Working ladder for aircraft maintenance
By using the sliding lock locking of the side frame and the main rod and the auxiliary pole in the aircraft maintenance ladder, the stability problem of the maintenance ladder when operating at a high place, and realizing the stable support and applicability in complex environments.
Patent Information
- Application Number
- CN202420255896.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-02
AI Technical Summary
Existing maintenance ladders lack stability when operating at high places, prone to side falls, and it is difficult to provide stable and convenient working ladders under complex terrain and specific environments (such as helicopter blade inspection).
Use the side frames on both sides to cooperate to support the stable support of the working ladder through the tilting side of the rotating side frame to the side. At the same time, through the sliding lock of the convex block of the main rod and the sub -rod, adjust the position of the main pole to adapt to the complex environment.
Improve the stability and applicability of the working ladder, provide stable support under complex working conditions, and enhance the safety of staff.
Smart Images
Figure CN222414727U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of maintenance ladders, in particular to a working ladder for aircraft maintenance. Background Art
[0002] When the maintenance ladder is in use, the two legs lack stability for high-altitude operations. When working in complex conditions at high altitudes, when the range of movement is large, it is easy to fall sideways, affecting the safety of the staff. When equipped with different auxiliary support mechanisms, due to the high requirements for ground activity space, sufficient space is needed to stretch the support mechanism, which is not conducive to working on complex terrain. Especially when several blades of a helicopter need to be lifted at the same time for inspection, there is a lack of a practical work ladder that is both stable and convenient. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a work ladder for aircraft maintenance in view of the above-mentioned technical deficiencies. The side frame groups on both sides cooperate with each other, and the side frame groups are rotated to tilt to the side and then support is deployed, thereby achieving stable support for the work ladder and improving the stability of the work ladder. Through the sliding locking cooperation of the protrusions and the slide grooves of the main rod and the auxiliary rod, the range of different distances between the main rod and the low ladder can be adjusted on the basis of rotating the main rod, and the function of adjusting the position of the main rod in complex environmental conditions is realized, thereby improving the applicability of the work ladder in complex working conditions.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: it includes low ladders symmetrically arranged on both sides; and high ladders slidably arranged with each low ladder; a support is connected between the two high ladders; a pedal assembly is arranged on the upper side of one of the high ladders; side frame groups are rotatably connected to the two sides of the low ladder; the side frame group includes a main rod and a secondary rod; one end of the main rod and the secondary rod are connected to the side shaft of the low ladder through a connecting block; a protrusion for cooperating with the secondary rod is arranged in the middle of the main rod; and a sliding groove for cooperating with the protrusion to limit the position is arranged on the secondary rod.
[0005] To further optimize the technical solution, a fixed component is provided at the sliding connection position between the high ladder and the low ladder.
[0006] To further optimize the technical solution, the slide groove includes a main groove arranged along the length of the entire auxiliary rod and an auxiliary groove extending to one side from the main groove; a plurality of auxiliary grooves are arranged at intervals on the main groove; when the protrusion is located in the auxiliary groove, the positions of the main rod and the auxiliary rod are fixed.
[0007] To further optimize the technical solution, the support member is composed of at least two connecting rods; the connecting rod located at the connection position with the high ladder is connected to the high ladder rotation shaft; and the rotation shafts between two adjacent connecting rods are connected.
[0008] To further optimize the technical solution, the pedal assembly includes a pedal connected to a rotating shaft of a high ladder on one side and a handrail fixed to the high ladder on this side; the other side of the pedal is placed on the high ladder on the other side.
[0009] Compared with the prior art, the utility model has the following advantages: 1. The side frame groups on both sides cooperate, and this structure advantageously ensures that after the side frame groups are rotated to tilt to the side, the support is unfolded, thereby achieving stable support for the work ladder, thereby improving the stability of the work ladder; 2. The sliding locking cooperation of the protrusions of the main rod and the auxiliary rod and the sliding groove, this structure advantageously ensures that the position of the main rod can be adjusted in complex environmental conditions, thereby improving the applicability of the work ladder in complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 The figure is a schematic diagram of the overall structure of a work ladder for aircraft maintenance.
[0011] Figure 2 The present invention is a schematic diagram of the structure of the connecting rod part of a work ladder for aircraft maintenance.
[0012] Figure 3 The present invention is a schematic diagram of the structure of the main rod and auxiliary rod of a work ladder for aircraft maintenance.
[0013] Figure 4 The present invention is a schematic diagram of the connection position structure of a main rod and a lower ladder of a work ladder for aircraft maintenance through a connecting block.
