Groove type guard rail base plate device
By designing the main and auxiliary buckle structures and the buffer layer, the problems of inconvenient installation and slippage of the grooved guardrail pad device were solved, achieving rapid installation, stable fixation and shock absorption, thus improving the safety and comfort of train operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-03-06
AI Technical Summary
The existing trough-type guardrail pad device is difficult to install and adjust, inconvenient to install, and prone to sliding during train operation. It cannot effectively resist strong pressure and vibration, affecting train safety and comfort.
A grooved guardrail pad device was designed, which adopts a main buckle and auxiliary buckle structure, combined with anti-slip rubber pads, guide slopes and buffer layers. Through the cooperation of L-shaped main buckles and C-shaped elastic buckles, it can achieve quick installation and stable fixation, and the buffer layer absorbs vibration, enhancing wear resistance and shock absorption performance.
It enables rapid installation and secure fixing of the grooved guardrail, prevents slippage, reduces construction difficulty, improves installation efficiency and connection stability, enhances wear resistance and shock absorption performance, extends service life, and improves the safety and comfort of train operation.
Smart Images

Figure CN223974438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway track accessories technology, specifically a grooved rail guard plate device. Background Technology
[0002] In railway track systems, guard rail pads are crucial components ensuring the safe and stable operation of trains. Installed between the frog guard rail and the turnout sleeper, they not only provide a robust connection between the guard rail and the running rail, ensuring the accuracy of the guard rail flange groove width, but also withstand the immense pressure, impact, and vibration generated by moving trains, ensuring the safe and smooth passage of trains through special areas such as turnouts and frogs. As railway transportation develops towards high speed and heavy loads, the performance requirements for guard rail pads are becoming increasingly stringent.
[0003] Chinese Patent CN203034315U, "A Grooved Wear-Resistant Guard Rail for Railway Turnouts," discloses a grooved wear-resistant guard rail for railway turnouts. This guard rail features a grooved structure with an asymmetrical cross-section. The upper working edge is thicker to meet wear resistance requirements, while the lower supporting foot is thinner, connected by a web plate in the middle. The lateral dimension of the working edge smoothly increases from both ends towards the middle. Bolt holes are provided on the web plate, which is used to fix the guard rail to the guard rail pad using bolts and nuts. It is integrally rolled from alloy steel of a specific strength. While this guard rail has certain advantages in wear resistance and material usage, its structural design makes the installation and adjustment of the guard rail pad inconvenient when used in conjunction with the pad. Due to the asymmetrical grooved structure of the guard rail, precise alignment of the bolt holes is required when installing the guard rail pad, increasing construction difficulty and time costs.
[0004] In summary, there is a need to develop a grooved guardrail pad device that is easy to install, efficient, and versatile. Utility Model Content
[0005] To solve the above problems, the present invention adopts the following technical solution.
[0006] A grooved guardrail pad device includes a base plate, an L-shaped main buckle on the base plate, an auxiliary buckle on the inward side of the main buckle, the auxiliary buckle including a C-shaped elastic buckle with its opening facing the main buckle, a connecting plate on the bottom of the side of the C-shaped elastic buckle away from the main buckle, a through hole on the connecting plate corresponding to a threaded hole on the base plate, and anti-slip pads on the inner sides of both the main buckle and the C-shaped elastic buckle.
[0007] Preferably, the surface of the anti-slip pad is provided with anti-slip texture.
[0008] Preferably, the top of the inner side of the main buckle and the inner side of the opening of the C-shaped elastic buckle are both provided with guide slopes.
[0009] Preferably, the opening width of the C-type elastic buckle is slightly smaller than the bottom edge thickness of the grooved guard rail.
[0010] Preferably, the bottom of the base plate is provided with a buffer layer, which includes a dense layer, a honeycomb cavity layer and a gradient microporous layer arranged from top to bottom.
[0011] Preferably, the dense layer is a high-density polyurethane layer.
[0012] Preferably, the gradient microporous layer is made of foamed rubber material, and the pore size of the micropores gradually decreases from top to bottom.
[0013] Preferably, the through hole on the connecting plate is an elongated hole, and a locking block is provided on the inner side of the upper end of the C-shaped elastic buckle opening.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] I. This utility model achieves rapid installation and stable fixation of the grooved guard rail by setting a main buckle and an auxiliary buckle, avoiding the cumbersome operation and loosening problems of traditional bolt connection, and improving installation efficiency and connection stability.
[0016] Second, the design of the anti-slip rubber pad and anti-slip texture of this utility model effectively increases the friction with the grooved guard rail, preventing it from sliding during train operation and ensuring the safe operation of the track.
