Track fastener with adjustable prestress

Abstract

The utility model relates to the technical field of track fastening, in particular to a track fastener with adjustable prestress. According to the technical scheme, the concrete sleeper comprises a cement sleeper body and metal rails arranged at the two ends of the cement sleeper body, mounting grooves are formed in the two ends of the cement sleeper body, a pair of screw spikes is arranged in each mounting groove, the concrete sleeper further comprises rubber pads movably arranged in the mounting grooves, and clamping grooves are formed in the two ends of each rubber pad. According to the rail fastener, the metal rail, the screw spikes, the rubber pad, the adjusting abutting plate, the fastening mechanism and other structures are matched, the rail fastener adopts an integrated design to fuse a plurality of assemblies into a single component, and the link that each component needs to be independently processed during installation is omitted; even a worker with relatively few experiences can complete the installation task in a short time, so that a large amount of time is saved, and especially during large-scale construction, the overall operation efficiency can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of track fastening technology, and in particular to prestressed adjustable track fasteners. Background Technology

[0002] Track fasteners are components used to secure railway tracks to the track foundation, also known as sleepers. One common method of securing tracks is by installing track fasteners on spiral spikes. However, traditional track fasteners typically require multiple components working together to adjust prestress. When using multiple components, they must be operated in a specific sequence, and each component must be correctly installed and adjusted. This process is cumbersome and requires a high level of skill. Such track fasteners not only increase the difficulty of operation for workers but also extend construction time. Utility Model Content

[0003] The purpose of this invention is to address the problem that traditional track fasteners, when adjusting prestress, involve a cumbersome process requiring high skill levels when multiple components are used together. Such track fasteners not only increase the difficulty of operation for workers but also prolong construction time. This invention proposes an adjustable prestress track fastener.

[0004] The technical solution of this utility model is as follows: a prestressed adjustable track fastener, including cement sleepers and metal rails set at both ends of the cement sleepers. Each end of the cement sleeper has an installation groove, and each installation groove has a pair of spiral rail spikes. The fastener also includes: a rubber pad movably set in the installation groove, each end of the rubber pad having a locking groove, and each locking groove having an adjusting plate that is fitted onto the spiral rail spikes and abuts against the bottom of the metal rail; and a fastening mechanism set on the adjusting plate and used to fix the bottom of the metal rail.

[0005] Optionally, the fastening mechanism includes telescopic grooves formed on both ends of the adjusting plate. Each telescopic groove is movably connected with an L-shaped abutment rod. The connecting ends of each L-shaped abutment rod are fixedly connected with abutment sleeves that engage with the spiral rail spikes. Each abutment sleeve has an adjusting nut that is spirally fitted with the spiral rail spikes at its top. The bottom of each L-shaped abutment rod is fixedly connected with multiple U-shaped rods arranged in a linear pattern that abut against the upper surface of the adjusting plate.

[0006] Optionally, the fastening mechanism further includes a base plate fixedly connected to the bottom end of the L-shaped abutment. A pair of connecting springs are provided inside the slot. One end of each connecting spring is fixedly connected to the inner wall of the slot, and the other end of each connecting spring is fixedly connected to the corresponding upper base plate.

[0007] Optionally, the rubber pad is further provided with abutment pads at both ends that tightly abut against the inner wall of the end of the mounting groove.

[0008] Optionally, one end of the adjusting plate is provided with a second abutment that tightly grips the bottom of the metal rail, and the other end of the adjusting plate is provided with a first abutment that tightly abuts against the abutment pad.

[0009] Optionally, both the slot and the adjusting plate have through holes in the middle for the spiral rail spike to pass through.

[0010] Optionally, the top of each abutment is provided with a waterproof cap that covers the top of the spiral spike and the adjusting nut.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] This utility model utilizes the combination of metal rails, spiral spikes, rubber pads, adjusting plates, and fastening mechanisms. The rail fastener adopts an integrated design that merges multiple components into a single part, reducing the need to handle each part individually during installation. Even relatively inexperienced workers can complete the installation task in a shorter time. This not only saves a lot of time, but also significantly improves overall work efficiency, especially during large-scale construction. Attached Figure Description

[0013] Figure 1 A structural schematic diagram of the prestressed adjustable track fastener of this utility model is provided;

[0014] Figure 2 for Figure 1 A schematic diagram of the split structure;

[0015] Figure 3 for Figure 2 A partial diagram of the split structure;

[0016] Figure 4 for Figure 3 A partial structural diagram.

