CN211851635U - A320 series aircraft nose landing gear maintenance work ladder - Google Patents
A320 series aircraft nose landing gear maintenance work ladder Download PDFInfo
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- CN211851635U CN211851635U CN201922170797.0U CN201922170797U CN211851635U CN 211851635 U CN211851635 U CN 211851635U CN 201922170797 U CN201922170797 U CN 201922170797U CN 211851635 U CN211851635 U CN 211851635U
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- landing gear
- bolt
- maintenance work
- aircraft nose
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Abstract
The utility model provides a A320 series aircraft nose landing gear maintenance work ladder, when needing to be close to the main landing gear of A320 series aircraft, when carrying out grease lubrication work, promote the bolt pole through the bolt handle in order to release lower returning face plate, make lower returning face plate overturn downwards, be close to the main landing gear with this maintenance work ladder, make the main landing gear be in within the breach, be wrapped up by the operation platform, provide better operating condition for the maintenance worker, also make the maintenance worker not need frequently adjust the posture, effectively prevent effectively that the maintenance worker is unexpected to fall; and when other positions of main undercarriage need to be maintained, will descend the returning face plate upwards upset and through the bolt locking, can be when expanding the working face, make things convenient for maintenance worker's maintenance, improve worker work efficiency, through experimental, to the lubricated work of grease, use this work ladder to save operating time about 0.25 hours.
Description
Technical Field
The utility model relates to a maintenance work ladder, in particular to a nose landing gear maintenance work ladder for A320 series aircraft.
Background
Aircraft maintenance operations require maintenance personnel to access various parts of the aircraft, such as the nose landing gear.
For an A320 series airplane, the nose landing structure is complex, the component span is large, the heights of the existing general working ladder and the nose landing gear are not matched, and the general working ladder is not easy to approach due to the blocking of tires, so that the nose landing gear components of the airplane are easy to scratch by the general working ladder, and potential hazards are caused to aviation safety.
In addition, because the maintenance worker of current general work ladder stands the position not well, and the position of some eminences is difficult to be close, needs frequently to adjust the appearance of standing in the maintenance process, and is tired easily, produces the risk of falling.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a maintenance work ladder of ability adaptation A320 series aircraft nose landing gear is just proposed, aim at making the maintenance worker can use this ladder to be close to the suitable position of the nose landing gear of A320 aircraft for the maintenance worker can maintain the nose landing gear comfortably, avoids frequently adjusting the appearance of standing.
For solving the technical problem, the utility model discloses the technical scheme who adopts as follows:
an A320 series aircraft nose landing gear maintenance work ladder, comprising:
the bottom of the ladder frame is a horizontally-laid door-shaped frame consisting of a door head and two legs, universal wheels are arranged at the bottom of the ladder frame, and two legs are respectively provided with a foot margin;
the working platform is fixedly supported above the top of the ladder frame through a truss and is connected with a door head of a door-shaped frame at the bottom of the ladder frame through a ladder section, the middle edge of the working platform at the opposite side of the ladder section is provided with a notch, the size of the notch corresponds to that of a main landing gear main frame of an A320 series airplane, so that the main landing gear main frame can enter, the upper end faces of the working platform at the edges of two sides of the notch are respectively provided with a bolt, and a bolt rod of the bolt can extend into the notch along the extending direction of the middle edge;
and the size of the lower turnover plate corresponds to the gap of the operation platform, one side of the lower turnover plate is connected with the operation platform through a rotating shaft at the inner side edge of the gap, and two corners of the outer side edge are respectively provided with a bolt hole corresponding to the position of each bolt.
On the basis, the utility model discloses can also have following various improvements:
and a spring bolt is arranged on the lower end face of the operation platform, the side edge of the notch and one side of the rotating shaft facing the notch.
Furthermore, except the edge of the joint of the operation platform and the ladder section, the rest outer edges are provided with skirting railings.
Furthermore, the outer side edge of the lower turnover plate is provided with a handle, the handle is as high as the kick railing, and a gap reserved between the handle and the kick railing is used for placing a bolt handle arranged on the bolt rod.
Furthermore, the skirting railing and the handle are both covered with anti-collision protective glue.