[0017] Third, the guide slope of this utility model facilitates the installation of the grooved guard rail and reduces the difficulty of construction.
[0018] Fourth, the design of the C-type elastic buckle opening width and the thickness of the bottom edge of the grooved guard rail, as well as the setting of the buckle block, further enhance the fixing effect on the grooved guard rail.
[0019] V. The buffer layer of this utility model adopts a layered structure design of dense layer, honeycomb cavity layer and gradient microporous layer. The dense layer provides good wear resistance and compressive strength, the honeycomb cavity layer can reduce the weight of the base plate and play a certain buffering role, and the gradient microporous layer effectively absorbs the vibration generated during train operation, significantly improves the shock absorption performance of the pad, extends the service life of the pad and track components, and improves the comfort of train operation.
[0020] VI. The elongated hole design on the connecting plate of this utility model allows for fine adjustment of the installation position of the C-type elastic buckle, improving the adaptability of the device. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;
[0023] Figure 3 This is a schematic diagram of the buffer layer structure of this utility model.
[0024] In the picture:
[0025] 1. Base plate; 11. Threaded hole; 12. Dense layer; 13. Honeycomb cavity layer; 14. Gradient microporous layer; 2. Main buckle; 21. Guide slope; 3. Auxiliary buckle; 31. C-type elastic buckle; 311. Guide slope; 312. Buckle block; 32. Connecting plate; 321. Through hole; 4. Bolt; 5. Anti-slip pad; 6. Groove guard rail; 61. Slot; 7. Fork sleeper. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0029] like Figure 1-3As shown, this utility model provides a grooved guardrail pad device, including a base plate 1. An L-shaped main buckle 2 is provided on the base plate 1. An auxiliary buckle 3 is provided on the inward-facing side of the main buckle 2. The auxiliary buckle 3 includes a C-shaped elastic buckle 31, the opening of which faces the main buckle 2. A connecting plate 32 is provided at the bottom of the side of the C-shaped elastic buckle 31 away from the main buckle 2. A through hole 321 is provided on the connecting plate 32, corresponding to a threaded hole 11 on the base plate 1. The auxiliary buckle 3 can be fixed to the base plate 1 by bolts 4 passing through the through hole 321 and the threaded hole 11. Anti-slip rubber pads 5 are provided on the inner surfaces of both the main buckle 2 and the C-shaped elastic buckle 31 to increase friction with the grooved guardrail 6 and prevent it from shaking.
[0030] Furthermore, the surface of the anti-slip pad 5 is provided with anti-slip texture to further enhance the anti-slip effect.
[0031] Furthermore, guide slopes 21 and 311 are provided on the top of the inner side of the main buckle 2 and the inner side of the opening of the C-shaped elastic buckle 31, so that the grooved guard rail 6 can be smoothly inserted into the buckle.
[0032] Furthermore, the opening width of the C-type elastic buckle 31 is slightly smaller than the bottom edge thickness of the grooved guard rail 6, so that the C-type elastic buckle 31 can be tightly engaged on the grooved guard rail 6, thereby improving the fixing effect.
[0033] Furthermore, a buffer layer is provided at the bottom of the base plate 1, the buffer layer comprising a dense layer 12, a honeycomb cavity layer 13 and a gradient microporous layer 14 arranged from top to bottom.
[0034] Furthermore, the dense layer 12 is a high-density polyurethane layer, which provides initial stiffness, disperses pressure, and has good wear resistance and compressive strength, and can withstand the pressure of the grooved guard rail 6 and the train.
[0035] Furthermore, the gradient microporous layer 14 is made of foamed rubber material, and the pore size of the micropores gradually decreases from top to bottom. This structural design gives the gradient microporous layer 14 good vibration damping performance. The bottom gradient microporous layer 14 gradually dissipates residual energy through changes in pore size, effectively absorbing vibrations generated during train operation.
[0036] Furthermore, the through hole 321 on the connecting plate 32 is an elongated hole, which facilitates fine adjustment of the position of the C-type elastic buckle 31 during installation; a locking block 312 is provided on the inner side of the upper end of the opening of the C-type elastic buckle 31, and the locking block 312 corresponds to the locking groove 61 provided on the upper surface of the bottom edge of the guard rail 6.
