Assembly type motor train unit outdoor steel structure boarding platform

Abstract

The utility model provides an assembly type motor train unit outdoor steel structure boarding platform. The assembly type motor train unit outdoor steel structure boarding platform comprises assembly type basic units, assembly type steel structure walking platform units, assembly type steel structure stepping units and assembly type hand rails. Wherein the assembly type foundation unit is pre-buried in a foundation cushion layer and used for bearing all loads; the assembly type steel structure walking platform unit is connected with the assembly type foundation unit through a reserved welding type metal base; the assembly type steel structure stepping unit is connected between the walking platform unit and the ground and provides a passage for people to go up and down. The assembly type handrail is mounted on the stepping unit, so that the safety of personnel is ensured; and telescopic connecting bridges are arranged on the two sides of the assembly type steel structure walking platform unit. By means of the assembly type structure, the platform is more flexible in overall layout and can be assembled according to actual requirements, for example, in different motor train unit parking areas or different station layouts, the shape and the position of the platform can be rapidly adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of EMU boarding equipment, and in particular to an assembled EMU outdoor steel structure boarding platform. Background Art

[0002] High-speed trains consist of several powered vehicles (EMUs) and unpowered vehicles (trailers). They operate in a fixed formation during their normal service life. EMUs typically consist of 8 or 16 cars, with the lead and trailing cars equipped with driver's cabs, allowing for bidirectional operation. Upon arrival, trains can reverse and operate in the opposite direction, minimizing track usage, time, and risk. These trains are particularly well-suited for reversing passenger trains at terminal stations, where frequent turning and shunting occur. They offer the advantages of dual-end control and efficient reversing.

[0003] After the high-speed train completes the mainline operation, in order to meet the maintenance, preparation and storage needs of the train, the train is generally parked in the train section, train depot or storage yard. Taking China's CR400 standard train as an example, when the train is in preparation, the height of the floor surface from the rail surface is 1260mm. In order to meet the needs of the driver getting on and off the train, an EMU boarding platform must be set up.

[0004] A boarding platform is a specialized facility located on the side of a track where EMUs are parked, such as at a train depot, passenger depot, or station, for train drivers, onboard mechanics, and other railway personnel to board and alight from EMUs. A boarding platform is a supporting facility for the track (or track) where EMUs are stored (parked) and should be designed, constructed, and commissioned simultaneously with new line construction, station renovations, and the construction of new EMU depots and passenger depots.

[0005] Traditional non-assembly boarding platforms have the following major problems when facing frequent and high-speed EMUs: (1) Complex installation and lack of flexibility: non-assembly designs usually require a lot of on-site welding, which is time-consuming and labor-intensive, and difficult to quickly adjust or relocate according to site conditions; (2) Difficult and costly maintenance: the structure is fixed, and it is difficult to replace components after aging or damage, which often involves large-scale disassembly and consumes a lot of manpower and material resources; (3) Significant safety hazards: the lack of effective connecting bridges or unreasonable step design increases the risk of passengers falling when getting on and off the train, especially when carrying luggage or moving items; (4) Poor adaptability: it is difficult to adapt to changes in EMU types, and the height and width differences between different vehicles cannot be well adapted, which limits the versatility of the platform; (5) Influence of environmental factors: under severe weather conditions such as rain, snow, and freezing, non-assembly platforms are prone to water and ice accumulation, reducing safety and comfort. Summary of the Invention

[0006] The purpose of the utility model is to provide an outdoor steel structure boarding platform for an assembled EMU in response to the deficiencies of the existing technology.

[0007] The specific technical solutions are as follows:

[0008] An outdoor steel structure boarding platform for an assembled EMU comprises an assembled base unit, an assembled steel structure running platform unit, an assembled steel structure step unit, and an assembled handrail; wherein the assembled base unit is pre-buried in a foundation cushion layer for bearing all loads; the assembled steel structure running platform unit and the matching base unit are connected via a reserved welded metal base; the assembled steel structure step unit is connected between the running platform unit and the ground to provide an up and down passage for personnel; the assembled handrail is installed on the step unit to ensure the safety of personnel; and retractable connecting bridges are provided on both sides of the assembled steel structure running platform unit to effectively reduce the risk of personnel stepping on empty space when boarding the vehicle and the hidden danger of materials being stuck and slipping during transportation.

