Split railcar pedal isolation lock
By adopting a split design and flattened layout, the problem of low space utilization of existing rail vehicle tread devices has been solved, achieving more efficient space utilization and a thinner tread structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING KANGNI MECHANICAL & ELECTRICAL
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-26
AI Technical Summary
The existing isolation and locking devices for rail vehicle treads occupy a large space, reducing the space utilization of the treads, and the stacking of components increases the thickness of the treads.
The design adopts a split-type design, separating the micro switch from the locking device, and reducing the number of grooves on the pull wire reel. The pull wire reel, locking stop, locking hook and other components are arranged in a flat layout, making full use of fragmented space.
The space utilization of the pedals has been improved, and the thickness of the pedals has been reduced, making the device more compact.
Smart Images

Figure CN224409249U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urban rail vehicle door systems, and in particular to a separate isolation and locking device for rail vehicle pedals. Background Technology
[0002] Existing rail vehicle tread isolation and locking devices, as a single unit, can achieve unlocking, locking, and isolation functions, exhibiting high integration. However, they occupy a large space, resulting in low overall tread utilization.
[0003] 1. Due to the large size of the micro switch and the high degree of integration of the isolation and locking device, it requires a large space, reducing the space utilization of the pedal.
[0004] 2. The existing isolation locking device has overlapping components such as the pull cable reel, lock stop, and lock hook, and the pull cable reel has a large number of grooves, resulting in a large overall height and increased pedal thickness.
[0005] Therefore, it is necessary to develop new isolation and locking devices to overcome the above problems. Utility Model Content
[0006] Purpose of the utility model: To address the shortcomings and defects of the existing technology, this utility model provides a split-type isolation and locking device for rail vehicle pedals. It adopts a split design, separating a micro switch from the locking device, allowing them to be arranged separately, making full use of fragmented space and improving space utilization; it also reduces the number of grooves on the pull cable reel, avoiding excessive stacking of components such as the pull cable reel, locking stop, and locking hook in the height direction, achieving unlocking and locking functions as flat as possible, and allowing for a lower pedal thickness.
[0007] Technical Solution: This utility model discloses a split-type isolation and locking device for a rail vehicle pedal, characterized in that it includes an isolation and locking functional component, a reversing and switching component, a wire rope for manual operation, and a locking buckle for triggering; the isolation and locking functional component includes an isolation and locking bracket, an unlocking component, an isolation component, a locking stop component, a locking hook component, an unlocking switch, an electromagnet, and several limit pins, wherein the unlocking component, isolation component, locking stop component, locking hook component, unlocking switch, and electromagnet are mounted on the isolation and locking bracket; the reversing and switching component includes a reversing bracket, an unlocking linkage component, an isolation linkage component, and an isolation switch, wherein the unlocking linkage component, isolation linkage component, and isolation switch are mounted on the reversing bracket; the locking buckle is connected to the movable pedal of the rail vehicle.
[0008] The unlocking component is provided with an unlocking pull plate and an unlocking cam that are fixedly connected, and the unlocking pull plate has a groove.
[0009] The isolation component is provided with an isolation pull-line disc and an isolation cam that are fixedly connected, and the isolation pull-line disc is provided with a groove.
[0010] The locking assembly includes a locking body and a locking trigger wheel.
[0011] The unlocking linkage component is equipped with an unlocking linkage pull plate, which has 2-3 grooves.
[0012] The isolation linkage component is provided with an isolation linkage pull plate and an isolation linkage cam that are fixedly connected, and the isolation linkage pull plate has two grooves.
[0013] The steel wire rope is provided with an unlocking linkage steel wire rope and an isolation linkage steel wire rope. The unlocking linkage steel wire rope connects the unlocking component and the unlocking linkage component, and the isolation linkage steel wire rope connects the isolation component and the isolation linkage component.
