Passenger ladder maintenance auxiliary mechanism

Abstract

The utility model relates to the technical field of passenger ladders, and discloses a passenger ladder maintenance auxiliary mechanism which comprises a boarding ladder and a base, an auxiliary platform is arranged on the boarding ladder, a limiting seat is fixedly installed at the bottom of the auxiliary platform, positioning grooves are symmetrically formed in the two sides of the limiting seat, a mounting seat is fixedly arranged at the top of the base, and the mounting seat is fixedly connected with the auxiliary platform. The mounting base is located under the limiting base, and the mounting base and the limiting base are each of a concave structure. When a lifting system needs to be maintained, the airstairs are lifted, after the airstairs are lifted, the supporting plate is rotated, and when the positioning blocks installed on the supporting plate rotate to one side of the positioning groove, the positioning blocks can be pushed into the positioning groove under the action of the springs, so that the positioning effect on the supporting plate is achieved; by arranging the supporting plate, the supporting plate plays an auxiliary role in stably supporting the airstairs, the airstairs are prevented from falling, and after the airstairs are stably supported, the lifting system can be maintained.

Description

Technical Field

[0001] This utility model belongs to the field of passenger elevator technology, specifically, it relates to a passenger elevator maintenance auxiliary mechanism. Background Technology

[0002] Passenger boarding stairs are specialized airport equipment used for passengers to board and disembark aircraft. They are an indispensable part of airport ground services, providing passengers with a convenient passageway when jet bridges are unavailable or nonexistent. These devices are typically equipped with wheels for easy movement, and feature a retractable boarding ladder on top to ensure passengers can board and disembark safely and smoothly.

[0003] Passenger boarding stairs come in various types, mainly differentiated by usage requirements and aircraft models. Among them, Automated Guided Stairs (ADSs) are equipped with automatic lifting systems, are easy to operate, and are widely used in large airports. With long-term use, ADSs require regular maintenance of the automatic lifting systems by staff to ensure normal operation and effectively reduce the probability of malfunctions during passenger boarding and alighting. Currently, maintenance and repair of the ADS systems typically require raising the boarding stairs. However, when raised, the lack of stable support for the boarding stairs poses a risk of them collapsing.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] To address the problem of the lack of stable support for the boarding stairs after they are raised, which poses a risk of them falling, the basic concept of the technical solution adopted in this utility model is as follows:

[0006] A passenger boarding stairs maintenance auxiliary mechanism includes a boarding stairs and a base. An auxiliary platform is provided on the boarding stairs. A limiting seat is fixedly installed at the bottom of the auxiliary platform. The limiting seat has symmetrically arranged positioning grooves on both sides. An mounting seat is fixedly installed on the top of the base. The mounting seat is located directly below the limiting seat. Both the mounting seat and the limiting seat are concave structures. A support plate is rotatably installed on the mounting seat. The support plate has opposing movable grooves on both sides. A wedge-shaped positioning block is slidably arranged on the inner wall of the movable groove. The positioning block is adapted to the positioning groove. A spring is installed on one inner wall of the movable groove. One end of the spring is connected to the outer wall of one side of the positioning block.

[0007] In a preferred embodiment of this utility model, the boarding ladder is installed on a base, and symmetrically arranged hydraulic cylinders are installed on the top of the base, with the piston rods of the hydraulic cylinders connected to the bottom of the boarding ladder.

[0008] In a preferred embodiment of this utility model, a symmetrically arranged support seat is fixedly installed on the top of the base, and the bottom end of the hydraulic cylinder is installed on the support seat.

[0009] In a preferred embodiment of this utility model, the distance between the two hydraulic cylinders is greater than the distance between the two positioning blocks.

[0010] In a preferred embodiment of this utility model, a mounting shaft is rotatably mounted on the mounting base, and the bottom of the support plate is fixedly connected to the outer wall of the mounting shaft.

[0011] In a preferred embodiment of this utility model, the support plate has symmetrically arranged movable openings on one side, and a connecting block is slidably arranged on the inner wall of the movable opening. The connecting block is fixedly connected to the outer wall of one side of the positioning block.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] In this invention, when maintenance of the lifting system is required, the boarding ladder is raised. After the boarding ladder is raised, the support plate is rotated. When the positioning block installed on the support plate rotates to one side of the positioning groove, the spring can push the positioning block into the positioning groove, thereby achieving the positioning function of the support plate. This allows the support plate to play a stable supporting role for the boarding ladder, preventing the boarding ladder from falling. Once the boarding ladder is stably supported, the lifting system can be maintained.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the base cross-sectional structure of a passenger elevator maintenance auxiliary mechanism according to the present invention;

[0017] Figure 2 This is a partial side view of the boarding stairs of a passenger boarding stairs maintenance auxiliary mechanism according to the present invention;

[0018] Figure 3 This is a schematic diagram of the limiting seat structure of a passenger elevator maintenance auxiliary mechanism according to the present invention;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the support plate of a passenger elevator maintenance auxiliary mechanism according to the present invention.