[0017] Reference numerals: 1. Cement sleeper; 11. Mounting groove; 12. Spiral rail spike; 2. Rubber pad; 21. Abutment pad; 22. Slot; 23. Adjusting abutment plate; 201. Perforation; 231. First abutment head; 232. Second abutment head; 24. Telescopic groove; 25. Base plate; 26. Connecting spring; 27. L-shaped abutment rod; 28. Abutment sleeve; 29. ​​U-shaped rod; 3. Metal rail; 4. Waterproof cap; 5. Adjusting nut. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0024] Example

[0025] like Figures 1 to 4As shown, the prestressed adjustable track fastener proposed in this utility model includes a cement sleeper 1 and metal rails 3 set at both ends of the cement sleeper 1. The metal rails 3 are the tracks that support the movement of the train. Each end of the cement sleeper 1 has a mounting groove 11, and each mounting groove 11 has a pair of spiral track spikes 12 inside. The fastener also includes a rubber pad 2 movably set inside the mounting groove 11. Both ends of the rubber pad 2 are provided with abutments 21 that tightly abut against the inner wall of the end of the mounting groove 11. One end of the adjusting plate 23 has a second abutment 232 that tightly clamps the bottom of the metal rail 3, and the other end of the adjusting plate 23 has a first abutment 231 that tightly abuts against the abutment 21. The first abutment 231 and the second abutment 232 are locked in corresponding positions, thereby positioning the adjusting plate 23 and preventing it from sliding freely. Both ends of the rubber pad 2 are provided with slots 22. Inside each slot 22, there is an adjusting plate 23 that is fitted onto the spiral rail spike 12 and abuts against the bottom of the metal rail 3. The middle of both the slot 22 and the adjusting plate 23 is provided with a through hole 201 for the spiral rail spike 12 to move through. The diameter of the through hole 201 is more than twice the diameter of the spiral rail spike 12, so that the adjusting plate 23 can be tilted and bent upwards. The fastening mechanism is provided on the adjusting plate 23 and is used to fix the bottom of the metal rail 3.

[0026] Furthermore, such as Figures 3 to 4 As shown, the fastening mechanism includes telescopic grooves 24 formed at both ends of the adjusting plate 23. L-shaped abutment rods 27 are movably connected inside each telescopic groove 24. Each L-shaped abutment rod 27 has a fixedly connected sleeve 28 that engages with the spiral spike 12 at its connecting end. Each sleeve 28 has a waterproof cap 4 covering the top of the spiral spike 12 and the adjusting nut 5, and the waterproof cap 4 is made of rubber. Each sleeve 28 has an adjusting nut 5 that spirally engages with the spiral spike 12 at its top. Multiple U-shaped rods 29, arranged linearly and abutting against the upper surface of the adjusting plate 23, are fixedly connected to the bottom of the L-shaped abutment rods 27.

[0027] Furthermore, such as Figure 4 As shown, the fastening mechanism also includes a base plate 25 fixedly connected to the bottom end of the L-shaped abutment 27. A pair of connecting springs 26 are provided inside the slot 22. The connecting springs 26 ensure the components are connected together and also allow the adjusting abutment 23 to tilt upwards. One end of each connecting spring 26 is fixedly connected to the inner wall of the slot 22, and the other end of each connecting spring 26 is fixedly connected to the corresponding upper base plate 25.

