A rail bow-shaped eyeless clamp

Abstract

This utility model provides a rail bow-shaped clamp without eyelets, including a bow-shaped clamp body, clamping components respectively disposed at both ends of the bow-shaped clamp body, and a fastening device for driving the clamping components to clamp the rail. The fastening device includes a fastening bolt passing through the end of the bow-shaped clamp body, a fastening nut for providing clamping force, a spring washer, and an anti-loosening nut for locking, sequentially sleeved on the fastening bolt. The bow-shaped clamp body is also provided with an anti-drop bolt and a limit clip for limiting the movement space of the clamping components and preventing them from falling off the rail when the fastening device fails. This utility model tightens and fixes the rail through the cooperation of the clamping components and the fastening device, and through the cooperation of the anti-drop bolt and the limit clip, limits the movement space of the clamping components while preventing them from falling off the rail when the fastening device fails, ensuring the stability and safety of the railway track.

Description

Technical Field

[0001] This utility model relates to the field of rail fixing technology, specifically to a rail bow-shaped eyeless clamp. Background Technology

[0002] Steel rails are critical components of railway and urban rail transit. Trains operate at high speeds and under heavy loads, and are exposed to complex environments for extended periods, making the rail surface and welds prone to damage or cracks. When rail replacement is not possible in time, or when the damage is at the weld location, reliable clamps are needed to provide emergency fixation and clamping to prevent rail breakage due to further damage or weld defects, thus avoiding major safety accidents such as train derailments and ensuring the safety of railway transportation. Due to its structural characteristics and clamping force properties, the bow-shaped eyeless clamp can provide effective clamping and support at the damaged area, limiting rail deformation, and is one of the important tools for emergency treatment of damaged rails.

[0003] During the use of traditional bow-shaped eyeless clamps, it was found that the fastening device was not perfect. Under the vibration and impact generated by train operation, the bolts and nuts in the fastening device were prone to loosening, resulting in a decrease in the clamping force of the clamping components, which could not effectively fix the rails and affected the normal use of the rails. Utility Model Content

[0004] The purpose of this utility model is to provide a rail bow-shaped eyeless clamp to overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rail bow-shaped clamp without eyelets includes a bow-shaped clamp body, clamping components respectively disposed at both ends of the bow-shaped clamp body, and a fastening device for driving the clamping components to clamp the rail; the fastening device includes a fastening bolt passing through one end of the bow-shaped clamp body and rotatably connected to the end of the bow-shaped clamp body by a thread, a fastening nut for providing clamping force, a spring washer, and an anti-loosening nut for locking, which are sequentially sleeved on the fastening bolt; the bow-shaped clamp body is also provided with an anti-drop bolt and a limit clip for limiting the movement space of the clamping components and preventing them from falling off the rail when the fastening device fails.

[0006] Furthermore, the anti-drop bolt is rotatably connected to the bow-shaped clamp body through a threaded hole welded to the bow-shaped clamp body, and is located below the fastening bolt and parallel to the fastening bolt.

[0007] Furthermore, the limiting card is welded and fixed to the bow-shaped clamp body, located directly below the clamping component.

[0008] Furthermore, the limiting card can be hooked onto the bottom of the rail for initial positioning during fixture installation.

[0009] Furthermore, after installation, the bottom surface of the limiting card is parallel to the top surface of the bottom of the rail, and the distance between the two is 5-6mm.

[0010] As can be seen from the above technical solutions, this utility model uses the cooperation of clamping components and fastening devices to tighten and fix the rails. By using anti-drop bolts and limit clips, the movement space of the clamping components is limited, and the fastening devices are prevented from falling off the rails when they fail, thus ensuring the stability and safety of the railway track. The limit clips can be hooked onto the bottom of the rails for initial positioning during clamp installation, making installation and disassembly more convenient and improving work efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the adjusting device of this utility model; Figure 2 This is a schematic diagram showing the usage state of the adjustment device of this utility model; In the diagram: 1. Bow-shaped clamp; 2. Clamping component; 3. Fastening device; 31. Fastening bolt; 32. Fastening nut; 33. Spring washer; 34. Anti-loosening nut; 4. Anti-drop bolt; 5. Limiting clip. Detailed Implementation

[0012] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0013] like Figure 1-2 The rail bow-shaped eyeless clamp shown includes a bow-shaped clamp body 1, clamping components 2 respectively disposed at both ends of the bow-shaped clamp body 1, and a fastening device 3 for driving the clamping components 2 to clamp the rail. The end face of the clamping component 2 can fit tightly against the surface of the rail.

