A fusion-type three-core cable terminal

Abstract

The utility model belongs to the technical field of high-voltage cables, and discloses a fusion-joined three-core cable terminal, comprising a first cable line and a second cable line, a fuse box is arranged on the outer side of the first cable line, a movable groove is provided on the left side of the fuse box, the first cable line is slidably connected inside the movable groove, a combustion chamber is fixedly connected to the top of the fuse box, a feed groove is provided inside the combustion chamber, a slide groove is provided at the front end of the fuse box, a telescopic rod is slidably connected inside the slide groove, a spring is sleeved on the outer side of the telescopic rod, the left side of the spring is tightly arranged at the front end of the slide groove, a handle is tightly arranged on the right side of the spring, the first cable line and the second cable line are arranged inside the fuse box, through the above scheme, the problem that the sealing tube of the cable terminal often adopts a straight tube or a cap structure that is wide at the bottom and narrow at the top is solved, but after such a sealing tube is sleeved with an insulating tape, a gap is easily formed, so that the sealing tube and the insulating tape are not in close contact, and it is easy to loosen during use, resulting in separation of the sealing tube and the insulating tape, accelerating the aging of the insulating tape, and then losing the protective effect of the sealing tube on the insulating tape.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage cables, in particular to a fusion-joined three-core cable terminal. Background Art

[0002] In order to meet the needs of high-voltage loads, existing high-voltage circuits mainly transmit high-voltage power through cables, which are connected to each other through cables to achieve the purpose of long-distance power transmission.

[0003] At the same time, the patent with application number 202121944032.9 discloses a 10-35kV fusion-bonded cross-linked cable terminal, including a cable body and at least one phase core terminal extending from the cable body, wherein the phase core terminal includes a cable conductor, an inner semi-conductive layer of the cable, a cable insulation layer, an outer semi-conductive layer of the cable and a metal shielding layer from the inside to the outside, and the upper ends of the cable conductor, the cable insulation layer and the outer semi-conductive layer of the cable are distributed in a stepped structure; the phase core terminal also includes an additional insulating layer, a stress cone and an umbrella skirt; the additional insulating layer surrounds the cable insulation layer, and the additional insulating layer is fused with the cable insulation layer; the stress cone is embedded in the additional insulating layer; the stress cone is an inverted cone; the lower end of the stress cone embraces the upper end of the outer semi-conductive layer of the cable; the upper end of the metal shielding layer is lower than the lower end of the stress cone; the metal shielding layer is connected to a grounding wire; and the additional insulating layer is located in the umbrella skirt.

[0004] However, in the implementation of relevant technologies, it was found that the sealing tubes of 10-35kV fusion-connected cross-linked cable terminals often adopt a straight tube or a cap structure that is wide at the bottom and narrow at the top. However, after such a sealing tube is put on the insulating tape, gaps are likely to appear, resulting in loose contact between the sealing tube and the insulating tape, which is prone to loosening during use, causing the sealing tube and the insulating tape to separate, accelerating the aging of the insulating tape, and thus losing the protective effect of the sealing tube on the insulating tape. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the utility model provides a fusion-jointed three-core cable terminal. When the metal wire is coated, the metal wire is separated from another group of wires by a pull ring on the outside of the metal wire. There is no need to connect accessories one by one for installation, and it is not easy to cause mutual contact and interference during installation, which reduces the labor intensity of construction workers and improves installation efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fusion-type three-core cable terminal, comprising a first cable line and a second cable line, a fuse box is arranged on the outer side of the first cable line, a movable groove is opened on the left side of the fuse box, the first cable line is slidably connected inside the movable groove, a combustion chamber is fixedly connected to the top of the fuse box, a feed groove is opened inside the combustion chamber, a slide groove is opened at the front end of the fuse box, a telescopic rod is slidably connected inside the slide groove, a spring is sleeved on the outer side of the telescopic rod, the left side of the spring is tightly arranged on the front end of the slide groove, and a handle is tightly arranged on the right side of the spring, and the first cable line and the second cable line are arranged inside the fuse box.

[0007] Preferably, a copper piece is provided inside the first cable, the outer side of the copper piece is spirally provided on a filler, a pull ring is wound around the outer side of the filler, and a coil spring is tightly provided on the outer side of the pull ring.

[0008] Preferably, rubber is arranged inside the filler, the front end of the rubber is fixedly connected to the extension sleeve, and the interior of the extension sleeve is provided with a metal wire.

