Sliding ceiling of passenger ladder

Abstract

The utility model relates to the technical field of airport ground equipment, in particular to a sliding ceiling of a passenger ladder, which comprises a telescopic awning, a left bearing cross beam, a right bearing cross beam, a left armrest limiting combination, a right armrest limiting combination, a left awning fixing guide rail bracket, a right awning fixing guide rail bracket, an auxiliary support locking weldment and an electric control component, the sliding ceiling is additionally arranged in front of the platform of the passenger boarding ladder, so that the windproof and rainproof requirements of the top and the two sides of the passenger ladder platform entering and exiting a cabin door can be met, the use requirements of passengers in front of the cabin door can be met, meanwhile, the width of the ceiling does not exceed the width of a whole vehicle, the front-back sliding stroke is large, the weight is low, use difficulty is avoided, and the cost is controllable. Besides, the shape of the ladder body and the shape of the awning are matched with each other, the overall appearance is coordinated, in addition, the sliding ceiling can adopt two operation modes of electric driving and manual driving, and manual locking is needed after the sliding ceiling is driven, so that the use standard requirements of civil aviation equipment can be met.

Description

Technical Field

[0001] This utility model relates to the field of airport ground equipment technology, and in particular to a sliding canopy for passenger boarding stairs. Background Technology

[0002] To ensure that passengers can get on and off the boarding stairs while being protected from rain, passenger boarding stairs are usually equipped with semi-enclosed canopies, and some are equipped with fully enclosed canopies to meet the requirements of lateral wind protection. Since they connect to the aircraft cabin door, it is necessary to consider the opening of the cabin door. However, the platform canopy only extends forward in part and does not fully cover the cabin door. Therefore, a sliding canopy that can cover the cabin door is needed to meet the needs of sheltering passengers from wind and rain, without affecting the normal opening and closing of the cabin door, and also to ensure the normal operation of the vehicle.

[0003] Currently, the main solution is to configure a fully enclosed folding canopy (transplanting the boarding bridge head to the passenger boarding bridge platform). However, folding canopies require a wide platform to fully enclose the cabin door, which increases the width and height of the vehicle. The increased front weight causes the center of gravity to shift forward, increasing driving difficulty. In addition, the price is high. Therefore, a sliding canopy solution needs to be designed to meet all the requirements while keeping costs under control. Utility Model Content

[0004] The purpose of this utility model is to provide a sliding canopy for passenger boarding stairs, which solves the technical problems of the existing fully enclosed boarding bridges being difficult and expensive to use, while semi-enclosed canopies cannot meet the requirements for full coverage.

[0005] To achieve the above objectives, this utility model provides a sliding canopy for a passenger boarding bus, comprising a retractable canopy, a left bearing beam, a right bearing beam, a left handrail limiting assembly, a right handrail limiting assembly, a left canopy fixing guide rail, a right canopy fixing guide rail, auxiliary support locking welds, and an electrical control assembly. The upper layer of the retractable canopy is fixed with the left bearing beam and the right bearing beam, and the lower layer is fixed with the left handrail limiting assembly and the right handrail limiting assembly. The left and right canopy fixing guide rails are respectively fixed on both sides of the retractable canopy and remain parallel to it. The auxiliary support locking welds are respectively fixed on the outer sides of the left and right uprights of the retractable canopy. The electrical control assembly is used to control the automatic extension and retraction of the retractable canopy.

[0006] The retractable awning is made of aluminum profiles processed into arched curved beams, which together with the straight beam awning aluminum profiles form a portal frame structure.

[0007] The front side of the arched curved beam of the door is fixed with an anti-collision rubber strip.

[0008] The electronic control components include a proximity sensor switch and a limit switch. The proximity sensor switch is fixed to the underside of the anti-collision rubber strip in front of the retractable awning, and the limit switch is located outside the retractable awning.

