Cable with ultrahigh insulation joint

Abstract

The utility model relates to the technical field of cables, in particular to a cable with an ultrahigh insulation joint, which comprises two symmetrical cables, and an insulation joint is arranged between the two cables. A second heat shrink tube is sleeved on the outer part between the connecting tube and the outer sheath; the connecting base is inserted into the inserting cavity, and a plurality of sealing grooves connected with the sealing rings in an inserted mode are formed in one end face of the connecting base; through the insulation joint arranged between the two cables, through the structures of the connecting sleeve, the connecting seat, the fixing seat, the second heat shrink tube and the like, the insulation joint can play a good waterproof role outside the two cable joints, external water stains and the like are prevented from permeating to the cable joints, high insulativity of the insulation joint is ensured, and the service life of the cable is prolonged. The device is suitable for humid environment and outdoor use; the first heat shrink tubes are arranged at the two ends of the two core bodies, so that the connection tightness between the core bodies and the crimping copper tubes can be improved, and the waterproof performance between the two core bodies can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable with an ultra-high insulation joint. Background Art

[0002] Cables are cables used for power transmission, consisting of one or more mutually insulated conductors and an outer insulating protective layer; commonly used cables include power cables, control cables, compensation cables, shielded cables, etc.; cable insulation joints are components used to connect cables. Their main function is to keep the line unobstructed, keep the cable sealed, and ensure the insulation level at the cable joints, so that it can operate safely and reliably.

[0003] The utility model patent with authorization announcement number CN219144990U discloses a cable joint, which includes a first connecting sleeve, a sliding sleeve, and a second connecting sleeve. The first connecting sleeve and the second connecting sleeve are fixed on the outer walls of the front and rear ends of the cable line. A sliding cavity is formed between the inner side of the first connecting sleeve and the outer wall of the cable line. The sliding sleeve is provided with a first spring cavity with an opening toward the first connecting sleeve. The front end of the first connecting sleeve is slidably connected to the first spring cavity. A tension spring is fixedly provided in the first spring cavity. The two ends of the tension spring are respectively fixedly connected to the first connecting sleeve and the sliding sleeve. The sliding sleeve is provided with a sliding inner wall. The sliding inner wall is attached to the outer wall of the cable line and penetrates into the sliding cavity. The sliding inner wall The wall is located in the sliding cavity and is fixed with a retaining ring, the front end of the sliding sleeve is fixed with a hook column arranged in a circumferential manner, the front end of the hook column is fixed with a fixing hook extending inward, the outer wall of the second connecting sleeve is provided with a slide rail groove corresponding to the fixing hook, and the outer wall of the second connecting sleeve is located on one side of the slide rail groove and is provided with a hook groove connected with it; when the fixing hook moves to the hook groove, the compression spring will reset the blocking slider, and at this time the blocking slider blocks the channel between the hook groove and the slide rail groove to prevent the fixing hook from falling off the hook groove. When it is necessary to separate the two cables, the pull ring is pulled by the shifting block to drive the blocking slider to retract into the second spring cavity, and the second connecting sleeve is rotated to move the fixing hook to the slide rail groove, and separate the fixing hook from the second connecting sleeve, thereby realizing rapid separation between the cables.

[0004] Although the cable joint is convenient for connecting cables and is easy to disassemble, it is difficult to ensure the effective sealing of the joint after the cables are connected, which may easily cause water leakage after the joint is installed. It is difficult to ensure the insulation of the joint and is not suitable for humid environments or outdoor use. In view of this, we propose a cable with an ultra-high insulation joint. Utility Model Content

[0005] In order to solve the above-mentioned problem, the utility model provides a cable with an ultra-high insulation joint.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A cable with an extra-high insulation joint comprises two symmetrical cables with an insulation joint provided between the two cables;

[0008] The cable comprises a core body, a shielding layer, an insulating layer, an armor layer and an outer sheath arranged in sequence from the inside to the outside; two opposite ends of the two core bodies are sleeved with a crimping copper tube at the outside, and a first heat shrink tube is sleeved at the outside between the two ends of the crimping copper tube and the shielding layer;

