Sleeper fixing device for railway engineering

Abstract

The utility model relates to the technical field of railway engineering, in particular to a sleeper fixing device for railway engineering, which comprises a sleeper, a pressure dividing plate, a connecting rod, an embedded screw, a nylon plate seat and the like. The two pressure dividing plates are embedded in the ballast, the sleepers are connected to the front sides and the rear sides of the pressure dividing plates in a clamped mode, the steel rails are connected to the left sides and the right sides of the sleepers in a clamped mode, the two connecting rods are connected to the bottoms of the sleepers and connected with the pressure dividing plates in an inserted mode, and the two embedded screws are connected to the left sides and the right sides of the sleepers. The left side and the right side of the sleeper are each slidably connected with two nylon plate bases. The steel rail fixing device is provided with the gauge baffles and the nylon plate seats, the gauge baffles and the nylon plate seats can effectively disperse pressure and vibration borne by the steel rail, the local stress concentration phenomenon is reduced, all assemblies of the fixing device can be protected against excessive abrasion, the fatigue damage risk caused by stress concentration can be reduced, and the service life of the steel rail fixing device is prolonged. Therefore, the service life of the fixing device is prolonged, and the requirement for frequent maintenance is lowered.

Description

Technical Field

[0001] This utility model relates to the field of railway engineering technology, and in particular to a railway sleeper fixing device. Background Technology

[0002] In railway track systems, sleepers play a crucial role in supporting the rails. Their main functions are to maintain a constant distance between the two rails and to evenly distribute the load from the train onto the roadbed. As an important component of the sleeper, the fixing device not only ensures a tight connection between the sleeper and the rail but also directly affects the geometric accuracy, traffic safety, and long-term maintenance costs of the entire track system.

[0003] Traditional sleeper fixing devices typically consist of bolts, fasteners, and baffles, mechanically locking the rails to the sleepers. However, they have weak vibration resistance and anti-loosening capabilities. Vibrations generated during train operation can easily cause bolts to loosen. The single-layer fastening structure struggles to maintain a constant locking force, requiring frequent manual re-tightening, increasing maintenance burden. Under temperature changes or external forces, the thermal expansion and contraction of the rails and lateral pressure can easily cause localized stress concentration in the fixing devices, accelerating component fatigue and even triggering track geometric deformation. Furthermore, they have poor environmental adaptability; exposed fastening components are susceptible to corrosion from rain and dust, leading to rust or jamming. Especially in humid, high-salt, or high-temperature-difference areas, the lifespan of the rails can be significantly shortened. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a railway sleeper fixing device.

[0005] A railway sleeper fixing device includes a sleeper, a pressure plate, a connecting rod, a pre-embedded screw, a nut, washers, A-type elastic clips, and nylon plate seats. Two pressure plates are pre-embedded in the ballast. Sleepers are snapped onto both the front and rear sides of each pressure plate, and rails are snapped onto both the left and right sides of each sleeper. Two connecting rods are connected to the bottom of each sleeper, and these connecting rods are inserted into the pressure plates. Two pre-embedded screws are connected to both the left and right sides of each sleeper. Two nylon plate seats are slidably connected to both the left and right sides of each sleeper, and the pre-embedded screws penetrate the nylon plate seats. Two washers and a nut are threaded onto each pre-embedded screw, and an A-type elastic clip is installed on each pre-embedded screw, with the A-type elastic clip positioned between two washers. The rail is positioned between two A-type elastic clips.

[0006] As a preferred option, the system also includes gauge baffles, with gauge baffles snapped onto the nylon plate bases, and the rails snapped onto the gauge baffles.

[0007] As a preferred option, it also includes pre-embedded blocks, with four pre-embedded blocks connected to both the left and right sides of the sleeper. The pre-embedded blocks are arranged symmetrically front and back, and the nylon plate seats are located between the front and back pre-embedded blocks.

[0008] As a preferred option, it also includes rubber pads, with rubber pads snapped onto both sides of the sleeper, and the rubber pads are located between the rail and the sleeper.

[0009] Preferably, it also includes rubber rings, with rubber rings attached to the outer wall of the connecting rod.

[0010] As a preferred embodiment, it also includes a cap and a protective plate. The cap is snapped onto the nut, and the protective plate is rotatably connected to the outer wall of the cap. Both protective plates are snapped onto the rail.

