Butt joint device with protective structure for railway signal cable connection
By introducing protective clamps, seals, and buffers into railway signal cable connectors, the problem of unstable connection caused by gravity or external force pulling on signal cables has been solved, achieving a stable connection and reliable signal transmission, while enhancing mechanical strength and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-24
AI Technical Summary
The lack of protective structure in existing railway signal cable connectors means that the signal cables may be stretched due to gravity or external forces during long-term use, affecting connection stability and signal transmission reliability.
A railway signal cable connector with a protective structure was designed, including a connector body, connecting terminals, a signal cable body, a protective clamp, an adsorption groove, and an adsorption block. The protective clamp supports the end of the signal cable, limiting the bending radius, and uses seals and buffers to prevent cable damage. At the same time, a shielding layer and a waterproof layer are provided to enhance the connection stability and protection.
It effectively prevents signal cables from being damaged by excessive bending or external force, maintains a stable connection, ensures the accuracy and reliability of signal transmission, prevents rainwater and impurities from entering, and enhances mechanical strength and environmental protection.
Smart Images

Figure CN224036733U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable connector technology, specifically a connector for railway signal cable connection with a protective structure. Background Technology
[0002] In railway signaling systems, the use of cable connectors (or mating devices) is crucial for connecting two railway signaling cables, ensuring the reliability of the electrical connection, mechanical strength, and environmental protection.
[0003] Railway signal cables need to transmit signals in real time and accurately. Any loose or disconnected connection may lead to signal interruption or failure. However, ordinary connectors lack protective structures for the cables. During long-term use, the signal cables may be pulled downwards due to gravity or external forces, affecting the stable connection of the connector. Therefore, a connector for railway signal cable connections with a protective structure is needed. Utility Model Content
[0004] The purpose of this invention is to provide a connector for railway signal cable connections with a protective structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a connector for railway signal cables with a protective structure, comprising a connector body, a connecting terminal, a first signal cable body, and a second signal cable body. A connecting terminal is located at the center of the connector body, and the first and second signal cable bodies are respectively located on both sides of the connector body. The ends of the first and second signal cable bodies near the connecting terminal are connected to the connecting terminal. Protective brackets are provided at the bottom ends of both sides of the connector body, and the ends of the first and second signal cable bodies pass through the interior of the protective brackets. The bottom ends of both sides of the protective brackets are connected via rotating seats, and the top ends of both sides of the protective brackets are respectively provided with adsorption grooves and adsorption blocks. Clamping plates are provided on both sides inside the protective brackets.
[0006] Preferably, both ends of the docking device body are provided with sealing cavities, and each sealing cavity is provided with a sealing element through a support block, and a skeleton is embedded inside the sealing element.
[0007] Preferably, the sealing element has a sealing lip at one end near the first signal cable body and the second signal cable body via a return spring, and the sealing lip is in close contact with the outer wall of the first signal cable body and the second signal cable body.
[0008] Preferably, the protective bracket has grooves evenly distributed on both sides inside, and the interior of each groove is connected to the clamping plate through a buffer member, wherein the buffer member is a hollow rubber structure.
[0009] Preferably, all the clamps are arc-shaped, and one side of each clamp is provided with an anti-slip pad.
[0010] Preferably, the inner sidewall of the docking device body is provided with a sandwich layer, and the inner sidewall is provided with reinforcing ribs evenly distributed.
[0011] Preferably, the inner wall of the docking device body is provided with a shielding layer, and the shielding layer is made of woven metal wire.
[0012] Preferably, the outer wall of the docking device body is provided with a waterproof layer, and the waterproof layer is a polyurethane coating.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The railway signal cable connector with a protective structure is equipped with a connector body, a first signal cable body, a second signal cable body, a connecting terminal, a protective bracket, a groove, a buffer, a clamp, an adsorption block, and an adsorption groove. The protective bracket is set on the connector body below the first and second signal cable bodies to support their ends, which can limit the bending radius of the ends of the first and second signal cable bodies and avoid the breakage or damage of internal wires due to excessive bending. This makes the connection between the connector body and the first and second signal cable bodies more stable and can effectively prevent sagging and twisting, thereby maintaining accurate signal transmission. The clamp contacts the outer wall of the first and second signal cable bodies, and the buffer prevents the clamp from rigidly squeezing the first and second signal cable bodies. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a frontal cross-sectional view of the present invention.
