Steel rail fastener

Abstract

The utility model relates to the technical field of rail transit, in particular to a steel rail fastener, which comprises a fastener mechanism, a steel rail fastener and a fastener, the limiting mechanism slides on the bolt and can limit and buffer the fastener; and the compression-resistant mechanism slides on the bolt, is positioned above the limiting mechanism and can be used for buckling and pressing the steel rail. According to the utility model, the limiting block I and the limiting block II are matched with each other to limit the limiting seat, so that the limiting block III is accurately attached to the bottom of the steel rail, the displacement of the steel rail in the horizontal direction is effectively prevented, and a stable supporting foundation is provided for the steel rail; part of impact force generated when a train runs can be buffered, friction and abrasion between the sleeper and the limiting base are reduced, the service life of the sleeper and the service life of the limiting base are prolonged, and meanwhile the stability of the whole fastener system can be improved.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically a rail fastener. Background Technology

[0002] Rail fasteners, as one of the core components of railway track systems, play a crucial role in ensuring the safe and stable operation of railways. Type I elastic rail fasteners are widely used in railway construction. However, with the rapid development of railway transportation towards higher speeds and heavier loads, Type I elastic rail fasteners have some shortcomings and cannot effectively meet the ever-increasing demands of current railway operations.

[0003] Type I elastic rail fasteners suffer from insufficient fastening force. When trains are traveling at high speeds or under heavy loads, fasteners need to provide strong fastening force to ensure the rails are securely fixed to the sleepers. However, the fastening force of Type I elastic rail fasteners is not ideal, making the rails prone to displacement under strong external forces. The resistance provided by the limiting components is insufficient to completely prevent rail displacement, affecting track stability and posing a threat to train safety.

[0004] Meanwhile, the fastener's travel distance is too short. Train operation generates frequent and severe impacts and vibrations. A good travel distance allows the elastic clip to fully utilize its elasticity, effectively buffering these external forces and reducing wear on track components. However, due to its limited travel distance, this fastener cannot fully absorb energy, causing track components to be under high stress for extended periods, accelerating component damage and increasing maintenance costs and frequency. Utility Model Content

[0005] The purpose of this utility model is to provide a rail fastener to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rail fastener, comprising:

[0008] Fastening mechanism, including bolts that secure the sleeper;

[0009] The limiting mechanism slides on the bolt and can limit and buffer the fastener;

[0010] The anti-compression mechanism, which slides on the bolt and is located above the limiting mechanism, can clamp the rail.

[0011] The anti-loosening mechanism is fixed to the limiting mechanism and can limit the limiting mechanism and the anti-compression mechanism, and prevent loosening.

[0012] Furthermore, the limiting mechanism includes:

[0013] Limiting block one is fixed on the sleeper at the bolt side;

[0014] A buffer pad is laid on the sleeper on one side of the limiting block;

[0015] A limiting seat is slidably connected to the bolt, and a limiting block two is fixedly connected to one end of the limiting seat.

[0016] Preferably, the limiting mechanism includes:

[0017] Limiting block three is fixed to the other end of the limiting seat, and limiting block four is fixedly connected to the top wall of limiting block three.

[0018] Preferably, the compression-resistant mechanism includes:

[0019] A set of pads is provided, which are slidably connected to the outer wall of the bolt;

[0020] There are two curved elastic bars, which are fixedly connected to the outer walls of both ends of a set of pads. A block is fixedly connected to the outer wall of the curved elastic bar.

[0021] Preferably, the compression-resistant mechanism includes:

[0022] Arc-shaped spring bar two is fixed at one end of arc-shaped spring bar one;

[0023] One round rod is fixed between one end of a set of curved elastic bars;

[0024] The second round rod is fixed between one end of a set of two curved elastic bars.

[0025] Preferably, the compression-resistant mechanism includes:

[0026] The third round rod is fixed to the outer wall of the second curved elastic bar.

[0027] Preferably, the anti-loosening mechanism includes:

[0028] A square rod is fixedly connected to the outer wall of one side of the limiting seat. An elastic pad is fixedly connected to one end of the square rod, and a square block is fixedly connected to one end of the elastic pad.

[0029] The nut is fitted onto the outer wall of the bolt;

[0030] A ring washer is screwed into the outer wall of the bolt, and the outer wall of the ring washer has several slots at equal angles.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] 1. By cooperating with limit block one and limit block two, the limit seat is limited, thereby allowing limit block three to accurately adhere to the bottom of the rail, effectively preventing horizontal displacement of the rail and providing a stable support foundation for the rail. In addition, the buffer pad laid between the sleeper and the limit seat can buffer some of the impact force generated by the train running, reduce friction and wear between the sleeper and the limit seat, extend the service life of the sleeper and the limit seat, and also help improve the stability of the entire fastening system.