[0009] The insulating joint includes two connecting sleeves sleeved on the outside of the cable, and the inner wall of the connecting sleeve is embedded with a plurality of waterproof rings that fit the outer wall of the outer sheath; the two ends of the two connecting sleeves that are separated from each other are installed with connecting tubes, and the outside between the connecting tubes and the outer sheath is sleeved with a second heat shrink tube; the two opposite ends of the two connecting tubes are coaxially fixed with a fixing seat and a connecting seat, and the fixing seat and the connecting seat are detachably connected; an insertion cavity is provided on one end face of the fixing seat, and a plurality of concentrically arranged sealing rings are fixed on the inner wall of the insertion cavity; the connecting seat is inserted into the insertion cavity, and a plurality of sealing grooves that are plugged into the sealing rings are provided on one end face of the connecting seat.

[0010] Furthermore, a plurality of first annular grooves are formed on the outer wall of the outer sheath, and the inner wall of the second heat shrink tube is embedded in the first annular grooves.

[0011] Furthermore, a plurality of second annular grooves are formed on the outer wall of the connecting tube, and the inner wall of the second heat shrink tube is embedded in the second annular grooves.

[0012] Furthermore, a side plate is provided on one side of the connecting seat, and the connecting sleeve passes through the center of the side plate. Threaded rods are fixed at the upper and lower ends of one end surface of the side plate, and nuts are threadedly connected to the ends of the threaded rods. Two symmetrical protrusions are fixed on the outer wall of the fixing seat, and the threaded rod passes through the protrusions.

[0013] Furthermore, the cross-sectional shape of the waterproof ring is annular, and the waterproof ring is a product made of rubber material.

[0014] Furthermore, the fixing seat and the front connecting sleeve, and the connecting seat and the rear connecting sleeve are all integrally formed structures.

[0015] Furthermore, the crimped copper tube is a finished product made of alloy copper material, and the crimped copper tube is crimped and fixed to the core body.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Through the insulating joint set between the two cables: in the structure of the connecting sleeve, the connecting seat, the fixing seat, the second heat shrink tube, etc., the insulating joint can play a good waterproof role outside the two cable joints, preventing external water stains from penetrating into the cable joints, ensuring the high insulation of the insulating joint, and suitable for humid environments and outdoor use;

[0018] 2. By providing the first heat shrink tube at both ends of the two core bodies, the connection tightness between the core body and the crimped copper tube can be improved, and the sealing performance can be improved, thereby improving the waterproof performance between the two core bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 4 It is a structural cross-sectional view of the cable in the utility model;

[0023] Figure 5 It is a partial structural cross-sectional view of the utility model;

[0024] Figure 6 It is a schematic diagram of the explosion structure of the insulating joint in the utility model.

[0025] In the figure:

[0026] 1. Cable; 10. Core; 11. Shielding layer; 12. Insulation layer; 13. Armor layer; 14. Outer sheath; 141. First annular groove; 15. Crimped copper tube; 16. First heat shrink tube;

[0027] 2. Insulating joint; 20. Connecting sleeve; 201. Waterproof ring; 21. Connecting pipe; 211. Second annular groove; 22. Fixing seat; 221. Insertion cavity; 222. Sealing ring; 223. Protrusion; 23. Connecting seat; 231. Sealing groove; 24. Side plate; 241. Threaded rod; 242. Nut; 25. Second heat shrink tube. DETAILED DESCRIPTION

[0028] 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.

[0029] This embodiment provides a technical solution:

