Pedal retractable handrail structure for rail transit

By designing a retractable handrail structure for rail transit treads, the problem of lack of handrails on automatic evacuation treads in rail transit train systems was solved. A combination of rotating and retractable design was achieved, which solved the technical problem and improved the safety and reliability of rail transit train systems.

CN224409251UActive Publication Date: 2026-06-26NANJING KANGNI MECHANICAL & ELECTRICAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING KANGNI MECHANICAL & ELECTRICAL
Filing Date
2025-09-11
Publication Date
2026-06-26

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Abstract

The utility model discloses a kind of pedal telescopic handrail structures for rail transit, including handrail bar one, handrail bar two, connecting rod welding piece and handrail fixed seat, connecting rod welding piece and handrail fixed seat are respectively connected to pedal by pin shaft one, pin shaft two and pressing plate;The handrail bar one is fixed on handrail fixed seat by M6 screw, handrail bar two is inserted into handrail bar one, and is positioned and connected in U-shaped groove by modified bolt.The utility model is easy to operate, convenient to use, and improves the safety reliability of evacuation pedal.
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Description

Technical Field

[0001] This utility model relates to the field of rail transit, and in particular to a retractable handrail structure for rail transit pedals. Background Technology

[0002] Currently, the automatic evacuation ramps in rail transit train systems lack handrails on both sides, posing a certain risk to passengers disembarking and no longer meeting the needs of the owners.

[0003] Therefore, it is necessary to develop a targeted telescopic handrail structure for rail transit to improve the safety and reliability of evacuation treads. Utility Model Content

[0004] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a telescopic handrail structure for rail transit, which is simple to operate, convenient to use, and improves the safety and reliability of evacuation treads.

[0005] Technical solution: The present invention relates to a telescopic handrail structure for rail transit, characterized in that it includes a first handrail, a second handrail, a connecting rod welded component, and a handrail fixing seat. The connecting rod welded component and the handrail fixing seat are respectively connected to the pedal via a first pin, a second pin, and a pressure plate. The first handrail is fixed to the handrail fixing seat with an M6 screw, and the second handrail passes through the first handrail and is positioned and connected in a U-shaped groove by a modified bolt.

[0006] The pin is positioned by a locating pin.

[0007] The second pin is positioned by a locating pin.

[0008] The aforementioned pedal is located on the rail transit vehicle.

[0009] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: In an emergency, the telescopic handrail of the present invention automatically unfolds with the evacuation platform, which can meet the needs of various working conditions and is safe and reliable; it is simple to operate and convenient to use, meeting the needs of the owners; and it improves the safety and reliability of the evacuation platform. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the present invention in its unfolded state. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the structure of the present invention in its unfolded state. Figure 2 ;

[0012] Figure 3 This is a schematic diagram of the structure of the present invention in its unfolded state. Figure 3 ;

[0013] Figure 4 This is a schematic diagram of the structure of the present invention in its recycling state;

[0014] In the diagram, 1 is the welded connecting rod; 2 is the handrail fixing seat; 3 is the first handrail; 4 is the second handrail; 5 is the positioning pin; 6 is the pressure plate; 7 is the M6 ​​screw; 8 is the first pin; 9 is the modified bolt; 10 is the second pin; and 11 is the pedal. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] The telescopic handrail structure of this utility model belongs to a rotary + telescopic composite motion design scheme; when the pedal is unfolded, the telescopic handrail structure opens with the pedal movement, and the second handrail extends along the first handrail to reach the use state; the telescopic handrail structure can adapt to different load conditions and automatically evacuate the pedal, which is simple and convenient, and easy to debug and maintain.

[0017] The present invention relates to a telescopic handrail structure for rail transit, comprising a handrail rod 3, a handrail rod 4, a connecting rod welded component 1, and a handrail fixing seat 2. The connecting rod welded component 1 and the handrail fixing seat 2 are connected to the pedal 11 via a pin 8, a pin 10, and a pressure plate 6, respectively. The handrail rod 3 is fixed to the handrail fixing seat 2 by an M6 screw 7. The handrail rod 4 passes through the handrail rod 3 and is positioned and connected in a U-shaped groove by a modified bolt 9. The pin 8 is positioned by a positioning pin 5. The pin 10 is positioned by a positioning pin 5. The pedal (11) is located on the rail transit vehicle.

[0018] In use, one end of the connecting rod welded part 1 is rotated downward at a certain angle by the force of the unfolding folding pedal, while the other end moves downward along the slide groove of the handrail fixing seat 2, causing the fixing seat 2 to move downward. At this time, the handrail bar 3 flips up, and the handrail bar 4 slides down under its own weight, that is, the pedal telescopic handrail structure unfolds. Before the pedal is retracted, the operator first pushes the handrail bar 4 back along the handrail bar 3, and then folds the pedal. One end of the connecting rod welded part 1 folds upward along the slide groove of the handrail fixing seat 2 with the pedal, that is, the pedal telescopic handrail structure is retracted.

[0019] This utility model relates to a telescopic handrail structure for rail transit platforms. The handrail quickly positions itself after flipping over, reaching its usable state. The flipping and positioning structure is novel, safe, and reliable. It requires no electrical or pneumatic control, is easy to operate, and offers high safety in emergencies. It is suitable for automatic evacuation platforms on rails, has minimal impact on existing platform dimensions, and can be used in various operating conditions. It meets the requirements for passenger escape in emergency situations while minimizing impact on existing automatic evacuation platforms on rail vehicles, enabling passengers to operate and use it as quickly as possible in the event of power or gas outages.

Claims

1. A pedal telescopic handrail structure for rail transit, characterized in that: It includes a first handrail (3), a second handrail (4), a connecting rod welded part (1) and a handrail fixing seat (2). The connecting rod welded part (1) and the handrail fixing seat (2) are connected to the pedal (11) by a first pin (8), a second pin (10) and a pressure plate (6), respectively. The first handrail (3) is fixed to the handrail fixing seat (2) by an M6 screw (7). The second handrail (4) is inserted into the first handrail (3) and positioned and connected in the U-shaped groove by a modified bolt (9).

2. The retractable handrail structure for a transit vehicle according to claim 1, wherein: The pin (8) is positioned by the locating pin (5).

3. The retractable handrail structure for a transit vehicle according to claim 1, wherein: The pin 2 (10) is positioned by the locating pin (5).

4. The retractable handrail structure for a transit vehicle according to claim 1, wherein: The pedal (11) is located on the rail transit vehicle.