[0011] The beneficial effects of this utility model are as follows: This utility model is equipped with a gauge baffle and a nylon plate seat. The gauge baffle and the nylon plate seat can effectively disperse the pressure and vibration on the rail, reduce the phenomenon of local stress concentration, not only help protect the various components of this fixing device from excessive wear, but also reduce the risk of fatigue damage caused by stress concentration, thereby extending the service life of this fixing device and reducing the need for frequent maintenance. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the sleeper, cap, and protective plate of this utility model.

[0014] Figure 3 This is a three-dimensional structural diagram of the cap, protective plate, and embedded screw of this utility model.

[0015] Figure 4 This is a three-dimensional structural diagram of the embedded screw, embedded stop block, and nut of this utility model.

[0016] Figure 5 This is a three-dimensional structural cross-sectional view of the gasket, A-type elastic bar, and gauge baffle of this utility model.

[0017] Figure 6 This is a three-dimensional cross-sectional view of the sleeper, connecting rod, and rubber ring of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1-Sleeper, 2-Pressure plate, 21-Connecting rod, 22-Rubber ring, 3-Cap, 4-Protective plate, 5-Embedded screw, 6-Embedded stop block, 7-Nut, 8-Washer, 9-Type A elastic strip, 10-Gap baffle, 11-Nylon plate seat, 12-Rubber pad. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] A railway sleeper fixing device, such as Figures 1-6As shown, the track includes sleeper 1, pressure plate 2, connecting rod 21, embedded screw 5, nut 7, washer 8, A-type elastic strip 9, nylon plate seat 11, gauge baffle 10, embedded blocking block 6, rubber pad 12, rubber ring 22, cap 3, and protective plate 4. Pressure plate 2 is embedded in the ballast. There are two pressure plates 2. Sleepers 1 are snapped onto both the front and rear sides of pressure plate 2. Rails are snapped onto both the left and right sides of sleeper 1. Two connecting rods 21 are fixedly connected to the bottom of sleeper 1, and each connecting rod 21 is inserted into pressure plate 2. Two connecting rods 21 are fixedly connected to the top of sleeper 1 on both the left and right sides. The pre-embedded screw rods 5 are slidably connected to two nylon plate seats 11 on both sides of the sleeper 1. Each pre-embedded screw rod 5 passes through one of the nylon plate seats 11. Two washers 8 and a nut 7 are threaded onto each pre-embedded screw rod 5. Type A elastic clips 9 are installed on each pre-embedded screw rod 5, positioned between the two washers 8. The rail is positioned between the two Type A elastic clips 9. Track gauge baffles 10 are snap-fitted onto each nylon plate seat 11, and the rail is snap-fitted into each track gauge baffle 10. Four pre-embedded blocking blocks 6 are fixedly connected to both sides of the sleeper 1, symmetrically arranged front and back. The nylon plate seats 11 are all positioned... Between the front and rear embedded blocking blocks 6, the embedded blocking blocks 6 can limit the nylon plate seat 11, preventing the nylon plate seat 11 from shifting, and facilitating the positioning and installation of the nylon plate seat 11. Rubber pads 12 are snapped onto both sides of the sleeper 1. The rubber pads 12 are located between the rail and the sleeper 1. The rubber pads 12 can increase the friction between the rail and the sleeper 1, ensuring that the rail can distribute stress on the sleeper 1. The rubber pads 12 and the nylon plate seat 11 can absorb and buffer the vibration generated during train operation to a certain extent, further improving the vibration resistance of this fixing device and reducing... To reduce the possibility of nut 7 loosening and improve the overall stability of the fixing device, rubber rings 22 are fixedly connected to the outer wall of the connecting rod 21. The rubber rings 22 can increase the friction between the connecting rod 21 and the pressure plate 2, preventing the sleeper 1 from loosening from the pressure plate 2 when the train passes. A cap 3 is snapped onto the nut 7, and a protective plate 4 is rotatably connected to the outer wall of the cap 3. The protective plate 4 is snapped onto the rail. The cap 3 can protect the nut 7, and the protective plate 4 can prevent the gasket 8, A-type elastic strip 9, gauge baffle 10 and nylon plate seat 11 from being corroded or stuck by rainwater and sand.

