一种铁路停车锁闭装置
By installing replaceable wear-resistant linings and color-coded warning layers on the surface of the lock hook, the problem of incomplete locking caused by lock hook wear is solved, reducing maintenance costs and improving maintenance efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-17
AI Technical Summary
The locking hooks of existing railway turnout external locking devices are worn due to long-term, high-frequency impacts and friction, which may lead to incomplete locking and excessive gaps, seriously threatening traffic safety.
Replaceable wear-resistant linings are provided on the surface of the lock hook, and the linings are connected by a flexible plug and limit engagement fixing method. The linings can be replaced independently after they are worn, avoiding the need to replace the entire core component. A color warning layer is provided on the surface of the lock hook to indicate the degree of wear.
It reduces maintenance costs and material consumption, improves maintenance efficiency, ensures stable connection of linings under vibration, promptly judges wear status, avoids locking failure, and ensures driving safety.
Smart Images
Figure CN224511132U_ABST
Abstract
Claims
1. A railway parking locking device, comprising a locking rod (1) and a switch rail connecting iron (2), wherein both ends of the locking rod (1) are laterally slidably connected to a locking frame (3) via sliding columns, and the inner ends of the front and rear walls of the switch rail connecting iron (2) are rotatably connected to a fixing rod (4) via bearings, and the outer arc surface of the fixing rod (4) is slidably connected to a locking hook (5), characterized in that: The surface of the locking hook (5) is provided with a liner (6), and the locking hook (5) and the liner (6) are connected by a mounting assembly (7); The mounting assembly (7) includes a fixing block (701) and a fixing plate (702). The fixing block (701) is fixedly installed on the side of the locking hook (5), and the fixing plate (702) is fixedly installed on the side of the liner (6). The surface of the fixing block (701) is provided with a fixing groove (703). A pin (704) is inserted into the surface of the fixing block (701). A tension spring (705) is sleeved on the surface of the pin (704). A pull plate (706) is fixedly installed at one end of the pin (704).
2. The railroad parking lock of claim 1, wherein: There are four sets of fixing blocks (701), and the four sets of fixing blocks (701) are symmetrically installed on both sides of the locking hook (5).
3. Railway parking locking device according to claim 2, characterized in that There are four sets of fixing plates (702), and the four sets of fixing plates (702) are symmetrically installed on both sides of the liner (6).
4. Railway parking locking device according to claim 3, characterized in that The positions of the four sets of fixing blocks (701) and the four sets of fixing plates (702) correspond to each other.
5. The railway parking locking device according to claim 4, characterized in that: One end of the tension spring (705) is fixedly connected to the side of the pull plate (706), and the other end of the tension spring (705) is fixedly connected to the side of the fixing block (701).
6. The railway parking locking device according to claim 5, characterized in that: A limiting rod (707) is fixedly installed on the side of the locking hook (5), and a limiting plate (708) is fixedly installed on the side of the liner (6). A limiting groove (709) is formed on the surface of the limiting plate (708).
7. Railway parking locking device according to claim 6, characterized in that The limiting plate (708) is installed on the longitudinal central axis of the liner (6), and the shape and size of the limiting groove (709) and the limiting rod (707) are matched.
8. The railway parking locking device according to claim 7, characterized in that: The surface of the locking hook (5) is provided with a number of grooves (8), wherein three grooves (8) form a group, and the depth of a group of grooves (8) decreases sequentially.
9. Railway parking locking device according to claim 8, characterized in that The inner walls of several of the grooves (8) are coated with a warning layer, which is green, yellow and red respectively, depending on the depth of the groove (8).