[0014] The unlocking component, isolation component, locking component, locking hook component, unlocking linkage component, and isolation linkage component are all equipped with torsion springs for self-resetting; the unlocking component and isolation component are limited by limit pins.
[0015] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The split isolation and locking device of the present invention is more flexible in spatial arrangement, can make full use of fragmented space, and improve the utilization rate of pedal space; the flat arrangement of components such as pull cable disc, locking stop, and locking hook makes the pedal thickness lower. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the locking function component of this utility model;
[0018] Figure 3 This is a schematic diagram of the commutation and switching components of this utility model;
[0019] In the diagram, 1 is the isolation and locking functional component; 11 is the isolation and locking bracket; 12 is the unlocking component; 13 is the isolation component; 14 is the locking block component; 15 is the locking hook component; 16 is the unlocking switch; 17 is the electromagnet; 2 is the reversing and switching component; 21 is the reversing bracket; 22 is the unlocking linkage component; 23 is the isolation linkage component; 24 is the isolation switch; 31 is the unlocking linkage wire rope; 32 is the isolation linkage wire rope; and 4 is the buckle. Detailed Implementation
[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0021] This utility model discloses a split-type isolation and locking device for rail vehicle pedals, comprising an isolation and locking functional component 1, a reversing and switching component 2, a steel wire rope for manual operation, and a locking buckle 4 for triggering. The isolation and locking functional component 1 includes an isolation and locking bracket 11, an unlocking component 12, an isolation component 13, a locking stop component 14, a locking hook component 15, an unlocking switch 16, an electromagnet 17, and several limit pins. The unlocking component 12, the isolation component 13, the locking stop component 14, the locking hook component 15, the unlocking switch 16, and the electromagnet 17 are mounted on the isolation and locking bracket 11. The reversing and switching component 2 includes a reversing bracket 21, an unlocking linkage component 22, an isolation linkage component 23, and an isolation switch 24. The unlocking linkage component 22, the isolation linkage component 23, and the isolation switch 24 are mounted on the reversing bracket 21. The locking buckle 4 is connected to the movable pedal of the rail vehicle.
[0022] The unlocking component 12 of this utility model has an unlocking pull cable and an unlocking cam fixedly connected, and the unlocking pull cable has one groove. The isolation component 13 has an isolation pull cable and an isolation cam fixedly connected, and the isolation pull cable has one groove. The locking component 14 has a locking body and a locking trigger wheel. The unlocking linkage component 22 has an unlocking linkage pull cable, and the unlocking linkage pull cable has 2-3 grooves. The isolation linkage component 23 has an isolation linkage pull cable and an isolation linkage cam fixedly connected, and the isolation linkage pull cable has 2 grooves. The steel wire rope includes an unlocking linkage steel wire rope 31 and an isolation linkage steel wire rope 32. The unlocking linkage steel wire rope 31 connects the unlocking component 12 and the unlocking linkage component 22, and the isolation linkage steel wire rope 32 connects the isolation component 13 and the isolation linkage component 23. The unlocking component 12, the isolation component 13, the locking component 14, the locking hook component 15, the unlocking linkage component 22, and the isolation linkage component 23 are all equipped with torsion springs for self-resetting; the unlocking component 12 and the isolation component 13 are limited by limit pins.
[0023] Mechanical locking function: Electromagnet 17 is not energized and can extend and retract freely. When the movable pedal retracts, the locking hook assembly 15 rotates clockwise due to the collision with the latch 4, pushing the locking stop assembly 14 to swing counterclockwise and then reset. The step of the locking stop assembly 14 jams the locking hook assembly 15, preventing it from rotating counterclockwise, thus preventing the latch 4 from extending and achieving the locking function. The unlocking switch 16 is triggered, receiving an electrical signal indicating that the lock is in place.
[0024] Electric unlocking function: When the electromagnet 17 is energized, it retracts; when the locking component 14 rotates counterclockwise, the locking hook component 15 is not restricted by the locking component 14 and can rotate freely; the latch 4 can extend freely, thus realizing the unlocking function. The unlocking switch 16 is deactivated and receives an unlocking electrical signal.
