Temporary shuttle head for line reinforcement
By designing a temporary shuttle head that includes a shuttle head sleeve and bolts, the problem of loosening and misalignment of wooden shuttle heads in railway construction was solved, achieving efficient and safe railway line reinforcement, reducing construction costs and improving construction efficiency.
Patent Information
- Application Number
- CN202422873573.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing wooden shuttle heads have problems such as loosening, sliding and misalignment in railway construction, which leads to safety hazards and low construction efficiency. There is a lack of cost-effective and easy-to-install temporary shuttle head solutions.
Design a temporary shuttle head including a shuttle head sleeve and bolts. The shuttle head sleeve is a hollow wedge-shaped structure with a fixing ring and screw holes at the rear end. It is fixed to the fastening rail by bolts. The side of the fixing ring is stepped and is made of 10mm thick steel plate welded together to simplify the installation process.
Without adding mechanical equipment, the fixing reliability of the rail clip head is improved, the risk of loosening is reduced, the construction speed and safety are increased, the cost is reduced and the construction efficiency is improved.
Smart Images

Figure CN223496940U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of railway engineering line reinforcement equipment, and specifically relates to a temporary shuttle for line reinforcement. Background Technology
[0002] With rapid economic development and the expansion of the road network, the number of road-rail intersections is increasing. Furthermore, with advancements in engineering technology and rising demands for traffic efficiency, the previously widely used level crossings are no longer sufficient. In this context, jacking box culverts, which pass under existing railways, have become widely used due to their advantages such as shorter construction time, smaller land occupation, relatively lower engineering workload, and cost-effectiveness.
[0003] Before box culvert jacking construction, the existing railway line needs to be reinforced. Currently, the 3-5-3 rail clamping and processing of longitudinal and transverse steel beams for transverse lifting and longitudinal cantilever track reinforcement system is widely used. The ends of the reinforcement system are usually protected and fixed with wooden shuttle heads, U-bolts, and fastening plates. However, this method has significant drawbacks. First, the fastening plates fixing the inclined surface of the shuttle head are prone to loosening and displacement under the vibration of train operation, requiring frequent inspection and reinforcement during construction. Due to the inconsistent quality of wooden shuttle heads and the lack of an effective connection between the shuttle head and the rail clamping, there is also a risk of the shuttle head slipping. Second, the shuttle head is inevitably subject to trampling and bumping at the construction site. Poorly designed shuttle heads are prone to displacement and tilting in such situations.
[0004] In actual construction, it is frequently observed that these shuttle heads experience issues such as loose fasteners, shuttle head misalignment, and even fasteners lifting up above the rail surface elevation, posing a potential safety hazard to train operations on operational lines. Therefore, on-site manual inspection and reinforcement of the shuttle heads is often used to maintain their good working condition. Reinforcement work often involves a large number of workers and a fast pace, requiring frequent re-inspection and adjustment of the shuttle heads in subsequent construction processes, resulting in a loss of manpower and resources. In rapid railway construction, frequent train traffic demands a certain speed from workers to avoid trains, making it easy for them to overlook the shuttle head devices located at the ends in the rush. Since the shuttle head is a weak point in the reinforcement system, this poses a safety hazard to construction on operational lines.
[0005] Therefore, to ensure the safe and rapid completion of construction tasks within the valuable time available for operating line work, it is essential to address this structural weakness and ensure the rail-fastening shuttle is secure and reliable. However, there is currently a lack of suitable, inexpensive, easy-to-install temporary shuttles that allow workers to quickly learn how to use them. Utility Model Content
[0006] In order to solve the above problems, the purpose of this utility model is to provide a temporary shuttle head for line reinforcement that is low in cost, simple in structure, easy to use, reliable and reusable.
[0007] To achieve the above objectives, the temporary shuttle head for line reinforcement provided by this utility model includes a shuttle head sleeve and bolts; wherein the front part of the shuttle head sleeve is a hollow wedge-shaped structure, the rear end face is open, and a fixing ring is provided on the outer side of the rear end to fit around the end of the rail, and a screw hole is formed in the middle of each of the two sides of the fixing ring; two bolts are respectively installed in the two screw holes on the fixing ring.
[0008] The side of the fixing ring is stepped, and the lower width is greater than the upper width.
