CN108528752B - General rear cabin working ladder - Google Patents
General rear cabin working ladder Download PDFInfo
- Publication number
- CN108528752B CN108528752B CN201810565634.XA CN201810565634A CN108528752B CN 108528752 B CN108528752 B CN 108528752B CN 201810565634 A CN201810565634 A CN 201810565634A CN 108528752 B CN108528752 B CN 108528752B
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- CN
- China
- Prior art keywords
- connecting rod
- ladder
- supporting
- leg
- assembly
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/36—Other airport installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/40—Maintaining or repairing aircraft
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses a general rear cabin working ladder, which comprises a climbing ladder component, an overhanging ladder component, a leg supporting component and a connecting rod component; the climbing ladder assembly comprises a supporting beam and a first pedal, the overhanging ladder assembly comprises side legs and a second pedal, the overhanging ladder assembly is arranged at the top of the climbing ladder assembly, the connecting rod assembly comprises a first connecting rod and a second connecting rod, and the leg supporting assembly comprises leg supporting parts and reinforcing rods; the second connecting rod is hinged with the supporting beam, and two ends of the second connecting rod extend out of two sides of the supporting beam respectively; one end of each side leg is provided with a universal sucker part, and the other end of each side leg is provided with a first edge; the first connecting rod and the leg supporting part are respectively arranged at different sides of the supporting beam, and the second connecting rod, the first edge and the supporting beam form a hinge four-rod mechanism; the reinforcing rod is movably arranged between the supporting beam and the supporting leg part; the invention has the advantages of high strength, good safety, easy folding, convenient maintenance and wide application range.
Description
Technical Field
The invention belongs to the technical field of auxiliary equipment for an airplane, and particularly relates to a general rear cabin working ladder.
Background
The existing working ladders for the rear cabin work of the fixed wing aircraft are all steel ladders and folding ladders, and the aircraft with different models are all required to be provided with rear cabin working ladders with different models, so that the defects of the working ladders are as follows: the working ladder has the advantages of complex structure, inconvenient installation and disassembly, increased workload of workers, huge ladder body volume, heavy weight, easy corrosion and difficult movement; in order to adapt to different types of aircrafts, the rear cabin working ladder is various and huge in number, so that great inconvenience is brought to transportation and management of the working ladder.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the general rear cabin working ladder which has high strength, good safety, easy folding and convenient maintenance and is suitable for fixed wing aircraft of different types.
In order to achieve the above object, the present invention adopts the following solutions: a general rear cabin working ladder comprises a climbing ladder component, an overhanging ladder component, a leg supporting component and a connecting rod component.
The climbing ladder assembly comprises a support beam and a first pedal, the outward extending ladder assembly comprises side legs and a second pedal, the outward extending ladder assembly is arranged at the top of the climbing ladder assembly, the connecting rod assembly comprises a first connecting rod and a second connecting rod, and the leg supporting assembly comprises a leg supporting part and a reinforcing rod.
The second connecting rod is hinged with the supporting beam, and two ends of the second connecting rod extend out of two sides of the supporting beam respectively; one end of each side leg is provided with a universal sucker part, and the other end of each side leg is provided with a first edge; one end of the first edge is hinged with the upper end of the supporting beam, one end of the second connecting rod is fixedly connected with the supporting leg part, and two ends of the first connecting rod are respectively hinged with the other end of the first edge and the other end of the second connecting rod.
The first connecting rod and the supporting leg part are respectively arranged at different sides of the supporting beam, and the second connecting rod, the first edge and the supporting beam form a hinge four-bar mechanism; the reinforcing rod is movably arranged between the supporting beam and the supporting leg part.
Further, a U-shaped groove part is formed in the surface, close to the first pedal, of the support beam, and the end part of the first pedal is fixed in the U-shaped groove part in a riveting mode.
Further, the extension ladder assembly further comprises a handle assembly comprising a handle portion and a securing member, the handle portion being foldably connected to the side leg by the securing member.
Further, the fixing piece is provided with a fixing groove and a folding groove which are communicated with each other, the bottom of the handle part is provided with a sliding shaft, and the sliding shaft is used for sliding in the fixing groove and the folding groove so as to enable the handle part to be supported and fixed on the side legs or enable the handle part to be folded above the second pedal.
Further, the end part of the support beam, which is far away from the outer extension ladder assembly, is provided with a zigzag rubber anti-skid pad.
Further, the end of the leg portion, which is far away from the second connecting rod, is provided with a directional wheel for transportation.
