A maintenance-free high-voltage cable hot-melt T-joint

Abstract

The utility model relates to cable technical field, specifically is a kind of maintenance-free high-voltage cable hot melt T joint, including joint body, the side wall of joint body is fixed with the feeding hopper being communicated with the inside of joint body, sealing cover is threadedly connected on the feeding hopper, first sealing pad is fixed in the sealing cover, the both ends of joint body are threadedly connected with the sleeve, the both sides of sealing cover are equipped with clamping mechanism and cable, the conductor of two cables is extended to joint body inside;Sealing cover is placed on feeding hopper and is tightened, can prevent water from entering feeding hopper, two sleeves are pushed to joint body and are tightened two sleeves, two O-shaped sealing rings are extruded deformation, two O-shaped sealing rings can be closely attached to two cables, improve the waterproof performance of joint body.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a maintenance-free high-voltage cable heat fusion T-joint. Background Technology

[0002] Cables are typically rope-like structures made of several or groups of conductors (at least two conductors per group) twisted together. Each group of conductors is insulated from the others and is often twisted around a central core, with the entire structure covered by a highly insulating outer layer. Cables are characterized by internal conductivity and external insulation. In the power industry, connectors are required when splicing cables. A patent with authorization publication number CN213521245U and titled "A Maintenance-Free High-Voltage Cable Hot-Melt T-Type Joint" includes a fusion joint. A first cable and a second cable are respectively arranged on both sides of the fusion joint. Symmetrically distributed cylinders are fixedly connected to both ends inside the fusion joint. The bottom of each cylinder has an opening. The cable conductors on one side of the first and second cables are inserted into the cylinders. A first fixing ring and a second fixing ring are respectively provided on the outer surface of the first and second cables. In this maintenance-free high-voltage cable hot-melt T-type joint, the first and second fixing rings are fixed to the outer surface of the cable with screws and then fixed to the fusion joint with bolts, ensuring that the cable conductors on the first and second cables are neatly spliced, thus preventing subsequent breakage. However, in actual use, water can easily enter the fusion joint through the fusion chamber and fusion interface of this maintenance-free high-voltage cable heat fusion T-joint, resulting in poor waterproof performance of the fusion joint and affecting the normal use of the cable. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides a maintenance-free high-voltage cable thermofusion T-type joint.

[0004] The technical solution adopted by this utility model to solve its technical problem is a maintenance-free high-voltage cable heat fusion T-type joint, including a joint body. A feed hopper communicating with the interior of the joint body is fixed to the side wall of the joint body. A sealing cover is threadedly connected to the feed hopper. A first sealing gasket is fixed inside the sealing cover. Both ends of the joint body are threadedly connected to ferrules. O-rings are provided in both ferrules. A second sealing gasket is fixed to both ends of the joint body. Clamping mechanisms and cables are provided on both sides of the sealing cover. The conductors of both cables extend into the joint body.

[0005] By adopting the above technical solution, rotating the two ferrules disengages them from the connector body, allowing the conductors of the two cables to be inserted into the connector body. Unscrewing the sealing cap allows molten welding material to be introduced into the connector body through the feed hopper, achieving a fusion connection between the two conductors. After heat fusion, placing the sealing cap on the feed hopper and tightening it prevents water from entering the feed hopper. Pushing the two ferrules towards the connector body and tightening them further compresses the two O-rings, causing them to deform and adhere tightly to the two cables, thus improving the waterproof performance of the connector body.

[0006] Specifically, the clamping mechanism includes a collar, a retainer, a clamping block, and a locking bolt. The collar is fixed to the connector body. Multiple connecting rods are fixed to the side of the collar away from the sealing cover. The retainer is located on the side of the collar away from the sealing cover. The ends of the multiple connecting rods away from the collar are all connected to the retainer. Anti-slip pads are fixed inside the retainer and the clamping block. Two screw holes adapted to the locking bolt are provided on both the retainer and the clamping block.

[0007] By adopting the above technical solution, after passing two cables through two clamps and inserting two conductors into the connector body, two clamps are placed on the two clamps, the locking bolts are tightened, and the anti-slip pads are in close contact with the cables to facilitate cable clamping and prevent the conductors from separating after heat fusion.

[0008] Specifically, a support is fixed to the bottom of the connector body, and mounting holes are provided at the four corners of the bottom of the support.

