Restraint device for a long rail on a track side

By designing a constraint device for the long rails on the track side, and utilizing a combination of locking and constraint parts, the problem of long rails swaying during railway construction was solved, achieving stable fixing and efficient construction, and ensuring train operation safety.

CN224468164UActive Publication Date: 2026-07-07SHUOHUANG RAILWAY DEV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHUOHUANG RAILWAY DEV
Filing Date
2025-06-18
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The lack of effective devices in the existing technology to restrain long rails makes them prone to swaying during railway construction, posing a risk of encroaching on train tracks. Furthermore, the existing fixing methods are cumbersome and unstable.

Method used

A constraint device for a long rail on the side of a track was designed, comprising a connecting body, a locking part, and a constraint part. The locking part clamps the bottom end of the track, and the constraint part abuts against the outer side of the long rail. Stable fixation is achieved by using a screw and hook structure.

Benefits of technology

It effectively restrains the swaying of long rails, prevents them from encroaching on train tracks, is easy to operate, improves construction efficiency, and ensures the safety of train operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a constraint device for a long rail on one side of a track, comprising a connecting body, a clamping part movably arranged on the connecting body, the clamping part being configured to clamp a bottom end of the track, and a constraint part arranged at one end of the connecting body, the constraint part being configured to limit a long rail on one side of the track. The connecting body is arranged below the track, the clamping part clamps the bottom end of the track, and the constraint part abuts the outer side of the long rail on one side of the track, so that the swinging of the long rail is effectively constrained, and the risk of the long rail invading a train operation line is avoided. Meanwhile, the device is easy to install and disassemble, is convenient for operators to operate, and effectively improves work efficiency.
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Description

Technical Field

[0001] This application relates to the field of railway maintenance technology, and in particular to restraint devices for long rails on the track side. Background Technology

[0002] With the rapid development of China's railway industry, railway transportation tasks are becoming increasingly heavy, leading to increased damage and wear on railway rails and a shortened rail replacement cycle. This is especially true in critical sections such as small-radius curves and tunnel entrances / exits, where the replacement cycle is even shorter.

[0003] In rail replacement work, before replacement, the new rails to be laid need to be unloaded onto both sides of the old rails. These unloaded rails are often long, approximately 500 meters in length. When placed on both sides of the track, these long rails are prone to swaying. If the swaying is severe, the long rails may encroach on the locomotive clearance, seriously affecting train operation safety. Therefore, restraining and controlling the new long rails unloaded onto both ends of the old rails to prevent swaying and safety hazards has become an urgent problem to be solved in railway track maintenance.

[0004] In related technologies, there is no dedicated device for controlling and fixing long rails. In actual operation, simple methods such as rope binding or temporarily stacking heavy objects to weigh down the long rails are used to fix them. However, when the long rails are subjected to large external forces, such as thermal expansion and contraction due to temperature changes or wind, the ropes are prone to loosening or even breaking, and cannot effectively restrain the swaying of the long rails; while the method of temporarily stacking heavy objects to weigh them down is not only cumbersome to operate, requiring a lot of manpower to move the heavy objects, but the stacked heavy objects are also unstable, posing a risk of slippage and potentially causing injury to the workers.

[0005] In summary, the existing long rails lack fixing devices and cannot effectively restrain the swaying of the long rails, posing a risk of long rails encroaching on the train track. Utility Model Content

[0006] Therefore, it is necessary to provide a restraint device for the long rails on the track side to address the problem that existing long rails cannot be effectively restrained and pose safety hazards.

[0007] A constraint device for a long track side rail includes:

[0008] Connecting main body;

[0009] A locking part is movably disposed on the connecting body; the locking part is configured to lock the bottom end of the track.

[0010] A constraint part is disposed at one end of the connecting body; the constraint part is configured to limit the long rail on one side of the track.

[0011] In one embodiment, the connecting body includes an adjusting rod that extends laterally; two engaging portions are movably disposed on the adjusting rod at a relative interval for clamping the two sides of the bottom end of the track.