Further, the two ends of the reinforcing rod are respectively fixed with the supporting beam and the supporting leg part, and the reinforcing rod comprises a first reinforcing supporting rod and a second reinforcing supporting rod which are connected in a hinged mode.
Further, the climbing ladder assembly, the extension ladder assembly, the leg supporting assembly, the connecting rod assembly and the handle assembly are all made of aluminum alloy.
Further, the surfaces of the climbing ladder assembly, the outward extending ladder assembly, the leg supporting assembly, the connecting rod assembly and the handle assembly are all covered with anti-corrosion coatings.
Further, the surfaces of the first pedal and the second pedal are provided with anti-skid patterns for skid prevention.
The invention has the advantages that the structure is simple, the reliability is high, the quick disassembly and installation can be realized, and the convenience of maintenance is improved; the climbing ladder assembly, the outward extending ladder assembly, the leg supporting assembly, the connecting rod assembly and the handle assembly are formed by one-step processing and die sinking of aluminum profiles, and the climbing ladder assembly, the outward extending ladder assembly, the leg supporting assembly, the connecting rod assembly and the handle assembly are light in weight, high in strength, strong in corrosion resistance and high in safety; the second connecting rod, the first edge and the supporting beam form a hinge four-rod mechanism, so that the universal rear cabin working ladder has foldability, the climbing ladder component, the overhanging ladder component, the leg supporting component and the connecting rod component are in a coordinated working relationship, are mutually supported and fixed, can be folded and unfolded quickly, works firmly and is convenient to transport; the four-bar mechanism of the hinge is adjusted so that the invention is suitable for fixed wing aircrafts of different types, meets the maintenance work requirements of the rear cabins of fixed wing aircrafts of various types, and has strong universality, strong practicability and cost saving.
Drawings
Fig. 1 is a schematic structural view of a first view angle of the present invention.
Fig. 2 is a schematic structural diagram of a second view angle of the present invention.
Fig. 3 is a schematic structural view of a third view of the present invention.
Figure 4 is a partial structural exploded view of the outer ramp assembly of the present invention.
FIG. 5 is a schematic view of the connection structure of the handle assembly according to the present invention.
In the accompanying drawings:
11. a support beam; 11a, U-shaped groove parts; 11b, rubber anti-slip pad; 12. a first pedal; 21. a side leg; 21a, a first edge; 22. a second pedal; 23. a universal sucker part; 24. a handle portion; 24a, a sliding shaft; 25. a fixing member; 25a, a fixing groove; 25b, folding grooves; 31. a leg support; 32a, a first reinforcing strut; 32b, a second reinforcing strut; 33. a directional wheel; 41. a first connecting rod; 42. and a second connecting rod.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
for the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a universal rear cabin working ladder comprising a climbing ladder assembly, an overhanging ladder assembly, a leg support assembly and a connecting rod assembly; the invention has simple structure and high reliability.
The climbing ladder assembly comprises a support beam 11 and a first pedal 12, the extension ladder assembly comprises side legs 21 and a second pedal 22, the extension ladder assembly is arranged at the top of the climbing ladder assembly, the connecting rod assembly comprises a first connecting rod 41 and a second connecting rod 42, and the leg supporting assembly comprises a leg supporting portion 31 and a reinforcing rod.
The second connecting rod 42 is hinged with the supporting beam 11, and two ends of the second connecting rod 42 respectively extend out of two sides of the supporting beam 11; one end of the side leg 21 is provided with a universal sucker part 23, and the other end of the side leg 21 is provided with a first edge 21a; one end of the first edge 21a is hinged to the upper end of the supporting beam 11, one end of the second connecting rod 42 is fixedly connected with the supporting leg 31, and two ends of the first connecting rod 41 are respectively hinged to the other end of the first edge 21a and the other end of the second connecting rod 42; the invention can realize quick disassembly and assembly, and improves the convenience of maintenance.
