An insulation layer room temperature self-fusing cable intermediate joint

Abstract

The utility model provides a kind of insulation layer normal temperature self-fusion type cable intermediate joint, including cable joint end, the outside of cable joint end is provided with inner sheath, the outside of cable joint end is fixedly installed with outer layer, the outside of outer layer is provided with fixed assembly, the outside of cable joint end is fixedly installed with protective layer, the inside of protective layer is fixedly installed with helical connecting strip.The insulation layer normal temperature self-fusion type cable intermediate joint, by setting multilayer structure design, forms multilayer insulation barrier, can stably keep excellent insulation performance, reduces the probability of electrical fault occurrence, sets fixed assembly, significantly improves the connection stability of cable intermediate joint, can be closely surrounded in outer layer outside, provides firm external support for entire joint, further enhances the integrity and reliability of fixed assembly, effectively prevents joint from appearing loosening, displacement phenomenon due to external force in use process, guarantees the continuity and stability of power transmission.

Description

Technical Field

[0001] This utility model relates to the technical field of cable connection, and in particular to a cable intermediate joint with a room temperature self-melting insulation layer. Background Technology

[0002] In power transmission systems, cable joints are key components for cable connections, and their performance directly affects the safety and stability of power transmission. As the core carrier of electrical energy transmission, the connection of cables is crucial to ensuring stable power transmission. Cable joints, as the core component for continuous cable connection, not only bear the heavy responsibility of ensuring stable power transmission and preventing power leakage, but also need to effectively isolate external environmental interference and prevent moisture, impurities, and other contaminants from affecting power transmission performance. Currently, common insulation treatment methods for cable joints mainly focus on wrapping insulating tape and installing insulating sleeves. Therefore, there is a particular need for a self-fusing cable joint with a room-temperature insulation layer.

[0003] However, existing cable joints, which use a single or few layers of insulation material, are unable to provide stable and efficient insulation protection in complex and ever-changing electrical environments. Single insulation layers are prone to aging and damage, and cannot resist external electric field interference, resulting in a decline in insulation performance. This can lead to electrical faults such as leakage and short circuits, seriously affecting the safety and stability of power transmission. Without a fixed device or with a simple fixed structure, they are prone to loosening and displacement when faced with long-term vibration, external pulling force, or thermal expansion and contraction caused by temperature changes. This makes the cable connection unstable, which may not only cause power transmission interruption but also pose a risk of safety accidents. They are unable to meet the diverse cable connection needs and the requirements for rapid construction. Utility Model Content

[0004] The purpose of this utility model is to provide a room-temperature self-fusion type cable joint with an insulating layer, to solve the problems mentioned in the background art. Existing cable joints use a single or a few layers of insulating material, which makes it difficult to provide stable and efficient insulation protection in complex and ever-changing electrical environments. A single insulating layer is prone to aging and damage, and cannot resist external electric field interference, resulting in a decline in insulation performance and leading to electrical faults such as leakage and short circuits. This seriously affects the safety and stability of power transmission. Without a fixed device or with a simple fixed structure, it is very easy to loosen and shift when faced with long-term vibration, external force pulling, or thermal expansion and contraction caused by temperature changes. This makes the cable connection unstable, which may not only cause power transmission interruption, but also poses a risk of safety accidents. It is difficult to meet the diverse cable connection needs and the requirements of rapid construction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a room-temperature self-melting cable joint with an insulating layer, comprising a cable joint end, an inner sheath disposed on the outer side of the cable joint end, an outer layer fixedly installed on the outer side of the cable joint end, a connecting pad disposed on the outer side of the outer layer, a middle layer disposed on the outer side of the connecting pad, an inner layer disposed on the outer side of the middle layer, a conductor disposed on the outer side of the inner layer, an insulating tape disposed on the outer side of the conductor, a fixing component disposed on the outer side of the outer layer, a protective layer fixedly installed on the outer side of the cable joint end, and a spiral connecting strip fixedly installed on the inner side of the protective layer.

