wall of the hollow column 103. The output end of the cylinder 104 is fixedly connected to the mobile frame 105 and is located at The bottom plate 108 is fixedly connected to the moving frame 105 and is located below the moving frame 105. The bottom plate 108 has a sliding hole 124, and the sliding hole 124 is slidably matched with the sliding rod 106. The support column 109 is fixedly connected to the bottom plate 108 and is located below the bottom plate 108. The first grinding plate 110 is fixedly connected to the support column 109 and is located below the support column 109. The second grinding plate 111 is fixedly connected to the sliding rod 106 and is located above the moving frame 105. The spring 107 is sleeved on the outer wall of the slide bar 106, one end of the spring 107 is fixedly connected to the bottom plate 108 and is located below the bottom plate 108, and the other end of the spring 107 is fixedly connected to the second grinding plate 111 and is located above the second grinding plate 111. The lifting component 112 is arranged above the base 101, and the protection component 113 is arranged above the base 101. When the base 101 needs to be locked, the gas rod is started to make the cylinder 1 The output end of 04 pushes the movable frame 105 to move downward, and the second sanding plate 111 contacts the ground first. At this time, the spring 107 will be compressed. At the same time, the slide bar 106 slides upward in the corresponding slide hole 124 until the first sanding plate 110 contacts the ground. The first sanding plate 110 and the second sanding plate 111 are used to increase the friction between the base 101 and the ground, thereby further improving the stability of the base 101 and eliminating the danger in the working environment, so as to facilitate the work of the staff.

[0025] The mounting bin 116 is fixedly connected to the base 101 and is located above the base 101. The self-locking motor 117 is fixedly connected to the mounting bin 116 and is located on the inner bottom wall of the mounting bin 116. The threaded rod 115 is fixedly connected to the self-locking motor 117 and is located at the output end of the self-locking motor 117. The threaded rod 115 passes through the mounting bin 116. The top plate 118 is disposed above the base 101. The threaded barrel 114 is fixedly connected to the top plate 118 and is located at the bottom wall of the mounting bin 116. Below the top plate 118, the threaded barrel 114 is threadedly matched with the threaded rod 115, the limiting rod 119 is fixedly connected to the base 101 and is located above the base 101, and the limiting rod 119 passes through the top plate 118, and the self-locking motor 117 in the installation bin 116 is started to rotate the threaded rod 115 in the threaded barrel 114. Due to the characteristics of the thread, the top plate 118 will continue to move upward with the assistance of the limiting rod 119, so that the staff can work at high altitudes.

[0026] Secondly, the control console 121 is fixedly connected to the base 101 and is located above the base 101, and the control console 121 is electrically connected to the self-locking motor 117 and the cylinder 104. One end of the connecting plate 120 is fixedly connected to the top plate 118 and is located below the top plate 118. The other end of the connecting plate 120 is fixedly connected to the threaded barrel 114 and is located on the outer wall of the threaded barrel 114. The connecting plate 120 can share the pressure borne by the threaded barrel 114 to avoid root breakage during use, and the control console 121 can control the self-locking motor 117 and the cylinder 104 through PLC programming, which effectively reduces the workload of the staff.

[0027] At the same time, the protective fence 122 is fixedly connected to the top plate 118 and is located above the bottom plate 108. The side door 123 is hinged to the protective fence 122 and is located on one side of the protective fence 122. The protective fence 122 and the side door 123 can limit the area of ​​​​staff activities to ensure the safety of the staff.

[0028] When using the aircraft maintenance work ladder of the utility model, when it is necessary to lock the base 101, the gas rod is started to make the output end of the cylinder 104 press against the moving frame 105 to move downward, and the second grinding plate 111 first contacts the ground. At this time, the spring 107 will be compressed. At the same time, the sliding rod 106 slides upward in the corresponding sliding hole 124 until the first grinding plate 110 contacts the ground. The self-locking motor 117 in the installation bin 116 is started to make the threaded rod 115 rotate in the threaded barrel 114. Due to the characteristics of the thread, the top plate 118 will continue to move upward with the assistance of the limiting rod 119, which is convenient for the staff to reach the high ground. The connection plate 120 can share the pressure on the threaded barrel 114 to avoid root breakage during use, and the control console 121 can control the self-locking motor 117 and the cylinder 104 through PLC programming, which effectively reduces the workload of the staff. The protection fence 122 and the side door 123 can limit the area of ​​​​the staff's activities to ensure the safety of the staff. The first sanding plate 110 and the second sanding plate 111 are used to increase the friction between the base 101 and the ground, and further improve the stability of the base 101, eliminating the danger in the working environment, so as to facilitate the staff to work.