The first connecting rod 41 and the supporting leg 31 are respectively arranged at different sides of the supporting beam 11, and the second connecting rod 42, the first connecting rod 41, the first edge 21a and the supporting beam 11 form a hinge four-bar mechanism; the reinforcing rod is movably arranged between the supporting beam 11 and the supporting leg part 31; the general rear cabin working ladder provided by the invention has the advantages that the folding performance is realized, the climbing ladder component, the overhanging ladder component, the leg supporting component and the connecting rod component are in a coordinated working relationship, and are mutually supported and fixed, so that the rapid folding and unfolding can be realized; the reinforcing rod is bent during folding, the bottom of the supporting leg part 31 is close to the supporting beam 11 to be folded, the supporting leg part 31 is fixedly connected with the second connecting rod 42, the end part of the second connecting rod 42 hinged with the first connecting rod 41 rotates towards the top of the supporting beam 11, the hinge four-rod mechanism moves, the first connecting rod 41 moves upwards, and the end part of the side leg 21 provided with the universal sucker part 23 is driven to overturn downwards so as to further drive the outer extension ladder assembly to be folded on the climbing ladder assembly, so that the rapid folding of the invention is realized; when the ladder is unfolded, the reinforcing rods are unfolded, the supporting leg parts 31 are far away from the supporting beam 11, the supporting leg parts 31 are fixedly connected with the second connecting rods 42, the hinged end parts of the second connecting rods 42 and the first connecting rods 41 rotate towards the bottom of the supporting beam 11, the hinge four-rod mechanism moves, the first connecting rods 41 move downwards, and the outward extending ladder assembly is driven to be unfolded and fixed on the climbing ladder assembly; through adjusting the contained angle of supporting leg portion 31 and supporting beam 11, can adjust the height of universal sucking disc portion 23 to realize satisfying the fixed wing aircraft rear deck maintenance work needs of multiple model, the commonality is strong, the practicality is strong, practice thrift the cost.
In this embodiment, the surface of the support beam 11 near the first pedal 12 is provided with a U-shaped groove 11a, and the end of the first pedal 12 is fixed in the U-shaped groove 11a in a riveting manner, so that the structure is stable.
In this embodiment, the extension ladder assembly further includes a handle assembly, the handle assembly includes a handle portion 24 and a fixing member 25, and the handle portion 24 is connected to the side leg 21 in a foldable manner by the fixing member 25; and the use safety is improved.
In this embodiment, the fixing member 25 is provided with a fixing groove 25a and a folding groove 25b which are mutually communicated, the bottom of the handle portion 24 is provided with a sliding shaft 24a, and the sliding shaft 24a is used for sliding in the fixing groove 25a and the folding groove 25b so as to enable the handle portion 24 to be supported and fixed on the side leg 21 or enable the handle portion 24 to be folded above the second pedal 22; the ends of the fixing groove 25a and the folding groove 25b, which are opposite, are closed, when in use, the handle part 24 folded above the second pedal 22 is unfolded, and then the handle part 24 is slid to enable the sliding shaft 24a to be positioned in the fixing groove 25a, so that the handle part 24 can be fixed; when folding, the handle portion 24 is slid so that the slide shaft 24a is positioned in the folding groove 25b, and the groove wall of the folding groove 25b on the side close to the second pedal 22 has an opening, and the handle portion 24 is folded so that the handle portion 24 is folded over the second pedal 22 through the opening of the groove wall.
In this embodiment, the end of the support beam 11 away from the outer ladder assembly is provided with a zigzag rubber anti-slip pad 11b; the supporting stability of the working ladder is improved, and the use safety is improved.
In this embodiment, the end of the leg 31 remote from the second connecting rod 42 is provided with a directional wheel 33 for transportation; convenient transportation and labor saving.
In this embodiment, the two ends of the reinforcing rod are fixed to the supporting beam 11 and the supporting leg 31, and the reinforcing rod includes a first reinforcing strut 32a and a second reinforcing strut 32b that are hinged, and the hinge portion between the first reinforcing strut 32a and the second reinforcing strut 32b can move in a direction approaching the second connecting rod 42 to change the included angle between the supporting leg 31 and the supporting beam 11.
In this embodiment, the climbing ladder assembly, the extension ladder assembly, the leg supporting assembly, the connecting rod assembly, and the handle assembly are all made of aluminum alloy; the climbing ladder assembly, the outward extending ladder assembly, the leg supporting assembly, the connecting rod assembly and the handle assembly are formed by one-step processing and die sinking of aluminum profiles, and the climbing ladder is light in weight, high in strength, strong in corrosion resistance and high in safety.
In the embodiment, the surfaces of the climbing ladder assembly, the overhanging ladder assembly, the leg supporting assembly, the connecting rod assembly and the handle assembly are all covered with an anti-corrosion coating; the corrosion resistance of the present invention is increased.
