A large vehicle with stowable stairs

Abstract

The utility model relates to large -scale vehicle accessory technical field, concretely relates to a large -scale vehicle with can accomodate stair, vehicle is provided with door, connecting platform bin and stair handrail accomodating bin, and connecting platform bin sets up below the door, is provided with telescopic guide rail and connecting platform in connecting platform bin, telescopic guide rail installs in connecting platform bin, and connecting platform installs on telescopic guide rail and along telescopic guide rail stretches out or shrinks into connecting platform bin, the stair handrail accomodating bin places stair and handrail, and the stair is detachable with connecting platform, and the handrail is detachable with stair and door respectively, the stair, connecting platform, handrail and door form the passenger channel, and the passenger channel is parallel with the vehicle advancing direction, the utility model carries out structural optimization to the external stair, promotes the passenger efficiency, improves the security, does not occupy the passenger space in the car, and the vehicle width will not be increased significantly when using, is applicable to the large -scale special vehicle needing to park operation.

Description

Technical Field

[0001] This utility model relates to the field of large vehicle parts technology, specifically to a large vehicle with a retractable staircase. Background Technology

[0002] Some buses, due to limitations in overall length, wheelbase, load capacity, and cost control during the initial design phase, typically have only a single door. This design forces passengers to share the same passageway for boarding and alighting, which easily creates congestion bottlenecks, significantly reduces traffic efficiency, and poses safety hazards.

[0003] To alleviate traffic congestion on single-door buses and improve passenger boarding and alighting efficiency, attempts were made to add supplementary structures to the buses, such as fixed step extension platforms, auxiliary folding pedals, or external door reinforcements. However, most of these structures are rigidly installed and cannot be flexibly stored or adjusted according to operational needs, thus occupying interior passenger space, which contradicts the design philosophy of single-door buses to increase passenger space.

[0004] In summary, existing technologies have the following problems: 1. The design of single-door buses can easily cause congestion bottlenecks, significantly reduce traffic efficiency, and pose safety hazards; 2. The additional stair structure designed for single-door buses is usually rigidly connected to the vehicle body, with a relatively fixed storage location, occupying a significant amount of interior passenger space; 3. The additional stair structures for boarding and alighting passengers that are used outside the vehicle are usually set perpendicular to the vehicle, significantly increasing the lateral width of the vehicle during use, requiring a larger parking space, and are not suitable for use in small spaces. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide a large vehicle with a retractable staircase, in which the staircase is set on the side of the vehicle and the passenger boarding and alighting passage is parallel to the direction of the vehicle body, thereby improving traffic efficiency, ensuring passenger boarding and alighting safety, not occupying the passenger space inside the vehicle, and not significantly increasing the lateral width of the vehicle when parked.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A large vehicle with a retractable staircase is provided. The vehicle is equipped with a door, a connecting platform compartment, and a staircase handrail storage compartment. The connecting platform compartment is located below the door. The connecting platform compartment contains a telescopic guide rail and a connecting platform. The telescopic guide rail is installed inside the connecting platform compartment, and the connecting platform is installed on the telescopic guide rail and extends or retracts into the connecting platform compartment along the telescopic guide rail. The staircase handrail storage compartment contains the staircase and handrail. The staircase is detachably connected to the connecting platform, and the handrail is detachably connected to both the staircase and the door. The staircase, connecting platform, handrail, and door form a passenger boarding / alighting passage, which is parallel to the direction of vehicle travel.

[0007] Furthermore, the telescopic guide rail includes a fixed end and a sliding end, wherein the fixed end is fixedly installed in the connecting platform compartment by welding, and the connecting platform is installed on the sliding end.

[0008] Furthermore, a locking device is provided on the telescopic guide rail to lock the moving end of the telescopic guide rail.

[0009] Furthermore, the staircase includes two parallel connecting beams, with multiple treads placed between the two connecting beams.

[0010] Furthermore, the tops of the two connecting beams are equipped with buckles, and the connecting platform is equipped with slots that match the buckles. The stairs and the connecting platform are connected by the buckles and slots.

[0011] Furthermore, the handrail is equipped with a pin, and the connecting beam on the outer side of the staircase and the inner side of the door are equipped with slots that match the pins of the handrail. The staircase and door are fixed to the handrail by a sleeve-type connection between the pin and the slot.

[0012] Furthermore, the handrail includes two horizontal bars and multiple vertical bars, with the horizontal bars and vertical bars fixedly connected to form a grid-like handrail structure.

[0013] Furthermore, the horizontal and vertical bars are fixedly connected by welding.

