Rail transit platform safety pedal locking structure
By designing a pedal frame and locking mechanism, and utilizing electric push rods and spring buffers, the stability problem of the train pedal structure was solved, achieving stable locking and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANGDAO DISTRICT HONGWANDA MOLD PROCESSING FACTORY
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-05
AI Technical Summary
Existing technology is not suitable for the independent pedal structure used on trains, posing safety hazards and stability issues.
A structure including a step frame and a locking mechanism was designed. The step frame is stably connected to the platform and the train by an electric push rod driving the sliding rod and the linkage rod. Springs and sliding columns are used to provide cushioning and avoid rigid impact.
It achieves stable locking of the train pedals, prevents slippage, extends service life, and improves safety and stability.
Smart Images

Figure CN224323980U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pedal locking technology, and in particular to a safety pedal locking structure for rail transit platforms. Background Technology
[0002] When a train is carrying passengers, it uses a safety step when it arrives at a platform to facilitate passengers getting off the train. The safety step connects the gap between the train body and the platform, ensuring that passengers can safely walk from the train to the platform. The existing green trains have a separate, movable step, which is prone to displacement when subjected to impact, posing a certain safety hazard.
[0003] The prior art patent document with publication number CN221340588U provides a locking structure for a safety pedal on a rail transit platform. This device uses a pedal vibration mechanism to drive a striking cam to rotate when the safety pedal slides inward toward the bottom of the train. The rotating striking cam drives a striking block to slide back and forth, and the reciprocating sliding of the striking block continuously strikes the safety pedal, causing the safety pedal to vibrate. The vibration of the safety pedal shakes up impurities on the safety pedal, making it easier to clean the impurities on the safety pedal.
[0004] Although the existing technical solutions described above can facilitate the cleaning of impurities on the safety pedal through the cooperation of various structures, they still have the following drawbacks: the existing technology is convenient for the use of automatic pedals in high-speed trains, but in train pedals, since the pedals are independent structures, the existing technology cannot be adapted, so the existing technology is not suitable for use on trains.
[0005] In view of this, we propose a locking structure for safety pedals on rail transit platforms. Utility Model Content
[0006] 1. Technical problems to be solved
[0007] The purpose of this application is to provide a safety step locking structure for rail transit platforms to solve the problem mentioned in the background art that it cannot be adapted to train use, and to achieve a stable locking structure that is adapted to the independent step of the train.
[0008] 2. Technical Solution
[0009] A safety step locking structure for a rail transit platform includes a step frame;
[0010] A locking mechanism is fixedly installed on the bottom surface of the pedal frame. The locking mechanism includes a mounting frame that is fixedly connected to the pedal frame. A rotating plate is rotatably connected to the middle of the mounting frame. A linkage rod is rotatably connected to both ends of the rotating plate. A sliding rod is rotatably connected to the outer end of the linkage rod. A connecting rod is fixedly connected to the middle of the sliding rod. A locking frame is fixedly connected to the outer end of the connecting rod. The locking frame is slidably connected to the pedal frame, and the sliding rod is slidably connected to the mounting frame.
[0011] Preferably, an electric push rod is fixedly connected to the middle of the mounting frame, and the other end of the electric push rod is fixedly connected to a sliding rod.
[0012] By adopting the above technical solution, the design of the step platform frame with locking mechanism allows an electric push rod to drive a sliding rod to slide within the mounting frame when the step platform frame is placed. The sliding rod then drives a linkage rod and rotates a rotating plate. Subsequently, the rotating plate drives another linkage rod and the sliding rod to move synchronously. This ensures that the two sliding rods, along with the connecting rod and the locking frame at their ends, abut against the platform and the train respectively, thus guaranteeing the stable installation of the step platform frame. This also prevents slippage caused by impacts from people or objects, ensuring the stability of the step platform frame during use.
[0013] Preferably, the locking frame has two sliding pillars slidably connected to it, and the other end of the two sliding pillars is connected and fixed to a locking plate. A spring is connected and fixed to the locking plate, and the other end of the spring is connected and fixed to the locking frame. The spring and the sliding pillars are in sliding cooperation.
[0014] By adopting the above technical solution, after the locking frame moves, it can drive the locking plate to come into contact with the platform and the train. At this time, the spring and the sliding column will provide a certain buffer space for the locking plate and the locking frame, avoiding the rapid damage of the pedal caused by long-term rigid impact, and ensuring the service life of the pedal.
[0015] Preferably, two batteries are installed and fixed inside the pedal frame.
[0016] Preferably, one end of the pedal frame has a handhold slot.
[0017] 3. Beneficial effects
[0018] Compared to existing technologies, the advantages of this application are:
[0019] 1. This application, through the design of a footboard frame and locking mechanism, allows an electric push rod to drive a sliding rod to slide within the mounting frame when the footboard frame is placed. The sliding rod then drives a linkage rod, which in turn drives a rotating plate to rotate. Subsequently, the rotating plate drives another linkage rod and the sliding rod to move synchronously. This ensures that the two sliding rods, along with the connecting rod and the locking frame at their ends, abut against the platform and the train, respectively. This guarantees the stable installation of the footboard frame and prevents slippage caused by impacts from people or objects, thus ensuring the stability of the footboard frame during use.