[0009] By adopting the above technical solution, after the cable is laid, the bottom end of the bolt is passed through the mounting holes at the four corners of the bottom end of the support, which makes it easy to fix the support to the ground or other locations, thus improving the stability of the joint body.

[0010] Specifically, the outer wall of the sealing cap is integrally formed with multiple anti-slip protrusions.

[0011] By adopting the above technical solution, the anti-slip protrusions facilitate gripping and rotating the sealing cap.

[0012] Specifically, both of the card sleeves have multiple anti-slip textures on their outer walls.

[0013] By adopting the above technical solution, the anti-slip texture makes it easier to grip and rotate the card sleeve.

[0014] The beneficial effects of this utility model are:

[0015] (1) The maintenance-free high-voltage cable heat fusion T-type joint of this utility model is achieved by rotating two clamps, which disengage from the joint body, inserting the conductors of the two cables into the joint body, unscrewing the sealing cap, and introducing the molten welding material into the joint body through the feed hopper to achieve the fusion connection of the two conductors. After heat fusion, the sealing cap is placed on the feed hopper and tightened to prevent water from entering the feed hopper. The two clamps are pushed towards the joint body and tightened, and the two O-rings are squeezed and deformed, so that the two O-rings can fit tightly against the two cables, thereby improving the waterproof performance of the joint body.

[0016] (2) The maintenance-free high-voltage cable heat fusion T-type joint of this utility model is provided by passing two cables through two clamps and inserting two conductors into the joint body, placing two clamps on the two clamps, tightening the locking bolts, and making the anti-slip pad close to the cable to facilitate the clamping of the cable and prevent the conductors from separating after heat fusion. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the connector body of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the card holder structure of this utility model.

[0022] In the diagram: 1. Connector body; 2. Compression sleeve; 20. O-ring seal; 21. Second sealing gasket; 3. Clamping mechanism; 4. Cable; 40. Conductor; 5. Support; 6. Sealing cap; 7. Collar; 8. Connecting rod; 9. Card holder; 10. First sealing gasket; 11. Feed hopper; 12. Clamping block; 13. Locking bolt; 14. Anti-slip pad. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] To improve waterproof performance, as one embodiment of this utility model, such as Figure 1 , Figure 2As shown, the maintenance-free high-voltage cable heat fusion T-type connector of this utility model includes a connector body 1. A feed hopper 11 communicating with the interior of the connector body 1 is welded and fixed to the side wall of the connector body 1. A sealing cover 6 is threadedly connected to the feed hopper 11. A first sealing gasket 10 is fixed inside the sealing cover 6 by adhesive. Both ends of the connector body 1 are threadedly connected to a retaining sleeve 2. An O-ring 20 is provided inside each of the two retaining sleeves 2. A second sealing gasket 21 is fixed to both ends of the connector body 1 by adhesive. Clamping mechanisms 3 and cables 4 are provided on both sides of the sealing cover 6. The conductors 40 of the two cables 4 extend into the connector body 1.

[0025] In use, rotate the two ferrules 2 to disengage them from the connector body 1, insert the conductors 40 of the two cables 4 into the connector body 1, unscrew the sealing cap 6, and introduce the molten welding material into the connector body 1 through the feed hopper 11 to achieve the fusion connection of the two conductors 40. After heat fusion, place the sealing cap 6 on the feed hopper 11 and tighten it to prevent water from entering the feed hopper 11. Push the two ferrules 2 towards the connector body 1 and tighten the two ferrules 2. The two O-ring seals 20 are squeezed and deformed, and the two O-ring seals 20 can fit tightly against the two cables 4, improving the waterproof performance of the connector body 1.

[0026] To facilitate the fixing of cable 4, for example, as shown... Figure 1 , Figure 3 , Figure 4 As shown, the clamping mechanism 3 includes a collar 7, a retainer 9, a clamping block 12, and a locking bolt 13. The collar 7 is welded and fixed to the connector body 1. Multiple connecting rods 8 are welded and fixed to the side of the collar 7 away from the sealing cover 6. The retainer 9 is located on the side of the collar 7 away from the sealing cover 6. The ends of the multiple connecting rods 8 away from the collar 7 are all welded to the retainer 9. Anti-slip pads 14 are fixed inside the retainer 9 and the clamping block 12 with adhesive. The retainer 9 and the clamping block 12 are each provided with two screw holes that are adapted to the locking bolt 13.