[0012] In one embodiment, the adjusting rod is a screw, the engaging part is a hook, one end of the hook has a through hole, and the through hole is sleeved on the screw.

[0013] In one embodiment, the end of the hook away from the adjusting rod is provided with two vertically spaced claws, which extend in a direction perpendicular to the hook.

[0014] In one embodiment, two bolts are further included, which are sleeved on the screw and respectively located on the outside of the two hooks.

[0015] In one embodiment, the connecting body further includes a fixing rod, which is laterally disposed at one end of the adjusting rod and movably connected to the adjusting rod.

[0016] In one embodiment, the connecting body further includes a connecting rod comprising a first segment, a second segment, a third segment, a fourth segment, and a fifth segment. The first segment is arranged laterally and connected to the end of the fixed rod away from the adjusting rod. The second segment is arranged longitudinally perpendicular to the first segment and upwards. The third segment is arranged laterally perpendicular to the second segment and away from the fixed rod. The fourth segment has an L-shaped structure, with one end connected to the third segment and the other end arranged closer to the fixed rod.

[0017] In one embodiment, the lengths of the second and third segments are greater than the length of the first segment.

[0018] In one embodiment, the constraint portion is a longitudinally arranged ring structure.

[0019] In one embodiment, one side surface of the constraint portion is provided with a soft material.

[0020] The aforementioned restraint device for the long rails on the track side has its connecting body positioned below the track. The engaging part clamps the bottom end of the track, while the restraining part abuts against the outer side of the long rail on one side of the track. This effectively restrains the swaying of the long rails and prevents the risk of them encroaching on the train's running track. Furthermore, the device is easy to install and disassemble, facilitating operation by workers and effectively improving work efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation of the constraint device for the long rail on the track side.

[0022] Figure 2 This is a front view of the constraint device for the long rail on the track side.

[0023] Figure 3 This is a schematic diagram of the constraint device.

[0024] In the diagram: 10. Connecting body; 11. Adjusting rod; 111. Screw; 112. Bolt; 12. Fixing rod; 13. Connecting rod; 131. First section; 132. Second section; 133. Third section; 134. Fourth section;

[0025] 20. Locking part; 21. Locking hook; 22. Locking claw;

[0026] 30. Restraint section;

[0027] 40. Track; 41. Long rail. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See Figure 1 , Figure 1 A schematic diagram of the installation of the constraint device for the long rail on the track side in one embodiment of this application is shown.

[0035] This application provides an embodiment of a track-side long rail restraint device, comprising a connecting body 10, a locking part 20, and a restraint part 30. The track-side long rail restraint device is used in railway engineering operations such as rail replacement and track grinding section replacement. It restrains 41 new long rails (41 sections) unloaded onto both sides of the old rails on the railway line, preventing them from swaying due to factors such as temperature and curves, eliminating safety hazards such as the 41 long rails encroaching on the track, and effectively ensuring train operation safety.

[0036] In this embodiment, the constraint device for the long rail on the track side includes a connecting body 10; a locking part 20 is movably disposed on the connecting body 10, and the locking part 20 is configured to clamp the bottom end of the track 40. A constraint part 30 is disposed at one end of the connecting body 10, and the constraint part 30 is configured to limit the long rail 41 on one side of the track 40.

[0037] The connecting body 10 is used to connect and support the engaging part 20 and the restraining part 30. The connecting body 10 is elongated, and its length is reasonably set according to actual operation requirements and the spacing of the rails 40 to ensure that the device has sufficient coverage to restrain the long rails 41, while also being easy for operators to carry and operate. The surface of the connecting body 10 is treated with rust prevention, such as by spraying rust-preventive paint, to extend its service life.

[0038] The engaging portion 20 is movably disposed on the connecting body 10 to lock the bottom end of the track 40. Two engaging portions 20 are connected to the connecting body 10 and are spaced apart. The engaging portions 20 can slide on the connecting body 10 to accommodate the bottom ends of the track 40 of different widths and shapes.