[0009] A low-voltage motor and a follow-rotating sprocket are installed under the left-side canopy fixing guide rail frame. The low-voltage motor outputs power to the drive sprocket through a bearing seat. A closed chain is formed between the drive sprocket and the follow-rotating sprocket. The drive sprocket rotates with the low-voltage motor, driving the chain to rotate.

[0010] Among them, after the retractable awning is installed, the lower limiting plate of the left handrail limiting assembly and the right handrail limiting assembly is designed with densely arranged locking holes in a straight line, and the auxiliary support locking welds on both sides are designed with spring locks.

[0011] To ensure the gap between the auxiliary support locking weld and the limiting plate, a nylon sleeve is installed on the inner side of the auxiliary support locking weld to prevent wear on the limiting plate.

[0012] This utility model discloses a sliding canopy for a passenger boarding stairs. By adding a sliding canopy in front of the passenger boarding stairs' door platform, it meets the wind and rain protection needs of the passenger boarding stairs' entrance and exit points, thus satisfying the usage needs of passengers in front of the doors. Furthermore, the canopy's width does not exceed the width of the entire vehicle, it has a large forward and backward sliding range, is lightweight, easy to use, and cost-effective. In addition, the design of the stairs and the canopy complement each other, resulting in a harmonious overall appearance. Moreover, the sliding canopy can be operated electrically or manually, and it requires manual locking after operation, thus meeting the requirements of civil aviation equipment usage standards. This solves the technical problems of existing fully enclosed boarding stairs being difficult and expensive to use, while semi-enclosed canopies cannot meet the full shielding requirements. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the sliding roof of the passenger boarding stairs according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the connection between the sprocket and the chain in the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram showing the connection between the limit switch and the retractable awning in the first embodiment of this utility model.

[0017] In the diagram: 1-Retractable awning, 2-Left bearing beam, 3-Right bearing beam, 4-Left handrail limit assembly, 5-Right handrail limit assembly, 6-Left awning fixed guide rail frame, 7-Right awning fixed guide rail frame, 8-Auxiliary support locking welded parts, 9-Door curved beam, 10-Straight beam awning, 11-Pressure plate, 12-Awning endurance plate, 13-Transparent plate, 14-Low voltage motor, 15-Drive sprocket, 16-Following sprocket, 17-Chain, 18-Locking hole, 19-Spring lock, 20-Nylon ferrule, 21-Anti-collision rubber strip, 22-Motor proximity sensor switch, 23-Limit limit switch. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] First embodiment:

[0020] Please see Figures 1 to 3 This utility model provides a sliding canopy for a passenger elevator, including a telescopic canopy 1, a left bearing beam 2, a right bearing beam 3, a left handrail limiting assembly 4, a right handrail limiting assembly 5, a left canopy fixing guide rail 6, a right canopy fixing guide rail 7, an auxiliary support locking welded part 8, and an electrical control component. The electrical control component includes a proximity sensor switch 22 and a limit switch 23.

[0021] In this embodiment, by installing a sliding canopy in front of the passenger boarding stairs' door platform, the overhead and side wind and rain protection requirements of the passenger boarding stairs platform at the door entrance can be met, thus satisfying the usage needs of passengers in front of the door. At the same time, the canopy width does not exceed the width of the entire vehicle, has a large front and rear sliding stroke, is lightweight, easy to use, and has controllable costs. In addition, the design of the stairs and the canopy complement each other, resulting in a harmonious overall appearance. Furthermore, the sliding canopy can be operated by both electric and manual means, and it needs to be manually locked after being activated, thus meeting the requirements of civil aviation equipment usage standards. This solves the technical problems of existing fully enclosed jet bridges used in passenger boarding stairs being difficult to use and expensive, while semi-enclosed canopies cannot meet the requirements for full coverage.

