Railway rail fastening device
By combining a motor-driven bidirectional screw and an electric cylinder, the railway rail spacing can be conveniently adjusted and fixed, solving the problems of cumbersome measurement and difficult movement in existing technologies, and improving construction efficiency and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 昆明铁道职业技术学院(昆明市教育对外合作交流中心)
- Filing Date
- 2025-09-13
- Publication Date
- 2026-06-16
AI Technical Summary
Existing railway rail fastening devices require workers to constantly measure the distance with a ruler when clamping and fixing two rails. This is cumbersome to adjust and inconvenient to move, increasing the difficulty of construction.
The motor drives a bidirectional screw to move the adjusting seat and L-shaped seat. The spacing is adjusted by using scale lines and a reference plate. An electric cylinder pushes the clamping seat to be inserted into the rail for fixation. Rollers are provided for easy movement.
It enables rapid adjustment of rail spacing without manual measurement, simplifies the fixing process, improves construction efficiency, and reduces the difficulty of manual lifting and moving by using rollers.
Smart Images

Figure CN224363148U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway rail fastening technology, and more specifically, it relates to a railway rail fastening device. Background Technology
[0002] The function of rails is to guide the wheels of locomotives and rolling stock forward, bear the enormous pressure of the wheels, and transmit it to the sleepers. In the process of railway construction, the connection and fixing of rails is a crucial task.
[0003] A search revealed that Chinese utility model patent application number CN202420340388.9 discloses a railway rail fastening device, including a mounting box with adjustable connecting frames on both sides; a detachable clamping frame mounted on the connecting frames for fastening the rail; a first electro-hydraulic rod fixed to the bottom of the mounting box; a limiting plate fixed to the top of the output rod of the first electro-hydraulic rod for limiting movement; a drive adjustment mechanism mounted on the mounting box for driving and controlling the connecting frames; and an adjustable clamping mechanism mounted on the clamping frame.
[0004] It can clamp and fix the steel rails to limit their movement and prevent them from shifting, which is beneficial to improving the construction efficiency of erection and assembly. However, when clamping and fixing the two steel rails, the staff needs to use a ruler to continuously measure the distance between the two steel rails to fix them at the corresponding distance position. Adjusting the distance between the two steel rails is cumbersome. In addition, it is not convenient to move on the steel rails. It requires people to lift and move it, which makes it difficult to move. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the problems existing in the prior art, this utility model provides a railway rail fastening device to solve the technical problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a railway rail fastening device, comprising two rail bodies and a cross seat. The bottom end of the cross seat is provided with an adjustment groove, and a bidirectional screw is rotatably connected inside the adjustment groove. A motor for driving the bidirectional screw is fixedly installed on the cross seat. Two adjusting seats are symmetrically threaded to the outside of the bidirectional screw, and both adjusting seats are slidably engaged with the adjustment groove. An L-shaped seat is fixedly connected to the bottom end of each adjusting seat, and a fixed seat is fixedly connected to the L-shaped seat. Two first electric cylinders are fixedly connected to the side end of the fixed seat. The telescopic ends of the first electric cylinder are all fixedly connected to the first clamping seat. The side end of the horizontal seat is provided with a scale line. The top of the two L-shaped seats is fixedly connected to the reference plate. The side end face of the reference plate is flush with the side of the L-shaped seat near the rail body. When the side ends of the two L-shaped seats contact the rail body and push the two rail bodies to move, the position of the two reference plates on the scale line can be observed to facilitate the adjustment of the distance between the two rail bodies. This avoids the need for people to measure with a ruler and improves the convenience of fixing the two rail bodies between the corresponding distances.
[0009] The present invention is further configured such that a second electric cylinder is fixedly connected to the side end of the fixed base, a second clamping seat is fixedly connected to the side end of the second electric cylinder, the second clamping seat is inserted into the interior of the rail body, and the top end of the second clamping seat contacts the side end of the rail body.
[0010] The present invention is further provided that a clamping plate is fixedly connected to the bottom side of the L-shaped seat to facilitate clamping the rail body.
[0011] The present invention is further provided that the top of the card plate is provided with a bevel on the side away from the L-shaped seat, so as to facilitate the insertion of the card plate into the interior of the rail body.