[0039] A constraint part 30 is disposed at one end of the connecting body 10 to limit the long rail 41 on one side of the track 40. The connecting body 10 has a certain extension length, and the shape of part of the connecting body 10 matches the long rail 41 on one side of the track 40. Part of the connecting body 10 covers the long rail 41. The constraint part 30 is disposed at one end of the connecting body 10 to abut against the outer surface of the long rail 41 to constrain and limit the long rail 41 and prevent the long rail 41 from shifting or swinging.

[0040] In the specific implementation process, the connecting body 10 of the constraint device is placed below the track 40, and the locking part 20 on the connecting body 10 is used to lock the bottom end of the track 40. The long rail 41 is placed on the outside of the track, and the constraint part 30 is abutted against one side of the long rail 41 to limit the movement of the long rail 41 and play a constraint role.

[0041] As described above, the connecting body 10 is positioned below the track 40, the engaging part 20 clamps the bottom end of the track 40, and the restraining part 30 abuts against the outside of the long rail 41 on one side of the track 40, effectively restraining the swing of the long rail 41 and preventing the risk of the long rail 41 encroaching on the train running track. At the same time, this device is easy to install and disassemble, facilitating operation by workers and effectively improving work efficiency.

[0042] Combination Figure 2 As shown, Figure 2 This is a front view of a constraint device for a long track side provided in one embodiment of this application. In some embodiments, the connecting body 10 includes an adjusting rod 11, which extends laterally; two engaging portions 20 are movably disposed on the adjusting rod 11 at a relatively interval to clamp the bottom sides of the track 40.

[0043] Specifically, the connecting body 10 includes an adjusting rod 11 that extends laterally. Two engaging parts 20 are spaced apart from each other and move along the axial direction of the adjusting rod 11 to adjust the distance between the two engaging parts 20 to accommodate tracks 40 of different sizes and maintain stable engagement.

[0044] In one embodiment, the adjusting rod 11 is a screw 111. Specifically, the adjusting rod 11 is a screw 111, which is made of alloy steel to ensure sufficient strength and toughness to withstand the external force generated when the long rails 41 swing. The surface of the screw 111 is threaded, with clear and uniform threads, facilitating the installation and adjustment of the engaging part 20.

[0045] The diameter and length of screw 111 are adapted to specific usage requirements, and will not be elaborated here.

[0046] In one embodiment, the engaging part 20 is a hook 21, one end of which has a through hole, which is sleeved on the screw 111.

[0047] Specifically, the engaging part 20 consists of two hooks 21, which are movably mounted on the screw 111 with a relative interval between them. The hooks 21 are made entirely of cast steel, providing good wear resistance and impact resistance. One end of each hook 21 has a through hole. The diameter of the through hole is slightly larger than the diameter of the screw 111 to ensure that the hooks 21 can slide smoothly on the screw 111.

[0048] The inner wall of the through hole is provided with a thread that matches the thread of the screw 111. By rotating the hook 21, it can be moved left and right on the screw 111, thereby adjusting the distance between the two hooks 21 to meet the clamping requirements of different width tracks 40.

[0049] In one embodiment, the hook 21 is provided with two vertically spaced claws 22 at the end away from the adjusting rod 11, and the claws 22 extend in a direction perpendicular to the hook 21.

[0050] Specifically, the end of the hook 21 furthest from the adjusting rod 11 has two spaced-apart claws 22. The claws 22 extend in a direction perpendicular to the hook 21, i.e., they extend laterally. The upper claw 22 engages with the upper surface of the bottom end of the track 40, and the lower claw 22 engages with the lower surface of the bottom end of the track 40. Each claw 22 has a certain lateral extension length to increase the contact area with the bottom surface of the track 40 and improve the stability of the engagement.

[0051] The ends of the jaws 22 are chamfered to prevent the tips of the jaws 22 from contacting the track 40 and scratching it. There is a certain vertical distance between the two jaws 22, which adapts to the bottom ends of the track 40 of different thicknesses, allowing for better clamping of both sides of the bottom end of the track 40 and increasing the stability and reliability of the engagement. The surface of the jaws 22 is provided with anti-slip textures of a certain depth, arranged in a wavy pattern, further improving the friction between the jaws 22 and the track 40 and preventing the device from sliding on the track 40.