[0006] Preferably, the fixing component includes a first fixing ring, which is installed on the outer side of the outer layer. The outer side of the first fixing ring has a snap-fit ​​groove. A first connector is fixedly installed on the outer side of the first fixing ring. A second fixing ring is provided on the outer side of the first fixing ring. A snap-fit ​​block is fixedly installed on the outer side of the second fixing ring. A second connector is fixedly installed on the outer side of the second fixing ring. A mounting post is provided on the outer side of the mounting post. A connecting groove is provided on the outer side of the mounting post. The fixing component has two identical sets.

[0007] Preferably, the first fixing ring and the second fixing ring are the same size, and the vertical cross-section of the first fixing ring and the second fixing ring is a "semi-circular ring" structure.

[0008] Preferably, the snap-fit ​​groove and the snap-fit ​​block are provided in two identical sets. The two sets of snap-fit ​​grooves are symmetrically distributed about the horizontal center line of the first fixing ring, and the two sets of snap-fit ​​blocks are symmetrically distributed about the horizontal center line of the second fixing ring. The two sets of snap-fit ​​grooves and snap-fit ​​blocks are compatible with each other.

[0009] Preferably, the dimensions of connector one and connector two are the same, and the vertical cross-sections of connector one and connector two are both semi-circular.

[0010] Preferably, the vertical cross-section of the assembly of connector one and connector two is circular, and the assembly of connector one and connector two is adapted to the connecting groove.

[0011] Preferably, the outer layer, connecting pad, middle layer, inner layer, conductor, and insulating tape are provided in three identical sets, and the three sets of the outer layer, connecting pad, middle layer, inner layer, conductor, and insulating tape are arranged in a ring on the outside of the cable joint end. The spiral connecting strip is provided in multiple identical sets, and the multiple sets of spiral connecting strips are arranged in a ring on the outside of the protective layer.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This room-temperature self-fusion type cable joint features a multi-layer structure design, forming multiple insulation barriers. The inner layer, close to the conductor, effectively isolates the conductor from external contact, preventing leakage. The middle and outer layers further enhance insulation performance, resisting external electric field interference. The addition of insulating tape further increases insulation redundancy. These multiple insulation safeguards ensure that the cable joint maintains excellent insulation performance stably under various complex electrical environments, greatly reducing the probability of electrical faults. The inclusion of a fixing component significantly improves the connection stability of the cable joint, allowing it to tightly wrap around the outer layer. The side provides a stable external support for the entire joint, further enhancing the integrity and reliability of the fixing components. It effectively prevents the joint from loosening or shifting due to external forces during use, ensuring a firm cable connection and guaranteeing the continuity and stability of power transmission. The multi-layer structure design makes the installation and positioning of each component clear, reducing installation difficulty and improving installation efficiency. It is especially suitable for large-scale cable connection projects. By adjusting the number and specifications of the ring-distributed components, it can be flexibly applied to various cable connection scenarios, with strong structural adaptability and expandability, meeting diverse engineering application needs and improving the product's versatility and market competitiveness. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional sectional view of the present invention.

[0015] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the disassembled structure of the fixing component of this utility model.

[0017] In the diagram: 1. Cable connector end; 2. Inner sheath; 3. Outer layer; 4. Connecting pad; 5. Middle layer; 6. Inner layer; 7. Conductor; 8. Insulating tape; 9. Fixing assembly; 901. Fixing ring one; 902. Snap-fit ​​groove; 903. Connector one; 904. Fixing ring two; 905. Snap-fit ​​block; 906. Connector two; 907. Mounting post; 908. Connecting groove; 10. Protective layer; 11. Spiral connecting strip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a self-fusing cable intermediate joint with room temperature insulation layer, including a cable joint end 1, an inner sheath 2 provided on the outer side of the cable joint end 1, an outer layer 3 fixedly installed on the outer side of the cable joint end 1, a connecting pad 4 provided on the outer side of the outer layer 3, a middle layer 5 provided on the outer side of the connecting pad 4, an inner layer 6 provided on the outer side of the middle layer 5, a conductor 7 provided on the outer side of the inner layer 6, an insulating tape 8 provided on the outer side of the conductor 7, a fixing component 9 provided on the outer side of the outer layer 3, a protective layer 10 fixedly installed on the outer side of the cable joint end 1, and a spiral connecting strip 11 fixedly installed on the inner side of the protective layer 10.