In this embodiment, the surfaces of the first pedal 12 and the second pedal 22 are provided with anti-skid patterns for preventing skid, so as to improve the use safety.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A general rear cabin working ladder is characterized in that: comprises a climbing ladder component, an overhanging ladder component, a leg supporting component and a connecting rod component;
the climbing ladder assembly comprises a supporting beam (11) and a first pedal (12), the outward extending ladder assembly comprises side legs (21) and a second pedal (22), the outward extending ladder assembly is arranged at the top of the climbing ladder assembly, the connecting rod assembly comprises a first connecting rod (41) and a second connecting rod (42), and the leg supporting assembly comprises leg supporting parts (31) and reinforcing rods;
the second connecting rod (42) is hinged with the supporting beam (11), and two ends of the second connecting rod (42) extend out of two sides of the supporting beam (11) respectively; one end of each side leg (21) is provided with a universal sucker part (23), and the other end of each side leg (21) is provided with a first edge (21 a); one end of the first edge (21 a) is hinged with the upper end of the supporting beam (11), one end of the second connecting rod (42) is fixedly connected with the supporting leg part (31), and two ends of the first connecting rod (41) are respectively hinged with the other end of the first edge (21 a) and the other end of the second connecting rod (42);
the first connecting rod (41) and the supporting leg (31) are respectively arranged on different sides of the supporting beam (11), and the second connecting rod (42), the first connecting rod (41), the first edge (21 a) and the supporting beam (11) form a hinge four-bar mechanism; the reinforcing rod is movably arranged between the supporting beam (11) and the supporting leg part (31).
2. The universal rear pod ladder of claim 1, wherein: the support beam (11) is close to the surface of the first pedal (12) and is provided with a U-shaped groove (11 a), and the end part of the first pedal (12) is fixed in the U-shaped groove (11 a) in a riveting mode.
3. The universal rear pod ladder of claim 1, wherein: the outer ladder assembly further comprises a handle assembly, the handle assembly comprises a handle portion (24) and a fixing piece (25), and the handle portion (24) is connected to the side leg (21) in a foldable mode through the fixing piece (25).
4. A universal rear hatch operating ladder according to claim 3, characterized in that: the fixing piece (25) is provided with a fixing groove (25 a) and a folding groove (25 b) which are communicated with each other, the bottom of the handle part (24) is provided with a sliding shaft (24 a), and the sliding shaft (24 a) is used for sliding in the fixing groove (25 a) and the folding groove (25 b) so that the handle part (24) is supported and fixed on the side leg (21) or so that the handle part (24) is folded above the second pedal (22).
5. The universal rear pod ladder of claim 1, wherein: the end part of the supporting beam (11) far away from the outer ladder assembly is provided with a zigzag rubber anti-slip pad (11 b).
6. The universal rear pod ladder of claim 1, wherein: the end of the supporting leg part (31) far away from the second connecting rod (42) is provided with a directional wheel (33) for transportation.
7. The universal rear pod ladder of claim 1, wherein: the two ends of the reinforcing rod are respectively fixed with the supporting beam (11) and the supporting leg part (31), and the reinforcing rod comprises a first reinforcing supporting rod (32 a) and a second reinforcing supporting rod (32 b) which are connected in a hinged mode.
8. A universal rear hatch operating ladder according to claim 3, characterized in that: the climbing ladder assembly, the outward extending ladder assembly, the supporting leg assembly, the connecting rod assembly and the handle assembly are all made of aluminum alloy.
9. The universal rear pod ladder of claim 8, wherein: the surfaces of the climbing ladder component, the overhanging ladder component, the leg supporting component, the connecting rod component and the handle component are all covered with anti-corrosion coatings.
10. The universal rear pod ladder of claim 1, wherein: the surfaces of the first pedal (12) and the second pedal (22) are provided with anti-skid patterns for skid prevention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565634.XA CN108528752B (en) | 2018-06-04 | 2018-06-04 | General rear cabin working ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565634.XA CN108528752B (en) | 2018-06-04 | 2018-06-04 | General rear cabin working ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108528752A CN108528752A (en) | 2018-09-14 |
| CN108528752B true CN108528752B (en) | 2023-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810565634.XA Active CN108528752B (en) | 2018-06-04 | 2018-06-04 | General rear cabin working ladder |
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|---|---|
| CN (1) | CN108528752B (en) |
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| CN208544438U (en) * | 2018-06-04 | 2019-02-26 | 四川航泰航空装备有限公司 | A kind of general rear deck working stand |
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| 基于ANSYS的多用途折叠梯的计算机辅助设计.《数字技术与应用》.2016,全文. * |
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| CN108528752A (en) | 2018-09-14 |
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