Iron clamping type sleeper anti-climbing device
By introducing pressure sensors and motor-driven transmission mechanisms into the anti-climbing device for iron-clip type sleepers, real-time detection and automatic tightening of track pressure are achieved, solving the problems of loosening and corrosion, and improving the protective effect and safety of the track.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王增玉
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-17
AI Technical Summary
Existing anti-climb devices for iron-clip type sleepers are prone to loosening after prolonged use, and the nut connections are susceptible to corrosion. Furthermore, they cannot be detected and tightened in a timely manner, affecting the safety of track use.
Employing a transmission mechanism driven by a pressure sensor, ratchet, and motor, the system automatically tightens bolts by detecting changes in track pressure. Combined with a protective shell and cover to prevent corrosion, it achieves both loosening detection and tightening.
It effectively prevents sleeper creep, improves structural stability and strength, avoids nut loosening and corrosion, and ensures track safety and reliability.
Smart Images

Figure CN224133472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track technology, and more specifically, to a rail sleeper anti-climbing device. Background Technology
[0002] The iron-clad sleeper (also known as a double-block sleeper) is a type of trackless sleeper. Its characteristic is that the sleeper consists of two concrete blocks separated by a rubber pad. When a train is running, longitudinal forces often act on the rails, causing the rails to shift and sometimes even moving the sleepers along with them. This shift can cause uneven rail gaps, sleeper misalignment, and other problems, which can damage the track and even cause train derailment, threatening people's safety. Therefore, a way is needed to prevent the rails from shifting. The current method is to use anti-creep devices.
[0003] The existing publicly available technology, application number CN93229763.3, describes a rail anti-climb device. It is achieved by connecting two blocks A and B, which are directly connected to the mechanical claw and the rail surface and form a rectangular cavity with the horizontal plane in the rail surface, with square head bolts.
[0004] However, the aforementioned patent still has certain drawbacks in use: the movable mechanical claw in its structure will continuously move outward under the longitudinal force of the rail, thereby driving the nut outward, and eventually the nut will fall off, causing the anti-creep device to fail. Furthermore, after long-term use, the connection between the bolt and nut located on the ground will rust, making it difficult to remove the nut when replacement is needed. It cannot prevent rust, resulting in poor overall protection. Moreover, it cannot detect the degree of looseness of the structure, and it cannot be tightened in time after loosening, affecting the safety of rail use. Overall, the use effect is not ideal.
[0005] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the shortcomings of existing technologies, this utility model provides a rail sleeper anti-climbing device with iron clips, which has the advantages of good protection, loosening detection, and loosening tightening, thereby solving the problems mentioned in the background technology.
[0008] (II) Technical Solution
[0009] To achieve the aforementioned advantages of good protective effect, loosening detection, and loosening tightening, the specific technical solution adopted by this utility model is as follows:
[0010] The anti-climb device for rail sleepers using a rail clip includes rail clips and a control box. Two sets of rail clips are provided, each with a mounting groove in the center. Nuts are welded into the mounting grooves, and fastening bolts are threaded between the nuts. A slot is formed on one side of each fastening bolt, and a connecting rod is installed inside the slot. One end of the connecting rod is connected to a drive shaft via a coupling. A ratchet is installed inside the coupling on the surface of the drive shaft and is fixedly connected to one end of the drive shaft. A fixing disc is installed in the center of the drive shaft surface, and a spring is sleeved around the outer periphery of the drive shaft between the fixing disc and the coupling. One end of the drive shaft is connected to the motor output. A slot is formed on the surface of each rail clip, and a rubber pad is installed inside the slot. A pressure sensor is installed at the contact point between the rubber pad and the slot surface.
[0011] Furthermore, the rail clip has symmetrical adjustment slots on both sides inside, and a connecting plate and a protective shell are slidably connected inside the adjustment slots. One end of the connecting plate and one end of the protective shell are welded to the surface of one set of rail clips.
[0012] Furthermore, a control box is installed on one side of the rail plate, and a protective cover is provided at the connection between the control box and the surface of the rail plate.
[0013] Furthermore, the control box contains a controller.