[0020] Furthermore, the fixing component 9 includes a fixing ring 901, which is installed on the outer side of the outer layer 3. The outer side of the fixing ring 901 has a snap-fit ​​groove 902. A connector 903 is fixedly installed on the outer side of the fixing ring 901. A fixing ring 904 is provided on the outer side of the fixing ring 901. A snap-fit ​​block 905 is fixedly installed on the outer side of the fixing ring 904. A connector 906 is fixedly installed on the outer side of the fixing ring 904. A mounting post 907 is provided on the outer side of the mounting post 907. A connecting groove 908 is provided on the outer side of the mounting post 907. The fixing component 9 has two identical sets. By setting the fixing component 9, the connection stability of the cable intermediate joint is significantly improved. It can tightly wrap around the outer side of the outer layer 3, providing a stable external support for the entire joint. This further enhances the integrity and reliability of the fixing component 9, effectively preventing the joint from loosening or shifting due to external forces during use, ensuring a firm cable connection, and guaranteeing the continuity and stability of power transmission.

[0021] Furthermore, the first fixing ring 901 and the second fixing ring 904 are the same size. The vertical cross-section of the first fixing ring 901 and the second fixing ring 904 is a "semi-circular ring" structure. By setting the first fixing ring 901 and the second fixing ring 904, it is ensured that the fixing component 9 can be tightly fixed to the outside of the outer layer 3, providing a stable external support for the entire joint.

[0022] Furthermore, both the snap-fit ​​groove 902 and the snap-fit ​​block 905 are provided with two identical sets. The two sets of snap-fit ​​grooves 902 are symmetrically distributed about the horizontal center line of the first fixing ring 901, and the two sets of snap-fit ​​blocks 905 are symmetrically distributed about the horizontal center line of the second fixing ring 904. The two sets of snap-fit ​​grooves 902 and snap-fit ​​blocks 905 are compatible. By providing two sets of snap-fit ​​grooves 902 and snap-fit ​​blocks 905, the snap-fit ​​block 905 can be accurately embedded in the snap-fit ​​groove 902 to form a stable snap-fit ​​structure, which restricts the relative movement of the first fixing ring 901 and the second fixing ring 904 in the circumferential direction. This ensures that the fixing component 9 can be tightly fixed to the outside of the outer layer 3, providing a stable external support for the entire connector.

[0023] Furthermore, the dimensions of connector 1 903 and connector 2 906 are identical, and their vertical cross-sections are both semi-circular. By designing a structure where, after fixing ring 1 901 and fixing ring 2 904 are assembled, connector 1 903 and connector 2 906 can be spliced ​​together to form a complete circular structure. This circular structure is compatible with the connecting groove 908 on the outside of the mounting post 907, further enhancing the integrity and reliability of the fixing component 9. This effectively prevents the fixing component 9 from loosening or falling off when the cable is subjected to external force or vibration, ensuring a firm and stable cable connection and guaranteeing the continuity and safety of power transmission.

[0024] Furthermore, the vertical cross-section of the assembly of connector 1 903 and connector 2 906 is circular. The assembly of connector 1 903 and connector 2 906 is adapted to the connecting groove 908. By setting connector 1 903 and connector 2 906 and embedding the assembly of connector 1 903 and connector 2 906 into the connecting groove 908, the fixing component 9 is positioned and fixed in the axial direction, which further enhances the integrity and reliability of the fixing component 9, ensures that the cable connection is firm and stable, and guarantees the continuity and safety of power transmission.