[0009] Optionally, the assembled base unit is fastened to the running platform unit and the step unit by M12 bolts.

[0010] Optionally, the retractable connecting bridge includes two sliding blocks and a lap plate hinged between the two sliding blocks. A sliding groove is provided in the assembled steel structure running platform unit for the sliding block to approach or move away from the high-speed rail EMU. The lap plate slides along the sliding groove following the sliding block so that one end of the lap plate is lapped inside the high-speed rail EMU.

[0011] Optionally, the sliding block is driven hydraulically or electrically.

[0012] Optionally, an arc-shaped block is provided at one end of the lap plate close to the high-speed train unit.

[0013] Optionally, the assembled steel structure traveling platform unit includes a plurality of standard sections, and adjacent standard sections are connected by connecting steel plates and bolts.

[0014] Optionally, the assembled steel structure step unit is designed with anti-skid patterns or is installed with anti-skid pads.

[0015] Optionally, the assembled handrail is made of rust-proof galvanized steel pipe or stainless steel pipe.

[0016] Optionally, the surface of the connecting plate of the retractable connecting bridge is covered with an anti-slip material.

[0017] Optionally, the thickness of the connecting steel plates between the standard sections is not less than 10 mm.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The entire outdoor steel structure boarding platform for EMUs of the present invention utilizes an assembled structure, including a base unit, a running platform unit, a step unit, and handrails. This assembled structure allows for greater flexibility in the overall layout of the platform, allowing it to be assembled according to actual needs. For example, the platform's shape and position can be quickly adjusted to accommodate different EMU docking areas or station layouts, a feasibility often difficult to achieve with fixed structures in the prior art. Compared to the prior art, the retractable connecting bridge can adaptively adjust according to the EMU's docking position. In the prior art, the connection between the boarding platform and the EMU is often fixed. When the EMU's docking position deviates, a large gap can easily appear, leading to the risk of people stepping on empty space and materials getting stuck and slipping. The retractable connecting bridge in this solution effectively solves this problem. Regardless of the EMU's docking position, the bridge can be adjusted to reduce the risk of people stepping on empty space when boarding and the hidden danger of materials getting stuck and slipping during transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a side structural diagram of the present utility model;

[0022] Figure 3 This is a structural diagram of the welded metal platform base of the utility model;

[0023] Figure 4 This is a structural diagram of the telescopic connecting bridge of the utility model.

[0024] In the figure: 1. Assembled foundation unit; 2. Assembled steel structure walking platform unit; 3. Assembled steel structure step unit; 4. Assembled handrail; 5. Welded metal base; 6. Retractable connecting bridge; 61. Sliding block; 62. Lap plate; 63. Arc block; 64. Connecting spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0028] The utility model provides an assembled EMU outdoor steel structure boarding platform, referring to Figures 1-4 , including an assembled basic unit 1, an assembled steel structure running platform unit 2, an assembled steel structure step unit 3, and an assembled handrail 4; among them, the assembled basic unit 1 is pre-buried in the foundation cushion layer to bear all the loads; the assembled steel structure running platform unit 2 and the matching basic unit are connected through a reserved welded metal platform base 5; the assembled steel structure step unit 3 is connected between the running platform unit and the ground to provide an up and down passage for personnel; the assembled handrail 4 is installed on the step unit to ensure the safety of personnel; and retractable connecting bridges 6 are provided on both sides of the assembled steel structure running platform unit 2 to effectively reduce the risk of personnel stepping on air when boarding the vehicle and the hidden dangers of jamming and slipping during material transfer.