[0033] 2. The rail is clamped from different positions by round rod one and round rod two. Their combined action greatly increases the clamping force on the rail. Round rod one is located above round rod two, and round rod two is located near the bottom edge of the rail. This comprehensively and tightly fixes the rail to the sleeper, effectively preventing rail displacement under high-speed or heavy-load conditions, ensuring track stability and train safety. Furthermore, the arc-shaped elastic bar one has good elasticity. When the train generates impact and vibration, it can fully exert its elastic effect to buffer external forces and reduce the stress on various track components. This not only reduces the wear of components but also extends the service life of track components, reducing maintenance costs and frequency. In addition, when the rail sways significantly from side to side, round rod three can promptly abut against the outer wall of the limiting block four, limiting the sway amplitude of the rail, further improving track stability and ensuring train operation safety.

[0034] 3. By screwing the ring washer and bolt together, the limiting mechanism and the anti-compression mechanism are tightly fixed to the sleeper, so that round rod one and round rod two can stably and tightly adhere to the rubber pad, and the rubber pad adheres tightly to the rail, ensuring the overall stability of the fastening system. After the ring washer is tightened, the elastic washer rebounds and drives the square block two to engage with the slot on the nut, limiting the nut and preventing the ring washer from rotating and loosening. This ensures that the fastener remains tight during long-term use, avoiding the impact of loosening on the fastener's performance and the safety of the track. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the limiting block in this utility model;

[0037] Figure 3 This is a side view of the fastener mechanism in this utility model;

[0038] Figure 4 This is a schematic diagram of the anti-compression mechanism in this utility model;

[0039] Figure 5 This is a partial structural diagram of the anti-loosening mechanism in this utility model.

[0040] In the diagram: 100, Fastener mechanism; 110, Bolt; 200, Limiting mechanism; 220, Limiting block one; 230, Buffer pad; 240, Limiting seat; 241, Limiting block two; 242, Limiting block three; 243, Limiting block four; 300, Anti-compression mechanism; 310, Pad plate; 311, Arc-shaped elastic bar one; 312, Round rod one; 313, Arc-shaped elastic bar two; 314, Round rod two; 315, Round rod three; 320, Square block one; 400, Anti-loosening mechanism; 410, Square rod; 411, Elastic washer; 412, Square block two; 420, Ring washer; 421, Nut. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figure 1-5 In this embodiment of the utility model, a rail fastener includes: a fastener mechanism 100 including a bolt 110 fixed to a sleeper; a limiting mechanism 200 sliding on the bolt 110 and capable of limiting and buffering the fastener; a compression-resistant mechanism 300 sliding on the bolt 110 and located above the limiting mechanism 200 to compress the rail; and an anti-loosening mechanism 400 fixed to the limiting mechanism 200 and capable of limiting the limiting mechanism 200 and the compression-resistant mechanism 300 and preventing loosening. The limiting mechanism 200 includes... Includes: a limiting block 220 fixed on the sleeper and located on one side of the bolt 110; a buffer pad 230 laid on the sleeper and located on one side of the limiting block 220; a limiting seat 240 slidably connected to the bolt 110 and a limiting block 241 fixedly connected to one end of the limiting seat 240; a limiting block 3 242 fixed to the other end of the limiting seat 240 and a limiting block 4 243 fixedly connected to the top wall of the limiting block 3 242; the limiting seat 240 is limited by the cooperation of the limiting blocks 220 and 241.

[0043] The anti-compression mechanism 300 includes: a set of pads 310 that are slidably connected to the outer wall of bolts 110; two arc-shaped elastic bars 311 that are fixedly connected to the outer walls of both ends of the set of pads 310; a block 320 fixedly connected to the outer wall of the arc-shaped elastic bars 311; an arc-shaped elastic bar 313 fixed at one end of the arc-shaped elastic bars 311; a round rod 312 fixed between one end of the set of arc-shaped elastic bars 311; a round rod 314 fixed between one end of the set of arc-shaped elastic bars 313; and a round rod 315 fixed to the outer wall of the arc-shaped elastic bar 313. The round rods 312 and 314 clamp the rail from different positions, and their synergistic effect greatly increases the clamping force on the rail.