[0037] The working principle of the above technical solution is as follows:
[0038] When installing the grooved guard rail pad device, first place the base plate 1 in the corresponding position on the turnout sleeper 7. Then, align one end of the grooved guard rail 6 with the opening direction of the main buckle 2, and slowly place the grooved guard rail 6 onto the bottom edge of the main buckle 2 along the guide slope 21 on the inner side of the top of the inner side of the main buckle 2. Next, set the auxiliary buckle 3 on the bottom edge of the guard rail 6. Since the opening width of the C-type elastic buckle 31 is slightly smaller than the bottom edge thickness of the grooved guard rail 6, the C-type elastic buckle 31 will undergo elastic deformation during insertion. When the grooved guard rail 6 is fully inserted, the C-type elastic buckle 31 tightly holds the grooved guard rail 6. At the same time, the locking block 312 on the inner side of the upper end of the opening of the C-type elastic buckle 31 is locked in the locking groove 61 on the guard rail 6 to further prevent it from falling out. Finally, fix the auxiliary buckle 3 to the base plate 1 by passing the bolt 4 through the through hole 321 on the connecting plate 32 and the threaded hole 11 on the base plate 1, thus completing the installation of the grooved guard rail 6. If the position of the C-type elastic buckle 31 needs to be finely adjusted during installation, the bolt 4 can be loosened and the adjustment can be made using the elongated hole 321 on the connecting plate 32. After the adjustment is completed, the bolt 4 can be tightened again.
[0039] During train operation, the trough-shaped guard rail pad device bears the pressure transmitted by the trough-shaped guard rail 6 and the vibration generated by the train. The anti-slip rubber pads 5 on the inner sides of the main buckle 2 and auxiliary buckle 3, and their anti-slip textures, effectively prevent the trough-shaped guard rail 6 from sliding on the pad. The dense layer 12 of the base plate 1 bears the pressure from the trough-shaped guard rail 6 and the train, and its high-density polyurethane material ensures good wear resistance and pressure resistance. The honeycomb cavity layer 13 reduces the weight of the base plate 1 while providing a certain buffering effect against vibration. The gradient microporous layer 14 is made of foamed rubber material, and its microporous pore size structure, which gradually decreases from top to bottom, can effectively absorb vibrations of various frequencies generated during train operation, converting vibration energy into heat energy and other forms of energy for dissipation, thereby reducing the impact of vibration on other components of the track system and ensuring the safe and stable operation of the train.
[0040] When maintenance or replacement of parts is required for the grooved guard rail pad device, if the auxiliary clip 3 malfunctions, simply unscrew the fixing bolt 4 to remove the auxiliary clip 3 from the base plate 1 for replacement or repair. Since the through hole 321 on the connecting plate 32 is an elongated hole, it is also convenient to adjust the position of the new auxiliary clip 3 when replacing it.
[0041] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.
Claims
1. A channel guard rail pad device, characterized by, The utility model provides a bottom plate (1) is provided with L type main buckle (2) on the bottom plate (1), the inside of main buckle (2) is provided with auxiliary buckle (3), auxiliary buckle (3) includes C type elastic buckle (31), C type elastic buckle (31) opening is towards main buckle (2), the bottom of the side of C type elastic buckle (31) away from main buckle (2) is provided with connecting plate (32), connecting plate (32) is provided with through -hole (321), through -hole (321) corresponds with the threaded hole (11) of bottom plate (1) is provided, the inside of main buckle (2) and the inside of C type elastic buckle (31) all are provided with antiskid rubber pad (5).
2. A slot guard pad device according to claim 1, wherein The surface of the antiskid rubber pad (5) is provided with anti -skid line.
3. The slot guard pad apparatus of claim 1, wherein, The top end of the inside of the main buckle (2) and the inside of the opening of the C type elastic buckle (31) are both provided with a guide slope (21, 311).
4. The slot guard pad apparatus of claim 1, wherein, The opening width of the C type elastic buckle (31) is slightly smaller than the thickness of the bottom edge of the channel rail (6).
5. The slot guard pad apparatus of claim 1, wherein, The bottom plate (1) is provided with a buffer layer, and the buffer layer comprises a dense layer (12), a honeycomb cavity layer (13) and a gradient microporous layer (14) arranged from top to bottom.
6. A slot guard plate device according to claim 5, wherein The dense layer (12) is a high-density polyurethane layer.
7. A slot guard plate device according to claim 5, wherein The gradient microporous layer (14) is made of foamed rubber material, and the pore size of the micropores gradually decreases from top to bottom.
8. The slot guard pad apparatus of claim 1, wherein, The through-hole (321) on the connecting plate (32) is a long hole, the inside of the upper end of the opening of the C type elastic buckle (31) is provided with a clamping block (312), and the clamping block (312) corresponds to the clamping groove (61) provided on the upper surface of the bottom edge of the channel rail (6).
Citation Information
Patent Citations
Groove type wear-resistant guardrail used for railway turnout
CN203034315U