[0029] In this embodiment, the size of the prefabricated base unit 1 is 0.3mx 0.3mx 0.3m. The prefabricated base unit 1 plays a vital bearing role in the entire boarding platform structure. It is pre-buried in a carefully treated foundation cushion layer. During the construction process, the construction workers strictly excavate and treat the foundation cushion layer in accordance with the design requirements to ensure that its flatness and bearing capacity meet the requirements. Then, the prefabricated base unit 1 is accurately placed in the predetermined position and buried. The standard length of the prefabricated steel structure running platform unit 2 is 2500mm and the minimum width is 800mm. The prefabricated steel structure running platform unit 2 is the main walking passage for personnel in the boarding process, and the connection between the prefabricated base unit 1 is achieved through a reserved welded metal platform base 5. During the installation process, the position accuracy of the welded metal platform base 5 must be ensured first, and then the running platform unit and the base unit must be accurately docked. In order to further enhance the stability of the connection, M12 bolts are used for fastening the connection. This running platform unit is composed of multiple standard sections, and adjacent standard sections are connected by connecting steel plates and bolts. During the manufacturing process, the selection of connecting steel plates is very strict, and its thickness is not less than 10mm to ensure the firmness of the connection between adjacent standard sections. During assembly, the construction workers will accurately place the connecting steel plates at the docking position of the adjacent standard sections, and then use bolts to tighten them, ensuring that each bolt is tightened to the specified torque value to prevent loosening during use. In addition, a retractable connecting bridge 6 is provided on both sides of the assembled steel structure running platform unit 2, which can effectively reduce the risk of people stepping on air when boarding the vehicle and the hidden dangers of jamming and slipping during material transfer.

[0030] The prefabricated steel step unit 3 is primarily connected between the running platform unit and the ground, providing access for passengers to board and exit the platform. To ensure pedestrian safety, the step unit is designed with anti-slip grooves or anti-slip mats. The depth and spacing of the anti-slip grooves meet ergonomic and safety standards, and the anti-slip mats are made of a material with a high friction coefficient, good wear resistance, and good weather resistance. During installation, construction personnel ensure that the step unit is firmly and reliably connected to the running platform unit and the ground to ensure stability when passengers board and exit the platform.

[0031] The assembled handrail 4 is mounted on the step unit, primarily to ensure the safety of passengers entering and exiting the platform. It is constructed from rust-resistant galvanized or stainless steel pipe. Stringent design standards are adhered to during the manufacturing process, including pipe diameter, wall thickness, and railing height. During installation, the handrail is securely connected to the step unit, ensuring it can withstand lateral forces and preventing accidents caused by loosening of the handrail during use.

[0032] Reference Figure 2-Figure 4 The assembled basic unit 1 is fastened to the traveling platform unit and the step unit by M12 bolts.

[0033] The retractable connecting bridge 6 comprises two sliding blocks 61 and a lap plate 62 hinged between the two sliding blocks 61. A chute is provided within the prefabricated steel structure running platform unit 2 for sliding blocks 61 to move toward or away from the high-speed train. The chute is precision-machined and has a smooth inner wall, ensuring smooth sliding of the sliding block 61. The lap plate slides along the chute following the sliding block 61, allowing one end of the lap plate to overlap within the high-speed train. Sliding blocks 61 are driven hydraulically, electrically, or manually. In practice, if hydraulic drive is used, a dedicated hydraulic pump station and control system are provided, or manual adjustment is possible. The hydraulic pump station provides stable hydraulic power, which is transmitted to the hydraulic drive device of sliding block 61 via hydraulic pipelines. The control system can precisely control the flow and pressure of the hydraulic oil, thereby achieving smooth and precise movement of sliding block 61. If electric drive is used, a high-performance motor and transmission device are selected. The motor transmits power to sliding block 61 through transmission components such as a reducer, similarly achieving precise displacement control. In addition, if it is manually operated, a connecting spring 64 can be provided between the sliding block 61 and the inner wall of the sliding groove, and the connecting spring 64 plays a role in connecting and preventing the sliding block 61 and the overlapping plate 62 from separating.

