Integrated adjustable trackside leaky cable protection device
The trackside leaky cable protection device, which integrates a clamp and a protective cover for embedded connection, solves the problems of complex structure and easy damage of existing devices, and achieves efficient and stable leaky cable installation and protection, adapting to different terrain conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-24
AI Technical Summary
Existing trackside leaky cable installation devices have complex structures, low installation efficiency, and are susceptible to the effects of high temperatures and rainfall, impacts from unidentified objects, trampling by people, and high-speed airflow, posing a risk of the leaky cable loosening or falling off.
The trackside cable leakage protection device adopts an integrated clamp and protective cover embedded connection. The integrated cup-shaped base and clamp are adjustable to adapt to different terrains. Combined with the non-metallic protective cover and heat dissipation hole design, it improves installation efficiency and stability.
It simplifies the installation process, reduces construction errors, enhances the stability and protection of leaky cables, extends service life, and ensures the security and quality of wireless transmission.
Smart Images

Figure CN224164571U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of leaky cable installation technology, specifically relating to an integrated adjustable trackside leaky cable protection device. Background Technology
[0002] In suburban railways and urban rail transit, the signaling system employs a communication-based train control system (CBTC) to achieve continuous, bidirectional, real-time, and high-capacity accurate transmission of train-to-ground information, ensuring operational safety. The transmission quality of train-to-ground wireless communication directly determines the efficiency and accuracy of train operation control. Currently, LTE (Long Term Evolution) technology is widely used in various engineering projects due to its numerous advantages, including strong anti-interference capabilities, low latency, wide coverage, priority guarantee, and support for high-speed operation. Leaky cables, as the transmission medium for train-to-ground wireless communication in LTE systems, are normally installed in pairs on the tunnel sidewall using clamps, interacting in real-time with the train's roof antenna. However, in elevated or ground-level sections, due to limitations in equipment clearance and civil engineering installation conditions, one of the two leaky cables is installed on a cable support, while the other is fixed to the trackside ballast foundation, transmitting train operation information through the train's undercarriage antenna and the trackside leaky cable. When leaky cables are installed beside the track, there are two main problems. First, the open operating environment makes the leaky cables susceptible to damage from high temperatures, rain, impacts from unidentified objects, and trampling by people. Second, the high-speed airflow that inevitably forms during train operation can cause vibrations to the installation components, posing a potential risk of the leaky cables becoming loose or falling off.
[0003] The existing protective device has a complex structure, requiring the clamps and protective covers to be fixedly connected to an independent bracket base by bolts. Multiple limiting holes are provided on the protective cover and bracket panel, which greatly reduces the installation efficiency. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this utility model provides an integrated adjustable trackside cable protection device. It adopts an integrated clamp, which is embeddedly connected to the protective cover. The installation height of the cable can be flexibly adjusted according to the terrain environment to meet the construction and installation requirements under certain track curves and slope conditions. It is easy to install and improves installation efficiency.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An integrated adjustable trackside cable leakage protection device includes an integral cup-shaped base, which is fixed to the ground and has an integral clamp connected to it.
[0007] The integrated clamp includes a clamp handle, and arc-shaped leaky cable clamping parts are respectively provided on both sides of the top of the clamp handle. The leaky cable is placed between the two leaky cable clamping parts. A horizontal clamping end flange plate is provided on the outside of the leaky cable clamping parts.
[0008] The integrated clamp is provided with an inverted U-shaped n-type wave-transparent non-metallic protective cover. The inner side of the two flange plates of the n-type wave-transparent non-metallic protective cover is provided with positioning heads. A limiting head is provided above the positioning heads. The end flange plate of the clamp is provided in the groove between the positioning heads and the limiting heads.
[0009] The integral cup-shaped base includes a rectangular base, on which a cup wall is provided;
[0010] The cup wall has an inner socket, and the clamp handle is disposed in the socket;
[0011] The clamp handle is provided with a clamp handle bolt hole, and the cup wall is provided with a cup wall bolt hole. The movable adjusting bolt passes through the cup wall bolt hole and the clamp handle bolt hole, and the connection between the clamp handle and the cup wall is realized through the cup wall clamp adjusting nut; the cup wall bolt hole and the clamp handle bolt hole are elongated.