[0014] Furthermore, the locking device is a bolt-type retaining pin.

[0015] Furthermore, wear-resistant and anti-slip sleeves are installed at the bottom ends of both connecting beams of the staircase.

[0016] This utility model has the following advantages: 1. This utility model optimizes the structure of the passenger boarding and alighting passage attached to large vehicles by setting the stairs on the side of the vehicle and parallel to the vehicle body direction, forming a passenger boarding and alighting passage parallel to the vehicle body. This setting reduces the slope of the stairs, improves the passage efficiency, ensures the safety of passengers boarding and alighting, does not occupy the passenger space inside the vehicle, and does not significantly increase the lateral width of the vehicle when the vehicle is parked, reducing the space required for parking. It is suitable for large special vehicles that require parking operations.

[0017] 2. When not in use, the stairs and handrails in this utility model are placed in the stair handrail storage compartment, and the connecting platform is retracted into the connecting platform compartment along the telescopic guide rail when not in use. This makes full use of the chassis space of large vehicles, does not occupy the passenger space inside the vehicle, and greatly increases the comfort of passengers inside the vehicle.

[0018] 3. The stairs, connecting platform, door and handrail in this utility model together form a passenger boarding and alighting passage. The door and handrail together form a guardrail, which protects passengers during the boarding and alighting process and greatly improves the safety of passengers during the boarding and alighting process.

[0019] 4. In this utility model, the staircase and the connecting platform are connected by snap-fit ​​to form a detachable connection, and the staircase and the door and the handrail are connected by pins and slots to form a detachable connection, which facilitates disassembly and improves efficiency. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the connection state of this utility model.

[0021] Figure 2 This is a structural schematic diagram of the connected state from inside the vehicle.

[0022] Figure 3 This is a front view of the connection state of this utility model.

[0023] Figure 4 This is a schematic diagram of the handrail structure in this utility model.

[0024] Figure 5 This is a structural schematic diagram of the staircase in this utility model.

[0025] in, 1 is a vehicle. 2 is the car door, 2-1 is the slot. 3 is the connection platform warehouse. 3-1 is the connection platform, and 3-1-1 is the card slot. 3-2 is a telescopic guide rail; 4 is a storage compartment for the stair railing; 4-1 is the staircase, 4-1-1 is the connecting beam, 4-1-2 is the tread, and 4-1-3 is the clip; 4-2 is the handrail, 4-2-1 is the horizontal bar, 4-2-2 is the vertical bar, and 4-2-3 is the latch. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 5As shown, the vehicle is equipped with a door, a connecting platform compartment, and a stair handrail storage compartment. The connecting platform compartment is located below the door. The connecting platform compartment contains a telescopic guide rail and a connecting platform. The telescopic guide rail is installed inside the connecting platform compartment, and the connecting platform is installed on the telescopic guide rail and extends or retracts into the connecting platform compartment along the telescopic guide rail. The stair handrail storage compartment contains the stairs and handrail. The stairs are detachably connected to the connecting platform, and the handrail is detachably connected to both the stairs and the door. The stairs, connecting platform, handrail, and door form a passenger boarding and alighting passage, which is parallel to the direction of vehicle travel.

[0028] In this embodiment, the structure of the external staircase for large vehicles is optimized by placing the staircase on the side of the vehicle and parallel to the vehicle body, forming a passenger boarding and alighting passage parallel to the vehicle body. This arrangement reduces the slope of the staircase, improves traffic efficiency, ensures the safety of passengers boarding and alighting, does not occupy the passenger space inside the vehicle, and does not significantly increase the lateral width of the vehicle when it is parked, thus reducing the space required for parking. It is suitable for large special vehicles that require parking operations, such as medical vehicles and catering vehicles.

[0029] like Figures 1 to 3 As shown, the telescopic guide rail includes a fixed end and a sliding end. The fixed end is fixedly installed in the connecting platform compartment by welding, and the connecting platform is installed on the sliding end. A locking device is provided on the telescopic guide rail to lock the movable end of the telescopic guide rail. A locking device is also provided on the connecting platform to lock the movable end of the telescopic guide rail.

[0030] In this embodiment, the connecting platform is mounted on the sliding end of the telescopic guide rail and extends or retracts into the connecting platform compartment as the sliding end extends. A locking device is used to secure the sliding end, thereby fixing the connecting platform in place. When parked, the locking device can be used to secure the sliding end, thus fixing the connecting platform extending from the connecting platform compartment. During driving, the locking device secures the connecting platform within the connecting platform compartment, effectively protecting the connecting platform.