[0025] Furthermore, the outer layer 3, connecting pad 4, middle layer 5, inner layer 6, conductor 7, and insulating tape 8 are provided in three identical sets, and the three sets of outer layer 3, connecting pad 4, middle layer 5, inner layer 6, conductor 7, and insulating tape 8 are arranged in a ring on the outside of the cable joint end 1. The spiral connecting strip 11 is provided in multiple identical sets, and the multiple sets of spiral connecting strip 11 are arranged in a ring on the outside of the protective layer 10. By providing three sets of outer layer 3, connecting pad 4, middle layer 5, inner layer 6, conductor 7, and insulating tape 8, it is possible to flexibly adjust according to the number and specifications of the cable cores. For multi-core cables, multiple cores can be insulated and connected simultaneously through the ring-shaped distribution structure. The ring-shaped distribution structure makes the force on each component uniform, and when subjected to external force, they can jointly bear the external force, enhancing the overall resistance of the joint to external force and effectively protecting the internal cable cores and electrical connection structure.

[0026] Working principle: The operator processes the ends of the two cable sections to be connected, stripping an appropriate length of the outer sheath to expose cable connector end 1. Ensure the surface of cable connector end 1 is clean, free of impurities and oxide layers. Inspect all components of the room-temperature self-fusing cable joint. Place the inner sheath 2 over the outside of cable connector end 1, ensuring a tight fit. Use a special tool or manually to secure the inner sheath 2 in place, providing initial insulation and physical protection for cable connector end 1. On the outside of cable connector end 1 with the inner sheath 2 installed, fix the outer layer 3. The installation of the outer layer 3 must ensure its coaxiality with cable connector end 1. Install the retaining ring 901 on the outside of the outer layer 3, with the locking groove 902 of the retaining ring 901 facing upwards. Ensure that the retaining ring 901 fits tightly against the outer layer 3. Temporary fixation can be achieved using clamps or other auxiliary tools to prevent movement during subsequent operations. Align the locking block 905 of the retaining ring 904 with the locking groove 902 of the retaining ring 901, and slowly wrap the retaining ring 904 around the outer layer 3, ensuring the locking block 905 is accurately embedded in the locking groove 902, forming a stable circumferential fixing structure. Assemble the connector 903 and connector 906 with the retaining rings 901 and 904 respectively, forming a complete circular structure. Align this circular structure with the connecting groove 908 on the outer side of the mounting post 907 and slowly insert it, achieving axial positioning and fixation of the fixing component 9. Use a screwdriver or other fastening tools to tighten the connecting parts. Reinforce the outer layer 3 to ensure the fixing component 9 is securely installed on the outside of the outer layer 3, providing stable external support for the entire joint. On the outside of the fixed outer layer 3, install the connecting pad 4 and the middle layer 5 in sequence. The connecting pad 4 uses elastic cushioning material; during installation, ensure it evenly covers the surface of the outer layer 3 to guarantee a cushioning and shock absorption effect. When installing the middle layer 5, pay attention to the direction of its internal reinforcing ribs, ensuring that its axial and circumferential reinforcing ribs match the direction of cable stress, enhancing the structural strength and resistance to external forces of the middle layer 5. Wrap the inner layer 6 around the conductor 7, ensuring a tight fit between the inner layer 6 and the conductor 7 to form a good insulating protective layer. Place the conductor 7, wrapped with the inner layer 6, inside the middle layer 5, and adjust its position to align the conductor 7 with the wire core of the cable joint end 1, ready for electrical connection. Next, electrically connect conductor 7 to the wire core of cable connector end 1. After connection, wrap insulating tape 8 around the outside of conductor 7. Then, cover the outside of the multi-layered cable connector with the protective layer 10, ensuring that the protective layer 10 completely covers the internal structure of the connector, providing waterproof, dustproof, and corrosion-resistant protection. Use special adhesive or fastening components to fix the protective layer 10 to the cable outer sheath, ensuring a tight connection. Then, wrap multiple sets of spiral connecting strips 11 sequentially around the inside of the protective layer 10, using a spiral winding method to ensure a tight fit against the surface of the cable outer sheath. Each turn of the spiral connecting strip 11 must overlap to ensure a complete spiral seal structure, effectively preventing external impurities from entering the connector. Finally, inspect the overall appearance of the cable intermediate connector.Check that all components are installed evenly and without misalignment, that the fixing component 9 is secure, and that the protective layer 10 and spiral connecting strip 11 are properly sealed, without gaps or damage. Use professional electrical testing equipment to perform insulation resistance and withstand voltage tests on the cable joint to ensure that its insulation and electrical connection performance meet relevant standards and requirements. If the test results are substandard, check the installation and connection of each component and make corresponding adjustments and repairs until the test is passed.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A self-fusing cable joint with room temperature insulation, comprising a cable joint end (1), characterized in that: An inner sheath (2) is provided on the outer side of the cable connector end (1). An outer layer (3) is fixedly installed on the outer side of the cable connector end (1). A connecting pad (4) is provided on the outer side of the outer layer (3). A middle layer (5) is provided on the outer side of the connecting pad (4). An inner layer (6) is provided on the outer side of the middle layer (5). A conductor (7) is provided on the outer side of the inner layer (6). An insulating tape (8) is provided on the outer side of the conductor (7). A fixing component (9) is provided on the outer side of the outer layer (3). A protective layer (10) is fixedly installed on the outer side of the cable connector end (1). A spiral connecting strip (11) is fixedly installed on the inner side of the protective layer (10).