[0009] The shuttle head sleeve is made of 10mm thick steel plate welded together.
[0010] The upper width of the fixing ring is 4cm to 6cm wider than the top width of the end of the fastening rail.
[0011] Compared with existing construction techniques, the advantages of the temporary shuttle head for railway line reinforcement provided by this utility model are: it can fix the rail clamping shuttle head with a small amount of work without adding extra mechanical equipment during railway line reinforcement, avoiding safety hazards caused by loosening of the shuttle head and fixing parts, improving construction efficiency, reducing the probability of problems, accelerating construction speed, and having a simple structure, flexible operation, high safety, low cost, easy production and reusability, thus improving construction efficiency, enhancing safety and reducing construction costs. Attached Figure Description
[0012] Figure 1 Elevation view of the temporary shuttle head for line reinforcement provided by this utility model.
[0013] Figure 2 Side view of the temporary shuttle head for line reinforcement provided by this utility model.
[0014] Figure 3 A plan view of the temporary shuttle head for line reinforcement provided by this utility model.
[0015] Figure 4 A three-dimensional view of the temporary shuttle head for line reinforcement provided by this utility model.
[0016] Figure 5 Elevation view of the temporary shuttle head for line reinforcement provided by this utility model in use.
[0017] Figure 6 A side view of the temporary shuttle head for line reinforcement provided by this utility model in use.
[0018] Figure 7 A plan view of the temporary shuttle head for line reinforcement provided by this utility model in use.
[0019] Figure 8 A three-dimensional view of the temporary shuttle head for line reinforcement provided by this utility model in use. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following embodiments are used to illustrate this utility model, but are not intended to limit its scope.
[0021] like Figures 1-8 As shown, the temporary shuttle head for line reinforcement provided by this utility model includes a shuttle head sleeve 2 and bolts 1; wherein the front part of the shuttle head sleeve 2 is a hollow wedge-shaped structure, the rear end face is open, and a fixing ring is provided on the outer side of the rear end to fit outside the end of the fastening rail 3, and a screw hole is formed in the middle of the two sides of the fixing ring; two bolts 1 are respectively installed in the two screw holes on the fixing ring.
[0022] The side of the fixing ring is stepped, and the lower width is greater than the upper width.
[0023] The shuttle head sleeve 2 is made of steel plate with a thickness of 10mm by welding.
[0024] The upper width of the fixing ring is 4cm to 6cm wider than the top width of the end of the fastening rail 3.
[0025] The method of using the temporary shuttle head for line reinforcement provided by this utility model is described below:
[0026] First, the rail clip 3 needs to be installed at the designated position on the existing line. Then, the fixing ring at the rear end of the shuttle sleeve 2 is placed on the outside of the end of the rail clip 3. Next, the two bolts 1 are inserted into the two screw holes on the fixing ring. Then, under the condition that the installation angle of the shuttle sleeve 2 is appropriate, the bolts 1 in the screw holes are tightened until the end of the bolt 1 is pressed against the side of the rail clip 3. Finally, ballast is backfilled around the shuttle sleeve 2 and tamped down to make it compact. This completes the installation and fixing of the shuttle sleeve 2.
[0027] The above description is only a preferred embodiment of this utility model. It should be noted that construction technicians in the field can master its use after simple training, and can also make several improvements and modifications. These improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A temporary shuttle head for line reinforcement, characterized in that: The temporary shuttle for line reinforcement includes a shuttle sleeve (2) and bolts (1); the front part of the shuttle sleeve (2) is a hollow wedge structure, the rear end face is open, and a fixing ring is provided on the outer side of the rear end to fit outside the end of the fastening rail (3), and a screw hole is formed in the middle of the two sides of the fixing ring; two bolts (1) are respectively installed in the two screw holes on the fixing ring.
2. The temporary shuttle head for line reinforcement according to claim 1, characterized in that: The side of the fixing ring is stepped, and the lower width is greater than the upper width.
3. The temporary shuttle head for line reinforcement according to claim 1, characterized in that: The shuttle head sleeve (2) is made of steel plate with a thickness of 10mm by welding.
4. The temporary shuttle head for line reinforcement according to claim 1, characterized in that: The upper width of the fixing ring is 4cm to 6cm wider than the top width of the end of the fastening rail (3).