[0034] Specifically, refer to Figure 4The end of the bridge plate 62, near the high-speed train, is equipped with a curved block 63. This block 63 is designed to better match the entrance structure of the high-speed train. The curvature of the block 63 has been precisely calculated to closely fit the shape of the train entrance, further reducing the risk of people stepping on empty space when boarding and the potential for materials to get stuck and slip during transfer. Furthermore, the bridge plate 62 of the retractable connecting bridge 6 is covered with a non-slip material with excellent wear resistance and a high coefficient of friction, ensuring the safe passage of people and materials even in wet or oily conditions.

[0035] Implementation process: When the EMU driver boards the train, he first arrives at the boarding platform from the ground, selects the assembled steel structure step unit 3 on the side closer to the driver's cab, and in rainy or snowy weather or dim light, uses the assembled handrail 4 to prevent people from slipping and falling, and then walks to the assembled steel structure running platform unit 2 through the step unit, and finally enters the EMU compartment through the running platform unit, the retractable connecting bridge 6 and the driver's compartment door; when the EMU driver gets off the train, the EMU first parks smoothly near the boarding platform, with the driver's compartment door close to the running platform unit, and then walks to the assembled steel structure step units 3 at both ends through the assembled steel structure running platform unit 2, and in rainy or snowy weather or dim light, uses the assembled handrail 4 to prevent people from slipping and falling, and finally gets off to the ground through the step unit.

[0036] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An outdoor steel structure boarding platform for assembled EMU, characterized in that: It includes an assembled base unit, an assembled steel structure running platform unit, an assembled steel structure step unit, and an assembled handrail; wherein, the assembled base unit is pre-buried in the foundation cushion layer to bear all the loads; the assembled steel structure running platform unit and the matching base unit are connected through a reserved welded metal base; the assembled steel structure step unit is connected between the running platform unit and the ground to provide an up and down passage for personnel; the assembled handrail is installed on the step unit to ensure the safety of personnel; and retractable connecting bridges are provided on both sides of the assembled steel structure running platform unit to effectively reduce the risk of personnel stepping on air when boarding the vehicle and the hidden dangers of jamming and slipping during material transfer.

2. The outdoor steel structure boarding platform for assembled EMU according to claim 1 is characterized in that: The assembled foundation unit is fastened to the assembled steel structure running platform unit and the assembled steel structure step unit by M12 bolts.

3. The outdoor steel structure boarding platform for assembled EMU according to claim 1 is characterized in that: The retractable connecting bridge includes two sliding blocks and a lap plate hinged between the two sliding blocks. A sliding groove is provided in the assembled steel structure running platform unit for the sliding block to approach or move away from the EMU. The lap plate slides along the sliding groove following the sliding block so that one end of the lap plate is lapped inside the EMU.

4. The outdoor steel structure boarding platform for assembled EMU according to claim 3 is characterized in that: The sliding block is driven hydraulically or electrically.

5. The outdoor steel structure boarding platform for assembled EMU according to claim 3 is characterized in that: An arc-shaped block is provided at one end of the lap plate close to the EMU.

6. The outdoor steel structure boarding platform for assembled EMU according to claim 1 is characterized in that: The assembled steel structure traveling platform unit includes a plurality of standard sections, and adjacent standard sections are connected by connecting steel plates and bolts.

7. The outdoor steel structure boarding platform for assembled EMU according to claim 1 is characterized in that: The fabricated steel structure step unit is designed with anti-skid patterns or is installed with anti-skid pads.

8. The outdoor steel structure boarding platform for assembled EMU according to claim 1 is characterized in that: The assembled handrail is made of galvanized steel pipe or stainless steel pipe treated with anti-rust treatment.

9. The outdoor steel structure boarding platform for assembled EMU according to claim 1, characterized in that: The surface of the connecting plate of the telescopic connecting bridge is covered with anti-slip material.

10. The outdoor steel structure boarding platform for assembled EMU according to claim 6, characterized in that: The thickness of the connecting steel plates between the standard sections shall not be less than 10 mm.

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