[0014] Furthermore, a support base is installed at the bottom of the rail.
[0015] Furthermore, both the slot and the docking rod are polygonal structures.
[0016] Furthermore, the connecting rod, fixed plate, spring, ratchet, connecting shaft, and drive shaft constitute a transmission mechanism.
[0017] Furthermore, the slot structure is adapted to the sleeper rail structure.
[0018] (III) Beneficial Effects
[0019] Compared with the prior art, this utility model provides a steel clip-type anti-climbing device for railway sleepers, which has the following beneficial effects:
[0020] (1) This utility model uses a pressure sensor, ratchet, and motor. When the device is in use, the vibration and rotation of the fastening bolt will inevitably cause the rail clamp to move, which will change the squeezing force between the rail and the rail clamp. At this time, the pressure value detected by the pressure sensor will decrease. Then, the operation of the motor can drive the drive shaft to rotate, which in turn drives the coupling to rotate through the ratchet, which in turn drives the connecting rod to rotate, thereby driving the fastening bolt to re-tighten the rail clamp, thereby preventing the sleeper from creeping, ensuring the stability and strength of the structure, and has the advantages of loosening detection and loosening tightening.
[0021] (2) By adopting a protective shell and a protective cover, the fastening screws and nuts used for adjustment and tightening are installed inside the rail clamp when the rail clamp is in use. The fastening screws are provided with a protective shell on their outer periphery. These structural settings can effectively prevent the fastening screws and nuts from being exposed to the outside and causing corrosion, thus improving the protection effect. In addition, the control box and the rail clamp are also provided with a protective cover on their outer side, which can also seal the connection position, prevent structural corrosion from affecting subsequent disassembly and assembly operations, facilitate subsequent maintenance by personnel, and have the advantage of good protection effect. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of the iron-clip type anti-climbing device for railway sleepers proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the transmission mechanism of this utility model;
[0025] Figure 3 This is a schematic diagram of the internal structure of the mounting slot of this utility model;
[0026] Figure 4 This is a structural schematic diagram of the fastening bolt of this utility model.
[0027] In the picture:
[0028] 1. Rail clamp; 2. Protective shell; 3. Connecting plate; 4. Support base; 5. Adjustment groove; 6. Pressure sensor; 7. Rubber pad; 8. Slot; 9. Protective cover; 10. Control box; 11. Motor; 12. Transmission mechanism; 13. Mounting groove; 14. Fastening bolt; 15. Connecting rod; 16. Fixing plate; 17. Spring; 18. Ratchet; 19. Coupling; 20. Drive shaft; 21. Nut; 22. Slot. Detailed Implementation
[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0030] According to an embodiment of this utility model, a rail sleeper anti-climbing device with a metal clip is provided.
[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, the anti-climbing device for rail sleepers according to an embodiment of this utility model includes rail clips 1 and a control box 10. Two sets of rail clips 1 are provided, each with a mounting groove 13 in the middle. Nuts 21 are welded inside the mounting grooves 13, and fastening bolts 14 are threaded between the nuts 21. A slot 22 is provided on one side of the fastening bolt 14, and a connecting rod 15 is installed inside the slot 22. One end of the connecting rod 15 is connected to a drive shaft 20 via a coupling 19. A ratchet 18 is installed inside the coupling 19 on the surface of the drive shaft 20, and the ratchet 18 is fixedly connected to one end of the drive shaft 20. A fixing plate 16 is installed in the middle of the surface of the drive shaft 20. A spring 17 is sleeved between the fixing plate 16 and the coupling 19 and the outer periphery of the drive shaft 20. One end of the drive shaft 20 is connected to the output end of a motor 11. A slot 8 is provided on the surface of the rail clips 1, and a rubber pad 7 is installed inside the slot 8. The rubber pad 7 and the surface of the slot 8 are connected... A pressure sensor 6 is installed at the contact point. The pressure sensor 6 is set up to detect the pressure applied to the track, which is convenient for subsequent processing. The ratchet 18 is the main component of the ratchet 18 mechanism. The ratchet 18 mechanism consists of ratchet 18, pawl, rocker arm, check pawl, and frame. When the rocker arm swings clockwise, the pawl slides over the tooth tip of ratchet 18, and the check pawl inserts into the ratchet groove to prevent rotation. The ratchet 18 stops moving. When the rocker arm swings counterclockwise, the pawl inserts into the ratchet groove and pushes the ratchet 18 to rotate a certain angle. In this way, when the rocker arm swings continuously, the ratchet 18 mechanism can achieve intermittent movement in one direction. Common applications of the ratchet 18 mechanism include: the transverse advancement mechanism of a bullhead bed and the toothed ratchet overtaking mechanism of the rear axle of a bicycle. Since the ratchet 18 and its corresponding ratchet mechanism are frequently used in daily use, they will not be described in detail. Personnel can flexibly choose different types of ratchet 18 mechanisms to achieve unidirectional rotation of coupling 19 and drive shaft 20.