[0012] The present invention is further configured such that a sealing seat is inserted inside the adjusting groove, the sealing seat is fixedly connected to the cross seat by multiple screws, and the side end of the sealing seat is rotatably connected to the side end of the bidirectional screw, thereby sealing one end of the adjusting groove and supporting the side end of the bidirectional screw.
[0013] The present invention is further configured such that multiple first connecting seats are fixedly connected inside the two L-shaped seats, and each of the multiple first connecting seats is rotatably connected to a roller, which rolls on the rail body to facilitate its movement.
[0014] The present invention is further configured such that a second connecting seat is fixedly connected to the top of the cross seat, a rotating plate is rotatably connected inside the second connecting seat, and a handle is fixedly connected to the top of the rotating plate to facilitate its movement on the two rail bodies.
[0015] The present invention is further provided that a handle is fixedly connected to both sides of the top of the horizontal seat to facilitate lifting it.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a railway rail fastening device, which has the following advantages:
[0018] 1. The motor drives the double-headed screw to rotate clockwise, which moves the two adjusting seats to the sides. The two adjusting seats then move the two L-shaped seats. By observing the scale value on the reference plate, the reference plate is adjusted to the corresponding distance according to the distance between the two rail bodies. Then, the first electric cylinder pushes the first clamping seat to move, which in turn pushes the rail body to move, so that the side end of the rail body contacts the side end of the L-shaped seat. This fixes the two rail bodies at the corresponding distance, making it easy to adjust the distance between the two rail bodies. This eliminates the need for people to measure with a ruler and improves the convenience of fixing the two rail bodies at the corresponding distance.
[0019] 2. During the clamping process of the rail body, the clamping plate is inserted into the inside of the rail body. At this time, the top of the clamping plate contacts the inner top of the rail body. The second clamping seat is moved by the second electric cylinder and inserted into the inside of the rail body. At this time, the inner top surface of the second clamping seat contacts, which makes it easy to fix the two rail bodies at the same height.
[0020] 3. By setting multiple rollers on the L-shaped seat, and by having people hold the handle and rotate the plate to a certain angle, the handle can be adjusted to a height that is easy for people to operate. The staff can push the cross seat by the handle, and the multiple rollers will roll on the rail body, making it easy to move and avoiding the need for people to lift and move it. Attached Figure Description
[0021] Figure 1 This is a front structural diagram of a railway rail fastening device according to the present invention;
[0022] Figure 2 This is a structural diagram showing the cooperation of the rail body, L-shaped seat, fixed seat, two first electric cylinders, second electric cylinder, first clamping seat and second clamping seat in this utility model;
[0023] Figure 3 This is a structural diagram showing the combination of the L-shaped seat, fixed seat, two first electric cylinders, second electric cylinder, first clamping seat, and second clamping seat in this utility model.
[0024] Figure 4 This is a structural diagram showing the assembly of the cross seat, motor, bidirectional screw, and two adjusting seats in this utility model.
[0025] Figure 5This is a schematic diagram of the connection between the second connecting seat, the rotating plate, and the handle in this utility model.
[0026] In the diagram: 1. Rail body; 2. Cross seat; 3. Adjustment groove; 4. Double-acting screw; 5. Adjustment seat; 6. L-shaped seat; 7. First electric cylinder; 8. First clamping seat; 9. Scale line; 10. Reference plate; 11. Second electric cylinder; 12. Second clamping seat; 13. Clamping plate; 14. Bevel; 15. Sealing seat; 16. First connecting seat; 17. Roller; 18. Second connecting seat; 19. Rotating plate; 20. Handle; 21. Lifting handle; 22. Motor; 23. Fixed seat. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] Please see Figures 1-5 A railway rail fastening device includes two rail bodies 1 and a crossbeam 2. The bottom end of the crossbeam 2 is provided with an adjusting groove 3. A bidirectional screw 4 is rotatably connected inside the adjusting groove 3. A sealing seat 15 is inserted inside the adjusting groove 3 and is fixedly connected to the crossbeam 2 by multiple screws. The side end of the sealing seat 15 is rotatably connected to the side end of the bidirectional screw 4, sealing one end of the adjusting groove 3 and supporting the side end of the bidirectional screw 4. A motor 22 for driving the bidirectional screw 4 is fixedly installed on the crossbeam 2. The outside of the bidirectional screw 4... The symmetrical threaded connection has two adjusting seats 5, both of which slide with the adjusting groove 3. The bottom of each adjusting seat 5 is fixedly connected to an L-shaped seat 6, and a fixed seat 23 is fixedly connected to the L-shaped seat 6. Two first electric cylinders 7 are fixedly connected to the side of the fixed seat 23. The telescopic ends of the first electric cylinders 7 are fixedly connected to first clamping seats 8. The side of the horizontal seat 2 is provided with a scale line 9. The top of each L-shaped seat 6 is fixedly connected to a reference plate 10. The side end face of the reference plate 10 is flush with the side of the L-shaped seat 6 near the rail body 1.