[0016] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0017] Figure 3This is a side view sectional structural diagram of the protective bracket of this utility model;
[0018] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point B;
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the main body side wall of the docking device of this utility model.
[0020] In the diagram: 1. Connector body; 2. Connecting terminal; 3. First signal cable body; 4. Second signal cable body; 5. Protective bracket; 6. Sealing cavity; 7. Support block; 8. Sealing element; 9. Frame; 10. Return spring; 11. Sealing lip; 12. Clamping plate; 13. Adsorption groove; 14. Adsorption block; 15. Groove; 16. Buffer; 17. Anti-slip pad; 18. Interlayer; 19. Reinforcing rib; 20. Shielding layer; 21. Waterproof layer. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0022] Please see Figure 1-5 The present invention provides an embodiment of a railway signal cable connector with a protective structure, comprising a connector body 1, a connecting terminal 2, a first signal cable body 3, and a second signal cable body 4. The connecting terminal 2 is provided at the center of the connector body 1, and the first signal cable body 3 and the second signal cable body 4 are respectively provided on both sides of the connector body 1. The ends of the first signal cable body 3 and the second signal cable body 4 near the connecting terminal 2 are both connected to the connecting terminal 2.
[0023] One end of the first signal cable body 3 and the second signal cable body 4 are respectively connected to the connecting terminal 2 inside the connector body 1;
[0024] Both ends of the connector body 1 are provided with sealing cavities 6, and the interior of each sealing cavity 6 is provided with a sealing element 8 through a support block 7. The end of the sealing element 8 near the first signal cable body 3 and the second signal cable body 4 is provided with a sealing lip 11 through a reset spring 10, and the sealing lip 11 is tightly fitted to the outer wall of the first signal cable body 3 and the second signal cable body 4.
[0025] Due to the elasticity of the elastic material and the action of the return spring 10, the sealing lip 11 will be axially compressed, thereby tightly fitting the first signal cable body 3 and the second signal cable body 4, preventing impurities such as rainwater and dust from penetrating into the interior of the docking body 1 in the railway environment.
[0026] The seal 8 has a skeleton 9 embedded inside, which serves to support and fix it, so that the seal 8 can maintain its shape and tension.
[0027] The bottom ends of both sides of the connector body 1 are provided with protective brackets 5, and the ends of the first signal cable body 3 and the second signal cable body 4 pass through the interior of the protective brackets 5. The bottom ends of both sides of the protective brackets 5 are connected by rotating seats, and the top ends of both sides of the protective brackets 5 are respectively provided with adsorption grooves 13 and adsorption blocks 14.
[0028] By connecting the adsorption block 14 on the top of the protective bracket 5 to the adsorption groove 13, the protective bracket 5 is fixed to the ends of the first signal cable body 3 and the second signal cable body 4, and the ends are lifted. The adsorption block 14 is made of magnet, and the inner wall of the adsorption groove 13 is provided with a magnetic coating to facilitate adsorption connection.
[0029] It can limit the bending radius of the ends of the first signal cable body 3 and the second signal cable body 4, and avoid the internal wires from breaking or being damaged due to excessive bending, so that the connection between the connector body 1 and the first signal cable body 3 and the second signal cable body 4 is more stable, thereby maintaining accurate signal transmission.
[0030] The protective bracket 5 has clamps 12 on both sides inside, and the clamps 12 are all arc-shaped, and anti-slip pads 17 are provided on one side of each clamp.
[0031] The protective bracket 5 has grooves 15 evenly distributed on both sides inside, and the interior of each groove 15 is connected to the clamping plate 12 through a buffer member 16. The buffer member 16 is a hollow rubber structure.
[0032] Its elastic characteristics make it less likely that the first signal cable body 3 and the second signal cable body 4 will be subjected to rigid compression from the clamping plate 12, thus preventing damage to the first signal cable body 3 and the second signal cable body 4.
[0033] The inner sidewall of the docking body 1 is provided with a sandwich layer 18, and the interior of the sandwich layer 18 is evenly distributed with reinforcing ribs 19, which improves the structural strength of the docking body 1 shell, can resist external impact, vibration and pressure, and protect the internal cable connection.
[0034] The inner wall of the docking device body 1 is provided with a shielding layer 20, and the shielding layer 20 is made of woven metal wire to prevent external electromagnetic interference from affecting signal transmission.