[0032] In one embodiment, the rail clip 1 has symmetrical adjustment grooves 5 on both sides inside. The adjustment grooves 5 are slidably connected to the connecting plate 3 and the protective shell 2. One end of the connecting plate 3 and one end of the protective shell 2 are welded to the surface of one set of rail clips 1. The protective shell 2 is set to protect the fastening screws and prevent rainwater from entering, thereby ensuring that the connection structure will not rust and that it can be disassembled smoothly in the future.
[0033] In one embodiment, a control box 10 is installed on one side of the surface of the rail clip 1. A protective cover 9 is provided at the connection between the control box 10 and the surface of the rail clip 1. The protective cover 9 is provided to seal the connection area to prevent rainwater from entering, thereby ensuring that the connection structure will not rust and thus ensuring that it can be disassembled smoothly in the future.
[0034] In one embodiment, the control box 10 is equipped with a controller. The controller is set up to control the equipment in the structure. Since there are various types of controllers and the application technology is mature, personnel can choose according to their needs and implement it through programming. This will not be elaborated on here. At the same time, for the power supply operation of the equipment inside the control box 10, personnel can choose battery power supply, external line power supply or solar power generation. The specific power supply method can be adjusted according to needs. This will not be elaborated on here.
[0035] In one embodiment, a support base 4 is installed at the bottom of the rail clip 1. The support base 4 is provided to facilitate the fixed installation and use of the rail clip 1.
[0036] In one embodiment, both the slot 22 and the docking rod 15 are polygonal structures. The polygonal structure is designed to enhance the connection effect and ensure that the docking rod 15 can smoothly drive the fastening screw.
[0037] In one embodiment, the docking rod 15, the fixed plate 16, the spring 17, the ratchet 18, the connecting shaft, and the drive shaft 20 constitute the transmission mechanism 12. The transmission mechanism 12 is designed to ensure that the rotation of the docking rod 15 does not affect the rotation of the drive shaft 20. If the motor 11 does not have a locking structure, the rotation of the docking rod 15 will not damage the drive shaft 20. The subsequent operation of the motor 11 can still drive the docking rod 15 to rotate, thereby realizing the driving and fastening operation of the fastening screw.
[0038] In one embodiment, the slot 8 structure is adapted to the sleeper rail structure. The slot 8 structure is designed to effectively fit the sleeper rail, thereby improving its fixing effect, preventing it from creeping, and ensuring its performance.