[0020] 2. After the locking frame moves, this application can drive the locking plate to come into contact with the platform and the train. At this time, the spring and the sliding column will provide a certain buffer space for the locking plate and the locking frame, avoiding the rapid damage of the pedal caused by long-term rigid impact, and ensuring the service life of the pedal. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the rail transit platform safety step locking structure according to an embodiment of this application;
[0022] Figure 2 This is a schematic diagram of the locking mechanism of the rail transit platform safety pedal locking structure according to an embodiment of this application;
[0023] The following are the labels in the diagram: 1. Pedal frame; 2. Locking mechanism; 3. Mounting frame; 4. Rotating plate; 5. Linkage rod; 6. Sliding rod; 7. Connecting rod; 8. Locking frame; 9. Electric push rod; 10. Sliding column; 11. Locking plate; 12. Spring; 13. Battery; 14. Handheld slot. Detailed Implementation
[0024] The present application will be further described in detail below with reference to the accompanying drawings.
[0025] Reference Figure 1 and Figure 2 This application discloses a locking structure for a safety step on a rail transit platform. Step frame 1;
[0026] Locking mechanism 2 is fixedly installed on the bottom surface of pedal frame 1. Locking mechanism 2 includes mounting frame 3 which is fixedly connected to pedal frame 1. Rotating plate 4 is rotatably connected to the middle of mounting frame 3. Linkage rod 5 is rotatably connected to both ends of rotating plate 4. Sliding rod 6 is rotatably connected to the outer end of linkage rod 5. Connecting rod 7 is fixedly connected to the middle of sliding rod 6. Locking frame 8 is fixedly connected to the outer end of connecting rod 7. Locking frame 8 is slidably connected to pedal frame 1. Sliding rod 6 is slidably connected to mounting frame 3.
[0027] An electric push rod 9 is fixedly connected to the middle of the mounting frame 3, and the other end of the electric push rod 9 is fixedly connected to the sliding rod 6.
[0028] The design of the step platform 1 in conjunction with the locking mechanism 2 allows a sliding rod 6 to slide within the mounting frame 3 via an electric push rod 9 when the step platform 1 is in place. The sliding rod 6 then drives a linkage rod 5, which in turn drives a rotating plate 4 to rotate. Subsequently, the rotating plate 4 drives another linkage rod 5 and the sliding rod 6 to move synchronously. This ensures that the two sliding rods 6 drive the connecting rod 7 and its locking frame 8 at their ends to contact the platform and the train respectively, thus ensuring the stable installation of the step platform 1 and preventing slippage due to impacts from people or objects, thereby guaranteeing the stability of the step platform 1 in use.
[0029] Two sliding pillars 10 are slidably connected to the locking frame 8. The other end of the two sliding pillars 10 is connected and fixed to a locking plate 11. A spring 12 is connected and fixed to the locking plate 11. The other end of the spring 12 is connected and fixed to the locking frame 8. The spring 12 and the sliding pillars 10 slide in cooperation.
[0030] After the locking frame 8 moves, it can drive the locking plate 11 to come into contact with the platform and the train. At this time, the spring 12 and the sliding column 10 will provide a certain buffer space for the locking plate 11 and the locking frame 8, so as to avoid the rapid damage of the pedal caused by long-term rigid impact and ensure the service life of the pedal.
[0031] Two batteries 13 are installed and fixed inside the pedal frame 1.
[0032] One end of the pedal frame 1 has a hand slot 14.
[0033] The implementation principle of the safety step locking structure for rail transit platforms in this application embodiment is as follows: When the step frame 1 is placed, an electric push rod 9 drives a sliding rod 6 to slide within the mounting frame 3. Then, the sliding rod 6 drives a linkage rod 5 and a rotating plate 4 to rotate. Subsequently, the rotating plate 4 drives another linkage rod 5 and the sliding rod 6 to move synchronously. This ensures that the two sliding rods 6 drive the connecting rod 7 and its end locking frame 8. After the locking frame 8 moves, the locking plate 11 can be driven to abut against the platform and the train. At this time, the spring 12 and the sliding column 10 will provide a certain buffer space for the locking plate 11 and the locking frame 8, avoiding rapid damage to the step due to long-term rigid impact, thus ensuring the service life of the step. This ensures the stable construction of the step frame 1 and avoids slippage caused by impacts between people and objects, thus ensuring the stability of the step frame 1 in use.
Claims
1. A locking structure for safety steps on rail transit platforms, characterized in that: include pedal frame (1); The locking mechanism (2) is fixedly installed on the bottom surface of the pedal frame (1), and the locking mechanism (2) includes a mounting frame (3) that is fixedly connected to the pedal frame (1). A rotating plate (4) is rotatably connected to the middle of the mounting frame (3). A linkage rod (5) is rotatably connected to both ends of the rotating plate (4). A sliding rod (6) is rotatably connected to the outer end of the linkage rod (5). A connecting rod (7) is fixedly connected to the middle of the sliding rod (6). A locking frame (8) is fixedly connected to the outer end of the connecting rod (7). The locking frame (8) is slidably connected to the pedal frame (1), and the sliding rod (6) is slidably connected to the mounting frame (3).
2. The locking structure for safety steps on rail transit platforms according to claim 1, characterized in that: An electric push rod (9) is fixedly connected to the middle of the mounting frame (3), and the other end of the electric push rod (9) is fixedly connected to the sliding rod (6).
3. The locking structure for the safety step on a rail transit platform according to claim 1, characterized in that: Two sliding pillars (10) are slidably connected to the locking frame (8). A locking plate (11) is fixedly connected to the other end of the two sliding pillars (10). A spring (12) is fixedly connected to the locking plate (11). The other end of the spring (12) is fixedly connected to the locking frame (8). The spring (12) and the sliding pillars (10) slide in cooperation.
4. The locking structure for the safety step on a rail transit platform according to claim 1, characterized in that: Two batteries (13) are installed and fixed inside the pedal frame (1).
5. The locking structure for safety steps on rail transit platforms according to claim 1, characterized in that: The pedal frame (1) has a hand slot (14) at one end.