Fuxing bullet train internal end door anti-collision device

Abstract

This utility model relates to the technical field of rail transit equipment accessories, specifically to an anti-collision device for the inner end door of a Fuxing high-speed train. The device includes a door body, with multi-level buffer anti-collision components on both the left and right sides. Each multi-level buffer anti-collision component includes a door body bonding plate detachably mounted on the side of the door body. An inner support frame is detachably mounted on the outer surface of the door body bonding plate. An inner rubber pad is placed between the inner support frame and the door body bonding plate. An outer elastic anti-collision plate is placed on the outer side of the inner support frame. Multiple intermediate elastic anti-collision strips arranged linearly and at equal intervals are fixedly installed between the outer elastic anti-collision plate and the inner support frame. Multiple middle-layer energy-dissipating buffer blocks are also fixedly installed between the outer elastic anti-collision plate and the inner support frame, with the middle energy-dissipating buffer blocks located between two adjacent intermediate elastic anti-collision strips. This utility model has good buffering and anti-collision protection effects, which helps to extend its service life.

Description

Technical Field

[0001] This utility model relates to the technical field of rail transit equipment accessories, specifically to an anti-collision device for the inner end door of the Fuxing bullet train. Background Technology

[0002] In the operation of the Fuxing bullet train, the inner end doors are a key component for passenger passage and space separation between carriages, and their operational stability directly affects passenger safety and travel experience. With the continuous growth of passenger traffic on bullet trains, the inner end doors face frequent opening and closing, and collisions with passengers during daily use. The sides of the doors are prone to deformation and component damage due to external impacts, affecting not only the normal opening and closing function of the doors but also potentially increasing operating costs due to increased maintenance frequency, and even posing safety hazards in emergencies. Therefore, equipping the inner end doors with reliable anti-collision devices has become an important requirement for ensuring the long-term stable operation of the inner end doors of bullet trains and improving passenger safety.

[0003] Currently, there are many shortcomings in the anti-collision measures for the inner doors of high-speed trains on the market, making it difficult to meet the high requirements of actual operation. For example, some inner doors only have a single layer of rubber strips pasted on the side of the door as an anti-collision structure. Although this design can provide some cushioning, the cushioning capacity of a single material is limited. When encountering a large impact (such as accidental collisions when passengers pass through quickly or scrapes during luggage handling), the rubber strips are easily squeezed, deformed, or even detached, failing to effectively disperse the impact force. The side of the door will still be directly damaged, leading to problems such as door structure deformation and reduced sealing performance, affecting the service life and safety of the inner doors.

[0004] Some internal door anti-collision devices employ a fixed, integrated buffer structure, rigidly connecting the buffer components to the door body. While this design slightly improves the buffering effect, it suffers from significant maintenance drawbacks: if the buffer components wear out, age, or become damaged due to long-term use, the entire anti-collision structure or even parts of the door body need to be disassembled and replaced. This process is complex, time-consuming, and severely impacts the normal operation and scheduling of the high-speed trains. Therefore, we propose an internal door anti-collision device for the Fuxing high-speed train. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-collision device for the inner end door of the Fuxing high-speed train to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The anti-collision device for the inner end door of the Fuxing bullet train includes a door body. Multi-level buffer anti-collision components are installed on both the left and right sides of the door body. Each multi-level buffer anti-collision component includes a door body bonding plate detachably installed on the side of the door body. An inner support frame is detachably installed on the outer surface of the door body bonding plate. An inner rubber pad is installed between the inner support frame and the door body bonding plate. An outer elastic anti-collision plate is installed on the outer side of the inner support frame. Multiple intermediate elastic anti-collision strips arranged linearly and at equal intervals are fixedly installed between the outer elastic anti-collision plate and the inner support frame. Multiple middle energy-dissipating buffer blocks are also fixedly installed between the outer elastic anti-collision plate and the inner support frame, with each middle energy-dissipating buffer block located between two adjacent intermediate elastic anti-collision strips.

[0008] Preferably, the height of the multi-level buffer anti-collision component is less than the height of the door body, and the vertical distance between the bottom surface of the multi-level buffer anti-collision component and the bottom surface of the door body is between 5cm and 8cm;

[0009] This feature ensures that the multi-level buffer anti-collision components will not interfere with the normal installation of the door on external door frames or other parts.

[0010] Preferably, a voice prompt device and an LED warning light are provided on the side of the top panel of the door, and the voice prompt device is used to provide voice prompts for operation.

[0011] Preferably, the door panel is detachably connected to the door body by a plurality of fastening bolts, and a plurality of anti-slip pads are also provided between the door panel and the door body;

[0012] The anti-slip pads in this feature provide anti-slip protection for the door panel area.