[0031] Specifically, the motor 22 drives the bidirectional screw 4 to rotate clockwise, which causes the two adjusting seats 5 to move to both sides. The two adjusting seats 5 respectively drive the two L-shaped seats 6 to move. By observing the scale value of the reference plate 10 on the scale line 9, the reference plate 10 is adjusted to the corresponding distance according to the distance between the two rail bodies 1. Then, the first electric cylinder 7 pushes the first clamping seat 8 to move, and pushes the rail body 1 to move, so that the side end of the rail body 1 contacts the side end of the L-shaped seat 6, thereby fixing the two rail bodies 1 at the corresponding distance position. This makes it easy to adjust the distance between the two rail bodies 1, avoiding the need for people to measure with a ruler, and improving the convenience of fixing the two rail bodies 1 at the corresponding distance.
[0032] Please see Figures 1-3 A second electric cylinder 11 is fixedly connected to the side end of the fixed seat 23, and a second clamping seat 12 is fixedly connected to the side end of the second electric cylinder 11. The second clamping seat 12 is inserted into the interior of the rail body 1. Two fixed columns are fixedly connected to the second clamping seat 12 to increase its stability. Both fixed columns are slidably engaged with the fixed seat 23. The top of the second clamping seat 12 contacts the side end of the rail body 1. A clamping plate 13 is fixedly connected to the bottom side of the side end of the L-shaped seat 6. The top surface of the clamping plate 13 is flush with the top surface of the second clamping seat 12. The distance between the top surface of the clamping plate 13 and the bottom end of the roller 17 is equal to the thickness of the upper side of the rail, which facilitates clamping the rail body 1. An inclined edge 14 is provided on the side of the top of the clamping plate 13 away from the L-shaped seat 6, which facilitates inserting the clamping plate 13 into the interior of the rail body 1.
[0033] Specifically, during the clamping process of the rail body 1, the clamping plate 13 is inserted into the inside of the rail body 1. At this time, the top of the clamping plate 13 contacts the inner top of the rail body 1. The second electric cylinder 11 pushes the second clamping seat 12 to move and inserts the second clamping seat 12 into the inside of the rail body 1. At this time, the inner top surface of the second clamping seat 12 contacts, which makes it easy to fix the two rail bodies 1 at the same height.
[0034] Please see Figure 1 and Figure 3 The two L-shaped seats 6 are internally fixedly connected to multiple first connecting seats 16, and each of the multiple first connecting seats 16 is rotatably connected to a roller 17. The roller 17 rolls on the rail body 1 to facilitate its movement. The top of the cross seat 2 is fixedly connected to a second connecting seat 18, and the inside of the second connecting seat 18 is rotatably connected to a rotating plate 19. The top of the rotating plate 19 is fixedly connected to a handle 20 to facilitate its movement on the two rail bodies 1. Both sides of the top of the cross seat 2 are fixedly connected to a lifting handle 21 to facilitate its lifting.
[0035] Specifically, by setting multiple rollers 17 on the L-shaped seat 6, and by having people hold the handle 20 to rotate the turntable 19 to a certain angle, the handle 20 is adjusted to a height that is easy for people to operate. The staff pushes the cross seat 2 through the handle 20, and the multiple rollers 17 roll on the rail body 1, which makes it easy to move and avoids people having to lift and move it.