[0025] Manual unlocking function: When the unlocking linkage component 22 rotates clockwise, the unlocking linkage wire rope 31 pulls the unlocking pull plate on the unlocking component 12, the unlocking cam pushes the locking trigger wheel on the locking component 14, and the locking component 14 rotates counterclockwise to realize the unlocking function and obtain the unlocking electrical signal.
[0026] Manual isolation function: When the pedal assembly is in the locked state, the isolation linkage assembly 23 rotates clockwise, the isolation linkage wire rope 32 pulls the isolation pull coil on the isolation assembly 13, and the isolation cam pushes the locking trigger wheel on the locking assembly 14. The locking assembly 14 cannot rotate counterclockwise, and the lock 4 cannot extend. At this time, even if the electromagnet 17 is energized, it still cannot pull the locking assembly 14, thus achieving the isolation function. At the same time, the isolation trigger pull coil of the isolation trigger assembly 23 rotates, and the isolation trigger cam triggers the isolation switch 24, obtaining an isolation electrical signal.
Claims
1. A separate isolation and locking device for a rail vehicle's pedal, characterized in that: The system includes an isolation locking function component (1), a reversing and switching component (2), a wire rope for manual operation, and a locking buckle (4) for triggering. The isolation locking function component (1) includes an isolation locking bracket (11), an unlocking component (12), an isolation component (13), a locking block component (14), a locking hook component (15), an unlocking switch (16), an electromagnet (17), and several limit pins. The unlocking component (12), the isolation component (13), the locking block component (14), the locking hook component (15), the unlocking switch (16), and the electromagnet (17) are mounted on the isolation locking bracket (11). The reversing and switching component (2) includes a reversing bracket (21), an unlocking linkage component (22), an isolation linkage component (23), and an isolation switch (24). The unlocking linkage component (22), the isolation linkage component (23), and the isolation switch (24) are mounted on the reversing bracket (21). The locking buckle (4) is connected to the movable pedal of the rail vehicle.
2. The separate isolation and locking device for rail vehicle pedals according to claim 1, characterized in that: The unlocking component (12) is provided with an unlocking pull plate and an unlocking cam that are fixedly connected, and the unlocking pull plate is provided with a groove.
3. The separate isolation and locking device for rail vehicle pedals according to claim 1, characterized in that: The isolation component (13) is provided with an isolation pull plate and an isolation cam that are fixedly connected, and the isolation pull plate is provided with a groove.
4. The separate isolation and locking device for rail vehicle pedals according to claim 1, characterized in that: The locking assembly (14) is provided with a locking body and a locking trigger wheel.
5. The separate isolation and locking device for rail vehicle pedals according to claim 1, characterized in that: The unlocking linkage component (22) is equipped with an unlocking linkage pull plate, which has 2-3 grooves.
6. The separate isolation and locking device for rail vehicle pedals according to claim 1, characterized in that: The isolation linkage component (23) is provided with an isolation linkage pull plate and an isolation linkage cam that are fixedly connected, and the isolation linkage pull plate is provided with two grooves.
7. The separate isolation and locking device for rail vehicle pedals according to claim 1, characterized in that: The steel wire rope is provided with an unlocking linkage steel wire rope (31) and an isolation linkage steel wire rope (32). The unlocking linkage steel wire rope (31) connects the unlocking component (12) and the unlocking linkage component (22), and the isolation linkage steel wire rope (32) connects the isolation component (13) and the isolation linkage component (23).
8. The separate isolation and locking device for rail vehicle pedals according to claim 1, characterized in that: The unlocking component (12), isolation component (13), locking component (14), locking hook component (15), unlocking linkage component (22), and isolation linkage component (23) are all equipped with torsion springs for self-resetting; the unlocking component (12) and isolation component (13) are limited by limiting pins.