[0029] Second embodiment:

[0030] Based on the first embodiment, please refer to Figure 6 , Figure 6 It is an overall structural diagram of the second embodiment of the utility model.

[0031] The utility model provides an aircraft maintenance work ladder, which also includes a placement component 201 . The placement component 201 includes a mounting frame 202 and a collection frame 203 .

[0032] According to this specific embodiment, the placement component 201 is disposed above the top plate 118. Adding the placement component 201 can facilitate workers to place maintenance tools to avoid dropping them on the ground, thereby reducing unnecessary cost losses.

[0033] Among them, the mounting frame 202 is fixedly connected to the top plate 118 and is located above the top plate 118, and the collection frame 203 is fixedly connected to the mounting frame 202 and is located above the mounting frame 202. With the cooperation of the mounting frame 202 and the collection frame 203, it is convenient for the staff to place the maintenance tools to avoid dropping them on the ground, thereby reducing unnecessary cost losses.

[0034] When using the aircraft maintenance work ladder of the utility model, the cooperation of the mounting frame 202 and the collecting frame 203 can facilitate the staff to place the maintenance tools to avoid dropping them on the ground, thereby reducing unnecessary cost losses.

[0035] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An aircraft maintenance work ladder, characterized in that: The utility model comprises a base, four universal wheels, a hollow column, a cylinder, a movable frame, a sliding rod, a spring, a bottom plate, a supporting column, a first grinding plate, a second grinding plate, a lifting assembly and a protection assembly, wherein the four universal wheels are rotatably connected to the base and are respectively located below the base, the hollow column is communicated with the base and is located above the base, the movable frame is slidably connected to the hollow column and is located on the inner side wall of the hollow column, the cylinder is fixedly connected to the hollow column and is located on the inner top wall of the hollow column, the output end of the cylinder is fixedly connected to the movable frame and is located above the movable frame, and the bottom plate is fixedly connected to the movable frame and is located on the movable frame The bottom plate has a sliding hole, and the sliding hole is slidably matched with the sliding rod. The support column is fixedly connected to the bottom plate and is located below the bottom plate. The first frosting plate is fixedly connected to the support column and is located below the support column. The second frosting plate is fixedly connected to the sliding rod and is located below the sliding rod. The spring is sleeved on the outer side wall of the sliding rod. One end of the spring is fixedly connected to the bottom plate and is located below the bottom plate. The other end of the spring is fixedly connected to the second frosting plate and is located above the second frosting plate. The lifting assembly is arranged above the base, and the protection assembly is arranged above the base.

2. The aircraft maintenance work ladder according to claim 1, characterized in that: The lifting assembly includes a threaded barrel, a threaded rod, an installation bin, a self-locking motor, a top plate and a limit rod. The installation bin is fixedly connected to the base and is located above the base. The self-locking motor is fixedly connected to the installation bin and is located at the inner bottom wall of the installation bin. The threaded rod is fixedly connected to the self-locking motor and is located at the output end of the self-locking motor, and the threaded rod passes through the installation bin. The top plate is arranged above the base. The threaded barrel is fixedly connected to the top plate and is located below the top plate, and the threaded barrel is threadedly matched with the threaded rod. The limit rod is fixedly connected to the base and is located above the base, and the limit rod passes through the top plate.

3. The aircraft maintenance work ladder according to claim 2, characterized in that: The lifting assembly also includes a connecting plate and a control console, wherein the control console is fixedly connected to the base and is located above the base, and the control console is electrically connected to the self-locking motor and the cylinder, one end of the connecting plate is fixedly connected to the top plate and is located below the top plate, and the other end of the connecting plate is fixedly connected to the threaded barrel and is located on the outer side wall of the threaded barrel.

4. The aircraft maintenance work ladder according to claim 3, characterized in that: The protection assembly comprises a protection fence and a side door. The protection fence is fixedly connected to the top plate and is located above the bottom plate. The side door is hinged to the protection fence and is located on one side of the protection fence.

5. The aircraft maintenance work ladder according to claim 4, characterized in that: The aircraft maintenance work ladder also includes a placement component, and the placement component is arranged above the top plate.

6. The aircraft maintenance work ladder according to claim 5, characterized in that: The placement assembly includes a mounting frame and a collection frame. The mounting frame is fixedly connected to the top plate and is located above the top plate. The collection frame is fixedly connected to the mounting frame and is located above the mounting frame.

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