[0036] In summary, when using the overall equipment:
[0037] First, fix one rail body 1 in place. Then, place the other rail body 1 in the corresponding position. Next, lift the device above the two rail bodies 1. Simultaneously, the motor 22 drives the bidirectional screw 4 to rotate, adjusting the distance between the two L-shaped seats 6. This places the multiple rollers 17 on the two L-shaped seats 6 above the two rail bodies 1. The rollers 17 roll on the rail bodies 1 to adjust them to the appropriate position. The motor 22 then drives the bidirectional screw 4 to rotate clockwise, causing the two adjusting seats 5 to move to both sides. The two adjusting seats 5 then move the two L-shaped seats 6. If the distance between the two rail bodies 1 is less than the required installation distance, the L-shaped seats 6 push the unfixed rail body 1 to move. By observing the scale value of the reference plate 10 on the scale line 9, the reference plate 10 is adjusted to the corresponding spacing according to the distance between the two rail bodies 1. If the distance between the two rail bodies 1 is greater than the distance between the two rail bodies 1 to be installed, the two L-shaped seats 6 are adjusted to the corresponding spacing position. Then, the first electric cylinder 7 pushes the first clamping seat 8 to move and pushes the rail body 1 to move, so that the side end of the rail body 1 contacts the side end of the L-shaped seat 6, thereby fixing the two rail bodies 1 at the corresponding spacing position. At this time, the clamping plate 13 is inserted into the interior of the rail body 1. Then, the second electric cylinder 11 pushes the second clamping seat 12 to move, so that the second clamping seat 12 is inserted into the interior of the rail body 1, thereby fastening the two rail bodies 1.
[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A railway rail fastening device, comprising two rail bodies (1) and a crossbar (2), characterized in that: The bottom end of the horizontal seat (2) is provided with an adjustment groove (3). The inside of the adjustment groove (3) is rotatably connected to a bidirectional screw (4). The horizontal seat (2) is fixedly installed with a motor (22) that drives the bidirectional screw (4) to rotate. The outside of the bidirectional screw (4) is symmetrically connected to two adjustment seats (5). Both adjustment seats (5) are slidably engaged with the adjustment groove (3). The bottom end of both adjustment seats (5) is fixedly connected to an L-shaped seat (6). The L-shaped seat (6) is fixedly connected to a fixed seat (23). The side end of the fixed seat (23) is fixedly connected to two first electric cylinders (7). The telescopic end of the first electric cylinder (7) is fixedly connected to a first clamping seat (8). The side end of the horizontal seat (2) is provided with a scale line (9). The top end of both L-shaped seats (6) is fixedly connected to a reference plate (10). The side end face of the reference plate (10) is flush with the side of the L-shaped seat (6) near the rail body (1).
2. The railway rail fastening device according to claim 1, characterized in that: The side end of the fixed seat (23) is fixedly connected to the second electric cylinder (11), and the side end of the second electric cylinder (11) is fixedly connected to the second clamping seat (12). The second clamping seat (12) is inserted into the interior of the rail body (1), and the top end of the second clamping seat (12) contacts the side end of the rail body (1).
3. The railway rail fastening device according to claim 1, characterized in that: The L-shaped base (6) is fixedly connected to a card plate (13) on its side bottom.
4. A railway rail fastening device according to claim 3, characterized in that: The top of the card plate (13) is provided with a bevel (14) on the side away from the L-shaped seat (6).
5. A railway rail fastening device according to claim 1, characterized in that: A sealing seat (15) is inserted inside the adjusting groove (3). The sealing seat (15) is fixedly connected to the cross seat (2) by multiple screws. The side end of the sealing seat (15) is rotatably connected to the side end of the bidirectional screw (4).
6. A railway rail fastening device according to claim 1, characterized in that: The two L-shaped seats (6) are internally fixedly connected to a plurality of first connecting seats (16), and each of the plurality of first connecting seats (16) is rotatably connected to a roller (17).
7. A railway rail fastening device according to claim 1, characterized in that: The top of the horizontal seat (2) is fixedly connected to a second connecting seat (18), and the interior of the second connecting seat (18) is rotatably connected to a rotating plate (19), and the top of the rotating plate (19) is fixedly connected to a handle (20).
8. A railway rail fastening device according to claim 1, characterized in that: The top two sides of the horizontal seat (2) are fixedly connected with handles (21).