[0052] In one embodiment, two bolts 112 are also included, which are sleeved on the screw 111 and respectively located on the outside of the two hooks 21.

[0053] Specifically, two bolts 112 are fitted onto the screw rod 111 and are respectively located on the outside of the two hooks 21. The bolts 112 are standard hexagonal head bolts made of stainless steel, which have good corrosion resistance and strength. The threads of the bolts 112 match the threads of the screw rod 111. By rotating the bolts 112, they can move on the screw rod 111 and press against the hooks 21. After the restraint device is installed on the rail 40, rotating the bolts 112 makes the bolts 112 press tightly against the hooks 21, thereby increasing the clamping force between the hooks 21 and the rail 40, ensuring that the device is firmly fixed on the rail 40 and will not loosen due to the swing of the long rail 41.

[0054] Combination Figure 3 As shown, Figure 3 This is a schematic diagram of the constraint device provided in one embodiment of this application. In some embodiments, the connecting body 10 further includes a fixing rod 12, which is laterally disposed at one end of the adjusting rod 11 and movably connected to the adjusting rod 11.

[0055] Specifically, the fixing rod 12 is horizontally positioned at one end of the adjusting rod 11 and is movably connected to the adjusting rod 11. The fixing rod 12 is made of round steel. The fixing rod 12 and the adjusting rod 11 are movably connected through a rotatable connecting sleeve. The inner wall of the connecting sleeve is provided with threads that match the outer diameters of the adjusting rod 11 and the fixing rod 12. By rotating the connecting sleeve, the distance between the fixing rod 12 and the adjusting rod 11 can be adjusted and fixed to adapt to different installation environments and track 40 layout requirements.

[0056] The fixing rod 12 is threadedly connected to the adjusting rod 11 as a connecting sleeve, and the inner wall of the fixing rod 12 is provided with a thread that matches the screw 111. By rotating the fixing rod 12, the distance between the fixing rod 12 and the screw 111 can be adjusted, thereby adjusting the distance between the constraint part 30 and the long rail 41.

[0057] In one embodiment, the connecting body 10 further includes a connecting rod 13, which includes a first segment 131, a second segment 132, a third segment 133, and a fourth segment 134.

[0058] The first segment 131 is arranged horizontally and connected to the end of the fixed rod 12 away from the adjusting rod 11; the second segment 132 is arranged vertically and upwardly perpendicular to the first segment 131; the third segment 133 is arranged horizontally and perpendicular to the second segment 132 towards the side away from the fixed rod 12; the fourth segment 134 has an L-shaped structure, with one end of the fourth segment 134 connected to the third segment 133 and the other end arranged towards the side closer to the fixed rod 12.

[0059] Specifically, the first segment 131 is arranged horizontally, and is connected to the end of the fixed rod 12 away from the adjusting rod 11 by welding. The first segment 131 serves as the base part of the connecting rod 13, providing support for the extension of subsequent segments.

[0060] The second segment 132 is set vertically upwards and perpendicular to the first segment 131. The second segment 132 serves as a transition connecting the first segment 131 and the third segment 133, allowing the connecting rod 13 to change direction in space.

[0061] The third segment 133 is positioned laterally perpendicular to the second segment 132, moving away from the fixed rod 12. The third segment 133 further extends the lateral length of the connecting rod 13, providing space for the subsequent installation and functional implementation of the fourth segment 134. The lengths of the second segment 132 and the third segment 133 are greater than the length of the first segment 131. The longer second segment 132 and the third segment 133 allow the constraint part 30 to better adapt to the tracks 40 and long rails 41 at different positions, improving the constraint effect.

[0062] The fourth segment 134 has an L-shaped structure. One end of the fourth segment 134 is connected to the third segment 133, and the other end of the fourth segment 134 is positioned closer to the fixed rod 12. The L-shaped structure of the fourth segment 134 allows the connecting rod 13 to better engage with the constraint part 30. The second segment 132, the third segment 133, and the fourth segment 134 form a U-shaped structure, covering the top of the long rail 41. The other end of the L-shaped fourth segment 134 is positioned close to the long rail 41, and the constraint part 30 is installed at the other end of the fourth segment 134 to abut against the outer surface of the long rail 41, effectively constraining the long rail 41.