[0012] Furthermore, the rectangular base of the integral cup-shaped base is provided with base fixing bolt holes. The base fixing bolt holes are elongated and have foot fixing bolts inside, so as to realize the connection between the integral cup-shaped base and the ground.
[0013] Furthermore, the positioning head is an inverted right-angled trapezoid with the hypotenuse located on the inner side.
[0014] Furthermore, the top of the n-type transparent non-metallic protective cover is provided with a curved top, which is an arch shape that is high in the middle and low on both sides.
[0015] Furthermore, heat dissipation holes are provided on the top of the curved surface of the protective cover.
[0016] Furthermore, a heat dissipation hole protective plate is provided on the heat dissipation hole, and the heat dissipation hole protective plate is inverted U-shaped.
[0017] Furthermore, the cup wall is trapezoidal.
[0018] The beneficial effects of this utility model are:
[0019] 1) The present invention integrates the leaky cable clamp and the mounting bracket, and is embeddedly connected to the protective cover. It not only plays a basic role in supporting and fixing the leaky cable, but also reduces the number of hole bolt connections between the clamp, bracket and protective cover in the traditional method. This reduces the amount of construction work and avoids the problem of misalignment of holes and failure to fit the installation caused by construction errors, thereby reducing material and installation costs.
[0020] 2) The integrated base and integrated mounting bracket of this utility model are adjustable in both vertical and horizontal directions, which can adapt to the misalignment correction of leaky cable installation under different curve radii and line slope conditions, making on-site construction more flexible and convenient.
[0021] 3) The leaky cable protection cover of this utility model is equipped with a curved top plate, heat dissipation holes and an auxiliary protective plate. The curved top plate has a drainage function, which can effectively reduce the damage to the leaky cable and extend its service life.
[0022] 4) The overall structure of this utility model is simple and can be manufactured in one piece. It is convenient and quick to implement on site and maintain later. It can stabilize and protect the leaky cable, and further ensure the security and quality of wireless transmission information. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a front view of the integral cup-shaped base of this utility model;
[0025] Figure 3 This is a schematic diagram of the top surface of the integral cup-shaped base of this utility model;
[0026] Figure 4 This is a front view of the integrated clamp and the n-type wave-transparent non-metallic protective cover of this utility model;
[0027] In the diagram, 1-integral cup-shaped base, 2-base fixing bolt hole, 3-foot fixing bolt, 4-cup wall, 5-socket, 6-cup wall bolt hole, 7-adjustable bolt, 8-cup wall clamp adjusting nut, 9-clamp handle, 10-clamp handle bolt hole, 11-integral clamp, 12-clamp end flange plate, 13-leakage cable clamp, 14-leakage cable, 15-positioning clamp, 16-limiting clamp, 17-n-type translucent non-metallic protective cover, 18-curved top of protective cover, 19-heat dissipation hole of protective cover, 20-protective plate of heat dissipation hole of protective cover. Detailed Implementation
[0028] The present invention will now be described in detail with reference to specific embodiments.
[0029] This utility model adopts an integrated clamp, which is embeddedly connected to the protective cover. The installation height of the leaky cable can be flexibly adjusted according to the terrain environment to meet the construction and installation requirements under certain line curves and slope conditions on site. It is easy to install and improves installation efficiency.
[0030] Leaky cable 14 is installed outside the track and ballast bed, below the rail surface, approximately 20-30cm away from the rail. For example... Figure 1 As shown, the integrated adjustable trackside cable leakage protection device of this utility model includes an integral cup-shaped base 1, which is fixed to the track bed foundation surface. The integral cup-shaped base 1 is the foundation of the entire device and has sufficient load-bearing capacity, deformation capacity and load transfer capacity to meet the required strength, rigidity and stability. It transfers all the load of this device to the base and ensures that it is not damaged under working conditions and under moderate overload.
