Reinforced steel rail joint
By using spring washers, flat washers and pin hole design in the reinforced rail joints, combined with adhesive connection, the problem of loose splints is solved, and the long-term stability and convenient maintenance of the joint splints are achieved.
Patent Information
- Application Number
- CN202422619798.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing reinforced rail joint splints are prone to loosening during long-term use, resulting in poor anti-loosening effect and increased maintenance workload.
A multiple anti-loosening design is adopted, including a combination of spring washers and flat washers between the bolts and the joint clamps, combined with adhesive connection to enhance the connection stability between the clamps and the rails, and prevent the bolts from loosening through the pin holes and pins.
It effectively prevents the joint splint from loosening in a long term and maintains the designed torque. It has a simple structure and is easy to install and disassemble, reducing maintenance workload.
Smart Images
Figure CN223386471U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rail transportation, in particular to a reinforced rail joint. Background Art
[0002] Currently, when rail joints are required to be seamless without welds but without gaps, reinforced rail joint plates and bolts are used. These reinforced rail joint plates typically have high torque, ensuring the stability of the plate. Alternatively, the plate can be glued to the rail to strengthen the connection. However, conventional reinforced rail joints (commonly known as frozen joints) offer limited anti-loosening properties, and the plate can easily loosen over time, increasing maintenance workload. Summary of the Invention
[0003] The purpose of the utility model is to provide a reinforced rail joint based on the above-mentioned deficiencies of the prior art, which improves the structural stability of the joint clamping plate and avoids loosening through multiple anti-loosening designs.
[0004] The purpose of this utility model is achieved by the following technical solutions:
[0005] A reinforced rail joint comprises joint plates arranged on both sides of the rail, and bolts passing through the joint plates, wherein the bolts are fixed to the joint plates by nuts, and is characterized in that a pin hole is provided at the tail end of the bolt, a pin is provided in the pin hole, a spring washer and a flat washer are provided between the bolt and the joint plates, and a spring washer and a flat washer are provided between the nut and the joint plates.
[0006] The joint clamping plate is adhesively connected to the rail.
[0007] In a direction from the bolt to the joint clamping plate, the flat washers and the spring washers are arranged in sequence from the outside to the inside.
[0008] From the nut to the joint clamping plate, the flat washers and the spring washers are arranged in sequence from the outside to the inside.
[0009] The advantages of the utility model are: through the multiple anti-loosening designs, the joint clamp is ensured to be stable for a long time and not easy to loosen, and the designed torque can be maintained for a long time; the structure is simple and reasonable, and it is easy to install and disassemble, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural diagram of the utility model;
[0011] Figure 2 for Figure 1 Middle AA section view. DETAILED DESCRIPTION
[0012] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
[0013] like Figure 1-2 As shown in the figure, marks 1-9 respectively represent: rail 1, joint clamp 2, bolt 3, nut 4, adhesive layer 5, pin hole 6, pin 7, flat washer 8, and spring washer 9.
[0014] Example: Figure 1 and Figure 2 As shown, the reinforced rail joint in this embodiment is used to improve the structural stability of the joint clamping plate 2, ensuring that the designed torque is maintained over a long period of time. In this embodiment, a joint clamping plate 2 is provided on both sides of the rail 1. The joint clamping plate 2 is used to ensure the structural integrity between the front and rear rails on the line. Specifically, one portion of the joint clamping plate 2 is connected to the front rail, and the other portion is connected to the rear rail, thereby connecting the front and rear rails into a single structure.
[0015] like Figure 2 As shown, the joint plate 2 is connected to the rail 1 by a through-bolt 3, which is locked and fixed by a nut 4. An adhesive layer 5 is used to form an adhesive connection between the joint plate 2 and the rail 1, which improves the structural stability of the joint plate 2 and serves as a first anti-loosening measure.
[0016] like Figure 2 As shown, a through pin hole 6 is opened at the tail end of the bolt 3, and a through pin 7 is inserted into the through pin hole 6 to prevent the bolt 3 from loosening. Since the torque applied by the bolt 3 is applied to the joint clamping plate 2, the structural stability of the joint clamping plate 2 can be further improved, which serves as a second anti-loosening measure.
[0017] like Figure 2 As shown, a flat washer 8 and a spring washer 9 are arranged from the outside to the inside between the bolt 3 and the joint clamp 2 on its corresponding side. At the same time, a flat washer 8 and a spring washer 9 are also arranged from the outside to the inside between the nut 4 and the joint clamp 2 on its corresponding side to prevent loosening. As a third anti-loosening measure, it ensures that the joint clamp 2 is not easy to loosen.
[0018] Although the above embodiments have described the concepts and embodiments of the present invention in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, so they are not described here one by one.
Claims
1. A reinforced rail joint, comprising joint plates provided on both sides of the rail, and bolts passing through the joint plates, wherein the bolts are fixed to the joint plates by nuts, and characterized in that: A pin hole is provided at the tail end of the bolt, a pin is provided in the pin hole, a spring washer and a flat washer are provided between the bolt and the joint clamping plate, and a spring washer and a flat washer are provided between the nut and the joint clamping plate.
2. The reinforced rail joint according to claim 1, characterized in that: The joint clamping plate is adhesively connected to the rail.
3. The reinforced rail joint according to claim 1, characterized in that: In a direction from the bolt to the joint clamping plate, the flat washers and the spring washers are arranged in sequence from the outside to the inside.
4. The reinforced rail joint according to claim 1, characterized in that: From the nut to the joint clamping plate, the flat washers and the spring washers are arranged in sequence from the outside to the inside.