[0030] See also Figure 1-Figure 6 A cable with an ultra-high insulation joint comprises two symmetrical cables 1, and an insulating joint 2 is arranged between the two cables 1. The cable 1 comprises a core 10, a shielding layer 11, an insulating layer 12, an armor layer 13 and an outer sheath 14 arranged in sequence from the inside to the outside; two opposite ends of the two cores 10 are sleeved with a crimping copper tube 15 at the outside, and a first heat shrink tube 16 is sleeved at the outside between the two ends of the crimping copper tube 15 and the shielding layer 11; the insulating joint 2 comprises two connecting sleeves 20 sleeved on the outside of the cable 1, and the inner wall of the connecting sleeve 20 is embedded with a plurality of waterproof rings 201 that fit the outer wall of the outer sheath 14; two opposite ends of the two connecting sleeves 20 are installed There is a connecting tube 21, and a second heat shrink tube 25 is sleeved on the outside between the connecting tube 21 and the outer sheath 14; a fixing seat 22 and a connecting seat 23 are coaxially fixed at two opposite ends of the two connecting tubes 21, and the fixing seat 22 and the connecting seat 23 are detachably connected; an insert cavity 221 is provided on one end face of the fixing seat 22, and a plurality of concentrically arranged sealing rings 222 are fixed on the inner wall of the insert cavity 221; the connecting seat 23 is inserted into the insert cavity 221, and a plurality of sealing grooves 231 that are plugged into the sealing rings 222 are provided on one end face of the connecting seat 23.

[0031] In this embodiment, the outer wall of the outer sheath 14 is provided with a plurality of first annular grooves 141, and the inner wall of the second heat shrink tube 25 is embedded in the first annular grooves 141. This design can improve the tightness of the connection between the second heat shrink tube 25 and the outer sheath 14 and improve the waterproof performance.

[0032] In this embodiment, the outer wall of the connecting tube 21 is provided with a plurality of second annular grooves 211, and the inner wall of the second heat shrink tube 25 is embedded in the second annular grooves 211. This design can improve the tightness of the connection between the second heat shrink tube 25 and the connecting tube 21, and improve the waterproof performance.

[0033] In this embodiment, a side plate 24 is provided on one side of the connecting seat 23, the connecting sleeve 20 passes through the center of the side plate 24, and a threaded rod 241 is fixed at both ends of one end surface of the side plate 24, and a nut 242 is threadedly connected to the end of the threaded rod 241; two symmetrical protrusions 223 are fixed on the outer wall of the fixing seat 22, and the threaded rod 241 passes through the protrusions 223. This design facilitates the connection and fixation of the connecting seat 23 and the fixing seat 22, and facilitates the disassembly of the connecting seat 23 and the fixing seat 22.

[0034] In this embodiment, the cross-sectional shape of the waterproof ring 201 is annular, and the waterproof ring 201 is made of rubber material. This design can improve the tightness of the connection between the inner wall of the connecting tube 21 and the outer wall of the cable 1, thereby improving the waterproof performance of the insulating joint 2.

[0035] In this embodiment, the fixing seat 22 and the front connecting sleeve 20, and the connecting seat 23 and the rear connecting sleeve 20 are all integrally formed. The integrally formed design enables the fixing seat 22 and the front connecting sleeve 20, and the connecting seat 23 and the rear connecting sleeve 20 to have better connection strength, thereby increasing the service life of the insulating joint 2.

[0036] In this embodiment, the crimped copper tube 15 is a finished product made of alloy copper, and the crimped copper tube 15 is crimped and fixed to the core 10. The alloy copper material has good electrical conductivity, which is beneficial to the power transmission between the two cores 10.

[0037] It can be understood that the fixing seat 22 and the connecting sleeve 20 on the front side, and the connecting seat 23 and the connecting sleeve 20 on the rear side in this embodiment are all made of solid insulating materials. This design can ensure the insulation performance of the fixing seat 22 and the connecting sleeve 20 on the front side, and the connecting seat 23 and the connecting sleeve 20 on the rear side, thereby improving the insulation performance of the insulating joint.

[0038] It should be supplemented that the second heat shrink tube 25 in the present embodiment can shrink when heated. When the second heat shrink tube 25 shrinks, the second heat shrink tube 25 can shrink to the first annular groove 141 and the second annular groove 211. This design not only improves the waterproof insulation effect of the second heat shrink tube 25, but also improves the connection reliability between the second heat shrink tube 25 and the outer sheath 14 and the connecting tube 21.