[0022] The retractable awning 1 has the left bearing beam 2 and the right bearing beam 3 fixed in the upper layer, and the left handrail limiting assembly 4 and the right handrail limiting assembly 5 fixed in the lower layer. The left awning fixing guide rail 6 and the right awning fixing guide rail 7 are respectively fixed on both sides of the retractable awning 1 and kept parallel to the retractable awning 1. The auxiliary support locking weld 8 is respectively fixed on the outside of the left and right columns of the retractable awning 1. The electronic control component is used to control the automatic extension and retraction of the retractable awning 1. The left awning fixing guide rail 6 and the right awning fixing guide rail 7 are installed and fine-tuned to ensure that they are parallel to the retractable awning 1.

[0023] Secondly, the left bearing beam 2 and the right bearing beam 3 are each equipped with 4 sets of rolling bearings to ensure that the entire telescopic awning 1 moves linearly back and forth within the left awning fixing guide frame 6 and the right awning fixing guide frame 7. At the same time, the left awning fixing guide frame 6 and the right awning fixing guide frame 7 also play a major supporting role for the telescopic awning 1.

[0024] Furthermore, the retractable awning 1 is made of aluminum profiles to form an arc-shaped curved beam 9, which together with the straight beam awning 10 aluminum profiles forms a portal frame structure. The arc-shaped curved beam 9 and the straight beam are connected and fixed by a pressure plate 11 at their joints, and the awning endurance plate 12 is embedded in the frame. The top of the awning endurance plate is dark-colored, and transparent plates 13 are embedded on both the left and right sides. Anti-collision rubber strips 21 are fixed to the front side of the arc-shaped curved beam 9.

[0025] Meanwhile, the approach sensor switch 22 is fixed to the lower side of the anti-collision rubber strip 21 in front of the retractable awning 1, and the end limit switch 23 is set outside the retractable awning 1. The approach sensor switch 22 senses the aircraft cabin surface and door that may be touched and controls the automatic extension action of the retractable awning 1 to stop. When the retractable awning 1 returns to its original position, the end limit switch 23 is sensed and sends an electrical signal to move the vehicle.

[0026] Additionally, a low-voltage motor 14 and a follow-rotating sprocket 16 are installed under the left-side awning fixing guide rail frame 6. The low-voltage motor 14 outputs power to the drive sprocket 15 through a bearing seat. A closed chain 17 is formed between the drive sprocket 15 and the follow-rotating sprocket 16. The drive sprocket 15 rotates with the low-voltage motor 14, driving the chain 17 to rotate. The inner support plates of the left bearing beam 2 and the right bearing beam 3 are fixed to the chain 17. The chain 17 drives the left bearing beam 2 and the right bearing beam 3 to move back and forth. The left bearing beam 2 and the right bearing beam 3 are fixed inside the telescopic awning 1. The chains 17 on both sides drive the telescopic awning 1 to move back and forth through the rotation of the low-voltage motor 14.

[0027] Finally, after the retractable awning 1 is installed, the lower limiting plates of the left handrail limiting assembly 4 and the right handrail limiting assembly 5 are designed with densely arranged locking holes 18 in a straight line. The auxiliary support locking welded parts 8 on both sides are designed with spring locks 19. When working, the locking tongue extends and gets into the locking hole 18 of the limiting plate for locking and fixing. When the vehicle is moving or the machine operation is completed, the spring locks 19 are used to ensure mechanical locking. In order to ensure the gap between the auxiliary support locking welded parts 8 and the limiting plate, a nylon sleeve 20 is installed on the inner side of the auxiliary support locking welded parts 8 to prevent the limiting plate from being worn. The upper layer of the auxiliary support locking welded parts 8 is welded with a handrail tube to facilitate the operator to manually move the retractable awning 1.