[0014] In the figure: 1, low ladder; 2, high ladder; 3, main rod; 4, auxiliary rod; 5, bump; 6, slide groove; 7, main groove; 8, auxiliary groove; 9, connecting rod; 10, pedal; 11, handrail. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0016] Specific implementation method: Combination Figure 1-4As shown, it includes low ladders 1 symmetrically arranged on both sides; and high ladders 2 slidably arranged with each low ladder 1; a support is connected between the two high ladders 2; a pedal assembly is arranged on the upper side of one of the high ladders 2; the two sides of the low ladder 1 are rotatably connected with side frame groups; the side frame group includes a main rod 3 and a secondary rod 4; one end of the main rod 3 and the secondary rod 4 are connected to the side shaft of the low ladder 1 through a connecting block; a protrusion 5 for cooperating with the secondary rod 4 is arranged in the middle of the main rod 3; a sliding groove 6 for cooperating with the protrusion 5 and limiting the position is arranged on the secondary rod 4; a fixing assembly is arranged at the sliding connection position between the high ladder 2 and the low ladder 1; the fixing assembly is a fixing bolt inserted laterally at the sliding connection position, which is used to After adjusting the high ladder 2 and the low ladder 1 to suitable positions, the positional relationship between the two is fixed and locked. The slide groove 6 includes a main groove 7 arranged along the length of the overall auxiliary rod 4 and an auxiliary groove 8 extending to one side from the main groove 7; a plurality of auxiliary grooves 8 are arranged at intervals on the main groove 7; when the protrusion 5 is located in the auxiliary groove 8, the positions of the main rod 3 and the auxiliary rod 4 are fixed; the support member is composed of at least two connecting rods 9; the connecting rod 9 located at the connection position with the high ladder 2 is connected to the rotating shaft of the high ladder 2; the rotating shafts of two adjacent connecting rods 9 are connected; the pedal assembly includes a pedal 10 connected to the rotating shaft of the high ladder 2 on one side and a handrail 11 fixed to the high ladder 2 on this side; the other side of the pedal 10 is placed on the high ladder 2 on the other side.
[0017] Combination Figure 1-4 As shown, when in use, the working ladder is placed in a suitable position, the sliding connection position between the high ladder 2 and the low ladder 1 is locked in position by a fixing bolt, and then the working ladder is placed. When placing, the main rod 3 and the auxiliary rod 4 on both sides of each low ladder 1 are rotated circumferentially along the connecting block and the low ladder 1. After rotating to a suitable position, the protrusion 5 on the main rod 3 is slid along the main groove 7 of the slide groove 6 to the corresponding auxiliary groove 8 position, and the protrusion 5 is slid into the auxiliary groove 8 to fix the position of the low ladder 1.
[0018] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A working ladder for aircraft maintenance, characterized in that: The invention comprises low ladders (1) symmetrically arranged on both sides; and high ladders (2) slidably arranged with each low ladder (1); a support member is connected between the two high ladders (2); a pedal assembly is arranged on the upper side of one of the high ladders (2); side frame groups are rotatably connected to the two sides of the low ladder (1); the side frame group comprises a main rod (3) and a secondary rod (4); one end of the main rod (3) and the secondary rod (4) are connected to the side shaft of the low ladder (1) through a connecting block; a protrusion (5) for cooperating with the secondary rod (4) is arranged in the middle of the main rod (3); and a sliding groove (6) for cooperating with the protrusion (5) for limiting is arranged on the secondary rod (4).
2. The aircraft maintenance working ladder according to claim 1, characterized in that: A fixing component is provided at the sliding connection position between the high ladder (2) and the low ladder (1).
3. The aircraft maintenance working ladder according to claim 1, characterized in that: The slide groove (6) comprises a main groove (7) arranged along the length of the integral auxiliary rod (4) and an auxiliary groove (8) extending from the main groove (7) to one side; a plurality of auxiliary grooves (8) are arranged at intervals on the main groove (7); when the protrusion (5) is located in the auxiliary groove (8), the positions of the main rod (3) and the auxiliary rod (4) are fixed.
4. The aircraft maintenance working ladder according to claim 1, characterized in that: The support member is composed of at least two connecting rods (9); the connecting rod (9) located at the connection position with the high ladder (2) is connected to the rotating shaft of the high ladder (2); and the rotating shafts between two adjacent connecting rods (9) are connected.
5. The aircraft maintenance working ladder according to claim 1, characterized in that: The pedal assembly comprises a pedal (10) connected to a rotating shaft of a high ladder (2) on one side and a handrail (11) fixedly arranged on the high ladder (2) on the side; the other side of the pedal (10) rests on the high ladder (2) on the other side.