[0039] When in use, the user first passes one end of the two cables 1 through the connecting tubes 21 on both sides, then passes the first heat shrink tube 16 through the core body 10, butts the two core bodies 10, and sleeves the crimping copper tube 15 on the outside between the two core bodies 10, and crimps the crimping copper tube 15 at the same time, so that the core body 10 is fixed to the crimping copper tube 15. At this time, the user heats the first heat shrink tube 16 on both sides, and the first heat shrink tube 16 shrinks and sleeves on the outside of the shielding layer 11 and the crimping copper tube 15, and then the user connects the first heat shrink tube 16 to the shielding layer 11. The connecting seat 23 is aligned with the insertion cavity 221 and inserted, and the sealing ring 222 is inserted into the sealing groove 231 at the same time. At this time, the user passes the threaded rod 241 through the protrusion 223 and tightens the nut 242 on the threaded rod 241. The connecting seat 23 is fixed to the fixing seat 22. Finally, the user puts the second heat shrink tube 25 between the second annular groove 211 and the first annular groove 141 on both sides, and heats the second heat shrink tube 25 simultaneously. The second heat shrink tube 25 is fastened to the outside between the outer sheath 14 and the connecting tube 21, and the installation is completed.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cable with an ultra-high insulation joint, comprising two symmetrical cables (1), an insulating joint (2) being arranged between the two cables (1), characterized in that: The cable (1) comprises a core (10), a shielding layer (11), an insulating layer (12), an armor layer (13) and an outer sheath (14) which are arranged in sequence from the inside to the outside; two opposite ends of the two cores (10) are provided with a crimping copper tube (15) at the outside, and a first heat shrink tube (16) is provided at the outside between the two ends of the crimping copper tube (15) and the shielding layer (11); The insulating joint (2) comprises two connecting sleeves (20) sleeved on the outside of the cable (1); the inner wall of the connecting sleeve (20) is embedded with a plurality of waterproof rings (201) that fit the outer wall of the outer sheath (14); two opposite ends of the two connecting sleeves (20) are each provided with a connecting tube (21); the outer portion between the connecting tube (21) and the outer sheath (14) is sleeved with a second heat shrink tube (25); two opposite ends of the two connecting tubes (21) are respectively provided with a A fixing seat (22) and a connecting seat (23) are coaxially fixed, and the fixing seat (22) and the connecting seat (23) are detachably connected; an inserting cavity (221) is provided on one end surface of the fixing seat (22), and a plurality of concentrically arranged sealing rings (222) are fixed on the inner wall of the inserting cavity (221); the connecting seat (23) is inserted into the inserting cavity (221), and a plurality of sealing grooves (231) are provided on one end surface of the connecting seat (23) for inserting into the sealing rings (222).

2. The cable with super-high insulation joint according to claim 1, characterized in that: The outer wall of the outer sheath (14) is provided with a plurality of first annular grooves (141), and the inner wall of the second heat shrink tube (25) is embedded in the first annular grooves (141).

3. The cable with super-high insulation joint according to claim 1, characterized in that: The outer wall of the connecting tube (21) is provided with a plurality of second annular grooves (211), and the inner wall of the second heat shrink tube (25) is embedded in the second annular grooves (211).

4. The cable with super-high insulation joint according to claim 1, characterized in that: A side plate (24) is provided on one side of the connecting seat (23), the connecting sleeve (20) passes through the center of the side plate (24), and threaded rods (241) are fixed at both upper and lower ends of one end surface of the side plate (24), and a nut (242) is threadedly connected to the end of the threaded rod (241); two symmetrical protrusions (223) are fixed on the outer wall of the fixing seat (22), and the threaded rod (241) passes through the protrusions (223).

5. The cable with super-high insulation joint according to claim 1, characterized in that: The cross-sectional shape of the waterproof ring (201) is annular, and the waterproof ring (201) is a product made of rubber material.

6. The cable with super-high insulation joint according to claim 1, characterized in that: The fixing seat (22) and the front connecting sleeve (20), and the connecting seat (23) and the rear connecting sleeve (20) are all integrally formed structures.

7. The cable with super-high insulation joint according to claim 1, characterized in that: The crimped copper tube (15) is a finished product made of alloy copper, and the crimped copper tube (15) and the core body (10) are crimped and fixed.

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