[0039] Working Principle: In actual use, the support base 4 can be fixed to the ground around the sleeper rail, facilitating subsequent anti-climbing treatment of the sleeper rail. Then, the sleeper rail can be placed in the middle position of the two sets of rail clips 1. At this time, the rail can be clamped and fixed by the slots 8 on the surface of the rail clip 1. Then, the fastening bolts 14 can be inserted through the mounting slots 13 on the surface of the rail clip 1. At this time, the fastening bolts 14 can pass through the two sets of nuts 21 in sequence. Since the nuts 21 are welded and fixed, the distance between the two sets of rail clips 1 can be adjusted by rotating the fastening bolts 14, so that the rail clips 1 can firmly clamp and fix the rail. When the rail is clamped, it will squeeze the rubber pad 7 in contact with it. The rubber pad 7 can play a certain buffering role to avoid structural hard contact leading to breakage. At the same time, the force acting on the rubber pad 7 can be transmitted to the pressure sensor 6, thereby increasing the pressure detected by the pressure sensor 6. After the fastening bolts 14 are installed, the control box 10 can be installed on the side of the rail clip 1. At this time, the motor 11 can be connected through the transmission mechanism 12 and the connecting rod 15. The fastening bolt 14 is connected to the slot 22 on its surface. When the fastening bolt 14 rotates due to the vibration of the track, it will drive the connecting rod 15 to rotate. The connecting rod 15 can drive the coupling 19 on its surface to rotate. When the coupling 19 rotates, the presence of the ratchet 18 will cause the component connected to the drive shaft 20 to rotate in one direction. At this time, the coupling 19 will not rotate synchronously, thus preventing the rotation of the connecting rod 15 from causing the output end of the motor 11 to rotate through the coupling 19. However, the vibration and rotation of the fastening bolt 14 will inevitably cause the output end of the motor 11 to rotate. When the track clamp 1 moves, the squeezing force between the track and the track clamp 1 changes. At this time, the pressure value detected by the pressure sensor 6 decreases. Then, the operation of the motor 11 drives the drive shaft 20 to rotate, which in turn drives the coupling 19 to rotate through the ratchet 18, which in turn drives the connecting rod 15 to rotate, thereby driving the fastening bolt 14 to re-tighten the track clamp 1, thus preventing the sleeper from creeping and ensuring safe use. The device as a whole has the advantages of good protection, loosening detection, and loosening tightening.
[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Anti-creep device for fastening a rail to a sleeper, comprising a rail clip (1) and a control box (10), characterized in that, The rail clips (1) are provided in two sets. Each set of rail clips (1) has a mounting groove (13) in the middle. Nuts (21) are welded inside the mounting grooves (13). Fastening bolts (14) are threaded between the nuts (21). A slot (22) is provided on one side of the fastening bolt (14). A connecting rod (15) is installed inside the slot (22). One end of the connecting rod (15) is connected to the drive shaft (20) via a coupling (19). A coupling (19) located on the surface of the drive shaft (20) contains a... A ratchet (18) is fixedly connected to one end of a drive shaft (20). A fixed disc (16) is installed in the middle of the surface of the drive shaft (20). A spring (17) is sleeved between the fixed disc (16) and the coupling (19) on the outer periphery of the drive shaft (20). One end of the drive shaft (20) is connected to the output end of a motor (11). A slot (8) is opened on the surface of the rail clip (1). A rubber pad (7) is installed inside the slot (8). A pressure sensor (6) is installed at the contact position between the rubber pad (7) and the surface of the slot (8).
2. The iron-clad tie tie-buck prevention device according to claim 1, characterized in that, The rail clip (1) has symmetrical adjustment grooves (5) on both sides inside. A connecting plate (3) and a protective shell (2) are slidably connected inside the adjustment groove (5). One end of the connecting plate (3) and one end of the protective shell (2) are welded to the surface of one set of rail clips (1).
3. The anti-climbing device for iron-clip type railway sleepers according to claim 1, characterized in that, A control box (10) is installed on one side of the surface of the rail clip (1), and a protective cover (9) is provided at the connection between the control box (10) and the surface of the rail clip (1).
4. The ironclad tie tie anti -creep device of claim 1, wherein, The control box (10) is equipped with a controller.
5. The ironclad tie tie anti -creep device of claim 1, wherein, A support base (4) is installed at the bottom of the rail clip (1).
6. The anti-climbing device for iron-clip type railway sleepers according to claim 1, characterized in that, Both the slot (22) and the connecting rod (15) are polygonal structures.
7. The ironclad tie tie anti -creep device of claim 1, wherein, The connecting rod (15), the fixed plate (16), the spring (17), the ratchet (18), the connecting shaft and the drive shaft (20) constitute the transmission mechanism (12).
8. The ironclad tie tie anti -creep device of claim 1, wherein, The slot (8) structure is adapted to the sleeper rail structure.
Citation Information
Patent Citations
Clip-like anti-climb device of steel track
CN2175778Y