[0014] The bow-shaped clamp 1 described in this preferred embodiment is typically made of high-strength metal material, has a bow shape, and possesses a certain degree of elasticity and toughness. This shape design allows the clamp to better adapt to the shape of the rail and provide uniform clamping force. In practical use, the bow-shaped structure design gives it a lever-like effect. One end of the clamp with the clamping component 2 is the fixed end, and the other end with the fastening device 3 is the operating end. When an external force is applied to the operating end, according to the lever principle, an amplified clamping force is generated at the contact point between the clamp and the rail, thereby firmly fixing the rail. At this time, the clamping component is in close contact with the surface of the rail, and due to the clamping force, a large frictional force is generated between them. This frictional force can effectively prevent the rail from moving in the horizontal and vertical directions. Even if a train passes and generates huge impact and vibration, the rail can remain in place under the action of the frictional force of the clamp, ensuring the geometry and stability of the track.

[0015] Specifically, the fastening device 3 includes a fastening bolt 31 that passes through the end of the bow-shaped clamp 1 and is rotatably connected to the end of the bow-shaped clamp 1 via a thread, a fastening nut 32 for providing clamping force, a spring washer 33, and an anti-loosening nut 34 for locking, all sequentially sleeved on the fastening bolt 31. During use, the bolt, nut, and spring washer form a tight connection, preventing the bolt from loosening under vibration and impact, ensuring the stability and reliability of the clamp. This further reduces the operational risks of the train.

[0016] Meanwhile, the bow-shaped clamp 1 described in this preferred embodiment is also provided with an anti-fall bolt 4 and a limiting clip 5 to limit the movement space of the clamping component 2 and prevent it from falling off the rail when the fastening device 3 fails. Specifically, the anti-fall bolt 4 is rotatably connected to the bow-shaped clamp 1 through a threaded hole welded to it, and is located below and parallel to the fastening bolt 31; the limiting clip 5 is welded and fixed to the bow-shaped clamp 1 and is located directly below the clamping component 2. The anti-fall bolt 4 and the limiting clip 5 work together to effectively reduce the movement space of the clamping component 2, and when the fastening bolt 31 loosens unexpectedly, the anti-fall bolt 4 and the limiting clip 5 will hang on the bottom of the rail, cooperating with the bow-shaped clamp and the fastening bolt 3 to ensure that the clamping component will not fall off, and still provide some lateral restraint to the rail; this can avoid damage to vehicles and other facilities and equipment caused by the falling of the eyeless clamp in case of an emergency, and effectively ensure the safety of passengers.

[0017] The bow-shaped eyeless clamp described in this preferred embodiment is suitable for the connection, fixation, and emergency repair of rails in railways, urban rail transit, etc. In specific operation, the limiting clip 5 can hook onto the bottom of the rail for initial positioning during clamp installation, facilitating installation and alignment. The specific installation and usage method is as follows: First, adjust the length of the fastening bolt 31 and suspend the limiting clip 5 on the bottom of the rail for initial positioning; then, after adjusting the clamping component 2 and the bow-shaped clamp to a reasonable position, retighten the fastening bolt 31 to the required torque value; simultaneously retighten the fastening nut 32 to ensure the fastening effect of the fastening bolt under vibration and impact; finally, retighten the anti-drop bolt 4 to ensure that the clamping component 2 is tightly fitted to the side of the rail; after installation, the bottom surface of the limiting clip 5 is parallel to the top surface of the rail bottom, with a distance of 5mm between them.

[0018] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rail arch-shaped eyeless clamp, characterized in that, It includes an arc-shaped clamp (1), clamping components (2) respectively disposed at both ends of the arc-shaped clamp (1), and a fastening device (3) for driving the clamping components (2) to clamp the rail. The fastening device (3) includes a fastening bolt (31) that passes through the end of the bow-shaped clamp (1) and is rotatably connected to the end of the bow-shaped clamp (1) by a thread, a fastening nut (32) for providing clamping force, a spring washer (33) and a locking nut (34) for locking are sequentially sleeved on the fastening bolt (31). The bow-shaped clamp (1) is also provided with anti-drop bolts (4) and limit clips (5) for limiting the movement space of the clamping component (2) and preventing it from falling off the rail when the fastening device (3) fails.

2. The rail bow-shaped eyeless clamp according to claim 1, characterized in that: The anti-drop bolt (4) is rotatably connected to the bow-shaped clamp (1) through a threaded hole welded to the bow-shaped clamp (1), and is located below the fastening bolt (31) and parallel to the fastening bolt (31).

3. The rail bow-shaped eyeless clamp according to claim 1, characterized in that: The limiting card (5) is welded and fixed to the bow-shaped clamp (1) and is located directly below the clamping component (2).

4. The rail bow-shaped eyeless clamp according to claim 3, characterized in that: The limiting card (5) can be hooked onto the bottom of the rail for initial positioning during fixture installation.

5. The rail bow-shaped eyeless clamp according to claim 4, characterized in that: After installation, the bottom surface of the limit card (5) is parallel to the top surface of the bottom of the rail, and the distance between the two is 5-6mm.

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