[0027] When in use, loosen the locking bolt 13, pass the two cables 4 through the two clamps 9 and insert the two conductors 40 into the connector body 1, then tighten the locking bolt 13. The anti-slip pad 14 is in close contact with the cable 4 to facilitate cable clamping and prevent the conductors 40 from separating after heat melting.

[0028] To improve the stability of the connector body 1, for example, such as Figure 1 As shown, a support 5 is welded and fixed to the bottom end of the connector body 1, and mounting holes are provided at the four corners of the bottom end of the support 5.

[0029] When in use, after the cable 4 is laid, the bottom end of the bolt used to fix the support 5 is passed through the mounting holes at the four corners of the bottom of the support 5, which makes it easy to fix the support 5 to the ground or other locations, thus improving the stability of the connector body 1.

[0030] To facilitate gripping and rotating the sealing cap 6, for example, as shown Figure 1 As shown, the outer wall of the sealing cover 6 is integrally formed with multiple anti-slip protrusions.

[0031] To facilitate gripping and rotating the card sleeve 2, for example, as shown... Figure 1 As shown, the outer walls of both card sleeves 2 are provided with multiple anti-slip textures.

[0032] In use, the locking bolt 13 is loosened, the two retaining sleeves 2 are rotated, and the two retaining sleeves 2 are disengaged from the connector body 1. The two cables 4 are passed through the two retaining seats 9 and the two conductors 40 are inserted into the connector body 1. The sealing cap 6 is unscrewed, and the molten welding material is introduced into the connector body 1 through the feeding hopper 11 to achieve the fusion connection of the two conductors 40. After heat fusion, the sealing cap 6 is placed on the feeding hopper 11 and tightened to prevent water from entering the feeding hopper 11. The two retaining sleeves 2 are pushed towards the connector body 1 and the two retaining sleeves 2 are tightened. The two O-rings 20 are squeezed and deformed, and the two O-rings 20 can fit tightly against the two cables 4, improving the waterproof performance of the connector body 1.

[0033] Tighten the locking bolt 13, and the anti-slip pad 14 will be in close contact with the cable 4 to facilitate cable clamping and prevent the conductor 40 from separating after heat melting;

[0034] After the cable 4 is laid, the bottom end of the bolt used to fix the support 5 is passed through the mounting holes at the four corners of the bottom of the support 5, which makes it easy to fix the support 5 to the ground or other locations, thus improving the stability of the connector body 1.

[0035] 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 descriptions of the above embodiments and specifications 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. Contents not described in detail in this utility model are considered prior art known to those skilled in the art.

Claims

1. A maintenance-free high-voltage cable heat fusion T-joint, characterized in that, The device includes a connector body (1), a feed hopper (11) that communicates with the interior of the connector body (1) is fixed to the side wall of the connector body (1), a sealing cover (6) is threaded onto the feed hopper (11), a first sealing gasket (10) is fixed inside the sealing cover (6), a retainer (2) is threaded onto both ends of the connector body (1), an O-ring (20) is provided inside both retainers (2), a second sealing gasket (21) is fixed onto both ends of the connector body (1), a clamping mechanism (3) and a cable (4) are provided on both sides of the sealing cover (6), and the conductors (40) of both cables (4) extend into the connector body (1).

2. The maintenance-free high-voltage cable thermofusion T-joint according to claim 1, characterized in that, The clamping mechanism (3) includes a collar (7), a card holder (9), a clamping block (12), and a locking bolt (13). The collar (7) is fixed on the connector body (1). Multiple connecting rods (8) are fixed on the side of the collar (7) away from the sealing cover (6). The card holder (9) is located on the side of the collar (7) away from the sealing cover (6). The ends of the multiple connecting rods (8) away from the collar (7) are all connected to the card holder (9). Anti-slip pads (14) are fixed inside the card holder (9) and the clamping block (12). The card holder (9) and the clamping block (12) are each provided with two screw holes that are compatible with the locking bolt (13).

3. The maintenance-free high-voltage cable thermofusion T-joint according to claim 1, characterized in that, The bottom end of the connector body (1) is fixed with a support (5), and the four corners of the bottom end of the support (5) are provided with mounting holes.

4. The maintenance-free high-voltage cable thermofusion T-joint according to claim 1, characterized in that, The outer wall of the sealing cap (6) is integrally formed with multiple anti-slip protrusions.

5. A maintenance-free high-voltage cable thermofusion T-joint according to claim 1, characterized in that, The outer walls of both of the card sleeves (2) are provided with multiple anti-slip textures.

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