[0021] When assembling the rails, first connect the sleeper 1 to the pressure plate 2 via connecting rods 21, with the connecting rods 21 inserted into the pressure plate 2. Then, attach the rubber pads 12 to the left and right sides of the sleeper 1. Pass the nylon plate seat 11 through the pre-embedded screws 5, securing it between the front and rear pre-embedded blocks 6. Attach the rail to the sleeper 1, ensuring it is tightly against the rubber pads 12. Finally, pass the gauge baffle 10 through the pre-embedded screws 5, securing it to the nylon plate seat 11 and the rail. Two washers 8 are threaded onto the pre-embedded screw rod 5. A-type spring clips 9 are passed through the pre-embedded screw rod 5, ensuring they are positioned between the two washers 8. The nut 7 rotates on the threaded connection of the pre-embedded screw rod 5, locking the washers 8. This fixes the A-type spring clips 9 between the two washers 8. The washers 8 and the gauge baffle 10 prevent displacement of the washers 8. Finally, the cap 3 is secured to the nut 7, preventing rotation. The guard plate 4 is used to engage with the rail, thus completing the installation of this fixing device. When maintenance is required on the sleeper 1, remove the cap 3, reverse and remove the nut 7, and then remove the washer 8, A-type elastic strip 9, gauge baffle 10 and nylon plate seat 11. This removes the fixing device, and then the sleeper 1 can be maintained. When installing the sleeper 1 at a rail bend, the pressure plate 2 is not set. The sleeper 1 is directly fixed in the ballast, and then the fixing device is installed according to the above steps. The gauge baffle 10 and nylon plate seat 11 can effectively disperse the pressure and vibration on the rail, reducing local stress concentration. This not only helps protect the various components of this fixing device from excessive wear, but also reduces the risk of fatigue damage caused by stress concentration, thereby extending the service life of this fixing device and reducing the need for frequent maintenance. By effectively dispersing stress, the gauge baffle 10 and nylon plate seat 11 can ensure that the rail maintains the correct geometry and remains stable even under temperature changes or external forces.

[0022] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A railway sleeper fixing device, characterized in that, The utility model provides a rail sleeper (1), the pressure distribution board (2), connecting rod (21), preburied screw rod (5), nut (7), gasket (8), A type elastic strip (9) and nylon plate seat (11) are included, the pressure distribution board (2) is preburied in ballast, the quantity of pressure distribution board (2) is two, the pressure distribution board (2) is connected with rail sleeper (1) in front and back both sides clamping, rail sleeper (1) both sides clamping is connected with steel rail, rail sleeper (1) bottom is connected with two connecting rod (21), connecting rod (21) is inserted with pressure distribution board (2) and connects, rail sleeper (1) both sides are connected with two preburied screw rod (5), rail sleeper (1) both sides are slidably connected with two nylon plate seat (11), preburied screw rod (5) all penetrates nylon plate seat (11), preburied screw rod (5) all is connected with two gasket (8) and a nut (7) on the screw thread, preburied screw rod (5) all is installed A type elastic strip (9), A type elastic strip (9) all are located between two gasket (8), steel rail is located between two A type elastic strip (9).

2. The railroad tie fixing device according to claim 1, wherein Still include the gauge baffle (10), the nylon plate seat (11) all are connected with gauge baffle (10) in clamping, steel rail all are connected with gauge baffle (10) in clamping.

3. A railroad tie fixing device for railroad maintenance according to claim 2, wherein Still include preburied resistance block (6), rail sleeper (1) both sides are connected with four preburied resistance block (6), preburied resistance block (6) all are symmetrically arranged in front and back, and the nylon plate seat (11) is located between the preburied resistance block (6) in front and back.

4. The railroad tie fastening device of claim 3, wherein: Still include rubber pad (12), rail sleeper (1) both sides are connected with rubber pad (12) in clamping, and the rubber pad (12) is located between steel rail and rail sleeper (1).

5. A railroad tie fastening device according to claim 4, wherein Still include rubber ring (22), connecting rod (21) outer wall all are connected with rubber ring (22).

6. A railroad tie fastening device for railroad maintenance according to claim 5, wherein Still include cap (3) and guard plate (4), nut (7) is connected with cap (3) in clamping, cap (3) outer wall rotatably connected with guard plate (4), and guard plate (4) all are connected with steel rail in clamping.

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