[0035] The outer wall of the docking device body 1 is provided with a waterproof layer 21, and the waterproof layer 21 is made of polyurethane coating to prevent erosion by rainwater.
[0036] Working Principle: In this embodiment, after one end of the first signal cable body 3 and the second signal cable body 4 are connected to the connecting terminal 2 inside the connector body 1, the protective bracket 5 is fixed to the ends of the first signal cable body 3 and the second signal cable body 4 by connecting the adsorption block 14 on the top of the protective bracket 5 to the adsorption groove 13. This supports the ends, limiting the bending radius of the ends of the first signal cable body 3 and the second signal cable body 4, preventing breakage or damage to the internal wires due to excessive bending. This makes the connection between the connector body 1 and the first signal cable body 3 and the second signal cable body 4 more stable, thus maintaining accurate signal transmission. The clamp 12 inside the protective bracket 5 connects to the first signal cable body 3 and the second signal cable body 4. The outer wall of the cable body 4 contacts the protective bracket 5, and grooves 15 are evenly opened on both sides inside the protective bracket 5. The grooves 15 are connected to the clamp plate 12 through buffer members 16. The buffer member 16 is a hollow rubber structure. Its elasticity makes it difficult for the clamp plate 12 to be rigidly squeezed by the clamp plate 12 on the first signal cable body 3 and the second signal cable body 4. At the same time, both ends of the connector body 1 are provided with sealing cavities 6. The sealing cavities 6 are provided with sealing members 8. The sealing members 8 are provided with sealing lips 11. Due to the elasticity of the elastic material and the action of the return spring 10, the sealing lips 11 will be axially compressed, thus tightly fitting the first signal cable body 3 and the second signal cable body 4, preventing rainwater, dust and other impurities from penetrating into the interior of the connector body 1 in the railway environment.
[0037] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
Claims
1. A connector for railway signal cable connections with a protective structure, characterized in that, The device includes a connector body (1), a connecting terminal (2), a first signal cable body (3), and a second signal cable body (4). The connecting terminal (2) is located at the center of the connector body (1), and the first signal cable body (3) and the second signal cable body (4) are located on both sides of the connector body (1). The ends of the first signal cable body (3) and the second signal cable body (4) near the connecting terminal (2) are connected to the connecting terminal (2). The bottom ends of both sides of the connector body (1) are provided with protective brackets (5), and the ends of the first signal cable body (3) and the second signal cable body (4) pass through the interior of the protective brackets (5). The bottom ends of both sides of the protective brackets (5) are connected by rotating seats, and the top ends of both sides of the protective brackets (5) are provided with adsorption grooves (13) and adsorption blocks (14). The two sides of the interior of the protective brackets (5) are provided with clamps (12).
2. The connector for railway signal cable connections with a protective structure according to claim 1, characterized in that: Both ends of the docking body (1) are provided with sealing cavities (6), and the interior of each sealing cavity (6) is provided with a sealing element (8) through a support block (7), and a skeleton (9) is embedded inside the sealing element (8).
3. A connector for railway signal cable connections with a protective structure according to claim 2, characterized in that: The sealing element (8) has a sealing lip (11) at one end near the first signal cable body (3) and the second signal cable body (4) through a return spring (10), and the sealing lip (11) is in close contact with the outer wall of the first signal cable body (3) and the second signal cable body (4).
4. A connector for railway signal cable connections with a protective structure according to claim 1, characterized in that: The protective bracket (5) has grooves (15) evenly distributed on both sides inside, and the interior of each groove (15) is connected to the clamp (12) through a buffer (16). The buffer (16) is a hollow rubber structure.
5. A connector for railway signal cable connections with a protective structure according to claim 1, characterized in that: The clamps (12) are all arc-shaped, and each clamp (12) has an anti-slip pad (17) on one side.
6. A connector for railway signal cable connections with a protective structure according to claim 1, characterized in that: The docking device body (1) has an internal interlayer (18) on its side wall, and the interlayer (18) is uniformly distributed with reinforcing ribs (19).
7. A connector for railway signal cable connections with a protective structure according to claim 1, characterized in that: The inner wall of the docking device body (1) is provided with a shielding layer (20), and the shielding layer (20) is made of woven metal wire.
8. A connector for railway signal cable connections with a protective structure according to claim 1, characterized in that: The outer wall of the docking device body (1) is provided with a waterproof layer (21), and the waterproof layer (21) is made of polyurethane coating.