[0009] Preferably, a circular hole groove is opened inside the metal wire, and a metal wire is arranged inside the circular hole groove of the metal wire. The metal wire is arranged in three groups, and the metal wires are evenly arranged inside the rubber.

[0010] Preferably, a connecting tube is sleeved on the front end of the metal wire, a pipe sleeve is sleeved on the outer side of the connecting tube, a draw rope is arranged inside the pipe sleeve, and the pipe sleeve and the draw rope are slidably connected.

[0011] Preferably, the connecting tube, the hot-melt tube, the tube sleeve and the pull rope are provided in three groups and are evenly arranged on the outside of the rubber.

[0012] Preferably, the first cable is made of rubber antistatic material, and the coil spring is configured as a transverse force spring.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model separates the metal wire from another group of wires by using the pull ring on the outside of the metal wire when covering the metal wire, and has the advantages of no need to connect accessories one by one for installation, no mutual contact and interference are likely to occur during installation, reducing the labor intensity of construction workers and improving installation efficiency.

[0015] 2. The utility model welds the metal wires inside two groups of cables through a fuse box, which makes it easy for workers to connect the cables, thereby achieving the purpose of long-distance power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the plastic spiral strip of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fuse box of the utility model;

[0019] Figure 4 This is a schematic diagram of the rubber structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the first cable structure of the utility model.

[0021] In the figure: 1. a first cable;

[0022] 2. Fuse box; 201. Telescopic rod; 202. Spring; 203. Handle; 204. Combustion chamber; 205. Moving slot; 206. Sliding slot; 207. Feeding slot;

[0023] 3. Rubber; 301. Extension sleeve; 302. Metal wire;

[0024] 4. second cable; 401. copper part; 402. spring; 403. pull ring; 404. filler;

[0025] 5. Connecting pipe; 501. Hot-melt pipe; 502. Pipe sleeve; 503. Plastic spiral strip. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5As shown, the utility model provides a fusion-type three-core cable terminal, including a first cable line 1 and a second cable line 4, a fuse box 2 is arranged on the outside of the first cable line 1, a movable groove 205 is opened on the left side of the fuse box 2, the first cable line 1 is slidably connected inside the movable groove 205, a combustion chamber 204 is fixedly connected to the top of the fuse box 2, a feed groove 207 is opened inside the combustion chamber 204, a slide groove 206 is opened at the front end of the fuse box 2, a telescopic rod 201 is slidably connected inside the slide groove 206, a spring 202 is sleeved on the outside of the telescopic rod 201, and the spring 202 is on the left side. The side is tightly arranged at the front end of the slide groove 206, the reaction force of the spring 202 is pressed against the outside of the handle 203, and the first cable 1 and the second cable 4 are arranged inside the fuse box 2. By placing the metal wire 302 inside the movable groove 205 on the left side of the fuse box 2, the metal wire 302 pushes the telescopic rod 201 to be squeezed outward and cooperates with the spring 202 to move closer to the handle 203. At this time, the material is poured into the combustion chamber 204, and the inside of the combustion chamber 204 falls into the feed trough 207 and is fused with the metal wire 302.

[0028] Specifically, a copper piece 401 is provided inside the first cable 1, and the outer side of the copper piece 401 is spirally provided on the filler 404. A pull ring 403 is wound around the outer side of the filler 404, and a coil spring 402 is tightly provided on the outer side of the pull ring 403. The first cable 1 is peeled off layer by layer, and the metal wires 302 are prevented from touching and interfering with each other during installation. The pull ring 403 is pulled by the coil spring 402 to make the conductive layer contact with the ground.

[0029] Furthermore, the filler 404 is provided with rubber 3, the front end of the rubber 3 is fixedly connected to the extension sleeve 301, and the extension sleeve 301 has a metal wire 302 inside. The metal wire 302 is placed inside the extension sleeve 301 to support the metal wire 302.

[0030] Furthermore, a circular hole groove is opened inside the metal wire 302, and the metal wire 302 is arranged inside the circular hole groove of the metal wire 302. There are three groups of metal wires 302, and the metal wires 302 are evenly arranged inside the rubber 3. By setting three groups of metal wires 302, it is more convenient to turn on the power.

[0031] It is worth mentioning that the front end of the metal wire 302 is sleeved with a connecting tube 5, the outer side of the connecting tube 5 is sleeved with a tube sleeve 502, the interior of the tube sleeve 502 is provided with a plastic spiral strip 503, the tube sleeve 502 and the plastic spiral strip 503 are slidably connected, and by pulling the plastic spiral strip 503, the tube sleeve 502 is pressed tightly against the outer side of the metal wire 302 to form a cable accessory.