2. The room-temperature self-fusing cable joint with insulating layer according to claim 1, characterized in that: The fixing component (9) includes a fixing ring one (901), which is installed on the outer side of the outer layer (3). A snap-fit ​​groove (902) is provided on the outer side of the fixing ring one (901). A connector one (903) is fixedly installed on the outer side of the fixing ring one (901). A fixing ring two (904) is provided on the outer side of the fixing ring one (901). A snap-fit ​​block (905) is fixedly installed on the outer side of the fixing ring two (904). A connector two (906) is fixedly installed on the outer side of the fixing ring two (904). A mounting post (907) is provided on the outer side of the fixing ring two (904). A connecting groove (908) is provided on the outer side of the mounting post (907). The fixing component (9) has two identical sets.

3. A self-fusing cable joint with room temperature insulation layer according to claim 2, characterized in that: The first fixing ring (901) and the second fixing ring (904) are the same size, and the vertical cross-section of the first fixing ring (901) and the second fixing ring (904) is a "semi-circular ring" structure.

4. A self-fusing cable joint with room temperature insulation layer according to claim 2, characterized in that: Both the snap-fit ​​groove (902) and the snap-fit ​​block (905) are provided with two identical sets. The two sets of snap-fit ​​grooves (902) are symmetrically distributed about the horizontal center line of the first fixing ring (901), and the two sets of snap-fit ​​blocks (905) are symmetrically distributed about the horizontal center line of the second fixing ring (904). Both sets of snap-fit ​​grooves (902) and snap-fit ​​blocks (905) are compatible.

5. A self-fusing cable joint with room temperature insulation layer according to claim 2, characterized in that: The size of connector one (903) and connector two (906) are the same, and the vertical cross-section of connector one (903) and connector two (906) are both "semi-circular" shaped.

6. A self-fusing cable joint with insulating layer at room temperature according to claim 2, characterized in that: The vertical cross-section of the assembly of connector one (903) and connector two (906) is circular, and the assembly of connector one (903) and connector two (906) is adapted to the connecting groove (908).

7. A self-fusing cable joint with insulating layer at room temperature according to claim 1, characterized in that: The outer layer (3), connecting pad (4), middle layer (5), inner layer (6), conductor (7) and insulating tape (8) are provided in three identical sets, and the three sets of the outer layer (3), connecting pad (4), middle layer (5), inner layer (6), conductor (7) and insulating tape (8) are arranged in a ring outside the cable joint end (1). The spiral connecting strip (11) is provided in multiple identical sets, and the multiple sets of spiral connecting strip (11) are arranged in a ring outside the protective layer (10).

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