[0028] In this embodiment, when it is necessary to use prestress-adjustable track fasteners, such as Figure 1As shown, first, the rubber pad 2 is placed into the mounting grooves 11 at both ends of the cement sleeper 1, and the spiral rail spike 12 is initially positioned by passing through the through hole 201 in the middle of the slot 22. At the same time, the abutments 21 at both ends of the rubber pad 2 are pressed tightly against the inner walls of both ends of the mounting groove 11 for further positioning. Next, a pair of abutments 28 are bent in the opposite direction, and the inner walls of the abutments 28 are firmly pressed against the outer walls of the spiral rail spike 12. At this time, the abutments 28 drive the corresponding L-shaped abutments 27 to move, and the L-shaped abutments 27 drive the ends of the corresponding adjusting plates 23 to tilt upward and open. Then, the metal rail 3 can be placed in the middle of the pair of adjusting plates 23 and located on the middle of the rubber pad 2. Then, the bent abutments 28 are released, and each L-shaped abutment 27, through the elastic thrust of the end-connected spring 26, will again drive the second abutment 232 at the end of the adjusting plate 23 to press tightly against the bottom of the metal rail 3. Finally, the adjusting nut 5 is installed on the top of the spiral spike 12. Since the adjusting nut 5 and the spiral spike 12 are connected by a spiral, the bottom end of the adjusting nut 5 will firmly abut against the top of the abutment sleeve 28. The abutment sleeve 28 will drive the L-shaped abutment rod 27 to move towards the slot 22, and the L-shaped abutment rod 27 will then drive the multiple U-shaped rods 29 below to move downwards. Until the first abutment 231 at one end of the adjusting abutment plate 23 firmly abuts against the abutment pad 21, and the second abutment 232 at the other end of the adjusting abutment plate 23 firmly abuts against the bottom of the metal rail 3, the metal rail 3 will be firmly installed in the middle of the rubber pad 2, which is quick and easy to operate.

[0029] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A prestressed adjustable rail fastener, comprising a cement sleeper (1) and a metal rail (3) arranged on both ends of the cement sleeper (1), both ends of the cement sleeper (1) are provided with a mounting groove (11), the inside of the mounting groove (11) is provided with a pair of spiral spikes (12), characterized in that, Also include: The rubber pad (2) is arranged in the installation groove (11), and the two ends of the rubber pad (2) are provided with clamping grooves (22), and the inner sides of the clamping grooves (22) are provided with adjusting abutting plates (23) which are sleeved on the spiral spikes (12) and abut against the bottom of the metal rail (3); The fastening mechanism is arranged on the adjusting abutting plate (23) and is used for fixing the bottom of the metal rail (3).

2. The pre-stressed adjustable track fastener of claim 1, wherein, The fastening mechanism comprises telescopic grooves (24) which are arranged at the two ends of the adjusting abutting plate (23), the inner sides of the telescopic grooves (24) are movably connected with L-shaped abutting rods (27), the connected ends of the L-shaped abutting rods (27) are fixedly connected with abutting sleeves (28) which are sleeved with the spiral spikes (12), the top of the abutting sleeve (28) is provided with an adjusting nut (5) which is spirally sleeved with the spiral spike (12), and the bottom of the L-shaped abutting rod (27) is fixedly connected with a plurality of U-shaped rods (29) which are linearly arranged and abut against the upper surface of the adjusting abutting plate (23).

3. The pre-stressed adjustable track fastener of claim 2, wherein, The fastening mechanism further comprises a bottom plate (25) which is fixedly connected with the bottom end of the L-shaped abutting rod (27), the inner side of the clamping groove (22) is provided with a pair of connecting springs (26), one end of the connecting spring (26) is fixedly connected with the inner wall of the clamping groove (22), and the other end of the connecting spring (26) is fixedly connected with the corresponding upper bottom plate (25).

4. The pre-stressed adjustable track fastener of claim 1, wherein, The two ends of the rubber pad (2) are further provided with abutting pads (21) which are tightly abutted against the inner wall of the end of the installation groove (11).

5. The pre-stressed adjustable track fastener of claim 4, wherein, One end of the adjusting abutting plate (23) is provided with a second abutting head (232) which tightly clamps the bottom of the metal rail (3), and the other end of the adjusting abutting plate (23) is provided with a first abutting head (231) which tightly abuts against the abutting pad (21).

6. The pre-stressed adjustable track fastener of claim 1, wherein, The middle parts of the clamping groove (22) and the adjusting abutting plate (23) are provided with perforations (201) through which the spiral spikes (12) are movably penetrated.

7. The pre-stressed adjustable track fastener of claim 2, wherein, The top of the abutting sleeve (28) is provided with a waterproof cap (4) which covers the top end of the spiral spike (12) and the adjusting nut (5).

Images