[0032] It is worth noting that the connecting pipe 5, the hot melt pipe 501, the pipe sleeve 502 and the plastic spiral strip 503 are arranged in three groups and are evenly arranged on the outside of the rubber 3. They are not easy to touch and interfere with each other during installation, which reduces the labor intensity of construction workers and improves installation efficiency.

[0033] It is worth mentioning that the first cable 1 is made of antistatic material, which is convenient for extending the service life during later use, and the coil spring 402 is configured as an elastic coil spring with higher plasticity when winding.

[0034] Working principle:

[0035] First, the staff will use a knife to pry open the outer side of the first cable 1, cut slowly, and measure with a ruler, so that the copper part 401 inside the first cable 1 will leak out. At this time, the copper part 401 will be peeled off and removed, and the filler 404 inside the copper part 401 will be removed, and the coil spring 402 will be wound to the outside of the rubber 3. After the winding is completed, the pull ring 403 will be pulled to the right, and the pull ring 403 will be driven by the coil spring 402 to slide to the right. At this time, the metal wire 302 inside the rubber 3 will be separated, and the connecting tube 5 will be sleeved inside the metal wire 302. At this time, the hot melt tube 501 and the tube sleeve 502 will be sleeved on the outside of the metal wire 302. At this time, the plastic spiral strip 503 is pulled, and the tube sleeve 502 is pressed tightly on the outside of the metal wire 302 to form a cable accessory;

[0036] When the metal wire 302 is shorter, the metal wire 302 is placed inside the movable groove 205 on the left side of the fuse box 2. At this time, the metal wire 302 pushes the telescopic rod 201 to be squeezed outward and cooperates with the spring 202 to move closer to the handle 203. At this time, the material is poured into the combustion chamber 204, and the inside of the combustion chamber 204 falls into the feeding groove 207 and is fused with the metal wire 302.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fusion-type three-core cable terminal, comprising a first cable line (1) and a second cable line (4), characterized in that: A fuse box (2) is arranged on the outside of the first cable (1), a movable groove (205) is provided on the left side of the fuse box (2), the first cable (1) is slidably connected inside the movable groove (205), a combustion chamber (204) is fixedly connected to the top of the fuse box (2), a feed groove (207) is provided inside the combustion chamber (204), a slide groove (206) is provided at the front end of the fuse box (2), a telescopic rod (201) is slidably connected inside the slide groove (206), a spring (202) is sleeved on the outside of the telescopic rod (201), the left side of the spring (202) is tightly arranged on the front end of the slide groove (206), and a handle (203) is tightly arranged on the right side of the spring (202), and the first cable (1) and the second cable (4) are arranged inside the fuse box (2).

2. A fusion-type three-core cable terminal according to claim 1, characterized in that: A copper piece (401) is arranged inside the first cable (1), a filler (404) is spirally arranged on the outside of the copper piece (401), a pull ring (403) is wound around the outside of the filler (404), and a coil spring (402) is tightly arranged on the outside of the pull ring (403).

3. A fusion-type three-core cable terminal according to claim 2, characterized in that: The filler (404) is provided with rubber (3) inside, the front end of the rubber (3) is fixedly connected to the extension sleeve (301), and the extension sleeve (301) has a metal wire (302) inside.

4. A fusion-type three-core cable terminal according to claim 3, characterized in that: A circular hole groove is provided inside the metal wire (302), and a metal wire (302) is arranged inside the circular hole groove of the metal wire (302). Three groups of the metal wires (302) are arranged, and the metal wires (302) are evenly arranged inside the rubber (3).

5. A fusion-type three-core cable terminal according to claim 3, characterized in that: The front end of the metal wire (302) is sleeved with a connecting tube (5), the outer side of the connecting tube (5) is sleeved with a pipe sleeve (502), the interior of the pipe sleeve (502) is provided with a plastic spiral strip (503), and the pipe sleeve (502) and the plastic spiral strip (503) are slidably connected.

6. A fusion-type three-core cable terminal according to claim 5, characterized in that: The connecting pipe (5), the hot-melt pipe (501), the pipe sleeve (502) and the plastic spiral strip (503) are provided in three groups and are evenly arranged on the outside of the rubber (3).

7. A fusion-type three-core cable terminal according to claim 2, characterized in that: The first cable (1) is configured as an antistatic material, and the coil spring (402) is configured as a transverse force spring.

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