Furthermore, one side of the ladder frame is provided with a towing rod.
Further, handrails are arranged on two sides of the ladder section.
Compared with the prior art, the utility model, following beneficial effect has:
when the maintenance working ladder needs to be close to a main undercarriage of an A320 series airplane and is subjected to grease lubrication, the bolt rod is pushed through the bolt handle to release the lower turnover plate, so that the lower turnover plate is turned downwards, the maintenance working ladder is close to the main undercarriage, the main undercarriage is located in the notch and is wrapped by the operation platform, better operation conditions are provided for maintenance workers, the maintenance workers do not need to frequently adjust postures, and the effective maintenance workers are effectively prevented from falling accidentally; and when other positions of main undercarriage need to be maintained, will descend the returning face plate upwards upset and through the bolt locking, can be when expanding the working face, make things convenient for maintenance worker's maintenance, improve worker work efficiency, through experimental, to the lubricated work of grease, use this work ladder to save operating time about 0.25 hours.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention and an enlarged view of the position of the latch;
fig. 3 is a side view of the present invention;
FIG. 4 is a rear view of the present invention and an enlarged view of the spring bolt portion;
fig. 5 is a schematic diagram of the present invention in use with a nose landing gear of an a320 series aircraft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indicators (such as … …, upper, lower, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are involved in the embodiments of the present invention, the directional indicators are only used to explain the relative position, motion, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a A320 series aircraft nose landing gear maintenance work ladder.
In the embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 4, the a320 series aircraft nose landing gear maintenance work ladder includes a ladder frame 1 and a work platform 2, a ladder section 3 connecting the ladder frame 1 and the work platform 2, and a lower roll-over plate 4 disposed in the work platform 2.
Specifically, the bottom of the ladder frame 1 is a flat door-shaped frame composed of a door lintel 101 and two legs 102 and 103, universal wheels 5 are arranged at the bottom and positioned at four corners of the door-shaped frame, and two legs 6 are respectively arranged at the two legs 102 and 103 of the door-shaped frame; the operation platform 2 is fixedly supported above the top of the ladder frame 1 through a truss and is connected with a door head 101 of a door-shaped frame at the bottom of the ladder frame 1 through a ladder section 3, a notch is formed in the middle edge of the opposite side of the ladder section 3, the size of the notch corresponds to that of a main landing gear main frame of an A320 series airplane, a bolt 7 is respectively arranged on the upper end faces of the operation platform 2 at the edges of two sides of the notch, a bolt rod 71 of the bolt 7 can extend into the notch along the extending direction of the edge of the middle part, the size of the lower turnover plate 4 corresponds to that of the operation platform 2, one side of the lower turnover plate is connected with the operation platform through a rotating shaft 8 at the edge of the inner side of the notch, and two corners of the outer side edge are respectively provided with a bolt hole 9 corresponding.
In the embodiment of the present invention, as shown in fig. 3 to 4, a spring bolt 10 is disposed at one side of the notch of the lower end surface of the operation platform 2, the side of the notch, and the rotating shaft 8, and after the lower turning plate 4 is turned downward, the bolt rod 1001 of the spring bolt 10 extends toward the notch, so that it transversely spans on the upper end surface of the lower turning plate 4, thereby locking the lower turning plate 4, and avoiding the collision of the main landing gear caused by the shaking of the lower turning plate 4 due to the action of the maintenance worker during the maintenance process.
In the embodiment of the present invention, as shown in fig. 1 to 4, except the edge of the connection part between the work platform 2 and the bench 3, the rest outer edges are provided with the skirting rail 11 to prevent the maintenance worker from stepping empty when performing maintenance work; the outer edge of the lower turnover plate 4 is provided with a handle 12 so that maintenance workers can conveniently lift the lower turnover plate 4 on the operation platform; the handle 12 is as high as the kick railing 11, so that the handle 12 also plays a role of preventing the kick railing 11 from being empty; a gap is reserved between the handle 12 and the skirting railing 11 and used for placing a bolt handle 72 arranged on the bolt rod 71, so that the bolt handle 72 is locked by the skirting railing 11, and potential safety hazards caused by accidental unlocking of the lower turnover plate 4 due to loosening of the bolt rod 71 are avoided; the skirting rail 11 and the handle 12 are coated with anti-collision protective glue, so that the collision between the skirting rail and the main landing gear is reduced, and the main landing gear is prevented from being damaged; a towing rod 13 is arranged at one side of the ladder frame 1 so as to facilitate the towing of engineering vehicles such as a trailer and the like to the maintenance work ladder; handrails 14 are provided on both sides of the bench 3 to facilitate climbing of maintenance workers while protecting the safety of the maintenance workers.