[0031] In this embodiment, the locking device uses a bolt-type retaining pin. Specifically, locking is achieved by turning the bolt with a knob to lock the sliding end.

[0032] like Figure 4 As shown, the staircase includes two parallel connecting beams, with multiple treads placed between the two connecting beams.

[0033] In this embodiment, the top of the two connecting beams is provided with buckles, and the connecting platform is provided with slots that match the buckles. The staircase and the connecting platform are connected by the buckles and slots.

[0034] In this embodiment, the handrail is provided with a pin, and the connecting beam on the outer side of the staircase and the inner side of the car door are provided with slots that match the pins of the handrail. The staircase and the car door are fixed to the handrail by means of a sleeve-type connection between the pins and the slots.

[0035] In this embodiment, wear-resistant and anti-slip sleeves are provided at the bottom ends of both connecting beams of the staircase.

[0036] like Figure 5 As shown, the handrail includes two horizontal bars and multiple vertical bars, which are fixedly connected to form a grid-like handrail structure.

[0037] In this embodiment, the horizontal bar and the vertical bar are fixedly connected by welding.

[0038] The installation process of this utility model is as follows: Open the connecting platform compartment, unlock the locking device, pull out the connecting platform, lock the locking device to fix the connecting platform, take out the stairs and handrail from the stair handrail storage compartment, fix the stairs and connecting platform by connecting the buckles on the stairs with the slots on the connecting platform, open the car door, insert the pins on the handrail into the slots on the inside of the stairs and the car door to complete the fixation, forming a passenger boarding and alighting passage.

[0039] In summary, this utility model optimizes the structure of the passenger boarding and alighting passage for large vehicles by placing the stairs on the side of the vehicle and parallel to the vehicle body, thus forming a passenger boarding and alighting passage parallel to the vehicle body. This arrangement reduces the slope of the stairs, improves traffic efficiency, ensures the safety of passenger boarding and alighting, does not occupy the passenger space inside the vehicle, and does not significantly increase the lateral width of the vehicle when it is parked, reducing the space required for parking. It is suitable for large special vehicles that require parking operations.

[0040] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A large vehicle with a retractable staircase, characterized in that: The vehicle is equipped with a door, a connecting platform compartment, and a stair handrail storage compartment. The connecting platform compartment is located below the door. The connecting platform compartment is equipped with a telescopic guide rail and a connecting platform. The telescopic guide rail is installed inside the connecting platform compartment, and the connecting platform is installed on the telescopic guide rail and extends or retracts into the connecting platform compartment along the telescopic guide rail. The staircase storage compartment holds the staircase and handrail. The staircase is detachably connected to the connecting platform, and the handrail is detachably connected to both the staircase and the car door. Stairs, connecting platforms, handrails, and doors form passenger boarding and alighting passages, which are parallel to the direction of vehicle travel.

2. A large vehicle with a retractable staircase according to claim 1, characterized in that: The telescopic guide rail includes a fixed end and a sliding end. The fixed end is fixedly installed in the connecting platform compartment by welding, and the connecting platform is installed on the sliding end.

3. A large vehicle with a retractable staircase according to claim 2, characterized in that: The telescopic guide rail is equipped with a locking device to lock the moving end of the telescopic guide rail.

4. A large vehicle with a retractable staircase according to claim 1, characterized in that: The staircase consists of two parallel connecting beams, with multiple treads placed between the two beams.

5. A large vehicle with a retractable staircase according to claim 4, characterized in that: The top of the two connecting beams is equipped with buckles, and the connecting platform is equipped with slots that match the buckles. The stairs and the connecting platform are connected by the buckles and slots.

6. A large vehicle with a retractable staircase according to claim 4, characterized in that: The handrail is equipped with a pin, and the connecting beam on the outside of the staircase and the inside of the door are equipped with slots that match the pins of the handrail. The staircase and the door are fixed to the handrail by a sleeve-type connection between the pin and the slot.

7. A large vehicle with a retractable staircase according to claim 1, characterized in that: The handrail consists of two horizontal bars and multiple vertical bars, which are fixedly connected to form a grid-like handrail structure.

8. A large vehicle with a retractable staircase according to claim 7, characterized in that: The horizontal and vertical bars are fixedly connected by welding.

9. A large vehicle with a retractable staircase according to claim 3, characterized in that: The locking device is a bolt-type fixing pin.

10. A large vehicle with a retractable staircase according to claim 4, characterized in that: The bottom ends of both connecting beams of the staircase are fitted with wear-resistant and anti-slip sleeves.

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