[0013] Preferably, a guide sleeve is fixedly installed on the inner side of the inner support frame, and a guide post is fixedly installed at a corresponding position on the outer side of the door panel. The guide sleeve is fitted onto the guide post and slidably connected to the guide post.

[0014] This setting facilitates positioning and assembly operations.

[0015] Preferably, the inner support frame is fixed to the door panel by a plurality of fastening bolts, and a spring is sleeved on the fastening bolt, the spring being located between the inner support frame and the door panel;

[0016] This design facilitates the assembly and disassembly of the inner support frame and the door panel, while the spring prevents the fastening bolts from loosening.

[0017] Preferably, the intermediate elastic anti-collision strip has multiple metal reinforcing ribs integrally formed inside, and the metal reinforcing ribs are arranged along the thickness direction of the intermediate elastic anti-collision strip;

[0018] This feature makes the structure of the central elastic anti-collision strip more robust and prevents excessive deformation.

[0019] Preferably, a metal spring sheet is integrally formed inside the middle layer energy-consuming buffer block, and the metal spring sheet is in the shape of a flat S-shape;

[0020] This feature allows the metal spring to reset after being compressed, thus restoring the middle energy-consuming buffer block to its original state.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model achieves layered absorption and dispersion of impact force on the side of the door by setting up a multi-level buffer and anti-collision assembly consisting of a door body bonding plate, an inner support frame, an inner rubber pad, an outer elastic anti-collision plate, a middle elastic anti-collision strip, and a middle energy-dissipating buffer block. When an impact occurs, the outer elastic anti-collision plate first provides initial buffering, the middle elastic anti-collision strip and the middle energy-dissipating buffer block further absorb energy, and the inner rubber pad finally weakens the remaining impact force. This avoids the problem that a single buffer structure cannot cope with large impacts, and achieves the effect of effectively protecting the door body, preventing door deformation and damage, and extending the service life of the inner door.

[0023] 2. This utility model achieves convenient disassembly and secure fixing of each component of the anti-collision assembly by using detachable connections between the door panel and the door body, and between the inner support frame and the door panel, along with anti-slip pads and spring-loaded fastening bolts. When components show wear and aging, it is not necessary to disassemble the entire door body or anti-collision structure; only the corresponding component needs to be replaced. Simultaneously, the springs prevent the fastening bolts from loosening, and the anti-slip pads ensure connection stability, thereby reducing maintenance difficulty, shortening repair time, and minimizing the impact on train operation and scheduling.

[0024] 3. This utility model reasonably sets the height of the multi-level buffer anti-collision components to maintain a distance from the bottom surface of the door, so as to avoid affecting the normal installation of the door; a metal reinforcing rib is set in the middle elastic anti-collision strip to enhance its structural strength and prevent excessive deformation; an S-shaped metal spring is set in the middle energy-dissipating buffer block to help it reset after being compressed; at the same time, the cooperation of the guide post and the guide sleeve ensures accurate assembly positioning. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial structural schematic diagram of the present invention;

[0027] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a cross-sectional view of the intermediate elastic anti-collision strip of this utility model;

[0029] Figure 5 This is a cross-sectional view of the middle layer energy-consuming buffer block of this utility model;

[0030] The meanings of the labels in the diagram are as follows:

[0031] 1. Door body; 10. Voice prompt device; 11. LED warning lights;

[0032] 2. Multi-level buffer anti-collision components; 20. Door panel; 201. Anti-slip pad; 21. Guide post; 22. Inner support frame; 221. Inner rubber pad; 23. Guide sleeve; 24. Outer elastic anti-collision plate; 25. Middle elastic anti-collision strip; 251. Metal reinforcing rib; 26. Middle energy-dissipating buffer block; 261. Metal spring; 27. Fastening bolt; 28. Spring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5This utility model provides a technical solution: an anti-collision device for the inner end door of a Fuxing bullet train, including a door body 1. Multi-level buffer anti-collision components 2 are provided on both the left and right sides of the door body 1. Each multi-level buffer anti-collision component 2 includes a door body bonding plate 20 detachably installed on the side of the door body 1. An inner support frame 22 is detachably installed on the outer surface of the door body bonding plate 20. An inner rubber pad 221 is provided between the inner support frame 22 and the door body bonding plate 20. An outer elastic anti-collision plate 24 is provided on the outer side of the inner support frame 22. Multiple linearly arranged anti-collision plates are fixedly installed between the outer elastic anti-collision plate 24 and the inner support frame 22. The door 1 is protected by a series of equally spaced intermediate elastic anti-collision strips 25. Multiple middle-layer energy-dissipating buffer blocks 26 are also fixedly installed between the outer elastic anti-collision plate 24 and the inner support frame 22. The middle-layer energy-dissipating buffer blocks 26 are located between two adjacent intermediate elastic anti-collision strips 25. When the impact force is applied to the side of the door 1, the outer elastic anti-collision plate 24 first buffers the impact, the intermediate elastic anti-collision strips 25 and the middle-layer energy-dissipating buffer blocks 26 further absorb and disperse the energy, and the inner rubber pad 221 finally weakens the remaining impact force. This achieves multi-level protection for the door 1, effectively preventing the door 1 from being deformed or damaged due to external impact, and extending the service life of the inner door.