[0031] like Figure 2 , 3 As shown, the integral cup-shaped base 1 includes a rectangular base, on which a cup wall 4 is provided; the cup wall 4 is trapezoidal, which can meet the requirements of transmitting load and ensuring the stability of the integral clamp 11. The height of the cup wall 4 can be coordinated and matched with the size, position and length of the bolt hole 6 of the cup wall according to the specific actual needs.
[0032] The rectangular base has mounting bolt holes 2, which are elongated and house anchor bolts 3, connecting the integral cup-shaped base 1 to the ground. The integral cup-shaped base 1 is manufactured as a single piece with pre-drilled holes, eliminating the need for on-site adjustments and reprocessing, simplifying the process and saving time. The mounting bolt holes 2 of the integral cup-shaped base 1 are elongated and can be adjusted along the cross-section of the cable. During on-site implementation, fine adjustments can be made based on the position of the anchor bolts 3, allowing for flexible repositioning, facilitating construction, and correcting for errors.
[0033] like Figure 1 , 4 As shown, an integrated cup-shaped base 1 is connected to an integrated clamp 11; the integrated clamp 11 includes a clamp handle 9, and arc-shaped leaky cable clamping parts 13 are respectively provided on both sides of the top of the clamp handle 9. The leaky cable 14 is placed between the two leaky cable clamping parts 13; a horizontal clamping end flange plate 12 is provided on the outside of the leaky cable clamping parts 13; the inside of the leaky cable clamping parts 13 forms an arc shape that matches the shape of the leaky cable 14, and the top opening facilitates the quick installation and clamping of the leaky cable, while also limiting the displacement of the leaky cable 14 and ensuring the stable installation of the leaky cable;
[0034] The integrated clamp 11 is equipped with an inverted U-shaped n-type translucent non-metallic protective cover 17. The n-type translucent non-metallic protective cover 17 serves to protect against rain and snow, high-temperature radiation, and external loads. It can withstand an external load of 10KN / m or other external loads such as trampling along the longitudinal direction. The n-type translucent non-metallic protective cover 17 and the integrated clamp 11 are made of non-metallic materials with reliable strength, rigidity, load-bearing capacity, and good translucent performance.
[0035] The n-type translucent non-metallic protective cover 17 has a positioning clip 15 on the inner side of the two flange plates, and a limit clip 16 is provided above the positioning clip 15; the clamp end flange plate 12 is located in the groove between the positioning clip 15 and the limit clip 16; the positioning clip 15 is an inverted right-angled trapezoid with the hypotenuse on the inner side.
[0036] The flange plate 12 and the integrated clamp 11 are manufactured in one piece. The positioning clamp head 15 adopts a right-angled trapezoidal shape, which facilitates the secure installation of the n-type transparent non-metallic protective cover 17. It also serves as a drainage device for the non-metallic protective cover, preventing rainwater from flowing into the socket 5 of the integral cup-shaped base 1 through the integrated clamp 11, thus avoiding rainwater erosion. The limiting clamp head 16 is a limiter. Its protruding length and cross-sectional size must ensure that the n-type transparent non-metallic protective cover 17 is securely fastened. It works together with the positioning clamp head 15 to fix the n-type transparent non-metallic protective cover 17, limiting the vertical and lateral displacement of the protective cover and ensuring that it does not fall off. The protruding length and thickness of the flange plate 12 meet the requirements of the n-type transparent non-metallic protective cover 17 and the external loads it transmits.
[0037] The cup wall 4 has a socket 5 inside, and the clamp handle 9 is located in the socket 5. The clamp handle 9 has a clamp handle bolt hole 10, and the cup wall 4 has a cup wall bolt hole 6. The movable adjusting bolt 7 passes through the cup wall bolt hole 6 and the clamp handle bolt hole 10, and the clamp handle 9 and the cup wall 4 are connected by the cup wall clamp adjusting nut 8. The cup wall bolt hole 6 and the clamp handle bolt hole 10 are elongated. The elongated openings of the cup wall bolt hole 6 and the clamp handle bolt hole 10 allow for convenient and accurate adjustment of the height of the integrated clamp 11, thereby adjusting the overall height of the protective base device to adapt to the terrain changes of the base layer and meet the requirements for smooth cable laying.