[0044] The anti-loosening mechanism 400 includes: a square rod 410 fixedly connected to the outer wall of one side of the limiting seat 240, and an elastic pad 411 fixedly connected to one end of the square rod 410; a square block 412 fixedly connected to one end of the elastic pad 411; a nut 421 sleeved on the outer wall of the bolt 110; and a ring washer 420 screwed onto the outer wall of the bolt 110, with several slots equally spaced on the outer wall of the ring washer 420. By screwing the ring washer 420 onto the bolt 110, the limiting mechanism 200 and the anti-compression mechanism 300 are tightly fixed on the sleeper, so that the round rod 312 and the round rod 314 can stably and tightly adhere to the rubber pad, and the rubber pad tightly adheres to the rail.

[0045] Specifically, during operation, first, bolts 110 and limiting block 220 are fixed on the sleeper. A buffer pad 230 is laid on the sleeper with one end against limiting block 220. Then, limiting seat 240 is slid along bolts 110 onto the buffer pad 230. The position is adjusted so that limiting block 241, fixed at one end of limiting seat 240, is tightly against limiting block 220, completing the initial limiting of limiting seat 240. Limiting block 242, fixed at the other end of limiting seat 240, is against the bottom of the rail to prevent rail deviation. Afterward, a rubber pad is placed at a designated position on the rail, and the anti-compression mechanism 300 is moved along bolts 110... Placed on the limiting seat 240, the pad 310 is slidably connected to the bolt 110. The bottom of the arc-shaped elastic strips 311 at both ends of the pad 310 is attached to the surface of the limiting seat 240. The position of the anti-compression mechanism 300 is adjusted so that the square block 320 fixed on the outer wall of the arc-shaped elastic strip 311 is attached to one side of the outer wall of the limiting block 241, thus limiting the anti-compression mechanism 300 to prevent shaking. A set of round rods 312 fixed at one end of the arc-shaped elastic strips 311 and arc-shaped elastic strips 313 fixed at the other end, and a set of round rods 314 fixed between the arc-shaped elastic strips 313 are respectively attached to the rubber pad. The round rods 312 and the round rods 314 are respectively attached to the rubber pad. The second 314 applies clamping pressure to the rail. Finally, pressing the elastic washer 411 causes it to deform, changing the position of the second block 412. The nut 421 is then placed on the bolt 110 and positioned on the outer wall of the uppermost washer 310. An electric wrench is used to twist the ring washer 420 to engage with the bolt 110, ensuring that the first round rod 312 and the second round rod 314 are tightly against the rubber pad, which in turn is tightly against the rail. The elastic washer 411 is then released, causing it to spring back and move the second block 412, engaging it with the corresponding slot on the nut 421. This limits the nut 421's position, preventing it from loosening due to rotation. When the train is moving... The rails are subjected to various external forces. The arc-shaped elastic clip 311 has good elasticity and can provide cushioning when the train generates impact and vibration, reducing the stress on the track components. The round rods 312 and 314 work together to clamp the rails, ensuring that the rails are firmly fixed on the sleepers. When the rails sway significantly to the left or right, the rails squeeze the round rods 314. The force on the round rods 314 causes a partial deformation of the arc-shaped elastic clip 311, which drives the round rod 315 to abut against the outer wall of the limiting block 243. With the clamping of the round rods 312 and 314, the swaying of the rails is further restricted, ensuring the stability of the track.

[0046] Example 1

[0047] like Figure 2-3As shown, in this embodiment, the limiting mechanism 200 includes: a limiting block 220 fixed on the sleeper and located on one side of the bolt 110; a buffer pad 230 laid on the sleeper and located on one side of the limiting block 220; a limiting seat 240 slidably connected to the bolt 110 and a limiting block 241 fixedly connected to one end of the limiting seat 240; and a limiting block 3 242 fixed to the other end of the limiting seat 240 and a limiting block 4 243 fixedly connected to the top wall of the limiting block 3 242.

[0048] In this embodiment, the limiting block 220 and the limiting block 241 cooperate to limit the limiting seat 240, thereby ensuring that the limiting block 242 accurately adheres to the bottom of the rail, effectively preventing the rail from shifting in the horizontal direction and providing a stable support foundation for the rail. Furthermore, the buffer pad 230 is laid between the sleeper and the limiting seat 240, which can buffer some of the impact force generated during train operation, reduce friction and wear between the sleeper and the limiting seat 240, extend the service life of the sleeper and the limiting seat 240, and also help improve the stability of the entire fastening system.

[0049] like Figure 3 As shown, in this embodiment, the anti-compression mechanism 300 includes: a set of pads 310 that are slidably connected to the outer wall of bolts 110; two arc-shaped spring bars 311 that are respectively fixedly connected to the outer walls of both ends of the set of pads 310; a block 320 fixedly connected to the outer wall of the arc-shaped spring bar 311; an arc-shaped spring bar 313 fixed at one end of the arc-shaped spring bar 311; a round rod 312 fixed between one end of the set of arc-shaped spring bars 311; a round rod 314 fixed between one end of the set of arc-shaped spring bars 313; and a round rod 315 fixed to the outer wall of the arc-shaped spring bar 313.