[0035] In this embodiment, the height of the multi-level buffer anti-collision component 2 is less than the height of the door body 1, and the vertical distance between the bottom surface of the multi-level buffer anti-collision component 2 and the bottom surface of the door body 1 is between 5cm and 8cm. This ensures that the multi-level buffer anti-collision component 2 can play an anti-collision role without interfering with external door frames or other installation structures, thus ensuring that the door body 1 can be installed normally in the designated position without affecting the overall assembly and use of the inner door.

[0036] like Figure 1 As shown, a voice prompt device 10 and an LED warning light 11 are installed on the side of the top panel of the door body 1. The voice prompt device 10 is used for voice prompt operation, so that the voice prompt device 10 can prompt passengers on the opening and closing status of the door body 1 or the anti-collision warning through voice. The LED warning light 11 provides an auxiliary reminder through light signals. The dual prompting method can effectively improve passengers' attention to the operating status of the door body 1, reduce collision accidents caused by passenger negligence, and further ensure the safety of the inner door and the safety of passenger passage. Moreover, the voice prompt device 10, the LED warning light 11, as well as the vehicle power supply, controller and other components are all existing conventional technologies, which will not be described in detail here.

[0037] Specifically, the door panel 20 is detachably connected to the door 1 by multiple fastening bolts. Multiple anti-slip pads 201 are also provided between the door panel 20 and the door 1 to facilitate the maintenance and replacement of the multi-level buffer anti-collision assembly 2 in the future. At the same time, the anti-slip pads 201 can increase the friction between the door panel 20 and the door 1, prevent the door panel 20 from sliding or shifting during use, and ensure the stability of the installation of the multi-level buffer anti-collision assembly 2.

[0038] like Figure 3 As shown, a guide sleeve 23 is fixedly installed on the inner side of the inner support frame 22, and a guide post 21 is fixedly installed at the corresponding position on the outer side of the door panel 20. The guide sleeve 23 is fitted onto the guide post 21 and slidably connected to the guide post 21. When assembling the inner support frame 22 and the door panel 20, the guide post 21 and the guide sleeve 23 can play a precise guiding and positioning role, avoiding positional deviations during assembly, ensuring accurate assembly of each component of the multi-level buffer anti-collision assembly 2, and ensuring stable anti-collision performance.

[0039] like Figure 3 As shown, the inner support frame 22 is fixed to the door panel 20 by multiple fastening bolts 27. Springs 28 are fitted on the fastening bolts 27 and are located between the inner support frame 22 and the door panel 20. This allows for easy disassembly and assembly of the inner support frame 22 and the door panel 20 via the fastening bolts 27, facilitating the inspection and replacement of components such as the inner rubber pad 221. At the same time, the springs 28 can generate continuous elastic pressure to prevent the fastening bolts 27 from loosening under the vibration environment of the EMU operation, ensuring the firmness of the structural connection.

[0040] like Figure 4 As shown, the intermediate elastic anti-collision strip 25 has multiple metal reinforcing ribs 251 integrally formed inside. The metal reinforcing ribs 251 are arranged along the thickness direction of the intermediate elastic anti-collision strip 25, so that the metal reinforcing ribs 251 can enhance the structural strength of the intermediate elastic anti-collision strip 25, prevent the intermediate elastic anti-collision strip 25 from excessively deforming or breaking when subjected to large impact force, ensure that the intermediate elastic anti-collision strip 25 maintains good buffering performance for a long time, and improve the durability of the multi-level buffer anti-collision component 2.

[0041] like Figure 5 As shown, a metal spring sheet 261 is integrally formed inside the middle energy-dissipating buffer block 26. The metal spring sheet 261 is flat and S-shaped, so that when the middle energy-dissipating buffer block 26 is deformed by pressure, the S-shaped metal spring sheet 261 can deform synchronously and store elastic potential energy. When the impact force disappears, the metal spring sheet 261 can quickly release the elastic potential energy to drive the middle energy-dissipating buffer block 26 to return to its original shape, ensuring that the middle energy-dissipating buffer block 26 can repeatedly play a buffering role and ensuring the reusability of the multi-level buffer anti-collision component 2.