[0020] In the diagram: 1. Boarding ladder; 2. Base; 3. Mounting seat; 4. Support seat; 5. Support plate; 6. Hydraulic cylinder; 7. Limit seat; 8. Auxiliary platform; 9. Positioning groove; 10. Mounting shaft; 11. Movable groove; 12. Positioning block; 13. Spring; 14. Movable opening; 15. Connecting block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0022] like Figures 1 to 4 As shown

[0023] A passenger boarding stairs maintenance auxiliary mechanism includes a boarding stairs 1 and a base 2. An auxiliary platform 8 is provided on the boarding stairs 1, and a limit seat 7 is fixedly installed at the bottom of the auxiliary platform 8. The limit seat 7 has symmetrically arranged positioning grooves 9 on both sides. A mounting seat 3 is fixedly installed at the top of the base 2, and the mounting seat 3 is located directly below the limit seat 7. Both the mounting seat 3 and the limit seat 7 are concave structures. A support plate 5 is rotatably installed on the mounting seat 3, and a mounting shaft 10 is rotatably installed on the mounting seat 3. The bottom of the support plate 5 is fixedly connected to the outer wall of the mounting shaft 10. Opposite movable grooves 11 are provided on both sides of the support plate 5. A wedge-shaped positioning block 12 is slidably arranged on the inner wall of the movable groove 11. The positioning block 12 is aligned with the base 2. The positioning slot 9 is matched, and a spring 13 is installed on the inner wall of one side of the movable slot 11. One end of the spring 13 is connected to the outer wall of one side of the positioning block 12. When the lifting system needs to be maintained, the boarding ladder 1 is raised. After the boarding ladder 1 is raised, the support plate 5 is rotated through the set mounting shaft 10. When the positioning block 12 installed on the support plate 5 rotates to the side of the positioning slot 9, the positioning block 12 can be pushed into the positioning slot 9 under the action of the spring 13, so as to realize the positioning function of the support plate 5. This makes the support plate 5 play a stable supporting role for the boarding ladder 1 and prevent the boarding ladder 1 from falling. After the boarding ladder 1 is stably supported, the lifting system can be maintained.

[0024] In a specific embodiment, the boarding ladder 1 is installed on the base 2. The top of the base 2 is equipped with symmetrically arranged hydraulic cylinders 6. The piston rod of the hydraulic cylinder 6 is connected to the bottom of the boarding ladder 1. The top of the base 2 is fixedly equipped with symmetrically arranged support seats 4. The bottom end of the hydraulic cylinder 6 is installed on the support seat 4. The distance between the two hydraulic cylinders 6 is greater than the distance between the two positioning blocks 12. The support plate 5 has symmetrically arranged movable openings 14 on one side. The inner wall of the movable opening 14 is slidably provided with connecting blocks 15. The connecting blocks 15 are fixedly connected to the outer wall of one side of the positioning block 12. After the maintenance work is completed, the connecting blocks 15 are pushed to move, and the connecting blocks 15 drive the positioning blocks 12 to move, so that the positioning blocks 12 are moved out of the positioning groove 9. Then the support plate 5 is rotated to reset the support plate 5 to a flat state.

[0025] The implementation principle of the passenger boarding elevator maintenance auxiliary mechanism in this embodiment is as follows: When maintenance of the lifting system is required, the boarding elevator 1 is raised. After the boarding elevator 1 is raised, the support plate 5 is rotated through the mounting shaft 10. When the positioning block 12 installed on the support plate 5 rotates to one side of the positioning groove 9, the positioning block 12 can be pushed into the positioning groove 9 under the action of the spring 13, thereby achieving the positioning function of the support plate 5. This allows the support plate 5 to play a stable supporting role for the boarding elevator 1. After the boarding elevator 1 is stably supported, the lifting system can be maintained. After the maintenance work is completed, the connecting block 15 is pushed to move. The connecting block 15 drives the positioning block 12 to move, so that the positioning block 12 moves out of the positioning groove 9. Then, the support plate 5 is rotated to reset the support plate 5 to the flat state.

Claims

1. A passenger boarding stairs maintenance auxiliary mechanism, comprising a boarding stairs (1) and a base (2), characterized in that, An auxiliary platform (8) is provided on the boarding ladder (1). A limiting seat (7) is fixedly installed at the bottom of the auxiliary platform (8). A symmetrically arranged positioning groove (9) is provided on both sides of the limiting seat (7). An installation seat (3) is fixedly installed on the top of the base (2). The installation seat (3) is located directly below the limiting seat (7). Both the installation seat (3) and the limiting seat (7) are concave structures. A support plate (5) is rotatably installed on the installation seat (3). A pair of movable grooves (11) are provided on both sides of the support plate (5). A wedge-shaped positioning block (12) is slidably arranged on the inner wall of the movable groove (11). The positioning block (12) is adapted to the positioning groove (9). A spring (13) is installed on one side of the inner wall of the movable groove (11). One end of the spring (13) is connected to the outer wall of one side of the positioning block (12).

2. The passenger boarding bridge maintenance auxiliary mechanism according to claim 1, characterized in that, The boarding ladder (1) is installed on the base (2), and symmetrically arranged hydraulic cylinders (6) are installed on the top of the base (2). The piston rod of the hydraulic cylinder (6) is connected to the bottom of the boarding ladder (1).

3. The passenger boarding bridge maintenance auxiliary mechanism according to claim 2, characterized in that, The base (2) is fixedly installed with symmetrically arranged support seats (4) on its top, and the bottom end of the hydraulic cylinder (6) is installed on the support seats (4).

4. The passenger boarding bridge maintenance auxiliary mechanism according to claim 2, characterized in that, The distance between the two hydraulic cylinders (6) is greater than the distance between the two positioning blocks (12).

5. The passenger boarding stairs maintenance auxiliary mechanism according to claim 1, characterized in that, The mounting base (3) is rotatably mounted with a mounting shaft (10), and the bottom of the support plate (5) is fixedly connected to the outer wall of the mounting shaft (10).

6. The passenger boarding stairs maintenance auxiliary mechanism according to claim 1, characterized in that, The support plate (5) has symmetrically arranged movable openings (14) on one side. A connecting block (15) is slidably arranged on the inner wall of the movable opening (14). The connecting block (15) is fixedly connected to the outer wall of the positioning block (12) on one side.

Images