[0063] In one embodiment, the constraint portion 30 is a ring structure, which is arranged longitudinally.

[0064] Specifically, the constraint part 30 is a ring-shaped structure, longitudinally arranged on the fourth segment 134 of the connecting rod 13. One outer peripheral surface of the constraint part 30 abuts against the outer surface of the long rail 41 to prevent the long rail 41 from moving outward due to external force, or to limit the long rail 41 by utilizing the space between the connecting rod 13 and the constraint part 30, preventing the long rail 41 from moving and intruding into the track 40, ensuring the normal operation of the track 40 and improving safety.

[0065] In one embodiment, a soft material is provided on one side surface of the constraint portion 30.

[0066] Specifically, a soft material, made of highly elastic rubber sheet, is provided on one side surface of the annular structure of the restraint part 30. The rubber sheet is adhered to the inner wall of one side of the annular structure with adhesive. The rubber sheet has good cushioning performance and friction. When the long rail 41 swings and impacts the rubber sheet, the rubber sheet can absorb part of the impact force, reducing damage to the long rail 41 and the annular structure, while increasing the friction between the long rail 41 and the rubber sheet, further improving the restraint effect.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A restraining device for a rail side long rail, characterized in that, The utility model relates to a rail connecting device, including: Connecting body (10); Clamping portion (20) is movably arranged on the connecting body (10);The clamping portion (20) is configured to clamp the bottom end of the rail (40); Restraining portion (30) is arranged at one end of the connecting body (10);The restraining portion (30) is configured to limit the long rail (41) on one side of the rail (40).

2. The rail side long rail restraining device of claim 1, wherein, The connecting body (10) includes an adjusting rod (11) arranged transversely, and two clamping portions (20) are movably arranged on the adjusting rod (11) at opposite intervals for clamping both sides of the bottom end of the rail (40).

3. The rail side long rail restraining device of claim 2, wherein, The adjusting rod (11) is a screw rod (111), and the clamping portion (20) is a clamping hook (21) provided with a through hole at one end, which is sleeved on the screw rod (111).

4. The rail side long rail restraining device of claim 3, wherein, The clamping hook (21) is provided with two clamping claws (22) spaced vertically at one end away from the adjusting rod (11), which are arranged in a direction perpendicular to the clamping hook (21).

5. The rail side long rail restraining device of claim 4, wherein, Two bolts (112) are also included, which are sleeved on the screw rod (111) and arranged outside the two clamping hooks (21) respectively.

6. A restraining arrangement for a rail side long rail according to any one of claims 2-5, characterized in that, The connecting body (10) further includes a fixing rod (12) arranged transversely at one end of the adjusting rod (11) and movably connected with the adjusting rod (11).

7. The rail side long rail restraining device of claim 6, wherein, The connecting body (10) further includes a connecting rod (13) including a first segment (131), a second segment (132), a third segment (133), a fourth segment (134) and a fifth segment, the first segment (131) is arranged transversely and connected with the fixing rod (12) away from one end of the adjusting rod (11);The second segment (132) is arranged vertically upward along the longitudinal direction perpendicular to the first segment (131);The third segment (133) is arranged transversely perpendicular to the second segment (132) away from one side of the fixing rod (12);The fourth segment (134) is an L-shaped structure, one end of the fourth segment (134) is connected with the third segment (133), and the other end is arranged towards one side close to the fixing rod (12).

8. The rail side long rail restraining device of claim 7, wherein, The lengths of the second segment (132) and the third segment (133) are greater than the length of the first segment (131).

9. The rail side long rail restraining device of claim 8, wherein, The restraining portion (30) is a ring structure arranged longitudinally.

10. The rail side long rail restraining device of claim 9, wherein, A soft material is arranged on one side surface of the restraining portion (30).