[0042] When using the anti-collision device for the inner end door of the Fuxing bullet train, the door body fitting plate 20 and the anti-slip pad 201 are first fixed to the left and right sides of the door body 1 by fastening bolts. The guide post 21 of the door body fitting plate 20 and the guide sleeve 23 of the inner support frame 22 are aligned to complete the positioning. Then, the inner support frame 22 and the door body fitting plate 20 are fixed with fastening bolts 27 with springs 28 to ensure that the inner rubber pad 221 is tightly fitted. At this time, the multi-level buffer structure composed of the outer elastic anti-collision plate 24, the middle elastic anti-collision strip 25 and the middle energy-dissipating buffer block 26 is in place.

[0043] In daily operation, if an impact occurs, the outer elastic anti-collision plate 24 will buffer first, the middle elastic anti-collision strip 25 and the middle energy-dissipating buffer block 26 will absorb and disperse the energy, the inner rubber pad 221 will weaken the remaining impact force, the metal reinforcing rib 251 will prevent excessive deformation, and the S-shaped metal spring sheet 261 will help the buffer block to reset.

[0044] During maintenance, the fastening bolts of the door panel 20 or the inner support frame 22 can be removed to replace the damaged parts individually. The spring 28 prevents the bolts from loosening, and the guide post 21 and guide sleeve 23 ensure accurate reinstallation positioning.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crash prevention device for end doors in a HUHAI bullet train, comprising a door body (1), characterized in that: The door body (1) is provided with multi-level buffer anti-collision components (2) on both the left and right sides. The multi-level buffer anti-collision components (2) include a door body bonding plate (20) that can be detachably installed on the side of the door body (1). An inner support frame (22) is detachably installed on the outer side of the door body bonding plate (20). An inner rubber pad (221) is provided between the inner support frame (22) and the door body bonding plate (20). An outer elastic anti-collision plate (24) is provided on the outer side of the inner support frame (22). A plurality of intermediate elastic anti-collision strips (25) arranged linearly and equally spaced are fixedly installed between the outer elastic anti-collision plate (24) and the inner support frame (22). A plurality of middle energy-dissipating buffer blocks (26) are also fixedly installed between the outer elastic anti-collision plate (24) and the inner support frame (22). The middle energy-dissipating buffer blocks (26) are located between two adjacent intermediate elastic anti-collision strips (25).

2. The anti-collision device for the inner end door of the Fuxing Hao motor train unit according to claim 1, characterized in that: The height of the multi-level buffer anti-collision component (2) is less than the height of the door body (1), and the vertical distance between the bottom surface of the multi-level buffer anti-collision component (2) and the bottom surface of the door body (1) is between 5cm and 8cm.

3. The anti-collision device of the end door of the Fuxing Hao motor train unit according to claim 1, characterized in that: The top panel of the door (1) is provided with a voice prompt device (10) and an LED warning light (11), and the voice prompt device (10) is used to provide voice prompts for operation.

4. The anti-collision device of the end door of the Fuxing Hao motor train unit according to claim 1, characterized in that: The door panel (20) and the door body (1) are detachably connected by multiple fastening bolts, and multiple anti-slip pads (201) are also provided between the door panel (20) and the door body (1).

5. The anti-collision device of the end door of the Fuxing Hao motor train unit according to claim 1, characterized in that: A guide sleeve (23) is fixedly installed on the inner side of the inner support frame (22), and a guide post (21) is fixedly installed at the corresponding position on the outer side of the door body fitting plate (20). The guide sleeve (23) is fitted on the guide post (21) and slidably connected to the guide post (21).

6. The anti-collision device for the inner end door of the Fuxing bullet train according to claim 5, characterized in that: The inner support frame (22) is fixed to the door body fitting plate (20) by a plurality of fastening bolts (27). A spring (28) is sleeved on the fastening bolt (27) and the spring (28) is located between the inner support frame (22) and the door body fitting plate (20).

7. The anti-collision device of the end door of the HXD2 EMU according to claim 1, characterized in that: The intermediate elastic anti-collision strip (25) has multiple metal reinforcing ribs (251) integrally formed inside, and the metal reinforcing ribs (251) are arranged along the thickness direction of the intermediate elastic anti-collision strip (25).

8. The anti-collision device of the end door of the HXD2 EMU according to claim 1, characterized in that: The middle layer energy-consuming buffer block (26) has an integrally formed metal spring sheet (261), which is flat and S-shaped.

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