[0028] When using the sliding canopy of a passenger boarding bus according to this embodiment, the retractable canopy 1 can be moved by electric drive and manual drive. In electric drive mode, firstly, the low-voltage motor 14 is started, causing the power output from the low-voltage motor 14 to drive the drive sprocket 15 to rotate, thereby rotating the chain 17. This, in turn, causes the left bearing beam 2 and the right bearing beam 3 to move back and forth. The back-and-forth movement of the left bearing beam 2 and the right bearing beam 3 drives the retractable canopy 1 to move back and forth. In manual drive mode, the operator manually moves the canopy through the handrail tube. The retractable awning 1 is moved forward and backward. During the forward and backward movement of the retractable awning 1, the aircraft approach sensor switch 22 senses the aircraft cabin surface and door that may be touched and controls the automatic extension of the retractable awning 1 to stop. When the retractable awning 1 moves to the appropriate position, the locking tongue extends and engages with the locking hole 18 of the limiting plate to lock and fix it. When the vehicle is moving or the aircraft operation is completed, the spring lock 19 is used to ensure mechanical locking. When the retractable awning 1 returns to its original position, the end limit switch 23 is sensed and sends an electrical signal to move the vehicle.

[0029] In summary, by installing a sliding canopy in front of the passenger boarding stairs' door platform, the overhead and side wind and rain protection requirements of the boarding stairs at the door entrance can be met, thus satisfying the usage needs of passengers in front of the door. Furthermore, the canopy's width does not exceed the width of the entire vehicle, it has a large forward and backward sliding range, is lightweight, easy to use, and cost-effective. Additionally, the design of the boarding stairs and the canopy complement each other, resulting in a harmonious overall appearance. Moreover, the sliding canopy can be operated electrically or manually, and it requires manual locking after operation, thus meeting civil aviation equipment usage standards. This solves the technical problems of existing fully enclosed boarding stairs being difficult and expensive to use, while semi-enclosed canopies cannot meet full coverage requirements.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A sliding canopy for a passenger boarding stairs, characterized in that: The device includes a retractable awning, a left bearing beam, a right bearing beam, a left handrail limiting assembly, a right handrail limiting assembly, a left awning fixing guide rail, a right awning fixing guide rail, auxiliary support locking welds, and an electrical control assembly. The upper layer of the retractable awning is fixed with the left and right bearing beams, and the lower layer is fixed with the left and right handrail limiting assemblies. The left and right awning fixing guide rails are respectively fixed on both sides of the retractable awning and remain parallel to it. The auxiliary support locking welds are respectively fixed on the outer sides of the left and right uprights of the retractable awning. The electrical control assembly is used to control the automatic extension and retraction of the retractable awning.

2. The sliding canopy of the passenger boarding stairs as described in claim 1, characterized in that: The retractable awning is made of aluminum profiles processed into arched curved beams, which together with the straight beam awning aluminum profiles form a portal frame structure.

3. The sliding canopy of the passenger boarding stairs as described in claim 2, characterized in that: The front side of the door's curved beam is fixed with an anti-collision rubber strip.

4. The sliding canopy of the passenger boarding stairs as described in claim 3, characterized in that: The electronic control components include a proximity sensor switch and a limit switch. The proximity sensor switch is fixed to the underside of the anti-collision rubber strip in front of the retractable awning, and the limit switch is located outside the retractable awning.

5. The sliding canopy of the passenger boarding stairs as described in claim 1, characterized in that: A low-voltage motor and a follow-rotating sprocket are installed under the left-side canopy fixing guide rail. The low-voltage motor outputs power to the drive sprocket through a bearing seat. A closed chain is formed between the drive sprocket and the follow-rotating sprocket. The drive sprocket rotates with the low-voltage motor, driving the chain to rotate.

6. The sliding canopy of the passenger boarding stairs as described in claim 1, characterized in that: After the retractable awning is installed, the lower limiting plate of the left handrail limiting assembly and the right handrail limiting assembly is designed with densely arranged locking holes in a straight line, and the auxiliary support locking welds on both sides are designed with spring locks.

7. The sliding canopy of the passenger boarding stairs as described in claim 6, characterized in that: To ensure the gap between the auxiliary support locking weld and the limiting plate, a nylon sleeve is installed on the inner side of the auxiliary support locking weld to prevent wear on the limiting plate.

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