[0038] The clamp handle 9 matches the cross-sectional size and depth of the socket 5, ensuring that the integrated clamp 11 has sufficient embedding depth and strength. The clamp handle 9 and the socket 5 have a moderate fit, facilitating insertion and installation and preventing loosening, thus meeting the requirements for stability and reliability. The clamp handle bolt hole 10 is used to adjust the height of the integrated clamp 11, and is fixed by one or more movable adjusting bolts 7.
[0039] The n-type non-metallic protective cover 17 has a curved top 18, which is an arched shape with a high center and low sides, enabling efficient and reliable drainage. The curved top 18 has heat dissipation holes 19, and a heat dissipation hole protective plate 20, which is inverted U-shaped, is installed above the holes 19. During operation, the leaky cable 14 inevitably generates heat. The rectangular heat dissipation holes 19 on the curved top 18 provide timely heat dissipation. The size and shape of the holes can be adjusted according to requirements. The heat dissipation hole protective plate 20 is installed above the heat dissipation holes 19, and its size and shape match the holes to prevent rain and snow from entering and causing adverse effects on the leaky cable. The size, shape, and spacing of the heat dissipation holes and protective plates can be adjusted according to functional requirements and actual working conditions.
[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0041] The content of this utility model is not limited to the embodiments listed. Any equivalent modifications made by those skilled in the art to the technical solution of this utility model after reading this utility model specification shall be covered by the claims of this utility model.
Claims
1. An integrated adjustable trackside cable leakage protection device, characterized in that: Includes an integral cup-shaped base (1), which is fixed to the ground, and an integral clamp (11) is connected to the integral cup-shaped base (1). The integrated clamp (11) includes a clamp handle (9), and arc-shaped leaky cable clamping parts (13) are respectively provided on both sides of the top of the clamp handle (9). The leaky cable (14) is located between the two leaky cable clamping parts (13); a horizontal clamping end flange plate (12) is provided on the outside of the leaky cable clamping parts (13). The integrated clamp (11) is provided with an inverted U-shaped n-type wave-transparent non-metallic protective cover (17). The inner side of the two flange plates of the n-type wave-transparent non-metallic protective cover (17) is provided with a positioning head (15). A limiting head (16) is provided above the positioning head (15). The clamp end flange plate (12) is located in the groove between the positioning head (15) and the limiting head (16). The integral cup-shaped base (1) includes a rectangular base, on which a cup wall (4) is provided. The cup wall (4) is provided with a receiving port (5) inside, and the clamp handle (9) is provided in the receiving port (5); The clamp handle (9) is provided with a clamp handle bolt hole (10), and the cup wall (4) is provided with a cup wall bolt hole (6). The movable adjusting bolt (7) passes through the cup wall bolt hole (6) and the clamp handle bolt hole (10), and the clamp handle (9) and the cup wall (4) are connected by the cup wall clamp adjusting nut (8). The cup wall bolt hole (6) and the clamp handle bolt hole (10) are elongated.
2. The one-piece adjustable wayside cable leak shield as defined in claim 1, wherein: The rectangular base of the integral cup-shaped base (1) is provided with base fixing bolt holes (2). The base fixing bolt holes (2) are elongated and are provided with foot fixing bolts (3) to realize the connection between the integral cup-shaped base (1) and the ground.
3. The one-piece adjustable wayside cable leak shield as defined in claim 2, wherein: The positioning head (15) is an inverted right-angled trapezoid with the hypotenuse on the inside.
4. The integrated adjustable wayside cable spill guard of claim 3, wherein: The n-type transparent non-metallic protective cover (17) is provided with a protective cover curved top (18) on the top, and the protective cover curved top (18) is a round arch shape with a high middle and low sides.
5. The integrated adjustable wayside cable spill guard of claim 4, wherein: The protective cover has heat dissipation holes (19) on its curved top (18).
6. The one-piece adjustable wayside cable guard of claim 5, wherein: A heat dissipation hole protection plate (20) is provided on the heat dissipation hole (19), and the heat dissipation hole protection plate (20) is inverted U-shaped.
7. The one-piece adjustable wayside cable guard of claim 6, wherein: The cup wall (4) is trapezoidal.