When the maintenance work ladder is used, the bolt handle 72 pushes the bolt rod to release the lower turnover plate 4, after the lower turnover plate 4 is turned downwards, the bolt rod 1001 of the spring bolt 10 extends towards the gap direction to lock the lower turnover plate 4, the maintenance work ladder is close to the main landing gear of an A320 series airplane, and the main landing gear is located in the gap and is wrapped by the operation platform 2, as shown in fig. 5. When the main undercarriage is required to be maintained and is close to the top, the maintenance working ladder is pushed open, the main undercarriage is located outside the notch, the spring bolt 10 is unlocked, the lower turnover plate 4 is lifted up through the handle 12 and locked through the bolt 7, and the maintenance of a maintenance worker is facilitated while the working surface is enlarged.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (7)
1. An A320 series aircraft nose landing gear maintenance work ladder, comprising:
the bottom of the ladder frame is a horizontally-laid door-shaped frame consisting of a door head and two legs, universal wheels are arranged at the bottom of the ladder frame, and two legs are respectively provided with a foot margin;
the working platform is fixedly supported above the top of the ladder frame through a truss and is connected with a door head of a door-shaped frame at the bottom of the ladder frame through a ladder section, the middle edge of the working platform at the opposite side of the ladder section is provided with a notch, the size of the notch corresponds to that of a main landing gear main frame of an A320 series airplane, so that the main landing gear main frame can enter, the upper end faces of the working platform at the edges of two sides of the notch are respectively provided with a bolt, and a bolt rod of the bolt can extend into the notch along the extending direction of the middle edge;
and the size of the lower turnover plate corresponds to the gap of the operation platform, one side of the lower turnover plate is connected with the operation platform through a rotating shaft at the inner side edge of the gap, and two corners of the outer side edge are respectively provided with a bolt hole corresponding to the position of each bolt.
2. The a320 series aircraft nose landing gear maintenance work ladder of claim 1, wherein: and a spring bolt is arranged on the lower end face of the operation platform, the side edge of the notch and one side of the rotating shaft facing the notch.
3. The a320 series aircraft nose landing gear maintenance work ladder of claim 2, wherein: except the edge of the joint of the operation platform and the ladder section, the rest outer side edges are provided with skirting railings.
4. The a320 series aircraft nose landing gear maintenance work ladder of claim 3, wherein: the handle is arranged on the outer side edge of the lower turnover plate, the handle and the skirting railing are equal in height, and a gap reserved between the handle and the skirting railing is used for placing a plug handle arranged on the plug rod.
5. An A320 series aircraft nose landing gear maintenance work ladder according to any of claims 3 to 4, wherein: the skirting railing and the handle are both covered with anti-collision protective glue.
6. The a320 series aircraft nose landing gear maintenance work ladder of claim 5, wherein: one side of the ladder frame is provided with a towing bar.
7. The a320 series aircraft nose landing gear maintenance work ladder of claim 6, wherein: handrails are arranged on two sides of the ladder section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922170797.0U CN211851635U (en) | 2019-12-06 | 2019-12-06 | A320 series aircraft nose landing gear maintenance work ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922170797.0U CN211851635U (en) | 2019-12-06 | 2019-12-06 | A320 series aircraft nose landing gear maintenance work ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211851635U true CN211851635U (en) | 2020-11-03 |
Family
ID=73215542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922170797.0U Active CN211851635U (en) | 2019-12-06 | 2019-12-06 | A320 series aircraft nose landing gear maintenance work ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211851635U (en) |
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2019
- 2019-12-06 CN CN201922170797.0U patent/CN211851635U/en active Active
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