[0050] In practice, the rail is clamped from different positions by round rod 312 and round rod 314. The two work together to greatly increase the clamping force on the rail. Round rod 312 is located above round rod 314, and round rod 314 is located at the bottom edge of the rail, which secures the rail to the sleeper from all directions. This effectively prevents the rail from shifting under high-speed or heavy-load conditions, ensuring the stability of the track and the safety of train operation. In addition, the arc-shaped elastic bar 311 has good elasticity. When the train generates impact and vibration, it can give full play to its elastic function, buffer external forces, and reduce the stress on various track components. This not only reduces the wear of components, but also extends the service life of track components and reduces maintenance costs and frequency. Furthermore, when the rail sways significantly from side to side, round rod 315 can promptly abut against the outer wall of limit block 243 to limit the sway of the rail, further improving the stability of the track and ensuring the safety of train operation.

[0051] Example 2

[0052] like Figure 3 and Figure 5 As shown, in this embodiment, the anti-loosening mechanism 400 includes: a square rod 410 fixedly connected to the outer wall of one side of the limiting seat 240, and an elastic washer 411 fixedly connected to one end of the square rod 410; a square block 412 fixedly connected to one end of the elastic washer 411; a nut 421 sleeved on the outer wall of the bolt 110; and a ring washer 420 screwed onto the outer wall of the bolt 110, with several slots equally spaced on the outer wall of the ring washer 420.

[0053] In practice, by screwing the ring washer 420 onto the bolt 110, the limiting mechanism 200 and the anti-compression mechanism 300 are tightly fixed to the sleeper, so that the first round rod 312 and the second round rod 314 can stably and tightly adhere to the rubber pad, and the rubber pad adheres tightly to the rail, ensuring the overall stability of the fastening system. After the ring washer 420 is tightened, the elastic washer 411 rebounds and drives the second square block 412 to engage with the slot on the nut 421, limiting the nut 421 and preventing the ring washer 420 from rotating and loosening. This ensures that the fastener remains tight during long-term use and avoids affecting the performance of the fastener and the safety of the track due to loosening.

[0054] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rail fastening, characterised in that, include: Fastening mechanism (100) includes bolts (110) fixed to sleepers; The limiting mechanism (200) slides on the bolt (110) and can limit and buffer the fastener; The anti-compression mechanism (300) slides on the bolt (110) and is located above the limiting mechanism (200), and can clamp the rail; The anti-loosening mechanism (400) is fixed on the limiting mechanism (200) and can limit the limiting mechanism (200) and the anti-compression mechanism (300) and prevent loosening; The limiting mechanism (200) includes: Limiting block 1 (220) is fixed on the sleeper at one side of bolt (110); A buffer pad (230) is laid on the sleeper on one side of the limiting block (220); The limiting seat (240) is slidably connected to the bolt (110), and the limiting block (241) is fixedly connected to one end of the limiting seat (240). The compression-resistant mechanism (300) includes: A pad (310) is provided with a set of pads that are slidably connected to the outer wall of the bolt (110); Two curved spring bars (311) are provided, which are fixedly connected to the outer walls of the two ends of a set of pads (310), and a block (320) is fixedly connected to the outer wall of the curved spring bar (311). The anti-loosening mechanism (400) includes: A square rod (410) is fixedly connected to the outer wall of one side of the limiting seat (240). An elastic pad (411) is fixedly connected to one end of the square rod (410), and a square block (412) is fixedly connected to one end of the elastic pad (411). Nut (421) is sleeved on the outer wall of bolt (110); The ring washer (420) is screwed into the outer wall of the bolt (110), and the outer wall of the ring washer (420) has several slots at equal angles.

2. A rail fastening of claim 1 wherein, The limiting mechanism (200) includes: Limiting block three (242) is fixed to the other end of limiting seat (240), and limiting block four (243) is fixedly connected to the top wall of limiting block three (242).

3. A rail fastening of claim 1 wherein, The compression-resistant mechanism (300) includes: Arc-shaped spring bar two (313) is fixed at one end of arc-shaped spring bar one (311); A round rod (312) is fixed between one end of a set of arc-shaped elastic bars (311); Round rod two (314) is fixed between one end of a set of arc-shaped elastic bars two (313).

4. A rail fastening of claim 3 wherein, The compression-resistant mechanism (300) includes: Round rod three (315) is fixed on the outer wall of arc-shaped elastic bar two (313).

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